/* * Copyright (c) 2015 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. */ #ifndef included_vnet_mpls_gre_h #define included_vnet_mpls_gre_h #include #include #include #include #include typedef CLIB_PACKED (struct { ip4_header_t ip4; /* 20 bytes */ gre_header_t gre; /* 4 bytes */ mpls_unicast_header_t labels[0]; /* 4 bytes each */ }) ip4_gre_and_mpls_header_t; vnet_hw_interface_class_t mpls_gre_hw_interface_class; typedef enum { #define mpls_error(n,s) MPLS_ERROR_##n, #include #undef mpls_error MPLS_N_ERROR, } mpls_gre_error_t; /* * No protocol info, MPLS labels don't have a next-header field * presumably the label field tells all... */ typedef struct { ip4_address_t tunnel_src; ip4_address_t tunnel_dst; ip4_address_t intfc_address; u32 mask_width; u32 inner_fib_index; u32 outer_fib_index; u32 encap_index; u32 hw_if_index; /* L2 x-connect capable tunnel intfc */ u8 * rewrite_data; u8 l2_only; } mpls_gre_tunnel_t; typedef struct { u8 tunnel_dst[6]; ip4_address_t intfc_address; u32 tx_sw_if_index; u32 inner_fib_index; u32 mask_width; u32 encap_index; u32 hw_if_index; u8 * rewrite_data; u8 l2_only; } mpls_eth_tunnel_t; typedef struct { mpls_unicast_header_t *labels; /* only for policy tunnels */ u8 * rewrite; u32 output_next_index; } mpls_encap_t; typedef struct { u32 tx_fib_index; u32 next_index; /* e.g. ip4/6-input, l2-input */ } mpls_decap_t; typedef struct { /* pool of gre tunnel instances */ mpls_gre_tunnel_t *gre_tunnels; u32 * free_gre_sw_if_indices; /* pool of ethernet tunnel instances */ mpls_eth_tunnel_t *eth_tunnels; u32 * free_eth_sw_if_indices; /* Encap side: map (fib, dst_address) to mpls label stack */ mpls_encap_t * encaps; uword * mpls_encap_by_fib_and_dest; /* Decap side: map rx label to FIB */ mpls_decap_t * decaps; uword * mpls_decap_by_rx_fib_and_label; /* mpls-o-e policy tunnel next index for ip4-classify */ u32 ip_classify_mpls_policy_encap_next_index; /* convenience */ vlib_main_t * vlib_main; vnet_main_t * vnet_main; } mpls_main_t; mpls_main_t mpls_main; format_function_t format_mpls_protocol; format_function_t format_mpls_header; format_function_t format_mpls_header_with_length; format_function_t format_mpls_gre_header_with_length; format_function_t format_mpls_eth_header_with_length; format_function_t format_mpls_unicast_label; format_function_t format_mpls_encap_index; vlib_node_registration_t mpls_input_node; vlib_node_registration_t mpls_policy_encap_node; vnet_device_class_t mpls_gre_device_class; /* Parse mpls protocol as 0xXXXX or protocol name. In either host or network byte order. */ unformat_function_t unformat_mpls_protocol_host_byte_order; unformat_function_t unformat_mpls_protocol_net_byte_order; unformat_function_t unformat_mpls_label_net_byte_order; unformat_function_t unformat_mpls_gre_header; unformat_function_t unformat_pg_mpls_gre_header; /* Parse mpls header. */ unformat_function_t unformat_mpls_header; unformat_function_t unformat_pg_mpls_header; /* manually added to the interface output node in mpls.c */ #define MPLS_GRE_OUTPUT_NEXT_LOOKUP 1 #define MPLS_GRE_OUTPUT_NEXT_DROP VNET_INTERFACE_TX_NEXT_DROP mpls_encap_t * mpls_encap_by_fib_and_dest (mpls_main_t * mm, u32 rx_fib, u32 dst_address); int mpls_label_from_fib_id_and_dest (mpls_main_t *gm, u32 fib_id, u32 dst_address, u32 *labelp); int vnet_mpls_gre_add_del_tunnel (ip4_address_t *src, ip4_address_t *dst, ip4_address_t *intfc, u32 mask_width, u32 inner_fib_id, u32 outer_fib_id, u32 * tunnel_intfc_sw_if_index, u8 l2_only, u8 is_add); int vnet_mpls_ethernet_add_del_tunnel (u8 *dst, ip4_address_t *intfc, u32 mask_width, u32 inner_fib_id, u32 tx_sw_if_index, u32 * tunnel_sw_if_index, u8 l2_only, u8 is_add); int vnet_mpls_gre_delete_fib_tunnels (u32 fib_id); int mpls_fib_reset_labels (u32 fib_id); int vnet_mpls_add_del_decap (u32 rx_fib_id, u32 tx_fib_id, u32 label_host_byte_order, int s_bit, int next_index, int is_add); int vnet_mpls_add_del_encap (ip4_address_t *dest, u32 fib_id, u32 *labels_host_byte_order, u32 policy_tunnel_index, int no_dst_hash, u32 * indexp, int is_add); int vnet_mpls_policy_tunnel_add_rewrite (mpls_main_t * mm, mpls_encap_t * e, u32 policy_tunnel_index); typedef struct { u32 lookup_miss; /* Tunnel-id / index in tunnel vector */ u32 tunnel_id; /* mpls encap index */ u32 mpls_encap_index; /* pkt length */ u32 length; /* tunnel ip4 addresses */ ip4_address_t src; ip4_address_t dst; } mpls_gre_tx_trace_t; u8 * format_mpls_gre_tx_trace (u8 * s, va_list * args); u8 * format_mpls_gre_header (u8 * s, va_list * args); #define foreach_mpls_input_next \ _(DROP, "error-drop") \ _(IP4_INPUT, "ip4-input") \ _(L2_OUTPUT, "l2-output") typedef enum { #define _(s,n) MPLS_INPUT_NEXT_##s, foreach_mpls_input_next #undef _ MPLS_INPUT_N_NEXT, } mpls_input_next_t; typedef struct { u32 lookup_miss; /* Tunnel-id / index in tunnel vector */ u32 tunnel_id; /* output interface */ u32 tx_sw_if_index; /* mpls encap index */ u32 mpls_encap_index; /* pkt length */ u32 length; u8 dst[6]; } mpls_eth_tx_trace_t; u8 * format_mpls_eth_tx_trace (u8 * s, va_list * args); #endif /* included_vnet_mpls_gre_h */