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openwrtv3/package/system/mtd/src/mtd.c
Felix Fietkau d92ec071b2 mtd: fix erase handling with partition offset on write 
When a partition offset is given, it is used in an lseek call, which
affects write, but not erase. Add it to the offset for erase calls as
well

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2018-04-20 10:03:38 +02:00

1047 lines
22 KiB
C
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/*
* mtd - simple memory technology device manipulation tool
*
* Copyright (C) 2005 Waldemar Brodkorb <wbx@dass-it.de>,
* Copyright (C) 2005-2009 Felix Fietkau <nbd@nbd.name>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License v2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
* The code is based on the linux-mtd examples.
*/
#define _GNU_SOURCE
#include <byteswap.h>
#include <endian.h>
#include <limits.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <sys/syscall.h>
#include <fcntl.h>
#include <errno.h>
#include <time.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/reboot.h>
#include <linux/reboot.h>
#include <mtd/mtd-user.h>
#include "fis.h"
#include "mtd.h"
#include <libubox/md5.h>
#define MAX_ARGS 8
#define JFFS2_DEFAULT_DIR "" /* directory name without /, empty means root dir */
#define TRX_MAGIC 0x48445230 /* "HDR0" */
#define SEAMA_MAGIC 0x5ea3a417
#define WRG_MAGIC 0x20040220
#define WRGG03_MAGIC 0x20080321
#if !defined(__BYTE_ORDER)
#error "Unknown byte order"
#endif
#if __BYTE_ORDER == __BIG_ENDIAN
#define cpu_to_be32(x) (x)
#define be32_to_cpu(x) (x)
#define le32_to_cpu(x) bswap_32(x)
#elif __BYTE_ORDER == __LITTLE_ENDIAN
#define cpu_to_be32(x) bswap_32(x)
#define be32_to_cpu(x) bswap_32(x)
#define le32_to_cpu(x) (x)
#else
#error "Unsupported endianness"
#endif
enum mtd_image_format {
MTD_IMAGE_FORMAT_UNKNOWN,
MTD_IMAGE_FORMAT_TRX,
MTD_IMAGE_FORMAT_SEAMA,
MTD_IMAGE_FORMAT_WRG,
MTD_IMAGE_FORMAT_WRGG03,
};
static char *buf = NULL;
static char *imagefile = NULL;
static enum mtd_image_format imageformat = MTD_IMAGE_FORMAT_UNKNOWN;
static char *jffs2file = NULL, *jffs2dir = JFFS2_DEFAULT_DIR;
static int buflen = 0;
int quiet;
int no_erase;
int mtdsize = 0;
int erasesize = 0;
int jffs2_skip_bytes=0;
int mtdtype = 0;
int mtd_open(const char *mtd, bool block)
{
FILE *fp;
char dev[PATH_MAX];
int i;
int ret;
int flags = O_RDWR | O_SYNC;
char name[PATH_MAX];
snprintf(name, sizeof(name), "\"%s\"", mtd);
if ((fp = fopen("/proc/mtd", "r"))) {
while (fgets(dev, sizeof(dev), fp)) {
if (sscanf(dev, "mtd%d:", &i) && strstr(dev, name)) {
snprintf(dev, sizeof(dev), "/dev/mtd%s/%d", (block ? "block" : ""), i);
if ((ret=open(dev, flags))<0) {
snprintf(dev, sizeof(dev), "/dev/mtd%s%d", (block ? "block" : ""), i);
ret=open(dev, flags);
}
fclose(fp);
return ret;
}
}
fclose(fp);
}
return open(mtd, flags);
}
int mtd_check_open(const char *mtd)
{
struct mtd_info_user mtdInfo;
int fd;
fd = mtd_open(mtd, false);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
return -1;
}
if(ioctl(fd, MEMGETINFO, &mtdInfo)) {
fprintf(stderr, "Could not get MTD device info from %s\n", mtd);
close(fd);
