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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 "log.h" | |
22 | #include "privs.h" | |
744d91b3 | 23 | #include "if.h" |
065bee4b | 24 | #include "prefix.h" |
dfe43e25 DW |
25 | #include "vty.h" |
26 | #include "plist.h" | |
fe232c19 | 27 | #include "sockopt.h" |
12e41d03 DL |
28 | |
29 | #include "pimd.h" | |
8e38a2cf | 30 | #include "pim_rpf.h" |
12e41d03 | 31 | #include "pim_mroute.h" |
37653d4f | 32 | #include "pim_oil.h" |
12e41d03 DL |
33 | #include "pim_str.h" |
34 | #include "pim_time.h" | |
35 | #include "pim_iface.h" | |
36 | #include "pim_macro.h" | |
c8ae3ce8 | 37 | #include "pim_rp.h" |
59471fb8 | 38 | #include "pim_oil.h" |
998af219 | 39 | #include "pim_register.h" |
56638739 | 40 | #include "pim_ifchannel.h" |
e3be0432 | 41 | #include "pim_zlookup.h" |
15a5dafe | 42 | #include "pim_ssm.h" |
12e41d03 | 43 | |
8ea5d944 | 44 | static void mroute_read_on(struct pim_instance *pim); |
12e41d03 | 45 | |
cdbfaec5 | 46 | static int pim_mroute_set(struct pim_instance *pim, int enable) |
12e41d03 | 47 | { |
d62a17ae | 48 | int err; |
49 | int opt = enable ? MRT_INIT : MRT_DONE; | |
50 | socklen_t opt_len = sizeof(opt); | |
d62a17ae | 51 | long flags; |
52 | ||
cdbfaec5 | 53 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, opt, &opt, opt_len); |
d62a17ae | 54 | if (err) { |
55 | zlog_warn( | |
56 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,%s=%d): errno=%d: %s", | |
cdbfaec5 | 57 | __FILE__, __PRETTY_FUNCTION__, pim->mroute_socket, |
d62a17ae | 58 | enable ? "MRT_INIT" : "MRT_DONE", opt, errno, |
59 | safe_strerror(errno)); | |
60 | return -1; | |
61 | } | |
6806e04d | 62 | |
cdbfaec5 DS |
63 | /* |
64 | * We need to create the VRF table for the pim mroute_socket | |
65 | */ | |
66 | if (pim->vrf_id != VRF_DEFAULT) { | |
67 | opt = pim->vrf_id; | |
68 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, MRT_TABLE, | |
69 | &opt, opt_len); | |
70 | if (err) { | |
71 | zlog_warn( | |
72 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP, MRT_TABLE=%d): errno=%d: %s", | |
73 | __FILE__, __PRETTY_FUNCTION__, | |
74 | pim->mroute_socket, opt, errno, | |
75 | safe_strerror(errno)); | |
76 | return -1; | |
77 | } | |
78 | } | |
79 | ||
80 | setsockopt_so_recvbuf(pim->mroute_socket, 1024 * 1024 * 8); | |
d62a17ae | 81 | |
cdbfaec5 | 82 | flags = fcntl(pim->mroute_socket, F_GETFL, 0); |
d62a17ae | 83 | if (flags < 0) { |
cdbfaec5 DS |
84 | zlog_warn("Could not get flags on socket fd:%d %d %s", |
85 | pim->mroute_socket, errno, safe_strerror(errno)); | |
86 | close(pim->mroute_socket); | |
d62a17ae | 87 | return -1; |
88 | } | |
cdbfaec5 DS |
89 | if (fcntl(pim->mroute_socket, F_SETFL, flags | O_NONBLOCK)) { |
90 | zlog_warn("Could not set O_NONBLOCK on socket fd:%d %d %s", | |
91 | pim->mroute_socket, errno, safe_strerror(errno)); | |
92 | close(pim->mroute_socket); | |
d62a17ae | 93 | return -1; |
94 | } | |
95 | ||
96 | if (enable) { | |
77b7d90b | 97 | #if defined linux |
d62a17ae | 98 | int upcalls = IGMPMSG_WRVIFWHOLE; |
99 | opt = MRT_PIM; | |
100 | ||
cdbfaec5 | 101 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, opt, &upcalls, |
d62a17ae | 102 | sizeof(upcalls)); |
103 | if (err) { | |
104 | zlog_warn( | |
105 | "Failure to register for VIFWHOLE and WRONGVIF upcalls %d %s", | |
106 | errno, safe_strerror(errno)); | |
107 | return -1; | |
108 | } | |
77b7d90b | 109 | #else |
d62a17ae | 110 | zlog_warn( |
111 | "PIM-SM will not work properly on this platform, until the ability to receive the WRVIFWHOLE upcall"); | |
77b7d90b | 112 | #endif |
d62a17ae | 113 | } |
114 | ||
115 | return 0; | |
12e41d03 DL |
116 | } |
117 | ||
08e1fe76 | 118 | static const char *igmpmsgtype2str[IGMPMSG_WRVIFWHOLE + 1] = { |
d62a17ae | 119 | "<unknown_upcall?>", "NOCACHE", "WRONGVIF", "WHOLEPKT", "WRVIFWHOLE"}; |
120 | ||
121 | static int pim_mroute_msg_nocache(int fd, struct interface *ifp, | |
122 | const struct igmpmsg *msg) | |
12e41d03 | 123 | { |
d62a17ae | 124 | struct pim_interface *pim_ifp = ifp->info; |
125 | struct pim_upstream *up; | |
126 | struct pim_rpf *rpg; | |
127 | struct prefix_sg sg; | |
128 | ||
129 | rpg = RP(msg->im_dst); | |
130 | /* | |
131 | * If the incoming interface is unknown OR | |
132 | * the Interface type is SSM we don't need to | |
133 | * do anything here | |
134 | */ | |
