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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" | |
12e41d03 DL |
27 | |
28 | #include "pimd.h" | |
8e38a2cf | 29 | #include "pim_rpf.h" |
12e41d03 | 30 | #include "pim_mroute.h" |
37653d4f | 31 | #include "pim_oil.h" |
12e41d03 DL |
32 | #include "pim_str.h" |
33 | #include "pim_time.h" | |
34 | #include "pim_iface.h" | |
35 | #include "pim_macro.h" | |
c8ae3ce8 | 36 | #include "pim_rp.h" |
59471fb8 | 37 | #include "pim_oil.h" |
998af219 | 38 | #include "pim_register.h" |
56638739 | 39 | #include "pim_ifchannel.h" |
e3be0432 | 40 | #include "pim_zlookup.h" |
15a5dafe | 41 | #include "pim_ssm.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; |
04b40f02 | 121 | |
c8ae3ce8 | 122 | rpg = RP(msg->im_dst); |
04b40f02 DS |
123 | /* |
124 | * If the incoming interface is unknown OR | |
125 | * the Interface type is SSM we don't need to | |
126 | * do anything here | |
127 | */ | |
63c59d0c | 128 | if ((pim_rpf_addr_is_inaddr_none (rpg)) || |
04b40f02 | 129 | (!pim_ifp) || |
d2772e7b | 130 | (!(PIM_I_am_DR(pim_ifp)))) |
ffac1326 DS |
131 | { |
132 | if (PIM_DEBUG_MROUTE_DETAIL) | |
133 | zlog_debug ("%s: Interface is not configured correctly to handle incoming packet: Could be !DR, !pim_ifp, !SM, !RP", | |
134 | __PRETTY_FUNCTION__); | |
135 | return 0; | |
136 | } | |
04b40f02 | 137 | |
065bee4b DS |
138 | /* |
139 | * If we've received a multicast packet that isn't connected to | |
140 | * us | |
141 | */ | |
3565202d | 142 | if (!pim_if_connected_to_source (ifp, msg->im_src)) |
065bee4b | 143 | { |
6c7197b1 | 144 | if (PIM_DEBUG_MROUTE_DETAIL) |
8f547471 | 145 | zlog_debug ("%s: Received incoming packet that doesn't originate on our seg", |
065bee4b DS |
146 | __PRETTY_FUNCTION__); |
147 | return 0; | |
148 | } | |
149 | ||
4ed0af70 DS |
150 | memset (&sg, 0, sizeof (struct prefix_sg)); |
151 | sg.src = msg->im_src; | |
152 | sg.grp = msg->im_dst; | |
c29a5806 | 153 | |
e711cd3c DS |
154 | up = pim_upstream_find_or_add (&sg, ifp, PIM_UPSTREAM_FLAG_MASK_FHR, __PRETTY_FUNCTION__); |
155 | if (!up) | |
156 | { | |
157 | if (PIM_DEBUG_MROUTE) | |
158 | { | |
159 | zlog_debug("%s: Failure to add upstream information for %s", | |
160 | __PRETTY_FUNCTION__, | |
161 | pim_str_sg_dump (&sg)); | |
162 | } | |
163 | return 0; | |
59471fb8 | 164 | } |
8bfb8b67 DS |
165 | |
166 | /* | |
167 | * I moved this debug till after the actual add because | |
168 | * I want to take advantage of the up->sg_str being filled in. | |
169 | */ | |
170 | if (PIM_DEBUG_MROUTE) { | |
171 | zlog_debug("%s: Adding a Route %s for WHOLEPKT consumption", | |
172 | __PRETTY_FUNCTION__, up->sg_str); | |
173 | } | |
174 | ||
a9b59879 | 175 | PIM_UPSTREAM_FLAG_SET_SRC_STREAM(up->flags); |
5f6f65b1 DS |
176 | pim_upstream_keep_alive_timer_start (up, qpim_keep_alive_time); |
177 | ||
25a335e0 | 178 | up->channel_oil->cc.pktcnt++; |
0bf27c5c | 179 | PIM_UPSTREAM_FLAG_SET_FHR(up->flags); |
cba44481 CS |
180 | // resolve mfcc_parent prior to mroute_add in channel_add_oif |
181 | if (up->channel_oil->oil.mfcc_parent >= MAXVIFS) | |
182 | { | |
183 | int vif_index = 0; | |
184 | vif_index = | |
185 | pim_if_find_vifindex_by_ifindex (up->rpf.source_nexthop. | |
186 | interface->ifindex); | |
187 | up->channel_oil->oil.mfcc_parent = vif_index; | |
188 | } | |
15a5dafe | 189 | pim_register_join (up); |
59471fb8 | 190 | |
e355e30f DS |
191 | return 0; |
192 | } | |
12e41d03 | 193 | |
e355e30f | 194 | static int |
c29a5806 | 195 | pim_mroute_msg_wholepkt (int fd, struct interface *ifp, const char *buf) |
e355e30f | 196 | { |
59471fb8 | 197 | struct pim_interface *pim_ifp; |
4ed0af70 | 198 | struct prefix_sg sg; |
ed66602c | 199 | struct pim_rpf *rpg; |
c8ae3ce8 | 200 | const struct ip *ip_hdr; |
59471fb8 | 201 | struct pim_upstream *up; |
04b40f02 | 202 | |
c8ae3ce8 DS |
203 | ip_hdr = (const struct ip *)buf; |
204 | ||
4ed0af70 DS |
205 | memset (&sg, 0, sizeof (struct prefix_sg)); |
206 | sg.src = ip_hdr->ip_src; | |