return -1;
}
mtdsize = mtdInfo.size;
erasesize = mtdInfo.erasesize;
mtdtype = mtdInfo.type;
return fd;
}
int mtd_block_is_bad(int fd, int offset)
{
int r = 0;
loff_t o = offset;
if (mtdtype == MTD_NANDFLASH)
{
r = ioctl(fd, MEMGETBADBLOCK, &o);
if (r < 0)
{
fprintf(stderr, "Failed to get erase block status\n");
exit(1);
}
}
return r;
}
int mtd_erase_block(int fd, int offset)
{
struct erase_info_user mtdEraseInfo;
mtdEraseInfo.start = offset;
mtdEraseInfo.length = erasesize;
ioctl(fd, MEMUNLOCK, &mtdEraseInfo);
if (ioctl (fd, MEMERASE, &mtdEraseInfo) < 0)
return -1;
return 0;
}
int mtd_write_buffer(int fd, const char *buf, int offset, int length)
{
lseek(fd, offset, SEEK_SET);
write(fd, buf, length);
return 0;
}
static int
image_check(int imagefd, const char *mtd)
{
uint32_t magic;
int ret = 1;
int bufread;
while (buflen < sizeof(magic)) {
bufread = read(imagefd, buf + buflen, sizeof(magic) - buflen);
if (bufread < 1)
break;
buflen += bufread;
}
if (buflen < sizeof(magic)) {
fprintf(stdout, "Could not get image magic\n");
return 0;
}
magic = ((uint32_t *)buf)[0];
if (be32_to_cpu(magic) == TRX_MAGIC)
imageformat = MTD_IMAGE_FORMAT_TRX;
else if (be32_to_cpu(magic) == SEAMA_MAGIC)
imageformat = MTD_IMAGE_FORMAT_SEAMA;
else if (le32_to_cpu(magic) == WRG_MAGIC)
imageformat = MTD_IMAGE_FORMAT_WRG;
else if (le32_to_cpu(magic) == WRGG03_MAGIC)
imageformat = MTD_IMAGE_FORMAT_WRGG03;
switch (imageformat) {
case MTD_IMAGE_FORMAT_TRX:
if (trx_check)
ret = trx_check(imagefd, mtd, buf, &buflen);
break;
case MTD_IMAGE_FORMAT_SEAMA:
case MTD_IMAGE_FORMAT_WRG:
case MTD_IMAGE_FORMAT_WRGG03:
break;
default:
#ifdef target_brcm
if (!strcmp(mtd, "firmware"))
ret = 0;
#endif
break;
}
return ret;
}
static int mtd_check(const char *mtd)
{
char *next = NULL;
char *str = NULL;
int fd;
if (strchr(mtd, ':')) {
str = strdup(mtd);
mtd = str;
}
do {
next = strchr(mtd, ':');
if (next) {
*next = 0;
next++;
}
fd = mtd_check_open(mtd);
if (fd < 0)
return 0;
if (!buf)
buf = malloc(erasesize);
close(fd);
mtd = next;
} while (next);
if (str)
free(str);
return 1;
}
static int
mtd_unlock(const char *mtd)
{
struct erase_info_user mtdLockInfo;
char *next = NULL;
char *str = NULL;
int fd;
if (strchr(mtd, ':')) {
str = strdup(mtd);
mtd = str;
}
do {
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 (quiet < 2)
fprintf(stderr, "Unlocking %s ...\n", mtd);
mtdLockInfo.start = 0;
mtdLockInfo.length = mtdsize;
ioctl(fd, MEMUNLOCK, &mtdLockInfo);
close(fd);
mtd = next;
} while (next);
if (str)
free(str);
return 0;
}
static int
mtd_erase(const char *mtd)
{
int fd;
struct erase_info_user mtdEraseInfo;
if (quiet < 2)
fprintf(stderr, "Erasing %s ...\n", mtd);
fd = mtd_check_open(mtd);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
}
mtdEraseInfo.length = erasesize;
for (mtdEraseInfo.start = 0;
mtdEraseInfo.start < mtdsize;
mtdEraseInfo.start += erasesize) {
if (mtd_block_is_bad(fd, mtdEraseInfo.start)) {
if (!quiet)
fprintf(stderr, "\nSkipping bad block at 0x%x ", mtdEraseInfo.start);
} else {
ioctl(fd, MEMUNLOCK, &mtdEraseInfo);
if(ioctl(fd, MEMERASE, &mtdEraseInfo))
