| Trent Jaeger | d28d1e0 | 2005-12-13 23:12:40 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * SELinux support for the XFRM LSM hooks |
| 3 | * |
| 4 | * Author : Trent Jaeger, <jaegert@us.ibm.com> |
| 5 | */ |
| 6 | #ifndef _SELINUX_XFRM_H_ |
| 7 | #define _SELINUX_XFRM_H_ |
| 8 | |
| 9 | int selinux_xfrm_policy_alloc(struct xfrm_policy *xp, struct xfrm_user_sec_ctx *sec_ctx); |
| 10 | int selinux_xfrm_policy_clone(struct xfrm_policy *old, struct xfrm_policy *new); |
| 11 | void selinux_xfrm_policy_free(struct xfrm_policy *xp); |
| 12 | int selinux_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); |
| 13 | void selinux_xfrm_state_free(struct xfrm_state *x); |
| 14 | int selinux_xfrm_policy_lookup(struct xfrm_policy *xp, u32 sk_sid, u8 dir); |
| 15 | |
| 16 | /* |
| 17 | * Extract the security blob from the sock (it's actually on the socket) |
| 18 | */ |
| 19 | static inline struct inode_security_struct *get_sock_isec(struct sock *sk) |
| 20 | { |
| 21 | if (!sk->sk_socket) |
| 22 | return NULL; |
| 23 | |
| 24 | return SOCK_INODE(sk->sk_socket)->i_security; |
| 25 | } |
| 26 | |
| 27 | |
| 28 | static inline u32 selinux_no_sk_sid(struct flowi *fl) |
| 29 | { |
| 30 | /* NOTE: no sock occurs on ICMP reply, forwards, ... */ |
| 31 | /* icmp_reply: authorize as kernel packet */ |
| 32 | if (fl && fl->proto == IPPROTO_ICMP) { |
| 33 | return SECINITSID_KERNEL; |
| 34 | } |
| 35 | |
| 36 | return SECINITSID_ANY_SOCKET; |
| 37 | } |
| 38 | |
| 39 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
| 40 | int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb); |
| 41 | int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb); |
| 42 | #else |
| 43 | static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb) |
| 44 | { |
| 45 | return 0; |
| 46 | } |
| 47 | |
| 48 | static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb) |
| 49 | { |
| 50 | return NF_ACCEPT; |
| 51 | } |
| 52 | #endif |
| 53 | |
| 54 | #endif /* _SELINUX_XFRM_H_ */ |