samba-mirror/source4/torture/raw/read.c

/* 
   Unix SMB/CIFS implementation.
   test suite for various read operations
   Copyright (C) Andrew Tridgell 2003
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "includes.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/raw/raw_proto.h"
#include "system/time.h"
#include "system/filesys.h"
#include "libcli/libcli.h"
#include "torture/util.h"
#include "torture/raw/proto.h"

#define CHECK_STATUS(status, correct) do { \
		torture_assert_ntstatus_equal_goto(tctx, status, correct, ret, \
						   done, "incorrect status"); \
	} while (0)

#define CHECK_VALUE(v, correct) do { \
		torture_assert_int_equal_goto(tctx, (v), (correct), ret, done, \
					      "Incorrect value"); \
	} while (0)

#define CHECK_BUFFER(buf, seed, len) do { \
	if (!check_buffer(tctx, buf, seed, len, __LINE__)) {	\
		ret = false; \
		torture_fail_goto(tctx, done, "buffer check failed\n"); \
	}} while (0)

#define CHECK_READX_ALIGN(io) do {			      \
	if ((io.readx.out.flags2 & FLAGS2_UNICODE_STRINGS) && \
	    (io.readx.out.data_offset % 2 != 0)) { \
		ret = false; \
		torture_fail_goto(tctx, done, "data not 16 bit aligned\n"); \
	}} while (0)

#define BASEDIR "\\testread"


/*
  setup a random buffer based on a seed
*/
static void setup_buffer(uint8_t *buf, unsigned int seed, int len)
{
	int i;
	srandom(seed);
	for (i=0;i<len;i++) buf[i] = random();
}

/*
  check a random buffer based on a seed
*/
static bool check_buffer(struct torture_context *tctx, uint8_t *buf,
			 unsigned int seed, int len, int line)
{
	int i;
	srandom(seed);
	for (i=0;i<len;i++) {
		uint8_t v = random();
		if (buf[i] != v) {
			torture_warning(tctx, "Buffer incorrect at line %d! "
					"ofs=%d v1=0x%x v2=0x%x\n", line, i,
					buf[i], v);
			return false;
		}
	}
	return true;
}

/*
  test read ops
*/
static bool test_read(struct torture_context *tctx, struct smbcli_state *cli)
{
	union smb_read io;
	NTSTATUS status;
	bool ret = true;
	int fnum;
	uint8_t *buf;
	const int maxsize = 90000;
	const char *fname = BASEDIR "\\test.txt";
	const char *test_data = "TEST DATA";
	unsigned int seed = time(NULL);

	buf = talloc_zero_array(tctx, uint8_t, maxsize);

	if (!torture_setting_bool(tctx, "read_support", true)) {
		printf("server refuses to support READ\n");
		return true;
	}

	torture_assert(tctx, torture_setup_dir(cli, BASEDIR), "Failed to setup up test directory: " BASEDIR);

	printf("Testing RAW_READ_READ\n");
	io.generic.level = RAW_READ_READ;

	fnum = smbcli_open(cli->tree, fname, O_RDWR|O_CREAT, DENY_NONE);
	if (fnum == -1) {
		printf("Failed to create %s - %s\n", fname, smbcli_errstr(cli->tree));
		ret = false;
		goto done;
	}

	printf("Trying empty file read\n");
	io.read.in.file.fnum = fnum;
	io.read.in.count = 1;
	io.read.in.offset = 0;
	io.read.in.remaining = 0;
	io.read.out.data = buf;
	status = smb_raw_read(cli->tree, &io);

	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.read.out.nread, 0);

	printf("Trying zero file read\n");
	io.read.in.count = 0;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.read.out.nread, 0);

	printf("Trying bad fnum\n");
	io.read.in.file.fnum = fnum+1;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_INVALID_HANDLE);
	io.read.in.file.fnum = fnum;

	smbcli_write(cli->tree, fnum, 0, test_data, 0, strlen(test_data));

	printf("Trying small read\n");
	io.read.in.file.fnum = fnum;
	io.read.in.offset = 0;
	io.read.in.remaining = 0;
	io.read.in.count = strlen(test_data);
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.read.out.nread, strlen(test_data));
	if (memcmp(buf, test_data, strlen(test_data)) != 0) {
		ret = false;
		printf("incorrect data at %d!? (%s:%s)\n", __LINE__, test_data, buf);
		goto done;
	}

	printf("Trying short read\n");
	io.read.in.offset = 1;
	io.read.in.count = strlen(test_data);
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.read.out.nread, strlen(test_data)-1);
	if (memcmp(buf, test_data+1, strlen(test_data)-1) != 0) {
		ret = false;
		printf("incorrect data at %d!? (%s:%s)\n", __LINE__, test_data+1, buf);
		goto done;
	}

