int main (int argc, char **argv)
{
int ch, i, boot, imagefd = 0, force, unlocked;
char *erase[MAX_ARGS], *device = NULL;
char *fis_layout = NULL;
size_t offset = 0, part_offset = 0, dump_len = 0;
enum {
CMD_ERASE,
CMD_WRITE,
CMD_UNLOCK,
CMD_JFFS2WRITE,
CMD_FIXTRX,
CMD_FIXSEAMA,
CMD_VERIFY,
CMD_DUMP,
} cmd = -1;
erase[0] = NULL;
boot = 0;
force = 0;
buflen = 0;
quiet = 0;
no_erase = 0;
while ((ch = getopt(argc, argv,
#ifdef FIS_SUPPORT
"F:"
#endif
"frnqe:d:s:j:p:o:l:")) != -1)
switch (ch) {
case 'f':
force = 1;
break;
case 'r':
boot = 1;
break;
case 'n':
no_erase = 1;
break;
case 'j':
jffs2file = optarg;
break;
case 's':
errno = 0;
jffs2_skip_bytes = strtoul(optarg, 0, 0);
if (errno) {
fprintf(stderr, "-s: illegal numeric string\n");
usage();
}
break;
case 'q':
quiet++;
break;
case 'e':
i = 0;
while ((erase[i] != NULL) && ((i + 1) < MAX_ARGS))
i++;
erase[i++] = optarg;
erase[i] = NULL;
break;
case 'd':
jffs2dir = optarg;
break;
case 'p':
errno = 0;
part_offset = strtoul(optarg, 0, 0);
if (errno) {
fprintf(stderr, "-p: illegal numeric string\n");
usage();
}
break;
case 'l':
errno = 0;
dump_len = strtoul(optarg, 0, 0);
if (errno) {
fprintf(stderr, "-l: illegal numeric string\n");
usage();
}
break;
case 'o':
errno = 0;
offset = strtoul(optarg, 0, 0);
if (errno) {
fprintf(stderr, "-o: illegal numeric string\n");
usage();
}
break;
#ifdef FIS_SUPPORT
case 'F':
fis_layout = optarg;
break;
#endif
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc < 2)
usage();
if ((strcmp(argv[0], "unlock") == 0) && (argc == 2)) {
cmd = CMD_UNLOCK;
device = argv[1];
} else if ((strcmp(argv[0], "erase") == 0) && (argc == 2)) {
cmd = CMD_ERASE;
device = argv[1];
} else if (((strcmp(argv[0], "fixtrx") == 0) && (argc == 2)) && mtd_fixtrx) {
cmd = CMD_FIXTRX;
device = argv[1];
} else if (((strcmp(argv[0], "fixseama") == 0) && (argc == 2)) && mtd_fixseama) {
cmd = CMD_FIXSEAMA;
device = argv[1];
} else if ((strcmp(argv[0], "verify") == 0) && (argc == 3)) {
cmd = CMD_VERIFY;
imagefile = argv[1];
device = argv[2];
} else if ((strcmp(argv[0], "dump") == 0) && (argc == 2)) {
cmd = CMD_DUMP;
device = argv[1];
} else if ((strcmp(argv[0], "write") == 0) && (argc == 3)) {
cmd = CMD_WRITE;
device = argv[2];
if (strcmp(argv[1], "-") == 0) {
imagefile = "<stdin>";
imagefd = 0;
} else {
imagefile = argv[1];
if ((imagefd = open(argv[1], O_RDONLY)) < 0) {
fprintf(stderr, "Couldn't open image file: %s!\n", imagefile);
exit(1);
}
}
if (!mtd_check(device)) {
fprintf(stderr, "Can't open device for writing!\n");
exit(1);
}
/* check trx file before erasing or writing anything */
if (!image_check(imagefd, device) && !force) {
fprintf(stderr, "Image check failed.\n");
exit(1);
}
} else if ((strcmp(argv[0], "jffs2write") == 0) && (argc == 3)) {
