1 /*-
2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2011 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 * $Id: pam_set_data.c 648 2013-03-05 17:54:27Z 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
pam_set_data(pam_handle_t * pamh,const char * module_data_name,void * data,void (* cleanup)(pam_handle_t * pamh,void * data,int pam_end_status))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 if (pamh == NULL)
68 RETURNC(PAM_SYSTEM_ERR);
69 for (dp = pamh->module_data; dp != NULL; dp = dp->next) {
70 if (strcmp(dp->name, module_data_name) == 0) {
71 if (dp->cleanup)
72 (dp->cleanup)(pamh, dp->data, PAM_SUCCESS);
73 dp->data = data;
74 dp->cleanup = cleanup;
75 RETURNC(PAM_SUCCESS);
76 }
77 }
78 if ((dp = malloc(sizeof *dp)) == NULL)
79 RETURNC(PAM_BUF_ERR);
80 if ((dp->name = strdup(module_data_name)) == NULL) {
81 FREE(dp);
82 RETURNC(PAM_BUF_ERR);
83 }
84 dp->data = data;
85 dp->cleanup = cleanup;
86 dp->next = pamh->module_data;
87 pamh->module_data = dp;
88 RETURNC(PAM_SUCCESS);
89 }
90
91 /*
92 * Error codes:
93 *
94 * PAM_SYSTEM_ERR
95 * PAM_BUF_ERR
96 */
97
98 /**
99 * The =pam_set_data function associates a pointer to an opaque object
100 * with an arbitrary string specified by the =module_data_name argument,
101 * in the PAM context specified by the =pamh argument.
102 *
103 * If not =NULL, the =cleanup argument should point to a function
104 * responsible for releasing the resources associated with the object.
105 *
106 * This function and its counterpart =pam_get_data are useful for managing
107 * data that are meaningful only to a particular service module.
108 */
109