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acddc0ed | 1 | // SPDX-License-Identifier: MIT |
ca10883e DS |
2 | /* |
3 | Copyright 2011 by Matthieu Boutier and Juliusz Chroboczek | |
ca10883e DS |
4 | */ |
5 | ||
6 | #include <zebra.h> | |
7 | #include "memory.h" | |
8 | #include "log.h" | |
9 | #include "command.h" | |
10 | #include "prefix.h" | |
11 | #include "vector.h" | |
12 | #include "distribute.h" | |
f135ba52 | 13 | #include "lib_errors.h" |
5920b3eb | 14 | #include "network.h" |
ca10883e DS |
15 | |
16 | #include "babel_main.h" | |
17 | #include "util.h" | |
18 | #include "kernel.h" | |
19 | #include "babel_interface.h" | |
20 | #include "message.h" | |
21 | #include "route.h" | |
22 | #include "babel_zebra.h" | |
23 | #include "neighbour.h" | |
24 | #include "route.h" | |
25 | #include "xroute.h" | |
f135ba52 | 26 | #include "babel_errors.h" |
ca10883e | 27 | |
9affd464 YZ |
28 | #ifndef VTYSH_EXTRACT_PL |
29 | #include "babeld/babel_interface_clippy.c" | |
30 | #endif | |
31 | ||
bf8d3d6a | 32 | DEFINE_MTYPE_STATIC(BABELD, BABEL_IF, "Babel Interface"); |
8b7454e9 | 33 | |
ca10883e DS |
34 | #define IS_ENABLE(ifp) (babel_enable_if_lookup(ifp->name) >= 0) |
35 | ||
36 | static int babel_enable_if_lookup (const char *ifname); | |
37 | static int babel_enable_if_add (const char *ifname); | |
38 | static int babel_enable_if_delete (const char *ifname); | |
39 | static int interface_recalculate(struct interface *ifp); | |
40 | static int interface_reset(struct interface *ifp); | |
41 | static int babel_if_new_hook (struct interface *ifp); | |
42 | static int babel_if_delete_hook (struct interface *ifp); | |
43 | static int interface_config_write (struct vty *vty); | |
44 | static babel_interface_nfo * babel_interface_allocate (void); | |
45 | static void babel_interface_free (babel_interface_nfo *bi); | |
46 | ||
47 | ||
48 | static vector babel_enable_if; /* enable interfaces (by cmd). */ | |
ca10883e | 49 | |
93d9b1af | 50 | int babel_ifp_up(struct interface *ifp) |
ca10883e | 51 | { |
03b7208c | 52 | debugf(BABEL_DEBUG_IF, "receive an 'interface up'"); |
ca10883e | 53 | |
ca10883e DS |
54 | interface_recalculate(ifp); |
55 | return 0; | |
56 | } | |
57 | ||
58 | int | |
b0b69e59 | 59 | babel_ifp_down(struct interface *ifp) |
ca10883e | 60 | { |
03b7208c | 61 | debugf(BABEL_DEBUG_IF, "receive an 'interface down'"); |
ca10883e | 62 | |
ca10883e DS |
63 | if (ifp == NULL) { |
64 | return 0; | |
65 | } | |
66 | ||
67 | interface_reset(ifp); | |
68 | return 0; | |
69 | } | |
70 | ||
ef7bd2a3 | 71 | int babel_ifp_create (struct interface *ifp) |
ca10883e | 72 | { |
03b7208c | 73 | debugf(BABEL_DEBUG_IF, "receive an 'interface add'"); |
ca10883e | 74 | |
ca10883e | 75 | interface_recalculate(ifp); |
3c3c3252 | 76 | |
ef7bd2a3 DS |
77 | return 0; |
78 | } | |
ca10883e DS |
79 | |
80 | int | |
3c3c3252 | 81 | babel_ifp_destroy(struct interface *ifp) |
ca10883e | 82 | { |
03b7208c | 83 | debugf(BABEL_DEBUG_IF, "receive an 'interface delete'"); |
ca10883e | 84 | |
ca10883e DS |
85 | if (IS_ENABLE(ifp)) |
86 | interface_reset(ifp); | |
87 | ||
ca10883e DS |
88 | return 0; |
89 | } | |
90 | ||
91 | int | |
121f9dee | 92 | babel_interface_address_add (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
93 | { |
94 | babel_interface_nfo *babel_ifp; | |
95 | struct connected *ifc; | |
96 | struct prefix *prefix; | |
97 | ||
03b7208c | 98 | debugf(BABEL_DEBUG_IF, "receive an 'interface address add'"); |
ca10883e DS |
99 | |
100 | ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD, | |
121f9dee | 101 | zclient->ibuf, vrf_id); |
ca10883e DS |
102 | |
103 | if (ifc == NULL) | |
104 | return 0; | |
105 | ||
106 | prefix = ifc->address; | |
107 | ||
108 | if (prefix->family == AF_INET) { | |
109 | flush_interface_routes(ifc->ifp, 0); | |
110 | babel_ifp = babel_get_if_nfo(ifc->ifp); | |
111 | if (babel_ifp->ipv4 == NULL) { | |
112 | babel_ifp->ipv4 = malloc(4); | |
113 | if (babel_ifp->ipv4 == NULL) { | |
5b003f31 | 114 | flog_err(EC_BABEL_MEMORY, "not enough memory"); |
ca10883e DS |
115 | } else { |
116 | memcpy(babel_ifp->ipv4, &prefix->u.prefix4, 4); | |
117 | } | |
118 | } | |
119 | } | |
120 | ||
121 | send_request(ifc->ifp, NULL, 0); | |
122 | send_update(ifc->ifp, 0, NULL, 0); | |
123 | ||
124 | return 0; | |
125 | } | |
126 | ||
127 | int | |
121f9dee | 128 | babel_interface_address_delete (ZAPI_CALLBACK_ARGS) |
ca10883e DS |
129 | { |
130 | babel_interface_nfo *babel_ifp; | |
131 | struct connected *ifc; | |
132 | struct prefix *prefix; | |
133 | ||
03b7208c | 134 | debugf(BABEL_DEBUG_IF, "receive an 'interface address delete'"); |
ca10883e DS |
135 | |
136 | ifc = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_DELETE, | |
121f9dee | 137 | zclient->ibuf, vrf_id); |
ca10883e DS |
138 | |
139 | if (ifc == NULL) | |
140 | return 0; | |
141 | ||
142 | prefix = ifc->address; | |
143 | ||
144 | if (prefix->family == AF_INET) { | |
145 | flush_interface_routes(ifc->ifp, 0); | |
146 | babel_ifp = babel_get_if_nfo(ifc->ifp); | |
8643c2e5 DA |
147 | if (babel_ifp->ipv4 != NULL |
148 | && memcmp(babel_ifp->ipv4, &prefix->u.prefix4, IPV4_MAX_BYTELEN) | |
149 | == 0) { | |
150 | free(babel_ifp->ipv4); | |
151 | babel_ifp->ipv4 = NULL; | |
ca10883e DS |
152 | } |
153 | } | |
154 | ||
155 | send_request(ifc->ifp, NULL, 0); | |
156 | send_update(ifc->ifp, 0, NULL, 0); | |
157 | ||
1f3255e5 | 158 | connected_free(&ifc); |
ca10883e DS |
159 | return 0; |
160 | } | |
161 | ||
162 | /* Lookup function. */ | |
163 | static int | |
164 | babel_enable_if_lookup (const char *ifname) | |
165 | { | |
166 | unsigned int i; | |
167 | char *str; | |
168 | ||
169 | for (i = 0; i < vector_active (babel_enable_if); i++) | |
170 | if ((str = vector_slot (babel_enable_if, i)) != NULL) | |
171 | if (strcmp (str, ifname) == 0) | |
172 | return i; | |
173 | return -1; | |
174 | } | |
175 | ||
176 | /* Add interface to babel_enable_if. */ | |
177 | static int | |
178 | babel_enable_if_add (const char *ifname) | |
179 | { | |
180 | int ret; | |
181 | struct interface *ifp = NULL; | |
182 | ||
183 | ret = babel_enable_if_lookup (ifname); | |
184 | if (ret >= 0) | |
185 | return -1; | |
186 | ||
187 | vector_set (babel_enable_if, strdup (ifname)); | |
188 | ||
