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-rw-r--r--lib/ssl/src/Makefile3
-rw-r--r--lib/ssl/src/ssl.app.src1
-rw-r--r--lib/ssl/src/ssl_handshake.hrl2
-rw-r--r--lib/ssl/src/ssl_record.hrl1
-rw-r--r--lib/ssl/src/tls_connection.erl3
-rw-r--r--lib/ssl/src/tls_record.erl16
-rw-r--r--lib/ssl/src/tls_record_1_3.erl260
-rw-r--r--lib/ssl/src/tls_record_1_3.hrl58
8 files changed, 337 insertions, 7 deletions
diff --git a/lib/ssl/src/Makefile b/lib/ssl/src/Makefile
index af36d04a99..d4cb5350d1 100644
--- a/lib/ssl/src/Makefile
+++ b/lib/ssl/src/Makefile
@@ -83,6 +83,7 @@ MODULES= \
tls_socket \
dtls_socket \
tls_record \
+ tls_record_1_3\
dtls_record \
ssl_record \
ssl_v3 \
@@ -95,7 +96,7 @@ INTERNAL_HRL_FILES = \
tls_connection.hrl dtls_connection.hrl ssl_connection.hrl \
ssl_handshake.hrl tls_handshake.hrl tls_handshake_1_3.hrl dtls_handshake.hrl \
ssl_api.hrl ssl_internal.hrl \
- ssl_record.hrl tls_record.hrl dtls_record.hrl ssl_srp.hrl
+ ssl_record.hrl tls_record.hrl tls_record_1_3.hrl dtls_record.hrl ssl_srp.hrl
ERL_FILES= \
$(MODULES:%=%.erl) \
diff --git a/lib/ssl/src/ssl.app.src b/lib/ssl/src/ssl.app.src
index 17173d7c79..0d92c7b447 100644
--- a/lib/ssl/src/ssl.app.src
+++ b/lib/ssl/src/ssl.app.src
@@ -7,6 +7,7 @@
tls_handshake,
tls_handshake_1_3,
tls_record,
+ tls_record_1_3,
tls_socket,
tls_v1,
ssl_v3,
diff --git a/lib/ssl/src/ssl_handshake.hrl b/lib/ssl/src/ssl_handshake.hrl
index 36aefd5e22..b14bc21862 100644
--- a/lib/ssl/src/ssl_handshake.hrl
+++ b/lib/ssl/src/ssl_handshake.hrl
@@ -401,7 +401,7 @@
%% Datagram Transport Layer Security (DTLS) Heartbeat Extension
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Not supported
--define(HEARTBEAT, 15).
+-define(HS_HEARTBEAT, 15).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% RFC 6962 Certificate Transparency
diff --git a/lib/ssl/src/ssl_record.hrl b/lib/ssl/src/ssl_record.hrl
index e8ce50040f..4cb19d9d0d 100644
--- a/lib/ssl/src/ssl_record.hrl
+++ b/lib/ssl/src/ssl_record.hrl
@@ -140,6 +140,7 @@
-define(ALERT, 21).
-define(HANDSHAKE, 22).
-define(APPLICATION_DATA, 23).
+-define(HEARTBEAT, 24).
-define(MAX_PLAIN_TEXT_LENGTH, 16384).
-define(MAX_COMPRESSED_LENGTH, (?MAX_PLAIN_TEXT_LENGTH+1024)).
-define(MAX_CIPHER_TEXT_LENGTH, (?MAX_PLAIN_TEXT_LENGTH+2048)).
diff --git a/lib/ssl/src/tls_connection.erl b/lib/ssl/src/tls_connection.erl
index 8ded2cbff7..af59dda442 100644
--- a/lib/ssl/src/tls_connection.erl
+++ b/lib/ssl/src/tls_connection.erl
@@ -152,9 +152,10 @@ next_record(#state{protocol_buffers =
#protocol_buffers{tls_packets = [], tls_cipher_texts = [CT | Rest]}
= Buffers,
connection_states = ConnStates0,
+ negotiated_version = Version,
ssl_options = #ssl_options{padding_check = Check}} = State) ->
- case tls_record:decode_cipher_text(CT, ConnStates0, Check) of
+ case tls_record:decode_cipher_text(Version, CT, ConnStates0, Check) of
{Plain, ConnStates} ->
{Plain, State#state{protocol_buffers =
Buffers#protocol_buffers{tls_cipher_texts = Rest},
diff --git a/lib/ssl/src/tls_record.erl b/lib/ssl/src/tls_record.erl
index 938b95b7da..7debac7d37 100644
--- a/lib/ssl/src/tls_record.erl
+++ b/lib/ssl/src/tls_record.erl
@@ -41,7 +41,7 @@
-export([encode_plain_text/4]).
