]>
Commit | Line | Data |
---|---|---|
ca10883e DS |
1 | /* |
2 | Copyright 2011 by Matthieu Boutier and Juliusz Chroboczek | |
3 | ||
4 | Permission is hereby granted, free of charge, to any person obtaining a copy | |
5 | of this software and associated documentation files (the "Software"), to deal | |
6 | in the Software without restriction, including without limitation the rights | |
7 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
8 | copies of the Software, and to permit persons to whom the Software is | |
9 | furnished to do so, subject to the following conditions: | |
10 | ||
11 | The above copyright notice and this permission notice shall be included in | |
12 | all copies or substantial portions of the Software. | |
13 | ||
14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
17 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
18 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
19 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
20 | THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | #include <zebra.h> | |
24 | #include "memory.h" | |
25 | #include "log.h" | |
26 | #include "command.h" | |
27 | #include "prefix.h" | |
28 | #include "vector.h" | |
29 | #include "distribute.h" | |
30 | ||
31 | #include "babel_main.h" | |
32 | #include "util.h" | |
33 | #include "kernel.h" | |
34 | #include "babel_interface.h" | |
35 | #include "message.h" | |
36 | #include "route.h" | |
37 | #include "babel_zebra.h" | |
38 | #include "neighbour.h" | |
39 | #include "route.h" | |
40 | #include "xroute.h" | |
41 | #include "babel_memory.h" | |
42 | ||
43 | #define IS_ENABLE(ifp) (babel_enable_if_lookup(ifp->name) >= 0) | |
44 | ||
45 | static int babel_enable_if_lookup (const char *ifname); | |
46 | static int babel_enable_if_add (const char *ifname); | |
47 | static int babel_enable_if_delete (const char *ifname); | |
48 | static int interface_recalculate(struct interface *ifp); | |
49 | static int interface_reset(struct interface *ifp); | |
50 | static int babel_if_new_hook (struct interface *ifp); | |
51 | static int babel_if_delete_hook (struct interface *ifp); | |
52 | static int interface_config_write (struct vty *vty); | |
53 | static babel_interface_nfo * babel_interface_allocate (void); | |
54 | static void babel_interface_free (babel_interface_nfo *bi); | |
55 | ||
56 | ||
57 | static vector babel_enable_if; /* enable interfaces (by cmd). */ | |
58 | static struct cmd_node babel_interface_node = /* babeld's interface node. */ | |
59 | { | |
60 | INTERFACE_NODE, | |
61 | "%s(config-if)# ", | |
62 | 1 /* VTYSH */ | |
63 | }; | |
64 | ||
65 | ||
66 | int | |
67 | babel_interface_up (int cmd, struct zclient *client, zebra_size_t length, vrf_id_t vrf) | |
68 | { | |
69 | struct stream *s = NULL; | |
70 | struct interface *ifp = NULL; | |
71 | ||
72 | debugf(BABEL_DEBUG_IF, "receive a 'interface up'"); | |
73 | ||
74 | s = zclient->ibuf; | |
75 | ifp = zebra_interface_state_read(s, vrf); /* it updates iflist */ | |
76 | ||
77 | if (ifp == NULL) { | |
78 | return 0; | |
79 | } | |
80 | ||
81 | interface_recalculate(ifp); | |
82 | return 0; | |
83 | } | |
84 | ||
85 | int | |
86 | babel_interface_down (int cmd, struct zclient *client, zebra_size_t length, vrf_id_t vrf) | |
87 | { | |
88 | struct stream *s = NULL; | |
89 | struct interface *ifp = NULL; | |
90 | ||
91 | debugf(BABEL_DEBUG_IF, "receive a 'interface down'"); | |
92 | ||
93 | s = zclient->ibuf; | |
94 | ifp = zebra_interface_state_read(s, vrf); /* it updates iflist */ | |
95 | ||
96 | if (ifp == NULL) { | |
97 | return 0; | |
98 | } | |
99 | ||
100 | interface_reset(ifp); | |
101 | return 0; | |
102 | } | |
103 | ||
104 | int | |
105 | babel_interface_add (int cmd, struct zclient *client, zebra_size_t length, vrf_id_t vrf) | |
106 | { | |
107 | struct interface *ifp = NULL; | |
108 | ||
109 | debugf(BABEL_DEBUG_IF, "receive a 'interface add'"); | |
110 | ||
111 | /* read and add the interface in the iflist. */ | |
112 | ifp = zebra_interface_add_read (zclient->ibuf, vrf); | |
113 | ||
114 | if (ifp == NULL) { | |
115 | return 0; | |
116 | } | |
117 | ||
118 | interface_recalculate(ifp); | |
119 | return 0; | |
120 | } | |
121 | ||
122 | int | |
123 | babel_interface_delete (int cmd, struct zclient *client, zebra_size_t length, vrf_id_t vrf) | |
124 | { | |
125 | struct interface *ifp; | |
126 | struct stream *s; | |
127 | ||
128 | debugf(BABEL_DEBUG_IF, "receive a 'interface delete'"); | |
129 | ||
130 | s = zclient->ibuf; | |
131 | ifp = zebra_interface_state_read(s, vrf); /* it updates iflist */ | |
132 | ||
133 | if (ifp == NULL) | |
134 | return 0; | |
135 | ||
136 | if (IS_ENABLE(ifp)) | |
137 | interface_reset(ifp); | |
138 | ||
139 | /* To support pseudo interface do not free interface structure. */ | |
140 | /* if_delete(ifp); */ | |
141 | ifp->ifindex = IFINDEX_INTERNAL; | |
142 | ||
143 | return 0; | |
144 | } | |
145 | ||
146 | int | |
147 | babel_interface_address_add (int cmd, struct zclient *client, | |
148 | zebra_size_t length, vrf_id_t vrf) | |
149 | { | |
150 | babel_interface_nfo *babel_ifp; | |
151 | struct connected *ifc; | |
152 | struct prefix *prefix; | |
153 | ||
154 | debugf(BABEL_DEBUG_IF, "receive a 'interface address add'"); | |
155 | ||
156 | ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD, | |
157 | zclient->ibuf, vrf); | |
158 | ||
159 | if (ifc == NULL) | |
160 | return 0; | |
161 | ||
162 | prefix = ifc->address; | |
163 | ||
164 | if (prefix->family == AF_INET) { | |
165 | flush_interface_routes(ifc->ifp, 0); | |
166 | babel_ifp = babel_get_if_nfo(ifc->ifp); | |
167 | if (babel_ifp->ipv4 == NULL) { | |
168 | babel_ifp->ipv4 = malloc(4); | |
169 | if (babel_ifp->ipv4 == NULL) { | |
170 | zlog_err("not einough memory"); | |
171 | } else { | |
172 | memcpy(babel_ifp->ipv4, &prefix->u.prefix4, 4); | |
173 | } | |
174 | } | |
175 | } | |
176 | ||
177 | send_request(ifc->ifp, NULL, 0); | |
178 | send_update(ifc->ifp, 0, NULL, 0); | |
179 | ||
180 | return 0; | |
181 | } | |
182 | ||
183 | int | |
184 | babel_interface_address_delete (int cmd, struct zclient *client, | |
185 | zebra_size_t length, vrf_id_t vrf) | |
186 | { | |
187 | babel_interface_nfo *babel_ifp; | |
188 | struct connected *ifc; | |
