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>
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 @@
}
/*
- * 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 @@
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 @@
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;