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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" |
2002dcdb | 43 | #include "pim_sock.h" |
12e41d03 | 44 | |
8ea5d944 | 45 | static void mroute_read_on(struct pim_instance *pim); |
12e41d03 | 46 | |
cdbfaec5 | 47 | static int pim_mroute_set(struct pim_instance *pim, int enable) |
12e41d03 | 48 | { |
d62a17ae | 49 | int err; |
f507c196 | 50 | int opt; |
d62a17ae | 51 | socklen_t opt_len = sizeof(opt); |
d62a17ae | 52 | long flags; |
53 | ||
cdbfaec5 DS |
54 | /* |
55 | * We need to create the VRF table for the pim mroute_socket | |
56 | */ | |
57 | if (pim->vrf_id != VRF_DEFAULT) { | |
f507c196 DS |
58 | if (pimd_privs.change(ZPRIVS_RAISE)) |
59 | zlog_err( | |
60 | "pim_mroute_socket_enable: could not raise privs, %s", | |
61 | safe_strerror(errno)); | |
62 | ||
44a1bd88 | 63 | opt = pim->vrf->data.l.table_id; |
cdbfaec5 DS |
64 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, MRT_TABLE, |
65 | &opt, opt_len); | |
66 | if (err) { | |
67 | zlog_warn( | |
68 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP, MRT_TABLE=%d): errno=%d: %s", | |
69 | __FILE__, __PRETTY_FUNCTION__, | |
70 | pim->mroute_socket, opt, errno, | |
71 | safe_strerror(errno)); | |
72 | return -1; | |
73 | } | |
f507c196 DS |
74 | |
75 | if (pimd_privs.change(ZPRIVS_LOWER)) | |
76 | zlog_err( | |
77 | "pim_mroute_socket_enable: could not lower privs, %s", | |
78 | safe_strerror(errno)); | |
79 | } | |
80 | ||
81 | opt = enable ? MRT_INIT : MRT_DONE; | |
82 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, opt, &opt, opt_len); | |
83 | if (err) { | |
84 | zlog_warn( | |
85 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,%s=%d): errno=%d: %s", | |
86 | __FILE__, __PRETTY_FUNCTION__, pim->mroute_socket, | |
87 | enable ? "MRT_INIT" : "MRT_DONE", opt, errno, | |
88 | safe_strerror(errno)); | |
89 | return -1; | |
cdbfaec5 DS |
90 | } |
91 | ||
92 | setsockopt_so_recvbuf(pim->mroute_socket, 1024 * 1024 * 8); | |
d62a17ae | 93 | |
cdbfaec5 | 94 | flags = fcntl(pim->mroute_socket, F_GETFL, 0); |
d62a17ae | 95 | if (flags < 0) { |
cdbfaec5 DS |
96 | zlog_warn("Could not get flags on socket fd:%d %d %s", |
97 | pim->mroute_socket, errno, safe_strerror(errno)); | |
98 | close(pim->mroute_socket); | |
d62a17ae | 99 | return -1; |
100 | } | |
cdbfaec5 DS |
101 | if (fcntl(pim->mroute_socket, F_SETFL, flags | O_NONBLOCK)) { |
102 | zlog_warn("Could not set O_NONBLOCK on socket fd:%d %d %s", | |
103 | pim->mroute_socket, errno, safe_strerror(errno)); | |
104 | close(pim->mroute_socket); | |
d62a17ae | 105 | return -1; |
106 | } | |
107 | ||
108 | if (enable) { | |
77b7d90b | 109 | #if defined linux |
d62a17ae | 110 | int upcalls = IGMPMSG_WRVIFWHOLE; |
111 | opt = MRT_PIM; | |
112 | ||
cdbfaec5 | 113 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, opt, &upcalls, |
d62a17ae | 114 | sizeof(upcalls)); |
115 | if (err) { | |
116 | zlog_warn( | |
117 | "Failure to register for VIFWHOLE and WRONGVIF upcalls %d %s", | |
118 | errno, safe_strerror(errno)); | |
119 | return -1; | |
120 | } | |
77b7d90b | 121 | #else |
d62a17ae | 122 | zlog_warn( |
123 | "PIM-SM will not work properly on this platform, until the ability to receive the WRVIFWHOLE upcall"); | |
77b7d90b | 124 | #endif |
d62a17ae | 125 | } |
126 | ||
127 | return 0; | |
12e41d03 DL |
128 | } |
129 | ||
08e1fe76 | 130 | static const char *igmpmsgtype2str[IGMPMSG_WRVIFWHOLE + 1] = { |
d62a17ae | 131 | "<unknown_upcall?>", "NOCACHE", "WRONGVIF", "WHOLEPKT", "WRVIFWHOLE"}; |
132 | ||
133 | static int pim_mroute_msg_nocache(int fd, struct interface *ifp, | |
134 | const struct igmpmsg *msg) | |
12e41d03 | 135 | { |
d62a17ae | 136 | struct pim_interface *pim_ifp = ifp->info; |
137 | struct pim_upstream *up; | |
138 | struct pim_rpf *rpg; | |
139 | struct prefix_sg sg; | |
140 | ||
fec883d9 | 141 | rpg = RP(pim_ifp->pim, msg->im_dst); |
d62a17ae | 142 | /* |
143 | * If the incoming interface is unknown OR | |
144 | * the Interface type is SSM we don't need to | |
145 | * do anything here | |
146 | */ | |
147 | if ((pim_rpf_addr_is_inaddr_none(rpg)) || (!pim_ifp) | |
148 | || (!(PIM_I_am_DR(pim_ifp)))) { | |
149 | if (PIM_DEBUG_MROUTE_DETAIL) | |
150 | zlog_debug( | |
151 | "%s: Interface is not configured correctly to handle incoming packet: Could be !DR, !pim_ifp, !SM, !RP", | |
152 | __PRETTY_FUNCTION__); | |
153 | return 0; | |
154 | } | |
04b40f02 | 155 | |
d62a17ae | 156 | /* |
157 | * If we've received a multicast packet that isn't connected to | |
