aboutsummaryrefslogtreecommitdiffstats
path: root/lib/ssl/src
diff options
context:
space:
mode:
authorRaimo Niskanen <[email protected]>2019-02-21 14:46:55 +0100
committerRaimo Niskanen <[email protected]>2019-02-21 14:46:55 +0100
commitae625370738fe0c37d5e578814a9bead378ebb0a (patch)
tree2dfae636678ecc336fdf86e0deb71b03fc34e0f3 /lib/ssl/src
parent388fe9d0ef5d2ccae6a9c07da2d36ac568dd250f (diff)
parent9e9884640b7d0ee69cd39909842ec5fc8826859f (diff)
downloadotp-ae625370738fe0c37d5e578814a9bead378ebb0a.tar.gz
otp-ae625370738fe0c37d5e578814a9bead378ebb0a.tar.bz2
otp-ae625370738fe0c37d5e578814a9bead378ebb0a.zip
Merge branch 'maint'
* maint: Inline local function Optimize binary matching Clean up module boundaries Remove redundant return of CipherState Use iovec() internally in send path Small binary handling optimizations Optimize read_application_data with Okasaki queue Try to optimize decode_cipher_text/3 Optimize application data aggregation Optimize TLS record parsing with Okasaki queue Cache strong_random_bytes for IV Optimize padding Produce less garbage in encrypt loop Reorganize #data{} Tidy up state machine Add server GC info to bench results Conflicts: lib/ssl/src/ssl_cipher.erl lib/ssl/src/ssl_connection.erl lib/ssl/src/ssl_connection.hrl lib/ssl/src/ssl_logger.erl lib/ssl/src/ssl_record.erl lib/ssl/src/ssl_record.hrl lib/ssl/src/tls_connection.erl lib/ssl/src/tls_record.erl lib/ssl/src/tls_sender.erl
Diffstat (limited to 'lib/ssl/src')
-rw-r--r--lib/ssl/src/dtls_connection.erl27
-rw-r--r--lib/ssl/src/dtls_record.erl16
-rw-r--r--lib/ssl/src/ssl.erl4
-rw-r--r--lib/ssl/src/ssl_cipher.erl101
-rw-r--r--lib/ssl/src/ssl_connection.erl382
-rw-r--r--lib/ssl/src/ssl_connection.hrl6
-rw-r--r--lib/ssl/src/ssl_logger.erl14
-rw-r--r--lib/ssl/src/ssl_record.erl72
-rw-r--r--lib/ssl/src/ssl_record.hrl4
-rw-r--r--lib/ssl/src/tls_connection.erl166
-rw-r--r--lib/ssl/src/tls_record.erl441
-rw-r--r--lib/ssl/src/tls_sender.erl294
12 files changed, 920 insertions, 607 deletions
diff --git a/lib/ssl/src/dtls_connection.erl b/lib/ssl/src/dtls_connection.erl
index d5460bae34..6b5a311efc 100644
--- a/lib/ssl/src/dtls_connection.erl
+++ b/lib/ssl/src/dtls_connection.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2013-2018. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2019. 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.
@@ -51,8 +51,7 @@
-export([encode_alert/3, send_alert/2, send_alert_in_connection/2, close/5, protocol_name/0]).
%% Data handling
--export([encode_data/3, next_record/1,
- send/3, socket/5, setopts/3, getopts/3]).
+-export([next_record/1, socket/4, setopts/3, getopts/3]).
%% gen_statem state functions
-export([init/3, error/3, downgrade/3, %% Initiation and take down states
@@ -393,16 +392,13 @@ protocol_name() ->
%% Data handling
%%====================================================================
-encode_data(Data, Version, ConnectionStates0)->
- dtls_record:encode_data(Data, Version, ConnectionStates0).
+send(Transport, {Listener, Socket}, Data) when is_pid(Listener) -> % Server socket
+ dtls_socket:send(Transport, Socket, Data);
+send(Transport, Socket, Data) -> % Client socket
+ dtls_socket:send(Transport, Socket, Data).
-send(Transport, {_, {{_,_}, _} = Socket}, Data) ->
- send(Transport, Socket, Data);
-send(Transport, Socket, Data) ->
- dtls_socket:send(Transport, Socket, Data).
-
-socket(Pid, Transport, Socket, Connection, _) ->
- dtls_socket:socket(Pid, Transport, Socket, Connection).
+socket(Pid, Transport, Socket, _Tracker) ->
+ dtls_socket:socket(Pid, Transport, Socket, ?MODULE).
setopts(Transport, Socket, Other) ->
dtls_socket:setopts(Transport, Socket, Other).
@@ -806,7 +802,7 @@ initial_state(Role, Host, Port, Socket, {SSLOptions, SocketOptions, _}, User,
session = #session{is_resumable = new},
connection_states = ConnectionStates,
protocol_buffers = #protocol_buffers{},
- user_data_buffer = <<>>,
+ user_data_buffer = {[],0,[]},
start_or_recv_from = undefined,
flight_buffer = new_flight(),
protocol_specific = #{flight_state => initial_flight_state(DataTag)}
@@ -1174,7 +1170,6 @@ log_ignore_alert(_, _, _, _) ->
send_application_data(Data, From, _StateName,
#state{static_env = #static_env{socket = Socket,
- protocol_cb = Connection,
transport_cb = Transport},
connection_env = #connection_env{negotiated_version = Version},
handshake_env = HsEnv,
@@ -1187,9 +1182,9 @@ send_application_data(Data, From, _StateName,
[{next_event, {call, From}, {application_data, Data}}]);
false ->
{Msgs, ConnectionStates} =
- Connection:encode_data(Data, Version, ConnectionStates0),
+ dtls_record:encode_data(Data, Version, ConnectionStates0),
State = State0#state{connection_states = ConnectionStates},
- case Connection:send(Transport, Socket, Msgs) of
+ case send(Transport, Socket, Msgs) of
ok ->
ssl_connection:hibernate_after(connection, State, [{reply, From, ok}]);
Result ->
diff --git a/lib/ssl/src/dtls_record.erl b/lib/ssl/src/dtls_record.erl
index dd33edfd77..2fe875da31 100644
--- a/lib/ssl/src/dtls_record.erl
+++ b/lib/ssl/src/dtls_record.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2013-2018. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2019. 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.
@@ -546,15 +546,15 @@ decode_cipher_text(#ssl_tls{type = Type, version = Version,
compression_algorithm = CompAlg}} = ReadState0,
ConnnectionStates0) ->
AAD = start_additional_data(Type, Version, Epoch, Seq),
- CipherS1 = ssl_record:nonce_seed(BulkCipherAlgo, <<?UINT16(Epoch), ?UINT48(Seq)>>, CipherS0),
+ CipherS = ssl_record:nonce_seed(BulkCipherAlgo, <<?UINT16(Epoch), ?UINT48(Seq)>>, CipherS0),
TLSVersion = dtls_v1:corresponding_tls_version(Version),
- case ssl_record:decipher_aead(BulkCipherAlgo, CipherS1, AAD, CipherFragment, TLSVersion) of
- {PlainFragment, CipherState} ->
- {Plain, CompressionS1} = ssl_record:uncompress(CompAlg,
+ case ssl_record:decipher_aead(BulkCipherAlgo, CipherS, AAD, CipherFragment, TLSVersion) of
+ PlainFragment when is_binary(PlainFragment) ->
+ {Plain, CompressionS} = ssl_record:uncompress(CompAlg,
PlainFragment, CompressionS0),
- ReadState0 = ReadState0#{compression_state => CompressionS1,
- cipher_state => CipherState},
- ReadState = update_replay_window(Seq, ReadState0),
+ ReadState1 = ReadState0#{compression_state := CompressionS,
+ cipher_state := CipherS},
+ ReadState = update_replay_window(Seq, ReadState1),
ConnnectionStates = set_connection_state_by_epoch(ReadState, Epoch, ConnnectionStates0, read),
{CipherText#ssl_tls{fragment = Plain}, ConnnectionStates};
#alert{} = Alert ->
diff --git a/lib/ssl/src/ssl.erl b/lib/ssl/src/ssl.erl
index 980b773a84..a50960c1a3 100644
--- a/lib/ssl/src/ssl.erl
+++ b/lib/ssl/src/ssl.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2018. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2019. 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.
@@ -655,7 +655,7 @@ close(#sslsocket{pid = {ListenSocket, #config{transport_info={Transport,_, _, _}
send(#sslsocket{pid = [Pid]}, Data) when is_pid(Pid) ->
ssl_connection:send(Pid, Data);
send(#sslsocket{pid = [_, Pid]}, Data) when is_pid(Pid) ->
- tls_sender:send_data(Pid, erlang:iolist_to_binary(Data));
+ tls_sender:send_data(Pid, erlang:iolist_to_iovec(Data));
send(#sslsocket{pid = {_, #config{transport_info={_, udp, _, _}}}}, _) ->
{error,enotconn}; %% Emulate connection behaviour
send(#sslsocket{pid = {dtls,_}}, _) ->
diff --git a/lib/ssl/src/ssl_cipher.erl b/lib/ssl/src/ssl_cipher.erl
index 873572e231..6e751f9ceb 100644
--- a/lib/ssl/src/ssl_cipher.erl
+++ b/lib/ssl/src/ssl_cipher.erl
@@ -1,7 +1,7 @@
%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2018. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2019. 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.
@@ -42,7 +42,7 @@
rc4_suites/1, des_suites/1, rsa_suites/1,
filter/3, filter_suites/1, filter_suites/2,
hash_algorithm/1, sign_algorithm/1, is_acceptable_hash/2, is_fallback/1,
- random_bytes/1, calc_mac_hash/4,
+ random_bytes/1, calc_mac_hash/4, calc_mac_hash/6,
is_stream_ciphersuite/1, signature_scheme/1,
scheme_to_components/1, hash_size/1, effective_key_bits/1,
key_material/1]).
@@ -112,7 +112,8 @@ cipher_init(?AES_GCM, IV, Key) ->
cipher_init(?CHACHA20_POLY1305, IV, Key) ->
#cipher_state{iv = IV, key = Key, tag_len = 16};
cipher_init(_BCA, IV, Key) ->
- #cipher_state{iv = IV, key = Key}.
+ %% Initialize random IV cache, not used for aead ciphers
+ #cipher_state{iv = IV, key = Key, state = <<>>}.
nonce_seed(Seed, CipherState) ->
CipherState#cipher_state{nonce = Seed}.
@@ -127,12 +128,11 @@ nonce_seed(Seed, CipherState) ->
%% data is calculated and the data plus the HMAC is ecncrypted.
%%-------------------------------------------------------------------
cipher(?NULL, CipherState, <<>>, Fragment, _Version) ->
- GenStreamCipherList = [Fragment, <<>>],
- {GenStreamCipherList, CipherState};
+ {iolist_to_binary(Fragment), CipherState};
cipher(?RC4, CipherState = #cipher_state{state = State0}, Mac, Fragment, _Version) ->
GenStreamCipherList = [Fragment, Mac],
{State1, T} = crypto:stream_encrypt(State0, GenStreamCipherList),
- {T, CipherState#cipher_state{state = State1}};
+ {iolist_to_binary(T), CipherState#cipher_state{state = State1}};
cipher(?DES, CipherState, Mac, Fragment, Version) ->
block_cipher(fun(Key, IV, T) ->
crypto:block_encrypt(des_cbc, Key, IV, T)
@@ -161,8 +161,7 @@ aead_type(?CHACHA20_POLY1305) ->
build_cipher_block(BlockSz, Mac, Fragment) ->
TotSz = byte_size(Mac) + erlang:iolist_size(Fragment) + 1,
- {PaddingLength, Padding} = get_padding(TotSz, BlockSz),
- [Fragment, Mac, PaddingLength, Padding].
+ [Fragment, Mac, padding_with_len(TotSz, BlockSz)].
block_cipher(Fun, BlockSz, #cipher_state{key=Key, iv=IV} = CS0,
Mac, Fragment, {3, N})
@@ -172,14 +171,21 @@ block_cipher(Fun, BlockSz, #cipher_state{key=Key, iv=IV} = CS0,
NextIV = next_iv(T, IV),
{T, CS0#cipher_state{iv=NextIV}};
-block_cipher(Fun, BlockSz, #cipher_state{key=Key, iv=IV} = CS0,
+block_cipher(Fun, BlockSz, #cipher_state{key=Key, iv=IV, state = IV_Cache0} = CS0,
Mac, Fragment, {3, N})
when N == 2; N == 3; N == 4 ->
- NextIV = random_iv(IV),
+ IV_Size = byte_size(IV),
+ <<NextIV:IV_Size/binary, IV_Cache/binary>> =
+ case IV_Cache0 of
+ <<>> ->
+ random_bytes(IV_Size bsl 5); % 32 IVs
+ _ ->
+ IV_Cache0
+ end,
L0 = build_cipher_block(BlockSz, Mac, Fragment),
L = [NextIV|L0],
T = Fun(Key, IV, L),
- {T, CS0#cipher_state{iv=NextIV}}.
+ {T, CS0#cipher_state{iv=NextIV, state = IV_Cache}}.
%%--------------------------------------------------------------------
-spec decipher(cipher_enum(), integer(), #cipher_state{}, binary(),
@@ -654,12 +660,13 @@ random_bytes(N) ->
calc_mac_hash(Type, Version,
PlainFragment, #{sequence_number := SeqNo,
mac_secret := MacSecret,
- security_parameters:=
- SecPars}) ->
+ security_parameters :=
+ #security_parameters{mac_algorithm = MacAlgorithm}}) ->
+ calc_mac_hash(Type, Version, PlainFragment, MacAlgorithm, MacSecret, SeqNo).
+%%
+calc_mac_hash(Type, Version, PlainFragment, MacAlgorithm, MacSecret, SeqNo) ->
Length = erlang:iolist_size(PlainFragment),
- mac_hash(Version, SecPars#security_parameters.mac_algorithm,
- MacSecret, SeqNo, Type,
- Length, PlainFragment).
+ mac_hash(Version, MacAlgorithm, MacSecret, SeqNo, Type, Length, PlainFragment).
is_stream_ciphersuite(#{cipher := rc4_128}) ->
true;
@@ -765,7 +772,6 @@ expanded_key_material(Cipher) when Cipher == aes_128_cbc;
Cipher == chacha20_poly1305 ->
unknown.
-
effective_key_bits(null) ->
0;
effective_key_bits(des_cbc) ->
@@ -785,18 +791,15 @@ iv_size(Cipher) when Cipher == null;
Cipher == rc4_128;
Cipher == chacha20_poly1305->
0;
-
iv_size(Cipher) when Cipher == aes_128_gcm;
Cipher == aes_256_gcm ->
4;
-
iv_size(Cipher) ->
block_size(Cipher).
block_size(Cipher) when Cipher == des_cbc;
Cipher == '3des_ede_cbc' ->
8;
-
block_size(Cipher) when Cipher == aes_128_cbc;
Cipher == aes_256_cbc;
Cipher == aes_128_gcm;
@@ -963,21 +966,51 @@ is_correct_padding(GenBlockCipher, {3, 1}, false) ->
%% Padding must be checked in TLS 1.1 and after
is_correct_padding(#generic_block_cipher{padding_length = Len,
padding = Padding}, _, _) ->
- Len == byte_size(Padding) andalso
- binary:copy(?byte(Len), Len) == Padding.
