if.h revision 1.178 1 1.178 ozaki /* $NetBSD: if.h,v 1.178 2014/11/26 07:43:04 ozaki-r Exp $ */
2 1.44 thorpej
3 1.44 thorpej /*-
4 1.70 thorpej * Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc.
5 1.44 thorpej * All rights reserved.
6 1.44 thorpej *
7 1.44 thorpej * This code is derived from software contributed to The NetBSD Foundation
8 1.106 agc * by William Studenmund and Jason R. Thorpe.
9 1.44 thorpej *
10 1.44 thorpej * Redistribution and use in source and binary forms, with or without
11 1.44 thorpej * modification, are permitted provided that the following conditions
12 1.44 thorpej * are met:
13 1.44 thorpej * 1. Redistributions of source code must retain the above copyright
14 1.44 thorpej * notice, this list of conditions and the following disclaimer.
15 1.44 thorpej * 2. Redistributions in binary form must reproduce the above copyright
16 1.44 thorpej * notice, this list of conditions and the following disclaimer in the
17 1.44 thorpej * documentation and/or other materials provided with the distribution.
18 1.44 thorpej *
19 1.44 thorpej * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 1.44 thorpej * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 1.44 thorpej * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 1.44 thorpej * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 1.44 thorpej * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 1.44 thorpej * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 1.44 thorpej * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 1.44 thorpej * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 1.44 thorpej * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 1.44 thorpej * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 1.44 thorpej * POSSIBILITY OF SUCH DAMAGE.
30 1.44 thorpej */
31 1.10 cgd
32 1.1 cgd /*
33 1.9 mycroft * Copyright (c) 1982, 1986, 1989, 1993
34 1.9 mycroft * The Regents of the University of California. All rights reserved.
35 1.1 cgd *
36 1.1 cgd * Redistribution and use in source and binary forms, with or without
37 1.1 cgd * modification, are permitted provided that the following conditions
38 1.1 cgd * are met:
39 1.1 cgd * 1. Redistributions of source code must retain the above copyright
40 1.1 cgd * notice, this list of conditions and the following disclaimer.
41 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright
42 1.1 cgd * notice, this list of conditions and the following disclaimer in the
43 1.1 cgd * documentation and/or other materials provided with the distribution.
44 1.92 agc * 3. Neither the name of the University nor the names of its contributors
45 1.1 cgd * may be used to endorse or promote products derived from this software
46 1.1 cgd * without specific prior written permission.
47 1.1 cgd *
48 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
49 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
50 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
51 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
52 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
53 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
54 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
56 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
57 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
58 1.1 cgd * SUCH DAMAGE.
59 1.1 cgd *
60 1.30 fvdl * @(#)if.h 8.3 (Berkeley) 2/9/95
61 1.1 cgd */
62 1.1 cgd
63 1.28 chuck #ifndef _NET_IF_H_
64 1.28 chuck #define _NET_IF_H_
65 1.28 chuck
66 1.152 dyoung #if !defined(_KERNEL) && !defined(_STANDALONE)
67 1.152 dyoung #include <stdbool.h>
68 1.152 dyoung #endif
69 1.152 dyoung
70 1.87 bjh21 #include <sys/featuretest.h>
71 1.88 bjh21
72 1.88 bjh21 /*
73 1.88 bjh21 * Length of interface external name, including terminating '\0'.
74 1.88 bjh21 * Note: this is the same size as a generic device's external name.
75 1.88 bjh21 */
76 1.88 bjh21 #define IF_NAMESIZE 16
77 1.88 bjh21
78 1.87 bjh21 #if defined(_NETBSD_SOURCE)
79 1.38 kleink
80 1.81 soren #include <sys/socket.h>
81 1.17 mycroft #include <sys/queue.h>
82 1.170 ozaki #include <sys/mutex.h>
83 1.166 ozaki
84 1.60 thorpej #include <net/dlt.h>
85 1.67 thorpej #include <net/pfil.h>
86 1.167 ozaki #ifdef _KERNEL
87 1.166 ozaki #include <net/pktqueue.h>
88 1.167 ozaki #endif
89 1.17 mycroft
90 1.169 ozaki //#define NET_MPSAFE 1
91 1.169 ozaki
92 1.1 cgd /*
93 1.58 thorpej * Always include ALTQ glue here -- we use the ALTQ interface queue
94 1.58 thorpej * structure even when ALTQ is not configured into the kernel so that
95 1.58 thorpej * the size of struct ifnet does not changed based on the option. The
96 1.58 thorpej * ALTQ queue structure is API-compatible with the legacy ifqueue.
97 1.58 thorpej */
98 1.58 thorpej #include <altq/if_altq.h>
99 1.58 thorpej
100 1.58 thorpej /*
101 1.1 cgd * Structures defining a network interface, providing a packet
102 1.1 cgd * transport mechanism (ala level 0 of the PUP protocols).
103 1.1 cgd *
104 1.1 cgd * Each interface accepts output datagrams of a specified maximum
105 1.1 cgd * length, and provides higher level routines with input datagrams
106 1.1 cgd * received from its medium.
107 1.1 cgd *
108 1.9 mycroft * Output occurs when the routine if_output is called, with four parameters:
109 1.9 mycroft * (*ifp->if_output)(ifp, m, dst, rt)
110 1.1 cgd * Here m is the mbuf chain to be sent and dst is the destination address.
111 1.1 cgd * The output routine encapsulates the supplied datagram if necessary,
112 1.1 cgd * and then transmits it on its medium.
113 1.1 cgd *
114 1.1 cgd * On input, each interface unwraps the data received by it, and either
115 1.1 cgd * places it on the input queue of a internetwork datagram routine
116 1.1 cgd * and posts the associated software interrupt, or passes the datagram to a raw
117 1.1 cgd * packet input routine.
118 1.1 cgd *
119 1.1 cgd * Routines exist for locating interfaces by their addresses
120 1.1 cgd * or for locating a interface on a certain network, as well as more general
121 1.1 cgd * routing and gateway routines maintaining information used to locate
122 1.1 cgd * interfaces. These routines live in the files if.c and route.c
123 1.1 cgd */
124 1.1 cgd #include <sys/time.h>
125 1.1 cgd
126 1.69 mrg #if defined(_KERNEL_OPT)
127 1.42 bouyer #include "opt_compat_netbsd.h"
128 1.42 bouyer #endif
129 1.42 bouyer
130 1.9 mycroft struct mbuf;
131 1.9 mycroft struct proc;
132 1.9 mycroft struct rtentry;
133 1.9 mycroft struct socket;
134 1.9 mycroft struct ether_header;
135 1.120 dyoung struct ifaddr;
136 1.51 thorpej struct ifnet;
137 1.65 itojun struct rt_addrinfo;
138 1.51 thorpej
139 1.88 bjh21 #define IFNAMSIZ IF_NAMESIZE
140 1.53 thorpej
141 1.53 thorpej /*
142 1.51 thorpej * Structure describing a `cloning' interface.
143 1.51 thorpej */
144 1.51 thorpej struct if_clone {
145 1.51 thorpej LIST_ENTRY(if_clone) ifc_list; /* on list of cloners */
146 1.51 thorpej const char *ifc_name; /* name of device, e.g. `gif' */
147 1.51 thorpej size_t ifc_namelen; /* length of name */
148 1.51 thorpej
149 1.51 thorpej int (*ifc_create)(struct if_clone *, int);
150 1.98 peter int (*ifc_destroy)(struct ifnet *);
151 1.51 thorpej };
152 1.51 thorpej
153 1.51 thorpej #define IF_CLONE_INITIALIZER(name, create, destroy) \
154 1.119 christos { { NULL, NULL }, name, sizeof(name) - 1, create, destroy }
155 1.9 mycroft
156 1.1 cgd /*
157 1.53 thorpej * Structure used to query names of interface cloners.
