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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; |
f507c196 | 49 | int opt; |
d62a17ae | 50 | socklen_t opt_len = sizeof(opt); |
d62a17ae | 51 | long flags; |
52 | ||
cdbfaec5 DS |
53 | /* |
54 | * We need to create the VRF table for the pim mroute_socket | |
55 | */ | |
56 | if (pim->vrf_id != VRF_DEFAULT) { | |
f507c196 DS |
57 | if (pimd_privs.change(ZPRIVS_RAISE)) |
58 | zlog_err( | |
59 | "pim_mroute_socket_enable: could not raise privs, %s", | |
60 | safe_strerror(errno)); | |
61 | ||
44a1bd88 | 62 | opt = pim->vrf->data.l.table_id; |
cdbfaec5 DS |
63 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, MRT_TABLE, |
64 | &opt, opt_len); | |
65 | if (err) { | |
66 | zlog_warn( | |
67 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP, MRT_TABLE=%d): errno=%d: %s", | |
68 | __FILE__, __PRETTY_FUNCTION__, | |
69 | pim->mroute_socket, opt, errno, | |
70 | safe_strerror(errno)); | |
71 | return -1; | |
72 | } | |
f507c196 DS |
73 | |
74 | if (pimd_privs.change(ZPRIVS_LOWER)) | |
75 | zlog_err( | |
76 | "pim_mroute_socket_enable: could not lower privs, %s", | |
77 | safe_strerror(errno)); | |
78 | } | |
79 | ||
80 | opt = enable ? MRT_INIT : MRT_DONE; | |
81 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, opt, &opt, opt_len); | |
82 | if (err) { | |
83 | zlog_warn( | |
84 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,%s=%d): errno=%d: %s", | |
85 | __FILE__, __PRETTY_FUNCTION__, pim->mroute_socket, | |
86 | enable ? "MRT_INIT" : "MRT_DONE", opt, errno, | |
87 | safe_strerror(errno)); | |
88 | return -1; | |
cdbfaec5 DS |
89 | } |
90 | ||
91 | setsockopt_so_recvbuf(pim->mroute_socket, 1024 * 1024 * 8); | |
d62a17ae | 92 | |
cdbfaec5 | 93 | flags = fcntl(pim->mroute_socket, F_GETFL, 0); |
d62a17ae | 94 | if (flags < 0) { |
cdbfaec5 DS |
95 | zlog_warn("Could not get flags on socket fd:%d %d %s", |
96 | pim->mroute_socket, errno, safe_strerror(errno)); | |
97 | close(pim->mroute_socket); | |
d62a17ae | 98 | return -1; |
99 | } | |
cdbfaec5 DS |
100 | if (fcntl(pim->mroute_socket, F_SETFL, flags | O_NONBLOCK)) { |
101 | zlog_warn("Could not set O_NONBLOCK on socket fd:%d %d %s", | |
102 | pim->mroute_socket, errno, safe_strerror(errno)); | |
103 | close(pim->mroute_socket); | |
d62a17ae | 104 | return -1; |
105 | } | |
106 | ||
107 | if (enable) { | |
77b7d90b | 108 | #if defined linux |
d62a17ae | 109 | int upcalls = IGMPMSG_WRVIFWHOLE; |
110 | opt = MRT_PIM; | |
111 | ||
cdbfaec5 | 112 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, opt, &upcalls, |
d62a17ae | 113 | sizeof(upcalls)); |
114 | if (err) { | |
115 | zlog_warn( | |
116 | "Failure to register for VIFWHOLE and WRONGVIF upcalls %d %s", | |
117 | errno, safe_strerror(errno)); | |
118 | return -1; | |
119 | } | |
77b7d90b | 120 | #else |
d62a17ae | 121 | zlog_warn( |
122 | "PIM-SM will not work properly on this platform, until the ability to receive the WRVIFWHOLE upcall"); | |
77b7d90b | 123 | #endif |
d62a17ae | 124 | } |
125 | ||
126 | return 0; | |
12e41d03 DL |
127 | } |
128 | ||
08e1fe76 | 129 | static const char *igmpmsgtype2str[IGMPMSG_WRVIFWHOLE + 1] = { |
d62a17ae | 130 | "<unknown_upcall?>", "NOCACHE", "WRONGVIF", "WHOLEPKT", "WRVIFWHOLE"}; |
131 | ||
132 | static int pim_mroute_msg_nocache(int fd, struct interface *ifp, | |
133 | const struct igmpmsg *msg) | |
12e41d03 | 134 | { |
d62a17ae | 135 | struct pim_interface *pim_ifp = ifp->info; |
136 | struct pim_upstream *up; | |
137 | struct pim_rpf *rpg; | |
138 | struct prefix_sg sg; | |
139 | ||
fec883d9 | 140 | rpg = RP(pim_ifp->pim, msg->im_dst); |
d62a17ae | 141 | /* |
142 | * If the incoming interface is unknown OR | |
143 | * the Interface type is SSM we don't need to | |
144 | * do anything here | |
145 | */ | |
146 | if ((pim_rpf_addr_is_inaddr_none(rpg)) || (!pim_ifp) | |
147 | || (!(PIM_I_am_DR(pim_ifp)))) { | |
148 | if (PIM_DEBUG_MROUTE_DETAIL) | |
149 | zlog_debug( | |
150 | "%s: Interface is not configured correctly to handle incoming packet: Could be !DR, !pim_ifp, !SM, !RP", | |
151 | __PRETTY_FUNCTION__); | |
152 | return 0; | |
153 | } | |
04b40f02 | 154 | |
d62a17ae | 155 | /* |
156 | * If we've received a multicast packet that isn't connected to | |
157 | * us | |
158 | */ | |
159 | if (!pim_if_connected_to_source(ifp, msg->im_src)) { | |
160 | if (PIM_DEBUG_MROUTE_DETAIL) | |
161 | zlog_debug( | |
