/* 
   Unix SMB/CIFS implementation.
   client file operations
   Copyright (C) Andrew Tridgell 1994-1998
   Copyright (C) Jeremy Allison 2001-2002
   Copyright (C) James Myers 2003
   
   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 "smb.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/raw/raw_proto.h"
#include "librpc/gen_ndr/ndr_security.h"

#define SETUP_REQUEST(cmd, wct, buflen) do { \
	req = smbcli_request_setup(tree, cmd, wct, buflen); \
	if (!req) return NULL; \
} while (0)

/****************************************************************************
 Rename a file - async interface
****************************************************************************/
struct smbcli_request *smb_raw_rename_send(struct smbcli_tree *tree,
					union smb_rename *parms)
{
	struct smbcli_request *req = NULL; 
	struct smb_nttrans nt;
	TALLOC_CTX *mem_ctx;

	switch (parms->generic.level) {
	case RAW_RENAME_RENAME:
		SETUP_REQUEST(SMBmv, 1, 0);
		SSVAL(req->out.vwv, VWV(0), parms->rename.in.attrib);
		smbcli_req_append_ascii4(req, parms->rename.in.pattern1, STR_TERMINATE);
		smbcli_req_append_ascii4(req, parms->rename.in.pattern2, STR_TERMINATE);
		break;

	case RAW_RENAME_NTRENAME:
		SETUP_REQUEST(SMBntrename, 4, 0);
		SSVAL(req->out.vwv, VWV(0), parms->ntrename.in.attrib);
		SSVAL(req->out.vwv, VWV(1), parms->ntrename.in.flags);
		SIVAL(req->out.vwv, VWV(2), parms->ntrename.in.cluster_size);
		smbcli_req_append_ascii4(req, parms->ntrename.in.old_name, STR_TERMINATE);
		smbcli_req_append_ascii4(req, parms->ntrename.in.new_name, STR_TERMINATE);
		break;

	case RAW_RENAME_NTTRANS:

		mem_ctx = talloc_new(tree);

		nt.in.max_setup = 0;
		nt.in.max_param = 0;
		nt.in.max_data = 0;
		nt.in.setup_count = 0;
		nt.in.setup = NULL;
		nt.in.function = NT_TRANSACT_RENAME;
		nt.in.params = data_blob_talloc(mem_ctx, NULL, 4);
		nt.in.data = data_blob(NULL, 0);

		SSVAL(nt.in.params.data, VWV(0), parms->nttrans.in.file.fnum);
		SSVAL(nt.in.params.data, VWV(1), parms->nttrans.in.flags);

		smbcli_blob_append_string(tree->session, mem_ctx,
					  &nt.in.params, parms->nttrans.in.new_name,
					  STR_TERMINATE);

		req = smb_raw_nttrans_send(tree, &nt);
		talloc_free(mem_ctx);
		return req;
	}

	if (!smbcli_request_send(req)) {
		smbcli_request_destroy(req);
		return NULL;
	}

	return req;
}

/****************************************************************************
 Rename a file - sync interface
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_rename(struct smbcli_tree *tree,
			union smb_rename *parms)
{
	struct smbcli_request *req = smb_raw_rename_send(tree, parms);
	return smbcli_request_simple_recv(req);
}


/****************************************************************************
 Delete a file - async interface
****************************************************************************/
struct smbcli_request *smb_raw_unlink_send(struct smbcli_tree *tree,
					   union smb_unlink *parms)
{
	struct smbcli_request *req; 

	SETUP_REQUEST(SMBunlink, 1, 0);

	SSVAL(req->out.vwv, VWV(0), parms->unlink.in.attrib);
	smbcli_req_append_ascii4(req, parms->unlink.in.pattern, STR_TERMINATE);

	if (!smbcli_request_send(req)) {
		smbcli_request_destroy(req);
		return NULL;
	}
	return req;
}

/*
  delete a file - sync interface
*/
_PUBLIC_ NTSTATUS smb_raw_unlink(struct smbcli_tree *tree,
			union smb_unlink *parms)
{
	struct smbcli_request *req = smb_raw_unlink_send(tree, parms);
	return smbcli_request_simple_recv(req);
}


/****************************************************************************
 create a directory  using TRANSACT2_MKDIR - async interface
****************************************************************************/
static struct smbcli_request *smb_raw_t2mkdir_send(struct smbcli_tree *tree, 
						union smb_mkdir *parms)
{
	struct smb_trans2 t2;
	uint16_t setup = TRANSACT2_MKDIR;
	TALLOC_CTX *mem_ctx;
	struct smbcli_request *req;
	uint16_t data_total;

	mem_ctx = talloc_init("t2mkdir");

	data_total = ea_list_size(parms->t2mkdir.in.num_eas, parms->t2mkdir.in.eas);

	t2.in.max_param = 2;
	t2.in.max_data = 0;
	t2.in.max_setup = 0;
	t2.in.flags = 0;
	t2.in.timeout = 0;
	t2.in.setup_count = 1;
	t2.in.setup = &setup;
	t2.in.params = data_blob_talloc(mem_ctx, NULL, 4);
	t2.in.data = data_blob_talloc(mem_ctx, NULL, data_total);

