[PATCH v2 3/5] selftests/ima: define common logging functions

[Mimi Zohar]

Define log_info, log_pass, log_fail, and log_skip functions.

Suggested-by: Petr Vorel <pvo...@suse.cz>
Signed-off-by: Mimi Zohar <zo...@linux.ibm.com>
---
 tools/testing/selftests/ima/common_lib.sh      | 43 +++++++++++++++++++++++---
 tools/testing/selftests/ima/test_kexec_load.sh | 19 +++---------
 2 files changed, 43 insertions(+), 19 deletions(-)

diff --git a/tools/testing/selftests/ima/common_lib.sh 
b/tools/testing/selftests/ima/common_lib.sh
index 5583ea74c14e..c6d04006281d 100755
--- a/tools/testing/selftests/ima/common_lib.sh
+++ b/tools/testing/selftests/ima/common_lib.sh
@@ -1,5 +1,36 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Kselftest framework defines: ksft_pass=0, ksft_fail=1, ksft_skip=4
+
+VERBOSE="${VERBOSE:-1}"
+
+log_info()
+{
+       [ $VERBOSE -ne 0 ] && echo "[INFO] $1"
+}
+
+# The ksefltest framework requirement returns 0 for PASS.
+log_pass()
+{
+
+       [ $VERBOSE -ne 0 ] && echo "$1 [PASS]"
+       exit 0
+}
+
+# The ksefltest framework requirement returns 1 for FAIL.
+log_fail()
+{
+       [ $VERBOSE -ne 0 ] && echo "$1 [FAIL]"
+       exit 1
+}
+
+# The ksefltest framework requirement returns 4 for SKIP.
+log_skip()
+{
+       [ $VERBOSE -ne 0 ] && echo "$1"
+       exit 4
+}
 
 # The secure boot mode can be accessed either as the last integer
 # of "od -An -t u1 /sys/firmware/efi/efivars/SecureBoot-*" or from
@@ -8,17 +39,19 @@
 get_secureboot_mode()
 {
        local efivarfs="/sys/firmware/efi/efivars"
+
        # Make sure that efivars is mounted in the normal location
        if ! grep -q "^\S\+ $efivarfs efivarfs" /proc/mounts; then
-               echo "$TEST: efivars is not mounted on $efivarfs" >&2
-               exit $ksft_skip
+               log_skip "efivars is not mounted on $efivarfs"
        fi
 
        # Get secureboot mode
        local file="$efivarfs/../vars/SecureBoot-*/data"
        if [ ! -e $file ]; then
-               echo "$TEST: unknown secureboot mode" >&2
-               exit $ksft_skip
+               log_skip "unknown secureboot mode"
        fi
-       return `od -An -t u1 /sys/firmware/efi/vars/SecureBoot-*/data`
+       ret=`od -An -t u1 /sys/firmware/efi/vars/SecureBoot-*/data`
+       [ $ret -eq 1 ] && log_info "secure boot mode enabled"
+
+       return $ret
 }
diff --git a/tools/testing/selftests/ima/test_kexec_load.sh 
b/tools/testing/selftests/ima/test_kexec_load.sh
index 35934e0665f1..8b99017538ba 100755
--- a/tools/testing/selftests/ima/test_kexec_load.sh
+++ b/tools/testing/selftests/ima/test_kexec_load.sh
@@ -6,15 +6,10 @@
 
 TEST="$0"
 . ./common_lib.sh
-rc=0
-
-# Kselftest framework requirement - SKIP code is 4.
-ksft_skip=4
 
 # kexec requires root privileges
 if [ $(id -ru) -ne 0 ]; then
-       echo "$TEST: requires root privileges" >&2
-       exit $ksft_skip
+       log_skip "requires root privileges" >&2
 fi
 
 get_secureboot_mode
@@ -26,18 +21,14 @@ kexec --load $KERNEL_IMAGE 2>&1 > /dev/null
 if [ $? -eq 0 ]; then
        kexec --unload
        if [ $secureboot -eq 1 ]; then
-               echo "$TEST: kexec_load succeeded [FAIL]"
-               rc=1
+               log_fail "kexec_load succeeded"
        else
-               echo "$TEST: kexec_load succeeded [PASS]"
+               log_pass "kexec_load succeeded"
        fi
 else
        if [ $secureboot -eq 1 ]; then
-               echo "$TEST: kexec_load failed [PASS]"
+               log_pass "kexec_load failed"
        else
-               echo "$TEST: kexec_load failed [FAIL]"
-               rc=1
+               log_fail "kexec_load failed"
        fi
 fi
-
-exit $rc
-- 
2.7.5