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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 78306438355353e677a5ffcf5e9351604b694159 / . / security / selinux / include / xfrm.h
blob: 74159400eeee7a43ade2000440620f0392b0de85 [file] [log] [blame]
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +0100[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0 */
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]2/*
3 * SELinux support for the XFRM LSM hooks
4 *
5 * Author : Trent Jaeger, <jaegert@us.ibm.com>
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]6 * Updated : Venkat Yekkirala, <vyekkirala@TrustedCS.com>
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]7 */
8#ifndef _SELINUX_XFRM_H_
9#define _SELINUX_XFRM_H_
10
David Howells778aae82012-03-26 16:38:47 +0100[diff] [blame]11#include <net/flow.h>
12
Paul Moore03e1ad72008-04-12 19:07:52 -0700[diff] [blame]13int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
Nikolay Aleksandrov52a4c642014-03-07 12:44:19 +0100[diff] [blame]14 struct xfrm_user_sec_ctx *uctx,
15 gfp_t gfp);
Paul Moore03e1ad72008-04-12 19:07:52 -0700[diff] [blame]16int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
17 struct xfrm_sec_ctx **new_ctxp);
18void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
19int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]20int selinux_xfrm_state_alloc(struct xfrm_state *x,
Paul Moore2e5aa862013-07-23 17:38:38 -0400[diff] [blame]21 struct xfrm_user_sec_ctx *uctx);
22int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x,
23 struct xfrm_sec_ctx *polsec, u32 secid);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]24void selinux_xfrm_state_free(struct xfrm_state *x);
Catherine Zhangc8c05a82006-06-08 23:39:49 -0700[diff] [blame]25int selinux_xfrm_state_delete(struct xfrm_state *x);
Zhongjun Tan8a922802021-04-09 13:48:41 +0800[diff] [blame]26int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
Venkat Yekkiralae0d1caa2006-07-24 23:29:07 -0700[diff] [blame]27int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
Paul Moored1b17b02013-07-23 17:38:40 -0400[diff] [blame]28 struct xfrm_policy *xp,
Paul Moore3df98d72020-09-27 22:38:26 -0400[diff] [blame]29 const struct flowi_common *flic);
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]30
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]31#ifdef CONFIG_SECURITY_NETWORK_XFRM
Paul Moored621d352008-01-29 08:43:36 -0500[diff] [blame]32extern atomic_t selinux_xfrm_refcount;
33
34static inline int selinux_xfrm_enabled(void)
35{
36 return (atomic_read(&selinux_xfrm_refcount) > 0);
37}
38
Paul Mooreeef9b412013-07-23 17:38:39 -0400[diff] [blame]39int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
40 struct common_audit_data *ad);
41int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
42 struct common_audit_data *ad, u8 proto);
Venkat Yekkiralaa51c64f2006-07-27 22:01:34 -0700[diff] [blame]43int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]44int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid);
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]45
46static inline void selinux_xfrm_notify_policyload(void)
47{
fan.duca4c3fc2013-07-30 08:33:53 +0800[diff] [blame]48 struct net *net;
49
Kirill Tkhaif0b07bb12018-03-29 19:20:32 +0300[diff] [blame]50 down_read(&net_rwsem);
Florian Westphal09c75702017-07-17 13:57:26 +0200[diff] [blame]51 for_each_net(net)
fan.duca4c3fc2013-07-30 08:33:53 +0800[diff] [blame]52 rt_genid_bump_all(net);
Kirill Tkhaif0b07bb12018-03-29 19:20:32 +0300[diff] [blame]53 up_read(&net_rwsem);
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]54}
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]55#else
Paul Moored621d352008-01-29 08:43:36 -0500[diff] [blame]56static inline int selinux_xfrm_enabled(void)
57{
58 return 0;
59}
60
Paul Mooreeef9b412013-07-23 17:38:39 -0400[diff] [blame]61static inline int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
62 struct common_audit_data *ad)
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]63{
64 return 0;
65}
66
Paul Mooreeef9b412013-07-23 17:38:39 -0400[diff] [blame]67static inline int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
68 struct common_audit_data *ad,
69 u8 proto)
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]70{
James Morris4e5ab4c2006-06-09 00:33:33 -0700[diff] [blame]71 return 0;
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]72}
Catherine Zhange6f50712006-03-20 22:49:00 -0800[diff] [blame]73
Paul Moored1b17b02013-07-23 17:38:40 -0400[diff] [blame]74static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid,
75 int ckall)
Venkat Yekkiralaa51c64f2006-07-27 22:01:34 -0700[diff] [blame]76{
77 *sid = SECSID_NULL;
78 return 0;
79}
Venkat Yekkirala342a0cf2007-01-26 19:03:48 -0800[diff] [blame]80
81static inline void selinux_xfrm_notify_policyload(void)
82{
83}
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]84
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]85static inline int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid)
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600[diff] [blame]86{
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]87 *sid = SECSID_NULL;
88 return 0;
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600[diff] [blame]89}
Paul Moore817eff72013-12-10 14:57:54 -0500[diff] [blame]90#endif
Venkat Yekkirala6b877692006-11-08 17:04:09 -0600[diff] [blame]91
Trent Jaegerd28d1e02005-12-13 23:12:40 -0800[diff] [blame]92#endif /* _SELINUX_XFRM_H_ */