	SIVAL(t2.in.params.data, VWV(0), 0); /* reserved */

	smbcli_blob_append_string(tree->session, mem_ctx, 
				  &t2.in.params, parms->t2mkdir.in.path, STR_TERMINATE);

	ea_put_list(t2.in.data.data, parms->t2mkdir.in.num_eas, parms->t2mkdir.in.eas);

	req = smb_raw_trans2_send(tree, &t2);

	talloc_free(mem_ctx);

	return req;
}

/****************************************************************************
 Create a directory - async interface
****************************************************************************/
struct smbcli_request *smb_raw_mkdir_send(struct smbcli_tree *tree,
				       union smb_mkdir *parms)
{
	struct smbcli_request *req; 

	if (parms->generic.level == RAW_MKDIR_T2MKDIR) {
		return smb_raw_t2mkdir_send(tree, parms);
	}

	if (parms->generic.level != RAW_MKDIR_MKDIR) {
		return NULL;
	}

	SETUP_REQUEST(SMBmkdir, 0, 0);
	
	smbcli_req_append_ascii4(req, parms->mkdir.in.path, STR_TERMINATE);

	if (!smbcli_request_send(req)) {
		return NULL;
	}

	return req;
}

/****************************************************************************
 Create a directory - sync interface
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_mkdir(struct smbcli_tree *tree,
		       union smb_mkdir *parms)
{
	struct smbcli_request *req = smb_raw_mkdir_send(tree, parms);
	return smbcli_request_simple_recv(req);
}

/****************************************************************************
 Remove a directory - async interface
****************************************************************************/
struct smbcli_request *smb_raw_rmdir_send(struct smbcli_tree *tree,
				       struct smb_rmdir *parms)
{
	struct smbcli_request *req; 

	SETUP_REQUEST(SMBrmdir, 0, 0);
	
	smbcli_req_append_ascii4(req, parms->in.path, STR_TERMINATE);

	if (!smbcli_request_send(req)) {
		smbcli_request_destroy(req);
		return NULL;
	}

	return req;
}

/****************************************************************************
 Remove a directory - sync interface
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_rmdir(struct smbcli_tree *tree,
		       struct smb_rmdir *parms)
{
	struct smbcli_request *req = smb_raw_rmdir_send(tree, parms);
	return smbcli_request_simple_recv(req);
}


/*
 Open a file using TRANSACT2_OPEN - async recv
*/
static NTSTATUS smb_raw_nttrans_create_recv(struct smbcli_request *req, 
					    TALLOC_CTX *mem_ctx, 
					    union smb_open *parms)
{
	NTSTATUS status;
	struct smb_nttrans nt;
	uint8_t *params;

	status = smb_raw_nttrans_recv(req, mem_ctx, &nt);
	if (!NT_STATUS_IS_OK(status)) return status;

	if (nt.out.params.length < 69) {
		return NT_STATUS_INVALID_PARAMETER;
	}

	params = nt.out.params.data;

	parms->ntcreatex.out.oplock_level =                 CVAL(params, 0);
	parms->ntcreatex.out.file.fnum =                    SVAL(params, 2);
	parms->ntcreatex.out.create_action =                IVAL(params, 4);
	parms->ntcreatex.out.create_time =   smbcli_pull_nttime(params, 12);
	parms->ntcreatex.out.access_time =   smbcli_pull_nttime(params, 20);
	parms->ntcreatex.out.write_time =    smbcli_pull_nttime(params, 28);
	parms->ntcreatex.out.change_time =   smbcli_pull_nttime(params, 36);
	parms->ntcreatex.out.attrib =                      IVAL(params, 44);
	parms->ntcreatex.out.alloc_size =                  BVAL(params, 48);
	parms->ntcreatex.out.size =                        BVAL(params, 56);
	parms->ntcreatex.out.file_type =                   SVAL(params, 64);
	parms->ntcreatex.out.ipc_state =                   SVAL(params, 66);
	parms->ntcreatex.out.is_directory =                CVAL(params, 68);
	
	return NT_STATUS_OK;
}


/*
 Open a file using NTTRANS CREATE - async send 
*/
static struct smbcli_request *smb_raw_nttrans_create_send(struct smbcli_tree *tree, 
							  union smb_open *parms)
{
	struct smb_nttrans nt;
	uint8_t *params;
	TALLOC_CTX *mem_ctx = talloc_new(tree);
	uint16_t fname_len;
	DATA_BLOB sd_blob, ea_blob;
	struct smbcli_request *req;

	nt.in.max_setup = 0;
	nt.in.max_param = 101;
	nt.in.max_data  = 0;
	nt.in.setup_count = 0;
	nt.in.function = NT_TRANSACT_CREATE;
	nt.in.setup = NULL;

	sd_blob = data_blob(NULL, 0);
	ea_blob = data_blob(NULL, 0);