	if (cli->transport->negotiate.capabilities & CAP_LARGE_FILES) {
		printf("Trying max offset\n");
		io.read.in.offset = ~0;
		io.read.in.count = strlen(test_data);
		status = smb_raw_read(cli->tree, &io);
		CHECK_STATUS(status, NT_STATUS_OK);
		CHECK_VALUE(io.read.out.nread, 0);
	}

	setup_buffer(buf, seed, maxsize);
	smbcli_write(cli->tree, fnum, 0, buf, 0, maxsize);
	memset(buf, 0, maxsize);

	printf("Trying large read\n");
	io.read.in.offset = 0;
	io.read.in.count = ~0;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_BUFFER(buf, seed, io.read.out.nread);


	printf("Trying locked region\n");
	cli->session->pid++;
	if (NT_STATUS_IS_ERR(smbcli_lock(cli->tree, fnum, 103, 1, 0, WRITE_LOCK))) {
		printf("Failed to lock file at %d\n", __LINE__);
		ret = false;
		goto done;
	}
	cli->session->pid--;
	memset(buf, 0, maxsize);
	io.read.in.offset = 0;
	io.read.in.count = ~0;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_FILE_LOCK_CONFLICT);
	

done:
	smbcli_close(cli->tree, fnum);
	smb_raw_exit(cli->session);
	smbcli_deltree(cli->tree, BASEDIR);
	return ret;
}


/*
  test lockread ops
*/
static bool test_lockread(struct torture_context *tctx, 
						  struct smbcli_state *cli)
{
	union smb_read io;
	NTSTATUS status;
	bool ret = true;
	int fnum;
	uint8_t *buf;
	const int maxsize = 90000;
	const char *fname = BASEDIR "\\test.txt";
	const char *test_data = "TEST DATA";
	unsigned int seed = time(NULL);

	if (!cli->transport->negotiate.lockread_supported) {
		printf("Server does not support lockread - skipping\n");
		return true;
	}

	buf = talloc_zero_array(tctx, uint8_t, maxsize);

	torture_assert(tctx, torture_setup_dir(cli, BASEDIR), "Failed to setup up test directory: " BASEDIR);

	printf("Testing RAW_READ_LOCKREAD\n");
	io.generic.level = RAW_READ_LOCKREAD;
	
	fnum = smbcli_open(cli->tree, fname, O_RDWR|O_CREAT, DENY_NONE);
	if (fnum == -1) {
		printf("Failed to create %s - %s\n", fname, smbcli_errstr(cli->tree));
		ret = false;
		goto done;
	}

	printf("Trying empty file read\n");
	io.lockread.in.file.fnum = fnum;
	io.lockread.in.count = 1;
	io.lockread.in.offset = 1;
	io.lockread.in.remaining = 0;
	io.lockread.out.data = buf;
	status = smb_raw_read(cli->tree, &io);

	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.lockread.out.nread, 0);

	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_LOCK_NOT_GRANTED);

	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_FILE_LOCK_CONFLICT);

	printf("Trying zero file read\n");
	io.lockread.in.count = 0;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);

	smbcli_unlock(cli->tree, fnum, 1, 1);

	printf("Trying bad fnum\n");
	io.lockread.in.file.fnum = fnum+1;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_INVALID_HANDLE);
	io.lockread.in.file.fnum = fnum;

	smbcli_write(cli->tree, fnum, 0, test_data, 0, strlen(test_data));

	printf("Trying small read\n");
	io.lockread.in.file.fnum = fnum;
	io.lockread.in.offset = 0;
	io.lockread.in.remaining = 0;
	io.lockread.in.count = strlen(test_data);
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_LOCK_NOT_GRANTED);

	smbcli_unlock(cli->tree, fnum, 1, 0);

	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.lockread.out.nread, strlen(test_data));
	if (memcmp(buf, test_data, strlen(test_data)) != 0) {
		ret = false;
		printf("incorrect data at %d!? (%s:%s)\n", __LINE__, test_data, buf);
		goto done;
	}

	printf("Trying short read\n");
	io.lockread.in.offset = 1;
	io.lockread.in.count = strlen(test_data);
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_LOCK_NOT_GRANTED);
	smbcli_unlock(cli->tree, fnum, 0, strlen(test_data));
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);