a36898e7 | 189 | ifp = if_lookup_by_name(ifname, VRF_DEFAULT); |
ca10883e DS |
190 | if (ifp != NULL) |
191 | interface_recalculate(ifp); | |
192 | ||
193 | return 1; | |
194 | } | |
195 | ||
196 | /* Delete interface from babel_enable_if. */ | |
197 | static int | |
198 | babel_enable_if_delete (const char *ifname) | |
199 | { | |
200 | int babel_enable_if_index; | |
201 | char *str; | |
202 | struct interface *ifp = NULL; | |
203 | ||
204 | babel_enable_if_index = babel_enable_if_lookup (ifname); | |
205 | if (babel_enable_if_index < 0) | |
206 | return -1; | |
207 | ||
208 | str = vector_slot (babel_enable_if, babel_enable_if_index); | |
209 | free (str); | |
210 | vector_unset (babel_enable_if, babel_enable_if_index); | |
211 | ||
a36898e7 | 212 | ifp = if_lookup_by_name(ifname, VRF_DEFAULT); |
ca10883e DS |
213 | if (ifp != NULL) |
214 | interface_reset(ifp); | |
215 | ||
216 | return 1; | |
217 | } | |
218 | ||
219 | /* [Babel Command] Babel enable on specified interface or matched network. */ | |
220 | DEFUN (babel_network, | |
221 | babel_network_cmd, | |
222 | "network IF_OR_ADDR", | |
223 | "Enable Babel protocol on specified interface or network.\n" | |
f84d11d1 | 224 | "Interface or address\n") |
ca10883e DS |
225 | { |
226 | int ret; | |
227 | struct prefix p; | |
228 | ||
229 | ret = str2prefix (argv[1]->arg, &p); | |
230 | ||
231 | /* Given string is: */ | |
232 | if (ret) /* an IPv4 or v6 network */ | |
233 | return CMD_ERR_NO_MATCH; /* not implemented yet */ | |
234 | else /* an interface name */ | |
235 | ret = babel_enable_if_add (argv[1]->arg); | |
236 | ||
237 | if (ret < 0) { | |
5c7571d4 | 238 | vty_out (vty, "There is same network configuration %s\n", |
96ade3ed | 239 | argv[1]->arg); |
851fcbae | 240 | return CMD_WARNING; |
ca10883e DS |
241 | } |
242 | ||
243 | return CMD_SUCCESS; | |
244 | } | |
245 | ||
246 | /* [Babel Command] Babel enable on specified interface or matched network. */ | |
247 | DEFUN (no_babel_network, | |
248 | no_babel_network_cmd, | |
249 | "no network IF_OR_ADDR", | |
250 | NO_STR | |
251 | "Disable Babel protocol on specified interface or network.\n" | |
bd8d8973 | 252 | "Interface or address\n") |
ca10883e DS |
253 | { |
254 | int ret; | |
255 | struct prefix p; | |
256 | ||
257 | ret = str2prefix (argv[2]->arg, &p); | |
258 | ||
259 | /* Given string is: */ | |
260 | if (ret) /* an IPv4 or v6 network */ | |
261 | return CMD_ERR_NO_MATCH; /* not implemented yet */ | |
262 | else /* an interface name */ | |
263 | ret = babel_enable_if_delete (argv[2]->arg); | |
264 | ||
265 | if (ret < 0) { | |
5c7571d4 | 266 | vty_out (vty, "can't find network %s\n",argv[2]->arg); |
f1a05de9 | 267 | return CMD_WARNING_CONFIG_FAILED; |
ca10883e DS |
268 | } |
269 | ||
270 | return CMD_SUCCESS; | |
271 | } | |
272 | ||
273 | /* There are a number of interface parameters that must be changed when | |
274 | an interface becomes wired/wireless. In Quagga, they cannot be | |
275 | configured separately. */ | |
276 | ||
277 | static void | |
278 | babel_set_wired_internal(babel_interface_nfo *babel_ifp, int wired) | |
279 | { | |
280 | if(wired) { | |
44fab24d | 281 | SET_FLAG(babel_ifp->flags, BABEL_IF_WIRED); |
282 | SET_FLAG(babel_ifp->flags, BABEL_IF_SPLIT_HORIZON); | |
ca10883e DS |
283 | babel_ifp->cost = BABEL_DEFAULT_RXCOST_WIRED; |
284 | babel_ifp->channel = BABEL_IF_CHANNEL_NONINTERFERING; | |
44fab24d | 285 | UNSET_FLAG(babel_ifp->flags, BABEL_IF_LQ); |
286 | } | |
287 | else { | |
288 | UNSET_FLAG(babel_ifp->flags, BABEL_IF_WIRED); | |
289 | UNSET_FLAG(babel_ifp->flags, BABEL_IF_SPLIT_HORIZON); | |
ca10883e DS |
290 | babel_ifp->cost = BABEL_DEFAULT_RXCOST_WIRELESS; |
291 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
44fab24d | 292 | SET_FLAG(babel_ifp->flags, BABEL_IF_LQ); |
ca10883e DS |
293 | } |
294 | ||
295 | } | |
296 | ||
297 | /* [Interface Command] Tell the interface is wire. */ | |
9affd464 | 298 | DEFPY (babel_set_wired, |
ca10883e | 299 | babel_set_wired_cmd, |
9affd464 YZ |
300 | "[no] babel wired", |
301 | NO_STR | |
ca10883e | 302 | "Babel interface commands\n" |
bd8d8973 | 303 | "Enable wired optimizations\n") |
ca10883e DS |
304 | { |
305 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
306 | babel_interface_nfo *babel_ifp; | |
307 | ||
308 | babel_ifp = babel_get_if_nfo(ifp); | |
309 | ||
310 | assert (babel_ifp != NULL); | |
9affd464 | 311 | babel_set_wired_internal(babel_ifp, no ? 0 : 1); |
ca10883e DS |
312 | return CMD_SUCCESS; |
313 | } | |
314 | ||
315 | /* [Interface Command] Tell the interface is wireless (default). */ | |
9affd464 | 316 | DEFPY (babel_set_wireless, |
ca10883e | 317 | babel_set_wireless_cmd, |
9affd464 YZ |
318 | "[no] babel wireless", |
319 | NO_STR | |
ca10883e | 320 | "Babel interface commands\n" |
bd8d8973 | 321 | "Disable wired optimizations (assume wireless)\n") |
ca10883e DS |
322 | { |
323 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
324 | babel_interface_nfo *babel_ifp; | |
325 | ||
326 | babel_ifp = babel_get_if_nfo(ifp); | |
327 | ||
328 | assert (babel_ifp != NULL); | |
9affd464 | 329 | babel_set_wired_internal(babel_ifp, no ? 1 : 0); |
ca10883e DS |
330 | return CMD_SUCCESS; |
331 | } | |
332 | ||
333 | /* [Interface Command] Enable split horizon. */ | |
9affd464 | 334 | DEFPY (babel_split_horizon, |
ca10883e | 335 | babel_split_horizon_cmd, |
9affd464 | 336 | "[no] babel split-horizon", |
ca10883e DS |
337 | NO_STR |
338 | "Babel interface commands\n" | |
9affd464 | 339 | "Enable split horizon processing\n") |
ca10883e DS |
340 | { |
341 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
342 | babel_interface_nfo *babel_ifp; | |
343 | ||
344 | babel_ifp = babel_get_if_nfo(ifp); | |
345 | ||
346 | assert (babel_ifp != NULL); | |
9affd464 YZ |
347 | if (!no) |
348 | SET_FLAG(babel_ifp->flags, BABEL_IF_SPLIT_HORIZON); | |
349 | else | |
350 | UNSET_FLAG(babel_ifp->flags, BABEL_IF_SPLIT_HORIZON); | |
ca10883e DS |
351 | return CMD_SUCCESS; |
352 | } | |
353 | ||
354 | /* [Interface Command]. */ | |
9affd464 | 355 | DEFPY (babel_set_hello_interval, |
ca10883e | 356 | babel_set_hello_interval_cmd, |
9affd464 YZ |
357 | "[no] babel hello-interval (20-655340)", |
358 | NO_STR | |
ca10883e DS |
359 | "Babel interface commands\n" |
