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001: /*
002:  * INET         An implementation of the TCP/IP protocol suite for the LINUX
003:  *              operating system.  INET is implemented using the  BSD Socket
004:  *              interface as the means of communication with the user level.
005:  *
006:  *              Global definitions for the INET interface module.
007:  *
008:  * Version:     @(#)if.h        1.0.2   04/18/93
009:  *
010:  * Authors:     Original taken from Berkeley UNIX 4.3, (c) UCB 1982-1988
011:  *              Ross Biro
012:  *              Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
013:  *
014:  *              This program is free software; you can redistribute it and/or
015:  *              modify it under the terms of the GNU General Public License
016:  *              as published by the Free Software Foundation; either version
017:  *              2 of the License, or (at your option) any later version.
018:  */
019: #ifndef _LINUX_IF_H
020: #define _LINUX_IF_H
021: 
022: #include <linux/types.h>                /* for "__kernel_caddr_t" et al */
023: #include <linux/socket.h>               /* for "struct sockaddr" et al  */
024:                 /* for "__user" et al           */
025: 
026: #define IFNAMSIZ        16
027: #define IFALIASZ        256
028: #include <linux/hdlc/ioctl.h>
029: 
030: /* Standard interface flags (netdevice->flags). */
031: #define IFF_UP          0x1             /* interface is up              */
032: #define IFF_BROADCAST   0x2             /* broadcast address valid      */
033: #define IFF_DEBUG       0x4             /* turn on debugging            */
034: #define IFF_LOOPBACK    0x8             /* is a loopback net            */
035: #define IFF_POINTOPOINT 0x10            /* interface is has p-p link    */
036: #define IFF_NOTRAILERS  0x20            /* avoid use of trailers        */
037: #define IFF_RUNNING     0x40            /* interface RFC2863 OPER_UP    */
038: #define IFF_NOARP       0x80            /* no ARP protocol              */
039: #define IFF_PROMISC     0x100           /* receive all packets          */
040: #define IFF_ALLMULTI    0x200           /* receive all multicast packets*/
041: 
042: #define IFF_MASTER      0x400           /* master of a load balancer    */
043: #define IFF_SLAVE       0x800           /* slave of a load balancer     */
044: 
045: #define IFF_MULTICAST   0x1000          /* Supports multicast           */
046: 
047: #define IFF_PORTSEL     0x2000          /* can set media type           */
048: #define IFF_AUTOMEDIA   0x4000          /* auto media select active     */
049: #define IFF_DYNAMIC     0x8000          /* dialup device with changing addresses*/
050: 
051: #define IFF_LOWER_UP    0x10000         /* driver signals L1 up         */
052: #define IFF_DORMANT     0x20000         /* driver signals dormant       */
053: 
054: #define IFF_ECHO        0x40000         /* echo sent packets            */
055: 
056: #define IFF_VOLATILE    (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST|IFF_ECHO|\
057:                 IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)
058: 
059: /* Private (from user) interface flags (netdevice->priv_flags). */
060: #define IFF_802_1Q_VLAN 0x1             /* 802.1Q VLAN device.          */
061: #define IFF_EBRIDGE     0x2             /* Ethernet bridging device.    */
062: #define IFF_SLAVE_INACTIVE      0x4     /* bonding slave not the curr. active */
063: #define IFF_MASTER_8023AD       0x8     /* bonding master, 802.3ad.     */
064: #define IFF_MASTER_ALB  0x10            /* bonding master, balance-alb. */
065: #define IFF_BONDING     0x20            /* bonding master or slave      */
066: #define IFF_SLAVE_NEEDARP 0x40          /* need ARPs for validation     */
