source: openpam/trunk/lib/openpam_impl.h @ 106

Last change on this file since 106 was 106, checked in by des, 13 years ago

Add openpam_{borrow,restore}_cred() (for temporarily switching to
user credentials) and openpam_free_data() (generic cleanup function
for pam_set_data() consumers)

Sponsored by: DARPA, NAI Labs

File size: 3.4 KB
Line 
1/*-
2 * Copyright (c) 2001 Networks Associates Technology, 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 * $P4: //depot/projects/openpam/lib/openpam_impl.h#12 $
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#ifdef NGROUPS_MAX
97#define PAM_SAVED_CRED "pam_saved_cred"
98struct pam_saved_cred {
99        uid_t    euid;
100        gid_t    egid;
101        gid_t    groups[NGROUPS_MAX];
102        int      ngroups;
103};
104#endif
105
106#define PAM_OTHER       "other"
107
108int             openpam_dispatch(pam_handle_t *, int, int);
109int             openpam_findenv(pam_handle_t *, const char *, size_t);
110int             openpam_add_module(pam_handle_t *, int, int,
111                                   const char *, int, const char **);
112void            openpam_clear_chains(pam_handle_t *);
113
114#ifdef OPENPAM_STATIC_MODULES
115pam_module_t   *openpam_static(const char *);
116#endif
117pam_module_t   *openpam_dynamic(const char *);
118
119#endif
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