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12e41d03 DL |
1 | /* |
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 | |
16 | along with this program; see the file COPYING; if not, write to the | |
17 | Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, | |
18 | MA 02110-1301 USA | |
12e41d03 DL |
19 | */ |
20 | ||
21 | #include <zebra.h> | |
22 | #include "log.h" | |
23 | #include "privs.h" | |
744d91b3 | 24 | #include "if.h" |
065bee4b | 25 | #include "prefix.h" |
dfe43e25 DW |
26 | #include "vty.h" |
27 | #include "plist.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" |
12e41d03 DL |
42 | |
43 | /* GLOBAL VARS */ | |
7a90f85c DS |
44 | static struct thread *qpim_mroute_socket_reader = NULL; |
45 | ||
12e41d03 DL |
46 | static void mroute_read_on(void); |
47 | ||
48 | static int pim_mroute_set(int fd, int enable) | |
49 | { | |
50 | int err; | |
51 | int opt = enable ? MRT_INIT : MRT_DONE; | |
52 | socklen_t opt_len = sizeof(opt); | |
4f7c4a76 | 53 | int rcvbuf = 1024 * 1024 * 8; |
6806e04d | 54 | long flags; |
12e41d03 DL |
55 | |
56 | err = setsockopt(fd, IPPROTO_IP, opt, &opt, opt_len); | |
57 | if (err) { | |
12e41d03 DL |
58 | zlog_warn("%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,%s=%d): errno=%d: %s", |
59 | __FILE__, __PRETTY_FUNCTION__, | |
3d7765d7 | 60 | fd, enable ? "MRT_INIT" : "MRT_DONE", opt, errno, safe_strerror(errno)); |
12e41d03 DL |
61 | return -1; |
62 | } | |
63 | ||
4f7c4a76 DS |
64 | err = setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(rcvbuf)); |
65 | if (err) { | |
66 | zlog_warn("%s: failure: setsockopt(fd=%d, SOL_SOCKET, %d): errno=%d: %s", | |
67 | __PRETTY_FUNCTION__, fd, rcvbuf, errno, safe_strerror(errno)); | |
68 | } | |
69 | ||
6806e04d DS |
70 | flags = fcntl(fd, F_GETFL, 0); |
71 | if (flags < 0) | |
72 | { | |
73 | zlog_warn("Could not get flags on socket fd:%d %d %s", | |
74 | fd, errno, safe_strerror(errno)); | |
75 | close (fd); | |
76 | return -1; | |
77 | } | |
78 | if (fcntl(fd, F_SETFL, flags | O_NONBLOCK)) | |
79 | { | |
80 | zlog_warn("Could not set O_NONBLOCK on socket fd:%d %d %s", | |
81 | fd, errno, safe_strerror(errno)); | |
82 | close(fd); | |
83 | return -1; | |
84 | } | |
85 | ||
87243934 DS |
86 | if (enable) |
87 | { | |
77b7d90b | 88 | #if defined linux |
87243934 DS |
89 | int upcalls = IGMPMSG_WRVIFWHOLE; |
90 | opt = MRT_PIM; | |
91 | ||
92 | err = setsockopt (fd, IPPROTO_IP, opt, &upcalls, sizeof (upcalls)); | |
93 | if (err) | |
94 | { | |
95 | zlog_warn ("Failure to register for VIFWHOLE and WRONGVIF upcalls %d %s", | |
96 | errno, safe_strerror (errno)); | |
97 | return -1; | |
98 | } | |
77b7d90b DS |
99 | #else |
100 | zlog_warn ("PIM-SM will not work properly on this platform, until the ability to receive the WRVIFWHOLE upcall"); | |
101 | #endif | |
87243934 DS |
102 | } |
103 | ||
12e41d03 DL |
104 | return 0; |
105 | } | |
106 | ||
08e1fe76 | 107 | static const char *igmpmsgtype2str[IGMPMSG_WRVIFWHOLE + 1] = { |
e355e30f DS |
108 | "<unknown_upcall?>", |
109 | "NOCACHE", | |
110 | "WRONGVIF", | |
08e1fe76 DS |
111 | "WHOLEPKT", |
112 | "WRVIFWHOLE" }; | |
e355e30f DS |
113 | |
114 | static int | |
c29a5806 | 115 | pim_mroute_msg_nocache (int fd, struct interface *ifp, const struct igmpmsg *msg) |
12e41d03 | 116 | { |
04b40f02 | 117 | struct pim_interface *pim_ifp = ifp->info; |
59471fb8 | 118 | struct pim_upstream *up; |
065bee4b | 119 | struct pim_rpf *rpg; |
4ed0af70 | 120 | struct prefix_sg sg; |
5f6f65b1 | 121 | struct channel_oil *oil; |
04b40f02 | 122 | |
c8ae3ce8 | 123 | rpg = RP(msg->im_dst); |
04b40f02 DS |
124 | /* |
125 | * If the incoming interface is unknown OR | |
126 | * the Interface type is SSM we don't need to | |
127 | * do anything here | |
128 | */ | |
63c59d0c | 129 | if ((pim_rpf_addr_is_inaddr_none (rpg)) || |
04b40f02 | 130 | (!pim_ifp) || |
b45fd505 | 131 | (!(PIM_I_am_DR(pim_ifp))) || |
04b40f02 | 132 | (pim_ifp->itype == PIM_INTERFACE_SSM)) |
ffac1326 DS |
133 | { |
134 | if (PIM_DEBUG_MROUTE_DETAIL) | |
135 | zlog_debug ("%s: Interface is not configured correctly to handle incoming packet: Could be !DR, !pim_ifp, !SM, !RP", | |
136 | __PRETTY_FUNCTION__); | |
137 | return 0; | |
138 | } | |
04b40f02 | 139 | |
065bee4b DS |
140 | /* |
141 | * If we've received a multicast packet that isn't connected to | |
