summaryrefslogtreecommitdiffstats
path: root/xlators/protocol/lib
diff options
context:
space:
mode:
Diffstat (limited to 'xlators/protocol/lib')
-rw-r--r--xlators/protocol/lib/Makefile.am3
-rw-r--r--xlators/protocol/lib/src/Makefile.am15
-rw-r--r--xlators/protocol/lib/src/authenticate.c250
-rw-r--r--xlators/protocol/lib/src/authenticate.h61
-rw-r--r--xlators/protocol/lib/src/protocol.h1114
-rw-r--r--xlators/protocol/lib/src/transport.c422
-rw-r--r--xlators/protocol/lib/src/transport.h106
7 files changed, 1971 insertions, 0 deletions
diff --git a/xlators/protocol/lib/Makefile.am b/xlators/protocol/lib/Makefile.am
new file mode 100644
index 00000000..d471a3f9
--- /dev/null
+++ b/xlators/protocol/lib/Makefile.am
@@ -0,0 +1,3 @@
+SUBDIRS = src
+
+CLEANFILES =
diff --git a/xlators/protocol/lib/src/Makefile.am b/xlators/protocol/lib/src/Makefile.am
new file mode 100644
index 00000000..d3d1aafe
--- /dev/null
+++ b/xlators/protocol/lib/src/Makefile.am
@@ -0,0 +1,15 @@
+libgfproto_la_CFLAGS = -fPIC -Wall -g -shared -nostartfiles $(GF_CFLAGS) $(GF_DARWIN_LIBGLUSTERFS_CFLAGS)
+
+libgfproto_la_CPPFLAGS = -D_FILE_OFFSET_BITS=64 -D__USE_FILE_OFFSET64 -D_GNU_SOURCE \
+ -D$(GF_HOST_OS) -DLIBDIR=\"$(libdir)/glusterfs/$(PACKAGE_VERSION)/auth\" \
+ -DTRANSPORTDIR=\"$(libdir)/glusterfs/$(PACKAGE_VERSION)/transport\" \
+ -I$(CONTRIBDIR)/rbtree -I$(top_srcdir)/libglusterfs/src/
+
+libgfproto_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la
+
+lib_LTLIBRARIES = libgfproto.la
+
+
+libgfproto_la_SOURCES = transport.c authenticate.c
+
+noinst_HEADERS = transport.h protocol.h authenticate.h
diff --git a/xlators/protocol/lib/src/authenticate.c b/xlators/protocol/lib/src/authenticate.c
new file mode 100644
index 00000000..eb0e2464
--- /dev/null
+++ b/xlators/protocol/lib/src/authenticate.c
@@ -0,0 +1,250 @@
+/*
+ Copyright (c) 2007-2009 Gluster, Inc. <http://www.gluster.com>
+ This file is part of GlusterFS.
+
+ GlusterFS is 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
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <stdio.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include "authenticate.h"
+
+static void
+init (dict_t *this,
+ char *key,
+ data_t *value,
+ void *data)
+{
+ void *handle = NULL;
+ char *auth_file = NULL;
+ auth_handle_t *auth_handle = NULL;
+ auth_fn_t authenticate = NULL;
+ int *error = NULL;
+ int ret = 0;
+
+ /* It gets over written */
+ error = data;
+
+ if (!strncasecmp (key, "ip", strlen ("ip"))) {
+ gf_log ("authenticate", GF_LOG_ERROR,
+ "AUTHENTICATION MODULE \"IP\" HAS BEEN REPLACED "
+ "BY \"ADDR\"");
+ dict_set (this, key, data_from_dynptr (NULL, 0));
+ /* TODO: 1.3.x backword compatibility */
+ // *error = -1;
+ // return;
+ key = "addr";
+ }
+
+ ret = gf_asprintf (&auth_file, "%s/%s.so", LIBDIR, key);
+ if (-1 == ret) {
+ gf_log ("authenticate", GF_LOG_ERROR, "asprintf failed");
+ dict_set (this, key, data_from_dynptr (NULL, 0));
+ *error = -1;
+ return;
+ }
+
+ handle = dlopen (auth_file, RTLD_LAZY);
+ if (!handle) {
+ gf_log ("authenticate", GF_LOG_ERROR, "dlopen(%s): %s\n",
+ auth_file, dlerror ());
+ dict_set (this, key, data_from_dynptr (NULL, 0));
+ GF_FREE (auth_file);
+ *error = -1;
+ return;
+ }
+ GF_FREE (auth_file);
+
+ authenticate = dlsym (handle, "gf_auth");
+ if (!authenticate) {
+ gf_log ("authenticate", GF_LOG_ERROR,
+ "dlsym(gf_auth) on %s\n", dlerror ());
+ dict_set (this, key, data_from_dynptr (NULL, 0));
+ *error = -1;
+ return;
+ }
+
+ auth_handle = GF_CALLOC (1, sizeof (*auth_handle),
+ gf_common_mt_auth_handle_t);
+ if (!auth_handle) {
+ gf_log ("authenticate", GF_LOG_ERROR, "Out of memory");
+ dict_set (this, key, data_from_dynptr (NULL, 0));
+ *error = -1;
+ return;
+ }
+ auth_handle->vol_opt = GF_CALLOC (1, sizeof (volume_opt_list_t),
+ gf_common_mt_volume_opt_list_t);
+ auth_handle->vol_opt->given_opt = dlsym (handle, "options");
+ if (auth_handle->vol_opt->given_opt == NULL) {
+ gf_log ("authenticate", GF_LOG_DEBUG,
+ "volume option validation not specified");
+ }
+
+ auth_handle->authenticate = authenticate;
+ auth_handle->handle = handle;
+
+ dict_set (this, key,
+ data_from_dynptr (auth_handle, sizeof (*auth_handle)));
+}
+
+static void
+fini (dict_t *this,
+ char *key,
+ data_t *value,
+ void *data)
+{
+ auth_handle_t *handle = data_to_ptr (value);
+ if (handle) {
+ dlclose (handle->handle);
+ }
+}
+
+int32_t
+gf_auth_init (xlator_t *xl, dict_t *auth_modules)
+{
+ int ret = 0;
+ auth_handle_t *handle = NULL;
+ data_pair_t *pair = NULL;
+ dict_foreach (auth_modules, init, &ret);
+ if (!ret) {
+ pair = auth_modules->members_list;
+ while (pair) {
+ handle = data_to_ptr (pair->value);
+ if (handle) {
+ list_add_tail (&(handle->vol_opt->list),
+ &(xl->volume_options));
+ if (-1 ==
+ validate_xlator_volume_options (xl,
+ handle->vol_opt->given_opt)) {
+ gf_log ("authenticate", GF_LOG_ERROR,
+ "volume option validation "
+ "failed");
+ ret = -1;
+ }
+ }
+ pair = pair->next;
+ }
+ }
+ if (ret) {
+ gf_log (xl->name, GF_LOG_ERROR, "authentication init failed");
+ dict_foreach (auth_modules, fini, &ret);
+ ret = -1;
+ }
+ return ret;
+}
+
+static dict_t *__input_params;
+static dict_t *__config_params;
+
+void
+map (dict_t *this,
+ char *key,
+ data_t *value,
+ void *data)
+{
+ dict_t *res = data;
+ auth_fn_t authenticate;
+ auth_handle_t *handle = NULL;
+
+ if (value && (handle = data_to_ptr (value)) &&
+ (authenticate = handle->authenticate)) {
+ dict_set (res, key,
+ int_to_data (authenticate (__input_params,
+ __config_params)));
+ } else {
+ dict_set (res, key, int_to_data (AUTH_DONT_CARE));
+ }
+}
+
+void
+reduce (dict_t *this,
+ char *key,
+ data_t *value,
+ void *data)
+{
+ int64_t val = 0;
+ int64_t *res = data;
+ if (!data)
+ return;
+
+ val = data_to_int64 (value);
+ switch (val)
+ {
+ case AUTH_ACCEPT:
+ if (AUTH_DONT_CARE == *res)
+ *res = AUTH_ACCEPT;
+ break;
+
+ case AUTH_REJECT:
+ *res = AUTH_REJECT;
+ break;
+
+ case AUTH_DONT_CARE:
+ break;
+ }
+}
+
+
+auth_result_t
+gf_authenticate (dict_t *input_params,
+ dict_t *config_params,
+ dict_t *auth_modules)
+{
+ dict_t *results = NULL;
+ int64_t result = AUTH_DONT_CARE;
+
+ results = get_new_dict ();
+ __input_params = input_params;
+ __config_params = config_params;
+
+ dict_foreach (auth_modules, map, results);
+
+ dict_foreach (results, reduce, &result);
+ if (AUTH_DONT_CARE == result) {
+ data_t *peerinfo_data = dict_get (input_params, "peer-info");
+ char *name = NULL;
+
+ if (peerinfo_data) {
+ peer_info_t *peerinfo = data_to_ptr (peerinfo_data);
+ name = peerinfo->identifier;
+ }
+
+ gf_log ("auth", GF_LOG_ERROR,
+ "no authentication module is interested in "
+ "accepting remote-client %s", name);
+ result = AUTH_REJECT;
+ }
+
+ dict_destroy (results);
+ return result;
+}
+
+void
+gf_auth_fini (dict_t *auth_modules)
+{
+ int32_t dummy;
+
+ dict_foreach (auth_modules, fini, &dummy);
+}
diff --git a/xlators/protocol/lib/src/authenticate.h b/xlators/protocol/lib/src/authenticate.h
new file mode 100644
index 00000000..8931f62e
--- /dev/null
+++ b/xlators/protocol/lib/src/authenticate.h
@@ -0,0 +1,61 @@
+/*
+ Copyright (c) 2007-2009 Gluster, Inc. <http://www.gluster.com>
+ This file is part of GlusterFS.