-
-get_padding(Length, BlockSize) ->
- get_padding_aux(BlockSize, Length rem BlockSize).
-
-get_padding_aux(_, 0) ->
- {0, <<>>};
-get_padding_aux(BlockSize, PadLength) ->
- N = BlockSize - PadLength,
- {N, binary:copy(?byte(N), N)}.
+ (Len == byte_size(Padding)) andalso (padding(Len) == Padding).
+
+padding(PadLen) ->
+ case PadLen of
+ 0 -> <<>>;
+ 1 -> <<1>>;
+ 2 -> <<2,2>>;
+ 3 -> <<3,3,3>>;
+ 4 -> <<4,4,4,4>>;
+ 5 -> <<5,5,5,5,5>>;
+ 6 -> <<6,6,6,6,6,6>>;
+ 7 -> <<7,7,7,7,7,7,7>>;
+ 8 -> <<8,8,8,8,8,8,8,8>>;
+ 9 -> <<9,9,9,9,9,9,9,9,9>>;
+ 10 -> <<10,10,10,10,10,10,10,10,10,10>>;
+ 11 -> <<11,11,11,11,11,11,11,11,11,11,11>>;
+ 12 -> <<12,12,12,12,12,12,12,12,12,12,12,12>>;
+ 13 -> <<13,13,13,13,13,13,13,13,13,13,13,13,13>>;
+ 14 -> <<14,14,14,14,14,14,14,14,14,14,14,14,14,14>>;
+ 15 -> <<15,15,15,15,15,15,15,15,15,15,15,15,15,15,15>>;
+ _ ->
+ binary:copy(<<PadLen>>, PadLen)
+ end.
-random_iv(IV) ->
- IVSz = byte_size(IV),
- random_bytes(IVSz).
+padding_with_len(TextLen, BlockSize) ->
+ case BlockSize - (TextLen rem BlockSize) of
+ 0 -> <<0>>;
+ 1 -> <<1,1>>;
+ 2 -> <<2,2,2>>;
+ 3 -> <<3,3,3,3>>;
+ 4 -> <<4,4,4,4,4>>;
+ 5 -> <<5,5,5,5,5,5>>;
+ 6 -> <<6,6,6,6,6,6,6>>;
+ 7 -> <<7,7,7,7,7,7,7,7>>;
+ 8 -> <<8,8,8,8,8,8,8,8,8>>;
+ 9 -> <<9,9,9,9,9,9,9,9,9,9>>;
+ 10 -> <<10,10,10,10,10,10,10,10,10,10,10>>;
+ 11 -> <<11,11,11,11,11,11,11,11,11,11,11,11>>;
+ 12 -> <<12,12,12,12,12,12,12,12,12,12,12,12,12>>;
+ 13 -> <<13,13,13,13,13,13,13,13,13,13,13,13,13,13>>;
+ 14 -> <<14,14,14,14,14,14,14,14,14,14,14,14,14,14,14>>;
+ 15 -> <<15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15>>;
+ PadLen ->
+ binary:copy(<<PadLen>>, PadLen + 1)
+ end.
next_iv(Bin, IV) ->
BinSz = byte_size(Bin),
diff --git a/lib/ssl/src/ssl_connection.erl b/lib/ssl/src/ssl_connection.erl
index 08d2fae925..f194610d72 100644
--- a/lib/ssl/src/ssl_connection.erl
+++ b/lib/ssl/src/ssl_connection.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2013-2018. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2019. 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.
@@ -71,7 +71,7 @@
-export([terminate/3, format_status/2]).
%% Erlang Distribution export
--export([get_sslsocket/1, dist_handshake_complete/2]).
+-export([dist_handshake_complete/2]).
%%====================================================================
%% Setup
@@ -183,19 +183,19 @@ socket_control(Connection, Socket, Pid, Transport) ->
%%--------------------------------------------------------------------
socket_control(Connection, Socket, Pids, Transport, udp_listener) ->
%% dtls listener process must have the socket control
- {ok, Connection:socket(Pids, Transport, Socket, Connection, undefined)};
+ {ok, Connection:socket(Pids, Transport, Socket, undefined)};
socket_control(tls_connection = Connection, Socket, [Pid|_] = Pids, Transport, ListenTracker) ->
case Transport:controlling_process(Socket, Pid) of
ok ->
- {ok, Connection:socket(Pids, Transport, Socket, Connection, ListenTracker)};
+ {ok, Connection:socket(Pids, Transport, Socket, ListenTracker)};
{error, Reason} ->
{error, Reason}
end;
socket_control(dtls_connection = Connection, {_, Socket}, [Pid|_] = Pids, Transport, ListenTracker) ->
case Transport:controlling_process(Socket, Pid) of
ok ->
- {ok, Connection:socket(Pids, Transport, Socket, Connection, ListenTracker)};
+ {ok, Connection:socket(Pids, Transport, Socket, ListenTracker)};
{error, Reason} ->
{error, Reason}
end.
@@ -212,9 +212,9 @@ socket_control(dtls_connection = Connection, {_, Socket}, [Pid|_] = Pids, Transp
%%--------------------------------------------------------------------
send(Pid, Data) ->
call(Pid, {application_data,
- %% iolist_to_binary should really
- %% be called iodata_to_binary()
- erlang:iolist_to_binary(Data)}).
+ %% iolist_to_iovec should really
+ %% be called iodata_to_iovec()
+ erlang:iolist_to_iovec(Data)}).
%%--------------------------------------------------------------------
-spec recv(pid(), integer(), timeout()) ->
@@ -312,9 +312,6 @@ renegotiation(ConnectionPid) ->
internal_renegotiation(ConnectionPid, #{current_write := WriteState}) ->
gen_statem:cast(ConnectionPid, {internal_renegotiate, WriteState}).
-get_sslsocket(ConnectionPid) ->
- call(ConnectionPid, get_sslsocket).
-
dist_handshake_complete(ConnectionPid, DHandle) ->
gen_statem:cast(ConnectionPid, {dist_handshake_complete, DHandle}).
@@ -446,11 +443,10 @@ handle_alert(#alert{level = ?WARNING} = Alert, StateName,
%%====================================================================
%% Data handling
%%====================================================================
-passive_receive(State0 = #state{user_data_buffer = Buffer}, StateName, Connection, StartTimerAction) ->
- case Buffer of
- <<>> ->
- {Record, State} = Connection:next_record(State0),
- Connection:next_event(StateName, Record, State, StartTimerAction);
+passive_receive(State0 = #state{user_data_buffer = {_,BufferSize,_}}, StateName, Connection, StartTimerAction) ->
+ case BufferSize of
+ 0 ->
+ Connection:next_event(StateName, no_record, State0, StartTimerAction);
_ ->
case read_application_data(<<>>, State0) of
{stop, _, _} = ShutdownError ->
@@ -470,101 +466,227 @@ passive_receive(State0 = #state{user_data_buffer = Buffer}, StateName, Connectio
read_application_data(
Data,
#state{
- user_data_buffer = Buffer0,
+ user_data_buffer = {Front0,BufferSize0,Rear0},
connection_env = #connection_env{erl_dist_handle = DHandle}} = State) ->
%%
- Buffer = bincat(Buffer0, Data),
+ Front = Front0,
+ BufferSize = BufferSize0 + byte_size(Data),
+ Rear = [Data|Rear0],
case DHandle of
undefined ->
- #state{
- socket_options = SocketOpts,
- bytes_to_read = BytesToRead,
- start_or_recv_from = RecvFrom} = State,
- read_application_data(
- Buffer, State, SocketOpts, RecvFrom, BytesToRead);
+ read_application_data(State, Front, BufferSize, Rear);
_ ->
- try read_application_dist_data(Buffer, State, DHandle)
+ try read_application_dist_data(DHandle, Front, BufferSize, Rear) of
+ Buffer ->
+ {no_record, State#state{user_data_buffer = Buffer}}
catch error:_ ->
{stop,disconnect,
- State#state{
- user_data_buffer = Buffer,
- bytes_to_read = undefined}}
+ State#state{user_data_buffer = {Front,BufferSize,Rear}}}
end
end.
-read_application_dist_data(Buffer, State, DHandle) ->
- case Buffer of
- <<Size:32,Data:Size/binary>> ->
- erlang:dist_ctrl_put_data(DHandle, Data),
+
+read_application_data(#state{
+ socket_options = SocketOpts,
+ bytes_to_read = BytesToRead,
+ start_or_recv_from = RecvFrom} = State, Front, BufferSize, Rear) ->
+ read_application_data(State, Front, BufferSize, Rear, SocketOpts, RecvFrom, BytesToRead).
+
+%% Pick binary from queue front, if empty wait for more data
+read_application_data(State, [Bin|Front], BufferSize, Rear, SocketOpts, RecvFrom, BytesToRead) ->
+ read_application_data_bin(State, Front, BufferSize, Rear, SocketOpts, RecvFrom, BytesToRead, Bin);
+read_application_data(State, [] = Front, BufferSize, [] = Rear, SocketOpts, RecvFrom, BytesToRead) ->
+ 0 = BufferSize, % Assert
+ {no_record, State#state{socket_options = SocketOpts,
+ bytes_to_read = BytesToRead,
+ start_or_recv_from = RecvFrom,
+ user_data_buffer = {Front,BufferSize,Rear}}};
+read_application_data(State, [], BufferSize, Rear, SocketOpts, RecvFrom, BytesToRead) ->
+ [Bin|Front] = lists:reverse(Rear),
+ read_application_data_bin(State, Front, BufferSize, [], SocketOpts, RecvFrom, BytesToRead, Bin).
+
+read_application_data_bin(State, Front, BufferSize, Rear, SocketOpts, RecvFrom, BytesToRead, <<>>) ->
+ %% Done with this binary - get next
+ read_application_data(State, Front, BufferSize, Rear, SocketOpts, RecvFrom, BytesToRead);
+read_application_data_bin(State, Front0, BufferSize0, Rear0, SocketOpts0, RecvFrom, BytesToRead, Bin0) ->
+ %% Decode one packet from a binary
+ case get_data(SocketOpts0, BytesToRead, Bin0) of
+ {ok, Data, Bin} -> % Send data
+ BufferSize = BufferSize0 - (byte_size(Bin0) - byte_size(Bin)),
+ read_application_data_deliver(
+ State, [Bin|Front0], BufferSize, Rear0, SocketOpts0, RecvFrom, Data);
+ {more, undefined} ->
+ %% We need more data, do not know how much
+ if
+ byte_size(Bin0) < BufferSize0 ->
+ %% We have more data in the buffer besides the first binary - concatenate all and retry
+ Bin = iolist_to_binary([Bin0,Front0|lists:reverse(Rear0)]),
+ read_application_data_bin(
+ State, [], BufferSize0, [], SocketOpts0, RecvFrom, BytesToRead, Bin);
+ true ->
+ %% All data is in the first binary, no use to retry - wait for more
+ {no_record, State#state{socket_options = SocketOpts0,
+ bytes_to_read = BytesToRead,
+ start_or_recv_from = RecvFrom,
+ user_data_buffer = {[Bin0|Front0],BufferSize0,Rear0}}}
+ end;
+ {more, Size} when Size =< BufferSize0 ->
+ %% We have a packet in the buffer - collect it in a binary and decode
+ {Data,Front,Rear} = iovec_from_front(Size - byte_size(Bin0), Front0, Rear0, [Bin0]),
+ Bin = iolist_to_binary(Data),
+ read_application_data_bin(
+ State, Front, BufferSize0, Rear, SocketOpts0, RecvFrom, BytesToRead, Bin);
+ {more, _Size} ->
+ %% We do not have a packet in the buffer - wait for more
+ {no_record, State#state{socket_options = SocketOpts0,
+ bytes_to_read = BytesToRead,
+ start_or_recv_from = RecvFrom,
+ user_data_buffer = {[Bin0|Front0],BufferSize0,Rear0}}};
+ passive ->
+ {no_record, State#state{socket_options = SocketOpts0,
+ bytes_to_read = BytesToRead,
+ start_or_recv_from = RecvFrom,
+ user_data_buffer = {[Bin0|Front0],BufferSize0,Rear0}}};
+ {error,_Reason} ->
+ %% Invalid packet in packet mode
+ #state{
+ static_env =
+ #static_env{
+ socket = Socket,
+ protocol_cb = Connection,
+ transport_cb = Transport,
+ tracker = Tracker},
+ connection_env =
+ #connection_env{user_application = {_Mon, Pid}}} = State,
+ Buffer = iolist_to_binary([Bin0,Front0|lists:reverse(Rear0)]),
+ deliver_packet_error(
+ Connection:pids(State), Transport, Socket, SocketOpts0,
+ Buffer, Pid, RecvFrom, Tracker, Connection),
+ {stop, {shutdown, normal}, State#state{socket_options = SocketOpts0,
+ bytes_to_read = BytesToRead,
+ start_or_recv_from = RecvFrom,
+ user_data_buffer = {[Buffer],BufferSize0,[]}}}
+ end.
+
+read_application_data_deliver(State, Front, BufferSize, Rear, SocketOpts0, RecvFrom, Data) ->
+ #state{
+ static_env =
+ #static_env{
+ socket = Socket,
+ protocol_cb = Connection,
+ transport_cb = Transport,
+ tracker = Tracker},
+ connection_env =
+ #connection_env{user_application = {_Mon, Pid}}} = State,
+ SocketOpts =
+ deliver_app_data(
+ Connection:pids(State), Transport, Socket, SocketOpts0, Data, Pid, RecvFrom, Tracker, Connection),
+ if
+ SocketOpts#socket_options.active =:= false ->
+ %% Passive mode, wait for active once or recv
{no_record,
State#state{
- user_data_buffer = <<>>,
- bytes_to_read = undefined}};
- <<Size:32,Data:Size/binary,Rest/binary>> ->
+ user_data_buffer = {Front,BufferSize,Rear},
+ start_or_recv_from = undefined,
+ bytes_to_read = undefined,
+ socket_options = SocketOpts
+ }};
+ true -> %% Try to deliver more data
+ read_application_data(State, Front, BufferSize, Rear, SocketOpts, undefined, undefined)
+ end.
+
+
+read_application_dist_data(DHandle, [Bin|Front], BufferSize, Rear) ->
+ read_application_dist_data(DHandle, Front, BufferSize, Rear, Bin);
+read_application_dist_data(_DHandle, [] = Front, BufferSize, [] = Rear) ->
+ BufferSize = 0,
+ {Front,BufferSize,Rear};
+read_application_dist_data(DHandle, [], BufferSize, Rear) ->
+ [Bin|Front] = lists:reverse(Rear),
+ read_application_dist_data(DHandle, Front, BufferSize, [], Bin).
