Commit Graph

2348 Commits

Author SHA1 Message Date
Adam Langley
40cdb3b5da Don't test |initial_handshake_complete| for dummy PQ padding status.
Checking |initial_handshake_complete| was a mistake—it's not true for
False Start connections at the time when Chrome wants to measure whether
PQ padding was used or not.

Change-Id: I51757e00f3e02129666ee1ce31c30d63f1bcbe74
Reviewed-on: https://boringssl-review.googlesource.com/26444
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2018-03-07 20:27:11 +00:00
Adam Langley
8df8e64205 Record whether dummy PQ padding was used.
On reflection, I think we'll need to note whether dummy PQ padding was
echoed on a given connection. Otherwise measurements in Chrome will be
mixed with cases where people have MITM proxies that ignored the
extension, or possibly Google frontends that haven't been updated.

Therefore this change will be used to filter latency measurements in
Chrome to only include those where the extension was echoed and we'll
measure at levels of 1 byte (for control), 400 bytes, and 1100 bytes.

This also makes it an error if the server didn't echo an extension of
the same length as was sent.

Change-Id: Ib2a0b29cfb8719a75a28f3cf96710c57d88eaa68
Reviewed-on: https://boringssl-review.googlesource.com/26284
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
2018-02-28 23:38:53 +00:00
Adam Langley
4702db6306 Update dummy PQ extension for round two.
In this round, Google servers will echo the extension in order to test
the latency of both parties sending a PQ key-agreement message.

The extension is sent (and echoed) for both full and resumption
handshakes. This is intended to mirror the overhead of TLS 1.3 (even
when using TLS 1.2), as a resumption in TLS 1.3 still does a fresh key
agreement.

Change-Id: I9ad163afac4fd1d916f9c7359ec32994e283abeb
Reviewed-on: https://boringssl-review.googlesource.com/26185
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2018-02-27 20:13:53 +00:00
Adam Langley
e745b25dcb Remove trailing whitespace from ssl/.
Change-Id: Ibcb27e1e5b14294c9d877db89ae62ef138e9e061
Reviewed-on: https://boringssl-review.googlesource.com/26184
Reviewed-by: Adam Langley <agl@google.com>
2018-02-26 22:05:13 +00:00
David Benjamin
c03ecb93a2 Remove SSLv3_method and friends.
SSLv3_method, SSLv3_client_method, and SSLv3_server_method produce
SSL_CTXs which fail every handshake. They appear no longer necessary for
compatibility, so remove them.

SSLv3 is still accessible to callers who explicitly re-enable SSLv3 on a
TLS_method, but that will be removed completely later this year.
Meanwhile, clear out a weird hack we had here.

Update-Note: I believe there are no more callers of these functions. Any
   that were were already non-functional as these methods haven't been
   unable to handshake for a while now.

Change-Id: I622f785b428ab0ceab77b5a9db05b2b0df28145a
Reviewed-on: https://boringssl-review.googlesource.com/26004
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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2018-02-15 15:29:18 +00:00
David Benjamin
1bf2337fe1 Reject compressed ECDH coordinates in TLS.
We don't advertise compressed coordinates (and point format negotiation
was deprecated in TLS 1.3), so reject them. Both Internet Explorer and
Firefox appear to reject them already.

Later I hope to add an easier to use ECDH API that acts on bytes, not
EC_POINT. This clears the way for that API to only accept uncompressed
coordinates. Compressed coordinates never got deployed over NIST curves,
for better or worse. At this point, there is no sense in changing that
as new protocols should use curve25519.

Change-Id: Id2f1be791ddcf155d596f4eb0b79351766c5cdab
Reviewed-on: https://boringssl-review.googlesource.com/26024
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Adam Langley <agl@google.com>
2018-02-15 01:42:54 +00:00
David Benjamin
fa65113400 Push an error if custom private keys fail.
The private key callback may not push one of its own (it's possible to
register a custom error library and whatnot, but this is tedious). If
the callback does not push any, we report SSL_ERROR_SYSCALL. This is not
completely wrong, as "syscall" really means "I don't know, something you
gave me, probably the BIO, failed so I assume you know what happened",
but most callers just check errno. And indeed cert_cb pushes its own
error, so this probably should as well.

Update-Note: Custom private key callbacks which push an error code on
    failure will report both that error followed by
    SSL_R_PRIVATE_KEY_OPERATION_FAILED. Callbacks which did not push any
    error will switch from SSL_ERROR_SYSCALL to SSL_ERROR_SSL with
    SSL_R_PRIVATE_KEY_OPERATION_FAILED.

Change-Id: I7e90cd327fe0cbcff395470381a3591364a82c74
Reviewed-on: https://boringssl-review.googlesource.com/25544
Reviewed-by: Adam Langley <agl@google.com>
2018-02-01 21:43:42 +00:00
David Benjamin
48669209b7 Fix fuzzer mode suppressions.
All the patterns need to account for a possible "-Split" version now.

Change-Id: Ie1b38ce10777d61d70a4d5a8bb2d44cdc98e4bfb
Reviewed-on: https://boringssl-review.googlesource.com/25504
Reviewed-by: Adam Langley <agl@google.com>
2018-01-31 22:57:51 +00:00
Adam Langley
ddb57cfb51 Add tests for split handshakes.
This change adds a couple of focused tests to ssl_test.cc, but also
programmically duplicates many runner tests in a split-handshake mode.

Change-Id: I9dafc8a394581e5daf1318722e1015de82117fd9
Reviewed-on: https://boringssl-review.googlesource.com/25388
Commit-Queue: Adam Langley <agl@google.com>
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Reviewed-by: Adam Langley <agl@google.com>
2018-01-31 22:33:42 +00:00
Adam Langley
3fe8fa74ac Add initial, experimental support for split handshakes.
Split handshakes allows the handshaking of a TLS connection to be
performed remotely. This encompasses not just the private-key and ticket
operations – support for that was already available – but also things
such as selecting the certificates and cipher suites.

The the comment block in ssl.h for details. This is highly experimental
and will change significantly before its settled.

Change-Id: I337bdfa4c3262169e9b79dd4e70b57f0d380fcad
Reviewed-on: https://boringssl-review.googlesource.com/25387
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
2018-01-31 22:24:17 +00:00
Steven Valdez
7e5dd25d47 Remove draft22 and experiment2.
Change-Id: I2486dc810ea842c534015fc04917712daa26cfde
Update-Note: Now that tls13_experiment2 is gone, the server should remove the set_tls13_variant call. To avoid further churn, we'll make the server default for future variants to be what we'd like to deploy.
Reviewed-on: https://boringssl-review.googlesource.com/25104
Commit-Queue: Steven Valdez <svaldez@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2018-01-31 18:07:53 +00:00
Nick Harper
3c034b2cf3 Add support for QUIC transport params.
This adds support for sending the quic_transport_parameters
(draft-ietf-quic-tls) in ClientHello and EncryptedExtensions, as well as
reading the value sent by the peer.

Bug: boringssl:224
Change-Id: Ied633f557cb13ac87454d634f2bd81ab156f5399
Reviewed-on: https://boringssl-review.googlesource.com/24464
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2018-01-30 23:54:40 +00:00
Matthew Braithwaite
5301c10c53 ssl_verify_peer_cert: implement |SSL_VERIFY_NONE| as advertised.
Since SSL{,_CTX}_set_custom_verify take a |mode| parameter that may be
|SSL_VERIFY_NONE|, it should do what it says on the tin, which is to
perform verification and ignore the result.

Change-Id: I0d8490111fb199c6b325cc167cf205316ecd4b49
Reviewed-on: https://boringssl-review.googlesource.com/25224
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2018-01-26 22:42:17 +00:00
Adam Langley
e8d2439cd3 Expose ssl_session_serialize to libssl.
This function can serialise a session to a |CBB|.

Change-Id: Icdb7aef900f03f947c3fa4625dd218401eb8eafc
Reviewed-on: https://boringssl-review.googlesource.com/25385
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2018-01-26 22:31:47 +00:00
David Benjamin
0ab3f0ca25 Notice earlier if a server echoes the TLS 1.3 compatibility session ID.
Mono's legacy TLS 1.0 stack, as a server, does not implement any form of
resumption, but blindly echos the ClientHello session ID in the
ServerHello for no particularly good reason.

This is invalid, but due to quirks of how our client checked session ID
equality, we only noticed on the second connection, rather than the
first. Flaky failures do no one any good, so break deterministically on
the first connection, when we realize something strange is going on.

Bug: chromium:796910
Change-Id: I1f255e915fcdffeafb80be481f6c0acb3c628846
Reviewed-on: https://boringssl-review.googlesource.com/25424
Commit-Queue: Steven Valdez <svaldez@google.com>
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2018-01-26 21:53:27 +00:00
Adam Langley
449a9e6a9e Make the gdb window larger.
Running can spawn gdb in an xterm, but the default xterm is rather
small. We could have everyone set their .Xdefaults, I presume, to solve
this, but very few people are running the old xterm these days.

Change-Id: I46eb3ff22f292eb44ce8c5124e83f1ab8aef9547
Reviewed-on: https://boringssl-review.googlesource.com/24846
Reviewed-by: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2018-01-26 19:59:23 +00:00
Adam Langley
ab5a947d8e Reslice TLS AEAD setup.
This change reslices how the functions that generate the key block and
initialise the TLS AEADs are cut. This makes future changes easier.