158 | * us | |
159 | */ | |
160 | if (!pim_if_connected_to_source(ifp, msg->im_src)) { | |
161 | if (PIM_DEBUG_MROUTE_DETAIL) | |
162 | zlog_debug( | |
163 | "%s: Received incoming packet that doesn't originate on our seg", | |
164 | __PRETTY_FUNCTION__); | |
165 | return 0; | |
166 | } | |
065bee4b | 167 | |
d62a17ae | 168 | memset(&sg, 0, sizeof(struct prefix_sg)); |
169 | sg.src = msg->im_src; | |
170 | sg.grp = msg->im_dst; | |
171 | ||
172 | up = pim_upstream_find_or_add(&sg, ifp, PIM_UPSTREAM_FLAG_MASK_FHR, | |
173 | __PRETTY_FUNCTION__); | |
174 | if (!up) { | |
175 | if (PIM_DEBUG_MROUTE) { | |
176 | zlog_debug( | |
177 | "%s: Failure to add upstream information for %s", | |
178 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg)); | |
179 | } | |
180 | return 0; | |
181 | } | |
c29a5806 | 182 | |
d62a17ae | 183 | /* |
184 | * I moved this debug till after the actual add because | |
185 | * I want to take advantage of the up->sg_str being filled in. | |
186 | */ | |
187 | if (PIM_DEBUG_MROUTE) { | |
188 | zlog_debug("%s: Adding a Route %s for WHOLEPKT consumption", | |
189 | __PRETTY_FUNCTION__, up->sg_str); | |
190 | } | |
8bfb8b67 | 191 | |
d62a17ae | 192 | PIM_UPSTREAM_FLAG_SET_SRC_STREAM(up->flags); |
193 | pim_upstream_keep_alive_timer_start(up, qpim_keep_alive_time); | |
194 | ||
195 | up->channel_oil->cc.pktcnt++; | |
196 | PIM_UPSTREAM_FLAG_SET_FHR(up->flags); | |
197 | // resolve mfcc_parent prior to mroute_add in channel_add_oif | |
198 | if (up->channel_oil->oil.mfcc_parent >= MAXVIFS) { | |
199 | int vif_index = 0; | |
200 | vif_index = pim_if_find_vifindex_by_ifindex( | |
7cfc7bcf | 201 | pim_ifp->pim, |
d62a17ae | 202 | up->rpf.source_nexthop.interface->ifindex); |
203 | up->channel_oil->oil.mfcc_parent = vif_index; | |
204 | } | |
205 | pim_register_join(up); | |
59471fb8 | 206 | |
d62a17ae | 207 | return 0; |
e355e30f | 208 | } |
12e41d03 | 209 | |
d62a17ae | 210 | static int pim_mroute_msg_wholepkt(int fd, struct interface *ifp, |
211 | const char *buf) | |
e355e30f | 212 | { |
d62a17ae | 213 | struct pim_interface *pim_ifp; |
214 | struct prefix_sg sg; | |
215 | struct pim_rpf *rpg; | |
216 | const struct ip *ip_hdr; | |
217 | struct pim_upstream *up; | |
218 | ||
9b29ea95 DS |
219 | pim_ifp = ifp->info; |
220 | ||
d62a17ae | 221 | ip_hdr = (const struct ip *)buf; |
222 | ||
223 | memset(&sg, 0, sizeof(struct prefix_sg)); | |
224 | sg.src = ip_hdr->ip_src; | |
225 | sg.grp = ip_hdr->ip_dst; | |
226 | ||
9b29ea95 | 227 | up = pim_upstream_find(pim_ifp->pim, &sg); |
d62a17ae | 228 | if (!up) { |
229 | struct prefix_sg star = sg; | |
230 | star.src.s_addr = INADDR_ANY; | |
231 | ||
9b29ea95 | 232 | up = pim_upstream_find(pim_ifp->pim, &star); |
d62a17ae | 233 | |
234 | if (up && PIM_UPSTREAM_FLAG_TEST_SRC_IGMP(up->flags)) { | |
2002dcdb | 235 | up = pim_upstream_add(pim_ifp->pim, &sg, ifp, |
d62a17ae | 236 | PIM_UPSTREAM_FLAG_MASK_SRC_LHR, |
237 | __PRETTY_FUNCTION__); | |
238 | if (!up) { | |
239 | if (PIM_DEBUG_MROUTE) | |
240 | zlog_debug( | |
241 | "%s: Unable to create upstream information for %s", | |
242 | __PRETTY_FUNCTION__, | |
243 | pim_str_sg_dump(&sg)); | |
244 | return 0; | |
245 | } | |
246 | pim_upstream_keep_alive_timer_start( | |
247 | up, qpim_keep_alive_time); | |
9b29ea95 | 248 | pim_upstream_inherited_olist(pim_ifp->pim, up); |
1eca8576 DS |
249 | pim_upstream_switch(pim_ifp->pim, up, |
250 | PIM_UPSTREAM_JOINED); | |
d62a17ae | 251 | |
252 | if (PIM_DEBUG_MROUTE) | |
253 | zlog_debug("%s: Creating %s upstream on LHR", | |
254 | __PRETTY_FUNCTION__, up->sg_str); | |
255 | return 0; | |
256 | } | |
257 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
258 | zlog_debug( | |
259 | "%s: Unable to find upstream channel WHOLEPKT%s", | |
260 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg)); | |
261 | } | |
262 | return 0; | |
263 | } | |
59471fb8 | 264 | |
d62a17ae | 265 | pim_ifp = up->rpf.source_nexthop.interface->info; |
998af219 | 266 | |
fec883d9 | 267 | rpg = RP(pim_ifp->pim, sg.grp); |
c8ae3ce8 | 268 | |
d62a17ae | 269 | if ((pim_rpf_addr_is_inaddr_none(rpg)) || (!pim_ifp) |
270 | || (!(PIM_I_am_DR(pim_ifp)))) { | |
271 | if (PIM_DEBUG_MROUTE) { | |
272 | zlog_debug("%s: Failed Check send packet", | |
273 | __PRETTY_FUNCTION__); | |
274 | } | |
275 | return 0; | |
276 | } | |
84366c7e | 277 | |
d62a17ae | 278 | /* |
279 | * If we've received a register suppress | |
280 | */ | |
281 | if (!up->t_rs_timer) { | |