162 | "%s: Received incoming packet that doesn't originate on our seg", | |
163 | __PRETTY_FUNCTION__); | |
164 | return 0; | |
165 | } | |
065bee4b | 166 | |
d62a17ae | 167 | memset(&sg, 0, sizeof(struct prefix_sg)); |
168 | sg.src = msg->im_src; | |
169 | sg.grp = msg->im_dst; | |
170 | ||
171 | up = pim_upstream_find_or_add(&sg, ifp, PIM_UPSTREAM_FLAG_MASK_FHR, | |
172 | __PRETTY_FUNCTION__); | |
173 | if (!up) { | |
174 | if (PIM_DEBUG_MROUTE) { | |
175 | zlog_debug( | |
176 | "%s: Failure to add upstream information for %s", | |
177 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg)); | |
178 | } | |
179 | return 0; | |
180 | } | |
c29a5806 | 181 | |
d62a17ae | 182 | /* |
183 | * I moved this debug till after the actual add because | |
184 | * I want to take advantage of the up->sg_str being filled in. | |
185 | */ | |
186 | if (PIM_DEBUG_MROUTE) { | |
187 | zlog_debug("%s: Adding a Route %s for WHOLEPKT consumption", | |
188 | __PRETTY_FUNCTION__, up->sg_str); | |
189 | } | |
8bfb8b67 | 190 | |
d62a17ae | 191 | PIM_UPSTREAM_FLAG_SET_SRC_STREAM(up->flags); |
192 | pim_upstream_keep_alive_timer_start(up, qpim_keep_alive_time); | |
193 | ||
194 | up->channel_oil->cc.pktcnt++; | |
195 | PIM_UPSTREAM_FLAG_SET_FHR(up->flags); | |
196 | // resolve mfcc_parent prior to mroute_add in channel_add_oif | |
197 | if (up->channel_oil->oil.mfcc_parent >= MAXVIFS) { | |
198 | int vif_index = 0; | |
199 | vif_index = pim_if_find_vifindex_by_ifindex( | |
7cfc7bcf | 200 | pim_ifp->pim, |
d62a17ae | 201 | up->rpf.source_nexthop.interface->ifindex); |
202 | up->channel_oil->oil.mfcc_parent = vif_index; | |
203 | } | |
204 | pim_register_join(up); | |
59471fb8 | 205 | |
d62a17ae | 206 | return 0; |
e355e30f | 207 | } |
12e41d03 | 208 | |
d62a17ae | 209 | static int pim_mroute_msg_wholepkt(int fd, struct interface *ifp, |
210 | const char *buf) | |
e355e30f | 211 | { |
d62a17ae | 212 | struct pim_interface *pim_ifp; |
213 | struct prefix_sg sg; | |
214 | struct pim_rpf *rpg; | |
215 | const struct ip *ip_hdr; | |
216 | struct pim_upstream *up; | |
217 | ||
9b29ea95 DS |
218 | pim_ifp = ifp->info; |
219 | ||
d62a17ae | 220 | ip_hdr = (const struct ip *)buf; |
221 | ||
222 | memset(&sg, 0, sizeof(struct prefix_sg)); | |
223 | sg.src = ip_hdr->ip_src; | |
224 | sg.grp = ip_hdr->ip_dst; | |
225 | ||
9b29ea95 | 226 | up = pim_upstream_find(pim_ifp->pim, &sg); |
d62a17ae | 227 | if (!up) { |
228 | struct prefix_sg star = sg; | |
229 | star.src.s_addr = INADDR_ANY; | |
230 | ||
9b29ea95 | 231 | up = pim_upstream_find(pim_ifp->pim, &star); |
d62a17ae | 232 | |
233 | if (up && PIM_UPSTREAM_FLAG_TEST_SRC_IGMP(up->flags)) { | |
234 | up = pim_upstream_add(&sg, ifp, | |
235 | PIM_UPSTREAM_FLAG_MASK_SRC_LHR, | |
236 | __PRETTY_FUNCTION__); | |
237 | if (!up) { | |
238 | if (PIM_DEBUG_MROUTE) | |
239 | zlog_debug( | |
240 | "%s: Unable to create upstream information for %s", | |
241 | __PRETTY_FUNCTION__, | |
242 | pim_str_sg_dump(&sg)); | |
243 | return 0; | |
244 | } | |
245 | pim_upstream_keep_alive_timer_start( | |
246 | up, qpim_keep_alive_time); | |
9b29ea95 | 247 | pim_upstream_inherited_olist(pim_ifp->pim, up); |
d62a17ae | 248 | pim_upstream_switch(up, PIM_UPSTREAM_JOINED); |
249 | ||
250 | if (PIM_DEBUG_MROUTE) | |
251 | zlog_debug("%s: Creating %s upstream on LHR", | |
252 | __PRETTY_FUNCTION__, up->sg_str); | |
253 | return 0; | |
254 | } | |
255 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
256 | zlog_debug( | |
257 | "%s: Unable to find upstream channel WHOLEPKT%s", | |
258 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg)); | |
259 | } | |
260 | return 0; | |
261 | } | |
59471fb8 | 262 | |
d62a17ae | 263 | pim_ifp = up->rpf.source_nexthop.interface->info; |
998af219 | 264 | |
fec883d9 | 265 | rpg = RP(pim_ifp->pim, sg.grp); |
c8ae3ce8 | 266 | |
d62a17ae | 267 | if ((pim_rpf_addr_is_inaddr_none(rpg)) || (!pim_ifp) |
268 | || (!(PIM_I_am_DR(pim_ifp)))) { | |
269 | if (PIM_DEBUG_MROUTE) { | |
270 | zlog_debug("%s: Failed Check send packet", | |
271 | __PRETTY_FUNCTION__); | |
272 | } | |
273 | return 0; | |
274 | } | |
84366c7e | 275 | |
d62a17ae | 276 | /* |
277 | * If we've received a register suppress | |
278 | */ | |
279 | if (!up->t_rs_timer) { | |
6f439a70 | 280 | if (pim_is_grp_ssm(pim_ifp->pim, sg.grp)) { |
d62a17ae | 281 | if (PIM_DEBUG_PIM_REG) |
282 | zlog_debug( | |
283 | "%s register forward skipped as group is SSM", | |
284 | pim_str_sg_dump(&sg)); | |
285 | return 0; | |