158 1.53 thorpej */
159 1.53 thorpej struct if_clonereq {
160 1.53 thorpej int ifcr_total; /* total cloners (out) */
161 1.53 thorpej int ifcr_count; /* room for this many in user buffer */
162 1.53 thorpej char *ifcr_buffer; /* buffer for cloner names */
163 1.53 thorpej };
164 1.53 thorpej
165 1.53 thorpej /*
166 1.12 cgd * Structure defining statistics and other data kept regarding a network
167 1.12 cgd * interface.
168 1.12 cgd */
169 1.46 thorpej struct if_data {
170 1.12 cgd /* generic interface information */
171 1.12 cgd u_char ifi_type; /* ethernet, tokenring, etc. */
172 1.12 cgd u_char ifi_addrlen; /* media address length */
173 1.12 cgd u_char ifi_hdrlen; /* media header length */
174 1.46 thorpej int ifi_link_state; /* current link state */
175 1.145 dyoung uint64_t ifi_mtu; /* maximum transmission unit */
176 1.145 dyoung uint64_t ifi_metric; /* routing metric (external only) */
177 1.145 dyoung uint64_t ifi_baudrate; /* linespeed */
178 1.42 bouyer /* volatile statistics */
179 1.145 dyoung uint64_t ifi_ipackets; /* packets received on interface */
180 1.145 dyoung uint64_t ifi_ierrors; /* input errors on interface */
181 1.145 dyoung uint64_t ifi_opackets; /* packets sent on interface */
182 1.145 dyoung uint64_t ifi_oerrors; /* output errors on interface */
183 1.145 dyoung uint64_t ifi_collisions; /* collisions on csma interfaces */
184 1.145 dyoung uint64_t ifi_ibytes; /* total number of octets received */
185 1.145 dyoung uint64_t ifi_obytes; /* total number of octets sent */
186 1.145 dyoung uint64_t ifi_imcasts; /* packets received via multicast */
187 1.145 dyoung uint64_t ifi_omcasts; /* packets sent via multicast */
188 1.145 dyoung uint64_t ifi_iqdrops; /* dropped on input, this interface */
189 1.145 dyoung uint64_t ifi_noproto; /* destined for unsupported protocol */
190 1.142 christos struct timespec ifi_lastchange;/* last operational state change */
191 1.42 bouyer };
192 1.42 bouyer
193 1.46 thorpej /*
194 1.46 thorpej * Values for if_link_state.
195 1.46 thorpej */
196 1.46 thorpej #define LINK_STATE_UNKNOWN 0 /* link invalid/unknown */
197 1.46 thorpej #define LINK_STATE_DOWN 1 /* link is down */
198 1.46 thorpej #define LINK_STATE_UP 2 /* link is up */
199 1.46 thorpej
200 1.12 cgd /*
201 1.1 cgd * Structure defining a queue for a network interface.
202 1.55 thorpej */
203 1.55 thorpej struct ifqueue {
204 1.169 ozaki struct mbuf *ifq_head;
205 1.169 ozaki struct mbuf *ifq_tail;
206 1.169 ozaki int ifq_len;
207 1.169 ozaki int ifq_maxlen;
208 1.169 ozaki int ifq_drops;
209 1.169 ozaki kmutex_t *ifq_lock;
210 1.55 thorpej };
211 1.55 thorpej
212 1.153 dyoung struct ifnet_lock;
213 1.153 dyoung
214 1.153 dyoung #ifdef _KERNEL
215 1.153 dyoung #include <sys/condvar.h>
216 1.153 dyoung #include <sys/percpu.h>
217 1.178 ozaki #include <sys/callout.h>
218 1.153 dyoung
219 1.153 dyoung struct ifnet_lock {
220 1.154 dyoung kmutex_t il_lock; /* Protects the critical section. */
221 1.154 dyoung uint64_t il_nexit; /* Counts threads across all CPUs who
222 1.154 dyoung * have exited the critical section.
223 1.154 dyoung * Access to il_nexit is synchronized
224 1.154 dyoung * by il_lock.
225 1.154 dyoung */
226 1.154 dyoung percpu_t *il_nenter; /* Counts threads on each CPU who have
227 1.154 dyoung * entered or who wait to enter the
228 1.154 dyoung * critical section protected by il_lock.
229 1.154 dyoung * Synchronization is not required.
230 1.154 dyoung */
231 1.154 dyoung kcondvar_t il_emptied; /* The ifnet_lock user must arrange for
232 1.154 dyoung * the last threads in the critical
233 1.154 dyoung * section to signal this condition variable
234 1.154 dyoung * before they leave.
235 1.154 dyoung */
236 1.153 dyoung };
237 1.153 dyoung #endif /* _KERNEL */
238 1.153 dyoung
239 1.55 thorpej /*
240 1.55 thorpej * Structure defining a queue for a network interface.
241 1.1 cgd *
242 1.1 cgd * (Would like to call this struct ``if'', but C isn't PL/1.)
243 1.1 cgd */
244 1.19 cgd TAILQ_HEAD(ifnet_head, ifnet); /* the actual queue head */
245 1.23 thorpej
246 1.172 ozaki struct bridge_softc;
247 1.172 ozaki struct bridge_iflist;
248 1.172 ozaki
249 1.149 rmind typedef struct ifnet {
250 1.23 thorpej void *if_softc; /* lower-level data for this if */
251 1.17 mycroft TAILQ_ENTRY(ifnet) if_list; /* all struct ifnets are chained */
252 1.17 mycroft TAILQ_HEAD(, ifaddr) if_addrlist; /* linked list of addresses per if */
253 1.23 thorpej char if_xname[IFNAMSIZ]; /* external name (name + unit) */
254 1.9 mycroft int if_pcount; /* number of promiscuous listeners */
255 1.146 pooka struct bpf_if *if_bpf; /* packet filter structure */
256 1.9 mycroft u_short if_index; /* numeric abbreviation for this if */
257 1.177 ozaki short if_timer; /* time 'til if_slowtimo called */
258 1.1 cgd short if_flags; /* up/down, broadcast, etc. */
259 1.25 gwr short if__pad1; /* be nice to m68k ports */
260 1.12 cgd struct if_data if_data; /* statistics and other data about if */
261 1.44 thorpej /*
262 1.44 thorpej * Procedure handles. If you add more of these, don't forget the
263 1.44 thorpej * corresponding NULL stub in if.c.
264 1.44 thorpej */
265 1.9 mycroft int (*if_output) /* output routine (enqueue) */
266 1.122 dyoung (struct ifnet *, struct mbuf *, const struct sockaddr *,
267 1.114 thorpej struct rtentry *);
268 1.36 thorpej void (*if_input) /* input routine (from h/w driver) */
269 1.114 thorpej (struct ifnet *, struct mbuf *);
270 1.16 mycroft void (*if_start) /* initiate output routine */
271 1.114 thorpej (struct ifnet *);
272 1.9 mycroft int (*if_ioctl) /* ioctl routine */
273 1.123 christos (struct ifnet *, u_long, void *);
274 1.54 thorpej int (*if_init) /* init routine */
275 1.114 thorpej (struct ifnet *);
276 1.54 thorpej void (*if_stop) /* stop routine */
277 1.114 thorpej (struct ifnet *, int);
278 1.177 ozaki void (*if_slowtimo) /* timer routine */
279 1.114 thorpej (struct ifnet *);
280 1.177 ozaki #define if_watchdog if_slowtimo
281 1.32 matt void (*if_drain) /* routine to release resources */
282 1.114 thorpej (struct ifnet *);
283 1.55 thorpej struct ifaltq if_snd; /* output queue (includes altq) */
284 1.131 dyoung struct ifaddr *if_dl; /* identity of this interface. */
285 1.141 dyoung const struct sockaddr_dl *if_sadl; /* pointer to sockaddr_dl
286 1.141 dyoung * of if_dl
287 1.141 dyoung */
288 1.141 dyoung /* if_hwdl: h/w identity
289 1.141 dyoung *
290 1.141 dyoung * May be NULL. If not NULL, it is the address assigned
291 1.141 dyoung * to the interface by the manufacturer, so it very likely
292 1.141 dyoung * to be unique. It MUST NOT be deleted. It is highly
293 1.141 dyoung * suitable for deriving the EUI64 for the interface.
