[gssapi-openssh.git] / openssh / auth-sia.c

/*
 * Copyright (c) 2002 Chris Adams.  All rights reserved.
 *
 * 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

#include "includes.h"

#ifdef HAVE_OSF_SIA
#include "ssh.h"
#include "auth.h"
#include "auth-sia.h"
#include "log.h"
#include "servconf.h"
#include "canohost.h"

#include <sia.h>
#include <siad.h>
#include <pwd.h>
#include <signal.h>
#include <setjmp.h>
#include <sys/resource.h>
#include <unistd.h>
#include <string.h>

extern ServerOptions options;
extern int saved_argc;
extern char **saved_argv;

extern int errno;

int
auth_sia_password(Authctxt *authctxt, char *pass)
{
	int ret;
	SIAENTITY *ent = NULL;
	const char *host;
	char *user = authctxt->user;

	host = get_canonical_hostname(options.verify_reverse_mapping);

	if (!user || !pass || pass[0] == '\0')
		return(0);

	if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, NULL, 0,
	    NULL) != SIASUCCESS)
		return(0);

	if ((ret = sia_ses_authent(NULL, pass, ent)) != SIASUCCESS) {
		error("Couldn't authenticate %s from %s", user, host);
		if (ret & SIASTOP)
			sia_ses_release(&ent);
		return(0);
	}

	sia_ses_release(&ent);

	return(1);
}

void
session_setup_sia(char *user, char *tty)
{
	struct passwd *pw;
	SIAENTITY *ent = NULL;
	const char *host;

	host = get_canonical_hostname (options.verify_reverse_mapping);

	if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, tty, 0,
	    NULL) != SIASUCCESS) {
		fatal("sia_ses_init failed");
	}

	if ((pw = getpwnam(user)) == NULL) {
		sia_ses_release(&ent);
		fatal("getpwnam: no user: %s", user);
	}
	if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) {
		sia_ses_release(&ent);
		fatal("sia_make_entity_pwd failed");
	}

	ent->authtype = SIA_A_NONE;
	if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS) {
		fatal("Couldn't establish session for %s from %s", user,
		    host);
	}

	if (setpriority(PRIO_PROCESS, 0, 0) == -1) {
		sia_ses_release(&ent);
		fatal("setpriority: %s", strerror (errno));
	}

	if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS) {
		fatal("Couldn't launch session for %s from %s", user, host);
	}
	
	sia_ses_release(&ent);

	if (setreuid(geteuid(), geteuid()) < 0) {
		fatal("setreuid: %s", strerror(errno));
	}
}

#endif /* HAVE_OSF_SIA */
Commit	Line	Data
700318f3	1	/*
	2	* Copyright (c) 2002 Chris Adams. All rights reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	14	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	15	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	16	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	17	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	18	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	19	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	20	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	21	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	22	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	23	*/
	24
3c0ef626	25	#include "includes.h"
	26
	27	#ifdef HAVE_OSF_SIA
	28	#include "ssh.h"
700318f3	29	#include "auth.h"
3c0ef626	30	#include "auth-sia.h"
	31	#include "log.h"
	32	#include "servconf.h"
	33	#include "canohost.h"
	34
	35	#include <sia.h>
	36	#include <siad.h>
	37	#include <pwd.h>
	38	#include <signal.h>
	39	#include <setjmp.h>
	40	#include <sys/resource.h>
	41	#include <unistd.h>
	42	#include <string.h>
	43
	44	extern ServerOptions options;
	45	extern int saved_argc;
	46	extern char **saved_argv;
	47
	48	extern int errno;
	49
	50	int
700318f3	51	auth_sia_password(Authctxt authctxt, char pass)
3c0ef626	52	{
	53	int ret;
	54	SIAENTITY *ent = NULL;
	55	const char *host;
700318f3	56	char *user = authctxt->user;
3c0ef626	57
e9a17296	58	host = get_canonical_hostname(options.verify_reverse_mapping);
3c0ef626	59
700318f3	60	if (!user \|\| !pass \|\| pass[0] == '\0')
3c0ef626	61	return(0);
	62
	63	if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, NULL, 0,
	64	NULL) != SIASUCCESS)
	65	return(0);
	66
	67	if ((ret = sia_ses_authent(NULL, pass, ent)) != SIASUCCESS) {
700318f3	68	error("Couldn't authenticate %s from %s", user, host);
3c0ef626	69	if (ret & SIASTOP)
	70	sia_ses_release(&ent);
	71	return(0);
	72	}
	73
	74	sia_ses_release(&ent);
	75
	76	return(1);
	77	}
	78
	79	void
	80	session_setup_sia(char user, char tty)
	81	{
3c0ef626	82	struct passwd *pw;
	83	SIAENTITY *ent = NULL;
	84	const char *host;
	85
e9a17296	86	host = get_canonical_hostname (options.verify_reverse_mapping);
3c0ef626	87
	88	if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, tty, 0,
	89	NULL) != SIASUCCESS) {
700318f3	90	fatal("sia_ses_init failed");
3c0ef626	91	}
	92
	93	if ((pw = getpwnam(user)) == NULL) {
	94	sia_ses_release(&ent);
700318f3	95	fatal("getpwnam: no user: %s", user);
3c0ef626	96	}
	97	if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) {
	98	sia_ses_release(&ent);
700318f3	99	fatal("sia_make_entity_pwd failed");
3c0ef626	100	}
	101
	102	ent->authtype = SIA_A_NONE;
	103	if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS) {
700318f3	104	fatal("Couldn't establish session for %s from %s", user,
3c0ef626	105	host);
3c0ef626	106	}
	107
	108	if (setpriority(PRIO_PROCESS, 0, 0) == -1) {
	109	sia_ses_release(&ent);
700318f3	110	fatal("setpriority: %s", strerror (errno));
3c0ef626	111	}
	112
	113	if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS) {
700318f3	114	fatal("Couldn't launch session for %s from %s", user, host);
3c0ef626	115	}
	116
	117	sia_ses_release(&ent);
	118
	119	if (setreuid(geteuid(), geteuid()) < 0) {
700318f3	120	fatal("setreuid: %s", strerror(errno));
3c0ef626	121	}
	122	}
	123
	124	#endif /* HAVE_OSF_SIA */