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) 2003-2008 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 it |
6 | it under the terms of the GNU General Public License as published by |
8 | under the terms of the GNU General Public License as published by the |
7 | the Free Software Foundation; either version 2 of the License, or |
9 | Free Software Foundation; either version 3 of the License, or (at your |
8 | (at your option) any later version. |
10 | 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, but |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | 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 GNU General |
13 | GNU General Public License for more details. |
15 | 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 along |
16 | along with this program; if not, write to the Free Software |
18 | with this program; if not, see <http://www.gnu.org/licenses/>. |
17 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | |
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20 | Additional permission under GNU GPL version 3 section 7 |
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21 | |
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22 | If you modify this Program, or any covered work, by linking or |
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23 | combining it with the OpenSSL project's OpenSSL library (or a modified |
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24 | version of that library), containing parts covered by the terms of the |
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25 | OpenSSL or SSLeay licenses, the licensors of this Program grant you |
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26 | additional permission to convey the resulting work. Corresponding |
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27 | Source for a non-source form of such a combination shall include the |
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28 | source code for the parts of OpenSSL used as well as that of the |
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29 | covered work. |
18 | */ |
30 | */ |
19 | |
31 | |
20 | #ifndef VPE_CONF_H__ |
32 | #ifndef GVPE_CONF_H__ |
21 | #define VPE_CONF_H__ |
33 | #define GVPE_CONF_H__ |
22 | |
34 | |
23 | #include <vector> |
35 | #include <vector> |
24 | |
36 | |
25 | #include <openssl/rsa.h> |
37 | #include <openssl/rsa.h> |
26 | |
38 | |
27 | #include "slog.h" |
39 | #include "slog.h" |
28 | #include "global.h" |
40 | #include "global.h" |
29 | |
41 | |
30 | #define DEFAULT_REKEY 3600 |
42 | #define DEFAULT_REKEY 3600 |
31 | #define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...) |
43 | #define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...) |
32 | #define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare |
44 | #define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare |
33 | #define DEFAULT_MTU 1500 // let's ether-net |
45 | #define DEFAULT_MTU 1500 // let's ether-net |
34 | #define DEFAULT_MAX_RETRY 28800 // retry at least this often |
46 | #define DEFAULT_MAX_RETRY 3600 // retry at least this often |
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47 | #define DEFAULT_MAX_TTL 60 // packets expire after this many seconds |
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48 | #define DEFAULT_MAX_QUEUE 512 // never queue more than this many packets |
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49 | |
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50 | #define DEFAULT_DNS_TIMEOUT_FACTOR 8.F // initial retry timeout multiple |
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51 | #define DEFAULT_DNS_SEND_INTERVAL .01F // minimum send interval |
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52 | #define DEFAULT_DNS_OVERLAP_FACTOR .5F // RTT * LATENCY_FACTOR == sending rate |
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53 | #define DEFAULT_DNS_MAX_OUTSTANDING 100 // max. number of outstanding requests |
35 | |
54 | |
36 | enum { |
55 | enum |
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56 | { |
37 | PROT_UDPv4 = 0x01, // udp over ipv4 |
57 | PROT_UDPv4 = 0x01, // udp over ipv4 |
38 | PROT_IPv4 = 0x02, // generic ip protocol |
58 | PROT_IPv4 = 0x02, // generic ip protocol |
39 | PROT_TCPv4 = 0x04, // tcp over ipv4 (server) |
59 | PROT_TCPv4 = 0x04, // tcp over ipv4 (server) |
40 | PROT_ICMPv4 = 0x08, // icmp over ipv4 |
60 | PROT_ICMPv4 = 0x08, // icmp over ipv4 |
41 | PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server) |
61 | PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server) |
42 | }; |
62 | }; |
43 | |
63 | |
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64 | #define PROT_RELIABLE (PROT_TCPv4 | PROT_DNSv4) |
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65 | #define PROT_SLOW PROT_DNSv4 |
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66 | |
44 | // select the "best" protocol of the available ones |
67 | // select the "best" protocol of the available ones |
45 | u8 best_protocol (u8 protset); |
68 | u8 best_protocol (u8 protset); |
46 | const char *strprotocol (u8 protocol); |
69 | const char *strprotocol (u8 protocol); |
47 | |
70 | |
48 | struct conf_node { |
71 | struct conf_node |
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72 | { |
49 | int id; // the id of this node, a 12-bit-number |
73 | int id; // the id of this node, a 12-bit-number |
50 | |
74 | |
51 | RSA *rsa_key; // his public key |
75 | RSA *rsa_key; // his public key |
52 | char *nodename; // nodename, an internal nickname. |
76 | char *nodename; // nodename, an internal nickname. |
53 | char *hostname; // hostname, if known, or NULL. |
77 | char *hostname; // hostname, if known, or NULL. |
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78 | char *if_up_data; |
