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, 2008 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 _LDPE_H_ | |
| 22 | #define _LDPE_H_ | |
| 23 | ||
| 24 | #include <sys/types.h> | |
| 25 | #include <sys/queue.h> | |
| 26 | #include <sys/tree.h> | |
| 27 | #include <net/pfkeyv2.h> | |
| 28 | ||
| 29 | #include "ldpd.h" | |
| 30 | ||
| 31 | #define min(x,y) ((x) <= (y) ? (x) : (y)) | |
| 32 | #define max(x,y) ((x) > (y) ? (x) : (y)) | |
| 33 | ||
| 34 | struct hello_source { | |
| 35 | enum hello_type type; | |
| 36 | struct { | |
| 37 | struct iface_af *ia; | |
| 38 | union ldpd_addr src_addr; | |
| 39 | } link; | |
| 40 | struct tnbr *target; | |
| 41 | }; | |
| 42 | ||
| 43 | struct adj { | |
| 44 | LIST_ENTRY(adj) global_entry; | |
| 45 | LIST_ENTRY(adj) nbr_entry; | |
| 46 | LIST_ENTRY(adj) ia_entry; | |
| 47 | struct in_addr lsr_id; | |
| 48 | struct nbr *nbr; | |
| 49 | int ds_tlv; | |
| 50 | struct hello_source source; | |
| 51 | struct event inactivity_timer; | |
| 52 | uint16_t holdtime; | |
| 53 | union ldpd_addr trans_addr; | |
| 54 | }; | |
| 55 | ||
| 56 | struct tcp_conn { | |
| 57 | struct nbr *nbr; | |
| 58 | int fd; | |
| 59 | struct ibuf_read *rbuf; | |
| 60 | struct evbuf wbuf; | |
| 61 | struct event rev; | |
| 62 | }; | |
| 63 | ||
| 64 | struct nbr { | |
| 65 | RB_ENTRY(nbr) id_tree, addr_tree, pid_tree; | |
| 66 | struct tcp_conn *tcp; | |
| 67 | LIST_HEAD(, adj) adj_list; /* adjacencies */ | |
| 68 | struct event ev_connect; | |
| 69 | struct event keepalive_timer; | |
| 70 | struct event keepalive_timeout; | |
| 71 | struct event init_timeout; | |
| 72 | struct event initdelay_timer; | |
| 73 | ||
| 74 | struct mapping_head mapping_list; | |
| 75 | struct mapping_head withdraw_list; | |
| 76 | struct mapping_head request_list; | |
| 77 | struct mapping_head release_list; | |
| 78 | struct mapping_head abortreq_list; | |
| 79 | ||
| 80 | uint32_t peerid; /* unique ID in DB */ | |
| 81 | int af; | |
| 82 | int ds_tlv; | |
| 83 | int v4_enabled; /* announce/process v4 msgs */ | |
| 84 | int v6_enabled; /* announce/process v6 msgs */ | |
| 85 | struct in_addr id; /* lsr id */ | |
| 86 | union ldpd_addr laddr; /* local address */ | |
| 87 | union ldpd_addr raddr; /* remote address */ | |
| 88 | uint32_t raddr_scope; /* remote address scope (v6) */ | |
| 89 | time_t uptime; | |
| 90 | int fd; | |
| 91 | int state; | |
| 92 | uint32_t conf_seqnum; | |
| 93 | int idtimer_cnt; | |
| 94 | uint16_t keepalive; | |
| 95 | uint16_t max_pdu_len; | |
| 96 | ||
| 97 | struct { | |
| 98 | uint8_t established; | |
| 99 | uint32_t spi_in; | |
| 100 | uint32_t spi_out; | |
| 101 | enum auth_method method; | |
| 102 | char md5key[TCP_MD5_KEY_LEN]; | |
| 103 | } auth; | |
| 104 | int flags; | |
| 105 | }; | |
| 106 | #define F_NBR_GTSM_NEGOTIATED 0x01 | |
| 107 | ||
| 108 | RB_HEAD(nbr_id_head, nbr); | |
| 109 | RB_PROTOTYPE(nbr_id_head, nbr, id_tree, nbr_id_compare) | |
| 110 | RB_HEAD(nbr_addr_head, nbr); | |
| 111 | RB_PROTOTYPE(nbr_addr_head, nbr, addr_tree, nbr_addr_compare) | |
| 112 | RB_HEAD(nbr_pid_head, nbr); | |
| 113 | RB_PROTOTYPE(nbr_pid_head, nbr, pid_tree, nbr_pid_compare) | |
| 114 | ||
| 115 | struct pending_conn { | |
| 116 | TAILQ_ENTRY(pending_conn) entry; | |
| 117 | int fd; | |
| 118 | int af; | |
| 119 | union ldpd_addr addr; | |
| 120 | struct event ev_timeout; | |
| 121 | }; | |
| 122 | #define PENDING_CONN_TIMEOUT 5 | |
| 123 | ||
| 124 | struct mapping_entry { | |
| 125 | TAILQ_ENTRY(mapping_entry) entry; | |
| 126 | struct map map; | |
| 127 | }; | |
| 128 | ||
