/* 
   Unix SMB/CIFS implementation.
   client file operations
   Copyright (C) Andrew Tridgell 1994-1998
   Copyright (C) Jeremy Allison 2001-2009

   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 "system/filesys.h"
#include "libsmb/libsmb.h"
#include "../lib/util/tevent_ntstatus.h"
#include "async_smb.h"
#include "libsmb/clirap.h"
#include "trans2.h"
#include "ntioctl.h"
#include "libcli/security/security.h"
#include "../libcli/smb/smbXcli_base.h"

struct cli_setpathinfo_state {
	uint16_t setup;
	uint8_t *param;
};

static void cli_setpathinfo_done(struct tevent_req *subreq);

struct tevent_req *cli_setpathinfo_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					uint16_t level,
					const char *path,
					uint8_t *data,
					size_t data_len)
{
	struct tevent_req *req, *subreq;
	struct cli_setpathinfo_state *state;
	uint16_t additional_flags2 = 0;

	req = tevent_req_create(mem_ctx, &state,
				struct cli_setpathinfo_state);
	if (req == NULL) {
		return NULL;
	}

	/* Setup setup word. */
	SSVAL(&state->setup, 0, TRANSACT2_SETPATHINFO);

	/* Setup param array. */
	state->param = talloc_zero_array(state, uint8_t, 6);
	if (tevent_req_nomem(state->param, req)) {
		return tevent_req_post(req, ev);
	}
	SSVAL(state->param, 0, level);

	state->param = trans2_bytes_push_str(
		state->param, smbXcli_conn_use_unicode(cli->conn), path, strlen(path)+1, NULL);
	if (tevent_req_nomem(state->param, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(path, NULL, NULL, NULL) &&
			!INFO_LEVEL_IS_UNIX(level)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	subreq = cli_trans_send(
		state,			/* mem ctx. */
		ev,			/* event ctx. */
		cli,			/* cli_state. */
		additional_flags2,	/* additional_flags2 */
		SMBtrans2,		/* cmd. */
		NULL,			/* pipe name. */
		-1,			/* fid. */
		0,			/* function. */
		0,			/* flags. */
		&state->setup,		/* setup. */
		1,			/* num setup uint16_t words. */
		0,			/* max returned setup. */
		state->param,		/* param. */
		talloc_get_size(state->param),	/* num param. */
		2,			/* max returned param. */
		data,			/* data. */
		data_len,		/* num data. */
		0);			/* max returned data. */

	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_setpathinfo_done, req);
	return req;
}

static void cli_setpathinfo_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_trans_recv(subreq, NULL, NULL, NULL, 0, NULL,
					 NULL, 0, NULL, NULL, 0, NULL);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_setpathinfo_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_setpathinfo(struct cli_state *cli,
			 uint16_t level,
			 const char *path,
			 uint8_t *data,
			 size_t data_len)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_setpathinfo_send(ev, ev, cli, level, path, data, data_len);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_setpathinfo_recv(req);
 fail:
	TALLOC_FREE(frame);
	return status;
}

struct cli_setfileinfo_state {
	uint16_t setup;
	uint8_t param[6];
};

static void cli_setfileinfo_done(struct tevent_req *subreq);

struct tevent_req *cli_setfileinfo_send(
	TALLOC_CTX *mem_ctx,
	struct tevent_context *ev,
	struct cli_state *cli,
	uint16_t fnum,
	uint16_t level,
	uint8_t *data,
	size_t data_len)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_setfileinfo_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state, struct cli_setfileinfo_state);
	if (req == NULL) {
		return NULL;
	}
	PUSH_LE_U16(&state->setup, 0, TRANSACT2_SETFILEINFO);

	PUSH_LE_U16(state->param, 0, fnum);
	PUSH_LE_U16(state->param, 2, level);

	subreq = cli_trans_send(state,		/* mem ctx. */
				ev,		/* event ctx. */
				cli,		/* cli_state. */
				0,		/* additional_flags2 */
				SMBtrans2,	/* cmd. */
				NULL,		/* pipe name. */
				-1,		/* fid. */
				0,		/* function. */
				0,		/* flags. */
				&state->setup,	/* setup. */
				1,		/* num setup uint16_t words. */
				0,		/* max returned setup. */
				state->param,	/* param. */
				6,		/* num param. */
				2,		/* max returned param. */
				data,		/* data. */
				data_len,	/* num data. */
				0);		/* max returned data. */

	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_setfileinfo_done, req);
	return req;
}

static void cli_setfileinfo_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_trans_recv(
		subreq,		/* req */
		NULL,		/* mem_ctx */
		NULL,		/* recv_flags2 */
		NULL,		/* setup */
		0,		/* min_setup */
		NULL,		/* num_setup */
		NULL,		/* param */
		0,		/* min_param */
		NULL,		/* num_param */
		NULL,		/* data */
		0,		/* min_data */
		NULL);		/* num_data */
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_setfileinfo_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

/****************************************************************************
 Hard/Symlink a file (UNIX extensions).
 Creates new name (sym)linked to link_target.
****************************************************************************/

struct cli_posix_link_internal_state {
	uint8_t *data;
};

static void cli_posix_link_internal_done(struct tevent_req *subreq);

static struct tevent_req *cli_posix_link_internal_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					uint16_t level,
					const char *link_target,
					const char *newname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_link_internal_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state,
				struct cli_posix_link_internal_state);
	if (req == NULL) {
		return NULL;
	}

	/* Setup data array. */
	state->data = talloc_array(state, uint8_t, 0);
	if (tevent_req_nomem(state->data, req)) {
		return tevent_req_post(req, ev);
	}
	state->data = trans2_bytes_push_str(
		state->data, smbXcli_conn_use_unicode(cli->conn),
		link_target, strlen(link_target)+1, NULL);

	subreq = cli_setpathinfo_send(
		state, ev, cli, level, newname,
		state->data, talloc_get_size(state->data));
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_link_internal_done, req);
	return req;
}

static void cli_posix_link_internal_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_setpathinfo_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static NTSTATUS cli_posix_link_internal_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

/****************************************************************************
 Symlink a file (UNIX extensions).
****************************************************************************/

struct cli_posix_symlink_state {
	uint8_t dummy;
};

static void cli_posix_symlink_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_symlink_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *link_target,
					const char *newname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_symlink_state *state = NULL;

	req = tevent_req_create(
		mem_ctx, &state, struct cli_posix_symlink_state);
	if (req == NULL) {
		return NULL;
	}

	subreq = cli_posix_link_internal_send(
		mem_ctx, ev, cli, SMB_SET_FILE_UNIX_LINK, link_target, newname);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_symlink_done, req);
	return req;
}

static void cli_posix_symlink_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_posix_link_internal_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_posix_symlink_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_posix_symlink(struct cli_state *cli,
			const char *link_target,
			const char *newname)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_symlink_send(frame,
				ev,
				cli,
				link_target,
				newname);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_symlink_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Read a POSIX symlink.
****************************************************************************/

struct cli_posix_readlink_state {
	struct cli_state *cli;
	char *converted;
};

static void cli_posix_readlink_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_readlink_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_readlink_state *state = NULL;

	req = tevent_req_create(
		mem_ctx, &state, struct cli_posix_readlink_state);
	if (req == NULL) {
		return NULL;
	}
	state->cli = cli;

	subreq = cli_qpathinfo_send(
		state,
		ev,
		cli,
		fname,
		SMB_QUERY_FILE_UNIX_LINK,
		1,
		UINT16_MAX);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_readlink_done, req);
	return req;
}

static void cli_posix_readlink_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_posix_readlink_state *state = tevent_req_data(
		req, struct cli_posix_readlink_state);
	NTSTATUS status;
	uint8_t *data = NULL;
	uint32_t num_data = 0;
	charset_t charset;
	size_t converted_size;
	bool ok;

	status = cli_qpathinfo_recv(subreq, state, &data, &num_data);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	/*
	 * num_data is > 1, we've given 1 as minimum to cli_qpathinfo_send
	 */
	if (data == NULL || data[num_data-1] != '\0') {
		tevent_req_nterror(req, NT_STATUS_DATA_ERROR);
		return;
	}

	charset = smbXcli_conn_use_unicode(state->cli->conn) ?
		CH_UTF16LE : CH_DOS;

	/* The returned data is a pushed string, not raw data. */
	ok = convert_string_talloc(
		state,
		charset,
		CH_UNIX,
		data,
		num_data,
		&state->converted,
		&converted_size);
	if (!ok) {
		tevent_req_oom(req);
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_posix_readlink_recv(
	struct tevent_req *req, TALLOC_CTX *mem_ctx, char **target)
{
	struct cli_posix_readlink_state *state = tevent_req_data(
		req, struct cli_posix_readlink_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	*target = talloc_move(mem_ctx, &state->converted);
	tevent_req_received(req);
	return NT_STATUS_OK;
}

NTSTATUS cli_posix_readlink(
	struct cli_state *cli,
	const char *fname,
	TALLOC_CTX *mem_ctx,
	char **target)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_readlink_send(frame, ev, cli, fname);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_readlink_recv(req, mem_ctx, target);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Hard link a file (UNIX extensions).
****************************************************************************/

struct cli_posix_hardlink_state {
	uint8_t dummy;
};

static void cli_posix_hardlink_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_hardlink_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *oldname,
					const char *newname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_hardlink_state *state = NULL;

	req = tevent_req_create(
		mem_ctx, &state, struct cli_posix_hardlink_state);
	if (req == NULL) {
		return NULL;
	}

	subreq = cli_posix_link_internal_send(
		state, ev, cli, SMB_SET_FILE_UNIX_HLINK, oldname, newname);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_hardlink_done, req);
	return req;
}

static void cli_posix_hardlink_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_posix_link_internal_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_posix_hardlink_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_posix_hardlink(struct cli_state *cli,
			const char *oldname,
			const char *newname)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_hardlink_send(frame,
				ev,
				cli,
				oldname,
				newname);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_hardlink_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Do a POSIX getacl - pathname based ACL get (UNIX extensions).
****************************************************************************/

struct getacl_state {
	uint32_t num_data;
	uint8_t *data;
};

static void cli_posix_getacl_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_getacl_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct getacl_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state, struct getacl_state);
	if (req == NULL) {
		return NULL;
	}
	subreq = cli_qpathinfo_send(state, ev, cli, fname, SMB_QUERY_POSIX_ACL,
				    0, CLI_BUFFER_SIZE);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_getacl_done, req);
	return req;
}

static void cli_posix_getacl_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct getacl_state *state = tevent_req_data(
		req, struct getacl_state);
	NTSTATUS status;

	status = cli_qpathinfo_recv(subreq, state, &state->data,
				    &state->num_data);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_posix_getacl_recv(struct tevent_req *req,
				TALLOC_CTX *mem_ctx,
				size_t *prb_size,
				char **retbuf)
{
	struct getacl_state *state = tevent_req_data(req, struct getacl_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	*prb_size = (size_t)state->num_data;
	*retbuf = (char *)talloc_move(mem_ctx, &state->data);
	return NT_STATUS_OK;
}

NTSTATUS cli_posix_getacl(struct cli_state *cli,
			const char *fname,
			TALLOC_CTX *mem_ctx,
			size_t *prb_size,
			char **retbuf)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_getacl_send(frame,
				ev,
				cli,
				fname);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_getacl_recv(req, mem_ctx, prb_size, retbuf);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Do a POSIX setacl - pathname based ACL set (UNIX extensions).
****************************************************************************/

struct setacl_state {
	uint8_t *data;
};

static void cli_posix_setacl_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_setacl_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname,
					const void *data,
					size_t num_data)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct setacl_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state, struct setacl_state);
	if (req == NULL) {
		return NULL;
	}
	state->data = talloc_memdup(state, data, num_data);
	if (tevent_req_nomem(state->data, req)) {
		return tevent_req_post(req, ev);
	}

	subreq = cli_setpathinfo_send(state,
				ev,
				cli,
				SMB_SET_POSIX_ACL,
				fname,
				state->data,
				num_data);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_setacl_done, req);
	return req;
}

static void cli_posix_setacl_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_setpathinfo_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_posix_setacl_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_posix_setacl(struct cli_state *cli,
			const char *fname,
			const void *acl_buf,
			size_t acl_buf_size)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_setacl_send(frame,
				ev,
				cli,
				fname,
				acl_buf,
				acl_buf_size);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_setacl_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Stat a file (UNIX extensions).
****************************************************************************/

struct stat_state {
	SMB_STRUCT_STAT *sbuf;
};

static void cli_posix_stat_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_stat_send(TALLOC_CTX *mem_ctx,
				       struct tevent_context *ev,
				       struct cli_state *cli,
				       const char *fname,
				       SMB_STRUCT_STAT *sbuf)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct stat_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state, struct stat_state);
	if (req == NULL) {
		return NULL;
	}
	state->sbuf = sbuf;

	subreq = cli_qpathinfo_send(state, ev, cli, fname,
				    SMB_QUERY_FILE_UNIX_BASIC, 100, 100);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_stat_done, req);
	return req;
}

static void cli_posix_stat_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
				subreq, struct tevent_req);
	struct stat_state *state = tevent_req_data(req, struct stat_state);
	SMB_STRUCT_STAT *sbuf = state->sbuf;
	uint8_t *data;
	uint32_t num_data = 0;
	NTSTATUS status;

	status = cli_qpathinfo_recv(subreq, state, &data, &num_data);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}

	if (num_data != 100) {
		/*
		 * Paranoia, cli_qpathinfo should have guaranteed
		 * this, but you never know...
		 */
		tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
		return;
	}

	*sbuf = (SMB_STRUCT_STAT) { 0 };

	/* total size, in bytes */
	sbuf->st_ex_size = IVAL2_TO_SMB_BIG_UINT(data, 0);

	/* number of blocks allocated */
	sbuf->st_ex_blocks = IVAL2_TO_SMB_BIG_UINT(data,8);
#if defined (HAVE_STAT_ST_BLOCKS) && defined(STAT_ST_BLOCKSIZE)
	sbuf->st_ex_blocks /= STAT_ST_BLOCKSIZE;
#else
	/* assume 512 byte blocks */
	sbuf->st_ex_blocks /= 512;
#endif
	/* time of last change */
	sbuf->st_ex_ctime = interpret_long_date((char *)(data + 16));

	/* time of last access */
	sbuf->st_ex_atime = interpret_long_date((char *)(data + 24));

	/* time of last modification */
	sbuf->st_ex_mtime = interpret_long_date((char *)(data + 32));

	sbuf->st_ex_uid = (uid_t) IVAL(data, 40); /* user ID of owner */
	sbuf->st_ex_gid = (gid_t) IVAL(data, 48); /* group ID of owner */
	sbuf->st_ex_mode = unix_filetype_from_wire(IVAL(data, 56));

#if defined(HAVE_MAKEDEV)
	{
		uint32_t dev_major = IVAL(data,60);
		uint32_t dev_minor = IVAL(data,68);
		sbuf->st_ex_rdev = makedev(dev_major, dev_minor);
	}
#endif
	/* inode */
	sbuf->st_ex_ino = (SMB_INO_T)IVAL2_TO_SMB_BIG_UINT(data, 76);

	/* protection */
	sbuf->st_ex_mode |= wire_perms_to_unix(IVAL(data, 84));

	/* number of hard links */
	sbuf->st_ex_nlink = BIG_UINT(data, 92);

	tevent_req_done(req);
}

NTSTATUS cli_posix_stat_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_posix_stat(struct cli_state *cli,
			const char *fname,
			SMB_STRUCT_STAT *sbuf)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_stat_send(frame, ev, cli, fname, sbuf);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_stat_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Chmod or chown a file internal (UNIX extensions).
****************************************************************************/

struct cli_posix_chown_chmod_internal_state {
	uint8_t data[100];
};

static void cli_posix_chown_chmod_internal_done(struct tevent_req *subreq);

static struct tevent_req *cli_posix_chown_chmod_internal_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname,
					uint32_t mode,
					uint32_t uid,
					uint32_t gid)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_chown_chmod_internal_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state,
				struct cli_posix_chown_chmod_internal_state);
	if (req == NULL) {
		return NULL;
	}

	memset(state->data, 0xff, 40); /* Set all sizes/times to no change. */
	memset(&state->data[40], '\0', 60);
	SIVAL(state->data,40,uid);
	SIVAL(state->data,48,gid);
	SIVAL(state->data,84,mode);

	subreq = cli_setpathinfo_send(state, ev, cli, SMB_SET_FILE_UNIX_BASIC,
				      fname, state->data, sizeof(state->data));
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_chown_chmod_internal_done,
				req);
	return req;
}

static void cli_posix_chown_chmod_internal_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_setpathinfo_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static NTSTATUS cli_posix_chown_chmod_internal_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

