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Commit | Line | Data |
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12e41d03 | 1 | /* |
896014f4 DL |
2 | * PIM for Quagga |
3 | * Copyright (C) 2008 Everton da Silva Marques | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along | |
16 | * with this program; see the file COPYING; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | */ | |
12e41d03 DL |
19 | |
20 | #include <zebra.h> | |
21 | #include "zebra/rib.h" | |
22 | ||
23 | #include "log.h" | |
24 | #include "prefix.h" | |
25 | #include "zclient.h" | |
26 | #include "stream.h" | |
27 | #include "network.h" | |
28 | #include "thread.h" | |
e3be0432 | 29 | #include "prefix.h" |
05b0d0d0 | 30 | #include "vty.h" |
3613d898 | 31 | #include "lib_errors.h" |
12e41d03 DL |
32 | |
33 | #include "pimd.h" | |
e3be0432 | 34 | #include "pim_iface.h" |
12e41d03 DL |
35 | #include "pim_pim.h" |
36 | #include "pim_str.h" | |
e3be0432 | 37 | #include "pim_oil.h" |
12e41d03 DL |
38 | #include "pim_zlookup.h" |
39 | ||
05b0d0d0 DS |
40 | static struct zclient *zlookup = NULL; |
41 | ||
12e41d03 DL |
42 | static void zclient_lookup_sched(struct zclient *zlookup, int delay); |
43 | ||
44 | /* Connect to zebra for nexthop lookup. */ | |
45 | static int zclient_lookup_connect(struct thread *t) | |
46 | { | |
d62a17ae | 47 | struct zclient *zlookup; |
48 | ||
49 | zlookup = THREAD_ARG(t); | |
50 | ||
51 | if (zlookup->sock >= 0) { | |
52 | return 0; | |
53 | } | |
54 | ||
55 | if (zclient_socket_connect(zlookup) < 0) { | |
56 | ++zlookup->fail; | |
57 | zlog_warn("%s: failure connecting zclient socket: failures=%d", | |
58 | __PRETTY_FUNCTION__, zlookup->fail); | |
59 | } else { | |
60 | zlookup->fail = 0; /* reset counter on connection */ | |
61 | } | |
62 | ||
63 | if (zlookup->sock < 0) { | |
64 | /* Since last connect failed, retry within 10 secs */ | |
65 | zclient_lookup_sched(zlookup, 10); | |
66 | return -1; | |
67 | } | |
68 | ||
69 | return 0; | |
12e41d03 DL |
70 | } |
71 | ||
72 | /* Schedule connection with delay. */ | |
73 | static void zclient_lookup_sched(struct zclient *zlookup, int delay) | |
74 | { | |
d62a17ae | 75 | thread_add_timer(master, zclient_lookup_connect, zlookup, delay, |
76 | &zlookup->t_connect); | |
12e41d03 | 77 | |
d62a17ae | 78 | zlog_notice("%s: zclient lookup connection scheduled for %d seconds", |
79 | __PRETTY_FUNCTION__, delay); | |
12e41d03 DL |
80 | } |
81 | ||
82 | /* Schedule connection for now. */ | |
83 | static void zclient_lookup_sched_now(struct zclient *zlookup) | |
84 | { | |
d62a17ae | 85 | thread_add_event(master, zclient_lookup_connect, zlookup, 0, |
86 | &zlookup->t_connect); | |
12e41d03 | 87 | |
d62a17ae | 88 | zlog_notice("%s: zclient lookup immediate connection scheduled", |
89 | __PRETTY_FUNCTION__); | |
12e41d03 DL |
90 | } |
91 | ||
92 | /* Schedule reconnection, if needed. */ | |
93 | static void zclient_lookup_reconnect(struct zclient *zlookup) | |
