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2b78d49300
to correctly allow password changes on expired passwords. (No security implications, as its just a 'will I let you talk to the server' check). pam_winbind checks the password prior to changing it, so that users don't have to make up and type their new password when they havn't even got the old one right. This also helps with stacking etc. Andrew Bartlett
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127 lines
4.3 KiB
C
127 lines
4.3 KiB
C
/*
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* Unix SMB/CIFS implementation.
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* PAM error mapping functions
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* Copyright (C) Andrew Bartlett 2002
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "includes.h"
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#ifdef WITH_PAM
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#include <security/pam_appl.h>
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#if defined(PAM_AUTHTOK_RECOVERY_ERR) && !defined(PAM_AUTHTOK_RECOVER_ERR)
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#define PAM_AUTHTOK_RECOVER_ERR PAM_AUTHTOK_RECOVERY_ERR
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#endif
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/* PAM -> NT_STATUS map */
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const static struct {
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int pam_code;
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NTSTATUS ntstatus;
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} pam_to_nt_status_map[] = {
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{PAM_OPEN_ERR, NT_STATUS_UNSUCCESSFUL},
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{PAM_SYMBOL_ERR, NT_STATUS_UNSUCCESSFUL},
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{PAM_SERVICE_ERR, NT_STATUS_UNSUCCESSFUL},
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{PAM_SYSTEM_ERR, NT_STATUS_UNSUCCESSFUL},
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{PAM_BUF_ERR, NT_STATUS_UNSUCCESSFUL},
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{PAM_PERM_DENIED, NT_STATUS_ACCESS_DENIED},
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{PAM_AUTH_ERR, NT_STATUS_WRONG_PASSWORD},
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{PAM_CRED_INSUFFICIENT, NT_STATUS_INSUFFICIENT_LOGON_INFO}, /* FIXME: Is this correct? */
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{PAM_AUTHINFO_UNAVAIL, NT_STATUS_LOGON_FAILURE},
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{PAM_USER_UNKNOWN, NT_STATUS_NO_SUCH_USER},
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{PAM_MAXTRIES, NT_STATUS_REMOTE_SESSION_LIMIT}, /* FIXME: Is this correct? */
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{PAM_NEW_AUTHTOK_REQD, NT_STATUS_PASSWORD_MUST_CHANGE},
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{PAM_ACCT_EXPIRED, NT_STATUS_ACCOUNT_EXPIRED},
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{PAM_SESSION_ERR, NT_STATUS_INSUFFICIENT_RESOURCES},
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{PAM_CRED_UNAVAIL, NT_STATUS_NO_TOKEN}, /* FIXME: Is this correct? */
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{PAM_CRED_EXPIRED, NT_STATUS_PASSWORD_EXPIRED}, /* FIXME: Is this correct? */
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{PAM_CRED_ERR, NT_STATUS_UNSUCCESSFUL},
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{PAM_AUTHTOK_ERR, NT_STATUS_UNSUCCESSFUL},
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#ifdef PAM_AUTHTOK_RECOVER_ERR
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{PAM_AUTHTOK_RECOVER_ERR, NT_STATUS_UNSUCCESSFUL},
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#endif
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{PAM_AUTHTOK_EXPIRED, NT_STATUS_PASSWORD_EXPIRED},
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{PAM_SUCCESS, NT_STATUS_OK}
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};
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/* NT_STATUS -> PAM map */
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const static struct {
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NTSTATUS ntstatus;
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int pam_code;
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} nt_status_to_pam_map[] = {
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{NT_STATUS_UNSUCCESSFUL, PAM_SYSTEM_ERR},
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{NT_STATUS_NO_SUCH_USER, PAM_USER_UNKNOWN},
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{NT_STATUS_WRONG_PASSWORD, PAM_AUTH_ERR},
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{NT_STATUS_LOGON_FAILURE, PAM_AUTH_ERR},
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{NT_STATUS_ACCOUNT_EXPIRED, PAM_ACCT_EXPIRED},
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{NT_STATUS_PASSWORD_EXPIRED, PAM_AUTHTOK_EXPIRED},
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{NT_STATUS_PASSWORD_MUST_CHANGE, PAM_NEW_AUTHTOK_REQD},
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{NT_STATUS_OK, PAM_SUCCESS}
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};
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/*****************************************************************************
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convert a PAM error to a NT status32 code
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*****************************************************************************/
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NTSTATUS pam_to_nt_status(int pam_error)
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{
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int i;
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if (pam_error == 0) return NT_STATUS_OK;
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for (i=0; NT_STATUS_V(pam_to_nt_status_map[i].ntstatus); i++) {
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if (pam_error == pam_to_nt_status_map[i].pam_code)
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return pam_to_nt_status_map[i].ntstatus;
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}
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return NT_STATUS_UNSUCCESSFUL;
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}
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/*****************************************************************************
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convert an NT status32 code to a PAM error
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*****************************************************************************/
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int nt_status_to_pam(NTSTATUS nt_status)
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{
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int i;
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if NT_STATUS_IS_OK(nt_status) return PAM_SUCCESS;
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for (i=0; NT_STATUS_V(nt_status_to_pam_map[i].ntstatus); i++) {
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if (NT_STATUS_EQUAL(nt_status,nt_status_to_pam_map[i].ntstatus))
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return nt_status_to_pam_map[i].pam_code;
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}
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return PAM_SYSTEM_ERR;
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}
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#else
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/*****************************************************************************
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convert a PAM error to a NT status32 code
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*****************************************************************************/
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NTSTATUS pam_to_nt_status(int pam_error)
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{
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if (pam_error == 0) return NT_STATUS_OK;
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return NT_STATUS_UNSUCCESSFUL;
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}
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/*****************************************************************************
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convert an NT status32 code to a PAM error
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*****************************************************************************/
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int nt_status_to_pam(NTSTATUS nt_status)
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{
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if (NT_STATUS_EQUAL(nt_status, NT_STATUS_OK)) return 0;
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return 4; /* PAM_SYSTEM_ERR */
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}
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#endif
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