diff options
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-utils.c')
| -rw-r--r-- | xlators/mgmt/glusterd/src/glusterd-utils.c | 15046 |
1 files changed, 15046 insertions, 0 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c new file mode 100644 index 00000000000..90ef2cf4c9c --- /dev/null +++ b/xlators/mgmt/glusterd/src/glusterd-utils.c @@ -0,0 +1,15046 @@ +/* + Copyright (c) 2006-2012 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ +#include <inttypes.h> + +#if defined(GF_LINUX_HOST_OS) +#include <mntent.h> +#else +#include "mntent_compat.h" +#endif +#include <dlfcn.h> +#if (HAVE_LIB_XML) +#include <libxml/encoding.h> +#include <libxml/xmlwriter.h> +#endif + +#include <glusterfs/glusterfs.h> +#include <glusterfs/compat.h> +#include <glusterfs/dict.h> +#include <glusterfs/xlator.h> +#include <glusterfs/logging.h> +#include "glusterd-messages.h" +#include <glusterfs/timer.h> +#include <glusterfs/defaults.h> +#include <glusterfs/compat.h> +#include <glusterfs/syncop.h> +#include <glusterfs/run.h> +#include <glusterfs/compat-errno.h> +#include <glusterfs/statedump.h> +#include <glusterfs/syscall.h> +#include "glusterd-mem-types.h" +#include "glusterd.h" +#include "glusterd-op-sm.h" +#include "glusterd-geo-rep.h" +#include "glusterd-sm.h" +#include "glusterd-utils.h" +#include "glusterd-store.h" +#include "glusterd-volgen.h" +#include "glusterd-pmap.h" +#include <glusterfs/glusterfs-acl.h> +#include "glusterd-syncop.h" +#include "glusterd-mgmt.h" +#include "glusterd-locks.h" +#include "glusterd-messages.h" +#include "glusterd-volgen.h" +#include "glusterd-snapshot-utils.h" +#include "glusterd-svc-mgmt.h" +#include "glusterd-svc-helper.h" +#include "glusterd-shd-svc.h" +#include "glusterd-quotad-svc.h" +#include "glusterd-snapd-svc.h" +#include "glusterd-bitd-svc.h" +#include "glusterd-gfproxyd-svc.h" +#include "glusterd-server-quorum.h" +#include <glusterfs/quota-common-utils.h> +#include <glusterfs/common-utils.h> +#include "glusterd-shd-svc-helper.h" + +#include "xdr-generic.h" +#include <sys/resource.h> +#include <inttypes.h> +#include <signal.h> +#include <sys/types.h> +#include <sys/ioctl.h> +#include <sys/socket.h> +#include <rpc/pmap_clnt.h> +#include <unistd.h> +#include <fnmatch.h> +#include <sys/statvfs.h> +#include <ifaddrs.h> + +#ifdef GF_SOLARIS_HOST_OS +#include <sys/sockio.h> +#endif + +#ifdef __FreeBSD__ +#include <sys/sysctl.h> +#include <sys/param.h> +#include <sys/queue.h> +#include <libprocstat.h> +#include <libutil.h> +#endif + +#define NFS_PROGRAM 100003 +#define NFSV3_VERSION 3 + +#define MOUNT_PROGRAM 100005 +#define MOUNTV3_VERSION 3 +#define MOUNTV1_VERSION 1 + +#define NLM_PROGRAM 100021 +#define NLMV4_VERSION 4 +#define NLMV1_VERSION 1 + +#ifdef BUILD_GNFS +#define GLUSTERD_GET_NFS_PIDFILE(pidfile, priv) \ + do { \ + int32_t _nfs_pid_len; \ + _nfs_pid_len = snprintf(pidfile, PATH_MAX, "%s/nfs/nfs.pid", \ + priv->rundir); \ + if ((_nfs_pid_len < 0) || (_nfs_pid_len >= PATH_MAX)) { \ + pidfile[0] = 0; \ + } \ + } while (0) +#endif + +#define GLUSTERD_GET_QUOTAD_PIDFILE(pidfile, priv) \ + do { \ + int32_t _quotad_pid_len; \ + _quotad_pid_len = snprintf(pidfile, PATH_MAX, "%s/quotad/quotad.pid", \ + priv->rundir); \ + if ((_quotad_pid_len < 0) || (_quotad_pid_len >= PATH_MAX)) { \ + pidfile[0] = 0; \ + } \ + } while (0) + +gf_boolean_t +is_brick_mx_enabled(void) +{ + char *value = NULL; + int ret = 0; + gf_boolean_t enabled = _gf_false; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + this = THIS; + + priv = this->private; + + ret = dict_get_strn(priv->opts, GLUSTERD_BRICK_MULTIPLEX_KEY, + SLEN(GLUSTERD_BRICK_MULTIPLEX_KEY), &value); + + if (!ret) + ret = gf_string2boolean(value, &enabled); + + return ret ? _gf_false : enabled; +} + +int +get_mux_limit_per_process(int *mux_limit) +{ + char *value = NULL; + int ret = -1; + int max_bricks_per_proc = 0; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + this = THIS; + GF_VALIDATE_OR_GOTO("glusterd", this, out); + + priv = this->private; + GF_VALIDATE_OR_GOTO(this->name, priv, out); + + if (!is_brick_mx_enabled()) { + max_bricks_per_proc = 1; + ret = 0; + goto out; + } + + ret = dict_get_strn(priv->opts, GLUSTERD_BRICKMUX_LIMIT_KEY, + SLEN(GLUSTERD_BRICKMUX_LIMIT_KEY), &value); + if (ret) { + value = GLUSTERD_BRICKMUX_LIMIT_DFLT_VALUE; + } + ret = gf_string2int(value, &max_bricks_per_proc); + if (ret) + goto out; + +out: + *mux_limit = max_bricks_per_proc; + + gf_msg_debug("glusterd", 0, "Mux limit set to %d bricks per process", + *mux_limit); + + return ret; +} + +int +get_gd_vol_thread_limit(int *thread_limit) +{ + char *value = NULL; + int ret = -1; + int vol_per_thread_limit = 0; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + this = THIS; + GF_VALIDATE_OR_GOTO("glusterd", this, out); + + priv = this->private; + GF_VALIDATE_OR_GOTO(this->name, priv, out); + + if (!is_brick_mx_enabled()) { + vol_per_thread_limit = 1; + ret = 0; + goto out; + } + + ret = dict_get_strn(priv->opts, GLUSTERD_VOL_CNT_PER_THRD, + SLEN(GLUSTERD_VOL_CNT_PER_THRD), &value); + if (ret) { + value = GLUSTERD_VOL_CNT_PER_THRD_DEFAULT_VALUE; + } + ret = gf_string2int(value, &vol_per_thread_limit); + if (ret) + goto out; + +out: + *thread_limit = vol_per_thread_limit; + + gf_msg_debug("glusterd", 0, + "Per Thread volume limit set to %d glusterd to populate dict " + "data parallel", + *thread_limit); + + return ret; +} + +extern struct volopt_map_entry glusterd_volopt_map[]; +extern glusterd_all_vol_opts valid_all_vol_opts[]; + +static glusterd_lock_t lock; + +static int +_brick_for_each(glusterd_volinfo_t *volinfo, dict_t *mod_dict, void *data, + int (*fn)(glusterd_volinfo_t *, glusterd_brickinfo_t *, + dict_t *mod_dict, void *)) +{ + int ret = 0; + glusterd_brickinfo_t *brickinfo = NULL; + xlator_t *this = THIS; + + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + gf_msg_debug(this->name, 0, "Found a brick - %s:%s", + brickinfo->hostname, brickinfo->path); + ret = fn(volinfo, brickinfo, mod_dict, data); + if (ret) + goto out; + } +out: + return ret; +} + +/* This is going to be a O(n^2) operation as we have to pick a brick, + make sure it belong to this machine, and compare another brick belonging + to this machine (if exists), is sharing the backend */ +static void +gd_set_shared_brick_count(glusterd_volinfo_t *volinfo) +{ + glusterd_brickinfo_t *brickinfo = NULL; + glusterd_brickinfo_t *trav = NULL; + + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + if (gf_uuid_compare(brickinfo->uuid, MY_UUID)) + continue; + brickinfo->fs_share_count = 0; + cds_list_for_each_entry(trav, &volinfo->bricks, brick_list) + { + if (!gf_uuid_compare(trav->uuid, MY_UUID) && + (trav->statfs_fsid == brickinfo->statfs_fsid)) { + brickinfo->fs_share_count++; + } + } + } + + return; +} + +int +glusterd_volume_brick_for_each(glusterd_volinfo_t *volinfo, void *data, + int (*fn)(glusterd_volinfo_t *, + glusterd_brickinfo_t *, + dict_t *mod_dict, void *)) +{ + gd_set_shared_brick_count(volinfo); + + return _brick_for_each(volinfo, NULL, data, fn); +} + +int32_t +glusterd_get_lock_owner(uuid_t *uuid) +{ + gf_uuid_copy(*uuid, lock.owner); + return 0; +} + +static int32_t +glusterd_set_lock_owner(uuid_t owner) +{ + gf_uuid_copy(lock.owner, owner); + // TODO: set timestamp + return 0; +} + +static int32_t +glusterd_unset_lock_owner(uuid_t owner) +{ + gf_uuid_clear(lock.owner); + // TODO: set timestamp + return 0; +} + +gf_boolean_t +glusterd_is_fuse_available() +{ + int fd = 0; + +#ifdef __NetBSD__ + fd = open("/dev/puffs", O_RDWR); +#else + fd = open("/dev/fuse", O_RDWR); +#endif + + if (fd > -1 && !sys_close(fd)) + return _gf_true; + else + return _gf_false; +} + +int32_t +glusterd_lock(uuid_t uuid) +{ + uuid_t owner; + char new_owner_str[50] = ""; + char owner_str[50] = ""; + int ret = -1; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + + GF_ASSERT(uuid); + + glusterd_get_lock_owner(&owner); + + if (!gf_uuid_is_null(owner)) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_GLUSTERD_LOCK_FAIL, + "Unable to get lock" + " for uuid: %s, lock held by: %s", + uuid_utoa_r(uuid, new_owner_str), uuid_utoa_r(owner, owner_str)); + goto out; + } + + ret = glusterd_set_lock_owner(uuid); + + if (!ret) { + gf_msg_debug(this->name, 0, + "Cluster lock held by" + " %s", + uuid_utoa(uuid)); + } + +out: + return ret; +} + +int32_t +glusterd_unlock(uuid_t uuid) +{ + uuid_t owner; + char new_owner_str[50] = ""; + char owner_str[50] = ""; + int32_t ret = -1; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + + GF_ASSERT(uuid); + + glusterd_get_lock_owner(&owner); + + if (gf_uuid_is_null(owner)) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_GLUSTERD_LOCK_FAIL, + "Cluster lock not held!"); + goto out; + } + + ret = gf_uuid_compare(uuid, owner); + + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_GLUSTERD_LOCK_FAIL, + "Cluster lock held by %s ," + "unlock req from %s!", + uuid_utoa_r(owner, owner_str), uuid_utoa_r(uuid, new_owner_str)); + goto out; + } + + ret = glusterd_unset_lock_owner(uuid); + + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_GLUSTERD_UNLOCK_FAIL, + "Unable to clear cluster " + "lock"); + goto out; + } + + ret = 0; + +out: + return ret; +} + +int +glusterd_get_uuid(uuid_t *uuid) +{ + glusterd_conf_t *priv = NULL; + + priv = THIS->private; + + GF_ASSERT(priv); + + gf_uuid_copy(*uuid, MY_UUID); + + return 0; +} + +int +glusterd_submit_request(struct rpc_clnt *rpc, void *req, call_frame_t *frame, + rpc_clnt_prog_t *prog, int procnum, + struct iobref *iobref, xlator_t *this, + fop_cbk_fn_t cbkfn, xdrproc_t xdrproc) +{ + char new_iobref = 0; + int ret = -1; + int count = 0; + ssize_t req_size = 0; + struct iobuf *iobuf = NULL; + struct iovec iov = { + 0, + }; + + GF_ASSERT(rpc); + GF_ASSERT(this); + + if (req) { + req_size = xdr_sizeof(xdrproc, req); + iobuf = iobuf_get2(this->ctx->iobuf_pool, req_size); + if (!iobuf) { + goto out; + }; + + if (!iobref) { + iobref = iobref_new(); + if (!iobref) { + gf_smsg("glusterd", GF_LOG_ERROR, ENOMEM, GD_MSG_NO_MEMORY, + NULL); + goto out; + } + + new_iobref = 1; + } + + iobref_add(iobref, iobuf); + + iov.iov_base = iobuf->ptr; + iov.iov_len = iobuf_pagesize(iobuf); + + /* Create the xdr payload */ + ret = xdr_serialize_generic(iov, req, xdrproc); + if (ret == -1) { + goto out; + } + iov.iov_len = ret; + count = 1; + } + + /* Send the msg */ + rpc_clnt_submit(rpc, prog, procnum, cbkfn, &iov, count, NULL, 0, iobref, + frame, NULL, 0, NULL, 0, NULL); + + /* Unconditionally set ret to 0 here. This is to guard against a double + * STACK_DESTROY in case of a failure in rpc_clnt_submit AFTER the + * request is sent over the wire: once in the callback function of the + * request and once in the error codepath of some of the callers of + * glusterd_submit_request(). + */ + ret = 0; +out: + if (new_iobref) { + iobref_unref(iobref); + } + + iobuf_unref(iobuf); + + return ret; +} + +struct iobuf * +glusterd_serialize_reply(rpcsvc_request_t *req, void *arg, struct iovec *outmsg, + xdrproc_t xdrproc) +{ + struct iobuf *iob = NULL; + ssize_t retlen = -1; + ssize_t rsp_size = 0; + + /* First, get the io buffer into which the reply in arg will + * be serialized. + */ + rsp_size = xdr_sizeof(xdrproc, arg); + iob = iobuf_get2(req->svc->ctx->iobuf_pool, rsp_size); + if (!iob) { + gf_msg("glusterd", GF_LOG_ERROR, ENOMEM, GD_MSG_NO_MEMORY, + "Failed to get iobuf"); + goto ret; + } + + iobuf_to_iovec(iob, outmsg); + /* Use the given serializer to translate the give C structure in arg + * to XDR format which will be written into the buffer in outmsg. + */ + /* retlen is used to received the error since size_t is unsigned and we + * need -1 for error notification during encoding. + */ + retlen = xdr_serialize_generic(*outmsg, arg, xdrproc); + if (retlen == -1) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_ENCODE_FAIL, + "Failed to encode message"); + goto ret; + } + + outmsg->iov_len = retlen; +ret: + if (retlen == -1) { + iobuf_unref(iob); + iob = NULL; + } + + return iob; +} + +int +glusterd_submit_reply(rpcsvc_request_t *req, void *arg, struct iovec *payload, + int payloadcount, struct iobref *iobref, + xdrproc_t xdrproc) +{ + struct iobuf *iob = NULL; + int ret = -1; + struct iovec rsp = { + 0, + }; + char new_iobref = 0; + + if (!req) { + GF_ASSERT(req); + goto out; + } + + if (!iobref) { + iobref = iobref_new(); + if (!iobref) { + gf_msg("glusterd", GF_LOG_ERROR, ENOMEM, GD_MSG_NO_MEMORY, + "out of memory"); + goto out; + } + + new_iobref = 1; + } + + iob = glusterd_serialize_reply(req, arg, &rsp, xdrproc); + if (!iob) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_SERIALIZE_MSG_FAIL, + "Failed to serialize reply"); + } else { + iobref_add(iobref, iob); + } + + ret = rpcsvc_submit_generic(req, &rsp, 1, payload, payloadcount, iobref); + + /* Now that we've done our job of handing the message to the RPC layer + * we can safely unref the iob in the hope that RPC layer must have + * ref'ed the iob on receiving into the txlist. + */ + if (ret == -1) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_REPLY_SUBMIT_FAIL, + "Reply submission failed"); + goto out; + } + + ret = 0; +out: + + if (new_iobref) { + iobref_unref(iobref); + } + + if (iob) + iobuf_unref(iob); + return ret; +} + +glusterd_volinfo_t * +glusterd_volinfo_unref(glusterd_volinfo_t *volinfo) +{ + int refcnt = -1; + glusterd_conf_t *conf = THIS->private; + + pthread_mutex_lock(&conf->volume_lock); + { + pthread_mutex_lock(&volinfo->reflock); + { + refcnt = --volinfo->refcnt; + } + pthread_mutex_unlock(&volinfo->reflock); + } + pthread_mutex_unlock(&conf->volume_lock); + if (!refcnt) { + glusterd_volinfo_delete(volinfo); + return NULL; + } + + return volinfo; +} + +glusterd_volinfo_t * +glusterd_volinfo_ref(glusterd_volinfo_t *volinfo) +{ + pthread_mutex_lock(&volinfo->reflock); + { + ++volinfo->refcnt; + } + pthread_mutex_unlock(&volinfo->reflock); + + return volinfo; +} + +int32_t +glusterd_volinfo_new(glusterd_volinfo_t **volinfo) +{ + glusterd_volinfo_t *new_volinfo = NULL; + int32_t ret = -1; + + GF_ASSERT(volinfo); + + new_volinfo = GF_CALLOC(1, sizeof(*new_volinfo), + gf_gld_mt_glusterd_volinfo_t); + + if (!new_volinfo) + goto out; + + LOCK_INIT(&new_volinfo->lock); + CDS_INIT_LIST_HEAD(&new_volinfo->vol_list); + CDS_INIT_LIST_HEAD(&new_volinfo->snapvol_list); + CDS_INIT_LIST_HEAD(&new_volinfo->bricks); + CDS_INIT_LIST_HEAD(&new_volinfo->ta_bricks); + CDS_INIT_LIST_HEAD(&new_volinfo->snap_volumes); + + new_volinfo->dict = dict_new(); + if (!new_volinfo->dict) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_DICT_CREATE_FAIL, NULL); + GF_FREE(new_volinfo); + + goto out; + } + + new_volinfo->gsync_slaves = dict_new(); + if (!new_volinfo->gsync_slaves) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_DICT_CREATE_FAIL, NULL); + dict_unref(new_volinfo->dict); + GF_FREE(new_volinfo); + goto out; + } + + new_volinfo->gsync_active_slaves = dict_new(); + if (!new_volinfo->gsync_active_slaves) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_DICT_CREATE_FAIL, NULL); + dict_unref(new_volinfo->dict); + dict_unref(new_volinfo->gsync_slaves); + GF_FREE(new_volinfo); + goto out; + } + + snprintf(new_volinfo->parent_volname, GD_VOLUME_NAME_MAX, "N/A"); + + new_volinfo->snap_max_hard_limit = GLUSTERD_SNAPS_MAX_HARD_LIMIT; + + new_volinfo->xl = THIS; + + glusterd_snapdsvc_build(&new_volinfo->snapd.svc); + glusterd_gfproxydsvc_build(&new_volinfo->gfproxyd.svc); + glusterd_shdsvc_build(&new_volinfo->shd.svc); + + pthread_mutex_init(&new_volinfo->store_volinfo_lock, NULL); + pthread_mutex_init(&new_volinfo->reflock, NULL); + + *volinfo = glusterd_volinfo_ref(new_volinfo); + + ret = 0; + +out: + gf_msg_debug(THIS->name, 0, "Returning %d", ret); + return ret; +} + +/* This function will create a new volinfo and then + * dup the entries from volinfo to the new_volinfo. + * + * @param volinfo volinfo which will be duplicated + * @param dup_volinfo new volinfo which will be created + * @param set_userauth if this true then auth info is also set + * + * @return 0 on success else -1 + */ +int32_t +glusterd_volinfo_dup(glusterd_volinfo_t *volinfo, + glusterd_volinfo_t **dup_volinfo, + gf_boolean_t set_userauth) +{ + int32_t ret = -1; + xlator_t *this = NULL; + glusterd_volinfo_t *new_volinfo = NULL; + + this = THIS; + GF_ASSERT(this); + GF_VALIDATE_OR_GOTO(this->name, volinfo, out); + GF_VALIDATE_OR_GOTO(this->name, dup_volinfo, out); + + ret = glusterd_volinfo_new(&new_volinfo); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_VOLINFO_SET_FAIL, + "not able to create the " + "duplicate volinfo for the volume %s", + volinfo->volname); + goto out; + } + + new_volinfo->type = volinfo->type; + new_volinfo->replica_count = volinfo->replica_count; + new_volinfo->arbiter_count = volinfo->arbiter_count; + new_volinfo->stripe_count = volinfo->stripe_count; + new_volinfo->disperse_count = volinfo->disperse_count; + new_volinfo->redundancy_count = volinfo->redundancy_count; + new_volinfo->dist_leaf_count = volinfo->dist_leaf_count; + new_volinfo->sub_count = volinfo->sub_count; + new_volinfo->subvol_count = volinfo->subvol_count; + new_volinfo->transport_type = volinfo->transport_type; + new_volinfo->brick_count = volinfo->brick_count; + new_volinfo->quota_conf_version = volinfo->quota_conf_version; + new_volinfo->quota_xattr_version = volinfo->quota_xattr_version; + new_volinfo->snap_max_hard_limit = volinfo->snap_max_hard_limit; + new_volinfo->quota_conf_cksum = volinfo->quota_conf_cksum; + + dict_copy(volinfo->dict, new_volinfo->dict); + dict_copy(volinfo->gsync_slaves, new_volinfo->gsync_slaves); + dict_copy(volinfo->gsync_active_slaves, new_volinfo->gsync_active_slaves); + gd_update_volume_op_versions(new_volinfo); + + if (set_userauth) { + glusterd_auth_set_username(new_volinfo, volinfo->auth.username); + glusterd_auth_set_password(new_volinfo, volinfo->auth.password); + } + + *dup_volinfo = new_volinfo; + ret = 0; +out: + if (ret && (NULL != new_volinfo)) { + (void)glusterd_volinfo_delete(new_volinfo); + } + return ret; +} + +/* This function will duplicate brickinfo + * + * @param brickinfo Source brickinfo + * @param dup_brickinfo Destination brickinfo + * + * @return 0 on success else -1 + */ +int32_t +glusterd_brickinfo_dup(glusterd_brickinfo_t *brickinfo, + glusterd_brickinfo_t *dup_brickinfo) +{ + int32_t ret = -1; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + + GF_VALIDATE_OR_GOTO(this->name, brickinfo, out); + GF_VALIDATE_OR_GOTO(this->name, dup_brickinfo, out); + + strcpy(dup_brickinfo->hostname, brickinfo->hostname); + strcpy(dup_brickinfo->path, brickinfo->path); + strcpy(dup_brickinfo->real_path, brickinfo->real_path); + strcpy(dup_brickinfo->device_path, brickinfo->device_path); + strcpy(dup_brickinfo->fstype, brickinfo->fstype); + strcpy(dup_brickinfo->mnt_opts, brickinfo->mnt_opts); + ret = gf_canonicalize_path(dup_brickinfo->path); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_CANONICALIZE_FAIL, + "Failed to canonicalize " + "brick path"); + goto out; + } + gf_uuid_copy(dup_brickinfo->uuid, brickinfo->uuid); + + dup_brickinfo->port = brickinfo->port; + dup_brickinfo->rdma_port = brickinfo->rdma_port; + if (NULL != brickinfo->logfile) { + dup_brickinfo->logfile = gf_strdup(brickinfo->logfile); + if (NULL == dup_brickinfo->logfile) { + ret = -1; + goto out; + } + } + strcpy(dup_brickinfo->brick_id, brickinfo->brick_id); + strcpy(dup_brickinfo->mount_dir, brickinfo->mount_dir); + dup_brickinfo->status = brickinfo->status; + dup_brickinfo->snap_status = brickinfo->snap_status; +out: + return ret; +} + +/* + * gd_vol_is_geo_rep_active: + * This function checks for any running geo-rep session for + * the volume given. + * + * Return Value: + * _gf_true : If any running geo-rep session. + * _gf_false: If no running geo-rep session. + */ + +gf_boolean_t +gd_vol_is_geo_rep_active(glusterd_volinfo_t *volinfo) +{ + gf_boolean_t active = _gf_false; + + GF_ASSERT(volinfo); + + if (volinfo->gsync_active_slaves && volinfo->gsync_active_slaves->count > 0) + active = _gf_true; + + return active; +} + +void +glusterd_auth_cleanup(glusterd_volinfo_t *volinfo) +{ + GF_ASSERT(volinfo); + + GF_FREE(volinfo->auth.username); + + GF_FREE(volinfo->auth.password); +} + +char * +glusterd_auth_get_username(glusterd_volinfo_t *volinfo) +{ + GF_ASSERT(volinfo); + + return volinfo->auth.username; +} + +char * +glusterd_auth_get_password(glusterd_volinfo_t *volinfo) +{ + GF_ASSERT(volinfo); + + return volinfo->auth.password; +} + +int32_t +glusterd_auth_set_username(glusterd_volinfo_t *volinfo, char *username) +{ + GF_ASSERT(volinfo); + GF_ASSERT(username); + + volinfo->auth.username = gf_strdup(username); + return 0; +} + +int32_t +glusterd_auth_set_password(glusterd_volinfo_t *volinfo, char *password) +{ + GF_ASSERT(volinfo); + GF_ASSERT(password); + + volinfo->auth.password = gf_strdup(password); + return 0; +} + +int32_t +glusterd_brickinfo_delete(glusterd_brickinfo_t *brickinfo) +{ + int32_t ret = -1; + + GF_ASSERT(brickinfo); + + cds_list_del_init(&brickinfo->brick_list); + + (void)gf_store_handle_destroy(brickinfo->shandle); + + GF_FREE(brickinfo->logfile); + GF_FREE(brickinfo); + + ret = 0; + + return ret; +} + +int32_t +glusterd_volume_brickinfos_delete(glusterd_volinfo_t *volinfo) +{ + glusterd_brickinfo_t *brickinfo = NULL; + glusterd_brickinfo_t *tmp = NULL; + int32_t ret = 0; + + GF_ASSERT(volinfo); + + cds_list_for_each_entry_safe(brickinfo, tmp, &volinfo->bricks, brick_list) + { + ret = glusterd_brickinfo_delete(brickinfo); + if (ret) + goto out; + } + +out: + gf_msg_debug(THIS->name, 0, "Returning %d", ret); + return ret; +} + +int +glusterd_volinfo_remove(glusterd_volinfo_t *volinfo) +{ + cds_list_del_init(&volinfo->vol_list); + glusterd_volinfo_unref(volinfo); + return 0; +} + +int32_t +glusterd_volinfo_delete(glusterd_volinfo_t *volinfo) +{ + int32_t ret = -1; + + GF_ASSERT(volinfo); + + cds_list_del_init(&volinfo->vol_list); + cds_list_del_init(&volinfo->snapvol_list); + + ret = glusterd_volume_brickinfos_delete(volinfo); + if (ret) + goto out; + if (volinfo->dict) + dict_unref(volinfo->dict); + if (volinfo->gsync_slaves) + dict_unref(volinfo->gsync_slaves); + if (volinfo->gsync_active_slaves) + dict_unref(volinfo->gsync_active_slaves); + GF_FREE(volinfo->logdir); + if (volinfo->rebal.dict) + dict_unref(volinfo->rebal.dict); + + /* Destroy the connection object for per volume svc daemons */ + glusterd_conn_term(&volinfo->snapd.svc.conn); + glusterd_conn_term(&volinfo->gfproxyd.svc.conn); + + gf_store_handle_destroy(volinfo->quota_conf_shandle); + gf_store_handle_destroy(volinfo->shandle); + gf_store_handle_destroy(volinfo->node_state_shandle); + gf_store_handle_destroy(volinfo->snapd.handle); + + glusterd_auth_cleanup(volinfo); + glusterd_shd_svcproc_cleanup(&volinfo->shd); + + pthread_mutex_destroy(&volinfo->store_volinfo_lock); + pthread_mutex_destroy(&volinfo->reflock); + LOCK_DESTROY(&volinfo->lock); + + GF_FREE(volinfo); + ret = 0; +out: + gf_msg_debug(THIS->name, 0, "Returning %d", ret); + return ret; +} + +int32_t +glusterd_brickprocess_new(glusterd_brick_proc_t **brickprocess) +{ + glusterd_brick_proc_t *new_brickprocess = NULL; + int32_t ret = -1; + + GF_VALIDATE_OR_GOTO(THIS->name, brickprocess, out); + + new_brickprocess = GF_CALLOC(1, sizeof(*new_brickprocess), + gf_gld_mt_glusterd_brick_proc_t); + + if (!new_brickprocess) + goto out; + + CDS_INIT_LIST_HEAD(&new_brickprocess->bricks); + CDS_INIT_LIST_HEAD(&new_brickprocess->brick_proc_list); + + new_brickprocess->brick_count = 0; + *brickprocess = new_brickprocess; + + ret = 0; + +out: + gf_msg_debug(THIS->name, 0, "Returning %d", ret); + return ret; +} + +int32_t +glusterd_brickinfo_new(glusterd_brickinfo_t **brickinfo) +{ + glusterd_brickinfo_t *new_brickinfo = NULL; + int32_t ret = -1; + + GF_ASSERT(brickinfo); + + new_brickinfo = GF_CALLOC(1, sizeof(*new_brickinfo), + gf_gld_mt_glusterd_brickinfo_t); + + if (!new_brickinfo) + goto out; + + CDS_INIT_LIST_HEAD(&new_brickinfo->brick_list); + CDS_INIT_LIST_HEAD(&new_brickinfo->mux_bricks); + pthread_mutex_init(&new_brickinfo->restart_mutex, NULL); + *brickinfo = new_brickinfo; + + ret = 0; + +out: + gf_msg_debug(THIS->name, 0, "Returning %d", ret); + return ret; +} + +int +glusterd_get_next_available_brickid(glusterd_volinfo_t *volinfo) +{ + glusterd_brickinfo_t *brickinfo = NULL; + char *token = NULL; + int brickid = 0; + int max_brickid = -1; + int ret = -1; + + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + token = strrchr(brickinfo->brick_id, '-'); + ret = gf_string2int32(++token, &brickid); + if (ret < 0) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_BRICK_ID_GEN_FAILED, + "Unable to generate brick ID"); + return ret; + } + if (brickid > max_brickid) + max_brickid = brickid; + } + + return max_brickid + 1; +} + +int32_t +glusterd_resolve_brick(glusterd_brickinfo_t *brickinfo) +{ + int32_t ret = -1; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + + GF_ASSERT(brickinfo); + if (!gf_uuid_compare(brickinfo->uuid, MY_UUID) || + (glusterd_peerinfo_find_by_uuid(brickinfo->uuid) != NULL)) { + ret = 0; + goto out; + } + + ret = glusterd_hostname_to_uuid(brickinfo->hostname, brickinfo->uuid); + +out: + gf_msg_debug(this->name, 0, "Returning %d", ret); + return ret; +} + +int32_t +glusterd_get_brick_mount_dir(char *brickpath, char *hostname, char *mount_dir) +{ + char *mnt_pt = NULL; + char *brick_dir = NULL; + int32_t ret = -1; + uuid_t brick_uuid = { + 0, + }; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + GF_ASSERT(brickpath); + GF_ASSERT(hostname); + GF_ASSERT(mount_dir); + + ret = glusterd_hostname_to_uuid(hostname, brick_uuid); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_HOSTNAME_TO_UUID_FAIL, + "Failed to convert hostname %s to uuid", hostname); + goto out; + } + + if (!gf_uuid_compare(brick_uuid, MY_UUID)) { + ret = glusterd_get_brick_root(brickpath, &mnt_pt); + if (ret) { + gf_msg(this->name, GF_LOG_WARNING, 0, + GD_MSG_BRICKPATH_ROOT_GET_FAIL, + "Could not get the root of the brick path %s", brickpath); + goto out; + } + + if (strncmp(brickpath, mnt_pt, strlen(mnt_pt))) { + gf_msg(this->name, GF_LOG_WARNING, 0, + GD_MSG_BRKPATH_MNTPNT_MISMATCH, "brick: %s brick mount: %s", + brickpath, mnt_pt); + ret = -1; + goto out; + } + + brick_dir = &brickpath[strlen(mnt_pt)]; + if (brick_dir[0] == '/') + brick_dir++; + + snprintf(mount_dir, VALID_GLUSTERD_PATHMAX, "/%s", brick_dir); + } + +out: + if (mnt_pt) + GF_FREE(mnt_pt); + + gf_msg_trace(this->name, 0, "Returning %d", ret); + return ret; +} + +int32_t +glusterd_brickinfo_new_from_brick(char *brick, glusterd_brickinfo_t **brickinfo, + gf_boolean_t construct_real_path, + char **op_errstr) +{ + char *hostname = NULL; + char *path = NULL; + char *tmp_host = NULL; + char *tmp_path = NULL; + int32_t ret = -1; + glusterd_brickinfo_t *new_brickinfo = NULL; + xlator_t *this = NULL; + char abspath[PATH_MAX] = ""; + + this = THIS; + GF_ASSERT(this); + GF_ASSERT(brick); + GF_ASSERT(brickinfo); + + tmp_host = gf_strdup(brick); + if (tmp_host && !get_host_name(tmp_host, &hostname)) + goto out; + tmp_path = gf_strdup(brick); + if (tmp_path && !get_path_name(tmp_path, &path)) + goto out; + + GF_ASSERT(hostname); + GF_ASSERT(path); + + ret = glusterd_brickinfo_new(&new_brickinfo); + if (ret) + goto out; + + ret = gf_canonicalize_path(path); + if (ret) + goto out; + ret = snprintf(new_brickinfo->hostname, sizeof(new_brickinfo->hostname), + "%s", hostname); + if (ret < 0 || ret >= sizeof(new_brickinfo->hostname)) { + ret = -1; + goto out; + } + ret = snprintf(new_brickinfo->path, sizeof(new_brickinfo->path), "%s", + path); + if (ret < 0 || ret >= sizeof(new_brickinfo->path)) { + ret = -1; + goto out; + } + + if (construct_real_path) { + ret = glusterd_hostname_to_uuid(new_brickinfo->hostname, + new_brickinfo->uuid); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_HOSTNAME_TO_UUID_FAIL, + "Failed to convert hostname %s to uuid", hostname); + if (op_errstr) + gf_asprintf(op_errstr, + "Host %s is not in " + "\'Peer in Cluster\' state", + new_brickinfo->hostname); + goto out; + } + } + + if (construct_real_path && !gf_uuid_compare(new_brickinfo->uuid, MY_UUID) && + new_brickinfo->real_path[0] == '\0') { + if (!realpath(new_brickinfo->path, abspath)) { + /* ENOENT indicates that brick path has not been created + * which is a valid scenario */ + if (errno != ENOENT) { + gf_msg(this->name, GF_LOG_CRITICAL, errno, + GD_MSG_BRICKINFO_CREATE_FAIL, + "realpath" + " () failed for brick %s. The " + "underlying filesystem may be in bad " + "state. Error - %s", + new_brickinfo->path, strerror(errno)); + ret = -1; + goto out; + } + } + if (strlen(abspath) >= sizeof(new_brickinfo->real_path)) { + ret = -1; + goto out; + } + (void)strncpy(new_brickinfo->real_path, abspath, + sizeof(new_brickinfo->real_path)); + } + + *brickinfo = new_brickinfo; + + ret = 0; +out: + GF_FREE(tmp_host); + if (tmp_host) + GF_FREE(tmp_path); + + gf_msg_debug(this->name, 0, "Returning %d", ret); + return ret; +} + +static gf_boolean_t +_is_prefix(char *str1, char *str2) +{ + GF_ASSERT(str1); + GF_ASSERT(str2); + + int i = 0; + int len1 = 0; + int len2 = 0; + int small_len = 0; + char *bigger = NULL; + gf_boolean_t prefix = _gf_true; + + len1 = strlen(str1); + len2 = strlen(str2); + small_len = min(len1, len2); + + /* + * If either one (not both) of the strings are 0-length, they are not + * prefixes of each other. + */ + if ((small_len == 0) && (len1 != len2)) { + return _gf_false; + } + + for (i = 0; i < small_len; i++) { + if (str1[i] != str2[i]) { + prefix = _gf_false; + break; + } + } + + if (len1 < len2) + bigger = str2; + + else if (len1 > len2) + bigger = str1; + + else + return prefix; + + if (bigger[small_len] != '/') + prefix = _gf_false; + + return prefix; +} + +/* Checks if @path is available in the peer identified by @uuid + * 'availability' is determined by querying current state of volumes + * in the cluster. */ +gf_boolean_t +glusterd_is_brickpath_available(uuid_t uuid, char *path) +{ + glusterd_brickinfo_t *brickinfo = NULL; + glusterd_volinfo_t *volinfo = NULL; + glusterd_conf_t *priv = NULL; + gf_boolean_t available = _gf_false; + char tmp_path[PATH_MAX] = ""; + + priv = THIS->private; + + if (snprintf(tmp_path, PATH_MAX, "%s", path) >= PATH_MAX) + goto out; + /* path may not yet exist */ + if (!realpath(path, tmp_path)) { + if (errno != ENOENT) { + gf_msg(THIS->name, GF_LOG_CRITICAL, errno, + GD_MSG_BRICKINFO_CREATE_FAIL, + "realpath" + " () failed for brick %s. The " + "underlying filesystem may be in bad " + "state. Error - %s", + path, strerror(errno)); + goto out; + } + /* When realpath(3) fails, tmp_path is undefined. */ + (void)snprintf(tmp_path, sizeof(tmp_path), "%s", path); + } + + cds_list_for_each_entry(volinfo, &priv->volumes, vol_list) + { + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + if (gf_uuid_compare(uuid, brickinfo->uuid)) + continue; + if (_is_prefix(brickinfo->real_path, tmp_path)) { + gf_msg(THIS->name, GF_LOG_CRITICAL, 0, + GD_MSG_BRICKINFO_CREATE_FAIL, + "_is_prefix call failed for brick %s " + "against brick %s", + tmp_path, brickinfo->real_path); + goto out; + } + } + } + available = _gf_true; +out: + return available; +} + +int +glusterd_validate_and_create_brickpath(glusterd_brickinfo_t *brickinfo, + uuid_t volume_id, char *volname, + char **op_errstr, gf_boolean_t is_force, + gf_boolean_t ignore_partition) +{ + int ret = -1; + char parentdir[PATH_MAX] = ""; + struct stat parent_st = { + 0, + }; + struct stat brick_st = { + 0, + }; + struct stat root_st = { + 0, + }; + char msg[2048] = ""; + gf_boolean_t is_created = _gf_false; + char glusterfs_dir_path[PATH_MAX] = ""; + int32_t len = 0; + + ret = sys_mkdir(brickinfo->path, 0755); + if (ret) { + if (errno != EEXIST) { + len = snprintf(msg, sizeof(msg), + "Failed to create " + "brick directory for brick %s:%s. " + "Reason : %s ", + brickinfo->hostname, brickinfo->path, + strerror(errno)); + gf_smsg( + "glusterd", GF_LOG_ERROR, errno, GD_MSG_CREATE_BRICK_DIR_FAILED, + "Brick_hostname=%s, Brick_path=%s, Reason=%s", + brickinfo->hostname, brickinfo->path, strerror(errno), NULL); + goto out; + } + } else { + is_created = _gf_true; + } + + ret = sys_lstat(brickinfo->path, &brick_st); + if (ret) { + len = snprintf(msg, sizeof(msg), + "lstat failed on %s. " + "Reason : %s", + brickinfo->path, strerror(errno)); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_LSTAT_FAIL, + "Failed on Brick_path=%s, Reason=%s", brickinfo->path, + strerror(errno), NULL); + goto out; + } + + if ((!is_created) && (!S_ISDIR(brick_st.st_mode))) { + len = snprintf(msg, sizeof(msg), + "The provided path %s " + "which is already present, is not a directory", + brickinfo->path); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_DIR_OP_FAILED, + "Brick_path=%s", brickinfo->path, NULL); + ret = -1; + goto out; + } + + len = snprintf(parentdir, sizeof(parentdir), "%s/..", brickinfo->path); + if ((len < 0) || (len >= sizeof(parentdir))) { + ret = -1; + goto out; + } + + ret = sys_lstat("/", &root_st); + if (ret) { + len = snprintf(msg, sizeof(msg), + "lstat failed on /. " + "Reason : %s", + strerror(errno)); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_LSTAT_FAIL, + "Failed on /, Reason=%s", strerror(errno), NULL); + goto out; + } + + ret = sys_lstat(parentdir, &parent_st); + if (ret) { + len = snprintf(msg, sizeof(msg), + "lstat failed on %s. " + "Reason : %s", + parentdir, strerror(errno)); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_LSTAT_FAIL, + "Failed on parentdir=%s, Reason=%s", parentdir, strerror(errno), + NULL); + goto out; + } + if (strncmp(volname, GLUSTER_SHARED_STORAGE, + SLEN(GLUSTER_SHARED_STORAGE)) && + sizeof(GLUSTERD_DEFAULT_WORKDIR) <= (strlen(brickinfo->path) + 1) && + !strncmp(brickinfo->path, GLUSTERD_DEFAULT_WORKDIR, + (sizeof(GLUSTERD_DEFAULT_WORKDIR) - 1))) { + len = snprintf(msg, sizeof(msg), + "Brick isn't allowed to be " + "created inside glusterd's working directory."); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_BRICK_CREATION_FAIL, + NULL); + ret = -1; + goto out; + } + + if (!is_force) { + if (brick_st.st_dev != parent_st.st_dev) { + len = snprintf(msg, sizeof(msg), + "The brick %s:%s " + "is a mount point. Please create a " + "sub-directory under the mount point " + "and use that as the brick directory. " + "Or use 'force' at the end of the " + "command if you want to override this " + "behavior.", + brickinfo->hostname, brickinfo->path); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_BRICK_CREATE_MNTPNT, + "Use 'force' at the end of the command if you want to " + "override this behavior, Brick_hostname=%s, Brick_path=%s", + brickinfo->hostname, brickinfo->path, NULL); + ret = -1; + goto out; + } else if (parent_st.st_dev == root_st.st_dev) { + len = snprintf(msg, sizeof(msg), + "The brick %s:%s " + "is being created in the root " + "partition. It is recommended that " + "you don't use the system's root " + "partition for storage backend. Or " + "use 'force' at the end of the " + "command if you want to override this " + "behavior.", + brickinfo->hostname, brickinfo->path); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_BRICK_CREATE_ROOT, + "Use 'force' at the end of the command if you want to " + "override this behavior, Brick_hostname=%s, Brick_path=%s", + brickinfo->hostname, brickinfo->path, NULL); + + /* If --wignore-partition flag is used, ignore warnings + * related to bricks being on root partition when 'force' + * is not used */ + if ((len < 0) || (len >= sizeof(msg)) || !ignore_partition) { + ret = -1; + goto out; + } + } + } + + ret = glusterd_check_and_set_brick_xattr( + brickinfo->hostname, brickinfo->path, volume_id, op_errstr, is_force); + if (ret) + goto out; + + /* create .glusterfs directory */ + len = snprintf(glusterfs_dir_path, sizeof(glusterfs_dir_path), "%s/%s", + brickinfo->path, ".glusterfs"); + if ((len < 0) || (len >= sizeof(glusterfs_dir_path))) { + ret = -1; + goto out; + } + + ret = sys_mkdir(glusterfs_dir_path, 0600); + if (ret && (errno != EEXIST)) { + len = snprintf(msg, sizeof(msg), + "Failed to create " + ".glusterfs directory for brick %s:%s. " + "Reason : %s ", + brickinfo->hostname, brickinfo->path, strerror(errno)); + gf_smsg("glusterd", GF_LOG_ERROR, errno, + GD_MSG_CREATE_GLUSTER_DIR_FAILED, + "Brick_hostname=%s, Brick_path=%s, Reason=%s", + brickinfo->hostname, brickinfo->path, strerror(errno), NULL); + goto out; + } + + ret = 0; + +out: + if (len < 0) { + ret = -1; + } + if (ret && is_created) { + (void)recursive_rmdir(brickinfo->path); + } + if (ret && !*op_errstr && msg[0] != '\0') + *op_errstr = gf_strdup(msg); + + return ret; +} + +int32_t +glusterd_volume_brickinfo_get(uuid_t uuid, char *hostname, char *path, + glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t **brickinfo) +{ + glusterd_brickinfo_t *brickiter = NULL; + uuid_t peer_uuid = {0}; + int32_t ret = -1; + xlator_t *this = NULL; + + this = THIS; + + if (uuid) { + gf_uuid_copy(peer_uuid, uuid); + } else { + ret = glusterd_hostname_to_uuid(hostname, peer_uuid); + if (ret) + goto out; + } + ret = -1; + cds_list_for_each_entry(brickiter, &volinfo->bricks, brick_list) + { + if ((gf_uuid_is_null(brickiter->uuid)) && + (glusterd_resolve_brick(brickiter) != 0)) + goto out; + if (gf_uuid_compare(peer_uuid, brickiter->uuid)) + continue; + + if (strcmp(brickiter->path, path) == 0) { + gf_msg_debug(this->name, 0, LOGSTR_FOUND_BRICK, brickiter->hostname, + brickiter->path, volinfo->volname); + ret = 0; + if (brickinfo) + *brickinfo = brickiter; + break; + } + } + +out: + gf_msg_debug(this->name, 0, "Returning %d", ret); + return ret; +} + +int32_t +glusterd_volume_ta_brickinfo_get(uuid_t uuid, char *hostname, char *path, + glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t **ta_brickinfo) +{ + glusterd_brickinfo_t *ta_brickiter = NULL; + int32_t ret = -1; + xlator_t *this = NULL; + + this = THIS; + + ret = -1; + + cds_list_for_each_entry(ta_brickiter, &volinfo->ta_bricks, brick_list) + { + if (strcmp(ta_brickiter->path, path) == 0 && + strcmp(ta_brickiter->hostname, hostname) == 0) { + gf_msg_debug(this->name, 0, LOGSTR_FOUND_BRICK, + ta_brickiter->hostname, ta_brickiter->path, + volinfo->volname); + ret = 0; + if (ta_brickinfo) + *ta_brickinfo = ta_brickiter; + break; + } + } + + gf_msg_debug(this->name, 0, "Returning %d", ret); + return ret; +} + +int32_t +glusterd_volume_brickinfo_get_by_brick(char *brick, glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t **brickinfo, + gf_boolean_t construct_real_path) +{ + int32_t ret = -1; + glusterd_brickinfo_t *tmp_brickinfo = NULL; + + GF_ASSERT(brick); + GF_ASSERT(volinfo); + + ret = glusterd_brickinfo_new_from_brick(brick, &tmp_brickinfo, + construct_real_path, NULL); + if (ret) + goto out; + + ret = glusterd_volume_brickinfo_get( + NULL, tmp_brickinfo->hostname, tmp_brickinfo->path, volinfo, brickinfo); + (void)glusterd_brickinfo_delete(tmp_brickinfo); +out: + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +gf_boolean_t +glusterd_is_brick_decommissioned(glusterd_volinfo_t *volinfo, char *hostname, + char *path) +{ + gf_boolean_t decommissioned = _gf_false; + glusterd_brickinfo_t *brickinfo = NULL; + int ret = -1; + + ret = glusterd_volume_brickinfo_get(NULL, hostname, path, volinfo, + &brickinfo); + if (ret) + goto out; + decommissioned = brickinfo->decommissioned; +out: + return decommissioned; +} + +int +glusterd_volinfo_find_by_volume_id(uuid_t volume_id, + glusterd_volinfo_t **volinfo) +{ + int32_t ret = -1; + xlator_t *this = NULL; + glusterd_volinfo_t *voliter = NULL; + glusterd_conf_t *priv = NULL; + + if (!volume_id) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_INVALID_ARGUMENT, NULL); + return -1; + } + + this = THIS; + priv = this->private; + + cds_list_for_each_entry(voliter, &priv->volumes, vol_list) + { + if (gf_uuid_compare(volume_id, voliter->volume_id)) + continue; + *volinfo = voliter; + ret = 0; + gf_msg_debug(this->name, 0, "Volume %s found", voliter->volname); + break; + } + return ret; +} + +int32_t +glusterd_volinfo_find(const char *volname, glusterd_volinfo_t **volinfo) +{ + glusterd_volinfo_t *tmp_volinfo = NULL; + int32_t ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + GF_ASSERT(volname); + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GF_ASSERT(priv); + + cds_list_for_each_entry(tmp_volinfo, &priv->volumes, vol_list) + { + if (!strcmp(tmp_volinfo->volname, volname)) { + gf_msg_debug(this->name, 0, "Volume %s found", volname); + ret = 0; + *volinfo = tmp_volinfo; + break; + } + } + + gf_msg_debug(this->name, 0, "Returning %d", ret); + return ret; +} + +gf_boolean_t +glusterd_volume_exists(const char *volname) +{ + glusterd_volinfo_t *tmp_volinfo = NULL; + gf_boolean_t volume_found = _gf_false; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + GF_ASSERT(volname); + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GF_ASSERT(priv); + + cds_list_for_each_entry(tmp_volinfo, &priv->volumes, vol_list) + { + if (!strcmp(tmp_volinfo->volname, volname)) { + gf_msg_debug(this->name, 0, "Volume %s found", volname); + volume_found = _gf_true; + break; + } + } + + return volume_found; +} + +int32_t +glusterd_service_stop(const char *service, char *pidfile, int sig, + gf_boolean_t force_kill) +{ + int32_t ret = -1; + pid_t pid = -1; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + if (!gf_is_service_running(pidfile, &pid)) { + ret = 0; + gf_msg(this->name, GF_LOG_INFO, 0, GD_MSG_ALREADY_STOPPED, + "%s already stopped", service); + goto out; + } + gf_msg_debug(this->name, 0, + "Stopping gluster %s running in pid: " + "%d", + service, pid); + + ret = kill(pid, sig); + if (ret) { + switch (errno) { + case ESRCH: + gf_msg_debug(this->name, 0, "%s is already stopped", service); + ret = 0; + goto out; + default: + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_SVC_KILL_FAIL, + "Unable to kill %s " + "service, reason:%s", + service, strerror(errno)); + } + } + if (!force_kill) + goto out; + + sleep(1); + if (gf_is_service_running(pidfile, &pid)) { + ret = kill(pid, SIGKILL); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_PID_KILL_FAIL, + "Unable to kill pid:%d, " + "reason:%s", + pid, strerror(errno)); + goto out; + } + } + + ret = 0; +out: + return ret; +} + +int32_t +glusterd_service_stop_nolock(const char *service, char *pidfile, int sig, + gf_boolean_t force_kill) +{ + int32_t ret = -1; + pid_t pid = -1; + xlator_t *this = NULL; + FILE *file = NULL; + + this = THIS; + GF_ASSERT(this); + + file = fopen(pidfile, "r+"); + if (file) { + ret = fscanf(file, "%d", &pid); + if (ret <= 0) { + gf_msg_debug(this->name, 0, "Unable to read pidfile: %s", pidfile); + goto out; + } + } + + if (kill(pid, 0) < 0) { + ret = 0; + gf_msg_debug(this->name, 0, "%s process not running: (%d) %s", service, + pid, strerror(errno)); + goto out; + } + gf_msg_debug(this->name, 0, + "Stopping gluster %s service running with " + "pid: %d", + service, pid); + + ret = kill(pid, sig); + if (ret) { + switch (errno) { + case ESRCH: + gf_msg_debug(this->name, 0, "%s is already stopped", service); + ret = 0; + goto out; + default: + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_SVC_KILL_FAIL, + "Unable to kill %s " + "service, reason:%s", + service, strerror(errno)); + } + } + if (!force_kill) + goto out; + + sleep(1); + if (kill(pid, 0) == 0) { + ret = kill(pid, SIGKILL); + if (ret) { + /* Process is already dead, don't fail */ + if (errno == ESRCH) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_PID_KILL_FAIL, + "Unable to find pid:%d, " + "must be dead already. Ignoring.", + pid); + } else { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_PID_KILL_FAIL, + "Unable to kill pid:%d, " + "reason:%s", + pid, strerror(errno)); + goto out; + } + } + } + + ret = 0; + +out: + if (file) + fclose(file); + + return ret; +} +void +glusterd_set_socket_filepath(char *sock_filepath, char *sockpath, size_t len) +{ + char xxh64[GF_XXH64_DIGEST_LENGTH * 2 + 1] = { + 0, + }; + + gf_xxh64_wrapper((unsigned char *)sock_filepath, strlen(sock_filepath), + GF_XXHSUM64_DEFAULT_SEED, xxh64); + snprintf(sockpath, len, "%s/%s.socket", GLUSTERD_SOCK_DIR, xxh64); +} + +void +glusterd_set_brick_socket_filepath(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, + char *sockpath, size_t len) +{ + char volume_dir[PATH_MAX] = ""; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + int expected_file_len = 0; + char export_path[PATH_MAX] = ""; + char sock_filepath[PATH_MAX] = ""; + int32_t slen = 0; + + expected_file_len = SLEN(GLUSTERD_SOCK_DIR) + SLEN("/") + + SHA256_DIGEST_LENGTH * 2 + SLEN(".socket") + 1; + GF_ASSERT(len >= expected_file_len); + this = THIS; + GF_ASSERT(this); + + priv = this->private; + + GLUSTERD_GET_VOLUME_PID_DIR(volume_dir, volinfo, priv); + GLUSTERD_REMOVE_SLASH_FROM_PATH(brickinfo->path, export_path); + slen = snprintf(sock_filepath, PATH_MAX, "%s/run/%s-%s", volume_dir, + brickinfo->hostname, export_path); + if (slen < 0) { + sock_filepath[0] = 0; + } + glusterd_set_socket_filepath(sock_filepath, sockpath, len); +} + +/* connection happens only if it is not already connected, + * reconnections are taken care by rpc-layer + */ +int32_t +glusterd_brick_connect(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, char *socketpath) +{ + int ret = 0; + char volume_id_str[64] = ""; + char *brickid = NULL; + dict_t *options = NULL; + struct rpc_clnt *rpc = NULL; + + GF_ASSERT(volinfo); + GF_ASSERT(brickinfo); + GF_ASSERT(socketpath); + + if (brickinfo->rpc == NULL) { + /* Setting frame-timeout to 10mins (600seconds). + * Unix domain sockets ensures that the connection is reliable. + * The default timeout of 30mins used for unreliable network + * connections is too long for unix domain socket connections. + */ + options = dict_new(); + if (!options) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_DICT_CREATE_FAIL, + NULL); + goto out; + } + + ret = rpc_transport_unix_options_build(options, socketpath, 600); + if (ret) + goto out; + + uuid_utoa_r(volinfo->volume_id, volume_id_str); + ret = gf_asprintf(&brickid, "%s:%s:%s", volume_id_str, + brickinfo->hostname, brickinfo->path); + if (ret < 0) + goto out; + + ret = glusterd_rpc_create(&rpc, options, glusterd_brick_rpc_notify, + brickid, _gf_false); + if (ret) { + GF_FREE(brickid); + goto out; + } + brickinfo->rpc = rpc; + } +out: + if (options) + dict_unref(options); + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +static int +_mk_rundir_p(glusterd_volinfo_t *volinfo) +{ + char rundir[PATH_MAX] = ""; + glusterd_conf_t *priv = NULL; + xlator_t *this = NULL; + int ret = -1; + + this = THIS; + priv = this->private; + GLUSTERD_GET_VOLUME_PID_DIR(rundir, volinfo, priv); + ret = mkdir_p(rundir, 0755, _gf_true); + if (ret) + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_CREATE_DIR_FAILED, + "Failed to create rundir"); + return ret; +} + +int32_t +glusterd_volume_start_glusterfs(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, + gf_boolean_t wait) +{ + int32_t ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + char pidfile[PATH_MAX + 1] = ""; + char volfile[PATH_MAX] = ""; + runner_t runner = { + 0, + }; + char exp_path[PATH_MAX] = ""; + char logfile[PATH_MAX] = ""; + int port = 0; + int rdma_port = 0; + char *bind_address = NULL; + char *localtime_logging = NULL; + char socketpath[PATH_MAX] = ""; + char glusterd_uuid[1024] = ""; + char valgrind_logfile[PATH_MAX] = ""; + char rdma_brick_path[PATH_MAX] = ""; + struct rpc_clnt *rpc = NULL; + rpc_clnt_connection_t *conn = NULL; + int pid = -1; + int32_t len = 0; + glusterd_brick_proc_t *brick_proc = NULL; + char *inet_family = NULL; + char *global_threading = NULL; + bool threading = false; + + GF_ASSERT(volinfo); + GF_ASSERT(brickinfo); + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GF_ASSERT(priv); + + if (brickinfo->snap_status == -1) { + gf_msg(this->name, GF_LOG_INFO, 0, GD_MSG_SNAPSHOT_PENDING, + "Snapshot is pending on %s:%s. " + "Hence not starting the brick", + brickinfo->hostname, brickinfo->path); + ret = 0; + goto out; + } + + GLUSTERD_GET_BRICK_PIDFILE(pidfile, volinfo, brickinfo, priv); + if (gf_is_service_running(pidfile, &pid)) { + goto connect; + } + + /* + * There are all sorts of races in the start/stop code that could leave + * a UNIX-domain socket or RPC-client object associated with a + * long-dead incarnation of this brick, while the new incarnation is + * listening on a new socket at the same path and wondering why we + * haven't shown up. To avoid the whole mess and be on the safe side, + * we just blow away anything that might have been left over, and start + * over again. + */ + glusterd_set_brick_socket_filepath(volinfo, brickinfo, socketpath, + sizeof(socketpath)); + (void)glusterd_unlink_file(socketpath); + rpc = brickinfo->rpc; + if (rpc) { + brickinfo->rpc = NULL; + conn = &rpc->conn; + pthread_mutex_lock(&conn->lock); + if (conn->reconnect) { + (void)gf_timer_call_cancel(rpc->ctx, conn->reconnect); + conn->reconnect = NULL; + } + pthread_mutex_unlock(&conn->lock); + rpc_clnt_unref(rpc); + } + + port = pmap_assign_port(THIS, brickinfo->port, brickinfo->path); + if (!port) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_PORTS_EXHAUSTED, + "All the ports in the range are exhausted, can't start " + "brick %s for volume %s", + brickinfo->path, volinfo->volname); + ret = -1; + goto out; + } + /* Build the exp_path, before starting the glusterfsd even in + valgrind mode. Otherwise all the glusterfsd processes start + writing the valgrind log to the same file. + */ + GLUSTERD_REMOVE_SLASH_FROM_PATH(brickinfo->path, exp_path); + +retry: + runinit(&runner); + + if (this->ctx->cmd_args.vgtool != _gf_none) { + /* Run bricks with valgrind. */ + if (volinfo->logdir) { + len = snprintf(valgrind_logfile, PATH_MAX, "%s/valgrind-%s-%s.log", + volinfo->logdir, volinfo->volname, exp_path); + } else { + len = snprintf(valgrind_logfile, PATH_MAX, + "%s/bricks/valgrind-%s-%s.log", priv->logdir, + volinfo->volname, exp_path); + } + if ((len < 0) || (len >= PATH_MAX)) { + ret = -1; + goto out; + } + + if (this->ctx->cmd_args.vgtool == _gf_memcheck) + runner_add_args(&runner, "valgrind", "--leak-check=full", + "--trace-children=yes", "--track-origins=yes", + NULL); + else + runner_add_args(&runner, "valgrind", "--tool=drd", NULL); + + runner_argprintf(&runner, "--log-file=%s", valgrind_logfile); + } + + if (volinfo->is_snap_volume) { + len = snprintf(volfile, PATH_MAX, "/%s/%s/%s/%s.