94 | { | |
d62a17ae | 95 | if (zlookup->t_connect) { |
96 | return; | |
97 | } | |
12e41d03 | 98 | |
d62a17ae | 99 | zclient_lookup_sched_now(zlookup); |
12e41d03 DL |
100 | } |
101 | ||
102 | static void zclient_lookup_failed(struct zclient *zlookup) | |
103 | { | |
d62a17ae | 104 | if (zlookup->sock >= 0) { |
105 | if (close(zlookup->sock)) { | |
106 | zlog_warn("%s: closing fd=%d: errno=%d %s", __func__, | |
107 | zlookup->sock, errno, safe_strerror(errno)); | |
108 | } | |
109 | zlookup->sock = -1; | |
110 | } | |
111 | ||
112 | zclient_lookup_reconnect(zlookup); | |
12e41d03 DL |
113 | } |
114 | ||
d62a17ae | 115 | void zclient_lookup_free(void) |
0b6817c5 | 116 | { |
d62a17ae | 117 | zclient_stop(zlookup); |
118 | zclient_free(zlookup); | |
119 | zlookup = NULL; | |
0b6817c5 DS |
120 | } |
121 | ||
d62a17ae | 122 | void zclient_lookup_new(void) |
12e41d03 | 123 | { |
e1a1880d | 124 | zlookup = zclient_new_notify(master, &zclient_options_default); |
d62a17ae | 125 | if (!zlookup) { |
af4c2728 | 126 | flog_err(LIB_ERR_ZAPI_SOCKET, "%s: zclient_new() failure", |
3613d898 | 127 | __PRETTY_FUNCTION__); |
d62a17ae | 128 | return; |
129 | } | |
12e41d03 | 130 | |
d62a17ae | 131 | zlookup->sock = -1; |
132 | zlookup->t_connect = NULL; | |
342213ea | 133 | zlookup->privs = &pimd_privs; |
12e41d03 | 134 | |
d62a17ae | 135 | zclient_lookup_sched_now(zlookup); |
12e41d03 | 136 | |
d62a17ae | 137 | zlog_notice("%s: zclient lookup socket initialized", |
138 | __PRETTY_FUNCTION__); | |
12e41d03 DL |
139 | } |
140 | ||
71edad0f DS |
141 | static int zclient_read_nexthop(struct pim_instance *pim, |
142 | struct zclient *zlookup, | |
12e41d03 | 143 | struct pim_zlookup_nexthop nexthop_tab[], |
d62a17ae | 144 | const int tab_size, struct in_addr addr) |
12e41d03 | 145 | { |
d62a17ae | 146 | int num_ifindex = 0; |
147 | struct stream *s; | |
d62a17ae | 148 | uint16_t length; |
d7c0a89a QY |
149 | uint8_t marker; |
150 | uint8_t version; | |
d62a17ae | 151 | vrf_id_t vrf_id; |
152 | uint16_t command = 0; | |
153 | struct in_addr raddr; | |
154 | uint8_t distance; | |
155 | uint32_t metric; | |
156 | int nexthop_num; | |
157 | int i, err; | |
158 | ||
5cef40fc | 159 | if (PIM_DEBUG_PIM_NHT_DETAIL) { |
d62a17ae | 160 | char addr_str[INET_ADDRSTRLEN]; |
161 | pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); | |
5cef40fc DS |
162 | zlog_debug("%s: addr=%s(%s)", __PRETTY_FUNCTION__, addr_str, |
163 | pim->vrf->name); | |
d62a17ae | 164 | } |
165 | ||
166 | s = zlookup->ibuf; | |
167 | ||
168 | while (command != ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB) { | |
169 | stream_reset(s); | |
170 | err = zclient_read_header(s, zlookup->sock, &length, &marker, | |
171 | &version, &vrf_id, &command); | |
172 | if (err < 0) { | |
af4c2728 | 173 | flog_err(LIB_ERR_ZAPI_MISSMATCH, |
3613d898 DS |
174 | "%s: zclient_read_header() failed", |
175 | __PRETTY_FUNCTION__); | |
d62a17ae | 176 | zclient_lookup_failed(zlookup); |