+%%
+read_application_dist_data(DHandle, Front0, BufferSize, Rear0, Bin0) ->
+ case Bin0 of
+ %%
+ %% START Optimization
+ %% It is cheaper to match out several packets in one match operation than to loop for each
+ <<SizeA:32, DataA:SizeA/binary,
+ SizeB:32, DataB:SizeB/binary,
+ SizeC:32, DataC:SizeC/binary,
+ SizeD:32, DataD:SizeD/binary, Rest/binary>> ->
+ %% We have 4 complete packets in the first binary
+ erlang:dist_ctrl_put_data(DHandle, DataA),
+ erlang:dist_ctrl_put_data(DHandle, DataB),
+ erlang:dist_ctrl_put_data(DHandle, DataC),
+ erlang:dist_ctrl_put_data(DHandle, DataD),
+ read_application_dist_data(
+ DHandle, Front0, BufferSize - (4*4+SizeA+SizeB+SizeC+SizeD), Rear0, Rest);
+ <<SizeA:32, DataA:SizeA/binary,
+ SizeB:32, DataB:SizeB/binary,
+ SizeC:32, DataC:SizeC/binary, Rest/binary>> ->
+ %% We have 3 complete packets in the first binary
+ erlang:dist_ctrl_put_data(DHandle, DataA),
+ erlang:dist_ctrl_put_data(DHandle, DataB),
+ erlang:dist_ctrl_put_data(DHandle, DataC),
+ read_application_dist_data(
+ DHandle, Front0, BufferSize - (3*4+SizeA+SizeB+SizeC), Rear0, Rest);
+ <<SizeA:32, DataA:SizeA/binary,
+ SizeB:32, DataB:SizeB/binary, Rest/binary>> ->
+ %% We have 2 complete packets in the first binary
+ erlang:dist_ctrl_put_data(DHandle, DataA),
+ erlang:dist_ctrl_put_data(DHandle, DataB),
+ read_application_dist_data(
+ DHandle, Front0, BufferSize - (2*4+SizeA+SizeB), Rear0, Rest);
+ %% END Optimization
+ %%
+ %% Basic one packet code path
+ <<Size:32, Data:Size/binary, Rest/binary>> ->
+ %% We have a complete packet in the first binary
erlang:dist_ctrl_put_data(DHandle, Data),
- read_application_dist_data(Rest, State, DHandle);
- _ ->
- {no_record,
- State#state{
- user_data_buffer = Buffer,
- bytes_to_read = undefined}}
+ read_application_dist_data(DHandle, Front0, BufferSize - (4+Size), Rear0, Rest);
+ <<Size:32, FirstData/binary>> when 4+Size =< BufferSize ->
+ %% We have a complete packet in the buffer
+ %% - fetch the missing content from the buffer front
+ {Data,Front,Rear} = iovec_from_front(Size - byte_size(FirstData), Front0, Rear0, [FirstData]),
+ erlang:dist_ctrl_put_data(DHandle, Data),
+ read_application_dist_data(DHandle, Front, BufferSize - (4+Size), Rear);
+ <<Bin/binary>> ->
+ %% In OTP-21 the match context reuse optimization fails if we use Bin0 in recursion, so here we
+ %% match out the whole binary which will trick the optimization into keeping the match context
+ %% for the first binary contains complete packet code above
+ case Bin of
+ <<_Size:32, _InsufficientData/binary>> ->
+ %% We have a length field in the first binary but there is not enough data
+ %% in the buffer to form a complete packet - await more data
+ {[Bin|Front0],BufferSize,Rear0};
+ <<IncompleteLengthField/binary>> when 4 < BufferSize ->
+ %% We do not have a length field in the first binary but the buffer
+ %% contains enough data to maybe form a packet
+ %% - fetch a tiny binary from the buffer front to complete the length field
+ {LengthField,Front,Rear} =
+ iovec_from_front(4 - byte_size(IncompleteLengthField), Front0, Rear0, [IncompleteLengthField]),
+ LengthBin = iolist_to_binary(LengthField),
+ read_application_dist_data(DHandle, Front, BufferSize, Rear, LengthBin);
+ <<IncompleteLengthField/binary>> ->
+ %% We do not have enough data in the buffer to even form a length field - await more data
+ {[IncompleteLengthField|Front0],BufferSize,Rear0}
+ end
end.
-read_application_data(
- Buffer0, State, SocketOpts0, RecvFrom, BytesToRead) ->
- %%
- case get_data(SocketOpts0, BytesToRead, Buffer0) of
- {ok, ClientData, Buffer} -> % Send data
- #state{static_env =
- #static_env{
- socket = Socket,
- protocol_cb = Connection,
- transport_cb = Transport,
- tracker = Tracker},
- connection_env =
- #connection_env{user_application = {_Mon, Pid}}}
- = State,
- SocketOpts =
- deliver_app_data(
- Connection:pids(State),
- Transport, Socket, SocketOpts0,
- ClientData, Pid, RecvFrom, Tracker, Connection),
- if
- SocketOpts#socket_options.active =:= false ->
- %% Passive mode, wait for active once or recv
- %% Active and empty, get more data
- {no_record,
- State#state{
- user_data_buffer = Buffer,
- start_or_recv_from = undefined,
- bytes_to_read = undefined,
- socket_options = SocketOpts
- }};
- true -> %% We have more data
- read_application_data(
- Buffer, State, SocketOpts,
- undefined, undefined)
- end;
- {more, Buffer} -> % no reply, we need more data
- {no_record, State#state{user_data_buffer = Buffer}};
- {passive, Buffer} ->
- {no_record, State#state{user_data_buffer = Buffer}};
- {error,_Reason} -> %% Invalid packet in packet mode
- #state{static_env =
- #static_env{
- socket = Socket,
- protocol_cb = Connection,
- transport_cb = Transport,
- tracker = Tracker},
- connection_env =
- #connection_env{user_application = {_Mon, Pid}}}
- = State,
- deliver_packet_error(
- Connection:pids(State), Transport, Socket, SocketOpts0,
- Buffer0, Pid, RecvFrom, Tracker, Connection),
- {stop, {shutdown, normal}, State}
+iovec_from_front(Size, [], Rear, Acc) ->
+ iovec_from_front(Size, lists:reverse(Rear), [], Acc);
+iovec_from_front(Size, [Bin|Front], Rear, Acc) ->
+ case Bin of
+ <<Last:Size/binary>> -> % Just enough
+ {lists:reverse(Acc, [Last]),Front,Rear};
+ <<Last:Size/binary, Rest/binary>> -> % More than enough, split here
+ {lists:reverse(Acc, [Last]),[Rest|Front],Rear};
+ <<_/binary>> -> % Not enough
+ BinSize = byte_size(Bin),
+ iovec_from_front(Size - BinSize, Front, Rear, [Bin|Acc])
end.
+
%%====================================================================
%% Help functions for tls|dtls_connection.erl
%%====================================================================
@@ -1070,10 +1192,8 @@ cipher(internal, #finished{verify_data = Data} = Finished,
cipher(internal, #next_protocol{selected_protocol = SelectedProtocol},
#state{static_env = #static_env{role = server},
handshake_env = #handshake_env{expecting_finished = true,
- expecting_next_protocol_negotiation = true} = HsEnv} = State0, Connection) ->
- {Record, State} =
- Connection:next_record(State0),
- Connection:next_event(?FUNCTION_NAME, Record,
+ expecting_next_protocol_negotiation = true} = HsEnv} = State, Connection) ->
+ Connection:next_event(?FUNCTION_NAME, no_record,
State#state{handshake_env = HsEnv#handshake_env{negotiated_protocol = SelectedProtocol,
expecting_next_protocol_negotiation = false}});
cipher(internal, #change_cipher_spec{type = <<1>>}, #state{handshake_env = HsEnv, connection_states = ConnectionStates0} =
@@ -1195,10 +1315,10 @@ handle_common_event({timeout, handshake}, close, _StateName, #state{start_or_rec
handle_common_event({timeout, recv}, timeout, StateName, #state{start_or_recv_from = RecvFrom} = State, _) ->
{next_state, StateName, State#state{start_or_recv_from = undefined,
bytes_to_read = undefined}, [{reply, RecvFrom, {error, timeout}}]};
-handle_common_event(_Type, Msg, StateName, #state{connection_env =
+handle_common_event(Type, Msg, StateName, #state{connection_env =
#connection_env{negotiated_version = Version}} = State,
_) ->
- Alert = ?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE, {unexpected_msg, Msg}),
+ Alert = ?ALERT_REC(?FATAL,?UNEXPECTED_MESSAGE, {unexpected_msg, {Type,Msg}}),
handle_own_alert(Alert, Version, StateName, State).
handle_call({application_data, _Data}, _, _, _, _) ->
@@ -1273,10 +1393,6 @@ handle_call({set_opts, Opts0}, From, StateName,
handle_call(renegotiate, From, StateName, _, _) when StateName =/= connection ->
{keep_state_and_data, [{reply, From, {error, already_renegotiating}}]};
-handle_call(get_sslsocket, From, _StateName, State, Connection) ->
- SslSocket = Connection:socket(State),
- {keep_state_and_data, [{reply, From, SslSocket}]};
-
handle_call({prf, Secret, Label, Seed, WantedLength}, From, _,
#state{connection_states = ConnectionStates,
connection_env = #connection_env{negotiated_version = Version}}, _) ->
@@ -2585,7 +2701,7 @@ handle_active_option(false, connection = StateName, To, Reply, State) ->
hibernate_after(StateName, State, [{reply, To, Reply}]);
handle_active_option(_, connection = StateName0, To, Reply, #state{static_env = #static_env{protocol_cb = Connection},
- user_data_buffer = <<>>} = State0) ->
+ user_data_buffer = {_,0,_}} = State0) ->
case Connection:next_event(StateName0, no_record, State0) of
{next_state, StateName, State} ->
hibernate_after(StateName, State, [{reply, To, Reply}]);
@@ -2594,11 +2710,11 @@ handle_active_option(_, connection = StateName0, To, Reply, #state{static_env =
{stop, _, _} = Stop ->
Stop
end;
-handle_active_option(_, StateName, To, Reply, #state{user_data_buffer = <<>>} = State) ->
+handle_active_option(_, StateName, To, Reply, #state{user_data_buffer = {_,0,_}} = State) ->
%% Active once already set
{next_state, StateName, State, [{reply, To, Reply}]};
-%% user_data_buffer =/= <<>>
+%% user_data_buffer nonempty
handle_active_option(_, StateName0, To, Reply,
#state{static_env = #static_env{protocol_cb = Connection}} = State0) ->
case read_application_data(<<>>, State0) of
@@ -2618,33 +2734,25 @@ handle_active_option(_, StateName0, To, Reply,
%% Picks ClientData
-get_data(_, _, <<>>) ->
- {more, <<>>};
-%% Recv timed out save buffer data until next recv
-get_data(#socket_options{active=false}, undefined, Buffer) ->
- {passive, Buffer};
-get_data(#socket_options{active=Active, packet=Raw}, BytesToRead, Buffer)
+get_data(#socket_options{active=false}, undefined, _Bin) ->
+ %% Recv timed out save buffer data until next recv
+ passive;
+get_data(#socket_options{active=Active, packet=Raw}, BytesToRead, Bin)
when Raw =:= raw; Raw =:= 0 -> %% Raw Mode
- if
- Active =/= false orelse BytesToRead =:= 0 ->
+ case Bin of
+ <<_/binary>> when Active =/= false orelse BytesToRead =:= 0 ->
%% Active true or once, or passive mode recv(0)
- {ok, Buffer, <<>>};
- byte_size(Buffer) >= BytesToRead ->
+ {ok, Bin, <<>>};
+ <<Data:BytesToRead/binary, Rest/binary>> ->
%% Passive Mode, recv(Bytes)
- <<Data:BytesToRead/binary, Rest/binary>> = Buffer,
- {ok, Data, Rest};
- true ->
+ {ok, Data, Rest};
+ <<_/binary>> ->
%% Passive Mode not enough data
- {more, Buffer}
+ {more, BytesToRead}
end;
-get_data(#socket_options{packet=Type, packet_size=Size}, _, Buffer) ->
+get_data(#socket_options{packet=Type, packet_size=Size}, _, Bin) ->
PacketOpts = [{packet_size, Size}],
- case decode_packet(Type, Buffer, PacketOpts) of
- {more, _} ->
- {more, Buffer};
- Decoded ->
- Decoded
- end.
+ decode_packet(Type, Bin, PacketOpts).
decode_packet({http, headers}, Buffer, PacketOpts) ->
decode_packet(httph, Buffer, PacketOpts);
@@ -2696,7 +2804,7 @@ format_reply(_, _, _,#socket_options{active = false, mode = Mode, packet = Packe
{ok, do_format_reply(Mode, Packet, Header, Data)};
format_reply(CPids, Transport, Socket, #socket_options{active = _, mode = Mode, packet = Packet,
header = Header}, Data, Tracker, Connection) ->
- {ssl, Connection:socket(CPids, Transport, Socket, Connection, Tracker),
+ {ssl, Connection:socket(CPids, Transport, Socket, Tracker),
do_format_reply(Mode, Packet, Header, Data)}.
deliver_packet_error(CPids, Transport, Socket,
@@ -2708,7 +2816,7 @@ format_packet_error(_, _, _,#socket_options{active = false, mode = Mode}, Data,
{error, {invalid_packet, do_format_reply(Mode, raw, 0, Data)}};
format_packet_error(CPids, Transport, Socket, #socket_options{active = _, mode = Mode},
Data, Tracker, Connection) ->
- {ssl_error, Connection:socket(CPids, Transport, Socket, Connection, Tracker),
+ {ssl_error, Connection:socket(CPids, Transport, Socket, Tracker),
{invalid_packet, do_format_reply(Mode, raw, 0, Data)}}.
do_format_reply(binary, _, N, Data) when N > 0 -> % Header mode
@@ -2764,12 +2872,10 @@ alert_user(Pids, Transport, Tracker, Socket, Active, Pid, From, Alert, Role, Con
case ssl_alert:reason_code(Alert, Role) of
closed ->
send_or_reply(Active, Pid, From,
- {ssl_closed, Connection:socket(Pids,
- Transport, Socket, Connection, Tracker)});
+ {ssl_closed, Connection:socket(Pids, Transport, Socket, Tracker)});
ReasonCode ->
send_or_reply(Active, Pid, From,
- {ssl_error, Connection:socket(Pids,
- Transport, Socket, Connection, Tracker), ReasonCode})
+ {ssl_error, Connection:socket(Pids, Transport, Socket, Tracker), ReasonCode})
end.
log_alert(Level, Role, ProtocolName, StateName, #alert{role = Role} = Alert) ->
@@ -2841,11 +2947,3 @@ new_emulated([], EmOpts) ->
EmOpts;
new_emulated(NewEmOpts, _) ->
NewEmOpts.
-
--compile({inline, [bincat/2]}).
-bincat(<<>>, B) ->
- B;
-bincat(A, <<>>) ->
- A;
-bincat(A, B) ->
- <<A/binary, B/binary>>.
diff --git a/lib/ssl/src/ssl_connection.hrl b/lib/ssl/src/ssl_connection.hrl
index f2864e5f33..0ac138b444 100644
--- a/lib/ssl/src/ssl_connection.hrl
+++ b/lib/ssl/src/ssl_connection.hrl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2013-2018. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2019. 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.
