import type { Long } from '@grpc/proto-loader';
export declare const _envoy_config_core_v3_SocketOption_SocketState: {
    /**
     * Socket options are applied after socket creation but before binding the socket to a port
     */
    readonly STATE_PREBIND: "STATE_PREBIND";
    /**
     * Socket options are applied after binding the socket to a port but before calling listen()
     */
    readonly STATE_BOUND: "STATE_BOUND";
    /**
     * Socket options are applied after calling listen()
     */
    readonly STATE_LISTENING: "STATE_LISTENING";
};
export type _envoy_config_core_v3_SocketOption_SocketState = 
/**
 * Socket options are applied after socket creation but before binding the socket to a port
 */
'STATE_PREBIND' | 0
/**
 * Socket options are applied after binding the socket to a port but before calling listen()
 */
 | 'STATE_BOUND' | 1
/**
 * Socket options are applied after calling listen()
 */
 | 'STATE_LISTENING' | 2;
export type _envoy_config_core_v3_SocketOption_SocketState__Output = typeof _envoy_config_core_v3_SocketOption_SocketState[keyof typeof _envoy_config_core_v3_SocketOption_SocketState];
/**
 * Generic socket option message. This would be used to set socket options that
 * might not exist in upstream kernels or precompiled Envoy binaries.
 *
 * For example:
 *
 * .. code-block:: json
 *
 * {
 * "description": "support tcp keep alive",
 * "state": 0,
 * "level": 1,
 * "name": 9,
 * "int_value": 1,
 * }
 *
 * 1 means SOL_SOCKET and 9 means SO_KEEPALIVE on Linux.
 * With the above configuration, `TCP Keep-Alives <https://www.freesoft.org/CIE/RFC/1122/114.htm>`_
 * can be enabled in socket with Linux, which can be used in
 * :ref:`listener's<envoy_v3_api_field_config.listener.v3.Listener.socket_options>` or
 * :ref:`admin's <envoy_v3_api_field_config.bootstrap.v3.Admin.socket_options>` socket_options etc.
 *
 * It should be noted that the name or level may have different values on different platforms.
 * [#next-free-field: 7]
 */
export interface SocketOption {
    /**
     * An optional name to give this socket option for debugging, etc.
     * Uniqueness is not required and no special meaning is assumed.
     */
    'description'?: (string);
    /**
     * Corresponding to the level value passed to setsockopt, such as IPPROTO_TCP
     */
    'level'?: (number | string | Long);
    /**
     * The numeric name as passed to setsockopt
     */
    'name'?: (number | string | Long);
    /**
     * Because many sockopts take an int value.
     */
    'int_value'?: (number | string | Long);
    /**
     * Otherwise it's a byte buffer.
     */
    'buf_value'?: (Buffer | Uint8Array | string);
    /**
     * The state in which the option will be applied. When used in BindConfig
     * STATE_PREBIND is currently the only valid value.
     */
    'state'?: (_envoy_config_core_v3_SocketOption_SocketState);
    'value'?: "int_value" | "buf_value";
}
/**
 * Generic socket option message. This would be used to set socket options that
 * might not exist in upstream kernels or precompiled Envoy binaries.
 *
 * For example:
 *
 * .. code-block:: json
 *
 * {
 * "description": "support tcp keep alive",
 * "state": 0,
 * "level": 1,
 * "name": 9,
 * "int_value": 1,
 * }
 *
 * 1 means SOL_SOCKET and 9 means SO_KEEPALIVE on Linux.
 * With the above configuration, `TCP Keep-Alives <https://www.freesoft.org/CIE/RFC/1122/114.htm>`_
 * can be enabled in socket with Linux, which can be used in
 * :ref:`listener's<envoy_v3_api_field_config.listener.v3.Listener.socket_options>` or
 * :ref:`admin's <envoy_v3_api_field_config.bootstrap.v3.Admin.socket_options>` socket_options etc.
 *
 * It should be noted that the name or level may have different values on different platforms.
 * [#next-free-field: 7]
 */
export interface SocketOption__Output {
    /**
     * An optional name to give this socket option for debugging, etc.
     * Uniqueness is not required and no special meaning is assumed.
     */
    'description': (string);
    /**
     * Corresponding to the level value passed to setsockopt, such as IPPROTO_TCP
     */
    'level': (string);
    /**
     * The numeric name as passed to setsockopt
     */
    'name': (string);
    /**
     * Because many sockopts take an int value.
     */
    'int_value'?: (string);
    /**
     * Otherwise it's a byte buffer.
     */
    'buf_value'?: (Buffer);
    /**
     * The state in which the option will be applied. When used in BindConfig
     * STATE_PREBIND is currently the only valid value.
     */
    'state': (_envoy_config_core_v3_SocketOption_SocketState__Output);
    'value'?: "int_value" | "buf_value";
}