1 //==========================================================================
5 //==========================================================================
6 //####BSDCOPYRIGHTBEGIN####
8 // -------------------------------------------
10 // Portions of this software may have been derived from OpenBSD,
11 // FreeBSD or other sources, and are covered by the appropriate
12 // copyright disclaimers included herein.
14 // Portions created by Red Hat are
15 // Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
17 // -------------------------------------------
19 //####BSDCOPYRIGHTEND####
20 //==========================================================================
23 * Copyright (c) 1982, 1986, 1989, 1993
24 * The Regents of the University of California. All rights reserved.
26 * Redistribution and use in source and binary forms, with or without
27 * modification, are permitted provided that the following conditions
29 * 1. Redistributions of source code must retain the above copyright
30 * notice, this list of conditions and the following disclaimer.
31 * 2. Redistributions in binary form must reproduce the above copyright
32 * notice, this list of conditions and the following disclaimer in the
33 * documentation and/or other materials provided with the distribution.
34 * 3. All advertising materials mentioning features or use of this software
35 * must display the following acknowledgement:
36 * This product includes software developed by the University of
37 * California, Berkeley and its contributors.
38 * 4. Neither the name of the University nor the names of its contributors
39 * may be used to endorse or promote products derived from this software
40 * without specific prior written permission.
42 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
43 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
44 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
45 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
46 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
50 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
51 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
54 * @(#)if.h 8.1 (Berkeley) 6/10/93
55 * $FreeBSD: src/sys/net/if.h,v 1.58.2.2 2001/07/24 19:10:18 brooks Exp $
61 #include <sys/queue.h>
64 * <net/if.h> does not depend on <sys/time.h> on most other systems. This
65 * helps userland compatability. (struct timeval ifi_lastchange)
74 * Length of interface external name, including terminating '\0'.
75 * Note: this is the same size as a generic device's external name.
78 #define IF_NAMESIZE IFNAMSIZ
81 * Structure describing a `cloning' interface.
84 LIST_ENTRY(if_clone) ifc_list; /* on list of cloners */
85 const char *ifc_name; /* name of device, e.g. `gif' */
86 size_t ifc_namelen; /* length of name */
88 int (*ifc_create)(struct if_clone *, int *);
89 void (*ifc_destroy)(struct ifnet *);
92 #define IF_CLONE_INITIALIZER(name, create, destroy) \
93 { { 0 }, name, sizeof(name) - 1, create, destroy }
96 * Structure used to query names of interface cloners.
100 int ifcr_total; /* total cloners (out) */
101 int ifcr_count; /* room for this many in user buffer */
102 char *ifcr_buffer; /* buffer for cloner names */
106 * Structure describing information about an interface
107 * which may be of interest to management entities.
110 /* generic interface information */
111 u_char ifi_type; /* ethernet, tokenring, etc */
112 u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */
113 u_char ifi_addrlen; /* media address length */
114 u_char ifi_hdrlen; /* media header length */
115 u_char ifi_recvquota; /* polling quota for receive intrs */
116 u_char ifi_xmitquota; /* polling quota for xmit intrs */
117 u_long ifi_mtu; /* maximum transmission unit */
118 u_long ifi_metric; /* routing metric (external only) */
119 u_long ifi_baudrate; /* linespeed */
120 /* volatile statistics */
121 u_long ifi_ipackets; /* packets received on interface */
122 u_long ifi_ierrors; /* input errors on interface */
123 u_long ifi_opackets; /* packets sent on interface */
124 u_long ifi_oerrors; /* output errors on interface */
125 u_long ifi_collisions; /* collisions on csma interfaces */
126 u_long ifi_ibytes; /* total number of octets received */
127 u_long ifi_obytes; /* total number of octets sent */
128 u_long ifi_imcasts; /* packets received via multicast */
129 u_long ifi_omcasts; /* packets sent via multicast */
130 u_long ifi_iqdrops; /* dropped on input, this interface */
131 u_long ifi_noproto; /* destined for unsupported protocol */
132 u_long ifi_hwassist; /* HW offload capabilities */
133 u_long ifi_unused; /* XXX was ifi_xmittiming */
134 struct timeval ifi_lastchange; /* time of last administrative change */
137 #define IFF_UP 0x1 /* interface is up */
138 #define IFF_BROADCAST 0x2 /* broadcast address valid */
139 #define IFF_DEBUG 0x4 /* turn on debugging */
140 #define IFF_LOOPBACK 0x8 /* is a loopback net */
141 #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
142 #define IFF_SMART 0x20 /* interface manages own routes */
143 #define IFF_RUNNING 0x40 /* resources allocated */
144 #define IFF_NOARP 0x80 /* no address resolution protocol */
145 #define IFF_PROMISC 0x100 /* receive all packets */
146 #define IFF_ALLMULTI 0x200 /* receive all multicast packets */
147 #define IFF_OACTIVE 0x400 /* transmission in progress */