207 | sg.grp = ip_hdr->ip_dst; | |
c8ae3ce8 | 208 | |
5074a423 | 209 | up = pim_upstream_find(&sg); |
59471fb8 | 210 | if (!up) { |
850a9f99 DS |
211 | struct prefix_sg star = sg; |
212 | star.src.s_addr = INADDR_ANY; | |
213 | ||
214 | up = pim_upstream_find(&star); | |
215 | ||
216 | if (up && PIM_UPSTREAM_FLAG_TEST_SRC_IGMP(up->flags)) | |
217 | { | |
218 | up = pim_upstream_add (&sg, ifp, PIM_UPSTREAM_FLAG_MASK_SRC_LHR, __PRETTY_FUNCTION__); | |
2830b018 DS |
219 | if (!up) |
220 | { | |
221 | if (PIM_DEBUG_MROUTE) | |
222 | zlog_debug ("%s: Unable to create upstream information for %s", | |
223 | __PRETTY_FUNCTION__, pim_str_sg_dump (&sg)); | |
224 | return 0; | |
225 | } | |
850a9f99 DS |
226 | pim_upstream_keep_alive_timer_start (up, qpim_keep_alive_time); |
227 | pim_upstream_inherited_olist (up); | |
228 | pim_upstream_switch(up, PIM_UPSTREAM_JOINED); | |
229 | ||
230 | if (PIM_DEBUG_MROUTE) | |
231 | zlog_debug ("%s: Creating %s upstream on LHR", | |
232 | __PRETTY_FUNCTION__, up->sg_str); | |
233 | return 0; | |
234 | } | |
6c7197b1 | 235 | if (PIM_DEBUG_MROUTE_DETAIL) { |
5074a423 DS |
236 | zlog_debug("%s: Unable to find upstream channel WHOLEPKT%s", |
237 | __PRETTY_FUNCTION__, pim_str_sg_dump (&sg)); | |
59471fb8 DS |
238 | } |
239 | return 0; | |
240 | } | |
241 | ||
998af219 DS |
242 | pim_ifp = up->rpf.source_nexthop.interface->info; |
243 | ||
4ed0af70 | 244 | rpg = RP(sg.grp); |
c8ae3ce8 | 245 | |
63c59d0c | 246 | if ((pim_rpf_addr_is_inaddr_none (rpg)) || |
c8ae3ce8 | 247 | (!pim_ifp) || |
d2772e7b | 248 | (!(PIM_I_am_DR(pim_ifp)))) { |
630f76b6 | 249 | if (PIM_DEBUG_MROUTE) { |
998af219 DS |
250 | zlog_debug("%s: Failed Check send packet", __PRETTY_FUNCTION__); |
251 | } | |
c8ae3ce8 | 252 | return 0; |
04b40f02 | 253 | } |
84366c7e | 254 | |
2ddab288 DS |
255 | /* |
256 | * If we've received a register suppress | |
257 | */ | |
258 | if (!up->t_rs_timer) | |
15a5dafe | 259 | { |
260 | if (pim_is_grp_ssm (sg.grp)) | |
261 | { | |
262 | if (PIM_DEBUG_PIM_REG) | |
263 | zlog_debug ("%s register forward skipped as group is SSM", | |
264 | pim_str_sg_dump (&sg)); | |
265 | return 0; | |
266 | } | |
267 | pim_register_send((uint8_t *)buf + sizeof(struct ip), | |
268 | ntohs (ip_hdr->ip_len) - sizeof (struct ip), | |
269 | pim_ifp->primary_address, rpg, 0, up); | |
270 | } | |
e355e30f DS |
271 | return 0; |
272 | } | |
12e41d03 | 273 | |
e355e30f | 274 | static int |
c29a5806 | 275 | pim_mroute_msg_wrongvif (int fd, struct interface *ifp, const struct igmpmsg *msg) |
e355e30f DS |
276 | { |
277 | struct pim_ifchannel *ch; | |
278 | struct pim_interface *pim_ifp; | |
4ed0af70 | 279 | struct prefix_sg sg; |
12e41d03 | 280 | |
c29a5806 DS |
281 | memset (&sg, 0, sizeof (struct prefix_sg)); |
282 | sg.src = msg->im_src; | |
283 | sg.grp = msg->im_dst; | |
284 | ||
e355e30f DS |
285 | /* |
286 | Send Assert(S,G) on iif as response to WRONGVIF kernel upcall. | |
12e41d03 | 287 | |
e355e30f DS |
288 | RFC 4601 4.8.2. PIM-SSM-Only Routers |
289 | ||
290 | iif is the incoming interface of the packet. | |
291 | if (iif is in inherited_olist(S,G)) { | |
292 | send Assert(S,G) on iif | |
293 | } | |
294 | */ | |
12e41d03 | 295 | |
e355e30f | 296 | if (!ifp) { |
0490c22d | 297 | if (PIM_DEBUG_MROUTE) |
c29a5806 | 298 | zlog_debug("%s: WRONGVIF (S,G)=%s could not find input interface for input_vif_index=%d", |
12e41d03 | 299 | __PRETTY_FUNCTION__, |
c29a5806 | 300 | pim_str_sg_dump (&sg), msg->im_vif); |
e355e30f DS |
301 | return -1; |
302 | } | |
12e41d03 | 303 | |
e355e30f DS |
304 | pim_ifp = ifp->info; |
305 | if (!pim_ifp) { | |
0490c22d | 306 | if (PIM_DEBUG_MROUTE) |
c29a5806 | 307 | zlog_debug("%s: WRONGVIF (S,G)=%s multicast not enabled on interface %s", |
e355e30f | 308 | __PRETTY_FUNCTION__, |
c29a5806 | 309 | pim_str_sg_dump (&sg), ifp->name); |
e355e30f DS |
310 | return -2; |
311 | } | |
12e41d03 | 312 | |
5074a423 | 313 | ch = pim_ifchannel_find(ifp, &sg); |
e355e30f | 314 | if (!ch) { |
0490c22d DS |
