mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-11-10 05:10:26 +00:00
remove old switch anc/hop/res code
This commit is contained in:
Arceliar
parent
6811759fc9
commit
5fb33da3a2
@ -99,10 +99,6 @@ type peer struct {
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out func([]byte)
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core *Core
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port switchPort
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msgAnc *msgAnnounce
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msgHops []*msgHop
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myMsg *switchMessage
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mySigs []sigInfo
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// This is used to limit how often we perform expensive operations
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// Specifically, processing switch messages, signing, and verifying sigs
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// Resets at the start of each tick
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@ -175,8 +171,6 @@ func (ps *peers) removePeer(port switchPort) {
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func (p *peer) linkLoop() {
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ticker := time.NewTicker(time.Second)
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defer ticker.Stop()
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var counter uint8
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var lastRSeq uint64
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for {
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select {
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case packet, ok := <-p.linkIn:
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@ -193,27 +187,8 @@ func (p *peer) linkLoop() {
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if p.port == 0 {
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continue
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} // Don't send announces on selfInterface
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p.myMsg, p.mySigs = p.core.switchTable.createMessage(p.port)
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var update bool
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switch {
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case p.msgAnc == nil:
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update = true
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case lastRSeq != p.msgAnc.Seq:
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update = true
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case p.msgAnc.Rseq != p.myMsg.seq:
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update = true
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case counter%4 == 0:
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update = true
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}
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if true || update {
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// TODO change update logic, the new switchMsg works differently
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if p.msgAnc != nil {
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lastRSeq = p.msgAnc.Seq
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}
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// TODO change update logic, the new switchMsg works differently, we only need to send if something changes
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p.sendSwitchMsg()
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//p.sendSwitchAnnounce()
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}
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counter = (counter + 1) % 4
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}
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}
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}
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@ -303,186 +278,10 @@ func (p *peer) handleLinkTraffic(bs []byte) {
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switch pType {
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case wire_SwitchMsg:
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p.handleSwitchMsg(payload)
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case wire_SwitchAnnounce:
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p.handleSwitchAnnounce(payload)
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case wire_SwitchHopRequest:
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p.handleSwitchHopRequest(payload)
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case wire_SwitchHop:
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p.handleSwitchHop(payload)
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default: // TODO?...
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}
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}
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func (p *peer) handleSwitchAnnounce(packet []byte) {
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//p.core.log.Println("DEBUG: handleSwitchAnnounce")
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anc := msgAnnounce{}
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//err := wire_decode_struct(packet, &anc)
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//if err != nil { return }
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if !anc.decode(packet) {
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return
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}
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//if p.msgAnc != nil && anc.Seq != p.msgAnc.Seq { p.msgHops = nil }
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if p.msgAnc == nil ||
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anc.Root != p.msgAnc.Root ||
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anc.Tstamp != p.msgAnc.Tstamp ||
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anc.Seq != p.msgAnc.Seq {
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p.msgHops = nil
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}
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p.msgAnc = &anc
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p.processSwitchMessage()
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p.lastAnc = time.Now()
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}
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func (p *peer) requestHop(hop uint64) {
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//p.core.log.Println("DEBUG requestHop")
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req := msgHopReq{}
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req.Root = p.msgAnc.Root
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req.Tstamp = p.msgAnc.Tstamp
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req.Seq = p.msgAnc.Seq
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req.Hop = hop
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packet := req.encode()
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p.sendLinkPacket(packet)
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}
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func (p *peer) handleSwitchHopRequest(packet []byte) {
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//p.core.log.Println("DEBUG: handleSwitchHopRequest")
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if p.throttle > peer_Throttle {
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return
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}
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if p.myMsg == nil {
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return
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}
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req := msgHopReq{}
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if !req.decode(packet) {
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return
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}
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if req.Root != p.myMsg.locator.root {
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return
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}
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if req.Tstamp != p.myMsg.locator.tstamp {
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return
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}
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if req.Seq != p.myMsg.seq {
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return
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}
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if uint64(len(p.myMsg.locator.coords)) <= req.Hop {
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return
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}
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res := msgHop{}
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res.Root = p.myMsg.locator.root
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res.Tstamp = p.myMsg.locator.tstamp
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res.Seq = p.myMsg.seq
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res.Hop = req.Hop
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res.Port = p.myMsg.locator.coords[res.Hop]
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sinfo := p.getSig(res.Hop)
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//p.core.log.Println("DEBUG sig:", sinfo)
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res.Next = sinfo.next
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res.Sig = sinfo.sig
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packet = res.encode()
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p.sendLinkPacket(packet)
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}
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func (p *peer) handleSwitchHop(packet []byte) {
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//p.core.log.Println("DEBUG: handleSwitchHop")
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if p.throttle > peer_Throttle {
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return
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}
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if p.msgAnc == nil {
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return
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}
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res := msgHop{}
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if !res.decode(packet) {
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return
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}
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if res.Root != p.msgAnc.Root {
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return
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}
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if res.Tstamp != p.msgAnc.Tstamp {
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return
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}
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if res.Seq != p.msgAnc.Seq {
