diff options
Diffstat (limited to 'tools/kwbimage.c')
-rw-r--r-- | tools/kwbimage.c | 29 |
1 files changed, 7 insertions, 22 deletions
diff --git a/tools/kwbimage.c b/tools/kwbimage.c index 944a108cee..d1f4f93e0f 100644 --- a/tools/kwbimage.c +++ b/tools/kwbimage.c @@ -280,14 +280,6 @@ static uint8_t image_checksum8(void *start, uint32_t len) return csum; } -size_t kwbimage_header_size(unsigned char *ptr) -{ - if (kwbimage_version((void *)ptr) == 0) - return sizeof(struct main_hdr_v0); - else - return KWBHEADER_V1_SIZE((struct main_hdr_v1 *)ptr); -} - /* * Verify checksum over a complete header that includes the checksum field. * Return 1 when OK, otherwise 0. @@ -298,7 +290,7 @@ static int main_hdr_checksum_ok(void *hdr) struct main_hdr_v0 *main_hdr = (struct main_hdr_v0 *)hdr; uint8_t checksum; - checksum = image_checksum8(hdr, kwbimage_header_size(hdr)); + checksum = image_checksum8(hdr, kwbheader_size_for_csum(hdr)); /* Calculated checksum includes the header checksum field. Compensate * for that. */ @@ -1649,8 +1641,8 @@ static int kwbimage_check_image_types(uint8_t type) static int kwbimage_verify_header(unsigned char *ptr, int image_size, struct image_tool_params *params) { - uint8_t checksum; - size_t header_size = kwbimage_header_size(ptr); + size_t header_size = kwbheader_size(ptr); + uint8_t csum; if (header_size > image_size) return -FDT_ERR_BADSTRUCTURE; @@ -1663,17 +1655,10 @@ static int kwbimage_verify_header(unsigned char *ptr, int image_size, struct main_hdr_v0 *mhdr = (struct main_hdr_v0 *)ptr; if (mhdr->ext & 0x1) { - struct ext_hdr_v0 *ext_hdr; - - if (header_size + sizeof(*ext_hdr) > image_size) - return -FDT_ERR_BADSTRUCTURE; + struct ext_hdr_v0 *ext_hdr = (void *)(mhdr + 1); - ext_hdr = (struct ext_hdr_v0 *) - (ptr + sizeof(struct main_hdr_v0)); - checksum = image_checksum8(ext_hdr, - sizeof(struct ext_hdr_v0) - - sizeof(uint8_t)); - if (checksum != ext_hdr->checksum) + csum = image_checksum8(ext_hdr, sizeof(*ext_hdr) - 1); + if (csum != ext_hdr->checksum) return -FDT_ERR_BADSTRUCTURE; } } else if (kwbimage_version(ptr) == 1) { @@ -1832,7 +1817,7 @@ static int kwbimage_generate(struct image_tool_params *params, static int kwbimage_extract_subimage(void *ptr, struct image_tool_params *params) { struct main_hdr_v1 *mhdr = (struct main_hdr_v1 *)ptr; - size_t header_size = kwbimage_header_size(ptr); + size_t header_size = kwbheader_size(ptr); struct opt_hdr_v1 *ohdr; int idx = params->pflag; int cur_idx = 0; |