177 | return -1; | |
178 | } | |
d62a17ae | 179 | } |
180 | ||
181 | raddr.s_addr = stream_get_ipv4(s); | |
182 | ||
183 | if (raddr.s_addr != addr.s_addr) { | |
184 | char addr_str[INET_ADDRSTRLEN]; | |
185 | char raddr_str[INET_ADDRSTRLEN]; | |
186 | pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); | |
187 | pim_inet4_dump("<raddr?>", raddr, raddr_str, sizeof(raddr_str)); | |
5cef40fc DS |
188 | zlog_warn("%s: address mismatch: addr=%s(%s) raddr=%s", |
189 | __PRETTY_FUNCTION__, addr_str, pim->vrf->name, | |
190 | raddr_str); | |
d62a17ae | 191 | /* warning only */ |
192 | } | |
193 | ||
194 | distance = stream_getc(s); | |
195 | metric = stream_getl(s); | |
196 | nexthop_num = stream_getc(s); | |
197 | ||
198 | if (nexthop_num < 1) { | |
209a5679 DS |
199 | if (PIM_DEBUG_PIM_NHT_DETAIL) |
200 | zlog_debug("%s: socket %d bad nexthop_num=%d", __func__, | |
201 | zlookup->sock, nexthop_num); | |
d62a17ae | 202 | return -6; |
203 | } | |
204 | ||
205 | for (i = 0; i < nexthop_num; ++i) { | |
206 | enum nexthop_types_t nexthop_type; | |
207 | struct pim_neighbor *nbr; | |
208 | struct prefix p; | |
209 | ||
210 | nexthop_type = stream_getc(s); | |
211 | if (num_ifindex >= tab_size) { | |
212 | char addr_str[INET_ADDRSTRLEN]; | |
213 | pim_inet4_dump("<addr?>", addr, addr_str, | |
214 | sizeof(addr_str)); | |
215 | zlog_warn( | |
5cef40fc DS |
216 | "%s: found too many nexthop ifindexes (%d > %d) for address %s(%s)", |
217 | __PRETTY_FUNCTION__, (num_ifindex + 1), | |
218 | tab_size, addr_str, pim->vrf->name); | |
d62a17ae | 219 | return num_ifindex; |
220 | } | |
56c1568b MB |
221 | nexthop_tab[num_ifindex].protocol_distance = distance; |
222 | nexthop_tab[num_ifindex].route_metric = metric; | |
d62a17ae | 223 | switch (nexthop_type) { |
224 | case NEXTHOP_TYPE_IFINDEX: | |
66f5152f MB |
225 | nexthop_tab[num_ifindex].ifindex = stream_getl(s); |
226 | /* | |
227 | * Connected route (i.e. no nexthop), use | |
228 | * address passed in as PIM nexthop. This will | |
229 | * allow us to work in cases where we are | |
230 | * trying to find a route for this box. | |
231 | */ | |
232 | nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET; | |
233 | nexthop_tab[num_ifindex].nexthop_addr.prefixlen = | |
234 | IPV4_MAX_BITLEN; | |
235 | nexthop_tab[num_ifindex].nexthop_addr.u.prefix4 = | |
236 | addr; | |
237 | ++num_ifindex; | |
238 | break; | |
d62a17ae | 239 | case NEXTHOP_TYPE_IPV4_IFINDEX: |
240 | case NEXTHOP_TYPE_IPV4: | |
241 | nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET; | |
66f5152f MB |
242 | nexthop_tab[num_ifindex].nexthop_addr.u.prefix4.s_addr = |
243 | stream_get_ipv4(s); | |
d62a17ae | 244 | nexthop_tab[num_ifindex].ifindex = stream_getl(s); |
d62a17ae | 245 | ++num_ifindex; |
246 | break; | |
247 | case NEXTHOP_TYPE_IPV6_IFINDEX: | |
248 | nexthop_tab[num_ifindex].nexthop_addr.family = AF_INET6; | |
249 | stream_get(&nexthop_tab[num_ifindex] | |
