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Comparing gvpe/src/conf.h (file contents):
Revision 1.20 by pcg, Fri Apr 2 14:42:45 2004 UTC vs.
Revision 1.43 by root, Sat Jul 13 04:10:29 2013 UTC

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
5 This file is part of GVPE.
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
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.
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 3607 // interval between rekeys
43#define DEFAULT_RESEED 3613 // interval between rng reseeds
31#define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...) 44#define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...)
32#define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare 45#define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare
33#define DEFAULT_MTU 1500 // let's ether-net 46#define DEFAULT_MTU 1500 // let's ether-net
47#define DEFAULT_MAX_RETRY 3600 // retry at least this often
48#define DEFAULT_MAX_TTL 60 // packets expire after this many seconds
49#define DEFAULT_MAX_QUEUE 512 // never queue more than this many packets
50
51#define DEFAULT_DNS_TIMEOUT_FACTOR 8.F // initial retry timeout multiple
52#define DEFAULT_DNS_SEND_INTERVAL .01F // minimum send interval
53#define DEFAULT_DNS_OVERLAP_FACTOR .5F // RTT * LATENCY_FACTOR == sending rate
54#define DEFAULT_DNS_MAX_OUTSTANDING 100 // max. number of outstanding requests
34 55
35enum { 56enum
57{
36 PROT_UDPv4 = 0x01, // udp over ipv4 58 PROT_UDPv4 = 0x01, // udp over ipv4
37 PROT_IPv4 = 0x02, // generic ip protocol 59 PROT_IPv4 = 0x02, // generic ip protocol
38 PROT_TCPv4 = 0x04, // tcp over ipv4 60 PROT_TCPv4 = 0x04, // tcp over ipv4 (server)
39 PROT_ICMPv4 = 0x08, // icmp over ipv4 61 PROT_ICMPv4 = 0x08, // icmp over ipv4
40 PROT_DNSv4 = 0x10, // dns tunnel over ipv4 62 PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server)
63 PROT_ALL = 0x1f
41}; 64};
65
66#define PROT_RELIABLE (PROT_TCPv4 | PROT_DNSv4)
67#define PROT_SLOW PROT_DNSv4
42 68
43// select the "best" protocol of the available ones 69// select the "best" protocol of the available ones
44u8 best_protocol (u8 protset); 70u8 best_protocol (u8 protset);
45const char *strprotocol (u8 protocol); 71const char *strprotocol (u8 protocol);
46 72
47struct conf_node { 73struct conf_node
74{
48 int id; // the id of this node, a 12-bit-number 75 int id; // the id of this node, a 12-bit-number
49 76
50 RSA *rsa_key; // his public key 77 RSA *rsa_key; // his public key
51 char *nodename; // nodename, an internal nickname. 78 char *nodename; // nodename, an internal nickname.
52
53 char *hostname; // hostname, if known, or NULL. 79 char *hostname; // hostname, if known, or NULL.
80 char *if_up_data;
81#if ENABLE_DNS
82 char *domain; // dns tunnel domain
83#endif
84 char *dns_hostname;
85 u16 dns_port;
54 86
55 u8 protocols; // protocols this host can send & receive 87 u8 protocols; // protocols this host can send & receive
56 u16 udp_port, tcp_port, dns_port; // the port to bind to 88 u16 udp_port, tcp_port; // the port to bind to
89 int max_retry;
90 double max_ttl; // packets expire after this many seconds
91 int max_queue; // maixmum send queue length
57 92
58 enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode; 93 enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode;
59 bool compress; 94 bool compress;
60 bool inherit_tos; // inherit TOS in packets send to this destination 95 bool inherit_tos; // inherit TOS in packets send to this destination
61 96
97 vector<const char *> allow_direct;
98 vector<const char *> deny_direct;
99
62 u32 routerprio; 100 u32 routerprio;
63 101
102 u8 connectable_protocols () const
103 {
104 u8 protocols = this->protocols;
105
106 // mask out endpoints we can't connect to
107 if (!udp_port) protocols &= ~PROT_UDPv4;
108 if (!tcp_port) protocols &= ~PROT_TCPv4;
109 if (!dns_port) protocols &= ~PROT_DNSv4;
110
111 return protocols;
112 }
113
114 bool may_direct (struct conf_node *other);
115 void finalise ();
116
64 void print (); 117 void print ();
65 118
66 ~conf_node (); 119 ~conf_node ();
67}; 120};
68 121
69struct configuration { 122struct configuration
123{
70 typedef vector<conf_node *> node_vector; 124 typedef vector<conf_node *> node_vector;
71 node_vector nodes; 125 node_vector nodes;
72 conf_node default_node; 126 conf_node default_node;
73 conf_node *thisnode; 127 conf_node *thisnode;
128 char *seed_dev; // the randomd evice to use for seeding
129 double reseed; // the interval between additional seeds
74 int mtu; // the mtu used for outgoing tunnel packets 130 int mtu; // the mtu used for outgoing tunnel packets
131 int nfmark; // the SO_MARK // netfilter mark // fwmark
75 double rekey; // rekey interval 132 double rekey; // rekey interval
76 double keepalive; // keepalive probes interval 133 double keepalive; // keepalive probes interval
77 char *ifname; // the interface name (tap0 ...) 134 char *ifname; // the interface name (tap0 ...)
