summaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/sysctl/sysctl.sh
blob: 444b2befda8275ca2674097ed9bf35f914345a96 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-or-later OR copyleft-next-0.3.1
# Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>

# This performs a series tests against the proc sysctl interface.

# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4

TEST_NAME="sysctl"
TEST_DRIVER="test_${TEST_NAME}"
TEST_DIR=$(dirname $0)
TEST_FILE=$(mktemp)

# This represents
#
# TEST_ID:TEST_COUNT:ENABLED:TARGET:SKIP_NO_TARGET
#
# TEST_ID: is the test id number
# TEST_COUNT: number of times we should run the test
# ENABLED: 1 if enabled, 0 otherwise
# TARGET: test target file required on the test_sysctl module
# SKIP_NO_TARGET: 1 skip if TARGET not there
#                 0 run eventhough TARGET not there
#
# Once these are enabled please leave them as-is. Write your own test,
# we have tons of space.
ALL_TESTS="0001:1:1:int_0001:1"
ALL_TESTS="$ALL_TESTS 0002:1:1:string_0001:1"
ALL_TESTS="$ALL_TESTS 0003:1:1:int_0002:1"
ALL_TESTS="$ALL_TESTS 0004:1:1:uint_0001:1"
ALL_TESTS="$ALL_TESTS 0005:3:1:int_0003:1"
ALL_TESTS="$ALL_TESTS 0006:50:1:bitmap_0001:1"
ALL_TESTS="$ALL_TESTS 0007:1:1:boot_int:1"
ALL_TESTS="$ALL_TESTS 0008:1:1:match_int:1"
ALL_TESTS="$ALL_TESTS 0009:1:1:unregister_error:0"
ALL_TESTS="$ALL_TESTS 0010:1:1:mnt/mnt_error:0"

function allow_user_defaults()
{
	if [ -z $DIR ]; then
		DIR="/sys/module/test_sysctl/"
	fi
	if [ -z $DEFAULT_NUM_TESTS ]; then
		DEFAULT_NUM_TESTS=50
	fi
	if [ -z $SYSCTL ]; then
		SYSCTL="/proc/sys/debug/test_sysctl"
	fi
	if [ -z $PROD_SYSCTL ]; then
		PROD_SYSCTL="/proc/sys"
	fi
	if [ -z $WRITES_STRICT ]; then
		WRITES_STRICT="${PROD_SYSCTL}/kernel/sysctl_writes_strict"
	fi
}

function check_production_sysctl_writes_strict()
{
	echo -n "Checking production write strict setting ... "
	if [ ! -e ${WRITES_STRICT} ]; then
		echo "FAIL, but skip in case of old kernel" >&2
	else
		old_strict=$(cat ${WRITES_STRICT})
		if [ "$old_strict" = "1" ]; then
			echo "ok"
		else
			echo "FAIL, strict value is 0 but force to 1 to continue" >&2
			echo "1" > ${WRITES_STRICT}
		fi
	fi

	if [ -z $PAGE_SIZE ]; then
		PAGE_SIZE=$(getconf PAGESIZE)
	fi
	if [ -z $MAX_DIGITS ]; then
		MAX_DIGITS=$(($PAGE_SIZE/8))
	fi
	if [ -z $INT_MAX ]; then
		INT_MAX=$(getconf INT_MAX)
	fi
	if [ -z $UINT_MAX ]; then
		UINT_MAX=$(getconf UINT_MAX)
	fi
}

test_reqs()
{
	uid=$(id -u)
	if [ $uid -ne 0 ]; then
		echo $msg must be run as root >&2
		exit $ksft_skip
	fi

	if ! which perl 2> /dev/null > /dev/null; then
		echo "$0: You need perl installed"
		exit $ksft_skip
	fi
	if ! which getconf 2> /dev/null > /dev/null; then
		echo "$0: You need getconf installed"
		exit $ksft_skip
	fi
	if ! which diff 2> /dev/null > /dev/null; then
		echo "$0: You need diff installed"
		exit $ksft_skip
	fi
}

function load_req_mod()
{
	if [ ! -d $SYSCTL ]; then
		if ! modprobe -q -n $TEST_DRIVER; then
			echo "$0: module $TEST_DRIVER not found [SKIP]"
			echo "You must set CONFIG_TEST_SYSCTL=m in your kernel" >&2
			exit $ksft_skip
		fi
		modprobe $TEST_DRIVER
		if [ $? -ne 0 ]; then
			echo "$0: modprobe $TEST_DRIVER failed."
			exit
		fi
	fi
}

