diff options
Diffstat (limited to 'target/linux/generic/files/drivers')
9 files changed, 42 insertions, 26 deletions
diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit.c index 162739f472..4f6b46e28b 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit.c +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit.c @@ -70,7 +70,8 @@ static ssize_t mtd_next_eb(struct mtd_info *mtd, size_t offset) return mtd_rounddown_to_eb(offset, mtd) + mtd->erasesize; } -int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset) +int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset, + enum mtdsplit_part_type *type) { u32 magic; size_t retlen; @@ -84,25 +85,32 @@ int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset) if (retlen != sizeof(magic)) return -EIO; - if (le32_to_cpu(magic) != SQUASHFS_MAGIC && - magic != 0x19852003) - return -EINVAL; + if (le32_to_cpu(magic) == SQUASHFS_MAGIC) { + if (type) + *type = MTDSPLIT_PART_TYPE_SQUASHFS; + return 0; + } else if (magic == 0x19852003) { + if (type) + *type = MTDSPLIT_PART_TYPE_JFFS2; + return 0; + } - return 0; + return -EINVAL; } EXPORT_SYMBOL_GPL(mtd_check_rootfs_magic); int mtd_find_rootfs_from(struct mtd_info *mtd, size_t from, size_t limit, - size_t *ret_offset) + size_t *ret_offset, + enum mtdsplit_part_type *type) { size_t offset; int err; for (offset = from; offset < limit; offset = mtd_next_eb(mtd, offset)) { - err = mtd_check_rootfs_magic(mtd, offset); + err = mtd_check_rootfs_magic(mtd, offset, type); if (err) continue; diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit.h b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit.h index 7ee88b0bb4..b757758685 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit.h +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit.h @@ -18,17 +18,25 @@ #define ROOTFS_SPLIT_NAME "rootfs_data" +enum mtdsplit_part_type { + MTDSPLIT_PART_TYPE_UNK = 0, + MTDSPLIT_PART_TYPE_SQUASHFS, + MTDSPLIT_PART_TYPE_JFFS2, +}; + #ifdef CONFIG_MTD_SPLIT int mtd_get_squashfs_len(struct mtd_info *master, size_t offset, size_t *squashfs_len); -int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset); +int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset, + enum mtdsplit_part_type *type); int mtd_find_rootfs_from(struct mtd_info *mtd, size_t from, size_t limit, - size_t *ret_offset); + size_t *ret_offset, + enum mtdsplit_part_type *type); #else static inline int mtd_get_squashfs_len(struct mtd_info *master, @@ -38,7 +46,8 @@ static inline int mtd_get_squashfs_len(struct mtd_info *master, return -ENODEV; } -static inline int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset) +static inline int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset, + enum mtdsplit_part_type *type) { return -EINVAL; } @@ -46,7 +55,8 @@ static inline int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset) static inline int mtd_find_rootfs_from(struct mtd_info *mtd, size_t from, size_t limit, - size_t *ret_offset) + size_t *ret_offset, + enum mtdsplit_part_type *type) { return -ENODEV; } diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_brnimage.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_brnimage.c index 7ddd69b7b7..c0887722d7 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_brnimage.c +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_brnimage.c @@ -38,7 +38,7 @@ static int mtdsplit_parse_brnimage(struct mtd_info *master, for (rootfs_offset = 0; rootfs_offset < master->size; rootfs_offset += BRNIMAGE_ALIGN_BYTES) { - ret = mtd_check_rootfs_magic(master, rootfs_offset); + ret = mtd_check_rootfs_magic(master, rootfs_offset, NULL); if (!ret) break; } diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_eva.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_eva.c index d262e6083e..3edc104f4e 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_eva.c +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_eva.c @@ -59,7 +59,7 @@ static int mtdsplit_parse_eva(struct mtd_info *master, if (rootfs_offset >= master->size) return -EINVAL; - err = mtd_check_rootfs_magic(master, rootfs_offset); + err = mtd_check_rootfs_magic(master, rootfs_offset, NULL); if (err) return err; diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_fit.