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 #include "mlag.h"
  40
  41 /* For input/output buffer to zebra. */
  42 #define ZEBRA_MAX_PACKET_SIZ          16384U
  43
  44 /* Zebra header size. */
  45 #define ZEBRA_HEADER_SIZE             10
  46
  47 /* special socket path name to use TCP
  48  * @ is used as first character because that's abstract socket names on Linux
  49  */
  50 #define ZAPI_TCP_PATHNAME             "@tcp"
  51
  52 /* IPset size name stands for the name of the ipset entry
  53  * that can be created by using some zapi interfaces
  54  */
  55 #define ZEBRA_IPSET_NAME_SIZE   32
  56
  57 /* IPTable action is defined by two values: either
  58  * forward or drop
  59  */
  60 #define ZEBRA_IPTABLES_FORWARD 0
  61 #define ZEBRA_IPTABLES_DROP    1
  62
  63 /* Zebra FEC register command flags. */
  64 #define ZEBRA_FEC_REGISTER_LABEL          0x1
  65 #define ZEBRA_FEC_REGISTER_LABEL_INDEX    0x2
  66
  67 extern struct sockaddr_storage zclient_addr;
  68 extern socklen_t zclient_addr_len;
  69
  70 /* Zebra message types. */
  71 typedef enum {
  72         ZEBRA_INTERFACE_ADD,
  73         ZEBRA_INTERFACE_DELETE,
  74         ZEBRA_INTERFACE_ADDRESS_ADD,
  75         ZEBRA_INTERFACE_ADDRESS_DELETE,
  76         ZEBRA_INTERFACE_UP,
  77         ZEBRA_INTERFACE_DOWN,
  78         ZEBRA_INTERFACE_SET_MASTER,
  79         ZEBRA_INTERFACE_SET_PROTODOWN,
  80         ZEBRA_ROUTE_ADD,
  81         ZEBRA_ROUTE_DELETE,
  82         ZEBRA_ROUTE_NOTIFY_OWNER,
  83         ZEBRA_REDISTRIBUTE_ADD,
  84         ZEBRA_REDISTRIBUTE_DELETE,
  85         ZEBRA_REDISTRIBUTE_DEFAULT_ADD,
  86         ZEBRA_REDISTRIBUTE_DEFAULT_DELETE,
  87         ZEBRA_ROUTER_ID_ADD,
  88         ZEBRA_ROUTER_ID_DELETE,
  89         ZEBRA_ROUTER_ID_UPDATE,
  90         ZEBRA_HELLO,
  91         ZEBRA_CAPABILITIES,
  92         ZEBRA_NEXTHOP_REGISTER,
  93         ZEBRA_NEXTHOP_UNREGISTER,
  94         ZEBRA_NEXTHOP_UPDATE,
  95         ZEBRA_INTERFACE_NBR_ADDRESS_ADD,
  96         ZEBRA_INTERFACE_NBR_ADDRESS_DELETE,
  97         ZEBRA_INTERFACE_BFD_DEST_UPDATE,
  98         ZEBRA_IMPORT_ROUTE_REGISTER,
  99         ZEBRA_IMPORT_ROUTE_UNREGISTER,
 100         ZEBRA_IMPORT_CHECK_UPDATE,
 101         ZEBRA_BFD_DEST_REGISTER,
 102         ZEBRA_BFD_DEST_DEREGISTER,
 103         ZEBRA_BFD_DEST_UPDATE,
 104         ZEBRA_BFD_DEST_REPLAY,
 105         ZEBRA_REDISTRIBUTE_ROUTE_ADD,
 106         ZEBRA_REDISTRIBUTE_ROUTE_DEL,
 107         ZEBRA_VRF_UNREGISTER,
 108         ZEBRA_VRF_ADD,
 109         ZEBRA_VRF_DELETE,
 110         ZEBRA_VRF_LABEL,
 111         ZEBRA_INTERFACE_VRF_UPDATE,
 112         ZEBRA_BFD_CLIENT_REGISTER,
 113         ZEBRA_BFD_CLIENT_DEREGISTER,
 114         ZEBRA_INTERFACE_ENABLE_RADV,
 115         ZEBRA_INTERFACE_DISABLE_RADV,
 116         ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB,
 117         ZEBRA_INTERFACE_LINK_PARAMS,
 118         ZEBRA_MPLS_LABELS_ADD,
 119         ZEBRA_MPLS_LABELS_DELETE,
 120         ZEBRA_IPMR_ROUTE_STATS,
