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debug messages for both incoming and outgoing SYNs

This commit is contained in:
Christian Ulrich 2020-10-08 18:13:30 +02:00
parent b0032c534c
commit 8bff4c79d9
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GPG Key ID: 8241BE099775A097
1 changed files with 2 additions and 1 deletions
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3
tcp_syni.nim
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@ -282,6 +282,7 @@ proc accept*(puncher: TcpSyniPuncher, srcPort: Port, dstIp: IpAddress,
tcpPortSrc: attempt.srcPort, tcpPortDst: dstPort, tcpPortSrc: attempt.srcPort, tcpPortDst: dstPort,
tcpSeqNumber: rand(uint32), tcpAckNumber: 0, tcpSeqNumber: rand(uint32), tcpAckNumber: 0,
tcpFlags: {SYN}, tcpWindowSize: 1452 * 10) tcpFlags: {SYN}, tcpWindowSize: 1452 * 10)
echo &"[{synOut.ipAddrSrc}:{synOut.tcpPortSrc} -> {synOut.ipAddrDst}:{synOut.tcpPortDst}, SEQ {synOut.tcpSeqNumber}] injecting outgoing SYN"
await rawFd.injectTcpPacket(synOut) await rawFd.injectTcpPacket(synOut)
for seqNum in attempt.seqNums: for seqNum in attempt.seqNums:
let synIn = IpPacket(protocol: tcp, ipAddrSrc: attempt.dstIp, let synIn = IpPacket(protocol: tcp, ipAddrSrc: attempt.dstIp,
@ -290,7 +291,7 @@ proc accept*(puncher: TcpSyniPuncher, srcPort: Port, dstIp: IpAddress,
tcpPortDst: attempt.srcPort, tcpPortDst: attempt.srcPort,
tcpSeqNumber: seqNum, tcpAckNumber: 0, tcpSeqNumber: seqNum, tcpAckNumber: 0,
tcpFlags: {SYN}, tcpWindowSize: 1452 * 10) tcpFlags: {SYN}, tcpWindowSize: 1452 * 10)
echo &"[{synIn.ipAddrSrc}:{synIn.tcpPortSrc} -> {synIn.ipAddrDst}:{synIn.tcpPortDst}, SEQ {synIn.tcpSeqNumber}] injecting SYN" echo &"[{synIn.ipAddrSrc}:{synIn.tcpPortSrc} -> {synIn.ipAddrDst}:{synIn.tcpPortDst}, SEQ {synIn.tcpSeqNumber}] injecting incoming SYN"
await rawFd.injectTcpPacket(synIn) await rawFd.injectTcpPacket(synIn)
closeSocket(rawFd) closeSocket(rawFd)
await attempt.future or sleepAsync(Timeout) await attempt.future or sleepAsync(Timeout)