gorawpacket

package module
v0.0.0-...-2009457 Latest Latest
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 Go to latest Published: Sep 4, 2014 License: BSD-3-Clause Imports: 9 Imported by: 0

README

gorawpacket

go raw packet read/write

Documentation

Index

Constants

View Source 
const DEFAULT_MTU = 1500
View Source 
const UDP_HDR_SIZE = 42

Variables

View Source 
var HwAddrBroadcast net.HardwareAddr
View Source 
var HwAddrZero net.HardwareAddr

Functions

This section is empty.

Types

type EthernetType 

type EthernetType uint16

EthernetType is an enumeration of ethernet type values, and acts as a decoder for any type it supports. 

const (
	// EthernetTypeLLC is not an actual ethernet type.  It is instead a
	// placeholder we use in Ethernet frames that use the 802.3 standard of
	// srcmac|dstmac|length|LLC instead of srcmac|dstmac|ethertype.
	EthernetTypeLLC                EthernetType = 0
	EthernetTypeIPv4               EthernetType = 0x0800
	EthernetTypeARP                EthernetType = 0x0806
	EthernetTypeIPv6               EthernetType = 0x86DD
	EthernetTypeCiscoDiscovery     EthernetType = 0x2000
	EthernetTypeNortelDiscovery    EthernetType = 0x01a2
	EthernetTypeDot1Q              EthernetType = 0x8100
	EthernetTypePPPoEDiscovery     EthernetType = 0x8863
	EthernetTypePPPoESession       EthernetType = 0x8864
	EthernetTypeMPLSUnicast        EthernetType = 0x8847
	EthernetTypeMPLSMulticast      EthernetType = 0x8848
	EthernetTypeEAPOL              EthernetType = 0x888e
	EthernetTypeLinkLayerDiscovery EthernetType = 0x88cc
	EthernetTypeEthernetCTP        EthernetType = 0x9000
)

type IPProtocol 

type IPProtocol uint8

IPProtocol is an enumeration of IP protocol values, and acts as a decoder for any type it supports. 

const (
	IPProtocolIPv6HopByHop IPProtocol = 0
	IPProtocolICMPv4       IPProtocol = 1
	IPProtocolIGMP         IPProtocol = 2
	IPProtocolTCP          IPProtocol = 6
	IPProtocolUDP          IPProtocol = 17
	IPProtocolRUDP         IPProtocol = 27
	IPProtocolIPv6         IPProtocol = 41
	IPProtocolIPv6Routing  IPProtocol = 43
	IPProtocolIPv6Fragment IPProtocol = 44
	IPProtocolGRE          IPProtocol = 47
	IPProtocolESP          IPProtocol = 50
	IPProtocolAH           IPProtocol = 51
	IPProtocolICMPv6       IPProtocol = 58
	IPProtocolNoNextHeader IPProtocol = 59
	IPProtocolIPIP         IPProtocol = 94
	IPProtocolEtherIP      IPProtocol = 97
	IPProtocolSCTP         IPProtocol = 132
	IPProtocolUDPLite      IPProtocol = 136
	IPProtocolMPLSInIP     IPProtocol = 137
)

type LinkType 

type LinkType uint8

LinkType is an enumeration of link types, and acts as a decoder for any link type it supports. 

const (
	// According to pcap-linktype(7).
	LinkTypeNull           LinkType = 0
	LinkTypeEthernet       LinkType = 1
	LinkTypeTokenRing      LinkType = 6
	LinkTypeArcNet         LinkType = 7
	LinkTypeSLIP           LinkType = 8
	LinkTypePPP            LinkType = 9
	LinkTypeFDDI           LinkType = 10
	LinkTypeATM_RFC1483    LinkType = 100
	LinkTypeRaw            LinkType = 101
	LinkTypePPP_HDLC       LinkType = 50
	LinkTypePPPEthernet    LinkType = 51
	LinkTypeC_HDLC         LinkType = 104
	LinkTypeIEEE802_11     LinkType = 105
	LinkTypeFRelay         LinkType = 107
	LinkTypeLoop           LinkType = 108
	LinkTypeLinuxSLL       LinkType = 113
	LinkTypeLTalk          LinkType = 104
	LinkTypePFLog          LinkType = 117
	LinkTypePrismHeader    LinkType = 119
	LinkTypeIPOverFC       LinkType = 122
	LinkTypeSunATM         LinkType = 123
	LinkTypeIEEE80211Radio LinkType = 127
	LinkTypeARCNetLinux    LinkType = 129
	LinkTypeLinuxIRDA      LinkType = 144
	LinkTypeLinuxLAPD      LinkType = 177
)

type PktConn 

type PktConn struct {
	// contains filtered or unexported fields
}

PktConn

func Dial 

func Dial(nic string, addr *RawPktAddr) (*PktConn, error)

Dial bind RawPktConn to nic for write

func Listen 

func Listen(nic string, addr *RawPktAddr) (*PktConn, error)

Listen bind RawPktConn to nic for read

func (*PktConn) Close 

func (pktConn *PktConn) Close()

Close

func (*PktConn) LocalAddr 

func (pktConn *PktConn) LocalAddr() *RawPktAddr

LocalAddr return RawPktAddr Tpl for reading

func (*PktConn) Read 

func (pktConn *PktConn) Read(data []byte) (int, error)

