[PATCH 3/4] cmd: mvebu/bubt: Add support for sha512 checksum validation for Armada 3700
Pali Rohár
pali at kernel.org
Tue Jul 26 16:11:58 CEST 2022
Armada 3700 BootROM supports also images with sha512 checksums and
mox-imager tool [1] generates such bootable images. Without sha512 support
U-Boot bubt command just prints error message:
Error: Unsupported hash_algorithm_id = 64
Error: Image header verification failed
This patch adds support for sha512 checksum validation for Armada 3700
images. With it bubt prints:
Image checksum...OK!
[1] - https://gitlab.nic.cz/turris/mox-boot-builder.git
Signed-off-by: Pali Rohár <pali at kernel.org>
---
cmd/mvebu/Kconfig | 1 +
cmd/mvebu/bubt.c | 9 +++++++++
2 files changed, 10 insertions(+)
diff --git a/cmd/mvebu/Kconfig b/cmd/mvebu/Kconfig
index 39963db82c98..120397d6d4d0 100644
--- a/cmd/mvebu/Kconfig
+++ b/cmd/mvebu/Kconfig
@@ -4,6 +4,7 @@ depends on ARCH_MVEBU
config CMD_MVEBU_BUBT
bool "bubt"
select SHA256 if ARMADA_3700
+ select SHA512 if ARMADA_3700
help
bubt - Burn a u-boot image to flash
For details about bubt command please see the documentation
diff --git a/cmd/mvebu/bubt.c b/cmd/mvebu/bubt.c
index 2924b1539f32..276069a0efc2 100644
--- a/cmd/mvebu/bubt.c
+++ b/cmd/mvebu/bubt.c
@@ -26,6 +26,7 @@
#endif
#include <u-boot/sha1.h>
#include <u-boot/sha256.h>
+#include <u-boot/sha512.h>
#if defined(CONFIG_ARMADA_8K)
#define MAIN_HDR_MAGIC 0xB105B002
@@ -566,8 +567,10 @@ static int check_image_header(void)
int image_num;
u8 hash_160_output[SHA1_SUM_LEN];
u8 hash_256_output[SHA256_SUM_LEN];
+ u8 hash_512_output[SHA512_SUM_LEN];
sha1_context hash1_text;
sha256_context hash256_text;
+ sha512_context hash512_text;
u8 *hash_output;
u32 hash_algorithm_id;
u32 image_size_to_hash;
@@ -637,6 +640,12 @@ static int check_image_header(void)
sha256_finish(&hash256_text, hash_256_output);
hash_output = hash_256_output;
break;
+ case SHA512_SUM_LEN:
+ sha512_starts(&hash512_text);
+ sha512_update(&hash512_text, buff, image_size_to_hash);
+ sha512_finish(&hash512_text, hash_512_output);
+ hash_output = hash_512_output;
+ break;
default:
printf("Error: Unsupported hash_algorithm_id = %d\n",
hash_algorithm_id);
--
2.20.1
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