142 | * us | |
143 | */ | |
3565202d | 144 | if (!pim_if_connected_to_source (ifp, msg->im_src)) |
065bee4b | 145 | { |
6c7197b1 | 146 | if (PIM_DEBUG_MROUTE_DETAIL) |
8f547471 | 147 | zlog_debug ("%s: Received incoming packet that doesn't originate on our seg", |
065bee4b DS |
148 | __PRETTY_FUNCTION__); |
149 | return 0; | |
150 | } | |
151 | ||
4ed0af70 DS |
152 | memset (&sg, 0, sizeof (struct prefix_sg)); |
153 | sg.src = msg->im_src; | |
154 | sg.grp = msg->im_dst; | |
c29a5806 | 155 | |
5f6f65b1 DS |
156 | oil = pim_channel_oil_add (&sg, pim_ifp->mroute_vif_index); |
157 | if (!oil) { | |
630f76b6 | 158 | if (PIM_DEBUG_MROUTE) { |
5f6f65b1 | 159 | zlog_debug("%s: Failure to add channel oil for %s", |
59471fb8 | 160 | __PRETTY_FUNCTION__, |
5074a423 | 161 | pim_str_sg_dump (&sg)); |
59471fb8 DS |
162 | } |
163 | return 0; | |
164 | } | |
165 | ||
e5905a3b | 166 | up = pim_upstream_add (&sg, ifp, PIM_UPSTREAM_FLAG_MASK_FHR, __PRETTY_FUNCTION__); |
5f6f65b1 | 167 | if (!up) { |
630f76b6 | 168 | if (PIM_DEBUG_MROUTE) { |
5f6f65b1 | 169 | zlog_debug("%s: Failure to add upstream information for %s", |
59471fb8 | 170 | __PRETTY_FUNCTION__, |
c29a5806 | 171 | pim_str_sg_dump (&sg)); |
59471fb8 DS |
172 | } |
173 | return 0; | |
174 | } | |
8bfb8b67 DS |
175 | |
176 | /* | |
177 | * I moved this debug till after the actual add because | |
178 | * I want to take advantage of the up->sg_str being filled in. | |
179 | */ | |
180 | if (PIM_DEBUG_MROUTE) { | |
181 | zlog_debug("%s: Adding a Route %s for WHOLEPKT consumption", | |
182 | __PRETTY_FUNCTION__, up->sg_str); | |
183 | } | |
184 | ||
a9b59879 | 185 | PIM_UPSTREAM_FLAG_SET_SRC_STREAM(up->flags); |
5f6f65b1 DS |
186 | pim_upstream_keep_alive_timer_start (up, qpim_keep_alive_time); |
187 | ||
188 | up->channel_oil = oil; | |
25a335e0 | 189 | up->channel_oil->cc.pktcnt++; |
0bf27c5c | 190 | PIM_UPSTREAM_FLAG_SET_FHR(up->flags); |
8a294fa2 | 191 | pim_channel_add_oif (up->channel_oil, pim_regiface, PIM_OIF_FLAG_PROTO_PIM); |
56638739 | 192 | up->join_state = PIM_UPSTREAM_JOINED; |
59471fb8 | 193 | |
e355e30f DS |
194 | return 0; |
195 | } | |
12e41d03 | 196 | |
e355e30f | 197 | static int |
c29a5806 | 198 | pim_mroute_msg_wholepkt (int fd, struct interface *ifp, const char *buf) |
e355e30f | 199 | { |
59471fb8 | 200 | struct pim_interface *pim_ifp; |
4ed0af70 | 201 | struct prefix_sg sg; |
ed66602c | 202 | struct pim_rpf *rpg; |
c8ae3ce8 | 203 | const struct ip *ip_hdr; |
59471fb8 | 204 | struct pim_upstream *up; |
04b40f02 | 205 | |
c8ae3ce8 DS |
206 | ip_hdr = (const struct ip *)buf; |
207 | ||
4ed0af70 DS |
208 | memset (&sg, 0, sizeof (struct prefix_sg)); |
209 | sg.src = ip_hdr->ip_src; | |
210 | sg.grp = ip_hdr->ip_dst; | |
c8ae3ce8 | 211 | |
5074a423 | 212 | up = pim_upstream_find(&sg); |
59471fb8 | 213 | if (!up) { |
6c7197b1 | 214 | if (PIM_DEBUG_MROUTE_DETAIL) { |
5074a423 DS |
215 | zlog_debug("%s: Unable to find upstream channel WHOLEPKT%s", |
216 | __PRETTY_FUNCTION__, pim_str_sg_dump (&sg)); | |
59471fb8 DS |
217 | } |
218 | return 0; | |
219 | } | |
220 | ||
998af219 DS |
221 | pim_ifp = up->rpf.source_nexthop.interface->info; |
222 | ||
4ed0af70 | 223 | rpg = RP(sg.grp); |
c8ae3ce8 | 224 | |
63c59d0c | 225 | if ((pim_rpf_addr_is_inaddr_none (rpg)) || |
c8ae3ce8 | 226 | (!pim_ifp) || |
b45fd505 | 227 | (!(PIM_I_am_DR(pim_ifp))) || |
c8ae3ce8 | 228 | (pim_ifp->itype == PIM_INTERFACE_SSM)) { |
630f76b6 | 229 | if (PIM_DEBUG_MROUTE) { |
998af219 DS |
230 | zlog_debug("%s: Failed Check send packet", __PRETTY_FUNCTION__); |
231 | } | |
c8ae3ce8 | 232 | return 0; |
04b40f02 | 233 | } |
84366c7e | 234 | |
2ddab288 DS |
235 | /* |
236 | * If we've received a register suppress | |
237 | */ | |
238 | if (!up->t_rs_timer) | |
6431763d DS |
239 | pim_register_send((uint8_t *)buf + sizeof(struct ip), |
240 | ntohs (ip_hdr->ip_len) - sizeof (struct ip), | |
241 | pim_ifp->primary_address, rpg, 0, up); | |
e355e30f DS |
242 | return 0; |
243 | } | |
12e41d03 | 244 | |
e355e30f | 245 | static int |
c29a5806 | 246 | pim_mroute_msg_wrongvif (int fd, struct interface *ifp, const struct igmpmsg *msg) |
e355e30f DS |
247 | { |
248 | struct pim_ifchannel *ch; | |
249 | struct pim_interface *pim_ifp; | |
4ed0af70 | 250 | struct prefix_sg sg; |
12e41d03 | 251 | |
c29a5806 DS |
