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Update source address selection when sintf specified

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This commit is contained in:
Neil Alexander 2019-01-16 14:52:27 +00:00
parent c3bd3bd140
commit 8baf593b62
No known key found for this signature in database
GPG Key ID: A02A2019A2BB0944
1 changed files with 18 additions and 15 deletions
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33
src/yggdrasil/tcp.go
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@ -230,35 +230,38 @@ func (iface *tcpInterface) call(saddr string, socksaddr *string, sintf string) {
ief, err := net.InterfaceByName(sintf)
if err != nil {
return
} else {
if ief.Flags&net.FlagUp == 0 {
}
if ief.Flags&net.FlagUp == 0 {
return
}
addrs, err := ief.Addrs()
if err == nil {
dst, err := net.ResolveTCPAddr("tcp", saddr)
if err != nil {
return
}
addrs, err := ief.Addrs()
if err == nil {
dst, err := net.ResolveTCPAddr("tcp", saddr)
for addrindex, addr := range addrs {
src, _, err := net.ParseCIDR(addr.String())
if err != nil {
return
continue
}
for _, addr := range addrs {
src, _, err := net.ParseCIDR(addr.String())
if err != nil {
continue
}
if (src.To4() != nil) == (dst.IP.To4() != nil) && src.IsGlobalUnicast() {
if (src.To4() != nil) == (dst.IP.To4() != nil) {
if addrindex == len(addrs)-1 || src.IsGlobalUnicast() {
dialer.LocalAddr = &net.TCPAddr{
IP: src,
Port: 0,
Zone: sintf,
}
break
}
}
if dialer.LocalAddr == nil {
return
}
}
if dialer.LocalAddr == nil {
return
}
}
}
conn, err = dialer.Dial("tcp", saddr)
if err != nil {
return