Use scapy to test IPv6 packets with routing header type 0.

4 files changed, 193 insertions, 0 deletions

diff --git a/regress/sys/netinet6/rh0/Makefile b/regress/sys/netinet6/rh0/Makefile
new file mode 100644
index 00000000000..11417bd9535
--- /dev/null
+++ b/regress/sys/netinet6/rh0/Makefile
@@ -0,0 +1,70 @@
+#	$OpenBSD: Makefile,v 1.1 2013/10/20 13:45:44 bluhm Exp $
+
+# The following ports must be installed:
+#
+# python-2.7		interpreted object-oriented programming language
+# py-libdnet		python interface to libdnet
+# scapy			powerful interactive packet manipulation in python
+
+# This test needs a manual setup of two machines
+# Set up machines: SRC DST
+# SRC is the machine where this makefile is running.
+# DST is running OpenBSD with pf disabled to test the IPv6 stack.
+# SRT source routed host, no packets reach this host,
+#     it represents just bunch of addresses
+#
+# +---+   1   +---+       +---+
+# |SRC| ----> |DST|       |SRT|
+# +---+       +---+       +---+
+#     out    in   out    in   out
+
+# Configure Addresses on the machines.
+# Adapt interface and address variables to your local setup.
+#
+SRC_IF ?=	tun0
+SRC_MAC ?=	fe:e1:ba:d1:56:1f
+DST_MAC ?=	70:5f:ca:21:8d:70
+
+SRC_OUT6 ?=	fdd7:e83e:66bc:7:fce1:baff:fed2:26be
+DST_IN6 ?=	fdd7:e83e:66bc:7:725f:caff:fe21:8d70
+DST_OUT6 ?=	fdd7:e83e:66bc:70:725f:caff:fe21:8d70
+SRT_IN6 ?=	fdd7:e83e:66bc:70::1
+SRT_OUT6 ?=	fdd7:e83e:66bc:71::1
+
+depend: addr.py
+
+# Create python include file containing the addresses.
+addr.py: Makefile
+	rm -f $@ $@.tmp
+	echo 'SRC_IF = "${SRC_IF}"' >>$@.tmp
+	echo 'SRC_MAC = "${SRC_MAC}"' >>$@.tmp
+	echo 'DST_MAC = "${DST_MAC}"' >>$@.tmp
+.for var in SRC_OUT DST_IN DST_OUT SRT_IN SRT_OUT
+	echo '${var}6 = "${${var}6}"' >>$@.tmp
+.endfor
+	mv $@.tmp $@
+
+# Ping all addresses.  This ensures that the ip addresses are configured
+# and all routing tables are set up to allow bidirectional packet flow.
+TARGETS +=	ping6
+run-regress-ping6:
+	@echo '\n======== $@ ========'
+.for ip in SRC_OUT DST_IN DST_OUT
+	@echo Check ping6 ${ip}6:
+	ping6 -n -c 1 ${${ip}6}
+.endfor
+
+.for i in empty final route
+# Send hand-crafted routing header type 0 packets
+TARGETS +=	rh0-${i}
+run-regress-rh0-${i}: addr.py
+	@echo '\n======== $@ ========'
+	@echo Check routing header type 0 ${i}
+	${SUDO} python2.7 rh0_${i}.py
+.endfor
+
+REGRESS_TARGETS =	${TARGETS:S/^/run-regress-/}
+
+CLEANFILES +=		addr.py *.pyc *.log
+
+.include <bsd.regress.mk>
diff --git a/regress/sys/netinet6/rh0/rh0_empty.py b/regress/sys/netinet6/rh0/rh0_empty.py
new file mode 100644
index 00000000000..f757b9b9e67
--- /dev/null
+++ b/regress/sys/netinet6/rh0/rh0_empty.py
@@ -0,0 +1,41 @@
+#!/usr/local/bin/python2.7
+# send a ping6 packet with routing header type 0
+# the address list is empty
+# we expect an echo reply, as there are no more hops
+
+import os
+from addr import *
+from scapy.all import *
+
+pid=os.getpid()
+payload="ABCDEFGHIJKLMNOP"
+packet=IPv6(src=SRC_OUT6, dst=DST_IN6)/\
+    IPv6ExtHdrRouting(addresses=[])/\
+    ICMPv6EchoRequest(id=pid, data=payload)
+eth=Ether(src=SRC_MAC, dst=DST_MAC)/packet
+
+if os.fork() == 0:
+	time.sleep(1)
+	sendp(eth, iface=SRC_IF)
+	os._exit(0)
+
+ans=sniff(iface=SRC_IF, timeout=3, filter=