+
+ GlusterFS is 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 _AUTHENTICATE_H
+#define _AUTHENTICATE_H
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <stdio.h>
+#include <fnmatch.h>
+#include "dict.h"
+#include "compat.h"
+#include "list.h"
+#include "transport.h"
+#include "xlator.h"
+
+typedef enum {
+ AUTH_ACCEPT,
+ AUTH_REJECT,
+ AUTH_DONT_CARE
+} auth_result_t;
+
+typedef auth_result_t (*auth_fn_t) (dict_t *input_params,
+ dict_t *config_params);
+
+typedef struct {
+ void *handle;
+ auth_fn_t authenticate;
+ volume_opt_list_t *vol_opt;
+} auth_handle_t;
+
+auth_result_t gf_authenticate (dict_t *input_params,
+ dict_t *config_params,
+ dict_t *auth_modules);
+int32_t gf_auth_init (xlator_t *xl, dict_t *auth_modules);
+void gf_auth_fini (dict_t *auth_modules);
+
+#endif /* _AUTHENTICATE_H */
diff --git a/xlators/protocol/lib/src/protocol.h b/xlators/protocol/lib/src/protocol.h
new file mode 100644
index 00000000..6fd291bb
--- /dev/null
+++ b/xlators/protocol/lib/src/protocol.h
@@ -0,0 +1,1114 @@
+/*
+ Copyright (c) 2006-2009 Gluster, Inc. <http://www.gluster.com>
+ This file is part of GlusterFS.
+
+ GlusterFS is 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 _PROTOCOL_H
+#define _PROTOCOL_H
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include <inttypes.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/statvfs.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include "byte-order.h"
+#include "iatt.h"
+
+/* Any changes in the protocol structure or adding new '[f,m]ops' needs to
+ * bump the protocol version by "0.1"
+ */
+
+#define GF_PROTOCOL_VERSION "3.0"
+
+struct gf_stat {
+ uint64_t ino;
+ uint64_t size;
+ uint64_t blocks;
+ uint64_t dev;
+ uint32_t rdev;
+ uint32_t mode;
+ uint32_t nlink;
+ uint32_t uid;
+ uint32_t gid;
+ uint32_t blksize;
+ uint32_t atime;
+ uint32_t atime_nsec;
+ uint32_t mtime ;
+ uint32_t mtime_nsec;
+ uint32_t ctime;
+ uint32_t ctime_nsec;
+} __attribute__((packed));
+
+
+static inline void
+gf_stat_to_stat (struct gf_stat *gf_stat, struct stat *stat)
+{
+ stat->st_dev = ntoh64 (gf_stat->dev);
+ stat->st_ino = ntoh64 (gf_stat->ino);
+ stat->st_mode = ntoh32 (gf_stat->mode);
+ stat->st_nlink = ntoh32 (gf_stat->nlink);
+ stat->st_uid = ntoh32 (gf_stat->uid);
+ stat->st_gid = ntoh32 (gf_stat->gid);
+ stat->st_rdev = ntoh32 (gf_stat->rdev);
+ stat->st_size = ntoh64 (gf_stat->size);
+ stat->st_blksize = ntoh32 (gf_stat->blksize);
+ stat->st_blocks = ntoh64 (gf_stat->blocks);
+ stat->st_atime = ntoh32 (gf_stat->atime);
+ stat->st_mtime = ntoh32 (gf_stat->mtime);
+ stat->st_ctime = ntoh32 (gf_stat->ctime);
+ ST_ATIM_NSEC_SET(stat, ntoh32 (gf_stat->atime_nsec));
+ ST_MTIM_NSEC_SET(stat, ntoh32 (gf_stat->mtime_nsec));
+ ST_CTIM_NSEC_SET(stat, ntoh32 (gf_stat->ctime_nsec));
+}
+
+
+static inline void
+gf_stat_from_stat (struct gf_stat *gf_stat, struct stat *stat)
+{
+ gf_stat->dev = hton64 (stat->st_dev);
+ gf_stat->ino = hton64 (stat->st_ino);
+ gf_stat->mode = hton32 (stat->st_mode);
+ gf_stat->nlink = hton32 (stat->st_nlink);
+ gf_stat->uid = hton32 (stat->st_uid);
+ gf_stat->gid = hton32 (stat->st_gid);
+ gf_stat->rdev = hton32 (stat->st_rdev);
+ gf_stat->size = hton64 (stat->st_size);
+ gf_stat->blksize = hton32 (stat->st_blksize);
+ gf_stat->blocks = hton64 (stat->st_blocks);
+ gf_stat->atime = hton32 (stat->st_atime);
+ gf_stat->mtime = hton32 (stat->st_mtime);
+ gf_stat->ctime = hton32 (stat->st_ctime);
+ gf_stat->atime_nsec = hton32 (ST_ATIM_NSEC(stat));
+ gf_stat->mtime_nsec = hton32 (ST_MTIM_NSEC(stat));
+ gf_stat->ctime_nsec = hton32 (ST_CTIM_NSEC(stat));
+}
+
+
+static inline void
+gf_stat_to_iatt (struct gf_stat *gf_stat, struct iatt *iatt)
+{
+ iatt->ia_ino = ntoh64 (gf_stat->ino);
+ iatt->ia_dev = ntoh64 (gf_stat->dev);
+ iatt->ia_type = ia_type_from_st_mode (ntoh32 (gf_stat->mode));
+ iatt->ia_prot = ia_prot_from_st_mode (ntoh32 (gf_stat->mode));
+ iatt->ia_nlink = ntoh32 (gf_stat->nlink);
+ iatt->ia_uid = ntoh32 (gf_stat->uid);
+ iatt->ia_gid = ntoh32 (gf_stat->gid);
+ iatt->ia_rdev = ntoh64 (gf_stat->rdev);
+ iatt->ia_size = ntoh64 (gf_stat->size);
+ iatt->ia_blksize = ntoh32 (gf_stat->blksize);
+ iatt->ia_blocks = ntoh64 (gf_stat->blocks);
+ iatt->ia_atime = ntoh32 (gf_stat->atime);
+ iatt->ia_atime_nsec = ntoh32 (gf_stat->atime_nsec);
+ iatt->ia_mtime = ntoh32 (gf_stat->mtime);
+ iatt->ia_mtime_nsec = ntoh32 (gf_stat->mtime_nsec);
+ iatt->ia_ctime = ntoh32 (gf_stat->ctime);
+ iatt->ia_ctime_nsec = ntoh32 (gf_stat->ctime_nsec);
+
+ iatt->ia_gen = ntoh64 (gf_stat->dev);
+}
+
+
+static inline void
+gf_stat_from_iatt (struct gf_stat *gf_stat, struct iatt *iatt)
+{
+ gf_stat->ino = hton64 (iatt->ia_ino);
+ gf_stat->dev = hton64 (iatt->ia_dev);
+ gf_stat->mode = hton32 (st_mode_from_ia (iatt->ia_prot,
+ iatt->ia_type));
+ gf_stat->nlink = hton32 (iatt->ia_nlink);
+ gf_stat->uid = hton32 (iatt->ia_uid);
+ gf_stat->gid = hton32 (iatt->ia_gid);
+ gf_stat->rdev = hton32 (iatt->ia_rdev);
+ gf_stat->size = hton64 (iatt->ia_size);
+ gf_stat->blksize = hton32 (iatt->ia_blksize);
+ gf_stat->blocks = hton64 (iatt->ia_blocks);
+ gf_stat->atime = hton32 (iatt->ia_atime);
+ gf_stat->atime_nsec = hton32 (iatt->ia_atime_nsec);
+ gf_stat->mtime = hton32 (iatt->ia_mtime);
+ gf_stat->mtime_nsec = hton32 (iatt->ia_mtime_nsec);
+ gf_stat->ctime = hton32 (iatt->ia_ctime);
+ gf_stat->ctime_nsec = hton32 (iatt->ia_ctime_nsec);
+