360 | "Time between scheduled hellos\n" | |
361 | "Milliseconds\n") | |
362 | { | |
363 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
364 | babel_interface_nfo *babel_ifp; | |
ca10883e DS |
365 | |
366 | babel_ifp = babel_get_if_nfo(ifp); | |
367 | assert (babel_ifp != NULL); | |
368 | ||
9affd464 YZ |
369 | babel_ifp->hello_interval = no ? |
370 | BABEL_DEFAULT_HELLO_INTERVAL : hello_interval; | |
ca10883e DS |
371 | return CMD_SUCCESS; |
372 | } | |
373 | ||
374 | /* [Interface Command]. */ | |
9affd464 | 375 | DEFPY (babel_set_update_interval, |
ca10883e | 376 | babel_set_update_interval_cmd, |
9affd464 YZ |
377 | "[no] babel update-interval (20-655340)", |
378 | NO_STR | |
ca10883e DS |
379 | "Babel interface commands\n" |
380 | "Time between scheduled updates\n" | |
381 | "Milliseconds\n") | |
382 | { | |
383 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
384 | babel_interface_nfo *babel_ifp; | |
ca10883e DS |
385 | |
386 | babel_ifp = babel_get_if_nfo(ifp); | |
387 | assert (babel_ifp != NULL); | |
388 | ||
9affd464 YZ |
389 | babel_ifp->update_interval = no ? |
390 | BABEL_DEFAULT_UPDATE_INTERVAL : update_interval; | |
ca10883e DS |
391 | return CMD_SUCCESS; |
392 | } | |
393 | ||
9affd464 | 394 | DEFPY (babel_set_rxcost, |
ca10883e | 395 | babel_set_rxcost_cmd, |
9affd464 YZ |
396 | "[no] babel rxcost (1-65534)", |
397 | NO_STR | |
ca10883e DS |
398 | "Babel interface commands\n" |
399 | "Rxcost multiplier\n" | |
bd8d8973 | 400 | "Units\n") |
ca10883e DS |
401 | { |
402 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
403 | babel_interface_nfo *babel_ifp; | |
ca10883e DS |
404 | |
405 | babel_ifp = babel_get_if_nfo(ifp); | |
406 | assert (babel_ifp != NULL); | |
407 | ||
9affd464 YZ |
408 | if (no) |
409 | rxcost = CHECK_FLAG(babel_ifp->flags, BABEL_IF_WIRED) ? | |
410 | BABEL_DEFAULT_RXCOST_WIRED : BABEL_DEFAULT_RXCOST_WIRELESS; | |
411 | ||
ca10883e DS |
412 | babel_ifp->cost = rxcost; |
413 | return CMD_SUCCESS; | |
414 | } | |
415 | ||
9affd464 | 416 | DEFPY (babel_set_rtt_decay, |
ca10883e | 417 | babel_set_rtt_decay_cmd, |
9affd464 YZ |
418 | "[no] babel rtt-decay (1-256)", |
419 | NO_STR | |
ca10883e DS |
420 | "Babel interface commands\n" |
421 | "Decay factor for exponential moving average of RTT samples\n" | |
bd8d8973 | 422 | "Units of 1/256\n") |
ca10883e DS |
423 | { |
424 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
425 | babel_interface_nfo *babel_ifp; | |
ca10883e DS |
426 | |
427 | babel_ifp = babel_get_if_nfo(ifp); | |
428 | assert (babel_ifp != NULL); | |
429 | ||
9affd464 | 430 | babel_ifp->rtt_decay = no ? BABEL_DEFAULT_RTT_DECAY : rtt_decay; |
ca10883e DS |
431 | return CMD_SUCCESS; |
432 | } | |
433 | ||
9affd464 | 434 | DEFPY (babel_set_rtt_min, |
ca10883e | 435 | babel_set_rtt_min_cmd, |
9affd464 YZ |
436 | "[no] babel rtt-min (1-65535)", |
437 | NO_STR | |
ca10883e DS |
438 | "Babel interface commands\n" |
439 | "Minimum RTT starting for increasing cost\n" | |
bd8d8973 | 440 | "Milliseconds\n") |
ca10883e DS |
441 | { |
442 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
443 | babel_interface_nfo *babel_ifp; | |
ca10883e DS |
444 | |
445 | babel_ifp = babel_get_if_nfo(ifp); | |
446 | assert (babel_ifp != NULL); | |
447 | ||
896cf5c5 | 448 | /* The value is entered in milliseconds but stored as microseconds. */ |
9affd464 | 449 | babel_ifp->rtt_min = no ? BABEL_DEFAULT_RTT_MIN : rtt_min * 1000; |
ca10883e DS |
450 | return CMD_SUCCESS; |
451 | } | |
452 | ||
9affd464 | 453 | DEFPY (babel_set_rtt_max, |
ca10883e | 454 | babel_set_rtt_max_cmd, |
9affd464 YZ |
455 | "[no] babel rtt-max (1-65535)", |
456 | NO_STR | |
ca10883e DS |
457 | "Babel interface commands\n" |
458 | "Maximum RTT\n" | |
bd8d8973 | 459 | "Milliseconds\n") |
ca10883e DS |
460 | { |
461 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
462 | babel_interface_nfo *babel_ifp; | |
ca10883e DS |
463 | |
464 | babel_ifp = babel_get_if_nfo(ifp); | |
465 | assert (babel_ifp != NULL); | |
466 | ||
896cf5c5 | 467 | /* The value is entered in milliseconds but stored as microseconds. */ |
9affd464 | 468 | babel_ifp->rtt_max = no ? BABEL_DEFAULT_RTT_MAX : rtt_max * 1000; |
ca10883e DS |
469 | return CMD_SUCCESS; |
470 | } | |
471 | ||
9affd464 | 472 | DEFPY (babel_set_max_rtt_penalty, |
ca10883e | 473 | babel_set_max_rtt_penalty_cmd, |
9affd464 YZ |
474 | "[no] babel max-rtt-penalty (0-65535)", |
475 | NO_STR | |
ca10883e DS |
476 | "Babel interface commands\n" |
477 | "Maximum additional cost due to RTT\n" | |
bd8d8973 | 478 | "Milliseconds\n") |
ca10883e DS |
479 | { |
480 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
481 | babel_interface_nfo *babel_ifp; | |
ca10883e DS |
482 | |
483 | babel_ifp = babel_get_if_nfo(ifp); | |
484 | assert (babel_ifp != NULL); | |
485 | ||
9affd464 YZ |
486 | babel_ifp->max_rtt_penalty = no ? |
487 | BABEL_DEFAULT_MAX_RTT_PENALTY : max_rtt_penalty; | |
ca10883e DS |
488 | return CMD_SUCCESS; |
489 | } | |
490 | ||
9affd464 | 491 | DEFPY (babel_set_enable_timestamps, |
ca10883e | 492 | babel_set_enable_timestamps_cmd, |
9affd464 | 493 | "[no] babel enable-timestamps", |
bd8d8973 | 494 | NO_STR |
ca10883e | 495 | "Babel interface commands\n" |
9affd464 | 496 | "Enable timestamps\n") |
ca10883e DS |
497 | { |
498 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
499 | babel_interface_nfo *babel_ifp; | |
500 | ||
501 | babel_ifp = babel_get_if_nfo(ifp); | |
502 | assert (babel_ifp != NULL); | |
9affd464 YZ |
503 | if (!no) |
504 | SET_FLAG(babel_ifp->flags, BABEL_IF_TIMESTAMPS); | |
505 | else | |
506 | UNSET_FLAG(babel_ifp->flags, BABEL_IF_TIMESTAMPS); | |
ca10883e DS |
507 | return CMD_SUCCESS; |
508 | } | |
509 | ||
9affd464 | 510 | DEFPY (babel_set_channel, |
ca10883e | 511 | babel_set_channel_cmd, |
9affd464 YZ |
512 | "[no] babel channel <(1-254)$ch|interfering$interfering|" |
513 | "noninterfering$noninterfering>", | |
514 | NO_STR | |
ca10883e DS |
515 | "Babel interface commands\n" |
516 | "Channel number for diversity routing\n" | |
9affd464 YZ |
517 | "Number\n" |
518 | "Mark channel as interfering\n" | |
519 | "Mark channel as noninterfering\n" | |
520 | ) | |
ca10883e DS |
521 | { |
522 | VTY_DECLVAR_CONTEXT(interface, ifp); | |
523 | babel_interface_nfo *babel_ifp; | |
