Add 'filetest_001_pos' checksum tests, random data for file_write

- Add filetest_001_pos.ksh checksum sanity test
- Add option to write psudorandom data in file_write utility

tests/zfs-tests/cmd/file_write/file_write.c

@@ -30,6 +30,9 @@
 #include <inttypes.h>
 #include <sys/types.h>
 #include <unistd.h>
+#include <stdlib.h>
+#include <time.h>
+#include <stdint.h>
 
 typedef unsigned char	uchar_t;
 typedef long long	longlong_t;
@@ -44,6 +47,16 @@ static unsigned char bigbuffer[BIGBUFFERSIZE];
 
 static void usage(char *);
 
+/*
+ * psudo-randomize the buffer
+ */
+void randomize_buffer(int block_size) {
+	int i;
+	char rnd = rand() & 0xff;
+	for (i = 0; i < block_size; i++)
+		bigbuffer[i] ^= rnd;
+}
+
 int
 main(int argc, char **argv)
 {
@@ -81,7 +94,10 @@ main(int argc, char **argv)
 				write_count = atoi(optarg);
 				break;
 			case 'd':
-				fillchar = atoi(optarg);
+				if (optarg[0] == 'R')
+					fillchar = 'R'; /* R = random data */
+				else
+					fillchar = atoi(optarg);
 				break;
 			case 's':
 				offset = atoll(optarg);
@@ -135,6 +151,9 @@ main(int argc, char **argv)
 	nxtfillchar = fillchar;
 	k = 0;
 
+	if (fillchar == 'R')
+		srand(time(NULL));
+
 	for (i = 0; i < block_size; i++) {
 		bigbuffer[i] = nxtfillchar;
 
@@ -143,6 +162,8 @@ main(int argc, char **argv)
 				k = 0;
 			}
 			nxtfillchar = k++;
+		} else if (fillchar == 'R') {
+			nxtfillchar = rand() & 0xff;
 		}
 	}
 
@@ -188,14 +209,21 @@ main(int argc, char **argv)
 
 	if (verbose) {
 		(void) printf("%s: block_size = %d, write_count = %d, "
-		    "offset = %lld, data = %s%d\n", filename, block_size,
-		    write_count, offset,
-		    (fillchar == 0) ? "0->" : "",
-		    (fillchar == 0) ? DATA_RANGE : fillchar);
+		    "offset = %lld, ", filename, block_size,
+		    write_count, offset);
+		if (fillchar == 'R') {
+			(void) printf("data = [random]\n");
+		} else {
+			(void) printf("data = %s%d\n",
+			    (fillchar == 0) ? "0->" : "",
+			    (fillchar == 0) ? DATA_RANGE : fillchar);
+		}
 	}
 
 	for (i = 0; i < write_count; i++) {
 		ssize_t n;
+		if (fillchar == 'R')
+			randomize_buffer(block_size);
 
 		if ((n = write(bigfd, &bigbuffer, block_size)) == -1) {
 			(void) printf("write failed (%ld), good_writes = %"
@@ -221,9 +249,11 @@ usage(char *prog)
 {
 	(void) printf("Usage: %s [-v] -o {create,overwrite,append} -f file_name"
 	    " [-b block_size]\n"
-	    "\t[-s offset] [-c write_count] [-d data]\n"
-	    "\twhere [data] equal to zero causes chars "
-	    "0->%d to be repeated throughout\n", prog, DATA_RANGE);
+	    "\t[-s offset] [-c write_count] [-d data]\n\n"
+	    "Where [data] equal to zero causes chars "
+	    "0->%d to be repeated throughout, or [data]\n"
+	    "equal to 'R' for psudorandom data.\n",
+	    prog, DATA_RANGE);
 
 	exit(1);
 }

tests/zfs-tests/include/libtest.shlib

@@ -147,12 +147,14 @@ function default_setup_noexit
 	typeset disklist=$1
 	typeset container=$2
 	typeset volume=$3
+	log_note begin default_setup_noexit
 
 	if is_global_zone; then
 		if poolexists $TESTPOOL ; then
 			destroy_pool $TESTPOOL
 		fi
 		[[ -d /$TESTPOOL ]] && $RM -rf /$TESTPOOL
+		log_note creating poool $TESTPOOL $disklist
 		log_must $ZPOOL create -f $TESTPOOL $disklist
 	else
 		reexport_pool
@@ -1471,6 +1473,18 @@ function get_disklist # pool
 	$ECHO $disklist
 }
 
+#
+# Given a pool, and this function list all disks in the pool with their full
+# path (like "/dev/sda" instead of "sda").
+#
+function get_disklist_fullpath # pool
+{
+	args="-P $1"
+	get_disklist $args
+}
+
+
+
 # /**
 #  This function kills a given list of processes after a time period. We use
 #  this in the stress tests instead of STF_TIMEOUT so that we can have processes

tests/zfs-tests/include/properties.shlib

@@ -16,7 +16,8 @@
 typeset -a compress_props=('on' 'off' 'lzjb' 'gzip' 'gzip-1' 'gzip-2' 'gzip-3'
     'gzip-4' 'gzip-5' 'gzip-6' 'gzip-7' 'gzip-8' 'gzip-9' 'zle')
 
