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-rw-r--r--xlators/protocol/server/src/server-helpers.c1392
1 files changed, 1392 insertions, 0 deletions
diff --git a/xlators/protocol/server/src/server-helpers.c b/xlators/protocol/server/src/server-helpers.c
new file mode 100644
index 00000000000..5cae205d76f
--- /dev/null
+++ b/xlators/protocol/server/src/server-helpers.c
@@ -0,0 +1,1392 @@
+/*
+ Copyright (c) 2010 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
+
+#include "server.h"
+#include "server-helpers.h"
+
+int
+server_decode_groups (call_frame_t *frame, rpcsvc_request_t *req)
+{
+ int i = 0;
+
+ if ((!frame) || (!req))
+ return 0;
+
+ frame->root->ngrps = req->auxgidcount;
+ if (frame->root->ngrps == 0)
+ return 0;
+
+ if (frame->root->ngrps > GF_REQUEST_MAXGROUPS)
+ return -1;
+
+ for (; i < frame->root->ngrps; ++i)
+ frame->root->groups[i] = req->auxgids[i];
+
+ return 0;
+}
+
+/* server_loc_fill - derive a loc_t for a given inode number
+ *
+ * NOTE: make sure that @loc is empty, because any pointers it holds with reference will
+ * be leaked after returning from here.
+ */
+int
+server_loc_fill (loc_t *loc, server_state_t *state,
+ ino_t ino, ino_t par,
+ const char *name, const char *path)
+{
+ inode_t *inode = NULL;
+ inode_t *parent = NULL;
+ int32_t ret = -1;
+ char *dentry_path = NULL;
+
+
+ GF_VALIDATE_OR_GOTO ("server", loc, out);
+ GF_VALIDATE_OR_GOTO ("server", state, out);
+ GF_VALIDATE_OR_GOTO ("server", path, out);
+
+ /* anything beyond this point is success */
+ ret = 0;
+ loc->ino = ino;
+ inode = loc->inode;
+ if (inode == NULL) {
+ if (ino)
+ inode = inode_search (state->itable, ino, NULL);
+
+ if ((inode == NULL) &&
+ (par && name))
+ inode = inode_search (state->itable, par, name);
+
+ loc->inode = inode;
+ if (inode)
+ loc->ino = inode->ino;
+ }
+
+ parent = loc->parent;
+ if (parent == NULL) {
+ if (inode)
+ parent = inode_parent (inode, par, name);
+ else
+ parent = inode_search (state->itable, par, NULL);
+ loc->parent = parent;
+ }
+
+ if (name && parent) {
+ ret = inode_path (parent, name, &dentry_path);
+ if (ret < 0) {
+ gf_log (state->conn->bound_xl->name, GF_LOG_DEBUG,
+ "failed to build path for %"PRId64"/%s: %s",
+ parent->ino, name, strerror (-ret));
+ }
+ } else if (inode) {
+ ret = inode_path (inode, NULL, &dentry_path);
+ if (ret < 0) {
+ gf_log (state->conn->bound_xl->name, GF_LOG_DEBUG,
+ "failed to build path for %"PRId64": %s",
+ inode->ino, strerror (-ret));
+ }
+ }
+
+ if (dentry_path) {
+ if (strcmp (dentry_path, path)) {
+ gf_log (state->conn->bound_xl->name, GF_LOG_DEBUG,
+ "paths differ for inode(%"PRId64"): "
+ "client path = %s. dentry path = %s",
+ ino, path, dentry_path);
+ }
+
+ loc->path = dentry_path;
+ loc->name = strrchr (loc->path, '/');
+ if (loc->name)
+ loc->name++;
+ } else {
+ loc->path = gf_strdup (path);
+ loc->name = strrchr (loc->path, '/');
+ if (loc->name)
+ loc->name++;
+ }
+
+out:
+ return ret;
+}
+
+/*
+ * stat_to_str - convert struct iatt to a ASCII string
+ * @stbuf: struct iatt pointer
+ *
+ * not for external reference
+ */
+char *
+stat_to_str (struct iatt *stbuf)
+{
+ int ret = 0;
+ char *tmp_buf = NULL;
+
+ uint64_t dev = stbuf->ia_gen;
+ uint64_t ino = stbuf->ia_ino;
+ uint32_t mode = st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type);
+ uint32_t nlink = stbuf->ia_nlink;
+ uint32_t uid = stbuf->ia_uid;
+ uint32_t gid = stbuf->ia_gid;
+ uint64_t rdev = stbuf->ia_rdev;
+ uint64_t size = stbuf->ia_size;
+ uint32_t blksize = stbuf->ia_blksize;
+ uint64_t blocks = stbuf->ia_blocks;
+ uint32_t atime = stbuf->ia_atime;
+ uint32_t mtime = stbuf->ia_mtime;
+ uint32_t ctime = stbuf->ia_ctime;
