smb2_ioctl: split ioctl handler code on device type

Add per device type ioctl handler source files for FSCTL_DFS,
FSCTL_FILESYSTEM, FSCTL_NAMED_PIPE and FSCTL_NETWORK_FILESYSTEM.

Reviewed by: Jeremy Allison <jra@samba.org>

1 files changed, 173 insertions, 0 deletions

diff --git a/source3/smbd/smb2_ioctl_network_fs.c b/source3/smbd/smb2_ioctl_network_fs.c
new file mode 100644
index 0000000000..bfc39e3bd5
--- /dev/null
+++ b/source3/smbd/smb2_ioctl_network_fs.c
@@ -0,0 +1,173 @@
+/*
+   Unix SMB/CIFS implementation.
+   Core SMB2 server
+
+   Copyright (C) Stefan Metzmacher 2009
+
+   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 "smbd/smbd.h"
+#include "smbd/globals.h"
+#include "../libcli/smb/smb_common.h"
+#include "../lib/util/tevent_ntstatus.h"
+#include "include/ntioctl.h"
+#include "../librpc/ndr/libndr.h"
+#include "smb2_ioctl_private.h"
+
+static NTSTATUS fsctl_validate_neg_info(TALLOC_CTX *mem_ctx,
+				        struct tevent_context *ev,
+				        struct smbXsrv_connection *conn,
+				        DATA_BLOB *in_input,
+				        uint32_t in_max_output,
+				        DATA_BLOB *out_output,
+					bool *disconnect)
+{
+	uint32_t in_capabilities;
+	DATA_BLOB in_guid_blob;
+	struct GUID in_guid;
+	uint16_t in_security_mode;
+	uint16_t in_num_dialects;
+	uint16_t i;
+	DATA_BLOB out_guid_blob;
+	NTSTATUS status;
+
+	if (in_input->length < 0x18) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	in_capabilities = IVAL(in_input->data, 0x00);
+	in_guid_blob = data_blob_const(in_input->data + 0x04, 16);
+	in_security_mode = SVAL(in_input->data, 0x14);
+	in_num_dialects = SVAL(in_input->data, 0x16);
+
+	if (in_input->length < (0x18 + in_num_dialects*2)) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if (in_max_output < 0x18) {
+		return NT_STATUS_BUFFER_TOO_SMALL;
+	}
+
+	status = GUID_from_ndr_blob(&in_guid_blob, &in_guid);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (in_num_dialects != conn->smb2.client.num_dialects) {
+		*disconnect = true;
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	for (i=0; i < in_num_dialects; i++) {
+		uint16_t v = SVAL(in_input->data, 0x18 + i*2);
+
+		if (conn->smb2.client.dialects[i] != v) {
+			*disconnect = true;
+			return NT_STATUS_ACCESS_DENIED;
+		}
+	}
+
+	if (GUID_compare(&in_guid, &conn->smb2.client.guid) != 0) {
+		*disconnect = true;
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	if (in_security_mode != conn->smb2.client.security_mode) {
+		*disconnect = true;
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	if (in_capabilities != conn->smb2.client.capabilities) {
+		*disconnect = true;
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	status = GUID_to_ndr_blob(&conn->smb2.server.guid, mem_ctx,
+				  &out_guid_blob);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	*out_output = data_blob_talloc(mem_ctx, NULL, 0x18);
+	if (out_output->data == NULL) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	SIVAL(out_output->data, 0x00, conn->smb2.server.capabilities);
+	memcpy(out_output->data+0x04, out_guid_blob.data, 16);
+	SIVAL(out_output->data, 0x14, conn->smb2.server.security_mode);
+	SIVAL(out_output->data, 0x16, conn->smb2.server.dialect);
+
+	return NT_STATUS_OK;
+}
+
+NTSTATUS smb2_ioctl_network_fs(uint32_t ctl_code,
+			       struct tevent_context *ev,
+			       struct tevent_req *req,
+			       struct smbd_smb2_ioctl_state *state)
+{
+	NTSTATUS status;
+
+	switch (ctl_code) {
+	case FSCTL_VALIDATE_NEGOTIATE_INFO:
+	{
+		status = fsctl_validate_neg_info(state, ev,
+						 state->smbreq->sconn->conn,
+						 &state->in_input,
+						 state->in_max_output,
+						 &state->out_output,
+						 &state->disconnect);
+		if (!tevent_req_nterror(req, status)) {
+			tevent_req_done(req);
+		}
+		return tevent_req_post(req, ev);
+	}
+	default: {
+		uint8_t *out_data = NULL;
+		uint32_t out_data_len = 0;
+
+		status = SMB_VFS_FSCTL(state->fsp,
+				       state,
+				       ctl_code,
+				       state->smbreq->flags2,
+				       state->in_input.data,
+				       state->in_input.length,
+				       &out_data,
+				       state->in_max_output,
+				       &out_data_len);
+		state->out_output = data_blob_const(out_data, out_data_len);
+		if (NT_STATUS_IS_OK(status)) {
+			tevent_req_done(req);
+			return tevent_req_post(req, ev);
+		}
+
+		if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_SUPPORTED)) {
+			if (IS_IPC(state->smbreq->conn)) {
+				status = NT_STATUS_FS_DRIVER_REQUIRED;
+			} else {
+				status = NT_STATUS_INVALID_DEVICE_REQUEST;
+			}
+		}
+
+		tevent_req_nterror(req, status);
+		return tevent_req_post(req, ev);
+		break;
+	}
+	}
+
+	tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
+	return tevent_req_post(req, ev);
+}