shadow/tests/newgidmap/02_newgidmap_relaxed_gid_check/newgidmap.test
2021-02-08 13:32:18 +01:00

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#!/bin/sh
set -e
cd $(dirname $0)
. ../../common/config.sh
. ../../common/log.sh
log_start "$0" "setup uid mapping when primary groups don't match"
save_config
unpriv_userns=$( sysctl -n kernel.unprivileged_userns_clone )
# restore the files on exit
trap 'log_status "$0" "FAILURE"; restore_config; \
rm -rf /tmp/test-gidmap; \
sysctl -q kernel.unprivileged_userns_clone=$unpriv_userns' 0
change_config
sysctl -q kernel.unprivileged_userns_clone=1
echo -n "Create world writable tmp directory..."
mkdir -m 0777 /tmp/test-gidmap
echo "OK"
echo -n "setup gidmapping... "
runuser foo -g foo -c "unshare -U sleep 10 & pid=\$!; \
newgidmap \$pid 0 1000 1 1 1000000 1000; ret=\$?; \
cat /proc/\$pid/gid_map >/tmp/test-gidmap/gid_map;
kill \$pid; exit \$ret"
../../common/compare_file.pl /tmp/test-gidmap/gid_map data/gid_map
echo "OK"
echo -n "setup gidmapping with different primary group... "
runuser foo -g bar -c "unshare -U sleep 10 & pid=\$!; \
newgidmap \$pid 0 1001 1 1 1000000 1000; ret=\$?; \
cat /proc/\$pid/gid_map >/tmp/test-gidmap/gid_map;
kill \$pid; exit \$ret"
../../common/compare_file.pl /tmp/test-gidmap/gid_map data/gid_map.bar
echo "OK"
log_status "$0" "SUCCESS"
sysctl -q kernel.unprivileged_userns_clone=$unpriv_userns
rm -rf /tmp/test-gidmap;
restore_config
trap '' 0