Merge release-20200907.0-37-g3ca73841d (automated)

1 files changed, 70 insertions, 640 deletions

diff --git a/pkg/abi/linux/fuse.go b/pkg/abi/linux/fuse.go
index c2357a2ee..7e30483ee 100644
--- a/pkg/abi/linux/fuse.go
+++ b/pkg/abi/linux/fuse.go
@@ -14,20 +14,12 @@
 
 package linux
 
-import (
-	"gvisor.dev/gvisor/tools/go_marshal/marshal"
-	"gvisor.dev/gvisor/tools/go_marshal/primitive"
-)
-
 // +marshal
 type FUSEOpcode uint32
 
 // +marshal
 type FUSEOpID uint64
 
-// FUSE_ROOT_ID is the id of root inode.
-const FUSE_ROOT_ID = 1
-
 // Opcodes for FUSE operations. Analogous to the opcodes in include/linux/fuse.h.
 const (
 	FUSE_LOOKUP   FUSEOpcode = 1
@@ -124,28 +116,61 @@ type FUSEHeaderOut struct {
 	Unique FUSEOpID
 }
 
+// FUSEWriteIn is the header written by a daemon when it makes a
+// write request to the FUSE filesystem.
+//
+// +marshal
+type FUSEWriteIn struct {
+	// Fh specifies the file handle that is being written to.
+	Fh uint64
+
+	// Offset is the offset of the write.
+	Offset uint64
+
+	// Size is the size of data being written.
+	Size uint32
+
+	// WriteFlags is the flags used during the write.
+	WriteFlags uint32
+
+	// LockOwner is the ID of the lock owner.
+	LockOwner uint64
+
+	// Flags is the flags for the request.
+	Flags uint32
+
+	_ uint32
+}
+
 // FUSE_INIT flags, consistent with the ones in include/uapi/linux/fuse.h.
-// Our taget version is 7.23 but we have few implemented in advance.
 const (
-	FUSE_ASYNC_READ       = 1 << 0
-	FUSE_POSIX_LOCKS      = 1 << 1
-	FUSE_FILE_OPS         = 1 << 2
-	FUSE_ATOMIC_O_TRUNC   = 1 << 3
-	FUSE_EXPORT_SUPPORT   = 1 << 4
-	FUSE_BIG_WRITES       = 1 << 5
-	FUSE_DONT_MASK        = 1 << 6
-	FUSE_SPLICE_WRITE     = 1 << 7
-	FUSE_SPLICE_MOVE      = 1 << 8
-	FUSE_SPLICE_READ      = 1 << 9
-	FUSE_FLOCK_LOCKS      = 1 << 10
-	FUSE_HAS_IOCTL_DIR    = 1 << 11
-	FUSE_AUTO_INVAL_DATA  = 1 << 12
-	FUSE_DO_READDIRPLUS   = 1 << 13
-	FUSE_READDIRPLUS_AUTO = 1 << 14
-	FUSE_ASYNC_DIO        = 1 << 15
-	FUSE_WRITEBACK_CACHE  = 1 << 16
-	FUSE_NO_OPEN_SUPPORT  = 1 << 17
-	FUSE_MAX_PAGES        = 1 << 22 // From FUSE 7.28
+	FUSE_ASYNC_READ          = 1 << 0
+	FUSE_POSIX_LOCKS         = 1 << 1
+	FUSE_FILE_OPS            = 1 << 2
+	FUSE_ATOMIC_O_TRUNC      = 1 << 3
+	FUSE_EXPORT_SUPPORT      = 1 << 4
+	FUSE_BIG_WRITES          = 1 << 5
+	FUSE_DONT_MASK           = 1 << 6
+	FUSE_SPLICE_WRITE        = 1 << 7
+	FUSE_SPLICE_MOVE         = 1 << 8
+	FUSE_SPLICE_READ         = 1 << 9
+	FUSE_FLOCK_LOCKS         = 1 << 10
+	FUSE_HAS_IOCTL_DIR       = 1 << 11
+	FUSE_AUTO_INVAL_DATA     = 1 << 12
+	FUSE_DO_READDIRPLUS      = 1 << 13
+	FUSE_READDIRPLUS_AUTO    = 1 << 14
+	FUSE_ASYNC_DIO           = 1 << 15
+	FUSE_WRITEBACK_CACHE     = 1 << 16
+	FUSE_NO_OPEN_SUPPORT     = 1 << 17
+	FUSE_PARALLEL_DIROPS     = 1 << 18
+	FUSE_HANDLE_KILLPRIV     = 1 << 19
+	FUSE_POSIX_ACL           = 1 << 20
+	FUSE_ABORT_ERROR         = 1 << 21
+	FUSE_MAX_PAGES           = 1 << 22
+	FUSE_CACHE_SYMLINKS      = 1 << 23
+	FUSE_NO_OPENDIR_SUPPORT  = 1 << 24
+	FUSE_EXPLICIT_INVAL_DATA = 1 << 25
+	FUSE_MAP_ALIGNMENT       = 1 << 26
 )
 
