From 8484a992553c1d417e8caf75f1d58a6f38b58c1c Mon Sep 17 00:00:00 2001
From: Lizan Zhou <zlizan@google.com>
Date: Wed, 1 Nov 2017 08:14:10 -0700
Subject: [PATCH] Add transport socket config (#218)

Signed-off-by: Lizan Zhou <zlizan@google.com>
---
 api/base.proto | 13 +++++++++++++
 api/cds.proto  |  5 ++++-
 api/lds.proto  |  3 +++
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/api/base.proto b/api/base.proto
index 40c6329b..9cbaeb0c 100644
--- a/api/base.proto
+++ b/api/base.proto
@@ -151,3 +151,16 @@ message ConfigSource {
     AggregatedConfigSource ads = 3;
   }
 }
+
+// Configuration for transport socket in listeners and clusters. If the configuration is empty,
+// a default transport socket implementation and configuration will be chosen based on the
+// platform and existence of tls_context.
+message TransportSocket {
+  // The name of the transport socket to instantiate. The name must match a supported transport
+  // socket implementation.
+  string name = 1;
+
+  // Implementation specific configuration which depends on the implementation being instantiated.
+  // See the supported transport socket implementations for further documentation.
+  google.protobuf.Struct config = 2;
+}
diff --git a/api/cds.proto b/api/cds.proto
index 75a42e55..1823bfc8 100644
--- a/api/cds.proto
+++ b/api/cds.proto
@@ -273,7 +273,7 @@ message Cluster {
     repeated LbSubsetSelector subset_selectors = 3;
   }
   LbSubsetConfig lb_subset_config = 22;
-  
+
   message RingHashLbConfig {
     // Minimum hash ring size, i.e. total virtual nodes. A larger size
     // will provide better request distribution since each host in the
@@ -298,4 +298,7 @@ message Cluster {
   oneof lb_config {
     RingHashLbConfig ring_hash_lb_config = 23;
   }
+
+  // See base.TransportSocket description.
+  TransportSocket transport_socket = 24;
 }
diff --git a/api/lds.proto b/api/lds.proto
index 7257e057..2e59d65e 100644
--- a/api/lds.proto
+++ b/api/lds.proto
@@ -100,6 +100,9 @@ message FilterChain {
 
   // See base.Metadata description.
   Metadata metadata = 5;
+
+  // See base.TransportSocket description.
+  TransportSocket transport_socket = 6;
 }
 
 message Listener {