cwinfo/yggdrasil-go
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Merge pull request #580 from Arceliar/bugfix

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fix incorrectly held mutex in ckr getPublicKeyForAddress
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Neil Alexander 2019-10-21 13:39:23 +01:00 committed by GitHub
commit 4efc32c121
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1 changed files with 1 additions and 2 deletions
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src/tuntap/ckr.go
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@ -263,7 +263,6 @@ func (c *cryptokey) addRemoteSubnet(cidr string, dest string) error {
// length specified in bytes) from the crypto-key routing table. An error is // length specified in bytes) from the crypto-key routing table. An error is
// returned if the address is not suitable or no route was found. // returned if the address is not suitable or no route was found.
func (c *cryptokey) getPublicKeyForAddress(addr address.Address, addrlen int) (crypto.BoxPubKey, error) { func (c *cryptokey) getPublicKeyForAddress(addr address.Address, addrlen int) (crypto.BoxPubKey, error) {
c.mutexcaches.RLock()
// Check if the address is a valid Yggdrasil address - if so it // Check if the address is a valid Yggdrasil address - if so it
// is exempt from all CKR checking // is exempt from all CKR checking
@ -285,11 +284,11 @@ func (c *cryptokey) getPublicKeyForAddress(addr address.Address, addrlen int) (c
} }
// Check if there's a cache entry for this addr // Check if there's a cache entry for this addr
c.mutexcaches.RLock()
if route, ok := (*routingcache)[addr]; ok { if route, ok := (*routingcache)[addr]; ok {
c.mutexcaches.RUnlock() c.mutexcaches.RUnlock()
return route.destination, nil return route.destination, nil
} }
c.mutexcaches.RUnlock() c.mutexcaches.RUnlock()
c.mutexremotes.RLock() c.mutexremotes.RLock()