Documentation
¶
Index ¶
- Constants
- func ICMPReceiver(done <-chan struct{}, af string, srcAddr net.IP) (chan interface{}, error)
- func Resolver(input chan interface{}) (chan interface{}, error)
- func TCPReceiver(done <-chan struct{}, af, targetAddr string, srcAddr *net.IP, ...) (chan interface{}, error)
- type ICMPResponse
- type Probe
- type TCPHeader
- type TCPResponse
Constants ¶
View Source
const ( FIN = 1 << 0 SYN = 1 << 1 RST = 1 << 2 PSH = 1 << 3 ACK = 1 << 4 URG = 1 << 5 )
TCP flags
Variables ¶
This section is empty.
Functions ¶
func ICMPReceiver ¶
ICMPReceiver runs on its own collecting ICMP responses until its explicitly told to stop
func TCPReceiver ¶
func TCPReceiver(done <-chan struct{}, af, targetAddr string, srcAddr *net.IP,
probePortStart, probePortEnd, targetPort, maxTTL int) (chan interface{}, error)
TCPReceiver Feeds on TCP RST messages we receive from the end host; we use lots of parameters to check if the incoming packet is actually a response to our probe. We create TCPResponse structs and emit them on the output channel
Types ¶
type ICMPResponse ¶
type ICMPResponse struct {
Probe
// contains filtered or unexported fields
}
type TCPHeader ¶
type TCPHeader struct {
Source uint16
Destination uint16
SeqNum uint32
AckNum uint32
DataOffset uint8 // 4 bits
Reserved uint8 // 6 bits
Flags uint8 // 6 bits
Window uint16
Checksum uint16
Urgent uint16
}
TCPHeader defines the TCP header struct
type TCPResponse ¶
type TCPResponse struct {
Probe
// contains filtered or unexported fields
}
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