+
+ uint32_t atime_nsec = stbuf->ia_atime_nsec;
+ uint32_t mtime_nsec = stbuf->ia_mtime_nsec;
+ uint32_t ctime_nsec = stbuf->ia_ctime_nsec;
+
+
+ ret = gf_asprintf (&tmp_buf,
+ GF_STAT_PRINT_FMT_STR,
+ dev,
+ ino,
+ mode,
+ nlink,
+ uid,
+ gid,
+ rdev,
+ size,
+ blksize,
+ blocks,
+ atime,
+ atime_nsec,
+ mtime,
+ mtime_nsec,
+ ctime,
+ ctime_nsec);
+ if (-1 == ret) {
+ gf_log ("protocol/server", GF_LOG_DEBUG,
+ "asprintf failed while setting up stat buffer string");
+ return NULL;
+ }
+ return tmp_buf;
+}
+
+
+void
+server_loc_wipe (loc_t *loc)
+{
+ if (loc->parent) {
+ inode_unref (loc->parent);
+ loc->parent = NULL;
+ }
+
+ if (loc->inode) {
+ inode_unref (loc->inode);
+ loc->inode = NULL;
+ }
+
+ if (loc->path)
+ GF_FREE ((void *)loc->path);
+}
+
+
+void
+server_resolve_wipe (server_resolve_t *resolve)
+{
+ struct resolve_comp *comp = NULL;
+ int i = 0;
+
+ if (resolve->path)
+ GF_FREE ((void *)resolve->path);
+
+ if (resolve->bname)
+ GF_FREE ((void *)resolve->bname);
+
+ if (resolve->resolved)
+ GF_FREE ((void *)resolve->resolved);
+
+ loc_wipe (&resolve->deep_loc);
+
+ comp = resolve->components;
+ if (comp) {
+ for (i = 0; comp[i].basename; i++) {
+ if (comp[i].inode)
+ inode_unref (comp[i].inode);
+ }
+ GF_FREE ((void *)resolve->components);
+ }
+}
+
+
+void
+free_state (server_state_t *state)
+{
+ if (state->conn) {
+ //xprt_svc_unref (state->conn);
+ state->conn = NULL;
+ }
+
+ if (state->fd) {
+ fd_unref (state->fd);
+ state->fd = NULL;
+ }
+
+ if (state->iobref) {
+ iobref_unref (state->iobref);
+ state->iobref = NULL;
+ }
+
+ if (state->iobuf) {
+ iobuf_unref (state->iobuf);
+ state->iobuf = NULL;
+ }
+
+ if (state->dict) {
+ dict_unref (state->dict);
+ state->dict = NULL;
+ }
+
+ if (state->volume)
+ GF_FREE ((void *)state->volume);
+
+ if (state->name)
+ GF_FREE ((void *)state->name);
+
+ server_loc_wipe (&state->loc);
+ server_loc_wipe (&state->loc2);
+
+ server_resolve_wipe (&state->resolve);
+ server_resolve_wipe (&state->resolve2);
+
+ GF_FREE (state);
+}
+
+
+call_frame_t *
+server_copy_frame (call_frame_t *frame)
+{
+ call_frame_t *new_frame = NULL;
+ server_state_t *state = NULL, *new_state = NULL;
+
+ state = frame->root->state;
+
+ new_frame = copy_frame (frame);
+
+ new_state = GF_CALLOC (1, sizeof (server_state_t), 0);
+
+ new_frame->root->op = frame->root->op;
+ new_frame->root->type = frame->root->type;
+ new_frame->root->trans = state->conn;
+ new_frame->root->state = new_state;
+
+ new_state->itable = state->itable;
+ new_state->conn = state->conn;
+ //new_state->conn = xprt_ref (state->conn);
+
+ new_state->resolve.fd_no = -1;
+ new_state->resolve2.fd_no = -1;
+
+ return new_frame;
+}
+
+
+int
+gf_add_locker (struct _lock_table *table, const char *volume,
+ loc_t *loc, fd_t *fd, pid_t pid)
+{
+ int32_t ret = -1;
+ struct _locker *new = NULL;
+ uint8_t dir = 0;
+
+ new = GF_CALLOC (1, sizeof (struct _locker), 0);
+ if (new == NULL) {
+ gf_log ("server", GF_LOG_ERROR,
+ "failed to allocate memory for \'struct _locker\'");
+ goto out;
+ }
+ INIT_LIST_HEAD (&new->lockers);
+
+ new->volume = gf_strdup (volume);
+
+ if (fd == NULL) {
+ loc_copy (&new->loc, loc);
+ dir = IA_ISDIR (new->loc.inode->ia_type);
+ } else {
+ new->fd = fd_ref (fd);
+ dir = IA_ISDIR (fd->inode->ia_type);
+ }
+
+ new->pid = pid;
+
+ LOCK (&table->lock);
+ {
+ if (dir)
+ list_add_tail (&new->lockers, &table->dir_lockers);
+ else
+ list_add_tail (&new->lockers, &table->file_lockers);
+ }
+ UNLOCK (&table->lock);
+out:
+ return ret;
+}
+
+
+int
+gf_del_locker (struct _lock_table *table, const char *volume,
+ loc_t *loc, fd_t *fd, pid_t pid)
+{
+ struct _locker *locker = NULL;