252 | memset (&sg, 0, sizeof (struct prefix_sg)); |
253 | sg.src = msg->im_src; | |
254 | sg.grp = msg->im_dst; | |
255 | ||
e355e30f DS |
256 | /* |
257 | Send Assert(S,G) on iif as response to WRONGVIF kernel upcall. | |
12e41d03 | 258 | |
e355e30f DS |
259 | RFC 4601 4.8.2. PIM-SSM-Only Routers |
260 | ||
261 | iif is the incoming interface of the packet. | |
262 | if (iif is in inherited_olist(S,G)) { | |
263 | send Assert(S,G) on iif | |
264 | } | |
265 | */ | |
12e41d03 | 266 | |
e355e30f | 267 | if (!ifp) { |
0490c22d | 268 | if (PIM_DEBUG_MROUTE) |
c29a5806 | 269 | zlog_debug("%s: WRONGVIF (S,G)=%s could not find input interface for input_vif_index=%d", |
12e41d03 | 270 | __PRETTY_FUNCTION__, |
c29a5806 | 271 | pim_str_sg_dump (&sg), msg->im_vif); |
e355e30f DS |
272 | return -1; |
273 | } | |
12e41d03 | 274 | |
e355e30f DS |
275 | pim_ifp = ifp->info; |
276 | if (!pim_ifp) { | |
0490c22d | 277 | if (PIM_DEBUG_MROUTE) |
c29a5806 | 278 | zlog_debug("%s: WRONGVIF (S,G)=%s multicast not enabled on interface %s", |
e355e30f | 279 | __PRETTY_FUNCTION__, |
c29a5806 | 280 | pim_str_sg_dump (&sg), ifp->name); |
e355e30f DS |
281 | return -2; |
282 | } | |
12e41d03 | 283 | |
5074a423 | 284 | ch = pim_ifchannel_find(ifp, &sg); |
e355e30f | 285 | if (!ch) { |
0490c22d DS |
286 | struct prefix_sg star_g = sg; |
287 | if (PIM_DEBUG_MROUTE) | |
c29a5806 | 288 | zlog_debug("%s: WRONGVIF (S,G)=%s could not find channel on interface %s", |
e355e30f | 289 | __PRETTY_FUNCTION__, |
0490c22d DS |
290 | pim_str_sg_dump(&sg), ifp->name); |
291 | ||
292 | star_g.src.s_addr = INADDR_ANY; | |
293 | ch = pim_ifchannel_find(ifp, &star_g); | |
294 | if (!ch) { | |
295 | if (PIM_DEBUG_MROUTE) | |
296 | zlog_debug("%s: WRONGVIF (*,G)=%s could not find channel on interface %s", | |
297 | __PRETTY_FUNCTION__, | |
298 | pim_str_sg_dump(&star_g), ifp->name); | |
299 | return -3; | |
12e41d03 | 300 | } |
e355e30f | 301 | } |
12e41d03 | 302 | |
e355e30f DS |
303 | /* |
304 | RFC 4601: 4.6.1. (S,G) Assert Message State Machine | |
305 | ||
306 | Transitions from NoInfo State | |
307 | ||
308 | An (S,G) data packet arrives on interface I, AND | |
309 | CouldAssert(S,G,I)==TRUE An (S,G) data packet arrived on an | |
310 | downstream interface that is in our (S,G) outgoing interface | |
311 | list. We optimistically assume that we will be the assert | |
312 | winner for this (S,G), and so we transition to the "I am Assert | |
313 | Winner" state and perform Actions A1 (below), which will | |
314 | initiate the assert negotiation for (S,G). | |
315 | */ | |
12e41d03 | 316 | |
e355e30f | 317 | if (ch->ifassert_state != PIM_IFASSERT_NOINFO) { |
630f76b6 | 318 | if (PIM_DEBUG_MROUTE) { |
c29a5806 | 319 | zlog_debug("%s: WRONGVIF (S,G)=%s channel is not on Assert NoInfo state for interface %s", |
e355e30f | 320 | __PRETTY_FUNCTION__, |
8bfb8b67 | 321 | ch->sg_str, ifp->name); |
12e41d03 | 322 | } |
e355e30f DS |
323 | return -4; |
324 | } | |
12e41d03 | 325 | |
e355e30f | 326 | if (!PIM_IF_FLAG_TEST_COULD_ASSERT(ch->flags)) { |
630f76b6 | 327 | if (PIM_DEBUG_MROUTE) { |
c29a5806 | 328 | zlog_debug("%s: WRONGVIF (S,G)=%s interface %s is not downstream for channel", |
e355e30f | 329 | __PRETTY_FUNCTION__, |
8bfb8b67 | 330 | ch->sg_str, ifp->name); |
12e41d03 | 331 | } |
e355e30f DS |
332 | return -5; |
333 | } | |
12e41d03 | 334 | |
e355e30f | 335 | if (assert_action_a1(ch)) { |
630f76b6 | 336 | if (PIM_DEBUG_MROUTE) { |
c29a5806 | 337 | zlog_debug("%s: WRONGVIF (S,G)=%s assert_action_a1 failure on interface %s", |
e355e30f | 338 | __PRETTY_FUNCTION__, |
8bfb8b67 | 339 | ch->sg_str, ifp->name); |
12e41d03 | 340 | } |
e355e30f DS |
341 | return -6; |
342 | } | |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
08e1fe76 DS |
347 | static int |
348 | pim_mroute_msg_wrvifwhole (int fd, struct interface *ifp, const char *buf) | |
349 | { | |
350 | const struct ip *ip_hdr = (const struct ip *)buf; | |
351 | struct pim_interface *pim_ifp; | |
352 | struct pim_ifchannel *ch; | |
353 | struct pim_upstream *up; | |
5cd11e3c | 354 | //struct prefix_sg star_g; |
08e1fe76 | 355 | struct prefix_sg sg; |
5f6f65b1 | 356 | struct channel_oil *oil; |
08e1fe76 DS |
357 | |
358 | memset (&sg, 0, sizeof (struct prefix_sg)); | |
359 | sg.src = ip_hdr->ip_src; | |
360 | sg.grp = ip_hdr->ip_dst; | |
361 | ||
08e1fe76 DS |
