1*f5baf8bbSAlexander V. Chernikov /*- 2*f5baf8bbSAlexander V. Chernikov * Copyright (c) 2020 3*f5baf8bbSAlexander V. Chernikov * Alexander V. Chernikov <melifaro@FreeBSD.org> 4*f5baf8bbSAlexander V. Chernikov * 5*f5baf8bbSAlexander V. Chernikov * Redistribution and use in source and binary forms, with or without 6*f5baf8bbSAlexander V. Chernikov * modification, are permitted provided that the following conditions 7*f5baf8bbSAlexander V. Chernikov * are met: 8*f5baf8bbSAlexander V. Chernikov * 1. Redistributions of source code must retain the above copyright 9*f5baf8bbSAlexander V. Chernikov * notice, this list of conditions and the following disclaimer. 10*f5baf8bbSAlexander V. Chernikov * 2. Redistributions in binary form must reproduce the above copyright 11*f5baf8bbSAlexander V. Chernikov * notice, this list of conditions and the following disclaimer in the 12*f5baf8bbSAlexander V. Chernikov * documentation and/or other materials provided with the distribution. 13*f5baf8bbSAlexander V. Chernikov * 3. Neither the name of the University nor the names of its contributors 14*f5baf8bbSAlexander V. Chernikov * may be used to endorse or promote products derived from this software 15*f5baf8bbSAlexander V. Chernikov * without specific prior written permission. 16*f5baf8bbSAlexander V. Chernikov * 17*f5baf8bbSAlexander V. Chernikov * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18*f5baf8bbSAlexander V. Chernikov * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19*f5baf8bbSAlexander V. Chernikov * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20*f5baf8bbSAlexander V. Chernikov * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21*f5baf8bbSAlexander V. Chernikov * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22*f5baf8bbSAlexander V. Chernikov * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23*f5baf8bbSAlexander V. Chernikov * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24*f5baf8bbSAlexander V. Chernikov * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25*f5baf8bbSAlexander V. Chernikov * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26*f5baf8bbSAlexander V. Chernikov * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27*f5baf8bbSAlexander V. Chernikov * SUCH DAMAGE. 28*f5baf8bbSAlexander V. Chernikov * 29*f5baf8bbSAlexander V. Chernikov * $FreeBSD$ 30*f5baf8bbSAlexander V. Chernikov */ 31*f5baf8bbSAlexander V. Chernikov 32*f5baf8bbSAlexander V. Chernikov 33*f5baf8bbSAlexander V. Chernikov struct fib_data; 34*f5baf8bbSAlexander V. Chernikov struct fib_dp; 35*f5baf8bbSAlexander V. Chernikov enum flm_op_result { 36*f5baf8bbSAlexander V. Chernikov FLM_SUCCESS, /* No errors, operation successful */ 37*f5baf8bbSAlexander V. Chernikov FLM_REBUILD, /* Operation cannot be completed, schedule algorithm rebuild */ 38*f5baf8bbSAlexander V. Chernikov FLM_ERROR, /* Operation failed, this algo cannot be used */ 39*f5baf8bbSAlexander V. Chernikov }; 40*f5baf8bbSAlexander V. Chernikov 41*f5baf8bbSAlexander V. Chernikov struct rib_rtable_info { 42*f5baf8bbSAlexander V. Chernikov uint32_t num_prefixes; 43*f5baf8bbSAlexander V. Chernikov uint32_t num_nhops; 44*f5baf8bbSAlexander V. Chernikov uint32_t num_nhgrp; 45*f5baf8bbSAlexander V. Chernikov }; 46*f5baf8bbSAlexander V. Chernikov 47*f5baf8bbSAlexander V. Chernikov struct flm_lookup_key { 48*f5baf8bbSAlexander V. Chernikov union { 49*f5baf8bbSAlexander V. Chernikov const struct in6_addr *addr6; 50*f5baf8bbSAlexander V. Chernikov struct in_addr addr4; 51*f5baf8bbSAlexander V. Chernikov }; 52*f5baf8bbSAlexander V. Chernikov }; 53*f5baf8bbSAlexander V. Chernikov 54*f5baf8bbSAlexander V. Chernikov typedef struct nhop_object *flm_lookup_t(void *algo_data, 55*f5baf8bbSAlexander V. Chernikov const struct flm_lookup_key key, uint32_t scopeid); 56*f5baf8bbSAlexander V. Chernikov typedef enum flm_op_result flm_init_t (uint32_t fibnum, struct fib_data *fd, 57*f5baf8bbSAlexander V. Chernikov void *_old_data, void **new_data); 58*f5baf8bbSAlexander V. Chernikov typedef void flm_destroy_t(void *data); 59*f5baf8bbSAlexander V. Chernikov typedef enum flm_op_result flm_dump_t(struct rtentry *rt, void *data); 60*f5baf8bbSAlexander V. Chernikov typedef enum flm_op_result flm_dump_end_t(void *data, struct fib_dp *dp); 61*f5baf8bbSAlexander V. Chernikov typedef enum flm_op_result flm_change_t(struct rib_head *rnh, 62*f5baf8bbSAlexander V. Chernikov struct rib_cmd_info *rc, void *data); 63*f5baf8bbSAlexander V. Chernikov typedef uint8_t flm_get_pref_t(const struct rib_rtable_info *rinfo); 64*f5baf8bbSAlexander V. Chernikov 65*f5baf8bbSAlexander V. Chernikov struct fib_lookup_module { 66*f5baf8bbSAlexander V. Chernikov char *flm_name; /* algo name */ 67*f5baf8bbSAlexander V. Chernikov int flm_family; /* address family this module supports */ 68*f5baf8bbSAlexander V. Chernikov int flm_refcount; /* # of references */ 69*f5baf8bbSAlexander V. Chernikov uint32_t flm_flags; /* flags */ 70*f5baf8bbSAlexander V. Chernikov uint8_t flm_index; /* internal algo index */ 71*f5baf8bbSAlexander V. Chernikov flm_init_t *flm_init_cb; /* instance init */ 72*f5baf8bbSAlexander V. Chernikov flm_destroy_t *flm_destroy_cb; /* destroy instance */ 73*f5baf8bbSAlexander V. Chernikov flm_change_t *flm_change_rib_item_cb;/* routing table change hook */ 74*f5baf8bbSAlexander V. Chernikov flm_dump_t *flm_dump_rib_item_cb; /* routing table dump cb */ 75*f5baf8bbSAlexander V. Chernikov flm_dump_end_t *flm_dump_end_cb; /* end of dump */ 76*f5baf8bbSAlexander V. Chernikov flm_lookup_t *flm_lookup; /* lookup function */ 77*f5baf8bbSAlexander V. Chernikov flm_get_pref_t *flm_get_pref; /* get algo preference */ 78*f5baf8bbSAlexander V. Chernikov TAILQ_ENTRY(fib_lookup_module) entries; 79*f5baf8bbSAlexander V. Chernikov }; 80*f5baf8bbSAlexander V. Chernikov 81*f5baf8bbSAlexander V. Chernikov /* Datapath lookup data */ 82*f5baf8bbSAlexander V. Chernikov struct fib_dp { 83*f5baf8bbSAlexander V. Chernikov flm_lookup_t *f; 84*f5baf8bbSAlexander V. Chernikov void *arg; 85*f5baf8bbSAlexander V. Chernikov }; 86*f5baf8bbSAlexander V. Chernikov 87*f5baf8bbSAlexander V. Chernikov VNET_DECLARE(struct fib_dp *, inet_dp); 88*f5baf8bbSAlexander V. Chernikov #define V_inet_dp VNET(inet_dp) 89*f5baf8bbSAlexander V. Chernikov VNET_DECLARE(struct fib_dp *, inet6_dp); 90*f5baf8bbSAlexander V. Chernikov #define V_inet6_dp VNET(inet6_dp) 91*f5baf8bbSAlexander V. Chernikov 92*f5baf8bbSAlexander V. Chernikov #define FIB_PRINTF(_l, _fd, _fmt, ...) fib_printf(_l, _fd, __func__, _fmt, ##__VA_ARGS__) 93*f5baf8bbSAlexander V. Chernikov 94*f5baf8bbSAlexander V. Chernikov void fib_printf(int level, struct fib_data *fd, const char *func, char *fmt, ...); 95*f5baf8bbSAlexander V. Chernikov int fib_module_init(struct fib_lookup_module *flm, uint32_t fibnum, 96*f5baf8bbSAlexander V. Chernikov int family); 97*f5baf8bbSAlexander V. Chernikov int fib_module_clone(const struct fib_lookup_module *flm_orig, 98*f5baf8bbSAlexander V. Chernikov struct fib_lookup_module *flm, bool waitok); 99*f5baf8bbSAlexander V. Chernikov int fib_module_dumptree(struct fib_lookup_module *flm, 100*f5baf8bbSAlexander V. Chernikov enum rib_subscription_type subscription_type); 101*f5baf8bbSAlexander V. Chernikov int fib_module_register(struct fib_lookup_module *flm); 102*f5baf8bbSAlexander V. Chernikov int fib_module_unregister(struct fib_lookup_module *flm); 103*f5baf8bbSAlexander V. Chernikov 104*f5baf8bbSAlexander V. Chernikov uint32_t fib_get_nhop_idx(struct fib_data *fd, struct nhop_object *nh); 105*f5baf8bbSAlexander V. Chernikov struct nhop_object **fib_get_nhop_array(struct fib_data *fd); 106*f5baf8bbSAlexander V. Chernikov void fib_get_rtable_info(struct rib_head *rh, struct rib_rtable_info *rinfo); 107*f5baf8bbSAlexander V. Chernikov struct rib_head *fib_get_rh(struct fib_data *fd); 108*f5baf8bbSAlexander V. Chernikov 109*f5baf8bbSAlexander V. Chernikov 110