if.c revision 1.206 1 1.206 dyoung /* $NetBSD: if.c,v 1.206 2007/12/05 23:47:17 dyoung Exp $ */
2 1.53 thorpej
3 1.53 thorpej /*-
4 1.89 thorpej * Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc.
5 1.53 thorpej * All rights reserved.
6 1.53 thorpej *
7 1.53 thorpej * This code is derived from software contributed to The NetBSD Foundation
8 1.150 peter * by William Studenmund and Jason R. Thorpe.
9 1.53 thorpej *
10 1.53 thorpej * Redistribution and use in source and binary forms, with or without
11 1.53 thorpej * modification, are permitted provided that the following conditions
12 1.53 thorpej * are met:
13 1.53 thorpej * 1. Redistributions of source code must retain the above copyright
14 1.53 thorpej * notice, this list of conditions and the following disclaimer.
15 1.53 thorpej * 2. Redistributions in binary form must reproduce the above copyright
16 1.53 thorpej * notice, this list of conditions and the following disclaimer in the
17 1.53 thorpej * documentation and/or other materials provided with the distribution.
18 1.53 thorpej * 3. All advertising materials mentioning features or use of this software
19 1.53 thorpej * must display the following acknowledgement:
20 1.53 thorpej * This product includes software developed by the NetBSD
21 1.53 thorpej * Foundation, Inc. and its contributors.
22 1.53 thorpej * 4. Neither the name of The NetBSD Foundation nor the names of its
23 1.53 thorpej * contributors may be used to endorse or promote products derived
24 1.53 thorpej * from this software without specific prior written permission.
25 1.53 thorpej *
26 1.53 thorpej * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 1.53 thorpej * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 1.53 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 1.53 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 1.53 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 1.53 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 1.53 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 1.53 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 1.53 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 1.53 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 1.53 thorpej * POSSIBILITY OF SUCH DAMAGE.
37 1.53 thorpej */
38 1.49 itojun
39 1.49 itojun /*
40 1.49 itojun * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
41 1.49 itojun * All rights reserved.
42 1.154 perry *
43 1.49 itojun * Redistribution and use in source and binary forms, with or without
44 1.49 itojun * modification, are permitted provided that the following conditions
45 1.49 itojun * are met:
46 1.49 itojun * 1. Redistributions of source code must retain the above copyright
47 1.49 itojun * notice, this list of conditions and the following disclaimer.
48 1.49 itojun * 2. Redistributions in binary form must reproduce the above copyright
49 1.49 itojun * notice, this list of conditions and the following disclaimer in the
50 1.49 itojun * documentation and/or other materials provided with the distribution.
51 1.49 itojun * 3. Neither the name of the project nor the names of its contributors
52 1.49 itojun * may be used to endorse or promote products derived from this software
53 1.49 itojun * without specific prior written permission.
54 1.154 perry *
55 1.49 itojun * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
56 1.49 itojun * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
57 1.49 itojun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
58 1.49 itojun * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
59 1.49 itojun * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
60 1.49 itojun * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
61 1.49 itojun * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
62 1.49 itojun * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
63 1.49 itojun * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
64 1.49 itojun * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
65 1.49 itojun * SUCH DAMAGE.
66 1.49 itojun */
67 1.16 cgd
68 1.1 cgd /*
69 1.15 mycroft * Copyright (c) 1980, 1986, 1993
70 1.15 mycroft * The Regents of the University of California. All rights reserved.
71 1.1 cgd *
72 1.1 cgd * Redistribution and use in source and binary forms, with or without
73 1.1 cgd * modification, are permitted provided that the following conditions
74 1.1 cgd * are met:
75 1.1 cgd * 1. Redistributions of source code must retain the above copyright
76 1.1 cgd * notice, this list of conditions and the following disclaimer.
77 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
78 1.1 cgd * notice, this list of conditions and the following disclaimer in the
79 1.1 cgd * documentation and/or other materials provided with the distribution.
80 1.126 agc * 3. Neither the name of the University nor the names of its contributors
81 1.1 cgd * may be used to endorse or promote products derived from this software
82 1.1 cgd * without specific prior written permission.
83 1.1 cgd *
84 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
85 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
86 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
87 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
88 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
89 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
90 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
91 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
92 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
93 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
94 1.1 cgd * SUCH DAMAGE.
95 1.1 cgd *
96 1.44 fvdl * @(#)if.c 8.5 (Berkeley) 1/9/95
97 1.1 cgd */
98 1.99 lukem
99 1.99 lukem #include <sys/cdefs.h>
100 1.206 dyoung __KERNEL_RCSID(0, "$NetBSD: if.c,v 1.206 2007/12/05 23:47:17 dyoung Exp $");
101 1.50 thorpej
102 1.50 thorpej #include "opt_inet.h"
103 1.46 thorpej
104 1.51 bouyer #include "opt_atalk.h"
105 1.120 martin #include "opt_natm.h"
106 1.87 thorpej #include "opt_pfil_hooks.h"
107 1.1 cgd
108 1.8 mycroft #include <sys/param.h>
109 1.8 mycroft #include <sys/mbuf.h>
110 1.8 mycroft #include <sys/systm.h>
111 1.59 thorpej #include <sys/callout.h>
112 1.15 mycroft #include <sys/proc.h>
113 1.8 mycroft #include <sys/socket.h>
114 1.8 mycroft #include <sys/socketvar.h>
115 1.56 thorpej #include <sys/domain.h>
116 1.8 mycroft #include <sys/protosw.h>
117 1.8 mycroft #include <sys/kernel.h>
118 1.8 mycroft #include <sys/ioctl.h>
119 1.133 jonathan #include <sys/sysctl.h>
120 1.159 dyoung #include <sys/syslog.h>
121 1.165 elad #include <sys/kauth.h>
122 1.1 cgd
123 1.8 mycroft #include <net/if.h>
124 1.8 mycroft #include <net/if_dl.h>
125 1.66 onoe #include <net/if_ether.h>
126 1.124 dyoung #include <net/if_media.h>
127 1.132 dyoung #include <net80211/ieee80211.h>
128 1.132 dyoung #include <net80211/ieee80211_ioctl.h>
129 1.8 mycroft #include <net/if_types.h>
130 1.24 christos #include <net/radix.h>
131 1.53 thorpej #include <net/route.h>
132 1.95 itojun #include <net/netisr.h>
133 1.51 bouyer #ifdef NETATALK
134 1.51 bouyer #include <netatalk/at_extern.h>
135 1.51 bouyer #include <netatalk/at.h>
136 1.51 bouyer #endif
137 1.143 itojun #include <net/pfil.h>
138 1.1 cgd
139 1.49 itojun #ifdef INET6
140 1.49 itojun #include <netinet/in.h>
141 1.72 thorpej #include <netinet6/in6_var.h>
142 1.108 itojun #include <netinet6/nd6.h>
143 1.49 itojun #endif
144 1.117 thorpej
145 1.166 liamjfoy #include "carp.h"
146 1.166 liamjfoy #if NCARP > 0
147 1.166 liamjfoy #include <netinet/ip_carp.h>
148 1.166 liamjfoy #endif
149 1.166 liamjfoy
150 1.186 christos #include <compat/sys/sockio.h>
151 1.161 christos #include <compat/sys/socket.h>
152 1.161 christos
153 1.117 thorpej MALLOC_DEFINE(M_IFADDR, "ifaddr", "interface address");
154 1.117 thorpej MALLOC_DEFINE(M_IFMADDR, "ether_multi", "link-level multicast address");
155 1.49 itojun
156 1.1 cgd int ifqmaxlen = IFQ_MAXLEN;
157 1.193 ad callout_t if_slowtimo_ch;
158 1.49 itojun
159 1.104 matt int netisr; /* scheduling bits for network */
160 1.104 matt
161 1.192 dyoung static int if_rt_walktree(struct rtentry *, void *);
162 1.53 thorpej
163 1.163 thorpej static struct if_clone *if_clone_lookup(const char *, int *);
164 1.163 thorpej static int if_clone_list(struct if_clonereq *);
165 1.63 thorpej
166 1.163 thorpej static LIST_HEAD(, if_clone) if_cloners = LIST_HEAD_INITIALIZER(if_cloners);
167 1.163 thorpej static int if_cloners_count;
168 1.63 thorpej
169 1.143 itojun #ifdef PFIL_HOOKS
170 1.143 itojun struct pfil_head if_pfil; /* packet filtering hook for interfaces */
171 1.143 itojun #endif
172 1.143 itojun
173 1.163 thorpej static void if_detach_queues(struct ifnet *, struct ifqueue *);
174 1.95 itojun
175 1.1 cgd /*
176 1.1 cgd * Network interface utility routines.
177 1.1 cgd *
178 1.1 cgd * Routines with ifa_ifwith* names take sockaddr *'s as
179 1.1 cgd * parameters.
180 1.1 cgd */
181 1.4 andrew void
182 1.163 thorpej ifinit(void)
183 1.1 cgd {
184 1.1 cgd
185 1.193 ad callout_init(&if_slowtimo_ch, 0);
186 1.4 andrew if_slowtimo(NULL);
187 1.143 itojun #ifdef PFIL_HOOKS
188 1.143 itojun if_pfil.ph_type = PFIL_TYPE_IFNET;
189 1.143 itojun if_pfil.ph_ifnet = NULL;
190 1.143 itojun if (pfil_head_register(&if_pfil) != 0)
191 1.143 itojun printf("WARNING: unable to register pfil hook\n");
192 1.143 itojun #endif
193 1.1 cgd }
194 1.1 cgd
195 1.53 thorpej /*
196 1.53 thorpej * Null routines used while an interface is going away. These routines
197 1.53 thorpej * just return an error.
198 1.53 thorpej */
199 1.53 thorpej
200 1.53 thorpej int
201 1.177 christos if_nulloutput(struct ifnet *ifp, struct mbuf *m,
202 1.181 dyoung const struct sockaddr *so, struct rtentry *rt)
203 1.53 thorpej {
204 1.53 thorpej
205 1.185 dyoung return ENXIO;
206 1.53 thorpej }
207 1.53 thorpej
208 1.53 thorpej void
209 1.177 christos if_nullinput(struct ifnet *ifp, struct mbuf *m)
210 1.53 thorpej {
211 1.53 thorpej
212 1.53 thorpej /* Nothing. */
213 1.53 thorpej }
214 1.53 thorpej
215 1.53 thorpej void
216 1.177 christos if_nullstart(struct ifnet *ifp)
217 1.53 thorpej {
218 1.53 thorpej
219 1.53 thorpej /* Nothing. */
220 1.53 thorpej }
221 1.53 thorpej
222 1.53 thorpej int
223 1.183 christos if_nullioctl(struct ifnet *ifp, u_long cmd, void *data)
224 1.53 thorpej {
225 1.53 thorpej
226 1.185 dyoung return ENXIO;
227 1.53 thorpej }
228 1.53 thorpej
229 1.53 thorpej int
230 1.177 christos if_nullinit(struct ifnet *ifp)
231 1.53 thorpej {
232 1.53 thorpej
233 1.185 dyoung return ENXIO;
234 1.53 thorpej }
235 1.53 thorpej
236 1.53 thorpej void
237 1.177 christos if_nullstop(struct ifnet *ifp, int disable)
238 1.75 thorpej {
239 1.75 thorpej
240 1.75 thorpej /* Nothing. */
241 1.75 thorpej }
242 1.75 thorpej
243 1.75 thorpej void
244 1.177 christos if_nullwatchdog(struct ifnet *ifp)
245 1.53 thorpej {
246 1.53 thorpej
247 1.53 thorpej /* Nothing. */
248 1.53 thorpej }
249 1.53 thorpej
250 1.53 thorpej void
251 1.177 christos if_nulldrain(struct ifnet *ifp)
252 1.53 thorpej {
253 1.53 thorpej
254 1.53 thorpej /* Nothing. */
255 1.53 thorpej }
256 1.53 thorpej
257 1.137 itojun static u_int if_index = 1;
258 1.103 simonb struct ifnet_head ifnet;
259 1.137 itojun size_t if_indexlim = 0;
260 1.49 itojun struct ifaddr **ifnet_addrs = NULL;
261 1.49 itojun struct ifnet **ifindex2ifnet = NULL;
262 1.148 peter struct ifnet *lo0ifp;
263 1.1 cgd
264 1.1 cgd /*
265 1.81 thorpej * Allocate the link level name for the specified interface. This
266 1.81 thorpej * is an attachment helper. It must be called after ifp->if_addrlen
267 1.81 thorpej * is initialized, which may not be the case when if_attach() is
268 1.81 thorpej * called.
