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 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 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