In preparation of adding the creation of secure headers, we factor the add_binary_header_v1 function out of the image_create_v1 function.
Signed-off-by: Mario Six mario.six@gdsys.cc --- Changes in v2:
None --- tools/kwbimage.c | 146 ++++++++++++++++++++++++++++++------------------------- 1 file changed, 79 insertions(+), 67 deletions(-)
diff --git a/tools/kwbimage.c b/tools/kwbimage.c index 87587f8..6cd4c34 100644 --- a/tools/kwbimage.c +++ b/tools/kwbimage.c @@ -369,6 +369,7 @@ static size_t image_headersz_v1(int *hasext) fprintf(stderr, "Increase CONFIG_SYS_U_BOOT_OFFS!\n"); return 0; } + headersz = CONFIG_SYS_U_BOOT_OFFS; #endif
@@ -379,10 +380,85 @@ static size_t image_headersz_v1(int *hasext) return ALIGN_SUP(headersz, 4096); }
+int add_binary_header_v1(uint8_t *cur) +{ + struct image_cfg_element *binarye; + struct opt_hdr_v1 *hdr = (struct opt_hdr_v1 *)cur; + uint32_t *args; + size_t binhdrsz; + struct stat s; + int argi; + FILE *bin; + int ret; + + binarye = image_find_option(IMAGE_CFG_BINARY); + + if (!binarye) + return 0; + + hdr->headertype = OPT_HDR_V1_BINARY_TYPE; + + bin = fopen(binarye->binary.file, "r"); + if (!bin) { + fprintf(stderr, "Cannot open binary file %s\n", + binarye->binary.file); + return -1; + } + + fstat(fileno(bin), &s); + + binhdrsz = sizeof(struct opt_hdr_v1) + + (binarye->binary.nargs + 2) * sizeof(uint32_t) + + s.st_size; + + /* + * The size includes the binary image size, rounded + * up to a 4-byte boundary. Plus 4 bytes for the + * next-header byte and 3-byte alignment at the end. + */ + binhdrsz = ALIGN_SUP(binhdrsz, 4) + 4; + hdr->headersz_lsb = cpu_to_le16(binhdrsz & 0xFFFF); + hdr->headersz_msb = (binhdrsz & 0xFFFF0000) >> 16; + + cur += sizeof(struct opt_hdr_v1); + + args = (uint32_t *)cur; + *args = cpu_to_le32(binarye->binary.nargs); + args++; + for (argi = 0; argi < binarye->binary.nargs; argi++) + args[argi] = cpu_to_le32(binarye->binary.args[argi]); + + cur += (binarye->binary.nargs + 1) * sizeof(uint32_t); + + ret = fread(cur, s.st_size, 1, bin); + if (ret != 1) { + fprintf(stderr, + "Could not read binary image %s\n", + binarye->binary.file); + return -1; + } + + fclose(bin); + + cur += ALIGN_SUP(s.st_size, 4); + + /* + * For now, we don't support more than one binary + * header, and no other header types are + * supported. So, the binary header is necessarily the + * last one + */ + *((uint32_t *)cur) = 0x00000000; + + cur += sizeof(uint32_t); + + return 0; +} + static void *image_create_v1(size_t *imagesz, struct image_tool_params *params, int payloadsz) { - struct image_cfg_element *e, *binarye; + struct image_cfg_element *e; struct main_hdr_v1 *main_hdr; size_t headersz; uint8_t *image, *cur; @@ -434,72 +510,8 @@ static void *image_create_v1(size_t *imagesz, struct image_tool_params *params, if (e) main_hdr->flags = e->debug ? 0x1 : 0;
- binarye = image_find_option(IMAGE_CFG_BINARY); - if (binarye) { - struct opt_hdr_v1 *hdr = (struct opt_hdr_v1 *)cur; - uint32_t *args; - size_t binhdrsz; - struct stat s; - int argi; - FILE *bin; - int ret; - - hdr->headertype = OPT_HDR_V1_BINARY_TYPE; - - bin = fopen(binarye->binary.file, "r"); - if (!bin) { - fprintf(stderr, "Cannot open binary file %s\n", - binarye->binary.file); - return NULL; - } - - fstat(fileno(bin), &s); - - binhdrsz = sizeof(struct opt_hdr_v1) + - (binarye->binary.nargs + 2) * sizeof(uint32_t) + - s.st_size; - - /* - * The size includes the binary image size, rounded - * up to a 4-byte boundary. Plus 4 bytes for the - * next-header byte and 3-byte alignment at the end. - */ - binhdrsz = ALIGN_SUP(binhdrsz, 4) + 4; - hdr->headersz_lsb = cpu_to_le16(binhdrsz & 0xFFFF); - hdr->headersz_msb = (binhdrsz & 0xFFFF0000) >> 16; - - cur += sizeof(struct opt_hdr_v1); - - args = (uint32_t *)cur; - *args = cpu_to_le32(binarye->binary.nargs); - args++; - for (argi = 0; argi < binarye->binary.nargs; argi++) - args[argi] = cpu_to_le32(binarye->binary.args[argi]); - - cur += (binarye->binary.nargs + 1) * sizeof(uint32_t); - - ret = fread(cur, s.st_size, 1, bin); - if (ret != 1) { - fprintf(stderr, - "Could not read binary image %s\n", - binarye->binary.file); - return NULL; - } - - fclose(bin); - - cur += ALIGN_SUP(s.st_size, 4); - - /* - * For now, we don't support more than one binary - * header, and no other header types are - * supported. So, the binary header is necessarily the - * last one - */ - *((uint32_t *)cur) = 0x00000000; - - cur += sizeof(uint32_t); - } + if (add_binary_header_v1(cur)) + return NULL;
/* Calculate and set the header checksum */ main_hdr->checksum = image_checksum8(main_hdr, headersz); -- 2.9.0