/****************************************************************************
 chmod a file (UNIX extensions).
****************************************************************************/

struct cli_posix_chmod_state {
	uint8_t dummy;
};

static void cli_posix_chmod_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_chmod_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname,
					mode_t mode)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_chmod_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state, struct cli_posix_chmod_state);
	if (req == NULL) {
		return NULL;
	}

	subreq = cli_posix_chown_chmod_internal_send(
		state,
		ev,
		cli,
		fname,
		unix_perms_to_wire(mode),
		SMB_UID_NO_CHANGE,
		SMB_GID_NO_CHANGE);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_chmod_done, req);
	return req;
}

static void cli_posix_chmod_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_posix_chown_chmod_internal_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_posix_chmod_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_posix_chmod(struct cli_state *cli, const char *fname, mode_t mode)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_chmod_send(frame,
				ev,
				cli,
				fname,
				mode);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_chmod_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 chown a file (UNIX extensions).
****************************************************************************/

struct cli_posix_chown_state {
	uint8_t dummy;
};

static void cli_posix_chown_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_chown_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname,
					uid_t uid,
					gid_t gid)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_chown_state *state = NULL;

	req = tevent_req_create(
		mem_ctx, &state, struct cli_posix_chown_state);
	if (req == NULL) {
		return NULL;
	}

	subreq = cli_posix_chown_chmod_internal_send(
		state,
		ev,
		cli,
		fname,
		SMB_MODE_NO_CHANGE,
		(uint32_t)uid,
		(uint32_t)gid);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_chown_done, req);
	return req;
}

static void cli_posix_chown_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_posix_chown_chmod_internal_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_posix_chown_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_posix_chown(struct cli_state *cli,
			const char *fname,
			uid_t uid,
			gid_t gid)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_chown_send(frame,
				ev,
				cli,
				fname,
				uid,
				gid);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_chown_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Rename a file.
****************************************************************************/

struct cli_smb1_rename_state {
	uint8_t *data;
};

static void cli_smb1_rename_done(struct tevent_req *subreq);

static struct tevent_req *cli_smb1_rename_send(TALLOC_CTX *mem_ctx,
					       struct tevent_context *ev,
					       struct cli_state *cli,
					       const char *fname_src,
					       const char *fname_dst,
					       bool replace)
{
	NTSTATUS status;
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_smb1_rename_state *state = NULL;
	smb_ucs2_t *converted_str = NULL;
	size_t converted_size_bytes = 0;

	req = tevent_req_create(mem_ctx, &state, struct cli_smb1_rename_state);
	if (req == NULL) {
		return NULL;
	}

	/*
	 * Strip a MSDFS path from fname_dst if we were given one.
	 */
	status = cli_dfs_target_check(state,
				cli,
				fname_src,
				fname_dst,
				&fname_dst);
	if (!NT_STATUS_IS_OK(status)) {
		goto fail;
	}

	if (!push_ucs2_talloc(talloc_tos(), &converted_str, fname_dst,
			      &converted_size_bytes)) {
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	/* W2K8 insists the dest name is not null
	   terminated. Remove the last 2 zero bytes
	   and reduce the name length. */

	if (converted_size_bytes < 2) {
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	converted_size_bytes -= 2;

	state->data =
	    talloc_zero_array(state, uint8_t, 12 + converted_size_bytes);
	if (state->data == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (replace) {
		SCVAL(state->data, 0, 1);
	}

	SIVAL(state->data, 8, converted_size_bytes);
	memcpy(state->data + 12, converted_str, converted_size_bytes);

	TALLOC_FREE(converted_str);

	subreq = cli_setpathinfo_send(
	    state, ev, cli, SMB_FILE_RENAME_INFORMATION, fname_src, state->data,
	    talloc_get_size(state->data));
	if (tevent_req_nomem(subreq, req)) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}
	tevent_req_set_callback(subreq, cli_smb1_rename_done, req);
	return req;

fail:
	TALLOC_FREE(converted_str);
	tevent_req_nterror(req, status);
	return tevent_req_post(req, ev);
}

static void cli_smb1_rename_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_setpathinfo_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static NTSTATUS cli_smb1_rename_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

static void cli_cifs_rename_done(struct tevent_req *subreq);

struct cli_cifs_rename_state {
	uint16_t vwv[1];
};

static struct tevent_req *cli_cifs_rename_send(TALLOC_CTX *mem_ctx,
					       struct tevent_context *ev,
					       struct cli_state *cli,
					       const char *fname_src,
					       const char *fname_dst,
					       bool replace)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_cifs_rename_state *state = NULL;
	uint8_t additional_flags = 0;
	uint16_t additional_flags2 = 0;
	uint8_t *bytes = NULL;
	NTSTATUS status;

	req = tevent_req_create(mem_ctx, &state, struct cli_cifs_rename_state);
	if (req == NULL) {
		return NULL;
	}

	if (replace) {
		/*
		 * CIFS doesn't support replace
		 */
		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
		return tevent_req_post(req, ev);
	}

	/*
	 * Strip a MSDFS path from fname_dst if we were given one.
	 */
	status = cli_dfs_target_check(state,
				cli,
				fname_src,
				fname_dst,
				&fname_dst);
	if (tevent_req_nterror(req, status)) {
		return tevent_req_post(req, ev);
	}

	SSVAL(state->vwv+0, 0, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_DIRECTORY);

	bytes = talloc_array(state, uint8_t, 1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}
	bytes[0] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), fname_src,
				   strlen(fname_src)+1, NULL);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(fname_src, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	bytes = talloc_realloc(state, bytes, uint8_t,
			talloc_get_size(bytes)+1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	bytes[talloc_get_size(bytes)-1] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), fname_dst,
				   strlen(fname_dst)+1, NULL);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	subreq = cli_smb_send(state, ev, cli, SMBmv, additional_flags,
			additional_flags2,
			1, state->vwv, talloc_get_size(bytes), bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_cifs_rename_done, req);
	return req;
}

static void cli_cifs_rename_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb_recv(
		subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static NTSTATUS cli_cifs_rename_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

struct cli_rename_state {
	uint8_t dummy;
};

static void cli_rename_done1(struct tevent_req *subreq);
static void cli_rename_done_cifs(struct tevent_req *subreq);
static void cli_rename_done2(struct tevent_req *subreq);

struct tevent_req *cli_rename_send(TALLOC_CTX *mem_ctx,
				   struct tevent_context *ev,
				   struct cli_state *cli,
				   const char *fname_src,
				   const char *fname_dst,
				   bool replace)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_rename_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state, struct cli_rename_state);
	if (req == NULL) {
		return NULL;
	}

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		subreq = cli_smb2_rename_send(
			state, ev, cli, fname_src, fname_dst, replace);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq, cli_rename_done2, req);
		return req;
	}

	if (replace && smbXcli_conn_support_passthrough(cli->conn)) {
		subreq = cli_smb1_rename_send(
			state, ev, cli, fname_src, fname_dst, replace);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq, cli_rename_done1, req);
		return req;
	}

	subreq = cli_cifs_rename_send(
		state, ev, cli, fname_src,fname_dst, replace);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_rename_done_cifs, req);
	return req;
}

static void cli_rename_done1(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb1_rename_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static void cli_rename_done_cifs(struct tevent_req *subreq)
{
	NTSTATUS status = cli_cifs_rename_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static void cli_rename_done2(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb2_rename_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_rename_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_rename(struct cli_state *cli,
		    const char *fname_src,
		    const char *fname_dst,
		    bool replace)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_OK;

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_rename_send(frame, ev, cli, fname_src, fname_dst, replace);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_rename_recv(req);
	cli->raw_status = status; /* cli_smb2_rename_recv doesn't set this */

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 NT Rename a file.
****************************************************************************/

static void cli_ntrename_internal_done(struct tevent_req *subreq);

struct cli_ntrename_internal_state {
	uint16_t vwv[4];
};

static struct tevent_req *cli_ntrename_internal_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				const char *fname_src,
				const char *fname_dst,
				uint16_t rename_flag)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_ntrename_internal_state *state = NULL;
	uint8_t additional_flags = 0;
	uint16_t additional_flags2 = 0;
	uint8_t *bytes = NULL;
	NTSTATUS status;

	req = tevent_req_create(mem_ctx, &state,
				struct cli_ntrename_internal_state);
	if (req == NULL) {
		return NULL;
	}

	/*
	 * Strip a MSDFS path from fname_dst if we were given one.
	 */
	status = cli_dfs_target_check(state,
				cli,
				fname_src,
				fname_dst,
				&fname_dst);
	if (tevent_req_nterror(req, status)) {
		return tevent_req_post(req, ev);
	}

	SSVAL(state->vwv+0, 0 ,FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_DIRECTORY);
	SSVAL(state->vwv+1, 0, rename_flag);

	bytes = talloc_array(state, uint8_t, 1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}
	bytes[0] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), fname_src,
				   strlen(fname_src)+1, NULL);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(fname_src, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	bytes = talloc_realloc(state, bytes, uint8_t,
			talloc_get_size(bytes)+1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	bytes[talloc_get_size(bytes)-1] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), fname_dst,
				   strlen(fname_dst)+1, NULL);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	subreq = cli_smb_send(state, ev, cli, SMBntrename, additional_flags,
			additional_flags2,
			4, state->vwv, talloc_get_size(bytes), bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_ntrename_internal_done, req);
	return req;
}

static void cli_ntrename_internal_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb_recv(
		subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static NTSTATUS cli_ntrename_internal_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

struct tevent_req *cli_ntrename_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				const char *fname_src,
				const char *fname_dst)
{
	return cli_ntrename_internal_send(mem_ctx,
					  ev,
					  cli,
					  fname_src,
					  fname_dst,
					  RENAME_FLAG_RENAME);
}

NTSTATUS cli_ntrename_recv(struct tevent_req *req)
{
	return cli_ntrename_internal_recv(req);
}

NTSTATUS cli_ntrename(struct cli_state *cli, const char *fname_src, const char *fname_dst)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_ntrename_send(frame, ev, cli, fname_src, fname_dst);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_ntrename_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 NT hardlink a file.
****************************************************************************/

static struct tevent_req *cli_nt_hardlink_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				const char *fname_src,
				const char *fname_dst)
{
	return cli_ntrename_internal_send(mem_ctx,
					  ev,
					  cli,
					  fname_src,
					  fname_dst,
					  RENAME_FLAG_HARD_LINK);
}

static NTSTATUS cli_nt_hardlink_recv(struct tevent_req *req)
{
	return cli_ntrename_internal_recv(req);
}

struct cli_smb2_hardlink_state {
	struct tevent_context *ev;
	struct cli_state *cli;
	uint16_t fnum_src;
	const char *fname_dst;
	bool overwrite;
	NTSTATUS status;
};

static void cli_smb2_hardlink_opened(struct tevent_req *subreq);
static void cli_smb2_hardlink_info_set(struct tevent_req *subreq);
static void cli_smb2_hardlink_closed(struct tevent_req *subreq);

static struct tevent_req *cli_smb2_hardlink_send(
	TALLOC_CTX *mem_ctx,
	struct tevent_context *ev,
	struct cli_state *cli,
	const char *fname_src,
	const char *fname_dst,
	bool overwrite,
	struct smb2_create_blobs *in_cblobs)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_smb2_hardlink_state *state = NULL;
	NTSTATUS status;

	req = tevent_req_create(
		mem_ctx, &state, struct cli_smb2_hardlink_state);
	if (req == NULL) {
		return NULL;
	}

	/*
	 * Strip a MSDFS path from fname_dst if we were given one.
	 */
	status = cli_dfs_target_check(state,
				cli,
				fname_src,
				fname_dst,
				&fname_dst);
	if (tevent_req_nterror(req, status)) {
		return tevent_req_post(req, ev);
	}

	state->ev = ev;
	state->cli = cli;
	state->fname_dst = fname_dst;
	state->overwrite = overwrite;

	subreq = cli_smb2_create_fnum_send(
		state,
		ev,
		cli,
		fname_src,
		0,			/* create_flags */
		SMB2_IMPERSONATION_IMPERSONATION,
		FILE_WRITE_ATTRIBUTES,
		0,			/* file attributes */
		FILE_SHARE_READ|
		FILE_SHARE_WRITE|
		FILE_SHARE_DELETE,	 /* share_access */
		FILE_OPEN,		 /* create_disposition */
		FILE_NON_DIRECTORY_FILE, /* no hardlinks on directories */
		in_cblobs);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_smb2_hardlink_opened, req);
	return req;
}

static void cli_smb2_hardlink_opened(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_smb2_hardlink_state *state = tevent_req_data(
		req, struct cli_smb2_hardlink_state);
	NTSTATUS status;
	smb_ucs2_t *ucs2_dst;
	size_t ucs2_len;
	DATA_BLOB inbuf;
	bool ok;

	status = cli_smb2_create_fnum_recv(
		subreq, &state->fnum_src, NULL, NULL, NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}

	ok = push_ucs2_talloc(state, &ucs2_dst, state->fname_dst, &ucs2_len);
	if (!ok || (ucs2_len < 2)) {
		tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
		return;
	}
	/* Don't 0-terminate the name */
	ucs2_len -= 2;

	inbuf = data_blob_talloc_zero(state, ucs2_len + 20);
	if (tevent_req_nomem(inbuf.data, req)) {
		return;
	}

	if (state->overwrite) {
		SCVAL(inbuf.data, 0, 1);
	}
	SIVAL(inbuf.data, 16, ucs2_len);
	memcpy(inbuf.data + 20, ucs2_dst, ucs2_len);
	TALLOC_FREE(ucs2_dst);

	subreq = cli_smb2_set_info_fnum_send(
		state,
		state->ev,
		state->cli,
		state->fnum_src,
		1,		/* in_info_type */
		SMB_FILE_LINK_INFORMATION - 1000, /* in_file_info_class */
		&inbuf,
		0);		/* in_additional_info */
	if (tevent_req_nomem(subreq, req)) {
		return;
	}
	tevent_req_set_callback(subreq, cli_smb2_hardlink_info_set, req);
}

static void cli_smb2_hardlink_info_set(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_smb2_hardlink_state *state = tevent_req_data(
		req, struct cli_smb2_hardlink_state);

	state->status = cli_smb2_set_info_fnum_recv(subreq);
	TALLOC_FREE(subreq);

	/* ignore error here, we need to close the file */

	subreq = cli_smb2_close_fnum_send(
		state, state->ev, state->cli, state->fnum_src);
	if (tevent_req_nomem(subreq, req)) {
		return;
	}
	tevent_req_set_callback(subreq, cli_smb2_hardlink_closed, req);
}

static void cli_smb2_hardlink_closed(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb2_close_fnum_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static NTSTATUS cli_smb2_hardlink_recv(struct tevent_req *req)
{
	struct cli_smb2_hardlink_state *state = tevent_req_data(
		req, struct cli_smb2_hardlink_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	return state->status;
}

struct cli_hardlink_state {
	uint8_t dummy;
};

static void cli_hardlink_done(struct tevent_req *subreq);
static void cli_hardlink_done2(struct tevent_req *subreq);

struct tevent_req *cli_hardlink_send(
	TALLOC_CTX *mem_ctx,
	struct tevent_context *ev,
	struct cli_state *cli,
	const char *fname_src,
	const char *fname_dst)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_hardlink_state *state;

	req = tevent_req_create(mem_ctx, &state, struct cli_hardlink_state);
	if (req == NULL) {
		return NULL;
	}

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		subreq = cli_smb2_hardlink_send(
			state, ev, cli, fname_src, fname_dst, false, NULL);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq, cli_hardlink_done2, req);
		return req;
	}

	subreq = cli_nt_hardlink_send(state, ev, cli, fname_src, fname_dst);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_hardlink_done, req);
	return req;
}

static void cli_hardlink_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_nt_hardlink_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static void cli_hardlink_done2(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb2_hardlink_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_hardlink_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_hardlink(
	struct cli_state *cli, const char *fname_src, const char *fname_dst)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_hardlink_send(frame, ev, cli, fname_src, fname_dst);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_hardlink_recv(req);
 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Delete a file.
****************************************************************************/

static void cli_unlink_done(struct tevent_req *subreq);
static void cli_unlink_done2(struct tevent_req *subreq);

struct cli_unlink_state {
	uint16_t vwv[1];
};

struct tevent_req *cli_unlink_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				const char *fname,
				uint32_t mayhave_attrs)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_unlink_state *state = NULL;
	uint8_t additional_flags = 0;
	uint16_t additional_flags2 = 0;
	uint8_t *bytes = NULL;

	req = tevent_req_create(mem_ctx, &state, struct cli_unlink_state);
	if (req == NULL) {
		return NULL;
	}

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		subreq = cli_smb2_unlink_send(state, ev, cli, fname, NULL);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq, cli_unlink_done2, req);
		return req;
	}

	if (mayhave_attrs & 0xFFFF0000) {
		/*
		 * Don't allow attributes greater than
		 * 16-bits for a 16-bit protocol value.
		 */
		if (tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER)) {
			return tevent_req_post(req, ev);
		}
	}

	SSVAL(state->vwv+0, 0, mayhave_attrs);

	bytes = talloc_array(state, uint8_t, 1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}
	bytes[0] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), fname,
				   strlen(fname)+1, NULL);