286 | } | |
287 | pim_register_send((uint8_t *)buf + sizeof(struct ip), | |
288 | ntohs(ip_hdr->ip_len) - sizeof(struct ip), | |
289 | pim_ifp->primary_address, rpg, 0, up); | |
290 | } | |
291 | return 0; | |
e355e30f | 292 | } |
12e41d03 | 293 | |
d62a17ae | 294 | static int pim_mroute_msg_wrongvif(int fd, struct interface *ifp, |
295 | const struct igmpmsg *msg) | |
e355e30f | 296 | { |
d62a17ae | 297 | struct pim_ifchannel *ch; |
298 | struct pim_interface *pim_ifp; | |
299 | struct prefix_sg sg; | |
300 | ||
301 | memset(&sg, 0, sizeof(struct prefix_sg)); | |
302 | sg.src = msg->im_src; | |
303 | sg.grp = msg->im_dst; | |
304 | ||
305 | /* | |
306 | Send Assert(S,G) on iif as response to WRONGVIF kernel upcall. | |
307 | ||
308 | RFC 4601 4.8.2. PIM-SSM-Only Routers | |
309 | ||
310 | iif is the incoming interface of the packet. | |
311 | if (iif is in inherited_olist(S,G)) { | |
312 | send Assert(S,G) on iif | |
313 | } | |
314 | */ | |
315 | ||
316 | if (!ifp) { | |
317 | if (PIM_DEBUG_MROUTE) | |
318 | zlog_debug( | |
319 | "%s: WRONGVIF (S,G)=%s could not find input interface for input_vif_index=%d", | |
320 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
321 | msg->im_vif); | |
322 | return -1; | |
323 | } | |
12e41d03 | 324 | |
d62a17ae | 325 | pim_ifp = ifp->info; |
326 | if (!pim_ifp) { | |
327 | if (PIM_DEBUG_MROUTE) | |
328 | zlog_debug( | |
329 | "%s: WRONGVIF (S,G)=%s multicast not enabled on interface %s", | |
330 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
331 | ifp->name); | |
332 | return -2; | |
333 | } | |
c29a5806 | 334 | |
d62a17ae | 335 | ch = pim_ifchannel_find(ifp, &sg); |
336 | if (!ch) { | |
337 | struct prefix_sg star_g = sg; | |
338 | if (PIM_DEBUG_MROUTE) | |
339 | zlog_debug( | |
340 | "%s: WRONGVIF (S,G)=%s could not find channel on interface %s", | |
341 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
342 | ifp->name); | |
343 | ||
344 | star_g.src.s_addr = INADDR_ANY; | |
345 | ch = pim_ifchannel_find(ifp, &star_g); | |
346 | if (!ch) { | |
347 | if (PIM_DEBUG_MROUTE) | |
348 | zlog_debug( | |
349 | "%s: WRONGVIF (*,G)=%s could not find channel on interface %s", | |
350 | __PRETTY_FUNCTION__, | |
351 | pim_str_sg_dump(&star_g), ifp->name); | |
352 | return -3; | |
353 | } | |
354 | } | |
12e41d03 | 355 | |
d62a17ae | 356 | /* |
357 | RFC 4601: 4.6.1. (S,G) Assert Message State Machine | |
358 | ||
359 | Transitions from NoInfo State | |
360 | ||
361 | An (S,G) data packet arrives on interface I, AND | |
362 | CouldAssert(S,G,I)==TRUE An (S,G) data packet arrived on an | |
363 | downstream interface that is in our (S,G) outgoing interface | |
364 | list. We optimistically assume that we will be the assert | |
365 | winner for this (S,G), and so we transition to the "I am Assert | |
366 | Winner" state and perform Actions A1 (below), which will | |
367 | initiate the assert negotiation for (S,G). | |
368 | */ | |
369 | ||
370 | if (ch->ifassert_state != PIM_IFASSERT_NOINFO) { | |
371 | if (PIM_DEBUG_MROUTE) { | |
372 | zlog_debug( | |
373 | "%s: WRONGVIF (S,G)=%s channel is not on Assert NoInfo state for interface %s", | |
374 | __PRETTY_FUNCTION__, ch->sg_str, ifp->name); | |
375 | } | |
376 | return -4; | |
377 | } | |
e355e30f | 378 | |
d62a17ae | 379 | if (!PIM_IF_FLAG_TEST_COULD_ASSERT(ch->flags)) { |
380 | if (PIM_DEBUG_MROUTE) { | |
381 | zlog_debug( | |
382 | "%s: WRONGVIF (S,G)=%s interface %s is not downstream for channel", | |
383 | __PRETTY_FUNCTION__, ch->sg_str, ifp->name); | |
384 | } | |
385 | return -5; | |
386 | } | |
387 | ||
388 | if (assert_action_a1(ch)) { | |
389 | if (PIM_DEBUG_MROUTE) { | |
390 | zlog_debug( | |
391 | "%s: WRONGVIF (S,G)=%s assert_action_a1 failure on interface %s", | |
392 | __PRETTY_FUNCTION__, ch->sg_str, ifp->name); | |
393 | } | |
394 | return -6; | |
395 | } | |
e355e30f | 396 | |
d62a17ae | 397 | return 0; |
e355e30f DS |
398 | } |
399 | ||
d62a17ae | 400 | static int pim_mroute_msg_wrvifwhole(int fd, struct interface *ifp, |
401 | const char *buf) | |
08e1fe76 | 402 | { |
d62a17ae | 403 | const struct ip *ip_hdr = (const struct ip *)buf; |
404 | struct pim_interface *pim_ifp; | |
405 | struct pim_ifchannel *ch; | |
406 | struct pim_upstream *up; | |
407 | struct prefix_sg star_g; | |
408 | struct prefix_sg sg; | |
409 | struct channel_oil *oil; | |
410 | ||
fec883d9 DS |
411 | pim_ifp = ifp->info; |
412 | ||
d62a17ae | 413 | memset(&sg, 0, sizeof(struct prefix_sg)); |
