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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" | |
f135ba52 | 30 | #include "lib_errors.h" |
ca10883e DS |
31 | |
32 | #include "babel_main.h" | |
33 | #include "util.h" | |
34 | #include "kernel.h" | |
35 | #include "babel_interface.h" | |
36 | #include "message.h" | |
37 | #include "route.h" | |
38 | #include "babel_zebra.h" | |
39 | #include "neighbour.h" | |
40 | #include "route.h" | |
41 | #include "xroute.h" | |
42 | #include "babel_memory.h" | |
f135ba52 | 43 | #include "babel_errors.h" |
ca10883e DS |
44 | |
45 | #define IS_ENABLE(ifp) (babel_enable_if_lookup(ifp->name) >= 0) | |
46 | ||
47 | static int babel_enable_if_lookup (const char *ifname); | |
48 | static int babel_enable_if_add (const char *ifname); | |
49 | static int babel_enable_if_delete (const char *ifname); | |
50 | static int interface_recalculate(struct interface *ifp); | |
51 | static int interface_reset(struct interface *ifp); | |
52 | static int babel_if_new_hook (struct interface *ifp); | |
53 | static int babel_if_delete_hook (struct interface *ifp); | |
54 | static int interface_config_write (struct vty *vty); | |
55 | static babel_interface_nfo * babel_interface_allocate (void); | |
56 | static void babel_interface_free (babel_interface_nfo *bi); | |
57 | ||
58 | ||
59 | static vector babel_enable_if; /* enable interfaces (by cmd). */ | |
60 | static struct cmd_node babel_interface_node = /* babeld's interface node. */ | |
61 | { | |
62 | INTERFACE_NODE, | |
63 | "%s(config-if)# ", | |
64 | 1 /* VTYSH */ | |
65 | }; | |
66 | ||
67 | ||
68 | int | |
121f9dee | 69 | babel_interface_up (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
70 | { |
71 | struct stream *s = NULL; | |
72 | struct interface *ifp = NULL; | |
73 | ||
74 | debugf(BABEL_DEBUG_IF, "receive a 'interface up'"); | |
75 | ||
76 | s = zclient->ibuf; | |
121f9dee | 77 | ifp = zebra_interface_state_read(s, vrf_id); /* it updates iflist */ |
ca10883e DS |
78 | |
79 | if (ifp == NULL) { | |
80 | return 0; | |
81 | } | |
82 | ||
83 | interface_recalculate(ifp); | |
84 | return 0; | |
85 | } | |
86 | ||
87 | int | |
121f9dee | 88 | babel_interface_down (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
89 | { |
90 | struct stream *s = NULL; | |
91 | struct interface *ifp = NULL; | |
92 | ||
93 | debugf(BABEL_DEBUG_IF, "receive a 'interface down'"); | |
94 | ||
95 | s = zclient->ibuf; | |
121f9dee | 96 | ifp = zebra_interface_state_read(s, vrf_id); /* it updates iflist */ |
ca10883e DS |
97 | |
98 | if (ifp == NULL) { | |
99 | return 0; | |
100 | } | |
101 | ||
102 | interface_reset(ifp); | |
103 | return 0; | |
104 | } | |
105 | ||
106 | int | |
121f9dee | 107 | babel_interface_add (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
108 | { |
109 | struct interface *ifp = NULL; | |
110 | ||
111 | debugf(BABEL_DEBUG_IF, "receive a 'interface add'"); | |
112 | ||
113 | /* read and add the interface in the iflist. */ | |
121f9dee | 114 | ifp = zebra_interface_add_read (zclient->ibuf, vrf_id); |
ca10883e DS |
115 | |
116 | if (ifp == NULL) { | |
117 | return 0; | |
118 | } | |
119 | ||
120 | interface_recalculate(ifp); | |
121 | return 0; | |
122 | } | |
123 | ||
124 | int | |
121f9dee | 125 | babel_interface_delete (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
126 | { |
127 | struct interface *ifp; | |
128 | struct stream *s; | |
129 | ||
130 | debugf(BABEL_DEBUG_IF, "receive a 'interface delete'"); | |
131 | ||
132 | s = zclient->ibuf; | |
121f9dee | 133 | ifp = zebra_interface_state_read(s, vrf_id); /* it updates iflist */ |
ca10883e DS |
134 | |
135 | if (ifp == NULL) | |
136 | return 0; | |
137 | ||
138 | if (IS_ENABLE(ifp)) | |
139 | interface_reset(ifp); | |
140 | ||
141 | /* To support pseudo interface do not free interface structure. */ | |
142 | /* if_delete(ifp); */ | |
ff880b78 | 143 | if_set_index(ifp, IFINDEX_INTERNAL); |
ca10883e DS |
144 | |
145 | return 0; | |
146 | } | |
147 | ||
148 | int | |
121f9dee | 149 | babel_interface_address_add (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
150 | { |
151 | babel_interface_nfo *babel_ifp; | |
152 | struct connected *ifc; | |
153 | struct prefix *prefix; | |
154 | ||
155 | debugf(BABEL_DEBUG_IF, "receive a 'interface address add'"); | |
156 | ||
157 | ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD, | |
121f9dee | 158 | zclient->ibuf, vrf_id); |
ca10883e DS |
159 | |
160 | if (ifc == NULL) | |
161 | return 0; | |
162 | ||
163 | prefix = ifc->address; | |
164 | ||
165 | if (prefix->family == AF_INET) { | |
166 | flush_interface_routes(ifc->ifp, 0); | |
167 | babel_ifp = babel_get_if_nfo(ifc->ifp); | |
168 | if (babel_ifp->ipv4 == NULL) { | |
169 | babel_ifp->ipv4 = malloc(4); | |
170 | if (babel_ifp->ipv4 == NULL) { | |
5b003f31 | 171 | flog_err(EC_BABEL_MEMORY, "not enough memory"); |
ca10883e DS |
172 | } else { |
173 | memcpy(babel_ifp->ipv4, &prefix->u.prefix4, 4); | |
174 | } | |
175 | } | |
176 | } | |
177 | ||
178 | send_request(ifc->ifp, NULL, 0); | |
179 | send_update(ifc->ifp, 0, NULL, 0); | |
180 | ||
181 | return 0; | |
182 | } | |
183 | ||
184 | int | |
121f9dee | 185 | babel_interface_address_delete (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
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, | |