189 | struct prefix *prefix; | |
190 | ||
191 | debugf(BABEL_DEBUG_IF, "receive a 'interface address delete'"); | |
192 | ||
193 | ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE, | |
194 | zclient->ibuf, vrf); | |
195 | ||
196 | if (ifc == NULL) | |
197 | return 0; | |
198 | ||
199 | prefix = ifc->address; | |
200 | ||
201 | if (prefix->family == AF_INET) { | |
202 | flush_interface_routes(ifc->ifp, 0); | |
203 | babel_ifp = babel_get_if_nfo(ifc->ifp); | |
204 | if (babel_ifp->ipv4 != NULL | |
205 | && memcmp(babel_ifp->ipv4, &prefix->u.prefix4, 4) == 0) { | |
206 | free(babel_ifp->ipv4); | |
207 | babel_ifp->ipv4 = NULL; | |
208 | } | |
209 | } | |
210 | ||
211 | send_request(ifc->ifp, NULL, 0); | |
212 | send_update(ifc->ifp, 0, NULL, 0); | |
213 | ||
214 | return 0; | |
215 | } | |
216 | ||
217 | /* Lookup function. */ | |
218 | static int | |
219 | babel_enable_if_lookup (const char *ifname) | |
220 | { | |
221 | unsigned int i; | |
222 | char *str; | |
223 | ||
224 | for (i = 0; i < vector_active (babel_enable_if); i++) | |
225 | if ((str = vector_slot (babel_enable_if, i)) != NULL) | |
226 | if (strcmp (str, ifname) == 0) | |
227 | return i; | |
228 | return -1; | |
229 | } | |
230 | ||
231 | /* Add interface to babel_enable_if. */ | |
232 | static int | |
233 | babel_enable_if_add (const char *ifname) | |
234 | { | |
235 | int ret; | |
236 | struct interface *ifp = NULL; | |
237 | ||
238 | ret = babel_enable_if_lookup (ifname); | |
239 | if (ret >= 0) | |
240 | return -1; | |
241 | ||
242 | vector_set (babel_enable_if, strdup (ifname)); | |
243 | ||
244 | ifp = if_lookup_by_name(ifname, VRF_DEFAULT); | |
245 | if (ifp != NULL) | |
246 | interface_recalculate(ifp); | |
247 | ||
248 | return 1; | |
249 | } | |
250 | ||
251 | /* Delete interface from babel_enable_if. */ | |
252 | static int | |
253 | babel_enable_if_delete (const char *ifname) | |
254 | { | |
255 | int babel_enable_if_index; | |
256 | char *str; | |
257 | struct interface *ifp = NULL; | |
258 | ||
259 | babel_enable_if_index = babel_enable_if_lookup (ifname); | |
260 | if (babel_enable_if_index < 0) | |
261 | return -1; | |
262 | ||
263 | str = vector_slot (babel_enable_if, babel_enable_if_index); | |
264 | free (str); | |
265 | vector_unset (babel_enable_if, babel_enable_if_index); | |
266 | ||
267 | ifp = if_lookup_by_name(ifname, VRF_DEFAULT); | |
268 | if (ifp != NULL) | |
269 | interface_reset(ifp); | |
270 | ||
271 | return 1; | |
272 | } | |
273 | ||
274 | /* [Babel Command] Babel enable on specified interface or matched network. */ | |
275 | DEFUN (babel_network, | |
276 | babel_network_cmd, | |
277 | "network IF_OR_ADDR", | |
278 | "Enable Babel protocol on specified interface or network.\n" | |
279 | "Interface or address") | |
280 | { | |
281 | int ret; | |
282 | struct prefix p; | |
283 | ||
284 | ret = str2prefix (argv[1]->arg, &p); | |
285 | ||
286 | /* Given string is: */ | |
287 | if (ret) /* an IPv4 or v6 network */ | |
288 | return CMD_ERR_NO_MATCH; /* not implemented yet */ | |
289 | else /* an interface name */ | |
290 | ret = babel_enable_if_add (argv[1]->arg); | |
291 | ||
292 | if (ret < 0) { | |
293 | vty_out (vty, "There is same network configuration %s%s", argv[1]->arg, | |
294 | VTY_NEWLINE); | |
295 | return CMD_WARNING; | |
296 | } | |
297 | ||
298 | return CMD_SUCCESS; | |
299 | } | |
300 | ||
301 | /* [Babel Command] Babel enable on specified interface or matched network. */ | |
302 | DEFUN (no_babel_network, | |
303 | no_babel_network_cmd, | |
304 | "no network IF_OR_ADDR", | |
305 | NO_STR | |
306 | "Disable Babel protocol on specified interface or network.\n" | |
307 | "Interface or address") | |
308 | { | |
309 | int ret; | |
310 | struct prefix p; | |
311 | ||
312 | ret = str2prefix (argv[2]->arg, &p); | |
313 | ||
314 | /* Given string is: */ | |
315 | if (ret) /* an IPv4 or v6 network */ | |
316 | return CMD_ERR_NO_MATCH; /* not implemented yet */ | |
317 | else /* an interface name */ | |
318 | ret = babel_enable_if_delete (argv[2]->arg); | |
319 | ||
320 | if (ret < 0) { | |
321 | vty_out (vty, "can't find network %s%s", argv[2]->arg, | |
322 | VTY_NEWLINE); | |
323 | return CMD_WARNING; | |
324 | } | |
325 | ||
326 | return CMD_SUCCESS; | |
327 | } | |
328 | ||
329 | /* There are a number of interface parameters that must be changed when | |
330 | an interface becomes wired/wireless. In Quagga, they cannot be | |
331 | configured separately. */ | |
332 | ||
333 | static void | |
334 | babel_set_wired_internal(babel_interface_nfo *babel_ifp, int wired) | |
335 | { | |
336 | if(wired) { | |
337 | babel_ifp->flags |= BABEL_IF_WIRED; | |
338 | babel_ifp->flags |= BABEL_IF_SPLIT_HORIZON; | |
339 | babel_ifp->cost = BABEL_DEFAULT_RXCOST_WIRED; | |
340 | babel_ifp->channel = BABEL_IF_CHANNEL_NONINTERFERING; | |
341 | babel_ifp->flags &= ~BABEL_IF_LQ; | |
342 | } else { | |
343 | babel_ifp->flags &= ~BABEL_IF_WIRED; | |
344 | babel_ifp->flags &= ~BABEL_IF_SPLIT_HORIZON; | |
345 | babel_ifp->cost = BABEL_DEFAULT_RXCOST_WIRELESS; | |
346 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
347 | babel_ifp->flags |= BABEL_IF_LQ; | |
348 | } | |
349 | ||
350 | } | |
351 | ||
352 | /* [Interface Command] Tell the interface is wire. */ | |
353 | DEFUN (babel_set_wired, | |
354 | babel_set_wired_cmd, | |
355 | "babel wired", | |
356 | "Babel interface commands\n" | |
357 | "Enable wired optimisations") | |
358 | { | |
359 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
360 | babel_interface_nfo *babel_ifp; | |
361 | ||
362 | babel_ifp = babel_get_if_nfo(ifp); | |
363 | ||
364 | assert (babel_ifp != NULL); | |
365 | babel_set_wired_internal(babel_ifp, 1); | |
366 | return CMD_SUCCESS; | |
367 | } | |
368 | ||
369 | /* [Interface Command] Tell the interface is wireless (default). */ | |
370 | DEFUN (babel_set_wireless, | |
371 | babel_set_wireless_cmd, | |
372 | "babel wireless", | |
373 | "Babel interface commands\n" | |
374 | "Disable wired optimiations (assume wireless)") | |
375 | { | |
376 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
377 | babel_interface_nfo *babel_ifp; | |
378 | ||
379 | babel_ifp = babel_get_if_nfo(ifp); | |
380 | ||
381 | assert (babel_ifp != NULL); | |
382 | babel_set_wired_internal(babel_ifp, 0); | |
