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2018-07-19ssl: Fix handling of TLS record versionsPéter Dimitrov
- Introduce new macro ALL_TLS_RECORD_VERSIONS to decouple ALL_AVAILABLE_VERSIONS from the list of valid TLS record versions. It consists of versions allowed in TLSCiphertext.version (TLS 1.2 and prior) and TLSCiphertext.legacy_record_version (TLS 1.3). - TLS 1.3 sets TLSCiphertext.legacy_record_version to 0x0303 for all records generated other than an initial ClientHello, where it MAY also be 0x0301. - TLSPlaintext.legacy_record_version is ignored. Change-Id: Iabb1a954ab21f8be012e6460ae99ab533e31e123
2018-07-11Merge branch 'maint'Ingela Anderton Andin
2018-07-09ssl: Improve error handlingIngela Anderton Andin
When doing ssl:controlling_process on a ssl socket that has not performed the TLS/DTLS handshake that call will succeed even though the documentation stated otherwise. However if some other ssl option was incorrect the call would hang. Now {error, closed} will be returned in the latter case, which is logical independent on if it should succeed or not in the former case. The former case will continue to succeed, as it is not dependent of the TLS/DTLS connection being established, and the documentation is altered slightly to not explicitly disallow it. If the TLS/DTLS connection later fails and the socket mode is active, the new controlling process will be notified as expected.
2018-07-02ssl: Add support for stateful loggingPéter Dimitrov
- Introduce stateful logging levels to the ssl application: The SSL option 'log_alert' sets log level to notice/warning if it is set to true/false. Default log level is notice. - Add new SSL option 'log_level' that overrides the value of 'log_alert'. Default value is notice. - 'log_level' debug triggers verbose logging of TLS protocol messages and logging of ignored alerts in DTLS. Change-Id: I28d3f4029a5d504ec612abe4b9ae0b7d9b115197
2018-06-20ssl: Update domain filter, use log macrosPéter Dimitrov
Change-Id: Id52990a105c81373c7c6034df9a2675f9d0e429a
2018-06-20ssl: Add logging for TLS Handshake ProtocolPéter Dimitrov
- Add logging for TLS Handshake messages. - Remove version from the input map used in format/2. Change-Id: I1a8a3dbe5854d3b25cca33e9a6634ac9a53d5867
2018-06-20ssl: Add logging for TLS record protocolPéter Dimitrov
Change-Id: I18786a9a8523d0ec3d9ca37ad5b2284721c5c4a1
2018-06-18Update copyright yearHenrik Nord
2018-04-24ssl: Add new API functionsIngela Anderton Andin
2018-04-24ssl: Prepare to replace ssl:ssl_accept with ssl:handshakeIngela Anderton Andin
2018-03-09ssl: Remove interoperability option v2_hello_compatibleIngela Anderton Andin
2018-01-24Merge branch 'maint'Ingela Anderton Andin
2018-01-23ssl: Add record version sanity checkIngela Anderton Andin
2018-01-04Merge branch 'maint'Ingela Anderton Andin
Conflicts: lib/ssl/src/tls_connection.erl
2018-01-04ssl: Prevent error handling race conditionIngela Anderton Andin
ERL-539
2017-12-04Merge branch 'raimo/ssl-dist-bench/OTP-14657'Raimo Niskanen
* origin/raimo/ssl-dist-bench/OTP-14657: Write SSL distribution benchmarks Polish SSL distribution Handle whitebox test message Correct distribution doc Use SNI when connecting Use -ssl_dist_optfile options Read in -ssl_dist_optfile to ETS Facilitate test certs with common root Stop checking DNS name for SNI
2017-12-04Polish SSL distributionRaimo Niskanen
2017-11-29Merge branch 'maint'Ingela Anderton Andin
2017-11-29Merge branch 'ingela/ssl/ERL-521/OTP-14794' into maintIngela Anderton Andin
* ingela/ssl/ERL-521/OTP-14794: ssl: Make sure all possible data is delivered
2017-11-29Merge branch 'maint'Ingela Anderton Andin
Conflicts: lib/ssl/src/ssl_connection.erl
2017-11-28ssl: Make sure all possible data is deliveredIngela Anderton Andin
2017-11-24ssl: Add gracefullness to dtls codeIngela Anderton Andin
Also make tls code a little more direct for easier uderstanding
2017-11-24ssl: Remove old softupgrade codeIngela Anderton Andin
This code is only relevant in version is was written in.
