tcpdump mailing list archives
Re: [Patch/Workaround?] pcap-usb-linux.c
From: Jean-Louis <jelot-tcpdump () jelot it>
Date: Thu, 30 Oct 2008 19:18:48 +0100
Jean-Louis ha scritto:
Tyson Key ha scritto:Hi Jean-Louis, just applied the patches and it compiles and installs successfully.Still looks like certain packets are being truncated (mostly URB_ISOCHRONOUSones from what I can tell). Thanks.now also the mmap mode have snaplen limitation... try to capture traffic with -s 0 tcpdump option. i.e. tcpdump -i2 -w file.pcap -s 0 if you would make default maximum, look #DEFINE of DEFAULT_SNAPLEN in tcpdump/interface.h and tcpdump/netdissect.h I have found this with find -name "*.[ch]" | xargs grep "DEFAULT_SNAPLEN"
only one question: what you are using for dissect packets?If response is whireshark, in the dissector for usb raw traffic ther'is some workaround and misunderstood of usb specification... I don't know if "truncate packet" say in whireshark is attendible. If I have free time, this week, I would try to fix this dissector.
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Current thread:
- Re: [Patch 1-4] pcap-usb-linux.c, (continued)
- Re: [Patch 1-4] pcap-usb-linux.c Jean-Louis (Oct 29)
- Re: [Patch 2-4] pcap-usb-linux.c Jean-Louis (Oct 29)
- Re: [Patch 3-4] pcap-usb-linux.c Jean-Louis (Oct 29)
- Re: [Patch 4-4] pcap-usb-linux.c Jean-Louis (Oct 29)
- Re: [BUG] pcap-usb-linux.c Jean-Louis (Oct 29)
- Re: [Patch/Workaround?] pcap-usb-linux.c Jean-Louis (Oct 30)
- Re: [Patch/Workaround?] pcap-usb-linux.c Tyson Key (Oct 30)
- Re: [Patch/Workaround?] pcap-usb-linux.c Jean-Louis (Oct 30)
- Re: [Patch/Workaround?] pcap-usb-linux.c Tyson Key (Oct 30)
- Re: [Patch/Workaround?] pcap-usb-linux.c Jean-Louis (Oct 30)
- Re: [Patch/Workaround?] pcap-usb-linux.c Jean-Louis (Oct 30)
- Re: [Patch/Workaround?] pcap-usb-linux.c Tyson Key (Oct 30)
- Re: [Patch/Workaround?] pcap-usb-linux.c Guy Harris (Dec 23)
- Re: [BUG] pcap-usb-linux.c Guy Harris (Nov 24)
- Re: [BUG] pcap-usb-linux.c Tyson Key (Nov 24)
- Re: [BUG] pcap-usb-linux.c Guy Harris (Nov 25)
- Re: [BUG] pcap-usb-linux.c Jean-Louis (Nov 27)
- Re: [BUG] pcap-usb-linux.c Jean-Louis (Nov 27)
- Re: [BUG] pcap-usb-linux.c Guy Harris (Dec 23)
- Re: [BUG] pcap-usb-linux.c Guy Harris (Dec 23)
- Re: [Patch 4-4] pcap-usb-linux.c Guy Harris (Nov 24)