#include "mtd-api.h"
#include "fis.h"
#include "mtd.h"
-#include "crc32.h"
#define MAX_ARGS 8
#define JFFS2_DEFAULT_DIR "" /* directory name without /, empty means root dir */
-#if __BYTE_ORDER == __BIG_ENDIAN
-#define STORE32_LE(X) ((((X) & 0x000000FF) << 24) | (((X) & 0x0000FF00) << 8) | (((X) & 0x00FF0000) >> 8) | (((X) & 0xFF000000) >> 24))
-#elif __BYTE_ORDER == __LITTLE_ENDIAN
-#define STORE32_LE(X) (X)
-#else
-#error unkown endianness!
-#endif
-
-ssize_t pread(int fd, void *buf, size_t count, off_t offset);
-ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset);
-
-#define TRX_MAGIC 0x30524448 /* "HDR0" */
-struct trx_header {
- uint32_t magic; /* "HDR0" */
- uint32_t len; /* Length of file including header */
- uint32_t crc32; /* 32-bit CRC from flag_version to end of file */
- uint32_t flag_version; /* 0:15 flags, 16:31 version */
- uint32_t offsets[3]; /* Offsets of partitions from start of header */
-};
-
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;
image_check(int imagefd, const char *mtd)
{
int ret = 1;
-#ifdef target_brcm
- ret = trx_check(imagefd, mtd, buf, &buflen);
-#endif
+ if (trx_check) {
+ ret = trx_check(imagefd, mtd, buf, &buflen);
+ }
return ret;
}
}
-static int
-mtd_fixtrx(const char *mtd, size_t offset)
-{
- int fd;
- struct trx_header *trx;
- char *buf;
- ssize_t res;
- size_t block_offset;
-
- if (quiet < 2)
- fprintf(stderr, "Trying to fix trx header in %s at 0x%x...\n", mtd, offset);
-
- block_offset = offset & ~(erasesize - 1);
- offset -= block_offset;
-
- fd = mtd_check_open(mtd);
- if(fd < 0) {
- fprintf(stderr, "Could not open mtd device: %s\n", mtd);
- exit(1);
- }
-
- if (block_offset + erasesize > mtdsize) {
- fprintf(stderr, "Offset too large, device size 0x%x\n", mtdsize);
- exit(1);
- }
-
- buf = malloc(erasesize);
- if (!buf) {
- perror("malloc");
- exit(1);
- }
-
- res = pread(fd, buf, erasesize, block_offset);
- if (res != erasesize) {
- perror("pread");
- exit(1);
- }
-
- trx = (struct trx_header *) (buf + offset);
- if (trx->magic != STORE32_LE(0x30524448)) {
- fprintf(stderr, "No trx magic found\n");
- exit(1);
- }
-
- if (trx->len == STORE32_LE(erasesize - offset)) {
- if (quiet < 2)
- fprintf(stderr, "Header already fixed, exiting\n");
- close(fd);
- return 0;
- }
-
- trx->len = STORE32_LE(erasesize - offset);
-
- trx->crc32 = STORE32_LE(crc32buf((char*) &trx->flag_version, erasesize - offset - 3*4));
- if (mtd_erase_block(fd, block_offset)) {
- fprintf(stderr, "Can't erease block at 0x%x (%s)\n", block_offset, strerror(errno));
- exit(1);
- }
-
- if (quiet < 2)
- fprintf(stderr, "New crc32: 0x%x, rewriting block\n", trx->crc32);
-
- if (pwrite(fd, buf, erasesize, block_offset) != erasesize) {
- fprintf(stderr, "Error writing block (%s)\n", strerror(errno));
- exit(1);
- }
-
- if (quiet < 2)
- fprintf(stderr, "Done.\n");
-
- close (fd);
- sync();
- return 0;
-
-}
-
static int
mtd_refresh(const char *mtd)
{
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)
{
char *str = NULL;
int fd, result;
ssize_t r, w, e;
+ ssize_t skip = 0;
uint32_t offset = 0;
#ifdef FIS_SUPPORT
exit(1);
}
- if (quiet < 2)
- fprintf(stderr, "Writing from %s to %s ... ", imagefile, mtd);
+ indicate_writing(mtd);
w = e = 0;
- if (!quiet)
- fprintf(stderr, " [ ]");
-
for (;;) {
/* buffer may contain data already (from trx check or last mtd partition write attempt) */
while (buflen < erasesize) {
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)
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 */
- mtd_replace_jffs2(mtd, fd, e, jffs2file);
- goto done;
+ skip = mtd_replace_jffs2(mtd, fd, e, jffs2file);
+
+ 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 */
}
/* need to erase the next block before writing data to it */
- 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;
+ 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);
}
- 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;
+ /* erase the chunk */
+ e += erasesize;
+ }
}
if (!quiet)
" 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"
- " fixtrx fix the checksum in a trx header on first boot\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");
+ }
+ 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"
- " -o offset offset of the trx header in the partition (for fixtrx)\n"
+ " -j <name> integrate <file> into jffs2 data when writing an image\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"
force = 0;
buflen = 0;
quiet = 0;
+ no_erase = 0;
while ((ch = getopt(argc, argv,
#ifdef FIS_SUPPORT
"F:"
#endif
- "frqe:d:j:o:")) != -1)
+ "frnqe:d:j:o:")) != -1)
switch (ch) {
case 'f':
force = 1;
case 'r':
boot = 1;
break;
+ case 'n':
+ no_erase = 1;
+ break;
case 'j':
jffs2file = optarg;
break;
jffs2dir = optarg;
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) {
} else if ((strcmp(argv[0], "erase") == 0) && (argc == 2)) {
cmd = CMD_ERASE;
device = argv[1];
- } else if ((strcmp(argv[0], "fixtrx") == 0) && (argc == 2)) {
+ } else if (((strcmp(argv[0], "fixtrx") == 0) && (argc == 2)) && mtd_fixtrx) {
cmd = CMD_FIXTRX;
device = argv[1];
} else if ((strcmp(argv[0], "write") == 0) && (argc == 3)) {
mtd_refresh(device);
break;
case CMD_FIXTRX:
- mtd_fixtrx(device, offset);
+ if (mtd_fixtrx) {
+ mtd_fixtrx(device, offset);
+ }
break;
}
projects / openwrt.git / blobdiff