protocol

package

v0.0.0-...-63ff7ac Latest Latest Go to latest Published: Oct 21, 2021 License: CC0-1.0 Imports: 10 Imported by: 0

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Repository

github.com/V-H-R-Oliveira/simple-ping

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Documentation ¶

Index ¶

Constants
func ParseTimestamp(timestamp []byte) time.Time
type IcmpProto
- func NewIcmpProto() *IcmpProto
type IcmpReply
type IcmpRequest
- func NewIcmpRequest(dst net.IP) *IcmpRequest
- func (icmp *IcmpRequest) SendRequest(dstAddr [4]byte) *IcmpReply
- func (icmpReq *IcmpRequest) ToBytes() []byte
type IpProtoHeader
- func NewIPHeader(dstAddr net.IP) *IpProtoHeader
- func (ipProto *IpProtoHeader) ToBytes() []byte
type Statistics
- func NewStatistics() *Statistics

Constants ¶

View Source

const (
	DEFAULT_VERSION      = 4
	MIN_IP_HEADER_LENGTH = 5
	ICMP_PROTO           = 1
	ECHO_REQUEST         = 8
	NO_FRAGMENT          = 2
	MAX_TTL              = 255
	DEFAULT_TIMEOUT      = 2
)

Variables ¶

This section is empty.

Functions ¶

func ParseTimestamp ¶

func ParseTimestamp(timestamp []byte) time.Time

Types ¶

type IcmpProto ¶

type IcmpProto struct {
	Type           uint8
	Code           uint8
	Checksum       uint16
	Identifier     uint16
	SequenceNumber uint16
	Data           []byte
}

func NewIcmpProto ¶

func NewIcmpProto() *IcmpProto

func (*IcmpProto) ClearChecksum ¶

func (packet *IcmpProto) ClearChecksum()

func (*IcmpProto) ComputeChecksum ¶

func (packet *IcmpProto) ComputeChecksum()

func (*IcmpProto) SetSequenceNumber ¶

func (packet *IcmpProto) SetSequenceNumber(sequenceNumber uint16)

func (*IcmpProto) SetTimestamp ¶

func (packet *IcmpProto) SetTimestamp()

func (*IcmpProto) ToBytes ¶

func (packet *IcmpProto) ToBytes() []byte

type IcmpReply ¶

type IcmpReply struct {
	IpHeader *IpProtoHeader
	Reply    *IcmpProto
}

type IcmpRequest ¶

type IcmpRequest struct {
	IpHeader *IpProtoHeader
	Request  *IcmpProto
}

func NewIcmpRequest ¶

func NewIcmpRequest(dst net.IP) *IcmpRequest

func (*IcmpRequest) SendRequest ¶

func (icmp *IcmpRequest) SendRequest(dstAddr [4]byte) *IcmpReply

func (*IcmpRequest) ToBytes ¶

func (icmpReq *IcmpRequest) ToBytes() []byte

type IpProtoHeader ¶

type IpProtoHeader struct {
	Version        uint8
	IHL            uint8
	TypeOfService  uint8
	TotalLength    uint16
	Identifier     uint16
	Flags          uint16
	FragmentOffset uint16
	TTL            uint8
	Protocol       uint8
	Checksum       uint16
	SrcAddr        net.IP
	DstAddr        net.IP
}

func NewIPHeader ¶

func NewIPHeader(dstAddr net.IP) *IpProtoHeader

func (*IpProtoHeader) ToBytes ¶

func (ipProto *IpProtoHeader) ToBytes() []byte

type Statistics ¶

type Statistics struct {
	Received    int
	Transmitted int
	TotalTime   time.Duration
}

func NewStatistics ¶

func NewStatistics() *Statistics

func (*Statistics) IncrementReceived ¶

func (stats *Statistics) IncrementReceived()

func (*Statistics) IncrementTransmitted ¶

func (stats *Statistics) IncrementTransmitted()

func (*Statistics) PrettyStats ¶

func (stats *Statistics) PrettyStats(dstAddr string)

func (*Statistics) SetTotalTime ¶

func (stats *Statistics) SetTotalTime(startTime time.Time)

Source Files ¶

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