1/*
2 *  Unix SMB/CIFS implementation.
3 *  PAM error mapping functions
4 *  Copyright (C) Andrew Bartlett 2002
5 *
6 *  This program is free software; you can redistribute it and/or modify
7 *  it under the terms of the GNU General Public License as published by
8 *  the Free Software Foundation; either version 3 of the License, or
9 *  (at your option) any later version.
10 *
11 *  This program is distributed in the hope that it will be useful,
12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *  GNU General Public License for more details.
15 *
16 *  You should have received a copy of the GNU General Public License
17 *  along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include "includes.h"
21#include "auth/ntlm/pam_errors.h"
22
23#ifdef WITH_HAVE_SECURITY_PAM_APPL_H
24#include <security/pam_appl.h>
25
26#if defined(PAM_AUTHTOK_RECOVERY_ERR) && !defined(PAM_AUTHTOK_RECOVER_ERR)
27#define PAM_AUTHTOK_RECOVER_ERR PAM_AUTHTOK_RECOVERY_ERR
28#endif
29
30/* PAM -> NT_STATUS map */
31static const struct {
32	int pam_code;
33	NTSTATUS ntstatus;
34} pam_to_nt_status_map[] = {
35	{PAM_OPEN_ERR, NT_STATUS_UNSUCCESSFUL},
36	{PAM_SYMBOL_ERR, NT_STATUS_UNSUCCESSFUL},
37	{PAM_SERVICE_ERR, NT_STATUS_UNSUCCESSFUL},
38	{PAM_SYSTEM_ERR,  NT_STATUS_UNSUCCESSFUL},
39	{PAM_BUF_ERR, NT_STATUS_UNSUCCESSFUL},
40	{PAM_PERM_DENIED, NT_STATUS_ACCESS_DENIED},
41	{PAM_AUTH_ERR, NT_STATUS_WRONG_PASSWORD},
42	{PAM_CRED_INSUFFICIENT, NT_STATUS_INSUFFICIENT_LOGON_INFO}, /* FIXME:  Is this correct? */
43	{PAM_AUTHINFO_UNAVAIL, NT_STATUS_LOGON_FAILURE},
44	{PAM_USER_UNKNOWN, NT_STATUS_NO_SUCH_USER},
45	{PAM_MAXTRIES, NT_STATUS_REMOTE_SESSION_LIMIT}, /* FIXME:  Is this correct? */
46	{PAM_NEW_AUTHTOK_REQD, NT_STATUS_PASSWORD_MUST_CHANGE},
47	{PAM_ACCT_EXPIRED, NT_STATUS_ACCOUNT_EXPIRED},
48	{PAM_SESSION_ERR, NT_STATUS_INSUFFICIENT_RESOURCES},
49	{PAM_CRED_UNAVAIL, NT_STATUS_NO_TOKEN},  /* FIXME:  Is this correct? */
50	{PAM_CRED_EXPIRED, NT_STATUS_PASSWORD_EXPIRED},  /* FIXME:  Is this correct? */
51	{PAM_CRED_ERR, NT_STATUS_UNSUCCESSFUL},
52	{PAM_AUTHTOK_ERR, NT_STATUS_UNSUCCESSFUL},
53#ifdef PAM_AUTHTOK_RECOVER_ERR
54	{PAM_AUTHTOK_RECOVER_ERR, NT_STATUS_UNSUCCESSFUL},
55#endif
56	{PAM_AUTHTOK_EXPIRED, NT_STATUS_PASSWORD_EXPIRED},
57	{PAM_SUCCESS, NT_STATUS_OK}
58};
59
60/* NT_STATUS -> PAM map */
61static const struct {
62	NTSTATUS ntstatus;
63	int pam_code;
64} nt_status_to_pam_map[] = {
65	{NT_STATUS_UNSUCCESSFUL, PAM_SYSTEM_ERR},
66	{NT_STATUS_NO_SUCH_USER, PAM_USER_UNKNOWN},
67	{NT_STATUS_WRONG_PASSWORD, PAM_AUTH_ERR},
68	{NT_STATUS_LOGON_FAILURE, PAM_AUTH_ERR},
69	{NT_STATUS_ACCOUNT_EXPIRED, PAM_ACCT_EXPIRED},
70	{NT_STATUS_PASSWORD_EXPIRED, PAM_AUTHTOK_EXPIRED},
71	{NT_STATUS_PASSWORD_MUST_CHANGE, PAM_NEW_AUTHTOK_REQD},
72	{NT_STATUS_OK, PAM_SUCCESS}
73};
74
75/*****************************************************************************
76convert a PAM error to a NT status32 code
77 *****************************************************************************/
78NTSTATUS pam_to_nt_status(int pam_error)
79{
80	int i;
81	if (pam_error == 0) return NT_STATUS_OK;
82
83	for (i=0; NT_STATUS_V(pam_to_nt_status_map[i].ntstatus); i++) {
84		if (pam_error == pam_to_nt_status_map[i].pam_code)
85			return pam_to_nt_status_map[i].ntstatus;
86	}
87	return NT_STATUS_UNSUCCESSFUL;
88}
89
90/*****************************************************************************
91convert an NT status32 code to a PAM error
92 *****************************************************************************/
93int nt_status_to_pam(NTSTATUS nt_status)
94{
95	int i;
96	if NT_STATUS_IS_OK(nt_status) return PAM_SUCCESS;
97
98	for (i=0; NT_STATUS_V(nt_status_to_pam_map[i].ntstatus); i++) {
99		if (NT_STATUS_EQUAL(nt_status,nt_status_to_pam_map[i].ntstatus))
100			return nt_status_to_pam_map[i].pam_code;
101	}
102	return PAM_SYSTEM_ERR;
103}
104
105#else
106
107/*****************************************************************************
108convert a PAM error to a NT status32 code
109 *****************************************************************************/
110NTSTATUS pam_to_nt_status(int pam_error)
111{
112	if (pam_error == 0) return NT_STATUS_OK;
113	return NT_STATUS_UNSUCCESSFUL;
114}
115
116/*****************************************************************************
117convert an NT status32 code to a PAM error
118 *****************************************************************************/
119int nt_status_to_pam(NTSTATUS nt_status)
120{
121	if (NT_STATUS_EQUAL(nt_status, NT_STATUS_OK)) return 0;
122	return 4; /* PAM_SYSTEM_ERR */
123}
124
125#endif
126
127