294 1.141 dyoung */
295 1.141 dyoung struct ifaddr *if_hwdl;
296 1.99 yamt const uint8_t *if_broadcastaddr;/* linklevel broadcast bytestring */
297 1.172 ozaki struct bridge_softc *if_bridge; /* bridge glue */
298 1.172 ozaki struct bridge_iflist *if_bridgeif; /* shortcut to interface list entry */
299 1.59 thorpej int if_dlt; /* data link type (<net/dlt.h>) */
300 1.156 rmind pfil_head_t * if_pfil; /* filtering point */
301 1.70 thorpej uint64_t if_capabilities; /* interface capabilities */
302 1.70 thorpej uint64_t if_capenable; /* capabilities enabled */
303 1.116 liamjfoy union {
304 1.123 christos void * carp_s; /* carp structure (used by !carp ifs) */
305 1.116 liamjfoy struct ifnet *carp_d;/* ptr to carpdev (used by carp ifs) */
306 1.116 liamjfoy } if_carp_ptr;
307 1.116 liamjfoy #define if_carp if_carp_ptr.carp_s
308 1.116 liamjfoy #define if_carpdev if_carp_ptr.carp_d
309 1.70 thorpej /*
310 1.70 thorpej * These are pre-computed based on an interfaces enabled
311 1.70 thorpej * capabilities, for speed elsewhere.
312 1.70 thorpej */
313 1.74 thorpej int if_csum_flags_tx; /* M_CSUM_* flags for Tx */
314 1.74 thorpej int if_csum_flags_rx; /* M_CSUM_* flags for Rx */
315 1.77 itojun
316 1.77 itojun void *if_afdata[AF_MAX];
317 1.85 matt struct mowner *if_mowner; /* who owns mbufs for this interface */
318 1.104 yamt
319 1.118 yamt void *if_agrprivate; /* used only when #if NAGR > 0 */
320 1.139 yamt
321 1.139 yamt /*
322 1.139 yamt * pf specific data, used only when #if NPF > 0.
323 1.139 yamt */
324 1.139 yamt void *if_pf_kif; /* pf interface abstraction */
325 1.139 yamt void *if_pf_groups; /* pf interface groups */
326 1.143 dyoung /*
327 1.143 dyoung * During an ifnet's lifetime, it has only one if_index, but
328 1.143 dyoung * and if_index is not sufficient to identify an ifnet
329 1.143 dyoung * because during the lifetime of the system, many ifnets may occupy a
330 1.143 dyoung * given if_index. Let us tell different ifnets at the same
331 1.143 dyoung * if_index apart by their if_index_gen, a unique number that each ifnet
332 1.143 dyoung * is assigned when it if_attach()s. Now, the kernel can use the
333 1.143 dyoung * pair (if_index, if_index_gen) as a weak reference to an ifnet.
334 1.143 dyoung */
335 1.143 dyoung uint64_t if_index_gen; /* generation number for the ifnet
336 1.143 dyoung * at if_index: if two ifnets' index
337 1.143 dyoung * and generation number are both the
338 1.143 dyoung * same, they are the same ifnet.
339 1.143 dyoung */
340 1.143 dyoung struct sysctllog *if_sysctl_log;
341 1.152 dyoung int (*if_initaddr)(struct ifnet *, struct ifaddr *, bool);
342 1.152 dyoung int (*if_mcastop)(struct ifnet *, const unsigned long,
343 1.152 dyoung const struct sockaddr *);
344 1.152 dyoung int (*if_setflags)(struct ifnet *, const short);
345 1.153 dyoung struct ifnet_lock *if_ioctl_lock;
346 1.178 ozaki #ifdef _KERNEL /* XXX kvm(3) */
347 1.178 ozaki callout_t if_slowtimo_ch;
348 1.178 ozaki #endif
349 1.149 rmind } ifnet_t;
350 1.153 dyoung
351 1.9 mycroft #define if_mtu if_data.ifi_mtu
352 1.9 mycroft #define if_type if_data.ifi_type
353 1.9 mycroft #define if_addrlen if_data.ifi_addrlen
354 1.9 mycroft #define if_hdrlen if_data.ifi_hdrlen
355 1.9 mycroft #define if_metric if_data.ifi_metric
356 1.46 thorpej #define if_link_state if_data.ifi_link_state
357 1.9 mycroft #define if_baudrate if_data.ifi_baudrate
358 1.9 mycroft #define if_ipackets if_data.ifi_ipackets
359 1.9 mycroft #define if_ierrors if_data.ifi_ierrors
360 1.9 mycroft #define if_opackets if_data.ifi_opackets
361 1.9 mycroft #define if_oerrors if_data.ifi_oerrors
362 1.9 mycroft #define if_collisions if_data.ifi_collisions
363 1.9 mycroft #define if_ibytes if_data.ifi_ibytes
364 1.9 mycroft #define if_obytes if_data.ifi_obytes
365 1.9 mycroft #define if_imcasts if_data.ifi_imcasts
366 1.9 mycroft #define if_omcasts if_data.ifi_omcasts
367 1.9 mycroft #define if_iqdrops if_data.ifi_iqdrops
368 1.9 mycroft #define if_noproto if_data.ifi_noproto
369 1.9 mycroft #define if_lastchange if_data.ifi_lastchange
370 1.1 cgd
371 1.70 thorpej #define IFF_UP 0x0001 /* interface is up */
372 1.70 thorpej #define IFF_BROADCAST 0x0002 /* broadcast address valid */
373 1.70 thorpej #define IFF_DEBUG 0x0004 /* turn on debugging */
374 1.70 thorpej #define IFF_LOOPBACK 0x0008 /* is a loopback net */
375 1.70 thorpej #define IFF_POINTOPOINT 0x0010 /* interface is point-to-point link */
376 1.70 thorpej #define IFF_NOTRAILERS 0x0020 /* avoid use of trailers */
377 1.70 thorpej #define IFF_RUNNING 0x0040 /* resources allocated */
378 1.70 thorpej #define IFF_NOARP 0x0080 /* no address resolution protocol */
379 1.70 thorpej #define IFF_PROMISC 0x0100 /* receive all packets */
380 1.70 thorpej #define IFF_ALLMULTI 0x0200 /* receive all multicast packets */
381 1.70 thorpej #define IFF_OACTIVE 0x0400 /* transmission in progress */
382 1.70 thorpej #define IFF_SIMPLEX 0x0800 /* can't hear own transmissions */
383 1.5 cgd #define IFF_LINK0 0x1000 /* per link layer defined bit */
384 1.6 cgd #define IFF_LINK1 0x2000 /* per link layer defined bit */
385 1.6 cgd #define IFF_LINK2 0x4000 /* per link layer defined bit */
386 1.9 mycroft #define IFF_MULTICAST 0x8000 /* supports multicast */
387 1.4 hpeyerl
388 1.105 thorpej #define IFFBITS \
389 1.105 thorpej "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6NOTRAILERS" \
390 1.105 thorpej "\7RUNNING\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX" \
391 1.105 thorpej "\15LINK0\16LINK1\17LINK2\20MULTICAST"
392 1.105 thorpej
393 1.1 cgd /* flags set internally only: */
394 1.9 mycroft #define IFF_CANTCHANGE \
395 1.9 mycroft (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
396 1.52 thorpej IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI|IFF_PROMISC)
397 1.1 cgd
398 1.1 cgd /*
399 1.46 thorpej * Some convenience macros used for setting ifi_baudrate.
