projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
rtnetlink: put "BOND" into nl attribute names which are related to bonding
[deliverable/linux.git] / net / core / rtnetlink.c
CommitLineData
1da177e4
LT		 1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Routing netlink socket interface: protocol independent part.
7 *
8 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
14 *
15 * Fixes:
16 * Vitaly E. Lavrov RTA_OK arithmetics was wrong.
17 */
18
1da177e4
LT		 19#include <linux/errno.h>
20#include <linux/module.h>
21#include <linux/types.h>
22#include <linux/socket.h>
23#include <linux/kernel.h>
1da177e4
LT		 24#include <linux/timer.h>
25#include <linux/string.h>
26#include <linux/sockios.h>
27#include <linux/net.h>
28#include <linux/fcntl.h>
29#include <linux/mm.h>
30#include <linux/slab.h>
31#include <linux/interrupt.h>
32#include <linux/capability.h>
33#include <linux/skbuff.h>
34#include <linux/init.h>
35#include <linux/security.h>
6756ae4b 36#include <linux/mutex.h>
1823730f 37#include <linux/if_addr.h>
77162022 38#include <linux/if_bridge.h>
ebc08a6f 39#include <linux/pci.h>
77162022 40#include <linux/etherdevice.h>
1da177e4
LT		 41
42#include <asm/uaccess.h>
1da177e4
LT		 43
44#include <linux/inet.h>
45#include <linux/netdevice.h>
46#include <net/ip.h>
47#include <net/protocol.h>
48#include <net/arp.h>
49#include <net/route.h>
50#include <net/udp.h>
51#include <net/sock.h>
52#include <net/pkt_sched.h>
14c0b97d 53#include <net/fib_rules.h>
e2849863 54#include <net/rtnetlink.h>
30ffee84 55#include <net/net_namespace.h>
1da177e4 56
e0d087af 57struct rtnl_link {
e2849863
TG		 58 rtnl_doit_func doit;
59 rtnl_dumpit_func dumpit;
c7ac8679 60 rtnl_calcit_func calcit;
e2849863
TG		 61};
62
6756ae4b 63static DEFINE_MUTEX(rtnl_mutex);
1da177e4
LT		 64
65void rtnl_lock(void)
66{
6756ae4b 67 mutex_lock(&rtnl_mutex);
1da177e4 68}
e0d087af 69EXPORT_SYMBOL(rtnl_lock);
1da177e4 70
6756ae4b 71void __rtnl_unlock(void)
1da177e4 72{
6756ae4b 73 mutex_unlock(&rtnl_mutex);
1da177e4 74}
6756ae4b 75
1da177e4
LT		 76void rtnl_unlock(void)
77{
58ec3b4d 78 /* This fellow will unlock it for us. */
1da177e4
LT		 79 netdev_run_todo();
80}
e0d087af 81EXPORT_SYMBOL(rtnl_unlock);
1da177e4 82
6756ae4b
SH		 83int rtnl_trylock(void)
84{
85 return mutex_trylock(&rtnl_mutex);
86}
e0d087af 87EXPORT_SYMBOL(rtnl_trylock);
6756ae4b 88
c9c1014b
PM		 89int rtnl_is_locked(void)
90{
91 return mutex_is_locked(&rtnl_mutex);
92}
e0d087af 93EXPORT_SYMBOL(rtnl_is_locked);
c9c1014b 94
a898def2
PM		 95#ifdef CONFIG_PROVE_LOCKING
96int lockdep_rtnl_is_held(void)
97{
98 return lockdep_is_held(&rtnl_mutex);
99}
100EXPORT_SYMBOL(lockdep_rtnl_is_held);
101#endif /* #ifdef CONFIG_PROVE_LOCKING */
102
25239cee 103static struct rtnl_link *rtnl_msg_handlers[RTNL_FAMILY_MAX + 1];
e2849863
TG		 104
105static inline int rtm_msgindex(int msgtype)
106{
107 int msgindex = msgtype - RTM_BASE;
108
109 /*
110 * msgindex < 0 implies someone tried to register a netlink
111 * control code. msgindex >= RTM_NR_MSGTYPES may indicate that
112 * the message type has not been added to linux/rtnetlink.h
113 */
114 BUG_ON(msgindex < 0 || msgindex >= RTM_NR_MSGTYPES);
115
116 return msgindex;
117}
118
119static rtnl_doit_func rtnl_get_doit(int protocol, int msgindex)
120{
121 struct rtnl_link *tab;
122
25239cee 123 if (protocol <= RTNL_FAMILY_MAX)
0f87b1dd
PM		 124 tab = rtnl_msg_handlers[protocol];
125 else
126 tab = NULL;
127
51057f2f 128 if (tab == NULL || tab[msgindex].doit == NULL)
e2849863
TG		 129 tab = rtnl_msg_handlers[PF_UNSPEC];
130
c80bbeae 131 return tab[msgindex].doit;
e2849863
TG		 132}
133
134static rtnl_dumpit_func rtnl_get_dumpit(int protocol, int msgindex)
135{
136 struct rtnl_link *tab;
137
25239cee 138 if (protocol <= RTNL_FAMILY_MAX)
0f87b1dd
PM		 139 tab = rtnl_msg_handlers[protocol];
140 else
141 tab = NULL;
142
51057f2f 143 if (tab == NULL || tab[msgindex].dumpit == NULL)
e2849863
TG		 144 tab = rtnl_msg_handlers[PF_UNSPEC];
145
c80bbeae 146 return tab[msgindex].dumpit;
e2849863
TG		 147}
148
c7ac8679
GR		 149static rtnl_calcit_func rtnl_get_calcit(int protocol, int msgindex)
150{
151 struct rtnl_link *tab;
152
153 if (protocol <= RTNL_FAMILY_MAX)
154 tab = rtnl_msg_handlers[protocol];
155 else
156 tab = NULL;
157
158 if (tab == NULL || tab[msgindex].calcit == NULL)
159 tab = rtnl_msg_handlers[PF_UNSPEC];
160
c80bbeae 161 return tab[msgindex].calcit;
c7ac8679
GR		 162}
163
e2849863
TG		 164/**
165 * __rtnl_register - Register a rtnetlink message type
166 * @protocol: Protocol family or PF_UNSPEC
167 * @msgtype: rtnetlink message type
168 * @doit: Function pointer called for each request message
169 * @dumpit: Function pointer called for each dump request (NLM_F_DUMP) message
c7ac8679 170 * @calcit: Function pointer to calc size of dump message
e2849863
TG		 171 *
172 * Registers the specified function pointers (at least one of them has
173 * to be non-NULL) to be called whenever a request message for the
174 * specified protocol family and message type is received.
175 *
176 * The special protocol family PF_UNSPEC may be used to define fallback
177 * function pointers for the case when no entry for the specific protocol
178 * family exists.
179 *
180 * Returns 0 on success or a negative error code.
181 */
182int __rtnl_register(int protocol, int msgtype,
c7ac8679
GR		 183 rtnl_doit_func doit, rtnl_dumpit_func dumpit,
184 rtnl_calcit_func calcit)
e2849863
TG		 185{
186 struct rtnl_link *tab;
187 int msgindex;
188
25239cee 189 BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX);
e2849863
TG		 190 msgindex = rtm_msgindex(msgtype);
191
192 tab = rtnl_msg_handlers[protocol];
193 if (tab == NULL) {
194 tab = kcalloc(RTM_NR_MSGTYPES, sizeof(*tab), GFP_KERNEL);
195 if (tab == NULL)
196 return -ENOBUFS;
197
198 rtnl_msg_handlers[protocol] = tab;
199 }
200
201 if (doit)
202 tab[msgindex].doit = doit;
203
204 if (dumpit)
205 tab[msgindex].dumpit = dumpit;
206
c7ac8679
GR		 207 if (calcit)
208 tab[msgindex].calcit = calcit;
209
e2849863
TG		 210 return 0;
211}
e2849863
TG		 212EXPORT_SYMBOL_GPL(__rtnl_register);
213
214/**
215 * rtnl_register - Register a rtnetlink message type
216 *
217 * Identical to __rtnl_register() but panics on failure. This is useful
218 * as failure of this function is very unlikely, it can only happen due
219 * to lack of memory when allocating the chain to store all message
220 * handlers for a protocol. Meant for use in init functions where lack
25985edc 221 * of memory implies no sense in continuing.
e2849863
TG		 222 */
223void rtnl_register(int protocol, int msgtype,
c7ac8679
GR		 224 rtnl_doit_func doit, rtnl_dumpit_func dumpit,
225 rtnl_calcit_func calcit)
e2849863 226{
c7ac8679 227 if (__rtnl_register(protocol, msgtype, doit, dumpit, calcit) < 0)
e2849863
TG		 228 panic("Unable to register rtnetlink message handler, "
229 "protocol = %d, message type = %d\n",
230 protocol, msgtype);
231}
e2849863
TG		 232EXPORT_SYMBOL_GPL(rtnl_register);
233
234/**
235 * rtnl_unregister - Unregister a rtnetlink message type
236 * @protocol: Protocol family or PF_UNSPEC
237 * @msgtype: rtnetlink message type
238 *
239 * Returns 0 on success or a negative error code.
240 */
241int rtnl_unregister(int protocol, int msgtype)
242{
243 int msgindex;
244
25239cee 245 BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX);
e2849863
TG		 246 msgindex = rtm_msgindex(msgtype);
247
248 if (rtnl_msg_handlers[protocol] == NULL)
249 return -ENOENT;
250
251 rtnl_msg_handlers[protocol][msgindex].doit = NULL;
252 rtnl_msg_handlers[protocol][msgindex].dumpit = NULL;
253
254 return 0;
255}
e2849863
TG		 256EXPORT_SYMBOL_GPL(rtnl_unregister);
257
258/**
259 * rtnl_unregister_all - Unregister all rtnetlink message type of a protocol
260 * @protocol : Protocol family or PF_UNSPEC
261 *
262 * Identical to calling rtnl_unregster() for all registered message types
263 * of a certain protocol family.
264 */
265void rtnl_unregister_all(int protocol)
266{
25239cee 267 BUG_ON(protocol < 0 || protocol > RTNL_FAMILY_MAX);
e2849863
TG		 268
269 kfree(rtnl_msg_handlers[protocol]);
270 rtnl_msg_handlers[protocol] = NULL;
271}
e2849863 272EXPORT_SYMBOL_GPL(rtnl_unregister_all);
1da177e4 273
38f7b870
PM		 274static LIST_HEAD(link_ops);
275
c63044f0
ED		 276static const struct rtnl_link_ops *rtnl_link_ops_get(const char *kind)
277{
278 const struct rtnl_link_ops *ops;
279
280 list_for_each_entry(ops, &link_ops, list) {
281 if (!strcmp(ops->kind, kind))
282 return ops;
283 }
284 return NULL;
285}
286
38f7b870
PM		 287/**
288 * __rtnl_link_register - Register rtnl_link_ops with rtnetlink.
289 * @ops: struct rtnl_link_ops * to register
290 *
291 * The caller must hold the rtnl_mutex. This function should be used
292 * by drivers that create devices during module initialization. It
293 * must be called before registering the devices.
294 *
295 * Returns 0 on success or a negative error code.
296 */
297int __rtnl_link_register(struct rtnl_link_ops *ops)
298{
c63044f0
ED		 299 if (rtnl_link_ops_get(ops->kind))
300 return -EEXIST;
301
2d85cba2 302 if (!ops->dellink)
23289a37 303 ops->dellink = unregister_netdevice_queue;
2d85cba2 304
38f7b870
PM		 305 list_add_tail(&ops->list, &link_ops);
306 return 0;
307}
38f7b870
PM		 308EXPORT_SYMBOL_GPL(__rtnl_link_register);
309
310/**
311 * rtnl_link_register - Register rtnl_link_ops with rtnetlink.
312 * @ops: struct rtnl_link_ops * to register
313 *
314 * Returns 0 on success or a negative error code.
315 */
316int rtnl_link_register(struct rtnl_link_ops *ops)
317{
318 int err;
319
320 rtnl_lock();
321 err = __rtnl_link_register(ops);
322 rtnl_unlock();
323 return err;
324}
38f7b870
PM		 325EXPORT_SYMBOL_GPL(rtnl_link_register);
326
669f87ba
PE		 327static void __rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops)
328{
329 struct net_device *dev;
23289a37
ED		 330 LIST_HEAD(list_kill);
331
669f87ba 332 for_each_netdev(net, dev) {
23289a37
ED		 333 if (dev->rtnl_link_ops == ops)
334 ops->dellink(dev, &list_kill);
669f87ba 335 }
23289a37 336 unregister_netdevice_many(&list_kill);
669f87ba
PE		 337}
338
38f7b870
PM		 339/**
340 * __rtnl_link_unregister - Unregister rtnl_link_ops from rtnetlink.
341 * @ops: struct rtnl_link_ops * to unregister
342 *
2d85cba2 343 * The caller must hold the rtnl_mutex.
38f7b870
PM		 344 */
345void __rtnl_link_unregister(struct rtnl_link_ops *ops)
346{
881d966b 347 struct net *net;
2d85cba2 348
881d966b 349 for_each_net(net) {
669f87ba 350 __rtnl_kill_links(net, ops);
2d85cba2 351 }
38f7b870
PM		 352 list_del(&ops->list);
353}
38f7b870
PM		 354EXPORT_SYMBOL_GPL(__rtnl_link_unregister);
355
356/**
357 * rtnl_link_unregister - Unregister rtnl_link_ops from rtnetlink.
358 * @ops: struct rtnl_link_ops * to unregister
359 */
360void rtnl_link_unregister(struct rtnl_link_ops *ops)
361{
362 rtnl_lock();
363 __rtnl_link_unregister(ops);
364 rtnl_unlock();
365}
38f7b870
PM		 366EXPORT_SYMBOL_GPL(rtnl_link_unregister);
367
38f7b870
PM		 368static size_t rtnl_link_get_size(const struct net_device *dev)
369{
370 const struct rtnl_link_ops *ops = dev->rtnl_link_ops;
371 size_t size;
372
373 if (!ops)
374 return 0;
375
369cf77a
TG		 376 size = nla_total_size(sizeof(struct nlattr)) + /* IFLA_LINKINFO */
377 nla_total_size(strlen(ops->kind) + 1); /* IFLA_INFO_KIND */
38f7b870
PM		 378
379 if (ops->get_size)
380 /* IFLA_INFO_DATA + nested data */
369cf77a 381 size += nla_total_size(sizeof(struct nlattr)) +
38f7b870
PM		 382 ops->get_size(dev);
383
384 if (ops->get_xstats_size)
369cf77a
TG		 385 /* IFLA_INFO_XSTATS */
386 size += nla_total_size(ops->get_xstats_size(dev));
38f7b870
PM		 387
388 return size;
389}
390
f8ff182c
TG		 391static LIST_HEAD(rtnl_af_ops);
392
393static const struct rtnl_af_ops *rtnl_af_lookup(const int family)
394{
395 const struct rtnl_af_ops *ops;
396
397 list_for_each_entry(ops, &rtnl_af_ops, list) {
398 if (ops->family == family)
399 return ops;
400 }
401
402 return NULL;
403}
404
f8ff182c
TG		 405/**
406 * rtnl_af_register - Register rtnl_af_ops with rtnetlink.
