subject:"\[tcpdump\-workers\] Snaplen \(git\-latest\) not working properly on linux"

Re: [tcpdump-workers] Snaplen (git-latest) not working properly on linux

2012-01-15 Thread Guy Harris

On Jan 15, 2012, at 6:44 PM, Gianluca Varenni wrote: > Hi all. > > It looks like there is a bug in handling a snaplen of 1500 on linux (with > mmap on). If I set a snaplen of 1500 and receive packets > 1500 (e.g. 1514), > libpcap returns only 1498 as caplen, and not 1500. > > Libpcap latest o

[tcpdump-workers] Snaplen (git-latest) not working properly on linux

2012-01-15 Thread Gianluca Varenni

Hi all. It looks like there is a bug in handling a snaplen of 1500 on linux (with mmap on). If I set a snaplen of 1500 and receive packets > 1500 (e.g. 1514), libpcap returns only 1498 as caplen, and not 1500. Libpcap latest on git (1.3.0-PRE-GIT_2012_01_15) Linux RHEL6, kernel 2.6.32-131.21.1.