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Comparing gvpe/src/conf.h (file contents):
Revision 1.12 by pcg, Mon Apr 7 01:12:56 2003 UTC vs.
Revision 1.38 by root, Sun Mar 6 19:40:28 2011 UTC

1/* 1/*
2 conf.h -- configuration database 2 conf.h -- configuration database
3 Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
3 4
5 This file is part of GVPE.
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 it
5 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
6 the Free Software Foundation; either version 2 of the License, or 9 Free Software Foundation; either version 3 of the License, or (at your
7 (at your option) any later version. 10 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, but
10 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 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 GNU General
12 GNU General Public License for more details. 15 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 along
15 along with this program; if not, write to the Free Software 18 with this program; if not, see <http://www.gnu.org/licenses/>.
16 Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19
20 Additional permission under GNU GPL version 3 section 7
21
22 If you modify this Program, or any covered work, by linking or
23 combining it with the OpenSSL project's OpenSSL library (or a modified
24 version of that library), containing parts covered by the terms of the
25 OpenSSL or SSLeay licenses, the licensors of this Program grant you
26 additional permission to convey the resulting work. Corresponding
27 Source for a non-source form of such a combination shall include the
28 source code for the parts of OpenSSL used as well as that of the
29 covered work.
17*/ 30*/
18 31
19#ifndef VPE_CONF_H__ 32#ifndef GVPE_CONF_H__
20#define VPE_CONF_H__ 33#define GVPE_CONF_H__
34
35#include <vector>
21 36
22#include <openssl/rsa.h> 37#include <openssl/rsa.h>
23
24#include <vector>
25 38
26#include "slog.h" 39#include "slog.h"
27#include "global.h" 40#include "global.h"
28 41
29#define DEFAULT_REKEY 3600 42#define DEFAULT_REKEY 3600
30#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...)
31#define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare 44#define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare
45#define DEFAULT_MTU 1500 // let's ether-net
46#define DEFAULT_MAX_RETRY 3600 // retry at least this often
47#define DEFAULT_MAX_TTL 60 // packets expire after this many seconds
48#define DEFAULT_MAX_QUEUE 512 // never queue more than this many packets
49
50#define DEFAULT_DNS_TIMEOUT_FACTOR 8.F // initial retry timeout multiple
51#define DEFAULT_DNS_SEND_INTERVAL .01F // minimum send interval
52#define DEFAULT_DNS_OVERLAP_FACTOR .5F // RTT * LATENCY_FACTOR == sending rate
53#define DEFAULT_DNS_MAX_OUTSTANDING 100 // max. number of outstanding requests
32 54
33enum { 55enum
56{
34 PROT_UDPv4 = 1, // udp over ipv4 57 PROT_UDPv4 = 0x01, // udp over ipv4
35 PROT_IPv4 = 2, // generic ip protocol 58 PROT_IPv4 = 0x02, // generic ip protocol
36 PROT_TCPv4 = 4, // tcp over ipv4 (NYI) 59 PROT_TCPv4 = 0x04, // tcp over ipv4 (server)
60 PROT_ICMPv4 = 0x08, // icmp over ipv4
61 PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server)
37}; 62};
63
64#define PROT_RELIABLE (PROT_TCPv4 | PROT_DNSv4)
65#define PROT_SLOW PROT_DNSv4
38 66
39// select the "best" protocol of the available ones 67// select the "best" protocol of the available ones
40u8 best_protocol (u8 protset); 68u8 best_protocol (u8 protset);
41const char *strprotocol (u8 protocol); 69const char *strprotocol (u8 protocol);
42 70
43struct conf_node { 71struct conf_node
72{
44 int id; // the id of this node, a 12-bit-number 73 int id; // the id of this node, a 12-bit-number
45 74
46 RSA *rsa_key; // his public key 75 RSA *rsa_key; // his public key
47 char *nodename; // nodename, an internal nickname. 76 char *nodename; // nodename, an internal nickname.
48
49 char *hostname; // hostname, if known, or NULL. 77 char *hostname; // hostname, if known, or NULL.
