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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note *//* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket * interface as the means of communication with the user level. * * Global definitions for the INET interface module. * * Version: @(#)if.h 1.0.2 04/18/93 * * Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988 * Ross Biro * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */#ifndef _LINUX_IF_H#define _LINUX_IF_H
#include <linux/libc-compat.h> /* for compatibility with glibc */#include <linux/types.h> /* for "__kernel_caddr_t" et al */#include <linux/socket.h> /* for "struct sockaddr" et al */#include <linux/compiler.h> /* for "__user" et al */
#ifndef __KERNEL__#include <sys/socket.h> /* for struct sockaddr. */#endif
#if __UAPI_DEF_IF_IFNAMSIZ#define IFNAMSIZ 16#endif /* __UAPI_DEF_IF_IFNAMSIZ */#define IFALIASZ 256#define ALTIFNAMSIZ 128#include <linux/hdlc/ioctl.h>
/* For glibc compatibility. An empty enum does not compile. */#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 || \ __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0/** * enum net_device_flags - &struct net_device flags * * These are the &struct net_device flags, they can be set by drivers, the * kernel and some can be triggered by userspace. Userspace can query and * set these flags using userspace utilities but there is also a sysfs * entry available for all dev flags which can be queried and set. These flags * are shared for all types of net_devices. The sysfs entries are available * via /sys/class/net/<dev>/flags. Flags which can be toggled through sysfs * are annotated below, note that only a few flags can be toggled and some * other flags are always preserved from the original net_device flags * even if you try to set them via sysfs. Flags which are always preserved * are kept under the flag grouping @IFF_VOLATILE. Flags which are volatile * are annotated below as such. * * You should have a pretty good reason to be extending these flags. * * @IFF_UP: interface is up. Can be toggled through sysfs. * @IFF_BROADCAST: broadcast address valid. Volatile. * @IFF_DEBUG: turn on debugging. Can be toggled through sysfs. * @IFF_LOOPBACK: is a loopback net. Volatile. * @IFF_POINTOPOINT: interface is has p-p link. Volatile. * @IFF_NOTRAILERS: avoid use of trailers. Can be toggled through sysfs. * Volatile. * @IFF_RUNNING: interface RFC2863 OPER_UP. Volatile. * @IFF_NOARP: no ARP protocol. Can be toggled through sysfs. Volatile. * @IFF_PROMISC: receive all packets. Can be toggled through sysfs. * @IFF_ALLMULTI: receive all multicast packets. Can be toggled through * sysfs. * @IFF_MASTER: master of a load balancer. Volatile. * @IFF_SLAVE: slave of a load balancer. Volatile. * @IFF_MULTICAST: Supports multicast. Can be toggled through sysfs. * @IFF_PORTSEL: can set media type. Can be toggled through sysfs. * @IFF_AUTOMEDIA: auto media select active. Can be toggled through sysfs. * @IFF_DYNAMIC: dialup device with changing addresses. Can be toggled * through sysfs. * @IFF_LOWER_UP: driver signals L1 up. Volatile. * @IFF_DORMANT: driver signals dormant. Volatile. * @IFF_ECHO: echo sent packets. Volatile. */enum net_device_flags {/* for compatibility with glibc net/if.h */#if __UAPI_DEF_IF_NET_DEVICE_FLAGS IFF_UP = 1<<0, /* sysfs */ IFF_BROADCAST = 1<<1, /* volatile */ IFF_DEBUG = 