135 | if ((pim_rpf_addr_is_inaddr_none(rpg)) || (!pim_ifp) | |
136 | || (!(PIM_I_am_DR(pim_ifp)))) { | |
137 | if (PIM_DEBUG_MROUTE_DETAIL) | |
138 | zlog_debug( | |
139 | "%s: Interface is not configured correctly to handle incoming packet: Could be !DR, !pim_ifp, !SM, !RP", | |
140 | __PRETTY_FUNCTION__); | |
141 | return 0; | |
142 | } | |
04b40f02 | 143 | |
d62a17ae | 144 | /* |
145 | * If we've received a multicast packet that isn't connected to | |
146 | * us | |
147 | */ | |
148 | if (!pim_if_connected_to_source(ifp, msg->im_src)) { | |
149 | if (PIM_DEBUG_MROUTE_DETAIL) | |
150 | zlog_debug( | |
151 | "%s: Received incoming packet that doesn't originate on our seg", | |
152 | __PRETTY_FUNCTION__); | |
153 | return 0; | |
154 | } | |
065bee4b | 155 | |
d62a17ae | 156 | memset(&sg, 0, sizeof(struct prefix_sg)); |
157 | sg.src = msg->im_src; | |
158 | sg.grp = msg->im_dst; | |
159 | ||
160 | up = pim_upstream_find_or_add(&sg, ifp, PIM_UPSTREAM_FLAG_MASK_FHR, | |
161 | __PRETTY_FUNCTION__); | |
162 | if (!up) { | |
163 | if (PIM_DEBUG_MROUTE) { | |
164 | zlog_debug( | |
165 | "%s: Failure to add upstream information for %s", | |
166 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg)); | |
167 | } | |
168 | return 0; | |
169 | } | |
c29a5806 | 170 | |
d62a17ae | 171 | /* |
172 | * I moved this debug till after the actual add because | |
173 | * I want to take advantage of the up->sg_str being filled in. | |
174 | */ | |
175 | if (PIM_DEBUG_MROUTE) { | |
176 | zlog_debug("%s: Adding a Route %s for WHOLEPKT consumption", | |
177 | __PRETTY_FUNCTION__, up->sg_str); | |
178 | } | |
8bfb8b67 | 179 | |
d62a17ae | 180 | PIM_UPSTREAM_FLAG_SET_SRC_STREAM(up->flags); |
181 | pim_upstream_keep_alive_timer_start(up, qpim_keep_alive_time); | |
182 | ||
183 | up->channel_oil->cc.pktcnt++; | |
184 | PIM_UPSTREAM_FLAG_SET_FHR(up->flags); | |
185 | // resolve mfcc_parent prior to mroute_add in channel_add_oif | |
186 | if (up->channel_oil->oil.mfcc_parent >= MAXVIFS) { | |
187 | int vif_index = 0; | |
188 | vif_index = pim_if_find_vifindex_by_ifindex( | |
189 | up->rpf.source_nexthop.interface->ifindex); | |
190 | up->channel_oil->oil.mfcc_parent = vif_index; | |
191 | } | |
192 | pim_register_join(up); | |
59471fb8 | 193 | |
d62a17ae | 194 | return 0; |
e355e30f | 195 | } |
12e41d03 | 196 | |
d62a17ae | 197 | static int pim_mroute_msg_wholepkt(int fd, struct interface *ifp, |
198 | const char *buf) | |
e355e30f | 199 | { |
d62a17ae | 200 | struct pim_interface *pim_ifp; |
201 | struct prefix_sg sg; | |
202 | struct pim_rpf *rpg; | |
203 | const struct ip *ip_hdr; | |
204 | struct pim_upstream *up; | |
205 | ||
206 | ip_hdr = (const struct ip *)buf; | |
207 | ||
208 | memset(&sg, 0, sizeof(struct prefix_sg)); | |
209 | sg.src = ip_hdr->ip_src; | |
210 | sg.grp = ip_hdr->ip_dst; | |
211 | ||
212 | up = pim_upstream_find(&sg); | |
213 | if (!up) { | |
214 | struct prefix_sg star = sg; | |
215 | star.src.s_addr = INADDR_ANY; | |
216 | ||
217 | up = pim_upstream_find(&star); | |
218 | ||
219 | if (up && PIM_UPSTREAM_FLAG_TEST_SRC_IGMP(up->flags)) { | |
220 | up = pim_upstream_add(&sg, ifp, | |
221 | PIM_UPSTREAM_FLAG_MASK_SRC_LHR, | |
222 | __PRETTY_FUNCTION__); | |
223 | if (!up) { | |
224 | if (PIM_DEBUG_MROUTE) | |
225 | zlog_debug( | |
226 | "%s: Unable to create upstream information for %s", | |
227 | __PRETTY_FUNCTION__, | |
228 | pim_str_sg_dump(&sg)); | |
229 | return 0; | |
230 | } | |
231 | pim_upstream_keep_alive_timer_start( | |
232 | up, qpim_keep_alive_time); | |
233 | pim_upstream_inherited_olist(up); | |
234 | pim_upstream_switch(up, PIM_UPSTREAM_JOINED); | |
235 | ||
236 | if (PIM_DEBUG_MROUTE) | |
237 | zlog_debug("%s: Creating %s upstream on LHR", | |
238 | __PRETTY_FUNCTION__, up->sg_str); | |
239 | return 0; | |
240 | } | |
241 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
242 | zlog_debug( | |
243 | "%s: Unable to find upstream channel WHOLEPKT%s", | |
244 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg)); | |
245 | } | |
246 | return 0; | |
247 | } | |
59471fb8 | 248 | |
d62a17ae | 249 | pim_ifp = up->rpf.source_nexthop.interface->info; |
998af219 | 250 | |
d62a17ae | 251 | rpg = RP(sg.grp); |
c8ae3ce8 | 252 | |
d62a17ae | 253 | if ((pim_rpf_addr_is_inaddr_none(rpg)) || (!pim_ifp) |
254 | || (!(PIM_I_am_DR(pim_ifp)))) { | |
255 | if (PIM_DEBUG_MROUTE) { | |
256 | zlog_debug("%s: Failed Check send packet", | |