+ struct _locker *tmp = NULL;
+ int32_t ret = 0;
+ uint8_t dir = 0;
+ struct list_head *head = NULL;
+ struct list_head del;
+
+ INIT_LIST_HEAD (&del);
+
+ if (fd) {
+ dir = IA_ISDIR (fd->inode->ia_type);
+ } else {
+ dir = IA_ISDIR (loc->inode->ia_type);
+ }
+
+ LOCK (&table->lock);
+ {
+ if (dir) {
+ head = &table->dir_lockers;
+ } else {
+ head = &table->file_lockers;
+ }
+
+ list_for_each_entry_safe (locker, tmp, head, lockers) {
+ if (locker->fd && fd &&
+ (locker->fd == fd) && (locker->pid == pid)
+ && !strcmp (locker->volume, volume)) {
+ list_move_tail (&locker->lockers, &del);
+ } else if (locker->loc.inode &&
+ loc &&
+ (locker->loc.inode == loc->inode) &&
+ (locker->pid == pid)
+ && !strcmp (locker->volume, volume)) {
+ list_move_tail (&locker->lockers, &del);
+ }
+ }
+ }
+ UNLOCK (&table->lock);
+
+ tmp = NULL;
+ locker = NULL;
+
+ list_for_each_entry_safe (locker, tmp, &del, lockers) {
+ list_del_init (&locker->lockers);
+ if (locker->fd)
+ fd_unref (locker->fd);
+ else
+ loc_wipe (&locker->loc);
+
+ GF_FREE (locker->volume);
+ GF_FREE (locker);
+ }
+
+ return ret;
+}
+
+
+int
+gf_direntry_to_bin (dir_entry_t *head, char *buffer)
+{
+ dir_entry_t *trav = NULL;
+ uint32_t len = 0;
+ uint32_t this_len = 0;
+ size_t buflen = -1;
+ char *ptr = NULL;
+ char *tmp_buf = NULL;
+
+ trav = head->next;
+ while (trav) {
+ len += strlen (trav->name);
+ len += 1;
+ len += strlen (trav->link);
+ len += 1; /* for '\n' */
+ len += 256; // max possible for statbuf;
+ trav = trav->next;
+ }
+
+ ptr = buffer;
+ trav = head->next;
+ while (trav) {
+ tmp_buf = stat_to_str (&trav->buf);
+ /* tmp_buf will have \n before \0 */
+
+ this_len = sprintf (ptr, "%s/%s%s\n",
+ trav->name, tmp_buf,
+ trav->link);
+
+ GF_FREE (tmp_buf);
+ trav = trav->next;
+ ptr += this_len;
+ }
+
+ buflen = strlen (buffer);
+
+ return buflen;
+}
+
+
+static struct _lock_table *
+gf_lock_table_new (void)
+{
+ struct _lock_table *new = NULL;
+
+ new = GF_CALLOC (1, sizeof (struct _lock_table), 0);
+ if (new == NULL) {
+ gf_log ("server-protocol", GF_LOG_CRITICAL,
+ "failed to allocate memory for new lock table");
+ goto out;
+ }
+ INIT_LIST_HEAD (&new->dir_lockers);
+ INIT_LIST_HEAD (&new->file_lockers);
+ LOCK_INIT (&new->lock);
+out:
+ return new;
+}
+
+static int
+server_nop_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno)
+{
+ server_state_t *state = NULL;
+
+ state = CALL_STATE(frame);
+
+ if (state)
+ free_state (state);
+ STACK_DESTROY (frame->root);
+ return 0;
+}
+
+int
+do_lock_table_cleanup (xlator_t *this, server_connection_t *conn,
+ call_frame_t *frame, struct _lock_table *ltable)
+{
+ struct list_head file_lockers, dir_lockers;
+ call_frame_t *tmp_frame = NULL;
+ struct flock flock = {0, };
+ xlator_t *bound_xl = NULL;
+ struct _locker *locker = NULL, *tmp = NULL;
+ int ret = -1;
+
+ bound_xl = conn->bound_xl;
+ INIT_LIST_HEAD (&file_lockers);
+ INIT_LIST_HEAD (&dir_lockers);
+
+ LOCK (&ltable->lock);
+ {
+ list_splice_init (&ltable->file_lockers,
+ &file_lockers);
+
+ list_splice_init (&ltable->dir_lockers, &dir_lockers);
+ }
+ UNLOCK (&ltable->lock);
+
+ GF_FREE (ltable);
+
+ flock.l_type = F_UNLCK;
+ flock.l_start = 0;
+ flock.l_len = 0;
+ list_for_each_entry_safe (locker,
+ tmp, &file_lockers, lockers) {
+ tmp_frame = copy_frame (frame);
+ if (tmp_frame == NULL) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "out of memory");
+ goto out;
+ }
+ /*
+ pid = 0 is a special case that tells posix-locks
+ to release all locks from this transport
+ */
+ tmp_frame->root->pid = 0;
+ tmp_frame->root->trans = conn;
+
+ if (locker->fd) {
+ STACK_WIND (tmp_frame, server_nop_cbk, bound_xl,
+ bound_xl->fops->finodelk,