	if (parms->ntcreatex.in.sec_desc) {
		enum ndr_err_code ndr_err;
		ndr_err = ndr_push_struct_blob(&sd_blob, mem_ctx, NULL,
					       parms->ntcreatex.in.sec_desc,
					       (ndr_push_flags_fn_t)ndr_push_security_descriptor);
		if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
			talloc_free(mem_ctx);
			return NULL;
		}
	}

	if (parms->ntcreatex.in.ea_list) {
		uint32_t ea_size = ea_list_size_chained(parms->ntcreatex.in.ea_list->num_eas,
							parms->ntcreatex.in.ea_list->eas, 4);
		ea_blob = data_blob_talloc(mem_ctx, NULL, ea_size);
		if (ea_blob.data == NULL) {
			return NULL;
		}
		ea_put_list_chained(ea_blob.data, 
				    parms->ntcreatex.in.ea_list->num_eas,
				    parms->ntcreatex.in.ea_list->eas, 4);
	}

	nt.in.params = data_blob_talloc(mem_ctx, NULL, 53);
	if (nt.in.params.data == NULL) {
		talloc_free(mem_ctx);
		return NULL;
	}

	/* build the parameter section */
	params = nt.in.params.data;

	SIVAL(params,  0, parms->ntcreatex.in.flags);
	SIVAL(params,  4, parms->ntcreatex.in.root_fid);
	SIVAL(params,  8, parms->ntcreatex.in.access_mask);
	SBVAL(params, 12, parms->ntcreatex.in.alloc_size);
	SIVAL(params, 20, parms->ntcreatex.in.file_attr);
	SIVAL(params, 24, parms->ntcreatex.in.share_access);
	SIVAL(params, 28, parms->ntcreatex.in.open_disposition);
	SIVAL(params, 32, parms->ntcreatex.in.create_options);
	SIVAL(params, 36, sd_blob.length);
	SIVAL(params, 40, ea_blob.length);
	SIVAL(params, 48, parms->ntcreatex.in.impersonation);
	SCVAL(params, 52, parms->ntcreatex.in.security_flags);

	/* the empty string first forces the correct alignment */
	smbcli_blob_append_string(tree->session, mem_ctx, &nt.in.params,"", 0);
	fname_len = smbcli_blob_append_string(tree->session, mem_ctx, &nt.in.params,
					      parms->ntcreatex.in.fname, STR_TERMINATE);

	SIVAL(nt.in.params.data, 44, fname_len);

	/* build the data section */
	nt.in.data = data_blob_talloc(mem_ctx, NULL, sd_blob.length + ea_blob.length);
	memcpy(nt.in.data.data, sd_blob.data, sd_blob.length);
	memcpy(nt.in.data.data+sd_blob.length, ea_blob.data, ea_blob.length);

	/* send the request on its way */
	req = smb_raw_nttrans_send(tree, &nt);

	talloc_free(mem_ctx);
	
	return req;
}


/****************************************************************************
 Open a file using TRANSACT2_OPEN - async send 
****************************************************************************/
static struct smbcli_request *smb_raw_t2open_send(struct smbcli_tree *tree, 
					       union smb_open *parms)
{
	struct smb_trans2 t2;
	uint16_t setup = TRANSACT2_OPEN;
	TALLOC_CTX *mem_ctx = talloc_init("smb_raw_t2open");
	struct smbcli_request *req;
	uint16_t list_size;

	list_size = ea_list_size(parms->t2open.in.num_eas, parms->t2open.in.eas);

	t2.in.max_param = 30;
	t2.in.max_data = 0;
	t2.in.max_setup = 0;
	t2.in.flags = 0;
	t2.in.timeout = 0;
	t2.in.setup_count = 1;
	t2.in.setup = &setup;
	t2.in.params = data_blob_talloc(mem_ctx, NULL, 28);
	t2.in.data = data_blob_talloc(mem_ctx, NULL, list_size);

	SSVAL(t2.in.params.data, VWV(0), parms->t2open.in.flags);
	SSVAL(t2.in.params.data, VWV(1), parms->t2open.in.open_mode);
	SSVAL(t2.in.params.data, VWV(2), parms->t2open.in.search_attrs);
	SSVAL(t2.in.params.data, VWV(3), parms->t2open.in.file_attrs);
	raw_push_dos_date(tree->session->transport, 
			  t2.in.params.data, VWV(4), parms->t2open.in.write_time);
	SSVAL(t2.in.params.data, VWV(6), parms->t2open.in.open_func);
	SIVAL(t2.in.params.data, VWV(7), parms->t2open.in.size);
	SIVAL(t2.in.params.data, VWV(9), parms->t2open.in.timeout);
	SIVAL(t2.in.params.data, VWV(11), 0);
	SSVAL(t2.in.params.data, VWV(13), 0);

	smbcli_blob_append_string(tree->session, mem_ctx, 
				  &t2.in.params, parms->t2open.in.fname, 
				  STR_TERMINATE);

