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all: implement split upstreams

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This commit introduces split upstreams feature, allowing to configure
what ip stack that ctrld will use to connect to upstream.
This commit is contained in:
Cuong Manh Le
2023-04-28 01:12:59 +07:00
committed by Cuong Manh Le
parent 5cad0d6be1
commit b267572b38
10 changed files with 286 additions and 68 deletions
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doq.go
+10 -4
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@@ -20,11 +20,17 @@ type doqResolver struct {
func (r *doqResolver) Resolve(ctx context.Context, msg *dns.Msg) (*dns.Msg, error) {
endpoint := r.uc.Endpoint
tlsConfig := &tls.Config{NextProtos: []string{"doq"}}
if r.uc.BootstrapIP != "" {
tlsConfig.ServerName = r.uc.Domain
_, port, _ := net.SplitHostPort(endpoint)
endpoint = net.JoinHostPort(r.uc.BootstrapIP, port)
ip := r.uc.BootstrapIP
if ip == "" {
dnsTyp := uint16(0)
if len(msg.Question) > 0 {
dnsTyp = msg.Question[0].Qtype
}
ip = r.uc.bootstrapIPForDNSType(dnsTyp)
}
tlsConfig.ServerName = r.uc.Domain
_, port, _ := net.SplitHostPort(endpoint)
endpoint = net.JoinHostPort(ip, port)
return resolve(ctx, msg, endpoint, tlsConfig)
}