315 | struct prefix_sg star_g = sg; |
316 | if (PIM_DEBUG_MROUTE) | |
c29a5806 | 317 | zlog_debug("%s: WRONGVIF (S,G)=%s could not find channel on interface %s", |
e355e30f | 318 | __PRETTY_FUNCTION__, |
0490c22d DS |
319 | pim_str_sg_dump(&sg), ifp->name); |
320 | ||
321 | star_g.src.s_addr = INADDR_ANY; | |
322 | ch = pim_ifchannel_find(ifp, &star_g); | |
323 | if (!ch) { | |
324 | if (PIM_DEBUG_MROUTE) | |
325 | zlog_debug("%s: WRONGVIF (*,G)=%s could not find channel on interface %s", | |
326 | __PRETTY_FUNCTION__, | |
327 | pim_str_sg_dump(&star_g), ifp->name); | |
328 | return -3; | |
12e41d03 | 329 | } |
e355e30f | 330 | } |
12e41d03 | 331 | |
e355e30f DS |
332 | /* |
333 | RFC 4601: 4.6.1. (S,G) Assert Message State Machine | |
334 | ||
335 | Transitions from NoInfo State | |
336 | ||
337 | An (S,G) data packet arrives on interface I, AND | |
338 | CouldAssert(S,G,I)==TRUE An (S,G) data packet arrived on an | |
339 | downstream interface that is in our (S,G) outgoing interface | |
340 | list. We optimistically assume that we will be the assert | |
341 | winner for this (S,G), and so we transition to the "I am Assert | |
342 | Winner" state and perform Actions A1 (below), which will | |
343 | initiate the assert negotiation for (S,G). | |
344 | */ | |
12e41d03 | 345 | |
e355e30f | 346 | if (ch->ifassert_state != PIM_IFASSERT_NOINFO) { |
630f76b6 | 347 | if (PIM_DEBUG_MROUTE) { |
c29a5806 | 348 | zlog_debug("%s: WRONGVIF (S,G)=%s channel is not on Assert NoInfo state for interface %s", |
e355e30f | 349 | __PRETTY_FUNCTION__, |
8bfb8b67 | 350 | ch->sg_str, ifp->name); |
12e41d03 | 351 | } |
e355e30f DS |
352 | return -4; |
353 | } | |
12e41d03 | 354 | |
e355e30f | 355 | if (!PIM_IF_FLAG_TEST_COULD_ASSERT(ch->flags)) { |
630f76b6 | 356 | if (PIM_DEBUG_MROUTE) { |
c29a5806 | 357 | zlog_debug("%s: WRONGVIF (S,G)=%s interface %s is not downstream for channel", |
e355e30f | 358 | __PRETTY_FUNCTION__, |
8bfb8b67 | 359 | ch->sg_str, ifp->name); |
12e41d03 | 360 | } |
e355e30f DS |
361 | return -5; |
362 | } | |
12e41d03 | 363 | |
e355e30f | 364 | if (assert_action_a1(ch)) { |
630f76b6 | 365 | if (PIM_DEBUG_MROUTE) { |
c29a5806 | 366 | zlog_debug("%s: WRONGVIF (S,G)=%s assert_action_a1 failure on interface %s", |
e355e30f | 367 | __PRETTY_FUNCTION__, |
8bfb8b67 | 368 | ch->sg_str, ifp->name); |
12e41d03 | 369 | } |
e355e30f DS |
370 | return -6; |
371 | } | |
372 | ||
373 | return 0; | |
374 | } | |
375 | ||
08e1fe76 DS |
376 | static int |
377 | pim_mroute_msg_wrvifwhole (int fd, struct interface *ifp, const char *buf) | |
378 | { | |
379 | const struct ip *ip_hdr = (const struct ip *)buf; | |
380 | struct pim_interface *pim_ifp; | |
381 | struct pim_ifchannel *ch; | |
382 | struct pim_upstream *up; | |
b7ddd2ec | 383 | struct prefix_sg star_g; |
08e1fe76 | 384 | struct prefix_sg sg; |
5f6f65b1 | 385 | struct channel_oil *oil; |
08e1fe76 DS |
386 | |
387 | memset (&sg, 0, sizeof (struct prefix_sg)); | |
388 | sg.src = ip_hdr->ip_src; | |
389 | sg.grp = ip_hdr->ip_dst; | |
390 | ||
08e1fe76 DS |
391 | ch = pim_ifchannel_find(ifp, &sg); |
392 | if (ch) | |
393 | { | |
394 | if (PIM_DEBUG_MROUTE) | |
395 | zlog_debug ("WRVIFWHOLE (S,G)=%s found ifchannel on interface %s", | |
8bfb8b67 | 396 | ch->sg_str, ifp->name); |
08e1fe76 DS |
397 | return -1; |
398 | } | |
b7ddd2ec | 399 | |
0490c22d DS |
400 | star_g = sg; |
401 | star_g.src.s_addr = INADDR_ANY; | |
b7ddd2ec | 402 | #if 0 |
0490c22d DS |
403 | ch = pim_ifchannel_find(ifp, &star_g); |
404 | if (ch) | |
405 | { | |
406 | if (PIM_DEBUG_MROUTE) | |
407 | zlog_debug ("WRVIFWHOLE (*,G)=%s found ifchannel on interface %s", | |
408 | pim_str_sg_dump (&star_g), ifp->name); | |
409 | return -1; | |
410 | } | |
5cd11e3c | 411 | #endif |
08e1fe76 | 412 | |
8e38a2cf DS |
413 | up = pim_upstream_find (&sg); |
414 | if (up) | |
415 | { | |
b7ddd2ec | 416 | struct pim_upstream *parent; |
9244dd13 DS |
417 | struct pim_nexthop source; |
418 | struct pim_rpf *rpf = RP (sg.grp); | |
