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fix(vpn): send subnet masks and prefix lengths from router (#16317)

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These were somehow missed when I wrote the router..

Also updates `coder/tailscale` to bring in the DNS changes
https://github.com/coder/tailscale/pull/64
This commit is contained in:
Ethan
2025-01-29 15:11:08 +11:00
committed by GitHub
parent d32a5e1a01
commit a658ccf362
5 changed files with 36 additions and 29 deletions
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33
vpn/router.go
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@ -36,12 +36,16 @@ func (*vpnRouter) Close() error {
func convertRouterConfig(cfg router.Config) *NetworkSettingsRequest {
v4LocalAddrs := make([]string, 0)
v4SubnetMasks := make([]string, 0)
v6LocalAddrs := make([]string, 0)
v6PrefixLengths := make([]uint32, 0)
for _, addrs := range cfg.LocalAddrs {
if addrs.Addr().Is4() {
v4LocalAddrs = append(v4LocalAddrs, addrs.String())
v4LocalAddrs = append(v4LocalAddrs, addrs.Addr().String())
v4SubnetMasks = append(v4SubnetMasks, prefixToSubnetMask(addrs))
} else if addrs.Addr().Is6() {
v6LocalAddrs = append(v6LocalAddrs, addrs.String())
v6LocalAddrs = append(v6LocalAddrs, addrs.Addr().String())
v6PrefixLengths = append(v6PrefixLengths, uint32(addrs.Bits()))
} else {
continue
}
@ -69,18 +73,31 @@ func convertRouterConfig(cfg router.Config) *NetworkSettingsRequest {
}
}
return &NetworkSettingsRequest{
Mtu: uint32(cfg.NewMTU),
Ipv4Settings: &NetworkSettingsRequest_IPv4Settings{
var v4Settings *NetworkSettingsRequest_IPv4Settings
if len(v4LocalAddrs) > 0 || len(v4Routes) > 0 || len(v4ExcludedRoutes) > 0 {
v4Settings = &NetworkSettingsRequest_IPv4Settings{
Addrs: v4LocalAddrs,
SubnetMasks: v4SubnetMasks,
IncludedRoutes: v4Routes,
ExcludedRoutes: v4ExcludedRoutes,
},
Ipv6Settings: &NetworkSettingsRequest_IPv6Settings{
Router: "", // NA
}
}
var v6Settings *NetworkSettingsRequest_IPv6Settings
if len(v6LocalAddrs) > 0 || len(v6Routes) > 0 || len(v6ExcludedRoutes) > 0 {
v6Settings = &NetworkSettingsRequest_IPv6Settings{
Addrs: v6LocalAddrs,
PrefixLengths: v6PrefixLengths,
IncludedRoutes: v6Routes,
ExcludedRoutes: v6ExcludedRoutes,
},
}
}
return &NetworkSettingsRequest{
Mtu: uint32(cfg.NewMTU),
Ipv4Settings: v4Settings,
Ipv6Settings: v6Settings,
TunnelOverheadBytes: 0, // N/A
TunnelRemoteAddress: "", // N/A
}