	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(fname, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	subreq = cli_smb_send(state, ev, cli, SMBunlink, additional_flags,
				additional_flags2,
				1, state->vwv, talloc_get_size(bytes), bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_unlink_done, req);
	return req;
}

static void cli_unlink_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb_recv(
		subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static void cli_unlink_done2(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb2_unlink_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_unlink_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_unlink(struct cli_state *cli, const char *fname, uint32_t mayhave_attrs)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_OK;

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_unlink_send(frame, ev, cli, fname, mayhave_attrs);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_unlink_recv(req);
	cli->raw_status = status; /* cli_smb2_unlink_recv doesn't set this */

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Create a directory.
****************************************************************************/

static void cli_mkdir_done(struct tevent_req *subreq);
static void cli_mkdir_done2(struct tevent_req *subreq);

struct cli_mkdir_state {
	int dummy;
};

struct tevent_req *cli_mkdir_send(TALLOC_CTX *mem_ctx,
				  struct tevent_context *ev,
				  struct cli_state *cli,
				  const char *dname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_mkdir_state *state = NULL;
	uint8_t additional_flags = 0;
	uint16_t additional_flags2 = 0;
	uint8_t *bytes = NULL;

	req = tevent_req_create(mem_ctx, &state, struct cli_mkdir_state);
	if (req == NULL) {
		return NULL;
	}

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		subreq = cli_smb2_mkdir_send(state, ev, cli, dname);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq, cli_mkdir_done2, req);
		return req;
	}

	bytes = talloc_array(state, uint8_t, 1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}
	bytes[0] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), dname,
				   strlen(dname)+1, NULL);

	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(dname, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	subreq = cli_smb_send(state, ev, cli, SMBmkdir, additional_flags,
			additional_flags2,
			0, NULL, talloc_get_size(bytes), bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_mkdir_done, req);
	return req;
}

static void cli_mkdir_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	NTSTATUS status;

	status = cli_smb_recv(subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

static void cli_mkdir_done2(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb2_mkdir_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_mkdir_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_mkdir(struct cli_state *cli, const char *dname)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_OK;

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_mkdir_send(frame, ev, cli, dname);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_mkdir_recv(req);
	cli->raw_status = status; /* cli_smb2_mkdir_recv doesn't set this */

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Remove a directory.
****************************************************************************/

static void cli_rmdir_done(struct tevent_req *subreq);
static void cli_rmdir_done2(struct tevent_req *subreq);

struct cli_rmdir_state {
	int dummy;
};

struct tevent_req *cli_rmdir_send(TALLOC_CTX *mem_ctx,
				  struct tevent_context *ev,
				  struct cli_state *cli,
				  const char *dname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_rmdir_state *state = NULL;
	uint8_t additional_flags = 0;
	uint16_t additional_flags2 = 0;
	uint8_t *bytes = NULL;

	req = tevent_req_create(mem_ctx, &state, struct cli_rmdir_state);
	if (req == NULL) {
		return NULL;
	}

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		subreq = cli_smb2_rmdir_send(state, ev, cli, dname, NULL);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq, cli_rmdir_done2, req);
		return req;
	}

	bytes = talloc_array(state, uint8_t, 1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}
	bytes[0] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), dname,
				   strlen(dname)+1, NULL);

	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(dname, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	subreq = cli_smb_send(state, ev, cli, SMBrmdir, additional_flags,
			additional_flags2,
			0, NULL, talloc_get_size(bytes), bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_rmdir_done, req);
	return req;
}

static void cli_rmdir_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb_recv(
		subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static void cli_rmdir_done2(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb2_rmdir_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_rmdir_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_rmdir(struct cli_state *cli, const char *dname)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_OK;

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_rmdir_send(frame, ev, cli, dname);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_rmdir_recv(req);
	cli->raw_status = status; /* cli_smb2_rmdir_recv doesn't set this */

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Set or clear the delete on close flag.
****************************************************************************/

struct doc_state {
	uint8_t data[1];
};

static void cli_nt_delete_on_close_smb1_done(struct tevent_req *subreq);
static void cli_nt_delete_on_close_smb2_done(struct tevent_req *subreq);

struct tevent_req *cli_nt_delete_on_close_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					uint16_t fnum,
					bool flag)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct doc_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state, struct doc_state);
	if (req == NULL) {
		return NULL;
	}

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		subreq = cli_smb2_delete_on_close_send(state, ev, cli,
						       fnum, flag);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq,
					cli_nt_delete_on_close_smb2_done,
					req);
		return req;
	}

	/* Setup data array. */
	SCVAL(&state->data[0], 0, flag ? 1 : 0);

	subreq = cli_setfileinfo_send(
		state,
		ev,
		cli,
		fnum,
		SMB_SET_FILE_DISPOSITION_INFO,
		state->data,
		sizeof(state->data));

	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq,
				cli_nt_delete_on_close_smb1_done,
				req);
	return req;
}

static void cli_nt_delete_on_close_smb1_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_setfileinfo_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static void cli_nt_delete_on_close_smb2_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb2_delete_on_close_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_nt_delete_on_close_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_nt_delete_on_close(struct cli_state *cli, uint16_t fnum, bool flag)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_nt_delete_on_close_send(frame,
				ev,
				cli,
				fnum,
				flag);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_nt_delete_on_close_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

struct cli_ntcreate1_state {
	uint16_t vwv[24];
	uint16_t fnum;
	struct smb_create_returns cr;
	struct tevent_req *subreq;
};

static void cli_ntcreate1_done(struct tevent_req *subreq);
static bool cli_ntcreate1_cancel(struct tevent_req *req);

static struct tevent_req *cli_ntcreate1_send(TALLOC_CTX *mem_ctx,
					     struct tevent_context *ev,
					     struct cli_state *cli,
					     const char *fname,
					     uint32_t CreatFlags,
					     uint32_t DesiredAccess,
					     uint32_t FileAttributes,
					     uint32_t ShareAccess,
					     uint32_t CreateDisposition,
					     uint32_t CreateOptions,
					     uint32_t ImpersonationLevel,
					     uint8_t SecurityFlags)
{
	struct tevent_req *req, *subreq;
	struct cli_ntcreate1_state *state;
	uint16_t *vwv;
	uint8_t *bytes;
	size_t converted_len;
	uint16_t additional_flags2 = 0;

	req = tevent_req_create(mem_ctx, &state, struct cli_ntcreate1_state);
	if (req == NULL) {
		return NULL;
	}

	vwv = state->vwv;

	SCVAL(vwv+0, 0, 0xFF);
	SCVAL(vwv+0, 1, 0);
	SSVAL(vwv+1, 0, 0);
	SCVAL(vwv+2, 0, 0);

	if (cli->use_oplocks) {
		CreatFlags |= (REQUEST_OPLOCK|REQUEST_BATCH_OPLOCK);
	}
	SIVAL(vwv+3, 1, CreatFlags);
	SIVAL(vwv+5, 1, 0x0);	/* RootDirectoryFid */
	SIVAL(vwv+7, 1, DesiredAccess);
	SIVAL(vwv+9, 1, 0x0);	/* AllocationSize */
	SIVAL(vwv+11, 1, 0x0);	/* AllocationSize */
	SIVAL(vwv+13, 1, FileAttributes);
	SIVAL(vwv+15, 1, ShareAccess);
	SIVAL(vwv+17, 1, CreateDisposition);
	SIVAL(vwv+19, 1, CreateOptions |
		(cli->backup_intent ? FILE_OPEN_FOR_BACKUP_INTENT : 0));
	SIVAL(vwv+21, 1, ImpersonationLevel);
	SCVAL(vwv+23, 1, SecurityFlags);

	bytes = talloc_array(state, uint8_t, 0);
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn),
				   fname, strlen(fname)+1,
				   &converted_len);

	if (clistr_is_previous_version_path(fname, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	/* sigh. this copes with broken netapp filer behaviour */
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), "", 1, NULL);

	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	SSVAL(vwv+2, 1, converted_len);

	subreq = cli_smb_send(state, ev, cli, SMBntcreateX, 0,
			additional_flags2, 24, vwv,
			talloc_get_size(bytes), bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_ntcreate1_done, req);

	state->subreq = subreq;
	tevent_req_set_cancel_fn(req, cli_ntcreate1_cancel);

	return req;
}

static void cli_ntcreate1_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_ntcreate1_state *state = tevent_req_data(
		req, struct cli_ntcreate1_state);
	uint8_t wct;
	uint16_t *vwv;
	uint32_t num_bytes;
	uint8_t *bytes;
	NTSTATUS status;

	status = cli_smb_recv(subreq, state, NULL, 34, &wct, &vwv,
			      &num_bytes, &bytes);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	state->cr.oplock_level = CVAL(vwv+2, 0);
	state->fnum = SVAL(vwv+2, 1);
	state->cr.create_action = IVAL(vwv+3, 1);
	state->cr.creation_time = BVAL(vwv+5, 1);
	state->cr.last_access_time = BVAL(vwv+9, 1);
	state->cr.last_write_time = BVAL(vwv+13, 1);
	state->cr.change_time   = BVAL(vwv+17, 1);
	state->cr.file_attributes = IVAL(vwv+21, 1);
	state->cr.allocation_size = BVAL(vwv+23, 1);
	state->cr.end_of_file   = BVAL(vwv+27, 1);

	tevent_req_done(req);
}

static bool cli_ntcreate1_cancel(struct tevent_req *req)
{
	struct cli_ntcreate1_state *state = tevent_req_data(
		req, struct cli_ntcreate1_state);
	return tevent_req_cancel(state->subreq);
}

static NTSTATUS cli_ntcreate1_recv(struct tevent_req *req,
				   uint16_t *pfnum,
				   struct smb_create_returns *cr)
{
	struct cli_ntcreate1_state *state = tevent_req_data(
		req, struct cli_ntcreate1_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	*pfnum = state->fnum;
	if (cr != NULL) {
		*cr = state->cr;
	}
	return NT_STATUS_OK;
}

struct cli_ntcreate_state {
	struct smb_create_returns cr;
	uint16_t fnum;
	struct tevent_req *subreq;
};

static void cli_ntcreate_done_nt1(struct tevent_req *subreq);
static void cli_ntcreate_done_smb2(struct tevent_req *subreq);
static bool cli_ntcreate_cancel(struct tevent_req *req);

struct tevent_req *cli_ntcreate_send(TALLOC_CTX *mem_ctx,
				     struct tevent_context *ev,
				     struct cli_state *cli,
				     const char *fname,
				     uint32_t create_flags,
				     uint32_t desired_access,
				     uint32_t file_attributes,
				     uint32_t share_access,
				     uint32_t create_disposition,
				     uint32_t create_options,
				     uint32_t impersonation_level,
				     uint8_t security_flags)
{
	struct tevent_req *req, *subreq;
	struct cli_ntcreate_state *state;

	req = tevent_req_create(mem_ctx, &state, struct cli_ntcreate_state);
	if (req == NULL) {
		return NULL;
	}

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		if (cli->use_oplocks) {
			create_flags |= REQUEST_OPLOCK|REQUEST_BATCH_OPLOCK;
		}

		subreq = cli_smb2_create_fnum_send(
			state,
			ev,
			cli,
			fname,
			create_flags,
			impersonation_level,
			desired_access,
			file_attributes,
			share_access,
			create_disposition,
			create_options,
			NULL);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq, cli_ntcreate_done_smb2, req);
	} else {
		subreq = cli_ntcreate1_send(
			state, ev, cli, fname, create_flags, desired_access,
			file_attributes, share_access, create_disposition,
			create_options, impersonation_level, security_flags);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq, cli_ntcreate_done_nt1, req);
	}

	state->subreq = subreq;
	tevent_req_set_cancel_fn(req, cli_ntcreate_cancel);

	return req;
}

static void cli_ntcreate_done_nt1(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_ntcreate_state *state = tevent_req_data(
		req, struct cli_ntcreate_state);
	NTSTATUS status;

	status = cli_ntcreate1_recv(subreq, &state->fnum, &state->cr);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

static void cli_ntcreate_done_smb2(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_ntcreate_state *state = tevent_req_data(
		req, struct cli_ntcreate_state);
	NTSTATUS status;

	status = cli_smb2_create_fnum_recv(
		subreq,
		&state->fnum,
		&state->cr,
		NULL,
		NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

static bool cli_ntcreate_cancel(struct tevent_req *req)
{
	struct cli_ntcreate_state *state = tevent_req_data(
		req, struct cli_ntcreate_state);
	return tevent_req_cancel(state->subreq);
}

NTSTATUS cli_ntcreate_recv(struct tevent_req *req, uint16_t *fnum,
			   struct smb_create_returns *cr)
{
	struct cli_ntcreate_state *state = tevent_req_data(
		req, struct cli_ntcreate_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	if (fnum != NULL) {
		*fnum = state->fnum;
	}
	if (cr != NULL) {
		*cr = state->cr;
	}
	return NT_STATUS_OK;
}

NTSTATUS cli_ntcreate(struct cli_state *cli,
		      const char *fname,
		      uint32_t CreatFlags,
		      uint32_t DesiredAccess,
		      uint32_t FileAttributes,
		      uint32_t ShareAccess,
		      uint32_t CreateDisposition,
		      uint32_t CreateOptions,
		      uint8_t SecurityFlags,
		      uint16_t *pfid,
		      struct smb_create_returns *cr)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev;
	struct tevent_req *req;
	uint32_t ImpersonationLevel = SMB2_IMPERSONATION_IMPERSONATION;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}

	req = cli_ntcreate_send(frame, ev, cli, fname, CreatFlags,
				DesiredAccess, FileAttributes, ShareAccess,
				CreateDisposition, CreateOptions,
				ImpersonationLevel, SecurityFlags);
	if (req == NULL) {
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_ntcreate_recv(req, pfid, cr);
 fail:
	TALLOC_FREE(frame);
	return status;
}

struct cli_nttrans_create_state {
	uint16_t fnum;
	struct smb_create_returns cr;
};

static void cli_nttrans_create_done(struct tevent_req *subreq);

struct tevent_req *cli_nttrans_create_send(TALLOC_CTX *mem_ctx,
					   struct tevent_context *ev,
					   struct cli_state *cli,
					   const char *fname,
					   uint32_t CreatFlags,
					   uint32_t DesiredAccess,
					   uint32_t FileAttributes,
					   uint32_t ShareAccess,
					   uint32_t CreateDisposition,
					   uint32_t CreateOptions,
					   uint8_t SecurityFlags,
					   struct security_descriptor *secdesc,
					   struct ea_struct *eas,
					   int num_eas)
{
	struct tevent_req *req, *subreq;
	struct cli_nttrans_create_state *state;
	uint8_t *param;
	uint8_t *secdesc_buf;
	size_t secdesc_len;
	NTSTATUS status;
	size_t converted_len;
	uint16_t additional_flags2 = 0;

	req = tevent_req_create(mem_ctx,
				&state, struct cli_nttrans_create_state);
	if (req == NULL) {
		return NULL;
	}

	if (secdesc != NULL) {
		status = marshall_sec_desc(talloc_tos(), secdesc,
					   &secdesc_buf, &secdesc_len);
		if (tevent_req_nterror(req, status)) {
			DEBUG(10, ("marshall_sec_desc failed: %s\n",
				   nt_errstr(status)));
			return tevent_req_post(req, ev);
		}
	} else {
		secdesc_buf = NULL;
		secdesc_len = 0;
	}

	if (num_eas != 0) {
		/*
		 * TODO ;-)
		 */
		tevent_req_nterror(req, NT_STATUS_NOT_IMPLEMENTED);
		return tevent_req_post(req, ev);
	}

	param = talloc_array(state, uint8_t, 53);
	if (tevent_req_nomem(param, req)) {
		return tevent_req_post(req, ev);
	}

	param = trans2_bytes_push_str(param, smbXcli_conn_use_unicode(cli->conn),
				      fname, strlen(fname),
				      &converted_len);
	if (tevent_req_nomem(param, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(fname, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	SIVAL(param, 0, CreatFlags);
	SIVAL(param, 4, 0x0);	/* RootDirectoryFid */
	SIVAL(param, 8, DesiredAccess);
	SIVAL(param, 12, 0x0);	/* AllocationSize */
	SIVAL(param, 16, 0x0);	/* AllocationSize */
	SIVAL(param, 20, FileAttributes);
	SIVAL(param, 24, ShareAccess);
	SIVAL(param, 28, CreateDisposition);
	SIVAL(param, 32, CreateOptions |
		(cli->backup_intent ? FILE_OPEN_FOR_BACKUP_INTENT : 0));
	SIVAL(param, 36, secdesc_len);
	SIVAL(param, 40, 0);	 /* EA length*/
	SIVAL(param, 44, converted_len);
	SIVAL(param, 48, 0x02); /* ImpersonationLevel */
	SCVAL(param, 52, SecurityFlags);

	subreq = cli_trans_send(state, ev, cli,
				additional_flags2, /* additional_flags2 */
				SMBnttrans,
				NULL, -1, /* name, fid */
				NT_TRANSACT_CREATE, 0,
				NULL, 0, 0, /* setup */
				param, talloc_get_size(param), 128, /* param */
				secdesc_buf, secdesc_len, 0); /* data */
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_nttrans_create_done, req);
	return req;
}

static void cli_nttrans_create_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_nttrans_create_state *state = tevent_req_data(
		req, struct cli_nttrans_create_state);
	uint8_t *param;
	uint32_t num_param;
	NTSTATUS status;

	status = cli_trans_recv(subreq, talloc_tos(), NULL,
				NULL, 0, NULL, /* rsetup */
				&param, 69, &num_param,
				NULL, 0, NULL);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	state->cr.oplock_level = CVAL(param, 0);
	state->fnum = SVAL(param, 2);
	state->cr.create_action = IVAL(param, 4);
	state->cr.creation_time = BVAL(param, 12);
	state->cr.last_access_time = BVAL(param, 20);
	state->cr.last_write_time = BVAL(param, 28);
	state->cr.change_time   = BVAL(param, 36);
	state->cr.file_attributes = IVAL(param, 44);
	state->cr.allocation_size = BVAL(param, 48);
	state->cr.end_of_file   = BVAL(param, 56);

