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Trent Jaegerd28d1e02005-12-13 23:12:40 -08001/*
2 * SELinux support for the XFRM LSM hooks
3 *
4 * Author : Trent Jaeger, <jaegert@us.ibm.com>
5 */
6#ifndef _SELINUX_XFRM_H_
7#define _SELINUX_XFRM_H_
8
9int selinux_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx);
10int selinux_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new);
11void selinux_xfrm_policy_free(struct xfrm_policy *xp);
Catherine Zhangc8c05a82006-06-08 23:39:49 -070012int selinux_xfrm_policy_delete(struct xfrm_policy *xp);
Trent Jaegerd28d1e02005-12-13 23:12:40 -080013int selinux_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
14void selinux_xfrm_state_free(struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -070015int selinux_xfrm_state_delete(struct xfrm_state *x);
Trent Jaegerd28d1e02005-12-13 23:12:40 -080016int selinux_xfrm_policy_lookup(struct xfrm_policy *xp, u32 sk_sid, u8 dir);
17
18/*
19 * Extract the security blob from the sock (it's actually on the socket)
20 */
21static inline struct inode_security_struct *get_sock_isec(struct sock *sk)
22{
23 if (!sk->sk_socket)
24 return NULL;
25
26 return SOCK_INODE(sk->sk_socket)->i_security;
27}
28
29
30static inline u32 selinux_no_sk_sid(struct flowi *fl)
31{
32 /* NOTE: no sock occurs on ICMP reply, forwards, ... */
33 /* icmp_reply: authorize as kernel packet */
34 if (fl && fl->proto == IPPROTO_ICMP) {
35 return SECINITSID_KERNEL;
36 }
37
38 return SECINITSID_ANY_SOCKET;
39}
40
41#ifdef CONFIG_SECURITY_NETWORK_XFRM
42int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb);
43int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb);
Catherine Zhang2c7946a2006-03-20 22:41:23 -080044u32 selinux_socket_getpeer_stream(struct sock *sk);
45u32 selinux_socket_getpeer_dgram(struct sk_buff *skb);
Trent Jaegerd28d1e02005-12-13 23:12:40 -080046#else
47static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb)
48{
49 return 0;
50}
51
52static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb)
53{
54 return NF_ACCEPT;
55}
Catherine Zhange6f50712006-03-20 22:49:00 -080056
57static inline int selinux_socket_getpeer_stream(struct sock *sk)
58{
59 return SECSID_NULL;
60}
61
62static inline int selinux_socket_getpeer_dgram(struct sk_buff *skb)
63{
64 return SECSID_NULL;
65}
Trent Jaegerd28d1e02005-12-13 23:12:40 -080066#endif
67
68#endif /* _SELINUX_XFRM_H_ */