kernel-fitimage: introduce FIT_HASH_ALG

sanitize fitImage hash algorithm selection with FIT_HASH_ALG
switch default hash algorithm from sha1 to sha256

(From OE-Core rev: 8c9d5d59cb1575fac17c461090937df4cbb3d3b5)

Signed-off-by: Ayoub Zaki <ayoub.zaki@embexus.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 8 insertions, 5 deletions

diff --git a/meta/classes/kernel-fitimage.bbclass b/meta/classes/kernel-fitimage.bbclass
index 9e224daf05..b51882dce4 100644
--- a/meta/classes/kernel-fitimage.bbclass
+++ b/meta/classes/kernel-fitimage.bbclass
@@ -50,6 +50,9 @@ python __anonymous () {
 # Options for the device tree compiler passed to mkimage '-D' feature:
 UBOOT_MKIMAGE_DTCOPTS ??= ""
 
+# fitImage Hash Algo
+FIT_HASH_ALG ?= "sha256"
+
 #
 # Emit the fitImage ITS header
 #
@@ -109,7 +112,7 @@ EOF
 # $4 ... Compression type
 fitimage_emit_section_kernel() {
 
-        kernel_csum="sha1"
+        kernel_csum="${FIT_HASH_ALG}"
 
         ENTRYPOINT="${UBOOT_ENTRYPOINT}"
         if [ -n "${UBOOT_ENTRYSYMBOL}" ]; then
@@ -142,7 +145,7 @@ EOF
 # $3 ... Path to DTB image
 fitimage_emit_section_dtb() {
 
-        dtb_csum="sha1"
+        dtb_csum="${FIT_HASH_ALG}"
 
         dtb_loadline=""
         dtb_ext=${DTB##*.}
@@ -176,7 +179,7 @@ EOF
 # $3 ... Path to setup image
 fitimage_emit_section_setup() {
 
-        setup_csum="sha1"
+        setup_csum="${FIT_HASH_ALG}"
 
         cat << EOF >> ${1}
                 setup@${2} {
@@ -203,7 +206,7 @@ EOF
 # $3 ... Path to ramdisk image
 fitimage_emit_section_ramdisk() {
 
-        ramdisk_csum="sha1"
+        ramdisk_csum="${FIT_HASH_ALG}"
         ramdisk_ctype="none"
         ramdisk_loadline=""
         ramdisk_entryline=""
@@ -261,7 +264,7 @@ EOF
 # $6 ... default flag
 fitimage_emit_section_config() {
 
-        conf_csum="sha1"
+        conf_csum="${FIT_HASH_ALG}"
         if [ -n "${UBOOT_SIGN_ENABLE}" ] ; then
                 conf_sign_keyname="${UBOOT_SIGN_KEYNAME}"
         fi