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-rw-r--r--source3/auth/auth_compat.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/source3/auth/auth_compat.c b/source3/auth/auth_compat.c
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+++ b/source3/auth/auth_compat.c
@@ -0,0 +1,119 @@
+/*
+ Unix SMB/CIFS implementation.
+ Password and authentication handling
+ Copyright (C) Andrew Bartlett 2001-2002
+
+ 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"
+
+/****************************************************************************
+ COMPATIBILITY INTERFACES:
+ ***************************************************************************/
+
+/****************************************************************************
+check if a username/password is OK assuming the password is a 24 byte
+SMB hash
+return True if the password is correct, False otherwise
+****************************************************************************/
+
+NTSTATUS check_plaintext_password(const char *smb_name, DATA_BLOB plaintext_password, auth_serversupplied_info **server_info)
+{
+ struct auth_context *plaintext_auth_context = NULL;
+ auth_usersupplied_info *user_info = NULL;
+ const uint8 *chal;
+ NTSTATUS nt_status;
+ if (!NT_STATUS_IS_OK(nt_status = make_auth_context_subsystem(&plaintext_auth_context))) {
+ return nt_status;
+ }
+
+ chal = plaintext_auth_context->get_ntlm_challenge(plaintext_auth_context);
+
+ if (!make_user_info_for_reply(&user_info,
+ smb_name, lp_workgroup(), chal,
+ plaintext_password)) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ nt_status = plaintext_auth_context->check_ntlm_password(plaintext_auth_context,
+ user_info, server_info);
+
+ (plaintext_auth_context->free)(&plaintext_auth_context);
+ free_user_info(&user_info);
+ return nt_status;
+}
+
+static NTSTATUS pass_check_smb(const char *smb_name,
+ const char *domain,
+ DATA_BLOB lm_pwd,
+ DATA_BLOB nt_pwd,
+ DATA_BLOB plaintext_password,
+ BOOL encrypted)
+
+{
+ NTSTATUS nt_status;
+ extern struct auth_context *negprot_global_auth_context;
+ auth_serversupplied_info *server_info = NULL;
+ if (encrypted) {
+ auth_usersupplied_info *user_info = NULL;
+ make_user_info_for_reply_enc(&user_info, smb_name,
+ domain,
+ lm_pwd,
+ nt_pwd);
+ nt_status = negprot_global_auth_context->check_ntlm_password(negprot_global_auth_context,
+ user_info, &server_info);
+ free_user_info(&user_info);
+ } else {
+ nt_status = check_plaintext_password(smb_name, plaintext_password, &server_info);
+ }
+ free_server_info(&server_info);
+ return nt_status;
+}
+
+/****************************************************************************
+check if a username/password pair is ok via the auth subsystem.
+return True if the password is correct, False otherwise
+****************************************************************************/
+BOOL password_ok(char *smb_name, DATA_BLOB password_blob)
+{
+
+ DATA_BLOB null_password = data_blob(NULL, 0);
+ extern BOOL global_encrypted_passwords_negotiated;
+ BOOL encrypted = (global_encrypted_passwords_negotiated && password_blob.length == 24);
+
+ if (encrypted) {
+ /*
+ * The password could be either NTLM or plain LM. Try NTLM first,
+ * but fall-through as required.
+ * NTLMv2 makes no sense here.
+ */
+ if (NT_STATUS_IS_OK(pass_check_smb(smb_name, lp_workgroup(), null_password, password_blob, null_password, encrypted))) {
+ return True;
+ }
+
+ if (NT_STATUS_IS_OK(pass_check_smb(smb_name, lp_workgroup(), password_blob, null_password, null_password, encrypted))) {
+ return True;
+ }
+ } else {
+ if (NT_STATUS_IS_OK(pass_check_smb(smb_name, lp_workgroup(), null_password, null_password, password_blob, encrypted))) {
+ return True;
+ }
+ }
+
+ return False;
+}
+
+