| 129 | struct ldpd_sysdep { | |
| 130 | uint8_t no_pfkey; | |
| 131 | uint8_t no_md5sig; | |
| 132 | }; | |
| 133 | ||
| 134 | extern struct ldpd_conf *leconf; | |
| 135 | extern struct ldpd_sysdep sysdep; | |
| 136 | extern struct nbr_id_head nbrs_by_id; | |
| 137 | extern struct nbr_addr_head nbrs_by_addr; | |
| 138 | extern struct nbr_pid_head nbrs_by_pid; | |
| 139 | ||
| 140 | /* accept.c */ | |
| 141 | void accept_init(void); | |
| 142 | int accept_add(int, void (*)(int, short, void *), void *); | |
| 143 | void accept_del(int); | |
| 144 | void accept_pause(void); | |
| 145 | void accept_unpause(void); | |
| 146 | ||
| 147 | /* hello.c */ | |
| 148 | int send_hello(enum hello_type, struct iface_af *, struct tnbr *); | |
| 149 | void recv_hello(struct in_addr, struct ldp_msg *, int, union ldpd_addr *, | |
| 150 | struct iface *, int, char *, uint16_t); | |
| 151 | ||
| 152 | /* init.c */ | |
| 153 | void send_init(struct nbr *); | |
| 154 | int recv_init(struct nbr *, char *, uint16_t); | |
| 155 | ||
| 156 | /* keepalive.c */ | |
| 157 | void send_keepalive(struct nbr *); | |
| 158 | int recv_keepalive(struct nbr *, char *, uint16_t); | |
| 159 | ||
| 160 | /* notification.c */ | |
| 161 | void send_notification_full(struct tcp_conn *, struct notify_msg *); | |
| 162 | void send_notification(uint32_t, struct tcp_conn *, uint32_t, | |
| 163 | uint16_t); | |
| 164 | void send_notification_nbr(struct nbr *, uint32_t, uint32_t, uint16_t); | |
| 165 | int recv_notification(struct nbr *, char *, uint16_t); | |
| 166 | int gen_status_tlv(struct ibuf *, uint32_t, uint32_t, uint16_t); | |
| 167 | ||
| 168 | /* address.c */ | |
| 169 | void send_address_single(struct nbr *, struct if_addr *, int); | |
| 170 | void send_address_all(struct nbr *, int); | |
| 171 | int recv_address(struct nbr *, char *, uint16_t); | |
| 172 | ||
| 173 | /* labelmapping.c */ | |
| 174 | #define PREFIX_SIZE(x) (((x) + 7) / 8) | |
| 175 | void send_labelmessage(struct nbr *, uint16_t, struct mapping_head *); | |
| 176 | int recv_labelmessage(struct nbr *, char *, uint16_t, uint16_t); | |
| 177 | int gen_pw_status_tlv(struct ibuf *, uint32_t); | |
| 178 | int gen_fec_tlv(struct ibuf *, struct map *); | |
| 179 | int tlv_decode_fec_elm(struct nbr *, struct ldp_msg *, char *, | |
| 180 | uint16_t, struct map *); | |
| 181 | ||
| 182 | /* ldpe.c */ | |
| 183 | void ldpe(int, int); | |
| 184 | int ldpe_imsg_compose_parent(int, pid_t, void *, | |
| 185 | uint16_t); | |
| 186 | int ldpe_imsg_compose_lde(int, uint32_t, pid_t, void *, | |
| 187 | uint16_t); | |
| 188 | void ldpe_reset_nbrs(int); | |
| 189 | void ldpe_reset_ds_nbrs(void); | |
| 190 | void ldpe_remove_dynamic_tnbrs(int); | |
| 191 | void ldpe_stop_init_backoff(int); | |
| 192 | struct ctl_conn; | |
| 193 | void ldpe_iface_ctl(struct ctl_conn *, unsigned int); | |
| 194 | void ldpe_adj_ctl(struct ctl_conn *); | |
| 195 | void ldpe_nbr_ctl(struct ctl_conn *); | |
| 196 | void mapping_list_add(struct mapping_head *, struct map *); | |
| 197 | void mapping_list_clr(struct mapping_head *); | |
| 198 | ||
| 199 | /* interface.c */ | |
| 200 | struct iface *if_new(struct kif *); | |
| 201 | void if_exit(struct iface *); | |
| 202 | struct iface *if_lookup(struct ldpd_conf *, unsigned short); | |
| 203 | struct iface_af *iface_af_get(struct iface *, int); | |
| 204 | void if_addr_add(struct kaddr *); | |
| 205 | void if_addr_del(struct kaddr *); | |
| 206 | void if_update(struct iface *, int); | |
| 207 | void if_update_all(int); | |
| 208 | struct ctl_iface *if_to_ctl(struct iface_af *); | |