	TALLOC_FREE(param);
	tevent_req_done(req);
}

NTSTATUS cli_nttrans_create_recv(struct tevent_req *req,
			uint16_t *fnum,
			struct smb_create_returns *cr)
{
	struct cli_nttrans_create_state *state = tevent_req_data(
		req, struct cli_nttrans_create_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	*fnum = state->fnum;
	if (cr != NULL) {
		*cr = state->cr;
	}
	return NT_STATUS_OK;
}

NTSTATUS cli_nttrans_create(struct cli_state *cli,
			    const char *fname,
			    uint32_t CreatFlags,
			    uint32_t DesiredAccess,
			    uint32_t FileAttributes,
			    uint32_t ShareAccess,
			    uint32_t CreateDisposition,
			    uint32_t CreateOptions,
			    uint8_t SecurityFlags,
			    struct security_descriptor *secdesc,
			    struct ea_struct *eas,
			    int num_eas,
			    uint16_t *pfid,
			    struct smb_create_returns *cr)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_nttrans_create_send(frame, ev, cli, fname, CreatFlags,
				      DesiredAccess, FileAttributes,
				      ShareAccess, CreateDisposition,
				      CreateOptions, SecurityFlags,
				      secdesc, eas, num_eas);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_nttrans_create_recv(req, pfid, cr);
 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Open a file
 WARNING: if you open with O_WRONLY then getattrE won't work!
****************************************************************************/

struct cli_openx_state {
	const char *fname;
	uint16_t vwv[15];
	uint16_t fnum;
	struct iovec bytes;
};

static void cli_openx_done(struct tevent_req *subreq);

struct tevent_req *cli_openx_create(TALLOC_CTX *mem_ctx,
				   struct tevent_context *ev,
				   struct cli_state *cli, const char *fname,
				   int flags, int share_mode,
				   struct tevent_req **psmbreq)
{
	struct tevent_req *req, *subreq;
	struct cli_openx_state *state;
	unsigned openfn;
	unsigned accessmode;
	uint8_t additional_flags;
	uint16_t additional_flags2 = 0;
	uint8_t *bytes;

	req = tevent_req_create(mem_ctx, &state, struct cli_openx_state);
	if (req == NULL) {
		return NULL;
	}

	openfn = 0;
	if (flags & O_CREAT) {
		openfn |= (1<<4);
	}
	if (!(flags & O_EXCL)) {
		if (flags & O_TRUNC)
			openfn |= (1<<1);
		else
			openfn |= (1<<0);
	}

	accessmode = (share_mode<<4);

	if ((flags & O_ACCMODE) == O_RDWR) {
		accessmode |= 2;
	} else if ((flags & O_ACCMODE) == O_WRONLY) {
		accessmode |= 1;
	}

#if defined(O_SYNC)
	if ((flags & O_SYNC) == O_SYNC) {
		accessmode |= (1<<14);
	}
#endif /* O_SYNC */

	if (share_mode == DENY_FCB) {
		accessmode = 0xFF;
	}

	SCVAL(state->vwv + 0, 0, 0xFF);
	SCVAL(state->vwv + 0, 1, 0);
	SSVAL(state->vwv + 1, 0, 0);
	SSVAL(state->vwv + 2, 0, 0);  /* no additional info */
	SSVAL(state->vwv + 3, 0, accessmode);
	SSVAL(state->vwv + 4, 0, FILE_ATTRIBUTE_SYSTEM | FILE_ATTRIBUTE_HIDDEN);
	SSVAL(state->vwv + 5, 0, 0);
	SIVAL(state->vwv + 6, 0, 0);
	SSVAL(state->vwv + 8, 0, openfn);
	SIVAL(state->vwv + 9, 0, 0);
	SIVAL(state->vwv + 11, 0, 0);
	SIVAL(state->vwv + 13, 0, 0);

	additional_flags = 0;

	if (cli->use_oplocks) {
		/* if using oplocks then ask for a batch oplock via
                   core and extended methods */
		additional_flags =
			FLAG_REQUEST_OPLOCK|FLAG_REQUEST_BATCH_OPLOCK;
		SSVAL(state->vwv+2, 0, SVAL(state->vwv+2, 0) | 6);
	}

	bytes = talloc_array(state, uint8_t, 0);
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), fname,
				   strlen(fname)+1, NULL);

	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(fname, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	state->bytes.iov_base = (void *)bytes;
	state->bytes.iov_len = talloc_get_size(bytes);

	subreq = cli_smb_req_create(state, ev, cli, SMBopenX, additional_flags,
			additional_flags2, 15, state->vwv, 1, &state->bytes);
	if (subreq == NULL) {
		TALLOC_FREE(req);
		return NULL;
	}
	tevent_req_set_callback(subreq, cli_openx_done, req);
	*psmbreq = subreq;
	return req;
}

struct tevent_req *cli_openx_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev,
				 struct cli_state *cli, const char *fname,
				 int flags, int share_mode)
{
	struct tevent_req *req, *subreq;
	NTSTATUS status;

	req = cli_openx_create(mem_ctx, ev, cli, fname, flags, share_mode,
			      &subreq);
	if (req == NULL) {
		return NULL;
	}

	status = smb1cli_req_chain_submit(&subreq, 1);
	if (tevent_req_nterror(req, status)) {
		return tevent_req_post(req, ev);
	}
	return req;
}

static void cli_openx_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_openx_state *state = tevent_req_data(
		req, struct cli_openx_state);
	uint8_t wct;
	uint16_t *vwv;
	NTSTATUS status;

	status = cli_smb_recv(subreq, state, NULL, 3, &wct, &vwv, NULL,
			      NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	state->fnum = SVAL(vwv+2, 0);
	tevent_req_done(req);
}

NTSTATUS cli_openx_recv(struct tevent_req *req, uint16_t *pfnum)
{
	struct cli_openx_state *state = tevent_req_data(
		req, struct cli_openx_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	*pfnum = state->fnum;
	return NT_STATUS_OK;
}

NTSTATUS cli_openx(struct cli_state *cli, const char *fname, int flags,
	     int share_mode, uint16_t *pfnum)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}

	req = cli_openx_send(frame, ev, cli, fname, flags, share_mode);
	if (req == NULL) {
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_openx_recv(req, pfnum);
 fail:
	TALLOC_FREE(frame);
	return status;
}
/****************************************************************************
 Synchronous wrapper function that does an NtCreateX open by preference
 and falls back to openX if this fails.
****************************************************************************/

NTSTATUS cli_open(struct cli_state *cli, const char *fname, int flags,
			int share_mode_in, uint16_t *pfnum)
{
	NTSTATUS status;
	unsigned int openfn = 0;
	unsigned int dos_deny = 0;
	uint32_t access_mask, share_mode, create_disposition, create_options;
	struct smb_create_returns cr = {0};

	/* Do the initial mapping into OpenX parameters. */
	if (flags & O_CREAT) {
		openfn |= (1<<4);
	}
	if (!(flags & O_EXCL)) {
		if (flags & O_TRUNC)
			openfn |= (1<<1);
		else
			openfn |= (1<<0);
	}

	dos_deny = (share_mode_in<<4);

	if ((flags & O_ACCMODE) == O_RDWR) {
		dos_deny |= 2;
	} else if ((flags & O_ACCMODE) == O_WRONLY) {
		dos_deny |= 1;
	}

#if defined(O_SYNC)
	if ((flags & O_SYNC) == O_SYNC) {
		dos_deny |= (1<<14);
	}
#endif /* O_SYNC */

	if (share_mode_in == DENY_FCB) {
		dos_deny = 0xFF;
	}

	if (!map_open_params_to_ntcreate(fname, dos_deny,
					openfn, &access_mask,
					&share_mode, &create_disposition,
					&create_options, NULL)) {
		goto try_openx;
	}

	status = cli_ntcreate(cli,
				fname,
				0,
				access_mask,
				0,
				share_mode,
				create_disposition,
				create_options,
				0,
				pfnum,
				&cr);

	/* Try and cope will all varients of "we don't do this call"
	   and fall back to openX. */

	if (NT_STATUS_EQUAL(status,NT_STATUS_NOT_IMPLEMENTED) ||
			NT_STATUS_EQUAL(status,NT_STATUS_INVALID_INFO_CLASS) ||
			NT_STATUS_EQUAL(status,NT_STATUS_PROCEDURE_NOT_FOUND) ||
			NT_STATUS_EQUAL(status,NT_STATUS_INVALID_LEVEL) ||
			NT_STATUS_EQUAL(status,NT_STATUS_INVALID_PARAMETER) ||
			NT_STATUS_EQUAL(status,NT_STATUS_INVALID_DEVICE_REQUEST) ||
			NT_STATUS_EQUAL(status,NT_STATUS_INVALID_DEVICE_STATE) ||
			NT_STATUS_EQUAL(status,NT_STATUS_CTL_FILE_NOT_SUPPORTED) ||
			NT_STATUS_EQUAL(status,NT_STATUS_UNSUCCESSFUL)) {
		goto try_openx;
	}

	if (NT_STATUS_IS_OK(status) &&
	    (create_options & FILE_NON_DIRECTORY_FILE) &&
	    (cr.file_attributes & FILE_ATTRIBUTE_DIRECTORY))
	{
		/*
		 * Some (broken) servers return a valid handle
		 * for directories even if FILE_NON_DIRECTORY_FILE
		 * is set. Just close the handle and set the
		 * error explicitly to NT_STATUS_FILE_IS_A_DIRECTORY.
		 */
		status = cli_close(cli, *pfnum);
		if (!NT_STATUS_IS_OK(status)) {
			return status;
		}
		status = NT_STATUS_FILE_IS_A_DIRECTORY;
		/* Set this so libsmbclient can retrieve it. */
		cli->raw_status = status;
	}

	return status;

  try_openx:

	return cli_openx(cli, fname, flags, share_mode_in, pfnum);
}

/****************************************************************************
 Close a file.
****************************************************************************/

struct cli_smb1_close_state {
	uint16_t vwv[3];
};

static void cli_smb1_close_done(struct tevent_req *subreq);

struct tevent_req *cli_smb1_close_create(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				uint16_t fnum,
				struct tevent_req **psubreq)
{
	struct tevent_req *req, *subreq;
	struct cli_smb1_close_state *state;

	req = tevent_req_create(mem_ctx, &state, struct cli_smb1_close_state);
	if (req == NULL) {
		return NULL;
	}

	SSVAL(state->vwv+0, 0, fnum);
	SIVALS(state->vwv+1, 0, -1);

	subreq = cli_smb_req_create(state, ev, cli, SMBclose, 0, 0,
				3, state->vwv, 0, NULL);
	if (subreq == NULL) {
		TALLOC_FREE(req);
		return NULL;
	}
	tevent_req_set_callback(subreq, cli_smb1_close_done, req);
	*psubreq = subreq;
	return req;
}

static void cli_smb1_close_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	NTSTATUS status;

	status = cli_smb_recv(subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

struct cli_close_state {
	int dummy;
};

static void cli_close_done(struct tevent_req *subreq);

struct tevent_req *cli_close_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				uint16_t fnum)
{
	struct tevent_req *req, *subreq;
	struct cli_close_state *state;
	NTSTATUS status;

	req = tevent_req_create(mem_ctx, &state, struct cli_close_state);
	if (req == NULL) {
		return NULL;
	}

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		subreq = cli_smb2_close_fnum_send(state,
						ev,
						cli,
						fnum);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
	} else {
		struct tevent_req *ch_req = NULL;
		subreq = cli_smb1_close_create(state, ev, cli, fnum, &ch_req);
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		status = smb1cli_req_chain_submit(&ch_req, 1);
		if (tevent_req_nterror(req, status)) {
			return tevent_req_post(req, ev);
		}
	}

	tevent_req_set_callback(subreq, cli_close_done, req);
	return req;
}

static void cli_close_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	NTSTATUS status = NT_STATUS_OK;
	bool err = tevent_req_is_nterror(subreq, &status);

	TALLOC_FREE(subreq);
	if (err) {
		tevent_req_nterror(req, status);
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_close_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_close(struct cli_state *cli, uint16_t fnum)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_OK;

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_close_send(frame, ev, cli, fnum);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_close_recv(req);
 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Truncate a file to a specified size
****************************************************************************/

struct ftrunc_state {
	uint8_t data[8];
};

static void cli_ftruncate_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_setfileinfo_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

struct tevent_req *cli_ftruncate_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					uint16_t fnum,
					uint64_t size)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct ftrunc_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state, struct ftrunc_state);
	if (req == NULL) {
		return NULL;
	}

	/* Setup data array. */
        SBVAL(state->data, 0, size);

	subreq = cli_setfileinfo_send(
		state,
		ev,
		cli,
		fnum,
		SMB_SET_FILE_END_OF_FILE_INFO,
		state->data,
		sizeof(state->data));

	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_ftruncate_done, req);
	return req;
}

NTSTATUS cli_ftruncate_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_ftruncate(struct cli_state *cli, uint16_t fnum, uint64_t size)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		return cli_smb2_ftruncate(cli, fnum, size);
	}

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_ftruncate_send(frame,
				ev,
				cli,
				fnum,
				size);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_ftruncate_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

static uint8_t *cli_lockingx_put_locks(
	uint8_t *buf,
	bool large,
	uint16_t num_locks,
	const struct smb1_lock_element *locks)
{
	uint16_t i;

	for (i=0; i<num_locks; i++) {
		const struct smb1_lock_element *e = &locks[i];
		if (large) {
			SSVAL(buf, 0, e->pid);
			SSVAL(buf, 2, 0);
			SOFF_T_R(buf, 4, e->offset);
			SOFF_T_R(buf, 12, e->length);
			buf += 20;
		} else {
			SSVAL(buf, 0, e->pid);
			SIVAL(buf, 2, e->offset);
			SIVAL(buf, 6, e->length);
			buf += 10;
		}
	}
	return buf;
}

struct cli_lockingx_state {
	uint16_t vwv[8];
	struct iovec bytes;
	struct tevent_req *subreq;
};

static void cli_lockingx_done(struct tevent_req *subreq);
static bool cli_lockingx_cancel(struct tevent_req *req);

struct tevent_req *cli_lockingx_create(
	TALLOC_CTX *mem_ctx,
	struct tevent_context *ev,
	struct cli_state *cli,
	uint16_t fnum,
	uint8_t typeoflock,
	uint8_t newoplocklevel,
	int32_t timeout,
	uint16_t num_unlocks,
	const struct smb1_lock_element *unlocks,
	uint16_t num_locks,
	const struct smb1_lock_element *locks,
	struct tevent_req **psmbreq)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_lockingx_state *state = NULL;
	uint16_t *vwv;
	uint8_t *p;
	const bool large = (typeoflock & LOCKING_ANDX_LARGE_FILES);
	const size_t element_len = large ? 20 : 10;

	/* uint16->size_t, no overflow */
	const size_t num_elements = (size_t)num_locks + (size_t)num_unlocks;

	/* at most 20*2*65535 = 2621400, no overflow */
	const size_t num_bytes = num_elements * element_len;

	req = tevent_req_create(mem_ctx, &state, struct cli_lockingx_state);
	if (req == NULL) {
		return NULL;
	}
	vwv = state->vwv;

