2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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9 * notice, this list of conditions and the following disclaimer.
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13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
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18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)if.h 8.1 (Berkeley) 6/10/93
41 * <net/if.h> does not depend on <sys/time.h> on most other systems. This
42 * helps userland compatability. (struct timeval ifi_lastchange)
49 * Structure describing information about an interface
50 * which may be of interest to management entities.
53 /* generic interface information */
54 u_char ifi_type; /* ethernet, tokenring, etc */
55 u_char ifi_physical; /* e.g., AUI, Thinnet, 10base-T, etc */
56 u_char ifi_addrlen; /* media address length */
57 u_char ifi_hdrlen; /* media header length */
58 u_char ifi_recvquota; /* polling quota for receive intrs */
59 u_char ifi_xmitquota; /* polling quota for xmit intrs */
60 u_long ifi_mtu; /* maximum transmission unit */
61 u_long ifi_metric; /* routing metric (external only) */
62 u_long ifi_baudrate; /* linespeed */
63 /* volatile statistics */
64 u_long ifi_ipackets; /* packets received on interface */
65 u_long ifi_ierrors; /* input errors on interface */
66 u_long ifi_opackets; /* packets sent on interface */
67 u_long ifi_oerrors; /* output errors on interface */
68 u_long ifi_collisions; /* collisions on csma interfaces */
69 u_long ifi_ibytes; /* total number of octets received */
70 u_long ifi_obytes; /* total number of octets sent */
71 u_long ifi_imcasts; /* packets received via multicast */
72 u_long ifi_omcasts; /* packets sent via multicast */
73 u_long ifi_iqdrops; /* dropped on input, this interface */
74 u_long ifi_noproto; /* destined for unsupported protocol */
75 u_long ifi_hwassist; /* HW offload capabilities */
76 u_long ifi_unused; /* XXX was ifi_xmittiming */
77 struct timeval ifi_lastchange; /* time of last administrative change */
80 #define IFF_UP 0x1 /* interface is up */
81 #define IFF_BROADCAST 0x2 /* broadcast address valid */
82 #define IFF_DEBUG 0x4 /* turn on debugging */
83 #define IFF_LOOPBACK 0x8 /* is a loopback net */
84 #define IFF_POINTOPOINT 0x10 /* interface is point-to-point link */
85 #define IFF_SMART 0x20 /* interface manages own routes */
86 #define IFF_RUNNING 0x40 /* resources allocated */
87 #define IFF_NOARP 0x80 /* no address resolution protocol */
88 #define IFF_PROMISC 0x100 /* receive all packets */
89 #define IFF_ALLMULTI 0x200 /* receive all multicast packets */
90 #define IFF_OACTIVE 0x400 /* transmission in progress */
91 #define IFF_SIMPLEX 0x800 /* can't hear own transmissions */
92 #define IFF_LINK0 0x1000 /* per link layer defined bit */
93 #define IFF_LINK1 0x2000 /* per link layer defined bit */
94 #define IFF_LINK2 0x4000 /* per link layer defined bit */
95 #define IFF_ALTPHYS IFF_LINK2 /* use alternate physical connection */
96 #define IFF_MULTICAST 0x8000 /* supports multicast */
98 /* flags set internally only: */
99 #define IFF_CANTCHANGE \
100 (IFF_BROADCAST|IFF_POINTOPOINT|IFF_RUNNING|IFF_OACTIVE|\
101 IFF_SIMPLEX|IFF_MULTICAST|IFF_ALLMULTI|IFF_SMART)
103 #define IFQ_MAXLEN 50
104 #define IFNET_SLOWHZ 1 /* granularity is 1 second */
107 * Message format for use in obtaining information about interfaces
108 * from getkerninfo and the routing socket
111 u_short ifm_msglen; /* to skip over non-understood messages */
112 u_char ifm_version; /* future binary compatability */
113 u_char ifm_type; /* message type */
114 int ifm_addrs; /* like rtm_addrs */
115 int ifm_flags; /* value of if_flags */
116 u_short ifm_index; /* index for associated ifp */
117 struct if_data ifm_data;/* statistics and other data about if */
121 * Message format for use in obtaining information about interface addresses
122 * from getkerninfo and the routing socket
125 u_short ifam_msglen; /* to skip over non-understood messages */
126 u_char ifam_version; /* future binary compatability */
127 u_char ifam_type; /* message type */
128 int ifam_addrs; /* like rtm_addrs */
129 int ifam_flags; /* value of ifa_flags */
130 u_short ifam_index; /* index for associated ifp */
131 int ifam_metric; /* value of ifa_metric */
135 * Message format for use in obtaining information about multicast addresses
136 * from the routing socket
139 u_short ifmam_msglen; /* to skip over non-understood messages */
140 u_char ifmam_version; /* future binary compatability */
141 u_char ifmam_type; /* message type */
142 int ifmam_addrs; /* like rtm_addrs */
143 int ifmam_flags; /* value of ifa_flags */
144 u_short ifmam_index; /* index for associated ifp */
148 * Interface request structure used for socket
149 * ioctl's. All interface ioctl's must have parameter
150 * definitions which begin with ifr_name. The
151 * remainder may be interface specific.
