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40b74b3f | 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 | ||
b7ccb051 | 25 | #include "includes.h" |
26 | ||
27 | #ifdef HAVE_OSF_SIA | |
b7ccb051 | 28 | #include <sia.h> |
29 | #include <siad.h> | |
30 | #include <pwd.h> | |
31 | #include <signal.h> | |
32 | #include <setjmp.h> | |
33 | #include <sys/resource.h> | |
34 | #include <unistd.h> | |
24436b92 | 35 | #include <stdarg.h> |
b7ccb051 | 36 | #include <string.h> |
02e605ed | 37 | #include <sys/types.h> |
38 | #include <sys/security.h> | |
39 | #include <prot.h> | |
40 | #include <time.h> | |
b7ccb051 | 41 | |
24436b92 | 42 | #include "ssh.h" |
368a00c2 | 43 | #include "key.h" |
44 | #include "hostfile.h" | |
24436b92 | 45 | #include "auth.h" |
46 | #include "auth-sia.h" | |
47 | #include "log.h" | |
48 | #include "servconf.h" | |
49 | #include "canohost.h" | |
50 | #include "uidswap.h" | |
51 | ||
b7ccb051 | 52 | extern ServerOptions options; |
53 | extern int saved_argc; | |
54 | extern char **saved_argv; | |
55 | ||
02e605ed | 56 | static int |
57 | sia_password_change_required(const char *user) | |
58 | { | |
59 | struct es_passwd *acct; | |
60 | time_t pw_life; | |
61 | time_t pw_date; | |
62 | ||
63 | set_auth_parameters(saved_argc, saved_argv); | |
64 | ||
65 | if ((acct = getespwnam(user)) == NULL) { | |
66 | error("Couldn't access protected database entry for %s", user); | |
67 | endprpwent(); | |
68 | return (0); | |
69 | } | |
70 | ||
71 | /* If forced password change flag is set, honor it */ | |
72 | if (acct->uflg->fg_psw_chg_reqd && acct->ufld->fd_psw_chg_reqd) { | |
73 | endprpwent(); | |
74 | return (1); | |
75 | } | |
76 | ||
77 | /* Obtain password lifetime; if none, it can't have expired */ | |
78 | if (acct->uflg->fg_expire) | |
79 | pw_life = acct->ufld->fd_expire; | |
80 | else if (acct->sflg->fg_expire) | |
81 | pw_life = acct->sfld->fd_expire; | |
82 | else { | |
83 | endprpwent(); | |
84 | return (0); | |
85 | } | |
86 | ||
87 | /* Offset from last change; if none, it must be expired */ | |
88 | if (acct->uflg->fg_schange) | |
89 | pw_date = acct->ufld->fd_schange + pw_life; | |
90 | else { | |
91 | endprpwent(); | |
92 | return (1); | |
93 | } | |
94 | ||
95 | endprpwent(); | |
96 | ||
97 | /* If expiration date is prior to now, change password */ | |
98 | ||
99 | return (pw_date <= time((time_t *) NULL)); | |
100 | } | |
101 | ||
b7ccb051 | 102 | int |
8502d79f | 103 | sys_auth_passwd(Authctxt *authctxt, const char *pass) |
b7ccb051 | 104 | { |
105 | int ret; | |
106 | SIAENTITY *ent = NULL; | |
107 | const char *host; | |
108 | ||
c5a7d788 | 109 | host = get_canonical_hostname(options.use_dns); |
b7ccb051 | 110 | |
f1da2b8b | 111 | if (!authctxt->user || pass == NULL || pass[0] == '\0') |
112 | return (0); | |
b7ccb051 | 113 | |
58d0df4e | 114 | if (sia_ses_init(&ent, saved_argc, saved_argv, host, authctxt->user, |
115 | NULL, 0, NULL) != SIASUCCESS) | |
f1da2b8b | 116 | return (0); |
b7ccb051 | 117 | |
118 | if ((ret = sia_ses_authent(NULL, pass, ent)) != SIASUCCESS) { | |
f1da2b8b | 119 | error("Couldn't authenticate %s from %s", |
120 | authctxt->user, host); | |
b7ccb051 | 121 | if (ret & SIASTOP) |
122 | sia_ses_release(&ent); | |
f1da2b8b | 123 | |
124 | return (0); | |
b7ccb051 | 125 | } |
126 | ||
127 | sia_ses_release(&ent); | |
128 | ||
02e605ed | 129 | authctxt->force_pwchange = sia_password_change_required( |
130 | authctxt->user); | |
131 | ||
f1da2b8b | 132 | return (1); |
b7ccb051 | 133 | } |
134 | ||
135 | void | |
58d0df4e | 136 | session_setup_sia(struct passwd *pw, char *tty) |
b7ccb051 | 137 | { |
b7ccb051 | 138 | SIAENTITY *ent = NULL; |
139 | const char *host; | |
140 | ||
c5a7d788 | 141 | host = get_canonical_hostname(options.use_dns); |
b7ccb051 | 142 | |
aff51935 | 143 | if (sia_ses_init(&ent, saved_argc, saved_argv, host, pw->pw_name, |
f1da2b8b | 144 | tty, 0, NULL) != SIASUCCESS) |
65b91c76 | 145 | fatal("sia_ses_init failed"); |
b7ccb051 | 146 | |
b7ccb051 | 147 | if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) { |
148 | sia_ses_release(&ent); | |
65b91c76 | 149 | fatal("sia_make_entity_pwd failed"); |
b7ccb051 | 150 | } |
151 | ||
152 | ent->authtype = SIA_A_NONE; | |
58d0df4e | 153 | if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS) |
154 | fatal("Couldn't establish session for %s from %s", | |
155 | pw->pw_name, host); | |
b7ccb051 | 156 | |
58d0df4e | 157 | if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS) |
f1da2b8b | 158 | fatal("Couldn't launch session for %s from %s", |
159 | pw->pw_name, host); | |
b6453d99 | 160 | |
b7ccb051 | 161 | sia_ses_release(&ent); |
162 | ||
dbf8efb3 | 163 | setuid(0); |
164 | permanently_set_uid(pw); | |
b7ccb051 | 165 | } |
166 | ||
167 | #endif /* HAVE_OSF_SIA */ |