@@ -83,7 +83,7 @@
downgrade,
terminated = false ::boolean() | closed,
negotiated_version :: ssl_record:ssl_version() | 'undefined',
- erl_dist_handle = undefined :: erlang:dist_handle() | undefined,
+ erl_dist_handle = undefined :: erlang:dist_handle() | 'undefined',
private_key :: public_key:private_key() | secret_printout() | 'undefined'
}).
@@ -110,7 +110,7 @@
%% Data shuffling %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
connection_states :: ssl_record:connection_states() | secret_printout(),
protocol_buffers :: term() | secret_printout() , %% #protocol_buffers{} from tls_record.hrl or dtls_recor.hr
- user_data_buffer :: undefined | binary() | secret_printout(),
+ user_data_buffer :: undefined | {[binary()],non_neg_integer(),[binary()]} | secret_printout(),
bytes_to_read :: undefined | integer(), %% bytes to read in passive mode
%% recv and start handling
start_or_recv_from :: term(),
diff --git a/lib/ssl/src/ssl_logger.erl b/lib/ssl/src/ssl_logger.erl
index c4dd2dad60..d59a0dfda2 100644
--- a/lib/ssl/src/ssl_logger.erl
+++ b/lib/ssl/src/ssl_logger.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1999-2018. All Rights Reserved.
+%% Copyright Ericsson AB 1999-2019. 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.
@@ -46,13 +46,19 @@
format(#{level:= _Level, msg:= {report, Msg}, meta:= _Meta}, _Config0) ->
#{direction := Direction,
protocol := Protocol,
- message := BinMsg0} = Msg,
+ message := Content} = Msg,
case Protocol of
'tls_record' ->
- BinMsg = lists:flatten(BinMsg0),
+ BinMsg =
+ case Content of
+ #ssl_tls{} ->
+ [tls_record:build_tls_record(Content)];
+ _ when is_list(Content) ->
+ lists:flatten(Content)
+ end,
format_tls_record(Direction, BinMsg);
'handshake' ->
- format_handshake(Direction, BinMsg0);
+ format_handshake(Direction, Content);
_Other ->
[]
end.
diff --git a/lib/ssl/src/ssl_record.erl b/lib/ssl/src/ssl_record.erl
index d0a72ce51f..91f1876980 100644
--- a/lib/ssl/src/ssl_record.erl
+++ b/lib/ssl/src/ssl_record.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2013-2018. All Rights Reserved.
+%% Copyright Ericsson AB 2013-2019. 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.
@@ -47,14 +47,16 @@
-export([compress/3, uncompress/3, compressions/0]).
%% Payload encryption/decryption
--export([cipher/4, decipher/4, cipher_aead/4, decipher_aead/5, is_correct_mac/2, nonce_seed/3]).
+-export([cipher/4, cipher/5, decipher/4,
+ cipher_aead/4, cipher_aead/5, decipher_aead/5,
+ is_correct_mac/2, nonce_seed/3]).
-export_type([ssl_version/0, ssl_atom_version/0, connection_states/0, connection_state/0]).
-type ssl_version() :: {integer(), integer()}.
-type ssl_atom_version() :: tls_record:tls_atom_version().
--type connection_states() :: term(). %% Map
--type connection_state() :: term(). %% Map
+-type connection_states() :: map(). %% Map
+-type connection_state() :: map(). %% Map
%%====================================================================
%% Connection state handling
@@ -120,7 +122,7 @@ activate_pending_connection_state(#{current_write := Current,
}.
%%--------------------------------------------------------------------
--spec step_encryption_state(connection_states()) -> connection_states().
+-spec step_encryption_state(#state{}) -> #state{}.
%%
%% Description: Activates the next encyrption state (e.g. handshake
%% encryption).
@@ -319,27 +321,49 @@ cipher(Version, Fragment,
#security_parameters{bulk_cipher_algorithm =
BulkCipherAlgo}
} = WriteState0, MacHash) ->
-
+ %%
{CipherFragment, CipherS1} =
ssl_cipher:cipher(BulkCipherAlgo, CipherS0, MacHash, Fragment, Version),
{CipherFragment, WriteState0#{cipher_state => CipherS1}}.
+
+%%--------------------------------------------------------------------
+-spec cipher(ssl_version(), iodata(), #cipher_state{}, MacHash::binary(), #security_parameters{}) ->
+ {CipherFragment::binary(), #cipher_state{}}.
+%%
+%% Description: Payload encryption
+%%--------------------------------------------------------------------
+cipher(Version, Fragment, CipherS0, MacHash,
+ #security_parameters{bulk_cipher_algorithm = BulkCipherAlgo}) ->
+ %%
+ ssl_cipher:cipher(BulkCipherAlgo, CipherS0, MacHash, Fragment, Version).
+
%%--------------------------------------------------------------------
-spec cipher_aead(ssl_version(), iodata(), connection_state(), AAD::binary()) ->
{CipherFragment::binary(), connection_state()}.
%% Description: Payload encryption
%% %%--------------------------------------------------------------------
-cipher_aead(Version, Fragment,
+cipher_aead(_Version, Fragment,
#{cipher_state := CipherS0,
security_parameters :=
#security_parameters{bulk_cipher_algorithm =
BulkCipherAlgo}
} = WriteState0, AAD) ->
{CipherFragment, CipherS1} =
- cipher_aead(BulkCipherAlgo, CipherS0, AAD, Fragment, Version),
+ do_cipher_aead(BulkCipherAlgo, Fragment, CipherS0, AAD),
{CipherFragment, WriteState0#{cipher_state => CipherS1}}.
%%--------------------------------------------------------------------
+-spec cipher_aead(ssl_version(), iodata(), #cipher_state{}, AAD::binary(), #security_parameters{}) ->
+ {CipherFragment::binary(), #cipher_state{}}.
+
+%% Description: Payload encryption
+%% %%--------------------------------------------------------------------
+cipher_aead(_Version, Fragment, CipherS, AAD,
+ #security_parameters{bulk_cipher_algorithm = BulkCipherAlgo}) ->
+ do_cipher_aead(BulkCipherAlgo, Fragment, CipherS, AAD).
+
+%%--------------------------------------------------------------------
-spec decipher(ssl_version(), binary(), connection_state(), boolean()) ->
{binary(), binary(), connection_state()} | #alert{}.
%%
@@ -360,9 +384,8 @@ decipher(Version, CipherFragment,
Alert
end.
%%--------------------------------------------------------------------
--spec decipher_aead(ssl_cipher:cipher_enum(), #cipher_state{},
- binary(), binary(), ssl_record:ssl_version()) ->
- {binary(), #cipher_state{}} | #alert{}.
+-spec decipher_aead(ssl_cipher:cipher_enum(), #cipher_state{}, binary(), binary(), ssl_record:ssl_version()) ->
+ binary() | #alert{}.
%%
%% Description: Decrypts the data and checks the associated data (AAD) MAC using
%% cipher described by cipher_enum() and updating the cipher state.
@@ -374,7 +397,7 @@ decipher_aead(Type, #cipher_state{key = Key} = CipherState, AAD0, CipherFragment
{AAD, CipherText, CipherTag} = aead_ciphertext_split(Type, CipherState, CipherFragment, AAD0),
case ssl_cipher:aead_decrypt(Type, Key, Nonce, CipherText, CipherTag, AAD) of
Content when is_binary(Content) ->
- {Content, CipherState};
+ Content;
_ ->
?ALERT_REC(?FATAL, ?BAD_RECORD_MAC, decryption_failed)
end
@@ -416,11 +439,13 @@ random() ->
Random_28_bytes = ssl_cipher:random_bytes(28),
<<?UINT32(Secs_since_1970), Random_28_bytes/binary>>.
+-compile({inline, [is_correct_mac/2]}).
is_correct_mac(Mac, Mac) ->
true;
is_correct_mac(_M,_H) ->
false.
+-compile({inline, [record_protocol_role/1]}).
record_protocol_role(client) ->
?CLIENT;
record_protocol_role(server) ->
@@ -444,13 +469,15 @@ initial_security_params(ConnectionEnd) ->
compression_algorithm = ?NULL},
ssl_cipher:security_parameters(?TLS_NULL_WITH_NULL_NULL, SecParams).
-cipher_aead(?CHACHA20_POLY1305 = Type, #cipher_state{key=Key} = CipherState, AAD0, Fragment, _Version) ->
- AAD = end_additional_data(AAD0, erlang:iolist_size(Fragment)),
+-define(end_additional_data(AAD, Len), << (begin(AAD)end)/binary, ?UINT16(begin(Len)end) >>).
+
+do_cipher_aead(?CHACHA20_POLY1305 = Type, Fragment, #cipher_state{key=Key} = CipherState, AAD0) ->
+ AAD = ?end_additional_data(AAD0, erlang:iolist_size(Fragment)),
Nonce = encrypt_nonce(Type, CipherState),
{Content, CipherTag} = ssl_cipher:aead_encrypt(Type, Key, Nonce, Fragment, AAD),
{<<Content/binary, CipherTag/binary>>, CipherState};
-cipher_aead(Type, #cipher_state{key=Key, nonce = ExplicitNonce} = CipherState, AAD0, Fragment, _Version) ->
- AAD = end_additional_data(AAD0, erlang:iolist_size(Fragment)),
+do_cipher_aead(Type, Fragment, #cipher_state{key=Key, nonce = ExplicitNonce} = CipherState, AAD0) ->
+ AAD = ?end_additional_data(AAD0, erlang:iolist_size(Fragment)),
Nonce = encrypt_nonce(Type, CipherState),
{Content, CipherTag} = ssl_cipher:aead_encrypt(Type, Key, Nonce, Fragment, AAD),
{<<ExplicitNonce:64/integer, Content/binary, CipherTag/binary>>, CipherState#cipher_state{nonce = ExplicitNonce + 1}}.
@@ -466,15 +493,12 @@ decrypt_nonce(?CHACHA20_POLY1305, #cipher_state{nonce = Nonce, iv = IV}, _) ->
decrypt_nonce(?AES_GCM, #cipher_state{iv = <<Salt:4/bytes, _/binary>>}, <<ExplicitNonce:8/bytes, _/binary>>) ->
<<Salt/binary, ExplicitNonce/binary>>.
+-compile({inline, [aead_ciphertext_split/4]}).
aead_ciphertext_split(?CHACHA20_POLY1305, #cipher_state{tag_len = Len}, CipherTextFragment, AAD) ->
- CipherLen = size(CipherTextFragment) - Len,
+ CipherLen = byte_size(CipherTextFragment) - Len,
<<CipherText:CipherLen/bytes, CipherTag:Len/bytes>> = CipherTextFragment,
- {end_additional_data(AAD, CipherLen), CipherText, CipherTag};
+ {?end_additional_data(AAD, CipherLen), CipherText, CipherTag};
aead_ciphertext_split(?AES_GCM, #cipher_state{tag_len = Len}, CipherTextFragment, AAD) ->
- CipherLen = size(CipherTextFragment) - (Len + 8), %% 8 is length of explicit Nonce
+ CipherLen = byte_size(CipherTextFragment) - (Len + 8), %% 8 is length of explicit Nonce
<< _:8/bytes, CipherText:CipherLen/bytes, CipherTag:Len/bytes>> = CipherTextFragment,
- {end_additional_data(AAD, CipherLen), CipherText, CipherTag}.
-
-end_additional_data(AAD, Len) ->
- <<AAD/binary, ?UINT16(Len)>>.
-
+ {?end_additional_data(AAD, CipherLen), CipherText, CipherTag}.
diff --git a/lib/ssl/src/ssl_record.hrl b/lib/ssl/src/ssl_record.hrl
index 4cb19d9d0d..eb718fd20c 100644
--- a/lib/ssl/src/ssl_record.hrl
+++ b/lib/ssl/src/ssl_record.hrl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2016. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2019. 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.
@@ -141,6 +141,8 @@
-define(HANDSHAKE, 22).
-define(APPLICATION_DATA, 23).
-define(HEARTBEAT, 24).
+-define(KNOWN_RECORD_TYPE(Type),
+ (is_integer(Type) andalso (20 =< (Type)) andalso ((Type) =< 23))).
-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 ebb723673e..39b0b3e53a 100644
--- a/lib/ssl/src/tls_connection.erl
+++ b/lib/ssl/src/tls_connection.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2018. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2019. 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.
@@ -59,11 +59,10 @@
%% Alert and close handling
-export([send_alert/2, send_alert_in_connection/2,
send_sync_alert/2,
- encode_alert/3, close/5, protocol_name/0]).
+ close/5, protocol_name/0]).
%% Data handling
--export([encode_data/3, next_record/1,
- send/3, socket/5, setopts/3, getopts/3]).
+-export([next_record/1, socket/4, setopts/3, getopts/3]).
%% gen_statem state functions
-export([init/3, error/3, downgrade/3, %% Initiation and take down states
@@ -168,19 +167,10 @@ next_record(#state{handshake_env =
{no_record, State#state{handshake_env =
HsEnv#handshake_env{unprocessed_handshake_events = N-1}}};
next_record(#state{protocol_buffers =
- #protocol_buffers{tls_cipher_texts = [#ssl_tls{type = Type}| _] = CipherTexts0}
- = Buffers,
- connection_states = ConnectionStates0,
- connection_env = #connection_env{negotiated_version = Version},
+ #protocol_buffers{tls_cipher_texts = [_|_] = CipherTexts},
+ connection_states = ConnectionStates,
ssl_options = #ssl_options{padding_check = Check}} = State) ->
- case decode_cipher_texts(Version, Type, CipherTexts0, ConnectionStates0, Check, <<>>) of
- {#ssl_tls{} = Record, ConnectionStates, CipherTexts} ->
- {Record, State#state{protocol_buffers = Buffers#protocol_buffers{tls_cipher_texts = CipherTexts},
- connection_states = ConnectionStates}};
- {#alert{} = Alert, ConnectionStates, CipherTexts} ->
- {Alert, State#state{protocol_buffers = Buffers#protocol_buffers{tls_cipher_texts = CipherTexts},
- connection_states = ConnectionStates}}
- end;
+ next_record(State, CipherTexts, ConnectionStates, Check);
next_record(#state{protocol_buffers = #protocol_buffers{tls_cipher_texts = []},
protocol_specific = #{active_n_toggle := true, active_n := N} = ProtocolSpec,
static_env = #static_env{socket = Socket,
@@ -197,16 +187,56 @@ next_record(#state{protocol_buffers = #protocol_buffers{tls_cipher_texts = []},
next_record(State) ->
{no_record, State}.
+%% Decipher next record and concatenate consecutive ?APPLICATION_DATA records into one
+%%
+next_record(State, CipherTexts, ConnectionStates, Check) ->
+ next_record(State, CipherTexts, ConnectionStates, Check, []).
