| Thomas Gleixner | 68252eb | 2019-05-20 19:08:00 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| Phillip Lougher | 01e5b4e | 2010-05-17 19:39:02 +0100 | [diff] [blame] | 2 | /* |
| 3 | * Squashfs - a compressed read only filesystem for Linux |
| 4 | * |
| 5 | * Copyright (c) 2010 |
| Phillip Lougher | d7f2ff6 | 2011-05-26 10:39:56 +0100 | [diff] [blame] | 6 | * Phillip Lougher <phillip@squashfs.org.uk> |
| Phillip Lougher | 01e5b4e | 2010-05-17 19:39:02 +0100 | [diff] [blame] | 7 | * |
| Phillip Lougher | 01e5b4e | 2010-05-17 19:39:02 +0100 | [diff] [blame] | 8 | * xattr.h |
| 9 | */ |
| 10 | |
| Phillip Lougher | 637d5c9 | 2010-05-31 18:46:29 +0100 | [diff] [blame] | 11 | #ifdef CONFIG_SQUASHFS_XATTR |
| Phillip Lougher | 01e5b4e | 2010-05-17 19:39:02 +0100 | [diff] [blame] | 12 | extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64, |
| 13 | u64 *, int *); |
| 14 | extern int squashfs_xattr_lookup(struct super_block *, unsigned int, int *, |
| Phillip Lougher | 5f3b321 | 2010-10-25 00:17:24 +0100 | [diff] [blame] | 15 | unsigned int *, unsigned long long *); |
| Phillip Lougher | 01e5b4e | 2010-05-17 19:39:02 +0100 | [diff] [blame] | 16 | #else |
| 17 | static inline __le64 *squashfs_read_xattr_id_table(struct super_block *sb, |
| 18 | u64 start, u64 *xattr_table_start, int *xattr_ids) |
| 19 | { |
| Phillip Lougher | f37aa4c | 2021-02-09 13:41:53 -0800 | [diff] [blame] | 20 | struct squashfs_xattr_id_table *id_table; |
| 21 | |
| 22 | id_table = squashfs_read_table(sb, start, sizeof(*id_table)); |
| 23 | if (IS_ERR(id_table)) |
| 24 | return (__le64 *) id_table; |
| 25 | |
| 26 | *xattr_table_start = le64_to_cpu(id_table->xattr_table_start); |
| 27 | kfree(id_table); |
| 28 | |
| Phillip Lougher | 01e5b4e | 2010-05-17 19:39:02 +0100 | [diff] [blame] | 29 | ERROR("Xattrs in filesystem, these will be ignored\n"); |
| 30 | return ERR_PTR(-ENOTSUPP); |
| 31 | } |
| 32 | |
| 33 | static inline int squashfs_xattr_lookup(struct super_block *sb, |
| Phillip Lougher | 5f3b321 | 2010-10-25 00:17:24 +0100 | [diff] [blame] | 34 | unsigned int index, int *count, unsigned int *size, |
| Stephen Hemminger | aa5b189 | 2010-05-13 16:32:21 -0700 | [diff] [blame] | 35 | unsigned long long *xattr) |
| Phillip Lougher | 01e5b4e | 2010-05-17 19:39:02 +0100 | [diff] [blame] | 36 | { |
| 37 | return 0; |
| 38 | } |
| 39 | #define squashfs_listxattr NULL |
| Phillip Lougher | 01e5b4e | 2010-05-17 19:39:02 +0100 | [diff] [blame] | 40 | #define squashfs_xattr_handlers NULL |
| 41 | #endif |