/* * 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 LISP-GPE definitions. */ #ifndef included_vnet_lisp_gpe_h #define included_vnet_lisp_gpe_h #include <vppinfra/error.h> #include <vppinfra/mhash.h> #include <vnet/vnet.h> #include <vnet/ip/ip.h> #include <vnet/l2/l2_input.h> #include <vnet/ethernet/ethernet.h> #include <vnet/ip/ip4_packet.h> #include <vnet/udp/udp.h> #include <vnet/lisp-cp/lisp_types.h> #include <vnet/lisp-gpe/lisp_gpe_packet.h> #include <vnet/adj/adj_types.h> #include <vppinfra/bihash_24_8.h> #include <vppinfra/bihash_template.h> /** IP4-UDP-LISP encap header */ /* *INDENT-OFF* */ typedef CLIB_PACKED (struct { ip4_header_t ip4; /* 20 bytes */ udp_header_t udp; /* 8 bytes */ lisp_gpe_header_t lisp; /* 8 bytes */ }) ip4_udp_lisp_gpe_header_t; /* *INDENT-ON* */ /** IP6-UDP-LISP encap header */ /* *INDENT-OFF* */ typedef CLIB_PACKED (struct { ip6_header_t ip6; /* 40 bytes */ udp_header_t udp; /* 8 bytes */ lisp_gpe_header_t lisp; /* 8 bytes */ }) ip6_udp_lisp_gpe_header_t; /* *INDENT-ON* */ #define foreach_lisp_gpe_ip_input_next \ _(DROP, "error-drop") \ _(IP4_INPUT, "ip4-input") \ _(IP6_INPUT, "ip6-input") \ _(L2_INPUT, "l2-input") /** Enum of possible next nodes post LISP-GPE decap */ typedef enum { #define _(s,n) LISP_GPE_INPUT_NEXT_##s, foreach_lisp_gpe_ip_input_next #undef _ LISP_GPE_INPUT_N_NEXT, } lisp_gpe_input_next_t; /* Arc to nsh-input added only if nsh-input exists */ #define LISP_GPE_INPUT_NEXT_NSH_INPUT 4 typedef enum { #define lisp_gpe_error(n,s) LISP_GPE_ERROR_##n, #include <vnet/lisp-gpe/lisp_gpe_error.def> #undef lisp_gpe_error LISP_GPE_N_ERROR, } lisp_gpe_error_t; typedef struct tunnel_lookup { /** Lookup lisp-gpe interfaces by dp table (eg. vrf/bridge index) */ uword *hw_if_index_by_dp_table; /** lookup decap tunnel termination sw_if_index by vni and vice versa */ uword *sw_if_index_by_vni; // FIXME - Need this? uword *vni_by_sw_if_index; } tunnel_lookup_t; typedef struct { u32 fwd_entry_index; u32 tunnel_index; } lisp_stats_key_t; typedef struct { u32 vni; dp_address_t deid; dp_address_t seid; ip_address_t loc_rloc; ip_address_t rmt_rloc; vlib_counter_t counters; } lisp_api_stats_t; typedef enum gpe_encap_mode_e { GPE_ENCAP_LISP, GPE_ENCAP_VXLAN, GPE_ENCAP_COUNT } gpe_encap_mode_t; /** LISP-GPE global state*/ typedef struct lisp_gpe_main { /** * @brief DB of all forwarding entries. The Key is:{l-EID,r-EID,vni} * where the EID encodes L2 or L3 */ uword *lisp_gpe_fwd_entries; /** * @brief A Pool of all LISP forwarding entries */ struct lisp_gpe_fwd_entry_t_ *lisp_fwd_entry_pool; /** Free vlib hw_if_indices */ u32 *free_tunnel_hw_if_indices; u8 is_en; /* L3 data structures * ================== */ tunnel_lookup_t l3_ifaces; /* L2 data structures * ================== */ /** L2 LISP FIB */ BVT (clib_bihash) l2_fib; tunnel_lookup_t l2_ifaces; /** Load-balance for a miss in the table */ dpo_id_t l2_lb_cp_lkup; /* NSH data structures * ================== */ BVT (clib_bihash) nsh_fib; tunnel_lookup_t nsh_ifaces; const dpo_id_t *nsh_cp_lkup; gpe_encap_mode_t encap_mode; u8 *dummy_stats_pool; uword *lisp_stats_index_by_key; vlib_combined_counter_main_t counters; /** Native fwd data structures */ fib_route_path_t *native_fwd_rpath[2]; u32 *native_fwd_lfes[2]; /** convenience */ vlib_main_t *vlib_main; vnet_main_t *vnet_main; ip4_main_t *im4; ip6_main_t *im6; ip_lookup_main_t *lm4; ip_lookup_main_t *lm6; } lisp_gpe_main_t; /** LISP-GPE global