+ locker->volume,
+ locker->fd, F_SETLK, &flock);
+ fd_unref (locker->fd);
+ } else {
+ STACK_WIND (tmp_frame, server_nop_cbk, bound_xl,
+ bound_xl->fops->inodelk,
+ locker->volume,
+ &(locker->loc), F_SETLK, &flock);
+ loc_wipe (&locker->loc);
+ }
+
+ GF_FREE (locker->volume);
+
+ list_del_init (&locker->lockers);
+ GF_FREE (locker);
+ }
+
+ tmp = NULL;
+ locker = NULL;
+ list_for_each_entry_safe (locker, tmp, &dir_lockers, lockers) {
+ tmp_frame = copy_frame (frame);
+
+ tmp_frame->root->pid = 0;
+ tmp_frame->root->trans = conn;
+
+ if (locker->fd) {
+ STACK_WIND (tmp_frame, server_nop_cbk, bound_xl,
+ bound_xl->fops->fentrylk,
+ locker->volume,
+ locker->fd, NULL,
+ ENTRYLK_UNLOCK, ENTRYLK_WRLCK);
+ fd_unref (locker->fd);
+ } else {
+ STACK_WIND (tmp_frame, server_nop_cbk, bound_xl,
+ bound_xl->fops->entrylk,
+ locker->volume,
+ &(locker->loc), NULL,
+ ENTRYLK_UNLOCK, ENTRYLK_WRLCK);
+ loc_wipe (&locker->loc);
+ }
+
+ GF_FREE (locker->volume);
+
+ list_del_init (&locker->lockers);
+ GF_FREE (locker);
+ }
+ ret = 0;
+
+out:
+ return ret;
+}
+
+
+static int
+server_connection_cleanup_flush_cbk (call_frame_t *frame, void *cookie,
+ xlator_t *this, int32_t op_ret,
+ int32_t op_errno)
+{
+ fd_t *fd = NULL;
+
+ fd = frame->local;
+
+ fd_unref (fd);
+ frame->local = NULL;
+
+ STACK_DESTROY (frame->root);
+ return 0;
+}
+
+
+int
+do_fd_cleanup (xlator_t *this, server_connection_t *conn, call_frame_t *frame,
+ fdentry_t *fdentries, int fd_count)
+{
+ fd_t *fd = NULL;
+ int i = 0, ret = -1;
+ call_frame_t *tmp_frame = NULL;
+ xlator_t *bound_xl = NULL;
+
+ bound_xl = conn->bound_xl;
+ for (i = 0;i < fd_count; i++) {
+ fd = fdentries[i].fd;
+
+ if (fd != NULL) {
+ tmp_frame = copy_frame (frame);
+ if (tmp_frame == NULL) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "out of memory");
+ goto out;
+ }
+ tmp_frame->local = fd;
+
+ tmp_frame->root->pid = 0;
+ tmp_frame->root->trans = conn;
+ tmp_frame->root->lk_owner = 0;
+ STACK_WIND (tmp_frame,
+ server_connection_cleanup_flush_cbk,
+ bound_xl, bound_xl->fops->flush, fd);
+ }
+ }
+
+ GF_FREE (fdentries);
+ ret = 0;
+
+out:
+ return ret;
+}
+
+int
+do_connection_cleanup (xlator_t *this, server_connection_t *conn,
+ struct _lock_table *ltable, fdentry_t *fdentries, int fd_count)
+{
+ int ret = 0;
+ int saved_ret = 0;
+ call_frame_t *frame = NULL;
+ server_state_t *state = NULL;
+
+ frame = create_frame (this, this->ctx->pool);
+ if (frame == NULL) {
+ gf_log (this->name, GF_LOG_ERROR, "out of memory");
+ goto out;
+ }
+
+ saved_ret = do_lock_table_cleanup (this, conn, frame, ltable);
+
+ if (fdentries != NULL) {
+ ret = do_fd_cleanup (this, conn, frame, fdentries, fd_count);
+ }
+
+ state = CALL_STATE (frame);
+ if (state)
+ GF_FREE (state);
+
+ STACK_DESTROY (frame->root);
+
+ if (saved_ret || ret) {
+ ret = -1;
+ }
+
+out:
+ return ret;
+}
+
+
+int
+server_connection_cleanup (xlator_t *this, server_connection_t *conn)
+{
+ char do_cleanup = 0;
+ struct _lock_table *ltable = NULL;
+ fdentry_t *fdentries = NULL;
+ uint32_t fd_count = 0;
+ int ret = 0;
+
+ if (conn == NULL) {
+ goto out;
+ }
+
+ pthread_mutex_lock (&conn->lock);
+ {
+ conn->active_transports--;
+ if (conn->active_transports == 0) {
+ if (conn->ltable) {
+ ltable = conn->ltable;
+ conn->ltable = gf_lock_table_new ();
+ }
+
+ if (conn->fdtable) {
+ fdentries = gf_fd_fdtable_get_all_fds (conn->fdtable,
+ &fd_count);
+ }
+ do_cleanup = 1;
+ }
+ }
+ pthread_mutex_unlock (&conn->lock);
+
+ if (do_cleanup && conn->bound_xl)
+ ret = do_connection_cleanup (this, conn, ltable, fdentries, fd_count);
+
+out:
+ return ret;
+}
+
+
+int
+server_connection_destroy (xlator_t *this, server_connection_t *conn)
