From 4af8a7d7a69dcd2326363033cc9a5f01171a9424 Mon Sep 17 00:00:00 2001
From: n3t1zen <boringssl@proton.me>
Date: Sun, 3 May 2026 21:14:25 +0800
Subject: [PATCH] implement match_only

---
 adapter/inbound.go        | 13 +++++++------
 option/rule_action.go     |  1 +
 protocol/mysql/inbound.go |  2 +-
 route/conn.go             |  2 +-
 route/route.go            |  1 +
 route/rule/rule_action.go |  2 ++
 6 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/adapter/inbound.go b/adapter/inbound.go
index 1941df5b..bb950c86 100644
--- a/adapter/inbound.go
+++ b/adapter/inbound.go
@@ -81,12 +81,13 @@ type InboundContext struct {
 	FallbackNetworkType []C.InterfaceType
 	FallbackDelay       time.Duration
 
-	DestinationAddresses []netip.Addr
-	SourceGeoIPCode      string
-	GeoIPCode            string
-	ProcessInfo          *ConnectionOwner
-	QueryType            uint16
-	FakeIP               bool
+	DestinationAddresses       []netip.Addr
+	IgnoreDestinationAddresses bool
+	SourceGeoIPCode            string
+	GeoIPCode                  string
+	ProcessInfo                *ConnectionOwner
+	QueryType                  uint16
+	FakeIP                     bool
 
 	// rule cache
 
diff --git a/option/rule_action.go b/option/rule_action.go
index 43108255..24e8863b 100644
--- a/option/rule_action.go
+++ b/option/rule_action.go
@@ -312,6 +312,7 @@ type RouteActionResolve struct {
 	DisableCache bool                  `json:"disable_cache,omitempty"`
 	RewriteTTL   *uint32               `json:"rewrite_ttl,omitempty"`
 	ClientSubnet *badoption.Prefixable `json:"client_subnet,omitempty"`
+	MatchOnly    bool                  `json:"match_only,omitempty"`
 }
 
 type DNSRouteActionPredefined struct {
diff --git a/protocol/mysql/inbound.go b/protocol/mysql/inbound.go
index dbf9a98e..fe759fee 100644
--- a/protocol/mysql/inbound.go
+++ b/protocol/mysql/inbound.go
@@ -71,7 +71,7 @@ func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLo
 
 	// Create a go-mysql server with our TLS config
 	inbound.mysqlServer = server.NewServer(
-		"8.0.12",
+		"9.7.0",
 		gmysql.DEFAULT_COLLATION_ID,
 		gmysql.AUTH_NATIVE_PASSWORD,
 		nil,
diff --git a/route/conn.go b/route/conn.go
index 899d2939..618e986c 100644
--- a/route/conn.go
+++ b/route/conn.go
@@ -96,7 +96,7 @@ func (m *ConnectionManager) NewConnection(ctx context.Context, this N.Dialer, co
 		remoteConn net.Conn
 		err        error
 	)
-	if len(metadata.DestinationAddresses) > 0 || metadata.Destination.IsIP() {
+	if !metadata.IgnoreDestinationAddresses && (len(metadata.DestinationAddresses) > 0 || metadata.Destination.IsIP()) {
 		remoteConn, err = dialer.DialSerialNetwork(ctx, this, N.NetworkTCP, metadata.Destination, metadata.DestinationAddresses, metadata.NetworkStrategy, metadata.NetworkType, metadata.FallbackNetworkType, metadata.FallbackDelay)
 	} else {
 		remoteConn, err = this.DialContext(ctx, N.NetworkTCP, metadata.Destination)
diff --git a/route/route.go b/route/route.go
index 70444b01..91a76be8 100644
--- a/route/route.go
+++ b/route/route.go
@@ -842,6 +842,7 @@ func (r *Router) actionResolve(ctx context.Context, metadata *adapter.InboundCon
 			return err
 		}
 		metadata.DestinationAddresses = addresses
+		metadata.IgnoreDestinationAddresses = action.MatchOnly
 		r.logger.DebugContext(ctx, "resolved [", strings.Join(F.MapToString(metadata.DestinationAddresses), " "), "]")
 	}
 	return nil
diff --git a/route/rule/rule_action.go b/route/rule/rule_action.go
index cac814e7..10d1a06c 100644
--- a/route/rule/rule_action.go
+++ b/route/rule/rule_action.go
@@ -111,6 +111,7 @@ func NewRuleAction(ctx context.Context, logger logger.ContextLogger, action opti
 			Strategy:     C.DomainStrategy(action.ResolveOptions.Strategy),
 			DisableCache: action.ResolveOptions.DisableCache,
 			RewriteTTL:   action.ResolveOptions.RewriteTTL,
+			MatchOnly:    action.ResolveOptions.MatchOnly,
 			ClientSubnet: action.ResolveOptions.ClientSubnet.Build(netip.Prefix{}),
 		}, nil
 	default:
@@ -474,6 +475,7 @@ type RuleActionResolve struct {
 	Server       string
 	Strategy     C.DomainStrategy
 	DisableCache bool
+	MatchOnly    bool
 	RewriteTTL   *uint32
 	ClientSubnet netip.Prefix
 }