414 | sg.src = ip_hdr->ip_src; | |
415 | sg.grp = ip_hdr->ip_dst; | |
416 | ||
417 | ch = pim_ifchannel_find(ifp, &sg); | |
418 | if (ch) { | |
419 | if (PIM_DEBUG_MROUTE) | |
420 | zlog_debug( | |
421 | "WRVIFWHOLE (S,G)=%s found ifchannel on interface %s", | |
422 | ch->sg_str, ifp->name); | |
423 | return -1; | |
424 | } | |
b7ddd2ec | 425 | |
d62a17ae | 426 | star_g = sg; |
427 | star_g.src.s_addr = INADDR_ANY; | |
b7ddd2ec | 428 | #if 0 |
0490c22d DS |
429 | ch = pim_ifchannel_find(ifp, &star_g); |
430 | if (ch) | |
431 | { | |
432 | if (PIM_DEBUG_MROUTE) | |
433 | zlog_debug ("WRVIFWHOLE (*,G)=%s found ifchannel on interface %s", | |
434 | pim_str_sg_dump (&star_g), ifp->name); | |
435 | return -1; | |
436 | } | |
5cd11e3c | 437 | #endif |
08e1fe76 | 438 | |
9b29ea95 | 439 | up = pim_upstream_find(pim_ifp->pim, &sg); |
d62a17ae | 440 | if (up) { |
441 | struct pim_upstream *parent; | |
442 | struct pim_nexthop source; | |
fec883d9 | 443 | struct pim_rpf *rpf = RP(pim_ifp->pim, sg.grp); |
d62a17ae | 444 | if (!rpf || !rpf->source_nexthop.interface) |
445 | return 0; | |
446 | ||
447 | /* | |
448 | * If we have received a WRVIFWHOLE and are at this | |
449 | * point, we could be receiving the packet on the *,G | |
450 | * tree, let's check and if so we can safely drop | |
451 | * it. | |
452 | */ | |
9b29ea95 | 453 | parent = pim_upstream_find(pim_ifp->pim, &star_g); |
d62a17ae | 454 | if (parent && parent->rpf.source_nexthop.interface == ifp) |
455 | return 0; | |
456 | ||
457 | pim_ifp = rpf->source_nexthop.interface->info; | |
458 | ||
459 | memset(&source, 0, sizeof(source)); | |
460 | /* | |
461 | * If we are the fhr that means we are getting a callback during | |
462 | * the pimreg period, so I believe we can ignore this packet | |
463 | */ | |
464 | if (!PIM_UPSTREAM_FLAG_TEST_FHR(up->flags)) { | |
465 | // No if channel, but upstream we are at the RP. | |
d9c9a9ee DS |
466 | if (pim_nexthop_lookup(pim_ifp->pim, &source, |
467 | up->upstream_register, 0) | |
d62a17ae | 468 | == 0) |
469 | pim_register_stop_send(source.interface, &sg, | |
470 | pim_ifp->primary_address, | |
471 | up->upstream_register); | |
472 | if (!up->channel_oil) | |
473 | up->channel_oil = pim_channel_oil_add( | |
611925dc DS |
474 | pim_ifp->pim, &sg, |
475 | pim_ifp->mroute_vif_index); | |
9b29ea95 | 476 | pim_upstream_inherited_olist(pim_ifp->pim, up); |
d62a17ae | 477 | if (!up->channel_oil->installed) |
478 | pim_mroute_add(up->channel_oil, | |
479 | __PRETTY_FUNCTION__); | |
480 | pim_upstream_set_sptbit(up, ifp); | |
481 | } else { | |
d9c9a9ee DS |
482 | if (I_am_RP(pim_ifp->pim, up->sg.grp)) { |
483 | if (pim_nexthop_lookup(pim_ifp->pim, &source, | |
d62a17ae | 484 | up->upstream_register, 0) |
485 | == 0) | |
486 | pim_register_stop_send( | |
487 | source.interface, &sg, | |
488 | pim_ifp->primary_address, | |
489 | up->upstream_register); | |
490 | up->sptbit = PIM_UPSTREAM_SPTBIT_TRUE; | |
491 | } | |
492 | pim_upstream_keep_alive_timer_start( | |
493 | up, qpim_keep_alive_time); | |
9b29ea95 | 494 | pim_upstream_inherited_olist(pim_ifp->pim, up); |
d62a17ae | 495 | pim_mroute_msg_wholepkt(fd, ifp, buf); |
496 | } | |
497 | return 0; | |
498 | } | |
8e38a2cf | 499 | |
d62a17ae | 500 | pim_ifp = ifp->info; |
611925dc | 501 | oil = pim_channel_oil_add(pim_ifp->pim, &sg, pim_ifp->mroute_vif_index); |
d62a17ae | 502 | if (!oil->installed) |
503 | pim_mroute_add(oil, __PRETTY_FUNCTION__); | |
504 | if (pim_if_connected_to_source(ifp, sg.src)) { | |
505 | up = pim_upstream_add(&sg, ifp, PIM_UPSTREAM_FLAG_MASK_FHR, | |
506 | __PRETTY_FUNCTION__); | |
507 | if (!up) { | |
508 | if (PIM_DEBUG_MROUTE) | |
509 | zlog_debug( | |
510 | "%s: WRONGVIF%s unable to create upstream on interface", | |
511 | pim_str_sg_dump(&sg), ifp->name); | |
512 | return -2; | |
513 | } | |
514 | PIM_UPSTREAM_FLAG_SET_SRC_STREAM(up->flags); | |
515 | pim_upstream_keep_alive_timer_start(up, qpim_keep_alive_time); | |
516 | up->channel_oil = oil; | |
517 | up->channel_oil->cc.pktcnt++; | |
518 | pim_register_join(up); | |
9b29ea95 | 519 | pim_upstream_inherited_olist(pim_ifp->pim, up); |
d62a17ae | 520 | |
521 | // Send the packet to the RP | |
522 | pim_mroute_msg_wholepkt(fd, ifp, buf); | |
523 | } | |
08e1fe76 | 524 | |
d62a17ae | 525 | return 0; |
08e1fe76 DS |
526 | } |
527 | ||
405d6357 DS |
528 | static int pim_mroute_msg(struct pim_instance *pim, const char *buf, |