	CHECK_VALUE(io.lockread.out.nread, strlen(test_data)-1);
	if (memcmp(buf, test_data+1, strlen(test_data)-1) != 0) {
		ret = false;
		printf("incorrect data at %d!? (%s:%s)\n", __LINE__, test_data+1, buf);
		goto done;
	}

	if (cli->transport->negotiate.capabilities & CAP_LARGE_FILES) {
		printf("Trying max offset\n");
		io.lockread.in.offset = ~0;
		io.lockread.in.count = strlen(test_data);
		status = smb_raw_read(cli->tree, &io);
		CHECK_STATUS(status, NT_STATUS_OK);
		CHECK_VALUE(io.lockread.out.nread, 0);
	}

	setup_buffer(buf, seed, maxsize);
	smbcli_write(cli->tree, fnum, 0, buf, 0, maxsize);
	memset(buf, 0, maxsize);

	printf("Trying large read\n");
	io.lockread.in.offset = 0;
	io.lockread.in.count = ~0;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_LOCK_NOT_GRANTED);
	smbcli_unlock(cli->tree, fnum, 1, strlen(test_data));
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_BUFFER(buf, seed, io.lockread.out.nread);
	smbcli_unlock(cli->tree, fnum, 0, 0xFFFF);


	printf("Trying locked region\n");
	cli->session->pid++;
	if (NT_STATUS_IS_ERR(smbcli_lock(cli->tree, fnum, 103, 1, 0, WRITE_LOCK))) {
		printf("Failed to lock file at %d\n", __LINE__);
		ret = false;
		goto done;
	}
	cli->session->pid--;
	memset(buf, 0, maxsize);
	io.lockread.in.offset = 0;
	io.lockread.in.count = ~0;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_FILE_LOCK_CONFLICT);
	

done:
	smbcli_close(cli->tree, fnum);
	smbcli_deltree(cli->tree, BASEDIR);
	return ret;
}


/*
  test readx ops
*/
static bool test_readx(struct torture_context *tctx, struct smbcli_state *cli)
{
	union smb_read io;
	NTSTATUS status;
	bool ret = true;
	int fnum;
	uint8_t *buf;
	const int maxsize = 90000;
	const char *fname = BASEDIR "\\test.txt";
	const char *test_data = "TEST DATA";
	unsigned int seed = time(NULL);
	struct smbcli_request *smbreq = NULL;
	unsigned int i;

	buf = talloc_zero_array(tctx, uint8_t, maxsize);

	torture_assert(tctx, torture_setup_dir(cli, BASEDIR), "Failed to setup up test directory: " BASEDIR);

	printf("Testing RAW_READ_READX\n");
	
	fnum = smbcli_open(cli->tree, fname, O_RDWR|O_CREAT, DENY_NONE);
	if (fnum == -1) {
		printf("Failed to create %s - %s\n", fname, smbcli_errstr(cli->tree));
		ret = false;
		goto done;
	}

	printf("Trying empty file read\n");
	io.generic.level = RAW_READ_READX;
	io.readx.in.file.fnum = fnum;
	io.readx.in.mincnt = 1;
	io.readx.in.maxcnt = 1;
	io.readx.in.offset = 0;
	io.readx.in.remaining = 0;
	io.readx.in.read_for_execute = false;
	io.readx.out.data = buf;
	status = smb_raw_read(cli->tree, &io);

	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.nread, 0);
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	CHECK_READX_ALIGN(io);

	printf("Trying zero file read\n");
	io.readx.in.mincnt = 0;
	io.readx.in.maxcnt = 0;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.nread, 0);
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	CHECK_READX_ALIGN(io);

	printf("Trying bad fnum\n");
	io.readx.in.file.fnum = fnum+1;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_INVALID_HANDLE);
	io.readx.in.file.fnum = fnum;

	smbcli_write(cli->tree, fnum, 0, test_data, 0, strlen(test_data));

	printf("Checking reserved fields are [0]\n");
	io.readx.in.file.fnum = fnum;
	io.readx.in.offset = 0;
	io.readx.in.remaining = 0;
	io.readx.in.read_for_execute = false;
	io.readx.in.mincnt = strlen(test_data);
	io.readx.in.maxcnt = strlen(test_data);
	smbreq = smb_raw_read_send(cli->tree, &io);
	if (smbreq == NULL) {
		ret = false;
		torture_fail_goto(tctx, done, "smb_raw_read_send failed\n");
	}
	if (!smbcli_request_receive(smbreq) ||
	     smbcli_request_is_error(smbreq)) {
		status = smbcli_request_destroy(smbreq);
		torture_fail_goto(tctx, done, "receive failed\n");
	}

	if (smbreq->in.wct != 12) {
		ret = false;
		printf("Incorrect wct %u (should be 12)\n",
			(unsigned int)smbreq->in.wct);
		status = smbcli_request_destroy(smbreq);
		torture_fail_goto(tctx, done, "bad wct\n");
	}

