generic proxy: tracing support for the generic proxy based on the generic tracing (#24790)

Signed-off-by: wbpcode <wangbaiping@corp.netease.com>

Mirrored from https://github.com/envoyproxy/envoy @ 199a9398466c22edb5c9450688b742d76f9197f4

contrib/envoy/extensions/filters/network/generic_proxy/v3/BUILD

@@ -7,6 +7,7 @@ licenses(["notice"])  # Apache 2
 api_proto_package(
     deps = [
         "//envoy/config/core/v3:pkg",
+        "//envoy/extensions/filters/network/http_connection_manager/v3:pkg",
         "@com_github_cncf_udpa//udpa/annotations:pkg",
         "@com_github_cncf_udpa//xds/annotations/v3:pkg",
         "@com_github_cncf_udpa//xds/type/matcher/v3:pkg",

contrib/envoy/extensions/filters/network/generic_proxy/v3/generic_proxy.proto

@@ -5,6 +5,7 @@ package envoy.extensions.filters.network.generic_proxy.v3;
 import "contrib/envoy/extensions/filters/network/generic_proxy/v3/route.proto";
 import "envoy/config/core/v3/config_source.proto";
 import "envoy/config/core/v3/extension.proto";
+import "envoy/extensions/filters/network/http_connection_manager/v3/http_connection_manager.proto";
 
 import "xds/annotations/v3/status.proto";
 
@@ -22,7 +23,7 @@ option (xds.annotations.v3.file_status).work_in_progress = true;
 // Generic proxy.
 // [#extension: envoy.filters.network.generic_proxy]
 
-// [#next-free-field: 6]
+// [#next-free-field: 7]
 message GenericProxy {
   // The human readable prefix to use when emitting statistics.
   string stat_prefix = 1 [(validate.rules).string = {min_len: 1}];
@@ -47,6 +48,9 @@ message GenericProxy {
   // happen.
   // [#extension-category: envoy.generic_proxy.filters]
   repeated config.core.v3.TypedExtensionConfig filters = 5;
+
+  // Tracing configuration for the generic proxy.
+  http_connection_manager.v3.HttpConnectionManager.Tracing tracing = 6;
 }
 
 message GenericRds {