reset_vals()
{
	VAL=""
	TRIGGER=$(basename ${TARGET})
	case "$TRIGGER" in
		int_0001)
			VAL="60"
			;;
		int_0002)
			VAL="1"
			;;
		uint_0001)
			VAL="314"
			;;
		string_0001)
			VAL="(none)"
			;;
		bitmap_0001)
			VAL=""
			;;
		*)
			;;
	esac
	echo -n $VAL > $TARGET
}

set_orig()
{
	if [ ! -z $TARGET ] && [ ! -z $ORIG ]; then
		if [ -f ${TARGET} ]; then
			echo "${ORIG}" > "${TARGET}"
		fi
	fi
}

set_test()
{
	echo "${TEST_STR}" > "${TARGET}"
}

verify()
{
	local seen
	seen=$(cat "$1")
	if [ "${seen}" != "${TEST_STR}" ]; then
		return 1
	fi
	return 0
}

# proc files get read a page at a time, which can confuse diff,
# and get you incorrect results on proc files with long data. To use
# diff against them you must first extract the output to a file, and
# then compare against that file.
verify_diff_proc_file()
{
	TMP_DUMP_FILE=$(mktemp)
	cat $1 > $TMP_DUMP_FILE

	if ! diff -w -q $TMP_DUMP_FILE $2; then
		return 1
	else
		return 0
	fi
}

verify_diff_w()
{
	echo "$TEST_STR" | diff -q -w -u - $1 > /dev/null
	return $?
}

test_rc()
{
	if [[ $rc != 0 ]]; then
		echo "Failed test, return value: $rc" >&2
		exit $rc
	fi
}

test_finish()
{
	set_orig
	rm -f "${TEST_FILE}"

	if [ ! -z ${old_strict} ]; then
		echo ${old_strict} > ${WRITES_STRICT}
	fi
	exit $rc
}

run_numerictests()
{
	echo "== Testing sysctl behavior against ${TARGET} =="

	rc=0

	echo -n "Writing test file ... "
	echo "${TEST_STR}" > "${TEST_FILE}"
	if ! verify "${TEST_FILE}"; then
		echo "FAIL" >&2
		exit 1
	else
		echo "ok"
	fi

	echo -n "Checking sysctl is not set to test value ... "
	if verify "${TARGET}"; then
		echo "FAIL" >&2
		exit 1
	else
		echo "ok"
	fi

	echo -n "Writing sysctl from shell ... "
	set_test
	if ! verify "${TARGET}"; then
		echo "FAIL" >&2
		exit 1
	else
		echo "ok"
	fi

	echo -n "Resetting sysctl to original value ... "
	set_orig
	if verify "${TARGET}"; then
		echo "FAIL" >&2
		exit 1
	else
		echo "ok"
	fi

	# Now that we've validated the sanity of "set_test" and "set_orig",
	# we can use those functions to set starting states before running
	# specific behavioral tests.

	echo -n "Writing entire sysctl in single write ... "
	set_orig
	dd if="${TEST_FILE}" of="${TARGET}" bs=4096 2>/dev/null
	if ! verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi

	echo -n "Writing middle of sysctl after synchronized seek ... "
	set_test
	dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 skip=1 2>/dev/null
	if ! verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi

	echo -n "Writing beyond end of sysctl ... "
	set_orig
	dd if="${TEST_FILE}" of="${TARGET}" bs=20 seek=2 2>/dev/null
	if verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi

	echo -n "Writing sysctl with multiple long writes ... "
	set_orig
	(perl -e 'print "A" x 50;'; echo "${TEST_STR}") | \
		dd of="${TARGET}" bs=50 2>/dev/null
	if verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc
}

check_failure()
{
	echo -n "Testing that $1 fails as expected..."
	reset_vals
	TEST_STR="$1"
	orig="$(cat $TARGET)"
	echo -n "$TEST_STR" > $TARGET 2> /dev/null

	# write should fail and $TARGET should retain its original value
	if [ $? = 0 ] || [ "$(cat $TARGET)" != "$orig" ]; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc
}

run_wideint_tests()
{
	# sysctl conversion functions receive a boolean sign and ulong
	# magnitude; here we list the magnitudes we want to test (each of
	# which will be tested in both positive and negative forms).  Since
	# none of these values fit in 32 bits, writing them to an int- or
	# uint-typed sysctl should fail.
	local magnitudes=(
		# common boundary-condition values (zero, +1, -1, INT_MIN,
		# and INT_MAX respectively) if truncated to lower 32 bits
		# (potential for being falsely deemed in range)
		0x0000000100000000
		0x0000000100000001
		0x00000001ffffffff
		0x0000000180000000
		0x000000017fffffff