+{
+ call_frame_t *frame = NULL, *tmp_frame = NULL;
+ xlator_t *bound_xl = NULL;
+ int32_t ret = -1;
+ server_state_t *state = NULL;
+ struct list_head file_lockers;
+ struct list_head dir_lockers;
+ struct _lock_table *ltable = NULL;
+ struct _locker *locker = NULL, *tmp = NULL;
+ struct flock flock = {0,};
+ fd_t *fd = NULL;
+ int32_t i = 0;
+ fdentry_t *fdentries = NULL;
+ uint32_t fd_count = 0;
+
+ if (conn == NULL) {
+ ret = 0;
+ goto out;
+ }
+
+ bound_xl = (xlator_t *) (conn->bound_xl);
+
+ if (bound_xl) {
+ /* trans will have ref_count = 1 after this call, but its
+ ok since this function is called in
+ GF_EVENT_TRANSPORT_CLEANUP */
+ frame = create_frame (this, this->ctx->pool);
+
+ pthread_mutex_lock (&(conn->lock));
+ {
+ if (conn->ltable) {
+ ltable = conn->ltable;
+ conn->ltable = NULL;
+ }
+ }
+ pthread_mutex_unlock (&conn->lock);
+
+ INIT_LIST_HEAD (&file_lockers);
+ INIT_LIST_HEAD (&dir_lockers);
+
+ LOCK (&ltable->lock);
+ {
+ list_splice_init (&ltable->file_lockers,
+ &file_lockers);
+
+ list_splice_init (&ltable->dir_lockers, &dir_lockers);
+ }
+ UNLOCK (&ltable->lock);
+ GF_FREE (ltable);
+
+ flock.l_type = F_UNLCK;
+ flock.l_start = 0;
+ flock.l_len = 0;
+ list_for_each_entry_safe (locker,
+ tmp, &file_lockers, lockers) {
+ tmp_frame = copy_frame (frame);
+ /*
+ pid = 0 is a special case that tells posix-locks
+ to release all locks from this transport
+ */
+ tmp_frame->root->pid = 0;
+ tmp_frame->root->trans = conn;
+
+ if (locker->fd) {
+ STACK_WIND (tmp_frame, server_nop_cbk, bound_xl,
+ bound_xl->fops->finodelk,
+ locker->volume,
+ locker->fd, F_SETLK, &flock);
+ fd_unref (locker->fd);
+ } else {
+ STACK_WIND (tmp_frame, server_nop_cbk, bound_xl,
+ bound_xl->fops->inodelk,
+ locker->volume,
+ &(locker->loc), F_SETLK, &flock);
+ loc_wipe (&locker->loc);
+ }
+
+ GF_FREE (locker->volume);
+
+ list_del_init (&locker->lockers);
+ GF_FREE (locker);
+ }
+
+ tmp = NULL;
+ locker = NULL;
+ list_for_each_entry_safe (locker, tmp, &dir_lockers, lockers) {
+ tmp_frame = copy_frame (frame);
+
+ tmp_frame->root->pid = 0;
+ tmp_frame->root->trans = conn;
+
+ if (locker->fd) {
+ STACK_WIND (tmp_frame, server_nop_cbk, bound_xl,
+ bound_xl->fops->fentrylk,
+ locker->volume,
+ locker->fd, NULL,
+ ENTRYLK_UNLOCK, ENTRYLK_WRLCK);
+ fd_unref (locker->fd);
+ } else {
+ STACK_WIND (tmp_frame, server_nop_cbk, bound_xl,
+ bound_xl->fops->entrylk,
+ locker->volume,
+ &(locker->loc), NULL,
+ ENTRYLK_UNLOCK, ENTRYLK_WRLCK);
+ loc_wipe (&locker->loc);
+ }
+
+ GF_FREE (locker->volume);
+
+ list_del_init (&locker->lockers);
+ GF_FREE (locker);
+ }
+
+ pthread_mutex_lock (&(conn->lock));
+ {
+ if (conn->fdtable) {
+ fdentries = gf_fd_fdtable_get_all_fds (conn->fdtable,
+ &fd_count);
+ gf_fd_fdtable_destroy (conn->fdtable);
+ conn->fdtable = NULL;
+ }
+ }
+ pthread_mutex_unlock (&conn->lock);
+
+ if (fdentries != NULL) {
+ for (i = 0; i < fd_count; i++) {
+ fd = fdentries[i].fd;
+ if (fd != NULL) {
+ tmp_frame = copy_frame (frame);
+ tmp_frame->local = fd;
+
+ STACK_WIND (tmp_frame,
+ server_connection_cleanup_flush_cbk,
+ bound_xl,
+ bound_xl->fops->flush,
+ fd);
+ }
+ }
+ GF_FREE (fdentries);
+ }
+ }
+
+ if (frame) {
+ state = CALL_STATE (frame);
+ if (state)
+ GF_FREE (state);
+ STACK_DESTROY (frame->root);
+ }
+
+ gf_log (this->name, GF_LOG_INFO, "destroyed connection of %s",
+ conn->id);
+
+ GF_FREE (conn->id);
+ GF_FREE (conn);
+
+out:
+ return ret;
+}
+
+
+server_connection_t *
+server_connection_get (xlator_t *this, const char *id)
+{
+ server_connection_t *conn = NULL;
+ server_connection_t *trav = NULL;
+ server_conf_t *conf = NULL;
+
+ conf = this->private;
