1#!/bin/ksh -p 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License (the "License"). 7# You may not use this file except in compliance with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or https://opensource.org/licenses/CDDL-1.0. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21# 22 23. $STF_SUITE/tests/functional/idmap_mount/idmap_mount_common.kshlib 24 25# 26# 27# DESCRIPTION: 28# Test setgid bit is set properly on the idmapped mount 29# in a user namespace. 30# 31# STRATEGY: 32# 1. Create folder "idmap_test", set gid bit on it 33# 2. Idmap the folder to "idmap_dest" 34# 3. Create file and folder in the idmapped folder in the user 35# namespace having the same idmap info 36# 4. Verify the gid bit of the file and folder is set 37# 38 39verify_runnable "global" 40 41export WORKDIR=$TESTDIR/idmap_test 42export IDMAPDIR=$TESTDIR/idmap_dest 43 44function cleanup 45{ 46 kill -TERM ${unshared_pid} 47 log_must rm -rf $IDMAPDIR/* 48 if mountpoint $IDMAPDIR; then 49 log_must umount $IDMAPDIR 50 fi 51 log_must rm -rf $IDMAPDIR $WORKDIR 52} 53 54log_onexit cleanup 55 56if ! idmap_util -c $TESTDIR; then 57 log_unsupported "Idmap mount not supported." 58fi 59 60log_must mkdir -p $WORKDIR 61log_must mkdir -p $IDMAPDIR 62 63log_must chown $UID1:$GID1 $WORKDIR 64# set gid bit 65log_must chmod 2755 $WORKDIR 66log_must idmap_util -m "u:${UID1}:${UID2}:1" -m "g:${GID1}:${GID2}:1" $WORKDIR $IDMAPDIR 67log_must test -g $IDMAPDIR 68 69# Create a user namespace with the same idmapping 70unshare -Urm echo test 71if [ "$?" -ne "0" ]; then 72 log_unsupported "Failed to create user namespace" 73fi 74unshare -Um /usr/bin/sleep 2h & 75unshared_pid=$! 76if [ "$?" -ne "0" ]; then 77 log_unsupported "Failed to create user namespace" 78fi 79# wait for userns to be ready 80sleep 1 81echo "${UID1} ${UID2} 1" > /proc/$unshared_pid/uid_map 82if [ "$?" -ne "0" ]; then 83 log_unsupported "Failed to write to uid_map" 84fi 85echo "${GID1} ${GID2} 1" > /proc/$unshared_pid/gid_map 86if [ "$?" -ne "0" ]; then 87 log_unsupported "Failed to write to gid_map" 88fi 89 90NSENTER="nsenter -t $unshared_pid --all -S ${UID1} -G ${GID1}" 91 92# gid bit can be set on the file 93log_must $NSENTER touch $IDMAPDIR/file1 94log_must $NSENTER chmod 2654 $IDMAPDIR/file1 95log_must test -g $WORKDIR/file1 96log_must test -g $IDMAPDIR/file1 97log_must test "$UID1 $GID1" = "$($NSENTER stat -c '%u %g' $IDMAPDIR/file1)" 98 99# gid bit is carried over to new folder 100log_must $NSENTER mkdir $IDMAPDIR/subdir 101log_must test -g $WORKDIR/subdir 102log_must test -g $IDMAPDIR/subdir 103log_must test "$UID1 $GID1" = "$($NSENTER stat -c '%u %g' $IDMAPDIR/subdir)" 104 105log_pass "Verification of setting gid bit in userns is successful." 106 107