| 209 | in_addr_t if_get_ipv4_addr(struct iface *); | |
| 210 | ||
| 211 | /* adjacency.c */ | |
| 212 | struct adj *adj_new(struct in_addr, struct hello_source *, | |
| 213 | union ldpd_addr *); | |
| 214 | void adj_del(struct adj *, uint32_t); | |
| 215 | struct adj *adj_find(struct hello_source *); | |
| 216 | int adj_get_af(struct adj *adj); | |
| 217 | void adj_start_itimer(struct adj *); | |
| 218 | void adj_stop_itimer(struct adj *); | |
| 219 | struct tnbr *tnbr_new(struct ldpd_conf *, int, union ldpd_addr *); | |
| 220 | struct tnbr *tnbr_find(struct ldpd_conf *, int, union ldpd_addr *); | |
| 221 | struct tnbr *tnbr_check(struct tnbr *); | |
| 222 | void tnbr_update(struct tnbr *); | |
| 223 | void tnbr_update_all(int); | |
| 224 | struct ctl_adj *adj_to_ctl(struct adj *); | |
| 225 | ||
| 226 | /* neighbor.c */ | |
| 227 | int nbr_fsm(struct nbr *, enum nbr_event); | |
| 228 | struct nbr *nbr_new(struct in_addr, int, int, union ldpd_addr *, | |
| 229 | uint32_t); | |
| 230 | void nbr_del(struct nbr *); | |
| 231 | struct nbr *nbr_find_ldpid(uint32_t); | |
| 232 | struct nbr *nbr_find_addr(int, union ldpd_addr *); | |
| 233 | struct nbr *nbr_find_peerid(uint32_t); | |
| 234 | int nbr_adj_count(struct nbr *, int); | |
| 235 | int nbr_session_active_role(struct nbr *); | |
| 236 | void nbr_stop_ktimer(struct nbr *); | |
| 237 | void nbr_stop_ktimeout(struct nbr *); | |
| 238 | void nbr_stop_itimeout(struct nbr *); | |
| 239 | void nbr_start_idtimer(struct nbr *); | |
| 240 | void nbr_stop_idtimer(struct nbr *); | |
| 241 | int nbr_pending_idtimer(struct nbr *); | |
| 242 | int nbr_pending_connect(struct nbr *); | |
| 243 | int nbr_establish_connection(struct nbr *); | |
| 244 | int nbr_gtsm_enabled(struct nbr *, struct nbr_params *); | |
| 245 | int nbr_gtsm_setup(int, int, struct nbr_params *); | |
| 246 | int nbr_gtsm_check(int, struct nbr *, struct nbr_params *); | |
| 247 | struct nbr_params *nbr_params_new(struct in_addr); | |
| 248 | struct nbr_params *nbr_params_find(struct ldpd_conf *, struct in_addr); | |
| 249 | uint16_t nbr_get_keepalive(int, struct in_addr); | |
| 250 | struct ctl_nbr *nbr_to_ctl(struct nbr *); | |
| 251 | void nbr_clear_ctl(struct ctl_nbr *); | |
| 252 | ||
| 253 | /* packet.c */ | |
| 254 | int gen_ldp_hdr(struct ibuf *, uint16_t); | |
| 255 | int gen_msg_hdr(struct ibuf *, uint16_t, uint16_t); | |
| 256 | int send_packet(int, int, union ldpd_addr *, | |
| 257 | struct iface_af *, void *, size_t); | |
| 258 | void disc_recv_packet(int, short, void *); | |
| 259 | void session_accept(int, short, void *); | |
| 260 | void session_accept_nbr(struct nbr *, int); | |
| 261 | void session_shutdown(struct nbr *, uint32_t, uint32_t, | |
| 262 | uint32_t); | |
| 263 | void session_close(struct nbr *); | |
| 264 | struct tcp_conn *tcp_new(int, struct nbr *); | |
| 265 | void pending_conn_del(struct pending_conn *); | |
| 266 | struct pending_conn *pending_conn_find(int, union ldpd_addr *); | |
| 267 | ||
| 268 | char *pkt_ptr; /* packet buffer */ | |
| 269 | ||
| 270 | /* pfkey.c */ | |
| 271 | int pfkey_read(int, struct sadb_msg *); | |
| 272 | int pfkey_establish(struct nbr *, struct nbr_params *); | |
| 273 | int pfkey_remove(struct nbr *); | |
| 274 | int pfkey_init(void); | |
| 275 | ||
| 276 | /* l2vpn.c */ | |
| 277 | void ldpe_l2vpn_init(struct l2vpn *); | |
| 278 | void ldpe_l2vpn_exit(struct l2vpn *); | |
| 279 | void ldpe_l2vpn_pw_init(struct l2vpn_pw *); | |
| 280 | void ldpe_l2vpn_pw_exit(struct l2vpn_pw *); | |
| 281 | ||
| 282 | #endif /* _LDPE_H_ */ |