cmd = CMD_JFFS2WRITE;
device = argv[2];
imagefile = argv[1];
if (!mtd_check(device)) {
fprintf(stderr, "Can't open device for writing!\n");
exit(1);
}
} else {
usage();
}
sync();
i = 0;
unlocked = 0;
while (erase[i] != NULL) {
mtd_unlock(erase[i]);
mtd_erase(erase[i]);
if (strcmp(erase[i], device) == 0)
unlocked = 1;
i++;
}
switch (cmd) {
case CMD_UNLOCK:
if (!unlocked)
mtd_unlock(device);
break;
case CMD_VERIFY:
mtd_verify(device, imagefile);
break;
case CMD_DUMP:
mtd_dump(device, offset, dump_len);
break;
case CMD_ERASE:
if (!unlocked)
mtd_unlock(device);
mtd_erase(device);
break;
case CMD_WRITE:
if (!unlocked)
mtd_unlock(device);
mtd_write(imagefd, device, fis_layout, part_offset);
break;
case CMD_JFFS2WRITE:
if (!unlocked)
mtd_unlock(device);
mtd_write_jffs2(device, imagefile, jffs2dir);
break;
case CMD_FIXTRX:
if (mtd_fixtrx) {
mtd_fixtrx(device, offset);
}
case CMD_FIXSEAMA:
if (mtd_fixseama)
mtd_fixseama(device, 0);
break;
}
sync();
if (boot)
do_reboot();
return 0;
}
static int
mtd_write(int imagefd, const char *mtd, char *fis_layout, size_t part_offset)
{
char *next = NULL;
char *str = NULL;
int fd, result;
ssize_t r, w, e;
ssize_t skip = 0;
uint32_t offset = 0;
int jffs2_replaced = 0;
int skip_bad_blocks = 0;
#ifdef FIS_SUPPORT
static struct fis_part new_parts[MAX_ARGS];
static struct fis_part old_parts[MAX_ARGS];
int n_new = 0, n_old = 0;
if (fis_layout) {
const char *tmp = mtd;
char *word, *brkt;
int ret;
memset(&old_parts, 0, sizeof(old_parts));
memset(&new_parts, 0, sizeof(new_parts));
do {
next = strchr(tmp, ':');
if (!next)
next = (char *) tmp + strlen(tmp);
memcpy(old_parts[n_old].name, tmp, next - tmp);
n_old++;
tmp = next + 1;
} while(*next);
for (word = strtok_r(fis_layout, ",", &brkt);
word;
word = strtok_r(NULL, ",", &brkt)) {
tmp = strtok(word, ":");
strncpy((char *) new_parts[n_new].name, tmp, sizeof(new_parts[n_new].name) - 1);
tmp = strtok(NULL, ":");
if (!tmp)
goto next;
new_parts[n_new].size = strtoul(tmp, NULL, 0);
tmp = strtok(NULL, ":");
if (!tmp)
goto next;
new_parts[n_new].loadaddr = strtoul(tmp, NULL, 16);
next:
n_new++;
}
ret = fis_validate(old_parts, n_old, new_parts, n_new);
if (ret < 0) {
fprintf(stderr, "Failed to validate the new FIS partition table\n");
exit(1);
}
if (ret == 0)
fis_layout = NULL;
}
#endif
if (strchr(mtd, ':')) {
str = strdup(mtd);
mtd = str;
}
r = 0;
resume:
next = strchr(mtd, ':');
if (next) {
*next = 0;
next++;
}
fd = mtd_check_open(mtd);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
if (part_offset > 0) {
fprintf(stderr, "Seeking on mtd device '%s' to: %zu\n", mtd, part_offset);
lseek(fd, part_offset, SEEK_SET);
}
indicate_writing(mtd);
w = e = 0;
for (;;) {
/* buffer may contain data already (from trx check or last mtd partition write attempt) */
