s3-auth: Remove security=share (depricated since 3.6).

This patch removes security=share, which Samba implemented by matching
the per-share password provided by the client in the Tree Connect with
a selection of usernames supplied by the client, the smb.conf or
guessed from the environment.

The rationale for the removal is that for the bulk of security=share
users, we just we need a very simple way to run a 'trust the network'
Samba server, where users mark shares as guest ok.  This is still
supported, and the smb.conf options are documented at
https://wiki.samba.org/index.php/Public_Samba_Server

At the same time, this closes the door on one of the most arcane areas
of Samba authentication.

Naturally, full user-name/password authentication remain available in
security=user and above.

This includes documentation updates for username and only user, which
now only do a small amount of what they used to do.

Andrew Bartlett

                       --------------
                      /              \
                     /      REST      \
                    /        IN        \
                   /       PEACE        \
                  /                      \
                  |      SEC_SHARE       |
                  |    security=share    |
                  |                      |
                  |                      |
                  |       5 March        |
                  |                      |
                  |        2012          |
                 *|     *  *  *          | *
        _________)/\\_//(\/(/\)/\//\/\///|_)_______

1 files changed, 0 insertions, 169 deletions

diff --git a/source3/auth/auth_compat.c b/source3/auth/auth_compat.c
deleted file mode 100644
index e7225a27562..00000000000
--- a/source3/auth/auth_compat.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/* 
-   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 3 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, see <http://www.gnu.org/licenses/>.
-*/
-
-#include "includes.h"
-#include "auth.h"
-#include "../lib/tsocket/tsocket.h"
-
-extern struct auth_context *negprot_global_auth_context;
-extern bool global_encrypted_passwords_negotiated;
-
-#undef DBGC_CLASS
-#define DBGC_CLASS DBGC_AUTH
-
-/****************************************************************************
- COMPATIBILITY INTERFACES:
- ***************************************************************************/
-
-/****************************************************************************
-check if a username/password is OK assuming the password is in plaintext
-return True if the password is correct, False otherwise
-****************************************************************************/
-
-NTSTATUS check_plaintext_password(const char *smb_name,
-				  const struct tsocket_address *remote_address,
-				  DATA_BLOB plaintext_blob,
-				  struct auth_serversupplied_info **server_info)
-{
-	struct auth_context *plaintext_auth_context = NULL;
-	struct auth_usersupplied_info *user_info = NULL;
-	uint8_t chal[8];
-	NTSTATUS nt_status;
-
-	nt_status = make_auth_context_subsystem(talloc_tos(),
-						&plaintext_auth_context);
-	if (!NT_STATUS_IS_OK(nt_status)) {
-		return nt_status;
-	}
-
-	plaintext_auth_context->get_ntlm_challenge(plaintext_auth_context,
-						   chal);
-
-	if (!make_user_info_for_reply(&user_info, 
-				      smb_name, lp_workgroup(),
-				      remote_address,
-				      chal,
-				      plaintext_blob)) {
-		return NT_STATUS_NO_MEMORY;
-	}
-
-	nt_status = plaintext_auth_context->check_ntlm_password(plaintext_auth_context, 
-								user_info, server_info); 
-
-	TALLOC_FREE(plaintext_auth_context);
-	free_user_info(&user_info);
-	return nt_status;
-}
-
-static NTSTATUS pass_check_smb(struct auth_context *actx,
-			       const char *smb_name,
-			       const char *domain, 
-			       const struct tsocket_address *remote_address,
-			       DATA_BLOB lm_pwd,
-			       DATA_BLOB nt_pwd)
-
-{
-	NTSTATUS nt_status;
-	struct auth_serversupplied_info *server_info = NULL;
-	struct auth_usersupplied_info *user_info = NULL;
-	if (actx == NULL) {
-		return NT_STATUS_INTERNAL_ERROR;
-	}
-	make_user_info_for_reply_enc(&user_info, smb_name,
-				     domain,
-				     remote_address,
-				     lm_pwd,
-				     nt_pwd);
-	nt_status = actx->check_ntlm_password(actx, user_info, &server_info);
-	free_user_info(&user_info);
-	TALLOC_FREE(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(struct auth_context *actx, bool global_encrypted,
-		 const char *session_workgroup,
-		 const char *smb_name,
-		 const struct tsocket_address *remote_address,
-		 DATA_BLOB password_blob)
-{
-
-	DATA_BLOB null_password = data_blob_null;
-	bool encrypted = (global_encrypted && (password_blob.length == 24 || password_blob.length > 46));
-
-	if (encrypted) {
-		/* 
-		 * The password could be either NTLM or plain LM.  Try NTLM first, 
-		 * but fall-through as required.
-		 * Vista sends NTLMv2 here - we need to try the client given workgroup.
-		 */
-		if (session_workgroup) {
-			if (NT_STATUS_IS_OK(pass_check_smb(actx,
-							   smb_name,
-							   session_workgroup,
-							   remote_address,
-							   null_password,
-							   password_blob))) {
-				return True;
-			}
-			if (NT_STATUS_IS_OK(pass_check_smb(actx,
-							   smb_name,
-							   session_workgroup,
-							   remote_address,
-							   password_blob,
-							   null_password))) {
-				return True;
-			}
-		}
-
-		if (NT_STATUS_IS_OK(pass_check_smb(actx,
-						   smb_name,
-						   lp_workgroup(),
-						   remote_address,
-						   null_password,
-						   password_blob))) {
-			return True;
-		}
-
-		if (NT_STATUS_IS_OK(pass_check_smb(actx,
-						   smb_name,
-						   lp_workgroup(),
-						   remote_address,
-						   password_blob,
-						   null_password))) {
-			return True;
-		}
-	} else {
-		struct auth_serversupplied_info *server_info = NULL;
-		NTSTATUS nt_status = check_plaintext_password(smb_name,
-							      remote_address,
-							      password_blob,
-							      &server_info);
-		TALLOC_FREE(server_info);
-		if (NT_STATUS_IS_OK(nt_status)) {
-			return True;
-		}
-	}
-
-	return False;
-}