ldpd/ldpd.h

   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 Esben Norby <norby@openbsd.org>
   7  * Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
   8  *
   9  * Permission to use, copy, modify, and distribute this software for any
  10  * purpose with or without fee is hereby granted, provided that the above
  11  * copyright notice and this permission notice appear in all copies.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  14  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  15  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  16  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  17  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  18  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  19  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  20  */
  21
  22 #ifndef _LDPD_H_
  23 #define _LDPD_H_
  24
  25 #include "openbsd-queue.h"
  26 #include "openbsd-tree.h"
  27 #include "imsg.h"
  28 #include "thread.h"
  29 #include "qobj.h"
  30
  31 #include "ldp.h"
  32
  33 #define CONF_FILE               "/etc/ldpd.conf"
  34 #define LDPD_USER               "_ldpd"
  35
  36 #define LDPD_FD_ASYNC           3
  37 #define LDPD_FD_SYNC            4
  38
  39 #define LDPD_OPT_VERBOSE        0x00000001
  40 #define LDPD_OPT_VERBOSE2       0x00000002
  41 #define LDPD_OPT_NOACTION       0x00000004
  42
  43 #define TCP_MD5_KEY_LEN         80
  44 #define L2VPN_NAME_LEN          32
  45
  46 #define RT_BUF_SIZE             16384
  47 #define MAX_RTSOCK_BUF          128 * 1024
  48 #define LDP_BACKLOG             128
  49
  50 #define F_LDPD_INSERTED         0x0001
  51 #define F_CONNECTED             0x0002
  52 #define F_STATIC                0x0004
  53 #define F_DYNAMIC               0x0008
  54 #define F_REJECT                0x0010
  55 #define F_BLACKHOLE             0x0020
  56 #define F_REDISTRIBUTED         0x0040
  57
  58 struct evbuf {
  59         struct msgbuf            wbuf;
  60         struct thread           *ev;
  61         int                      (*handler)(struct thread *);
  62         void                    *arg;
  63 };
  64
  65 struct imsgev {
  66         struct imsgbuf           ibuf;
  67         int                     (*handler_write)(struct thread *);
  68         struct thread           *ev_write;
  69         int                     (*handler_read)(struct thread *);
  70         struct thread           *ev_read;
  71 };
  72
  73 enum imsg_type {
  74         IMSG_NONE,
  75         IMSG_CTL_RELOAD,
  76         IMSG_CTL_SHOW_INTERFACE,
  77         IMSG_CTL_SHOW_DISCOVERY,
  78         IMSG_CTL_SHOW_DISC_IFACE,
  79         IMSG_CTL_SHOW_DISC_TNBR,
  80         IMSG_CTL_SHOW_DISC_ADJ,
  81         IMSG_CTL_SHOW_NBR,
  82         IMSG_CTL_SHOW_NBR_DISC,
  83         IMSG_CTL_SHOW_NBR_END,
  84         IMSG_CTL_SHOW_LIB,
  85         IMSG_CTL_SHOW_L2VPN_PW,
  86         IMSG_CTL_SHOW_L2VPN_BINDING,
  87         IMSG_CTL_CLEAR_NBR,
  88         IMSG_CTL_FIB_COUPLE,
  89         IMSG_CTL_FIB_DECOUPLE,
  90         IMSG_CTL_KROUTE,
  91         IMSG_CTL_KROUTE_ADDR,
  92         IMSG_CTL_IFINFO,
  93         IMSG_CTL_END,
  94         IMSG_CTL_LOG_VERBOSE,
  95         IMSG_KLABEL_CHANGE,
  96         IMSG_KLABEL_DELETE,
  97         IMSG_KPWLABEL_CHANGE,
  98         IMSG_KPWLABEL_DELETE,
  99         IMSG_IFSTATUS,
 100         IMSG_NEWADDR,
 101         IMSG_DELADDR,
 102         IMSG_RTRID_UPDATE,
 103         IMSG_LABEL_MAPPING,
 104         IMSG_LABEL_MAPPING_FULL,
