Re: [tcpdump-workers] [libpcap] OR'ing vlans impossible in tcpdump filter (#158)

2013-10-11 Thread Michael Richardson
Please take this discussion to the tcpdump-workers list. shohamp writes: > This commit by @yuguy explains this issue very well. yacc parsers the > bpf from left to right without saving the state, and doesn't provide a > tree of some kind, which would allow an easy solution. @yuguy say

[tcpdump-workers] Can libpcap affect speed of packets sending/recieving?

2013-10-11 Thread Sergey Gomanyuk
Hi, I wonder if libpcap can somehow affect speed of processing packets by TCP/IP stack? I noticed that such behavior can happen in particular Linux environments with high traffic load - without capturing all is Ok, with capturing (especially on "any" interface) it seems that packets stuck in

Re: [tcpdump-workers] [tcpdump] IEEE float decoded incorrectly (#333)

2013-10-11 Thread Denis Ovsienko
01.10.2013, 06:11, "Michael Richardson" : > from > https://github.com/the-tcpdump-group/tcpdump/issues/333 > > details an issue where differences in arch and compiler result in different > extractions of floating point objects in LMP packets. Guy discovers it has > something to do with assumptions