1
2
3
4
5
6
7#include "bat_v.h"
8#include "main.h"
9
10#include <linux/atomic.h>
11#include <linux/cache.h>
12#include <linux/errno.h>
13#include <linux/if_ether.h>
14#include <linux/init.h>
15#include <linux/jiffies.h>
16#include <linux/kref.h>
17#include <linux/list.h>
18#include <linux/minmax.h>
19#include <linux/netdevice.h>
20#include <linux/netlink.h>
21#include <linux/rculist.h>
22#include <linux/rcupdate.h>
23#include <linux/skbuff.h>
24#include <linux/spinlock.h>
25#include <linux/stddef.h>
26#include <linux/types.h>
27#include <linux/workqueue.h>
28#include <net/genetlink.h>
29#include <net/netlink.h>
30#include <uapi/linux/batadv_packet.h>
31#include <uapi/linux/batman_adv.h>
32
33#include "bat_algo.h"
34#include "bat_v_elp.h"
35#include "bat_v_ogm.h"
36#include "gateway_client.h"
37#include "gateway_common.h"
38#include "hard-interface.h"
39#include "hash.h"
40#include "log.h"
41#include "netlink.h"
42#include "originator.h"
43
44static void batadv_v_iface_activate(struct batadv_hard_iface *hard_iface)
45{
46 struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
47 struct batadv_hard_iface *primary_if;
48
49 primary_if = batadv_primary_if_get_selected(bat_priv);
50
51 if (primary_if) {
52 batadv_v_elp_iface_activate(primary_if, hard_iface);
53 batadv_hardif_put(primary_if);
54 }
55
56
57
58
59
60 if (hard_iface->if_status == BATADV_IF_TO_BE_ACTIVATED)
61 hard_iface->if_status = BATADV_IF_ACTIVE;
62}
63
64static int batadv_v_iface_enable(struct batadv_hard_iface *hard_iface)
65{
66 int ret;
67
68 ret = batadv_v_elp_iface_enable(hard_iface);
69 if (ret < 0)
70 return ret;
71
72 ret = batadv_v_ogm_iface_enable(hard_iface);
73 if (ret < 0)
74 batadv_v_elp_iface_disable(hard_iface);
75
76 return ret;
77}
78
79static void batadv_v_iface_disable(struct batadv_hard_iface *hard_iface)
80{
81 batadv_v_ogm_iface_disable(hard_iface);
82 batadv_v_elp_iface_disable(hard_iface);
83}
84
85static void batadv_v_primary_iface_set(struct batadv_hard_iface *hard_iface)
86{
87 batadv_v_elp_primary_iface_set(hard_iface);
88 batadv_v_ogm_primary_iface_set(hard_iface);
89}
90
91
92
93
94
95
96
97
98static void batadv_v_iface_update_mac(struct batadv_hard_iface *hard_iface)
99{
100 struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
101 struct batadv_hard_iface *primary_if;
102
103 primary_if = batadv_primary_if_get_selected(bat_priv);
104 if (primary_if != hard_iface)
105 goto out;
106
107 batadv_v_primary_iface_set(hard_iface);
108out:
109 if (primary_if)
110 batadv_hardif_put(primary_if);
111}
112
113static void
114batadv_v_hardif_neigh_init(struct batadv_hardif_neigh_node *hardif_neigh)
115{
116 ewma_throughput_init(&hardif_neigh->bat_v.throughput);
117 INIT_WORK(&hardif_neigh->bat_v.metric_work,
118 batadv_v_elp_throughput_metric_update);
119}
120
121
122
123
124
125
126
127
128
129
130static int
131batadv_v_neigh_dump_neigh(struct sk_buff *msg, u32 portid, u32 seq,
132 struct batadv_hardif_neigh_node *hardif_neigh)
133{
134 void *hdr;
135 unsigned int last_seen_msecs;
136 u32 throughput;
137
138 last_seen_msecs = jiffies_to_msecs(jiffies - hardif_neigh->last_seen);
139 throughput = ewma_throughput_read(&hardif_neigh->bat_v.throughput);
140 throughput = throughput * 100;
141
