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https://github.com/yggdrasil-network/yggdrasil-go.git
synced 2024-11-23 18:15:24 +00:00
fix merge conflict
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commit
6ef0e47632
@ -117,6 +117,8 @@ func bubbleUpTo(sets []keySet, num int) []keySet {
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var tmp = sets[i]
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sets[i] = sets[i+1]
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sets[i+1] = tmp
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} else {
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break
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}
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}
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return sets
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@ -554,17 +554,30 @@ func (sinfo *sessionInfo) doSend(bs []byte) {
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}
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// code isn't multithreaded so appending to this is safe
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coords := sinfo.coords
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// Read IPv6 flowlabel field (20 bits).
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// Assumes packet at least contains IPv6 header.
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flowkey := uint64(bs[1]&0x0f)<<16 | uint64(bs[2])<<8 | uint64(bs[3])
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// Check if the flowlabel was specified
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if flowkey == 0 {
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// Does the packet meet the minimum UDP packet size? (others are bigger)
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if len(bs) >= 48 {
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// Is the protocol TCP, UDP, SCTP?
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// Work out the flowkey - this is used to determine which switch queue
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// traffic will be pushed to in the event of congestion
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var flowkey uint64
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// Get the IP protocol version from the packet
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switch bs[0] & 0xf0 {
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case 0x40: // IPv4 packet
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// Check the packet meets minimum UDP packet length
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if len(bs) >= 24 {
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// Is the protocol TCP, UDP or SCTP?
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if bs[9] == 0x06 || bs[9] == 0x11 || bs[9] == 0x84 {
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ihl := bs[0] & 0x0f * 4 // Header length
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flowkey = uint64(bs[9])<<32 /* proto */ |
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uint64(bs[ihl+0])<<24 | uint64(bs[ihl+1])<<16 /* sport */ |
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uint64(bs[ihl+2])<<8 | uint64(bs[ihl+3]) /* dport */
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}
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}
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case 0x60: // IPv6 packet
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// Check if the flowlabel was specified in the packet header
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flowkey = uint64(bs[1]&0x0f)<<16 | uint64(bs[2])<<8 | uint64(bs[3])
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// If the flowlabel isn't present, make protokey from proto | sport | dport
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// if the packet meets minimum UDP packet length
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if flowkey == 0 && len(bs) >= 48 {
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// Is the protocol TCP, UDP or SCTP?
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if bs[6] == 0x06 || bs[6] == 0x11 || bs[6] == 0x84 {
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// if flowlabel was unspecified (0), try to use known protocols' ports
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// protokey: proto | sport | dport
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flowkey = uint64(bs[6])<<32 /* proto */ |
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uint64(bs[40])<<24 | uint64(bs[41])<<16 /* sport */ |
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uint64(bs[42])<<8 | uint64(bs[43]) /* dport */
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@ -612,5 +625,8 @@ func (sinfo *sessionInfo) doRecv(p *wire_trafficPacket) {
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sinfo.updateNonce(&p.Nonce)
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sinfo.time = time.Now()
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sinfo.bytesRecvd += uint64(len(bs))
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sinfo.core.router.toRecv <- router_recvPacket{bs, sinfo}
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select {
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case sinfo.core.router.toRecv <- router_recvPacket{bs, sinfo}:
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default: // avoid deadlocks, maybe do this somewhere else?...
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}
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}
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