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 int 49 auth_sia_password(Authctxt *authctxt, char *pass) 50 { 51 int ret; 52 SIAENTITY *ent = NULL; 53 const char *host; 54 55 host = get_canonical_hostname(options.verify_reverse_mapping); 56 57 if (!authctxt->user || !pass || pass[0] == '\0') 58 return(0); 59 60 if (sia_ses_init(&ent, saved_argc, saved_argv, host, authctxt->user, 61 NULL, 0, NULL) != SIASUCCESS) 62 return(0); 63 64 if ((ret = sia_ses_authent(NULL, pass, ent)) != SIASUCCESS) { 65 error("Couldn't authenticate %s from %s", authctxt->user, 66 host); 67 if (ret & SIASTOP) 68 sia_ses_release(&ent); 69 return(0); 70 } 71 72 sia_ses_release(&ent); 73 74 return(1); 75 } 76 77 void 78 session_setup_sia(struct passwd *pw, char *tty) 79 { 80 SIAENTITY *ent = NULL; 81 const char *host; 82 83 host = get_canonical_hostname(options.verify_reverse_mapping); 84 85 if (sia_ses_init(&ent, saved_argc, saved_argv, host, pw->pw_name, tty, 86 0, NULL) != SIASUCCESS) 87 fatal("sia_ses_init failed"); 88 89 if (sia_make_entity_pwd(pw, ent) != SIASUCCESS) { 90 sia_ses_release(&ent); 91 fatal("sia_make_entity_pwd failed"); 92 } 93 94 ent->authtype = SIA_A_NONE; 95 if (sia_ses_estab(sia_collect_trm, ent) != SIASUCCESS) 96 fatal("Couldn't establish session for %s from %s", 97 pw->pw_name, host); 98 99 if (sia_ses_launch(sia_collect_trm, ent) != SIASUCCESS) 100 fatal("Couldn't launch session for %s from %s", pw->pw_name, 101 host); 102 103 sia_ses_release(&ent); 104 105 if (setreuid(geteuid(), geteuid()) < 0) 106 fatal("setreuid: %s", strerror(errno)); 107 } 108 109 #endif /* HAVE_OSF_SIA */ 110