%s.%s", + GLUSTERD_VOL_SNAP_DIR_PREFIX, + volinfo->snapshot->snapname, volinfo->volname, + volinfo->volname, brickinfo->hostname, exp_path); + } else { + len = snprintf(volfile, PATH_MAX, "%s.%s.%s", volinfo->volname, + brickinfo->hostname, exp_path); + } + if ((len < 0) || (len >= PATH_MAX)) { + ret = -1; + goto out; + } + + if (volinfo->logdir) { + len = snprintf(logfile, PATH_MAX, "%s/%s.log", volinfo->logdir, + exp_path); + } else { + len = snprintf(logfile, PATH_MAX, "%s/bricks/%s.log", priv->logdir, + exp_path); + } + if ((len < 0) || (len >= PATH_MAX)) { + ret = -1; + goto out; + } + + if (!brickinfo->logfile) + brickinfo->logfile = gf_strdup(logfile); + + (void)snprintf(glusterd_uuid, 1024, "*-posix.glusterd-uuid=%s", + uuid_utoa(MY_UUID)); + runner_add_args(&runner, SBIN_DIR "/glusterfsd", "-s", brickinfo->hostname, + "--volfile-id", volfile, "-p", pidfile, "-S", socketpath, + "--brick-name", brickinfo->path, "-l", brickinfo->logfile, + "--xlator-option", glusterd_uuid, "--process-name", "brick", + NULL); + + if (dict_get_strn(priv->opts, GLUSTERD_LOCALTIME_LOGGING_KEY, + SLEN(GLUSTERD_LOCALTIME_LOGGING_KEY), + &localtime_logging) == 0) { + if (strcmp(localtime_logging, "enable") == 0) + runner_add_arg(&runner, "--localtime-logging"); + } + + runner_add_arg(&runner, "--brick-port"); + if (volinfo->transport_type != GF_TRANSPORT_BOTH_TCP_RDMA) { + runner_argprintf(&runner, "%d", port); + } else { + len = snprintf(rdma_brick_path, sizeof(rdma_brick_path), "%s.rdma", + brickinfo->path); + if ((len < 0) || (len >= sizeof(rdma_brick_path))) { + ret = -1; + goto out; + } + rdma_port = pmap_assign_port(THIS, brickinfo->rdma_port, + rdma_brick_path); + if (!rdma_port) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_PORTS_EXHAUSTED, + "All rdma ports in the " + "range are exhausted, can't start brick %s for " + "volume %s", + rdma_brick_path, volinfo->volname); + ret = -1; + goto out; + } + runner_argprintf(&runner, "%d,%d", port, rdma_port); + runner_add_arg(&runner, "--xlator-option"); + runner_argprintf(&runner, "%s-server.transport.rdma.listen-port=%d", + volinfo->volname, rdma_port); + } + + if (dict_get_strn(volinfo->dict, VKEY_CONFIG_GLOBAL_THREADING, + SLEN(VKEY_CONFIG_GLOBAL_THREADING), + &global_threading) == 0) { + if ((gf_string2boolean(global_threading, &threading) == 0) && + threading) { + runner_add_arg(&runner, "--global-threading"); + } + } + + runner_add_arg(&runner, "--xlator-option"); + runner_argprintf(&runner, "%s-server.listen-port=%d", volinfo->volname, + port); + + if (dict_get_strn(this->options, "transport.socket.bind-address", + SLEN("transport.socket.bind-address"), + &bind_address) == 0) { + runner_add_arg(&runner, "--xlator-option"); + runner_argprintf(&runner, "transport.socket.bind-address=%s", + bind_address); + } + + if (volinfo->transport_type == GF_TRANSPORT_RDMA) + runner_argprintf(&runner, "--volfile-server-transport=rdma"); + else if (volinfo->transport_type == GF_TRANSPORT_BOTH_TCP_RDMA) + runner_argprintf(&runner, "--volfile-server-transport=socket,rdma"); + + ret = dict_get_str(this->options, "transport.address-family", &inet_family); + if (!ret) { + runner_add_arg(&runner, "--xlator-option"); + runner_argprintf(&runner, "transport.address-family=%s", inet_family); + } + + if (volinfo->memory_accounting) + runner_add_arg(&runner, "--mem-accounting"); + + if (is_brick_mx_enabled()) + runner_add_arg(&runner, "--brick-mux"); + + runner_log(&runner, "", GF_LOG_DEBUG, "Starting GlusterFS"); + + brickinfo->port = port; + brickinfo->rdma_port = rdma_port; + brickinfo->status = GF_BRICK_STARTING; + brickinfo->port_registered = _gf_false; + + if (wait) { + synclock_unlock(&priv->big_lock); + errno = 0; + ret = runner_run(&runner); + if (errno != 0) + ret = errno; + synclock_lock(&priv->big_lock); + + if (ret == EADDRINUSE) { + /* retry after getting a new port */ + gf_msg(this->name, GF_LOG_WARNING, -ret, + GD_MSG_SRC_BRICK_PORT_UNAVAIL, + "Port %d is used by other process", port); + + port = pmap_registry_alloc(this); + if (!port) { + gf_msg(this->name, GF_LOG_CRITICAL, 0, GD_MSG_NO_FREE_PORTS, + "Couldn't allocate a port"); + ret = -1; + goto out; + } + gf_msg(this->name, GF_LOG_NOTICE, 0, GD_MSG_RETRY_WITH_NEW_PORT, + "Retrying to start brick %s with new port %d", + brickinfo->path, port); + goto retry; + } + } else { + ret = runner_run_nowait(&runner); + } + + if (ret) { + brickinfo->port = 0; + brickinfo->rdma_port = 0; + goto out; + } + + ret = glusterd_brickprocess_new(&brick_proc); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICKPROC_NEW_FAILED, + "Failed to create " + "new brick process instance"); + goto out; + } + + brick_proc->port = brickinfo->port; + cds_list_add_tail(&brick_proc->brick_proc_list, &priv->brick_procs); + brickinfo->brick_proc = brick_proc; + cds_list_add_tail(&brickinfo->mux_bricks, &brick_proc->bricks); + brickinfo->brick_proc = brick_proc; + brick_proc->brick_count++; + +connect: + ret = glusterd_brick_connect(volinfo, brickinfo, socketpath); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICK_DISCONNECTED, + "Failed to connect to brick %s:%s on %s", brickinfo->hostname, + brickinfo->path, socketpath); + goto out; + } + +out: + if (ret) + brickinfo->status = GF_BRICK_STOPPED; + return ret; +} + +int32_t +glusterd_brick_unlink_socket_file(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo) +{ + char path[PATH_MAX] = ""; + char socketpath[PATH_MAX] = ""; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + GF_ASSERT(volinfo); + GF_ASSERT(brickinfo); + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GLUSTERD_GET_VOLUME_DIR(path, volinfo, priv); + glusterd_set_brick_socket_filepath(volinfo, brickinfo, socketpath, + sizeof(socketpath)); + + return glusterd_unlink_file(socketpath); +} + +int32_t +glusterd_brick_disconnect(glusterd_brickinfo_t *brickinfo) +{ + rpc_clnt_t *rpc = NULL; + glusterd_conf_t *priv = THIS->private; + + GF_ASSERT(brickinfo); + + if (!brickinfo) { + gf_msg_callingfn("glusterd", GF_LOG_WARNING, EINVAL, + GD_MSG_BRICK_NOT_FOUND, "!brickinfo"); + return -1; + } + + rpc = brickinfo->rpc; + brickinfo->rpc = NULL; + + if (rpc) { + glusterd_rpc_clnt_unref(priv, rpc); + } + + return 0; +} + +static gf_boolean_t +unsafe_option(dict_t *this, char *key, data_t *value, void *arg) +{ + /* + * Certain options are safe because they're already being handled other + * ways, such as being copied down to the bricks (all auth options) or + * being made irrelevant (event-threads). All others are suspect and + * must be checked in the next function. + */ + if (fnmatch("*auth*", key, 0) == 0) { + return _gf_false; + } + + if (fnmatch("*event-threads", key, 0) == 0) { + return _gf_false; + } + + if (fnmatch("*diagnostics.brick-log*", key, 0) == 0) { + return _gf_false; + } + + if (fnmatch("*diagnostics.client-log*", key, 0) == 0) { + return _gf_false; + } + if (fnmatch("user.*", key, 0) == 0) { + return _gf_false; + } + + return _gf_true; +} + +static int +opts_mismatch(dict_t *dict1, char *key, data_t *value1, void *dict2) +{ + data_t *value2 = dict_get(dict2, key); + int32_t min_len; + + /* + * If the option is only present on one, we can either look at the + * default or assume a mismatch. Looking at the default is pretty + * hard, because that's part of a structure within each translator and + * there's no dlopen interface to get at it, so we assume a mismatch. + * If the user really wants them to match (and for their bricks to be + * multiplexed, they can always reset the option). + */ + if (!value2) { + gf_log(THIS->name, GF_LOG_DEBUG, "missing option %s", key); + return -1; + } + + min_len = MIN(value1->len, value2->len); + if (strncmp(value1->data, value2->data, min_len) != 0) { + gf_log(THIS->name, GF_LOG_DEBUG, "option mismatch, %s, %s != %s", key, + value1->data, value2->data); + return -1; + } + + return 0; +} + +int +glusterd_brickprocess_delete(glusterd_brick_proc_t *brick_proc) +{ + cds_list_del_init(&brick_proc->brick_proc_list); + cds_list_del_init(&brick_proc->bricks); + + GF_FREE(brick_proc); + + return 0; +} + +int +glusterd_brick_process_remove_brick(glusterd_brickinfo_t *brickinfo, + int *last_brick) +{ + int ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + glusterd_brick_proc_t *brick_proc = NULL; + + this = THIS; + GF_VALIDATE_OR_GOTO("glusterd", this, out); + + priv = this->private; + GF_VALIDATE_OR_GOTO(this->name, priv, out); + GF_VALIDATE_OR_GOTO(this->name, brickinfo, out); + + brick_proc = brickinfo->brick_proc; + if (!brick_proc) { + if (brickinfo->status != GF_BRICK_STARTED) { + /* this function will be called from gluster_pmap_signout and + * glusterd_volume_stop_glusterfs. So it is possible to have + * brick_proc set as null. + */ + ret = 0; + } + goto out; + } + + GF_VALIDATE_OR_GOTO(this->name, (brick_proc->brick_count > 0), out); + + cds_list_del_init(&brickinfo->mux_bricks); + brick_proc->brick_count--; + + /* If all bricks have been removed, delete the brick process */ + if (brick_proc->brick_count == 0) { + if (last_brick != NULL) + *last_brick = 1; + ret = glusterd_brickprocess_delete(brick_proc); + if (ret) + goto out; + } + brickinfo->brick_proc = NULL; + ret = 0; +out: + return ret; +} + +int +glusterd_brick_process_add_brick(glusterd_brickinfo_t *brickinfo, + glusterd_brickinfo_t *parent_brickinfo) +{ + int ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + glusterd_brick_proc_t *brick_proc = NULL; + + this = THIS; + GF_VALIDATE_OR_GOTO("glusterd", this, out); + + priv = this->private; + GF_VALIDATE_OR_GOTO(this->name, priv, out); + GF_VALIDATE_OR_GOTO(this->name, brickinfo, out); + + if (!parent_brickinfo) { + ret = glusterd_brick_proc_for_port(brickinfo->port, &brick_proc); + if (ret) { + ret = glusterd_brickprocess_new(&brick_proc); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICKPROC_NEW_FAILED, + "Failed to create " + "new brick process instance"); + goto out; + } + + brick_proc->port = brickinfo->port; + + cds_list_add_tail(&brick_proc->brick_proc_list, &priv->brick_procs); + } + } else { + ret = 0; + brick_proc = parent_brickinfo->brick_proc; + } + + cds_list_add_tail(&brickinfo->mux_bricks, &brick_proc->bricks); + brickinfo->brick_proc = brick_proc; + brick_proc->brick_count++; +out: + return ret; +} + +/* ret = 0 only when you get a brick process associated with the port + * ret = -1 otherwise + */ +int +glusterd_brick_proc_for_port(int port, glusterd_brick_proc_t **brickprocess) +{ + int ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + glusterd_brick_proc_t *brick_proc = NULL; + + this = THIS; + GF_VALIDATE_OR_GOTO("glusterd", this, out); + + priv = this->private; + GF_VALIDATE_OR_GOTO(this->name, priv, out); + + cds_list_for_each_entry(brick_proc, &priv->brick_procs, brick_proc_list) + { + if (brick_proc->port == port) { + *brickprocess = brick_proc; + ret = 0; + break; + } + } +out: + return ret; +} + +int32_t +glusterd_volume_stop_glusterfs(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, + gf_boolean_t del_brick) +{ + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + int ret = -1; + char *op_errstr = NULL; + char pidfile[PATH_MAX] = ""; + int last_brick = -1; + + GF_ASSERT(volinfo); + GF_ASSERT(brickinfo); + + this = THIS; + GF_ASSERT(this); + + conf = this->private; + GF_VALIDATE_OR_GOTO(this->name, conf, out); + + ret = glusterd_brick_process_remove_brick(brickinfo, &last_brick); + if (ret) { + gf_msg_debug(this->name, 0, + "Couldn't remove brick from" + " brick process"); + goto out; + } + + if (del_brick) + cds_list_del_init(&brickinfo->brick_list); + + if (GLUSTERD_STATUS_STARTED == volinfo->status) { + /* + * In a post-multiplexing world, even if we're not actually + * doing any multiplexing, just dropping the RPC connection + * isn't enough. There might be many such connections during + * the brick daemon's lifetime, even if we only consider the + * management RPC port (because tests etc. might be manually + * attaching and detaching bricks). Therefore, we have to send + * an actual signal instead. + */ + if (is_brick_mx_enabled() && last_brick != 1) { + ret = send_attach_req(this, brickinfo->rpc, brickinfo->path, NULL, + NULL, GLUSTERD_BRICK_TERMINATE); + if (ret && brickinfo->status == GF_BRICK_STARTED) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICK_STOP_FAIL, + "Failed to send" + " detach request for brick %s", + brickinfo->path); + goto out; + } + gf_log(this->name, GF_LOG_INFO, + "Detach request for " + "brick %s:%s is sent successfully", + brickinfo->hostname, brickinfo->path); + + } else { + gf_msg_debug(this->name, 0, + "About to stop glusterfsd" + " for brick %s:%s", + brickinfo->hostname, brickinfo->path); + ret = glusterd_brick_terminate(volinfo, brickinfo, NULL, 0, + &op_errstr); + if (ret && brickinfo->status == GF_BRICK_STARTED) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICK_STOP_FAIL, + "Failed to kill" + " the brick %s", + brickinfo->path); + goto out; + } + + if (op_errstr) { + GF_FREE(op_errstr); + } + if (is_brick_mx_enabled()) { + /* In case of brick multiplexing we need to make + * sure the port is cleaned up from here as the + * RPC connection may not have been originated + * for the same brick instance + */ + pmap_registry_remove(THIS, brickinfo->port, brickinfo->path, + GF_PMAP_PORT_BRICKSERVER, NULL, _gf_true); + } + } + + (void)glusterd_brick_disconnect(brickinfo); + ret = 0; + } + + GLUSTERD_GET_BRICK_PIDFILE(pidfile, volinfo, brickinfo, conf); + gf_msg_debug(this->name, 0, "Unlinking pidfile %s", pidfile); + (void)sys_unlink(pidfile); + + brickinfo->status = GF_BRICK_STOPPED; + brickinfo->start_triggered = _gf_false; + brickinfo->brick_proc = NULL; + if (del_brick) + glusterd_delete_brick(volinfo, brickinfo); +out: + return ret; +} + +/* Free LINE[0..N-1] and then the LINE buffer. */ +static void +free_lines(char **line, size_t n) +{ + size_t i; + for (i = 0; i < n; i++) + GF_FREE(line[i]); + GF_FREE(line); +} + +static char ** +glusterd_readin_file(const char *filepath, int *line_count) +{ + int ret = -1; + int n = 8; + int counter = 0; + char buffer[PATH_MAX + 256] = ""; + char **lines = NULL; + FILE *fp = NULL; + void *p; + + fp = fopen(filepath, "r"); + if (!fp) + goto out; + + lines = GF_CALLOC(1, n * sizeof(*lines), gf_gld_mt_charptr); + if (!lines) + goto out; + + for (counter = 0; fgets(buffer, sizeof(buffer), fp); counter++) { + if (counter == n - 1) { + n *= 2; + p = GF_REALLOC(lines, n * sizeof(char *)); + if (!p) { + free_lines(lines, n / 2); + lines = NULL; + goto out; + } + lines = p; + } + + lines[counter] = gf_strdup(buffer); + } + + lines[counter] = NULL; + /* Reduce allocation to minimal size. */ + p = GF_REALLOC(lines, (counter + 1) * sizeof(char *)); + if (!p) { + /* coverity[TAINTED_SCALAR] */ + free_lines(lines, counter); + lines = NULL; + goto out; + } + lines = p; + + *line_count = counter; + ret = 0; + +out: + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, errno, GD_MSG_READIN_FILE_FAILED, "%s", + strerror(errno)); + if (fp) + fclose(fp); + + return lines; +} + +int +glusterd_compare_lines(const void *a, const void *b) +{ + return strcmp(*(char *const *)a, *(char *const *)b); +} + +static int +glusterd_sort_and_redirect(const char *src_filepath, int dest_fd) +{ + int ret = -1; + int line_count = 0; + int counter = 0; + char **lines = NULL; + + if (!src_filepath || dest_fd < 0) + goto out; + + lines = glusterd_readin_file(src_filepath, &line_count); + if (!lines) + goto out; + + qsort(lines, line_count, sizeof(*lines), glusterd_compare_lines); + + for (counter = 0; lines[counter]; counter++) { + ret = sys_write(dest_fd, lines[counter], strlen(lines[counter])); + if (ret < 0) + goto out; + + GF_FREE(lines[counter]); + } + + ret = 0; +out: + GF_FREE(lines); + + return ret; +} + +static int +glusterd_volume_compute_cksum(glusterd_volinfo_t *volinfo, char *cksum_path, + char *filepath, gf_boolean_t is_quota_conf, + uint32_t *cs) +{ + int32_t ret = -1; + uint32_t cksum = 0; + int fd = -1; + int sort_fd = 0; + char sort_filepath[PATH_MAX] = ""; + char buf[32]; + gf_boolean_t unlink_sortfile = _gf_false; + glusterd_conf_t *priv = THIS->private; + xlator_t *this = THIS; + mode_t orig_umask = 0; + + GF_ASSERT(volinfo); + GF_ASSERT(priv); + + fd = open(cksum_path, O_RDWR | O_APPEND | O_CREAT | O_TRUNC, 0600); + if (-1 == fd) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Unable to open %s," + " errno: %d", + cksum_path, errno); + ret = -1; + goto out; + } + + if (!is_quota_conf) { + snprintf(sort_filepath, sizeof(sort_filepath), "/tmp/%s.XXXXXX", + volinfo->volname); + + orig_umask = umask(S_IRWXG | S_IRWXO); + sort_fd = mkstemp(sort_filepath); + umask(orig_umask); + if (-1 == sort_fd) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Could not generate " + "temp file, reason: %s for volume: %s", + strerror(errno), volinfo->volname); + goto out; + } else { + unlink_sortfile = _gf_true; + } + + /* sort the info file, result in sort_filepath */ + + ret = glusterd_sort_and_redirect(filepath, sort_fd); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_FILE_OP_FAILED, + "sorting info file " + "failed"); + goto out; + } + + ret = sys_close(sort_fd); + if (ret) + goto out; + + ret = get_checksum_for_path(sort_filepath, &cksum, priv->op_version); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_CKSUM_GET_FAIL, + "unable to get " + "checksum for path: %s", + sort_filepath); + goto out; + } + + ret = snprintf(buf, sizeof(buf), "info=%u\n", cksum); + ret = sys_write(fd, buf, ret); + if (ret <= 0) { + ret = -1; + goto out; + } + } else if (priv->op_version < GD_OP_VERSION_7_0) { + ret = get_checksum_for_path(filepath, &cksum, priv->op_version); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_CKSUM_GET_FAIL, + "unable to get " + "checksum for path: %s", + filepath); + goto out; + } + } + + ret = get_checksum_for_file(fd, &cksum, priv->op_version); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_CKSUM_GET_FAIL, + "unable to get checksum for path: %s", filepath); + goto out; + } + + *cs = cksum; + +out: + if (fd != -1) + sys_close(fd); + if (unlink_sortfile) + sys_unlink(sort_filepath); + gf_msg_debug(this->name, 0, "Returning with %d", ret); + + return ret; +} + +int +glusterd_compute_cksum(glusterd_volinfo_t *volinfo, gf_boolean_t is_quota_conf) +{ + int ret = -1; + uint32_t cs = 0; + char cksum_path[PATH_MAX] = ""; + char path[PATH_MAX] = ""; + char filepath[PATH_MAX] = ""; + glusterd_conf_t *conf = NULL; + xlator_t *this = NULL; + int32_t len1 = 0; + int32_t len2 = 0; + + this = THIS; + GF_ASSERT(this); + conf = this->private; + GF_ASSERT(conf); + + GLUSTERD_GET_VOLUME_DIR(path, volinfo, conf); + + if (is_quota_conf) { + len1 = snprintf(cksum_path, sizeof(cksum_path), "%s/%s", path, + GLUSTERD_VOL_QUOTA_CKSUM_FILE); + len2 = snprintf(filepath, sizeof(filepath), "%s/%s", path, + GLUSTERD_VOLUME_QUOTA_CONFIG); + } else { + len1 = snprintf(cksum_path, sizeof(cksum_path), "%s/%s", path, + GLUSTERD_CKSUM_FILE); + len2 = snprintf(filepath, sizeof(filepath), "%s/%s", path, + GLUSTERD_VOLUME_INFO_FILE); + } + if ((len1 < 0) || (len2 < 0) || (len1 >= sizeof(cksum_path)) || + (len2 >= sizeof(filepath))) { + goto out; + } + + ret = glusterd_volume_compute_cksum(volinfo, cksum_path, filepath, + is_quota_conf, &cs); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_CKSUM_COMPUTE_FAIL, + "Failed to compute checksum " + "for volume %s", + volinfo->volname); + goto out; + } + + if (is_quota_conf) + volinfo->quota_conf_cksum = cs; + else + volinfo->cksum = cs; + + ret = 0; +out: + return ret; +} + +static int +_add_dict_to_prdict(dict_t *this, char *key, data_t *value, void *data) +{ + glusterd_dict_ctx_t *ctx = data; + char optkey[64]; /* optkey are usually quite small */ + int ret = -1; + + ret = snprintf(optkey, sizeof(optkey), "%s.%s%d", ctx->prefix, + ctx->key_name, ctx->opt_count); + if (ret < 0 || ret >= sizeof(optkey)) + return -1; + ret = dict_set_strn(ctx->dict, optkey, ret, key); + if (ret) + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "option add for %s%d %s", ctx->key_name, ctx->opt_count, key); + ret = snprintf(optkey, sizeof(optkey), "%s.%s%d", ctx->prefix, + ctx->val_name, ctx->opt_count); + if (ret < 0 || ret >= sizeof(optkey)) + return -1; + ret = dict_set_strn(ctx->dict, optkey, ret, value->data); + if (ret) + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "option add for %s%d %s", ctx->val_name, ctx->opt_count, + value->data); + ctx->opt_count++; + + return ret; +} + +int32_t +glusterd_add_bricks_hname_path_to_dict(dict_t *dict, + glusterd_volinfo_t *volinfo) +{ + glusterd_brickinfo_t *brickinfo = NULL; + int ret = 0; + char key[64] = ""; + int index = 0; + + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + ret = snprintf(key, sizeof(key), "%d-hostname", index); + ret = dict_set_strn(dict, key, ret, brickinfo->hostname); + if (ret) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + ret = snprintf(key, sizeof(key), "%d-path", index); + ret = dict_set_strn(dict, key, ret, brickinfo->path); + if (ret) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + index++; + } +out: + return ret; +} + +/* The prefix represents the type of volume to be added. + * It will be "volume" for normal volumes, and snap# like + * snap1, snap2, for snapshot volumes + */ +int32_t +glusterd_add_volume_to_dict(glusterd_volinfo_t *volinfo, dict_t *dict, + int32_t count, char *prefix) +{ + int32_t ret = -1; + char pfx[32] = ""; /* prefix should be quite small */ + char key[64] = ""; + int keylen; + glusterd_brickinfo_t *brickinfo = NULL; + glusterd_brickinfo_t *ta_brickinfo = NULL; + int32_t i = 1; + char *volume_id_str = NULL; + char *str = NULL; + glusterd_dict_ctx_t ctx = {0}; + char *rebalance_id_str = NULL; + char *rb_id_str = NULL; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + GF_ASSERT(dict); + GF_ASSERT(volinfo); + GF_ASSERT(prefix); + + ret = snprintf(pfx, sizeof(pfx), "%s%d", prefix, count); + if (ret < 0 || ret >= sizeof(pfx)) { + ret = -1; + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.name", pfx); + ret = dict_set_strn(dict, key, keylen, volinfo->volname); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.type", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->type); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.brick_count", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->brick_count); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.version", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->version); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.status", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->status); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.sub_count", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->sub_count); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.subvol_count", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->subvol_count); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.stripe_count", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->stripe_count); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.replica_count", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->replica_count); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.arbiter_count", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->arbiter_count); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.thin_arbiter_count", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->thin_arbiter_count); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.disperse_count", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->disperse_count); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.redundancy_count", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->redundancy_count); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.dist_count", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->dist_leaf_count); + if (ret) + goto out; + + snprintf(key, sizeof(key), "%s.ckusm", pfx); + ret = dict_set_int64(dict, key, volinfo->cksum); + if (ret) + goto out; + + snprintf(key, sizeof(key), "%s.transport_type", pfx); + ret = dict_set_uint32(dict, key, volinfo->transport_type); + if (ret) + goto out; + + snprintf(key, sizeof(key), "%s.stage_deleted", pfx); + ret = dict_set_uint32(dict, key, (uint32_t)volinfo->stage_deleted); + if (ret) + goto out; + + ret = gd_add_vol_snap_details_to_dict(dict, pfx, volinfo); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "vol snap details", NULL); + goto out; + } + + volume_id_str = gf_strdup(uuid_utoa(volinfo->volume_id)); + if (!volume_id_str) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_STRDUP_FAILED, + "volume id=%s", volinfo->volume_id, NULL); + ret = -1; + goto out; + } + keylen = snprintf(key, sizeof(key), "%s.volume_id", pfx); + ret = dict_set_dynstrn(dict, key, keylen, volume_id_str); + if (ret) + goto out; + volume_id_str = NULL; + + keylen = snprintf(key, sizeof(key), "%s.username", pfx); + str = glusterd_auth_get_username(volinfo); + if (str) { + ret = dict_set_dynstrn(dict, key, keylen, gf_strdup(str)); + if (ret) + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.password", pfx); + str = glusterd_auth_get_password(volinfo); + if (str) { + ret = dict_set_dynstrn(dict, key, keylen, gf_strdup(str)); + if (ret) + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.rebalance", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->rebal.defrag_cmd); + if (ret) + goto out; + + rebalance_id_str = gf_strdup(uuid_utoa(volinfo->rebal.rebalance_id)); + if (!rebalance_id_str) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_STRDUP_FAILED, + "rebalance_id=%s", volinfo->rebal.rebalance_id, NULL); + ret = -1; + goto out; + } + keylen = snprintf(key, sizeof(key), "%s.rebalance-id", pfx); + ret = dict_set_dynstrn(dict, key, keylen, rebalance_id_str); + if (ret) + goto out; + rebalance_id_str = NULL; + + snprintf(key, sizeof(key), "%s.rebalance-op", pfx); + ret = dict_set_uint32(dict, key, volinfo->rebal.op); + if (ret) + goto out; + + if (volinfo->rebal.dict) { + ctx.dict = dict; + ctx.prefix = pfx; + ctx.opt_count = 1; + ctx.key_name = "rebal-dict-key"; + ctx.val_name = "rebal-dict-value"; + + dict_foreach(volinfo->rebal.dict, _add_dict_to_prdict, &ctx); + ctx.opt_count--; + keylen = snprintf(key, sizeof(key), "volume%d.rebal-dict-count", count); + ret = dict_set_int32n(dict, key, keylen, ctx.opt_count); + if (ret) + goto out; + } + + ctx.dict = dict; + ctx.prefix = pfx; + ctx.opt_count = 1; + ctx.key_name = "key"; + ctx.val_name = "value"; + GF_ASSERT(volinfo->dict); + + dict_foreach(volinfo->dict, _add_dict_to_prdict, &ctx); + ctx.opt_count--; + keylen = snprintf(key, sizeof(key), "%s.opt-count", pfx); + ret = dict_set_int32n(dict, key, keylen, ctx.opt_count); + if (ret) + goto out; + + ctx.dict = dict; + ctx.prefix = pfx; + ctx.opt_count = 1; + ctx.key_name = "slave-num"; + ctx.val_name = "slave-val"; + GF_ASSERT(volinfo->gsync_slaves); + + dict_foreach(volinfo->gsync_slaves, _add_dict_to_prdict, &ctx); + ctx.opt_count--; + + keylen = snprintf(key, sizeof(key), "%s.gsync-count", pfx); + ret = dict_set_int32n(dict, key, keylen, ctx.opt_count); + if (ret) + goto out; + + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + keylen = snprintf(key, sizeof(key), "%s.brick%d.hostname", pfx, i); + ret = dict_set_strn(dict, key, keylen, brickinfo->hostname); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.brick%d.path", pfx, i); + ret = dict_set_strn(dict, key, keylen, brickinfo->path); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.brick%d.decommissioned", pfx, + i); + ret = dict_set_int32n(dict, key, keylen, brickinfo->decommissioned); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.brick%d.brick_id", pfx, i); + ret = dict_set_strn(dict, key, keylen, brickinfo->brick_id); + if (ret) + goto out; + + snprintf(key, sizeof(key), "%s.brick%d.uuid", pfx, i); + ret = dict_set_dynstr_with_alloc(dict, key, uuid_utoa(brickinfo->uuid)); + if (ret) + goto out; + + snprintf(key, sizeof(key), "%s.brick%d", pfx, i); + ret = gd_add_brick_snap_details_to_dict(dict, key, brickinfo); + if (ret) + goto out; + + i++; + } + + i = 1; + if (volinfo->thin_arbiter_count == 1) { + cds_list_for_each_entry(ta_brickinfo, &volinfo->ta_bricks, brick_list) + { + keylen = snprintf(key, sizeof(key), "%s.ta-brick%d.hostname", pfx, + i); + ret = dict_set_strn(dict, key, keylen, ta_brickinfo->hostname); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.ta-brick%d.path", pfx, i); + ret = dict_set_strn(dict, key, keylen, ta_brickinfo->path); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.ta-brick%d.decommissioned", + pfx, i); + ret = dict_set_int32n(dict, key, keylen, + ta_brickinfo->decommissioned); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.ta-brick%d.brick_id", pfx, + i); + ret = dict_set_strn(dict, key, keylen, ta_brickinfo->brick_id); + if (ret) + goto out; + + snprintf(key, sizeof(key), "%s.ta-brick%d.uuid", pfx, i); + ret = dict_set_dynstr_with_alloc(dict, key, + uuid_utoa(ta_brickinfo->uuid)); + if (ret) + goto out; + + i++; + } + } + + /* Add volume op-versions to dict. This prevents volume inconsistencies + * in the cluster + */ + keylen = snprintf(key, sizeof(key), "%s.op-version", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->op_version); + if (ret) + goto out; + keylen = snprintf(key, sizeof(key), "%s.client-op-version", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->client_op_version); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.quota-xattr-version", pfx); + ret = dict_set_int32n(dict, key, keylen, volinfo->quota_xattr_version); +out: + GF_FREE(volume_id_str); + GF_FREE(rebalance_id_str); + GF_FREE(rb_id_str); + + if (key[0] != '\0' && ret != 0) + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + gf_msg_debug(this->name, 0, "Returning with %d", ret); + return ret; +} + +/* The prefix represents the type of volume to be added. + * It will be "volume" for normal volumes, and snap# like + * snap1, snap2, for snapshot volumes + */ +int +glusterd_vol_add_quota_conf_to_dict(glusterd_volinfo_t *volinfo, dict_t *load, + int vol_idx, char *prefix) +{ + int fd = -1; + unsigned char buf[16] = ""; + char key[64]; + char key_prefix[32]; + int gfid_idx = 0; + int ret = -1; + xlator_t *this = NULL; + char type = 0; + float version = 0.0f; + + this = THIS; + GF_ASSERT(this); + GF_ASSERT(prefix); + + ret = glusterd_store_create_quota_conf_sh_on_absence(volinfo); + if (ret) + goto out; + + fd = open(volinfo->quota_conf_shandle->path, O_RDONLY); + if (fd == -1) { + ret = -1; + goto out; + } + + ret = quota_conf_read_version(fd, &version); + if (ret) + goto out; + + ret = snprintf(key_prefix, sizeof(key_prefix), "%s%d", prefix, vol_idx); + if (ret < 0 || ret >= sizeof(key_prefix)) { + ret = -1; + goto out; + } + for (gfid_idx = 0;; gfid_idx++) { + ret = quota_conf_read_gfid(fd, buf, &type, version); + if (ret == 0) { + break; + } else if (ret < 0) { + gf_msg(this->name, GF_LOG_CRITICAL, 0, GD_MSG_QUOTA_CONF_CORRUPT, + "Quota " + "configuration store may be corrupt."); + goto out; + } + + snprintf(key, sizeof(key) - 1, "%s.gfid%d", key_prefix, gfid_idx); + ret = dict_set_dynstr_with_alloc(load, key, uuid_utoa(buf)); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + snprintf(key, sizeof(key) - 1, "%s.gfid-type%d", key_prefix, gfid_idx); + ret = dict_set_int8(load, key, type); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + } + + ret = snprintf(key, sizeof(key), "%s.gfid-count", key_prefix); + ret = dict_set_int32n(load, key, ret, gfid_idx); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + snprintf(key, sizeof(key), "%s.quota-cksum", key_prefix); + ret = dict_set_uint32(load, key, volinfo->quota_conf_cksum); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + snprintf(key, sizeof(key), "%s.quota-version", key_prefix); + ret = dict_set_uint32(load, key, volinfo->quota_conf_version); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + ret = 0; +out: + if (fd != -1) + sys_close(fd); + return ret; +} + +void * +glusterd_add_bulk_volumes_create_thread(void *data) +{ + int32_t ret = -1; + glusterd_conf_t *priv = NULL; + glusterd_volinfo_t *volinfo = NULL; + int32_t count = 0; + xlator_t *this = NULL; + glusterd_add_dict_args_t *arg = NULL; + dict_t *dict = NULL; + int start = 0; + int end = 0; + + GF_ASSERT(data); + + arg = data; + dict = arg->voldict; + start = arg->start; + end = arg->end; + this = arg->this; + THIS = arg->this; + priv = this->private; + GF_ASSERT(priv); + + cds_list_for_each_entry(volinfo, &priv->volumes, vol_list) + { + count++; + + /* Skip volumes if index count is less than start + index to handle volume for specific thread + */ + if (count < start) + continue; + + /* No need to process volume if index count is greater + than end index + */ + if (count > end) + break; + + ret = glusterd_add_volume_to_dict(volinfo, dict, count, "volume"); + if (ret) + goto out; + if (!dict_get_sizen(volinfo->dict, VKEY_FEATURES_QUOTA)) + continue; + ret = glusterd_vol_add_quota_conf_to_dict(volinfo, dict, count, + "volume"); + if (ret) + goto out; + } + +out: + GF_ATOMIC_DEC(priv->thread_count); + free(arg); + return NULL; +} + +int +glusterd_dict_searialize(dict_t *dict_arr[], int count, int totcount, char *buf) +{ + int i = 0; + int32_t keylen = 0; + int64_t netword = 0; + data_pair_t *pair = NULL; + int dict_count = 0; + int ret = 0; + + netword = hton32(totcount); + memcpy(buf, &netword, sizeof(netword)); + buf += DICT_HDR_LEN; + + for (i = 0; i < count; i++) { + if (dict_arr[i]) { + dict_count = dict_arr[i]->count; + pair = dict_arr[i]->members_list; + while (dict_count) { + if (!pair) { + gf_msg("glusterd", GF_LOG_ERROR, 0, + LG_MSG_PAIRS_LESS_THAN_COUNT, + "less than count data pairs found!"); + ret = -1; + goto out; + } + + if (!pair->key) { + gf_msg("glusterd", GF_LOG_ERROR, 0, LG_MSG_NULL_PTR, + "pair->key is null!"); + ret = -1; + goto out; + } + + keylen = strlen(pair->key); + netword = hton32(keylen); + memcpy(buf, &netword, sizeof(netword)); + buf += DICT_DATA_HDR_KEY_LEN; + if (!pair->value) { + gf_msg("glusterd", GF_LOG_ERROR, 0, LG_MSG_NULL_PTR, + "pair->value is null!"); + ret = -1; + goto out; + } + + netword = hton32(pair->value->len); + memcpy(buf, &netword, sizeof(netword)); + buf += DICT_DATA_HDR_VAL_LEN; + + memcpy(buf, pair->key, keylen); + buf += keylen; + *buf++ = '\0'; + + if (pair->value->data) { + memcpy(buf, pair->value->data, pair->value->len); + buf += pair->value->len; + } + + pair = pair->next; + dict_count--; + } + } + } + +out: + for (i = 0; i < count; i++) { + if (dict_arr[i]) + dict_unref(dict_arr[i]); + } + return ret; +} + +int +glusterd_dict_arr_serialize(dict_t *dict_arr[], int count, char **buf, + u_int *length) +{ + ssize_t len = 0; + int i = 0; + int totcount = 0; + int ret = 0; + + for (i = 0; i < count; i++) { + if (dict_arr[i]) { + len += dict_serialized_length_lk(dict_arr[i]); + totcount += dict_arr[i]->count; + } + } + + // Subtract HDR_LEN except one dictionary + len = len - ((count - 1) * DICT_HDR_LEN); + + *buf = GF_MALLOC(len, gf_common_mt_char); + if (*buf == NULL) { + ret = -ENOMEM; + goto out; + } + + if (length != NULL) { + *length = len; + } + + ret = glusterd_dict_searialize(dict_arr, count, totcount, *buf); + +out: + return ret; +} + +int32_t +glusterd_add_volumes_to_export_dict(dict_t *peer_data, char **buf, + u_int *length) +{ + int32_t ret = -1; + dict_t *dict_arr[128] = { + 0, + }; + glusterd_conf_t *priv = NULL; + glusterd_volinfo_t *volinfo = NULL; + int32_t count = 0; + glusterd_dict_ctx_t ctx = {0}; + xlator_t *this = NULL; + int totthread = 0; + int volcnt = 0; + int start = 1; + int endindex = 0; + int vol_per_thread_limit = 0; + glusterd_add_dict_args_t *arg = NULL; + pthread_t th_id = { + 0, + }; + int th_ret = 0; + int i = 0; + + this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_ASSERT(priv); + + /* Count the total number of volumes */ + cds_list_for_each_entry(volinfo, &priv->volumes, vol_list) volcnt++; + + get_gd_vol_thread_limit(&vol_per_thread_limit); + + if ((vol_per_thread_limit == 1) || (vol_per_thread_limit == 0) || + (vol_per_thread_limit > 100)) { + totthread = 0; + } else { + totthread = volcnt / vol_per_thread_limit; + if (totthread) { + endindex = volcnt % vol_per_thread_limit; + if (endindex) + totthread++; + } + } + + if (totthread == 0) { + cds_list_for_each_entry(volinfo, &priv->volumes, vol_list) + { + count++; + ret = glusterd_add_volume_to_dict(volinfo, peer_data, count, + "volume"); + if (ret) + goto out; + + if (!dict_get_sizen(volinfo->dict, VKEY_FEATURES_QUOTA)) + continue; + + ret = glusterd_vol_add_quota_conf_to_dict(volinfo, peer_data, count, + "volume"); + if (ret) + goto out; + } + } else { + for (i = 0; i < totthread; i++) { + arg = calloc(1, sizeof(*arg)); + dict_arr[i] = dict_new(); + arg->this = this; + arg->voldict = dict_arr[i]; + arg->start = start; + if ((i + 1) != totthread) { + arg->end = ((i + 1) * vol_per_thread_limit); + } else { + arg->end = (((i + 1) * vol_per_thread_limit) + endindex); + } + th_ret = gf_thread_create_detached( + &th_id, glusterd_add_bulk_volumes_create_thread, arg, + "bulkvoldict"); + if (th_ret) { + gf_log(this->name, GF_LOG_ERROR, + "glusterd_add_bulk_volume %s" + " thread creation failed", + "bulkvoldict"); + free(arg); + goto out; + } + + start = start + vol_per_thread_limit; + GF_ATOMIC_INC(priv->thread_count); + gf_log(this->name, GF_LOG_INFO, + "Create thread %d to populate dict data for volume" + " start index is %d end index is %d", + (i + 1), arg->start, arg->end); + } + while (GF_ATOMIC_GET(priv->thread_count)) { + sleep(1); + } + + gf_log(this->name, GF_LOG_INFO, + "Finished dictionary population in all threads"); + } + + ret = dict_set_int32n(peer_data, "count", SLEN("count"), volcnt); + if (ret) + goto out; + + ctx.dict = peer_data; + ctx.prefix = "global"; + ctx.opt_count = 1; + ctx.key_name = "key"; + ctx.val_name = "val"; + dict_foreach(priv->opts, _add_dict_to_prdict, &ctx); + ctx.opt_count--; + ret = dict_set_int32n(peer_data, "global-opt-count", + SLEN("global-opt-count"), ctx.opt_count); + if (ret) + goto out; + + if (totthread) { + gf_log(this->name, GF_LOG_INFO, + "Merged multiple dictionaries into a single one"); + dict_arr[totthread++] = dict_ref(peer_data); + ret = glusterd_dict_arr_serialize(dict_arr, totthread, buf, length); + gf_log(this->name, GF_LOG_INFO, "Serialize dictionary data returned %d", + ret); + } + +out: + + gf_msg_trace(this->name, 0, "Returning %d", ret); + return ret; +} + +static int32_t +glusterd_compare_friend_volume(dict_t *peer_data, int32_t count, + int32_t *status, char *hostname) +{ + int32_t ret = -1; + char key[64] = ""; + char key_prefix[32]; + int keylen; + glusterd_volinfo_t *volinfo = NULL; + char *volname = NULL; + uint32_t cksum = 0; + uint32_t quota_cksum = 0; + uint32_t quota_version = 0; + uint32_t stage_deleted = 0; + int32_t version = 0; + xlator_t *this = NULL; + + GF_ASSERT(peer_data); + GF_ASSERT(status); + + this = THIS; + GF_ASSERT(this); + + snprintf(key_prefix, sizeof(key_prefix), "volume%d", count); + keylen = snprintf(key, sizeof(key), "%s.name", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &volname); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + ret = glusterd_volinfo_find(volname, &volinfo); + if (ret) { + snprintf(key, sizeof(key), "%s.stage_deleted", key_prefix); + ret = dict_get_uint32(peer_data, key, &stage_deleted); + /* stage_deleted = 1 means the volume is still in the process of + * deleting a volume, so we shouldn't be trying to create a + * fresh volume here which would lead to a stale entry + */ + if (!ret && stage_deleted == 0) + *status = GLUSTERD_VOL_COMP_UPDATE_REQ; + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.version", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &version); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + if (version > volinfo->version) { + // Mismatch detected + gf_msg(this->name, GF_LOG_INFO, 0, GD_MSG_VOL_VERS_MISMATCH, + "Version of volume %s differ. local version = %d, " + "remote version = %d on peer %s", + volinfo->volname, volinfo->version, version, hostname); + GF_ATOMIC_INIT(volinfo->volpeerupdate, 1); + *status = GLUSTERD_VOL_COMP_UPDATE_REQ; + goto out; + } else if (version < volinfo->version) { + *status = GLUSTERD_VOL_COMP_SCS; + goto out; + } + + // Now, versions are same, compare cksums. + // + snprintf(key, sizeof(key), "%s.ckusm", key_prefix); + ret = dict_get_uint32(peer_data, key, &cksum); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + if (cksum != volinfo->cksum) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_CKSUM_VERS_MISMATCH, + "Version of Cksums %s differ. local cksum = %u, remote " + "cksum = %u on peer %s", + volinfo->volname, volinfo->cksum, cksum, hostname); + *status = GLUSTERD_VOL_COMP_RJT; + goto out; + } + + if (!dict_get_sizen(volinfo->dict, VKEY_FEATURES_QUOTA)) + goto skip_quota; + + snprintf(key, sizeof(key), "%s.quota-version", key_prefix); + ret = dict_get_uint32(peer_data, key, "a_version); + if (ret) { + gf_msg_debug(this->name, 0, + "quota-version key absent for" + " volume %s in peer %s's response", + volinfo->volname, hostname); + } else { + if (quota_version > volinfo->quota_conf_version) { + // Mismatch detected + gf_msg(this->name, GF_LOG_INFO, 0, + GD_MSG_QUOTA_CONFIG_VERS_MISMATCH, + "Quota configuration versions of volume %s " + "differ. local version = %d, remote version = " + "%d on peer %s", + volinfo->volname, volinfo->quota_conf_version, quota_version, + hostname); + *status = GLUSTERD_VOL_COMP_UPDATE_REQ; + goto out; + } else if (quota_version < volinfo->quota_conf_version) { + *status = GLUSTERD_VOL_COMP_SCS; + goto out; + } + } + + // Now, versions are same, compare cksums. + // + snprintf(key, sizeof(key), "%s.quota-cksum", key_prefix); + ret = dict_get_uint32(peer_data, key, "a_cksum); + if (ret) { + gf_msg_debug(this->name, 0, + "quota checksum absent for " + "volume %s in peer %s's response", + volinfo->volname, hostname); + } else { + if (quota_cksum != volinfo->quota_conf_cksum) { + gf_msg(this->name, GF_LOG_ERROR, 0, + GD_MSG_QUOTA_CONFIG_CKSUM_MISMATCH, + "Cksums of " + "quota configuration of volume %s differ. local" + " cksum = %u, remote cksum = %u on peer %s", + volinfo->volname, volinfo->quota_conf_cksum, quota_cksum, + hostname); + *status = GLUSTERD_VOL_COMP_RJT; + goto out; + } + } + +skip_quota: + *status = GLUSTERD_VOL_COMP_SCS; + +out: + keylen = snprintf(key, sizeof(key), "%s.update", key_prefix); + + if (*status == GLUSTERD_VOL_COMP_UPDATE_REQ) { + ret = dict_set_int32n(peer_data, key, keylen, 1); + } else { + ret = dict_set_int32n(peer_data, key, keylen, 0); + } + if (*status == GLUSTERD_VOL_COMP_RJT) { + gf_event(EVENT_COMPARE_FRIEND_VOLUME_FAILED, "volume=%s", + volinfo->volname); + } + gf_msg_debug(this->name, 0, "Returning with ret: %d, status: %d", ret, + *status); + return ret; +} + +static int32_t +import_prdict_dict(dict_t *peer_data, dict_t *dst_dict, char *key_prefix, + char *value_prefix, int opt_count, char *prefix) +{ + char key[512] = ""; + int keylen; + int32_t ret = 0; + int i = 1; + char *opt_key = NULL; + char *opt_val = NULL; + char *dup_opt_val = NULL; + char msg[2048] = ""; + + while (i <= opt_count) { + keylen = snprintf(key, sizeof(key), "%s.