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gerrit-public.fairphone.software / kernel / msm-4.9 / e0d1caa7b0d5f02e4f34aa09c695d04251310c6c / . / security / selinux / include / xfrm.h
blob: f51a3e84bd9b2f33ae3332a1025c371f4d184fd1 [file] [log] [blame]
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]1/*
2 * SELinux support for the XFRM LSM hooks
3 *
4 * Author : Trent Jaeger, <jaegert@us.ibm.com>
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame^]5 * Updated : Venkat Yekkirala, <vyekkirala@TrustedCS.com>
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]6 */
7#ifndef _SELINUX_XFRM_H_
8#define _SELINUX_XFRM_H_
9
10int selinux_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx);
11int selinux_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new);
12void selinux_xfrm_policy_free(struct xfrm_policy *xp);
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700[diff] [blame]13int selinux_xfrm_policy_delete(struct xfrm_policy *xp);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame^]14int selinux_xfrm_state_alloc(struct xfrm_state *x,
15 struct xfrm_user_sec_ctx *sec_ctx, struct xfrm_sec_ctx *pol, u32 secid);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]16void selinux_xfrm_state_free(struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700[diff] [blame]17int selinux_xfrm_state_delete(struct xfrm_state *x);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame^]18int selinux_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir);
19int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
20 struct xfrm_policy *xp, struct flowi *fl);
21int selinux_xfrm_flow_state_match(struct flowi *fl, struct xfrm_state *xfrm);
22int selinux_xfrm_decode_session(struct sk_buff *skb, struct flowi *fl);
23
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]24
25/*
26 * Extract the security blob from the sock (it's actually on the socket)
27 */
28static inline struct inode_security_struct *get_sock_isec(struct sock *sk)
29{
30 if (!sk->sk_socket)
31 return NULL;
32
33 return SOCK_INODE(sk->sk_socket)->i_security;
34}
35
36
37static inline u32 selinux_no_sk_sid(struct flowi *fl)
38{
39 /* NOTE: no sock occurs on ICMP reply, forwards, ... */
40 /* icmp_reply: authorize as kernel packet */
41 if (fl && fl->proto == IPPROTO_ICMP) {
42 return SECINITSID_KERNEL;
43 }
44
45 return SECINITSID_ANY_SOCKET;
46}
47
48#ifdef CONFIG_SECURITY_NETWORK_XFRM
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame^]49int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb,
50 struct avc_audit_data *ad);
51int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
52 struct avc_audit_data *ad);
Catherine Zhang2c7946a2006-03-20 22:41:23 -0800[diff] [blame]53u32 selinux_socket_getpeer_stream(struct sock *sk);
54u32 selinux_socket_getpeer_dgram(struct sk_buff *skb);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]55#else
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame^]56static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
57 struct avc_audit_data *ad)
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]58{
59 return 0;
60}
61
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame^]62static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
63 struct avc_audit_data *ad)
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]64{
James Morris4e5ab4c2006-06-09 00:33:33 -0700[diff] [blame]65 return 0;
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]66}
Catherine Zhange6f50712006-03-20 22:49:00 -0800[diff] [blame]67
68static inline int selinux_socket_getpeer_stream(struct sock *sk)
69{
70 return SECSID_NULL;
71}
72
73static inline int selinux_socket_getpeer_dgram(struct sk_buff *skb)
74{
75 return SECSID_NULL;
76}
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]77#endif
78
79#endif /* _SELINUX_XFRM_H_ */