54 | #if ENABLE_DNS |
79 | #if ENABLE_DNS |
55 | char *domain; // dns tunnel domain |
80 | char *domain; // dns tunnel domain |
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81 | #endif |
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82 | char *dns_hostname; |
56 | u16 dns_port; |
83 | u16 dns_port; |
57 | #endif |
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58 | |
84 | |
59 | u8 protocols; // protocols this host can send & receive |
85 | u8 protocols; // protocols this host can send & receive |
60 | u16 udp_port, tcp_port; // the port to bind to |
86 | u16 udp_port, tcp_port; // the port to bind to |
61 | int max_retry; |
87 | int max_retry; |
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88 | double max_ttl; // packets expire after this many seconds |
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89 | int max_queue; // maixmum send queue length |
62 | |
90 | |
63 | enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; |
91 | enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; |
64 | bool compress; |
92 | bool compress; |
65 | bool inherit_tos; // inherit TOS in packets send to this destination |
93 | bool inherit_tos; // inherit TOS in packets send to this destination |
66 | |
94 | |
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95 | vector<const char *> allow_direct; |
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96 | vector<const char *> deny_direct; |
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97 | |
67 | u32 routerprio; |
98 | u32 routerprio; |
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99 | |
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100 | bool can_direct (struct conf_node *other); |
68 | |
101 | |
69 | void print (); |
102 | void print (); |
70 | |
103 | |
71 | ~conf_node (); |
104 | ~conf_node (); |
72 | }; |
105 | }; |
73 | |
106 | |
74 | struct configuration { |
107 | struct configuration |
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108 | { |
75 | typedef vector<conf_node *> node_vector; |
109 | typedef vector<conf_node *> node_vector; |
76 | node_vector nodes; |
110 | node_vector nodes; |
77 | conf_node default_node; |
111 | conf_node default_node; |
78 | conf_node *thisnode; |
112 | conf_node *thisnode; |
79 | int mtu; // the mtu used for outgoing tunnel packets |
113 | int mtu; // the mtu used for outgoing tunnel packets |
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97 | #if ENABLE_HTTP_PROXY |
131 | #if ENABLE_HTTP_PROXY |
98 | char *proxy_auth; // login:password |
132 | char *proxy_auth; // login:password |
99 | char *proxy_host; // the proxy hostname, e.g. proxy1.example.net |
133 | char *proxy_host; // the proxy hostname, e.g. proxy1.example.net |
100 | u16 proxy_port; // the proxy port, e.g. 3128 |
134 | u16 proxy_port; // the proxy port, e.g. 3128 |
101 | #endif |
135 | #endif |
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136 | |
102 | #if ENABLE_DNS |
137 | #if ENABLE_DNS |
103 | char *dns_forw_host; |
138 | char *dns_forw_host; |
104 | u16 dns_forw_port; |
139 | u16 dns_forw_port; |
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140 | float dns_timeout_factor; |
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141 | float dns_send_interval; |
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142 | float dns_overlap_factor; |
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143 | int dns_max_outstanding; |
105 | #endif |
144 | #endif |
106 | |
145 | |
107 | void init (); |
146 | void init (); |
108 | void cleanup (); |
147 | void cleanup (); |
109 | void read_config (bool need_keys); |
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110 | void clear_config (); |
148 | void clear (); |
111 | |
149 | |
112 | // create a filename from string, replacing %s by the nodename |
150 | // create a filename from string, replacing %s by the nodename |
113 | // and using relative paths under confbase. |
151 | // and using relative paths under confbase. |
114 | char *config_filename (const char *name, const char *dflt); |
152 | char *config_filename (const char *name, const char *dflt); |
115 | |
153 | |
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117 | |
155 | |
118 | configuration (); |
156 | configuration (); |
119 | ~configuration (); |
157 | ~configuration (); |
120 | }; |
158 | }; |
121 | |
159 | |
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160 | struct configuration_parser |
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161 | { |
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162 | configuration &conf; |
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163 | |
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164 | bool need_keys; |
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165 | conf_node *node; |
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166 | |
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167 | int argc; |
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168 | char **argv; |
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169 | |
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170 | configuration_parser (configuration &conf, bool need_keys, int argc, char **argv); |
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171 | |
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172 | const char *parse_line (char *line); |
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173 | void parse_argv (); |
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174 | }; |
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175 | |
122 | extern struct configuration conf; |
176 | extern struct configuration conf; |
123 | |
177 | |
124 | #define THISNODE ::conf.thisnode |
178 | #define THISNODE ::conf.thisnode |
125 | |
179 | |
126 | #endif |
180 | #endif |