WSL2-Linux-Kernel/fs/squashfs/xattr.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Squashfs - a compressed read only filesystem for Linux
 *
 * Copyright (c) 2010
 * Phillip Lougher <phillip@squashfs.org.uk>
 *
 * xattr.h
 */

#ifdef CONFIG_SQUASHFS_XATTR
extern __le64 *squashfs_read_xattr_id_table(struct super_block *, u64,
		u64 *, int *);
extern int squashfs_xattr_lookup(struct super_block *, unsigned int, int *,
		unsigned int *, unsigned long long *);
#else
static inline __le64 *squashfs_read_xattr_id_table(struct super_block *sb,
		u64 start, u64 *xattr_table_start, int *xattr_ids)
{
	ERROR("Xattrs in filesystem, these will be ignored\n");
	*xattr_table_start = start;
	return ERR_PTR(-ENOTSUPP);
}

static inline int squashfs_xattr_lookup(struct super_block *sb,
		unsigned int index, int *count, unsigned int *size,
		unsigned long long *xattr)
{
	return 0;
}
#define squashfs_listxattr NULL
#define squashfs_xattr_handlers NULL
#endif
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 35 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that 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 write to the free software foundation 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 23 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170857.458548087@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2019-05-20 20:08:00 +03:00			`/* SPDX-License-Identifier: GPL-2.0-or-later */`
squashfs: add xattr support configure option Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2010-05-17 22:39:02 +04:00			`/*`
			`* Squashfs - a compressed read only filesystem for Linux`
			`*`
			`* Copyright (c) 2010`
Squashfs: update email address My existing email address may stop working in a month or two, so update email to one that will continue working. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2011-05-26 13:39:56 +04:00			`* Phillip Lougher <phillip@squashfs.org.uk>`
squashfs: add xattr support configure option Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2010-05-17 22:39:02 +04:00			`*`
			`* xattr.h`
			`*/`

Squashfs: Make XATTR config name consistent with other file systems Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2010-05-31 21:46:29 +04:00			`#ifdef CONFIG_SQUASHFS_XATTR`
squashfs: add xattr support configure option Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2010-05-17 22:39:02 +04:00			`extern __le64 squashfs_read_xattr_id_table(struct super_block , u64,`
			`u64 , int );`
			`extern int squashfs_xattr_lookup(struct super_block , unsigned int, int ,`
Squashfs: fix function prototype The fourth argument should be unsigned. Also add missing include so that the function prototype is defined in xattr_id.c This fixes a couple of sparse warnings. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2010-10-25 03:17:24 +04:00			`unsigned int , unsigned long long );`
squashfs: add xattr support configure option Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2010-05-17 22:39:02 +04:00			`#else`
			`static inline __le64 squashfs_read_xattr_id_table(struct super_block sb,`
			`u64 start, u64 xattr_table_start, int xattr_ids)`
			`{`
			`ERROR("Xattrs in filesystem, these will be ignored\n");`
Squashfs: add sanity checks to id reading at mount time Fsfuzzer generates corrupted filesystems which throw a warn_on in kmalloc. One of these is due to a corrupted superblock no_ids field. Fix this by checking that the number of bytes to be read (and allocated) does not extend into the next filesystem structure. Also add a couple of other sanity checks of the mount-time id table structures. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2011-05-24 07:05:22 +04:00			`*xattr_table_start = start;`
squashfs: add xattr support configure option Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2010-05-17 22:39:02 +04:00			`return ERR_PTR(-ENOTSUPP);`
			`}`

			`static inline int squashfs_xattr_lookup(struct super_block *sb,`
Squashfs: fix function prototype The fourth argument should be unsigned. Also add missing include so that the function prototype is defined in xattr_id.c This fixes a couple of sparse warnings. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2010-10-25 03:17:24 +04:00			`unsigned int index, int count, unsigned int size,`
squashfs: xattr_lookup sparse fix Sparse detected that unsigned pointer was being passed as int pointer. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> [fixed up to deal with code refactoring] Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2010-05-14 03:32:21 +04:00			`unsigned long long *xattr)`
squashfs: add xattr support configure option Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> 2010-05-17 22:39:02 +04:00			`{`
			`return 0;`
			`}`
			`#define squashfs_listxattr NULL`
			`#define squashfs_xattr_handlers NULL`
			`#endif`