[NETFILTER]: Fix xfrm lookup in ip_route_me_harder/ip6_route_me_harder

[net-next-2.6.git] / include / net / xfrm.h

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index a9d0d8c5dfbffa04c1ca67ccb35e464940301833..d6111a2f0a23d07bb25afe53e3806594f538f02d 100644 (file)
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -2,11 +2,12 @@
 #define _NET_XFRM_H
 
 #include <linux/compiler.h>
+#include <linux/in.h>
 #include <linux/xfrm.h>
 #include <linux/spinlock.h>
 #include <linux/list.h>
 #include <linux/skbuff.h>
-#include <linux/netdevice.h>
+#include <linux/socket.h>
 #include <linux/crypto.h>
 #include <linux/pfkeyv2.h>
 #include <linux/in6.h>
@@ -144,6 +145,9 @@ struct xfrm_state
         * transformer. */
        struct xfrm_type        *type;
 
+       /* Security context */
+       struct xfrm_sec_ctx     *security;
+
        /* Private data of this transformer, format is opaque,
         * interpreted by xfrm_type methods. */
        void                    *data;
@@ -298,6 +302,7 @@ struct xfrm_policy
        __u8                    flags;
        __u8                    dead;
        __u8                    xfrm_nr;
+       struct xfrm_sec_ctx     *security;
        struct xfrm_tmpl        xfrm_vec[XFRM_MAX_DEPTH];
 };
 
@@ -510,6 +515,25 @@ xfrm_selector_match(struct xfrm_selector *sel, struct flowi *fl,
        return 0;
 }
 
+#ifdef CONFIG_SECURITY_NETWORK_XFRM
+/*     If neither has a context --> match
+ *     Otherwise, both must have a context and the sids, doi, alg must match
+ */
+static inline int xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ctx *s2)
+{
+       return ((!s1 && !s2) ||
+               (s1 && s2 &&
+                (s1->ctx_sid == s2->ctx_sid) &&
+                (s1->ctx_doi == s2->ctx_doi) &&
+                (s1->ctx_alg == s2->ctx_alg)));
+}
+#else
+static inline int xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ctx *s2)
+{
+       return 1;
+}
+#endif
+
 /* A struct encoding bundle of transformations to apply to some set of flow.
  *
  * dst->child points to the next element of bundle.
@@ -644,7 +668,7 @@ static inline int xfrm6_policy_check(struct sock *sk, int dir, struct sk_buff *s
        return xfrm_policy_check(sk, dir, skb, AF_INET6);
 }
 
-
+extern int xfrm_decode_session(struct sk_buff *skb, struct flowi *fl, unsigned short family);
 extern int __xfrm_route_forward(struct sk_buff *skb, unsigned short family);
 
 static inline int xfrm_route_forward(struct sk_buff *skb, unsigned short family)
@@ -807,7 +831,7 @@ struct xfrm_tunnel {
 };
 
 struct xfrm6_tunnel {
-       int (*handler)(struct sk_buff **pskb, unsigned int *nhoffp);
+       int (*handler)(struct sk_buff **pskb);
        void (*err_handler)(struct sk_buff *skb, struct inet6_skb_parm *opt,
                            int type, int code, int offset, __u32 info);
 };
@@ -844,8 +868,8 @@ extern int xfrm4_rcv(struct sk_buff *skb);
 extern int xfrm4_output(struct sk_buff *skb);
 extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler);
 extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler);
-extern int xfrm6_rcv_spi(struct sk_buff **pskb, unsigned int *nhoffp, u32 spi);
-extern int xfrm6_rcv(struct sk_buff **pskb, unsigned int *nhoffp);
+extern int xfrm6_rcv_spi(struct sk_buff **pskb, u32 spi);
+extern int xfrm6_rcv(struct sk_buff **pskb);
 extern int xfrm6_tunnel_register(struct xfrm6_tunnel *handler);
 extern int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler);
 extern u32 xfrm6_tunnel_alloc_spi(xfrm_address_t *saddr);
@@ -875,11 +899,11 @@ static inline int xfrm_dst_lookup(struct xfrm_dst **dst, struct flowi *fl, unsig
 } 
 #endif
 
-struct xfrm_policy *xfrm_policy_alloc(int gfp);
+struct xfrm_policy *xfrm_policy_alloc(gfp_t gfp);
 extern int xfrm_policy_walk(int (*func)(struct xfrm_policy *, int, int, void*), void *);
 int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl);
-struct xfrm_policy *xfrm_policy_bysel(int dir, struct xfrm_selector *sel,
-                                     int delete);
+struct xfrm_policy *xfrm_policy_bysel_ctx(int dir, struct xfrm_selector *sel,
+                                         struct xfrm_sec_ctx *ctx, int delete);
 struct xfrm_policy *xfrm_policy_byid(int dir, u32 id, int delete);
 void xfrm_policy_flush(void);
 u32 xfrm_get_acqseq(void);
@@ -890,6 +914,7 @@ struct xfrm_state * xfrm_find_acq(u8 mode, u32 reqid, u8 proto,
 extern void xfrm_policy_flush(void);
 extern int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol);
 extern int xfrm_flush_bundles(void);
+extern void xfrm_flush_all_bundles(void);
 extern int xfrm_bundle_ok(struct xfrm_dst *xdst, struct flowi *fl, int family);
 extern void xfrm_init_pmtu(struct dst_entry *dst);
 
@@ -931,4 +956,9 @@ static inline int xfrm_addr_cmp(xfrm_address_t *a, xfrm_address_t *b,
        }
 }
 
+static inline int xfrm_policy_id2dir(u32 index)
+{
+       return index & 7;
+}
+
 #endif /* _NET_XFRM_H */