%s%d", prefix, key_prefix, i); + ret = dict_get_strn(peer_data, key, keylen, &opt_key); + if (ret) { + snprintf(msg, sizeof(msg), + "Volume dict key not " + "specified"); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.%s%d", prefix, value_prefix, i); + ret = dict_get_strn(peer_data, key, keylen, &opt_val); + if (ret) { + snprintf(msg, sizeof(msg), + "Volume dict value not " + "specified"); + goto out; + } + dup_opt_val = gf_strdup(opt_val); + if (!dup_opt_val) { + ret = -1; + goto out; + } + ret = dict_set_dynstr(dst_dict, opt_key, dup_opt_val); + if (ret) { + snprintf(msg, sizeof(msg), + "Volume set %s %s " + "unsuccessful", + opt_key, dup_opt_val); + goto out; + } + i++; + } + +out: + if (msg[0]) + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_IMPORT_PRDICT_DICT, "%s", + msg); + gf_msg_debug("glusterd", 0, "Returning with %d", ret); + return ret; +} + +int +glusterd_spawn_daemons(void *opaque) +{ + glusterd_conf_t *conf = THIS->private; + int ret = -1; + + /* glusterd_restart_brick() will take the sync_lock. */ + glusterd_restart_bricks(NULL); + glusterd_restart_gsyncds(conf); + glusterd_restart_rebalance(conf); + ret = glusterd_snapdsvc_restart(); + ret = glusterd_gfproxydsvc_restart(); + ret = glusterd_shdsvc_restart(); + return ret; +} + +static int32_t +glusterd_import_friend_volume_opts(dict_t *peer_data, int count, + glusterd_volinfo_t *volinfo, char *prefix) +{ + char key[64]; + int keylen; + int32_t ret = -1; + int opt_count = 0; + char msg[2048] = ""; + char volume_prefix[32]; + + GF_ASSERT(peer_data); + GF_ASSERT(volinfo); + + snprintf(volume_prefix, sizeof(volume_prefix), "%s%d", prefix, count); + + keylen = snprintf(key, sizeof(key), "%s.opt-count", volume_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &opt_count); + if (ret) { + snprintf(msg, sizeof(msg), + "Volume option count not " + "specified for %s", + volinfo->volname); + goto out; + } + + ret = import_prdict_dict(peer_data, volinfo->dict, "key", "value", + opt_count, volume_prefix); + if (ret) { + snprintf(msg, sizeof(msg), + "Unable to import options dict " + "specified for %s", + volinfo->volname); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.gsync-count", volume_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &opt_count); + if (ret) { + snprintf(msg, sizeof(msg), + "Gsync count not " + "specified for %s", + volinfo->volname); + goto out; + } + + ret = import_prdict_dict(peer_data, volinfo->gsync_slaves, "slave-num", + "slave-val", opt_count, volume_prefix); + if (ret) { + snprintf(msg, sizeof(msg), + "Unable to import gsync sessions " + "specified for %s", + volinfo->volname); + goto out; + } + +out: + if (msg[0]) + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_VOL_OPTS_IMPORT_FAIL, "%s", + msg); + gf_msg_debug("glusterd", 0, "Returning with %d", ret); + return ret; +} + +static int32_t +glusterd_import_new_ta_brick(dict_t *peer_data, int32_t vol_count, + int32_t brick_count, + glusterd_brickinfo_t **ta_brickinfo, char *prefix) +{ + char key[128]; + char key_prefix[64]; + int keylen; + int ret = -1; + char *hostname = NULL; + char *path = NULL; + char *brick_id = NULL; + int decommissioned = 0; + glusterd_brickinfo_t *new_ta_brickinfo = NULL; + char msg[256] = ""; + char *brick_uuid_str = NULL; + + GF_ASSERT(peer_data); + GF_ASSERT(vol_count >= 0); + GF_ASSERT(ta_brickinfo); + GF_ASSERT(prefix); + + ret = snprintf(key_prefix, sizeof(key_prefix), "%s%d.ta-brick%d", prefix, + vol_count, brick_count); + + if (ret < 0 || ret >= sizeof(key_prefix)) { + ret = -1; + snprintf(msg, sizeof(msg), "key_prefix too long"); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.hostname", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &hostname); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload", key); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.path", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &path); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload", key); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.brick_id", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &brick_id); + + keylen = snprintf(key, sizeof(key), "%s.decommissioned", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &decommissioned); + if (ret) { + /* For backward compatibility */ + ret = 0; + } + + ret = glusterd_brickinfo_new(&new_ta_brickinfo); + if (ret) + goto out; + + ret = snprintf(new_ta_brickinfo->path, sizeof(new_ta_brickinfo->path), "%s", + path); + if (ret < 0 || ret >= sizeof(new_ta_brickinfo->path)) { + ret = -1; + goto out; + } + ret = snprintf(new_ta_brickinfo->hostname, + sizeof(new_ta_brickinfo->hostname), "%s", hostname); + if (ret < 0 || ret >= sizeof(new_ta_brickinfo->hostname)) { + ret = -1; + goto out; + } + new_ta_brickinfo->decommissioned = decommissioned; + if (brick_id) + (void)snprintf(new_ta_brickinfo->brick_id, + sizeof(new_ta_brickinfo->brick_id), "%s", brick_id); + keylen = snprintf(key, sizeof(key), "%s.uuid", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &brick_uuid_str); + if (ret) + goto out; + gf_uuid_parse(brick_uuid_str, new_ta_brickinfo->uuid); + + *ta_brickinfo = new_ta_brickinfo; + +out: + if (msg[0]) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_BRICK_IMPORT_FAIL, "%s", + msg); + gf_event(EVENT_IMPORT_BRICK_FAILED, "peer=%s;ta-brick=%s", + new_ta_brickinfo->hostname, new_ta_brickinfo->path); + } + gf_msg_debug("glusterd", 0, "Returning with %d", ret); + return ret; +} + +/* The prefix represents the type of volume to be added. + * It will be "volume" for normal volumes, and snap# like + * snap1, snap2, for snapshot volumes + */ +static int32_t +glusterd_import_new_brick(dict_t *peer_data, int32_t vol_count, + int32_t brick_count, glusterd_brickinfo_t **brickinfo, + char *prefix) +{ + char key[128]; + char key_prefix[64]; + int keylen; + int ret = -1; + char *hostname = NULL; + char *path = NULL; + char *brick_id = NULL; + int decommissioned = 0; + glusterd_brickinfo_t *new_brickinfo = NULL; + char msg[256] = ""; + char *brick_uuid_str = NULL; + + GF_ASSERT(peer_data); + GF_ASSERT(vol_count >= 0); + GF_ASSERT(brickinfo); + GF_ASSERT(prefix); + + ret = snprintf(key_prefix, sizeof(key_prefix), "%s%d.brick%d", prefix, + vol_count, brick_count); + if (ret < 0 || ret >= sizeof(key_prefix)) { + ret = -1; + snprintf(msg, sizeof(msg), "key_prefix too long"); + goto out; + } + keylen = snprintf(key, sizeof(key), "%s.hostname", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &hostname); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload", key); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.path", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &path); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload", key); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.brick_id", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &brick_id); + + keylen = snprintf(key, sizeof(key), "%s.decommissioned", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &decommissioned); + if (ret) { + /* For backward compatibility */ + ret = 0; + } + + ret = glusterd_brickinfo_new(&new_brickinfo); + if (ret) + goto out; + + ret = snprintf(new_brickinfo->path, sizeof(new_brickinfo->path), "%s", + path); + if (ret < 0 || ret >= sizeof(new_brickinfo->path)) { + ret = -1; + goto out; + } + ret = snprintf(new_brickinfo->hostname, sizeof(new_brickinfo->hostname), + "%s", hostname); + if (ret < 0 || ret >= sizeof(new_brickinfo->hostname)) { + ret = -1; + goto out; + } + new_brickinfo->decommissioned = decommissioned; + if (brick_id) + (void)snprintf(new_brickinfo->brick_id, sizeof(new_brickinfo->brick_id), + "%s", brick_id); + + ret = gd_import_new_brick_snap_details(peer_data, key_prefix, + new_brickinfo); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.uuid", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &brick_uuid_str); + if (ret) + goto out; + gf_uuid_parse(brick_uuid_str, new_brickinfo->uuid); + + *brickinfo = new_brickinfo; +out: + if (msg[0]) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_BRICK_IMPORT_FAIL, "%s", + msg); + if (new_brickinfo) + gf_event(EVENT_IMPORT_BRICK_FAILED, "peer=%s;brick=%s", + new_brickinfo->hostname, new_brickinfo->path); + } + gf_msg_debug("glusterd", 0, "Returning with %d", ret); + return ret; +} + +/* The prefix represents the type of volume to be added. + * It will be "volume" for normal volumes, and snap# like + * snap1, snap2, for snapshot volumes + */ +static int32_t +glusterd_import_bricks(dict_t *peer_data, int32_t vol_count, + glusterd_volinfo_t *new_volinfo, char *prefix) +{ + int ret = -1; + int brick_count = 1; + int ta_brick_count = 1; + int brickid = 0; + glusterd_brickinfo_t *new_brickinfo = NULL; + glusterd_brickinfo_t *new_ta_brickinfo = NULL; + + GF_ASSERT(peer_data); + GF_ASSERT(vol_count >= 0); + GF_ASSERT(new_volinfo); + GF_ASSERT(prefix); + while (brick_count <= new_volinfo->brick_count) { + ret = glusterd_import_new_brick(peer_data, vol_count, brick_count, + &new_brickinfo, prefix); + if (ret) + goto out; + if (new_brickinfo->brick_id[0] == '\0') + /*We were probed from a peer having op-version + less than GD_OP_VER_PERSISTENT_AFR_XATTRS*/ + GLUSTERD_ASSIGN_BRICKID_TO_BRICKINFO(new_brickinfo, new_volinfo, + brickid++); + cds_list_add_tail(&new_brickinfo->brick_list, &new_volinfo->bricks); + brick_count++; + } + + if (new_volinfo->thin_arbiter_count == 1) { + while (ta_brick_count <= new_volinfo->subvol_count) { + ret = glusterd_import_new_ta_brick(peer_data, vol_count, + ta_brick_count, + &new_ta_brickinfo, prefix); + if (ret) + goto out; + cds_list_add_tail(&new_ta_brickinfo->brick_list, + &new_volinfo->ta_bricks); + ta_brick_count++; + } + } + ret = 0; +out: + gf_msg_debug("glusterd", 0, "Returning with %d", ret); + return ret; +} + +/* The prefix represents the type of volume to be added. + * It will be "volume" for normal volumes, and snap# like + * snap1, snap2, for snapshot volumes + */ +int +glusterd_import_quota_conf(dict_t *peer_data, int vol_idx, + glusterd_volinfo_t *new_volinfo, char *prefix) +{ + int gfid_idx = 0; + int gfid_count = 0; + int ret = -1; + int fd = -1; + char key[128]; + char key_prefix[64]; + int keylen; + char *gfid_str = NULL; + uuid_t gfid = { + 0, + }; + xlator_t *this = NULL; + int8_t gfid_type = 0; + + this = THIS; + GF_ASSERT(this); + GF_ASSERT(peer_data); + GF_ASSERT(prefix); + + if (!glusterd_is_volume_quota_enabled(new_volinfo)) { + (void)glusterd_clean_up_quota_store(new_volinfo); + return 0; + } + + ret = glusterd_store_create_quota_conf_sh_on_absence(new_volinfo); + if (ret) + goto out; + + fd = gf_store_mkstemp(new_volinfo->quota_conf_shandle); + if (fd < 0) { + ret = -1; + goto out; + } + + ret = snprintf(key_prefix, sizeof(key_prefix), "%s%d", prefix, vol_idx); + if (ret < 0 || ret >= sizeof(key_prefix)) { + ret = -1; + gf_msg_debug(this->name, 0, "Failed to set key_prefix for quota conf"); + goto out; + } + snprintf(key, sizeof(key), "%s.quota-cksum", key_prefix); + ret = dict_get_uint32(peer_data, key, &new_volinfo->quota_conf_cksum); + if (ret) + gf_msg_debug(this->name, 0, "Failed to get quota cksum"); + + snprintf(key, sizeof(key), "%s.quota-version", key_prefix); + ret = dict_get_uint32(peer_data, key, &new_volinfo->quota_conf_version); + if (ret) + gf_msg_debug(this->name, 0, + "Failed to get quota " + "version"); + + keylen = snprintf(key, sizeof(key), "%s.gfid-count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &gfid_count); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + ret = glusterd_quota_conf_write_header(fd); + if (ret) + goto out; + + for (gfid_idx = 0; gfid_idx < gfid_count; gfid_idx++) { + keylen = snprintf(key, sizeof(key) - 1, "%s.gfid%d", key_prefix, + gfid_idx); + ret = dict_get_strn(peer_data, key, keylen, &gfid_str); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + snprintf(key, sizeof(key) - 1, "%s.gfid-type%d", key_prefix, gfid_idx); + ret = dict_get_int8(peer_data, key, &gfid_type); + if (ret) + gfid_type = GF_QUOTA_CONF_TYPE_USAGE; + + gf_uuid_parse(gfid_str, gfid); + ret = glusterd_quota_conf_write_gfid(fd, gfid, (char)gfid_type); + if (ret < 0) { + gf_msg(this->name, GF_LOG_CRITICAL, errno, + GD_MSG_QUOTA_CONF_WRITE_FAIL, + "Unable to write " + "gfid %s into quota.conf for %s", + gfid_str, new_volinfo->volname); + ret = -1; + goto out; + } + } + + ret = gf_store_rename_tmppath(new_volinfo->quota_conf_shandle); + + ret = 0; + +out: + if (!ret) { + ret = glusterd_compute_cksum(new_volinfo, _gf_true); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_CKSUM_COMPUTE_FAIL, + "Failed to compute checksum"); + goto clear_quota_conf; + } + + ret = glusterd_store_save_quota_version_and_cksum(new_volinfo); + if (ret) + gf_msg(this->name, GF_LOG_ERROR, 0, + GD_MSG_QUOTA_CKSUM_VER_STORE_FAIL, + "Failed to save quota version and checksum"); + } + +clear_quota_conf: + if (ret && (fd > 0)) { + gf_store_unlink_tmppath(new_volinfo->quota_conf_shandle); + (void)gf_store_handle_destroy(new_volinfo->quota_conf_shandle); + new_volinfo->quota_conf_shandle = NULL; + } + + return ret; +} + +int +gd_import_friend_volume_rebal_dict(dict_t *dict, int count, + glusterd_volinfo_t *volinfo) +{ + int ret = -1; + char key[64] = ""; + int dict_count = 0; + char key_prefix[32]; + + GF_ASSERT(dict); + GF_ASSERT(volinfo); + xlator_t *this = THIS; + GF_ASSERT(this); + + snprintf(key_prefix, sizeof(key_prefix), "volume%d", count); + ret = snprintf(key, sizeof(key), "%s.rebal-dict-count", key_prefix); + ret = dict_get_int32n(dict, key, ret, &dict_count); + if (ret) { + /* Older peers will not have this dict */ + gf_smsg(this->name, GF_LOG_INFO, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", key, NULL); + ret = 0; + goto out; + } + + volinfo->rebal.dict = dict_new(); + if (!volinfo->rebal.dict) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_CREATE_FAIL, NULL); + ret = -1; + goto out; + } + + ret = import_prdict_dict(dict, volinfo->rebal.dict, "rebal-dict-key", + "rebal-dict-value", dict_count, key_prefix); +out: + if (ret && volinfo->rebal.dict) + dict_unref(volinfo->rebal.dict); + gf_msg_debug(this->name, 0, "Returning with %d", ret); + return ret; +} + +/* The prefix represents the type of volume to be added. + * It will be "volume" for normal volumes, and snap# like + * snap1, snap2, for snapshot volumes + */ +int32_t +glusterd_import_volinfo(dict_t *peer_data, int count, + glusterd_volinfo_t **volinfo, char *prefix) +{ + int ret = -1; + char key[64] = ""; + char key_prefix[32]; + int keylen; + char *parent_volname = NULL; + char *volname = NULL; + glusterd_volinfo_t *new_volinfo = NULL; + char *volume_id_str = NULL; + char msg[2048] = ""; + char *str = NULL; + char *rebalance_id_str = NULL; + int op_version = 0; + int client_op_version = 0; + uint32_t stage_deleted = 0; + + GF_ASSERT(peer_data); + GF_ASSERT(volinfo); + GF_ASSERT(prefix); + + ret = snprintf(key_prefix, sizeof(key_prefix), "%s%d", prefix, count); + if (ret < 0 || ret >= sizeof(key_prefix)) { + ret = -1; + snprintf(msg, sizeof(msg), "key_prefix too big"); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.name", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &volname); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload", key); + goto out; + } + + snprintf(key, sizeof(key), "%s.stage_deleted", key_prefix); + ret = dict_get_uint32(peer_data, key, &stage_deleted); + /* stage_deleted = 1 means the volume is still in the process of + * deleting a volume, so we shouldn't be trying to create a + * fresh volume here which would lead to a stale entry + */ + if (stage_deleted) { + goto out; + } + + ret = glusterd_volinfo_new(&new_volinfo); + if (ret) + goto out; + ret = snprintf(new_volinfo->volname, sizeof(new_volinfo->volname), "%s", + volname); + if (ret < 0 || ret >= sizeof(new_volinfo->volname)) { + ret = -1; + goto out; + } + keylen = snprintf(key, sizeof(key), "%s.type", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &new_volinfo->type); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload for %s", key, + volname); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.parent_volname", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &parent_volname); + if (!ret) { + ret = snprintf(new_volinfo->parent_volname, + sizeof(new_volinfo->parent_volname), "%s", + parent_volname); + if (ret < 0 || ret >= sizeof(new_volinfo->volname)) { + ret = -1; + goto out; + } + } + keylen = snprintf(key, sizeof(key), "%s.brick_count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &new_volinfo->brick_count); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload for %s", key, + volname); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.version", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &new_volinfo->version); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload for %s", key, + volname); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.status", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, + (int32_t *)&new_volinfo->status); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload for %s", key, + volname); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.sub_count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &new_volinfo->sub_count); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload for %s", key, + volname); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.subvol_count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &new_volinfo->subvol_count); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload for %s", key, + volname); + goto out; + } + + /* not having a 'stripe_count' key is not a error + (as peer may be of old version) */ + keylen = snprintf(key, sizeof(key), "%s.stripe_count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &new_volinfo->stripe_count); + if (ret) + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "peer is possibly old version"); + + /* not having a 'replica_count' key is not a error + (as peer may be of old version) */ + keylen = snprintf(key, sizeof(key), "%s.replica_count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &new_volinfo->replica_count); + if (ret) + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "peer is possibly old version"); + + /* not having a 'arbiter_count' key is not a error + (as peer may be of old version) */ + keylen = snprintf(key, sizeof(key), "%s.arbiter_count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &new_volinfo->arbiter_count); + if (ret) + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "peer is possibly old version"); + + /* not having a 'thin_arbiter_count' key is not a error + (as peer may be of old version) */ + keylen = snprintf(key, sizeof(key), "%s.thin_arbiter_count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, + &new_volinfo->thin_arbiter_count); + if (ret) + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "peer is possibly old version"); + + /* not having a 'disperse_count' key is not a error + (as peer may be of old version) */ + keylen = snprintf(key, sizeof(key), "%s.disperse_count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &new_volinfo->disperse_count); + if (ret) + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "peer is possibly old version"); + + /* not having a 'redundancy_count' key is not a error + (as peer may be of old version) */ + keylen = snprintf(key, sizeof(key), "%s.redundancy_count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, + &new_volinfo->redundancy_count); + if (ret) + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "peer is possibly old version"); + + /* not having a 'dist_count' key is not a error + (as peer may be of old version) */ + keylen = snprintf(key, sizeof(key), "%s.dist_count", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, + &new_volinfo->dist_leaf_count); + if (ret) + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "peer is possibly old version"); + + new_volinfo->subvol_count = new_volinfo->brick_count / + glusterd_get_dist_leaf_count(new_volinfo); + snprintf(key, sizeof(key), "%s.ckusm", key_prefix); + ret = dict_get_uint32(peer_data, key, &new_volinfo->cksum); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload for %s", key, + volname); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.volume_id", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &volume_id_str); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload for %s", key, + volname); + goto out; + } + + gf_uuid_parse(volume_id_str, new_volinfo->volume_id); + + keylen = snprintf(key, sizeof(key), "%s.username", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &str); + if (!ret) { + ret = glusterd_auth_set_username(new_volinfo, str); + if (ret) + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.password", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &str); + if (!ret) { + ret = glusterd_auth_set_password(new_volinfo, str); + if (ret) + goto out; + } + + snprintf(key, sizeof(key), "%s.transport_type", key_prefix); + ret = dict_get_uint32(peer_data, key, &new_volinfo->transport_type); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload for %s", key, + volname); + goto out; + } + + snprintf(key, sizeof(key), "%s.rebalance", key_prefix); + ret = dict_get_uint32(peer_data, key, &new_volinfo->rebal.defrag_cmd); + if (ret) { + snprintf(msg, sizeof(msg), "%s missing in payload for %s", key, + volname); + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.rebalance-id", key_prefix); + ret = dict_get_strn(peer_data, key, keylen, &rebalance_id_str); + if (ret) { + /* This is not present in older glusterfs versions, + * so don't error out + */ + ret = 0; + } else { + gf_uuid_parse(rebalance_id_str, new_volinfo->rebal.rebalance_id); + } + + snprintf(key, sizeof(key), "%s.rebalance-op", key_prefix); + /* This is not present in older glusterfs versions, + * so don't error out + */ + ret = dict_get_uint32(peer_data, key, (uint32_t *)&new_volinfo->rebal.op); + + ret = gd_import_friend_volume_rebal_dict(peer_data, count, new_volinfo); + if (ret) { + snprintf(msg, sizeof(msg), + "Failed to import rebalance dict " + "for volume."); + goto out; + } + + ret = gd_import_volume_snap_details(peer_data, new_volinfo, key_prefix, + volname); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_SNAP_DETAILS_IMPORT_FAIL, + "Failed to import snapshot " + "details for volume %s", + volname); + goto out; + } + + ret = glusterd_import_friend_volume_opts(peer_data, count, new_volinfo, + prefix); + if (ret) + goto out; + + /* Import the volume's op-versions if available else set it to 1. + * Not having op-versions implies this informtation was obtained from a + * op-version 1 friend (gluster-3.3), ergo the cluster is at op-version + * 1 and all volumes are at op-versions 1. + * + * Either both the volume op-versions should be absent or both should be + * present. Only one being present is a failure + */ + keylen = snprintf(key, sizeof(key), "%s.op-version", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &op_version); + if (ret) + ret = 0; + keylen = snprintf(key, sizeof(key), "%s.client-op-version", key_prefix); + ret = dict_get_int32n(peer_data, key, keylen, &client_op_version); + if (ret) + ret = 0; + + if (op_version && client_op_version) { + new_volinfo->op_version = op_version; + new_volinfo->client_op_version = client_op_version; + } else if (((op_version == 0) && (client_op_version != 0)) || + ((op_version != 0) && (client_op_version == 0))) { + ret = -1; + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Only one volume op-version found"); + goto out; + } else { + new_volinfo->op_version = 1; + new_volinfo->client_op_version = 1; + } + + keylen = snprintf(key, sizeof(key), "%s.quota-xattr-version", key_prefix); + /*This is not present in older glusterfs versions, so ignore ret value*/ + ret = dict_get_int32n(peer_data, key, keylen, + &new_volinfo->quota_xattr_version); + + ret = glusterd_import_bricks(peer_data, count, new_volinfo, prefix); + if (ret) + goto out; + + *volinfo = new_volinfo; +out: + if (msg[0]) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_VOLINFO_IMPORT_FAIL, "%s", + msg); + gf_event(EVENT_IMPORT_VOLUME_FAILED, "volume=%s", new_volinfo->volname); + } + gf_msg_debug("glusterd", 0, "Returning with %d", ret); + return ret; +} + +int32_t +glusterd_volume_disconnect_all_bricks(glusterd_volinfo_t *volinfo) +{ + int ret = 0; + glusterd_brickinfo_t *brickinfo = NULL; + glusterd_brick_proc_t *brick_proc = NULL; + int brick_count = 0; + + GF_ASSERT(volinfo); + + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + if (glusterd_is_brick_started(brickinfo)) { + /* If brick multiplexing is enabled then we can't + * blindly set brickinfo->rpc to NULL as it might impact + * the other attached bricks. + */ + ret = glusterd_brick_proc_for_port(brickinfo->port, &brick_proc); + if (!ret) { + brick_count = brick_proc->brick_count; + } + if (!is_brick_mx_enabled() || brick_count == 0) { + ret = glusterd_brick_disconnect(brickinfo); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, + GD_MSD_BRICK_DISCONNECT_FAIL, + "Failed to " + "disconnect %s:%s", + brickinfo->hostname, brickinfo->path); + break; + } + } + } + } + + return ret; +} + +int32_t +glusterd_volinfo_copy_brickinfo(glusterd_volinfo_t *old_volinfo, + glusterd_volinfo_t *new_volinfo) +{ + glusterd_brickinfo_t *new_brickinfo = NULL; + glusterd_brickinfo_t *old_brickinfo = NULL; + glusterd_brickinfo_t *new_ta_brickinfo = NULL; + glusterd_brickinfo_t *old_ta_brickinfo = NULL; + glusterd_conf_t *priv = NULL; + int ret = 0; + xlator_t *this = NULL; + char abspath[PATH_MAX] = ""; + + GF_ASSERT(new_volinfo); + GF_ASSERT(old_volinfo); + this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_ASSERT(priv); + + cds_list_for_each_entry(new_brickinfo, &new_volinfo->bricks, brick_list) + { + ret = glusterd_volume_brickinfo_get( + new_brickinfo->uuid, new_brickinfo->hostname, new_brickinfo->path, + old_volinfo, &old_brickinfo); + if (ret == 0) { + new_brickinfo->port = old_brickinfo->port; + + if (old_brickinfo->real_path[0] == '\0') { + if (!realpath(new_brickinfo->path, abspath)) { + /* Here an ENOENT should also be a + * failure as the brick is expected to + * be in existence + */ + gf_msg(this->name, GF_LOG_CRITICAL, errno, + GD_MSG_BRICKINFO_CREATE_FAIL, + "realpath () failed for brick " + "%s. The underlying filesystem " + "may be in bad state", + new_brickinfo->path); + ret = -1; + goto out; + } + if (strlen(abspath) >= sizeof(new_brickinfo->real_path)) { + ret = -1; + goto out; + } + (void)strncpy(new_brickinfo->real_path, abspath, + sizeof(new_brickinfo->real_path)); + } else { + (void)strncpy(new_brickinfo->real_path, + old_brickinfo->real_path, + sizeof(new_brickinfo->real_path)); + } + } + } + if (new_volinfo->thin_arbiter_count == 1) { + cds_list_for_each_entry(new_ta_brickinfo, &new_volinfo->ta_bricks, + brick_list) + { + ret = glusterd_volume_ta_brickinfo_get( + new_ta_brickinfo->uuid, new_ta_brickinfo->hostname, + new_ta_brickinfo->path, old_volinfo, &old_ta_brickinfo); + if (ret == 0) { + new_ta_brickinfo->port = old_ta_brickinfo->port; + + if (old_ta_brickinfo->real_path[0] == '\0') { + if (!realpath(new_ta_brickinfo->path, abspath)) { + /* Here an ENOENT should also be a + * failure as the brick is expected to + * be in existence + */ + gf_msg(this->name, GF_LOG_CRITICAL, errno, + GD_MSG_BRICKINFO_CREATE_FAIL, + "realpath () failed for brick " + "%s. The underlying filesystem " + "may be in bad state", + new_brickinfo->path); + ret = -1; + goto out; + } + if (strlen(abspath) >= + sizeof(new_ta_brickinfo->real_path)) { + ret = -1; + goto out; + } + (void)strncpy(new_ta_brickinfo->real_path, abspath, + sizeof(new_ta_brickinfo->real_path)); + } else { + (void)strncpy(new_ta_brickinfo->real_path, + old_ta_brickinfo->real_path, + sizeof(new_ta_brickinfo->real_path)); + } + } + } + } + ret = 0; + +out: + return ret; +} + +int32_t +glusterd_volinfo_stop_stale_bricks(glusterd_volinfo_t *new_volinfo, + glusterd_volinfo_t *old_volinfo) +{ + glusterd_brickinfo_t *new_brickinfo = NULL; + glusterd_brickinfo_t *old_brickinfo = NULL; + + int ret = 0; + GF_ASSERT(new_volinfo); + GF_ASSERT(old_volinfo); + if (_gf_false == glusterd_is_volume_started(old_volinfo)) + goto out; + cds_list_for_each_entry(old_brickinfo, &old_volinfo->bricks, brick_list) + { + ret = glusterd_volume_brickinfo_get( + old_brickinfo->uuid, old_brickinfo->hostname, old_brickinfo->path, + new_volinfo, &new_brickinfo); + /* If the brick is stale, i.e it's not a part of the new volume + * or if it's part of the new volume and is pending a snap or if it's + * brick multiplexing enabled, then stop the brick process + */ + if (ret || (new_brickinfo->snap_status == -1) || + GF_ATOMIC_GET(old_volinfo->volpeerupdate)) { + /*TODO: may need to switch to 'atomic' flavour of + * brick_stop, once we make peer rpc program also + * synctask enabled*/ + ret = glusterd_brick_stop(old_volinfo, old_brickinfo, _gf_false); + if (ret) + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_BRICK_STOP_FAIL, + "Failed to stop" + " brick %s:%s", + old_brickinfo->hostname, old_brickinfo->path); + } + } + ret = 0; +out: + gf_msg_debug("glusterd", 0, "Returning with %d", ret); + return ret; +} + +int32_t +glusterd_delete_stale_volume(glusterd_volinfo_t *stale_volinfo, + glusterd_volinfo_t *valid_volinfo) +{ + int32_t ret = -1; + glusterd_volinfo_t *temp_volinfo = NULL; + glusterd_volinfo_t *voliter = NULL; + xlator_t *this = NULL; + glusterd_svc_t *svc = NULL; + + GF_ASSERT(stale_volinfo); + GF_ASSERT(valid_volinfo); + this = THIS; + GF_ASSERT(this); + + /* Copy snap_volumes list from stale_volinfo to valid_volinfo */ + valid_volinfo->snap_count = 0; + cds_list_for_each_entry_safe(voliter, temp_volinfo, + &stale_volinfo->snap_volumes, snapvol_list) + { + cds_list_add_tail(&voliter->snapvol_list, &valid_volinfo->snap_volumes); + valid_volinfo->snap_count++; + } + + if ((!gf_uuid_is_null(stale_volinfo->restored_from_snap)) && + (gf_uuid_compare(stale_volinfo->restored_from_snap, + valid_volinfo->restored_from_snap))) { + ret = glusterd_lvm_snapshot_remove(NULL, stale_volinfo); + if (ret) { + gf_msg(this->name, GF_LOG_WARNING, 0, GD_MSG_SNAP_REMOVE_FAIL, + "Failed to remove lvm snapshot for " + "restored volume %s", + stale_volinfo->volname); + } + } + + /* If stale volume is in started state, stop the stale bricks if the new + * volume is started else, stop all bricks. + * We don't want brick_rpc_notify to access already deleted brickinfo, + * so disconnect all bricks from stale_volinfo (unconditionally), since + * they are being deleted subsequently. + */ + if (glusterd_is_volume_started(stale_volinfo)) { + if (glusterd_is_volume_started(valid_volinfo)) { + (void)glusterd_volinfo_stop_stale_bricks(valid_volinfo, + stale_volinfo); + + } else { + (void)glusterd_stop_bricks(stale_volinfo); + } + + (void)glusterd_volume_disconnect_all_bricks(stale_volinfo); + } + /* Delete all the bricks and stores and vol files. They will be created + * again by the valid_volinfo. Volume store delete should not be + * performed because some of the bricks could still be running, + * keeping pid files under run directory + */ + (void)glusterd_delete_all_bricks(stale_volinfo); + if (stale_volinfo->shandle) { + sys_unlink(stale_volinfo->shandle->path); + (void)gf_store_handle_destroy(stale_volinfo->shandle); + stale_volinfo->shandle = NULL; + } + + /* Marking volume as stopped, so that svc manager stops snapd + * and we are deleting the volume. + */ + stale_volinfo->status = GLUSTERD_STATUS_STOPPED; + + if (!stale_volinfo->is_snap_volume) { + svc = &(stale_volinfo->snapd.svc); + (void)svc->manager(svc, stale_volinfo, PROC_START_NO_WAIT); + } + svc = &(stale_volinfo->shd.svc); + (void)svc->manager(svc, stale_volinfo, PROC_START_NO_WAIT); + + (void)glusterd_volinfo_remove(stale_volinfo); + + return 0; +} + +/* This function updates the rebalance information of the new volinfo using the + * information from the old volinfo. + */ +int +gd_check_and_update_rebalance_info(glusterd_volinfo_t *old_volinfo, + glusterd_volinfo_t *new_volinfo) +{ + int ret = -1; + glusterd_rebalance_t *old = NULL; + glusterd_rebalance_t *new = NULL; + + GF_ASSERT(old_volinfo); + GF_ASSERT(new_volinfo); + + old = &(old_volinfo->rebal); + new = &(new_volinfo->rebal); + + // Disconnect from rebalance process + if (glusterd_defrag_rpc_get(old->defrag)) { + rpc_transport_disconnect(old->defrag->rpc->conn.trans, _gf_false); + glusterd_defrag_rpc_put(old->defrag); + } + + if (!gf_uuid_is_null(old->rebalance_id) && + gf_uuid_compare(old->rebalance_id, new->rebalance_id)) { + (void)gd_stop_rebalance_process(old_volinfo); + goto out; + } + + /* If the tasks match, copy the status and other information of the + * rebalance process from old_volinfo to new_volinfo + */ + new->defrag_status = old->defrag_status; + new->rebalance_files = old->rebalance_files; + new->rebalance_data = old->rebalance_data; + new->lookedup_files = old->lookedup_files; + new->skipped_files = old->skipped_files; + new->rebalance_failures = old->rebalance_failures; + new->rebalance_time = old->rebalance_time; + + /* glusterd_rebalance_t.{op, id, defrag_cmd} are copied during volume + * import a new defrag object should come to life with rebalance being + * restarted + */ +out: + return ret; +} + +static int32_t +glusterd_import_friend_volume(dict_t *peer_data, int count) +{ + int32_t ret = -1; + glusterd_conf_t *priv = NULL; + xlator_t *this = NULL; + glusterd_volinfo_t *old_volinfo = NULL; + glusterd_volinfo_t *new_volinfo = NULL; + glusterd_svc_t *svc = NULL; + int32_t update = 0; + char key[64] = ""; + + GF_ASSERT(peer_data); + + this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_ASSERT(priv); + + ret = snprintf(key, sizeof(key), "volume%d.update", count); + ret = dict_get_int32n(peer_data, key, ret, &update); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + if (!update) { + /* if update is 0 that means the volume is not imported */ + gf_smsg(this->name, GF_LOG_INFO, 0, GD_MSG_VOLUME_NOT_IMPORTED, NULL); + goto out; + } + + ret = glusterd_import_volinfo(peer_data, count, &new_volinfo, "volume"); + if (ret) + goto out; + + if (!new_volinfo) { + gf_msg_debug(this->name, 0, "Not importing snap volume"); + goto out; + } + + ret = glusterd_volinfo_find(new_volinfo->volname, &old_volinfo); + if (0 == ret) { + if (new_volinfo->version <= old_volinfo->version) { + /* When this condition is true, it already means that + * the other synctask thread of import volume has + * already up to date volume, so just ignore this volume + * now + */ + goto out; + } + /* Ref count the old_volinfo such that deleting it doesn't crash + * if its been already in use by other thread + */ + glusterd_volinfo_ref(old_volinfo); + (void)gd_check_and_update_rebalance_info(old_volinfo, new_volinfo); + + /* Copy brick ports & real_path from the old volinfo always. + * The old_volinfo will be cleaned up and this information + * could be lost + */ + (void)glusterd_volinfo_copy_brickinfo(old_volinfo, new_volinfo); + + (void)glusterd_delete_stale_volume(old_volinfo, new_volinfo); + glusterd_volinfo_unref(old_volinfo); + } + + ret = glusterd_store_volinfo(new_volinfo, GLUSTERD_VOLINFO_VER_AC_NONE); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_VOLINFO_STORE_FAIL, + "Failed to store " + "volinfo for volume %s", + new_volinfo->volname); + goto out; + } + + ret = glusterd_create_volfiles(new_volinfo); + if (ret) + goto out; + + glusterd_list_add_order(&new_volinfo->vol_list, &priv->volumes, + glusterd_compare_volume_name); + + if (glusterd_is_volume_started(new_volinfo)) { + (void)glusterd_start_bricks(new_volinfo); + if (glusterd_is_snapd_enabled(new_volinfo)) { + svc = &(new_volinfo->snapd.svc); + if (svc->manager(svc, new_volinfo, PROC_START_NO_WAIT)) { + gf_event(EVENT_SVC_MANAGER_FAILED, "svc_name=%s", svc->name); + } + } + svc = &(new_volinfo->shd.svc); + if (svc->manager(svc, new_volinfo, PROC_START_NO_WAIT)) { + gf_event(EVENT_SVC_MANAGER_FAILED, "svc_name=%s", svc->name); + } + } + + ret = glusterd_import_quota_conf(peer_data, count, new_volinfo, "volume"); + if (ret) { + gf_event(EVENT_IMPORT_QUOTA_CONF_FAILED, "volume=%s", + new_volinfo->volname); + goto out; + } + + ret = glusterd_fetchspec_notify(this); +out: + gf_msg_debug("glusterd", 0, "Returning with ret: %d", ret); + return ret; +} + +int32_t +glusterd_import_friend_volumes_synctask(void *opaque) +{ + int32_t ret = -1; + int32_t count = 0; + int i = 1; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + dict_t *peer_data = NULL; + glusterd_friend_synctask_args_t *arg = NULL; + + this = THIS; + GF_ASSERT(this); + + conf = this->private; + GF_ASSERT(conf); + + arg = opaque; + if (!arg) + goto out; + + peer_data = dict_new(); + if (!peer_data) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_CREATE_FAIL, NULL); + goto out; + } + + ret = dict_unserialize(arg->dict_buf, arg->dictlen, &peer_data); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_UNSERIALIZE_FAIL, + NULL); + errno = ENOMEM; + goto out; + } + + ret = dict_get_int32n(peer_data, "count", SLEN("count"), &count); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=count", NULL); + goto out; + } + + synclock_lock(&conf->big_lock); + + /* We need to ensure that importing a volume shouldn't race with an + * other thread where as part of restarting glusterd, bricks are + * restarted (refer glusterd_restart_bricks ()) + */ + while (conf->restart_bricks) { + synccond_wait(&conf->cond_restart_bricks, &conf->big_lock); + } + conf->restart_bricks = _gf_true; + + while (i <= count) { + ret = glusterd_import_friend_volume(peer_data, i); + if (ret) { + break; + } + i++; + } + if (i > count) { + glusterd_svcs_manager(NULL); + } + conf->restart_bricks = _gf_false; + synccond_broadcast(&conf->cond_restart_bricks); +out: + if (peer_data) + dict_unref(peer_data); + if (arg) { + if (arg->dict_buf) + GF_FREE(arg->dict_buf); + GF_FREE(arg); + } + + gf_msg_debug("glusterd", 0, "Returning with %d", ret); + return ret; +} + +int32_t +glusterd_import_friend_volumes(dict_t *peer_data) +{ + int32_t ret = -1; + int32_t count = 0; + int i = 1; + + GF_ASSERT(peer_data); + + ret = dict_get_int32n(peer_data, "count", SLEN("count"), &count); + if (ret) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=count", NULL); + goto out; + } + + while (i <= count) { + ret = glusterd_import_friend_volume(peer_data, i); + if (ret) + goto out; + i++; + } + +out: + gf_msg_debug("glusterd", 0, "Returning with %d", ret); + return ret; +} + +int +glusterd_get_global_server_quorum_ratio(dict_t *opts, double *quorum) +{ + int ret = -1; + char *quorum_str = NULL; + xlator_t *this = THIS; + GF_ASSERT(this); + + ret = dict_get_strn(opts, GLUSTERD_QUORUM_RATIO_KEY, + SLEN(GLUSTERD_QUORUM_RATIO_KEY), &quorum_str); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", GLUSTERD_QUORUM_RATIO_KEY, NULL); + goto out; + } + + ret = gf_string2percent(quorum_str, quorum); + if (ret) + goto out; + ret = 0; +out: + return ret; +} + +int +glusterd_get_global_opt_version(dict_t *opts, uint32_t *version) +{ + int ret = -1; + char *version_str = NULL; + xlator_t *this = THIS; + GF_ASSERT(this); + + ret = dict_get_strn(opts, GLUSTERD_GLOBAL_OPT_VERSION, + SLEN(GLUSTERD_GLOBAL_OPT_VERSION), &version_str); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", GLUSTERD_GLOBAL_OPT_VERSION, NULL); + goto out; + } + + ret = gf_string2uint(version_str, version); + if (ret) + goto out; + ret = 0; +out: + return ret; +} + +int +glusterd_get_next_global_opt_version_str(dict_t *opts, char **version_str) +{ + int ret = -1; + char version_string[64] = ""; + uint32_t version = 0; + + ret = glusterd_get_global_opt_version(opts, &version); + if (ret) + goto out; + version++; + snprintf(version_string, sizeof(version_string), "%" PRIu32, version); + *version_str = gf_strdup(version_string); + if (*version_str) + ret = 0; +out: + return ret; +} + +int32_t +glusterd_import_global_opts(dict_t *friend_data) +{ + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + int ret = -1; + dict_t *import_options = NULL; + int count = 0; + uint32_t local_version = 0; + uint32_t remote_version = 0; + double old_quorum = 0.0; + double new_quorum = 0.0; + + this = THIS; + conf = this->private; + + ret = dict_get_int32n(friend_data, "global-opt-count", + SLEN("global-opt-count"), &count); + if (ret) { + // old version peer + gf_smsg(this->name, GF_LOG_INFO, errno, GD_MSG_DICT_GET_FAILED, + "Key=global-opt-count", NULL); + ret = 0; + goto out; + } + + import_options = dict_new(); + if (!import_options) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_CREATE_FAIL, NULL); + goto out; + } + ret = import_prdict_dict(friend_data, import_options, "key", "val", count, + "global"); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_GLOBAL_OPT_IMPORT_FAIL, + "Failed to import" + " global options"); + goto out; + } + + /* Not handling ret since server-quorum-ratio might not yet be set */ + ret = glusterd_get_global_server_quorum_ratio(conf->opts, &old_quorum); + ret = glusterd_get_global_server_quorum_ratio(import_options, &new_quorum); + + ret = glusterd_get_global_opt_version(conf->opts, &local_version); + if (ret) + goto out; + ret = glusterd_get_global_opt_version(import_options, &remote_version); + if (ret) + goto out; + + if (remote_version > local_version) { + ret = glusterd_store_options(this, import_options); + if (ret) + goto out; + dict_unref(conf->opts); + conf->opts = dict_ref(import_options); + + /* If server quorum ratio has changed, restart bricks to + * recompute if quorum is met. If quorum is not met bricks are + * not started and those already running are stopped + */ + if (old_quorum != new_quorum) { + glusterd_launch_synctask(glusterd_restart_bricks, NULL); + } + } + + ret = 0; +out: + if (import_options) + dict_unref(import_options); + return ret; +} + +int32_t +glusterd_compare_friend_data(dict_t *peer_data, int32_t *status, char *hostname) +{ + int32_t ret = -1; + int32_t count = 0; + int i = 1; + gf_boolean_t update = _gf_false; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + glusterd_friend_synctask_args_t *arg = NULL; + + this = THIS; + GF_ASSERT(this); + GF_ASSERT(peer_data); + GF_ASSERT(status); + + priv = this->private; + GF_ASSERT(priv); + ret = glusterd_import_global_opts(peer_data); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_GLOBAL_OPT_IMPORT_FAIL, + "Importing global " + "options failed"); + goto out; + } + + ret = dict_get_int32n(peer_data, "count", SLEN("count"), &count); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=count", NULL); + goto out; + } + + while (i <= count) { + ret = glusterd_compare_friend_volume(peer_data, i, status, hostname); + if (ret) + goto out; + + if (GLUSTERD_VOL_COMP_RJT == *status) { + ret = 0; + goto out; + } + if (GLUSTERD_VOL_COMP_UPDATE_REQ == *status) { + update = _gf_true; + } + i++; + } + + if (update) { + /* Launch the import friend volume as a separate synctask as it + * has to trigger start bricks where we may need to wait for the + * first brick to come up before attaching the subsequent bricks + * in case brick multiplexing is enabled + */ + arg = GF_CALLOC(1, sizeof(*arg), gf_common_mt_char); + ret = dict_allocate_and_serialize(peer_data, &arg->dict_buf, + &arg->dictlen); + if (ret < 0) { + gf_log(this->name, GF_LOG_ERROR, + "dict_serialize failed while handling " + " import friend volume request"); + goto out; + } + + glusterd_launch_synctask(glusterd_import_friend_volumes_synctask, arg); + } + +out: + if (ret && arg) { + GF_FREE(arg); + } + gf_msg_debug(this->name, 0, "Returning with ret: %d, status: %d", ret, + *status); + return ret; +} + +struct rpc_clnt * +glusterd_defrag_rpc_get(glusterd_defrag_info_t *defrag) +{ + struct rpc_clnt *rpc = NULL; + + if (!defrag) + return NULL; + + LOCK(&defrag->lock); + { + rpc = rpc_clnt_ref(defrag->rpc); + } + UNLOCK(&defrag->lock); + return rpc; +} + +struct rpc_clnt * +glusterd_defrag_rpc_put(glusterd_defrag_info_t *defrag) +{ + struct rpc_clnt *rpc = NULL; + + if (!defrag) + return NULL; + + LOCK(&defrag->lock); + { + rpc = rpc_clnt_unref(defrag->rpc); + defrag->rpc = rpc; + } + UNLOCK(&defrag->lock); + return rpc; +} + +struct rpc_clnt * +glusterd_pending_node_get_rpc(glusterd_pending_node_t *pending_node) +{ + struct rpc_clnt *rpc = NULL; + glusterd_brickinfo_t *brickinfo = NULL; + glusterd_volinfo_t *volinfo = NULL; + glusterd_svc_t *svc = NULL; + + GF_VALIDATE_OR_GOTO(THIS->name, pending_node, out); + GF_VALIDATE_OR_GOTO(THIS->name, pending_node->node, out); + + if (pending_node->type == GD_NODE_BRICK) { + brickinfo = pending_node->node; + rpc = brickinfo->rpc; + + } else if (pending_node->type == GD_NODE_SHD || + pending_node->type == GD_NODE_NFS || + pending_node->type == GD_NODE_QUOTAD || + pending_node->type == GD_NODE_SCRUB) { + svc = pending_node->node; + rpc = svc->conn.rpc; + } else if (pending_node->type == GD_NODE_REBALANCE) { + volinfo = pending_node->node; + rpc = glusterd_defrag_rpc_get(volinfo->rebal.defrag); + + } else if (pending_node->type == GD_NODE_SNAPD) { + volinfo = pending_node->node; + rpc = volinfo->snapd.svc.conn.rpc; + } else { + GF_ASSERT(0); + } + +out: + return rpc; +} + +void +glusterd_pending_node_put_rpc(glusterd_pending_node_t *pending_node) +{ + glusterd_volinfo_t *volinfo = NULL; + + switch (pending_node->type) { + case GD_NODE_REBALANCE: + volinfo = pending_node->node; + glusterd_defrag_rpc_put(volinfo->rebal.defrag); + break; + + default: + break; + } +} + +int32_t +glusterd_unlink_file(char *sockfpath) +{ + int ret = 0; + + ret = sys_unlink(sockfpath); + if (ret) { + if (ENOENT == errno) + ret = 0; + else + gf_msg(THIS->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Failed to remove %s" + " error: %s", + sockfpath, strerror(errno)); + } + + return ret; +} + +void +glusterd_nfs_pmap_deregister() +{ + if (pmap_unset(MOUNT_PROGRAM, MOUNTV3_VERSION)) + gf_msg("glusterd", GF_LOG_INFO, 0, GD_MSG_DEREGISTER_SUCCESS, + "De-registered MOUNTV3 successfully"); + else + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_PMAP_UNSET_FAIL, + "De-register MOUNTV3 is unsuccessful"); + + if (pmap_unset(MOUNT_PROGRAM, MOUNTV1_VERSION)) + gf_msg("glusterd", GF_LOG_INFO, 0, GD_MSG_DEREGISTER_SUCCESS, + "De-registered MOUNTV1 successfully"); + else + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_PMAP_UNSET_FAIL, + "De-register MOUNTV1 is unsuccessful"); + + if (pmap_unset(NFS_PROGRAM, NFSV3_VERSION)) + gf_msg("glusterd", GF_LOG_INFO, 0, GD_MSG_DEREGISTER_SUCCESS, + "De-registered NFSV3 successfully"); + else + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_PMAP_UNSET_FAIL, + "De-register NFSV3 is unsuccessful"); + + if (pmap_unset(NLM_PROGRAM, NLMV4_VERSION)) + gf_msg("glusterd", GF_LOG_INFO, 0, GD_MSG_DEREGISTER_SUCCESS, + "De-registered NLM v4 successfully"); + else + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_PMAP_UNSET_FAIL, + "De-registration of NLM v4 failed"); + + if (pmap_unset(NLM_PROGRAM, NLMV1_VERSION)) + gf_msg("glusterd", GF_LOG_INFO, 0, GD_MSG_DEREGISTER_SUCCESS, + "De-registered NLM v1 successfully"); + else + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_PMAP_UNSET_FAIL, + "De-registration of NLM v1 failed"); + + if (pmap_unset(ACL_PROGRAM, ACLV3_VERSION)) + gf_msg("glusterd", GF_LOG_INFO, 0, GD_MSG_DEREGISTER_SUCCESS, + "De-registered ACL v3 successfully"); + else + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_PMAP_UNSET_FAIL, + "De-registration of ACL v3 failed"); +} + +int +glusterd_add_node_to_dict(char *server, dict_t *dict, int count, + dict_t *vol_opts) +{ + int ret = -1; + char pidfile[PATH_MAX] = ""; + gf_boolean_t running = _gf_false; + int pid = -1; + int port = 0; + glusterd_svc_t *svc = NULL; + char key[64] = ""; + int keylen; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GF_ASSERT(priv); + + if (!strcmp(server, "")) { + ret = 0; + goto out; + } + + glusterd_svc_build_pidfile_path(server, priv->rundir, pidfile, + sizeof(pidfile)); + + if (strcmp(server, priv->quotad_svc.name) == 0) + svc = &(priv->quotad_svc); +#ifdef BUILD_GNFS + else if (strcmp(server, priv->nfs_svc.name) == 0) + svc = &(priv->nfs_svc); +#endif + else if (strcmp(server, priv->bitd_svc.name) == 0) + svc = &(priv->bitd_svc); + else if (strcmp(server, priv->scrub_svc.name) == 0) + svc = &(priv->scrub_svc); + else { + ret = 0; + goto out; + } + + // Consider service to be running only when glusterd sees it Online + if (svc->online) + running = gf_is_service_running(pidfile, &pid); + + /* For nfs-servers/self-heal-daemon setting + * brick<n>.hostname = "NFS Server" / "Self-heal Daemon" + * brick<n>.path = uuid + * brick<n>.port = 0 + * + * This might be confusing, but cli displays the name of + * the brick as hostname+path, so this will make more sense + * when output. + */ + + keylen = snprintf(key, sizeof(key), "brick%d.hostname", count); + if (!strcmp(server, priv->quotad_svc.name)) + ret = dict_set_nstrn(dict, key, keylen, "Quota Daemon", + SLEN("Quota Daemon")); +#ifdef BUILD_GNFS + else if (!strcmp(server, priv->nfs_svc.name)) + ret = dict_set_nstrn(dict, key, keylen, "NFS Server", + SLEN("NFS Server")); +#endif + else if (!strcmp(server, priv->bitd_svc.name)) + ret = dict_set_nstrn(dict, key, keylen, "Bitrot Daemon", + SLEN("Bitrot Daemon")); + else if (!strcmp(server, priv->scrub_svc.name)) + ret = dict_set_nstrn(dict, key, keylen, "Scrubber Daemon", + SLEN("Scrubber Daemon")); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + keylen = snprintf(key, sizeof(key), "brick%d.path", count); + ret = dict_set_dynstrn(dict, key, keylen, gf_strdup(uuid_utoa(MY_UUID))); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + +#ifdef BUILD_GNFS + /* Port is available only for the NFS server. + * Self-heal daemon doesn't provide any port for access + * by entities other than gluster. + */ + if (!strcmp(server, priv->nfs_svc.name)) { + if (dict_getn(vol_opts, "nfs.port", SLEN("nfs.port"))) { + ret = dict_get_int32n(vol_opts, "nfs.port", SLEN("nfs.port"), + &port); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=nfs.port", NULL); + goto out; + } + } else + port = GF_NFS3_PORT; + } +#endif + keylen = snprintf(key, sizeof(key), "brick%d.port", count); + ret = dict_set_int32n(dict, key, keylen, port); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + keylen = snprintf(key, sizeof(key), "brick%d.pid", count); + ret = dict_set_int32n(dict, key, keylen, pid); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + keylen = snprintf(key, sizeof(key), "brick%d.status", count); + ret = dict_set_int32n(dict, key, keylen, running); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + +out: + gf_msg_debug(THIS->name, 0, "Returning %d", ret); + return ret; +} + +int +glusterd_remote_hostname_get(rpcsvc_request_t *req, char *remote_host, int len) +{ + GF_ASSERT(req); + GF_ASSERT(remote_host); + GF_ASSERT(req->trans); + + char *name = NULL; + char *hostname = NULL; + char *tmp_host = NULL; + char *canon = NULL; + int ret = 0; + + name = req->trans->peerinfo.identifier; + tmp_host = gf_strdup(name); + if (tmp_host) + get_host_name(tmp_host, &hostname); + + GF_ASSERT(hostname); + if (!hostname) { + memset(remote_host, 0, len); + ret = -1; + goto out; + } + + if ((gf_get_hostname_from_ip(hostname, &canon) == 0) && canon) { + GF_FREE(tmp_host); + tmp_host = hostname = canon; + } + + (void)snprintf(remote_host, len, "%s", hostname); + +out: + GF_FREE(tmp_host); + return ret; +} + +gf_boolean_t +glusterd_are_all_volumes_stopped() +{ + glusterd_conf_t *priv = NULL; + xlator_t *this = NULL; + glusterd_volinfo_t *voliter = NULL; + + this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_ASSERT(priv); + + cds_list_for_each_entry(voliter, &priv->volumes, vol_list) + { + if (voliter->status == GLUSTERD_STATUS_STARTED) + return _gf_false; + } + + return _gf_true; +} + +gf_boolean_t +glusterd_all_shd_compatible_volumes_stopped() +{ + glusterd_conf_t *priv = NULL; + xlator_t *this = NULL; + glusterd_volinfo_t *voliter = NULL; + + this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_ASSERT(priv); + + cds_list_for_each_entry(voliter, &priv->volumes, vol_list) + { + if (!glusterd_is_shd_compatible_volume(voliter)) + continue; + if (voliter->status == GLUSTERD_STATUS_STARTED) + return _gf_false; + } + + return _gf_true; +} + +gf_boolean_t +glusterd_all_volumes_with_quota_stopped() +{ + glusterd_conf_t *priv = NULL; + xlator_t *this = NULL; + glusterd_volinfo_t *voliter = NULL; + + this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_ASSERT(priv); + + cds_list_for_each_entry(voliter, &priv->volumes, vol_list) + { + if (!glusterd_is_volume_quota_enabled(voliter)) + continue; + if (voliter->status == GLUSTERD_STATUS_STARTED) + return _gf_false; + } + + return _gf_true; +} + +gf_boolean_t +glusterd_have_volumes() +{ + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + gf_boolean_t volumes_exist = _gf_false; + + this = THIS; + GF_VALIDATE_OR_GOTO("glusterd", (this != NULL), out); + + priv = this->private; + GF_VALIDATE_OR_GOTO(this->name, (priv != NULL), out); + + volumes_exist = !cds_list_empty(&priv->volumes); +out: + return volumes_exist; +} + +int +glusterd_volume_count_get(void) +{ + glusterd_volinfo_t *tmp_volinfo = NULL; + int32_t ret = 0; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + + cds_list_for_each_entry(tmp_volinfo, &priv->volumes, vol_list) { ret++; } + + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +int +glusterd_brickinfo_get(uuid_t uuid, char *hostname, char *path, + glusterd_brickinfo_t **brickinfo) +{ + glusterd_volinfo_t *volinfo = NULL; + glusterd_conf_t *priv = NULL; + xlator_t *this = NULL; + int ret = -1; + + GF_ASSERT(path); + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + + cds_list_for_each_entry(volinfo, &priv->volumes, vol_list) + { + ret = glusterd_volume_brickinfo_get(uuid, hostname, path, volinfo, + brickinfo); + if (ret == 0) + /*Found*/ + goto out; + } +out: + return ret; +} + +static int32_t +my_callback(struct rpc_req *req, struct iovec *iov, int count, void *v_frame) +{ + call_frame_t *frame = v_frame; + glusterd_conf_t *conf = frame->this->private; + + if (GF_ATOMIC_DEC(conf->blockers) == 0) { + synccond_broadcast(&conf->cond_blockers); + } + + STACK_DESTROY(frame->root); + return 0; +} + +static int32_t +attach_brick_callback(struct rpc_req *req, struct iovec *iov, int count, + void *v_frame) +{ + call_frame_t *frame = v_frame; + glusterd_conf_t *conf = frame->this->private; + glusterd_brickinfo_t *brickinfo = frame->local; + glusterd_brickinfo_t *other_brick = frame->cookie; + glusterd_volinfo_t *volinfo = NULL; + xlator_t *this = THIS; + int ret = -1; + char pidfile1[PATH_MAX] = ""; + char pidfile2[PATH_MAX] = ""; + gf_getspec_rsp rsp = { + 0, + }; + int last_brick = -1; + + frame->local = NULL; + frame->cookie = NULL; + + if (!iov) { + gf_log(frame->this->name, GF_LOG_ERROR, "iov is NULL"); + ret = -1; + goto out; + } + + ret = xdr_to_generic(*iov, &rsp, (xdrproc_t)xdr_gf_getspec_rsp); + if (ret < 0) { + gf_log(frame->this->name, GF_LOG_ERROR, "XDR decoding error"); + ret = -1; + goto out; + } + + ret = glusterd_get_volinfo_from_brick(other_brick->path, &volinfo); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_VOLINFO_GET_FAIL, + "Failed to get volinfo" + " from brick(%s) so pidfile copying/unlink will fail", + other_brick->path); + goto out; + } + GLUSTERD_GET_BRICK_PIDFILE(pidfile1, volinfo, other_brick, conf); + volinfo = NULL; + + ret = glusterd_get_volinfo_from_brick(brickinfo->path, &volinfo); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_VOLINFO_GET_FAIL, + "Failed to get volinfo" + " from brick(%s) so pidfile copying/unlink will fail", + brickinfo->path); + goto out; + } + GLUSTERD_GET_BRICK_PIDFILE(pidfile2, volinfo, brickinfo, conf); + + if (rsp.op_ret == 0) { + brickinfo->port_registered = _gf_true; + + /* PID file is copied once brick has attached + successfully + */ + ret = glusterd_copy_file(pidfile1, pidfile2); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, ENOMEM, GD_MSG_NO_MEMORY, + "Could not copy file %s to %s", pidfile1, pidfile2); + goto out; + } + + brickinfo->status = GF_BRICK_STARTED; + brickinfo->rpc = rpc_clnt_ref(other_brick->rpc); + gf_log(THIS->name, GF_LOG_INFO, "brick %s is attached successfully", + brickinfo->path); + } else { + gf_log(THIS->name, GF_LOG_INFO, + "attach_brick failed pidfile" + " is %s for brick_path %s", + pidfile2, brickinfo->path); + brickinfo->port = 0; + brickinfo->status = GF_BRICK_STOPPED; + ret = glusterd_brick_process_remove_brick(brickinfo, &last_brick); + if (ret) + gf_msg_debug(this->name, 0, + "Couldn't remove brick from" + " brick process"); + LOCK(&volinfo->lock); + ret = glusterd_store_volinfo(volinfo, GLUSTERD_VOLINFO_VER_AC_NONE); + UNLOCK(&volinfo->lock); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_VOLINFO_SET_FAIL, + "Failed to store volinfo of " + "%s volume", + volinfo->volname); + goto out; + } + } +out: + if (GF_ATOMIC_DEC(conf->blockers) == 0) { + synccond_broadcast(&conf->cond_blockers); + } + STACK_DESTROY(frame->root); + return 0; +} + +int +send_attach_req(xlator_t *this, struct rpc_clnt *rpc, char *path, + glusterd_brickinfo_t *brickinfo, + glusterd_brickinfo_t *other_brick, int op) +{ + int ret = -1; + struct iobuf *iobuf = NULL; + struct iobref *iobref = NULL; + struct iovec iov = { + 0, + }; + ssize_t req_size = 0; + call_frame_t *frame = NULL; + gd1_mgmt_brick_op_req brick_req; + void *req = &brick_req; + void *errlbl = &&err; + struct rpc_clnt_connection *conn; + glusterd_conf_t *conf = this->private; + extern struct rpc_clnt_program gd_brick_prog; + fop_cbk_fn_t cbkfn = my_callback; + + if (!rpc) { + gf_log(this->name, GF_LOG_ERROR, "called with null rpc"); + return -1; + } + + conn = &rpc->conn; + if (!conn->connected || conn->disconnected) { + gf_log(this->name, GF_LOG_INFO, "not connected yet"); + return -1; + } + + brick_req.op = op; + brick_req.name = path; + brick_req.input.input_val = NULL; + brick_req.input.input_len = 0; + brick_req.dict.dict_val = NULL; + brick_req.dict.dict_len = 0; + + req_size = xdr_sizeof((xdrproc_t)xdr_gd1_mgmt_brick_op_req, req); + iobuf = iobuf_get2(rpc->ctx->iobuf_pool, req_size); + if (!iobuf) { + goto *errlbl; + } + errlbl = &&maybe_free_iobuf; + + iov.iov_base = iobuf->ptr; + iov.iov_len = iobuf_pagesize(iobuf); + + iobref = iobref_new(); + if (!iobref) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_NO_MEMORY, NULL); + goto *errlbl; + } + errlbl = &&free_iobref; + + frame = create_frame(this, this->ctx->pool); + if (!frame) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_FRAME_CREATE_FAIL, + NULL); + goto *errlbl; + } + + iobref_add(iobref, iobuf); + /* + * Drop our reference to the iobuf. The iobref should already have + * one after iobref_add, so when we unref that we'll free the iobuf as + * well. This allows us to pass just the iobref as frame->local. + */ + iobuf_unref(iobuf); + /* Set the pointer to null so we don't free it on a later error. */ + iobuf = NULL; + + /* Create the xdr payload */ + ret = xdr_serialize_generic(iov, req, (xdrproc_t)xdr_gd1_mgmt_brick_op_req); + if (ret == -1) { + goto *errlbl; + } + + iov.iov_len = ret; + + if (op == GLUSTERD_BRICK_ATTACH) { + frame->local = brickinfo; + frame->cookie = other_brick; + cbkfn = attach_brick_callback; + } + /* Send the msg */ + GF_ATOMIC_INC(conf->blockers); + ret = rpc_clnt_submit(rpc, &gd_brick_prog, op, cbkfn, &iov, 1, NULL, 0, + iobref, frame, NULL, 0, NULL, 0, NULL); + +free_iobref: + iobref_unref(iobref); +maybe_free_iobuf: + if (iobuf) { + iobuf_unref(iobuf); + } +err: + return ret; +} + +extern size_t +build_volfile_path(char *volume_id, char *path, size_t path_len, + char *trusted_str, dict_t *dict); + +static int +attach_brick(xlator_t *this, glusterd_brickinfo_t *brickinfo, + glusterd_brickinfo_t *other_brick, glusterd_volinfo_t *volinfo, + glusterd_volinfo_t *other_vol) +{ + glusterd_conf_t *conf = this->private; + char unslashed[PATH_MAX] = { + '\0', + }; + char full_id[PATH_MAX] = { + '\0', + }; + char path[PATH_MAX] = { + '\0', + }; + int ret = -1; + int tries; + rpc_clnt_t *rpc; + int32_t len; + + gf_log(this->name, GF_LOG_INFO, "add brick %s to existing process for %s", + brickinfo->path, other_brick->path); + + GLUSTERD_REMOVE_SLASH_FROM_PATH(brickinfo->path, unslashed); + + if (volinfo->is_snap_volume) { + len = snprintf(full_id, sizeof(full_id), "/%s/%s/%s/%s.%s.%s", + GLUSTERD_VOL_SNAP_DIR_PREFIX, + volinfo->snapshot->snapname, volinfo->volname, + volinfo->volname, brickinfo->hostname, unslashed); + } else { + len = snprintf(full_id, sizeof(full_id), "%s.%s.%s", volinfo->volname, + brickinfo->hostname, unslashed); + } + if ((len < 0) || (len >= sizeof(full_id))) { + goto out; + } + + (void)build_volfile_path(full_id, path, sizeof(path), NULL, NULL); + + for (tries = 15; tries > 0; --tries) { + rpc = rpc_clnt_ref(other_brick->rpc); + if (rpc) { + ret = send_attach_req(this, rpc, path, brickinfo, other_brick, + GLUSTERD_BRICK_ATTACH); + rpc_clnt_unref(rpc); + if (!ret) { + ret = pmap_registry_extend(this, other_brick->port, + brickinfo->path); + if (ret != 0) { + gf_log(this->name, GF_LOG_ERROR, + "adding brick to process failed"); + goto out; + } + brickinfo->port = other_brick->port; + ret = glusterd_brick_process_add_brick(brickinfo, other_brick); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, + GD_MSG_BRICKPROC_ADD_BRICK_FAILED, + "Adding brick %s:%s to brick " + "process failed", + brickinfo->hostname, brickinfo->path); + return ret; + } + return 0; + } + } + /* + * It might not actually be safe to manipulate the lock + * like this, but if we don't then the connection can + * never actually complete and retries are useless. + * Unfortunately, all of the alternatives (e.g. doing + * all of this in a separate thread) are much more + * complicated and risky. + * TBD: see if there's a better way + */ + synclock_unlock(&conf->big_lock); + synctask_sleep(1); + synclock_lock(&conf->big_lock); + } + +out: + gf_log(this->name, GF_LOG_WARNING, "attach failed for %s", brickinfo->path); + return ret; +} + +/* This name was just getting too long, hence the abbreviations. */ +static glusterd_brickinfo_t * +find_compat_brick_in_vol(glusterd_conf_t *conf, + glusterd_volinfo_t *srch_vol, /* volume to search */ + glusterd_volinfo_t *comp_vol, /* volume to compare */ + glusterd_brickinfo_t *brickinfo) +{ + xlator_t *this = THIS; + glusterd_brickinfo_t *other_brick = NULL; + glusterd_brick_proc_t *brick_proc = NULL; + char pidfile2[PATH_MAX] = ""; + int32_t pid2 = -1; + int16_t retries = 15; + int mux_limit = -1; + int ret = -1; + gf_boolean_t brick_status = _gf_false; + gf_boolean_t is_shared_storage = _gf_false; + + /* + * If comp_vol is provided, we have to check *volume* compatibility + * before we can check *brick* compatibility. + */ + if (comp_vol) { + /* + * We should not attach bricks of a normal volume to bricks + * of shared storage volume. + */ + if (!strcmp(srch_vol->volname, GLUSTER_SHARED_STORAGE)) + is_shared_storage = _gf_true; + + if (!strcmp(comp_vol->volname, GLUSTER_SHARED_STORAGE)) { + if (!is_shared_storage) + return NULL; + } else if (is_shared_storage) + return NULL; + + /* + * It's kind of a shame that we have to do this check in both + * directions, but an option might only exist on one of the two + * dictionaries and dict_foreach_match will only find that one. + */ + + gf_log(THIS->name, GF_LOG_DEBUG, "comparing options for %s and %s", + comp_vol->volname, srch_vol->volname); + + if (dict_foreach_match(comp_vol->dict, unsafe_option, NULL, + opts_mismatch, srch_vol->dict) < 0) { + gf_log(THIS->name, GF_LOG_DEBUG, "failure forward"); + return NULL; + } + + if (dict_foreach_match(srch_vol->dict, unsafe_option, NULL, + opts_mismatch, comp_vol->dict) < 0) { + gf_log(THIS->name, GF_LOG_DEBUG, "failure backward"); + return NULL; + } + + gf_log(THIS->name, GF_LOG_DEBUG, "all options match"); + } + + ret = get_mux_limit_per_process(&mux_limit); + if (ret) { + gf_msg_debug(THIS->name, 0, + "Retrieving brick mux " + "limit failed. Returning NULL"); + return NULL; + } + + cds_list_for_each_entry(other_brick, &srch_vol->bricks, brick_list) + { + if (other_brick == brickinfo) { + continue; + } + if (gf_uuid_compare(brickinfo->uuid, other_brick->uuid)) { + continue; + } + if (other_brick->status != GF_BRICK_STARTED && + other_brick->status != GF_BRICK_STARTING) { + continue; + } + + ret = glusterd_brick_proc_for_port(other_brick->port, &brick_proc); + if (ret) { + gf_msg_debug(THIS->name, 0, + "Couldn't get brick " + "process corresponding to brick %s:%s", + other_brick->hostname, other_brick->path); + continue; + } + + if (mux_limit != 0) { + if (brick_proc->brick_count >= mux_limit) + continue; + } else { + /* This means that the "cluster.max-bricks-per-process" + * options hasn't yet been explicitly set. Continue + * as if there's no limit set + */ + gf_msg(THIS->name, GF_LOG_WARNING, 0, GD_MSG_NO_MUX_LIMIT, + "cluster.max-bricks-per-process options isn't " + "set. Continuing with no limit set for " + "brick multiplexing."); + } + /* The first brick process might take some time to finish its + * handshake with glusterd and prepare the graph. We can't + * afford to send attach_req for other bricks till that time. + * brick process sends PMAP_SIGNIN event after processing the + * volfile and hence it's safe to assume that if glusterd has + * received a pmap signin request for the same brick, we are + * good for subsequent attach requests. + */ + retries = 15; + while (retries > 0) { + if (other_brick->port_registered) { + GLUSTERD_GET_BRICK_PIDFILE(pidfile2, srch_vol, other_brick, + conf); + if (sys_access(pidfile2, F_OK) == 0 && + gf_is_service_running(pidfile2, &pid2)) { + gf_msg_debug(this->name, 0, + "brick %s is running as a pid %d ", + other_brick->path, pid2); + brick_status = _gf_true; + break; + } + } + + synclock_unlock(&conf->big_lock); + gf_msg_debug(this->name, 0, + "brick %s is still" + " starting, waiting for 2 seconds ", + other_brick->path); + synctask_sleep(2); + synclock_lock(&conf->big_lock); + retries--; + } + + if (!brick_status) { + gf_log(this->name, GF_LOG_INFO, + "brick has not come up so cleaning up dead brick %s:%s", + other_brick->hostname, other_brick->path); + other_brick->status = GF_BRICK_STOPPED; + if (pidfile2[0]) + sys_unlink(pidfile2); + continue; + } + return other_brick; + } + + return NULL; +} + +static glusterd_brickinfo_t * +find_compatible_brick(glusterd_conf_t *conf, glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, + glusterd_volinfo_t **other_vol_p) +{ + glusterd_brickinfo_t *other_brick = NULL; + glusterd_volinfo_t *other_vol = NULL; + glusterd_snap_t *snap = NULL; + + /* Just return NULL here if multiplexing is disabled. */ + if (!is_brick_mx_enabled()) { + return NULL; + } + + other_brick = find_compat_brick_in_vol(conf, volinfo, NULL, brickinfo); + if (other_brick) { + *other_vol_p = volinfo; + return other_brick; + } + + /* + * This check is necessary because changes to a volume's + * transport options aren't propagated to snapshots. Such a + * change might break compatibility between the two, but we + * have no way to "evict" a brick from the process it's + * currently in. If we keep it separate from the start, we + * avoid the problem. Note that snapshot bricks can still be + * colocated with one another, even if they're for different + * volumes, because the only thing likely to differ is their + * auth options and those are not a factor in determining + * compatibility. + * + * The very same immutability of snapshot bricks' transport + * options, which can make them incompatible with their parent + * volumes, ensures that once-compatible snapshot bricks will + * remain compatible. However, the same is not true for bricks + * belonging to two non-snapshot volumes. In that case, a + * change to one might break compatibility and require them to + * be separated, which is not yet done. + * + * TBD: address the option-change issue for non-snapshot bricks + */ + if (!volinfo->is_snap_volume) { + cds_list_for_each_entry(other_vol, &conf->volumes, vol_list) + { + if (other_vol == volinfo) { + continue; + } + other_brick = find_compat_brick_in_vol(conf, other_vol, volinfo, + brickinfo); + if (other_brick) { + *other_vol_p = other_vol; + return other_brick; + } + } + } else { + cds_list_for_each_entry(snap, &conf->snapshots, snap_list) + { + cds_list_for_each_entry(other_vol, &snap->volumes, vol_list) + { + if (other_vol == volinfo) { + continue; + } + other_brick = find_compat_brick_in_vol(conf, other_vol, volinfo, + brickinfo); + if (other_brick) { + *other_vol_p = other_vol; + return other_brick; + } + } + } + } + + return NULL; +} + +/* Below function is use to populate sockpath based on passed pid + value as a argument after check the value from proc and also + check if passed pid is match with running glusterfs process +*/ + +int +glusterd_get_sock_from_brick_pid(int pid, char *sockpath, size_t len) +{ + char buf[1024] = ""; + char cmdline[2048] = ""; + xlator_t *this = NULL; + int fd = -1; + int i = 0, j = 0; + char *ptr = NULL; + char *brptr = NULL; + char tmpsockpath[PATH_MAX] = ""; + size_t blen = 0; + int ret = -1; + + this = THIS; + GF_ASSERT(this); + +#ifdef __FreeBSD__ + blen = sizeof(buf); + int mib[4]; + + mib[0] = CTL_KERN; + mib[1] = KERN_PROC; + mib[2] = KERN_PROC_ARGS; + mib[3] = pid; + + if (sys_sysctl(mib, 4, buf, &blen, NULL, blen) != 0) { + gf_log(this->name, GF_LOG_ERROR, "brick process %d is not running", + pid); + return ret; + } +#else + char fname[128] = ""; + snprintf(fname, sizeof(fname), "/proc/%d/cmdline", pid); + + if (sys_access(fname, R_OK) != 0) { + gf_log(this->name, GF_LOG_ERROR, "brick process %d is not running", + pid); + return ret; + } + + fd = open(fname, O_RDONLY); + if (fd != -1) { + blen = (int)sys_read(fd, buf, 1024); + } else { + gf_log(this->name, GF_LOG_ERROR, "open failed %s to open a file %s", + strerror(errno), fname); + return ret; + } +#endif + + /* convert cmdline to single string */ + for (i = 0, j = 0; i < blen; i++) { + if (buf[i] == '\0') + cmdline[j++] = ' '; + else if (buf[i] < 32 || buf[i] > 126) /* remove control char */ + continue; + else if (buf[i] == '"' || buf[i] == '\\') { + cmdline[j++] = '\\'; + cmdline[j++] = buf[i]; + } else { + cmdline[j++] = buf[i]; + } + } + cmdline[j] = '\0'; + if (fd) + sys_close(fd); + if (!strstr(cmdline, "glusterfs")) + return ret; + + ptr = strstr(cmdline, "-S "); + if (!ptr) + return ret; + ptr = strchr(ptr, '/'); + if (!ptr) + return ret; + brptr = strstr(ptr, "--brick-name"); + if (!brptr) + return ret; + i = 0; + + while (ptr < brptr) { + if (*ptr != 32) + tmpsockpath[i++] = *ptr; + ptr++; + } + + if (tmpsockpath[0]) { + strncpy(sockpath, tmpsockpath, i); + ret = 0; + } + + return ret; +} + +char * +search_brick_path_from_proc(pid_t brick_pid, char *brickpath) +{ + char *brick_path = NULL; +#ifdef __FreeBSD__ + struct filestat *fst; + struct procstat *ps; + struct kinfo_proc *kp; + struct filestat_list *head; + + ps = procstat_open_sysctl(); + if (ps == NULL) + goto out; + + kp = kinfo_getproc(brick_pid); + if (kp == NULL) + goto out; + + head = procstat_getfiles(ps, (void *)kp, 0); + if (head == NULL) + goto out; + + STAILQ_FOREACH(fst, head, next) + { + if (fst->fs_fd < 0) + continue; + + if (!strcmp(fst->fs_path, brickpath)) { + brick_path = gf_strdup(fst->fs_path); + break; + } + } + +out: + if (head != NULL) + procstat_freefiles(ps, head); + if (kp != NULL) + free(kp); + procstat_close(ps); +#else + struct dirent *dp = NULL; + DIR *dirp = NULL; + size_t len = 0; + int fd = -1; + char path[PATH_MAX] = ""; + struct dirent scratch[2] = { + { + 0, + }, + }; + + if (!brickpath) + goto out; + + len = sprintf(path, "/proc/%d/fd/", brick_pid); + if (len >= (sizeof(path) - 2)) + goto out; + + dirp = sys_opendir(path); + if (!dirp) + goto out; + + fd = dirfd(dirp); + if (fd < 0) + goto out; + + while ((dp = sys_readdir(dirp, scratch))) { + if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) + continue; + + /* check for non numerical descriptors */ + if (!strtol(dp->d_name, (char **)NULL, 10)) + continue; + + len = readlinkat(fd, dp->d_name, path, sizeof(path) - 1); + /* TODO: handle len == -1 -> error condition in readlinkat */ + if (len > 1) { + path[len] = '\0'; + if (!strcmp(path, brickpath)) { + brick_path = gf_strdup(path); + break; + } + } + } +out: + if (dirp) + sys_closedir(dirp); +#endif + return brick_path; +} + +int +glusterd_brick_start(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, gf_boolean_t wait, + gf_boolean_t only_connect) +{ + int ret = -1; + xlator_t *this = NULL; + glusterd_brickinfo_t *other_brick; + glusterd_conf_t *conf = NULL; + int32_t pid = -1; + char pidfile[PATH_MAX] = ""; + char socketpath[PATH_MAX] = ""; + char *brickpath = NULL; + glusterd_volinfo_t *other_vol; + gf_boolean_t is_service_running = _gf_false; + uuid_t volid = { + 0, + }; + ssize_t size = -1; + + this = THIS; + GF_ASSERT(this); + conf = this->private; + + if ((!brickinfo) || (!volinfo)) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_INVALID_ARGUMENT, NULL); + goto out; + } + + if (gf_uuid_is_null(brickinfo->uuid)) { + ret = glusterd_resolve_brick(brickinfo); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_RESOLVE_BRICK_FAIL, + FMTSTR_RESOLVE_BRICK, brickinfo->hostname, brickinfo->path); + gf_event(EVENT_BRICKPATH_RESOLVE_FAILED, + "peer=%s;volume=%s;brick=%s", brickinfo->hostname, + volinfo->volname, brickinfo->path); + goto out; + } + } + + if (gf_uuid_compare(brickinfo->uuid, MY_UUID)) { + ret = 0; + goto out; + } + + /* If a trigger to start the brick is already initiated then no need for + * a reattempt as it's an overkill. With glusterd_brick_start () + * function being used in multiple places, when glusterd restarts we see + * three different triggers for an attempt to start the brick process + * due to the quorum handling code in glusterd_friend_sm. + */ + if (brickinfo->status == GF_BRICK_STARTING || brickinfo->start_triggered || + GF_ATOMIC_GET(volinfo->volpeerupdate)) { + gf_msg_debug(this->name, 0, + "brick %s is already in starting " + "phase", + brickinfo->path); + ret = 0; + goto out; + } + if (!only_connect) + brickinfo->start_triggered = _gf_true; + + GLUSTERD_GET_BRICK_PIDFILE(pidfile, volinfo, brickinfo, conf); + + /* Compare volume-id xattr is helpful to ensure the existence of a + brick_root path before the start/attach a brick + */ + size = sys_lgetxattr(brickinfo->path, GF_XATTR_VOL_ID_KEY, volid, 16); + if (size != 16) { + gf_log(this->name, GF_LOG_ERROR, + "Missing %s extended attribute on brick root (%s)," + " brick is deemed not to be a part of the volume (%s) ", + GF_XATTR_VOL_ID_KEY, brickinfo->path, volinfo->volname); + goto out; + } + + if (strncmp(uuid_utoa(volinfo->volume_id), uuid_utoa(volid), + GF_UUID_BUF_SIZE)) { + gf_log(this->name, GF_LOG_ERROR, + "Mismatching %s extended attribute on brick root (%s)," + " brick is deemed not to be a part of the volume (%s)", + GF_XATTR_VOL_ID_KEY, brickinfo->path, volinfo->volname); + goto out; + } + is_service_running = gf_is_service_running(pidfile, &pid); + if (is_service_running) { + if (is_brick_mx_enabled()) { + brickpath = search_brick_path_from_proc(pid, brickinfo->path); + if (!brickpath) { + if (only_connect) + return 0; + gf_log(this->name, GF_LOG_INFO, + "Either pid %d is not running or brick" + " path %s is not consumed so cleanup pidfile", + pid, brickinfo->path); + /* brick isn't running,so unlink stale pidfile + * if any. + */ + if (sys_access(pidfile, R_OK) == 0) { + sys_unlink(pidfile); + } + goto run; + } + GF_FREE(brickpath); + ret = glusterd_get_sock_from_brick_pid(pid, socketpath, + sizeof(socketpath)); + if (ret) { + if (only_connect) + return 0; + gf_log(this->name, GF_LOG_INFO, + "Either pid %d is not running or does " + "not match with any running brick " + "processes", + pid); + /* Fetch unix socket is failed so unlink pidfile */ + if (sys_access(pidfile, R_OK) == 0) { + sys_unlink(pidfile); + } + goto run; + } + } + if (brickinfo->status != GF_BRICK_STARTING && + brickinfo->status != GF_BRICK_STARTED) { + gf_log(this->name, GF_LOG_INFO, + "discovered already-running brick %s", brickinfo->path); + (void)pmap_registry_bind(this, brickinfo->port, brickinfo->path, + GF_PMAP_PORT_BRICKSERVER, NULL); + brickinfo->port_registered = _gf_true; + /* + * This will unfortunately result in a separate RPC + * connection per brick, even though they're all in + * the same process. It works, but it would be nicer + * if we could find a pre-existing connection to that + * same port (on another brick) and re-use that. + * TBD: re-use RPC connection across bricks + */ + if (!is_brick_mx_enabled()) { + glusterd_set_brick_socket_filepath( + volinfo, brickinfo, socketpath, sizeof(socketpath)); + } + gf_log(this->name, GF_LOG_DEBUG, + "Using %s as sockfile for brick %s of volume %s ", + socketpath, brickinfo->path, volinfo->volname); + + (void)glusterd_brick_connect(volinfo, brickinfo, socketpath); + + ret = glusterd_brick_process_add_brick(brickinfo, NULL); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, + GD_MSG_BRICKPROC_ADD_BRICK_FAILED, + "Adding brick %s:%s to brick process " + "failed.", + brickinfo->hostname, brickinfo->path); + goto out; + } + /* We need to set the status back to STARTING so that + * while the other (re)start brick requests come in for + * other bricks, this brick can be considered as + * compatible. + */ + brickinfo->status = GF_BRICK_STARTING; + } + return 0; + } + if (only_connect) + return 0; + +run: + ret = _mk_rundir_p(volinfo); + if (ret) + goto out; + + other_brick = find_compatible_brick(conf, volinfo, brickinfo, &other_vol); + if (other_brick) { + /* mark the brick to starting as send_attach_req might take few + * iterations to successfully attach the brick and we don't want + * to get into a state where another needless trigger to start + * the brick is processed + */ + brickinfo->status = GF_BRICK_STARTING; + ret = attach_brick(this, brickinfo, other_brick, volinfo, other_vol); + if (ret == 0) { + goto out; + } + /* Attach_brick is failed so unlink pidfile */ + if (sys_access(pidfile, R_OK) == 0) { + sys_unlink(pidfile); + } + } + + /* + * This hack is necessary because our brick-process management is a + * total nightmare. We expect a brick process's socket and pid files + * to be ready *immediately* after we start it. Ditto for it calling + * back to bind its port. Unfortunately, none of that is realistic. + * Any process takes non-zero time to start up. This has *always* been + * racy and unsafe; it just became more visible with multiplexing. + * + * The right fix would be to do all of this setup *in the parent*, + * which would include (among other things) getting the PID back from + * the "runner" code. That's all prohibitively difficult and risky. + * To work around the more immediate problems, we create a stub pidfile + * here to let gf_is_service_running know that we expect the process to + * be there shortly, and then it gets filled in with a real PID when + * the process does finish starting up. + * + * TBD: pray for GlusterD 2 to be ready soon. + */ + gf_log(this->name, GF_LOG_INFO, + "starting a fresh brick process for " + "brick %s", + brickinfo->path); + ret = glusterd_volume_start_glusterfs(volinfo, brickinfo, wait); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICK_DISCONNECTED, + "Unable to start brick %s:%s", brickinfo->hostname, + brickinfo->path); + gf_event(EVENT_BRICK_START_FAILED, "peer=%s;volume=%s;brick=%s", + brickinfo->hostname, volinfo->volname, brickinfo->path); + goto out; + } + +out: + if (ret && brickinfo) { + brickinfo->start_triggered = _gf_false; + } + gf_msg_debug(this->name, 0, "returning %d ", ret); + return ret; +} + +int +glusterd_restart_bricks(void *opaque) +{ + int ret = 0; + glusterd_volinfo_t *volinfo = NULL; + glusterd_brickinfo_t *brickinfo = NULL; + glusterd_snap_t *snap = NULL; + gf_boolean_t start_svcs = _gf_false; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + int active_count = 0; + int quorum_count = 0; + gf_boolean_t node_quorum = _gf_false; + + this = THIS; + GF_VALIDATE_OR_GOTO("glusterd", this, return_block); + + conf = this->private; + GF_VALIDATE_OR_GOTO(this->name, conf, return_block); + + synclock_lock(&conf->big_lock); + + /* We need to ensure that restarting the bricks during glusterd restart + * shouldn't race with the import volume thread (refer + * glusterd_compare_friend_data ()) + */ + while (conf->restart_bricks) { + synccond_wait(&conf->cond_restart_bricks, &conf->big_lock); + } + conf->restart_bricks = _gf_true; + + GF_ATOMIC_INC(conf->blockers); + ret = glusterd_get_quorum_cluster_counts(this, &active_count, + &quorum_count); + if (ret) + goto out; + + if (does_quorum_meet(active_count, quorum_count)) + node_quorum = _gf_true; + + cds_list_for_each_entry(volinfo, &conf->volumes, vol_list) + { + if (volinfo->status != GLUSTERD_STATUS_STARTED) { + continue; + } + gf_msg_debug(this->name, 0, "starting the volume %s", volinfo->volname); + + /* Check the quorum, if quorum is not met, don't start the + bricks. Stop bricks in case they are running. + */ + ret = check_quorum_for_brick_start(volinfo, node_quorum); + if (ret == 0) { + gf_msg(this->name, GF_LOG_INFO, 0, GD_MSG_SERVER_QUORUM_NOT_MET, + "Skipping brick " + "restart for volume %s as quorum is not met", + volinfo->volname); + (void)glusterd_stop_bricks(volinfo); + continue; + } else if (ret == 2 && conf->restart_done == _gf_true) { + /* If glusterd has been restarted and quorum is not + * applicable then do not restart the bricks as this + * might start bricks brought down purposely, say for + * maintenance + */ + continue; + } else { + start_svcs = _gf_true; + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + if (!brickinfo->start_triggered) { + pthread_mutex_lock(&brickinfo->restart_mutex); + { + glusterd_brick_start(volinfo, brickinfo, _gf_false, + _gf_false); + } + pthread_mutex_unlock(&brickinfo->restart_mutex); + } + } + ret = glusterd_store_volinfo(volinfo, GLUSTERD_VOLINFO_VER_AC_NONE); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_VOLINFO_STORE_FAIL, + "Failed to " + "write volinfo for volume %s", + volinfo->volname); + goto out; + } + } + } + + cds_list_for_each_entry(snap, &conf->snapshots, snap_list) + { + cds_list_for_each_entry(volinfo, &snap->volumes, vol_list) + { + if (volinfo->status != GLUSTERD_STATUS_STARTED) + continue; + /* Check the quorum, if quorum is not met, don't start + * the bricks + */ + ret = check_quorum_for_brick_start(volinfo, node_quorum); + if (ret == 0) { + gf_msg(this->name, GF_LOG_INFO, 0, GD_MSG_SERVER_QUORUM_NOT_MET, + "Skipping" + " brick restart for volume %s as " + "quorum is not met", + volinfo->volname); + continue; + } + start_svcs = _gf_true; + gf_msg_debug(this->name, 0, + "starting the snap " + "volume %s", + volinfo->volname); + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + if (!brickinfo->start_triggered) { + pthread_mutex_lock(&brickinfo->restart_mutex); + { + /* coverity[SLEEP] */ + glusterd_brick_start(volinfo, brickinfo, _gf_false, + _gf_false); + } + pthread_mutex_unlock(&brickinfo->restart_mutex); + } + } + ret = glusterd_store_volinfo(volinfo, GLUSTERD_VOLINFO_VER_AC_NONE); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_VOLINFO_STORE_FAIL, + "Failed to " + "write volinfo for volume %s", + volinfo->volname); + goto out; + } + } + } + if (start_svcs == _gf_true) { + glusterd_svcs_manager(NULL); + } + + ret = 0; + +out: + conf->restart_done = _gf_true; + conf->restart_bricks = _gf_false; + if (GF_ATOMIC_DEC(conf->blockers) == 0) { + synccond_broadcast(&conf->cond_blockers); + } + synccond_broadcast(&conf->cond_restart_bricks); + +return_block: + return ret; +} + +int +_local_gsyncd_start(dict_t *this, char *key, data_t *value, void *data) +{ + char *path_list = NULL; + char *slave = NULL; + char *slave_url = NULL; + char *slave_vol = NULL; + char *slave_host = NULL; + char *statefile = NULL; + char buf[1024] = "faulty"; + int ret = 0; + int op_ret = 0; + int ret_status = 0; + char uuid_str[64] = ""; + glusterd_volinfo_t *volinfo = NULL; + char confpath[PATH_MAX] = ""; + char *op_errstr = NULL; + glusterd_conf_t *priv = NULL; + gf_boolean_t is_template_in_use = _gf_false; + gf_boolean_t is_paused = _gf_false; + char key1[1024] = ""; + xlator_t *this1 = NULL; + + this1 = THIS; + GF_ASSERT(this1); + priv = this1->private; + GF_ASSERT(priv); + GF_ASSERT(data); + + volinfo = data; + slave = strchr(value->data, ':'); + if (slave) + slave++; + else + return 0; + + (void)snprintf(uuid_str, sizeof(uuid_str), "%s", (char *)value->data); + + /* Getting Local Brickpaths */ + ret = glusterd_get_local_brickpaths(volinfo, &path_list); + + /*Generating the conf file path needed by gsyncd */ + ret = glusterd_get_slave_info(slave, &slave_url, &slave_host, &slave_vol, + &op_errstr); + if (ret) { + gf_msg(this1->name, GF_LOG_ERROR, 0, GD_MSG_SLAVEINFO_FETCH_ERROR, + "Unable to fetch slave details."); + ret = -1; + goto out; + } + + ret = snprintf(confpath, sizeof(confpath) - 1, + "%s/" GEOREP "/%s_%s_%s/gsyncd.conf", priv->workdir, + volinfo->volname, slave_host, slave_vol); + confpath[ret] = '\0'; + + /* Fetching the last status of the node */ + ret = glusterd_get_statefile_name(volinfo, slave, confpath, &statefile, + &is_template_in_use); + if (ret) { + if (!strstr(slave, "::")) + gf_msg(this1->name, GF_LOG_INFO, 0, GD_MSG_SLAVE_URL_INVALID, + "%s is not a valid slave url.", slave); + else + gf_msg(this1->name, GF_LOG_INFO, 0, + GD_MSG_GET_STATEFILE_NAME_FAILED, + "Unable to get" + " statefile's name"); + goto out; + } + + /* If state-file entry is missing from the config file, + * do not start gsyncd on restart */ + if (is_template_in_use) { + gf_msg(this1->name, GF_LOG_INFO, 0, GD_MSG_NO_STATEFILE_ENTRY, + "state-file entry is missing in config file." + "Not Restarting"); + goto out; + } + + is_template_in_use = _gf_false; + + ret = gsync_status(volinfo->volname, slave, confpath, &ret_status, + &is_template_in_use); + if (ret == -1) { + gf_msg(this1->name, GF_LOG_INFO, 0, GD_MSG_GSYNC_VALIDATION_FAIL, + GEOREP " start option validation failed "); + ret = 0; + goto out; + } + + if (is_template_in_use == _gf_true) { + gf_msg(this1->name, GF_LOG_INFO, 0, GD_MSG_PIDFILE_NOT_FOUND, + "pid-file entry is missing in config file." + "Not Restarting"); + ret = 0; + goto out; + } + + ret = glusterd_gsync_read_frm_status(statefile, buf, sizeof(buf)); + if (ret <= 0) { + gf_msg(this1->name, GF_LOG_ERROR, 0, GD_MSG_STAT_FILE_READ_FAILED, + "Unable to read the status"); + goto out; + } + + /* Form key1 which is "<user@><slave_host>::<slavevol>" */ + snprintf(key1, sizeof(key1), "%s::%s", slave_url, slave_vol); + + /* Looks for the last status, to find if the session was running + * when the node went down. If the session was just created or + * stopped, do not restart the geo-rep session */ + if ((!strcmp(buf, "Created")) || (!strcmp(buf, "Stopped"))) { + gf_msg(this1->name, GF_LOG_INFO, 0, GD_MSG_GEO_REP_START_FAILED, + "Geo-Rep Session was not started between " + "%s and %s::%s. Not Restarting", + volinfo->volname, slave_url, slave_vol); + goto out; + } else if (strstr(buf, "Paused")) { + is_paused = _gf_true; + } else if ((!strcmp(buf, "Config Corrupted"))) { + gf_msg(this1->name, GF_LOG_INFO, 0, GD_MSG_RECOVERING_CORRUPT_CONF, + "Recovering from a corrupted config. " + "Not Restarting. Use start (force) to " + "start the session between %s and %s::%s.", + volinfo->volname, slave_url, slave_vol); + goto out; + } + + if (is_paused) { + glusterd_start_gsync(volinfo, slave, path_list, confpath, uuid_str, + NULL, _gf_true); + } else { + /* Add slave to the dict indicating geo-rep session is running*/ + ret = dict_set_dynstr_with_alloc(volinfo->gsync_active_slaves, key1, + "running"); + if (ret) { + gf_msg(this1->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Unable to set key:%s" + " value:running in the dict", + key1); + goto out; + } + ret = glusterd_start_gsync(volinfo, slave, path_list, confpath, + uuid_str, NULL, _gf_false); + if (ret) + dict_del(volinfo->gsync_active_slaves, key1); + } + +out: + if (statefile) + GF_FREE(statefile); + if (slave_url) + GF_FREE(slave_url); + + if (is_template_in_use) { + op_ret = glusterd_create_status_file( + volinfo->volname, slave, slave_host, slave_vol, "Config Corrupted"); + if (op_ret) { + gf_msg(this1->name, GF_LOG_ERROR, 0, + GD_MSG_STATUSFILE_CREATE_FAILED, + "Unable to create status file" + ". Error : %s", + strerror(errno)); + ret = op_ret; + } + } + if (slave_vol) + GF_FREE(slave_vol); + GF_FREE(path_list); + GF_FREE(op_errstr); + + return ret; +} + +int +glusterd_volume_restart_gsyncds(glusterd_volinfo_t *volinfo) +{ + GF_ASSERT(volinfo); + + dict_foreach(volinfo->gsync_slaves, _local_gsyncd_start, volinfo); + return 0; +} + +int +glusterd_restart_gsyncds(glusterd_conf_t *conf) +{ + glusterd_volinfo_t *volinfo = NULL; + int ret = 0; + + cds_list_for_each_entry(volinfo, &conf->volumes, vol_list) + { + glusterd_volume_restart_gsyncds(volinfo); + } + return ret; +} + +int +glusterd_calc_dist_leaf_count(int rcount, int scount) +{ + return (rcount ? rcount : 1) * (scount ? scount : 1); +} + +int +glusterd_get_dist_leaf_count(glusterd_volinfo_t *volinfo) +{ + int rcount = volinfo->replica_count; + int scount = volinfo->stripe_count; + + if (volinfo->type == GF_CLUSTER_TYPE_DISPERSE) + return volinfo->disperse_count; + + return glusterd_calc_dist_leaf_count(rcount, scount); +} + +int +glusterd_get_brickinfo(xlator_t *this, const char *brickname, int port, + glusterd_brickinfo_t **brickinfo) +{ + glusterd_conf_t *priv = NULL; + glusterd_volinfo_t *volinfo = NULL; + glusterd_brickinfo_t *tmpbrkinfo = NULL; + glusterd_snap_t *snap = NULL; + int ret = -1; + + GF_ASSERT(brickname); + GF_ASSERT(this); + + priv = this->private; + cds_list_for_each_entry(volinfo, &priv->volumes, vol_list) + { + cds_list_for_each_entry(tmpbrkinfo, &volinfo->bricks, brick_list) + { + if (gf_uuid_compare(tmpbrkinfo->uuid, MY_UUID)) + continue; + if (!strcmp(tmpbrkinfo->path, brickname) && + (tmpbrkinfo->port == port)) { + *brickinfo = tmpbrkinfo; + return 0; + } + } + } + /* In case normal volume is not found, check for snapshot volumes */ + cds_list_for_each_entry(snap, &priv->snapshots, snap_list) + { + cds_list_for_each_entry(volinfo, &snap->volumes, vol_list) + { + cds_list_for_each_entry(tmpbrkinfo, &volinfo->bricks, brick_list) + { + if (gf_uuid_compare(tmpbrkinfo->uuid, MY_UUID)) + continue; + if (!strcmp(tmpbrkinfo->path, brickname)) { + *brickinfo = tmpbrkinfo; + return 0; + } + } + } + } + + return ret; +} + +glusterd_brickinfo_t * +glusterd_get_brickinfo_by_position(glusterd_volinfo_t *volinfo, uint32_t pos) +{ + glusterd_brickinfo_t *tmpbrkinfo = NULL; + + cds_list_for_each_entry(tmpbrkinfo, &volinfo->bricks, brick_list) + { + if (pos == 0) + return tmpbrkinfo; + pos--; + } + return NULL; +} + +void +glusterd_set_brick_status(glusterd_brickinfo_t *brickinfo, + gf_brick_status_t status) +{ + GF_ASSERT(brickinfo); + brickinfo->status = status; + if (GF_BRICK_STARTED == status) { + gf_msg_debug("glusterd", 0, + "Setting brick %s:%s status " + "to started", + brickinfo->hostname, brickinfo->path); + } else { + gf_msg_debug("glusterd", 0, + "Setting brick %s:%s status " + "to stopped", + brickinfo->hostname, brickinfo->path); + } +} + +gf_boolean_t +glusterd_is_brick_started(glusterd_brickinfo_t *brickinfo) +{ + GF_ASSERT(brickinfo); + return (brickinfo->status == GF_BRICK_STARTED); +} + +int +glusterd_friend_brick_belongs(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, void *uuid) +{ + int ret = -1; + + GF_ASSERT(volinfo); + GF_ASSERT(brickinfo); + GF_ASSERT(uuid); + + if (gf_uuid_is_null(brickinfo->uuid)) { + ret = glusterd_resolve_brick(brickinfo); + if (ret) { + GF_ASSERT(0); + goto out; + } + } + if (!gf_uuid_compare(brickinfo->uuid, *((uuid_t *)uuid))) + return 0; +out: + return -1; +} + +int +glusterd_get_brick_root(char *path, char **mount_point) +{ + char *ptr = NULL; + char *mnt_pt = NULL; + struct stat brickstat = {0}; + struct stat buf = {0}; + xlator_t *this = THIS; + GF_ASSERT(this); + + if (!path) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_INVALID_ARGUMENT, NULL); + goto err; + } + mnt_pt = gf_strdup(path); + if (!mnt_pt) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_INVALID_ARGUMENT, NULL); + goto err; + } + if (sys_stat(mnt_pt, &brickstat)) + goto err; + + while ((ptr = strrchr(mnt_pt, '/')) && ptr != mnt_pt) { + *ptr = '\0'; + if (sys_stat(mnt_pt, &buf)) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Error in stat=%s", strerror(errno), NULL); + goto err; + } + + if (brickstat.st_dev != buf.st_dev) { + *ptr = '/'; + break; + } + } + + if (ptr == mnt_pt) { + if (sys_stat("/", &buf)) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Error in stat=%s", strerror(errno), NULL); + goto err; + } + if (brickstat.st_dev == buf.st_dev) + strcpy(mnt_pt, "/"); + } + + *mount_point = mnt_pt; + return 0; + +err: + GF_FREE(mnt_pt); + return -1; +} + +static char * +glusterd_parse_inode_size(char *stream, char *pattern) +{ + char *needle = NULL; + char *trail = NULL; + + needle = strstr(stream, pattern); + if (!needle) + goto out; + + needle = nwstrtail(needle, pattern); + + trail = needle; + while (trail && isdigit(*trail)) + trail++; + if (trail) + *trail = '\0'; + +out: + return needle; +} + +static struct fs_info { + char *fs_type_name; + char *fs_tool_name; + char *fs_tool_arg; + char *fs_tool_pattern; + char *fs_tool_pkg; +} glusterd_fs[] = {{"xfs", "xfs_info", NULL, "isize=", "xfsprogs"}, + {"ext3", "tune2fs", "-l", "Inode size:", "e2fsprogs"}, + {"ext4", "tune2fs", "-l", "Inode size:", "e2fsprogs"}, + {"btrfs", NULL, NULL, NULL, NULL}, + {"zfs", NULL, NULL, NULL, NULL}, + {NULL, NULL, NULL, NULL, NULL}}; + +static int +glusterd_add_inode_size_to_dict(dict_t *dict, int count) +{ + int ret = -1; + char key[64]; + char buffer[4096] = ""; + char *device = NULL; + char *fs_name = NULL; + char *cur_word = NULL; + char *trail = NULL; + runner_t runner = { + 0, + }; + struct fs_info *fs = NULL; + static dict_t *cached_fs = NULL; + xlator_t *this = THIS; + GF_ASSERT(this); + + ret = snprintf(key, sizeof(key), "brick%d.device", count); + ret = dict_get_strn(dict, key, ret, &device); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + if (cached_fs) { + if (dict_get_str(cached_fs, device, &cur_word) == 0) { + goto cached; + } + } else { + cached_fs = dict_new(); + } + + ret = snprintf(key, sizeof(key), "brick%d.fs_name", count); + ret = dict_get_strn(dict, key, ret, &fs_name); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + runinit(&runner); + runner_redir(&runner, STDOUT_FILENO, RUN_PIPE); + + for (fs = glusterd_fs; fs->fs_type_name; fs++) { + if (strcmp(fs_name, fs->fs_type_name) == 0) { + if (!fs->fs_tool_name) { + /* dynamic inodes */ + gf_smsg(this->name, GF_LOG_INFO, 0, GD_MSG_INODE_SIZE_GET_FAIL, + "The brick on device uses dynamic inode sizes", + "Device=%s (%s)", device, fs_name, NULL); + cur_word = "N/A"; + goto cached; + } + runner_add_arg(&runner, fs->fs_tool_name); + break; + } + } + + if (runner.argv[0]) { + if (fs->fs_tool_arg) + runner_add_arg(&runner, fs->fs_tool_arg); + runner_add_arg(&runner, device); + } else { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_INODE_SIZE_GET_FAIL, + "Could not find tool to get inode size for device", "Tool=%s", + fs->fs_tool_name, "Device=%s (%s)", device, fs_name, + "Missing package=%s ?", fs->fs_tool_pkg, NULL); + goto out; + } + + ret = runner_start(&runner); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_CMD_EXEC_FAIL, + "Failed to execute \"%s\"", fs->fs_tool_name, NULL); + /* + * Runner_start might return an error after the child has + * been forked, e.g. if the program isn't there. In that + * case, we still need to call runner_end to reap the + * child and free resources. Fortunately, that seems to + * be harmless for other kinds of failures. + */ + (void)runner_end(&runner); + goto out; + } + + for (;;) { + if (fgets(buffer, sizeof(buffer), + runner_chio(&runner, STDOUT_FILENO)) == NULL) + break; + trail = strrchr(buffer, '\n'); + if (trail) + *trail = '\0'; + + cur_word = glusterd_parse_inode_size(buffer, fs->fs_tool_pattern); + + if (cur_word) + break; + } + + ret = runner_end(&runner); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_CMD_EXEC_FAIL, + "Tool exited with non-zero exit status", "Tool=%s", + fs->fs_tool_name, NULL); + + goto out; + } + if (!cur_word) { + ret = -1; + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_INODE_SIZE_GET_FAIL, + "Using Tool=%s", fs->fs_tool_name, NULL); + goto out; + } + + if (dict_set_dynstr_with_alloc(cached_fs, device, cur_word)) { + /* not fatal if not entered into the cache */ + gf_msg_debug(this->name, 0, "failed to cache fs inode size for %s", + device); + } + +cached: + snprintf(key, sizeof(key), "brick%d.inode_size", count); + + ret = dict_set_dynstr_with_alloc(dict, key, cur_word); + +out: + if (ret) + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_INODE_SIZE_GET_FAIL, NULL); + return ret; +} + +struct mntent * +glusterd_get_mnt_entry_info(char *mnt_pt, char *buff, int buflen, + struct mntent *entry_ptr) +{ + struct mntent *entry = NULL; + FILE *mtab = NULL; + char abspath[PATH_MAX] = ""; + + GF_ASSERT(mnt_pt); + GF_ASSERT(buff); + GF_ASSERT(entry_ptr); + + mtab = setmntent(_PATH_MOUNTED, "r"); + if (!mtab) + goto out; + + if (!realpath(mnt_pt, abspath)) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_MNTENTRY_GET_FAIL, + "realpath () failed for path %s", mnt_pt); + goto out; + } + + entry = getmntent_r(mtab, entry_ptr, buff, buflen); + + while (1) { + if (!entry) + goto out; + + if (!strcmp(entry->mnt_dir, abspath) && + strcmp(entry->mnt_type, "rootfs")) + break; + entry = getmntent_r(mtab, entry_ptr, buff, buflen); + } + +out: + if (NULL != mtab) { + endmntent(mtab); + } + return entry; +} + +static int +glusterd_add_brick_mount_details(glusterd_brickinfo_t *brickinfo, dict_t *dict, + int count) +{ + int ret = -1; + char key[64] = ""; + char buff[PATH_MAX] = ""; + char base_key[32] = ""; + struct mntent save_entry = {0}; + char *mnt_pt = NULL; + struct mntent *entry = NULL; + xlator_t *this = THIS; + GF_ASSERT(this); + + snprintf(base_key, sizeof(base_key), "brick%d", count); + + ret = glusterd_get_brick_root(brickinfo->path, &mnt_pt); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_BRICKPATH_ROOT_GET_FAIL, + NULL); + goto out; + } + + entry = glusterd_get_mnt_entry_info(mnt_pt, buff, sizeof(buff), + &save_entry); + if (!entry) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_GET_MNT_ENTRY_INFO_FAIL, + NULL); + ret = -1; + goto out; + } + + /* get device file */ + snprintf(key, sizeof(key), "%s.device", base_key); + + ret = dict_set_dynstr_with_alloc(dict, key, entry->mnt_fsname); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + /* fs type */ + snprintf(key, sizeof(key), "%s.fs_name", base_key); + + ret = dict_set_dynstr_with_alloc(dict, key, entry->mnt_type); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + /* mount options */ + snprintf(key, sizeof(key), "%s.mnt_options", base_key); + + ret = dict_set_dynstr_with_alloc(dict, key, entry->mnt_opts); + +out: + if (mnt_pt) + GF_FREE(mnt_pt); + + return ret; +} + +char * +glusterd_get_brick_mount_device(char *brick_path) +{ + int ret = -1; + char *mnt_pt = NULL; + char *device = NULL; + char buff[PATH_MAX] = ""; + struct mntent *entry = NULL; + struct mntent save_entry = { + 0, + }; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + GF_ASSERT(brick_path); + + ret = glusterd_get_brick_root(brick_path, &mnt_pt); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICKPATH_ROOT_GET_FAIL, + "Failed to get mount point " + "for %s brick", + brick_path); + goto out; + } + + entry = glusterd_get_mnt_entry_info(mnt_pt, buff, sizeof(buff), + &save_entry); + if (NULL == entry) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_MNTENTRY_GET_FAIL, + "Failed to get mnt entry " + "for %s mount path", + mnt_pt); + goto out; + } + + /* get the fs_name/device */ + device = gf_strdup(entry->mnt_fsname); + +out: + if (mnt_pt) + GF_FREE(mnt_pt); + + return device; +} + +int +glusterd_add_brick_detail_to_dict(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, dict_t *dict, + int count) +{ + int ret = -1; + uint64_t memtotal = 0; + uint64_t memfree = 0; + uint64_t inodes_total = 0; + uint64_t inodes_free = 0; + uint64_t block_size = 0; + char key[64]; + char base_key[32]; + struct statvfs brickstat = {0}; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(volinfo); + GF_ASSERT(brickinfo); + GF_ASSERT(dict); + + snprintf(base_key, sizeof(base_key), "brick%d", count); + + ret = sys_statvfs(brickinfo->path, &brickstat); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "statfs error: %s ", strerror(errno)); + goto out; + } + + /* file system block size */ + block_size = brickstat.f_bsize; + snprintf(key, sizeof(key), "%s.block_size", base_key); + ret = dict_set_uint64(dict, key, block_size); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + /* free space in brick */ + memfree = brickstat.f_bfree * brickstat.f_bsize; + snprintf(key, sizeof(key), "%s.free", base_key); + ret = dict_set_uint64(dict, key, memfree); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + /* total space of brick */ + memtotal = brickstat.f_blocks * brickstat.f_bsize; + snprintf(key, sizeof(key), "%s.total", base_key); + ret = dict_set_uint64(dict, key, memtotal); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + /* inodes: total and free counts only for ext2/3/4 and xfs */ + inodes_total = brickstat.f_files; + if (inodes_total) { + snprintf(key, sizeof(key), "%s.total_inodes", base_key); + ret = dict_set_uint64(dict, key, inodes_total); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + } + + inodes_free = brickstat.f_ffree; + if (inodes_free) { + snprintf(key, sizeof(key), "%s.free_inodes", base_key); + ret = dict_set_uint64(dict, key, inodes_free); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + } + + ret = glusterd_add_brick_mount_details(brickinfo, dict, count); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_ADD_BRICK_MNT_INFO_FAIL, + NULL); + goto out; + } + + ret = glusterd_add_inode_size_to_dict(dict, count); +out: + if (ret) + gf_msg_debug(this->name, 0, + "Error adding brick" + " detail to dict: %s", + strerror(errno)); + return ret; +} + +int32_t +glusterd_add_brick_to_dict(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, dict_t *dict, + int32_t count) +{ + int ret = -1; + int32_t pid = -1; + char key[64]; + int keylen; + char base_key[32]; + char pidfile[PATH_MAX] = ""; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + gf_boolean_t brick_online = _gf_false; + char *brickpath = NULL; + + GF_ASSERT(volinfo); + GF_ASSERT(brickinfo); + GF_ASSERT(dict); + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + + snprintf(base_key, sizeof(base_key), "brick%d", count); + keylen = snprintf(key, sizeof(key), "%s.hostname", base_key); + + ret = dict_set_strn(dict, key, keylen, brickinfo->hostname); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.path", base_key); + ret = dict_set_strn(dict, key, keylen, brickinfo->path); + if (ret) + goto out; + + /* add peer uuid */ + snprintf(key, sizeof(key), "%s.peerid", base_key); + ret = dict_set_dynstr_with_alloc(dict, key, uuid_utoa(brickinfo->uuid)); + if (ret) { + goto out; + } + + keylen = snprintf(key, sizeof(key), "%s.port", base_key); + ret = dict_set_int32n( + dict, key, keylen, + (volinfo->transport_type == GF_TRANSPORT_RDMA) ? 0 : brickinfo->port); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.rdma_port", base_key); + if (volinfo->transport_type == GF_TRANSPORT_RDMA) { + ret = dict_set_int32n(dict, key, keylen, brickinfo->port); + } else if (volinfo->transport_type == GF_TRANSPORT_BOTH_TCP_RDMA) { + ret = dict_set_int32n(dict, key, keylen, brickinfo->rdma_port); + } else + ret = dict_set_int32n(dict, key, keylen, 0); + + if (ret) + goto out; + + GLUSTERD_GET_BRICK_PIDFILE(pidfile, volinfo, brickinfo, priv); + + if (glusterd_is_brick_started(brickinfo)) { + if (gf_is_service_running(pidfile, &pid) && + brickinfo->port_registered) { + if (!is_brick_mx_enabled()) { + brick_online = _gf_true; + } else { + brickpath = search_brick_path_from_proc(pid, brickinfo->path); + if (!brickpath) { + gf_log(this->name, GF_LOG_INFO, + "brick path %s is not consumed", brickinfo->path); + brick_online = _gf_false; + } else { + brick_online = _gf_true; + GF_FREE(brickpath); + } + } + } else { + pid = -1; + } + } + + keylen = snprintf(key, sizeof(key), "%s.pid", base_key); + ret = dict_set_int32n(dict, key, keylen, pid); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "%s.status", base_key); + ret = dict_set_int32n(dict, key, keylen, brick_online); + +out: + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + gf_msg_debug(this->name, 0, "Returning %d", ret); + } + + return ret; +} + +int32_t +glusterd_get_all_volnames(dict_t *dict) +{ + int ret = -1; + int32_t vol_count = 0; + char key[64] = ""; + int keylen; + glusterd_volinfo_t *entry = NULL; + glusterd_conf_t *priv = NULL; + + priv = THIS->private; + GF_ASSERT(priv); + + cds_list_for_each_entry(entry, &priv->volumes, vol_list) + { + keylen = snprintf(key, sizeof(key), "vol%d", vol_count); + ret = dict_set_strn(dict, key, keylen, entry->volname); + if (ret) + goto out; + + vol_count++; + } + + ret = dict_set_int32n(dict, "vol_count", SLEN("vol_count"), vol_count); + +out: + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "failed to get all " + "volume names for status"); + return ret; +} + +int +glusterd_all_volume_cond_check(glusterd_condition_func func, int status, + void *ctx) +{ + glusterd_conf_t *priv = NULL; + glusterd_volinfo_t *volinfo = NULL; + glusterd_brickinfo_t *brickinfo = NULL; + int ret = -1; + xlator_t *this = NULL; + + this = THIS; + priv = this->private; + + cds_list_for_each_entry(volinfo, &priv->volumes, vol_list) + { + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + ret = func(volinfo, brickinfo, ctx); + if (ret != status) { + ret = -1; + goto out; + } + } + } + ret = 0; +out: + gf_msg_debug("glusterd", 0, "returning %d", ret); + return ret; +} + +int +glusterd_brick_stop(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, gf_boolean_t del_brick) +{ + int ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + + this = THIS; + GF_ASSERT(this); + conf = this->private; + GF_ASSERT(conf); + + if ((!brickinfo) || (!volinfo)) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_INVALID_ARGUMENT, NULL); + goto out; + } + + if (gf_uuid_is_null(brickinfo->uuid)) { + ret = glusterd_resolve_brick(brickinfo); + if (ret) { + gf_event(EVENT_BRICKPATH_RESOLVE_FAILED, + "peer=%s;volume=%s;brick=%s", brickinfo->hostname, + volinfo->volname, brickinfo->path); + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_RESOLVE_BRICK_FAIL, + FMTSTR_RESOLVE_BRICK, brickinfo->hostname, brickinfo->path); + goto out; + } + } + + if (gf_uuid_compare(brickinfo->uuid, MY_UUID)) { + ret = 0; + if (del_brick) + glusterd_delete_brick(volinfo, brickinfo); + goto out; + } + + ret = glusterd_volume_stop_glusterfs(volinfo, brickinfo, del_brick); + if (ret) { + gf_msg(this->name, GF_LOG_CRITICAL, 0, GD_MSG_BRICK_STOP_FAIL, + "Unable to stop" + " brick: %s:%s", + brickinfo->hostname, brickinfo->path); + goto out; + } + +out: + gf_msg_debug(this->name, 0, "returning %d ", ret); + return ret; +} + +int +glusterd_is_defrag_on(glusterd_volinfo_t *volinfo) +{ + return (volinfo->rebal.defrag != NULL); +} + +int +glusterd_new_brick_validate(char *brick, glusterd_brickinfo_t *brickinfo, + char *op_errstr, size_t len, char *op) +{ + glusterd_brickinfo_t *newbrickinfo = NULL; + int ret = -1; + gf_boolean_t is_allocated = _gf_false; + glusterd_peerinfo_t *peerinfo = NULL; + glusterd_conf_t *priv = NULL; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_ASSERT(priv); + + GF_ASSERT(brick); + GF_ASSERT(op_errstr); + + if (!brickinfo) { + ret = glusterd_brickinfo_new_from_brick(brick, &newbrickinfo, _gf_true, + NULL); + if (ret) + goto out; + is_allocated = _gf_true; + } else { + newbrickinfo = brickinfo; + } + + ret = glusterd_resolve_brick(newbrickinfo); + if (ret) { + snprintf(op_errstr, len, + "Host %s is not in \'Peer " + "in Cluster\' state", + newbrickinfo->hostname); + goto out; + } + + if (!gf_uuid_compare(MY_UUID, newbrickinfo->uuid)) { + /* brick is local */ + if (!glusterd_is_brickpath_available(newbrickinfo->uuid, + newbrickinfo->path)) { + snprintf(op_errstr, len, + "Brick: %s not available." + " Brick may be containing or be contained " + "by an existing brick.", + brick); + if (op && (!strcmp(op, "GF_RESET_OP_COMMIT") || + !strcmp(op, "GF_RESET_OP_COMMIT_FORCE"))) + ret = 1; + else + ret = -1; + goto out; + } + + } else { + peerinfo = glusterd_peerinfo_find_by_uuid(newbrickinfo->uuid); + if (peerinfo == NULL) { + ret = -1; + snprintf(op_errstr, len, "Failed to find host %s", + newbrickinfo->hostname); + goto out; + } + + if ((!peerinfo->connected)) { + snprintf(op_errstr, len, "Host %s not connected", + newbrickinfo->hostname); + ret = -1; + goto out; + } + + if (peerinfo->state.state != GD_FRIEND_STATE_BEFRIENDED) { + snprintf(op_errstr, len, + "Host %s is not in \'Peer " + "in Cluster\' state", + newbrickinfo->hostname); + ret = -1; + goto out; + } + } + + ret = 0; +out: + if (is_allocated) + glusterd_brickinfo_delete(newbrickinfo); + if (op_errstr[0] != '\0') + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICK_VALIDATE_FAIL, "%s", + op_errstr); + gf_msg_debug(this->name, 0, "returning %d ", ret); + return ret; +} + +int +glusterd_rb_check_bricks(glusterd_volinfo_t *volinfo, glusterd_brickinfo_t *src, + glusterd_brickinfo_t *dst) +{ + glusterd_replace_brick_t *rb = NULL; + + GF_ASSERT(volinfo); + + rb = &volinfo->rep_brick; + + if (!rb->src_brick || !rb->dst_brick) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_INVALID_ARGUMENT, NULL); + return -1; + } + + if (strcmp(rb->src_brick->hostname, src->hostname) || + strcmp(rb->src_brick->path, src->path)) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_RB_SRC_BRICKS_MISMATCH, + "Replace brick src bricks differ"); + return -1; + } + + if (strcmp(rb->dst_brick->hostname, dst->hostname) || + strcmp(rb->dst_brick->path, dst->path)) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_RB_DST_BRICKS_MISMATCH, + "Replace brick dst bricks differ"); + return -1; + } + + return 0; +} + +/*path needs to be absolute; works only on gfid, volume-id*/ +static int +glusterd_is_uuid_present(char *path, char *xattr, gf_boolean_t *present) +{ + GF_ASSERT(path); + GF_ASSERT(xattr); + GF_ASSERT(present); + + int ret = -1; + uuid_t uid = { + 0, + }; + + if (!path || !xattr || !present) + goto out; + + ret = sys_lgetxattr(path, xattr, &uid, 16); + + if (ret >= 0) { + *present = _gf_true; + ret = 0; + goto out; + } + + switch (errno) { +#if defined(ENODATA) + case ENODATA: /* FALLTHROUGH */ +#endif +#if defined(ENOATTR) && (ENOATTR != ENODATA) + case ENOATTR: /* FALLTHROUGH */ +#endif + case ENOTSUP: + *present = _gf_false; + ret = 0; + break; + default: + break; + } +out: + return ret; +} + +/*path needs to be absolute*/ +static int +glusterd_is_path_in_use(char *path, gf_boolean_t *in_use, char **op_errstr) +{ + int i = 0; + int ret = -1; + gf_boolean_t used = _gf_false; + char dir[PATH_MAX] = ""; + char *curdir = NULL; + char msg[2048] = ""; + char *keys[3] = {GFID_XATTR_KEY, GF_XATTR_VOL_ID_KEY, NULL}; + + GF_ASSERT(path); + if (!path) + goto out; + + if (snprintf(dir, PATH_MAX, "%s", path) >= PATH_MAX) + goto out; + + curdir = dir; + do { + for (i = 0; !used && keys[i]; i++) { + ret = glusterd_is_uuid_present(curdir, keys[i], &used); + if (ret) + goto out; + } + + if (used) + break; + + curdir = dirname(curdir); + if (!strcmp(curdir, ".")) + goto out; + + } while (strcmp(curdir, "/")); + + if (!strcmp(curdir, "/")) { + for (i = 0; !used && keys[i]; i++) { + ret = glusterd_is_uuid_present(curdir, keys[i], &used); + if (ret) + goto out; + } + } + + ret = 0; + *in_use = used; +out: + if (ret) { + snprintf(msg, sizeof(msg), + "Failed to get extended " + "attribute %s, reason: %s", + keys[i], strerror(errno)); + } + + if (*in_use) { + if (path && curdir && !strcmp(path, curdir)) { + snprintf(msg, sizeof(msg), + "%s is already part of a " + "volume", + path); + } else { + snprintf(msg, sizeof(msg), + "parent directory %s is " + "already part of a volume", + curdir); + } + } + + if (strlen(msg)) { + gf_msg(THIS->name, GF_LOG_ERROR, errno, GD_MSG_PATH_ALREADY_PART_OF_VOL, + "%s", msg); + *op_errstr = gf_strdup(msg); + } + + return ret; +} + +int +glusterd_check_and_set_brick_xattr(char *host, char *path, uuid_t uuid, + char **op_errstr, gf_boolean_t is_force) +{ + int ret = -1; + char msg[2048] = ""; + gf_boolean_t in_use = _gf_false; + int flags = 0; + xlator_t *this = THIS; + GF_ASSERT(this); + + /* Check for xattr support in backend fs */ + ret = sys_lsetxattr(path, "trusted.glusterfs.test", "working", 8, 0); + if (ret == -1) { + snprintf(msg, sizeof(msg), + "Glusterfs is not" + " supported on brick: %s:%s.\nSetting" + " extended attributes failed, reason:" + " %s.", + host, path, strerror(errno)); + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_SET_XATTR_BRICK_FAIL, + "Host=%s, Path=%s", host, path, NULL); + goto out; + + } else { + ret = sys_lremovexattr(path, "trusted.glusterfs.test"); + if (ret) { + snprintf(msg, sizeof(msg), + "Removing test extended" + " attribute failed, reason: %s", + strerror(errno)); + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_REMOVE_XATTR_FAIL, + NULL); + goto out; + } + } + + ret = glusterd_is_path_in_use(path, &in_use, op_errstr); + if (ret) + goto out; + + if (in_use && !is_force) { + ret = -1; + goto out; + } + + if (!is_force) + flags = XATTR_CREATE; + + ret = sys_lsetxattr(path, GF_XATTR_VOL_ID_KEY, uuid, 16, flags); + if (ret == -1) { + snprintf(msg, sizeof(msg), + "Failed to set extended " + "attributes %s, reason: %s", + GF_XATTR_VOL_ID_KEY, strerror(errno)); + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_SET_XATTR_FAIL, + "Attriutes=%s", GF_XATTR_VOL_ID_KEY, NULL); + goto out; + } + + ret = 0; +out: + if (strlen(msg)) + *op_errstr = gf_strdup(msg); + + return ret; +} + +static int +glusterd_sm_tr_log_transition_add_to_dict(dict_t *dict, + glusterd_sm_tr_log_t *log, int i, + int count) +{ + int ret = -1; + char key[64] = ""; + int keylen; + char timestr[GF_TIMESTR_SIZE] = ""; + char *str = NULL; + + GF_ASSERT(dict); + GF_ASSERT(log); + + keylen = snprintf(key, sizeof(key), "log%d-old-state", count); + str = log->state_name_get(log->transitions[i].old_state); + ret = dict_set_strn(dict, key, keylen, str); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "log%d-event", count); + str = log->event_name_get(log->transitions[i].event); + ret = dict_set_strn(dict, key, keylen, str); + if (ret) + goto out; + + keylen = snprintf(key, sizeof(key), "log%d-new-state", count); + str = log->state_name_get(log->transitions[i].new_state); + ret = dict_set_strn(dict, key, keylen, str); + if (ret) + goto out; + + snprintf(key, sizeof(key), "log%d-time", count); + gf_time_fmt(timestr, sizeof timestr, log->transitions[i].time, + gf_timefmt_FT); + ret = dict_set_dynstr_with_alloc(dict, key, timestr); + if (ret) + goto out; + +out: + if (key[0] != '\0' && ret != 0) + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + gf_msg_debug("glusterd", 0, "returning %d", ret); + return ret; +} + +int +glusterd_sm_tr_log_add_to_dict(dict_t *dict, glusterd_sm_tr_log_t *circular_log) +{ + int ret = -1; + int i = 0; + int start = 0; + int end = 0; + int index = 0; + char key[16] = {0}; + glusterd_sm_tr_log_t *log = NULL; + int count = 0; + + GF_ASSERT(dict); + GF_ASSERT(circular_log); + + log = circular_log; + if (!log->count) + return 0; + + if (log->count == log->size) + start = log->current + 1; + + end = start + log->count; + for (i = start; i < end; i++, count++) { + index = i % log->count; + ret = glusterd_sm_tr_log_transition_add_to_dict(dict, log, index, + count); + if (ret) + goto out; + } + + ret = snprintf(key, sizeof(key), "count"); + ret = dict_set_int32n(dict, key, ret, log->count); + +out: + gf_msg_debug("glusterd", 0, "returning %d", ret); + return ret; +} + +int +glusterd_sm_tr_log_init(glusterd_sm_tr_log_t *log, char *(*state_name_get)(int), + char *(*event_name_get)(int), size_t size) +{ + glusterd_sm_transition_t *transitions = NULL; + int ret = -1; + + GF_ASSERT(size > 0); + GF_ASSERT(log && state_name_get && event_name_get); + + if (!log || !state_name_get || !event_name_get || (size <= 0)) + goto out; + + transitions = GF_CALLOC(size, sizeof(*transitions), gf_gld_mt_sm_tr_log_t); + if (!transitions) + goto out; + + log->transitions = transitions; + log->size = size; + log->state_name_get = state_name_get; + log->event_name_get = event_name_get; + ret = 0; + +out: + gf_msg_debug("glusterd", 0, "returning %d", ret); + return ret; +} + +void +glusterd_sm_tr_log_delete(glusterd_sm_tr_log_t *log) +{ + if (!log) + return; + GF_FREE(log->transitions); + return; +} + +int +glusterd_sm_tr_log_transition_add(glusterd_sm_tr_log_t *log, int old_state, + int new_state, int event) +{ + glusterd_sm_transition_t *transitions = NULL; + int ret = -1; + int next = 0; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + + GF_ASSERT(log); + if (!log) + goto out; + + transitions = log->transitions; + if (!transitions) + goto out; + + if (log->count) + next = (log->current + 1) % log->size; + else + next = 0; + + transitions[next].old_state = old_state; + transitions[next].new_state = new_state; + transitions[next].event = event; + transitions[next].time = gf_time(); + + log->current = next; + if (log->count < log->size) + log->count++; + ret = 0; + gf_msg_debug(this->name, 0, + "Transitioning from '%s' to '%s' " + "due to event '%s'", + log->state_name_get(old_state), log->state_name_get(new_state), + log->event_name_get(event)); +out: + gf_msg_debug(this->name, 0, "returning %d", ret); + return ret; +} + +int +glusterd_remove_pending_entry(struct cds_list_head *list, void *elem) +{ + glusterd_pending_node_t *pending_node = NULL; + glusterd_pending_node_t *tmp = NULL; + int ret = 0; + + cds_list_for_each_entry_safe(pending_node, tmp, list, list) + { + if (elem == pending_node->node) { + cds_list_del_init(&pending_node->list); + GF_FREE(pending_node); + ret = 0; + goto out; + } + } +out: + gf_msg_debug(THIS->name, 0, "returning %d", ret); + return ret; +} + +int +glusterd_clear_pending_nodes(struct cds_list_head *list) +{ + glusterd_pending_node_t *pending_node = NULL; + glusterd_pending_node_t *tmp = NULL; + + cds_list_for_each_entry_safe(pending_node, tmp, list, list) + { + cds_list_del_init(&pending_node->list); + GF_FREE(pending_node); + } + + return 0; +} + +int32_t +glusterd_delete_volume(glusterd_volinfo_t *volinfo) +{ + int ret = -1; + GF_ASSERT(volinfo); + + ret = glusterd_store_delete_volume(volinfo); + + if (ret) + goto out; + + glusterd_volinfo_remove(volinfo); +out: + gf_msg_debug(THIS->name, 0, "returning %d", ret); + return ret; +} + +int32_t +glusterd_delete_brick(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo) +{ + int ret = 0; + char voldir[PATH_MAX] = ""; + glusterd_conf_t *priv = THIS->private; + GF_ASSERT(volinfo); + GF_ASSERT(brickinfo); + + GLUSTERD_GET_VOLUME_DIR(voldir, volinfo, priv); + + glusterd_delete_volfile(volinfo, brickinfo); + glusterd_store_delete_brick(brickinfo, voldir); + glusterd_brickinfo_delete(brickinfo); + volinfo->brick_count--; + return ret; +} + +int32_t +glusterd_delete_all_bricks(glusterd_volinfo_t *volinfo) +{ + int ret = 0; + glusterd_brickinfo_t *brickinfo = NULL; + glusterd_brickinfo_t *tmp = NULL; + + GF_ASSERT(volinfo); + + cds_list_for_each_entry_safe(brickinfo, tmp, &volinfo->bricks, brick_list) + { + ret = glusterd_delete_brick(volinfo, brickinfo); + } + return ret; +} + +int +glusterd_get_local_brickpaths(glusterd_volinfo_t *volinfo, char **pathlist) +{ + char **path_tokens = NULL; + char *tmp_path_list = NULL; + char path[PATH_MAX] = ""; + int32_t count = 0; + int32_t pathlen = 0; + int32_t total_len = 0; + int32_t ret = 0; + int i = 0; + glusterd_brickinfo_t *brickinfo = NULL; + + if ((!volinfo) || (!pathlist)) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_INVALID_ARGUMENT, NULL); + goto out; + } + + path_tokens = GF_CALLOC(sizeof(char *), volinfo->brick_count, + gf_gld_mt_charptr); + if (!path_tokens) { + gf_msg("glusterd", GF_LOG_ERROR, ENOMEM, GD_MSG_NO_MEMORY, + "Could not allocate memory."); + ret = -1; + goto out; + } + + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + if (gf_uuid_compare(brickinfo->uuid, MY_UUID)) + continue; + + pathlen = snprintf(path, sizeof(path), "--path=%s ", brickinfo->path); + if (pathlen < sizeof(path)) + path[pathlen] = '\0'; + else + path[sizeof(path) - 1] = '\0'; + path_tokens[count] = gf_strdup(path); + if (!path_tokens[count]) { + gf_msg("glusterd", GF_LOG_ERROR, ENOMEM, GD_MSG_NO_MEMORY, + "Could not allocate memory."); + ret = -1; + goto out; + } + count++; + total_len += pathlen; + } + + tmp_path_list = GF_CALLOC(sizeof(char), total_len + 1, gf_gld_mt_char); + if (!tmp_path_list) { + gf_msg("glusterd", GF_LOG_ERROR, ENOMEM, GD_MSG_NO_MEMORY, + "Could not allocate memory."); + ret = -1; + goto out; + } + + for (i = 0; i < count; i++) + strcat(tmp_path_list, path_tokens[i]); + + if (count) + *pathlist = tmp_path_list; + + ret = count; +out: + if (path_tokens) { + for (i = 0; i < count; i++) { + GF_FREE(path_tokens[i]); + } + } + + GF_FREE(path_tokens); + path_tokens = NULL; + + if (ret == 0) { + gf_msg_debug("glusterd", 0, "No Local Bricks Present."); + GF_FREE(tmp_path_list); + tmp_path_list = NULL; + } + + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +int +glusterd_start_gsync(glusterd_volinfo_t *master_vol, char *slave, + char *path_list, char *conf_path, char *glusterd_uuid_str, + char **op_errstr, gf_boolean_t is_pause) +{ + int32_t ret = 0; + int32_t status = 0; + char uuid_str[64] = ""; + runner_t runner = { + 0, + }; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + int errcode = 0; + gf_boolean_t is_template_in_use = _gf_false; + + this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_ASSERT(priv); + + uuid_utoa_r(MY_UUID, uuid_str); + + if (!path_list) { + ret = 0; + gf_msg_debug("glusterd", 0, + "No Bricks in this node." + " Not starting gsyncd."); + goto out; + } + + ret = gsync_status(master_vol->volname, slave, conf_path, &status, + &is_template_in_use); + if (status == 0) + goto out; + + if (is_template_in_use == _gf_true) { + gf_asprintf(op_errstr, + GEOREP + " start failed for %s %s : " + "pid-file entry missing in config file", + master_vol->volname, slave); + ret = -1; + goto out; + } + + uuid_utoa_r(master_vol->volume_id, uuid_str); + runinit(&runner); + runner_add_args(&runner, GSYNCD_PREFIX "/gsyncd", path_list, "-c", NULL); + runner_argprintf(&runner, "%s", conf_path); + runner_argprintf(&runner, ":%s", master_vol->volname); + runner_add_args(&runner, slave, "--config-set", "session-owner", NULL); + runner_argprintf(&runner, "--value=%s", uuid_str); + synclock_unlock(&priv->big_lock); + ret = runner_run(&runner); + synclock_lock(&priv->big_lock); + if (ret == -1) { + errcode = -1; + goto out; + } + + runinit(&runner); + runner_add_args(&runner, GSYNCD_PREFIX "/gsyncd", path_list, "--monitor", + "-c", NULL); + runner_argprintf(&runner, "%s", conf_path); + runner_argprintf(&runner, "--iprefix=%s", DATADIR); + runner_argprintf(&runner, ":%s", master_vol->volname); + runner_argprintf(&runner, "--glusterd-uuid=%s", uuid_utoa(priv->uuid)); + runner_add_arg(&runner, slave); + if (is_pause) + runner_add_arg(&runner, "--pause-on-start"); + synclock_unlock(&priv->big_lock); + ret = runner_run(&runner); + synclock_lock(&priv->big_lock); + if (ret == -1) { + gf_asprintf(op_errstr, GEOREP " start failed for %s %s", + master_vol->volname, slave); + goto out; + } + + ret = 0; + +out: + if ((ret != 0) && errcode == -1) { + if (op_errstr) + *op_errstr = gf_strdup( + "internal error, cannot start " + "the " GEOREP " session"); + } + + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +int32_t +glusterd_recreate_volfiles(glusterd_conf_t *conf) +{ + glusterd_volinfo_t *volinfo = NULL; + int ret = 0; + int op_ret = 0; + + GF_ASSERT(conf); + + cds_list_for_each_entry(volinfo, &conf->volumes, vol_list) + { + ret = generate_brick_volfiles(volinfo); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_VOLFILE_CREATE_FAIL, + "Failed to " + "regenerate brick volfiles for %s", + volinfo->volname); + op_ret = ret; + } + ret = generate_client_volfiles(volinfo, GF_CLIENT_TRUSTED); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_VOLFILE_CREATE_FAIL, + "Failed to " + "regenerate trusted client volfiles for %s", + volinfo->volname); + op_ret = ret; + } + ret = generate_client_volfiles(volinfo, GF_CLIENT_OTHER); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_VOLFILE_CREATE_FAIL, + "Failed to " + "regenerate client volfiles for %s", + volinfo->volname); + op_ret = ret; + } + } + return op_ret; +} + +int32_t +glusterd_handle_upgrade_downgrade(dict_t *options, glusterd_conf_t *conf, + gf_boolean_t upgrade, gf_boolean_t downgrade) +{ + int ret = 0; + gf_boolean_t regenerate_volfiles = _gf_false; + gf_boolean_t terminate = _gf_false; + + if (_gf_true == upgrade) + regenerate_volfiles = _gf_true; + + if (upgrade && downgrade) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_WRONG_OPTS_SETTING, + "Both upgrade and downgrade" + " options are set. Only one should be on"); + ret = -1; + goto out; + } + + if (!upgrade && !downgrade) + ret = 0; + else + terminate = _gf_true; + if (regenerate_volfiles) { + ret = glusterd_recreate_volfiles(conf); + } +out: + if (terminate && (ret == 0)) + kill(getpid(), SIGTERM); + return ret; +} + +static inline int +glusterd_is_replica_volume(int type) +{ + if (type == GF_CLUSTER_TYPE_REPLICATE) + return 1; + return 0; +} +gf_boolean_t +glusterd_is_volume_replicate(glusterd_volinfo_t *volinfo) +{ + return glusterd_is_replica_volume((volinfo->type)); +} + +gf_boolean_t +glusterd_is_shd_compatible_type(int type) +{ + switch (type) { + case GF_CLUSTER_TYPE_REPLICATE: + case GF_CLUSTER_TYPE_DISPERSE: + return _gf_true; + } + return _gf_false; +} + +gf_boolean_t +glusterd_is_shd_compatible_volume(glusterd_volinfo_t *volinfo) +{ + return glusterd_is_shd_compatible_type(volinfo->type); +} + +int +glusterd_set_dump_options(char *dumpoptions_path, char *options, int option_cnt) +{ + int ret = 0; + char *dup_options = NULL; + char *option = NULL; + char *tmpptr = NULL; + FILE *fp = NULL; + int nfs_cnt = 0; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GF_ASSERT(priv); + + if (0 == option_cnt || (option_cnt == 1 && (!strcmp(options, "nfs ")))) { + ret = 0; + goto out; + } + + fp = fopen(dumpoptions_path, "w"); + if (!fp) { + ret = -1; + goto out; + } + dup_options = gf_strdup(options); + + if (!dup_options) { + goto out; + } + gf_msg("glusterd", GF_LOG_INFO, 0, GD_MSG_STATEDUMP_OPTS_RCVD, + "Received following statedump options: %s", dup_options); + option = strtok_r(dup_options, " ", &tmpptr); + while (option) { + if (!strcmp(option, priv->nfs_svc.name)) { + if (nfs_cnt > 0) { + sys_unlink(dumpoptions_path); + ret = 0; + goto out; + } + nfs_cnt++; + option = strtok_r(NULL, " ", &tmpptr); + continue; + } + fprintf(fp, "%s=yes\n", option); + option = strtok_r(NULL, " ", &tmpptr); + } + +out: + if (fp) + fclose(fp); + GF_FREE(dup_options); + return ret; +} + +static int +glusterd_brick_signal(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, char *options, + int option_cnt, char **op_errstr, int sig) +{ + int ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + char pidfile_path[PATH_MAX] = ""; + char dumpoptions_path[PATH_MAX] = ""; + FILE *pidfile = NULL; + pid_t pid = -1; + + this = THIS; + GF_ASSERT(this); + conf = this->private; + GF_ASSERT(conf); + + if (gf_uuid_is_null(brickinfo->uuid)) { + ret = glusterd_resolve_brick(brickinfo); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_RESOLVE_BRICK_FAIL, + "Cannot resolve brick %s:%s", brickinfo->hostname, + brickinfo->path); + goto out; + } + } + + if (gf_uuid_compare(brickinfo->uuid, MY_UUID)) { + ret = 0; + goto out; + } + + GLUSTERD_GET_BRICK_PIDFILE(pidfile_path, volinfo, brickinfo, conf); + + /* TBD: use gf_is_service_running instead of almost-identical code? */ + pidfile = fopen(pidfile_path, "r"); + if (!pidfile) { + gf_msg("glusterd", GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Unable to open pidfile: %s", pidfile_path); + ret = -1; + goto out; + } + + ret = fscanf(pidfile, "%d", &pid); + if (ret <= 0) { + gf_msg("glusterd", GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Unable to get pid of brick process"); + ret = -1; + goto out; + } + + if (pid == 0) { + gf_msg("glusterd", GF_LOG_WARNING, 0, GD_MSG_NO_SIG_TO_PID_ZERO, + "refusing to send signal %d to pid zero", sig); + goto out; + } + + if (sig == SIGUSR1) { + snprintf(dumpoptions_path, sizeof(dumpoptions_path), + DEFAULT_VAR_RUN_DIRECTORY "/glusterdump.%d.options", pid); + ret = glusterd_set_dump_options(dumpoptions_path, options, option_cnt); + if (ret < 0) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_BRK_STATEDUMP_FAIL, + "error while parsing the statedump " + "options"); + ret = -1; + goto out; + } + } + + gf_msg("glusterd", GF_LOG_INFO, 0, GD_MSG_STATEDUMP_INFO, + "sending signal %d to brick with pid %d", sig, pid); + + kill(pid, sig); + + sleep(1); + sys_unlink(dumpoptions_path); + ret = 0; +out: + if (pidfile) + fclose(pidfile); + return ret; +} + +int +glusterd_brick_statedump(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, char *options, + int option_cnt, char **op_errstr) +{ + return glusterd_brick_signal(volinfo, brickinfo, options, option_cnt, + op_errstr, SIGUSR1); +} + +int +glusterd_brick_terminate(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, char *options, + int option_cnt, char **op_errstr) +{ + return glusterd_brick_signal(volinfo, brickinfo, options, option_cnt, + op_errstr, SIGTERM); +} + +#ifdef BUILD_GNFS +int +glusterd_nfs_statedump(char *options, int option_cnt, char **op_errstr) +{ + int ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + char pidfile_path[PATH_MAX] = ""; + FILE *pidfile = NULL; + pid_t pid = -1; + char dumpoptions_path[PATH_MAX] = ""; + char *option = NULL; + char *tmpptr = NULL; + char *dup_options = NULL; + char msg[256] = ""; + + this = THIS; + GF_ASSERT(this); + conf = this->private; + GF_ASSERT(conf); + + dup_options = gf_strdup(options); + + if (!dup_options) { + goto out; + } + option = strtok_r(dup_options, " ", &tmpptr); + if (strcmp(option, conf->nfs_svc.name)) { + snprintf(msg, sizeof(msg), + "for nfs statedump, options should" + " be after the key nfs"); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_INVALID_ENTRY, + "Options misplaced", NULL); + *op_errstr = gf_strdup(msg); + ret = -1; + goto out; + } + + GLUSTERD_GET_NFS_PIDFILE(pidfile_path, conf); + + pidfile = fopen(pidfile_path, "r"); + if (!pidfile) { + gf_msg("glusterd", GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Unable to open pidfile: %s", pidfile_path); + ret = -1; + goto out; + } + + ret = fscanf(pidfile, "%d", &pid); + if (ret <= 0) { + gf_msg("glusterd", GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Unable to get pid of brick process"); + ret = -1; + goto out; + } + + snprintf(dumpoptions_path, sizeof(dumpoptions_path), + DEFAULT_VAR_RUN_DIRECTORY "/glusterdump.%d.options", pid); + ret = glusterd_set_dump_options(dumpoptions_path, options, option_cnt); + if (ret < 0) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_BRK_STATEDUMP_FAIL, + "error while parsing the statedump " + "options"); + ret = -1; + goto out; + } + + gf_msg("glusterd", GF_LOG_INFO, 0, GD_MSG_STATEDUMP_INFO, + "Performing statedump on nfs server with " + "pid %d", + pid); + + kill(pid, SIGUSR1); + + sleep(1); + /* coverity[TAINTED_STRING] */ + sys_unlink(dumpoptions_path); + ret = 0; +out: + if (pidfile) + fclose(pidfile); + GF_FREE(dup_options); + return ret; +} +#endif + +int +glusterd_client_statedump(char *volname, char *options, int option_cnt, + char **op_errstr) +{ + int ret = 0; + char *dup_options = NULL; + char *option = NULL; + char *tmpptr = NULL; + char msg[256] = ""; + char *target_ip = NULL; + char *pid = NULL; + + dup_options = gf_strdup(options); + if (!dup_options) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_STRDUP_FAILED, + "options=%s", options, NULL); + goto out; + } + option = strtok_r(dup_options, " ", &tmpptr); + if (strcmp(option, "client")) { + snprintf(msg, sizeof(msg), + "for gluster client statedump, options " + "should be after the key 'client'"); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_INVALID_ENTRY, + "Options misplaced", NULL); + *op_errstr = gf_strdup(msg); + ret = -1; + goto out; + } + target_ip = strtok_r(NULL, " ", &tmpptr); + if (target_ip == NULL) { + snprintf(msg, sizeof(msg), "ip address not specified"); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_INVALID_ENTRY, msg, + NULL); + *op_errstr = gf_strdup(msg); + ret = -1; + goto out; + } + + pid = strtok_r(NULL, " ", &tmpptr); + if (pid == NULL) { + snprintf(msg, sizeof(msg), "pid not specified"); + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_INVALID_ENTRY, msg, + NULL); + *op_errstr = gf_strdup(msg); + ret = -1; + goto out; + } + + ret = glusterd_client_statedump_submit_req(volname, target_ip, pid); +out: + GF_FREE(dup_options); + return ret; +} + +int +glusterd_quotad_statedump(char *options, int option_cnt, char **op_errstr) +{ + int ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + char pidfile_path[PATH_MAX] = ""; + FILE *pidfile = NULL; + pid_t pid = -1; + char dumpoptions_path[PATH_MAX] = ""; + char *option = NULL; + char *tmpptr = NULL; + char *dup_options = NULL; + char msg[256] = ""; + + this = THIS; + GF_ASSERT(this); + conf = this->private; + GF_ASSERT(conf); + + dup_options = gf_strdup(options); + if (!dup_options) { + goto out; + } + option = strtok_r(dup_options, " ", &tmpptr); + if (strcmp(option, conf->quotad_svc.name)) { + snprintf(msg, sizeof(msg), + "for quotad statedump, options " + "should be after the key 'quotad'"); + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_INVALID_ENTRY, + "Options misplaced", NULL); + *op_errstr = gf_strdup(msg); + ret = -1; + goto out; + } + + GLUSTERD_GET_QUOTAD_PIDFILE(pidfile_path, conf); + + pidfile = fopen(pidfile_path, "r"); + if (!pidfile) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Unable to open pidfile: %s", pidfile_path); + ret = -1; + goto out; + } + + ret = fscanf(pidfile, "%d", &pid); + if (ret <= 0) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "Unable to get pid of quotad " + "process"); + ret = -1; + goto out; + } + + snprintf(dumpoptions_path, sizeof(dumpoptions_path), + DEFAULT_VAR_RUN_DIRECTORY "/glusterdump.