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-rw-r--r--package/mtd/src/Makefile6
-rw-r--r--package/mtd/src/jffs2.c13
-rw-r--r--package/mtd/src/mtd.c84
-rw-r--r--package/mtd/src/mtd.h14
-rw-r--r--package/mtd/src/trx.c165
5 files changed, 204 insertions, 78 deletions
diff --git a/package/mtd/src/Makefile b/package/mtd/src/Makefile
index 5ab7d7b..68a632d 100644
--- a/package/mtd/src/Makefile
+++ b/package/mtd/src/Makefile
@@ -1,6 +1,10 @@
CC = gcc
CFLAGS += -Wall
-mtd: mtd.o jffs2.o crc32.o
+obj = mtd.o jffs2.o crc32.o
+obj.brcm = trx.o
+obj.brcm47xx = $(obj.brcm)
+
+mtd: $(obj) $(obj.$(TARGET))
clean:
rm -f *.o jffs2
diff --git a/package/mtd/src/jffs2.c b/package/mtd/src/jffs2.c
index d1c6fb6..5654f93 100644
--- a/package/mtd/src/jffs2.c
+++ b/package/mtd/src/jffs2.c
@@ -140,7 +140,6 @@ static void add_file(const char *name, int parent)
struct stat st;
char wbuf[4096];
const char *fname;
- FILE *f;
if (stat(name, &st)) {
fprintf(stderr, "File %s does not exist\n", name);
@@ -210,7 +209,7 @@ static void add_file(const char *name, int parent)
close(fd);
}
-int mtd_replace_jffs2(int fd, int ofs, const char *filename)
+int mtd_replace_jffs2(const char *mtd, int fd, int ofs, const char *filename)
{
outfd = fd;
mtdofs = ofs;
@@ -226,6 +225,11 @@ int mtd_replace_jffs2(int fd, int ofs, const char *filename)
add_data(JFFS2_EOF, sizeof(JFFS2_EOF) - 1);
pad(erasesize);
free(buf);
+
+#ifdef target_brcm
+ trx_fixup(outfd, mtd);
+#endif
+ return 0;
}
void mtd_parse_jffs2data(const char *buf, const char *dir)
@@ -258,7 +262,6 @@ void mtd_parse_jffs2data(const char *buf, const char *dir)
int mtd_write_jffs2(const char *mtd, const char *filename, const char *dir)
{
int err = -1, fdeof = 0;
- off_t offset;
outfd = mtd_check_open(mtd);
if (!outfd)
@@ -326,6 +329,10 @@ int mtd_write_jffs2(const char *mtd, const char *filename, const char *dir)
err = 0;
+#ifdef target_brcm
+ trx_fixup(outfd, mtd);
+#endif
+
done:
close(outfd);
if (buf)
diff --git a/package/mtd/src/mtd.c b/package/mtd/src/mtd.c
index 18a73a0..18c3e97 100644
--- a/package/mtd/src/mtd.c
+++ b/package/mtd/src/mtd.c
@@ -46,21 +46,9 @@
#include "mtd-api.h"
#include "mtd.h"
-#ifdef target_brcm47xx
-#define target_brcm 1
-#endif
-
-#define TRX_MAGIC 0x30524448 /* "HDR0" */
#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 */
@@ -77,7 +65,7 @@ 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];
@@ -88,9 +76,9 @@ int mtd_open(const char *mtd)
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);
@@ -108,7 +96,7 @@ int mtd_check_open(const char *mtd)
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;
@@ -136,68 +124,22 @@ int mtd_erase_block(int fd, int offset)
fprintf(stderr, "Erasing mtd failed.\n");
exit(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;
}
-#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;
-
#ifdef target_brcm
- return image_check_brcm(imagefd, mtd);
+ return trx_check(imagefd, mtd, buf, &buflen);
#endif
}
@@ -303,10 +245,8 @@ mtd_refresh(const char *mtd)
static int
mtd_write(int imagefd, const char *mtd)
{
- int fd, i, result;
+ int fd, result;
size_t r, w, e;
- struct erase_info_user mtdEraseInfo;
- int ret = 0;
fd = mtd_check_open(mtd);
if(fd < 0) {
@@ -336,7 +276,7 @@ mtd_write(int imagefd, const char *mtd)
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(fd, e, jffs2file);
+ mtd_replace_jffs2(mtd, fd, e, jffs2file);
goto done;
}
/* no EOF marker, make sure we figure out the last inode number
@@ -425,15 +365,15 @@ static void do_reboot(void)
int main (int argc, char **argv)
{
- int ch, i, boot, unlock, imagefd, force, unlocked;
- char *erase[MAX_ARGS], *device;
+ 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;
diff --git a/package/mtd/src/mtd.h b/package/mtd/src/mtd.h
index 42b6610..a018031 100644
--- a/package/mtd/src/mtd.h
+++ b/package/mtd/src/mtd.h
