fuse: add opcode and types for copyfilerange and lseek

add MaxPages to InitOut

fuse/opcode.go

@@ -58,6 +58,8 @@ const (
 	_OP_FALLOCATE       = int32(43) // protocol version 19.
 	_OP_READDIRPLUS     = int32(44) // protocol version 21.
 	_OP_RENAME2         = int32(45) // protocol version 23.
+	_OP_LSEEK           = int32(46)
+	_OP_COPY_FILE_RANGE = int32(47)
 
 	// The following entries don't have to be compatible across Go-FUSE versions.
 	_OP_NOTIFY_INVAL_ENTRY    = int32(100)
@@ -539,6 +541,8 @@ func init() {
 		_OP_FALLOCATE:       unsafe.Sizeof(FallocateIn{}),
 		_OP_READDIRPLUS:     unsafe.Sizeof(ReadIn{}),
 		_OP_RENAME2:         unsafe.Sizeof(RenameIn{}),
+		_OP_LSEEK:           unsafe.Sizeof(LseekIn{}),
+		_OP_COPY_FILE_RANGE: unsafe.Sizeof(CopyFileRangeIn{}),
 	} {
 		operationHandlers[op].InputSize = sz
 	}
@@ -568,6 +572,7 @@ func init() {
 		_OP_NOTIFY_STORE_CACHE:    unsafe.Sizeof(NotifyStoreOut{}),
 		_OP_NOTIFY_RETRIEVE_CACHE: unsafe.Sizeof(NotifyRetrieveOut{}),
 		_OP_NOTIFY_DELETE:         unsafe.Sizeof(NotifyInvalDeleteOut{}),
+		_OP_LSEEK:                 unsafe.Sizeof(LseekOut{}),
 	} {
 		operationHandlers[op].OutputSize = sz
 	}
@@ -621,6 +626,8 @@ func init() {
 		_OP_FALLOCATE:             "FALLOCATE",
 		_OP_READDIRPLUS:           "READDIRPLUS",
 		_OP_RENAME2:               "RENAME2",
+		_OP_LSEEK:                 "LSEEK",
+		_OP_COPY_FILE_RANGE:       "COPY_FILE_RANGE",
 	} {
 		operationHandlers[op].Name = v
 	}
@@ -690,6 +697,7 @@ func init() {
 		_OP_STATFS:                func(ptr unsafe.Pointer) interface{} { return (*StatfsOut)(ptr) },
 		_OP_SYMLINK:               func(ptr unsafe.Pointer) interface{} { return (*EntryOut)(ptr) },
 		_OP_GETLK:                 func(ptr unsafe.Pointer) interface{} { return (*LkOut)(ptr) },
+		_OP_LSEEK:                 func(ptr unsafe.Pointer) interface{} { return (*LseekOut)(ptr) },
 	} {
 		operationHandlers[op].DecodeOut = f
 	}
@@ -725,6 +733,8 @@ func init() {
 		_OP_SETLKW:          func(ptr unsafe.Pointer) interface{} { return (*LkIn)(ptr) },
 		_OP_RENAME2:         func(ptr unsafe.Pointer) interface{} { return (*RenameIn)(ptr) },
 		_OP_INTERRUPT:       func(ptr unsafe.Pointer) interface{} { return (*InterruptIn)(ptr) },
+		_OP_LSEEK:           func(ptr unsafe.Pointer) interface{} { return (*LseekIn)(ptr) },
+		_OP_COPY_FILE_RANGE: func(ptr unsafe.Pointer) interface{} { return (*CopyFileRangeIn)(ptr) },
 	} {
 		operationHandlers[op].DecodeIn = f
 	}

fuse/types.go

@@ -305,7 +305,9 @@ type InitOut struct {
 	CongestionThreshold uint16
 	MaxWrite            uint32
 	TimeGran            uint32
-	Unused              [9]uint32
+	MaxPages            uint16
+	Padding             uint16
+	Unused              [8]uint32
 }
 
 type _CuseInitIn struct {
@@ -504,6 +506,27 @@ type FlushIn struct {
 	LockOwner uint64
 }
 
+type LseekIn struct {
+	Fh      uint64
+	Offset  uint64
+	Whence  uint32
+	Padding uint32
+}
+
+type LseekOut struct {
+	Offset uint64
+}
+
+type CopyFileRangeIn struct {
+	FhIn      uint64
+	OffIn     uint64
+	NodeIdOut uint64
+	FhOut     uint64
+	OffOut    uint64
+	Len       uint64
+	Flags     uint64
+}
+
 type EntryOut struct {
 	NodeId         uint64
 	Generation     uint64