	SCVAL(vwv + 0, 0, 0xFF);
	SCVAL(vwv + 0, 1, 0);
	SSVAL(vwv + 1, 0, 0);
	SSVAL(vwv + 2, 0, fnum);
	SCVAL(vwv + 3, 0, typeoflock);
	SCVAL(vwv + 3, 1, newoplocklevel);
	SIVALS(vwv + 4, 0, timeout);
	SSVAL(vwv + 6, 0, num_unlocks);
	SSVAL(vwv + 7, 0, num_locks);

	state->bytes.iov_len = num_bytes;
	state->bytes.iov_base = talloc_array(state, uint8_t, num_bytes);
	if (tevent_req_nomem(state->bytes.iov_base, req)) {
		return tevent_req_post(req, ev);
	}

	p = cli_lockingx_put_locks(
		state->bytes.iov_base, large, num_unlocks, unlocks);
	cli_lockingx_put_locks(p, large, num_locks, locks);

	subreq = cli_smb_req_create(
		state, ev, cli, SMBlockingX, 0, 0, 8, vwv, 1, &state->bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_lockingx_done, req);
	*psmbreq = subreq;
	return req;
}

struct tevent_req *cli_lockingx_send(
	TALLOC_CTX *mem_ctx,
	struct tevent_context *ev,
	struct cli_state *cli,
	uint16_t fnum,
	uint8_t typeoflock,
	uint8_t newoplocklevel,
	int32_t timeout,
	uint16_t num_unlocks,
	const struct smb1_lock_element *unlocks,
	uint16_t num_locks,
	const struct smb1_lock_element *locks)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_lockingx_state *state = NULL;
	NTSTATUS status;

	req = cli_lockingx_create(
		mem_ctx,
		ev,
		cli,
		fnum,
		typeoflock,
		newoplocklevel,
		timeout,
		num_unlocks,
		unlocks,
		num_locks,
		locks,
		&subreq);
	if (req == NULL) {
		return NULL;
	}
	state = tevent_req_data(req, struct cli_lockingx_state);
	state->subreq = subreq;

	status = smb1cli_req_chain_submit(&subreq, 1);
	if (tevent_req_nterror(req, status)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_cancel_fn(req, cli_lockingx_cancel);
	return req;
}

static void cli_lockingx_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb_recv(
		subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static bool cli_lockingx_cancel(struct tevent_req *req)
{
	struct cli_lockingx_state *state = tevent_req_data(
		req, struct cli_lockingx_state);
	if (state->subreq == NULL) {
		return false;
	}
	return tevent_req_cancel(state->subreq);
}

NTSTATUS cli_lockingx_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_lockingx(
	struct cli_state *cli,
	uint16_t fnum,
	uint8_t typeoflock,
	uint8_t newoplocklevel,
	int32_t timeout,
	uint16_t num_unlocks,
	const struct smb1_lock_element *unlocks,
	uint16_t num_locks,
	const struct smb1_lock_element *locks)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_NO_MEMORY;
	unsigned int set_timeout = 0;
	unsigned int saved_timeout = 0;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		return NT_STATUS_INVALID_PARAMETER;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}

	if (timeout != 0) {
		if (timeout == -1) {
			set_timeout = 0x7FFFFFFF;
		} else {
			set_timeout = timeout + 2*1000;
		}
		saved_timeout = cli_set_timeout(cli, set_timeout);
	}

	req = cli_lockingx_send(
		frame,
		ev,
		cli,
		fnum,
		typeoflock,
		newoplocklevel,
		timeout,
		num_unlocks,
		unlocks,
		num_locks,
		locks);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_lockingx_recv(req);

	if (saved_timeout != 0) {
		cli_set_timeout(cli, saved_timeout);
	}
fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 send a lock with a specified locktype
 this is used for testing LOCKING_ANDX_CANCEL_LOCK
****************************************************************************/

NTSTATUS cli_locktype(struct cli_state *cli, uint16_t fnum,
		      uint32_t offset, uint32_t len,
		      int timeout, unsigned char locktype)
{
	struct smb1_lock_element lck = {
		.pid = cli_getpid(cli),
		.offset = offset,
		.length = len,
	};
	NTSTATUS status;

	status = cli_lockingx(
		cli,				/* cli */
		fnum,				/* fnum */
		locktype,			/* typeoflock */
		0,				/* newoplocklevel */
		timeout,			/* timeout */
		0,				/* num_unlocks */
		NULL,				/* unlocks */
		1,				/* num_locks */
		&lck);				/* locks */
	return status;
}

/****************************************************************************
 Lock a file.
 note that timeout is in units of 2 milliseconds
****************************************************************************/

NTSTATUS cli_lock32(struct cli_state *cli, uint16_t fnum,
		  uint32_t offset, uint32_t len, int timeout,
		  enum brl_type lock_type)
{
	NTSTATUS status;

	status = cli_locktype(cli, fnum, offset, len, timeout,
			      (lock_type == READ_LOCK? 1 : 0));
	return status;
}

/****************************************************************************
 Unlock a file.
****************************************************************************/

struct cli_unlock_state {
	struct smb1_lock_element lck;
};

static void cli_unlock_done(struct tevent_req *subreq);

struct tevent_req *cli_unlock_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				uint16_t fnum,
				uint64_t offset,
				uint64_t len)

{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_unlock_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state, struct cli_unlock_state);
	if (req == NULL) {
		return NULL;
	}
	state->lck = (struct smb1_lock_element) {
		.pid = cli_getpid(cli),
		.offset = offset,
		.length = len,
	};

	subreq = cli_lockingx_send(
		state,				/* mem_ctx */
		ev,				/* tevent_context */
		cli,				/* cli */
		fnum,				/* fnum */
		0,				/* typeoflock */
		0,				/* newoplocklevel */
		0,				/* timeout */
		1,				/* num_unlocks */
		&state->lck,			/* unlocks */
		0,				/* num_locks */
		NULL);				/* locks */
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_unlock_done, req);
	return req;
}

static void cli_unlock_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_lockingx_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_unlock_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_unlock(struct cli_state *cli,
			uint16_t fnum,
			uint32_t offset,
			uint32_t len)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_unlock_send(frame, ev, cli,
			fnum, offset, len);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_unlock_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Get/unlock a POSIX lock on a file - internal function.
****************************************************************************/

struct posix_lock_state {
        uint16_t setup;
	uint8_t param[4];
        uint8_t data[POSIX_LOCK_DATA_SIZE];
};

static void cli_posix_unlock_internal_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_trans_recv(subreq, NULL, NULL, NULL, 0, NULL,
					 NULL, 0, NULL, NULL, 0, NULL);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static struct tevent_req *cli_posix_lock_internal_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					uint16_t fnum,
					uint64_t offset,
					uint64_t len,
					bool wait_lock,
					enum brl_type lock_type)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct posix_lock_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state, struct posix_lock_state);
	if (req == NULL) {
		return NULL;
	}

	/* Setup setup word. */
	SSVAL(&state->setup, 0, TRANSACT2_SETFILEINFO);

	/* Setup param array. */
	SSVAL(&state->param, 0, fnum);
	SSVAL(&state->param, 2, SMB_SET_POSIX_LOCK);

	/* Setup data array. */
	switch (lock_type) {
		case READ_LOCK:
			SSVAL(&state->data, POSIX_LOCK_TYPE_OFFSET,
				POSIX_LOCK_TYPE_READ);
			break;
		case WRITE_LOCK:
			SSVAL(&state->data, POSIX_LOCK_TYPE_OFFSET,
				POSIX_LOCK_TYPE_WRITE);
			break;
		case UNLOCK_LOCK:
			SSVAL(&state->data, POSIX_LOCK_TYPE_OFFSET,
				POSIX_LOCK_TYPE_UNLOCK);
			break;
		default:
			return NULL;
	}

	if (wait_lock) {
		SSVAL(&state->data, POSIX_LOCK_FLAGS_OFFSET,
				POSIX_LOCK_FLAG_WAIT);
	} else {
		SSVAL(state->data, POSIX_LOCK_FLAGS_OFFSET,
				POSIX_LOCK_FLAG_NOWAIT);
	}

	SIVAL(&state->data, POSIX_LOCK_PID_OFFSET, cli_getpid(cli));
	SOFF_T(&state->data, POSIX_LOCK_START_OFFSET, offset);
	SOFF_T(&state->data, POSIX_LOCK_LEN_OFFSET, len);

	subreq = cli_trans_send(state,                  /* mem ctx. */
				ev,                     /* event ctx. */
				cli,                    /* cli_state. */
				0,			/* additional_flags2 */
				SMBtrans2,              /* cmd. */
				NULL,                   /* pipe name. */
				-1,                     /* fid. */
				0,                      /* function. */
				0,                      /* flags. */
				&state->setup,          /* setup. */
				1,                      /* num setup uint16_t words. */
				0,                      /* max returned setup. */
				state->param,           /* param. */
				4,			/* num param. */
				2,                      /* max returned param. */
				state->data,            /* data. */
				POSIX_LOCK_DATA_SIZE,   /* num data. */
				0);                     /* max returned data. */

	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_unlock_internal_done, req);
	return req;
}

/****************************************************************************
 POSIX Lock a file.
****************************************************************************/

struct tevent_req *cli_posix_lock_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					uint16_t fnum,
					uint64_t offset,
					uint64_t len,
					bool wait_lock,
					enum brl_type lock_type)
{
	return cli_posix_lock_internal_send(mem_ctx, ev, cli, fnum, offset, len,
					wait_lock, lock_type);
}

NTSTATUS cli_posix_lock_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_posix_lock(struct cli_state *cli, uint16_t fnum,
			uint64_t offset, uint64_t len,
			bool wait_lock, enum brl_type lock_type)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	if (lock_type != READ_LOCK && lock_type != WRITE_LOCK) {
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_lock_send(frame,
				ev,
				cli,
				fnum,
				offset,
				len,
				wait_lock,
				lock_type);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_lock_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 POSIX Unlock a file.
****************************************************************************/

struct tevent_req *cli_posix_unlock_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					uint16_t fnum,
					uint64_t offset,
					uint64_t len)
{
	return cli_posix_lock_internal_send(mem_ctx, ev, cli, fnum, offset, len,
					false, UNLOCK_LOCK);
}

NTSTATUS cli_posix_unlock_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_posix_unlock(struct cli_state *cli, uint16_t fnum, uint64_t offset, uint64_t len)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_unlock_send(frame,
				ev,
				cli,
				fnum,
				offset,
				len);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_unlock_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Do a SMBgetattrE call.
****************************************************************************/

static void cli_getattrE_done(struct tevent_req *subreq);

struct cli_getattrE_state {
	uint16_t vwv[1];
	int zone_offset;
	uint32_t attr;
	off_t size;
	time_t change_time;
	time_t access_time;
	time_t write_time;
};

struct tevent_req *cli_getattrE_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				uint16_t fnum)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_getattrE_state *state = NULL;
	uint8_t additional_flags = 0;

	req = tevent_req_create(mem_ctx, &state, struct cli_getattrE_state);
	if (req == NULL) {
		return NULL;
	}

	state->zone_offset = smb1cli_conn_server_time_zone(cli->conn);
	SSVAL(state->vwv+0,0,fnum);

	subreq = cli_smb_send(state, ev, cli, SMBgetattrE, additional_flags, 0,
			      1, state->vwv, 0, NULL);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_getattrE_done, req);
	return req;
}

static void cli_getattrE_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_getattrE_state *state = tevent_req_data(
		req, struct cli_getattrE_state);
	uint8_t wct;
	uint16_t *vwv = NULL;
	NTSTATUS status;

	status = cli_smb_recv(subreq, state, NULL, 11, &wct, &vwv,
			      NULL, NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}

	state->size = (off_t)IVAL(vwv+6,0);
	state->attr = SVAL(vwv+10,0);
	state->change_time = make_unix_date2(vwv+0, state->zone_offset);
	state->access_time = make_unix_date2(vwv+2, state->zone_offset);
	state->write_time = make_unix_date2(vwv+4, state->zone_offset);

	tevent_req_done(req);
}

NTSTATUS cli_getattrE_recv(struct tevent_req *req,
			uint32_t *pattr,
			off_t *size,
			time_t *change_time,
			time_t *access_time,
			time_t *write_time)
{
	struct cli_getattrE_state *state = tevent_req_data(
				req, struct cli_getattrE_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	if (pattr) {
		*pattr = state->attr;
	}
	if (size) {
		*size = state->size;
	}
	if (change_time) {
		*change_time = state->change_time;
	}
	if (access_time) {
		*access_time = state->access_time;
	}
	if (write_time) {
		*write_time = state->write_time;
	}
	return NT_STATUS_OK;
}

/****************************************************************************
 Do a SMBgetatr call
****************************************************************************/

static void cli_getatr_done(struct tevent_req *subreq);

struct cli_getatr_state {
	int zone_offset;
	uint32_t attr;
	off_t size;
	time_t write_time;
};

struct tevent_req *cli_getatr_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				const char *fname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_getatr_state *state = NULL;
	uint8_t additional_flags = 0;
	uint16_t additional_flags2 = 0;
	uint8_t *bytes = NULL;

	req = tevent_req_create(mem_ctx, &state, struct cli_getatr_state);
	if (req == NULL) {
		return NULL;
	}

	state->zone_offset = smb1cli_conn_server_time_zone(cli->conn);

	bytes = talloc_array(state, uint8_t, 1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}
	bytes[0] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), fname,
				   strlen(fname)+1, NULL);

	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(fname, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	subreq = cli_smb_send(state, ev, cli, SMBgetatr, additional_flags,
			additional_flags2,
			0, NULL, talloc_get_size(bytes), bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_getatr_done, req);
	return req;
}

static void cli_getatr_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_getatr_state *state = tevent_req_data(
		req, struct cli_getatr_state);
	uint8_t wct;
	uint16_t *vwv = NULL;
	NTSTATUS status;

	status = cli_smb_recv(subreq, state, NULL, 4, &wct, &vwv, NULL,
			      NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}

	state->attr = SVAL(vwv+0,0);
	state->size = (off_t)IVAL(vwv+3,0);
	state->write_time = make_unix_date3(vwv+1, state->zone_offset);

	tevent_req_done(req);
}

NTSTATUS cli_getatr_recv(struct tevent_req *req,
			uint32_t *pattr,
			off_t *size,
			time_t *write_time)
{
	struct cli_getatr_state *state = tevent_req_data(
				req, struct cli_getatr_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	if (pattr) {
		*pattr = state->attr;
	}
	if (size) {
		*size = state->size;
	}
	if (write_time) {
		*write_time = state->write_time;
	}
	return NT_STATUS_OK;
}

NTSTATUS cli_getatr(struct cli_state *cli,
			const char *fname,
			uint32_t *pattr,
			off_t *size,
			time_t *write_time)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		return cli_smb2_getatr(cli,
					fname,
					pattr,
					size,
					write_time);
	}

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_getatr_send(frame, ev, cli, fname);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_getatr_recv(req,
				pattr,
				size,
				write_time);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Do a SMBsetattrE call.
****************************************************************************/

static void cli_setattrE_done(struct tevent_req *subreq);

struct cli_setattrE_state {
	uint16_t vwv[7];
};

struct tevent_req *cli_setattrE_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				uint16_t fnum,
				time_t change_time,
				time_t access_time,
				time_t write_time)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_setattrE_state *state = NULL;
	uint8_t additional_flags = 0;

	req = tevent_req_create(mem_ctx, &state, struct cli_setattrE_state);
	if (req == NULL) {
		return NULL;
	}

	SSVAL(state->vwv+0, 0, fnum);
	push_dos_date2((uint8_t *)&state->vwv[1], 0, change_time,
		       smb1cli_conn_server_time_zone(cli->conn));
	push_dos_date2((uint8_t *)&state->vwv[3], 0, access_time,
		       smb1cli_conn_server_time_zone(cli->conn));
	push_dos_date2((uint8_t *)&state->vwv[5], 0, write_time,
		       smb1cli_conn_server_time_zone(cli->conn));

	subreq = cli_smb_send(state, ev, cli, SMBsetattrE, additional_flags, 0,
			      7, state->vwv, 0, NULL);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_setattrE_done, req);
	return req;
}

static void cli_setattrE_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	NTSTATUS status;

	status = cli_smb_recv(subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_setattrE_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_setattrE(struct cli_state *cli,
			uint16_t fnum,
			time_t change_time,
			time_t access_time,
			time_t write_time)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		return cli_smb2_setattrE(cli,
					fnum,
					change_time,
					access_time,
					write_time);
	}

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_setattrE_send(frame, ev,
			cli,
			fnum,
			change_time,
			access_time,
			write_time);

	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_setattrE_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Do a SMBsetatr call.
****************************************************************************/

static void cli_setatr_done(struct tevent_req *subreq);

struct cli_setatr_state {
	uint16_t vwv[8];
};

struct tevent_req *cli_setatr_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				const char *fname,
				uint32_t attr,
				time_t mtime)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_setatr_state *state = NULL;
	uint8_t additional_flags = 0;
	uint16_t additional_flags2 = 0;
	uint8_t *bytes = NULL;

	req = tevent_req_create(mem_ctx, &state, struct cli_setatr_state);
	if (req == NULL) {
		return NULL;
	}

	if (attr & 0xFFFF0000) {
		/*
		 * Don't allow attributes greater than
		 * 16-bits for a 16-bit protocol value.
		 */
		if (tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER)) {
			return tevent_req_post(req, ev);
		}
	}

	SSVAL(state->vwv+0, 0, attr);
	push_dos_date3((uint8_t *)&state->vwv[1], 0, mtime, smb1cli_conn_server_time_zone(cli->conn));

	bytes = talloc_array(state, uint8_t, 1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}
	bytes[0] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), fname,
				   strlen(fname)+1, NULL);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}
	bytes = talloc_realloc(state, bytes, uint8_t,
			talloc_get_size(bytes)+1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	bytes[talloc_get_size(bytes)-1] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), "",
				   1, NULL);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(fname, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	subreq = cli_smb_send(state, ev, cli, SMBsetatr, additional_flags,
			additional_flags2,
			8, state->vwv, talloc_get_size(bytes), bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_setatr_done, req);
	return req;
}

static void cli_setatr_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	NTSTATUS status;

	status = cli_smb_recv(subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_setatr_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_setatr(struct cli_state *cli,
		const char *fname,
		uint32_t attr,
		time_t mtime)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		return cli_smb2_setatr(cli,
					fname,
					attr,
					mtime);
	}

