]> git.ipfire.org Git - people/ms/u-boot.git/blobdiff - fs/fs.c
Merge git://git.denx.de/u-boot-video
[people/ms/u-boot.git] / fs / fs.c
diff --git a/fs/fs.c b/fs/fs.c
index dd680f39c9ca60472ea91f37a7a325f95da3b672..6155cb1daf34352c95f3d5270e5cf7b8d7b0e32f 100644 (file)
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -1,35 +1,32 @@
 /*
  * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier:    GPL-2.0
  */
 
 #include <config.h>
+#include <errno.h>
 #include <common.h>
+#include <mapmem.h>
 #include <part.h>
 #include <ext4fs.h>
 #include <fat.h>
 #include <fs.h>
 #include <sandboxfs.h>
+#include <ubifs_uboot.h>
+#include <btrfs.h>
 #include <asm/io.h>
+#include <div64.h>
+#include <linux/math64.h>
 
 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");
@@ -41,24 +38,55 @@ 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;
 }
 
-static inline int fs_size_unsupported(const char *filename)
+static inline int fs_size_unsupported(const char *filename, loff_t *size)
 {
        return -1;
 }
 
 static inline int fs_read_unsupported(const char *filename, void *buf,
-                                     int offset, int len)
+                                     loff_t offset, loff_t len,
+                                     loff_t *actread)
 {
        return -1;
 }
 
 static inline int fs_write_unsupported(const char *filename, void *buf,
-                                     int offset, int len)
+                                     loff_t offset, loff_t len,
+                                     loff_t *actwrite)
 {
        return -1;
 }
@@ -67,8 +95,20 @@ static inline void fs_close_unsupported(void)
 {
 }
 
+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;
        /*
         * Is it legal to pass NULL as .probe()'s  fs_dev_desc parameter? This
         * should be false in most cases. For "virtual" filesystems which
@@ -78,33 +118,60 @@ 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);
-       int (*size)(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);
+       int (*size)(const char *filename, loff_t *size);
+       int (*read)(const char *filename, void *buf, loff_t offset,
+                   loff_t len, loff_t *actread);
+       int (*write)(const char *filename, void *buf, loff_t offset,
+                    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[] = {
 #ifdef CONFIG_FS_FAT
        {
                .fstype = FS_TYPE_FAT,
+               .name = "fat",
                .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,
+#ifdef CONFIG_FAT_WRITE
+               .write = file_fat_write,
+#else
                .write = fs_write_unsupported,
+#endif
+               .uuid = fs_uuid_unsupported,
+               .opendir = fat_opendir,
+               .readdir = fat_readdir,
+               .closedir = fat_closedir,
        },
 #endif
 #ifdef CONFIG_FS_EXT4
        {
                .fstype = FS_TYPE_EXT,
+               .name = "ext4",
                .null_dev_desc_ok = false,
                .probe = ext4fs_probe,
                .close = ext4fs_close,
@@ -112,12 +179,19 @@ static struct fstype_info fstypes[] = {
                .exists = ext4fs_exists,
                .size = ext4fs_size,
                .read = ext4_read_file,
+#ifdef CONFIG_CMD_EXT4_WRITE
+               .write = ext4_write_file,
+#else
                .write = fs_write_unsupported,
+#endif
+               .uuid = ext4fs_uuid,
+               .opendir = fs_opendir_unsupported,
        },
 #endif
 #ifdef CONFIG_SANDBOX
        {
                .fstype = FS_TYPE_SANDBOX,
+               .name = "sandbox",
                .null_dev_desc_ok = true,
                .probe = sandbox_fs_set_blk_dev,
                .close = sandbox_fs_close,
@@ -126,10 +200,45 @@ static struct fstype_info fstypes[] = {
                .size = sandbox_fs_size,
                .read = fs_read_sandbox,
                .write = fs_write_sandbox,
+               .uuid = fs_uuid_unsupported,
+               .opendir = fs_opendir_unsupported,
+       },
+#endif
+#ifdef CONFIG_CMD_UBIFS
+       {
+               .fstype = FS_TYPE_UBIFS,
+               .name = "ubifs",
+               .null_dev_desc_ok = true,
+               .probe = ubifs_set_blk_dev,
+               .close = ubifs_close,
+               .ls = ubifs_ls,
+               .exists = ubifs_exists,
+               .size = ubifs_size,
+               .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
        {
                .fstype = FS_TYPE_ANY,
+               .name = "unsupported",
                .null_dev_desc_ok = true,
                .probe = fs_probe_unsupported,
                .close = fs_close_unsupported,
@@ -138,6 +247,8 @@ static struct fstype_info fstypes[] = {
                .size = fs_size_unsupported,
                .read = fs_read_unsupported,
                .write = fs_write_unsupported,
+               .uuid = fs_uuid_unsupported,
+               .opendir = fs_opendir_unsupported,
        },
 };
 