 105         IMSG_LABEL_REQUEST,
 106         IMSG_LABEL_RELEASE,
 107         IMSG_LABEL_WITHDRAW,
 108         IMSG_LABEL_ABORT,
 109         IMSG_REQUEST_ADD,
 110         IMSG_REQUEST_ADD_END,
 111         IMSG_MAPPING_ADD,
 112         IMSG_MAPPING_ADD_END,
 113         IMSG_RELEASE_ADD,
 114         IMSG_RELEASE_ADD_END,
 115         IMSG_WITHDRAW_ADD,
 116         IMSG_WITHDRAW_ADD_END,
 117         IMSG_ADDRESS_ADD,
 118         IMSG_ADDRESS_DEL,
 119         IMSG_NOTIFICATION,
 120         IMSG_NOTIFICATION_SEND,
 121         IMSG_NEIGHBOR_UP,
 122         IMSG_NEIGHBOR_DOWN,
 123         IMSG_NETWORK_ADD,
 124         IMSG_NETWORK_ADD_END,
 125         IMSG_NETWORK_DEL,
 126         IMSG_SOCKET_IPC,
 127         IMSG_SOCKET_NET,
 128         IMSG_CLOSE_SOCKETS,
 129         IMSG_REQUEST_SOCKETS,
 130         IMSG_SETUP_SOCKETS,
 131         IMSG_RECONF_CONF,
 132         IMSG_RECONF_IFACE,
 133         IMSG_RECONF_TNBR,
 134         IMSG_RECONF_NBRP,
 135         IMSG_RECONF_L2VPN,
 136         IMSG_RECONF_L2VPN_IF,
 137         IMSG_RECONF_L2VPN_PW,
 138         IMSG_RECONF_L2VPN_IPW,
 139         IMSG_RECONF_END,
 140         IMSG_DEBUG_UPDATE,
 141         IMSG_LOG
 142 };
 143
 144 union ldpd_addr {
 145         struct in_addr  v4;
 146         struct in6_addr v6;
 147 };
 148
 149 #define IN6_IS_SCOPE_EMBED(a)   \
 150         ((IN6_IS_ADDR_LINKLOCAL(a)) ||  \
 151          (IN6_IS_ADDR_MC_LINKLOCAL(a)) || \
 152          (IN6_IS_ADDR_MC_INTFACELOCAL(a)))
 153
 154 /* interface states */
 155 #define IF_STA_DOWN             0x01
 156 #define IF_STA_ACTIVE           0x02
 157
 158 /* targeted neighbor states */
 159 #define TNBR_STA_DOWN           0x01
 160 #define TNBR_STA_ACTIVE         0x02
 161
 162 /* interface types */
 163 enum iface_type {
 164         IF_TYPE_POINTOPOINT,
 165         IF_TYPE_BROADCAST
 166 };
 167
 168 /* neighbor states */
 169 #define NBR_STA_PRESENT         0x0001
 170 #define NBR_STA_INITIAL         0x0002
 171 #define NBR_STA_OPENREC         0x0004
 172 #define NBR_STA_OPENSENT        0x0008
 173 #define NBR_STA_OPER            0x0010
 174 #define NBR_STA_SESSION         (NBR_STA_INITIAL | NBR_STA_OPENREC | \
 175                                 NBR_STA_OPENSENT | NBR_STA_OPER)
 176
 177 /* neighbor events */
 178 enum nbr_event {
 179         NBR_EVT_NOTHING,
 180         NBR_EVT_MATCH_ADJ,
 181         NBR_EVT_CONNECT_UP,
 182         NBR_EVT_CLOSE_SESSION,
 183         NBR_EVT_INIT_RCVD,
 184         NBR_EVT_KEEPALIVE_RCVD,
 185         NBR_EVT_PDU_RCVD,
 186         NBR_EVT_PDU_SENT,
 187         NBR_EVT_INIT_SENT
 188 };
 189
 190 /* neighbor actions */
 191 enum nbr_action {
 192         NBR_ACT_NOTHING,
 193         NBR_ACT_RST_KTIMEOUT,
 194         NBR_ACT_SESSION_EST,
 195         NBR_ACT_RST_KTIMER,
 196         NBR_ACT_CONNECT_SETUP,
 197         NBR_ACT_PASSIVE_INIT,
 198         NBR_ACT_KEEPALIVE_SEND,
 199         NBR_ACT_CLOSE_SESSION
 200 };
 201
 202 /* forward declarations */
 203 RB_HEAD(global_adj_head, adj);
 204 RB_HEAD(nbr_adj_head, adj);
 205 RB_HEAD(ia_adj_head, adj);
 206
 207 struct map {
 208         uint8_t         type;
 209         uint32_t        msg_id;
 210         union {
 211                 struct {
 212                         uint16_t        af;
 213                         union ldpd_addr prefix;
 214                         uint8_t         prefixlen;
 215                 } prefix;
 216                 struct {