400 1.94 keihan * XXX 1000 vs. 1024? --thorpej (at) NetBSD.org
401 1.46 thorpej */
402 1.46 thorpej #define IF_Kbps(x) ((x) * 1000) /* kilobits/sec. */
403 1.46 thorpej #define IF_Mbps(x) (IF_Kbps((x) * 1000)) /* megabits/sec. */
404 1.46 thorpej #define IF_Gbps(x) (IF_Mbps((x) * 1000)) /* gigabits/sec. */
405 1.46 thorpej
406 1.70 thorpej /* Capabilities that interfaces can advertise. */
407 1.161 pooka /* 0x01 .. 0x40 were previously used */
408 1.108 yamt #define IFCAP_TSOv4 0x00080 /* can do TCPv4 segmentation offload */
409 1.108 yamt #define IFCAP_CSUM_IPv4_Rx 0x00100 /* can do IPv4 header checksums (Rx) */
410 1.108 yamt #define IFCAP_CSUM_IPv4_Tx 0x00200 /* can do IPv4 header checksums (Tx) */
411 1.108 yamt #define IFCAP_CSUM_TCPv4_Rx 0x00400 /* can do IPv4/TCP checksums (Rx) */
412 1.108 yamt #define IFCAP_CSUM_TCPv4_Tx 0x00800 /* can do IPv4/TCP checksums (Tx) */
413 1.108 yamt #define IFCAP_CSUM_UDPv4_Rx 0x01000 /* can do IPv4/UDP checksums (Rx) */
414 1.108 yamt #define IFCAP_CSUM_UDPv4_Tx 0x02000 /* can do IPv4/UDP checksums (Tx) */
415 1.108 yamt #define IFCAP_CSUM_TCPv6_Rx 0x04000 /* can do IPv6/TCP checksums (Rx) */
416 1.108 yamt #define IFCAP_CSUM_TCPv6_Tx 0x08000 /* can do IPv6/TCP checksums (Tx) */
417 1.108 yamt #define IFCAP_CSUM_UDPv6_Rx 0x10000 /* can do IPv6/UDP checksums (Rx) */
418 1.108 yamt #define IFCAP_CSUM_UDPv6_Tx 0x20000 /* can do IPv6/UDP checksums (Tx) */
419 1.121 yamt #define IFCAP_TSOv6 0x40000 /* can do TCPv6 segmentation offload */
420 1.162 christos #define IFCAP_LRO 0x80000 /* can do Large Receive Offload */
421 1.162 christos #define IFCAP_MASK 0xfff80 /* currently valid capabilities */
422 1.108 yamt
423 1.108 yamt #define IFCAPBITS \
424 1.108 yamt "\020" \
425 1.108 yamt "\10TSO4" \
426 1.108 yamt "\11IP4CSUM_Rx" \
427 1.108 yamt "\12IP4CSUM_Tx" \
428 1.108 yamt "\13TCP4CSUM_Rx" \
429 1.108 yamt "\14TCP4CSUM_Tx" \
430 1.108 yamt "\15UDP4CSUM_Rx" \
431 1.108 yamt "\16UDP4CSUM_Tx" \
432 1.108 yamt "\17TCP6CSUM_Rx" \
433 1.108 yamt "\20TCP6CSUM_Tx" \
434 1.108 yamt "\21UDP6CSUM_Rx" \
435 1.121 yamt "\22UDP6CSUM_Tx" \
436 1.162 christos "\23TSO6" \
437 1.162 christos "\24LRO" \
438 1.105 thorpej
439 1.169 ozaki #define IFQ_LOCK(_ifq) if ((_ifq)->ifq_lock) mutex_enter((_ifq)->ifq_lock)
440 1.169 ozaki #define IFQ_UNLOCK(_ifq) if ((_ifq)->ifq_lock) mutex_exit((_ifq)->ifq_lock)
441 1.169 ozaki
442 1.46 thorpej /*
443 1.1 cgd * Output queues (ifp->if_snd) and internetwork datagram level (pup level 1)
444 1.1 cgd * input routines have queues of messages stored on ifqueue structures
445 1.1 cgd * (defined above). Entries are added to and deleted from these structures
446 1.79 pooka * by these macros, which should be called with ipl raised to splnet().
447 1.1 cgd */
448 1.1 cgd #define IF_QFULL(ifq) ((ifq)->ifq_len >= (ifq)->ifq_maxlen)
449 1.1 cgd #define IF_DROP(ifq) ((ifq)->ifq_drops++)
450 1.112 christos #define IF_ENQUEUE(ifq, m) do { \
451 1.1 cgd (m)->m_nextpkt = 0; \
452 1.1 cgd if ((ifq)->ifq_tail == 0) \
453 1.1 cgd (ifq)->ifq_head = m; \
454 1.1 cgd else \
455 1.1 cgd (ifq)->ifq_tail->m_nextpkt = m; \
456 1.1 cgd (ifq)->ifq_tail = m; \
457 1.1 cgd (ifq)->ifq_len++; \
458 1.112 christos } while (/*CONSTCOND*/0)
459 1.112 christos #define IF_PREPEND(ifq, m) do { \
460 1.1 cgd (m)->m_nextpkt = (ifq)->ifq_head; \
461 1.1 cgd if ((ifq)->ifq_tail == 0) \
462 1.1 cgd (ifq)->ifq_tail = (m); \
463 1.1 cgd (ifq)->ifq_head = (m); \
464 1.1 cgd (ifq)->ifq_len++; \
465 1.112 christos } while (/*CONSTCOND*/0)
466 1.112 christos #define IF_DEQUEUE(ifq, m) do { \
467 1.1 cgd (m) = (ifq)->ifq_head; \
468 1.1 cgd if (m) { \
469 1.1 cgd if (((ifq)->ifq_head = (m)->m_nextpkt) == 0) \
470 1.1 cgd (ifq)->ifq_tail = 0; \
471 1.1 cgd (m)->m_nextpkt = 0; \
472 1.1 cgd (ifq)->ifq_len--; \
473 1.1 cgd } \
474 1.112 christos } while (/*CONSTCOND*/0)
475 1.55 thorpej #define IF_POLL(ifq, m) ((m) = (ifq)->ifq_head)
476 1.55 thorpej #define IF_PURGE(ifq) \
477 1.55 thorpej do { \
478 1.55 thorpej struct mbuf *__m0; \
479 1.57 thorpej \
480 1.57 thorpej for (;;) { \
481 1.57 thorpej IF_DEQUEUE((ifq), __m0); \
482 1.57 thorpej if (__m0 == NULL) \
483 1.57 thorpej break; \
484 1.57 thorpej else \
485 1.57 thorpej m_freem(__m0); \
486 1.57 thorpej } \
487 1.83 perry } while (/*CONSTCOND*/ 0)
488 1.55 thorpej #define IF_IS_EMPTY(ifq) ((ifq)->ifq_len == 0)
489 1.1 cgd
490 1.91 ragge #ifndef IFQ_MAXLEN
491 1.102 jonathan #define IFQ_MAXLEN 256
492 1.91 ragge #endif
493 1.1 cgd #define IFNET_SLOWHZ 1 /* granularity is 1 second */
494 1.1 cgd
495 1.1 cgd /*
496 1.35 aidan * Structure defining statistics and other data kept regarding an address
497 1.35 aidan * on a network interface.