	/* Ensure VWV8 - WVW11 are zero. */
	for (i = 8; i < 12; i++) {
		uint16_t br = SVAL(smbreq->in.vwv, VWV(i));
		if (br != 0) {
			status = smbcli_request_destroy(smbreq);
			ret = false;
			printf("reserved field %u is %u not zero\n",
				i,
				(unsigned int)br);
			torture_fail_goto(tctx, done, "bad reserved field\n");
		}
	}

	smbcli_request_destroy(smbreq);

	printf("Trying small read\n");
	io.readx.in.file.fnum = fnum;
	io.readx.in.offset = 0;
	io.readx.in.remaining = 0;
	io.readx.in.read_for_execute = false;
	io.readx.in.mincnt = strlen(test_data);
	io.readx.in.maxcnt = strlen(test_data);
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.nread, strlen(test_data));
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	CHECK_READX_ALIGN(io);
	if (memcmp(buf, test_data, strlen(test_data)) != 0) {
		ret = false;
		printf("incorrect data at %d!? (%s:%s)\n", __LINE__, test_data, buf);
		goto done;
	}

	printf("Trying short read\n");
	io.readx.in.offset = 1;
	io.readx.in.mincnt = strlen(test_data);
	io.readx.in.maxcnt = strlen(test_data);
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.nread, strlen(test_data)-1);
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	CHECK_READX_ALIGN(io);
	if (memcmp(buf, test_data+1, strlen(test_data)-1) != 0) {
		ret = false;
		printf("incorrect data at %d!? (%s:%s)\n", __LINE__, test_data+1, buf);
		goto done;
	}

	if (cli->transport->negotiate.capabilities & CAP_LARGE_FILES) {
		printf("Trying max offset\n");
		io.readx.in.offset = 0xffffffff;
		io.readx.in.mincnt = strlen(test_data);
		io.readx.in.maxcnt = strlen(test_data);
		status = smb_raw_read(cli->tree, &io);
		CHECK_STATUS(status, NT_STATUS_OK);
		CHECK_VALUE(io.readx.out.nread, 0);
		CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
		CHECK_VALUE(io.readx.out.compaction_mode, 0);
		CHECK_READX_ALIGN(io);
	}

	printf("Trying mincnt past EOF\n");
	memset(buf, 0, maxsize);
	io.readx.in.offset = 0;
	io.readx.in.mincnt = 100;
	io.readx.in.maxcnt = 110;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	CHECK_VALUE(io.readx.out.nread, strlen(test_data));
	CHECK_READX_ALIGN(io);
	if (memcmp(buf, test_data, strlen(test_data)) != 0) {
		ret = false;
		printf("incorrect data at %d!? (%s:%s)\n", __LINE__, test_data, buf);
		goto done;
	}


	setup_buffer(buf, seed, maxsize);
	smbcli_write(cli->tree, fnum, 0, buf, 0, maxsize);
	memset(buf, 0, maxsize);

	printf("Trying page sized read\n");
	io.readx.in.offset = 0;
	io.readx.in.mincnt = 0x1000;
	io.readx.in.maxcnt = 0x1000;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	CHECK_VALUE(io.readx.out.nread, io.readx.in.maxcnt);
	CHECK_BUFFER(buf, seed, io.readx.out.nread);
	CHECK_READX_ALIGN(io);

	printf("Trying page + 1 sized read (check alignment)\n");
	io.readx.in.offset = 0;
	io.readx.in.mincnt = 0x1001;
	io.readx.in.maxcnt = 0x1001;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	CHECK_VALUE(io.readx.out.nread, io.readx.in.maxcnt);
	CHECK_BUFFER(buf, seed, io.readx.out.nread);
	CHECK_READX_ALIGN(io);

	printf("Trying large read (UINT16_MAX)\n");
	io.readx.in.offset = 0;
	io.readx.in.mincnt = 0xFFFF;
	io.readx.in.maxcnt = 0xFFFF;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	CHECK_VALUE(io.readx.out.nread, io.readx.in.maxcnt);
	CHECK_BUFFER(buf, seed, io.readx.out.nread);
	CHECK_READX_ALIGN(io);

	printf("Trying extra large read\n");
	io.readx.in.offset = 0;
	io.readx.in.mincnt = 100;
	io.readx.in.maxcnt = 80000;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	if (io.readx.out.nread == io.readx.in.maxcnt) {
		printf("SAMBA: large read extension\n");
		CHECK_VALUE(io.readx.out.nread, 80000);
	} else {
		CHECK_VALUE(io.readx.out.nread, 0x10000);
	}
	CHECK_BUFFER(buf, seed, io.readx.out.nread);
	CHECK_READX_ALIGN(io);