524 | ||
525 | babel_ifp = babel_get_if_nfo(ifp); | |
526 | assert (babel_ifp != NULL); | |
527 | ||
9affd464 YZ |
528 | if (no) |
529 | ch = CHECK_FLAG(babel_ifp->flags, BABEL_IF_WIRED) ? | |
530 | BABEL_IF_CHANNEL_NONINTERFERING : BABEL_IF_CHANNEL_INTERFERING; | |
531 | else if (interfering) | |
532 | ch = BABEL_IF_CHANNEL_INTERFERING; | |
533 | else if (noninterfering) | |
534 | ch = BABEL_IF_CHANNEL_NONINTERFERING; | |
ca10883e | 535 | |
9affd464 | 536 | babel_ifp->channel = ch; |
ca10883e DS |
537 | return CMD_SUCCESS; |
538 | } | |
539 | ||
540 | /* This should be no more than half the hello interval, so that hellos | |
541 | aren't sent late. The result is in milliseconds. */ | |
542 | unsigned | |
543 | jitter(babel_interface_nfo *babel_ifp, int urgent) | |
544 | { | |
545 | unsigned interval = babel_ifp->hello_interval; | |
546 | if(urgent) | |
547 | interval = MIN(interval, 100); | |
548 | else | |
549 | interval = MIN(interval, 4000); | |
550 | return roughly(interval) / 4; | |
551 | } | |
552 | ||
553 | unsigned | |
554 | update_jitter(babel_interface_nfo *babel_ifp, int urgent) | |
555 | { | |
556 | unsigned interval = babel_ifp->hello_interval; | |
557 | if(urgent) | |
558 | interval = MIN(interval, 100); | |
559 | else | |
560 | interval = MIN(interval, 4000); | |
561 | return roughly(interval); | |
562 | } | |
563 | ||
564 | /* calculate babeld's specific datas of an interface (change when the interface | |
565 | change) */ | |
566 | static int | |
567 | interface_recalculate(struct interface *ifp) | |
568 | { | |
569 | babel_interface_nfo *babel_ifp = babel_get_if_nfo(ifp); | |
570 | unsigned char *tmp = NULL; | |
571 | int mtu, rc; | |
572 | struct ipv6_mreq mreq; | |
573 | ||
574 | if (!IS_ENABLE(ifp)) | |
575 | return -1; | |
576 | ||
577 | if (!if_is_operative(ifp) || !CHECK_FLAG(ifp->flags, IFF_RUNNING)) { | |
578 | interface_reset(ifp); | |
579 | return -1; | |
580 | } | |
581 | ||
44fab24d | 582 | SET_FLAG(babel_ifp->flags, BABEL_IF_IS_UP); |
ca10883e DS |
583 | |
584 | mtu = MIN(ifp->mtu, ifp->mtu6); | |
585 | ||
586 | /* We need to be able to fit at least two messages into a packet, | |
587 | so MTUs below 116 require lower layer fragmentation. */ | |
588 | /* In IPv6, the minimum MTU is 1280, and every host must be able | |
589 | to reassemble up to 1500 bytes, but I'd rather not rely on this. */ | |
590 | if(mtu < 128) { | |
591 | debugf(BABEL_DEBUG_IF, "Suspiciously low MTU %d on interface %s (%d).", | |
592 | mtu, ifp->name, ifp->ifindex); | |
593 | mtu = 128; | |
594 | } | |
595 | ||
596 | /* 4 for Babel header; 40 for IPv6 header, 8 for UDP header, 12 for good luck. */ | |
597 | babel_ifp->bufsize = mtu - 4 - 60; | |
598 | tmp = babel_ifp->sendbuf; | |
599 | babel_ifp->sendbuf = realloc(babel_ifp->sendbuf, babel_ifp->bufsize); | |
600 | if(babel_ifp->sendbuf == NULL) { | |
5b003f31 | 601 | flog_err(EC_BABEL_MEMORY, "Couldn't reallocate sendbuf."); |
ca10883e DS |
602 | free(tmp); |
603 | babel_ifp->bufsize = 0; | |
604 | return -1; | |
605 | } | |
606 | tmp = NULL; | |
607 | ||
608 | rc = resize_receive_buffer(mtu); | |
609 | if(rc < 0) | |
1d5453d6 | 610 | zlog_warn("couldn't resize receive buffer for interface %s (%d) (%d bytes).", |
ca10883e DS |
611 | ifp->name, ifp->ifindex, mtu); |
612 | ||
613 | memset(&mreq, 0, sizeof(mreq)); | |
614 | memcpy(&mreq.ipv6mr_multiaddr, protocol_group, 16); | |
615 | mreq.ipv6mr_interface = ifp->ifindex; | |
616 | ||
617 | rc = setsockopt(protocol_socket, IPPROTO_IPV6, IPV6_JOIN_GROUP, | |
618 | (char*)&mreq, sizeof(mreq)); | |
6d078ff8 DS |
619 | if (rc < 0 && errno != EADDRINUSE) { |
620 | flog_err_sys(EC_LIB_SOCKET, | |
621 | "setsockopt(IPV6_JOIN_GROUP) on interface '%s': %s", | |
622 | ifp->name, safe_strerror(errno)); | |
623 | /* This is probably due to a missing link-local address, | |
624 | so down this interface, and wait until the main loop | |
625 | tries to up it again. */ | |
626 | interface_reset(ifp); | |
627 | return -1; | |
ca10883e DS |
628 | } |
629 | ||
630 | set_timeout(&babel_ifp->hello_timeout, babel_ifp->hello_interval); | |
631 | set_timeout(&babel_ifp->update_timeout, babel_ifp->update_interval); | |
632 | send_hello(ifp); | |
633 | send_request(ifp, NULL, 0); | |
634 | ||
635 | update_interface_metric(ifp); | |
636 | ||
637 | debugf(BABEL_DEBUG_COMMON, | |
638 | "Upped interface %s (%s, cost=%d, channel=%d%s).", | |
639 | ifp->name, | |
44fab24d | 640 | CHECK_FLAG(babel_ifp->flags, BABEL_IF_WIRED) ? "wired" : "wireless", |
ca10883e DS |
641 | babel_ifp->cost, |
642 | babel_ifp->channel, | |
643 | babel_ifp->ipv4 ? ", IPv4" : ""); | |
644 | ||
645 | if(rc > 0) | |
646 | send_update(ifp, 0, NULL, 0); | |
647 | ||
648 | return 1; | |
649 | } | |
650 | ||
651 | /* Reset the interface as it was new: it's not removed from the interface list, | |
652 | and may be considered as a upped interface. */ | |
653 | static int | |
654 | interface_reset(struct interface *ifp) | |
655 | { | |
656 | int rc; | |
657 | struct ipv6_mreq mreq; | |
658 | babel_interface_nfo *babel_ifp = babel_get_if_nfo(ifp); | |
659 | ||
44fab24d | 660 | if (!CHECK_FLAG(babel_ifp->flags, BABEL_IF_IS_UP)) |
ca10883e DS |
661 | return 0; |
662 | ||
663 | debugf(BABEL_DEBUG_IF, "interface reset: %s", ifp->name); | |
44fab24d | 664 | |
665 | UNSET_FLAG(babel_ifp->flags, BABEL_IF_IS_UP); | |
ca10883e DS |
666 | |
667 | flush_interface_routes(ifp, 0); | |
668 | babel_ifp->buffered = 0; | |
669 | babel_ifp->bufsize = 0; | |
670 | free(babel_ifp->sendbuf); | |
671 | babel_ifp->num_buffered_updates = 0; | |
672 | babel_ifp->update_bufsize = 0; | |
673 | if(babel_ifp->buffered_updates) | |
674 | free(babel_ifp->buffered_updates); | |
675 | babel_ifp->buffered_updates = NULL; | |
676 | babel_ifp->sendbuf = NULL; | |
677 | ||
678 | if(ifp->ifindex > 0) { | |
679 | memset(&mreq, 0, sizeof(mreq)); | |
680 | memcpy(&mreq.ipv6mr_multiaddr, protocol_group, 16); | |
681 | mreq.ipv6mr_interface = ifp->ifindex; | |
682 | rc = setsockopt(protocol_socket, IPPROTO_IPV6, IPV6_LEAVE_GROUP, | |
683 | (char*)&mreq, sizeof(mreq)); | |
684 | if(rc < 0) | |
450971aa | 685 | flog_err_sys(EC_LIB_SOCKET, |
f135ba52 DS |
686 | "setsockopt(IPV6_LEAVE_GROUP) on interface '%s': %s", |
687 | ifp->name, safe_strerror(errno)); | |