498 1.35 aidan */
499 1.35 aidan struct ifaddr_data {
500 1.35 aidan int64_t ifad_inbytes;
501 1.35 aidan int64_t ifad_outbytes;
502 1.35 aidan };
503 1.35 aidan
504 1.35 aidan /*
505 1.1 cgd * The ifaddr structure contains information about one address
506 1.1 cgd * of an interface. They are maintained by the different address families,
507 1.1 cgd * are allocated and attached when an address is set, and are linked
508 1.1 cgd * together so all addresses for an interface can be located.
509 1.1 cgd */
510 1.1 cgd struct ifaddr {
511 1.1 cgd struct sockaddr *ifa_addr; /* address of interface */
512 1.1 cgd struct sockaddr *ifa_dstaddr; /* other end of p-to-p link */
513 1.1 cgd #define ifa_broadaddr ifa_dstaddr /* broadcast address interface */
514 1.1 cgd struct sockaddr *ifa_netmask; /* used to determine subnet */
515 1.1 cgd struct ifnet *ifa_ifp; /* back-pointer to interface */
516 1.17 mycroft TAILQ_ENTRY(ifaddr) ifa_list; /* list of addresses for interface */
517 1.35 aidan struct ifaddr_data ifa_data; /* statistics on the address */
518 1.20 christos void (*ifa_rtrequest) /* check or clean routes (+ or -)'d */
519 1.140 dyoung (int, struct rtentry *, const struct rt_addrinfo *);
520 1.41 wrstuden u_int ifa_flags; /* mostly rt_flags for cloning */
521 1.41 wrstuden int ifa_refcnt; /* count of references */
522 1.9 mycroft int ifa_metric; /* cost of going out this interface */
523 1.120 dyoung struct ifaddr *(*ifa_getifa)(struct ifaddr *,
524 1.120 dyoung const struct sockaddr *);
525 1.120 dyoung uint32_t *ifa_seqno;
526 1.120 dyoung int16_t ifa_preference; /* preference level for this address */
527 1.1 cgd };
528 1.136 dyoung #define IFA_ROUTE RTF_UP /* (0x01) route installed */
529 1.37 itojun
530 1.37 itojun /*
531 1.150 matt * Message format for use in obtaining information about interfaces from
532 1.150 matt * sysctl and the routing socket. We need to force 64-bit alignment if we
533 1.150 matt * aren't using compatiblity definitons.
534 1.9 mycroft */
535 1.150 matt #if !defined(_KERNEL) || !defined(COMPAT_RTSOCK)
536 1.150 matt #define __align64 __aligned(sizeof(uint64_t))
537 1.150 matt #else
538 1.150 matt #define __align64
539 1.150 matt #endif
540 1.9 mycroft struct if_msghdr {
541 1.150 matt u_short ifm_msglen __align64;
542 1.150 matt /* to skip over non-understood messages */
543 1.71 wiz u_char ifm_version; /* future binary compatibility */
544 1.9 mycroft u_char ifm_type; /* message type */
545 1.9 mycroft int ifm_addrs; /* like rtm_addrs */
546 1.9 mycroft int ifm_flags; /* value of if_flags */
547 1.9 mycroft u_short ifm_index; /* index for associated ifp */
548 1.150 matt struct if_data ifm_data __align64;
549 1.150 matt /* statistics and other data about if */
550 1.9 mycroft };
551 1.42 bouyer
552 1.9 mycroft /*
553 1.9 mycroft * Message format for use in obtaining information about interface addresses
554 1.9 mycroft * from sysctl and the routing socket.
555 1.9 mycroft */
556 1.9 mycroft struct ifa_msghdr {
557 1.150 matt u_short ifam_msglen __align64;
558 1.150 matt /* to skip over non-understood messages */
559 1.71 wiz u_char ifam_version; /* future binary compatibility */
560 1.9 mycroft u_char ifam_type; /* message type */
561 1.9 mycroft int ifam_addrs; /* like rtm_addrs */
562 1.9 mycroft int ifam_flags; /* value of ifa_flags */
563 1.150 matt int ifam_metric; /* value of ifa_metric */
564 1.9 mycroft u_short ifam_index; /* index for associated ifp */
565 1.9 mycroft };
566 1.46 thorpej
567 1.46 thorpej /*
568 1.46 thorpej * Message format announcing the arrival or departure of a network interface.
569 1.46 thorpej */
570 1.46 thorpej struct if_announcemsghdr {
571 1.150 matt u_short ifan_msglen __align64;
572 1.150 matt /* to skip over non-understood messages */
573 1.46 thorpej u_char ifan_version; /* future binary compatibility */
574 1.46 thorpej u_char ifan_type; /* message type */
575 1.46 thorpej u_short ifan_index; /* index for associated ifp */
576 1.46 thorpej char ifan_name[IFNAMSIZ]; /* if name, e.g. "en0" */
577 1.46 thorpej u_short ifan_what; /* what type of announcement */
578 1.46 thorpej };
579 1.46 thorpej
580 1.46 thorpej #define IFAN_ARRIVAL 0 /* interface arrival */
581 1.46 thorpej #define IFAN_DEPARTURE 1 /* interface departure */
582 1.9 mycroft
583 1.150 matt #undef __align64
584 1.150 matt
585 1.1 cgd /*
586 1.1 cgd * Interface request structure used for socket
587 1.1 cgd * ioctl's. All interface ioctl's must have parameter
588 1.1 cgd * definitions which begin with ifr_name. The
589 1.1 cgd * remainder may be interface specific.
590 1.1 cgd */
591 1.1 cgd struct ifreq {
592 1.1 cgd char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
593 1.1 cgd union {
594 1.1 cgd struct sockaddr ifru_addr;
595 1.1 cgd struct sockaddr ifru_dstaddr;
596 1.1 cgd struct sockaddr ifru_broadaddr;
597 1.124 christos struct sockaddr_storage ifru_space;
598 1.1 cgd short ifru_flags;
599 1.1 cgd int ifru_metric;
600 1.24 cgd int ifru_mtu;
601 1.61 thorpej int ifru_dlt;
602 1.39 matt u_int ifru_value;
603 1.123 christos void * ifru_data;
604 1.111 dyoung struct {
605 1.111 dyoung uint32_t b_buflen;
606 1.111 dyoung void *b_buf;
607 1.111 dyoung } ifru_b;
608 1.1 cgd } ifr_ifru;
609 1.1 cgd #define ifr_addr ifr_ifru.ifru_addr /* address */
610 1.1 cgd #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */
611 1.1 cgd #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
612 1.127 gdt #define ifr_space ifr_ifru.ifru_space /* sockaddr_storage */
613 1.1 cgd #define ifr_flags ifr_ifru.ifru_flags /* flags */
614 1.1 cgd #define ifr_metric ifr_ifru.ifru_metric /* metric */
