diff options
Diffstat (limited to 'security/selinux/include/xfrm.h')
| -rw-r--r-- | security/selinux/include/xfrm.h | 91 |
1 files changed, 59 insertions, 32 deletions
diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h index c10f1fc4150..1450f85b946 100644 --- a/security/selinux/include/xfrm.h +++ b/security/selinux/include/xfrm.h @@ -2,64 +2,91 @@ * 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_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); +#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_policy_lookup(struct xfrm_policy *xp, u32 sk_sid, u8 dir); +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); -/* - * 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; +#ifdef CONFIG_SECURITY_NETWORK_XFRM +extern atomic_t selinux_xfrm_refcount; - return SOCK_INODE(sk->sk_socket)->i_security; +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 u32 selinux_no_sk_sid(struct flowi *fl) +static inline void selinux_xfrm_notify_policyload(void) { - /* NOTE: no sock occurs on ICMP reply, forwards, ... */ - /* icmp_reply: authorize as kernel packet */ - if (fl && fl->proto == IPPROTO_ICMP) { - return SECINITSID_KERNEL; + struct net *net; + + rtnl_lock(); + for_each_net(net) { + atomic_inc(&net->xfrm.flow_cache_genid); + rt_genid_bump_all(net); } + rtnl_unlock(); +} +#else +static inline int selinux_xfrm_enabled(void) +{ + return 0; +} - return SECINITSID_ANY_SOCKET; +static inline int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb, + struct common_audit_data *ad) +{ + return 0; } -#ifdef CONFIG_SECURITY_NETWORK_XFRM -int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb); -int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb); -u32 selinux_socket_getpeer_stream(struct sock *sk); -u32 selinux_socket_getpeer_dgram(struct sk_buff *skb); -#else -static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb) +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_postroute_last(u32 isec_sid, struct sk_buff *skb) +static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, + int ckall) { - return NF_ACCEPT; + *sid = SECSID_NULL; + return 0; } -static inline int selinux_socket_getpeer_stream(struct sock *sk) +static inline void selinux_xfrm_notify_policyload(void) { - return SECSID_NULL; } -static inline int selinux_socket_getpeer_dgram(struct sk_buff *skb) +static inline int selinux_xfrm_skb_sid(struct sk_buff *skb, u32 *sid) { - return SECSID_NULL; + *sid = SECSID_NULL; + return 0; } #endif |