		# these look like negatives, but without a leading '-' are
		# actually large positives (should be rejected as above
		# despite being zero/+1/-1/INT_MIN/INT_MAX in the lower 32)
		0xffffffff00000000
		0xffffffff00000001
		0xffffffffffffffff
		0xffffffff80000000
		0xffffffff7fffffff
	)

	for sign in '' '-'; do
		for mag in "${magnitudes[@]}"; do
			check_failure "${sign}${mag}"
		done
	done
}

# Your test must accept digits 3 and 4 to use this
run_limit_digit()
{
	echo -n "Checking ignoring spaces up to PAGE_SIZE works on write ..."
	reset_vals

	LIMIT=$((MAX_DIGITS -1))
	TEST_STR="3"
	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
		dd of="${TARGET}" 2>/dev/null

	if ! verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc

	echo -n "Checking passing PAGE_SIZE of spaces fails on write ..."
	reset_vals

	LIMIT=$((MAX_DIGITS))
	TEST_STR="4"
	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
		dd of="${TARGET}" 2>/dev/null

	if verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc
}

# You are using an int
run_limit_digit_int()
{
	echo -n "Testing INT_MAX works ..."
	reset_vals
	TEST_STR="$INT_MAX"
	echo -n $TEST_STR > $TARGET

	if ! verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc

	echo -n "Testing INT_MAX + 1 will fail as expected..."
	reset_vals
	let TEST_STR=$INT_MAX+1
	echo -n $TEST_STR > $TARGET 2> /dev/null

	if verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc

	echo -n "Testing negative values will work as expected..."
	reset_vals
	TEST_STR="-3"
	echo -n $TEST_STR > $TARGET 2> /dev/null
	if ! verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc
}

# You used an int array
run_limit_digit_int_array()
{
	echo -n "Testing array works as expected ... "
	TEST_STR="4 3 2 1"
	echo -n $TEST_STR > $TARGET

	if ! verify_diff_w "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc

	echo -n "Testing skipping trailing array elements works ... "
	# Do not reset_vals, carry on the values from the last test.
	# If we only echo in two digits the last two are left intact
	TEST_STR="100 101"
	echo -n $TEST_STR > $TARGET
	# After we echo in, to help diff we need to set on TEST_STR what
	# we expect the result to be.
	TEST_STR="100 101 2 1"

	if ! verify_diff_w "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc

	echo -n "Testing PAGE_SIZE limit on array works ... "
	# Do not reset_vals, carry on the values from the last test.
	# Even if you use an int array, you are still restricted to
	# MAX_DIGITS, this is a known limitation. Test limit works.
	LIMIT=$((MAX_DIGITS -1))
	TEST_STR="9"
	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
		dd of="${TARGET}" 2>/dev/null

	TEST_STR="9 101 2 1"
	if ! verify_diff_w "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc

	echo -n "Testing exceeding PAGE_SIZE limit fails as expected ... "
	# Do not reset_vals, carry on the values from the last test.
	# Now go over limit.
	LIMIT=$((MAX_DIGITS))
	TEST_STR="7"
	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
		dd of="${TARGET}" 2>/dev/null

	TEST_STR="7 101 2 1"
	if verify_diff_w "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc
}

# You are using an unsigned int
run_limit_digit_uint()
{
	echo -n "Testing UINT_MAX works ..."
	reset_vals
	TEST_STR="$UINT_MAX"
	echo -n $TEST_STR > $TARGET

	if ! verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc

	echo -n "Testing UINT_MAX + 1 will fail as expected..."
	reset_vals
	TEST_STR=$(($UINT_MAX+1))
	echo -n $TEST_STR > $TARGET 2> /dev/null

	if verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc

	echo -n "Testing negative values will not work as expected ..."
	reset_vals
	TEST_STR="-3"
	echo -n $TEST_STR > $TARGET 2> /dev/null

	if verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi
	test_rc
}

run_stringtests()
{
	echo -n "Writing entire sysctl in short writes ... "
	set_orig
	dd if="${TEST_FILE}" of="${TARGET}" bs=1 2>/dev/null
	if ! verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi

	echo -n "Writing middle of sysctl after unsynchronized seek ... "
	set_test
	dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 2>/dev/null
	if verify "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi

	echo -n "Checking sysctl maxlen is at least $MAXLEN ... "
	set_orig
	perl -e 'print "A" x ('"${MAXLEN}"'-2), "B";' | \
		dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
	if ! grep -q B "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi

	echo -n "Checking sysctl keeps original string on overflow append ... "
	set_orig
	perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
		dd of="${TARGET}" bs=$(( MAXLEN - 1 )) 2>/dev/null
	if grep -q B "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi

	echo -n "Checking sysctl stays NULL terminated on write ... "
	set_orig
	perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
		dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
	if grep -q B "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi

	echo -n "Checking sysctl stays NULL terminated on overwrite ... "
	set_orig
	perl -e 'print "A" x ('"${MAXLEN}"'-1), "BB";' | \
		dd of="${TARGET}" bs=$(( $MAXLEN + 1 )) 2>/dev/null
	if grep -q B "${TARGET}"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
	fi

	test_rc
}

target_exists()
{
	TARGET="${SYSCTL}/$1"
	TEST_ID="$2"

	if [ ! -f ${TARGET} ] ; then
		return 0
	fi
	return 1
}

run_bitmaptest() {
	# Total length of bitmaps string to use, a bit under
	# the maximum input size of the test node
	LENGTH=$((RANDOM % 65000))

	# First bit to set
	BIT=$((RANDOM % 1024))

	# String containing our list of bits to set
	TEST_STR=$BIT

	# build up the string
	while [ "${#TEST_STR}" -le "$LENGTH" ]; do
		# Make sure next entry is discontiguous,
		# skip ahead at least 2
		BIT=$((BIT + $((2 + RANDOM % 10))))

		# Add new bit to the list
		TEST_STR="${TEST_STR},${BIT}"

		# Randomly make it a range
		if [ "$((RANDOM % 2))" -eq "1" ]; then
			RANGE_END=$((BIT + $((1 + RANDOM % 10))))
			TEST_STR="${TEST_STR}-${RANGE_END}"
			BIT=$RANGE_END
		fi
	done

	echo -n "Checking bitmap handler... "
	TEST_FILE=$(mktemp)
	echo -n "$TEST_STR" > $TEST_FILE

	cat $TEST_FILE > $TARGET 2> /dev/null
	if [ $? -ne 0 ]; then
		echo "FAIL" >&2
		rc=1
		test_rc
	fi

	if ! verify_diff_proc_file "$TARGET" "$TEST_FILE"; then
		echo "FAIL" >&2
		rc=1
	else
		echo "ok"
		rc=0
	fi
	test_rc
}

sysctl_test_0001()
{
	TARGET="${SYSCTL}/$(get_test_target 0001)"
	reset_vals
	ORIG=$(cat "${TARGET}")
	TEST_STR=$(( $ORIG + 1 ))

	run_numerictests
	run_wideint_tests
	run_limit_digit
}

sysctl_test_0002()
{
	TARGET="${SYSCTL}/$(get_test_target 0002)"
	reset_vals
	ORIG=$(cat "${TARGET}")
	TEST_STR="Testing sysctl"
	# Only string sysctls support seeking/appending.
	MAXLEN=65

	run_numerictests
	run_stringtests
}

sysctl_test_0003()
{
	TARGET="${SYSCTL}/$(get_test_target 0003)"
	reset_vals
	ORIG=$(cat "${TARGET}")
	TEST_STR=$(( $ORIG + 1 ))

	run_numerictests
	run_wideint_tests
	run_limit_digit
	run_limit_digit_int
}

sysctl_test_0004()
{
	TARGET="${SYSCTL}/$(get_test_target 0004)"
	reset_vals
	ORIG=$(cat "${TARGET}")
	TEST_STR=$(( $ORIG + 1 ))

	run_numerictests
	run_wideint_tests
	run_limit_digit
	run_limit_digit_uint
}

sysctl_test_0005()
{
	TARGET="${SYSCTL}/$(get_test_target 0005)"
	reset_vals
	ORIG=$(cat "${TARGET}")

	run_limit_digit_int_array
}

sysctl_test_0006()
{
	TARGET="${SYSCTL}/$(get_test_target 0006)"
	reset_vals
	ORIG=""
	run_bitmaptest
}

sysctl_test_0007()
{
	TARGET="${SYSCTL}/$(get_test_target 0007)"
	if [ ! -f $TARGET ]; then
		echo "Skipping test for $TARGET as it is not present ..."
		return $ksft_skip
	fi

	if [ -d $DIR ]; then
		echo "Boot param test only possible sysctl_test is built-in, not module:"
		cat $TEST_DIR/config >&2
		return $ksft_skip
	fi

	echo -n "Testing if $TARGET is set to 1 ..."
	ORIG=$(cat "${TARGET}")

	if [ x$ORIG = "x1" ]; then
		echo "ok"
		return 0
	fi
	echo "FAIL"
	echo "Checking if /proc/cmdline contains setting of the expected parameter ..."
	if [ ! -f /proc/cmdline ]; then
		echo "/proc/cmdline does not exist, test inconclusive"
		return 0
	fi