529 | int buf_size) | |
e355e30f | 530 | { |
d62a17ae | 531 | struct interface *ifp; |
532 | struct pim_interface *pim_ifp; | |
533 | const struct ip *ip_hdr; | |
534 | const struct igmpmsg *msg; | |
535 | char ip_src_str[INET_ADDRSTRLEN] = ""; | |
536 | char ip_dst_str[INET_ADDRSTRLEN] = ""; | |
537 | char src_str[INET_ADDRSTRLEN] = "<src?>"; | |
538 | char grp_str[INET_ADDRSTRLEN] = "<grp?>"; | |
539 | struct in_addr ifaddr; | |
540 | struct igmp_sock *igmp; | |
541 | ||
542 | ip_hdr = (const struct ip *)buf; | |
543 | ||
544 | if (ip_hdr->ip_p == IPPROTO_IGMP) { | |
545 | ||
546 | /* We have the IP packet but we do not know which interface this | |
547 | * packet was | |
548 | * received on. Find the interface that is on the same subnet as | |
549 | * the source | |
550 | * of the IP packet. | |
551 | */ | |
405d6357 | 552 | ifp = pim_if_lookup_address_vrf(ip_hdr->ip_src, pim->vrf_id); |
d62a17ae | 553 | |
554 | if (!ifp) { | |
555 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
556 | pim_inet4_dump("<src?>", ip_hdr->ip_src, | |
557 | ip_src_str, sizeof(ip_src_str)); | |
558 | pim_inet4_dump("<dst?>", ip_hdr->ip_dst, | |
559 | ip_dst_str, sizeof(ip_dst_str)); | |
560 | ||
561 | zlog_warn( | |
562 | "%s: igmp kernel upcall could not find usable interface for %s -> %s", | |
563 | __PRETTY_FUNCTION__, ip_src_str, | |
564 | ip_dst_str); | |
565 | } | |
566 | return 0; | |
567 | } | |
568 | pim_ifp = ifp->info; | |
569 | ifaddr = pim_find_primary_addr(ifp); | |
570 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, | |
571 | ifaddr); | |
572 | ||
573 | if (PIM_DEBUG_MROUTE) { | |
574 | pim_inet4_dump("<src?>", ip_hdr->ip_src, ip_src_str, | |
575 | sizeof(ip_src_str)); | |
576 | pim_inet4_dump("<dst?>", ip_hdr->ip_dst, ip_dst_str, | |
577 | sizeof(ip_dst_str)); | |
578 | ||
579 | zlog_warn( | |
580 | "%s: igmp kernel upcall on %s(%p) for %s -> %s", | |
581 | __PRETTY_FUNCTION__, ifp->name, igmp, | |
582 | ip_src_str, ip_dst_str); | |
583 | } | |
584 | if (igmp) | |
585 | pim_igmp_packet(igmp, (char *)buf, buf_size); | |
586 | ||
587 | } else if (ip_hdr->ip_p) { | |
588 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
589 | pim_inet4_dump("<src?>", ip_hdr->ip_src, src_str, | |
590 | sizeof(src_str)); | |
591 | pim_inet4_dump("<grp?>", ip_hdr->ip_dst, grp_str, | |
592 | sizeof(grp_str)); | |
593 | zlog_debug( | |
594 | "%s: no kernel upcall proto=%d src: %s dst: %s msg_size=%d", | |
595 | __PRETTY_FUNCTION__, ip_hdr->ip_p, src_str, | |
596 | grp_str, buf_size); | |
597 | } | |
598 | ||
599 | } else { | |
600 | msg = (const struct igmpmsg *)buf; | |
601 | ||
7cfc7bcf | 602 | ifp = pim_if_find_by_vif_index(pim, msg->im_vif); |
d62a17ae | 603 | |
604 | if (!ifp) | |
605 | return 0; | |
606 | if (PIM_DEBUG_MROUTE) { | |
607 | pim_inet4_dump("<src?>", msg->im_src, src_str, | |
608 | sizeof(src_str)); | |
609 | pim_inet4_dump("<grp?>", msg->im_dst, grp_str, | |
610 | sizeof(grp_str)); | |
611 | zlog_warn( | |
612 | "%s: pim kernel upcall %s type=%d ip_p=%d from fd=%d for (S,G)=(%s,%s) on %s vifi=%d size=%d", | |
613 | __PRETTY_FUNCTION__, | |
614 | igmpmsgtype2str[msg->im_msgtype], | |
405d6357 DS |
615 | msg->im_msgtype, ip_hdr->ip_p, |
616 | pim->mroute_socket, src_str, grp_str, ifp->name, | |
617 | msg->im_vif, buf_size); | |
d62a17ae | 618 | } |
619 | ||
620 | switch (msg->im_msgtype) { | |
621 | case IGMPMSG_WRONGVIF: | |
405d6357 DS |
622 | return pim_mroute_msg_wrongvif(pim->mroute_socket, ifp, |
623 | msg); | |
d62a17ae | 624 | break; |
625 | case IGMPMSG_NOCACHE: | |
405d6357 DS |
626 | return pim_mroute_msg_nocache(pim->mroute_socket, ifp, |
627 | msg); | |
d62a17ae | 628 | break; |
629 | case IGMPMSG_WHOLEPKT: | |
405d6357 | 630 | return pim_mroute_msg_wholepkt(pim->mroute_socket, ifp, |
d62a17ae | 631 | (const char *)msg); |
632 | break; | |
633 | case IGMPMSG_WRVIFWHOLE: | |
405d6357 DS |
634 | return pim_mroute_msg_wrvifwhole( |
635 | pim->mroute_socket, ifp, (const char *)msg); | |
d62a17ae | 636 | break; |
637 | default: | |
638 | break; | |
639 | } | |
640 | } | |
12e41d03 | 641 | |
d62a17ae | 642 | return 0; |
12e41d03 DL |
643 | } |
644 | ||
12e41d03 DL |
645 | static int mroute_read(struct thread *t) |
646 | { | |
8ea5d944 | 647 | struct pim_instance *pim; |
d62a17ae | 648 | static long long count; |
649 | char buf[10000]; | |
650 | int result = 0; | |
651 | int cont = 1; | |
d62a17ae | 652 | int rd; |
653 | ||
