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/* identity representation, as in IKE ID Payloads (RFC 2407 DOI 4.6.2.1)
* Copyright (C) 1999-2001 D. Hugh Redelmeier
*
* 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 the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include <errno.h>
#include <unistd.h>
#ifndef HOST_NAME_MAX /* POSIX 1003.1-2001 says <unistd.h> defines this */
# define HOST_NAME_MAX 255 /* upper bound, according to SUSv2 */
#endif
#include <utils/identification.h>
#include <freeswan.h>
#include "myid.h"
#include "constants.h"
#include "defs.h"
#include "log.h"
#include "connections.h"
#include "packet.h"
#include "whack.h"
enum myid_state myid_state = MYID_UNKNOWN;
identification_t *myids[MYID_SPECIFIED+1]; /* %myid */
/**
* Fills in myid from environment variable IPSECmyid or defaultrouteaddr
*/
void init_myid(void)
{
myid_state = MYID_UNKNOWN;
{
enum myid_state s;
for (s = MYID_UNKNOWN; s <= MYID_SPECIFIED; s++)
{
myids[s] = identification_create_from_string("%any");
}
}
set_myid(MYID_SPECIFIED, getenv("IPSECmyid"));
set_myid(MYID_IP, getenv("defaultrouteaddr"));
set_myFQDN();
}
/**
* Free myid module
*/
void free_myid(void)
{
enum myid_state s;
for (s = MYID_UNKNOWN; s <= MYID_SPECIFIED; s++)
{
DESTROY_IF(myids[s]);
}
}
void set_myid(enum myid_state s, char *idstr)
{
if (idstr)
{
myids[s]->destroy(myids[s]);
myids[s] = identification_create_from_string(idstr);
if (s == MYID_SPECIFIED)
{
myid_state = MYID_SPECIFIED;
}
}
}
void set_myFQDN(void)
{
char FQDN[HOST_NAME_MAX + 1];
int r = gethostname(FQDN, sizeof(FQDN));
size_t len;
if (r != 0)
{
log_errno((e, "gethostname() failed in set_myFQDN"));
}
else
{
FQDN[sizeof(FQDN) - 1] = '\0'; /* insurance */
len = strlen(FQDN);
if (len > 0 && FQDN[len-1] == '.')
{
/* nuke trailing . */
FQDN[len-1] = '\0';
}
if (!strcaseeq(FQDN, "localhost.localdomain"))
{
myids[MYID_HOSTNAME]->destroy(myids[MYID_HOSTNAME]);
myids[MYID_HOSTNAME] = identification_create_from_string(FQDN);
}
}
}
void show_myid_status(void)
{
whack_log(RC_COMMENT, "%%myid = '%Y'", myids[myid_state]);
}
/*
* Local Variables:
* c-basic-offset:4
* c-style: pluto
* End:
*/
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