[Winpcap-bugs] bpf_validate() needs to do more checks
guy at alum.mit.edu
Sat Dec 3 00:06:09 GMT 2005
On Dec 2, 2005, at 3:51 PM, Loris Degioanni wrote:
> Guy Harris wrote:
>> BTW, what do those new instructions do? At some point I might
>> want to see whether it's OK to pick up some additional
>> instructions from the BSD/OS BPF interpreter - it has some
>> instructions to scan IPv6 headers to find the last header in the
>> header chain, which would let us do a better job of handling the
>> IPv6 "protochain" operator
> Do they have support for this operator in the compiler too?
They might, but all I've seen is their bpf_filter() implementation.
It shouldn't be that hard to add support for it in the compiler.
I think they also cleaned up some other things, e.g. adding an
indexed version of some instructions.
More information about the Winpcap-bugs