gluster-CLI-and-mgmt-glusterd-added-to-codebase

Signed-off-by: Vijay Bellur <vijay@gluster.com>
Signed-off-by: Amar Tumballi <amar@gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 971 (dynamic volume management)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971

1 files changed, 478 insertions, 0 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd.c b/xlators/mgmt/glusterd/src/glusterd.c
new file mode 100644
index 000000000..9c688c136
--- /dev/null
+++ b/xlators/mgmt/glusterd/src/glusterd.c
@@ -0,0 +1,478 @@
+/*
+  Copyright (c) 2006-2009 Gluster, Inc. <http://www.gluster.com>
+  This file is part of GlusterFS.
+
+  GlusterFS is GF_FREE software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published
+  by the Free Software Foundation; either version 3 of the License,
+  or (at your option) any later version.
+
+  GlusterFS is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see
+  <http://www.gnu.org/licenses/>.
+*/
+
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+#include <time.h>
+#include <sys/uio.h>
+#include <sys/resource.h>
+
+#include <libgen.h>
+#include <uuid/uuid.h>
+
+#include "glusterd.h"
+#include "rpcsvc.h"
+#include "fnmatch.h"
+#include "xlator.h"
+//#include "protocol.h"
+#include "call-stub.h"
+#include "defaults.h"
+#include "list.h"
+#include "dict.h"
+#include "compat.h"
+#include "compat-errno.h"
+#include "statedump.h"
+//#include "md5.h"
+#include "glusterd-sm.h"
+#include "glusterd-op-sm.h"
+
+
+static uuid_t glusterd_uuid;
+extern struct rpcsvc_program glusterd1_mop_prog;
+extern struct rpc_clnt_program glusterd3_1_mgmt_prog;
+
+static int
+glusterd_retrieve_uuid ()
+{
+        return -1;
+}
+
+static int
+glusterd_store_uuid ()
+{
+        return 0;
+}
+
+static int
+glusterd_uuid_init ()
+{
+        int     ret = -1;
+        char    str[50];
+
+        ret = glusterd_retrieve_uuid ();
+
+        if (!ret) {
+                gf_log ("glusterd", GF_LOG_NORMAL,
+                                "retrieved UUID: %s", glusterd_uuid);
+                return 0;
+        }
+
+        uuid_generate (glusterd_uuid);
+        uuid_unparse (glusterd_uuid, str);
+
+        gf_log ("glusterd", GF_LOG_NORMAL,
+                        "generated UUID: %s",str);
+
+        ret = glusterd_store_uuid ();
+
+        if (ret) {
+                gf_log ("glusterd", GF_LOG_ERROR,
+                          "Unable to store generated UUID");
+                return ret;
+        }
+
+        return 0;
+}
+
+
+/* xxx_MOPS */
+
+#if 0
+
+#endif
+
+
+
+
+
+
+
+
+
+
+/*
+ * glusterd_nop_cbk - nop callback for server protocol
+ * @frame: call frame
+ * @cookie:
+ * @this:
+ * @op_ret: return value
+ * @op_errno: errno
+ *
+ * not for external reference
+ */
+/*int
+glusterd_nop_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+                  int32_t op_ret, int32_t op_errno)
+{
+        glusterd_state_t *state = NULL;
+
+        state = GLUSTERD_CALL_STATE(frame);
+
+        if (state)
+                free_state (state);
+        STACK_DESTROY (frame->root);
+        return 0;
+}
+*/
+
+
+int
+glusterd_priv (xlator_t *this)
+{
+        return 0;
+}
+
+
+
+int32_t
+mem_acct_init (xlator_t *this)
+{
+        int     ret = -1;
+
+        if (!this)
+                return ret;
+
+        ret = xlator_mem_acct_init (this, gf_gld_mt_end + 1);
+        
+        if (ret != 0) {
+                gf_log (this->name, GF_LOG_ERROR, "Memory accounting init"
+                        " failed");
+                return ret;
+        }
+
+        return ret;
+}
+
+int
+glusterd_rpcsvc_notify (rpcsvc_t *rpc, void *xl, rpcsvc_event_t event,
+                     void *data)
+{
+        xlator_t            *this = NULL;
+        rpc_transport_t     *xprt = NULL;
+
+        if (!xl || !data) {
+                gf_log ("glusterd", GF_LOG_WARNING,
