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gerrit-public.fairphone.software / kernel / msm-4.9 / d621d35e576aa20a0ddae8022c3810f38357c8ff / . / security / selinux / include / xfrm.h
blob: 36b0510efa7b9b1688360cdde9f14849187a0677 [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
Venkat Yekkiralacb969f02006-07-24 23:32:20 -0700[diff] [blame]10int selinux_xfrm_policy_alloc(struct xfrm_policy *xp,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600[diff] [blame]11 struct xfrm_user_sec_ctx *sec_ctx);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]12int selinux_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new);
13void selinux_xfrm_policy_free(struct xfrm_policy *xp);
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700[diff] [blame]14int selinux_xfrm_policy_delete(struct xfrm_policy *xp);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]15int selinux_xfrm_state_alloc(struct xfrm_state *x,
Venkat Yekkiralac1a856c2006-11-08 17:03:44 -0600[diff] [blame]16 struct xfrm_user_sec_ctx *sec_ctx, u32 secid);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]17void selinux_xfrm_state_free(struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700[diff] [blame]18int selinux_xfrm_state_delete(struct xfrm_state *x);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]19int selinux_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir);
20int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
21 struct xfrm_policy *xp, struct flowi *fl);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]22
23/*
24 * Extract the security blob from the sock (it's actually on the socket)
25 */
26static inline struct inode_security_struct *get_sock_isec(struct sock *sk)
27{
28 if (!sk->sk_socket)
29 return NULL;
30
31 return SOCK_INODE(sk->sk_socket)->i_security;
32}
33
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]34#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moored621d352008-01-29 08:43:36 -0500[diff] [blame^]35extern atomic_t selinux_xfrm_refcount;
36
37static inline int selinux_xfrm_enabled(void)
38{
39 return (atomic_read(&selinux_xfrm_refcount) > 0);
40}
41
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]42int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb,
43 struct avc_audit_data *ad);
44int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
Venkat Yekkirala67f83cb2006-11-08 17:04:26 -0600[diff] [blame]45 struct avc_audit_data *ad, u8 proto);
Venkat Yekkiralaa51c64f2006-07-27 22:01:34 -0700[diff] [blame]46int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]47
48static inline void selinux_xfrm_notify_policyload(void)
49{
50 atomic_inc(&flow_cache_genid);
51}
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]52#else
Paul Moored621d352008-01-29 08:43:36 -0500[diff] [blame^]53static inline int selinux_xfrm_enabled(void)
54{
55 return 0;
56}
57
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]58static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
59 struct avc_audit_data *ad)
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]60{
61 return 0;
62}
63
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]64static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
Venkat Yekkirala67f83cb2006-11-08 17:04:26 -0600[diff] [blame]65 struct avc_audit_data *ad, u8 proto)
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]66{
James Morris4e5ab4c2006-06-09 00:33:33 -0700[diff] [blame]67 return 0;
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]68}
Catherine Zhange6f50712006-03-20 22:49:00 -0800[diff] [blame]69
Venkat Yekkiralaa51c64f2006-07-27 22:01:34 -0700[diff] [blame]70static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall)
71{
72 *sid = SECSID_NULL;
73 return 0;
74}
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]75
76static inline void selinux_xfrm_notify_policyload(void)
77{
78}
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]79#endif
80
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600[diff] [blame]81static inline void selinux_skb_xfrm_sid(struct sk_buff *skb, u32 *sid)
82{
83 int err = selinux_xfrm_decode_session(skb, sid, 0);
84 BUG_ON(err);
85}
86
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]87#endif /* _SELINUX_XFRM_H_ */