В Sat, 26 Jul 2014 07:55:03 +0400 Andrey Borzenkov <arvidj...@gmail.com> пишет:
> В Fri, 25 Jul 2014 23:38:34 +0200 > Vladimir 'φ-coder/phcoder' Serbinenko <phco...@gmail.com> пишет: > > > On 25.07.2014 17:53, Andrey Borzenkov wrote: > > > Some PXE stacks do not support P_UNKNOWN in UNDI TRANSMIT; nothing is > > > sent at all. So strip Ethernet header for known frame types and let PXE > > > stack add it. > > > > > If I'm reading this patch correctly it discards several fields of the > > packet and i.a. kills vlan fields. > > No, it does not. It discards Ethernet headers only when packet type is > IP or ARP. VLAN packet will have different type and will be passed > through as happens currently. > Ping? It fixes real problem in the wild and this exact approach is used by other PXE stacks, so it is not as it is completely untested. If this is not acceptable - any idea how this problem can be fixed short of maintaining explicit black lists? > > > Such low in the stack it should > > replace the header only in the case of perfect match. It will be perfect > > match in 99% of configs but we shouldn0t break configs on unaffected > > machines.
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