8ea5d944 | 654 | pim = THREAD_ARG(t); |
d62a17ae | 655 | |
656 | while (cont) { | |
8ea5d944 | 657 | rd = read(pim->mroute_socket, buf, sizeof(buf)); |
61e99c94 | 658 | if (rd <= 0) { |
d62a17ae | 659 | if (errno == EINTR) |
660 | continue; | |
661 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
662 | break; | |
663 | ||
664 | if (PIM_DEBUG_MROUTE) | |
665 | zlog_warn( | |
61e99c94 | 666 | "%s: failure reading rd=%d: fd=%d: errno=%d: %s", |
8ea5d944 DS |
667 | __PRETTY_FUNCTION__, rd, |
668 | pim->mroute_socket, errno, | |
d62a17ae | 669 | safe_strerror(errno)); |
670 | goto done; | |
671 | } | |
672 | ||
405d6357 | 673 | result = pim_mroute_msg(pim, buf, rd); |
d62a17ae | 674 | |
675 | count++; | |
676 | if (count % qpim_packet_process == 0) | |
677 | cont = 0; | |
678 | } | |
679 | /* Keep reading */ | |
680 | done: | |
8ea5d944 | 681 | mroute_read_on(pim); |
12e41d03 | 682 | |
d62a17ae | 683 | return result; |
12e41d03 DL |
684 | } |
685 | ||
8ea5d944 | 686 | static void mroute_read_on(struct pim_instance *pim) |
12e41d03 | 687 | { |
f509d941 | 688 | thread_add_read(master, mroute_read, pim, pim->mroute_socket, |
8ea5d944 | 689 | &pim->thread); |
12e41d03 DL |
690 | } |
691 | ||
8ea5d944 | 692 | static void mroute_read_off(struct pim_instance *pim) |
12e41d03 | 693 | { |
8ea5d944 | 694 | THREAD_OFF(pim->thread); |
12e41d03 DL |
695 | } |
696 | ||
6beed987 | 697 | int pim_mroute_socket_enable(struct pim_instance *pim) |
12e41d03 | 698 | { |
d62a17ae | 699 | int fd; |
12e41d03 | 700 | |
d62a17ae | 701 | if (pimd_privs.change(ZPRIVS_RAISE)) |
702 | zlog_err("pim_mroute_socket_enable: could not raise privs, %s", | |
703 | safe_strerror(errno)); | |
12e41d03 | 704 | |
d62a17ae | 705 | fd = socket(AF_INET, SOCK_RAW, IPPROTO_IGMP); |
12e41d03 | 706 | |
d62a17ae | 707 | if (pimd_privs.change(ZPRIVS_LOWER)) |
708 | zlog_err("pim_mroute_socket_enable: could not lower privs, %s", | |
709 | safe_strerror(errno)); | |
12e41d03 | 710 | |
d62a17ae | 711 | if (fd < 0) { |
712 | zlog_warn("Could not create mroute socket: errno=%d: %s", errno, | |
713 | safe_strerror(errno)); | |
714 | return -2; | |
715 | } | |
12e41d03 | 716 | |
cdbfaec5 DS |
717 | pim->mroute_socket = fd; |
718 | if (pim_mroute_set(pim, 1)) { | |
d62a17ae | 719 | zlog_warn( |
720 | "Could not enable mroute on socket fd=%d: errno=%d: %s", | |
721 | fd, errno, safe_strerror(errno)); | |
722 | close(fd); | |
cdbfaec5 | 723 | pim->mroute_socket = -1; |
d62a17ae | 724 | return -3; |
725 | } | |
12e41d03 | 726 | |
6beed987 | 727 | pim->mroute_socket_creation = pim_time_monotonic_sec(); |
b45cefcb | 728 | |
8ea5d944 | 729 | mroute_read_on(pim); |
12e41d03 | 730 | |
d62a17ae | 731 | return 0; |
12e41d03 DL |
732 | } |
733 | ||
6beed987 | 734 | int pim_mroute_socket_disable(struct pim_instance *pim) |
12e41d03 | 735 | { |
cdbfaec5 | 736 | if (pim_mroute_set(pim, 0)) { |
d62a17ae | 737 | zlog_warn( |
738 | "Could not disable mroute on socket fd=%d: errno=%d: %s", | |
405d6357 | 739 | pim->mroute_socket, errno, safe_strerror(errno)); |
d62a17ae | 740 | return -2; |
741 | } | |
742 | ||
6beed987 | 743 | if (close(pim->mroute_socket)) { |
d62a17ae | 744 | zlog_warn("Failure closing mroute socket: fd=%d errno=%d: %s", |
405d6357 | 745 | pim->mroute_socket, errno, safe_strerror(errno)); |
d62a17ae | 746 | return -3; |
747 | } | |
748 | ||
8ea5d944 | 749 | mroute_read_off(pim); |
6beed987 | 750 | pim->mroute_socket = -1; |
d62a17ae | 751 | |
752 | return 0; | |
12e41d03 DL |
753 | } |
754 | ||
755 | /* | |
756 | For each network interface (e.g., physical or a virtual tunnel) that | |
757 | would be used for multicast forwarding, a corresponding multicast | |
758 | interface must be added to the kernel. | |
759 | */ | |
d62a17ae | 760 | int pim_mroute_add_vif(struct interface *ifp, struct in_addr ifaddr, |
761 | unsigned char flags) | |
12e41d03 | 762 | { |
d62a17ae | 763 | struct pim_interface *pim_ifp = ifp->info; |
764 | struct vifctl vc; | |
765 | int err; | |
12e41d03 | 766 | |
d62a17ae | 767 | memset(&vc, 0, sizeof(vc)); |
768 | vc.vifc_vifi = pim_ifp->mroute_vif_index; | |
b3f2bf7c | 769 | #ifdef VIFF_USE_IFINDEX |
d62a17ae | 770 | vc.vifc_lcl_ifindex = ifp->ifindex; |
b3f2bf7c | 771 | #else |
d62a17ae | 772 | if (ifaddr.s_addr == INADDR_ANY) { |
773 | zlog_warn( | |
774 | "%s: unnumbered interfaces are not supported on this platform", | |
775 | __PRETTY_FUNCTION__); | |
776 | return -1; | |
777 | } | |