 121         ZEBRA_LABEL_MANAGER_CONNECT,
 122         ZEBRA_LABEL_MANAGER_CONNECT_ASYNC,
 123         ZEBRA_GET_LABEL_CHUNK,
 124         ZEBRA_RELEASE_LABEL_CHUNK,
 125         ZEBRA_FEC_REGISTER,
 126         ZEBRA_FEC_UNREGISTER,
 127         ZEBRA_FEC_UPDATE,
 128         ZEBRA_ADVERTISE_DEFAULT_GW,
 129         ZEBRA_ADVERTISE_SVI_MACIP,
 130         ZEBRA_ADVERTISE_SUBNET,
 131         ZEBRA_ADVERTISE_ALL_VNI,
 132         ZEBRA_LOCAL_ES_ADD,
 133         ZEBRA_LOCAL_ES_DEL,
 134         ZEBRA_VNI_ADD,
 135         ZEBRA_VNI_DEL,
 136         ZEBRA_L3VNI_ADD,
 137         ZEBRA_L3VNI_DEL,
 138         ZEBRA_REMOTE_VTEP_ADD,
 139         ZEBRA_REMOTE_VTEP_DEL,
 140         ZEBRA_MACIP_ADD,
 141         ZEBRA_MACIP_DEL,
 142         ZEBRA_IP_PREFIX_ROUTE_ADD,
 143         ZEBRA_IP_PREFIX_ROUTE_DEL,
 144         ZEBRA_REMOTE_MACIP_ADD,
 145         ZEBRA_REMOTE_MACIP_DEL,
 146         ZEBRA_DUPLICATE_ADDR_DETECTION,
 147         ZEBRA_PW_ADD,
 148         ZEBRA_PW_DELETE,
 149         ZEBRA_PW_SET,
 150         ZEBRA_PW_UNSET,
 151         ZEBRA_PW_STATUS_UPDATE,
 152         ZEBRA_RULE_ADD,
 153         ZEBRA_RULE_DELETE,
 154         ZEBRA_RULE_NOTIFY_OWNER,
 155         ZEBRA_TABLE_MANAGER_CONNECT,
 156         ZEBRA_GET_TABLE_CHUNK,
 157         ZEBRA_RELEASE_TABLE_CHUNK,
 158         ZEBRA_IPSET_CREATE,
 159         ZEBRA_IPSET_DESTROY,
 160         ZEBRA_IPSET_ENTRY_ADD,
 161         ZEBRA_IPSET_ENTRY_DELETE,
 162         ZEBRA_IPSET_NOTIFY_OWNER,
 163         ZEBRA_IPSET_ENTRY_NOTIFY_OWNER,
 164         ZEBRA_IPTABLE_ADD,
 165         ZEBRA_IPTABLE_DELETE,
 166         ZEBRA_IPTABLE_NOTIFY_OWNER,
 167         ZEBRA_VXLAN_FLOOD_CONTROL,
 168         ZEBRA_VXLAN_SG_ADD,
 169         ZEBRA_VXLAN_SG_DEL,
 170 } zebra_message_types_t;
 171
 172 struct redist_proto {
 173         uint8_t enabled;
 174         struct list *instances;
 175 };
 176
 177 struct zclient_capabilities {
 178         uint32_t ecmp;
 179         bool mpls_enabled;
 180         enum mlag_role role;
 181 };
 182
 183 /* Structure for the zebra client. */
 184 struct zclient {
 185         /* The thread master we schedule ourselves on */
 186         struct thread_master *master;
 187
 188         /* Priviledges to change socket values */
 189         struct zebra_privs_t *privs;
 190
 191         /* Do we care about failure events for route install? */
 192         bool receive_notify;
 193
 194         /* Socket to zebra daemon. */
 195         int sock;
 196
 197         /* Connection failure count. */
 198         int fail;
 199
 200         /* Input buffer for zebra message. */
 201         struct stream *ibuf;
 202
 203         /* Output buffer for zebra message. */
 204         struct stream *obuf;
 205
 206         /* Buffer of data waiting to be written to zebra. */
 207         struct buffer *wb;
 208
 209         /* Read and connect thread. */
 210         struct thread *t_read;
 211         struct thread *t_connect;
 212
 213         /* Thread to write buffered data to zebra. */