419 | if (!rpf || !rpf->source_nexthop.interface) | |
420 | return 0; | |
421 | ||
b7ddd2ec DS |
422 | /* |
423 | * If we have received a WRVIFWHOLE and are at this | |
424 | * point, we could be receiving the packet on the *,G | |
425 | * tree, let's check and if so we can safely drop | |
426 | * it. | |
427 | */ | |
428 | parent = pim_upstream_find (&star_g); | |
429 | if (parent && parent->rpf.source_nexthop.interface == ifp) | |
430 | return 0; | |
431 | ||
9244dd13 DS |
432 | pim_ifp = rpf->source_nexthop.interface->info; |
433 | ||
434 | memset (&source, 0, sizeof (source)); | |
7fe1f662 DS |
435 | /* |
436 | * If we are the fhr that means we are getting a callback during | |
437 | * the pimreg period, so I believe we can ignore this packet | |
438 | */ | |
0bf27c5c | 439 | if (!PIM_UPSTREAM_FLAG_TEST_FHR(up->flags)) |
7fe1f662 | 440 | { |
7fe1f662 | 441 | //No if channel, but upstream we are at the RP. |
88d6652e DS |
442 | if (pim_nexthop_lookup (&source, up->upstream_register, 0) == 0) |
443 | pim_register_stop_send(source.interface, &sg, pim_ifp->primary_address, up->upstream_register); | |
51e82833 DS |
444 | if (!up->channel_oil) |
445 | up->channel_oil = pim_channel_oil_add (&sg, pim_ifp->mroute_vif_index); | |
5b668dd7 | 446 | pim_upstream_inherited_olist (up); |
51e82833 | 447 | if (!up->channel_oil->installed) |
6a78764e | 448 | pim_mroute_add (up->channel_oil, __PRETTY_FUNCTION__); |
3a66b17b | 449 | pim_upstream_set_sptbit (up, ifp); |
7fe1f662 | 450 | } |
5b668dd7 DS |
451 | else |
452 | { | |
9244dd13 DS |
453 | if (I_am_RP (up->sg.grp)) |
454 | { | |
455 | if (pim_nexthop_lookup (&source, up->upstream_register, 0) == 0) | |
456 | pim_register_stop_send(source.interface, &sg, pim_ifp->primary_address, up->upstream_register); | |
457 | up->sptbit = PIM_UPSTREAM_SPTBIT_TRUE; | |
458 | } | |
5b668dd7 DS |
459 | pim_upstream_keep_alive_timer_start (up, qpim_keep_alive_time); |
460 | pim_upstream_inherited_olist (up); | |
461 | pim_mroute_msg_wholepkt (fd, ifp, buf); | |
462 | } | |
463 | return 0; | |
8e38a2cf DS |
464 | } |
465 | ||
5f6f65b1 DS |
466 | pim_ifp = ifp->info; |
467 | oil = pim_channel_oil_add (&sg, pim_ifp->mroute_vif_index); | |
468 | if (!oil->installed) | |
6a78764e | 469 | pim_mroute_add (oil, __PRETTY_FUNCTION__); |
5f6f65b1 | 470 | if (pim_if_connected_to_source (ifp, sg.src)) |
08e1fe76 | 471 | { |
e5905a3b | 472 | up = pim_upstream_add (&sg, ifp, PIM_UPSTREAM_FLAG_MASK_FHR, __PRETTY_FUNCTION__); |
5f6f65b1 DS |
473 | if (!up) |
474 | { | |
475 | if (PIM_DEBUG_MROUTE) | |
476 | zlog_debug ("%s: WRONGVIF%s unable to create upstream on interface", | |
477 | pim_str_sg_dump (&sg), ifp->name); | |
478 | return -2; | |
479 | } | |
a9b59879 | 480 | PIM_UPSTREAM_FLAG_SET_SRC_STREAM(up->flags); |
5f6f65b1 DS |
481 | pim_upstream_keep_alive_timer_start (up, qpim_keep_alive_time); |
482 | up->channel_oil = oil; | |
483 | up->channel_oil->cc.pktcnt++; | |
15a5dafe | 484 | pim_register_join (up); |
5f6f65b1 | 485 | pim_upstream_inherited_olist (up); |
08e1fe76 | 486 | |
5f6f65b1 DS |
487 | // Send the packet to the RP |
488 | pim_mroute_msg_wholepkt (fd, ifp, buf); | |
489 | } | |
08e1fe76 DS |
490 | |
491 | return 0; | |
492 | } | |
493 | ||
e355e30f DS |
494 | int pim_mroute_msg(int fd, const char *buf, int buf_size) |
495 | { | |
496 | struct interface *ifp; | |
b05b72e8 | 497 | struct pim_interface *pim_ifp; |
e355e30f DS |
498 | const struct ip *ip_hdr; |
499 | const struct igmpmsg *msg; | |
eaa54bdb DW |
500 | char ip_src_str[INET_ADDRSTRLEN] = ""; |
501 | char ip_dst_str[INET_ADDRSTRLEN] = ""; | |
502 | char src_str[INET_ADDRSTRLEN] = "<src?>"; | |
503 | char grp_str[INET_ADDRSTRLEN] = "<grp?>"; | |
b05b72e8 DW |
504 | struct in_addr ifaddr; |
505 | struct igmp_sock *igmp; | |
12e41d03 | 506 | |
e355e30f DS |
507 | ip_hdr = (const struct ip *) buf; |
508 | ||
b05b72e8 DW |
509 | if (ip_hdr->ip_p == IPPROTO_IGMP) { |
510 | ||
511 | /* We have the IP packet but we do not know which interface this packet was | |
