libglusterfs: Fixed valid_ipv4_address and valid_host_name

In valid_ipv4_address(), strtok_r was ignoring consecutive dots,
and was marking any address with consecutive dots as valid. Now
such addresses will be marked as invalid.

In valid_host_name(), any name ending with any special characters
was marked as valid. Now such hostnames will be marked as invalid.

Change-Id: If9b625d9040a14bde8c176fe36e337cb483e284a
BUG: 822830
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/4579
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>

2 files changed, 55 insertions, 1 deletions

diff --git a/libglusterfs/src/common-utils.c b/libglusterfs/src/common-utils.c
index 8c50b157acf..95b8abf6969 100644
--- a/libglusterfs/src/common-utils.c
+++ b/libglusterfs/src/common-utils.c
@@ -1708,6 +1708,11 @@ valid_host_name (char *address, int length)
                 goto out;
         }
 
+        if (!isalnum (dup_addr[length - 1]) && (dup_addr[length - 1] != '*')) {
+                ret = 0;
+                goto out;
+        }
+
         /* gen-name */
         temp_str = strtok_r (dup_addr, ".", &save_ptr);
         do {
@@ -1744,8 +1749,13 @@ valid_ipv4_address (char *address, int length, gf_boolean_t wildcard_acc)
 
         tmp = gf_strdup (address);
 
-        /* To prevent cases where last character is '.' */
+        /*
+         * To prevent cases where last character is '.' and which have
+         * consecutive dots like ".." as strtok ignore consecutive
+         * delimeters.
+         */
         if (length <= 0 ||
+            (strstr (address, "..")) ||
             (!isdigit (tmp[length - 1]) && (tmp[length - 1] != '*'))) {
                 ret = 0;
                 goto out;
diff --git a/tests/bugs/bug-822830.t b/tests/bugs/bug-822830.t
new file mode 100755
index 00000000000..000d99f03cc
--- /dev/null
+++ b/tests/bugs/bug-822830.t
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../volume.rc
+
+cleanup;
+
+## Start and create a volume
+TEST glusterd;
+TEST pidof glusterd;
+TEST $CLI volume create $V0 replica 2 stripe 2 $H0:$B0/${V0}{1,2,3,4,5,6,7,8};
+
+## Verify volume is is created
+EXPECT "$V0" volinfo_field $V0 'Volume Name';
+EXPECT 'Created' volinfo_field $V0 'Status';
+
+## Start volume and verify
+TEST $CLI volume start $V0;
+EXPECT 'Started' volinfo_field $V0 'Status';
+
+## Setting nfs.rpc-auth-reject as 192.*..*
+TEST ! $CLI volume set $V0 nfs.rpc-auth-reject 192.*..*
+EXPECT '' volinfo_field $V0 'nfs.rpc-auth-reject';
+
+# Setting nfs.rpc-auth-allow as a.a.
+TEST ! $CLI volume set $V0 nfs.rpc-auth-allow a.a.
+EXPECT '' volinfo_field $V0 'nfs.rpc-auth-allow';
+
+# Setting nfs.rpc-auth-allow as a.a
+TEST $CLI volume set $V0 nfs.rpc-auth-allow a.a
+EXPECT 'a.a' volinfo_field $V0 'nfs.rpc-auth-allow';
+
+## Setting nfs.rpc-auth-reject as 192.*.*
+TEST $CLI volume set $V0 nfs.rpc-auth-reject 192.*.*
+EXPECT '192.*.*' volinfo_field $V0 'nfs.rpc-auth-reject';
+
+## Finish up
+TEST $CLI volume stop $V0;
+EXPECT 'Stopped' volinfo_field $V0 'Status';
+
+TEST $CLI volume delete $V0;
+TEST ! $CLI volume info $V0;
+
+cleanup;