%% Decoding
--export([decode_cipher_text/3]).
+-export([decode_cipher_text/4]).
%% Protocol version handling
-export([protocol_version/1, lowest_protocol_version/1, lowest_protocol_version/2,
@@ -106,6 +106,8 @@ get_tls_records(Data, Versions, Buffer, SslOpts) ->
%
%% Description: Encodes a handshake message to send on the ssl-socket.
%%--------------------------------------------------------------------
+encode_handshake(Frag, {3, 4}, ConnectionStates) ->
+ tls_record_1_3:encode_handshake(Frag, ConnectionStates);
encode_handshake(Frag, Version,
#{current_write :=
#{beast_mitigation := BeastMitigation,
@@ -126,6 +128,8 @@ encode_handshake(Frag, Version,
%%
%% Description: Encodes an alert message to send on the ssl-socket.
%%--------------------------------------------------------------------
+encode_alert_record(Alert, {3, 4}, ConnectionStates) ->
+ tls_record_1_3:encode_handshake(Alert, ConnectionStates);
encode_alert_record(#alert{level = Level, description = Description},
Version, ConnectionStates) ->
encode_plain_text(?ALERT, Version, <<?BYTE(Level), ?BYTE(Description)>>,
@@ -146,6 +150,8 @@ encode_change_cipher_spec(Version, ConnectionStates) ->
%%
%% Description: Encodes data to send on the ssl-socket.
%%--------------------------------------------------------------------
+encode_data(Data, {3, 4}, ConnectionStates) ->
+ tls_record_1_3:encode_data(Data, ConnectionStates);
encode_data(Frag, Version,
#{current_write := #{beast_mitigation := BeastMitigation,
security_parameters :=
@@ -159,12 +165,14 @@ encode_data(Frag, Version,
%%====================================================================
%%--------------------------------------------------------------------
--spec decode_cipher_text(#ssl_tls{}, ssl_record:connection_states(), boolean()) ->
+-spec decode_cipher_text(tls_version(), #ssl_tls{}, ssl_record:connection_states(), boolean()) ->
{#ssl_tls{}, ssl_record:connection_states()}| #alert{}.
%%
%% Description: Decode cipher text
%%--------------------------------------------------------------------
-decode_cipher_text(#ssl_tls{type = Type, version = Version,
+decode_cipher_text({3,4}, CipherTextRecord, ConnectionStates, _) ->
+ tls_record_1_3:decode_cipher_text(CipherTextRecord, ConnectionStates);
+decode_cipher_text(_, #ssl_tls{type = Type, version = Version,
fragment = CipherFragment} = CipherText,
#{current_read :=
#{compression_state := CompressionS0,
@@ -193,7 +201,7 @@ decode_cipher_text(#ssl_tls{type = Type, version = Version,
Alert
end;
-decode_cipher_text(#ssl_tls{type = Type, version = Version,
+decode_cipher_text(_, #ssl_tls{type = Type, version = Version,
fragment = CipherFragment} = CipherText,
#{current_read :=
#{compression_state := CompressionS0,
diff --git a/lib/ssl/src/tls_record_1_3.erl b/lib/ssl/src/tls_record_1_3.erl
new file mode 100644
index 0000000000..ff198a09bf
--- /dev/null
+++ b/lib/ssl/src/tls_record_1_3.erl
@@ -0,0 +1,260 @@
+%%
+%% %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%
+
+-module(tls_record_1_3).
+
+-include("tls_record.hrl").
+-include("tls_record_1_3.hrl").
+-include("ssl_internal.hrl").
+-include("ssl_alert.hrl").