@@ -1,18 +1,28 @@
#ifndef __mtd_h
#define __mtd_h
+#include <stdbool.h>
+
+#ifdef target_brcm47xx
+#define target_brcm 1
+#endif
+
#define JFFS2_EOF "\xde\xad\xc0\xde"
extern int quiet;
extern int mtdsize;
extern int erasesize;
-extern int mtd_open(const char *mtd);
+extern int mtd_open(const char *mtd, bool block);
extern int mtd_check_open(const char *mtd);
extern int mtd_erase_block(int fd, int offset);
extern int mtd_write_buffer(int fd, const char *buf, int offset, int length);
extern int mtd_write_jffs2(const char *mtd, const char *filename, const char *dir);
-extern int mtd_replace_jffs2(int fd, int ofs, const char *filename);
+extern int mtd_replace_jffs2(const char *mtd, int fd, int ofs, const char *filename);
extern void mtd_parse_jffs2data(const char *buf, const char *dir);
+/* target specific */
+extern int trx_fixup(int fd, const char *name);
+extern int trx_check(int imagefd, const char *mtd, char *buf, int *len);
+
#endif /* __mtd_h */
diff --git a/package/mtd/src/trx.c b/package/mtd/src/trx.c
new file mode 100644
index 0000000..5457a36
--- /dev/null
+++ b/package/mtd/src/trx.c
@@ -0,0 +1,165 @@
+/*
+ * trx.c
+ *
+ * Copyright (C) 2005 Mike Baker
+ * Copyright (C) 2008 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
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <string.h>
+
+#include <sys/ioctl.h>
+#include "mtd-api.h"
+#include "mtd.h"
+
+#define TRX_MAGIC 0x30524448 /* "HDR0" */
+struct trx_header {
+ unsigned magic; /* "HDR0" */
+ unsigned len; /* Length of file including header */
+ unsigned crc32; /* 32-bit CRC from flag_version to end of file */
+ unsigned flag_version; /* 0:15 flags, 16:31 version */
+ unsigned offsets[3]; /* Offsets of partitions from start of header */
+};
+
+static unsigned long *crc32 = NULL;
+
+static void init_crc32()
+{
+ unsigned long crc;
+ unsigned long poly = 0xEDB88320L;
+ int n, bit;
+
+ if (crc32)
+ return;
+
+ crc32 = (unsigned long *) malloc(256 * sizeof(unsigned long));
+ if (!crc32) {
+ perror("malloc");
+ exit(1);
+ }
+
+ for (n = 0; n < 256; n++) {
+ crc = (unsigned long) n;
+ for (bit = 0; bit < 8; bit++)
+ crc = (crc & 1) ? (poly ^ (crc >> 1)) : (crc >> 1);
+ crc32[n] = crc;
+ }
+}
+
+static unsigned int crc32buf(char *buf, size_t len)
+{
+ unsigned int crc = 0xFFFFFFFF;
+ for (; len; len--, buf++)
+ crc = crc32[(crc ^ *buf) & 0xff] ^ (crc >> 8);
+ return crc;
+}
+
+int
+trx_fixup(int fd, const char *name)
+{
+ struct mtd_info_user mtdInfo;
+ unsigned long len;
+ struct trx_header *trx;
+ void *ptr, *scan;
+ int bfd;
+
+ if (ioctl(fd, MEMGETINFO, &mtdInfo) < 0) {
+ fprintf(stderr, "Failed to get mtd info\n");
+ goto err;
+ }
+
+ len = mtdInfo.size;
+ if (mtdInfo.size <= 0) {
+ fprintf(stderr, "Invalid MTD device size\n");
+ goto err;
+ }
+
+ bfd = mtd_open(name, true);
+ ptr = mmap(NULL, len, PROT_READ|PROT_WRITE, MAP_SHARED, bfd, 0);
+ if (!ptr || (ptr == (void *) -1)) {
+ perror("mmap");
+ goto err1;
+ }
+
+ trx = ptr;
+ if (trx->magic != TRX_MAGIC) {
+ fprintf(stderr, "TRX header not found\n");
+ goto err;
+ }
+
+ init_crc32();
+ scan = ptr + offsetof(struct trx_header, flag_version);
+ trx->crc32 = crc32buf(scan, trx->len - (scan - ptr));
+ msync(ptr, sizeof(struct trx_header), MS_SYNC|MS_INVALIDATE);
+ munmap(ptr, len);
+ close(bfd);
+ return 0;
+
+err1:
+ close(bfd);
+err:
+ fprintf(stderr, "Error fixing up TRX header\n");
+ return -1;
+}
+
+int
+trx_check(int imagefd, const char *mtd, char *buf, int *len)
+{
+ const struct trx_header *trx = (const struct trx_header *) buf;
+ int fd;
+
+ if (strcmp(mtd, "linux") != 0)
+ return 1;
+
+ *len = read(imagefd, buf, 32);
+ if (*len < 32) {
+ fprintf(stdout, "Could not get image header, file too small (%d bytes)\n", *len);
+ 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;
+}
+
generated by cgit v1.1 at 2024-12-30 16:42:31 +0000