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      1 /*
      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.
      5  *
      6  *		Global definitions for the INET interface module.
      7  *
      8  * Version:	@(#)if.h	1.0.2	04/18/93
      9  *
     10  * Authors:	Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988
     11  *		Ross Biro
     12  *		Fred N. van Kempen, <waltje (at) uWalt.NL.Mugnet.ORG>
     13  *
     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.
     18  */
     19 #ifndef _LINUX_IF_H
     20 #define _LINUX_IF_H
     21 
     22 #define	IFNAMSIZ	16
     23 #define	IFALIASZ	256
     24 
     25 /* Standard interface flags (netdevice->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		/* interface RFC2863 OPER_UP	*/
     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*/
     36 
     37 #define IFF_MASTER	0x400		/* master of a load balancer 	*/
     38 #define IFF_SLAVE	0x800		/* slave of a load balancer	*/
     39 
     40 #define IFF_MULTICAST	0x1000		/* Supports multicast		*/
     41 
     42 #define IFF_PORTSEL	0x2000          /* can set media type		*/
     43 #define IFF_AUTOMEDIA	0x4000		/* auto media select active	*/
     44 #define IFF_DYNAMIC	0x8000		/* dialup device with changing addresses*/
     45 
     46 #define IFF_LOWER_UP	0x10000		/* driver signals L1 up		*/
     47 #define IFF_DORMANT	0x20000		/* driver signals dormant	*/
     48 
     49 #define IFF_ECHO	0x40000		/* echo sent packets		*/
     50 
     51 #define IFF_VOLATILE	(IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
     52 		IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
     53 
     54 /* Private (from user) interface flags (netdevice->priv_flags). */
     55 #define IFF_802_1Q_VLAN 0x1             /* 802.1Q VLAN device.          */
     56 #define IFF_EBRIDGE	0x2		/* Ethernet bridging device.	*/
     57 #define IFF_SLAVE_INACTIVE	0x4	/* bonding slave not the curr. active */
     58 #define IFF_MASTER_8023AD	0x8	/* bonding master, 802.3ad. 	*/
     59 #define IFF_MASTER_ALB	0x10		/* bonding master, balance-alb.	*/
     60 #define IFF_BONDING	0x20		/* bonding master or slave	*/
     61 #define IFF_SLAVE_NEEDARP 0x40		/* need ARPs for validation	*/
     62 #define IFF_ISATAP	0x80		/* ISATAP interface (RFC4214)	*/
     63 #define IFF_MASTER_ARPMON 0x100		/* bonding master, ARP mon in use */
     64 #define IFF_WAN_HDLC	0x200		/* WAN HDLC device		*/
     65 #define IFF_XMIT_DST_RELEASE 0x400	/* dev_hard_start_xmit() is allowed to
     66 					 * release skb->dst
     67 					 */
     68 #define IFF_DONT_BRIDGE 0x800		/* disallow bridging this ether dev */
     69 #define IFF_IN_NETPOLL	0x1000		/* whether we are processing netpoll */
     70 #define IFF_DISABLE_NETPOLL	0x2000	/* disable netpoll at run-time */
     71 #define IFF_MACVLAN_PORT	0x4000	/* device used as macvlan port */
     72 #define IFF_BRIDGE_PORT	0x8000		/* device used as bridge port */
     73 #define IFF_OVS_DATAPATH	0x10000	/* device used as Open vSwitch
     74 					 * datapath port */
     75 
     76 #define IF_GET_IFACE	0x0001		/* for querying only */
     77 #define IF_GET_PROTO	0x0002
     78 
     79 /* For definitions see hdlc.h */
     80 #define IF_IFACE_V35	0x1000		/* V.35 serial interface	*/
     81 #define IF_IFACE_V24	0x1001		/* V.24 serial interface	*/
     82 #define IF_IFACE_X21	0x1002		/* X.21 serial interface	*/
     83 #define IF_IFACE_T1	0x1003		/* T1 telco serial interface	*/
     84 #define IF_IFACE_E1	0x1004		/* E1 telco serial interface	*/
     85 #define IF_IFACE_SYNC_SERIAL 0x1005	/* can't be set by software	*/
     86 #define IF_IFACE_X21D   0x1006          /* X.21 Dual Clocking (FarSite) */
     87 
     88 /* For definitions see hdlc.h */
     89 #define IF_PROTO_HDLC	0x2000		/* raw HDLC protocol		*/
     90 #define IF_PROTO_PPP	0x2001		/* PPP protocol			*/
     91 #define IF_PROTO_CISCO	0x2002		/* Cisco HDLC protocol		*/
     92 #define IF_PROTO_FR	0x2003		/* Frame Relay protocol		*/
     93 #define IF_PROTO_FR_ADD_PVC 0x2004	/*    Create FR PVC		*/
     94 #define IF_PROTO_FR_DEL_PVC 0x2005	/*    Delete FR PVC		*/
     95 #define IF_PROTO_X25	0x2006		/* X.25				*/
     96 #define IF_PROTO_HDLC_ETH 0x2007	/* raw HDLC, Ethernet emulation	*/
     97 #define IF_PROTO_FR_ADD_ETH_PVC 0x2008	/*  Create FR Ethernet-bridged PVC */
     98 #define IF_PROTO_FR_DEL_ETH_PVC 0x2009	/*  Delete FR Ethernet-bridged PVC */
     99 #define IF_PROTO_FR_PVC	0x200A		/* for reading PVC status	*/
    100 #define IF_PROTO_FR_ETH_PVC 0x200B
    101 #define IF_PROTO_RAW    0x200C          /* RAW Socket                   */
    102 
    103 /* RFC 2863 operational status */
    104 enum {
    105 	IF_OPER_UNKNOWN,
    106 	IF_OPER_NOTPRESENT,
    107 	IF_OPER_DOWN,
    108 	IF_OPER_LOWERLAYERDOWN,
    109 	IF_OPER_TESTING,
    110 	IF_OPER_DORMANT,
    111 	IF_OPER_UP,
    112 };
    113 
    114 /* link modes */
    115 enum {
    116 	IF_LINK_MODE_DEFAULT,
    117 	IF_LINK_MODE_DORMANT,	/* limit upward transition to dormant */
    118 };
    119 
    120 /* carrier state */
    121 enum {
    122 	IF_CARRIER_DOWN,
    123 	IF_CARRIER_UP
    124 };
    125 
    126 /*
    127  *	Device mapping structure. I'd just gone off and designed a
    128  *	beautiful scheme using only loadable modules with arguments
    129  *	for driver options and along come the PCMCIA people 8)
    130  *
    131  *	Ah well. The get() side of this is good for WDSETUP, and it'll
    132  *	be handy for debugging things. The set side is fine for now and
    133  *	being very small might be worth keeping for clean configuration.
    134  */
    135 
    136 struct ifmap {
    137 	unsigned long mem_start;
    138 	unsigned long mem_end;
    139 	unsigned short base_addr;
    140 	unsigned char irq;
    141 	unsigned char dma;
    142 	unsigned char port;
    143 	/* 3 bytes spare */
    144 };
    145 
    146 #endif /* _LINUX_IF_H */
    147