+ gf_stat->dev = hton64 (iatt->ia_gen);
+
+}
+
+
+struct gf_statfs {
+ uint64_t bsize;
+ uint64_t frsize;
+ uint64_t blocks;
+ uint64_t bfree;
+ uint64_t bavail;
+ uint64_t files;
+ uint64_t ffree;
+ uint64_t favail;
+ uint64_t fsid;
+ uint64_t flag;
+ uint64_t namemax;
+} __attribute__((packed));
+
+
+static inline void
+gf_statfs_to_statfs (struct gf_statfs *gf_stat, struct statvfs *stat)
+{
+ stat->f_bsize = ntoh64 (gf_stat->bsize);
+ stat->f_frsize = ntoh64 (gf_stat->frsize);
+ stat->f_blocks = ntoh64 (gf_stat->blocks);
+ stat->f_bfree = ntoh64 (gf_stat->bfree);
+ stat->f_bavail = ntoh64 (gf_stat->bavail);
+ stat->f_files = ntoh64 (gf_stat->files);
+ stat->f_ffree = ntoh64 (gf_stat->ffree);
+ stat->f_favail = ntoh64 (gf_stat->favail);
+ stat->f_fsid = ntoh64 (gf_stat->fsid);
+ stat->f_flag = ntoh64 (gf_stat->flag);
+ stat->f_namemax = ntoh64 (gf_stat->namemax);
+}
+
+
+static inline void
+gf_statfs_from_statfs (struct gf_statfs *gf_stat, struct statvfs *stat)
+{
+ gf_stat->bsize = hton64 (stat->f_bsize);
+ gf_stat->frsize = hton64 (stat->f_frsize);
+ gf_stat->blocks = hton64 (stat->f_blocks);
+ gf_stat->bfree = hton64 (stat->f_bfree);
+ gf_stat->bavail = hton64 (stat->f_bavail);
+ gf_stat->files = hton64 (stat->f_files);
+ gf_stat->ffree = hton64 (stat->f_ffree);
+ gf_stat->favail = hton64 (stat->f_favail);
+ gf_stat->fsid = hton64 (stat->f_fsid);
+ gf_stat->flag = hton64 (stat->f_flag);
+ gf_stat->namemax = hton64 (stat->f_namemax);
+}
+
+
+struct gf_flock {
+ uint16_t type;
+ uint16_t whence;
+ uint64_t start;
+ uint64_t len;
+ uint32_t pid;
+} __attribute__((packed));
+
+
+static inline void
+gf_flock_to_flock (struct gf_flock *gf_flock, struct flock *flock)
+{
+ flock->l_type = ntoh16 (gf_flock->type);
+ flock->l_whence = ntoh16 (gf_flock->whence);
+ flock->l_start = ntoh64 (gf_flock->start);
+ flock->l_len = ntoh64 (gf_flock->len);
+ flock->l_pid = ntoh32 (gf_flock->pid);
+}
+
+
+static inline void
+gf_flock_from_flock (struct gf_flock *gf_flock, struct flock *flock)
+{
+ gf_flock->type = hton16 (flock->l_type);
+ gf_flock->whence = hton16 (flock->l_whence);
+ gf_flock->start = hton64 (flock->l_start);
+ gf_flock->len = hton64 (flock->l_len);
+ gf_flock->pid = hton32 (flock->l_pid);
+}
+
+
+struct gf_timespec {
+ uint32_t tv_sec;
+ uint32_t tv_nsec;
+} __attribute__((packed));
+
+
+static inline void
+gf_timespec_to_timespec (struct gf_timespec *gf_ts, struct timespec *ts)
+{
+
+ ts[0].tv_sec = ntoh32 (gf_ts[0].tv_sec);
+ ts[0].tv_nsec = ntoh32 (gf_ts[0].tv_nsec);
+ ts[1].tv_sec = ntoh32 (gf_ts[1].tv_sec);
+ ts[1].tv_nsec = ntoh32 (gf_ts[1].tv_nsec);
+}
+
+
+static inline void
+gf_timespec_from_timespec (struct gf_timespec *gf_ts, struct timespec *ts)
+{
+ gf_ts[0].tv_sec = hton32 (ts[0].tv_sec);
+ gf_ts[0].tv_nsec = hton32 (ts[0].tv_nsec);
+ gf_ts[1].tv_sec = hton32 (ts[1].tv_sec);
+ gf_ts[1].tv_nsec = hton32 (ts[1].tv_nsec);
+}
+
+
+#define GF_O_ACCMODE 003
+#define GF_O_RDONLY 00
+#define GF_O_WRONLY 01
+#define GF_O_RDWR 02
+#define GF_O_CREAT 0100
+#define GF_O_EXCL 0200
+#define GF_O_NOCTTY 0400
+#define GF_O_TRUNC 01000
+#define GF_O_APPEND 02000
+#define GF_O_NONBLOCK 04000
+#define GF_O_SYNC 010000
+#define GF_O_ASYNC 020000
+
+#define GF_O_DIRECT 040000
+#define GF_O_DIRECTORY 0200000
+#define GF_O_NOFOLLOW 0400000
+#define GF_O_NOATIME 01000000
+#define GF_O_CLOEXEC 02000000
+
+#define GF_O_LARGEFILE 0100000
+
+#define XLATE_BIT(from, to, bit) do { \
+ if (from & bit) \
+ to = to | GF_##bit; \
+ } while (0)
+
+#define UNXLATE_BIT(from, to, bit) do { \
+ if (from & GF_##bit) \
+ to = to | bit; \
+ } while (0)
+
+#define XLATE_ACCESSMODE(from, to) do { \
+ switch (from & O_ACCMODE) { \
+ case O_RDONLY: to |= GF_O_RDONLY; \
+ break; \
+ case O_WRONLY: to |= GF_O_WRONLY; \
+ break; \
+ case O_RDWR: to |= GF_O_RDWR; \
+ break; \
+ } \
+ } while (0)
+
+#define UNXLATE_ACCESSMODE(from, to) do { \
+ switch (from & GF_O_ACCMODE) { \
+ case GF_O_RDONLY: to |= O_RDONLY; \
+ break; \
+ case GF_O_WRONLY: to |= O_WRONLY; \
+ break; \
+ case GF_O_RDWR: to |= O_RDWR; \
+ break; \
+ } \
+ } while (0)
+
+static inline uint32_t
+gf_flags_from_flags (uint32_t flags)
+{
+ uint32_t gf_flags = 0;
+
+ XLATE_ACCESSMODE (flags, gf_flags);
+
+ XLATE_BIT (flags, gf_flags, O_CREAT);
+ XLATE_BIT (flags, gf_flags, O_EXCL);
+ XLATE_BIT (flags, gf_flags, O_NOCTTY);
+ XLATE_BIT (flags, gf_flags, O_TRUNC);
+ XLATE_BIT (flags, gf_flags, O_APPEND);
+ XLATE_BIT (flags, gf_flags, O_NONBLOCK);
+ XLATE_BIT (flags, gf_flags, O_SYNC);
+ XLATE_BIT (flags, gf_flags, O_ASYNC);
+
+ XLATE_BIT (flags, gf_flags, O_DIRECT);
+ XLATE_BIT (flags, gf_flags, O_DIRECTORY);
+ XLATE_BIT (flags, gf_flags, O_NOFOLLOW);
+#ifdef O_NOATIME
+ XLATE_BIT (flags, gf_flags, O_NOATIME);
+#endif
+#ifdef O_CLOEXEC
+ XLATE_BIT (flags, gf_flags, O_CLOEXEC);
+#endif
+ XLATE_BIT (flags, gf_flags, O_LARGEFILE);
+
+ return gf_flags;
+}
+
+static inline uint32_t
+gf_flags_to_flags (uint32_t gf_flags)
+{
+ uint32_t flags = 0;
+
+ UNXLATE_ACCESSMODE (gf_flags, flags);
+
+ UNXLATE_BIT (gf_flags, flags, O_CREAT);
+ UNXLATE_BIT (gf_flags, flags, O_EXCL);
+ UNXLATE_BIT (gf_flags, flags, O_NOCTTY);
+ UNXLATE_BIT (gf_flags, flags, O_TRUNC);
+ UNXLATE_BIT (gf_flags, flags, O_APPEND);
+ UNXLATE_BIT (gf_flags, flags, O_NONBLOCK);
+ UNXLATE_BIT (gf_flags, flags, O_SYNC);
+ UNXLATE_BIT (gf_flags, flags, O_ASYNC);
+
+ UNXLATE_BIT (gf_flags, flags, O_DIRECT);
