diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/ext4fs.c | 8 | ||||
| -rw-r--r-- | fs/fat/fat.c | 18 | ||||
| -rw-r--r-- | fs/fs.c | 57 | ||||
| -rw-r--r-- | fs/sandbox/sandboxfs.c | 8 | ||||
| -rw-r--r-- | fs/ubifs/Makefile | 2 | ||||
| -rw-r--r-- | fs/yaffs2/Makefile | 9 |
6 files changed, 85 insertions, 17 deletions
diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c index 735b256417..417ce7b63b 100644 --- a/fs/ext4/ext4fs.c +++ b/fs/ext4/ext4fs.c @@ -174,6 +174,14 @@ int ext4fs_ls(const char *dirname) return 0; } +int ext4fs_exists(const char *filename) +{ + int file_len; + + file_len = ext4fs_open(filename); + return file_len >= 0; +} + int ext4fs_read(char *buf, unsigned len) { if (ext4fs_root == NULL || ext4fs_file == NULL) diff --git a/fs/fat/fat.c b/fs/fat/fat.c index b41d62e3c3..54f42eae0d 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -808,7 +808,7 @@ __u8 do_fat_read_at_block[MAX_CLUSTSIZE] long do_fat_read_at(const char *filename, unsigned long pos, void *buffer, - unsigned long maxsize, int dols) + unsigned long maxsize, int dols, int dogetsize) { char fnamecopy[2048]; boot_sector bs; @@ -1152,7 +1152,10 @@ rootdir_done: subname = nextname; } - ret = get_contents(mydata, dentptr, pos, buffer, maxsize); + if (dogetsize) + ret = FAT2CPU32(dentptr->size); + else + ret = get_contents(mydata, dentptr, pos, buffer, maxsize); debug("Size: %d, got: %ld\n", FAT2CPU32(dentptr->size), ret); exit: @@ -1163,7 +1166,7 @@ exit: long do_fat_read(const char *filename, void *buffer, unsigned long maxsize, int dols) { - return do_fat_read_at(filename, 0, buffer, maxsize, dols); + return do_fat_read_at(filename, 0, buffer, maxsize, dols, 0); } int file_fat_detectfs(void) @@ -1233,11 +1236,18 @@ int file_fat_ls(const char *dir) return do_fat_read(dir, NULL, 0, LS_YES); } +int fat_exists(const char *filename) +{ + int sz; + sz = do_fat_read_at(filename, 0, NULL, 0, LS_NO, 1); + return sz >= 0; +} + long file_fat_read_at(const char *filename, unsigned long pos, void *buffer, unsigned long maxsize) { printf("reading %s\n", filename); - return do_fat_read_at(filename, pos, buffer, maxsize, LS_NO); + return do_fat_read_at(filename, pos, buffer, maxsize, LS_NO, 0); } long file_fat_read(const char *filename, void *buffer, unsigned long maxsize) @@ -41,6 +41,11 @@ static inline int fs_ls_unsupported(const char *dirname) return -1; } +static inline int fs_exists_unsupported(const char *filename) +{ + return 0; +} + static inline int fs_read_unsupported(const char *filename, void *buf, int offset, int len) { @@ -59,9 +64,19 @@ static inline void fs_close_unsupported(void) struct fstype_info { int fstype; + /* + * Is it legal to pass NULL as .probe()'s fs_dev_desc parameter? This + * should be false in most cases. For "virtual" filesystems which + * aren't based on a U-Boot block device (e.g. sandbox), this can be + * set to true. This should also be true for the dumm entry at the end + * of fstypes[], since that is essentially a "virtual" (non-existent) + * filesystem. + */ + bool null_dev_desc_ok; int (*probe)(block_dev_desc_t *fs_dev_desc, disk_partition_t *fs_partition); int (*ls)(const char *dirname); + int (*exists)(const char *filename); int (*read)(const char *filename, void *buf, int offset, int len); int (*write)(const char *filename, void *buf, int offset, int len); void (*close)(void); @@ -71,36 +86,46 @@ static struct fstype_info fstypes[] = { #ifdef CONFIG_FS_FAT { .fstype = FS_TYPE_FAT, + .null_dev_desc_ok = false, .probe = fat_set_blk_dev, .close = fat_close, .ls = file_fat_ls, + .exists = fat_exists, .read = fat_read_file, + .write = fs_write_unsupported, }, #endif #ifdef