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_setatr_send(frame, ev, cli, fname, attr, mtime);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_setatr_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Check for existence of a dir.
****************************************************************************/

static void cli_chkpath_done(struct tevent_req *subreq);
static void cli_chkpath_opened(struct tevent_req *subreq);
static void cli_chkpath_closed(struct tevent_req *subreq);

struct cli_chkpath_state {
	struct tevent_context *ev;
	struct cli_state *cli;
};

struct tevent_req *cli_chkpath_send(TALLOC_CTX *mem_ctx,
				  struct tevent_context *ev,
				  struct cli_state *cli,
				  const char *fname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_chkpath_state *state = NULL;
	uint8_t additional_flags = 0;
	uint16_t additional_flags2 = 0;
	uint8_t *bytes = NULL;

	req = tevent_req_create(mem_ctx, &state, struct cli_chkpath_state);
	if (req == NULL) {
		return NULL;
	}
	state->ev = ev;
	state->cli = cli;

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_NT1) {
		subreq = cli_ntcreate_send(
			state,			  /* mem_ctx */
			state->ev,		  /* ev */
			state->cli,		  /* cli */
			fname,			  /* fname */
			0,			  /* create_flags */
			FILE_READ_ATTRIBUTES,	  /* desired_access */
			FILE_ATTRIBUTE_DIRECTORY, /* FileAttributes */
			FILE_SHARE_READ|
			FILE_SHARE_WRITE|
			FILE_SHARE_DELETE, /* share_access */
			FILE_OPEN,	/* CreateDisposition */
			FILE_DIRECTORY_FILE, /* CreateOptions */
			SMB2_IMPERSONATION_IMPERSONATION,
			0);		/* SecurityFlags */
		if (tevent_req_nomem(subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(subreq, cli_chkpath_opened, req);
		return req;
	}

	bytes = talloc_array(state, uint8_t, 1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}
	bytes[0] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), fname,
				   strlen(fname)+1, NULL);

	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(fname, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	subreq = cli_smb_send(state, ev, cli, SMBcheckpath, additional_flags,
			additional_flags2,
			0, NULL, talloc_get_size(bytes), bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_chkpath_done, req);
	return req;
}

static void cli_chkpath_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_smb_recv(
		subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static void cli_chkpath_opened(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_chkpath_state *state = tevent_req_data(
		req, struct cli_chkpath_state);
	NTSTATUS status;
	uint16_t fnum;

	status = cli_ntcreate_recv(subreq, &fnum, NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}

	subreq = cli_close_send(state, state->ev, state->cli, fnum);
	if (tevent_req_nomem(subreq, req)) {
		return;
	}
	tevent_req_set_callback(subreq, cli_chkpath_closed, req);
}

static void cli_chkpath_closed(struct tevent_req *subreq)
{
	NTSTATUS status = cli_close_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_chkpath_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_chkpath(struct cli_state *cli, const char *path)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	char *path2 = NULL;
	NTSTATUS status = NT_STATUS_OK;

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	path2 = talloc_strdup(frame, path);
	if (!path2) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}
	trim_char(path2,'\0','\\');
	if (!*path2) {
		path2 = talloc_strdup(frame, "\\");
		if (!path2) {
			status = NT_STATUS_NO_MEMORY;
			goto fail;
		}
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_chkpath_send(frame, ev, cli, path2);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_chkpath_recv(req);
	cli->raw_status = status; /* cli_smb2_chkpath_recv doesn't set this */

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Query disk space.
****************************************************************************/

static void cli_dskattr_done(struct tevent_req *subreq);

struct cli_dskattr_state {
	int bsize;
	int total;
	int avail;
};

struct tevent_req *cli_dskattr_send(TALLOC_CTX *mem_ctx,
				  struct tevent_context *ev,
				  struct cli_state *cli)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_dskattr_state *state = NULL;
	uint8_t additional_flags = 0;

	req = tevent_req_create(mem_ctx, &state, struct cli_dskattr_state);
	if (req == NULL) {
		return NULL;
	}

	subreq = cli_smb_send(state, ev, cli, SMBdskattr, additional_flags, 0,
			      0, NULL, 0, NULL);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_dskattr_done, req);
	return req;
}

static void cli_dskattr_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_dskattr_state *state = tevent_req_data(
		req, struct cli_dskattr_state);
	uint8_t wct;
	uint16_t *vwv = NULL;
	NTSTATUS status;

	status = cli_smb_recv(subreq, state, NULL, 4, &wct, &vwv, NULL,
			      NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	state->bsize = SVAL(vwv+1, 0)*SVAL(vwv+2,0);
	state->total = SVAL(vwv+0, 0);
	state->avail = SVAL(vwv+3, 0);
	tevent_req_done(req);
}

NTSTATUS cli_dskattr_recv(struct tevent_req *req, int *bsize, int *total, int *avail)
{
	struct cli_dskattr_state *state = tevent_req_data(
				req, struct cli_dskattr_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	*bsize = state->bsize;
	*total = state->total;
	*avail = state->avail;
	return NT_STATUS_OK;
}

NTSTATUS cli_dskattr(struct cli_state *cli, int *bsize, int *total, int *avail)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_dskattr_send(frame, ev, cli);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_dskattr_recv(req, bsize, total, avail);

 fail:
	TALLOC_FREE(frame);
	return status;
}

NTSTATUS cli_disk_size(struct cli_state *cli, const char *path, uint64_t *bsize,
		       uint64_t *total, uint64_t *avail)
{
	uint64_t sectors_per_block;
	uint64_t bytes_per_sector;
	int old_bsize = 0, old_total = 0, old_avail = 0;
	NTSTATUS status;

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		return cli_smb2_dskattr(cli, path, bsize, total, avail);
	}

	/*
	 * Try the trans2 disk full size info call first.
	 * We already use this in SMBC_fstatvfs_ctx().
	 * Ignore 'actual_available_units' as we only
	 * care about the quota for the caller.
	 */

	status = cli_get_fs_full_size_info(cli,
			total,
			avail,
			NULL,
			&sectors_per_block,
			&bytes_per_sector);

        /* Try and cope will all varients of "we don't do this call"
           and fall back to cli_dskattr. */

	if (NT_STATUS_EQUAL(status,NT_STATUS_NOT_IMPLEMENTED) ||
			NT_STATUS_EQUAL(status,NT_STATUS_NOT_SUPPORTED) ||
			NT_STATUS_EQUAL(status,NT_STATUS_INVALID_INFO_CLASS) ||
			NT_STATUS_EQUAL(status,NT_STATUS_PROCEDURE_NOT_FOUND) ||
			NT_STATUS_EQUAL(status,NT_STATUS_INVALID_LEVEL) ||
			NT_STATUS_EQUAL(status,NT_STATUS_INVALID_PARAMETER) ||
			NT_STATUS_EQUAL(status,NT_STATUS_INVALID_DEVICE_REQUEST) ||
			NT_STATUS_EQUAL(status,NT_STATUS_INVALID_DEVICE_STATE) ||
			NT_STATUS_EQUAL(status,NT_STATUS_CTL_FILE_NOT_SUPPORTED) ||
			NT_STATUS_EQUAL(status,NT_STATUS_UNSUCCESSFUL)) {
		goto try_dskattr;
	}

	if (!NT_STATUS_IS_OK(status)) {
		return status;
	}

	if (bsize) {
		*bsize = sectors_per_block *
			 bytes_per_sector;
	}

	return NT_STATUS_OK;

  try_dskattr:

	/* Old SMB1 core protocol fallback. */
	status = cli_dskattr(cli, &old_bsize, &old_total, &old_avail);
	if (!NT_STATUS_IS_OK(status)) {
		return status;
	}
	if (bsize) {
		*bsize = (uint64_t)old_bsize;
	}
	if (total) {
		*total = (uint64_t)old_total;
	}
	if (avail) {
		*avail = (uint64_t)old_avail;
	}
	return NT_STATUS_OK;
}

/****************************************************************************
 Create and open a temporary file.
****************************************************************************/

static void cli_ctemp_done(struct tevent_req *subreq);

struct ctemp_state {
	uint16_t vwv[3];
	char *ret_path;
	uint16_t fnum;
};

struct tevent_req *cli_ctemp_send(TALLOC_CTX *mem_ctx,
				struct tevent_context *ev,
				struct cli_state *cli,
				const char *path)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct ctemp_state *state = NULL;
	uint8_t additional_flags = 0;
	uint16_t additional_flags2 = 0;
	uint8_t *bytes = NULL;

	req = tevent_req_create(mem_ctx, &state, struct ctemp_state);
	if (req == NULL) {
		return NULL;
	}

	SSVAL(state->vwv,0,0);
	SIVALS(state->vwv+1,0,-1);

	bytes = talloc_array(state, uint8_t, 1);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}
	bytes[0] = 4;
	bytes = smb_bytes_push_str(bytes, smbXcli_conn_use_unicode(cli->conn), path,
				   strlen(path)+1, NULL);
	if (tevent_req_nomem(bytes, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(path, NULL, NULL, NULL)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	subreq = cli_smb_send(state, ev, cli, SMBctemp, additional_flags,
			additional_flags2,
			3, state->vwv, talloc_get_size(bytes), bytes);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_ctemp_done, req);
	return req;
}

static void cli_ctemp_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
				subreq, struct tevent_req);
	struct ctemp_state *state = tevent_req_data(
				req, struct ctemp_state);
	NTSTATUS status;
	uint8_t wcnt;
	uint16_t *vwv;
	uint32_t num_bytes = 0;
	uint8_t *bytes = NULL;

	status = cli_smb_recv(subreq, state, NULL, 1, &wcnt, &vwv,
			      &num_bytes, &bytes);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}

	state->fnum = SVAL(vwv+0, 0);

	/* From W2K3, the result is just the ASCII name */
	if (num_bytes < 2) {
		tevent_req_nterror(req, NT_STATUS_DATA_ERROR);
		return;
	}

	if (pull_string_talloc(state,
			NULL,
			0,
			&state->ret_path,
			bytes,
			num_bytes,
			STR_ASCII) == 0) {
		tevent_req_nterror(req, NT_STATUS_NO_MEMORY);
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_ctemp_recv(struct tevent_req *req,
			TALLOC_CTX *ctx,
			uint16_t *pfnum,
			char **outfile)
{
	struct ctemp_state *state = tevent_req_data(req,
			struct ctemp_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	*pfnum = state->fnum;
	*outfile = talloc_strdup(ctx, state->ret_path);
	if (!*outfile) {
		return NT_STATUS_NO_MEMORY;
	}
	return NT_STATUS_OK;
}

NTSTATUS cli_ctemp(struct cli_state *cli,
			TALLOC_CTX *ctx,
			const char *path,
			uint16_t *pfnum,
			char **out_path)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_ctemp_send(frame, ev, cli, path);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_ctemp_recv(req, ctx, pfnum, out_path);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/*
   send a raw ioctl - used by the torture code
*/
NTSTATUS cli_raw_ioctl(struct cli_state *cli, uint16_t fnum, uint32_t code, DATA_BLOB *blob)
{
	uint16_t vwv[3];
	NTSTATUS status;

	SSVAL(vwv+0, 0, fnum);
	SSVAL(vwv+1, 0, code>>16);
	SSVAL(vwv+2, 0, (code&0xFFFF));

	status = cli_smb(talloc_tos(), cli, SMBioctl, 0, 3, vwv, 0, NULL,
			 NULL, 0, NULL, NULL, NULL, NULL);
	if (!NT_STATUS_IS_OK(status)) {
		return status;
	}
	*blob = data_blob_null;
	return NT_STATUS_OK;
}

/*********************************************************
 Set an extended attribute utility fn.
*********************************************************/

static NTSTATUS cli_set_ea(struct cli_state *cli, uint16_t setup_val,
			   uint8_t *param, unsigned int param_len,
			   const char *ea_name,
			   const char *ea_val, size_t ea_len)
{
	uint16_t setup[1];
	unsigned int data_len = 0;
	uint8_t *data = NULL;
	char *p;
	size_t ea_namelen = strlen(ea_name);
	NTSTATUS status;

	SSVAL(setup, 0, setup_val);

	if (ea_namelen == 0 && ea_len == 0) {
		data_len = 4;
		data = talloc_array(talloc_tos(),
				uint8_t,
				data_len);
		if (!data) {
			return NT_STATUS_NO_MEMORY;
		}
		p = (char *)data;
		SIVAL(p,0,data_len);
	} else {
		data_len = 4 + 4 + ea_namelen + 1 + ea_len;
		data = talloc_array(talloc_tos(),
				uint8_t,
				data_len);
		if (!data) {
			return NT_STATUS_NO_MEMORY;
		}
		p = (char *)data;
		SIVAL(p,0,data_len);
		p += 4;
		SCVAL(p, 0, 0); /* EA flags. */
		SCVAL(p, 1, ea_namelen);
		SSVAL(p, 2, ea_len);
		memcpy(p+4, ea_name, ea_namelen+1); /* Copy in the name. */
		memcpy(p+4+ea_namelen+1, ea_val, ea_len);
	}

	/*
	 * FIXME - if we want to do previous version path
	 * processing on an EA set call we need to turn this
	 * into calls to cli_trans_send()/cli_trans_recv()
	 * with a temporary event context, as cli_trans_send()
	 * have access to the additional_flags2 needed to
	 * send @GMT- paths. JRA.
	 */

	status = cli_trans(talloc_tos(), cli, SMBtrans2, NULL, -1, 0, 0,
			   setup, 1, 0,
			   param, param_len, 2,
			   data,  data_len, 0,
			   NULL,
			   NULL, 0, NULL, /* rsetup */
			   NULL, 0, NULL, /* rparam */
			   NULL, 0, NULL); /* rdata */
	talloc_free(data);
	return status;
}

/*********************************************************
 Set an extended attribute on a pathname.
*********************************************************/

NTSTATUS cli_set_ea_path(struct cli_state *cli, const char *path,
			 const char *ea_name, const char *ea_val,
			 size_t ea_len)
{
	unsigned int param_len = 0;
	uint8_t *param;
	NTSTATUS status;
	TALLOC_CTX *frame = NULL;

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		return cli_smb2_set_ea_path(cli,
					path,
					ea_name,
					ea_val,
					ea_len);
	}

	frame = talloc_stackframe();

	param = talloc_array(frame, uint8_t, 6);
	if (!param) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}
	SSVAL(param,0,SMB_INFO_SET_EA);
	SSVAL(param,2,0);
	SSVAL(param,4,0);

	param = trans2_bytes_push_str(param, smbXcli_conn_use_unicode(cli->conn),
				      path, strlen(path)+1,
				      NULL);
	param_len = talloc_get_size(param);

	status = cli_set_ea(cli, TRANSACT2_SETPATHINFO, param, param_len,
			    ea_name, ea_val, ea_len);

  fail:

	TALLOC_FREE(frame);
	return status;
}

/*********************************************************
 Set an extended attribute on an fnum.
*********************************************************/

NTSTATUS cli_set_ea_fnum(struct cli_state *cli, uint16_t fnum,
			 const char *ea_name, const char *ea_val,
			 size_t ea_len)
{
	uint8_t param[6] = { 0, };

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		return cli_smb2_set_ea_fnum(cli,
					fnum,
					ea_name,
					ea_val,
					ea_len);
	}

	SSVAL(param,0,fnum);
	SSVAL(param,2,SMB_INFO_SET_EA);

	return cli_set_ea(cli, TRANSACT2_SETFILEINFO, param, 6,
			  ea_name, ea_val, ea_len);
}

/*********************************************************
 Get an extended attribute list utility fn.
*********************************************************/

static bool parse_ea_blob(TALLOC_CTX *ctx, const uint8_t *rdata,
			  size_t rdata_len,
			  size_t *pnum_eas, struct ea_struct **pea_list)
{
	struct ea_struct *ea_list = NULL;
	size_t num_eas;
	size_t ea_size;
	const uint8_t *p;

	if (rdata_len < 4) {
		return false;
	}

	ea_size = (size_t)IVAL(rdata,0);
	if (ea_size > rdata_len) {
		return false;
	}

	if (ea_size == 0) {
		/* No EA's present. */
		*pnum_eas = 0;
		*pea_list = NULL;
		return true;
	}

	p = rdata + 4;
	ea_size -= 4;