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return
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}
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if res.Hop != uint64(len(p.msgHops)) {
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return
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} // always process in order
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loc := switchLocator{coords: make([]switchPort, 0, len(p.msgHops)+1)}
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loc.root = res.Root
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loc.tstamp = res.Tstamp
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for _, hop := range p.msgHops {
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loc.coords = append(loc.coords, hop.Port)
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}
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loc.coords = append(loc.coords, res.Port)
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thisHopKey := &res.Root
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if res.Hop != 0 {
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thisHopKey = &p.msgHops[res.Hop-1].Next
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}
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bs := getBytesForSig(&res.Next, &loc)
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if p.core.sigs.check(thisHopKey, &res.Sig, bs) {
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p.msgHops = append(p.msgHops, &res)
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p.processSwitchMessage()
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} else {
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p.throttle++
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}
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}
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func (p *peer) processSwitchMessage() {
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//p.core.log.Println("DEBUG: processSwitchMessage")
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if p.throttle > peer_Throttle {
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return
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}
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if p.msgAnc == nil {
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return
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}
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if uint64(len(p.msgHops)) < p.msgAnc.Len {
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p.requestHop(uint64(len(p.msgHops)))
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return
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}
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p.throttle++
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if p.msgAnc.Len != uint64(len(p.msgHops)) {
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return
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}
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msg := switchMessage{}
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coords := make([]switchPort, 0, len(p.msgHops))
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sigs := make([]sigInfo, 0, len(p.msgHops))
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for idx, hop := range p.msgHops {
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// Consistency checks, should be redundant (already checked these...)
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if hop.Root != p.msgAnc.Root {
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return
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}
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if hop.Tstamp != p.msgAnc.Tstamp {
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return
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}
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if hop.Seq != p.msgAnc.Seq {
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return
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}
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if hop.Hop != uint64(idx) {
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return
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}
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coords = append(coords, hop.Port)
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sigs = append(sigs, sigInfo{next: hop.Next, sig: hop.Sig})
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}
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msg.from = p.sig
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msg.locator.root = p.msgAnc.Root
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msg.locator.tstamp = p.msgAnc.Tstamp
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msg.locator.coords = coords
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msg.seq = p.msgAnc.Seq
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//msg.RSeq = p.msgAnc.RSeq
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//msg.Degree = p.msgAnc.Deg
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p.core.switchTable.handleMessage(&msg, p.port, sigs)
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if len(coords) == 0 {
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return
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}
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// Pass a mesage to the dht informing it that this peer (still) exists
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l := msg.locator
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l.coords = l.coords[:len(l.coords)-1]
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dinfo := dhtInfo{
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key: p.box,
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coords: l.getCoords(),
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}
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p.core.dht.peers <- &dinfo
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p.core.log.Println("DEBUG: peers<-&dhtInfo", dinfo, p.box, msg)
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}
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func (p *peer) sendSwitchMsg() {
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info, sigs := p.core.switchTable.createMessage(p.port)
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var msg switchMsg
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@ -549,34 +348,6 @@ func (p *peer) handleSwitchMsg(packet []byte) {
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p.core.dht.peers <- &dinfo
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}
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func (p *peer) sendSwitchAnnounce() {
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anc := msgAnnounce{}
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anc.Root = p.myMsg.locator.root
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anc.Tstamp = p.myMsg.locator.tstamp
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anc.Seq = p.myMsg.seq
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anc.Len = uint64(len(p.myMsg.locator.coords))
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//anc.Deg = p.myMsg.Degree
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if p.msgAnc != nil {
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anc.Rseq = p.msgAnc.Seq
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}
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packet := anc.encode()
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p.sendLinkPacket(packet)
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}
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func (p *peer) getSig(hop uint64) sigInfo {
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//p.core.log.Println("DEBUG getSig:", len(p.mySigs), hop)
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if hop < uint64(len(p.mySigs)) {
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return p.mySigs[hop]
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}
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bs := getBytesForSig(&p.sig, &p.myMsg.locator)
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sig := sigInfo{}
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sig.next = p.sig
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sig.sig = *sign(&p.core.sigPriv, bs)
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p.mySigs = append(p.mySigs, sig)
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//p.core.log.Println("DEBUG sig bs:", bs)
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return sig
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}
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func getBytesForSig(next *sigPubKey, loc *switchLocator) []byte {
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//bs, err := wire_encode_locator(loc)
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//if err != nil { panic(err) }
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@ -13,9 +13,6 @@ const (
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wire_ProtocolTraffic // protocol traffic, pub keys for crypto
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wire_LinkProtocolTraffic // link proto traffic, pub keys for crypto
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wire_SwitchMsg // inside link protocol traffic header
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wire_SwitchAnnounce // inside protocol traffic header
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wire_SwitchHopRequest // inside protocol traffic header
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wire_SwitchHop // inside protocol traffic header
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wire_SessionPing // inside protocol traffic header
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wire_SessionPong // inside protocol traffic header
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wire_DHTLookupRequest // inside protocol traffic header
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@ -173,136 +170,8 @@ func (m *switchMsg) decode(bs []byte) bool {
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////////////////////////////////////////////////////////////////////////////////
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// Announces that we can send parts of a Message with a particular seq
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type msgAnnounce struct {
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Root sigPubKey
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Tstamp int64
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Seq uint64
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Len uint64
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//Deg uint64
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Rseq uint64
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}
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func (m *msgAnnounce) encode() []byte {
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bs := wire_encode_uint64(wire_SwitchAnnounce)
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bs = append(bs, m.Root[:]...)