 // currently supported FUSE protocol version numbers.
@@ -154,13 +179,6 @@ const (
 	FUSE_KERNEL_MINOR_VERSION = 31
 )
 
-// Constants relevant to FUSE operations.
-const (
-	FUSE_NAME_MAX     = 1024
-	FUSE_PAGE_SIZE    = 4096
-	FUSE_DIRENT_ALIGN = 8
-)
-
 // FUSEInitIn is the request sent by the kernel to the daemon,
 // to negotiate the version and flags.
 //
@@ -181,7 +199,7 @@ type FUSEInitIn struct {
 }
 
 // FUSEInitOut is the reply sent by the daemon to the kernel
-// for FUSEInitIn. We target FUSE 7.23; this struct supports 7.28.
+// for FUSEInitIn.
 //
 // +marshal
 type FUSEInitOut struct {
@@ -222,16 +240,13 @@ type FUSEInitOut struct {
 	// if the value from daemon is too large.
 	MaxPages uint16
 
-	_ uint16
+	// MapAlignment is an unknown field and not used by this package at this moment.
+	// Use as a placeholder to be consistent with the FUSE protocol.
+	MapAlignment uint16
 
 	_ [8]uint32
 }
 
-// FUSE_GETATTR_FH is currently the only flag of FUSEGetAttrIn.GetAttrFlags.
-// If it is set, the file handle (FUSEGetAttrIn.Fh) is used to indicate the
-// object instead of the node id attribute in the request header.
-const FUSE_GETATTR_FH = (1 << 0)
-
 // FUSEGetAttrIn is the request sent by the kernel to the daemon,
 // to get the attribute of a inode.
 //
@@ -252,52 +267,22 @@ type FUSEGetAttrIn struct {
 //
 // +marshal
 type FUSEAttr struct {
-	// Ino is the inode number of this file.
-	Ino uint64
-
-	// Size is the size of this file.
-	Size uint64
-
-	// Blocks is the number of the 512B blocks allocated by this file.
-	Blocks uint64
-
-	// Atime is the time of last access.
-	Atime uint64
-
-	// Mtime is the time of last modification.
-	Mtime uint64
-
-	// Ctime is the time of last status change.
-	Ctime uint64
-
-	// AtimeNsec is the nano second part of Atime.
+	Ino       uint64
+	Size      uint64
+	Blocks    uint64
+	Atime     uint64
+	Mtime     uint64
+	Ctime     uint64
 	AtimeNsec uint32
-
-	// MtimeNsec is the nano second part of Mtime.
 	MtimeNsec uint32
-
-	// CtimeNsec is the nano second part of Ctime.
 	CtimeNsec uint32
-
-	// Mode contains the file type and mode.
-	Mode uint32
-
-	// Nlink is the number of the hard links.
-	Nlink uint32
-
-	// UID is user ID of the owner.
-	UID uint32
-
-	// GID is group ID of the owner.
-	GID uint32
-
-	// Rdev is the device ID if this is a special file.
-	Rdev uint32
-
-	// BlkSize is the block size for filesystem I/O.
-	BlkSize uint32
-
-	_ uint32
+	Mode      uint32
+	Nlink     uint32
+	UID       uint32
+	GID       uint32
+	Rdev      uint32
+	BlkSize   uint32
+	_         uint32
 }
 