	FOUND=$(grep -c "sysctl[./]debug[./]test_sysctl[./]boot_int=1" /proc/cmdline)
	if [ $FOUND = "1" ]; then
		echo "Kernel param found but $TARGET is not 1, TEST FAILED"
		rc=1
		test_rc
	fi

	echo "Skipping test, expected kernel parameter missing."
	echo "To perform this test, make sure kernel is booted with parameter: sysctl.debug.test_sysctl.boot_int=1"
	return $ksft_skip
}

sysctl_test_0008()
{
	TARGET="${SYSCTL}/$(get_test_target 0008)"
	if [ ! -f $TARGET ]; then
		echo "Skipping test for $TARGET as it is not present ..."
		return $ksft_skip
	fi

	echo -n "Testing if $TARGET is matched in kernel"
	ORIG_VALUE=$(cat "${TARGET}")

	if [ $ORIG_VALUE -ne 1 ]; then
		echo "TEST FAILED"
		rc=1
		test_rc
	fi

	echo "ok"
	return 0
}

sysctl_test_0009()
{
	TARGET="${SYSCTL}/$(get_test_target 0009)"
	echo -n "Testing if $TARGET unregistered correctly ..."
	if [ -d $TARGET ]; then
		echo "TEST FAILED"
		rc=1
		test_rc
	fi

	echo "ok"
	return 0
}

sysctl_test_0010()
{
	TARGET="${SYSCTL}/$(get_test_target 0010)"
	echo -n "Testing that $TARGET was not created  ..."
	if [ -d $TARGET ]; then
		echo "TEST FAILED"
		rc=1
		test_rc
	fi

	echo "ok"
	return 0
}

list_tests()
{
	echo "Test ID list:"
	echo
	echo "TEST_ID x NUM_TEST"
	echo "TEST_ID:   Test ID"
	echo "NUM_TESTS: Number of recommended times to run the test"
	echo
	echo "0001 x $(get_test_count 0001) - tests proc_dointvec_minmax()"
	echo "0002 x $(get_test_count 0002) - tests proc_dostring()"
	echo "0003 x $(get_test_count 0003) - tests proc_dointvec()"
	echo "0004 x $(get_test_count 0004) - tests proc_douintvec()"
	echo "0005 x $(get_test_count 0005) - tests proc_douintvec() array"
	echo "0006 x $(get_test_count 0006) - tests proc_do_large_bitmap()"
	echo "0007 x $(get_test_count 0007) - tests setting sysctl from kernel boot param"
	echo "0008 x $(get_test_count 0008) - tests sysctl macro values match"
	echo "0009 x $(get_test_count 0009) - tests sysct unregister"
	echo "0010 x $(get_test_count 0010) - tests sysct mount point"
}

usage()
{
	NUM_TESTS=$(grep -o ' ' <<<"$ALL_TESTS" | grep -c .)
	let NUM_TESTS=$NUM_TESTS+1
	MAX_TEST=$(printf "%04d\n" $NUM_TESTS)
	echo "Usage: $0 [ -t <4-number-digit> ] | [ -w <4-number-digit> ] |"
	echo "		 [ -s <4-number-digit> ] | [ -c <4-number-digit> <test- count>"
	echo "           [ all ] [ -h | --help ] [ -l ]"
	echo ""
	echo "Valid tests: 0001-$MAX_TEST"
	echo ""
	echo "    all     Runs all tests (default)"
	echo "    -t      Run test ID the number amount of times is recommended"
	echo "    -w      Watch test ID run until it runs into an error"
	echo "    -c      Run test ID once"
	echo "    -s      Run test ID x test-count number of times"
	echo "    -l      List all test ID list"
	echo " -h|--help  Help"
	echo
	echo "If an error every occurs execution will immediately terminate."
	echo "If you are adding a new test try using -w <test-ID> first to"
	echo "make sure the test passes a series of tests."
	echo
	echo Example uses:
	echo
	echo "$TEST_NAME.sh            -- executes all tests"
	echo "$TEST_NAME.sh -t 0002    -- Executes test ID 0002 number of times is recomended"
	echo "$TEST_NAME.sh -w 0002    -- Watch test ID 0002 run until an error occurs"
	echo "$TEST_NAME.sh -s 0002    -- Run test ID 0002 once"
	echo "$TEST_NAME.sh -c 0002 3  -- Run test ID 0002 three times"
	echo
	list_tests
	exit 1
}

