Check that pf and IPv6 stack handle two ping6 fragments with different

extension headers correctly and produce a echo reply.

1 files changed, 51 insertions, 0 deletions

diff --git a/regress/sys/netinet6/frag6/frag6_ext2long.py b/regress/sys/netinet6/frag6/frag6_ext2long.py
new file mode 100644
index 00000000000..21215100b77
--- /dev/null
+++ b/regress/sys/netinet6/frag6/frag6_ext2long.py
@@ -0,0 +1,51 @@
+#!/usr/local/bin/python2.7
+
+print "ping6 fragments with long extension header in second fragment"
+
+# |FFFF|---------|
+# |HHHHHHHHHHHHHHHHHHHH|DDDD|FFFF|----|
+
+import os
+from addr import *
+from scapy.all import *
+
+pid=os.getpid()
+eid=pid & 0xffff
+payload="ABCDEFGHIJKLMNOP"
+packet=IPv6(src=LOCAL_ADDR6, dst=REMOTE_ADDR6)/ \
+    ICMPv6EchoRequest(id=eid, data=payload)
+frag=[]
+fid=pid & 0xffffffff
+frag.append(IPv6ExtHdrFragment(nh=58, id=fid, m=1)/str(packet)[40:56])
+frag.append(IPv6ExtHdrHopByHop(options=PadN(optdata="\0"*28))/ \
+    IPv6ExtHdrDestOpt()/ \
+    IPv6ExtHdrFragment(nh=58, id=fid, offset=2)/str(packet)[56:64])
+eth=[]
+for f in frag:
+	pkt=IPv6(src=LOCAL_ADDR6, dst=REMOTE_ADDR6)/f
+	eth.append(Ether(src=LOCAL_MAC, dst=REMOTE_MAC)/pkt)
+
+if os.fork() == 0:
+	time.sleep(1)
+	sendp(eth, iface=LOCAL_IF)
+	os._exit(0)
+
+ans=sniff(iface=LOCAL_IF, timeout=3, filter=
+    "ip6 and src "+REMOTE_ADDR6+" and dst "+LOCAL_ADDR6+" and icmp6")
+for a in ans:
+	if a and a.type == ETH_P_IPV6 and \
+	    ipv6nh[a.payload.nh] == 'ICMPv6' and \
+	    icmp6types[a.payload.payload.type] == 'Echo Reply':
+		id=a.payload.payload.id
+		print "id=%#x" % (id)
+		if id != eid:
+			print "WRONG ECHO REPLY ID"
+			exit(2)
+		data=a.payload.payload.data
+		print "payload=%s" % (data)
+		if data == payload:
+			exit(0)
+		print "PAYLOAD!=%s" % (payload)
+		exit(1)
+print "NO ECHO REPLY"
+exit(2)