362 | ch = pim_ifchannel_find(ifp, &sg); |
363 | if (ch) | |
364 | { | |
365 | if (PIM_DEBUG_MROUTE) | |
366 | zlog_debug ("WRVIFWHOLE (S,G)=%s found ifchannel on interface %s", | |
8bfb8b67 | 367 | ch->sg_str, ifp->name); |
08e1fe76 DS |
368 | return -1; |
369 | } | |
5cd11e3c | 370 | #if 0 |
0490c22d DS |
371 | star_g = sg; |
372 | star_g.src.s_addr = INADDR_ANY; | |
373 | ch = pim_ifchannel_find(ifp, &star_g); | |
374 | if (ch) | |
375 | { | |
376 | if (PIM_DEBUG_MROUTE) | |
377 | zlog_debug ("WRVIFWHOLE (*,G)=%s found ifchannel on interface %s", | |
378 | pim_str_sg_dump (&star_g), ifp->name); | |
379 | return -1; | |
380 | } | |
5cd11e3c | 381 | #endif |
08e1fe76 | 382 | |
8e38a2cf DS |
383 | up = pim_upstream_find (&sg); |
384 | if (up) | |
385 | { | |
9244dd13 DS |
386 | struct pim_nexthop source; |
387 | struct pim_rpf *rpf = RP (sg.grp); | |
388 | if (!rpf || !rpf->source_nexthop.interface) | |
389 | return 0; | |
390 | ||
391 | pim_ifp = rpf->source_nexthop.interface->info; | |
392 | ||
393 | memset (&source, 0, sizeof (source)); | |
7fe1f662 DS |
394 | /* |
395 | * If we are the fhr that means we are getting a callback during | |
396 | * the pimreg period, so I believe we can ignore this packet | |
397 | */ | |
0bf27c5c | 398 | if (!PIM_UPSTREAM_FLAG_TEST_FHR(up->flags)) |
7fe1f662 | 399 | { |
7fe1f662 | 400 | //No if channel, but upstream we are at the RP. |
88d6652e DS |
401 | if (pim_nexthop_lookup (&source, up->upstream_register, 0) == 0) |
402 | pim_register_stop_send(source.interface, &sg, pim_ifp->primary_address, up->upstream_register); | |
51e82833 DS |
403 | if (!up->channel_oil) |
404 | up->channel_oil = pim_channel_oil_add (&sg, pim_ifp->mroute_vif_index); | |
5b668dd7 | 405 | pim_upstream_inherited_olist (up); |
51e82833 | 406 | if (!up->channel_oil->installed) |
6a78764e | 407 | pim_mroute_add (up->channel_oil, __PRETTY_FUNCTION__); |
3a66b17b | 408 | pim_upstream_set_sptbit (up, ifp); |
7fe1f662 | 409 | } |
5b668dd7 DS |
410 | else |
411 | { | |
9244dd13 DS |
412 | if (I_am_RP (up->sg.grp)) |
413 | { | |
414 | if (pim_nexthop_lookup (&source, up->upstream_register, 0) == 0) | |
415 | pim_register_stop_send(source.interface, &sg, pim_ifp->primary_address, up->upstream_register); | |
416 | up->sptbit = PIM_UPSTREAM_SPTBIT_TRUE; | |
417 | } | |
5b668dd7 DS |
418 | pim_upstream_keep_alive_timer_start (up, qpim_keep_alive_time); |
419 | pim_upstream_inherited_olist (up); | |
420 | pim_mroute_msg_wholepkt (fd, ifp, buf); | |
421 | } | |
422 | return 0; | |
8e38a2cf DS |
423 | } |
424 | ||
5f6f65b1 DS |
425 | pim_ifp = ifp->info; |
426 | oil = pim_channel_oil_add (&sg, pim_ifp->mroute_vif_index); | |
427 | if (!oil->installed) | |
6a78764e | 428 | pim_mroute_add (oil, __PRETTY_FUNCTION__); |
5f6f65b1 | 429 | if (pim_if_connected_to_source (ifp, sg.src)) |
08e1fe76 | 430 | { |
e5905a3b | 431 | up = pim_upstream_add (&sg, ifp, PIM_UPSTREAM_FLAG_MASK_FHR, __PRETTY_FUNCTION__); |
5f6f65b1 DS |
432 | if (!up) |
433 | { | |
434 | if (PIM_DEBUG_MROUTE) | |
435 | zlog_debug ("%s: WRONGVIF%s unable to create upstream on interface", | |
436 | pim_str_sg_dump (&sg), ifp->name); | |
437 | return -2; | |
438 | } | |
a9b59879 | 439 | PIM_UPSTREAM_FLAG_SET_SRC_STREAM(up->flags); |
5f6f65b1 DS |
440 | pim_upstream_keep_alive_timer_start (up, qpim_keep_alive_time); |
441 | up->channel_oil = oil; | |
442 | up->channel_oil->cc.pktcnt++; | |
443 | pim_channel_add_oif (up->channel_oil, pim_regiface, PIM_OIF_FLAG_PROTO_PIM); | |
444 | up->join_state = PIM_UPSTREAM_JOINED; | |
445 | pim_upstream_inherited_olist (up); | |
08e1fe76 | 446 | |
5f6f65b1 DS |
447 | // Send the packet to the RP |
448 | pim_mroute_msg_wholepkt (fd, ifp, buf); | |
449 | } | |
08e1fe76 DS |
450 | |
451 | return 0; | |
452 | } | |
453 | ||
e355e30f DS |
454 | int pim_mroute_msg(int fd, const char *buf, int buf_size) |
455 | { | |
456 | struct interface *ifp; | |
b05b72e8 | 457 | struct pim_interface *pim_ifp; |
e355e30f DS |
458 | const struct ip *ip_hdr; |
459 | const struct igmpmsg *msg; | |
eaa54bdb DW |
460 | char ip_src_str[INET_ADDRSTRLEN] = ""; |
461 | char ip_dst_str[INET_ADDRSTRLEN] = ""; | |
462 | char src_str[INET_ADDRSTRLEN] = "<src?>"; | |
463 | char grp_str[INET_ADDRSTRLEN] = "<grp?>"; | |
b05b72e8 DW |
464 | struct in_addr ifaddr; |
465 | struct igmp_sock *igmp; | |