 214         struct thread *t_write;
 215
 216         /* Redistribute information. */
 217         uint8_t redist_default; /* clients protocol */
 218         unsigned short instance;
 219         struct redist_proto mi_redist[AFI_MAX][ZEBRA_ROUTE_MAX];
 220         vrf_bitmap_t redist[AFI_MAX][ZEBRA_ROUTE_MAX];
 221
 222         /* Redistribute defauilt. */
 223         vrf_bitmap_t default_information[AFI_MAX];
 224
 225 #define ZAPI_CALLBACK_ARGS                                                     \
 226         int cmd, struct zclient *zclient, uint16_t length, vrf_id_t vrf_id
 227
 228         /* Pointer to the callback functions. */
 229         void (*zebra_connected)(struct zclient *);
 230         void (*zebra_capabilities)(struct zclient_capabilities *cap);
 231         int (*router_id_update)(ZAPI_CALLBACK_ARGS);
 232         int (*interface_add)(ZAPI_CALLBACK_ARGS);
 233         int (*interface_delete)(ZAPI_CALLBACK_ARGS);
 234         int (*interface_up)(ZAPI_CALLBACK_ARGS);
 235         int (*interface_down)(ZAPI_CALLBACK_ARGS);
 236         int (*interface_address_add)(ZAPI_CALLBACK_ARGS);
 237         int (*interface_address_delete)(ZAPI_CALLBACK_ARGS);
 238         int (*interface_link_params)(ZAPI_CALLBACK_ARGS);
 239         int (*interface_bfd_dest_update)(ZAPI_CALLBACK_ARGS);
 240         int (*interface_nbr_address_add)(ZAPI_CALLBACK_ARGS);
 241         int (*interface_nbr_address_delete)(ZAPI_CALLBACK_ARGS);
 242         int (*interface_vrf_update)(ZAPI_CALLBACK_ARGS);
 243         int (*nexthop_update)(ZAPI_CALLBACK_ARGS);
 244         int (*import_check_update)(ZAPI_CALLBACK_ARGS);
 245         int (*bfd_dest_replay)(ZAPI_CALLBACK_ARGS);
 246         int (*redistribute_route_add)(ZAPI_CALLBACK_ARGS);
 247         int (*redistribute_route_del)(ZAPI_CALLBACK_ARGS);
 248         int (*fec_update)(int, struct zclient *, uint16_t);
 249         int (*local_es_add)(ZAPI_CALLBACK_ARGS);
 250         int (*local_es_del)(ZAPI_CALLBACK_ARGS);
 251         int (*local_vni_add)(ZAPI_CALLBACK_ARGS);
 252         int (*local_vni_del)(ZAPI_CALLBACK_ARGS);
 253         int (*local_l3vni_add)(ZAPI_CALLBACK_ARGS);
 254         int (*local_l3vni_del)(ZAPI_CALLBACK_ARGS);
 255         void (*local_ip_prefix_add)(ZAPI_CALLBACK_ARGS);
 256         void (*local_ip_prefix_del)(ZAPI_CALLBACK_ARGS);
 257         int (*local_macip_add)(ZAPI_CALLBACK_ARGS);
 258         int (*local_macip_del)(ZAPI_CALLBACK_ARGS);
 259         int (*pw_status_update)(ZAPI_CALLBACK_ARGS);
 260         int (*route_notify_owner)(ZAPI_CALLBACK_ARGS);
 261         int (*rule_notify_owner)(ZAPI_CALLBACK_ARGS);
 262         void (*label_chunk)(ZAPI_CALLBACK_ARGS);
 263         int (*ipset_notify_owner)(ZAPI_CALLBACK_ARGS);
 264         int (*ipset_entry_notify_owner)(ZAPI_CALLBACK_ARGS);
 265         int (*iptable_notify_owner)(ZAPI_CALLBACK_ARGS);
 266         int (*vxlan_sg_add)(ZAPI_CALLBACK_ARGS);
 267         int (*vxlan_sg_del)(ZAPI_CALLBACK_ARGS);
 268 };
 269
 270 /* Zebra API message flag. */