250 | .nexthop_addr.u.prefix6, | |
251 | s, sizeof(struct in6_addr)); | |
252 | nexthop_tab[num_ifindex].ifindex = stream_getl(s); | |
253 | ||
254 | p.family = AF_INET6; | |
255 | p.prefixlen = IPV6_MAX_PREFIXLEN; | |
256 | memcpy(&p.u.prefix6, | |
257 | &nexthop_tab[num_ifindex].nexthop_addr.u.prefix6, | |
258 | sizeof(struct in6_addr)); | |
259 | ||
260 | /* | |
261 | * If we are sending v6 secondary assume we receive v6 | |
262 | * secondary | |
263 | */ | |
71edad0f | 264 | if (pim->send_v6_secondary) |
d62a17ae | 265 | nbr = pim_neighbor_find_by_secondary( |
266 | if_lookup_by_index( | |
267 | nexthop_tab[num_ifindex] | |
268 | .ifindex, | |
71edad0f | 269 | vrf_id), |
d62a17ae | 270 | &p); |
271 | else | |
272 | nbr = pim_neighbor_find_if(if_lookup_by_index( | |
273 | nexthop_tab[num_ifindex].ifindex, | |
71edad0f | 274 | vrf_id)); |
d62a17ae | 275 | if (nbr) { |
276 | nexthop_tab[num_ifindex].nexthop_addr.family = | |
277 | AF_INET; | |
278 | nexthop_tab[num_ifindex] | |
279 | .nexthop_addr.u.prefix4 = | |
280 | nbr->source_addr; | |
281 | } | |
282 | ++num_ifindex; | |
283 | break; | |
56c1568b MB |
284 | default: |
285 | /* do nothing */ | |
286 | { | |
287 | char addr_str[INET_ADDRSTRLEN]; | |
288 | pim_inet4_dump("<addr?>", addr, addr_str, | |
289 | sizeof(addr_str)); | |
290 | zlog_warn( | |
291 | "%s: found non-ifindex nexthop type=%d for address %s(%s)", | |
292 | __PRETTY_FUNCTION__, nexthop_type, | |
293 | addr_str, pim->vrf->name); | |
294 | } | |
295 | break; | |
d62a17ae | 296 | } |
297 | } | |
298 | ||
299 | return num_ifindex; | |
12e41d03 DL |
300 | } |
301 | ||
71edad0f DS |
302 | static int zclient_lookup_nexthop_once(struct pim_instance *pim, |
303 | struct pim_zlookup_nexthop nexthop_tab[], | |
d62a17ae | 304 | const int tab_size, struct in_addr addr) |
12e41d03 | 305 | { |
d62a17ae | 306 | struct stream *s; |
307 | int ret; | |
308 | ||
5cef40fc | 309 | if (PIM_DEBUG_PIM_NHT_DETAIL) { |
d62a17ae | 310 | char addr_str[INET_ADDRSTRLEN]; |
311 | pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); | |
5cef40fc DS |
312 | zlog_debug("%s: addr=%s(%s)", __PRETTY_FUNCTION__, addr_str, |
313 | pim->vrf->name); | |
d62a17ae | 314 | } |
315 | ||
316 | /* Check socket. */ | |
317 | if (zlookup->sock < 0) { | |
af4c2728 | 318 | flog_err(LIB_ERR_ZAPI_SOCKET, |
d9ff4302 DS |
319 | "%s: zclient lookup socket is not connected", |
320 | __PRETTY_FUNCTION__); | |
d62a17ae | 321 | zclient_lookup_failed(zlookup); |
322 | return -1; | |
323 | } | |
324 | ||
3af2452c | 325 | if (pim->vrf->vrf_id == VRF_UNKNOWN) { |
d9ff4302 | 326 | zlog_notice( |
3af2452c DS |
327 | "%s: VRF: %s does not fully exist yet, delaying lookup", |
328 | __PRETTY_FUNCTION__, pim->vrf->name); | |
329 | return -1; | |
330 | } | |
331 | ||
d62a17ae | 332 | s = zlookup->obuf; |
333 | stream_reset(s); | |
71edad0f | 334 | zclient_create_header(s, ZEBRA_IPV4_NEXTHOP_LOOKUP_MRIB, pim->vrf_id); |
d62a17ae | 335 | stream_put_in_addr(s, &addr); |
