forked from luck/tmp_suning_uos_patched
126 lines
3.4 KiB
C
126 lines
3.4 KiB
C
|
/*
|
||
|
* SELinux interface to the NetLabel subsystem
|
||
|
*
|
||
|
* Author : Paul Moore <paul.moore@hp.com>
|
||
|
*
|
||
|
*/
|
||
|
|
||
|
/*
|
||
|
* (c) Copyright Hewlett-Packard Development Company, L.P., 2006
|
||
|
*
|
||
|
* 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.
|
||
|
*
|
||
|
* 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, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
|
*
|
||
|
*/
|
||
|
|
||
|
#ifndef _SELINUX_NETLABEL_H_
|
||
|
#define _SELINUX_NETLABEL_H_
|
||
|
|
||
|
#ifdef CONFIG_NETLABEL
|
||
|
void selinux_netlbl_cache_invalidate(void);
|
||
|
int selinux_netlbl_socket_post_create(struct socket *sock,
|
||
|
int sock_family,
|
||
|
u32 sid);
|
||
|
void selinux_netlbl_sock_graft(struct sock *sk, struct socket *sock);
|
||
|
u32 selinux_netlbl_inet_conn_request(struct sk_buff *skb, u32 sock_sid);
|
||
|
int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
|
||
|
struct sk_buff *skb,
|
||
|
struct avc_audit_data *ad);
|
||
|
u32 selinux_netlbl_socket_getpeersec_stream(struct socket *sock);
|
||
|
u32 selinux_netlbl_socket_getpeersec_dgram(struct sk_buff *skb);
|
||
|
|
||
|
int __selinux_netlbl_inode_permission(struct inode *inode, int mask);
|
||
|
/**
|
||
|
* selinux_netlbl_inode_permission - Verify the socket is NetLabel labeled
|
||
|
* @inode: the file descriptor's inode
|
||
|
* @mask: the permission mask
|
||
|
*
|
||
|
* Description:
|
||
|
* Looks at a file's inode and if it is marked as a socket protected by
|
||
|
* NetLabel then verify that the socket has been labeled, if not try to label
|
||
|
* the socket now with the inode's SID. Returns zero on success, negative
|
||
|
* values on failure.
|
||
|
*
|
||
|
*/
|
||
|
static inline int selinux_netlbl_inode_permission(struct inode *inode,
|
||
|
int mask)
|
||
|
{
|
||
|
int rc = 0;
|
||
|
struct inode_security_struct *isec;
|
||
|
struct sk_security_struct *sksec;
|
||
|
|
||
|
if (!S_ISSOCK(inode->i_mode))
|
||
|
return 0;
|
||
|
|
||
|
isec = inode->i_security;
|
||
|
sksec = SOCKET_I(inode)->sk->sk_security;
|
||
|
down(&isec->sem);
|
||
|
if (unlikely(sksec->nlbl_state == NLBL_REQUIRE &&
|
||
|
(mask & (MAY_WRITE | MAY_APPEND))))
|
||
|
rc = __selinux_netlbl_inode_permission(inode, mask);
|
||
|
up(&isec->sem);
|
||
|
|
||
|
return rc;
|
||
|
}
|
||
|
#else
|
||
|
static inline void selinux_netlbl_cache_invalidate(void)
|
||
|
{
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
static inline int selinux_netlbl_socket_post_create(struct socket *sock,
|
||
|
int sock_family,
|
||
|
u32 sid)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static inline void selinux_netlbl_sock_graft(struct sock *sk,
|
||
|
struct socket *sock)
|
||
|
{
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
static inline u32 selinux_netlbl_inet_conn_request(struct sk_buff *skb,
|
||
|
u32 sock_sid)
|
||
|
{
|
||
|
return SECSID_NULL;
|
||
|
}
|
||
|
|
||
|
static inline int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
|
||
|
struct sk_buff *skb,
|
||
|
struct avc_audit_data *ad)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static inline u32 selinux_netlbl_socket_getpeersec_stream(struct socket *sock)
|
||
|
{
|
||
|
return SECSID_NULL;
|
||
|
}
|
||
|
|
||
|
static inline u32 selinux_netlbl_socket_getpeersec_dgram(struct sk_buff *skb)
|
||
|
{
|
||
|
return SECSID_NULL;
|
||
|
}
|
||
|
|
||
|
static inline int selinux_netlbl_inode_permission(struct inode *inode,
|
||
|
int mask)
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
#endif /* CONFIG_NETLABEL */
|
||
|
|
||
|
#endif
|