| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * 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_ |
| |
| #include <net/flow.h> |
| |
| int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, |
| struct xfrm_user_sec_ctx *uctx, |
| gfp_t gfp); |
| int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, |
| struct xfrm_sec_ctx **new_ctxp); |
| void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx); |
| int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); |
| int selinux_xfrm_state_alloc(struct xfrm_state *x, |
| struct xfrm_user_sec_ctx *uctx); |
| int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x, |
| struct xfrm_sec_ctx *polsec, 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_sec_ctx *ctx, u32 fl_secid, u8 dir); |
| int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x, |
| struct xfrm_policy *xp, |
| const struct flowi *fl); |
| |
| #ifdef CONFIG_SECURITY_NETWORK_XFRM |
| extern atomic_t selinux_xfrm_refcount; |
| |
| static inline int selinux_xfrm_enabled(void) |
| { |
| return (atomic_read(&selinux_xfrm_refcount) > 0); |
| } |
| |
| int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb, |
| struct common_audit_data *ad); |
| int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb, |
| struct common_audit_data *ad, u8 proto); |
| int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall); |
| int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid); |
| |
| static inline void selinux_xfrm_notify_policyload(void) |
| { |
| struct net *net; |
| |
| rtnl_lock(); |
| for_each_net(net) |
| rt_genid_bump_all(net); |
| rtnl_unlock(); |
| } |
| #else |
| static inline int selinux_xfrm_enabled(void) |
| { |
| return 0; |
| } |
| |
| static inline int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb, |
| struct common_audit_data *ad) |
| { |
| return 0; |
| } |
| |
| static inline int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb, |
| struct common_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) |
| { |
| } |
| |
| static inline int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid) |
| { |
| *sid = SECSID_NULL; |
| return 0; |
| } |
| #endif |
| |
| #endif /* _SELINUX_XFRM_H_ */ |