CONFIG_FS_EXT4 { .fstype = FS_TYPE_EXT, + .null_dev_desc_ok = false, .probe = ext4fs_probe, .close = ext4fs_close, .ls = ext4fs_ls, + .exists = ext4fs_exists, .read = ext4_read_file, + .write = fs_write_unsupported, }, #endif #ifdef CONFIG_SANDBOX { .fstype = FS_TYPE_SANDBOX, + .null_dev_desc_ok = true, .probe = sandbox_fs_set_blk_dev, .close = sandbox_fs_close, .ls = sandbox_fs_ls, + .exists = sandbox_fs_exists, .read = fs_read_sandbox, .write = fs_write_sandbox, }, #endif { .fstype = FS_TYPE_ANY, + .null_dev_desc_ok = true, .probe = fs_probe_unsupported, .close = fs_close_unsupported, .ls = fs_ls_unsupported, + .exists = fs_exists_unsupported, .read = fs_read_unsupported, .write = fs_write_unsupported, }, @@ -150,6 +175,9 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype) fstype != info->fstype) continue; + if (!fs_dev_desc && !info->null_dev_desc_ok) + continue; + if (!info->probe(fs_dev_desc, &fs_partition)) { fs_type = info->fstype; return 0; @@ -182,6 +210,19 @@ int fs_ls(const char *dirname) return ret; } +int fs_exists(const char *filename) +{ + int ret; + + struct fstype_info *info = fs_get_info(fs_type); + + ret = info->exists(filename); + + fs_close(); + + return ret; +} + int fs_read(const char *filename, ulong addr, int offset, int len) { struct fstype_info *info = fs_get_info(fs_type); @@ -212,16 +253,11 @@ int fs_write(const char *filename, ulong addr, int offset, int len) void *buf; int ret; - /* - * We don't actually know how many bytes are being read, since len==0 - * means read the whole file. - */ buf = map_sysmem(addr, len); ret = info->write(filename, buf, offset, len); unmap_sysmem(buf); - /* If we requested a specific number of bytes, check we got it */ - if (ret >= 0 && len && ret != len) { + if (ret >= 0 && ret != len) { printf("** Unable to write file %s **\n", filename); ret = -1; } @@ -312,6 +348,15 @@ int do_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], return 0; } +int file_exists(const char *dev_type, const char *dev_part, const char *file, + int fstype) +{ + if (fs_set_blk_dev(dev_type, dev_part, fstype)) + return 0; + + return fs_exists(file); +} + int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int fstype) { diff --git a/fs/sandbox/sandboxfs.c b/fs/sandbox/sandboxfs.c index dd028da8e3..85079788c9 100644 --- a/fs/sandbox/sandboxfs.c +++ b/fs/sandbox/sandboxfs.c @@ -72,6 +72,14 @@ int sandbox_fs_ls(const char *dirname) return 0; } +int sandbox_fs_exists(const char *filename) +{ + ssize_t sz; + + sz = os_get_filesize(filename); + return sz >= 0; +} + void sandbox_fs_close(void) { } diff --git a/fs/ubifs/Makefile b/fs/ubifs/Makefile index 389b0e37e7..6b1a9a5b00 100644 --- a/fs/ubifs/Makefile +++ b/fs/ubifs/Makefile @@ -15,4 +15,4 @@ obj-y += tnc.o tnc_misc.o debug.o crc16.o budget.o obj-y += log.o orphan.o recovery.o replay.o # SEE README.arm-unaligned-accesses -$(obj)super.o: CFLAGS += $(PLATFORM_NO_UNALIGNED) +CFLAGS_super.o := $(PLATFORM_NO_UNALIGNED) diff --git a/fs/yaffs2/Makefile b/fs/yaffs2/Makefile index d811287ddb..45ff7458c6 100644 --- a/fs/yaffs2/Makefile +++ b/fs/yaffs2/Makefile @@ -24,9 +24,6 @@ obj-y := \ yaffs_summary.o yaffs_tagscompat.o yaffs_verify.o yaffs_yaffs1.o \ yaffs_yaffs2.o yaffs_mtdif.o yaffs_mtdif2.o -YCFLAGS = -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM -YCFLAGS += -DCONFIG_YAFFS_YAFFS2 -DNO_Y_INLINE -YCFLAGS += -DCONFIG_YAFFS_PROVIDE_DEFS -DCONFIG_YAFFSFS_PROVIDE_VALUES - -CFLAGS += $(YCFLAGS) -CPPFLAGS += $(YCFLAGS) +ccflags-y = -DCONFIG_YAFFS_DIRECT -DCONFIG_YAFFS_SHORT_NAMES_IN_RAM \ + -DCONFIG_YAFFS_YAFFS2 -DNO_Y_INLINE \ + -DCONFIG_YAFFS_PROVIDE_DEFS -DCONFIG_YAFFSFS_PROVIDE_VALUES |