Change-Id: I7e0f7327375301bed96f33c195b80156db83ce6d
Reviewed-on: https://boringssl-review.googlesource.com/24845
Reviewed-by: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2018-01-26 19:48:03 +00:00
Adam Langley
c61b577197 Add some more utility functions to bytestring.
Change-Id: I7932258890b0b2226ff6841af45926e1b11979ba
Reviewed-on: https://boringssl-review.googlesource.com/24844
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2018-01-25 23:51:36 +00:00
David Benjamin
610cdbb102 Switch some ints to bools and Spans.
Change-Id: I505b29ae20fb660229900c4e046a0b1e5606d02c
Reviewed-on: https://boringssl-review.googlesource.com/25164
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Steven Valdez <svaldez@google.com>
2018-01-24 19:24:07 +00:00
David Benjamin
a7bc94489f Don't use the client_random entropy for GREASE.
No sense in tempting middleboxes unnecessarily.

Change-Id: Iec66f77195f6b8aa62be681917342e59eb7aba31
Reviewed-on: https://boringssl-review.googlesource.com/24964
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Steven Valdez <svaldez@google.com>
2018-01-23 19:10:40 +00:00
Steven Valdez
cb15cfda29 Add draft23 tests.
Change-Id: Ic77bc2f55e1e997ea20641cae66b0deddf1ef99c
Reviewed-on: https://boringssl-review.googlesource.com/25084
Commit-Queue: Steven Valdez <svaldez@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2018-01-22 20:29:38 +00:00
Nick Harper
36fcc4ca5d Implement Token Binding
Update-Note: Token Binding can no longer be configured with the custom
  extensions API. Instead, use the new built-in implementation. (The
  internal repository should be all set.)

Bug: 183

Change-Id: I007523a638dc99582ebd1d177c38619fa7e1ac38
Reviewed-on: https://boringssl-review.googlesource.com/20645
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2018-01-22 20:08:28 +00:00
Adam Langley
37c6eb4284 Support TLS KDF test for NIAP.
NIAP requires that the TLS KDF be tested by CAVP so this change moves
the PRF into crypto/fipsmodule/tls and adds a test harness for it. Like
the KAS tests, this is only triggered when “-niap” is passed to
run_cavp.go.

Change-Id: Iaa4973d915853c8e367e6106d829e44fcf1b4ce5
Reviewed-on: https://boringssl-review.googlesource.com/24666
Reviewed-by: Adam Langley <agl@google.com>
2018-01-16 22:57:17 +00:00
David Benjamin
afd1cd959e Work around an NDK / Android bug.
The NDK r16 sometimes generates binaries with the DF_1_PIE, which the
runtime linker on Android N complains about. The next NDK revision
should work around this but, in the meantime, strip its error out.

https://github.com/android-ndk/ndk/issues/602
https://android-review.googlesource.com/c/platform/bionic/+/259790
https://android-review.googlesource.com/c/toolchain/binutils/+/571550

Change-Id: I99306d42f11179d5d19bd3f107a7386cc5c690db
Reviewed-on: https://boringssl-review.googlesource.com/24884
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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2018-01-16 16:52:46 +00:00
Adam Langley
512a289a8a Add support for dummy PQ padding.
This extension will be used to measure the latency impact of potentially
sending a post-quantum key share by default. At this time it's purely
measuring the impact of the client sending the key share, not the server
replying with a ciphertext.

We could use the existing padding extension for this but that extension
doesn't allow the server to echo it, so we would need a different
extension in the future anyway. Thus we just create one now.

We can assume that modern clients will be using TLS 1.3 by the time that
PQ key-exchange is established and thus the key share will be sent in
all ClientHello messages. However, since TLS 1.3 isn't quite here yet,
this extension is also sent for TLS 1.0–1.2 ClientHellos. The latency
impact should be the same either way.

Change-Id: Ie4a17551f6589b28505797e8c54cddbe3338dfe5
Reviewed-on: https://boringssl-review.googlesource.com/24585
Commit-Queue: Adam Langley <agl@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2018-01-10 00:27:31 +00:00
Steven Valdez
74666da5b3 Update key share extension number for draft23.
Change-Id: I7561fc7e04d726ea9e26f645da10e45b62a20627
Reviewed-on: https://boringssl-review.googlesource.com/24704
Commit-Queue: Steven Valdez <svaldez@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2018-01-09 15:22:02 +00:00
Matthew Braithwaite
9770532afa Map NOT_YET_VALID errors to |certificate_expired|.
The language of RFC 5246 is "A certificate has expired or is not
currently valid", which sounds to me like |certificate_expired| should
pertain to any case where the current time is outside the
certificate's validity period.

Along the way, group the |unknown_ca| errors together.

Change-Id: I92c1fe3fc898283d0c7207625de36662cd0f784e
Reviewed-on: https://boringssl-review.googlesource.com/24624
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2018-01-05 23:40:40 +00:00
Adam Langley
2f9b47fb19 Better pack structs in ssl/internal.h
Change-Id: I632a5c9067860216f9252907b104ba605c33a50d
Reviewed-on: https://boringssl-review.googlesource.com/24584
Reviewed-by: David Benjamin <davidben@google.com>
2018-01-04 21:08:36 +00:00
Marek Gilbert
11850d5f61 Rename all googletest CMake targets
CMake targets are visible globally but gtest_main has boringssl-specific
behavior that isn't appropriate for general use.

This change makes it possible to use boringssl and abseil-cpp in the
same project (since abseil-cpp expects gtest_main to exist and be useful
for its own tests).

Change-Id: Icc81c11b8bb4b1e21cea7c9fa725b6c082bd5369
Reviewed-on: https://boringssl-review.googlesource.com/24604
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2018-01-04 16:30:54 +00:00
Matthew Braithwaite
e15019572b SSL_alert_from_verify_result: expose.
This function maps |X509_V_ERR_*| to SSL alarm codes.  It's used
internally when certs are verified with X509_verify_cert(), and is
helpful to callers who want to call that function, but who also want
to report its errors in a less implementation-dependent way.

Change-Id: I2900cce2eb631489f0947c317beafafd3ea57a75
Reviewed-on: https://boringssl-review.googlesource.com/24564
Commit-Queue: Matt Braithwaite <mab@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2018-01-03 22:02:42 +00:00
David Benjamin
6df6540766 Add a draft TLS 1.3 anti-downgrade signal.
TLS 1.3 includes a server-random-based anti-downgrade signal, as a
workaround for TLS 1.2's ServerKeyExchange signature failing to cover
the entire handshake. However, because TLS 1.3 draft versions are each
doomed to die, we cannot deploy it until the final RFC. (Suppose a
draft-TLS-1.3 client checked the signal and spoke to a final-TLS-1.3
server. The server would correctly negotiate TLS 1.2 and send the
signal. But the client would then break. An anologous situation exists
with reversed roles.)

However, it appears that Cisco devices have non-compliant TLS 1.2
implementations[1] and copy over another server's server-random when
acting as a TLS terminator (client and server back-to-back).

Hopefully they are the only ones doing this. Implement a
measurement-only version with a different value. This sentinel must not
be enforced, but it will tell us whether enforcing it will cause
problems.

[1] https://www.ietf.org/mail-archive/web/tls/current/msg25168.html

Bug: 226
Change-Id: I976880bdb2ef26f51592b2f6b3b97664342679c8
Reviewed-on: https://boringssl-review.googlesource.com/24284
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Adam Langley <agl@google.com>
2017-12-21 01:50:33 +00:00
David Benjamin
02e6256b16 Move early_data_accepted to ssl->s3.
This is connection state, not configuration, so it must live on
ssl->s3, otherwise SSL_clear will be confused.

Change-Id: Id7c87ced5248d3953e37946e2d0673d66bfedb08
Reviewed-on: https://boringssl-review.googlesource.com/24264
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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2017-12-19 15:44:38 +00:00
David Benjamin
d90b8033d7 Clear the error queue in fuzzer-mode Channel ID hooks.
Otherwise it leaves something on the error queue and confuses
SSL_get_error, should the handshake state machine fail immediately
afterwards because of a BIO-level error.

Change-Id: I2c7b5e31368b9c5b2efa324166f52972430d6074
Reviewed-on: https://boringssl-review.googlesource.com/24247
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-12-18 21:56:32 +00:00
Steven Valdez
64cc121f41 Remove deprecated TLS 1.3 variants.
Upgrade-Note: SSL_CTX_set_tls13_variant(tls13_experiment) on the server
should switch to SSL_CTX_set_tls13_variant(tls13_experiment2).
(Configuring any TLS 1.3 variants on the server enables all variants,
so this is a no-op. We're just retiring some old experiments.)
Change-Id: I60f0ca3f96ff84bdf59e1a282a46e51d99047462
Reviewed-on: https://boringssl-review.googlesource.com/23784
Commit-Queue: Steven Valdez <svaldez@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2017-12-18 21:20:32 +00:00
David Benjamin
f88242d1c1 SSL_export_keying_material should work in half-RTT.
QUIC will need to derive keys at this point. This also smooths over a
part of the server 0-RTT abstraction. Like with False Start, the SSL
object is largely in a functional state at this point.