fprintf(stderr, "Failed to erase block on %s at 0x%x\n", mtd, mtdEraseInfo.start);
}
}
close(fd);
return 0;
}
static int
mtd_dump(const char *mtd, int part_offset, int size)
{
int ret = 0, offset = 0;
int fd;
char *buf;
if (quiet < 2)
fprintf(stderr, "Dumping %s ...\n", mtd);
fd = mtd_check_open(mtd);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
return -1;
}
if (!size)
size = mtdsize;
if (part_offset)
lseek(fd, part_offset, SEEK_SET);
buf = malloc(erasesize);
if (!buf)
return -1;
do {
int len = (size > erasesize) ? (erasesize) : (size);
int rlen = read(fd, buf, len);
if (rlen < 0) {
if (errno == EINTR)
continue;
ret = -1;
goto out;
}
if (!rlen || rlen != len)
break;
if (mtd_block_is_bad(fd, offset)) {
fprintf(stderr, "skipping bad block at 0x%08x\n", offset);
} else {
size -= rlen;
write(1, buf, rlen);
}
offset += rlen;
} while (size > 0);
out:
close(fd);
return ret;
}
static int
mtd_verify(const char *mtd, char *file)
{
uint32_t f_md5[4], m_md5[4];
struct stat s;
md5_ctx_t ctx;
int ret = 0;
int fd;
if (quiet < 2)
fprintf(stderr, "Verifying %s against %s ...\n", mtd, file);
if (stat(file, &s) || md5sum(file, f_md5) < 0) {
fprintf(stderr, "Failed to hash %s\n", file);
return -1;
}
fd = mtd_check_open(mtd);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
return -1;
}
md5_begin(&ctx);
do {
char buf[256];
int len = (s.st_size > sizeof(buf)) ? (sizeof(buf)) : (s.st_size);
int rlen = read(fd, buf, len);
if (rlen < 0) {
if (errno == EINTR)
continue;
ret = -1;
goto out;
}
if (!rlen)
break;
md5_hash(buf, rlen, &ctx);
s.st_size -= rlen;
} while (s.st_size > 0);
md5_end(m_md5, &ctx);
fprintf(stderr, "%08x%08x%08x%08x - %s\n", m_md5[0], m_md5[1], m_md5[2], m_md5[3], mtd);
fprintf(stderr, "%08x%08x%08x%08x - %s\n", f_md5[0], f_md5[1], f_md5[2], f_md5[3], file);
ret = memcmp(f_md5, m_md5, sizeof(m_md5));
if (!ret)
fprintf(stderr, "Success\n");
else
fprintf(stderr, "Failed\n");
out:
close(fd);
return ret;
}
static void
indicate_writing(const char *mtd)
{
if (quiet < 2)
fprintf(stderr, "\nWriting from %s to %s ... ", imagefile, mtd);
if (!quiet)
fprintf(stderr, " [ ]");
}
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 + part_offset) < 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;
}
static void usage(void)
{
fprintf(stderr, "Usage: mtd [<options> ...] <command> [<arguments> ...] <device>[:<device>...]\n\n"
"The device is in the format of mtdX (eg: mtd4) or its label.\n"
"mtd recognizes these commands:\n"
" unlock unlock the device\n"
" refresh refresh mtd partition\n"
" erase erase all data on device\n"
" verify <imagefile>|- verify <imagefile> (use - for stdin) to device\n"
" write <imagefile>|- write <imagefile> (use - for stdin) to device\n"
" jffs2write <file> append <file> to the jffs2 partition on the device\n");
if (mtd_resetbc) {
fprintf(stderr,
" resetbc <device> reset the uboot boot counter\n");
}
if (mtd_fixtrx) {
fprintf(stderr,
" fixtrx fix the checksum in a trx header on first boot\n");
}
if (mtd_fixseama) {
fprintf(stderr,
" fixseama fix the checksum in a seama header on first boot\n");
}
if (mtd_fixwrg) {
fprintf(stderr,
