* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
- * $Id$
*
* The code is based on the linux-mtd examples.
*/
#include <sys/stat.h>
#include <sys/reboot.h>
#include <linux/reboot.h>
-
#include "mtd-api.h"
+#include "mtd.h"
-#define TRX_MAGIC 0x30524448 /* "HDR0" */
-#define BUFSIZE (16 * 1024)
#define MAX_ARGS 8
-
-#define DEBUG
-
#define JFFS2_DEFAULT_DIR "" /* directory name without /, empty means root dir */
-#define SYSTYPE_UNKNOWN 0
-#define SYSTYPE_BROADCOM 1
-/* to be continued */
-
struct trx_header {
uint32_t magic; /* "HDR0" */
uint32_t len; /* Length of file including header */
uint32_t offsets[3]; /* Offsets of partitions from start of header */
};
-static char buf[BUFSIZE];
-static char *imagefile;
-static int buflen;
+static char *buf = NULL;
+static char *imagefile = NULL;
+static char *jffs2file = NULL, *jffs2dir = JFFS2_DEFAULT_DIR;
+static int buflen = 0;
int quiet;
int mtdsize = 0;
int erasesize = 0;
-int mtd_open(const char *mtd)
+int mtd_open(const char *mtd, bool block)
{
FILE *fp;
char dev[PATH_MAX];
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/%d", i);
+ snprintf(dev, sizeof(dev), "/dev/mtd%s/%d", (block ? "block" : ""), i);
if ((ret=open(dev, flags))<0) {
- snprintf(dev, sizeof(dev), "/dev/mtd%d", i);
+ snprintf(dev, sizeof(dev), "/dev/mtd%s%d", (block ? "block" : ""), i);
ret=open(dev, flags);
}
fclose(fp);
struct mtd_info_user mtdInfo;
int fd;
- fd = mtd_open(mtd);
+ fd = mtd_open(mtd, false);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
return 0;
fprintf(stderr, "Erasing mtd failed.\n");
exit(1);
}
+ return 0;
}
-int mtd_write_buffer(int fd, char *buf, int offset, int length)
+int mtd_write_buffer(int fd, const char *buf, int offset, int length)
{
lseek(fd, offset, SEEK_SET);
write(fd, buf, length);
+ return 0;
}
-#ifdef target_brcm
-static int
-image_check_brcm(int imagefd, const char *mtd)
-{
- struct trx_header *trx = (struct trx_header *) buf;
- int fd;
-
- if (strcmp(mtd, "linux") != 0)
- return 1;
-
- buflen = read(imagefd, buf, 32);
- if (buflen < 32) {
- fprintf(stdout, "Could not get image header, file too small (%ld bytes)\n", buflen);
- return 0;
- }
-
- if (trx->magic != TRX_MAGIC || trx->len < sizeof(struct trx_header)) {
- if (quiet < 2) {
- fprintf(stderr, "Bad trx header\n");
- fprintf(stderr, "This is not the correct file format; refusing to flash.\n"
- "Please specify the correct file or use -f to force.\n");
- }
- return 0;
- }
-
- /* check if image fits to mtd device */
- fd = mtd_check_open(mtd);
- if(fd < 0) {
- fprintf(stderr, "Could not open mtd device: %s\n", mtd);
- exit(1);
- }
-
- if(mtdsize < trx->len) {
- fprintf(stderr, "Image too big for partition: %s\n", mtd);
- close(fd);
- return 0;
- }
-
- close(fd);
- return 1;
-}
-#endif /* target_brcm */
-
static int
image_check(int imagefd, const char *mtd)
{
- int fd, systype;
- size_t count;
- char *c;
- FILE *f;
-
+ int ret = 1;
#ifdef target_brcm
- return image_check_brcm(imagefd, mtd);
+ ret = trx_check(imagefd, mtd, buf, &buflen);
#endif
+ return ret;
}
static int mtd_check(const char *mtd)
if (!fd)
return 0;
+ if (!buf)
+ buf = malloc(erasesize);
+
close(fd);
return 1;
}
static int
mtd_write(int imagefd, const char *mtd)
{
- int fd, i, result;
- size_t r, w, e;
- struct erase_info_user mtdEraseInfo;
- int ret = 0;
+ int fd, result;
+ ssize_t r, w, e;
fd = mtd_check_open(mtd);
if(fd < 0) {
for (;;) {
/* buffer may contain data already (from trx check) */
- r = buflen;
- r += read(imagefd, buf + buflen, BUFSIZE - buflen);
- w += r;
+ do {
+ 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;
+ } while (buflen < erasesize);
- /* EOF */
- if (r <= 0) break;
+ if (buflen == 0)
+ break;
+
+ if (jffs2file) {
+ if (memcmp(buf, JFFS2_EOF, sizeof(JFFS2_EOF)) == 0) {
+ if (!quiet)
+ fprintf(stderr, "\b\b\b ");
+ if (quiet < 2)
+ fprintf(stderr, "\nAppending jffs2 data to from %s to %s...", jffs2file, mtd);
+ /* got an EOF marker - this is the place to add some jffs2 data */
+ mtd_replace_jffs2(mtd, fd, e, jffs2file);
+ goto done;
+ }
+ /* 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 */
- while (w > e) {
+ while (w + buflen > e) {
if (!quiet)
fprintf(stderr, "\b\b\b[e]");
if (!quiet)
fprintf(stderr, "\b\b\b[w]");
- if ((result = write(fd, buf, r)) < r) {
+ if ((result = write(fd, buf, buflen)) < buflen) {
if (result < 0) {
fprintf(stderr, "Error writing image.\n");
exit(1);
exit(1);
}
}
-
+ w += buflen;
+
buflen = 0;
}
if (!quiet)
fprintf(stderr, "\b\b\b\b");
+done:
if (quiet < 2)
fprintf(stderr, "\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"
"\n"
"Example: To write linux.trx to mtd4 labeled as linux and reboot afterwards\n"
" mtd -r write linux.trx linux\n\n");
int main (int argc, char **argv)
{
- int ch, i, boot, unlock, imagefd, force, unlocked;
- char *erase[MAX_ARGS], *device;
- char *jffs2dir = JFFS2_DEFAULT_DIR;
+ int ch, i, boot, imagefd = 0, force, unlocked;
+ char *erase[MAX_ARGS], *device = NULL;
enum {
CMD_ERASE,
CMD_WRITE,
CMD_UNLOCK,
CMD_REFRESH,
CMD_JFFS2WRITE
- } cmd;
+ } cmd = -1;
erase[0] = NULL;
boot = 0;
buflen = 0;
quiet = 0;
- while ((ch = getopt(argc, argv, "frqe:d:")) != -1)
+ while ((ch = getopt(argc, argv, "frqe:d:j:")) != -1)
switch (ch) {
case 'f':
force = 1;
case 'r':
boot = 1;
break;
+ case 'j':
+ jffs2file = optarg;
+ break;
case 'q':
quiet++;
break;
}
}
+ 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)) {
- if (!force) {
- fprintf(stderr, "Image check failed.\n");
- exit(1);
- }
- } else {
- if (!mtd_check(device)) {
- fprintf(stderr, "Can't open device for writing!\n");
- exit(1);
- }
+ 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;
projects / openwrt.git / blobdiff