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gerrit-public.fairphone.software / kernel / msm-4.9 / 6c48acfb2affa8b2aed810bb67888e0d1720a884 / . / security / selinux / include / xfrm.h
blob: 48c3cc94c1681718a78e6793c7e961e2d404f3fb [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
David Howells778aae82012-03-26 16:38:47 +0100[diff] [blame]10#include <net/flow.h>
11
Paul Moore03e1ad72008-04-12 19:07:52 -0700[diff] [blame]12int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
Paul Moored1b17b02013-07-23 17:38:40 -0400[diff] [blame]13 struct xfrm_user_sec_ctx *uctx);
Paul Moore03e1ad72008-04-12 19:07:52 -0700[diff] [blame]14int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
15 struct xfrm_sec_ctx **new_ctxp);
16void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
17int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]18int selinux_xfrm_state_alloc(struct xfrm_state *x,
Paul Moore2e5aa862013-07-23 17:38:38 -0400[diff] [blame]19 struct xfrm_user_sec_ctx *uctx);
20int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x,
21 struct xfrm_sec_ctx *polsec, u32 secid);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]22void selinux_xfrm_state_free(struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700[diff] [blame]23int selinux_xfrm_state_delete(struct xfrm_state *x);
Paul Moore03e1ad72008-04-12 19:07:52 -0700[diff] [blame]24int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]25int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
Paul Moored1b17b02013-07-23 17:38:40 -0400[diff] [blame]26 struct xfrm_policy *xp,
27 const struct flowi *fl);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]28
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]29#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moored621d352008-01-29 08:43:36 -0500[diff] [blame]30extern atomic_t selinux_xfrm_refcount;
31
32static inline int selinux_xfrm_enabled(void)
33{
34 return (atomic_read(&selinux_xfrm_refcount) > 0);
35}
36
Paul Mooreeef9b412013-07-23 17:38:39 -0400[diff] [blame]37int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
38 struct common_audit_data *ad);
39int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
40 struct common_audit_data *ad, u8 proto);
Venkat Yekkiralaa51c64f2006-07-27 22:01:34 -0700[diff] [blame]41int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]42int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid);
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]43
44static inline void selinux_xfrm_notify_policyload(void)
45{
fan.duca4c3fc2013-07-30 08:33:53 +0800[diff] [blame]46 struct net *net;
47
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]48 atomic_inc(&flow_cache_genid);
fan.duca4c3fc2013-07-30 08:33:53 +0800[diff] [blame]49 rtnl_lock();
50 for_each_net(net)
51 rt_genid_bump_all(net);
52 rtnl_unlock();
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]53}
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]54#else
Paul Moored621d352008-01-29 08:43:36 -0500[diff] [blame]55static inline int selinux_xfrm_enabled(void)
56{
57 return 0;
58}
59
Paul Mooreeef9b412013-07-23 17:38:39 -0400[diff] [blame]60static inline int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
61 struct common_audit_data *ad)
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]62{
63 return 0;
64}
65
Paul Mooreeef9b412013-07-23 17:38:39 -0400[diff] [blame]66static inline int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
67 struct common_audit_data *ad,
68 u8 proto)
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]69{
James Morris4e5ab4c2006-06-09 00:33:33 -0700[diff] [blame]70 return 0;
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]71}
Catherine Zhange6f50712006-03-20 22:49:00 -0800[diff] [blame]72
Paul Moored1b17b02013-07-23 17:38:40 -0400[diff] [blame]73static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid,
74 int ckall)
Venkat Yekkiralaa51c64f2006-07-27 22:01:34 -0700[diff] [blame]75{
76 *sid = SECSID_NULL;
77 return 0;
78}
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]79
80static inline void selinux_xfrm_notify_policyload(void)
81{
82}
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]83
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]84static inline int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid)
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600[diff] [blame]85{
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]86 *sid = SECSID_NULL;
87 return 0;
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600[diff] [blame]88}
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]89#endif
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600[diff] [blame]90
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]91#endif /* _SELINUX_XFRM_H_ */