 271 #define ZAPI_MESSAGE_NEXTHOP  0x01
 272 #define ZAPI_MESSAGE_DISTANCE 0x02
 273 #define ZAPI_MESSAGE_METRIC   0x04
 274 #define ZAPI_MESSAGE_TAG      0x08
 275 #define ZAPI_MESSAGE_MTU      0x10
 276 #define ZAPI_MESSAGE_SRCPFX   0x20
 277 #define ZAPI_MESSAGE_LABEL    0x40
 278 /*
 279  * This should only be used by a DAEMON that needs to communicate
 280  * the table being used is not in the VRF.  You must pass the
 281  * default vrf, else this will be ignored.
 282  */
 283 #define ZAPI_MESSAGE_TABLEID  0x80
 284
 285 #define ZSERV_VERSION 6
 286 /* Zserv protocol message header */
 287 struct zmsghdr {
 288         uint16_t length;
 289         /* Always set to 255 in new zserv */
 290         uint8_t marker;
 291         uint8_t version;
 292         vrf_id_t vrf_id;
 293         uint16_t command;
 294 };
 295
 296 struct zapi_nexthop {
 297         enum nexthop_types_t type;
 298         vrf_id_t vrf_id;
 299         ifindex_t ifindex;
 300         bool onlink;
 301         union {
 302                 union g_addr gate;
 303                 enum blackhole_type bh_type;
 304         };
 305
 306         /* MPLS labels for BGP-LU or Segment Routing */
 307         uint8_t label_num;
 308         mpls_label_t labels[MPLS_MAX_LABELS];
 309
 310         struct ethaddr rmac;
 311 };
 312
 313 /*
 314  * Some of these data structures do not map easily to
 315  * a actual data structure size giving different compilers
 316  * and systems.  For those data structures we need
 317  * to use the smallest available stream_getX/putX functions
 318  * to encode/decode.
 319  */
 320 struct zapi_route {
 321         uint8_t type;
 322         unsigned short instance;
 323
 324         uint32_t flags;
 325
 326         uint8_t message;
 327
 328         /*
 329          * This is an enum but we are going to treat it as a uint8_t
 330          * for purpose of encoding/decoding
 331          */
 332         safi_t safi;
 333
 334         struct prefix prefix;
 335         struct prefix_ipv6 src_prefix;
 336
 337         uint16_t nexthop_num;
 338         struct zapi_nexthop nexthops[MULTIPATH_NUM];
 339
 340         uint8_t distance;
 341
 342         uint32_t metric;
 343
 344         route_tag_t tag;
 345
 346         uint32_t mtu;
 347
 348         vrf_id_t vrf_id;
 349
 350         uint32_t tableid;
 351 };
 352
 353 struct zapi_pw {
 354         char ifname[IF_NAMESIZE];
 355         ifindex_t ifindex;
 356         int type;
 357         int af;
 358         union g_addr nexthop;
 359         uint32_t local_label;
 360         uint32_t remote_label;
 361         uint8_t flags;
 362         union pw_protocol_fields data;
 363         uint8_t protocol;
 364 };
 365
 366 struct zapi_pw_status {
 367         char ifname[IF_NAMESIZE];
 368         ifindex_t ifindex;
 369         uint32_t status;
 370 };
 371
 372 enum zapi_route_notify_owner {
 373         ZAPI_ROUTE_FAIL_INSTALL,
 374         ZAPI_ROUTE_BETTER_ADMIN_WON,
 375         ZAPI_ROUTE_INSTALLED,
