williamfhe / godivert Goto Github PK
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License: GNU Lesser General Public License v3.0
Bindings for WinDivert in Go
License: GNU Lesser General Public License v3.0
When I was using binding. I got this
goroutine 20 [running]:
github.com/williamfhe/godivert/header.NewTCPHeader(...)
C:/Users/Blueshark-JF/go/src/github.com/williamfhe/godivert/header/tcp.go:16
github.com/williamfhe/godivert.(*Packet).ParseHeaders(0xc000099b60)
C:/Users/Blueshark-JF/go/src/github.com/williamfhe/godivert/packet.go:42 +0x5a2
github.com/williamfhe/godivert.(*Packet).VerifyParsed(0xc000099b60)
C:/Users/Blueshark-JF/go/src/github.com/williamfhe/godivert/packet.go:187 +0x47
github.com/williamfhe/godivert.(*Packet).DstIP(0xc000099b60, 0x2, 0x2, 0x7)
C:/Users/Blueshark-JF/go/src/github.com/williamfhe/godivert/packet.go:102 +0x32
main.checkPacket(0xc000052610, 0xc0000980c0)
C:/Users/Blueshark-JF/go/src/vtap/old2.go:75 +0x25f
created by main.NewProxy
C:/Users/Blueshark-JF/go/src/vtap/old2.go:319 +0xff
exit status 2
I found out when I was following the mistake, in github.com\williamfhe\godivert\header
func NewTCPHeader(raw []byte) *TCPHeader {
hdrLen := raw[12] >> 2
return &TCPHeader{
Raw: raw[:hdrLen],
}
}
I think maybe the following code will be more accurate
(packet.Raw[ipHeaderLenght+12]&0xF>>4) * 5
winDivert, err := godivert.NewWinDivertHandle("true")
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