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authorCharles Manning <cdhmanning@gmail.com>2014-05-14 14:45:01 +1200
committerTom Rini <trini@ti.com>2014-06-05 14:38:38 -0400
commit25308f45e11527cbfc7ff6d9dced7800e4b976e4 (patch)
tree1788de35e7fe6c2b9948dbf6349662ff5de0a019
parentabbc67eedf37a240fe6cdd1ce46eedd12cd3a13f (diff)
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tools: Refactor mxsimage to use pbl_crc32
Both pblimage and mxsimage use the same crc algorithm, so refactor. Signed-off-by: Charles Manning <cdhmanning@gmail.com>
-rw-r--r--tools/mxsimage.c32
1 files changed, 7 insertions, 25 deletions
diff --git a/tools/mxsimage.c b/tools/mxsimage.c
index 045b35a..81c7f2d 100644
--- a/tools/mxsimage.c
+++ b/tools/mxsimage.c
@@ -19,6 +19,7 @@
#include "imagetool.h"
#include "mxsimage.h"
+#include "pbl_crc32.h"
#include <image.h>
@@ -231,29 +232,6 @@ static int sb_aes_reinit(struct sb_image_ctx *ictx, int enc)
}
/*
- * CRC32
- */
-static uint32_t crc32(uint8_t *data, uint32_t len)
-{
- const uint32_t poly = 0x04c11db7;
- uint32_t crc32 = 0xffffffff;
- unsigned int byte, bit;
-
- for (byte = 0; byte < len; byte++) {
- crc32 ^= data[byte] << 24;
-
- for (bit = 8; bit > 0; bit--) {
- if (crc32 & (1UL << 31))
- crc32 = (crc32 << 1) ^ poly;
- else
- crc32 = (crc32 << 1);
- }
- }
-
- return crc32;
-}
-
-/*
* Debug
*/
static void soprintf(struct sb_image_ctx *ictx, const char *fmt, ...)
@@ -998,7 +976,9 @@ static int sb_build_command_load(struct sb_image_ctx *ictx,
ccmd->load.address = dest;
ccmd->load.count = cctx->length;
- ccmd->load.crc32 = crc32(cctx->data, cctx->length);
+ ccmd->load.crc32 = pbl_crc32(0,
+ (const char *)cctx->data,
+ cctx->length);
cctx->size = sizeof(*ccmd) + cctx->length;
@@ -1834,7 +1814,9 @@ static int sb_verify_command(struct sb_image_ctx *ictx,
EVP_DigestUpdate(&ictx->md_ctx, cctx->data, asize);
sb_aes_crypt(ictx, cctx->data, cctx->data, asize);
- if (ccmd->load.crc32 != crc32(cctx->data, asize)) {
+ if (ccmd->load.crc32 != pbl_crc32(0,
+ (const char *)cctx->data,
+ asize)) {
fprintf(stderr,
"ERR: SB LOAD command payload CRC32 invalid!\n");
return -EINVAL;