512 | * received on. Find the interface that is on the same subnet as the source | |
513 | * of the IP packet. | |
514 | */ | |
9f0edbc9 | 515 | ifp = pim_if_lookup_address_vrf (ip_hdr->ip_src, VRF_DEFAULT); |
b05b72e8 DW |
516 | |
517 | if (!ifp) { | |
518 | if (PIM_DEBUG_MROUTE_DETAIL) { | |
519 | pim_inet4_dump("<src?>", ip_hdr->ip_src, ip_src_str, sizeof(ip_src_str)); | |
520 | pim_inet4_dump("<dst?>", ip_hdr->ip_dst, ip_dst_str, sizeof(ip_dst_str)); | |
521 | ||
9f0edbc9 | 522 | zlog_warn("%s: igmp kernel upcall could not find usable interface for %s -> %s", |
b05b72e8 DW |
523 | __PRETTY_FUNCTION__, |
524 | ip_src_str, | |
525 | ip_dst_str); | |
526 | } | |
527 | return 0; | |
528 | } | |
b05b72e8 DW |
529 | pim_ifp = ifp->info; |
530 | ifaddr = pim_find_primary_addr(ifp); | |
531 | igmp = pim_igmp_sock_lookup_ifaddr(pim_ifp->igmp_socket_list, ifaddr); | |
532 | ||
02e5bd72 | 533 | if (PIM_DEBUG_MROUTE) { |
b05b72e8 DW |
534 | pim_inet4_dump("<src?>", ip_hdr->ip_src, ip_src_str, sizeof(ip_src_str)); |
535 | pim_inet4_dump("<dst?>", ip_hdr->ip_dst, ip_dst_str, sizeof(ip_dst_str)); | |
536 | ||
02e5bd72 DS |
537 | zlog_warn("%s: igmp kernel upcall on %s(%p) for %s -> %s", |
538 | __PRETTY_FUNCTION__, ifp->name, igmp, ip_src_str, ip_dst_str); | |
b05b72e8 | 539 | } |
02e5bd72 DS |
540 | if (igmp) |
541 | pim_igmp_packet(igmp, (char *)buf, buf_size); | |
b05b72e8 DW |
542 | |
543 | } else if (ip_hdr->ip_p) { | |
6c7197b1 | 544 | if (PIM_DEBUG_MROUTE_DETAIL) { |
e5d33c83 DS |
545 | pim_inet4_dump("<src?>", ip_hdr->ip_src, src_str, sizeof(src_str)); |
546 | pim_inet4_dump("<grp?>", ip_hdr->ip_dst, grp_str, sizeof(grp_str)); | |
b05b72e8 DW |
547 | zlog_debug("%s: no kernel upcall proto=%d src: %s dst: %s msg_size=%d", |
548 | __PRETTY_FUNCTION__, ip_hdr->ip_p, src_str, grp_str, buf_size); | |
e355e30f | 549 | } |
e355e30f | 550 | |
b05b72e8 DW |
551 | } else { |
552 | msg = (const struct igmpmsg *) buf; | |
e355e30f | 553 | |
b05b72e8 | 554 | ifp = pim_if_find_by_vif_index(msg->im_vif); |
e355e30f | 555 | |
38f380f5 DS |
556 | if (!ifp) |
557 | return 0; | |
b05b72e8 DW |
558 | if (PIM_DEBUG_MROUTE) { |
559 | pim_inet4_dump("<src?>", msg->im_src, src_str, sizeof(src_str)); | |
560 | pim_inet4_dump("<grp?>", msg->im_dst, grp_str, sizeof(grp_str)); | |
561 | 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", | |
562 | __PRETTY_FUNCTION__, | |
563 | igmpmsgtype2str[msg->im_msgtype], | |
564 | msg->im_msgtype, | |
565 | ip_hdr->ip_p, | |
566 | fd, | |
567 | src_str, | |
568 | grp_str, | |
569 | ifp->name, | |
570 | msg->im_vif, buf_size); | |
571 | } | |
e355e30f | 572 | |
b05b72e8 DW |
573 | switch (msg->im_msgtype) { |
574 | case IGMPMSG_WRONGVIF: | |
575 | return pim_mroute_msg_wrongvif(fd, ifp, msg); | |
576 | break; | |
577 | case IGMPMSG_NOCACHE: | |
578 | return pim_mroute_msg_nocache(fd, ifp, msg); | |
579 | break; | |
580 | case IGMPMSG_WHOLEPKT: | |
581 | return pim_mroute_msg_wholepkt(fd, ifp, (const char *)msg); | |
582 | break; | |
583 | case IGMPMSG_WRVIFWHOLE: | |
584 | return pim_mroute_msg_wrvifwhole (fd, ifp, (const char *)msg); | |
585 | break; | |
586 | default: | |
587 | break; | |
588 | } | |
e355e30f | 589 | } |
12e41d03 DL |
590 | |
591 | return 0; | |
592 | } | |
593 | ||
12e41d03 DL |
594 | static int mroute_read(struct thread *t) |
595 | { | |
6806e04d DS |
596 | static long long count; |
597 | char buf[10000]; | |
598 | int result = 0; | |
599 | int cont = 1; | |
12e41d03 | 600 | int fd; |
6806e04d | 601 | int rd; |
12e41d03 DL |
602 | |
603 | fd = THREAD_FD(t); | |
12e41d03 | 604 | |
6806e04d DS |
605 | while (cont) |
606 | { | |
607 | rd = read(fd, buf, sizeof(buf)); | |
608 | if (rd < 0) { | |
609 | if (errno == EINTR) | |
610 | continue; | |
611 | if (errno == EWOULDBLOCK || errno == EAGAIN) | |
e43223bc DS |
612 | break; |
613 | ||
6806e04d DS |
614 | if (PIM_DEBUG_MROUTE) |
615 | zlog_warn("%s: failure reading fd=%d: errno=%d: %s", | |
616 | __PRETTY_FUNCTION__, fd, errno, safe_strerror(errno)); | |