615 1.24 cgd #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
616 1.61 thorpej #define ifr_dlt ifr_ifru.ifru_dlt /* data link type (DLT_*) */
617 1.39 matt #define ifr_value ifr_ifru.ifru_value /* generic value */
618 1.27 thorpej #define ifr_media ifr_ifru.ifru_metric /* media options (overload) */
619 1.111 dyoung #define ifr_data ifr_ifru.ifru_data /* for use by interface
620 1.111 dyoung * XXX deprecated
621 1.111 dyoung */
622 1.111 dyoung #define ifr_buf ifr_ifru.ifru_b.b_buf /* new interface ioctls */
623 1.111 dyoung #define ifr_buflen ifr_ifru.ifru_b.b_buflen
624 1.159 christos #define ifr_index ifr_ifru.ifru_value /* interface index, BSD */
625 1.159 christos #define ifr_ifindex ifr_index /* interface index, linux */
626 1.70 thorpej };
627 1.70 thorpej
628 1.126 dyoung #ifdef _KERNEL
629 1.125 dyoung #define ifreq_setdstaddr ifreq_setaddr
630 1.125 dyoung #define ifreq_setbroadaddr ifreq_setaddr
631 1.125 dyoung #define ifreq_getdstaddr ifreq_getaddr
632 1.125 dyoung #define ifreq_getbroadaddr ifreq_getaddr
633 1.125 dyoung
634 1.125 dyoung static inline const struct sockaddr *
635 1.160 christos /*ARGSUSED*/
636 1.125 dyoung ifreq_getaddr(u_long cmd, const struct ifreq *ifr)
637 1.125 dyoung {
638 1.125 dyoung return &ifr->ifr_addr;
639 1.125 dyoung }
640 1.126 dyoung #endif /* _KERNEL */
641 1.125 dyoung
642 1.70 thorpej struct ifcapreq {
643 1.70 thorpej char ifcr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
644 1.70 thorpej uint64_t ifcr_capabilities; /* supported capabiliites */
645 1.70 thorpej uint64_t ifcr_capenable; /* capabilities enabled */
646 1.50 itojun };
647 1.1 cgd
648 1.1 cgd struct ifaliasreq {
649 1.1 cgd char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */
650 1.1 cgd struct sockaddr ifra_addr;
651 1.21 pk struct sockaddr ifra_dstaddr;
652 1.21 pk #define ifra_broadaddr ifra_dstaddr
653 1.1 cgd struct sockaddr ifra_mask;
654 1.76 matt };
655 1.76 matt
656 1.76 matt struct ifdatareq {
657 1.76 matt char ifdr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
658 1.76 matt struct if_data ifdr_data;
659 1.27 thorpej };
660 1.27 thorpej
661 1.27 thorpej struct ifmediareq {
662 1.27 thorpej char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */
663 1.27 thorpej int ifm_current; /* current media options */
664 1.27 thorpej int ifm_mask; /* don't care mask */
665 1.27 thorpej int ifm_status; /* media status */
666 1.27 thorpej int ifm_active; /* active options */
667 1.27 thorpej int ifm_count; /* # entries in ifm_ulist
668 1.27 thorpej array */
669 1.27 thorpej int *ifm_ulist; /* media words */
670 1.1 cgd };
671 1.31 kml
672 1.101 perry
673 1.31 kml struct ifdrv {
674 1.31 kml char ifd_name[IFNAMSIZ]; /* if name, e.g. "en0" */
675 1.31 kml unsigned long ifd_cmd;
676 1.31 kml size_t ifd_len;
677 1.31 kml void *ifd_data;
678 1.101 perry };
679 1.148 pooka #define IFLINKSTR_QUERYLEN 0x01
680 1.148 pooka #define IFLINKSTR_UNSET 0x02
681 1.1 cgd
682 1.1 cgd /*
683 1.1 cgd * Structure used in SIOCGIFCONF request.
684 1.1 cgd * Used to retrieve interface configuration
685 1.1 cgd * for machine (useful for programs which
686 1.1 cgd * must know all networks accessible).
687 1.1 cgd */
688 1.1 cgd struct ifconf {
689 1.1 cgd int ifc_len; /* size of associated buffer */
690 1.1 cgd union {
691 1.123 christos void * ifcu_buf;
692 1.1 cgd struct ifreq *ifcu_req;
693 1.1 cgd } ifc_ifcu;
694 1.1 cgd #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
695 1.1 cgd #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */
696 1.1 cgd };
697 1.1 cgd
698 1.37 itojun /*
699 1.37 itojun * Structure for SIOC[AGD]LIFADDR
700 1.37 itojun */
701 1.37 itojun struct if_laddrreq {
702 1.37 itojun char iflr_name[IFNAMSIZ];
703 1.37 itojun unsigned int flags;
704 1.37 itojun #define IFLR_PREFIX 0x8000 /* in: prefix given out: kernel fills id */
705 1.136 dyoung #define IFLR_ACTIVE 0x4000 /* in/out: link-layer address activation */
706 1.141 dyoung #define IFLR_FACTORY 0x2000 /* in/out: factory link-layer address */
707 1.37 itojun unsigned int prefixlen; /* in/out */
708 1.37 itojun struct sockaddr_storage addr; /* in/out */
709 1.37 itojun struct sockaddr_storage dstaddr; /* out */
710 1.37 itojun };
711 1.37 itojun
712 1.120 dyoung /*
713 1.120 dyoung * Structure for SIOC[SG]IFADDRPREF
714 1.120 dyoung */
715 1.120 dyoung struct if_addrprefreq {
716 1.120 dyoung char ifap_name[IFNAMSIZ];
717 1.120 dyoung int16_t ifap_preference; /* in/out */
718 1.120 dyoung struct sockaddr_storage ifap_addr; /* in/out */
719 1.120 dyoung };
720 1.120 dyoung
721 1.9 mycroft #include <net/if_arp.h>
722 1.9 mycroft
723 1.87 bjh21 #endif /* _NETBSD_SOURCE */
724 1.38 kleink
725 1.15 jtc #ifdef _KERNEL
726 1.55 thorpej #ifdef ALTQ
727 1.55 thorpej #define ALTQ_DECL(x) x
728 1.107 christos #define ALTQ_COMMA ,
729 1.55 thorpej
730 1.55 thorpej #define IFQ_ENQUEUE(ifq, m, pattr, err) \
731 1.55 thorpej do { \
732 1.169 ozaki IFQ_LOCK((ifq)); \
733 1.55 thorpej if (ALTQ_IS_ENABLED((ifq))) \
734 1.55 thorpej ALTQ_ENQUEUE((ifq), (m), (pattr), (err)); \
735 1.55 thorpej else { \
736 1.55 thorpej if (IF_QFULL((ifq))) { \
737 1.55 thorpej m_freem((m)); \
738 1.55 thorpej (err) = ENOBUFS; \
739 1.55 thorpej } else { \
740 1.55 thorpej IF_ENQUEUE((ifq), (m)); \
741 1.55 thorpej (err) = 0; \
742 1.55 thorpej } \
743 1.55 thorpej } \
744 1.55 thorpej if ((err)) \
745 1.55 thorpej (ifq)->ifq_drops++; \
746 1.169 ozaki IFQ_UNLOCK((ifq)); \
747 1.83 perry } while (/*CONSTCOND*/ 0)
748 1.55 thorpej
749 1.55 thorpej #define IFQ_DEQUEUE(ifq, m) \
750 1.55 thorpej do { \
751 1.169 ozaki IFQ_LOCK((ifq)); \
752 1.55 thorpej if (TBR_IS_ENABLED((ifq))) \
