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