142 hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, NLM_F_MULTI,
143 BATADV_CMD_GET_NEIGHBORS);
144 if (!hdr)
145 return -ENOBUFS;
146
147 if (nla_put(msg, BATADV_ATTR_NEIGH_ADDRESS, ETH_ALEN,
148 hardif_neigh->addr) ||
149 nla_put_u32(msg, BATADV_ATTR_HARD_IFINDEX,
150 hardif_neigh->if_incoming->net_dev->ifindex) ||
151 nla_put_u32(msg, BATADV_ATTR_LAST_SEEN_MSECS,
152 last_seen_msecs) ||
153 nla_put_u32(msg, BATADV_ATTR_THROUGHPUT, throughput))
154 goto nla_put_failure;
155
156 genlmsg_end(msg, hdr);
157 return 0;
158
159 nla_put_failure:
160 genlmsg_cancel(msg, hdr);
161 return -EMSGSIZE;
162}
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178static int
179batadv_v_neigh_dump_hardif(struct sk_buff *msg, u32 portid, u32 seq,
180 struct batadv_priv *bat_priv,
181 struct batadv_hard_iface *hard_iface,
182 int *idx_s)
183{
184 struct batadv_hardif_neigh_node *hardif_neigh;
185 int idx = 0;
186
187 hlist_for_each_entry_rcu(hardif_neigh,
188 &hard_iface->neigh_list, list) {
189 if (idx++ < *idx_s)
190 continue;
191
192 if (batadv_v_neigh_dump_neigh(msg, portid, seq, hardif_neigh)) {
193 *idx_s = idx - 1;
194 return -EMSGSIZE;
195 }
196 }
197
198 *idx_s = 0;
199 return 0;
200}
201
202
203
204
205
206
207
208
209
210static void
211batadv_v_neigh_dump(struct sk_buff *msg, struct netlink_callback *cb,
212 struct batadv_priv *bat_priv,
213 struct batadv_hard_iface *single_hardif)
214{
215 struct batadv_hard_iface *hard_iface;
216 int i_hardif = 0;
217 int i_hardif_s = cb->args[0];
218 int idx = cb->args[1];
219 int portid = NETLINK_CB(cb->skb).portid;
220
221 rcu_read_lock();
222 if (single_hardif) {
223 if (i_hardif_s == 0) {
224 if (batadv_v_neigh_dump_hardif(msg, portid,
225 cb->nlh->nlmsg_seq,
226 bat_priv, single_hardif,
227 &idx) == 0)
228 i_hardif++;
229 }
230 } else {
231 list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
232 if (hard_iface->soft_iface != bat_priv->soft_iface)
233 continue;
234
235 if (i_hardif++ < i_hardif_s)
236 continue;
237
238 if (batadv_v_neigh_dump_hardif(msg, portid,
239 cb->nlh->nlmsg_seq,
240 bat_priv, hard_iface,
241 &idx)) {
242 i_hardif--;
243 break;
244 }
245 }
246 }
247 rcu_read_unlock();
248
249 cb->args[0] = i_hardif;
250 cb->args[1] = idx;
251}
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266static int
267batadv_v_orig_dump_subentry(struct sk_buff *msg, u32 portid, u32 seq,
268 struct batadv_priv *bat_priv,
269 struct batadv_hard_iface *if_outgoing,
270 struct batadv_orig_node *orig_node,
271 struct batadv_neigh_node *neigh_node,
272 bool best)
273{
274 struct batadv_neigh_ifinfo *n_ifinfo;
275 unsigned int last_seen_msecs;
276 u32 throughput;
277 void *hdr;
278
279 n_ifinfo = batadv_neigh_ifinfo_get(neigh_node, if_outgoing);
280 if (!n_ifinfo)
281 return 0;
282
283 throughput = n_ifinfo->bat_v.throughput * 100;
284
285 batadv_neigh_ifinfo_put(n_ifinfo);
286
287 last_seen_msecs = jiffies_to_msecs(jiffies - orig_node->last_seen);
288
289 if (if_outgoing != BATADV_IF_DEFAULT &&
290 if_outgoing != neigh_node->if_incoming)
291 return 0;
292
293 hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, NLM_F_MULTI,
294 BATADV_CMD_GET_ORIGINATORS);
295 if (!hdr)
296 return -ENOBUFS;
297
298 if (nla_put(msg, BATADV_ATTR_ORIG_ADDRESS, ETH_ALEN, orig_node->orig) ||
