%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2013-2018. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
%%
%%----------------------------------------------------------------------
%% Purpose: SSL/TLS specific state
%%----------------------------------------------------------------------
-ifndef(ssl_connection).
-define(ssl_connection, true).
-include("ssl_internal.hrl").
-include("ssl_record.hrl").
-include("ssl_handshake.hrl").
-include("ssl_srp.hrl").
-include("ssl_cipher.hrl").
-include_lib("public_key/include/public_key.hrl").
-record(state, {
role :: client | server,
user_application :: {Monitor::reference(), User::pid()},
transport_cb :: atom(), % callback module
protocol_cb :: tls_connection | dtls_connection,
data_tag :: atom(), % ex tcp.
close_tag :: atom(), % ex tcp_closed
error_tag :: atom(), % ex tcp_error
host :: string() | inet:ip_address(),
port :: integer(),
socket :: port() | tuple(), %% TODO: dtls socket
sender :: pid() | undefined,
ssl_options :: #ssl_options{},
socket_options :: #socket_options{},
connection_states :: ssl_record:connection_states() | secret_printout(),
protocol_buffers :: term() | secret_printout() , %% #protocol_buffers{} from tls_record.hrl or dtls_recor.hrl
unprocessed_handshake_events = 0 :: integer(),
tls_handshake_history :: ssl_handshake:ssl_handshake_history() | secret_printout()
| 'undefined',
cert_db :: reference() | 'undefined',
session :: #session{} | secret_printout(),
session_cache :: db_handle(),
session_cache_cb :: atom(),
crl_db :: term(),
negotiated_version :: ssl_record:ssl_version() | 'undefined',
client_hello_version :: ssl_record:ssl_version() | 'undefined',
client_certificate_requested = false :: boolean(),
key_algorithm :: ssl_cipher_format:key_algo(),
hashsign_algorithm = {undefined, undefined},
cert_hashsign_algorithm = {undefined, undefined},
public_key_info :: ssl_handshake:public_key_info() | 'undefined',
private_key :: public_key:private_key() | secret_printout() | 'undefined',
diffie_hellman_params:: #'DHParameter'{} | undefined | secret_printout(),
diffie_hellman_keys :: {PublicKey :: binary(), PrivateKey :: binary()} | #'ECPrivateKey'{} | undefined | secret_printout(),
psk_identity :: binary() | 'undefined', % server psk identity hint
srp_params :: #srp_user{} | secret_printout() | 'undefined',
srp_keys ::{PublicKey :: binary(), PrivateKey :: binary()} | secret_printout() | 'undefined',
premaster_secret :: binary() | secret_printout() | 'undefined',
file_ref_db :: db_handle(),
cert_db_ref :: certdb_ref() | 'undefined',
bytes_to_read :: undefined | integer(), %% bytes to read in passive mode
user_data_buffer :: undefined | binary() | secret_printout(),
renegotiation :: undefined | {boolean(), From::term() | internal | peer},
start_or_recv_from :: term(),
timer :: undefined | reference(), % start_or_recive_timer
%%send_queue :: queue:queue(),
hello, %%:: #client_hello{} | #server_hello{},
terminated = false ::boolean(),
allow_renegotiate = true ::boolean(),
expecting_next_protocol_negotiation = false ::boolean(),
expecting_finished = false ::boolean(),
next_protocol = undefined :: undefined | binary(),
negotiated_protocol,
tracker :: pid() | 'undefined', %% Tracker process for listen socket
sni_hostname = undefined,
downgrade,
flight_buffer = [] :: list() | map(), %% Buffer of TLS/DTLS records, used during the TLS handshake
%% to when possible pack more than one TLS record into the
%% underlaying packet format. Introduced by DTLS - RFC 4347.
%% The mecahnism is also usefull in TLS although we do not
%% need to worry about packet loss in TLS. In DTLS we need to track DTLS handshake seqnr
flight_state = reliable, %% reliable | {retransmit, integer()}| {waiting, ref(), integer()} - last two is used in DTLS over udp.
protocol_specific = #{} :: map()
}).
-define(DEFAULT_DIFFIE_HELLMAN_PARAMS,
#'DHParameter'{prime = ?DEFAULT_DIFFIE_HELLMAN_PRIME,
base = ?DEFAULT_DIFFIE_HELLMAN_GENERATOR}).
-define(WAIT_TO_ALLOW_RENEGOTIATION, 12000).
-endif. % -ifdef(ssl_connection).