383 | return CMD_SUCCESS; | |
384 | } | |
385 | ||
386 | /* [Interface Command] Enable split horizon. */ | |
387 | DEFUN (babel_split_horizon, | |
388 | babel_split_horizon_cmd, | |
389 | "babel split-horizon", | |
390 | "Babel interface commands\n" | |
391 | "Enable split horizon processing") | |
392 | { | |
393 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
394 | babel_interface_nfo *babel_ifp; | |
395 | ||
396 | babel_ifp = babel_get_if_nfo(ifp); | |
397 | ||
398 | assert (babel_ifp != NULL); | |
399 | babel_ifp->flags |= BABEL_IF_SPLIT_HORIZON; | |
400 | return CMD_SUCCESS; | |
401 | } | |
402 | ||
403 | /* [Interface Command] Disable split horizon (default). */ | |
404 | DEFUN (no_babel_split_horizon, | |
405 | no_babel_split_horizon_cmd, | |
406 | "no babel split-horizon", | |
407 | NO_STR | |
408 | "Babel interface commands\n" | |
409 | "Disable split horizon processing") | |
410 | { | |
411 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
412 | babel_interface_nfo *babel_ifp; | |
413 | ||
414 | babel_ifp = babel_get_if_nfo(ifp); | |
415 | ||
416 | assert (babel_ifp != NULL); | |
417 | babel_ifp->flags &= ~BABEL_IF_SPLIT_HORIZON; | |
418 | return CMD_SUCCESS; | |
419 | } | |
420 | ||
421 | /* [Interface Command]. */ | |
422 | DEFUN (babel_set_hello_interval, | |
423 | babel_set_hello_interval_cmd, | |
424 | "babel hello-interval (20-655340)", | |
425 | "Babel interface commands\n" | |
426 | "Time between scheduled hellos\n" | |
427 | "Milliseconds\n") | |
428 | { | |
429 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
430 | babel_interface_nfo *babel_ifp; | |
431 | int interval; | |
432 | ||
433 | VTY_GET_INTEGER_RANGE("milliseconds", interval, argv[2]->arg, 20, 10 * 0xFFFE); | |
434 | ||
435 | babel_ifp = babel_get_if_nfo(ifp); | |
436 | assert (babel_ifp != NULL); | |
437 | ||
438 | babel_ifp->hello_interval = interval; | |
439 | return CMD_SUCCESS; | |
440 | } | |
441 | ||
442 | /* [Interface Command]. */ | |
443 | DEFUN (babel_set_update_interval, | |
444 | babel_set_update_interval_cmd, | |
445 | "babel update-interval (20-655340)", | |
446 | "Babel interface commands\n" | |
447 | "Time between scheduled updates\n" | |
448 | "Milliseconds\n") | |
449 | { | |
450 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
451 | babel_interface_nfo *babel_ifp; | |
452 | int interval; | |
453 | ||
454 | VTY_GET_INTEGER_RANGE("milliseconds", interval, argv[2]->arg, 20, 10 * 0xFFFE); | |
455 | ||
456 | babel_ifp = babel_get_if_nfo(ifp); | |
457 | assert (babel_ifp != NULL); | |
458 | ||
459 | babel_ifp->update_interval = interval; | |
460 | return CMD_SUCCESS; | |
461 | } | |
462 | ||
463 | DEFUN (babel_set_rxcost, | |
464 | babel_set_rxcost_cmd, | |
465 | "babel rxcost (1-65534)", | |
466 | "Babel interface commands\n" | |
467 | "Rxcost multiplier\n" | |
468 | "Units") | |
469 | { | |
470 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
471 | babel_interface_nfo *babel_ifp; | |
472 | int rxcost; | |
473 | ||
474 | VTY_GET_INTEGER_RANGE("units", rxcost, argv[2]->arg, 1, 0x10000 - 1); | |
475 | ||
476 | babel_ifp = babel_get_if_nfo(ifp); | |
477 | assert (babel_ifp != NULL); | |
478 | ||
479 | babel_ifp->cost = rxcost; | |
480 | return CMD_SUCCESS; | |
481 | } | |
482 | ||
483 | DEFUN (babel_set_rtt_decay, | |
484 | babel_set_rtt_decay_cmd, | |
485 | "babel rtt-decay (1-256)", | |
486 | "Babel interface commands\n" | |
487 | "Decay factor for exponential moving average of RTT samples\n" | |
488 | "Units of 1/256") | |
489 | { | |
490 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
491 | babel_interface_nfo *babel_ifp; | |
492 | int decay; | |
493 | ||
494 | VTY_GET_INTEGER_RANGE("units", decay, argv[2]->arg, 1, 256); | |
495 | ||
496 | babel_ifp = babel_get_if_nfo(ifp); | |
497 | assert (babel_ifp != NULL); | |
498 | ||
499 | babel_ifp->rtt_decay = decay; | |
500 | return CMD_SUCCESS; | |
501 | } | |
502 | ||
503 | DEFUN (babel_set_rtt_min, | |
504 | babel_set_rtt_min_cmd, | |
505 | "babel rtt-min (1-65535)", | |
506 | "Babel interface commands\n" | |
507 | "Minimum RTT starting for increasing cost\n" | |
508 | "Milliseconds") | |
509 | { | |
510 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
511 | babel_interface_nfo *babel_ifp; | |
512 | int rtt; | |
513 | ||
514 | VTY_GET_INTEGER_RANGE("milliseconds", rtt, argv[2]->arg, 1, 65535); | |
515 | ||
516 | babel_ifp = babel_get_if_nfo(ifp); | |
517 | assert (babel_ifp != NULL); | |
518 | ||
519 | babel_ifp->rtt_min = rtt; | |
520 | return CMD_SUCCESS; | |
521 | } | |
522 | ||
523 | DEFUN (babel_set_rtt_max, | |
524 | babel_set_rtt_max_cmd, | |
525 | "babel rtt-max (1-65535)", | |
526 | "Babel interface commands\n" | |
527 | "Maximum RTT\n" | |
528 | "Milliseconds") | |
529 | { | |
530 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
531 | babel_interface_nfo *babel_ifp; | |
532 | int rtt; | |
533 | ||
534 | VTY_GET_INTEGER_RANGE("milliseconds", rtt, argv[2]->arg, 1, 65535); | |
535 | ||
536 | babel_ifp = babel_get_if_nfo(ifp); | |
537 | assert (babel_ifp != NULL); | |
538 | ||
539 | babel_ifp->rtt_max = rtt; | |
540 | return CMD_SUCCESS; | |
541 | } | |
542 | ||
543 | DEFUN (babel_set_max_rtt_penalty, | |
544 | babel_set_max_rtt_penalty_cmd, | |
545 | "babel max-rtt-penalty (0-65535)", | |
546 | "Babel interface commands\n" | |
547 | "Maximum additional cost due to RTT\n" | |
548 | "Milliseconds") | |
549 | { | |
550 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
551 | babel_interface_nfo *babel_ifp; | |
552 | int penalty; | |
553 | ||
554 | VTY_GET_INTEGER_RANGE("milliseconds", penalty, argv[2]->arg, 0, 65535); | |
555 | ||
556 | babel_ifp = babel_get_if_nfo(ifp); | |
557 | assert (babel_ifp != NULL); | |
558 | ||
559 | babel_ifp->max_rtt_penalty = penalty; | |
560 | return CMD_SUCCESS; | |
561 | } | |
562 | ||
563 | DEFUN (babel_set_enable_timestamps, | |
564 | babel_set_enable_timestamps_cmd, | |
565 | "babel enable-timestamps", | |
566 | "Babel interface commands\n" | |
567 | "Enable timestamps\n" | |
568 | "No attributes") | |
569 | { | |
570 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
571 | babel_interface_nfo *babel_ifp; | |
572 | ||
573 | babel_ifp = babel_get_if_nfo(ifp); | |
574 | assert (babel_ifp != NULL); | |
575 | ||