299 nla_put(msg, BATADV_ATTR_NEIGH_ADDRESS, ETH_ALEN,
300 neigh_node->addr) ||
301 nla_put_u32(msg, BATADV_ATTR_HARD_IFINDEX,
302 neigh_node->if_incoming->net_dev->ifindex) ||
303 nla_put_u32(msg, BATADV_ATTR_THROUGHPUT, throughput) ||
304 nla_put_u32(msg, BATADV_ATTR_LAST_SEEN_MSECS,
305 last_seen_msecs))
306 goto nla_put_failure;
307
308 if (best && nla_put_flag(msg, BATADV_ATTR_FLAG_BEST))
309 goto nla_put_failure;
310
311 genlmsg_end(msg, hdr);
312 return 0;
313
314 nla_put_failure:
315 genlmsg_cancel(msg, hdr);
316 return -EMSGSIZE;
317}
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333static int
334batadv_v_orig_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
335 struct batadv_priv *bat_priv,
336 struct batadv_hard_iface *if_outgoing,
337 struct batadv_orig_node *orig_node, int *sub_s)
338{
339 struct batadv_neigh_node *neigh_node_best;
340 struct batadv_neigh_node *neigh_node;
341 int sub = 0;
342 bool best;
343
344 neigh_node_best = batadv_orig_router_get(orig_node, if_outgoing);
345 if (!neigh_node_best)
346 goto out;
347
348 hlist_for_each_entry_rcu(neigh_node, &orig_node->neigh_list, list) {
349 if (sub++ < *sub_s)
350 continue;
351
352 best = (neigh_node == neigh_node_best);
353
354 if (batadv_v_orig_dump_subentry(msg, portid, seq, bat_priv,
355 if_outgoing, orig_node,
356 neigh_node, best)) {
357 batadv_neigh_node_put(neigh_node_best);
358
359 *sub_s = sub - 1;
360 return -EMSGSIZE;
361 }
362 }
363
364 out:
365 if (neigh_node_best)
366 batadv_neigh_node_put(neigh_node_best);
367
368 *sub_s = 0;
369 return 0;
370}
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385static int
386batadv_v_orig_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
387 struct batadv_priv *bat_priv,
388 struct batadv_hard_iface *if_outgoing,
389 struct hlist_head *head, int *idx_s, int *sub)
390{
391 struct batadv_orig_node *orig_node;
392 int idx = 0;
393
394 rcu_read_lock();
395 hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
396 if (idx++ < *idx_s)
397 continue;
398
399 if (batadv_v_orig_dump_entry(msg, portid, seq, bat_priv,
400 if_outgoing, orig_node, sub)) {
401 rcu_read_unlock();
402 *idx_s = idx - 1;
403 return -EMSGSIZE;
404 }
405 }
406 rcu_read_unlock();
407
408 *idx_s = 0;
409 *sub = 0;
410 return 0;
411}
412
413
414
415
416
417
418
419
420static void
421batadv_v_orig_dump(struct sk_buff *msg, struct netlink_callback *cb,
422 struct batadv_priv *bat_priv,
423 struct batadv_hard_iface *if_outgoing)
424{
425 struct batadv_hashtable *hash = bat_priv->orig_hash;
426 struct hlist_head *head;
427 int bucket = cb->args[0];
428 int idx = cb->args[1];
429 int sub = cb->args[2];
430 int portid = NETLINK_CB(cb->skb).portid;
431
432 while (bucket < hash->size) {
433 head = &hash->table[bucket];
434
435 if (batadv_v_orig_dump_bucket(msg, portid,
436 cb->nlh->nlmsg_seq,
437 bat_priv, if_outgoing, head, &idx,
438 &sub))
439 break;
440
441 bucket++;
442 }
443
444 cb->args[0] = bucket;
445 cb->args[1] = idx;
446 cb->args[2] = sub;
447}
448
449static int batadv_v_neigh_cmp(struct batadv_neigh_node *neigh1,
450 struct batadv_hard_iface *if_outgoing1,
451 struct batadv_neigh_node *neigh2,
452 struct batadv_hard_iface *if_outgoing2)
453{
454 struct batadv_neigh_ifinfo *ifinfo1, *ifinfo2;
