1 | /* |
1 | /* |
2 | conf.h -- configuration database |
2 | conf.h -- configuration database |
3 | Copyright (C) 2003-2005 Marc Lehmann <gvpe@schmorp.de> |
3 | Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de> |
4 | |
4 | |
5 | This file is part of GVPE. |
5 | This file is part of GVPE. |
6 | |
6 | |
7 | GVPE is free software; you can redistribute it and/or modify |
7 | GVPE is free software; you can redistribute it and/or modify it |
8 | 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 |
9 | the Free Software Foundation; either version 2 of the License, or |
9 | Free Software Foundation; either version 3 of the License, or (at your |
10 | (at your option) any later version. |
10 | option) any later version. |
11 | |
11 | |
12 | 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 |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
15 | GNU General Public License for more details. |
15 | Public License for more details. |
16 | |
16 | |
17 | 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 |
18 | along with gvpe; if not, write to the Free Software |
18 | with this program; if not, see <http://www.gnu.org/licenses/>. |
19 | Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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. |
20 | */ |
30 | */ |
21 | |
31 | |
22 | #ifndef GVPE_CONF_H__ |
32 | #ifndef GVPE_CONF_H__ |
23 | #define GVPE_CONF_H__ |
33 | #define GVPE_CONF_H__ |
24 | |
34 | |
25 | #include <vector> |
35 | #include <vector> |
26 | |
36 | |
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37 | #include <sys/types.h> |
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38 | |
27 | #include <openssl/rsa.h> |
39 | #include <openssl/rsa.h> |
28 | |
40 | |
29 | #include "slog.h" |
41 | #include "slog.h" |
30 | #include "global.h" |
42 | #include "global.h" |
31 | |
43 | |
32 | #define DEFAULT_REKEY 3600 |
44 | #define DEFAULT_REKEY 3607 // interval between rekeys |
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45 | #define DEFAULT_RESEED 3613 // interval between rng reseeds |
33 | #define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...) |
46 | #define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...) |
34 | #define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare |
47 | #define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare |
35 | #define DEFAULT_MTU 1500 // let's ether-net |
48 | #define DEFAULT_MTU 1500 // let's ether-net |
36 | #define DEFAULT_MAX_RETRY 3600 // retry at least this often |
49 | #define DEFAULT_MAX_RETRY 3600 // retry at least this often |
37 | #define DEFAULT_MAX_TTL 60 // packets expire after this many seconds |
50 | #define DEFAULT_MAX_TTL 60 // packets expire after this many seconds |
38 | #define DEFAULT_MAX_QUEUE 512 // never queue more than this many packets |
51 | #define DEFAULT_MAX_QUEUE 512 // never queue more than this many packets |
39 | |
52 | |
40 | #define DEFAULT_DNS_TIMEOUT_FACTOR 8.F // initial retry timeout multiple |
53 | #define DEFAULT_DNS_TIMEOUT_FACTOR 8.F // initial retry timeout multiple |
41 | #define DEFAULT_DNS_SEND_INTERVAL .01F // minimum send interval |
54 | #define DEFAULT_DNS_SEND_INTERVAL .01F // minimum send interval |
42 | #define DEFAULT_DNS_OVERLAP_FACTOR .5F // RTT * LATENCY_FACTOR == sending rate |
55 | #define DEFAULT_DNS_OVERLAP_FACTOR .5F // RTT * LATENCY_FACTOR == sending rate |
43 | #define DEFAULT_DNS_MAX_OUTSTANDING 100 // max. number of outstanding requests |
56 | #define DEFAULT_DNS_MAX_OUTSTANDING 100 // max. number of outstanding requests |
… | |
… | |
47 | PROT_UDPv4 = 0x01, // udp over ipv4 |
60 | PROT_UDPv4 = 0x01, // udp over ipv4 |
48 | PROT_IPv4 = 0x02, // generic ip protocol |
61 | PROT_IPv4 = 0x02, // generic ip protocol |
49 | PROT_TCPv4 = 0x04, // tcp over ipv4 (server) |
62 | PROT_TCPv4 = 0x04, // tcp over ipv4 (server) |
50 | PROT_ICMPv4 = 0x08, // icmp over ipv4 |
63 | PROT_ICMPv4 = 0x08, // icmp over ipv4 |
51 | PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server) |
64 | PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server) |
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65 | PROT_ALL = 0x1f |
52 | }; |
66 | }; |
53 | |
67 | |
54 | #define PROT_RELIABLE (PROT_TCPv4 | PROT_DNSv4) |
68 | #define PROT_RELIABLE (PROT_TCPv4 | PROT_DNSv4) |
55 | #define PROT_SLOW PROT_DNSv4 |
69 | #define PROT_SLOW PROT_DNSv4 |
56 | |
70 | |
… | |
… | |
79 | int max_queue; // maixmum send queue length |
93 | int max_queue; // maixmum send queue length |
80 | |
94 | |
81 | enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; |
95 | enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; |
82 | bool compress; |
96 | bool compress; |
83 | bool inherit_tos; // inherit TOS in packets send to this destination |
97 | bool inherit_tos; // inherit TOS in packets send to this destination |
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98 | bool low_power; // node is a low-power node (reduce cpu usage, wakeups and assume higher latency) |
84 | |
99 | |
85 | vector<const char *> allow_direct; |
100 | vector<const char *> allow_direct; |
86 | vector<const char *> deny_direct; |
101 | vector<const char *> deny_direct; |
87 | |
102 | |
88 | u32 routerprio; |
103 | u32 routerprio; |
89 | |
104 | |
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105 | u8 connectable_protocols () const |
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106 | { |
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107 | u8 protocols = this->protocols; |
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108 | |
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109 | // mask out endpoints we can't connect to |
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110 | if (!udp_port) protocols &= ~PROT_UDPv4; |