" fixwrg fix the checksum in a wrg header on first boot\n");
}
if (mtd_fixwrgg) {
fprintf(stderr,
" fixwrgg fix the checksum in a wrgg header on first boot\n");
}
fprintf(stderr,
"Following options are available:\n"
" -q quiet mode (once: no [w] on writing,\n"
" twice: no status messages)\n"
" -n write without first erasing the blocks\n"
" -r reboot after successful command\n"
" -f force write without trx checks\n"
" -e <device> erase <device> before executing the command\n"
" -d <name> directory for jffs2write, defaults to \"tmp\"\n"
" -j <name> integrate <file> into jffs2 data when writing an image\n"
" -s <number> skip the first n bytes when appending data to the jffs2 partiton, defaults to \"0\"\n"
" -p <number> write beginning at partition offset\n"
" -l <length> the length of data that we want to dump\n");
if (mtd_fixtrx) {
fprintf(stderr,
" -o offset offset of the image header in the partition(for fixtrx)\n");
}
if (mtd_fixtrx || mtd_fixseama || mtd_fixwrg || mtd_fixwrgg) {
fprintf(stderr,
" -c datasize amount of data to be used for checksum calculation (for fixtrx / fixseama / fixwrg / fixwrgg)\n");
}
fprintf(stderr,
#ifdef FIS_SUPPORT
" -F <part>[:<size>[:<entrypoint>]][,<part>...]\n"
" alter the fis partition table to create new partitions replacing\n"
" the partitions provided as argument to the write command\n"
" (only valid together with the write command)\n"
#endif
"\n"
"Example: To write linux.trx to mtd4 labeled as linux and reboot afterwards\n"
" mtd -r write linux.trx linux\n\n");
exit(1);
}
static void do_reboot(void)
{
fprintf(stderr, "Rebooting ...\n");
fflush(stderr);
/* try regular reboot method first */
system("/sbin/reboot");
sleep(2);
/* if we're still alive at this point, force the kernel to reboot */
syscall(SYS_reboot,LINUX_REBOOT_MAGIC1,LINUX_REBOOT_MAGIC2,LINUX_REBOOT_CMD_RESTART,NULL);
}
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, data_size = 0, part_offset = 0, dump_len = 0;
enum {
CMD_ERASE,
CMD_WRITE,
CMD_UNLOCK,
CMD_JFFS2WRITE,
CMD_FIXTRX,
CMD_FIXSEAMA,
CMD_FIXWRG,
CMD_FIXWRGG,
CMD_VERIFY,
CMD_DUMP,
CMD_RESETBC,
} 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:c: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;
case 'c':
errno = 0;
data_size = strtoul(optarg, 0, 0);
if (errno) {
fprintf(stderr, "-c: 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], "resetbc") == 0) && (argc == 2)) && mtd_resetbc) {
cmd = CMD_RESETBC;
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], "fixwrg") == 0) && (argc == 2)) && mtd_fixwrg) {
cmd = CMD_FIXWRG;
device = argv[1];
} else if (((strcmp(argv[0], "fixwrgg") == 0) && (argc == 2)) && mtd_fixwrgg) {
cmd = CMD_FIXWRGG;
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, data_size);
}
break;
case CMD_RESETBC:
if (mtd_resetbc) {
mtd_resetbc(device);
}
break;
case CMD_FIXSEAMA:
if (mtd_fixseama)
mtd_fixseama(device, 0, data_size);
break;
case CMD_FIXWRG:
if (mtd_fixwrg)
mtd_fixwrg(device, 0, data_size);
break;
case CMD_FIXWRGG:
if (mtd_fixwrgg)
mtd_fixwrgg(device, 0, data_size);
break;
}
sync();
if (boot)
do_reboot();
return 0;
}
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