+ UNXLATE_BIT (gf_flags, flags, O_DIRECTORY);
+ UNXLATE_BIT (gf_flags, flags, O_NOFOLLOW);
+#ifdef O_NOATIME
+ UNXLATE_BIT (gf_flags, flags, O_NOATIME);
+#endif
+#ifdef O_CLOEXEC
+ UNXLATE_BIT (gf_flags, flags, O_CLOEXEC);
+#endif
+ UNXLATE_BIT (gf_flags, flags, O_LARGEFILE);
+
+ return flags;
+}
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ char path[0]; /* NULL terminated */
+} __attribute__((packed)) gf_fop_stat_req_t;;
+typedef struct {
+ struct gf_stat stat;
+} __attribute__((packed)) gf_fop_stat_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ uint32_t size;
+ char path[0]; /* NULL terminated */
+} __attribute__((packed)) gf_fop_readlink_req_t;
+typedef struct {
+ struct gf_stat buf;
+ char path[0]; /* NULL terminated */
+} __attribute__((packed)) gf_fop_readlink_rsp_t;
+
+
+typedef struct {
+ uint64_t par;
+ uint64_t gen;
+ uint64_t dev;
+ uint32_t mode;
+ char path[0]; /* NULL terminated */
+ char bname[0]; /* NULL terminated */
+} __attribute__((packed)) gf_fop_mknod_req_t;
+typedef struct {
+ struct gf_stat stat;
+ struct gf_stat preparent;
+ struct gf_stat postparent;
+} __attribute__((packed)) gf_fop_mknod_rsp_t;
+
+
+typedef struct {
+ uint64_t par;
+ uint64_t gen;
+ uint32_t mode;
+ char path[0]; /* NULL terminated */
+ char bname[0]; /* NULL terminated */
+} __attribute__((packed)) gf_fop_mkdir_req_t;
+typedef struct {
+ struct gf_stat stat;
+ struct gf_stat preparent;
+ struct gf_stat postparent;
+} __attribute__((packed)) gf_fop_mkdir_rsp_t;
+
+
+typedef struct {
+ uint64_t par;
+ uint64_t gen;
+ char path[0]; /* NULL terminated */
+ char bname[0]; /* NULL terminated */
+} __attribute__((packed)) gf_fop_unlink_req_t;
+typedef struct {
+ struct gf_stat preparent;
+ struct gf_stat postparent;
+} __attribute__((packed)) gf_fop_unlink_rsp_t;
+
+
+typedef struct {
+ uint64_t par;
+ uint64_t gen;
+ char path[0];
+ char bname[0]; /* NULL terminated */
+} __attribute__((packed)) gf_fop_rmdir_req_t;
+typedef struct {
+ struct gf_stat preparent;
+ struct gf_stat postparent;
+} __attribute__((packed)) gf_fop_rmdir_rsp_t;
+
+
+typedef struct {
+ uint64_t par;
+ uint64_t gen;
+ char path[0];
+ char bname[0];
+ char linkname[0];
+} __attribute__((packed)) gf_fop_symlink_req_t;
+typedef struct {
+ struct gf_stat stat;
+ struct gf_stat preparent;
+ struct gf_stat postparent;
+}__attribute__((packed)) gf_fop_symlink_rsp_t;
+
+
+typedef struct {
+ uint64_t oldpar;
+ uint64_t oldgen;
+ uint64_t newpar;
+ uint64_t newgen;
+ char oldpath[0];
+ char oldbname[0]; /* NULL terminated */
+ char newpath[0];
+ char newbname[0]; /* NULL terminated */
+} __attribute__((packed)) gf_fop_rename_req_t;
+typedef struct {
+ struct gf_stat stat;
+ struct gf_stat preoldparent;
+ struct gf_stat postoldparent;
+ struct gf_stat prenewparent;
+ struct gf_stat postnewparent;
+} __attribute__((packed)) gf_fop_rename_rsp_t;
+
+
+typedef struct {
+ uint64_t oldino;
+ uint64_t oldgen;
+ uint64_t newpar;
+ uint64_t newgen;
+ char oldpath[0];
+ char newpath[0];
+ char newbname[0];
+}__attribute__((packed)) gf_fop_link_req_t;
+typedef struct {
+ struct gf_stat stat;
+ struct gf_stat preparent;
+ struct gf_stat postparent;
+} __attribute__((packed)) gf_fop_link_rsp_t;
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ uint64_t offset;
+ char path[0];
+} __attribute__((packed)) gf_fop_truncate_req_t;
+typedef struct {
+ struct gf_stat prestat;
+ struct gf_stat poststat;
+} __attribute__((packed)) gf_fop_truncate_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ uint32_t flags;
+ uint32_t wbflags;
+ char path[0];
+} __attribute__((packed)) gf_fop_open_req_t;
+typedef struct {
+ int64_t fd;
+} __attribute__((packed)) gf_fop_open_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint64_t offset;
+ uint32_t size;
+} __attribute__((packed)) gf_fop_read_req_t;
+typedef struct {
+ struct gf_stat stat;
+ char buf[0];
+} __attribute__((packed)) gf_fop_read_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint64_t offset;
+ uint32_t size;
+} __attribute__((packed)) gf_fop_write_req_t;
+typedef struct {
+ struct gf_stat prestat;
+ struct gf_stat poststat;
+} __attribute__((packed)) gf_fop_write_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ char path[0];
+} __attribute__((packed)) gf_fop_statfs_req_t;
+typedef struct {
+ struct gf_statfs statfs;
+} __attribute__((packed)) gf_fop_statfs_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+} __attribute__((packed)) gf_fop_flush_req_t;
+typedef struct { } __attribute__((packed)) gf_fop_flush_rsp_t;
+
+
+typedef struct fsync_req {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint32_t data;
+} __attribute__((packed)) gf_fop_fsync_req_t;
+typedef struct {
+ struct gf_stat prestat;
+ struct gf_stat poststat;
+} __attribute__((packed)) gf_fop_fsync_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ uint32_t flags;
+ uint32_t dict_len;
+ char dict[0];
+ char path[0];
+} __attribute__((packed)) gf_fop_setxattr_req_t;
+typedef struct { } __attribute__((packed)) gf_fop_setxattr_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint32_t flags;
+ uint32_t dict_len;
+ char dict[0];
+} __attribute__((packed)) gf_fop_fsetxattr_req_t;
+typedef struct { } __attribute__((packed)) gf_fop_fsetxattr_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ uint32_t flags;
+ uint32_t dict_len;
+ char dict[0];
+ char path[0];
+} __attribute__((packed)) gf_fop_xattrop_req_t;
+
