projects / deliverable / linux.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 | ||
| 778aae84 DH |
10 | #include <net/flow.h> |
| 11 | ||
| 03e1ad7b PM |
12 | int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, |
| 13 | struct xfrm_user_sec_ctx *sec_ctx); | |
| 14 | int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, | |
| 15 | struct xfrm_sec_ctx **new_ctxp); | |
| 16 | void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx); | |
| 17 | int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); | |
| e0d1caa7 | 18 | int selinux_xfrm_state_alloc(struct xfrm_state *x, |
| 2e5aa866 PM |
19 | struct xfrm_user_sec_ctx *uctx); |
| 20 | int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x, | |
| 21 | struct xfrm_sec_ctx *polsec, u32 secid); | |
| d28d1e08 | 22 | void selinux_xfrm_state_free(struct xfrm_state *x); |
| c8c05a8e | 23 | int selinux_xfrm_state_delete(struct xfrm_state *x); |
| 03e1ad7b | 24 | int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir); |
| e0d1caa7 | 25 | int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x, |
| e33f7704 | 26 | struct xfrm_policy *xp, const struct flowi *fl); |
| d28d1e08 TJ |
27 | |
| 28 | /* | |
| 29 | * Extract the security blob from the sock (it's actually on the socket) | |
| 30 | */ | |
| 31 | static inline struct inode_security_struct *get_sock_isec(struct sock *sk) | |
| 32 | { | |
| 33 | if (!sk->sk_socket) | |
| 34 | return NULL; | |
| 35 | ||
| 36 | return SOCK_INODE(sk->sk_socket)->i_security; | |
| 37 | } | |
| 38 | ||
| d28d1e08 | 39 | #ifdef CONFIG_SECURITY_NETWORK_XFRM |
| d621d35e PM |
40 | extern atomic_t selinux_xfrm_refcount; |
| 41 | ||
| 42 | static inline int selinux_xfrm_enabled(void) | |
| 43 | { | |
| 44 | return (atomic_read(&selinux_xfrm_refcount) > 0); | |
| 45 | } | |
| 46 | ||
| e0d1caa7 | 47 | int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb, |
| 2bf49690 | 48 | struct common_audit_data *ad); |
| e0d1caa7 | 49 | int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb, |
| 2bf49690 | 50 | struct common_audit_data *ad, u8 proto); |
| a51c64f1 | 51 | int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall); |
| 342a0cff VY |
52 | |
| 53 | static inline void selinux_xfrm_notify_policyload(void) | |
| 54 | { | |
| 55 | atomic_inc(&flow_cache_genid); | |
| ee8372dd | 56 | rt_genid_bump(&init_net); |
| 342a0cff | 57 | } |
| d28d1e08 | 58 | #else |
| d621d35e PM |
59 | static inline int selinux_xfrm_enabled(void) |
| 60 | { | |
| 61 | return 0; | |
| 62 | } | |
| 63 | ||
| e0d1caa7 | 64 | static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb, |
| 2bf49690 | 65 | struct common_audit_data *ad) |
| d28d1e08 TJ |
66 | { |
| 67 | return 0; | |
| 68 | } | |
| 69 | ||
| e0d1caa7 | 70 | static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb, |
| 2bf49690 | 71 | struct common_audit_data *ad, u8 proto) |
| d28d1e08 | 72 | { |
| 4e5ab4cb | 73 | return 0; |
| d28d1e08 | 74 | } |
| e6f50719 | 75 | |
| a51c64f1 VY |
76 | static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall) |
| 77 | { | |
| 78 | *sid = SECSID_NULL; | |
| 79 | return 0; | |
| 80 | } | |
| 342a0cff VY |
81 | |
| 82 | static inline void selinux_xfrm_notify_policyload(void) | |
| 83 | { | |
| 84 | } | |
| d28d1e08 TJ |
85 | #endif |
| 86 | ||
| 6b877699 VY |
87 | static inline void selinux_skb_xfrm_sid(struct sk_buff *skb, u32 *sid) |
| 88 | { | |
| 89 | int err = selinux_xfrm_decode_session(skb, sid, 0); | |
| 90 | BUG_ON(err); | |
| 91 | } | |
| 92 | ||
| d28d1e08 | 93 | #endif /* _SELINUX_XFRM_H_ */ |