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 * $OpenPAM: pam_set_data.c 938 2017-04-30 21:34:42Z des $ 36 */ 37 38 #ifdef HAVE_CONFIG_H 39 # include "config.h" 40 #endif 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 59 52 * 53 * Set module information 54 */ 55 56 int 57 pam_set_data(pam_handle_t *pamh, 58 const char *module_data_name, 59 void *data, 60 void (*cleanup)(pam_handle_t *pamh, 61 void *data, 62 int pam_end_status)) 63 { 64 pam_data_t *dp; 65 66 ENTERS(module_data_name); 67 for (dp = pamh->module_data; dp != NULL; dp = dp->next) { 68 if (strcmp(dp->name, module_data_name) == 0) { 69 if (dp->cleanup) 70 (dp->cleanup)(pamh, dp->data, PAM_SUCCESS); 71 dp->data = data; 72 dp->cleanup = cleanup; 73 RETURNC(PAM_SUCCESS); 74 } 75 } 76 if ((dp = malloc(sizeof *dp)) == NULL) 77 RETURNC(PAM_BUF_ERR); 78 if ((dp->name = strdup(module_data_name)) == NULL) { 79 FREE(dp); 80 RETURNC(PAM_BUF_ERR); 81 } 82 dp->data = data; 83 dp->cleanup = cleanup; 84 dp->next = pamh->module_data; 85 pamh->module_data = dp; 86 RETURNC(PAM_SUCCESS); 87 } 88 89 /* 90 * Error codes: 91 * 92 * PAM_SYSTEM_ERR 93 * PAM_BUF_ERR 94 */ 95 96 /** 97 * The =pam_set_data function associates a pointer to an opaque object 98 * with an arbitrary string specified by the =module_data_name argument, 99 * in the PAM context specified by the =pamh argument. 100 * 101 * If not =NULL, the =cleanup argument should point to a function 102 * responsible for releasing the resources associated with the object. 103 * 104 * This function and its counterpart =pam_get_data are useful for managing 105 * data that are meaningful only to a particular service module. 106 */ 107