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Comparing gvpe/src/conf.h (file contents):
Revision 1.9 by pcg, Fri Mar 28 16:14:40 2003 UTC vs.
Revision 1.46 by root, Fri Oct 11 07:56:07 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 8 bytes...) 44#define DEFAULT_KEEPALIVE 60 // one keepalive/minute (it's just 8 bytes...)
39#define DEFAULT_UDPPORT 655 // same as tinc, conflicts would be rare 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
41enum { 56enum
57{
42 PROT_UDPv4 = 1, // udp over ipv4 58 PROT_UDPv4 = 0x01, // udp over ipv4
43 PROT_IPv4 = 2, // generic ip protocol 59 PROT_IPv4 = 0x02, // generic ip protocol
44 PROT_TCPv4 = 4, // tcp over ipv4 (NYI) 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
45}; 64};
46 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
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; // 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
96 bool low_power; // node is a low-power node (reduce cpu usage, wakeups and assume higher latency)
97
98 vector<const char *> allow_direct;
99 vector<const char *> deny_direct;
61 100
62 u32 routerprio; 101 u32 routerprio;
63 102
103 u8 connectable_protocols () const
104 {
105 u8 protocols = this->protocols;
106
107 // mask out endpoints we can't connect to
108 if (!udp_port) protocols &= ~PROT_UDPv4;
109 if (!tcp_port) protocols &= ~PROT_TCPv4;
110 if (!dns_port) protocols &= ~PROT_DNSv4;
111
112 return protocols;
113 }
114
115 bool may_direct (struct conf_node *other);
116 void finalise ();
117
64 void print (); 118 void print ();
65 119
66 ~conf_node () 120 ~conf_node ();
67 {
68 if (rsa_key)
69 RSA_free (rsa_key);
70
71 free (nodename);
72 free (hostname);
73 }
74}; 121};
75 122
76struct configuration { 123struct configuration
124{
77 typedef vector<conf_node *> node_vector; 125 typedef vector<conf_node *> node_vector;
78 node_vector nodes; 126 node_vector nodes;
79 conf_node default_node; 127 conf_node default_node;
80 conf_node *thisnode; 128 conf_node *thisnode;
129 char serial[SERIAL_SIZE];
130 char *seed_dev; // the randomd evice to use for seeding
131 double reseed; // the interval between additional seeds
81 int mtu; // the mtu used for outgoing tunnel packets 132 int mtu; // the mtu used for outgoing tunnel packets
133 int nfmark; // the SO_MARK // netfilter mark // fwmark
82 double rekey; // rekey interval 134 double rekey; // rekey interval
83 double keepalive; // keepalive probes interval 135 double keepalive; // keepalive probes interval
84 char *ifname; // the interface name (tap0 ...) 136 char *ifname; // the interface name (tap0 ...)
85 bool ifpersist; // should the interface be persistent 137 bool ifpersist; // should the interface be persistent
86 char *prikeyfile; 138 char *prikeyfile;
87 RSA *rsa_key; // our private rsa key 139 RSA *rsa_key; // our private rsa key
88 loglevel llevel; 140 loglevel llevel;
89 u8 ip_proto; // the ip protocol to use 141 u8 ip_proto; // the ip protocol to use
142 uid_t change_uid; // the uid of the user to switch to, or 0
143 gid_t change_gid; // the gid of the user to switch to, or 0
144 char *change_root;// the path to chroot to, "/" == anonymous
145#if ENABLE_ICMP
146 u8 icmp_type; // the icmp type for the icmp-protocol
147#endif
90 148
91 char *script_if_up; 149 char *script_if_up;
92 char *script_node_up; 150 char *script_node_up;
151 char *script_node_change;
93 char *script_node_down; 152 char *script_node_down;
153 char *pidfilename;
154
155#if ENABLE_HTTP_PROXY
156 char *proxy_auth; // login:password
157 char *proxy_host; // the proxy hostname, e.g. proxy1.example.net
158 u16 proxy_port; // the proxy port, e.g. 3128
159#endif
160
161#if ENABLE_DNS
162 char *dns_forw_host;
163 bool dns_case_preserving;
164 u16 dns_forw_port;
165 float dns_timeout_factor;
166 float dns_send_interval;
167 float dns_overlap_factor;
168 int dns_max_outstanding;
169#endif
94 170
95 void init (); 171 void init ();
96 void cleanup (); 172 void cleanup ();
97 void read_config (bool need_keys);
98 void clear_config (); 173 void clear ();
174
175 conf_node *find_node (const char *name);
99 176
100 // create a filename from string, replacing %s by the nodename 177 // create a filename from string, replacing %s by the nodename
101 // and using relative paths under confbase. 178 // and using relative paths under confbase.
102 char *config_filename (const char *name, const char *dflt); 179 char *config_filename (const char *name, const char *dflt = 0);
103 180
104 void print (); 181 void print ();
105 182
106 configuration (); 183 configuration ();
107 ~configuration (); 184 ~configuration ();
108}; 185};
109 186
187struct configuration_parser
188{
189 configuration &conf;
190
191 bool need_keys;
192 conf_node *node;
193
194 int argc;
195 char **argv;
196
197 configuration_parser (configuration &conf, bool need_keys, int argc, char **argv);
198
199 void parse_file (const char *fname);
200 const char *parse_line (char *line);
201 void parse_argv ();
202};
203
110extern struct configuration conf; 204extern struct configuration conf;
111 205
112#define THISNODE ::conf.thisnode 206#define THISNODE ::conf.thisnode
113 207
114#endif 208#endif

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