tcpdump mailing list archives

Re: [PATCH] tcpdump -s 0 improvement


From: Michael Richardson <mcr () sandelman ca>
Date: Mon, 28 Nov 2011 09:58:40 -0500


"Magnus" == Magnus Gille <mgille () edgewaternetworks com> writes:
    Magnus> I came across an issue with tcpdump where the linux kernel
    Magnus> couldn't allocate memory properly when we ran tcpdump -s 0
    Magnus> on one of our boxes. Tcpdump sets snaplen to 65535 if -s 0
    Magnus> is provided and this became a problem for us, to get around
    Magnus> this I changed the behaviour to query what the MTU actually
    Magnus> is. I made this patch against git current, please give me
    Magnus> comments if you want something changed. I only have access
    Magnus> to a Linux machine so I've not tested it on any other
    Magnus> machine.

I think that this belongs in libpcap, in pcap-linux.c.

-- 
]       He who is tired of Weird Al is tired of life!           |  firewalls  [
]   Michael Richardson, Sandelman Software Works, Ottawa, ON    |net architect[
] mcr () sandelman ottawa on ca http://www.sandelman.ottawa.on.ca/ |device driver[
   Kyoto Plus: watch the video <http://www.youtube.com/watch?v=kzx1ycLXQSE>
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