 217                         uint16_t        type;
 218                         uint32_t        pwid;
 219                         uint32_t        group_id;
 220                         uint16_t        ifmtu;
 221                 } pwid;
 222         } fec;
 223         struct {
 224                 uint32_t        status_code;
 225                 uint32_t        msg_id;
 226                 uint16_t        msg_type;
 227         } st;
 228         uint32_t        label;
 229         uint32_t        requestid;
 230         uint32_t        pw_status;
 231         uint8_t         flags;
 232 };
 233 #define F_MAP_REQ_ID    0x01    /* optional request message id present */
 234 #define F_MAP_STATUS    0x02    /* status */
 235 #define F_MAP_PW_CWORD  0x04    /* pseudowire control word */
 236 #define F_MAP_PW_ID     0x08    /* pseudowire connection id */
 237 #define F_MAP_PW_IFMTU  0x10    /* pseudowire interface parameter */
 238 #define F_MAP_PW_STATUS 0x20    /* pseudowire status */
 239
 240 struct notify_msg {
 241         uint32_t        status_code;
 242         uint32_t        msg_id;         /* network byte order */
 243         uint16_t        msg_type;       /* network byte order */
 244         uint32_t        pw_status;
 245         struct map      fec;
 246         uint8_t         flags;
 247 };
 248 #define F_NOTIF_PW_STATUS       0x01    /* pseudowire status tlv present */
 249 #define F_NOTIF_FEC             0x02    /* fec tlv present */
 250
 251 struct if_addr {
 252         LIST_ENTRY(if_addr)      entry;
 253         int                      af;
 254         union ldpd_addr          addr;
 255         uint8_t                  prefixlen;
 256         union ldpd_addr          dstbrd;
 257 };
 258 LIST_HEAD(if_addr_head, if_addr);
 259
 260 struct iface_af {
 261         struct iface            *iface;
 262         int                      af;
 263         int                      enabled;
 264         int                      state;
 265         struct ia_adj_head       adj_tree;
 266         time_t                   uptime;
 267         struct thread           *hello_timer;
 268         uint16_t                 hello_holdtime;
 269         uint16_t                 hello_interval;
 270 };
 271
 272 struct iface {
 273         RB_ENTRY(iface)          entry;
 274         char                     name[IF_NAMESIZE];
 275         unsigned int             ifindex;
 276         struct if_addr_head      addr_list;
 277         struct in6_addr          linklocal;
 278         enum iface_type          type;
 279         uint16_t                 flags;
 280         struct iface_af          ipv4;
 281         struct iface_af          ipv6;
 282         QOBJ_FIELDS
 283 };
 284 RB_HEAD(iface_head, iface);
 285 RB_PROTOTYPE(iface_head, iface, entry, iface_compare);
 286 DECLARE_QOBJ_TYPE(iface)
 287
 288 /* source of targeted hellos */
 289 struct tnbr {
 290         RB_ENTRY(tnbr)           entry;
 291         struct thread           *hello_timer;
 292         struct adj              *adj;
 293         int                      af;
 294         union ldpd_addr          addr;
 295         int                      state;
 296         uint16_t                 pw_count;
 297         uint8_t                  flags;
 298         QOBJ_FIELDS
 299 };
 300 RB_HEAD(tnbr_head, tnbr);
 301 RB_PROTOTYPE(tnbr_head, tnbr, entry, tnbr_compare);
 302 DECLARE_QOBJ_TYPE(tnbr)
 303 #define F_TNBR_CONFIGURED        0x01
 304 #define F_TNBR_DYNAMIC           0x02
 305