1<<2, /* sysfs */ IFF_LOOPBACK = 1<<3, /* volatile */ IFF_POINTOPOINT = 1<<4, /* volatile */ IFF_NOTRAILERS = 1<<5, /* sysfs */ IFF_RUNNING = 1<<6, /* volatile */ IFF_NOARP = 1<<7, /* sysfs */ IFF_PROMISC = 1<<8, /* sysfs */ IFF_ALLMULTI = 1<<9, /* sysfs */ IFF_MASTER = 1<<10, /* volatile */ IFF_SLAVE = 1<<11, /* volatile */ IFF_MULTICAST = 1<<12, /* sysfs */ IFF_PORTSEL = 1<<13, /* sysfs */ IFF_AUTOMEDIA = 1<<14, /* sysfs */ IFF_DYNAMIC = 1<<15, /* sysfs */#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO IFF_LOWER_UP = 1<<16, /* volatile */ IFF_DORMANT = 1<<17, /* volatile */ IFF_ECHO = 1<<18, /* volatile */#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */};#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 || __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0 */
/* for compatibility with glibc net/if.h */#if __UAPI_DEF_IF_NET_DEVICE_FLAGS#define IFF_UP IFF_UP#define IFF_BROADCAST IFF_BROADCAST#define IFF_DEBUG IFF_DEBUG#define IFF_LOOPBACK IFF_LOOPBACK#define IFF_POINTOPOINT IFF_POINTOPOINT#define IFF_NOTRAILERS IFF_NOTRAILERS#define IFF_RUNNING IFF_RUNNING#define IFF_NOARP IFF_NOARP#define IFF_PROMISC IFF_PROMISC#define IFF_ALLMULTI IFF_ALLMULTI#define IFF_MASTER IFF_MASTER#define IFF_SLAVE IFF_SLAVE#define IFF_MULTICAST IFF_MULTICAST#define IFF_PORTSEL IFF_PORTSEL#define IFF_AUTOMEDIA IFF_AUTOMEDIA#define IFF_DYNAMIC IFF_DYNAMIC#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */
#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO#define IFF_LOWER_UP IFF_LOWER_UP#define IFF_DORMANT IFF_DORMANT#define IFF_ECHO IFF_ECHO#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */
#define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\ IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
#define IF_GET_IFACE 0x0001 /* for querying only */#define IF_GET_PROTO 0x0002
/* For definitions see hdlc.h */#define IF_IFACE_V35 0x1000 /* V.35 serial interface */#define IF_IFACE_V24 0x1001 /* V.24 serial interface */#define IF_IFACE_X21 0x1002 /* X.21 serial interface */#define IF_IFACE_T1 0x1003 /* T1 telco serial interface */#define IF_IFACE_E1 0x1004 /* E1 telco serial interface */#define IF_IFACE_SYNC_SERIAL 0x1005 /* can't be set by software */#define IF_IFACE_X21D 0x1006 /* X.21 Dual Clocking (FarSite) */
/* For definitions see hdlc.h */#define IF_PROTO_HDLC 0x2000 /* raw HDLC protocol */#define IF_PROTO_PPP 0x2001 /* PPP protocol */#define IF_PROTO_CISCO 0x2002 /* Cisco HDLC protocol */#define IF_PROTO_FR 0x2003 /* Frame Relay protocol */#define IF_PROTO_FR_ADD_PVC 0x2004 /* Create FR PVC */#define IF_PROTO_FR_DEL_PVC 0x2005 /* Delete FR PVC */#define IF_PROTO_X25 0x2006 /* X.25 */#define IF_PROTO_HDLC_ETH 0x2007 /* raw HDLC, Ethernet emulation */#define IF_PROTO_FR_ADD_ETH_PVC 0x2008 /* Create FR Ethernet-bridged PVC */#define IF_PROTO_FR_DEL_ETH_PVC 0x2009 /* Delete FR Ethernet-bridged PVC */#define IF_PROTO_FR_PVC 0x200A /* for reading PVC status */#define IF_PROTO_FR_ETH_PVC 0x200B#define IF_PROTO_RAW 0x200C /* RAW Socket */
/* RFC 2863 operational status */enum { IF_OPER_UNKNOWN, IF_OPER_NOTPRESENT, IF_OPER_DOWN, IF_OPER_LOWERLAYERDOWN, IF_OPER_TESTING, IF_OPER_DORMANT, IF_OPER_UP,};
/* link modes */enum { IF_LINK_MODE_DEFAULT, IF_LINK_MODE_DORMANT, /* limit upward transition to dormant */ IF_LINK_MODE_TESTING, /* limit upward transition to testing */};
