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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 */ |