+typedef struct {
+ uint32_t dict_len;
+ char dict[0];
+} __attribute__((packed)) gf_fop_xattrop_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint32_t flags;
+ uint32_t dict_len;
+ char dict[0];
+} __attribute__((packed)) gf_fop_fxattrop_req_t;
+
+typedef struct {
+ uint32_t dict_len;
+ char dict[0];
+} __attribute__((packed)) gf_fop_fxattrop_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ uint32_t namelen;
+ char path[0];
+ char name[0];
+} __attribute__((packed)) gf_fop_getxattr_req_t;
+typedef struct {
+ uint32_t dict_len;
+ char dict[0];
+} __attribute__((packed)) gf_fop_getxattr_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint32_t namelen;
+ char name[0];
+} __attribute__((packed)) gf_fop_fgetxattr_req_t;
+typedef struct {
+ uint32_t dict_len;
+ char dict[0];
+} __attribute__((packed)) gf_fop_fgetxattr_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ char path[0];
+ char name[0];
+} __attribute__((packed)) gf_fop_removexattr_req_t;
+typedef struct { } __attribute__((packed)) gf_fop_removexattr_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ char path[0];
+} __attribute__((packed)) gf_fop_opendir_req_t;
+typedef struct {
+ int64_t fd;
+} __attribute__((packed)) gf_fop_opendir_rsp_t;
+
+
+typedef struct fsyncdir_req {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ int32_t data;
+} __attribute__((packed)) gf_fop_fsyncdir_req_t;
+typedef struct {
+} __attribute__((packed)) gf_fop_fsyncdir_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint64_t offset;
+ uint32_t size;
+} __attribute__((packed)) gf_fop_readdir_req_t;
+typedef struct {
+ uint32_t size;
+ char buf[0];
+} __attribute__((packed)) gf_fop_readdir_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint64_t offset;
+ uint32_t size;
+} __attribute__((packed)) gf_fop_readdirp_req_t;
+typedef struct {
+ uint32_t size;
+ char buf[0];
+} __attribute__((packed)) gf_fop_readdirp_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ uint32_t mask;
+ char path[0];
+} __attribute__((packed)) gf_fop_access_req_t;
+typedef struct {
+} __attribute__((packed)) gf_fop_access_rsp_t;
+
+
+typedef struct {
+ uint64_t par;
+ uint64_t gen;
+ uint32_t flags;
+ uint32_t mode;
+ char path[0];
+ char bname[0];
+} __attribute__((packed)) gf_fop_create_req_t;
+typedef struct {
+ struct gf_stat stat;
+ uint64_t fd;
+ struct gf_stat preparent;
+ struct gf_stat postparent;
+} __attribute__((packed)) gf_fop_create_rsp_t;
+
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint64_t offset;
+} __attribute__((packed)) gf_fop_ftruncate_req_t;
+typedef struct {
+ struct gf_stat prestat;
+ struct gf_stat poststat;
+} __attribute__((packed)) gf_fop_ftruncate_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+} __attribute__((packed)) gf_fop_fstat_req_t;
+typedef struct {
+ struct gf_stat stat;
+} __attribute__((packed)) gf_fop_fstat_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint32_t cmd;
+ uint32_t type;
+ struct gf_flock flock;
+} __attribute__((packed)) gf_fop_lk_req_t;
+typedef struct {
+ struct gf_flock flock;
+} __attribute__((packed)) gf_fop_lk_rsp_t;
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ uint32_t cmd;
+ uint32_t type;
+ struct gf_flock flock;
+ char path[0];
+ char volume[0];
+} __attribute__((packed)) gf_fop_inodelk_req_t;
+typedef struct {
+} __attribute__((packed)) gf_fop_inodelk_rsp_t;
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint32_t cmd;
+ uint32_t type;
+ struct gf_flock flock;
+ char volume[0];
+} __attribute__((packed)) gf_fop_finodelk_req_t;
+typedef struct {
+} __attribute__((packed)) gf_fop_finodelk_rsp_t;
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ uint32_t cmd;
+ uint32_t type;
+ uint64_t namelen;
+ char path[0];
+ char name[0];
+ char volume[0];
+} __attribute__((packed)) gf_fop_entrylk_req_t;
+typedef struct {
+} __attribute__((packed)) gf_fop_entrylk_rsp_t;
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+ uint32_t cmd;
+ uint32_t type;
+ uint64_t namelen;
+ char name[0];
+ char volume[0];
+} __attribute__((packed)) gf_fop_fentrylk_req_t;
+typedef struct {
+} __attribute__((packed)) gf_fop_fentrylk_rsp_t;
+
+typedef struct {
+ uint64_t ino; /* NOTE: used only in case of 'root' lookup */
+ uint64_t par;
+ uint64_t gen;
+ uint32_t flags;
+ uint32_t dictlen;
+ char path[0];
+ char bname[0];
+ char dict[0];
+} __attribute__((packed)) gf_fop_lookup_req_t;
+typedef struct {
+ struct gf_stat stat;
+ struct gf_stat postparent;
+ uint32_t dict_len;
+ char dict[0];
+} __attribute__((packed)) gf_fop_lookup_rsp_t;
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ uint32_t flag;
+ char path[0];
+} __attribute__((packed)) gf_fop_checksum_req_t;
+typedef struct {
+ unsigned char fchecksum[0];
+ unsigned char dchecksum[0];
+} __attribute__((packed)) gf_fop_checksum_rsp_t;
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ struct gf_stat stbuf;
+ int32_t valid;
+ char path[0];
+} __attribute__((packed)) gf_fop_setattr_req_t;
+typedef struct {
+ struct gf_stat statpre;
+ struct gf_stat statpost;
+} __attribute__((packed)) gf_fop_setattr_rsp_t;
+
+typedef struct {
+ int64_t fd;
+ struct gf_stat stbuf;
+ int32_t valid;
+} __attribute__((packed)) gf_fop_fsetattr_req_t;
+typedef struct {
+ struct gf_stat statpre;
+ struct gf_stat statpost;
+} __attribute__((packed)) gf_fop_fsetattr_rsp_t;
+
+typedef struct {
+ int64_t fd;
+ uint64_t offset;
+ uint32_t len;