576 | babel_ifp->flags |= BABEL_IF_TIMESTAMPS; | |
577 | return CMD_SUCCESS; | |
578 | } | |
579 | ||
580 | DEFUN (no_babel_set_enable_timestamps, | |
581 | no_babel_set_enable_timestamps_cmd, | |
582 | "no babel enable-timestamps", | |
583 | "Babel interface commands\n" | |
584 | "Disable timestamps\n" | |
585 | "No attributes") | |
586 | { | |
587 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
588 | babel_interface_nfo *babel_ifp; | |
589 | ||
590 | babel_ifp = babel_get_if_nfo(ifp); | |
591 | assert (babel_ifp != NULL); | |
592 | ||
593 | babel_ifp->flags &= ~BABEL_IF_TIMESTAMPS; | |
594 | return CMD_SUCCESS; | |
595 | } | |
596 | ||
597 | DEFUN (babel_set_channel, | |
598 | babel_set_channel_cmd, | |
599 | "babel channel (1-254)", | |
600 | "Babel interface commands\n" | |
601 | "Channel number for diversity routing\n" | |
602 | "Number") | |
603 | { | |
604 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
605 | babel_interface_nfo *babel_ifp; | |
606 | int channel; | |
607 | ||
608 | VTY_GET_INTEGER_RANGE("channel", channel, argv[2]->arg, 1, 254); | |
609 | ||
610 | babel_ifp = babel_get_if_nfo(ifp); | |
611 | assert (babel_ifp != NULL); | |
612 | ||
613 | babel_ifp->channel = channel; | |
614 | return CMD_SUCCESS; | |
615 | } | |
616 | ||
617 | DEFUN (babel_set_channel_interfering, | |
618 | babel_set_channel_interfering_cmd, | |
619 | "babel channel interfering", | |
620 | "Babel interface commands\n" | |
621 | "Channel number for diversity routing\n" | |
622 | "Mark channel as interfering") | |
623 | { | |
624 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
625 | babel_interface_nfo *babel_ifp; | |
626 | ||
627 | babel_ifp = babel_get_if_nfo(ifp); | |
628 | assert (babel_ifp != NULL); | |
629 | ||
630 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
631 | return CMD_SUCCESS; | |
632 | } | |
633 | ||
634 | DEFUN (babel_set_channel_noninterfering, | |
635 | babel_set_channel_noninterfering_cmd, | |
636 | "babel channel noninterfering", | |
637 | "Babel interface commands\n" | |
638 | "Channel number for diversity routing\n" | |
639 | "Mark channel as noninterfering") | |
640 | { | |
641 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
642 | babel_interface_nfo *babel_ifp; | |
643 | ||
644 | babel_ifp = babel_get_if_nfo(ifp); | |
645 | assert (babel_ifp != NULL); | |
646 | ||
647 | babel_ifp->channel = BABEL_IF_CHANNEL_NONINTERFERING; | |
648 | return CMD_SUCCESS; | |
649 | } | |
650 | ||
651 | /* This should be no more than half the hello interval, so that hellos | |
652 | aren't sent late. The result is in milliseconds. */ | |
653 | unsigned | |
654 | jitter(babel_interface_nfo *babel_ifp, int urgent) | |
655 | { | |
656 | unsigned interval = babel_ifp->hello_interval; | |
657 | if(urgent) | |
658 | interval = MIN(interval, 100); | |
659 | else | |
660 | interval = MIN(interval, 4000); | |
661 | return roughly(interval) / 4; | |
662 | } | |
663 | ||
664 | unsigned | |
665 | update_jitter(babel_interface_nfo *babel_ifp, int urgent) | |
666 | { | |
667 | unsigned interval = babel_ifp->hello_interval; | |
668 | if(urgent) | |
669 | interval = MIN(interval, 100); | |
670 | else | |
671 | interval = MIN(interval, 4000); | |
672 | return roughly(interval); | |
673 | } | |
674 | ||
675 | /* calculate babeld's specific datas of an interface (change when the interface | |
676 | change) */ | |
677 | static int | |
678 | interface_recalculate(struct interface *ifp) | |
679 | { | |
680 | babel_interface_nfo *babel_ifp = babel_get_if_nfo(ifp); | |
681 | unsigned char *tmp = NULL; | |
682 | int mtu, rc; | |
683 | struct ipv6_mreq mreq; | |
684 | ||
685 | if (!IS_ENABLE(ifp)) | |
686 | return -1; | |
687 | ||
688 | if (!if_is_operative(ifp) || !CHECK_FLAG(ifp->flags, IFF_RUNNING)) { | |
689 | interface_reset(ifp); | |
690 | return -1; | |
691 | } | |
692 | ||
693 | babel_ifp->flags |= BABEL_IF_IS_UP; | |
694 | ||
695 | mtu = MIN(ifp->mtu, ifp->mtu6); | |
696 | ||
697 | /* We need to be able to fit at least two messages into a packet, | |
698 | so MTUs below 116 require lower layer fragmentation. */ | |
699 | /* In IPv6, the minimum MTU is 1280, and every host must be able | |
700 | to reassemble up to 1500 bytes, but I'd rather not rely on this. */ | |
701 | if(mtu < 128) { | |
702 | debugf(BABEL_DEBUG_IF, "Suspiciously low MTU %d on interface %s (%d).", | |
703 | mtu, ifp->name, ifp->ifindex); | |
704 | mtu = 128; | |
705 | } | |
706 | ||
707 | /* 4 for Babel header; 40 for IPv6 header, 8 for UDP header, 12 for good luck. */ | |
708 | babel_ifp->bufsize = mtu - 4 - 60; | |
709 | tmp = babel_ifp->sendbuf; | |
710 | babel_ifp->sendbuf = realloc(babel_ifp->sendbuf, babel_ifp->bufsize); | |
711 | if(babel_ifp->sendbuf == NULL) { | |
712 | zlog_err("Couldn't reallocate sendbuf."); | |
713 | free(tmp); | |
714 | babel_ifp->bufsize = 0; | |
715 | return -1; | |
716 | } | |
717 | tmp = NULL; | |
718 | ||
719 | rc = resize_receive_buffer(mtu); | |
720 | if(rc < 0) | |
721 | zlog_warn("couldn't resize " | |
722 | "receive buffer for interface %s (%d) (%d bytes).\n", | |
723 | ifp->name, ifp->ifindex, mtu); | |
724 | ||
725 | memset(&mreq, 0, sizeof(mreq)); | |
726 | memcpy(&mreq.ipv6mr_multiaddr, protocol_group, 16); | |
727 | mreq.ipv6mr_interface = ifp->ifindex; | |
728 | ||
729 | rc = setsockopt(protocol_socket, IPPROTO_IPV6, IPV6_JOIN_GROUP, | |
730 | (char*)&mreq, sizeof(mreq)); | |
731 | if(rc < 0) { | |
732 | zlog_err("setsockopt(IPV6_JOIN_GROUP) on interface '%s': %s", | |
733 | ifp->name, safe_strerror(errno)); | |
734 | /* This is probably due to a missing link-local address, | |
735 | so down this interface, and wait until the main loop | |
736 | tries to up it again. */ | |
737 | interface_reset(ifp); | |
738 | return -1; | |
739 | } | |
740 | ||
741 | set_timeout(&babel_ifp->hello_timeout, babel_ifp->hello_interval); | |
742 | set_timeout(&babel_ifp->update_timeout, babel_ifp->update_interval); | |
743 | send_hello(ifp); | |
744 | send_request(ifp, NULL, 0); | |
745 | ||
746 | update_interface_metric(ifp); | |
747 | ||
748 | debugf(BABEL_DEBUG_COMMON, | |
749 | "Upped interface %s (%s, cost=%d, channel=%d%s).", | |
750 | ifp->name, | |
751 | (babel_ifp->flags & BABEL_IF_WIRED) ? "wired" : "wireless", | |