269 1.81 thorpej */
270 1.81 thorpej void
271 1.81 thorpej if_alloc_sadl(struct ifnet *ifp)
272 1.81 thorpej {
273 1.81 thorpej unsigned socksize, ifasize;
274 1.195 dyoung int addrlen, namelen;
275 1.195 dyoung struct sockaddr_dl *mask, *sdl;
276 1.81 thorpej struct ifaddr *ifa;
277 1.84 thorpej
278 1.84 thorpej /*
279 1.84 thorpej * If the interface already has a link name, release it
280 1.84 thorpej * now. This is useful for interfaces that can change
281 1.84 thorpej * link types, and thus switch link names often.
282 1.84 thorpej */
283 1.84 thorpej if (ifp->if_sadl != NULL)
284 1.84 thorpej if_free_sadl(ifp);
285 1.81 thorpej
286 1.81 thorpej namelen = strlen(ifp->if_xname);
287 1.195 dyoung addrlen = ifp->if_addrlen;
288 1.197 dyoung socksize = roundup(sockaddr_dl_measure(namelen, addrlen), sizeof(long));
289 1.81 thorpej ifasize = sizeof(*ifa) + 2 * socksize;
290 1.203 dyoung ifa = (struct ifaddr *)malloc(ifasize, M_IFADDR, M_WAITOK|M_ZERO);
291 1.195 dyoung
292 1.81 thorpej sdl = (struct sockaddr_dl *)(ifa + 1);
293 1.195 dyoung mask = (struct sockaddr_dl *)(socksize + (char *)sdl);
294 1.195 dyoung
295 1.197 dyoung sockaddr_dl_init(sdl, socksize, ifp->if_index, ifp->if_type,
296 1.195 dyoung ifp->if_xname, namelen, NULL, addrlen);
297 1.195 dyoung mask->sdl_len = sockaddr_dl_measure(namelen, 0);
298 1.197 dyoung memset(&mask->sdl_data[0], 0xff, namelen);
299 1.195 dyoung
300 1.81 thorpej ifnet_addrs[ifp->if_index] = ifa;
301 1.81 thorpej IFAREF(ifa);
302 1.81 thorpej ifa->ifa_ifp = ifp;
303 1.81 thorpej ifa->ifa_rtrequest = link_rtrequest;
304 1.81 thorpej TAILQ_INSERT_HEAD(&ifp->if_addrlist, ifa, ifa_list);
305 1.81 thorpej IFAREF(ifa);
306 1.81 thorpej ifa->ifa_addr = (struct sockaddr *)sdl;
307 1.81 thorpej ifp->if_sadl = sdl;
308 1.195 dyoung ifa->ifa_netmask = (struct sockaddr *)mask;
309 1.81 thorpej }
310 1.81 thorpej
311 1.81 thorpej /*
312 1.81 thorpej * Free the link level name for the specified interface. This is
313 1.81 thorpej * a detach helper. This is called from if_detach() or from
314 1.81 thorpej * link layer type specific detach functions.
315 1.81 thorpej */
316 1.81 thorpej void
317 1.81 thorpej if_free_sadl(struct ifnet *ifp)
318 1.81 thorpej {
319 1.81 thorpej struct ifaddr *ifa;
320 1.81 thorpej int s;
321 1.81 thorpej
322 1.81 thorpej ifa = ifnet_addrs[ifp->if_index];
323 1.81 thorpej if (ifa == NULL) {
324 1.81 thorpej KASSERT(ifp->if_sadl == NULL);
325 1.81 thorpej return;
326 1.81 thorpej }
327 1.81 thorpej
328 1.81 thorpej KASSERT(ifp->if_sadl != NULL);
329 1.81 thorpej
330 1.88 thorpej s = splnet();
331 1.81 thorpej rtinit(ifa, RTM_DELETE, 0);
332 1.81 thorpej TAILQ_REMOVE(&ifp->if_addrlist, ifa, ifa_list);
333 1.81 thorpej IFAFREE(ifa);
334 1.81 thorpej
335 1.81 thorpej ifp->if_sadl = NULL;
336 1.81 thorpej
337 1.81 thorpej ifnet_addrs[ifp->if_index] = NULL;
338 1.81 thorpej IFAFREE(ifa);
339 1.81 thorpej splx(s);
340 1.81 thorpej }
341 1.81 thorpej
342 1.81 thorpej /*
343 1.1 cgd * Attach an interface to the
344 1.1 cgd * list of "active" interfaces.
345 1.1 cgd */
346 1.15 mycroft void
347 1.163 thorpej if_attach(struct ifnet *ifp)
348 1.1 cgd {
349 1.102 atatat int indexlim = 0;
350 1.1 cgd
351 1.102 atatat if (if_indexlim == 0) {
352 1.22 mycroft TAILQ_INIT(&ifnet);
353 1.102 atatat if_indexlim = 8;
354 1.102 atatat }
355 1.22 mycroft TAILQ_INIT(&ifp->if_addrlist);
356 1.21 mycroft TAILQ_INSERT_TAIL(&ifnet, ifp, if_list);
357 1.102 atatat ifp->if_index = if_index;
358 1.185 dyoung if (ifindex2ifnet == NULL)
359 1.102 atatat if_index++;
360 1.102 atatat else
361 1.131 itojun while (ifp->if_index < if_indexlim &&
362 1.131 itojun ifindex2ifnet[ifp->if_index] != NULL) {
363 1.102 atatat ++if_index;
364 1.102 atatat if (if_index == 0)
365 1.102 atatat if_index = 1;
366 1.102 atatat /*
367 1.102 atatat * If we hit USHRT_MAX, we skip back to 0 since
368 1.102 atatat * there are a number of places where the value
369 1.102 atatat * of if_index or if_index itself is compared
370 1.111 itojun * to or stored in an unsigned short. By
371 1.102 atatat * jumping back, we won't botch those assignments
372 1.102 atatat * or comparisons.
373 1.102 atatat */
374 1.102 atatat else if (if_index == USHRT_MAX) {
375 1.102 atatat /*
376 1.102 atatat * However, if we have to jump back to
377 1.102 atatat * zero *twice* without finding an empty
378 1.102 atatat * slot in ifindex2ifnet[], then there
379 1.102 atatat * there are too many (>65535) interfaces.
380 1.102 atatat */
381 1.102 atatat if (indexlim++)
382 1.102 atatat panic("too many interfaces");
383 1.102 atatat else
384 1.102 atatat if_index = 1;
385 1.102 atatat }
386 1.102 atatat ifp->if_index = if_index;
387 1.102 atatat }
388 1.49 itojun
389 1.49 itojun /*
390 1.49 itojun * We have some arrays that should be indexed by if_index.
391 1.49 itojun * since if_index will grow dynamically, they should grow too.
392 1.49 itojun * struct ifadd **ifnet_addrs
393 1.49 itojun * struct ifnet **ifindex2ifnet
394 1.49 itojun */
395 1.185 dyoung if (ifnet_addrs == NULL || ifindex2ifnet == NULL ||
396 1.53 thorpej ifp->if_index >= if_indexlim) {
397 1.131 itojun size_t m, n, oldlim;
398 1.183 christos void *q;
399 1.154 perry
400 1.131 itojun oldlim = if_indexlim;
401 1.53 thorpej while (ifp->if_index >= if_indexlim)
402 1.49 itojun if_indexlim <<= 1;
403 1.49 itojun
404 1.49 itojun /* grow ifnet_addrs */
405 1.131 itojun m = oldlim * sizeof(struct ifaddr *);
406 1.81 thorpej n = if_indexlim * sizeof(struct ifaddr *);
407 1.203 dyoung q = (void *)malloc(n, M_IFADDR, M_WAITOK|M_ZERO);
408 1.185 dyoung if (ifnet_addrs != NULL) {
409 1.185 dyoung memcpy(q, ifnet_addrs, m);
410 1.183 christos free((void *)ifnet_addrs, M_IFADDR);
411 1.1 cgd }
412 1.49 itojun ifnet_addrs = (struct ifaddr **)q;
413 1.49 itojun
414 1.49 itojun /* grow ifindex2ifnet */
415 1.131 itojun m = oldlim * sizeof(struct ifnet *);
416 1.49 itojun n = if_indexlim * sizeof(struct ifnet *);
417 1.203 dyoung q = (void *)malloc(n, M_IFADDR, M_WAITOK|M_ZERO);
418 1.185 dyoung if (ifindex2ifnet != NULL) {
419 1.185 dyoung memcpy(q, (void *)ifindex2ifnet, m);
420 1.183 christos free((void *)ifindex2ifnet, M_IFADDR);
421 1.49 itojun }
422 1.49 itojun ifindex2ifnet = (struct ifnet **)q;
423 1.1 cgd }
424 1.49 itojun
425 1.53 thorpej ifindex2ifnet[ifp->if_index] = ifp;
426 1.49 itojun
427 1.1 cgd /*
428 1.81 thorpej * Link level name is allocated later by a separate call to
429 1.81 thorpej * if_alloc_sadl().
430 1.1 cgd */
431 1.81 thorpej
432 1.40 thorpej if (ifp->if_snd.ifq_maxlen == 0)
433 1.94 itojun ifp->if_snd.ifq_maxlen = ifqmaxlen;
434 1.42 is ifp->if_broadcastaddr = 0; /* reliably crash if used uninitialized */
435 1.57 thorpej
436 1.57 thorpej ifp->if_link_state = LINK_STATE_UNKNOWN;
437 1.57 thorpej
438 1.89 thorpej ifp->if_capenable = 0;
439 1.97 thorpej ifp->if_csum_flags_tx = 0;
440 1.97 thorpej ifp->if_csum_flags_rx = 0;
441 1.89 thorpej
442 1.86 thorpej #ifdef ALTQ
443 1.86 thorpej ifp->if_snd.altq_type = 0;
444 1.86 thorpej ifp->if_snd.altq_disc = NULL;
445 1.86 thorpej ifp->if_snd.altq_flags &= ALTQF_CANTCHANGE;
446 1.86 thorpej ifp->if_snd.altq_tbr = NULL;
447 1.86 thorpej ifp->if_snd.altq_ifp = ifp;
448 1.86 thorpej #endif
449 1.86 thorpej
450 1.87 thorpej #ifdef PFIL_HOOKS
451 1.87 thorpej ifp->if_pfil.ph_type = PFIL_TYPE_IFNET;
452 1.87 thorpej ifp->if_pfil.ph_ifnet = ifp;
453 1.87 thorpej if (pfil_head_register(&ifp->if_pfil) != 0)
454 1.87 thorpej printf("%s: WARNING: unable to register pfil hook\n",
455 1.87 thorpej ifp->if_xname);
456 1.144 yamt (void)pfil_run_hooks(&if_pfil,
457 1.144 yamt (struct mbuf **)PFIL_IFNET_ATTACH, ifp, PFIL_IFNET);
458 1.87 thorpej #endif
459 1.87 thorpej
460 1.152 matt if (!STAILQ_EMPTY(&domains))
461 1.147 tron if_attachdomain1(ifp);
462 1.147 tron
463 1.107 itojun /* Announce the interface. */
464 1.107 itojun rt_ifannouncemsg(ifp, IFAN_ARRIVAL);
465 1.107 itojun }
466 1.107 itojun
467 1.107 itojun void
468 1.163 thorpej if_attachdomain(void)
469 1.107 itojun {
470 1.107 itojun struct ifnet *ifp;
471 1.110 itojun int s;
472 1.107 itojun
473 1.110 itojun s = splnet();
474 1.185 dyoung IFNET_FOREACH(ifp)
475 1.107 itojun if_attachdomain1(ifp);
476 1.110 itojun splx(s);
477 1.107 itojun }
478 1.107 itojun
479 1.107 itojun void
480 1.163 thorpej if_attachdomain1(struct ifnet *ifp)
481 1.107 itojun {
482 1.107 itojun struct domain *dp;
483 1.109 itojun int s;
484 1.109 itojun
485 1.109 itojun s = splnet();
486 1.107 itojun
487 1.106 itojun /* address family dependent data region */
488 1.106 itojun memset(ifp->if_afdata, 0, sizeof(ifp->if_afdata));
489 1.152 matt DOMAIN_FOREACH(dp) {
490 1.185 dyoung if (dp->dom_ifattach != NULL)
491 1.106 itojun ifp->if_afdata[dp->dom_family] =
492 1.106 itojun (*dp->dom_ifattach)(ifp);
493 1.106 itojun }
494 1.109 itojun
495 1.109 itojun splx(s);
496 1.1 cgd }
497 1.53 thorpej
498 1.53 thorpej /*
499 1.53 thorpej * Deactivate an interface. This points all of the procedure
500 1.53 thorpej * handles at error stubs. May be called from interrupt context.
