/* * Copyright (c) 2020 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 __LCP_ITF_PAIR_H__ #define __LCP_ITF_PAIR_H__ #include #include #include #include extern vlib_log_class_t lcp_itf_pair_logger; #define LCP_ITF_PAIR_DBG(...) \ vlib_log_debug (lcp_itf_pair_logger, __VA_ARGS__); #define LCP_ITF_PAIR_INFO(...) \ vlib_log_info (lcp_itf_pair_logger, __VA_ARGS__); #define LCP_ITF_PAIR_NOTICE(...) \ vlib_log_notice (lcp_itf_pair_logger, __VA_ARGS__); #define LCP_ITF_PAIR_WARN(...) \ vlib_log_warn (lcp_itf_pair_logger, __VA_ARGS__); #define LCP_ITF_PAIR_ERR(...) vlib_log_err (lcp_itf_pair_logger, __VA_ARGS__); #define foreach_lcp_itf_pair_flag _ (STALE, 0, "stale") typedef enum lip_flag_t_ { #define _(a, b, c) LIP_FLAG_##a = (1 << b), foreach_lcp_itf_pair_flag #undef _ } lip_flag_t; typedef enum { LCP_ITF_HOST_TAP = 0, LCP_ITF_HOST_TUN = 1, } lip_host_type_t; #define N_LCP_ITF_HOST (LCP_ITF_HOST_TUN + 1) typedef struct lcp_itf_phy_adj { adj_index_t adj_index[N_AF]; } lcp_itf_phy_adj_t; /** * A pair of interfaces */ typedef struct lcp_itf_pair_t_ { u32 lip_host_sw_if_index; /* VPP's sw_if_index for the host tap */ u32 lip_phy_sw_if_index; /* VPP's sw_if_index for the phy */ u8 *lip_host_name; /* linux's name for the tap */ u32 lip_vif_index; /* linux's index for the tap */ u8 *lip_namespace; /* namespace in which the tap lives */ lip_host_type_t lip_host_type; /* type of host interface */ lcp_itf_phy_adj_t lip_phy_adjs; /* adjacencies for phy l3 interface */ lip_flag_t lip_flags; /* Flags */ u8 lip_rewrite_len; /* The length of an L2 MAC rewrite */ f64 lip_create_ts; /* Timestamp of creation */ } lcp_itf_pair_t; extern lcp_itf_pair_t *lcp_itf_pair_pool; extern vlib_node_registration_t lcp_ethernet_node; u8 *format_lcp_itf_pair (u8 *s, va_list *args); void lcp_itf_pair_show (u32 phy_sw_if_index); u32 lcp_itf_num_pairs (void); /** * Get an interface-pair object from its VPP index */ extern lcp_itf_pair_t *lcp_itf_pair_get (index_t index); /** * Find a interface-pair object from the host interface * * @param host_sw_if_index host interface * @return VPP's object index */ extern index_t lcp_itf_pair_find_by_vif (u32 vif_index); /** * Create an interface-pair * * @return error code */ extern int lcp_itf_pair_add (u32 host_sw_if_index, u32 phy_sw_if_index, u8 *host_name, u32 host_index, lip_host_type_t host_type, u8 *ns); extern int lcp_itf_pair_del (u32 phy_sw_if_index); /** * Create an interface-pair from PHY sw_if_index and tap name. * * @return error code */ extern int lcp_itf_pair_create (u32 phy_sw_if_index, u8 *host_if_name, lip_host_type_t host_if_type, u8 *ns, u32 *host_sw_if_indexp); /** * Delete a LCP_ITF_PAIR */ extern int lcp_itf_pair_delete (u32 phy_sw_if_index); /** * Callback function invoked during a walk of all interface-pairs */ typedef walk_rc_t (*lcp_itf_pair_walk_cb_t) (index_t index, void *ctx); /** * Walk/visit each of the interface pairs */ extern void lcp_itf_pair_walk (lcp_itf_pair_walk_cb_t cb, void *ctx); /** * Begin and End the replace process */ extern int lcp_itf_pair_replace_begin (void); extern int lcp_itf_pair_replace_end (void); /** * Retreive the pair in the DP */ extern index_t *lip_db_by_phy; extern u32 *lip_db_by_host; always_inline index_t lcp_itf_pair_find_by_phy (u32 phy_sw_if_index) { if (phy_sw_if_index >= vec_len (lip_db_by_phy)) return INDEX_INVALID; return (lip_db_by_phy[phy_sw_if_index]); } always_inline index_t lcp_itf_pair_find_by_host (u32 host_sw_if_index) { if (host_sw_if_index >= vec_len (lip_db_by_host)) return INDEX_INVALID; return (lip_db_by_host[host_sw_if_index]); } typedef void (*lcp_itf_pair_add_cb_t) (lcp_itf_pair_t *); typedef void (*lcp_itf_pair_del_cb_t) (lcp_itf_pair_t *); typedef struct lcp_itf_pair_vft { lcp_itf_pair_add_cb_t pair_add_fn; lcp_itf_pair_del_cb_t pair_del_fn; } lcp_itf_pair_vft_t; void lcp_itf_pair_register_vft (lcp_itf_pair_vft_t *lcp_itf_vft); /** * sub-interface auto creation/deletion for LCP */ void lcp_set_auto_subint (u8 is_auto); int lcp_auto_subint (void); /** * sync state changes from VPP into LCP */ void lcp_set_sync (u8 is_auto); int lcp_sync (void); /* Set TAP and Linux host link state */ void lcp_itf_set_link_state (const lcp_itf_pair_t *lip, u8 state); /* Set any VPP L3 addresses on Linux host device */ void lcp_itf_set_interface_ad