778 | memcpy(&vc.vifc_lcl_addr, &ifaddr, sizeof(vc.vifc_lcl_addr)); | |
b3f2bf7c | 779 | #endif |
d62a17ae | 780 | vc.vifc_flags = flags; |
781 | vc.vifc_threshold = PIM_MROUTE_MIN_TTL; | |
782 | vc.vifc_rate_limit = 0; | |
783 | ||
784 | #ifdef PIM_DVMRP_TUNNEL | |
785 | if (vc.vifc_flags & VIFF_TUNNEL) { | |
786 | memcpy(&vc.vifc_rmt_addr, &vif_remote_addr, | |
787 | sizeof(vc.vifc_rmt_addr)); | |
788 | } | |
12e41d03 DL |
789 | #endif |
790 | ||
ea3d967b | 791 | err = setsockopt(pim_ifp->pim->mroute_socket, IPPROTO_IP, MRT_ADD_VIF, |
d62a17ae | 792 | (void *)&vc, sizeof(vc)); |
793 | if (err) { | |
794 | char ifaddr_str[INET_ADDRSTRLEN]; | |
12e41d03 | 795 | |
d62a17ae | 796 | pim_inet4_dump("<ifaddr?>", ifaddr, ifaddr_str, |
797 | sizeof(ifaddr_str)); | |
12e41d03 | 798 | |
d62a17ae | 799 | zlog_warn( |
800 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_ADD_VIF,vif_index=%d,ifaddr=%s,flag=%d): errno=%d: %s", | |
ea3d967b DS |
801 | __FILE__, __PRETTY_FUNCTION__, |
802 | pim_ifp->pim->mroute_socket, ifp->ifindex, ifaddr_str, | |
803 | flags, errno, safe_strerror(errno)); | |
d62a17ae | 804 | return -2; |
805 | } | |
12e41d03 | 806 | |
d62a17ae | 807 | return 0; |
12e41d03 DL |
808 | } |
809 | ||
ea3d967b | 810 | int pim_mroute_del_vif(struct interface *ifp) |
12e41d03 | 811 | { |
ea3d967b | 812 | struct pim_interface *pim_ifp = ifp->info; |
d62a17ae | 813 | struct vifctl vc; |
814 | int err; | |
815 | ||
ea3d967b | 816 | if (PIM_DEBUG_MROUTE) |
d62a17ae | 817 | zlog_debug("%s %s: Del Vif %d (%s) ", __FILE__, |
ea3d967b DS |
818 | __PRETTY_FUNCTION__, pim_ifp->mroute_vif_index, |
819 | ifp->name); | |
12e41d03 | 820 | |
d62a17ae | 821 | memset(&vc, 0, sizeof(vc)); |
ea3d967b | 822 | vc.vifc_vifi = pim_ifp->mroute_vif_index; |
d62a17ae | 823 | |
ea3d967b | 824 | err = setsockopt(pim_ifp->pim->mroute_socket, IPPROTO_IP, MRT_DEL_VIF, |
d62a17ae | 825 | (void *)&vc, sizeof(vc)); |
826 | if (err) { | |
827 | zlog_warn( | |
828 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_DEL_VIF,vif_index=%d): errno=%d: %s", | |
ea3d967b DS |
829 | __FILE__, __PRETTY_FUNCTION__, |
830 | pim_ifp->pim->mroute_socket, pim_ifp->mroute_vif_index, | |
831 | errno, safe_strerror(errno)); | |
d62a17ae | 832 | return -2; |
833 | } | |
12e41d03 | 834 | |
d62a17ae | 835 | return 0; |
12e41d03 DL |
836 | } |
837 | ||
6a78764e | 838 | int pim_mroute_add(struct channel_oil *c_oil, const char *name) |
12e41d03 | 839 | { |
9a0f71c9 | 840 | struct pim_instance *pim = c_oil->pim; |
d62a17ae | 841 | int err; |
842 | int orig = 0; | |
843 | int orig_iif_vif = 0; | |
844 | ||
856e863f DS |
845 | pim->mroute_add_last = pim_time_monotonic_sec(); |
846 | ++pim->mroute_add_events; | |
d62a17ae | 847 | |
848 | /* Do not install route if incoming interface is undefined. */ | |
849 | if (c_oil->oil.mfcc_parent >= MAXVIFS) { | |
850 | if (PIM_DEBUG_MROUTE) { | |
851 | char buf[1000]; | |
852 | zlog_debug( | |
853 | "%s(%s) %s Attempting to add vifi that is invalid to mroute table", | |
854 | __PRETTY_FUNCTION__, name, | |
855 | pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
856 | } | |
857 | return -2; | |
858 | } | |
d3aded99 | 859 | |
d62a17ae | 860 | /* The linux kernel *expects* the incoming |
861 | * vif to be part of the outgoing list | |
862 | * in the case of a (*,G). | |
863 | */ | |
864 | if (c_oil->oil.mfcc_origin.s_addr == INADDR_ANY) { | |
865 | orig = c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent]; | |
866 | c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent] = 1; | |
867 | } | |
d3aded99 | 868 | |
d62a17ae | 869 | /* |
870 | * If we have an unresolved cache entry for the S,G | |
871 | * it is owned by the pimreg for the incoming IIF | |
872 | * So set pimreg as the IIF temporarily to cause | |
873 | * the packets to be forwarded. Then set it | |
874 | * to the correct IIF afterwords. | |
875 | */ | |
876 | if (!c_oil->installed && c_oil->oil.mfcc_origin.s_addr != INADDR_ANY | |
877 | && c_oil->oil.mfcc_parent != 0) { | |
878 | orig_iif_vif = c_oil->oil.mfcc_parent; | |
879 | c_oil->oil.mfcc_parent = 0; | |
880 | } | |
856e863f | 881 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, MRT_ADD_MFC, |
d62a17ae | 882 | &c_oil->oil, sizeof(c_oil->oil)); |
883 | ||
884 | if (!err && !c_oil->installed | |
885 | && c_oil->oil.mfcc_origin.s_addr != INADDR_ANY | |
886 | && orig_iif_vif != 0) { | |
887 | c_oil->oil.mfcc_parent = orig_iif_vif; | |