Bug: 221
Change-Id: I4207d8cb1273a1156e728a7bff3943cc2c69e288
Reviewed-on: https://boringssl-review.googlesource.com/24224
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-12-18 16:53:13 +00:00
Steven Valdez
f98b582ded Fix tls13_variant check to check max_version.
Change-Id: I946e8903d745b0bf0c48701d16aa866464233ab7
Reviewed-on: https://boringssl-review.googlesource.com/24044
Commit-Queue: Steven Valdez <svaldez@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2017-12-12 17:20:07 +00:00
David Benjamin
650d8c393e Implement TLS 1.3 early exporters.
Bug: 222
Change-Id: I33ee56358a62afcd9c3921026d55efcc543a5c11
Reviewed-on: https://boringssl-review.googlesource.com/23945
Reviewed-by: Steven Valdez <svaldez@google.com>
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2017-12-11 21:33:26 +00:00
David Benjamin
8f53fc0a94 Fix fuzzer mode suppressions.
Change-Id: Ic79f189c0bb2abf5d87f59ee410cafb4fb116ab8
Reviewed-on: https://boringssl-review.googlesource.com/24004
Commit-Queue: David Benjamin <davidben@google.com>
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2017-12-11 20:12:11 +00:00
David Benjamin
21baf6421a Fix CustomExtensions-Server-EarlyDataAccepted test.
It's misnamed but, more importantly, doesn't do anything because the
test client isn't sending early data to begin with. We really need to
make these tests less error-prone to write. With this fix, the test
actually notices if we remove the server-side 0-RTT check.

Also remove MaxEarlyDataSize from the other server tests which
erroneously set it. Any test with sets that was likely copy-and-pasted
incorrectly.

Change-Id: Idc24bc1590e0316946022341185285418ab8c77b
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2017-12-11 15:54:15 +00:00
David Benjamin
494e4d0e89 Add an option for False Start without ALPN.
We can probably do this globally at this point since the cipher
requirements are much more restrict than they were in the beginning.
(Firefox, in particular, has done so far a while.) For now add a flag
since some consumer wanted this.

I'll see about connecting it to a Chrome field trial after our breakage
budget is no longer reserved for TLS 1.3.

Change-Id: Ib61dd5aae2dfd48b56e79873a7f3061a7631a5f8
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2017-12-04 21:20:46 +00:00
Steven Valdez
9986f6b045 Fix renegotiation with TLS 1.3 draft 22.
Change-Id: I87edf7e1fee07da4bc93cc7ab524b79991a4206e
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2017-12-01 17:56:55 +00:00
David Benjamin
fb535892e5 runner: Rewrite some more parsers.
These were easy.

Change-Id: I5fc764b83d641b08b58ccbff36dbd28cb66efed0
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2017-11-30 17:05:06 +00:00
Steven Valdez
c5c31abe2b Enforce compression_method in TLS 1.3 draft 22.
Change-Id: Ic99a949258e62cad168c2c39507ca63100a8ffe5
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2017-11-29 22:19:04 +00:00
Steven Valdez
e6cefe41bb Update PR 1091 CL to use draft22 version.
Change-Id: Ifa811262fbca22222656da530f97daac3dcd6a5b
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2017-11-29 16:11:24 +00:00
David Benjamin
a7673facf8 runner: Parse CertificateRequest with byteReader.
Bug: 212
Change-Id: I0ad4df330360789b16fc9db70565abdb3ae42a8f
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2017-11-28 18:37:39 +00:00
David Benjamin
28b267b357 runner: Parse Certificate with byteReader.
Bug: 212
Change-Id: Ife51516ef0642730e601e146028b16ded99ab7ba
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2017-11-28 17:42:49 +00:00
David Benjamin
bd911af514 runner: Parse SH/HRR/EE with byteReader.
Bug: 212
Change-Id: I454db0bfd59bac3729338c6f8d9e51efde0735eb
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2017-11-28 17:03:39 +00:00
David Benjamin
7ce2378750 runner: Send the right alert for handshake message parsing failures.
This throws me off every time.

Change-Id: I19848927fe821f7656dea0343361d70dae4007c9
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2017-11-28 16:55:49 +00:00
David Benjamin
be8c8b4b1d runner: Add a byteReader type and convert ClientHello parsing.
Bug: 212
Change-Id: Iecbd8fddef1b55a438947ad60780e08cb4260c48
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2017-11-27 21:18:40 +00:00
David Benjamin
66801feb17 Support high tag numbers in CBS/CBB.
Android's attestion format uses some ludicrously large tag numbers:
https://developer.android.com/training/articles/security-key-attestation.html#certificate_schema

Add support for these in CBS/CBB. The public API does not change for
callers who were using the CBS_ASN1_* constants, but it is no longer the
case that tag representations match their DER encodings for small tag
numbers.

Chromium needs https://chromium-review.googlesource.com/#/c/chromium/src/+/783254,
but otherwise I don't expect this to break things.

Bug: 214
Change-Id: I9b5dc27ae3ea020e9edaabec4d665fd73da7d31e
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2017-11-22 22:34:05 +00:00
David Benjamin
855d5046c7 Unwind legacy SSL_PRIVATE_KEY_METHOD hooks.
After much procrastinating, we finally moved Chromium to the new stuff.
We can now delete this. This is a breaking change for
SSL_PRIVATE_KEY_METHOD consumers, but it should be trivial (remove some
unused fields in the struct). I've bumped BORINGSSL_API_VERSION to ease
any multi-sided changes that may be needed.

Change-Id: I9fe562590ad938bcb4fcf9af0fadeff1d48745fb
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2017-11-21 17:48:09 +00:00
David Benjamin
8793942c5c Fix fuzzer mode suppressions.
Change-Id: I82f92019dccfaf927f7180a5af53c9ffae111861
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2017-11-20 18:44:18 +00:00
David Benjamin
e7c95d91f8 Run TLS 1.3 tests at all variants and fix bugs.
We were only running a random subset of TLS 1.3 tests with variants and
let a lot of bugs through as a result.

- HelloRetryRequest-EmptyCookie wasn't actually testing what we were
  trying to test.

- The second HelloRetryRequest detection needs tweaks in draft-22.

- The empty HelloRetryRequest logic can't be based on non-empty
  extensions in draft-22.

- We weren't sending ChangeCipherSpec correctly in HRR or testing it
  right.

- Rework how runner reads ChangeCipherSpec by setting a flag which
  affects the next readRecord. This cuts down a lot of cases and works
  correctly if the client didn't send early data. (In that case, we
  don't flush CCS until EndOfEarlyData and runner deadlocks waiting for
  the ChangeCipherSpec to arrive.)

Change-Id: I559c96ea3a8b350067e391941231713c6edb2f78
Reviewed-on: https://boringssl-review.googlesource.com/23125
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2017-11-20 18:19:18 +00:00
David Benjamin
3bba5ccf35 Add EndOfEarlyData to per-message tests.
Change-Id: I9da9734625d1d9d2c783830d8b4aecd34f51acc6
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2017-11-20 18:10:38 +00:00
David Benjamin
ac4d5346ad Add missing error path.
Error paths must always have OPENSSL_PUT_ERROR.

Change-Id: I0ed8c8288484a4ea69ec58317064ad3cd90ddd64
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2017-11-20 16:59:08 +00:00
David Benjamin
e6f30e4ce1 Add tests for post-handshake CCS in draft "22".
The current PR says the sender only skips it during the handshake. Add a
test that we got this right.

Change-Id: Ib27eb942f11d955b8a24e32321efe474037f5254
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2017-11-14 05:40:38 +00:00
David Benjamin
13761f2833 Fix TLSInnerPlaintext limit.
See https://github.com/tlswg/tls13-spec/pull/1083. We misread the
original text spec, but it turns out the original spec text required
senders have version-specific maximum send fragments. The PR fixes this
off-by-one issue. Align with the new spec text uniformly.

This is a wire format change for our existing drafts *only if* records
have padding. We don't currently send padding, so this is fine. Unpadded
records continue to be capped at 2^14 bytes of plaintext (or 2^14+1
bytes of TLSInnerPlaintext structure).

Change-Id: I01017cfd13162504bb163dd59afd74aff0896cc4
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2017-11-14 05:38:48 +00:00
Steven Valdez
ba8f1864c1 Disable 'draft 22' by default.
Change-Id: I1a0f264cbfa0eb5d4adac96d0fc24fa342f2b6a3
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2017-11-12 03:26:05 +00:00
Steven Valdez
964b2377d0 Implement PR 1091 (TLS 1.3 draft '22').
This introduces a wire change to Experiment2/Experiment3 over 0RTT, however
as there is never going to be a 0RTT deployment with Experiment2/Experiment3,
this is valid.

Change-Id: Id541d195cbc4bbb3df7680ae2a02b53bb8ae3eab
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2017-11-11 06:24:55 +00:00
David Benjamin
fdd5fed036 Also print name for SSL_SIGN_RSA_PKCS1_MD5_SHA1.
Missed one.

Change-Id: I61394db2dded0741cffa977071be998e3f4e4b50
Reviewed-on: https://boringssl-review.googlesource.com/22645
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2017-11-06 17:27:31 +00:00
David Benjamin
6cc352e216 Add helper functions for SSL_SIGN_*.
We end up writing these switch cases everywhere. Let consumers decompose
these a bit. The original thought was folks should write switch-cases so
they handle everything they support, but that's a pain. As long as
algorithm preferences are always configured, we can still add new
dimensions because folks won't be asked to sign algorithms that depend
on dimensions they don't understand.

