[Samba] Recvfile patch issue with windows.

[sp bglr]

Hi Jones,

Thanks.

Unfortunately this patch seems to be not working...Am using samba version
4.1.3.
Is this patch is written for any particular samba version?

Regards,
Bglr



On Fri, May 30, 2014 at 12:11 PM, Jones <jones.kstw at gmail.com> wrote:

> Hello Bglr,
>
> 2014-05-27 19:04 GMT+08:00 sp bglr <spbglr666 at gmail.com>:
>
>  I have a recvfile patch for samba4.1. This patch is working with linux
>> client, But if am trying this with windows client am getting following
>> error in my server.
>>
>> " Unexpected RPC Fragment size! (0)"
>>
>> In client side am getting "Remote procedure call failed and did not
>> execute"
>>
>
> I saw this symptom once on my linux box,
> after applying the attached patch this symptom is resolved,
> this attached is came from Metze's more recvfile optimizations.
>
> Client OS is windows 7,
> can reproduce this symptom with following sort on my linux box,
> 1) samba-4.1.7 and custom kernel patch like
>     https://lkml.org/lkml/2013/7/23/37
> 2) max protocol = SMB2
> 3) min receivefile size = 1
>
> Earlier days wo/ Metze's patch,
> found 2 methods to way around this symptom:
> A) max protocol = NT1
>     Looks like been suffered if with SMB >= 2.0,
>     hence use NT1 instead.
> B) min receivefile size = 8192
>     8192 is going to cover 4280 to avoid recvfile() involved,
>     see comment on samba-4.1.7/source3/libsmb/cli_np_tstream.c
>     ''Windows uses 4280 (the max xmit/recv size negotiated on DCERPC)."
>
> Hmm perhaps could try this attached patch, thanks.
>
> --
> Regards,
> Jones
>
>