%d.options", pid); + ret = glusterd_set_dump_options(dumpoptions_path, options, option_cnt); + if (ret < 0) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRK_STATEDUMP_FAIL, + "error while parsing " + "statedump options"); + ret = -1; + goto out; + } + + gf_msg(this->name, GF_LOG_INFO, 0, GD_MSG_STATEDUMP_INFO, + "Performing statedump on quotad with " + "pid %d", + pid); + + kill(pid, SIGUSR1); + + sleep(1); + + /* coverity[TAINTED_STRING] */ + sys_unlink(dumpoptions_path); + ret = 0; +out: + if (pidfile) + fclose(pidfile); + GF_FREE(dup_options); + return ret; +} + +/* Checks if the given peer contains bricks belonging to the given volume. + * Returns, + * 2 - if peer contains all the bricks + * 1 - if peer contains at least 1 brick + * 0 - if peer contains no bricks + */ +int +glusterd_friend_contains_vol_bricks(glusterd_volinfo_t *volinfo, + uuid_t friend_uuid) +{ + int ret = 0; + glusterd_brickinfo_t *brickinfo = NULL; + int count = 0; + + GF_ASSERT(volinfo); + + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + if (!gf_uuid_compare(brickinfo->uuid, friend_uuid)) { + count++; + } + } + + if (count) { + if (count == volinfo->brick_count) + ret = 2; + else + ret = 1; + } + gf_msg_debug(THIS->name, 0, "Returning %d", ret); + return ret; +} + +/* Checks if the given peer contains bricks belonging to the given volume. + * Returns, + * 2 - if peer contains all the bricks + * 1 - if peer contains at least 1 brick + * 0 - if peer contains no bricks + */ +int +glusterd_friend_contains_snap_bricks(glusterd_snap_t *snapinfo, + uuid_t friend_uuid) +{ + int ret = -1; + glusterd_volinfo_t *volinfo = NULL; + glusterd_brickinfo_t *brickinfo = NULL; + int count = 0; + + GF_VALIDATE_OR_GOTO("glusterd", snapinfo, out); + + cds_list_for_each_entry(volinfo, &snapinfo->volumes, vol_list) + { + cds_list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + if (!gf_uuid_compare(brickinfo->uuid, friend_uuid)) { + count++; + } + } + } + + if (count > 0) + ret = 1; + else + ret = 0; + +out: + gf_msg_debug(THIS->name, 0, "Returning %d", ret); + return ret; +} + +/* Cleanup the stale volumes left behind in the cluster. The volumes which are + * contained completely within the detached peer are stale with respect to the + * cluster. + */ +int +glusterd_friend_remove_cleanup_vols(uuid_t uuid) +{ + int ret = -1; + glusterd_conf_t *priv = NULL; + glusterd_svc_t *svc = NULL; + glusterd_volinfo_t *volinfo = NULL; + glusterd_volinfo_t *tmp_volinfo = NULL; + + priv = THIS->private; + GF_ASSERT(priv); + + cds_list_for_each_entry_safe(volinfo, tmp_volinfo, &priv->volumes, vol_list) + { + if (!glusterd_friend_contains_vol_bricks(volinfo, MY_UUID)) { + /*Stop snapd daemon service if snapd daemon is running*/ + if (!volinfo->is_snap_volume) { + svc = &(volinfo->snapd.svc); + ret = svc->stop(svc, SIGTERM); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_SVC_STOP_FAIL, + "Failed " + "to stop snapd daemon service"); + } + } + + if (glusterd_is_shd_compatible_volume(volinfo)) { + /* + * Sending stop request for all volumes. So it is fine + * to send stop for mux shd + */ + svc = &(volinfo->shd.svc); + ret = svc->stop(svc, SIGTERM); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_SVC_STOP_FAIL, + "Failed " + "to stop shd daemon service"); + } + } + } + + if (glusterd_friend_contains_vol_bricks(volinfo, uuid) == 2) { + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_STALE_VOL_DELETE_INFO, + "Deleting stale volume %s", volinfo->volname); + ret = glusterd_delete_volume(volinfo); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, + GD_MSG_STALE_VOL_REMOVE_FAIL, + "Error deleting stale volume"); + goto out; + } + } + } + + /* Reconfigure all daemon services upon peer detach */ + ret = glusterd_svcs_reconfigure(NULL); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_SVC_STOP_FAIL, + "Failed to reconfigure all daemon services."); + } + ret = 0; +out: + gf_msg_debug(THIS->name, 0, "Returning %d", ret); + return ret; +} + +int +glusterd_get_bitd_filepath(char *filepath, glusterd_volinfo_t *volinfo) +{ + int ret = 0; + char path[PATH_MAX] = ""; + glusterd_conf_t *priv = NULL; + int32_t len = 0; + + priv = THIS->private; + + GLUSTERD_GET_VOLUME_DIR(path, volinfo, priv); + + len = snprintf(filepath, PATH_MAX, "%s/%s-bitd.vol", path, + volinfo->volname); + if ((len < 0) || (len >= PATH_MAX)) { + ret = -1; + } + + return ret; +} + +int +glusterd_get_client_filepath(char *filepath, glusterd_volinfo_t *volinfo, + gf_transport_type type) +{ + int ret = 0; + char path[PATH_MAX] = ""; + glusterd_conf_t *priv = NULL; + int32_t len = 0; + + priv = THIS->private; + + GLUSTERD_GET_VOLUME_DIR(path, volinfo, priv); + + switch (type) { + case GF_TRANSPORT_TCP: + len = snprintf(filepath, PATH_MAX, "%s/%s.tcp-fuse.vol", path, + volinfo->volname); + break; + + case GF_TRANSPORT_RDMA: + len = snprintf(filepath, PATH_MAX, "%s/%s.rdma-fuse.vol", path, + volinfo->volname); + break; + default: + ret = -1; + break; + } + if ((len < 0) || (len >= PATH_MAX)) { + ret = -1; + } + + return ret; +} + +int +glusterd_get_trusted_client_filepath(char *filepath, + glusterd_volinfo_t *volinfo, + gf_transport_type type) +{ + int ret = 0; + char path[PATH_MAX] = ""; + glusterd_conf_t *priv = NULL; + int32_t len = 0; + + priv = THIS->private; + + GLUSTERD_GET_VOLUME_DIR(path, volinfo, priv); + + switch (type) { + case GF_TRANSPORT_TCP: + len = snprintf(filepath, PATH_MAX, "%s/trusted-%s.tcp-fuse.vol", + path, volinfo->volname); + break; + + case GF_TRANSPORT_RDMA: + len = snprintf(filepath, PATH_MAX, "%s/trusted-%s.rdma-fuse.vol", + path, volinfo->volname); + break; + default: + ret = -1; + break; + } + if ((len < 0) || (len >= PATH_MAX)) { + ret = -1; + } + + return ret; +} + +int +glusterd_get_dummy_client_filepath(char *filepath, glusterd_volinfo_t *volinfo, + gf_transport_type type) +{ + int ret = 0; + + switch (type) { + case GF_TRANSPORT_TCP: + case GF_TRANSPORT_BOTH_TCP_RDMA: + snprintf(filepath, PATH_MAX, "/tmp/%s.tcp-fuse.vol", + volinfo->volname); + break; + + case GF_TRANSPORT_RDMA: + snprintf(filepath, PATH_MAX, "/tmp/%s.rdma-fuse.vol", + volinfo->volname); + break; + default: + ret = -1; + break; + } + + return ret; +} + +int +glusterd_volume_defrag_restart(glusterd_volinfo_t *volinfo, char *op_errstr, + size_t len, int cmd, defrag_cbk_fn_t cbk) +{ + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + char pidfile[PATH_MAX] = ""; + int ret = -1; + pid_t pid = 0; + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + if (!priv) + return ret; + + /* Don't start the rebalance process if the stautus is already + * completed, stopped or failed. If the status is started, check if + * there is an existing process already and connect to it. If not, then + * start the rebalance process + */ + + switch (volinfo->rebal.defrag_status) { + case GF_DEFRAG_STATUS_COMPLETE: + case GF_DEFRAG_STATUS_STOPPED: + case GF_DEFRAG_STATUS_FAILED: + break; + case GF_DEFRAG_STATUS_STARTED: + GLUSTERD_GET_DEFRAG_PID_FILE(pidfile, volinfo, priv); + if (gf_is_service_running(pidfile, &pid)) { + ret = glusterd_rebalance_defrag_init(volinfo, cbk); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, + GD_MSG_REBALANCE_START_FAIL, + "Failed to initialize defrag." + "Not starting rebalance process for " + "%s.", + volinfo->volname); + gf_event(EVENT_REBALANCE_START_FAILED, "volume=%s", + volinfo->volname); + goto out; + } + ret = glusterd_rebalance_rpc_create(volinfo); + break; + } + case GF_DEFRAG_STATUS_NOT_STARTED: + ret = glusterd_handle_defrag_start(volinfo, op_errstr, len, cmd, + cbk, volinfo->rebal.op); + if (ret) { + volinfo->rebal.defrag_status = GF_DEFRAG_STATUS_FAILED; + gf_event(EVENT_REBALANCE_START_FAILED, "volume=%s", + volinfo->volname); + } + break; + default: + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_REBALANCE_START_FAIL, + "Unknown defrag status (%d)." + "Not starting rebalance process for %s.", + volinfo->rebal.defrag_status, volinfo->volname); + break; + } +out: + return ret; +} + +void +glusterd_defrag_info_set(glusterd_volinfo_t *volinfo, dict_t *dict, int cmd, + int status, int op) +{ + xlator_t *this = NULL; + int ret = -1; + char *task_id_str = NULL; + glusterd_rebalance_t *rebal = NULL; + + this = THIS; + rebal = &volinfo->rebal; + + rebal->defrag_cmd = cmd; + rebal->defrag_status = status; + rebal->op = op; + + if (gf_uuid_is_null(rebal->rebalance_id)) + return; + + if (is_origin_glusterd(dict)) { + ret = glusterd_generate_and_set_task_id(dict, GF_REBALANCE_TID_KEY, + SLEN(GF_REBALANCE_TID_KEY)); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_TASKID_GEN_FAIL, + "Failed to generate task-id"); + goto out; + } + } + ret = dict_get_strn(dict, GF_REBALANCE_TID_KEY, SLEN(GF_REBALANCE_TID_KEY), + &task_id_str); + if (ret) { + gf_msg(this->name, GF_LOG_WARNING, 0, GD_MSG_REBALANCE_ID_MISSING, + "Missing rebalance-id"); + ret = 0; + goto out; + } + + gf_uuid_parse(task_id_str, rebal->rebalance_id); +out: + + if (ret) { + gf_msg_debug(this->name, 0, "Rebalance start validate failed"); + } + return; +} + +int +glusterd_restart_rebalance_for_volume(glusterd_volinfo_t *volinfo) +{ + int ret = -1; + char op_errstr[PATH_MAX] = ""; + + if (!gd_should_i_start_rebalance(volinfo)) { + /* Store the rebalance-id and rebalance command even if + * the peer isn't starting a rebalance process. On peers + * where a rebalance process is started, + * glusterd_handle_defrag_start performs the storing. + * + * Storing this is needed for having 'volume status' + * work correctly. + */ + volinfo->rebal.defrag_status = GF_DEFRAG_STATUS_NOT_STARTED; + return 0; + } + if (!volinfo->rebal.defrag_cmd) { + volinfo->rebal.defrag_status = GF_DEFRAG_STATUS_FAILED; + return -1; + } + + ret = glusterd_volume_defrag_restart(volinfo, op_errstr, PATH_MAX, + volinfo->rebal.defrag_cmd, + volinfo->rebal.op == GD_OP_REMOVE_BRICK + ? glusterd_remove_brick_migrate_cbk + : NULL); + if (!ret) { + /* If remove brick is started then ensure that on a glusterd + * restart decommission_is_in_progress is set to avoid remove + * brick commit to happen when rebalance is not completed. + */ + if (volinfo->rebal.op == GD_OP_REMOVE_BRICK && + volinfo->rebal.defrag_status == GF_DEFRAG_STATUS_STARTED) { + volinfo->decommission_in_progress = 1; + } + } + return ret; +} +int +glusterd_restart_rebalance(glusterd_conf_t *conf) +{ + glusterd_volinfo_t *volinfo = NULL; + int ret = 0; + + cds_list_for_each_entry(volinfo, &conf->volumes, vol_list) + { + glusterd_restart_rebalance_for_volume(volinfo); + } + return ret; +} + +void +glusterd_volinfo_reset_defrag_stats(glusterd_volinfo_t *volinfo) +{ + glusterd_rebalance_t *rebal = NULL; + GF_ASSERT(volinfo); + + rebal = &volinfo->rebal; + rebal->rebalance_files = 0; + rebal->rebalance_data = 0; + rebal->lookedup_files = 0; + rebal->rebalance_failures = 0; + rebal->rebalance_time = 0; + rebal->skipped_files = 0; +} + +gf_boolean_t +glusterd_is_local_brick(xlator_t *this, glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo) +{ + gf_boolean_t local = _gf_false; + int ret = 0; + + if (gf_uuid_is_null(brickinfo->uuid)) { + ret = glusterd_resolve_brick(brickinfo); + if (ret) + goto out; + } + local = !gf_uuid_compare(brickinfo->uuid, MY_UUID); +out: + return local; +} +int +glusterd_validate_volume_id(dict_t *op_dict, glusterd_volinfo_t *volinfo) +{ + int ret = -1; + char *volid_str = NULL; + uuid_t vol_uid = { + 0, + }; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + + ret = dict_get_strn(op_dict, "vol-id", SLEN("vol-id"), &volid_str); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get volume id for " + "volume %s", + volinfo->volname); + goto out; + } + ret = gf_uuid_parse(volid_str, vol_uid); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_UUID_PARSE_FAIL, + "Failed to parse volume id " + "for volume %s", + volinfo->volname); + goto out; + } + + if (gf_uuid_compare(vol_uid, volinfo->volume_id)) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_VOL_ID_MISMATCH, + "Volume ids of volume %s - %s" + " and %s - are different. Possibly a split brain among " + "peers.", + volinfo->volname, volid_str, uuid_utoa(volinfo->volume_id)); + ret = -1; + goto out; + } + +out: + return ret; +} + +int +glusterd_defrag_volume_status_update(glusterd_volinfo_t *volinfo, + dict_t *rsp_dict, int32_t cmd) +{ + int ret = 0; + int ret2 = 0; + uint64_t files = 0; + uint64_t size = 0; + uint64_t lookup = 0; + gf_defrag_status_t status = GF_DEFRAG_STATUS_NOT_STARTED; + uint64_t failures = 0; + uint64_t skipped = 0; + xlator_t *this = NULL; + double run_time = 0; + uint64_t promoted = 0; + uint64_t demoted = 0; + uint64_t time_left = 0; + + this = THIS; + + ret = dict_get_uint64(rsp_dict, "files", &files); + if (ret) + gf_msg_trace(this->name, 0, "failed to get file count"); + + ret = dict_get_uint64(rsp_dict, "size", &size); + if (ret) + gf_msg_trace(this->name, 0, "failed to get size of xfer"); + + ret = dict_get_uint64(rsp_dict, "lookups", &lookup); + if (ret) + gf_msg_trace(this->name, 0, "failed to get lookedup file count"); + + ret = dict_get_int32n(rsp_dict, "status", SLEN("status"), + (int32_t *)&status); + if (ret) + gf_msg_trace(this->name, 0, "failed to get status"); + + ret = dict_get_uint64(rsp_dict, "failures", &failures); + if (ret) + gf_msg_trace(this->name, 0, "failed to get failure count"); + + ret = dict_get_uint64(rsp_dict, "skipped", &skipped); + if (ret) + gf_msg_trace(this->name, 0, "failed to get skipped count"); + + ret = dict_get_uint64(rsp_dict, "promoted", &promoted); + if (ret) + gf_msg_trace(this->name, 0, "failed to get promoted count"); + + ret = dict_get_uint64(rsp_dict, "demoted", &demoted); + if (ret) + gf_msg_trace(this->name, 0, "failed to get demoted count"); + + ret = dict_get_double(rsp_dict, "run-time", &run_time); + if (ret) + gf_msg_trace(this->name, 0, "failed to get run-time"); + + ret2 = dict_get_uint64(rsp_dict, "time-left", &time_left); + if (ret2) + gf_msg_trace(this->name, 0, "failed to get time left"); + + if (files) + volinfo->rebal.rebalance_files = files; + if (size) + volinfo->rebal.rebalance_data = size; + if (lookup) + volinfo->rebal.lookedup_files = lookup; + if (status) + volinfo->rebal.defrag_status = status; + if (failures) + volinfo->rebal.rebalance_failures = failures; + if (skipped) + volinfo->rebal.skipped_files = skipped; + if (run_time) + volinfo->rebal.rebalance_time = run_time; + if (!ret2) + volinfo->rebal.time_left = time_left; + + return ret; +} + +int +glusterd_check_topology_identical(const char *filename1, const char *filename2, + gf_boolean_t *identical) +{ + int ret = -1; /* FAILURE */ + xlator_t *this = THIS; + FILE *fp1 = NULL; + FILE *fp2 = NULL; + glusterfs_graph_t *grph1 = NULL; + glusterfs_graph_t *grph2 = NULL; + + /* Invalid xlator, Nothing to do */ + if (!this) + return (-1); + + /* Sanitize the inputs */ + GF_VALIDATE_OR_GOTO(this->name, filename1, out); + GF_VALIDATE_OR_GOTO(this->name, filename2, out); + GF_VALIDATE_OR_GOTO(this->name, identical, out); + + /* fopen() the volfile1 to create the graph */ + fp1 = fopen(filename1, "r"); + if (fp1 == NULL) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "fopen() on file: %s failed " + "(%s)", + filename1, strerror(errno)); + goto out; + } + + /* fopen() the volfile2 to create the graph */ + fp2 = fopen(filename2, "r"); + if (fp2 == NULL) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "fopen() on file: %s failed " + "(%s)", + filename2, strerror(errno)); + goto out; + } + + /* create the graph for filename1 */ + grph1 = glusterfs_graph_construct(fp1); + if (grph1 == NULL) + goto out; + + /* create the graph for filename2 */ + grph2 = glusterfs_graph_construct(fp2); + if (grph2 == NULL) + goto out; + + /* compare the graph topology */ + *identical = is_graph_topology_equal(grph1, grph2); + ret = 0; /* SUCCESS */ +out: + if (fp1) + fclose(fp1); + if (fp2) + fclose(fp2); + if (grph1) + glusterfs_graph_destroy(grph1); + if (grph2) + glusterfs_graph_destroy(grph2); + + gf_msg_debug(this->name, 0, "Returning with %d", ret); + return ret; +} + +int +glusterd_check_files_identical(char *filename1, char *filename2, + gf_boolean_t *identical) +{ + int ret = -1; + struct stat buf1 = { + 0, + }; + struct stat buf2 = { + 0, + }; + uint32_t cksum1 = 0; + uint32_t cksum2 = 0; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + GF_ASSERT(filename1); + GF_ASSERT(filename2); + GF_ASSERT(identical); + + this = THIS; + GF_VALIDATE_OR_GOTO("glusterd", this, out); + priv = this->private; + GF_VALIDATE_OR_GOTO(this->name, priv, out); + + ret = sys_stat(filename1, &buf1); + + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "stat on file: %s failed " + "(%s)", + filename1, strerror(errno)); + goto out; + } + + ret = sys_stat(filename2, &buf2); + + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_FILE_OP_FAILED, + "stat on file: %s failed " + "(%s)", + filename2, strerror(errno)); + goto out; + } + + if (buf1.st_size != buf2.st_size) { + *identical = _gf_false; + goto out; + } + + ret = get_checksum_for_path(filename1, &cksum1, priv->op_version); + if (ret) + goto out; + + ret = get_checksum_for_path(filename2, &cksum2, priv->op_version); + if (ret) + goto out; + + if (cksum1 != cksum2) + *identical = _gf_false; + else + *identical = _gf_true; + +out: + gf_msg_debug(this->name, 0, "Returning with %d", ret); + return ret; +} + +int +glusterd_volset_help(dict_t *dict, char **op_errstr) +{ + int ret = -1; + gf_boolean_t xml_out = _gf_false; +#if (!HAVE_LIB_XML) + xlator_t *this = NULL; + + this = THIS; +#endif + + if (!dict) { + if (!(dict = glusterd_op_get_ctx())) { + ret = 0; + goto out; + } + } + + if (dict_getn(dict, "help", SLEN("help"))) { + xml_out = _gf_false; + + } else if (dict_getn(dict, "help-xml", SLEN("help-xml"))) { + xml_out = _gf_true; +#if (HAVE_LIB_XML) + ret = 0; +#else + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_MODULE_NOT_INSTALLED, + "libxml not present in the system"); + if (op_errstr) + *op_errstr = gf_strdup( + "Error: xml libraries not " + "present to produce " + "xml-output"); + goto out; +#endif + + } else { + goto out; + } + + ret = glusterd_get_volopt_content(dict, xml_out); + if (ret && op_errstr) + *op_errstr = gf_strdup("Failed to get volume options help"); +out: + + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +int +glusterd_to_cli(rpcsvc_request_t *req, gf_cli_rsp *arg, struct iovec *payload, + int payloadcount, struct iobref *iobref, xdrproc_t xdrproc, + dict_t *dict) +{ + int ret = -1; + char *cmd = NULL; + int op_ret = 0; + char *op_errstr = NULL; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + + op_ret = arg->op_ret; + op_errstr = arg->op_errstr; + + ret = dict_get_strn(dict, "cmd-str", SLEN("cmd-str"), &cmd); + if (ret) + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get command " + "string"); + + if (cmd) { + if (op_ret) + gf_cmd_log("", "%s : FAILED %s %s", cmd, (op_errstr) ? ":" : " ", + (op_errstr) ? op_errstr : " "); + else + gf_cmd_log("", "%s : SUCCESS", cmd); + } + + glusterd_submit_reply(req, arg, payload, payloadcount, iobref, + (xdrproc_t)xdrproc); + + if (dict) { + dict_unref(dict); + } + return ret; +} + +static int32_t +glusterd_append_gsync_status(dict_t *dst, dict_t *src) +{ + int ret = 0; + char *stop_msg = NULL; + + ret = dict_get_strn(src, "gsync-status", SLEN("gsync-status"), &stop_msg); + if (ret) { + gf_smsg("glusterd", GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=gsync-status", NULL); + ret = 0; + goto out; + } + + ret = dict_set_dynstr_with_alloc(dst, "gsync-status", stop_msg); + if (ret) { + gf_msg("glusterd", GF_LOG_WARNING, 0, GD_MSG_DICT_SET_FAILED, + "Unable to set the stop" + "message in the ctx dictionary"); + goto out; + } + + ret = 0; +out: + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +int32_t +glusterd_append_status_dicts(dict_t *dst, dict_t *src) +{ + char sts_val_name[PATH_MAX] = ""; + int dst_count = 0; + int src_count = 0; + int i = 0; + int ret = 0; + gf_gsync_status_t *sts_val = NULL; + gf_gsync_status_t *dst_sts_val = NULL; + + GF_ASSERT(dst); + + if (src == NULL) + goto out; + + ret = dict_get_int32n(dst, "gsync-count", SLEN("gsync-count"), &dst_count); + if (ret) + dst_count = 0; + + ret = dict_get_int32n(src, "gsync-count", SLEN("gsync-count"), &src_count); + if (ret || !src_count) { + gf_msg_debug("glusterd", 0, "Source brick empty"); + ret = 0; + goto out; + } + + for (i = 0; i < src_count; i++) { + snprintf(sts_val_name, sizeof(sts_val_name), "status_value%d", i); + + ret = dict_get_bin(src, sts_val_name, (void **)&sts_val); + if (ret) + goto out; + + dst_sts_val = GF_MALLOC(sizeof(gf_gsync_status_t), + gf_common_mt_gsync_status_t); + if (!dst_sts_val) { + gf_msg("glusterd", GF_LOG_ERROR, ENOMEM, GD_MSG_NO_MEMORY, + "Out Of Memory"); + goto out; + } + + memcpy(dst_sts_val, sts_val, sizeof(gf_gsync_status_t)); + + snprintf(sts_val_name, sizeof(sts_val_name), "status_value%d", + i + dst_count); + + ret = dict_set_bin(dst, sts_val_name, dst_sts_val, + sizeof(gf_gsync_status_t)); + if (ret) { + GF_FREE(dst_sts_val); + goto out; + } + } + + ret = dict_set_int32n(dst, "gsync-count", SLEN("gsync-count"), + dst_count + src_count); + +out: + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +int32_t +glusterd_aggr_brick_mount_dirs(dict_t *aggr, dict_t *rsp_dict) +{ + char key[64] = ""; + int keylen; + char *brick_mount_dir = NULL; + int32_t brick_count = -1; + int32_t ret = -1; + int32_t i = -1; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + GF_ASSERT(aggr); + GF_ASSERT(rsp_dict); + + ret = dict_get_int32n(rsp_dict, "brick_count", SLEN("brick_count"), + &brick_count); + if (ret) { + gf_msg_debug(this->name, 0, "No brick_count present"); + ret = 0; + goto out; + } + + for (i = 1; i <= brick_count; i++) { + brick_mount_dir = NULL; + keylen = snprintf(key, sizeof(key), "brick%d.mount_dir", i); + ret = dict_get_strn(rsp_dict, key, keylen, &brick_mount_dir); + if (ret) { + /* Coz the info will come from a different node */ + gf_msg_debug(this->name, 0, "%s not present", key); + continue; + } + + ret = dict_set_dynstr_with_alloc(aggr, key, brick_mount_dir); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set %s", key); + goto out; + } + } + + ret = 0; +out: + gf_msg_trace(this->name, 0, "Returning %d ", ret); + return ret; +} + +int32_t +glusterd_gsync_use_rsp_dict(dict_t *aggr, dict_t *rsp_dict, char *op_errstr) +{ + dict_t *ctx = NULL; + int ret = 0; + char *conf_path = NULL; + + if (aggr) { + ctx = aggr; + + } else { + ctx = glusterd_op_get_ctx(); + if (!ctx) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_OPCTX_GET_FAIL, + "Operation Context is not present"); + GF_ASSERT(0); + } + } + + if (rsp_dict) { + ret = glusterd_append_status_dicts(ctx, rsp_dict); + if (ret) + goto out; + + ret = glusterd_append_gsync_status(ctx, rsp_dict); + if (ret) + goto out; + + ret = dict_get_strn(rsp_dict, "conf_path", SLEN("conf_path"), + &conf_path); + if (!ret && conf_path) { + ret = dict_set_dynstr_with_alloc(ctx, "conf_path", conf_path); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Unable to store conf path."); + goto out; + } + } + } + if ((op_errstr) && (strcmp("", op_errstr))) { + ret = dict_set_dynstr_with_alloc(ctx, "errstr", op_errstr); + if (ret) + goto out; + } + + ret = 0; +out: + gf_msg_debug("glusterd", 0, "Returning %d ", ret); + return ret; +} + +int32_t +glusterd_rb_use_rsp_dict(dict_t *aggr, dict_t *rsp_dict) +{ + int32_t src_port = 0; + int32_t dst_port = 0; + int ret = 0; + dict_t *ctx = NULL; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + + if (aggr) { + ctx = aggr; + + } else { + ctx = glusterd_op_get_ctx(); + if (!ctx) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_OPCTX_GET_FAIL, + "Operation Context is not present"); + GF_ASSERT(0); + } + } + + if (rsp_dict) { + ret = dict_get_int32n(rsp_dict, "src-brick-port", + SLEN("src-brick-port"), &src_port); + if (ret == 0) { + gf_msg_debug("glusterd", 0, "src-brick-port=%d found", src_port); + } + + ret = dict_get_int32n(rsp_dict, "dst-brick-port", + SLEN("dst-brick-port"), &dst_port); + if (ret == 0) { + gf_msg_debug("glusterd", 0, "dst-brick-port=%d found", dst_port); + } + + ret = glusterd_aggr_brick_mount_dirs(ctx, rsp_dict); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICK_MOUNDIRS_AGGR_FAIL, + "Failed to " + "aggregate brick mount dirs"); + goto out; + } + } + + if (src_port) { + ret = dict_set_int32n(ctx, "src-brick-port", SLEN("src-brick-port"), + src_port); + if (ret) { + gf_msg_debug("glusterd", 0, "Could not set src-brick"); + goto out; + } + } + + if (dst_port) { + ret = dict_set_int32n(ctx, "dst-brick-port", SLEN("dst-brick-port"), + dst_port); + if (ret) { + gf_msg_debug("glusterd", 0, "Could not set dst-brick"); + goto out; + } + } + +out: + return ret; +} + +int32_t +glusterd_sync_use_rsp_dict(dict_t *aggr, dict_t *rsp_dict) +{ + int ret = 0; + + GF_ASSERT(rsp_dict); + xlator_t *this = THIS; + GF_ASSERT(this); + + if (!rsp_dict) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_CREATE_FAIL, NULL); + goto out; + } + + ret = glusterd_import_friend_volumes(rsp_dict); +out: + return ret; +} + +static int +_profile_volume_add_friend_rsp(dict_t *this, char *key, data_t *value, + void *data) +{ + char new_key[264] = ""; + int new_key_len; + glusterd_pr_brick_rsp_conv_t *rsp_ctx = NULL; + data_t *new_value = NULL; + int brick_count = 0; + char brick_key[256] = ""; + + if (strcmp(key, "count") == 0) + return 0; + sscanf(key, "%d%s", &brick_count, brick_key); + rsp_ctx = data; + new_value = data_copy(value); + GF_ASSERT(new_value); + new_key_len = snprintf(new_key, sizeof(new_key), "%d%s", + rsp_ctx->count + brick_count, brick_key); + dict_setn(rsp_ctx->dict, new_key, new_key_len, new_value); + return 0; +} + +int +glusterd_profile_volume_use_rsp_dict(dict_t *aggr, dict_t *rsp_dict) +{ + int ret = 0; + glusterd_pr_brick_rsp_conv_t rsp_ctx = {0}; + int32_t brick_count = 0; + int32_t count = 0; + dict_t *ctx_dict = NULL; + xlator_t *this = NULL; + + GF_ASSERT(rsp_dict); + this = THIS; + GF_ASSERT(this); + + ret = dict_get_int32n(rsp_dict, "count", SLEN("count"), &brick_count); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Key=count", NULL); + ret = 0; // no bricks in the rsp + goto out; + } + if (aggr) { + ctx_dict = aggr; + + } else { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_OPCTX_GET_FAIL, + "Operation Context is not present"); + ret = -1; + goto out; + } + + ret = dict_get_int32n(ctx_dict, "count", SLEN("count"), &count); + rsp_ctx.count = count; + rsp_ctx.dict = ctx_dict; + dict_foreach(rsp_dict, _profile_volume_add_friend_rsp, &rsp_ctx); + ret = dict_set_int32n(ctx_dict, "count", SLEN("count"), + count + brick_count); +out: + return ret; +} + +static int +glusterd_volume_status_add_peer_rsp(dict_t *this, char *key, data_t *value, + void *data) +{ + glusterd_status_rsp_conv_t *rsp_ctx = NULL; + data_t *new_value = NULL; + char brick_key[1024] = ""; + char new_key[1024] = ""; + int32_t index = 0; + int32_t ret = -1; + int32_t len = 0; + + /* Skip the following keys, they are already present in the ctx_dict */ + /* Also, skip all the task related pairs. They will be added to the + * ctx_dict later + */ + if (!strcmp(key, "count") || !strcmp(key, "cmd") || + !strcmp(key, "brick-index-max") || !strcmp(key, "other-count") || + !strncmp(key, "task", 4)) + return 0; + + rsp_ctx = data; + new_value = data_copy(value); + GF_ASSERT(new_value); + + sscanf(key, "brick%d.%s", &index, brick_key); + + if (index > rsp_ctx->brick_index_max) { + len = snprintf(new_key, sizeof(new_key), "brick%d.%s", + index + rsp_ctx->other_count, brick_key); + } else { + len = snprintf(new_key, sizeof(new_key), "%s", key); + } + if (len < 0 || len >= sizeof(new_key)) + goto out; + + ret = dict_setn(rsp_ctx->dict, new_key, len, new_value); +out: + if (ret) { + data_unref(new_value); + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Unable to set key: %s in dict", key); + } + + return 0; +} + +static int +glusterd_volume_status_copy_tasks_to_ctx_dict(dict_t *this, char *key, + data_t *value, void *data) +{ + int ret = 0; + dict_t *ctx_dict = NULL; + data_t *new_value = NULL; + + if (strncmp(key, "task", 4)) + return 0; + + ctx_dict = data; + GF_ASSERT(ctx_dict); + + new_value = data_copy(value); + GF_ASSERT(new_value); + + ret = dict_set(ctx_dict, key, new_value); + + return ret; +} + +int +glusterd_volume_status_aggregate_tasks_status(dict_t *ctx_dict, + dict_t *rsp_dict) +{ + int ret = -1; + xlator_t *this = NULL; + int local_count = 0; + int remote_count = 0; + int i = 0; + int j = 0; + char key[128] = ""; + int keylen; + char *task_type = NULL; + int local_status = 0; + int remote_status = 0; + char *local_task_id = NULL; + char *remote_task_id = NULL; + + GF_ASSERT(ctx_dict); + GF_ASSERT(rsp_dict); + + this = THIS; + GF_ASSERT(this); + + ret = dict_get_int32n(rsp_dict, "tasks", SLEN("tasks"), &remote_count); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get remote task count"); + goto out; + } + /* Local count will not be present when this is called for the first + * time with the origins rsp_dict + */ + ret = dict_get_int32n(ctx_dict, "tasks", SLEN("tasks"), &local_count); + if (ret) { + ret = dict_foreach( + rsp_dict, glusterd_volume_status_copy_tasks_to_ctx_dict, ctx_dict); + if (ret) + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to copy tasks" + "to ctx_dict."); + goto out; + } + + if (local_count != remote_count) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_TASKS_COUNT_MISMATCH, + "Local tasks count (%d) and " + "remote tasks count (%d) do not match. Not aggregating " + "tasks status.", + local_count, remote_count); + ret = -1; + goto out; + } + + /* Update the tasks statuses. For every remote tasks, search for the + * local task, and update the local task status based on the remote + * status. + */ + for (i = 0; i < remote_count; i++) { + keylen = snprintf(key, sizeof(key), "task%d.type", i); + ret = dict_get_strn(rsp_dict, key, keylen, &task_type); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get task typpe from rsp dict"); + goto out; + } + + /* Skip replace-brick status as it is going to be the same on + * all peers. rb_status is set by the replace brick commit + * function on all peers based on the replace brick command. + * We return the value of rb_status as the status for a + * replace-brick task in a 'volume status' command. + */ + if (!strcmp(task_type, "Replace brick")) + continue; + + keylen = snprintf(key, sizeof(key), "task%d.status", i); + ret = dict_get_int32n(rsp_dict, key, keylen, &remote_status); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get task status from rsp dict"); + goto out; + } + keylen = snprintf(key, sizeof(key), "task%d.id", i); + ret = dict_get_strn(rsp_dict, key, keylen, &remote_task_id); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get task id from rsp dict"); + goto out; + } + for (j = 0; j < local_count; j++) { + keylen = snprintf(key, sizeof(key), "task%d.id", j); + ret = dict_get_strn(ctx_dict, key, keylen, &local_task_id); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get local task-id"); + goto out; + } + + if (strncmp(remote_task_id, local_task_id, + strlen(remote_task_id))) { + /* Quit if a matching local task is not found */ + if (j == (local_count - 1)) { + gf_msg(this->name, GF_LOG_ERROR, 0, + GD_MSG_TASKS_COUNT_MISMATCH, + "Could not find matching local " + "task for task %s", + remote_task_id); + goto out; + } + continue; + } + + keylen = snprintf(key, sizeof(key), "task%d.status", j); + ret = dict_get_int32n(ctx_dict, key, keylen, &local_status); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get local task status"); + goto out; + } + + /* Rebalance has 5 states, + * NOT_STARTED, STARTED, STOPPED, COMPLETE, FAILED + * The precedence used to determine the aggregate status + * is as below, + * STARTED > FAILED > STOPPED > COMPLETE > NOT_STARTED + */ + /* TODO: Move this to a common place utilities that both + * CLI and glusterd need. + * Till then if the below algorithm is changed, change + * it in cli_xml_output_vol_rebalance_status in + * cli-xml-output.c + */ + ret = 0; + int rank[] = {[GF_DEFRAG_STATUS_STARTED] = 1, + [GF_DEFRAG_STATUS_FAILED] = 2, + [GF_DEFRAG_STATUS_STOPPED] = 3, + [GF_DEFRAG_STATUS_COMPLETE] = 4, + [GF_DEFRAG_STATUS_NOT_STARTED] = 5}; + if (rank[remote_status] <= rank[local_status]) + ret = dict_set_int32n(ctx_dict, key, keylen, remote_status); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, + GD_MSG_TASK_STATUS_UPDATE_FAIL, + "Failed to " + "update task status"); + goto out; + } + break; + } + } + +out: + return ret; +} + +gf_boolean_t +glusterd_status_has_tasks(int cmd) +{ + if (((cmd & GF_CLI_STATUS_MASK) == GF_CLI_STATUS_NONE) && + (cmd & GF_CLI_STATUS_VOL)) + return _gf_true; + return _gf_false; +} + +int +glusterd_volume_status_copy_to_op_ctx_dict(dict_t *aggr, dict_t *rsp_dict) +{ + int ret = 0; + glusterd_status_rsp_conv_t rsp_ctx = {0}; + int32_t cmd = GF_CLI_STATUS_NONE; + int32_t node_count = 0; + int32_t other_count = 0; + int32_t brick_index_max = -1; + int32_t hot_brick_count = -1; + int32_t type = -1; + int32_t rsp_node_count = 0; + int32_t rsp_other_count = 0; + int vol_count = -1; + int i = 0; + dict_t *ctx_dict = NULL; + char key[64] = ""; + int keylen; + char *volname = NULL; + glusterd_volinfo_t *volinfo = NULL; + + GF_ASSERT(rsp_dict); + xlator_t *this = THIS; + GF_ASSERT(this); + + if (aggr) { + ctx_dict = aggr; + + } else { + ctx_dict = glusterd_op_get_ctx(GD_OP_STATUS_VOLUME); + } + + ret = dict_get_int32n(ctx_dict, "cmd", SLEN("cmd"), &cmd); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, "Key=cmd", + NULL); + goto out; + } + + if (cmd & GF_CLI_STATUS_ALL && is_origin_glusterd(ctx_dict)) { + ret = dict_get_int32n(rsp_dict, "vol_count", SLEN("vol_count"), + &vol_count); + if (ret == 0) { + ret = dict_set_int32n(ctx_dict, "vol_count", SLEN("vol_count"), + vol_count); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Key=vol_count", NULL); + goto out; + } + + for (i = 0; i < vol_count; i++) { + keylen = snprintf(key, sizeof(key), "vol%d", i); + ret = dict_get_strn(rsp_dict, key, keylen, &volname); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Key=%s", key, NULL); + goto out; + } + + ret = dict_set_strn(ctx_dict, key, keylen, volname); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Key=%s", key, NULL); + goto out; + } + } + } else { + /* Ignore the error as still the aggregation applies in + * case its a task sub command */ + ret = 0; + } + } + + if ((cmd & GF_CLI_STATUS_TASKS) != 0) + goto aggregate_tasks; + + ret = dict_get_int32n(rsp_dict, "count", SLEN("count"), &rsp_node_count); + if (ret) { + gf_smsg(this->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, "Key=count", + NULL); + ret = 0; // no bricks in the rsp + goto out; + } + + ret = dict_get_int32n(rsp_dict, "other-count", SLEN("other-count"), + &rsp_other_count); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Key=other-count", NULL); + goto out; + } + + ret = dict_get_int32n(ctx_dict, "count", SLEN("count"), &node_count); + ret = dict_get_int32n(ctx_dict, "other-count", SLEN("other-count"), + &other_count); + if (!dict_getn(ctx_dict, "brick-index-max", SLEN("brick-index-max"))) { + ret = dict_get_int32n(rsp_dict, "brick-index-max", + SLEN("brick-index-max"), &brick_index_max); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Key=brick-index-max", NULL); + goto out; + } + ret = dict_set_int32n(ctx_dict, "brick-index-max", + SLEN("brick-index-max"), brick_index_max); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Key=brick-index-max", NULL); + goto out; + } + + } else { + ret = dict_get_int32n(ctx_dict, "brick-index-max", + SLEN("brick-index-max"), &brick_index_max); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Key=brick-index-max", NULL); + goto out; + } + } + + rsp_ctx.count = node_count; + rsp_ctx.brick_index_max = brick_index_max; + rsp_ctx.other_count = other_count; + rsp_ctx.dict = ctx_dict; + + dict_foreach(rsp_dict, glusterd_volume_status_add_peer_rsp, &rsp_ctx); + + ret = dict_set_int32n(ctx_dict, "count", SLEN("count"), + node_count + rsp_node_count); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Key=count", NULL); + goto out; + } + + ret = dict_set_int32n(ctx_dict, "other-count", SLEN("other-count"), + (other_count + rsp_other_count)); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Key=other-count", NULL); + goto out; + } + + ret = dict_get_strn(ctx_dict, "volname", SLEN("volname"), &volname); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Key=volname", NULL); + goto out; + } + + ret = glusterd_volinfo_find(volname, &volinfo); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_VOLINFO_GET_FAIL, + "Volume=%s", volname, NULL); + goto out; + } + + ret = dict_set_int32n(ctx_dict, "hot_brick_count", SLEN("hot_brick_count"), + hot_brick_count); + if (ret) { + gf_smsg(THIS->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=hot_brick_count", NULL); + goto out; + } + + ret = dict_set_int32n(ctx_dict, "type", SLEN("type"), type); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Key=type", NULL); + goto out; + } + +aggregate_tasks: + /* Tasks are only present for a normal status command for a volume or + * for an explicit tasks status command for a volume + */ + if (!(cmd & GF_CLI_STATUS_ALL) && + (((cmd & GF_CLI_STATUS_TASKS) != 0) || glusterd_status_has_tasks(cmd))) + ret = glusterd_volume_status_aggregate_tasks_status(ctx_dict, rsp_dict); + +out: + return ret; +} + +int +glusterd_max_opversion_use_rsp_dict(dict_t *dst, dict_t *src) +{ + int ret = -1; + int src_max_opversion = -1; + int max_opversion = -1; + + GF_VALIDATE_OR_GOTO(THIS->name, dst, out); + GF_VALIDATE_OR_GOTO(THIS->name, src, out); + + ret = dict_get_int32n(dst, "max-opversion", SLEN("max-opversion"), + &max_opversion); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Maximum supported op-version not set in destination " + "dictionary"); + + ret = dict_get_int32n(src, "max-opversion", SLEN("max-opversion"), + &src_max_opversion); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get maximum supported op-version from source"); + goto out; + } + + if (max_opversion == -1 || src_max_opversion < max_opversion) + max_opversion = src_max_opversion; + + ret = dict_set_int32n(dst, "max-opversion", SLEN("max-opversion"), + max_opversion); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set max op-version"); + goto out; + } +out: + return ret; +} + +int +glusterd_volume_bitrot_scrub_use_rsp_dict(dict_t *aggr, dict_t *rsp_dict) +{ + int ret = -1; + int j = 0; + uint64_t value = 0; + char key[64] = ""; + int keylen; + char *last_scrub_time = NULL; + char *scrub_time = NULL; + char *volname = NULL; + char *node_uuid = NULL; + char *node_uuid_str = NULL; + char *bitd_log = NULL; + char *scrub_log = NULL; + char *scrub_freq = NULL; + char *scrub_state = NULL; + char *scrub_impact = NULL; + char *bad_gfid_str = NULL; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + glusterd_volinfo_t *volinfo = NULL; + int src_count = 0; + int dst_count = 0; + int8_t scrub_running = 0; + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GF_ASSERT(priv); + + ret = dict_get_strn(aggr, "volname", SLEN("volname"), &volname); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to get volume name"); + goto out; + } + + ret = glusterd_volinfo_find(volname, &volinfo); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_VOL_NOT_FOUND, + "Unable to find volinfo for volume: %s", volname); + goto out; + } + + ret = dict_get_int32n(aggr, "count", SLEN("count"), &dst_count); + + ret = dict_get_int32n(rsp_dict, "count", SLEN("count"), &src_count); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "failed to get count value"); + ret = 0; + goto out; + } + + ret = dict_set_int32n(aggr, "count", SLEN("count"), src_count + dst_count); + if (ret) + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set count in dictonary"); + + keylen = snprintf(key, sizeof(key), "node-uuid-%d", src_count); + ret = dict_get_strn(rsp_dict, key, keylen, &node_uuid); + if (!ret) { + node_uuid_str = gf_strdup(node_uuid); + keylen = snprintf(key, sizeof(key), "node-uuid-%d", + src_count + dst_count); + ret = dict_set_dynstrn(aggr, key, keylen, node_uuid_str); + if (ret) { + gf_msg_debug(this->name, 0, "failed to set node-uuid"); + } + } + + snprintf(key, sizeof(key), "scrub-running-%d", src_count); + ret = dict_get_int8(rsp_dict, key, &scrub_running); + if (!ret) { + snprintf(key, sizeof(key), "scrub-running-%d", src_count + dst_count); + ret = dict_set_int8(aggr, key, scrub_running); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrub-running value"); + } + } + + snprintf(key, sizeof(key), "scrubbed-files-%d", src_count); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "scrubbed-files-%d", src_count + dst_count); + ret = dict_set_uint64(aggr, key, value); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrubbed-file value"); + } + } + + snprintf(key, sizeof(key), "unsigned-files-%d", src_count); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "unsigned-files-%d", src_count + dst_count); + ret = dict_set_uint64(aggr, key, value); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "unsigned-file value"); + } + } + + keylen = snprintf(key, sizeof(key), "last-scrub-time-%d", src_count); + ret = dict_get_strn(rsp_dict, key, keylen, &last_scrub_time); + if (!ret) { + scrub_time = gf_strdup(last_scrub_time); + keylen = snprintf(key, sizeof(key), "last-scrub-time-%d", + src_count + dst_count); + ret = dict_set_dynstrn(aggr, key, keylen, scrub_time); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "last scrub time value"); + } + } + + snprintf(key, sizeof(key), "scrub-duration-%d", src_count); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "scrub-duration-%d", src_count + dst_count); + ret = dict_set_uint64(aggr, key, value); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrubbed-duration value"); + } + } + + snprintf(key, sizeof(key), "error-count-%d", src_count); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "error-count-%d", src_count + dst_count); + ret = dict_set_uint64(aggr, key, value); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set error " + "count value"); + } + + /* Storing all the bad files in the dictionary */ + for (j = 0; j < value; j++) { + keylen = snprintf(key, sizeof(key), "quarantine-%d-%d", j, + src_count); + ret = dict_get_strn(rsp_dict, key, keylen, &bad_gfid_str); + if (!ret) { + snprintf(key, sizeof(key), "quarantine-%d-%d", j, + src_count + dst_count); + ret = dict_set_dynstr_with_alloc(aggr, key, bad_gfid_str); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to" + "bad file gfid "); + } + } + } + } + + ret = dict_get_strn(rsp_dict, "bitrot_log_file", SLEN("bitrot_log_file"), + &bitd_log); + if (!ret) { + ret = dict_set_dynstr_with_alloc(aggr, "bitrot_log_file", bitd_log); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "bitrot log file location"); + goto out; + } + } + + ret = dict_get_strn(rsp_dict, "scrub_log_file", SLEN("scrub_log_file"), + &scrub_log); + if (!ret) { + ret = dict_set_dynstr_with_alloc(aggr, "scrub_log_file", scrub_log); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrubber log file location"); + goto out; + } + } + + ret = dict_get_strn(rsp_dict, "features.scrub-freq", + SLEN("features.scrub-freq"), &scrub_freq); + if (!ret) { + ret = dict_set_dynstr_with_alloc(aggr, "features.scrub-freq", + scrub_freq); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrub-frequency value to dictionary"); + goto out; + } + } + + ret = dict_get_strn(rsp_dict, "features.scrub-throttle", + SLEN("features.scrub-throttle"), &scrub_impact); + if (!ret) { + ret = dict_set_dynstr_with_alloc(aggr, "features.scrub-throttle", + scrub_impact); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrub-throttle value to dictionary"); + goto out; + } + } + + ret = dict_get_strn(rsp_dict, "features.scrub", SLEN("features.scrub"), + &scrub_state); + if (!ret) { + ret = dict_set_dynstr_with_alloc(aggr, "features.scrub", scrub_state); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrub state value to dictionary"); + goto out; + } + } + + ret = 0; +out: + return ret; +} + +int +glusterd_bitrot_volume_node_rsp(dict_t *aggr, dict_t *rsp_dict) +{ + int ret = -1; + uint64_t value = 0; + char key[64] = ""; + int keylen; + char buf[1024] = ""; + int32_t i = 0; + int32_t j = 0; + char *last_scrub_time = NULL; + char *scrub_time = NULL; + char *volname = NULL; + char *scrub_freq = NULL; + char *scrub_state = NULL; + char *scrub_impact = NULL; + char *bad_gfid_str = NULL; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + glusterd_volinfo_t *volinfo = NULL; + int8_t scrub_running = 0; + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GF_ASSERT(priv); + + ret = dict_set_strn(aggr, "bitrot_log_file", SLEN("bitrot_log_file"), + priv->bitd_svc.proc.logfile); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set bitrot log file location"); + goto out; + } + + ret = dict_set_strn(aggr, "scrub_log_file", SLEN("scrub_log_file"), + priv->scrub_svc.proc.logfile); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set scrubber log file location"); + goto out; + } + + ret = dict_get_strn(aggr, "volname", SLEN("volname"), &volname); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to get volume name"); + goto out; + } + + ret = glusterd_volinfo_find(volname, &volinfo); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_VOL_NOT_FOUND, + "Unable to find volinfo for volume: %s", volname); + goto out; + } + + ret = dict_get_int32n(aggr, "count", SLEN("count"), &i); + i++; + + ret = dict_set_int32n(aggr, "count", SLEN("count"), i); + if (ret) + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set count"); + + snprintf(buf, sizeof(buf), "%s", uuid_utoa(MY_UUID)); + + snprintf(key, sizeof(key), "node-uuid-%d", i); + ret = dict_set_dynstr_with_alloc(aggr, key, buf); + if (ret) + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "failed to set node-uuid"); + + ret = dict_get_strn(volinfo->dict, "features.scrub-freq", + SLEN("features.scrub-freq"), &scrub_freq); + if (!ret) { + ret = dict_set_strn(aggr, "features.scrub-freq", + SLEN("features.scrub-freq"), scrub_freq); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrub-frequency value to dictionary"); + } + } else { + /* By Default scrub-frequency is bi-weekly. So when user + * enable bitrot then scrub-frequency value will not be + * present in volinfo->dict. Setting by-default value of + * scrub-frequency explicitly for presenting it to scrub + * status. + */ + ret = dict_set_dynstr_with_alloc(aggr, "features.scrub-freq", + "biweekly"); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrub-frequency value to dictionary"); + } + } + + ret = dict_get_strn(volinfo->dict, "features.scrub-throttle", + SLEN("features.scrub-throttle"), &scrub_impact); + if (!ret) { + ret = dict_set_strn(aggr, "features.scrub-throttle", + SLEN("features.scrub-throttle"), scrub_impact); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrub-throttle value to dictionary"); + } + } else { + /* By Default scrub-throttle is lazy. So when user + * enable bitrot then scrub-throttle value will not be + * present in volinfo->dict. Setting by-default value of + * scrub-throttle explicitly for presenting it to + * scrub status. + */ + ret = dict_set_dynstr_with_alloc(aggr, "features.scrub-throttle", + "lazy"); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrub-throttle value to dictionary"); + } + } + + ret = dict_get_strn(volinfo->dict, "features.scrub", SLEN("features.scrub"), + &scrub_state); + if (!ret) { + ret = dict_set_strn(aggr, "features.scrub", SLEN("features.scrub"), + scrub_state); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrub state value to dictionary"); + } + } + + ret = dict_get_int8(rsp_dict, "scrub-running", &scrub_running); + if (!ret) { + snprintf(key, sizeof(key), "scrub-running-%d", i); + ret = dict_set_uint64(aggr, key, scrub_running); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrub-running value"); + } + } + + ret = dict_get_uint64(rsp_dict, "scrubbed-files", &value); + if (!ret) { + snprintf(key, sizeof(key), "scrubbed-files-%d", i); + ret = dict_set_uint64(aggr, key, value); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrubbed-file value"); + } + } + + ret = dict_get_uint64(rsp_dict, "unsigned-files", &value); + if (!ret) { + snprintf(key, sizeof(key), "unsigned-files-%d", i); + ret = dict_set_uint64(aggr, key, value); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "unsigned-file value"); + } + } + + ret = dict_get_strn(rsp_dict, "last-scrub-time", SLEN("last-scrub-time"), + &last_scrub_time); + if (!ret) { + keylen = snprintf(key, sizeof(key), "last-scrub-time-%d", i); + + scrub_time = gf_strdup(last_scrub_time); + ret = dict_set_dynstrn(aggr, key, keylen, scrub_time); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "last scrub time value"); + } + } + + ret = dict_get_uint64(rsp_dict, "scrub-duration", &value); + if (!ret) { + snprintf(key, sizeof(key), "scrub-duration-%d", i); + ret = dict_set_uint64(aggr, key, value); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set " + "scrubbed-duration value"); + } + } + + ret = dict_get_uint64(rsp_dict, "total-count", &value); + if (!ret) { + snprintf(key, sizeof(key), "error-count-%d", i); + ret = dict_set_uint64(aggr, key, value); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to set error " + "count value"); + } + + /* Storing all the bad files in the dictionary */ + for (j = 0; j < value; j++) { + keylen = snprintf(key, sizeof(key), "quarantine-%d", j); + ret = dict_get_strn(rsp_dict, key, keylen, &bad_gfid_str); + if (!ret) { + snprintf(key, sizeof(key), "quarantine-%d-%d", j, i); + ret = dict_set_dynstr_with_alloc(aggr, key, bad_gfid_str); + if (ret) { + gf_msg_debug(this->name, 0, + "Failed to" + "bad file gfid "); + } + } + } + } + + ret = 0; +out: + return ret; +} + +int +glusterd_volume_rebalance_use_rsp_dict(dict_t *aggr, dict_t *rsp_dict) +{ + char key[64] = ""; + int keylen; + char *node_uuid = NULL; + char *node_uuid_str = NULL; + char *volname = NULL; + dict_t *ctx_dict = NULL; + double elapsed_time = 0; + glusterd_conf_t *conf = NULL; + glusterd_peerinfo_t *peerinfo = NULL; + glusterd_volinfo_t *volinfo = NULL; + int ret = 0; + int32_t index = 0; + int32_t count = 0; + int32_t current_index = 1; + int32_t value32 = 0; + uint64_t value = 0; + char *peer_uuid_str = NULL; + xlator_t *this = NULL; + + GF_ASSERT(rsp_dict); + this = THIS; + GF_ASSERT(this); + conf = this->private; + + if (conf->op_version < GD_OP_VERSION_6_0) + current_index = 2; + if (aggr) { + ctx_dict = aggr; + + } else { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_OPCTX_GET_FAIL, + "Operation Context is not present"); + goto out; + } + + ret = dict_get_strn(ctx_dict, "volname", SLEN("volname"), &volname); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to get volume name"); + goto out; + } + + ret = glusterd_volinfo_find(volname, &volinfo); + + if (ret) + goto out; + + ret = dict_get_int32n(rsp_dict, "count", SLEN("count"), &index); + if (ret) + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "failed to get index from rsp dict"); + + keylen = snprintf(key, sizeof(key), "node-uuid-%d", index); + ret = dict_get_strn(rsp_dict, key, keylen, &node_uuid); + if (!ret) { + node_uuid_str = gf_strdup(node_uuid); + + /* Finding the index of the node-uuid in the peer-list */ + RCU_READ_LOCK; + cds_list_for_each_entry_rcu(peerinfo, &conf->peers, uuid_list) + { + peer_uuid_str = gd_peer_uuid_str(peerinfo); + if (strcmp(peer_uuid_str, node_uuid_str) == 0) + break; + + current_index++; + } + RCU_READ_UNLOCK; + + /* Setting the largest index value as the total count. */ + ret = dict_get_int32n(ctx_dict, "count", SLEN("count"), &count); + if (count < current_index) { + ret = dict_set_int32n(ctx_dict, "count", SLEN("count"), + current_index); + if (ret) + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set count"); + } + + /* Setting the same index for the node, as is in the peerlist.