def __init__(self, program_string):
"""
Create a filter using the BPF command syntax. To learn more,
consult 'man pcap-filter'.
:param program_string: The textual definition of the filter. Examples:
'vlan 1000'
'vlan 1000 and ip src host 10.10.10.10'
"""
self._program_string = program_string
self._bpf = pcapy.BPFProgram(program_string)
def testBPFFilter(self):
"""
#3 test offline BPFFilter
"""
r = pcapy.open_offline(TestPcapy._96PINGS)
bpf = pcapy.BPFProgram("ip dst host 192.168.1.1")
hdr, pkt = r.next()
while hdr is not None:
f = bpf.filter(pkt)
self.assertNotEqual(f, 0)
hdr, pkt = r.next()