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let the peer's linkLoop call close if the peer receives no announcements for too long

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This commit is contained in:
Arceliar 2018-05-06 17:17:12 -05:00
parent 6026e0a014
commit 80f893aac3
2 changed files with 38 additions and 31 deletions
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18
src/yggdrasil/peer.go
View File

@ -82,6 +82,8 @@ type peer struct {
throttle uint8 throttle uint8
// Called when a peer is removed, to close the underlying connection, or via admin api // Called when a peer is removed, to close the underlying connection, or via admin api
close func() close func()
// To allow the peer to call close if idle for too long
lastAnc time.Time
} }
const peer_Throttle = 1 const peer_Throttle = 1
@ -106,13 +108,10 @@ func (p *peer) updateBandwidth(bytes int, duration time.Duration) {
func (ps *peers) newPeer(box *boxPubKey, func (ps *peers) newPeer(box *boxPubKey,
sig *sigPubKey) *peer { sig *sigPubKey) *peer {
//in <-chan []byte,
//out chan<- []byte) *peer {
p := peer{box: *box, p := peer{box: *box,
sig: *sig, sig: *sig,
shared: *getSharedKey(&ps.core.boxPriv, box), shared: *getSharedKey(&ps.core.boxPriv, box),
//in: in, lastAnc: time.Now(),
//out: out,
core: ps.core} core: ps.core}
ps.mutex.Lock() ps.mutex.Lock()
defer ps.mutex.Unlock() defer ps.mutex.Unlock()
@ -165,7 +164,10 @@ func (p *peer) linkLoop(in <-chan []byte) {
} }
p.handleLinkTraffic(packet) p.handleLinkTraffic(packet)
case <-ticker.C: case <-ticker.C:
{ if time.Since(p.lastAnc) > 16*time.Second && p.close != nil {
// Seems to have timed out, try to trigger a close
p.close()
}
p.throttle = 0 p.throttle = 0
if p.port == 0 { if p.port == 0 {
continue continue
@ -191,7 +193,6 @@ func (p *peer) linkLoop(in <-chan []byte) {
counter = (counter + 1) % 4 counter = (counter + 1) % 4
} }
} }
}
} }
func (p *peer) handlePacket(packet []byte, linkIn chan<- []byte) { func (p *peer) handlePacket(packet []byte, linkIn chan<- []byte) {
@ -217,6 +218,10 @@ func (p *peer) handlePacket(packet []byte, linkIn chan<- []byte) {
} }
func (p *peer) handleTraffic(packet []byte, pTypeLen int) { func (p *peer) handleTraffic(packet []byte, pTypeLen int) {
if p.msgAnc == nil {
// Drop traffic until the peer manages to send us at least one anc
return
}
ttl, ttlLen := wire_decode_uint64(packet[pTypeLen:]) ttl, ttlLen := wire_decode_uint64(packet[pTypeLen:])
ttlBegin := pTypeLen ttlBegin := pTypeLen
ttlEnd := pTypeLen + ttlLen ttlEnd := pTypeLen + ttlLen
@ -299,6 +304,7 @@ func (p *peer) handleSwitchAnnounce(packet []byte) {
} }
p.msgAnc = &anc p.msgAnc = &anc
p.processSwitchMessage() p.processSwitchMessage()
p.lastAnc = time.Now()
} }
func (p *peer) requestHop(hop uint64) { func (p *peer) requestHop(hop uint64) {

1
yggdrasil.go
View File

@ -104,6 +104,7 @@ func generateConfig(isAutoconf bool) *nodeConfig {
cfg.SigPub = hex.EncodeToString(spub[:]) cfg.SigPub = hex.EncodeToString(spub[:])
cfg.SigPriv = hex.EncodeToString(spriv[:]) cfg.SigPriv = hex.EncodeToString(spriv[:])
cfg.Peers = []string{} cfg.Peers = []string{}
cfg.PeerBoxPubs = []string{}
cfg.Multicast = true cfg.Multicast = true
cfg.LinkLocal = "" cfg.LinkLocal = ""
cfg.IfName = core.DEBUG_GetTUNDefaultIfName() cfg.IfName = core.DEBUG_GetTUNDefaultIfName()