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/* 
   Unix SMB/CIFS implementation.
   ACL get/set operations

   Copyright (C) Andrew Tridgell 2003-2004
   
   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 "libcli/raw/libcliraw.h"
#include "librpc/gen_ndr/ndr_security.h"

/****************************************************************************
fetch file ACL (async send)
****************************************************************************/
struct smbcli_request *smb_raw_query_secdesc_send(struct smbcli_tree *tree, 
						  union smb_fileinfo *io)
{
	struct smb_nttrans nt;
	uint8_t params[8];

	nt.in.max_setup = 0;
	nt.in.max_param = 4;
	nt.in.max_data = 0xFFFF;
	nt.in.setup_count = 0;
	nt.in.function = NT_TRANSACT_QUERY_SECURITY_DESC;
	nt.in.setup = NULL;

	SSVAL(params, 0, io->query_secdesc.in.file.fnum);
	SSVAL(params, 2, 0); /* padding */
	SIVAL(params, 4, io->query_secdesc.in.secinfo_flags);

	nt.in.params.data = params;
	nt.in.params.length = 8;
	
	nt.in.data = data_blob(NULL, 0);

	return smb_raw_nttrans_send(tree, &nt);
}


/****************************************************************************
fetch file ACL (async recv)
****************************************************************************/
NTSTATUS smb_raw_query_secdesc_recv(struct smbcli_request *req, 
				    TALLOC_CTX *mem_ctx, 
				    union smb_fileinfo *io)
{
	NTSTATUS status;
	struct smb_nttrans nt;
	struct ndr_pull *ndr;

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

	/* check that the basics are valid */
	if (nt.out.params.length != 4 ||
	    IVAL(nt.out.params.data, 0) > nt.out.data.length) {
		return NT_STATUS_INVALID_PARAMETER;
	}

	nt.out.data.length = IVAL(nt.out.params.data, 0);

	ndr = ndr_pull_init_blob(&nt.out.data, mem_ctx);
	if (!ndr) {
		return NT_STATUS_INVALID_PARAMETER;
	}

	io->query_secdesc.out.sd = talloc(mem_ctx, struct security_descriptor);
	if (!io->query_secdesc.out.sd) {
		return NT_STATUS_NO_MEMORY;
	}
	status = ndr_pull_security_descriptor(ndr, NDR_SCALARS|NDR_BUFFERS, 
					      io->query_secdesc.out.sd);

	return status;
}


/****************************************************************************
fetch file ACL (sync interface)
****************************************************************************/
NTSTATUS smb_raw_query_secdesc(struct smbcli_tree *tree, 
			       TALLOC_CTX *mem_ctx, 
			       union smb_fileinfo *io)
{
	struct smbcli_request *req = smb_raw_query_secdesc_send(tree, io);
	return smb_raw_query_secdesc_recv(req, mem_ctx, io);
}



/****************************************************************************
set file ACL (async send)
****************************************************************************/
struct smbcli_request *smb_raw_set_secdesc_send(struct smbcli_tree *tree, 
						union smb_setfileinfo *io)
{
	struct smb_nttrans nt;
	uint8_t params[8];
	struct ndr_push *ndr;
	struct smbcli_request *req;
	NTSTATUS status;

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

	SSVAL(params, 0, io->set_secdesc.in.file.fnum);
	SSVAL(params, 2, 0); /* padding */
	SIVAL(params, 4, io->set_secdesc.in.secinfo_flags);

	nt.in.params.data = params;
	nt.in.params.length = 8;

	ndr = ndr_push_init_ctx(NULL);
	if (!ndr) return NULL;

	status = ndr_push_security_descriptor(ndr, NDR_SCALARS|NDR_BUFFERS, io->set_secdesc.in.sd);
	if (!NT_STATUS_IS_OK(status)) {
		talloc_free(ndr);
		return NULL;
	}

	nt.in.data = ndr_push_blob(ndr);

	req = smb_raw_nttrans_send(tree, &nt);

	talloc_free(ndr);
	return req;
}

/****************************************************************************
set file ACL (sync interface)
****************************************************************************/
NTSTATUS smb_raw_set_secdesc(struct smbcli_tree *tree, 
			     union smb_setfileinfo *io)
{
	struct smbcli_request *req = smb_raw_set_secdesc_send(tree, io);
	return smbcli_request_simple_recv(req);
}