%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2007-2018. 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%
%%
%%
-ifndef(ssl_internal).
-define(ssl_internal, true).
-include_lib("public_key/include/public_key.hrl").
-define(VSN, "8.2.6").
-define(SECRET_PRINTOUT, "***").
-type reason() :: term().
-type reply() :: term().
-type msg() :: term().
-type from() :: term().
-type host() :: inet:ip_address() | inet:hostname().
-type session_id() :: 0 | binary().
-type certdb_ref() :: reference().
-type db_handle() :: term().
-type der_cert() :: binary().
-type issuer() :: tuple().
-type serialnumber() :: integer().
-type cert_key() :: {reference(), integer(), issuer()}.
-type secret_printout() :: list().
%% basic binary constructors
-define(BOOLEAN(X), X:8/unsigned-big-integer).
-define(BYTE(X), X:8/unsigned-big-integer).
-define(UINT16(X), X:16/unsigned-big-integer).
-define(UINT24(X), X:24/unsigned-big-integer).
-define(UINT32(X), X:32/unsigned-big-integer).
-define(UINT48(X), X:48/unsigned-big-integer).
-define(UINT64(X), X:64/unsigned-big-integer).
-define(STRING(X), ?UINT32((size(X))), (X)/binary).
-define(byte(X), << ?BYTE(X) >> ).
-define(uint16(X), << ?UINT16(X) >> ).
-define(uint24(X), << ?UINT24(X) >> ).
-define(uint32(X), << ?UINT32(X) >> ).
-define(uint48(X), << ?UINT48(X) >> ).
-define(uint64(X), << ?UINT64(X) >> ).
-define(CDR_MAGIC, "GIOP").
-define(CDR_HDR_SIZE, 12).
-define(DEFAULT_TIMEOUT, 5000).
-define(NO_DIST_POINT, "http://dummy/no_distribution_point").
-define(NO_DIST_POINT_PATH, "dummy/no_distribution_point").
%% Common enumerate values in for SSL-protocols
-define(NULL, 0).
-define(TRUE, 0).
-define(FALSE, 1).
%% sslv3 is considered insecure due to lack of padding check (Poodle attack)
%% Keep as interop with legacy software but do not support as default
%% tlsv1.3 is under development (experimental).
-define(ALL_AVAILABLE_VERSIONS, ['tlsv1.3', 'tlsv1.2', 'tlsv1.1', tlsv1, sslv3]).
-define(ALL_AVAILABLE_DATAGRAM_VERSIONS, ['dtlsv1.2', dtlsv1]).
%% Defines the default versions when not specified by an ssl option.
-define(ALL_SUPPORTED_VERSIONS, ['tlsv1.2', 'tlsv1.1', tlsv1]).
-define(MIN_SUPPORTED_VERSIONS, ['tlsv1.1', tlsv1]).
%% Versions allowed in TLSCiphertext.version (TLS 1.2 and prior) and
%% TLSCiphertext.legacy_record_version (TLS 1.3).
%% TLS 1.3 sets TLSCiphertext.legacy_record_version to 0x0303 for all records
%% generated other than an than an initial ClientHello, where it MAY also be 0x0301.
%% Thus, the allowed range is limited to 0x0300 - 0x0303.
-define(ALL_TLS_RECORD_VERSIONS, ['tlsv1.2', 'tlsv1.1', tlsv1, sslv3]).
-define(ALL_DATAGRAM_SUPPORTED_VERSIONS, ['dtlsv1.2', dtlsv1]).
-define(MIN_DATAGRAM_SUPPORTED_VERSIONS, [dtlsv1]).
%% TLS 1.3 - Section 4.1.3
%%
%% If negotiating TLS 1.2, TLS 1.3 servers MUST set the last eight bytes
%% of their Random value to the bytes:
%%
%% 44 4F 57 4E 47 52 44 01
%%
%% If negotiating TLS 1.1 or below, TLS 1.3 servers MUST and TLS 1.2
%% servers SHOULD set the last eight bytes of their Random value to the
%% bytes:
%%
%% 44 4F 57 4E 47 52 44 00
-define(RANDOM_OVERRIDE_TLS12, <<16#44,16#4F,16#57,16#4E,16#47,16#52,16#44,16#01>>).
