xref: /freebsd/crypto/openssh/auth-sia.c (revision d0c8c0bcc279fcf7568c5e97c15c115cbf83be4c)
183d2307dSDag-Erling Smørgrav /*
283d2307dSDag-Erling Smørgrav  * Copyright (c) 2002 Chris Adams.  All rights reserved.
383d2307dSDag-Erling Smørgrav  *
483d2307dSDag-Erling Smørgrav  * Redistribution and use in source and binary forms, with or without
583d2307dSDag-Erling Smørgrav  * modification, are permitted provided that the following conditions
683d2307dSDag-Erling Smørgrav  * are met:
783d2307dSDag-Erling Smørgrav  * 1. Redistributions of source code must retain the above copyright
883d2307dSDag-Erling Smørgrav  *    notice, this list of conditions and the following disclaimer.
983d2307dSDag-Erling Smørgrav  * 2. Redistributions in binary form must reproduce the above copyright
1083d2307dSDag-Erling Smørgrav  *    notice, this list of conditions and the following disclaimer in the
1183d2307dSDag-Erling Smørgrav  *    documentation and/or other materials provided with the distribution.
1283d2307dSDag-Erling Smørgrav  *
1383d2307dSDag-Erling Smørgrav  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
1483d2307dSDag-Erling Smørgrav  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
1583d2307dSDag-Erling Smørgrav  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
1683d2307dSDag-Erling Smørgrav  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
1783d2307dSDag-Erling Smørgrav  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
1883d2307dSDag-Erling Smørgrav  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1983d2307dSDag-Erling Smørgrav  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
2083d2307dSDag-Erling Smørgrav  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
2183d2307dSDag-Erling Smørgrav  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
2283d2307dSDag-Erling Smørgrav  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2383d2307dSDag-Erling Smørgrav  */
2483d2307dSDag-Erling Smørgrav 
2583d2307dSDag-Erling Smørgrav #include "includes.h"
2683d2307dSDag-Erling Smørgrav 
2783d2307dSDag-Erling Smørgrav #ifdef HAVE_OSF_SIA
2883d2307dSDag-Erling Smørgrav #include "ssh.h"
2983d2307dSDag-Erling Smørgrav #include "auth.h"
3083d2307dSDag-Erling Smørgrav #include "auth-sia.h"
3183d2307dSDag-Erling Smørgrav #include "log.h"
3283d2307dSDag-Erling Smørgrav #include "servconf.h"
3383d2307dSDag-Erling Smørgrav #include "canohost.h"
3483d2307dSDag-Erling Smørgrav 
3583d2307dSDag-Erling Smørgrav #include <sia.h>
3683d2307dSDag-Erling Smørgrav #include <siad.h>
3783d2307dSDag-Erling Smørgrav #include <pwd.h>
3883d2307dSDag-Erling Smørgrav #include <signal.h>
3983d2307dSDag-Erling Smørgrav #include <setjmp.h>
4083d2307dSDag-Erling Smørgrav #include <sys/resource.h>
4183d2307dSDag-Erling Smørgrav #include <unistd.h>
4283d2307dSDag-Erling Smørgrav #include <string.h>
4383d2307dSDag-Erling Smørgrav 
4483d2307dSDag-Erling Smørgrav extern ServerOptions options;
4583d2307dSDag-Erling Smørgrav extern int saved_argc;
4683d2307dSDag-Erling Smørgrav extern char **saved_argv;
4783d2307dSDag-Erling Smørgrav 
4883d2307dSDag-Erling Smørgrav int
4983d2307dSDag-Erling Smørgrav auth_sia_password(Authctxt *authctxt, char *pass)
5083d2307dSDag-Erling Smørgrav {
5183d2307dSDag-Erling Smørgrav 	int ret;
