From 5192a08b810106afc9326b3b97a425f1689afc55 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Dan=20No=C3=A9?= Date: Tue, 13 Mar 2018 19:14:07 -0400 Subject: [PATCH] lds,BindConfig: Add "freebind" options to support IP_FREEBIND. (#536) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add an option "freebind" in LDS for listeners and the BindConfig which is used for outgoing upstream connections. If true, set IP_FREEBIND socket option. Defaults to false. PR description will be updated with Envoy implementation PR# once it is created. Signed-off-by: Dan Noé --- envoy/api/v2/core/address.proto | 5 +++++ envoy/api/v2/lds.proto | 5 +++++ 2 files changed, 10 insertions(+) diff --git a/envoy/api/v2/core/address.proto b/envoy/api/v2/core/address.proto index 5f2aaa713..71e92c7bf 100644 --- a/envoy/api/v2/core/address.proto +++ b/envoy/api/v2/core/address.proto @@ -62,6 +62,11 @@ message BindConfig { // The address to bind to when creating a socket. SocketAddress source_address = 1 [(validate.rules).message.required = true, (gogoproto.nullable) = false]; + + // [#not-implemented-hide:] Whether to set the IP_FREEBIND option when creating the socket. If + // set, allows the source_address specified to be an address that is not configured on the system + // running Envoy. Defaults to false. + bool freebind = 2; } // Addresses specify either a logical or physical address and port, which are diff --git a/envoy/api/v2/lds.proto b/envoy/api/v2/lds.proto index 5cd21ce8f..b6de9dae3 100644 --- a/envoy/api/v2/lds.proto +++ b/envoy/api/v2/lds.proto @@ -132,4 +132,9 @@ message Listener { // case the original source and destination addresses and ports are preserved on accepted // connections. Requires Envoy to run with the *CAP_NET_ADMIN* capability. Defaults to false. bool transparent = 10; + + // [#not-implemented-hide:] Whether the listener should set the IP_FREEBIND socket option. When + // this flag is set to true listeners can be bound to an IP address that is not configured on the + // system running Envoy. Defaults to false. + bool freebind = 11; }