cluster/dht: Create linkfile with file uid/gid

Currently, linkfile creation happens as root.

use uid/gid returned from _cbk (link/rename) to set the correct ownership of
the link files.

Also added test/dht.rc to implement common dht functions

Change-Id: Iecdcf52d89fed8286670ce430b9d19deebd27b8c
BUG: 884597
Signed-off-by: shishir gowda <sgowda@redhat.com>
Reviewed-on: http://review.gluster.org/4304
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>

1 files changed, 109 insertions, 0 deletions

diff --git a/tests/bugs/bug-884597.t b/tests/bugs/bug-884597.t
new file mode 100755
index 00000000..0d3495a6
--- /dev/null
+++ b/tests/bugs/bug-884597.t
@@ -0,0 +1,109 @@
+#!/bin/bash
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../dht.rc
+
+cleanup;
+BRICK_COUNT=3
+function uid_gid_compare()
+{
+        val=1
+
+        if [ "$1" == "$3" ]
+        then
+                if [ "$2" == "$4" ]
+                        then
+                                val=0
+                fi
+        fi
+        echo "$val"
+}
+
+
+TEST glusterd
+TEST pidof glusterd
+
+TEST $CLI volume create $V0 $H0:$B0/${V0}0 $H0:$B0/${V0}1 $H0:$B0/${V0}2
+TEST $CLI volume start $V0
+
+## Mount FUSE
+TEST glusterfs --attribute-timeout=0 --entry-timeout=0 -s $H0 --volfile-id $V0 $M0;
+
+i=1
+NEW_UID=36
+NEW_GID=36
+
+TEST touch $M0/$i
+
+chown $NEW_UID:$NEW_GID $M0/$i
+## rename till file gets a linkfile
+
+while [ $i -ne 0 ]
+do
+        TEST mv $M0/$i $M0/$(( $i+1 ))
+        let i++
+        file_has_linkfile $i
+        has_link=$?
+        if [ $has_link -eq 2 ]
+        then
+                break;
+        fi
+done
+
+get_hashed_brick $i
+cached=$?
+
+# check if uid/gid on linkfile is created with correct uid/gid
+BACKEND_UID=`stat --printf=%u $B0/${V0}$cached/$i`;
+BACKEND_GID=`stat --printf=%g $B0/${V0}$cached/$i`;
+
+EXPECT "0" uid_gid_compare $NEW_UID $NEW_GID $BACKEND_UID $BACKEND_GID
+
+# remove linkfile from backend, and trigger a lookup heal. uid/gid should match
+rm -rf $B0/${V0}$cached/$i
+
+# without a unmount, we are not able to trigger a lookup based heal
+
+TEST umount $M0
+
+## Mount FUSE
+TEST glusterfs --attribute-timeout=0 --entry-timeout=0 -s $H0 --volfile-id $V0 $M0;
+
+lookup=`ls -l $M0/$i 2>/dev/null`
+
+# check if uid/gid on linkfile is created with correct uid/gid
+BACKEND_UID=`stat --printf=%u $B0/${V0}$cached/$i`;
+BACKEND_GID=`stat --printf=%g $B0/${V0}$cached/$i`;
+
+EXPECT "0" uid_gid_compare $NEW_UID $NEW_GID $BACKEND_UID $BACKEND_GID
+# create hardlinks. Make sure a linkfile gets created
+
+i=1
+NEW_UID=36
+NEW_GID=36
+
+TEST touch $M0/file
+chown $NEW_UID:$NEW_GID $M0/file;
+
+## ln till file gets a linkfile
+
+while [ $i -ne 0 ]
+do
+        TEST ln $M0/file $M0/link$i
+
+        file_has_linkfile link$i
+        has_link=$?
+        if [ $has_link -eq 2 ]
+        then
+                break;
+        fi
+        let i++
+done
+
+get_hashed_brick link$i
+cached=$?
+
+# check if uid/gid on linkfile is created with correct uid/gid
+BACKEND_UID=`stat --printf=%u $B0/${V0}$cached/link$i`;
+BACKEND_GID=`stat --printf=%g $B0/${V0}$cached/link$i`;
+
+EXPECT "0" uid_gid_compare $NEW_UID $NEW_GID $BACKEND_UID $BACKEND_GID