148 #define IFF_SIMPLEX 0x800 /* can't hear own transmissions */
149 #define IFF_LINK0 0x1000 /* per link layer defined bit */
150 #define IFF_LINK1 0x2000 /* per link layer defined bit */
151 #define IFF_LINK2 0x4000 /* per link layer defined bit */
152 #define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */
153 #define IFF_MULTICAST 0x8000 /* supports multicast */
155 /* flags set internally only: */
156 #define IFF_CANTCHANGE \
157 (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
158 IFF_LOOPBACK|IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI|IFF_SMART)
160 #define IFQ_MAXLEN 50
161 #define IFNET_SLOWHZ 1 /* granularity is 1 second */
164 * Message format for use in obtaining information about interfaces
165 * from getkerninfo and the routing socket
168 u_short ifm_msglen; /* to skip over non-understood messages */
169 u_char ifm_version; /* future binary compatability */
170 u_char ifm_type; /* message type */
171 int ifm_addrs; /* like rtm_addrs */
172 int ifm_flags; /* value of if_flags */
173 u_short ifm_index; /* index for associated ifp */
174 struct if_data ifm_data;/* statistics and other data about if */
178 * Message format for use in obtaining information about interface addresses
179 * from getkerninfo and the routing socket
182 u_short ifam_msglen; /* to skip over non-understood messages */
183 u_char ifam_version; /* future binary compatability */
184 u_char ifam_type; /* message type */
185 int ifam_addrs; /* like rtm_addrs */
186 int ifam_flags; /* value of ifa_flags */
187 u_short ifam_index; /* index for associated ifp */
188 int ifam_metric; /* value of ifa_metric */
192 * Message format for use in obtaining information about multicast addresses
193 * from the routing socket
196 u_short ifmam_msglen; /* to skip over non-understood messages */
197 u_char ifmam_version; /* future binary compatability */
198 u_char ifmam_type; /* message type */
199 int ifmam_addrs; /* like rtm_addrs */
200 int ifmam_flags; /* value of ifa_flags */
201 u_short ifmam_index; /* index for associated ifp */
205 * Interface request structure used for socket
206 * ioctl's. All interface ioctl's must have parameter
207 * definitions which begin with ifr_name. The
208 * remainder may be interface specific.
211 #define IFHWADDRLEN 6
212 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
214 struct sockaddr ifru_addr;
215 struct sockaddr ifru_dstaddr;
216 struct sockaddr ifru_broadaddr;
217 struct sockaddr ifru_hwaddr;
225 #define ifr_addr ifr_ifru.ifru_addr /* address */
226 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
227 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */
228 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
229 #define ifr_flags ifr_ifru.ifru_flags[0] /* flags */
230 #define ifr_prevflags ifr_ifru.ifru_flags[1] /* flags */
231 #define ifr_metric ifr_ifru.ifru_metric /* metric */
232 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
233 #define ifr_phys ifr_ifru.ifru_phys /* physical wire */
234 #define ifr_media ifr_ifru.ifru_media /* physical media */
235 #define ifr_data ifr_ifru.ifru_data /* for use by interface */
238 #define _SIZEOF_ADDR_IFREQ(ifr) \
239 ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \
240 (sizeof(struct ifreq) - sizeof(struct sockaddr) + \
241 (ifr).ifr_addr.sa_len) : sizeof(struct ifreq))
244 char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */
245 struct sockaddr ifra_addr;
246 struct sockaddr ifra_broadaddr;
247 struct sockaddr ifra_mask;
251 char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */
252 int ifm_current; /* current media options */
253 int ifm_mask; /* don't care mask */
254 int ifm_status; /* media status */
255 int ifm_active; /* active options */
256 int ifm_count; /* # entries in ifm_ulist array */
257 int *ifm_ulist; /* media words */
261 * Structure used to retrieve aux status data from interfaces.
262 * Kernel suppliers to this interface should respect the formatting
263 * needed by ifconfig(8): each line starts with a TAB and ends with
264 * a newline. The canonical example to copy and paste is in if_tun.c.
267 #define IFSTATMAX 800 /* 10 lines of text */
269 char ifs_name[IFNAMSIZ]; /* if name, e.g. "en0" */
270 char ascii[IFSTATMAX + 1];
274 * Structure used in SIOCGIFCONF request.
275 * Used to retrieve interface configuration
276 * for machine (useful for programs which
277 * must know all networks accessible).
280 int ifc_len; /* size of associated buffer */
283 struct ifreq *ifcu_req;
285 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
286 #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */
291 * Structure for SIOC[AGD]LIFADDR
294 char iflr_name[IFNAMSIZ];
296 #define IFLR_PREFIX 0x8000 /* in: prefix given out: kernel fills id */
297 u_int prefixlen; /* in/out */
298 struct sockaddr_storage addr; /* in/out */
299 struct sockaddr_storage dstaddr; /* out */
303 #ifdef MALLOC_DECLARE
304 MALLOC_DECLARE(M_IFADDR);
305 MALLOC_DECLARE(M_IFMADDR);
310 struct if_nameindex {
311 u_int if_index; /* 1, 2, ... */
312 char *if_name; /* null terminated name: "le0", ... */
316 u_int if_nametoindex __P((const char *));
317 char *if_indextoname __P((u_int, char *));
318 struct if_nameindex *if_nameindex __P((void));
319 void if_freenameindex __P((struct if_nameindex *));
324 /* XXX - this should go away soon. */
325 #include <net/if_var.h>
328 #endif /* !_NET_IF_H_ */