lib/zclient.h

   1 /* Zebra's client header.
   2  * Copyright (C) 1999 Kunihiro Ishiguro
   3  *
   4  * This file is part of GNU Zebra.
   5  *
   6  * GNU Zebra is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2, or (at your option)
   9  * any later version.
  10  *
  11  * GNU Zebra is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef _ZEBRA_ZCLIENT_H
  22 #define _ZEBRA_ZCLIENT_H
  23
  24 /* For struct zapi_route. */
  25 #include "prefix.h"
  26
  27 /* For struct interface and struct connected. */
  28 #include "if.h"
  29
  30 /* For vrf_bitmap_t. */
  31 #include "vrf.h"
  32
  33 /* For union g_addr */
  34 #include "nexthop.h"
  35
  36 /* For union pw_protocol_fields */
  37 #include "pw.h"
  38
  39 /* For input/output buffer to zebra. */
  40 #define ZEBRA_MAX_PACKET_SIZ          16384
  41
  42 /* Zebra header size. */
  43 #define ZEBRA_HEADER_SIZE             10
  44
  45 /* special socket path name to use TCP
  46  * @ is used as first character because that's abstract socket names on Linux
  47  */
  48 #define ZAPI_TCP_PATHNAME             "@tcp"
  49
  50 /* IPset size name stands for the name of the ipset entry
  51  * that can be created by using some zapi interfaces
  52  */
  53 #define ZEBRA_IPSET_NAME_SIZE   32
  54
  55 /* IPTable action is defined by two values: either
  56  * forward or drop
  57  */
  58 #define ZEBRA_IPTABLES_FORWARD 0
  59 #define ZEBRA_IPTABLES_DROP    1
  60
  61 /* Zebra FEC register command flags. */
  62 #define ZEBRA_FEC_REGISTER_LABEL          0x1
  63 #define ZEBRA_FEC_REGISTER_LABEL_INDEX    0x2
  64
  65 extern struct sockaddr_storage zclient_addr;
  66 extern socklen_t zclient_addr_len;
  67
  68 /* Zebra message types. */
  69 typedef enum {
  70         ZEBRA_INTERFACE_ADD,
  71         ZEBRA_INTERFACE_DELETE,
  72         ZEBRA_INTERFACE_ADDRESS_ADD,
  73         ZEBRA_INTERFACE_ADDRESS_DELETE,
  74         ZEBRA_INTERFACE_UP,
  75         ZEBRA_INTERFACE_DOWN,
  76         ZEBRA_INTERFACE_SET_MASTER,
  77         ZEBRA_ROUTE_ADD,
  78         ZEBRA_ROUTE_DELETE,
  79         ZEBRA_ROUTE_NOTIFY_OWNER,
  80         ZEBRA_REDISTRIBUTE_ADD,
  81         ZEBRA_REDISTRIBUTE_DELETE,
  82         ZEBRA_REDISTRIBUTE_DEFAULT_ADD,
  83         ZEBRA_REDISTRIBUTE_DEFAULT_DELETE,
  84         ZEBRA_ROUTER_ID_ADD,
  85         ZEBRA_ROUTER_ID_DELETE,
  86         ZEBRA_ROUTER_ID_UPDATE,
  87         ZEBRA_HELLO,
  88         ZEBRA_CAPABILITIES,
  89         ZEBRA_NEXTHOP_REGISTER,
  90         ZEBRA_NEXTHOP_UNREGISTER,
  91         ZEBRA_NEXTHOP_UPDATE,
  92         ZEBRA_INTERFACE_NBR_ADDRESS_ADD,
  93         ZEBRA_INTERFACE_NBR_ADDRESS_DELETE,
  94         ZEBRA_INTERFACE_BFD_DEST_UPDATE,
  95         ZEBRA_IMPORT_ROUTE_REGISTER,
  96         ZEBRA_IMPORT_ROUTE_UNREGISTER,
  97         ZEBRA_IMPORT_CHECK_UPDATE,
  98         ZEBRA_BFD_DEST_REGISTER,
  99         ZEBRA_BFD_DEST_DEREGISTER,
 100         ZEBRA_BFD_DEST_UPDATE,
 101         ZEBRA_BFD_DEST_REPLAY,
 102         ZEBRA_REDISTRIBUTE_ROUTE_ADD,
 103         ZEBRA_REDISTRIBUTE_ROUTE_DEL,
 104         ZEBRA_VRF_UNREGISTER,
 105         ZEBRA_VRF_ADD,