@@ -165,6 +276,7 @@ int fs_set_blk_dev(const char *ifname, const char *dev_part_str, int fstype)
        if (!relocated) {
                for (i = 0, info = fstypes; i < ARRAY_SIZE(fstypes);
                                i++, info++) {
+                       info->name += gd->reloc_off;
                        info->probe += gd->reloc_off;
                        info->close += gd->reloc_off;
                        info->ls += gd->reloc_off;
@@ -175,7 +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;
@@ -188,6 +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;
@@ -206,6 +343,13 @@ static void fs_close(void)
        fs_type = FS_TYPE_ANY;
 }
 
+int fs_uuid(char *uuid_str)
+{
+       struct fstype_info *info = fs_get_info(fs_type);
+
+       return info->uuid(uuid_str);
+}
+
 int fs_ls(const char *dirname)
 {
        int ret;
@@ -233,20 +377,21 @@ int fs_exists(const char *filename)
        return ret;
 }
 
-int fs_size(const char *filename)
+int fs_size(const char *filename, loff_t *size)
 {
        int ret;
 
        struct fstype_info *info = fs_get_info(fs_type);
 
-       ret = info->size(filename);
+       ret = info->size(filename, size);
 
        fs_close();
 
        return ret;
 }
 
-int fs_read(const char *filename, ulong addr, int offset, int len)
+int fs_read(const char *filename, ulong addr, loff_t offset, loff_t len,
+           loff_t *actread)
 {
        struct fstype_info *info = fs_get_info(fs_type);
        void *buf;
@@ -257,30 +402,29 @@ int fs_read(const char *filename, ulong addr, int offset, int len)
         * means read the whole file.
         */
        buf = map_sysmem(addr, len);
-       ret = info->read(filename, buf, offset, len);
+       ret = info->read(filename, buf, offset, len, actread);
        unmap_sysmem(buf);
 
        /* If we requested a specific number of bytes, check we got it */
-       if (ret >= 0 && len && ret != len) {
-               printf("** Unable to read file %s **\n", filename);
-               ret = -1;
-       }
+       if (ret == 0 && len && *actread != len)
+               debug("** %s shorter than offset + len **\n", filename);
        fs_close();
 
        return ret;
 }
 
-int fs_write(const char *filename, ulong addr, int offset, int len)
+int fs_write(const char *filename, ulong addr, loff_t offset, loff_t len,
+            loff_t *actwrite)
 {
        struct fstype_info *info = fs_get_info(fs_type);
        void *buf;
        int ret;
 
        buf = map_sysmem(addr, len);
-       ret = info->write(filename, buf, offset, len);
+       ret = info->write(filename, buf, offset, len, actwrite);
        unmap_sysmem(buf);
 
-       if (ret >= 0 && ret != len) {
+       if (ret < 0 && len != *actwrite) {
                printf("** Unable to write file %s **\n", filename);
                ret = -1;
        }
@@ -289,10 +433,63 @@ int fs_write(const char *filename, ulong addr, int offset, int 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)
 {
-       int size;
+       loff_t size;
 
        if (argc != 4)
                return CMD_RET_USAGE;
@@ -300,11 +497,10 @@ int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
        if (fs_set_blk_dev(argv[1], argv[2], fstype))
                return 1;
 