752 | babel_ifp->cost, | |
753 | babel_ifp->channel, | |
754 | babel_ifp->ipv4 ? ", IPv4" : ""); | |
755 | ||
756 | if(rc > 0) | |
757 | send_update(ifp, 0, NULL, 0); | |
758 | ||
759 | return 1; | |
760 | } | |
761 | ||
762 | /* Reset the interface as it was new: it's not removed from the interface list, | |
763 | and may be considered as a upped interface. */ | |
764 | static int | |
765 | interface_reset(struct interface *ifp) | |
766 | { | |
767 | int rc; | |
768 | struct ipv6_mreq mreq; | |
769 | babel_interface_nfo *babel_ifp = babel_get_if_nfo(ifp); | |
770 | ||
771 | if (!(babel_ifp->flags & BABEL_IF_IS_UP)) | |
772 | return 0; | |
773 | ||
774 | debugf(BABEL_DEBUG_IF, "interface reset: %s", ifp->name); | |
775 | babel_ifp->flags &= ~BABEL_IF_IS_UP; | |
776 | ||
777 | flush_interface_routes(ifp, 0); | |
778 | babel_ifp->buffered = 0; | |
779 | babel_ifp->bufsize = 0; | |
780 | free(babel_ifp->sendbuf); | |
781 | babel_ifp->num_buffered_updates = 0; | |
782 | babel_ifp->update_bufsize = 0; | |
783 | if(babel_ifp->buffered_updates) | |
784 | free(babel_ifp->buffered_updates); | |
785 | babel_ifp->buffered_updates = NULL; | |
786 | babel_ifp->sendbuf = NULL; | |
787 | ||
788 | if(ifp->ifindex > 0) { | |
789 | memset(&mreq, 0, sizeof(mreq)); | |
790 | memcpy(&mreq.ipv6mr_multiaddr, protocol_group, 16); | |
791 | mreq.ipv6mr_interface = ifp->ifindex; | |
792 | rc = setsockopt(protocol_socket, IPPROTO_IPV6, IPV6_LEAVE_GROUP, | |
793 | (char*)&mreq, sizeof(mreq)); | |
794 | if(rc < 0) | |
795 | zlog_err("setsockopt(IPV6_LEAVE_GROUP) on interface '%s': %s", | |
796 | ifp->name, safe_strerror(errno)); | |
797 | } | |
798 | ||
799 | update_interface_metric(ifp); | |
800 | ||
801 | debugf(BABEL_DEBUG_COMMON,"Upped network %s (%s, cost=%d%s).", | |
802 | ifp->name, | |
803 | (babel_ifp->flags & BABEL_IF_WIRED) ? "wired" : "wireless", | |
804 | babel_ifp->cost, | |
805 | babel_ifp->ipv4 ? ", IPv4" : ""); | |
806 | ||
807 | return 1; | |
808 | } | |
809 | ||
810 | /* Send retraction to all, and reset all interfaces statistics. */ | |
811 | void | |
812 | babel_interface_close_all(void) | |
813 | { | |
814 | struct interface *ifp = NULL; | |
815 | struct listnode *linklist_node = NULL; | |
816 | ||
817 | FOR_ALL_INTERFACES(ifp, linklist_node) { | |
818 | if(!if_up(ifp)) | |
819 | continue; | |
820 | send_wildcard_retraction(ifp); | |
821 | /* Make sure that we expire quickly from our neighbours' | |
822 | association caches. */ | |
823 | send_hello_noupdate(ifp, 10); | |
824 | flushbuf(ifp); | |
825 | usleep(roughly(1000)); | |
826 | gettime(&babel_now); | |
827 | } | |
828 | FOR_ALL_INTERFACES(ifp, linklist_node) { | |
829 | if(!if_up(ifp)) | |
830 | continue; | |
831 | /* Make sure they got it. */ | |
832 | send_wildcard_retraction(ifp); | |
833 | send_hello_noupdate(ifp, 1); | |
834 | flushbuf(ifp); | |
835 | usleep(roughly(10000)); | |
836 | gettime(&babel_now); | |
837 | interface_reset(ifp); | |
838 | } | |
839 | } | |
840 | ||
841 | /* return "true" if address is one of our ipv6 addresses */ | |
842 | int | |
843 | is_interface_ll_address(struct interface *ifp, const unsigned char *address) | |
844 | { | |
845 | struct connected *connected; | |
846 | struct listnode *node; | |
847 | ||
848 | if(!if_up(ifp)) | |
849 | return 0; | |
850 | ||
851 | FOR_ALL_INTERFACES_ADDRESSES(ifp, connected, node) { | |
852 | if(connected->address->family == AF_INET6 && | |
853 | memcmp(&connected->address->u.prefix6, address, 16) == 0) | |
854 | return 1; | |
855 | } | |
856 | ||
857 | return 0; | |
858 | } | |
859 | ||
860 | static void | |
861 | show_babel_interface_sub (struct vty *vty, struct interface *ifp) | |
862 | { | |
863 | int is_up; | |
864 | babel_interface_nfo *babel_ifp; | |
865 | ||
866 | vty_out (vty, "%s is %s%s", ifp->name, | |
867 | ((is_up = if_is_operative(ifp)) ? "up" : "down"), VTY_NEWLINE); | |
868 | vty_out (vty, " ifindex %u, MTU %u bytes %s%s", | |
869 | ifp->ifindex, MIN(ifp->mtu, ifp->mtu6), if_flag_dump(ifp->flags), VTY_NEWLINE); | |
870 | ||
871 | if (!IS_ENABLE(ifp)) | |
872 | { | |
873 | vty_out (vty, " Babel protocol is not enabled on this interface%s", VTY_NEWLINE); | |
874 | return; | |
875 | } | |
876 | if (!is_up) | |
877 | { | |
878 | vty_out (vty, " Babel protocol is enabled, but not running on this interface%s", VTY_NEWLINE); | |
879 | return; | |
880 | } | |
881 | babel_ifp = babel_get_if_nfo (ifp); | |
882 | vty_out (vty, " Babel protocol is running on this interface%s", VTY_NEWLINE); | |
883 | vty_out (vty, " Operating mode is \"%s\"%s", | |
884 | CHECK_FLAG (babel_ifp->flags, BABEL_IF_WIRED) ? "wired" : "wireless", VTY_NEWLINE); | |
885 | vty_out (vty, " Split horizon mode is %s%s", | |
886 | CHECK_FLAG (babel_ifp->flags, BABEL_IF_SPLIT_HORIZON) ? "On" : "Off", VTY_NEWLINE); | |
887 | vty_out (vty, " Hello interval is %u ms%s", babel_ifp->hello_interval, VTY_NEWLINE); | |
888 | vty_out (vty, " Update interval is %u ms%s", babel_ifp->update_interval, VTY_NEWLINE); | |
889 | vty_out (vty, " Rxcost multiplier is %u%s", babel_ifp->cost, VTY_NEWLINE); | |
890 | } | |
891 | ||
892 | DEFUN (show_babel_interface, | |
893 | show_babel_interface_cmd, | |
894 | "show babel interface [IFNAME]", | |
895 | SHOW_STR | |
896 | "Babel information\n" | |
897 | "Interface information\n" | |
898 | "Interface\n") | |
899 | { | |
900 | struct interface *ifp; | |
901 | struct listnode *node; | |
902 | ||
903 | if (argc == 3) | |
904 | { | |
905 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist(VRF_DEFAULT), node, ifp)) | |
906 | show_babel_interface_sub (vty, ifp); | |
907 | return CMD_SUCCESS; | |
908 | } | |
909 | if ((ifp = if_lookup_by_name (argv[3]->arg, VRF_DEFAULT)) == NULL) | |
910 | { | |
911 | vty_out (vty, "No such interface name%s", VTY_NEWLINE); | |
912 | return CMD_WARNING; | |
913 | } | |
914 | show_babel_interface_sub (vty, ifp); | |
915 | return CMD_SUCCESS; | |
916 | } | |
917 | ||
918 | static void | |
919 | show_babel_neighbour_sub (struct vty *vty, struct neighbour *neigh) | |
920 | { | |
921 | vty_out (vty, | |
922 | "Neighbour %s dev %s reach %04x rxcost %d txcost %d " | |
923 | "rtt %s rttcost %d%s.%s", | |
924 | format_address(neigh->address), | |
925 | neigh->ifp->name, | |
926 | neigh->reach, | |
