openpam_impl.h revision 91100 
1/*-
2 * Copyright (c) 2001 Networks Associates Technologies, Inc.
3 * All rights reserved.
4 *
5 * This software was developed for the FreeBSD Project by ThinkSec AS and
6 * NAI Labs, the Security Research Division of Network Associates, Inc.
7 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
8 * DARPA CHATS research program.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote
19 *    products derived from this software without specific prior written
20 *    permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 * $Id$
35 */
36
37#ifndef _OPENPAM_IMPL_H_INCLUDED
38#define _OPENPAM_IMPL_H_INCLUDED
39
40#include <security/openpam.h>
41
42extern const char *_pam_sm_func_name[PAM_NUM_PRIMITIVES];
43
44/*
45 * Control flags
46 */
47#define PAM_REQUIRED		1
48#define PAM_REQUISITE		2
49#define PAM_SUFFICIENT		3
50#define PAM_OPTIONAL		4
51#define PAM_NUM_CONTROLFLAGS	5
52
53/*
54 * Chains
55 */
56#define PAM_AUTH		0
57#define PAM_ACCOUNT		1
58#define PAM_SESSION		2
59#define PAM_PASSWORD		3
60#define PAM_NUM_CHAINS		4
61
62typedef struct pam_chain pam_chain_t;
63struct pam_chain {
64	pam_module_t	*module;
65	int		 flag;
66	int		 optc;
67	char	       **optv;
68	pam_chain_t	*next;
69};
70
71typedef struct pam_data pam_data_t;
72struct pam_data {
73	char		*name;
74	void		*data;
75	void		(*cleanup)(pam_handle_t *, void *, int);
76	pam_data_t	*next;
77};
78
79struct pam_handle {
80	char		*service;
81
82	/* chains */
83	pam_chain_t	*chains[PAM_NUM_CHAINS];
84	pam_chain_t	*current;
85
86	/* items and data */
87	void		*item[PAM_NUM_ITEMS];
88	pam_data_t	*module_data;
89
90	/* environment list */
91	char	       **env;
92	int		 env_count;
93	int		 env_size;
94};
95
96#define PAM_OTHER	"other"
97
98int		openpam_dispatch(pam_handle_t *, int, int);
99int		openpam_findenv(pam_handle_t *, const char *, size_t);
100int		openpam_add_module(pam_handle_t *, int, int,
101				   const char *, int, const char **);
102void		openpam_clear_chains(pam_handle_t *);
103
104#ifdef OPENPAM_STATIC_MODULES
105pam_module_t   *openpam_static(const char *);
106#endif
107
108#endif
109