ca10883e DS |
688 | } |
689 | ||
690 | update_interface_metric(ifp); | |
691 | ||
692 | debugf(BABEL_DEBUG_COMMON,"Upped network %s (%s, cost=%d%s).", | |
693 | ifp->name, | |
44fab24d | 694 | CHECK_FLAG(babel_ifp->flags, BABEL_IF_WIRED) ? "wired" : "wireless", |
ca10883e DS |
695 | babel_ifp->cost, |
696 | babel_ifp->ipv4 ? ", IPv4" : ""); | |
697 | ||
698 | return 1; | |
699 | } | |
700 | ||
701 | /* Send retraction to all, and reset all interfaces statistics. */ | |
702 | void | |
703 | babel_interface_close_all(void) | |
704 | { | |
f4e14fdb | 705 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
ca10883e | 706 | struct interface *ifp = NULL; |
ca10883e | 707 | |
f4e14fdb | 708 | FOR_ALL_INTERFACES(vrf, ifp) { |
ca10883e DS |
709 | if(!if_up(ifp)) |
710 | continue; | |
711 | send_wildcard_retraction(ifp); | |
712 | /* Make sure that we expire quickly from our neighbours' | |
713 | association caches. */ | |
714 | send_hello_noupdate(ifp, 10); | |
715 | flushbuf(ifp); | |
716 | usleep(roughly(1000)); | |
717 | gettime(&babel_now); | |
718 | } | |
f4e14fdb | 719 | FOR_ALL_INTERFACES(vrf, ifp) { |
ca10883e DS |
720 | if(!if_up(ifp)) |
721 | continue; | |
722 | /* Make sure they got it. */ | |
723 | send_wildcard_retraction(ifp); | |
724 | send_hello_noupdate(ifp, 1); | |
725 | flushbuf(ifp); | |
726 | usleep(roughly(10000)); | |
727 | gettime(&babel_now); | |
728 | interface_reset(ifp); | |
729 | } | |
730 | } | |
731 | ||
732 | /* return "true" if address is one of our ipv6 addresses */ | |
733 | int | |
734 | is_interface_ll_address(struct interface *ifp, const unsigned char *address) | |
735 | { | |
736 | struct connected *connected; | |
737 | struct listnode *node; | |
738 | ||
739 | if(!if_up(ifp)) | |
740 | return 0; | |
741 | ||
742 | FOR_ALL_INTERFACES_ADDRESSES(ifp, connected, node) { | |
8643c2e5 DA |
743 | if (connected->address->family == AF_INET6 |
744 | && memcmp(&connected->address->u.prefix6, address, | |
745 | IPV6_MAX_BYTELEN) | |
746 | == 0) | |
747 | return 1; | |
ca10883e DS |
748 | } |
749 | ||
750 | return 0; | |
751 | } | |
752 | ||
753 | static void | |
754 | show_babel_interface_sub (struct vty *vty, struct interface *ifp) | |
755 | { | |
756 | int is_up; | |
757 | babel_interface_nfo *babel_ifp; | |
758 | ||
5c7571d4 | 759 | vty_out (vty, "%s is %s\n", ifp->name, |
96ade3ed | 760 | ((is_up = if_is_operative(ifp)) ? "up" : "down")); |
5c7571d4 | 761 | vty_out (vty, " ifindex %u, MTU %u bytes %s\n", |
96ade3ed | 762 | ifp->ifindex, MIN(ifp->mtu, ifp->mtu6), if_flag_dump(ifp->flags)); |
ca10883e DS |
763 | |
764 | if (!IS_ENABLE(ifp)) | |
765 | { | |
5c7571d4 | 766 | vty_out (vty, " Babel protocol is not enabled on this interface\n"); |
ca10883e DS |
767 | return; |
768 | } | |
769 | if (!is_up) | |
770 | { | |
5c7571d4 DL |
771 | vty_out (vty, |
772 | " Babel protocol is enabled, but not running on this interface\n"); | |
ca10883e DS |
773 | return; |
774 | } | |
775 | babel_ifp = babel_get_if_nfo (ifp); | |
5c7571d4 | 776 | vty_out (vty, " Babel protocol is running on this interface\n"); |
181039f3 | 777 | vty_out (vty, " Operating mode is \"%s\"\n", |
96ade3ed | 778 | CHECK_FLAG(babel_ifp->flags, BABEL_IF_WIRED) ? "wired" : "wireless"); |
5c7571d4 | 779 | vty_out (vty, " Split horizon mode is %s\n", |
96ade3ed | 780 | CHECK_FLAG(babel_ifp->flags, BABEL_IF_SPLIT_HORIZON) ? "On" : "Off"); |
5c7571d4 DL |
781 | vty_out (vty, " Hello interval is %u ms\n", babel_ifp->hello_interval); |
782 | vty_out (vty, " Update interval is %u ms\n", babel_ifp->update_interval); | |
783 | vty_out (vty, " Rxcost multiplier is %u\n", babel_ifp->cost); | |
ca10883e DS |
784 | } |
785 | ||
786 | DEFUN (show_babel_interface, | |
787 | show_babel_interface_cmd, | |
788 | "show babel interface [IFNAME]", | |
789 | SHOW_STR | |
790 | "Babel information\n" | |
791 | "Interface information\n" | |
792 | "Interface\n") | |
793 | { | |
f4e14fdb | 794 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
ca10883e | 795 | struct interface *ifp; |
ca10883e DS |
796 | |
797 | if (argc == 3) | |
798 | { | |
451fda4f | 799 | FOR_ALL_INTERFACES (vrf, ifp) |
ca10883e DS |
800 | show_babel_interface_sub (vty, ifp); |
801 | return CMD_SUCCESS; | |
802 | } | |
a36898e7 | 803 | if ((ifp = if_lookup_by_name (argv[3]->arg, VRF_DEFAULT)) == NULL) |
ca10883e | 804 | { |
5c7571d4 | 805 | vty_out (vty, "No such interface name\n"); |
ca10883e DS |
806 | return CMD_WARNING; |
807 | } | |
808 | show_babel_interface_sub (vty, ifp); | |
809 | return CMD_SUCCESS; | |
810 | } | |
811 | ||
812 | static void | |
813 | show_babel_neighbour_sub (struct vty *vty, struct neighbour *neigh) | |
814 | { | |
181039f3 | 815 | vty_out (vty, |
3efd0893 | 816 | "Neighbour %s dev %s reach %04x rxcost %d txcost %d rtt %s rttcost %d%s.\n", |
ca10883e DS |
817 | format_address(neigh->address), |
818 | neigh->ifp->name, | |
819 | neigh->reach, | |
820 | neighbour_rxcost(neigh), | |
821 | neigh->txcost, | |
822 | format_thousands(neigh->rtt), | |
823 | neighbour_rttcost(neigh), | |
96ade3ed | 824 | if_up(neigh->ifp) ? "" : " (down)"); |
ca10883e DS |
825 | } |
826 | ||
827 | DEFUN (show_babel_neighbour, | |
828 | show_babel_neighbour_cmd, | |
829 | "show babel neighbor [IFNAME]", | |
830 | SHOW_STR | |
831 | "Babel information\n" | |
832 | "Print neighbors\n" | |
833 | "Interface\n") | |
834 | { | |
835 | struct neighbour *neigh; | |
836 | struct interface *ifp; | |
837 | ||
838 | if (argc == 3) { | |
839 | FOR_ALL_NEIGHBOURS(neigh) { | |
840 | show_babel_neighbour_sub(vty, neigh); | |
841 | } | |
842 | return CMD_SUCCESS; | |
843 | } | |
a36898e7 | 844 | if ((ifp = if_lookup_by_name (argv[3]->arg, VRF_DEFAULT)) == NULL) |
ca10883e | 845 | { |
5c7571d4 | 846 | vty_out (vty, "No such interface name\n"); |
ca10883e DS |
847 | return CMD_WARNING; |
848 | } | |
849 | FOR_ALL_NEIGHBOURS(neigh) { | |
850 | if(ifp->ifindex == neigh->ifp->ifindex) { | |
851 | show_babel_neighbour_sub(vty, neigh); | |
852 | } | |
853 | } | |
854 | return CMD_SUCCESS; | |
855 | } | |
856 | ||
857 | static int | |
858 | babel_prefix_eq(struct prefix *prefix, unsigned char *p, int plen) | |
859 | { | |
860 | if(prefix->family == AF_INET6) { | |
8643c2e5 DA |
861 | if (prefix->prefixlen != plen |