501 1.53 thorpej */
502 1.53 thorpej void
503 1.163 thorpej if_deactivate(struct ifnet *ifp)
504 1.53 thorpej {
505 1.53 thorpej int s;
506 1.53 thorpej
507 1.88 thorpej s = splnet();
508 1.53 thorpej
509 1.53 thorpej ifp->if_output = if_nulloutput;
510 1.53 thorpej ifp->if_input = if_nullinput;
511 1.53 thorpej ifp->if_start = if_nullstart;
512 1.53 thorpej ifp->if_ioctl = if_nullioctl;
513 1.75 thorpej ifp->if_init = if_nullinit;
514 1.75 thorpej ifp->if_stop = if_nullstop;
515 1.53 thorpej ifp->if_watchdog = if_nullwatchdog;
516 1.53 thorpej ifp->if_drain = if_nulldrain;
517 1.53 thorpej
518 1.53 thorpej /* No more packets may be enqueued. */
519 1.53 thorpej ifp->if_snd.ifq_maxlen = 0;
520 1.53 thorpej
521 1.53 thorpej splx(s);
522 1.53 thorpej }
523 1.53 thorpej
524 1.206 dyoung void
525 1.206 dyoung if_purgeaddrs(struct ifnet *ifp, int family,
526 1.206 dyoung void (*purgeaddr)(struct ifaddr *))
527 1.206 dyoung {
528 1.206 dyoung struct ifaddr *ifa, *nifa;
529 1.206 dyoung
530 1.206 dyoung for (ifa = IFADDR_FIRST(ifp); ifa != NULL; ifa = nifa) {
531 1.206 dyoung nifa = IFADDR_NEXT(ifa);
532 1.206 dyoung if (ifa->ifa_addr->sa_family != family)
533 1.206 dyoung continue;
534 1.206 dyoung (*purgeaddr)(ifa);
535 1.206 dyoung }
536 1.206 dyoung }
537 1.206 dyoung
538 1.53 thorpej /*
539 1.53 thorpej * Detach an interface from the list of "active" interfaces,
540 1.53 thorpej * freeing any resources as we go along.
541 1.53 thorpej *
542 1.53 thorpej * NOTE: This routine must be called with a valid thread context,
543 1.53 thorpej * as it may block.
544 1.53 thorpej */
545 1.53 thorpej void
546 1.163 thorpej if_detach(struct ifnet *ifp)
547 1.53 thorpej {
548 1.56 thorpej struct socket so;
549 1.178 dyoung struct ifaddr *ifa;
550 1.53 thorpej #ifdef IFAREF_DEBUG
551 1.53 thorpej struct ifaddr *last_ifa = NULL;
552 1.53 thorpej #endif
553 1.56 thorpej struct domain *dp;
554 1.141 matt const struct protosw *pr;
555 1.56 thorpej int s, i, family, purged;
556 1.53 thorpej
557 1.56 thorpej /*
558 1.56 thorpej * XXX It's kind of lame that we have to have the
559 1.56 thorpej * XXX socket structure...
560 1.56 thorpej */
561 1.56 thorpej memset(&so, 0, sizeof(so));
562 1.53 thorpej
563 1.88 thorpej s = splnet();
564 1.53 thorpej
565 1.53 thorpej /*
566 1.53 thorpej * Do an if_down() to give protocols a chance to do something.
567 1.53 thorpej */
568 1.53 thorpej if_down(ifp);
569 1.86 thorpej
570 1.86 thorpej #ifdef ALTQ
571 1.86 thorpej if (ALTQ_IS_ENABLED(&ifp->if_snd))
572 1.86 thorpej altq_disable(&ifp->if_snd);
573 1.86 thorpej if (ALTQ_IS_ATTACHED(&ifp->if_snd))
574 1.86 thorpej altq_detach(&ifp->if_snd);
575 1.87 thorpej #endif
576 1.87 thorpej
577 1.166 liamjfoy
578 1.166 liamjfoy #if NCARP > 0
579 1.166 liamjfoy /* Remove the interface from any carp group it is a part of. */
580 1.185 dyoung if (ifp->if_carp != NULL && ifp->if_type != IFT_CARP)
581 1.166 liamjfoy carp_ifdetach(ifp);
582 1.166 liamjfoy #endif
583 1.166 liamjfoy
584 1.53 thorpej /*
585 1.53 thorpej * Rip all the addresses off the interface. This should make
586 1.53 thorpej * all of the routes go away.
587 1.178 dyoung *
588 1.178 dyoung * pr_usrreq calls can remove an arbitrary number of ifaddrs
589 1.178 dyoung * from the list, including our "cursor", ifa. For safety,
590 1.178 dyoung * and to honor the TAILQ abstraction, I just restart the
591 1.178 dyoung * loop after each removal. Note that the loop will exit
592 1.178 dyoung * when all of the remaining ifaddrs belong to the AF_LINK
593 1.178 dyoung * family. I am counting on the historical fact that at
594 1.178 dyoung * least one pr_usrreq in each address domain removes at
595 1.178 dyoung * least one ifaddr.
596 1.53 thorpej */
597 1.178 dyoung again:
598 1.204 dyoung IFADDR_FOREACH(ifa, ifp) {
599 1.56 thorpej family = ifa->ifa_addr->sa_family;
600 1.53 thorpej #ifdef IFAREF_DEBUG
601 1.53 thorpej printf("if_detach: ifaddr %p, family %d, refcnt %d\n",
602 1.56 thorpej ifa, family, ifa->ifa_refcnt);
603 1.53 thorpej if (last_ifa != NULL && ifa == last_ifa)
604 1.56 thorpej panic("if_detach: loop detected");
605 1.53 thorpej last_ifa = ifa;
606 1.53 thorpej #endif
607 1.178 dyoung if (family == AF_LINK)
608 1.118 itojun continue;
609 1.118 itojun dp = pffinddomain(family);
610 1.56 thorpej #ifdef DIAGNOSTIC
611 1.118 itojun if (dp == NULL)
612 1.118 itojun panic("if_detach: no domain for AF %d",
613 1.118 itojun family);
614 1.56 thorpej #endif
615 1.160 gdt /*
616 1.160 gdt * XXX These PURGEIF calls are redundant with the
617 1.160 gdt * purge-all-families calls below, but are left in for
618 1.160 gdt * now both to make a smaller change, and to avoid
619 1.160 gdt * unplanned interactions with clearing of
620 1.160 gdt * ifp->if_addrlist.
621 1.160 gdt */
622 1.118 itojun purged = 0;
623 1.118 itojun for (pr = dp->dom_protosw;
624 1.118 itojun pr < dp->dom_protoswNPROTOSW; pr++) {
625 1.118 itojun so.so_proto = pr;
626 1.118 itojun if (pr->pr_usrreq != NULL) {
627 1.118 itojun (void) (*pr->pr_usrreq)(&so,
628 1.118 itojun PRU_PURGEIF, NULL, NULL,
629 1.162 christos (struct mbuf *) ifp, curlwp);
630 1.118 itojun purged = 1;
631 1.53 thorpej }
632 1.118 itojun }
633 1.118 itojun if (purged == 0) {
634 1.118 itojun /*
635 1.118 itojun * XXX What's really the best thing to do
636 1.135 keihan * XXX here? --thorpej (at) NetBSD.org
637 1.118 itojun */
638 1.118 itojun printf("if_detach: WARNING: AF %d not purged\n",
639 1.118 itojun family);
640 1.134 drochner TAILQ_REMOVE(&ifp->if_addrlist, ifa, ifa_list);
641 1.53 thorpej }
642 1.178 dyoung goto again;
643 1.53 thorpej }
644 1.118 itojun
645 1.118 itojun if_free_sadl(ifp);
646 1.53 thorpej
647 1.180 dyoung /* Walk the routing table looking for stragglers. */
648 1.192 dyoung for (i = 0; i <= AF_MAX; i++)
649 1.192 dyoung (void)rt_walktree(i, if_rt_walktree, ifp);
650 1.106 itojun
651 1.152 matt DOMAIN_FOREACH(dp) {
652 1.185 dyoung if (dp->dom_ifdetach != NULL && ifp->if_afdata[dp->dom_family])
653 1.106 itojun (*dp->dom_ifdetach)(ifp,
654 1.106 itojun ifp->if_afdata[dp->dom_family]);
655 1.160 gdt
656 1.160 gdt /*
657 1.160 gdt * One would expect multicast memberships (INET and
658 1.160 gdt * INET6) on UDP sockets to be purged by the PURGEIF
659 1.160 gdt * calls above, but if all addresses were removed from
660 1.160 gdt * the interface prior to destruction, the calls will
661 1.160 gdt * not be made (e.g. ppp, for which pppd(8) generally
662 1.160 gdt * removes addresses before destroying the interface).
663 1.160 gdt * Because there is no invariant that multicast
664 1.160 gdt * memberships only exist for interfaces with IPv4
665 1.160 gdt * addresses, we must call PURGEIF regardless of
666 1.160 gdt * addresses. (Protocols which might store ifnet
667 1.160 gdt * pointers are marked with PR_PURGEIF.)
668 1.160 gdt */
669 1.185 dyoung for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
670 1.160 gdt so.so_proto = pr;
671 1.185 dyoung if (pr->pr_usrreq != NULL && pr->pr_flags & PR_PURGEIF)
672 1.185 dyoung (void)(*pr->pr_usrreq)(&so, PRU_PURGEIF, NULL,
673 1.185 dyoung NULL, (struct mbuf *)ifp, curlwp);
674 1.160 gdt }
675 1.53 thorpej }
676 1.57 thorpej
677 1.184 dyoung #ifdef PFIL_HOOKS
678 1.184 dyoung (void)pfil_run_hooks(&if_pfil,
679 1.184 dyoung (struct mbuf **)PFIL_IFNET_DETACH, ifp, PFIL_IFNET);
680 1.184 dyoung (void)pfil_head_unregister(&ifp->if_pfil);
681 1.184 dyoung #endif
682 1.184 dyoung
683 1.57 thorpej /* Announce that the interface is gone. */
684 1.57 thorpej rt_ifannouncemsg(ifp, IFAN_DEPARTURE);
685 1.93 itojun
686 1.93 itojun ifindex2ifnet[ifp->if_index] = NULL;
687 1.53 thorpej
688 1.53 thorpej TAILQ_REMOVE(&ifnet, ifp, if_list);
689 1.53 thorpej
690 1.95 itojun /*
691 1.168 matt * remove packets that came from ifp, from software interrupt queues.
692 1.95 itojun */
693 1.168 matt DOMAIN_FOREACH(dp) {
694 1.168 matt for (i = 0; i < __arraycount(dp->dom_ifqueues); i++) {
695 1.168 matt if (dp->dom_ifqueues[i] == NULL)
696 1.168 matt break;
697 1.168 matt if_detach_queues(ifp, dp->dom_ifqueues[i]);
698 1.168 matt }
699 1.168 matt }
700 1.95 itojun
701 1.53 thorpej splx(s);
702 1.95 itojun }
703 1.95 itojun
704 1.95 itojun static void
705 1.163 thorpej if_detach_queues(struct ifnet *ifp, struct ifqueue *q)
706 1.95 itojun {
707 1.95 itojun struct mbuf *m, *prev, *next;
708 1.95 itojun
709 1.95 itojun prev = NULL;
710 1.185 dyoung for (m = q->ifq_head; m != NULL; m = next) {
711 1.95 itojun next = m->m_nextpkt;
712 1.95 itojun #ifdef DIAGNOSTIC
713 1.96 itojun if ((m->m_flags & M_PKTHDR) == 0) {
714 1.96 itojun prev = m;
715 1.95 itojun continue;
716 1.96 itojun }
717 1.95 itojun #endif
718 1.96 itojun if (m->m_pkthdr.rcvif != ifp) {
719 1.96 itojun prev = m;
720 1.95 itojun continue;
721 1.96 itojun }
722 1.95 itojun
723 1.185 dyoung if (prev != NULL)
724 1.95 itojun prev->m_nextpkt = m->m_nextpkt;
725 1.95 itojun else
726 1.95 itojun q->ifq_head = m->m_nextpkt;
727 1.95 itojun if (q->ifq_tail == m)
728 1.95 itojun q->ifq_tail = prev;
729 1.95 itojun q->ifq_len--;
730 1.95 itojun
731 1.95 itojun m->m_nextpkt = NULL;
732 1.95 itojun m_freem(m);
733 1.95 itojun IF_DROP(q);
734 1.95 itojun }
735 1.53 thorpej }
736 1.53 thorpej
737 1.53 thorpej /*
738 1.53 thorpej * Callback for a radix tree walk to delete all references to an
739 1.53 thorpej * ifnet.
