1 | /* |
1 | /* |
2 | conf.h -- configuration database |
2 | conf.h -- configuration database |
3 | Copyright (C) 2003-2004 Marc Lehmann <pcg@goof.com> |
3 | Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de> |
4 | |
4 | |
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5 | This file is part of GVPE. |
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6 | |
5 | This program is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify |
6 | 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 |
7 | the Free Software Foundation; either version 2 of the License, or |
9 | the Free Software Foundation; either version 2 of the License, or |
8 | (at your option) any later version. |
10 | (at your option) any later version. |
9 | |
11 | |
10 | 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, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | GNU General Public License for more details. |
15 | GNU General Public License for more details. |
14 | |
16 | |
15 | 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 |
16 | along with this program; if not, write to the Free Software |
18 | along with gvpe; if not, write to the Free Software |
17 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
18 | */ |
20 | */ |
19 | |
21 | |
20 | #ifndef VPE_CONF_H__ |
22 | #ifndef GVPE_CONF_H__ |
21 | #define VPE_CONF_H__ |
23 | #define GVPE_CONF_H__ |
22 | |
24 | |
23 | #include <vector> |
25 | #include <vector> |
24 | |
26 | |
25 | #include <openssl/rsa.h> |
27 | #include <openssl/rsa.h> |
26 | |
28 | |
27 | #include "slog.h" |
29 | #include "slog.h" |
28 | #include "global.h" |
30 | #include "global.h" |
29 | |
31 | |
30 | #define DEFAULT_REKEY 3600 |
32 | #define DEFAULT_REKEY 3600 |
31 | #define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...) |
33 | #define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...) |
32 | #define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare |
34 | #define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare |
33 | #define DEFAULT_MTU 1500 // let's ether-net |
35 | #define DEFAULT_MTU 1500 // let's ether-net |
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36 | #define DEFAULT_MAX_RETRY 3600 // retry at least this often |
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37 | |
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38 | #define DEFAULT_DNS_TIMEOUT_FACTOR 8.F // initial retry timeout multiple |
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39 | #define DEFAULT_DNS_SEND_INTERVAL .01F // minimum send interval |
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40 | #define DEFAULT_DNS_OVERLAP_FACTOR .5F // RTT * LATENCY_FACTOR == sending rate |
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41 | #define DEFAULT_DNS_MAX_OUTSTANDING 100 // max. number of outstanding requests |
34 | |
42 | |
35 | enum { |
43 | enum |
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44 | { |
36 | PROT_UDPv4 = 0x01, // udp over ipv4 |
45 | PROT_UDPv4 = 0x01, // udp over ipv4 |
37 | PROT_IPv4 = 0x02, // generic ip protocol |
46 | PROT_IPv4 = 0x02, // generic ip protocol |
38 | PROT_TCPv4 = 0x04, // tcp over ipv4 |
47 | PROT_TCPv4 = 0x04, // tcp over ipv4 (server) |
39 | PROT_ICMPv4 = 0x08, // icmp over ipv4 |
48 | PROT_ICMPv4 = 0x08, // icmp over ipv4 |
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49 | PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server) |
40 | }; |
50 | }; |
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51 | |
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52 | #define PROT_RELIABLE (PROT_TCPv4 | PROT_DNSv4) |
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53 | #define PROT_SLOW PROT_DNSv4 |
41 | |
54 | |
42 | // select the "best" protocol of the available ones |
55 | // select the "best" protocol of the available ones |
43 | u8 best_protocol (u8 protset); |
56 | u8 best_protocol (u8 protset); |
44 | const char *strprotocol (u8 protocol); |
57 | const char *strprotocol (u8 protocol); |
45 | |
58 | |
46 | struct conf_node { |
59 | struct conf_node |
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60 | { |
47 | int id; // the id of this node, a 12-bit-number |
61 | int id; // the id of this node, a 12-bit-number |
48 | |
62 | |
49 | RSA *rsa_key; // his public key |
63 | RSA *rsa_key; // his public key |
50 | char *nodename; // nodename, an internal nickname. |
64 | char *nodename; // nodename, an internal nickname. |
51 | |
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52 | char *hostname; // hostname, if known, or NULL. |
65 | char *hostname; // hostname, if known, or NULL. |
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66 | char *if_up_data; |
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67 | #if ENABLE_DNS |
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68 | char *domain; // dns tunnel domain |
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69 | #endif |
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70 | char *dns_hostname; |
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71 | u16 dns_port; |
53 | |
