Wireshark mailing list archives
[SOLVED] Re: How could Wireshark write / read the pcap file simultaneously?
From: Aaron Lewis <the.warl0ck.1989 () gmail com>
Date: Wed, 2 Apr 2014 23:25:22 +0800
Thanks Guy On Wed, Apr 2, 2014 at 2:01 PM, Guy Harris <guy () alum mit edu> wrote:
On Apr 1, 2014, at 10:52 PM, Aaron Lewis <the.warl0ck.1989 () gmail com> wrote:From what I know, it seems like dumpcap listens for traffic and record everything And the wireshark GUI read and parse that file. (Usually a file located in /tmp) But, 1) how did wireshark know there's a new packet?Dumpcap tells it. There's a pipe between dumpcap and Wireshark/TShark, and every time a batch of packets is written to the file by dumpcap, it also writes a message to the pipe saying that N more packets have been written to the file.2) what happens if /tmp is full?Dumpcap gets a "no space left on disk" error and reports it to Wireshark/TShark over the pipe. (The same thing happens with I/O errors, "you exceeded your disc quota" errors and so on.) ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
-- Best Regards, Aaron Lewis - PGP: 0x13714D33 - http://pgp.mit.edu/ Finger Print: 9F67 391B B770 8FF6 99DC D92D 87F6 2602 1371 4D33 ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: http://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
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- [SOLVED] Re: How could Wireshark write / read the pcap file simultaneously? Aaron Lewis (Apr 02)