Change-Id: I3dd7f067f2c55212f0201876546bc70fee032bcf
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2017-11-03 16:05:11 +00:00
David Benjamin
6dda166d21 Support additional curve names.
Node's default settings spell P-256 as prime256v1. This comes from
OpenSSL additionally allowing the long and short names of each curve's
NID. This works out to one additional name per curve for the ones we
support. To avoid depending on the giant OID table, this replicates the
names in libssl.

Change-Id: I456a2db6939eb6745e5a9d2f12cf6886e6265b9f
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2017-11-03 01:32:49 +00:00
Steven Valdez
cd8470f7fa Adding support for draft 21 as a TLS 1.3 variant.
Change-Id: I46686aea9b68105cfe70a11db0e88052781e179c
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2017-11-01 21:32:36 +00:00
David Benjamin
cfc120eb22 Remove RC4 remnants in runner.
RC4 is dead and gone. This trims away the suiteNoDTLS flag.

Change-Id: I1ddc5d0811ad8cfb073e6e3c73100240bc649615
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2017-11-01 16:45:36 +00:00
David Benjamin
3b903f252a Move the SSL_eNULL special-case into the matching function.
This avoids needing to keep track of which rules do and don't need it.

Change-Id: Id086b0622305f7f4acd3892f5d24d8e0c970febb
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2017-11-01 16:45:06 +00:00
David Benjamin
5be3a74c49 Remove supports_cipher hook.
RC4 is gone. The only remaining exception was the dumb SSL_eNULL cipher,
which works fine in DTLS. It doesn't seem worth the trouble to retain
this special-case.

Change-Id: I31023b71192808e4d21e82109255dc4d6d381df8
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2017-11-01 16:44:46 +00:00
David Benjamin
f1db1a398d Another scoper conversion.
Change-Id: I2cc4b76d6368e8962aa601255e1d92e00614c9ec
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2017-11-01 16:32:40 +00:00
David Benjamin
2637f3c431 Even more fun with Span.
Change-Id: If9f9fdc209b97f955b1ef3dea052393412865e59
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2017-11-01 16:28:56 +00:00
David Benjamin
ba94746eb2 Remove temporary logging.
Bug: 199
Change-Id: Ic8eb3e7901b89e5a57c959c650ea316e2eeeb45a
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2017-10-30 20:47:16 +00:00
David Benjamin
ed84291188 Revert "Pack encrypted handshake messages together."
This reverts commit 75d43b5785. Chatting
with EKR, there is some reason to believe that doing this might cause
more middlebox issues. Since we're still in the middle of working
towards viable deployment in the first place, revert this.

We can experiment with this later. I should have arranged for this to be
controlled more carefully anyway.

Change-Id: I0c8bf578f9d7364e913894e1bf3c2b8123dfd770
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2017-10-27 14:36:37 +00:00
David Benjamin
b26ab5c7bf Clear remaining BORINGSSL_ANDROID_SYSTEM ifdefs.
Both of these changes have stuck in Chrome for quite a while now. Let's
clear them.

Change-Id: I13094451be2584ecaaf6b60eedefb7212b7bcde2
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2017-10-27 14:04:07 +00:00
David Benjamin
acf2f34df5 Remove unused constant.
We never implemented psk_ke, so there's no need to define the constant.

Change-Id: I6e52596e1a2cf0b3db5e7cd96db6836f4290bf0b
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2017-10-26 14:42:35 +00:00
David Benjamin
883b5461d5 runner: Check c.hand before changing ciphers.
This doesn't matter in so far as runner is not a real TLS
implementation, but it should enforce what there is to enforce just to
keep BoringSSL honest.

Bug: 80
Change-Id: I68940c33712d34a2437dc4dee31342e7f0f57c23
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2017-10-25 03:45:26 +00:00
David Benjamin
75d43b5785 Pack encrypted handshake messages together.
This does not affect TLS 1.2 (beyond Channel ID or NPN) but, in TLS 1.3,
we send several encrypted handshake messages in a row. For the server,
this means 66 wasted bytes in TLS 1.3. Since OpenSSL has otherwise used
one record per message since the beginning and unencrypted overhead is
less interesting, leave that behavior as-is for the time being. (This
isn't the most pressing use of the breakage budget.) But TLS 1.3 is new,
so get this tight from the start.

Change-Id: I64dbd590a62469d296e1f10673c14bcd0c62919a
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2017-10-25 03:38:56 +00:00
David Benjamin
dd6c2e880f Check early ALPN before offering 0-RTT.
We enforce that servers don't send bogus ALPN values, so consumers may
assume that SSL_get0_alpn_selected won't have anything terribly weird.
To maintain that invariant in the face of folks whose ALPN preferences
change (consider a persisted session cache), we should decline to offer
0-RTT if early_alpn would have been rejected by the check anyway.

Change-Id: Ic3a9ba4041d5d4618742eb05e27033525d96ade1
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2017-10-25 03:31:56 +00:00
David Benjamin
800046fecf Give DTLS1_STATE a destructor.
Change-Id: I3fb797bad91caf7d2aff09313734edfb58fb9f26
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2017-10-25 03:23:26 +00:00
David Benjamin
049fdfc7e0 Give hm_fragment and DTLS_OUTGOING_MESSAGE destructors.
This is in preparation for giving DTLS_STATE one.

Change-Id: I3dfeeaad2d20c547d8e65d739bd0ad5bc1acf74a
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2017-10-24 19:49:25 +00:00
David Benjamin
71ea6b127d Clear the last of ssl->s3->tmp.
new_*_len can just be computed rather than maintained as state.

Change-Id: If097ee9e68d8791fcfeb69052151faf0134c7c52
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2017-10-24 19:35:35 +00:00
David Benjamin
32ce0ac0d8 Move init_buf and rwstate into SSL3_STATE.
This finally clears most of the SSL_clear special-cases.

Change-Id: I00fc240ccbf13f4290322845f585ca6f5786ad80
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2017-10-24 18:55:05 +00:00
David Benjamin
8e7bbbab15 Use more scopers.
Change-Id: I34dd0a57efd5435fcdc59a3c7b1ce806bc0cbb3e
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2017-10-24 17:50:05 +00:00
David Benjamin
941725789b Give SSL3_STATE a constructor and destructor.
Change-Id: I326bbc234cecb01741c177884ecabbc53367463d
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2017-10-24 17:43:55 +00:00
David Benjamin
ea712e317f Make SSL3_BUFFER a proper C++ class.
As with SSLTranscript before, we temporarily need some nastiness in
SSL3_STATE, but this is in preparation of giving SSL3_STATE a
constructor and destructor.

Change-Id: Ifc0ce34fdcd8691d521d8ea03ff5e83dad43b4a3
Reviewed-on: https://boringssl-review.googlesource.com/21944
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2017-10-24 17:32:45 +00:00
David Benjamin
f6632dae5f Make all read errors idempotent.
Now that we've gotten everything, test this by just making bssl_shim run
all errors twice. The manual tests added to ssl_test.cc may now be
removed.

Bug: 206
Change-Id: Iefa0eae83ba59b476e6b6c6f0f921d5d1b72cbfb
Reviewed-on: https://boringssl-review.googlesource.com/21886
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2017-10-17 21:28:51 +00:00
David Benjamin
a031b61230 Replace open_close_notify with open_app_data.
While a fairly small hook, open_close_notify is pretty weird. It
processes things at the record level and not above. Notably, this will
break if it skips past a TLS 1.3 KeyUpdate.

Instead, it can share the core part of SSL_read/SSL_peek, with slight
tweaks to post-handshake processing. Note this does require some tweaks
to that code. Notably, to retain the current semantics that SSL_shutdown
does not call funny callbacks, we suppress tickets.

Change-Id: Ia0cbd0b9f4527f1b091dd2083a5d8c7efb2bac65
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2017-10-17 21:19:31 +00:00
David Benjamin
e8d0746b88 Prevent writing when write_shutdown is set.
Ideally we'd put this deep in the record layer, but sending alerts
currently awkwardly sets the field early, so we can't quite lock it out
this deep down.

This is mostly a sanity-check, but a later CL will fix SSL_shutdown's
post-handshake message processing, so this will help catch errors there.

Change-Id: I78e627c19547dbcdc85fb168795240d692baf031
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2017-10-17 20:18:21 +00:00
David Benjamin
d9229f9802 Lift BIO above SSL_PROTOCOL_METHOD.
This gets us closer to exposing BIO-free APIs. The next step is probably
to make the experimental bssl::OpenRecord function call a split out core
of ssl_read_impl.

Change-Id: I4acebb43f708df8c52eb4e328da8ae3551362fb9
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2017-10-17 19:53:52 +00:00
David Benjamin
33febf6048 Don't call ssl3_read_message from ssl3_read_app_data.
With this change, it should now always be the case that rr->length is
zero on entry to ssl3_read_message. This will let us detach everything
but application data from rr. This pushes some init_buf invariants down
into tls_open_record so we don't need to maintain them everywhere.

Change-Id: I206747434e0a9603eea7d19664734fd16fa2de8e
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2017-10-17 17:54:01 +00:00
David Benjamin
97250f4d64 Switch a bunch of things from int to bool.
Change-Id: I419c3a1459425fcd016c130d9699c5d89e66713c
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2017-10-17 17:06:51 +00:00
David Benjamin
31aad2dc2c Make low-level record errors idempotent.
Enough were to make record processing idempotent (we either consume a
record or we don't), but some errors would cause us to keep processing
records when we should get stuck.

