[LTP] [PATCH 1/2] ima_kexec.sh: Detect kernel image

[Petr Vorel]

Sometimes BOOT_IMAGE contains partition which does not point to /boot
e.g. BOOT_IMAGE=(hd0,gpt1)/opensuse-tumbleweed/6.18.3-1-default/linux-30afdbce3ab6d0eff8f42b71df1a66f4baf2daf8
on Tumbleweed aarch64. Therefore detect common kernel image paths.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
 .../security/integrity/ima/tests/ima_kexec.sh | 28 ++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/testcases/kernel/security/integrity/ima/tests/ima_kexec.sh b/testcases/kernel/security/integrity/ima/tests/ima_kexec.sh
index d6eb0829d8..7688690af2 100755
--- a/testcases/kernel/security/integrity/ima/tests/ima_kexec.sh
+++ b/testcases/kernel/security/integrity/ima/tests/ima_kexec.sh
@@ -42,7 +42,7 @@ measure()
 
 setup()
 {
-	local arch
+	local arch f uname
 
 	if [ ! -f "$IMA_KEXEC_IMAGE" ]; then
 		for arg in $(cat /proc/cmdline); do
@@ -63,6 +63,32 @@ setup()
 		fi
 	fi
 
+	if [ ! -f "$IMA_KEXEC_IMAGE" ]; then
+		uname="$(uname -r)"
+
+		# x86_64
+		f="/boot/vmlinuz-$uname"
+
+		# ppc64le, s390x
+		if [ ! -f "$f" ]; then
+			f="/boot/vmlinux-$uname"
+		fi
+
+		# aarch64
+		if [ ! -f "$f" ]; then
+			f="/boot/Image-$uname"
+		fi
+
+		# aarch64 often uses compression
+		if [ ! -f "$f" ]; then
+			f="$(ls /boot/Image-$uname.* || true)"
+		fi
+
+		if [ -f "$f" ]; then
+			IMA_KEXEC_IMAGE="$f"
+		fi
+	fi
+
 	if [ ! -f "$IMA_KEXEC_IMAGE" ]; then
 		tst_brk TCONF "kernel image not found, specify path in \$IMA_KEXEC_IMAGE"
 	fi
-- 
2.51.0