 106         ZEBRA_VRF_DELETE,
 107         ZEBRA_VRF_LABEL,
 108         ZEBRA_INTERFACE_VRF_UPDATE,
 109         ZEBRA_BFD_CLIENT_REGISTER,
 110         ZEBRA_BFD_CLIENT_DEREGISTER,
 111         ZEBRA_INTERFACE_ENABLE_RADV,
 112         ZEBRA_INTERFACE_DISABLE_RADV,
 113         ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB,
 114         ZEBRA_INTERFACE_LINK_PARAMS,
 115         ZEBRA_MPLS_LABELS_ADD,
 116         ZEBRA_MPLS_LABELS_DELETE,
 117         ZEBRA_IPMR_ROUTE_STATS,
 118         ZEBRA_LABEL_MANAGER_CONNECT,
 119         ZEBRA_LABEL_MANAGER_CONNECT_ASYNC,
 120         ZEBRA_GET_LABEL_CHUNK,
 121         ZEBRA_RELEASE_LABEL_CHUNK,
 122         ZEBRA_FEC_REGISTER,
 123         ZEBRA_FEC_UNREGISTER,
 124         ZEBRA_FEC_UPDATE,
 125         ZEBRA_ADVERTISE_DEFAULT_GW,
 126         ZEBRA_ADVERTISE_SUBNET,
 127         ZEBRA_ADVERTISE_ALL_VNI,
 128         ZEBRA_LOCAL_ES_ADD,
 129         ZEBRA_LOCAL_ES_DEL,
 130         ZEBRA_VNI_ADD,
 131         ZEBRA_VNI_DEL,
 132         ZEBRA_L3VNI_ADD,
 133         ZEBRA_L3VNI_DEL,
 134         ZEBRA_REMOTE_VTEP_ADD,
 135         ZEBRA_REMOTE_VTEP_DEL,
 136         ZEBRA_MACIP_ADD,
 137         ZEBRA_MACIP_DEL,
 138         ZEBRA_IP_PREFIX_ROUTE_ADD,
 139         ZEBRA_IP_PREFIX_ROUTE_DEL,
 140         ZEBRA_REMOTE_MACIP_ADD,
 141         ZEBRA_REMOTE_MACIP_DEL,
 142         ZEBRA_DUPLICATE_ADDR_DETECTION,
 143         ZEBRA_PW_ADD,
 144         ZEBRA_PW_DELETE,
 145         ZEBRA_PW_SET,
 146         ZEBRA_PW_UNSET,
 147         ZEBRA_PW_STATUS_UPDATE,
 148         ZEBRA_RULE_ADD,
 149         ZEBRA_RULE_DELETE,
 150         ZEBRA_RULE_NOTIFY_OWNER,
 151         ZEBRA_TABLE_MANAGER_CONNECT,
 152         ZEBRA_GET_TABLE_CHUNK,
 153         ZEBRA_RELEASE_TABLE_CHUNK,
 154         ZEBRA_IPSET_CREATE,
 155         ZEBRA_IPSET_DESTROY,
 156         ZEBRA_IPSET_ENTRY_ADD,
 157         ZEBRA_IPSET_ENTRY_DELETE,
 158         ZEBRA_IPSET_NOTIFY_OWNER,
 159         ZEBRA_IPSET_ENTRY_NOTIFY_OWNER,
 160         ZEBRA_IPTABLE_ADD,
 161         ZEBRA_IPTABLE_DELETE,
 162         ZEBRA_IPTABLE_NOTIFY_OWNER,
 163         ZEBRA_VXLAN_FLOOD_CONTROL,
 164 } zebra_message_types_t;
 165
 166 struct redist_proto {
 167         uint8_t enabled;
 168         struct list *instances;
 169 };
 170
 171 struct zclient_capabilities {
 172         uint32_t ecmp;
 173         bool mpls_enabled;
 174 };
 175
 176 /* Structure for the zebra client. */
 177 struct zclient {
 178         /* The thread master we schedule ourselves on */
 179         struct thread_master *master;
 180
 181         /* Priviledges to change socket values */
 182         struct zebra_privs_t *privs;
 183
 184         /* Do we care about failure events for route install? */
 185         bool receive_notify;
 186
 187         /* Socket to zebra daemon. */
 188         int sock;
 189
 190         /* Connection failure count. */
 191         int fail;
 192
 193         /* Input buffer for zebra message. */
 194         struct stream *ibuf;
 195
 196         /* Output buffer for zebra message. */
 197         struct stream *obuf;
 198
 199         /* Buffer of data waiting to be written to zebra. */