	printf("Trying mincnt > maxcnt\n");
	memset(buf, 0, maxsize);
	io.readx.in.offset = 0;
	io.readx.in.mincnt = 30000;
	io.readx.in.maxcnt = 20000;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	CHECK_VALUE(io.readx.out.nread, io.readx.in.maxcnt);
	CHECK_BUFFER(buf, seed, io.readx.out.nread);
	CHECK_READX_ALIGN(io);

	printf("Trying mincnt < maxcnt\n");
	memset(buf, 0, maxsize);
	io.readx.in.offset = 0;
	io.readx.in.mincnt = 20000;
	io.readx.in.maxcnt = 30000;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(io.readx.out.compaction_mode, 0);
	CHECK_VALUE(io.readx.out.nread, io.readx.in.maxcnt);
	CHECK_BUFFER(buf, seed, io.readx.out.nread);
	CHECK_READX_ALIGN(io);

	if (cli->transport->negotiate.capabilities & CAP_LARGE_READX) {
		printf("Trying large readx\n");
		io.readx.in.offset = 0;
		io.readx.in.mincnt = 0;
		io.readx.in.maxcnt = 0x10000 - 1;
		status = smb_raw_read(cli->tree, &io);
		CHECK_STATUS(status, NT_STATUS_OK);
		CHECK_VALUE(io.readx.out.nread, 0xFFFF);
		CHECK_READX_ALIGN(io);

		io.readx.in.maxcnt = 0x10000;
		status = smb_raw_read(cli->tree, &io);
		CHECK_STATUS(status, NT_STATUS_OK);
		CHECK_VALUE(io.readx.out.nread, 0x10000);
		CHECK_READX_ALIGN(io);

		io.readx.in.maxcnt = 0x10001;
		status = smb_raw_read(cli->tree, &io);
		CHECK_STATUS(status, NT_STATUS_OK);
		if (io.readx.out.nread == io.readx.in.maxcnt) {
			printf("SAMBA: large read extension\n");
			CHECK_VALUE(io.readx.out.nread, 0x10001);
		} else {
			CHECK_VALUE(io.readx.out.nread, 0x10000);
		}
	} else {
		printf("Server does not support the CAP_LARGE_READX extension\n");
	}

	printf("Trying locked region\n");
	cli->session->pid++;
	if (NT_STATUS_IS_ERR(smbcli_lock(cli->tree, fnum, 103, 1, 0, WRITE_LOCK))) {
		printf("Failed to lock file at %d\n", __LINE__);
		ret = false;
		goto done;
	}
	cli->session->pid--;
	memset(buf, 0, maxsize);
	io.readx.in.offset = 0;
	io.readx.in.mincnt = 100;
	io.readx.in.maxcnt = 200;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_FILE_LOCK_CONFLICT);	

	if (!(cli->transport->negotiate.capabilities & CAP_LARGE_FILES)) {
		printf("skipping large file tests - CAP_LARGE_FILES not set\n");
		goto done;
	}

	printf("Trying large offset read\n");
	io.readx.in.offset = ((uint64_t)0x2) << 32;
	io.readx.in.mincnt = 10;
	io.readx.in.maxcnt = 10;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.nread, 0);
	CHECK_READX_ALIGN(io);

	if (NT_STATUS_IS_ERR(smbcli_lock64(cli->tree, fnum, io.readx.in.offset, 1, 0, WRITE_LOCK))) {
		printf("Failed to lock file at %d\n", __LINE__);
		ret = false;
		goto done;
	}

	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readx.out.nread, 0);
	CHECK_READX_ALIGN(io);

done:
	smbcli_close(cli->tree, fnum);
	smbcli_deltree(cli->tree, BASEDIR);
	return ret;
}


/*
  test readbraw ops
*/
static bool test_readbraw(struct torture_context *tctx, 
						  struct smbcli_state *cli)
{
	union smb_read io;
	NTSTATUS status;
	bool ret = true;
	int fnum;
	uint8_t *buf;
	const int maxsize = 90000;
	const char *fname = BASEDIR "\\test.txt";
	const char *test_data = "TEST DATA";
	unsigned int seed = time(NULL);

	if (!cli->transport->negotiate.readbraw_supported) {
		printf("Server does not support readbraw - skipping\n");
		return true;
	}

	buf = talloc_zero_array(tctx, uint8_t, maxsize);

	torture_assert(tctx, torture_setup_dir(cli, BASEDIR), "Failed to setup up test directory: " BASEDIR);