753 1.55 thorpej (m) = tbr_dequeue((ifq), ALTDQ_REMOVE); \
754 1.55 thorpej else if (ALTQ_IS_ENABLED((ifq))) \
755 1.55 thorpej ALTQ_DEQUEUE((ifq), (m)); \
756 1.56 thorpej else \
757 1.62 thorpej IF_DEQUEUE((ifq), (m)); \
758 1.169 ozaki IFQ_UNLOCK((ifq)); \
759 1.83 perry } while (/*CONSTCOND*/ 0)
760 1.56 thorpej
761 1.56 thorpej #define IFQ_POLL(ifq, m) \
762 1.56 thorpej do { \
763 1.169 ozaki IFQ_LOCK((ifq)); \
764 1.56 thorpej if (TBR_IS_ENABLED((ifq))) \
765 1.56 thorpej (m) = tbr_dequeue((ifq), ALTDQ_POLL); \
766 1.56 thorpej else if (ALTQ_IS_ENABLED((ifq))) \
767 1.56 thorpej ALTQ_POLL((ifq), (m)); \
768 1.55 thorpej else \
769 1.55 thorpej IF_POLL((ifq), (m)); \
770 1.169 ozaki IFQ_UNLOCK((ifq)); \
771 1.83 perry } while (/*CONSTCOND*/ 0)
772 1.55 thorpej
773 1.55 thorpej #define IFQ_PURGE(ifq) \
774 1.55 thorpej do { \
775 1.169 ozaki IFQ_LOCK((ifq)); \
776 1.55 thorpej if (ALTQ_IS_ENABLED((ifq))) \
777 1.55 thorpej ALTQ_PURGE((ifq)); \
778 1.55 thorpej else \
779 1.55 thorpej IF_PURGE((ifq)); \
780 1.169 ozaki IFQ_UNLOCK((ifq)); \
781 1.83 perry } while (/*CONSTCOND*/ 0)
782 1.55 thorpej
783 1.55 thorpej #define IFQ_SET_READY(ifq) \
784 1.55 thorpej do { \
785 1.55 thorpej (ifq)->altq_flags |= ALTQF_READY; \
786 1.83 perry } while (/*CONSTCOND*/ 0)
787 1.55 thorpej
788 1.109 peter #define IFQ_CLASSIFY(ifq, m, af, pattr) \
789 1.55 thorpej do { \
790 1.169 ozaki IFQ_LOCK((ifq)); \
791 1.55 thorpej if (ALTQ_IS_ENABLED((ifq))) { \
792 1.55 thorpej if (ALTQ_NEEDS_CLASSIFY((ifq))) \
793 1.109 peter (pattr)->pattr_class = (*(ifq)->altq_classify) \
794 1.55 thorpej ((ifq)->altq_clfier, (m), (af)); \
795 1.109 peter (pattr)->pattr_af = (af); \
796 1.123 christos (pattr)->pattr_hdr = mtod((m), void *); \
797 1.55 thorpej } \
798 1.169 ozaki IFQ_UNLOCK((ifq)); \
799 1.83 perry } while (/*CONSTCOND*/ 0)
800 1.55 thorpej #else /* ! ALTQ */
801 1.55 thorpej #define ALTQ_DECL(x) /* nothing */
802 1.107 christos #define ALTQ_COMMA
803 1.55 thorpej
804 1.55 thorpej #define IFQ_ENQUEUE(ifq, m, pattr, err) \
805 1.55 thorpej do { \
806 1.169 ozaki IFQ_LOCK((ifq)); \
807 1.55 thorpej if (IF_QFULL((ifq))) { \
808 1.55 thorpej m_freem((m)); \
809 1.55 thorpej (err) = ENOBUFS; \
810 1.55 thorpej } else { \
811 1.55 thorpej IF_ENQUEUE((ifq), (m)); \
812 1.55 thorpej (err) = 0; \
813 1.55 thorpej } \
814 1.55 thorpej if ((err)) \
815 1.55 thorpej (ifq)->ifq_drops++; \
816 1.169 ozaki IFQ_UNLOCK((ifq)); \
817 1.83 perry } while (/*CONSTCOND*/ 0)
818 1.55 thorpej
819 1.169 ozaki #define IFQ_DEQUEUE(ifq, m) \
820 1.169 ozaki do { \
821 1.169 ozaki IFQ_LOCK((ifq)); \
822 1.169 ozaki IF_DEQUEUE((ifq), (m)); \
823 1.169 ozaki IFQ_UNLOCK((ifq)); \
824 1.169 ozaki } while (/*CONSTCOND*/ 0)
825 1.55 thorpej
826 1.169 ozaki #define IFQ_POLL(ifq, m) \
827 1.169 ozaki do { \
828 1.169 ozaki IFQ_LOCK((ifq)); \
829 1.169 ozaki IF_POLL((ifq), (m)); \
830 1.169 ozaki IFQ_UNLOCK((ifq)); \
831 1.169 ozaki } while (/*CONSTCOND*/ 0)
832 1.55 thorpej
833 1.169 ozaki #define IFQ_PURGE(ifq) \
834 1.169 ozaki do { \
835 1.169 ozaki IFQ_LOCK((ifq)); \
836 1.169 ozaki IF_PURGE((ifq)); \
837 1.169 ozaki IFQ_UNLOCK((ifq)); \
838 1.169 ozaki } while (/*CONSTCOND*/ 0)
839 1.55 thorpej
840 1.55 thorpej #define IFQ_SET_READY(ifq) /* nothing */
841 1.55 thorpej
842 1.109 peter #define IFQ_CLASSIFY(ifq, m, af, pattr) /* nothing */
843 1.55 thorpej
844 1.55 thorpej #endif /* ALTQ */
845 1.55 thorpej
846 1.55 thorpej #define IFQ_IS_EMPTY(ifq) IF_IS_EMPTY((ifq))
847 1.55 thorpej #define IFQ_INC_LEN(ifq) ((ifq)->ifq_len++)
848 1.55 thorpej #define IFQ_DEC_LEN(ifq) (--(ifq)->ifq_len)
849 1.55 thorpej #define IFQ_INC_DROPS(ifq) ((ifq)->ifq_drops++)
850 1.55 thorpej #define IFQ_SET_MAXLEN(ifq, len) ((ifq)->ifq_maxlen = (len))
851 1.84 thorpej
852 1.84 thorpej #include <sys/mallocvar.h>
853 1.84 thorpej MALLOC_DECLARE(M_IFADDR);
854 1.84 thorpej MALLOC_DECLARE(M_IFMADDR);
855 1.100 matt
856 1.125 dyoung int ifreq_setaddr(u_long, struct ifreq *, const struct sockaddr *);
857 1.125 dyoung
858 1.138 christos struct ifnet *if_alloc(u_char);
859 1.151 dyoung void if_free(struct ifnet *);
860 1.138 christos void if_initname(struct ifnet *, const char *, int);
861 1.133 dyoung struct ifaddr *if_dl_create(const struct ifnet *, const struct sockaddr_dl **);
862 1.137 dyoung void if_activate_sadl(struct ifnet *, struct ifaddr *,
863 1.137 dyoung const struct sockaddr_dl *);
864 1.141 dyoung void if_set_sadl(struct ifnet *, const void *, u_char, bool);
865 1.114 thorpej void if_alloc_sadl(struct ifnet *);
866 1.114 thorpej void if_free_sadl(struct ifnet *);
867 1.114 thorpej void if_attach(struct ifnet *);
868 1.114 thorpej void if_attachdomain(void);
869 1.114 thorpej void if_attachdomain1(struct ifnet *);
870 1.114 thorpej void if_deactivate(struct ifnet *);
871 1.129 dyoung void if_purgeaddrs(struct ifnet *, int, void (*)(struct ifaddr *));
872 1.114 thorpej void if_detach(struct ifnet *);
873 1.114 thorpej void if_down(struct ifnet *);
874 1.110 dyoung void if_link_state_change(struct ifnet *, int);
875 1.114 thorpej void if_up(struct ifnet *);
876 1.123 christos int ifconf(u_long, void *);
877 1.114 thorpej void ifinit(void);
878 1.139 yamt void ifinit1(void);
879 1.168 rtr int ifaddrpref_ioctl(struct socket *, u_long, void *, struct ifnet *);
880 1.163 pooka extern int (*ifioctl)(struct socket *, u_long, void *, struct lwp *);
881 1.134 dyoung int ifioctl_common(struct ifnet *, u_long, void *);
882 1.114 thorpej int ifpromisc(struct ifnet *, int);
883 1.114 thorpej struct ifnet *ifunit(const char *);
884 1.152 dyoung int if_addr_init(ifnet_t *, struct ifaddr *, bool);