Read get ethernet frame from pktConn.Iface filte by writeTplFrame and remoteTplAddr

func (*PktConn) ReadFrom 

func (pktConn *PktConn) ReadFrom(data []byte, raddr *RawPktAddr) (int, error)

ReadFrom output ethernet frame of RawPktConn to pktConn.Iface filter by addr

func (*PktConn) ReadFromMsg 

func (pktConn *PktConn) ReadFromMsg(data []byte) (laddr *RawPktAddr, raddr *RawPktAddr, ioBytes int, err error)

ReadFromMsg output ethernet frame of RawPktConn to pktConn.Iface filter by addr

func (*PktConn) RemoteAddr 

func (pktConn *PktConn) RemoteAddr() *RawPktAddr

RemoteAddr return RawPktAddr Tpl for writing

func (*PktConn) SetLocalAddr 

func (pktConn *PktConn) SetLocalAddr(addr *RawPktAddr) error

SetLocalAddr set read/write local RawPktAddr

func (*PktConn) SetPromisc 

func (pktConn *PktConn) SetPromisc(flag bool) (oldflag bool, err error)

SetPromisc set PktConn iface to Promisc flag

func (*PktConn) SetReadTimeOut 

func (pktConn *PktConn) SetReadTimeOut(val int) int

SetReadTimeOut return old timeout

func (*PktConn) SetRemoteAddr 

func (pktConn *PktConn) SetRemoteAddr(addr *RawPktAddr) error

SetRemoteAddr

func (*PktConn) SetTimeOut 

func (pktConn *PktConn) SetTimeOut(val int) (int, int)

SetTimeOut return old timeout of read/write

func (*PktConn) SetWriteTimeOut 

func (pktConn *PktConn) SetWriteTimeOut(val int) int

SetWriteTimeOut return old timeout

func (*PktConn) Write 

func (pktConn *PktConn) Write(data []byte) (int, error)

Write output data to Iface using writeTplFrame and remoteTplAddr

func (*PktConn) WriteTo 

func (pktConn *PktConn) WriteTo(data []byte, raddr *RawPktAddr) (int, error)

WriteTo output ethernet frame of RawPktConn to pktConn.Iface using writeTplFrame and remoteTplAddr

type RawPktAddr 

type RawPktAddr struct {
	HardwareAddr net.HardwareAddr // mac address of packet, eg., ff:ff:ff:ff:ff:ff / 00:e0:4c:68:04:1d
	IPAddr       net.IP           // ip of packet, eg., 255.255.255.255 / 8.8.8.8
	IPPort       int              // port of packet, eg., 19818 / 53
}

RawPktAddr 

var RawPktAddrBroadcast *RawPktAddr
var RawPktAddrZero *RawPktAddr

func NewPktAddr 

func NewPktAddr() *RawPktAddr

func ResolveRawPktAddr 

func ResolveRawPktAddr(mac, addr, port string) (pktAddr *RawPktAddr, err error)

ResolveRawPktAddr parse strings

func (*RawPktAddr) Clone 

func (pktAddr *RawPktAddr) Clone() *RawPktAddr

Clone

func (*RawPktAddr) Copy 

func (pktAddr *RawPktAddr) Copy(src *RawPktAddr)

Copy

func (*RawPktAddr) Match 

func (pktAddr *RawPktAddr) Match(addr *RawPktAddr) bool

Match compare two RawPktAddr, check on no-zero local/remote HwAddr/IP/Port return true for all match nil match to all

func (*RawPktAddr) Reset 

func (pktAddr *RawPktAddr) Reset()

Reset

func (*RawPktAddr) String 

func (pktAddr *RawPktAddr) String() (str string)

String

type RawPktConn 

type RawPktConn struct {
	// contains filtered or unexported fields
}

RawPktConn

func Open 

func Open(nic string) (*RawPktConn, error)

Open bind RawPktConn to rawPktConn.iface

return *RawPktConn and error

func (*RawPktConn) Close 

func (rawPktConn *RawPktConn) Close()

Close

func (*RawPktConn) ReadFromAddr 

func (rawPktConn *RawPktConn) ReadFromAddr(lfaddr *RawPktAddr, rfaddr *RawPktAddr, payload []byte) (laddr *RawPktAddr, raddr *RawPktAddr, ioBytes int, err error)

ReadFromAddr encode and write rawPktFrame full ethernet frame lfaddr/rfaddr used for package filter, nil for match all return local/remote RawPktAddr and error

func (*RawPktConn) SetPromisc 

func (rawPktConn *RawPktConn) SetPromisc(flag bool) (oldflag bool, err error)

SetPromisc set rawPktConn iface to Promisc flag

func (*RawPktConn) SetReadTimeOut 

func (rawPktConn *RawPktConn) SetReadTimeOut(val int) int

SetReadTimeOut return old timeout

func (*RawPktConn) SetTimeOut 

func (rawPktConn *RawPktConn) SetTimeOut(val int) (int, int)

SetTimeOut return old timeout

func (*RawPktConn) SetWriteTimeOut 

func (rawPktConn *RawPktConn) SetWriteTimeOut(val int) int

SetWriteTimeOut return old timeout

func (*RawPktConn) WriteToAddr 

func (rawPktConn *RawPktConn) WriteToAddr(laddr *RawPktAddr, raddr *RawPktAddr, payload []byte) (int, error)

WriteToAddr encode and write rawPktFrame full ethernet frame laddr/raddr should no be nil return bytes out and error

Source Files

View all Source files

Directories

Path Synopsis
examples
broker
transfer

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