12e41d03 | 466 | |
e355e30f DS |
467 | ip_hdr = (const struct ip *) buf; |
468 | ||
b05b72e8 DW |
469 | if (ip_hdr->ip_p == IPPROTO_IGMP) { |
470 | ||
471 | /* We have the IP packet but we do not know which interface this packet was | |
472 | * received on. Find the interface that is on the same subnet as the source | |
473 | * of the IP packet. | |
474 | */ | |
9f0edbc9 | 475 | ifp = pim_if_lookup_address_vrf (ip_hdr->ip_src, VRF_DEFAULT); |
b05b72e8 DW |
476 | |
477 | if (!ifp) { | |
478 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
479 | pim_inet4_dump("<src?>", ip_hdr->ip_src, ip_src_str, sizeof(ip_src_str)); | |
480 | pim_inet4_dump("<dst?>", ip_hdr->ip_dst, ip_dst_str, sizeof(ip_dst_str)); | |
481 | ||
9f0edbc9 | 482 | zlog_warn("%s: igmp kernel upcall could not find usable interface for %s -> %s", |
b05b72e8 DW |
483 | __PRETTY_FUNCTION__, |
484 | ip_src_str, | |
485 | ip_dst_str); | |
486 | } | |
487 | return 0; | |
488 | } | |
b05b72e8 DW |
489 | pim_ifp = ifp->info; |
490 | ifaddr = pim_find_primary_addr(ifp); | |
491 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, ifaddr); | |
492 | ||
02e5bd72 | 493 | if (PIM_DEBUG_MROUTE) { |
b05b72e8 DW |
494 | pim_inet4_dump("<src?>", ip_hdr->ip_src, ip_src_str, sizeof(ip_src_str)); |
495 | pim_inet4_dump("<dst?>", ip_hdr->ip_dst, ip_dst_str, sizeof(ip_dst_str)); | |
496 | ||
02e5bd72 DS |
497 | zlog_warn("%s: igmp kernel upcall on %s(%p) for %s -> %s", |
498 | __PRETTY_FUNCTION__, ifp->name, igmp, ip_src_str, ip_dst_str); | |
b05b72e8 | 499 | } |
02e5bd72 DS |
500 | if (igmp) |
501 | pim_igmp_packet(igmp, (char *)buf, buf_size); | |
b05b72e8 DW |
502 | |
503 | } else if (ip_hdr->ip_p) { | |
6c7197b1 | 504 | if (PIM_DEBUG_MROUTE_DETAIL) { |
e5d33c83 DS |
505 | pim_inet4_dump("<src?>", ip_hdr->ip_src, src_str, sizeof(src_str)); |
506 | pim_inet4_dump("<grp?>", ip_hdr->ip_dst, grp_str, sizeof(grp_str)); | |
b05b72e8 DW |
507 | zlog_debug("%s: no kernel upcall proto=%d src: %s dst: %s msg_size=%d", |
508 | __PRETTY_FUNCTION__, ip_hdr->ip_p, src_str, grp_str, buf_size); | |
e355e30f | 509 | } |
e355e30f | 510 | |
b05b72e8 DW |
511 | } else { |
512 | msg = (const struct igmpmsg *) buf; | |
e355e30f | 513 | |
b05b72e8 | 514 | ifp = pim_if_find_by_vif_index(msg->im_vif); |
e355e30f | 515 | |
38f380f5 DS |
516 | if (!ifp) |
517 | return 0; | |
b05b72e8 DW |
518 | if (PIM_DEBUG_MROUTE) { |
519 | pim_inet4_dump("<src?>", msg->im_src, src_str, sizeof(src_str)); | |
520 | pim_inet4_dump("<grp?>", msg->im_dst, grp_str, sizeof(grp_str)); | |
521 | zlog_warn("%s: pim kernel upcall %s type=%d ip_p=%d from fd=%d for (S,G)=(%s,%s) on %s vifi=%d size=%d", | |
522 | __PRETTY_FUNCTION__, | |
523 | igmpmsgtype2str[msg->im_msgtype], | |
524 | msg->im_msgtype, | |
525 | ip_hdr->ip_p, | |
526 | fd, | |
527 | src_str, | |
528 | grp_str, | |
529 | ifp->name, | |
530 | msg->im_vif, buf_size); | |
531 | } | |
e355e30f | 532 | |
b05b72e8 DW |
533 | switch (msg->im_msgtype) { |
534 | case IGMPMSG_WRONGVIF: | |
535 | return pim_mroute_msg_wrongvif(fd, ifp, msg); | |
536 | break; | |
537 | case IGMPMSG_NOCACHE: | |
538 | return pim_mroute_msg_nocache(fd, ifp, msg); | |
539 | break; | |
540 | case IGMPMSG_WHOLEPKT: | |
541 | return pim_mroute_msg_wholepkt(fd, ifp, (const char *)msg); | |
542 | break; | |
543 | case IGMPMSG_WRVIFWHOLE: | |
544 | return pim_mroute_msg_wrvifwhole (fd, ifp, (const char *)msg); | |
545 | break; | |
546 | default: | |
547 | break; | |
548 | } | |
e355e30f | 549 | } |
12e41d03 DL |
550 | |
551 | return 0; | |
552 | } | |
553 | ||
12e41d03 DL |
554 | static int mroute_read(struct thread *t) |
555 | { | |
6806e04d DS |
556 | static long long count; |
557 | char buf[10000]; | |
558 | int result = 0; | |
559 | int cont = 1; | |
12e41d03 | 560 | int fd; |
6806e04d | 561 | int rd; |
12e41d03 DL |
562 | |
563 | fd = THREAD_FD(t); | |
12e41d03 | 564 | |
6806e04d DS |
565 | while (cont) |
566 | { | |
567 | rd = read(fd, buf, sizeof(buf)); | |
568 | if (rd < 0) { | |
569 | if (errno == EINTR) | |
570 | continue; | |
571 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
572 | { | |
573 | cont = 0; | |
574 | break; | |
575 | } | |
576 | if (PIM_DEBUG_MROUTE) | |
577 | zlog_warn("%s: failure reading fd=%d: errno=%d: %s", | |
578 | __PRETTY_FUNCTION__, fd, errno, safe_strerror(errno)); | |