This leaves errors in the layer between the record bits and the
handshake. I'm hoping that will be easier to resolve once they do not
depend on BIO, at which point the checks added in this CL may move
around.

Bug: 206
Change-Id: I6b177079388820335e25947c5bd736451780ab8f
Reviewed-on: https://boringssl-review.googlesource.com/21366
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2017-10-17 16:05:41 +00:00
David Benjamin
f8de2af7e3 Push read_shutdown logic down a layer.
We'll probably want to either move or add additional checks later, but
meanwhile this gets more code on the BIO-free side of the divide.

Change-Id: I3e2b570cdf1d70a262d952c20fd2d76ff4f70dd0
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2017-10-17 15:39:51 +00:00
David Benjamin
a05d427b41 Align dtls_open_record and tls_open_record more closely.
Ultimately the ssl_buffer_* code will be above SSL_PROTOCOL_METHOD, so
having the processing be analogous is simpler. This also means that DTLS
can surface errors out of dtls_open_record without the caller reading an
extra record.

Bug: 206
Change-Id: Ic1cb3a884763c8e875e1129b1cda226f72bc95b7
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2017-10-17 15:19:01 +00:00
David Benjamin
3b777adb61 Remove remnants of blocking DTLS timeouts.
We only support non-blocking BIOs for DTLS as of
https://boringssl-review.googlesource.com/13945. This logic is a remnant
of that. It should not be necessary. All users of DTLSv1_get_timeout
call DTLSv1_handle_timeout. This gets it out of the way for
dtls_open_record calls which don't use dtls1_get_record.

We can restore it elsewhere if necessary, but I don't think we need it.

Change-Id: Idb737868358e4b59ad3cb2c994c7084ffcdb3709
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2017-10-17 15:02:21 +00:00
David Benjamin
40e94701dc Always process handshake records in full.
This removes the last place where non-app-data hooks leave anything
uncomsumed in rrec. (There is still a place where non-app-data hooks see
a non-empty rrec an entrance. read_app_data calls into read_handshake.
That'll be fixed in a later patch in this series.)

This should not change behavior, though some error codes may change due
to some processing happening in a slightly different order.

Since we do this in a few places, this adds a BUF_MEM_append with tests.

Change-Id: I9fe1fc0103e47f90e3c9f4acfe638927aecdeff6
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2017-10-17 14:53:11 +00:00
Steven Valdez
619c8cec83 Fix uninitialized warning.
Bug: 207
Change-Id: I57a7f4b0783132965a22ed7ab64f0b839c62c73f
Reviewed-on: https://boringssl-review.googlesource.com/21964
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2017-10-16 19:09:02 +00:00
David Benjamin
e1068b76bd Test RSA premaster unpad better.
RSABadValueTooLong should have the true one as a suffix, not a prefix,
so that the version check still works. Also do the padding manually to
catch a few other bad padding cases. This is sufficient coverage so that
disabling any one comparison in the padding check flags some failure.

Change-Id: Ibcad284e5ecee3e995f43101c09e4cf7694391e9
Reviewed-on: https://boringssl-review.googlesource.com/21904
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-10-13 18:22:58 +00:00
David Benjamin
11ac519d79 Test DTLS record/packet packing more aggressively.
Application records may be packed with other application data records or
with handshake records. We also were never testing CCS and handshake
being packed together. Implement this by moving the packing logic to the
bottom of BoGo's DTLS record layer.

Change-Id: Iabc14ec4ce7b99ed1f923ce9164077efe948c7a0
Reviewed-on: https://boringssl-review.googlesource.com/21844
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2017-10-13 17:32:55 +00:00
David Benjamin
fdb7a3580f Add a test for SSL_pending.
To make sure I don't break it later on.

Change-Id: I0a326800593cd3196efaf2ec9f4042935ecf8eb8
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2017-10-13 15:43:32 +00:00
David Benjamin
75a1f23684 Have a bit more fun with Span.
Change-Id: Iba909603a72ec0d149d9898423c114304a5011fa
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2017-10-12 19:01:34 +00:00
David Benjamin
00f48c8273 Rename and move a few more ssl3_ functions around.
I think that's the last of the ssl3_ prefix being used for common
functions.

Change-Id: Id83e6f2065c3765931250bd074f6ebf1fc251696
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2017-10-12 16:25:54 +00:00
David Benjamin
d1e3ce1fb0 Rename ssl3_send_alert and ssl3_protocol_version.
These are common between TLS and DTLS so should not have the ssl3_
prefix. (TLS-only stuff should really have a tls_ prefix, but we still
have a lot of that one.)

This also fixes a stray reference to ssl3_send_client_key_exchange..

Change-Id: Ia05b360aa090ab3b5f075d5f80f133cbfe0520d4
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2017-10-12 16:24:35 +00:00
David Benjamin
4e840357fd Fully hide LHASH_OF(SSL_SESSION).
It's no longer needed in the public header at all, now that we've hidden
the SSL_CTX struct.

Change-Id: I2fc6ddbeb52f000487627b433b9cdd7a4cde37a8
Reviewed-on: https://boringssl-review.googlesource.com/21684
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-10-12 16:22:59 +00:00
Adam Langley
771df4416a Initialise a variable to zero for GCC 7.2.0.
GCC 7.2.0 (in Release builds) can't figure out that |type| is always
set:

../ssl/tls_record.cc: In function ‘bssl::OpenRecordResult bssl::OpenRecord(SSL*, bssl::Span<unsigned char>*, size_t*, uint8_t*, bssl::Span<unsigned char>)’:
../ssl/tls_record.cc:595:44: error: ‘type’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
       if (type != SSL3_RT_APPLICATION_DATA && type != SSL3_RT_ALERT) {
cc1plus: all warnings being treated as errors

Change-Id: I1ca9683a18d89097288018f48b50991bce185da8
Reviewed-on: https://boringssl-review.googlesource.com/21724
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2017-10-12 01:13:21 +00:00
David Benjamin
666d16e262 Go through SSL_PROTOCOL_METHOD in the handshake.
The handshake should be generic between TLS and DTLS.

Change-Id: I6feb2f013dd5d771f206750653ab9d117d7ea716
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2017-10-11 22:52:45 +00:00
David Benjamin
31640931e6 Switch all the extension callbacks to bools.
Change-Id: I4d24f7666aa862f2aaac91b6325a452ce2f219eb
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2017-10-11 20:27:32 +00:00
David Benjamin
7e58c5ef20 Switch more things to bools.
Change-Id: I11e3cf9be7757fcf1dd50ca8d6d449aa83edf71f
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2017-10-11 20:22:43 +00:00
David Benjamin
664e99a648 Make SSL_CTX opaque.
This frees us up to make SSL_CTX a C++ type and avoids a lot of
protrusions of otherwise private types into the global namespace.

Bug: 6
Change-Id: I8a0624a53a4d26ac4a483fa270c39ecdd07459ee
Reviewed-on: https://boringssl-review.googlesource.com/21584
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2017-10-11 16:46:20 +00:00
Steven Valdez
be165a2e70 Fix missing TicketMaxEarlyDataInfo in first session ticket.
Change-Id: Ib24208e0ebdb1787c629ee29bd0115332ac36e73
Reviewed-on: https://boringssl-review.googlesource.com/21484
Reviewed-by: David Benjamin <davidben@google.com>
2017-10-10 21:03:10 +00:00
Bruce Dawson
e05b72c257 Use constexpr to avoid kNamedGroups initializer
On some Chrome builds on Windows (including the official builds that we
ship) there are dynamic initializers for kNamedGroups in chrome.dll and
chrome_child.dll. Tagging this array with constexpr is guaranteed to
avoid this.

Bug: chromium:341941
Change-Id: I0e4ea0665b8ed9640b76b709dd300416be49e59e
Reviewed-on: https://boringssl-review.googlesource.com/21564
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2017-10-10 21:01:59 +00:00
David Benjamin
03a4b96c12 Move has_message logic to ssl3_get_message.
This doesn't particularly matter but is more consistent with DTLS and
avoids the callback being potentially called from two places.

Change-Id: I2f57ca94d2d532c56f37a0bac7000c15b3b4b520
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2017-10-10 15:48:57 +00:00
David Benjamin
23c25d5b3a Rename some things for consistency.
We usually use read/write rather than recv/send to describe the two
sides.

Change-Id: Ie3ac8c52c59ea9a5143f56b894f58cecd351dc7d
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2017-10-10 15:39:07 +00:00
David Benjamin
a84b6f26a9 Fix comment.
Clients need not accept CertificateRequest. We don't, have no intention
to, and post-handshake auth now requires an extension.

Change-Id: I2160c89e4a6988a7d743052b588d8aa2598ffabf
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2017-10-10 15:33:07 +00:00
David Benjamin
c64d123933 Push Span down a layer.
Change-Id: I893292b140d033a5aed7e08f928a6c32996bb983
Reviewed-on: https://boringssl-review.googlesource.com/21287
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2017-10-10 14:27:58 +00:00
David Benjamin
751d1a1c22 Fold ssl_open_record_fatal_alert into ssl_open_record_error.
The only difference is whether there's an alert to send back, but we'll
need to allow an "error without alert" in several cases anyway:

1. If the server sees an HTTP request or garbage instead of a
   ClientHello, it shouldn't send an alert.

2. Resurfaced errors.

Just make zero signal no alert for now. Later on, I'm thinking we might
just want to put the alert into the outgoing buffer and make it further
uniform.

This also gives us only one error state to keep track of rather than
two.

