mirror
/
openwrt
mirror of https://git.openwrt.org/openwrt/openwrt.git
1
0
Fork 0
Code Releases Activity

Fix 32/64bits issues with airlink image generator 

SVN-Revision: 7189
This commit is contained in:
Florian Fainelli 2007-05-11 18:22:22 +00:00
parent 52553da52c
commit edeee75f53
1 changed files with 24 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
tools/firmware-utils/src/airlink.c
View File

@ -25,10 +25,9 @@ AIRLINK AR525W firmware image structure
#include <fcntl.h> #include <fcntl.h>
#include <netinet/in.h> #include <netinet/in.h>
typedef unsigned long u32;
typedef unsigned char uchar; typedef unsigned char uchar;
u32 crctab[257] = { uint32_t crctab[257] = {
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
@ -96,7 +95,7 @@ u32 crctab[257] = {
0 0
}; };
u32 header[] = { uint32_t header[] = {
0x00000000, 0x4e525241, 0x00000000, 0x4e525241,
0x4b544d47, 0x00000000, 0x00000000, 0x000afd4a, 0x4b544d47, 0x00000000, 0x00000000, 0x000afd4a,
0x00000000, 0x00000005, 0x00000000, 0x00000000 0x00000000, 0x00000005, 0x00000000, 0x00000000
@ -107,7 +106,7 @@ static int JFFS2 = 0;
int generate_image(char *kname, char *fsname, char *fname, int EHDR) int generate_image(char *kname, char *fsname, char *fname, int EHDR)
{ {
int i; int i;
u32 lenk, lens; uint32_t lenk, lens;
uchar *bk, *bs; uchar *bk, *bs;
int fkd, ffd, fsd; int fkd, ffd, fsd;
fkd = open(kname, O_RDONLY); fkd = open(kname, O_RDONLY);
@ -151,11 +150,11 @@ int generate_image(char *kname, char *fsname, char *fname, int EHDR)
return 0; return 0;
} }
u32 crc32(uchar * buf, u32 len) uint32_t crc32(uchar * buf, uint32_t len)
{ {
register int i; register int i;
u32 sum; uint32_t sum;
register u32 s0; register uint32_t s0;
s0 = ~0; s0 = ~0;
for (i = 0; i < len; i++) { for (i = 0; i < len; i++) {
s0 = (s0 >> 8) ^ crctab[(uchar) (s0 & 0xFF) ^ buf[i]]; s0 = (s0 >> 8) ^ crctab[(uchar) (s0 & 0xFF) ^ buf[i]];
@ -242,10 +241,10 @@ int main(int argc, char **argv)
lseek(fd, 0, SEEK_SET); lseek(fd, 0, SEEK_SET);
uchar *buf = malloc(len); uchar *buf = malloc(len);
read(fd, buf, len); read(fd, buf, len);
u32 sum, l0; uint32_t sum, l0;
u32 MagicS = 0x474d544b; uint32_t MagicS = 0x474d544b;
u32 MagicE = 0x4152524e; uint32_t MagicE = 0x4152524e;
if (ntohl(*((u32 *) buf)) == MagicS) { if (ntohl(*((uint32_t *) buf)) == MagicS) {
fprintf(stderr, fprintf(stderr,
"Image without extra 8 bytes - Standard header\n"); "Image without extra 8 bytes - Standard header\n");
buf[0x10] = len & 0xff; buf[0x10] = len & 0xff;
@ -255,11 +254,11 @@ int main(int argc, char **argv)
lseek(fd, 0x10, SEEK_SET); lseek(fd, 0x10, SEEK_SET);
write(fd, buf + 0x10, 0x4); write(fd, buf + 0x10, 0x4);
EHDR = 0; EHDR = 0;
} else if ((ntohl(*((u32 *) (buf + 0x8))) == MagicS) } else if ((ntohl(*((uint32_t *) (buf + 0x8))) == MagicS)
&& ((ntohl(*((u32 *) (buf + 0x4))) == MagicE))) { && ((ntohl(*((uint32_t *) (buf + 0x4))) == MagicE))) {
fprintf(stderr, fprintf(stderr,
"Image with extra 8 bytes - Extended header\n"); "Image with extra 8 bytes - Extended header\n");
*((u32 *) (buf + 0x18)) = len - 8; *((uint32_t *) (buf + 0x18)) = len - 8;
buf[0x18] = (len - 8) & 0xff; buf[0x18] = (len - 8) & 0xff;
buf[0x19] = ((len - 8) >> 8) & 0xff; buf[0x19] = ((len - 8) >> 8) & 0xff;
buf[0x1a] = ((len - 8) >> 16) & 0xff; buf[0x1a] = ((len - 8) >> 16) & 0xff;
