Kevin Steves | 19fa9b5 | 2002-04-12 15:36:07 +0000 | [diff] [blame] | 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 | |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 25 | #include "includes.h" |
| 26 | |
| 27 | #ifdef HAVE_OSF_SIA |
| 28 | #include "ssh.h" |
Kevin Steves | 6939b23 | 2002-04-10 16:09:51 +0000 | [diff] [blame] | 29 | #include "auth.h" |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 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 |
Kevin Steves | e683e76 | 2002-04-04 19:02:28 +0000 | [diff] [blame] | 51 | auth_sia_password(Authctxt *authctxt, char *pass) |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 52 | { |
| 53 | int ret; |
| 54 | SIAENTITY *ent = NULL; |
| 55 | const char *host; |
Kevin Steves | e683e76 | 2002-04-04 19:02:28 +0000 | [diff] [blame] | 56 | char *user = authctxt->user; |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 57 | |
Damien Miller | f3451a2 | 2002-02-05 12:40:46 +1100 | [diff] [blame] | 58 | host = get_canonical_hostname(options.verify_reverse_mapping); |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 59 | |
Damien Miller | 2101bfc | 2003-01-22 15:42:26 +1100 | [diff] [blame] | 60 | if (pass[0] == '\0') |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 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) { |
Kevin Steves | 0c283d8 | 2002-04-11 20:39:40 +0000 | [diff] [blame] | 68 | error("Couldn't authenticate %s from %s", user, host); |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 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 | { |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 82 | struct passwd *pw; |
| 83 | SIAENTITY *ent = NULL; |
| 84 | const char *host; |
| 85 | |
Damien Miller | f3451a2 | 2002-02-05 12:40:46 +1100 | [diff] [blame] | 86 | host = get_canonical_hostname (options.verify_reverse_mapping); |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 87 | |
| 88 | if (sia_ses_init(&ent, saved_argc, saved_argv, host, user, tty, 0, |
Damien Miller | 364a9bd | 2001-04-16 18:37:05 +1000 | [diff] [blame] | 89 | NULL) != SIASUCCESS) { |
Kevin Steves | 0c283d8 | 2002-04-11 20:39:40 +0000 | [diff] [blame] | 90 | fatal("sia_ses_init failed"); |
Damien Miller | 364a9bd | 2001-04-16 18:37:05 +1000 | [diff] [blame] | 91 | } |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 92 | |
| 93 | if ((pw = getpwnam(user)) == NULL) { |
| 94 | sia_ses_release(&ent); |
Kevin Steves | 0c283d8 | 2002-04-11 20:39:40 +0000 | [diff] [blame] | 95 | fatal("getpwnam: no user: %s", user); |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 96 | } |
| 97 | if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) { |
| 98 | sia_ses_release(&ent); |
Kevin Steves | 0c283d8 | 2002-04-11 20:39:40 +0000 | [diff] [blame] | 99 | fatal("sia_make_entity_pwd failed"); |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 100 | } |
| 101 | |
| 102 | ent->authtype = SIA_A_NONE; |
Damien Miller | 364a9bd | 2001-04-16 18:37:05 +1000 | [diff] [blame] | 103 | if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS) { |
Kevin Steves | 0c283d8 | 2002-04-11 20:39:40 +0000 | [diff] [blame] | 104 | fatal("Couldn't establish session for %s from %s", user, |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 105 | host); |
Damien Miller | 364a9bd | 2001-04-16 18:37:05 +1000 | [diff] [blame] | 106 | } |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 107 | |
| 108 | if (setpriority(PRIO_PROCESS, 0, 0) == -1) { |
| 109 | sia_ses_release(&ent); |
Kevin Steves | 0c283d8 | 2002-04-11 20:39:40 +0000 | [diff] [blame] | 110 | fatal("setpriority: %s", strerror (errno)); |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 111 | } |
| 112 | |
Damien Miller | 364a9bd | 2001-04-16 18:37:05 +1000 | [diff] [blame] | 113 | if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS) { |
Kevin Steves | 0c283d8 | 2002-04-11 20:39:40 +0000 | [diff] [blame] | 114 | fatal("Couldn't launch session for %s from %s", user, host); |
Damien Miller | 364a9bd | 2001-04-16 18:37:05 +1000 | [diff] [blame] | 115 | } |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 116 | |
| 117 | sia_ses_release(&ent); |
| 118 | |
Damien Miller | 364a9bd | 2001-04-16 18:37:05 +1000 | [diff] [blame] | 119 | if (setreuid(geteuid(), geteuid()) < 0) { |
Kevin Steves | 0c283d8 | 2002-04-11 20:39:40 +0000 | [diff] [blame] | 120 | fatal("setreuid: %s", strerror(errno)); |
Damien Miller | 364a9bd | 2001-04-16 18:37:05 +1000 | [diff] [blame] | 121 | } |
Damien Miller | 92ddb7d | 2001-02-14 01:25:23 +1100 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | #endif /* HAVE_OSF_SIA */ |