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authorAndrew Bartlett <abartlet@samba.org>2002-02-05 09:40:36 +0000
committerAndrew Bartlett <abartlet@samba.org>2002-02-05 09:40:36 +0000
commited389ee8dc9246b2d6c4e483cee16f7255b9a7f5 (patch)
tree7cb6e1a429f7e996f051f75f91cef2ffe4d69f24 /source3/lib
parent209467ece15e2942c5105042f639e16b96fb8d3b (diff)
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Drastic impromvents to pam_winbind.
This adds code to do generic PAM -> NTSTATUS and NTSTATUS -> PAM error conversions, and uses them to make the error handling in pam_winbind sane. In particular, pam_winbind now uses PAM error codes, not silly '-1, -2 ...' stuff, and logs the NTSTATUS error that winbind now sends over the pipe. Added code to wbinfo to display these - makes a big difference in debugging winbindd. The main change here is the code to allow pam_winbind password changing to correctly stack - This code ripped from pam_unix, and the copyright attached. (Same as for all pam modules, including pam_winbind) Andrew Bartlett (This used to be commit dc1a72f896b83bc1ad3c7bf6c12c36ace3967280)
Diffstat (limited to 'source3/lib')
-rw-r--r--source3/lib/pam_errors.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/source3/lib/pam_errors.c b/source3/lib/pam_errors.c
new file mode 100644
index 0000000000..d7765c7c51
--- /dev/null
+++ b/source3/lib/pam_errors.c
@@ -0,0 +1,122 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * PAM error mapping functions
+ * Copyright (C) Andrew Bartlett 2002
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+
+#ifdef WITH_PAM
+#include <security/pam_appl.h>
+
+/* PAM -> NT_STATUS map */
+static struct {
+ int pam_code;
+ NTSTATUS ntstatus;
+} pam_to_nt_status_map[] = {
+ {PAM_OPEN_ERR, NT_STATUS_UNSUCCESSFUL},
+ {PAM_SYMBOL_ERR, NT_STATUS_UNSUCCESSFUL},
+ {PAM_SERVICE_ERR, NT_STATUS_UNSUCCESSFUL},
+ {PAM_SYSTEM_ERR, NT_STATUS_UNSUCCESSFUL},
+ {PAM_BUF_ERR, NT_STATUS_UNSUCCESSFUL},
+ {PAM_PERM_DENIED, NT_STATUS_ACCESS_DENIED},
+ {PAM_AUTH_ERR, NT_STATUS_WRONG_PASSWORD},
+ {PAM_CRED_INSUFFICIENT, NT_STATUS_INSUFFICIENT_LOGON_INFO}, /* FIXME: Is this correct? */
+ {PAM_AUTHINFO_UNAVAIL, NT_STATUS_LOGON_FAILURE},
+ {PAM_USER_UNKNOWN, NT_STATUS_NO_SUCH_USER},
+ {PAM_MAXTRIES, NT_STATUS_REMOTE_SESSION_LIMIT}, /* FIXME: Is this correct? */
+ {PAM_NEW_AUTHTOK_REQD, NT_STATUS_PASSWORD_MUST_CHANGE},
+ {PAM_ACCT_EXPIRED, NT_STATUS_ACCOUNT_EXPIRED},
+ {PAM_SESSION_ERR, NT_STATUS_INSUFFICIENT_RESOURCES},
+ {PAM_CRED_UNAVAIL, NT_STATUS_NO_TOKEN}, /* FIXME: Is this correct? */
+ {PAM_CRED_EXPIRED, NT_STATUS_PASSWORD_EXPIRED}, /* FIXME: Is this correct? */
+ {PAM_CRED_ERR, NT_STATUS_UNSUCCESSFUL},
+ {PAM_AUTHTOK_ERR, NT_STATUS_UNSUCCESSFUL},
+#if defined(PAM_AUTHTOK_RECOVERY_ERR) && !defined(PAM_AUTHTOK_RECOVER_ERR)
+#define PAM_AUTHTOK_RECOVER_ERR PAM_AUTHTOK_RECOVERY_ERR
+#endif
+ {PAM_AUTHTOK_RECOVER_ERR, NT_STATUS_UNSUCCESSFUL},
+ {PAM_AUTHTOK_EXPIRED, NT_STATUS_PASSWORD_EXPIRED},
+ {PAM_SUCCESS, NT_STATUS_OK}
+};
+
+/* NT_STATUS -> PAM map */
+static struct {
+ NTSTATUS ntstatus;
+ int pam_code;
+} nt_status_to_pam_map[] = {
+ {NT_STATUS_UNSUCCESSFUL, PAM_SYSTEM_ERR},
+ {NT_STATUS_NO_SUCH_USER, PAM_USER_UNKNOWN},
+ {NT_STATUS_WRONG_PASSWORD, PAM_AUTH_ERR},
+ {NT_STATUS_LOGON_FAILURE, PAM_AUTH_ERR},
+ {NT_STATUS_ACCOUNT_EXPIRED, PAM_ACCT_EXPIRED},
+ {NT_STATUS_PASSWORD_MUST_CHANGE, PAM_NEW_AUTHTOK_REQD},
+ {NT_STATUS_OK, PAM_SUCCESS}
+};
+
+/*****************************************************************************
+convert a PAM error to a NT status32 code
+ *****************************************************************************/
+NTSTATUS pam_to_nt_status(int pam_error)
+{
+ int i;
+ if (pam_error == 0) return NT_STATUS_OK;
+
+ for (i=0; NT_STATUS_V(pam_to_nt_status_map[i].ntstatus); i++) {
+ if (pam_error == pam_to_nt_status_map[i].pam_code)
+ return pam_to_nt_status_map[i].ntstatus;
+ }
+ return NT_STATUS_UNSUCCESSFUL;
+}
+
+/*****************************************************************************
+convert an NT status32 code to a PAM error
+ *****************************************************************************/
+int nt_status_to_pam(NTSTATUS nt_status)
+{
+ int i;
+ if NT_STATUS_IS_OK(nt_status) return PAM_SUCCESS;
+
+ for (i=0; NT_STATUS_V(nt_status_to_pam_map[i].ntstatus); i++) {
+ if (NT_STATUS_EQUAL(nt_status,nt_status_to_pam_map[i].ntstatus))
+ return nt_status_to_pam_map[i].pam_code;
+ }
+ return PAM_SYSTEM_ERR;
+}
+
+#else
+
+/*****************************************************************************
+convert a PAM error to a NT status32 code
+ *****************************************************************************/
+NTSTATUS pam_to_ntstatus(int pam_error)
+{
+ if (pam_errno == 0) return NT_STATUS_OK;
+ return NT_STATUS_UNSUCCESSFUL;
+}
+
+/*****************************************************************************
+convert an NT status32 code to a PAM error
+ *****************************************************************************/
+int ntstatus_to_pam(NTSTATUS nt_status)
+{
+ if (nt_status == NT_STATUS_OK) return 0;
+ return 4; /* PAM_SYSTEM_ERR */
+}
+
+#endif
+