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wgengine/magicsock: log better with less spam on transition to stopped state 

Required a minor test update too, which now needs a private key to get far
enough to test the thing being tested.
This commit is contained in:
Brad Fitzpatrick 2020-07-27 10:19:05 -07:00
parent 69f3ceeb7c
commit fe68841dc7
2 changed files with 20 additions and 6 deletions
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23
wgengine/magicsock/magicsock.go
View File

@ -1788,13 +1788,16 @@ func (c *Conn) SetPrivateKey(privateKey wgcfg.PrivateKey) error {
if oldKey.IsZero() {
c.logf("magicsock: SetPrivateKey called (init)")
go c.ReSTUN("set-private-key")
} else if newKey.IsZero() {
c.logf("magicsock: SetPrivateKey called (zeroed)")
c.closeAllDerpLocked("zero-private-key")
} else {
c.logf("magicsock: SetPrivateKey called (changed")
c.logf("magicsock: SetPrivateKey called (changed)")
c.closeAllDerpLocked("new-private-key")
}
c.closeAllDerpLocked("new-private-key")
// Key changed. Close existing DERP connections and reconnect to home.
if c.myDerp != 0 {
if c.myDerp != 0 && !newKey.IsZero() {
c.logf("magicsock: private key changed, reconnecting to home derp-%d", c.myDerp)
c.goDerpConnect(c.myDerp)
}
@ -1844,7 +1847,9 @@ func (c *Conn) SetDERPMap(dm *tailcfg.DERPMap) {
return
}
go c.ReSTUN("derp-map-update")
if c.started {
go c.ReSTUN("derp-map-update")
}
}
func nodesEqual(x, y []*tailcfg.Node) bool {
@ -2152,6 +2157,10 @@ func (c *Conn) ReSTUN(why string) {
// raced with a shutdown.
return
}
if c.privateKey.IsZero() {
c.logf("magicsock: ReSTUN(%q) ignored; no private key", why)
return
}
if c.endpointsUpdateActive {
if c.wantEndpointsUpdate != why {
@ -2242,8 +2251,12 @@ func (c *Conn) Rebind() {
c.mu.Lock()
c.closeAllDerpLocked("rebind")
haveKey := !c.privateKey.IsZero()
c.mu.Unlock()
c.goDerpConnect(c.myDerp)
if haveKey {
c.goDerpConnect(c.myDerp)
}
c.resetAddrSetStates()
}

3
wgengine/magicsock/magicsock_test.go
View File

@ -215,8 +215,9 @@ func TestNewConn(t *testing.T) {
t.Fatal(err)
}
defer conn.Close()
conn.Start()
conn.SetDERPMap(stuntest.DERPMapOf(stunAddr.String()))
conn.SetPrivateKey(wgcfg.PrivateKey(key.NewPrivate()))
conn.Start()
go func() {
var pkt [64 << 10]byte