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Comparing gvpe/src/connection.h (file contents):
Revision 1.6 by pcg, Sun Apr 6 04:17:36 2003 UTC vs.
Revision 1.25 by pcg, Tue Apr 26 00:55:56 2005 UTC

1/* 1/*
2 connection.h -- header for connection.C 2 connection.h -- header for connection.C
3 Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de>
3 4
5 This file is part of GVPE.
6
4 This program is free software; you can redistribute it and/or modify 7 GVPE is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by 8 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or 9 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version. 10 (at your option) any later version.
8 11
9 This program is distributed in the hope that it will be useful, 12 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details. 15 GNU General Public License for more details.
13 16
14 You should have received a copy of the GNU General Public License 17 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software 18 along with gvpe; if not, write to the Free Software
16 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17*/ 20*/
18 21
19#ifndef VPE_CONNECTION_H__ 22#ifndef GVPE_CONNECTION_H__
20#define VPE_CONNECTION_H__ 23#define GVPE_CONNECTION_H__
21 24
22#include <openssl/hmac.h> 25#include <openssl/hmac.h>
23 26
24#include "global.h" 27#include "global.h"
25#include "conf.h" 28#include "conf.h"
… …
34 37
35struct rsaid { 38struct rsaid {
36 u8 id[RSA_IDLEN]; // the challenge id 39 u8 id[RSA_IDLEN]; // the challenge id
37}; 40};
38 41
39typedef u8 rsachallenge[RSA_KEYLEN - RSA_OVERHEAD]; // challenge data; 42typedef rsaclear rsachallenge; // challenge data;
40typedef u8 rsaencrdata[RSA_KEYLEN]; // encrypted challenge 43typedef rsacrypt rsaencrdata; // encrypted challenge
41typedef u8 rsaresponse[RSA_RESLEN]; // the encrypted ripemd160 hash 44typedef u8 rsaresponse[RSA_RESLEN]; // the encrypted ripemd160 hash
42 45
43//////////////////////////////////////////////////////////////////////////////////////// 46////////////////////////////////////////////////////////////////////////////////////////
44 47
45struct crypto_ctx; 48struct crypto_ctx;
46 49
47struct hmac_packet:net_packet 50struct hmac_packet : net_packet
48{ 51{
49 u8 hmac[HMACLENGTH]; // each and every packet has a hmac field, but that is not (yet) checked everywhere 52 u8 hmac[HMACLENGTH]; // each and every packet has a hmac field, but that is not (yet) checked everywhere
50 53
51 void hmac_set (crypto_ctx * ctx); 54 void hmac_set (crypto_ctx * ctx);
52 bool hmac_chk (crypto_ctx * ctx); 55 bool hmac_chk (crypto_ctx * ctx);
… …
96//////////////////////////////////////////////////////////////////////////////////////// 99////////////////////////////////////////////////////////////////////////////////////////
97 100
98// a very simple fifo pkt-queue 101// a very simple fifo pkt-queue
99class pkt_queue 102class pkt_queue
100 { 103 {
101 tap_packet *queue[QUEUEDEPTH]; 104 net_packet *queue[QUEUEDEPTH];
102 int i, j; 105 int i, j;
103 106
104 public: 107 public:
105 108
106 void put (tap_packet *p); 109 void put (net_packet *p);
107 tap_packet *get (); 110 net_packet *get ();
108 111
109 pkt_queue (); 112 pkt_queue ();
110 ~pkt_queue (); 113 ~pkt_queue ();
114 };
115
116enum
117 {
118 FEATURE_COMPRESSION = 0x01,
119 FEATURE_ROHC = 0x02,
111 }; 120 };
112 121
113struct connection 122struct connection
114 { 123 {
115 conf_node *conf; 124 conf_node *conf;
… …
122 131
123 u32 oseqno; 132 u32 oseqno;
124 sliding_window iseqno; 133 sliding_window iseqno;
125 134
126 u8 protocol; 135 u8 protocol;
136 u8 features;
127 137
128 pkt_queue queue; 138 pkt_queue data_queue, vpn_queue;
129 139
130 crypto_ctx *octx, *ictx; 140 crypto_ctx *octx, *ictx;
141
142#if ENABLE_DNS
143 struct dns_connection *dns;
144
145 void dnsv4_reset_connection ();
146#endif
131 147
132 enum conf_node::connectmode connectmode; 148 enum conf_node::connectmode connectmode;
133 u8 prot_minor; // minor number of other side 149 u8 prot_minor; // minor number of other side
134 150
135 void reset_si (); 151 void reset_si ();
136 const sockinfo &forward_si (const sockinfo &si) const; 152 const sockinfo &forward_si (const sockinfo &si) const;
137 153
138 void shutdown (); 154 void shutdown ();
155 void connection_established ();
139 void reset_connection (); 156 void reset_connection ();
157
140 void establish_connection_cb (time_watcher &w); time_watcher establish_connection; 158 void establish_connection_cb (time_watcher &w); time_watcher establish_connection;
141 void rekey_cb (time_watcher &w); time_watcher rekey; // next rekying (actually current reset + reestablishing) 159 void rekey_cb (time_watcher &w); time_watcher rekey; // next rekying (actually current reset + reestablishing)
142 void keepalive_cb (time_watcher &w); time_watcher keepalive; // next keepalive probe 160 void keepalive_cb (time_watcher &w); time_watcher keepalive; // next keepalive probe
143 161
162 void send_connect_request (int id);
144 void send_auth_request (const sockinfo &si, bool initiate); 163 void send_auth_request (const sockinfo &si, bool initiate);
145 void send_auth_response (const sockinfo &si, const rsaid &id, const rsachallenge &chg); 164 void send_auth_response (const sockinfo &si, const rsaid &id, const rsachallenge &chg);
146 void send_connect_info (int rid, const sockinfo &rsi, u8 rprotocols); 165 void send_connect_info (int rid, const sockinfo &rsi, u8 rprotocols);
147 void send_reset (const sockinfo &dsi); 166 void send_reset (const sockinfo &dsi);
148 void send_ping (const sockinfo &dsi, u8 pong = 0); 167 void send_ping (const sockinfo &dsi, u8 pong = 0);
149 void send_data_packet (tap_packet *pkt, bool broadcast = false); 168 void send_data_packet (tap_packet *pkt);
169
150 void inject_data_packet (tap_packet *pkt, bool broadcast = false); 170 void inject_data_packet (tap_packet *pkt, bool broadcast = false);
151 void inject_vpn_packet (vpn_packet *pkt, int tos = 0); // for forwarding 171 void inject_vpn_packet (vpn_packet *pkt, int tos = 0); // for forwarding
152 void connect_request (int id);
153 172
154 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi); 173 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi);
174 void send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = 0);
155 175
176 void script_init_env (const char *ext);
156 void script_node (); 177 void script_init_connect_env ();
157 const char *script_node_up (); 178 const char *script_node_up ();
158 const char *script_node_down (); 179 const char *script_node_down ();
159 180
160 void dump_status (); 181 void dump_status ();
161 182
162 connection(struct vpn *vpn_); 183 connection (struct vpn *vpn, conf_node *conf);
163 ~connection (); 184 ~connection ();
164 }; 185 };
165 186
166#endif 187#endif
167 188

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