2 * SELinux support for the XFRM LSM hooks
4 * Author : Trent Jaeger, <jaegert@us.ibm.com>
5 * Updated : Venkat Yekkirala, <vyekkirala@TrustedCS.com>
7 #ifndef _SELINUX_XFRM_H_
8 #define _SELINUX_XFRM_H_
10 int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
11 struct xfrm_user_sec_ctx *sec_ctx);
12 int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
13 struct xfrm_sec_ctx **new_ctxp);
14 void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
15 int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
16 int selinux_xfrm_state_alloc(struct xfrm_state *x,
17 struct xfrm_user_sec_ctx *sec_ctx, u32 secid);
18 void selinux_xfrm_state_free(struct xfrm_state *x);
19 int selinux_xfrm_state_delete(struct xfrm_state *x);
20 int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
21 int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
22 struct xfrm_policy *xp, struct flowi *fl);
25 * Extract the security blob from the sock (it's actually on the socket)
27 static inline struct inode_security_struct *get_sock_isec(struct sock *sk)
32 return SOCK_INODE(sk->sk_socket)->i_security;
35 #ifdef CONFIG_SECURITY_NETWORK_XFRM
36 extern atomic_t selinux_xfrm_refcount;
38 static inline int selinux_xfrm_enabled(void)
40 return (atomic_read(&selinux_xfrm_refcount) > 0);
43 int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb,
44 struct avc_audit_data *ad);
45 int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
46 struct avc_audit_data *ad, u8 proto);
47 int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
49 static inline void selinux_xfrm_notify_policyload(void)
51 atomic_inc(&flow_cache_genid);
54 static inline int selinux_xfrm_enabled(void)
59 static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
60 struct avc_audit_data *ad)
65 static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
66 struct avc_audit_data *ad, u8 proto)
71 static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall)
77 static inline void selinux_xfrm_notify_policyload(void)
82 static inline void selinux_skb_xfrm_sid(struct sk_buff *skb, u32 *sid)
84 int err = selinux_xfrm_decode_session(skb, sid, 0);
88 #endif /* _SELINUX_XFRM_H_ */