Re: [PATCH bpf-next 0/3] bpf: add signature

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On Fri, Dec 3, 2021 at 11:36 AM Matteo Croce <mcroce@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Fri, Dec 3, 2021 at 8:22 PM Alexei Starovoitov
> <alexei.starovoitov@xxxxxxxxx> wrote:
> >
> > On Fri, Dec 3, 2021 at 11:18 AM Matteo Croce <mcroce@xxxxxxxxxxxxxxxxxxx> wrote:
> > >
> > > From: Matteo Croce <mcroce@xxxxxxxxxxxxx>
> > >
> > > This series add signature verification for BPF files.
> > > The first patch implements the signature validation in the kernel,
> > > the second patch optionally makes the signature mandatory,
> > > the third adds signature generation to bpftool.
> >
> > Matteo,
> >
> > I think I already mentioned that it's no-go as-is.
> > We've agreed to go with John's suggestion.
>
> Hi,
>
> my previous attempt was loading a whole ELF file and parsing it in kernel.
> In this series I just validate the instructions against a signature,
> as with kernel CO-RE libbpf doesn't need to mangle it.
>
> Which suggestion? I think I missed this one..

This talk and discussion:
https://linuxplumbersconf.org/event/11/contributions/947/



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