740 1.53 thorpej */
741 1.163 thorpej static int
742 1.192 dyoung if_rt_walktree(struct rtentry *rt, void *v)
743 1.53 thorpej {
744 1.55 itojun struct ifnet *ifp = (struct ifnet *)v;
745 1.53 thorpej int error;
746 1.53 thorpej
747 1.185 dyoung if (rt->rt_ifp != ifp)
748 1.185 dyoung return 0;
749 1.185 dyoung
750 1.185 dyoung /* Delete the entry. */
751 1.185 dyoung ++rt->rt_refcnt;
752 1.194 dyoung error = rtrequest(RTM_DELETE, rt_getkey(rt), rt->rt_gateway,
753 1.185 dyoung rt_mask(rt), rt->rt_flags, NULL);
754 1.185 dyoung KASSERT((rt->rt_flags & RTF_UP) == 0);
755 1.185 dyoung rt->rt_ifp = NULL;
756 1.185 dyoung RTFREE(rt);
757 1.185 dyoung if (error != 0)
758 1.185 dyoung printf("%s: warning: unable to delete rtentry @ %p, "
759 1.185 dyoung "error = %d\n", ifp->if_xname, rt, error);
760 1.185 dyoung return 0;
761 1.53 thorpej }
762 1.53 thorpej
763 1.1 cgd /*
764 1.63 thorpej * Create a clone network interface.
765 1.63 thorpej */
766 1.63 thorpej int
767 1.163 thorpej if_clone_create(const char *name)
768 1.63 thorpej {
769 1.63 thorpej struct if_clone *ifc;
770 1.63 thorpej int unit;
771 1.63 thorpej
772 1.63 thorpej ifc = if_clone_lookup(name, &unit);
773 1.63 thorpej if (ifc == NULL)
774 1.185 dyoung return EINVAL;
775 1.63 thorpej
776 1.63 thorpej if (ifunit(name) != NULL)
777 1.185 dyoung return EEXIST;
778 1.63 thorpej
779 1.185 dyoung return (*ifc->ifc_create)(ifc, unit);
780 1.63 thorpej }
781 1.63 thorpej
782 1.63 thorpej /*
783 1.63 thorpej * Destroy a clone network interface.
784 1.63 thorpej */
785 1.63 thorpej int
786 1.163 thorpej if_clone_destroy(const char *name)
787 1.63 thorpej {
788 1.63 thorpej struct if_clone *ifc;
789 1.63 thorpej struct ifnet *ifp;
790 1.63 thorpej
791 1.63 thorpej ifc = if_clone_lookup(name, NULL);
792 1.63 thorpej if (ifc == NULL)
793 1.185 dyoung return EINVAL;
794 1.63 thorpej
795 1.63 thorpej ifp = ifunit(name);
796 1.63 thorpej if (ifp == NULL)
797 1.185 dyoung return ENXIO;
798 1.63 thorpej
799 1.63 thorpej if (ifc->ifc_destroy == NULL)
800 1.185 dyoung return EOPNOTSUPP;
801 1.63 thorpej
802 1.185 dyoung return (*ifc->ifc_destroy)(ifp);
803 1.63 thorpej }
804 1.63 thorpej
805 1.63 thorpej /*
806 1.63 thorpej * Look up a network interface cloner.
807 1.63 thorpej */
808 1.163 thorpej static struct if_clone *
809 1.163 thorpej if_clone_lookup(const char *name, int *unitp)
810 1.63 thorpej {
811 1.63 thorpej struct if_clone *ifc;
812 1.63 thorpej const char *cp;
813 1.128 itojun int unit;
814 1.63 thorpej
815 1.128 itojun /* separate interface name from unit */
816 1.128 itojun for (cp = name;
817 1.130 itojun cp - name < IFNAMSIZ && *cp && (*cp < '0' || *cp > '9');
818 1.128 itojun cp++)
819 1.128 itojun continue;
820 1.128 itojun
821 1.128 itojun if (cp == name || cp - name == IFNAMSIZ || !*cp)
822 1.185 dyoung return NULL; /* No name or unit number */
823 1.128 itojun
824 1.128 itojun LIST_FOREACH(ifc, &if_cloners, ifc_list) {
825 1.128 itojun if (strlen(ifc->ifc_name) == cp - name &&
826 1.185 dyoung strncmp(name, ifc->ifc_name, cp - name) == 0)
827 1.128 itojun break;
828 1.63 thorpej }
829 1.63 thorpej
830 1.128 itojun if (ifc == NULL)
831 1.185 dyoung return NULL;
832 1.63 thorpej
833 1.128 itojun unit = 0;
834 1.129 itojun while (cp - name < IFNAMSIZ && *cp) {
835 1.129 itojun if (*cp < '0' || *cp > '9' || unit > INT_MAX / 10) {
836 1.63 thorpej /* Bogus unit number. */
837 1.185 dyoung return NULL;
838 1.63 thorpej }
839 1.128 itojun unit = (unit * 10) + (*cp++ - '0');
840 1.63 thorpej }
841 1.63 thorpej
842 1.63 thorpej if (unitp != NULL)
843 1.128 itojun *unitp = unit;
844 1.185 dyoung return ifc;
845 1.63 thorpej }
846 1.63 thorpej
847 1.63 thorpej /*
848 1.63 thorpej * Register a network interface cloner.
849 1.63 thorpej */
850 1.63 thorpej void
851 1.163 thorpej if_clone_attach(struct if_clone *ifc)
852 1.63 thorpej {
853 1.63 thorpej
854 1.63 thorpej LIST_INSERT_HEAD(&if_cloners, ifc, ifc_list);
855 1.67 thorpej if_cloners_count++;
856 1.63 thorpej }
857 1.63 thorpej
858 1.63 thorpej /*
859 1.63 thorpej * Unregister a network interface cloner.
860 1.63 thorpej */
861 1.63 thorpej void
862 1.163 thorpej if_clone_detach(struct if_clone *ifc)
863 1.63 thorpej {
864 1.63 thorpej
865 1.63 thorpej LIST_REMOVE(ifc, ifc_list);
866 1.67 thorpej if_cloners_count--;
867 1.67 thorpej }
868 1.67 thorpej
869 1.67 thorpej /*
870 1.67 thorpej * Provide list of interface cloners to userspace.
871 1.67 thorpej */
872 1.163 thorpej static int
873 1.163 thorpej if_clone_list(struct if_clonereq *ifcr)
874 1.67 thorpej {
875 1.67 thorpej char outbuf[IFNAMSIZ], *dst;
876 1.67 thorpej struct if_clone *ifc;
877 1.67 thorpej int count, error = 0;
878 1.67 thorpej
879 1.67 thorpej ifcr->ifcr_total = if_cloners_count;
880 1.67 thorpej if ((dst = ifcr->ifcr_buffer) == NULL) {
881 1.67 thorpej /* Just asking how many there are. */
882 1.185 dyoung return 0;
883 1.67 thorpej }
884 1.67 thorpej
885 1.67 thorpej if (ifcr->ifcr_count < 0)
886 1.185 dyoung return EINVAL;
887 1.67 thorpej
888 1.67 thorpej count = (if_cloners_count < ifcr->ifcr_count) ?
889 1.67 thorpej if_cloners_count : ifcr->ifcr_count;
890 1.67 thorpej
891 1.67 thorpej for (ifc = LIST_FIRST(&if_cloners); ifc != NULL && count != 0;
892 1.67 thorpej ifc = LIST_NEXT(ifc, ifc_list), count--, dst += IFNAMSIZ) {
893 1.175 christos (void)strncpy(outbuf, ifc->ifc_name, sizeof(outbuf));
894 1.175 christos if (outbuf[sizeof(outbuf) - 1] != '\0')
895 1.175 christos return ENAMETOOLONG;
896 1.172 christos error = copyout(outbuf, dst, sizeof(outbuf));
897 1.185 dyoung if (error != 0)
898 1.67 thorpej break;
899 1.67 thorpej }
900 1.67 thorpej
901 1.185 dyoung return error;
902 1.63 thorpej }
903 1.63 thorpej
904 1.194 dyoung static inline int
905 1.194 dyoung equal(const struct sockaddr *sa1, const struct sockaddr *sa2)
906 1.194 dyoung {
907 1.194 dyoung return sockaddr_cmp(sa1, sa2) == 0;
908 1.194 dyoung }
909 1.194 dyoung
910 1.63 thorpej /*
911 1.1 cgd * Locate an interface based on a complete address.
912 1.1 cgd */
913 1.1 cgd /*ARGSUSED*/
914 1.1 cgd struct ifaddr *
915 1.163 thorpej ifa_ifwithaddr(const struct sockaddr *addr)
916 1.1 cgd {
917 1.61 augustss struct ifnet *ifp;
918 1.61 augustss struct ifaddr *ifa;
919 1.1 cgd
920 1.185 dyoung IFNET_FOREACH(ifp) {
921 1.53 thorpej if (ifp->if_output == if_nulloutput)
922 1.1 cgd continue;
923 1.204 dyoung IFADDR_FOREACH(ifa, ifp) {
924 1.53 thorpej if (ifa->ifa_addr->sa_family != addr->sa_family)
925 1.53 thorpej continue;
926 1.53 thorpej if (equal(addr, ifa->ifa_addr))
927 1.185 dyoung return ifa;
928 1.53 thorpej if ((ifp->if_flags & IFF_BROADCAST) &&
929 1.53 thorpej ifa->ifa_broadaddr &&
930 1.53 thorpej /* IP6 doesn't have broadcast */
931 1.53 thorpej ifa->ifa_broadaddr->sa_len != 0 &&
932 1.53 thorpej equal(ifa->ifa_broadaddr, addr))
933 1.185 dyoung return ifa;
934 1.53 thorpej }
935 1.1 cgd }
936 1.185 dyoung return NULL;
937 1.1 cgd }
938 1.49 itojun
939 1.1 cgd /*
940 1.1 cgd * Locate the point to point interface with a given destination address.
941 1.1 cgd */
942 1.1 cgd /*ARGSUSED*/
943 1.1 cgd struct ifaddr *
944 1.163 thorpej ifa_ifwithdstaddr(const struct sockaddr *addr)
945 1.1 cgd {
946 1.61 augustss struct ifnet *ifp;
947 1.61 augustss struct ifaddr *ifa;
948 1.1 cgd
949 1.185 dyoung IFNET_FOREACH(ifp) {
950 1.53 thorpej if (ifp->if_output == if_nulloutput)
951 1.53 thorpej continue;
952 1.185 dyoung if ((ifp->if_flags & IFF_POINTOPOINT) == 0)
953 1.185 dyoung continue;
954 1.204 dyoung IFADDR_FOREACH(ifa, ifp) {
955 1.185 dyoung if (ifa->ifa_addr->sa_family != addr->sa_family ||
956 1.185 dyoung ifa->ifa_dstaddr == NULL)
957 1.185 dyoung continue;
958 1.185 dyoung if (equal(addr, ifa->ifa_dstaddr))
959 1.185 dyoung return ifa;
960 1.53 thorpej }
961 1.1 cgd }
962 1.185 dyoung return NULL;
963 1.1 cgd }
964 1.1 cgd
965 1.1 cgd /*
966 1.1 cgd * Find an interface on a specific network. If many, choice
967 1.15 mycroft * is most specific found.