579 | goto done; | |
580 | } | |
12e41d03 | 581 | |
6806e04d DS |
582 | result = pim_mroute_msg(fd, buf, rd); |
583 | ||
584 | count++; | |
8e4c9ef3 | 585 | if (count % qpim_packet_process == 0) |
6806e04d DS |
586 | cont = 0; |
587 | } | |
12e41d03 | 588 | /* Keep reading */ |
6806e04d | 589 | done: |
7a90f85c | 590 | qpim_mroute_socket_reader = NULL; |
12e41d03 DL |
591 | mroute_read_on(); |
592 | ||
593 | return result; | |
594 | } | |
595 | ||
596 | static void mroute_read_on() | |
597 | { | |
598 | zassert(!qpim_mroute_socket_reader); | |
599 | zassert(PIM_MROUTE_IS_ENABLED); | |
600 | ||
601 | THREAD_READ_ON(master, qpim_mroute_socket_reader, | |
602 | mroute_read, 0, qpim_mroute_socket_fd); | |
603 | } | |
604 | ||
605 | static void mroute_read_off() | |
606 | { | |
607 | THREAD_OFF(qpim_mroute_socket_reader); | |
608 | } | |
609 | ||
610 | int pim_mroute_socket_enable() | |
611 | { | |
612 | int fd; | |
613 | ||
614 | if (PIM_MROUTE_IS_ENABLED) | |
615 | return -1; | |
616 | ||
617 | if ( pimd_privs.change (ZPRIVS_RAISE) ) | |
618 | zlog_err ("pim_mroute_socket_enable: could not raise privs, %s", | |
619 | safe_strerror (errno) ); | |
620 | ||
621 | fd = socket(AF_INET, SOCK_RAW, IPPROTO_IGMP); | |
622 | ||
623 | if ( pimd_privs.change (ZPRIVS_LOWER) ) | |
624 | zlog_err ("pim_mroute_socket_enable: could not lower privs, %s", | |
625 | safe_strerror (errno) ); | |
626 | ||
627 | if (fd < 0) { | |
628 | zlog_warn("Could not create mroute socket: errno=%d: %s", | |
629 | errno, safe_strerror(errno)); | |
630 | return -2; | |
631 | } | |
632 | ||
633 | if (pim_mroute_set(fd, 1)) { | |
634 | zlog_warn("Could not enable mroute on socket fd=%d: errno=%d: %s", | |
635 | fd, errno, safe_strerror(errno)); | |
636 | close(fd); | |
637 | return -3; | |
638 | } | |
639 | ||
640 | qpim_mroute_socket_fd = fd; | |
b45cefcb | 641 | |
12e41d03 DL |
642 | qpim_mroute_socket_creation = pim_time_monotonic_sec(); |
643 | mroute_read_on(); | |
644 | ||
12e41d03 DL |
645 | return 0; |
646 | } | |
647 | ||
648 | int pim_mroute_socket_disable() | |
649 | { | |
650 | if (PIM_MROUTE_IS_DISABLED) | |
651 | return -1; | |
652 | ||
653 | if (pim_mroute_set(qpim_mroute_socket_fd, 0)) { | |
654 | zlog_warn("Could not disable mroute on socket fd=%d: errno=%d: %s", | |
655 | qpim_mroute_socket_fd, errno, safe_strerror(errno)); | |
656 | return -2; | |
657 | } | |
658 | ||
659 | if (close(qpim_mroute_socket_fd)) { | |
660 | zlog_warn("Failure closing mroute socket: fd=%d errno=%d: %s", | |
661 | qpim_mroute_socket_fd, errno, safe_strerror(errno)); | |
662 | return -3; | |
663 | } | |
664 | ||
665 | mroute_read_off(); | |
666 | qpim_mroute_socket_fd = -1; | |
667 | ||
12e41d03 DL |
668 | return 0; |
669 | } | |
670 | ||
671 | /* | |
672 | For each network interface (e.g., physical or a virtual tunnel) that | |
673 | would be used for multicast forwarding, a corresponding multicast | |
674 | interface must be added to the kernel. | |
675 | */ | |
744d91b3 | 676 | int pim_mroute_add_vif(struct interface *ifp, struct in_addr ifaddr, unsigned char flags) |
12e41d03 | 677 | { |
744d91b3 | 678 | struct pim_interface *pim_ifp = ifp->info; |
12e41d03 DL |
679 | struct vifctl vc; |
680 | int err; | |
681 | ||
682 | if (PIM_MROUTE_IS_DISABLED) { | |
683 | zlog_warn("%s: global multicast is disabled", | |
684 | __PRETTY_FUNCTION__); | |
685 | return -1; | |
686 | } | |
687 | ||
688 | memset(&vc, 0, sizeof(vc)); | |
744d91b3 | 689 | vc.vifc_vifi = pim_ifp->mroute_vif_index; |
b3f2bf7c | 690 | #ifdef VIFF_USE_IFINDEX |
744d91b3 | 691 | vc.vifc_lcl_ifindex = ifp->ifindex; |
b3f2bf7c RW |
692 | #else |
693 | if (ifaddr.s_addr == INADDR_ANY) { | |
694 | zlog_warn("%s: unnumbered interfaces are not supported on this platform", | |
695 | __PRETTY_FUNCTION__); | |
696 | return -1; | |
697 | } | |
698 | memcpy(&vc.vifc_lcl_addr, &ifaddr, sizeof(vc.vifc_lcl_addr)); | |
699 | #endif | |
b45cefcb | 700 | vc.vifc_flags = flags; |
12e41d03 DL |
701 | vc.vifc_threshold = PIM_MROUTE_MIN_TTL; |
702 | vc.vifc_rate_limit = 0; | |
12e41d03 DL |
703 | |
704 | #ifdef PIM_DVMRP_TUNNEL | |
705 | if (vc.vifc_flags & VIFF_TUNNEL) { | |
706 | memcpy(&vc.vifc_rmt_addr, &vif_remote_addr, sizeof(vc.vifc_rmt_addr)); | |
707 | } | |
708 | #endif | |
709 | ||
