test: verify forwarding to and reception from multicast group

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

test/Makefile.am

@@ -2,7 +2,7 @@ EXTRA_DIST       = lib.sh opts.sh
 EXTRA_DIST      += api.sh local.sh unicode.sh remote.sh fwd.sh mark.sh      \
 		   memleak.sh facility.sh notify.sh rotate_all.sh secure.sh \
 		   logger.sh listen.sh sighup.sh tag.sh hostname.sh 	    \
-                   property.sh raw.sh regression.sh multicast.sh
+                   property.sh raw.sh regression.sh multicast.sh mcast-fwd.sh
 CLEANFILES       = *~ *.trs *.log
 TEST_EXTENSIONS  = .sh
 TESTS_ENVIRONMENT= unshare -mrun
@@ -34,5 +34,6 @@ TESTS           += property.sh
 TESTS           += raw.sh
 TESTS           += regression.sh
 TESTS           += multicast.sh
+TESTS           += mcast-fwd.sh
 
 programs: $(check_PROGRAMS)

test/mcast-fwd.sh

@@ -0,0 +1,43 @@
+#!/bin/sh
+. "${srcdir:-.}/lib.sh"
+
+MSG="Copying foobar to xyzzy"
+GROUP=225.1.2.3
+
+setup_sender()
+{
+    cat <<-EOF >"${CONF}"
+	*.*		@$GROUP	;RFC5424
+	EOF
+    setup -m0
+
+    ip route add default via 127.0.0.1
+}
+
+setup_receiver()
+{
+    cat <<-EOF > "${CONF2}"
+	uucp.info	$LOG2
+	listen		$GROUP
+	EOF
+    setup2 -m0 -nH
+}
+
+verify_mcast_fwd()
+{
+    cap_start
+    logger -p uucp.info "$MSG"
+    cap_stop
+
+    cap_find "$MSG"
+}
+
+verify_mcast_rcv()
+{
+    grep -H "$MSG" "$LOG2"
+}
+
+run_step "Set up sender syslogd"      setup_sender
+run_step "Set up receiver syslogd"    setup_receiver
+run_step "Verify multicast forward"   verify_mcast_fwd
+run_step "Verify multicast received"  verify_mcast_rcv