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Diffstat (limited to 'source3/smbd/smb2_flush.c')
-rw-r--r--source3/smbd/smb2_flush.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/source3/smbd/smb2_flush.c b/source3/smbd/smb2_flush.c
new file mode 100644
index 0000000000..5164d1b4a4
--- /dev/null
+++ b/source3/smbd/smb2_flush.c
@@ -0,0 +1,120 @@
+/*
+ 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/globals.h"
+#include "../source4/libcli/smb2/smb2_constants.h"
+
+static NTSTATUS smbd_smb2_flush(struct smbd_smb2_request *req,
+ uint64_t in_file_id_volatile);
+
+NTSTATUS smbd_smb2_request_process_flush(struct smbd_smb2_request *req)
+{
+ const uint8_t *inhdr;
+ const uint8_t *inbody;
+ int i = req->current_idx;
+ DATA_BLOB outbody;
+ size_t expected_body_size = 0x18;
+ size_t body_size;
+ uint64_t in_file_id_persistent;
+ uint64_t in_file_id_volatile;
+ NTSTATUS status;
+
+ inhdr = (const uint8_t *)req->in.vector[i+0].iov_base;
+ if (req->in.vector[i+1].iov_len != (expected_body_size & 0xFFFFFFFE)) {
+ return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
+ }
+
+ inbody = (const uint8_t *)req->in.vector[i+1].iov_base;
+
+ body_size = SVAL(inbody, 0x00);
+ if (body_size != expected_body_size) {
+ return smbd_smb2_request_error(req, NT_STATUS_INVALID_PARAMETER);
+ }
+
+ in_file_id_persistent = BVAL(inbody, 0x08);
+ in_file_id_volatile = BVAL(inbody, 0x10);
+
+ if (in_file_id_persistent != 0) {
+ return smbd_smb2_request_error(req, NT_STATUS_FILE_CLOSED);
+ }
+
+ status = smbd_smb2_flush(req,
+ in_file_id_volatile);
+ if (!NT_STATUS_IS_OK(status)) {
+ return smbd_smb2_request_error(req, status);
+ }
+
+ outbody = data_blob_talloc(req->out.vector, NULL, 0x10);
+ if (outbody.data == NULL) {
+ return smbd_smb2_request_error(req, NT_STATUS_NO_MEMORY);
+ }
+
+ SSVAL(outbody.data, 0x00, 0x04); /* struct size */
+ SSVAL(outbody.data, 0x02, 0); /* reserved */
+
+ return smbd_smb2_request_done(req, outbody, NULL);
+}
+
+static NTSTATUS smbd_smb2_flush(struct smbd_smb2_request *req,
+ uint64_t in_file_id_volatile)
+{
+ NTSTATUS status;
+ struct smb_request *smbreq;
+ connection_struct *conn = req->tcon->compat_conn;
+ files_struct *fsp;
+
+ DEBUG(10,("smbd_smb2_flush: file_id[0x%016llX]\n",
+ (unsigned long long)in_file_id_volatile));
+
+ smbreq = smbd_smb2_fake_smb_request(req);
+ if (smbreq == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ /* If it's an IPC, pass off the pipe handler. */
+ if (IS_IPC(conn)) {
+ return NT_STATUS_NOT_IMPLEMENTED;
+ }
+
+ fsp = file_fsp(smbreq, (uint16_t)in_file_id_volatile);
+ if (fsp == NULL) {
+ return NT_STATUS_FILE_CLOSED;
+ }
+ if (conn != fsp->conn) {
+ return NT_STATUS_FILE_CLOSED;
+ }
+ if (req->session->vuid != fsp->vuid) {
+ return NT_STATUS_FILE_CLOSED;
+ }
+
+ if (!CHECK_WRITE(fsp)) {
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ status = sync_file(conn, fsp, true);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(5,("smbd_smb2_flush: sync_file for %s returned %s\n",
+ fsp->fsp_name, nt_errstr(status)));
+ return status;
+ }
+
+ return NT_STATUS_OK;
+}