	ea_put_list(t2.in.data.data, parms->t2open.in.num_eas, parms->t2open.in.eas);

	req = smb_raw_trans2_send(tree, &t2);

	talloc_free(mem_ctx);

	return req;
}


/****************************************************************************
 Open a file using TRANSACT2_OPEN - async recv
****************************************************************************/
static NTSTATUS smb_raw_t2open_recv(struct smbcli_request *req, TALLOC_CTX *mem_ctx, union smb_open *parms)
{
	struct smbcli_transport *transport = req->transport;
	struct smb_trans2 t2;
	NTSTATUS status;

	status = smb_raw_trans2_recv(req, mem_ctx, &t2);
	if (!NT_STATUS_IS_OK(status)) return status;

	if (t2.out.params.length < 30) {
		return NT_STATUS_INFO_LENGTH_MISMATCH;
	}

	parms->t2open.out.file.fnum =   SVAL(t2.out.params.data, VWV(0));
	parms->t2open.out.attrib =      SVAL(t2.out.params.data, VWV(1));
	parms->t2open.out.write_time =  raw_pull_dos_date3(transport, t2.out.params.data + VWV(2));
	parms->t2open.out.size =        IVAL(t2.out.params.data, VWV(4));
	parms->t2open.out.access =      SVAL(t2.out.params.data, VWV(6));
	parms->t2open.out.ftype =       SVAL(t2.out.params.data, VWV(7));
	parms->t2open.out.devstate =    SVAL(t2.out.params.data, VWV(8));
	parms->t2open.out.action =      SVAL(t2.out.params.data, VWV(9));
	parms->t2open.out.file_id =     SVAL(t2.out.params.data, VWV(10));

	return NT_STATUS_OK;
}

/****************************************************************************
 Open a file - async send
****************************************************************************/
_PUBLIC_ struct smbcli_request *smb_raw_open_send(struct smbcli_tree *tree, union smb_open *parms)
{
	int len;
	struct smbcli_request *req = NULL; 
	bool bigoffset = false;

	switch (parms->generic.level) {
	case RAW_OPEN_T2OPEN:
		return smb_raw_t2open_send(tree, parms);

	case RAW_OPEN_OPEN:
		SETUP_REQUEST(SMBopen, 2, 0);
		SSVAL(req->out.vwv, VWV(0), parms->openold.in.open_mode);
		SSVAL(req->out.vwv, VWV(1), parms->openold.in.search_attrs);
		smbcli_req_append_ascii4(req, parms->openold.in.fname, STR_TERMINATE);
		break;
		
	case RAW_OPEN_OPENX:
		SETUP_REQUEST(SMBopenX, 15, 0);
		SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
		SSVAL(req->out.vwv, VWV(1), 0);
		SSVAL(req->out.vwv, VWV(2), parms->openx.in.flags);
		SSVAL(req->out.vwv, VWV(3), parms->openx.in.open_mode);
		SSVAL(req->out.vwv, VWV(4), parms->openx.in.search_attrs);
		SSVAL(req->out.vwv, VWV(5), parms->openx.in.file_attrs);
		raw_push_dos_date3(tree->session->transport, 
				  req->out.vwv, VWV(6), parms->openx.in.write_time);
		SSVAL(req->out.vwv, VWV(8), parms->openx.in.open_func);
		SIVAL(req->out.vwv, VWV(9), parms->openx.in.size);
		SIVAL(req->out.vwv, VWV(11),parms->openx.in.timeout);
		SIVAL(req->out.vwv, VWV(13),0); /* reserved */
		smbcli_req_append_string(req, parms->openx.in.fname, STR_TERMINATE);
		break;
		
	case RAW_OPEN_MKNEW:
		SETUP_REQUEST(SMBmknew, 3, 0);
		SSVAL(req->out.vwv, VWV(0), parms->mknew.in.attrib);
		raw_push_dos_date3(tree->session->transport, 
				  req->out.vwv, VWV(1), parms->mknew.in.write_time);
		smbcli_req_append_ascii4(req, parms->mknew.in.fname, STR_TERMINATE);
		break;

	case RAW_OPEN_CREATE:
		SETUP_REQUEST(SMBcreate, 3, 0);
		SSVAL(req->out.vwv, VWV(0), parms->create.in.attrib);
		raw_push_dos_date3(tree->session->transport, 
				  req->out.vwv, VWV(1), parms->create.in.write_time);
		smbcli_req_append_ascii4(req, parms->create.in.fname, STR_TERMINATE);
		break;
		
	case RAW_OPEN_CTEMP:
		SETUP_REQUEST(SMBctemp, 3, 0);
		SSVAL(req->out.vwv, VWV(0), parms->ctemp.in.attrib);
		raw_push_dos_date3(tree->session->transport, 
				  req->out.vwv, VWV(1), parms->ctemp.in.write_time);
		smbcli_req_append_ascii4(req, parms->ctemp.in.directory, STR_TERMINATE);
		break;
		
