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-rw-r--r--include/net/xfrm.h27
1 files changed, 25 insertions, 2 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 1cdb87912137..487abca3ca6f 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -144,6 +144,9 @@ 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 +301,7 @@ 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 +514,25 @@ 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.
@@ -878,8 +901,8 @@ static inline int xfrm_dst_lookup(struct xfrm_dst **dst, struct flowi *fl, unsig
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);

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