407 * @ops: struct rtnl_af_ops * to register
408 *
409 * Returns 0 on success or a negative error code.
410 */
3678a9d8 411void rtnl_af_register(struct rtnl_af_ops *ops)
f8ff182c 412{
f8ff182c 413 rtnl_lock();
3678a9d8 414 list_add_tail(&ops->list, &rtnl_af_ops);
f8ff182c 415 rtnl_unlock();
f8ff182c
TG		 416}
417EXPORT_SYMBOL_GPL(rtnl_af_register);
418
419/**
420 * __rtnl_af_unregister - Unregister rtnl_af_ops from rtnetlink.
421 * @ops: struct rtnl_af_ops * to unregister
422 *
423 * The caller must hold the rtnl_mutex.
424 */
425void __rtnl_af_unregister(struct rtnl_af_ops *ops)
426{
427 list_del(&ops->list);
428}
429EXPORT_SYMBOL_GPL(__rtnl_af_unregister);
430
431/**
432 * rtnl_af_unregister - Unregister rtnl_af_ops from rtnetlink.
433 * @ops: struct rtnl_af_ops * to unregister
434 */
435void rtnl_af_unregister(struct rtnl_af_ops *ops)
436{
437 rtnl_lock();
438 __rtnl_af_unregister(ops);
439 rtnl_unlock();
440}
441EXPORT_SYMBOL_GPL(rtnl_af_unregister);
442
443static size_t rtnl_link_get_af_size(const struct net_device *dev)
444{
445 struct rtnl_af_ops *af_ops;
446 size_t size;
447
448 /* IFLA_AF_SPEC */
449 size = nla_total_size(sizeof(struct nlattr));
450
451 list_for_each_entry(af_ops, &rtnl_af_ops, list) {
452 if (af_ops->get_link_af_size) {
453 /* AF_* + nested data */
454 size += nla_total_size(sizeof(struct nlattr)) +
455 af_ops->get_link_af_size(dev);
456 }
457 }
458
459 return size;
460}
461
38f7b870
PM		 462static int rtnl_link_fill(struct sk_buff *skb, const struct net_device *dev)
463{
464 const struct rtnl_link_ops *ops = dev->rtnl_link_ops;
465 struct nlattr *linkinfo, *data;
466 int err = -EMSGSIZE;
467
468 linkinfo = nla_nest_start(skb, IFLA_LINKINFO);
469 if (linkinfo == NULL)
470 goto out;
471
472 if (nla_put_string(skb, IFLA_INFO_KIND, ops->kind) < 0)
473 goto err_cancel_link;
474 if (ops->fill_xstats) {
475 err = ops->fill_xstats(skb, dev);
476 if (err < 0)
477 goto err_cancel_link;
478 }
479 if (ops->fill_info) {
480 data = nla_nest_start(skb, IFLA_INFO_DATA);
fcca143d
WY		 481 if (data == NULL) {
482 err = -EMSGSIZE;
38f7b870 483 goto err_cancel_link;
fcca143d 484 }
38f7b870
PM		 485 err = ops->fill_info(skb, dev);
486 if (err < 0)
487 goto err_cancel_data;
488 nla_nest_end(skb, data);
489 }
490
491 nla_nest_end(skb, linkinfo);
492 return 0;
493
494err_cancel_data:
495 nla_nest_cancel(skb, data);
496err_cancel_link:
497 nla_nest_cancel(skb, linkinfo);
498out:
499 return err;
500}
501
95c96174 502int rtnetlink_send(struct sk_buff *skb, struct net *net, u32 pid, unsigned int group, int echo)
1da177e4 503{
97c53cac 504 struct sock *rtnl = net->rtnl;
1da177e4
LT		 505 int err = 0;
506
ac6d439d 507 NETLINK_CB(skb).dst_group = group;
1da177e4
LT		 508 if (echo)
509 atomic_inc(&skb->users);
510 netlink_broadcast(rtnl, skb, pid, group, GFP_KERNEL);
511 if (echo)
512 err = netlink_unicast(rtnl, skb, pid, MSG_DONTWAIT);
513 return err;
514}
515
97c53cac 516int rtnl_unicast(struct sk_buff *skb, struct net *net, u32 pid)
2942e900 517{
97c53cac
DL		 518 struct sock *rtnl = net->rtnl;
519
2942e900
TG		 520 return nlmsg_unicast(rtnl, skb, pid);
521}
e0d087af 522EXPORT_SYMBOL(rtnl_unicast);
2942e900 523
1ce85fe4
PNA		 524void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
525 struct nlmsghdr *nlh, gfp_t flags)
97676b6b 526{
97c53cac 527 struct sock *rtnl = net->rtnl;
97676b6b
TG		 528 int report = 0;
529
530 if (nlh)
531 report = nlmsg_report(nlh);
532
1ce85fe4 533 nlmsg_notify(rtnl, skb, pid, group, report, flags);
97676b6b 534}
e0d087af 535EXPORT_SYMBOL(rtnl_notify);
97676b6b 536
97c53cac 537void rtnl_set_sk_err(struct net *net, u32 group, int error)
97676b6b 538{
97c53cac
DL		 539 struct sock *rtnl = net->rtnl;
540
97676b6b
TG		 541 netlink_set_err(rtnl, 0, group, error);
542}
e0d087af 543EXPORT_SYMBOL(rtnl_set_sk_err);
97676b6b 544
1da177e4
LT		 545int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics)
546{
2d7202bf
TG		 547 struct nlattr *mx;
548 int i, valid = 0;
549
550 mx = nla_nest_start(skb, RTA_METRICS);
551 if (mx == NULL)
552 return -ENOBUFS;
553
554 for (i = 0; i < RTAX_MAX; i++) {
555 if (metrics[i]) {
556 valid++;
a6574349
DM		 557 if (nla_put_u32(skb, i+1, metrics[i]))
558 goto nla_put_failure;
2d7202bf 559 }
1da177e4 560 }
1da177e4 561
a57d27fc
DM		 562 if (!valid) {
563 nla_nest_cancel(skb, mx);
564 return 0;
565 }
2d7202bf
TG		 566
567 return nla_nest_end(skb, mx);
568
569nla_put_failure:
bc3ed28c
TG		 570 nla_nest_cancel(skb, mx);
571 return -EMSGSIZE;
1da177e4 572}
e0d087af 573EXPORT_SYMBOL(rtnetlink_put_metrics);
1da177e4 574
e3703b3d 575int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id,
87a50699 576 long expires, u32 error)
e3703b3d
TG		 577{
578 struct rta_cacheinfo ci = {
a399a805 579 .rta_lastuse = jiffies_delta_to_clock_t(jiffies - dst->lastuse),
e3703b3d
TG		 580 .rta_used = dst->__use,
581 .rta_clntref = atomic_read(&(dst->__refcnt)),
582 .rta_error = error,
583 .rta_id = id,
e3703b3d
TG		 584 };
585
8253947e
LW		 586 if (expires) {
587 unsigned long clock;
e3703b3d 588
8253947e
LW		 589 clock = jiffies_to_clock_t(abs(expires));
590 clock = min_t(unsigned long, clock, INT_MAX);
591 ci.rta_expires = (expires > 0) ? clock : -clock;
592 }
e3703b3d
TG		 593 return nla_put(skb, RTA_CACHEINFO, sizeof(ci), &ci);
594}
e3703b3d 595EXPORT_SYMBOL_GPL(rtnl_put_cacheinfo);
1da177e4 596
93b2d4a2 597static void set_operstate(struct net_device *dev, unsigned char transition)
b00055aa
SR		 598{
599 unsigned char operstate = dev->operstate;
600
e0d087af 601 switch (transition) {
b00055aa
SR		 602 case IF_OPER_UP:
603 if ((operstate == IF_OPER_DORMANT ||
604 operstate == IF_OPER_UNKNOWN) &&
605 !netif_dormant(dev))
606 operstate = IF_OPER_UP;
607 break;
608
609 case IF_OPER_DORMANT:
610 if (operstate == IF_OPER_UP ||
611 operstate == IF_OPER_UNKNOWN)
612 operstate = IF_OPER_DORMANT;
613 break;
3ff50b79 614 }
b00055aa
SR		 615
616 if (dev->operstate != operstate) {
617 write_lock_bh(&dev_base_lock);
618 dev->operstate = operstate;
619 write_unlock_bh(&dev_base_lock);
93b2d4a2
DM		 620 netdev_state_change(dev);
621 }
b00055aa
SR		 622}
623
b1beb681
JB		 624static unsigned int rtnl_dev_get_flags(const struct net_device *dev)
625{
626 return (dev->flags & ~(IFF_PROMISC | IFF_ALLMULTI)) |
627 (dev->gflags & (IFF_PROMISC | IFF_ALLMULTI));
628}
629
3729d502
PM		 630static unsigned int rtnl_dev_combine_flags(const struct net_device *dev,
631 const struct ifinfomsg *ifm)
632{
633 unsigned int flags = ifm->ifi_flags;
634
635 /* bugwards compatibility: ifi_change == 0 is treated as ~0 */
636 if (ifm->ifi_change)
637 flags = (flags & ifm->ifi_change) |
b1beb681 638 (rtnl_dev_get_flags(dev) & ~ifm->ifi_change);
3729d502
PM		 639
640 return flags;
641}
642
b60c5115 643static void copy_rtnl_link_stats(struct rtnl_link_stats *a,
be1f3c2c 644 const struct rtnl_link_stats64 *b)
1da177e4 645{
b60c5115
TG		 646 a->rx_packets = b->rx_packets;
647 a->tx_packets = b->tx_packets;
648 a->rx_bytes = b->rx_bytes;
649 a->tx_bytes = b->tx_bytes;
650 a->rx_errors = b->rx_errors;
651 a->tx_errors = b->tx_errors;
652 a->rx_dropped = b->rx_dropped;
653 a->tx_dropped = b->tx_dropped;
654
655 a->multicast = b->multicast;
656 a->collisions = b->collisions;
657
658 a->rx_length_errors = b->rx_length_errors;
659 a->rx_over_errors = b->rx_over_errors;
660 a->rx_crc_errors = b->rx_crc_errors;
661 a->rx_frame_errors = b->rx_frame_errors;
662 a->rx_fifo_errors = b->rx_fifo_errors;
663 a->rx_missed_errors = b->rx_missed_errors;
664
665 a->tx_aborted_errors = b->tx_aborted_errors;
666 a->tx_carrier_errors = b->tx_carrier_errors;
667 a->tx_fifo_errors = b->tx_fifo_errors;
668 a->tx_heartbeat_errors = b->tx_heartbeat_errors;
669 a->tx_window_errors = b->tx_window_errors;
670
671 a->rx_compressed = b->rx_compressed;
672 a->tx_compressed = b->tx_compressed;
10708f37
JE		 673}
674
be1f3c2c 675static void copy_rtnl_link_stats64(void *v, const struct rtnl_link_stats64 *b)
10708f37 676{
afdcba37 677 memcpy(v, b, sizeof(*b));
10708f37 678}
1da177e4 679
c02db8c6 680/* All VF info */
115c9b81
GR		 681static inline int rtnl_vfinfo_size(const struct net_device *dev,
682 u32 ext_filter_mask)
ebc08a6f 683{
115c9b81
GR		 684 if (dev->dev.parent && dev_is_pci(dev->dev.parent) &&
685 (ext_filter_mask & RTEXT_FILTER_VF)) {
c02db8c6 686 int num_vfs = dev_num_vf(dev->dev.parent);
045de01a
SF		 687 size_t size = nla_total_size(sizeof(struct nlattr));
688 size += nla_total_size(num_vfs * sizeof(struct nlattr));
689 size += num_vfs *
690 (nla_total_size(sizeof(struct ifla_vf_mac)) +
691 nla_total_size(sizeof(struct ifla_vf_vlan)) +
5f8444a3
GR		 692 nla_total_size(sizeof(struct ifla_vf_tx_rate)) +
693 nla_total_size(sizeof(struct ifla_vf_spoofchk)));
c02db8c6
CW		 694 return size;
695 } else
ebc08a6f
WM		 696 return 0;
697}
698
57b61080
SF		 699static size_t rtnl_port_size(const struct net_device *dev)
700{
701 size_t port_size = nla_total_size(4) /* PORT_VF */
702 + nla_total_size(PORT_PROFILE_MAX) /* PORT_PROFILE */
703 + nla_total_size(sizeof(struct ifla_port_vsi))
704 /* PORT_VSI_TYPE */
705 + nla_total_size(PORT_UUID_MAX) /* PORT_INSTANCE_UUID */
706 + nla_total_size(PORT_UUID_MAX) /* PORT_HOST_UUID */
707 + nla_total_size(1) /* PROT_VDP_REQUEST */
708 + nla_total_size(2); /* PORT_VDP_RESPONSE */
709 size_t vf_ports_size = nla_total_size(sizeof(struct nlattr));
710 size_t vf_port_size = nla_total_size(sizeof(struct nlattr))
711 + port_size;
712 size_t port_self_size = nla_total_size(sizeof(struct nlattr))
713 + port_size;
714
715 if (!dev->netdev_ops->ndo_get_vf_port || !dev->dev.parent)
716 return 0;
717 if (dev_num_vf(dev->dev.parent))
718 return port_self_size + vf_ports_size +
719 vf_port_size * dev_num_vf(dev->dev.parent);
720 else
721 return port_self_size;
722}
723
1d3ee88a 724static size_t rtnl_bond_slave_size(const struct net_device *dev)
725{
726 struct net_device *bond;
727 size_t slave_size =
df7dbcbb
JP		 728 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_SLAVE */
729 nla_total_size(1) + /* IFLA_BOND_SLAVE_STATE */
730 nla_total_size(1) + /* IFLA_BOND_SLAVE_MII_STATUS */
731 nla_total_size(4) + /* IFLA_BOND_SLAVE_LINK_FAILURE_COUNT */
732 nla_total_size(MAX_ADDR_LEN) + /* IFLA_BOND_SLAVE_PERM_HWADDR */
733 nla_total_size(2) + /* IFLA_BOND_SLAVE_QUEUE_ID */
734 nla_total_size(2) + /* IFLA_BOND_SLAVE_AD_AGGREGATOR_ID */
1d3ee88a 735 0;
736
737 if (netif_is_bond_slave((struct net_device *)dev)) {
738 bond = netdev_master_upper_dev_get((struct net_device *)dev);
739 if (bond && bond->netdev_ops->ndo_get_slave)
740 return slave_size;
741 }
742
743 return 0;
744}
745
115c9b81
GR		 746static noinline size_t if_nlmsg_size(const struct net_device *dev,
747 u32 ext_filter_mask)
339bf98f
TG		 748{
749 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
750 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