6f439a70 | 282 | if (pim_is_grp_ssm(pim_ifp->pim, sg.grp)) { |
d62a17ae | 283 | if (PIM_DEBUG_PIM_REG) |
284 | zlog_debug( | |
285 | "%s register forward skipped as group is SSM", | |
286 | pim_str_sg_dump(&sg)); | |
287 | return 0; | |
288 | } | |
289 | pim_register_send((uint8_t *)buf + sizeof(struct ip), | |
290 | ntohs(ip_hdr->ip_len) - sizeof(struct ip), | |
291 | pim_ifp->primary_address, rpg, 0, up); | |
292 | } | |
293 | return 0; | |
e355e30f | 294 | } |
12e41d03 | 295 | |
d62a17ae | 296 | static int pim_mroute_msg_wrongvif(int fd, struct interface *ifp, |
297 | const struct igmpmsg *msg) | |
e355e30f | 298 | { |
d62a17ae | 299 | struct pim_ifchannel *ch; |
300 | struct pim_interface *pim_ifp; | |
301 | struct prefix_sg sg; | |
302 | ||
303 | memset(&sg, 0, sizeof(struct prefix_sg)); | |
304 | sg.src = msg->im_src; | |
305 | sg.grp = msg->im_dst; | |
306 | ||
307 | /* | |
308 | Send Assert(S,G) on iif as response to WRONGVIF kernel upcall. | |
309 | ||
310 | RFC 4601 4.8.2. PIM-SSM-Only Routers | |
311 | ||
312 | iif is the incoming interface of the packet. | |
313 | if (iif is in inherited_olist(S,G)) { | |
314 | send Assert(S,G) on iif | |
315 | } | |
316 | */ | |
317 | ||
318 | if (!ifp) { | |
319 | if (PIM_DEBUG_MROUTE) | |
320 | zlog_debug( | |
321 | "%s: WRONGVIF (S,G)=%s could not find input interface for input_vif_index=%d", | |
322 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
323 | msg->im_vif); | |
324 | return -1; | |
325 | } | |
12e41d03 | 326 | |
d62a17ae | 327 | pim_ifp = ifp->info; |
328 | if (!pim_ifp) { | |
329 | if (PIM_DEBUG_MROUTE) | |
330 | zlog_debug( | |
331 | "%s: WRONGVIF (S,G)=%s multicast not enabled on interface %s", | |
332 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
333 | ifp->name); | |
334 | return -2; | |
335 | } | |
c29a5806 | 336 | |
d62a17ae | 337 | ch = pim_ifchannel_find(ifp, &sg); |
338 | if (!ch) { | |
339 | struct prefix_sg star_g = sg; | |
340 | if (PIM_DEBUG_MROUTE) | |
341 | zlog_debug( | |
342 | "%s: WRONGVIF (S,G)=%s could not find channel on interface %s", | |
343 | __PRETTY_FUNCTION__, pim_str_sg_dump(&sg), | |
344 | ifp->name); | |
345 | ||
346 | star_g.src.s_addr = INADDR_ANY; | |
347 | ch = pim_ifchannel_find(ifp, &star_g); | |
348 | if (!ch) { | |
349 | if (PIM_DEBUG_MROUTE) | |
350 | zlog_debug( | |
351 | "%s: WRONGVIF (*,G)=%s could not find channel on interface %s", | |
352 | __PRETTY_FUNCTION__, | |
353 | pim_str_sg_dump(&star_g), ifp->name); | |
354 | return -3; | |
355 | } | |
356 | } | |
12e41d03 | 357 | |
d62a17ae | 358 | /* |
359 | RFC 4601: 4.6.1. (S,G) Assert Message State Machine | |
360 | ||
361 | Transitions from NoInfo State | |
362 | ||
363 | An (S,G) data packet arrives on interface I, AND | |
364 | CouldAssert(S,G,I)==TRUE An (S,G) data packet arrived on an | |
365 | downstream interface that is in our (S,G) outgoing interface | |
366 | list. We optimistically assume that we will be the assert | |
367 | winner for this (S,G), and so we transition to the "I am Assert | |
368 | Winner" state and perform Actions A1 (below), which will | |
369 | initiate the assert negotiation for (S,G). | |
370 | */ | |
371 | ||
372 | if (ch->ifassert_state != PIM_IFASSERT_NOINFO) { | |
373 | if (PIM_DEBUG_MROUTE) { | |
374 | zlog_debug( | |
375 | "%s: WRONGVIF (S,G)=%s channel is not on Assert NoInfo state for interface %s", | |
376 | __PRETTY_FUNCTION__, ch->sg_str, ifp->name); | |
377 | } | |
378 | return -4; | |
379 | } | |
e355e30f | 380 | |
d62a17ae | 381 | if (!PIM_IF_FLAG_TEST_COULD_ASSERT(ch->flags)) { |
382 | if (PIM_DEBUG_MROUTE) { | |
383 | zlog_debug( | |
384 | "%s: WRONGVIF (S,G)=%s interface %s is not downstream for channel", | |
385 | __PRETTY_FUNCTION__, ch->sg_str, ifp->name); | |
386 | } | |
387 | return -5; | |
388 | } | |
389 | ||
390 | if (assert_action_a1(ch)) { | |
391 | if (PIM_DEBUG_MROUTE) { | |
392 | zlog_debug( | |
393 | "%s: WRONGVIF (S,G)=%s assert_action_a1 failure on interface %s", | |
394 | __PRETTY_FUNCTION__, ch->sg_str, ifp->name); | |
395 | } | |
396 | return -6; | |
397 | } | |
e355e30f | 398 | |
d62a17ae | 399 | return 0; |
e355e30f DS |
400 | } |
401 | ||
d62a17ae | 402 | static int pim_mroute_msg_wrvifwhole(int fd, struct interface *ifp, |
403 | const char *buf) | |
08e1fe76 | 404 | { |
d62a17ae | 405 | const struct ip *ip_hdr = (const struct ip *)buf; |
406 | struct pim_interface *pim_ifp; | |
407 | struct pim_ifchannel *ch; | |
408 | struct pim_upstream *up; | |
409 | struct prefix_sg star_g; | |