 306 enum auth_method {
 307         AUTH_NONE,
 308         AUTH_MD5SIG
 309 };
 310
 311 /* neighbor specific parameters */
 312 struct nbr_params {
 313         RB_ENTRY(nbr_params)     entry;
 314         struct in_addr           lsr_id;
 315         uint16_t                 keepalive;
 316         int                      gtsm_enabled;
 317         uint8_t                  gtsm_hops;
 318         struct {
 319                 enum auth_method         method;
 320                 char                     md5key[TCP_MD5_KEY_LEN];
 321                 uint8_t                  md5key_len;
 322         } auth;
 323         uint8_t                  flags;
 324         QOBJ_FIELDS
 325 };
 326 RB_HEAD(nbrp_head, nbr_params);
 327 RB_PROTOTYPE(nbrp_head, nbr_params, entry, nbr_params_compare);
 328 DECLARE_QOBJ_TYPE(nbr_params)
 329 #define F_NBRP_KEEPALIVE         0x01
 330 #define F_NBRP_GTSM              0x02
 331 #define F_NBRP_GTSM_HOPS         0x04
 332
 333 struct l2vpn_if {
 334         RB_ENTRY(l2vpn_if)       entry;
 335         struct l2vpn            *l2vpn;
 336         char                     ifname[IF_NAMESIZE];
 337         unsigned int             ifindex;
 338         uint16_t                 flags;
 339         QOBJ_FIELDS
 340 };
 341 RB_HEAD(l2vpn_if_head, l2vpn_if);
 342 RB_PROTOTYPE(l2vpn_if_head, l2vpn_if, entry, l2vpn_if_compare);
 343 DECLARE_QOBJ_TYPE(l2vpn_if)
 344
 345 struct l2vpn_pw {
 346         RB_ENTRY(l2vpn_pw)       entry;
 347         struct l2vpn            *l2vpn;
 348         struct in_addr           lsr_id;
 349         int                      af;
 350         union ldpd_addr          addr;
 351         uint32_t                 pwid;
 352         char                     ifname[IF_NAMESIZE];
 353         unsigned int             ifindex;
 354         uint32_t                 remote_group;
 355         uint16_t                 remote_mtu;
 356         uint32_t                 remote_status;
 357         uint8_t                  flags;
 358         QOBJ_FIELDS
 359 };
 360 RB_HEAD(l2vpn_pw_head, l2vpn_pw);
 361 RB_PROTOTYPE(l2vpn_pw_head, l2vpn_pw, entry, l2vpn_pw_compare);
 362 DECLARE_QOBJ_TYPE(l2vpn_pw)
 363 #define F_PW_STATUSTLV_CONF     0x01    /* status tlv configured */
 364 #define F_PW_STATUSTLV          0x02    /* status tlv negotiated */
 365 #define F_PW_CWORD_CONF         0x04    /* control word configured */
 366 #define F_PW_CWORD              0x08    /* control word negotiated */
 367 #define F_PW_STATUS_UP          0x10    /* pseudowire is operational */
 368 #define F_PW_STATIC_NBR_ADDR    0x20    /* static neighbor address configured */
 369
 370 struct l2vpn {
 371         RB_ENTRY(l2vpn)          entry;
 372         char                     name[L2VPN_NAME_LEN];
 373         int                      type;
 374         int                      pw_type;
 375         int                      mtu;
 376         char                     br_ifname[IF_NAMESIZE];
 377         unsigned int             br_ifindex;
 378         struct l2vpn_if_head     if_tree;
 379         struct l2vpn_pw_head     pw_tree;
 380         struct l2vpn_pw_head     pw_inactive_tree;
 381         QOBJ_FIELDS
 382 };
 383 RB_HEAD(l2vpn_head, l2vpn);
 384 RB_PROTOTYPE(l2vpn_head, l2vpn, entry, l2vpn_compare);
 385 DECLARE_QOBJ_TYPE(l2vpn)
 386 #define L2VPN_TYPE_VPWS         1
 387 #define L2VPN_TYPE_VPLS         2
 388
 389 /* ldp_conf */
 390 enum ldpd_process {
 391         PROC_MAIN,
 392         PROC_LDP_ENGINE,