+
+ pthread_mutex_lock (&conf->mutex);
+ {
+ list_for_each_entry (trav, &conf->conns, list) {
+ if (!strcmp (id, trav->id)) {
+ conn = trav;
+ break;
+ }
+ }
+
+ if (!conn) {
+ conn = (void *) GF_CALLOC (1, sizeof (*conn), 0);
+
+ conn->id = gf_strdup (id);
+ conn->fdtable = gf_fd_fdtable_alloc ();
+ conn->ltable = gf_lock_table_new ();
+ conn->this = this;
+ pthread_mutex_init (&conn->lock, NULL);
+
+ list_add (&conn->list, &conf->conns);
+ }
+
+ conn->ref++;
+ conn->active_transports++;
+ }
+ pthread_mutex_unlock (&conf->mutex);
+
+ return conn;
+}
+
+
+void
+server_connection_put (xlator_t *this, server_connection_t *conn)
+{
+ server_conf_t *conf = NULL;
+ server_connection_t *todel = NULL;
+
+ if (conn == NULL) {
+ goto out;
+ }
+
+ conf = this->private;
+
+ pthread_mutex_lock (&conf->mutex);
+ {
+ conn->ref--;
+
+ if (!conn->ref) {
+ list_del_init (&conn->list);
+ todel = conn;
+ }
+ }
+ pthread_mutex_unlock (&conf->mutex);
+
+ if (todel) {
+ server_connection_destroy (this, todel);
+ }
+
+out:
+ return;
+}
+
+static call_frame_t *
+server_alloc_frame (rpcsvc_request_t *req)
+{
+ call_frame_t *frame = NULL;
+ server_state_t *state = NULL;
+ server_connection_t *conn = NULL;
+
+ GF_VALIDATE_OR_GOTO("server", req, out);
+
+ conn = (server_connection_t *)req->conn->trans->xl_private;
+ if (!conn)
+ goto out;
+ frame = create_frame (conn->this, req->conn->svc->ctx->pool);
+ GF_VALIDATE_OR_GOTO("server", frame, out);
+
+ state = GF_CALLOC (1, sizeof (*state), 0);
+ GF_VALIDATE_OR_GOTO("server", state, out);
+
+ if (conn->bound_xl)
+ state->itable = conn->bound_xl->itable;
+
+ state->xprt = req->conn->trans;
+ state->conn = conn;
+
+ state->resolve.fd_no = -1;
+ state->resolve2.fd_no = -1;
+
+ frame->root->state = state; /* which socket */
+ frame->root->unique = 0; /* which call */
+
+ frame->this = conn->this;
+out:
+ return frame;
+}
+
+
+
+call_frame_t *
+get_frame_from_request (rpcsvc_request_t *req)
+{
+ call_frame_t *frame = NULL;
+
+ frame = server_alloc_frame (req);
+ if (!frame)
+ goto out;
+
+ frame->root->op = req->procnum;
+ frame->root->type = req->type;
+
+ frame->root->unique = req->xid;
+
+ frame->root->uid = req->uid;
+ frame->root->gid = req->gid;
+ frame->root->pid = req->pid;
+ frame->root->lk_owner = req->lk_owner;
+
+ server_decode_groups (frame, req);
+
+ frame->local = req;
+out:
+ return frame;
+}
+
+
+int
+server_build_config (xlator_t *this, server_conf_t *conf)
+{
+ data_t *data = NULL;
+ int ret = -1;
+ struct stat buf = {0,};
+
+ ret = dict_get_int32 (this->options, "inode-lru-limit",
+ &conf->inode_lru_limit);
+ if (ret < 0) {
+ conf->inode_lru_limit = 1024;
+ }
+
+ conf->verify_volfile = 1;
+ data = dict_get (this->options, "verify-volfile-checksum");
+ if (data) {
+ ret = gf_string2boolean(data->data, &conf->verify_volfile);
+ if (ret != 0) {
+ gf_log (this->name, GF_LOG_WARNING,
+ "wrong value for 'verify-volfile-checksum', "
+ "Neglecting option");
+ }
+ }
+
+ data = dict_get (this->options, "trace");
+ if (data) {
+ ret = gf_string2boolean (data->data, &conf->trace);
+ if (ret != 0) {
+ gf_log (this->name, GF_LOG_WARNING,
+ "'trace' takes on only boolean values. "
+ "Neglecting option");
+ }
+ }
+
+ /* TODO: build_rpc_config (); */
+ ret = dict_get_int32 (this->options, "limits.transaction-size",
+ &conf->rpc_conf.max_block_size);
+ if (ret < 0) {
+ gf_log (this->name, GF_LOG_TRACE,
+ "defaulting limits.transaction-size to %d",
+ DEFAULT_BLOCK_SIZE);
+ conf->rpc_conf.max_block_size = DEFAULT_BLOCK_SIZE;
+ }
+
+ data = dict_get (this->options, "config-directory");
+ if (data) {
+ /* Check whether the specified directory exists,
