Adding upstream version 2:4.17.12+dfsg.upstream/2%4.17.12+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 80 insertions, 0 deletions

diff --git a/source4/ntvfs/posix/pvfs_flush.c b/source4/ntvfs/posix/pvfs_flush.c
new file mode 100644
index 0000000..f425fcc
--- /dev/null
+++ b/source4/ntvfs/posix/pvfs_flush.c
@@ -0,0 +1,80 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   POSIX NTVFS backend - flush
+
+   Copyright (C) Andrew Tridgell 2004
+
+   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 "vfs_posix.h"
+
+/*
+  flush a single open file
+*/
+static void pvfs_flush_file(struct pvfs_state *pvfs, struct pvfs_file *f)
+{
+	if (f->handle->fd == -1) {
+		return;
+	}
+	if (pvfs->flags & PVFS_FLAG_STRICT_SYNC) {
+		fsync(f->handle->fd);
+	}
+}
+
+/*
+  flush a fnum
+*/
+NTSTATUS pvfs_flush(struct ntvfs_module_context *ntvfs,
+		    struct ntvfs_request *req,
+		    union smb_flush *io)
+{
+	struct pvfs_state *pvfs = talloc_get_type(ntvfs->private_data,
+				  struct pvfs_state);
+	struct pvfs_file *f;
+
+	switch (io->generic.level) {
+	case RAW_FLUSH_FLUSH:
+	case RAW_FLUSH_SMB2:
+		/* TODO: take care of io->smb2.in.unknown */
+		f = pvfs_find_fd(pvfs, req, io->generic.in.file.ntvfs);
+		if (!f) {
+			return NT_STATUS_INVALID_HANDLE;
+		}
+		pvfs_flush_file(pvfs, f);
+		io->smb2.out.reserved = 0;
+		return NT_STATUS_OK;
+
+	case RAW_FLUSH_ALL:
+		if (!(pvfs->flags & PVFS_FLAG_STRICT_SYNC)) {
+			return NT_STATUS_OK;
+		}
+
+		/* 
+		 * they are asking to flush all open files
+		 * for the given SMBPID
+		 */
+		for (f=pvfs->files.list;f;f=f->next) {
+			if (f->ntvfs->smbpid != req->smbpid) continue;
+
+			pvfs_flush_file(pvfs, f);
+		}
+
+		return NT_STATUS_OK;
+	}
+
+	return NT_STATUS_INVALID_LEVEL;
+}