-       size = fs_size(argv[3]);
-       if (size < 0)
+       if (fs_size(argv[3], &size) < 0)
                return CMD_RET_FAILURE;
 
-       setenv_hex("filesize", size);
+       env_set_hex("filesize", size);
 
        return 0;
 }
@@ -315,9 +511,10 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
        unsigned long addr;
        const char *addr_str;
        const char *filename;
-       unsigned long bytes;
-       unsigned long pos;
-       int len_read;
+       loff_t bytes;
+       loff_t pos;
+       loff_t len_read;
+       int ret;
        unsigned long time;
        char *ep;
 
@@ -334,7 +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
@@ -343,7 +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;
@@ -359,20 +556,21 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
                pos = 0;
 
        time = get_timer(0);
-       len_read = fs_read(filename, addr, pos, bytes);
+       ret = fs_read(filename, addr, pos, bytes, &len_read);
        time = get_timer(time);
-       if (len_read <= 0)
+       if (ret < 0)
                return 1;
 
-       printf("%d bytes read in %lu ms", len_read, time);
+       printf("%llu bytes read in %lu ms", len_read, time);
        if (time > 0) {
                puts(" (");
-               print_size(len_read / time * 1000, "/s");
+               print_size(div_u64(len_read, time) * 1000, "/s");
                puts(")");
        }
        puts("\n");
 
-       setenv_hex("filesize", len_read);
+       env_set_hex("fileaddr", addr);
+       env_set_hex("filesize", len_read);
 
        return 0;
 }
@@ -408,9 +606,10 @@ int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
 {
        unsigned long addr;
        const char *filename;
-       unsigned long bytes;
-       unsigned long pos;
-       int len;
+       loff_t bytes;
+       loff_t pos;
+       loff_t len;
+       int ret;
        unsigned long time;
 
        if (argc < 6 || argc > 7)
@@ -419,8 +618,8 @@ int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
        if (fs_set_blk_dev(argv[1], argv[2], fstype))
                return 1;
 
-       filename = argv[3];
-       addr = simple_strtoul(argv[4], NULL, 16);
+       addr = simple_strtoul(argv[3], NULL, 16);
+       filename = argv[4];
        bytes = simple_strtoul(argv[5], NULL, 16);
        if (argc >= 7)
                pos = simple_strtoul(argv[6], NULL, 16);
@@ -428,18 +627,64 @@ int do_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
                pos = 0;
 
        time = get_timer(0);
-       len = fs_write(filename, addr, pos, bytes);
+       ret = fs_write(filename, addr, pos, bytes, &len);
        time = get_timer(time);
-       if (len <= 0)
+       if (ret < 0)
                return 1;
 
-       printf("%d bytes written in %lu ms", len, time);
+       printf("%llu bytes written in %lu ms", len, time);
        if (time > 0) {
                puts(" (");
-               print_size(len / time * 1000, "/s");
+               print_size(div_u64(len, time) * 1000, "/s");
                puts(")");
        }
        puts("\n");
 
        return 0;
 }
+
+int do_fs_uuid(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
+               int fstype)
+{
+       int ret;
+       char uuid[37];
+       memset(uuid, 0, sizeof(uuid));
+
+       if (argc < 3 || argc > 4)
+               return CMD_RET_USAGE;
+
+       if (fs_set_blk_dev(argv[1], argv[2], fstype))
+               return 1;
+
+       ret = fs_uuid(uuid);
+       if (ret)
+               return CMD_RET_FAILURE;
+
+       if (argc == 4)
+               env_set(argv[3], uuid);
+       else
+               printf("%s\n", uuid);
+
+       return CMD_RET_SUCCESS;
+}
+
+int do_fs_type(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+       struct fstype_info *info;
+
+       if (argc < 3 || argc > 4)
+               return CMD_RET_USAGE;
+
+       if (fs_set_blk_dev(argv[1], argv[2], FS_TYPE_ANY))
+               return 1;
+
+       info = fs_get_info(fs_type);
+
+       if (argc == 4)
+               env_set(argv[3], info->name);
+       else
+               printf("%s\n", info->name);
+
+       return CMD_RET_SUCCESS;
+}
+