121f9dee | 194 | zclient->ibuf, vrf_id); |
ca10883e DS |
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" | |
f84d11d1 | 279 | "Interface or address\n") |
ca10883e DS |
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) { | |
5c7571d4 | 293 | vty_out (vty, "There is same network configuration %s\n", |
96ade3ed | 294 | argv[1]->arg); |
851fcbae | 295 | return CMD_WARNING; |
ca10883e DS |
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" | |
bd8d8973 | 307 | "Interface or address\n") |
ca10883e DS |
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) { | |
5c7571d4 | 321 | vty_out (vty, "can't find network %s\n",argv[2]->arg); |
f1a05de9 | 322 | return CMD_WARNING_CONFIG_FAILED; |
ca10883e DS |
323 | } |
324 | ||
325 | return CMD_SUCCESS; | |
326 | } | |
327 | ||
328 | /* There are a number of interface parameters that must be changed when | |
329 | an interface becomes wired/wireless. In Quagga, they cannot be | |
330 | configured separately. */ | |
331 | ||
332 | static void | |
333 | babel_set_wired_internal(babel_interface_nfo *babel_ifp, int wired) | |
334 | { | |
335 | if(wired) { | |
336 | babel_ifp->flags |= BABEL_IF_WIRED; | |
337 | babel_ifp->flags |= BABEL_IF_SPLIT_HORIZON; | |
338 | babel_ifp->cost = BABEL_DEFAULT_RXCOST_WIRED; | |
339 | babel_ifp->channel = BABEL_IF_CHANNEL_NONINTERFERING; | |
340 | babel_ifp->flags &= ~BABEL_IF_LQ; | |
341 | } else { | |
342 | babel_ifp->flags &= ~BABEL_IF_WIRED; | |
343 | babel_ifp->flags &= ~BABEL_IF_SPLIT_HORIZON; | |
344 | babel_ifp->cost = BABEL_DEFAULT_RXCOST_WIRELESS; | |
345 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
346 | babel_ifp->flags |= BABEL_IF_LQ; | |
347 | } | |
348 | ||
349 | } | |
350 | ||
351 | /* [Interface Command] Tell the interface is wire. */ | |
352 | DEFUN (babel_set_wired, | |
353 | babel_set_wired_cmd, | |
354 | "babel wired", | |
355 | "Babel interface commands\n" | |
bd8d8973 | 356 | "Enable wired optimizations\n") |
ca10883e DS |
357 | { |
358 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
359 | babel_interface_nfo *babel_ifp; | |
360 | ||
361 | babel_ifp = babel_get_if_nfo(ifp); | |
362 | ||
363 | assert (babel_ifp != NULL); | |
364 | babel_set_wired_internal(babel_ifp, 1); | |
365 | return CMD_SUCCESS; | |
366 | } | |
367 | ||
368 | /* [Interface Command] Tell the interface is wireless (default). */ | |
369 | DEFUN (babel_set_wireless, | |
370 | babel_set_wireless_cmd, | |
371 | "babel wireless", | |
372 | "Babel interface commands\n" | |
bd8d8973 | 373 | "Disable wired optimizations (assume wireless)\n") |
ca10883e DS |
374 | { |
375 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
376 | babel_interface_nfo *babel_ifp; | |
377 | ||
378 | babel_ifp = babel_get_if_nfo(ifp); | |
379 | ||
380 | assert (babel_ifp != NULL); | |
381 | babel_set_wired_internal(babel_ifp, 0); | |
382 | return CMD_SUCCESS; | |
383 | } | |
384 | ||
385 | /* [Interface Command] Enable split horizon. */ | |
386 | DEFUN (babel_split_horizon, | |
387 | babel_split_horizon_cmd, | |
388 | "babel split-horizon", | |
389 | "Babel interface commands\n" | |
bd8d8973 | 390 | "Enable split horizon processing\n") |
ca10883e DS |
391 | { |
392 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
393 | babel_interface_nfo *babel_ifp; | |
394 | ||
395 | babel_ifp = babel_get_if_nfo(ifp); | |
396 | ||
397 | assert (babel_ifp != NULL); | |
398 | babel_ifp->flags |= BABEL_IF_SPLIT_HORIZON; | |
399 | return CMD_SUCCESS; | |
400 | } | |
401 | ||
402 | /* [Interface Command] Disable split horizon (default). */ | |
403 | DEFUN (no_babel_split_horizon, | |
404 | no_babel_split_horizon_cmd, | |
405 | "no babel split-horizon", | |
406 | NO_STR | |
407 | "Babel interface commands\n" | |
bd8d8973 | 408 | "Disable split horizon processing\n") |
ca10883e DS |
409 | { |
410 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
411 | babel_interface_nfo *babel_ifp; | |
412 | ||
413 | babel_ifp = babel_get_if_nfo(ifp); | |
414 | ||
415 | assert (babel_ifp != NULL); | |
416 | babel_ifp->flags &= ~BABEL_IF_SPLIT_HORIZON; | |
417 | return CMD_SUCCESS; | |
418 | } | |
419 | ||
420 | /* [Interface Command]. */ | |
421 | DEFUN (babel_set_hello_interval, | |
422 | babel_set_hello_interval_cmd, | |
423 | "babel hello-interval (20-655340)", | |
424 | "Babel interface commands\n" | |
425 | "Time between scheduled hellos\n" | |
426 | "Milliseconds\n") | |
427 | { | |
428 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
429 | babel_interface_nfo *babel_ifp; | |
430 | int interval; | |
431 | ||
facfee22 | 432 | interval = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
433 | |
434 | babel_ifp = babel_get_if_nfo(ifp); | |
435 | assert (babel_ifp != NULL); | |
436 | ||
437 | babel_ifp->hello_interval = interval; | |
438 | return CMD_SUCCESS; | |
439 | } | |
440 | ||
441 | /* [Interface Command]. */ | |
442 | DEFUN (babel_set_update_interval, | |
443 | babel_set_update_interval_cmd, | |
444 | "babel update-interval (20-655340)", | |
445 | "Babel interface commands\n" | |
446 | "Time between scheduled updates\n" | |
447 | "Milliseconds\n") | |
448 | { | |
449 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
450 | babel_interface_nfo *babel_ifp; | |
451 | int interval; | |
452 | ||
facfee22 | 453 | interval = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