0b815a1a 751 + nla_total_size(IFALIASZ) /* IFLA_IFALIAS */
339bf98f
TG		 752 + nla_total_size(IFNAMSIZ) /* IFLA_QDISC */
753 + nla_total_size(sizeof(struct rtnl_link_ifmap))
754 + nla_total_size(sizeof(struct rtnl_link_stats))
adcfe196 755 + nla_total_size(sizeof(struct rtnl_link_stats64))
339bf98f
TG		 756 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
757 + nla_total_size(MAX_ADDR_LEN) /* IFLA_BROADCAST */
758 + nla_total_size(4) /* IFLA_TXQLEN */
759 + nla_total_size(4) /* IFLA_WEIGHT */
760 + nla_total_size(4) /* IFLA_MTU */
761 + nla_total_size(4) /* IFLA_LINK */
762 + nla_total_size(4) /* IFLA_MASTER */
9a57247f 763 + nla_total_size(1) /* IFLA_CARRIER */
edbc0bb3 764 + nla_total_size(4) /* IFLA_PROMISCUITY */
76ff5cc9
JP		 765 + nla_total_size(4) /* IFLA_NUM_TX_QUEUES */
766 + nla_total_size(4) /* IFLA_NUM_RX_QUEUES */
339bf98f 767 + nla_total_size(1) /* IFLA_OPERSTATE */
38f7b870 768 + nla_total_size(1) /* IFLA_LINKMODE */
115c9b81
GR		 769 + nla_total_size(ext_filter_mask
770 & RTEXT_FILTER_VF ? 4 : 0) /* IFLA_NUM_VF */
771 + rtnl_vfinfo_size(dev, ext_filter_mask) /* IFLA_VFINFO_LIST */
57b61080 772 + rtnl_port_size(dev) /* IFLA_VF_PORTS + IFLA_PORT_SELF */
f8ff182c 773 + rtnl_link_get_size(dev) /* IFLA_LINKINFO */
66cae9ed 774 + rtnl_link_get_af_size(dev) /* IFLA_AF_SPEC */
1d3ee88a 775 + rtnl_bond_slave_size(dev) /* IFLA_SLAVE */
66cae9ed 776 + nla_total_size(MAX_PHYS_PORT_ID_LEN); /* IFLA_PHYS_PORT_ID */
339bf98f
TG		 777}
778
57b61080
SF		 779static int rtnl_vf_ports_fill(struct sk_buff *skb, struct net_device *dev)
780{
781 struct nlattr *vf_ports;
782 struct nlattr *vf_port;
783 int vf;
784 int err;
785
786 vf_ports = nla_nest_start(skb, IFLA_VF_PORTS);
787 if (!vf_ports)
788 return -EMSGSIZE;
789
790 for (vf = 0; vf < dev_num_vf(dev->dev.parent); vf++) {
791 vf_port = nla_nest_start(skb, IFLA_VF_PORT);
8ca94183
SF		 792 if (!vf_port)
793 goto nla_put_failure;
a6574349
DM		 794 if (nla_put_u32(skb, IFLA_PORT_VF, vf))
795 goto nla_put_failure;
57b61080 796 err = dev->netdev_ops->ndo_get_vf_port(dev, vf, skb);
8ca94183
SF		 797 if (err == -EMSGSIZE)
798 goto nla_put_failure;
57b61080 799 if (err) {
57b61080
SF		 800 nla_nest_cancel(skb, vf_port);
801 continue;
802 }
803 nla_nest_end(skb, vf_port);
804 }
805
806 nla_nest_end(skb, vf_ports);
807
808 return 0;
8ca94183
SF		 809
810nla_put_failure:
811 nla_nest_cancel(skb, vf_ports);
812 return -EMSGSIZE;
57b61080
SF		 813}
814
815static int rtnl_port_self_fill(struct sk_buff *skb, struct net_device *dev)
816{
817 struct nlattr *port_self;
818 int err;
819
820 port_self = nla_nest_start(skb, IFLA_PORT_SELF);
821 if (!port_self)
822 return -EMSGSIZE;
823
824 err = dev->netdev_ops->ndo_get_vf_port(dev, PORT_SELF_VF, skb);
825 if (err) {
826 nla_nest_cancel(skb, port_self);
8ca94183 827 return (err == -EMSGSIZE) ? err : 0;
57b61080
SF		 828 }
829
830 nla_nest_end(skb, port_self);
831
832 return 0;
833}
834
835static int rtnl_port_fill(struct sk_buff *skb, struct net_device *dev)
836{
837 int err;
838
839 if (!dev->netdev_ops->ndo_get_vf_port || !dev->dev.parent)
840 return 0;
841
842 err = rtnl_port_self_fill(skb, dev);
843 if (err)
844 return err;
845
846 if (dev_num_vf(dev->dev.parent)) {
847 err = rtnl_vf_ports_fill(skb, dev);
848 if (err)
849 return err;
850 }
851
852 return 0;
853}
854
66cae9ed
JP		 855static int rtnl_phys_port_id_fill(struct sk_buff *skb, struct net_device *dev)
856{
857 int err;
858 struct netdev_phys_port_id ppid;
859
860 err = dev_get_phys_port_id(dev, &ppid);
861 if (err) {
862 if (err == -EOPNOTSUPP)
863 return 0;
864 return err;
865 }
866
867 if (nla_put(skb, IFLA_PHYS_PORT_ID, ppid.id_len, ppid.id))
868 return -EMSGSIZE;
869
870 return 0;
871}
872
1d3ee88a 873static size_t rtnl_bond_slave_fill(struct sk_buff *skb, struct net_device *dev)
874{
875 struct net_device *bond;
876 struct nlattr *nest;
877 int err;
878
879 if (!netif_is_bond_slave(dev))
880 return 0;
881
882 bond = netdev_master_upper_dev_get(dev);
883 if (!bond || !bond->netdev_ops->ndo_get_slave)
884 return 0;
885
df7dbcbb 886 nest = nla_nest_start(skb, IFLA_BOND_SLAVE);
1d3ee88a 887 if (!nest)
888 return -EMSGSIZE;
889
890 err = bond->netdev_ops->ndo_get_slave(dev, skb);
891 if (err) {
892 nla_nest_cancel(skb, nest);
893 return (err == -EMSGSIZE) ? err : 0;
894 }
895
896 nla_nest_end(skb, nest);
897
898 return 0;
899}
900
b60c5115 901static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev,
575c3e2a 902 int type, u32 pid, u32 seq, u32 change,
115c9b81 903 unsigned int flags, u32 ext_filter_mask)
b60c5115
TG		 904{
905 struct ifinfomsg *ifm;
906 struct nlmsghdr *nlh;
28172739 907 struct rtnl_link_stats64 temp;
be1f3c2c 908 const struct rtnl_link_stats64 *stats;
f8ff182c
TG		 909 struct nlattr *attr, *af_spec;
910 struct rtnl_af_ops *af_ops;
898e5061 911 struct net_device *upper_dev = netdev_master_upper_dev_get(dev);
1da177e4 912
2907c35f 913 ASSERT_RTNL();
b60c5115
TG		 914 nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifm), flags);
915 if (nlh == NULL)
26932566 916 return -EMSGSIZE;
1da177e4 917
b60c5115
TG		 918 ifm = nlmsg_data(nlh);
919 ifm->ifi_family = AF_UNSPEC;
920 ifm->__ifi_pad = 0;
921 ifm->ifi_type = dev->type;
922 ifm->ifi_index = dev->ifindex;
923 ifm->ifi_flags = dev_get_flags(dev);
924 ifm->ifi_change = change;
925
a6574349
DM		 926 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
927 nla_put_u32(skb, IFLA_TXQLEN, dev->tx_queue_len) ||
928 nla_put_u8(skb, IFLA_OPERSTATE,
929 netif_running(dev) ? dev->operstate : IF_OPER_DOWN) ||
930 nla_put_u8(skb, IFLA_LINKMODE, dev->link_mode) ||
931 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
932 nla_put_u32(skb, IFLA_GROUP, dev->group) ||
edbc0bb3 933 nla_put_u32(skb, IFLA_PROMISCUITY, dev->promiscuity) ||
76ff5cc9 934 nla_put_u32(skb, IFLA_NUM_TX_QUEUES, dev->num_tx_queues) ||
1d69c2b3 935#ifdef CONFIG_RPS
76ff5cc9 936 nla_put_u32(skb, IFLA_NUM_RX_QUEUES, dev->num_rx_queues) ||
1d69c2b3 937#endif
a6574349
DM		 938 (dev->ifindex != dev->iflink &&
939 nla_put_u32(skb, IFLA_LINK, dev->iflink)) ||
898e5061
JP		 940 (upper_dev &&
941 nla_put_u32(skb, IFLA_MASTER, upper_dev->ifindex)) ||
9a57247f 942 nla_put_u8(skb, IFLA_CARRIER, netif_carrier_ok(dev)) ||
a6574349
DM		 943 (dev->qdisc &&
944 nla_put_string(skb, IFLA_QDISC, dev->qdisc->ops->id)) ||
945 (dev->ifalias &&
946 nla_put_string(skb, IFLA_IFALIAS, dev->ifalias)))
947 goto nla_put_failure;
0b815a1a 948
1da177e4
LT		 949 if (1) {
950 struct rtnl_link_ifmap map = {
951 .mem_start = dev->mem_start,
952 .mem_end = dev->mem_end,
953 .base_addr = dev->base_addr,
954 .irq = dev->irq,
955 .dma = dev->dma,
956 .port = dev->if_port,
957 };
a6574349
DM		 958 if (nla_put(skb, IFLA_MAP, sizeof(map), &map))
959 goto nla_put_failure;
1da177e4
LT		 960 }
961
962 if (dev->addr_len) {
a6574349
DM		 963 if (nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr) ||
964 nla_put(skb, IFLA_BROADCAST, dev->addr_len, dev->broadcast))
965 goto nla_put_failure;
1da177e4
LT		 966 }
967
66cae9ed
JP		 968 if (rtnl_phys_port_id_fill(skb, dev))
969 goto nla_put_failure;
970
96e74088
PE		 971 attr = nla_reserve(skb, IFLA_STATS,
972 sizeof(struct rtnl_link_stats));
973 if (attr == NULL)
974 goto nla_put_failure;
b60c5115 975
28172739 976 stats = dev_get_stats(dev, &temp);
96e74088 977 copy_rtnl_link_stats(nla_data(attr), stats);
1da177e4 978
10708f37
JE		 979 attr = nla_reserve(skb, IFLA_STATS64,
980 sizeof(struct rtnl_link_stats64));
981 if (attr == NULL)
982 goto nla_put_failure;
10708f37
JE		 983 copy_rtnl_link_stats64(nla_data(attr), stats);
984
a6574349
DM		 985 if (dev->dev.parent && (ext_filter_mask & RTEXT_FILTER_VF) &&
986 nla_put_u32(skb, IFLA_NUM_VF, dev_num_vf(dev->dev.parent)))
987 goto nla_put_failure;
57b61080 988
115c9b81
GR		 989 if (dev->netdev_ops->ndo_get_vf_config && dev->dev.parent
990 && (ext_filter_mask & RTEXT_FILTER_VF)) {
ebc08a6f 991 int i;
ebc08a6f 992
c02db8c6
CW		 993 struct nlattr *vfinfo, *vf;
994 int num_vfs = dev_num_vf(dev->dev.parent);
995
c02db8c6
CW		 996 vfinfo = nla_nest_start(skb, IFLA_VFINFO_LIST);
997 if (!vfinfo)
998 goto nla_put_failure;
999 for (i = 0; i < num_vfs; i++) {
1000 struct ifla_vf_info ivi;
1001 struct ifla_vf_mac vf_mac;
1002 struct ifla_vf_vlan vf_vlan;
1003 struct ifla_vf_tx_rate vf_tx_rate;
5f8444a3 1004 struct ifla_vf_spoofchk vf_spoofchk;
1d8faf48 1005 struct ifla_vf_link_state vf_linkstate;
5f8444a3
GR		 1006
1007 /*
1008 * Not all SR-IOV capable drivers support the
1009 * spoofcheck query. Preset to -1 so the user
1010 * space tool can detect that the driver didn't
1011 * report anything.
1012 */
1013 ivi.spoofchk = -1;
84d73cd3 1014 memset(ivi.mac, 0, sizeof(ivi.mac));
1d8faf48
RE		 1015 /* The default value for VF link state is "auto"
1016 * IFLA_VF_LINK_STATE_AUTO which equals zero
1017 */
1018 ivi.linkstate = 0;
ebc08a6f
WM		 1019 if (dev->netdev_ops->ndo_get_vf_config(dev, i, &ivi))
1020 break;
5f8444a3
GR		 1021 vf_mac.vf =
1022 vf_vlan.vf =
1023 vf_tx_rate.vf =
1d8faf48
RE		 1024 vf_spoofchk.vf =
1025 vf_linkstate.vf = ivi.vf;
5f8444a3 1026
c02db8c6
CW		 1027 memcpy(vf_mac.mac, ivi.mac, sizeof(ivi.mac));
1028 vf_vlan.vlan = ivi.vlan;
1029 vf_vlan.qos = ivi.qos;
1030 vf_tx_rate.rate = ivi.tx_rate;
5f8444a3 1031 vf_spoofchk.setting = ivi.spoofchk;
1d8faf48 1032 vf_linkstate.link_state = ivi.linkstate;
c02db8c6
CW		 1033 vf = nla_nest_start(skb, IFLA_VF_INFO);
1034 if (!vf) {
1035 nla_nest_cancel(skb, vfinfo);
1036 goto nla_put_failure;
1037 }
a6574349
DM		 1038 if (nla_put(skb, IFLA_VF_MAC, sizeof(vf_mac), &vf_mac) ||
1039 nla_put(skb, IFLA_VF_VLAN, sizeof(vf_vlan), &vf_vlan) ||
1040 nla_put(skb, IFLA_VF_TX_RATE, sizeof(vf_tx_rate),
1041 &vf_tx_rate) ||
1042 nla_put(skb, IFLA_VF_SPOOFCHK, sizeof(vf_spoofchk),
1d8faf48
RE		 1043 &vf_spoofchk) ||
1044 nla_put(skb, IFLA_VF_LINK_STATE, sizeof(vf_linkstate),
1045 &vf_linkstate))
a6574349 1046 goto nla_put_failure;
c02db8c6 1047 nla_nest_end(skb, vf);
ebc08a6f 1048 }
c02db8c6 1049 nla_nest_end(skb, vfinfo);
ebc08a6f 1050 }
57b61080
SF		 1051
1052 if (rtnl_port_fill(skb, dev))
1053 goto nla_put_failure;
1054
1d3ee88a 1055 if (rtnl_bond_slave_fill(skb, dev))
1056 goto nla_put_failure;
1057
38f7b870
PM		 1058 if (dev->rtnl_link_ops) {
1059 if (rtnl_link_fill(skb, dev) < 0)
1060 goto nla_put_failure;
1061 }
1062
f8ff182c
TG		 1063 if (!(af_spec = nla_nest_start(skb, IFLA_AF_SPEC)))
1064 goto nla_put_failure;
1065
1066 list_for_each_entry(af_ops, &rtnl_af_ops, list) {
1067 if (af_ops->fill_link_af) {
1068 struct nlattr *af;
1069 int err;
1070
1071 if (!(af = nla_nest_start(skb, af_ops->family)))
1072 goto nla_put_failure;
1073
1074 err = af_ops->fill_link_af(skb, dev);
1075
1076 /*
1077 * Caller may return ENODATA to indicate that there
1078 * was no data to be dumped. This is not an error, it
1079 * means we should trim the attribute header and
1080 * continue.
