Module tftp

TFTP library.

Netsvc uses TFTP for file transfers. TFTP is defined in RFC 1350. Netsvc also incorporates the following extensions:

• Option extension RFC 2347.
• Block size option RFC 2348.
• Timeout interval, and transfer size options RFC 2349.
• Windows size option RFC 7440.

Over the years netsvc also introduces some fuchsia-specific extensions, which are called out in documentation.

Structs

• AckBody
  The body of an Ack message.
• AckPacketBuilder
  Implements [InnerPacketBuilder] for ack messages.
• AllOptions
  A container with all possible TftpOption values in a message.
• DataBody
  The body of a data message.
• DataPacketBuilder
  Implements [PacketBuilder] for a data request.
• ErrorBody
  The body of an error message.
• ErrorPacketBuilder
  Implements [InnerPacketBuilder] for error messages.
• Forceable
  Helper structure to encode forced values, a Fuchsia-specific extension to options.
• OptionAckBody
  The body of an option ack (OACK) message.
• OptionAckPacketBuilder
  Implements [InnerPacketBuilder] for option ack (OACK) messages.
• OptionCollection
  A collection of options in a TFTP message.
• RequestBody
  The body of a Read or Write request.
• TransferRequestBuilder
  Implements [InnerPacketBuilder] to build Read and Write requests.

Enums

• Opcode
  TFTP Opcodes as defined in RFC 1350 section 5.
• ParseError
  Kinds of observable ParseErrors.
• StringField
  Fields that are parsed as strings.
• TftpError
  Error codes defined in RFC 1350 appendix I.
• TftpMode
  TFTP transfer modes defined in RFC 1350.
• TftpOption
  TFTP Options.
• TftpPacket
  A TFTP packet.
• TransferDirection
  The direction of a file transfer.

Constants

• DEFAULT_BLOCK_SIZE_OPTION
  The default block size option value, according to RFC 1350.
• DEFAULT_TIMEOUT_SECS_OPTION
  The default timeout option value used in netsvc.
• DEFAULT_WINDOW_SIZE_OPTION
  The default window size option value, according to RFC 1350.
• INCOMING_PORT
  The port netsvc uses to listen to TFTP traffic.
• MAX_OPTIONS
  The maximum number of options that a request may carry.
• OUTGOING_PORT
  The port netsvc uses to send TFTP traffic from.