	case RAW_OPEN_SPLOPEN:
		SETUP_REQUEST(SMBsplopen, 2, 0);
		SSVAL(req->out.vwv, VWV(0), parms->splopen.in.setup_length);
		SSVAL(req->out.vwv, VWV(1), parms->splopen.in.mode);
		break;
		
	case RAW_OPEN_NTCREATEX:
		SETUP_REQUEST(SMBntcreateX, 24, 0);
		SSVAL(req->out.vwv, VWV(0),SMB_CHAIN_NONE);
		SSVAL(req->out.vwv, VWV(1),0);
		SCVAL(req->out.vwv, VWV(2),0); /* padding */
		SIVAL(req->out.vwv,  7, parms->ntcreatex.in.flags);
		SIVAL(req->out.vwv, 11, parms->ntcreatex.in.root_fid);
		SIVAL(req->out.vwv, 15, parms->ntcreatex.in.access_mask);
		SBVAL(req->out.vwv, 19, parms->ntcreatex.in.alloc_size);
		SIVAL(req->out.vwv, 27, parms->ntcreatex.in.file_attr);
		SIVAL(req->out.vwv, 31, parms->ntcreatex.in.share_access);
		SIVAL(req->out.vwv, 35, parms->ntcreatex.in.open_disposition);
		SIVAL(req->out.vwv, 39, parms->ntcreatex.in.create_options);
		SIVAL(req->out.vwv, 43, parms->ntcreatex.in.impersonation);
		SCVAL(req->out.vwv, 47, parms->ntcreatex.in.security_flags);
		
		smbcli_req_append_string_len(req, parms->ntcreatex.in.fname, STR_TERMINATE, &len);
		SSVAL(req->out.vwv, 5, len);
		break;

	case RAW_OPEN_NTTRANS_CREATE:
		return smb_raw_nttrans_create_send(tree, parms);


	case RAW_OPEN_OPENX_READX:
		SETUP_REQUEST(SMBopenX, 15, 0);
		SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
		SSVAL(req->out.vwv, VWV(1), 0);
		SSVAL(req->out.vwv, VWV(2), parms->openxreadx.in.flags);
		SSVAL(req->out.vwv, VWV(3), parms->openxreadx.in.open_mode);
		SSVAL(req->out.vwv, VWV(4), parms->openxreadx.in.search_attrs);
		SSVAL(req->out.vwv, VWV(5), parms->openxreadx.in.file_attrs);
		raw_push_dos_date3(tree->session->transport, 
				  req->out.vwv, VWV(6), parms->openxreadx.in.write_time);
		SSVAL(req->out.vwv, VWV(8), parms->openxreadx.in.open_func);
		SIVAL(req->out.vwv, VWV(9), parms->openxreadx.in.size);
		SIVAL(req->out.vwv, VWV(11),parms->openxreadx.in.timeout);
		SIVAL(req->out.vwv, VWV(13),0);
		smbcli_req_append_string(req, parms->openxreadx.in.fname, STR_TERMINATE);

		if (tree->session->transport->negotiate.capabilities & CAP_LARGE_FILES) {
			bigoffset = true;
		}

		smbcli_chained_request_setup(req, SMBreadX, bigoffset ? 12 : 10, 0);

		SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
		SSVAL(req->out.vwv, VWV(1), 0);
		SSVAL(req->out.vwv, VWV(2), 0);
		SIVAL(req->out.vwv, VWV(3), parms->openxreadx.in.offset);
		SSVAL(req->out.vwv, VWV(5), parms->openxreadx.in.maxcnt & 0xFFFF);
		SSVAL(req->out.vwv, VWV(6), parms->openxreadx.in.mincnt);
		SIVAL(req->out.vwv, VWV(7), parms->openxreadx.in.maxcnt >> 16);
		SSVAL(req->out.vwv, VWV(9), parms->openxreadx.in.remaining);
		if (bigoffset) {
			SIVAL(req->out.vwv, VWV(10),parms->openxreadx.in.offset>>32);
		}
		break;
	case RAW_OPEN_SMB2:
		return NULL;
	}

	if (!smbcli_request_send(req)) {
		smbcli_request_destroy(req);
		return NULL;
	}

	return req;
}

/****************************************************************************
 Open a file - async recv
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_open_recv(struct smbcli_request *req, TALLOC_CTX *mem_ctx, union smb_open *parms)
{
	NTSTATUS status;

	if (!smbcli_request_receive(req) ||
	    smbcli_request_is_error(req)) {
		goto failed;
	}

	switch (parms->openold.level) {
	case RAW_OPEN_T2OPEN:
		return smb_raw_t2open_recv(req, mem_ctx, parms);

	case RAW_OPEN_OPEN:
		SMBCLI_CHECK_WCT(req, 7);
		parms->openold.out.file.fnum = SVAL(req->in.vwv, VWV(0));
		parms->openold.out.attrib = SVAL(req->in.vwv, VWV(1));
		parms->openold.out.write_time = raw_pull_dos_date3(req->transport,
								req->in.vwv + VWV(2));
		parms->openold.out.size = IVAL(req->in.vwv, VWV(4));
		parms->openold.out.rmode = SVAL(req->in.vwv, VWV(6));
		break;

