def test_tcpdump_pcap(self):
"""Check tcpdump creates pcap output"""
self.ping_all_when_learned()
from_host = self.net.hosts[0]
to_host = self.net.hosts[1]
tcpdump_filter = ('icmp')
pcap_file = os.path.join(self.tmpdir, 'out.pcap')
tcpdump_helper = TcpdumpHelper(
to_host, tcpdump_filter,
[lambda: from_host.cmd('ping -c3 %s' % to_host.IP())],
pcap_out=pcap_file, packets=None)
tcpdump_helper.execute()
self._terminate_with_zero(tcpdump_helper)
result = from_host.cmd('tcpdump -en -r %s' % pcap_file)
self.assertEqual(result.count('ICMP echo reply'), 3, 'three icmp echo replies')
def test_tcpdump_pcap(self):
"""Check tcpdump creates pcap output"""
self.ping_all_when_learned()
from_host = self.net.hosts[0]
to_host = self.net.hosts[1]
tcpdump_filter = ('icmp')
pcap_file = os.path.join(self.tmpdir, 'out.pcap')
tcpdump_helper = TcpdumpHelper(
to_host, tcpdump_filter,
[lambda: from_host.cmd('ping -c3 %s' % to_host.IP())],
pcap_out=pcap_file, packets=None)
tcpdump_helper.execute()
self._terminate_with_zero(tcpdump_helper)
result = from_host.cmd('tcpdump -en -r %s' % pcap_file)
self.assertEqual(result.count('ICMP echo reply'), 3, 'three icmp echo replies')
def test_tcpdump_execute(self):
"""Check tcpdump filter monitors ping using execute"""
self.ping_all_when_learned()
from_host = self.net.hosts[0]
to_host = self.net.hosts[1]
tcpdump_filter = ('icmp')
tcpdump_helper = TcpdumpHelper(to_host, tcpdump_filter, [
lambda: from_host.cmd('ping -c1 %s' % to_host.IP())])
tcpdump_txt = tcpdump_helper.execute()
self.assertTrue(re.search(
'%s: ICMP echo request' % to_host.IP(), tcpdump_txt))
self._terminate_with_zero(tcpdump_helper)
def test_tcpdump_execute(self):
"""Check tcpdump filter monitors ping using execute"""
self.ping_all_when_learned()
from_host = self.net.hosts[0]
to_host = self.net.hosts[1]
tcpdump_filter = ('icmp')
tcpdump_helper = TcpdumpHelper(to_host, tcpdump_filter, [
lambda: from_host.cmd('ping -c1 %s' % to_host.IP())])
tcpdump_txt = tcpdump_helper.execute()
self.assertTrue(re.search(
'%s: ICMP echo request' % to_host.IP(), tcpdump_txt))
self._terminate_with_zero(tcpdump_helper)