*/ + keylen = snprintf(key, sizeof(key), "node-uuid-%d", current_index); + ret = dict_set_dynstrn(ctx_dict, key, keylen, node_uuid_str); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set node-uuid"); + } + } + + snprintf(key, sizeof(key), "files-%d", index); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "files-%d", current_index); + ret = dict_set_uint64(ctx_dict, key, value); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set the file count"); + } + } + + snprintf(key, sizeof(key), "size-%d", index); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "size-%d", current_index); + ret = dict_set_uint64(ctx_dict, key, value); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set the size of migration"); + } + } + + snprintf(key, sizeof(key), "lookups-%d", index); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "lookups-%d", current_index); + ret = dict_set_uint64(ctx_dict, key, value); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set looked up file count"); + } + } + + keylen = snprintf(key, sizeof(key), "status-%d", index); + ret = dict_get_int32n(rsp_dict, key, keylen, &value32); + if (!ret) { + keylen = snprintf(key, sizeof(key), "status-%d", current_index); + ret = dict_set_int32n(ctx_dict, key, keylen, value32); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set status"); + } + } + + snprintf(key, sizeof(key), "failures-%d", index); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "failures-%d", current_index); + ret = dict_set_uint64(ctx_dict, key, value); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set failure count"); + } + } + + snprintf(key, sizeof(key), "skipped-%d", index); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "skipped-%d", current_index); + ret = dict_set_uint64(ctx_dict, key, value); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set skipped count"); + } + } + snprintf(key, sizeof(key), "run-time-%d", index); + ret = dict_get_double(rsp_dict, key, &elapsed_time); + if (!ret) { + snprintf(key, sizeof(key), "run-time-%d", current_index); + ret = dict_set_double(ctx_dict, key, elapsed_time); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set run-time"); + } + } + + snprintf(key, sizeof(key), "time-left-%d", index); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "time-left-%d", current_index); + ret = dict_set_uint64(ctx_dict, key, value); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set time-left"); + } + } + snprintf(key, sizeof(key), "demoted-%d", index); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "demoted-%d", current_index); + ret = dict_set_uint64(ctx_dict, key, value); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set demoted count"); + } + } + snprintf(key, sizeof(key), "promoted-%d", index); + ret = dict_get_uint64(rsp_dict, key, &value); + if (!ret) { + snprintf(key, sizeof(key), "promoted-%d", current_index); + ret = dict_set_uint64(ctx_dict, key, value); + if (ret) { + gf_msg_debug(THIS->name, 0, "failed to set promoted count"); + } + } + + ret = 0; + +out: + return ret; +} + +int +glusterd_sys_exec_output_rsp_dict(dict_t *dst, dict_t *src) +{ + char output_name[64] = ""; + char *output = NULL; + int ret = 0; + int i = 0; + int keylen; + int src_output_count = 0; + int dst_output_count = 0; + + if (!dst || !src) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_EMPTY, + "Source or Destination " + "dict is empty."); + goto out; + } + + ret = dict_get_int32n(dst, "output_count", SLEN("output_count"), + &dst_output_count); + + ret = dict_get_int32n(src, "output_count", SLEN("output_count"), + &src_output_count); + if (ret) { + gf_msg_debug("glusterd", 0, "No output from source"); + ret = 0; + goto out; + } + + for (i = 1; i <= src_output_count; i++) { + keylen = snprintf(output_name, sizeof(output_name), "output_%d", i); + if (keylen <= 0 || keylen >= sizeof(output_name)) { + ret = -1; + goto out; + } + ret = dict_get_strn(src, output_name, keylen, &output); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to fetch %s", output_name); + goto out; + } + + keylen = snprintf(output_name, sizeof(output_name), "output_%d", + i + dst_output_count); + if (keylen <= 0 || keylen >= sizeof(output_name)) { + ret = -1; + goto out; + } + + ret = dict_set_dynstrn(dst, output_name, keylen, gf_strdup(output)); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Unable to set %s", output_name); + goto out; + } + } + + ret = dict_set_int32n(dst, "output_count", SLEN("output_count"), + dst_output_count + src_output_count); +out: + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +int +glusterd_use_rsp_dict(dict_t *aggr, dict_t *rsp_dict) +{ + int ret = 0; + + GF_ASSERT(aggr); + GF_ASSERT(rsp_dict); + + if (!aggr) + goto out; + dict_copy(rsp_dict, aggr); +out: + return ret; +} + +int +glusterd_volume_heal_use_rsp_dict(dict_t *aggr, dict_t *rsp_dict) +{ + int ret = 0; + dict_t *ctx_dict = NULL; + uuid_t *txn_id = NULL; + glusterd_op_info_t txn_op_info = { + {0}, + }; + glusterd_op_t op = GD_OP_NONE; + + GF_ASSERT(rsp_dict); + + ret = dict_get_bin(aggr, "transaction_id", (void **)&txn_id); + if (ret) + goto out; + gf_msg_debug(THIS->name, 0, "transaction ID = %s", uuid_utoa(*txn_id)); + + ret = glusterd_get_txn_opinfo(txn_id, &txn_op_info); + if (ret) { + gf_msg_callingfn(THIS->name, GF_LOG_ERROR, 0, + GD_MSG_TRANS_OPINFO_GET_FAIL, + "Unable to get transaction opinfo " + "for transaction ID : %s", + uuid_utoa(*txn_id)); + goto out; + } + + op = txn_op_info.op; + GF_ASSERT(GD_OP_HEAL_VOLUME == op); + + if (aggr) { + ctx_dict = aggr; + + } else { + ctx_dict = txn_op_info.op_ctx; + } + + if (!ctx_dict) + goto out; + dict_copy(rsp_dict, ctx_dict); +out: + return ret; +} + +int +_profile_volume_add_brick_rsp(dict_t *this, char *key, data_t *value, + void *data) +{ + char new_key[256] = ""; + int keylen; + glusterd_pr_brick_rsp_conv_t *rsp_ctx = NULL; + data_t *new_value = NULL; + + rsp_ctx = data; + new_value = data_copy(value); + GF_ASSERT(new_value); + keylen = snprintf(new_key, sizeof(new_key), "%d-%s", rsp_ctx->count, key); + dict_setn(rsp_ctx->dict, new_key, keylen, new_value); + return 0; +} + +int +glusterd_volume_quota_copy_to_op_ctx_dict(dict_t *dict, dict_t *rsp_dict) +{ + int ret = -1; + int i = 0; + int count = 0; + int rsp_dict_count = 0; + char *uuid_str = NULL; + char *uuid_str_dup = NULL; + char key[64] = ""; + int keylen; + xlator_t *this = NULL; + int type = GF_QUOTA_OPTION_TYPE_NONE; + + this = THIS; + GF_ASSERT(this); + + ret = dict_get_int32n(dict, "type", SLEN("type"), &type); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get quota opcode"); + goto out; + } + + if ((type != GF_QUOTA_OPTION_TYPE_LIMIT_USAGE) && + (type != GF_QUOTA_OPTION_TYPE_LIMIT_OBJECTS) && + (type != GF_QUOTA_OPTION_TYPE_REMOVE) && + (type != GF_QUOTA_OPTION_TYPE_REMOVE_OBJECTS)) { + dict_copy(rsp_dict, dict); + ret = 0; + goto out; + } + + ret = dict_get_int32n(rsp_dict, "count", SLEN("count"), &rsp_dict_count); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get the count of " + "gfids from the rsp dict"); + goto out; + } + + ret = dict_get_int32n(dict, "count", SLEN("count"), &count); + if (ret) + /* The key "count" is absent in op_ctx when this function is + * called after self-staging on the originator. This must not + * be treated as error. + */ + gf_msg_debug(this->name, 0, + "Failed to get count of gfids" + " from req dict. This could be because count is not yet" + " copied from rsp_dict into op_ctx"); + + for (i = 0; i < rsp_dict_count; i++) { + keylen = snprintf(key, sizeof(key), "gfid%d", i); + ret = dict_get_strn(rsp_dict, key, keylen, &uuid_str); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get gfid " + "from rsp dict"); + goto out; + } + + uuid_str_dup = gf_strdup(uuid_str); + if (!uuid_str_dup) { + ret = -1; + goto out; + } + + keylen = snprintf(key, sizeof(key), "gfid%d", i + count); + ret = dict_set_dynstrn(dict, key, keylen, uuid_str_dup); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set gfid " + "from rsp dict into req dict"); + GF_FREE(uuid_str_dup); + goto out; + } + } + + ret = dict_set_int32n(dict, "count", SLEN("count"), rsp_dict_count + count); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set aggregated " + "count in req dict"); + goto out; + } + +out: + return ret; +} + +int +glusterd_profile_volume_brick_rsp(void *pending_entry, dict_t *rsp_dict, + dict_t *op_ctx, char **op_errstr, + gd_node_type type) +{ + int ret = 0; + glusterd_pr_brick_rsp_conv_t rsp_ctx = {0}; + int32_t count = 0; + char brick[PATH_MAX + 1024] = ""; + char key[64] = ""; + int keylen; + char *full_brick = NULL; + glusterd_brickinfo_t *brickinfo = NULL; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + + GF_ASSERT(rsp_dict); + GF_ASSERT(op_ctx); + GF_ASSERT(op_errstr); + GF_ASSERT(pending_entry); + + this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_ASSERT(priv); + + ret = dict_get_int32n(op_ctx, "count", SLEN("count"), &count); + if (ret) { + count = 1; + } else { + count++; + } + if (type == GD_NODE_BRICK) { + brickinfo = pending_entry; + snprintf(brick, sizeof(brick), "%s:%s", brickinfo->hostname, + brickinfo->path); + } else if (type == GD_NODE_NFS) { + snprintf(brick, sizeof(brick), "%s", uuid_utoa(MY_UUID)); + } + full_brick = gf_strdup(brick); + GF_ASSERT(full_brick); + keylen = snprintf(key, sizeof(key), "%d-brick", count); + ret = dict_set_dynstrn(op_ctx, key, keylen, full_brick); + + rsp_ctx.count = count; + rsp_ctx.dict = op_ctx; + dict_foreach(rsp_dict, _profile_volume_add_brick_rsp, &rsp_ctx); + ret = dict_set_int32n(op_ctx, "count", SLEN("count"), count); + return ret; +} + +// input-key: <replica-id>:<child-id>-* +// output-key: <brick-id>-* +int +_heal_volume_add_shd_rsp(dict_t *this, char *key, data_t *value, void *data) +{ + char new_key[256] = ""; + char int_str[16] = ""; + data_t *new_value = NULL; + char *rxl_end = NULL; + int rxl_end_len; + char *rxl_child_end = NULL; + glusterd_volinfo_t *volinfo = NULL; + int rxl_id = 0; + int rxl_child_id = 0; + int brick_id = 0; + int int_len = 0; + int ret = 0; + glusterd_heal_rsp_conv_t *rsp_ctx = NULL; + glusterd_brickinfo_t *brickinfo = NULL; + + rsp_ctx = data; + rxl_end = strchr(key, '-'); + if (!rxl_end) + goto out; + + rxl_child_end = strchr(rxl_end + 1, '-'); + if (!rxl_child_end) + goto out; + + rxl_end_len = strlen(rxl_end); + int_len = strlen(key) - rxl_end_len; + (void)memcpy(int_str, key, int_len); + int_str[int_len] = '\0'; + + ret = gf_string2int(int_str, &rxl_id); + if (ret) + goto out; + + int_len = rxl_end_len - strlen(rxl_child_end) - 1; + (void)memcpy(int_str, rxl_end + 1, int_len); + int_str[int_len] = '\0'; + + ret = gf_string2int(int_str, &rxl_child_id); + if (ret) + goto out; + + volinfo = rsp_ctx->volinfo; + brick_id = rxl_id * volinfo->replica_count + rxl_child_id; + + if (!strcmp(rxl_child_end, "-status")) { + brickinfo = glusterd_get_brickinfo_by_position(volinfo, brick_id); + if (!brickinfo) + goto out; + if (!glusterd_is_local_brick(rsp_ctx->this, volinfo, brickinfo)) + goto out; + } + new_value = data_copy(value); + int_len = snprintf(new_key, sizeof(new_key), "%d%s", brick_id, + rxl_child_end); + dict_setn(rsp_ctx->dict, new_key, int_len, new_value); + +out: + return 0; +} + +int +_heal_volume_add_shd_rsp_of_statistics(dict_t *this, char *key, data_t *value, + void *data) +{ + char new_key[256] = ""; + char int_str[16] = ""; + char key_begin_string[128] = ""; + data_t *new_value = NULL; + char *rxl_end = NULL; + int rxl_end_len; + char *rxl_child_end = NULL; + glusterd_volinfo_t *volinfo = NULL; + char *key_begin_str = NULL; + int key_begin_strlen; + int rxl_id = 0; + int rxl_child_id = 0; + int brick_id = 0; + int int_len = 0; + int ret = 0; + glusterd_heal_rsp_conv_t *rsp_ctx = NULL; + glusterd_brickinfo_t *brickinfo = NULL; + + rsp_ctx = data; + key_begin_str = strchr(key, '-'); + if (!key_begin_str) + goto out; + + rxl_end = strchr(key_begin_str + 1, '-'); + if (!rxl_end) + goto out; + + rxl_child_end = strchr(rxl_end + 1, '-'); + if (!rxl_child_end) + goto out; + + key_begin_strlen = strlen(key_begin_str); + int_len = strlen(key) - key_begin_strlen; + + (void)memcpy(key_begin_string, key, int_len); + key_begin_string[int_len] = '\0'; + + rxl_end_len = strlen(rxl_end); + int_len = key_begin_strlen - rxl_end_len - 1; + (void)memcpy(int_str, key_begin_str + 1, int_len); + int_str[int_len] = '\0'; + ret = gf_string2int(int_str, &rxl_id); + if (ret) + goto out; + + int_len = rxl_end_len - strlen(rxl_child_end) - 1; + (void)memcpy(int_str, rxl_end + 1, int_len); + int_str[int_len] = '\0'; + ret = gf_string2int(int_str, &rxl_child_id); + if (ret) + goto out; + + volinfo = rsp_ctx->volinfo; + brick_id = rxl_id * volinfo->replica_count + rxl_child_id; + + brickinfo = glusterd_get_brickinfo_by_position(volinfo, brick_id); + if (!brickinfo) + goto out; + if (!glusterd_is_local_brick(rsp_ctx->this, volinfo, brickinfo)) + goto out; + + new_value = data_copy(value); + int_len = snprintf(new_key, sizeof(new_key), "%s-%d%s", key_begin_string, + brick_id, rxl_child_end); + dict_setn(rsp_ctx->dict, new_key, int_len, new_value); + +out: + return 0; +} + +int +glusterd_heal_volume_brick_rsp(dict_t *req_dict, dict_t *rsp_dict, + dict_t *op_ctx, char **op_errstr) +{ + int ret = 0; + glusterd_heal_rsp_conv_t rsp_ctx = {0}; + char *volname = NULL; + glusterd_volinfo_t *volinfo = NULL; + int heal_op = -1; + + GF_ASSERT(rsp_dict); + GF_ASSERT(op_ctx); + GF_ASSERT(op_errstr); + + ret = dict_get_strn(req_dict, "volname", SLEN("volname"), &volname); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to get volume name"); + goto out; + } + + ret = dict_get_int32n(req_dict, "heal-op", SLEN("heal-op"), &heal_op); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to get heal_op"); + goto out; + } + + ret = glusterd_volinfo_find(volname, &volinfo); + + if (ret) + goto out; + + rsp_ctx.dict = op_ctx; + rsp_ctx.volinfo = volinfo; + rsp_ctx.this = THIS; + if (heal_op == GF_SHD_OP_STATISTICS) + dict_foreach(rsp_dict, _heal_volume_add_shd_rsp_of_statistics, + &rsp_ctx); + else + dict_foreach(rsp_dict, _heal_volume_add_shd_rsp, &rsp_ctx); + +out: + return ret; +} + +int +_status_volume_add_brick_rsp(dict_t *this, char *key, data_t *value, void *data) +{ + char new_key[256] = ""; + int keylen; + data_t *new_value = 0; + glusterd_pr_brick_rsp_conv_t *rsp_ctx = NULL; + + rsp_ctx = data; + new_value = data_copy(value); + keylen = snprintf(new_key, sizeof(new_key), "brick%d.%s", rsp_ctx->count, + key); + dict_setn(rsp_ctx->dict, new_key, keylen, new_value); + + return 0; +} + +int +glusterd_status_volume_brick_rsp(dict_t *rsp_dict, dict_t *op_ctx, + char **op_errstr) +{ + int ret = 0; + glusterd_pr_brick_rsp_conv_t rsp_ctx = {0}; + int32_t count = 0; + int index = 0; + + GF_ASSERT(rsp_dict); + GF_ASSERT(op_ctx); + GF_ASSERT(op_errstr); + + ret = dict_get_int32n(op_ctx, "count", SLEN("count"), &count); + if (ret) { + count = 0; + } else { + count++; + } + ret = dict_get_int32n(rsp_dict, "index", SLEN("index"), &index); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Couldn't get node index"); + goto out; + } + dict_deln(rsp_dict, "index", SLEN("index")); + + rsp_ctx.count = index; + rsp_ctx.dict = op_ctx; + dict_foreach(rsp_dict, _status_volume_add_brick_rsp, &rsp_ctx); + ret = dict_set_int32n(op_ctx, "count", SLEN("count"), count); + +out: + return ret; +} + +int +glusterd_status_volume_client_list(dict_t *rsp_dict, dict_t *op_ctx, + char **op_errstr) +{ + int ret = 0; + char *process = 0; + int32_t count = 0; + int32_t fuse_count = 0; + int32_t gfapi_count = 0; + int32_t rebalance_count = 0; + int32_t glustershd_count = 0; + int32_t quotad_count = 0; + int32_t snapd_count = 0; + int32_t client_count = 0; + int i = 0; + char key[64] = ""; + + GF_ASSERT(rsp_dict); + GF_ASSERT(op_ctx); + GF_ASSERT(op_errstr); + + ret = dict_get_int32n(rsp_dict, "clientcount", SLEN("clientcount"), + &client_count); + if (ret) { + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "Couldn't get node index"); + } + ret = dict_set_int32n(op_ctx, "client-count", SLEN("client-count"), + client_count); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Couldn't get node index"); + goto out; + } + for (i = 0; i < client_count; i++) { + count = 0; + ret = snprintf(key, sizeof(key), "client%d.name", i); + ret = dict_get_strn(rsp_dict, key, ret, &process); + if (ret) { + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "Couldn't get client name"); + goto out; + } + ret = dict_add_dynstr_with_alloc(op_ctx, key, process); + if (ret) { + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_SET_FAILED, + "Couldn't set client name"); + } + if (!strncmp(process, "fuse", 4)) { + ret = dict_get_int32n(op_ctx, "fuse-count", SLEN("fuse-count"), + &count); + if (ret) { + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "Couldn't get fuse-count"); + } + fuse_count++; + continue; + } else if (!strncmp(process, "gfapi", 5)) { + ret = dict_get_int32n(op_ctx, "gfapi-count", SLEN("gfapi-count"), + &count); + if (ret) { + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "Couldn't get gfapi-count"); + } + gfapi_count++; + continue; + + } else if (!strcmp(process, "rebalance")) { + ret = dict_get_int32n(op_ctx, "rebalance-count", + SLEN("rebalance-count"), &count); + if (ret) { + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "Couldn't get rebalance-count"); + } + rebalance_count++; + continue; + } else if (!strcmp(process, "glustershd")) { + ret = dict_get_int32n(op_ctx, "glustershd-count", + SLEN("glustershd-count"), &count); + if (ret) { + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "Couldn't get glustershd-count"); + } + glustershd_count++; + continue; + } else if (!strcmp(process, "quotad")) { + ret = dict_get_int32n(op_ctx, "quotad-count", SLEN("quotad-count"), + &count); + if (ret) { + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "Couldn't get quotad-count"); + } + quotad_count++; + continue; + } else if (!strcmp(process, "snapd")) { + ret = dict_get_int32n(op_ctx, "snapd-count", SLEN("snapd-count"), + &count); + if (ret) { + gf_msg(THIS->name, GF_LOG_INFO, 0, GD_MSG_DICT_GET_FAILED, + "Couldn't get snapd-count"); + } + snapd_count++; + } + } + + if (fuse_count) { + ret = dict_set_int32n(op_ctx, "fuse-count", SLEN("fuse-count"), + fuse_count); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Couldn't set fuse-count"); + goto out; + } + } + if (gfapi_count) { + ret = dict_set_int32n(op_ctx, "gfapi-count", SLEN("gfapi-count"), + gfapi_count); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Couldn't set gfapi-count"); + goto out; + } + } + if (rebalance_count) { + ret = dict_set_int32n(op_ctx, "rebalance-count", + SLEN("rebalance-count"), rebalance_count); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Couldn't set rebalance-count"); + goto out; + } + } + if (glustershd_count) { + ret = dict_set_int32n(op_ctx, "glustershd-count", + SLEN("glustershd-count"), glustershd_count); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Couldn't set glustershd-count"); + goto out; + } + } + if (quotad_count) { + ret = dict_set_int32n(op_ctx, "quotad-count", SLEN("quotad-count"), + quotad_count); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Couldn't set quotad-count"); + goto out; + } + } + if (snapd_count) { + ret = dict_set_int32n(op_ctx, "snapd-count", SLEN("snapd-count"), + snapd_count); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Couldn't set snapd-count"); + goto out; + } + } + +out: + return ret; +} + +int +glusterd_rebalance_rsp(dict_t *op_ctx, glusterd_rebalance_t *index, int32_t i) +{ + int ret = 0; + char key[64] = ""; + int keylen; + + snprintf(key, sizeof(key), "files-%d", i); + ret = dict_set_uint64(op_ctx, key, index->rebalance_files); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "failed to set file count"); + + snprintf(key, sizeof(key), "size-%d", i); + ret = dict_set_uint64(op_ctx, key, index->rebalance_data); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "failed to set size of xfer"); + + snprintf(key, sizeof(key), "lookups-%d", i); + ret = dict_set_uint64(op_ctx, key, index->lookedup_files); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "failed to set lookedup file count"); + + keylen = snprintf(key, sizeof(key), "status-%d", i); + ret = dict_set_int32n(op_ctx, key, keylen, index->defrag_status); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "failed to set status"); + + snprintf(key, sizeof(key), "failures-%d", i); + ret = dict_set_uint64(op_ctx, key, index->rebalance_failures); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "failed to set failure count"); + + snprintf(key, sizeof(key), "skipped-%d", i); + ret = dict_set_uint64(op_ctx, key, index->skipped_files); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "failed to set skipped count"); + + snprintf(key, sizeof(key), "run-time-%d", i); + ret = dict_set_double(op_ctx, key, index->rebalance_time); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "failed to set run-time"); + + return ret; +} + +int +glusterd_defrag_volume_node_rsp(dict_t *req_dict, dict_t *rsp_dict, + dict_t *op_ctx) +{ + int ret = 0; + char *volname = NULL; + glusterd_volinfo_t *volinfo = NULL; + char key[64] = ""; + int keylen; + int32_t i = 0; + char buf[64] = ""; + char *node_str = NULL; + int32_t cmd = 0; + + GF_ASSERT(req_dict); + + ret = dict_get_strn(req_dict, "volname", SLEN("volname"), &volname); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to get volume name"); + goto out; + } + + ret = glusterd_volinfo_find(volname, &volinfo); + + ret = dict_get_int32n(req_dict, "rebalance-command", + SLEN("rebalance-command"), &cmd); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, errno, GD_MSG_DICT_GET_FAILED, + "Unable to get the cmd"); + goto out; + } + + if (rsp_dict) { + ret = glusterd_defrag_volume_status_update(volinfo, rsp_dict, cmd); + } + + if (!op_ctx) { + dict_copy(rsp_dict, op_ctx); + goto out; + } + + ret = dict_get_int32n(op_ctx, "count", SLEN("count"), &i); + i++; + + ret = dict_set_int32n(op_ctx, "count", SLEN("count"), i); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set count"); + + snprintf(buf, sizeof(buf), "%s", uuid_utoa(MY_UUID)); + node_str = gf_strdup(buf); + + keylen = snprintf(key, sizeof(key), "node-uuid-%d", i); + ret = dict_set_dynstrn(op_ctx, key, keylen, node_str); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "failed to set node-uuid"); + + glusterd_rebalance_rsp(op_ctx, &volinfo->rebal, i); + + snprintf(key, sizeof(key), "time-left-%d", i); + ret = dict_set_uint64(op_ctx, key, volinfo->rebal.time_left); + if (ret) + gf_msg(THIS->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "failed to set time left"); + +out: + return ret; +} +int32_t +glusterd_handle_node_rsp(dict_t *req_dict, void *pending_entry, + glusterd_op_t op, dict_t *rsp_dict, dict_t *op_ctx, + char **op_errstr, gd_node_type type) +{ + int ret = 0; + int32_t cmd = GF_OP_CMD_NONE; + + GF_ASSERT(op_errstr); + + switch (op) { + case GD_OP_PROFILE_VOLUME: + ret = glusterd_profile_volume_brick_rsp(pending_entry, rsp_dict, + op_ctx, op_errstr, type); + break; + case GD_OP_STATUS_VOLUME: + ret = dict_get_int32n(req_dict, "cmd", SLEN("cmd"), &cmd); + if (!ret && (cmd & GF_CLI_STATUS_CLIENT_LIST)) { + ret = glusterd_status_volume_client_list(rsp_dict, op_ctx, + op_errstr); + } else + ret = glusterd_status_volume_brick_rsp(rsp_dict, op_ctx, + op_errstr); + break; + case GD_OP_DEFRAG_BRICK_VOLUME: + glusterd_defrag_volume_node_rsp(req_dict, rsp_dict, op_ctx); + break; + + case GD_OP_HEAL_VOLUME: + ret = glusterd_heal_volume_brick_rsp(req_dict, rsp_dict, op_ctx, + op_errstr); + break; + case GD_OP_SCRUB_STATUS: + ret = glusterd_bitrot_volume_node_rsp(op_ctx, rsp_dict); + + break; + default: + break; + } + + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +int32_t +glusterd_set_originator_uuid(dict_t *dict) +{ + int ret = -1; + uuid_t *originator_uuid = NULL; + + GF_ASSERT(dict); + + originator_uuid = GF_MALLOC(sizeof(uuid_t), gf_common_mt_uuid_t); + if (!originator_uuid) { + ret = -1; + goto out; + } + + gf_uuid_copy(*originator_uuid, MY_UUID); + ret = dict_set_bin(dict, "originator_uuid", originator_uuid, + sizeof(uuid_t)); + if (ret) { + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set originator_uuid."); + goto out; + } + +out: + if (ret && originator_uuid) + GF_FREE(originator_uuid); + + return ret; +} + +/* Should be used only when an operation is in progress, as that is the only + * time a lock_owner is set + */ +gf_boolean_t +is_origin_glusterd(dict_t *dict) +{ + gf_boolean_t ret = _gf_false; + uuid_t lock_owner = { + 0, + }; + uuid_t *originator_uuid = NULL; + + GF_ASSERT(dict); + + ret = dict_get_bin(dict, "originator_uuid", (void **)&originator_uuid); + if (ret) { + /* If not originator_uuid has been set, then the command + * has been originated from a glusterd running on older version + * Hence fetching the lock owner */ + ret = glusterd_get_lock_owner(&lock_owner); + if (ret) { + ret = _gf_false; + goto out; + } + ret = !gf_uuid_compare(MY_UUID, lock_owner); + } else + ret = !gf_uuid_compare(MY_UUID, *originator_uuid); + +out: + return ret; +} + +int +glusterd_generate_and_set_task_id(dict_t *dict, char *key, const int keylen) +{ + int ret = -1; + uuid_t task_id = { + 0, + }; + char *uuid_str = NULL; + xlator_t *this = NULL; + + GF_ASSERT(dict); + + this = THIS; + GF_ASSERT(this); + + gf_uuid_generate(task_id); + uuid_str = gf_strdup(uuid_utoa(task_id)); + if (!uuid_str) { + ret = -1; + goto out; + } + + ret = dict_set_dynstrn(dict, key, keylen, uuid_str); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set %s in dict", key); + goto out; + } + gf_msg(this->name, GF_LOG_INFO, 0, GD_MSG_TASK_ID_INFO, + "Generated task-id %s for key %s", uuid_str, key); + +out: + if (ret) + GF_FREE(uuid_str); + return ret; +} + +int +glusterd_copy_uuid_to_dict(uuid_t uuid, dict_t *dict, char *key, + const int keylen) +{ + int ret = -1; + char tmp_str[40] = ""; + char *task_id_str = NULL; + + GF_ASSERT(dict); + GF_ASSERT(key); + + gf_uuid_unparse(uuid, tmp_str); + task_id_str = gf_strdup(tmp_str); + if (!task_id_str) + return -1; + + ret = dict_set_dynstrn(dict, key, keylen, task_id_str); + if (ret) { + GF_FREE(task_id_str); + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Error setting uuid in dict with key %s", key); + } + + return 0; +} + +static int +_update_volume_op_versions(dict_t *this, char *key, data_t *value, void *data) +{ + int op_version = 0; + glusterd_volinfo_t *ctx = NULL; + gf_boolean_t enabled = _gf_true; + int ret = -1; + struct volopt_map_entry *vmep = NULL; + + GF_ASSERT(data); + ctx = data; + + vmep = gd_get_vmep(key); + op_version = glusterd_get_op_version_from_vmep(vmep); + + if (gd_is_xlator_option(vmep) || gd_is_boolean_option(vmep)) { + ret = gf_string2boolean(value->data, &enabled); + if (ret) + return 0; + + if (!enabled) + return 0; + } + + if (op_version > ctx->op_version) + ctx->op_version = op_version; + + if (gd_is_client_option(vmep) && (op_version > ctx->client_op_version)) + ctx->client_op_version = op_version; + + return 0; +} + +void +gd_update_volume_op_versions(glusterd_volinfo_t *volinfo) +{ + glusterd_conf_t *conf = NULL; + gf_boolean_t ob_enabled = _gf_false; + + GF_ASSERT(volinfo); + + conf = THIS->private; + GF_ASSERT(conf); + + /* Reset op-versions to minimum */ + volinfo->op_version = 1; + volinfo->client_op_version = 1; + + dict_foreach(volinfo->dict, _update_volume_op_versions, volinfo); + + /* Special case for open-behind + * If cluster op-version >= 2 and open-behind hasn't been explicitly + * disabled, volume op-versions must be updated to account for it + */ + + /* TODO: Remove once we have a general way to update automatically + * enabled features + */ + if (conf->op_version >= 2) { + ob_enabled = dict_get_str_boolean(volinfo->dict, + "performance.open-behind", _gf_true); + if (ob_enabled) { + if (volinfo->op_version < 2) + volinfo->op_version = 2; + if (volinfo->client_op_version < 2) + volinfo->client_op_version = 2; + } + } + + if (volinfo->type == GF_CLUSTER_TYPE_DISPERSE) { + if (volinfo->op_version < GD_OP_VERSION_3_6_0) + volinfo->op_version = GD_OP_VERSION_3_6_0; + if (volinfo->client_op_version < GD_OP_VERSION_3_6_0) + volinfo->client_op_version = GD_OP_VERSION_3_6_0; + } + + return; +} + +int +op_version_check(xlator_t *this, int min_op_version, char *msg, int msglen) +{ + int ret = 0; + glusterd_conf_t *priv = NULL; + + GF_ASSERT(this); + GF_ASSERT(msg); + + priv = this->private; + if (priv->op_version < min_op_version) { + snprintf(msg, msglen, + "One or more nodes do not support " + "the required op-version. Cluster op-version must " + "at least be %d.", + min_op_version); + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_UNSUPPORTED_VERSION, "%s", + msg); + ret = -1; + } + return ret; +} + +/* A task is committed/completed once the task-id for it is cleared */ +gf_boolean_t +gd_is_remove_brick_committed(glusterd_volinfo_t *volinfo) +{ + GF_ASSERT(volinfo); + + if ((GD_OP_REMOVE_BRICK == volinfo->rebal.op) && + !gf_uuid_is_null(volinfo->rebal.rebalance_id)) + return _gf_false; + + return _gf_true; +} + +gf_boolean_t +glusterd_is_status_tasks_op(glusterd_op_t op, dict_t *dict) +{ + int ret = -1; + uint32_t cmd = GF_CLI_STATUS_NONE; + gf_boolean_t is_status_tasks = _gf_false; + + if (op != GD_OP_STATUS_VOLUME) + goto out; + + ret = dict_get_uint32(dict, "cmd", &cmd); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get opcode"); + goto out; + } + + if (cmd & GF_CLI_STATUS_TASKS) + is_status_tasks = _gf_true; + +out: + return is_status_tasks; +} + +/* Tells if rebalance needs to be started for the given volume on the peer + * + * Rebalance should be started on a peer only if an involved brick is present on + * the peer. + * + * For a normal rebalance, if any one brick of the given volume is present on + * the peer, the rebalance process should be started. + * + * For a rebalance as part of a remove-brick operation, the rebalance process + * should be started only if one of the bricks being removed is present on the + * peer + */ +gf_boolean_t +gd_should_i_start_rebalance(glusterd_volinfo_t *volinfo) +{ + gf_boolean_t retval = _gf_false; + int ret = -1; + glusterd_brickinfo_t *brick = NULL; + int count = 0; + int i = 0; + char key[64] = ""; + int keylen; + char *brickname = NULL; + + switch (volinfo->rebal.op) { + case GD_OP_REBALANCE: + cds_list_for_each_entry(brick, &volinfo->bricks, brick_list) + { + if (gf_uuid_compare(MY_UUID, brick->uuid) == 0) { + retval = _gf_true; + break; + } + } + break; + case GD_OP_REMOVE_BRICK: + ret = dict_get_int32n(volinfo->rebal.dict, "count", SLEN("count"), + &count); + if (ret) { + goto out; + } + for (i = 1; i <= count; i++) { + keylen = snprintf(key, sizeof(key), "brick%d", i); + ret = dict_get_strn(volinfo->rebal.dict, key, keylen, + &brickname); + if (ret) + goto out; + ret = glusterd_volume_brickinfo_get_by_brick(brickname, volinfo, + &brick, _gf_false); + if (ret) + goto out; + if (gf_uuid_compare(MY_UUID, brick->uuid) == 0) { + retval = _gf_true; + break; + } + } + break; + default: + break; + } + +out: + return retval; +} + +int +glusterd_is_volume_quota_enabled(glusterd_volinfo_t *volinfo) +{ + return (glusterd_volinfo_get_boolean(volinfo, VKEY_FEATURES_QUOTA)); +} + +int +glusterd_is_volume_inode_quota_enabled(glusterd_volinfo_t *volinfo) +{ + return (glusterd_volinfo_get_boolean(volinfo, VKEY_FEATURES_INODE_QUOTA)); +} + +int +glusterd_is_bitrot_enabled(glusterd_volinfo_t *volinfo) +{ + return glusterd_volinfo_get_boolean(volinfo, VKEY_FEATURES_BITROT); +} + +int +glusterd_validate_and_set_gfid(dict_t *op_ctx, dict_t *req_dict, + char **op_errstr) +{ + int ret = -1; + int count = 0; + int i = 0; + int op_code = GF_QUOTA_OPTION_TYPE_NONE; + uuid_t uuid1 = {0}; + uuid_t uuid2 = { + 0, + }; + char *path = NULL; + char key[64] = ""; + int keylen; + char *uuid1_str = NULL; + char *uuid1_str_dup = NULL; + char *uuid2_str = NULL; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + + ret = dict_get_int32n(op_ctx, "type", SLEN("type"), &op_code); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get quota opcode"); + goto out; + } + + if ((op_code != GF_QUOTA_OPTION_TYPE_LIMIT_USAGE) && + (op_code != GF_QUOTA_OPTION_TYPE_LIMIT_OBJECTS) && + (op_code != GF_QUOTA_OPTION_TYPE_REMOVE) && + (op_code != GF_QUOTA_OPTION_TYPE_REMOVE_OBJECTS)) { + ret = 0; + goto out; + } + + ret = dict_get_strn(op_ctx, "path", SLEN("path"), &path); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get path"); + goto out; + } + + ret = dict_get_int32n(op_ctx, "count", SLEN("count"), &count); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get count"); + goto out; + } + + /* If count is 0, fail the command with ENOENT. + * + * If count is 1, treat gfid0 as the gfid on which the operation + * is to be performed and resume the command. + * + * if count > 1, get the 0th gfid from the op_ctx and, + * compare it with the remaining 'count -1' gfids. + * If they are found to be the same, set gfid0 in the op_ctx and + * resume the operation, else error out. + */ + + if (count == 0) { + gf_asprintf(op_errstr, + "Failed to get trusted.gfid attribute " + "on path %s. Reason : %s", + path, strerror(ENOENT)); + ret = -ENOENT; + goto out; + } + + keylen = snprintf(key, sizeof(key), "gfid%d", 0); + + ret = dict_get_strn(op_ctx, key, keylen, &uuid1_str); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get key '%s'", key); + goto out; + } + + gf_uuid_parse(uuid1_str, uuid1); + + for (i = 1; i < count; i++) { + keylen = snprintf(key, sizeof(key), "gfid%d", i); + + ret = dict_get_strn(op_ctx, key, keylen, &uuid2_str); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get key " + "'%s'", + key); + goto out; + } + + gf_uuid_parse(uuid2_str, uuid2); + + if (gf_uuid_compare(uuid1, uuid2)) { + gf_asprintf(op_errstr, + "gfid mismatch between %s and " + "%s for path %s", + uuid1_str, uuid2_str, path); + ret = -1; + goto out; + } + } + + if (i == count) { + uuid1_str_dup = gf_strdup(uuid1_str); + if (!uuid1_str_dup) { + ret = -1; + goto out; + } + + ret = dict_set_dynstrn(req_dict, "gfid", SLEN("gfid"), uuid1_str_dup); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set gfid"); + GF_FREE(uuid1_str_dup); + goto out; + } + } else { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_ITER_FAIL, + "Failed to iterate through %d" + " entries in the req dict", + count); + ret = -1; + goto out; + } + + ret = 0; +out: + return ret; +} + +void +glusterd_clean_up_quota_store(glusterd_volinfo_t *volinfo) +{ + char voldir[PATH_MAX] = ""; + char quota_confpath[PATH_MAX] = ""; + char cksum_path[PATH_MAX] = ""; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + int32_t len = 0; + + this = THIS; + GF_ASSERT(this); + conf = this->private; + GF_ASSERT(conf); + + GLUSTERD_GET_VOLUME_DIR(voldir, volinfo, conf); + + len = snprintf(quota_confpath, sizeof(quota_confpath), "%s/%s", voldir, + GLUSTERD_VOLUME_QUOTA_CONFIG); + if ((len < 0) || (len >= sizeof(quota_confpath))) { + quota_confpath[0] = 0; + } + len = snprintf(cksum_path, sizeof(cksum_path), "%s/%s", voldir, + GLUSTERD_VOL_QUOTA_CKSUM_FILE); + if ((len < 0) || (len >= sizeof(cksum_path))) { + cksum_path[0] = 0; + } + + sys_unlink(quota_confpath); + sys_unlink(cksum_path); + + gf_store_handle_destroy(volinfo->quota_conf_shandle); + volinfo->quota_conf_shandle = NULL; + volinfo->quota_conf_version = 0; +} + +int +glusterd_remove_auxiliary_mount(char *volname) +{ + int ret = -1; + char mountdir[PATH_MAX] = ""; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + + GLUSTERD_GET_QUOTA_LIMIT_MOUNT_PATH(mountdir, volname, "/"); + ret = gf_umount_lazy(this->name, mountdir, 1); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_LAZY_UMOUNT_FAIL, + "umount on %s failed, " + "reason : %s", + mountdir, strerror(errno)); + + /* Hide EBADF as it means the mount is already gone */ + if (errno == EBADF) + ret = 0; + } + + return ret; +} + +/* Stops the rebalance process of the given volume + */ +int +gd_stop_rebalance_process(glusterd_volinfo_t *volinfo) +{ + int ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + char pidfile[PATH_MAX] = ""; + + GF_ASSERT(volinfo); + + this = THIS; + GF_ASSERT(this); + + conf = this->private; + GF_ASSERT(conf); + + GLUSTERD_GET_DEFRAG_PID_FILE(pidfile, volinfo, conf); + ret = glusterd_service_stop("rebalance", pidfile, SIGTERM, _gf_true); + + return ret; +} + +rpc_clnt_t * +glusterd_rpc_clnt_unref(glusterd_conf_t *conf, rpc_clnt_t *rpc) +{ + rpc_clnt_t *ret = NULL; + + GF_ASSERT(conf); + GF_ASSERT(rpc); + synclock_unlock(&conf->big_lock); + (void)rpc_clnt_reconnect_cleanup(&rpc->conn); + ret = rpc_clnt_unref(rpc); + synclock_lock(&conf->big_lock); + + return ret; +} + +int32_t +glusterd_compare_volume_name(struct cds_list_head *list1, + struct cds_list_head *list2) +{ + glusterd_volinfo_t *volinfo1 = NULL; + glusterd_volinfo_t *volinfo2 = NULL; + + volinfo1 = cds_list_entry(list1, glusterd_volinfo_t, vol_list); + volinfo2 = cds_list_entry(list2, glusterd_volinfo_t, vol_list); + return strcmp(volinfo1->volname, volinfo2->volname); +} + +static int +gd_default_synctask_cbk(int ret, call_frame_t *frame, void *opaque) +{ + glusterd_conf_t *priv = THIS->private; + synclock_unlock(&priv->big_lock); + return ret; +} + +void +glusterd_launch_synctask(synctask_fn_t fn, void *opaque) +{ + xlator_t *this = NULL; + int ret = -1; + + this = THIS; + + /* synclock_lock must be called from within synctask, @fn must call it + * before it starts with its work*/ + ret = synctask_new(this->ctx->env, fn, gd_default_synctask_cbk, NULL, + opaque); + if (ret) + gf_msg(this->name, GF_LOG_CRITICAL, 0, GD_MSG_SPAWN_SVCS_FAIL, + "Failed to spawn bricks" + " and other volume related services"); +} + +/* + * glusterd_enable_default_options enable certain options by default on the + * given volume based on the cluster op-version. This is called only during + * volume create or during volume reset + * + * @volinfo - volume on which to enable the default options + * @option - option to be set to default. If NULL, all possible options will be + * set to default + * + * Returns 0 on success and -1 on failure. If @option is given, but doesn't + * match any of the options that could be set, it is a success. + */ +/* + * TODO: Make this able to parse the volume-set table to set options + * Currently, the check and set for any option which wants to make use of this + * 'framework' needs to be done here manually. This would mean more work for the + * developer. This little extra work can be avoided if we make it possible to + * parse the volume-set table to get the options which could be set and their + * default values + */ +int +glusterd_enable_default_options(glusterd_volinfo_t *volinfo, char *option) +{ + int ret = 0; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; +#ifdef IPV6_DEFAULT + char *addr_family = "inet6"; +#else + char *addr_family = "inet"; +#endif + + this = THIS; + GF_ASSERT(this); + + GF_VALIDATE_OR_GOTO(this->name, volinfo, out); + + conf = this->private; + GF_ASSERT(conf); + +#ifdef GD_OP_VERSION_3_8_0 + if (conf->op_version >= GD_OP_VERSION_3_8_0) { + /* nfs.disable needs to be enabled for new volumes with + * >= gluster version 3.7 (for now) 3.8 later + */ + if (!option || !strcmp(NFS_DISABLE_MAP_KEY, option)) { + ret = dict_set_dynstr_with_alloc(volinfo->dict, NFS_DISABLE_MAP_KEY, + "on"); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Failed to set option '" NFS_DISABLE_MAP_KEY + "' on volume " + "%s", + volinfo->volname); + goto out; + } + } + } +#endif + + if (conf->op_version >= GD_OP_VERSION_3_7_0) { + /* Set needed volume options in volinfo->dict + * For ex., + * + * if (!option || !strcmp("someoption", option) { + * ret = dict_set_str(volinfo->dict, "someoption", "on"); + * ... + * } + * */ + + /* Option 'features.quota-deem-statfs' should not be turned off + * with 'gluster volume reset <VOLNAME>', since quota features + * can be reset only with 'gluster volume quota <VOLNAME> + * disable'. + */ + + if (!option || !strcmp("features.quota-deem-statfs", option)) { + if (glusterd_is_volume_quota_enabled(volinfo)) { + ret = dict_set_dynstr_with_alloc( + volinfo->dict, "features.quota-deem-statfs", "on"); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, + GD_MSG_DICT_SET_FAILED, + "Failed to set option " + "'features.quota-deem-statfs' " + "on volume %s", + volinfo->volname); + goto out; + } + } + } + } + + if (conf->op_version >= GD_OP_VERSION_3_9_0) { + if (!option || !strcmp("transport.address-family", option)) { + if (volinfo->transport_type == GF_TRANSPORT_TCP) { + ret = dict_set_dynstr_with_alloc( + volinfo->dict, "transport.address-family", addr_family); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, + GD_MSG_DICT_SET_FAILED, + "failed to set transport." + "address-family on %s", + volinfo->volname); + goto out; + } + } + } + } + + if (conf->op_version >= GD_OP_VERSION_7_0) { + ret = dict_set_dynstr_with_alloc(volinfo->dict, + "storage.fips-mode-rchecksum", "on"); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Failed to set option 'storage.fips-mode-rchecksum' " + "on volume %s", + volinfo->volname); + goto out; + } + } +out: + return ret; +} + +void +glusterd_get_gfproxy_client_volfile(glusterd_volinfo_t *volinfo, char *path, + int path_len) +{ + char workdir[PATH_MAX] = ""; + glusterd_conf_t *priv = THIS->private; + + GLUSTERD_GET_VOLUME_DIR(workdir, volinfo, priv); + + switch (volinfo->transport_type) { + case GF_TRANSPORT_TCP: + case GF_TRANSPORT_BOTH_TCP_RDMA: + snprintf(path, path_len, "%s/trusted-%s.tcp-gfproxy-fuse.vol", + workdir, volinfo->volname); + break; + + case