]> git.ipfire.org Git - people/ms/u-boot.git/blobdiff - fs/fs.c
env: Rename common functions related to setenv()
[people/ms/u-boot.git] / fs / fs.c
diff --git a/fs/fs.c b/fs/fs.c
index be1855d1291f217b19720ae0faa45076eb0cc5ac..055dffdafdf023fa39bd4865550630537a988652 100644 (file)
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -1,35 +1,30 @@
 /*
  * 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 <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 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");
@@ -41,14 +36,26 @@ 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_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;
 }
@@ -57,52 +64,117 @@ static inline void fs_close_unsupported(void)
 {
 }
 
+static inline int fs_uuid_unsupported(char *uuid_str)
+{
+       return -1;
+}
+
 struct fstype_info {
        int fstype;
-       int (*probe)(block_dev_desc_t *fs_dev_desc,
+       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
+        * 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)(struct blk_desc *fs_dev_desc,
                     disk_partition_t *fs_partition);
        int (*ls)(const char *dirname);
-       int (*read)(const char *filename, void *buf, int offset, int len);
-       int (*write)(const char *filename, void *buf, int offset, int len);
+       int (*exists)(const char *filename);
+       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);
 };
 
 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,
+               .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,
        },
 #endif
 #ifdef CONFIG_FS_EXT4
        {
                .fstype = FS_TYPE_EXT,
+               .name = "ext4",
+               .null_dev_desc_ok = false,
                .probe = ext4fs_probe,
                .close = ext4fs_close,
                .ls = ext4fs_ls,
+               .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,
        },
 #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,
                .ls = sandbox_fs_ls,
+               .exists = sandbox_fs_exists,
+               .size = sandbox_fs_size,
                .read = fs_read_sandbox,
                .write = fs_write_sandbox,
+               .uuid = fs_uuid_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,
        },
 #endif
        {
                .fstype = FS_TYPE_ANY,
+               .name = "unsupported",
+               .null_dev_desc_ok = true,
                .probe = fs_probe_unsupported,
                .close = fs_close_unsupported,
                .ls = fs_ls_unsupported,
+               .exists = fs_exists_unsupported,
+               .size = fs_size_unsupported,
                .read = fs_read_unsupported,
                .write = fs_write_unsupported,
+               .uuid = fs_uuid_unsupported,
        },
 };
 
@@ -130,6 +202,7 @@ 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;
@@ -140,7 +213,7 @@ 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;
@@ -150,6 +223,9 @@ 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;
@@ -168,6 +244,13 @@ 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;
@@ -182,7 +265,34 @@ int fs_ls(const char *dirname)
        return ret;
 }
 
-int fs_read(const char *filename, ulong addr, int offset, int len)
+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_size(const char *filename, loff_t *size)
+{
+       int ret;
+
+       struct fstype_info *info = fs_get_info(fs_type);
+
+       ret = info->size(filename, size);
+
+       fs_close();
+
+       return ret;
+}
+
+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;
@@ -193,35 +303,29 @@ 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)
+               printf("** %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;
 
-       /*
-        * 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);
+       ret = info->write(filename, buf, offset, len, actwrite);
        unmap_sysmem(buf);
 
-       /* If we requested a specific number of bytes, check we got it */
-       if (ret >= 0 && len && ret != len) {
+       if (ret < 0 && len != *actwrite) {
                printf("** Unable to write file %s **\n", filename);
                ret = -1;
        }
@@ -230,16 +334,37 @@ int fs_write(const char *filename, ulong addr, int offset, int len)
        return ret;
 }
 
+int do_size(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
+               int fstype)
+{
+       loff_t size;
+
+       if (argc != 4)
+               return CMD_RET_USAGE;
+
+       if (fs_set_blk_dev(argv[1], argv[2], fstype))
+               return 1;
+
+       if (fs_size(argv[3], &size) < 0)
+               return CMD_RET_FAILURE;
+
+       env_set_hex("filesize", size);
+
+       return 0;
+}
+
 int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
                int fstype)
 {
        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;
 
        if (argc < 2)
                return CMD_RET_USAGE;
@@ -250,7 +375,9 @@ int do_load(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
                return 1;
 
        if (argc >= 4) {
-               addr = simple_strtoul(argv[3], NULL, 16);
+               addr = simple_strtoul(argv[3], &ep, 16);
+               if (ep == argv[3] || *ep != '\0')
+                       return CMD_RET_USAGE;
        } else {
                addr_str = getenv("loadaddr");
                if (addr_str != NULL)
@@ -277,20 +404,21 @@ 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;
 }
@@ -312,14 +440,24 @@ 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)
 {
        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)
@@ -328,8 +466,8 @@ 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);
@@ -337,18 +475,64 @@ 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;
+}
+