/* * 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> #include <vnet/ipsec/ipsec.h> #include <vnet/ipsec/ipsec_if.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 { /* Required for pool_get_aligned */ CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); 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; extern 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 0 extern int vnet_ipsec_gre_tunnel_add_del (const ipsec_gre_tunnel_add_del_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: */