kern/166411: simply enabling pf makes udpxy not to work
Stefan BALU
balustefan at gmail.com
Mon Mar 26 12:50:01 UTC 2012
>Number: 166411
>Category: kern
>Synopsis: simply enabling pf makes udpxy not to work
>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 Mar 26 12:50:01 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator: Stefan BALU
>Release: FreeBSD 9.0-RELEASE
>Organization:
-
>Environment:
FreeBSD **.*****.** 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Sun Mar 25 02:27:31 EET 2012 root at fw.llldental.ro:/usr/obj/usr/src/sys/FW amd64
>Description:
I have an issue with pf and udpxy. I have a gateway machine with 3 ethernet cards:
re0 -> wan
re1 -> lan
re2 -> tv
The tv interface connects to my isp's IPTV network where multicast udp and igmp packets come and go.
In order for my computers and tvs to get the IPTV stream, i use an HTTP to UDP proxy (udpxy). This little application takes HTTP requests in the form of: http://udpxy-server:port/udp/CHANNEL_IP:CHANNEL_PORT from lan clients and registers to these multicast streams on the tv interface.
However, the problem appears when i simply enable pf. With no rule in pf.conf, running /etc/rc.d/pf start simply makes udpxy to stop working throwing:
read_buf: read: Resource temporary unavailable
After spending lots of hours figuring this out, i disabled pf and everything suddenly worked.
Using ipfilter, the problem is totally gone.
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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