rpc/server: add anonuid and anongid options for root-squash

Introduce new options to modify the behaviour of server.root-squash.
With server.anonuid and server.anongid the uid/gid can be specified and
the root user (uid=0 and gid=0) will be mapped to the given uid/gid
instead of nfsnobody (uid=65534 and gid=65534).

Many thanks to Vikhyat Umrao for writing the majority of the test-case!

Change-Id: I6379a3d2ef52b9b9707f2f6f0529657580c8d779
BUG: 1043886
CC: Vikhyat Umrao <vumrao@redhat.com>
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/6546
Reviewed-by: Santosh Pradhan <spradhan@redhat.com>
Reviewed-by: Vikhyat Umrao <vumrao@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

1 files changed, 55 insertions, 0 deletions

diff --git a/tests/bugs/bug-1043886.t b/tests/bugs/bug-1043886.t
new file mode 100755
index 000000000..fb7ecb194
--- /dev/null
+++ b/tests/bugs/bug-1043886.t
@@ -0,0 +1,55 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../nfs.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume create $V0 replica 2 $H0:$B0/${V0}{1,2};
+TEST $CLI volume start $V0
+
+sleep 2;
+## Mount FUSE with caching disabled
+TEST glusterfs --entry-timeout=0 --attribute-timeout=0 -s $H0 --volfile-id $V0 $M0;
+
+EXPECT_WITHIN 20 "1" is_nfs_export_available;
+
+## Mount volume as NFS export
+TEST mount -t nfs -o vers=3,nolock $H0:/$V0 $N0;
+
+# just a random uid/gid
+uid=22162
+gid=5845
+
+mkdir $N0/other;
+chown $uid:$gid $N0/other;
+
+TEST $CLI volume set $V0 server.root-squash on;
+TEST $CLI volume set $V0 server.anonuid $uid;
+TEST $CLI volume set $V0 server.anongid $gid;
+
+sleep 2;
+
+EXPECT_WITHIN 20 "1" is_nfs_export_available;
+
+# create files and directories in the root of the glusterfs and nfs mount
+# which is owned by root and hence the right behavior is getting EACCESS
+# as the fops are executed as nfsnobody.
+touch $M0/file 2>/dev/null;
+TEST [ $? -ne 0 ]
+mkdir $M0/dir 2>/dev/null;
+TEST [ $? -ne 0 ]
+
+# Here files and directories should be getting created as other directory is owned
+# by tmp_user as server.anonuid and server.anongid have the value of tmp_user uid and gid
+TEST touch $M0/other/file 2>/dev/null;
+TEST [ "$(stat -c %u:%g $N0/other/file)" = "$uid:$gid" ];
+TEST mkdir $M0/other/dir 2>/dev/null;
+TEST [ "$(stat -c %u:%g $N0/other/dir)" = "$uid:$gid" ];
+
+TEST $CLI volume stop $V0;
+TEST $CLI volume delete $V0;
+
+cleanup;