while (buflen < erasesize) {
r = read(imagefd, buf + buflen, erasesize - buflen);
if (r < 0) {
if ((errno == EINTR) || (errno == EAGAIN))
continue;
else {
perror("read");
break;
}
}
if (r == 0)
break;
buflen += r;
}
if (buflen == 0)
break;
if (buflen < erasesize) {
/* Pad block to eraseblock size */
memset(&buf[buflen], 0xff, erasesize - buflen);
buflen = erasesize;
}
if (skip > 0) {
skip -= buflen;
buflen = 0;
if (skip <= 0)
indicate_writing(mtd);
continue;
}
if (jffs2file && w >= jffs2_skip_bytes) {
if (memcmp(buf, JFFS2_EOF, sizeof(JFFS2_EOF) - 1) == 0) {
if (!quiet)
fprintf(stderr, "\b\b\b ");
if (quiet < 2)
fprintf(stderr, "\nAppending jffs2 data from %s to %s..\n.", jffs2file, mtd);
/* got an EOF marker - this is the place to add some jffs2 data */
skip = mtd_replace_jffs2(mtd, fd, e, jffs2file);
jffs2_replaced = 1;
/* don't add it again */
jffs2file = NULL;
w += skip;
e += skip;
skip -= buflen;
buflen = 0;
offset = 0;
continue;
}
/* no EOF marker, make sure we figure out the last inode number
* before appending some data */
mtd_parse_jffs2data(buf, jffs2dir);
}
/* need to erase the next block before writing data to it */
if(!no_erase)
{
while (w + buflen > e - skip_bad_blocks) {
if (!quiet)
fprintf(stderr, "\b\b\b[e]");
if (mtd_block_is_bad(fd, e)) {
if (!quiet)
fprintf(stderr, "\nSkipping bad block at 0x%08zx ", e);
skip_bad_blocks += erasesize;
e += erasesize;
// Move the file pointer along over the bad block.
lseek(fd, erasesize, SEEK_CUR);
continue;
}
if (mtd_erase_block(fd, e) < 0) {
if (next) {
if (w < e) {
write(fd, buf + offset, e - w);
offset = e - w;
}
w = 0;
e = 0;
close(fd);
mtd = next;
fprintf(stderr, "\b\b\b \n");
goto resume;
} else {
fprintf(stderr, "Failed to erase block\n");
exit(1);
}
}
/* erase the chunk */
e += erasesize;
}
}
if (!quiet)
fprintf(stderr, "\b\b\b[w]");
if ((result = write(fd, buf + offset, buflen)) < buflen) {
if (result < 0) {
fprintf(stderr, "Error writing image.\n");
exit(1);
} else {
fprintf(stderr, "Insufficient space.\n");
exit(1);
}
}
w += buflen;
buflen = 0;
offset = 0;
}
if (jffs2_replaced) {
switch (imageformat) {
case MTD_IMAGE_FORMAT_TRX:
if (trx_fixup)
trx_fixup(fd, mtd);
break;
case MTD_IMAGE_FORMAT_SEAMA:
if (mtd_fixseama)
mtd_fixseama(mtd, 0, 0);
break;
case MTD_IMAGE_FORMAT_WRG:
if (mtd_fixwrg)
mtd_fixwrg(mtd, 0, 0);
break;
case MTD_IMAGE_FORMAT_WRGG03:
if (mtd_fixwrgg)
mtd_fixwrgg(mtd, 0, 0);
break;
default:
break;
}
}
if (!quiet)
fprintf(stderr, "\b\b\b\b ");
if (quiet < 2)
fprintf(stderr, "\n");
#ifdef FIS_SUPPORT
if (fis_layout) {
if (fis_remap(old_parts, n_old, new_parts, n_new) < 0)
fprintf(stderr, "Failed to update the FIS partition table\n");
}
#endif
close(fd);
return 0;
}
