sys/netproto/atalk/aarp.h

   1 /*
   2  * Copyright (c) 1990,1991 Regents of The University of Michigan.
   3  * All Rights Reserved.
   4  *
   5  * $FreeBSD: src/sys/netatalk/aarp.h,v 1.3 1999/12/29 04:45:57 peter Exp $
   6  * $DragonFly: src/sys/netproto/atalk/aarp.h,v 1.2 2003/06/17 04:28:48 dillon Exp $
   7  */
   8
   9 #ifndef _NETATALK_AARP_H_
  10 /*
  11  * This structure is used for both phase 1 and 2. Under phase 1
  12  * the net is not filled in. It is in phase 2. In both cases, the
  13  * hardware address length is (for some unknown reason) 4. If
  14  * anyone at Apple could program their way out of paper bag, it
  15  * would be 1 and 3 respectively for phase 1 and 2.
  16  */
  17 union aapa {
  18     u_char              ap_pa[4];
  19     struct ap_node {
  20         u_char          an_zero;
  21         u_char          an_net[2];
  22         u_char          an_node;
  23     } ap_node;
  24 };
  25
  26 struct ether_aarp {
  27     struct arphdr       eaa_hdr;
  28     u_char              aarp_sha[6];
  29     union aapa          aarp_spu;
  30     u_char              aarp_tha[6];
  31     union aapa          aarp_tpu;
  32 };
  33 #define aarp_hrd        eaa_hdr.ar_hrd
  34 #define aarp_pro        eaa_hdr.ar_pro
  35 #define aarp_hln        eaa_hdr.ar_hln
  36 #define aarp_pln        eaa_hdr.ar_pln
  37 #define aarp_op         eaa_hdr.ar_op
  38 #define aarp_spa        aarp_spu.ap_node.an_node
  39 #define aarp_tpa        aarp_tpu.ap_node.an_node
  40 #define aarp_spnet      aarp_spu.ap_node.an_net
  41 #define aarp_tpnet      aarp_tpu.ap_node.an_net
  42 #define aarp_spnode     aarp_spu.ap_node.an_node
  43 #define aarp_tpnode     aarp_tpu.ap_node.an_node
  44
  45 struct aarptab {
  46     struct at_addr      aat_ataddr;
  47     u_char              aat_enaddr[ 6 ];
  48     u_char              aat_timer;
  49     u_char              aat_flags;
  50     struct mbuf         *aat_hold;
  51 };
  52
  53 #define AARPHRD_ETHER   0x0001
  54
  55 #define AARPOP_REQUEST  0x01
  56 #define AARPOP_RESPONSE 0x02
  57 #define AARPOP_PROBE    0x03
  58
  59 #ifdef _KERNEL
  60 struct aarptab          *aarptnew(struct at_addr      *);
  61 #endif
  62
  63 #endif /* _NETATALK_AARP_H_ */