2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
6 * Global definitions for the INET interface module.
8 * Version: @(#)if.h 1.0.2 04/18/93
10 * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988
11 * Ross Biro, <bir7@leland.Stanford.Edu>
12 * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version
17 * 2 of the License, or (at your option) any later version.
22 #include <linux/types.h> /* for "__kernel_caddr_t" et al */
23 #include <linux/socket.h> /* for "struct sockaddr" et al */
25 /* Standard interface flags. */
26 #define IFF_UP 0x1 /* interface is up */
27 #define IFF_BROADCAST 0x2 /* broadcast address valid */
28 #define IFF_DEBUG 0x4 /* turn on debugging */
29 #define IFF_LOOPBACK 0x8 /* is a loopback net */
30 #define IFF_POINTOPOINT 0x10 /* interface is has p-p link */
31 #define IFF_NOTRAILERS 0x20 /* avoid use of trailers */
32 #define IFF_RUNNING 0x40 /* resources allocated */
33 #define IFF_NOARP 0x80 /* no ARP protocol */
34 #define IFF_PROMISC 0x100 /* receive all packets */
35 #define IFF_ALLMULTI 0x200 /* receive all multicast packets*/
37 #define IFF_MASTER 0x400 /* master of a load balancer */
38 #define IFF_SLAVE 0x800 /* slave of a load balancer */
40 #define IFF_MULTICAST 0x1000 /* Supports multicast */
42 #define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_MASTER|IFF_SLAVE|IFF_RUNNING)
44 #define IFF_PORTSEL 0x2000 /* can set media type */
45 #define IFF_AUTOMEDIA 0x4000 /* auto media select active */
46 #define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses*/
49 * Device mapping structure. I'd just gone off and designed a
50 * beautiful scheme using only loadable modules with arguments
51 * for driver options and along come the PCMCIA people 8)
53 * Ah well. The get() side of this is good for WDSETUP, and it'll
54 * be handy for debugging things. The set side is fine for now and
55 * being very small might be worth keeping for clean configuration.
60 unsigned long mem_start
;
61 unsigned long mem_end
;
62 unsigned short base_addr
;
70 * Interface request structure used for socket
71 * ioctl's. All interface ioctl's must have parameter
72 * definitions which begin with ifr_name. The
73 * remainder may be interface specific.
82 char ifrn_name
[IFNAMSIZ
]; /* if name, e.g. "en0" */
86 struct sockaddr ifru_addr
;
87 struct sockaddr ifru_dstaddr
;
88 struct sockaddr ifru_broadaddr
;
89 struct sockaddr ifru_netmask
;
90 struct sockaddr ifru_hwaddr
;
94 struct ifmap ifru_map
;
95 char ifru_slave
[IFNAMSIZ
]; /* Just fits the size */
96 char ifru_newname
[IFNAMSIZ
];
101 #define ifr_name ifr_ifrn.ifrn_name /* interface name */
102 #define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
103 #define ifr_addr ifr_ifru.ifru_addr /* address */
104 #define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */
105 #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
106 #define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */
107 #define ifr_flags ifr_ifru.ifru_flags /* flags */
108 #define ifr_metric ifr_ifru.ifru_ivalue /* metric */
109 #define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
110 #define ifr_map ifr_ifru.ifru_map /* device map */
111 #define ifr_slave ifr_ifru.ifru_slave /* slave device */
112 #define ifr_data ifr_ifru.ifru_data /* for use by interface */
113 #define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */
114 #define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */
115 #define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */
116 #define ifr_newname ifr_ifru.ifru_newname /* New name */
119 * Structure used in SIOCGIFCONF request.
120 * Used to retrieve interface configuration
121 * for machine (useful for programs which
122 * must know all networks accessible).
127 int ifc_len
; /* size of buffer */
131 struct ifreq
*ifcu_req
;
134 #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
135 #define ifc_req ifc_ifcu.ifcu_req /* array of structures */
138 #endif /* _LINUX_IF_H */