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2017-03-07dtls: 'dtlsv1.2' corresponds to 'tlsv1.2'Ingela Anderton Andin
'dtlsv1.2' should not be included in MIN_DATAGRAM_SUPPORTED_VERSIONS as this is the default when crypto does not have sufficient support for 'tlsv1.2' and 'dtlsv1.2'
2017-03-06dtls: Correct dialyzer spec and postpone inclusion of testIngela Anderton Andin
The new_options_in_accept test is not working yet, however DTLS is still work in progress and we want to make a progress merge to avoid merge conflicts with other progress of the ssl application.
2017-03-06dtls: Erlang distribution over DTLS is not supportedIngela Anderton Andin
Erlang distribution requiers a reliable transport, which udp is not. Maybe could be interesting later when SCTP support is added to DTLS.
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: Make sure retransmission timers are runIngela Anderton Andin
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 .
2017-02-21ssl: Always prefer AES over 3DESIngela Anderton Andin
AES256 was preferred over 3DES already, so this only makes sure AES128 is preferred over 3DES also. This changes the default but probably nobody will notice as a better algorithm will be chosen anyhow.
2017-02-08ssl: Avoid SSL/TLS hello format confusionIngela Anderton Andin
Valid SSL 3.0 or TLS hellos might accidentally match SSL 2.0 format (and sometimes the other way around before inspecting data) so we need to match SSL 3.0 and TLS first and only match SSL 2.0 hellos when flag to support it is set.
2017-02-01ssl: Simplify configuration codeIngela Anderton Andin
Use map instead of large tuple, which was not an option when the code was written originally. More simplifications along these lines may be done later to the state record.
2017-02-01ssl: Make sure PEM cache works as intendedIngela Anderton Andin
Move of PEM cache to own process was flawed and not all PEM files where cached properly. We must properly handle both the ditributed and the normal mode of the ssl application.
2017-01-27Merge branch 'ingela/ssl/key-ext-validate/ERL-338/OTP-14141' into maintIngela Anderton Andin
* ingela/ssl/key-ext-validate/ERL-338/OTP-14141: ssl: The certificate path may be used as a source to find intermediate CAs for the CRL ssl: Handle more than one DistributionPoint ssl: Correct ssl_certificate:validate/3
2017-01-26ssl: The certificate path may be used as a source to find intermediate CAs ↵Ingela Anderton Andin
for the CRL
2017-01-24ssl: Handle more than one DistributionPointIngela Anderton Andin
2017-01-24ssl: Correct ssl_certificate:validate/3Ingela Anderton Andin
Changes made to ssl_certificate:validate appear to be preventing CRL validation from happening when an id-ce-extKeyUsage extension is present in the cert before the DistributionPoint extension. https://github.com/erlang/otp/blob/448e8aca77dd29ed5b37d56f0700d24ac26a7243/lib/ssl/src/ssl_certificate.erl#L131 See also ERL-338 and PR-1302
2017-01-19ssl: Move PEM cache to a dedicated processIngela Anderton Andin
The PEM cache handling has proven to be too disruptive of the manager process.
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.
2016-12-19ssl: Correct terminate behaviourIngela Anderton Andin
When the terminate function is called explicitly, to make guarantees that for instance the reuseaddr option works as expected, we must make sure that the clean up code is not run again when gen_statem calls terminate. This check was broken in the rewrite from gen_fsm to gen_statem. Caused PEM cache errors, that in some cases would cause unexpected connection failures.
2016-12-07Update copyright-yearErlang/OTP
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.
2016-11-02Add ECC curve selection order config in TLS serverFred Hebert
As per RFC 4492 Sec 5.1, the preferred order of selection of named curves is based on client preferences. Currently, the SSL application only picks entries according to the absolute order of entries as tracked in a hardcoded list in code. This patch changes things so that the client-specified order is preferred. It also allows a mode where the server can be configured to override the client's preferred order with its own, although the chosen ECC must still be within both lists. The configuration is done through the following options: - `eccs`, shared by clients and servers alike, allows the specification of the supported named curves, in their preferred order, and may eventually support more values for explicit primes and so on. - `honor_ecc_order`, a server-only option, is similar to `honor_cipher_order` and will, by default let the server pick the client-preferred ECC, and otherwise pick the server-preferred one. The default value for `eccs` is the same as before, although the server-chosen ECC now defaults to the client rather than previous choice. A function `ssl:eccs()` has been added that returns the highest supported ECCs for the library.
2016-10-10Properly filter ssl cipher suites reported as supportedDániel Szoboszlay
Adapted from commit 675ee6860d2c273bcc6c6a0536634a107e2a3d9f. Conflicts: lib/ssl/src/ssl_cipher.erl
2016-10-07Merge branch 'ingela/ssl/cipher-type-spec' into maintIngela Anderton Andin
* ingela/ssl/cipher-type-spec: ssl: Adjust cipher type to conform to implementation
2016-10-05ssl: Adjust cipher type to conform to implementationIngela Anderton Andin
2016-10-04Merge branch 'RoadRunnr/crypto/no-rc4/PR-1169/OTP-13896' into maintRaimo Niskanen
* RoadRunnr/crypto/no-rc4/PR-1169/OTP-13896: disable RC4 in SSL when crypto doesn't support it Fix compilation when OpenSSL doesn't support RC4 Conflicts: lib/crypto/c_src/crypto.c
2016-09-30ssl: Correct anonymous suite handlingIngela Anderton Andin
Test suite did not take TLS-version in to account. Also some anonymous suites where included incorrectly in some TLS versions.
