/* Unix SMB/CIFS implementation. SMB2 client notify calls Copyright (C) Stefan Metzmacher 2006 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "includes.h" #include "libcli/raw/libcliraw.h" #include "libcli/smb2/smb2.h" #include "libcli/smb2/smb2_calls.h" /* send a cancel request */ NTSTATUS smb2_cancel(struct smb2_request *r) { NTSTATUS status; struct smb2_request *c; uint32_t old_timeout; uint64_t old_seqnum; /* * if we don't get a pending id yet, we just * mark the request for pending, so that we directly * send the cancel after getting the pending id */ if (!r->cancel.can_cancel) { r->cancel.do_cancel++; return NT_STATUS_OK; } /* we don't want a seqmun for a SMB2 Cancel */ old_seqnum = r->transport->seqnum; c = smb2_request_init(r->transport, SMB2_OP_CANCEL, 0x04, false, 0); r->transport->seqnum = old_seqnum; NT_STATUS_HAVE_NO_MEMORY(c); c->seqnum = 0; SIVAL(c->out.hdr, SMB2_HDR_FLAGS, 0x00000002); SSVAL(c->out.hdr, SMB2_HDR_CREDIT, 0x0030); SBVAL(c->out.hdr, SMB2_HDR_ASYNC_ID, r->cancel.async_id); SBVAL(c->out.hdr, SMB2_HDR_MESSAGE_ID, c->seqnum); if (r->session) { SBVAL(c->out.hdr, SMB2_HDR_SESSION_ID, r->session->uid); } SSVAL(c->out.body, 0x02, 0); old_timeout = c->transport->options.request_timeout; c->transport->options.request_timeout = 0; smb2_transport_send(c); c->transport->options.request_timeout = old_timeout; if (c->state == SMB2_REQUEST_ERROR) { status = c->status; } else { status = NT_STATUS_OK; } talloc_free(c); return status; }