+-include("ssl_cipher.hrl").
+
+%% Encoding
+-export([encode_handshake/2, encode_alert_record/2,
+ encode_data/2]).
+-export([encode_plain_text/3]).
+
+%% Decoding
+-export([decode_cipher_text/2]).
+
+%%====================================================================
+%% Encoding
+%%====================================================================
+
+%%--------------------------------------------------------------------
+-spec encode_handshake(iolist(), ssl_record:connection_states()) ->
+ {iolist(), ssl_record:connection_states()}.
+%
+%% Description: Encodes a handshake message to send on the tls-1.3-socket.
+%%--------------------------------------------------------------------
+encode_handshake(Frag, ConnectionStates) ->
+ case iolist_size(Frag) of
+ N when N > ?MAX_PLAIN_TEXT_LENGTH ->
+ %% TODO: Consider padding here
+ Data = split_bin(iolist_to_binary(Frag), ?MAX_PLAIN_TEXT_LENGTH),
+ encode_iolist(?HANDSHAKE, Data, ConnectionStates);
+ _ ->
+ encode_plain_text(?HANDSHAKE, Frag, ConnectionStates)
+ end.
+
+%%--------------------------------------------------------------------
+-spec encode_alert_record(#alert{}, ssl_record:connection_states()) ->
+ {iolist(), ssl_record:connection_states()}.
+%%
+%% Description: Encodes an alert message to send on the ssl-socket.
+%%--------------------------------------------------------------------
+encode_alert_record(#alert{level = Level, description = Description},
+ ConnectionStates) ->
+ encode_plain_text(?ALERT, <<?BYTE(Level), ?BYTE(Description)>>,
+ ConnectionStates).
+%%--------------------------------------------------------------------
+-spec encode_data(binary(), ssl_record:connection_states()) ->
+ {iolist(), ssl_record:connection_states()}.
+%%
+%% Description: Encodes data to send on the ssl-socket.
+%%--------------------------------------------------------------------
+encode_data(Frag, ConnectionStates) ->
+ Data = split_bin(Frag, ?MAX_PLAIN_TEXT_LENGTH, {3,4}),
+ encode_iolist(?APPLICATION_DATA, Data, ConnectionStates).
+
+encode_plain_text(Type, Data0, #{current_write := Write0} = ConnectionStates) ->
+ PadLen = 0, %% TODO where to specify PadLen?
+ Data = inner_plaintext(Type, Data0, PadLen),
+ {CipherFragment, Write1} = encode_plain_text(Data, Write0),
+ {CipherText, Write} = encode_tls_cipher_text(CipherFragment, Write1),
+ {CipherText, ConnectionStates#{current_write => Write}}.
+
+encode_iolist(Type, Data, ConnectionStates0) ->
+ {ConnectionStates, EncodedMsg} =
+ lists:foldl(fun(Text, {CS0, Encoded}) ->
+ {Enc, CS1} =
+ encode_plain_text(Type, Text, CS0),
+ {CS1, [Enc | Encoded]}
+ end, {ConnectionStates0, []}, Data),
+ {lists:reverse(EncodedMsg), ConnectionStates}.
+
+%%====================================================================
+%% Decoding
+%%====================================================================
+
+%%--------------------------------------------------------------------
+-spec decode_cipher_text(#ssl_tls{}, ssl_record:connection_states()) ->
+ {#ssl_tls{}, ssl_record:connection_states()}| #alert{}.
+%%
+%% Description: Decode cipher text, use legacy type ssl_tls instead of tls_cipher_text
+%% in decoding context so that we can reuse the code from erlier versions.