617 | goto done; | |
618 | } | |
12e41d03 | 619 | |
6806e04d DS |
620 | result = pim_mroute_msg(fd, buf, rd); |
621 | ||
622 | count++; | |
8e4c9ef3 | 623 | if (count % qpim_packet_process == 0) |
6806e04d DS |
624 | cont = 0; |
625 | } | |
12e41d03 | 626 | /* Keep reading */ |
6806e04d | 627 | done: |
12e41d03 DL |
628 | mroute_read_on(); |
629 | ||
630 | return result; | |
631 | } | |
632 | ||
633 | static void mroute_read_on() | |
634 | { | |
ffa2c898 QY |
635 | thread_add_read(master, mroute_read, 0, qpim_mroute_socket_fd, |
636 | &qpim_mroute_socket_reader); | |
12e41d03 DL |
637 | } |
638 | ||
639 | static void mroute_read_off() | |
640 | { | |
641 | THREAD_OFF(qpim_mroute_socket_reader); | |
642 | } | |
643 | ||
644 | int pim_mroute_socket_enable() | |
645 | { | |
646 | int fd; | |
647 | ||
12e41d03 DL |
648 | if ( pimd_privs.change (ZPRIVS_RAISE) ) |
649 | zlog_err ("pim_mroute_socket_enable: could not raise privs, %s", | |
650 | safe_strerror (errno) ); | |
651 | ||
652 | fd = socket(AF_INET, SOCK_RAW, IPPROTO_IGMP); | |
653 | ||
654 | if ( pimd_privs.change (ZPRIVS_LOWER) ) | |
655 | zlog_err ("pim_mroute_socket_enable: could not lower privs, %s", | |
656 | safe_strerror (errno) ); | |
657 | ||
658 | if (fd < 0) { | |
659 | zlog_warn("Could not create mroute socket: errno=%d: %s", | |
660 | errno, safe_strerror(errno)); | |
661 | return -2; | |
662 | } | |
663 | ||
664 | if (pim_mroute_set(fd, 1)) { | |
665 | zlog_warn("Could not enable mroute on socket fd=%d: errno=%d: %s", | |
666 | fd, errno, safe_strerror(errno)); | |
667 | close(fd); | |
668 | return -3; | |
669 | } | |
670 | ||
671 | qpim_mroute_socket_fd = fd; | |
b45cefcb | 672 | |
12e41d03 DL |
673 | qpim_mroute_socket_creation = pim_time_monotonic_sec(); |
674 | mroute_read_on(); | |
675 | ||
12e41d03 DL |
676 | return 0; |
677 | } | |
678 | ||
679 | int pim_mroute_socket_disable() | |
680 | { | |
12e41d03 DL |
681 | if (pim_mroute_set(qpim_mroute_socket_fd, 0)) { |
682 | zlog_warn("Could not disable mroute on socket fd=%d: errno=%d: %s", | |
683 | qpim_mroute_socket_fd, errno, safe_strerror(errno)); | |
684 | return -2; | |
685 | } | |
686 | ||
687 | if (close(qpim_mroute_socket_fd)) { | |
688 | zlog_warn("Failure closing mroute socket: fd=%d errno=%d: %s", | |
689 | qpim_mroute_socket_fd, errno, safe_strerror(errno)); | |
690 | return -3; | |
691 | } | |
692 | ||
693 | mroute_read_off(); | |
694 | qpim_mroute_socket_fd = -1; | |
695 | ||
12e41d03 DL |
696 | return 0; |
697 | } | |
698 | ||
699 | /* | |
700 | For each network interface (e.g., physical or a virtual tunnel) that | |
701 | would be used for multicast forwarding, a corresponding multicast | |
702 | interface must be added to the kernel. | |
703 | */ | |
744d91b3 | 704 | int pim_mroute_add_vif(struct interface *ifp, struct in_addr ifaddr, unsigned char flags) |
12e41d03 | 705 | { |
744d91b3 | 706 | struct pim_interface *pim_ifp = ifp->info; |
12e41d03 DL |
707 | struct vifctl vc; |
708 | int err; | |
709 | ||
12e41d03 | 710 | memset(&vc, 0, sizeof(vc)); |
744d91b3 | 711 | vc.vifc_vifi = pim_ifp->mroute_vif_index; |
b3f2bf7c | 712 | #ifdef VIFF_USE_IFINDEX |
744d91b3 | 713 | vc.vifc_lcl_ifindex = ifp->ifindex; |
b3f2bf7c RW |
714 | #else |
715 | if (ifaddr.s_addr == INADDR_ANY) { | |
716 | zlog_warn("%s: unnumbered interfaces are not supported on this platform", | |
717 | __PRETTY_FUNCTION__); | |
718 | return -1; | |
719 | } | |
720 | memcpy(&vc.vifc_lcl_addr, &ifaddr, sizeof(vc.vifc_lcl_addr)); | |
721 | #endif | |
b45cefcb | 722 | vc.vifc_flags = flags; |
12e41d03 DL |
723 | vc.vifc_threshold = PIM_MROUTE_MIN_TTL; |
724 | vc.vifc_rate_limit = 0; | |
12e41d03 DL |
725 | |
726 | #ifdef PIM_DVMRP_TUNNEL | |
727 | if (vc.vifc_flags & VIFF_TUNNEL) { | |
728 | memcpy(&vc.vifc_rmt_addr, &vif_remote_addr, sizeof(vc.vifc_rmt_addr)); | |
729 | } | |
730 | #endif | |
731 | ||
b45cefcb | 732 | err = setsockopt(qpim_mroute_socket_fd, IPPROTO_IP, MRT_ADD_VIF, (void*) &vc, sizeof(vc)); |
