sysdeps/unix/sysv/linux/netpacket/packet.h

   1 /* Definitions for use with Linux AF_PACKET sockets.
   2    Copyright (C) 1998 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef __NETPACKET_PACKET_H
  21 #define __NETPACKET_PACKET_H    1
  22
  23 struct sockaddr_ll
  24   {
  25     unsigned short int sll_family;
  26     unsigned short int sll_protocol;
  27     int sll_ifindex;
  28     unsigned short int sll_hatype;
  29     unsigned char sll_pkttype;
  30     unsigned char sll_halen;
  31     unsigned char sll_addr[8];
  32   };
  33
  34 /* Packet types.  */
  35
  36 #define PACKET_HOST             0               /* To us.  */
  37 #define PACKET_BROADCAST        1               /* To all.  */
  38 #define PACKET_MULTICAST        2               /* To group.  */
  39 #define PACKET_OTHERHOST        3               /* To someone else.  */
  40 #define PACKET_OUTGOING         4               /* Originated by us . */
  41 #define PACKET_LOOPBACK         5
  42 #define PACKET_FASTROUTE        6
  43
  44 /* Packet socket options.  */
  45
  46 #define PACKET_ADD_MEMBERSHIP           1
  47 #define PACKET_DROP_MEMBERSHIP          2
  48
  49 struct packet_mreq
  50   {
  51     int mr_ifindex;
  52     unsigned short int mr_type;
  53     unsigned short int mr_alen;
  54     unsigned char mr_address[8];
  55   };
  56
  57 #define PACKET_MR_MULTICAST     0
  58 #define PACKET_MR_PROMISC       1
  59 #define PACKET_MR_ALLMULTI      2
  60
  61 #endif  /* netpacket/packet.h */