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chore: exposure ipv6 wait time

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This commit is contained in:
Skyxim
2023-03-10 23:38:16 +08:00
parent 035d878a9f
commit 07f3cd2ae5
4 changed files with 30 additions and 14 deletions
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37
dns/resolver.go
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@ -42,6 +42,7 @@ type geositePolicyRecord struct {
type Resolver struct {
ipv6 bool
ipv6Timeout time.Duration
hosts *trie.DomainTrie[netip.Addr]
main []dnsClient
fallback []dnsClient
@ -91,14 +92,20 @@ func (r *Resolver) LookupIP(ctx context.Context, host string) (ips []netip.Addr,
}()
ips, err = r.lookupIP(ctx, host, D.TypeA)
var waitIPv6 *time.Timer
if r != nil {
waitIPv6 = time.NewTimer(r.ipv6Timeout)
} else {
waitIPv6 = time.NewTimer(100 * time.Millisecond)
}
defer waitIPv6.Stop()
select {
case ipv6s, open := <-ch:
if !open && err != nil {
return nil, resolver.ErrIPNotFound
}
ips = append(ips, ipv6s...)
case <-time.After(30 * time.Millisecond):
case <-waitIPv6.C:
// wait ipv6 result
}
@ -419,6 +426,7 @@ type Config struct {
Default []NameServer
ProxyServer []NameServer
IPv6 bool
IPv6Timeout uint
EnhancedMode C.DNSMode
FallbackFilter FallbackFilter
Pool *fakeip.Pool
@ -428,15 +436,17 @@ type Config struct {
func NewResolver(config Config) *Resolver {
defaultResolver := &Resolver{
main: transform(config.Default, nil),
lruCache: cache.New(cache.WithSize[string, *D.Msg](4096), cache.WithStale[string, *D.Msg](true)),
main: transform(config.Default, nil),
lruCache: cache.New(cache.WithSize[string, *D.Msg](4096), cache.WithStale[string, *D.Msg](true)),
ipv6Timeout: time.Duration(config.IPv6Timeout) * time.Millisecond,
}
r := &Resolver{
ipv6: config.IPv6,
main: transform(config.Main, defaultResolver),
lruCache: cache.New(cache.WithSize[string, *D.Msg](4096), cache.WithStale[string, *D.Msg](true)),
hosts: config.Hosts,
ipv6: config.IPv6,
main: transform(config.Main, defaultResolver),
lruCache: cache.New(cache.WithSize[string, *D.Msg](4096), cache.WithStale[string, *D.Msg](true)),
hosts: config.Hosts,
ipv6Timeout: time.Duration(config.IPv6Timeout) * time.Millisecond,
}
if len(config.Fallback) != 0 {
@ -502,11 +512,12 @@ func NewResolver(config Config) *Resolver {
func NewProxyServerHostResolver(old *Resolver) *Resolver {
r := &Resolver{
ipv6: old.ipv6,
main: old.proxyServer,
lruCache: old.lruCache,
hosts: old.hosts,
policy: old.policy,
ipv6: old.ipv6,
main: old.proxyServer,
lruCache: old.lruCache,
hosts: old.hosts,
policy: old.policy,
ipv6Timeout: old.ipv6Timeout,
}
return r
}