927 | neighbour_rxcost(neigh), | |
928 | neigh->txcost, | |
929 | format_thousands(neigh->rtt), | |
930 | neighbour_rttcost(neigh), | |
931 | if_up(neigh->ifp) ? "" : " (down)", | |
932 | VTY_NEWLINE); | |
933 | } | |
934 | ||
935 | DEFUN (show_babel_neighbour, | |
936 | show_babel_neighbour_cmd, | |
937 | "show babel neighbor [IFNAME]", | |
938 | SHOW_STR | |
939 | "Babel information\n" | |
940 | "Print neighbors\n" | |
941 | "Interface\n") | |
942 | { | |
943 | struct neighbour *neigh; | |
944 | struct interface *ifp; | |
945 | ||
946 | if (argc == 3) { | |
947 | FOR_ALL_NEIGHBOURS(neigh) { | |
948 | show_babel_neighbour_sub(vty, neigh); | |
949 | } | |
950 | return CMD_SUCCESS; | |
951 | } | |
952 | if ((ifp = if_lookup_by_name (argv[3]->arg, VRF_DEFAULT)) == NULL) | |
953 | { | |
954 | vty_out (vty, "No such interface name%s", VTY_NEWLINE); | |
955 | return CMD_WARNING; | |
956 | } | |
957 | FOR_ALL_NEIGHBOURS(neigh) { | |
958 | if(ifp->ifindex == neigh->ifp->ifindex) { | |
959 | show_babel_neighbour_sub(vty, neigh); | |
960 | } | |
961 | } | |
962 | return CMD_SUCCESS; | |
963 | } | |
964 | ||
965 | static int | |
966 | babel_prefix_eq(struct prefix *prefix, unsigned char *p, int plen) | |
967 | { | |
968 | if(prefix->family == AF_INET6) { | |
969 | if(prefix->prefixlen != plen || | |
970 | memcmp(&prefix->u.prefix6, p, 16) != 0) | |
971 | return 0; | |
972 | } else if(prefix->family == AF_INET) { | |
973 | if(plen < 96 || !v4mapped(p) || prefix->prefixlen != plen - 96 || | |
974 | memcmp(&prefix->u.prefix4, p + 12, 4) != 0) | |
975 | return 0; | |
976 | } else { | |
977 | return 0; | |
978 | } | |
979 | ||
980 | return 1; | |
981 | } | |
982 | ||
983 | static void | |
984 | show_babel_routes_sub(struct babel_route *route, struct vty *vty, | |
985 | struct prefix *prefix) | |
986 | { | |
987 | const unsigned char *nexthop = | |
988 | memcmp(route->nexthop, route->neigh->address, 16) == 0 ? | |
989 | NULL : route->nexthop; | |
990 | char channels[100]; | |
991 | ||
992 | if(prefix && !babel_prefix_eq(prefix, route->src->prefix, route->src->plen)) | |
993 | return; | |
994 | ||
995 | if(route->channels[0] == 0) | |
996 | channels[0] = '\0'; | |
997 | else { | |
998 | int k, j = 0; | |
999 | snprintf(channels, 100, " chan ("); | |
1000 | j = strlen(channels); | |
1001 | for(k = 0; k < DIVERSITY_HOPS; k++) { | |
1002 | if(route->channels[k] == 0) | |
1003 | break; | |
1004 | if(k > 0) | |
1005 | channels[j++] = ','; | |
1006 | snprintf(channels + j, 100 - j, "%d", route->channels[k]); | |
1007 | j = strlen(channels); | |
1008 | } | |
1009 | snprintf(channels + j, 100 - j, ")"); | |
1010 | if(k == 0) | |
1011 | channels[0] = '\0'; | |
1012 | } | |
1013 | ||
1014 | vty_out(vty, | |
1015 | "%s metric %d refmetric %d id %s seqno %d%s age %d " | |
1016 | "via %s neigh %s%s%s%s%s", | |
1017 | format_prefix(route->src->prefix, route->src->plen), | |
1018 | route_metric(route), route->refmetric, | |
1019 | format_eui64(route->src->id), | |
1020 | (int)route->seqno, | |
1021 | channels, | |
1022 | (int)(babel_now.tv_sec - route->time), | |
1023 | route->neigh->ifp->name, | |
1024 | format_address(route->neigh->address), | |
1025 | nexthop ? " nexthop " : "", | |
1026 | nexthop ? format_address(nexthop) : "", | |
1027 | route->installed ? " (installed)" : | |
1028 | route_feasible(route) ? " (feasible)" : "", | |
1029 | VTY_NEWLINE); | |
1030 | } | |
1031 | ||
1032 | static void | |
1033 | show_babel_xroutes_sub (struct xroute *xroute, struct vty *vty, | |
1034 | struct prefix *prefix) | |
1035 | { | |
1036 | if(prefix && !babel_prefix_eq(prefix, xroute->prefix, xroute->plen)) | |
1037 | return; | |
1038 | ||
1039 | vty_out(vty, "%s metric %d (exported)%s", | |
1040 | format_prefix(xroute->prefix, xroute->plen), | |
1041 | xroute->metric, | |
1042 | VTY_NEWLINE); | |
1043 | } | |
1044 | ||
1045 | DEFUN (show_babel_route, | |
1046 | show_babel_route_cmd, | |
1047 | "show babel route", | |
1048 | SHOW_STR | |
1049 | "Babel information\n" | |
1050 | "Babel internal routing table\n") | |
1051 | { | |
1052 | struct route_stream *routes = NULL; | |
1053 | struct xroute_stream *xroutes = NULL; | |
1054 | routes = route_stream(0); | |
1055 | if(routes) { | |
1056 | while(1) { | |
1057 | struct babel_route *route = route_stream_next(routes); | |
1058 | if(route == NULL) | |
1059 | break; | |
1060 | show_babel_routes_sub(route, vty, NULL); | |
1061 | } | |
1062 | route_stream_done(routes); | |
1063 | } else { | |
1064 | zlog_err("Couldn't allocate route stream."); | |
1065 | } | |
dd15627e | 1066 | xroutes = xroute_stream(); |
ca10883e DS |
1067 | if(xroutes) { |
1068 | while(1) { | |
1069 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1070 | if(xroute == NULL) | |
1071 | break; | |
1072 | show_babel_xroutes_sub(xroute, vty, NULL); | |
1073 | } | |
1074 | xroute_stream_done(xroutes); | |
1075 | } else { | |
1076 | zlog_err("Couldn't allocate route stream."); | |
1077 | } | |
1078 | return CMD_SUCCESS; | |
1079 | } | |
1080 | ||
1081 | DEFUN (show_babel_route_prefix, | |
1082 | show_babel_route_prefix_cmd, | |
1083 | "show babel route <A.B.C.D/M|X:X::X:X/M>", | |
1084 | SHOW_STR | |
1085 | "Babel information\n" | |
f7bf422e | 1086 | "Babel internal routing table\n" |
ca10883e DS |
1087 | "IPv4 prefix <network>/<length>\n" |
1088 | "IPv6 prefix <network>/<length>\n") | |
1089 | { | |
1090 | struct route_stream *routes = NULL; | |
1091 | struct xroute_stream *xroutes = NULL; | |
1092 | struct prefix prefix; | |
1093 | int ret; | |
1094 | ||
1095 | ret = str2prefix(argv[3]->arg, &prefix); | |
1096 | if(ret == 0) { | |
1097 | vty_out (vty, "%% Malformed address%s", VTY_NEWLINE); | |
1098 | return CMD_WARNING; | |
1099 | } | |
1100 | ||
1101 | routes = route_stream(0); | |
1102 | if(routes) { | |
1103 | while(1) { | |
1104 | struct babel_route *route = route_stream_next(routes); | |
1105 | if(route == NULL) | |
1106 | break; | |
1107 | show_babel_routes_sub(route, vty, &prefix); | |
1108 | } | |
1109 | route_stream_done(routes); | |
1110 | } else { | |
1111 | zlog_err("Couldn't allocate route stream."); | |
1112 | } | |
dd15627e | 1113 | xroutes = xroute_stream(); |
ca10883e DS |
1114 | if(xroutes) { |
1115 | while(1) { | |
