projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| d28d1e08 TJ |
1 | /* |
| 2 | * SELinux support for the XFRM LSM hooks | |
| 3 | * | |
| 4 | * Author : Trent Jaeger, <jaegert@us.ibm.com> | |
| e0d1caa7 | 5 | * Updated : Venkat Yekkirala, <vyekkirala@TrustedCS.com> |
| d28d1e08 TJ |
6 | */ |
| 7 | #ifndef _SELINUX_XFRM_H_ | |
| 8 | #define _SELINUX_XFRM_H_ | |
| 9 | ||
| 03e1ad7b PM |
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); | |
| e0d1caa7 | 16 | int selinux_xfrm_state_alloc(struct xfrm_state *x, |
| c1a856c9 | 17 | struct xfrm_user_sec_ctx *sec_ctx, u32 secid); |
| d28d1e08 | 18 | void selinux_xfrm_state_free(struct xfrm_state *x); |
| c8c05a8e | 19 | int selinux_xfrm_state_delete(struct xfrm_state *x); |
| 03e1ad7b | 20 | int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
| e0d1caa7 VY |
21 | int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x, |
| 22 | struct xfrm_policy *xp, struct flowi *fl); | |
| d28d1e08 TJ |
23 | |
| 24 | /* | |
| 25 | * Extract the security blob from the sock (it's actually on the socket) | |
| 26 | */ | |
| 27 | static inline struct inode_security_struct *get_sock_isec(struct sock *sk) | |
| 28 | { | |
| 29 | if (!sk->sk_socket) | |
| 30 | return NULL; | |
| 31 | ||
| 32 | return SOCK_INODE(sk->sk_socket)->i_security; | |
| 33 | } | |
| 34 | ||
| d28d1e08 | 35 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
| d621d35e PM |
36 | extern atomic_t selinux_xfrm_refcount; |
| 37 | ||
| 38 | static inline int selinux_xfrm_enabled(void) | |
| 39 | { | |
| 40 | return (atomic_read(&selinux_xfrm_refcount) > 0); | |
| 41 | } | |
| 42 | ||
| e0d1caa7 | 43 | int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb, |
| 2bf49690 | 44 | struct common_audit_data *ad); |
| e0d1caa7 | 45 | int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb, |
| 2bf49690 | 46 | struct common_audit_data *ad, u8 proto); |
| a51c64f1 | 47 | int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall); |
| 342a0cff VY |
48 | |
| 49 | static inline void selinux_xfrm_notify_policyload(void) | |
| 50 | { | |
| 51 | atomic_inc(&flow_cache_genid); | |
| 52 | } | |
| d28d1e08 | 53 | #else |
| d621d35e PM |
54 | static inline int selinux_xfrm_enabled(void) |
| 55 | { | |
| 56 | return 0; | |
| 57 | } | |
| 58 | ||
| e0d1caa7 | 59 | static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb, |
| 2bf49690 | 60 | struct common_audit_data *ad) |
| d28d1e08 TJ |
61 | { |
| 62 | return 0; | |
| 63 | } | |
| 64 | ||
| e0d1caa7 | 65 | static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb, |
| 2bf49690 | 66 | struct common_audit_data *ad, u8 proto) |
| d28d1e08 | 67 | { |
| 4e5ab4cb | 68 | return 0; |
| d28d1e08 | 69 | } |
| e6f50719 | 70 | |
| a51c64f1 VY |
71 | static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall) |
| 72 | { | |
| 73 | *sid = SECSID_NULL; | |
| 74 | return 0; | |
| 75 | } | |
| 342a0cff VY |
76 | |
| 77 | static inline void selinux_xfrm_notify_policyload(void) | |
| 78 | { | |
| 79 | } | |
| d28d1e08 TJ |
80 | #endif |
| 81 | ||
| 6b877699 VY |
82 | static inline void selinux_skb_xfrm_sid(struct sk_buff *skb, u32 *sid) |
| 83 | { | |
| 84 | int err = selinux_xfrm_decode_session(skb, sid, 0); | |
| 85 | BUG_ON(err); | |
| 86 | } | |
| 87 | ||
| d28d1e08 | 88 | #endif /* _SELINUX_XFRM_H_ */ |