60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* linux/fs/ext2/xattr_security.c
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* Handler for storing security labels as extended attributes.
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*/
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#include "ext2.h"
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#include <linux/security.h>
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#include "xattr.h"
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static int
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ext2_xattr_security_get(const struct xattr_handler *handler,
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struct dentry *unused, struct inode *inode,
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const char *name, void *buffer, size_t size)
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{
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return ext2_xattr_get(inode, EXT2_XATTR_INDEX_SECURITY, name,
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buffer, size);
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}
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static int
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ext2_xattr_security_set(const struct xattr_handler *handler,
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struct user_namespace *mnt_userns,
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struct dentry *unused, struct inode *inode,
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const char *name, const void *value,
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size_t size, int flags)
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{
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return ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, name,
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value, size, flags);
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}
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static int ext2_initxattrs(struct inode *inode, const struct xattr *xattr_array,
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void *fs_info)
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{
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const struct xattr *xattr;
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int err = 0;
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for (xattr = xattr_array; xattr->name != NULL; xattr++) {
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err = ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY,
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xattr->name, xattr->value,
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xattr->value_len, 0);
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if (err < 0)
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break;
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}
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return err;
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}
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int
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ext2_init_security(struct inode *inode, struct inode *dir,
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const struct qstr *qstr)
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{
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return security_inode_init_security(inode, dir, qstr,
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&ext2_initxattrs, NULL);
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}
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const struct xattr_handler ext2_xattr_security_handler = {
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.prefix = XATTR_SECURITY_PREFIX,
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.get = ext2_xattr_security_get,
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.set = ext2_xattr_security_set,
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};
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