GF_TRANSPORT_RDMA: + snprintf(path, path_len, "%s/trusted-%s.rdma-gfproxy-fuse.vol", + workdir, volinfo->volname); + break; + default: + break; + } +} + +void +glusterd_get_rebalance_volfile(glusterd_volinfo_t *volinfo, char *path, + int path_len) +{ + char workdir[PATH_MAX] = ""; + glusterd_conf_t *priv = THIS->private; + + GLUSTERD_GET_VOLUME_DIR(workdir, volinfo, priv); + + snprintf(path, path_len, "%s/%s-rebalance.vol", workdir, volinfo->volname); +} + +/* This function will update the backend file-system + * type and the mount options in origin and snap brickinfo. + * This will be later used to perform file-system specific operation + * during LVM snapshot. + * + * @param brick_path brickpath for which fstype to be found + * @param brickinfo brickinfo of snap/origin volume + * @return 0 on success and -1 on failure + */ +int +glusterd_update_mntopts(char *brick_path, glusterd_brickinfo_t *brickinfo) +{ + int32_t ret = -1; + char *mnt_pt = NULL; + char buff[PATH_MAX] = ""; + struct mntent *entry = NULL; + struct mntent save_entry = { + 0, + }; + xlator_t *this = NULL; + + this = THIS; + GF_ASSERT(this); + GF_ASSERT(brick_path); + GF_ASSERT(brickinfo); + + ret = glusterd_get_brick_root(brick_path, &mnt_pt); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICKPATH_ROOT_GET_FAIL, + "getting the root " + "of the brick (%s) failed ", + brick_path); + goto out; + } + + entry = glusterd_get_mnt_entry_info(mnt_pt, buff, sizeof(buff), + &save_entry); + if (!entry) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_MNTENTRY_GET_FAIL, + "getting the mount entry for " + "the brick (%s) failed", + brick_path); + ret = -1; + goto out; + } + + if (snprintf(brickinfo->fstype, sizeof(brickinfo->fstype), "%s", + entry->mnt_type) >= sizeof(brickinfo->fstype)) { + ret = -1; + goto out; + } + (void)snprintf(brickinfo->mnt_opts, sizeof(brickinfo->mnt_opts), "%s", + entry->mnt_opts); + + gf_strncpy(brickinfo->mnt_opts, entry->mnt_opts, + sizeof(brickinfo->mnt_opts)); + + ret = 0; +out: + if (mnt_pt) + GF_FREE(mnt_pt); + return ret; +} + +int +glusterd_get_value_for_vme_entry(struct volopt_map_entry *vme, char **def_val) +{ + int ret = -1; + char *key = NULL; + xlator_t *this = NULL; + char *descr = NULL; + char *local_def_val = NULL; + void *dl_handle = NULL; + volume_opt_list_t vol_opt_handle = { + {0}, + }; + + this = THIS; + GF_ASSERT(this); + + CDS_INIT_LIST_HEAD(&vol_opt_handle.list); + + if (_get_xlator_opt_key_from_vme(vme, &key)) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_GET_KEY_FAILED, + "Failed to get %s key from " + "volume option entry", + vme->key); + goto out; + } + + ret = xlator_volopt_dynload(vme->voltype, &dl_handle, &vol_opt_handle); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_XLATOR_VOLOPT_DYNLOAD_ERROR, + "xlator_volopt_dynload error " + "(%d)", + ret); + ret = -2; + goto cont; + } + + ret = xlator_option_info_list(&vol_opt_handle, key, &local_def_val, &descr); + if (ret) { + /*Swallow Error if option not found*/ + gf_msg(this->name, GF_LOG_WARNING, 0, GD_MSG_GET_KEY_FAILED, + "Failed to get option for %s " + "key", + key); + ret = -2; + goto cont; + } + if (!local_def_val) + local_def_val = "(null)"; + + *def_val = gf_strdup(local_def_val); + +cont: + if (dl_handle) { + dlclose(dl_handle); + dl_handle = NULL; + vol_opt_handle.given_opt = NULL; + } + if (key) { + _free_xlator_opt_key(key); + key = NULL; + } + + if (ret) + goto out; + +out: + gf_msg_debug(this->name, 0, "Returning %d", ret); + return ret; +} + +int +glusterd_get_global_max_op_version(rpcsvc_request_t *req, dict_t *ctx, + int count) +{ + int ret = -1; + char *def_val = NULL; + char dict_key[50] = ""; + int keylen; + + ret = glusterd_mgmt_v3_initiate_all_phases(req, GD_OP_MAX_OPVERSION, ctx); + + ret = dict_get_strn(ctx, "max-opversion", SLEN("max-opversion"), &def_val); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get max-opversion value from" + " dictionary"); + goto out; + } + + keylen = sprintf(dict_key, "key%d", count); + ret = dict_set_nstrn(ctx, dict_key, keylen, GLUSTERD_MAX_OP_VERSION_KEY, + SLEN(GLUSTERD_MAX_OP_VERSION_KEY)); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set %s in " + "dictionary", + GLUSTERD_MAX_OP_VERSION_KEY); + goto out; + } + + sprintf(dict_key, "value%d", count); + ret = dict_set_dynstr_with_alloc(ctx, dict_key, def_val); + if (ret) { + gf_msg(THIS->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set %s for key %s in dictionary", def_val, + GLUSTERD_MAX_OP_VERSION_KEY); + goto out; + } + +out: + return ret; +} + +int +glusterd_get_global_options_for_all_vols(rpcsvc_request_t *req, dict_t *ctx, + char **op_errstr) +{ + int ret = -1; + int count = 0; + gf_boolean_t all_opts = _gf_false; + gf_boolean_t key_found = _gf_false; + glusterd_conf_t *priv = NULL; + xlator_t *this = NULL; + char *key = NULL; + char *key_fixed = NULL; + char dict_key[50] = ""; + char *def_val = NULL; + char err_str[PATH_MAX] = ""; + char *allvolopt = NULL; + int32_t i = 0; + gf_boolean_t exists = _gf_false; + gf_boolean_t need_free = _gf_false; + + this = THIS; + GF_VALIDATE_OR_GOTO(THIS->name, this, out); + + priv = this->private; + GF_VALIDATE_OR_GOTO(this->name, priv, out); + + GF_VALIDATE_OR_GOTO(this->name, ctx, out); + + ret = dict_get_strn(ctx, "key", SLEN("key"), &key); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Failed to get option key from dictionary"); + goto out; + } + + if (strcasecmp(key, "all") == 0) + all_opts = _gf_true; + else { + exists = glusterd_check_option_exists(key, &key_fixed); + if (!exists) { + snprintf(err_str, sizeof(err_str), + "Option " + "with name: %s does not exist", + key); + gf_msg(this->name, GF_LOG_ERROR, EINVAL, GD_MSG_UNKNOWN_KEY, "%s", + err_str); + if (key_fixed) + snprintf(err_str, sizeof(err_str), "Did you mean %s?", + key_fixed); + ret = -1; + goto out; + } + if (key_fixed) + key = key_fixed; + } + /* coverity[CONSTANT_EXPRESSION_RESULT] */ + ALL_VOLUME_OPTION_CHECK("all", _gf_true, key, ret, op_errstr, out); + + for (i = 0; valid_all_vol_opts[i].option; i++) { + allvolopt = valid_all_vol_opts[i].option; + + if (!all_opts && strcmp(key, allvolopt) != 0) + continue; + + /* Found global option */ + if (strcmp(allvolopt, GLUSTERD_MAX_OP_VERSION_KEY) == 0) { + count++; + ret = glusterd_get_global_max_op_version(req, ctx, count); + if (ret) + goto out; + else + continue; + } + + ret = dict_get_str(priv->opts, allvolopt, &def_val); + + /* If global option isn't set explicitly */ + + if (!def_val) { + if (!strcmp(allvolopt, GLUSTERD_GLOBAL_OP_VERSION_KEY)) { + gf_asprintf(&def_val, "%d", priv->op_version); + need_free = _gf_true; + } else { + gf_asprintf(&def_val, "%s (DEFAULT)", + valid_all_vol_opts[i].dflt_val); + need_free = _gf_true; + } + } + + count++; + ret = sprintf(dict_key, "key%d", count); + ret = dict_set_strn(ctx, dict_key, ret, allvolopt); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set %s in dictionary", allvolopt); + goto out; + } + + sprintf(dict_key, "value%d", count); + ret = dict_set_dynstr_with_alloc(ctx, dict_key, def_val); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set %s for key %s in dictionary", def_val, + allvolopt); + goto out; + } + + if (need_free) { + GF_FREE(def_val); + need_free = _gf_false; + } + def_val = NULL; + allvolopt = NULL; + + if (!all_opts) + break; + } + + ret = dict_set_int32n(ctx, "count", SLEN("count"), count); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set count in dictionary"); + } + +out: + if (ret && !all_opts && !key_found) { + if (err_str[0] == 0) + snprintf(err_str, sizeof(err_str), "option %s does not exist", key); + if (*op_errstr == NULL) + *op_errstr = gf_strdup(err_str); + } + + if (ret && need_free) { + GF_FREE(def_val); + } + GF_FREE(key_fixed); + gf_msg_debug(THIS->name, 0, "Returning %d", ret); + + return ret; +} + +char * +glusterd_get_option_value(glusterd_volinfo_t *volinfo, char *key) +{ + char *value = NULL; + + if (!glusterd_is_volume_replicate(volinfo)) + goto ret; + + if (!strcmp(key, "performance.client-io-threads")) { + value = "off"; + } else if (!strcmp(key, "cluster.quorum-type")) { + if (volinfo->replica_count % 2) { + value = "auto"; + } + } +ret: + return value; +} + +int +glusterd_get_default_val_for_volopt(dict_t *ctx, gf_boolean_t all_opts, + char *input_key, char *orig_key, + glusterd_volinfo_t *volinfo, + char **op_errstr) +{ + struct volopt_map_entry *vme = NULL; + int ret = -1; + int count = 0; + xlator_t *this = NULL; + char *def_val = NULL; + char *def_val_str = NULL; + char dict_key[50] = ""; + int keylen; + gf_boolean_t key_found = _gf_false; + gf_boolean_t get_value_vme = _gf_false; + glusterd_conf_t *priv = NULL; + dict_t *vol_dict = NULL; + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GF_VALIDATE_OR_GOTO(this->name, priv, out); + + vol_dict = volinfo->dict; + GF_VALIDATE_OR_GOTO(this->name, vol_dict, out); + + /* Check whether key is passed for a single option */ + if (!all_opts && !input_key) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_KEY_NULL, "Key is NULL"); + goto out; + } + + for (vme = &glusterd_volopt_map[0]; vme->key; vme++) { + if (!all_opts && strcmp(vme->key, input_key)) + continue; + key_found = _gf_true; + get_value_vme = _gf_false; + /* First look for the key in the priv->opts for global option + * and then into vol_dict, if its not present then look for + * translator default value */ + keylen = strlen(vme->key); + ret = dict_get_strn(priv->opts, vme->key, keylen, &def_val); + if (!def_val) { + ret = dict_get_strn(vol_dict, vme->key, keylen, &def_val); + if (ret == -ENOENT) + def_val = glusterd_get_option_value(volinfo, vme->key); + if (!def_val) { + if (vme->value) { + def_val = vme->value; + } else { + ret = glusterd_get_value_for_vme_entry(vme, &def_val); + get_value_vme = _gf_true; + if (!all_opts && ret) + goto out; + else if (ret == -2) + continue; + } + } + } + count++; + keylen = sprintf(dict_key, "key%d", count); + ret = dict_set_strn(ctx, dict_key, keylen, vme->key); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to " + "set %s in dictionary", + vme->key); + goto out; + } + sprintf(dict_key, "value%d", count); + if (get_value_vme) { // the value was never changed - DEFAULT is used + gf_asprintf(&def_val_str, "%s (DEFAULT)", def_val); + ret = dict_set_dynstr_with_alloc(ctx, dict_key, def_val_str); + GF_FREE(def_val_str); + def_val_str = NULL; + } else + ret = dict_set_dynstr_with_alloc(ctx, dict_key, def_val); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to " + "set %s for key %s in dictionary", + def_val, vme->key); + goto out; + } + if (get_value_vme) + GF_FREE(def_val); + + def_val = NULL; + if (!all_opts) + break; + } + if (!all_opts && !key_found) + goto out; + + ret = dict_set_int32n(ctx, "count", SLEN("count"), count); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, + "Failed to set count " + "in dictionary"); + } + +out: + if (ret && !all_opts && !key_found) { + char err_str[PATH_MAX]; + snprintf(err_str, sizeof(err_str), "option %s does not exist", + orig_key); + *op_errstr = gf_strdup(err_str); + } + if (def_val) + GF_FREE(def_val); + gf_msg_debug(this->name, 0, "Returning %d", ret); + return ret; +} + +int +glusterd_get_volopt_content(dict_t *ctx, gf_boolean_t xml_out) +{ + void *dl_handle = NULL; + volume_opt_list_t vol_opt_handle = { + {0}, + }; + char *key = NULL; + struct volopt_map_entry *vme = NULL; + int ret = -1; + char *def_val = NULL; + char *descr = NULL; + char *output = NULL; + size_t size = 0; + size_t used = 0; +#if (HAVE_LIB_XML) + xmlTextWriterPtr writer = NULL; + xmlBufferPtr buf = NULL; + + if (xml_out) { + ret = init_sethelp_xml_doc(&writer, &buf); + if (ret) /*logging done in init_xml_lib*/ + goto out; + } +#endif + + if (!xml_out) { + size = 65536; + output = GF_MALLOC(size, gf_common_mt_char); + if (output == NULL) { + ret = -1; + goto out; + } + } + + CDS_INIT_LIST_HEAD(&vol_opt_handle.list); + + for (vme = &glusterd_volopt_map[0]; vme->key; vme++) { + if ((vme->type == NO_DOC) || (vme->type == GLOBAL_NO_DOC)) + continue; + + if (vme->description) { + descr = vme->description; + def_val = vme->value; + } else { + if (_get_xlator_opt_key_from_vme(vme, &key)) { + gf_msg_debug("glusterd", 0, + "Failed to " + "get %s key from volume option entry", + vme->key); + goto out; /*Some error while getting key*/ + } + + ret = xlator_volopt_dynload(vme->voltype, &dl_handle, + &vol_opt_handle); + + if (ret) { + gf_msg_debug("glusterd", 0, "xlator_volopt_dynload error(%d)", + ret); + ret = 0; + goto cont; + } + + ret = xlator_option_info_list(&vol_opt_handle, key, &def_val, + &descr); + if (ret) { /*Swallow Error i.e if option not found*/ + gf_msg_debug("glusterd", 0, "Failed to get option for %s key", + key); + ret = 0; + goto cont; + } + } + + if (xml_out) { +#if (HAVE_LIB_XML) + if (xml_add_volset_element(writer, vme->key, def_val, descr)) { + ret = -1; + goto cont; + } +#else + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_MODULE_NOT_INSTALLED, + "Libxml not present"); +#endif + } else { + void *tmp; + int len; + + do { + len = snprintf(output + used, size - used, + "Option: %s\nDefault Value: %s\n" + "Description: %s\n\n", + vme->key, def_val, descr); + if (len < 0) { + ret = -1; + goto cont; + } + if (used + len < size) { + used += len; + break; + } + + size += (len + 65536) & ~65535; + tmp = GF_REALLOC(output, size); + if (tmp == NULL) { + ret = -1; + goto cont; + } + output = tmp; + } while (1); + } + cont: + if (dl_handle) { + dlclose(dl_handle); + dl_handle = NULL; + vol_opt_handle.given_opt = NULL; + } + if (key) { + _free_xlator_opt_key(key); + key = NULL; + } + if (ret) + goto out; + } + +#if (HAVE_LIB_XML) + if ((xml_out) && (ret = end_sethelp_xml_doc(writer))) + goto out; +#else + if (xml_out) + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_MODULE_NOT_INSTALLED, + "Libxml not present"); +#endif + + if (xml_out) { +#if (HAVE_LIB_XML) + output = gf_strdup((char *)buf->content); + if (NULL == output) { + ret = -1; + goto out; + } +#else + gf_msg("glusterd", GF_LOG_ERROR, 0, GD_MSG_MODULE_NOT_INSTALLED, + "Libxml not present"); +#endif + } + + ret = dict_set_dynstrn(ctx, "help-str", SLEN("help-str"), output); + if (ret >= 0) { + output = NULL; + } +out: + GF_FREE(output); + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +int +glusterd_check_client_op_version_support(char *volname, uint32_t op_version, + char **op_errstr) +{ + int ret = 0; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + rpc_transport_t *xprt = NULL; + + this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_ASSERT(priv); + + pthread_mutex_lock(&priv->xprt_lock); + list_for_each_entry(xprt, &priv->xprt_list, list) + { + if ((!strcmp(volname, xprt->peerinfo.volname)) && + ((op_version > xprt->peerinfo.max_op_version) || + (op_version < xprt->peerinfo.min_op_version))) { + ret = -1; + break; + } + } + pthread_mutex_unlock(&priv->xprt_lock); + + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_UNSUPPORTED_VERSION, + "Client %s is running with min_op_version as %d and " + "max_op_version as %d and don't support the required " + "op-version %d", + xprt->peerinfo.identifier, xprt->peerinfo.min_op_version, + xprt->peerinfo.max_op_version, op_version); + if (op_errstr) + ret = gf_asprintf(op_errstr, + "One of the client %s is " + "running with op-version %d and " + "doesn't support the required " + "op-version %d. This client needs to" + " be upgraded or disconnected " + "before running this command again", + xprt->peerinfo.identifier, + xprt->peerinfo.max_op_version, op_version); + + return -1; + } + return 0; +} + +gf_boolean_t +glusterd_have_peers() +{ + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + + this = THIS; + GF_ASSERT(this); + conf = this->private; + GF_ASSERT(conf); + + return !cds_list_empty(&conf->peers); +} + +gf_boolean_t +glusterd_is_volume_started(glusterd_volinfo_t *volinfo) +{ + GF_ASSERT(volinfo); + return (volinfo->status == GLUSTERD_STATUS_STARTED); +} + +int +glusterd_volume_get_type_str(glusterd_volinfo_t *volinfo, char **voltype_str) +{ + int ret = -1; + int type = 0; + + GF_VALIDATE_OR_GOTO(THIS->name, volinfo, out); + + type = get_vol_type(volinfo->type, volinfo->dist_leaf_count, + volinfo->brick_count); + + *voltype_str = vol_type_str[type]; + + ret = 0; +out: + return ret; +} + +int +glusterd_volume_get_status_str(glusterd_volinfo_t *volinfo, char *status_str) +{ + int ret = -1; + + GF_VALIDATE_OR_GOTO(THIS->name, volinfo, out); + GF_VALIDATE_OR_GOTO(THIS->name, status_str, out); + + switch (volinfo->status) { + case GLUSTERD_STATUS_NONE: + sprintf(status_str, "%s", "Created"); + break; + case GLUSTERD_STATUS_STARTED: + sprintf(status_str, "%s", "Started"); + break; + case GLUSTERD_STATUS_STOPPED: + sprintf(status_str, "%s", "Stopped"); + break; + default: + goto out; + } + ret = 0; +out: + return ret; +} + +void +glusterd_brick_get_status_str(glusterd_brickinfo_t *brickinfo, char *status_str) +{ + GF_VALIDATE_OR_GOTO(THIS->name, brickinfo, out); + GF_VALIDATE_OR_GOTO(THIS->name, status_str, out); + + switch (brickinfo->status) { + case GF_BRICK_STOPPED: + sprintf(status_str, "%s", "Stopped"); + break; + case GF_BRICK_STARTED: + sprintf(status_str, "%s", "Started"); + break; + case GF_BRICK_STARTING: + sprintf(status_str, "%s", "Starting"); + break; + case GF_BRICK_STOPPING: + sprintf(status_str, "%s", "Stopping"); + break; + default: + sprintf(status_str, "%s", "None"); + break; + } + +out: + return; +} + +int +glusterd_volume_get_transport_type_str(glusterd_volinfo_t *volinfo, + char *transport_type_str) +{ + int ret = -1; + + GF_VALIDATE_OR_GOTO(THIS->name, volinfo, out); + GF_VALIDATE_OR_GOTO(THIS->name, transport_type_str, out); + + switch (volinfo->transport_type) { + case GF_TRANSPORT_TCP: + sprintf(transport_type_str, "%s", "tcp"); + break; + case GF_TRANSPORT_RDMA: + sprintf(transport_type_str, "%s", "rdma"); + break; + case GF_TRANSPORT_BOTH_TCP_RDMA: + sprintf(transport_type_str, "%s", "tcp_rdma_both"); + break; + default: + goto out; + } + ret = 0; +out: + return ret; +} + +int +glusterd_volume_get_quorum_status_str(glusterd_volinfo_t *volinfo, + char *quorum_status_str) +{ + int ret = -1; + + GF_VALIDATE_OR_GOTO(THIS->name, volinfo, out); + GF_VALIDATE_OR_GOTO(THIS->name, quorum_status_str, out); + + switch (volinfo->quorum_status) { + case NOT_APPLICABLE_QUORUM: + sprintf(quorum_status_str, "%s", "not_applicable"); + break; + case MEETS_QUORUM: + sprintf(quorum_status_str, "%s", "meets"); + break; + case DOESNT_MEET_QUORUM: + sprintf(quorum_status_str, "%s", "does_not_meet"); + break; + default: + goto out; + } + ret = 0; +out: + return ret; +} + +int +glusterd_volume_get_rebalance_status_str(glusterd_volinfo_t *volinfo, + char *rebal_status_str) +{ + int ret = -1; + + GF_VALIDATE_OR_GOTO(THIS->name, volinfo, out); + GF_VALIDATE_OR_GOTO(THIS->name, rebal_status_str, out); + + switch (volinfo->rebal.defrag_status) { + case GF_DEFRAG_STATUS_NOT_STARTED: + sprintf(rebal_status_str, "%s", "not_started"); + break; + case GF_DEFRAG_STATUS_STARTED: + sprintf(rebal_status_str, "%s", "started"); + break; + case GF_DEFRAG_STATUS_STOPPED: + sprintf(rebal_status_str, "%s", "stopped"); + break; + case GF_DEFRAG_STATUS_COMPLETE: + sprintf(rebal_status_str, "%s", "completed"); + break; + case GF_DEFRAG_STATUS_FAILED: + sprintf(rebal_status_str, "%s", "failed"); + break; + case GF_DEFRAG_STATUS_LAYOUT_FIX_STARTED: + sprintf(rebal_status_str, "%s", "layout_fix_started"); + break; + case GF_DEFRAG_STATUS_LAYOUT_FIX_STOPPED: + sprintf(rebal_status_str, "%s", "layout_fix_stopped"); + break; + case GF_DEFRAG_STATUS_LAYOUT_FIX_COMPLETE: + sprintf(rebal_status_str, "%s", "layout_fix_complete"); + break; + case GF_DEFRAG_STATUS_LAYOUT_FIX_FAILED: + sprintf(rebal_status_str, "%s", "layout_fix_failed"); + break; + default: + goto out; + } + ret = 0; +out: + return ret; +} + +/* This function will insert the element to the list in a order. + Order will be based on the compare function provided as a input. + If element to be inserted in ascending order compare should return: + 0: if both the arguments are equal + >0: if first argument is greater than second argument + <0: if first argument is less than second argument */ +void +glusterd_list_add_order(struct cds_list_head *new, struct cds_list_head *head, + int (*compare)(struct cds_list_head *, + struct cds_list_head *)) +{ + struct cds_list_head *pos = NULL; + + cds_list_for_each_rcu(pos, head) + { + if (compare(new, pos) <= 0) + break; + } + + cds_list_add_rcu(new, rcu_dereference(pos->prev)); +} + +int32_t +glusterd_count_connected_peers(int32_t *count) +{ + glusterd_peerinfo_t *peerinfo = NULL; + glusterd_conf_t *conf = NULL; + int32_t ret = -1; + xlator_t *this = NULL; + + this = THIS; + GF_VALIDATE_OR_GOTO("glusterd", this, out); + conf = this->private; + GF_VALIDATE_OR_GOTO(this->name, conf, out); + GF_VALIDATE_OR_GOTO(this->name, count, out); + + *count = 1; + + RCU_READ_LOCK; + cds_list_for_each_entry_rcu(peerinfo, &conf->peers, uuid_list) + { + /* Find peer who is connected and is a friend */ + if ((peerinfo->connected) && + (peerinfo->state.state == GD_FRIEND_STATE_BEFRIENDED)) { + (*count)++; + } + } + RCU_READ_UNLOCK; + + ret = 0; +out: + return ret; +} + +char * +gd_get_shd_key(int type) +{ + char *key = NULL; + + switch (type) { + case GF_CLUSTER_TYPE_REPLICATE: + key = "cluster.self-heal-daemon"; + break; + case GF_CLUSTER_TYPE_DISPERSE: + key = "cluster.disperse-self-heal-daemon"; + break; + default: + key = NULL; + break; + } + return key; +} + +int +glusterd_handle_replicate_brick_ops(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo, + glusterd_op_t op) +{ + int32_t ret = -1; + char tmpmount[] = "/tmp/mntXXXXXX"; + char logfile[PATH_MAX] = ""; + int dirty[3] = { + 0, + }; + runner_t runner = {0}; + glusterd_conf_t *priv = NULL; + char *pid = NULL; + char vpath[PATH_MAX] = ""; + char *volfileserver = NULL; + + xlator_t *this = THIS; + GF_ASSERT(this); + priv = this->private; + GF_VALIDATE_OR_GOTO(this->name, priv, out); + + dirty[2] = hton32(1); + + ret = sys_lsetxattr(brickinfo->path, GF_AFR_DIRTY, dirty, sizeof(dirty), 0); + if (ret == -1) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_SET_XATTR_FAIL, + "Attribute=%s", GF_AFR_DIRTY, "Reason=%s", strerror(errno), + NULL); + goto out; + } + + if (mkdtemp(tmpmount) == NULL) { + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_CREATE_DIR_FAILED, + NULL); + ret = -1; + goto out; + } + + ret = gf_asprintf(&pid, "%d", GF_CLIENT_PID_ADD_REPLICA_MOUNT); + if (ret < 0) + goto out; + + switch (op) { + case GD_OP_REPLACE_BRICK: + if (dict_get_strn(this->options, "transport.socket.bind-address", + SLEN("transport.socket.bind-address"), + &volfileserver) != 0) + volfileserver = "localhost"; + + snprintf(logfile, sizeof(logfile), "%s/%s-replace-brick-mount.log", + priv->logdir, volinfo->volname); + if (!*logfile) { + ret = -1; + goto out; + } + runinit(&runner); + runner_add_args(&runner, SBIN_DIR "/glusterfs", "-s", volfileserver, + "--volfile-id", volinfo->volname, "--client-pid", + pid, "-l", logfile, tmpmount, NULL); + break; + + case GD_OP_ADD_BRICK: + snprintf(logfile, sizeof(logfile), "%s/%s-add-brick-mount.log", + priv->logdir, volinfo->volname); + if (!*logfile) { + ret = -1; + goto out; + } + ret = glusterd_get_dummy_client_filepath(vpath, volinfo, + volinfo->transport_type); + if (ret) { + gf_log("", GF_LOG_ERROR, + "Failed to get " + "volfile path"); + goto out; + } + runinit(&runner); + runner_add_args(&runner, SBIN_DIR "/glusterfs", "--volfile", vpath, + "--client-pid", pid, "-l", logfile, tmpmount, NULL); + break; + default: + break; + } + synclock_unlock(&priv->big_lock); + ret = runner_run(&runner); + + if (ret) { + gf_log(this->name, GF_LOG_ERROR, + "mount command" + " failed."); + goto lock; + } + ret = sys_lsetxattr( + tmpmount, + (op == GD_OP_REPLACE_BRICK) ? GF_AFR_REPLACE_BRICK : GF_AFR_ADD_BRICK, + brickinfo->brick_id, sizeof(brickinfo->brick_id), 0); + if (ret == -1) + gf_smsg(this->name, GF_LOG_ERROR, errno, GD_MSG_SET_XATTR_FAIL, + "Attribute=%s, Reason=%s", + (op == GD_OP_REPLACE_BRICK) ? GF_AFR_REPLACE_BRICK + : GF_AFR_ADD_BRICK, + strerror(errno), NULL); + gf_umount_lazy(this->name, tmpmount, 1); +lock: + synclock_lock(&priv->big_lock); +out: + if (pid) + GF_FREE(pid); + gf_msg_debug(this->name, 0, "Returning with ret"); + return ret; +} + +void +assign_brick_groups(glusterd_volinfo_t *volinfo) +{ + glusterd_brickinfo_t *brickinfo = NULL; + uint16_t group_num = 0; + int in_group = 0; + + list_for_each_entry(brickinfo, &volinfo->bricks, brick_list) + { + brickinfo->group = group_num; + if (++in_group >= volinfo->replica_count) { + in_group = 0; + ++group_num; + } + } +} + +glusterd_brickinfo_t * +get_last_brick_of_brick_group(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t *brickinfo) +{ + glusterd_brickinfo_t *next = NULL; + glusterd_brickinfo_t *last = NULL; + + last = brickinfo; + for (;;) { + next = list_next(last, &volinfo->bricks, glusterd_brickinfo_t, + brick_list); + if (!next || (next->group != brickinfo->group)) { + break; + } + last = next; + } + + return last; +} + +int +glusterd_get_rb_dst_brickinfo(glusterd_volinfo_t *volinfo, + glusterd_brickinfo_t **brickinfo) +{ + int32_t ret = -1; + + if (!volinfo || !brickinfo) + goto out; + + *brickinfo = volinfo->rep_brick.dst_brick; + + ret = 0; + +out: + return ret; +} + +int +rb_update_dstbrick_port(glusterd_brickinfo_t *dst_brickinfo, dict_t *rsp_dict, + dict_t *req_dict) +{ + int ret = 0; + int dict_ret = 0; + int dst_port = 0; + + dict_ret = dict_get_int32n(req_dict, "dst-brick-port", + SLEN("dst-brick-port"), &dst_port); + if (!dict_ret) + dst_brickinfo->port = dst_port; + + if (gf_is_local_addr(dst_brickinfo->hostname)) { + gf_msg("glusterd", GF_LOG_INFO, 0, GD_MSG_BRK_PORT_NO_ADD_INDO, + "adding dst-brick port no %d", dst_port); + + if (rsp_dict) { + ret = dict_set_int32n(rsp_dict, "dst-brick-port", + SLEN("dst-brick-port"), dst_brickinfo->port); + if (ret) { + gf_msg_debug("glusterd", 0, + "Could not set dst-brick port no in rsp dict"); + goto out; + } + } + + if (req_dict && !dict_ret) { + ret = dict_set_int32n(req_dict, "dst-brick-port", + SLEN("dst-brick-port"), dst_brickinfo->port); + if (ret) { + gf_msg_debug("glusterd", 0, "Could not set dst-brick port no"); + goto out; + } + } + } +out: + return ret; +} + +int +glusterd_brick_op_prerequisites(dict_t *dict, char **op, glusterd_op_t *gd_op, + char **volname, glusterd_volinfo_t **volinfo, + char **src_brick, + glusterd_brickinfo_t **src_brickinfo, + char *pidfile, char **op_errstr, + dict_t *rsp_dict) +{ + int ret = 0; + char msg[2048] = ""; + gsync_status_param_t param = { + 0, + }; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + glusterd_volinfo_t *v = NULL; + glusterd_brickinfo_t *b = NULL; + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GF_ASSERT(priv); + + ret = dict_get_strn(dict, "operation", SLEN("operation"), op); + if (ret) { + gf_msg_debug(this->name, 0, "dict get on operation type failed"); + goto out; + } + + *gd_op = gd_cli_to_gd_op(*op); + if (*gd_op < 0) + goto out; + + ret = dict_get_strn(dict, "volname", SLEN("volname"), volname); + + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to get volume name"); + goto out; + } + + ret = glusterd_volinfo_find(*volname, volinfo); + if (ret) { + snprintf(msg, sizeof(msg), "volume: %s does not exist", *volname); + *op_errstr = gf_strdup(msg); + goto out; + } + + if (GLUSTERD_STATUS_STARTED != (*volinfo)->status) { + ret = -1; + snprintf(msg, sizeof(msg), "volume: %s is not started", *volname); + *op_errstr = gf_strdup(msg); + goto out; + } + + /* If geo-rep is configured, for this volume, it should be stopped. */ + param.volinfo = *volinfo; + ret = glusterd_check_geo_rep_running(¶m, op_errstr); + if (ret || param.is_active) { + ret = -1; + goto out; + } + + if (glusterd_is_defrag_on(*volinfo)) { + snprintf(msg, sizeof(msg), + "Volume name %s rebalance is in " + "progress. Please retry after completion", + *volname); + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_OIP_RETRY_LATER, "%s", msg); + *op_errstr = gf_strdup(msg); + ret = -1; + goto out; + } + + if (dict) { + if (!glusterd_is_fuse_available()) { + gf_msg(this->name, GF_LOG_ERROR, 0, + (*gd_op == GD_OP_REPLACE_BRICK) + ? GD_MSG_RB_CMD_FAIL + : GD_MSG_RESET_BRICK_CMD_FAIL, + "Unable to open /dev/" + "fuse (%s), %s command failed", + strerror(errno), gd_rb_op_to_str(*op)); + snprintf(msg, sizeof(msg), + "Fuse unavailable\n " + "%s failed", + gd_rb_op_to_str(*op)); + *op_errstr = gf_strdup(msg); + ret = -1; + goto out; + } + } + + ret = dict_get_strn(dict, "src-brick", SLEN("src-brick"), src_brick); + + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to get src brick"); + goto out; + } + + gf_msg_debug(this->name, 0, "src brick=%s", *src_brick); + + ret = glusterd_volume_brickinfo_get_by_brick(*src_brick, *volinfo, + src_brickinfo, _gf_false); + if (ret) { + snprintf(msg, sizeof(msg), + "brick: %s does not exist in " + "volume: %s", + *src_brick, *volname); + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRICK_NOT_FOUND, + "Brick=%s, Volume=%s", *src_brick, *volname, NULL); + *op_errstr = gf_strdup(msg); + goto out; + } + + if (gf_is_local_addr((*src_brickinfo)->hostname)) { + gf_msg_debug(this->name, 0, "I AM THE SOURCE HOST"); + if ((*src_brickinfo)->port && rsp_dict) { + ret = dict_set_int32n(rsp_dict, "src-brick-port", + SLEN("src-brick-port"), + (*src_brickinfo)->port); + if (ret) { + gf_msg_debug(this->name, 0, "Could not set src-brick-port=%d", + (*src_brickinfo)->port); + } + } + + v = *volinfo; + b = *src_brickinfo; + GLUSTERD_GET_BRICK_PIDFILE(pidfile, v, b, priv); + } + + ret = 0; +out: + return ret; +} + +int +glusterd_get_dst_brick_info(char **dst_brick, char *volname, char **op_errstr, + glusterd_brickinfo_t **dst_brickinfo, char **host, + dict_t *dict, char **dup_dstbrick) +{ + char *path = NULL; + char *c = NULL; + char msg[2048] = ""; + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + int ret = 0; + + this = THIS; + GF_ASSERT(this); + + priv = this->private; + GF_ASSERT(priv); + + ret = dict_get_strn(dict, "dst-brick", SLEN("dst-brick"), dst_brick); + + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to get dest brick."); + goto out; + } + + gf_msg_debug(this->name, 0, "dst brick=%s", *dst_brick); + + if (!glusterd_store_is_valid_brickpath(volname, *dst_brick) || + !glusterd_is_valid_volfpath(volname, *dst_brick)) { + snprintf(msg, sizeof(msg), + "brick path %s is too " + "long.", + *dst_brick); + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BRKPATH_TOO_LONG, "%s", msg); + *op_errstr = gf_strdup(msg); + + ret = -1; + goto out; + } + + *dup_dstbrick = gf_strdup(*dst_brick); + if (!*dup_dstbrick) { + ret = -1; + goto out; + } + + /* + * IPv4 address contains '.' and ipv6 addresses contains ':' + * So finding the last occurrence of ':' to + * mark the start of brick path + */ + c = strrchr(*dup_dstbrick, ':'); + if (c != NULL) { + c[0] = '\0'; + *host = *dup_dstbrick; + path = c++; + } + + if (!host || !path) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BAD_FORMAT, + "dst brick %s is not of " + "form <HOSTNAME>:<export-dir>", + *dst_brick); + ret = -1; + goto out; + } + + ret = glusterd_brickinfo_new_from_brick(*dst_brick, dst_brickinfo, _gf_true, + NULL); + if (ret) + goto out; + + ret = 0; +out: + return ret; +} + +int +glusterd_get_volinfo_from_brick(char *brick, glusterd_volinfo_t **volinfo) +{ + int ret = -1; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + glusterd_volinfo_t *voliter = NULL; + glusterd_brickinfo_t *brickiter = NULL; + glusterd_snap_t *snap = NULL; + + this = THIS; + GF_VALIDATE_OR_GOTO("glusterd", this, out); + conf = this->private; + GF_VALIDATE_OR_GOTO(this->name, conf, out); + + /* First check for normal volumes */ + cds_list_for_each_entry(voliter, &conf->volumes, vol_list) + { + cds_list_for_each_entry(brickiter, &voliter->bricks, brick_list) + { + if (gf_uuid_compare(brickiter->uuid, MY_UUID)) + continue; + if (!strcmp(brickiter->path, brick)) { + *volinfo = voliter; + return 0; + } + } + } + /* In case normal volume is not found, check for snapshot volumes */ + cds_list_for_each_entry(snap, &conf->snapshots, snap_list) + { + cds_list_for_each_entry(voliter, &snap->volumes, vol_list) + { + cds_list_for_each_entry(brickiter, &voliter->bricks, brick_list) + { + if (gf_uuid_compare(brickiter->uuid, MY_UUID)) + continue; + if (!strcmp(brickiter->path, brick)) { + *volinfo = voliter; + return 0; + } + } + } + } + +out: + return ret; +} + +glusterd_op_t +gd_cli_to_gd_op(char *cli_op) +{ + if (!strcmp(cli_op, "GF_RESET_OP_START") || + !strcmp(cli_op, "GF_RESET_OP_COMMIT") || + !strcmp(cli_op, "GF_RESET_OP_COMMIT_FORCE")) { + return GD_OP_RESET_BRICK; + } + + if (!strcmp(cli_op, "GF_REPLACE_OP_COMMIT_FORCE")) + return GD_OP_REPLACE_BRICK; + + return -1; +} + +char * +gd_rb_op_to_str(char *op) +{ + if (!strcmp(op, "GF_RESET_OP_START")) + return "reset-brick start"; + if (!strcmp(op, "GF_RESET_OP_COMMIT")) + return "reset-brick commit"; + if (!strcmp(op, "GF_RESET_OP_COMMIT_FORCE")) + return "reset-brick commit force"; + if (!strcmp(op, "GF_REPLACE_OP_COMMIT_FORCE")) + return "replace-brick commit force"; + return NULL; +} + +gf_boolean_t +glusterd_is_profile_on(glusterd_volinfo_t *volinfo) +{ + int ret = -1; + gf_boolean_t is_latency_on = _gf_false; + gf_boolean_t is_fd_stats_on = _gf_false; + + GF_ASSERT(volinfo); + + ret = glusterd_volinfo_get_boolean(volinfo, VKEY_DIAG_CNT_FOP_HITS); + if (ret != -1) + is_fd_stats_on = ret; + ret = glusterd_volinfo_get_boolean(volinfo, VKEY_DIAG_LAT_MEASUREMENT); + if (ret != -1) + is_latency_on = ret; + if ((_gf_true == is_latency_on) && (_gf_true == is_fd_stats_on)) + return _gf_true; + return _gf_false; +} + +int32_t +glusterd_add_shd_to_dict(glusterd_volinfo_t *volinfo, dict_t *dict, + int32_t count) +{ + int ret = -1; + int32_t pid = -1; + int32_t brick_online = -1; + char key[64] = {0}; + int keylen; + char *pidfile = NULL; + xlator_t *this = NULL; + char *uuid_str = NULL; + + this = THIS; + GF_VALIDATE_OR_GOTO(THIS->name, this, out); + + GF_VALIDATE_OR_GOTO(this->name, volinfo, out); + GF_VALIDATE_OR_GOTO(this->name, dict, out); + + keylen = snprintf(key, sizeof(key), "brick%d.hostname", count); + ret = dict_set_nstrn(dict, key, keylen, "Self-heal Daemon", + SLEN("Self-heal Daemon")); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, "Key=%s", + key, NULL); + goto out; + } + + keylen = snprintf(key, sizeof(key), "brick%d.path", count); + uuid_str = gf_strdup(uuid_utoa(MY_UUID)); + if (!uuid_str) { + ret = -1; + goto out; + } + ret = dict_set_dynstrn(dict, key, keylen, uuid_str); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, "Key=%s", + key, NULL); + goto out; + } + uuid_str = NULL; + + /* shd doesn't have a port. but the cli needs a port key with + * a zero value to parse. + * */ + + keylen = snprintf(key, sizeof(key), "brick%d.port", count); + ret = dict_set_int32n(dict, key, keylen, 0); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, "Key=%s", + key, NULL); + goto out; + } + + pidfile = volinfo->shd.svc.proc.pidfile; + + brick_online = gf_is_service_running(pidfile, &pid); + + /* If shd is not running, then don't print the pid */ + if (!brick_online) + pid = -1; + keylen = snprintf(key, sizeof(key), "brick%d.pid", count); + ret = dict_set_int32n(dict, key, keylen, pid); + if (ret) { + gf_smsg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_SET_FAILED, "Key=%s", + key, NULL); + goto out; + } + + keylen = snprintf(key, sizeof(key), "brick%d.status", count); + ret = dict_set_int32n(dict, key, keylen, brick_online); + +out: + if (uuid_str) + GF_FREE(uuid_str); + if (ret) + gf_msg(this ? this->name : "glusterd", GF_LOG_ERROR, 0, + GD_MSG_DICT_SET_FAILED, + "Returning %d. adding values to dict failed", ret); + + return ret; +} + +static gf_ai_compare_t +glusterd_compare_addrinfo(struct addrinfo *first, struct addrinfo *next) +{ + int ret = -1; + struct addrinfo *tmp1 = NULL; + struct addrinfo *tmp2 = NULL; + char firstip[NI_MAXHOST] = {0.}; + char nextip[NI_MAXHOST] = { + 0, + }; + + for (tmp1 = first; tmp1 != NULL; tmp1 = tmp1->ai_next) { + ret = getnameinfo(tmp1->ai_addr, tmp1->ai_addrlen, firstip, NI_MAXHOST, + NULL, 0, NI_NUMERICHOST); + if (ret) + return GF_AI_COMPARE_ERROR; + for (tmp2 = next; tmp2 != NULL; tmp2 = tmp2->ai_next) { + ret = getnameinfo(tmp2->ai_addr, tmp2->ai_addrlen, nextip, + NI_MAXHOST, NULL, 0, NI_NUMERICHOST); + if (ret) + return GF_AI_COMPARE_ERROR; + if (!strcmp(firstip, nextip)) { + return GF_AI_COMPARE_MATCH; + } + } + } + return GF_AI_COMPARE_NO_MATCH; +} + +/* Check for non optimal brick order for Replicate/Disperse : + * Checks if bricks belonging to a replicate or disperse + * volume are present on the same server + */ +int32_t +glusterd_check_brick_order(dict_t *dict, char *err_str, int32_t type, + char **volname, char **brick_list, + int32_t *brick_count, int32_t sub_count) +{ + int ret = -1; + int i = 0; + int j = 0; + int k = 0; + xlator_t *this = NULL; + addrinfo_list_t *ai_list = NULL; + addrinfo_list_t *ai_list_tmp1 = NULL; + addrinfo_list_t *ai_list_tmp2 = NULL; + char *brick = NULL; + char *brick_list_dup = NULL; + char *brick_list_ptr = NULL; + char *tmpptr = NULL; + struct addrinfo *ai_info = NULL; + char brick_addr[128] = { + 0, + }; + int addrlen = 0; + + const char failed_string[2048] = + "Failed to perform brick order " + "check. Use 'force' at the end of the command" + " if you want to override this behavior. "; + const char found_string[2048] = + "Multiple bricks of a %s " + "volume are present on the same server. This " + "setup is not optimal. Bricks should be on " + "different nodes to have best fault tolerant " + "configuration. Use 'force' at the end of the " + "command if you want to override this " + "behavior. "; + + this = THIS; + + GF_ASSERT(this); + + ai_list = MALLOC(sizeof(addrinfo_list_t)); + ai_list->info = NULL; + CDS_INIT_LIST_HEAD(&ai_list->list); + + if (!(*volname)) { + ret = dict_get_strn(dict, "volname", SLEN("volname"), &(*volname)); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Unable to get volume name"); + goto out; + } + } + + if (!(*brick_list)) { + ret = dict_get_strn(dict, "bricks", SLEN("bricks"), &(*brick_list)); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Bricks check : Could not " + "retrieve bricks list"); + goto out; + } + } + + if (!(*brick_count)) { + ret = dict_get_int32n(dict, "count", SLEN("count"), &(*brick_count)); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_DICT_GET_FAILED, + "Bricks check : Could not " + "retrieve brick count"); + goto out; + } + } + + brick_list_dup = brick_list_ptr = gf_strdup(*brick_list); + /* Resolve hostnames and get addrinfo */ + while (i < *brick_count) { + ++i; + brick = strtok_r(brick_list_dup, " \n", &tmpptr); + brick_list_dup = tmpptr; + if (brick == NULL) + goto check_failed; + tmpptr = strrchr(brick, ':'); + if (tmpptr == NULL) + goto check_failed; + addrlen = strlen(brick) - strlen(tmpptr); + strncpy(brick_addr, brick, addrlen); + brick_addr[addrlen] = '\0'; + ret = getaddrinfo(brick_addr, NULL, NULL, &ai_info); + if (ret != 0) { + ret = 0; + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_HOSTNAME_RESOLVE_FAIL, + "unable to resolve host name for addr %s", brick_addr); + goto out; + } + ai_list_tmp1 = MALLOC(sizeof(addrinfo_list_t)); + if (ai_list_tmp1 == NULL) { + ret = 0; + gf_msg(this->name, GF_LOG_ERROR, ENOMEM, GD_MSG_NO_MEMORY, + "failed to allocate " + "memory"); + freeaddrinfo(ai_info); + goto out; + } + ai_list_tmp1->info = ai_info; + cds_list_add_tail(&ai_list_tmp1->list, &ai_list->list); + ai_list_tmp1 = NULL; + } + + i = 0; + ai_list_tmp1 = cds_list_entry(ai_list->list.next, addrinfo_list_t, list); + + if (*brick_count < sub_count) { + sub_count = *brick_count; + } + + /* Check for bad brick order */ + while (i < *brick_count) { + ++i; + ai_info = ai_list_tmp1->info; + ai_list_tmp1 = cds_list_entry(ai_list_tmp1->list.next, addrinfo_list_t, + list); + if (0 == i % sub_count) { + j = 0; + continue; + } + ai_list_tmp2 = ai_list_tmp1; + k = j; + while (k < sub_count - 1) { + ++k; + ret = glusterd_compare_addrinfo(ai_info, ai_list_tmp2->info); + if (GF_AI_COMPARE_ERROR == ret) + goto check_failed; + if (GF_AI_COMPARE_MATCH == ret) + goto found_bad_brick_order; + ai_list_tmp2 = cds_list_entry(ai_list_tmp2->list.next, + addrinfo_list_t, list); + } + ++j; + } + gf_msg_debug(this->name, 0, "Brick order okay"); + ret = 0; + goto out; + +check_failed: + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_BAD_BRKORDER_CHECK_FAIL, + "Failed bad brick order check"); + snprintf(err_str, sizeof(failed_string), failed_string); + ret = -1; + goto out; + +found_bad_brick_order: + gf_msg(this->name, GF_LOG_INFO, 0, GD_MSG_BAD_BRKORDER, + "Bad brick order found"); + if (type == GF_CLUSTER_TYPE_DISPERSE) { + snprintf(err_str, sizeof(found_string), found_string, "disperse"); + } else { + snprintf(err_str, sizeof(found_string), found_string, "replicate"); + } + + ret = -1; +out: + ai_list_tmp2 = NULL; + GF_FREE(brick_list_ptr); + cds_list_for_each_entry(ai_list_tmp1, &ai_list->list, list) + { + if (ai_list_tmp1->info) + freeaddrinfo(ai_list_tmp1->info); + free(ai_list_tmp2); + ai_list_tmp2 = ai_list_tmp1; + } + free(ai_list); + free(ai_list_tmp2); + gf_msg_debug("glusterd", 0, "Returning %d", ret); + return ret; +} + +static gf_boolean_t +search_peer_in_auth_list(char *peer_hostname, char *auth_allow_list) +{ + if (strstr(auth_allow_list, peer_hostname)) { + return _gf_true; + } + + return _gf_false; +} + +/* glusterd_add_peers_to_auth_list() adds peers into auth.allow list + * if auth.allow list is not empty. This is called for add-brick and + * replica brick operations to avoid failing the temporary mount. New + * volfiles will be generated and clients are notified reg new volfiles. + */ +void +glusterd_add_peers_to_auth_list(char *volname) +{ + int ret = 0; + glusterd_volinfo_t *volinfo = NULL; + glusterd_peerinfo_t *peerinfo = NULL; + xlator_t *this = NULL; + glusterd_conf_t *conf = NULL; + int32_t len = 0; + char *auth_allow_list = NULL; + char *new_auth_allow_list = NULL; + + this = THIS; + GF_ASSERT(this); + conf = this->private; + GF_ASSERT(conf); + + GF_VALIDATE_OR_GOTO(this->name, volname, out); + + ret = glusterd_volinfo_find(volname, &volinfo); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_VOL_NOT_FOUND, + "Unable to find volume: %s", volname); + goto out; + } + + ret = dict_get_str_sizen(volinfo->dict, "auth.allow", &auth_allow_list); + if (ret) { + gf_msg(this->name, GF_LOG_INFO, errno, GD_MSG_DICT_GET_FAILED, + "auth allow list is not set"); + goto out; + } + cds_list_for_each_entry_rcu(peerinfo, &conf->peers, uuid_list) + { + len += strlen(peerinfo->hostname); + } + len += strlen(auth_allow_list) + 1; + + new_auth_allow_list = GF_CALLOC(1, len, gf_common_mt_char); + + new_auth_allow_list = strncat(new_auth_allow_list, auth_allow_list, + strlen(auth_allow_list)); + cds_list_for_each_entry_rcu(peerinfo, &conf->peers, uuid_list) + { + ret = search_peer_in_auth_list(peerinfo->hostname, new_auth_allow_list); + if (!ret) { + gf_log(this->name, GF_LOG_DEBUG, + "peer %s not found in auth.allow list", peerinfo->hostname); + new_auth_allow_list = strcat(new_auth_allow_list, ","); + new_auth_allow_list = strncat(new_auth_allow_list, + peerinfo->hostname, + strlen(peerinfo->hostname)); + } + } + if (strcmp(new_auth_allow_list, auth_allow_list) != 0) { + /* In case, new_auth_allow_list is not same as auth_allow_list, + * we need to update the volinfo->dict with new_auth_allow_list. + * we delete the auth_allow_list and replace it with + * new_auth_allow_list. for reverting the changes in post commit, we + * keep the copy of auth_allow_list as old_auth_allow_list in + * volinfo->dict. + */ + dict_del_sizen(volinfo->dict, "auth.allow"); + ret = dict_set_strn(volinfo->dict, "auth.allow", SLEN("auth.allow"), + new_auth_allow_list); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Unable to set new auth.allow list"); + goto out; + } + ret = dict_set_strn(volinfo->dict, "old.auth.allow", + SLEN("old.auth.allow"), auth_allow_list); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Unable to set old auth.allow list"); + goto out; + } + ret = glusterd_create_volfiles_and_notify_services(volinfo); + if (ret) { + gf_msg(this->name, GF_LOG_WARNING, 0, GD_MSG_VOLFILE_CREATE_FAIL, + "failed to create volfiles"); + goto out; + } + } +out: + GF_FREE(new_auth_allow_list); + return; +} + +int +glusterd_replace_old_auth_allow_list(char *volname) +{ + int ret = 0; + glusterd_volinfo_t *volinfo = NULL; + xlator_t *this = NULL; + char *old_auth_allow_list = NULL; + + this = THIS; + GF_ASSERT(this); + + GF_VALIDATE_OR_GOTO(this->name, volname, out); + + ret = glusterd_volinfo_find(volname, &volinfo); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_VOL_NOT_FOUND, + "Unable to find volume: %s", volname); + goto out; + } + + ret = dict_get_str_sizen(volinfo->dict, "old.auth.allow", + &old_auth_allow_list); + if (ret) { + gf_msg(this->name, GF_LOG_INFO, errno, GD_MSG_DICT_GET_FAILED, + "old auth allow list is not set, no need to replace the list"); + ret = 0; + goto out; + } + + dict_del_sizen(volinfo->dict, "auth.allow"); + ret = dict_set_strn(volinfo->dict, "auth.allow", SLEN("auth.allow"), + old_auth_allow_list); + if (ret) { + gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_DICT_SET_FAILED, + "Unable to replace auth.allow list"); + goto out; + } + + dict_del_sizen(volinfo->dict, "old.auth.allow"); + + ret = glusterd_create_volfiles_and_notify_services(volinfo); + if (ret) { + gf_msg(this->name, GF_LOG_WARNING, 0, GD_MSG_VOLFILE_CREATE_FAIL, + "failed to create volfiles"); + goto out; + } + ret = glusterd_store_volinfo(volinfo, GLUSTERD_VOLINFO_VER_AC_INCREMENT); + if (ret) { + gf_msg(this->name, GF_LOG_WARNING, 0, GD_MSG_VOLINFO_STORE_FAIL, + "failed to store volinfo"); + goto out; + } +out: + return ret; +} |