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

   1 /* Definitions for use with Linux AF_PACKET sockets.
   2    Copyright (C) 1998-2014 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 Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef __NETPACKET_PACKET_H
  20 #define __NETPACKET_PACKET_H    1
  21
  22 struct sockaddr_ll
  23   {
  24     unsigned short int sll_family;
  25     unsigned short int sll_protocol;
  26     int sll_ifindex;
  27     unsigned short int sll_hatype;
  28     unsigned char sll_pkttype;
  29     unsigned char sll_halen;
  30     unsigned char sll_addr[8];
  31   };
  32
  33 /* Packet types.  */
  34
  35 #define PACKET_HOST             0               /* To us.  */
  36 #define PACKET_BROADCAST        1               /* To all.  */
  37 #define PACKET_MULTICAST        2               /* To group.  */
  38 #define PACKET_OTHERHOST        3               /* To someone else.  */
  39 #define PACKET_OUTGOING         4               /* Originated by us . */
  40 #define PACKET_LOOPBACK         5
  41 #define PACKET_FASTROUTE        6
  42
  43 /* Packet socket options.  */
  44
  45 #define PACKET_ADD_MEMBERSHIP           1
  46 #define PACKET_DROP_MEMBERSHIP          2
  47 #define PACKET_RECV_OUTPUT              3
  48 #define PACKET_RX_RING                  5
  49 #define PACKET_STATISTICS               6
  50
  51 struct packet_mreq
  52   {
  53     int mr_ifindex;
  54     unsigned short int mr_type;
  55     unsigned short int mr_alen;
  56     unsigned char mr_address[8];
  57   };
  58
  59 #define PACKET_MR_MULTICAST     0
  60 #define PACKET_MR_PROMISC       1
  61 #define PACKET_MR_ALLMULTI      2
  62
  63 #endif  /* netpacket/packet.h */