@@ -0,0 +1,95 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2021 Hannes Reinecke, SUSE Labs
+#
+# Test dhchap key types for authenticated connections
+
+. tests/nvme/rc
+
+DESCRIPTION="Test dhchap key types for authenticated connections"
+QUICK=1
+
+requires() {
+	_nvme_requires
+	_have_modules loop
+	_require_nvme_trtype_is_fabrics
+	_require_nvme_cli_auth
+}
+
+
+test() {
+	local port
+	local subsys="blktests-subsystem-1"
+	local hostid="$(uuidgen)"
+	local hostnqn="nqn.2014-08.org.nvmexpress:uuid:${hostid}"
+	local scratch="/tmp/blktest-ns1.img"
+	local hostkey
+	local ctrldev
+
+	echo "Running ${TEST_NAME}"
+
+	_setup_nvmet
+
+	truncate -s 512M "${scratch}"
+
+	port="$(_create_nvmet_port "${nvme_trtype}")"
+
+	_create_nvmet_subsystem "${subsys}" "${scratch}"
+	_add_nvmet_subsys_to_port "${port}" "${subsys}"
+	_create_nvmet_host "${subsys}" "${hostnqn}"
+
+	for hmac in 0 1 2 3; do
+		echo "Testing hmac ${hmac}"
+		hostkey="$(nvme gen-dhchap-key --hmac=${hmac} -n ${subsys} 2> /dev/null)"
+		if [ $? -ne 0 ] ; then
+			echo "couldn't generate host key for hmac ${hmac}"
+			return 1
+		fi
+		_set_nvmet_hostkey "${hostnqn}" "${hostkey}"
+
+		_nvme_connect_subsys "${nvme_trtype}" "${subsys}" \
+				     "${def_traddr}" "${def_trsvcid}" \
+				     "${hostnqn}" "${hostid}" \
+				     "${hostkey}"
+
+		ctrldev=$(_find_nvme_dev "${subsys}")
+		if [ -z "$ctrldev" ] ; then
+			echo "nvme controller not found"
+		fi
+
+		_nvme_disconnect_subsys "${subsys}"
+	done
+
+	for key_len in 32 48 64; do
+		echo "Testing key length ${key_len}"
+		hostkey="$(nvme gen-dhchap-key --key-length=${key_len} -n ${subsys} 2> /dev/null)"
+		if [ $? -ne 0 ] ; then
+			echo "couldn't generate host key for length ${key_len}"
+			return 1
+		fi
+		_set_nvmet_hostkey "${hostnqn}" "${hostkey}"
+
+		_nvme_connect_subsys "${nvme_trtype}" "${subsys}" \
+				     "${def_traddr}" "${def_trsvcid}" \
+				     "${hostnqn}" "${hostid}" \
+				     "${hostkey}"
+
+		ctrldev=$(_find_nvme_dev "${subsys}")
+		if [ -z "$ctrldev" ] ; then
+			echo "nvme controller not found"
+		fi
+
+		_nvme_disconnect_subsys "${subsys}"
+	done
+
+	_remove_nvmet_subsystem_from_port "${port}" "${subsys}"
+	_remove_nvmet_subsystem "${subsys}"
+
+	_remove_nvmet_port "${port}"
+
+	_remove_nvmet_host "${hostnqn}"
+
+	rm ${scratch}
+
+	echo "Test complete"
+}

@@ -0,0 +1,16 @@
+Running nvme/040
+Testing hmac 0
+NQN:blktests-subsystem-1 disconnected 1 controller(s)
+Testing hmac 1
+NQN:blktests-subsystem-1 disconnected 1 controller(s)
+Testing hmac 2
+NQN:blktests-subsystem-1 disconnected 1 controller(s)
+Testing hmac 3
+NQN:blktests-subsystem-1 disconnected 1 controller(s)
+Testing key length 32
+NQN:blktests-subsystem-1 disconnected 1 controller(s)
+Testing key length 48
+NQN:blktests-subsystem-1 disconnected 1 controller(s)
+Testing key length 64
+NQN:blktests-subsystem-1 disconnected 1 controller(s)
+Test complete