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bs = append(bs, wire_encode_uint64(wire_intToUint(m.Tstamp))...)
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bs = append(bs, wire_encode_uint64(m.Seq)...)
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bs = append(bs, wire_encode_uint64(m.Len)...)
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bs = append(bs, wire_encode_uint64(m.Rseq)...)
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return bs
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}
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func (m *msgAnnounce) decode(bs []byte) bool {
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var pType uint64
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var tstamp uint64
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switch {
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case !wire_chop_uint64(&pType, &bs):
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return false
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case pType != wire_SwitchAnnounce:
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return false
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case !wire_chop_slice(m.Root[:], &bs):
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return false
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case !wire_chop_uint64(&tstamp, &bs):
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return false
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case !wire_chop_uint64(&m.Seq, &bs):
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return false
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case !wire_chop_uint64(&m.Len, &bs):
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return false
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case !wire_chop_uint64(&m.Rseq, &bs):
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return false
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}
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m.Tstamp = wire_intFromUint(tstamp)
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return true
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}
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type msgHopReq struct {
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Root sigPubKey
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Tstamp int64
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Seq uint64
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Hop uint64
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}
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func (m *msgHopReq) encode() []byte {
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bs := wire_encode_uint64(wire_SwitchHopRequest)
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bs = append(bs, m.Root[:]...)
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bs = append(bs, wire_encode_uint64(wire_intToUint(m.Tstamp))...)
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bs = append(bs, wire_encode_uint64(m.Seq)...)
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bs = append(bs, wire_encode_uint64(m.Hop)...)
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return bs
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}
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func (m *msgHopReq) decode(bs []byte) bool {
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var pType uint64
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var tstamp uint64
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switch {
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case !wire_chop_uint64(&pType, &bs):
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return false
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case pType != wire_SwitchHopRequest:
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return false
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case !wire_chop_slice(m.Root[:], &bs):
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return false
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case !wire_chop_uint64(&tstamp, &bs):
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return false
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case !wire_chop_uint64(&m.Seq, &bs):
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return false
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case !wire_chop_uint64(&m.Hop, &bs):
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return false
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}
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m.Tstamp = wire_intFromUint(tstamp)
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return true
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}
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type msgHop struct {
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Root sigPubKey
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Tstamp int64
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Seq uint64
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Hop uint64
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Port switchPort
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Next sigPubKey
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Sig sigBytes
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}
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func (m *msgHop) encode() []byte {
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bs := wire_encode_uint64(wire_SwitchHop)
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bs = append(bs, m.Root[:]...)
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bs = append(bs, wire_encode_uint64(wire_intToUint(m.Tstamp))...)
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bs = append(bs, wire_encode_uint64(m.Seq)...)
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bs = append(bs, wire_encode_uint64(m.Hop)...)
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bs = append(bs, wire_encode_uint64(uint64(m.Port))...)
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bs = append(bs, m.Next[:]...)
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bs = append(bs, m.Sig[:]...)
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return bs
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}
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func (m *msgHop) decode(bs []byte) bool {
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var pType uint64
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var tstamp uint64
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switch {
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case !wire_chop_uint64(&pType, &bs):
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return false
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case pType != wire_SwitchHop:
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return false
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case !wire_chop_slice(m.Root[:], &bs):
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return false
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case !wire_chop_uint64(&tstamp, &bs):
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return false
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case !wire_chop_uint64(&m.Seq, &bs):
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return false
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case !wire_chop_uint64(&m.Hop, &bs):
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return false
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case !wire_chop_uint64((*uint64)(&m.Port), &bs):
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return false
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case !wire_chop_slice(m.Next[:], &bs):
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return false
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case !wire_chop_slice(m.Sig[:], &bs):
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return false
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}
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m.Tstamp = wire_intFromUint(tstamp)
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return true
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}
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// Format used to check signatures only, so no need to also support decoding
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// TODO something else for signatures
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func wire_encode_locator(loc *switchLocator) []byte {
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coords := wire_encode_coords(loc.getCoords())
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var bs []byte
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