1 files changed, 109 insertions, 0 deletions
diff --git a/tests/bugs/shard/bug-1251824.t b/tests/bugs/shard/bug-1251824.t
new file mode 100644
index 00000000000..d81685d01de
--- /dev/null
+++ b/tests/bugs/shard/bug-1251824.t
@@ -0,0 +1,109 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+. $(dirname $0)/../../common-utils.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume create $V0 replica 2 $H0:$B0/${V0}{0,1,2,3}
+TEST $CLI volume set $V0 features.shard on
+TEST $CLI volume set $V0 features.shard-block-size 4MB
+TEST $CLI volume start $V0
+
+TEST glusterfs --volfile-id=$V0 --volfile-server=$H0 $M0
+TEST useradd -M test_user 2>/dev/null
+
+# Create 3 files as root.
+TEST touch $M0/foo
+TEST touch $M0/bar
+TEST touch $M0/baz
+TEST touch $M0/qux
+TEST mkdir $M0/dir
+
+# Change ownership to non-root on foo and bar.
+TEST chown test_user:test_user $M0/foo
+TEST chown test_user:test_user $M0/bar
+
+# Write 6M of data on foo as non-root, 2M overflowing into block-1.
+TEST run_cmd_as_user test_user "dd if=/dev/zero of=$M0/foo bs=1M count=6"
+
+# Ensure owner and group are root on the block-1 shard.
+gfid_foo=$(get_gfid_string $M0/foo)
+
+EXPECT "root" echo `find $B0 -name $gfid_foo.1 | xargs stat -c %U`
+EXPECT "root" echo `find $B0 -name $gfid_foo.1 | xargs stat -c %G`
+
+#Ensure /.shard is owned by root.
+EXPECT "root" echo `find $B0/${V0}0 -name .shard | xargs stat -c %U`
+EXPECT "root" echo `find $B0/${V0}0 -name .shard | xargs stat -c %G`
+EXPECT "root" echo `find $B0/${V0}1 -name .shard | xargs stat -c %U`
+EXPECT "root" echo `find $B0/${V0}1 -name .shard | xargs stat -c %G`
+EXPECT "root" echo `find $B0/${V0}2 -name .shard | xargs stat -c %U`
+EXPECT "root" echo `find $B0/${V0}2 -name .shard | xargs stat -c %G`
+EXPECT "root" echo `find $B0/${V0}3 -name .shard | xargs stat -c %U`
+EXPECT "root" echo `find $B0/${V0}3 -name .shard | xargs stat -c %G`
+
+# Write 6M of data on bar as root.
+TEST dd if=/dev/zero of=$M0/bar bs=1M count=6
+
+# Ensure owner and group are root on the block-1 shard.
+gfid_bar=$(get_gfid_string $M0/bar)
+
+EXPECT "root" echo `find $B0 -name $gfid_bar.1 | xargs stat -c %U`
+EXPECT "root" echo `find $B0 -name $gfid_bar.1 | xargs stat -c %G`
+
+# Write 6M of data on baz as root.
+TEST dd if=/dev/zero of=$M0/baz bs=1M count=6
+
+gfid_baz=$(get_gfid_string $M0/baz)
+
+# Ensure owner and group are root on the block-1 shard.
+EXPECT "root" echo `find $B0 -name $gfid_baz.1 | xargs stat -c %U`
+EXPECT "root" echo `find $B0 -name $gfid_baz.1 | xargs stat -c %G`
+
+# Test to ensure unlink from an unauthorized user does not lead to only
+# the shards under /.shard getting unlinked while that on the base file fails
+# with EPERM/ACCES.
+
+TEST ! run_cmd_as_user test_user "unlink $M0/baz"
+TEST find $B0/*/.shard/$gfid_baz.1
+
+# Test to ensure rename of a file where the dest file exists and is sharded,
+# from an unauthorized user does not lead to only the shards under /.shard
+# getting unlinked while that on the base file fails with EPERM/ACCES.
+
+TEST ! run_cmd_as_user test_user "mv -f $M0/qux $M0/baz"
+TEST find $B0/*/.shard/$gfid_baz.1
+TEST stat $M0/qux
+
+# Shard translator executes steps in the following order while doing a truncate
+# to a lower size:
+# 1) unlinking shards under /.shard first with frame->root->{uid,gid} being 0,
+# 2) truncate the original file by the right amount.
+# The following two tests are towards ensuring that truncate attempt from an
+# unauthorised user doesn't result in only the shards under /.shard getting
+# removed (since they're being performed as root) while step 2) above fails,
+# leaving the file in an inconsistent state.
+
+TEST ! run_cmd_as_user test_user "truncate -s 1M $M0/baz"
+TEST find $B0/*/.shard/$gfid_baz.1
+
+# Perform a cp as non-root user. This should trigger readv() which will trigger
+# reads on first shard of "foo" under /.shard, and this must not fail if shard
+# translator correctly sets frame->root->uid,gid to 0 before reading off the
+# first shard, since it's owned by root.
+TEST chown test_user:test_user $M0/dir
+TEST run_cmd_as_user test_user "cp $M0/foo $M0/dir/quux"
+
+md5sum_foo=$(md5sum $M0/foo | awk '{print $1}')
+EXPECT "$md5sum_foo" echo `md5sum $M0/dir/quux | awk '{print $1}'`
+
+userdel test_user
+
+TEST $CLI volume stop $V0
+TEST $CLI volume delete $V0
+
+cleanup;