1081 */
1082 if (err == -ENODATA)
1083 nla_nest_cancel(skb, af);
1084 else if (err < 0)
1085 goto nla_put_failure;
1086
1087 nla_nest_end(skb, af);
1088 }
1089 }
1090
1091 nla_nest_end(skb, af_spec);
1092
b60c5115
TG		 1093 return nlmsg_end(skb, nlh);
1094
1095nla_put_failure:
26932566
PM		 1096 nlmsg_cancel(skb, nlh);
1097 return -EMSGSIZE;
1da177e4
LT		 1098}
1099
b60c5115 1100static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb)
1da177e4 1101{
3b1e0a65 1102 struct net *net = sock_net(skb->sk);
7c28bd0b
ED		 1103 int h, s_h;
1104 int idx = 0, s_idx;
1da177e4 1105 struct net_device *dev;
7c28bd0b 1106 struct hlist_head *head;
115c9b81
GR		 1107 struct nlattr *tb[IFLA_MAX+1];
1108 u32 ext_filter_mask = 0;
7c28bd0b
ED		 1109
1110 s_h = cb->args[0];
1111 s_idx = cb->args[1];
1112
e67f88dd 1113 rcu_read_lock();
4e985ada
TG		 1114 cb->seq = net->dev_base_seq;
1115
88c5b5ce 1116 if (nlmsg_parse(cb->nlh, sizeof(struct ifinfomsg), tb, IFLA_MAX,
a4b64fbe 1117 ifla_policy) >= 0) {
115c9b81 1118
a4b64fbe
ED		 1119 if (tb[IFLA_EXT_MASK])
1120 ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);
1121 }
115c9b81 1122
7c28bd0b
ED		 1123 for (h = s_h; h < NETDEV_HASHENTRIES; h++, s_idx = 0) {
1124 idx = 0;
1125 head = &net->dev_index_head[h];
b67bfe0d 1126 hlist_for_each_entry_rcu(dev, head, index_hlist) {
7c28bd0b
ED		 1127 if (idx < s_idx)
1128 goto cont;
1129 if (rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
15e47304 1130 NETLINK_CB(cb->skb).portid,
7c28bd0b 1131 cb->nlh->nlmsg_seq, 0,
115c9b81
GR		 1132 NLM_F_MULTI,
1133 ext_filter_mask) <= 0)
7c28bd0b 1134 goto out;
4e985ada
TG		 1135
1136 nl_dump_check_consistent(cb, nlmsg_hdr(skb));
7562f876 1137cont:
7c28bd0b
ED		 1138 idx++;
1139 }
1da177e4 1140 }
7c28bd0b 1141out:
e67f88dd 1142 rcu_read_unlock();
7c28bd0b
ED		 1143 cb->args[1] = idx;
1144 cb->args[0] = h;
1da177e4
LT		 1145
1146 return skb->len;
1147}
1148
e7199288 1149const struct nla_policy ifla_policy[IFLA_MAX+1] = {
5176f91e 1150 [IFLA_IFNAME] = { .type = NLA_STRING, .len = IFNAMSIZ-1 },
38f7b870
PM		 1151 [IFLA_ADDRESS] = { .type = NLA_BINARY, .len = MAX_ADDR_LEN },
1152 [IFLA_BROADCAST] = { .type = NLA_BINARY, .len = MAX_ADDR_LEN },
5176f91e 1153 [IFLA_MAP] = { .len = sizeof(struct rtnl_link_ifmap) },
da5e0494 1154 [IFLA_MTU] = { .type = NLA_U32 },
76e87306 1155 [IFLA_LINK] = { .type = NLA_U32 },
fbaec0ea 1156 [IFLA_MASTER] = { .type = NLA_U32 },
9a57247f 1157 [IFLA_CARRIER] = { .type = NLA_U8 },
da5e0494
TG		 1158 [IFLA_TXQLEN] = { .type = NLA_U32 },
1159 [IFLA_WEIGHT] = { .type = NLA_U32 },
1160 [IFLA_OPERSTATE] = { .type = NLA_U8 },
1161 [IFLA_LINKMODE] = { .type = NLA_U8 },
76e87306 1162 [IFLA_LINKINFO] = { .type = NLA_NESTED },
d8a5ec67 1163 [IFLA_NET_NS_PID] = { .type = NLA_U32 },
f0630529 1164 [IFLA_NET_NS_FD] = { .type = NLA_U32 },
0b815a1a 1165 [IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 },
c02db8c6 1166 [IFLA_VFINFO_LIST] = {. type = NLA_NESTED },
57b61080
SF		 1167 [IFLA_VF_PORTS] = { .type = NLA_NESTED },
1168 [IFLA_PORT_SELF] = { .type = NLA_NESTED },
f8ff182c 1169 [IFLA_AF_SPEC] = { .type = NLA_NESTED },
115c9b81 1170 [IFLA_EXT_MASK] = { .type = NLA_U32 },
edbc0bb3 1171 [IFLA_PROMISCUITY] = { .type = NLA_U32 },
76ff5cc9
JP		 1172 [IFLA_NUM_TX_QUEUES] = { .type = NLA_U32 },
1173 [IFLA_NUM_RX_QUEUES] = { .type = NLA_U32 },
66cae9ed 1174 [IFLA_PHYS_PORT_ID] = { .type = NLA_BINARY, .len = MAX_PHYS_PORT_ID_LEN },
da5e0494 1175};
e0d087af 1176EXPORT_SYMBOL(ifla_policy);
da5e0494 1177
38f7b870
PM		 1178static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
1179 [IFLA_INFO_KIND] = { .type = NLA_STRING },
1180 [IFLA_INFO_DATA] = { .type = NLA_NESTED },
1181};
1182
c02db8c6
CW		 1183static const struct nla_policy ifla_vfinfo_policy[IFLA_VF_INFO_MAX+1] = {
1184 [IFLA_VF_INFO] = { .type = NLA_NESTED },
1185};
1186
1187static const struct nla_policy ifla_vf_policy[IFLA_VF_MAX+1] = {
1188 [IFLA_VF_MAC] = { .type = NLA_BINARY,
1189 .len = sizeof(struct ifla_vf_mac) },
1190 [IFLA_VF_VLAN] = { .type = NLA_BINARY,
1191 .len = sizeof(struct ifla_vf_vlan) },
1192 [IFLA_VF_TX_RATE] = { .type = NLA_BINARY,
1193 .len = sizeof(struct ifla_vf_tx_rate) },
48752f65
GR		 1194 [IFLA_VF_SPOOFCHK] = { .type = NLA_BINARY,
1195 .len = sizeof(struct ifla_vf_spoofchk) },
c02db8c6
CW		 1196};
1197
57b61080
SF		 1198static const struct nla_policy ifla_port_policy[IFLA_PORT_MAX+1] = {
1199 [IFLA_PORT_VF] = { .type = NLA_U32 },
1200 [IFLA_PORT_PROFILE] = { .type = NLA_STRING,
1201 .len = PORT_PROFILE_MAX },
1202 [IFLA_PORT_VSI_TYPE] = { .type = NLA_BINARY,
1203 .len = sizeof(struct ifla_port_vsi)},
1204 [IFLA_PORT_INSTANCE_UUID] = { .type = NLA_BINARY,
1205 .len = PORT_UUID_MAX },
1206 [IFLA_PORT_HOST_UUID] = { .type = NLA_STRING,
1207 .len = PORT_UUID_MAX },
1208 [IFLA_PORT_REQUEST] = { .type = NLA_U8, },
1209 [IFLA_PORT_RESPONSE] = { .type = NLA_U16, },
1210};
1211
81adee47
EB		 1212struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[])
1213{
1214 struct net *net;
1215 /* Examine the link attributes and figure out which
1216 * network namespace we are talking about.
1217 */
1218 if (tb[IFLA_NET_NS_PID])
1219 net = get_net_ns_by_pid(nla_get_u32(tb[IFLA_NET_NS_PID]));
f0630529
EB		 1220 else if (tb[IFLA_NET_NS_FD])
1221 net = get_net_ns_by_fd(nla_get_u32(tb[IFLA_NET_NS_FD]));
81adee47
EB		 1222 else
1223 net = get_net(src_net);
1224 return net;
1225}
1226EXPORT_SYMBOL(rtnl_link_get_net);
1227
1840bb13
TG		 1228static int validate_linkmsg(struct net_device *dev, struct nlattr *tb[])
1229{
1230 if (dev) {
1231 if (tb[IFLA_ADDRESS] &&
1232 nla_len(tb[IFLA_ADDRESS]) < dev->addr_len)
1233 return -EINVAL;
1234
1235 if (tb[IFLA_BROADCAST] &&
1236 nla_len(tb[IFLA_BROADCAST]) < dev->addr_len)
1237 return -EINVAL;
1238 }
1239
cf7afbfe
TG		 1240 if (tb[IFLA_AF_SPEC]) {
1241 struct nlattr *af;
1242 int rem, err;
1243
1244 nla_for_each_nested(af, tb[IFLA_AF_SPEC], rem) {
1245 const struct rtnl_af_ops *af_ops;
1246
1247 if (!(af_ops = rtnl_af_lookup(nla_type(af))))
1248 return -EAFNOSUPPORT;
1249
1250 if (!af_ops->set_link_af)
1251 return -EOPNOTSUPP;
1252
1253 if (af_ops->validate_link_af) {
6d3a9a68 1254 err = af_ops->validate_link_af(dev, af);
cf7afbfe
TG		 1255 if (err < 0)
1256 return err;
1257 }
1258 }
1259 }
1260
1840bb13
TG		 1261 return 0;
1262}
1263
c02db8c6
CW		 1264static int do_setvfinfo(struct net_device *dev, struct nlattr *attr)
1265{
1266 int rem, err = -EINVAL;
1267 struct nlattr *vf;
1268 const struct net_device_ops *ops = dev->netdev_ops;
1269
1270 nla_for_each_nested(vf, attr, rem) {
1271 switch (nla_type(vf)) {
1272 case IFLA_VF_MAC: {
1273 struct ifla_vf_mac *ivm;
1274 ivm = nla_data(vf);
1275 err = -EOPNOTSUPP;
1276 if (ops->ndo_set_vf_mac)
1277 err = ops->ndo_set_vf_mac(dev, ivm->vf,
1278 ivm->mac);
1279 break;
1280 }
1281 case IFLA_VF_VLAN: {
1282 struct ifla_vf_vlan *ivv;
1283 ivv = nla_data(vf);
1284 err = -EOPNOTSUPP;
1285 if (ops->ndo_set_vf_vlan)
1286 err = ops->ndo_set_vf_vlan(dev, ivv->vf,
1287 ivv->vlan,
1288 ivv->qos);
1289 break;
1290 }
1291 case IFLA_VF_TX_RATE: {
1292 struct ifla_vf_tx_rate *ivt;
1293 ivt = nla_data(vf);
1294 err = -EOPNOTSUPP;
1295 if (ops->ndo_set_vf_tx_rate)
1296 err = ops->ndo_set_vf_tx_rate(dev, ivt->vf,
1297 ivt->rate);
1298 break;
1299 }
5f8444a3
GR		 1300 case IFLA_VF_SPOOFCHK: {
1301 struct ifla_vf_spoofchk *ivs;
1302 ivs = nla_data(vf);
1303 err = -EOPNOTSUPP;
1304 if (ops->ndo_set_vf_spoofchk)
1305 err = ops->ndo_set_vf_spoofchk(dev, ivs->vf,
1306 ivs->setting);
1307 break;
1308 }
1d8faf48
RE		 1309 case IFLA_VF_LINK_STATE: {
1310 struct ifla_vf_link_state *ivl;
1311 ivl = nla_data(vf);
1312 err = -EOPNOTSUPP;
1313 if (ops->ndo_set_vf_link_state)
1314 err = ops->ndo_set_vf_link_state(dev, ivl->vf,
1315 ivl->link_state);
1316 break;
1317 }
c02db8c6
CW		 1318 default:
1319 err = -EINVAL;
1320 break;
1321 }
1322 if (err)
1323 break;
1324 }
1325 return err;
1326}
1327
fbaec0ea
JP		 1328static int do_set_master(struct net_device *dev, int ifindex)
1329{
898e5061 1330 struct net_device *upper_dev = netdev_master_upper_dev_get(dev);
fbaec0ea
JP		 1331 const struct net_device_ops *ops;
1332 int err;
1333
898e5061
JP		 1334 if (upper_dev) {
1335 if (upper_dev->ifindex == ifindex)
fbaec0ea 1336 return 0;
898e5061 1337 ops = upper_dev->netdev_ops;
fbaec0ea 1338 if (ops->ndo_del_slave) {
898e5061 1339 err = ops->ndo_del_slave(upper_dev, dev);
fbaec0ea
JP		 1340 if (err)
1341 return err;
1342 } else {
1343 return -EOPNOTSUPP;
1344 }
1345 }
1346
1347 if (ifindex) {
898e5061
JP		 1348 upper_dev = __dev_get_by_index(dev_net(dev), ifindex);
1349 if (!upper_dev)
fbaec0ea 1350 return -EINVAL;
898e5061 1351 ops = upper_dev->netdev_ops;
fbaec0ea 1352 if (ops->ndo_add_slave) {
898e5061 1353 err = ops->ndo_add_slave(upper_dev, dev);
fbaec0ea
JP		 1354 if (err)
1355 return err;
1356 } else {
1357 return -EOPNOTSUPP;
1358 }
1359 }
1360 return 0;
1361}
1362
0157f60c 1363static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
38f7b870 1364 struct nlattr **tb, char *ifname, int modified)
1da177e4 1365{
d314774c 1366 const struct net_device_ops *ops = dev->netdev_ops;
0157f60c 1367 int err;
1da177e4 1368
f0630529 1369 if (tb[IFLA_NET_NS_PID] || tb[IFLA_NET_NS_FD]) {
81adee47 1370 struct net *net = rtnl_link_get_net(dev_net(dev), tb);
d8a5ec67
EB		 1371 if (IS_ERR(net)) {
1372 err = PTR_ERR(net);
1373 goto errout;
1374 }
b51642f6
EB		 1375 if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) {
1376 err = -EPERM;
1377 goto errout;
1378 }
d8a5ec67
EB		 1379 err = dev_change_net_namespace(dev, net, ifname);
1380 put_net(net);
1381 if (err)
1382 goto errout;
1383 modified = 1;
1384 }
1385
da5e0494 1386 if (tb[IFLA_MAP]) {
1da177e4
LT		 1387 struct rtnl_link_ifmap *u_map;
1388 struct ifmap k_map;
1389
d314774c 1390 if (!ops->ndo_set_config) {
1da177e4 1391 err = -EOPNOTSUPP;
0157f60c 1392 goto errout;
1da177e4
LT		 1393 }
1394
1395 if (!netif_device_present(dev)) {
1396 err = -ENODEV;
0157f60c 1397 goto errout;
1da177e4 1398 }
1da177e4 1399
da5e0494 1400 u_map = nla_data(tb[IFLA_MAP]);
1da177e4
LT		 1401 k_map.mem_start = (unsigned long) u_map->mem_start;
1402 k_map.mem_end = (unsigned long) u_map->mem_end;
1403 k_map.base_addr = (unsigned short) u_map->base_addr;
1404 k_map.irq = (unsigned char) u_map->irq;
1405 k_map.dma = (unsigned char) u_map->dma;
1406 k_map.port = (unsigned char) u_map->port;
1407
d314774c 1408 err = ops->ndo_set_config(dev, &k_map);
da5e0494 1409 if (err < 0)
0157f60c 1410 goto errout;
1da177e4 1411
da5e0494 1412 modified = 1;
1da177e4
LT		 1413 }
1414
da5e0494 1415 if (tb[IFLA_ADDRESS]) {
70f8e78e
DM		 1416 struct sockaddr *sa;
1417 int len;
1418
70f8e78e
DM		 1419 len = sizeof(sa_family_t) + dev->addr_len;
1420 sa = kmalloc(len, GFP_KERNEL);
1421 if (!sa) {
1422 err = -ENOMEM;
0157f60c 1423 goto errout;
70f8e78e
DM		 1424 }
1425 sa->sa_family = dev->type;
da5e0494 1426 memcpy(sa->sa_data, nla_data(tb[IFLA_ADDRESS]),
70f8e78e 1427 dev->addr_len);
e7c3273e 1428 err = dev_set_mac_address(dev, sa);
70f8e78e 1429 kfree(sa);
1da177e4 1430 if (err)
0157f60c 1431 goto errout;
da5e0494 1432 modified = 1;
1da177e4
LT		 1433 }
1434
da5e0494
TG		 1435 if (tb[IFLA_MTU]) {
1436 err = dev_set_mtu(dev, nla_get_u32(tb[IFLA_MTU]));
1437 if (err < 0)
0157f60c 1438 goto errout;
da5e0494 1439 modified = 1;
1da177e4
LT		 1440 }
1441
cbda10fa
VD		 1442 if (tb[IFLA_GROUP]) {
1443 dev_set_group(dev, nla_get_u32(tb[IFLA_GROUP]));
1444 modified = 1;
1445 }
1446
da5e0494
TG		 1447 /*
1448 * Interface selected by interface index but interface
1449 * name provided implies that a name change has been
1450 * requested.