885 1.152 dyoung int if_mcast_op(ifnet_t *, const unsigned long, const struct sockaddr *);
886 1.152 dyoung int if_flags_set(struct ifnet *, const short);
887 1.114 thorpej
888 1.130 dyoung void ifa_insert(struct ifnet *, struct ifaddr *);
889 1.130 dyoung void ifa_remove(struct ifnet *, struct ifaddr *);
890 1.130 dyoung
891 1.175 rmind void ifaref(struct ifaddr *);
892 1.175 rmind void ifafree(struct ifaddr *);
893 1.175 rmind
894 1.114 thorpej struct ifaddr *ifa_ifwithaddr(const struct sockaddr *);
895 1.114 thorpej struct ifaddr *ifa_ifwithaf(int);
896 1.114 thorpej struct ifaddr *ifa_ifwithdstaddr(const struct sockaddr *);
897 1.114 thorpej struct ifaddr *ifa_ifwithnet(const struct sockaddr *);
898 1.114 thorpej struct ifaddr *ifa_ifwithladdr(const struct sockaddr *);
899 1.114 thorpej struct ifaddr *ifa_ifwithroute(int, const struct sockaddr *,
900 1.114 thorpej const struct sockaddr *);
901 1.114 thorpej struct ifaddr *ifaof_ifpforaddr(const struct sockaddr *, struct ifnet *);
902 1.114 thorpej void ifafree(struct ifaddr *);
903 1.140 dyoung void link_rtrequest(int, struct rtentry *, const struct rt_addrinfo *);
904 1.51 thorpej
905 1.114 thorpej void if_clone_attach(struct if_clone *);
906 1.114 thorpej void if_clone_detach(struct if_clone *);
907 1.51 thorpej
908 1.114 thorpej int if_clone_create(const char *);
909 1.114 thorpej int if_clone_destroy(const char *);
910 1.9 mycroft
911 1.107 christos int ifq_enqueue(struct ifnet *, struct mbuf * ALTQ_COMMA
912 1.107 christos ALTQ_DECL(struct altq_pktattr *));
913 1.107 christos int ifq_enqueue2(struct ifnet *, struct ifqueue *, struct mbuf * ALTQ_COMMA
914 1.107 christos ALTQ_DECL(struct altq_pktattr *));
915 1.107 christos
916 1.123 christos int loioctl(struct ifnet *, u_long, void *);
917 1.114 thorpej void loopattach(int);
918 1.114 thorpej int looutput(struct ifnet *,
919 1.122 dyoung struct mbuf *, const struct sockaddr *, struct rtentry *);
920 1.140 dyoung void lortrequest(int, struct rtentry *, const struct rt_addrinfo *);
921 1.44 thorpej
922 1.44 thorpej /*
923 1.44 thorpej * These are exported because they're an easy way to tell if
924 1.44 thorpej * an interface is going away without having to burn a flag.
925 1.44 thorpej */
926 1.114 thorpej int if_nulloutput(struct ifnet *, struct mbuf *,
927 1.122 dyoung const struct sockaddr *, struct rtentry *);
928 1.114 thorpej void if_nullinput(struct ifnet *, struct mbuf *);
929 1.114 thorpej void if_nullstart(struct ifnet *);
930 1.123 christos int if_nullioctl(struct ifnet *, u_long, void *);
931 1.114 thorpej int if_nullinit(struct ifnet *);
932 1.114 thorpej void if_nullstop(struct ifnet *, int);
933 1.177 ozaki void if_nullslowtimo(struct ifnet *);
934 1.177 ozaki #define if_nullwatchdog if_nullslowtimo
935 1.114 thorpej void if_nulldrain(struct ifnet *);
936 1.37 itojun #else
937 1.37 itojun struct if_nameindex {
938 1.37 itojun unsigned int if_index; /* 1, 2, ... */
939 1.37 itojun char *if_name; /* null terminated name: "le0", ... */
940 1.37 itojun };
941 1.37 itojun
942 1.38 kleink #include <sys/cdefs.h>
943 1.37 itojun __BEGIN_DECLS
944 1.114 thorpej unsigned int if_nametoindex(const char *);
945 1.114 thorpej char * if_indextoname(unsigned int, char *);
946 1.114 thorpej struct if_nameindex * if_nameindex(void);
947 1.114 thorpej void if_freenameindex(struct if_nameindex *);
948 1.37 itojun __END_DECLS
949 1.93 jonathan #endif /* _KERNEL */ /* XXX really ALTQ? */
950 1.93 jonathan
951 1.93 jonathan #ifdef _KERNEL
952 1.149 rmind
953 1.165 rmind #define IFNET_FIRST() TAILQ_FIRST(&ifnet_list)
954 1.173 ozaki #define IFNET_EMPTY() TAILQ_EMPTY(&ifnet_list)
955 1.164 rmind #define IFNET_NEXT(__ifp) TAILQ_NEXT((__ifp), if_list)
956 1.165 rmind #define IFNET_FOREACH(__ifp) TAILQ_FOREACH(__ifp, &ifnet_list, if_list)
957 1.164 rmind #define IFADDR_FIRST(__ifp) TAILQ_FIRST(&(__ifp)->if_addrlist)
958 1.164 rmind #define IFADDR_NEXT(__ifa) TAILQ_NEXT((__ifa), ifa_list)
959 1.164 rmind #define IFADDR_FOREACH(__ifa, __ifp) TAILQ_FOREACH(__ifa, \
960 1.164 rmind &(__ifp)->if_addrlist, ifa_list)
961 1.174 ozaki #define IFADDR_FOREACH_SAFE(__ifa, __ifp, __nifa) \
962 1.174 ozaki TAILQ_FOREACH_SAFE(__ifa, \
963 1.174 ozaki &(__ifp)->if_addrlist, ifa_list, __nifa)
964 1.164 rmind #define IFADDR_EMPTY(__ifp) TAILQ_EMPTY(&(__ifp)->if_addrlist)
965 1.164 rmind
966 1.165 rmind extern struct ifnet_head ifnet_list;
967 1.165 rmind extern struct ifnet *lo0ifp;
968 1.165 rmind
969 1.149 rmind ifnet_t * if_byindex(u_int);
970 1.149 rmind
971 1.93 jonathan /*
972 1.93 jonathan * ifq sysctl support
973 1.93 jonathan */
974 1.114 thorpej int sysctl_ifq(int *name, u_int namelen, void *oldp,
975 1.93 jonathan size_t *oldlenp, void *newp, size_t newlen,
976 1.114 thorpej struct ifqueue *ifq);
977 1.93 jonathan /* symbolic names for terminal (per-protocol) CTL_IFQ_ nodes */
978 1.93 jonathan #define IFQCTL_LEN 1
979 1.93 jonathan #define IFQCTL_MAXLEN 2
980 1.93 jonathan #define IFQCTL_PEAK 3
981 1.93 jonathan #define IFQCTL_DROPS 4
982 1.93 jonathan #define IFQCTL_MAXID 5
983 1.93 jonathan
984 1.15 jtc #endif /* _KERNEL */
985 1.93 jonathan
986 1.93 jonathan #ifdef _NETBSD_SOURCE
987 1.93 jonathan /*
988 1.101 perry * sysctl for ifq (per-protocol packet input queue variant of ifqueue)
989 1.93 jonathan */
990 1.93 jonathan #define CTL_IFQ_NAMES { \
991 1.93 jonathan { 0, 0 }, \
992 1.93 jonathan { "len", CTLTYPE_INT }, \
993 1.93 jonathan { "maxlen", CTLTYPE_INT }, \
994 1.93 jonathan { "peak", CTLTYPE_INT }, \
995 1.93 jonathan { "drops", CTLTYPE_INT }, \
996 1.93 jonathan }
997 1.93 jonathan #endif /* _NETBSD_SOURCE */
998 1.28 chuck #endif /* !_NET_IF_H_ */
999