 376         ZAPI_ROUTE_REMOVED,
 377         ZAPI_ROUTE_REMOVE_FAIL,
 378 };
 379
 380 enum zapi_rule_notify_owner {
 381         ZAPI_RULE_FAIL_INSTALL,
 382         ZAPI_RULE_INSTALLED,
 383         ZAPI_RULE_REMOVED,
 384         ZAPI_RULE_FAIL_REMOVE,
 385 };
 386
 387 enum ipset_type {
 388         IPSET_NET_NET = 1,
 389         IPSET_NET_PORT_NET,
 390         IPSET_NET_PORT,
 391         IPSET_NET
 392 };
 393
 394 enum zapi_ipset_notify_owner {
 395         ZAPI_IPSET_FAIL_INSTALL,
 396         ZAPI_IPSET_INSTALLED,
 397         ZAPI_IPSET_REMOVED,
 398         ZAPI_IPSET_FAIL_REMOVE,
 399 };
 400
 401 enum zapi_ipset_entry_notify_owner {
 402         ZAPI_IPSET_ENTRY_FAIL_INSTALL,
 403         ZAPI_IPSET_ENTRY_INSTALLED,
 404         ZAPI_IPSET_ENTRY_REMOVED,
 405         ZAPI_IPSET_ENTRY_FAIL_REMOVE,
 406 };
 407
 408 enum zapi_iptable_notify_owner {
 409         ZAPI_IPTABLE_FAIL_INSTALL,
 410         ZAPI_IPTABLE_INSTALLED,
 411         ZAPI_IPTABLE_REMOVED,
 412         ZAPI_IPTABLE_FAIL_REMOVE,
 413 };
 414
 415 /* Zebra MAC types */
 416 #define ZEBRA_MACIP_TYPE_STICKY                0x01 /* Sticky MAC*/
 417 #define ZEBRA_MACIP_TYPE_GW                    0x02 /* gateway (SVI) mac*/
 418 #define ZEBRA_MACIP_TYPE_ROUTER_FLAG           0x04 /* Router Flag - proxy NA */
 419 #define ZEBRA_MACIP_TYPE_OVERRIDE_FLAG         0x08 /* Override Flag */
 420
 421 enum zebra_neigh_state { ZEBRA_NEIGH_INACTIVE = 0, ZEBRA_NEIGH_ACTIVE = 1 };
 422
 423 struct zclient_options {
 424         bool receive_notify;
 425 };
 426
 427 extern struct zclient_options zclient_options_default;
 428
 429 extern struct zclient *zclient_new(struct thread_master *m,
 430                                    struct zclient_options *opt);
 431
 432 extern void zclient_init(struct zclient *, int, unsigned short,
 433                          struct zebra_privs_t *privs);
 434 extern int zclient_start(struct zclient *);
 435 extern void zclient_stop(struct zclient *);
 436 extern void zclient_reset(struct zclient *);
 437 extern void zclient_free(struct zclient *);
 438
 439 extern int zclient_socket_connect(struct zclient *);
 440
 441 extern unsigned short *redist_check_instance(struct redist_proto *,
 442                                              unsigned short);
 443 extern void redist_add_instance(struct redist_proto *, unsigned short);
 444 extern void redist_del_instance(struct redist_proto *, unsigned short);
 445
 446 /*
 447  * Send to zebra that the specified vrf is using label to resolve
 448  * itself for L3VPN's.  Repeated calls of this function with
 449  * different labels will cause an effective update of the
 450  * label for lookup.  If you pass in MPLS_LABEL_NONE
 451  * we will cause a delete action and remove this label pop
 452  * operation.
 453  *
 454  * The underlying AF_MPLS doesn't care about afi's
 455  * but we can make the zebra_vrf keep track of what
 456  * we have installed and play some special games
 457  * to get them both installed.