257 | __PRETTY_FUNCTION__); | |
258 | } | |
259 | return 0; | |
260 | } | |
84366c7e | 261 | |
d62a17ae | 262 | /* |
263 | * If we've received a register suppress | |
264 | */ | |
265 | if (!up->t_rs_timer) { | |
266 | if (pim_is_grp_ssm(sg.grp)) { | |
267 | if (PIM_DEBUG_PIM_REG) | |
268 | zlog_debug( | |
269 | "%s register forward skipped as group is SSM", | |
270 | pim_str_sg_dump(&sg)); | |
271 | return 0; | |
272 | } | |
273 | pim_register_send((uint8_t *)buf + sizeof(struct ip), | |
274 | ntohs(ip_hdr->ip_len) - sizeof(struct ip), | |
275 | pim_ifp->primary_address, rpg, 0, up); | |
276 | } | |
277 | return 0; | |
e355e30f | 278 | } |
12e41d03 | 279 | |
d62a17ae | 280 | static int pim_mroute_msg_wrongvif(int fd, struct interface *ifp, |
281 | const struct igmpmsg *msg) | |
e355e30f | 282 | { |
d62a17ae | 283 | struct pim_ifchannel *ch; |
284 | struct pim_interface *pim_ifp; | |
285 | struct prefix_sg sg; | |
286 | ||
287 | memset(&sg, 0, sizeof(struct prefix_sg)); | |
288 | sg.src = msg->im_src; | |
289 | sg.grp = msg->im_dst; | |
290 | ||
291 | /* | |
292 | Send Assert(S,G) on iif as response to WRONGVIF kernel upcall. | |
293 | ||
294 | RFC 4601 4.8.2. PIM-SSM-Only Routers | |
295 | ||
296 | iif is the incoming interface of the packet. | |
297 | if (iif is in inherited_olist(S,G)) { | |
298 | send Assert(S,G) on iif | |
299 | } | |
300 | */ | |
301 | ||
302 | if (!ifp) { | |
303 | if (PIM_DEBUG_MROUTE) | |
304 | zlog_debug( | |
305 | "%s: WRONGVIF (S,G)=%s could not find input interface for input_vif_index=%d", | |
306 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
307 | msg->im_vif); | |
308 | return -1; | |
309 | } | |
12e41d03 | 310 | |
d62a17ae | 311 | pim_ifp = ifp->info; |
312 | if (!pim_ifp) { | |
313 | if (PIM_DEBUG_MROUTE) | |
314 | zlog_debug( | |
315 | "%s: WRONGVIF (S,G)=%s multicast not enabled on interface %s", | |
316 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
317 | ifp->name); | |
318 | return -2; | |
319 | } | |
c29a5806 | 320 | |
d62a17ae | 321 | ch = pim_ifchannel_find(ifp, &sg); |
322 | if (!ch) { | |
323 | struct prefix_sg star_g = sg; | |
324 | if (PIM_DEBUG_MROUTE) | |
325 | zlog_debug( | |
326 | "%s: WRONGVIF (S,G)=%s could not find channel on interface %s", | |
327 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
328 | ifp->name); | |
329 | ||
330 | star_g.src.s_addr = INADDR_ANY; | |
331 | ch = pim_ifchannel_find(ifp, &star_g); | |
332 | if (!ch) { | |
333 | if (PIM_DEBUG_MROUTE) | |
334 | zlog_debug( | |
335 | "%s: WRONGVIF (*,G)=%s could not find channel on interface %s", | |
336 | __PRETTY_FUNCTION__, | |
337 | pim_str_sg_dump(&star_g), ifp->name); | |
338 | return -3; | |
339 | } | |
340 | } | |
12e41d03 | 341 | |
d62a17ae | 342 | /* |
343 | RFC 4601: 4.6.1. (S,G) Assert Message State Machine | |
344 | ||
345 | Transitions from NoInfo State | |
346 | ||
347 | An (S,G) data packet arrives on interface I, AND | |
348 | CouldAssert(S,G,I)==TRUE An (S,G) data packet arrived on an | |
349 | downstream interface that is in our (S,G) outgoing interface | |
350 | list. We optimistically assume that we will be the assert | |
351 | winner for this (S,G), and so we transition to the "I am Assert | |
352 | Winner" state and perform Actions A1 (below), which will | |
353 | initiate the assert negotiation for (S,G). | |
354 | */ | |
355 | ||
356 | if (ch->ifassert_state != PIM_IFASSERT_NOINFO) { | |
357 | if (PIM_DEBUG_MROUTE) { | |
358 | zlog_debug( | |
359 | "%s: WRONGVIF (S,G)=%s channel is not on Assert NoInfo state for interface %s", | |
360 | __PRETTY_FUNCTION__, ch->sg_str, ifp->name); | |
361 | } | |
362 | return -4; | |
363 | } | |
e355e30f | 364 | |
d62a17ae | 365 | if (!PIM_IF_FLAG_TEST_COULD_ASSERT(ch->flags)) { |
366 | if (PIM_DEBUG_MROUTE) { | |
367 | zlog_debug( | |
368 | "%s: WRONGVIF (S,G)=%s interface %s is not downstream for channel", | |
369 | __PRETTY_FUNCTION__, ch->sg_str, ifp->name); | |
370 | } | |
371 | return -5; | |
372 | } | |
373 | ||
374 | if (assert_action_a1(ch)) { | |
375 | if (PIM_DEBUG_MROUTE) { | |
376 | zlog_debug( | |
377 | "%s: WRONGVIF (S,G)=%s assert_action_a1 failure on interface %s", | |
378 | __PRETTY_FUNCTION__, ch->sg_str, ifp->name); | |
379 | } | |
380 | return -6; | |
381 | } | |
e355e30f | 382 | |
d62a17ae | 383 | return 0; |
e355e30f DS |
384 | } |
385 | ||