	/* Validate the EA list and count it. */
	for (num_eas = 0; ea_size >= 4; num_eas++) {
		unsigned int ea_namelen = CVAL(p,1);
		unsigned int ea_valuelen = SVAL(p,2);
		if (ea_namelen == 0) {
			return false;
		}
		if (4 + ea_namelen + 1 + ea_valuelen > ea_size) {
			return false;
		}
		ea_size -= 4 + ea_namelen + 1 + ea_valuelen;
		p += 4 + ea_namelen + 1 + ea_valuelen;
	}

	if (num_eas == 0) {
		*pnum_eas = 0;
		*pea_list = NULL;
		return true;
	}

	*pnum_eas = num_eas;
	if (!pea_list) {
		/* Caller only wants number of EA's. */
		return true;
	}

	ea_list = talloc_array(ctx, struct ea_struct, num_eas);
	if (!ea_list) {
		return false;
	}

	p = rdata + 4;

	for (num_eas = 0; num_eas < *pnum_eas; num_eas++ ) {
		struct ea_struct *ea = &ea_list[num_eas];
		fstring unix_ea_name;
		unsigned int ea_namelen = CVAL(p,1);
		unsigned int ea_valuelen = SVAL(p,2);

		ea->flags = CVAL(p,0);
		unix_ea_name[0] = '\0';
		pull_ascii(unix_ea_name, p + 4, sizeof(unix_ea_name), rdata_len - PTR_DIFF(p+4, rdata), STR_TERMINATE);
		ea->name = talloc_strdup(ea_list, unix_ea_name);
		if (!ea->name) {
			goto fail;
		}
		/* Ensure the value is null terminated (in case it's a string). */
		ea->value = data_blob_talloc(ea_list, NULL, ea_valuelen + 1);
		if (!ea->value.data) {
			goto fail;
		}
		if (ea_valuelen) {
			memcpy(ea->value.data, p+4+ea_namelen+1, ea_valuelen);
		}
		ea->value.data[ea_valuelen] = 0;
		ea->value.length--;
		p += 4 + ea_namelen + 1 + ea_valuelen;
	}

	*pea_list = ea_list;
	return true;

fail:
	TALLOC_FREE(ea_list);
	return false;
}

/*********************************************************
 Get an extended attribute list from a pathname.
*********************************************************/

struct cli_get_ea_list_path_state {
	uint32_t num_data;
	uint8_t *data;
};

static void cli_get_ea_list_path_done(struct tevent_req *subreq);

struct tevent_req *cli_get_ea_list_path_send(TALLOC_CTX *mem_ctx,
					     struct tevent_context *ev,
					     struct cli_state *cli,
					     const char *fname)
{
	struct tevent_req *req, *subreq;
	struct cli_get_ea_list_path_state *state;

	req = tevent_req_create(mem_ctx, &state,
				struct cli_get_ea_list_path_state);
	if (req == NULL) {
		return NULL;
	}
	subreq = cli_qpathinfo_send(state, ev, cli, fname,
				    SMB_INFO_QUERY_ALL_EAS, 4,
				    CLI_BUFFER_SIZE);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_get_ea_list_path_done, req);
	return req;
}

static void cli_get_ea_list_path_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
				subreq, struct tevent_req);
	struct cli_get_ea_list_path_state *state = tevent_req_data(
		req, struct cli_get_ea_list_path_state);
	NTSTATUS status;

	status = cli_qpathinfo_recv(subreq, state, &state->data,
				    &state->num_data);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_get_ea_list_path_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
				   size_t *pnum_eas, struct ea_struct **peas)
{
	struct cli_get_ea_list_path_state *state = tevent_req_data(
		req, struct cli_get_ea_list_path_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	if (!parse_ea_blob(mem_ctx, state->data, state->num_data,
			   pnum_eas, peas)) {
		return NT_STATUS_INVALID_NETWORK_RESPONSE;
	}
	return NT_STATUS_OK;
}

NTSTATUS cli_get_ea_list_path(struct cli_state *cli, const char *path,
		TALLOC_CTX *ctx,
		size_t *pnum_eas,
		struct ea_struct **pea_list)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		return cli_smb2_get_ea_list_path(cli,
					path,
					ctx,
					pnum_eas,
					pea_list);
	}

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_get_ea_list_path_send(frame, ev, cli, path);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_get_ea_list_path_recv(req, ctx, pnum_eas, pea_list);
 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 Convert open "flags" arg to uint32_t on wire.
****************************************************************************/

static uint32_t open_flags_to_wire(int flags)
{
	int open_mode = flags & O_ACCMODE;
	uint32_t ret = 0;

	switch (open_mode) {
		case O_WRONLY:
			ret |= SMB_O_WRONLY;
			break;
		case O_RDWR:
			ret |= SMB_O_RDWR;
			break;
		default:
		case O_RDONLY:
			ret |= SMB_O_RDONLY;
			break;
	}

	if (flags & O_CREAT) {
		ret |= SMB_O_CREAT;
	}
	if (flags & O_EXCL) {
		ret |= SMB_O_EXCL;
	}
	if (flags & O_TRUNC) {
		ret |= SMB_O_TRUNC;
	}
#if defined(O_SYNC)
	if (flags & O_SYNC) {
		ret |= SMB_O_SYNC;
	}
#endif /* O_SYNC */
	if (flags & O_APPEND) {
		ret |= SMB_O_APPEND;
	}
#if defined(O_DIRECT)
	if (flags & O_DIRECT) {
		ret |= SMB_O_DIRECT;
	}
#endif
#if defined(O_DIRECTORY)
	if (flags & O_DIRECTORY) {
		ret |= SMB_O_DIRECTORY;
	}
#endif
	return ret;
}

/****************************************************************************
 Open a file - POSIX semantics. Returns fnum. Doesn't request oplock.
****************************************************************************/

struct cli_posix_open_internal_state {
	uint16_t setup;
	uint8_t *param;
	uint8_t data[18];
	uint16_t fnum; /* Out */
};

static void cli_posix_open_internal_done(struct tevent_req *subreq);

static struct tevent_req *cli_posix_open_internal_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname,
					uint32_t wire_flags,
					mode_t mode)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_open_internal_state *state = NULL;

	req = tevent_req_create(
		mem_ctx, &state, struct cli_posix_open_internal_state);
	if (req == NULL) {
		return NULL;
	}

	/* Setup setup word. */
	SSVAL(&state->setup, 0, TRANSACT2_SETPATHINFO);

	/* Setup param array. */
	state->param = talloc_zero_array(state, uint8_t, 6);
	if (tevent_req_nomem(state->param, req)) {
		return tevent_req_post(req, ev);
	}
	SSVAL(state->param, 0, SMB_POSIX_PATH_OPEN);

	state->param = trans2_bytes_push_str(
		state->param,
		smbXcli_conn_use_unicode(cli->conn),
		fname,
		strlen(fname)+1,
		NULL);

	if (tevent_req_nomem(state->param, req)) {
		return tevent_req_post(req, ev);
	}

	SIVAL(state->data,0,0); /* No oplock. */
	SIVAL(state->data,4,wire_flags);
	SIVAL(state->data,8,unix_perms_to_wire(mode));
	SIVAL(state->data,12,0); /* Top bits of perms currently undefined. */
	SSVAL(state->data,16,SMB_NO_INFO_LEVEL_RETURNED); /* No info level returned. */

	subreq = cli_trans_send(state,			/* mem ctx. */
				ev,			/* event ctx. */
				cli,			/* cli_state. */
				0,			/* additional_flags2 */
				SMBtrans2,		/* cmd. */
				NULL,			/* pipe name. */
				-1,			/* fid. */
				0,			/* function. */
				0,			/* flags. */
				&state->setup,		/* setup. */
				1,			/* num setup uint16_t words. */
				0,			/* max returned setup. */
				state->param,		/* param. */
				talloc_get_size(state->param),/* num param. */
				2,			/* max returned param. */
				state->data,		/* data. */
				18,			/* num data. */
				12);			/* max returned data. */

	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_open_internal_done, req);
	return req;
}

static void cli_posix_open_internal_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_posix_open_internal_state *state = tevent_req_data(
		req, struct cli_posix_open_internal_state);
	NTSTATUS status;
	uint8_t *data;
	uint32_t num_data;

	status = cli_trans_recv(
		subreq,
		state,
		NULL,
		NULL,
		0,
		NULL,
		NULL,
		0,
		NULL,
		&data,
		12,
		&num_data);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	state->fnum = SVAL(data,2);
	tevent_req_done(req);
}

static NTSTATUS cli_posix_open_internal_recv(struct tevent_req *req,
					     uint16_t *pfnum)
{
	struct cli_posix_open_internal_state *state = tevent_req_data(
		req, struct cli_posix_open_internal_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	*pfnum = state->fnum;
	return NT_STATUS_OK;
}

struct cli_posix_open_state {
	uint16_t fnum;
};

static void cli_posix_open_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_open_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname,
					int flags,
					mode_t mode)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_open_state *state = NULL;
	uint32_t wire_flags;

	req = tevent_req_create(mem_ctx, &state,
				struct cli_posix_open_state);
	if (req == NULL) {
		return NULL;
	}

	wire_flags = open_flags_to_wire(flags);

	subreq = cli_posix_open_internal_send(
		mem_ctx, ev, cli, fname, wire_flags, mode);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_open_done, req);
	return req;
}

static void cli_posix_open_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_posix_open_state *state = tevent_req_data(
		req, struct cli_posix_open_state);
	NTSTATUS status;

	status = cli_posix_open_internal_recv(subreq, &state->fnum);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_posix_open_recv(struct tevent_req *req, uint16_t *pfnum)
{
	struct cli_posix_open_state *state = tevent_req_data(
		req, struct cli_posix_open_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	*pfnum = state->fnum;
	return NT_STATUS_OK;
}

/****************************************************************************
 Open - POSIX semantics. Doesn't request oplock.
****************************************************************************/

NTSTATUS cli_posix_open(struct cli_state *cli, const char *fname,
			int flags, mode_t mode, uint16_t *pfnum)
{

	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_posix_open_send(
		frame, ev, cli, fname, flags, mode);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_posix_open_recv(req, pfnum);
 fail:
	TALLOC_FREE(frame);
	return status;
}

struct cli_posix_mkdir_state {
	struct tevent_context *ev;
	struct cli_state *cli;
};

static void cli_posix_mkdir_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_mkdir_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname,
					mode_t mode)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_mkdir_state *state = NULL;
	uint32_t wire_flags;

	req = tevent_req_create(
		mem_ctx, &state, struct cli_posix_mkdir_state);
	if (req == NULL) {
		return NULL;
	}
	state->ev = ev;
	state->cli = cli;

	wire_flags = SMB_O_CREAT | SMB_O_DIRECTORY;

	subreq = cli_posix_open_internal_send(
		mem_ctx, ev, cli, fname, wire_flags, mode);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_mkdir_done, req);
	return req;
}

static void cli_posix_mkdir_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	NTSTATUS status;
	uint16_t fnum;

	status = cli_posix_open_internal_recv(subreq, &fnum);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_posix_mkdir_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_posix_mkdir(struct cli_state *cli, const char *fname, mode_t mode)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_posix_mkdir_send(
		frame, ev, cli,	fname, mode);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_posix_mkdir_recv(req);
 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 unlink or rmdir - POSIX semantics.
****************************************************************************/

struct cli_posix_unlink_internal_state {
	uint8_t data[2];
};

static void cli_posix_unlink_internal_done(struct tevent_req *subreq);

static struct tevent_req *cli_posix_unlink_internal_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname,
					uint16_t level)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_unlink_internal_state *state = NULL;

	req = tevent_req_create(mem_ctx, &state,
				struct cli_posix_unlink_internal_state);
	if (req == NULL) {
		return NULL;
	}

	/* Setup data word. */
	SSVAL(state->data, 0, level);

	subreq = cli_setpathinfo_send(state, ev, cli,
				      SMB_POSIX_PATH_UNLINK,
				      fname,
				      state->data, sizeof(state->data));
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_unlink_internal_done, req);
	return req;
}

static void cli_posix_unlink_internal_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_setpathinfo_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

static NTSTATUS cli_posix_unlink_internal_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

struct cli_posix_unlink_state {
	uint8_t dummy;
};

static void cli_posix_unlink_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_unlink_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_unlink_state *state;

	req = tevent_req_create(
		mem_ctx, &state, struct cli_posix_unlink_state);
	if (req == NULL) {
		return NULL;
	}
	subreq = cli_posix_unlink_internal_send(
		mem_ctx, ev, cli, fname, SMB_POSIX_UNLINK_FILE_TARGET);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_unlink_done, req);
	return req;
}

static void cli_posix_unlink_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_posix_unlink_internal_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_posix_unlink_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

/****************************************************************************
 unlink - POSIX semantics.
****************************************************************************/

NTSTATUS cli_posix_unlink(struct cli_state *cli, const char *fname)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_unlink_send(frame,
				ev,
				cli,
				fname);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_unlink_recv(req);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 rmdir - POSIX semantics.
****************************************************************************/

struct cli_posix_rmdir_state {
	uint8_t dummy;
};

static void cli_posix_rmdir_done(struct tevent_req *subreq);

struct tevent_req *cli_posix_rmdir_send(TALLOC_CTX *mem_ctx,
					struct tevent_context *ev,
					struct cli_state *cli,
					const char *fname)
{
	struct tevent_req *req = NULL, *subreq = NULL;
	struct cli_posix_rmdir_state *state;

	req = tevent_req_create(mem_ctx, &state, struct cli_posix_rmdir_state);
	if (req == NULL) {
		return NULL;
	}
	subreq = cli_posix_unlink_internal_send(
		mem_ctx, ev, cli, fname, SMB_POSIX_UNLINK_DIRECTORY_TARGET);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_posix_rmdir_done, req);
	return req;
}

static void cli_posix_rmdir_done(struct tevent_req *subreq)
{
	NTSTATUS status = cli_posix_unlink_internal_recv(subreq);
	tevent_req_simple_finish_ntstatus(subreq, status);
}

NTSTATUS cli_posix_rmdir_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_posix_rmdir(struct cli_state *cli, const char *fname)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev = NULL;
	struct tevent_req *req = NULL;
	NTSTATUS status = NT_STATUS_OK;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}

	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	req = cli_posix_rmdir_send(frame,
				ev,
				cli,
				fname);
	if (req == NULL) {
		status = NT_STATUS_NO_MEMORY;
		goto fail;
	}

	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}

	status = cli_posix_rmdir_recv(req, frame);

 fail:
	TALLOC_FREE(frame);
	return status;
}

/****************************************************************************
 filechangenotify
****************************************************************************/

struct cli_notify_state {
	struct tevent_req *subreq;
	uint8_t setup[8];
	uint32_t num_changes;
	struct notify_change *changes;
};

static void cli_notify_done(struct tevent_req *subreq);
static void cli_notify_done_smb2(struct tevent_req *subreq);
static bool cli_notify_cancel(struct tevent_req *req);

struct tevent_req *cli_notify_send(TALLOC_CTX *mem_ctx,
				   struct tevent_context *ev,
				   struct cli_state *cli, uint16_t fnum,
				   uint32_t buffer_size,
				   uint32_t completion_filter, bool recursive)
{
	struct tevent_req *req;
	struct cli_notify_state *state;
	unsigned old_timeout;

	req = tevent_req_create(mem_ctx, &state, struct cli_notify_state);
	if (req == NULL) {
		return NULL;
	}

	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		/*
		 * Notifies should not time out
		 */
		old_timeout = cli_set_timeout(cli, 0);

		state->subreq = cli_smb2_notify_send(
			state,
			ev,
			cli,
			fnum,
			buffer_size,
			completion_filter,
			recursive);

		cli_set_timeout(cli, old_timeout);

		if (tevent_req_nomem(state->subreq, req)) {
			return tevent_req_post(req, ev);
		}
		tevent_req_set_callback(
			state->subreq, cli_notify_done_smb2, req);
		goto done;
	}

	SIVAL(state->setup, 0, completion_filter);
	SSVAL(state->setup, 4, fnum);
	SSVAL(state->setup, 6, recursive);

