1 /*- 2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc. 3 * Copyright (c) 2004-2017 Dag-Erling Smørgrav 4 * All rights reserved. 5 * 6 * This software was developed for the FreeBSD Project by ThinkSec AS and 7 * Network Associates Laboratories, the Security Research Division of 8 * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 9 * ("CBOSS"), as part of the DARPA CHATS research program. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. The name of the author may not be used to endorse or promote 20 * products derived from this software without specific prior written 21 * permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #ifdef HAVE_CONFIG_H 37 # include "config.h" 38 #endif 39 40 #include <sys/param.h> 41 42 #include <stdlib.h> 43 #include <string.h> 44 45 #include <security/pam_appl.h> 46 47 #include "openpam_impl.h" 48 49 /* 50 * XSSO 4.2.1 51 * XSSO 6 page 60 52 * 53 * Set authentication information 54 */ 55 56 int 57 pam_set_item(pam_handle_t *pamh, 58 int item_type, 59 const void *item) 60 { 61 void **slot; 62 size_t nsize, osize; 63 64 ENTERI(item_type); 65 slot = &pamh->item[item_type]; 66 osize = nsize = 0; 67 switch (item_type) { 68 case PAM_SERVICE: 69 /* set once only, by pam_start() */ 70 if (*slot != NULL && item != NULL) 71 RETURNC(PAM_BAD_ITEM); 72 /* fall through */ 73 case PAM_USER: 74 case PAM_AUTHTOK: 75 case PAM_OLDAUTHTOK: 76 case PAM_TTY: 77 case PAM_RHOST: 78 case PAM_RUSER: 79 case PAM_USER_PROMPT: 80 case PAM_AUTHTOK_PROMPT: 81 case PAM_OLDAUTHTOK_PROMPT: 82 case PAM_HOST: 83 if (*slot != NULL) 84 osize = strlen(*slot) + 1; 85 if (item != NULL) 86 nsize = strlen(item) + 1; 87 break; 88 case PAM_REPOSITORY: 89 osize = nsize = sizeof(struct pam_repository); 90 break; 91 case PAM_CONV: 92 osize = nsize = sizeof(struct pam_conv); 93 break; 94 default: 95 RETURNC(PAM_BAD_ITEM); 96 } 97 if (*slot != NULL) { 98 memset(*slot, 0xd0, osize); 99 FREE(*slot); 100 } 101 if (item != NULL) { 102 if ((*slot = malloc(nsize)) == NULL) 103 RETURNC(PAM_BUF_ERR); 104 memcpy(*slot, item, nsize); 105 } else { 106 *slot = NULL; 107 } 108 RETURNC(PAM_SUCCESS); 109 } 110 111 /* 112 * Error codes: 113 * 114 * PAM_BAD_ITEM 115 * PAM_BUF_ERR 116 */ 117 118 /** 119 * The =pam_set_item function sets the item specified by the =item_type 120 * argument to a copy of the object pointed to by the =item argument. 121 * The item is stored in the PAM context specified by the =pamh argument. 122 * See =pam_get_item for a list of recognized item types. 123 */ 124