ACK: [bionic][PATCH] smb3: on reconnect set PreviousSessionId field

[Kamal Mostafa]

Acked-by: Kamal Mostafa <kamal at canonical.com>

On Thu, Aug 09, 2018 at 09:43:12AM -0300, Marcelo Henrique Cerri wrote:
> From: Steve French <stfrench at microsoft.com>
> 
> BugLink: http://bugs.launchpad.net/bugs/1786110
> 
> The server detects reconnect by the (non-zero) value in PreviousSessionId
> of SMB2/SMB3 SessionSetup request, but this behavior regressed due
> to commit 166cea4dc3a4f66f020cfb9286225ecd228ab61d
> ("SMB2: Separate RawNTLMSSP authentication from SMB2_sess_setup")
> 
> CC: Stable <stable at vger.kernel.org>
> CC: Sachin Prabhu <sprabhu at redhat.com>
> Signed-off-by: Steve French <smfrench at gmail.com>
> Reviewed-by: Ronnie Sahlberg <lsahlber at redhat.com>
> (cherry picked from commit b2adf22fdfba85a6701c481faccdbbb3a418ccfc)
> Signed-off-by: Marcelo Henrique Cerri <marcelo.cerri at canonical.com>
> ---
>  fs/cifs/smb2pdu.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
> index 18bf0b9f19ed..f942827ca0cb 100644
> --- a/fs/cifs/smb2pdu.c
> +++ b/fs/cifs/smb2pdu.c
> @@ -1181,6 +1181,7 @@ SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses,
>  	sess_data->ses = ses;
>  	sess_data->buf0_type = CIFS_NO_BUFFER;
>  	sess_data->nls_cp = (struct nls_table *) nls_cp;
> +	sess_data->previous_session = ses->Suid;
>  
>  	while (sess_data->func)
>  		sess_data->func(sess_data);
> -- 
> 2.17.1
> 
> 
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