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Merge pull request #705 from Arceliar/bugfix

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Ygg-over-ygg bugfix
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Arceliar 2020-05-25 19:24:34 -05:00 committed by GitHub
commit ed3bf5ef07
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1 changed files with 14 additions and 0 deletions
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src/yggdrasil/tcp.go
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@ -25,6 +25,7 @@ import (
"golang.org/x/net/proxy" "golang.org/x/net/proxy"
"github.com/yggdrasil-network/yggdrasil-go/src/address"
"github.com/yggdrasil-network/yggdrasil-go/src/util" "github.com/yggdrasil-network/yggdrasil-go/src/util"
) )
@ -397,6 +398,19 @@ func (t *tcp) handler(sock net.Conn, incoming bool, options tcpOptions) {
local, _, _ = net.SplitHostPort(sock.LocalAddr().String()) local, _, _ = net.SplitHostPort(sock.LocalAddr().String())
remote, _, _ = net.SplitHostPort(sock.RemoteAddr().String()) remote, _, _ = net.SplitHostPort(sock.RemoteAddr().String())
} }
localIP := net.ParseIP(local)
if localIP = localIP.To16(); localIP != nil {
var laddr address.Address
var lsubnet address.Subnet
copy(laddr[:], localIP)
copy(lsubnet[:], localIP)
if laddr.IsValid() || lsubnet.IsValid() {
// The local address is with the network address/prefix range
// This would route ygg over ygg, which we don't want
t.link.core.log.Debugln("Dropping ygg-tunneled connection", local, remote)
return
}
}
force := net.ParseIP(strings.Split(remote, "%")[0]).IsLinkLocalUnicast() force := net.ParseIP(strings.Split(remote, "%")[0]).IsLinkLocalUnicast()
link, err := t.link.core.link.create(&stream, name, proto, local, remote, incoming, force, options.linkOptions) link, err := t.link.core.link.create(&stream, name, proto, local, remote, incoming, force, options.linkOptions)
if err != nil { if err != nil {