+} __attribute__((packed)) gf_fop_rchecksum_req_t;
+typedef struct {
+ uint32_t weak_checksum;
+ unsigned char strong_checksum[0];
+} __attribute__((packed)) gf_fop_rchecksum_rsp_t;
+
+typedef struct {
+ uint32_t flags;
+ uint32_t keylen;
+ char key[0];
+} __attribute__((packed)) gf_mop_getspec_req_t;
+typedef struct {
+ char spec[0];
+} __attribute__((packed)) gf_mop_getspec_rsp_t;
+
+
+typedef struct {
+ uint32_t msglen;
+ char msg[0];
+} __attribute__((packed)) gf_mop_log_req_t;
+typedef struct {
+} __attribute__((packed)) gf_mop_log_rsp_t;
+
+
+typedef struct {
+ uint32_t dict_len;
+ char buf[0];
+} __attribute__((packed)) gf_mop_setvolume_req_t;
+typedef struct {
+ uint32_t dict_len;
+ char buf[0];
+} __attribute__((packed)) gf_mop_setvolume_rsp_t;
+
+
+typedef struct {
+} __attribute__((packed)) gf_mop_ping_req_t;
+typedef struct {
+} __attribute__((packed)) gf_mop_ping_rsp_t;
+
+typedef struct {
+ uint32_t flags;
+ char buf[0];
+} __attribute__((packed)) gf_mop_notify_req_t;
+typedef struct {
+ uint32_t flags;
+ char buf[0];
+} __attribute__((packed)) gf_mop_notify_rsp_t;
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+} __attribute__((packed)) gf_cbk_releasedir_req_t;
+typedef struct {
+} __attribute__((packed)) gf_cbk_releasedir_rsp_t;
+
+
+typedef struct {
+ uint64_t ino;
+ uint64_t gen;
+ int64_t fd;
+} __attribute__((packed)) gf_cbk_release_req_t;
+typedef struct {
+} __attribute__((packed)) gf_cbk_release_rsp_t;
+
+
+typedef struct {
+ uint32_t count;
+ uint64_t ino_array[0];
+} __attribute__((packed)) gf_cbk_forget_req_t;
+typedef struct { } __attribute__((packed)) gf_cbk_forget_rsp_t;
+
+
+typedef struct {
+ uint32_t pid;
+ uint32_t uid;
+ uint32_t gid;
+
+ /* Number of groups being sent through the array above. */
+ uint32_t ngrps;
+
+ /* Array of groups to which the uid belongs apart from the primary group
+ * in gid.
+ */
+ uint32_t groups[GF_REQUEST_MAXGROUPS];
+
+ uint64_t lk_owner;
+} __attribute__ ((packed)) gf_hdr_req_t;
+
+
+typedef struct {
+ uint32_t op_ret;
+ uint32_t op_errno;
+} __attribute__ ((packed)) gf_hdr_rsp_t;
+
+
+typedef struct {
+ uint64_t callid;
+ uint32_t type;
+ uint32_t op;
+ uint32_t size;
+ union {
+ gf_hdr_req_t req;
+ gf_hdr_rsp_t rsp;
+ } __attribute__ ((packed));
+} __attribute__ ((packed)) gf_hdr_common_t;
+
+
+static inline gf_hdr_common_t *
+__gf_hdr_new (int size)
+{
+ gf_hdr_common_t *hdr = NULL;
+
+ /* TODO: use mem-pool */
+ hdr = GF_CALLOC (sizeof (gf_hdr_common_t) + size, 1,
+ gf_common_mt_gf_hdr_common_t);
+
+ if (!hdr) {
+ return NULL;
+ }
+
+ hdr->size = hton32 (size);
+
+ return hdr;
+}
+
+
+#define gf_hdr_len(type, x) (sizeof (gf_hdr_common_t) + sizeof (*type) + x)
+#define gf_hdr_new(type, x) __gf_hdr_new (sizeof (*type) + x)
+
+
+static inline void *
+gf_param (gf_hdr_common_t *hdr)
+{
+ return ((void *)hdr) + sizeof (*hdr);
+}
+
+
+struct gf_dirent_nb {
+ uint64_t d_ino;
+ uint64_t d_off;
+ uint32_t d_len;
+ uint32_t d_type;
+ struct gf_stat d_stat;
+ char d_name[0];
+} __attribute__((packed));
+
+
+static inline int
+gf_dirent_nb_size (gf_dirent_t *entries)
+{
+ return (sizeof (struct gf_dirent_nb) + strlen (entries->d_name) + 1);
+}
+
+static inline int
+gf_dirent_serialize (gf_dirent_t *entries, char *buf, size_t buf_size)
+{
+ struct gf_dirent_nb *entry_nb = NULL;
+ gf_dirent_t *entry = NULL;
+ int size = 0;
+ int entry_size = 0;
+
+
+ list_for_each_entry (entry, &entries->list, list) {
+ entry_size = gf_dirent_nb_size (entry);
+
+ if (buf && (size + entry_size <= buf_size)) {
+ entry_nb = (void *) (buf + size);
+
+ entry_nb->d_ino = hton64 (entry->d_ino);
+ entry_nb->d_off = hton64 (entry->d_off);
+ entry_nb->d_len = hton32 (entry->d_len);
+ entry_nb->d_type = hton32 (entry->d_type);
+
+ gf_stat_from_iatt (&entry_nb->d_stat, &entry->d_stat);
+
+ strcpy (entry_nb->d_name, entry->d_name);
+ }
+ size += entry_size;
+ }
+
+ return size;
+}
+
+
+static inline int
+gf_dirent_unserialize (gf_dirent_t *entries, const char *buf, size_t buf_size)
+{
+ struct gf_dirent_nb *entry_nb = NULL;
+ int remaining_size = 0;
+ int least_dirent_size = 0;
+ int count = 0;
+ gf_dirent_t *entry = NULL;
+ int entry_strlen = 0;
+ int entry_len = 0;
+
+
+ remaining_size = buf_size;
+ least_dirent_size = (sizeof (struct gf_dirent_nb) + 2);
+
+ while (remaining_size >= least_dirent_size) {
+ entry_nb = (void *)(buf + (buf_size - remaining_size));
+
+ entry_strlen = strnlen (entry_nb->d_name, remaining_size);
+ if (entry_strlen == remaining_size) {
+ break;
+ }
+
+ entry_len = sizeof (gf_dirent_t) + entry_strlen + 1;
+ entry = GF_CALLOC (1, entry_len, gf_common_mt_gf_dirent_t);
+ if (!entry) {
+ break;
+ }
+
+ entry->d_ino = ntoh64 (entry_nb->d_ino);
+ entry->d_off = ntoh64 (entry_nb->d_off);
+ entry->d_len = ntoh32 (entry_nb->d_len);
+ entry->d_type = ntoh32 (entry_nb->d_type);
+
+ gf_stat_to_iatt (&entry_nb->d_stat, &entry->d_stat);
+
+ strcpy (entry->d_name, entry_nb->d_name);
+
+ list_add_tail (&entry->list, &entries->list);
+
+ remaining_size -= (sizeof (*entry_nb) + entry_strlen + 1);
+ count++;
+ }
+
+ return count;
+}
+
+#endif
diff --git a/xlators/protocol/lib/src/transport.c b/xlators/protocol/lib/src/transport.c
new file mode 100644
index 00000000..d460d020
--- /dev/null
+++ b/xlators/protocol/lib/src/transport.c
@@ -0,0 +1,422 @@
+/*
+ Copyright (c) 2006-2009 Gluster, Inc. <http://www.gluster.com>
+ This file is part of GlusterFS.
