diff options
| -rw-r--r-- | package/system/mtd/Makefile | 2 | ||||
| -rw-r--r-- | package/system/mtd/src/Makefile | 3 | ||||
| -rw-r--r-- | package/system/mtd/src/mtd.c | 33 | ||||
| -rw-r--r-- | package/system/mtd/src/mtd.h | 1 | ||||
| -rw-r--r-- | package/system/mtd/src/tpl_ramips_recoveryflag.c | 94 |
5 files changed, 130 insertions, 3 deletions
diff --git a/package/system/mtd/Makefile b/package/system/mtd/Makefile index 65de47f23f..c307555436 100644 --- a/package/system/mtd/Makefile +++ b/package/system/mtd/Makefile @@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk include $(INCLUDE_DIR)/kernel.mk PKG_NAME:=mtd -PKG_RELEASE:=23 +PKG_RELEASE:=24 PKG_BUILD_DIR := $(KERNEL_BUILD_DIR)/$(PKG_NAME) STAMP_PREPARED := $(STAMP_PREPARED)_$(call confvar,CONFIG_MTD_REDBOOT_PARTS) diff --git a/package/system/mtd/src/Makefile b/package/system/mtd/src/Makefile index 27044672cd..08a9fb295d 100644 --- a/package/system/mtd/src/Makefile +++ b/package/system/mtd/src/Makefile @@ -6,12 +6,13 @@ obj = mtd.o jffs2.o crc32.o md5.o obj.seama = seama.o md5.o obj.wrg = wrg.o md5.o obj.wrgg = wrgg.o md5.o +obj.tpl = tpl_ramips_recoveryflag.o obj.ar71xx = trx.o $(obj.seama) $(obj.wrgg) obj.brcm = trx.o obj.brcm47xx = $(obj.brcm) obj.bcm53xx = $(obj.brcm) $(obj.seama) obj.brcm63xx = imagetag.o -obj.ramips = $(obj.seama) $(obj.wrg) +obj.ramips = $(obj.seama) $(obj.tpl) $(obj.wrg) obj.mvebu = linksys_bootcount.o obj.kirkwood = linksys_bootcount.o obj.ipq806x = linksys_bootcount.o diff --git a/package/system/mtd/src/mtd.c b/package/system/mtd/src/mtd.c index fa04c0f95b..eccb4f6a1a 100644 --- a/package/system/mtd/src/mtd.c +++ b/package/system/mtd/src/mtd.c @@ -85,6 +85,7 @@ static char *buf = NULL; static char *imagefile = NULL; static enum mtd_image_format imageformat = MTD_IMAGE_FORMAT_UNKNOWN; static char *jffs2file = NULL, *jffs2dir = JFFS2_DEFAULT_DIR; +static char *tpl_uboot_args_part; static int buflen = 0; int quiet; int no_erase; @@ -554,6 +555,17 @@ resume: lseek(fd, part_offset, SEEK_SET); } + /* Write TP-Link recovery flag */ + if (tpl_uboot_args_part && mtd_tpl_recoverflag_write) { + if (quiet < 2) + fprintf(stderr, "Writing recovery flag to %s\n", tpl_uboot_args_part); + result = mtd_tpl_recoverflag_write(tpl_uboot_args_part, true); + if (result < 0) { + fprintf(stderr, "Could not write TP-Link recovery flag to %s: %i", mtd, result); + exit(1); + } + } + indicate_writing(mtd); w = e = 0; @@ -716,6 +728,18 @@ resume: #endif close(fd); + + /* Clear TP-Link recovery flag */ + if (tpl_uboot_args_part && mtd_tpl_recoverflag_write) { + if (quiet < 2) + fprintf(stderr, "Removing recovery flag from %s\n", tpl_uboot_args_part); + result = mtd_tpl_recoverflag_write(tpl_uboot_args_part, false); + if (result < 0) { + fprintf(stderr, "Could not clear TP-Link recovery flag to %s: %i", mtd, result); + exit(1); + } + } + return 0; } @@ -771,6 +795,10 @@ static void usage(void) fprintf(stderr, " -c datasize amount of data to be used for checksum calculation (for fixtrx / fixseama / fixwrg / fixwrgg)\n"); } + if (mtd_tpl_recoverflag_write) { + fprintf(stderr, + " -t <partition> write TP-Link recovery-flag to <partition> (for write)\n"); + } fprintf(stderr, #ifdef FIS_SUPPORT " -F <part>[:<size>[:<entrypoint>]][,<part>...]