state*/ extern lisp_gpe_main_t lisp_gpe_main; always_inline lisp_gpe_main_t * vnet_lisp_gpe_get_main () { return &lisp_gpe_main; } extern vlib_node_registration_t lisp_gpe_ip4_input_node; extern vlib_node_registration_t lisp_gpe_ip6_input_node; extern vnet_hw_interface_class_t lisp_gpe_hw_class; u8 *format_lisp_gpe_header_with_length (u8 * s, va_list * args); /** Read LISP-GPE status */ u8 vnet_lisp_gpe_enable_disable_status (void); u32 lisp_gpe_l3_iface_find_or_create (lisp_gpe_main_t * lgm, u32 overlay_table_id, u32 vni); /** Add/del LISP-GPE interface. */ extern void lisp_gpe_del_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id); extern u32 lisp_gpe_add_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id); extern void lisp_gpe_del_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id); extern u32 lisp_gpe_add_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id, u8 with_default_route); typedef struct { u8 is_en; } vnet_lisp_gpe_enable_disable_args_t; clib_error_t * vnet_lisp_gpe_enable_disable (vnet_lisp_gpe_enable_disable_args_t * a); typedef enum { NO_ACTION, FORWARD_NATIVE, SEND_MAP_REQUEST, DROP } negative_fwd_actions_e; /** */ typedef struct { /** forwarding entry index of */ u32 fwd_entry_index; u8 is_src_dst; u8 is_add; /** type of mapping */ u8 is_negative; /** action for negative mappings */ negative_fwd_actions_e action; /** local eid */ gid_address_t lcl_eid; /** remote eid */ gid_address_t rmt_eid; /** vector of locator pairs */ locator_pair_t *locator_pairs; /** FIB index to lookup remote locator at encap */ u32 encap_fib_index; /** FIB index to lookup inner IP at decap */ u32 decap_fib_index; /* TODO remove */ u32 decap_next_index; /** VNI/tenant id in HOST byte order */ u32 vni; /** vrf or bd where fwd entry should be inserted */ union { /** table (vrf) id */ u32 table_id; /** bridge domain id */ u32 bd_id; /** generic access */ u32 dp_table; }; } vnet_lisp_gpe_add_del_fwd_entry_args_t; typedef struct { fib_route_path_t rpath; u8 is_add; } vnet_gpe_native_fwd_rpath_args_t; typedef struct { u32 fwd_entry_index; u32 dp_table; u32 vni; u8 action; dp_address_t leid; dp_address_t reid; } lisp_api_gpe_fwd_entry_t; #define foreach_lgpe_ip4_lookup_next \ _(DROP, "error-drop") \ _(LISP_CP_LOOKUP, "lisp-cp-lookup") typedef enum lgpe_ip4_lookup_next { #define _(sym,str) LGPE_IP4_LOOKUP_NEXT_##sym, foreach_lgpe_ip4_lookup_next #undef _ LGPE_IP4_LOOKUP_N_NEXT, } lgpe_ip4_lookup_next_t; #define foreach_lgpe_ip6_lookup_next \ _(DROP, "error-drop") \ _(LISP_CP_LOOKUP, "lisp-cp-lookup") typedef enum lgpe_ip6_lookup_next { #define _(sym,str) LGPE_IP6_LOOKUP_NEXT_##sym, foreach_lgpe_ip6_lookup_next #undef _ LGPE_IP6_LOOKUP_N_NEXT, } lgpe_ip6_lookup_next_t; u8 *format_vnet_lisp_gpe_status (u8 * s, va_list * args); lisp_api_gpe_fwd_entry_t *vnet_lisp_gpe_fwd_entries_get_by_vni (u32 vni); gpe_encap_mode_t vnet_gpe_get_encap_mode (void); int vnet_gpe_set_encap_mode (gpe_encap_mode_t mode); u8 vnet_lisp_stats_enable_disable_state (void); vnet_api_error_t vnet_lisp_stats_enable_disable (u8 enable); lisp_api_stats_t *vnet_lisp_get_stats (void); int vnet_lisp_flush_stats (void); int vnet_gpe_add_del_native_fwd_rpath (vnet_gpe_native_fwd_rpath_args_t * a); u32 vnet_lisp_gpe_add_nsh_iface (lisp_gpe_main_t * lgm); void vnet_lisp_gpe_del_nsh_iface (lisp_gpe_main_t * lgm); #endif /* included_vnet_lisp_gpe_h */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */