ipsec: IPSec protection for multi-point tunnel interfaces

[vpp.git] / src / vnet / ipsec / ipsec_tun.h

diff --git a/src/vnet/ipsec/ipsec_tun.h b/src/vnet/ipsec/ipsec_tun.h
index 2041cbe..56d3de1 100644 (file)
--- a/src/vnet/ipsec/ipsec_tun.h
+++ b/src/vnet/ipsec/ipsec_tun.h
@@ -17,6 +17,36 @@
 
 #include <vnet/ipsec/ipsec.h>
 
+/* *INDENT-OFF* */
+typedef CLIB_PACKED(struct {
+  /*
+   * Key fields: remote ip and spi on incoming packet
+   * all fields in NET byte order
+   */
+  union {
+    struct {
+      ip4_address_t remote_ip;
+      u32 spi;
+    };
+    u64 as_u64;
+  };
+}) ipsec4_tunnel_key_t;
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+typedef CLIB_PACKED(struct {
+  /*
+   * Key fields: remote ip and spi on incoming packet
+   * all fields in NET byte order
+   */
+  ip6_address_t remote_ip;
+  u32 spi;
+}) ipsec6_tunnel_key_t;
+/* *INDENT-ON* */
+
+extern u8 *format_ipsec4_tunnel_key (u8 * s, va_list * args);
+extern u8 *format_ipsec6_tunnel_key (u8 * s, va_list * args);
+
 typedef enum ipsec_protect_flags_t_
 {
   IPSEC_PROTECT_L2 = (1 << 0),
@@ -47,6 +77,8 @@ typedef struct ipsec_tun_protect_t_
 
   ipsec_ep_t itp_tun;
 
+  ip_address_t *itp_key;
+
 } ipsec_tun_protect_t;
 
 #define FOR_EACH_IPSEC_PROTECT_INPUT_SAI(_itp, _sai, body) \
@@ -66,16 +98,28 @@ typedef struct ipsec_tun_protect_t_
   }                                                        \
 }
 
-extern int ipsec_tun_protect_update (u32 sw_if_index, u32 sa_out,
-                                    u32 sa_ins[2]);
-extern int ipsec_tun_protect_del (u32 sw_if_index);
+extern int ipsec_tun_protect_update_one (u32 sw_if_index,
+                                        const ip_address_t * nh,
+                                        u32 sa_out, u32 sa_in);
+extern int ipsec_tun_protect_update (u32 sw_if_index,
+                                    const ip_address_t * nh,
+                                    u32 sa_out, u32 * sa_ins);
+extern int ipsec_tun_protect_update_in (u32 sw_if_index,
+                                       const ip_address_t * nh, u32 sa_in);
+extern int ipsec_tun_protect_update_out (u32 sw_if_index,
+                                        const ip_address_t * nh, u32 sa_out);
+
+extern int ipsec_tun_protect_del (u32 sw_if_index, const ip_address_t * nh);
 
 typedef walk_rc_t (*ipsec_tun_protect_walk_cb_t) (index_t itpi, void *arg);
 extern void ipsec_tun_protect_walk (ipsec_tun_protect_walk_cb_t fn,
                                    void *cttx);
-extern index_t ipsec_tun_protect_find (u32 sw_if_index);
+extern void ipsec_tun_protect_walk_itf (u32 sw_if_index,
+                                       ipsec_tun_protect_walk_cb_t fn,
+                                       void *cttx);
 
 extern u8 *format_ipsec_tun_protect (u8 * s, va_list * args);
+extern u8 *format_ipsec_tun_protect_index (u8 * s, va_list * args);
 
 // FIXME
 extern vlib_node_registration_t ipsec4_tun_input_node;
@@ -84,7 +128,7 @@ extern vlib_node_registration_t ipsec6_tun_input_node;
 /*
  * DP API
  */
-extern ipsec_tun_protect_t *ipsec_protect_pool;
+extern ipsec_tun_protect_t *ipsec_tun_protect_pool;
 
 typedef struct ipsec_tun_lkup_result_t_
 {
@@ -102,7 +146,17 @@ typedef struct ipsec_tun_lkup_result_t_
 always_inline ipsec_tun_protect_t *
 ipsec_tun_protect_get (u32 index)
 {
-  return (pool_elt_at_index (ipsec_protect_pool, index));
+  return (pool_elt_at_index (ipsec_tun_protect_pool, index));
+}
+
+extern index_t *ipsec_tun_protect_sa_by_adj_index;
+always_inline index_t
+ipsec_tun_protect_get_sa_out (adj_index_t ai)
+{
+  ASSERT (vec_len (ipsec_tun_protect_sa_by_adj_index) > ai);
+  ASSERT (INDEX_INVALID != ipsec_tun_protect_sa_by_adj_index[ai]);
+
+  return (ipsec_tun_protect_sa_by_adj_index[ai]);
 }
 
 /*