336 | stream_putw_at(s, 0, stream_get_endp(s)); | |
337 | ||
338 | ret = writen(zlookup->sock, s->data, stream_get_endp(s)); | |
339 | if (ret < 0) { | |
af4c2728 | 340 | flog_err( |
3613d898 | 341 | LIB_ERR_SOCKET, |
5cef40fc DS |
342 | "%s: writen() failure: %d writing to zclient lookup socket", |
343 | __PRETTY_FUNCTION__, errno); | |
d62a17ae | 344 | zclient_lookup_failed(zlookup); |
345 | return -2; | |
346 | } | |
347 | if (ret == 0) { | |
af4c2728 | 348 | flog_err(LIB_ERR_SOCKET, |
3613d898 DS |
349 | "%s: connection closed on zclient lookup socket", |
350 | __PRETTY_FUNCTION__); | |
d62a17ae | 351 | zclient_lookup_failed(zlookup); |
352 | return -3; | |
353 | } | |
354 | ||
71edad0f | 355 | return zclient_read_nexthop(pim, zlookup, nexthop_tab, tab_size, addr); |
12e41d03 DL |
356 | } |
357 | ||
71edad0f DS |
358 | int zclient_lookup_nexthop(struct pim_instance *pim, |
359 | struct pim_zlookup_nexthop nexthop_tab[], | |
d62a17ae | 360 | const int tab_size, struct in_addr addr, |
361 | int max_lookup) | |
12e41d03 | 362 | { |
d62a17ae | 363 | int lookup; |
364 | uint32_t route_metric = 0xFFFFFFFF; | |
365 | uint8_t protocol_distance = 0xFF; | |
366 | ||
bfc92019 | 367 | pim->nexthop_lookups++; |
d62a17ae | 368 | |
369 | for (lookup = 0; lookup < max_lookup; ++lookup) { | |
370 | int num_ifindex; | |
371 | int first_ifindex; | |
372 | struct prefix nexthop_addr; | |
373 | ||
71edad0f DS |
374 | num_ifindex = zclient_lookup_nexthop_once(pim, nexthop_tab, |
375 | tab_size, addr); | |
d62a17ae | 376 | if (num_ifindex < 1) { |
5cef40fc | 377 | if (PIM_DEBUG_PIM_NHT) { |
d62a17ae | 378 | char addr_str[INET_ADDRSTRLEN]; |
379 | pim_inet4_dump("<addr?>", addr, addr_str, | |
380 | sizeof(addr_str)); | |
381 | zlog_debug( | |
5cef40fc DS |
382 | "%s: lookup=%d/%d: could not find nexthop ifindex for address %s(%s)", |
383 | __PRETTY_FUNCTION__, lookup, max_lookup, | |
384 | addr_str, pim->vrf->name); | |
d62a17ae | 385 | } |
386 | return -1; | |
387 | } | |
388 | ||
389 | if (lookup < 1) { | |
390 | /* this is the non-recursive lookup - save original | |
391 | * metric/distance */ | |
392 | route_metric = nexthop_tab[0].route_metric; | |
393 | protocol_distance = nexthop_tab[0].protocol_distance; | |
394 | } | |
395 | ||
396 | /* | |
397 | * FIXME: Non-recursive nexthop ensured only for first ifindex. | |
398 | * However, recursive route lookup should really be fixed in | |
399 | * zebra daemon. | |
400 | * See also TODO T24. | |
401 | * | |
402 | * So Zebra for NEXTHOP_TYPE_IPV4 returns the ifindex now since | |
403 | * it was being stored. This Doesn't solve all cases of | |
404 | * recursive lookup but for the most common types it does. | |
405 | */ | |
406 | first_ifindex = nexthop_tab[0].ifindex; | |
407 | nexthop_addr = nexthop_tab[0].nexthop_addr; | |
408 | if (first_ifindex > 0) { | |
409 | /* found: first ifindex is non-recursive nexthop */ | |
410 | ||
411 | if (lookup > 0) { | |