	case RAW_OPEN_OPENX:
		SMBCLI_CHECK_MIN_WCT(req, 15);
		parms->openx.out.file.fnum = SVAL(req->in.vwv, VWV(2));
		parms->openx.out.attrib = SVAL(req->in.vwv, VWV(3));
		parms->openx.out.write_time = raw_pull_dos_date3(req->transport,
								 req->in.vwv + VWV(4));
		parms->openx.out.size = IVAL(req->in.vwv, VWV(6));
		parms->openx.out.access = SVAL(req->in.vwv, VWV(8));
		parms->openx.out.ftype = SVAL(req->in.vwv, VWV(9));
		parms->openx.out.devstate = SVAL(req->in.vwv, VWV(10));
		parms->openx.out.action = SVAL(req->in.vwv, VWV(11));
		parms->openx.out.unique_fid = IVAL(req->in.vwv, VWV(12));
		if (req->in.wct >= 19) {
			parms->openx.out.access_mask = IVAL(req->in.vwv, VWV(15));
			parms->openx.out.unknown =     IVAL(req->in.vwv, VWV(17));
		} else {
			parms->openx.out.access_mask = 0;
			parms->openx.out.unknown = 0;
		}
		break;

	case RAW_OPEN_MKNEW:
		SMBCLI_CHECK_WCT(req, 1);
		parms->mknew.out.file.fnum = SVAL(req->in.vwv, VWV(0));
		break;

	case RAW_OPEN_CREATE:
		SMBCLI_CHECK_WCT(req, 1);
		parms->create.out.file.fnum = SVAL(req->in.vwv, VWV(0));
		break;

	case RAW_OPEN_CTEMP:
		SMBCLI_CHECK_WCT(req, 1);
		parms->ctemp.out.file.fnum = SVAL(req->in.vwv, VWV(0));
		smbcli_req_pull_string(&req->in.bufinfo, mem_ctx, &parms->ctemp.out.name, req->in.data, -1, STR_TERMINATE | STR_ASCII);
		break;

	case RAW_OPEN_SPLOPEN:
		SMBCLI_CHECK_WCT(req, 1);
		parms->splopen.out.file.fnum = SVAL(req->in.vwv, VWV(0));
		break;

	case RAW_OPEN_NTCREATEX:
		SMBCLI_CHECK_MIN_WCT(req, 34);
		parms->ntcreatex.out.oplock_level =              CVAL(req->in.vwv, 4);
		parms->ntcreatex.out.file.fnum =                 SVAL(req->in.vwv, 5);
		parms->ntcreatex.out.create_action =             IVAL(req->in.vwv, 7);
		parms->ntcreatex.out.create_time =   smbcli_pull_nttime(req->in.vwv, 11);
		parms->ntcreatex.out.access_time =   smbcli_pull_nttime(req->in.vwv, 19);
		parms->ntcreatex.out.write_time =    smbcli_pull_nttime(req->in.vwv, 27);
		parms->ntcreatex.out.change_time =   smbcli_pull_nttime(req->in.vwv, 35);
		parms->ntcreatex.out.attrib =                   IVAL(req->in.vwv, 43);
		parms->ntcreatex.out.alloc_size =               BVAL(req->in.vwv, 47);
		parms->ntcreatex.out.size =                     BVAL(req->in.vwv, 55);
		parms->ntcreatex.out.file_type =                SVAL(req->in.vwv, 63);
		parms->ntcreatex.out.ipc_state =                SVAL(req->in.vwv, 65);
		parms->ntcreatex.out.is_directory =             CVAL(req->in.vwv, 67);
		break;

	case RAW_OPEN_NTTRANS_CREATE:
		return smb_raw_nttrans_create_recv(req, mem_ctx, parms);

	case RAW_OPEN_OPENX_READX:
		SMBCLI_CHECK_MIN_WCT(req, 15);
		parms->openxreadx.out.file.fnum = SVAL(req->in.vwv, VWV(2));
		parms->openxreadx.out.attrib = SVAL(req->in.vwv, VWV(3));
		parms->openxreadx.out.write_time = raw_pull_dos_date3(req->transport,
								 req->in.vwv + VWV(4));
		parms->openxreadx.out.size = IVAL(req->in.vwv, VWV(6));
		parms->openxreadx.out.access = SVAL(req->in.vwv, VWV(8));
		parms->openxreadx.out.ftype = SVAL(req->in.vwv, VWV(9));
		parms->openxreadx.out.devstate = SVAL(req->in.vwv, VWV(10));
		parms->openxreadx.out.action = SVAL(req->in.vwv, VWV(11));
		parms->openxreadx.out.unique_fid = IVAL(req->in.vwv, VWV(12));
		if (req->in.wct >= 19) {
			parms->openxreadx.out.access_mask = IVAL(req->in.vwv, VWV(15));
			parms->openxreadx.out.unknown =     IVAL(req->in.vwv, VWV(17));
		} else {
			parms->openxreadx.out.access_mask = 0;
			parms->openxreadx.out.unknown = 0;
		}

		status = smbcli_chained_advance(req);
		if (!NT_STATUS_IS_OK(status)) {
			return status;
		}