b45cefcb | 710 | err = setsockopt(qpim_mroute_socket_fd, IPPROTO_IP, MRT_ADD_VIF, (void*) &vc, sizeof(vc)); |
12e41d03 | 711 | if (err) { |
eaa54bdb | 712 | char ifaddr_str[INET_ADDRSTRLEN]; |
12e41d03 DL |
713 | |
714 | pim_inet4_dump("<ifaddr?>", ifaddr, ifaddr_str, sizeof(ifaddr_str)); | |
715 | ||
59471fb8 | 716 | zlog_warn("%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_ADD_VIF,vif_index=%d,ifaddr=%s,flag=%d): errno=%d: %s", |
12e41d03 | 717 | __FILE__, __PRETTY_FUNCTION__, |
744d91b3 | 718 | qpim_mroute_socket_fd, ifp->ifindex, ifaddr_str, flags, |
3d7765d7 | 719 | errno, safe_strerror(errno)); |
12e41d03 DL |
720 | return -2; |
721 | } | |
722 | ||
723 | return 0; | |
724 | } | |
725 | ||
726 | int pim_mroute_del_vif(int vif_index) | |
727 | { | |
728 | struct vifctl vc; | |
729 | int err; | |
730 | ||
731 | if (PIM_MROUTE_IS_DISABLED) { | |
732 | zlog_warn("%s: global multicast is disabled", | |
733 | __PRETTY_FUNCTION__); | |
734 | return -1; | |
735 | } | |
736 | ||
e81d9709 CS |
737 | if (PIM_DEBUG_MROUTE) |
738 | { | |
739 | struct interface *ifp = pim_if_find_by_vif_index (vif_index); | |
740 | zlog_debug ("%s %s: Del Vif %d (%s) ", __FILE__, | |
741 | __PRETTY_FUNCTION__, vif_index, ifp ? ifp->name : "NULL"); | |
742 | } | |
743 | ||
12e41d03 DL |
744 | memset(&vc, 0, sizeof(vc)); |
745 | vc.vifc_vifi = vif_index; | |
746 | ||
747 | err = setsockopt(qpim_mroute_socket_fd, IPPROTO_IP, MRT_DEL_VIF, (void*) &vc, sizeof(vc)); | |
748 | if (err) { | |
12e41d03 DL |
749 | zlog_warn("%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_DEL_VIF,vif_index=%d): errno=%d: %s", |
750 | __FILE__, __PRETTY_FUNCTION__, | |
751 | qpim_mroute_socket_fd, vif_index, | |
3d7765d7 | 752 | errno, safe_strerror(errno)); |
12e41d03 DL |
753 | return -2; |
754 | } | |
755 | ||
756 | return 0; | |
757 | } | |
758 | ||
6a78764e | 759 | int pim_mroute_add(struct channel_oil *c_oil, const char *name) |
12e41d03 DL |
760 | { |
761 | int err; | |
2ca35b3d | 762 | int orig = 0; |
0365f56b | 763 | int orig_iif_vif = 0; |
12e41d03 DL |
764 | |
765 | qpim_mroute_add_last = pim_time_monotonic_sec(); | |
766 | ++qpim_mroute_add_events; | |
767 | ||
768 | if (PIM_MROUTE_IS_DISABLED) { | |
769 | zlog_warn("%s: global multicast is disabled", | |
770 | __PRETTY_FUNCTION__); | |
771 | return -1; | |
772 | } | |
429a291b CS |
773 | /* Do not install route if incoming interface is undefined. */ |
774 | if (c_oil->oil.mfcc_parent == MAXVIFS) | |
775 | { | |
776 | if (PIM_DEBUG_MROUTE) | |
777 | { | |
778 | char buf[1000]; | |
779 | zlog_debug("%s(%s) %s Attempting to add vifi that is invalid to mroute table", | |
780 | __PRETTY_FUNCTION__, name, pim_channel_oil_dump (c_oil, buf, sizeof(buf))); | |
781 | } | |
782 | return -2; | |
783 | } | |
12e41d03 | 784 | |
d3aded99 DS |
785 | /* The linux kernel *expects* the incoming |
786 | * vif to be part of the outgoing list | |
787 | * in the case of a (*,G). | |
788 | */ | |
c171d6d8 | 789 | if (c_oil->oil.mfcc_origin.s_addr == INADDR_ANY) |
d3aded99 | 790 | { |
c171d6d8 DS |
791 | orig = c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent]; |
792 | c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent] = 1; | |
d3aded99 DS |
793 | } |
794 | ||
0365f56b DS |
795 | /* |
796 | * If we have an unresolved cache entry for the S,G | |
797 | * it is owned by the pimreg for the incoming IIF | |
798 | * So set pimreg as the IIF temporarily to cause | |
799 | * the packets to be forwarded. Then set it | |
800 | * to the correct IIF afterwords. | |
801 | */ | |
802 | if (!c_oil->installed && c_oil->oil.mfcc_origin.s_addr != INADDR_ANY && | |
803 | c_oil->oil.mfcc_parent != 0) | |
804 | { | |
805 | orig_iif_vif = c_oil->oil.mfcc_parent; | |
806 | c_oil->oil.mfcc_parent = 0; | |
807 | } | |
12e41d03 | 808 | err = setsockopt(qpim_mroute_socket_fd, IPPROTO_IP, MRT_ADD_MFC, |
c171d6d8 | 809 | &c_oil->oil, sizeof(c_oil->oil)); |
d3aded99 | 810 | |
0365f56b DS |
811 | if (!err && !c_oil->installed && c_oil->oil.mfcc_origin.s_addr != INADDR_ANY && |
812 | orig_iif_vif != 0) | |
813 | { | |
814 | c_oil->oil.mfcc_parent = orig_iif_vif; | |
815 | err = setsockopt (qpim_mroute_socket_fd, IPPROTO_IP, MRT_ADD_MFC, | |
816 | &c_oil->oil, sizeof (c_oil->oil)); | |
817 | } | |
818 | ||
c171d6d8 DS |
819 | if (c_oil->oil.mfcc_origin.s_addr == INADDR_ANY) |