410 | struct prefix_sg sg; | |
411 | struct channel_oil *oil; | |
412 | ||
fec883d9 DS |
413 | pim_ifp = ifp->info; |
414 | ||
d62a17ae | 415 | memset(&sg, 0, sizeof(struct prefix_sg)); |
416 | sg.src = ip_hdr->ip_src; | |
417 | sg.grp = ip_hdr->ip_dst; | |
418 | ||
419 | ch = pim_ifchannel_find(ifp, &sg); | |
420 | if (ch) { | |
421 | if (PIM_DEBUG_MROUTE) | |
422 | zlog_debug( | |
423 | "WRVIFWHOLE (S,G)=%s found ifchannel on interface %s", | |
424 | ch->sg_str, ifp->name); | |
425 | return -1; | |
426 | } | |
b7ddd2ec | 427 | |
d62a17ae | 428 | star_g = sg; |
429 | star_g.src.s_addr = INADDR_ANY; | |
b7ddd2ec | 430 | #if 0 |
0490c22d DS |
431 | ch = pim_ifchannel_find(ifp, &star_g); |
432 | if (ch) | |
433 | { | |
434 | if (PIM_DEBUG_MROUTE) | |
435 | zlog_debug ("WRVIFWHOLE (*,G)=%s found ifchannel on interface %s", | |
436 | pim_str_sg_dump (&star_g), ifp->name); | |
437 | return -1; | |
438 | } | |
5cd11e3c | 439 | #endif |
08e1fe76 | 440 | |
9b29ea95 | 441 | up = pim_upstream_find(pim_ifp->pim, &sg); |
d62a17ae | 442 | if (up) { |
443 | struct pim_upstream *parent; | |
444 | struct pim_nexthop source; | |
fec883d9 | 445 | struct pim_rpf *rpf = RP(pim_ifp->pim, sg.grp); |
d62a17ae | 446 | if (!rpf || !rpf->source_nexthop.interface) |
447 | return 0; | |
448 | ||
449 | /* | |
450 | * If we have received a WRVIFWHOLE and are at this | |
451 | * point, we could be receiving the packet on the *,G | |
452 | * tree, let's check and if so we can safely drop | |
453 | * it. | |
454 | */ | |
9b29ea95 | 455 | parent = pim_upstream_find(pim_ifp->pim, &star_g); |
d62a17ae | 456 | if (parent && parent->rpf.source_nexthop.interface == ifp) |
457 | return 0; | |
458 | ||
459 | pim_ifp = rpf->source_nexthop.interface->info; | |
460 | ||
461 | memset(&source, 0, sizeof(source)); | |
462 | /* | |
463 | * If we are the fhr that means we are getting a callback during | |
464 | * the pimreg period, so I believe we can ignore this packet | |
465 | */ | |
466 | if (!PIM_UPSTREAM_FLAG_TEST_FHR(up->flags)) { | |
467 | // No if channel, but upstream we are at the RP. | |
d9c9a9ee DS |
468 | if (pim_nexthop_lookup(pim_ifp->pim, &source, |
469 | up->upstream_register, 0) | |
d62a17ae | 470 | == 0) |
471 | pim_register_stop_send(source.interface, &sg, | |
472 | pim_ifp->primary_address, | |
473 | up->upstream_register); | |
474 | if (!up->channel_oil) | |
475 | up->channel_oil = pim_channel_oil_add( | |
611925dc DS |
476 | pim_ifp->pim, &sg, |
477 | pim_ifp->mroute_vif_index); | |
9b29ea95 | 478 | pim_upstream_inherited_olist(pim_ifp->pim, up); |
d62a17ae | 479 | if (!up->channel_oil->installed) |
480 | pim_mroute_add(up->channel_oil, | |
481 | __PRETTY_FUNCTION__); | |
482 | pim_upstream_set_sptbit(up, ifp); | |
483 | } else { | |
d9c9a9ee DS |
484 | if (I_am_RP(pim_ifp->pim, up->sg.grp)) { |
485 | if (pim_nexthop_lookup(pim_ifp->pim, &source, | |
d62a17ae | 486 | up->upstream_register, 0) |
487 | == 0) | |
488 | pim_register_stop_send( | |
489 | source.interface, &sg, | |
490 | pim_ifp->primary_address, | |
491 | up->upstream_register); | |
492 | up->sptbit = PIM_UPSTREAM_SPTBIT_TRUE; | |
493 | } | |
494 | pim_upstream_keep_alive_timer_start( | |
495 | up, qpim_keep_alive_time); | |
9b29ea95 | 496 | pim_upstream_inherited_olist(pim_ifp->pim, up); |
d62a17ae | 497 | pim_mroute_msg_wholepkt(fd, ifp, buf); |
498 | } | |
499 | return 0; | |
500 | } | |
8e38a2cf | 501 | |
d62a17ae | 502 | pim_ifp = ifp->info; |
611925dc | 503 | oil = pim_channel_oil_add(pim_ifp->pim, &sg, pim_ifp->mroute_vif_index); |
d62a17ae | 504 | if (!oil->installed) |
505 | pim_mroute_add(oil, __PRETTY_FUNCTION__); | |
506 | if (pim_if_connected_to_source(ifp, sg.src)) { | |
2002dcdb DS |
507 | up = pim_upstream_add(pim_ifp->pim, &sg, ifp, |
508 | PIM_UPSTREAM_FLAG_MASK_FHR, | |
d62a17ae | 509 | __PRETTY_FUNCTION__); |
510 | if (!up) { | |
511 | if (PIM_DEBUG_MROUTE) | |
512 | zlog_debug( | |
513 | "%s: WRONGVIF%s unable to create upstream on interface", | |
514 | pim_str_sg_dump(&sg), ifp->name); | |
515 | return -2; | |
516 | } | |
517 | PIM_UPSTREAM_FLAG_SET_SRC_STREAM(up->flags); | |
518 | pim_upstream_keep_alive_timer_start(up, qpim_keep_alive_time); | |
519 | up->channel_oil = oil; | |
520 | up->channel_oil->cc.pktcnt++; | |
521 | pim_register_join(up); | |
9b29ea95 | 522 | pim_upstream_inherited_olist(pim_ifp->pim, up); |
d62a17ae | 523 | |
524 | // Send the packet to the RP | |
525 | pim_mroute_msg_wholepkt(fd, ifp, buf); | |
526 | } | |
