kernel/include/net/ndp.h

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   4  *  Copyright (C) 2009  Tomas 'ZeXx86' Jedrzejek (zexx86@zexos.org)
   5  *
   6  *  This program is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU 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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #ifndef _NDP_H
  21 #define _NDP_H
  22
  23 #include <net/ip.h>
  24
  25 #define NET_NDP_TYPE_RSOL               0x85
  26 #define NET_NDP_TYPE_RADVERT            0x86
  27 #define NET_NDP_TYPE_NBSOL              0x87
  28 #define NET_NDP_TYPE_NBADVERT           0x88
  29
  30 typedef struct ndp_cache_context {
  31         struct ndp_cache_context *next, *prev;
  32
  33         net_ipv6 ip;
  34         mac_addr_t mac;
  35 } ndp_cache_t;
  36
  37 /* ICMP - NDP layer structure */
  38 typedef struct proto_icmp_ndp2_t {
  39         unsigned char type;
  40         unsigned char code;
  41         unsigned short checksum;
  42         unsigned char hop_limit;
  43         unsigned char flags;
  44         unsigned short rlifetime;
  45         unsigned reach_time;
  46         unsigned retr_time;
  47
  48         /* 1. ICMPv6 options */
  49         unsigned char ptype;
  50         unsigned char length;
  51         unsigned char prefix_len;
  52         unsigned char pflags;
  53         unsigned valid_ltime;
  54         unsigned pref_ltime;
  55         unsigned unused;
  56         net_ipv6 prefix;
  57
  58         /* 2. ICMPv6 options */
  59         unsigned char ll_type;
  60         unsigned char ll_length;
  61         mac_addr_t ll_mac;
  62 } proto_icmp_ndp2_t;
  63
  64 typedef struct proto_ndp_sol_t {
  65         unsigned char type;
  66         unsigned char code;
  67         unsigned short checksum;
  68         unsigned unused;
  69         net_ipv6 target;
  70
  71         /* ICMPv6 options */
  72         unsigned char ll_type;
  73         unsigned char ll_length;
  74         mac_addr_t ll_mac;
  75 } proto_ndp_sol_t;
  76
  77 typedef struct proto_ndp_adv_t {
  78         unsigned char type;
  79         unsigned char code;
  80         unsigned short checksum;
  81         unsigned flags;
  82         net_ipv6 target;
  83
  84         /* ICMPv6 options */
  85         unsigned char ll_type;
  86         unsigned char ll_length;
  87         mac_addr_t ll_mac;
  88 } proto_ndp_adv_t;
  89
  90 extern unsigned ndp_cache_add (mac_addr_t mac, net_ipv6 ip);
  91 extern unsigned ndp_cache_get (net_ipv6 ip, mac_addr_t *mac);
  92 extern unsigned init_proto_ndp ();
  93
  94 #endif