mirror of https://gitee.com/openkylin/linux.git
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/*
|
|
* Security xattr support for devpts.
|
|
*
|
|
* Author: Stephen Smalley <sds@epoch.ncsc.mil>
|
|
* Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
|
|
*
|
|
* 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 of the License, or (at your option)
|
|
* any later version.
|
|
*/
|
|
#include <linux/string.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/security.h>
|
|
#include <linux/xattr.h>
|
|
|
|
static size_t
|
|
devpts_xattr_security_list(struct inode *inode, char *list, size_t list_len,
|
|
const char *name, size_t name_len)
|
|
{
|
|
return security_inode_listsecurity(inode, list, list_len);
|
|
}
|
|
|
|
static int
|
|
devpts_xattr_security_get(struct inode *inode, const char *name,
|
|
void *buffer, size_t size)
|
|
{
|
|
if (strcmp(name, "") == 0)
|
|
return -EINVAL;
|
|
return security_inode_getsecurity(inode, name, buffer, size);
|
|
}
|
|
|
|
static int
|
|
devpts_xattr_security_set(struct inode *inode, const char *name,
|
|
const void *value, size_t size, int flags)
|
|
{
|
|
if (strcmp(name, "") == 0)
|
|
return -EINVAL;
|
|
return security_inode_setsecurity(inode, name, value, size, flags);
|
|
}
|
|
|
|
struct xattr_handler devpts_xattr_security_handler = {
|
|
.prefix = XATTR_SECURITY_PREFIX,
|
|
.list = devpts_xattr_security_list,
|
|
.get = devpts_xattr_security_get,
|
|
.set = devpts_xattr_security_set,
|
|
};
|