	printf("Testing RAW_READ_READBRAW\n");
	
	fnum = smbcli_open(cli->tree, fname, O_RDWR|O_CREAT, DENY_NONE);
	if (fnum == -1) {
		printf("Failed to create %s - %s\n", fname, smbcli_errstr(cli->tree));
		ret = false;
		goto done;
	}

	printf("Trying empty file read\n");
	io.generic.level = RAW_READ_READBRAW;
	io.readbraw.in.file.fnum = fnum;
	io.readbraw.in.mincnt = 1;
	io.readbraw.in.maxcnt = 1;
	io.readbraw.in.offset = 0;
	io.readbraw.in.timeout = 0;
	io.readbraw.out.data = buf;
	status = smb_raw_read(cli->tree, &io);

	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readbraw.out.nread, 0);

	printf("Trying zero file read\n");
	io.readbraw.in.mincnt = 0;
	io.readbraw.in.maxcnt = 0;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readbraw.out.nread, 0);

	printf("Trying bad fnum\n");
	io.readbraw.in.file.fnum = fnum+1;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readbraw.out.nread, 0);
	io.readbraw.in.file.fnum = fnum;

	smbcli_write(cli->tree, fnum, 0, test_data, 0, strlen(test_data));

	printf("Trying small read\n");
	io.readbraw.in.file.fnum = fnum;
	io.readbraw.in.offset = 0;
	io.readbraw.in.mincnt = strlen(test_data);
	io.readbraw.in.maxcnt = strlen(test_data);
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readbraw.out.nread, strlen(test_data));
	if (memcmp(buf, test_data, strlen(test_data)) != 0) {
		ret = false;
		printf("incorrect data at %d!? (%s:%s)\n", __LINE__, test_data, buf);
		goto done;
	}

	printf("Trying short read\n");
	io.readbraw.in.offset = 1;
	io.readbraw.in.mincnt = strlen(test_data);
	io.readbraw.in.maxcnt = strlen(test_data);
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readbraw.out.nread, strlen(test_data)-1);
	if (memcmp(buf, test_data+1, strlen(test_data)-1) != 0) {
		ret = false;
		printf("incorrect data at %d!? (%s:%s)\n", __LINE__, test_data+1, buf);
		goto done;
	}

	if (cli->transport->negotiate.capabilities & CAP_LARGE_FILES) {
		printf("Trying max offset\n");
		io.readbraw.in.offset = ~0;
		io.readbraw.in.mincnt = strlen(test_data);
		io.readbraw.in.maxcnt = strlen(test_data);
		status = smb_raw_read(cli->tree, &io);
		CHECK_STATUS(status, NT_STATUS_OK);
		CHECK_VALUE(io.readbraw.out.nread, 0);
	}

	setup_buffer(buf, seed, maxsize);
	smbcli_write(cli->tree, fnum, 0, buf, 0, maxsize);
	memset(buf, 0, maxsize);

	printf("Trying large read\n");
	io.readbraw.in.offset = 0;
	io.readbraw.in.mincnt = ~0;
	io.readbraw.in.maxcnt = ~0;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readbraw.out.nread, 0xFFFF);
	CHECK_BUFFER(buf, seed, io.readbraw.out.nread);

	printf("Trying mincnt > maxcnt\n");
	memset(buf, 0, maxsize);
	io.readbraw.in.offset = 0;
	io.readbraw.in.mincnt = 30000;
	io.readbraw.in.maxcnt = 20000;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readbraw.out.nread, io.readbraw.in.maxcnt);
	CHECK_BUFFER(buf, seed, io.readbraw.out.nread);

	printf("Trying mincnt < maxcnt\n");
	memset(buf, 0, maxsize);
	io.readbraw.in.offset = 0;
	io.readbraw.in.mincnt = 20000;
	io.readbraw.in.maxcnt = 30000;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readbraw.out.nread, io.readbraw.in.maxcnt);
	CHECK_BUFFER(buf, seed, io.readbraw.out.nread);

	printf("Trying locked region\n");
	cli->session->pid++;
	if (NT_STATUS_IS_ERR(smbcli_lock(cli->tree, fnum, 103, 1, 0, WRITE_LOCK))) {
		printf("Failed to lock file at %d\n", __LINE__);
		ret = false;
		goto done;
	}
	cli->session->pid--;
	memset(buf, 0, maxsize);
	io.readbraw.in.offset = 0;
	io.readbraw.in.mincnt = 100;
	io.readbraw.in.maxcnt = 200;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readbraw.out.nread, 0);

