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authorKaushik BV <kaushikbv@gluster.com>2011-04-21 06:55:46 +0000
committerAnand Avati <avati@gluster.com>2011-04-22 04:05:20 -0700
commit5e59de561e49e8f401cf0786635c05c31cc3dfb8 (patch)
tree2ff67ff1be46351d73b6110d0f398ced54f37ec4 /xlators/mgmt
parent2017d5ed79a0843262695394bfff61968902e9ef (diff)
mgmt/glusterd: fix up the buffer sizes to accomodate a correct estimate of sizes of the snprintf invocations, and errout if not feasible
Signed-off-by: Kaushik BV <kaushikbv@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2561 (gsyncd command's must be preconfigured) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2561
Diffstat (limited to 'xlators/mgmt')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd.c85
1 files changed, 69 insertions, 16 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd.c b/xlators/mgmt/glusterd/src/glusterd.c
index b2cf345c714..c7c5088db2e 100644
--- a/xlators/mgmt/glusterd/src/glusterd.c
+++ b/xlators/mgmt/glusterd/src/glusterd.c
@@ -241,6 +241,7 @@ out:
*/
extern int mkdir_if_missing (char *path);
+#if SYNCDAEMON_COMPILE
static int
glusterd_check_gsync_present ()
{
@@ -255,7 +256,7 @@ glusterd_check_gsync_present ()
goto out;
}
- snprintf (cmd, PATH_MAX, GSYNCD_PREFIX"/gsyncd --version");
+ snprintf (cmd, sizeof(cmd), GSYNCD_PREFIX"/gsyncd --version");
if (!(in = popen(cmd, "r"))) {
gf_log ("", GF_LOG_INFO, "geo-replication module not installed"
@@ -270,11 +271,13 @@ glusterd_check_gsync_present ()
ret = -1;
goto out;
}
+ } else {
+ ret = -1;
+ goto out;
}
ret = 0;
out:
- if (in)
- if (-1 == pclose (in)) {
+ if ((in)&& (-1 == pclose (in))) {
ret = -1;
gf_log ("", GF_LOG_INFO, "geo-replication module not"
" installed in the system");
@@ -286,16 +289,20 @@ glusterd_check_gsync_present ()
}
int
-configure_syncaemon (glusterd_conf_t *conf)
+glusterd_crt_georep_folders (char *georepdir, glusterd_conf_t *conf)
{
int ret = 0;
-#if SYNCDAEMON_COMPILE
- char georepdir[PATH_MAX] = {0,};
- char cmd[4096] = {0,};
- char volid[64] = {0,};
- int blen = 0;
- setenv ("_GLUSTERD_CALLED_", "1", 1);
+ GF_ASSERT (georepdir);
+ GF_ASSERT (conf);
+
+ if (strlen (conf->workdir)+2 > PATH_MAX-strlen(GEOREP)) {
+ ret = -1;
+ gf_log ("glusterd", GF_LOG_CRITICAL,
+ "Unable to create "GEOREP" directory %s",
+ georepdir);
+ goto out;
+ }
snprintf (georepdir, PATH_MAX, "%s/"GEOREP, conf->workdir);
ret = mkdir_if_missing (georepdir);
@@ -303,20 +310,60 @@ configure_syncaemon (glusterd_conf_t *conf)
gf_log ("glusterd", GF_LOG_CRITICAL,
"Unable to create "GEOREP" directory %s",
georepdir);
- return -1;
+ goto out;
+ }
+
+ if (strlen (DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP) >= PATH_MAX) {
+ ret = -1;
+ gf_log ("glusterd", GF_LOG_CRITICAL,
+ "Unable to create "GEOREP" directory %s",
+ georepdir);
+ goto out;
}
ret = mkdir_if_missing (DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP);
if (-1 == ret) {
gf_log ("glusterd", GF_LOG_CRITICAL,
"Unable to create "GEOREP" log directory");
- return -1;
+ goto out;
+ }
+
+ if (strlen(DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP"-slaves") >= PATH_MAX) {
+ ret = -1;
+ gf_log ("glusterd", GF_LOG_CRITICAL,
+ "Unable to create "GEOREP" directory %s",
+ georepdir);
+ goto out;
}
ret = mkdir_if_missing (DEFAULT_LOG_FILE_DIRECTORY"/"GEOREP"-slaves");
if (-1 == ret) {
gf_log ("glusterd", GF_LOG_CRITICAL,
"Unable to create "GEOREP" slave log directory");
- return -1;
+ goto out;
+ }
+ ret = 0;
+ out:
+ gf_log("", GF_LOG_DEBUG, "Returning %d", ret);
+ return ret;
+
+}
+#endif
+
+static int
+configure_syncdaemon (glusterd_conf_t *conf)
+{
+ int ret = 0;
+#if SYNCDAEMON_COMPILE
+ char georepdir[PATH_MAX] = {0,};
+ char cmd[2*PATH_MAX + 1024] = {0,};
+ char volid[64] = {0,};
+ int blen = 0;
+
+ ret = setenv ("_GLUSTERD_CALLED_", "1", 1);
+ if (ret < 0) {
+ ret = 0;
+ goto out;
}
+
ret = glusterd_check_gsync_present ();
if (-1 == ret) {
ret = 0;
@@ -324,8 +371,14 @@ configure_syncaemon (glusterd_conf_t *conf)
}
- blen = snprintf (cmd, PATH_MAX, GSYNCD_PREFIX"/gsyncd -c %s/"GSYNC_CONF
- " --config-set-rx ", conf->workdir);
+ glusterd_crt_georep_folders (georepdir, conf);
+ if (ret) {
+ ret = 0;
+ goto out;
+ }
+
+ blen = snprintf (cmd, sizeof(cmd), GSYNCD_PREFIX"/gsyncd -c %s/"
+ GSYNC_CONF " --config-set-rx ", conf->workdir);
/* Calling out to gsyncd to configure it:
* - use system(3) for options with multi-word values as system
@@ -633,7 +686,7 @@ init (xlator_t *this)
if (ret < 0)
goto out;
- ret = configure_syncaemon (conf);
+ ret = configure_syncdaemon (conf);
if (ret)
goto out;