projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| 8429abe0 RW |
1 | /* $OpenBSD$ */ |
| 2 | ||
| 3 | /* | |
| 4 | * Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org> | |
| 5 | * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org> | |
| 6 | * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org> | |
| 7 | * | |
| 8 | * Permission to use, copy, modify, and distribute this software for any | |
| 9 | * purpose with or without fee is hereby granted, provided that the above | |
| 10 | * copyright notice and this permission notice appear in all copies. | |
| 11 | * | |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 13 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 14 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 15 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 16 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 17 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 18 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef _LDE_H_ | |
| 22 | #define _LDE_H_ | |
| 23 | ||
| 24 | #include <sys/types.h> | |
| 25 | #include <sys/queue.h> | |
| 26 | #include <sys/tree.h> | |
| 27 | ||
| 28 | enum fec_type { | |
| 29 | FEC_TYPE_IPV4, | |
| 30 | FEC_TYPE_IPV6, | |
| 31 | FEC_TYPE_PWID | |
| 32 | }; | |
| 33 | ||
| 34 | struct fec { | |
| 35 | RB_ENTRY(fec) entry; | |
| 36 | enum fec_type type; | |
| 37 | union { | |
| 38 | struct { | |
| 39 | struct in_addr prefix; | |
| 40 | uint8_t prefixlen; | |
| 41 | } ipv4; | |
| 42 | struct { | |
| 43 | struct in6_addr prefix; | |
| 44 | uint8_t prefixlen; | |
| 45 | } ipv6; | |
| 46 | struct { | |
| 47 | uint16_t type; | |
| 48 | uint32_t pwid; | |
| 49 | struct in_addr lsr_id; | |
| 50 | } pwid; | |
| 51 | } u; | |
| 52 | }; | |
| 53 | RB_HEAD(fec_tree, fec); | |
| 54 | RB_PROTOTYPE(fec_tree, fec, entry, fec_compare) | |
| 55 | ||
| 56 | /* request entries */ | |
| 57 | struct lde_req { | |
| 58 | struct fec fec; | |
| 59 | uint32_t msg_id; | |
| 60 | }; | |
| 61 | ||
| 62 | /* mapping entries */ | |
| 63 | struct lde_map { | |
| 64 | struct fec fec; | |
| 65 | LIST_ENTRY(lde_map) entry; | |
| 66 | struct lde_nbr *nexthop; | |
| 67 | struct map map; | |
| 68 | }; | |
| 69 | ||
| 70 | /* withdraw entries */ | |
| 71 | struct lde_wdraw { | |
| 72 | struct fec fec; | |
| 73 | uint32_t label; | |
| 74 | }; | |
| 75 | ||
| 76 | /* Addresses belonging to neighbor */ | |
| 77 | struct lde_addr { | |
| 78 | TAILQ_ENTRY(lde_addr) entry; | |
| 79 | int af; | |
| 80 | union ldpd_addr addr; | |
| 81 | }; | |
| 82 | ||
| 83 | /* just the info LDE needs */ | |
| 84 | struct lde_nbr { | |
| 85 | RB_ENTRY(lde_nbr) entry; | |
| 86 | uint32_t peerid; | |
| 87 | struct in_addr id; | |
| 88 | int v4_enabled; /* announce/process v4 msgs */ | |
| 89 | int v6_enabled; /* announce/process v6 msgs */ | |
| 90 | struct fec_tree recv_req; | |
| 91 | struct fec_tree sent_req; | |
| 92 | struct fec_tree recv_map; | |
| 93 | struct fec_tree sent_map; | |
| 94 | struct fec_tree sent_wdraw; | |
| 95 | TAILQ_HEAD(, lde_addr) addr_list; | |
| 96 | }; | |
| 97 | RB_HEAD(nbr_tree, lde_nbr); | |
| 98 | RB_PROTOTYPE(nbr_tree, lde_nbr, entry, lde_nbr_compare) | |
| 99 | ||
| 100 | struct fec_nh { | |
| 101 | LIST_ENTRY(fec_nh) entry; | |
| 102 | int af; | |
| 103 | union ldpd_addr nexthop; | |
| 104 | uint32_t remote_label; | |
| 105 | uint8_t priority; | |
| 106 | }; | |
| 107 | ||
| 108 | struct fec_node { | |
| 109 | struct fec fec; | |
| 110 | ||
| 111 | LIST_HEAD(, fec_nh) nexthops; /* fib nexthops */ | |
| 112 | LIST_HEAD(, lde_map) downstream; /* recv mappings */ | |
| 113 | LIST_HEAD(, lde_map) upstream; /* sent mappings */ | |
| 114 | ||
| 115 | uint32_t local_label; | |
| 116 | void *data; /* fec specific data */ | |
| 117 | }; | |
| 118 | ||
| 119 | #define LDE_GC_INTERVAL 300 | |
| 120 | ||
| 121 | extern struct ldpd_conf *ldeconf; | |
| 122 | extern struct fec_tree ft; | |
| 123 | extern struct nbr_tree lde_nbrs; | |
| 124 | extern struct event gc_timer; | |
| 125 | ||
| 126 | /* lde.c */ | |
| 127 | void lde(int, int); | |
| 128 | int lde_imsg_compose_ldpe(int, uint32_t, pid_t, void *, uint16_t); | |