78 char *if_up_data;
79#if ENABLE_DNS
80 char *domain; // dns tunnel domain
81#endif
82 char *dns_hostname;
83 u16 dns_port;
50 84
51 u8 protocols; // protocols this host can send & receive 85 u8 protocols; // protocols this host can send & receive
52 u16 udp_port, tcp_port; // the port to bind to 86 u16 udp_port, tcp_port; // the port to bind to
87 int max_retry;
88 double max_ttl; // packets expire after this many seconds
89 int max_queue; // maixmum send queue length
53 90
54 enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; 91 enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode;
55 bool compress; 92 bool compress;
56 bool inherit_tos; // inherit TOS in packets send to this destination 93 bool inherit_tos; // inherit TOS in packets send to this destination
57 94
95 vector<const char *> allow_direct;
96 vector<const char *> deny_direct;
97
58 u32 routerprio; 98 u32 routerprio;
99
100 u8 connectable_protocols () const
101 {
102 u8 protocols = this->protocols;
103
104 // mask out endpoints we can't connect to
105 if (!udp_port) protocols &= ~PROT_UDPv4;
106 if (!tcp_port) protocols &= ~PROT_TCPv4;
107 if (!dns_port) protocols &= ~PROT_DNSv4;
108
109 return protocols;
110 }
111
112 bool may_direct (struct conf_node *other);
113 void finalise ();
59 114
60 void print (); 115 void print ();
61 116
62 ~conf_node (); 117 ~conf_node ();
63}; 118};
64 119
65struct configuration { 120struct configuration
121{
66 typedef vector<conf_node *> node_vector; 122 typedef vector<conf_node *> node_vector;
67 node_vector nodes; 123 node_vector nodes;
68 conf_node default_node; 124 conf_node default_node;
69 conf_node *thisnode; 125 conf_node *thisnode;
70 int mtu; // the mtu used for outgoing tunnel packets 126 int mtu; // the mtu used for outgoing tunnel packets
127 int nfmark; // the SO_MARK // netfilter mark // fwmark
71 double rekey; // rekey interval 128 double rekey; // rekey interval
72 double keepalive; // keepalive probes interval 129 double keepalive; // keepalive probes interval
73 char *ifname; // the interface name (tap0 ...) 130 char *ifname; // the interface name (tap0 ...)
74 bool ifpersist; // should the interface be persistent 131 bool ifpersist; // should the interface be persistent
75 char *prikeyfile; 132 char *prikeyfile;
76 RSA *rsa_key; // our private rsa key 133 RSA *rsa_key; // our private rsa key
77 loglevel llevel; 134 loglevel llevel;
78 u8 ip_proto; // the ip protocol to use 135 u8 ip_proto; // the ip protocol to use
136#if ENABLE_ICMP
137 u8 icmp_type; // the icmp type for the icmp-protocol
138#endif
79 139
80 char *script_if_up; 140 char *script_if_up;
81 char *script_node_up; 141 char *script_node_up;
142 char *script_node_change;
82 char *script_node_down; 143 char *script_node_down;
144 char *pidfilename;
83 145
84#if ENABLE_HTTP_PROXY 146#if ENABLE_HTTP_PROXY
85 char *proxy_auth; // login:password 147 char *proxy_auth; // login:password
86 char *proxy_host; // the proxy hostname, e.g. proxy1.example.net 148 char *proxy_host; // the proxy hostname, e.g. proxy1.example.net
87 u16 proxy_port; // the proxy port, e.g. 3128 149 u16 proxy_port; // the proxy port, e.g. 3128
88#endif 150#endif
89 151
152#if ENABLE_DNS
153 char *dns_forw_host;
154 bool dns_case_preserving;
155 u16 dns_forw_port;
156 float dns_timeout_factor;
157 float dns_send_interval;
158 float dns_overlap_factor;
159 int dns_max_outstanding;
160#endif
161
90 void init (); 162 void init ();
91 void cleanup (); 163 void cleanup ();
92 void read_config (bool need_keys);
93 void clear_config (); 164 void clear ();
94 165
95 // create a filename from string, replacing %s by the nodename 166 // create a filename from string, replacing %s by the nodename
96 // and using relative paths under confbase. 167 // and using relative paths under confbase.
97 char *config_filename (const char *name, const char *dflt); 168 char *config_filename (const char *name, const char *dflt = 0);
98 169
99 void print (); 170 void print ();
100 171
101 configuration (); 172 configuration ();
102 ~configuration (); 173 ~configuration ();
174};
175
176struct configuration_parser
177{
178 configuration &conf;
179
180 bool need_keys;
181 conf_node *node;
182
183 int argc;
184 char **argv;
185
186 configuration_parser (configuration &conf, bool need_keys, int argc, char **argv);
187
188 void parse_file (const char *fname);
189 const char *parse_line (char *line);
190 void parse_argv ();
103}; 191};
104 192
105extern struct configuration conf; 193extern struct configuration conf;
106 194
107#define THISNODE ::conf.thisnode 195#define THISNODE ::conf.thisnode

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