cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

if.h (11015B)


      1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
      2/*
      3 * INET		An implementation of the TCP/IP protocol suite for the LINUX
      4 *		operating system.  INET is implemented using the  BSD Socket
      5 *		interface as the means of communication with the user level.
      6 *
      7 *		Global definitions for the INET interface module.
      8 *
      9 * Version:	@(#)if.h	1.0.2	04/18/93
     10 *
     11 * Authors:	Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988
     12 *		Ross Biro
     13 *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
     14 *
     15 *		This program is free software; you can redistribute it and/or
     16 *		modify it under the terms of the GNU General Public License
     17 *		as published by the Free Software Foundation; either version
     18 *		2 of the License, or (at your option) any later version.
     19 */
     20#ifndef _LINUX_IF_H
     21#define _LINUX_IF_H
     22
     23#include <linux/libc-compat.h>          /* for compatibility with glibc */
     24#include <linux/types.h>		/* for "__kernel_caddr_t" et al	*/
     25#include <linux/socket.h>		/* for "struct sockaddr" et al	*/
     26#include <linux/compiler.h>		/* for "__user" et al           */
     27
     28#ifndef __KERNEL__
     29#include <sys/socket.h>			/* for struct sockaddr.		*/
     30#endif
     31
     32#if __UAPI_DEF_IF_IFNAMSIZ
     33#define	IFNAMSIZ	16
     34#endif /* __UAPI_DEF_IF_IFNAMSIZ */
     35#define	IFALIASZ	256
     36#define	ALTIFNAMSIZ	128
     37#include <linux/hdlc/ioctl.h>
     38
     39/* For glibc compatibility. An empty enum does not compile. */
     40#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 || \
     41    __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0
     42/**
     43 * enum net_device_flags - &struct net_device flags
     44 *
     45 * These are the &struct net_device flags, they can be set by drivers, the
     46 * kernel and some can be triggered by userspace. Userspace can query and
     47 * set these flags using userspace utilities but there is also a sysfs
     48 * entry available for all dev flags which can be queried and set. These flags
     49 * are shared for all types of net_devices. The sysfs entries are available
     50 * via /sys/class/net/<dev>/flags. Flags which can be toggled through sysfs
     51 * are annotated below, note that only a few flags can be toggled and some
     52 * other flags are always preserved from the original net_device flags
     53 * even if you try to set them via sysfs. Flags which are always preserved
     54 * are kept under the flag grouping @IFF_VOLATILE. Flags which are volatile
     55 * are annotated below as such.
     56 *
     57 * You should have a pretty good reason to be extending these flags.
     58 *
     59 * @IFF_UP: interface is up. Can be toggled through sysfs.
     60 * @IFF_BROADCAST: broadcast address valid. Volatile.
     61 * @IFF_DEBUG: turn on debugging. Can be toggled through sysfs.
     62 * @IFF_LOOPBACK: is a loopback net. Volatile.
     63 * @IFF_POINTOPOINT: interface is has p-p link. Volatile.
     64 * @IFF_NOTRAILERS: avoid use of trailers. Can be toggled through sysfs.
     65 *	Volatile.
     66 * @IFF_RUNNING: interface RFC2863 OPER_UP. Volatile.
     67 * @IFF_NOARP: no ARP protocol. Can be toggled through sysfs. Volatile.
     68 * @IFF_PROMISC: receive all packets. Can be toggled through sysfs.
     69 * @IFF_ALLMULTI: receive all multicast packets. Can be toggled through
     70 *	sysfs.
     71 * @IFF_MASTER: master of a load balancer. Volatile.
     72 * @IFF_SLAVE: slave of a load balancer. Volatile.
     73 * @IFF_MULTICAST: Supports multicast. Can be toggled through sysfs.
     74 * @IFF_PORTSEL: can set media type. Can be toggled through sysfs.
     75 * @IFF_AUTOMEDIA: auto media select active. Can be toggled through sysfs.