+%%
+next_record(#state{connection_env = #connection_env{negotiated_version = Version}} = State,
+ [CT|CipherTexts], ConnectionStates0, Check, Acc) ->
+ case tls_record:decode_cipher_text(Version, CT, ConnectionStates0, Check) of
+ {#ssl_tls{type = ?APPLICATION_DATA, fragment = Fragment}, ConnectionStates} ->
+ case CipherTexts of
+ [] ->
+ %% End of cipher texts - build and deliver an ?APPLICATION_DATA record
+ %% from the accumulated fragments
+ next_record_done(State, [], ConnectionStates,
+ #ssl_tls{type = ?APPLICATION_DATA,
+ fragment = iolist_to_binary(lists:reverse(Acc, [Fragment]))});
+ [_|_] ->
+ next_record(State, CipherTexts, ConnectionStates, Check, [Fragment|Acc])
+ end;
+ {Record, ConnectionStates} when Acc =:= [] ->
+ %% Singelton non-?APPLICATION_DATA record - deliver
+ next_record_done(State, CipherTexts, ConnectionStates, Record);
+ {_Record, _ConnectionStates_to_forget} ->
+ %% Not ?APPLICATION_DATA but we have accumulated fragments
+ %% -> build an ?APPLICATION_DATA record with concatenated fragments
+ %% and forget about decrypting this record - we'll decrypt it again next time
+ next_record_done(State, [CT|CipherTexts], ConnectionStates0,
+ #ssl_tls{type = ?APPLICATION_DATA, fragment = iolist_to_binary(lists:reverse(Acc))});
+ #alert{} = Alert ->
+ Alert
+ end.
+
+next_record_done(#state{protocol_buffers = Buffers} = State, CipherTexts, ConnectionStates, Record) ->
+ {Record,
+ State#state{protocol_buffers = Buffers#protocol_buffers{tls_cipher_texts = CipherTexts},
+ connection_states = ConnectionStates}}.
+
+
next_event(StateName, Record, State) ->
next_event(StateName, Record, State, []).
+%%
next_event(StateName, no_record, State0, Actions) ->
case next_record(State0) of
{no_record, State} ->
{next_state, StateName, State, Actions};
{#ssl_tls{} = Record, State} ->
{next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]};
- {#alert{} = Alert, State} ->
- {next_state, StateName, State, [{next_event, internal, Alert} | Actions]}
+ #alert{} = Alert ->
+ Version = State0#state.connection_env#connection_env.negotiated_version,
+ ssl_connection:handle_own_alert(Alert, Version, StateName, State0)
end;
next_event(StateName, Record, State, Actions) ->
case Record of
@@ -215,24 +245,10 @@ next_event(StateName, Record, State, Actions) ->
#ssl_tls{} = Record ->
{next_state, StateName, State, [{next_event, internal, {protocol_record, Record}} | Actions]};
#alert{} = Alert ->
- {next_state, StateName, State, [{next_event, internal, Alert} | Actions]}
+ Version = State#state.connection_env#connection_env.negotiated_version,
+ ssl_connection:handle_own_alert(Alert, Version, StateName, State)
end.
-decode_cipher_texts(_, Type, [] = CipherTexts, ConnectionStates, _, Acc) ->
- {#ssl_tls{type = Type, fragment = Acc}, ConnectionStates, CipherTexts};
-decode_cipher_texts(Version, Type,
- [#ssl_tls{type = Type} = CT | CipherTexts], ConnectionStates0, Check, Acc) ->
- case tls_record:decode_cipher_text(Version, CT, ConnectionStates0, Check) of
- {#ssl_tls{type = ?APPLICATION_DATA, fragment = Plain}, ConnectionStates} ->
- decode_cipher_texts(Version, Type, CipherTexts,
- ConnectionStates, Check, <<Acc/binary, Plain/binary>>);
- {#ssl_tls{type = Type0, fragment = Plain}, ConnectionStates} ->
- {#ssl_tls{type = Type0, fragment = Plain}, ConnectionStates, CipherTexts};
- #alert{} = Alert ->
- {Alert, ConnectionStates0, CipherTexts}
- end;
-decode_cipher_texts(_, Type, CipherTexts, ConnectionStates, _, Acc) ->
- {#ssl_tls{type = Type, fragment = Acc}, ConnectionStates, CipherTexts}.
%%% TLS record protocol level application data messages
@@ -241,8 +257,14 @@ handle_protocol_record(#ssl_tls{type = ?APPLICATION_DATA, fragment = Data}, Stat
{stop, _, _} = Stop->
Stop;
{Record, State1} ->
- {next_state, StateName, State, Actions} = next_event(StateName, Record, State1),
- ssl_connection:hibernate_after(StateName, State, Actions)
+ case next_event(StateName, Record, State1) of
+ {next_state, StateName, State} ->
+ ssl_connection:hibernate_after(StateName, State, []);
+ {next_state, StateName, State, Actions} ->
+ ssl_connection:hibernate_after(StateName, State, Actions);
+ {stop, _, _} = Stop ->
+ Stop
+ end
end;
%%% TLS record protocol level handshake messages
handle_protocol_record(#ssl_tls{type = ?HANDSHAKE, fragment = Data},
@@ -324,7 +346,7 @@ renegotiate(#state{static_env = #static_env{role = server,
Hs0 = ssl_handshake:init_handshake_history(),
{BinMsg, ConnectionStates} =
tls_record:encode_handshake(Frag, Version, ConnectionStates0),
- send(Transport, Socket, BinMsg),
+ tls_socket:send(Transport, Socket, BinMsg),
State = State0#state{connection_states =
ConnectionStates,
handshake_env = HsEnv#handshake_env{tls_handshake_history = Hs0}},
@@ -351,7 +373,7 @@ queue_handshake(Handshake, #state{handshake_env = #handshake_env{tls_handshake_h
send_handshake_flight(#state{static_env = #static_env{socket = Socket,
transport_cb = Transport},
flight_buffer = Flight} = State0) ->
- send(Transport, Socket, Flight),
+ tls_socket:send(Transport, Socket, Flight),
{State0#state{flight_buffer = []}, []}.
@@ -409,7 +431,7 @@ send_alert(Alert, #state{static_env = #static_env{socket = Socket,
connection_states = ConnectionStates0} = StateData0) ->
{BinMsg, ConnectionStates} =
encode_alert(Alert, Version, ConnectionStates0),
- send(Transport, Socket, BinMsg),
+ tls_socket:send(Transport, Socket, BinMsg),
ssl_logger:debug(SslOpts#ssl_options.log_level, outbound, 'tls_record', BinMsg),
StateData0#state{connection_states = ConnectionStates}.
@@ -464,14 +486,9 @@ protocol_name() ->
%%====================================================================
%% Data handling
%%====================================================================
-encode_data(Data, Version, ConnectionStates0)->
- tls_record:encode_data(Data, Version, ConnectionStates0).
-
-send(Transport, Socket, Data) ->
- tls_socket:send(Transport, Socket, Data).
-socket(Pids, Transport, Socket, Connection, Tracker) ->
- tls_socket:socket(Pids, Transport, Socket, Connection, Tracker).
+socket(Pids, Transport, Socket, Tracker) ->
+ tls_socket:socket(Pids, Transport, Socket, ?MODULE, Tracker).
setopts(Transport, Socket, Other) ->
tls_socket:setopts(Transport, Socket, Other).
@@ -510,7 +527,7 @@ init({call, From}, {start, Timeout},
Handshake0 = ssl_handshake:init_handshake_history(),
{BinMsg, ConnectionStates, Handshake} =
encode_handshake(Hello, HelloVersion, ConnectionStates0, Handshake0),
- send(Transport, Socket, BinMsg),
+ tls_socket:send(Transport, Socket, BinMsg),
ssl_logger:debug(SslOpts#ssl_options.log_level, outbound, 'handshake', Hello),
ssl_logger:debug(SslOpts#ssl_options.log_level, outbound, 'tls_record', BinMsg),
@@ -755,12 +772,11 @@ connection(internal, #client_hello{} = Hello,
},
[{next_event, internal, Hello}]);
connection(internal, #client_hello{},
- #state{static_env = #static_env{role = server,
- protocol_cb = Connection},
+ #state{static_env = #static_env{role = server},
handshake_env = #handshake_env{allow_renegotiate = false}} = State0) ->
Alert = ?ALERT_REC(?WARNING, ?NO_RENEGOTIATION),
send_alert_in_connection(Alert, State0),
- State = Connection:reinit_handshake_data(State0),
+ State = reinit_handshake_data(State0),
next_event(?FUNCTION_NAME, no_record, State);
connection(Type, Event, State) ->
@@ -970,7 +986,7 @@ initial_state(Role, Sender, Host, Port, Socket, {SSLOptions, SocketOptions, Trac
session = #session{is_resumable = new},
connection_states = ConnectionStates,
protocol_buffers = #protocol_buffers{},
- user_data_buffer = <<>>,
+ user_data_buffer = {[],0,[]},
start_or_recv_from = undefined,
flight_buffer = [],
protocol_specific = #{sender => Sender,
@@ -982,7 +998,6 @@ initial_state(Role, Sender, Host, Port, Socket, {SSLOptions, SocketOptions, Trac
initialize_tls_sender(#state{static_env = #static_env{
role = Role,
transport_cb = Transport,
- protocol_cb = Connection,
socket = Socket,
tracker = Tracker
},
@@ -997,20 +1012,29 @@ initialize_tls_sender(#state{static_env = #static_env{
socket => Socket,
socket_options => SockOpts,
tracker => Tracker,
- protocol_cb => Connection,
transport_cb => Transport,
negotiated_version => Version,
renegotiate_at => RenegotiateAt,
log_level => LogLevel},
tls_sender:initialize(Sender, Init).
-
-next_tls_record(Data, StateName, #state{protocol_buffers =
- #protocol_buffers{tls_record_buffer = Buf0,
- tls_cipher_texts = CT0} = Buffers,
- ssl_options = SslOpts} = State0) ->
- case tls_record:get_tls_records(Data,
- acceptable_record_versions(StateName, State0),
- Buf0, SslOpts) of
+
+next_tls_record(Data, StateName,
+ #state{protocol_buffers =
+ #protocol_buffers{tls_record_buffer = Buf0,
+ tls_cipher_texts = CT0} = Buffers,
+ ssl_options = SslOpts} = State0) ->
+ Versions =
+ %% TLS 1.3 Client/Server
+ %% - Ignore TLSPlaintext.legacy_record_version
+ %% - Verify that TLSCiphertext.legacy_record_version is set to 0x0303 for all records
+ %% other than an initial ClientHello, where it MAY also be 0x0301.
+ case StateName of
+ hello ->
+ [tls_record:protocol_version(Vsn) || Vsn <- ?ALL_AVAILABLE_VERSIONS];
+ _ ->
+ State0#state.connection_env#connection_env.negotiated_version
+ end,
+ case tls_record:get_tls_records(Data, Versions, Buf0, SslOpts) of
{Records, Buf1} ->
CT1 = CT0 ++ Records,
next_record(State0#state{protocol_buffers =
@@ -1020,14 +1044,6 @@ next_tls_record(Data, StateName, #state{protocol_buffers =
handle_record_alert(Alert, State0)
end.
-%% TLS 1.3 Client/Server
-%% - Ignore TLSPlaintext.legacy_record_version
-%% - Verify that TLSCiphertext.legacy_record_version is set to 0x0303 for all records
-%% other than an initial ClientHello, where it MAY also be 0x0301.
-acceptable_record_versions(StateName, #state{connection_env = #connection_env{negotiated_version = Version}}) when StateName =/= hello->
- Version;
-acceptable_record_versions(hello, _) ->
- [tls_record:protocol_version(Vsn) || Vsn <- ?ALL_AVAILABLE_VERSIONS].
handle_record_alert(Alert, _) ->
Alert.
@@ -1058,7 +1074,7 @@ handle_info({CloseTag, Socket}, StateName,
connection_env = #connection_env{negotiated_version = Version},
socket_options = #socket_options{active = Active},
protocol_buffers = #protocol_buffers{tls_cipher_texts = CTs},
- user_data_buffer = Buffer,
+ user_data_buffer = {_,BufferSize,_},
protocol_specific = PS} = State) ->
%% Note that as of TLS 1.1,
@@ -1066,7 +1082,7 @@ handle_info({CloseTag, Socket}, StateName,
%% session not be resumed. This is a change from TLS 1.0 to conform
%% with widespread implementation practice.
- case (Active == false) andalso ((CTs =/= []) or (Buffer =/= <<>>)) of
+ case (Active == false) andalso ((CTs =/= []) or (BufferSize =/= 0)) of
false ->
case Version of
{1, N} when N >= 1 ->
@@ -1101,9 +1117,9 @@ handle_alerts(_, {stop, _, _} = Stop) ->
handle_alerts([#alert{level = ?WARNING, description = ?CLOSE_NOTIFY} | _Alerts],
{next_state, connection = StateName, #state{connection_env = CEnv,
socket_options = #socket_options{active = false},
- user_data_buffer = Buffer,
+ user_data_buffer = {_,BufferSize,_},
protocol_buffers = #protocol_buffers{tls_cipher_texts = CTs}} =
- State}) when (Buffer =/= <<>>) orelse
+ State}) when (BufferSize =/= 0) orelse
(CTs =/= []) ->
{next_state, StateName, State#state{connection_env = CEnv#connection_env{terminated = true}}};
handle_alerts([Alert | Alerts], {next_state, StateName, State}) ->
@@ -1155,7 +1171,7 @@ gen_info(Event, connection = StateName, #state{connection_env = #connection_env
Result ->
Result
catch
- _:_ ->
+ _:_ ->
ssl_connection:handle_own_alert(?ALERT_REC(?FATAL, ?INTERNAL_ERROR,
malformed_data),
Version, StateName, State)
@@ -1177,7 +1193,7 @@ gen_info_1_3(Event, connected = StateName, #state{connection_env = #connection_
Result ->
Result
catch
- _:_ ->
+ _:_ ->
ssl_connection:handle_own_alert(?ALERT_REC(?FATAL, ?INTERNAL_ERROR,
malformed_data),
Version, StateName, State)
diff --git a/lib/ssl/src/tls_record.erl b/lib/ssl/src/tls_record.erl
index 96e851de41..94506b8edc 100644
--- a/lib/ssl/src/tls_record.erl
+++ b/lib/ssl/src/tls_record.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2007-2018. All Rights Reserved.
+%% Copyright Ericsson AB 2007-2019. 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.
@@ -43,6 +43,9 @@
%% Decoding
-export([decode_cipher_text/4]).
+%% Logging helper
+-export([build_tls_record/1]).
+
%% Protocol version handling
-export([protocol_version/1, lowest_protocol_version/1, lowest_protocol_version/2,
highest_protocol_version/1, highest_protocol_version/2,
@@ -76,15 +79,23 @@ init_connection_states(Role, BeastMitigation) ->
pending_write => Pending}.
%%--------------------------------------------------------------------
--spec get_tls_records(binary(), [tls_version()] | tls_version(), binary(),
- #ssl_options{}) -> {[binary()], binary()} | #alert{}.
+-spec get_tls_records(
+ binary(),
+ [tls_version()] | tls_version(),
+ Buffer0 :: binary() | {'undefined' | #ssl_tls{}, {[binary()],non_neg_integer(),[binary()]}},
+ #ssl_options{}) ->
+ {Records :: [#ssl_tls{}],
+ Buffer :: {'undefined' | #ssl_tls{}, {[binary()],non_neg_integer(),[binary()]}}} |
+ #alert{}.
%%
%% and returns it as a list of tls_compressed binaries also returns leftover
%% Description: Given old buffer and new data from TCP, packs up a records
%% data
%%--------------------------------------------------------------------
-get_tls_records(Data, Version, Buffer, SslOpts) ->
- get_tls_records_aux(Version, <<Buffer/binary, Data/binary>>, [], SslOpts).
