workbench/network/stacks/AROSTCP/bsdsocket/net/sana2arp.h

   1 /*
   2  * Copyright (C) 1993 AmiTCP/IP Group, <amitcp-group@hut.fi>
   3  *                    Helsinki University of Technology, Finland.
   4  *                    All rights reserved.
   5  * Copyright (C) 2005 Neil Cafferkey
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  19  * MA 02111-1307, USA.
  20  *
  21  */
  22
  23 #ifndef IF_ARPSANA_H
  24 #define IF_ARPSANA_H
  25
  26 #ifndef IF_H
  27 #include <net/if.h>
  28 #endif
  29
  30 #ifndef IF_ARP_H
  31 #include <net/if_arp.h>
  32 #endif
  33
  34 /*
  35  * Address Resolution Protocol.
  36  *
  37  * See RFC 826 for protocol description.  Structure below is adapted
  38  * to resolving  addresses.  Field names used correspond to
  39  * RFC 826.
  40  */
  41 struct s2_arppkt {
  42   struct        arphdr s2a_hdr;   /* fixed-size header */
  43   struct {
  44       u_char sha_dum[MAXADDRARP]; /* space for sender hardware address */
  45       u_char spa_dum[MAXADDRARP]; /* space for sender protocol address */
  46       u_char tha_dum[MAXADDRARP]; /* space for target hardware address */
  47       u_char tpa_dum[MAXADDRARP]; /* space for target protocol address */
  48   } arpdata;
  49 };
  50 #define arp_hrd s2a_hdr.ar_hrd
  51 #define arp_pro s2a_hdr.ar_pro
  52 #define arp_hln s2a_hdr.ar_hln
  53 #define arp_pln s2a_hdr.ar_pln
  54 #define arp_op  s2a_hdr.ar_op
  55
  56 #define ARPTAB_HSIZE    11      /* hash table size */
  57 #define ARPENTRIES      11*15   /* normal amount of ARP entries to allocate */
  58 #define ARPENTRIES_MIN  11      /* minimum # of ARP entries to allocate */
  59
  60 /*
  61  * timer values
  62  */
  63 #define ARPT_AGE        (60*1)  /* aging timer, 1 min. */
  64 #define ARPT_KILLC      20      /* kill completed entry in 20 mins. */
  65 #define ARPT_KILLI      3       /* kill incomplete entry in 3 minutes */
  66
  67 #ifdef  KERNEL
  68 void alloc_arptable(struct sana_softc* ssc, int to_allocate);
  69 void arptimer(void);
  70 int arpresolve(register struct sana_softc *ssc, struct mbuf * m,
  71                register struct in_addr *destip, register u_char * desten,
  72                int * error);
  73 void arpinput(struct sana_softc *ssc, struct mbuf *m, caddr_t srcaddr);
  74 int arpioctl(int cmd, caddr_t data);
  75 #endif
  76
  77 #endif /* !IF_ARPSANA_H */