455 int ret = 0;
456
457 ifinfo1 = batadv_neigh_ifinfo_get(neigh1, if_outgoing1);
458 if (!ifinfo1)
459 goto err_ifinfo1;
460
461 ifinfo2 = batadv_neigh_ifinfo_get(neigh2, if_outgoing2);
462 if (!ifinfo2)
463 goto err_ifinfo2;
464
465 ret = ifinfo1->bat_v.throughput - ifinfo2->bat_v.throughput;
466
467 batadv_neigh_ifinfo_put(ifinfo2);
468err_ifinfo2:
469 batadv_neigh_ifinfo_put(ifinfo1);
470err_ifinfo1:
471 return ret;
472}
473
474static bool batadv_v_neigh_is_sob(struct batadv_neigh_node *neigh1,
475 struct batadv_hard_iface *if_outgoing1,
476 struct batadv_neigh_node *neigh2,
477 struct batadv_hard_iface *if_outgoing2)
478{
479 struct batadv_neigh_ifinfo *ifinfo1, *ifinfo2;
480 u32 threshold;
481 bool ret = false;
482
483 ifinfo1 = batadv_neigh_ifinfo_get(neigh1, if_outgoing1);
484 if (!ifinfo1)
485 goto err_ifinfo1;
486
487 ifinfo2 = batadv_neigh_ifinfo_get(neigh2, if_outgoing2);
488 if (!ifinfo2)
489 goto err_ifinfo2;
490
491 threshold = ifinfo1->bat_v.throughput / 4;
492 threshold = ifinfo1->bat_v.throughput - threshold;
493
494 ret = ifinfo2->bat_v.throughput > threshold;
495
496 batadv_neigh_ifinfo_put(ifinfo2);
497err_ifinfo2:
498 batadv_neigh_ifinfo_put(ifinfo1);
499err_ifinfo1:
500 return ret;
501}
502
503
504
505
506
507static void batadv_v_init_sel_class(struct batadv_priv *bat_priv)
508{
509
510 atomic_set(&bat_priv->gw.sel_class, 50);
511}
512
513static ssize_t batadv_v_store_sel_class(struct batadv_priv *bat_priv,
514 char *buff, size_t count)
515{
516 u32 old_class, class;
517
518 if (!batadv_parse_throughput(bat_priv->soft_iface, buff,
519 "B.A.T.M.A.N. V GW selection class",
520 &class))
521 return -EINVAL;
522
523 old_class = atomic_read(&bat_priv->gw.sel_class);
524 atomic_set(&bat_priv->gw.sel_class, class);
525
526 if (old_class != class)
527 batadv_gw_reselect(bat_priv);
528
529 return count;
530}
531
532
533
534
535
536
537
538
539
540
541static int batadv_v_gw_throughput_get(struct batadv_gw_node *gw_node, u32 *bw)
542{
543 struct batadv_neigh_ifinfo *router_ifinfo = NULL;
544 struct batadv_orig_node *orig_node;
545 struct batadv_neigh_node *router;
546 int ret = -1;
547
548 orig_node = gw_node->orig_node;
549 router = batadv_orig_router_get(orig_node, BATADV_IF_DEFAULT);
550 if (!router)
551 goto out;
552
553 router_ifinfo = batadv_neigh_ifinfo_get(router, BATADV_IF_DEFAULT);
554 if (!router_ifinfo)
555 goto out;
556
557
558
559
560
561
562 *bw = router_ifinfo->bat_v.throughput;
563 *bw = min_t(u32, *bw, gw_node->bandwidth_down);
564
565 ret = 0;
566out:
567 if (router)
568 batadv_neigh_node_put(router);
569 if (router_ifinfo)
570 batadv_neigh_ifinfo_put(router_ifinfo);
571
572 return ret;
573}
574
575
576
577
578
579
580
581static struct batadv_gw_node *
582batadv_v_gw_get_best_gw_node(struct batadv_priv *bat_priv)
583{
584 struct batadv_gw_node *gw_node, *curr_gw = NULL;
585 u32 max_bw = 0, bw;
586
587 rcu_read_lock();
588 hlist_for_each_entry_rcu(gw_node, &bat_priv->gw.gateway_list, list) {
589 if (!kref_get_unless_zero(&gw_node->refcount))
590 continue;
591
592 if (batadv_v_gw_throughput_get(gw_node, &bw) < 0)
593 goto next;
594
595 if (curr_gw && bw <= max_bw)
596 goto next;
597
598 if (curr_gw)
599 batadv_gw_node_put(curr_gw);
600