 200         struct buffer *wb;
 201
 202         /* Read and connect thread. */
 203         struct thread *t_read;
 204         struct thread *t_connect;
 205
 206         /* Thread to write buffered data to zebra. */
 207         struct thread *t_write;
 208
 209         /* Redistribute information. */
 210         uint8_t redist_default; /* clients protocol */
 211         unsigned short instance;
 212         struct redist_proto mi_redist[AFI_MAX][ZEBRA_ROUTE_MAX];
 213         vrf_bitmap_t redist[AFI_MAX][ZEBRA_ROUTE_MAX];
 214
 215         /* Redistribute defauilt. */
 216         vrf_bitmap_t default_information;
 217
 218         /* Pointer to the callback functions. */
 219         void (*zebra_connected)(struct zclient *);
 220         void (*zebra_capabilities)(struct zclient_capabilities *cap);
 221         int (*router_id_update)(int, struct zclient *, uint16_t, vrf_id_t);
 222         int (*interface_add)(int, struct zclient *, uint16_t, vrf_id_t);
 223         int (*interface_delete)(int, struct zclient *, uint16_t, vrf_id_t);
 224         int (*interface_up)(int, struct zclient *, uint16_t, vrf_id_t);
 225         int (*interface_down)(int, struct zclient *, uint16_t, vrf_id_t);
 226         int (*interface_address_add)(int, struct zclient *, uint16_t, vrf_id_t);
 227         int (*interface_address_delete)(int, struct zclient *, uint16_t,
 228                                         vrf_id_t);
 229         int (*interface_link_params)(int, struct zclient *, uint16_t);
 230         int (*interface_bfd_dest_update)(int, struct zclient *, uint16_t,
 231                                          vrf_id_t);
 232         int (*interface_nbr_address_add)(int, struct zclient *, uint16_t,
 233                                          vrf_id_t);
 234         int (*interface_nbr_address_delete)(int, struct zclient *, uint16_t,
 235                                             vrf_id_t);
 236         int (*interface_vrf_update)(int, struct zclient *, uint16_t, vrf_id_t);
 237         int (*nexthop_update)(int, struct zclient *, uint16_t, vrf_id_t);
 238         int (*import_check_update)(int, struct zclient *, uint16_t, vrf_id_t);
 239         int (*bfd_dest_replay)(int, struct zclient *, uint16_t, vrf_id_t);
 240         int (*redistribute_route_add)(int, struct zclient *, uint16_t,
 241                                       vrf_id_t);
 242         int (*redistribute_route_del)(int, struct zclient *, uint16_t,
 243                                       vrf_id_t);
 244         int (*fec_update)(int, struct zclient *, uint16_t);
 245         int (*local_es_add)(int command, struct zclient *zclient,
 246                             uint16_t length, vrf_id_t vrf_id);
 247         int (*local_es_del)(int command, struct zclient *zclient,
 248                             uint16_t length, vrf_id_t vrf_id);
 249         int (*local_vni_add)(int, struct zclient *, uint16_t, vrf_id_t);
 250         int (*local_vni_del)(int, struct zclient *, uint16_t, vrf_id_t);
 251         int (*local_l3vni_add)(int, struct zclient *, uint16_t, vrf_id_t);
 252         int (*local_l3vni_del)(int, struct zclient *, uint16_t, vrf_id_t);