 393         PROC_LDE_ENGINE
 394 } ldpd_process;
 395
 396 enum socket_type {
 397         LDP_SOCKET_DISC,
 398         LDP_SOCKET_EDISC,
 399         LDP_SOCKET_SESSION
 400 };
 401
 402 enum hello_type {
 403         HELLO_LINK,
 404         HELLO_TARGETED
 405 };
 406
 407 struct ldpd_af_conf {
 408         uint16_t                 keepalive;
 409         uint16_t                 lhello_holdtime;
 410         uint16_t                 lhello_interval;
 411         uint16_t                 thello_holdtime;
 412         uint16_t                 thello_interval;
 413         union ldpd_addr          trans_addr;
 414         int                      flags;
 415 };
 416 #define F_LDPD_AF_ENABLED       0x0001
 417 #define F_LDPD_AF_THELLO_ACCEPT 0x0002
 418 #define F_LDPD_AF_EXPNULL       0x0004
 419 #define F_LDPD_AF_NO_GTSM       0x0008
 420
 421 struct ldpd_conf {
 422         struct in_addr           rtr_id;
 423         struct ldpd_af_conf      ipv4;
 424         struct ldpd_af_conf      ipv6;
 425         struct iface_head        iface_tree;
 426         struct tnbr_head         tnbr_tree;
 427         struct nbrp_head         nbrp_tree;
 428         struct l2vpn_head        l2vpn_tree;
 429         uint16_t                 lhello_holdtime;
 430         uint16_t                 lhello_interval;
 431         uint16_t                 thello_holdtime;
 432         uint16_t                 thello_interval;
 433         uint16_t                 trans_pref;
 434         int                      flags;
 435         QOBJ_FIELDS
 436 };
 437 DECLARE_QOBJ_TYPE(ldpd_conf)
 438 #define F_LDPD_NO_FIB_UPDATE    0x0001
 439 #define F_LDPD_DS_CISCO_INTEROP 0x0002
 440 #define F_LDPD_ENABLED          0x0004
 441
 442 struct ldpd_af_global {
 443         struct thread           *disc_ev;
 444         struct thread           *edisc_ev;
 445         int                      ldp_disc_socket;
 446         int                      ldp_edisc_socket;
 447         int                      ldp_session_socket;
 448 };
 449
 450 struct ldpd_global {
 451         int                      cmd_opts;
 452         time_t                   uptime;
 453         struct in_addr           rtr_id;
 454         struct ldpd_af_global    ipv4;
 455         struct ldpd_af_global    ipv6;
 456         uint32_t                 conf_seqnum;
 457         int                      pfkeysock;
 458         struct if_addr_head      addr_list;
 459         struct global_adj_head   adj_tree;
 460         struct in_addr           mcast_addr_v4;
 461         struct in6_addr          mcast_addr_v6;
 462         TAILQ_HEAD(, pending_conn) pending_conns;
 463 };
 464
 465 /* kroute */
 466 struct kroute {
 467         int                      af;
 468         union ldpd_addr          prefix;
 469         uint8_t                  prefixlen;
 470         union ldpd_addr          nexthop;
 471         uint32_t                 local_label;
 472         uint32_t                 remote_label;
 473         unsigned short           ifindex;
 474         uint8_t                  priority;
 475         uint16_t                 flags;
 476 };
 477
 478 struct kpw {
 479         unsigned short           ifindex;
 480         int                      pw_type;
 481         int                      af;
 482         union ldpd_addr          nexthop;
 483         uint32_t                 local_label;
 484         uint32_t                 remote_label;
 485         uint8_t                  flags;
 486 };
 487
