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close on failed low-TTL connects too

This commit is contained in:
Christian Ulrich 2020-10-07 00:25:07 +02:00
parent 64cc41eb90
commit bec4c1b158
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GPG Key ID: 8241BE099775A097
1 changed files with 3 additions and 2 deletions
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5
tcp_syni.nim
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@ -227,8 +227,9 @@ proc connect*(puncher: TcpSyniPuncher, srcPort: Port, dstIp: IpAddress,
proc prepareAccept(attempt: AcceptAttempt) {.async.} = proc prepareAccept(attempt: AcceptAttempt) {.async.} =
for dstPort in attempt.dstPorts: for dstPort in attempt.dstPorts:
var sock: AsyncSocket
try: try:
let sock = newAsyncSocket() sock = newAsyncSocket()
sock.setSockOpt(OptReuseAddr, true) sock.setSockOpt(OptReuseAddr, true)
sock.getFd.setSockOptInt(IPPROTO_IP, IP_TTL, 2) sock.getFd.setSockOptInt(IPPROTO_IP, IP_TTL, 2)
sock.bindAddr(attempt.srcPort, $(attempt.srcIp)) sock.bindAddr(attempt.srcPort, $(attempt.srcIp))
@ -236,9 +237,9 @@ proc prepareAccept(attempt: AcceptAttempt) {.async.} =
await connectFuture or sleepAsync(Timeout) await connectFuture or sleepAsync(Timeout)
if connectFuture.finished(): if connectFuture.finished():
echo "connected during accept phase" echo "connected during accept phase"
sock.close()
except OSError: except OSError:
discard discard
sock.close()
proc doAccept(puncher: TcpSyniPuncher, srcIp: IpAddress, proc doAccept(puncher: TcpSyniPuncher, srcIp: IpAddress,
srcPort: Port) {.async.} = srcPort: Port) {.async.} =