libsock: add functional tests

Change-Id: I3c86c1b4a9c8ae3f18264f33b15d647e4081a12c
Signed-off-by: Tomasz Kulasek <tomaszx.kulasek@intel.com>
Reviewed-on: https://review.gerrithub.io/421911
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>

test/common/autotest_common.sh

@@ -314,12 +314,12 @@ function waitforlisten() {
 		fi
 
 		if hash ss; then
-			if $ns_cmd ss -lx | egrep -q "\s+$rpc_addr\s+"; then
+			if $ns_cmd ss -ln | egrep -q "\s+$rpc_addr\s+"; then
 				ret=0
 			fi
 		else
 			# if system doesn't have ss, just assume it has netstat
-			if $ns_cmd netstat -an -x | grep -iw LISTENING | egrep -q "\s+$rpc_addr\$"; then
+			if $ns_cmd netstat -an | grep -iw LISTENING | egrep -q "\s+$rpc_addr\$"; then
 				ret=0
 			fi
 		fi

test/iscsi_tgt/common.sh

@@ -31,6 +31,9 @@ function create_veth_interfaces() {
 	ip netns add $TARGET_NAMESPACE
 	ip link set $TARGET_INTERFACE netns $TARGET_NAMESPACE
 
+	# Accept connections from veth interface
+	iptables -I INPUT 1 -i $INITIATOR_INTERFACE -p tcp --dport $ISCSI_PORT -j ACCEPT
+
 	$TARGET_NS_CMD ip link set lo up
 	$TARGET_NS_CMD ip addr add $TARGET_IP/24 dev $TARGET_INTERFACE
 	$TARGET_NS_CMD ip link set $TARGET_INTERFACE up

test/iscsi_tgt/iscsi_tgt.sh

@@ -32,6 +32,7 @@ create_veth_interfaces $TEST_TYPE
 start_stub "-s 2048 -i 0 -m $ISCSI_TEST_CORE_MASK"
 trap "kill_stub; cleanup_veth_interfaces $TEST_TYPE; exit 1" SIGINT SIGTERM EXIT
 
+run_test suite ./test/iscsi_tgt/sock/sock.sh
 run_test suite ./test/iscsi_tgt/calsoft/calsoft.sh
 run_test suite ./test/iscsi_tgt/filesystem/filesystem.sh
 run_test suite ./test/iscsi_tgt/reset/reset.sh

test/iscsi_tgt/sock/sock.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env bash
+
+testdir=$(readlink -f $(dirname $0))
+rootdir=$(readlink -f $testdir/../../..)
+source $rootdir/test/common/autotest_common.sh
+source $rootdir/test/iscsi_tgt/common.sh
+
+HELLO_SOCK_APP="$TARGET_NS_CMD $rootdir/examples/sock/hello_world/hello_sock"
+SOCAT_APP="socat"
+
+# ----------------
+# Test client path
+# ----------------
+timing_enter sock_client
+echo "Testing client path"
+
+# start echo server using socat
+$SOCAT_APP tcp-l:$ISCSI_PORT,fork,bind=$INITIATOR_IP exec:'/bin/cat' & server_pid=$!
+trap "killprocess $server_pid;exit 1" SIGINT SIGTERM EXIT
+
+waitforlisten $server_pid $INITIATOR_IP:$ISCSI_PORT
+
+# send message using hello_sock client
+message="**MESSAGE:This is a test message from the client**"
+response=$( echo $message | $HELLO_SOCK_APP -H $INITIATOR_IP -P $ISCSI_PORT )
+
+if ! echo "$response" | grep -q "$message"; then
+	exit 1
+fi
+
+trap '-' SIGINT SIGTERM EXIT
+# NOTE: socat returns code 143 on SIGINT
+killprocess $server_pid || true
+
+report_test_completion "sock_client"
+timing_exit sock_client
+
+# ----------------
+# Test server path
+# ----------------
+
+timing_enter sock_server
+
+# start echo server using hello_sock echo server
+$HELLO_SOCK_APP -H $TARGET_IP -P $ISCSI_PORT -S & server_pid=$!
+trap "killprocess $server_pid;exit 1" SIGINT SIGTERM EXIT
+waitforlisten $server_pid
+
+# send message to server using socat
+message="**MESSAGE:This is a test message to the server**"
+response=$( echo $message | $SOCAT_APP - tcp:$TARGET_IP:$ISCSI_PORT 2>/dev/null )
+
+if [ "$message" != "$response" ]; then
+	exit 1
+fi
+
+trap - SIGINT SIGTERM EXIT
+
+killprocess $server_pid
+
+report_test_completion "sock_server"
+timing_exit sock_server