Re: [PATCH 2/3] cifs: fix computation for MAX_SMB2_HDR_SIZE

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I just resent it and the other patch.

I have dropped the initial 4 bytes from the constant.
Yeah, it maybe should go to stable.


On Tue, Jan 29, 2019 at 12:24 PM Pavel Shilovsky <piastryyy@xxxxxxxxx> wrote:
>
> Don't you think the original version of the patch should be marked for stable?
> --
> Best regards,
> Pavel Shilovsky
>
> пт, 25 янв. 2019 г. в 18:21, ronnie sahlberg <ronniesahlberg@xxxxxxxxx>:
> >
> > On Sat, Jan 26, 2019 at 12:11 PM Pavel Shilovsky <piastryyy@xxxxxxxxx> wrote:
> > >
> > > чт, 24 янв. 2019 г. в 17:03, Ronnie Sahlberg <lsahlber@xxxxxxxxxx>:
> > > >
> > > > The size of the fixed part of the create response is 88 bytes not 56.
> > > >
> > > > Signed-off-by: Ronnie Sahlberg <lsahlber@xxxxxxxxxx>
> > > > ---
> > > >  fs/cifs/smb2pdu.h | 4 ++--
> > > >  1 file changed, 2 insertions(+), 2 deletions(-)
> > > >
> > > > diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
> > > > index 05dea6750c33..d8944846e6ae 100644
> > > > --- a/fs/cifs/smb2pdu.h
> > > > +++ b/fs/cifs/smb2pdu.h
> > > > @@ -84,8 +84,8 @@
> > > >
> > > >  #define NUMBER_OF_SMB2_COMMANDS        0x0013
> > > >
> > > > -/* 4 len + 52 transform hdr + 64 hdr + 56 create rsp */
> > > > -#define MAX_SMB2_HDR_SIZE 0x00b0
> > > > +/* 4 len + 52 transform hdr + 64 hdr + 88 create rsp */
> > > > +#define MAX_SMB2_HDR_SIZE 208
> > >
> > > Should we still account for RFC length of 4 bytes in the header?
> >
> > Good point. No we shouldn't.
> >
> > Thinking about it, in the other patch where I set the maximum create
> > response size to
> > 822 bytes (64 bytes header + 88 bytes create response + 520 bytes name
> > + 150 bytes context)
> > Should actually be 824   since we need to take into account that there
> > would possibly be two extra bytes of padding for a compounded create.
> >
> > I can send a follow up patch to fix both these.
> >
> > >
> > > --
> > > Best regards,
> > > Pavel Shilovsky




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