1/*-
2 * Copyright (c) 2002-2003 Networks Associates Technology, Inc.
3 * Copyright (c) 2004-2007 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_get_item.c 408 2007-12-21 11:36:24Z des $
36 */
37
38#include <sys/param.h>
39
40#include <security/pam_appl.h>
41
42#include "openpam_impl.h"
43
44const char *_pam_item_name[PAM_NUM_ITEMS] = {
45	"(NO ITEM)",
46	"PAM_SERVICE",
47	"PAM_USER",
48	"PAM_TTY",
49	"PAM_RHOST",
50	"PAM_CONV",
51	"PAM_AUTHTOK",
52	"PAM_OLDAUTHTOK",
53	"PAM_RUSER",
54	"PAM_USER_PROMPT",
55	"PAM_REPOSITORY",
56	"PAM_AUTHTOK_PROMPT",
57	"PAM_OLDAUTHTOK_PROMPT"
58};
59
60/*
61 * XSSO 4.2.1
62 * XSSO 6 page 46
63 *
64 * Get PAM information
65 */
66
67int
68pam_get_item(const pam_handle_t *pamh,
69	int item_type,
70	const void **item)
71{
72
73	ENTERI(item_type);
74	if (pamh == NULL)
75		RETURNC(PAM_SYSTEM_ERR);
76	switch (item_type) {
77	case PAM_SERVICE:
78	case PAM_USER:
79	case PAM_AUTHTOK:
80	case PAM_OLDAUTHTOK:
81	case PAM_TTY:
82	case PAM_RHOST:
83	case PAM_RUSER:
84	case PAM_CONV:
85	case PAM_USER_PROMPT:
86	case PAM_AUTHTOK_PROMPT:
87	case PAM_OLDAUTHTOK_PROMPT:
88	case PAM_REPOSITORY:
89		*item = pamh->item[item_type];
90		RETURNC(PAM_SUCCESS);
91	default:
92		RETURNC(PAM_SYMBOL_ERR);
93	}
94}
95
96/*
97 * Error codes:
98 *
99 *	PAM_SYMBOL_ERR
100 *	PAM_SYSTEM_ERR
101 */
102
103/**
104 * The =pam_get_item function stores a pointer to the item specified by
105 * the =item_type argument in the location specified by the =item
106 * argument.
107 * The item is retrieved from the PAM context specified by the =pamh
108 * argument.
109 * The following item types are recognized:
110 *
111 *	=PAM_SERVICE:
112 *		The name of the requesting service.
113 *	=PAM_USER:
114 *		The name of the user the application is trying to
115 *		authenticate.
116 *	=PAM_TTY:
117 *		The name of the current terminal.
118 *	=PAM_RHOST:
119 *		The name of the applicant's host.
120 *	=PAM_CONV:
121 *		A =struct pam_conv describing the current conversation
122 *		function.
123 *	=PAM_AUTHTOK:
124 *		The current authentication token.
125 *	=PAM_OLDAUTHTOK:
126 *		The expired authentication token.
127 *	=PAM_RUSER:
128 *		The name of the applicant.
129 *	=PAM_USER_PROMPT:
130 *		The prompt to use when asking the applicant for a user
131 *		name to authenticate as.
132 *	=PAM_AUTHTOK_PROMPT:
133 *		The prompt to use when asking the applicant for an
134 *		authentication token.
135 *	=PAM_OLDAUTHTOK_PROMPT:
136 *		The prompt to use when asking the applicant for an
137 *		expired authentication token prior to changing it.
138 *
139 * See =pam_start for a description of =struct pam_conv.
140 *
141 * >pam_set_item
142 */
143