 // FUSEGetAttrOut is the reply sent by the daemon to the kernel
@@ -316,558 +301,3 @@ type FUSEGetAttrOut struct {
 	// Attr contains the metadata returned from the FUSE server
 	Attr FUSEAttr
 }
-
-// FUSEEntryOut is the reply sent by the daemon to the kernel
-// for FUSE_MKNOD, FUSE_MKDIR, FUSE_SYMLINK, FUSE_LINK and
-// FUSE_LOOKUP.
-//
-// +marshal
-type FUSEEntryOut struct {
-	// NodeID is the ID for current inode.
-	NodeID uint64
-
-	// Generation is the generation number of inode.
-	// Used to identify an inode that have different ID at different time.
-	Generation uint64
-
-	// EntryValid indicates timeout for an entry.
-	EntryValid uint64
-
-	// AttrValid indicates timeout for an entry's attributes.
-	AttrValid uint64
-
-	// EntryValidNsec indicates timeout for an entry in nanosecond.
-	EntryValidNSec uint32
-
-	// AttrValidNsec indicates timeout for an entry's attributes in nanosecond.
-	AttrValidNSec uint32
-
-	// Attr contains the attributes of an entry.
-	Attr FUSEAttr
-}
-
-// FUSELookupIn is the request sent by the kernel to the daemon
-// to look up a file name.
-//
-// Dynamically-sized objects cannot be marshalled.
-type FUSELookupIn struct {
-	marshal.StubMarshallable
-
-	// Name is a file name to be looked up.
-	Name string
-}
-
-// MarshalBytes serializes r.name to the dst buffer.
-func (r *FUSELookupIn) MarshalBytes(buf []byte) {
-	copy(buf, r.Name)
-}
-
-// SizeBytes is the size of the memory representation of FUSELookupIn.
-// 1 extra byte for null-terminated string.
-func (r *FUSELookupIn) SizeBytes() int {
-	return len(r.Name) + 1
-}
-
-// MAX_NON_LFS indicates the maximum offset without large file support.
-const MAX_NON_LFS = ((1 << 31) - 1)
-
-// flags returned by OPEN request.
-const (
-	// FOPEN_DIRECT_IO indicates bypassing page cache for this opened file.
-	FOPEN_DIRECT_IO = 1 << 0
-	// FOPEN_KEEP_CACHE avoids invalidate of data cache on open.
-	FOPEN_KEEP_CACHE = 1 << 1
-	// FOPEN_NONSEEKABLE indicates the file cannot be seeked.
-	FOPEN_NONSEEKABLE = 1 << 2
-)
-
-// FUSEOpenIn is the request sent by the kernel to the daemon,
-// to negotiate flags and get file handle.
-//
-// +marshal
-type FUSEOpenIn struct {
-	// Flags of this open request.
-	Flags uint32
-
-	_ uint32
-}
-
-// FUSEOpenOut is the reply sent by the daemon to the kernel
-// for FUSEOpenIn.
-//
-// +marshal
-type FUSEOpenOut struct {
-	// Fh is the file handler for opened file.
-	Fh uint64
-
-	// OpenFlag for the opened file.
-	OpenFlag uint32
-
-	_ uint32
-}
-
-// FUSE_READ flags, consistent with the ones in include/uapi/linux/fuse.h.
-const (
-	FUSE_READ_LOCKOWNER = 1 << 1
-)
-
-// FUSEReadIn is the request sent by the kernel to the daemon
-// for FUSE_READ.
-//
-// +marshal
-type FUSEReadIn struct {
-	// Fh is the file handle in userspace.
-	Fh uint64
-
-	// Offset is the read offset.
-	Offset uint64
-
-	// Size is the number of bytes to read.
-	Size uint32
-
-	// ReadFlags for this FUSE_READ request.
-	// Currently only contains FUSE_READ_LOCKOWNER.
-	ReadFlags uint32
-
-	// LockOwner is the id of the lock owner if there is one.
-	LockOwner uint64
-
-	// Flags for the underlying file.
-	Flags uint32
-
-	_ uint32
-}
-
-// FUSEWriteIn is the first part of the payload of the
-// request sent by the kernel to the daemon
-// for FUSE_WRITE (struct for FUSE version >= 7.9).
-//
-// The second part of the payload is the
-// binary bytes of the data to be written.
-//
-// +marshal
-type FUSEWriteIn struct {
-	// Fh is the file handle in userspace.
-	Fh uint64
-
-	// Offset is the write offset.
-	Offset uint64
-
-	// Size is the number of bytes to write.
-	Size uint32
-
-	// ReadFlags for this FUSE_WRITE request.
-	WriteFlags uint32
-
