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/cvs/gvpe/src/connection.h
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Comparing gvpe/src/connection.h (file contents):
Revision 1.4 by pcg, Wed Apr 2 21:02:25 2003 UTC vs.
Revision 1.13 by pcg, Tue Jan 27 05:56:35 2004 UTC

1/* 1/*
2 connection.h -- header for connection.C 2 connection.h -- header for connection.C
3 Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com>
3 4
4 This program is free software; you can redistribute it and/or modify 5 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by 6 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 7 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version. 8 (at your option) any later version.
… …
17*/ 18*/
18 19
19#ifndef VPE_CONNECTION_H__ 20#ifndef VPE_CONNECTION_H__
20#define VPE_CONNECTION_H__ 21#define VPE_CONNECTION_H__
21 22
22#include <netinet/ip.h> // for tos etc.
23
24#include <openssl/hmac.h> 23#include <openssl/hmac.h>
25 24
26#include "global.h" 25#include "global.h"
27#include "conf.h" 26#include "conf.h"
28#include "sockinfo.h" 27#include "sockinfo.h"
… …
36 35
37struct rsaid { 36struct rsaid {
38 u8 id[RSA_IDLEN]; // the challenge id 37 u8 id[RSA_IDLEN]; // the challenge id
39}; 38};
40 39
41typedef u8 rsachallenge[RSA_KEYLEN - RSA_OVERHEAD]; // challenge data; 40typedef rsaclear rsachallenge; // challenge data;
42typedef u8 rsaencrdata[RSA_KEYLEN]; // encrypted challenge 41typedef rsacrypt rsaencrdata; // encrypted challenge
43typedef u8 rsaresponse[RSA_RESLEN]; // the encrypted ripemd160 hash 42typedef u8 rsaresponse[RSA_RESLEN]; // the encrypted ripemd160 hash
44 43
45//////////////////////////////////////////////////////////////////////////////////////// 44////////////////////////////////////////////////////////////////////////////////////////
46 45
47struct crypto_ctx; 46struct crypto_ctx;
48 47
49struct hmac_packet:net_packet 48struct hmac_packet : net_packet
50{ 49{
51 u8 hmac[HMACLENGTH]; // each and every packet has a hmac field, but that is not (yet) checked everywhere 50 u8 hmac[HMACLENGTH]; // each and every packet has a hmac field, but that is not (yet) checked everywhere
52 51
53 void hmac_set (crypto_ctx * ctx); 52 void hmac_set (crypto_ctx * ctx);
54 bool hmac_chk (crypto_ctx * ctx); 53 bool hmac_chk (crypto_ctx * ctx);
… …
75 }; 74 };
76 75
77 u8 type; 76 u8 type;
78 u8 srcdst, src1, dst1; 77 u8 srcdst, src1, dst1;
79 78
80 void set_hdr (ptype type, unsigned int dst); 79 void set_hdr (ptype type_, unsigned int dst);
81 80
82 unsigned int src () const 81 unsigned int src () const
83 { 82 {
84 return src1 | ((srcdst >> 4) << 8); 83 return src1 | ((srcdst >> 4) << 8);
85 } 84 }
… …
98//////////////////////////////////////////////////////////////////////////////////////// 97////////////////////////////////////////////////////////////////////////////////////////
99 98
100// a very simple fifo pkt-queue 99// a very simple fifo pkt-queue
101class pkt_queue 100class pkt_queue
102 { 101 {
103 tap_packet *queue[QUEUEDEPTH]; 102 net_packet *queue[QUEUEDEPTH];
104 int i, j; 103 int i, j;
105 104
106 public: 105 public:
107 106
108 void put (tap_packet *p); 107 void put (net_packet *p);
109 tap_packet *get (); 108 net_packet *get ();
110 109
111 pkt_queue (); 110 pkt_queue ();
112 ~pkt_queue (); 111 ~pkt_queue ();
113 }; 112 };
114 113
… …
125 u32 oseqno; 124 u32 oseqno;
126 sliding_window iseqno; 125 sliding_window iseqno;
127 126
128 u8 protocol; 127 u8 protocol;
129 128
130 pkt_queue queue; 129 pkt_queue data_queue, vpn_queue;
131 130
132 crypto_ctx *octx, *ictx; 131 crypto_ctx *octx, *ictx;
133 132
134 enum conf_node::connectmode connectmode; 133 enum conf_node::connectmode connectmode;
135 u8 prot_minor; // minor number of other side 134 u8 prot_minor; // minor number of other side
136 135
137 void reset_dstaddr (); 136 void reset_si ();
137 const sockinfo &forward_si (const sockinfo &si) const;
138 138
139 void shutdown (); 139 void shutdown ();
140 void connection_established ();
140 void reset_connection (); 141 void reset_connection ();
142
141 void establish_connection_cb (time_watcher &w); time_watcher establish_connection; 143 void establish_connection_cb (time_watcher &w); time_watcher establish_connection;
142 void rekey_cb (time_watcher &w); time_watcher rekey; // next rekying (actually current reset + reestablishing) 144 void rekey_cb (time_watcher &w); time_watcher rekey; // next rekying (actually current reset + reestablishing)
143 void keepalive_cb (time_watcher &w); time_watcher keepalive; // next keepalive probe 145 void keepalive_cb (time_watcher &w); time_watcher keepalive; // next keepalive probe
144 146
147 void send_connect_request (int id);
145 void send_auth_request (const sockinfo &si, bool initiate); 148 void send_auth_request (const sockinfo &si, bool initiate);
146 void send_auth_response (const sockinfo &si, const rsaid &id, const rsachallenge &chg); 149 void send_auth_response (const sockinfo &si, const rsaid &id, const rsachallenge &chg);
147 void send_connect_info (int rid, const sockinfo &rsi, u8 rprotocols); 150 void send_connect_info (int rid, const sockinfo &rsi, u8 rprotocols);
148 void send_reset (const sockinfo &dsi); 151 void send_reset (const sockinfo &dsi);
149 void send_ping (const sockinfo &dsi, u8 pong = 0); 152 void send_ping (const sockinfo &dsi, u8 pong = 0);
150 void send_data_packet (tap_packet *pkt, bool broadcast = false); 153 void send_data_packet (tap_packet *pkt);
154
151 void inject_data_packet (tap_packet *pkt, bool broadcast = false); 155 void inject_data_packet (tap_packet *pkt, bool broadcast = false);
152 void connect_request (int id); 156 void inject_vpn_packet (vpn_packet *pkt, int tos = 0); // for forwarding
153 157
154 void send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = IPTOS_RELIABILITY); 158 void send_vpn_packet (vpn_packet *pkt, const sockinfo &si, int tos = 0);
155 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi); 159 void recv_vpn_packet (vpn_packet *pkt, const sockinfo &rsi);
156 160
157 void script_node (); 161 void script_node ();
158 const char *script_node_up (); 162 const char *script_node_up ();
159 const char *script_node_down (); 163 const char *script_node_down ();

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