067: #define IFF_ISATAP      0x80            /* ISATAP interface (RFC4214)   */
068: #define IFF_MASTER_ARPMON 0x100         /* bonding master, ARP mon in use */
069: #define IFF_WAN_HDLC    0x200           /* WAN HDLC device              */
070: #define IFF_XMIT_DST_RELEASE 0x400      /* dev_hard_start_xmit() is allowed to
071:                                          * release skb->dst
072:                                          */
073: #define IFF_DONT_BRIDGE 0x800           /* disallow bridging this ether dev */
074: #define IFF_DISABLE_NETPOLL     0x1000  /* disable netpoll at run-time */
075: #define IFF_MACVLAN_PORT        0x2000  /* device used as macvlan port */
076: #define IFF_BRIDGE_PORT 0x4000          /* device used as bridge port */
077: #define IFF_OVS_DATAPATH        0x8000  /* device used as Open vSwitch
078:                                          * datapath port */
079: #define IFF_TX_SKB_SHARING      0x10000 /* The interface supports sharing
080:                                          * skbs on transmit */
081: #define IFF_UNICAST_FLT 0x20000         /* Supports unicast filtering   */
082: 
083: #define IF_GET_IFACE    0x0001          /* for querying only */
084: #define IF_GET_PROTO    0x0002
085: 
086: /* For definitions see hdlc.h */
087: #define IF_IFACE_V35    0x1000          /* V.35 serial interface        */
088: #define IF_IFACE_V24    0x1001          /* V.24 serial interface        */
089: #define IF_IFACE_X21    0x1002          /* X.21 serial interface        */
090: #define IF_IFACE_T1     0x1003          /* T1 telco serial interface    */
091: #define IF_IFACE_E1     0x1004          /* E1 telco serial interface    */
092: #define IF_IFACE_SYNC_SERIAL 0x1005     /* can't be set by software     */
093: #define IF_IFACE_X21D   0x1006          /* X.21 Dual Clocking (FarSite) */
094: 
095: /* For definitions see hdlc.h */
096: #define IF_PROTO_HDLC   0x2000          /* raw HDLC protocol            */
097: #define IF_PROTO_PPP    0x2001          /* PPP protocol                 */
098: #define IF_PROTO_CISCO  0x2002          /* Cisco HDLC protocol          */
099: #define IF_PROTO_FR     0x2003          /* Frame Relay protocol         */
100: #define IF_PROTO_FR_ADD_PVC 0x2004      /*    Create FR PVC             */
101: #define IF_PROTO_FR_DEL_PVC 0x2005      /*    Delete FR PVC             */
102: #define IF_PROTO_X25    0x2006          /* X.25                         */
103: #define IF_PROTO_HDLC_ETH 0x2007        /* raw HDLC, Ethernet emulation */
104: #define IF_PROTO_FR_ADD_ETH_PVC 0x2008  /*  Create FR Ethernet-bridged PVC */
105: #define IF_PROTO_FR_DEL_ETH_PVC 0x2009  /*  Delete FR Ethernet-bridged PVC */
106: #define IF_PROTO_FR_PVC 0x200A          /* for reading PVC status       */
107: #define IF_PROTO_FR_ETH_PVC 0x200B
108: #define IF_PROTO_RAW    0x200C          /* RAW Socket                   */
109: 
110: /* RFC 2863 operational status */
111: enum {
112:         IF_OPER_UNKNOWN,
113:         IF_OPER_NOTPRESENT,
114:         IF_OPER_DOWN,
115:         IF_OPER_LOWERLAYERDOWN,
116:         IF_OPER_TESTING,
117:         IF_OPER_DORMANT,
118:         IF_OPER_UP,
119: };
120: 
121: /* link modes */
122: enum {
123:         IF_LINK_MODE_DEFAULT,
124:         IF_LINK_MODE_DORMANT,   /* limit upward transition to dormant */
125: };
126: 
127: /*
128:  *      Device mapping structure. I'd just gone off and designed a 
129:  *      beautiful scheme using only loadable modules with arguments
130:  *      for driver options and along come the PCMCIA people 8)
131:  *
132:  *      Ah well. The get() side of this is good for WDSETUP, and it'll
133:  *      be handy for debugging things. The set side is fine for now and
134:  *      being very small might be worth keeping for clean configuration.
