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syntax = "proto3";
package envoy.api.v2.core;
option java_outer_classname = "AddressProto";
option java_multiple_files = true;
option java_package = "io.envoyproxy.envoy.api.v2.core";
import "envoy/api/v2/core/base.proto";
import "google/protobuf/wrappers.proto";
import "validate/validate.proto";
import "gogoproto/gogo.proto";
option (gogoproto.equal_all) = true;
// [#protodoc-title: Network addresses]
message Pipe {
// Unix Domain Socket path. On Linux, paths starting with '@' will use the
// abstract namespace. The starting '@' is replaced by a null byte by Envoy.
// Paths starting with '@' will result in an error in environments other than
// Linux.
string path = 1 [(validate.rules).string.min_bytes = 1];
}
message SocketAddress {
enum Protocol {
option (gogoproto.goproto_enum_prefix) = false;
TCP = 0;
// [#not-implemented-hide:]
UDP = 1;
}
Protocol protocol = 1 [(validate.rules).enum.defined_only = true];
// The address for this socket. :ref:`Listeners <config_listeners>` will bind
// to the address. An empty address is not allowed. Specify ``0.0.0.0`` or ``::``
// to bind to any address. [#comment:TODO(zuercher) reinstate when implemented:
// It is possible to distinguish a Listener address via the prefix/suffix matching
// in :ref:`FilterChainMatch <envoy_api_msg_listener.FilterChainMatch>`.] When used
// within an upstream :ref:`BindConfig <envoy_api_msg_core.BindConfig>`, the address
// controls the source address of outbound connections. For :ref:`clusters
// <envoy_api_msg_Cluster>`, the cluster type determines whether the
// address must be an IP (*STATIC* or *EDS* clusters) or a hostname resolved by DNS
// (*STRICT_DNS* or *LOGICAL_DNS* clusters). Address resolution can be customized
// via :ref:`resolver_name <envoy_api_field_core.SocketAddress.resolver_name>`.
string address = 2 [(validate.rules).string.min_bytes = 1];
oneof port_specifier {
option (validate.required) = true;
uint32 port_value = 3 [(validate.rules).uint32.lte = 65535];
// This is only valid if :ref:`resolver_name
// <envoy_api_field_core.SocketAddress.resolver_name>` is specified below and the
// named resolver is capable of named port resolution.
string named_port = 4;
}
// The name of the resolver. This must have been registered with Envoy. If this is
// empty, a context dependent default applies. If address is a hostname this
// should be set for resolution other than DNS. If the address is a concrete
// IP address, no resolution will occur.
string resolver_name = 5;
// When binding to an IPv6 address above, this enables `IPv4 compatibility
// <https://tools.ietf.org/html/rfc3493#page-11>`_. Binding to ``::`` will
// allow both IPv4 and IPv6 connections, with peer IPv4 addresses mapped into
// IPv6 space as ``::FFFF:<IPv4-address>``.
bool ipv4_compat = 6;
}
message TcpKeepalive {
// Maximum number of keepalive probes to send without response before deciding
// the connection is dead. Default is to use the OS level configuration (unless
// overridden, Linux defaults to 9.)
google.protobuf.UInt32Value keepalive_probes = 1;
// The number of seconds a connection needs to be idle before keep-alive probes
// start being sent. Default is to use the OS level configuration (unless
// overridden, Linux defaults to 7200s (ie 2 hours.)
google.protobuf.UInt32Value keepalive_time = 2;
// The number of seconds between keep-alive probes. Default is to use the OS
// level configuration (unless overridden, Linux defaults to 75s.)
google.protobuf.UInt32Value keepalive_interval = 3;
}
message BindConfig {
// The address to bind to when creating a socket.
SocketAddress source_address = 1
[(validate.rules).message.required = true, (gogoproto.nullable) = false];
// Whether to set the *IP_FREEBIND* option when creating the socket. When this
// flag is set to true, allows the :ref:`source_address
// <envoy_api_field_UpstreamBindConfig.source_address>` to be an IP address
// that is not configured on the system running Envoy. When this flag is set
// to false, the option *IP_FREEBIND* is disabled on the socket. When this
// flag is not set (default), the socket is not modified, i.e. the option is
// neither enabled nor disabled.
google.protobuf.BoolValue freebind = 2;
// Additional socket options that may not be present in Envoy source code or
// precompiled binaries.
repeated SocketOption socket_options = 3;
}
// Addresses specify either a logical or physical address and port, which are
// used to tell Envoy where to bind/listen, connect to upstream and find
// management servers.
message Address {
oneof address {
option (validate.required) = true;
SocketAddress socket_address = 1;
Pipe pipe = 2;
}
}
// CidrRange specifies an IP Address and a prefix length to construct
// the subnet mask for a `CIDR <https://tools.ietf.org/html/rfc4632>`_ range.
message CidrRange {
// IPv4 or IPv6 address, e.g. ``192.0.0.0`` or ``2001:db8::``.
string address_prefix = 1 [(validate.rules).string.min_bytes = 1];
// Length of prefix, e.g. 0, 32.
google.protobuf.UInt32Value prefix_len = 2 [(validate.rules).uint32.lte = 128];
}
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