Both pblimage and mxsimage use the same crc algorithm, so refactor.
Signed-off-by: Charles Manning cdhmanning@gmail.com --- Changes for V2: - Cast buffer pointers when calling pbl_crc32().
tools/mxsimage.c | 32 +++++++------------------------- 1 file 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;