ubifs: Add functions for generic fs use
Implement the necessary functions for implementing generic fs support
for ubifs.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/fs/ubifs/ubifs.c b/fs/ubifs/ubifs.c
index 0a7a7bf..d7f307b 100644
--- a/fs/ubifs/ubifs.c
+++ b/fs/ubifs/ubifs.c
@@ -570,6 +570,25 @@
return 0;
}
+int ubifs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info)
+{
+ if (rbdd) {
+ debug("UBIFS cannot be used with normal block devices\n");
+ return -1;
+ }
+
+ /*
+ * Should never happen since get_device_and_partition() already checks
+ * this, but better safe then sorry.
+ */
+ if (!ubifs_is_mounted()) {
+ debug("UBIFS not mounted, use ubifsmount to mount volume first!\n");
+ return -1;
+ }
+
+ return 0;
+}
+
int ubifs_ls(const char *filename)
{
struct ubifs_info *c = ubifs_sb->s_fs_info;
@@ -618,6 +637,48 @@
return ret;
}
+int ubifs_exists(const char *filename)
+{
+ struct ubifs_info *c = ubifs_sb->s_fs_info;
+ unsigned long inum;
+
+ c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
+ inum = ubifs_findfile(ubifs_sb, (char *)filename);
+ ubi_close_volume(c->ubi);
+
+ return inum != 0;
+}
+
+int ubifs_size(const char *filename, loff_t *size)
+{
+ struct ubifs_info *c = ubifs_sb->s_fs_info;
+ unsigned long inum;
+ struct inode *inode;
+ int err = 0;
+
+ c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY);
+
+ inum = ubifs_findfile(ubifs_sb, (char *)filename);
+ if (!inum) {
+ err = -1;
+ goto out;
+ }
+
+ inode = ubifs_iget(ubifs_sb, inum);
+ if (IS_ERR(inode)) {
+ printf("%s: Error reading inode %ld!\n", __func__, inum);
+ err = PTR_ERR(inode);
+ goto out;
+ }
+
+ *size = inode->i_size;
+
+ ubifs_iput(inode);
+out:
+ ubi_close_volume(c->ubi);
+ return err;
+}
+
/*
* ubifsload...
*/
@@ -875,6 +936,10 @@
return err;
}
+void ubifs_close(void)
+{
+}
+
/* Compat wrappers for common/cmd_ubifs.c */
int ubifs_load(char *filename, u32 addr, u32 size)
{
diff --git a/include/ubifs_uboot.h b/include/ubifs_uboot.h
index 3e0cd72..dab433a 100644
--- a/include/ubifs_uboot.h
+++ b/include/ubifs_uboot.h
@@ -21,8 +21,12 @@
int ubifs_is_mounted(void);
int ubifs_load(char *filename, u32 addr, u32 size);
+int ubifs_set_blk_dev(block_dev_desc_t *rbdd, disk_partition_t *info);
int ubifs_ls(const char *dir_name);
+int ubifs_exists(const char *filename);
+int ubifs_size(const char *filename, loff_t *size);
int ubifs_read(const char *filename, void *buf, loff_t offset,
loff_t size, loff_t *actread);
+void ubifs_close(void);
#endif /* __UBIFS_UBOOT_H__ */