2017-11-24ssl: Use genstamtem properlyIngela Anderton Andin
2017-11-23Merge branch 'maint'Ingela Anderton Andin
Conflicts: OTP_VERSION
2017-11-23Merge branch 'maint-20' into maintIngela Anderton Andin
* maint-20: Updated OTP version Update release notes Update version numbers public_key: verify ip (both v4 and v6) public_key: Added IP4 address checks to hostname_verification tests ssl: Fix test cases to work on all test platforms public_key: Fix dialyzer spec ssl: Sessions must be registered with SNI if exists ssl: Extend hostname check to fallback to checking IP-address public_key, ssl: Handles keys so that APIs are preserved correctly ssl: Use ?FUNCTION_NAME ssl: Prepare for release ssl: Countermeasurements for Bleichenbacher attack Conflicts: lib/public_key/doc/src/public_key.xml lib/public_key/test/public_key_SUITE.erl lib/public_key/test/public_key_SUITE_data/pkix_verify_hostname_subjAltName_IP.pem lib/public_key/test/public_key_SUITE_data/verify_hostname_ip.conf lib/ssl/src/dtls_connection.erl lib/ssl/src/ssl_connection.erl lib/ssl/src/ssl_handshake.erl
2017-11-22Merge branch ↵Erlang/OTP
'ingela/maint-20/ssl/extend-hostname-check/OTP-14632/OTP-14655/OTP-14766' into maint-20 * ingela/maint-20/ssl/extend-hostname-check/OTP-14632/OTP-14655/OTP-14766: ssl: Fix test cases to work on all test platforms public_key: Fix dialyzer spec ssl: Sessions must be registered with SNI if exists ssl: Extend hostname check to fallback to checking IP-address public_key, ssl: Handles keys so that APIs are preserved correctly ssl: Use ?FUNCTION_NAME
2017-11-16Merge branch 'maint'Ingela Anderton Andin
Conflicts: lib/ssl/src/dtls_connection.erl lib/ssl/src/ssl_connection.erl lib/ssl/src/ssl_handshake.erl lib/ssl/src/tls_connection.erl
2017-11-16ssl: Align code of main modules implementing the gen_statem behaviourIngela Anderton Andin
2017-11-09 ssl: Use ?FUNCTION_NAMEIngela Anderton Andin
Use ?FUNCTION_NAME macro to enhance code as we will not back-port this version of the ssl application to versions pre OTP 19.
2017-11-09ssl: Countermeasurements for Bleichenbacher attackIngela Anderton Andin
2017-10-16Merge branch 'maint'Ingela Anderton Andin
Conflicts: lib/ssl/src/ssl_connection.erl
2017-10-16 ssl: Use ?FUNCTION_NAMEIngela Anderton Andin
Use ?FUNCTION_NAME macro to enhance code as we will not back-port this version of the ssl application to versions pre OTP 19.
2017-10-02Merge branch 'maint'Ingela Anderton Andin
2017-09-30dtls: Compleate DTLS renegotiate implementationIngela Anderton Andin
2017-09-27Pass all info's to the ssl_connection state functionRaimo Niskanen
2017-09-26Remove ssl_tls_dist_ctrl processRaimo Niskanen
2017-07-07ssl: Enhance error loggingIngela Anderton Andin
2017-05-30Better fix for non-delivery of ssl_closed message in active onceIngela Andin
This is taken from https://github.com/erlang/otp/pull/1479#issuecomment-304667528 with permission from Ingela Andin and improves commit 8abe16c22d.