 253         void (*local_ip_prefix_add)(int, struct zclient *, uint16_t, vrf_id_t);
 254         void (*local_ip_prefix_del)(int, struct zclient *, uint16_t, vrf_id_t);
 255         int (*local_macip_add)(int, struct zclient *, uint16_t, vrf_id_t);
 256         int (*local_macip_del)(int, struct zclient *, uint16_t, vrf_id_t);
 257         int (*pw_status_update)(int, struct zclient *, uint16_t, vrf_id_t);
 258         int (*route_notify_owner)(int command, struct zclient *zclient,
 259                                   uint16_t length, vrf_id_t vrf_id);
 260         int (*rule_notify_owner)(int command, struct zclient *zclient,
 261                                  uint16_t length, vrf_id_t vrf_id);
 262         void (*label_chunk)(int command, struct zclient *zclient,
 263                                 uint16_t length, vrf_id_t vrf_id);
 264         int (*ipset_notify_owner)(int command, struct zclient *zclient,
 265                                  uint16_t length, vrf_id_t vrf_id);
 266         int (*ipset_entry_notify_owner)(int command,
 267                                        struct zclient *zclient,
 268                                        uint16_t length,
 269                                        vrf_id_t vrf_id);
 270         int (*iptable_notify_owner)(int command,
 271                                     struct zclient *zclient,
 272                                     uint16_t length,
 273                                     vrf_id_t vrf_id);
 274 };
 275
 276 /* Zebra API message flag. */
 277 #define ZAPI_MESSAGE_NEXTHOP  0x01
 278 #define ZAPI_MESSAGE_DISTANCE 0x02
 279 #define ZAPI_MESSAGE_METRIC   0x04
 280 #define ZAPI_MESSAGE_TAG      0x08
 281 #define ZAPI_MESSAGE_MTU      0x10
 282 #define ZAPI_MESSAGE_SRCPFX   0x20
 283 #define ZAPI_MESSAGE_LABEL    0x40
 284 /*
 285  * This should only be used by a DAEMON that needs to communicate
 286  * the table being used is not in the VRF.  You must pass the
 287  * default vrf, else this will be ignored.
 288  */
 289 #define ZAPI_MESSAGE_TABLEID  0x80
 290
 291 #define ZSERV_VERSION 6
 292 /* Zserv protocol message header */
 293 struct zmsghdr {
 294         uint16_t length;
 295         /* Always set to 255 in new zserv */
 296         uint8_t marker;
 297         uint8_t version;
 298         vrf_id_t vrf_id;
 299         uint16_t command;
 300 };
 301
 302 struct zapi_nexthop {
 303         enum nexthop_types_t type;
 304         vrf_id_t vrf_id;
 305         ifindex_t ifindex;
 306         union {
 307                 union g_addr gate;
 308                 enum blackhole_type bh_type;
 309         };
 310
 311         /* MPLS labels for BGP-LU or Segment Routing */
 312         uint8_t label_num;
 313         mpls_label_t labels[MPLS_MAX_LABELS];
 314
 315         struct ethaddr rmac;
 316 };
 317
 318 /*
 319  * Some of these data structures do not map easily to
 320  * a actual data structure size giving different compilers
 321  * and systems.  For those data structures we need
 322  * to use the smallest available stream_getX/putX functions
 323  * to encode/decode.
