security/integrity/evm/evm_posix_acl.c

Source file repositories/reference/linux-study-clean/security/integrity/evm/evm_posix_acl.c

File Facts

System
Linux kernel
Corpus path
security/integrity/evm/evm_posix_acl.c
Extension
.c
Size
552 bytes
Lines
24
Domain
Core OS
Bucket
Security And Isolation
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2011 IBM Corporation
 *
 * Author:
 * Mimi Zohar <zohar@us.ibm.com>
 */

#include <linux/xattr.h>
#include <linux/evm.h>

int posix_xattr_acl(const char *xattr)
{
	int xattr_len = strlen(xattr);

	if ((strlen(XATTR_NAME_POSIX_ACL_ACCESS) == xattr_len)
	     && (strncmp(XATTR_NAME_POSIX_ACL_ACCESS, xattr, xattr_len) == 0))
		return 1;
	if ((strlen(XATTR_NAME_POSIX_ACL_DEFAULT) == xattr_len)
	     && (strncmp(XATTR_NAME_POSIX_ACL_DEFAULT, xattr, xattr_len) == 0))
		return 1;
	return 0;
}

Annotation

Implementation Notes