1116 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1117 | if(xroute == NULL) | |
1118 | break; | |
1119 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1120 | } | |
1121 | xroute_stream_done(xroutes); | |
1122 | } else { | |
1123 | zlog_err("Couldn't allocate route stream."); | |
1124 | } | |
1125 | return CMD_SUCCESS; | |
1126 | } | |
1127 | ||
1128 | ||
1129 | DEFUN (show_babel_route_addr, | |
1130 | show_babel_route_addr_cmd, | |
1131 | "show babel route A.B.C.D", | |
1132 | SHOW_STR | |
1133 | "Babel information\n" | |
f7bf422e | 1134 | "Babel internal routing table\n" |
ca10883e DS |
1135 | "IPv4 address <network>/<length>\n") |
1136 | { | |
1137 | struct in_addr addr; | |
1138 | char buf[INET_ADDRSTRLEN + 8]; | |
1139 | struct route_stream *routes = NULL; | |
1140 | struct xroute_stream *xroutes = NULL; | |
1141 | struct prefix prefix; | |
1142 | int ret; | |
1143 | ||
1144 | ret = inet_aton (argv[3]->arg, &addr); | |
1145 | if (ret <= 0) { | |
1146 | vty_out (vty, "%% Malformed address%s", VTY_NEWLINE); | |
1147 | return CMD_WARNING; | |
1148 | } | |
1149 | ||
1150 | /* Quagga has no convenient prefix constructors. */ | |
1151 | snprintf(buf, sizeof(buf), "%s/%d", inet_ntoa(addr), 32); | |
1152 | ||
1153 | ret = str2prefix(buf, &prefix); | |
1154 | if (ret == 0) { | |
1155 | vty_out (vty, "%% Parse error -- this shouldn't happen%s", VTY_NEWLINE); | |
1156 | return CMD_WARNING; | |
1157 | } | |
1158 | ||
1159 | routes = route_stream(0); | |
1160 | if(routes) { | |
1161 | while(1) { | |
1162 | struct babel_route *route = route_stream_next(routes); | |
1163 | if(route == NULL) | |
1164 | break; | |
1165 | show_babel_routes_sub(route, vty, &prefix); | |
1166 | } | |
1167 | route_stream_done(routes); | |
1168 | } else { | |
1169 | zlog_err("Couldn't allocate route stream."); | |
1170 | } | |
dd15627e | 1171 | xroutes = xroute_stream(); |
ca10883e DS |
1172 | if(xroutes) { |
1173 | while(1) { | |
1174 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1175 | if(xroute == NULL) | |
1176 | break; | |
1177 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1178 | } | |
1179 | xroute_stream_done(xroutes); | |
1180 | } else { | |
1181 | zlog_err("Couldn't allocate route stream."); | |
1182 | } | |
1183 | return CMD_SUCCESS; | |
1184 | } | |
1185 | ||
1186 | DEFUN (show_babel_route_addr6, | |
1187 | show_babel_route_addr6_cmd, | |
1188 | "show babel route X:X::X:X", | |
1189 | SHOW_STR | |
1190 | "Babel information\n" | |
f7bf422e | 1191 | "Babel internal routing table\n" |
ca10883e DS |
1192 | "IPv6 address <network>/<length>\n") |
1193 | { | |
1194 | struct in6_addr addr; | |
1195 | char buf1[INET6_ADDRSTRLEN]; | |
1196 | char buf[INET6_ADDRSTRLEN + 8]; | |
1197 | struct route_stream *routes = NULL; | |
1198 | struct xroute_stream *xroutes = NULL; | |
1199 | struct prefix prefix; | |
1200 | int ret; | |
1201 | ||
1202 | ret = inet_pton (AF_INET6, argv[3]->arg, &addr); | |
1203 | if (ret <= 0) { | |
1204 | vty_out (vty, "%% Malformed address%s", VTY_NEWLINE); | |
1205 | return CMD_WARNING; | |
1206 | } | |
1207 | ||
1208 | /* Quagga has no convenient prefix constructors. */ | |
1209 | snprintf(buf, sizeof(buf), "%s/%d", | |
1210 | inet_ntop(AF_INET6, &addr, buf1, sizeof(buf1)), 128); | |
1211 | ||
1212 | ret = str2prefix(buf, &prefix); | |
1213 | if (ret == 0) { | |
1214 | vty_out (vty, "%% Parse error -- this shouldn't happen%s", VTY_NEWLINE); | |
1215 | return CMD_WARNING; | |
1216 | } | |
1217 | ||
1218 | routes = route_stream(0); | |
1219 | if(routes) { | |
1220 | while(1) { | |
1221 | struct babel_route *route = route_stream_next(routes); | |
1222 | if(route == NULL) | |
1223 | break; | |
1224 | show_babel_routes_sub(route, vty, &prefix); | |
1225 | } | |
1226 | route_stream_done(routes); | |
1227 | } else { | |
1228 | zlog_err("Couldn't allocate route stream."); | |
1229 | } | |
dd15627e | 1230 | xroutes = xroute_stream(); |
ca10883e DS |
1231 | if(xroutes) { |
1232 | while(1) { | |
1233 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1234 | if(xroute == NULL) | |
1235 | break; | |
1236 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1237 | } | |
1238 | xroute_stream_done(xroutes); | |
1239 | } else { | |
1240 | zlog_err("Couldn't allocate route stream."); | |
1241 | } | |
1242 | return CMD_SUCCESS; | |
1243 | } | |
1244 | ||
1245 | DEFUN (show_babel_parameters, | |
1246 | show_babel_parameters_cmd, | |
1247 | "show babel parameters", | |
1248 | SHOW_STR | |
1249 | "Babel information\n" | |
1250 | "Configuration information\n") | |
1251 | { | |
1252 | vty_out(vty, " -- Babel running configuration --%s", VTY_NEWLINE); | |
1253 | show_babel_main_configuration(vty); | |
1254 | vty_out(vty, " -- distribution lists --%s", VTY_NEWLINE); | |
1255 | config_show_distribute(vty); | |
1256 | ||
1257 | return CMD_SUCCESS; | |
1258 | } | |
1259 | ||
1260 | void | |
1261 | babel_if_init () | |
1262 | { | |
1263 | /* initialize interface list */ | |
1264 | if_add_hook (IF_NEW_HOOK, babel_if_new_hook); | |
1265 | if_add_hook (IF_DELETE_HOOK, babel_if_delete_hook); | |
1266 | ||
1267 | babel_enable_if = vector_init (1); | |
1268 | ||
1269 | /* install interface node and commands */ | |
1270 | install_node (&babel_interface_node, interface_config_write); | |
1271 | ||
1272 | install_element(BABEL_NODE, &babel_network_cmd); | |
1273 | install_element(BABEL_NODE, &no_babel_network_cmd); | |
1274 | install_element(INTERFACE_NODE, &babel_split_horizon_cmd); | |
1275 | install_element(INTERFACE_NODE, &no_babel_split_horizon_cmd); | |
1276 | install_element(INTERFACE_NODE, &babel_set_wired_cmd); | |
1277 | install_element(INTERFACE_NODE, &babel_set_wireless_cmd); | |
1278 | install_element(INTERFACE_NODE, &babel_set_hello_interval_cmd); | |
1279 | install_element(INTERFACE_NODE, &babel_set_update_interval_cmd); | |
1280 | install_element(INTERFACE_NODE, &babel_set_rxcost_cmd); | |
1281 | install_element(INTERFACE_NODE, &babel_set_channel_cmd); | |
1282 | install_element(INTERFACE_NODE, &babel_set_rtt_decay_cmd); | |
1283 | install_element(INTERFACE_NODE, &babel_set_rtt_min_cmd); | |
1284 | install_element(INTERFACE_NODE, &babel_set_rtt_max_cmd); | |
1285 | install_element(INTERFACE_NODE, &babel_set_max_rtt_penalty_cmd); | |
