1 | /* |
1 | /* |
2 | conf.h -- configuration database |
2 | conf.h -- configuration database |
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3 | Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de> |
3 | |
4 | |
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5 | This file is part of GVPE. |
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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_CONF_H__ |
22 | #ifndef GVPE_CONF_H__ |
20 | #define VPE_CONF_H__ |
23 | #define GVPE_CONF_H__ |
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24 | |
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25 | #include <vector> |
21 | |
26 | |
22 | #include <openssl/rsa.h> |
27 | #include <openssl/rsa.h> |
23 | |
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24 | #include <vector> |
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25 | |
28 | |
26 | #include "slog.h" |
29 | #include "slog.h" |
27 | #include "global.h" |
30 | #include "global.h" |
28 | |
31 | |
29 | #define DEFAULT_REKEY 3600 |
32 | #define DEFAULT_REKEY 3600 |
30 | #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...) |
31 | #define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare |
34 | #define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare |
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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 |
32 | |
42 | |
33 | enum { |
43 | enum |
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44 | { |
34 | PROT_UDPv4 = 1, // udp over ipv4 |
45 | PROT_UDPv4 = 0x01, // udp over ipv4 |
35 | PROT_IPv4 = 2, // generic ip protocol |
46 | PROT_IPv4 = 0x02, // generic ip protocol |
36 | PROT_TCPv4 = 4, // tcp over ipv4 (NYI) |
47 | PROT_TCPv4 = 0x04, // tcp over ipv4 (server) |
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48 | PROT_ICMPv4 = 0x08, // icmp over ipv4 |
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49 | PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server) |
37 | }; |
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 |
38 | |
54 | |
39 | // select the "best" protocol of the available ones |
55 | // select the "best" protocol of the available ones |
40 | u8 best_protocol (u8 protset); |
56 | u8 best_protocol (u8 protset); |
41 | const char *strprotocol (u8 protocol); |
57 | const char *strprotocol (u8 protocol); |
42 | |
58 | |
43 | struct conf_node { |
59 | struct conf_node |
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60 | { |
44 | int id; // the id of this node, a 12-bit-number |
61 | int id; // the id of this node, a 12-bit-number |
45 | |
62 | |
46 | RSA *rsa_key; // his public key |
63 | RSA *rsa_key; // his public key |
47 | char *nodename; // nodename, an internal nickname. |
64 | char *nodename; // nodename, an internal nickname. |
48 | |
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49 | 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; |
50 | |
72 | |
51 | u8 protocols; // protocols this host can send & receive |
73 | u8 protocols; // protocols this host can send & receive |
52 | 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; |
53 | |
76 | |
54 | enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; |
77 | enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; |
55 | bool compress; |
78 | bool compress; |
56 | bool inherit_tos; // inherit TOS in packets send to this destination |
79 | bool inherit_tos; // inherit TOS in packets send to this destination |
57 | |
80 | |
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81 | vector<const char *> allow_direct; |
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82 | vector<const char *> deny_direct; |
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83 | |
58 | u32 routerprio; |
84 | u32 routerprio; |
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85 | |
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86 | bool can_direct (struct conf_node *other); |
59 | |
87 | |
60 | void print (); |
88 | void print (); |
61 | |
89 | |
62 | ~conf_node (); |
90 | ~conf_node (); |
63 | }; |
91 | }; |
64 | |
92 | |
65 | struct configuration { |
93 | struct configuration |
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94 | { |
66 | typedef vector<conf_node *> node_vector; |
95 | typedef vector<conf_node *> node_vector; |
67 | node_vector nodes; |
96 | node_vector nodes; |
68 | conf_node default_node; |
97 | conf_node default_node; |
69 | conf_node *thisnode; |
98 | conf_node *thisnode; |
70 | int mtu; // the mtu used for outgoing tunnel packets |
99 | int mtu; // the mtu used for outgoing tunnel packets |
… | |
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73 | char *ifname; // the interface name (tap0 ...) |
102 | char *ifname; // the interface name (tap0 ...) |
74 | bool ifpersist; // should the interface be persistent |
103 | bool ifpersist; // should the interface be persistent |
75 | char *prikeyfile; |
104 | char *prikeyfile; |
76 | RSA *rsa_key; // our private rsa key |
105 | RSA *rsa_key; // our private rsa key |
77 | loglevel llevel; |
106 | loglevel llevel; |
78 | u8 ip_proto; // the ip protocol to use |
107 | u8 ip_proto; // the ip protocol to use |
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108 | #if ENABLE_ICMP |
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109 | u8 icmp_type; // the icmp type for the icmp-protocol |
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110 | #endif |
79 | |
111 | |
80 | char *script_if_up; |
112 | char *script_if_up; |
81 | char *script_node_up; |
113 | char *script_node_up; |
82 | char *script_node_down; |
114 | char *script_node_down; |
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115 | char *pidfilename; |
83 | |
116 | |
84 | #if ENABLE_HTTP_PROXY |
117 | #if ENABLE_HTTP_PROXY |
85 | char *proxy_auth; // login:password |
118 | char *proxy_auth; // login:password |
86 | char *proxy_host; // the proxy hostname, e.g. proxy1.example.net |
119 | char *proxy_host; // the proxy hostname, e.g. proxy1.example.net |
87 | u16 proxy_port; // the proxy port, e.g. 3128 |
120 | u16 proxy_port; // the proxy port, e.g. 3128 |
88 | #endif |
121 | #endif |
89 | |
122 | |
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123 | #if ENABLE_DNS |
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124 | char *dns_forw_host; |
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125 | u16 dns_forw_port; |
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126 | float dns_timeout_factor; |
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127 | float dns_send_interval; |
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128 | float dns_overlap_factor; |
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129 | int dns_max_outstanding; |
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130 | #endif |
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131 | |
90 | void init (); |
132 | void init (); |
91 | void cleanup (); |
133 | void cleanup (); |
92 | void read_config (bool need_keys); |
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93 | void clear_config (); |
134 | void clear (); |
94 | |
135 | |
95 | // create a filename from string, replacing %s by the nodename |
136 | // create a filename from string, replacing %s by the nodename |
96 | // and using relative paths under confbase. |
137 | // and using relative paths under confbase. |
97 | char *config_filename (const char *name, const char *dflt); |
138 | char *config_filename (const char *name, const char *dflt); |
98 | |
139 | |
… | |
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100 | |
141 | |
101 | configuration (); |
142 | configuration (); |
102 | ~configuration (); |
143 | ~configuration (); |
103 | }; |
144 | }; |
104 | |
145 | |
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146 | struct configuration_parser |
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147 | { |
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148 | configuration &conf; |
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149 | |
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150 | bool need_keys; |
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151 | conf_node *node; |
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152 | |
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153 | int argc; |
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154 | char **argv; |
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155 | |
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156 | configuration_parser (configuration &conf, bool need_keys, int argc, char **argv); |
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157 | |
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158 | const char *parse_line (char *line); |
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159 | void parse_argv (); |
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160 | }; |
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161 | |
105 | extern struct configuration conf; |
162 | extern struct configuration conf; |
106 | |
163 | |
107 | #define THISNODE ::conf.thisnode |
164 | #define THISNODE ::conf.thisnode |
108 | |
165 | |
109 | #endif |
166 | #endif |