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 <stdlib.h> 41 #include <string.h> 42 43 #include <security/pam_appl.h> 44 45 #include "openpam_impl.h" 46 47 /* 48 * XSSO 4.2.1 49 * XSSO 6 page 59 50 * 51 * Set module information 52 */ 53 54 int 55 pam_set_data(pam_handle_t *pamh, 56 const char *module_data_name, 57 void *data, 58 void (*cleanup)(pam_handle_t *pamh, 59 void *data, 60 int pam_end_status)) 61 { 62 pam_data_t *dp; 63 64 ENTERS(module_data_name); 65 for (dp = pamh->module_data; dp != NULL; dp = dp->next) { 66 if (strcmp(dp->name, module_data_name) == 0) { 67 if (dp->cleanup) 68 (dp->cleanup)(pamh, dp->data, PAM_SUCCESS); 69 dp->data = data; 70 dp->cleanup = cleanup; 71 RETURNC(PAM_SUCCESS); 72 } 73 } 74 if ((dp = malloc(sizeof *dp)) == NULL) 75 RETURNC(PAM_BUF_ERR); 76 if ((dp->name = strdup(module_data_name)) == NULL) { 77 FREE(dp); 78 RETURNC(PAM_BUF_ERR); 79 } 80 dp->data = data; 81 dp->cleanup = cleanup; 82 dp->next = pamh->module_data; 83 pamh->module_data = dp; 84 RETURNC(PAM_SUCCESS); 85 } 86 87 /* 88 * Error codes: 89 * 90 * PAM_SYSTEM_ERR 91 * PAM_BUF_ERR 92 */ 93 94 /** 95 * The =pam_set_data function associates a pointer to an opaque object 96 * with an arbitrary string specified by the =module_data_name argument, 97 * in the PAM context specified by the =pamh argument. 98 * 99 * If not =NULL, the =cleanup argument should point to a function 100 * responsible for releasing the resources associated with the object. 101 * 102 * This function and its counterpart =pam_get_data are useful for managing 103 * data that are meaningful only to a particular service module. 104 */ 105