820 | c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent] = orig; | |
d3aded99 | 821 | |
12e41d03 | 822 | if (err) { |
12e41d03 DL |
823 | zlog_warn("%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_ADD_MFC): errno=%d: %s", |
824 | __FILE__, __PRETTY_FUNCTION__, | |
825 | qpim_mroute_socket_fd, | |
3d7765d7 | 826 | errno, safe_strerror(errno)); |
12e41d03 DL |
827 | return -2; |
828 | } | |
829 | ||
6a78764e DS |
830 | if (PIM_DEBUG_MROUTE) |
831 | { | |
781a1745 DS |
832 | char buf[1000]; |
833 | zlog_debug("%s(%s), Added Route: %s", | |
834 | __PRETTY_FUNCTION__, name, | |
835 | pim_channel_oil_dump (c_oil, buf, sizeof(buf))); | |
6a78764e DS |
836 | } |
837 | ||
58302dc7 | 838 | c_oil->installed = 1; |
12e41d03 DL |
839 | return 0; |
840 | } | |
841 | ||
6a78764e | 842 | int pim_mroute_del (struct channel_oil *c_oil, const char *name) |
12e41d03 DL |
843 | { |
844 | int err; | |
845 | ||
846 | qpim_mroute_del_last = pim_time_monotonic_sec(); | |
847 | ++qpim_mroute_del_events; | |
848 | ||
849 | if (PIM_MROUTE_IS_DISABLED) { | |
850 | zlog_warn("%s: global multicast is disabled", | |
851 | __PRETTY_FUNCTION__); | |
852 | return -1; | |
853 | } | |
854 | ||
429a291b CS |
855 | if (!c_oil->installed) |
856 | { | |
857 | if (PIM_DEBUG_MROUTE) | |
858 | { | |
859 | char buf[1000]; | |
860 | zlog_debug("%s %s: vifi %d for route is %s not installed, do not need to send del req. ", | |
861 | __FILE__, __PRETTY_FUNCTION__, c_oil->oil.mfcc_parent, | |
862 | pim_channel_oil_dump (c_oil, buf, sizeof(buf))); | |
863 | } | |
864 | return -2; | |
865 | } | |
866 | ||
c171d6d8 | 867 | err = setsockopt(qpim_mroute_socket_fd, IPPROTO_IP, MRT_DEL_MFC, &c_oil->oil, sizeof(c_oil->oil)); |
12e41d03 | 868 | if (err) { |
05ca4827 DS |
869 | if (PIM_DEBUG_MROUTE) |
870 | zlog_warn("%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_DEL_MFC): errno=%d: %s", | |
871 | __FILE__, __PRETTY_FUNCTION__, | |
872 | qpim_mroute_socket_fd, | |
873 | errno, safe_strerror(errno)); | |
12e41d03 DL |
874 | return -2; |
875 | } | |
876 | ||
6a78764e DS |
877 | if (PIM_DEBUG_MROUTE) |
878 | { | |
781a1745 DS |
879 | char buf[1000]; |
880 | zlog_debug("%s(%s), Deleted Route: %s", | |
881 | __PRETTY_FUNCTION__, name, | |
882 | pim_channel_oil_dump (c_oil, buf, sizeof(buf))); | |
6a78764e | 883 | } |
781a1745 | 884 | |
429a291b | 885 | /*reset incoming vifi and kernel installed flags*/ |
58302dc7 | 886 | c_oil->installed = 0; |
429a291b | 887 | c_oil->oil.mfcc_parent = MAXVIFS; |
58302dc7 | 888 | |
12e41d03 DL |
889 | return 0; |
890 | } | |
3667e8a0 DS |
891 | |
892 | void | |
893 | pim_mroute_update_counters (struct channel_oil *c_oil) | |
894 | { | |
895 | struct sioc_sg_req sgreq; | |
896 | ||
3667e8a0 DS |
897 | c_oil->cc.oldpktcnt = c_oil->cc.pktcnt; |
898 | c_oil->cc.oldbytecnt = c_oil->cc.bytecnt; | |
899 | c_oil->cc.oldwrong_if = c_oil->cc.wrong_if; | |
900 | ||
c7b1183f DS |
901 | if (!c_oil->installed) |
902 | { | |
903 | c_oil->cc.lastused = 100 * qpim_keep_alive_time; | |
904 | if (PIM_DEBUG_MROUTE) | |
905 | { | |
906 | struct prefix_sg sg; | |
907 | ||
908 | sg.src = c_oil->oil.mfcc_origin; | |
909 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
910 | if (PIM_DEBUG_MROUTE) | |
911 | zlog_debug("Channel(%s) is not installed no need to collect data from kernel", | |
912 | pim_str_sg_dump (&sg)); | |
913 | } | |
914 | return; | |
915 | } | |
916 | ||
917 | memset (&sgreq, 0, sizeof(sgreq)); | |
918 | sgreq.src = c_oil->oil.mfcc_origin; | |
919 | sgreq.grp = c_oil->oil.mfcc_mcastgrp; | |
920 | ||
51e82833 | 921 | pim_zlookup_sg_statistics (c_oil); |
3667e8a0 DS |
922 | if (ioctl (qpim_mroute_socket_fd, SIOCGETSGCNT, &sgreq)) |
923 | { | |
c7b1183f DS |
924 | if (PIM_DEBUG_MROUTE) |
925 | { | |
926 | struct prefix_sg sg; | |
927 | ||
928 | sg.src = c_oil->oil.mfcc_origin; | |
929 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
930 | ||
931 | zlog_warn ("ioctl(SIOCGETSGCNT=%lu) failure for (S,G)=(%s): errno=%d: %s", | |
932 | (unsigned long)SIOCGETSGCNT, | |
933 | pim_str_sg_dump (&sg), | |
934 | errno, | |
935 | safe_strerror(errno)); | |
936 | } | |
3667e8a0 DS |
937 | return; |
938 | } | |
939 | ||
940 | c_oil->cc.pktcnt = sgreq.pktcnt; | |
941 | c_oil->cc.bytecnt = sgreq.bytecnt; | |
942 | c_oil->cc.wrong_if = sgreq.wrong_if; | |
943 | ||
944 | return; | |
945 | } |