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tools: kwbimage: Factor out add_binary_header_v1 

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>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Mario Six 2017-01-11 16:00:58 +01:00 committed by Stefan Roese
parent e93cf53f14
commit 79066ef8c9
1 changed files with 79 additions and 67 deletions
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146
tools/kwbimage.c
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@ -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);