 324  */
 325 struct zapi_route {
 326         uint8_t type;
 327         unsigned short instance;
 328
 329         uint32_t flags;
 330
 331         uint8_t message;
 332
 333         /*
 334          * This is an enum but we are going to treat it as a uint8_t
 335          * for purpose of encoding/decoding
 336          */
 337         safi_t safi;
 338
 339         struct prefix prefix;
 340         struct prefix_ipv6 src_prefix;
 341
 342         uint16_t nexthop_num;
 343         struct zapi_nexthop nexthops[MULTIPATH_NUM];
 344
 345         uint8_t distance;
 346
 347         uint32_t metric;
 348
 349         route_tag_t tag;
 350
 351         uint32_t mtu;
 352
 353         vrf_id_t vrf_id;
 354
 355         uint32_t tableid;
 356 };
 357
 358 struct zapi_pw {
 359         char ifname[IF_NAMESIZE];
 360         ifindex_t ifindex;
 361         int type;
 362         int af;
 363         union g_addr nexthop;
 364         uint32_t local_label;
 365         uint32_t remote_label;
 366         uint8_t flags;
 367         union pw_protocol_fields data;
 368         uint8_t protocol;
 369 };
 370
 371 struct zapi_pw_status {
 372         char ifname[IF_NAMESIZE];
 373         ifindex_t ifindex;
 374         uint32_t status;
 375 };
 376
 377 enum zapi_route_notify_owner {
 378         ZAPI_ROUTE_FAIL_INSTALL,
 379         ZAPI_ROUTE_BETTER_ADMIN_WON,
 380         ZAPI_ROUTE_INSTALLED,
 381         ZAPI_ROUTE_REMOVED,
 382         ZAPI_ROUTE_REMOVE_FAIL,
 383 };
 384
 385 enum zapi_rule_notify_owner {
 386         ZAPI_RULE_FAIL_INSTALL,
 387         ZAPI_RULE_INSTALLED,
 388         ZAPI_RULE_REMOVED,
 389         ZAPI_RULE_FAIL_REMOVE,
 390 };
 391
 392 enum ipset_type {
 393         IPSET_NET_NET = 1,
 394         IPSET_NET_PORT_NET,
 395         IPSET_NET_PORT,
 396         IPSET_NET
 397 };
 398
 399 enum zapi_ipset_notify_owner {
 400         ZAPI_IPSET_FAIL_INSTALL,
 401         ZAPI_IPSET_INSTALLED,
 402         ZAPI_IPSET_REMOVED,
 403         ZAPI_IPSET_FAIL_REMOVE,
 404 };
 405
 406 enum zapi_ipset_entry_notify_owner {
 407         ZAPI_IPSET_ENTRY_FAIL_INSTALL,
 408         ZAPI_IPSET_ENTRY_INSTALLED,
 409         ZAPI_IPSET_ENTRY_REMOVED,
 410         ZAPI_IPSET_ENTRY_FAIL_REMOVE,
 411 };
 412
 413 enum zapi_iptable_notify_owner {
 414         ZAPI_IPTABLE_FAIL_INSTALL,
 415         ZAPI_IPTABLE_INSTALLED,
 416         ZAPI_IPTABLE_REMOVED,
 417         ZAPI_IPTABLE_FAIL_REMOVE,
 418 };
 419
 420 /* Zebra MAC types */
 421 #define ZEBRA_MACIP_TYPE_STICKY                0x01 /* Sticky MAC*/
 422 #define ZEBRA_MACIP_TYPE_GW                    0x02 /* gateway (SVI) mac*/
 423 #define ZEBRA_MACIP_TYPE_ROUTER_FLAG           0x04 /* Router Flag - proxy NA */
 424 #define ZEBRA_MACIP_TYPE_OVERRIDE_FLAG         0x08 /* Override Flag */
 425
 426 struct zclient_options {
 427         bool receive_notify;
 428 };
 429
 430 extern struct zclient_options zclient_options_default;
 431
 432 extern struct zclient *zclient_new(struct thread_master *m,
 433                                    struct zclient_options *opt);
 434
 435 extern void zclient_init(struct zclient *, int, unsigned short,
 436                          struct zebra_privs_t *privs);
 437 extern int zclient_start(struct zclient *);
 438 extern void zclient_stop(struct zclient *);
 439 extern void zclient_reset(struct zclient *);
 440 extern void zclient_free(struct zclient *);
 441
 442 extern int zclient_socket_connect(struct zclient *);
 443
 444 extern unsigned short *redist_check_instance(struct redist_proto *,
 445                                              unsigned short);
 446 extern void redist_add_instance(struct redist_proto *, unsigned short);
 447 extern void redist_del_instance(struct redist_proto *, unsigned short);
 448
 449 /*
 450  * Send to zebra that the specified vrf is using label to resolve
 451  * itself for L3VPN's.  Repeated calls of this function with
 452  * different labels will cause an effective update of the
 453  * label for lookup.  If you pass in MPLS_LABEL_NONE
 454  * we will cause a delete action and remove this label pop
 455  * operation.