1451 */
51055be8 1452 if (ifm->ifi_index > 0 && ifname[0]) {
da5e0494
TG		 1453 err = dev_change_name(dev, ifname);
1454 if (err < 0)
0157f60c 1455 goto errout;
da5e0494 1456 modified = 1;
1da177e4
LT		 1457 }
1458
0b815a1a
SH		 1459 if (tb[IFLA_IFALIAS]) {
1460 err = dev_set_alias(dev, nla_data(tb[IFLA_IFALIAS]),
1461 nla_len(tb[IFLA_IFALIAS]));
1462 if (err < 0)
1463 goto errout;
1464 modified = 1;
1465 }
1466
da5e0494
TG		 1467 if (tb[IFLA_BROADCAST]) {
1468 nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len);
e7c3273e 1469 call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
1da177e4
LT		 1470 }
1471
83b496e9 1472 if (ifm->ifi_flags || ifm->ifi_change) {
3729d502 1473 err = dev_change_flags(dev, rtnl_dev_combine_flags(dev, ifm));
5f9021cf
JB		 1474 if (err < 0)
1475 goto errout;
83b496e9 1476 }
1da177e4 1477
fbaec0ea
JP		 1478 if (tb[IFLA_MASTER]) {
1479 err = do_set_master(dev, nla_get_u32(tb[IFLA_MASTER]));
1480 if (err)
1481 goto errout;
1482 modified = 1;
1483 }
1484
9a57247f
JP		 1485 if (tb[IFLA_CARRIER]) {
1486 err = dev_change_carrier(dev, nla_get_u8(tb[IFLA_CARRIER]));
1487 if (err)
1488 goto errout;
1489 modified = 1;
1490 }
1491
93b2d4a2
DM		 1492 if (tb[IFLA_TXQLEN])
1493 dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
b00055aa 1494
da5e0494 1495 if (tb[IFLA_OPERSTATE])
93b2d4a2 1496 set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));
b00055aa 1497
da5e0494 1498 if (tb[IFLA_LINKMODE]) {
93b2d4a2
DM		 1499 write_lock_bh(&dev_base_lock);
1500 dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);
1501 write_unlock_bh(&dev_base_lock);
b00055aa
SR		 1502 }
1503
c02db8c6
CW		 1504 if (tb[IFLA_VFINFO_LIST]) {
1505 struct nlattr *attr;
1506 int rem;
1507 nla_for_each_nested(attr, tb[IFLA_VFINFO_LIST], rem) {
253683bb
DH		 1508 if (nla_type(attr) != IFLA_VF_INFO) {
1509 err = -EINVAL;
c02db8c6 1510 goto errout;
253683bb 1511 }
c02db8c6
CW		 1512 err = do_setvfinfo(dev, attr);
1513 if (err < 0)
1514 goto errout;
1515 modified = 1;
1516 }
ebc08a6f 1517 }
1da177e4
LT		 1518 err = 0;
1519
57b61080
SF		 1520 if (tb[IFLA_VF_PORTS]) {
1521 struct nlattr *port[IFLA_PORT_MAX+1];
1522 struct nlattr *attr;
1523 int vf;
1524 int rem;
1525
1526 err = -EOPNOTSUPP;
1527 if (!ops->ndo_set_vf_port)
1528 goto errout;
1529
1530 nla_for_each_nested(attr, tb[IFLA_VF_PORTS], rem) {
1531 if (nla_type(attr) != IFLA_VF_PORT)
1532 continue;
1533 err = nla_parse_nested(port, IFLA_PORT_MAX,
1534 attr, ifla_port_policy);
1535 if (err < 0)
1536 goto errout;
1537 if (!port[IFLA_PORT_VF]) {
1538 err = -EOPNOTSUPP;
1539 goto errout;
1540 }
1541 vf = nla_get_u32(port[IFLA_PORT_VF]);
1542 err = ops->ndo_set_vf_port(dev, vf, port);
1543 if (err < 0)
1544 goto errout;
1545 modified = 1;
1546 }
1547 }
1548 err = 0;
1549
1550 if (tb[IFLA_PORT_SELF]) {
1551 struct nlattr *port[IFLA_PORT_MAX+1];
1552
1553 err = nla_parse_nested(port, IFLA_PORT_MAX,
1554 tb[IFLA_PORT_SELF], ifla_port_policy);
1555 if (err < 0)
1556 goto errout;
1557
1558 err = -EOPNOTSUPP;
1559 if (ops->ndo_set_vf_port)
1560 err = ops->ndo_set_vf_port(dev, PORT_SELF_VF, port);
1561 if (err < 0)
1562 goto errout;
1563 modified = 1;
1564 }
f8ff182c
TG		 1565
1566 if (tb[IFLA_AF_SPEC]) {
1567 struct nlattr *af;
1568 int rem;
1569
1570 nla_for_each_nested(af, tb[IFLA_AF_SPEC], rem) {
1571 const struct rtnl_af_ops *af_ops;
1572
1573 if (!(af_ops = rtnl_af_lookup(nla_type(af))))
cf7afbfe 1574 BUG();
f8ff182c 1575
cf7afbfe 1576 err = af_ops->set_link_af(dev, af);
f8ff182c
TG		 1577 if (err < 0)
1578 goto errout;
1579
1580 modified = 1;
1581 }
1582 }
57b61080
SF		 1583 err = 0;
1584
0157f60c 1585errout:
e87cc472
JP		 1586 if (err < 0 && modified)
1587 net_warn_ratelimited("A link change request failed with some changes committed already. Interface %s may have been left with an inconsistent configuration, please check.\n",
1588 dev->name);
da5e0494 1589
0157f60c
PM		 1590 return err;
1591}
1da177e4 1592
661d2967 1593static int rtnl_setlink(struct sk_buff *skb, struct nlmsghdr *nlh)
0157f60c 1594{
3b1e0a65 1595 struct net *net = sock_net(skb->sk);
0157f60c
PM		 1596 struct ifinfomsg *ifm;
1597 struct net_device *dev;
1598 int err;
1599 struct nlattr *tb[IFLA_MAX+1];
1600 char ifname[IFNAMSIZ];
1601
1602 err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
1603 if (err < 0)
1604 goto errout;
1605
1606 if (tb[IFLA_IFNAME])
1607 nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
1608 else
1609 ifname[0] = '\0';
1610
1611 err = -EINVAL;
1612 ifm = nlmsg_data(nlh);
1613 if (ifm->ifi_index > 0)
a3d12891 1614 dev = __dev_get_by_index(net, ifm->ifi_index);
0157f60c 1615 else if (tb[IFLA_IFNAME])
a3d12891 1616 dev = __dev_get_by_name(net, ifname);
0157f60c
PM		 1617 else
1618 goto errout;
1619
1620 if (dev == NULL) {
1621 err = -ENODEV;
1622 goto errout;
1623 }
1624
e0d087af
ED		 1625 err = validate_linkmsg(dev, tb);
1626 if (err < 0)
a3d12891 1627 goto errout;
0157f60c 1628
38f7b870 1629 err = do_setlink(dev, ifm, tb, ifname, 0);
da5e0494 1630errout:
1da177e4
LT		 1631 return err;
1632}
1633
661d2967 1634static int rtnl_dellink(struct sk_buff *skb, struct nlmsghdr *nlh)
38f7b870 1635{
3b1e0a65 1636 struct net *net = sock_net(skb->sk);
38f7b870
PM		 1637 const struct rtnl_link_ops *ops;
1638 struct net_device *dev;
1639 struct ifinfomsg *ifm;
1640 char ifname[IFNAMSIZ];
1641 struct nlattr *tb[IFLA_MAX+1];
1642 int err;
226bd341 1643 LIST_HEAD(list_kill);
38f7b870
PM		 1644
1645 err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
1646 if (err < 0)
1647 return err;
1648
1649 if (tb[IFLA_IFNAME])
1650 nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
1651
1652 ifm = nlmsg_data(nlh);
1653 if (ifm->ifi_index > 0)
881d966b 1654 dev = __dev_get_by_index(net, ifm->ifi_index);
38f7b870 1655 else if (tb[IFLA_IFNAME])
881d966b 1656 dev = __dev_get_by_name(net, ifname);
38f7b870
PM		 1657 else
1658 return -EINVAL;
1659
1660 if (!dev)
1661 return -ENODEV;
1662
1663 ops = dev->rtnl_link_ops;
1664 if (!ops)
1665 return -EOPNOTSUPP;
1666
226bd341
ED		 1667 ops->dellink(dev, &list_kill);
1668 unregister_netdevice_many(&list_kill);
1669 list_del(&list_kill);
38f7b870
PM		 1670 return 0;
1671}
1672
3729d502
PM		 1673int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm)
1674{
1675 unsigned int old_flags;
1676 int err;
1677
1678 old_flags = dev->flags;
1679 if (ifm && (ifm->ifi_flags || ifm->ifi_change)) {
1680 err = __dev_change_flags(dev, rtnl_dev_combine_flags(dev, ifm));
1681 if (err < 0)
1682 return err;
1683 }
1684
1685 dev->rtnl_link_state = RTNL_LINK_INITIALIZED;
3729d502 1686
a528c219 1687 __dev_notify_flags(dev, old_flags, ~0U);
3729d502
PM		 1688 return 0;
1689}
1690EXPORT_SYMBOL(rtnl_configure_link);
1691
c0713563 1692struct net_device *rtnl_create_link(struct net *net,
81adee47 1693 char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[])
e7199288
PE		 1694{
1695 int err;
1696 struct net_device *dev;
d40156aa
JP		 1697 unsigned int num_tx_queues = 1;
1698 unsigned int num_rx_queues = 1;
e7199288 1699
76ff5cc9
JP		 1700 if (tb[IFLA_NUM_TX_QUEUES])
1701 num_tx_queues = nla_get_u32(tb[IFLA_NUM_TX_QUEUES]);
1702 else if (ops->get_num_tx_queues)
d40156aa 1703 num_tx_queues = ops->get_num_tx_queues();
76ff5cc9
JP		 1704
1705 if (tb[IFLA_NUM_RX_QUEUES])
1706 num_rx_queues = nla_get_u32(tb[IFLA_NUM_RX_QUEUES]);
1707 else if (ops->get_num_rx_queues)
d40156aa 1708 num_rx_queues = ops->get_num_rx_queues();
efacb309 1709
e7199288 1710 err = -ENOMEM;
d40156aa
JP		 1711 dev = alloc_netdev_mqs(ops->priv_size, ifname, ops->setup,
1712 num_tx_queues, num_rx_queues);
e7199288
PE		 1713 if (!dev)
1714 goto err;
1715
81adee47
EB		 1716 dev_net_set(dev, net);
1717 dev->rtnl_link_ops = ops;
3729d502 1718 dev->rtnl_link_state = RTNL_LINK_INITIALIZING;
81adee47 1719
e7199288
PE		 1720 if (tb[IFLA_MTU])
1721 dev->mtu = nla_get_u32(tb[IFLA_MTU]);
2afb9b53 1722 if (tb[IFLA_ADDRESS]) {
e7199288
PE		 1723 memcpy(dev->dev_addr, nla_data(tb[IFLA_ADDRESS]),
1724 nla_len(tb[IFLA_ADDRESS]));
2afb9b53
JP		 1725 dev->addr_assign_type = NET_ADDR_SET;
1726 }
e7199288
PE		 1727 if (tb[IFLA_BROADCAST])
1728 memcpy(dev->broadcast, nla_data(tb[IFLA_BROADCAST]),
1729 nla_len(tb[IFLA_BROADCAST]));
1730 if (tb[IFLA_TXQLEN])
1731 dev->tx_queue_len = nla_get_u32(tb[IFLA_TXQLEN]);
1732 if (tb[IFLA_OPERSTATE])
93b2d4a2 1733 set_operstate(dev, nla_get_u8(tb[IFLA_OPERSTATE]));
e7199288
PE		 1734 if (tb[IFLA_LINKMODE])
1735 dev->link_mode = nla_get_u8(tb[IFLA_LINKMODE]);
ffa934f1
PM		 1736 if (tb[IFLA_GROUP])
1737 dev_set_group(dev, nla_get_u32(tb[IFLA_GROUP]));
e7199288
PE		 1738
1739 return dev;
1740
e7199288
PE		 1741err:
1742 return ERR_PTR(err);
1743}
e0d087af 1744EXPORT_SYMBOL(rtnl_create_link);
e7199288 1745
e7ed828f
VD		 1746static int rtnl_group_changelink(struct net *net, int group,
1747 struct ifinfomsg *ifm,
1748 struct nlattr **tb)
1749{
1750 struct net_device *dev;
1751 int err;
1752
1753 for_each_netdev(net, dev) {
1754 if (dev->group == group) {
1755 err = do_setlink(dev, ifm, tb, NULL, 0);
1756 if (err < 0)
1757 return err;
1758 }
1759 }
1760
1761 return 0;
1762}
1763
661d2967 1764static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh)
38f7b870 1765{
3b1e0a65 1766 struct net *net = sock_net(skb->sk);
38f7b870
PM		 1767 const struct rtnl_link_ops *ops;
1768 struct net_device *dev;
1769 struct ifinfomsg *ifm;
1770 char kind[MODULE_NAME_LEN];
1771 char ifname[IFNAMSIZ];
1772 struct nlattr *tb[IFLA_MAX+1];
1773 struct nlattr *linkinfo[IFLA_INFO_MAX+1];
1774 int err;
1775
95a5afca 1776#ifdef CONFIG_MODULES
38f7b870 1777replay:
8072f085 1778#endif
38f7b870
PM		 1779 err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
1780 if (err < 0)
1781 return err;
1782
1783 if (tb[IFLA_IFNAME])
