[LTP] [PATCH 4/4] ima_{conditionals, measurements}.sh: Use 'su' instead of 'sudo'

[Petr Vorel]

'su' is simpler than 'sudo' (fewer configuration files, less libraries)
and it's usually installed (part of util-linux or busybox). This also
helps to test with initramfs based rapido-linux.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
https://github.com/rapido-linux/rapido

 .../kernel/security/integrity/ima/tests/ima_conditionals.sh   | 4 ++--
 .../kernel/security/integrity/ima/tests/ima_measurements.sh   | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/testcases/kernel/security/integrity/ima/tests/ima_conditionals.sh b/testcases/kernel/security/integrity/ima/tests/ima_conditionals.sh
index f4ee79b2bc..4eca0e88b9 100755
--- a/testcases/kernel/security/integrity/ima/tests/ima_conditionals.sh
+++ b/testcases/kernel/security/integrity/ima/tests/ima_conditionals.sh
@@ -9,7 +9,7 @@
 # gid and fgroup options test kernel commit 40224c41661b ("ima: add gid
 # support") from v5.16.
 
-TST_NEEDS_CMDS="cat chgrp chown id sg sudo useradd userdel"
+TST_NEEDS_CMDS="cat chgrp chown id sg su useradd userdel"
 TST_SETUP="setup"
 TST_TESTFUNC="test"
 REQUIRE_TMP_USER=1
@@ -82,7 +82,7 @@ test()
 		sh -c "$cmd"
 		;;
 	gid) sg $IMA_USER "sh -c '$cmd'";;
-	uid) sudo -n -u $IMA_USER sh -c "$cmd";;
+	uid) su - $IMA_USER sh -c "$cmd";;
 	esac
 
 	ima_check $test_file
diff --git a/testcases/kernel/security/integrity/ima/tests/ima_measurements.sh b/testcases/kernel/security/integrity/ima/tests/ima_measurements.sh
index e92f3efb95..404b63d99f 100755
--- a/testcases/kernel/security/integrity/ima/tests/ima_measurements.sh
+++ b/testcases/kernel/security/integrity/ima/tests/ima_measurements.sh
@@ -75,7 +75,7 @@ test3()
 
 	# Default policy does not measure user files
 	tst_res TINFO "verify not measuring user files"
-	tst_check_cmds sudo || return
+	tst_check_cmds su || return
 
 	if [ "$IMA_MISSING_POLICY_CONTENT" = 1 ]; then
 		tst_res TCONF "test requires specific policy, try load it with LTP_IMA_LOAD_POLICY=1"
@@ -86,7 +86,7 @@ test3()
 	chown $IMA_USER $dir
 	cd $dir
 	# need to read file to get updated $ASCII_MEASUREMENTS
-	sudo -n -u $IMA_USER sh -c "echo $(cat /proc/uptime) user file > $file; cat $file > /dev/null"
+	su - $IMA_USER sh -c "echo $(cat /proc/uptime) user file > $file; cat $file > /dev/null"
 	cd ..
 
 	if ! tst_rod "$cmd" 2> /dev/null; then
-- 
2.51.0