X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=fs%2Ffs.c;h=6155cb1daf34352c95f3d5270e5cf7b8d7b0e32f;hb=4f89da49e728653fbf4ac5d9b741be4f61496b25;hp=d123d29a0808fe6e14b4f19214d69290aeb13471;hpb=45fe3809b9923b92f221d70eb45ae071059fd5e0;p=u-boot diff --git a/fs/fs.c b/fs/fs.c index d123d29a08..6155cb1daf 100644 --- a/fs/fs.c +++ b/fs/fs.c @@ -14,17 +14,19 @@ #include #include #include +#include #include #include #include DECLARE_GLOBAL_DATA_PTR; -static block_dev_desc_t *fs_dev_desc; +static struct blk_desc *fs_dev_desc; +static int fs_dev_part; static disk_partition_t fs_partition; static int fs_type = FS_TYPE_ANY; -static inline int fs_probe_unsupported(block_dev_desc_t *fs_dev_desc, +static inline int fs_probe_unsupported(struct blk_desc *fs_dev_desc, disk_partition_t *fs_partition) { printf("** Unrecognized filesystem type **\n"); @@ -36,6 +38,35 @@ static inline int fs_ls_unsupported(const char *dirname) return -1; } +/* generic implementation of ls in terms of opendir/readdir/closedir */ +__maybe_unused +static int fs_ls_generic(const char *dirname) +{ + struct fs_dir_stream *dirs; + struct fs_dirent *dent; + int nfiles = 0, ndirs = 0; + + dirs = fs_opendir(dirname); + if (!dirs) + return -errno; + + while ((dent = fs_readdir(dirs))) { + if (dent->type == FS_DT_DIR) { + printf(" %s/\n", dent->name); + ndirs++; + } else { + printf(" %8lld %s\n", dent->size, dent->name); + nfiles++; + } + } + + fs_closedir(dirs); + + printf("\n%d file(s), %d dir(s)\n\n", nfiles, ndirs); + + return 0; +} + static inline int fs_exists_unsupported(const char *filename) { return 0; @@ -69,6 +100,12 @@ static inline int fs_uuid_unsupported(char *uuid_str) return -1; } +static inline int fs_opendir_unsupported(const char *filename, + struct fs_dir_stream **dirs) +{ + return -EACCES; +} + struct fstype_info { int fstype; char *name; @@ -81,7 +118,7 @@ struct fstype_info { * filesystem. */ bool null_dev_desc_ok; - int (*probe)(block_dev_desc_t *fs_dev_desc, + int (*probe)(struct blk_desc *fs_dev_desc, disk_partition_t *fs_partition); int (*ls)(const char *dirname); int (*exists)(const char *filename); @@ -92,6 +129,20 @@ struct fstype_info { loff_t len, loff_t *actwrite); void (*close)(void); int (*uuid)(char *uuid_str); + /* + * Open a directory stream. On success return 0 and directory + * stream pointer via 'dirsp'. On error, return -errno. See + * fs_opendir(). + */ + int (*opendir)(const char *filename, struct fs_dir_stream **dirsp); + /* + * Read next entry from directory stream. On success return 0 + * and directory entry pointer via 'dentp'. On error return + * -errno. See fs_readdir(). + */ + int (*readdir)(struct fs_dir_stream *dirs, struct fs_dirent **dentp); + /* see fs_closedir() */ + void (*closedir)(struct fs_dir_stream *dirs); }; static struct fstype_info fstypes[] = { @@ -102,7 +153,7 @@ static struct fstype_info fstypes[] = { .null_dev_desc_ok = false, .probe = fat_set_blk_dev, .close = fat_close, - .ls = file_fat_ls, + .ls = fs_ls_generic, .exists = fat_exists, .size = fat_size, .read = fat_read_file, @@ -112,6 +163,9 @@ static struct fstype_info fstypes[] = { .write = fs_write_unsupported, #endif .uuid = fs_uuid_unsupported, + .opendir = fat_opendir, + .readdir = fat_readdir, + .closedir = fat_closedir, }, #endif #ifdef CONFIG_FS_EXT4 @@ -131,6 +185,7 @@ static struct fstype_info fstypes[] = { .write = fs_write_unsupported, #endif .uuid = ext4fs_uuid, + .opendir = fs_opendir_unsupported, }, #endif #ifdef CONFIG_SANDBOX @@ -146,6 +201,7 @@ static struct fstype_info fstypes[] = { .read = fs_read_sandbox, .write = fs_write_sandbox, .uuid = fs_uuid_unsupported, + .opendir = fs_opendir_unsupported, }, #endif #ifdef CONFIG_CMD_UBIFS @@ -161,6 +217,23 @@ static struct fstype_info fstypes[] = { .read = ubifs_read, .write = fs_write_unsupported, .uuid = fs_uuid_unsupported, + .opendir = fs_opendir_unsupported, + }, +#endif +#ifdef CONFIG_FS_BTRFS + { + .fstype = FS_TYPE_BTRFS, + .name = "btrfs", + .null_dev_desc_ok = false, + .probe = btrfs_probe, + .close = btrfs_close, + .ls = btrfs_ls, + .exists = btrfs_exists, + .size = btrfs_size, + .read = btrfs_read, + .write = fs_write_unsupported, + .uuid = btrfs_uuid, + .opendir = fs_opendir_unsupported, }, #endif { @@ -175,6 +248,7 @@ static struct fstype_info fstypes[] = { .read = fs_read_unsupported, .write = fs_write_unsupported, .uuid = fs_uuid_unsupported, + .opendir = fs_opendir_unsupported, }, }; @@ -213,7 +287,7 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype) } #endif - part = get_device_and_partition(ifname, dev_part_str, &fs_dev_desc, + part = blk_get_device_part_str(ifname, dev_part_str, &fs_dev_desc, &fs_partition, 1); if (part < 0) return -1; @@ -226,6 +300,31 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype) if (!fs_dev_desc && !info->null_dev_desc_ok) continue; + if (!info->probe(fs_dev_desc, &fs_partition)) { + fs_type = info->fstype; + fs_dev_part = part; + return 0; + } + } + + return -1; +} + +/* set current blk device w/ blk_desc + partition # */ +int fs_set_blk_dev_with_part(struct blk_desc *desc, int part) +{ + struct fstype_info *info; + int ret, i; + + if (part >= 1) + ret = part_get_info(desc, part, &fs_partition); + else + ret = part_get_info_whole_disk(desc, &fs_partition); + if (ret) + return ret; + fs_dev_desc = desc; + + for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes); i++, info++) { if (!info->probe(fs_dev_desc, &fs_partition)) { fs_type = info->fstype; return 0; @@ -308,7 +407,7 @@ int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len, /* If we requested a specific number of bytes, check we got it */ if (ret == 0 && len && *actread != len) - printf("** %s shorter than offset + len **\n", filename); + debug("** %s shorter than offset + len **\n", filename); fs_close(); return ret; @@ -334,6 +433,59 @@ int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len, return ret; } +struct fs_dir_stream *fs_opendir(const char *filename) +{ + struct fstype_info *info = fs_get_info(fs_type); + struct fs_dir_stream *dirs = NULL; + int ret; + + ret = info->opendir(filename, &dirs); + fs_close(); + if (ret) { + errno = -ret; + return NULL; + } + + dirs->desc = fs_dev_desc; + dirs->part = fs_dev_part; + + return dirs; +} + +struct fs_dirent *fs_readdir(struct fs_dir_stream *dirs) +{ + struct fstype_info *info; + struct fs_dirent *dirent; + int ret; + + fs_set_blk_dev_with_part(dirs->desc, dirs->part); + info = fs_get_info(fs_type); + + ret = info->readdir(dirs, &dirent); + fs_close(); + if (ret) { + errno = -ret; + return NULL; + } + + return dirent; +} + +void fs_closedir(struct fs_dir_stream *dirs) +{ + struct fstype_info *info; + + if (!dirs) + return; + + fs_set_blk_dev_with_part(dirs->desc, dirs->part); + info = fs_get_info(fs_type); + + info->closedir(dirs); + fs_close(); +} + + int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], int fstype) { @@ -348,7 +500,7 @@ int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], if (fs_size(argv[3], &size) < 0) return CMD_RET_FAILURE; - setenv_hex("filesize", size); + env_set_hex("filesize", size); return 0; } @@ -379,7 +531,7 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], if (ep == argv[3] || *ep != '\0') return CMD_RET_USAGE; } else { - addr_str = getenv("loadaddr"); + addr_str = env_get("loadaddr"); if (addr_str != NULL) addr = simple_strtoul(addr_str, NULL, 16); else @@ -388,7 +540,7 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], if (argc >= 5) { filename = argv[4]; } else { - filename = getenv("bootfile"); + filename = env_get("bootfile"); if (!filename) { puts("** No boot file defined **\n"); return 1; @@ -417,8 +569,8 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], } puts("\n"); - setenv_hex("fileaddr", addr); - setenv_hex("filesize", len_read); + env_set_hex("fileaddr", addr); + env_set_hex("filesize", len_read); return 0; } @@ -509,7 +661,7 @@ int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], return CMD_RET_FAILURE; if (argc == 4) - setenv(argv[3], uuid); + env_set(argv[3], uuid); else printf("%s\n", uuid); @@ -529,7 +681,7 @@ int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) info = fs_get_info(fs_type); if (argc == 4) - setenv(argv[3], info->name); + env_set(argv[3], info->name); else printf("%s\n", info->name);