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Comparing gvpe/src/conf.h (file contents):
Revision 1.2 by pcg, Thu Mar 6 18:43:07 2003 UTC vs.
Revision 1.45 by root, Thu Jul 18 17:35:10 2013 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__
21
22#include <sys/types.h>
23#include <sys/socket.h>
24#include <netdb.h>
25
26#ifdef HAVE_OPENSSL_RSA_H
27# include <openssl/rsa.h>
28#else
29# include <rsa.h>
30#endif
31 34
32#include <vector> 35#include <vector>
36
37#include <openssl/rsa.h>
33 38
34#include "slog.h" 39#include "slog.h"
35#include "global.h" 40#include "global.h"
36 41
37#define DEFAULT_REKEY 3600 42#define DEFAULT_REKEY 3607 // interval between rekeys
43#define DEFAULT_RESEED 3613 // interval between rng reseeds
38#define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 48 bytes...) 44#define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...)
39#define DEFAULT_PORT 655 // same as tinc, conflicts would be rara 45#define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare
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
40 55
56enum
57{
58 PROT_UDPv4 = 0x01, // udp over ipv4
59 PROT_IPv4 = 0x02, // generic ip protocol
60 PROT_TCPv4 = 0x04, // tcp over ipv4 (server)
61 PROT_ICMPv4 = 0x08, // icmp over ipv4
62 PROT_DNSv4 = 0x10, // dns tunnel ipv4 (server)
63 PROT_ALL = 0x1f
64};
65
66#define PROT_RELIABLE (PROT_TCPv4 | PROT_DNSv4)
67#define PROT_SLOW PROT_DNSv4
68
69// select the "best" protocol of the available ones
70u8 best_protocol (u8 protset);
71const char *strprotocol (u8 protocol);
72
41struct conf_node { 73struct conf_node
74{
42 int id; // the id of this node, a 12-bit-number 75 int id; // the id of this node, a 12-bit-number
43 76
44 RSA *rsa_key; // his public key 77 RSA *rsa_key; // his public key
45 char *nodename; // nodename, an internal nickname. 78 char *nodename; // nodename, an internal nickname.
46
47 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;
86
87 u8 protocols; // protocols this host can send & receive
48 u16 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
49 92
50 enum { C_ONDEMAND, C_NEVER, C_ALWAYS } connectmode; 93 enum connectmode { C_ONDEMAND, C_NEVER, C_ALWAYS, C_DISABLED } connectmode;
51 bool compress; 94 bool compress;
95 bool inherit_tos; // inherit TOS in packets send to this destination
96
97 vector<const char *> allow_direct;
98 vector<const char *> deny_direct;
52 99
53 u32 routerprio; 100 u32 routerprio;
54 101
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
55 void print (); 117 void print ();
56 118
57 conf_node()
58 {
59 memset (this, 0, sizeof *this);
60 }
61
62 ~conf_node () 119 ~conf_node ();
63 {
64 if (rsa_key)
65 RSA_free (rsa_key);
66
67 free (nodename);
68 free (hostname);
69 }
70}; 120};
71 121
72struct configuration { 122struct configuration
123{
73 typedef vector<conf_node *> node_vector; 124 typedef vector<conf_node *> node_vector;
74 node_vector nodes; 125 node_vector nodes;
75 conf_node default_node; 126 conf_node default_node;
76 conf_node *thisnode; 127 conf_node *thisnode;
128 char serial[SERIAL_SIZE];
129 char *seed_dev; // the randomd evice to use for seeding
130 double reseed; // the interval between additional seeds
77 int mtu; // the mtu used for outgoing tunnel packets 131 int mtu; // the mtu used for outgoing tunnel packets
132 int nfmark; // the SO_MARK // netfilter mark // fwmark
78 int rekey; // rekey interval 133 double rekey; // rekey interval
79 int keepalive; // keepalive probes interval 134 double keepalive; // keepalive probes interval
80 char *ifname; // the interface name (tap0 ...) 135 char *ifname; // the interface name (tap0 ...)
81 bool ifpersist; // should the interface be persistent 136 bool ifpersist; // should the interface be persistent
82 char *prikeyfile; 137 char *prikeyfile;
138 RSA *rsa_key; // our private rsa key
83 loglevel llevel; 139 loglevel llevel;
84 RSA *rsa_key; // our private rsa key 140 u8 ip_proto; // the ip protocol to use
141 uid_t change_uid; // the uid of the user to switch to, or 0
142 gid_t change_gid; // the gid of the user to switch to, or 0
143 char *change_root;// the path to chroot to, "/" == anonymous
144#if ENABLE_ICMP
145 u8 icmp_type; // the icmp type for the icmp-protocol
146#endif
85 147
86 char *script_if_up; 148 char *script_if_up;
87 char *script_node_up; 149 char *script_node_up;
150 char *script_node_change;
88 char *script_node_down; 151 char *script_node_down;
152 char *pidfilename;
153
154#if ENABLE_HTTP_PROXY
155 char *proxy_auth; // login:password
156 char *proxy_host; // the proxy hostname, e.g. proxy1.example.net
157 u16 proxy_port; // the proxy port, e.g. 3128
158#endif
159
160#if ENABLE_DNS
161 char *dns_forw_host;
162 bool dns_case_preserving;
163 u16 dns_forw_port;
164 float dns_timeout_factor;
165 float dns_send_interval;
166 float dns_overlap_factor;
167 int dns_max_outstanding;
168#endif
89 169
90 void init (); 170 void init ();
91 void cleanup (); 171 void cleanup ();
92 void read_config (bool need_keys);
93 void clear_config (); 172 void clear ();
173
174 conf_node *find_node (const char *name);
94 175
95 // create a filename from string, replacing %s by the nodename 176 // create a filename from string, replacing %s by the nodename
96 // and using relative paths under confbase. 177 // and using relative paths under confbase.
97 char *config_filename (const char *name, const char *dflt); 178 char *config_filename (const char *name, const char *dflt = 0);
98 179
99 void print (); 180 void print ();
100 181
101 configuration (); 182 configuration ();
102 ~configuration (); 183 ~configuration ();
103}; 184};
104 185
186struct configuration_parser
187{
188 configuration &conf;
189
190 bool need_keys;
191 conf_node *node;
192
193 int argc;
194 char **argv;
195
196 configuration_parser (configuration &conf, bool need_keys, int argc, char **argv);
197
198 void parse_file (const char *fname);
199 const char *parse_line (char *line);
200 void parse_argv ();
201};
202
105extern struct configuration conf; 203extern struct configuration conf;
106 204
107#define THISNODE ::conf.thisnode 205#define THISNODE ::conf.thisnode
108 206
109#endif 207#endif

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