+
+ GlusterFS is 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/>.
+*/
+
+#include <dlfcn.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/poll.h>
+#include <fnmatch.h>
+#include <stdint.h>
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "logging.h"
+#include "transport.h"
+#include "glusterfs.h"
+#include "xlator.h"
+#include "list.h"
+
+
+transport_t *
+transport_load (dict_t *options,
+ xlator_t *xl)
+{
+ struct transport *trans = NULL, *return_trans = NULL;
+ char *name = NULL;
+ void *handle = NULL;
+ char *type = NULL;
+ char str[] = "ERROR";
+ int32_t ret = -1;
+ int8_t is_tcp = 0, is_unix = 0, is_ibsdp = 0;
+ volume_opt_list_t *vol_opt = NULL;
+
+ GF_VALIDATE_OR_GOTO("transport", options, fail);
+ GF_VALIDATE_OR_GOTO("transport", xl, fail);
+
+ trans = GF_CALLOC (1, sizeof (struct transport),
+ gf_common_mt_transport);
+ GF_VALIDATE_OR_GOTO("transport", trans, fail);
+
+ trans->xl = xl;
+ type = str;
+
+ /* Backward compatibility */
+ ret = dict_get_str (options, "transport-type", &type);
+ if (ret < 0) {
+ ret = dict_set_str (options, "transport-type", "socket");
+ if (ret < 0)
+ gf_log ("dict", GF_LOG_DEBUG,
+ "setting transport-type failed");
+ gf_log ("transport", GF_LOG_WARNING,
+ "missing 'option transport-type'. defaulting to "
+ "\"socket\"");
+ } else {
+ {
+ /* Backword compatibility to handle * /client,
+ * * /server.
+ */
+ char *tmp = strchr (type, '/');
+ if (tmp)
+ *tmp = '\0';
+ }
+
+ is_tcp = strcmp (type, "tcp");
+ is_unix = strcmp (type, "unix");
+ is_ibsdp = strcmp (type, "ib-sdp");
+ if ((is_tcp == 0) ||
+ (is_unix == 0) ||
+ (is_ibsdp == 0)) {
+ if (is_unix == 0)
+ ret = dict_set_str (options,
+ "transport.address-family",
+ "unix");
+ if (is_ibsdp == 0)
+ ret = dict_set_str (options,
+ "transport.address-family",
+ "inet-sdp");
+
+ if (ret < 0)
+ gf_log ("dict", GF_LOG_DEBUG,
+ "setting address-family failed");
+
+ ret = dict_set_str (options,
+ "transport-type", "socket");
+ if (ret < 0)
+ gf_log ("dict", GF_LOG_DEBUG,
+ "setting transport-type failed");
+ }
+ }
+
+ ret = dict_get_str (options, "transport-type", &type);
+ if (ret < 0) {
+ GF_FREE (trans);
+ gf_log ("transport", GF_LOG_ERROR,
+ "'option transport-type <xx>' missing in volume '%s'",
+ xl->name);
+ goto fail;
+ }
+
+ ret = gf_asprintf (&name, "%s/%s.so", TRANSPORTDIR, type);
+ if (-1 == ret) {
+ gf_log ("transport", GF_LOG_ERROR, "asprintf failed");
+ goto fail;
+ }
+ gf_log ("transport", GF_LOG_DEBUG,
+ "attempt to load file %s", name);
+
+ handle = dlopen (name, RTLD_NOW|RTLD_GLOBAL);
+ if (handle == NULL) {
+ gf_log ("transport", GF_LOG_ERROR, "%s", dlerror ());
+ gf_log ("transport", GF_LOG_ERROR,
+ "volume '%s': transport-type '%s' is not valid or "
+ "not found on this machine",
+ xl->name, type);
+ GF_FREE (name);
+ GF_FREE (trans);
+ goto fail;
+ }
+ GF_FREE (name);
+
+ trans->ops = dlsym (handle, "tops");
+ if (trans->ops == NULL) {
+ gf_log ("transport", GF_LOG_ERROR,
+ "dlsym (transport_ops) on %s", dlerror ());
+ GF_FREE (trans);
+ goto fail;
+ }
+
+ trans->init = dlsym (handle, "init");
+ if (trans->init == NULL) {
+ gf_log ("transport", GF_LOG_ERROR,
+ "dlsym (gf_transport_init) on %s", dlerror ());
+ GF_FREE (trans);
+ goto fail;
+ }
+
+ trans->fini = dlsym (handle, "fini");
+ if (trans->fini == NULL) {
+ gf_log ("transport", GF_LOG_ERROR,
+ "dlsym (gf_transport_fini) on %s", dlerror ());
+ GF_FREE (trans);
+ goto fail;
+ }
+
+ vol_opt = GF_CALLOC (1, sizeof (volume_opt_list_t),
+ gf_common_mt_volume_opt_list_t);
+ vol_opt->given_opt = dlsym (handle, "options");
+ if (vol_opt->given_opt == NULL) {
+ gf_log ("transport", GF_LOG_DEBUG,
+ "volume option validation not specified");
+ } else {
+ list_add_tail (&vol_opt->list, &xl->volume_options);
+ if (-1 ==
+ validate_xlator_volume_options (xl,
+ vol_opt->given_opt)) {
+ gf_log ("transport", GF_LOG_ERROR,
+ "volume option validation failed");
+ GF_FREE (trans);
+ goto fail;
+ }
+ }
+
+ ret = trans->init (trans);
+ if (ret != 0) {
+ gf_log ("transport", GF_LOG_ERROR,
+ "'%s' initialization failed", type);
+ GF_FREE (trans);
+ goto fail;
+ }
+
+ pthread_mutex_init (&trans->lock, NULL);
+ return_trans = trans;
+fail:
+ return return_trans;
+}
+
+
+int32_t
+transport_submit (transport_t *this, char *buf, int32_t len,
+ struct iovec *vector, int count,
+ struct iobref *iobref)
+{
+ int32_t ret = -1;
+ transport_t *peer_trans = NULL;
+ struct iobuf *iobuf = NULL;
+ struct transport_msg *msg = NULL;
+
+ if (this->peer_trans) {
+ peer_trans = this->peer_trans;
+
+ msg = GF_CALLOC (1, sizeof (*msg),
+ gf_common_mt_transport_msg);
+ if (!msg) {
+ return -ENOMEM;
+ }
+
+ msg->hdr = buf;
+ msg->hdrlen = len;
+
+ if (vector) {
+ iobuf = iobuf_get (this->xl->ctx->iobuf_pool);
+ if (!iobuf) {
+ GF_FREE (msg->hdr);
+ GF_FREE (msg);
+ return -ENOMEM;
+ }
+
+ iov_unload (iobuf->ptr, vector, count);
+ msg->iobuf = iobuf;
+ }
+
+ pthread_mutex_lock (&peer_trans->handover.mutex);
+ {
+ list_add_tail (&msg->list, &peer_trans->handover.msgs);
+ pthread_cond_broadcast (&peer_trans->handover.cond);
+ }
+ pthread_mutex_unlock (&peer_trans->handover.mutex);
+
+ return 0;
+ }
+
+ GF_VALIDATE_OR_GOTO("transport", this, fail);
+ GF_VALIDATE_OR_GOTO("transport", this->ops, fail);
+
+ ret = this->ops->submit (this, buf, len, vector, count, iobref);
+fail:
+ return ret;
+}
+
+
+int32_t
+transport_connect (transport_t *this)
+{
+ int ret = -1;
+
+ GF_VALIDATE_OR_GOTO("transport", this, fail);
+
+ ret = this->ops->connect (this);
+fail:
+ return ret;
+}
+
+
+int32_t
+transport_listen (transport_t *this)
+{
+ int ret = -1;
+