+ or directory specified is non standard */
+ ret = stat (data->data, &buf);
+ if ((ret != 0) || !S_ISDIR (buf.st_mode)) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Directory '%s' doesn't exist, exiting.",
+ data->data);
+ ret = -1;
+ goto out;
+ }
+ /* Make sure that conf-dir doesn't contain ".." in path */
+ if ((gf_strstr (data->data, "/", "..")) == -1) {
+ ret = -1;
+ gf_log (this->name, GF_LOG_ERROR,
+ "%s: invalid conf_dir", data->data);
+ goto out;
+ }
+
+ conf->conf_dir = gf_strdup (data->data);
+ }
+ ret = 0;
+out:
+ return ret;
+}
+
+server_connection_t *
+get_server_conn_state (xlator_t *this, rpc_transport_t *xprt)
+{
+ return (server_connection_t *)xprt->xl_private;
+}
+
+server_connection_t *
+create_server_conn_state (xlator_t *this, rpc_transport_t *xprt)
+{
+ server_connection_t *conn = NULL;
+ int ret = -1;
+
+ conn = GF_CALLOC (1, sizeof (*conn), 0);
+ if (!conn)
+ goto out;
+
+ pthread_mutex_init (&conn->lock, NULL);
+
+ conn->fdtable = gf_fd_fdtable_alloc ();
+ if (!conn->fdtable)
+ goto out;
+
+ conn->ltable = gf_lock_table_new ();
+ if (!conn->ltable)
+ goto out;
+
+ conn->this = this;
+
+ xprt->xl_private = conn;
+
+ ret = 0;
+out:
+ if (ret)
+ destroy_server_conn_state (conn);
+
+ return conn;
+}
+
+void
+destroy_server_conn_state (server_connection_t *conn)
+{
+ if (!conn) {
+ return;
+ }
+
+ if (conn->ltable) {
+ /* TODO */
+ //FREE (conn->ltable);
+ ;
+ }
+
+ if (conn->fdtable)
+ gf_fd_fdtable_destroy (conn->fdtable);
+
+ pthread_mutex_destroy (&conn->lock);
+
+ GF_FREE (conn);
+
+ return;
+}
+
+
+void
+print_caller (char *str, int size, call_frame_t *frame)
+{
+ int filled = 0;
+ server_state_t *state = NULL;
+
+ state = CALL_STATE (frame);
+
+ filled += snprintf (str + filled, size - filled,
+ " Callid=%"PRId64", Client=%s",
+ frame->root->unique,
+ state->xprt->peerinfo.identifier);
+
+ return;
+}
+
+
+void
+server_print_resolve (char *str, int size, server_resolve_t *resolve)
+{
+ int filled = 0;
+
+ if (!resolve) {
+ snprintf (str, size, "<nul>");
+ return;
+ }
+
+ filled += snprintf (str + filled, size - filled,
+ " Resolve={");
+ if (resolve->fd_no != -1)
+ filled += snprintf (str + filled, size - filled,
+ "fd=%"PRId64",", (uint64_t) resolve->fd_no);
+ if (resolve->ino)
+ filled += snprintf (str + filled, size - filled,
+ "ino=%"PRIu64",", (uint64_t) resolve->ino);
+ if (resolve->par)
+ filled += snprintf (str + filled, size - filled,
+ "par=%"PRIu64",", (uint64_t) resolve->par);
+ if (resolve->gen)
+ filled += snprintf (str + filled, size - filled,
+ "gen=%"PRIu64",", (uint64_t) resolve->gen);
+ if (resolve->bname)
+ filled += snprintf (str + filled, size - filled,
+ "bname=%s,", resolve->bname);
+ if (resolve->path)
+ filled += snprintf (str + filled, size - filled,
+ "path=%s", resolve->path);
+
+ filled += snprintf (str + filled, size - filled, "}");
+}
+
+
+void
+server_print_loc (char *str, int size, loc_t *loc)
+{
+ int filled = 0;
+
+ if (!loc) {
+ snprintf (str, size, "<nul>");
+ return;
+ }
+
+ filled += snprintf (str + filled, size - filled,
+ " Loc={");
+
+ if (loc->path)
+ filled += snprintf (str + filled, size - filled,
+ "path=%s,", loc->path);
+ if (loc->inode)
+ filled += snprintf (str + filled, size - filled,
+ "inode=%p,", loc->inode);
+ if (loc->parent)
+ filled += snprintf (str + filled, size - filled,
+ "parent=%p", loc->parent);
+
+ filled += snprintf (str + filled, size - filled, "}");
+}
+
+
+void
+server_print_params (char *str, int size, server_state_t *state)
+{
+ int filled = 0;
+
+ filled += snprintf (str + filled, size - filled,
+ " Params={");
+
+ if (state->fd)
+ filled += snprintf (str + filled, size - filled,