+                        "Calling rpc_notify without initializing");
+                goto out;
+        }
+
+        this = xl;
+        xprt = data;
+
+        switch (event) {
+        case RPCSVC_EVENT_ACCEPT:
+        {
+                /* Have a structure per new connection */
+                /* TODO: Should we create anything here at all ? * /
+                conn = create_server_conn_state (this, xprt);
+                if (!conn)
+                        goto out;
+
+                xprt->protocol_private = conn;
+                */
+                xprt->mydata = this;
+                break;
+        }
+        case RPCSVC_EVENT_DISCONNECT:
+               /* conn = get_server_conn_state (this, xprt);
+                if (conn)
+                        destroy_server_conn_state (conn);
+                */
+                break;
+        default:
+                break;
+        }
+
+out:
+        return 0;
+}
+
+/*
+ * init - called during glusterd initialization
+ *
+ * @this:
+ *
+ */
+int
+init (xlator_t *this)
+{
+        int32_t         ret = -1;
+        rpcsvc_t        *rpc = NULL;
+        glusterd_conf_t *conf = NULL;
+        data_t          *dir_data = NULL;
+        char            dirname [PATH_MAX];
+        struct stat     buf = {0,};
+        char            *port_str = NULL;
+        int             port_num = 0;
+
+
+        dir_data = dict_get (this->options, "working-directory");
+
+        if (!dir_data) {
+                //Use default working dir
+                strncpy (dirname, GLUSTERD_DEFAULT_WORKDIR, PATH_MAX);
+        } else {
+                strncpy (dirname, dir_data->data, PATH_MAX);
+        }
+
+        ret = stat (dirname, &buf);
+        if ((ret != 0) && (ENOENT != errno)) {
+                gf_log (this->name, GF_LOG_ERROR,
+                        "stat fails on %s, exiting. (errno = %d)",
+			dirname, errno);
+                exit (1);
+        }
+
+        if ((!ret) && (!S_ISDIR(buf.st_mode))) {
+                gf_log (this->name, GF_LOG_CRITICAL,
+                        "Provided working area %s is not a directory,"
+                        "exiting", dirname);
+                exit (1);
+        }
+
+
+        if ((-1 == ret) && (ENOENT == errno)) {
+                ret = mkdir (dirname, 0644);
+
+                if (-1 == ret) {
+                        gf_log (this->name, GF_LOG_CRITICAL,
+                                "Unable to create directory %s"
+                                " ,errno = %d", dirname, errno);
+                }
+        }
+
+        gf_log (this->name, GF_LOG_NORMAL, "Using %s as working directory",
+                dirname);
+
+        
+        rpc = rpcsvc_init (this->ctx, this->options);
+        if (rpc == NULL) {
+                gf_log (this->name, GF_LOG_ERROR,
+                        "failed to init rpc");
+                goto out;
+        }
+
+        ret = rpcsvc_register_notify (rpc, glusterd_rpcsvc_notify, this);
+        if (ret) {
+                gf_log (this->name, GF_LOG_ERROR,
+                        "rpcsvc_register_notify returned %d", ret);
+                goto out;
+        }
+
+        glusterd1_mop_prog.options = this->options;
+        port_str = getenv ("GLUSTERD_LOCAL_PORT");
+        if (port_str) {
+                port_num = atoi (port_str);
+                glusterd1_mop_prog.progport = port_num;
+        }
+
+        ret = rpcsvc_program_register (rpc, glusterd1_mop_prog);
+        if (ret) {
+                gf_log (this->name, GF_LOG_ERROR,
+                        "rpcsvc_program_register returned %d", ret);
+                goto out;
+        }
+
+//TODO: Waiting on handshake code
+/*        gluster_handshake_prog.options = this->options;
+        ret = rpcsvc_program_register (conf->rpc, gluster_handshake_prog);
