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From: Guy Harris <guy@alum.mit.edu>
To: Developer support list for Wireshark <wireshark-dev@wireshark.org>
Cc: Pete Zaitcev <zaitcev@redhat.com>,
	linux-usb@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [Wireshark-dev] usbmon: size of different fields?
Date: Tue, 9 Nov 2010 13:23:28 -0800	[thread overview]
Message-ID: <E6FD75ED-7E13-47DC-B9F9-6C8C09C3C4AC@alum.mit.edu> (raw)
In-Reply-To: <4CD9A96D.1010306@freemail.hu>


On Nov 9, 2010, at 12:05 PM, Németh Márton wrote:

> OK, that's clear, the byte order of the API structure fields are in "host endian"
> order. The API structures are already saved by Wireshark into file for quite some
> time.

...and tcpdump.  Support for capturing on USB on Linux has been in libpcap since at least libpcap 1.0.

When reading a pcap file, or a pcap-ng file section, written on a machine with a byte order opposite from that of the machine reading the file, libpcap and Wireshark's Wiretap library byte-swap most host-byte-order fields into the byte order of the host reading the file; the exceptions are the iso_rec structure and the isochronous descriptors.

  reply	other threads:[~2010-11-09 22:00 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-09  6:40 usbmon: size of different fields? Németh Márton
2010-11-09 14:50 ` Pete Zaitcev
2010-11-09 20:05   ` Németh Márton
2010-11-09 21:23     ` Guy Harris [this message]
2010-11-10 15:21       ` Pete Zaitcev
2010-11-10 17:36         ` Guy Harris
2010-11-13 22:15     ` [PATCH, RFC] usbmon: correct computing of the ISO packets with mmap Németh Márton
2010-11-14 19:40       ` Pete Zaitcev
2010-11-14 20:24         ` Németh Márton
2010-11-14 21:08           ` Pete Zaitcev
2010-11-14 23:25           ` Pete Zaitcev
2010-11-15  3:01             ` Alan Stern
2010-11-15  3:42               ` Pete Zaitcev
2010-11-15 15:01                 ` Alan Stern
2010-11-15  5:48             ` Németh Márton
2010-11-15  6:12               ` Pete Zaitcev
2010-11-15 15:06                 ` Alan Stern
2010-11-16  6:00               ` Németh Márton
2010-11-09 15:05 ` usbmon: size of different fields? Alan Stern

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