08e1fe76 | 527 | |
d62a17ae | 528 | return 0; |
08e1fe76 DS |
529 | } |
530 | ||
405d6357 DS |
531 | static int pim_mroute_msg(struct pim_instance *pim, const char *buf, |
532 | int buf_size) | |
e355e30f | 533 | { |
d62a17ae | 534 | struct interface *ifp; |
535 | struct pim_interface *pim_ifp; | |
536 | const struct ip *ip_hdr; | |
537 | const struct igmpmsg *msg; | |
538 | char ip_src_str[INET_ADDRSTRLEN] = ""; | |
539 | char ip_dst_str[INET_ADDRSTRLEN] = ""; | |
540 | char src_str[INET_ADDRSTRLEN] = "<src?>"; | |
541 | char grp_str[INET_ADDRSTRLEN] = "<grp?>"; | |
542 | struct in_addr ifaddr; | |
543 | struct igmp_sock *igmp; | |
544 | ||
545 | ip_hdr = (const struct ip *)buf; | |
546 | ||
547 | if (ip_hdr->ip_p == IPPROTO_IGMP) { | |
548 | ||
549 | /* We have the IP packet but we do not know which interface this | |
550 | * packet was | |
551 | * received on. Find the interface that is on the same subnet as | |
552 | * the source | |
553 | * of the IP packet. | |
554 | */ | |
405d6357 | 555 | ifp = pim_if_lookup_address_vrf(ip_hdr->ip_src, pim->vrf_id); |
d62a17ae | 556 | |
557 | if (!ifp) { | |
558 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
559 | pim_inet4_dump("<src?>", ip_hdr->ip_src, | |
560 | ip_src_str, sizeof(ip_src_str)); | |
561 | pim_inet4_dump("<dst?>", ip_hdr->ip_dst, | |
562 | ip_dst_str, sizeof(ip_dst_str)); | |
563 | ||
564 | zlog_warn( | |
7c2bfc2a DS |
565 | "%s(%s): igmp kernel upcall could not find usable interface for %s -> %s", |
566 | __PRETTY_FUNCTION__, pim->vrf->name, | |
567 | ip_src_str, ip_dst_str); | |
d62a17ae | 568 | } |
569 | return 0; | |
570 | } | |
571 | pim_ifp = ifp->info; | |
572 | ifaddr = pim_find_primary_addr(ifp); | |
573 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, | |
574 | ifaddr); | |
575 | ||
576 | if (PIM_DEBUG_MROUTE) { | |
577 | pim_inet4_dump("<src?>", ip_hdr->ip_src, ip_src_str, | |
578 | sizeof(ip_src_str)); | |
579 | pim_inet4_dump("<dst?>", ip_hdr->ip_dst, ip_dst_str, | |
580 | sizeof(ip_dst_str)); | |
581 | ||
582 | zlog_warn( | |
7c2bfc2a DS |
583 | "%s(%s): igmp kernel upcall on %s(%p) for %s -> %s", |
584 | __PRETTY_FUNCTION__, pim->vrf->name, ifp->name, | |
585 | igmp, ip_src_str, ip_dst_str); | |
d62a17ae | 586 | } |
587 | if (igmp) | |
588 | pim_igmp_packet(igmp, (char *)buf, buf_size); | |
589 | ||
590 | } else if (ip_hdr->ip_p) { | |
591 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
592 | pim_inet4_dump("<src?>", ip_hdr->ip_src, src_str, | |
593 | sizeof(src_str)); | |
594 | pim_inet4_dump("<grp?>", ip_hdr->ip_dst, grp_str, | |
595 | sizeof(grp_str)); | |
596 | zlog_debug( | |
597 | "%s: no kernel upcall proto=%d src: %s dst: %s msg_size=%d", | |
598 | __PRETTY_FUNCTION__, ip_hdr->ip_p, src_str, | |
599 | grp_str, buf_size); | |
600 | } | |
601 | ||
602 | } else { | |
603 | msg = (const struct igmpmsg *)buf; | |
604 | ||
7cfc7bcf | 605 | ifp = pim_if_find_by_vif_index(pim, msg->im_vif); |
d62a17ae | 606 | |
607 | if (!ifp) | |
608 | return 0; | |
609 | if (PIM_DEBUG_MROUTE) { | |
610 | pim_inet4_dump("<src?>", msg->im_src, src_str, | |
611 | sizeof(src_str)); | |
612 | pim_inet4_dump("<grp?>", msg->im_dst, grp_str, | |
613 | sizeof(grp_str)); | |
614 | zlog_warn( | |
615 | "%s: pim kernel upcall %s type=%d ip_p=%d from fd=%d for (S,G)=(%s,%s) on %s vifi=%d size=%d", | |
616 | __PRETTY_FUNCTION__, | |
617 | igmpmsgtype2str[msg->im_msgtype], | |
405d6357 DS |
618 | msg->im_msgtype, ip_hdr->ip_p, |
619 | pim->mroute_socket, src_str, grp_str, ifp->name, | |
620 | msg->im_vif, buf_size); | |
d62a17ae | 621 | } |
622 | ||
623 | switch (msg->im_msgtype) { | |
624 | case IGMPMSG_WRONGVIF: | |
405d6357 DS |
625 | return pim_mroute_msg_wrongvif(pim->mroute_socket, ifp, |
626 | msg); | |
d62a17ae | 627 | break; |
628 | case IGMPMSG_NOCACHE: | |
405d6357 DS |
629 | return pim_mroute_msg_nocache(pim->mroute_socket, ifp, |
630 | msg); | |
d62a17ae | 631 | break; |
632 | case IGMPMSG_WHOLEPKT: | |
405d6357 | 633 | return pim_mroute_msg_wholepkt(pim->mroute_socket, ifp, |
d62a17ae | 634 | (const char *)msg); |
635 | break; | |
636 | case IGMPMSG_WRVIFWHOLE: | |
405d6357 DS |
637 | return pim_mroute_msg_wrvifwhole( |
638 | pim->mroute_socket, ifp, (const char *)msg); | |
d62a17ae | 639 | break; |
640 | default: | |
641 | break; | |
642 | } | |
643 | } | |
12e41d03 | 644 | |
d62a17ae | 645 | return 0; |
12e41d03 DL |
646 | } |
647 | ||
12e41d03 DL |
648 | static int mroute_read(struct thread *t) |
649 | { | |
8ea5d944 | 650 | struct pim_instance *pim; |
