fix: UDP插件改用 conn.SetDeadline 替代类型断言

plugins/services/bacnet.go

@@ -34,9 +34,7 @@ func (p *BACnetPlugin) Scan(ctx context.Context, info *common.HostInfo, session
 	}
 	defer conn.Close()
 
-	if dl, ok := conn.(interface{ SetReadDeadline(time.Time) error }); ok {
-		_ = dl.SetReadDeadline(time.Now().Add(timeout))
-	}
+	_ = conn.SetDeadline(time.Now().Add(timeout))
 
 	if _, err := conn.Write(bacnetWhoIs); err != nil {
 		return &ScanResult{Success: false, Service: "bacnet"}

plugins/services/dns.go

@@ -34,9 +34,7 @@ func (p *DNSPlugin) Scan(ctx context.Context, info *common.HostInfo, session *co
 	}
 	defer conn.Close()
 
-	if dl, ok := conn.(interface{ SetReadDeadline(time.Time) error }); ok {
-		_ = dl.SetReadDeadline(time.Now().Add(timeout))
-	}
+	_ = conn.SetDeadline(time.Now().Add(timeout))
 
 	if _, err := conn.Write(query); err != nil {
 		return &ScanResult{Success: false, Service: "dns"}

plugins/services/ipmi.go

@@ -53,9 +53,7 @@ func (p *IPMIPlugin) rmcpPing(ctx context.Context, target string, timeout time.D
 		0x00, // data length = 0
 	}
 
-	if dl, ok := conn.(interface{ SetReadDeadline(time.Time) error }); ok {
-		_ = dl.SetReadDeadline(time.Now().Add(timeout))
-	}
+	_ = conn.SetDeadline(time.Now().Add(timeout))
 
 	if _, err := conn.Write(ping); err != nil {
 		return nil

plugins/services/snmp.go

@@ -75,9 +75,7 @@ func (p *SNMPPlugin) probe(ctx context.Context, target, community string, timeou
 	}
 	defer conn.Close()
 
-	if dl, ok := conn.(interface{ SetReadDeadline(time.Time) error }); ok {
-		_ = dl.SetReadDeadline(time.Now().Add(timeout))
-	}
+	_ = conn.SetDeadline(time.Now().Add(timeout))
 
 	pkt := buildSNMPGetRequest(community, []int{1, 3, 6, 1, 2, 1, 1, 1, 0})
 	if _, err := conn.Write(pkt); err != nil {

plugins/services/tftp.go

@@ -33,9 +33,7 @@ func (p *TFTPPlugin) Scan(ctx context.Context, info *common.HostInfo, session *c
 	}
 	defer conn.Close()
 
-	if dl, ok := conn.(interface{ SetReadDeadline(time.Time) error }); ok {
-		_ = dl.SetReadDeadline(time.Now().Add(timeout))
-	}
+	_ = conn.SetDeadline(time.Now().Add(timeout))
 
 	if _, err := conn.Write(buildTFTPReadRequest("probe")); err != nil {
 		return &ScanResult{Success: false, Service: "tftp"}