Hi Italo, ToHost is available in userlevel Click, see http://read.cs.ucla.edu/click/elements/tohost.u
On Sat, Aug 21, 2010 at 3:51 PM, Italo Valcy <[email protected]> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi guys, > > Em 20-08-2010 04:51, Beyers Cronje escreveu: > > > > By default in userlevel using FromDevice the kernel will also process the > > packets. However there is a workaround using the following FromDevice > config > > parameter: > > > > *SNIFFER*Boolean. Specifies whether > > FromDevice<http://read.cs.ucla.edu/click/elements/fromdevice> should > > run in sniffer mode. In non-sniffer mode, > > FromDevice<http://read.cs.ucla.edu/click/elements/fromdevice> > > installs KernelFilter > > <http://read.cs.ucla.edu/click/elements/kernelfilter> filtering > > rules to block the kernel from handling any packets arriving on device > > DEVNAME. Default is true (sniffer mode). > > > > So setting SNIFFER to false will block the kernel from handling packets > as > > well. > > Just another question: this workaround seens to use iptables to block > kernel from handling the packages, but do I have some way to give back > the package to the ordinary Linux protocol stack? In other words, is > there any workaround to have the same behavior of ToHost in linuxmode? > > I'm asking these questions because I'd like to be able to use > test-ping.click example [1] in userlevel. Can I do this or should I > start thinking about to use linuxmode instead of userlevel? > > Thanks for any help! > > > Kind Regards, italo. > > 1 - test-ping.click example > - ---------------8<---------------------- > // test-ping.click > > // This kernel configuration tests the FromDevice and ToDevice elements > // by sending pings to host 131.179.80.139 (read.cs.ucla.edu) via 'eth0'. > // Change the 'define' statement to use another device or address, or run > // e.g. "click-install test-ping.click DEV=eth1" to change a parameter > at the > // command line. > // > // You should see, in 'dmesg' or /var/log/messages, a sequence of "icmp > echo" > // printouts intermixed with "ping :: ICMPPingSource" receive reports. > Also > // check out the contents of /click/ping/summary. > > define($DEV eth0, $DADDR 131.179.80.139, $GW 131.179.33.1) > > FromDevice($DEV) > -> c :: Classifier(12/0800, 12/0806 20/0002, -) > -> CheckIPHeader(14) > -> ip :: IPClassifier(icmp echo-reply, -) > -> ping :: ICMPPingSource($DEV, $DADDR) > -> SetIPAddress($GW) > -> arpq :: ARPQuerier($DEV) > -> IPPrint > -> q :: Queue > -> { input -> t :: PullTee -> output; t [1] -> ToHostSniffers($DEV) > } > -> ToDevice($DEV); > arpq[1] -> q; > c[1] -> t :: Tee > -> [1] arpq; > t[1] -> host :: ToHost; > c[2] -> host; > ip[1] -> host; > - ---------------8<---------------------- > > > - -- > Saudações, > > Italo Valcy :: http://wiki.dcc.ufba.br/~ItaloValcy > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAkxv2dkACgkQfidLqjN6RNHrcwCbBnVp09jRZBVRtMaE+kUdTG95 > KioAnjpq/QONTrCFZepdiOIB9jWBLgiw > =1IpQ > -----END PGP SIGNATURE----- > > _______________________________________________ > click mailing list > [email protected] > https://amsterdam.lcs.mit.edu/mailman/listinfo/click > _______________________________________________ click mailing list [email protected] https://amsterdam.lcs.mit.edu/mailman/listinfo/click