-	// LockOwner is the id of the lock owner if there is one.
-	LockOwner uint64
-
-	// Flags for the underlying file.
-	Flags uint32
-
-	_ uint32
-}
-
-// FUSEWriteOut is the payload of the reply sent by the daemon to the kernel
-// for a FUSE_WRITE request.
-//
-// +marshal
-type FUSEWriteOut struct {
-	// Size is the number of bytes written.
-	Size uint32
-
-	_ uint32
-}
-
-// FUSEReleaseIn is the request sent by the kernel to the daemon
-// when there is no more reference to a file.
-//
-// +marshal
-type FUSEReleaseIn struct {
-	// Fh is the file handler for the file to be released.
-	Fh uint64
-
-	// Flags of the file.
-	Flags uint32
-
-	// ReleaseFlags of this release request.
-	ReleaseFlags uint32
-
-	// LockOwner is the id of the lock owner if there is one.
-	LockOwner uint64
-}
-
-// FUSECreateMeta contains all the static fields of FUSECreateIn,
-// which is used for FUSE_CREATE.
-//
-// +marshal
-type FUSECreateMeta struct {
-	// Flags of the creating file.
-	Flags uint32
-
-	// Mode is the mode of the creating file.
-	Mode uint32
-
-	// Umask is the current file mode creation mask.
-	Umask uint32
-	_     uint32
-}
-
-// FUSECreateIn contains all the arguments sent by the kernel to the daemon, to
-// atomically create and open a new regular file.
-//
-// Dynamically-sized objects cannot be marshalled.
-type FUSECreateIn struct {
-	marshal.StubMarshallable
-
-	// CreateMeta contains mode, rdev and umash field for FUSE_MKNODS.
-	CreateMeta FUSECreateMeta
-
-	// Name is the name of the node to create.
-	Name string
-}
-
-// MarshalBytes serializes r.CreateMeta and r.Name to the dst buffer.
-func (r *FUSECreateIn) MarshalBytes(buf []byte) {
-	r.CreateMeta.MarshalBytes(buf[:r.CreateMeta.SizeBytes()])
-	copy(buf[r.CreateMeta.SizeBytes():], r.Name)
-}
-
-// SizeBytes is the size of the memory representation of FUSECreateIn.
-// 1 extra byte for null-terminated string.
-func (r *FUSECreateIn) SizeBytes() int {
-	return r.CreateMeta.SizeBytes() + len(r.Name) + 1
-}
-
-// FUSEMknodMeta contains all the static fields of FUSEMknodIn,
-// which is used for FUSE_MKNOD.
-//
-// +marshal
-type FUSEMknodMeta struct {
-	// Mode of the inode to create.
-	Mode uint32
-
-	// Rdev encodes device major and minor information.
-	Rdev uint32
-
-	// Umask is the current file mode creation mask.
-	Umask uint32
-
-	_ uint32
-}
-
-// FUSEMknodIn contains all the arguments sent by the kernel
-// to the daemon, to create a new file node.
-//
-// Dynamically-sized objects cannot be marshalled.
-type FUSEMknodIn struct {
-	marshal.StubMarshallable
-
-	// MknodMeta contains mode, rdev and umash field for FUSE_MKNODS.
-	MknodMeta FUSEMknodMeta
-
-	// Name is the name of the node to create.
-	Name string
-}
-
-// MarshalBytes serializes r.MknodMeta and r.Name to the dst buffer.
-func (r *FUSEMknodIn) MarshalBytes(buf []byte) {
-	r.MknodMeta.MarshalBytes(buf[:r.MknodMeta.SizeBytes()])
-	copy(buf[r.MknodMeta.SizeBytes():], r.Name)
-}
-
-// SizeBytes is the size of the memory representation of FUSEMknodIn.
-// 1 extra byte for null-terminated string.
-func (r *FUSEMknodIn) SizeBytes() int {
-	return r.MknodMeta.SizeBytes() + len(r.Name) + 1
-}
-
-// FUSESymLinkIn is the request sent by the kernel to the daemon,
-// to create a symbolic link.
-//
-// Dynamically-sized objects cannot be marshalled.
-type FUSESymLinkIn struct {
-	marshal.StubMarshallable
-
-	// Name of symlink to create.
-	Name string
-
-	// Target of the symlink.
-	Target string
-}
-
-// MarshalBytes serializes r.Name and r.Target to the dst buffer.
-// Left null-termination at end of r.Name and r.Target.
-func (r *FUSESymLinkIn) MarshalBytes(buf []byte) {
-	copy(buf, r.Name)
-	copy(buf[len(r.Name)+1:], r.Target)
