FuseOpenOrCreate.c File Reference

#include <Library/BaseLib.h>
#include "VirtioFsDxe.h"

Go to the source code of this file.

Functions
EFI_STATUS	VirtioFsFuseOpenOrCreate (IN OUT VIRTIO_FS *VirtioFs, IN UINT64 ParentNodeId, IN CHAR8 *Name, OUT UINT64 *NodeId, OUT UINT64 *FuseHandle)

Detailed Description

FUSE_CREATE wrapper for the Virtio Filesystem device.

Copyright (C) 2020, Red Hat, Inc.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file FuseOpenOrCreate.c.

Function Documentation

VirtioFsFuseOpenOrCreate()

EFI_STATUS VirtioFsFuseOpenOrCreate	(	IN OUT VIRTIO_FS *	VirtioFs,
		IN UINT64	ParentNodeId,
		IN CHAR8 *	Name,
		OUT UINT64 *	NodeId,
		OUT UINT64 *	FuseHandle
	)

Send a FUSE_CREATE request to the Virtio Filesystem device, for opening a regular file with (O_RDWR | O_CREAT) semantics.

The function may only be called after VirtioFsFuseInitSession() returns successfully and before VirtioFsUninit() is called.

Parameters

[in,out]	VirtioFs	The Virtio Filesystem device to send the FUSE_CREATE request to. On output, the FUSE request counter "VirtioFs->RequestId" will have been incremented.
[in]	ParentNodeId	The inode number of the direct parent directory of the regular file to open or create.
[in]	Name	The single-component filename of the regular file to open or create, under the parent directory identified by ParentNodeId.
[out]	NodeId	The inode number of the regular file, returned by the Virtio Filesystem device.
[out]	FuseHandle	The open file handle returned by the Virtio Filesystem device.

Return values

EFI_SUCCESS

The regular file has been opened, and (if necessary) created.

Returns

The "errno" value mapped to an EFI_STATUS code, if the Virtio Filesystem device explicitly reported an error.

Error codes propagated from VirtioFsSgListsValidate(), VirtioFsFuseNewRequest(), VirtioFsSgListsSubmit(), VirtioFsFuseCheckResponse().

Definition at line 48 of file FuseOpenOrCreate.c.