Dear Fabio, I assume Lucid is 10.04, then it is reproducable. Gil On Sat, Jul 31, 2010 at 2:47 PM, Fabio Marconi <marconifa...@hotmail.it>wrote:
> Thank you for taking the time to report this bug and helping to make Ubuntu > better. > Is this bug reproducible with the latest Lucid packages ? > Tanks in advance. > > ** Changed in: ubuntu > Status: New => Incomplete > > -- > SOCK_RAW does not receive broadcast (with VLAN unless PROMISC) > https://bugs.launchpad.net/bugs/383525 > You received this bug notification because you are a direct subscriber > of the bug. > > Status in Ubuntu: Incomplete > > Bug description: > Dear Linux Experts, > > My application is using PF_PACKET and SOCK_RAW in order to receive all > Ethernet packets for the machine-unicast MAC plus all broadcast packets > (like ARP broadcast). > > That worked OK with kernel 2.6.20 (Ubuntu 7.04 with or without VLAN). > > Now with kernel 2.6.28 (Ubuntu 9.04) it works OK only without-VLAN, but > with VLAN the application receive only packets for the machine-unicast MAC, > but no broadcast (like ARP broadcast) packets, only if I set the socket to > PROMISC mode, I start receive also broadcast packets. > > To me it seems a bug, as SOCK_RAW should pass all ‘received’ packet > (including broadcast) to the application, without the need for PROMISC > (which cause my machine to receive other machine unicast packets, and > filter those by software)! > > The original application: > > sock=socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL)); > memset((char *) &sockad, 0, sizeof(sockad)); > sockad.sll_family = PF_PACKET; > sockad.sll_protocol = htons(ETH_P_ALL); > sockad.sll_ifindex = ethreq.ifr_ifindex;//the relevant unit number > > > > Now the workaround is to set (unwanted) PROMISC mode: > > ioctl(sock,SIOCGIFFLAGS,ðreq); > ethreq.ifr_flags|=IFF_PROMISC; // why does 9.04 need this (+0x100) at least > once?! > ioctl(sock,SIOCSIFFLAGS,ðreq); > > > Many thanks in advance, > Gil Beniamini > gil.beniam...@gmail.com > > ProblemType: Bug > Architecture: i386 > DistroRelease: Ubuntu 9.04 > ExecutablePath: /usr/bin/yelp > Package: yelp 2.25.1-0ubuntu5 > ProcEnviron: > LANG=en_US.UTF-8 > SHELL=/bin/bash > SourcePackage: yelp > Uname: Linux 2.6.28-11-generic i686 > > To unsubscribe from this bug, go to: > https://bugs.launchpad.net/ubuntu/+bug/383525/+subscribe > -- SOCK_RAW does not receive broadcast (with VLAN unless PROMISC) https://bugs.launchpad.net/bugs/383525 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
