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authorArnaud Ebalard <arno@natisbad.org>2008-10-05 13:33:42 -0700
committerDavid S. Miller <davem@davemloft.net>2008-10-05 13:33:42 -0700
commit13c1d18931ebb5cf407cb348ef2cd6284d68902d (patch)
tree6d590f85e48b4cce8f67e42c65b88fce8fcc49c6 /include
parent95430c0b140c31cb9e39f876afe1c0e9947d1aaf (diff)
xfrm: MIGRATE enhancements (draft-ebalard-mext-pfkey-enhanced-migrate)
Provides implementation of the enhancements of XFRM/PF_KEY MIGRATE mechanism specified in draft-ebalard-mext-pfkey-enhanced-migrate-00. Defines associated PF_KEY SADB_X_EXT_KMADDRESS extension and XFRM/netlink XFRMA_KMADDRESS attribute. Signed-off-by: Arnaud Ebalard <arno@natisbad.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/pfkeyv2.h13
-rw-r--r--include/linux/xfrm.h10
-rw-r--r--include/net/xfrm.h15
3 files changed, 34 insertions, 4 deletions
diff --git a/include/linux/pfkeyv2.h b/include/linux/pfkeyv2.h
index 700725ddcaa..01b262959f2 100644
--- a/include/linux/pfkeyv2.h
+++ b/include/linux/pfkeyv2.h
@@ -226,6 +226,15 @@ struct sadb_x_sec_ctx {
} __attribute__((packed));
/* sizeof(struct sadb_sec_ctx) = 8 */
+/* Used by MIGRATE to pass addresses IKE will use to perform
+ * negotiation with the peer */
+struct sadb_x_kmaddress {
+ uint16_t sadb_x_kmaddress_len;
+ uint16_t sadb_x_kmaddress_exttype;
+ uint32_t sadb_x_kmaddress_reserved;
+} __attribute__((packed));
+/* sizeof(struct sadb_x_kmaddress) == 8 */
+
/* Message types */
#define SADB_RESERVED 0
#define SADB_GETSPI 1
@@ -346,7 +355,9 @@ struct sadb_x_sec_ctx {
#define SADB_X_EXT_NAT_T_DPORT 22
#define SADB_X_EXT_NAT_T_OA 23
#define SADB_X_EXT_SEC_CTX 24
-#define SADB_EXT_MAX 24
+/* Used with MIGRATE to pass @ to IKE for negotiation */
+#define SADB_X_EXT_KMADDRESS 25
+#define SADB_EXT_MAX 25
/* Identity Extension values */
#define SADB_IDENTTYPE_RESERVED 0
diff --git a/include/linux/xfrm.h b/include/linux/xfrm.h
index fb0c215a305..4bc1e6b86cb 100644
--- a/include/linux/xfrm.h
+++ b/include/linux/xfrm.h
@@ -279,6 +279,7 @@ enum xfrm_attr_type_t {
XFRMA_POLICY_TYPE, /* struct xfrm_userpolicy_type */
XFRMA_MIGRATE,
XFRMA_ALG_AEAD, /* struct xfrm_algo_aead */
+ XFRMA_KMADDRESS, /* struct xfrm_user_kmaddress */
__XFRMA_MAX
#define XFRMA_MAX (__XFRMA_MAX - 1)
@@ -415,6 +416,15 @@ struct xfrm_user_report {
struct xfrm_selector sel;
};
+/* Used by MIGRATE to pass addresses IKE should use to perform
+ * SA negotiation with the peer */
+struct xfrm_user_kmaddress {
+ xfrm_address_t local;
+ xfrm_address_t remote;
+ __u32 reserved;
+ __u16 family;
+};
+
struct xfrm_user_migrate {
xfrm_address_t old_daddr;
xfrm_address_t old_saddr;
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index b98d2056f27..11c890ad8eb 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -492,6 +492,13 @@ struct xfrm_policy
struct xfrm_tmpl xfrm_vec[XFRM_MAX_DEPTH];
};
+struct xfrm_kmaddress {
+ xfrm_address_t local;
+ xfrm_address_t remote;
+ u32 reserved;
+ u16 family;
+};
+
struct xfrm_migrate {
xfrm_address_t old_daddr;
xfrm_address_t old_saddr;
@@ -531,7 +538,7 @@ struct xfrm_mgr
int (*new_mapping)(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport);
int (*notify_policy)(struct xfrm_policy *x, int dir, struct km_event *c);
int (*report)(u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr);
- int (*migrate)(struct xfrm_selector *sel, u8 dir, u8 type, struct xfrm_migrate *m, int num_bundles);
+ int (*migrate)(struct xfrm_selector *sel, u8 dir, u8 type, struct xfrm_migrate *m, int num_bundles, struct xfrm_kmaddress *k);
};
extern int xfrm_register_km(struct xfrm_mgr *km);
@@ -1432,12 +1439,14 @@ extern int xfrm_bundle_ok(struct xfrm_policy *pol, struct xfrm_dst *xdst,
#ifdef CONFIG_XFRM_MIGRATE
extern int km_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
- struct xfrm_migrate *m, int num_bundles);
+ struct xfrm_migrate *m, int num_bundles,
+ struct xfrm_kmaddress *k);
extern struct xfrm_state * xfrm_migrate_state_find(struct xfrm_migrate *m);
extern struct xfrm_state * xfrm_state_migrate(struct xfrm_state *x,
struct xfrm_migrate *m);
extern int xfrm_migrate(struct xfrm_selector *sel, u8 dir, u8 type,
- struct xfrm_migrate *m, int num_bundles);
+ struct xfrm_migrate *m, int num_bundles,
+ struct xfrm_kmaddress *k);
#endif
extern wait_queue_head_t km_waitq;