	/*
	 * Notifies should not time out
	 */
	old_timeout = cli_set_timeout(cli, 0);

	state->subreq = cli_trans_send(
		state,			/* mem ctx. */
		ev,			/* event ctx. */
		cli,			/* cli_state. */
		0,			/* additional_flags2 */
		SMBnttrans,		/* cmd. */
		NULL,			/* pipe name. */
		-1,			/* fid. */
		NT_TRANSACT_NOTIFY_CHANGE, /* function. */
		0,			/* flags. */
		(uint16_t *)state->setup, /* setup. */
		4,			/* num setup uint16_t words. */
		0,			/* max returned setup. */
		NULL,			/* param. */
		0,			/* num param. */
		buffer_size,		/* max returned param. */
		NULL,			/* data. */
		0,			/* num data. */
		0);			/* max returned data. */

	cli_set_timeout(cli, old_timeout);

	if (tevent_req_nomem(state->subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(state->subreq, cli_notify_done, req);
done:
	tevent_req_set_cancel_fn(req, cli_notify_cancel);
	return req;
}

static bool cli_notify_cancel(struct tevent_req *req)
{
	struct cli_notify_state *state = tevent_req_data(
		req, struct cli_notify_state);
	bool ok;

	ok = tevent_req_cancel(state->subreq);
	return ok;
}

static void cli_notify_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_notify_state *state = tevent_req_data(
		req, struct cli_notify_state);
	NTSTATUS status;
	uint8_t *params;
	uint32_t i, ofs, num_params;
	uint16_t flags2;

	status = cli_trans_recv(subreq, talloc_tos(), &flags2, NULL, 0, NULL,
				&params, 0, &num_params, NULL, 0, NULL);
	TALLOC_FREE(subreq);
	state->subreq = NULL;
	if (tevent_req_nterror(req, status)) {
		DEBUG(10, ("cli_trans_recv returned %s\n", nt_errstr(status)));
		return;
	}

	state->num_changes = 0;
	ofs = 0;

	while (num_params - ofs > 12) {
		uint32_t next = IVAL(params, ofs);
		state->num_changes += 1;

		if ((next == 0) || (ofs+next >= num_params)) {
			break;
		}
		ofs += next;
	}

	state->changes = talloc_array(state, struct notify_change,
				      state->num_changes);
	if (tevent_req_nomem(state->changes, req)) {
		TALLOC_FREE(params);
		return;
	}

	ofs = 0;

	for (i=0; i<state->num_changes; i++) {
		uint32_t next = IVAL(params, ofs);
		uint32_t len = IVAL(params, ofs+8);
		ssize_t ret;
		char *name;

		if (smb_buffer_oob(num_params, ofs + 12, len)) {
			TALLOC_FREE(params);
			tevent_req_nterror(
				req, NT_STATUS_INVALID_NETWORK_RESPONSE);
			return;
		}

		state->changes[i].action = IVAL(params, ofs+4);
		ret = pull_string_talloc(state->changes,
					 (char *)params,
					 flags2,
					 &name,
					 params+ofs+12,
					 len,
					 STR_TERMINATE|STR_UNICODE);
		if (ret == -1) {
			TALLOC_FREE(params);
			tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
			return;
		}
		state->changes[i].name = name;
		ofs += next;
	}

	TALLOC_FREE(params);
	tevent_req_done(req);
}

static void cli_notify_done_smb2(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_notify_state *state = tevent_req_data(
		req, struct cli_notify_state);
	NTSTATUS status;

	status = cli_smb2_notify_recv(
		subreq,
		state,
		&state->changes,
		&state->num_changes);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_notify_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
			 uint32_t *pnum_changes,
			 struct notify_change **pchanges)
{
	struct cli_notify_state *state = tevent_req_data(
		req, struct cli_notify_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}

	*pnum_changes = state->num_changes;
	*pchanges = talloc_move(mem_ctx, &state->changes);
	return NT_STATUS_OK;
}

NTSTATUS cli_notify(struct cli_state *cli, uint16_t fnum, uint32_t buffer_size,
		    uint32_t completion_filter, bool recursive,
		    TALLOC_CTX *mem_ctx, uint32_t *pnum_changes,
		    struct notify_change **pchanges)
{
	TALLOC_CTX *frame;
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_notify_send(ev, ev, cli, fnum, buffer_size,
			      completion_filter, recursive);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_notify_recv(req, mem_ctx, pnum_changes, pchanges);
 fail:
	TALLOC_FREE(frame);
	return status;
}

struct cli_qpathinfo_state {
	uint8_t *param;
	uint8_t *data;
	uint16_t setup[1];
	uint32_t min_rdata;
	uint8_t *rdata;
	uint32_t num_rdata;
};

static void cli_qpathinfo_done(struct tevent_req *subreq);

struct tevent_req *cli_qpathinfo_send(TALLOC_CTX *mem_ctx,
				      struct tevent_context *ev,
				      struct cli_state *cli, const char *fname,
				      uint16_t level, uint32_t min_rdata,
				      uint32_t max_rdata)
{
	struct tevent_req *req, *subreq;
	struct cli_qpathinfo_state *state;
	uint16_t additional_flags2 = 0;

	req = tevent_req_create(mem_ctx, &state, struct cli_qpathinfo_state);
	if (req == NULL) {
		return NULL;
	}
	state->min_rdata = min_rdata;
	SSVAL(state->setup, 0, TRANSACT2_QPATHINFO);

	state->param = talloc_zero_array(state, uint8_t, 6);
	if (tevent_req_nomem(state->param, req)) {
		return tevent_req_post(req, ev);
	}
	SSVAL(state->param, 0, level);
	state->param = trans2_bytes_push_str(
		state->param, smbXcli_conn_use_unicode(cli->conn), fname, strlen(fname)+1, NULL);
	if (tevent_req_nomem(state->param, req)) {
		return tevent_req_post(req, ev);
	}

	if (clistr_is_previous_version_path(fname, NULL, NULL, NULL) &&
			!INFO_LEVEL_IS_UNIX(level)) {
		additional_flags2 = FLAGS2_REPARSE_PATH;
	}

	subreq = cli_trans_send(
		state,			/* mem ctx. */
		ev,			/* event ctx. */
		cli,			/* cli_state. */
		additional_flags2,	/* additional_flags2 */
		SMBtrans2,		/* cmd. */
		NULL,			/* pipe name. */
		-1,			/* fid. */
		0,			/* function. */
		0,			/* flags. */
		state->setup,		/* setup. */
		1,			/* num setup uint16_t words. */
		0,			/* max returned setup. */
		state->param,		/* param. */
		talloc_get_size(state->param),	/* num param. */
		2,			/* max returned param. */
		NULL,			/* data. */
		0,			/* num data. */
		max_rdata);		/* max returned data. */

	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_qpathinfo_done, req);
	return req;
}

static void cli_qpathinfo_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_qpathinfo_state *state = tevent_req_data(
		req, struct cli_qpathinfo_state);
	NTSTATUS status;

	status = cli_trans_recv(subreq, state, NULL, NULL, 0, NULL,
				NULL, 0, NULL,
				&state->rdata, state->min_rdata,
				&state->num_rdata);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_qpathinfo_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
			    uint8_t **rdata, uint32_t *num_rdata)
{
	struct cli_qpathinfo_state *state = tevent_req_data(
		req, struct cli_qpathinfo_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}
	if (rdata != NULL) {
		*rdata = talloc_move(mem_ctx, &state->rdata);
	} else {
		TALLOC_FREE(state->rdata);
	}
	if (num_rdata != NULL) {
		*num_rdata = state->num_rdata;
	}
	return NT_STATUS_OK;
}

NTSTATUS cli_qpathinfo(TALLOC_CTX *mem_ctx, struct cli_state *cli,
		       const char *fname, uint16_t level, uint32_t min_rdata,
		       uint32_t max_rdata,
		       uint8_t **rdata, uint32_t *num_rdata)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_qpathinfo_send(frame, ev, cli, fname, level, min_rdata,
				 max_rdata);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_qpathinfo_recv(req, mem_ctx, rdata, num_rdata);
 fail:
	TALLOC_FREE(frame);
	return status;
}

struct cli_qfileinfo_state {
	uint16_t setup[1];
	uint8_t param[4];
	uint8_t *data;
	uint16_t recv_flags2;
	uint32_t min_rdata;
	uint8_t *rdata;
	uint32_t num_rdata;
};

static void cli_qfileinfo_done(struct tevent_req *subreq);

struct tevent_req *cli_qfileinfo_send(TALLOC_CTX *mem_ctx,
				      struct tevent_context *ev,
				      struct cli_state *cli, uint16_t fnum,
				      uint16_t level, uint32_t min_rdata,
				      uint32_t max_rdata)
{
	struct tevent_req *req, *subreq;
	struct cli_qfileinfo_state *state;

	req = tevent_req_create(mem_ctx, &state, struct cli_qfileinfo_state);
	if (req == NULL) {
		return NULL;
	}
	state->min_rdata = min_rdata;
	SSVAL(state->param, 0, fnum);
	SSVAL(state->param, 2, level);
	SSVAL(state->setup, 0, TRANSACT2_QFILEINFO);

	subreq = cli_trans_send(
		state,			/* mem ctx. */
		ev,			/* event ctx. */
		cli,			/* cli_state. */
		0,			/* additional_flags2 */
		SMBtrans2,		/* cmd. */
		NULL,			/* pipe name. */
		-1,			/* fid. */
		0,			/* function. */
		0,			/* flags. */
		state->setup,		/* setup. */
		1,			/* num setup uint16_t words. */
		0,			/* max returned setup. */
		state->param,		/* param. */
		sizeof(state->param),	/* num param. */
		2,			/* max returned param. */
		NULL,			/* data. */
		0,			/* num data. */
		max_rdata);		/* max returned data. */

	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_qfileinfo_done, req);
	return req;
}

static void cli_qfileinfo_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_qfileinfo_state *state = tevent_req_data(
		req, struct cli_qfileinfo_state);
	NTSTATUS status;

	status = cli_trans_recv(subreq, state,
				&state->recv_flags2,
				NULL, 0, NULL,
				NULL, 0, NULL,
				&state->rdata, state->min_rdata,
				&state->num_rdata);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_qfileinfo_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
			    uint16_t *recv_flags2,
			    uint8_t **rdata, uint32_t *num_rdata)
{
	struct cli_qfileinfo_state *state = tevent_req_data(
		req, struct cli_qfileinfo_state);
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}

	if (recv_flags2 != NULL) {
		*recv_flags2 = state->recv_flags2;
	}
	if (rdata != NULL) {
		*rdata = talloc_move(mem_ctx, &state->rdata);
	}
	if (num_rdata != NULL) {
		*num_rdata = state->num_rdata;
	}

	tevent_req_received(req);
	return NT_STATUS_OK;
}

NTSTATUS cli_qfileinfo(TALLOC_CTX *mem_ctx, struct cli_state *cli,
		       uint16_t fnum, uint16_t level, uint32_t min_rdata,
		       uint32_t max_rdata, uint16_t *recv_flags2,
		       uint8_t **rdata, uint32_t *num_rdata)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_qfileinfo_send(frame, ev, cli, fnum, level, min_rdata,
				 max_rdata);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_qfileinfo_recv(req, mem_ctx, recv_flags2, rdata, num_rdata);
 fail:
	TALLOC_FREE(frame);
	return status;
}

struct cli_flush_state {
	uint16_t vwv[1];
};

static void cli_flush_done(struct tevent_req *subreq);

struct tevent_req *cli_flush_send(TALLOC_CTX *mem_ctx,
				  struct tevent_context *ev,
				  struct cli_state *cli,
				  uint16_t fnum)
{
	struct tevent_req *req, *subreq;
	struct cli_flush_state *state;

	req = tevent_req_create(mem_ctx, &state, struct cli_flush_state);
	if (req == NULL) {
		return NULL;
	}
	SSVAL(state->vwv + 0, 0, fnum);

	subreq = cli_smb_send(state, ev, cli, SMBflush, 0, 0, 1, state->vwv,
			      0, NULL);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_flush_done, req);
	return req;
}

static void cli_flush_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	NTSTATUS status;

	status = cli_smb_recv(subreq, NULL, NULL, 0, NULL, NULL, NULL, NULL);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_flush_recv(struct tevent_req *req)
{
	return tevent_req_simple_recv_ntstatus(req);
}

NTSTATUS cli_flush(TALLOC_CTX *mem_ctx, struct cli_state *cli, uint16_t fnum)
{
	TALLOC_CTX *frame = talloc_stackframe();
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_flush_send(frame, ev, cli, fnum);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_flush_recv(req);
 fail:
	TALLOC_FREE(frame);
	return status;
}

struct cli_shadow_copy_data_state {
	uint16_t setup[4];
	uint8_t *data;
	uint32_t num_data;
	bool get_names;
};

static void cli_shadow_copy_data_done(struct tevent_req *subreq);

struct tevent_req *cli_shadow_copy_data_send(TALLOC_CTX *mem_ctx,
					     struct tevent_context *ev,
					     struct cli_state *cli,
					     uint16_t fnum,
					     bool get_names)
{
	struct tevent_req *req, *subreq;
	struct cli_shadow_copy_data_state *state;
	uint32_t ret_size;

	req = tevent_req_create(mem_ctx, &state,
				struct cli_shadow_copy_data_state);
	if (req == NULL) {
		return NULL;
	}
	state->get_names = get_names;
	ret_size = get_names ? CLI_BUFFER_SIZE : 16;

	SIVAL(state->setup + 0, 0, FSCTL_GET_SHADOW_COPY_DATA);
	SSVAL(state->setup + 2, 0, fnum);
	SCVAL(state->setup + 3, 0, 1); /* isFsctl */
	SCVAL(state->setup + 3, 1, 0); /* compfilter, isFlags (WSSP) */

	subreq = cli_trans_send(
		state, ev, cli, 0, SMBnttrans, NULL, 0, NT_TRANSACT_IOCTL, 0,
		state->setup, ARRAY_SIZE(state->setup),
		ARRAY_SIZE(state->setup),
		NULL, 0, 0,
		NULL, 0, ret_size);
	if (tevent_req_nomem(subreq, req)) {
		return tevent_req_post(req, ev);
	}
	tevent_req_set_callback(subreq, cli_shadow_copy_data_done, req);
	return req;
}

static void cli_shadow_copy_data_done(struct tevent_req *subreq)
{
	struct tevent_req *req = tevent_req_callback_data(
		subreq, struct tevent_req);
	struct cli_shadow_copy_data_state *state = tevent_req_data(
		req, struct cli_shadow_copy_data_state);
	NTSTATUS status;

	status = cli_trans_recv(subreq, state, NULL,
				NULL, 0, NULL, /* setup */
				NULL, 0, NULL, /* param */
				&state->data, 12, &state->num_data);
	TALLOC_FREE(subreq);
	if (tevent_req_nterror(req, status)) {
		return;
	}
	tevent_req_done(req);
}

NTSTATUS cli_shadow_copy_data_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
				   char ***pnames, int *pnum_names)
{
	struct cli_shadow_copy_data_state *state = tevent_req_data(
		req, struct cli_shadow_copy_data_state);
	char **names = NULL;
	uint32_t i, num_names;
	uint32_t dlength;
	uint8_t *endp = NULL;
	NTSTATUS status;

	if (tevent_req_is_nterror(req, &status)) {
		return status;
	}

	if (state->num_data < 16) {
		return NT_STATUS_INVALID_NETWORK_RESPONSE;
	}

	num_names = IVAL(state->data, 4);
	dlength = IVAL(state->data, 8);

	if (num_names > 0x7FFFFFFF) {
		return NT_STATUS_INVALID_NETWORK_RESPONSE;
	}

	if (!state->get_names) {
		*pnum_names = (int)num_names;
		return NT_STATUS_OK;
	}

	if (dlength + 12 < 12) {
		return NT_STATUS_INVALID_NETWORK_RESPONSE;
	}
	if (dlength + 12 > state->num_data) {
		return NT_STATUS_INVALID_NETWORK_RESPONSE;
	}
	if (state->num_data + (2 * sizeof(SHADOW_COPY_LABEL)) <
			state->num_data) {
		return NT_STATUS_INVALID_NETWORK_RESPONSE;
	}

	names = talloc_array(mem_ctx, char *, num_names);
	if (names == NULL) {
		return NT_STATUS_NO_MEMORY;
	}

	endp = state->data + state->num_data;

	for (i=0; i<num_names; i++) {
		bool ret;
		uint8_t *src;
		size_t converted_size;

		src = state->data + 12 + i * 2 * sizeof(SHADOW_COPY_LABEL);

		if (src + (2 * sizeof(SHADOW_COPY_LABEL)) > endp) {
			return NT_STATUS_INVALID_NETWORK_RESPONSE;
		}

		ret = convert_string_talloc(
			names, CH_UTF16LE, CH_UNIX,
			src, 2 * sizeof(SHADOW_COPY_LABEL),
			&names[i], &converted_size);
		if (!ret) {
			TALLOC_FREE(names);
			return NT_STATUS_INVALID_NETWORK_RESPONSE;
		}
	}
	*pnum_names = (int)num_names;
	*pnames = names;
	return NT_STATUS_OK;
}

NTSTATUS cli_shadow_copy_data(TALLOC_CTX *mem_ctx, struct cli_state *cli,
			      uint16_t fnum, bool get_names,
			      char ***pnames, int *pnum_names)
{
	TALLOC_CTX *frame = NULL;
	struct tevent_context *ev;
	struct tevent_req *req;
	NTSTATUS status = NT_STATUS_NO_MEMORY;

        if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
		return cli_smb2_shadow_copy_data(mem_ctx,
					cli,
					fnum,
					get_names,
					pnames,
					pnum_names);
	}

	frame = talloc_stackframe();

	if (smbXcli_conn_has_async_calls(cli->conn)) {
		/*
		 * Can't use sync call while an async call is in flight
		 */
		status = NT_STATUS_INVALID_PARAMETER;
		goto fail;
	}
	ev = samba_tevent_context_init(frame);
	if (ev == NULL) {
		goto fail;
	}
	req = cli_shadow_copy_data_send(frame, ev, cli, fnum, get_names);
	if (req == NULL) {
		goto fail;
	}
	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
		goto fail;
	}
	status = cli_shadow_copy_data_recv(req, mem_ctx, pnames, pnum_names);
 fail:
	TALLOC_FREE(frame);
	return status;
}