d62a17ae | 651 | static long long count; |
652 | char buf[10000]; | |
653 | int result = 0; | |
654 | int cont = 1; | |
d62a17ae | 655 | int rd; |
656 | ||
8ea5d944 | 657 | pim = THREAD_ARG(t); |
d62a17ae | 658 | |
659 | while (cont) { | |
8ea5d944 | 660 | rd = read(pim->mroute_socket, buf, sizeof(buf)); |
61e99c94 | 661 | if (rd <= 0) { |
d62a17ae | 662 | if (errno == EINTR) |
663 | continue; | |
664 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
665 | break; | |
666 | ||
667 | if (PIM_DEBUG_MROUTE) | |
668 | zlog_warn( | |
61e99c94 | 669 | "%s: failure reading rd=%d: fd=%d: errno=%d: %s", |
8ea5d944 DS |
670 | __PRETTY_FUNCTION__, rd, |
671 | pim->mroute_socket, errno, | |
d62a17ae | 672 | safe_strerror(errno)); |
673 | goto done; | |
674 | } | |
675 | ||
405d6357 | 676 | result = pim_mroute_msg(pim, buf, rd); |
d62a17ae | 677 | |
678 | count++; | |
679 | if (count % qpim_packet_process == 0) | |
680 | cont = 0; | |
681 | } | |
682 | /* Keep reading */ | |
683 | done: | |
8ea5d944 | 684 | mroute_read_on(pim); |
12e41d03 | 685 | |
d62a17ae | 686 | return result; |
12e41d03 DL |
687 | } |
688 | ||
8ea5d944 | 689 | static void mroute_read_on(struct pim_instance *pim) |
12e41d03 | 690 | { |
f509d941 | 691 | thread_add_read(master, mroute_read, pim, pim->mroute_socket, |
8ea5d944 | 692 | &pim->thread); |
12e41d03 DL |
693 | } |
694 | ||
8ea5d944 | 695 | static void mroute_read_off(struct pim_instance *pim) |
12e41d03 | 696 | { |
8ea5d944 | 697 | THREAD_OFF(pim->thread); |
12e41d03 DL |
698 | } |
699 | ||
6beed987 | 700 | int pim_mroute_socket_enable(struct pim_instance *pim) |
12e41d03 | 701 | { |
d62a17ae | 702 | int fd; |
12e41d03 | 703 | |
d62a17ae | 704 | if (pimd_privs.change(ZPRIVS_RAISE)) |
705 | zlog_err("pim_mroute_socket_enable: could not raise privs, %s", | |
706 | safe_strerror(errno)); | |
12e41d03 | 707 | |
d62a17ae | 708 | fd = socket(AF_INET, SOCK_RAW, IPPROTO_IGMP); |
12e41d03 | 709 | |
d62a17ae | 710 | if (pimd_privs.change(ZPRIVS_LOWER)) |
711 | zlog_err("pim_mroute_socket_enable: could not lower privs, %s", | |
712 | safe_strerror(errno)); | |
12e41d03 | 713 | |
d62a17ae | 714 | if (fd < 0) { |
715 | zlog_warn("Could not create mroute socket: errno=%d: %s", errno, | |
716 | safe_strerror(errno)); | |
717 | return -2; | |
718 | } | |
12e41d03 | 719 | |
cdbfaec5 DS |
720 | pim->mroute_socket = fd; |
721 | if (pim_mroute_set(pim, 1)) { | |
d62a17ae | 722 | zlog_warn( |
723 | "Could not enable mroute on socket fd=%d: errno=%d: %s", | |
724 | fd, errno, safe_strerror(errno)); | |
725 | close(fd); | |
cdbfaec5 | 726 | pim->mroute_socket = -1; |
d62a17ae | 727 | return -3; |
728 | } | |
12e41d03 | 729 | |
6beed987 | 730 | pim->mroute_socket_creation = pim_time_monotonic_sec(); |
b45cefcb | 731 | |
8ea5d944 | 732 | mroute_read_on(pim); |
12e41d03 | 733 | |
d62a17ae | 734 | return 0; |
12e41d03 DL |
735 | } |
736 | ||
6beed987 | 737 | int pim_mroute_socket_disable(struct pim_instance *pim) |
12e41d03 | 738 | { |
cdbfaec5 | 739 | if (pim_mroute_set(pim, 0)) { |
d62a17ae | 740 | zlog_warn( |
741 | "Could not disable mroute on socket fd=%d: errno=%d: %s", | |
405d6357 | 742 | pim->mroute_socket, errno, safe_strerror(errno)); |
d62a17ae | 743 | return -2; |
744 | } | |
745 | ||
6beed987 | 746 | if (close(pim->mroute_socket)) { |
d62a17ae | 747 | zlog_warn("Failure closing mroute socket: fd=%d errno=%d: %s", |
405d6357 | 748 | pim->mroute_socket, errno, safe_strerror(errno)); |
d62a17ae | 749 | return -3; |
750 | } | |
751 | ||
8ea5d944 | 752 | mroute_read_off(pim); |
6beed987 | 753 | pim->mroute_socket = -1; |
d62a17ae | 754 | |
755 | return 0; | |
12e41d03 DL |
756 | } |
757 | ||
758 | /* | |
759 | For each network interface (e.g., physical or a virtual tunnel) that | |
760 | would be used for multicast forwarding, a corresponding multicast | |
761 | interface must be added to the kernel. | |
762 | */ | |
d62a17ae | 763 | int pim_mroute_add_vif(struct interface *ifp, struct in_addr ifaddr, |
764 | unsigned char flags) | |
12e41d03 | 765 | { |
d62a17ae | 766 | struct pim_interface *pim_ifp = ifp->info; |
767 | struct vifctl vc; | |
768 | int err; | |
12e41d03 | 769 | |
d62a17ae | 770 | memset(&vc, 0, sizeof(vc)); |
771 | vc.vifc_vifi = pim_ifp->mroute_vif_index; | |
b3f2bf7c | 772 | #ifdef VIFF_USE_IFINDEX |
d62a17ae | 773 | vc.vifc_lcl_ifindex = ifp->ifindex; |
b3f2bf7c | 774 | #else |
d62a17ae | 775 | if (ifaddr.s_addr == INADDR_ANY) { |
776 | zlog_warn( | |
