Add regression tests for the ARP implementation in the kernel. Send

multiple ARP packets to a remote machine with Scapy.  Check ARP 
replies, table entries and log messages.  All log messages in 
in_arpinput() are generated.  Proxy ARP is also tested.

1 files changed, 50 insertions, 0 deletions

diff --git a/regress/sys/netinet/arp/arp_request.py b/regress/sys/netinet/arp/arp_request.py
new file mode 100644
index 00000000000..d974c6330c2
--- /dev/null
+++ b/regress/sys/netinet/arp/arp_request.py
@@ -0,0 +1,50 @@
+#!/usr/local/bin/python2.7
+# send Address Resolution Protocol Request
+# expect Address Resolution Protocol response and check all fields
+# RFC 826  An Ethernet Address Resolution Protocol
+# Packet Generation
+
+import os
+from addr import *
+from scapy.all import *
+
+arp=ARP(op='who-has', hwsrc=LOCAL_MAC, psrc=LOCAL_ADDR,
+    hwdst="ff:ff:ff:ff:ff:ff", pdst=REMOTE_ADDR)
+eth=Ether(src=LOCAL_MAC, dst="ff:ff:ff:ff:ff:ff")/arp
+
+e=srp1(eth, iface=LOCAL_IF, timeout=2)
+
+if e and e.type == ETH_P_ARP:
+	a=e.payload
+	if a.hwtype != ARPHDR_ETHER:
+		print "HWTYPE=%#0.4x != ARPHDR_ETHER" % (a.hwtype)
+		exit(1)
+	if a.ptype != ETH_P_IP:
+		print "PTYPE=%#0.4x != ETH_P_IP" % (a.ptype)
+		exit(1)
+	if a.hwlen != 6:
+		print "HWLEN=%d != 6" % (a.hwlen)
+		exit(1)
+	if a.plen != 4:
+		print "PLEN=%d != 4" % (a.plen)
+		exit(1)
+	if a.op != 2:
+		print "OP=%s != is-at" % (a.op)
+		exit(1)
+	if a.hwsrc != REMOTE_MAC:
+		print "HWLOCAL=%s != REMOTE_MAC" % (a.hwsrc)
+		exit(1)
+	if a.psrc != REMOTE_ADDR:
+		print "PLOCAL=%s != REMOTE_ADDR" % (a.psrc)
+		exit(1)
+	if a.hwdst != LOCAL_MAC:
+		print "HWREMOTE=%s != LOCAL_MAC" % (a.hwdst)
+		exit(1)
+	if a.pdst != LOCAL_ADDR:
+		print "PREMOTE=%s != LOCAL_ADDR" % (a.pdst)
+		exit(1)
+	print "arp reply"
+	exit(0)
+
+print "NO ARP REPLY"
+exit(2)