454 | |
455 | babel_ifp = babel_get_if_nfo(ifp); | |
456 | assert (babel_ifp != NULL); | |
457 | ||
458 | babel_ifp->update_interval = interval; | |
459 | return CMD_SUCCESS; | |
460 | } | |
461 | ||
462 | DEFUN (babel_set_rxcost, | |
463 | babel_set_rxcost_cmd, | |
464 | "babel rxcost (1-65534)", | |
465 | "Babel interface commands\n" | |
466 | "Rxcost multiplier\n" | |
bd8d8973 | 467 | "Units\n") |
ca10883e DS |
468 | { |
469 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
470 | babel_interface_nfo *babel_ifp; | |
471 | int rxcost; | |
472 | ||
facfee22 | 473 | rxcost = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
474 | |
475 | babel_ifp = babel_get_if_nfo(ifp); | |
476 | assert (babel_ifp != NULL); | |
477 | ||
478 | babel_ifp->cost = rxcost; | |
479 | return CMD_SUCCESS; | |
480 | } | |
481 | ||
482 | DEFUN (babel_set_rtt_decay, | |
483 | babel_set_rtt_decay_cmd, | |
484 | "babel rtt-decay (1-256)", | |
485 | "Babel interface commands\n" | |
486 | "Decay factor for exponential moving average of RTT samples\n" | |
bd8d8973 | 487 | "Units of 1/256\n") |
ca10883e DS |
488 | { |
489 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
490 | babel_interface_nfo *babel_ifp; | |
491 | int decay; | |
492 | ||
facfee22 | 493 | decay = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
494 | |
495 | babel_ifp = babel_get_if_nfo(ifp); | |
496 | assert (babel_ifp != NULL); | |
497 | ||
498 | babel_ifp->rtt_decay = decay; | |
499 | return CMD_SUCCESS; | |
500 | } | |
501 | ||
502 | DEFUN (babel_set_rtt_min, | |
503 | babel_set_rtt_min_cmd, | |
504 | "babel rtt-min (1-65535)", | |
505 | "Babel interface commands\n" | |
506 | "Minimum RTT starting for increasing cost\n" | |
bd8d8973 | 507 | "Milliseconds\n") |
ca10883e DS |
508 | { |
509 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
510 | babel_interface_nfo *babel_ifp; | |
511 | int rtt; | |
512 | ||
facfee22 | 513 | rtt = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
514 | |
515 | babel_ifp = babel_get_if_nfo(ifp); | |
516 | assert (babel_ifp != NULL); | |
517 | ||
518 | babel_ifp->rtt_min = rtt; | |
519 | return CMD_SUCCESS; | |
520 | } | |
521 | ||
522 | DEFUN (babel_set_rtt_max, | |
523 | babel_set_rtt_max_cmd, | |
524 | "babel rtt-max (1-65535)", | |
525 | "Babel interface commands\n" | |
526 | "Maximum RTT\n" | |
bd8d8973 | 527 | "Milliseconds\n") |
ca10883e DS |
528 | { |
529 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
530 | babel_interface_nfo *babel_ifp; | |
531 | int rtt; | |
532 | ||
facfee22 | 533 | rtt = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
534 | |
535 | babel_ifp = babel_get_if_nfo(ifp); | |
536 | assert (babel_ifp != NULL); | |
537 | ||
538 | babel_ifp->rtt_max = rtt; | |
539 | return CMD_SUCCESS; | |
540 | } | |
541 | ||
542 | DEFUN (babel_set_max_rtt_penalty, | |
543 | babel_set_max_rtt_penalty_cmd, | |
544 | "babel max-rtt-penalty (0-65535)", | |
545 | "Babel interface commands\n" | |
546 | "Maximum additional cost due to RTT\n" | |
bd8d8973 | 547 | "Milliseconds\n") |
ca10883e DS |
548 | { |
549 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
550 | babel_interface_nfo *babel_ifp; | |
551 | int penalty; | |
552 | ||
facfee22 | 553 | penalty = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
554 | |
555 | babel_ifp = babel_get_if_nfo(ifp); | |
556 | assert (babel_ifp != NULL); | |
557 | ||
558 | babel_ifp->max_rtt_penalty = penalty; | |
559 | return CMD_SUCCESS; | |
560 | } | |
561 | ||
562 | DEFUN (babel_set_enable_timestamps, | |
563 | babel_set_enable_timestamps_cmd, | |
564 | "babel enable-timestamps", | |
565 | "Babel interface commands\n" | |
bd8d8973 | 566 | "Enable timestamps\n") |
ca10883e DS |
567 | { |
568 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
569 | babel_interface_nfo *babel_ifp; | |
570 | ||
571 | babel_ifp = babel_get_if_nfo(ifp); | |
572 | assert (babel_ifp != NULL); | |
573 | ||
574 | babel_ifp->flags |= BABEL_IF_TIMESTAMPS; | |
575 | return CMD_SUCCESS; | |
576 | } | |
577 | ||
578 | DEFUN (no_babel_set_enable_timestamps, | |
579 | no_babel_set_enable_timestamps_cmd, | |
580 | "no babel enable-timestamps", | |
bd8d8973 | 581 | NO_STR |
ca10883e | 582 | "Babel interface commands\n" |
bd8d8973 | 583 | "Disable timestamps\n") |
ca10883e DS |
584 | { |
585 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
586 | babel_interface_nfo *babel_ifp; | |
587 | ||
588 | babel_ifp = babel_get_if_nfo(ifp); | |
589 | assert (babel_ifp != NULL); | |
590 | ||
591 | babel_ifp->flags &= ~BABEL_IF_TIMESTAMPS; | |
592 | return CMD_SUCCESS; | |
593 | } | |
594 | ||
595 | DEFUN (babel_set_channel, | |
596 | babel_set_channel_cmd, | |
597 | "babel channel (1-254)", | |
598 | "Babel interface commands\n" | |
599 | "Channel number for diversity routing\n" | |
bd8d8973 | 600 | "Number\n") |
ca10883e DS |
601 | { |
602 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
603 | babel_interface_nfo *babel_ifp; | |
604 | int channel; | |
605 | ||
facfee22 | 606 | channel = strtoul(argv[2]->arg, NULL, 10); |
ca10883e DS |
607 | |
608 | babel_ifp = babel_get_if_nfo(ifp); | |
609 | assert (babel_ifp != NULL); | |
610 | ||
611 | babel_ifp->channel = channel; | |
612 | return CMD_SUCCESS; | |
613 | } | |
614 | ||
615 | DEFUN (babel_set_channel_interfering, | |
616 | babel_set_channel_interfering_cmd, | |