1784 nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
1785 else
1786 ifname[0] = '\0';
1787
1788 ifm = nlmsg_data(nlh);
1789 if (ifm->ifi_index > 0)
881d966b 1790 dev = __dev_get_by_index(net, ifm->ifi_index);
e7ed828f
VD		 1791 else {
1792 if (ifname[0])
1793 dev = __dev_get_by_name(net, ifname);
e7ed828f
VD		 1794 else
1795 dev = NULL;
1796 }
38f7b870 1797
e0d087af
ED		 1798 err = validate_linkmsg(dev, tb);
1799 if (err < 0)
1840bb13
TG		 1800 return err;
1801
38f7b870
PM		 1802 if (tb[IFLA_LINKINFO]) {
1803 err = nla_parse_nested(linkinfo, IFLA_INFO_MAX,
1804 tb[IFLA_LINKINFO], ifla_info_policy);
1805 if (err < 0)
1806 return err;
1807 } else
1808 memset(linkinfo, 0, sizeof(linkinfo));
1809
1810 if (linkinfo[IFLA_INFO_KIND]) {
1811 nla_strlcpy(kind, linkinfo[IFLA_INFO_KIND], sizeof(kind));
1812 ops = rtnl_link_ops_get(kind);
1813 } else {
1814 kind[0] = '\0';
1815 ops = NULL;
1816 }
1817
1818 if (1) {
1819 struct nlattr *attr[ops ? ops->maxtype + 1 : 0], **data = NULL;
81adee47 1820 struct net *dest_net;
38f7b870
PM		 1821
1822 if (ops) {
1823 if (ops->maxtype && linkinfo[IFLA_INFO_DATA]) {
1824 err = nla_parse_nested(attr, ops->maxtype,
1825 linkinfo[IFLA_INFO_DATA],
1826 ops->policy);
1827 if (err < 0)
1828 return err;
1829 data = attr;
1830 }
1831 if (ops->validate) {
1832 err = ops->validate(tb, data);
1833 if (err < 0)
1834 return err;
1835 }
1836 }
1837
1838 if (dev) {
1839 int modified = 0;
1840
1841 if (nlh->nlmsg_flags & NLM_F_EXCL)
1842 return -EEXIST;
1843 if (nlh->nlmsg_flags & NLM_F_REPLACE)
1844 return -EOPNOTSUPP;
1845
1846 if (linkinfo[IFLA_INFO_DATA]) {
1847 if (!ops || ops != dev->rtnl_link_ops ||
1848 !ops->changelink)
1849 return -EOPNOTSUPP;
1850
1851 err = ops->changelink(dev, tb, data);
1852 if (err < 0)
1853 return err;
1854 modified = 1;
1855 }
1856
1857 return do_setlink(dev, ifm, tb, ifname, modified);
1858 }
1859
ffa934f1
PM		 1860 if (!(nlh->nlmsg_flags & NLM_F_CREATE)) {
1861 if (ifm->ifi_index == 0 && tb[IFLA_GROUP])
1862 return rtnl_group_changelink(net,
1863 nla_get_u32(tb[IFLA_GROUP]),
1864 ifm, tb);
38f7b870 1865 return -ENODEV;
ffa934f1 1866 }
38f7b870 1867
0e06877c 1868 if (tb[IFLA_MAP] || tb[IFLA_MASTER] || tb[IFLA_PROTINFO])
38f7b870
PM		 1869 return -EOPNOTSUPP;
1870
1871 if (!ops) {
95a5afca 1872#ifdef CONFIG_MODULES
38f7b870
PM		 1873 if (kind[0]) {
1874 __rtnl_unlock();
1875 request_module("rtnl-link-%s", kind);
1876 rtnl_lock();
1877 ops = rtnl_link_ops_get(kind);
1878 if (ops)
1879 goto replay;
1880 }
1881#endif
1882 return -EOPNOTSUPP;
1883 }
1884
1885 if (!ifname[0])
1886 snprintf(ifname, IFNAMSIZ, "%s%%d", ops->kind);
e7199288 1887
81adee47 1888 dest_net = rtnl_link_get_net(net, tb);
13ad1774
EB		 1889 if (IS_ERR(dest_net))
1890 return PTR_ERR(dest_net);
1891
c0713563 1892 dev = rtnl_create_link(dest_net, ifname, ops, tb);
9c7dafbf 1893 if (IS_ERR(dev)) {
e7199288 1894 err = PTR_ERR(dev);
9c7dafbf
PE		 1895 goto out;
1896 }
1897
1898 dev->ifindex = ifm->ifi_index;
1899
1900 if (ops->newlink)
81adee47 1901 err = ops->newlink(net, dev, tb, data);
2d85cba2
PM		 1902 else
1903 err = register_netdevice(dev);
80032cff 1904
fce9b9be 1905 if (err < 0) {
38f7b870 1906 free_netdev(dev);
3729d502 1907 goto out;
fce9b9be 1908 }
81adee47 1909
3729d502
PM		 1910 err = rtnl_configure_link(dev, ifm);
1911 if (err < 0)
1912 unregister_netdevice(dev);
1913out:
81adee47 1914 put_net(dest_net);
38f7b870
PM		 1915 return err;
1916 }
1917}
1918
661d2967 1919static int rtnl_getlink(struct sk_buff *skb, struct nlmsghdr* nlh)
711e2c33 1920{
3b1e0a65 1921 struct net *net = sock_net(skb->sk);
b60c5115 1922 struct ifinfomsg *ifm;
a3d12891 1923 char ifname[IFNAMSIZ];
b60c5115
TG		 1924 struct nlattr *tb[IFLA_MAX+1];
1925 struct net_device *dev = NULL;
1926 struct sk_buff *nskb;
339bf98f 1927 int err;
115c9b81 1928 u32 ext_filter_mask = 0;
711e2c33 1929
b60c5115
TG		 1930 err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
1931 if (err < 0)
9918f230 1932 return err;
b60c5115 1933
a3d12891
ED		 1934 if (tb[IFLA_IFNAME])
1935 nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
1936
115c9b81
GR		 1937 if (tb[IFLA_EXT_MASK])
1938 ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);
1939
b60c5115 1940 ifm = nlmsg_data(nlh);
a3d12891
ED		 1941 if (ifm->ifi_index > 0)
1942 dev = __dev_get_by_index(net, ifm->ifi_index);
1943 else if (tb[IFLA_IFNAME])
1944 dev = __dev_get_by_name(net, ifname);
1945 else
711e2c33 1946 return -EINVAL;
711e2c33 1947
a3d12891
ED		 1948 if (dev == NULL)
1949 return -ENODEV;
1950
115c9b81 1951 nskb = nlmsg_new(if_nlmsg_size(dev, ext_filter_mask), GFP_KERNEL);
a3d12891
ED		 1952 if (nskb == NULL)
1953 return -ENOBUFS;
b60c5115 1954
15e47304 1955 err = rtnl_fill_ifinfo(nskb, dev, RTM_NEWLINK, NETLINK_CB(skb).portid,
115c9b81 1956 nlh->nlmsg_seq, 0, 0, ext_filter_mask);
26932566
PM		 1957 if (err < 0) {
1958 /* -EMSGSIZE implies BUG in if_nlmsg_size */
1959 WARN_ON(err == -EMSGSIZE);
1960 kfree_skb(nskb);
a3d12891 1961 } else
15e47304 1962 err = rtnl_unicast(nskb, net, NETLINK_CB(skb).portid);
711e2c33 1963
b60c5115 1964 return err;
711e2c33 1965}
711e2c33 1966
115c9b81 1967static u16 rtnl_calcit(struct sk_buff *skb, struct nlmsghdr *nlh)
c7ac8679 1968{
115c9b81
GR		 1969 struct net *net = sock_net(skb->sk);
1970 struct net_device *dev;
1971 struct nlattr *tb[IFLA_MAX+1];
1972 u32 ext_filter_mask = 0;
1973 u16 min_ifinfo_dump_size = 0;
1974
88c5b5ce 1975 if (nlmsg_parse(nlh, sizeof(struct ifinfomsg), tb, IFLA_MAX,
a4b64fbe
ED		 1976 ifla_policy) >= 0) {
1977 if (tb[IFLA_EXT_MASK])
1978 ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);
1979 }
115c9b81
GR		 1980
1981 if (!ext_filter_mask)
1982 return NLMSG_GOODSIZE;
1983 /*
1984 * traverse the list of net devices and compute the minimum
1985 * buffer size based upon the filter mask.
1986 */
1987 list_for_each_entry(dev, &net->dev_base_head, dev_list) {
1988 min_ifinfo_dump_size = max_t(u16, min_ifinfo_dump_size,
1989 if_nlmsg_size(dev,
1990 ext_filter_mask));
1991 }
1992
c7ac8679
GR		 1993 return min_ifinfo_dump_size;
1994}
1995
42bad1da 1996static int rtnl_dump_all(struct sk_buff *skb, struct netlink_callback *cb)
1da177e4
LT		 1997{
1998 int idx;
1999 int s_idx = cb->family;
2000
2001 if (s_idx == 0)
2002 s_idx = 1;
25239cee 2003 for (idx = 1; idx <= RTNL_FAMILY_MAX; idx++) {
1da177e4
LT		 2004 int type = cb->nlh->nlmsg_type-RTM_BASE;
2005 if (idx < s_idx || idx == PF_PACKET)
2006 continue;
e2849863
TG		 2007 if (rtnl_msg_handlers[idx] == NULL ||
2008 rtnl_msg_handlers[idx][type].dumpit == NULL)
1da177e4 2009 continue;
0465277f 2010 if (idx > s_idx) {
1da177e4 2011 memset(&cb->args[0], 0, sizeof(cb->args));
0465277f
ND		 2012 cb->prev_seq = 0;
2013 cb->seq = 0;
2014 }
e2849863 2015 if (rtnl_msg_handlers[idx][type].dumpit(skb, cb))
1da177e4
LT		 2016 break;
2017 }
2018 cb->family = idx;
2019
2020 return skb->len;
2021}
2022
7f294054
AS		 2023void rtmsg_ifinfo(int type, struct net_device *dev, unsigned int change,
2024 gfp_t flags)
1da177e4 2025{
c346dca1 2026 struct net *net = dev_net(dev);
1da177e4 2027 struct sk_buff *skb;
0ec6d3f4 2028 int err = -ENOBUFS;
c7ac8679 2029 size_t if_info_size;
1da177e4 2030
7f294054 2031 skb = nlmsg_new((if_info_size = if_nlmsg_size(dev, 0)), flags);
0ec6d3f4
TG		 2032 if (skb == NULL)
2033 goto errout;
1da177e4 2034
115c9b81 2035 err = rtnl_fill_ifinfo(skb, dev, type, 0, 0, change, 0, 0);
26932566
PM		 2036 if (err < 0) {
2037 /* -EMSGSIZE implies BUG in if_nlmsg_size() */
2038 WARN_ON(err == -EMSGSIZE);
2039 kfree_skb(skb);
2040 goto errout;
2041 }
7f294054 2042 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, flags);
1ce85fe4 2043 return;
0ec6d3f4
TG		 2044errout:
2045 if (err < 0)
4b3da706 2046 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
1da177e4 2047}
471cb5a3 2048EXPORT_SYMBOL(rtmsg_ifinfo);
1da177e4 2049
d83b0603
JF		 2050static int nlmsg_populate_fdb_fill(struct sk_buff *skb,
2051 struct net_device *dev,
2052 u8 *addr, u32 pid, u32 seq,
2053 int type, unsigned int flags)
2054{
2055 struct nlmsghdr *nlh;
2056 struct ndmsg *ndm;
2057
2058 nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ndm), NLM_F_MULTI);
2059 if (!nlh)
2060 return -EMSGSIZE;
2061
2062 ndm = nlmsg_data(nlh);
2063 ndm->ndm_family = AF_BRIDGE;
2064 ndm->ndm_pad1 = 0;
2065 ndm->ndm_pad2 = 0;
2066 ndm->ndm_flags = flags;
2067 ndm->ndm_type = 0;
2068 ndm->ndm_ifindex = dev->ifindex;
2069 ndm->ndm_state = NUD_PERMANENT;
2070
2071 if (nla_put(skb, NDA_LLADDR, ETH_ALEN, addr))
2072 goto nla_put_failure;
2073
2074 return nlmsg_end(skb, nlh);
2075
2076nla_put_failure:
2077 nlmsg_cancel(skb, nlh);
2078 return -EMSGSIZE;
2079}
2080
3ff661c3
JF		 2081static inline size_t rtnl_fdb_nlmsg_size(void)
2082{
2083 return NLMSG_ALIGN(sizeof(struct ndmsg)) + nla_total_size(ETH_ALEN);
2084}
2085
2086static void rtnl_fdb_notify(struct net_device *dev, u8 *addr, int type)
2087{
2088 struct net *net = dev_net(dev);
2089 struct sk_buff *skb;
2090 int err = -ENOBUFS;
2091
2092 skb = nlmsg_new(rtnl_fdb_nlmsg_size(), GFP_ATOMIC);
2093 if (!skb)
2094 goto errout;
2095
2096 err = nlmsg_populate_fdb_fill(skb, dev, addr, 0, 0, type, NTF_SELF);
2097 if (err < 0) {
2098 kfree_skb(skb);
2099 goto errout;
2100 }
2101
2102 rtnl_notify(skb, net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
2103 return;
2104errout:
2105 rtnl_set_sk_err(net, RTNLGRP_NEIGH, err);
2106}
2107
090096bf
VY		 2108/**
2109 * ndo_dflt_fdb_add - default netdevice operation to add an FDB entry
2110 */
2111int ndo_dflt_fdb_add(struct ndmsg *ndm,
2112 struct nlattr *tb[],
2113 struct net_device *dev,
2114 const unsigned char *addr,
2115 u16 flags)
2116{
2117 int err = -EINVAL;
2118
2119 /* If aging addresses are supported device will need to
2120 * implement its own handler for this.
