diff options
Diffstat (limited to 'target/linux/generic')
| -rw-r--r-- | target/linux/generic/config-3.18 | 1 | ||||
| -rw-r--r-- | target/linux/generic/config-4.1 | 1 | ||||
| -rw-r--r-- | target/linux/generic/config-4.4 | 1 | ||||
| -rw-r--r-- | target/linux/generic/files/drivers/mtd/mtdsplit/Kconfig | 5 | ||||
| -rw-r--r-- | target/linux/generic/files/drivers/mtd/mtdsplit/Makefile | 1 | ||||
| -rw-r--r-- | target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_wrgg.c | 109 |
6 files changed, 118 insertions, 0 deletions
diff --git a/target/linux/generic/config-3.18 b/target/linux/generic/config-3.18 index 0ccd9ac756..8b70c7d54c 100644 --- a/target/linux/generic/config-3.18 +++ b/target/linux/generic/config-3.18 @@ -2282,6 +2282,7 @@ CONFIG_MTD_SPLIT_SUPPORT=y # CONFIG_MTD_SPLIT_TRX_FW is not set # CONFIG_MTD_SPLIT_TPLINK_FW is not set # CONFIG_MTD_SPLIT_UIMAGE_FW is not set +# CONFIG_MTD_SPLIT_WRGG_FW is not set # CONFIG_MTD_SST25L is not set # CONFIG_MTD_SWAP is not set # CONFIG_MTD_TESTS is not set diff --git a/target/linux/generic/config-4.1 b/target/linux/generic/config-4.1 index fc7359e9d6..68bd8498fb 100644 --- a/target/linux/generic/config-4.1 +++ b/target/linux/generic/config-4.1 @@ -2375,6 +2375,7 @@ CONFIG_MTD_SPLIT_SUPPORT=y # CONFIG_MTD_SPLIT_TRX_FW is not set # CONFIG_MTD_SPLIT_TPLINK_FW is not set # CONFIG_MTD_SPLIT_UIMAGE_FW is not set +# CONFIG_MTD_SPLIT_WRGG_FW is not set # CONFIG_MTD_SST25L is not set # CONFIG_MTD_SWAP is not set # CONFIG_MTD_TESTS is not set diff --git a/target/linux/generic/config-4.4 b/target/linux/generic/config-4.4 index 687c18386b..32b291fd54 100644 --- a/target/linux/generic/config-4.4 +++ b/target/linux/generic/config-4.4 @@ -2365,6 +2365,7 @@ CONFIG_MTD_SPLIT_SUPPORT=y # CONFIG_MTD_SPLIT_TPLINK_FW is not set # CONFIG_MTD_SPLIT_TRX_FW is not set # CONFIG_MTD_SPLIT_UIMAGE_FW is not set +# CONFIG_MTD_SPLIT_WRGG_FW is not set # CONFIG_MTD_SST25L is not set # CONFIG_MTD_SWAP is not set # CONFIG_MTD_TESTS is not set diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/Kconfig b/target/linux/generic/files/drivers/mtd/mtdsplit/Kconfig index 131a74fd30..7e653e78a1 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/Kconfig +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/Kconfig @@ -25,6 +25,11 @@ config MTD_SPLIT_SEAMA_FW depends on MTD_SPLIT_SUPPORT select MTD_SPLIT +config MTD_SPLIT_WRGG_FW + bool "WRGG firmware parser" + depends on MTD_SPLIT_SUPPORT + select MTD_SPLIT + config MTD_SPLIT_UIMAGE_FW bool "uImage based firmware partition parser" depends on MTD_SPLIT_SUPPORT diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/Makefile b/target/linux/generic/files/drivers/mtd/mtdsplit/Makefile index acf799e27a..c843025ffb 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/Makefile +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/Makefile @@ -8,3 +8,4 @@ obj-$(CONFIG_MTD_SPLIT_TPLINK_FW) += mtdsplit_tplink.o obj-$(CONFIG_MTD_SPLIT_TRX_FW) += mtdsplit_trx.o obj-$(CONFIG_MTD_SPLIT_BRNIMAGE_FW) += mtdsplit_brnimage.o obj-$(CONFIG_MTD_SPLIT_EVA_FW) += mtdsplit_eva.o +obj-$(CONFIG_MTD_SPLIT_WRGG_FW) += mtdsplit_wrgg.o diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_wrgg.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_wrgg.c new file mode 100644 index 0000000000..c1fbccbd25 --- /dev/null +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_wrgg.c @@ -0,0 +1,109 @@ +/* + * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org> + * Copyright (C) 2014 Felix Fietkau <nbd@nbd.name> + * Copyright (C) 2016 Stijn Tintel <stijn@linux-ipv6.be> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + * + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/byteorder/generic.h> + +#include "mtdsplit.h" + +#define WRGG_NR_PARTS 2 +#define WRGG_MIN_ROOTFS_OFFS 0x80000 /* 512KiB */ +#define WRGG03_MAGIC 0x20080321 + +struct wrgg03_header { + char signature[32]; + uint32_t magic1; + uint32_t magic2; + char version[16]; + char model[16]; + uint32_t flag[2]; + uint32_t reserve[2]; + char buildno[16]; + uint32_t size; + uint32_t offset; + char devname[32]; + char digest[16]; +} __attribute__ ((packed)); + + +static int mtdsplit_parse_wrgg(struct mtd_info *master, + struct mtd_partition **pparts, + struct mtd_part_parser_data *data) +{ + struct wrgg03_header hdr; + size_t hdr_len, retlen, kernel_ent_size; + size_t rootfs_offset; + struct mtd_partition *parts; + enum mtdsplit_part_type type; + int err; + + hdr_len = sizeof(hdr); + err = mtd_read(master, 0, hdr_len, &retlen, (void *) &hdr); + if (err) + return err; + + if (retlen != hdr_len) + return -EIO; + + /* sanity checks */ + if (le32_to_cpu(hdr.magic1) != WRGG03_MAGIC) + return -EINVAL; + + kernel_ent_size = hdr_len + be32_to_cpu(hdr.size); + + if (kernel_ent_size > master->size) + return -EINVAL; + + /* + * The size in the header covers the rootfs as well. + * Start the search from an arbitrary offset. + */ + err = mtd_find_rootfs_from(master, WRGG_MIN_ROOTFS_OFFS, + master->size, &rootfs_offset, &type); + if (err) + return err; + + parts = kzalloc(WRGG_NR_PARTS * sizeof(*parts), GFP_KERNEL); + if (!parts) + return -ENOMEM; + + parts[0].name = KERNEL_PART_NAME; + parts[0].offset = 0; + parts[0].size = rootfs_offset; + + parts[1].name = ROOTFS_PART_NAME; + parts[1].offset = rootfs_offset; + parts[1].size = master->size - rootfs_offset; + + *pparts = parts; + return WRGG_NR_PARTS; +} + +static struct mtd_part_parser mtdsplit_wrgg_parser = { + .owner = THIS_MODULE, + .name = "wrgg-fw", + .parse_fn = mtdsplit_parse_wrgg, + .type = MTD_PARSER_TYPE_FIRMWARE, +}; + +static int __init mtdsplit_wrgg_init(void) +{ + register_mtd_parser(&mtdsplit_wrgg_parser); + + return 0; +} + +subsys_initcall(mtdsplit_wrgg_init); |