[dependencies] Update golangci/golangci-lint-action action to v8

dns/transport/https.go

@@ -3,11 +3,15 @@ package transport
 import (
 	"bytes"
 	"context"
+	"errors"
 	"io"
 	"net"
 	"net/http"
 	"net/url"
+	"os"
 	"strconv"
+	"sync"
+	"time"
 
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-box/common/dialer"
@@ -43,7 +47,9 @@ type HTTPSTransport struct {
 	dialer           N.Dialer
 	destination      *url.URL
 	headers          http.Header
+	transportAccess  sync.Mutex
 	transport        *http.Transport
+	transportResetAt time.Time
 }
 
 func NewHTTPS(ctx context.Context, logger log.ContextLogger, tag string, options option.RemoteHTTPSDNSServerOptions) (adapter.DNSTransport, error) {
@@ -122,7 +128,6 @@ func NewHTTPSRaw(
 	var transport *http.Transport
 	if tlsConfig != nil {
 		transport = &http.Transport{
-			IdleConnTimeout:   C.TCPKeepAliveInitial,
 			ForceAttemptHTTP2: true,
 			DialTLSContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
 				tcpConn, hErr := dialer.DialContext(ctx, network, serverAddr)
@@ -139,7 +144,6 @@ func NewHTTPSRaw(
 		}
 	} else {
 		transport = &http.Transport{
-			IdleConnTimeout: C.TCPKeepAliveInitial,
 			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
 				return dialer.DialContext(ctx, network, serverAddr)
 			},
@@ -163,12 +167,33 @@ func (t *HTTPSTransport) Start(stage adapter.StartStage) error {
 }
 
 func (t *HTTPSTransport) Close() error {
+	t.transportAccess.Lock()
+	defer t.transportAccess.Unlock()
 	t.transport.CloseIdleConnections()
 	t.transport = t.transport.Clone()
 	return nil
 }
 
 func (t *HTTPSTransport) Exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
+	startAt := time.Now()
+	response, err := t.exchange(ctx, message)
+	if err != nil {
+		if errors.Is(err, os.ErrDeadlineExceeded) {
+			t.transportAccess.Lock()
+			defer t.transportAccess.Unlock()
+			if t.transportResetAt.After(startAt) {
+				return nil, err
+			}
+			t.transport.CloseIdleConnections()
+			t.transport = t.transport.Clone()
+			t.transportResetAt = time.Now()
+		}
+		return nil, err
+	}
+	return response, nil
+}
+
+func (t *HTTPSTransport) exchange(ctx context.Context, message *mDNS.Msg) (*mDNS.Msg, error) {
 	exMessage := *message
 	exMessage.Id = 0
 	exMessage.Compress = true

docs/changelog.md

@@ -2,7 +2,7 @@
 icon: material/alert-decagram
 ---
 
-#### 1.12.0-beta.29
+#### 1.12.0-beta.30
 
 * Fixes and improvements
 

go.mod

@@ -34,7 +34,7 @@ require (
 	github.com/sagernet/sing-shadowsocks v0.2.8
 	github.com/sagernet/sing-shadowsocks2 v0.2.1
 	github.com/sagernet/sing-shadowtls v0.2.1-0.20250503051639-fcd445d33c11
-	github.com/sagernet/sing-tun v0.6.10-0.20250620051458-5e343c4b66b2
+	github.com/sagernet/sing-tun v0.6.10-0.20250630100036-8763c24e4935
 	github.com/sagernet/sing-vmess v0.2.4-0.20250605032146-38cc72672c88
 	github.com/sagernet/smux v1.5.34-mod.2
 	github.com/sagernet/tailscale v1.80.3-mod.5

go.sum

@@ -180,8 +180,8 @@ github.com/sagernet/sing-shadowsocks2 v0.2.1 h1:dWV9OXCeFPuYGHb6IRqlSptVnSzOelnq
 github.com/sagernet/sing-shadowsocks2 v0.2.1/go.mod h1:RnXS0lExcDAovvDeniJ4IKa2IuChrdipolPYWBv9hWQ=
 github.com/sagernet/sing-shadowtls v0.2.1-0.20250503051639-fcd445d33c11 h1:tK+75l64tm9WvEFrYRE1t0YxoFdWQqw/h7Uhzj0vJ+w=
 github.com/sagernet/sing-shadowtls v0.2.1-0.20250503051639-fcd445d33c11/go.mod h1:sWqKnGlMipCHaGsw1sTTlimyUpgzP4WP3pjhCsYt9oA=
-github.com/sagernet/sing-tun v0.6.10-0.20250620051458-5e343c4b66b2 h1:ykbqGFHDNVvp0jhgLime/XBAtQpcOcFpT8Rs5Hcc5n4=
-github.com/sagernet/sing-tun v0.6.10-0.20250620051458-5e343c4b66b2/go.mod h1:fisFCbC4Vfb6HqQNcwPJi2CDK2bf0Xapyz3j3t4cnHE=
+github.com/sagernet/sing-tun v0.6.10-0.20250630100036-8763c24e4935 h1:wha4BG4mrEKaIoouVyiU5BcPfKD1n0LkiL4vqdjaVps=
+github.com/sagernet/sing-tun v0.6.10-0.20250630100036-8763c24e4935/go.mod h1:fisFCbC4Vfb6HqQNcwPJi2CDK2bf0Xapyz3j3t4cnHE=
 github.com/sagernet/sing-vmess v0.2.4-0.20250605032146-38cc72672c88 h1:0pVm8sPOel+BoiCddW3pV3cKDKEaSioVTYDdTSKjyFI=
 github.com/sagernet/sing-vmess v0.2.4-0.20250605032146-38cc72672c88/go.mod h1:IL8Rr+EGwuqijszZkNrEFTQDKhilEpkqFqOlvdpS6/w=
 github.com/sagernet/smux v1.5.34-mod.2 h1:gkmBjIjlJ2zQKpLigOkFur5kBKdV6bNRoFu2WkltRQ4=