d62a17ae | 386 | static int pim_mroute_msg_wrvifwhole(int fd, struct interface *ifp, |
387 | const char *buf) | |
08e1fe76 | 388 | { |
d62a17ae | 389 | const struct ip *ip_hdr = (const struct ip *)buf; |
390 | struct pim_interface *pim_ifp; | |
391 | struct pim_ifchannel *ch; | |
392 | struct pim_upstream *up; | |
393 | struct prefix_sg star_g; | |
394 | struct prefix_sg sg; | |
395 | struct channel_oil *oil; | |
396 | ||
397 | memset(&sg, 0, sizeof(struct prefix_sg)); | |
398 | sg.src = ip_hdr->ip_src; | |
399 | sg.grp = ip_hdr->ip_dst; | |
400 | ||
401 | ch = pim_ifchannel_find(ifp, &sg); | |
402 | if (ch) { | |
403 | if (PIM_DEBUG_MROUTE) | |
404 | zlog_debug( | |
405 | "WRVIFWHOLE (S,G)=%s found ifchannel on interface %s", | |
406 | ch->sg_str, ifp->name); | |
407 | return -1; | |
408 | } | |
b7ddd2ec | 409 | |
d62a17ae | 410 | star_g = sg; |
411 | star_g.src.s_addr = INADDR_ANY; | |
b7ddd2ec | 412 | #if 0 |
0490c22d DS |
413 | ch = pim_ifchannel_find(ifp, &star_g); |
414 | if (ch) | |
415 | { | |
416 | if (PIM_DEBUG_MROUTE) | |
417 | zlog_debug ("WRVIFWHOLE (*,G)=%s found ifchannel on interface %s", | |
418 | pim_str_sg_dump (&star_g), ifp->name); | |
419 | return -1; | |
420 | } | |
5cd11e3c | 421 | #endif |
08e1fe76 | 422 | |
d62a17ae | 423 | up = pim_upstream_find(&sg); |
424 | if (up) { | |
425 | struct pim_upstream *parent; | |
426 | struct pim_nexthop source; | |
427 | struct pim_rpf *rpf = RP(sg.grp); | |
428 | if (!rpf || !rpf->source_nexthop.interface) | |
429 | return 0; | |
430 | ||
431 | /* | |
432 | * If we have received a WRVIFWHOLE and are at this | |
433 | * point, we could be receiving the packet on the *,G | |
434 | * tree, let's check and if so we can safely drop | |
435 | * it. | |
436 | */ | |
437 | parent = pim_upstream_find(&star_g); | |
438 | if (parent && parent->rpf.source_nexthop.interface == ifp) | |
439 | return 0; | |
440 | ||
441 | pim_ifp = rpf->source_nexthop.interface->info; | |
442 | ||
443 | memset(&source, 0, sizeof(source)); | |
444 | /* | |
445 | * If we are the fhr that means we are getting a callback during | |
446 | * the pimreg period, so I believe we can ignore this packet | |
447 | */ | |
448 | if (!PIM_UPSTREAM_FLAG_TEST_FHR(up->flags)) { | |
449 | // No if channel, but upstream we are at the RP. | |
450 | if (pim_nexthop_lookup(&source, up->upstream_register, | |
451 | 0) | |
452 | == 0) | |
453 | pim_register_stop_send(source.interface, &sg, | |
454 | pim_ifp->primary_address, | |
455 | up->upstream_register); | |
456 | if (!up->channel_oil) | |
457 | up->channel_oil = pim_channel_oil_add( | |
458 | &sg, pim_ifp->mroute_vif_index); | |
459 | pim_upstream_inherited_olist(up); | |
460 | if (!up->channel_oil->installed) | |
461 | pim_mroute_add(up->channel_oil, | |
462 | __PRETTY_FUNCTION__); | |
463 | pim_upstream_set_sptbit(up, ifp); | |
464 | } else { | |
465 | if (I_am_RP(up->sg.grp)) { | |
466 | if (pim_nexthop_lookup(&source, | |
467 | up->upstream_register, 0) | |
468 | == 0) | |
469 | pim_register_stop_send( | |
470 | source.interface, &sg, | |
471 | pim_ifp->primary_address, | |
472 | up->upstream_register); | |
473 | up->sptbit = PIM_UPSTREAM_SPTBIT_TRUE; | |
474 | } | |
475 | pim_upstream_keep_alive_timer_start( | |
476 | up, qpim_keep_alive_time); | |
477 | pim_upstream_inherited_olist(up); | |
478 | pim_mroute_msg_wholepkt(fd, ifp, buf); | |
479 | } | |
480 | return 0; | |
481 | } | |
8e38a2cf | 482 | |
d62a17ae | 483 | pim_ifp = ifp->info; |
484 | oil = pim_channel_oil_add(&sg, pim_ifp->mroute_vif_index); | |
485 | if (!oil->installed) | |
486 | pim_mroute_add(oil, __PRETTY_FUNCTION__); | |
487 | if (pim_if_connected_to_source(ifp, sg.src)) { | |
488 | up = pim_upstream_add(&sg, ifp, PIM_UPSTREAM_FLAG_MASK_FHR, | |
489 | __PRETTY_FUNCTION__); | |
490 | if (!up) { | |
491 | if (PIM_DEBUG_MROUTE) | |
492 | zlog_debug( | |
493 | "%s: WRONGVIF%s unable to create upstream on interface", | |
494 | pim_str_sg_dump(&sg), ifp->name); | |
495 | return -2; | |
496 | } | |
497 | PIM_UPSTREAM_FLAG_SET_SRC_STREAM(up->flags); | |
498 | pim_upstream_keep_alive_timer_start(up, qpim_keep_alive_time); | |
499 | up->channel_oil = oil; | |
500 | up->channel_oil->cc.pktcnt++; | |
501 | pim_register_join(up); | |
502 | pim_upstream_inherited_olist(up); | |
503 | ||
504 | // Send the packet to the RP | |
505 | pim_mroute_msg_wholepkt(fd, ifp, buf); | |
506 | } | |
08e1fe76 | 507 | |
d62a17ae | 508 | return 0; |
08e1fe76 DS |
509 | } |
510 | ||
405d6357 DS |
511 | static int pim_mroute_msg(struct pim_instance *pim, const char *buf, |
512 | int buf_size) | |
e355e30f | 513 | { |
d62a17ae | 514 | struct interface *ifp; |
515 | struct pim_interface *pim_ifp; | |
516 | const struct ip *ip_hdr; | |
517 | const struct igmpmsg *msg; | |
518 | char ip_src_str[INET_ADDRSTRLEN] = ""; | |
519 | char ip_dst_str[INET_ADDRSTRLEN] = ""; | |
520 | char src_str[INET_ADDRSTRLEN] = "<src?>"; | |
521 | char grp_str[INET_ADDRSTRLEN] = "<grp?>"; | |
522 | struct in_addr ifaddr; | |
523 | struct igmp_sock *igmp; | |
524 | ||
525 | ip_hdr = (const struct ip *)buf; | |
526 | ||
527 | if (ip_hdr->ip_p == IPPROTO_IGMP) { | |
528 | ||
529 | /* We have the IP packet but we do not know which interface this | |
530 | * packet was | |
531 | * received on. Find the interface that is on the same subnet as | |
532 | * the source | |
533 | * of the IP packet. | |
534 | */ | |
405d6357 | 535 | ifp = pim_if_lookup_address_vrf(ip_hdr->ip_src, pim->vrf_id); |
d62a17ae | 536 | |
537 | if (!ifp) { | |
538 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
539 | pim_inet4_dump("<src?>", ip_hdr->ip_src, | |
540 | ip_src_str, sizeof(ip_src_str)); | |
541 | pim_inet4_dump("<dst?>", ip_hdr->ip_dst, | |
542 | ip_dst_str, sizeof(ip_dst_str)); | |
543 | ||
544 | zlog_warn( | |
545 | "%s: igmp kernel upcall could not find usable interface for %s -> %s", | |
546 | __PRETTY_FUNCTION__, ip_src_str, | |
547 | ip_dst_str); | |
548 | } | |
549 | return 0; | |
550 | } | |
551 | pim_ifp = ifp->info; | |
552 | ifaddr = pim_find_primary_addr(ifp); | |
553 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, | |
554 | ifaddr); | |
555 | ||
556 | if (PIM_DEBUG_MROUTE) { | |
557 | pim_inet4_dump("<src?>", ip_hdr->ip_src, ip_src_str, | |
558 | sizeof(ip_src_str)); | |
559 | pim_inet4_dump("<dst?>", ip_hdr->ip_dst, ip_dst_str, | |
560 | sizeof(ip_dst_str)); | |
561 | ||
562 | zlog_warn( | |
563 | "%s: igmp kernel upcall on %s(%p) for %s -> %s", | |
564 | __PRETTY_FUNCTION__, ifp->name, igmp, | |
565 | ip_src_str, ip_dst_str); | |
566 | } | |
567 | if (igmp) | |
568 | pim_igmp_packet(igmp, (char *)buf, buf_size); | |
569 | ||
570 | } else if (ip_hdr->ip_p) { | |
571 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
572 | pim_inet4_dump("<src?>", ip_hdr->ip_src, src_str, | |
573 | sizeof(src_str)); | |
574 | pim_inet4_dump("<grp?>", ip_hdr->ip_dst, grp_str, | |
575 | sizeof(grp_str)); | |
576 | zlog_debug( | |
577 | "%s: no kernel upcall proto=%d src: %s dst: %s msg_size=%d", | |
578 | __PRETTY_FUNCTION__, ip_hdr->ip_p, src_str, | |
579 | grp_str, buf_size); | |
580 | } | |
581 | ||
582 | } else { | |
583 | msg = (const struct igmpmsg *)buf; | |
584 | ||
585 | ifp = pim_if_find_by_vif_index(msg->im_vif); | |
586 | ||
587 | if (!ifp) | |
588 | return 0; | |
589 | if (PIM_DEBUG_MROUTE) { | |
590 | pim_inet4_dump("<src?>", msg->im_src, src_str, | |
591 | sizeof(src_str)); | |
592 | pim_inet4_dump("<grp?>", msg->im_dst, grp_str, | |
593 | sizeof(grp_str)); | |
594 | zlog_warn( | |
595 | "%s: pim kernel upcall %s type=%d ip_p=%d from fd=%d for (S,G)=(%s,%s) on %s vifi=%d size=%d", | |
596 | __PRETTY_FUNCTION__, | |
597 | igmpmsgtype2str[msg->im_msgtype], | |
405d6357 DS |
598 | msg->im_msgtype, ip_hdr->ip_p, |
599 | pim->mroute_socket, src_str, grp_str, ifp->name, | |
600 | msg->im_vif, buf_size); | |
d62a17ae | 601 | } |
602 | ||
603 | switch (msg->im_msgtype) { | |
604 | case IGMPMSG_WRONGVIF: | |
405d6357 DS |
605 | return pim_mroute_msg_wrongvif(pim->mroute_socket, ifp, |
606 | msg); | |
d62a17ae | 607 | break; |
608 | case IGMPMSG_NOCACHE: | |
405d6357 DS |
609 | return pim_mroute_msg_nocache(pim->mroute_socket, ifp, |
610 | msg); | |
d62a17ae | 611 | break; |
612 | case IGMPMSG_WHOLEPKT: | |
405d6357 | 613 | return pim_mroute_msg_wholepkt(pim->mroute_socket, ifp, |
d62a17ae | 614 | (const char *)msg); |
615 | break; | |
616 | case IGMPMSG_WRVIFWHOLE: | |
405d6357 DS |
617 | return pim_mroute_msg_wrvifwhole( |
618 | pim->mroute_socket, ifp, (const char *)msg); | |
d62a17ae | 619 | break; |
620 | default: | |
621 | break; | |
622 | } | |
623 | } | |
12e41d03 | 624 | |
d62a17ae | 625 | return 0; |
12e41d03 DL |
626 | } |
627 | ||
12e41d03 DL |
628 | static int mroute_read(struct thread *t) |
629 | { | |
8ea5d944 | 630 | struct pim_instance *pim; |
