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/*
gssd.c
Copyright (c) 2000 The Regents of the University of Michigan.
All rights reserved.
Copyright (c) 2000 Dug Song <dugsong@UMICH.EDU>.
Copyright (c) 2002 Andy Adamson <andros@UMICH.EDU>.
Copyright (c) 2002 Marius Aamodt Eriksen <marius@UMICH.EDU>.
All rights reserved, all wrongs reversed.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /* HAVE_CONFIG_H */
#include <sys/param.h>
#include <sys/socket.h>
#include <rpc/rpc.h>
#include <unistd.h>
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include "gssd.h"
#include "err_util.h"
#include "gss_util.h"
#include "krb5_util.h"
char pipefs_dir[PATH_MAX] = GSSD_PIPEFS_DIR;
char keytabfile[PATH_MAX] = GSSD_DEFAULT_KEYTAB_FILE;
char ccachedir[PATH_MAX] = GSSD_DEFAULT_CRED_DIR ":" GSSD_USER_CRED_DIR;
char *ccachesearch[GSSD_MAX_CCACHE_SEARCH + 1];
int use_memcache = 0;
int root_uses_machine_creds = 1;
unsigned int context_timeout = 0;
char *preferred_realm = NULL;
void
sig_die(int signal)
{
/* destroy krb5 machine creds */
if (root_uses_machine_creds)
gssd_destroy_krb5_machine_creds();
printerr(1, "exiting on signal %d\n", signal);
exit(0);
}
void
sig_hup(int signal)
{
/* don't exit on SIGHUP */
printerr(1, "Received SIGHUP(%d)... Ignoring.\n", signal);
return;
}
static void
usage(char *progname)
{
fprintf(stderr, "usage: %s [-f] [-l] [-M] [-n] [-v] [-r] [-p pipefsdir] [-k keytab] [-d ccachedir] [-t timeout] [-R preferred realm]\n",
progname);
exit(1);
}
int
main(int argc, char *argv[])
{
int fg = 0;
int verbosity = 0;
int rpc_verbosity = 0;
int opt;
int i;
extern char *optarg;
char *progname;
memset(ccachesearch, 0, sizeof(ccachesearch));
while ((opt = getopt(argc, argv, "fvrlmnMp:k:d:t:R")) != -1) {
switch (opt) {
case 'f':
fg = 1;
break;
case 'm':
/* Accept but ignore this. Now the default. */
break;
case 'M':
use_memcache = 1;
break;
case 'n':
root_uses_machine_creds = 0;
break;
case 'v':
verbosity++;
break;
case 'r':
rpc_verbosity++;
break;
case 'p':
strncpy(pipefs_dir, optarg, sizeof(pipefs_dir));
if (pipefs_dir[sizeof(pipefs_dir)-1] != '\0')
errx(1, "pipefs path name too long");
break;
case 'k':
strncpy(keytabfile, optarg, sizeof(keytabfile));
if (keytabfile[sizeof(keytabfile)-1] != '\0')
errx(1, "keytab path name too long");
break;
case 'd':
strncpy(ccachedir, optarg, sizeof(ccachedir));
if (ccachedir[sizeof(ccachedir)-1] != '\0')
errx(1, "ccachedir path name too long");
break;
case 't':
context_timeout = atoi(optarg);
break;
case 'R':
preferred_realm = strdup(optarg);
break;
case 'l':
#ifdef HAVE_SET_ALLOWABLE_ENCTYPES
limit_to_legacy_enctypes = 1;
#else
errx(1, "Setting encryption type not support by Kerberos libraries.");
#endif
break;
default:
usage(argv[0]);
break;
}
}
i = 0;
ccachesearch[i++] = strtok(ccachedir, ":");
do {
ccachesearch[i++] = strtok(NULL, ":");
} while (ccachesearch[i-1] != NULL && i < GSSD_MAX_CCACHE_SEARCH);
if (preferred_realm == NULL)
gssd_k5_get_default_realm(&preferred_realm);
if ((progname = strrchr(argv[0], '/')))
progname++;
else
progname = argv[0];
initerr(progname, verbosity, fg);
#ifdef HAVE_AUTHGSS_SET_DEBUG_LEVEL
if (verbosity && rpc_verbosity == 0)
rpc_verbosity = verbosity;
authgss_set_debug_level(rpc_verbosity);
#else
if (rpc_verbosity > 0)
printerr(0, "Warning: rpcsec_gss library does not "
"support setting debug level\n");
#endif
if (gssd_check_mechs() != 0)
errx(1, "Problem with gssapi library");
if (!fg && daemon(0, 0) < 0)
errx(1, "fork");
signal(SIGINT, sig_die);
signal(SIGTERM, sig_die);
signal(SIGHUP, sig_hup);
gssd_run();
printerr(0, "gssd_run returned!\n");
abort();
}
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