diff options
Diffstat (limited to 'lib/ssl/src/tls_record.erl')
-rw-r--r-- | lib/ssl/src/tls_record.erl | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/lib/ssl/src/tls_record.erl b/lib/ssl/src/tls_record.erl index f50ea22f39..168b2c8fd3 100644 --- a/lib/ssl/src/tls_record.erl +++ b/lib/ssl/src/tls_record.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2007-2014. All Rights Reserved. +%% Copyright Ericsson AB 2007-2015. 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 @@ -34,14 +34,14 @@ -export([get_tls_records/2]). %% Decoding --export([decode_cipher_text/2]). +-export([decode_cipher_text/3]). %% Encoding -export([encode_plain_text/4]). %% Protocol version handling -export([protocol_version/1, lowest_protocol_version/2, - highest_protocol_version/1, supported_protocol_versions/0, + highest_protocol_version/1, is_higher/2, supported_protocol_versions/0, is_acceptable_version/1, is_acceptable_version/2]). -export_type([tls_version/0, tls_atom_version/0]). @@ -142,19 +142,21 @@ encode_plain_text(Type, Version, Data, {CipherText, ConnectionStates#connection_states{current_write = WriteState#connection_state{sequence_number = Seq +1}}}. %%-------------------------------------------------------------------- --spec decode_cipher_text(#ssl_tls{}, #connection_states{}) -> +-spec decode_cipher_text(#ssl_tls{}, #connection_states{}, boolean()) -> {#ssl_tls{}, #connection_states{}}| #alert{}. %% %% Description: Decode cipher text %%-------------------------------------------------------------------- decode_cipher_text(#ssl_tls{type = Type, version = Version, - fragment = CipherFragment} = CipherText, ConnnectionStates0) -> - ReadState0 = ConnnectionStates0#connection_states.current_read, - #connection_state{compression_state = CompressionS0, - sequence_number = Seq, - security_parameters = SecParams} = ReadState0, - CompressAlg = SecParams#security_parameters.compression_algorithm, - case ssl_record:decipher(Version, CipherFragment, ReadState0) of + fragment = CipherFragment} = CipherText, + #connection_states{current_read = + #connection_state{ + compression_state = CompressionS0, + sequence_number = Seq, + security_parameters= + #security_parameters{compression_algorithm = CompressAlg} + } = ReadState0} = ConnnectionStates0, PaddingCheck) -> + case ssl_record:decipher(Version, CipherFragment, ReadState0, PaddingCheck) of {PlainFragment, Mac, ReadState1} -> MacHash = calc_mac_hash(Type, Version, PlainFragment, ReadState1), case ssl_record:is_correct_mac(Mac, MacHash) of @@ -234,6 +236,13 @@ highest_protocol_version(Version = {M,_}, [{N,_} | Rest]) when M > N -> highest_protocol_version(_, [Version | Rest]) -> highest_protocol_version(Version, Rest). +is_higher({M, N}, {M, O}) when N > O -> + true; +is_higher({M, _}, {N, _}) when M > N -> + true; +is_higher(_, _) -> + false. + %%-------------------------------------------------------------------- -spec supported_protocol_versions() -> [tls_version()]. %% |