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111 | if (!tcp_port) protocols &= ~PROT_TCPv4; |
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112 | if (!dns_port) protocols &= ~PROT_DNSv4; |
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113 | |
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114 | return protocols; |
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115 | } |
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116 | |
90 | bool can_direct (struct conf_node *other); |
117 | bool may_direct (struct conf_node *other); |
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118 | void finalise (); |
91 | |
119 | |
92 | void print (); |
120 | void print (); |
93 | |
121 | |
94 | ~conf_node (); |
122 | ~conf_node (); |
95 | }; |
123 | }; |
… | |
… | |
98 | { |
126 | { |
99 | typedef vector<conf_node *> node_vector; |
127 | typedef vector<conf_node *> node_vector; |
100 | node_vector nodes; |
128 | node_vector nodes; |
101 | conf_node default_node; |
129 | conf_node default_node; |
102 | conf_node *thisnode; |
130 | conf_node *thisnode; |
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131 | char serial[SERIAL_SIZE]; |
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132 | char *seed_dev; // the randomd evice to use for seeding |
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133 | double reseed; // the interval between additional seeds |
103 | int mtu; // the mtu used for outgoing tunnel packets |
134 | int mtu; // the mtu used for outgoing tunnel packets |
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135 | int nfmark; // the SO_MARK // netfilter mark // fwmark |
104 | double rekey; // rekey interval |
136 | double rekey; // rekey interval |
105 | double keepalive; // keepalive probes interval |
137 | double keepalive; // keepalive probes interval |
106 | char *ifname; // the interface name (tap0 ...) |
138 | char *ifname; // the interface name (tap0 ...) |
107 | bool ifpersist; // should the interface be persistent |
139 | bool ifpersist; // should the interface be persistent |
108 | char *prikeyfile; |
140 | char *prikeyfile; |
109 | RSA *rsa_key; // our private rsa key |
141 | RSA *rsa_key; // our private rsa key |
110 | loglevel llevel; |
142 | loglevel llevel; |
111 | u8 ip_proto; // the ip protocol to use |
143 | u8 ip_proto; // the ip protocol to use |
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144 | uid_t change_uid; // the uid of the user to switch to, or 0 |
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145 | gid_t change_gid; // the gid of the user to switch to, or 0 |
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146 | char *change_root;// the path to chroot to, "/" == anonymous |
112 | #if ENABLE_ICMP |
147 | #if ENABLE_ICMP |
113 | u8 icmp_type; // the icmp type for the icmp-protocol |
148 | u8 icmp_type; // the icmp type for the icmp-protocol |
114 | #endif |
149 | #endif |
115 | |
150 | |
116 | char *script_if_up; |
151 | char *script_if_up; |
117 | char *script_node_up; |
152 | char *script_node_up; |
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153 | char *script_node_change; |
118 | char *script_node_down; |
154 | char *script_node_down; |
119 | char *pidfilename; |
155 | char *pidfilename; |
120 | |
156 | |
121 | #if ENABLE_HTTP_PROXY |
157 | #if ENABLE_HTTP_PROXY |
122 | char *proxy_auth; // login:password |
158 | char *proxy_auth; // login:password |
… | |
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124 | u16 proxy_port; // the proxy port, e.g. 3128 |
160 | u16 proxy_port; // the proxy port, e.g. 3128 |
125 | #endif |
161 | #endif |
126 | |
162 | |
127 | #if ENABLE_DNS |
163 | #if ENABLE_DNS |
128 | char *dns_forw_host; |
164 | char *dns_forw_host; |
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165 | bool dns_case_preserving; |
129 | u16 dns_forw_port; |
166 | u16 dns_forw_port; |
130 | float dns_timeout_factor; |
167 | float dns_timeout_factor; |
131 | float dns_send_interval; |
168 | float dns_send_interval; |
132 | float dns_overlap_factor; |
169 | float dns_overlap_factor; |
133 | int dns_max_outstanding; |
170 | int dns_max_outstanding; |
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135 | |
172 | |
136 | void init (); |
173 | void init (); |
137 | void cleanup (); |
174 | void cleanup (); |
138 | void clear (); |
175 | void clear (); |
139 | |
176 | |
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177 | conf_node *find_node (const char *name); |
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178 | |
140 | // create a filename from string, replacing %s by the nodename |
179 | // create a filename from string, replacing %s by the nodename |
141 | // and using relative paths under confbase. |
180 | // and using relative paths under confbase. |
142 | char *config_filename (const char *name, const char *dflt); |
181 | char *config_filename (const char *name, const char *dflt = 0); |
143 | |
182 | |
144 | void print (); |
183 | void print (); |
145 | |
184 | |
146 | configuration (); |
185 | configuration (); |
147 | ~configuration (); |
186 | ~configuration (); |
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… | |
157 | int argc; |
196 | int argc; |
158 | char **argv; |
197 | char **argv; |
159 | |
198 | |
160 | configuration_parser (configuration &conf, bool need_keys, int argc, char **argv); |
199 | configuration_parser (configuration &conf, bool need_keys, int argc, char **argv); |
161 | |
200 | |
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201 | void parse_file (const char *fname); |
162 | const char *parse_line (char *line); |
202 | const char *parse_line (char *line); |
163 | void parse_argv (); |
203 | void parse_argv (); |
164 | }; |
204 | }; |
165 | |
205 | |
166 | extern struct configuration conf; |
206 | extern struct configuration conf; |