     76 * @IFF_DYNAMIC: dialup device with changing addresses. Can be toggled
     77 *	through sysfs.
     78 * @IFF_LOWER_UP: driver signals L1 up. Volatile.
     79 * @IFF_DORMANT: driver signals dormant. Volatile.
     80 * @IFF_ECHO: echo sent packets. Volatile.
     81 */
     82enum net_device_flags {
     83/* for compatibility with glibc net/if.h */
     84#if __UAPI_DEF_IF_NET_DEVICE_FLAGS
     85	IFF_UP				= 1<<0,  /* sysfs */
     86	IFF_BROADCAST			= 1<<1,  /* volatile */
     87	IFF_DEBUG			= 1<<2,  /* sysfs */
     88	IFF_LOOPBACK			= 1<<3,  /* volatile */
     89	IFF_POINTOPOINT			= 1<<4,  /* volatile */
     90	IFF_NOTRAILERS			= 1<<5,  /* sysfs */
     91	IFF_RUNNING			= 1<<6,  /* volatile */
     92	IFF_NOARP			= 1<<7,  /* sysfs */
     93	IFF_PROMISC			= 1<<8,  /* sysfs */
     94	IFF_ALLMULTI			= 1<<9,  /* sysfs */
     95	IFF_MASTER			= 1<<10, /* volatile */
     96	IFF_SLAVE			= 1<<11, /* volatile */
     97	IFF_MULTICAST			= 1<<12, /* sysfs */
     98	IFF_PORTSEL			= 1<<13, /* sysfs */
     99	IFF_AUTOMEDIA			= 1<<14, /* sysfs */
    100	IFF_DYNAMIC			= 1<<15, /* sysfs */
    101#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */
    102#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
    103	IFF_LOWER_UP			= 1<<16, /* volatile */
    104	IFF_DORMANT			= 1<<17, /* volatile */
    105	IFF_ECHO			= 1<<18, /* volatile */
    106#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */
    107};
    108#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO != 0 || __UAPI_DEF_IF_NET_DEVICE_FLAGS != 0 */
    109
    110/* for compatibility with glibc net/if.h */
    111#if __UAPI_DEF_IF_NET_DEVICE_FLAGS
    112#define IFF_UP				IFF_UP
    113#define IFF_BROADCAST			IFF_BROADCAST
    114#define IFF_DEBUG			IFF_DEBUG
    115#define IFF_LOOPBACK			IFF_LOOPBACK
    116#define IFF_POINTOPOINT			IFF_POINTOPOINT
    117#define IFF_NOTRAILERS			IFF_NOTRAILERS
    118#define IFF_RUNNING			IFF_RUNNING
    119#define IFF_NOARP			IFF_NOARP
    120#define IFF_PROMISC			IFF_PROMISC
    121#define IFF_ALLMULTI			IFF_ALLMULTI
    122#define IFF_MASTER			IFF_MASTER
    123#define IFF_SLAVE			IFF_SLAVE
    124#define IFF_MULTICAST			IFF_MULTICAST
    125#define IFF_PORTSEL			IFF_PORTSEL
    126#define IFF_AUTOMEDIA			IFF_AUTOMEDIA
    127#define IFF_DYNAMIC			IFF_DYNAMIC
    128#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS */
    129
    130#if __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
    131#define IFF_LOWER_UP			IFF_LOWER_UP
    132#define IFF_DORMANT			IFF_DORMANT
    133#define IFF_ECHO			IFF_ECHO
    134#endif /* __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO */
    135
    136#define IFF_VOLATILE	(IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
    137		IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
    138
    139#define IF_GET_IFACE	0x0001		/* for querying only */
    140#define IF_GET_PROTO	0x0002
    141
    142/* For definitions see hdlc.h */
    143#define IF_IFACE_V35	0x1000		/* V.35 serial interface	*/
    144#define IF_IFACE_V24	0x1001		/* V.24 serial interface	*/
    145#define IF_IFACE_X21	0x1002		/* X.21 serial interface	*/
    146#define IF_IFACE_T1	0x1003		/* T1 telco serial interface	*/
    147#define IF_IFACE_E1	0x1004		/* E1 telco serial interface	*/
