linux/fs/erofs/xattr.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2017-2018 HUAWEI, Inc.
 *             https://www.huawei.com/
 * Copyright (C) 2021-2022, Alibaba Cloud
 */
#include <linux/security.h>
#include <linux/xxhash.h>
#include "xattr.h"

struct erofs_xattr_iter { … };

static int erofs_init_inode_xattrs(struct inode *inode)
{ … }

static bool erofs_xattr_user_list(struct dentry *dentry)
{ … }

static bool erofs_xattr_trusted_list(struct dentry *dentry)
{ … }

static int erofs_xattr_generic_get(const struct xattr_handler *handler,
				   struct dentry *unused, struct inode *inode,
				   const char *name, void *buffer, size_t size)
{ … }

const struct xattr_handler erofs_xattr_user_handler = …;

const struct xattr_handler erofs_xattr_trusted_handler = …;

#ifdef CONFIG_EROFS_FS_SECURITY
const struct xattr_handler __maybe_unused erofs_xattr_security_handler = …;
#endif

const struct xattr_handler * const erofs_xattr_handlers[] = …;

static int erofs_xattr_copy_to_buffer(struct erofs_xattr_iter *it,
				      unsigned int len)
{ … }

static int erofs_listxattr_foreach(struct erofs_xattr_iter *it)
{ … }

static int erofs_getxattr_foreach(struct erofs_xattr_iter *it)
{ … }

static int erofs_xattr_iter_inline(struct erofs_xattr_iter *it,
				   struct inode *inode, bool getxattr)
{ … }

static int erofs_xattr_iter_shared(struct erofs_xattr_iter *it,
				   struct inode *inode, bool getxattr)
{ … }

int erofs_getxattr(struct inode *inode, int index, const char *name,
		   void *buffer, size_t buffer_size)
{ … }

ssize_t erofs_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
{ … }

void erofs_xattr_prefixes_cleanup(struct super_block *sb)
{ … }

int erofs_xattr_prefixes_init(struct super_block *sb)
{ … }

#ifdef CONFIG_EROFS_FS_POSIX_ACL
struct posix_acl *erofs_get_acl(struct inode *inode, int type, bool rcu)
{ … }
#endif