 456  *
 457  * The underlying AF_MPLS doesn't care about afi's
 458  * but we can make the zebra_vrf keep track of what
 459  * we have installed and play some special games
 460  * to get them both installed.
 461  */
 462 extern void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id,
 463                                    afi_t afi, mpls_label_t label,
 464                                    enum lsp_types_t ltype);
 465
 466 extern void zclient_send_reg_requests(struct zclient *, vrf_id_t);
 467 extern void zclient_send_dereg_requests(struct zclient *, vrf_id_t);
 468
 469 extern void zclient_send_interface_radv_req(struct zclient *zclient,
 470                                             vrf_id_t vrf_id,
 471                                             struct interface *ifp, int enable,
 472                                             int ra_interval);
 473
 474 /* Send redistribute command to zebra daemon. Do not update zclient state. */
 475 extern int zebra_redistribute_send(int command, struct zclient *, afi_t,
 476                                    int type, unsigned short instance,
 477                                    vrf_id_t vrf_id);
 478
 479 /* If state has changed, update state and call zebra_redistribute_send. */
 480 extern void zclient_redistribute(int command, struct zclient *, afi_t, int type,
 481                                  unsigned short instance, vrf_id_t vrf_id);
 482
 483 /* If state has changed, update state and send the command to zebra. */
 484 extern void zclient_redistribute_default(int command, struct zclient *,
 485                                          vrf_id_t vrf_id);
 486
 487 /* Send the message in zclient->obuf to the zebra daemon (or enqueue it).
 488    Returns 0 for success or -1 on an I/O error. */
 489 extern int zclient_send_message(struct zclient *);
 490
 491 /* create header for command, length to be filled in by user later */
 492 extern void zclient_create_header(struct stream *, uint16_t, vrf_id_t);
 493 /*
 494  * Read sizeof(struct zmsghdr) bytes from the provided socket and parse the
 495  * received data into the specified fields. If this is successful, read the
 496  * rest of the packet into the provided stream.
 497  *
 498  * s
 499  *    The stream to read into
 500  *
 501  * sock
 502  *    The socket to read from
 503  *
 504  * size
 505  *    Parsed message size will be placed in the pointed-at integer
 506  *
 507  * marker
 508  *    Parsed marker will be placed in the pointed-at byte
 509  *
 510  * version
 511  *    Parsed version will be placed in the pointed-at byte
 512  *
 513  * vrf_id
 514  *    Parsed VRF ID will be placed in the pointed-at vrf_id_t
 515  *
 516  * cmd
 517  *    Parsed command number will be placed in the pointed-at integer
 518  *
 519  * Returns:
 520  *    -1 if:
 521  *    - insufficient data for header was read
 522  *    - a version mismatch was detected
 523  *    - a marker mismatch was detected
 524  *    - header size field specified more data than could be read
 525  */
 526 extern int zclient_read_header(struct stream *s, int sock, uint16_t *size,
 527                                uint8_t *marker, uint8_t *version,
 528                                vrf_id_t *vrf_id, uint16_t *cmd);
 529 /*
 530  * Parse header from ZAPI message stream into struct zmsghdr.
 531  * This function assumes the stream getp points at the first byte of the header.
 532  * If the function is successful then the stream getp will point to the byte
 533  * immediately after the last byte of the header.
 534  *
 535  * zmsg
 536  *    The stream containing the header
 537  *
 538  * hdr
 539  *    The header struct to parse into.