617 | "babel channel interfering", | |
618 | "Babel interface commands\n" | |
619 | "Channel number for diversity routing\n" | |
bd8d8973 | 620 | "Mark channel as interfering\n") |
ca10883e DS |
621 | { |
622 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
623 | babel_interface_nfo *babel_ifp; | |
624 | ||
625 | babel_ifp = babel_get_if_nfo(ifp); | |
626 | assert (babel_ifp != NULL); | |
627 | ||
628 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
629 | return CMD_SUCCESS; | |
630 | } | |
631 | ||
632 | DEFUN (babel_set_channel_noninterfering, | |
633 | babel_set_channel_noninterfering_cmd, | |
634 | "babel channel noninterfering", | |
635 | "Babel interface commands\n" | |
636 | "Channel number for diversity routing\n" | |
bd8d8973 | 637 | "Mark channel as noninterfering\n") |
ca10883e DS |
638 | { |
639 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
640 | babel_interface_nfo *babel_ifp; | |
641 | ||
642 | babel_ifp = babel_get_if_nfo(ifp); | |
643 | assert (babel_ifp != NULL); | |
644 | ||
645 | babel_ifp->channel = BABEL_IF_CHANNEL_NONINTERFERING; | |
646 | return CMD_SUCCESS; | |
647 | } | |
648 | ||
649 | /* This should be no more than half the hello interval, so that hellos | |
650 | aren't sent late. The result is in milliseconds. */ | |
651 | unsigned | |
652 | jitter(babel_interface_nfo *babel_ifp, int urgent) | |
653 | { | |
654 | unsigned interval = babel_ifp->hello_interval; | |
655 | if(urgent) | |
656 | interval = MIN(interval, 100); | |
657 | else | |
658 | interval = MIN(interval, 4000); | |
659 | return roughly(interval) / 4; | |
660 | } | |
661 | ||
662 | unsigned | |
663 | update_jitter(babel_interface_nfo *babel_ifp, int urgent) | |
664 | { | |
665 | unsigned interval = babel_ifp->hello_interval; | |
666 | if(urgent) | |
667 | interval = MIN(interval, 100); | |
668 | else | |
669 | interval = MIN(interval, 4000); | |
670 | return roughly(interval); | |
671 | } | |
672 | ||
673 | /* calculate babeld's specific datas of an interface (change when the interface | |
674 | change) */ | |
675 | static int | |
676 | interface_recalculate(struct interface *ifp) | |
677 | { | |
678 | babel_interface_nfo *babel_ifp = babel_get_if_nfo(ifp); | |
679 | unsigned char *tmp = NULL; | |
680 | int mtu, rc; | |
681 | struct ipv6_mreq mreq; | |
682 | ||
683 | if (!IS_ENABLE(ifp)) | |
684 | return -1; | |
685 | ||
686 | if (!if_is_operative(ifp) || !CHECK_FLAG(ifp->flags, IFF_RUNNING)) { | |
687 | interface_reset(ifp); | |
688 | return -1; | |
689 | } | |
690 | ||
691 | babel_ifp->flags |= BABEL_IF_IS_UP; | |
692 | ||
693 | mtu = MIN(ifp->mtu, ifp->mtu6); | |
694 | ||
695 | /* We need to be able to fit at least two messages into a packet, | |
696 | so MTUs below 116 require lower layer fragmentation. */ | |
697 | /* In IPv6, the minimum MTU is 1280, and every host must be able | |
698 | to reassemble up to 1500 bytes, but I'd rather not rely on this. */ | |
699 | if(mtu < 128) { | |
700 | debugf(BABEL_DEBUG_IF, "Suspiciously low MTU %d on interface %s (%d).", | |
701 | mtu, ifp->name, ifp->ifindex); | |
702 | mtu = 128; | |
703 | } | |
704 | ||
705 | /* 4 for Babel header; 40 for IPv6 header, 8 for UDP header, 12 for good luck. */ | |
706 | babel_ifp->bufsize = mtu - 4 - 60; | |
707 | tmp = babel_ifp->sendbuf; | |
708 | babel_ifp->sendbuf = realloc(babel_ifp->sendbuf, babel_ifp->bufsize); | |
709 | if(babel_ifp->sendbuf == NULL) { | |
5b003f31 | 710 | flog_err(EC_BABEL_MEMORY, "Couldn't reallocate sendbuf."); |
ca10883e DS |
711 | free(tmp); |
712 | babel_ifp->bufsize = 0; | |
713 | return -1; | |
714 | } | |
715 | tmp = NULL; | |
716 | ||
717 | rc = resize_receive_buffer(mtu); | |
718 | if(rc < 0) | |
719 | zlog_warn("couldn't resize " | |
720 | "receive buffer for interface %s (%d) (%d bytes).\n", | |
721 | ifp->name, ifp->ifindex, mtu); | |
722 | ||
723 | memset(&mreq, 0, sizeof(mreq)); | |
724 | memcpy(&mreq.ipv6mr_multiaddr, protocol_group, 16); | |
725 | mreq.ipv6mr_interface = ifp->ifindex; | |
726 | ||
727 | rc = setsockopt(protocol_socket, IPPROTO_IPV6, IPV6_JOIN_GROUP, | |
728 | (char*)&mreq, sizeof(mreq)); | |
729 | if(rc < 0) { | |
450971aa | 730 | flog_err_sys(EC_LIB_SOCKET, |
f135ba52 DS |
731 | "setsockopt(IPV6_JOIN_GROUP) on interface '%s': %s", |
732 | ifp->name, safe_strerror(errno)); | |
ca10883e DS |
733 | /* This is probably due to a missing link-local address, |
734 | so down this interface, and wait until the main loop | |
735 | tries to up it again. */ | |
736 | interface_reset(ifp); | |
737 | return -1; | |
738 | } | |
739 | ||
740 | set_timeout(&babel_ifp->hello_timeout, babel_ifp->hello_interval); | |
741 | set_timeout(&babel_ifp->update_timeout, babel_ifp->update_interval); | |
742 | send_hello(ifp); | |
743 | send_request(ifp, NULL, 0); | |
744 | ||
745 | update_interface_metric(ifp); | |
746 | ||
747 | debugf(BABEL_DEBUG_COMMON, | |
748 | "Upped interface %s (%s, cost=%d, channel=%d%s).", | |
749 | ifp->name, | |
750 | (babel_ifp->flags & BABEL_IF_WIRED) ? "wired" : "wireless", | |
751 | babel_ifp->cost, | |
752 | babel_ifp->channel, | |
753 | babel_ifp->ipv4 ? ", IPv4" : ""); | |
754 | ||
755 | if(rc > 0) | |
756 | send_update(ifp, 0, NULL, 0); | |
757 | ||
758 | return 1; | |
759 | } | |
760 | ||
761 | /* Reset the interface as it was new: it's not removed from the interface list, | |