d62a17ae | 631 | static long long count; |
632 | char buf[10000]; | |
633 | int result = 0; | |
634 | int cont = 1; | |
d62a17ae | 635 | int rd; |
636 | ||
8ea5d944 | 637 | pim = THREAD_ARG(t); |
d62a17ae | 638 | |
639 | while (cont) { | |
8ea5d944 | 640 | rd = read(pim->mroute_socket, buf, sizeof(buf)); |
61e99c94 | 641 | if (rd <= 0) { |
d62a17ae | 642 | if (errno == EINTR) |
643 | continue; | |
644 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
645 | break; | |
646 | ||
647 | if (PIM_DEBUG_MROUTE) | |
648 | zlog_warn( | |
61e99c94 | 649 | "%s: failure reading rd=%d: fd=%d: errno=%d: %s", |
8ea5d944 DS |
650 | __PRETTY_FUNCTION__, rd, |
651 | pim->mroute_socket, errno, | |
d62a17ae | 652 | safe_strerror(errno)); |
653 | goto done; | |
654 | } | |
655 | ||
405d6357 | 656 | result = pim_mroute_msg(pim, buf, rd); |
d62a17ae | 657 | |
658 | count++; | |
659 | if (count % qpim_packet_process == 0) | |
660 | cont = 0; | |
661 | } | |
662 | /* Keep reading */ | |
663 | done: | |
8ea5d944 | 664 | mroute_read_on(pim); |
12e41d03 | 665 | |
d62a17ae | 666 | return result; |
12e41d03 DL |
667 | } |
668 | ||
8ea5d944 | 669 | static void mroute_read_on(struct pim_instance *pim) |
12e41d03 | 670 | { |
ff673f45 | 671 | thread_add_read(master, mroute_read, 0, pimg->mroute_socket, |
8ea5d944 | 672 | &pim->thread); |
12e41d03 DL |
673 | } |
674 | ||
8ea5d944 | 675 | static void mroute_read_off(struct pim_instance *pim) |
12e41d03 | 676 | { |
8ea5d944 | 677 | THREAD_OFF(pim->thread); |
12e41d03 DL |
678 | } |
679 | ||
6beed987 | 680 | int pim_mroute_socket_enable(struct pim_instance *pim) |
12e41d03 | 681 | { |
d62a17ae | 682 | int fd; |
12e41d03 | 683 | |
d62a17ae | 684 | if (pimd_privs.change(ZPRIVS_RAISE)) |
685 | zlog_err("pim_mroute_socket_enable: could not raise privs, %s", | |
686 | safe_strerror(errno)); | |
12e41d03 | 687 | |
d62a17ae | 688 | fd = socket(AF_INET, SOCK_RAW, IPPROTO_IGMP); |
12e41d03 | 689 | |
d62a17ae | 690 | if (pimd_privs.change(ZPRIVS_LOWER)) |
691 | zlog_err("pim_mroute_socket_enable: could not lower privs, %s", | |
692 | safe_strerror(errno)); | |
12e41d03 | 693 | |
d62a17ae | 694 | if (fd < 0) { |
695 | zlog_warn("Could not create mroute socket: errno=%d: %s", errno, | |
696 | safe_strerror(errno)); | |
697 | return -2; | |
698 | } | |
12e41d03 | 699 | |
cdbfaec5 DS |
700 | pim->mroute_socket = fd; |
701 | if (pim_mroute_set(pim, 1)) { | |
d62a17ae | 702 | zlog_warn( |
703 | "Could not enable mroute on socket fd=%d: errno=%d: %s", | |
704 | fd, errno, safe_strerror(errno)); | |
705 | close(fd); | |
cdbfaec5 | 706 | pim->mroute_socket = -1; |
d62a17ae | 707 | return -3; |
708 | } | |
12e41d03 | 709 | |
6beed987 | 710 | pim->mroute_socket_creation = pim_time_monotonic_sec(); |
b45cefcb | 711 | |
8ea5d944 | 712 | mroute_read_on(pim); |
12e41d03 | 713 | |
d62a17ae | 714 | return 0; |
12e41d03 DL |
715 | } |
716 | ||
6beed987 | 717 | int pim_mroute_socket_disable(struct pim_instance *pim) |
12e41d03 | 718 | { |
cdbfaec5 | 719 | if (pim_mroute_set(pim, 0)) { |
d62a17ae | 720 | zlog_warn( |
721 | "Could not disable mroute on socket fd=%d: errno=%d: %s", | |
405d6357 | 722 | pim->mroute_socket, errno, safe_strerror(errno)); |
d62a17ae | 723 | return -2; |
724 | } | |
725 | ||
6beed987 | 726 | if (close(pim->mroute_socket)) { |
d62a17ae | 727 | zlog_warn("Failure closing mroute socket: fd=%d errno=%d: %s", |
405d6357 | 728 | pim->mroute_socket, errno, safe_strerror(errno)); |
d62a17ae | 729 | return -3; |
730 | } | |
731 | ||
8ea5d944 | 732 | mroute_read_off(pim); |
6beed987 | 733 | pim->mroute_socket = -1; |
d62a17ae | 734 | |
735 | return 0; | |
12e41d03 DL |
736 | } |
737 | ||
738 | /* | |
739 | For each network interface (e.g., physical or a virtual tunnel) that | |
740 | would be used for multicast forwarding, a corresponding multicast | |
741 | interface must be added to the kernel. | |
742 | */ | |
d62a17ae | 743 | int pim_mroute_add_vif(struct interface *ifp, struct in_addr ifaddr, |
744 | unsigned char flags) | |
12e41d03 | 745 | { |
d62a17ae | 746 | struct pim_interface *pim_ifp = ifp->info; |
747 | struct vifctl vc; | |
748 | int err; | |
12e41d03 | 749 | |
d62a17ae | 750 | memset(&vc, 0, sizeof(vc)); |
751 | vc.vifc_vifi = pim_ifp->mroute_vif_index; | |
b3f2bf7c | 752 | #ifdef VIFF_USE_IFINDEX |
d62a17ae | 753 | vc.vifc_lcl_ifindex = ifp->ifindex; |
b3f2bf7c | 754 | #else |
