rpc: disable root-squash dynamically upon volume set command

Change-Id: I2ba9ca339ffbe07cb74833165a46a941225b623d
BUG: 927616
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/4722
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

2 files changed, 68 insertions, 2 deletions

diff --git a/rpc/rpc-lib/src/rpcsvc-auth.c b/rpc/rpc-lib/src/rpcsvc-auth.c
index 907ae1ec9af..04b66091f73 100644
--- a/rpc/rpc-lib/src/rpcsvc-auth.c
+++ b/rpc/rpc-lib/src/rpcsvc-auth.c
@@ -206,11 +206,16 @@ rpcsvc_set_allow_insecure (rpcsvc_t *svc, dict_t *options)
 int
 rpcsvc_set_root_squash (rpcsvc_t *svc, dict_t *options)
 {
+        int  ret = -1;
+
         GF_ASSERT (svc);
         GF_ASSERT (options);
 
-        if (dict_get_str_boolean (options, "root-squash", 0))
-                svc->root_squash = _gf_true;
+        ret = dict_get_str_boolean (options, "root-squash", 0);
+        if (ret != -1)
+                svc->root_squash = ret;
+        else
+                svc->root_squash = _gf_false;
 
         if (svc->root_squash)
                 gf_log (GF_RPCSVC, GF_LOG_DEBUG, "root squashing enabled ");
diff --git a/tests/bugs/bug-927616.t b/tests/bugs/bug-927616.t
new file mode 100755
index 00000000000..22b20aff2df
--- /dev/null
+++ b/tests/bugs/bug-927616.t
@@ -0,0 +1,61 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume create $V0 replica 2 $H0:$B0/${V0}{1,2};
+TEST $CLI volume set $V0 performance.open-behind off;
+TEST $CLI volume start $V0
+
+sleep 1;
+## Mount FUSE with caching disabled
+TEST glusterfs --entry-timeout=0 --attribute-timeout=0 -s $H0 --volfile-id $V0 $M0;
+
+sleep 1;
+
+TEST mount -t nfs -o vers=3,nolock $H0:/$V0 $N0;
+
+TEST mkdir $M0/dir;
+
+mkdir $M0/other;
+cp /etc/passwd $M0/;
+cp $M0/passwd $M0/file;
+chmod 600 $M0/file;
+
+chown -R nfsnobody:nfsnobody $M0/dir;
+
+TEST $CLI volume set $V0 server.root-squash on;
+
+sleep 1;
+
+# tests should fail.
+touch $M0/foo 2>/dev/null;
+TEST [ $? -ne 0 ]
+touch $N0/foo 2>/dev/null;
+TEST [ $? -ne 0 ]
+mkdir $M0/new 2>/dev/null;
+TEST [ $? -ne 0 ]
+mkdir $N0/new 2>/dev/null;
+TEST [ $? -ne 0 ]
+
+TEST $CLI volume set $V0 server.root-squash off;
+
+sleep 1;
+
+# tests should pass.
+touch $M0/foo 2>/dev/null;
+TEST [ $? -eq 0 ]
+touch $N0/bar 2>/dev/null;
+TEST [ $? -eq 0 ]
+mkdir $M0/new 2>/dev/null;
+TEST [ $? -eq 0 ]
+mkdir $N0/old 2>/dev/null;
+TEST [ $? -eq 0 ]
+
+TEST $CLI volume stop $V0;
+TEST $CLI volume delete $V0;
+
+cleanup;