Date: Mon, 28 Jan 2013 09:09:27 GMT From: Dmitry Dvoinikov <dmitry@targeted.org> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/175645: tcpdump incorrectly decodes pflog'ged UDP packet as ATALK Message-ID: <201301280909.r0S99RVD002544@red.freebsd.org> Resent-Message-ID: <201301280910.r0S9A0A0012196@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 175645 >Category: misc >Synopsis: tcpdump incorrectly decodes pflog'ged UDP packet as ATALK >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Jan 28 09:10:00 UTC 2013 >Closed-Date: >Last-Modified: >Originator: Dmitry Dvoinikov >Release: 8.3 >Organization: www.infosysco.ru >Environment: FreeBSD foo 8.3-RELEASE-p5 FreeBSD 8.3-RELEASE-p5 #1: Wed Dec 12 23:29:24 YEKT 2012 admin@foo:/opt/obj/opt/src/sys/FOO i386 >Description: Some UDP packet, saved by pflog, is decoded incorrectly as ATALK. tcpdump output: # tcpdump -r packet.pcap reading from file packet.pcap, link-type PFLOG (OpenBSD pflog file) 11:22:11.296532 IP 115.61.0.254 > 143.12.228.91: at-#100 5 whereas the (presumably correct) wireshark output: Frame 1: 110 bytes on wire (880 bits), 110 bytes captured (880 bits) PF Log IPv4 pass on ifc by rule 0 Internet Protocol Version 4, Src: 172.30.0.11 (172.30.0.11), Dst: 193.120.212.22 (193.120.212.22) User Datagram Protocol, Src Port: 55573 (55573), Dst Port: 16605 (16605) Data (18 bytes) >How-To-Repeat: openssl base64 -d > packet.pcap << EOF 1MOyoQIABAAAAAAAAAAAAHQAAAB1AAAAAwsGUVSGBABuAAAAbgAAAD0CAABpZmMA AAAAAAAAAAAAAAAAYW5jaG9yX25hbWUAAAAAAAAAABwAAAAC/////6CGAQAAAAAA ggUAAAEAAABFAAAuAABAAEAR+QasHgALwXjUFtkVQN0AGrhGUxUCmI8Mcz3kAFv+ ZGyAi27Z EOF tcpdump -r packet.pcap >Fix: >Release-Note: >Audit-Trail: >Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201301280909.r0S99RVD002544>