-define(RANDOM_OVERRIDE_TLS11, <<16#44,16#4F,16#57,16#4E,16#47,16#52,16#44,16#00>>).
-define('24H_in_msec', 86400000).
-define('24H_in_sec', 86400).
-record(ssl_options, {
protocol :: tls | dtls,
versions :: [ssl_record:ssl_version()], %% ssl_record:atom_version() in API
verify :: verify_none | verify_peer,
verify_fun, %%:: fun(CertVerifyErrors::term()) -> boolean(),
partial_chain :: fun(),
fail_if_no_peer_cert :: boolean(),
verify_client_once :: boolean(),
%% fun(Extensions, State, Verify, AccError) -> {Extensions, State, AccError}
validate_extensions_fun,
depth :: integer(),
certfile :: binary(),
cert :: public_key:der_encoded() | secret_printout() | 'undefined',
keyfile :: binary(),
key :: {'RSAPrivateKey' | 'DSAPrivateKey' | 'ECPrivateKey' | 'PrivateKeyInfo',
public_key:der_encoded()} | key_map() | secret_printout() | 'undefined',
password :: string() | secret_printout() | 'undefined',
cacerts :: [public_key:der_encoded()] | secret_printout() | 'undefined',
cacertfile :: binary(),
dh :: public_key:der_encoded() | secret_printout(),
dhfile :: binary() | secret_printout() | 'undefined',
user_lookup_fun, % server option, fun to lookup the user
psk_identity :: binary() | secret_printout() | 'undefined',
srp_identity, % client option {User, Password}
ciphers, %
%% Local policy for the server if it want's to reuse the session
%% or not. Defaluts to allways returning true.
%% fun(SessionId, PeerCert, Compression, CipherSuite) -> boolean()
reuse_session,
%% If false sessions will never be reused, if true they
%% will be reused if possible.
reuse_sessions :: boolean(),
renegotiate_at,
secure_renegotiate,
client_renegotiation,
%% undefined if not hibernating, or number of ms of
%% inactivity after which ssl_connection will go into
%% hibernation
hibernate_after :: timeout(),
%% This option should only be set to true by inet_tls_dist
erl_dist = false :: boolean(),
alpn_advertised_protocols = undefined :: [binary()] | undefined ,
alpn_preferred_protocols = undefined :: [binary()] | undefined,
next_protocols_advertised = undefined :: [binary()] | undefined,
next_protocol_selector = undefined, %% fun([binary()]) -> binary())
log_level = notice :: atom(),
server_name_indication = undefined,
sni_hosts :: [{inet:hostname(), [tuple()]}],
sni_fun :: function() | undefined,
%% Should the server prefer its own cipher order over the one provided by
%% the client?
honor_cipher_order = false :: boolean(),
padding_check = true :: boolean(),
%%Should we use 1/n-1 or 0/n splitting to mitigate BEAST, or disable
%%mitigation entirely?
beast_mitigation = one_n_minus_one :: one_n_minus_one | zero_n | disabled,
fallback = false :: boolean(),
crl_check :: boolean() | peer | best_effort,
crl_cache,
signature_algs,
signature_algs_cert,
eccs,
honor_ecc_order :: boolean(),
max_handshake_size :: integer(),
handshake,
customize_hostname_check
}).
-record(socket_options,
{
mode = list,
packet = 0,
packet_size = 0,
header = 0,
active = true
}).
-record(config, {ssl, %% SSL parameters
inet_user, %% User set inet options
emulated, %% Emulated option list or "inherit_tracker" pid
dtls_handler,
inet_ssl, %% inet options for internal ssl socket
transport_info, %% Callback info
connection_cb
}).
-type key_map() :: #{algorithm := rsa | dss | ecdsa,
%% engine and key_id ought to
%% be :=, but putting it in
%% the spec gives dialyzer warning
%% of correct code!
engine => crypto:engine_ref(),
key_id => crypto:key_id(),
password => crypto:password()
}.
-type state_name() :: hello | abbreviated | certify | cipher | connection.
-type gen_fsm_state_return() :: {next_state, state_name(), term()} |
{next_state, state_name(), term(), timeout()} |
{stop, term(), term()}.
-type ssl_options() :: #ssl_options{}.
-endif. % -ifdef(ssl_internal).
