/*
conf.c -- configuration code
Copyright (C) 1998 Emphyrio,
- Copyright (C) 1998,1999,2000 Ivo Timmermans <zarq@iname.com>
+ Copyright (C) 1998,1999,2000 Ivo Timmermans <itimmermans@bigfoot.com>
+ 2000 Guus Sliepen <guus@sliepen.warande.net>
+ 2000 Cris van Pelt <tribbel@arise.dhs.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ $Id: conf.c,v 1.9.4.11 2000/10/11 13:42:52 guus Exp $
*/
+
#include "config.h"
#include <ctype.h>
#include "conf.h"
#include "netutl.h" /* for strtoip */
+#include <utils.h> /* for cp */
+
+#include "system.h"
config_t *config;
int debug_lvl = 0;
int timeout = 0; /* seconds before timeout */
+char *configfilename = NULL;
-typedef struct internal_config_t {
- char *name;
- enum which_t which;
- int argtype;
-} internal_config_t;
+/* Will be set if HUP signal is received. It will be processed when it is safe. */
+int sighup = 0;
/*
These are all the possible configurable values
*/
static internal_config_t hazahaza[] = {
- { "AllowConnect", allowconnect, TYPE_BOOL }, /* Is not used anywhere. Remove? */
- { "ConnectTo", upstreamip, TYPE_IP },
- { "ConnectPort", upstreamport, TYPE_INT },
- { "ListenPort", listenport, TYPE_INT },
- { "MyOwnVPNIP", myvpnip, TYPE_IP },
- { "MyVirtualIP", myvpnip, TYPE_IP }, /* an alias */
- { "Passphrases", passphrasesdir, TYPE_NAME },
+/* Main configuration file keywords */
+ { "Name", tincname, TYPE_NAME },
+ { "ConnectTo", connectto, TYPE_NAME },
{ "PingTimeout", pingtimeout, TYPE_INT },
{ "TapDevice", tapdevice, TYPE_NAME },
+ { "PrivateKey", privatekey, TYPE_NAME },
{ "KeyExpire", keyexpire, TYPE_INT },
+ { "Hostnames", resolve_dns, TYPE_BOOL },
+ { "Interface", interface, TYPE_NAME },
+ { "InterfaceIP", interfaceip, TYPE_IP },
+/* Host configuration file keywords */
+ { "Address", address, TYPE_NAME },
+ { "Port", port, TYPE_INT },
+ { "PublicKey", publickey, TYPE_NAME },
+ { "Subnet", subnet, TYPE_NAME },
+ { "RestrictHosts", restricthosts, TYPE_BOOL },
+ { "RestrictSubnets", restrictsubnets, TYPE_BOOL },
+ { "RestrictAddress", restrictaddress, TYPE_BOOL },
+ { "RestrictPort", restrictport, TYPE_BOOL },
+ { "IndirectData", indirectdata, TYPE_BOOL },
+ { "TCPonly", tcponly, TYPE_BOOL },
{ NULL, 0, 0 }
};
config_t *
add_config_val(config_t **cfg, int argtype, char *val)
{
- config_t *p;
+ config_t *p, *r;
char *q;
-
+cp
p = (config_t*)xmalloc(sizeof(*p));
p->data.val = 0;
p->data.val = 0;
}
+ p->argtype = argtype;
+
if(p->data.val)
{
- p->next = *cfg;
- *cfg = p;
+ if(*cfg)
+ {
+ r = *cfg;
+ while(r->next)
+ r = r->next;
+ r->next = p;
+ }
+ else
+ *cfg = p;
+ p->next = NULL;
return p;
}
free(p);
+cp
return NULL;
}
/*
- Get variable from a section in a configfile. returns -1 on failure.
+ Parse a configuration file and put the results in the configuration tree
+ starting at *base.
*/
-int
-readconfig(const char *fname, FILE *fp)
+int read_config_file(config_t **base, const char *fname)
{
- char line[81];
+ int err;
+ FILE *fp;
+ char line[MAXBUFSIZE]; /* There really should not be any line longer than this... */
char *p, *q;
- int i, lineno = 0;
+ int i, err = -1, lineno = 0;
config_t *cfg;
+cp
+ if((fp = fopen (fname, "r")) == NULL)
+ {
+ return -1;
+ }
for(;;)
{
- if(fgets(line, 80, fp) == NULL)
- return 0;
+ if(fgets(line, MAXBUFSIZE, fp) == NULL)
+ {
+ err = 0;
+ break;
+ }
+
lineno++;
+ if(!index(line, '\n'))
+ {
+ syslog(LOG_ERR, _("Line %d too long while reading config file %s"), lineno, fname);
+ break;
+ }
+
if((p = strtok(line, "\t\n\r =")) == NULL)
continue; /* no tokens on this line */
if(!hazahaza[i].name)
{
- fprintf(stderr, "%s: %d: Invalid variable name `%s'.\n",
- fname, lineno, p);
- return -1;
+ syslog(LOG_ERR, _("Invalid variable name on line %d while reading config file %s"),
+ lineno, fname);
+ break;
}
if(((q = strtok(NULL, "\t\n\r =")) == NULL) || q[0] == '#')
{
- fprintf(stderr, "%s: %d: No value given for `%s'.\n",
- fname, lineno, hazahaza[i].name);
- return -1;
+ fprintf(stderr, _("No value for variable on line %d while reading config file %s"),
+ lineno, fname);
+ break;
}
- cfg = add_config_val(&config, hazahaza[i].argtype, q);
+ cfg = add_config_val(base, hazahaza[i].argtype, q);
if(cfg == NULL)
{
- fprintf(stderr, "%s: %d: Invalid value `%s' for variable `%s'.\n",
- fname, lineno, q, hazahaza[i].name);
- return -1;
+ fprintf(stderr, _("Invalid value for variable on line %d while reading config file %s"),
+ lineno, fname);
+ break;
}
cfg->which = hazahaza[i].which;
if(!config)
config = cfg;
}
-}
-
-/*
- wrapper function for readconfig
-*/
-int
-read_config_file(const char *fname)
-{
- FILE *fp;
-
- if((fp = fopen (fname, "r")) == NULL)
- {
- fprintf(stderr, "Could not open %s: %s\n", fname, sys_errlist[errno]);
- return 1;
- }
-
- if(readconfig(fname, fp))
- return -1;
fclose (fp);
-
- return 0;
+cp
+ return err;
}
/*
Look up the value of the config option type
*/
-const config_t *
-get_config_val(which_t type)
+const config_t *get_config_val(config_t *p, which_t type)
{
- config_t *p;
-
+cp
for(p = config; p != NULL; p = p->next)
if(p->which == type)
return p;
+cp
+ /* Not found */
+ return NULL;
+}
+/*
+ Support for multiple config lines.
+ Index is used to get a specific value, 0 being the first, 1 the second etc.
+*/
+const config_t *get_next_config_val(config_t *p, which_t type, int index)
+{
+cp
+ for(p = config; p != NULL; p = p->next)
+ if(p->which == type)
+ if(--index < 0)
+ return p;
+cp
/* Not found */
return NULL;
}
+
+/*
+ Remove the complete configuration tree.
+*/
+void clear_config(config_t **base)
+{
+ config_t *p, *next;
+cp
+ for(p = *base; p != NULL; p = next)
+ {
+ next = p->next;
+ if(p->data.ptr && (p->argtype == TYPE_NAME))
+ {
+ free(p->data.ptr);
+ }
+ free(p);
+ }
+ *base = NULL;
+cp
+}
projects / tinc / blobdiff