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| author | Ingela Anderton Andin <[email protected]> | 2017-05-18 11:34:15 +0200 |
|---|---|---|
| committer | Ingela Anderton Andin <[email protected]> | 2017-05-23 09:49:34 +0200 |
| commit | 5732ccaa4a58e80322aeebddd992892326940da5 (patch) | |
| tree | 723af3769b25eb2a5243f3a44abaab0c73013ff7 /lib/ssl/src/dtls_connection.erl | |
| parent | 5b3a2b854eb537b07127bd6d369521d2f525f6c0 (diff) | |
| download | otp-5732ccaa4a58e80322aeebddd992892326940da5.tar.gz otp-5732ccaa4a58e80322aeebddd992892326940da5.tar.bz2 otp-5732ccaa4a58e80322aeebddd992892326940da5.zip | |
dtls: Check for retransmitted changes_cipher_spec messages
Make sure to use current epoch as input to send_handshake_flight.
Diffstat (limited to 'lib/ssl/src/dtls_connection.erl')
| -rw-r--r-- | lib/ssl/src/dtls_connection.erl | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/lib/ssl/src/dtls_connection.erl b/lib/ssl/src/dtls_connection.erl index 01621c68c6..2de947d8b4 100644 --- a/lib/ssl/src/dtls_connection.erl +++ b/lib/ssl/src/dtls_connection.erl @@ -750,7 +750,13 @@ next_event(connection = StateName, no_record, {#ssl_tls{epoch = Epoch, type = ?HANDSHAKE, version = _Version}, State1} = _Record when Epoch == CurrentEpoch-1 -> - {State, MoreActions} = send_handshake_flight(State1, Epoch), + {State, MoreActions} = send_handshake_flight(State1, CurrentEpoch), + {next_state, StateName, State, Actions ++ MoreActions}; + %% From FLIGHT perspective CHANGE_CIPHER_SPEC is treated as a handshake + {#ssl_tls{epoch = Epoch, + type = ?CHANGE_CIPHER_SPEC, + version = _Version}, State1} = _Record when Epoch == CurrentEpoch-1 -> + {State, MoreActions} = send_handshake_flight(State1, CurrentEpoch), {next_state, StateName, State, Actions ++ MoreActions}; {#ssl_tls{epoch = _Epoch, version = _Version}, State1} -> @@ -760,6 +766,25 @@ next_event(connection = StateName, no_record, {#alert{} = Alert, State} -> {next_state, StateName, State, [{next_event, internal, Alert} | Actions]} end; +next_event(connection = StateName, Record, + #state{connection_states = #{current_read := #{epoch := CurrentEpoch}}} = State0, Actions) -> + case Record of + #ssl_tls{epoch = CurrentEpoch} -> + {next_state, StateName, State0, [{next_event, internal, {protocol_record, Record}} | Actions]}; + #ssl_tls{epoch = Epoch, + type = ?HANDSHAKE, + version = _Version} when Epoch == CurrentEpoch-1 -> + {State, MoreActions} = send_handshake_flight(State0, CurrentEpoch), + {next_state, StateName, State, Actions ++ MoreActions}; + %% From FLIGHT perspective CHANGE_CIPHER_SPEC is treated as a handshake + #ssl_tls{epoch = Epoch, + type = ?CHANGE_CIPHER_SPEC, + version = _Version} when Epoch == CurrentEpoch-1 -> + {State, MoreActions} = send_handshake_flight(State0, CurrentEpoch), + {next_state, StateName, State, Actions ++ MoreActions}; + _ -> + next_event(StateName, no_record, State0, Actions) + end; next_event(StateName, Record, #state{connection_states = #{current_read := #{epoch := CurrentEpoch}}} = State0, Actions) -> case Record of |