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