diff options
Diffstat (limited to 'lib/ssl/src/ssl_record.erl')
| -rw-r--r-- | lib/ssl/src/ssl_record.erl | 83 |
1 files changed, 66 insertions, 17 deletions
diff --git a/lib/ssl/src/ssl_record.erl b/lib/ssl/src/ssl_record.erl index b0e9943e6d..ce6b8fb84f 100644 --- a/lib/ssl/src/ssl_record.erl +++ b/lib/ssl/src/ssl_record.erl @@ -1,18 +1,19 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2013-2014. All Rights Reserved. +%% Copyright Ericsson AB 2013-2015. All Rights Reserved. %% -%% The contents of this file are subject to the Erlang Public License, -%% Version 1.1, (the "License"); you may not use this file except in -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at %% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. %% %% %CopyrightEnd% @@ -48,7 +49,8 @@ -export([compress/3, uncompress/3, compressions/0]). %% Payload encryption/decryption --export([cipher/4, decipher/3, is_correct_mac/2]). +-export([cipher/4, decipher/4, is_correct_mac/2, + cipher_aead/4, decipher_aead/4]). -export_type([ssl_version/0, ssl_atom_version/0]). @@ -309,9 +311,19 @@ set_pending_cipher_state(#connection_states{pending_read = Read, %% %% Description: Encodes a handshake message to send on the ssl-socket. %%-------------------------------------------------------------------- -encode_handshake(Frag, Version, ConnectionStates) -> - encode_plain_text(?HANDSHAKE, Version, Frag, ConnectionStates). - +encode_handshake(Frag, Version, + #connection_states{current_write = + #connection_state{ + security_parameters = + #security_parameters{bulk_cipher_algorithm = BCA}}} = + ConnectionStates) -> + case iolist_size(Frag) of + N when N > ?MAX_PLAIN_TEXT_LENGTH -> + Data = split_bin(iolist_to_binary(Frag), ?MAX_PLAIN_TEXT_LENGTH, Version, BCA), + encode_iolist(?HANDSHAKE, Data, Version, ConnectionStates); + _ -> + encode_plain_text(?HANDSHAKE, Version, Frag, ConnectionStates) + end. %%-------------------------------------------------------------------- -spec encode_alert_record(#alert{}, ssl_version(), #connection_states{}) -> {iolist(), #connection_states{}}. @@ -377,7 +389,25 @@ cipher(Version, Fragment, ssl_cipher:cipher(BulkCipherAlgo, CipherS0, MacHash, Fragment, Version), {CipherFragment, WriteState0#connection_state{cipher_state = CipherS1}}. %%-------------------------------------------------------------------- --spec decipher(ssl_version(), binary(), #connection_state{}) -> {binary(), binary(), #connection_state{}}. +-spec cipher_aead(ssl_version(), iodata(), #connection_state{}, MacHash::binary()) -> + {CipherFragment::binary(), #connection_state{}}. +%% +%% Description: Payload encryption +%%-------------------------------------------------------------------- +cipher_aead(Version, Fragment, + #connection_state{cipher_state = CipherS0, + sequence_number = SeqNo, + security_parameters= + #security_parameters{bulk_cipher_algorithm = + BulkCipherAlgo} + } = WriteState0, AAD) -> + + {CipherFragment, CipherS1} = + ssl_cipher:cipher_aead(BulkCipherAlgo, CipherS0, SeqNo, AAD, Fragment, Version), + {CipherFragment, WriteState0#connection_state{cipher_state = CipherS1}}. + +%%-------------------------------------------------------------------- +-spec decipher(ssl_version(), binary(), #connection_state{}, boolean()) -> {binary(), binary(), #connection_state{}} | #alert{}. %% %% Description: Payload decryption %%-------------------------------------------------------------------- @@ -387,8 +417,8 @@ decipher(Version, CipherFragment, BulkCipherAlgo, hash_size = HashSz}, cipher_state = CipherS0 - } = ReadState) -> - case ssl_cipher:decipher(BulkCipherAlgo, HashSz, CipherS0, CipherFragment, Version) of + } = ReadState, PaddingCheck) -> + case ssl_cipher:decipher(BulkCipherAlgo, HashSz, CipherS0, CipherFragment, Version, PaddingCheck) of {PlainFragment, Mac, CipherS1} -> CS1 = ReadState#connection_state{cipher_state = CipherS1}, {PlainFragment, Mac, CS1}; @@ -396,6 +426,25 @@ decipher(Version, CipherFragment, Alert end. %%-------------------------------------------------------------------- +-spec decipher_aead(ssl_version(), binary(), #connection_state{}, binary()) -> {binary(), binary(), #connection_state{}} | #alert{}. +%% +%% Description: Payload decryption +%%-------------------------------------------------------------------- +decipher_aead(Version, CipherFragment, + #connection_state{sequence_number = SeqNo, + security_parameters = + #security_parameters{bulk_cipher_algorithm = + BulkCipherAlgo}, + cipher_state = CipherS0 + } = ReadState, AAD) -> + case ssl_cipher:decipher_aead(BulkCipherAlgo, CipherS0, SeqNo, AAD, CipherFragment, Version) of + {PlainFragment, CipherS1} -> + CS1 = ReadState#connection_state{cipher_state = CipherS1}, + {PlainFragment, CS1}; + #alert{} = Alert -> + Alert + end. +%%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- empty_connection_state(ConnectionEnd) -> |