412 | /* Report non-recursive success after first | |
413 | * lookup */ | |
5cef40fc | 414 | if (PIM_DEBUG_PIM_NHT) { |
d62a17ae | 415 | char addr_str[INET_ADDRSTRLEN]; |
416 | pim_inet4_dump("<addr?>", addr, | |
417 | addr_str, | |
418 | sizeof(addr_str)); | |
419 | zlog_debug( | |
5cef40fc DS |
420 | "%s: lookup=%d/%d: found non-recursive ifindex=%d for address %s(%s) dist=%d met=%d", |
421 | __PRETTY_FUNCTION__, lookup, | |
422 | max_lookup, first_ifindex, | |
423 | addr_str, pim->vrf->name, | |
d62a17ae | 424 | nexthop_tab[0] |
425 | .protocol_distance, | |
426 | nexthop_tab[0].route_metric); | |
427 | } | |
428 | ||
429 | /* use last address as nexthop address */ | |
430 | nexthop_tab[0].nexthop_addr.u.prefix4 = addr; | |
431 | ||
432 | /* report original route metric/distance */ | |
433 | nexthop_tab[0].route_metric = route_metric; | |
434 | nexthop_tab[0].protocol_distance = | |
435 | protocol_distance; | |
436 | } | |
437 | ||
438 | return num_ifindex; | |
439 | } | |
440 | ||
5cef40fc | 441 | if (PIM_DEBUG_PIM_NHT) { |
d62a17ae | 442 | char addr_str[INET_ADDRSTRLEN]; |
443 | char nexthop_str[PREFIX_STRLEN]; | |
444 | pim_inet4_dump("<addr?>", addr, addr_str, | |
445 | sizeof(addr_str)); | |
446 | pim_addr_dump("<nexthop?>", &nexthop_addr, nexthop_str, | |
447 | sizeof(nexthop_str)); | |
448 | zlog_debug( | |
5cef40fc DS |
449 | "%s: lookup=%d/%d: zebra returned recursive nexthop %s for address %s(%s) dist=%d met=%d", |
450 | __PRETTY_FUNCTION__, lookup, max_lookup, | |
451 | nexthop_str, addr_str, pim->vrf->name, | |
d62a17ae | 452 | nexthop_tab[0].protocol_distance, |
453 | nexthop_tab[0].route_metric); | |
454 | } | |
455 | ||
996c9314 LB |
456 | addr = nexthop_addr.u.prefix4; /* use nexthop addr for |
457 | recursive lookup */ | |
d62a17ae | 458 | |
459 | } /* for (max_lookup) */ | |
460 | ||
5cef40fc | 461 | if (PIM_DEBUG_PIM_NHT) { |
d62a17ae | 462 | char addr_str[INET_ADDRSTRLEN]; |
463 | pim_inet4_dump("<addr?>", addr, addr_str, sizeof(addr_str)); | |
464 | zlog_warn( | |
5cef40fc DS |
465 | "%s: lookup=%d/%d: failure searching recursive nexthop ifindex for address %s(%s)", |
466 | __PRETTY_FUNCTION__, lookup, max_lookup, addr_str, | |
467 | pim->vrf->name); | |
d5a0a629 | 468 | } |
12e41d03 | 469 | |
d62a17ae | 470 | return -2; |
12e41d03 | 471 | } |
05b0d0d0 | 472 | |
d62a17ae | 473 | void pim_zlookup_show_ip_multicast(struct vty *vty) |
05b0d0d0 | 474 | { |
d62a17ae | 475 | vty_out(vty, "Zclient lookup socket: "); |
476 | if (zlookup) { | |
477 | vty_out(vty, "%d failures=%d\n", zlookup->sock, zlookup->fail); | |
478 | } else { | |
479 | vty_out(vty, "<null zclient>\n"); | |
480 | } | |
05b0d0d0 | 481 | } |
e3be0432 | 482 | |
d62a17ae | 483 | int pim_zlookup_sg_statistics(struct channel_oil *c_oil) |
e3be0432 | 484 | { |
d62a17ae | 485 | struct stream *s = zlookup->obuf; |
486 | uint16_t command = 0; | |
487 | unsigned long long lastused; | |
488 | struct prefix_sg sg; | |
