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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2007-2020. 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(SECRET_PRINTOUT, "***").
-type reason() :: any().
-type reply() :: any().
-type msg() :: any().
-type from() :: any().
-type certdb_ref() :: reference().
-type db_handle() :: any().
-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(INTERNAL_ACTIVE_N, 100).
-define(DEPTH, 20).
-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
%% tlsv1.0 and tlsv1.1 is now also considered legacy
%% tlsv1.3 is under development (experimental).
-define(ALL_AVAILABLE_VERSIONS, ['tlsv1.3', 'tlsv1.2', 'tlsv1.1', tlsv1]).
-define(ALL_AVAILABLE_DATAGRAM_VERSIONS, ['dtlsv1.2', dtlsv1]).
%% Defines the default versions when not specified by an ssl option.
-define(ALL_SUPPORTED_VERSIONS, ['tlsv1.3', 'tlsv1.2']).
-define(MIN_SUPPORTED_VERSIONS, ['tlsv1.1']).
%% 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]).
-define(ALL_DATAGRAM_SUPPORTED_VERSIONS, ['dtlsv1.2']).
-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).
%% https://tools.ietf.org/html/rfc8446#section-5.5
%% Limits on Key Usage
%% http://www.isg.rhul.ac.uk/~kp/TLS-AEbounds.pdf
%% Number of records * Record length
%% 2^24.5 * 2^14 = 2^38.5
-define(KEY_USAGE_LIMIT_AES_GCM, 388736063997).
%% This map stores all supported options with default values and
%% list of dependencies:
%% #{<option> => {<default_value>, [<option>]},
%% ...}
-define(RULES,
#{
alpn_advertised_protocols => {undefined, [versions]},
alpn_preferred_protocols => {undefined, [versions]},
anti_replay => {undefined, [versions, session_tickets]},
beast_mitigation => {one_n_minus_one, [versions]},
cacertfile => {undefined, [versions,
verify_fun,
cacerts]},
cacerts => {undefined, [versions]},
cert => {undefined, [versions]},
certfile => {<<>>, [versions]},
ciphers => {[], [versions]},
client_renegotiation => {undefined, [versions]},
cookie => {true, [versions]},
crl_cache => {{ssl_crl_cache, {internal, []}}, [versions]},
crl_check => {false, [versions]},
customize_hostname_check => {[], [versions]},
depth => {10, [versions]},
dh => {undefined, [versions]},
dhfile => {undefined, [versions]},
eccs => {undefined, [versions]},
erl_dist => {false, [versions]},
fail_if_no_peer_cert => {false, [versions]},
fallback => {false, [versions]},
handshake => {full, [versions]},
hibernate_after => {infinity, [versions]},
honor_cipher_order => {false, [versions]},
honor_ecc_order => {undefined, [versions]},
key => {undefined, [versions]},
keyfile => {undefined, [versions,
certfile]},
key_update_at => {?KEY_USAGE_LIMIT_AES_GCM, [versions]},
log_level => {notice, [versions]},
max_handshake_size => {?DEFAULT_MAX_HANDSHAKE_SIZE, [versions]},
middlebox_comp_mode => {true, [versions]},
max_fragment_length => {undefined, [versions]},
next_protocol_selector => {undefined, [versions]},
next_protocols_advertised => {undefined, [versions]},
%% If enable OCSP stapling
ocsp_stapling => {false, [versions]},
%% Optional arg, if give suggestion of OCSP responders
ocsp_responder_certs => {[], [versions,
ocsp_stapling]},
%% Optional arg, if add nonce extension in request
ocsp_nonce => {true, [versions,
ocsp_stapling]},
padding_check => {true, [versions]},
partial_chain => {fun(_) -> unknown_ca end, [versions]},
password => {"", [versions]},
protocol => {tls, []},
psk_identity => {undefined, [versions]},
renegotiate_at => {?DEFAULT_RENEGOTIATE_AT, [versions]},
reuse_session => {undefined, [versions]},
reuse_sessions => {true, [versions]},
secure_renegotiate => {true, [versions]},
keep_secrets => {false, [versions]},
server_name_indication => {undefined, [versions]},
session_tickets => {disabled, [versions]},
signature_algs => {undefined, [versions]},
signature_algs_cert => {undefined, [versions]},
sni_fun => {undefined, [versions,
sni_hosts]},
sni_hosts => {[], [versions]},
srp_identity => {undefined, [versions]},
supported_groups => {undefined, [versions]},
use_ticket => {undefined, [versions]},
user_lookup_fun => {undefined, [versions]},
verify => {verify_none, [versions,
fail_if_no_peer_cert,
partial_chain]},
verify_fun =>
{
{fun(_, {bad_cert, _}, UserState) ->
{valid, UserState};
(_, {extension, #'Extension'{critical = true}}, UserState) ->
%% This extension is marked as critical, so
%% certificate verification should fail if we don't
%% understand the extension. However, this is
%% `verify_none', so let's accept it anyway.
{valid, UserState};
(_, {extension, _}, UserState) ->
{unknown, UserState};
(_, valid, UserState) ->
{valid, UserState};
(_, valid_peer, UserState) ->
{valid, UserState}
end, []},
[versions, verify]},
versions => {[], [protocol]}
}).
-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
trackers,
dtls_handler,
inet_ssl, %% inet options for internal ssl socket
transport_info, %% Callback info
connection_cb
}).
-type state_name() :: hello | abbreviated | certify | cipher | connection.
-type gen_fsm_state_return() :: {next_state, state_name(), any()} |
{next_state, state_name(), any(), timeout()} |
{stop, any(), any()}.
-type ssl_options() :: map().
-endif. % -ifdef(ssl_internal).
|