Bug: 206
Change-Id: Ia821d9f89abd2ca6010e8851220d4e070bc42fa1
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2017-10-10 03:07:57 +00:00
David Benjamin
e52f4c4642 Replay the entire error queue on ssl_hs_error.
This is analogous to the Go stack's handshakeErr field. Since it's quite
common for callers to run two I/O operations in parallel[*] like
SSL_read and SSL_write (or SSL_read and SSL_do_handshake for client
0-RTT). Accordingly, the new handshake state machine jams itself up on
handshake error, but to fully work with such callers, we should also
replay the error state.

This doesn't yet catch all cases (there are some parts of the read flow
which need to be fixed). Those will be resolved in later changes.

[*] Not actually in parallel, of course, but logically in parallel on a
non-blocking socket.

Bug: 206
Change-Id: I5a4d37a258b9e3fc555b732938b0528b839650f8
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2017-10-09 21:53:33 +00:00
Adam Langley
2e9bb4eb96 Fix comment about EarlyCCS.
Thanks to Dimitar Vlahovski for pointing this out.

Change-Id: I417f52ec6c3e950bdab6079962b29976fb75c029
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2017-10-06 22:46:57 +00:00
David Benjamin
861f28a624 Clear one more timeout when using gdb.
https://boringssl-review.googlesource.com/18605 got the other ones.

Change-Id: If00487a4dd8508496a31a0a565c965559e12879c
Reviewed-on: https://boringssl-review.googlesource.com/21264
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2017-10-06 17:23:07 +00:00
David Benjamin
6c1f2b77de Test that we tolerate server-sent supported groups.
I should have added this test in
https://boringssl-review.googlesource.com/10320. This is necessary in
TLS 1.3 and spec compliance and TLS 1.2 to tolerate some broken servers.

Change-Id: Ibb52eaa1e370062f83e84856ef7f1c2c79d6a5d3
Reviewed-on: https://boringssl-review.googlesource.com/21124
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2017-10-05 15:14:29 +00:00
David Benjamin
1c58471cc9 Add TLS 1.3 EXPORTER_SECRET to SSLKEYLOGFILE.
Per discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1287711.
Otherwise this feature won't work for QUIC.

Change-Id: Ia799bfd1e29c01161c4298fb3124c96f62ada9c5
Reviewed-on: https://boringssl-review.googlesource.com/21104
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2017-10-04 15:24:58 +00:00
David Benjamin
a4bafd33b3 Add SSL_SESSION_{get,set}_protocol_version.
SSL_SESSION_set_protocol_version is useful when unit-testing a session
cache.

Change-Id: I4b04e31d61ce40739323248e3e5fdae498c4645e
Reviewed-on: https://boringssl-review.googlesource.com/21044
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2017-10-03 19:52:34 +00:00
Steven Valdez
4c7f5fa023 Remove old TLS 1.3 variants (NoSessionID and RecordType).
Change-Id: I2428321218d0b5dce242e3843d39ca269e1eb686
Reviewed-on: https://boringssl-review.googlesource.com/20984
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2017-10-03 18:12:23 +00:00
David Benjamin
f496249405 Switch int to bool in ssl_cipher.cc.
Change-Id: I815f9fa77e08f72b0130ea9ef0dda751bf2ed7a6
Reviewed-on: https://boringssl-review.googlesource.com/20826
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
2017-10-02 20:41:20 +00:00
David Benjamin
ed9aed1ac6 int to bool in ssl_versions.cc.
Bug: 132
Change-Id: I1d6cd1dd7470a3f64ec91b954042ed3f8c6b561e
Reviewed-on: https://boringssl-review.googlesource.com/20825
Commit-Queue: David Benjamin <davidben@google.com>
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2017-10-02 20:41:08 +00:00
David Benjamin
b949355132 Add bssl::Span<T>::subspan and use it.
This roughly aligns with absl::Span<T>::subspan.

Bug: 132
Change-Id: Iaf29418c1b10e2d357763dec90b6cb1371b86c3b
Reviewed-on: https://boringssl-review.googlesource.com/20824
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2017-10-02 19:33:28 +00:00
David Benjamin
81f030b106 Switch OPENSSL_VERSION_NUMBER to 1.1.0.
Although we are derived from 1.0.2, we mimic 1.1.0 in some ways around
our FOO_up_ref functions and opaque libssl types. This causes some
difficulties when porting third-party code as any OPENSSL_VERSION_NUMBER
checks for 1.1.0 APIs we have will be wrong.

Moreover, adding accessors without changing OPENSSL_VERSION_NUMBER can
break external projects. It is common to implement a compatibility
version of an accessor under #ifdef as a static function. This then
conflicts with our headers if we, unlike OpenSSL 1.0.2, have this
function.

This change switches OPENSSL_VERSION_NUMBER to 1.1.0 and atomically adds
enough accessors for software with 1.1.0 support already. The hope is
this will unblock hiding SSL_CTX and SSL_SESSION, which will be
especially useful with C++-ficiation. The cost is we will hit some
growing pains as more 1.1.0 consumers enter the ecosystem and we
converge on the right set of APIs to import from upstream.

It does not remove any 1.0.2 APIs, so we will not require that all
projects support 1.1.0. The exception is APIs which changed in 1.1.0 but
did not change the function signature. Those are breaking changes.
Specifically:

- SSL_CTX_sess_set_get_cb is now const-correct.

- X509_get0_signature is now const-correct.

For C++ consumers only, this change temporarily includes an overload
hack for SSL_CTX_sess_set_get_cb that keeps the old callback working.
This is a workaround for Node not yet supporting OpenSSL 1.1.0.

The version number is set at (the as yet unreleased) 1.1.0g to denote
that this change includes https://github.com/openssl/openssl/pull/4384.

Bug: 91
Change-Id: I5eeb27448a6db4c25c244afac37f9604d9608a76
Reviewed-on: https://boringssl-review.googlesource.com/10340
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2017-09-29 04:51:27 +00:00
David Benjamin
737d2dffdf Convert ClientHello tests to GTest.
I was just passing by.

Change-Id: I0212b4a1a3fd2ad24d7157181cd55a92263a3727
Reviewed-on: https://boringssl-review.googlesource.com/20904
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2017-09-28 19:28:47 +00:00
David Benjamin
e9c7b1c8ae Add SSL_SESSION_is_single_use.
Querying versions is a bit of a mess between DTLS and TLS and variants
and friends. Add SSL_SESSION_is_single_use which informs the caller
whether the session should be single-use.

Bug: chromium:631988
Change-Id: I745d8a5dd5dc52008fe99930d81fed7651b92e4e
Reviewed-on: https://boringssl-review.googlesource.com/20844
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2017-09-28 18:38:17 +00:00
David Benjamin
21fa684236 Have fun with lock scopers.
Change-Id: I2697349024769545c2c37173e6ed68640b7d3b78
Reviewed-on: https://boringssl-review.googlesource.com/20805
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2017-09-28 17:49:37 +00:00
David Benjamin
9eaa3bd55d Remove SSL_CTX_sessions and properly lock SSL_CTX_sess_number.
SSL_CTX_sessions is the only think making us expose LHASH as public API
and nothing uses it. Nothing can use it anyway as it's not thread-safe.
I haven't actually removed it yet since SSL_CTX is public, but once the
types are opaque, we could trim the number of symbols ssl.h pulls in
with some work.

Relatedly, fix thread safety of SSL_CTX_sess_number.

Change-Id: I75a6c93509d462cd5ed3ce76c587f0d1e7cd0797
Reviewed-on: https://boringssl-review.googlesource.com/20804
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2017-09-27 21:58:05 +00:00
David Benjamin
73d42e614c Inline ssl_clear_tls13_state.
The function has exactly one caller. Also add some comments.

Change-Id: I1566aed625449c91f25a777f5a4232d236019ed7
Reviewed-on: https://boringssl-review.googlesource.com/20673
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2017-09-27 18:32:34 +00:00
David Benjamin
b1cf48ea41 Store the peer_sigalgs as an Array.
Bug: 132
Change-Id: I710dbd4906bb7a8b971831be0121df5b78e4f9e0
Reviewed-on: https://boringssl-review.googlesource.com/20672
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2017-09-27 18:30:13 +00:00
David Benjamin
879efc3f3b Switch more things to Array.
This adds a CBBFinishArray helper since we need to do that fairly often.

Bug: 132
Change-Id: I7ec0720de0e6ea31caa90c316041bb5f66661cd3
Reviewed-on: https://boringssl-review.googlesource.com/20671
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2017-09-27 18:29:43 +00:00
David Benjamin
08f5c76898 Convert more things to Array.
This adds a CopyFrom companion to Init as a replacement for CBS_stow.

Bug: 132
Change-Id: I4d77291b07552bd2286a09f8ba33655d6d97c853
Reviewed-on: https://boringssl-review.googlesource.com/20670
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2017-09-27 18:02:23 +00:00
David Benjamin
6b3ab72602 Add an implicit CBS to Span<const uint8_t> conversion.
They are exactly the same structure. Doing it in CBS allows us to switch
bssl::Span to absl::Span or a standard std::span in the future.

Bug: 132
Change-Id: Ibc96673c23233d557a1dd4d8768d2659d7a4ca0c
Reviewed-on: https://boringssl-review.googlesource.com/20669
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2017-09-27 18:01:05 +00:00
David Benjamin
cf0ce676d6 Use Span and Array for the curve list.
There seems to be a GCC bug that requires kDefaultGroups having an
explicit cast, but this is still much nicer than void(const uint16_t **,
size_t *) functions.