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_fit.c index d1087f6246..57954061cd 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_fit.c +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_fit.c @@ -93,8 +93,8 @@ mtdsplit_fit_parse(struct mtd_info *mtd, struct mtd_partition **pparts, } /* Search for the rootfs partition after the FIT image */ - ret = mtd_find_rootfs_from(mtd, fit_offset + fit_size, - mtd->size, &rootfs_offset); + ret = mtd_find_rootfs_from(mtd, fit_offset + fit_size, mtd->size, + &rootfs_offset, NULL); if (ret) { pr_info("no rootfs found after FIT image in \"%s\"\n", mtd->name); diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_lzma.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_lzma.c index 64dc7cb31c..f3d8c040c2 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_lzma.c +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_lzma.c @@ -58,8 +58,8 @@ static int mtdsplit_parse_lzma(struct mtd_info *master, if (t) return -EINVAL; - err = mtd_find_rootfs_from(master, master->erasesize, - master->size, &rootfs_offset); + err = mtd_find_rootfs_from(master, master->erasesize, master->size, + &rootfs_offset, NULL); if (err) return err; diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_seama.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_seama.c index 4ff361c4f2..228b8997ad 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_seama.c +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_seama.c @@ -56,7 +56,7 @@ static int mtdsplit_parse_seama(struct mtd_info *master, return -EINVAL; /* Check for the rootfs right after Seama entity with a kernel. */ - err = mtd_check_rootfs_magic(master, kernel_ent_size); + err = mtd_check_rootfs_magic(master, kernel_ent_size, NULL); if (!err) { rootfs_offset = kernel_ent_size; } else { @@ -67,7 +67,7 @@ static int mtdsplit_parse_seama(struct mtd_info *master, * Start the search from an arbitrary offset. */ err = mtd_find_rootfs_from(master, SEAMA_MIN_ROOTFS_OFFS, - master->size, &rootfs_offset); + master->size, &rootfs_offset, NULL); if (err) return err; } diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_tplink.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_tplink.c index 00c2d39a81..c65e60a3e2 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_tplink.c +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_tplink.c @@ -122,7 +122,7 @@ static int mtdsplit_parse_tplink(struct mtd_info *master, return -EINVAL; /* Find the rootfs after the kernel. */ - err = mtd_check_rootfs_magic(master, kernel_size); + err = mtd_check_rootfs_magic(master, kernel_size, NULL); if (!err) { rootfs_offset = kernel_size; } else { @@ -131,7 +131,7 @@ static int mtdsplit_parse_tplink(struct mtd_info *master, * Start the search from an arbitrary offset. */ err = mtd_find_rootfs_from(master, TPLINK_MIN_ROOTFS_OFFS, - master->size, &rootfs_offset); + master->size, &rootfs_offset, NULL); if (err) return err; } diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c index b815869a6b..c30ee6ad74 100644 --- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c +++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c @@ -147,10 +147,8 @@ static int __mtdsplit_parse_uimage(struct mtd_info *master, rf_part = 1; /* find the roots after the uImage */ - ret = mtd_find_rootfs_from(master, - uimage_offset + uimage_size, - master->size, - &rootfs_offset); + ret = mtd_find_rootfs_from(master, uimage_offset + uimage_size, + master->size, &rootfs_offset, NULL); if (ret) { pr_debug("no rootfs after uImage in \"%s\"\n", master->name); @@ -164,7 +162,7 @@ static int __mtdsplit_parse_uimage(struct mtd_info *master, uimage_part = 1; /* check rootfs presence at offset 0 */ - ret = mtd_check_rootfs_magic(master, 0); + ret = mtd_check_rootfs_magic(master, 0, NULL); if (ret) { pr_debug("no rootfs before uImage in \"%s\"\n", master->name); |