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
25 #include "includes.h"
26
27 #ifdef HAVE_OSF_SIA
28 #include "ssh.h"
29 #include "auth.h"
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
auth_sia_password(Authctxt * authctxt,char * pass)51 auth_sia_password(Authctxt *authctxt, char *pass)
52 {
53 int ret;
54 SIAENTITY *ent = NULL;
55 const char *host;
56 char *user = authctxt->user;
57
58 host = get_canonical_hostname(options.verify_reverse_mapping);
59
60 if (!user || !pass || pass[0] == '\0')
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) {
68 error("Couldn't authenticate %s from %s", user, host);
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
session_setup_sia(char * user,char * tty)80 session_setup_sia(char *user, char *tty)
81 {
82 struct passwd *pw;
83 SIAENTITY *ent = NULL;
84 const char *host;
85
86 host = get_canonical_hostname (options.verify_reverse_mapping);
87
88 if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, tty, 0,
89 NULL) != SIASUCCESS) {
90 fatal("sia_ses_init failed");
91 }
92
93 if ((pw = getpwnam(user)) == NULL) {
94 sia_ses_release(&ent);
95 fatal("getpwnam: no user: %s", user);
96 }
97 if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) {
98 sia_ses_release(&ent);
99 fatal("sia_make_entity_pwd failed");
100 }
101
102 ent->authtype = SIA_A_NONE;
103 if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS) {
104 fatal("Couldn't establish session for %s from %s", user,
105 host);
106 }
107
108 if (setpriority(PRIO_PROCESS, 0, 0) == -1) {
109 sia_ses_release(&ent);
110 fatal("setpriority: %s", strerror (errno));
111 }
112
113 if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS) {
114 fatal("Couldn't launch session for %s from %s", user, host);
115 }
116
117 sia_ses_release(&ent);
118
119 if (setreuid(geteuid(), geteuid()) < 0) {
120 fatal("setreuid: %s", strerror(errno));
121 }
122 }
123
124 #endif /* HAVE_OSF_SIA */
125
126 #pragma ident "%Z%%M% %I% %E% SMI"
127