-}
-
-// SizeBytes is the size of the memory representation of FUSESymLinkIn.
-// 2 extra bytes for null-terminated string.
-func (r *FUSESymLinkIn) SizeBytes() int {
-	return len(r.Name) + len(r.Target) + 2
-}
-
-// FUSEEmptyIn is used by operations without request body.
-type FUSEEmptyIn struct{ marshal.StubMarshallable }
-
-// MarshalBytes do nothing for marshal.
-func (r *FUSEEmptyIn) MarshalBytes(buf []byte) {}
-
-// SizeBytes is 0 for empty request.
-func (r *FUSEEmptyIn) SizeBytes() int {
-	return 0
-}
-
-// FUSEMkdirMeta contains all the static fields of FUSEMkdirIn,
-// which is used for FUSE_MKDIR.
-//
-// +marshal
-type FUSEMkdirMeta struct {
-	// Mode of the directory of create.
-	Mode uint32
-
-	// Umask is the user file creation mask.
-	Umask uint32
-}
-
-// FUSEMkdirIn contains all the arguments sent by the kernel
-// to the daemon, to create a new directory.
-//
-// Dynamically-sized objects cannot be marshalled.
-type FUSEMkdirIn struct {
-	marshal.StubMarshallable
-
-	// MkdirMeta contains Mode and Umask of the directory to create.
-	MkdirMeta FUSEMkdirMeta
-
-	// Name of the directory to create.
-	Name string
-}
-
-// MarshalBytes serializes r.MkdirMeta and r.Name to the dst buffer.
-func (r *FUSEMkdirIn) MarshalBytes(buf []byte) {
-	r.MkdirMeta.MarshalBytes(buf[:r.MkdirMeta.SizeBytes()])
-	copy(buf[r.MkdirMeta.SizeBytes():], r.Name)
-}
-
-// SizeBytes is the size of the memory representation of FUSEMkdirIn.
-// 1 extra byte for null-terminated Name string.
-func (r *FUSEMkdirIn) SizeBytes() int {
-	return r.MkdirMeta.SizeBytes() + len(r.Name) + 1
-}
-
-// FUSERmDirIn is the request sent by the kernel to the daemon
-// when trying to remove a directory.
-//
-// Dynamically-sized objects cannot be marshalled.
-type FUSERmDirIn struct {
-	marshal.StubMarshallable
-
-	// Name is a directory name to be removed.
-	Name string
-}
-
-// MarshalBytes serializes r.name to the dst buffer.
-func (r *FUSERmDirIn) MarshalBytes(buf []byte) {
-	copy(buf, r.Name)
-}
-
-// SizeBytes is the size of the memory representation of FUSERmDirIn.
-func (r *FUSERmDirIn) SizeBytes() int {
-	return len(r.Name) + 1
-}
-
-// FUSEDirents is a list of Dirents received from the FUSE daemon server.
-// It is used for FUSE_READDIR.
-//
-// Dynamically-sized objects cannot be marshalled.
-type FUSEDirents struct {
-	marshal.StubMarshallable
-
-	Dirents []*FUSEDirent
-}
-
-// FUSEDirent is a Dirent received from the FUSE daemon server.
-// It is used for FUSE_READDIR.
-//
-// Dynamically-sized objects cannot be marshalled.
-type FUSEDirent struct {
-	marshal.StubMarshallable
-
-	// Meta contains all the static fields of FUSEDirent.
-	Meta FUSEDirentMeta
-
-	// Name is the filename of the dirent.
-	Name string
-}
-
-// FUSEDirentMeta contains all the static fields of FUSEDirent.
-// It is used for FUSE_READDIR.
-//
-// +marshal
-type FUSEDirentMeta struct {
-	// Inode of the dirent.
-	Ino uint64
-
-	// Offset of the dirent.
-	Off uint64
-
-	// NameLen is the length of the dirent name.
-	NameLen uint32
-
-	// Type of the dirent.
-	Type uint32
-}
-
-// SizeBytes is the size of the memory representation of FUSEDirents.
-func (r *FUSEDirents) SizeBytes() int {
-	var sizeBytes int
-	for _, dirent := range r.Dirents {
-		sizeBytes += dirent.SizeBytes()
-	}
-
-	return sizeBytes
-}
-
-// UnmarshalBytes deserializes FUSEDirents from the src buffer.
-func (r *FUSEDirents) UnmarshalBytes(src []byte) {
-	for {
-		if len(src) <= (*FUSEDirentMeta)(nil).SizeBytes() {
-			break
-		}
-
-		// Its unclear how many dirents there are in src. Each dirent is dynamically
-		// sized and so we can't make assumptions about how many dirents we can allocate.