@ -268,11 +267,11 @@ int main(int argc, char **argv)
write(fd, buf + 0x18, 0x4); write(fd, buf + 0x18, 0x4);
buf += 8; buf += 8;
EHDR = 1; EHDR = 1;
} else if (len == buf[0x10] | ((u32)buf[0x11] << 8) | ((u32)buf[0x12] << 16) | ((u32)buf[0x13] << 24)) { } else if (len == buf[0x10] | ((uint32_t)buf[0x11] << 8) | ((uint32_t)buf[0x12] << 16) | ((uint32_t)buf[0x13] << 24)) {
fprintf(stderr, fprintf(stderr,
"Image without extra 8 bytes - Standard header\n"); "Image without extra 8 bytes - Standard header\n");
EHDR = 0; EHDR = 0;
} else if (len == (buf[0x18] | ((u32)buf[0x19] << 8) | ((u32)buf[0x1a] << 16) | ((u32)buf[0x1b] << 24)) + 8) { } else if (len == (buf[0x18] | ((uint32_t)buf[0x19] << 8) | ((uint32_t)buf[0x1a] << 16) | ((uint32_t)buf[0x1b] << 24)) + 8) {
fprintf(stderr, fprintf(stderr,
"Image with extra 8 bytes - Extended header\n"); "Image with extra 8 bytes - Extended header\n");
buf += 8; buf += 8;
@ -281,16 +280,16 @@ int main(int argc, char **argv)
fprintf(stderr, "ERROR: Wrong image size\n"); fprintf(stderr, "ERROR: Wrong image size\n");
exit(-1); exit(-1);
} }
l0 = buf[0x10] | ((u32)buf[0x11] << 8) | ((u32)buf[0x12] << 16) | ((u32)buf[0x13] << 24); l0 = buf[0x10] | ((uint32_t)buf[0x11] << 8) | ((uint32_t)buf[0x12] << 16) | ((uint32_t)buf[0x13] << 24);
if (!BHDR) if (!BHDR)
*((u32 *) & buf[0x18]) = 0; *((uint32_t *) & buf[0x18]) = 0;
unsigned long sum0 = buf[0x18] | ((u32)buf[0x19] << 8) | ((u32)buf[0x1a] << 16) | ((u32)buf[0x1b] << 24); unsigned long sum0 = buf[0x18] | ((uint32_t)buf[0x19] << 8) | ((uint32_t)buf[0x1a] << 16) | ((uint32_t)buf[0x1b] << 24);
unsigned long sum1 = buf[0x4] | ((u32)buf[0x5] << 8) | ((u32)buf[0x6] << 16) | ((u32)buf[0x7] << 24); unsigned long sum1 = buf[0x4] | ((uint32_t)buf[0x5] << 8) | ((uint32_t)buf[0x6] << 16) | ((uint32_t)buf[0x7] << 24);
*((u32 *) & buf[0x4]) = 0x0L; *((uint32_t *) & buf[0x4]) = 0x0L;
memcpy(b, buf, 0x100); memcpy(b, buf, 0x100);
memcpy(b + 0x100, buf + ((l0 >> 1) - ((l0 & 0x6) >> 1)), 0x100); memcpy(b + 0x100, buf + ((l0 >> 1) - ((l0 & 0x6) >> 1)), 0x100);
memcpy(b + 0x200, buf + (l0 - 0x200), 0x200); memcpy(b + 0x200, buf + (l0 - 0x200), 0x200);
*((u32 *) & b[0x18]) = 0x0L; *((uint32_t *) & b[0x18]) = 0x0L;
sum = crc32(b, 0x400); sum = crc32(b, 0x400);
printf("CRC32 sum0 - (%x, %x, %x)\n", sum, sum0, 0x400); printf("CRC32 sum0 - (%x, %x, %x)\n", sum, sum0, 0x400);
@ -316,13 +315,13 @@ int main(int argc, char **argv)
buf[0x7] = (sum >> 24) & 0xff; buf[0x7] = (sum >> 24) & 0xff;
write(fd, &buf[0x4], 0x4); write(fd, &buf[0x4], 0x4);
if (EHDR) { if (EHDR) {
unsigned long sum2 = buf[-0x8] | ((u32)buf[-0x7] << 8) | ((u32)buf[-0x6] << 16) | ((u32)buf[-0x5] << 24); unsigned long sum2 = buf[-0x8] | ((uint32_t)buf[-0x7] << 8) | ((uint32_t)buf[-0x6] << 16) | ((uint32_t)buf[-0x5] << 24);
*((u32 *) & buf[-0x8]) = 0L; *((uint32_t *) & buf[-0x8]) = 0L;
sum = crc32(buf - 0x4, len - 0x4); sum = crc32(buf - 0x4, len - 0x4);
printf("CRC32 sum2 - (%x, %x, %x)\n", sum, sum2, printf("CRC32 sum2 - (%x, %x, %x)\n", sum, sum2,
len - 0x4); len - 0x4);
lseek(fd, 0, SEEK_SET); lseek(fd, 0, SEEK_SET);
*((u32 *) & buf[-0x8]) = htonl(sum); *((uint32_t *) & buf[-0x8]) = htonl(sum);
write(fd, &buf[-0x8], 0x4); write(fd, &buf[-0x8], 0x4);
buf -= 8; buf -= 8;
} }