2016-09-28Merge branch 'ingela/ssl/ECC-selection-fix/OTP-13918' into maint-19Erlang/OTP
* ingela/ssl/ECC-selection-fix/OTP-13918: ssl: Correct ECC curve selection, the error could cause default to always be selected.
2016-09-28ssl: Correct ECC curve selection, the error could cause default to always be ↵Ingela Anderton Andin
selected.
2016-09-27ssl: Avoid event reorderingIngela Anderton Andin
Several handshake events may be received in the same TLS packet. Then there will be several events pushed to the gen_statems internal queue. New events already in the socket-buffer should not be processed if there are more unprocessed handshake events in next_event queue. We need to handle this in the next_record/1 function.
2016-09-22disable RC4 in SSL when crypto doesn't support itAndreas Schultz
2016-09-12Merge branch 'ferd/bypass-pem-cache/PR-1143/OTP-13883' into maintIngela Anderton Andin
* ferd/bypass-pem-cache/PR-1143/OTP-13883: ssl: Add documentation of bypass_pem_cache application environment configuration ssl: Add new benchmarks to skip file for normal testing Adding PEM cache bypass benchmark entries Fixing CRL searching in cache bypass Add option to bypass SSL PEM cache
2016-09-05dtls: fix encoding of client hello cookieAndreas Schultz
2016-09-05dtls: Prepare start of DTLS connection manager with SSL appAndreas Schultz
2016-09-05ssl: Refactor to use maps for the connection statesIngela Anderton Andin
2016-09-05ssl, dtls: Refactor sni handlingIngela Anderton Andin
2016-09-05dtls: Add close/5Ingela Anderton Andin
2016-09-05dtls: Add renegotiate/2Ingela Anderton Andin
2016-09-05dtls: Add protocol event handlingIngela Anderton Andin
2016-09-05ssl: Refactor code so that tls and dtls can share more codeIngela Anderton Andin
We want to share more alert and application data handling code. Some of the application data handling code, packet handling, will not be relevant for dtls, but this code can be excluded from dtls by options checking.
2016-09-05ssl, dtls: Disable V2 compatibility clause from ↵Ingela Anderton Andin
ssl_handshake:update_handshake_history This proably a much bigger problem for DTLS than TLS, but should be disabled for both unless explicitly configured for TLS.
2016-09-05ssl: Make sure common code for TLS and DTLS uses the TLS VersionIngela Anderton Andin
When protocol version is proagated from the DTLS connection processes state into general ssl functions it must be converted to the corresponding TLS version.
2016-09-05ssl: remove unused RecordCB argument from master_secretAndreas Schultz
Conflicts: lib/ssl/src/ssl_handshake.erl
2016-09-05dtls: Add reinit_handshake_data/1 to dtlsIngela Anderton Andin
The callback is invoke before entering state 'connection'. It allows a connection module to remove data from the connection state that is no longer needed (e.g. handshake history).
2016-09-05dtls: replace tls_record with RecordCB in connection_infoAndreas Schultz
Conflicts: lib/ssl/src/ssl_connection.erl
2016-09-05Fix version numbers and dependenciesRaimo Niskanen
2016-08-31Merge branch 'raimo/gen_statem-callback_mode/OTP-13752' into maintRaimo Niskanen
* raimo/gen_statem-callback_mode/OTP-13752: ssl: Upgrade suite testing skipped if stdlib upgrade is required Fix version numbers and dependencies Conflicts: lib/ssl/src/ssl.appup.src lib/ssl/vsn.mk
2016-08-31ssl: Gracefulness behaviour when receiving partially malformed messagesIngela Anderton Andin
2016-08-29ssl: Remove clause that postponed unexpected messagesIngela Anderton Andin
2016-08-25Fix version numbers and dependenciesRaimo Niskanen
2016-08-24Merge branch 'raimo/gen_statem-callback_mode/OTP-13752' into maintRaimo Niskanen
* raimo/gen_statem-callback_mode/OTP-13752: Include trap_exit in server skeletons Improve sys debug Handle exceptions in init/1 and callback_mode/0 Clarify error values Doc fixes Rewrite SSH for gen_statem M:callback_mode/0 Rewrite SSL for gen_statem M:callback_mode/0 Rewrite Tools for gen_statem M:callback_mode/0 Rewrite gen_statem docs for M:callback_mode/0 Rewrite gen_statem TCs for M:callback_mode/0 Rewrite gen_statem for M:callback_mode/0
2016-08-22Fixing CRL searching in cache bypassFred Hebert