5283d2307dSDag-Erling Smørgrav 	SIAENTITY *ent = NULL;
5383d2307dSDag-Erling Smørgrav 	const char *host;
5483d2307dSDag-Erling Smørgrav 
5583d2307dSDag-Erling Smørgrav 	host = get_canonical_hostname(options.verify_reverse_mapping);
5683d2307dSDag-Erling Smørgrav 
57d0c8c0bcSDag-Erling Smørgrav 	if (!authctxt->user || !pass || pass[0] == '\0')
5883d2307dSDag-Erling Smørgrav 		return(0);
5983d2307dSDag-Erling Smørgrav 
60d0c8c0bcSDag-Erling Smørgrav 	if (sia_ses_init(&ent, saved_argc, saved_argv, host, authctxt->user,
61d0c8c0bcSDag-Erling Smørgrav 	    NULL, 0, NULL) != SIASUCCESS)
6283d2307dSDag-Erling Smørgrav 		return(0);
6383d2307dSDag-Erling Smørgrav 
6483d2307dSDag-Erling Smørgrav 	if ((ret = sia_ses_authent(NULL, pass, ent)) != SIASUCCESS) {
65d0c8c0bcSDag-Erling Smørgrav 		error("Couldn't authenticate %s from %s", authctxt->user,
66d0c8c0bcSDag-Erling Smørgrav 		    host);
6783d2307dSDag-Erling Smørgrav 		if (ret & SIASTOP)
6883d2307dSDag-Erling Smørgrav 			sia_ses_release(&ent);
6983d2307dSDag-Erling Smørgrav 		return(0);
7083d2307dSDag-Erling Smørgrav 	}
7183d2307dSDag-Erling Smørgrav 
7283d2307dSDag-Erling Smørgrav 	sia_ses_release(&ent);
7383d2307dSDag-Erling Smørgrav 
7483d2307dSDag-Erling Smørgrav 	return(1);
7583d2307dSDag-Erling Smørgrav }
7683d2307dSDag-Erling Smørgrav 
7783d2307dSDag-Erling Smørgrav void
78d0c8c0bcSDag-Erling Smørgrav session_setup_sia(struct passwd *pw, char *tty)
7983d2307dSDag-Erling Smørgrav {
8083d2307dSDag-Erling Smørgrav 	SIAENTITY *ent = NULL;
8183d2307dSDag-Erling Smørgrav 	const char *host;
8283d2307dSDag-Erling Smørgrav 
8383d2307dSDag-Erling Smørgrav 	host = get_canonical_hostname(options.verify_reverse_mapping);
8483d2307dSDag-Erling Smørgrav 
85d0c8c0bcSDag-Erling Smørgrav 	if (sia_ses_init(&ent, saved_argc, saved_argv, host, pw->pw_name, tty,
86d0c8c0bcSDag-Erling Smørgrav 	    0, NULL) != SIASUCCESS)
8783d2307dSDag-Erling Smørgrav 		fatal("sia_ses_init failed");
8883d2307dSDag-Erling Smørgrav 
8983d2307dSDag-Erling Smørgrav 	if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) {
9083d2307dSDag-Erling Smørgrav 		sia_ses_release(&ent);
9183d2307dSDag-Erling Smørgrav 		fatal("sia_make_entity_pwd failed");
9283d2307dSDag-Erling Smørgrav 	}
9383d2307dSDag-Erling Smørgrav 
9483d2307dSDag-Erling Smørgrav 	ent->authtype = SIA_A_NONE;
95d0c8c0bcSDag-Erling Smørgrav 	if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS)
96d0c8c0bcSDag-Erling Smørgrav 		fatal("Couldn't establish session for %s from %s",
97d0c8c0bcSDag-Erling Smørgrav 		    pw->pw_name, host);
98d0c8c0bcSDag-Erling Smørgrav 
99d0c8c0bcSDag-Erling Smørgrav 	if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS)
100d0c8c0bcSDag-Erling Smørgrav 		fatal("Couldn't launch session for %s from %s", pw->pw_name,
10183d2307dSDag-Erling Smørgrav 		    host);
10283d2307dSDag-Erling Smørgrav 
10383d2307dSDag-Erling Smørgrav 	sia_ses_release(&ent);
10483d2307dSDag-Erling Smørgrav 
105d0c8c0bcSDag-Erling Smørgrav 	if (setreuid(geteuid(), geteuid()) < 0)
10683d2307dSDag-Erling Smørgrav 		fatal("setreuid: %s", strerror(errno));
10783d2307dSDag-Erling Smørgrav }
10883d2307dSDag-Erling Smørgrav 
10983d2307dSDag-Erling Smørgrav #endif /* HAVE_OSF_SIA */
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