[MLSXFRM]: Flow based matching of xfrm policy and state
This implements a seemless mechanism for xfrm policy selection and
state matching based on the flow sid. This also includes the necessary
SELinux enforcement pieces.
Signed-off-by: Venkat Yekkirala <vyekkirala@TrustedCS.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
index c96498a..f51a3e8 100644
--- a/security/selinux/include/xfrm.h
+++ b/security/selinux/include/xfrm.h
@@ -2,6 +2,7 @@
* 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_
@@ -10,10 +11,16 @@
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_policy_delete(struct xfrm_policy *xp);
-int selinux_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
+int selinux_xfrm_state_alloc(struct xfrm_state *x,
+ struct xfrm_user_sec_ctx *sec_ctx, struct xfrm_sec_ctx *pol, 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_policy *xp, u32 sk_sid, u8 dir);
+int selinux_xfrm_policy_lookup(struct xfrm_policy *xp, u32 fl_secid, u8 dir);
+int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
+ struct xfrm_policy *xp, struct flowi *fl);
+int selinux_xfrm_flow_state_match(struct flowi *fl, struct xfrm_state *xfrm);
+int selinux_xfrm_decode_session(struct sk_buff *skb, struct flowi *fl);
+
/*
* Extract the security blob from the sock (it's actually on the socket)
@@ -39,17 +46,21 @@
}
#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);
+int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb,
+ struct avc_audit_data *ad);
+int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
+ struct avc_audit_data *ad);
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_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
+ struct avc_audit_data *ad)
{
return 0;
}
-static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb)
+static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
+ struct avc_audit_data *ad)
{
return 0;
}