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Fix source address selection

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This commit is contained in:
Neil Alexander 2019-01-17 23:06:59 +00:00
parent 2219d96df1
commit c839012580
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GPG Key ID: A02A2019A2BB0944
1 changed files with 20 additions and 8 deletions
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18
src/yggdrasil/tcp.go
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@ -245,8 +245,21 @@ func (iface *tcpInterface) call(saddr string, socksaddr *string, sintf string) {
if err != nil {
continue
}
if (src.To4() != nil) == (dst.IP.To4() != nil) {
if addrindex == len(addrs)-1 || src.IsGlobalUnicast() {
if src.Equal(dst.IP) {
continue
}
if !src.IsGlobalUnicast() && !src.IsLinkLocalUnicast() {
continue
}
bothglobal := src.IsGlobalUnicast() == dst.IP.IsGlobalUnicast()
bothlinklocal := src.IsLinkLocalUnicast() == dst.IP.IsLinkLocalUnicast()
if !bothglobal && !bothlinklocal {
continue
}
if (src.To4() != nil) != (dst.IP.To4() != nil) {
continue
}
if bothglobal || bothlinklocal || addrindex == len(addrs)-1 {
dialer.LocalAddr = &net.TCPAddr{
IP: src,
Port: 0,
@ -255,7 +268,6 @@ func (iface *tcpInterface) call(saddr string, socksaddr *string, sintf string) {
break
}
}
}
if dialer.LocalAddr == nil {
return
}