78 bool ifpersist; // should the interface be persistent 135 bool ifpersist; // should the interface be persistent
79 char *prikeyfile; 136 char *prikeyfile;
80 RSA *rsa_key; // our private rsa key 137 RSA *rsa_key; // our private rsa key
81 loglevel llevel; 138 loglevel llevel;
82 u8 ip_proto; // the ip protocol to use 139 u8 ip_proto; // the ip protocol to use
140 uid_t change_uid; // the uid of the user to switch to, or 0
141 gid_t change_gid; // the gid of the user to switch to, or 0
142 char *change_root;// the path to chroot to, "/" == anonymous
83#if ENABLE_ICMP 143#if ENABLE_ICMP
84 u8 icmp_type; // the icmp type for the icmp-protocol 144 u8 icmp_type; // the icmp type for the icmp-protocol
85#endif 145#endif
86 146
87 char *script_if_up; 147 char *script_if_up;
88 char *script_node_up; 148 char *script_node_up;
149 char *script_node_change;
89 char *script_node_down; 150 char *script_node_down;
90 char *pidfilename; 151 char *pidfilename;
91 152
92#if ENABLE_HTTP_PROXY 153#if ENABLE_HTTP_PROXY
93 char *proxy_auth; // login:password 154 char *proxy_auth; // login:password
94 char *proxy_host; // the proxy hostname, e.g. proxy1.example.net 155 char *proxy_host; // the proxy hostname, e.g. proxy1.example.net
95 u16 proxy_port; // the proxy port, e.g. 3128 156 u16 proxy_port; // the proxy port, e.g. 3128
96#endif 157#endif
97 158
159#if ENABLE_DNS
160 char *dns_forw_host;
161 bool dns_case_preserving;
162 u16 dns_forw_port;
163 float dns_timeout_factor;
164 float dns_send_interval;
165 float dns_overlap_factor;
166 int dns_max_outstanding;
167#endif
168
98 void init (); 169 void init ();
99 void cleanup (); 170 void cleanup ();
100 void read_config (bool need_keys);
101 void clear_config (); 171 void clear ();
102 172
103 // create a filename from string, replacing %s by the nodename 173 // create a filename from string, replacing %s by the nodename
104 // and using relative paths under confbase. 174 // and using relative paths under confbase.
105 char *config_filename (const char *name, const char *dflt); 175 char *config_filename (const char *name, const char *dflt = 0);
106 176
107 void print (); 177 void print ();
108 178
109 configuration (); 179 configuration ();
110 ~configuration (); 180 ~configuration ();
111}; 181};
112 182
183struct configuration_parser
184{
185 configuration &conf;
186
187 bool need_keys;
188 conf_node *node;
189
190 int argc;
191 char **argv;
192
193 configuration_parser (configuration &conf, bool need_keys, int argc, char **argv);
194
195 void parse_file (const char *fname);
196 const char *parse_line (char *line);
197 void parse_argv ();
198};
199
113extern struct configuration conf; 200extern struct configuration conf;
114 201
115#define THISNODE ::conf.thisnode 202#define THISNODE ::conf.thisnode
116 203
117#endif 204#endif

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