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Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-utils.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.c152
1 files changed, 87 insertions, 65 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index feb81d8de80..987615a573d 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -735,8 +735,8 @@ glusterd_resolve_brick (glusterd_brickinfo_t *brickinfo)
}
int32_t
-glusterd_brickinfo_from_brick (char *brick,
- glusterd_brickinfo_t **brickinfo)
+glusterd_brickinfo_new_from_brick (char *brick,
+ glusterd_brickinfo_t **brickinfo)
{
int32_t ret = -1;
glusterd_brickinfo_t *new_brickinfo = NULL;
@@ -780,11 +780,69 @@ out:
return ret;
}
+static gf_boolean_t
+_is_prefix (char *str1, char *str2)
+{
+ GF_ASSERT (str1);
+ GF_ASSERT (str2);
+
+ int i = 0;
+ int small_len = 0;
+ gf_boolean_t prefix = _gf_true;
+
+ small_len = min (strlen (str1), strlen (str2));
+ for (i = 0; i < small_len; i++) {
+ if (str1[i] != str2[i]) {
+ prefix = _gf_false;
+ break;
+ }
+
+ }
+
+ 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+1] = {0};
+ char tmp_brickpath[PATH_MAX+1] = {0};
+
+ priv = THIS->private;
+
+ strncpy (tmp_path, path, PATH_MAX);
+ /* path may not yet exist */
+ if (!realpath (path, tmp_path) && (errno != ENOENT))
+ goto out;
+
+ list_for_each_entry (volinfo, &priv->volumes, vol_list) {
+ list_for_each_entry (brickinfo, &volinfo->bricks, brick_list) {
+ if (uuid_compare (uuid, brickinfo->uuid))
+ continue;
+
+ if (!realpath (brickinfo->path, tmp_brickpath))
+ goto out;
+
+ if (_is_prefix (tmp_brickpath, tmp_path))
+ goto out;
+ }
+ }
+ available = _gf_true;
+out:
+ return available;
+}
+
int32_t
glusterd_volume_brickinfo_get (uuid_t uuid, char *hostname, char *path,
glusterd_volinfo_t *volinfo,
- glusterd_brickinfo_t **brickinfo,
- gf_path_match_t path_match)
+ glusterd_brickinfo_t **brickinfo)
{
glusterd_brickinfo_t *brickiter = NULL;
uuid_t peer_uuid = {0};
@@ -800,34 +858,19 @@ glusterd_volume_brickinfo_get (uuid_t uuid, char *hostname, char *path,
ret = -1;
list_for_each_entry (brickiter, &volinfo->bricks, brick_list) {
- if (uuid_is_null (brickiter->uuid) &&
- glusterd_resolve_brick (brickiter))
+ if ((uuid_is_null (brickiter->uuid)) &&
+ (glusterd_resolve_brick (brickiter) != 0))
goto out;
if (uuid_compare (peer_uuid, brickiter->uuid))
continue;
- if (!strcmp (brickiter->path, path)) {
+ if (strcmp (brickiter->path, path) == 0) {
gf_log (THIS->name, GF_LOG_INFO, "Found brick");
ret = 0;
if (brickinfo)
*brickinfo = brickiter;
break;
}
-
- if (path_match != GF_PATH_PARTIAL)
- continue;
-
-#ifdef GF_LINUX_HOST_OS
- if (!fnmatch (path, brickiter->path, FNM_LEADING_DIR) ||
- !fnmatch (brickiter->path, path, FNM_LEADING_DIR)) {
- gf_log (THIS->name, GF_LOG_ERROR,
- "paths %s and %s are recursive",
- path, brickiter->path);
- *brickinfo = brickiter;
- ret = 0;
- break;
- }
-#endif
}
out:
@@ -838,40 +881,23 @@ out:
int32_t
glusterd_volume_brickinfo_get_by_brick (char *brick,
glusterd_volinfo_t *volinfo,
- glusterd_brickinfo_t **brickinfo,
- gf_path_match_t path_match)
+ glusterd_brickinfo_t **brickinfo)
{
int32_t ret = -1;
- char *hostname = NULL;
- char *path = NULL;
- char *tmp_host = NULL;
- char *tmp_path = NULL;
+ glusterd_brickinfo_t *tmp_brickinfo = NULL;
GF_ASSERT (brick);
GF_ASSERT (volinfo);
- gf_log ("", GF_LOG_INFO, "brick: %s", brick);
-
- tmp_host = gf_strdup (brick);
- if (tmp_host)
- get_host_name (tmp_host, &hostname);
- tmp_path = gf_strdup (brick);
- if (tmp_path)
- get_path_name (tmp_path, &path);
-
- if (!hostname || !path) {
- gf_log ("", GF_LOG_ERROR,
- "brick %s is not of form <HOSTNAME>:<export-dir>",
- brick);
- ret = -1;
+ ret = glusterd_brickinfo_new_from_brick (brick, &tmp_brickinfo);