1286 | install_element(INTERFACE_NODE, &babel_set_enable_timestamps_cmd); | |
1287 | install_element(INTERFACE_NODE, &no_babel_set_enable_timestamps_cmd); | |
1288 | install_element(INTERFACE_NODE, &babel_set_channel_interfering_cmd); | |
1289 | install_element(INTERFACE_NODE, &babel_set_channel_noninterfering_cmd); | |
1290 | ||
1291 | /* "show babel ..." commands */ | |
1292 | install_element(VIEW_NODE, &show_babel_interface_cmd); | |
1293 | install_element(VIEW_NODE, &show_babel_neighbour_cmd); | |
1294 | install_element(VIEW_NODE, &show_babel_route_cmd); | |
1295 | install_element(VIEW_NODE, &show_babel_route_prefix_cmd); | |
1296 | install_element(VIEW_NODE, &show_babel_route_addr_cmd); | |
1297 | install_element(VIEW_NODE, &show_babel_route_addr6_cmd); | |
1298 | install_element(VIEW_NODE, &show_babel_parameters_cmd); | |
1299 | } | |
1300 | ||
1301 | /* hooks: functions called respectively when struct interface is | |
1302 | created or deleted. */ | |
1303 | static int | |
1304 | babel_if_new_hook (struct interface *ifp) | |
1305 | { | |
1306 | ifp->info = babel_interface_allocate(); | |
1307 | return 0; | |
1308 | } | |
1309 | ||
1310 | static int | |
1311 | babel_if_delete_hook (struct interface *ifp) | |
1312 | { | |
1313 | babel_interface_free(ifp->info); | |
1314 | ifp->info = NULL; | |
1315 | return 0; | |
1316 | } | |
1317 | ||
1318 | /* Output an "interface" section for each of the known interfaces with | |
1319 | babeld-specific statement lines where appropriate. */ | |
1320 | static int | |
1321 | interface_config_write (struct vty *vty) | |
1322 | { | |
1323 | struct listnode *node; | |
1324 | struct interface *ifp; | |
1325 | int write = 0; | |
1326 | ||
1327 | for (ALL_LIST_ELEMENTS_RO (vrf_iflist(VRF_DEFAULT), node, ifp)) { | |
1328 | vty_out (vty, "interface %s%s", ifp->name, | |
1329 | VTY_NEWLINE); | |
1330 | if (ifp->desc) | |
1331 | vty_out (vty, " description %s%s", ifp->desc, | |
1332 | VTY_NEWLINE); | |
1333 | babel_interface_nfo *babel_ifp = babel_get_if_nfo (ifp); | |
1334 | /* wireless is the default*/ | |
1335 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_WIRED)) | |
1336 | { | |
1337 | vty_out (vty, " babel wired%s", VTY_NEWLINE); | |
1338 | write++; | |
1339 | } | |
1340 | if (babel_ifp->hello_interval != BABEL_DEFAULT_HELLO_INTERVAL) | |
1341 | { | |
1342 | vty_out (vty, " babel hello-interval %u%s", babel_ifp->hello_interval, VTY_NEWLINE); | |
1343 | write++; | |
1344 | } | |
1345 | if (babel_ifp->update_interval != BABEL_DEFAULT_UPDATE_INTERVAL) | |
1346 | { | |
1347 | vty_out (vty, " babel update-interval %u%s", babel_ifp->update_interval, VTY_NEWLINE); | |
1348 | write++; | |
1349 | } | |
1350 | /* Some parameters have different defaults for wired/wireless. */ | |
1351 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_WIRED)) { | |
1352 | if (!CHECK_FLAG (babel_ifp->flags, BABEL_IF_SPLIT_HORIZON)) { | |
1353 | vty_out (vty, " no babel split-horizon%s", VTY_NEWLINE); | |
1354 | write++; | |
1355 | } | |
1356 | if (babel_ifp->cost != BABEL_DEFAULT_RXCOST_WIRED) { | |
1357 | vty_out (vty, " babel rxcost %u%s", babel_ifp->cost, VTY_NEWLINE); | |
1358 | write++; | |
1359 | } | |
1360 | if (babel_ifp->channel == BABEL_IF_CHANNEL_INTERFERING) { | |
1361 | vty_out (vty, " babel channel interfering%s", VTY_NEWLINE); | |
1362 | write++; | |
1363 | } else if(babel_ifp->channel != BABEL_IF_CHANNEL_NONINTERFERING) { | |
1364 | vty_out (vty, " babel channel %d%s", babel_ifp->channel, | |
1365 | VTY_NEWLINE); | |
1366 | write++; | |
1367 | } | |
1368 | } else { | |
1369 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_SPLIT_HORIZON)) { | |
1370 | vty_out (vty, " babel split-horizon%s", VTY_NEWLINE); | |
1371 | write++; | |
1372 | } | |
1373 | if (babel_ifp->cost != BABEL_DEFAULT_RXCOST_WIRELESS) { | |
1374 | vty_out (vty, " babel rxcost %u%s", babel_ifp->cost, VTY_NEWLINE); | |
1375 | write++; | |
1376 | } | |
1377 | if (babel_ifp->channel == BABEL_IF_CHANNEL_NONINTERFERING) { | |
1378 | vty_out (vty, " babel channel noninterfering%s", VTY_NEWLINE); | |
1379 | write++; | |
1380 | } else if(babel_ifp->channel != BABEL_IF_CHANNEL_INTERFERING) { | |
1381 | vty_out (vty, " babel channel %d%s", babel_ifp->channel, | |
1382 | VTY_NEWLINE); | |
1383 | write++; | |
1384 | } | |
1385 | } | |
1386 | vty_out (vty, "!%s", VTY_NEWLINE); | |
1387 | write++; | |
1388 | } | |
1389 | return write; | |
1390 | } | |
1391 | ||
1392 | /* Output a "network" statement line for each of the enabled interfaces. */ | |
1393 | int | |
1394 | babel_enable_if_config_write (struct vty * vty) | |
1395 | { | |
1396 | unsigned int i, lines = 0; | |
1397 | char *str; | |
1398 | ||
1399 | for (i = 0; i < vector_active (babel_enable_if); i++) | |
1400 | if ((str = vector_slot (babel_enable_if, i)) != NULL) | |
1401 | { | |
1402 | vty_out (vty, " network %s%s", str, VTY_NEWLINE); | |
1403 | lines++; | |
1404 | } | |
1405 | return lines; | |
1406 | } | |
1407 | ||
1408 | /* functions to allocate or free memory for a babel_interface_nfo, filling | |
1409 | needed fields */ | |
1410 | static babel_interface_nfo * | |
1411 | babel_interface_allocate (void) | |
1412 | { | |
1413 | babel_interface_nfo *babel_ifp; | |
1414 | babel_ifp = XMALLOC(MTYPE_BABEL_IF, sizeof(babel_interface_nfo)); | |
1415 | if(babel_ifp == NULL) | |
1416 | return NULL; | |
1417 | ||
1418 | /* Here are set the default values for an interface. */ | |
1419 | memset(babel_ifp, 0, sizeof(babel_interface_nfo)); | |
1420 | /* All flags are unset */ | |
1421 | babel_ifp->bucket_time = babel_now.tv_sec; | |
1422 | babel_ifp->bucket = BUCKET_TOKENS_MAX; | |
1423 | babel_ifp->hello_seqno = (random() & 0xFFFF); | |
1424 | babel_ifp->rtt_min = 10000; | |
1425 | babel_ifp->rtt_max = 120000; | |
1426 | babel_ifp->max_rtt_penalty = 150; | |
1427 | babel_ifp->hello_interval = BABEL_DEFAULT_HELLO_INTERVAL; | |
1428 | babel_ifp->update_interval = BABEL_DEFAULT_UPDATE_INTERVAL; | |
1429 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
1430 | babel_set_wired_internal(babel_ifp, 0); | |
1431 | ||
1432 | return babel_ifp; | |
1433 | } | |
1434 | ||
1435 | static void | |
1436 | babel_interface_free (babel_interface_nfo *babel_ifp) | |
1437 | { | |
1438 | XFREE(MTYPE_BABEL_IF, babel_ifp); | |
1439 | } |