d62a17ae | 755 | if (ifaddr.s_addr == INADDR_ANY) { |
756 | zlog_warn( | |
757 | "%s: unnumbered interfaces are not supported on this platform", | |
758 | __PRETTY_FUNCTION__); | |
759 | return -1; | |
760 | } | |
761 | memcpy(&vc.vifc_lcl_addr, &ifaddr, sizeof(vc.vifc_lcl_addr)); | |
b3f2bf7c | 762 | #endif |
d62a17ae | 763 | vc.vifc_flags = flags; |
764 | vc.vifc_threshold = PIM_MROUTE_MIN_TTL; | |
765 | vc.vifc_rate_limit = 0; | |
766 | ||
767 | #ifdef PIM_DVMRP_TUNNEL | |
768 | if (vc.vifc_flags & VIFF_TUNNEL) { | |
769 | memcpy(&vc.vifc_rmt_addr, &vif_remote_addr, | |
770 | sizeof(vc.vifc_rmt_addr)); | |
771 | } | |
12e41d03 DL |
772 | #endif |
773 | ||
ff673f45 | 774 | err = setsockopt(pimg->mroute_socket, IPPROTO_IP, MRT_ADD_VIF, |
d62a17ae | 775 | (void *)&vc, sizeof(vc)); |
776 | if (err) { | |
777 | char ifaddr_str[INET_ADDRSTRLEN]; | |
12e41d03 | 778 | |
d62a17ae | 779 | pim_inet4_dump("<ifaddr?>", ifaddr, ifaddr_str, |
780 | sizeof(ifaddr_str)); | |
12e41d03 | 781 | |
d62a17ae | 782 | zlog_warn( |
783 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_ADD_VIF,vif_index=%d,ifaddr=%s,flag=%d): errno=%d: %s", | |
ff673f45 | 784 | __FILE__, __PRETTY_FUNCTION__, pimg->mroute_socket, |
d62a17ae | 785 | ifp->ifindex, ifaddr_str, flags, errno, |
786 | safe_strerror(errno)); | |
787 | return -2; | |
788 | } | |
12e41d03 | 789 | |
d62a17ae | 790 | return 0; |
12e41d03 DL |
791 | } |
792 | ||
793 | int pim_mroute_del_vif(int vif_index) | |
794 | { | |
d62a17ae | 795 | struct vifctl vc; |
796 | int err; | |
797 | ||
798 | if (PIM_DEBUG_MROUTE) { | |
799 | struct interface *ifp = pim_if_find_by_vif_index(vif_index); | |
800 | zlog_debug("%s %s: Del Vif %d (%s) ", __FILE__, | |
801 | __PRETTY_FUNCTION__, vif_index, | |
802 | ifp ? ifp->name : "NULL"); | |
803 | } | |
12e41d03 | 804 | |
d62a17ae | 805 | memset(&vc, 0, sizeof(vc)); |
806 | vc.vifc_vifi = vif_index; | |
807 | ||
ff673f45 | 808 | err = setsockopt(pimg->mroute_socket, IPPROTO_IP, MRT_DEL_VIF, |
d62a17ae | 809 | (void *)&vc, sizeof(vc)); |
810 | if (err) { | |
811 | zlog_warn( | |
812 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_DEL_VIF,vif_index=%d): errno=%d: %s", | |
ff673f45 | 813 | __FILE__, __PRETTY_FUNCTION__, pimg->mroute_socket, |
d62a17ae | 814 | vif_index, errno, safe_strerror(errno)); |
815 | return -2; | |
816 | } | |
12e41d03 | 817 | |
d62a17ae | 818 | return 0; |
12e41d03 DL |
819 | } |
820 | ||
6a78764e | 821 | int pim_mroute_add(struct channel_oil *c_oil, const char *name) |
12e41d03 | 822 | { |
d62a17ae | 823 | int err; |
824 | int orig = 0; | |
825 | int orig_iif_vif = 0; | |
826 | ||
ff673f45 DS |
827 | pimg->mroute_add_last = pim_time_monotonic_sec(); |
828 | ++pimg->mroute_add_events; | |
d62a17ae | 829 | |
830 | /* Do not install route if incoming interface is undefined. */ | |
831 | if (c_oil->oil.mfcc_parent >= MAXVIFS) { | |
832 | if (PIM_DEBUG_MROUTE) { | |
833 | char buf[1000]; | |
834 | zlog_debug( | |
835 | "%s(%s) %s Attempting to add vifi that is invalid to mroute table", | |
836 | __PRETTY_FUNCTION__, name, | |
837 | pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
838 | } | |
839 | return -2; | |
840 | } | |
d3aded99 | 841 | |
d62a17ae | 842 | /* The linux kernel *expects* the incoming |
843 | * vif to be part of the outgoing list | |
844 | * in the case of a (*,G). | |
845 | */ | |
846 | if (c_oil->oil.mfcc_origin.s_addr == INADDR_ANY) { | |
847 | orig = c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent]; | |
848 | c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent] = 1; | |
849 | } | |
d3aded99 | 850 | |
d62a17ae | 851 | /* |
852 | * If we have an unresolved cache entry for the S,G | |
853 | * it is owned by the pimreg for the incoming IIF | |
854 | * So set pimreg as the IIF temporarily to cause | |
855 | * the packets to be forwarded. Then set it | |
856 | * to the correct IIF afterwords. | |
857 | */ | |
858 | if (!c_oil->installed && c_oil->oil.mfcc_origin.s_addr != INADDR_ANY | |
859 | && c_oil->oil.mfcc_parent != 0) { | |
860 | orig_iif_vif = c_oil->oil.mfcc_parent; | |
861 | c_oil->oil.mfcc_parent = 0; | |
862 | } | |
ff673f45 | 863 | err = setsockopt(pimg->mroute_socket, IPPROTO_IP, MRT_ADD_MFC, |
d62a17ae | 864 | &c_oil->oil, sizeof(c_oil->oil)); |
865 | ||
866 | if (!err && !c_oil->installed | |
867 | && c_oil->oil.mfcc_origin.s_addr != INADDR_ANY | |