601 curr_gw = gw_node;
602 kref_get(&curr_gw->refcount);
603 max_bw = bw;
604
605next:
606 batadv_gw_node_put(gw_node);
607 }
608 rcu_read_unlock();
609
610 return curr_gw;
611}
612
613
614
615
616
617
618
619
620
621static bool batadv_v_gw_is_eligible(struct batadv_priv *bat_priv,
622 struct batadv_orig_node *curr_gw_orig,
623 struct batadv_orig_node *orig_node)
624{
625 struct batadv_gw_node *curr_gw, *orig_gw = NULL;
626 u32 gw_throughput, orig_throughput, threshold;
627 bool ret = false;
628
629 threshold = atomic_read(&bat_priv->gw.sel_class);
630
631 curr_gw = batadv_gw_node_get(bat_priv, curr_gw_orig);
632 if (!curr_gw) {
633 ret = true;
634 goto out;
635 }
636
637 if (batadv_v_gw_throughput_get(curr_gw, &gw_throughput) < 0) {
638 ret = true;
639 goto out;
640 }
641
642 orig_gw = batadv_gw_node_get(bat_priv, orig_node);
643 if (!orig_gw)
644 goto out;
645
646 if (batadv_v_gw_throughput_get(orig_gw, &orig_throughput) < 0)
647 goto out;
648
649 if (orig_throughput < gw_throughput)
650 goto out;
651
652 if ((orig_throughput - gw_throughput) < threshold)
653 goto out;
654
655 batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
656 "Restarting gateway selection: better gateway found (throughput curr: %u, throughput new: %u)\n",
657 gw_throughput, orig_throughput);
658
659 ret = true;
660out:
661 if (curr_gw)
662 batadv_gw_node_put(curr_gw);
663 if (orig_gw)
664 batadv_gw_node_put(orig_gw);
665
666 return ret;
667}
668
669
670
671
672
673
674
675
676
677
678
679static int batadv_v_gw_dump_entry(struct sk_buff *msg, u32 portid,
680 struct netlink_callback *cb,
681 struct batadv_priv *bat_priv,
682 struct batadv_gw_node *gw_node)
683{
684 struct batadv_neigh_ifinfo *router_ifinfo = NULL;
685 struct batadv_neigh_node *router;
686 struct batadv_gw_node *curr_gw = NULL;
687 int ret = 0;
688 void *hdr;
689
690 router = batadv_orig_router_get(gw_node->orig_node, BATADV_IF_DEFAULT);
691 if (!router)
692 goto out;
693
694 router_ifinfo = batadv_neigh_ifinfo_get(router, BATADV_IF_DEFAULT);
695 if (!router_ifinfo)
696 goto out;
697
698 curr_gw = batadv_gw_get_selected_gw_node(bat_priv);
699
700 hdr = genlmsg_put(msg, portid, cb->nlh->nlmsg_seq,
701 &batadv_netlink_family, NLM_F_MULTI,
702 BATADV_CMD_GET_GATEWAYS);
703 if (!hdr) {
704 ret = -ENOBUFS;
705 goto out;
706 }
707
708 genl_dump_check_consistent(cb, hdr);
709
710 ret = -EMSGSIZE;
711
712 if (curr_gw == gw_node) {
713 if (nla_put_flag(msg, BATADV_ATTR_FLAG_BEST)) {
714 genlmsg_cancel(msg, hdr);
715 goto out;
716 }
717 }
718
719 if (nla_put(msg, BATADV_ATTR_ORIG_ADDRESS, ETH_ALEN,
720 gw_node->orig_node->orig)) {
721 genlmsg_cancel(msg, hdr);
722 goto out;
723 }
724
725 if (nla_put_u32(msg, BATADV_ATTR_THROUGHPUT,
726 router_ifinfo->bat_v.throughput)) {
727 genlmsg_cancel(msg, hdr);
728 goto out;
729 }
730
731 if (nla_put(msg, BATADV_ATTR_ROUTER, ETH_ALEN, router->addr)) {
732 genlmsg_cancel(msg, hdr);
733 goto out;
734 }
735
736 if (nla_put_string(msg, BATADV_ATTR_HARD_IFNAME,
737 router->if_incoming->net_dev->name)) {
738 genlmsg_cancel(msg, hdr);
739 goto out;
740 }
741
742 if (nla_put_u32(msg, BATADV_ATTR_BANDWIDTH_DOWN,
743 gw_node->bandwidth_down)) {
744 genlmsg_cancel(msg, hdr);
745 goto out;
746 }
747