 540  *
 541  * Returns:
 542  *    true if parsing succeeded, false otherwise
 543  */
 544 extern bool zapi_parse_header(struct stream *zmsg, struct zmsghdr *hdr);
 545
 546 extern void zclient_interface_set_master(struct zclient *client,
 547                                          struct interface *master,
 548                                          struct interface *slave);
 549 extern struct interface *zebra_interface_add_read(struct stream *, vrf_id_t);
 550 extern struct interface *zebra_interface_state_read(struct stream *s, vrf_id_t);
 551 extern struct connected *zebra_interface_address_read(int, struct stream *,
 552                                                       vrf_id_t);
 553 extern struct nbr_connected *
 554 zebra_interface_nbr_address_read(int, struct stream *, vrf_id_t);
 555 extern struct interface *zebra_interface_vrf_update_read(struct stream *s,
 556                                                          vrf_id_t vrf_id,
 557                                                          vrf_id_t *new_vrf_id);
 558 extern void zebra_interface_if_set_value(struct stream *, struct interface *);
 559 extern void zebra_router_id_update_read(struct stream *s, struct prefix *rid);
 560
 561 extern struct interface *zebra_interface_link_params_read(struct stream *);
 562 extern size_t zebra_interface_link_params_write(struct stream *,
 563                                                 struct interface *);
 564 extern int zclient_send_get_label_chunk(
 565         struct zclient  *zclient,
 566         uint8_t         keep,
 567         uint32_t        chunk_size);
 568
 569 extern int lm_label_manager_connect(struct zclient *zclient, int async);
 570 extern int lm_get_label_chunk(struct zclient *zclient, uint8_t keep,
 571                               uint32_t chunk_size, uint32_t *start,
 572                               uint32_t *end);
 573 extern int lm_release_label_chunk(struct zclient *zclient, uint32_t start,
 574                                   uint32_t end);
 575 extern int tm_table_manager_connect(struct zclient *zclient);
 576 extern int tm_get_table_chunk(struct zclient *zclient, uint32_t chunk_size,
 577                               uint32_t *start, uint32_t *end);
 578 extern int tm_release_table_chunk(struct zclient *zclient, uint32_t start,
 579                                   uint32_t end);
 580
 581 extern int zebra_send_pw(struct zclient *zclient, int command,
 582                          struct zapi_pw *pw);
 583 extern void zebra_read_pw_status_update(int command, struct zclient *zclient,
 584                                         zebra_size_t length, vrf_id_t vrf_id,
 585                                         struct zapi_pw_status *pw);
 586
 587 extern int zclient_route_send(uint8_t, struct zclient *, struct zapi_route *);
 588 extern int zclient_send_rnh(struct zclient *zclient, int command,
 589                             struct prefix *p, bool exact_match,
 590                             vrf_id_t vrf_id);
 591 extern int zapi_route_encode(uint8_t, struct stream *, struct zapi_route *);
 592 extern int zapi_route_decode(struct stream *, struct zapi_route *);
 593 bool zapi_route_notify_decode(struct stream *s, struct prefix *p,
 594                               uint32_t *tableid,
 595                               enum zapi_route_notify_owner *note);
 596 bool zapi_rule_notify_decode(struct stream *s, uint32_t *seqno,
 597                              uint32_t *priority, uint32_t *unique,
 598                              ifindex_t *ifindex,
 599                              enum zapi_rule_notify_owner *note);
 600 bool zapi_ipset_notify_decode(struct stream *s,
 601                               uint32_t *unique,
 602                              enum zapi_ipset_notify_owner *note);
 603
 604 #define ZEBRA_IPSET_NAME_SIZE   32
 605
 606 bool zapi_ipset_entry_notify_decode(struct stream *s,
 607             uint32_t *unique,
 608             char *ipset_name,
 609             enum zapi_ipset_entry_notify_owner *note);
 610 bool zapi_iptable_notify_decode(struct stream *s,
 611                 uint32_t *unique,
 612                 enum zapi_iptable_notify_owner *note);
 613
 614 extern struct nexthop *nexthop_from_zapi_nexthop(struct zapi_nexthop *znh);
 615 extern bool zapi_nexthop_update_decode(struct stream *s,
 616                                        struct zapi_route *nhr);
 617
 618 static inline void zapi_route_set_blackhole(struct zapi_route *api,
 619                                             enum blackhole_type bh_type)
 620 {
 621         api->nexthop_num = 1;
 622         api->nexthops[0].type = NEXTHOP_TYPE_BLACKHOLE;
 623         api->nexthops[0].vrf_id = VRF_DEFAULT;
 624         api->nexthops[0].bh_type = bh_type;
 625         SET_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP);
 626 };
 627
 628
 629 #endif /* _ZEBRA_ZCLIENT_H */