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firmware-utils/mkfwimage: allow to override firmware magic

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30627 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg 2012-02-18 14:45:54 +00:00
parent 8930617368
commit b0afa701c8
1 changed files with 12 additions and 5 deletions
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17
tools/firmware-utils/src/mkfwimage.c
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@ -102,23 +102,24 @@ typedef struct part_data {
#define DEFAULT_OUTPUT_FILE "firmware-image.bin"
#define DEFAULT_VERSION "UNKNOWN"
#define OPTIONS "B:hv:o:r:k:"
#define OPTIONS "B:hv:m:o:r:k:"
static int debug = 0;
typedef struct image_info {
char magic[16];
char version[256];
char outputfile[PATH_MAX];
u_int32_t part_count;
part_data_t parts[MAX_SECTIONS];
} image_info_t;
static void write_header(void* mem, const char* version)
static void write_header(void* mem, const char *magic, const char* version)
{
header_t* header = mem;
memset(header, 0, sizeof(header_t));
memcpy(header->magic, MAGIC_HEADER, MAGIC_LENGTH);
memcpy(header->magic, magic, MAGIC_LENGTH);
strncpy(header->version, version, sizeof(header->version));
header->crc = htonl(crc32(0L, (unsigned char *)header,
sizeof(header_t) - 2 * sizeof(u_int32_t)));
@ -183,11 +184,12 @@ static void usage(const char* progname)
"Usage: %s [options]\n"
"\t-v <version string>\t - firmware version information, default: %s\n"
"\t-o <output file>\t - firmware output file, default: %s\n"
"\t-m <magic>\t - firmware magic, default: %s\n"
"\t-k <kernel file>\t\t - kernel file\n"
"\t-r <rootfs file>\t\t - rootfs file\n"
"\t-B <board name>\t\t - choose firmware layout for specified board (XS2, XS5, RS, XM)\n"
"\t-h\t\t\t - this help\n", VERSION,
progname, DEFAULT_VERSION, DEFAULT_OUTPUT_FILE);
progname, DEFAULT_VERSION, DEFAULT_OUTPUT_FILE, MAGIC_HEADER);
}
static void print_image_info(const image_info_t* im)
@ -339,7 +341,7 @@ static int build_image(image_info_t* im)
}
// write header
write_header(mem, im->version);
write_header(mem, im->magic, im->version);
ptr = mem + sizeof(header_t);
// write all parts
for (i = 0; i < im->part_count; ++i)
@ -390,6 +392,7 @@ int main(int argc, char* argv[])
strcpy(im.outputfile, DEFAULT_OUTPUT_FILE);
strcpy(im.version, DEFAULT_VERSION);
strncpy(im.magic, MAGIC_HEADER, sizeof(im.magic));
while ((o = getopt(argc, argv, OPTIONS)) != -1)
{
@ -402,6 +405,10 @@ int main(int argc, char* argv[])
if (optarg)
strncpy(im.outputfile, optarg, sizeof(im.outputfile));
break;
case 'm':
if (optarg)
strncpy(im.magic, optarg, sizeof(im.magic));
break;
case 'h':
usage(argv[0]);
return -1;