+ "fd=%p,", state->fd);
+ if (state->valid)
+ filled += snprintf (str + filled, size - filled,
+ "valid=%d,", state->valid);
+ if (state->flags)
+ filled += snprintf (str + filled, size - filled,
+ "flags=%d,", state->flags);
+ if (state->wbflags)
+ filled += snprintf (str + filled, size - filled,
+ "wbflags=%d,", state->wbflags);
+ if (state->size)
+ filled += snprintf (str + filled, size - filled,
+ "size=%Zu,", state->size);
+ if (state->offset)
+ filled += snprintf (str + filled, size - filled,
+ "offset=%"PRId64",", state->offset);
+ if (state->cmd)
+ filled += snprintf (str + filled, size - filled,
+ "cmd=%d,", state->cmd);
+ if (state->type)
+ filled += snprintf (str + filled, size - filled,
+ "type=%d,", state->type);
+ if (state->name)
+ filled += snprintf (str + filled, size - filled,
+ "name=%s,", state->name);
+ if (state->mask)
+ filled += snprintf (str + filled, size - filled,
+ "mask=%d,", state->mask);
+ if (state->volume)
+ filled += snprintf (str + filled, size - filled,
+ "volume=%s,", state->volume);
+
+ filled += snprintf (str + filled, size - filled,
+ "bound_xl=%s}", state->conn->bound_xl->name);
+}
+
+int
+server_resolve_is_empty (server_resolve_t *resolve)
+{
+ if (resolve->fd_no != -1)
+ return 0;
+
+ if (resolve->ino != 0)
+ return 0;
+
+ if (resolve->gen != 0)
+ return 0;
+
+ if (resolve->par != 0)
+ return 0;
+
+ if (resolve->path != 0)
+ return 0;
+
+ if (resolve->bname != 0)
+ return 0;
+
+ return 1;
+}
+
+void
+server_print_reply (call_frame_t *frame, int op_ret, int op_errno)
+{
+ server_conf_t *conf = NULL;
+ server_state_t *state = NULL;
+ xlator_t *this = NULL;
+ char caller[512];
+ char fdstr[32];
+ char *op = "UNKNOWN";
+
+ this = frame->this;
+ conf = this->private;
+
+ if (!conf->trace)
+ return;
+
+ state = CALL_STATE (frame);
+
+ print_caller (caller, 256, frame);
+
+ switch (frame->root->type) {
+ case GF_OP_TYPE_FOP:
+ op = gf_fop_list[frame->root->op];
+ break;
+ case GF_OP_TYPE_MGMT:
+ op = gf_mgmt_list[frame->root->op];
+ break;
+ default:
+ op = "";
+ }
+
+ fdstr[0] = '\0';
+ if (state->fd)
+ snprintf (fdstr, 32, " fd=%p", state->fd);
+
+ gf_log (this->name, GF_LOG_NORMAL,
+ "%s%s => (%d, %d)%s",
+ op, caller, op_ret, op_errno, fdstr);
+}
+
+
+void
+server_print_request (call_frame_t *frame)
+{
+ server_conf_t *conf = NULL;
+ xlator_t *this = NULL;
+ server_state_t *state = NULL;
+ char resolve_vars[256];
+ char resolve2_vars[256];
+ char loc_vars[256];
+ char loc2_vars[256];
+ char other_vars[512];
+ char caller[512];
+ char *op = "UNKNOWN";
+
+ this = frame->this;
+ conf = this->private;
+
+ state = CALL_STATE (frame);
+
+ if (!conf->trace)
+ return;
+
+ memset (resolve_vars, '\0', 256);
+ memset (resolve2_vars, '\0', 256);
+ memset (loc_vars, '\0', 256);
+ memset (loc2_vars, '\0', 256);
+ memset (other_vars, '\0', 256);
+
+ print_caller (caller, 256, frame);
+
+ if (!server_resolve_is_empty (&state->resolve)) {
+ server_print_resolve (resolve_vars, 256, &state->resolve);
+ server_print_loc (loc_vars, 256, &state->loc);
+ }
+
+ if (!server_resolve_is_empty (&state->resolve2)) {
+ server_print_resolve (resolve2_vars, 256, &state->resolve2);
+ server_print_loc (loc2_vars, 256, &state->loc2);
+ }
+
+ server_print_params (other_vars, 512, state);
+
+ switch (frame->root->type) {
+ case GF_OP_TYPE_FOP:
+ op = gf_fop_list[frame->root->op];
+ break;
+ case GF_OP_TYPE_MGMT:
+ op = gf_mgmt_list[frame->root->op];
+ break;
+ default:
+ op = "";
+ break;
+ }
+
+ gf_log (this->name, GF_LOG_NORMAL,
+ "%s%s%s%s%s%s%s",
+ op, caller,
+ resolve_vars, loc_vars, resolve2_vars, loc2_vars, other_vars);
+}
generated by cgit (git 2.34.1) at 2024-04-24 15:12:51 +0000