2121 */
2122 if (ndm->ndm_state && !(ndm->ndm_state & NUD_PERMANENT)) {
2123 pr_info("%s: FDB only supports static addresses\n", dev->name);
2124 return err;
2125 }
2126
2127 if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr))
2128 err = dev_uc_add_excl(dev, addr);
2129 else if (is_multicast_ether_addr(addr))
2130 err = dev_mc_add_excl(dev, addr);
2131
2132 /* Only return duplicate errors if NLM_F_EXCL is set */
2133 if (err == -EEXIST && !(flags & NLM_F_EXCL))
2134 err = 0;
2135
2136 return err;
2137}
2138EXPORT_SYMBOL(ndo_dflt_fdb_add);
2139
661d2967 2140static int rtnl_fdb_add(struct sk_buff *skb, struct nlmsghdr *nlh)
77162022
JF		 2141{
2142 struct net *net = sock_net(skb->sk);
77162022
JF		 2143 struct ndmsg *ndm;
2144 struct nlattr *tb[NDA_MAX+1];
2145 struct net_device *dev;
2146 u8 *addr;
2147 int err;
2148
2149 err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
2150 if (err < 0)
2151 return err;
2152
2153 ndm = nlmsg_data(nlh);
2154 if (ndm->ndm_ifindex == 0) {
2155 pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid ifindex\n");
2156 return -EINVAL;
2157 }
2158
2159 dev = __dev_get_by_index(net, ndm->ndm_ifindex);
2160 if (dev == NULL) {
2161 pr_info("PF_BRIDGE: RTM_NEWNEIGH with unknown ifindex\n");
2162 return -ENODEV;
2163 }
2164
2165 if (!tb[NDA_LLADDR] || nla_len(tb[NDA_LLADDR]) != ETH_ALEN) {
2166 pr_info("PF_BRIDGE: RTM_NEWNEIGH with invalid address\n");
2167 return -EINVAL;
2168 }
2169
2170 addr = nla_data(tb[NDA_LLADDR]);
77162022
JF		 2171
2172 err = -EOPNOTSUPP;
2173
2174 /* Support fdb on master device the net/bridge default case */
2175 if ((!ndm->ndm_flags || ndm->ndm_flags & NTF_MASTER) &&
2176 (dev->priv_flags & IFF_BRIDGE_PORT)) {
898e5061
JP		 2177 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
2178 const struct net_device_ops *ops = br_dev->netdev_ops;
2179
2180 err = ops->ndo_fdb_add(ndm, tb, dev, addr, nlh->nlmsg_flags);
77162022
JF		 2181 if (err)
2182 goto out;
2183 else
2184 ndm->ndm_flags &= ~NTF_MASTER;
2185 }
2186
2187 /* Embedded bridge, macvlan, and any other device support */
090096bf
VY		 2188 if ((ndm->ndm_flags & NTF_SELF)) {
2189 if (dev->netdev_ops->ndo_fdb_add)
2190 err = dev->netdev_ops->ndo_fdb_add(ndm, tb, dev, addr,
2191 nlh->nlmsg_flags);
2192 else
2193 err = ndo_dflt_fdb_add(ndm, tb, dev, addr,
2194 nlh->nlmsg_flags);
77162022 2195
3ff661c3
JF		 2196 if (!err) {
2197 rtnl_fdb_notify(dev, addr, RTM_NEWNEIGH);
77162022 2198 ndm->ndm_flags &= ~NTF_SELF;
3ff661c3 2199 }
77162022
JF		 2200 }
2201out:
2202 return err;
2203}
2204
090096bf
VY		 2205/**
2206 * ndo_dflt_fdb_del - default netdevice operation to delete an FDB entry
2207 */
2208int ndo_dflt_fdb_del(struct ndmsg *ndm,
2209 struct nlattr *tb[],
2210 struct net_device *dev,
2211 const unsigned char *addr)
2212{
2213 int err = -EOPNOTSUPP;
2214
2215 /* If aging addresses are supported device will need to
2216 * implement its own handler for this.
2217 */
64535993 2218 if (!(ndm->ndm_state & NUD_PERMANENT)) {
090096bf
VY		 2219 pr_info("%s: FDB only supports static addresses\n", dev->name);
2220 return -EINVAL;
2221 }
2222
2223 if (is_unicast_ether_addr(addr) || is_link_local_ether_addr(addr))
2224 err = dev_uc_del(dev, addr);
2225 else if (is_multicast_ether_addr(addr))
2226 err = dev_mc_del(dev, addr);
2227 else
2228 err = -EINVAL;
2229
2230 return err;
2231}
2232EXPORT_SYMBOL(ndo_dflt_fdb_del);
2233
661d2967 2234static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh)
77162022
JF		 2235{
2236 struct net *net = sock_net(skb->sk);
2237 struct ndmsg *ndm;
1690be63 2238 struct nlattr *tb[NDA_MAX+1];
77162022
JF		 2239 struct net_device *dev;
2240 int err = -EINVAL;
2241 __u8 *addr;
2242
1690be63
VY		 2243 if (!capable(CAP_NET_ADMIN))
2244 return -EPERM;
2245
2246 err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
2247 if (err < 0)
2248 return err;
77162022
JF		 2249
2250 ndm = nlmsg_data(nlh);
2251 if (ndm->ndm_ifindex == 0) {
2252 pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid ifindex\n");
2253 return -EINVAL;
2254 }
2255
2256 dev = __dev_get_by_index(net, ndm->ndm_ifindex);
2257 if (dev == NULL) {
2258 pr_info("PF_BRIDGE: RTM_DELNEIGH with unknown ifindex\n");
2259 return -ENODEV;
2260 }
2261
1690be63
VY		 2262 if (!tb[NDA_LLADDR] || nla_len(tb[NDA_LLADDR]) != ETH_ALEN) {
2263 pr_info("PF_BRIDGE: RTM_DELNEIGH with invalid address\n");
2264 return -EINVAL;
2265 }
2266
2267 addr = nla_data(tb[NDA_LLADDR]);
77162022 2268
77162022
JF		 2269 err = -EOPNOTSUPP;
2270
2271 /* Support fdb on master device the net/bridge default case */
2272 if ((!ndm->ndm_flags || ndm->ndm_flags & NTF_MASTER) &&
2273 (dev->priv_flags & IFF_BRIDGE_PORT)) {
898e5061
JP		 2274 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
2275 const struct net_device_ops *ops = br_dev->netdev_ops;
77162022 2276
898e5061 2277 if (ops->ndo_fdb_del)
1690be63 2278 err = ops->ndo_fdb_del(ndm, tb, dev, addr);
77162022
JF		 2279
2280 if (err)
2281 goto out;
2282 else
2283 ndm->ndm_flags &= ~NTF_MASTER;
2284 }
2285
2286 /* Embedded bridge, macvlan, and any other device support */
090096bf
VY		 2287 if (ndm->ndm_flags & NTF_SELF) {
2288 if (dev->netdev_ops->ndo_fdb_del)
2289 err = dev->netdev_ops->ndo_fdb_del(ndm, tb, dev, addr);
2290 else
2291 err = ndo_dflt_fdb_del(ndm, tb, dev, addr);
77162022 2292
3ff661c3
JF		 2293 if (!err) {
2294 rtnl_fdb_notify(dev, addr, RTM_DELNEIGH);
77162022 2295 ndm->ndm_flags &= ~NTF_SELF;
3ff661c3 2296 }
77162022
JF		 2297 }
2298out:
2299 return err;
2300}
2301
d83b0603
JF		 2302static int nlmsg_populate_fdb(struct sk_buff *skb,
2303 struct netlink_callback *cb,
2304 struct net_device *dev,
2305 int *idx,
2306 struct netdev_hw_addr_list *list)
2307{
2308 struct netdev_hw_addr *ha;
2309 int err;
15e47304 2310 u32 portid, seq;
d83b0603 2311
15e47304 2312 portid = NETLINK_CB(cb->skb).portid;
d83b0603
JF		 2313 seq = cb->nlh->nlmsg_seq;
2314
2315 list_for_each_entry(ha, &list->list, list) {
2316 if (*idx < cb->args[0])
2317 goto skip;
2318
2319 err = nlmsg_populate_fdb_fill(skb, dev, ha->addr,
a7a558fe
JF		 2320 portid, seq,
2321 RTM_NEWNEIGH, NTF_SELF);
d83b0603
JF		 2322 if (err < 0)
2323 return err;
2324skip:
2325 *idx += 1;
2326 }
2327 return 0;
2328}
2329
2330/**
2c53040f 2331 * ndo_dflt_fdb_dump - default netdevice operation to dump an FDB table.
d83b0603
JF		 2332 * @nlh: netlink message header
2333 * @dev: netdevice
2334 *
2335 * Default netdevice operation to dump the existing unicast address list.
91f3e7b1 2336 * Returns number of addresses from list put in skb.
d83b0603
JF		 2337 */
2338int ndo_dflt_fdb_dump(struct sk_buff *skb,
2339 struct netlink_callback *cb,
2340 struct net_device *dev,
2341 int idx)
2342{
2343 int err;
2344
2345 netif_addr_lock_bh(dev);
2346 err = nlmsg_populate_fdb(skb, cb, dev, &idx, &dev->uc);
2347 if (err)
2348 goto out;
2349 nlmsg_populate_fdb(skb, cb, dev, &idx, &dev->mc);
2350out:
2351 netif_addr_unlock_bh(dev);
2352 return idx;
2353}
2354EXPORT_SYMBOL(ndo_dflt_fdb_dump);
2355
77162022
JF		 2356static int rtnl_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb)
2357{
2358 int idx = 0;
2359 struct net *net = sock_net(skb->sk);
2360 struct net_device *dev;
2361
2362 rcu_read_lock();
2363 for_each_netdev_rcu(net, dev) {
2364 if (dev->priv_flags & IFF_BRIDGE_PORT) {
898e5061
JP		 2365 struct net_device *br_dev;
2366 const struct net_device_ops *ops;
77162022 2367
898e5061
JP		 2368 br_dev = netdev_master_upper_dev_get(dev);
2369 ops = br_dev->netdev_ops;
77162022
JF		 2370 if (ops->ndo_fdb_dump)
2371 idx = ops->ndo_fdb_dump(skb, cb, dev, idx);
2372 }
2373
2374 if (dev->netdev_ops->ndo_fdb_dump)
2375 idx = dev->netdev_ops->ndo_fdb_dump(skb, cb, dev, idx);
090096bf 2376 else
91f3e7b1 2377 idx = ndo_dflt_fdb_dump(skb, cb, dev, idx);
77162022
JF		 2378 }
2379 rcu_read_unlock();
2380
2381 cb->args[0] = idx;
2382 return skb->len;
2383}
2384
815cccbf
JF		 2385int ndo_dflt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
2386 struct net_device *dev, u16 mode)
2387{
2388 struct nlmsghdr *nlh;
2389 struct ifinfomsg *ifm;
2390 struct nlattr *br_afspec;
2391 u8 operstate = netif_running(dev) ? dev->operstate : IF_OPER_DOWN;
898e5061 2392 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
815cccbf
JF		 2393
2394 nlh = nlmsg_put(skb, pid, seq, RTM_NEWLINK, sizeof(*ifm), NLM_F_MULTI);
2395 if (nlh == NULL)
2396 return -EMSGSIZE;
2397
2398 ifm = nlmsg_data(nlh);
2399 ifm->ifi_family = AF_BRIDGE;
2400 ifm->__ifi_pad = 0;
2401 ifm->ifi_type = dev->type;
2402 ifm->ifi_index = dev->ifindex;
2403 ifm->ifi_flags = dev_get_flags(dev);
2404 ifm->ifi_change = 0;
2405
2406
2407 if (nla_put_string(skb, IFLA_IFNAME, dev->name) ||
2408 nla_put_u32(skb, IFLA_MTU, dev->mtu) ||
2409 nla_put_u8(skb, IFLA_OPERSTATE, operstate) ||
898e5061
JP		 2410 (br_dev &&
2411 nla_put_u32(skb, IFLA_MASTER, br_dev->ifindex)) ||
815cccbf
JF		 2412 (dev->addr_len &&
2413 nla_put(skb, IFLA_ADDRESS, dev->addr_len, dev->dev_addr)) ||
2414 (dev->ifindex != dev->iflink &&
2415 nla_put_u32(skb, IFLA_LINK, dev->iflink)))
2416 goto nla_put_failure;
2417
2418 br_afspec = nla_nest_start(skb, IFLA_AF_SPEC);
2419 if (!br_afspec)
2420 goto nla_put_failure;
2421
2422 if (nla_put_u16(skb, IFLA_BRIDGE_FLAGS, BRIDGE_FLAGS_SELF) ||
2423 nla_put_u16(skb, IFLA_BRIDGE_MODE, mode)) {
2424 nla_nest_cancel(skb, br_afspec);
2425 goto nla_put_failure;
2426 }
2427 nla_nest_end(skb, br_afspec);
2428
2429 return nlmsg_end(skb, nlh);
2430nla_put_failure:
2431 nlmsg_cancel(skb, nlh);
2432 return -EMSGSIZE;
2433}
2434EXPORT_SYMBOL(ndo_dflt_bridge_getlink);
2435
e5a55a89
JF		 2436static int rtnl_bridge_getlink(struct sk_buff *skb, struct netlink_callback *cb)
2437{
2438 struct net *net = sock_net(skb->sk);
2439 struct net_device *dev;
2440 int idx = 0;
2441 u32 portid = NETLINK_CB(cb->skb).portid;
2442 u32 seq = cb->nlh->nlmsg_seq;
6cbdceeb
VY		 2443 struct nlattr *extfilt;
2444 u32 filter_mask = 0;
2445
3e805ad2 2446 extfilt = nlmsg_find_attr(cb->nlh, sizeof(struct ifinfomsg),
6cbdceeb
VY		 2447 IFLA_EXT_MASK);
2448 if (extfilt)
2449 filter_mask = nla_get_u32(extfilt);
e5a55a89
JF		 2450
2451 rcu_read_lock();
2452 for_each_netdev_rcu(net, dev) {
2453 const struct net_device_ops *ops = dev->netdev_ops;
898e5061 2454 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
e5a55a89 2455
898e5061 2456 if (br_dev && br_dev->netdev_ops->ndo_bridge_getlink) {
25b1e679 2457 if (idx >= cb->args[0] &&
898e5061 2458 br_dev->netdev_ops->ndo_bridge_getlink(
6cbdceeb 2459 skb, portid, seq, dev, filter_mask) < 0)
e5a55a89 2460 break;
25b1e679 2461 idx++;
e5a55a89
JF		 2462 }
2463
2464 if (ops->ndo_bridge_getlink) {
25b1e679 2465 if (idx >= cb->args[0] &&
6cbdceeb
VY		 2466 ops->ndo_bridge_getlink(skb, portid, seq, dev,
2467 filter_mask) < 0)
e5a55a89 2468 break;
25b1e679 2469 idx++;
e5a55a89
JF		 2470 }
2471 }
2472 rcu_read_unlock();
2473 cb->args[0] = idx;
2474
2475 return skb->len;
2476}
2477
2469ffd7
JF		 2478static inline size_t bridge_nlmsg_size(void)
