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Kevin Steves19fa9b52002-04-12 15:36:07 +00001/*
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
Damien Miller92ddb7d2001-02-14 01:25:23 +110025#include "includes.h"
26
27#ifdef HAVE_OSF_SIA
28#include "ssh.h"
Kevin Steves6939b232002-04-10 16:09:51 +000029#include "auth.h"
Damien Miller92ddb7d2001-02-14 01:25:23 +110030#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
44extern ServerOptions options;
45extern int saved_argc;
46extern char **saved_argv;
47
48extern int errno;
49
50int
Kevin Stevese683e762002-04-04 19:02:28 +000051auth_sia_password(Authctxt *authctxt, char *pass)
Damien Miller92ddb7d2001-02-14 01:25:23 +110052{
53 int ret;
54 SIAENTITY *ent = NULL;
55 const char *host;
Kevin Stevese683e762002-04-04 19:02:28 +000056 char *user = authctxt->user;
Damien Miller92ddb7d2001-02-14 01:25:23 +110057
Damien Millerf3451a22002-02-05 12:40:46 +110058 host = get_canonical_hostname(options.verify_reverse_mapping);
Damien Miller92ddb7d2001-02-14 01:25:23 +110059
Damien Miller2101bfc2003-01-22 15:42:26 +110060 if (pass[0] == '\0')
Damien Miller92ddb7d2001-02-14 01:25:23 +110061 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) {
Kevin Steves0c283d82002-04-11 20:39:40 +000068 error("Couldn't authenticate %s from %s", user, host);
Damien Miller92ddb7d2001-02-14 01:25:23 +110069 if (ret & SIASTOP)
70 sia_ses_release(&ent);
71 return(0);
72 }
73
74 sia_ses_release(&ent);
75
76 return(1);
77}
78
79void
80session_setup_sia(char *user, char *tty)
81{
Damien Miller92ddb7d2001-02-14 01:25:23 +110082 struct passwd *pw;
83 SIAENTITY *ent = NULL;
84 const char *host;
85
Damien Millerf3451a22002-02-05 12:40:46 +110086 host = get_canonical_hostname (options.verify_reverse_mapping);
Damien Miller92ddb7d2001-02-14 01:25:23 +110087
88 if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, tty, 0,
Damien Miller364a9bd2001-04-16 18:37:05 +100089 NULL) != SIASUCCESS) {
Kevin Steves0c283d82002-04-11 20:39:40 +000090 fatal("sia_ses_init failed");
Damien Miller364a9bd2001-04-16 18:37:05 +100091 }
Damien Miller92ddb7d2001-02-14 01:25:23 +110092
93 if ((pw = getpwnam(user)) == NULL) {
94 sia_ses_release(&ent);
Kevin Steves0c283d82002-04-11 20:39:40 +000095 fatal("getpwnam: no user: %s", user);
Damien Miller92ddb7d2001-02-14 01:25:23 +110096 }
97 if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) {
98 sia_ses_release(&ent);
Kevin Steves0c283d82002-04-11 20:39:40 +000099 fatal("sia_make_entity_pwd failed");
Damien Miller92ddb7d2001-02-14 01:25:23 +1100100 }
101
102 ent->authtype = SIA_A_NONE;
Damien Miller364a9bd2001-04-16 18:37:05 +1000103 if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS) {
Kevin Steves0c283d82002-04-11 20:39:40 +0000104 fatal("Couldn't establish session for %s from %s", user,
Damien Miller92ddb7d2001-02-14 01:25:23 +1100105 host);
Damien Miller364a9bd2001-04-16 18:37:05 +1000106 }
Damien Miller92ddb7d2001-02-14 01:25:23 +1100107
108 if (setpriority(PRIO_PROCESS, 0, 0) == -1) {
109 sia_ses_release(&ent);
Kevin Steves0c283d82002-04-11 20:39:40 +0000110 fatal("setpriority: %s", strerror (errno));
Damien Miller92ddb7d2001-02-14 01:25:23 +1100111 }
112
Damien Miller364a9bd2001-04-16 18:37:05 +1000113 if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS) {
Kevin Steves0c283d82002-04-11 20:39:40 +0000114 fatal("Couldn't launch session for %s from %s", user, host);
Damien Miller364a9bd2001-04-16 18:37:05 +1000115 }
Damien Miller92ddb7d2001-02-14 01:25:23 +1100116
117 sia_ses_release(&ent);
118
Damien Miller364a9bd2001-04-16 18:37:05 +1000119 if (setreuid(geteuid(), geteuid()) < 0) {
Kevin Steves0c283d82002-04-11 20:39:40 +0000120 fatal("setreuid: %s", strerror(errno));
Damien Miller364a9bd2001-04-16 18:37:05 +1000121 }
Damien Miller92ddb7d2001-02-14 01:25:23 +1100122}
123
124#endif /* HAVE_OSF_SIA */