 458  */
 459 extern void zclient_send_vrf_label(struct zclient *zclient, vrf_id_t vrf_id,
 460                                    afi_t afi, mpls_label_t label,
 461                                    enum lsp_types_t ltype);
 462
 463 extern void zclient_send_reg_requests(struct zclient *, vrf_id_t);
 464 extern void zclient_send_dereg_requests(struct zclient *, vrf_id_t);
 465
 466 extern void zclient_send_interface_radv_req(struct zclient *zclient,
 467                                             vrf_id_t vrf_id,
 468                                             struct interface *ifp, int enable,
 469                                             int ra_interval);
 470 extern int zclient_send_interface_protodown(struct zclient *zclient,
 471                                             vrf_id_t vrf_id,
 472                                             struct interface *ifp, bool down);
 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 extern int zebra_redistribute_default_send(int command, struct zclient *zclient,
 480                                            afi_t afi, vrf_id_t vrf_id);
 481
 482 /* If state has changed, update state and call zebra_redistribute_send. */
 483 extern void zclient_redistribute(int command, struct zclient *, afi_t, int type,
 484                                  unsigned short instance, vrf_id_t vrf_id);
 485
 486 /* If state has changed, update state and send the command to zebra. */
 487 extern void zclient_redistribute_default(int command, struct zclient *,
 488                                          afi_t, vrf_id_t vrf_id);
 489
 490 /* Send the message in zclient->obuf to the zebra daemon (or enqueue it).
 491    Returns 0 for success or -1 on an I/O error. */
 492 extern int zclient_send_message(struct zclient *);
 493
 494 /* create header for command, length to be filled in by user later */
 495 extern void zclient_create_header(struct stream *, uint16_t, vrf_id_t);
 496 /*
 497  * Read sizeof(struct zmsghdr) bytes from the provided socket and parse the
 498  * received data into the specified fields. If this is successful, read the
 499  * rest of the packet into the provided stream.
 500  *
 501  * s
 502  *    The stream to read into
 503  *
 504  * sock
 505  *    The socket to read from
 506  *
 507  * size
 508  *    Parsed message size will be placed in the pointed-at integer
 509  *
 510  * marker
 511  *    Parsed marker will be placed in the pointed-at byte
 512  *
 513  * version
 514  *    Parsed version will be placed in the pointed-at byte
 515  *
 516  * vrf_id
 517  *    Parsed VRF ID will be placed in the pointed-at vrf_id_t
 518  *
 519  * cmd
 520  *    Parsed command number will be placed in the pointed-at integer
 521  *
 522  * Returns:
 523  *    -1 if:
 524  *    - insufficient data for header was read
 525  *    - a version mismatch was detected
 526  *    - a marker mismatch was detected
 527  *    - header size field specified more data than could be read
 528  */
 529 extern int zclient_read_header(struct stream *s, int sock, uint16_t *size,
 530                                uint8_t *marker, uint8_t *version,
 531                                vrf_id_t *vrf_id, uint16_t *cmd);
 532 /*
 533  * Parse header from ZAPI message stream into struct zmsghdr.
 534  * This function assumes the stream getp points at the first byte of the header.
 535  * If the function is successful then the stream getp will point to the byte
 536  * immediately after the last byte of the header.
 537  *
 538  * zmsg
 539  *    The stream containing the header
 540  *
 541  * hdr
 542  *    The header struct to parse into.
