2 conf.c -- configuration code
3 Copyright (C) 1998 Emphyrio,
4 Copyright (C) 1998,1999,2000 Ivo Timmermans <itimmermans@bigfoot.com>
5 2000 Guus Sliepen <guus@sliepen.warande.net>
6 2000 Cris van Pelt <tribbel@arise.dhs.org>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 $Id: conf.c,v 1.9.4.11 2000/10/11 13:42:52 guus Exp $
38 #include "netutl.h" /* for strtoip */
39 #include <utils.h> /* for cp */
45 int timeout = 0; /* seconds before timeout */
46 char *configfilename = NULL;
48 /* Will be set if HUP signal is received. It will be processed when it is safe. */
52 These are all the possible configurable values
54 static internal_config_t hazahaza[] = {
55 /* Main configuration file keywords */
56 { "Name", tincname, TYPE_NAME },
57 { "ConnectTo", connectto, TYPE_NAME },
58 { "PingTimeout", pingtimeout, TYPE_INT },
59 { "TapDevice", tapdevice, TYPE_NAME },
60 { "PrivateKey", privatekey, TYPE_NAME },
61 { "KeyExpire", keyexpire, TYPE_INT },
62 { "Hostnames", resolve_dns, TYPE_BOOL },
63 { "Interface", interface, TYPE_NAME },
64 { "InterfaceIP", interfaceip, TYPE_IP },
65 /* Host configuration file keywords */
66 { "Address", address, TYPE_NAME },
67 { "Port", port, TYPE_INT },
68 { "PublicKey", publickey, TYPE_NAME },
69 { "Subnet", subnet, TYPE_NAME },
70 { "RestrictHosts", restricthosts, TYPE_BOOL },
71 { "RestrictSubnets", restrictsubnets, TYPE_BOOL },
72 { "RestrictAddress", restrictaddress, TYPE_BOOL },
73 { "RestrictPort", restrictport, TYPE_BOOL },
74 { "IndirectData", indirectdata, TYPE_BOOL },
75 { "TCPonly", tcponly, TYPE_BOOL },
80 Add given value to the list of configs cfg
83 add_config_val(config_t **cfg, int argtype, char *val)
88 p = (config_t*)xmalloc(sizeof(*p));
94 p->data.val = strtol(val, &q, 0);
99 p->data.ptr = xmalloc(strlen(val) + 1);
100 strcpy(p->data.ptr, val);
103 p->data.ip = strtoip(val);
106 if(!strcasecmp("yes", val))
107 p->data.val = stupid_true;
108 else if(!strcasecmp("no", val))
109 p->data.val = stupid_false;
114 p->argtype = argtype;
137 Parse a configuration file and put the results in the configuration tree
140 int read_config_file(config_t **base, const char *fname)
144 char line[MAXBUFSIZE]; /* There really should not be any line longer than this... */
146 int i, err = -1, lineno = 0;
149 if((fp = fopen (fname, "r")) == NULL)
156 if(fgets(line, MAXBUFSIZE, fp) == NULL)
164 if(!index(line, '\n'))
166 syslog(LOG_ERR, _("Line %d too long while reading config file %s"), lineno, fname);
170 if((p = strtok(line, "\t\n\r =")) == NULL)
171 continue; /* no tokens on this line */
174 continue; /* comment: ignore */
176 for(i = 0; hazahaza[i].name != NULL; i++)
177 if(!strcasecmp(hazahaza[i].name, p))
180 if(!hazahaza[i].name)
182 syslog(LOG_ERR, _("Invalid variable name on line %d while reading config file %s"),
187 if(((q = strtok(NULL, "\t\n\r =")) == NULL) || q[0] == '#')
189 fprintf(stderr, _("No value for variable on line %d while reading config file %s"),
194 cfg = add_config_val(base, hazahaza[i].argtype, q);
197 fprintf(stderr, _("Invalid value for variable on line %d while reading config file %s"),
202 cfg->which = hazahaza[i].which;
213 Look up the value of the config option type
215 const config_t *get_config_val(config_t *p, which_t type)
218 for(p = config; p != NULL; p = p->next)
227 Support for multiple config lines.
228 Index is used to get a specific value, 0 being the first, 1 the second etc.
230 const config_t *get_next_config_val(config_t *p, which_t type, int index)
233 for(p = config; p != NULL; p = p->next)
243 Remove the complete configuration tree.
245 void clear_config(config_t **base)
249 for(p = *base; p != NULL; p = next)
252 if(p->data.ptr && (p->argtype == TYPE_NAME))