762 | and may be considered as a upped interface. */ | |
763 | static int | |
764 | interface_reset(struct interface *ifp) | |
765 | { | |
766 | int rc; | |
767 | struct ipv6_mreq mreq; | |
768 | babel_interface_nfo *babel_ifp = babel_get_if_nfo(ifp); | |
769 | ||
770 | if (!(babel_ifp->flags & BABEL_IF_IS_UP)) | |
771 | return 0; | |
772 | ||
773 | debugf(BABEL_DEBUG_IF, "interface reset: %s", ifp->name); | |
774 | babel_ifp->flags &= ~BABEL_IF_IS_UP; | |
775 | ||
776 | flush_interface_routes(ifp, 0); | |
777 | babel_ifp->buffered = 0; | |
778 | babel_ifp->bufsize = 0; | |
779 | free(babel_ifp->sendbuf); | |
780 | babel_ifp->num_buffered_updates = 0; | |
781 | babel_ifp->update_bufsize = 0; | |
782 | if(babel_ifp->buffered_updates) | |
783 | free(babel_ifp->buffered_updates); | |
784 | babel_ifp->buffered_updates = NULL; | |
785 | babel_ifp->sendbuf = NULL; | |
786 | ||
787 | if(ifp->ifindex > 0) { | |
788 | memset(&mreq, 0, sizeof(mreq)); | |
789 | memcpy(&mreq.ipv6mr_multiaddr, protocol_group, 16); | |
790 | mreq.ipv6mr_interface = ifp->ifindex; | |
791 | rc = setsockopt(protocol_socket, IPPROTO_IPV6, IPV6_LEAVE_GROUP, | |
792 | (char*)&mreq, sizeof(mreq)); | |
793 | if(rc < 0) | |
450971aa | 794 | flog_err_sys(EC_LIB_SOCKET, |
f135ba52 DS |
795 | "setsockopt(IPV6_LEAVE_GROUP) on interface '%s': %s", |
796 | ifp->name, safe_strerror(errno)); | |
ca10883e DS |
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 | { | |
f4e14fdb | 814 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
ca10883e | 815 | struct interface *ifp = NULL; |
ca10883e | 816 | |
f4e14fdb | 817 | FOR_ALL_INTERFACES(vrf, ifp) { |
ca10883e DS |
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 | } | |
f4e14fdb | 828 | FOR_ALL_INTERFACES(vrf, ifp) { |
ca10883e DS |
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 | ||
5c7571d4 | 866 | vty_out (vty, "%s is %s\n", ifp->name, |
96ade3ed | 867 | ((is_up = if_is_operative(ifp)) ? "up" : "down")); |
5c7571d4 | 868 | vty_out (vty, " ifindex %u, MTU %u bytes %s\n", |
96ade3ed | 869 | ifp->ifindex, MIN(ifp->mtu, ifp->mtu6), if_flag_dump(ifp->flags)); |
ca10883e DS |
870 | |
871 | if (!IS_ENABLE(ifp)) | |
872 | { | |
5c7571d4 | 873 | vty_out (vty, " Babel protocol is not enabled on this interface\n"); |
ca10883e DS |
874 | return; |
875 | } | |
876 | if (!is_up) | |
877 | { | |
5c7571d4 DL |
878 | vty_out (vty, |
879 | " Babel protocol is enabled, but not running on this interface\n"); | |
ca10883e DS |
880 | return; |
881 | } | |
882 | babel_ifp = babel_get_if_nfo (ifp); | |
5c7571d4 | 883 | vty_out (vty, " Babel protocol is running on this interface\n"); |
181039f3 | 884 | vty_out (vty, " Operating mode is \"%s\"\n", |
96ade3ed | 885 | CHECK_FLAG(babel_ifp->flags, BABEL_IF_WIRED) ? "wired" : "wireless"); |
5c7571d4 | 886 | vty_out (vty, " Split horizon mode is %s\n", |
96ade3ed | 887 | CHECK_FLAG(babel_ifp->flags, BABEL_IF_SPLIT_HORIZON) ? "On" : "Off"); |
5c7571d4 DL |
888 | vty_out (vty, " Hello interval is %u ms\n", babel_ifp->hello_interval); |
889 | vty_out (vty, " Update interval is %u ms\n", babel_ifp->update_interval); | |
890 | vty_out (vty, " Rxcost multiplier is %u\n", babel_ifp->cost); | |
ca10883e DS |
891 | } |
892 | ||
893 | DEFUN (show_babel_interface, | |
894 | show_babel_interface_cmd, | |
895 | "show babel interface [IFNAME]", | |
896 | SHOW_STR | |
897 | "Babel information\n" | |
898 | "Interface information\n" | |
899 | "Interface\n") | |
900 | { | |
f4e14fdb | 901 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
ca10883e | 902 | struct interface *ifp; |
ca10883e DS |
903 | |
904 | if (argc == 3) | |
905 | { | |
451fda4f | 906 | FOR_ALL_INTERFACES (vrf, ifp) |
ca10883e DS |
907 | show_babel_interface_sub (vty, ifp); |
908 | return CMD_SUCCESS; | |
909 | } | |
910 | if ((ifp = if_lookup_by_name (argv[3]->arg, VRF_DEFAULT)) == NULL) | |
911 | { | |
5c7571d4 | 912 | vty_out (vty, "No such interface name\n"); |
ca10883e DS |
913 | return CMD_WARNING; |
914 | } | |
915 | show_babel_interface_sub (vty, ifp); | |
916 | return CMD_SUCCESS; | |
917 | } | |
918 | ||
919 | static void | |
920 | show_babel_neighbour_sub (struct vty *vty, struct neighbour *neigh) | |
921 | { | |
181039f3 | 922 | vty_out (vty, |
ca10883e | 923 | "Neighbour %s dev %s reach %04x rxcost %d txcost %d " |
181039f3 | 924 | "rtt %s rttcost %d%s.\n", |
ca10883e DS |
925 | format_address(neigh->address), |
926 | neigh->ifp->name, | |
927 | neigh->reach, | |
928 | neighbour_rxcost(neigh), | |
929 | neigh->txcost, | |
930 | format_thousands(neigh->rtt), | |
931 | neighbour_rttcost(neigh), | |
96ade3ed | 932 | if_up(neigh->ifp) ? "" : " (down)"); |
ca10883e DS |
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 | { | |
5c7571d4 | 954 | vty_out (vty, "No such interface name\n"); |
ca10883e DS |
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++] = ','; | |
2ec42b85 | 1006 | snprintf(channels + j, 100 - j, "%u", route->channels[k]); |
ca10883e DS |
1007 | j = strlen(channels); |
1008 | } | |
1009 | snprintf(channels + j, 100 - j, ")"); | |
1010 | if(k == 0) | |
1011 | channels[0] = '\0'; | |
1012 | } | |
1013 | ||
181039f3 | 1014 | vty_out (vty, |
ca10883e | 1015 | "%s metric %d refmetric %d id %s seqno %d%s age %d " |
181039f3 | 1016 | "via %s neigh %s%s%s%s\n", |