		SMBCLI_CHECK_WCT(req, 12);
		parms->openxreadx.out.remaining       = SVAL(req->in.vwv, VWV(2));
		parms->openxreadx.out.compaction_mode = SVAL(req->in.vwv, VWV(3));
		parms->openxreadx.out.nread = SVAL(req->in.vwv, VWV(5));
		if (parms->openxreadx.out.nread > 
		    MAX(parms->openxreadx.in.mincnt, parms->openxreadx.in.maxcnt) ||
		    !smbcli_raw_pull_data(&req->in.bufinfo, req->in.hdr + SVAL(req->in.vwv, VWV(6)), 
					  parms->openxreadx.out.nread, 
					  parms->openxreadx.out.data)) {
			req->status = NT_STATUS_BUFFER_TOO_SMALL;
		}
		break;
	case RAW_OPEN_SMB2:
		req->status = NT_STATUS_INTERNAL_ERROR;
		break;
	}

failed:
	return smbcli_request_destroy(req);
}


/****************************************************************************
 Open a file - sync interface
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_open(struct smbcli_tree *tree, TALLOC_CTX *mem_ctx, union smb_open *parms)
{
	struct smbcli_request *req = smb_raw_open_send(tree, parms);
	return smb_raw_open_recv(req, mem_ctx, parms);
}


/****************************************************************************
 Close a file - async send
****************************************************************************/
_PUBLIC_ struct smbcli_request *smb_raw_close_send(struct smbcli_tree *tree, union smb_close *parms)
{
	struct smbcli_request *req = NULL; 

	switch (parms->generic.level) {
	case RAW_CLOSE_CLOSE:
		SETUP_REQUEST(SMBclose, 3, 0);
		SSVAL(req->out.vwv, VWV(0), parms->close.in.file.fnum);
		raw_push_dos_date3(tree->session->transport, 
				  req->out.vwv, VWV(1), parms->close.in.write_time);
		break;

	case RAW_CLOSE_SPLCLOSE:
		SETUP_REQUEST(SMBsplclose, 3, 0);
		SSVAL(req->out.vwv, VWV(0), parms->splclose.in.file.fnum);
		SIVAL(req->out.vwv, VWV(1), 0); /* reserved */
		break;

	case RAW_CLOSE_SMB2:
		return NULL;
	}

	if (!req) return NULL;

	if (!smbcli_request_send(req)) {
		smbcli_request_destroy(req);
		return NULL;
	}

	return req;
}


/****************************************************************************
 Close a file - sync interface
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_close(struct smbcli_tree *tree, union smb_close *parms)
{
	struct smbcli_request *req = smb_raw_close_send(tree, parms);
	return smbcli_request_simple_recv(req);
}


/****************************************************************************
 Locking calls - async interface
****************************************************************************/
struct smbcli_request *smb_raw_lock_send(struct smbcli_tree *tree, union smb_lock *parms)
{
	struct smbcli_request *req = NULL; 

	switch (parms->generic.level) {
	case RAW_LOCK_LOCK:
		SETUP_REQUEST(SMBlock, 5, 0);
		SSVAL(req->out.vwv, VWV(0), parms->lock.in.file.fnum);
		SIVAL(req->out.vwv, VWV(1), parms->lock.in.count);
		SIVAL(req->out.vwv, VWV(3), parms->lock.in.offset);
		break;
		
	case RAW_LOCK_UNLOCK:
		SETUP_REQUEST(SMBunlock, 5, 0);
		SSVAL(req->out.vwv, VWV(0), parms->unlock.in.file.fnum);
		SIVAL(req->out.vwv, VWV(1), parms->unlock.in.count);
		SIVAL(req->out.vwv, VWV(3), parms->unlock.in.offset);
		break;
		
	case RAW_LOCK_LOCKX: {
		struct smb_lock_entry *lockp;
		uint_t lck_size = (parms->lockx.in.mode & LOCKING_ANDX_LARGE_FILES)? 20 : 10;
		uint_t lock_count = parms->lockx.in.ulock_cnt + parms->lockx.in.lock_cnt;
		int i;

		SETUP_REQUEST(SMBlockingX, 8, lck_size * lock_count);
		SSVAL(req->out.vwv, VWV(0), SMB_CHAIN_NONE);
		SSVAL(req->out.vwv, VWV(1), 0);
		SSVAL(req->out.vwv, VWV(2), parms->lockx.in.file.fnum);
		SSVAL(req->out.vwv, VWV(3), parms->lockx.in.mode);
		SIVAL(req->out.vwv, VWV(4), parms->lockx.in.timeout);
		SSVAL(req->out.vwv, VWV(6), parms->lockx.in.ulock_cnt);
		SSVAL(req->out.vwv, VWV(7), parms->lockx.in.lock_cnt);
		