	printf("Trying locked region with timeout\n");
	memset(buf, 0, maxsize);
	io.readbraw.in.offset = 0;
	io.readbraw.in.mincnt = 100;
	io.readbraw.in.maxcnt = 200;
	io.readbraw.in.timeout = 10000;
	status = smb_raw_read(cli->tree, &io);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(io.readbraw.out.nread, 0);

	if (cli->transport->negotiate.capabilities & CAP_LARGE_FILES) {
		printf("Trying large offset read\n");
		io.readbraw.in.offset = ((uint64_t)0x2) << 32;
		io.readbraw.in.mincnt = 10;
		io.readbraw.in.maxcnt = 10;
		io.readbraw.in.timeout = 0;
		status = smb_raw_read(cli->tree, &io);
		CHECK_STATUS(status, NT_STATUS_OK);
		CHECK_VALUE(io.readbraw.out.nread, 0);
	}

done:
	smbcli_close(cli->tree, fnum);
	smbcli_deltree(cli->tree, BASEDIR);
	return ret;
}

/*
  test read for execute
*/
static bool test_read_for_execute(struct torture_context *tctx, 
								  struct smbcli_state *cli)
{
	union smb_open op;
	union smb_write wr;
	union smb_read rd;
	NTSTATUS status;
	bool ret = true;
	int fnum=0;
	uint8_t *buf;
	const int maxsize = 900;
	const char *fname = BASEDIR "\\test.txt";
	const uint8_t data[] = "TEST DATA";

	buf = talloc_zero_array(tctx, uint8_t, maxsize);

	torture_assert(tctx, torture_setup_dir(cli, BASEDIR), "Failed to setup up test directory: " BASEDIR);

	printf("Testing RAW_READ_READX with read_for_execute\n");

	op.generic.level = RAW_OPEN_NTCREATEX;
	op.ntcreatex.in.root_fid.fnum = 0;
	op.ntcreatex.in.flags = 0;
	op.ntcreatex.in.access_mask = SEC_FLAG_MAXIMUM_ALLOWED;
	op.ntcreatex.in.create_options = 0;
	op.ntcreatex.in.file_attr = FILE_ATTRIBUTE_NORMAL;
	op.ntcreatex.in.share_access = NTCREATEX_SHARE_ACCESS_READ | NTCREATEX_SHARE_ACCESS_WRITE;
	op.ntcreatex.in.alloc_size = 0;
	op.ntcreatex.in.open_disposition = NTCREATEX_DISP_CREATE;
	op.ntcreatex.in.impersonation = NTCREATEX_IMPERSONATION_ANONYMOUS;
	op.ntcreatex.in.security_flags = 0;
	op.ntcreatex.in.fname = fname;
	status = smb_raw_open(cli->tree, tctx, &op);
	CHECK_STATUS(status, NT_STATUS_OK);
	fnum = op.ntcreatex.out.file.fnum;

	wr.generic.level = RAW_WRITE_WRITEX;
	wr.writex.in.file.fnum = fnum;
	wr.writex.in.offset = 0;
	wr.writex.in.wmode = 0;
	wr.writex.in.remaining = 0;
	wr.writex.in.count = ARRAY_SIZE(data);
	wr.writex.in.data = data;
	status = smb_raw_write(cli->tree, &wr);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(wr.writex.out.nwritten, ARRAY_SIZE(data));

	status = smbcli_close(cli->tree, fnum);
	CHECK_STATUS(status, NT_STATUS_OK);

	printf("open file with SEC_FILE_EXECUTE\n");
	op.generic.level = RAW_OPEN_NTCREATEX;
	op.ntcreatex.in.root_fid.fnum = 0;
	op.ntcreatex.in.flags = 0;
	op.ntcreatex.in.access_mask = SEC_FILE_EXECUTE;
	op.ntcreatex.in.create_options = 0;
	op.ntcreatex.in.file_attr = FILE_ATTRIBUTE_NORMAL;
	op.ntcreatex.in.share_access = NTCREATEX_SHARE_ACCESS_READ | NTCREATEX_SHARE_ACCESS_WRITE;
	op.ntcreatex.in.alloc_size = 0;
	op.ntcreatex.in.open_disposition = NTCREATEX_DISP_OPEN;
	op.ntcreatex.in.impersonation = NTCREATEX_IMPERSONATION_ANONYMOUS;
	op.ntcreatex.in.security_flags = 0;
	op.ntcreatex.in.fname = fname;
	status = smb_raw_open(cli->tree, tctx, &op);
	CHECK_STATUS(status, NT_STATUS_OK);
	fnum = op.ntcreatex.out.file.fnum;