748 if (nla_put_u32(msg, BATADV_ATTR_BANDWIDTH_UP, gw_node->bandwidth_up)) {
749 genlmsg_cancel(msg, hdr);
750 goto out;
751 }
752
753 genlmsg_end(msg, hdr);
754 ret = 0;
755
756out:
757 if (curr_gw)
758 batadv_gw_node_put(curr_gw);
759 if (router_ifinfo)
760 batadv_neigh_ifinfo_put(router_ifinfo);
761 if (router)
762 batadv_neigh_node_put(router);
763 return ret;
764}
765
766
767
768
769
770
771
772static void batadv_v_gw_dump(struct sk_buff *msg, struct netlink_callback *cb,
773 struct batadv_priv *bat_priv)
774{
775 int portid = NETLINK_CB(cb->skb).portid;
776 struct batadv_gw_node *gw_node;
777 int idx_skip = cb->args[0];
778 int idx = 0;
779
780 spin_lock_bh(&bat_priv->gw.list_lock);
781 cb->seq = bat_priv->gw.generation << 1 | 1;
782
783 hlist_for_each_entry(gw_node, &bat_priv->gw.gateway_list, list) {
784 if (idx++ < idx_skip)
785 continue;
786
787 if (batadv_v_gw_dump_entry(msg, portid, cb, bat_priv,
788 gw_node)) {
789 idx_skip = idx - 1;
790 goto unlock;
791 }
792 }
793
794 idx_skip = idx;
795unlock:
796 spin_unlock_bh(&bat_priv->gw.list_lock);
797
798 cb->args[0] = idx_skip;
799}
800
801static struct batadv_algo_ops batadv_batman_v __read_mostly = {
802 .name = "BATMAN_V",
803 .iface = {
804 .activate = batadv_v_iface_activate,
805 .enable = batadv_v_iface_enable,
806 .disable = batadv_v_iface_disable,
807 .update_mac = batadv_v_iface_update_mac,
808 .primary_set = batadv_v_primary_iface_set,
809 },
810 .neigh = {
811 .hardif_init = batadv_v_hardif_neigh_init,
812 .cmp = batadv_v_neigh_cmp,
813 .is_similar_or_better = batadv_v_neigh_is_sob,
814 .dump = batadv_v_neigh_dump,
815 },
816 .orig = {
817 .dump = batadv_v_orig_dump,
818 },
819 .gw = {
820 .init_sel_class = batadv_v_init_sel_class,
821 .store_sel_class = batadv_v_store_sel_class,
822 .get_best_gw_node = batadv_v_gw_get_best_gw_node,
823 .is_eligible = batadv_v_gw_is_eligible,
824 .dump = batadv_v_gw_dump,
825 },
826};
827
828
829
830
831
832
833void batadv_v_hardif_init(struct batadv_hard_iface *hard_iface)
834{
835
836
837
838 atomic_set(&hard_iface->bat_v.throughput_override, 0);
839 atomic_set(&hard_iface->bat_v.elp_interval, 500);
840
841 hard_iface->bat_v.aggr_len = 0;
842 skb_queue_head_init(&hard_iface->bat_v.aggr_list);
843 INIT_DELAYED_WORK(&hard_iface->bat_v.aggr_wq,
844 batadv_v_ogm_aggr_work);
845}
846
847
848
849
850
851
852
853
854int batadv_v_mesh_init(struct batadv_priv *bat_priv)
855{
856 int ret = 0;
857
858 ret = batadv_v_ogm_init(bat_priv);
859 if (ret < 0)
860 return ret;
861
862 return 0;
863}
864
865
866
867
868
869void batadv_v_mesh_free(struct batadv_priv *bat_priv)
870{
871 batadv_v_ogm_free(bat_priv);
872}
873
874
875
876
877
878
879
880
881
882int __init batadv_v_init(void)
883{
884 int ret;
885
886
887 ret = batadv_recv_handler_register(BATADV_ELP,
888 batadv_v_elp_packet_recv);
889 if (ret < 0)
890 return ret;
891
892 ret = batadv_recv_handler_register(BATADV_OGM2,
893 batadv_v_ogm_packet_recv);
894 if (ret < 0)
895 goto elp_unregister;
896
897 ret = batadv_algo_register(&batadv_batman_v);
898 if (ret < 0)
899 goto ogm_unregister;
900
901 return ret;
902
903ogm_unregister:
904 batadv_recv_handler_unregister(BATADV_OGM2);
905
906elp_unregister:
907 batadv_recv_handler_unregister(BATADV_ELP);
908
909 return ret;
910}
911