    148#define IF_IFACE_SYNC_SERIAL 0x1005	/* can't be set by software	*/
    149#define IF_IFACE_X21D   0x1006          /* X.21 Dual Clocking (FarSite) */
    150
    151/* For definitions see hdlc.h */
    152#define IF_PROTO_HDLC	0x2000		/* raw HDLC protocol		*/
    153#define IF_PROTO_PPP	0x2001		/* PPP protocol			*/
    154#define IF_PROTO_CISCO	0x2002		/* Cisco HDLC protocol		*/
    155#define IF_PROTO_FR	0x2003		/* Frame Relay protocol		*/
    156#define IF_PROTO_FR_ADD_PVC 0x2004	/*    Create FR PVC		*/
    157#define IF_PROTO_FR_DEL_PVC 0x2005	/*    Delete FR PVC		*/
    158#define IF_PROTO_X25	0x2006		/* X.25				*/
    159#define IF_PROTO_HDLC_ETH 0x2007	/* raw HDLC, Ethernet emulation	*/
    160#define IF_PROTO_FR_ADD_ETH_PVC 0x2008	/*  Create FR Ethernet-bridged PVC */
    161#define IF_PROTO_FR_DEL_ETH_PVC 0x2009	/*  Delete FR Ethernet-bridged PVC */
    162#define IF_PROTO_FR_PVC	0x200A		/* for reading PVC status	*/
    163#define IF_PROTO_FR_ETH_PVC 0x200B
    164#define IF_PROTO_RAW    0x200C          /* RAW Socket                   */
    165
    166/* RFC 2863 operational status */
    167enum {
    168	IF_OPER_UNKNOWN,
    169	IF_OPER_NOTPRESENT,
    170	IF_OPER_DOWN,
    171	IF_OPER_LOWERLAYERDOWN,
    172	IF_OPER_TESTING,
    173	IF_OPER_DORMANT,
    174	IF_OPER_UP,
    175};
    176
    177/* link modes */
    178enum {
    179	IF_LINK_MODE_DEFAULT,
    180	IF_LINK_MODE_DORMANT,	/* limit upward transition to dormant */
    181	IF_LINK_MODE_TESTING,	/* limit upward transition to testing */
    182};
    183
    184/*
    185 *	Device mapping structure. I'd just gone off and designed a 
    186 *	beautiful scheme using only loadable modules with arguments
    187 *	for driver options and along come the PCMCIA people 8)
    188 *
    189 *	Ah well. The get() side of this is good for WDSETUP, and it'll
    190 *	be handy for debugging things. The set side is fine for now and
    191 *	being very small might be worth keeping for clean configuration.
    192 */
    193
    194/* for compatibility with glibc net/if.h */
    195#if __UAPI_DEF_IF_IFMAP
    196struct ifmap {
    197	unsigned long mem_start;
    198	unsigned long mem_end;
    199	unsigned short base_addr; 
    200	unsigned char irq;
    201	unsigned char dma;
    202	unsigned char port;
    203	/* 3 bytes spare */
    204};
    205#endif /* __UAPI_DEF_IF_IFMAP */
    206
    207struct if_settings {
    208	unsigned int type;	/* Type of physical device or protocol */
    209	unsigned int size;	/* Size of the data allocated by the caller */
    210	union {
    211		/* {atm/eth/dsl}_settings anyone ? */
    212		raw_hdlc_proto		__user *raw_hdlc;
    213		cisco_proto		__user *cisco;
    214		fr_proto		__user *fr;
    215		fr_proto_pvc		__user *fr_pvc;
    216		fr_proto_pvc_info	__user *fr_pvc_info;
    217		x25_hdlc_proto		__user *x25;
    218
    219		/* interface settings */
    220		sync_serial_settings	__user *sync;
    221		te1_settings		__user *te1;
    222	} ifs_ifsu;
    223};
    224
    225/*
    226 * Interface request structure used for socket
    227 * ioctl's.  All interface ioctl's must have parameter
    228 * definitions which begin with ifr_name.  The
    229 * remainder may be interface specific.
