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Increase dns client timeout

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This commit is contained in:
Viktor Liu
2025-07-09 20:27:22 +02:00
parent a49f204481
commit a1cb7b4af6
4 changed files with 18 additions and 6 deletions
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3
client/internal/dns/upstream.go
View File

@@ -27,6 +27,9 @@ import (
const (
UpstreamTimeout = 15 * time.Second
// ClientTimeout is the timeout for the dns.Client.
// Set longer than UpstreamTimeout to ensure context timeout takes precedence
ClientTimeout = 30 * time.Second
reactivatePeriod = 30 * time.Second
probeTimeout = 2 * time.Second

9
client/internal/dns/upstream_android.go
View File

@@ -50,7 +50,9 @@ func (u *upstreamResolver) exchange(ctx context.Context, upstream string, r *dns
}
func (u *upstreamResolver) exchangeWithinVPN(ctx context.Context, upstream string, r *dns.Msg) (rm *dns.Msg, t time.Duration, err error) {
upstreamExchangeClient := &dns.Client{}
upstreamExchangeClient := &dns.Client{
Timeout: ClientTimeout,
}
return upstreamExchangeClient.ExchangeContext(ctx, r, upstream)
}
@@ -72,10 +74,11 @@ func (u *upstreamResolver) exchangeWithoutVPN(ctx context.Context, upstream stri
}
upstreamExchangeClient := &dns.Client{
Dialer: dialer,
Dialer: dialer,
Timeout: timeout,
}
return upstreamExchangeClient.Exchange(r, upstream)
return upstreamExchangeClient.ExchangeContext(ctx, r, upstream)
}
func (u *upstreamResolver) isLocalResolver(upstream string) bool {

5
client/internal/dns/upstream_general.go
View File

@@ -34,7 +34,10 @@ func newUpstreamResolver(
}
func (u *upstreamResolver) exchange(ctx context.Context, upstream string, r *dns.Msg) (rm *dns.Msg, t time.Duration, err error) {
return ExchangeWithFallback(ctx, &dns.Client{}, r, upstream)
client := &dns.Client{
Timeout: ClientTimeout,
}
return ExchangeWithFallback(ctx, client, r, upstream)
}
func GetClientPrivate(ip netip.Addr, interfaceName string, dialTimeout time.Duration) (*dns.Client, error) {

7
client/internal/dns/upstream_ios.go
View File

@@ -47,7 +47,9 @@ func newUpstreamResolver(
}
func (u *upstreamResolverIOS) exchange(ctx context.Context, upstream string, r *dns.Msg) (rm *dns.Msg, t time.Duration, err error) {
client := &dns.Client{}
client := &dns.Client{
Timeout: ClientTimeout,
}
upstreamHost, _, err := net.SplitHostPort(upstream)
if err != nil {
return nil, 0, fmt.Errorf("error while parsing upstream host: %s", err)
@@ -108,7 +110,8 @@ func GetClientPrivate(ip netip.Addr, interfaceName string, dialTimeout time.Dura
},
}
client := &dns.Client{
Dialer: dialer,
Dialer: dialer,
Timeout: dialTimeout,
}
return client, nil
}