		/* copy in all the locks */
		lockp = &parms->lockx.in.locks[0];
		for (i = 0; i < lock_count; i++) {
			uint8_t *p = req->out.data + lck_size * i;
			SSVAL(p, 0, lockp[i].pid);
			if (parms->lockx.in.mode & LOCKING_ANDX_LARGE_FILES) {
				SSVAL(p,  2, 0); /* reserved */
				SIVAL(p,  4, lockp[i].offset>>32);
				SIVAL(p,  8, lockp[i].offset);
				SIVAL(p, 12, lockp[i].count>>32);
				SIVAL(p, 16, lockp[i].count);
			} else {
				SIVAL(p, 2, lockp[i].offset);
				SIVAL(p, 6, lockp[i].count);
			}
		}	
		break;
	}
	case RAW_LOCK_SMB2:
		return NULL;
	}

	if (!smbcli_request_send(req)) {
		smbcli_request_destroy(req);
		return NULL;
	}

	return req;
}

/****************************************************************************
 Locking calls - sync interface
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_lock(struct smbcli_tree *tree, union smb_lock *parms)
{
	struct smbcli_request *req = smb_raw_lock_send(tree, parms);
	return smbcli_request_simple_recv(req);
}
	

/****************************************************************************
 Check for existence of a dir - async send
****************************************************************************/
struct smbcli_request *smb_raw_chkpath_send(struct smbcli_tree *tree, union smb_chkpath *parms)
{
	struct smbcli_request *req; 

	SETUP_REQUEST(SMBchkpth, 0, 0);

	smbcli_req_append_ascii4(req, parms->chkpath.in.path, STR_TERMINATE);

	if (!smbcli_request_send(req)) {
		smbcli_request_destroy(req);
		return NULL;
	}

	return req;
}

/****************************************************************************
 Check for existence of a dir - sync interface
****************************************************************************/
NTSTATUS smb_raw_chkpath(struct smbcli_tree *tree, union smb_chkpath *parms)
{
	struct smbcli_request *req = smb_raw_chkpath_send(tree, parms);
	return smbcli_request_simple_recv(req);
}

/****************************************************************************
 flush a file - async send
 a flush with RAW_FLUSH_ALL will flush all files
****************************************************************************/
struct smbcli_request *smb_raw_flush_send(struct smbcli_tree *tree, union smb_flush *parms)
{
	struct smbcli_request *req; 
	uint16_t fnum=0;

	switch (parms->generic.level) {
	case RAW_FLUSH_FLUSH:
		fnum = parms->flush.in.file.fnum;
		break;
	case RAW_FLUSH_ALL:
		fnum = 0xFFFF;
		break;
	case RAW_FLUSH_SMB2:
		return NULL;
	}

	SETUP_REQUEST(SMBflush, 1, 0);
	SSVAL(req->out.vwv, VWV(0), fnum);

	if (!smbcli_request_send(req)) {
		smbcli_request_destroy(req);
		return NULL;
	}

	return req;
}


/****************************************************************************
 flush a file - sync interface
****************************************************************************/
_PUBLIC_ NTSTATUS smb_raw_flush(struct smbcli_tree *tree, union smb_flush *parms)
{
	struct smbcli_request *req = smb_raw_flush_send(tree, parms);
	return smbcli_request_simple_recv(req);
}


/****************************************************************************
 seek a file - async send
****************************************************************************/
struct smbcli_request *smb_raw_seek_send(struct smbcli_tree *tree,
					 union smb_seek *parms)
{
	struct smbcli_request *req; 

	SETUP_REQUEST(SMBlseek, 4, 0);

	SSVAL(req->out.vwv, VWV(0), parms->lseek.in.file.fnum);
	SSVAL(req->out.vwv, VWV(1), parms->lseek.in.mode);
	SIVALS(req->out.vwv, VWV(2), parms->lseek.in.offset);

	if (!smbcli_request_send(req)) {
		smbcli_request_destroy(req);
		return NULL;
	}
	return req;
}

/****************************************************************************
 seek a file - async receive
****************************************************************************/
NTSTATUS smb_raw_seek_recv(struct smbcli_request *req,
			   union smb_seek *parms)
{
	if (!smbcli_request_receive(req) ||
	    smbcli_request_is_error(req)) {
		return smbcli_request_destroy(req);
	}

	SMBCLI_CHECK_WCT(req, 2);	
	parms->lseek.out.offset = IVAL(req->in.vwv, VWV(0));

failed:	
	return smbcli_request_destroy(req);
}

/*
  seek a file - sync interface
*/
_PUBLIC_ NTSTATUS smb_raw_seek(struct smbcli_tree *tree,
		      union smb_seek *parms)
{
	struct smbcli_request *req = smb_raw_seek_send(tree, parms);
	return smb_raw_seek_recv(req, parms);
}
