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-rw-r--r--source4/libcli/smb2/cancel.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/source4/libcli/smb2/cancel.c b/source4/libcli/smb2/cancel.c
new file mode 100644
index 0000000000..bf48af7b00
--- /dev/null
+++ b/source4/libcli/smb2/cancel.c
@@ -0,0 +1,78 @@
+/*
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#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_UNKNOWN1, 0x0030);
+ SIVAL(c->out.hdr, SMB2_HDR_PID, r->cancel.pending_id);
+ SBVAL(c->out.hdr, SMB2_HDR_SEQNUM, c->seqnum);
+ if (r->session) {
+ SBVAL(c->out.hdr, SMB2_HDR_UID, r->session->uid);
+ }
+
+ SSVAL(c->out.body, 0x02, 0);
+
+ old_timeout = c->transport->options.timeout;
+ c->transport->options.timeout = 0;
+ smb2_transport_send(c);
+ c->transport->options.timeout = old_timeout;
+
+ if (c->state == SMB2_REQUEST_ERROR) {
+ status = c->status;
+ } else {
+ status = NT_STATUS_OK;
+ }
+
+ talloc_free(c);
+ return status;
+}