489 | int count = 0; | |
490 | int ret; | |
491 | struct interface *ifp = | |
7cfc7bcf | 492 | pim_if_find_by_vif_index(c_oil->pim, c_oil->oil.mfcc_parent); |
d62a17ae | 493 | |
494 | if (PIM_DEBUG_ZEBRA) { | |
495 | struct prefix_sg more; | |
496 | ||
497 | more.src = c_oil->oil.mfcc_origin; | |
498 | more.grp = c_oil->oil.mfcc_mcastgrp; | |
499 | zlog_debug( | |
5cef40fc DS |
500 | "Sending Request for New Channel Oil Information(%s) VIIF %d(%s)", |
501 | pim_str_sg_dump(&more), c_oil->oil.mfcc_parent, | |
502 | c_oil->pim->vrf->name); | |
d62a17ae | 503 | } |
504 | ||
505 | if (!ifp) | |
506 | return -1; | |
507 | ||
508 | stream_reset(s); | |
71edad0f | 509 | zclient_create_header(s, ZEBRA_IPMR_ROUTE_STATS, c_oil->pim->vrf_id); |
d62a17ae | 510 | stream_put_in_addr(s, &c_oil->oil.mfcc_origin); |
511 | stream_put_in_addr(s, &c_oil->oil.mfcc_mcastgrp); | |
512 | stream_putl(s, ifp->ifindex); | |
513 | stream_putw_at(s, 0, stream_get_endp(s)); | |
514 | ||
515 | count = stream_get_endp(s); | |
516 | ret = writen(zlookup->sock, s->data, count); | |
517 | if (ret <= 0) { | |
af4c2728 | 518 | flog_err( |
3613d898 | 519 | LIB_ERR_SOCKET, |
5cef40fc DS |
520 | "%s: writen() failure: %d writing to zclient lookup socket", |
521 | __PRETTY_FUNCTION__, errno); | |
d62a17ae | 522 | return -1; |
523 | } | |
524 | ||
525 | s = zlookup->ibuf; | |
526 | ||
527 | while (command != ZEBRA_IPMR_ROUTE_STATS) { | |
528 | int err; | |
529 | uint16_t length = 0; | |
530 | vrf_id_t vrf_id; | |
d7c0a89a QY |
531 | uint8_t marker; |
532 | uint8_t version; | |
d62a17ae | 533 | |
534 | stream_reset(s); | |
535 | err = zclient_read_header(s, zlookup->sock, &length, &marker, | |
536 | &version, &vrf_id, &command); | |
537 | if (err < 0) { | |
af4c2728 | 538 | flog_err(LIB_ERR_ZAPI_MISSMATCH, |
3613d898 DS |
539 | "%s: zclient_read_header() failed", |
540 | __PRETTY_FUNCTION__); | |
d62a17ae | 541 | zclient_lookup_failed(zlookup); |
542 | return -1; | |
543 | } | |
544 | } | |
545 | ||
546 | sg.src.s_addr = stream_get_ipv4(s); | |
547 | sg.grp.s_addr = stream_get_ipv4(s); | |
548 | if (sg.src.s_addr != c_oil->oil.mfcc_origin.s_addr | |
549 | || sg.grp.s_addr != c_oil->oil.mfcc_mcastgrp.s_addr) { | |
5667319b DS |
550 | if (PIM_DEBUG_ZEBRA) { |
551 | struct prefix_sg more; | |
552 | ||
553 | more.src = c_oil->oil.mfcc_origin; | |
554 | more.grp = c_oil->oil.mfcc_mcastgrp; | |
af4c2728 | 555 | flog_err( |
3613d898 | 556 | LIB_ERR_ZAPI_MISSMATCH, |
5cef40fc DS |
557 | "%s: Received wrong %s(%s) information requested", |
558 | __PRETTY_FUNCTION__, pim_str_sg_dump(&more), | |
559 | c_oil->pim->vrf->name); | |
5667319b | 560 | } |
d62a17ae | 561 | zclient_lookup_failed(zlookup); |
562 | return -3; | |
563 | } | |
564 | ||
565 | stream_get(&lastused, s, sizeof(lastused)); | |
467c85f7 | 566 | stream_getl(s); |
d62a17ae | 567 | |
d62a17ae | 568 | c_oil->cc.lastused = lastused; |
e3be0432 | 569 | |
d62a17ae | 570 | return 0; |
e3be0432 | 571 | } |