/* * Device mapping structure. I'd just gone off and designed a * beautiful scheme using only loadable modules with arguments * for driver options and along come the PCMCIA people 8) * * Ah well. The get() side of this is good for WDSETUP, and it'll * be handy for debugging things. The set side is fine for now and * being very small might be worth keeping for clean configuration. */
/* for compatibility with glibc net/if.h */#if __UAPI_DEF_IF_IFMAPstruct ifmap { unsigned long mem_start; unsigned long mem_end; unsigned short base_addr; unsigned char irq; unsigned char dma; unsigned char port; /* 3 bytes spare */};#endif /* __UAPI_DEF_IF_IFMAP */
struct if_settings { unsigned int type; /* Type of physical device or protocol */ unsigned int size; /* Size of the data allocated by the caller */ union { /* {atm/eth/dsl}_settings anyone ? */ raw_hdlc_proto __user *raw_hdlc; cisco_proto __user *cisco; fr_proto __user *fr; fr_proto_pvc __user *fr_pvc; fr_proto_pvc_info __user *fr_pvc_info; x25_hdlc_proto __user *x25;
/* interface settings */ sync_serial_settings __user *sync; te1_settings __user *te1; } ifs_ifsu;};
/* * Interface request structure used for socket * ioctl's. All interface ioctl's must have parameter * definitions which begin with ifr_name. The * remainder may be interface specific. */
/* for compatibility with glibc net/if.h */#if __UAPI_DEF_IF_IFREQstruct ifreq {#define IFHWADDRLEN 6 union { char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */ } ifr_ifrn; union { struct sockaddr ifru_addr; struct sockaddr ifru_dstaddr; struct sockaddr ifru_broadaddr; struct sockaddr ifru_netmask; struct sockaddr ifru_hwaddr; short ifru_flags; int ifru_ivalue; int ifru_mtu; struct ifmap ifru_map; char ifru_slave[IFNAMSIZ]; /* Just fits the size */ char ifru_newname[IFNAMSIZ]; void __user * ifru_data; struct if_settings ifru_settings; } ifr_ifru;};#endif /* __UAPI_DEF_IF_IFREQ */
#define ifr_name ifr_ifrn.ifrn_name /* interface name */#define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */#define ifr_addr ifr_ifru.ifru_addr /* address */#define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */#define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */#define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */#define ifr_flags ifr_ifru.ifru_flags /* flags */#define ifr_metric ifr_ifru.ifru_ivalue /* metric */#define ifr_mtu ifr_ifru.ifru_mtu /* mtu */#define ifr_map ifr_ifru.ifru_map /* device map */#define ifr_slave ifr_ifru.ifru_slave /* slave device */#define ifr_data ifr_ifru.ifru_data /* for use by interface */#define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */#define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */#define ifr_qlen ifr_ifru.ifru_ivalue /* Queue length */#define ifr_newname ifr_ifru.ifru_newname /* New name */#define ifr_settings ifr_ifru.ifru_settings /* Device/proto settings*/
/* * Structure used in SIOCGIFCONF request. * Used to retrieve interface configuration * for machine (useful for programs which * must know all networks accessible). */
/* for compatibility with glibc net/if.h */#if __UAPI_DEF_IF_IFCONFstruct ifconf { int ifc_len; /* size of buffer */ union { char __user *ifcu_buf; struct ifreq __user *ifcu_req; } ifc_ifcu;};#endif /* __UAPI_DEF_IF_IFCONF */
#define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */#define ifc_req ifc_ifcu.ifcu_req /* array of structures */
#endif /* _LINUX_IF_H */