2017-05-25Fix non-delivery of ssl_closed message in active onceJohannes Weißl
The commit 8b10920 (OTP 19.3.1) fixed the non-delivery of final TLS record in {active, once}, but this causes the ssl_closed message to be lost when the TCP connection closes before ssl:close/1. The patch restores the behavior of OTP 18. This is the second part to fix https://bugs.erlang.org/browse/ERL-420
2017-05-16ssl: Adopt setopts and getopts for DTLSIngela Anderton Andin
2017-05-04Update copyright yearRaimo Niskanen
2017-04-21ssl: TLS-1.2 clients will now always send hello messages on its own format.Ingela Anderton Andin
Note this is a change form how it works for earlier versions that will send the first hello message on the lowest supported version. From RFC 5246 Appendix E. Backward Compatibility E.1. Compatibility with TLS 1.0/1.1 and SSL 3.0 Since there are various versions of TLS (1.0, 1.1, 1.2, and any future versions) and SSL (2.0 and 3.0), means are needed to negotiate the specific protocol version to use. The TLS protocol provides a built-in mechanism for version negotiation so as not to bother other protocol components with the complexities of version selection. TLS versions 1.0, 1.1, and 1.2, and SSL 3.0 are very similar, and use compatible ClientHello messages; thus, supporting all of them is relatively easy. Similarly, servers can easily handle clients trying to use future versions of TLS as long as the ClientHello format remains compatible, and the client supports the highest protocol version available in the server. A TLS 1.2 client who wishes to negotiate with such older servers will send a normal TLS 1.2 ClientHello, containing { 3, 3 } (TLS 1.2) in ClientHello.client_version. If the server does not support this version, it will respond with a ServerHello containing an older version number. If the client agrees to use this version, the negotiation will proceed as appropriate for the negotiated protocol. If the version chosen by the server is not supported by the client (or not acceptable), the client MUST send a "protocol_version" alert message and close the connection. If a TLS server receives a ClientHello containing a version number greater than the highest version supported by the server, it MUST reply according to the highest version supported by the server. A TLS server can also receive a ClientHello containing a version number smaller than the highest supported version. If the server wishes to negotiate with old clients, it will proceed as appropriate for the highest version supported by the server that is not greater than ClientHello.client_version. For example, if the server supports TLS 1.0, 1.1, and 1.2, and client_version is TLS 1.0, the server will proceed with a TLS 1.0 ServerHello. If server supports (or is willing to use) only versions greater than client_version, it MUST send a "protocol_version" alert message and close the connection. Whenever a client already knows the highest protocol version known to a server (for example, when resuming a session), it SHOULD initiate the connection in that native protocol. Note: some server implementations are known to implement version negotiation incorrectly. For example, there are buggy TLS 1.0 servers that simply close the connection when the client offers a version newer than TLS 1.0. Also, it is known that some servers will refuse the connection if any TLS extensions are included in ClientHello. Interoperability with such buggy servers is a complex topic beyond the scope of this document, and may require multiple connection attempts by the client. Earlier versions of the TLS specification were not fully clear on what the record layer version number (TLSPlaintext.version) should contain when sending ClientHello (i.e., before it is known which version of the protocol will be employed). Thus, TLS servers compliant with this specification MUST accept any value {03,XX} as the record layer version number for ClientHello. TLS clients that wish to negotiate with older servers MAY send any value {03,XX} as the record layer version number. Typical values would be {03,00}, the lowest version number supported by the client, and the value of ClientHello.client_version. No single value will guarantee interoperability with all old servers, but this is a complex topic beyond the scope of this document.
2017-04-04Merge branch 'maint'Ingela Anderton Andin
Conflicts: OTP_VERSION erts/vsn.mk lib/crypto/c_src/crypto.c lib/crypto/src/crypto.erl lib/ssh/src/ssh.erl
2017-03-27ssl: Avoid data loss in active onceIngela Anderton Andin
Emulate active once in such a way that data recived by the TLS connection process, but not fetch via active once option by the user, can be delivered at next active once before final close.
2017-03-10Update copyright yearRickard Green
2017-03-06dtls: Hibernation and retransmit timersIngela Anderton Andin
Change retransmissions timers to use gen_statem state timeouts. We do not need a retransmission timer in the state connection as data traffic in DTLS over UDP is not retransmitted. If the last flight before transitioning into connection is lost, it will be resent when the peer resends its last flight. This will also make hibernation testing more straight forward. We need more adjustments later to handle a reliable DTLS transport such as SCTP.
2017-03-06dtls: DTLS specific handling of socket and ciphersIngela Anderton Andin
DTLS does not support stream ciphers and needs diffrent handling of the "#ssl_socket{}" handle .
2017-01-17ssl: Handle really big handshake packagesIngela Anderton Andin
If a handshake message is really big it could happen that the ssl process would hang due to failing of requesting more data from the socket. This has been fixed. Also added option to limit max handshake size. It has a default value that should be big enough to handle normal usage and small enough to mitigate DoS attacks.
2016-12-05ssl: Implement DTLS state machineIngela Anderton Andin
Beta DTLS, not production ready. Only very basically tested, and not everything in the SPEC is implemented and some things are hard coded that should not be, so this implementation can not be consider secure. Refactor "TLS connection state" and socket handling, to facilitate DTLS implementation. Create dtls "listner" (multiplexor) process that spawns DTLS connection process handlers. Handle DTLS fragmentation. Framework for handling retransmissions. Replay Detection is not implemented yet. Alerts currently always handled as in TLS.
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