| 129 | uint32_t lde_assign_label(void); | |
| 130 | void lde_send_change_klabel(struct fec_node *, struct fec_nh *); | |
| 131 | void lde_send_delete_klabel(struct fec_node *, struct fec_nh *); | |
| 132 | void lde_fec2map(struct fec *, struct map *); | |
| 133 | void lde_map2fec(struct map *, struct in_addr, struct fec *); | |
| 134 | void lde_send_labelmapping(struct lde_nbr *, struct fec_node *, | |
| 135 | int); | |
| 136 | void lde_send_labelwithdraw(struct lde_nbr *, struct fec_node *, | |
| 137 | uint32_t, struct status_tlv *); | |
| 138 | void lde_send_labelwithdraw_all(struct fec_node *, uint32_t); | |
| 139 | void lde_send_labelrelease(struct lde_nbr *, struct fec_node *, | |
| 140 | uint32_t); | |
| 141 | void lde_send_notification(uint32_t, uint32_t, uint32_t, uint16_t); | |
| 142 | struct lde_nbr *lde_nbr_find_by_lsrid(struct in_addr); | |
| 143 | struct lde_nbr *lde_nbr_find_by_addr(int, union ldpd_addr *); | |
| 144 | struct lde_map *lde_map_add(struct lde_nbr *, struct fec_node *, int); | |
| 145 | void lde_map_del(struct lde_nbr *, struct lde_map *, int); | |
| 146 | struct lde_req *lde_req_add(struct lde_nbr *, struct fec *, int); | |
| 147 | void lde_req_del(struct lde_nbr *, struct lde_req *, int); | |
| 148 | struct lde_wdraw *lde_wdraw_add(struct lde_nbr *, struct fec_node *); | |
| 149 | void lde_wdraw_del(struct lde_nbr *, struct lde_wdraw *); | |
| 150 | void lde_change_egress_label(int, int); | |
| 151 | struct lde_addr *lde_address_find(struct lde_nbr *, int, | |
| 152 | union ldpd_addr *); | |
| 153 | ||
| 154 | /* lde_lib.c */ | |
| 155 | void fec_init(struct fec_tree *); | |
| 156 | struct fec *fec_find(struct fec_tree *, struct fec *); | |
| 157 | int fec_insert(struct fec_tree *, struct fec *); | |
| 158 | int fec_remove(struct fec_tree *, struct fec *); | |
| 159 | void fec_clear(struct fec_tree *, void (*)(void *)); | |
| 160 | void rt_dump(pid_t); | |
| 161 | void fec_snap(struct lde_nbr *); | |
| 162 | void fec_tree_clear(void); | |
| 163 | struct fec_nh *fec_nh_find(struct fec_node *, int, union ldpd_addr *, | |
| 164 | uint8_t); | |
| 165 | uint32_t egress_label(enum fec_type); | |
| 166 | void lde_kernel_insert(struct fec *, int, union ldpd_addr *, | |
| 167 | uint8_t, int, void *); | |
| 168 | void lde_kernel_remove(struct fec *, int, union ldpd_addr *, | |
| 169 | uint8_t); | |
| 170 | void lde_check_mapping(struct map *, struct lde_nbr *); | |
| 171 | void lde_check_request(struct map *, struct lde_nbr *); | |
| 172 | void lde_check_release(struct map *, struct lde_nbr *); | |
| 173 | void lde_check_release_wcard(struct map *, struct lde_nbr *); | |
| 174 | void lde_check_withdraw(struct map *, struct lde_nbr *); | |
| 175 | void lde_check_withdraw_wcard(struct map *, struct lde_nbr *); | |
| 176 | void lde_gc_timer(int, short, void *); | |
| 177 | void lde_gc_start_timer(void); | |
| 178 | void lde_gc_stop_timer(void); | |
| 179 | ||
| 180 | /* l2vpn.c */ | |
| 181 | struct l2vpn *l2vpn_new(const char *); | |
| 182 | struct l2vpn *l2vpn_find(struct ldpd_conf *, const char *); | |
| 183 | void l2vpn_del(struct l2vpn *); | |
| 184 | void l2vpn_init(struct l2vpn *); | |
| 185 | void l2vpn_exit(struct l2vpn *); | |
| 186 | struct l2vpn_if *l2vpn_if_new(struct l2vpn *, struct kif *); | |
| 187 | struct l2vpn_if *l2vpn_if_find(struct l2vpn *, unsigned int); | |
| 188 | struct l2vpn_pw *l2vpn_pw_new(struct l2vpn *, struct kif *); | |
| 189 | struct l2vpn_pw *l2vpn_pw_find(struct l2vpn *, unsigned int); | |
| 190 | void l2vpn_pw_init(struct l2vpn_pw *); | |
| 191 | void l2vpn_pw_exit(struct l2vpn_pw *); | |
| 192 | void l2vpn_pw_reset(struct l2vpn_pw *); | |
| 193 | int l2vpn_pw_ok(struct l2vpn_pw *, struct fec_nh *); | |
| 194 | int l2vpn_pw_negotiate(struct lde_nbr *, struct fec_node *, | |
| 195 | struct map *); | |
| 196 | void l2vpn_send_pw_status(uint32_t, uint32_t, struct fec *); | |
| 197 | void l2vpn_recv_pw_status(struct lde_nbr *, struct notify_msg *); | |
| 198 | void l2vpn_sync_pws(int, union ldpd_addr *); | |
| 199 | void l2vpn_pw_ctl(pid_t); | |
| 200 | void l2vpn_binding_ctl(pid_t); | |
| 201 | ||
| 202 | #endif /* _LDE_H_ */ |