selinux: Set socket NetLabel based on connection endpoint
[linux-2.6.git] / security / selinux / include / netlabel.h
1 /*
2  * SELinux interface to the NetLabel subsystem
3  *
4  * Author : Paul Moore <paul.moore@hp.com>
5  *
6  */
7
8 /*
9  * (c) Copyright Hewlett-Packard Development Company, L.P., 2006
10  *
11  * This program is free software;  you can redistribute it and/or modify
12  * it under the terms of the GNU General Public License as published by
13  * the Free Software Foundation; either version 2 of the License, or
14  * (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY;  without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
19  * the GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program;  if not, write to the Free Software
23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24  *
25  */
26
27 #ifndef _SELINUX_NETLABEL_H_
28 #define _SELINUX_NETLABEL_H_
29
30 #include <linux/types.h>
31 #include <linux/fs.h>
32 #include <linux/net.h>
33 #include <linux/skbuff.h>
34 #include <net/sock.h>
35
36 #include "avc.h"
37 #include "objsec.h"
38
39 #ifdef CONFIG_NETLABEL
40 void selinux_netlbl_cache_invalidate(void);
41
42 void selinux_netlbl_err(struct sk_buff *skb, int error, int gateway);
43
44 void selinux_netlbl_sk_security_reset(struct sk_security_struct *ssec,
45                                       int family);
46
47 int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
48                                  u16 family,
49                                  u32 *type,
50                                  u32 *sid);
51 int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,
52                                  u16 family,
53                                  u32 sid);
54
55 void selinux_netlbl_inet_conn_established(struct sock *sk, u16 family);
56 int selinux_netlbl_socket_post_create(struct socket *sock);
57 int selinux_netlbl_inode_permission(struct inode *inode, int mask);
58 int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
59                                 struct sk_buff *skb,
60                                 u16 family,
61                                 struct avc_audit_data *ad);
62 int selinux_netlbl_socket_setsockopt(struct socket *sock,
63                                      int level,
64                                      int optname);
65 int selinux_netlbl_socket_connect(struct sock *sk, struct sockaddr *addr);
66
67 #else
68 static inline void selinux_netlbl_cache_invalidate(void)
69 {
70         return;
71 }
72
73 static inline void selinux_netlbl_err(struct sk_buff *skb,
74                                       int error,
75                                       int gateway)
76 {
77         return;
78 }
79
80 static inline void selinux_netlbl_sk_security_reset(
81                                                struct sk_security_struct *ssec,
82                                                int family)
83 {
84         return;
85 }
86
87 static inline int selinux_netlbl_skbuff_getsid(struct sk_buff *skb,
88                                                u16 family,
89                                                u32 *type,
90                                                u32 *sid)
91 {
92         *type = NETLBL_NLTYPE_NONE;
93         *sid = SECSID_NULL;
94         return 0;
95 }
96 static inline int selinux_netlbl_skbuff_setsid(struct sk_buff *skb,
97                                                u16 family,
98                                                u32 sid)
99 {
100         return 0;
101 }
102
103 static inline int selinux_netlbl_conn_setsid(struct sock *sk,
104                                              struct sockaddr *addr)
105 {
106         return 0;
107 }
108
109 static inline void selinux_netlbl_inet_conn_established(struct sock *sk,
110                                                         u16 family)
111 {
112         return;
113 }
114 static inline int selinux_netlbl_socket_post_create(struct socket *sock)
115 {
116         return 0;
117 }
118 static inline int selinux_netlbl_inode_permission(struct inode *inode,
119                                                   int mask)
120 {
121         return 0;
122 }
123 static inline int selinux_netlbl_sock_rcv_skb(struct sk_security_struct *sksec,
124                                               struct sk_buff *skb,
125                                               u16 family,
126                                               struct avc_audit_data *ad)
127 {
128         return 0;
129 }
130 static inline int selinux_netlbl_socket_setsockopt(struct socket *sock,
131                                                    int level,
132                                                    int optname)
133 {
134         return 0;
135 }
136 static inline int selinux_netlbl_socket_connect(struct sock *sk,
137                                                 struct sockaddr *addr)
138 {
139         return 0;
140 }
141 #endif /* CONFIG_NETLABEL */
142
143 #endif