 488 struct kaddr {
 489         unsigned short           ifindex;
 490         int                      af;
 491         union ldpd_addr          addr;
 492         uint8_t                  prefixlen;
 493         union ldpd_addr          dstbrd;
 494 };
 495
 496 struct kif {
 497         char                     ifname[IF_NAMESIZE];
 498         unsigned short           ifindex;
 499         int                      flags;
 500         int                      mtu;
 501 };
 502
 503 /* control data structures */
 504 struct ctl_iface {
 505         int                      af;
 506         char                     name[IF_NAMESIZE];
 507         unsigned int             ifindex;
 508         int                      state;
 509         uint16_t                 flags;
 510         enum iface_type          type;
 511         uint16_t                 hello_holdtime;
 512         uint16_t                 hello_interval;
 513         time_t                   uptime;
 514         uint16_t                 adj_cnt;
 515 };
 516
 517 struct ctl_disc_if {
 518         char                     name[IF_NAMESIZE];
 519         int                      active_v4;
 520         int                      active_v6;
 521         int                      no_adj;
 522 };
 523
 524 struct ctl_disc_tnbr {
 525         int                      af;
 526         union ldpd_addr          addr;
 527         int                      no_adj;
 528 };
 529
 530 struct ctl_adj {
 531         int                      af;
 532         struct in_addr           id;
 533         enum hello_type          type;
 534         char                     ifname[IF_NAMESIZE];
 535         union ldpd_addr          src_addr;
 536         uint16_t                 holdtime;
 537         union ldpd_addr          trans_addr;
 538 };
 539
 540 struct ctl_nbr {
 541         int                      af;
 542         struct in_addr           id;
 543         union ldpd_addr          laddr;
 544         in_port_t                lport;
 545         union ldpd_addr          raddr;
 546         in_port_t                rport;
 547         uint16_t                 holdtime;
 548         time_t                   uptime;
 549         int                      nbr_state;
 550 };
 551
 552 struct ctl_rt {
 553         int                      af;
 554         union ldpd_addr          prefix;
 555         uint8_t                  prefixlen;
 556         struct in_addr           nexthop;       /* lsr-id */
 557         uint32_t                 local_label;
 558         uint32_t                 remote_label;
 559         uint8_t                  flags;
 560         uint8_t                  in_use;
 561         int                      first;
 562 };
 563
 564 struct ctl_pw {
 565         uint16_t                 type;
 566         char                     l2vpn_name[L2VPN_NAME_LEN];
 567         char                     ifname[IF_NAMESIZE];
 568         uint32_t                 pwid;
 569         struct in_addr           lsr_id;
 570         uint32_t                 local_label;
 571         uint32_t                 local_gid;
 572         uint16_t                 local_ifmtu;
 573         uint8_t                  local_cword;
 574         uint32_t                 remote_label;
 575         uint32_t                 remote_gid;
 576         uint16_t                 remote_ifmtu;
 577         uint8_t                  remote_cword;
 578         uint32_t                 status;
 579 };
 580