155 #define IF_NAMESIZE IFNAMSIZ
156 char ifr_name[IFNAMSIZ]; /* if name, e.g. "en0" */
158 struct sockaddr ifru_addr;
159 struct sockaddr ifru_dstaddr;
160 struct sockaddr ifru_broadaddr;
168 #define ifr_addr ifr_ifru.ifru_addr /* address */
169 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-to-p link */
170 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
171 #define ifr_flags ifr_ifru.ifru_flags[0] /* flags */
172 #define ifr_prevflags ifr_ifru.ifru_flags[1] /* flags */
173 #define ifr_metric ifr_ifru.ifru_metric /* metric */
174 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
175 #define ifr_phys ifr_ifru.ifru_phys /* physical wire */
176 #define ifr_media ifr_ifru.ifru_media /* physical media */
177 #define ifr_data ifr_ifru.ifru_data /* for use by interface */
180 #define _SIZEOF_ADDR_IFREQ(ifr) \
181 ((ifr).ifr_addr.sa_len > sizeof(struct sockaddr) ? \
182 (sizeof(struct ifreq) - sizeof(struct sockaddr) + \
183 (ifr).ifr_addr.sa_len) : sizeof(struct ifreq))
186 char ifra_name[IFNAMSIZ]; /* if name, e.g. "en0" */
187 struct sockaddr ifra_addr;
188 struct sockaddr ifra_broadaddr;
189 struct sockaddr ifra_mask;
193 char ifm_name[IFNAMSIZ]; /* if name, e.g. "en0" */
194 int ifm_current; /* current media options */
195 int ifm_mask; /* don't care mask */
196 int ifm_status; /* media status */
197 int ifm_active; /* active options */
198 int ifm_count; /* # entries in ifm_ulist array */
199 int *ifm_ulist; /* media words */
203 * Structure used to retrieve aux status data from interfaces.
204 * Kernel suppliers to this interface should respect the formatting
205 * needed by ifconfig(8): each line starts with a TAB and ends with
206 * a newline. The canonical example to copy and paste is in if_tun.c.
209 #define IFSTATMAX 800 /* 10 lines of text */
211 char ifs_name[IFNAMSIZ]; /* if name, e.g. "en0" */
212 char ascii[IFSTATMAX + 1];
216 * Structure used in SIOCGIFCONF request.
217 * Used to retrieve interface configuration
218 * for machine (useful for programs which
219 * must know all networks accessible).
222 int ifc_len; /* size of associated buffer */
225 struct ifreq *ifcu_req;
227 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
228 #define ifc_req ifc_ifcu.ifcu_req /* array of structures returned */
233 * Structure for SIOC[AGD]LIFADDR
236 char iflr_name[IFNAMSIZ];
238 #define IFLR_PREFIX 0x8000 /* in: prefix given out: kernel fills id */
239 u_int prefixlen; /* in/out */
240 struct sockaddr_storage addr; /* in/out */
241 struct sockaddr_storage dstaddr; /* out */
245 #ifdef MALLOC_DECLARE
246 MALLOC_DECLARE(M_IFADDR);
247 MALLOC_DECLARE(M_IFMADDR);
252 struct if_nameindex {
253 u_int if_index; /* 1, 2, ... */
254 char *if_name; /* null terminated name: "le0", ... */
258 u_int if_nametoindex __P((const char *));
259 char *if_indextoname __P((u_int, char *));
260 struct if_nameindex *if_nameindex __P((void));
261 void if_freenameindex __P((struct if_nameindex *));
268 int prison_if __P((struct proc *p, struct sockaddr *sa));
270 /* XXX - this should go away soon. */
271 #include <net/if_var.h>
274 #endif /* !_NET_IF_H_ */