12e41d03 | 733 | if (err) { |
eaa54bdb | 734 | char ifaddr_str[INET_ADDRSTRLEN]; |
12e41d03 DL |
735 | |
736 | pim_inet4_dump("<ifaddr?>", ifaddr, ifaddr_str, sizeof(ifaddr_str)); | |
737 | ||
59471fb8 | 738 | zlog_warn("%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_ADD_VIF,vif_index=%d,ifaddr=%s,flag=%d): errno=%d: %s", |
12e41d03 | 739 | __FILE__, __PRETTY_FUNCTION__, |
744d91b3 | 740 | qpim_mroute_socket_fd, ifp->ifindex, ifaddr_str, flags, |
3d7765d7 | 741 | errno, safe_strerror(errno)); |
12e41d03 DL |
742 | return -2; |
743 | } | |
744 | ||
745 | return 0; | |
746 | } | |
747 | ||
748 | int pim_mroute_del_vif(int vif_index) | |
749 | { | |
750 | struct vifctl vc; | |
751 | int err; | |
752 | ||
e81d9709 CS |
753 | if (PIM_DEBUG_MROUTE) |
754 | { | |
755 | struct interface *ifp = pim_if_find_by_vif_index (vif_index); | |
756 | zlog_debug ("%s %s: Del Vif %d (%s) ", __FILE__, | |
757 | __PRETTY_FUNCTION__, vif_index, ifp ? ifp->name : "NULL"); | |
758 | } | |
759 | ||
12e41d03 DL |
760 | memset(&vc, 0, sizeof(vc)); |
761 | vc.vifc_vifi = vif_index; | |
762 | ||
763 | err = setsockopt(qpim_mroute_socket_fd, IPPROTO_IP, MRT_DEL_VIF, (void*) &vc, sizeof(vc)); | |
764 | if (err) { | |
12e41d03 DL |
765 | zlog_warn("%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_DEL_VIF,vif_index=%d): errno=%d: %s", |
766 | __FILE__, __PRETTY_FUNCTION__, | |
767 | qpim_mroute_socket_fd, vif_index, | |
3d7765d7 | 768 | errno, safe_strerror(errno)); |
12e41d03 DL |
769 | return -2; |
770 | } | |
771 | ||
772 | return 0; | |
773 | } | |
774 | ||
6a78764e | 775 | int pim_mroute_add(struct channel_oil *c_oil, const char *name) |
12e41d03 DL |
776 | { |
777 | int err; | |
2ca35b3d | 778 | int orig = 0; |
0365f56b | 779 | int orig_iif_vif = 0; |
12e41d03 DL |
780 | |
781 | qpim_mroute_add_last = pim_time_monotonic_sec(); | |
782 | ++qpim_mroute_add_events; | |
783 | ||
429a291b | 784 | /* Do not install route if incoming interface is undefined. */ |
1bc98276 | 785 | if (c_oil->oil.mfcc_parent >= MAXVIFS) |
429a291b CS |
786 | { |
787 | if (PIM_DEBUG_MROUTE) | |
788 | { | |
789 | char buf[1000]; | |
790 | zlog_debug("%s(%s) %s Attempting to add vifi that is invalid to mroute table", | |
791 | __PRETTY_FUNCTION__, name, pim_channel_oil_dump (c_oil, buf, sizeof(buf))); | |
792 | } | |
793 | return -2; | |
794 | } | |
12e41d03 | 795 | |
d3aded99 DS |
796 | /* The linux kernel *expects* the incoming |
797 | * vif to be part of the outgoing list | |
798 | * in the case of a (*,G). | |
799 | */ | |
c171d6d8 | 800 | if (c_oil->oil.mfcc_origin.s_addr == INADDR_ANY) |
d3aded99 | 801 | { |
c171d6d8 DS |
802 | orig = c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent]; |
803 | c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent] = 1; | |
d3aded99 DS |
804 | } |
805 | ||
0365f56b DS |
806 | /* |
807 | * If we have an unresolved cache entry for the S,G | |
808 | * it is owned by the pimreg for the incoming IIF | |
809 | * So set pimreg as the IIF temporarily to cause | |
810 | * the packets to be forwarded. Then set it | |
811 | * to the correct IIF afterwords. | |
812 | */ | |
813 | if (!c_oil->installed && c_oil->oil.mfcc_origin.s_addr != INADDR_ANY && | |
814 | c_oil->oil.mfcc_parent != 0) | |
815 | { | |
816 | orig_iif_vif = c_oil->oil.mfcc_parent; | |
817 | c_oil->oil.mfcc_parent = 0; | |
818 | } | |
12e41d03 | 819 | err = setsockopt(qpim_mroute_socket_fd, IPPROTO_IP, MRT_ADD_MFC, |
c171d6d8 | 820 | &c_oil->oil, sizeof(c_oil->oil)); |
d3aded99 | 821 | |
0365f56b DS |
822 | if (!err && !c_oil->installed && c_oil->oil.mfcc_origin.s_addr != INADDR_ANY && |
823 | orig_iif_vif != 0) | |
824 | { | |
825 | c_oil->oil.mfcc_parent = orig_iif_vif; | |
826 | err = setsockopt (qpim_mroute_socket_fd, IPPROTO_IP, MRT_ADD_MFC, | |
827 | &c_oil->oil, sizeof (c_oil->oil)); | |
828 | } | |
829 | ||
c171d6d8 DS |
830 | if (c_oil->oil.mfcc_origin.s_addr == INADDR_ANY) |
831 | c_oil->oil.mfcc_ttls[c_oil->oil.mfcc_parent] = orig; | |