    230 */
    231
    232/* for compatibility with glibc net/if.h */
    233#if __UAPI_DEF_IF_IFREQ
    234struct ifreq {
    235#define IFHWADDRLEN	6
    236	union
    237	{
    238		char	ifrn_name[IFNAMSIZ];		/* if name, e.g. "en0" */
    239	} ifr_ifrn;
    240	
    241	union {
    242		struct	sockaddr ifru_addr;
    243		struct	sockaddr ifru_dstaddr;
    244		struct	sockaddr ifru_broadaddr;
    245		struct	sockaddr ifru_netmask;
    246		struct  sockaddr ifru_hwaddr;
    247		short	ifru_flags;
    248		int	ifru_ivalue;
    249		int	ifru_mtu;
    250		struct  ifmap ifru_map;
    251		char	ifru_slave[IFNAMSIZ];	/* Just fits the size */
    252		char	ifru_newname[IFNAMSIZ];
    253		void __user *	ifru_data;
    254		struct	if_settings ifru_settings;
    255	} ifr_ifru;
    256};
    257#endif /* __UAPI_DEF_IF_IFREQ */
    258
    259#define ifr_name	ifr_ifrn.ifrn_name	/* interface name 	*/
    260#define ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address 		*/
    261#define	ifr_addr	ifr_ifru.ifru_addr	/* address		*/
    262#define	ifr_dstaddr	ifr_ifru.ifru_dstaddr	/* other end of p-p lnk	*/
    263#define	ifr_broadaddr	ifr_ifru.ifru_broadaddr	/* broadcast address	*/
    264#define	ifr_netmask	ifr_ifru.ifru_netmask	/* interface net mask	*/
    265#define	ifr_flags	ifr_ifru.ifru_flags	/* flags		*/
    266#define	ifr_metric	ifr_ifru.ifru_ivalue	/* metric		*/
    267#define	ifr_mtu		ifr_ifru.ifru_mtu	/* mtu			*/
    268#define ifr_map		ifr_ifru.ifru_map	/* device map		*/
    269#define ifr_slave	ifr_ifru.ifru_slave	/* slave device		*/
    270#define	ifr_data	ifr_ifru.ifru_data	/* for use by interface	*/
    271#define ifr_ifindex	ifr_ifru.ifru_ivalue	/* interface index	*/
    272#define ifr_bandwidth	ifr_ifru.ifru_ivalue    /* link bandwidth	*/
    273#define ifr_qlen	ifr_ifru.ifru_ivalue	/* Queue length 	*/
    274#define ifr_newname	ifr_ifru.ifru_newname	/* New name		*/
    275#define ifr_settings	ifr_ifru.ifru_settings	/* Device/proto settings*/
    276
    277/*
    278 * Structure used in SIOCGIFCONF request.
    279 * Used to retrieve interface configuration
    280 * for machine (useful for programs which
    281 * must know all networks accessible).
    282 */
    283
    284/* for compatibility with glibc net/if.h */
    285#if __UAPI_DEF_IF_IFCONF
    286struct ifconf  {
    287	int	ifc_len;			/* size of buffer	*/
    288	union {
    289		char __user *ifcu_buf;
    290		struct ifreq __user *ifcu_req;
    291	} ifc_ifcu;
    292};
    293#endif /* __UAPI_DEF_IF_IFCONF */
    294
    295#define	ifc_buf	ifc_ifcu.ifcu_buf		/* buffer address	*/
    296#define	ifc_req	ifc_ifcu.ifcu_req		/* array of structures	*/
    297
    298#endif /* _LINUX_IF_H */