777 | "%s: unnumbered interfaces are not supported on this platform", | |
778 | __PRETTY_FUNCTION__); | |
779 | return -1; | |
780 | } | |
781 | memcpy(&vc.vifc_lcl_addr, &ifaddr, sizeof(vc.vifc_lcl_addr)); | |
b3f2bf7c | 782 | #endif |
d62a17ae | 783 | vc.vifc_flags = flags; |
784 | vc.vifc_threshold = PIM_MROUTE_MIN_TTL; | |
785 | vc.vifc_rate_limit = 0; | |
786 | ||
787 | #ifdef PIM_DVMRP_TUNNEL | |
788 | if (vc.vifc_flags & VIFF_TUNNEL) { | |
789 | memcpy(&vc.vifc_rmt_addr, &vif_remote_addr, | |
790 | sizeof(vc.vifc_rmt_addr)); | |
791 | } | |
12e41d03 DL |
792 | #endif |
793 | ||
ea3d967b | 794 | err = setsockopt(pim_ifp->pim->mroute_socket, IPPROTO_IP, MRT_ADD_VIF, |
d62a17ae | 795 | (void *)&vc, sizeof(vc)); |
796 | if (err) { | |
797 | char ifaddr_str[INET_ADDRSTRLEN]; | |
12e41d03 | 798 | |
d62a17ae | 799 | pim_inet4_dump("<ifaddr?>", ifaddr, ifaddr_str, |
800 | sizeof(ifaddr_str)); | |
12e41d03 | 801 | |
d62a17ae | 802 | zlog_warn( |
803 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_ADD_VIF,vif_index=%d,ifaddr=%s,flag=%d): errno=%d: %s", | |
ea3d967b DS |
804 | __FILE__, __PRETTY_FUNCTION__, |
805 | pim_ifp->pim->mroute_socket, ifp->ifindex, ifaddr_str, | |
806 | flags, errno, safe_strerror(errno)); | |
d62a17ae | 807 | return -2; |
808 | } | |
12e41d03 | 809 | |
d62a17ae | 810 | return 0; |
12e41d03 DL |
811 | } |
812 | ||
ea3d967b | 813 | int pim_mroute_del_vif(struct interface *ifp) |
12e41d03 | 814 | { |
ea3d967b | 815 | struct pim_interface *pim_ifp = ifp->info; |
d62a17ae | 816 | struct vifctl vc; |
817 | int err; | |
818 | ||
ea3d967b | 819 | if (PIM_DEBUG_MROUTE) |
d62a17ae | 820 | zlog_debug("%s %s: Del Vif %d (%s) ", __FILE__, |
ea3d967b DS |
821 | __PRETTY_FUNCTION__, pim_ifp->mroute_vif_index, |
822 | ifp->name); | |
12e41d03 | 823 | |
d62a17ae | 824 | memset(&vc, 0, sizeof(vc)); |
ea3d967b | 825 | vc.vifc_vifi = pim_ifp->mroute_vif_index; |
d62a17ae | 826 | |
ea3d967b | 827 | err = setsockopt(pim_ifp->pim->mroute_socket, IPPROTO_IP, MRT_DEL_VIF, |
d62a17ae | 828 | (void *)&vc, sizeof(vc)); |
829 | if (err) { | |
830 | zlog_warn( | |
831 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_DEL_VIF,vif_index=%d): errno=%d: %s", | |
ea3d967b DS |
832 | __FILE__, __PRETTY_FUNCTION__, |
833 | pim_ifp->pim->mroute_socket, pim_ifp->mroute_vif_index, | |
834 | errno, safe_strerror(errno)); | |
d62a17ae | 835 | return -2; |
836 | } | |
12e41d03 | 837 | |
d62a17ae | 838 | return 0; |
12e41d03 DL |
839 | } |
840 | ||
6a78764e | 841 | int pim_mroute_add(struct channel_oil *c_oil, const char *name) |
12e41d03 | 842 | { |
9a0f71c9 | 843 | struct pim_instance *pim = c_oil->pim; |
d62a17ae | 844 | int err; |
845 | int orig = 0; | |
846 | int orig_iif_vif = 0; | |
847 | ||
856e863f DS |
848 | pim->mroute_add_last = pim_time_monotonic_sec(); |
849 | ++pim->mroute_add_events; | |
d62a17ae | 850 | |
851 | /* Do not install route if incoming interface is undefined. */ | |
852 | if (c_oil->oil.mfcc_parent >= MAXVIFS) { | |
853 | if (PIM_DEBUG_MROUTE) { | |
854 | char buf[1000]; | |
855 | zlog_debug( | |
856 | "%s(%s) %s Attempting to add vifi that is invalid to mroute table", | |
857 | __PRETTY_FUNCTION__, name, | |
858 | pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
859 | } | |
860 | return -2; | |
861 | } | |
d3aded99 | 862 | |
d62a17ae | 863 | /* The linux kernel *expects* the incoming |
864 | * vif to be part of the outgoing list | |
865 | * in the case of a (*,G). | |
866 | */ | |
867 | if (c_oil->oil.mfcc_origin.s_addr == INADDR_ANY) { | |
868 | orig = c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent]; | |
869 | c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent] = 1; | |
870 | } | |
d3aded99 | 871 | |
d62a17ae | 872 | /* |
873 | * If we have an unresolved cache entry for the S,G | |
874 | * it is owned by the pimreg for the incoming IIF | |
875 | * So set pimreg as the IIF temporarily to cause | |
876 | * the packets to be forwarded. Then set it | |
877 | * to the correct IIF afterwords. | |
878 | */ | |
879 | if (!c_oil->installed && c_oil->oil.mfcc_origin.s_addr != INADDR_ANY | |
880 | && c_oil->oil.mfcc_parent != 0) { | |
881 | orig_iif_vif = c_oil->oil.mfcc_parent; | |
882 | c_oil->oil.mfcc_parent = 0; | |
883 | } | |
856e863f | 884 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, MRT_ADD_MFC, |
d62a17ae | 885 | &c_oil->oil, sizeof(c_oil->oil)); |
886 | ||
887 | if (!err && !c_oil->installed | |
888 | && c_oil->oil.mfcc_origin.s_addr != INADDR_ANY | |
889 | && orig_iif_vif != 0) { | |