ca10883e DS |
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) : "", | |
96ade3ed | 1027 | route->installed ? " (installed)" : route_feasible(route) ? " (feasible)" : ""); |
ca10883e DS |
1028 | } |
1029 | ||
1030 | static void | |
1031 | show_babel_xroutes_sub (struct xroute *xroute, struct vty *vty, | |
1032 | struct prefix *prefix) | |
1033 | { | |
1034 | if(prefix && !babel_prefix_eq(prefix, xroute->prefix, xroute->plen)) | |
1035 | return; | |
1036 | ||
5c7571d4 | 1037 | vty_out (vty, "%s metric %d (exported)\n", |
ca10883e | 1038 | format_prefix(xroute->prefix, xroute->plen), |
96ade3ed | 1039 | xroute->metric); |
ca10883e DS |
1040 | } |
1041 | ||
1042 | DEFUN (show_babel_route, | |
1043 | show_babel_route_cmd, | |
1044 | "show babel route", | |
1045 | SHOW_STR | |
1046 | "Babel information\n" | |
1047 | "Babel internal routing table\n") | |
1048 | { | |
1049 | struct route_stream *routes = NULL; | |
1050 | struct xroute_stream *xroutes = NULL; | |
1051 | routes = route_stream(0); | |
1052 | if(routes) { | |
1053 | while(1) { | |
1054 | struct babel_route *route = route_stream_next(routes); | |
1055 | if(route == NULL) | |
1056 | break; | |
1057 | show_babel_routes_sub(route, vty, NULL); | |
1058 | } | |
1059 | route_stream_done(routes); | |
1060 | } else { | |
5b003f31 | 1061 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1062 | } |
dd15627e | 1063 | xroutes = xroute_stream(); |
ca10883e DS |
1064 | if(xroutes) { |
1065 | while(1) { | |
1066 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1067 | if(xroute == NULL) | |
1068 | break; | |
1069 | show_babel_xroutes_sub(xroute, vty, NULL); | |
1070 | } | |
1071 | xroute_stream_done(xroutes); | |
1072 | } else { | |
5b003f31 | 1073 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1074 | } |
1075 | return CMD_SUCCESS; | |
1076 | } | |
1077 | ||
1078 | DEFUN (show_babel_route_prefix, | |
1079 | show_babel_route_prefix_cmd, | |
1080 | "show babel route <A.B.C.D/M|X:X::X:X/M>", | |
1081 | SHOW_STR | |
1082 | "Babel information\n" | |
f7bf422e | 1083 | "Babel internal routing table\n" |
ca10883e DS |
1084 | "IPv4 prefix <network>/<length>\n" |
1085 | "IPv6 prefix <network>/<length>\n") | |
1086 | { | |
1087 | struct route_stream *routes = NULL; | |
1088 | struct xroute_stream *xroutes = NULL; | |
1089 | struct prefix prefix; | |
1090 | int ret; | |
1091 | ||
1092 | ret = str2prefix(argv[3]->arg, &prefix); | |
1093 | if(ret == 0) { | |
5c7571d4 | 1094 | vty_out (vty, "%% Malformed address\n"); |
ca10883e DS |
1095 | return CMD_WARNING; |
1096 | } | |
1097 | ||
1098 | routes = route_stream(0); | |
1099 | if(routes) { | |
1100 | while(1) { | |
1101 | struct babel_route *route = route_stream_next(routes); | |
1102 | if(route == NULL) | |
1103 | break; | |
1104 | show_babel_routes_sub(route, vty, &prefix); | |
1105 | } | |
1106 | route_stream_done(routes); | |
1107 | } else { | |
5b003f31 | 1108 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1109 | } |
dd15627e | 1110 | xroutes = xroute_stream(); |
ca10883e DS |
1111 | if(xroutes) { |
1112 | while(1) { | |
1113 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1114 | if(xroute == NULL) | |
1115 | break; | |
1116 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1117 | } | |
1118 | xroute_stream_done(xroutes); | |
1119 | } else { | |
5b003f31 | 1120 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1121 | } |
1122 | return CMD_SUCCESS; | |
1123 | } | |
1124 | ||
1125 | ||
1126 | DEFUN (show_babel_route_addr, | |
1127 | show_babel_route_addr_cmd, | |
1128 | "show babel route A.B.C.D", | |
1129 | SHOW_STR | |
1130 | "Babel information\n" | |
f7bf422e | 1131 | "Babel internal routing table\n" |
ca10883e DS |
1132 | "IPv4 address <network>/<length>\n") |
1133 | { | |
1134 | struct in_addr addr; | |
1135 | char buf[INET_ADDRSTRLEN + 8]; | |
1136 | struct route_stream *routes = NULL; | |
1137 | struct xroute_stream *xroutes = NULL; | |
1138 | struct prefix prefix; | |
1139 | int ret; | |
1140 | ||
1141 | ret = inet_aton (argv[3]->arg, &addr); | |
1142 | if (ret <= 0) { | |
5c7571d4 | 1143 | vty_out (vty, "%% Malformed address\n"); |
ca10883e DS |
1144 | return CMD_WARNING; |
1145 | } | |
1146 | ||
1147 | /* Quagga has no convenient prefix constructors. */ | |
1148 | snprintf(buf, sizeof(buf), "%s/%d", inet_ntoa(addr), 32); | |
1149 | ||
1150 | ret = str2prefix(buf, &prefix); | |
1151 | if (ret == 0) { | |
5c7571d4 | 1152 | vty_out (vty, "%% Parse error -- this shouldn't happen\n"); |
ca10883e DS |
1153 | return CMD_WARNING; |
1154 | } | |
1155 | ||
1156 | routes = route_stream(0); | |
1157 | if(routes) { | |
1158 | while(1) { | |
1159 | struct babel_route *route = route_stream_next(routes); | |
1160 | if(route == NULL) | |
1161 | break; | |
1162 | show_babel_routes_sub(route, vty, &prefix); | |
1163 | } | |
1164 | route_stream_done(routes); | |
1165 | } else { | |
5b003f31 | 1166 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1167 | } |
dd15627e | 1168 | xroutes = xroute_stream(); |
ca10883e DS |
1169 | if(xroutes) { |
1170 | while(1) { | |
1171 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1172 | if(xroute == NULL) | |
1173 | break; | |
1174 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1175 | } | |
1176 | xroute_stream_done(xroutes); | |
1177 | } else { | |