135:  */
136: 
137: struct ifmap {
138:         unsigned long mem_start;
139:         unsigned long mem_end;
140:         unsigned short base_addr; 
141:         unsigned char irq;
142:         unsigned char dma;
143:         unsigned char port;
144:         /* 3 bytes spare */
145: };
146: 
147: struct if_settings {
148:         unsigned int type;      /* Type of physical device or protocol */
149:         unsigned int size;      /* Size of the data allocated by the caller */
150:         union {
151:                 /* {atm/eth/dsl}_settings anyone ? */
152:                 raw_hdlc_proto          *raw_hdlc;
153:                 cisco_proto             *cisco;
154:                 fr_proto                *fr;
155:                 fr_proto_pvc            *fr_pvc;
156:                 fr_proto_pvc_info       *fr_pvc_info;
157: 
158:                 /* interface settings */
159:                 sync_serial_settings    *sync;
160:                 te1_settings            *te1;
161:         } ifs_ifsu;
162: };
163: 
164: /*
165:  * Interface request structure used for socket
166:  * ioctl's.  All interface ioctl's must have parameter
167:  * definitions which begin with ifr_name.  The
168:  * remainder may be interface specific.
169:  */
170: 
171: struct ifreq {
172: #define IFHWADDRLEN     6
173:         union
174:         {
175:                 char    ifrn_name[IFNAMSIZ];            /* if name, e.g. "en0" */
176:         } ifr_ifrn;
177:         
178:         union {
179:                 struct  sockaddr ifru_addr;
180:                 struct  sockaddr ifru_dstaddr;
181:                 struct  sockaddr ifru_broadaddr;
182:                 struct  sockaddr ifru_netmask;
183:                 struct  sockaddr ifru_hwaddr;
184:                 short   ifru_flags;
185:                 int     ifru_ivalue;
186:                 int     ifru_mtu;
187:                 struct  ifmap ifru_map;
188:                 char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
189:                 char    ifru_newname[IFNAMSIZ];
190:                 void *  ifru_data;
191:                 struct  if_settings ifru_settings;
192:         } ifr_ifru;
193: };
194: 
195: #define ifr_name        ifr_ifrn.ifrn_name      /* interface name       */
196: #define ifr_hwaddr      ifr_ifru.ifru_hwaddr    /* MAC address          */
197: #define ifr_addr        ifr_ifru.ifru_addr      /* address              */
198: #define ifr_dstaddr     ifr_ifru.ifru_dstaddr   /* other end of p-p lnk */
199: #define ifr_broadaddr   ifr_ifru.ifru_broadaddr /* broadcast address    */
200: #define ifr_netmask     ifr_ifru.ifru_netmask   /* interface net mask   */
201: #define ifr_flags       ifr_ifru.ifru_flags     /* flags                */
202: #define ifr_metric      ifr_ifru.ifru_ivalue    /* metric               */
203: #define ifr_mtu         ifr_ifru.ifru_mtu       /* mtu                  */
204: #define ifr_map         ifr_ifru.ifru_map       /* device map           */
205: #define ifr_slave       ifr_ifru.ifru_slave     /* slave device         */
206: #define ifr_data        ifr_ifru.ifru_data      /* for use by interface */
207: #define ifr_ifindex     ifr_ifru.ifru_ivalue    /* interface index      */
208: #define ifr_bandwidth   ifr_ifru.ifru_ivalue    /* link bandwidth       */
209: #define ifr_qlen        ifr_ifru.ifru_ivalue    /* Queue length         */
210: #define ifr_newname     ifr_ifru.ifru_newname   /* New name             */
211: #define ifr_settings    ifr_ifru.ifru_settings  /* Device/proto settings*/
212: 
213: /*
214:  * Structure used in SIOCGIFCONF request.
215:  * Used to retrieve interface configuration
216:  * for machine (useful for programs which
217:  * must know all networks accessible).
218:  */
219: 
220: struct ifconf  {
221:         int     ifc_len;                        /* size of buffer       */
222:         union {
223:                 char *ifcu_buf;
224:                 struct ifreq *ifcu_req;
225:         } ifc_ifcu;
226: };
227: #define ifc_buf ifc_ifcu.ifcu_buf               /* buffer address       */
228: #define ifc_req ifc_ifcu.ifcu_req               /* array of structures  */
229: 
230: #endif /* _LINUX_IF_H */
231: 

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