Bug: 132
Change-Id: Id586d402ca0b8a01370353ff17295e71ee219ff3
Reviewed-on: https://boringssl-review.googlesource.com/20668
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2017-09-27 18:00:05 +00:00
David Benjamin
499742c60f Introduce bssl::Array<T> and use it in SSLKeyShare.
An Array<T> is an owning Span<T>. It's similar to absl::FixedArray<T>
but plays well with OPENSSL_malloc and doesn't implement inlining. With
OPENSSL_cleanse folded into OPENSSL_free, we could go nuts with
UniquePtr<uint8_t>, but having the pointer and length tied together is
nice for other reasons. Notably, Array<T> plays great with Span<T>.

Also switch the other parameter to a Span.

Bug: 132
Change-Id: I4cdcf810cf2838208c8ba9fcc6215c1e369dffb8
Reviewed-on: https://boringssl-review.googlesource.com/20667
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2017-09-27 17:29:23 +00:00
David Benjamin
15868b3bba Revert "Work around a Java client bug when rotating certificates."
This reverts commit aba057a4e0 and
5a79ff5efd.

Change-Id: Ia53a3908491ec99ab25ea1d1bdedf322c2fbe5c4
Reviewed-on: https://boringssl-review.googlesource.com/20744
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2017-09-26 22:27:47 +00:00
David Benjamin
e58f8a6b9a Simplify tls1_change_cipher_spec.
Rather than use those weird bitmasks, just pass an evp_aead_direction_t
and figure it out from there.

Change-Id: Ie52c6404bd0728d7d1ef964a3590d9ba0843c1d6
Reviewed-on: https://boringssl-review.googlesource.com/20666
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2017-09-22 15:18:17 +00:00
David Benjamin
38570b26b8 Clear a goto in d1_srtp.cc.
Bug: 132
Change-Id: I4ba12f1dfbbdc75cb3841dc70f9007bd8695da97
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2017-09-22 15:15:48 +00:00
David Benjamin
b7e5b08a20 Remove some redundant OPENSSL_cleanses.
Anything heap-allocated is automatically cleansed.

Change-Id: I88034251bcba7a3e74c0d1ec887dff5a4c16fa8b
Reviewed-on: https://boringssl-review.googlesource.com/20664
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2017-09-22 13:52:37 +00:00
David Benjamin
b1b76aee3c Add SSL_CIPHER_get_prf_nid.
draft-ietf-quic-tls needs access to the cipher's PRF hash to size its
keys correctly.

Change-Id: Ie4851f990e5e1be724f262f608f7195f7ca837ca
Reviewed-on: https://boringssl-review.googlesource.com/20624
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2017-09-21 21:44:15 +00:00
Vincent Batts
60931e2d8a Explicit fallthrough on switch
Fixes failed compile with [-Werror=implicit-fallthrough=], which is
default on gcc-7.x on distributions like fedora.

Enabling no implicit fallthrough for more than just clang as well to
catch this going forward.

Change-Id: I6cd880dac70ec126bd7812e2d9e5ff804d32cadd
Signed-off-by: Vincent Batts <vbatts@redhat.com>
Reviewed-on: https://boringssl-review.googlesource.com/20564
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Commit-Queue: David Benjamin <davidben@google.com>
2017-09-20 19:58:25 +00:00
Martin Kreichgauer
6dc892fcdf Remove redundant calls to |OPENSSL_cleanse| and |OPENSSL_realloc_clean|.
Change-Id: I5c85c4d072ec157b37ed95b284a26ab32c0c42d9
Reviewed-on: https://boringssl-review.googlesource.com/19824
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2017-09-18 19:16:51 +00:00
David Benjamin
9a4876e193 Remove hmac.h include from ssl.h.
base.h pulls in all the forward declarations, so this isn't needed.  We
should also remove bio.h and buf.h, but cURL seems to depend on those.
Code search suggests this one is okay though.

  case:yes content:\bHMAC content:openssl/ssl.h -content:openssl/hmac.h

Change-Id: Id91686bd134649245855025940bc17f82823c734
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2017-09-15 22:48:43 +00:00
David Benjamin
5a79ff5efd Clarify some comments.
Further testing suggests the behavior is slightly different than I
originally thought.

Change-Id: I3df6b3425dbb551e374159566ca969347d72a306
Reviewed-on: https://boringssl-review.googlesource.com/20284
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2017-09-14 21:15:23 +00:00
David Benjamin
33fc2ba4e2 Opaquify SSL_CIPHER.
Bug: 6
Change-Id: Ieb2a8816b63425dce64e26ac41ded894a6c5e61b
Reviewed-on: https://boringssl-review.googlesource.com/20264
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2017-09-13 20:30:00 +00:00
David Benjamin
683ffbbe57 Fix fuzzer mode suppressions.
Some tests got renamed.

Change-Id: I7ef788c10dc40de244778b9e80ae3a04afee3dd4
Reviewed-on: https://boringssl-review.googlesource.com/20226
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-09-12 19:32:14 +00:00
Steven Valdez
c7d4d21413 Add experiment without client CCS and fix session ID bug.
Change-Id: Id6cf63caf5a00d4d4ca66a5c7530c48c2d9ed91f
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2017-09-12 18:05:50 +00:00
David Benjamin
aba057a4e0 Work around a Java client bug when rotating certificates.
The Java client implementation of the 3SHAKE mitigation incorrectly
rejects initial handshakes when all of the following are true:

1. The ClientHello offered a session.
2. The session was successfully resumed previously.
3. The server declines the session.
4. The server sends a certificate with a different SAN list than in the
   previous session.

(Note the 3SHAKE mitigation is to reject certificates changes on
renegotiation, while Java's logic applies to initial handshakes as
well.)

The end result is long-lived Java clients break on some certificate
rotations. Fingerprint Java clients and decline all offered sessions.
This avoids (2) while still introducing new sessions to clear any
existing problematic sessions.

See also b/65323005.

Change-Id: Ib2b84c69b5ecba285ffb8c4d03de5626838d794e
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2017-09-12 15:56:59 +00:00
Steven Valdez
1682126fd8 Add Experiment 2
Change-Id: If240cbeb133a23331cb6ca59eaacde7733592278
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2017-09-11 16:53:16 +00:00
David Benjamin
a9c96bae8a Remove a DHE remnant from runner.
Change-Id: I98a42572af71e18839a29eb0f7547d17d08f2c22
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2017-09-08 14:48:10 +00:00
David Benjamin
2ff44b183a Add DTLS fuzzers.
Bug: 124
Change-Id: Iff02be9df2806572e6d3f860b448f598f85778c3
Reviewed-on: https://boringssl-review.googlesource.com/20107
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2017-09-07 22:26:50 +00:00
David Benjamin
a196ea15af Share all of fuzz/{client,server}.cc into fuzzer.h.
There's a lot of duplicated code between the two. This is in preparation
for adding two more of these fuzzers, this time for DTLS.

Bug: 124
Change-Id: I8ca2a02d599e2c88e30838d04b7cf07d4221aa76
Reviewed-on: https://boringssl-review.googlesource.com/20106
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2017-09-07 22:14:12 +00:00
David Benjamin
e51fb0fa71 Fix empty fragment handling in DTLS message reassembly.
Found with libFuzzer.

Bug: chromium:763097
Change-Id: I806bcfc714c0629ff7f725e37f4c0045d4ec7ac6
Reviewed-on: https://boringssl-review.googlesource.com/20105
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2017-09-07 22:11:10 +00:00
David Benjamin
d0beda01f9 Properly report SSL_session_reused after a renegotiation.
We forgot to reset that value.

Change-Id: Ic869cb61da332983cc40223cbbdf23b455dd9766
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2017-09-06 20:56:06 +00:00
David Benjamin
3d8f0808e4 Honor SSL_SESS_CACHE_CLIENT in TLS 1.3.
The new_session_cb callback should not be run if SSL_SESS_CACHE_CLIENT
is off.

Change-Id: I1ab320f33688f186b241d95c81775331a5c5b1a1
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2017-09-06 20:31:17 +00:00
David Benjamin
a861460c89 Make SNI per-connection, not per-session.
Right now we report the per-connection value during the handshake and
the per-session value after the handshake. This also trims our tickets
slightly by removing a largely unused field from SSL_SESSION.

Putting it on SSL_HANDSHAKE would be better, but sadly a number of
bindings-type APIs expose it after the handshake.

Change-Id: I6a1383f95da9b1b141b9d6adadc05ee1e458a326
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2017-09-06 20:25:26 +00:00
Martin Kreichgauer
c0e15d1d9d Zero memory in |OPENSSL_free|.
Allocations by |OPENSSL_malloc| are prefixed with their length.
|OPENSSL_free| zeros the allocation before calling free(), eliminating
the need for a separate call to |OPENSSL_cleanse| for sensitive data.

This change will be followed up by the cleanup in
https://boringssl-review.googlesource.com/c/boringssl/+/19824.

