Add BMP_STATE_DB into gnmi protobuf so that table path could be subscribed.

sonic_db_config/db_config_test.go

@@ -40,6 +40,37 @@ func TestGetDb(t *testing.T) {
 	})
 }
 
+func TestGetBMPDb(t *testing.T) {
+	ns, _ := GetDbDefaultNamespace()
+	t.Run("Id", func(t *testing.T) {
+		db_id, _ := GetDbId("BMP_STATE_DB", ns)
+		if db_id != 20 {
+			t.Fatalf(`Id("") = %d, want 20, error`, db_id)
+		}
+	})
+	t.Run("Sock", func(t *testing.T) {
+		sock_path, _ := GetDbSock("BMP_STATE_DB", ns)
+		if sock_path != "/var/run/redis/redis.sock" {
+			t.Fatalf(`Sock("") = %q, want "/var/run/redis/redis.sock", error`, sock_path)
+		}
+	})
+	t.Run("AllNamespaces", func(t *testing.T) {
+		ns_list, _ := GetDbAllNamespaces()
+		if len(ns_list) != 1 {
+			t.Fatalf(`AllNamespaces("") = %q, want "1", error`, len(ns_list))
+		}
+		if ns_list[0] != ns {
+			t.Fatalf(`AllNamespaces("") = %q, want default, error`, ns_list[0])
+		}
+	})
+	t.Run("TcpAddr", func(t *testing.T) {
+		tcp_addr, _ := GetDbTcpAddr("BMP_STATE_DB", ns)
+		if tcp_addr != "127.0.0.1:6379" {
+			t.Fatalf(`TcpAddr("") = %q, want 127.0.0.1:6379, error`, tcp_addr)
+		}
+	})
+}
+
 func TestGetDbMultiNs(t *testing.T) {
 	Init()
 	err := test_utils.SetupMultiNamespace()

testdata/database_config.json

@@ -46,6 +46,11 @@
             "id" : 7,
             "separator": "|",
             "instance" : "redis"
+        },
+        "BMP_STATE_DB": {
+            "id": 20,
+            "separator": "|",
+            "instance": "redis"
         }
     },
     "VERSION" : "1.0"