+    "ip6 and dst "+SRC_OUT6+" and icmp6")
+for a in ans:
+	if a and a.type == scapy.layers.dot11.ETHER_TYPES.IPv6 and \
+	    ipv6nh[a.payload.nh] == 'ICMPv6' and \
+	    icmp6types[a.payload.payload.type] == 'Echo Reply':
+		reply=a.payload.payload
+		id=reply.id
+		print "id=%#x" % (id)
+		if id != pid:
+			print "WRONG ECHO REPLY ID"
+			exit(2)
+		data=reply.data
+		print "payload=%s" % (data)
+		if data != payload:
+			print "WRONG PAYLOAD"
+			exit(2)
+		exit(0)
+print "NO ICMP6 ECHO REPLY"
+exit(1)
diff --git a/regress/sys/netinet6/rh0/rh0_final.py b/regress/sys/netinet6/rh0/rh0_final.py
new file mode 100644
index 00000000000..dc5299333a3
--- /dev/null
+++ b/regress/sys/netinet6/rh0/rh0_final.py
@@ -0,0 +1,41 @@
+#!/usr/local/bin/python2.7
+# send a ping6 packet with routing header type 0
+# the address pointer is at the final destination
+# we expect an echo reply, as there are no more hops
+
+import os
+from addr import *
+from scapy.all import *
+
+pid=os.getpid()
+payload="ABCDEFGHIJKLMNOP"
+packet=IPv6(src=SRC_OUT6, dst=DST_IN6)/\
+    IPv6ExtHdrRouting(addresses=[SRT_IN6, SRT_OUT6], segleft=0)/\
+    ICMPv6EchoRequest(id=pid, data=payload)
+eth=Ether(src=SRC_MAC, dst=DST_MAC)/packet
+
+if os.fork() == 0:
+	time.sleep(1)
+	sendp(eth, iface=SRC_IF)
+	os._exit(0)
+
+ans=sniff(iface=SRC_IF, timeout=3, filter=
+    "ip6 and dst "+SRC_OUT6+" and icmp6")
+for a in ans:
+	if a and a.type == scapy.layers.dot11.ETHER_TYPES.IPv6 and \
+	    ipv6nh[a.payload.nh] == 'ICMPv6' and \
+	    icmp6types[a.payload.payload.type] == 'Echo Reply':
+		reply=a.payload.payload
+		id=reply.id
+		print "id=%#x" % (id)
+		if id != pid:
+			print "WRONG ECHO REPLY ID"
+			exit(2)
+		data=reply.data
+		print "payload=%s" % (data)
+		if data != payload:
+			print "WRONG PAYLOAD"
+			exit(2)
+		exit(0)
+print "NO ICMP6 ECHO REPLY"
+exit(1)
diff --git a/regress/sys/netinet6/rh0/rh0_route.py b/regress/sys/netinet6/rh0/rh0_route.py
new file mode 100644
index 00000000000..ace7af2400b
--- /dev/null
+++ b/regress/sys/netinet6/rh0/rh0_route.py
@@ -0,0 +1,41 @@
+#!/usr/local/bin/python2.7
+# send a ping6 packet with routing header type 0
+# try to source route
+# we expect an ICMP6 error, as we do not support source routing
+
+import os
+from addr import *
+from scapy.all import *
+
+pid=os.getpid()
+payload="ABCDEFGHIJKLMNOP"
+packet=IPv6(src=SRC_OUT6, dst=DST_IN6)/\
+    IPv6ExtHdrRouting(addresses=[SRT_IN6, SRT_OUT6], segleft=2)/\
+    ICMPv6EchoRequest(id=pid, data=payload)
+eth=Ether(src=SRC_MAC, dst=DST_MAC)/packet
+
+if os.fork() == 0:
+	time.sleep(1)
+	sendp(eth, iface=SRC_IF)
+	os._exit(0)
+
+ans=sniff(iface=SRC_IF, timeout=3, filter=
+    "ip6 and dst "+SRC_OUT6+" and icmp6")
+for a in ans:
+	if a and a.type == scapy.layers.dot11.ETHER_TYPES.IPv6 and \
+	    ipv6nh[a.payload.nh] == 'ICMPv6' and \
+	    icmp6types[a.payload.payload.type] == 'Parameter problem':
+		pprob=a.payload.payload
+		code=pprob.code
+		print "code=%#d" % (code)
+		if code != 0:
+			print "WRONG PARAMETER PROBLEM CODE"
+			exit(2)
+		prt=pprob.ptr
+		print "prt=%#d" % (prt)
+		if prt != 42:
+			print "WRONG PARAMETER PROBLEM POINTER"
+			exit(2)
+		exit(0)
+print "NO ICMP6 PARAMETER PROBLEM"
+exit(1)