856e863f | 888 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, MRT_ADD_MFC, |
d62a17ae | 889 | &c_oil->oil, sizeof(c_oil->oil)); |
890 | } | |
0365f56b | 891 | |
d62a17ae | 892 | if (c_oil->oil.mfcc_origin.s_addr == INADDR_ANY) |
893 | c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent] = orig; | |
d3aded99 | 894 | |
d62a17ae | 895 | if (err) { |
896 | zlog_warn( | |
897 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_ADD_MFC): errno=%d: %s", | |
856e863f | 898 | __FILE__, __PRETTY_FUNCTION__, pim->mroute_socket, |
d62a17ae | 899 | errno, safe_strerror(errno)); |
900 | return -2; | |
901 | } | |
12e41d03 | 902 | |
d62a17ae | 903 | if (PIM_DEBUG_MROUTE) { |
904 | char buf[1000]; | |
905 | zlog_debug("%s(%s), Added Route: %s", __PRETTY_FUNCTION__, name, | |
906 | pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
907 | } | |
6a78764e | 908 | |
d62a17ae | 909 | c_oil->installed = 1; |
910 | return 0; | |
12e41d03 DL |
911 | } |
912 | ||
d62a17ae | 913 | int pim_mroute_del(struct channel_oil *c_oil, const char *name) |
12e41d03 | 914 | { |
9a0f71c9 | 915 | struct pim_instance *pim = c_oil->pim; |
d62a17ae | 916 | int err; |
917 | ||
856e863f DS |
918 | pim->mroute_del_last = pim_time_monotonic_sec(); |
919 | ++pim->mroute_del_events; | |
d62a17ae | 920 | |
921 | if (!c_oil->installed) { | |
922 | if (PIM_DEBUG_MROUTE) { | |
923 | char buf[1000]; | |
924 | zlog_debug( | |
925 | "%s %s: vifi %d for route is %s not installed, do not need to send del req. ", | |
926 | __FILE__, __PRETTY_FUNCTION__, | |
927 | c_oil->oil.mfcc_parent, | |
928 | pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
929 | } | |
930 | return -2; | |
931 | } | |
12e41d03 | 932 | |
856e863f | 933 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, MRT_DEL_MFC, |
d62a17ae | 934 | &c_oil->oil, sizeof(c_oil->oil)); |
935 | if (err) { | |
936 | if (PIM_DEBUG_MROUTE) | |
937 | zlog_warn( | |
938 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_DEL_MFC): errno=%d: %s", | |
939 | __FILE__, __PRETTY_FUNCTION__, | |
856e863f | 940 | pim->mroute_socket, errno, |
d62a17ae | 941 | safe_strerror(errno)); |
942 | return -2; | |
943 | } | |
429a291b | 944 | |
d62a17ae | 945 | if (PIM_DEBUG_MROUTE) { |
946 | char buf[1000]; | |
947 | zlog_debug("%s(%s), Deleted Route: %s", __PRETTY_FUNCTION__, | |
948 | name, pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
949 | } | |
781a1745 | 950 | |
d62a17ae | 951 | // Reset kernel installed flag |
952 | c_oil->installed = 0; | |
58302dc7 | 953 | |
d62a17ae | 954 | return 0; |
12e41d03 | 955 | } |
3667e8a0 | 956 | |
d62a17ae | 957 | void pim_mroute_update_counters(struct channel_oil *c_oil) |
3667e8a0 | 958 | { |
9a0f71c9 | 959 | struct pim_instance *pim = c_oil->pim; |
d62a17ae | 960 | struct sioc_sg_req sgreq; |
961 | ||
962 | c_oil->cc.oldpktcnt = c_oil->cc.pktcnt; | |
963 | c_oil->cc.oldbytecnt = c_oil->cc.bytecnt; | |
964 | c_oil->cc.oldwrong_if = c_oil->cc.wrong_if; | |
965 | ||
966 | if (!c_oil->installed) { | |
967 | c_oil->cc.lastused = 100 * qpim_keep_alive_time; | |
968 | if (PIM_DEBUG_MROUTE) { | |
969 | struct prefix_sg sg; | |
970 | ||
971 | sg.src = c_oil->oil.mfcc_origin; | |
972 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
973 | if (PIM_DEBUG_MROUTE) | |
974 | zlog_debug( | |
975 | "Channel(%s) is not installed no need to collect data from kernel", | |
976 | pim_str_sg_dump(&sg)); | |
977 | } | |
978 | return; | |
c7b1183f | 979 | } |
c7b1183f | 980 | |
d62a17ae | 981 | memset(&sgreq, 0, sizeof(sgreq)); |
982 | sgreq.src = c_oil->oil.mfcc_origin; | |
983 | sgreq.grp = c_oil->oil.mfcc_mcastgrp; | |
984 | ||
985 | pim_zlookup_sg_statistics(c_oil); | |
856e863f | 986 | if (ioctl(pim->mroute_socket, SIOCGETSGCNT, &sgreq)) { |
d62a17ae | 987 | if (PIM_DEBUG_MROUTE) { |
988 | struct prefix_sg sg; | |
989 | ||
990 | sg.src = c_oil->oil.mfcc_origin; | |
991 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
992 | ||
993 | zlog_warn( | |
994 | "ioctl(SIOCGETSGCNT=%lu) failure for (S,G)=(%s): errno=%d: %s", | |
995 | (unsigned long)SIOCGETSGCNT, | |
996 | pim_str_sg_dump(&sg), errno, | |
997 | safe_strerror(errno)); | |
998 | } | |
999 | return; | |
c7b1183f | 1000 | } |
3667e8a0 | 1001 | |
d62a17ae | 1002 | c_oil->cc.pktcnt = sgreq.pktcnt; |
1003 | c_oil->cc.bytecnt = sgreq.bytecnt; | |
1004 | c_oil->cc.wrong_if = sgreq.wrong_if; | |
3667e8a0 | 1005 | |
d62a17ae | 1006 | return; |
3667e8a0 | 1007 | } |