+ if (ret)
goto out;
- }
- ret = glusterd_volume_brickinfo_get (NULL, hostname, path, volinfo,
- brickinfo, path_match);
+ ret = glusterd_volume_brickinfo_get (NULL, tmp_brickinfo->hostname,
+ tmp_brickinfo->path, volinfo,
+ brickinfo);
+ (void) glusterd_brickinfo_delete (tmp_brickinfo);
out:
- GF_FREE (tmp_host);
- GF_FREE (tmp_path);
gf_log ("", GF_LOG_DEBUG, "Returning %d", ret);
return ret;
}
@@ -885,7 +911,7 @@ glusterd_is_brick_decommissioned (glusterd_volinfo_t *volinfo, char *hostname,
int ret = -1;
ret = glusterd_volume_brickinfo_get (NULL, hostname, path, volinfo,
- &brickinfo, GF_PATH_COMPLETE);
+ &brickinfo);
if (ret)
goto out;
decommissioned = brickinfo->decommissioned;
@@ -2289,7 +2315,7 @@ glusterd_import_volinfo (dict_t *vols, int count,
if (ret)
goto out;
- ret = glusterd_brickinfo_from_brick (src_brick,
+ ret = glusterd_brickinfo_new_from_brick (src_brick,
&new_volinfo->src_brick);
if (ret) {
gf_log ("", GF_LOG_ERROR, "Unable to create"
@@ -2304,7 +2330,7 @@ glusterd_import_volinfo (dict_t *vols, int count,
if (ret)
goto out;
- ret = glusterd_brickinfo_from_brick (dst_brick,
+ ret = glusterd_brickinfo_new_from_brick (dst_brick,
&new_volinfo->dst_brick);
if (ret) {
gf_log ("", GF_LOG_ERROR, "Unable to create"
@@ -2366,8 +2392,7 @@ glusterd_volinfo_copy_brick_portinfo (glusterd_volinfo_t *new_volinfo,
ret = glusterd_volume_brickinfo_get (new_brickinfo->uuid,
new_brickinfo->hostname,
new_brickinfo->path,
- old_volinfo, &old_brickinfo,
- GF_PATH_COMPLETE);
+ old_volinfo, &old_brickinfo);
if ((0 == ret) && glusterd_is_brick_started (old_brickinfo)) {
new_brickinfo->port = old_brickinfo->port;
}
@@ -2393,8 +2418,7 @@ glusterd_volinfo_stop_stale_bricks (glusterd_volinfo_t *new_volinfo,
ret = glusterd_volume_brickinfo_get (old_brickinfo->uuid,
old_brickinfo->hostname,
old_brickinfo->path,
- new_volinfo, &new_brickinfo,
- GF_PATH_COMPLETE);
+ new_volinfo, &new_brickinfo);
if (ret) {
ret = glusterd_brick_stop (old_volinfo, old_brickinfo);
if (ret)
@@ -3373,9 +3397,9 @@ glusterd_brickinfo_get (uuid_t uuid, char *hostname, char *path,
list_for_each_entry (volinfo, &priv->volumes, vol_list) {
ret = glusterd_volume_brickinfo_get (uuid, hostname, path,
- volinfo, brickinfo,
- GF_PATH_COMPLETE);
- if (!ret)
+ volinfo, brickinfo);
+ if (ret == 0)
+ /*Found*/
goto out;
}
out:
@@ -4250,7 +4274,6 @@ glusterd_new_brick_validate (char *brick, glusterd_brickinfo_t *brickinfo,
char *op_errstr, size_t len)
{
glusterd_brickinfo_t *newbrickinfo = NULL;
- glusterd_brickinfo_t *tmpbrkinfo = NULL;
int ret = -1;
gf_boolean_t is_allocated = _gf_false;
glusterd_peerinfo_t *peerinfo = NULL;
@@ -4267,7 +4290,7 @@ glusterd_new_brick_validate (char *brick, glusterd_brickinfo_t *brickinfo,
GF_ASSERT (op_errstr);
if (!brickinfo) {
- ret = glusterd_brickinfo_from_brick (brick, &newbrickinfo);
+ ret = glusterd_brickinfo_new_from_brick (brick, &newbrickinfo);
if (ret)
goto out;
is_allocated = _gf_true;
@@ -4297,11 +4320,10 @@ glusterd_new_brick_validate (char *brick, glusterd_brickinfo_t *brickinfo,
goto out;
}
brick_validation:
- ret = glusterd_brickinfo_get (newbrickinfo->uuid,
- newbrickinfo->hostname,
- newbrickinfo->path, &tmpbrkinfo);
- if (!ret) {
- snprintf(op_errstr, len, "Brick: %s already in use",
+ 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);
gf_log (THIS->name, GF_LOG_ERROR, "%s", op_errstr);
ret = -1;
@@ -4836,7 +4858,7 @@ glusterd_delete_brick (glusterd_volinfo_t* volinfo,
ret = glusterd_volume_brickinfo_get (brickinfo->uuid,
brickinfo->hostname,
brickinfo->path, volinfo,
- NULL, GF_PATH_COMPLETE);
+ NULL);
GF_ASSERT (0 == ret);
#endif
glusterd_delete_volfile (volinfo, brickinfo);
generated by cgit (git 2.34.1) at 2025-11-04 03:16:51 +0000