+get_tls_records(Data, Versions, Buffer, SslOpts) when is_binary(Buffer) ->
+ parse_tls_records(Versions, {[Data],byte_size(Data),[]}, SslOpts, undefined);
+get_tls_records(Data, Versions, {Hdr, {Front,Size,Rear}}, SslOpts) ->
+ parse_tls_records(Versions, {Front,Size + byte_size(Data),[Data|Rear]}, SslOpts, Hdr).
%%====================================================================
%% Encoding
@@ -106,8 +117,8 @@ encode_handshake(Frag, Version,
ConnectionStates) ->
case iolist_size(Frag) of
N when N > ?MAX_PLAIN_TEXT_LENGTH ->
- Data = split_bin(iolist_to_binary(Frag), Version, BCA, BeastMitigation),
- encode_iolist(?HANDSHAKE, Data, Version, ConnectionStates);
+ Data = split_iovec(erlang:iolist_to_iovec(Frag), Version, BCA, BeastMitigation),
+ encode_fragments(?HANDSHAKE, Version, Data, ConnectionStates);
_ ->
encode_plain_text(?HANDSHAKE, Version, Frag, ConnectionStates)
end.
@@ -135,20 +146,20 @@ encode_change_cipher_spec(Version, ConnectionStates) ->
encode_plain_text(?CHANGE_CIPHER_SPEC, Version, ?byte(?CHANGE_CIPHER_SPEC_PROTO), ConnectionStates).
%%--------------------------------------------------------------------
--spec encode_data(binary(), tls_version(), ssl_record:connection_states()) ->
- {iolist(), ssl_record:connection_states()}.
+-spec encode_data([binary()], tls_version(), ssl_record:connection_states()) ->
+ {[[binary()]], ssl_record:connection_states()}.
%%
%% 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,
+encode_data(Data, Version,
#{current_write := #{beast_mitigation := BeastMitigation,
security_parameters :=
#security_parameters{bulk_cipher_algorithm = BCA}}} =
ConnectionStates) ->
- Data = split_bin(Frag, Version, BCA, BeastMitigation),
- encode_iolist(?APPLICATION_DATA, Data, Version, ConnectionStates).
+ Fragments = split_iovec(Data, Version, BCA, BeastMitigation),
+ encode_fragments(?APPLICATION_DATA, Version, Fragments, ConnectionStates).
%%====================================================================
%% Decoding
@@ -162,57 +173,59 @@ encode_data(Frag, 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,
+decode_cipher_text(_, CipherTextRecord,
#{current_read :=
- #{compression_state := CompressionS0,
- sequence_number := Seq,
- cipher_state := CipherS0,
+ #{sequence_number := Seq,
security_parameters :=
- #security_parameters{
- cipher_type = ?AEAD,
- bulk_cipher_algorithm =
- BulkCipherAlgo,
- compression_algorithm = CompAlg}
- } = ReadState0} = ConnnectionStates0, _) ->
- AAD = start_additional_data(Type, Version, ReadState0),
- CipherS1 = ssl_record:nonce_seed(BulkCipherAlgo, <<?UINT64(Seq)>>, CipherS0),
- case ssl_record:decipher_aead(BulkCipherAlgo, CipherS1, AAD, CipherFragment, Version) of
- {PlainFragment, CipherState} ->
- {Plain, CompressionS1} = ssl_record:uncompress(CompAlg,
- PlainFragment, CompressionS0),
- ConnnectionStates = ConnnectionStates0#{
+ #security_parameters{cipher_type = ?AEAD,
+ bulk_cipher_algorithm = BulkCipherAlgo},
+ cipher_state := CipherS0
+ }
+ } = ConnectionStates0, _) ->
+ SeqBin = <<?UINT64(Seq)>>,
+ #ssl_tls{type = Type, version = {MajVer,MinVer} = Version, fragment = Fragment} = CipherTextRecord,
+ StartAdditionalData = <<SeqBin/binary, ?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer)>>,
+ CipherS = ssl_record:nonce_seed(BulkCipherAlgo, SeqBin, CipherS0),
+ case ssl_record:decipher_aead(
+ BulkCipherAlgo, CipherS, StartAdditionalData, Fragment, Version)
+ of
+ PlainFragment when is_binary(PlainFragment) ->
+ #{current_read :=
+ #{security_parameters := SecParams,
+ compression_state := CompressionS0} = ReadState0} = ConnectionStates0,
+ {Plain, CompressionS} = ssl_record:uncompress(SecParams#security_parameters.compression_algorithm,
+ PlainFragment, CompressionS0),
+ ConnectionStates = ConnectionStates0#{
current_read => ReadState0#{
- cipher_state => CipherState,
+ cipher_state => CipherS,
sequence_number => Seq + 1,
- compression_state => CompressionS1}},
- {CipherText#ssl_tls{fragment = Plain}, ConnnectionStates};
+ compression_state => CompressionS}},
+ {CipherTextRecord#ssl_tls{fragment = Plain}, ConnectionStates};
#alert{} = Alert ->
Alert
end;
-decode_cipher_text(_, #ssl_tls{type = Type, version = Version,
- fragment = CipherFragment} = CipherText,
- #{current_read :=
- #{compression_state := CompressionS0,
- sequence_number := Seq,
- security_parameters :=
- #security_parameters{compression_algorithm = CompAlg}
- } = ReadState0} = ConnnectionStates0, PaddingCheck) ->
+decode_cipher_text(_, #ssl_tls{version = Version,
+ fragment = CipherFragment} = CipherTextRecord,
+ #{current_read := ReadState0} = ConnnectionStates0, PaddingCheck) ->
case ssl_record:decipher(Version, CipherFragment, ReadState0, PaddingCheck) of
{PlainFragment, Mac, ReadState1} ->
- MacHash = ssl_cipher:calc_mac_hash(Type, Version, PlainFragment, ReadState1),
+ MacHash = ssl_cipher:calc_mac_hash(CipherTextRecord#ssl_tls.type, Version, PlainFragment, ReadState1),
case ssl_record:is_correct_mac(Mac, MacHash) of
true ->
+ #{sequence_number := Seq,
+ compression_state := CompressionS0,
+ security_parameters :=
+ #security_parameters{compression_algorithm = CompAlg}} = ReadState0,
{Plain, CompressionS1} = ssl_record:uncompress(CompAlg,
PlainFragment, CompressionS0),
- ConnnectionStates = ConnnectionStates0#{
- current_read => ReadState1#{
- sequence_number => Seq + 1,
- compression_state => CompressionS1}},
- {CipherText#ssl_tls{fragment = Plain}, ConnnectionStates};
+ ConnnectionStates =
+ ConnnectionStates0#{current_read =>
+ ReadState1#{sequence_number => Seq + 1,
+ compression_state => CompressionS1}},
+ {CipherTextRecord#ssl_tls{fragment = Plain}, ConnnectionStates};
false ->
- ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC)
+ ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC)
end;
#alert{} = Alert ->
Alert
@@ -398,138 +411,230 @@ initial_connection_state(ConnectionEnd, BeastMitigation) ->
server_verify_data => undefined
}.
-%% TLS 1.3
-get_tls_records_aux({3,4} = Version, <<?BYTE(Type),?BYTE(3),?BYTE(3),
- ?UINT16(Length), Data:Length/binary,
- Rest/binary>> = RawTLSRecord,
- Acc, SslOpts) when Type == ?APPLICATION_DATA;
- Type == ?HANDSHAKE;
- Type == ?ALERT;
- Type == ?CHANGE_CIPHER_SPEC ->
- ssl_logger:debug(SslOpts#ssl_options.log_level, inbound, 'tls_record', [RawTLSRecord]),
- get_tls_records_aux(Version, Rest, [#ssl_tls{type = Type,
- version = {3,3}, %% Use legacy version
- fragment = Data} | Acc], SslOpts);
-get_tls_records_aux({MajVer, MinVer} = Version, <<?BYTE(Type),?BYTE(MajVer),?BYTE(MinVer),
- ?UINT16(Length), Data:Length/binary, Rest/binary>> = RawTLSRecord,
- Acc, SslOpts) when Type == ?APPLICATION_DATA;
- Type == ?HANDSHAKE;
- Type == ?ALERT;
- Type == ?CHANGE_CIPHER_SPEC ->
- ssl_logger:debug(SslOpts#ssl_options.log_level, inbound, 'tls_record', [RawTLSRecord]),
- get_tls_records_aux(Version, Rest, [#ssl_tls{type = Type,
- version = Version,
- fragment = Data} | Acc], SslOpts);
-get_tls_records_aux(Versions, <<?BYTE(Type),?BYTE(MajVer),?BYTE(MinVer),
- ?UINT16(Length), Data:Length/binary, Rest/binary>> = RawTLSRecord,
- Acc, SslOpts) when is_list(Versions) andalso
- ((Type == ?APPLICATION_DATA)
- orelse
- (Type == ?HANDSHAKE)
- orelse
- (Type == ?ALERT)
- orelse
- (Type == ?CHANGE_CIPHER_SPEC)) ->
- case is_acceptable_version({MajVer, MinVer}, Versions) of
+%% Used by logging to recreate the received bytes
+build_tls_record(#ssl_tls{type = Type, version = {MajVer, MinVer}, fragment = Fragment}) ->
+ Length = byte_size(Fragment),
+ <<?BYTE(Type),?BYTE(MajVer),?BYTE(MinVer),?UINT16(Length), Fragment/binary>>.
+
+
+parse_tls_records(Versions, Q, SslOpts, undefined) ->
+ decode_tls_records(Versions, Q, SslOpts, [], undefined, undefined, undefined);
+parse_tls_records(Versions, Q, SslOpts, #ssl_tls{type = Type, version = Version, fragment = Length}) ->
+ decode_tls_records(Versions, Q, SslOpts, [], Type, Version, Length).
+
+%% Generic code path
+decode_tls_records(Versions, {_,Size,_} = Q0, SslOpts, Acc, undefined, _Version, _Length) ->
+ if
+ 5 =< Size ->
+ {<<?BYTE(Type),?BYTE(MajVer),?BYTE(MinVer), ?UINT16(Length)>>, Q} = binary_from_front(5, Q0),
+ validate_tls_records_type(Versions, Q, SslOpts, Acc, Type, {MajVer,MinVer}, Length);
+ 3 =< Size ->
+ {<<?BYTE(Type),?BYTE(MajVer),?BYTE(MinVer)>>, Q} = binary_from_front(3, Q0),
+ validate_tls_records_type(Versions, Q, SslOpts, Acc, Type, {MajVer,MinVer}, undefined);
+ 1 =< Size ->
+ {<<?BYTE(Type)>>, Q} = binary_from_front(1, Q0),
+ validate_tls_records_type(Versions, Q, SslOpts, Acc, Type, undefined, undefined);
+ true ->
+ validate_tls_records_type(Versions, Q0, SslOpts, Acc, undefined, undefined, undefined)
+ end;
+decode_tls_records(Versions, {_,Size,_} = Q0, SslOpts, Acc, Type, undefined, _Length) ->
+ if
+ 4 =< Size ->
+ {<<?BYTE(MajVer),?BYTE(MinVer), ?UINT16(Length)>>, Q} = binary_from_front(4, Q0),
+ validate_tls_record_version(Versions, Q, SslOpts, Acc, Type, {MajVer,MinVer}, Length);
+ 2 =< Size ->
+ {<<?BYTE(MajVer),?BYTE(MinVer)>>, Q} = binary_from_front(2, Q0),
+ validate_tls_record_version(Versions, Q, SslOpts, Acc, Type, {MajVer,MinVer}, undefined);
+ true ->
+ validate_tls_record_version(Versions, Q0, SslOpts, Acc, Type, undefined, undefined)
+ end;
+decode_tls_records(Versions, {_,Size,_} = Q0, SslOpts, Acc, Type, Version, undefined) ->
+ if
+ 2 =< Size ->
+ {<<?UINT16(Length)>>, Q} = binary_from_front(2, Q0),
+ validate_tls_record_length(Versions, Q, SslOpts, Acc, Type, Version, Length);
true ->
- ssl_logger:debug(SslOpts#ssl_options.log_level, inbound, 'tls_record', [RawTLSRecord]),
- get_tls_records_aux(Versions, Rest, [#ssl_tls{type = Type,
- version = {MajVer, MinVer},
- fragment = Data} | Acc], SslOpts);
- false ->
+ validate_tls_record_length(Versions, Q0, SslOpts, Acc, Type, Version, undefined)
+ end;
+decode_tls_records(Versions, Q, SslOpts, Acc, Type, Version, Length) ->
+ validate_tls_record_length(Versions, Q, SslOpts, Acc, Type, Version, Length).
+
+validate_tls_records_type(_Versions, Q, _SslOpts, Acc, undefined, _Version, _Length) ->
+ {lists:reverse(Acc),
+ {undefined, Q}};
+validate_tls_records_type(Versions, Q, SslOpts, Acc, Type, Version, Length) ->
+ if
+ ?KNOWN_RECORD_TYPE(Type) ->
+ validate_tls_record_version(Versions, Q, SslOpts, Acc, Type, Version, Length);
+ true ->
+ %% Not ?KNOWN_RECORD_TYPE(Type)
+ ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE)
+ end.
+
+validate_tls_record_version(_Versions, Q, _SslOpts, Acc, Type, undefined, _Length) ->
+ {lists:reverse(Acc),
+ {#ssl_tls{type = Type, version = undefined, fragment = undefined}, Q}};
+validate_tls_record_version(Versions, Q, SslOpts, Acc, Type, Version, Length) ->
+ case Versions of
+ _ when is_list(Versions) ->
+ case is_acceptable_version(Version, Versions) of
+ true ->
+ validate_tls_record_length(Versions, Q, SslOpts, Acc, Type, Version, Length);
+ false ->
+ ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC)
+ end;
+ {3, 4} when Version =:= {3, 3} ->
+ validate_tls_record_length(Versions, Q, SslOpts, Acc, Type, Version, Length);
+ Version ->
+ %% Exact version match
+ validate_tls_record_length(Versions, Q, SslOpts, Acc, Type, Version, Length);
+ _ ->
?ALERT_REC(?FATAL, ?BAD_RECORD_MAC)
+ end.
+
+validate_tls_record_length(_Versions, Q, _SslOpts, Acc, Type, Version, undefined) ->
+ {lists:reverse(Acc),
+ {#ssl_tls{type = Type, version = Version, fragment = undefined}, Q}};
+validate_tls_record_length(Versions, {_,Size0,_} = Q0, SslOpts, Acc, Type, Version, Length) ->
+ if
+ Length =< ?MAX_CIPHER_TEXT_LENGTH ->
+ if
+ Length =< Size0 ->
+ %% Complete record
+ {Fragment, Q} = binary_from_front(Length, Q0),
+ Record = #ssl_tls{type = Type, version = Version, fragment = Fragment},
+ ssl_logger:debug(SslOpts#ssl_options.log_level, inbound, 'tls_record', Record),
+ decode_tls_records(Versions, Q, SslOpts, [Record|Acc], undefined, undefined, undefined);
+ true ->
+ {lists:reverse(Acc),
+ {#ssl_tls{type = Type, version = Version, fragment = Length}, Q0}}
+ end;
+ true ->
+ ?ALERT_REC(?FATAL, ?RECORD_OVERFLOW)
+ end.
