This comment is outdated and no longer reflects the actual implementation
of af_packet.c.
Reasons for the new comment:
1.
In this file, the function packet_snd first reserves a headroom of
length (dev->hard_header_len + dev->needed_headroom).
Then if the socket is a SOCK_DGRAM socket, it calls d
On Sun, Sep 6, 2020 at 5:18 AM Xie He wrote:
>
> This comment is outdated and no longer reflects the actual implementation
> of af_packet.c.
If it was previously true, can you point to a commit that changes the behavior?
>
> Reasons for the new comment:
>
> 1.
>
> In this file, the function pack
Thank you for your comment!
On Mon, Sep 7, 2020 at 2:41 AM Willem de Bruijn
wrote:
>
> On Sun, Sep 6, 2020 at 5:18 AM Xie He wrote:
> >
> > This comment is outdated and no longer reflects the actual implementation
> > of af_packet.c.
>
> If it was previously true, can you point to a commit that
On Tue, Sep 8, 2020 at 2:07 AM Xie He wrote:
>
> Thank you for your comment!
>
> On Mon, Sep 7, 2020 at 2:41 AM Willem de Bruijn
> wrote:
> >
> > On Sun, Sep 6, 2020 at 5:18 AM Xie He wrote:
> > >
> > > This comment is outdated and no longer reflects the actual implementation
> > > of af_packet.
On Tue, Sep 8, 2020 at 1:56 AM Willem de Bruijn
wrote:
>
> > > > /*
> > > > Assumptions:
> > > > - - if device has no dev->hard_header routine, it adds and removes ll
> > > > header
> > > > - inside itself. In this case ll header is invisible outside of
> > > > device,
> > > > - b
> > > > More about the older comment, but if reusing: it's not entirely clear
> > > > to me what "outside of the device" means. The upper layers that
> > > > receive data from the device and send data to it, including
> > > > packet_snd, I suppose? Not the lower layers, clearly. Maybe that can
> >