+%%--------------------------------------------------------------------
+decode_cipher_text(#ssl_tls{type = ?OPAQUE_TYPE,
+ version = ?LEGACY_VERSION,
+ fragment = CipherFragment},
+ #{current_read :=
+ #{sequence_number := Seq,
+ cipher_state := CipherS0,
+ security_parameters :=
+ #security_parameters{
+ cipher_type = ?AEAD,
+ bulk_cipher_algorithm =
+ BulkCipherAlgo}
+ } = ReadState0} = ConnnectionStates0) ->
+ AAD = start_additional_data(),
+ CipherS1 = ssl_cipher:nonce_seed(<<?UINT64(Seq)>>, CipherS0),
+ case decipher_aead(BulkCipherAlgo, CipherS1, AAD, CipherFragment) of
+ {PlainFragment, CipherS1} ->
+ ConnnectionStates =
+ ConnnectionStates0#{current_read =>
+ ReadState0#{cipher_state => CipherS1,
+ sequence_number => Seq + 1}},
+ decode_inner_plaintext(PlainFragment, ConnnectionStates);
+ #alert{} = Alert ->
+ Alert
+ end;
+decode_cipher_text(#ssl_tls{type = Type}, _) ->
+ %% Version mismatch is already asserted
+ ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC, {record_typ_mismatch, Type}).
+
+%%--------------------------------------------------------------------
+%%% Internal functions
+%%--------------------------------------------------------------------
+split_bin(Bin, ChunkSize) ->
+ split_bin(Bin, ChunkSize, []).
+split_bin(Bin, ChunkSize, _) ->
+ do_split_bin(Bin, ChunkSize, []).
+
+do_split_bin(<<>>, _, Acc) ->
+ lists:reverse(Acc);
+do_split_bin(Bin, ChunkSize, Acc) ->
+ case Bin of
+ <<Chunk:ChunkSize/binary, Rest/binary>> ->
+ do_split_bin(Rest, ChunkSize, [Chunk | Acc]);
+ _ ->
+ lists:reverse(Acc, [Bin])
+ end.
+
+inner_plaintext(Type, Data, Length) ->
+ #inner_plaintext{
+ content = Data,
+ type = Type,
+ zeros = zero_padding(Length)
+ }.
+zero_padding(Length)->
+ binary:copy(<<?BYTE(0)>>, Length).
+
+encode_plain_text(#inner_plaintext{
+ content = Data,
+ type = Type,
+ zeros = Zeros
+ }, #{cipher_state := CipherS0,
+ sequence_number := Seq,
+ security_parameters :=
+ #security_parameters{
+ cipher_type = ?AEAD}
+ } = WriteState0) ->
+ PlainText = <<Data/binary, ?BYTE(Type), Zeros/binary>>,
+ AAD = start_additional_data(),
+ CipherS1 = ssl_cipher:nonce_seed(<<?UINT64(Seq)>>, CipherS0),
+ {Encoded, WriteState} = cipher_aead(PlainText, WriteState0#{cipher_state => CipherS1}, AAD),
+ {#tls_cipher_text{encoded_record = Encoded}, WriteState};
+encode_plain_text(_, CS) ->
+ exit({cs, CS}).
+
+start_additional_data() ->
+ {MajVer, MinVer} = ?LEGACY_VERSION,
+ <<?BYTE(?OPAQUE_TYPE), ?BYTE(MajVer), ?BYTE(MinVer)>>.
+
+end_additional_data(AAD, Len) ->
+ <<AAD/binary, ?UINT16(Len)>>.
+
+nonce(#cipher_state{nonce = Nonce, iv = IV}) ->
+ Len = size(IV),
+ crypto:exor(<<Nonce:Len/bytes>>, IV).
+
+cipher_aead(Fragment,
+ #{cipher_state := CipherS0,
+ security_parameters :=
+ #security_parameters{bulk_cipher_algorithm =
+ BulkCipherAlgo}
+ } = WriteState0, AAD) ->
+ {CipherFragment, CipherS1} =
+ cipher_aead(BulkCipherAlgo, CipherS0, AAD, Fragment),
+ {CipherFragment, WriteState0#{cipher_state => CipherS1}}.
+
+cipher_aead(Type, #cipher_state{key=Key} = CipherState, AAD0, Fragment) ->
+ AAD = end_additional_data(AAD0, erlang:iolist_size(Fragment)),
+ Nonce = nonce(CipherState),
+ {Content, CipherTag} = ssl_cipher:aead_encrypt(Type, Key, Nonce, Fragment, AAD),
+ {<<Content/binary, CipherTag/binary>>, CipherState}.