\n" @@ -828,7 +856,7 @@ int main (int argc, char **argv) #ifdef FIS_SUPPORT "F:" #endif - "frnqe:d:s:j:p:o:c:l:")) != -1) + "frnqe:d:s:j:p:o:c:t:l:")) != -1) switch (ch) { case 'f': force = 1; @@ -896,6 +924,9 @@ int main (int argc, char **argv) usage(); } break; + case 't': + tpl_uboot_args_part = optarg; + break; #ifdef FIS_SUPPORT case 'F': fis_layout = optarg; diff --git a/package/system/mtd/src/mtd.h b/package/system/mtd/src/mtd.h index 0250a90e0b..3eda6159c6 100644 --- a/package/system/mtd/src/mtd.h +++ b/package/system/mtd/src/mtd.h @@ -30,4 +30,5 @@ extern int mtd_fixseama(const char *mtd, size_t offset, size_t data_size) __attr extern int mtd_fixwrg(const char *mtd, size_t offset, size_t data_size) __attribute__ ((weak)); extern int mtd_fixwrgg(const char *mtd, size_t offset, size_t data_size) __attribute__ ((weak)); extern int mtd_resetbc(const char *mtd) __attribute__ ((weak)); +extern int mtd_tpl_recoverflag_write(const char *mtd, const bool recovery_active) __attribute__ ((weak)); #endif /* __mtd_h */ diff --git a/package/system/mtd/src/tpl_ramips_recoveryflag.c b/package/system/mtd/src/tpl_ramips_recoveryflag.c new file mode 100644 index 0000000000..3711e01317 --- /dev/null +++ b/package/system/mtd/src/tpl_ramips_recoveryflag.c @@ -0,0 +1,94 @@ +/* + * TP-Link recovery flag set and unset code for ramips target + * + * Copyright (C) 2018 David Bauer <mail@david-bauer.net> + * + * 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. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <stddef.h> +#include <unistd.h> +#include <sys/mman.h> +#include <errno.h> +#include <stdint.h> + +#include <mtd/mtd-user.h> +#include <sys/ioctl.h> + +#include "mtd.h" + + +#define TPL_RECOVER_MAGIC 0x89abcdef +#define TPL_NO_RECOVER_MAGIC 0x00000000 + + +struct uboot_args { + uint32_t magic; +}; + +int mtd_tpl_recoverflag_write(const char *mtd, const bool recovery_active) +{ + struct erase_info_user erase_info; + struct uboot_args *args; + uint32_t magic; + int ret = 0; + int fd; + + args = malloc(erasesize); + if (!args) { + fprintf(stderr, "Could not allocate memory!\n"); + return -1; + } + + fd = mtd_check_open(mtd); + if (fd < 0) { + fprintf(stderr, "Could not open mtd device: %s\n", mtd); + ret = -1; + goto out; + } + + /* read first block (containing the magic) */ + pread(fd, args, erasesize, 0); + + /* set magic to desired value */ + magic = TPL_RECOVER_MAGIC; + if (!recovery_active) + magic = TPL_NO_RECOVER_MAGIC; + + /* no need to write when magic is already set correctly */ + if (magic == args->magic) + goto out; + + /* erase first block (containing the magic) */ + erase_info.start = 0; + erase_info.length = erasesize; + + ret = ioctl(fd, MEMERASE, &erase_info); + if (ret < 0) { + fprintf(stderr, "failed to erase block: %i\n", ret); + goto out; + } + + /* write magic to flash */ + args->magic = magic; + + ret = pwrite(fd, args, erasesize, 0); + if (ret < 0) + fprintf(stderr, "failed to write: %i\n", ret); + + sync(); +out: + free(args); + close(fd); + + return ret; +} |