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OvmfPkg/VirtioFsDxe: implement the wrapper function for FUSE_MKDIR

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Add the VirtioFsFuseMkDir() function, for sending the FUSE_MKDIR command
to the Virtio Filesystem device.

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3097
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20201216211125.19496-20-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
This commit is contained in:
Laszlo Ersek
2020-12-16 22:10:56 +01:00
committed by mergify[bot]
parent da82d2e3a0
commit f058cb69d1
4 changed files with 198 additions and 0 deletions
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55
OvmfPkg/Include/IndustryStandard/VirtioFs.h
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@@ -81,6 +81,13 @@ typedef struct {
//
#define VIRTIO_FS_FUSE_ROOT_DIR_NODE_ID 1
//
// File mode bitmasks.
//
#define VIRTIO_FS_FUSE_MODE_PERM_RWXU 0000700u
#define VIRTIO_FS_FUSE_MODE_PERM_RWXG 0000070u
#define VIRTIO_FS_FUSE_MODE_PERM_RWXO 0000007u
//
// Flags for VirtioFsFuseOpOpen.
//
@@ -92,6 +99,7 @@ typedef struct {
//
typedef enum {
VirtioFsFuseOpForget = 2,
VirtioFsFuseOpMkDir = 9,
VirtioFsFuseOpOpen = 14,
VirtioFsFuseOpRelease = 18,
VirtioFsFuseOpFsync = 20,
@@ -123,6 +131,45 @@ typedef struct {
UINT64 Unique;
} VIRTIO_FS_FUSE_RESPONSE;
//
// Structure with which the Virtio Filesystem device reports a NodeId to the
// FUSE client (i.e., to the Virtio Filesystem driver). This structure is a
// part of the response headers for operations that inform the FUSE client of
// an inode.
//
typedef struct {
UINT64 NodeId;
UINT64 Generation;
UINT64 EntryValid;
UINT64 AttrValid;
UINT32 EntryValidNsec;
UINT32 AttrValidNsec;
} VIRTIO_FS_FUSE_NODE_RESPONSE;
//
// Structure describing the host-side attributes of an inode. This structure is
// a part of the response headers for operations that inform the FUSE client of
// an inode.
//
typedef struct {
UINT64 Ino;
UINT64 Size;
UINT64 Blocks;
UINT64 Atime;
UINT64 Mtime;
UINT64 Ctime;
UINT32 AtimeNsec;
UINT32 MtimeNsec;
UINT32 CtimeNsec;
UINT32 Mode;
UINT32 Nlink;
UINT32 Uid;
UINT32 Gid;
UINT32 Rdev;
UINT32 Blksize;
UINT32 Padding;
} VIRTIO_FS_FUSE_ATTRIBUTES_RESPONSE;
//
// Header for VirtioFsFuseOpForget.
//
@@ -130,6 +177,14 @@ typedef struct {
UINT64 NumberOfLookups;
} VIRTIO_FS_FUSE_FORGET_REQUEST;
//
// Header for VirtioFsFuseOpMkDir.
//
typedef struct {
UINT32 Mode;
UINT32 Umask;
} VIRTIO_FS_FUSE_MKDIR_REQUEST;
//
// Headers for VirtioFsFuseOpOpen and VirtioFsFuseOpOpenDir.
//