-typeset -a checksum_props=('on' 'off' 'fletcher2' 'fletcher4' 'sha256')
+typeset -a checksum_props=('on' 'off' 'fletcher2' 'fletcher4' 'sha256' 'sha512'
+    'edonr' 'skein' 'noparity')
 
 #
 # Given the property array passed in, return 'num_props' elements to the

tests/zfs-tests/tests/functional/checksum/Makefile.am

@@ -11,7 +11,8 @@ dist_pkgdata_SCRIPTS = \
 	cleanup.ksh \
 	run_edonr_test.ksh \
 	run_sha2_test.ksh \
-	run_skein_test.ksh
+	run_skein_test.ksh \
+	filetest_001_pos.ksh
 
 pkgexecdir = $(datadir)/@PACKAGE@/zfs-tests/tests/functional/checksum
 

tests/zfs-tests/tests/functional/checksum/filetest_001_pos.ksh

@@ -0,0 +1,125 @@
+#! /bin/ksh -p
+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License (the "License").
+# You may not use this file except in compliance with the License.
+#
+# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+# or http://www.opensolaris.org/os/licensing.
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each
+# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/include/properties.shlib
+
+# DESCRIPTION:
+# Sanity test to make sure checksum algorithms work.
+# For each checksum, create a file in the pool using that checksum.  Verify
+# that there are no checksum errors.  Next, for each checksum, create a single
+# file in the pool using that checksum, scramble the underlying vdev, and
+# verify that we correctly catch the checksum errors.
+#
+# STRATEGY:
+# Test 1
+# 1. Create a mirrored pool
+# 2. Create a file using each checksum
+# 3. Export/import/scrub the pool
+# 4. Verify there's no checksum errors.
+# 5. Clear the pool
+#
+# Test 2
+# 6. For each checksum:
+# 7.	Create a file using the checksum
+# 8.	Export the pool
+# 9.	Scramble the data on one of the underlying VDEVs
+# 10.	Import the pool
+# 11.	Scrub the pool
+# 12.	Verify that there are checksum errors 	
+
+verify_runnable "both"
+
+function cleanup
+{
+	$ECHO cleanup
+	[[ -e $TESTDIR ]] && \
+		log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
+}
+
+log_assert "Create and read back files with using different checksum algorithms"
+
+log_onexit cleanup
+
+FSSIZE=$($ZPOOL list -Hp -o size $TESTPOOL)
+WRITESZ=1048576
+WRITECNT=$((($FSSIZE) / $WRITESZ ))
+# Skip the first and last 4MB
+SKIP=4127518
+SKIPCNT=$((($SKIP / $WRITESZ )))
+SKIPCNT=$((($SKIPCNT * 2)))
+WRITECNT=$((($WRITECNT - $SKIPCNT)))
+
+# Get a list of vdevs in our pool	
+set -A array $(get_disklist_fullpath)
+
+# Get the first vdev, since we will corrupt it later
+firstvdev=${array[0]}
+
+# First test each checksum by writing a file using it, and confirm there's no
+# errors.
+for ((count = 0; count < ${#checksum_props[*]} ; count++)); do
+	i=${checksum_props[$count]}
+	$ZFS set checksum=$i $TESTPOOL
+	$FILE_WRITE -o overwrite -f $TESTDIR/test_$i -b $WRITESZ -c 5 -d R
+done
+$ZPOOL export $TESTPOOL
+$ZPOOL import $TESTPOOL
+$ZPOOL scrub $TESTPOOL
+while is_pool_scrubbing $TESTPOOL; do
+	$SLEEP 1
+done
+$ZPOOL status -P -v $TESTPOOL | grep $firstvdev | read -r name state rd wr cksum
+log_assert "Normal file write test saw: $cksum errors"
+log_must [ $cksum -eq 0 ]
+
+rm -fr $TESTDIR/*
+
+log_assert "Test scrambling the disk and seeing checksum errors"
+for ((count = 0; count < ${#checksum_props[*]} ; count++)); do
+	i=${checksum_props[$count]}
+	$ZFS set checksum=$i $TESTPOOL
+	$FILE_WRITE -o overwrite -f $TESTDIR/test_$i -b $WRITESZ -c 5 -d R
+
+	$ZPOOL export $TESTPOOL
+
+	# Scramble the data on the first vdev in our pool.
+	# Skip the first and last 16MB of data, then scramble the rest after that
+	#
+	$FILE_WRITE -o overwrite -f $firstvdev -s $SKIP -c $WRITECNT -b $WRITESZ -d R
+
+	$ZPOOL import $TESTPOOL
+
+	i=${checksum_props[$count]}
+	$ZPOOL scrub $TESTPOOL
+	while is_pool_scrubbing $TESTPOOL; do
+                $SLEEP 1
+        done
+
+	$ZPOOL status -P -v $TESTPOOL | grep $firstvdev | read -r name state rd wr cksum
+
+	log_assert "Checksum '$i' caught $cksum checksum errors"
+	log_must [ $cksum -ne 0 ]
+
+	rm -f $TESTDIR/test_$i
+	$ZPOOL clear $TESTPOOL
+done

tests/zfs-tests/tests/functional/checksum/setup.ksh

@@ -28,4 +28,4 @@
 . $STF_SUITE/include/libtest.shlib
 
 DISK=${DISKS%% *}
-default_setup $DISK
+default_mirror_setup $DISKS