862 | || memcmp(&prefix->u.prefix6, p, IPV6_MAX_BYTELEN) != 0) | |
863 | return 0; | |
ca10883e | 864 | } else if(prefix->family == AF_INET) { |
8643c2e5 DA |
865 | if (plen < 96 || !v4mapped(p) || prefix->prefixlen != plen - 96 |
866 | || memcmp(&prefix->u.prefix4, p + 12, IPV4_MAX_BYTELEN) != 0) | |
867 | return 0; | |
ca10883e DS |
868 | } else { |
869 | return 0; | |
870 | } | |
871 | ||
872 | return 1; | |
873 | } | |
874 | ||
875 | static void | |
876 | show_babel_routes_sub(struct babel_route *route, struct vty *vty, | |
877 | struct prefix *prefix) | |
878 | { | |
8643c2e5 DA |
879 | const unsigned char *nexthop = |
880 | memcmp(route->nexthop, route->neigh->address, IPV6_MAX_BYTELEN) | |
881 | == 0 | |
882 | ? NULL | |
883 | : route->nexthop; | |
884 | char channels[100]; | |
885 | ||
886 | if (prefix | |
887 | && !babel_prefix_eq(prefix, route->src->prefix, route->src->plen)) | |
888 | return; | |
889 | ||
890 | if (route->channels[0] == 0) | |
891 | channels[0] = '\0'; | |
892 | else { | |
893 | int k, j = 0; | |
894 | snprintf(channels, sizeof(channels), " chan ("); | |
895 | j = strlen(channels); | |
896 | for (k = 0; k < DIVERSITY_HOPS; k++) { | |
897 | if (route->channels[k] == 0) | |
898 | break; | |
899 | if (k > 0) | |
900 | channels[j++] = ','; | |
901 | snprintf(channels + j, 100 - j, "%u", | |
902 | route->channels[k]); | |
903 | j = strlen(channels); | |
904 | } | |
905 | snprintf(channels + j, 100 - j, ")"); | |
906 | if (k == 0) | |
907 | channels[0] = '\0'; | |
ca10883e DS |
908 | } |
909 | ||
181039f3 | 910 | vty_out (vty, |
3efd0893 | 911 | "%s metric %d refmetric %d id %s seqno %d%s age %d via %s neigh %s%s%s%s\n", |
ca10883e DS |
912 | format_prefix(route->src->prefix, route->src->plen), |
913 | route_metric(route), route->refmetric, | |
914 | format_eui64(route->src->id), | |
915 | (int)route->seqno, | |
916 | channels, | |
917 | (int)(babel_now.tv_sec - route->time), | |
918 | route->neigh->ifp->name, | |
919 | format_address(route->neigh->address), | |
920 | nexthop ? " nexthop " : "", | |
921 | nexthop ? format_address(nexthop) : "", | |
96ade3ed | 922 | route->installed ? " (installed)" : route_feasible(route) ? " (feasible)" : ""); |
ca10883e DS |
923 | } |
924 | ||
925 | static void | |
926 | show_babel_xroutes_sub (struct xroute *xroute, struct vty *vty, | |
927 | struct prefix *prefix) | |
928 | { | |
929 | if(prefix && !babel_prefix_eq(prefix, xroute->prefix, xroute->plen)) | |
930 | return; | |
931 | ||
5c7571d4 | 932 | vty_out (vty, "%s metric %d (exported)\n", |
ca10883e | 933 | format_prefix(xroute->prefix, xroute->plen), |
96ade3ed | 934 | xroute->metric); |
ca10883e DS |
935 | } |
936 | ||
937 | DEFUN (show_babel_route, | |
938 | show_babel_route_cmd, | |
939 | "show babel route", | |
940 | SHOW_STR | |
941 | "Babel information\n" | |
942 | "Babel internal routing table\n") | |
943 | { | |
944 | struct route_stream *routes = NULL; | |
945 | struct xroute_stream *xroutes = NULL; | |
946 | routes = route_stream(0); | |
947 | if(routes) { | |
948 | while(1) { | |
949 | struct babel_route *route = route_stream_next(routes); | |
950 | if(route == NULL) | |
951 | break; | |
952 | show_babel_routes_sub(route, vty, NULL); | |
953 | } | |
954 | route_stream_done(routes); | |
955 | } else { | |
5b003f31 | 956 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 957 | } |
dd15627e | 958 | xroutes = xroute_stream(); |
ca10883e DS |
959 | if(xroutes) { |
960 | while(1) { | |
961 | struct xroute *xroute = xroute_stream_next(xroutes); | |
962 | if(xroute == NULL) | |
963 | break; | |
964 | show_babel_xroutes_sub(xroute, vty, NULL); | |
965 | } | |
966 | xroute_stream_done(xroutes); | |
967 | } else { | |
5b003f31 | 968 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
969 | } |
970 | return CMD_SUCCESS; | |
971 | } | |
972 | ||
973 | DEFUN (show_babel_route_prefix, | |
974 | show_babel_route_prefix_cmd, | |
975 | "show babel route <A.B.C.D/M|X:X::X:X/M>", | |
976 | SHOW_STR | |
977 | "Babel information\n" | |
f7bf422e | 978 | "Babel internal routing table\n" |
ca10883e DS |
979 | "IPv4 prefix <network>/<length>\n" |
980 | "IPv6 prefix <network>/<length>\n") | |
981 | { | |
982 | struct route_stream *routes = NULL; | |
983 | struct xroute_stream *xroutes = NULL; | |
984 | struct prefix prefix; | |
985 | int ret; | |
986 | ||
987 | ret = str2prefix(argv[3]->arg, &prefix); | |
988 | if(ret == 0) { | |
5c7571d4 | 989 | vty_out (vty, "%% Malformed address\n"); |
ca10883e DS |
990 | return CMD_WARNING; |
991 | } | |
c258527b | 992 | |
ca10883e DS |
993 | routes = route_stream(0); |
994 | if(routes) { | |
995 | while(1) { | |
996 | struct babel_route *route = route_stream_next(routes); | |
997 | if(route == NULL) | |
998 | break; | |
999 | show_babel_routes_sub(route, vty, &prefix); | |
1000 | } | |
1001 | route_stream_done(routes); | |
1002 | } else { | |
5b003f31 | 1003 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1004 | } |
dd15627e | 1005 | xroutes = xroute_stream(); |
ca10883e DS |
1006 | if(xroutes) { |
1007 | while(1) { | |
1008 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1009 | if(xroute == NULL) | |
1010 | break; | |
1011 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1012 | } | |
1013 | xroute_stream_done(xroutes); | |
1014 | } else { | |
5b003f31 | 1015 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1016 | } |
1017 | return CMD_SUCCESS; | |
1018 | } | |
1019 | ||
1020 | ||
1021 | DEFUN (show_babel_route_addr, | |
1022 | show_babel_route_addr_cmd, | |
1023 | "show babel route A.B.C.D", | |
1024 | SHOW_STR | |
1025 | "Babel information\n" | |
f7bf422e | 1026 | "Babel internal routing table\n" |
ca10883e DS |
1027 | "IPv4 address <network>/<length>\n") |
1028 | { | |
1029 | struct in_addr addr; | |
1030 | char buf[INET_ADDRSTRLEN + 8]; | |
2bd8bc15 | 1031 | char buf1[INET_ADDRSTRLEN + 8]; |
ca10883e DS |
1032 | struct route_stream *routes = NULL; |
1033 | struct xroute_stream *xroutes = NULL; | |
1034 | struct prefix prefix; | |
1035 | int ret; | |
1036 | ||
1037 | ret = inet_aton (argv[3]->arg, &addr); | |
1038 | if (ret <= 0) { | |
5c7571d4 | 1039 | vty_out (vty, "%% Malformed address\n"); |
ca10883e DS |
1040 | return CMD_WARNING; |
1041 | } | |
1042 | ||