+ GF_VALIDATE_OR_GOTO("transport", this, fail);
+
+ ret = this->ops->listen (this);
+fail:
+ return ret;
+}
+
+
+int32_t
+transport_disconnect (transport_t *this)
+{
+ int32_t ret = -1;
+
+ GF_VALIDATE_OR_GOTO("transport", this, fail);
+
+ ret = this->ops->disconnect (this);
+fail:
+ return ret;
+}
+
+
+int32_t
+transport_destroy (transport_t *this)
+{
+ int32_t ret = -1;
+
+ GF_VALIDATE_OR_GOTO("transport", this, fail);
+
+ if (this->fini)
+ this->fini (this);
+
+ pthread_mutex_destroy (&this->lock);
+ GF_FREE (this);
+fail:
+ return ret;
+}
+
+
+transport_t *
+transport_ref (transport_t *this)
+{
+ transport_t *return_this = NULL;
+
+ GF_VALIDATE_OR_GOTO("transport", this, fail);
+
+ pthread_mutex_lock (&this->lock);
+ {
+ this->refcount ++;
+ }
+ pthread_mutex_unlock (&this->lock);
+
+ return_this = this;
+fail:
+ return return_this;
+}
+
+
+int32_t
+transport_receive (transport_t *this, char **hdr_p, size_t *hdrlen_p,
+ struct iobuf **iobuf_p)
+{
+ int32_t ret = -1;
+
+ GF_VALIDATE_OR_GOTO("transport", this, fail);
+
+ if (this->peer_trans) {
+ *hdr_p = this->handover.msg->hdr;
+ *hdrlen_p = this->handover.msg->hdrlen;
+ *iobuf_p = this->handover.msg->iobuf;
+
+ return 0;
+ }
+
+ ret = this->ops->receive (this, hdr_p, hdrlen_p, iobuf_p);
+fail:
+ return ret;
+}
+
+
+int32_t
+transport_unref (transport_t *this)
+{
+ int32_t refcount = 0;
+ int32_t ret = -1;
+
+ GF_VALIDATE_OR_GOTO("transport", this, fail);
+
+ pthread_mutex_lock (&this->lock);
+ {
+ refcount = --this->refcount;
+ }
+ pthread_mutex_unlock (&this->lock);
+
+ if (refcount == 0) {
+ xlator_notify (this->xl, GF_EVENT_TRANSPORT_CLEANUP, this);
+ transport_destroy (this);
+ }
+
+ ret = 0;
+fail:
+ return ret;
+}
+
+
+void *
+transport_peerproc (void *trans_data)
+{
+ transport_t *trans = NULL;
+ struct transport_msg *msg = NULL;
+
+ trans = trans_data;
+
+ while (1) {
+ pthread_mutex_lock (&trans->handover.mutex);
+ {
+ while (list_empty (&trans->handover.msgs))
+ pthread_cond_wait (&trans->handover.cond,
+ &trans->handover.mutex);
+
+ msg = list_entry (trans->handover.msgs.next,
+ struct transport_msg, list);
+
+ list_del_init (&msg->list);
+ }
+ pthread_mutex_unlock (&trans->handover.mutex);
+
+ trans->handover.msg = msg;
+
+ xlator_notify (trans->xl, GF_EVENT_POLLIN, trans);
+
+ GF_FREE (msg);
+ }
+}
+
+
+int
+transport_setpeer (transport_t *trans, transport_t *peer_trans)
+{
+ trans->peer_trans = transport_ref (peer_trans);
+
+ INIT_LIST_HEAD (&trans->handover.msgs);
+ pthread_cond_init (&trans->handover.cond, NULL);
+ pthread_mutex_init (&trans->handover.mutex, NULL);
+ pthread_create (&trans->handover.thread, NULL,
+ transport_peerproc, trans);
+
+ peer_trans->peer_trans = transport_ref (trans);
+
+ INIT_LIST_HEAD (&peer_trans->handover.msgs);
+ pthread_cond_init (&peer_trans->handover.cond, NULL);
+ pthread_mutex_init (&peer_trans->handover.mutex, NULL);
+ pthread_create (&peer_trans->handover.thread, NULL,
+ transport_peerproc, peer_trans);
+
+ return 0;
+}
diff --git a/xlators/protocol/lib/src/transport.h b/xlators/protocol/lib/src/transport.h
new file mode 100644
index 00000000..f0623d5b
--- /dev/null
+++ b/xlators/protocol/lib/src/transport.h
@@ -0,0 +1,106 @@
+/*
+ Copyright (c) 2006-2009 Gluster, Inc. <http://www.gluster.com>
+ This file is part of GlusterFS.
+
+ GlusterFS is 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 __TRANSPORT_H__
+#define __TRANSPORT_H__
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include <inttypes.h>
+
+struct transport_ops;
+typedef struct transport transport_t;
+
+#include "xlator.h"
+#include "dict.h"
+#include "compat.h"
+
+typedef struct peer_info {
+ struct sockaddr_storage sockaddr;
+ socklen_t sockaddr_len;
+ char identifier[UNIX_PATH_MAX];
+}peer_info_t;
+
+struct transport_msg {
+ struct list_head list;
+ char *hdr;
+ int hdrlen;
+ struct iobuf *iobuf;
+};
+
+struct transport {
+ struct transport_ops *ops;
+ void *private;
+ void *xl_private;
+ pthread_mutex_t lock;
+ int32_t refcount;
+
+ xlator_t *xl;
+ void *dnscache;
+ data_t *buf;
+ int32_t (*init) (transport_t *this);
+ void (*fini) (transport_t *this);
+ /* int (*notify) (transport_t *this, int event, void *data); */
+ peer_info_t peerinfo;
+ peer_info_t myinfo;
+
+ transport_t *peer_trans;
+ struct {
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ pthread_t thread;
+ struct list_head msgs;
+ struct transport_msg *msg;
+ } handover;
+
+};
+
+struct transport_ops {
+ int32_t (*receive) (transport_t *this, char **hdr_p, size_t *hdrlen_p,
+ struct iobuf **iobuf_p);
+ int32_t (*submit) (transport_t *this, char *buf, int len,
+ struct iovec *vector, int count,
+ struct iobref *iobref);
+ int32_t (*connect) (transport_t *this);
+ int32_t (*listen) (transport_t *this);
+ int32_t (*disconnect) (transport_t *this);
+};
+
+
+int32_t transport_listen (transport_t *this);
+int32_t transport_connect (transport_t *this);
+int32_t transport_disconnect (transport_t *this);
+int32_t transport_notify (transport_t *this, int event);
+int32_t transport_submit (transport_t *this, char *buf, int len,
+ struct iovec *vector, int count,
+ struct iobref *iobref);
+int32_t transport_receive (transport_t *this, char **hdr_p, size_t *hdrlen_p,
+ struct iobuf **iobuf_p);
+int32_t transport_destroy (transport_t *this);
+
+transport_t *transport_load (dict_t *options, xlator_t *xl);
+transport_t *transport_ref (transport_t *trans);
+int32_t transport_unref (transport_t *trans);
+
+int transport_setpeer (transport_t *trans, transport_t *trans_peer);
+
+#endif /* __TRANSPORT_H__ */
generated by cgit (git 2.34.1) at 2024-04-28 13:42:11 +0000