+++ /dev/null
-/*
- * mtd - simple memory technology device manipulation tool
- *
- * Copyright (C) 2005 Waldemar Brodkorb <wbx@dass-it.de>,
- * Copyright (C) 2005-2009 Felix Fietkau <nbd@openwrt.org>
- *
- * 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.
- */
-
-#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"
-
-#ifndef MTDREFRESH
-#define MTDREFRESH _IO('M', 50)
-#endif
-
-#define MAX_ARGS 8
-#define JFFS2_DEFAULT_DIR "" /* directory name without /, empty means root dir */
-
-static char *buf = NULL;
-static char *imagefile = NULL;
-static char *jffs2file = NULL, *jffs2dir = JFFS2_DEFAULT_DIR;
-static int buflen = 0;
-int quiet;
-int no_erase;
-int mtdsize = 0;
-int erasesize = 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;
-
- if ((fp = fopen("/proc/mtd", "r"))) {
- while (fgets(dev, sizeof(dev), fp)) {
- if (sscanf(dev, "mtd%d:", &i) && strstr(dev, mtd)) {
- 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;
-
- return fd;
-}
-
-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)
-{
- int ret = 1;
- if (trx_check) {
- ret = trx_check(imagefd, mtd, buf, &buflen);
- }
-
- 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) {
-
- 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_refresh(const char *mtd)
-{
- int fd;
-
- if (quiet < 2)
- fprintf(stderr, "Refreshing mtd partition %s ... ", mtd);
-
- fd = mtd_check_open(mtd);
- if(fd < 0) {
- fprintf(stderr, "Could not open mtd device: %s\n", mtd);
- exit(1);
- }
-
- if (ioctl(fd, MTDREFRESH, NULL)) {
- fprintf(stderr, "Failed to refresh the MTD device\n");
- close(fd);
- exit(1);
- }
- close(fd);
-
- if (quiet < 2)
- fprintf(stderr, "\n");
-
- return 0;
-}
-
-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;
-
-#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: %u\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 (skip > 0) {
- skip -= buflen;
- buflen = 0;
- if (skip <= 0)
- indicate_writing(mtd);
-
- continue;
- }
-
- if (jffs2file) {
- 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...", 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) {
- if (!quiet)
- fprintf(stderr, "\b\b\b[e]");
-
-
- 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 && trx_fixup) {
- trx_fixup(fd, mtd);
- }
-
- if (!quiet)
- fprintf(stderr, "\b\b\b\b ");
-
-done:
- 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"
- " write <imagefile>|- write <imagefile> (use - for stdin) to device\n"
- " jffs2write <file> append <file> to the jffs2 partition on the device\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");
- }
- 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"
- " -p write beginning at partition offset\n");
- if (mtd_fixtrx) {
- fprintf(stderr,
- " -o offset offset of the image header in the partition(for fixtrx)\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, part_offset = 0;
- enum {
- CMD_ERASE,
- CMD_WRITE,
- CMD_UNLOCK,
- CMD_REFRESH,
- CMD_JFFS2WRITE,
- CMD_FIXTRX,
- CMD_FIXSEAMA,
- } 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:j:p:o:")) != -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 '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 'o':
- if (!mtd_fixtrx) {
- fprintf(stderr, "-o: is not available on this platform\n");
- usage();
- }
- 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], "refresh") == 0) && (argc == 2)) {
- cmd = CMD_REFRESH;
- 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], "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_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_REFRESH:
- mtd_refresh(device);
- 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;
-}
projects / openwrt / openwrt.git / blobdiff