968 1.1 cgd */
969 1.1 cgd struct ifaddr *
970 1.163 thorpej ifa_ifwithnet(const struct sockaddr *addr)
971 1.1 cgd {
972 1.61 augustss struct ifnet *ifp;
973 1.61 augustss struct ifaddr *ifa;
974 1.140 matt const struct sockaddr_dl *sdl;
975 1.15 mycroft struct ifaddr *ifa_maybe = 0;
976 1.1 cgd u_int af = addr->sa_family;
977 1.171 pooka const char *addr_data = addr->sa_data, *cplim;
978 1.1 cgd
979 1.1 cgd if (af == AF_LINK) {
980 1.195 dyoung sdl = satocsdl(addr);
981 1.137 itojun if (sdl->sdl_index && sdl->sdl_index < if_indexlim &&
982 1.137 itojun ifindex2ifnet[sdl->sdl_index] &&
983 1.53 thorpej ifindex2ifnet[sdl->sdl_index]->if_output != if_nulloutput)
984 1.185 dyoung return ifnet_addrs[sdl->sdl_index];
985 1.1 cgd }
986 1.51 bouyer #ifdef NETATALK
987 1.51 bouyer if (af == AF_APPLETALK) {
988 1.140 matt const struct sockaddr_at *sat, *sat2;
989 1.158 christos sat = (const struct sockaddr_at *)addr;
990 1.185 dyoung IFNET_FOREACH(ifp) {
991 1.53 thorpej if (ifp->if_output == if_nulloutput)
992 1.53 thorpej continue;
993 1.158 christos ifa = at_ifawithnet((const struct sockaddr_at *)addr, ifp);
994 1.62 bouyer if (ifa == NULL)
995 1.62 bouyer continue;
996 1.62 bouyer sat2 = (struct sockaddr_at *)ifa->ifa_addr;
997 1.62 bouyer if (sat2->sat_addr.s_net == sat->sat_addr.s_net)
998 1.185 dyoung return ifa; /* exact match */
999 1.62 bouyer if (ifa_maybe == NULL) {
1000 1.112 wiz /* else keep the if with the right range */
1001 1.62 bouyer ifa_maybe = ifa;
1002 1.62 bouyer }
1003 1.51 bouyer }
1004 1.185 dyoung return ifa_maybe;
1005 1.51 bouyer }
1006 1.51 bouyer #endif
1007 1.185 dyoung IFNET_FOREACH(ifp) {
1008 1.53 thorpej if (ifp->if_output == if_nulloutput)
1009 1.53 thorpej continue;
1010 1.204 dyoung IFADDR_FOREACH(ifa, ifp) {
1011 1.171 pooka const char *cp, *cp2, *cp3;
1012 1.15 mycroft
1013 1.15 mycroft if (ifa->ifa_addr->sa_family != af ||
1014 1.185 dyoung ifa->ifa_netmask == NULL)
1015 1.53 thorpej next: continue;
1016 1.15 mycroft cp = addr_data;
1017 1.15 mycroft cp2 = ifa->ifa_addr->sa_data;
1018 1.15 mycroft cp3 = ifa->ifa_netmask->sa_data;
1019 1.171 pooka cplim = (const char *)ifa->ifa_netmask +
1020 1.53 thorpej ifa->ifa_netmask->sa_len;
1021 1.53 thorpej while (cp3 < cplim) {
1022 1.53 thorpej if ((*cp++ ^ *cp2++) & *cp3++) {
1023 1.53 thorpej /* want to continue for() loop */
1024 1.32 mrg goto next;
1025 1.53 thorpej }
1026 1.53 thorpej }
1027 1.185 dyoung if (ifa_maybe == NULL ||
1028 1.183 christos rn_refines((void *)ifa->ifa_netmask,
1029 1.183 christos (void *)ifa_maybe->ifa_netmask))
1030 1.15 mycroft ifa_maybe = ifa;
1031 1.15 mycroft }
1032 1.53 thorpej }
1033 1.185 dyoung return ifa_maybe;
1034 1.26 mrg }
1035 1.53 thorpej
1036 1.26 mrg /*
1037 1.26 mrg * Find the interface of the addresss.
1038 1.26 mrg */
1039 1.26 mrg struct ifaddr *
1040 1.163 thorpej ifa_ifwithladdr(const struct sockaddr *addr)
1041 1.26 mrg {
1042 1.26 mrg struct ifaddr *ia;
1043 1.26 mrg
1044 1.53 thorpej if ((ia = ifa_ifwithaddr(addr)) || (ia = ifa_ifwithdstaddr(addr)) ||
1045 1.53 thorpej (ia = ifa_ifwithnet(addr)))
1046 1.185 dyoung return ia;
1047 1.185 dyoung return NULL;
1048 1.1 cgd }
1049 1.1 cgd
1050 1.1 cgd /*
1051 1.1 cgd * Find an interface using a specific address family
1052 1.1 cgd */
1053 1.1 cgd struct ifaddr *
1054 1.163 thorpej ifa_ifwithaf(int af)
1055 1.1 cgd {
1056 1.61 augustss struct ifnet *ifp;
1057 1.61 augustss struct ifaddr *ifa;
1058 1.1 cgd
1059 1.185 dyoung IFNET_FOREACH(ifp) {
1060 1.53 thorpej if (ifp->if_output == if_nulloutput)
1061 1.53 thorpej continue;
1062 1.204 dyoung IFADDR_FOREACH(ifa, ifp) {
1063 1.21 mycroft if (ifa->ifa_addr->sa_family == af)
1064 1.178 dyoung return ifa;
1065 1.53 thorpej }
1066 1.53 thorpej }
1067 1.178 dyoung return NULL;
1068 1.1 cgd }
1069 1.1 cgd
1070 1.1 cgd /*
1071 1.1 cgd * Find an interface address specific to an interface best matching
1072 1.1 cgd * a given address.
1073 1.1 cgd */
1074 1.1 cgd struct ifaddr *
1075 1.163 thorpej ifaof_ifpforaddr(const struct sockaddr *addr, struct ifnet *ifp)
1076 1.1 cgd {
1077 1.61 augustss struct ifaddr *ifa;
1078 1.140 matt const char *cp, *cp2, *cp3;
1079 1.140 matt const char *cplim;
1080 1.1 cgd struct ifaddr *ifa_maybe = 0;
1081 1.1 cgd u_int af = addr->sa_family;
1082 1.1 cgd
1083 1.53 thorpej if (ifp->if_output == if_nulloutput)
1084 1.185 dyoung return NULL;
1085 1.53 thorpej
1086 1.1 cgd if (af >= AF_MAX)
1087 1.185 dyoung return NULL;
1088 1.53 thorpej
1089 1.204 dyoung IFADDR_FOREACH(ifa, ifp) {
1090 1.1 cgd if (ifa->ifa_addr->sa_family != af)
1091 1.1 cgd continue;
1092 1.1 cgd ifa_maybe = ifa;
1093 1.185 dyoung if (ifa->ifa_netmask == NULL) {
1094 1.1 cgd if (equal(addr, ifa->ifa_addr) ||
1095 1.53 thorpej (ifa->ifa_dstaddr &&
1096 1.53 thorpej equal(addr, ifa->ifa_dstaddr)))
1097 1.185 dyoung return ifa;
1098 1.1 cgd continue;
1099 1.1 cgd }
1100 1.1 cgd cp = addr->sa_data;
1101 1.1 cgd cp2 = ifa->ifa_addr->sa_data;
1102 1.1 cgd cp3 = ifa->ifa_netmask->sa_data;
1103 1.1 cgd cplim = ifa->ifa_netmask->sa_len + (char *)ifa->ifa_netmask;
1104 1.53 thorpej for (; cp3 < cplim; cp3++) {
1105 1.1 cgd if ((*cp++ ^ *cp2++) & *cp3)
1106 1.1 cgd break;
1107 1.53 thorpej }
1108 1.1 cgd if (cp3 == cplim)
1109 1.185 dyoung return ifa;
1110 1.1 cgd }
1111 1.185 dyoung return ifa_maybe;
1112 1.1 cgd }
1113 1.9 mycroft
1114 1.1 cgd /*
1115 1.1 cgd * Default action when installing a route with a Link Level gateway.
1116 1.1 cgd * Lookup an appropriate real ifa to point to.
1117 1.1 cgd * This should be moved to /sys/net/link.c eventually.
1118 1.1 cgd */
1119 1.15 mycroft void
1120 1.163 thorpej link_rtrequest(int cmd, struct rtentry *rt, struct rt_addrinfo *info)
1121 1.1 cgd {
1122 1.61 augustss struct ifaddr *ifa;
1123 1.194 dyoung const struct sockaddr *dst;
1124 1.15 mycroft struct ifnet *ifp;
1125 1.1 cgd
1126 1.185 dyoung if (cmd != RTM_ADD || ((ifa = rt->rt_ifa) == NULL) ||
1127 1.194 dyoung ((ifp = ifa->ifa_ifp) == NULL) || ((dst = rt_getkey(rt)) == NULL))
1128 1.1 cgd return;
1129 1.24 christos if ((ifa = ifaof_ifpforaddr(dst, ifp)) != NULL) {
1130 1.176 dyoung rt_replace_ifa(rt, ifa);
1131 1.1 cgd if (ifa->ifa_rtrequest && ifa->ifa_rtrequest != link_rtrequest)
1132 1.82 itojun ifa->ifa_rtrequest(cmd, rt, info);
1133 1.1 cgd }
1134 1.1 cgd }
1135 1.1 cgd
1136 1.1 cgd /*
1137 1.159 dyoung * Handle a change in the interface link state.
1138 1.159 dyoung */
1139 1.159 dyoung void
1140 1.159 dyoung if_link_state_change(struct ifnet *ifp, int link_state)
1141 1.159 dyoung {
1142 1.185 dyoung if (ifp->if_link_state == link_state)
1143 1.185 dyoung return;
1144 1.185 dyoung ifp->if_link_state = link_state;
1145 1.159 dyoung /* Notify that the link state has changed. */
1146 1.185 dyoung rt_ifmsg(ifp);
1147 1.166 liamjfoy #if NCARP > 0
1148 1.185 dyoung if (ifp->if_carp)
1149 1.185 dyoung carp_carpdev_state(ifp);
1150 1.166 liamjfoy #endif
1151 1.159 dyoung }
1152 1.159 dyoung
1153 1.159 dyoung /*
1154 1.1 cgd * Mark an interface down and notify protocols of
1155 1.1 cgd * the transition.
1156 1.23 mycroft * NOTE: must be called at splsoftnet or equivalent.
1157 1.1 cgd */
1158 1.15 mycroft void
1159 1.163 thorpej if_down(struct ifnet *ifp)
1160 1.1 cgd {
1161 1.61 augustss struct ifaddr *ifa;
1162 1.1 cgd
1163 1.1 cgd ifp->if_flags &= ~IFF_UP;
1164 1.91 itojun microtime(&ifp->if_lastchange);
1165 1.204 dyoung IFADDR_FOREACH(ifa, ifp)
1166 1.1 cgd pfctlinput(PRC_IFDOWN, ifa->ifa_addr);
1167 1.78 thorpej IFQ_PURGE(&ifp->if_snd);
1168 1.166 liamjfoy #if NCARP > 0
1169 1.166 liamjfoy if (ifp->if_carp)
1170 1.166 liamjfoy carp_carpdev_state(ifp);
1171 1.166 liamjfoy #endif
1172 1.15 mycroft rt_ifmsg(ifp);
1173 1.15 mycroft }
1174 1.15 mycroft
1175 1.15 mycroft /*
1176 1.15 mycroft * Mark an interface up and notify protocols of
1177 1.15 mycroft * the transition.
1178 1.23 mycroft * NOTE: must be called at splsoftnet or equivalent.
1179 1.15 mycroft */
1180 1.15 mycroft void
1181 1.163 thorpej if_up(struct ifnet *ifp)
1182 1.15 mycroft {
1183 1.24 christos #ifdef notyet
1184 1.61 augustss struct ifaddr *ifa;
1185 1.24 christos #endif
1186 1.15 mycroft
1187 1.15 mycroft ifp->if_flags |= IFF_UP;
1188 1.91 itojun microtime(&ifp->if_lastchange);
1189 1.15 mycroft #ifdef notyet
1190 1.15 mycroft /* this has no effect on IP, and will kill all ISO connections XXX */
1191 1.204 dyoung IFADDR_FOREACH(ifa, ifp)
1192 1.15 mycroft pfctlinput(PRC_IFUP, ifa->ifa_addr);
1193 1.15 mycroft #endif
1194 1.166 liamjfoy #if NCARP > 0
1195 1.166 liamjfoy if (ifp->if_carp)
1196 1.166 liamjfoy carp_carpdev_state(ifp);
1197 1.166 liamjfoy #endif
1198 1.15 mycroft rt_ifmsg(ifp);
1199 1.49 itojun #ifdef INET6
1200 1.49 itojun in6_if_up(ifp);
1201 1.49 itojun #endif
1202 1.1 cgd }
1203 1.1 cgd
1204 1.1 cgd /*
1205 1.1 cgd * Handle interface watchdog timer routines. Called
1206 1.1 cgd * from softclock, we decrement timers (if set) and
1207 1.1 cgd * call the appropriate interface routine on expiration.