+
+
+binary_from_front(SplitSize, {Front,Size,Rear}) ->
+ binary_from_front(SplitSize, Front, Size, Rear, []).
+%%
+binary_from_front(SplitSize, [], Size, [_] = Rear, Acc) ->
+ %% Optimize a simple case
+ binary_from_front(SplitSize, Rear, Size, [], Acc);
+binary_from_front(SplitSize, [], Size, Rear, Acc) ->
+ binary_from_front(SplitSize, lists:reverse(Rear), Size, [], Acc);
+binary_from_front(SplitSize, [Bin|Front], Size, Rear, []) ->
+ %% Optimize a frequent case
+ BinSize = byte_size(Bin),
+ if
+ SplitSize < BinSize ->
+ {RetBin, Rest} = erlang:split_binary(Bin, SplitSize),
+ {RetBin, {[Rest|Front],Size - SplitSize,Rear}};
+ BinSize < SplitSize ->
+ binary_from_front(SplitSize - BinSize, Front, Size, Rear, [Bin]);
+ true -> % Perfect fit
+ {Bin, {Front,Size - SplitSize,Rear}}
end;
-get_tls_records_aux(_, <<?BYTE(Type),?BYTE(_MajVer),?BYTE(_MinVer),
- ?UINT16(Length), _:Length/binary, _Rest/binary>>,
- _, _) when Type == ?APPLICATION_DATA;
- Type == ?HANDSHAKE;
- Type == ?ALERT;
- Type == ?CHANGE_CIPHER_SPEC ->
- ?ALERT_REC(?FATAL, ?BAD_RECORD_MAC);
-get_tls_records_aux(_, <<0:1, _CT:7, ?BYTE(_MajVer), ?BYTE(_MinVer),
- ?UINT16(Length), _/binary>>,
- _Acc, _) when Length > ?MAX_CIPHER_TEXT_LENGTH ->
- ?ALERT_REC(?FATAL, ?RECORD_OVERFLOW);
-get_tls_records_aux(_, Data, Acc, _) ->
- case size(Data) =< ?MAX_CIPHER_TEXT_LENGTH + ?INITIAL_BYTES of
- true ->
- {lists:reverse(Acc), Data};
- false ->
- ?ALERT_REC(?FATAL, ?UNEXPECTED_MESSAGE)
+binary_from_front(SplitSize, [Bin|Front], Size, Rear, Acc) ->
+ BinSize = byte_size(Bin),
+ if
+ SplitSize < BinSize ->
+ {Last, Rest} = erlang:split_binary(Bin, SplitSize),
+ RetBin = iolist_to_binary(lists:reverse(Acc, [Last])),
+ {RetBin, {[Rest|Front],Size - byte_size(RetBin),Rear}};
+ BinSize < SplitSize ->
+ binary_from_front(SplitSize - BinSize, Front, Size, Rear, [Bin|Acc]);
+ true -> % Perfect fit
+ RetBin = iolist_to_binary(lists:reverse(Acc, [Bin])),
+ {RetBin, {Front,Size - byte_size(RetBin),Rear}}
end.
+
%%--------------------------------------------------------------------
-encode_plain_text(Type, Version, Data, #{current_write := Write0} = ConnectionStates) ->
- {CipherFragment, Write1} = do_encode_plain_text(Type, Version, Data, Write0),
- {CipherText, Write} = encode_tls_cipher_text(Type, Version, CipherFragment, Write1),
- {CipherText, ConnectionStates#{current_write => Write}}.
-
-encode_tls_cipher_text(Type, {MajVer, MinVer}, Fragment, #{sequence_number := Seq} = Write) ->
- Length = erlang:iolist_size(Fragment),
- {[<<?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer), ?UINT16(Length)>>, Fragment],
- Write#{sequence_number => Seq +1}}.
-
-encode_iolist(Type, Data, Version, ConnectionStates0) ->
- {ConnectionStates, EncodedMsg} =
- lists:foldl(fun(Text, {CS0, Encoded}) ->
- {Enc, CS1} =
- encode_plain_text(Type, Version, Text, CS0),
- {CS1, [Enc | Encoded]}
- end, {ConnectionStates0, []}, Data),
- {lists:reverse(EncodedMsg), ConnectionStates}.
-%%--------------------------------------------------------------------
-do_encode_plain_text(Type, Version, Data, #{compression_state := CompS0,
- cipher_state := CipherS0,
- sequence_number := Seq,
- security_parameters :=
- #security_parameters{
- cipher_type = ?AEAD,
- bulk_cipher_algorithm = BCAlg,
- compression_algorithm = CompAlg}
- } = WriteState0) ->
- {Comp, CompS1} = ssl_record:compress(CompAlg, Data, CompS0),
- CipherS = ssl_record:nonce_seed(BCAlg, <<?UINT64(Seq)>>, CipherS0),
- WriteState = WriteState0#{compression_state => CompS1,
- cipher_state => CipherS},
- AAD = start_additional_data(Type, Version, WriteState),
- ssl_record:cipher_aead(Version, Comp, WriteState, AAD);
-do_encode_plain_text(Type, Version, Data, #{compression_state := CompS0,
- security_parameters :=
- #security_parameters{compression_algorithm = CompAlg}
- }= WriteState0) ->
- {Comp, CompS1} = ssl_record:compress(CompAlg, Data, CompS0),
- WriteState1 = WriteState0#{compression_state => CompS1},
- MacHash = ssl_cipher:calc_mac_hash(Type, Version, Comp, WriteState1),
- ssl_record:cipher(Version, Comp, WriteState1, MacHash);
-do_encode_plain_text(_,_,_,CS) ->
+encode_plain_text(Type, Version, Data, ConnectionStates0) ->
+ {[CipherText],ConnectionStates} = encode_fragments(Type, Version, [Data], ConnectionStates0),
+ {CipherText,ConnectionStates}.
+%%--------------------------------------------------------------------
+encode_fragments(Type, Version, Data,
+ #{current_write := #{compression_state := CompS,
+ cipher_state := CipherS,
+ sequence_number := Seq}} = ConnectionStates) ->
+ encode_fragments(Type, Version, Data, ConnectionStates, CompS, CipherS, Seq, []).
+%%
+encode_fragments(_Type, _Version, [], #{current_write := WriteS} = CS,
+ CompS, CipherS, Seq, CipherFragments) ->
+ {lists:reverse(CipherFragments),
+ CS#{current_write := WriteS#{compression_state := CompS,
+ cipher_state := CipherS,
+ sequence_number := Seq}}};
+encode_fragments(Type, Version, [Text|Data],
+ #{current_write := #{security_parameters :=
+ #security_parameters{cipher_type = ?AEAD,
+ bulk_cipher_algorithm = BCAlg,
+ compression_algorithm = CompAlg} = SecPars}} = CS,
+ CompS0, CipherS0, Seq, CipherFragments) ->
+ {CompText, CompS} = ssl_record:compress(CompAlg, Text, CompS0),
+ SeqBin = <<?UINT64(Seq)>>,
+ CipherS1 = ssl_record:nonce_seed(BCAlg, SeqBin, CipherS0),
+ {MajVer, MinVer} = Version,
+ VersionBin = <<?BYTE(MajVer), ?BYTE(MinVer)>>,
+ StartAdditionalData = <<SeqBin/binary, ?BYTE(Type), VersionBin/binary>>,
+ {CipherFragment,CipherS} = ssl_record:cipher_aead(Version, CompText, CipherS1, StartAdditionalData, SecPars),
+ Length = byte_size(CipherFragment),
+ CipherHeader = <<?BYTE(Type), VersionBin/binary, ?UINT16(Length)>>,
+ encode_fragments(Type, Version, Data, CS, CompS, CipherS, Seq + 1,
+ [[CipherHeader, CipherFragment] | CipherFragments]);
+encode_fragments(Type, Version, [Text|Data],
+ #{current_write := #{security_parameters :=
+ #security_parameters{compression_algorithm = CompAlg,
+ mac_algorithm = MacAlgorithm} = SecPars,
+ mac_secret := MacSecret}} = CS,
+ CompS0, CipherS0, Seq, CipherFragments) ->
+ {CompText, CompS} = ssl_record:compress(CompAlg, Text, CompS0),
+ MacHash = ssl_cipher:calc_mac_hash(Type, Version, CompText, MacAlgorithm, MacSecret, Seq),
+ {CipherFragment,CipherS} = ssl_record:cipher(Version, CompText, CipherS0, MacHash, SecPars),
+ Length = byte_size(CipherFragment),
+ {MajVer, MinVer} = Version,
+ CipherHeader = <<?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer), ?UINT16(Length)>>,
+ encode_fragments(Type, Version, Data, CS, CompS, CipherS, Seq + 1,
+ [[CipherHeader, CipherFragment] | CipherFragments]);
+encode_fragments(_Type, _Version, _Data, CS, _CompS, _CipherS, _Seq, _CipherFragments) ->
exit({cs, CS}).
%%--------------------------------------------------------------------
-start_additional_data(Type, {MajVer, MinVer},
- #{sequence_number := SeqNo}) ->
- <<?UINT64(SeqNo), ?BYTE(Type), ?BYTE(MajVer), ?BYTE(MinVer)>>.
%% 1/n-1 splitting countermeasure Rizzo/Duong-Beast, RC4 chiphers are
%% not vulnerable to this attack.
-split_bin(<<FirstByte:8, Rest/binary>>, Version, BCA, one_n_minus_one) when
- BCA =/= ?RC4 andalso ({3, 1} == Version orelse
- {3, 0} == Version) ->
- [[FirstByte]|do_split_bin(Rest)];
+split_iovec([<<FirstByte:8, Rest/binary>>|Data], Version, BCA, one_n_minus_one)
+ when (BCA =/= ?RC4) andalso ({3, 1} == Version orelse
+ {3, 0} == Version) ->
+ [[FirstByte]|split_iovec([Rest|Data])];
%% 0/n splitting countermeasure for clients that are incompatible with 1/n-1
%% splitting.
-split_bin(Bin, Version, BCA, zero_n) when
- BCA =/= ?RC4 andalso ({3, 1} == Version orelse
- {3, 0} == Version) ->
- [<<>>|do_split_bin(Bin)];
-split_bin(Bin, _, _, _) ->
- do_split_bin(Bin).
-
-do_split_bin(<<>>) -> [];
-do_split_bin(Bin) ->
- case Bin of
- <<Chunk:?MAX_PLAIN_TEXT_LENGTH/binary, Rest/binary>> ->
- [Chunk|do_split_bin(Rest)];
- _ ->
- [Bin]
- end.
+split_iovec(Data, Version, BCA, zero_n)
+ when (BCA =/= ?RC4) andalso ({3, 1} == Version orelse
+ {3, 0} == Version) ->
+ [<<>>|split_iovec(Data)];
+split_iovec(Data, _Version, _BCA, _BeatMitigation) ->
+ split_iovec(Data).
+
+split_iovec([]) ->
+ [];
+split_iovec(Data) ->
+ {Part,Rest} = split_iovec(Data, ?MAX_PLAIN_TEXT_LENGTH, []),
+ [Part|split_iovec(Rest)].
+%%
+split_iovec([Bin|Data], SplitSize, Acc) ->
+ BinSize = byte_size(Bin),
+ if
+ SplitSize < BinSize ->
+ {Last, Rest} = erlang:split_binary(Bin, SplitSize),
+ {lists:reverse(Acc, [Last]), [Rest|Data]};
+ BinSize < SplitSize ->
+ split_iovec(Data, SplitSize - BinSize, [Bin|Acc]);
+ true -> % Perfect match
+ {lists:reverse(Acc, [Bin]), Data}
+ end;
+split_iovec([], _SplitSize, Acc) ->
+ {lists:reverse(Acc),[]}.
+
%%--------------------------------------------------------------------
lowest_list_protocol_version(Ver, []) ->
Ver;
diff --git a/lib/ssl/src/tls_sender.erl b/lib/ssl/src/tls_sender.erl
index 1f34f9a420..ba73eddf0b 100644
--- a/lib/ssl/src/tls_sender.erl
+++ b/lib/ssl/src/tls_sender.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 2018-2018. All Rights Reserved.
+%% Copyright Ericsson AB 2018-2019. 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.
@@ -38,20 +38,24 @@
-define(SERVER, ?MODULE).
--record(data, {connection_pid,
- connection_states = #{},
- role,
- socket,
- socket_options,
- tracker,
- protocol_cb,
- transport_cb,
- negotiated_version,
- renegotiate_at,
- connection_monitor,
- dist_handle,
- log_level
- }).
+-record(static,
+ {connection_pid,
+ role,
+ socket,
+ socket_options,
+ tracker,
+ transport_cb,
+ negotiated_version,
+ renegotiate_at,
+ connection_monitor,
+ dist_handle,
+ log_level
+ }).
+
+-record(data,
+ {static = #static{},
+ connection_states = #{}
+ }).
%%%===================================================================
%%% API
@@ -172,6 +176,10 @@ dist_tls_socket(Pid) ->
callback_mode() ->
state_functions.
+
+-define(HANDLE_COMMON,
+ ?FUNCTION_NAME(Type, Msg, StateData) ->
+ handle_common(Type, Msg, StateData)).
%%--------------------------------------------------------------------
-spec init(Args :: term()) ->
gen_statem:init_result(atom()).
@@ -193,41 +201,37 @@ init({call, From}, {Pid, #{current_write := WriteState,
socket := Socket,
socket_options := SockOpts,
tracker := Tracker,
- protocol_cb := Connection,
transport_cb := Transport,
negotiated_version := Version,
renegotiate_at := RenegotiateAt,
log_level := LogLevel}},
- #data{connection_states = ConnectionStates} = StateData0) ->
+ #data{connection_states = ConnectionStates, static = Static0} = StateData0) ->
Monitor = erlang:monitor(process, Pid),
StateData =
- StateData0#data{connection_pid = Pid,
- connection_monitor = Monitor,
- connection_states =
- ConnectionStates#{current_write => WriteState},
- role = Role,
- socket = Socket,
- socket_options = SockOpts,
- tracker = Tracker,
- protocol_cb = Connection,
- transport_cb = Transport,
- negotiated_version = Version,
- renegotiate_at = RenegotiateAt,
- log_level = LogLevel},
+ StateData0#data{connection_states = ConnectionStates#{current_write => WriteState},
+ static = Static0#static{connection_pid = Pid,
+ connection_monitor = Monitor,
+ role = Role,
+ socket = Socket,
+ socket_options = SockOpts,
+ tracker = Tracker,
+ transport_cb = Transport,
+ negotiated_version = Version,
+ renegotiate_at = RenegotiateAt,
+ log_level = LogLevel}},
{next_state, handshake, StateData, [{reply, From, ok}]};
-init(info, Msg, StateData) ->
- handle_info(Msg, ?FUNCTION_NAME, StateData).
+init(_, _, _) ->
+ %% Just in case anything else sneeks through
+ {keep_state_and_data, [postpone]}.