72 | |
54 | u8 protocols; // protocols this host can send & receive |
73 | u8 protocols; // protocols this host can send & receive |
55 | u16 udp_port, tcp_port; // the port to bind to |
74 | u16 udp_port, tcp_port; // the port to bind to |
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75 | int max_retry; |
56 | |
76 | |
57 | enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; |
77 | enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; |
58 | bool compress; |
78 | bool compress; |
59 | bool inherit_tos; // inherit TOS in packets send to this destination |
79 | bool inherit_tos; // inherit TOS in packets send to this destination |
60 | |
80 | |
… | |
… | |
63 | void print (); |
83 | void print (); |
64 | |
84 | |
65 | ~conf_node (); |
85 | ~conf_node (); |
66 | }; |
86 | }; |
67 | |
87 | |
68 | struct configuration { |
88 | struct configuration |
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89 | { |
69 | typedef vector<conf_node *> node_vector; |
90 | typedef vector<conf_node *> node_vector; |
70 | node_vector nodes; |
91 | node_vector nodes; |
71 | conf_node default_node; |
92 | conf_node default_node; |
72 | conf_node *thisnode; |
93 | conf_node *thisnode; |
73 | int mtu; // the mtu used for outgoing tunnel packets |
94 | int mtu; // the mtu used for outgoing tunnel packets |
… | |
… | |
84 | #endif |
105 | #endif |
85 | |
106 | |
86 | char *script_if_up; |
107 | char *script_if_up; |
87 | char *script_node_up; |
108 | char *script_node_up; |
88 | char *script_node_down; |
109 | char *script_node_down; |
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110 | char *pidfilename; |
89 | |
111 | |
90 | #if ENABLE_HTTP_PROXY |
112 | #if ENABLE_HTTP_PROXY |
91 | char *proxy_auth; // login:password |
113 | char *proxy_auth; // login:password |
92 | char *proxy_host; // the proxy hostname, e.g. proxy1.example.net |
114 | char *proxy_host; // the proxy hostname, e.g. proxy1.example.net |
93 | u16 proxy_port; // the proxy port, e.g. 3128 |
115 | u16 proxy_port; // the proxy port, e.g. 3128 |
94 | #endif |
116 | #endif |
95 | |
117 | |
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118 | #if ENABLE_DNS |
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119 | char *dns_forw_host; |
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120 | u16 dns_forw_port; |
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121 | float dns_timeout_factor; |
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122 | float dns_send_interval; |
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123 | float dns_overlap_factor; |
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124 | int dns_max_outstanding; |
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125 | #endif |
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126 | |
96 | void init (); |
127 | void init (); |
97 | void cleanup (); |
128 | void cleanup (); |
98 | void read_config (bool need_keys); |
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99 | void clear_config (); |
129 | void clear (); |
100 | |
130 | |
101 | // create a filename from string, replacing %s by the nodename |
131 | // create a filename from string, replacing %s by the nodename |
102 | // and using relative paths under confbase. |
132 | // and using relative paths under confbase. |
103 | char *config_filename (const char *name, const char *dflt); |
133 | char *config_filename (const char *name, const char *dflt); |
104 | |
134 | |
… | |
… | |
106 | |
136 | |
107 | configuration (); |
137 | configuration (); |
108 | ~configuration (); |
138 | ~configuration (); |
109 | }; |
139 | }; |
110 | |
140 | |
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141 | struct configuration_parser |
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142 | { |
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143 | configuration &conf; |
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144 | |
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145 | bool need_keys; |
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146 | conf_node *node; |
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147 | |
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148 | int argc; |
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149 | char **argv; |
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150 | |
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151 | configuration_parser (configuration &conf, bool need_keys, int argc, char **argv); |
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152 | |
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153 | const char *parse_line (char *line); |
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154 | void parse_argv (); |
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155 | }; |
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156 | |
111 | extern struct configuration conf; |
157 | extern struct configuration conf; |
112 | |
158 | |
113 | #define THISNODE ::conf.thisnode |
159 | #define THISNODE ::conf.thisnode |
114 | |
160 | |
115 | #endif |
161 | #endif |