+
+encode_tls_cipher_text(#tls_cipher_text{opaque_type = Type,
+ legacy_version = {MajVer, MinVer},
+ encoded_record = Encoded}, #{sequence_number := Seq} = Write) ->
+ Length = erlang:iolist_size(Encoded),
+ {[<<?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer), ?UINT16(Length)>>, Encoded],
+ Write#{sequence_number => Seq +1}}.
+
+decipher_aead(Type, #cipher_state{key = Key} = CipherState, AAD0, CipherFragment) ->
+ try
+ Nonce = nonce(CipherState),
+ {AAD, CipherText, CipherTag} = aead_ciphertext_split(CipherState, CipherFragment, AAD0),
+ case ssl_cipher:aead_decrypt(Type, Key, Nonce, CipherText, CipherTag, AAD) of
+ Content when is_binary(Content) ->
+ {Content, CipherState};
+ _ ->
+ ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC, decryption_failed)
+ end
+ catch
+ _:_ ->
+ ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC, decryption_failed)
+ end.
+
+aead_ciphertext_split(#cipher_state{tag_len = Len}, CipherTextFragment, AAD) ->
+ CipherLen = size(CipherTextFragment) - Len,
+ <<CipherText:CipherLen/bytes, CipherTag:Len/bytes>> = CipherTextFragment,
+ {end_additional_data(AAD, CipherLen), CipherText, CipherTag}.
+
+decode_inner_plaintext(PlainText, ConnnectionStates) ->
+ case remove_padding(PlainText) of
+ #alert{} = Alert ->
+ Alert;
+ {Data, Type} ->
+ {#ssl_tls{type = Type,
+ version = {3,4}, %% Internally use real version
+ fragment = Data}, ConnnectionStates}
+ end.
+
+remove_padding(PlainText)->
+ case binary:split(PlainText, <<0>>, [global, trim]) of
+ [] ->
+ ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE, padding_error);
+ [Content] ->
+ Type = binary:last(Content),
+ split_content(Type, Content, erlang:byte_size(Content) - 1)
+ end.
+
+split_content(?HANDSHAKE, _, 0) ->
+ ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE, empty_handshake);
+split_content(?ALERT, _, 0) ->
+ ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE, empty_alert);
+%% For special middlebox compatible case!
+split_content(?CHANGE_CIPHER_SPEC, _, 0) ->
+ ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE, empty_change_cipher_spec);
+split_content(?APPLICATION_DATA = Type, _, 0) ->
+ {Type, <<>>};
+split_content(Type, Content, N) ->
+ <<Data:N/bytes, ?BYTE(Type)>> = Content,
+ {Type, Data}.
diff --git a/lib/ssl/src/tls_record_1_3.hrl b/lib/ssl/src/tls_record_1_3.hrl
new file mode 100644
index 0000000000..273427a34e
--- /dev/null
+++ b/lib/ssl/src/tls_record_1_3.hrl
@@ -0,0 +1,58 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2018-2018. 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: Record and constant defenitions for the TLS-1.3-record protocol
+%% see RFC 8446 not present in earlier versions
+%%----------------------------------------------------------------------
+
+-ifndef(tls_record_1_3).
+-define(tls_record_1_3, true).
+
+%% enum {
+%% invalid(0),
+%% %% defined in ssl_record.hrl
+%% change_cipher_spec(20),
+%% alert(21),
+%% handshake(22),
+%% application_data(23),
+%% heartbeat(24), /* RFC 6520 */
+%% (255)
+%% } ContentType;
+
+-define(INVALID, 0).
+-define(LEGACY_VERSION, {3,3}).
+-define(OPAQUE_TYPE, 23).
+
+-record(inner_plaintext, {
+ content, %% data
+ type, %% Contentype
+ zeros %% padding "uint8 zeros[length_of_padding]"
+ }).
+-record(tls_cipher_text, { %% Equivalent of encrypted version of #ssl_tls from previous versions
+ %% decrypted version will still use #ssl_tls for code reuse purposes
+ %% with real values for content type and version
+ opaque_type = ?OPAQUE_TYPE,
+ legacy_version = ?LEGACY_VERSION,
+ encoded_record
+ }).
+
+-endif. % -ifdef(tls_record_1_3).
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-22 01:23:49 +0000