1 files changed, 114 insertions, 0 deletions
diff --git a/src/vnet/ipsec-gre/ipsec_gre.h b/src/vnet/ipsec-gre/ipsec_gre.h
new file mode 100644
index 00000000000..a2ca64b6f74
--- /dev/null
+++ b/src/vnet/ipsec-gre/ipsec_gre.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * @file
+ * @brief L2-GRE over IPSec packet processing.
+*/
+
+#ifndef included_ipsec_gre_h
+#define included_ipsec_gre_h
+
+#include <vnet/vnet.h>
+#include <vnet/gre/packet.h>
+#include <vnet/gre/gre.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ip/ip4.h>
+#include <vnet/ip/ip4_packet.h>
+#include <vnet/pg/pg.h>
+#include <vnet/ip/format.h>
+
+extern vnet_hw_interface_class_t ipsec_gre_hw_interface_class;
+
+/**
+ * @brief IPSec-GRE errors.
+ *
+*/
+typedef enum
+{
+#define ipsec_gre_error(n,s) IPSEC_GRE_ERROR_##n,
+#include <vnet/ipsec-gre/error.def>
+#undef ipsec_gre_error
+  IPSEC_GRE_N_ERROR,
+} ipsec_gre_error_t;
+
+/**
+ * @brief IPSec-GRE tunnel parameters.
+ *
+*/
+typedef struct
+{
+  ip4_address_t tunnel_src; /**< tunnel IPv4 src address */
+  ip4_address_t tunnel_dst; /**< tunnel IPv4 dst address */
+  u32 local_sa;		    /**< local IPSec SA index */
+  u32 remote_sa;	    /**< remote IPSec SA index */
+  u32 local_sa_id;	    /**< local IPSec SA id */
+  u32 remote_sa_id;	    /**< remote IPSec SA id */
+  u32 hw_if_index;;	    /**< hardware interface index */
+  u32 sw_if_index;;	    /**< software interface index */
+} ipsec_gre_tunnel_t;
+
+/**
+ * @brief IPSec-GRE state.
+ *
+*/
+typedef struct
+{
+  ipsec_gre_tunnel_t *tunnels; /**< pool of tunnel instances */
+
+  uword *tunnel_by_key;	 /**< hash mapping src/dst addr pair to tunnel */
+
+  u32 *free_ipsec_gre_tunnel_hw_if_indices;  /**< free vlib hw_if_indices */
+
+  u32 *tunnel_index_by_sw_if_index;  /**< mapping from sw_if_index to tunnel
+                                          index */
+
+  vlib_main_t *vlib_main;  /**< convenience */
+  vnet_main_t *vnet_main;  /**< convenience */
+} ipsec_gre_main_t;
+
+ipsec_gre_main_t ipsec_gre_main;
+
+extern vlib_node_registration_t ipsec_gre_input_node;
+extern vnet_device_class_t ipsec_gre_device_class;
+
+/* manually added to the interface output node in ipsec_gre.c */
+#define IPSEC_GRE_OUTPUT_NEXT_ESP_ENCRYPT 1
+
+/**
+ * @brief IPSec-GRE tunnel add/del arguments.
+ *
+*/
+typedef struct
+{
+  u8 is_add; /**< 1 - add, 0 - delete */
+
+  ip4_address_t src; /**< tunnel IPv4 src address */
+  ip4_address_t dst; /**< tunnel IPv4 dst address */
+  u32 lsa;	     /**< local IPSec SA id */
+  u32 rsa;	     /**< remote IPSec SA id */
+} vnet_ipsec_gre_add_del_tunnel_args_t;
+
+int vnet_ipsec_gre_add_del_tunnel
+  (vnet_ipsec_gre_add_del_tunnel_args_t * a, u32 * sw_if_indexp);
+
+#endif /* included_ipsec_gre_h */
+
+/*
+* fd.io coding-style-patch-verification: ON
+*
+* Local Variables:
+* eval: (c-set-style "gnu")
+* End:
+*/