+
%%--------------------------------------------------------------------
-spec connection(gen_statem:event_type(),
Msg :: term(),
StateData :: term()) ->
gen_statem:event_handler_result(atom()).
%%--------------------------------------------------------------------
-connection({call, From}, renegotiate,
- #data{connection_states = #{current_write := Write}} = StateData) ->
- {next_state, handshake, StateData, [{reply, From, {ok, Write}}]};
connection({call, From}, {application_data, AppData},
- #data{socket_options = #socket_options{packet = Packet}} =
+ #data{static = #static{socket_options = #socket_options{packet = Packet}}} =
StateData) ->
case encode_packet(Packet, AppData) of
{error, _} = Error ->
@@ -235,40 +239,40 @@ connection({call, From}, {application_data, AppData},
Data ->
send_application_data(Data, From, ?FUNCTION_NAME, StateData)
end;
-connection({call, From}, {set_opts, _} = Call, StateData) ->
- handle_call(From, Call, ?FUNCTION_NAME, StateData);
+connection({call, From}, {ack_alert, #alert{} = Alert}, StateData0) ->
+ StateData = send_tls_alert(Alert, StateData0),
+ {next_state, ?FUNCTION_NAME, StateData,
+ [{reply,From,ok}]};
+connection({call, From}, renegotiate,
+ #data{connection_states = #{current_write := Write}} = StateData) ->
+ {next_state, handshake, StateData, [{reply, From, {ok, Write}}]};
+connection({call, From}, downgrade, #data{connection_states =
+ #{current_write := Write}} = StateData) ->
+ {next_state, death_row, StateData, [{reply,From, {ok, Write}}]};
+connection({call, From}, {set_opts, Opts}, StateData) ->
+ handle_set_opts(From, Opts, StateData);
connection({call, From}, dist_get_tls_socket,
- #data{protocol_cb = Connection,
- transport_cb = Transport,
- socket = Socket,
- connection_pid = Pid,
- tracker = Tracker} = StateData) ->
- TLSSocket = Connection:socket([Pid, self()], Transport, Socket, Connection, Tracker),
+ #data{static = #static{transport_cb = Transport,
+ socket = Socket,
+ connection_pid = Pid,
+ tracker = Tracker}} = StateData) ->
+ TLSSocket = tls_connection:socket([Pid, self()], Transport, Socket, Tracker),
{next_state, ?FUNCTION_NAME, StateData, [{reply, From, {ok, TLSSocket}}]};
connection({call, From}, {dist_handshake_complete, _Node, DHandle},
- #data{connection_pid = Pid,
- socket_options = #socket_options{packet = Packet}} =
- StateData) ->
+ #data{static = #static{connection_pid = Pid} = Static} = StateData) ->
ok = erlang:dist_ctrl_input_handler(DHandle, Pid),
ok = ssl_connection:dist_handshake_complete(Pid, DHandle),
%% From now on we execute on normal priority
process_flag(priority, normal),
- {next_state, ?FUNCTION_NAME, StateData#data{dist_handle = DHandle},
- [{reply, From, ok}
- | case dist_data(DHandle, Packet) of
- [] ->
- [];
- Data ->
- [{next_event, internal,
- {application_packets,{self(),undefined},Data}}]
- end]};
-connection({call, From}, {ack_alert, #alert{} = Alert}, StateData0) ->
- StateData = send_tls_alert(Alert, StateData0),
- {next_state, ?FUNCTION_NAME, StateData,
- [{reply,From,ok}]};
-connection({call, From}, downgrade, #data{connection_states =
- #{current_write := Write}} = StateData) ->
- {next_state, death_row, StateData, [{reply,From, {ok, Write}}]};
+ {keep_state, StateData#data{static = Static#static{dist_handle = DHandle}},
+ [{reply,From,ok}|
+ case dist_data(DHandle) of
+ [] ->
+ [];
+ Data ->
+ [{next_event, internal,
+ {application_packets,{self(),undefined},erlang:iolist_to_iovec(Data)}}]
+ end]};
connection(internal, {application_packets, From, Data}, StateData) ->
send_application_data(Data, From, ?FUNCTION_NAME, StateData);
%%
@@ -276,29 +280,26 @@ connection(cast, #alert{} = Alert, StateData0) ->
StateData = send_tls_alert(Alert, StateData0),
{next_state, ?FUNCTION_NAME, StateData};
connection(cast, {new_write, WritesState, Version},
- #data{connection_states = ConnectionStates0} = StateData) ->
+ #data{connection_states = ConnectionStates, static = Static} = StateData) ->
{next_state, connection,
StateData#data{connection_states =
- ConnectionStates0#{current_write => WritesState},
- negotiated_version = Version}};
+ ConnectionStates#{current_write => WritesState},
+ static = Static#static{negotiated_version = Version}}};
%%
-connection(info, dist_data,
- #data{dist_handle = DHandle,
- socket_options = #socket_options{packet = Packet}} =
- StateData) ->
- {next_state, ?FUNCTION_NAME, StateData,
- case dist_data(DHandle, Packet) of
+connection(info, dist_data, #data{static = #static{dist_handle = DHandle}}) ->
+ {keep_state_and_data,
+ case dist_data(DHandle) of
[] ->
[];
Data ->
[{next_event, internal,
- {application_packets,{self(),undefined},Data}}]
+ {application_packets,{self(),undefined},erlang:iolist_to_iovec(Data)}}]
end};
connection(info, tick, StateData) ->
consume_ticks(),
- {next_state, ?FUNCTION_NAME, StateData,
- [{next_event, {call, {self(), undefined}},
- {application_data, <<>>}}]};
+ Data = [<<0:32>>], % encode_packet(4, <<>>)
+ From = {self(), undefined},
+ send_application_data(Data, From, ?FUNCTION_NAME, StateData);
connection(info, {send, From, Ref, Data}, _StateData) ->
%% This is for testing only!
%%
@@ -307,29 +308,37 @@ connection(info, {send, From, Ref, Data}, _StateData) ->
From ! {Ref, ok},
{keep_state_and_data,
[{next_event, {call, {self(), undefined}},
- {application_data, iolist_to_binary(Data)}}]};
-connection(info, Msg, StateData) ->
- handle_info(Msg, ?FUNCTION_NAME, StateData).
+ {application_data, erlang:iolist_to_iovec(Data)}}]};
+?HANDLE_COMMON.
+
%%--------------------------------------------------------------------
-spec handshake(gen_statem:event_type(),
Msg :: term(),
StateData :: term()) ->
gen_statem:event_handler_result(atom()).
%%--------------------------------------------------------------------
-handshake({call, From}, {set_opts, _} = Call, StateData) ->
- handle_call(From, Call, ?FUNCTION_NAME, StateData);
+handshake({call, From}, {set_opts, Opts}, StateData) ->
+ handle_set_opts(From, Opts, StateData);
handshake({call, _}, _, _) ->
+ %% Postpone all calls to the connection state
+ {keep_state_and_data, [postpone]};
+handshake(internal, {application_packets,_,_}, _) ->
{keep_state_and_data, [postpone]};
handshake(cast, {new_write, WritesState, Version},
- #data{connection_states = ConnectionStates0} = StateData) ->
+ #data{connection_states = ConnectionStates, static = Static} = StateData) ->
{next_state, connection,
- StateData#data{connection_states =
- ConnectionStates0#{current_write => WritesState},
- negotiated_version = Version}};
-handshake(internal, {application_packets,_,_}, _) ->
+ StateData#data{connection_states = ConnectionStates#{current_write => WritesState},
+ static = Static#static{negotiated_version = Version}}};
+handshake(info, dist_data, _) ->
{keep_state_and_data, [postpone]};
-handshake(info, Msg, StateData) ->
- handle_info(Msg, ?FUNCTION_NAME, StateData).
+handshake(info, tick, _) ->
+ %% Ignore - data is sent anyway during handshake
+ consume_ticks(),
+ keep_state_and_data;
+handshake(info, {send, _, _, _}, _) ->
+ %% Testing only, OTP distribution test suites...
+ {keep_state_and_data, [postpone]};
+?HANDLE_COMMON.
%%--------------------------------------------------------------------
-spec death_row(gen_statem:event_type(),
@@ -364,52 +373,69 @@ code_change(_OldVsn, State, Data, _Extra) ->
%%%===================================================================
%%% Internal functions
%%%===================================================================
-handle_call(From, {set_opts, Opts}, StateName, #data{socket_options = SockOpts} = StateData) ->
- {next_state, StateName, StateData#data{socket_options = set_opts(SockOpts, Opts)}, [{reply, From, ok}]}.
-
-handle_info({'DOWN', Monitor, _, _, Reason}, _,
- #data{connection_monitor = Monitor,
- dist_handle = Handle} = StateData) when Handle =/= undefined->
- {next_state, death_row, StateData, [{state_timeout, 5000, Reason}]};
-handle_info({'DOWN', Monitor, _, _, _}, _,
- #data{connection_monitor = Monitor} = StateData) ->
+
+handle_set_opts(
+ From, Opts, #data{static = #static{socket_options = SockOpts} = Static} = StateData) ->
+ {keep_state, StateData#data{static = Static#static{socket_options = set_opts(SockOpts, Opts)}},
+ [{reply, From, ok}]}.
+
+handle_common(
+ {call, From}, {set_opts, Opts},
+ #data{static = #static{socket_options = SockOpts} = Static} = StateData) ->
+ {keep_state, StateData#data{static = Static#static{socket_options = set_opts(SockOpts, Opts)}},
+ [{reply, From, ok}]};
+handle_common(
+ info, {'DOWN', Monitor, _, _, Reason},
+ #data{static = #static{connection_monitor = Monitor,
+ dist_handle = Handle}} = StateData) when Handle =/= undefined ->
+ {next_state, death_row, StateData,
+ [{state_timeout, 5000, Reason}]};
+handle_common(
+ info, {'DOWN', Monitor, _, _, _},
+ #data{static = #static{connection_monitor = Monitor}} = StateData) ->
{stop, normal, StateData};
-handle_info(_,_,_) ->
+handle_common(info, Msg, _) ->
+ Report =
+ io_lib:format("TLS sender: Got unexpected info: ~p ~n", [Msg]),
+ error_logger:info_report(Report),
+ keep_state_and_data;
+handle_common(Type, Msg, _) ->
+ Report =
+ io_lib:format(
+ "TLS sender: Got unexpected event: ~p ~n", [{Type,Msg}]),
+ error_logger:error_report(Report),
keep_state_and_data.
-send_tls_alert(Alert, #data{negotiated_version = Version,
- socket = Socket,
- protocol_cb = Connection,
- transport_cb = Transport,
- connection_states = ConnectionStates0,
- log_level = LogLevel} = StateData0) ->
+send_tls_alert(#alert{} = Alert,
+ #data{static = #static{negotiated_version = Version,
+ socket = Socket,
+ transport_cb = Transport,
+ log_level = LogLevel},
+ connection_states = ConnectionStates0} = StateData0) ->
{BinMsg, ConnectionStates} =
- Connection:encode_alert(Alert, Version, ConnectionStates0),
- Connection:send(Transport, Socket, BinMsg),
+ tls_record:encode_alert_record(Alert, Version, ConnectionStates0),
+ tls_socket:send(Transport, Socket, BinMsg),
ssl_logger:debug(LogLevel, outbound, 'tls_record', BinMsg),
StateData0#data{connection_states = ConnectionStates}.
send_application_data(Data, From, StateName,
- #data{connection_pid = Pid,
- socket = Socket,
- dist_handle = DistHandle,
- negotiated_version = Version,
- protocol_cb = Connection,
- transport_cb = Transport,
- connection_states = ConnectionStates0,
- renegotiate_at = RenegotiateAt,
- log_level = LogLevel} = StateData0) ->
+ #data{static = #static{connection_pid = Pid,
+ socket = Socket,
+ dist_handle = DistHandle,
+ negotiated_version = Version,
+ transport_cb = Transport,
+ renegotiate_at = RenegotiateAt,
+ log_level = LogLevel},
+ connection_states = ConnectionStates0} = StateData0) ->
case time_to_renegotiate(Data, ConnectionStates0, RenegotiateAt) of
true ->
ssl_connection:internal_renegotiation(Pid, ConnectionStates0),
{next_state, handshake, StateData0,
[{next_event, internal, {application_packets, From, Data}}]};
false ->
- {Msgs, ConnectionStates} =
- Connection:encode_data(
- iolist_to_binary(Data), Version, ConnectionStates0),
+ {Msgs, ConnectionStates} = tls_record:encode_data(Data, Version, ConnectionStates0),
StateData = StateData0#data{connection_states = ConnectionStates},
- case Connection:send(Transport, Socket, Msgs) of
+ case tls_socket:send(Transport, Socket, Msgs) of
ok when DistHandle =/= undefined ->
ssl_logger:debug(LogLevel, outbound, 'tls_record', Msgs),
{next_state, StateName, StateData, []};
@@ -427,9 +453,9 @@ send_application_data(Data, From, StateName,
encode_packet(Packet, Data) ->
Len = iolist_size(Data),
case Packet of
- 1 when Len < (1 bsl 8) -> [<<Len:8>>,Data];
- 2 when Len < (1 bsl 16) -> [<<Len:16>>,Data];
- 4 when Len < (1 bsl 32) -> [<<Len:32>>,Data];
+ 1 when Len < (1 bsl 8) -> [<<Len:8>>|Data];
+ 2 when Len < (1 bsl 16) -> [<<Len:16>>|Data];
+ 4 when Len < (1 bsl 32) -> [<<Len:32>>|Data];
N when N =:= 1; N =:= 2; N =:= 4 ->
{error,
{badarg, {packet_to_large, Len, (1 bsl (Packet bsl 3)) - 1}}};
@@ -466,22 +492,30 @@ call(FsmPid, Event) ->
{error, closed}
end.
-%%---------------Erlang distribution --------------------------------------
+%%-------------- Erlang distribution helpers ------------------------------
-dist_data(DHandle, Packet) ->
+dist_data(DHandle) ->
case erlang:dist_ctrl_get_data(DHandle) of
none ->
erlang:dist_ctrl_get_data_notification(DHandle),
[];
- Data ->
- %% This is encode_packet(4, Data) without Len check
- %% since the emulator will always deliver a Data
- %% smaller than 4 GB, and the distribution will
- %% therefore always have to use {packet,4}
+ %% This is encode_packet(4, Data) without Len check
+ %% since the emulator will always deliver a Data
+ %% smaller than 4 GB, and the distribution will
+ %% therefore always have to use {packet,4}
+ Data when is_binary(Data) ->
+ Len = byte_size(Data),
+ [[<<Len:32>>,Data]|dist_data(DHandle)];
+ [BA,BB] = Data ->
+ Len = byte_size(BA) + byte_size(BB),
+ [[<<Len:32>>|Data]|dist_data(DHandle)];
+ Data when is_list(Data) ->
Len = iolist_size(Data),
- [<<Len:32>>,Data|dist_data(DHandle, Packet)]
+ [[<<Len:32>>|Data]|dist_data(DHandle)]
end.
+
+%% Empty the inbox from distribution ticks - do not let them accumulate
consume_ticks() ->
receive tick ->
consume_ticks()
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 16:11:54 +0000