tftp

Documentation

Index

• Constants
• type Ack
  • func (a Ack) MarshalBinary() ([]byte, error)
  • func (a *Ack) UnmarshalBinary(p []byte) error
• type Data
  • func (d *Data) MarshalBinary() ([]byte, error)
  • func (d *Data) UnmarshalBinary(p []byte) error
• type Err
  • func (e Err) MarshalBinary() ([]byte, error)
  • func (e *Err) UnmarshalBinary(p []byte) error
• type ErrCode
• type OpCode
• type ReadReq
  • func (q ReadReq) MarshalBinary() ([]byte, error)
  • func (q *ReadReq) UnmarshalBinary(p []byte) error
• type Server
  • func (s Server) ListenAndServe(addr string) error
  • func (s *Server) Serve(conn net.PacketConn) error

Constants

const (
	DatagramSize = 516              // the maximum supported datagram size
	BlockSize    = DatagramSize - 4 // the DatagramSize minus a 4-byte header
)

Types

type Ack

type Ack uint16

func (Ack) MarshalBinary

func (a Ack) MarshalBinary() ([]byte, error)

func (*Ack) UnmarshalBinary

func (a *Ack) UnmarshalBinary(p []byte) error

type Data

type Data struct {
	Block   uint16
	Payload io.Reader
}

func (*Data) MarshalBinary

func (d *Data) MarshalBinary() ([]byte, error)

func (*Data) UnmarshalBinary

func (d *Data) UnmarshalBinary(p []byte) error

type Err

type Err struct {
	Error   ErrCode
	Message string
}

func (Err) MarshalBinary

func (e Err) MarshalBinary() ([]byte, error)

func (*Err) UnmarshalBinary

func (e *Err) UnmarshalBinary(p []byte) error

type ErrCode

type ErrCode uint16

const (
	ErrUnknown ErrCode = iota
	ErrNotFound
	ErrAccessViolation
	ErrDiskFull
	ErrIllegalOp
	ErrUnknownID
	ErrFileExists
	ErrNoUser
)

type OpCode

type OpCode uint16

const (
	OpRRQ OpCode = iota + 1

	OpData
	OpAck
	OpErr
)

type ReadReq

type ReadReq struct {
	Filename string
	Mode     string
}

func (ReadReq) MarshalBinary

func (q ReadReq) MarshalBinary() ([]byte, error)

func (*ReadReq) UnmarshalBinary

func (q *ReadReq) UnmarshalBinary(p []byte) error

type Server

type Server struct {
	Payload []byte        // the payload served for all read requests
	Retries uint8         // the number of times to retry a failed transmission
	Timeout time.Duration // the duration to wait for an acknowledgment
}

Server represents a read-only TFTP server that supports a subset of RFC 1350.

func (Server) ListenAndServe

func (s Server) ListenAndServe(addr string) error

func (*Server) Serve

func (s *Server) Serve(conn net.PacketConn) error