tests: Skip all tests that require mdconfig when /dev/mdctl missing

When run in a jail, /dev/mdctl is missing. So skip any tests that use
mdconfig or mdmfs with md in this case: they can't possibly work. This
is in line with other tests that test for presence of required features
and skip if they aren't present. I did this instead of checking for
jails so they can still run in jails that allow creation of md devices.

Sponsored by:		Netflix

tests/sys/acl/00.sh

@@ -43,6 +43,10 @@ if [ $(id -u) -ne 0 ]; then
 	echo "1..0 # SKIP you must be root"
 	exit 0
 fi
+if [ ! -c /dev/mdctl ]; then
+	echo "1..0 # SKIP no /dev/mdctl to create md devices"
+	exit 0
+fi
 
 echo "1..4"
 

tests/sys/acl/01.sh

@@ -45,6 +45,10 @@ if [ $(id -u) -ne 0 ]; then
 	echo "1..0 # SKIP you must be root"
 	exit 0
 fi
+if [ ! -c /dev/mdctl ]; then
+	echo "1..0 # SKIP no /dev/mdctl to create md devices"
+	exit 0
+fi
 
 echo "1..4"
 

tests/sys/acl/02.sh

@@ -43,6 +43,10 @@ if [ $(id -u) -ne 0 ]; then
 	echo "1..0 # SKIP you must be root"
 	exit 0
 fi
+if [ ! -c /dev/mdctl ]; then
+	echo "1..0 # SKIP no /dev/mdctl to create md devices"
+	exit 0
+fi
 
 echo "1..4"
 

tests/sys/acl/03.sh

@@ -40,6 +40,10 @@ if [ $(id -u) -ne 0 ]; then
 	echo "1..0 # SKIP you must be root"
 	exit 0
 fi
+if [ ! -c /dev/mdctl ]; then
+	echo "1..0 # SKIP no /dev/mdctl to create md devices"
+	exit 0
+fi
 
 echo "1..5"
 

tests/sys/acl/04.sh

@@ -37,6 +37,10 @@ if [ $(id -u) -ne 0 ]; then
 	echo "1..0 # SKIP you must be root"
 	exit 0
 fi
+if [ ! -c /dev/mdctl ]; then
+	echo "1..0 # SKIP no /dev/mdctl to create md devices"
+	exit 0
+fi
 
 echo "1..3"
 

tests/sys/cddl/zfs/tests/cache/cache_test.sh

@@ -280,6 +280,7 @@ cache_010_neg_body()
 	. $(atf_get_srcdir)/cache.kshlib
 	. $(atf_get_srcdir)/cache.cfg
 
+	[ -c /dev/mdctl ] || atf_skip "no /dev/mdctl to create md devices"
 	verify_disk_count "$DISKS" 1
 	ksh93 $(atf_get_srcdir)/setup.ksh || atf_fail "Setup failed"
 	ksh93 $(atf_get_srcdir)/cache_010_neg.ksh || atf_fail "Testcase failed"

tests/sys/geom/class/eli/conf.sh

@@ -8,6 +8,7 @@ attach_md()
 {
 	local test_md
 
+	[ -c /dev/mdctl ] || atf_skip "no /dev/mdctl to create md devices"
 	test_md=$(mdconfig -a "$@") || atf_fail "failed to allocate md(4)"
 	echo $test_md >> $TEST_MDS_FILE || exit
 	echo $test_md

tests/sys/geom/class/geom_subr.sh

@@ -16,6 +16,7 @@ attach_md()
 {
 	local test_md
 
+	[ -c /dev/mdctl ] || atf_skip "no /dev/mdctl to create md devices"
 	test_md=$(mdconfig -a "$@") || exit
 	echo $test_md >> $TEST_MDS_FILE || exit
 	echo $test_md

tests/sys/geom/class/mirror/8_test.sh

@@ -4,6 +4,11 @@
 
 . `dirname $0`/conf.sh
 
+if ! [ -c /dev/mdctl ]; then
+    echo "1..0 # SKIP no /dev/mdctl to create md devices"
+    exit 0
+fi
+
 echo 1..1
 
 ddbs=2048

tests/sys/kern/sendfile_test.sh

@@ -124,6 +124,7 @@ alloc_md()
 {
 	local md
 
+	[ -c /dev/mdctl ] || atf_skip "no /dev/mdctl to create md devices"
 	md=$(mdconfig -a -t swap -s 256M) || atf_fail "mdconfig -a failed"
 	echo ${md} >> $MD_DEVS
 	echo ${md}

tests/sys/mac/bsdextended/matches_test.sh

@@ -27,6 +27,7 @@ setup()
 {
 	check_ko
 	mkdir mnt
+	[ -c /dev/mdctl ] || atf_skip "no /dev/mdctl to create md devices"
 	mdmfs -s 25m md mnt \
 		|| atf_fail "failed to mount md device"
 	chmod a+rwx mnt