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types/key: export constants for key size, not a method.

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Signed-off-by: David Anderson <danderson@tailscale.com>
This commit is contained in:
David Anderson
2021-10-29 17:35:51 -07:00
parent 6422789ea0
commit 84c3a09a8d
6 changed files with 17 additions and 21 deletions
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4
wgengine/magicsock/magicsock.go
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@@ -1798,7 +1798,7 @@ func (c *Conn) sendDiscoMessage(dst netaddr.IPPort, dstKey tailcfg.NodeKey, dstD
// it was received from at the DERP layer. derpNodeSrc is zero when received
// over UDP.
func (c *Conn) handleDiscoMessage(msg []byte, src netaddr.IPPort, derpNodeSrc tailcfg.NodeKey) (isDiscoMsg bool) {
headerLen := len(disco.Magic) + key.DiscoPublic{}.RawLen()
const headerLen = len(disco.Magic) + key.DiscoPublicRawLen
if len(msg) < headerLen || string(msg[:len(disco.Magic)]) != disco.Magic {
return false
}
@@ -1809,7 +1809,7 @@ func (c *Conn) handleDiscoMessage(msg []byte, src netaddr.IPPort, derpNodeSrc ta
// Use naked returns for all following paths.
isDiscoMsg = true
sender := key.DiscoPublicFromRaw32(mem.B(msg[len(disco.Magic) : len(disco.Magic)+key.DiscoPublic{}.RawLen()]))
sender := key.DiscoPublicFromRaw32(mem.B(msg[len(disco.Magic):headerLen]))
c.mu.Lock()
defer c.mu.Unlock()