 581 extern struct ldpd_conf         *ldpd_conf;
 582 extern struct ldpd_global        global;
 583
 584 /* parse.y */
 585 struct ldpd_conf        *parse_config(char *);
 586 int                      cmdline_symset(char *);
 587
 588 /* kroute.c */
 589 void             kif_redistribute(const char *);
 590 int              kr_change(struct kroute *);
 591 int              kr_delete(struct kroute *);
 592 int              kmpw_set(struct kpw *);
 593 int              kmpw_unset(struct kpw *);
 594
 595 /* util.c */
 596 uint8_t          mask2prefixlen(in_addr_t);
 597 uint8_t          mask2prefixlen6(struct sockaddr_in6 *);
 598 in_addr_t        prefixlen2mask(uint8_t);
 599 struct in6_addr *prefixlen2mask6(uint8_t);
 600 void             ldp_applymask(int, union ldpd_addr *,
 601                     const union ldpd_addr *, int);
 602 int              ldp_addrcmp(int, const union ldpd_addr *,
 603                     const union ldpd_addr *);
 604 int              ldp_addrisset(int, const union ldpd_addr *);
 605 int              ldp_prefixcmp(int, const union ldpd_addr *,
 606                     const union ldpd_addr *, uint8_t);
 607 int              bad_addr_v4(struct in_addr);
 608 int              bad_addr_v6(struct in6_addr *);
 609 int              bad_addr(int, union ldpd_addr *);
 610 void             embedscope(struct sockaddr_in6 *);
 611 void             recoverscope(struct sockaddr_in6 *);
 612 void             addscope(struct sockaddr_in6 *, uint32_t);
 613 void             clearscope(struct in6_addr *);
 614 struct sockaddr *addr2sa(int af, union ldpd_addr *, uint16_t);
 615 void             sa2addr(struct sockaddr *, int *, union ldpd_addr *,
 616                     in_port_t *);
 617 socklen_t        sockaddr_len(struct sockaddr *);
 618
 619 /* ldpd.c */
 620 int                      ldp_write_handler(struct thread *);
 621 void                     main_imsg_compose_ldpe(int, pid_t, void *, uint16_t);
 622 void                     main_imsg_compose_lde(int, pid_t, void *, uint16_t);
 623 int                      main_imsg_compose_both(enum imsg_type, void *,
 624                             uint16_t);
 625 void                     imsg_event_add(struct imsgev *);
 626 int                      imsg_compose_event(struct imsgev *, uint16_t, uint32_t,
 627                             pid_t, int, void *, uint16_t);
 628 void                     evbuf_enqueue(struct evbuf *, struct ibuf *);
 629 void                     evbuf_event_add(struct evbuf *);
 630 void                     evbuf_init(struct evbuf *, int,
 631                             int (*)(struct thread *), void *);
 632 void                     evbuf_clear(struct evbuf *);
 633 struct ldpd_af_conf     *ldp_af_conf_get(struct ldpd_conf *, int);
 634 struct ldpd_af_global   *ldp_af_global_get(struct ldpd_global *, int);
 635 int                      ldp_is_dual_stack(struct ldpd_conf *);
 636 in_addr_t                ldp_rtr_id_get(struct ldpd_conf *);
 637 int                      ldp_reload(struct ldpd_conf *);
 638 int                      ldp_reload_ref(struct ldpd_conf *, void **);
 639 struct ldpd_conf        *ldp_dup_config_ref(struct ldpd_conf *, void **ref);
 640 struct ldpd_conf        *ldp_dup_config(struct ldpd_conf *);
 641 void                     ldp_clear_config(struct ldpd_conf *);
 642 void                     merge_config(struct ldpd_conf *, struct ldpd_conf *);
 643 struct ldpd_conf        *config_new_empty(void);
 644 void                     config_clear(struct ldpd_conf *);
