/* * SELinux support for the XFRM LSM hooks * * Author : Trent Jaeger, <jaegert@us.ibm.com> * Updated : Venkat Yekkirala, <vyekkirala@TrustedCS.com> */ #ifndef _SELINUX_XFRM_H_ #define _SELINUX_XFRM_H_ int selinux_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx); int selinux_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new); void selinux_xfrm_policy_free(struct xfrm_policy *xp); int selinux_xfrm_policy_delete(struct xfrm_policy *xp); int selinux_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx, u32 secid); void selinux_xfrm_state_free(struct xfrm_state *x); int selinux_xfrm_state_delete(struct xfrm_state *x); int selinux_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir); int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x, struct xfrm_policy *xp, struct flowi *fl); /* * Extract the security blob from the sock (it's actually on the socket) */ static inline struct inode_security_struct *get_sock_isec(struct sock *sk) { if (!sk->sk_socket) return NULL; return SOCK_INODE(sk->sk_socket)->i_security; } #ifdef CONFIG_SECURITY_NETWORK_XFRM int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb, struct avc_audit_data *ad); int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb, struct avc_audit_data *ad, u8 proto); int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall); static inline void selinux_xfrm_notify_policyload(void) { atomic_inc(&flow_cache_genid); } #else static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb, struct avc_audit_data *ad) { return 0; } static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb, struct avc_audit_data *ad, u8 proto) { return 0; } static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall) { *sid = SECSID_NULL; return 0; } static inline void selinux_xfrm_notify_policyload(void) { } #endif static inline void selinux_skb_xfrm_sid(struct sk_buff *skb, u32 *sid) { int err = selinux_xfrm_decode_session(skb, sid, 0); BUG_ON(err); } #endif /* _SELINUX_XFRM_H_ */