function test_num()
{
	re='^[0-9]+$'
	if ! [[ $1 =~ $re ]]; then
		usage
	fi
}
function remove_leading_zeros()
{
	echo $1 | sed 's/^0*//'
}

function get_test_count()
{
	test_num $1
	awk_field=$(remove_leading_zeros $1)
	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$awk_field'}')
	echo ${TEST_DATA} | awk -F":" '{print $2}'
}

function get_test_enabled()
{
	test_num $1
	awk_field=$(remove_leading_zeros $1)
	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$awk_field'}')
	echo ${TEST_DATA} | awk -F":" '{print $3}'
}

function get_test_target()
{
	test_num $1
	awk_field=$(remove_leading_zeros $1)
	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$awk_field'}')
	echo ${TEST_DATA} | awk -F":" '{print $4}'
}

function get_test_skip_no_target()
{
	test_num $1
	awk_field=$(remove_leading_zeros $1)
	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$awk_field'}')
	echo ${TEST_DATA} | awk -F":" '{print $5}'
}

function skip_test()
{
	TEST_ID=$1
	TEST_TARGET=$2
	if target_exists $TEST_TARGET $TEST_ID; then
		TEST_SKIP=$(get_test_skip_no_target $TEST_ID)
		if [[ $TEST_SKIP -eq "1" ]]; then
			echo "Target for test $TEST_ID: $TEST_TARGET not exist, skipping test ..."
			return 0
		fi
	fi
	return 1
}

function run_all_tests()
{
	for i in $ALL_TESTS ; do
		TEST_ID=${i%:*:*:*:*}
		ENABLED=$(get_test_enabled $TEST_ID)
		TEST_COUNT=$(get_test_count $TEST_ID)
		TEST_TARGET=$(get_test_target $TEST_ID)

		if [[ $ENABLED -eq "1" ]]; then
			test_case $TEST_ID $TEST_COUNT $TEST_TARGET
		fi
	done
}

function watch_log()
{
	if [ $# -ne 3 ]; then
		clear
	fi
	date
	echo "Running test: $2 - run #$1"
}

function watch_case()
{
	i=0
	while [ 1 ]; do

		if [ $# -eq 1 ]; then
			test_num $1
			watch_log $i ${TEST_NAME}_test_$1
			${TEST_NAME}_test_$1
		else
			watch_log $i all
			run_all_tests
		fi
		let i=$i+1
	done
}

function test_case()
{
	TEST_ID=$1
	NUM_TESTS=$2
	TARGET=$3

	if skip_test $TEST_ID $TARGET; then
		return
	fi

	i=0
	while [ $i -lt $NUM_TESTS ]; do
		test_num $TEST_ID
		watch_log $i ${TEST_NAME}_test_${TEST_ID} noclear
		RUN_TEST=${TEST_NAME}_test_${TEST_ID}
		$RUN_TEST
		let i=$i+1
	done
}

function parse_args()
{
	if [ $# -eq 0 ]; then
		run_all_tests
	else
		if [[ "$1" = "all" ]]; then
			run_all_tests
		elif [[ "$1" = "-w" ]]; then
			shift
			watch_case $@
		elif [[ "$1" = "-t" ]]; then
			shift
			test_num $1
			test_case $1 $(get_test_count $1) $(get_test_target $1)
		elif [[ "$1" = "-c" ]]; then
			shift
			test_num $1
			test_num $2
			test_case $1 $2 $(get_test_target $1)
		elif [[ "$1" = "-s" ]]; then
			shift
			test_case $1 1 $(get_test_target $1)
		elif [[ "$1" = "-l" ]]; then
			list_tests
		elif [[ "$1" = "-h" || "$1" = "--help" ]]; then
			usage
		else
			usage
		fi
	fi
}

test_reqs
allow_user_defaults
check_production_sysctl_writes_strict
load_req_mod

trap "test_finish" EXIT

parse_args $@

exit 0