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Improve DNS timeout

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世界 2024-06-07 15:59:56 +08:00
parent 155cb561d6
commit f06c3660c3
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GPG key ID: CD109927C34A63C4
3 changed files with 3 additions and 10 deletions
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2
go.mod
View file

@ -27,7 +27,7 @@ require (
github.com/sagernet/quic-go v0.43.1-beta.1
github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691
github.com/sagernet/sing v0.5.0-alpha.9
github.com/sagernet/sing-dns v0.2.0
github.com/sagernet/sing-dns v0.3.0-beta.2
github.com/sagernet/sing-mux v0.2.0
github.com/sagernet/sing-quic v0.2.0-beta.5
github.com/sagernet/sing-shadowsocks v0.2.6

4
go.sum
View file

@ -115,8 +115,8 @@ github.com/sagernet/reality v0.0.0-20230406110435-ee17307e7691/go.mod h1:B8lp4Wk
github.com/sagernet/sing v0.2.18/go.mod h1:OL6k2F0vHmEzXz2KW19qQzu172FDgSbUSODylighuVo=
github.com/sagernet/sing v0.5.0-alpha.9 h1:Mmg+LCbaKXBeQD/ttzi0/MQa3NcUyfadIgkGzhQW7o0=
github.com/sagernet/sing v0.5.0-alpha.9/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
github.com/sagernet/sing-dns v0.2.0 h1:dka3weRX6+CrYO3v+hrTy2z68rCOCZXNBiNXpLZ6JNs=
github.com/sagernet/sing-dns v0.2.0/go.mod h1:BJpJv6XLnrUbSyIntOT6DG9FW0f4fETmPAHvNjOprLg=
github.com/sagernet/sing-dns v0.3.0-beta.2 h1:WRYifYptETBbzTqSopxYSEijt8QwEQX9SJPdq8maaGM=
github.com/sagernet/sing-dns v0.3.0-beta.2/go.mod h1:qeO/lOUK/c3Zczp5a1VO13fbmolaM8xGKCUXtaX0/NQ=
github.com/sagernet/sing-mux v0.2.0 h1:4C+vd8HztJCWNYfufvgL49xaOoOHXty2+EAjnzN3IYo=
github.com/sagernet/sing-mux v0.2.0/go.mod h1:khzr9AOPocLa+g53dBplwNDz4gdsyx/YM3swtAhlkHQ=
github.com/sagernet/sing-quic v0.2.0-beta.5 h1:ceKFLd1iS5AtM+pScKmcDp5k7R6WgYIe8vl6nB0aVsE=

7
route/router_dns.go
View file

@ -8,7 +8,6 @@ import (
"time"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-dns"
"github.com/sagernet/sing/common/cache"
E "github.com/sagernet/sing/common/exceptions"
@ -122,12 +121,10 @@ func (r *Router) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, er
for {
var (
dnsCtx context.Context
cancel context.CancelFunc
addressLimit bool
)
dnsCtx, transport, strategy, rule, ruleIndex = r.matchDNS(ctx, true, ruleIndex)
dnsCtx, cancel = context.WithTimeout(dnsCtx, C.DNSTimeout)
if rule != nil && rule.WithAddressLimit() && isAddressQuery(message) {
addressLimit = true
response, err = r.dnsClient.ExchangeWithResponseCheck(dnsCtx, transport, message, strategy, func(response *mDNS.Msg) bool {
@ -138,7 +135,6 @@ func (r *Router) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, er
addressLimit = false
response, err = r.dnsClient.Exchange(dnsCtx, transport, message, strategy)
}
cancel()
var rejected bool
if err != nil {
if errors.Is(err, dns.ErrResponseRejectedCached) {
@ -200,7 +196,6 @@ func (r *Router) Lookup(ctx context.Context, domain string, strategy dns.DomainS
for {
var (
dnsCtx context.Context
cancel context.CancelFunc
addressLimit bool
)
metadata.ResetRuleCache()
@ -209,7 +204,6 @@ func (r *Router) Lookup(ctx context.Context, domain string, strategy dns.DomainS
if strategy == dns.DomainStrategyAsIS {
strategy = transportStrategy
}
dnsCtx, cancel = context.WithTimeout(dnsCtx, C.DNSTimeout)
if rule != nil && rule.WithAddressLimit() {
addressLimit = true
responseAddrs, err = r.dnsClient.LookupWithResponseCheck(dnsCtx, transport, domain, strategy, func(responseAddrs []netip.Addr) bool {
@ -220,7 +214,6 @@ func (r *Router) Lookup(ctx context.Context, domain string, strategy dns.DomainS
addressLimit = false
responseAddrs, err = r.dnsClient.Lookup(dnsCtx, transport, domain, strategy)
}
cancel()
if err != nil {
if errors.Is(err, dns.ErrResponseRejectedCached) {
r.dnsLogger.DebugContext(ctx, "response rejected for ", domain, " (cached)")