+        if (ret)
+                goto out;
+*/
+        conf = GF_CALLOC (1, sizeof (glusterd_conf_t),
+                          gf_gld_mt_glusterd_conf_t);
+        GF_VALIDATE_OR_GOTO(this->name, conf, out);
+        INIT_LIST_HEAD (&conf->peers);
+        INIT_LIST_HEAD (&conf->volumes);
+        pthread_mutex_init (&conf->mutex, NULL);
+        conf->rpc = rpc;
+        conf->mgmt = &glusterd3_1_mgmt_prog;
+        strncpy (conf->workdir, dirname, PATH_MAX);
+
+        this->private = conf;
+        //this->ctx->top = this;
+
+        ret = glusterd_uuid_init ();
+
+        if (ret < 0) 
+                goto out;
+
+        glusterd_friend_sm_init ();
+        glusterd_op_sm_init ();
+
+        memcpy(conf->uuid, glusterd_uuid, sizeof (uuid_t));
+
+        ret = 0;
+out:
+        return ret;
+}
+
+
+
+/*int
+glusterd_pollin (xlator_t *this, transport_t *trans)
+{
+        char                *hdr = NULL;
+        size_t               hdrlen = 0;
+        int                  ret = -1;
+        struct iobuf        *iobuf = NULL;
+
+
+        ret = transport_receive (trans, &hdr, &hdrlen, &iobuf);
+
+        if (ret == 0)
+                ret = glusterd_interpret (this, trans, hdr,
+                                          hdrlen, iobuf);
+
+        ret = glusterd_friend_sm ();
+
+        glusterd_op_sm ();
+
+        GF_FREE (hdr);
+
+        return ret;
+}
+*/
+
+/*
+ * fini - finish function for server protocol, called before
+ *        unloading server protocol.
+ *
+ * @this:
+ *
+ */
+void
+fini (xlator_t *this)
+{
+        glusterd_conf_t *conf = this->private;
+
+        GF_VALIDATE_OR_GOTO(this->name, conf, out);
+        GF_FREE (conf);
+        this->private = NULL;
+out:
+        return;
+}
+
+/*
+ * server_protocol_notify - notify function for server protocol
+ * @this:
+ * @trans:
+ * @event:
+ *
+ */
+int
+notify (xlator_t *this, int32_t event, void *data, ...)
+{
+        int          ret = 0;
+        //transport_t *trans = data;
+        //peer_info_t *peerinfo = NULL;
+        //peer_info_t *myinfo = NULL;
+
+/*        if (trans != NULL) {
+                peerinfo = &(trans->peerinfo);
+                myinfo = &(trans->myinfo);
+        }
+*/
+        switch (event) {
+        
+                case GF_EVENT_POLLIN:
+          //              ret = glusterd_pollin (this, trans);
+                        break;
+
+        
+                case GF_EVENT_POLLERR:
+                        break;
+
+                case GF_EVENT_TRANSPORT_CLEANUP:
+                        break;
+
+                default:
+                        default_notify (this, event, data);
+                        break;
+        
+        }
+
+        return ret;
+}
+
+
+void
+glusterd_init (int signum)
+{
+        int ret = -1;
+
+        glusterfs_this_set ((xlator_t *)CTX->active);
+
+        ret = glusterd_probe_begin (NULL, "localhost");
+
+        if (!ret) {
+                ret = glusterd_friend_sm ();
+
+                glusterd_op_sm ();
+        }
+
+        gf_log ("glusterd", GF_LOG_WARNING, "ret = %d", ret);
+
+        //return 0;
+}
+
+void
+glusterd_op_init (int signum) 
+{
+        int     ret = -1;
+
+        glusterfs_this_set ((xlator_t *)CTX->active);
+
+        //ret = glusterd_create_volume ("vol1");
+
+/*        if (!ret) {
+                glusterd_friend_sm ();
+                glusterd_op_sm ();
+        }
+*/
+
+        gf_log ("glusterd", GF_LOG_WARNING, "ret = %d", ret);
+}
+
+
+
+//struct xlator_mops mops = {
+//};
+
+struct xlator_fops fops = {
+};
+
+struct xlator_cbks cbks = {
+};
+
+struct xlator_dumpops dumpops = {
+        .priv  = glusterd_priv,
+};
+
+
+struct volume_options options[] = {
+        { .key   = {"working-dir"},
+          .type  = GF_OPTION_TYPE_PATH,
+        },
+
+        { .key   = {NULL} },
+};