him411/openwrt-6.x
1
0
Fork 0
mirror of https://github.com/LiBwrt-op/openwrt-6.x.git synced 2025-12-16 08:44:50 +00:00
Code Issues Packages Projects Releases Wiki Activity

mtd: allow to use dump and verify on read-only devices

Browse Source 
Dump and verify commands can be used on read-only devices.

Signed-off-by: Paweł Owoc <frut3k7@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/20725
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Paweł Owoc 2025-11-09 11:21:37 +01:00 committed by Hauke Mehrtens
parent 7ea659503a
commit 693db5945b
12 changed files with 31 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
package/system/mtd/Makefile
View File

@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk
PKG_NAME:=mtd
PKG_RELEASE:=26
PKG_RELEASE:=27
PKG_BUILD_DIR := $(KERNEL_BUILD_DIR)/$(PKG_NAME)
STAMP_PREPARED := $(STAMP_PREPARED)_$(call confvar,CONFIG_MTD_REDBOOT_PARTS)

4
package/system/mtd/src/fis.c
View File

@ -67,12 +67,12 @@ fis_open(void)
if (fis_fd >= 0)
fis_close();
fis_fd = mtd_check_open("FIS directory");
fis_fd = mtd_check_open("FIS directory", true);
if (fis_fd < 0)
goto error;
close(fis_fd);
fis_fd = mtd_open("FIS directory", true);
fis_fd = mtd_open("FIS directory", true, true);
if (fis_fd < 0)
goto error;

6
package/system/mtd/src/imagetag.c
View File

@ -195,7 +195,7 @@ trx_fixup(int fd, const char *name)
goto err;
}
bfd = mtd_open(name, true);
bfd = mtd_open(name, true, true);
ptr = mmap(NULL, len, PROT_READ|PROT_WRITE, MAP_SHARED, bfd, 0);
if (!ptr || (ptr == (void *) -1)) {
perror("mmap");
@ -269,7 +269,7 @@ trx_check(int imagefd, const char *mtd, char *buf, int *len)
}
/* check if image fits to mtd device */
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
@ -308,7 +308,7 @@ mtd_fixtrx(const char *mtd, size_t offset, size_t data_size)
block_offset = offset & ~(erasesize - 1);
offset -= block_offset;
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);

2
package/system/mtd/src/jffs2.c
View File

@ -287,7 +287,7 @@ int mtd_write_jffs2(const char *mtd, const char *filename, const char *dir)
{
int err = -1, fdeof = 0;
outfd = mtd_check_open(mtd);
outfd = mtd_check_open(mtd, true);
if (outfd < 0)
return -1;

2
package/system/mtd/src/linksys_bootcount.c
View File

@ -83,7 +83,7 @@ int mtd_resetbc(const char *mtd)
DLOG_OPEN();
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if (ioctl(fd, MEMGETINFO, &mtd_info) < 0) {
DLOG_ERR("Unable to obtain mtd_info for given partition name.");

24
package/system/mtd/src/mtd.c
View File

@ -96,15 +96,19 @@ int jffs2_skip_bytes=0;
int mtdtype = 0;
uint32_t opt_trxmagic = TRX_MAGIC;
int mtd_open(const char *mtd, bool block)
int mtd_open(const char *mtd, bool block, bool write_mode)
{
FILE *fp;
char dev[PATH_MAX];
int i;
int ret;
int flags = O_RDWR | O_SYNC;
int flags = O_RDONLY;
char name[PATH_MAX];
if(write_mode) {
flags = O_RDWR | O_SYNC;
}
snprintf(name, sizeof(name), "\"%s\"", mtd);
if ((fp = fopen("/proc/mtd", "r"))) {
while (fgets(dev, sizeof(dev), fp)) {
@ -124,12 +128,12 @@ int mtd_open(const char *mtd, bool block)
return open(mtd, flags);
}
int mtd_check_open(const char *mtd)
int mtd_check_open(const char *mtd, bool write_mode)
{
struct mtd_info_user mtdInfo;
int fd;
fd = mtd_open(mtd, false);
fd = mtd_open(mtd, false, write_mode);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
return -1;
@ -253,7 +257,7 @@ static int mtd_check(const char *mtd)
next++;
}
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if (fd < 0)
return 0;
@ -290,7 +294,7 @@ mtd_unlock(const char *mtd)
next++;
}
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
@ -321,7 +325,7 @@ mtd_erase(const char *mtd)
if (quiet < 2)
fprintf(stderr, "Erasing %s ...\n", mtd);
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
@ -357,7 +361,7 @@ mtd_dump(const char *mtd, int part_offset, int size)
if (quiet < 2)
fprintf(stderr, "Dumping %s ...\n", mtd);
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, false);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
return -1;
@ -416,7 +420,7 @@ mtd_verify(const char *mtd, char *file)
return -1;
}
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, false);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
return -1;
@ -551,7 +555,7 @@ resume:
next++;
}
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);

4
package/system/mtd/src/mtd.h
View File

@ -15,8 +15,8 @@ extern int mtdsize;
extern int erasesize;
extern uint32_t opt_trxmagic;
extern int mtd_open(const char *mtd, bool block);
extern int mtd_check_open(const char *mtd);
extern int mtd_open(const char *mtd, bool block, bool write_mode);
extern int mtd_check_open(const char *mtd, bool write_mode);
extern int mtd_block_is_bad(int fd, int offset);
extern int mtd_erase_block(int fd, int offset);
extern int mtd_write_buffer(int fd, const char *buf, int offset, int length);

2
package/system/mtd/src/seama.c
View File

@ -121,7 +121,7 @@ mtd_fixseama(const char *mtd, size_t offset, size_t data_size)
block_offset = offset & ~(erasesize - 1);
offset -= block_offset;
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);

2
package/system/mtd/src/tpl_ramips_recoveryflag.c
View File

@ -49,7 +49,7 @@ int mtd_tpl_recoverflag_write(const char *mtd, const bool recovery_active)
return -1;
}
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if (fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
ret = -1;

6
package/system/mtd/src/trx.c
View File

@ -83,7 +83,7 @@ trx_fixup(int fd, const char *name)
goto err;
}
bfd = mtd_open(name, true);
bfd = mtd_open(name, true, true);
ptr = mmap(NULL, len, PROT_READ|PROT_WRITE, MAP_SHARED, bfd, 0);
if (!ptr || (ptr == (void *) -1)) {
perror("mmap");
@ -138,7 +138,7 @@ trx_check(int imagefd, const char *mtd, char *buf, int *len)
}
/* check if image fits to mtd device */
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);
@ -168,7 +168,7 @@ mtd_fixtrx(const char *mtd, size_t offset, size_t data_size)
if (quiet < 2)
fprintf(stderr, "Trying to fix trx header in %s at 0x%zx...\n", mtd, offset);
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);

2
package/system/mtd/src/wrg.c
View File

@ -141,7 +141,7 @@ mtd_fixwrg(const char *mtd, size_t offset, size_t data_size)
block_offset = offset & ~(erasesize - 1);
offset -= block_offset;
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);

2
package/system/mtd/src/wrgg.c
View File

@ -119,7 +119,7 @@ mtd_fixwrgg(const char *mtd, size_t offset, size_t data_size)
block_offset = offset & ~(erasesize - 1);
offset -= block_offset;
fd = mtd_check_open(mtd);
fd = mtd_check_open(mtd, true);
if(fd < 0) {
fprintf(stderr, "Could not open mtd device: %s\n", mtd);
exit(1);