1043 | /* Quagga has no convenient prefix constructors. */ | |
2bd8bc15 MS |
1044 | snprintf(buf, sizeof(buf), "%s/%d", |
1045 | inet_ntop(AF_INET, &addr, buf1, sizeof(buf1)), 32); | |
ca10883e DS |
1046 | |
1047 | ret = str2prefix(buf, &prefix); | |
1048 | if (ret == 0) { | |
5c7571d4 | 1049 | vty_out (vty, "%% Parse error -- this shouldn't happen\n"); |
ca10883e DS |
1050 | return CMD_WARNING; |
1051 | } | |
1052 | ||
1053 | routes = route_stream(0); | |
1054 | if(routes) { | |
1055 | while(1) { | |
1056 | struct babel_route *route = route_stream_next(routes); | |
1057 | if(route == NULL) | |
1058 | break; | |
1059 | show_babel_routes_sub(route, vty, &prefix); | |
1060 | } | |
1061 | route_stream_done(routes); | |
1062 | } else { | |
5b003f31 | 1063 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1064 | } |
dd15627e | 1065 | xroutes = xroute_stream(); |
ca10883e DS |
1066 | if(xroutes) { |
1067 | while(1) { | |
1068 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1069 | if(xroute == NULL) | |
1070 | break; | |
1071 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1072 | } | |
1073 | xroute_stream_done(xroutes); | |
1074 | } else { | |
5b003f31 | 1075 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1076 | } |
1077 | return CMD_SUCCESS; | |
1078 | } | |
1079 | ||
1080 | DEFUN (show_babel_route_addr6, | |
1081 | show_babel_route_addr6_cmd, | |
1082 | "show babel route X:X::X:X", | |
1083 | SHOW_STR | |
1084 | "Babel information\n" | |
f7bf422e | 1085 | "Babel internal routing table\n" |
ca10883e DS |
1086 | "IPv6 address <network>/<length>\n") |
1087 | { | |
1088 | struct in6_addr addr; | |
1089 | char buf1[INET6_ADDRSTRLEN]; | |
1090 | char buf[INET6_ADDRSTRLEN + 8]; | |
1091 | struct route_stream *routes = NULL; | |
1092 | struct xroute_stream *xroutes = NULL; | |
1093 | struct prefix prefix; | |
1094 | int ret; | |
1095 | ||
1096 | ret = inet_pton (AF_INET6, argv[3]->arg, &addr); | |
1097 | if (ret <= 0) { | |
5c7571d4 | 1098 | vty_out (vty, "%% Malformed address\n"); |
ca10883e DS |
1099 | return CMD_WARNING; |
1100 | } | |
1101 | ||
1102 | /* Quagga has no convenient prefix constructors. */ | |
1103 | snprintf(buf, sizeof(buf), "%s/%d", | |
1104 | inet_ntop(AF_INET6, &addr, buf1, sizeof(buf1)), 128); | |
1105 | ||
1106 | ret = str2prefix(buf, &prefix); | |
1107 | if (ret == 0) { | |
5c7571d4 | 1108 | vty_out (vty, "%% Parse error -- this shouldn't happen\n"); |
ca10883e DS |
1109 | return CMD_WARNING; |
1110 | } | |
1111 | ||
1112 | routes = route_stream(0); | |
1113 | if(routes) { | |
1114 | while(1) { | |
1115 | struct babel_route *route = route_stream_next(routes); | |
1116 | if(route == NULL) | |
1117 | break; | |
1118 | show_babel_routes_sub(route, vty, &prefix); | |
1119 | } | |
1120 | route_stream_done(routes); | |
1121 | } else { | |
5b003f31 | 1122 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e | 1123 | } |
dd15627e | 1124 | xroutes = xroute_stream(); |
ca10883e DS |
1125 | if(xroutes) { |
1126 | while(1) { | |
1127 | struct xroute *xroute = xroute_stream_next(xroutes); | |
1128 | if(xroute == NULL) | |
1129 | break; | |
1130 | show_babel_xroutes_sub(xroute, vty, &prefix); | |
1131 | } | |
1132 | xroute_stream_done(xroutes); | |
1133 | } else { | |
5b003f31 | 1134 | flog_err(EC_BABEL_MEMORY, "Couldn't allocate route stream."); |
ca10883e DS |
1135 | } |
1136 | return CMD_SUCCESS; | |
1137 | } | |
1138 | ||
1139 | DEFUN (show_babel_parameters, | |
1140 | show_babel_parameters_cmd, | |
1141 | "show babel parameters", | |
1142 | SHOW_STR | |
1143 | "Babel information\n" | |
1144 | "Configuration information\n") | |
1145 | { | |
03a38493 PG |
1146 | struct babel *babel_ctx; |
1147 | ||
5c7571d4 | 1148 | vty_out (vty, " -- Babel running configuration --\n"); |
ca10883e | 1149 | show_babel_main_configuration(vty); |
ca10883e | 1150 | |
03a38493 PG |
1151 | babel_ctx = babel_lookup(); |
1152 | if (babel_ctx) { | |
1153 | vty_out (vty, " -- distribution lists --\n"); | |
1154 | config_show_distribute(vty, babel_ctx->distribute_ctx); | |
1155 | } | |
ca10883e DS |
1156 | return CMD_SUCCESS; |
1157 | } | |
1158 | ||
1159 | void | |
4d762f26 | 1160 | babel_if_init(void) |
ca10883e DS |
1161 | { |
1162 | /* initialize interface list */ | |
ce19a04a DL |
1163 | hook_register_prio(if_add, 0, babel_if_new_hook); |
1164 | hook_register_prio(if_del, 0, babel_if_delete_hook); | |
ca10883e DS |
1165 | |
1166 | babel_enable_if = vector_init (1); | |
1167 | ||
1168 | /* install interface node and commands */ | |
9da01b0b | 1169 | if_cmd_init(interface_config_write); |
ca10883e DS |
1170 | |
1171 | install_element(BABEL_NODE, &babel_network_cmd); | |
1172 | install_element(BABEL_NODE, &no_babel_network_cmd); | |
1173 | install_element(INTERFACE_NODE, &babel_split_horizon_cmd); | |
ca10883e DS |
1174 | install_element(INTERFACE_NODE, &babel_set_wired_cmd); |
1175 | install_element(INTERFACE_NODE, &babel_set_wireless_cmd); | |
1176 | install_element(INTERFACE_NODE, &babel_set_hello_interval_cmd); | |
1177 | install_element(INTERFACE_NODE, &babel_set_update_interval_cmd); | |
1178 | install_element(INTERFACE_NODE, &babel_set_rxcost_cmd); | |
1179 | install_element(INTERFACE_NODE, &babel_set_channel_cmd); | |
1180 | install_element(INTERFACE_NODE, &babel_set_rtt_decay_cmd); | |
1181 | install_element(INTERFACE_NODE, &babel_set_rtt_min_cmd); | |
1182 | install_element(INTERFACE_NODE, &babel_set_rtt_max_cmd); | |
1183 | install_element(INTERFACE_NODE, &babel_set_max_rtt_penalty_cmd); | |
1184 | install_element(INTERFACE_NODE, &babel_set_enable_timestamps_cmd); | |
ca10883e DS |
1185 | |
1186 | /* "show babel ..." commands */ | |
1187 | install_element(VIEW_NODE, &show_babel_interface_cmd); | |
1188 | install_element(VIEW_NODE, &show_babel_neighbour_cmd); | |
1189 | install_element(VIEW_NODE, &show_babel_route_cmd); | |
1190 | install_element(VIEW_NODE, &show_babel_route_prefix_cmd); | |
1191 | install_element(VIEW_NODE, &show_babel_route_addr_cmd); | |
1192 | install_element(VIEW_NODE, &show_babel_route_addr6_cmd); | |
1193 | install_element(VIEW_NODE, &show_babel_parameters_cmd); | |
1194 | } | |
1195 | ||
1196 | /* hooks: functions called respectively when struct interface is | |
1197 | created or deleted. */ | |
1198 | static int | |