890 | c_oil->oil.mfcc_parent = orig_iif_vif; | |
856e863f | 891 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, MRT_ADD_MFC, |
d62a17ae | 892 | &c_oil->oil, sizeof(c_oil->oil)); |
893 | } | |
0365f56b | 894 | |
d62a17ae | 895 | if (c_oil->oil.mfcc_origin.s_addr == INADDR_ANY) |
896 | c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent] = orig; | |
d3aded99 | 897 | |
d62a17ae | 898 | if (err) { |
899 | zlog_warn( | |
900 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_ADD_MFC): errno=%d: %s", | |
856e863f | 901 | __FILE__, __PRETTY_FUNCTION__, pim->mroute_socket, |
d62a17ae | 902 | errno, safe_strerror(errno)); |
903 | return -2; | |
904 | } | |
12e41d03 | 905 | |
d62a17ae | 906 | if (PIM_DEBUG_MROUTE) { |
907 | char buf[1000]; | |
908 | zlog_debug("%s(%s), Added Route: %s", __PRETTY_FUNCTION__, name, | |
909 | pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
910 | } | |
6a78764e | 911 | |
d62a17ae | 912 | c_oil->installed = 1; |
913 | return 0; | |
12e41d03 DL |
914 | } |
915 | ||
d62a17ae | 916 | int pim_mroute_del(struct channel_oil *c_oil, const char *name) |
12e41d03 | 917 | { |
9a0f71c9 | 918 | struct pim_instance *pim = c_oil->pim; |
d62a17ae | 919 | int err; |
920 | ||
856e863f DS |
921 | pim->mroute_del_last = pim_time_monotonic_sec(); |
922 | ++pim->mroute_del_events; | |
d62a17ae | 923 | |
924 | if (!c_oil->installed) { | |
925 | if (PIM_DEBUG_MROUTE) { | |
926 | char buf[1000]; | |
927 | zlog_debug( | |
928 | "%s %s: vifi %d for route is %s not installed, do not need to send del req. ", | |
929 | __FILE__, __PRETTY_FUNCTION__, | |
930 | c_oil->oil.mfcc_parent, | |
931 | pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
932 | } | |
933 | return -2; | |
934 | } | |
12e41d03 | 935 | |
856e863f | 936 | err = setsockopt(pim->mroute_socket, IPPROTO_IP, MRT_DEL_MFC, |
d62a17ae | 937 | &c_oil->oil, sizeof(c_oil->oil)); |
938 | if (err) { | |
939 | if (PIM_DEBUG_MROUTE) | |
940 | zlog_warn( | |
941 | "%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_DEL_MFC): errno=%d: %s", | |
942 | __FILE__, __PRETTY_FUNCTION__, | |
856e863f | 943 | pim->mroute_socket, errno, |
d62a17ae | 944 | safe_strerror(errno)); |
945 | return -2; | |
946 | } | |
429a291b | 947 | |
d62a17ae | 948 | if (PIM_DEBUG_MROUTE) { |
949 | char buf[1000]; | |
950 | zlog_debug("%s(%s), Deleted Route: %s", __PRETTY_FUNCTION__, | |
951 | name, pim_channel_oil_dump(c_oil, buf, sizeof(buf))); | |
952 | } | |
781a1745 | 953 | |
d62a17ae | 954 | // Reset kernel installed flag |
955 | c_oil->installed = 0; | |
58302dc7 | 956 | |
d62a17ae | 957 | return 0; |
12e41d03 | 958 | } |
3667e8a0 | 959 | |
d62a17ae | 960 | void pim_mroute_update_counters(struct channel_oil *c_oil) |
3667e8a0 | 961 | { |
9a0f71c9 | 962 | struct pim_instance *pim = c_oil->pim; |
d62a17ae | 963 | struct sioc_sg_req sgreq; |
964 | ||
965 | c_oil->cc.oldpktcnt = c_oil->cc.pktcnt; | |
966 | c_oil->cc.oldbytecnt = c_oil->cc.bytecnt; | |
967 | c_oil->cc.oldwrong_if = c_oil->cc.wrong_if; | |
968 | ||
969 | if (!c_oil->installed) { | |
970 | c_oil->cc.lastused = 100 * qpim_keep_alive_time; | |
971 | if (PIM_DEBUG_MROUTE) { | |
972 | struct prefix_sg sg; | |
973 | ||
974 | sg.src = c_oil->oil.mfcc_origin; | |
975 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
976 | if (PIM_DEBUG_MROUTE) | |
977 | zlog_debug( | |
978 | "Channel(%s) is not installed no need to collect data from kernel", | |
979 | pim_str_sg_dump(&sg)); | |
980 | } | |
981 | return; | |
c7b1183f | 982 | } |
c7b1183f | 983 | |
d62a17ae | 984 | memset(&sgreq, 0, sizeof(sgreq)); |
985 | sgreq.src = c_oil->oil.mfcc_origin; | |
986 | sgreq.grp = c_oil->oil.mfcc_mcastgrp; | |
987 | ||
988 | pim_zlookup_sg_statistics(c_oil); | |
856e863f | 989 | if (ioctl(pim->mroute_socket, SIOCGETSGCNT, &sgreq)) { |
d62a17ae | 990 | if (PIM_DEBUG_MROUTE) { |
991 | struct prefix_sg sg; | |
992 | ||
993 | sg.src = c_oil->oil.mfcc_origin; | |
994 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
995 | ||
996 | zlog_warn( | |
997 | "ioctl(SIOCGETSGCNT=%lu) failure for (S,G)=(%s): errno=%d: %s", | |
998 | (unsigned long)SIOCGETSGCNT, | |
999 | pim_str_sg_dump(&sg), errno, | |
1000 | safe_strerror(errno)); | |
1001 | } | |
1002 | return; | |
c7b1183f | 1003 | } |
3667e8a0 | 1004 | |
d62a17ae | 1005 | c_oil->cc.pktcnt = sgreq.pktcnt; |
1006 | c_oil->cc.bytecnt = sgreq.bytecnt; | |
1007 | c_oil->cc.wrong_if = sgreq.wrong_if; | |
3667e8a0 | 1008 | |
d62a17ae | 1009 | return; |
3667e8a0 | 1010 | } |