868 | && orig_iif_vif != 0) { | |
869 | c_oil->oil.mfcc_parent = orig_iif_vif; | |
ff673f45 | 870 | err = setsockopt(pimg->mroute_socket, IPPROTO_IP, MRT_ADD_MFC, |
d62a17ae | 871 | &c_oil->oil, sizeof(c_oil->oil)); |
872 | } | |
0365f56b | 873 | |
d62a17ae | 874 | if (c_oil->oil.mfcc_origin.s_addr == INADDR_ANY) |
875 | c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent] = orig; | |
d3aded99 | 876 | |
d62a17ae | 877 | if (err) { |
878 | zlog_warn( | |
879 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_ADD_MFC): errno=%d: %s", | |
ff673f45 | 880 | __FILE__, __PRETTY_FUNCTION__, pimg->mroute_socket, |
d62a17ae | 881 | errno, safe_strerror(errno)); |
882 | return -2; | |
883 | } | |
12e41d03 | 884 | |
d62a17ae | 885 | if (PIM_DEBUG_MROUTE) { |
886 | char buf[1000]; | |
887 | zlog_debug("%s(%s), Added Route: %s", __PRETTY_FUNCTION__, name, | |
888 | pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
889 | } | |
6a78764e | 890 | |
d62a17ae | 891 | c_oil->installed = 1; |
892 | return 0; | |
12e41d03 DL |
893 | } |
894 | ||
d62a17ae | 895 | int pim_mroute_del(struct channel_oil *c_oil, const char *name) |
12e41d03 | 896 | { |
d62a17ae | 897 | int err; |
898 | ||
ff673f45 DS |
899 | pimg->mroute_del_last = pim_time_monotonic_sec(); |
900 | ++pimg->mroute_del_events; | |
d62a17ae | 901 | |
902 | if (!c_oil->installed) { | |
903 | if (PIM_DEBUG_MROUTE) { | |
904 | char buf[1000]; | |
905 | zlog_debug( | |
906 | "%s %s: vifi %d for route is %s not installed, do not need to send del req. ", | |
907 | __FILE__, __PRETTY_FUNCTION__, | |
908 | c_oil->oil.mfcc_parent, | |
909 | pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
910 | } | |
911 | return -2; | |
912 | } | |
12e41d03 | 913 | |
ff673f45 | 914 | err = setsockopt(pimg->mroute_socket, IPPROTO_IP, MRT_DEL_MFC, |
d62a17ae | 915 | &c_oil->oil, sizeof(c_oil->oil)); |
916 | if (err) { | |
917 | if (PIM_DEBUG_MROUTE) | |
918 | zlog_warn( | |
919 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_DEL_MFC): errno=%d: %s", | |
920 | __FILE__, __PRETTY_FUNCTION__, | |
ff673f45 | 921 | pimg->mroute_socket, errno, |
d62a17ae | 922 | safe_strerror(errno)); |
923 | return -2; | |
924 | } | |
429a291b | 925 | |
d62a17ae | 926 | if (PIM_DEBUG_MROUTE) { |
927 | char buf[1000]; | |
928 | zlog_debug("%s(%s), Deleted Route: %s", __PRETTY_FUNCTION__, | |
929 | name, pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
930 | } | |
781a1745 | 931 | |
d62a17ae | 932 | // Reset kernel installed flag |
933 | c_oil->installed = 0; | |
58302dc7 | 934 | |
d62a17ae | 935 | return 0; |
12e41d03 | 936 | } |
3667e8a0 | 937 | |
d62a17ae | 938 | void pim_mroute_update_counters(struct channel_oil *c_oil) |
3667e8a0 | 939 | { |
d62a17ae | 940 | struct sioc_sg_req sgreq; |
941 | ||
942 | c_oil->cc.oldpktcnt = c_oil->cc.pktcnt; | |
943 | c_oil->cc.oldbytecnt = c_oil->cc.bytecnt; | |
944 | c_oil->cc.oldwrong_if = c_oil->cc.wrong_if; | |
945 | ||
946 | if (!c_oil->installed) { | |
947 | c_oil->cc.lastused = 100 * qpim_keep_alive_time; | |
948 | if (PIM_DEBUG_MROUTE) { | |
949 | struct prefix_sg sg; | |
950 | ||
951 | sg.src = c_oil->oil.mfcc_origin; | |
952 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
953 | if (PIM_DEBUG_MROUTE) | |
954 | zlog_debug( | |
955 | "Channel(%s) is not installed no need to collect data from kernel", | |
956 | pim_str_sg_dump(&sg)); | |
957 | } | |
958 | return; | |
c7b1183f | 959 | } |
c7b1183f | 960 | |
d62a17ae | 961 | memset(&sgreq, 0, sizeof(sgreq)); |
962 | sgreq.src = c_oil->oil.mfcc_origin; | |
963 | sgreq.grp = c_oil->oil.mfcc_mcastgrp; | |
964 | ||
965 | pim_zlookup_sg_statistics(c_oil); | |
ff673f45 | 966 | if (ioctl(pimg->mroute_socket, SIOCGETSGCNT, &sgreq)) { |
d62a17ae | 967 | if (PIM_DEBUG_MROUTE) { |
968 | struct prefix_sg sg; | |
969 | ||
970 | sg.src = c_oil->oil.mfcc_origin; | |
971 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
972 | ||
973 | zlog_warn( | |
974 | "ioctl(SIOCGETSGCNT=%lu) failure for (S,G)=(%s): errno=%d: %s", | |
975 | (unsigned long)SIOCGETSGCNT, | |
976 | pim_str_sg_dump(&sg), errno, | |
977 | safe_strerror(errno)); | |
978 | } | |
979 | return; | |
c7b1183f | 980 | } |
3667e8a0 | 981 | |
d62a17ae | 982 | c_oil->cc.pktcnt = sgreq.pktcnt; |
983 | c_oil->cc.bytecnt = sgreq.bytecnt; | |
984 | c_oil->cc.wrong_if = sgreq.wrong_if; | |
3667e8a0 | 985 | |
d62a17ae | 986 | return; |
3667e8a0 | 987 | } |