	printf("read with FLAGS2_READ_PERMIT_EXECUTE\n");
	rd.generic.level = RAW_READ_READX;
	rd.readx.in.file.fnum = fnum;
	rd.readx.in.mincnt = 0;
	rd.readx.in.maxcnt = maxsize;
	rd.readx.in.offset = 0;
	rd.readx.in.remaining = 0;
	rd.readx.in.read_for_execute = true;
	rd.readx.out.data = buf;
	status = smb_raw_read(cli->tree, &rd);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(rd.readx.out.nread, ARRAY_SIZE(data));
	CHECK_VALUE(rd.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(rd.readx.out.compaction_mode, 0);

	printf("read without FLAGS2_READ_PERMIT_EXECUTE (should fail)\n");
	rd.generic.level = RAW_READ_READX;
	rd.readx.in.file.fnum = fnum;
	rd.readx.in.mincnt = 0;
	rd.readx.in.maxcnt = maxsize;
	rd.readx.in.offset = 0;
	rd.readx.in.remaining = 0;
	rd.readx.in.read_for_execute = false;
	rd.readx.out.data = buf;
	status = smb_raw_read(cli->tree, &rd);
	CHECK_STATUS(status, NT_STATUS_ACCESS_DENIED);

	status = smbcli_close(cli->tree, fnum);
	CHECK_STATUS(status, NT_STATUS_OK);

	printf("open file with SEC_FILE_READ_DATA\n");
	op.generic.level = RAW_OPEN_NTCREATEX;
	op.ntcreatex.in.root_fid.fnum = 0;
	op.ntcreatex.in.flags = 0;
	op.ntcreatex.in.access_mask = SEC_FILE_READ_DATA;
	op.ntcreatex.in.create_options = 0;
	op.ntcreatex.in.file_attr = FILE_ATTRIBUTE_NORMAL;
	op.ntcreatex.in.share_access = NTCREATEX_SHARE_ACCESS_READ | NTCREATEX_SHARE_ACCESS_WRITE;
	op.ntcreatex.in.alloc_size = 0;
	op.ntcreatex.in.open_disposition = NTCREATEX_DISP_OPEN;
	op.ntcreatex.in.impersonation = NTCREATEX_IMPERSONATION_ANONYMOUS;
	op.ntcreatex.in.security_flags = 0;
	op.ntcreatex.in.fname = fname;
	status = smb_raw_open(cli->tree, tctx, &op);
	CHECK_STATUS(status, NT_STATUS_OK);
	fnum = op.ntcreatex.out.file.fnum;

	printf("read with FLAGS2_READ_PERMIT_EXECUTE\n");
	rd.generic.level = RAW_READ_READX;
	rd.readx.in.file.fnum = fnum;
	rd.readx.in.mincnt = 0;
	rd.readx.in.maxcnt = maxsize;
	rd.readx.in.offset = 0;
	rd.readx.in.remaining = 0;
	rd.readx.in.read_for_execute = true;
	rd.readx.out.data = buf;
	status = smb_raw_read(cli->tree, &rd);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(rd.readx.out.nread, ARRAY_SIZE(data));
	CHECK_VALUE(rd.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(rd.readx.out.compaction_mode, 0);

	printf("read without FLAGS2_READ_PERMIT_EXECUTE\n");
	rd.generic.level = RAW_READ_READX;
	rd.readx.in.file.fnum = fnum;
	rd.readx.in.mincnt = 0;
	rd.readx.in.maxcnt = maxsize;
	rd.readx.in.offset = 0;
	rd.readx.in.remaining = 0;
	rd.readx.in.read_for_execute = false;
	rd.readx.out.data = buf;
	status = smb_raw_read(cli->tree, &rd);
	CHECK_STATUS(status, NT_STATUS_OK);
	CHECK_VALUE(rd.readx.out.nread, ARRAY_SIZE(data));
	CHECK_VALUE(rd.readx.out.remaining, 0xFFFF);
	CHECK_VALUE(rd.readx.out.compaction_mode, 0);

done:
	smbcli_close(cli->tree, fnum);
	smbcli_deltree(cli->tree, BASEDIR);
	return ret;
}


/* 
   basic testing of read calls
*/
struct torture_suite *torture_raw_read(TALLOC_CTX *mem_ctx)
{
	struct torture_suite *suite = torture_suite_create(mem_ctx, "read");

	torture_suite_add_1smb_test(suite, "read", test_read);
	torture_suite_add_1smb_test(suite, "readx", test_readx);
	torture_suite_add_1smb_test(suite, "lockread", test_lockread);
	torture_suite_add_1smb_test(suite, "readbraw", test_readbraw);
	torture_suite_add_1smb_test(suite, "read for execute", 
		test_read_for_execute);

	return suite;
}