1208 1.1 cgd */
1209 1.4 andrew void
1210 1.177 christos if_slowtimo(void *arg)
1211 1.1 cgd {
1212 1.61 augustss struct ifnet *ifp;
1213 1.88 thorpej int s = splnet();
1214 1.1 cgd
1215 1.185 dyoung IFNET_FOREACH(ifp) {
1216 1.1 cgd if (ifp->if_timer == 0 || --ifp->if_timer)
1217 1.1 cgd continue;
1218 1.185 dyoung if (ifp->if_watchdog != NULL)
1219 1.34 thorpej (*ifp->if_watchdog)(ifp);
1220 1.1 cgd }
1221 1.1 cgd splx(s);
1222 1.185 dyoung callout_reset(&if_slowtimo_ch, hz / IFNET_SLOWHZ, if_slowtimo, NULL);
1223 1.65 thorpej }
1224 1.65 thorpej
1225 1.65 thorpej /*
1226 1.65 thorpej * Set/clear promiscuous mode on interface ifp based on the truth value
1227 1.65 thorpej * of pswitch. The calls are reference counted so that only the first
1228 1.65 thorpej * "on" request actually has an effect, as does the final "off" request.
1229 1.65 thorpej * Results are undefined if the "off" and "on" requests are not matched.
1230 1.65 thorpej */
1231 1.65 thorpej int
1232 1.163 thorpej ifpromisc(struct ifnet *ifp, int pswitch)
1233 1.65 thorpej {
1234 1.65 thorpej int pcount, ret;
1235 1.65 thorpej short flags;
1236 1.65 thorpej struct ifreq ifr;
1237 1.65 thorpej
1238 1.65 thorpej pcount = ifp->if_pcount;
1239 1.65 thorpej flags = ifp->if_flags;
1240 1.65 thorpej if (pswitch) {
1241 1.65 thorpej /*
1242 1.71 thorpej * Allow the device to be "placed" into promiscuous
1243 1.71 thorpej * mode even if it is not configured up. It will
1244 1.71 thorpej * consult IFF_PROMISC when it is is brought up.
1245 1.65 thorpej */
1246 1.68 pk if (ifp->if_pcount++ != 0)
1247 1.185 dyoung return 0;
1248 1.65 thorpej ifp->if_flags |= IFF_PROMISC;
1249 1.71 thorpej if ((ifp->if_flags & IFF_UP) == 0)
1250 1.185 dyoung return 0;
1251 1.65 thorpej } else {
1252 1.65 thorpej if (--ifp->if_pcount > 0)
1253 1.185 dyoung return 0;
1254 1.65 thorpej ifp->if_flags &= ~IFF_PROMISC;
1255 1.65 thorpej /*
1256 1.65 thorpej * If the device is not configured up, we should not need to
1257 1.65 thorpej * turn off promiscuous mode (device should have turned it
1258 1.65 thorpej * off when interface went down; and will look at IFF_PROMISC
1259 1.65 thorpej * again next time interface comes up).
1260 1.65 thorpej */
1261 1.65 thorpej if ((ifp->if_flags & IFF_UP) == 0)
1262 1.185 dyoung return 0;
1263 1.65 thorpej }
1264 1.65 thorpej memset(&ifr, 0, sizeof(ifr));
1265 1.65 thorpej ifr.ifr_flags = ifp->if_flags;
1266 1.183 christos ret = (*ifp->if_ioctl)(ifp, SIOCSIFFLAGS, (void *) &ifr);
1267 1.65 thorpej /* Restore interface state if not successful. */
1268 1.65 thorpej if (ret != 0) {
1269 1.65 thorpej ifp->if_pcount = pcount;
1270 1.65 thorpej ifp->if_flags = flags;
1271 1.65 thorpej }
1272 1.185 dyoung return ret;
1273 1.1 cgd }
1274 1.1 cgd
1275 1.1 cgd /*
1276 1.1 cgd * Map interface name to
1277 1.1 cgd * interface structure pointer.
1278 1.1 cgd */
1279 1.1 cgd struct ifnet *
1280 1.163 thorpej ifunit(const char *name)
1281 1.1 cgd {
1282 1.61 augustss struct ifnet *ifp;
1283 1.105 matt const char *cp = name;
1284 1.105 matt u_int unit = 0;
1285 1.105 matt u_int i;
1286 1.105 matt
1287 1.105 matt /*
1288 1.105 matt * If the entire name is a number, treat it as an ifindex.
1289 1.105 matt */
1290 1.105 matt for (i = 0; i < IFNAMSIZ && *cp >= '0' && *cp <= '9'; i++, cp++) {
1291 1.105 matt unit = unit * 10 + (*cp - '0');
1292 1.105 matt }
1293 1.105 matt
1294 1.105 matt /*
1295 1.105 matt * If the number took all of the name, then it's a valid ifindex.
1296 1.105 matt */
1297 1.105 matt if (i == IFNAMSIZ || (cp != name && *cp == '\0')) {
1298 1.137 itojun if (unit >= if_indexlim)
1299 1.185 dyoung return NULL;
1300 1.105 matt ifp = ifindex2ifnet[unit];
1301 1.105 matt if (ifp == NULL || ifp->if_output == if_nulloutput)
1302 1.185 dyoung return NULL;
1303 1.185 dyoung return ifp;
1304 1.105 matt }
1305 1.34 thorpej
1306 1.185 dyoung IFNET_FOREACH(ifp) {
1307 1.53 thorpej if (ifp->if_output == if_nulloutput)
1308 1.53 thorpej continue;
1309 1.53 thorpej if (strcmp(ifp->if_xname, name) == 0)
1310 1.185 dyoung return ifp;
1311 1.53 thorpej }
1312 1.185 dyoung return NULL;
1313 1.1 cgd }
1314 1.49 itojun
1315 1.1 cgd /*
1316 1.1 cgd * Interface ioctls.
1317 1.1 cgd */
1318 1.15 mycroft int
1319 1.183 christos ifioctl(struct socket *so, u_long cmd, void *data, struct lwp *l)
1320 1.1 cgd {
1321 1.61 augustss struct ifnet *ifp;
1322 1.61 augustss struct ifreq *ifr;
1323 1.89 thorpej struct ifcapreq *ifcr;
1324 1.105 matt struct ifdatareq *ifdr;
1325 1.89 thorpej int s, error = 0;
1326 1.191 christos #if defined(COMPAT_OSOCK) || defined(COMPAT_OIFREQ)
1327 1.191 christos u_long ocmd = cmd;
1328 1.191 christos #endif
1329 1.49 itojun short oif_flags;
1330 1.186 christos #ifdef COMPAT_OIFREQ
1331 1.186 christos struct ifreq ifrb;
1332 1.187 xtraeme struct oifreq *oifr = NULL;
1333 1.186 christos #endif
1334 1.1 cgd
1335 1.1 cgd switch (cmd) {
1336 1.186 christos #ifdef COMPAT_OIFREQ
1337 1.186 christos case OSIOCGIFCONF:
1338 1.186 christos case OOSIOCGIFCONF:
1339 1.186 christos return compat_ifconf(cmd, data);
1340 1.186 christos #endif
1341 1.1 cgd case SIOCGIFCONF:
1342 1.185 dyoung return ifconf(cmd, data);
1343 1.1 cgd }
1344 1.191 christos
1345 1.186 christos #ifdef COMPAT_OIFREQ
1346 1.196 skd cmd = compat_cvtcmd(cmd);
1347 1.186 christos if (cmd != ocmd) {
1348 1.186 christos oifr = data;
1349 1.186 christos data = ifr = &ifrb;
1350 1.186 christos ifreqo2n(oifr, ifr);
1351 1.186 christos } else
1352 1.186 christos #endif
1353 1.186 christos ifr = data;
1354 1.186 christos ifcr = data;
1355 1.186 christos ifdr = data;
1356 1.63 thorpej
1357 1.174 elad ifp = ifunit(ifr->ifr_name);
1358 1.174 elad
1359 1.63 thorpej switch (cmd) {
1360 1.63 thorpej case SIOCIFCREATE:
1361 1.63 thorpej case SIOCIFDESTROY:
1362 1.185 dyoung if (l != NULL) {
1363 1.174 elad error = kauth_authorize_network(l->l_cred,
1364 1.174 elad KAUTH_NETWORK_INTERFACE,
1365 1.174 elad KAUTH_REQ_NETWORK_INTERFACE_SETPRIV, ifp,
1366 1.174 elad (void *)cmd, NULL);
1367 1.185 dyoung if (error != 0)
1368 1.151 yamt return error;
1369 1.151 yamt }
1370 1.185 dyoung return (cmd == SIOCIFCREATE) ?
1371 1.64 thorpej if_clone_create(ifr->ifr_name) :
1372 1.185 dyoung if_clone_destroy(ifr->ifr_name);
1373 1.67 thorpej
1374 1.67 thorpej case SIOCIFGCLONERS:
1375 1.185 dyoung return if_clone_list((struct if_clonereq *)data);
1376 1.63 thorpej }
1377 1.63 thorpej
1378 1.185 dyoung if (ifp == NULL)
1379 1.185 dyoung return ENXIO;
1380 1.151 yamt
1381 1.151 yamt switch (cmd) {
1382 1.151 yamt case SIOCSIFFLAGS:
1383 1.151 yamt case SIOCSIFCAP:
1384 1.151 yamt case SIOCSIFMETRIC:
1385 1.151 yamt case SIOCZIFDATA:
1386 1.151 yamt case SIOCSIFMTU:
1387 1.151 yamt case SIOCSIFPHYADDR:
1388 1.151 yamt case SIOCDIFPHYADDR:
1389 1.151 yamt #ifdef INET6
1390 1.151 yamt case SIOCSIFPHYADDR_IN6:
1391 1.151 yamt #endif
1392 1.151 yamt case SIOCSLIFPHYADDR:
1393 1.151 yamt case SIOCADDMULTI:
1394 1.151 yamt case SIOCDELMULTI:
1395 1.151 yamt case SIOCSIFMEDIA:
1396 1.154 perry case SIOCSDRVSPEC:
1397 1.196 skd case SIOCG80211:
1398 1.196 skd case SIOCS80211:
1399 1.151 yamt case SIOCS80211NWID:
1400 1.151 yamt case SIOCS80211NWKEY:
1401 1.151 yamt case SIOCS80211POWER:
1402 1.151 yamt case SIOCS80211BSSID:
1403 1.151 yamt case SIOCS80211CHANNEL:
1404 1.185 dyoung if (l != NULL) {
1405 1.174 elad error = kauth_authorize_network(l->l_cred,
1406 1.174 elad KAUTH_NETWORK_INTERFACE,
1407 1.174 elad KAUTH_REQ_NETWORK_INTERFACE_SETPRIV, ifp,
1408 1.174 elad (void *)cmd, NULL);
1409 1.185 dyoung if (error != 0)
1410 1.151 yamt return error;
1411 1.151 yamt }
1412 1.151 yamt }
1413 1.151 yamt
1414 1.49 itojun oif_flags = ifp->if_flags;
1415 1.1 cgd switch (cmd) {
1416 1.1 cgd
1417 1.1 cgd case SIOCGIFFLAGS:
1418 1.1 cgd ifr->ifr_flags = ifp->if_flags;
1419 1.1 cgd break;
1420 1.1 cgd
1421 1.1 cgd case SIOCGIFMETRIC:
1422 1.1 cgd ifr->ifr_metric = ifp->if_metric;
1423 1.1 cgd break;
1424 1.7 hpeyerl
1425 1.36 mycroft case SIOCGIFMTU:
1426 1.37 cgd ifr->ifr_mtu = ifp->if_mtu;
1427 1.80 thorpej break;
1428 1.80 thorpej
1429 1.80 thorpej case SIOCGIFDLT:
1430 1.80 thorpej ifr->ifr_dlt = ifp->if_dlt;
1431 1.37 cgd break;
1432 1.36 mycroft
1433 1.1 cgd case SIOCSIFFLAGS:
1434 1.1 cgd if (ifp->if_flags & IFF_UP && (ifr->ifr_flags & IFF_UP) == 0) {
1435 1.89 thorpej s = splnet();
1436 1.1 cgd if_down(ifp);
1437 1.1 cgd splx(s);
1438 1.1 cgd }
1439 1.15 mycroft if (ifr->ifr_flags & IFF_UP && (ifp->if_flags & IFF_UP) == 0) {
1440 1.89 thorpej s = splnet();
1441 1.15 mycroft if_up(ifp);
1442 1.15 mycroft splx(s);
1443 1.15 mycroft }
1444 1.1 cgd ifp->if_flags = (ifp->if_flags & IFF_CANTCHANGE) |
1445 1.1 cgd (ifr->ifr_flags &~ IFF_CANTCHANGE);
1446 1.1 cgd if (ifp->if_ioctl)
1447 1.185 dyoung (void)(*ifp->if_ioctl)(ifp, cmd, data);
1448 1.1 cgd break;
1449 1.1 cgd
1450 1.89 thorpej case SIOCGIFCAP:
1451 1.89 thorpej ifcr->ifcr_capabilities = ifp->if_capabilities;
1452 1.89 thorpej ifcr->ifcr_capenable = ifp->if_capenable;
1453 1.89 thorpej break;
1454 1.89 thorpej
1455 1.89 thorpej case SIOCSIFCAP:
1456 1.89 thorpej if ((ifcr->ifcr_capenable & ~ifp->if_capabilities) != 0)
1457 1.185 dyoung return EINVAL;
1458 1.89 thorpej if (ifp->if_ioctl == NULL)
1459 1.185 dyoung return EOPNOTSUPP;
1460 1.89 thorpej
1461 1.89 thorpej /* Must prevent race with packet reception here. */
1462 1.89 thorpej s = splnet();
1463 1.89 thorpej if (ifcr->ifcr_capenable != ifp->if_capenable) {
1464 1.89 thorpej struct ifreq ifrq;
1465 1.89 thorpej
1466 1.89 thorpej ifrq.ifr_flags = ifp->if_flags;
1467 1.89 thorpej ifp->if_capenable = ifcr->ifcr_capenable;
1468 1.89 thorpej
1469 1.89 thorpej /* Pre-compute the checksum flags mask. */
1470 1.97 thorpej ifp->if_csum_flags_tx = 0;
1471 1.97 thorpej ifp->if_csum_flags_rx = 0;
1472 1.157 yamt if (ifp->if_capenable & IFCAP_CSUM_IPv4_Tx) {
1473 1.97 thorpej ifp->if_csum_flags_tx |= M_CSUM_IPv4;
1474 1.157 yamt }
1475 1.157 yamt if (ifp->if_capenable & IFCAP_CSUM_IPv4_Rx) {
1476 1.97 thorpej ifp->if_csum_flags_rx |= M_CSUM_IPv4;
1477 1.97 thorpej }
1478 1.97 thorpej
1479 1.157 yamt if (ifp->if_capenable & IFCAP_CSUM_TCPv4_Tx) {
1480 1.97 thorpej ifp->if_csum_flags_tx |= M_CSUM_TCPv4;
1481 1.157 yamt }
1482 1.157 yamt if (ifp->if_capenable & IFCAP_CSUM_TCPv4_Rx) {
1483 1.97 thorpej ifp->if_csum_flags_rx |= M_CSUM_TCPv4;
1484 1.157 yamt }
1485 1.97 thorpej
1486 1.157 yamt if (ifp->if_capenable & IFCAP_CSUM_UDPv4_Tx) {
1487 1.97 thorpej ifp->if_csum_flags_tx |= M_CSUM_UDPv4;
1488 1.157 yamt }
1489 1.157 yamt if (ifp->if_capenable & IFCAP_CSUM_UDPv4_Rx) {
1490 1.97 thorpej ifp->if_csum_flags_rx |= M_CSUM_UDPv4;
1491 1.157 yamt }
1492 1.97 thorpej
1493 1.157 yamt if (ifp->if_capenable & IFCAP_CSUM_TCPv6_Tx) {
1494 1.97 thorpej ifp->if_csum_flags_tx |= M_CSUM_TCPv6;
1495 1.157 yamt }
1496 1.157 yamt if (ifp->if_capenable & IFCAP_CSUM_TCPv6_Rx) {
1497 1.97 thorpej ifp->if_csum_flags_rx |= M_CSUM_TCPv6;
1498 1.97 thorpej }
1499 1.97 thorpej
1500 1.157 yamt if (ifp->if_capenable & IFCAP_CSUM_UDPv6_Tx) {
1501 1.97 thorpej ifp->if_csum_flags_tx |= M_CSUM_UDPv6;
1502 1.157 yamt }
1503 1.157 yamt if (ifp->if_capenable & IFCAP_CSUM_UDPv6_Rx) {
1504 1.97 thorpej ifp->if_csum_flags_rx |= M_CSUM_UDPv6;
1505 1.97 thorpej }
1506 1.89 thorpej
1507 1.89 thorpej /*
1508 1.89 thorpej * Only kick the interface if it's up. If it's
1509 1.89 thorpej * not up now, it will notice the cap enables
1510 1.89 thorpej * when it is brought up later.
1511 1.89 thorpej */
1512 1.89 thorpej if (ifp->if_flags & IFF_UP)
1513 1.185 dyoung (void)(*ifp->if_ioctl)(ifp, SIOCSIFFLAGS,
1514 1.185 dyoung (void *)&ifrq);
1515 1.89 thorpej }
1516 1.89 thorpej splx(s);
1517 1.89 thorpej break;
1518 1.89 thorpej
1519 1.1 cgd case SIOCSIFMETRIC:
1520 1.1 cgd ifp->if_metric = ifr->ifr_metric;
1521 1.105 matt break;
1522 1.105 matt
1523 1.105 matt case SIOCGIFDATA:
1524 1.105 matt ifdr->ifdr_data = ifp->if_data;
1525 1.105 matt break;
1526 1.105 matt
1527 1.105 matt case SIOCZIFDATA:
1528 1.105 matt ifdr->ifdr_data = ifp->if_data;
1529 1.105 matt /*
1530 1.105 matt * Assumes that the volatile counters that can be
1531 1.105 matt * zero'ed are at the end of if_data.
1532 1.105 matt */
1533 1.105 matt memset(&ifp->if_data.ifi_ipackets, 0, sizeof(ifp->if_data) -
1534 1.105 matt offsetof(struct if_data, ifi_ipackets));
1535 1.5 deraadt break;
1536 1.5 deraadt
1537 1.36 mycroft case SIOCSIFMTU:
1538 1.49 itojun {
1539 1.49 itojun u_long oldmtu = ifp->if_mtu;
1540 1.49 itojun
1541 1.49 itojun if (ifp->if_ioctl == NULL)
1542 1.185 dyoung return EOPNOTSUPP;
1543 1.49 itojun error = (*ifp->if_ioctl)(ifp, cmd, data);
1544 1.49 itojun
1545 1.49 itojun /*
1546 1.49 itojun * If the link MTU changed, do network layer specific procedure.
1547 1.49 itojun */
1548 1.49 itojun if (ifp->if_mtu != oldmtu) {
1549 1.49 itojun #ifdef INET6
1550 1.49 itojun nd6_setmtu(ifp);
1551 1.154 perry #endif
1552 1.49 itojun }
1553 1.49 itojun break;
1554 1.49 itojun }
1555 1.72 thorpej case SIOCSIFPHYADDR:
1556 1.72 thorpej case SIOCDIFPHYADDR:
1557 1.72 thorpej #ifdef INET6
1558 1.72 thorpej case SIOCSIFPHYADDR_IN6:
1559 1.72 thorpej #endif
1560 1.85 itojun case SIOCSLIFPHYADDR:
1561 1.15 mycroft case SIOCADDMULTI:
1562 1.15 mycroft case SIOCDELMULTI:
1563 1.39 thorpej case SIOCSIFMEDIA:
1564 1.74 itojun case SIOCGIFPSRCADDR:
1565 1.74 itojun case SIOCGIFPDSTADDR:
1566 1.85 itojun case SIOCGLIFPHYADDR:
1567 1.39 thorpej case SIOCGIFMEDIA:
1568 1.196 skd case SIOCG80211:
1569 1.196 skd case SIOCS80211:
1570 1.196 skd case SIOCS80211NWID:
1571 1.196 skd case SIOCS80211NWKEY:
1572 1.196 skd case SIOCS80211POWER:
1573 1.196 skd case SIOCS80211BSSID:
1574 1.196 skd case SIOCS80211CHANNEL:
1575 1.185 dyoung if (ifp->if_ioctl == NULL)
1576 1.185 dyoung return EOPNOTSUPP;
1577 1.49 itojun error = (*ifp->if_ioctl)(ifp, cmd, data);
1578 1.49 itojun break;
1579 1.1 cgd
1580 1.154 perry case SIOCSDRVSPEC:
1581 1.1 cgd default:
1582 1.185 dyoung if (so->so_proto == NULL)
1583 1.185 dyoung return EOPNOTSUPP;
1584 1.161 christos #ifdef COMPAT_OSOCK
1585 1.186 christos error = compat_ifioctl(so, ocmd, cmd, data, l);
1586 1.161 christos #else
1587 1.49 itojun error = ((*so->so_proto->pr_usrreq)(so, PRU_CONTROL,
1588 1.36 mycroft (struct mbuf *)cmd, (struct mbuf *)data,
1589 1.162 christos (struct mbuf *)ifp, l));
1590 1.1 cgd #endif
1591 1.49 itojun break;
1592 1.49 itojun }
1593 1.1 cgd
1594 1.49 itojun if (((oif_flags ^ ifp->if_flags) & IFF_UP) != 0) {
1595 1.49 itojun #ifdef INET6
1596 1.49 itojun if ((ifp->if_flags & IFF_UP) != 0) {
1597 1.89 thorpej s = splnet();
1598 1.49 itojun in6_if_up(ifp);
1599 1.49 itojun splx(s);
1600 1.49 itojun }
1601 1.1 cgd #endif
1602 1.1 cgd }
1603 1.186 christos #ifdef COMPAT_OIFREQ
1604 1.186 christos if (cmd != ocmd)
1605 1.186 christos ifreqn2o(oifr, ifr);
1606 1.186 christos #endif
1607 1.49 itojun
1608 1.185 dyoung return error;
1609 1.1 cgd }
1610 1.1 cgd
1611 1.1 cgd /*
1612 1.1 cgd * Return interface configuration
1613 1.1 cgd * of system. List may be used
1614 1.1 cgd * in later ioctl's (above) to get
1615 1.1 cgd * other information.
1616 1.200 gdt *
1617 1.200 gdt * Each record is a struct ifreq. Before the addition of
1618 1.200 gdt * sockaddr_storage, the API rule was that sockaddr flavors that did
1619 1.200 gdt * not fit would extend beyond the struct ifreq, with the next struct
1620 1.200 gdt * ifreq starting sa_len beyond the struct sockaddr. Because the
1621 1.200 gdt * union in struct ifreq includes struct sockaddr_storage, every kind
1622 1.200 gdt * of sockaddr must fit. Thus, there are no longer any overlength
1623 1.200 gdt * records.
1624 1.200 gdt *
1625 1.200 gdt * Records are added to the user buffer if they fit, and ifc_len is
1626 1.200 gdt * adjusted to the length that was written. Thus, the user is only
1627 1.200 gdt * assured of getting the complete list if ifc_len on return is at
1628 1.200 gdt * least sizeof(struct ifreq) less than it was on entry.
1629 1.200 gdt *
1630 1.200 gdt * If the user buffer pointer is NULL, this routine copies no data and
1631 1.200 gdt * returns the amount of space that would be needed.
1632 1.200 gdt *
1633 1.200 gdt * Invariants:
1634 1.200 gdt * ifrp points to the next part of the user's buffer to be used. If
1635 1.200 gdt * ifrp != NULL, space holds the number of bytes remaining that we may
1636 1.200 gdt * write at ifrp. Otherwise, space holds the number of bytes that
1637 1.200 gdt * would have been written had there been adequate space.
