Modify the ubifs u-boot wrapper function prototypes for generic fs use, and give them their own header file.
This is a preparation patch for adding ubifs support to the generic fs code from fs/fs.c.
Signed-off-by: Hans de Goede hdegoede@redhat.com --- common/cmd_ubifs.c | 14 +++-------- fs/ubifs/ubifs.c | 70 ++++++++++++++++++++++++++++++++++++++++----------- fs/ubifs/ubifs.h | 6 +---- include/ubifs_uboot.h | 29 +++++++++++++++++++++ 4 files changed, 89 insertions(+), 30 deletions(-) create mode 100644 include/ubifs_uboot.h
diff --git a/common/cmd_ubifs.c b/common/cmd_ubifs.c index 8e9a4e5..0a3dd24 100644 --- a/common/cmd_ubifs.c +++ b/common/cmd_ubifs.c @@ -15,11 +15,10 @@ #include <common.h> #include <config.h> #include <command.h> - -#include "../fs/ubifs/ubifs.h" +#include <ubifs_uboot.h>
static int ubifs_initialized; -static int ubifs_mounted; +int ubifs_mounted;
static int do_ubifs_mount(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) @@ -54,14 +53,7 @@ int ubifs_is_mounted(void)
void cmd_ubifs_umount(void) { - - if (ubifs_sb) { - printf("Unmounting UBIFS volume %s!\n", - ((struct ubifs_info *)(ubifs_sb->s_fs_info))->vi.name); - ubifs_umount(ubifs_sb->s_fs_info); - } - - ubifs_sb = NULL; + uboot_ubifs_umount(); ubifs_mounted = 0; ubifs_initialized = 0; } diff --git a/fs/ubifs/ubifs.c b/fs/ubifs/ubifs.c index 6dd6174..5af861c 100644 --- a/fs/ubifs/ubifs.c +++ b/fs/ubifs/ubifs.c @@ -568,7 +568,7 @@ static unsigned long ubifs_findfile(struct super_block *sb, char *filename) return 0; }
-int ubifs_ls(char *filename) +int ubifs_ls(const char *filename) { struct ubifs_info *c = ubifs_sb->s_fs_info; struct file *file; @@ -579,7 +579,7 @@ int ubifs_ls(char *filename) int ret = 0;
c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY); - inum = ubifs_findfile(ubifs_sb, filename); + inum = ubifs_findfile(ubifs_sb, (char *)filename); if (!inum) { ret = -1; goto out; @@ -785,7 +785,8 @@ error: return err; }
-int ubifs_load(char *filename, u32 addr, u32 size) +int ubifs_read(const char *filename, void *buf, loff_t offset, + loff_t size, loff_t *actread) { struct ubifs_info *c = ubifs_sb->s_fs_info; unsigned long inum; @@ -796,10 +797,18 @@ int ubifs_load(char *filename, u32 addr, u32 size) int count; int last_block_size = 0;
+ *actread = 0; + + if (offset & (PAGE_SIZE - 1)) { + printf("ubifs: Error offset must be a multple of %d\n", + PAGE_SIZE); + return -1; + } + c->ubi = ubi_open_volume(c->vi.ubi_num, c->vi.vol_id, UBI_READONLY); /* ubifs_findfile will resolve symlinks, so we know that we get * the real file here */ - inum = ubifs_findfile(ubifs_sb, filename); + inum = ubifs_findfile(ubifs_sb, (char *)filename); if (!inum) { err = -1; goto out; @@ -815,19 +824,24 @@ int ubifs_load(char *filename, u32 addr, u32 size) goto out; }
+ if (offset > inode->i_size) { + printf("ubifs: Error offset (%lld) > file-size (%lld)\n", + offset, size); + err = -1; + goto put_inode; + } + /* * If no size was specified or if size bigger than filesize * set size to filesize */ - if ((size == 0) || (size > inode->i_size)) - size = inode->i_size; + if ((size == 0) || (size > (inode->i_size - offset))) + size = inode->i_size - offset;
count = (size + UBIFS_BLOCK_SIZE - 1) >> UBIFS_BLOCK_SHIFT; - printf("Loading file '%s' to addr 0x%08x with size %d (0x%08x)...\n", - filename, addr, size, size);
- page.addr = (void *)addr; - page.index = 0; + page.addr = buf; + page.index = offset / PAGE_SIZE; page.inode = inode; for (i = 0; i < count; i++) { /* @@ -844,16 +858,44 @@ int ubifs_load(char *filename, u32 addr, u32 size) page.index++; }
- if (err) + if (err) { printf("Error reading file '%s'\n", filename); - else { - setenv_hex("filesize", size); - printf("Done\n"); + *actread = i * PAGE_SIZE; + } else { + *actread = size; }
+put_inode: ubifs_iput(inode);
out: ubi_close_volume(c->ubi); return err; } + +/* Compat wrappers for common/cmd_ubifs.c */ +int ubifs_load(char *filename, u32 addr, u32 size) +{ + loff_t actread; + int err; + + printf("Loading file '%s' to addr 0x%08x...\n", filename, addr); + + err = ubifs_read(filename, (void *)addr, 0, size, &actread); + if (err == 0) { + setenv_hex("filesize", actread); + printf("Done\n"); + } + + return err; +} + +void uboot_ubifs_umount(void) +{ + if (ubifs_sb) { + printf("Unmounting UBIFS volume %s!\n", + ((struct ubifs_info *)(ubifs_sb->s_fs_info))->vi.name); + ubifs_umount(ubifs_sb->s_fs_info); + ubifs_sb = NULL; + } +} diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index a51b237..225965c 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -34,6 +34,7 @@ #include <asm/atomic.h> #include <asm-generic/atomic-long.h> #include <ubi_uboot.h> +#include <ubifs_uboot.h>
#include <linux/ctype.h> #include <linux/time.h> @@ -2379,11 +2380,6 @@ int ubifs_decompress(const void *buf, int len, void *out, int *out_len, #include "key.h"
#ifdef __UBOOT__ -/* these are used in cmd_ubifs.c */ -int ubifs_init(void); -int uboot_ubifs_mount(char *vol_name); void ubifs_umount(struct ubifs_info *c); -int ubifs_ls(char *dir_name); -int ubifs_load(char *filename, u32 addr, u32 size); #endif #endif /* !__UBIFS_H__ */ diff --git a/include/ubifs_uboot.h b/include/ubifs_uboot.h new file mode 100644 index 0000000..d10a909 --- /dev/null +++ b/include/ubifs_uboot.h @@ -0,0 +1,29 @@ +/* + * UBIFS u-boot wrapper functions header + * + * Copyright (C) 2006-2008 Nokia Corporation + * + * (C) Copyright 2008-2009 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * SPDX-License-Identifier: GPL-2.0+ + * + * Authors: Artem Bityutskiy (Битюцкий Артём) + * Adrian Hunter + */ + +#ifndef __UBIFS_UBOOT_H__ +#define __UBIFS_UBOOT_H__ + +extern int ubifs_mounted; + +int ubifs_init(void); +int uboot_ubifs_mount(char *vol_name); +void uboot_ubifs_umount(void); +int ubifs_load(char *filename, u32 addr, u32 size); + +int ubifs_ls(const char *dir_name); +int ubifs_read(const char *filename, void *buf, loff_t offset, + loff_t size, loff_t *actread); + +#endif /* __UBIFS_UBOOT_H__ */