-		if r.Dirents == nil {
-			r.Dirents = make([]*FUSEDirent, 0)
-		}
-
-		// We have to allocate a struct for each dirent - there must be a better way
-		// to do this. Linux allocates 1 page to store all the dirents and then
-		// simply reads them from the page.
-		var dirent FUSEDirent
-		dirent.UnmarshalBytes(src)
-		r.Dirents = append(r.Dirents, &dirent)
-
-		src = src[dirent.SizeBytes():]
-	}
-}
-
-// SizeBytes is the size of the memory representation of FUSEDirent.
-func (r *FUSEDirent) SizeBytes() int {
-	dataSize := r.Meta.SizeBytes() + len(r.Name)
-
-	// Each Dirent must be padded such that its size is a multiple
-	// of FUSE_DIRENT_ALIGN. Similar to the fuse dirent alignment
-	// in linux/fuse.h.
-	return (dataSize + (FUSE_DIRENT_ALIGN - 1)) & ^(FUSE_DIRENT_ALIGN - 1)
-}
-
-// UnmarshalBytes deserializes FUSEDirent from the src buffer.
-func (r *FUSEDirent) UnmarshalBytes(src []byte) {
-	r.Meta.UnmarshalBytes(src)
-	src = src[r.Meta.SizeBytes():]
-
-	if r.Meta.NameLen > FUSE_NAME_MAX {
-		// The name is too long and therefore invalid. We don't
-		// need to unmarshal the name since it'll be thrown away.
-		return
-	}
-
-	buf := make([]byte, r.Meta.NameLen)
-	name := primitive.ByteSlice(buf)
-	name.UnmarshalBytes(src[:r.Meta.NameLen])
-	r.Name = string(name)
-}
-
-// FATTR_* consts are the attribute flags defined in include/uapi/linux/fuse.h.
-// These should be or-ed together for setattr to know what has been changed.
-const (
-	FATTR_MODE      = (1 << 0)
-	FATTR_UID       = (1 << 1)
-	FATTR_GID       = (1 << 2)
-	FATTR_SIZE      = (1 << 3)
-	FATTR_ATIME     = (1 << 4)
-	FATTR_MTIME     = (1 << 5)
-	FATTR_FH        = (1 << 6)
-	FATTR_ATIME_NOW = (1 << 7)
-	FATTR_MTIME_NOW = (1 << 8)
-	FATTR_LOCKOWNER = (1 << 9)
-	FATTR_CTIME     = (1 << 10)
-)
-
-// FUSESetAttrIn is the request sent by the kernel to the daemon,
-// to set the attribute(s) of a file.
-//
-// +marshal
-type FUSESetAttrIn struct {
-	// Valid indicates which attributes are modified by this request.
-	Valid uint32
-
-	_ uint32
-
-	// Fh is used to identify the file if FATTR_FH is set in Valid.
-	Fh uint64
-
-	// Size is the size that the request wants to change to.
-	Size uint64
-
-	// LockOwner is the owner of the lock that the request wants to change to.
-	LockOwner uint64
-
-	// Atime is the access time that the request wants to change to.
-	Atime uint64
-
-	// Mtime is the modification time that the request wants to change to.
-	Mtime uint64
-
-	// Ctime is the status change time that the request wants to change to.
-	Ctime uint64
-
-	// AtimeNsec is the nano second part of Atime.
-	AtimeNsec uint32
-
-	// MtimeNsec is the nano second part of Mtime.
-	MtimeNsec uint32
-
-	// CtimeNsec is the nano second part of Ctime.
-	CtimeNsec uint32
-
-	// Mode is the file mode that the request wants to change to.
-	Mode uint32
-
-	_ uint32
-
-	// UID is the user ID of the owner that the request wants to change to.
-	UID uint32
-
-	// GID is the group ID of the owner that the request wants to change to.
-	GID uint32
-
-	_ uint32
-}
-
-// FUSEUnlinkIn is the request sent by the kernel to the daemon
-// when trying to unlink a node.
-//
-// Dynamically-sized objects cannot be marshalled.
-type FUSEUnlinkIn struct {
-	marshal.StubMarshallable
-
-	// Name of the node to unlink.
-	Name string
-}
-
-// MarshalBytes serializes r.name to the dst buffer, which should
-// have size len(r.Name) + 1 and last byte set to 0.
-func (r *FUSEUnlinkIn) MarshalBytes(buf []byte) {
-	copy(buf, r.Name)
-}
-
-// SizeBytes is the size of the memory representation of FUSEUnlinkIn.
-// 1 extra byte for null-terminated Name string.
-func (r *FUSEUnlinkIn) SizeBytes() int {
-	return len(r.Name) + 1
-}