d3aded99 | 832 | |
12e41d03 | 833 | if (err) { |
12e41d03 DL |
834 | zlog_warn("%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_ADD_MFC): errno=%d: %s", |
835 | __FILE__, __PRETTY_FUNCTION__, | |
836 | qpim_mroute_socket_fd, | |
3d7765d7 | 837 | errno, safe_strerror(errno)); |
12e41d03 DL |
838 | return -2; |
839 | } | |
840 | ||
6a78764e DS |
841 | if (PIM_DEBUG_MROUTE) |
842 | { | |
781a1745 DS |
843 | char buf[1000]; |
844 | zlog_debug("%s(%s), Added Route: %s", | |
845 | __PRETTY_FUNCTION__, name, | |
846 | pim_channel_oil_dump (c_oil, buf, sizeof(buf))); | |
6a78764e DS |
847 | } |
848 | ||
58302dc7 | 849 | c_oil->installed = 1; |
12e41d03 DL |
850 | return 0; |
851 | } | |
852 | ||
6a78764e | 853 | int pim_mroute_del (struct channel_oil *c_oil, const char *name) |
12e41d03 DL |
854 | { |
855 | int err; | |
856 | ||
857 | qpim_mroute_del_last = pim_time_monotonic_sec(); | |
858 | ++qpim_mroute_del_events; | |
859 | ||
429a291b CS |
860 | if (!c_oil->installed) |
861 | { | |
862 | if (PIM_DEBUG_MROUTE) | |
863 | { | |
864 | char buf[1000]; | |
865 | zlog_debug("%s %s: vifi %d for route is %s not installed, do not need to send del req. ", | |
866 | __FILE__, __PRETTY_FUNCTION__, c_oil->oil.mfcc_parent, | |
867 | pim_channel_oil_dump (c_oil, buf, sizeof(buf))); | |
868 | } | |
869 | return -2; | |
870 | } | |
871 | ||
c171d6d8 | 872 | err = setsockopt(qpim_mroute_socket_fd, IPPROTO_IP, MRT_DEL_MFC, &c_oil->oil, sizeof(c_oil->oil)); |
12e41d03 | 873 | if (err) { |
05ca4827 DS |
874 | if (PIM_DEBUG_MROUTE) |
875 | zlog_warn("%s %s: failure: setsockopt(fd=%d,IPPROTO_IP,MRT_DEL_MFC): errno=%d: %s", | |
876 | __FILE__, __PRETTY_FUNCTION__, | |
877 | qpim_mroute_socket_fd, | |
878 | errno, safe_strerror(errno)); | |
12e41d03 DL |
879 | return -2; |
880 | } | |
881 | ||
6a78764e DS |
882 | if (PIM_DEBUG_MROUTE) |
883 | { | |
781a1745 DS |
884 | char buf[1000]; |
885 | zlog_debug("%s(%s), Deleted Route: %s", | |
886 | __PRETTY_FUNCTION__, name, | |
887 | pim_channel_oil_dump (c_oil, buf, sizeof(buf))); | |
6a78764e | 888 | } |
781a1745 | 889 | |
cba44481 | 890 | //Reset kernel installed flag |
58302dc7 DS |
891 | c_oil->installed = 0; |
892 | ||
12e41d03 DL |
893 | return 0; |
894 | } | |
3667e8a0 DS |
895 | |
896 | void | |
897 | pim_mroute_update_counters (struct channel_oil *c_oil) | |
898 | { | |
899 | struct sioc_sg_req sgreq; | |
900 | ||
3667e8a0 DS |
901 | c_oil->cc.oldpktcnt = c_oil->cc.pktcnt; |
902 | c_oil->cc.oldbytecnt = c_oil->cc.bytecnt; | |
903 | c_oil->cc.oldwrong_if = c_oil->cc.wrong_if; | |
904 | ||
c7b1183f DS |
905 | if (!c_oil->installed) |
906 | { | |
907 | c_oil->cc.lastused = 100 * qpim_keep_alive_time; | |
908 | if (PIM_DEBUG_MROUTE) | |
909 | { | |
910 | struct prefix_sg sg; | |
911 | ||
912 | sg.src = c_oil->oil.mfcc_origin; | |
913 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
914 | if (PIM_DEBUG_MROUTE) | |
915 | zlog_debug("Channel(%s) is not installed no need to collect data from kernel", | |
916 | pim_str_sg_dump (&sg)); | |
917 | } | |
918 | return; | |
919 | } | |
920 | ||
921 | memset (&sgreq, 0, sizeof(sgreq)); | |
922 | sgreq.src = c_oil->oil.mfcc_origin; | |
923 | sgreq.grp = c_oil->oil.mfcc_mcastgrp; | |
924 | ||
51e82833 | 925 | pim_zlookup_sg_statistics (c_oil); |
3667e8a0 DS |
926 | if (ioctl (qpim_mroute_socket_fd, SIOCGETSGCNT, &sgreq)) |
927 | { | |
c7b1183f DS |
928 | if (PIM_DEBUG_MROUTE) |
929 | { | |
930 | struct prefix_sg sg; | |
931 | ||
932 | sg.src = c_oil->oil.mfcc_origin; | |
933 | sg.grp = c_oil->oil.mfcc_mcastgrp; | |
934 | ||
935 | zlog_warn ("ioctl(SIOCGETSGCNT=%lu) failure for (S,G)=(%s): errno=%d: %s", | |
936 | (unsigned long)SIOCGETSGCNT, | |
937 | pim_str_sg_dump (&sg), | |
938 | errno, | |
939 | safe_strerror(errno)); | |
940 | } | |
3667e8a0 DS |
941 | return; |
942 | } | |
943 | ||
944 | c_oil->cc.pktcnt = sgreq.pktcnt; | |
945 | c_oil->cc.bytecnt = sgreq.bytecnt; | |
946 | c_oil->cc.wrong_if = sgreq.wrong_if; | |
947 | ||
948 | return; | |
949 | } |