 645
 646 /* ldp_vty_conf.c */
 647 /* NOTE: the parameters' names should be preserved because of codegen */
 648 struct iface            *iface_new_api(struct ldpd_conf *conf,
 649                             const char *name);
 650 void                     iface_del_api(struct ldpd_conf *conf,
 651                             struct iface *iface);
 652 struct tnbr             *tnbr_new_api(struct ldpd_conf *conf, int af,
 653                             union ldpd_addr *addr);
 654 void                     tnbr_del_api(struct ldpd_conf *conf, struct tnbr *tnbr);
 655 struct nbr_params       *nbrp_new_api(struct ldpd_conf *conf,
 656                             struct in_addr lsr_id);
 657 void                     nbrp_del_api(struct ldpd_conf *conf,
 658                             struct nbr_params *nbrp);
 659 struct l2vpn            *l2vpn_new_api(struct ldpd_conf *conf, const char *name);
 660 void                     l2vpn_del_api(struct ldpd_conf *conf,
 661                             struct l2vpn *l2vpn);
 662 struct l2vpn_if         *l2vpn_if_new_api(struct ldpd_conf *conf,
 663                             struct l2vpn *l2vpn, const char *ifname);
 664 void                     l2vpn_if_del_api(struct l2vpn *l2vpn,
 665                            struct l2vpn_if *lif);
 666 struct l2vpn_pw         *l2vpn_pw_new_api(struct ldpd_conf *conf,
 667                             struct l2vpn *l2vpn, const char *ifname);
 668 void                     l2vpn_pw_del_api(struct l2vpn *l2vpn,
 669                             struct l2vpn_pw *pw);
 670
 671 /* socket.c */
 672 int              ldp_create_socket(int, enum socket_type);
 673 void             sock_set_nonblock(int);
 674 void             sock_set_cloexec(int);
 675 void             sock_set_recvbuf(int);
 676 int              sock_set_reuse(int, int);
 677 int              sock_set_bindany(int, int);
 678 int              sock_set_md5sig(int, int, union ldpd_addr *, const char *);
 679 int              sock_set_ipv4_tos(int, int);
 680 int              sock_set_ipv4_pktinfo(int, int);
 681 int              sock_set_ipv4_recvdstaddr(int, int);
 682 int              sock_set_ipv4_recvif(int, int);
 683 int              sock_set_ipv4_minttl(int, int);
 684 int              sock_set_ipv4_ucast_ttl(int fd, int);
 685 int              sock_set_ipv4_mcast_ttl(int, uint8_t);
 686 int              sock_set_ipv4_mcast(struct iface *);
 687 int              sock_set_ipv4_mcast_loop(int);
 688 int              sock_set_ipv6_dscp(int, int);
 689 int              sock_set_ipv6_pktinfo(int, int);
 690 int              sock_set_ipv6_minhopcount(int, int);
 691 int              sock_set_ipv6_ucast_hops(int, int);
 692 int              sock_set_ipv6_mcast_hops(int, int);
 693 int              sock_set_ipv6_mcast(struct iface *);
 694 int              sock_set_ipv6_mcast_loop(int);
 695
 696 /* quagga */
 697 extern struct thread_master     *master;
 698
 699 /* ldp_zebra.c */
 700 void             ldp_zebra_init(struct thread_master *);
 701 void             ldp_zebra_destroy(void);
 702
 703 /* compatibility */
 704 #ifndef __OpenBSD__
 705 #define __IPV6_ADDR_MC_SCOPE(a)         ((a)->s6_addr[1] & 0x0f)
 706 #define __IPV6_ADDR_SCOPE_INTFACELOCAL  0x01
 707 #define IN6_IS_ADDR_MC_INTFACELOCAL(a)  \
 708         (IN6_IS_ADDR_MULTICAST(a) &&    \
 709         (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_INTFACELOCAL))
 710 #endif
 711
 712 #endif  /* _LDPD_H_ */