5b003f31 | 1178 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1179 | } |
1180 | return CMD_SUCCESS; | |
1181 | } | |
1182 | ||
1183 | DEFUN (show_babel_route_addr6, | |
1184 | show_babel_route_addr6_cmd, | |
1185 | "show babel route X:X::X:X", | |
1186 | SHOW_STR | |
1187 | "Babel information\n" | |
f7bf422e | 1188 | "Babel internal routing table\n" |
ca10883e DS |
1189 | "IPv6 address <network>/<length>\n") |
1190 | { | |
1191 | struct in6_addr addr; | |
1192 | char buf1[INET6_ADDRSTRLEN]; | |
1193 | char buf[INET6_ADDRSTRLEN + 8]; | |
1194 | struct route_stream *routes = NULL; | |
1195 | struct xroute_stream *xroutes = NULL; | |
1196 | struct prefix prefix; | |
1197 | int ret; | |
1198 | ||
1199 | ret = inet_pton (AF_INET6, argv[3]->arg, &addr); | |
1200 | if (ret <= 0) { | |
5c7571d4 | 1201 | vty_out (vty, "%% Malformed address\n"); |
ca10883e DS |
1202 | return CMD_WARNING; |
1203 | } | |
1204 | ||
1205 | /* Quagga has no convenient prefix constructors. */ | |
1206 | snprintf(buf, sizeof(buf), "%s/%d", | |
1207 | inet_ntop(AF_INET6, &addr, buf1, sizeof(buf1)), 128); | |
1208 | ||
1209 | ret = str2prefix(buf, &prefix); | |
1210 | if (ret == 0) { | |
5c7571d4 | 1211 | vty_out (vty, "%% Parse error -- this shouldn't happen\n"); |
ca10883e DS |
1212 | return CMD_WARNING; |
1213 | } | |
1214 | ||
1215 | routes = route_stream(0); | |
1216 | if(routes) { | |
1217 | while(1) { | |
1218 | struct babel_route *route = route_stream_next(routes); | |
1219 | if(route == NULL) | |
1220 | break; | |
1221 | show_babel_routes_sub(route, vty, &prefix); | |
1222 | } | |
1223 | route_stream_done(routes); | |
1224 | } else { | |
5b003f31 | 1225 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1226 | } |
dd15627e | 1227 | xroutes = xroute_stream(); |
ca10883e DS |
1228 | if(xroutes) { |
1229 | while(1) { | |
1230 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1231 | if(xroute == NULL) | |
1232 | break; | |
1233 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1234 | } | |
1235 | xroute_stream_done(xroutes); | |
1236 | } else { | |
5b003f31 | 1237 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1238 | } |
1239 | return CMD_SUCCESS; | |
1240 | } | |
1241 | ||
1242 | DEFUN (show_babel_parameters, | |
1243 | show_babel_parameters_cmd, | |
1244 | "show babel parameters", | |
1245 | SHOW_STR | |
1246 | "Babel information\n" | |
1247 | "Configuration information\n") | |
1248 | { | |
03a38493 PG |
1249 | struct babel *babel_ctx; |
1250 | ||
5c7571d4 | 1251 | vty_out (vty, " -- Babel running configuration --\n"); |
ca10883e | 1252 | show_babel_main_configuration(vty); |
ca10883e | 1253 | |
03a38493 PG |
1254 | babel_ctx = babel_lookup(); |
1255 | if (babel_ctx) { | |
1256 | vty_out (vty, " -- distribution lists --\n"); | |
1257 | config_show_distribute(vty, babel_ctx->distribute_ctx); | |
1258 | } | |
ca10883e DS |
1259 | return CMD_SUCCESS; |
1260 | } | |
1261 | ||
1262 | void | |
4d762f26 | 1263 | babel_if_init(void) |
ca10883e DS |
1264 | { |
1265 | /* initialize interface list */ | |
ce19a04a DL |
1266 | hook_register_prio(if_add, 0, babel_if_new_hook); |
1267 | hook_register_prio(if_del, 0, babel_if_delete_hook); | |
ca10883e DS |
1268 | |
1269 | babel_enable_if = vector_init (1); | |
1270 | ||
1271 | /* install interface node and commands */ | |
1272 | install_node (&babel_interface_node, interface_config_write); | |
bd8d8973 | 1273 | if_cmd_init(); |
ca10883e DS |
1274 | |
1275 | install_element(BABEL_NODE, &babel_network_cmd); | |
1276 | install_element(BABEL_NODE, &no_babel_network_cmd); | |
1277 | install_element(INTERFACE_NODE, &babel_split_horizon_cmd); | |
1278 | install_element(INTERFACE_NODE, &no_babel_split_horizon_cmd); | |
1279 | install_element(INTERFACE_NODE, &babel_set_wired_cmd); | |
1280 | install_element(INTERFACE_NODE, &babel_set_wireless_cmd); | |
1281 | install_element(INTERFACE_NODE, &babel_set_hello_interval_cmd); | |
1282 | install_element(INTERFACE_NODE, &babel_set_update_interval_cmd); | |
1283 | install_element(INTERFACE_NODE, &babel_set_rxcost_cmd); | |
1284 | install_element(INTERFACE_NODE, &babel_set_channel_cmd); | |
1285 | install_element(INTERFACE_NODE, &babel_set_rtt_decay_cmd); | |
1286 | install_element(INTERFACE_NODE, &babel_set_rtt_min_cmd); | |
1287 | install_element(INTERFACE_NODE, &babel_set_rtt_max_cmd); | |
1288 | install_element(INTERFACE_NODE, &babel_set_max_rtt_penalty_cmd); | |
1289 | install_element(INTERFACE_NODE, &babel_set_enable_timestamps_cmd); | |
1290 | install_element(INTERFACE_NODE, &no_babel_set_enable_timestamps_cmd); | |
1291 | install_element(INTERFACE_NODE, &babel_set_channel_interfering_cmd); | |
1292 | install_element(INTERFACE_NODE, &babel_set_channel_noninterfering_cmd); | |
1293 | ||
1294 | /* "show babel ..." commands */ | |
1295 | install_element(VIEW_NODE, &show_babel_interface_cmd); | |
1296 | install_element(VIEW_NODE, &show_babel_neighbour_cmd); | |
1297 | install_element(VIEW_NODE, &show_babel_route_cmd); | |
1298 | install_element(VIEW_NODE, &show_babel_route_prefix_cmd); | |
1299 | install_element(VIEW_NODE, &show_babel_route_addr_cmd); | |
1300 | install_element(VIEW_NODE, &show_babel_route_addr6_cmd); | |
1301 | install_element(VIEW_NODE, &show_babel_parameters_cmd); | |
1302 | } | |
1303 | ||
1304 | /* hooks: functions called respectively when struct interface is | |
