import HEAD into svn+ssh://svn.samba.org/home/svn/samba/trunk
[metze/old/v3-2-winbind-ndr.git] / source / lib / pam_errors.c
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 2 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, write to the Free Software
18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19  */
20
21 #include "includes.h"
22
23 #ifdef WITH_PAM
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 */
31 static 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 */
61 static 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 /*****************************************************************************
76 convert a PAM error to a NT status32 code
77  *****************************************************************************/
78 NTSTATUS 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 /*****************************************************************************
91 convert an NT status32 code to a PAM error
92  *****************************************************************************/
93 int 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 /*****************************************************************************
108 convert a PAM error to a NT status32 code
109  *****************************************************************************/
110 NTSTATUS 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 /*****************************************************************************
117 convert an NT status32 code to a PAM error
118  *****************************************************************************/
119 int 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