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envoy.api.v2.auth.tls.proto Maven / Gradle / Ivy

syntax = "proto3";

package envoy.api.v2.auth;

import "envoy/api/v2/auth/common.proto";
import "envoy/api/v2/auth/secret.proto";

import "google/protobuf/duration.proto";
import "google/protobuf/wrappers.proto";

import "udpa/annotations/migrate.proto";
import "udpa/annotations/status.proto";
import "validate/validate.proto";

option java_package = "io.envoyproxy.envoy.api.v2.auth";
option java_outer_classname = "TlsProto";
option java_multiple_files = true;
option go_package = "github.com/envoyproxy/go-control-plane/envoy/api/v2/auth";
option (udpa.annotations.file_migrate).move_to_package =
    "envoy.extensions.transport_sockets.tls.v3";
option (udpa.annotations.file_status).package_version_status = FROZEN;

// [#protodoc-title: TLS transport socket]
// [#extension: envoy.transport_sockets.tls]
// The TLS contexts below provide the transport socket configuration for upstream/downstream TLS.

message UpstreamTlsContext {
  // Common TLS context settings.
  //
  // .. attention::
  //
  //   Server certificate verification is not enabled by default. Configure
  //   :ref:`trusted_ca` to enable
  //   verification.
  CommonTlsContext common_tls_context = 1;

  // SNI string to use when creating TLS backend connections.
  string sni = 2 [(validate.rules).string = {max_bytes: 255}];

  // If true, server-initiated TLS renegotiation will be allowed.
  //
  // .. attention::
  //
  //   TLS renegotiation is considered insecure and shouldn't be used unless absolutely necessary.
  bool allow_renegotiation = 3;

  // Maximum number of session keys (Pre-Shared Keys for TLSv1.3+, Session IDs and Session Tickets
  // for TLSv1.2 and older) to store for the purpose of session resumption.
  //
  // Defaults to 1, setting this to 0 disables session resumption.
  google.protobuf.UInt32Value max_session_keys = 4;
}

// [#next-free-field: 8]
message DownstreamTlsContext {
  // Common TLS context settings.
  CommonTlsContext common_tls_context = 1;

  // If specified, Envoy will reject connections without a valid client
  // certificate.
  google.protobuf.BoolValue require_client_certificate = 2;

  // If specified, Envoy will reject connections without a valid and matching SNI.
  // [#not-implemented-hide:]
  google.protobuf.BoolValue require_sni = 3;

  oneof session_ticket_keys_type {
    // TLS session ticket key settings.
    TlsSessionTicketKeys session_ticket_keys = 4;

    // Config for fetching TLS session ticket keys via SDS API.
    SdsSecretConfig session_ticket_keys_sds_secret_config = 5;

    // Config for controlling stateless TLS session resumption: setting this to true will cause the TLS
    // server to not issue TLS session tickets for the purposes of stateless TLS session resumption.
    // If set to false, the TLS server will issue TLS session tickets and encrypt/decrypt them using
    // the keys specified through either :ref:`session_ticket_keys `
    // or :ref:`session_ticket_keys_sds_secret_config `.
    // If this config is set to false and no keys are explicitly configured, the TLS server will issue
    // TLS session tickets and encrypt/decrypt them using an internally-generated and managed key, with the
    // implication that sessions cannot be resumed across hot restarts or on different hosts.
    bool disable_stateless_session_resumption = 7;
  }

  // If specified, ``session_timeout`` will change the maximum lifetime (in seconds) of the TLS session.
  // Currently this value is used as a hint for the `TLS session ticket lifetime (for TLSv1.2) `_.
  // Only seconds can be specified (fractional seconds are ignored).
  google.protobuf.Duration session_timeout = 6 [(validate.rules).duration = {
    lt {seconds: 4294967296}
    gte {}
  }];
}

// TLS context shared by both client and server TLS contexts.
// [#next-free-field: 9]
message CommonTlsContext {
  message CombinedCertificateValidationContext {
    // How to validate peer certificates.
    CertificateValidationContext default_validation_context = 1
        [(validate.rules).message = {required: true}];

    // Config for fetching validation context via SDS API.
    SdsSecretConfig validation_context_sds_secret_config = 2
        [(validate.rules).message = {required: true}];
  }

  reserved 5;

  // TLS protocol versions, cipher suites etc.
  TlsParameters tls_params = 1;

  // :ref:`Multiple TLS certificates ` can be associated with the
  // same context to allow both RSA and ECDSA certificates.
  //
  // Only a single TLS certificate is supported in client contexts. In server contexts, the first
  // RSA certificate is used for clients that only support RSA and the first ECDSA certificate is
  // used for clients that support ECDSA.
  repeated TlsCertificate tls_certificates = 2;

  // Configs for fetching TLS certificates via SDS API.
  repeated SdsSecretConfig tls_certificate_sds_secret_configs = 6
      [(validate.rules).repeated = {max_items: 1}];

  oneof validation_context_type {
    // How to validate peer certificates.
    CertificateValidationContext validation_context = 3;

    // Config for fetching validation context via SDS API.
    SdsSecretConfig validation_context_sds_secret_config = 7;

    // Combined certificate validation context holds a default CertificateValidationContext
    // and SDS config. When SDS server returns dynamic CertificateValidationContext, both dynamic
    // and default CertificateValidationContext are merged into a new CertificateValidationContext
    // for validation. This merge is done by Message::MergeFrom(), so dynamic
    // CertificateValidationContext overwrites singular fields in default
    // CertificateValidationContext, and concatenates repeated fields to default
    // CertificateValidationContext, and logical OR is applied to boolean fields.
    CombinedCertificateValidationContext combined_validation_context = 8;
  }

  // Supplies the list of ALPN protocols that the listener should expose. In
  // practice this is likely to be set to one of two values (see the
  // :ref:`codec_type
  // `
  // parameter in the HTTP connection manager for more information):
  //
  // * "h2,http/1.1" If the listener is going to support both HTTP/2 and HTTP/1.1.
  // * "http/1.1" If the listener is only going to support HTTP/1.1.
  //
  // There is no default for this parameter. If empty, Envoy will not expose ALPN.
  repeated string alpn_protocols = 4;
}