 543  *
 544  * Returns:
 545  *    true if parsing succeeded, false otherwise
 546  */
 547 extern bool zapi_parse_header(struct stream *zmsg, struct zmsghdr *hdr);
 548
 549 extern void zclient_interface_set_master(struct zclient *client,
 550                                          struct interface *master,
 551                                          struct interface *slave);
 552 extern struct interface *zebra_interface_add_read(struct stream *, vrf_id_t);
 553 extern struct interface *zebra_interface_state_read(struct stream *s, vrf_id_t);
 554 extern struct connected *zebra_interface_address_read(int, struct stream *,
 555                                                       vrf_id_t);
 556 extern struct nbr_connected *
 557 zebra_interface_nbr_address_read(int, struct stream *, vrf_id_t);
 558 extern struct interface *zebra_interface_vrf_update_read(struct stream *s,
 559                                                          vrf_id_t vrf_id,
 560                                                          vrf_id_t *new_vrf_id);
 561 extern void zebra_interface_if_set_value(struct stream *, struct interface *);
 562 extern void zebra_router_id_update_read(struct stream *s, struct prefix *rid);
 563
 564 extern struct interface *zebra_interface_link_params_read(struct stream *s,
 565                                                           vrf_id_t vrf_id);
 566 extern size_t zebra_interface_link_params_write(struct stream *,
 567                                                 struct interface *);
 568 extern int zclient_send_get_label_chunk(
 569         struct zclient  *zclient,
 570         uint8_t         keep,
 571         uint32_t        chunk_size);
 572
 573 extern int lm_label_manager_connect(struct zclient *zclient, int async);
 574 extern int lm_get_label_chunk(struct zclient *zclient, uint8_t keep,
 575                               uint32_t chunk_size, uint32_t *start,
 576                               uint32_t *end);
 577 extern int lm_release_label_chunk(struct zclient *zclient, uint32_t start,
 578                                   uint32_t end);
 579 extern int tm_table_manager_connect(struct zclient *zclient);
 580 extern int tm_get_table_chunk(struct zclient *zclient, uint32_t chunk_size,
 581                               uint32_t *start, uint32_t *end);
 582 extern int tm_release_table_chunk(struct zclient *zclient, uint32_t start,
 583                                   uint32_t end);
 584
 585 extern int zebra_send_pw(struct zclient *zclient, int command,
 586                          struct zapi_pw *pw);
 587 extern void zebra_read_pw_status_update(ZAPI_CALLBACK_ARGS, struct zapi_pw_status *pw);
 588
 589 extern int zclient_route_send(uint8_t, struct zclient *, struct zapi_route *);
 590 extern int zclient_send_rnh(struct zclient *zclient, int command,
 591                             struct prefix *p, bool exact_match,
 592                             vrf_id_t vrf_id);
 593 extern int zapi_route_encode(uint8_t, struct stream *, struct zapi_route *);
 594 extern int zapi_route_decode(struct stream *, struct zapi_route *);
 595 bool zapi_route_notify_decode(struct stream *s, struct prefix *p,
 596                               uint32_t *tableid,
 597                               enum zapi_route_notify_owner *note);
 598 bool zapi_rule_notify_decode(struct stream *s, uint32_t *seqno,
 599                              uint32_t *priority, uint32_t *unique,
 600                              ifindex_t *ifindex,
 601                              enum zapi_rule_notify_owner *note);
 602 bool zapi_ipset_notify_decode(struct stream *s,
 603                               uint32_t *unique,
 604                              enum zapi_ipset_notify_owner *note);
 605
 606 #define ZEBRA_IPSET_NAME_SIZE   32
 607
 608 bool zapi_ipset_entry_notify_decode(struct stream *s,
 609             uint32_t *unique,
 610             char *ipset_name,
 611             enum zapi_ipset_entry_notify_owner *note);
 612 bool zapi_iptable_notify_decode(struct stream *s,
 613                 uint32_t *unique,
 614                 enum zapi_iptable_notify_owner *note);
 615
 616 extern struct nexthop *nexthop_from_zapi_nexthop(struct zapi_nexthop *znh);
 617 extern bool zapi_nexthop_update_decode(struct stream *s,
 618                                        struct zapi_route *nhr);
 619
 620 static inline void zapi_route_set_blackhole(struct zapi_route *api,
 621                                             enum blackhole_type bh_type)
 622 {
 623         api->nexthop_num = 1;
 624         api->nexthops[0].type = NEXTHOP_TYPE_BLACKHOLE;
 625         api->nexthops[0].vrf_id = VRF_DEFAULT;
 626         api->nexthops[0].bh_type = bh_type;
 627         SET_FLAG(api->message, ZAPI_MESSAGE_NEXTHOP);
 628 };
 629
 630
 631 #endif /* _ZEBRA_ZCLIENT_H */