2479{
2480 return NLMSG_ALIGN(sizeof(struct ifinfomsg))
2481 + nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
2482 + nla_total_size(MAX_ADDR_LEN) /* IFLA_ADDRESS */
2483 + nla_total_size(sizeof(u32)) /* IFLA_MASTER */
2484 + nla_total_size(sizeof(u32)) /* IFLA_MTU */
2485 + nla_total_size(sizeof(u32)) /* IFLA_LINK */
2486 + nla_total_size(sizeof(u32)) /* IFLA_OPERSTATE */
2487 + nla_total_size(sizeof(u8)) /* IFLA_PROTINFO */
2488 + nla_total_size(sizeof(struct nlattr)) /* IFLA_AF_SPEC */
2489 + nla_total_size(sizeof(u16)) /* IFLA_BRIDGE_FLAGS */
2490 + nla_total_size(sizeof(u16)); /* IFLA_BRIDGE_MODE */
2491}
2492
2493static int rtnl_bridge_notify(struct net_device *dev, u16 flags)
2494{
2495 struct net *net = dev_net(dev);
898e5061 2496 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
2469ffd7
JF		 2497 struct sk_buff *skb;
2498 int err = -EOPNOTSUPP;
2499
2500 skb = nlmsg_new(bridge_nlmsg_size(), GFP_ATOMIC);
2501 if (!skb) {
2502 err = -ENOMEM;
2503 goto errout;
2504 }
2505
c38e01b8 2506 if ((!flags || (flags & BRIDGE_FLAGS_MASTER)) &&
898e5061 2507 br_dev && br_dev->netdev_ops->ndo_bridge_getlink) {
6cbdceeb 2508 err = br_dev->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev, 0);
c38e01b8
JF		 2509 if (err < 0)
2510 goto errout;
2511 }
2469ffd7 2512
c38e01b8
JF		 2513 if ((flags & BRIDGE_FLAGS_SELF) &&
2514 dev->netdev_ops->ndo_bridge_getlink) {
6cbdceeb 2515 err = dev->netdev_ops->ndo_bridge_getlink(skb, 0, 0, dev, 0);
c38e01b8
JF		 2516 if (err < 0)
2517 goto errout;
2518 }
2469ffd7
JF		 2519
2520 rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
2521 return 0;
2522errout:
2523 WARN_ON(err == -EMSGSIZE);
2524 kfree_skb(skb);
2525 rtnl_set_sk_err(net, RTNLGRP_LINK, err);
2526 return err;
2527}
2528
661d2967 2529static int rtnl_bridge_setlink(struct sk_buff *skb, struct nlmsghdr *nlh)
e5a55a89
JF		 2530{
2531 struct net *net = sock_net(skb->sk);
2532 struct ifinfomsg *ifm;
2533 struct net_device *dev;
2469ffd7
JF		 2534 struct nlattr *br_spec, *attr = NULL;
2535 int rem, err = -EOPNOTSUPP;
c38e01b8
JF		 2536 u16 oflags, flags = 0;
2537 bool have_flags = false;
e5a55a89
JF		 2538
2539 if (nlmsg_len(nlh) < sizeof(*ifm))
2540 return -EINVAL;
2541
2542 ifm = nlmsg_data(nlh);
2543 if (ifm->ifi_family != AF_BRIDGE)
2544 return -EPFNOSUPPORT;
2545
2546 dev = __dev_get_by_index(net, ifm->ifi_index);
2547 if (!dev) {
2548 pr_info("PF_BRIDGE: RTM_SETLINK with unknown ifindex\n");
2549 return -ENODEV;
2550 }
2551
2469ffd7
JF		 2552 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
2553 if (br_spec) {
2554 nla_for_each_nested(attr, br_spec, rem) {
2555 if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
c38e01b8 2556 have_flags = true;
2469ffd7
JF		 2557 flags = nla_get_u16(attr);
2558 break;
2559 }
2560 }
2561 }
2562
c38e01b8
JF		 2563 oflags = flags;
2564
2469ffd7 2565 if (!flags || (flags & BRIDGE_FLAGS_MASTER)) {
898e5061
JP		 2566 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
2567
2568 if (!br_dev || !br_dev->netdev_ops->ndo_bridge_setlink) {
2469ffd7
JF		 2569 err = -EOPNOTSUPP;
2570 goto out;
2571 }
2572
898e5061 2573 err = br_dev->netdev_ops->ndo_bridge_setlink(dev, nlh);
e5a55a89
JF		 2574 if (err)
2575 goto out;
2469ffd7
JF		 2576
2577 flags &= ~BRIDGE_FLAGS_MASTER;
e5a55a89
JF		 2578 }
2579
2469ffd7
JF		 2580 if ((flags & BRIDGE_FLAGS_SELF)) {
2581 if (!dev->netdev_ops->ndo_bridge_setlink)
2582 err = -EOPNOTSUPP;
2583 else
2584 err = dev->netdev_ops->ndo_bridge_setlink(dev, nlh);
2585
2586 if (!err)
2587 flags &= ~BRIDGE_FLAGS_SELF;
2588 }
e5a55a89 2589
c38e01b8 2590 if (have_flags)
2469ffd7
JF		 2591 memcpy(nla_data(attr), &flags, sizeof(flags));
2592 /* Generate event to notify upper layer of bridge change */
2593 if (!err)
c38e01b8 2594 err = rtnl_bridge_notify(dev, oflags);
e5a55a89
JF		 2595out:
2596 return err;
2597}
2598
661d2967 2599static int rtnl_bridge_dellink(struct sk_buff *skb, struct nlmsghdr *nlh)
407af329
VY		 2600{
2601 struct net *net = sock_net(skb->sk);
2602 struct ifinfomsg *ifm;
2603 struct net_device *dev;
2604 struct nlattr *br_spec, *attr = NULL;
2605 int rem, err = -EOPNOTSUPP;
2606 u16 oflags, flags = 0;
2607 bool have_flags = false;
2608
2609 if (nlmsg_len(nlh) < sizeof(*ifm))
2610 return -EINVAL;
2611
2612 ifm = nlmsg_data(nlh);
2613 if (ifm->ifi_family != AF_BRIDGE)
2614 return -EPFNOSUPPORT;
2615
2616 dev = __dev_get_by_index(net, ifm->ifi_index);
2617 if (!dev) {
2618 pr_info("PF_BRIDGE: RTM_SETLINK with unknown ifindex\n");
2619 return -ENODEV;
2620 }
2621
2622 br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);
2623 if (br_spec) {
2624 nla_for_each_nested(attr, br_spec, rem) {
2625 if (nla_type(attr) == IFLA_BRIDGE_FLAGS) {
2626 have_flags = true;
2627 flags = nla_get_u16(attr);
2628 break;
2629 }
2630 }
2631 }
2632
2633 oflags = flags;
2634
2635 if (!flags || (flags & BRIDGE_FLAGS_MASTER)) {
2636 struct net_device *br_dev = netdev_master_upper_dev_get(dev);
2637
2638 if (!br_dev || !br_dev->netdev_ops->ndo_bridge_dellink) {
2639 err = -EOPNOTSUPP;
2640 goto out;
2641 }
2642
2643 err = br_dev->netdev_ops->ndo_bridge_dellink(dev, nlh);
2644 if (err)
2645 goto out;
2646
2647 flags &= ~BRIDGE_FLAGS_MASTER;
2648 }
2649
2650 if ((flags & BRIDGE_FLAGS_SELF)) {
2651 if (!dev->netdev_ops->ndo_bridge_dellink)
2652 err = -EOPNOTSUPP;
2653 else
2654 err = dev->netdev_ops->ndo_bridge_dellink(dev, nlh);
2655
2656 if (!err)
2657 flags &= ~BRIDGE_FLAGS_SELF;
2658 }
2659
2660 if (have_flags)
2661 memcpy(nla_data(attr), &flags, sizeof(flags));
2662 /* Generate event to notify upper layer of bridge change */
2663 if (!err)
2664 err = rtnl_bridge_notify(dev, oflags);
2665out:
2666 return err;
2667}
2668
1da177e4
LT		 2669/* Process one rtnetlink message. */
2670
1d00a4eb 2671static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
1da177e4 2672{
3b1e0a65 2673 struct net *net = sock_net(skb->sk);
e2849863 2674 rtnl_doit_func doit;
1da177e4 2675 int sz_idx, kind;
1da177e4
LT		 2676 int family;
2677 int type;
2907c35f 2678 int err;
1da177e4 2679
1da177e4 2680 type = nlh->nlmsg_type;
1da177e4 2681 if (type > RTM_MAX)
038890fe 2682 return -EOPNOTSUPP;
1da177e4
LT		 2683
2684 type -= RTM_BASE;
2685
2686 /* All the messages must have at least 1 byte length */
573ce260 2687 if (nlmsg_len(nlh) < sizeof(struct rtgenmsg))
1da177e4
LT		 2688 return 0;
2689
573ce260 2690 family = ((struct rtgenmsg *)nlmsg_data(nlh))->rtgen_family;
1da177e4
LT		 2691 sz_idx = type>>2;
2692 kind = type&3;
2693
dfc47ef8 2694 if (kind != 2 && !ns_capable(net->user_ns, CAP_NET_ADMIN))
1d00a4eb 2695 return -EPERM;
1da177e4 2696
b8f3ab42 2697 if (kind == 2 && nlh->nlmsg_flags&NLM_F_DUMP) {
97c53cac 2698 struct sock *rtnl;
e2849863 2699 rtnl_dumpit_func dumpit;
c7ac8679
GR		 2700 rtnl_calcit_func calcit;
2701 u16 min_dump_alloc = 0;
1da177e4 2702
e2849863
TG		 2703 dumpit = rtnl_get_dumpit(family, type);
2704 if (dumpit == NULL)
038890fe 2705 return -EOPNOTSUPP;
c7ac8679
GR		 2706 calcit = rtnl_get_calcit(family, type);
2707 if (calcit)
115c9b81 2708 min_dump_alloc = calcit(skb, nlh);
9ac4a169 2709
2907c35f 2710 __rtnl_unlock();
97c53cac 2711 rtnl = net->rtnl;
80d326fa
PNA		 2712 {
2713 struct netlink_dump_control c = {
2714 .dump = dumpit,
2715 .min_dump_alloc = min_dump_alloc,
2716 };
2717 err = netlink_dump_start(rtnl, skb, nlh, &c);
2718 }
2907c35f
ED		 2719 rtnl_lock();
2720 return err;
1da177e4
LT		 2721 }
2722
e2849863
TG		 2723 doit = rtnl_get_doit(family, type);
2724 if (doit == NULL)
038890fe 2725 return -EOPNOTSUPP;
1da177e4 2726
661d2967 2727 return doit(skb, nlh);
1da177e4
LT		 2728}
2729
cd40b7d3 2730static void rtnetlink_rcv(struct sk_buff *skb)
1da177e4 2731{
cd40b7d3
DL		 2732 rtnl_lock();
2733 netlink_rcv_skb(skb, &rtnetlink_rcv_msg);
2734 rtnl_unlock();
1da177e4
LT		 2735}
2736
1da177e4
LT		 2737static int rtnetlink_event(struct notifier_block *this, unsigned long event, void *ptr)
2738{
351638e7 2739 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
e9dc8653 2740
1da177e4 2741 switch (event) {
1da177e4
LT		 2742 case NETDEV_UP:
2743 case NETDEV_DOWN:
10de05af 2744 case NETDEV_PRE_UP:
d90a909e
EB		 2745 case NETDEV_POST_INIT:
2746 case NETDEV_REGISTER:
1da177e4 2747 case NETDEV_CHANGE:
755d0e77 2748 case NETDEV_PRE_TYPE_CHANGE:
1da177e4 2749 case NETDEV_GOING_DOWN:
a2835763 2750 case NETDEV_UNREGISTER:
0115e8e3 2751 case NETDEV_UNREGISTER_FINAL:
ac3d3f81
AW		 2752 case NETDEV_RELEASE:
2753 case NETDEV_JOIN:
1da177e4
LT		 2754 break;
2755 default:
7f294054 2756 rtmsg_ifinfo(RTM_NEWLINK, dev, 0, GFP_KERNEL);
1da177e4
LT		 2757 break;
2758 }
2759 return NOTIFY_DONE;
2760}
2761
2762static struct notifier_block rtnetlink_dev_notifier = {
2763 .notifier_call = rtnetlink_event,
2764};
2765
97c53cac 2766
2c8c1e72 2767static int __net_init rtnetlink_net_init(struct net *net)
97c53cac
DL		 2768{
2769 struct sock *sk;
a31f2d17
PNA		 2770 struct netlink_kernel_cfg cfg = {
2771 .groups = RTNLGRP_MAX,
2772 .input = rtnetlink_rcv,
2773 .cb_mutex = &rtnl_mutex,
9785e10a 2774 .flags = NL_CFG_F_NONROOT_RECV,
a31f2d17
PNA		 2775 };
2776
9f00d977 2777 sk = netlink_kernel_create(net, NETLINK_ROUTE, &cfg);
97c53cac
DL		 2778 if (!sk)
2779 return -ENOMEM;
97c53cac
DL		 2780 net->rtnl = sk;
2781 return 0;
2782}
2783
2c8c1e72 2784static void __net_exit rtnetlink_net_exit(struct net *net)
97c53cac 2785{
775516bf
DL		 2786 netlink_kernel_release(net->rtnl);
2787 net->rtnl = NULL;
97c53cac
DL		 2788}
2789
2790static struct pernet_operations rtnetlink_net_ops = {
2791 .init = rtnetlink_net_init,
2792 .exit = rtnetlink_net_exit,
2793};
2794
1da177e4
LT		 2795void __init rtnetlink_init(void)
2796{
97c53cac 2797 if (register_pernet_subsys(&rtnetlink_net_ops))
1da177e4 2798 panic("rtnetlink_init: cannot initialize rtnetlink\n");
97c53cac 2799
1da177e4 2800 register_netdevice_notifier(&rtnetlink_dev_notifier);
340d17fc 2801
c7ac8679
GR		 2802 rtnl_register(PF_UNSPEC, RTM_GETLINK, rtnl_getlink,
2803 rtnl_dump_ifinfo, rtnl_calcit);
2804 rtnl_register(PF_UNSPEC, RTM_SETLINK, rtnl_setlink, NULL, NULL);
2805 rtnl_register(PF_UNSPEC, RTM_NEWLINK, rtnl_newlink, NULL, NULL);
2806 rtnl_register(PF_UNSPEC, RTM_DELLINK, rtnl_dellink, NULL, NULL);
687ad8cc 2807
c7ac8679
GR		 2808 rtnl_register(PF_UNSPEC, RTM_GETADDR, NULL, rtnl_dump_all, NULL);
2809 rtnl_register(PF_UNSPEC, RTM_GETROUTE, NULL, rtnl_dump_all, NULL);
77162022
JF		 2810
2811 rtnl_register(PF_BRIDGE, RTM_NEWNEIGH, rtnl_fdb_add, NULL, NULL);
2812 rtnl_register(PF_BRIDGE, RTM_DELNEIGH, rtnl_fdb_del, NULL, NULL);
2813 rtnl_register(PF_BRIDGE, RTM_GETNEIGH, NULL, rtnl_fdb_dump, NULL);
e5a55a89
JF		 2814
2815 rtnl_register(PF_BRIDGE, RTM_GETLINK, NULL, rtnl_bridge_getlink, NULL);
407af329 2816 rtnl_register(PF_BRIDGE, RTM_DELLINK, rtnl_bridge_dellink, NULL, NULL);
e5a55a89 2817 rtnl_register(PF_BRIDGE, RTM_SETLINK, rtnl_bridge_setlink, NULL, NULL);
1da177e4
LT		 2818}
2819
Linux kernel - Deliverables
This page took 0.959284 seconds and 5 git commands to generate.