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const ( // MTU (maximum transmission unit) is the maximum number of bytes that are // allowed on the payload of the physical layer. In reality such concept // does not exist. MTU is usually defined for the link layer and upwards, // but here we are creating a hypothetical network on top of something else, // which happens to be UDP in our choice. According to this reference: // // https://stackoverflow.com/a/35697810 // // the practical maximum safe MTU for an IP datagram is 576 after RFCs 791 // and 1122. Since the UDP header has 8 bytes, we are left with 568 bytes. // To be even safer and make it round (and exactly one third of the usual // 1500) we use 500. MTU = 500 )
Variables ¶
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Functions ¶
This section is empty.
Types ¶
type CaptureConfig ¶
type CaptureConfig struct {
Filename string `yaml:"filename"`
}
CaptureConfig allows specifying configurations for capturing traffic in the pcapng format.
type FullDuplexUnreliableWire ¶
type FullDuplexUnreliableWire interface {
Send(ctx context.Context, payload []byte) (n int, err error)
Recv(ctx context.Context, payload []byte) (n int, err error)
Close() error
}
FullDuplexUnreliableWire represents a hypothetical guided medium where you can send and receive bytes at the same time. No guarantee is provided about the delivery/integrity.
func NewFullDuplexUnreliableWire ¶
func NewFullDuplexUnreliableWire( ctx context.Context, conf FullDuplexUnreliableWireConfig, ) (FullDuplexUnreliableWire, error)
NewFullDuplexUnreliableWire creates a FullDuplexUnreliableWire from config.
type FullDuplexUnreliableWireConfig ¶
type FullDuplexUnreliableWireConfig struct {
RecvUDPEndpoint string `yaml:"recvUDPEndpoint"`
SendUDPEndpoint string `yaml:"sendUDPEndpoint"`
Capture *CaptureConfig `yaml:"capture"`
MetricLabels struct {
StackName string `yaml:"stackName"`
} `yaml:"metricLabels"`
}
FullDuplexUnreliableWireConfig contains the UDP configs for the concrete implementation of FullDuplexUnreliableWire.
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