1638 1.1 cgd */
1639 1.1 cgd /*ARGSUSED*/
1640 1.15 mycroft int
1641 1.183 christos ifconf(u_long cmd, void *data)
1642 1.1 cgd {
1643 1.61 augustss struct ifconf *ifc = (struct ifconf *)data;
1644 1.61 augustss struct ifnet *ifp;
1645 1.61 augustss struct ifaddr *ifa;
1646 1.1 cgd struct ifreq ifr, *ifrp;
1647 1.190 enami int space, error = 0;
1648 1.200 gdt const int sz = (int)sizeof(struct ifreq);
1649 1.1 cgd
1650 1.190 enami if ((ifrp = ifc->ifc_req) == NULL)
1651 1.127 christos space = 0;
1652 1.190 enami else
1653 1.190 enami space = ifc->ifc_len;
1654 1.153 matt IFNET_FOREACH(ifp) {
1655 1.175 christos (void)strncpy(ifr.ifr_name, ifp->if_xname,
1656 1.173 christos sizeof(ifr.ifr_name));
1657 1.175 christos if (ifr.ifr_name[sizeof(ifr.ifr_name) - 1] != '\0')
1658 1.175 christos return ENAMETOOLONG;
1659 1.205 dyoung if (IFADDR_EMPTY(ifp)) {
1660 1.200 gdt /* Interface with no addresses - send zero sockaddr. */
1661 1.127 christos memset(&ifr.ifr_addr, 0, sizeof(ifr.ifr_addr));
1662 1.200 gdt if (ifrp != NULL)
1663 1.200 gdt {
1664 1.200 gdt if (space >= sz) {
1665 1.200 gdt error = copyout(&ifr, ifrp, sz);
1666 1.200 gdt if (error != 0)
1667 1.200 gdt return (error);
1668 1.200 gdt ifrp++; space -= sz;
1669 1.200 gdt }
1670 1.70 mellon }
1671 1.200 gdt else
1672 1.200 gdt space += sz;
1673 1.127 christos continue;
1674 1.127 christos }
1675 1.127 christos
1676 1.204 dyoung IFADDR_FOREACH(ifa, ifp) {
1677 1.61 augustss struct sockaddr *sa = ifa->ifa_addr;
1678 1.200 gdt /* all sockaddrs must fit in sockaddr_storage */
1679 1.200 gdt KASSERT(sa->sa_len <= sizeof(ifr.ifr_ifru));
1680 1.200 gdt
1681 1.200 gdt if (ifrp != NULL)
1682 1.200 gdt {
1683 1.201 gdt memcpy(&ifr.ifr_space, sa, sa->sa_len);
1684 1.190 enami if (space >= sz) {
1685 1.127 christos error = copyout(&ifr, ifrp, sz);
1686 1.200 gdt if (error != 0)
1687 1.200 gdt return (error);
1688 1.200 gdt ifrp++; space -= sz;
1689 1.70 mellon }
1690 1.1 cgd }
1691 1.200 gdt else
1692 1.200 gdt space += sz;
1693 1.1 cgd }
1694 1.1 cgd }
1695 1.127 christos if (ifrp != NULL)
1696 1.200 gdt {
1697 1.200 gdt KASSERT(0 <= space && space <= ifc->ifc_len);
1698 1.127 christos ifc->ifc_len -= space;
1699 1.200 gdt }
1700 1.127 christos else
1701 1.200 gdt {
1702 1.200 gdt KASSERT(space >= 0);
1703 1.200 gdt ifc->ifc_len = space;
1704 1.200 gdt }
1705 1.190 enami return (0);
1706 1.1 cgd }
1707 1.133 jonathan
1708 1.198 dyoung int
1709 1.198 dyoung ifreq_setaddr(const u_long cmd, struct ifreq *ifr, const struct sockaddr *sa)
1710 1.198 dyoung {
1711 1.198 dyoung uint8_t len;
1712 1.198 dyoung u_long ncmd;
1713 1.198 dyoung const uint8_t osockspace = sizeof(ifr->ifr_addr);
1714 1.198 dyoung const uint8_t sockspace = sizeof(ifr->ifr_ifru.ifru_space);
1715 1.198 dyoung
1716 1.199 dyoung #ifdef INET6
1717 1.198 dyoung if (cmd == SIOCGIFPSRCADDR_IN6 || cmd == SIOCGIFPDSTADDR_IN6)
1718 1.198 dyoung len = MIN(sizeof(struct sockaddr_in6), sa->sa_len);
1719 1.199 dyoung else
1720 1.199 dyoung #endif /* INET6 */
1721 1.199 dyoung if ((ncmd = compat_cvtcmd(cmd)) != cmd)
1722 1.202 dyoung len = MIN(osockspace, sa->sa_len);
1723 1.202 dyoung else
1724 1.198 dyoung len = MIN(sockspace, sa->sa_len);
1725 1.198 dyoung if (len < sa->sa_len)
1726 1.198 dyoung return EFBIG;
1727 1.202 dyoung sockaddr_copy(&ifr->ifr_addr, len, sa);
1728 1.198 dyoung return 0;
1729 1.198 dyoung }
1730 1.198 dyoung
1731 1.155 christos /*
1732 1.155 christos * Queue message on interface, and start output if interface
1733 1.155 christos * not yet active.
1734 1.155 christos */
1735 1.155 christos int
1736 1.155 christos ifq_enqueue(struct ifnet *ifp, struct mbuf *m
1737 1.155 christos ALTQ_COMMA ALTQ_DECL(struct altq_pktattr *pktattr))
1738 1.155 christos {
1739 1.155 christos int len = m->m_pkthdr.len;
1740 1.155 christos int mflags = m->m_flags;
1741 1.155 christos int s = splnet();
1742 1.155 christos int error;
1743 1.155 christos
1744 1.156 christos IFQ_ENQUEUE(&ifp->if_snd, m, pktattr, error);
1745 1.185 dyoung if (error != 0)
1746 1.185 dyoung goto out;
1747 1.155 christos ifp->if_obytes += len;
1748 1.155 christos if (mflags & M_MCAST)
1749 1.155 christos ifp->if_omcasts++;
1750 1.155 christos if ((ifp->if_flags & IFF_OACTIVE) == 0)
1751 1.155 christos (*ifp->if_start)(ifp);
1752 1.185 dyoung out:
1753 1.155 christos splx(s);
1754 1.155 christos return error;
1755 1.155 christos }
1756 1.155 christos
1757 1.155 christos /*
1758 1.155 christos * Queue message on interface, possibly using a second fast queue
1759 1.155 christos */
1760 1.155 christos int
1761 1.155 christos ifq_enqueue2(struct ifnet *ifp, struct ifqueue *ifq, struct mbuf *m
1762 1.155 christos ALTQ_COMMA ALTQ_DECL(struct altq_pktattr *pktattr))
1763 1.155 christos {
1764 1.155 christos int error = 0;
1765 1.155 christos
1766 1.155 christos if (ifq != NULL
1767 1.155 christos #ifdef ALTQ
1768 1.155 christos && ALTQ_IS_ENABLED(&ifp->if_snd) == 0
1769 1.155 christos #endif
1770 1.155 christos ) {
1771 1.155 christos if (IF_QFULL(ifq)) {
1772 1.155 christos IF_DROP(&ifp->if_snd);
1773 1.155 christos m_freem(m);
1774 1.155 christos if (error == 0)
1775 1.155 christos error = ENOBUFS;
1776 1.185 dyoung } else
1777 1.155 christos IF_ENQUEUE(ifq, m);
1778 1.155 christos } else
1779 1.156 christos IFQ_ENQUEUE(&ifp->if_snd, m, pktattr, error);
1780 1.155 christos if (error != 0) {
1781 1.155 christos ++ifp->if_oerrors;
1782 1.155 christos return error;
1783 1.155 christos }
1784 1.155 christos return 0;
1785 1.155 christos }
1786 1.155 christos
1787 1.155 christos
1788 1.138 drochner #if defined(INET) || defined(INET6)
1789 1.136 atatat static void
1790 1.139 atatat sysctl_net_ifq_setup(struct sysctllog **clog,
1791 1.139 atatat int pf, const char *pfname,
1792 1.136 atatat int ipn, const char *ipname,
1793 1.136 atatat int qid, struct ifqueue *ifq)
1794 1.136 atatat {
1795 1.136 atatat
1796 1.139 atatat sysctl_createv(clog, 0, NULL, NULL,
1797 1.139 atatat CTLFLAG_PERMANENT,
1798 1.136 atatat CTLTYPE_NODE, "net", NULL,
1799 1.136 atatat NULL, 0, NULL, 0,
1800 1.136 atatat CTL_NET, CTL_EOL);
1801 1.139 atatat sysctl_createv(clog, 0, NULL, NULL,
1802 1.139 atatat CTLFLAG_PERMANENT,
1803 1.136 atatat CTLTYPE_NODE, pfname, NULL,
1804 1.136 atatat NULL, 0, NULL, 0,
1805 1.136 atatat CTL_NET, pf, CTL_EOL);
1806 1.139 atatat sysctl_createv(clog, 0, NULL, NULL,
1807 1.139 atatat CTLFLAG_PERMANENT,
1808 1.136 atatat CTLTYPE_NODE, ipname, NULL,
1809 1.136 atatat NULL, 0, NULL, 0,
1810 1.136 atatat CTL_NET, pf, ipn, CTL_EOL);
1811 1.139 atatat sysctl_createv(clog, 0, NULL, NULL,
1812 1.139 atatat CTLFLAG_PERMANENT,
1813 1.142 atatat CTLTYPE_NODE, "ifq",
1814 1.142 atatat SYSCTL_DESCR("Protocol input queue controls"),
1815 1.139 atatat NULL, 0, NULL, 0,
1816 1.139 atatat CTL_NET, pf, ipn, qid, CTL_EOL);
1817 1.136 atatat
1818 1.139 atatat sysctl_createv(clog, 0, NULL, NULL,
1819 1.139 atatat CTLFLAG_PERMANENT,
1820 1.142 atatat CTLTYPE_INT, "len",
1821 1.142 atatat SYSCTL_DESCR("Current input queue length"),
1822 1.136 atatat NULL, 0, &ifq->ifq_len, 0,
1823 1.136 atatat CTL_NET, pf, ipn, qid, IFQCTL_LEN, CTL_EOL);
1824 1.139 atatat sysctl_createv(clog, 0, NULL, NULL,
1825 1.139 atatat CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
1826 1.142 atatat CTLTYPE_INT, "maxlen",
1827 1.142 atatat SYSCTL_DESCR("Maximum allowed input queue length"),
1828 1.136 atatat NULL, 0, &ifq->ifq_maxlen, 0,
1829 1.136 atatat CTL_NET, pf, ipn, qid, IFQCTL_MAXLEN, CTL_EOL);
1830 1.133 jonathan #ifdef notyet
1831 1.139 atatat sysctl_createv(clog, 0, NULL, NULL,
1832 1.139 atatat CTLFLAG_PERMANENT,
1833 1.142 atatat CTLTYPE_INT, "peak",
1834 1.142 atatat SYSCTL_DESCR("Highest input queue length"),
1835 1.136 atatat NULL, 0, &ifq->ifq_peak, 0,
1836 1.136 atatat CTL_NET, pf, ipn, qid, IFQCTL_PEAK, CTL_EOL);
1837 1.136 atatat #endif
1838 1.139 atatat sysctl_createv(clog, 0, NULL, NULL,
1839 1.139 atatat CTLFLAG_PERMANENT,
1840 1.142 atatat CTLTYPE_INT, "drops",
1841 1.142 atatat SYSCTL_DESCR("Packets dropped due to full input queue"),
1842 1.136 atatat NULL, 0, &ifq->ifq_drops, 0,
1843 1.136 atatat CTL_NET, pf, ipn, qid, IFQCTL_DROPS, CTL_EOL);
1844 1.136 atatat }
1845 1.136 atatat
1846 1.136 atatat #ifdef INET
1847 1.136 atatat SYSCTL_SETUP(sysctl_net_inet_ip_ifq_setup,
1848 1.136 atatat "sysctl net.inet.ip.ifq subtree setup")
1849 1.136 atatat {
1850 1.136 atatat extern struct ifqueue ipintrq;
1851 1.136 atatat
1852 1.139 atatat sysctl_net_ifq_setup(clog, PF_INET, "inet", IPPROTO_IP, "ip",
1853 1.136 atatat IPCTL_IFQ, &ipintrq);
1854 1.133 jonathan }
1855 1.136 atatat #endif /* INET */
1856 1.133 jonathan
1857 1.136 atatat #ifdef INET6
1858 1.136 atatat SYSCTL_SETUP(sysctl_net_inet6_ip6_ifq_setup,
1859 1.136 atatat "sysctl net.inet6.ip6.ifq subtree setup")
1860 1.136 atatat {
1861 1.136 atatat extern struct ifqueue ip6intrq;
1862 1.136 atatat
1863 1.139 atatat sysctl_net_ifq_setup(clog, PF_INET6, "inet6", IPPROTO_IPV6, "ip6",
1864 1.136 atatat IPV6CTL_IFQ, &ip6intrq);
1865 1.136 atatat }
1866 1.136 atatat #endif /* INET6 */
1867 1.138 drochner #endif /* INET || INET6 */
1868