On Tue, Sep 8, 2020 at 6:23 PM Xie He wrote:
>
> On Tue, Sep 8, 2020 at 4:53 AM Willem de Bruijn
> wrote:
> >
> > On Tue, Sep 8, 2020 at 1:04 PM Xie He wrote:
> > >
> > > I was recently looking at some drivers, and I felt that if af_packet.c
> > > could help me filter out the invalid RAW frames,
On Tue, Sep 8, 2020 at 4:53 AM Willem de Bruijn
wrote:
>
> On Tue, Sep 8, 2020 at 1:04 PM Xie He wrote:
> >
> > I was recently looking at some drivers, and I felt that if af_packet.c
> > could help me filter out the invalid RAW frames, I didn't need to
> > check the validity of the frames myself
On Tue, Sep 8, 2020 at 1:04 PM Xie He wrote:
>
> On Tue, Sep 8, 2020 at 1:41 AM Willem de Bruijn
> wrote:
> >
> > The intent is to bypass such validation to be able to test device
> > drivers. Note that removing that may cause someone's test to start
> > failing.
> >
> > > So there's no point in
On Tue, Sep 8, 2020 at 1:41 AM Willem de Bruijn
wrote:
>
> The intent is to bypass such validation to be able to test device
> drivers. Note that removing that may cause someone's test to start
> failing.
>
> > So there's no point in
> > keeping the ability to test this, either.
>
> I don't disag
On Mon, Sep 7, 2020 at 11:17 PM Xie He wrote:
>
> On Mon, Sep 7, 2020 at 2:06 AM Willem de Bruijn
> wrote:
> >
> > The CAP_SYS_RAWIO exception indeed was requested to be able to
> > purposely test devices against bad inputs. The gmane link
> > unfortunately no longer works, but this was the discu
On Mon, Sep 7, 2020 at 2:06 AM Willem de Bruijn
wrote:
>
> The CAP_SYS_RAWIO exception indeed was requested to be able to
> purposely test devices against bad inputs. The gmane link
> unfortunately no longer works, but this was the discussion thread:
> https://www.mail-archive.com/netdev@vger.kern
On Sun, Sep 6, 2020 at 1:21 AM Xie He wrote:
>
> On Sat, Sep 5, 2020 at 3:24 PM Xie He wrote:
> >
> > Hi Willem,
> >
> > I have a question about the function dev_validate_header used in
> > af_packet.c. Can you help me? Thanks!
> >
> > I see when the length of the data is smaller than hard_header
On Sat, Sep 5, 2020 at 3:24 PM Xie He wrote:
>
> Hi Willem,
>
> I have a question about the function dev_validate_header used in
> af_packet.c. Can you help me? Thanks!
>
> I see when the length of the data is smaller than hard_header_len, and
> when the user is "capable" enough, the function will
Hi Willem,
I have a question about the function dev_validate_header used in
af_packet.c. Can you help me? Thanks!
I see when the length of the data is smaller than hard_header_len, and
when the user is "capable" enough, the function will accept it and pad
it with 0s, without validating the header