1305 | created or deleted. */ | |
1306 | static int | |
1307 | babel_if_new_hook (struct interface *ifp) | |
1308 | { | |
1309 | ifp->info = babel_interface_allocate(); | |
1310 | return 0; | |
1311 | } | |
1312 | ||
1313 | static int | |
1314 | babel_if_delete_hook (struct interface *ifp) | |
1315 | { | |
1316 | babel_interface_free(ifp->info); | |
1317 | ifp->info = NULL; | |
1318 | return 0; | |
1319 | } | |
1320 | ||
1321 | /* Output an "interface" section for each of the known interfaces with | |
1322 | babeld-specific statement lines where appropriate. */ | |
1323 | static int | |
1324 | interface_config_write (struct vty *vty) | |
1325 | { | |
f4e14fdb | 1326 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
ca10883e DS |
1327 | struct interface *ifp; |
1328 | int write = 0; | |
1329 | ||
451fda4f | 1330 | FOR_ALL_INTERFACES (vrf, ifp) { |
a8b828f3 | 1331 | vty_frame (vty, "interface %s\n",ifp->name); |
ca10883e | 1332 | if (ifp->desc) |
5c7571d4 | 1333 | vty_out (vty, " description %s\n",ifp->desc); |
ca10883e DS |
1334 | babel_interface_nfo *babel_ifp = babel_get_if_nfo (ifp); |
1335 | /* wireless is the default*/ | |
1336 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_WIRED)) | |
1337 | { | |
5c7571d4 | 1338 | vty_out (vty, " babel wired\n"); |
ca10883e DS |
1339 | write++; |
1340 | } | |
1341 | if (babel_ifp->hello_interval != BABEL_DEFAULT_HELLO_INTERVAL) | |
1342 | { | |
5c7571d4 | 1343 | vty_out (vty, " babel hello-interval %u\n", |
96ade3ed | 1344 | babel_ifp->hello_interval); |
ca10883e DS |
1345 | write++; |
1346 | } | |
1347 | if (babel_ifp->update_interval != BABEL_DEFAULT_UPDATE_INTERVAL) | |
1348 | { | |
5c7571d4 | 1349 | vty_out (vty, " babel update-interval %u\n", |
96ade3ed | 1350 | babel_ifp->update_interval); |
ca10883e DS |
1351 | write++; |
1352 | } | |
1353 | /* Some parameters have different defaults for wired/wireless. */ | |
1354 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_WIRED)) { | |
1355 | if (!CHECK_FLAG (babel_ifp->flags, BABEL_IF_SPLIT_HORIZON)) { | |
5c7571d4 | 1356 | vty_out (vty, " no babel split-horizon\n"); |
ca10883e DS |
1357 | write++; |
1358 | } | |
1359 | if (babel_ifp->cost != BABEL_DEFAULT_RXCOST_WIRED) { | |
5c7571d4 | 1360 | vty_out (vty, " babel rxcost %u\n", babel_ifp->cost); |
ca10883e DS |
1361 | write++; |
1362 | } | |
1363 | if (babel_ifp->channel == BABEL_IF_CHANNEL_INTERFERING) { | |
5c7571d4 | 1364 | vty_out (vty, " babel channel interfering\n"); |
ca10883e DS |
1365 | write++; |
1366 | } else if(babel_ifp->channel != BABEL_IF_CHANNEL_NONINTERFERING) { | |
5c7571d4 | 1367 | vty_out (vty, " babel channel %d\n",babel_ifp->channel); |
ca10883e DS |
1368 | write++; |
1369 | } | |
1370 | } else { | |
1371 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_SPLIT_HORIZON)) { | |
5c7571d4 | 1372 | vty_out (vty, " babel split-horizon\n"); |
ca10883e DS |
1373 | write++; |
1374 | } | |
1375 | if (babel_ifp->cost != BABEL_DEFAULT_RXCOST_WIRELESS) { | |
5c7571d4 | 1376 | vty_out (vty, " babel rxcost %u\n", babel_ifp->cost); |
ca10883e DS |
1377 | write++; |
1378 | } | |
1379 | if (babel_ifp->channel == BABEL_IF_CHANNEL_NONINTERFERING) { | |
5c7571d4 | 1380 | vty_out (vty, " babel channel noninterfering\n"); |
ca10883e DS |
1381 | write++; |
1382 | } else if(babel_ifp->channel != BABEL_IF_CHANNEL_INTERFERING) { | |
5c7571d4 | 1383 | vty_out (vty, " babel channel %d\n",babel_ifp->channel); |
ca10883e DS |
1384 | write++; |
1385 | } | |
1386 | } | |
a8b828f3 | 1387 | vty_endframe (vty, "!\n"); |
ca10883e DS |
1388 | write++; |
1389 | } | |
1390 | return write; | |
1391 | } | |
1392 | ||
1393 | /* Output a "network" statement line for each of the enabled interfaces. */ | |
1394 | int | |
1395 | babel_enable_if_config_write (struct vty * vty) | |
1396 | { | |
1397 | unsigned int i, lines = 0; | |
1398 | char *str; | |
1399 | ||
1400 | for (i = 0; i < vector_active (babel_enable_if); i++) | |
1401 | if ((str = vector_slot (babel_enable_if, i)) != NULL) | |
1402 | { | |
5c7571d4 | 1403 | vty_out (vty, " network %s\n", str); |
ca10883e DS |
1404 | lines++; |
1405 | } | |
1406 | return lines; | |
1407 | } | |
1408 | ||
1409 | /* functions to allocate or free memory for a babel_interface_nfo, filling | |
1410 | needed fields */ | |
1411 | static babel_interface_nfo * | |
1412 | babel_interface_allocate (void) | |
1413 | { | |
1414 | babel_interface_nfo *babel_ifp; | |
aa406bbc | 1415 | babel_ifp = XCALLOC(MTYPE_BABEL_IF, sizeof(babel_interface_nfo)); |
ca10883e DS |
1416 | /* All flags are unset */ |
1417 | babel_ifp->bucket_time = babel_now.tv_sec; | |
1418 | babel_ifp->bucket = BUCKET_TOKENS_MAX; | |
1419 | babel_ifp->hello_seqno = (random() & 0xFFFF); | |
1420 | babel_ifp->rtt_min = 10000; | |
1421 | babel_ifp->rtt_max = 120000; | |
1422 | babel_ifp->max_rtt_penalty = 150; | |
1423 | babel_ifp->hello_interval = BABEL_DEFAULT_HELLO_INTERVAL; | |
1424 | babel_ifp->update_interval = BABEL_DEFAULT_UPDATE_INTERVAL; | |
1425 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
1426 | babel_set_wired_internal(babel_ifp, 0); | |
1427 | ||
1428 | return babel_ifp; | |
1429 | } | |
1430 | ||
1431 | static void | |
1432 | babel_interface_free (babel_interface_nfo *babel_ifp) | |
1433 | { | |
1434 | XFREE(MTYPE_BABEL_IF, babel_ifp); | |
1435 | } |