2016-11-08 8:33 GMT-08:00 Aurelien Aptel <aaptel@xxxxxxxx>:
> since we cannot access the ipc tcon object, force the use of the ipc tid
> when crafting DFS resolving ioctl.
>
> Signed-off-by: Aurelien Aptel <aaptel@xxxxxxxx>
> ---
> fs/cifs/smb2pdu.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
> index 5ca5ea46..6d5b8db 100644
> --- a/fs/cifs/smb2pdu.c
> +++ b/fs/cifs/smb2pdu.c
> @@ -1645,6 +1645,10 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
> if (rc)
> return rc;
>
> + /* XXX: how can we access the tcon of the IPC of the host? */
> + if (opcode == FSCTL_DFS_GET_REFERRALS) {
> + req->hdr.TreeId = ses->ipc_tid;
> + }
It seems like spec (3.2.4.20.3) says that we can use any existing ses
and tcon for the current user. See my comment to the previous patch.
> req->CtlCode = cpu_to_le32(opcode);
> req->PersistentFileId = persistent_fid;
> req->VolatileFileId = volatile_fid;
> --
> 2.1.4
>
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--
Best regards,
Pavel Shilovsky
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