Hi,
I made a simple pcap parse tool using pcaplib.
For constructing OpenFlow message from pcap files, please refer to the
following tool.
$ cat display_pcap_data.py
#!/usr/bin/env python
import argparse
import six
from ryu.lib import pcaplib
from ryu.lib.packet import packet
from ryu.ofproto import ofproto_parser
from ryu.ofproto import ofproto_protocol
parser = argparse.ArgumentParser(
description='Display packet data from pcap file.')
parser.add_argument('file', metavar='FILE', type=str,
help='an packet data file')
args = parser.parse_args()
frame_count = 0
for ts, buf in pcaplib.Reader(open(args.file, 'rb')):
frame_count += 1
pkt = packet.Packet(buf)
raw_buf = pkt[-1]
if not isinstance(raw_buf, six.binary_type):
print("*** %d, %f\n%s\n" % (frame_count, ts, pkt))
continue
version, msg_type, msg_len, xid = ofproto_parser.header(raw_buf)
try:
msg = ofproto_parser.msg(
ofproto_protocol.ProtocolDesc(version),
version, msg_type, msg_len, xid, raw_buf)
print("*** %d, %f\n%s, %s\n" % (frame_count, ts, pkt[:-1], msg))
except:
print('version=%s, msg_type=%s, msg_len=%s, xid=%s' %
(version, msg_type, msg_len, xid))
But please note this tool can NOT parse "Controller-to-Switch" ONE-WAY messages
(e.g. OFPT_FEATURES_REQUEST message), because Ryu does not support to parse it.
Thanks,
Iwase
On 2016年05月31日 03:14, Truong Huu Trung wrote:
> Hi team,
>
> I want to construct OF message from a pcap file.
> Ryu has support for writing and reading pcap.
> But, what api can I use to create an OF message from pcap?
> Please help!
>
> Thanks,
> Trung
> --
> Best regards,
> Trung Truong
>
>
> ------------------------------------------------------------------------------
> What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
> patterns at an interface-level. Reveals which users, apps, and protocols are
> consuming the most bandwidth. Provides multi-vendor support for NetFlow,
> J-Flow, sFlow and other flows. Make informed decisions using capacity
> planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e
>
>
>
> _______________________________________________
> Ryu-devel mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>
------------------------------------------------------------------------------
What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic
patterns at an interface-level. Reveals which users, apps, and protocols are
consuming the most bandwidth. Provides multi-vendor support for NetFlow,
J-Flow, sFlow and other flows. Make informed decisions using capacity
planning reports. https://ad.doubleclick.net/ddm/clk/305295220;132659582;e
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