1199 | babel_if_new_hook (struct interface *ifp) | |
1200 | { | |
1201 | ifp->info = babel_interface_allocate(); | |
1202 | return 0; | |
1203 | } | |
1204 | ||
1205 | static int | |
1206 | babel_if_delete_hook (struct interface *ifp) | |
1207 | { | |
1208 | babel_interface_free(ifp->info); | |
1209 | ifp->info = NULL; | |
1210 | return 0; | |
1211 | } | |
1212 | ||
1213 | /* Output an "interface" section for each of the known interfaces with | |
1214 | babeld-specific statement lines where appropriate. */ | |
1215 | static int | |
1216 | interface_config_write (struct vty *vty) | |
1217 | { | |
f4e14fdb | 1218 | struct vrf *vrf = vrf_lookup_by_id(VRF_DEFAULT); |
ca10883e DS |
1219 | struct interface *ifp; |
1220 | int write = 0; | |
1221 | ||
451fda4f | 1222 | FOR_ALL_INTERFACES (vrf, ifp) { |
788a036f | 1223 | if_vty_config_start(vty, ifp); |
ca10883e | 1224 | if (ifp->desc) |
5c7571d4 | 1225 | vty_out (vty, " description %s\n",ifp->desc); |
ca10883e DS |
1226 | babel_interface_nfo *babel_ifp = babel_get_if_nfo (ifp); |
1227 | /* wireless is the default*/ | |
1228 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_WIRED)) | |
1229 | { | |
5c7571d4 | 1230 | vty_out (vty, " babel wired\n"); |
ca10883e DS |
1231 | write++; |
1232 | } | |
1233 | if (babel_ifp->hello_interval != BABEL_DEFAULT_HELLO_INTERVAL) | |
1234 | { | |
5c7571d4 | 1235 | vty_out (vty, " babel hello-interval %u\n", |
96ade3ed | 1236 | babel_ifp->hello_interval); |
ca10883e DS |
1237 | write++; |
1238 | } | |
1239 | if (babel_ifp->update_interval != BABEL_DEFAULT_UPDATE_INTERVAL) | |
1240 | { | |
5c7571d4 | 1241 | vty_out (vty, " babel update-interval %u\n", |
96ade3ed | 1242 | babel_ifp->update_interval); |
ca10883e DS |
1243 | write++; |
1244 | } | |
aa3ba071 AMR |
1245 | if (CHECK_FLAG(babel_ifp->flags, BABEL_IF_TIMESTAMPS)) { |
1246 | vty_out(vty, " babel enable-timestamps\n"); | |
1247 | write++; | |
1248 | } | |
1249 | if (babel_ifp->max_rtt_penalty != BABEL_DEFAULT_MAX_RTT_PENALTY) { | |
1250 | vty_out(vty, " babel max-rtt-penalty %u\n", | |
1251 | babel_ifp->max_rtt_penalty); | |
1252 | write++; | |
1253 | } | |
1254 | if (babel_ifp->rtt_decay != BABEL_DEFAULT_RTT_DECAY) { | |
1255 | vty_out(vty, " babel rtt-decay %u\n", babel_ifp->rtt_decay); | |
1256 | write++; | |
1257 | } | |
1258 | if (babel_ifp->rtt_min != BABEL_DEFAULT_RTT_MIN) { | |
1259 | vty_out(vty, " babel rtt-min %u\n", babel_ifp->rtt_min / 1000); | |
1260 | write++; | |
1261 | } | |
1262 | if (babel_ifp->rtt_max != BABEL_DEFAULT_RTT_MAX) { | |
1263 | vty_out(vty, " babel rtt-max %u\n", babel_ifp->rtt_max / 1000); | |
1264 | write++; | |
1265 | } | |
1266 | /* Some parameters have different defaults for wired/wireless. */ | |
1267 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_WIRED)) { | |
ca10883e | 1268 | if (!CHECK_FLAG (babel_ifp->flags, BABEL_IF_SPLIT_HORIZON)) { |
5c7571d4 | 1269 | vty_out (vty, " no babel split-horizon\n"); |
ca10883e DS |
1270 | write++; |
1271 | } | |
1272 | if (babel_ifp->cost != BABEL_DEFAULT_RXCOST_WIRED) { | |
5c7571d4 | 1273 | vty_out (vty, " babel rxcost %u\n", babel_ifp->cost); |
ca10883e DS |
1274 | write++; |
1275 | } | |
1276 | if (babel_ifp->channel == BABEL_IF_CHANNEL_INTERFERING) { | |
5c7571d4 | 1277 | vty_out (vty, " babel channel interfering\n"); |
ca10883e DS |
1278 | write++; |
1279 | } else if(babel_ifp->channel != BABEL_IF_CHANNEL_NONINTERFERING) { | |
5c7571d4 | 1280 | vty_out (vty, " babel channel %d\n",babel_ifp->channel); |
ca10883e DS |
1281 | write++; |
1282 | } | |
1283 | } else { | |
1284 | if (CHECK_FLAG (babel_ifp->flags, BABEL_IF_SPLIT_HORIZON)) { | |
5c7571d4 | 1285 | vty_out (vty, " babel split-horizon\n"); |
ca10883e DS |
1286 | write++; |
1287 | } | |
1288 | if (babel_ifp->cost != BABEL_DEFAULT_RXCOST_WIRELESS) { | |
5c7571d4 | 1289 | vty_out (vty, " babel rxcost %u\n", babel_ifp->cost); |
ca10883e DS |
1290 | write++; |
1291 | } | |
1292 | if (babel_ifp->channel == BABEL_IF_CHANNEL_NONINTERFERING) { | |
5c7571d4 | 1293 | vty_out (vty, " babel channel noninterfering\n"); |
ca10883e DS |
1294 | write++; |
1295 | } else if(babel_ifp->channel != BABEL_IF_CHANNEL_INTERFERING) { | |
5c7571d4 | 1296 | vty_out (vty, " babel channel %d\n",babel_ifp->channel); |
ca10883e DS |
1297 | write++; |
1298 | } | |
1299 | } | |
788a036f | 1300 | if_vty_config_end(vty); |
ca10883e DS |
1301 | write++; |
1302 | } | |
1303 | return write; | |
1304 | } | |
1305 | ||
1306 | /* Output a "network" statement line for each of the enabled interfaces. */ | |
1307 | int | |
1308 | babel_enable_if_config_write (struct vty * vty) | |
1309 | { | |
1310 | unsigned int i, lines = 0; | |
1311 | char *str; | |
1312 | ||
1313 | for (i = 0; i < vector_active (babel_enable_if); i++) | |
1314 | if ((str = vector_slot (babel_enable_if, i)) != NULL) | |
1315 | { | |
5c7571d4 | 1316 | vty_out (vty, " network %s\n", str); |
ca10883e DS |
1317 | lines++; |
1318 | } | |
1319 | return lines; | |
1320 | } | |
1321 | ||
1322 | /* functions to allocate or free memory for a babel_interface_nfo, filling | |
1323 | needed fields */ | |
1324 | static babel_interface_nfo * | |
1325 | babel_interface_allocate (void) | |
1326 | { | |
1327 | babel_interface_nfo *babel_ifp; | |
aa406bbc | 1328 | babel_ifp = XCALLOC(MTYPE_BABEL_IF, sizeof(babel_interface_nfo)); |
ca10883e DS |
1329 | /* All flags are unset */ |
1330 | babel_ifp->bucket_time = babel_now.tv_sec; | |
1331 | babel_ifp->bucket = BUCKET_TOKENS_MAX; | |
5920b3eb | 1332 | babel_ifp->hello_seqno = (frr_weak_random() & 0xFFFF); |
aa3ba071 AMR |
1333 | babel_ifp->rtt_decay = BABEL_DEFAULT_RTT_DECAY; |
1334 | babel_ifp->rtt_min = BABEL_DEFAULT_RTT_MIN; | |
1335 | babel_ifp->rtt_max = BABEL_DEFAULT_RTT_MAX; | |
1336 | babel_ifp->max_rtt_penalty = BABEL_DEFAULT_MAX_RTT_PENALTY; | |
ca10883e DS |
1337 | babel_ifp->hello_interval = BABEL_DEFAULT_HELLO_INTERVAL; |
1338 | babel_ifp->update_interval = BABEL_DEFAULT_UPDATE_INTERVAL; | |
1339 | babel_ifp->channel = BABEL_IF_CHANNEL_INTERFERING; | |
1340 | babel_set_wired_internal(babel_ifp, 0); | |
1341 | ||
1342 | return babel_ifp; | |
1343 | } | |
1344 | ||
1345 | static void | |
1346 | babel_interface_free (babel_interface_nfo *babel_ifp) | |
1347 | { | |
1348 | XFREE(MTYPE_BABEL_IF, babel_ifp); | |
1349 | } |