Change-Id: Ie272f07e9248d7d78af9aea81dacec0fdb7484c4
Reviewed-on: https://boringssl-review.googlesource.com/19544
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
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2017-09-06 19:22:46 +00:00
Martin Kreichgauer
a23b68f564 ssl/test/runner: Change ecdsa.PublicKey initialization
Change-Id: I4dea223825da4e4ab0bc789e738f470f5fe5d659
Reviewed-on: https://boringssl-review.googlesource.com/20044
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-06 18:19:16 +00:00
David Benjamin
74795b32c6 More miscellaneous bools.
Change-Id: I0960fed68ef39e4523ef9f2ba89ffa92f09c4dce
Reviewed-on: https://boringssl-review.googlesource.com/19945
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2017-09-01 15:07:52 +00:00
David Benjamin
046bc1fbe8 SSL3_STATE ints to bools.
Change-Id: I0f153a3e22f960f2b600919b6bacac76b7a95093
Reviewed-on: https://boringssl-review.googlesource.com/19944
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2017-09-01 15:07:32 +00:00
David Benjamin
4cbb93195f Collapse client Finished states together.
By resolving Channel ID earlier, we can take advantage of
flight-by-flight writes.

Change-Id: I31265bda3390eb1faec976ac13d7a01ba5f6dd5f
Reviewed-on: https://boringssl-review.googlesource.com/19925
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Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-01 15:07:12 +00:00
David Benjamin
fd45ee7da8 Replace bits in SSL_HANDSHAKE with bool.
Change-Id: I23f1449d8652a4aa3a9006e04c86c9430127800e
Reviewed-on: https://boringssl-review.googlesource.com/19924
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Commit-Queue: David Benjamin <davidben@google.com>
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2017-09-01 15:05:52 +00:00
Steven Valdez
d816874c52 Set SSL_in_init to false before new_session_cb.
This fixes a regression in Conscrypt added by
https://boringssl-review.googlesource.com/19144. SSL_get_session
otherwise attempts to return hs->new_session, but that has been released
at this point.

Change-Id: I55b41cbefb65b3ae3cfbfad72f6338bd66db3341
Reviewed-on: https://boringssl-review.googlesource.com/19904
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2017-08-31 15:43:25 +00:00
David Benjamin
6abaa316f0 Remove unnecessary parameter.
Change-Id: Ib6708b9a9f89ab8d548850575762032a36f9ba2f
Reviewed-on: https://boringssl-review.googlesource.com/19884
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-08-31 14:18:26 +00:00
David Benjamin
0a471910b4 Test empty extensions fields are omitted.
For historical reasons, TLS allows ServerHellos (and ClientHellos)
without extensions to omit the extensions fields entirely.
https://github.com/openssl/openssl/pull/4296 reports this is even
necessary for compatibility with extension-less clients. We continue to
do so, but add a test for it anyway.

Change-Id: I63c2e3a5f298674eb21952fca6914dad07d7c245
Reviewed-on: https://boringssl-review.googlesource.com/19864
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-08-31 14:17:36 +00:00
David Benjamin
3536809644 Update style guide for C++.
Change-Id: Ib8c681e221837407d7ae2578699b8a3f3227c1b7
Reviewed-on: https://boringssl-review.googlesource.com/19785
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-08-30 14:34:49 +00:00
David Benjamin
c11ea942b7 Convert comments in ssl.
That's the last of it!

Change-Id: I93d1f5ab7e95b2ad105c34b24297a0bf77625263
Reviewed-on: https://boringssl-review.googlesource.com/19784
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2017-08-29 21:33:32 +00:00
David Benjamin
66d49b4952 Fix SSL_CTX client_CA list locking.
ctx->cached_x509_client_CA needs to be protected under a lock since
SSL_CTX_get_client_CA_list is a logically const operation. The fallback
in SSL_get_client_CA_list was not using this lock.

Change-Id: I2431218492d1a853cc1a59c0678b0b50cd9beab2
Reviewed-on: https://boringssl-review.googlesource.com/19765
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-29 20:44:42 +00:00
David Benjamin
c79ae7aa8b Test SSL_add_client_CA.
That function actually got a little complicated after the CRYPTO_BUFFER
work.

Change-Id: Ib679a9f2bcc2c974fe059af49805b8200e77bd03
Reviewed-on: https://boringssl-review.googlesource.com/19764
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-29 20:36:02 +00:00
David Benjamin
3969fdf860 Test invalid certificates.
The fuzzer should discover this instantly, but it's a sufficiently
important failure case (don't accidentally drop the certificate on the
floor or anything weird like that) that it's probably worth testing.

Change-Id: I684932c2e8a88fcf9b2318bf46980d312c66f6ef
Reviewed-on: https://boringssl-review.googlesource.com/19744
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-08-29 20:27:58 +00:00
Steven Valdez
398085ba04 Simplify states with hs_wait_t returns.
Change-Id: Ie0014bf73625144503b649e84b43ca4b03a4df1f
Reviewed-on: https://boringssl-review.googlesource.com/19704
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2017-08-29 19:53:42 +00:00
David Benjamin
617b818b49 Add a test for SSL_R_NO_CIPHERS_AVAILABLE.
Easy bit of test coverage.

Change-Id: I0362fca926d82869b512e3c40dc53d6dc771dfc8
Reviewed-on: https://boringssl-review.googlesource.com/19724
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-29 19:49:32 +00:00
Steven Valdez
4d71a9a2ca Migrate TLS 1.2 and below state machines to the new style.
Bug: 128
Change-Id: Ief3779b1c43dd34a154a0f1d2f94d0da756bc07a
Reviewed-on: https://boringssl-review.googlesource.com/19144
Reviewed-by: David Benjamin <davidben@google.com>
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2017-08-29 19:23:22 +00:00
David Benjamin
8997b2aa57 Better test cert verification happening only once.
OpenSSL's API has a non-fatal "soft fail" mode (can we get rid of
this?), so we should set the flag even if config->verify_fail is true.

Change-Id: I5a2a3290b9bf45c682f3a629a8b6474b1090fc6e
Reviewed-on: https://boringssl-review.googlesource.com/19684
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-29 16:56:52 +00:00
David Benjamin
e3bb51cb23 Remove deprecated cipher property APIs.
Consumers have been switched to the new ones.

Change-Id: I7a8ec6308775a105a490882c97955daed12a2c2c
Reviewed-on: https://boringssl-review.googlesource.com/19605
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-28 17:47:25 +00:00
David Benjamin
f21650709a Cut down on some redundant flags.
We have fancy -on-initial and -on-resume prefixes now that can apply to
every flag.

Change-Id: I6195a97f663ebc94db320ca35889c213c700a976
Reviewed-on: https://boringssl-review.googlesource.com/19666
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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2017-08-24 16:18:32 +00:00
David Benjamin
5c4271f7cb Don't reauthenticate on renegotiation.
We currently forbid the server certificate from changing on
renegotiation. This means re-verifying the certificate is pointless and
indeed the callback being called again seems to surprise consumers more
than anything else.

Carry over the initial handshake's SCT lists and OCSP responses (don't
enforce they don't change since the server may have, say, picked up new
OCSP responses in the meantime), ignore new ones received on
renegotiation, and don't bother redoing verification.

For our purposes, TLS 1.2 renegotiation is an overcomplicated TLS 1.3
KeyUpdate + post-handshake auth. The server is not allowed to change
identity.

Bug: 126
Change-Id: I0dae85bcf243943b1a5a97fa4f30f100c9e6e41e
Reviewed-on: https://boringssl-review.googlesource.com/19665
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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2017-08-24 16:14:22 +00:00
David Benjamin
5ef40c60f6 Mark renego-established sessions not resumable.
We do not call the new_session callback on renego, but a consumer using
SSL_get_session may still attempt to resume such a session. Leave the
not_resumable flag unset. Also document this renegotiation restriction.

Change-Id: I5361f522700b02edf5272ba5089c0777e5dafb09
Reviewed-on: https://boringssl-review.googlesource.com/19664
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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2017-08-24 16:10:54 +00:00
David Benjamin
302b818d4b Only enable DTLS post-handshake rexmits if we sent the final Finished.
I messed up https://boringssl-review.googlesource.com/8883 and caused
both sides to believe they had sent the final Finished. Use next_message
to detect whether our last flight had a reply.

Change-Id: Ia4d8c8eefa818c9a69acc94d63c9c863293c3cf5
Reviewed-on: https://boringssl-review.googlesource.com/19604
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Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-23 17:13:42 +00:00
David Benjamin
8fc2dc07d8 Put SCTs and OCSP responses in CRYPTO_BUFFERs.
They both can be moderately large. This should hopefully relieve a little
memory pressure from both connections to hosts which serve SCTs and
TLS 1.3's single-use tickets.

Change-Id: I034bbf057fe5a064015a0f554b3ae9ea7797cd4e
Reviewed-on: https://boringssl-review.googlesource.com/19584
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-08-23 15:58:52 +00:00
David Benjamin
f60bcfb3ef Make SSL_state_string_long work for TLS 1.3.
SSL_state_string_long and SSL_state_string are often used for debugging
purposes. The latter's 6-letter codes are absurd, but
SSL_state_string_long is plausible. So we don't lose this when
converging state machines or switching to TLS 1.3, add this to TLS 1.3.

Bug: 128
Change-Id: Iec6529a4d9eddcf08bc9610137b4ccf9ea2681a6
Reviewed-on: https://boringssl-review.googlesource.com/19524
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-08-18 19:38:33 +00:00
Martin Kreichgauer
1a66326f09 Refactor ssl_test ForEachVersion into a GTest fixture.
Change-Id: I2fe57cd500e8408ae15164070afe4b081a5daab0
Reviewed-on: https://boringssl-review.googlesource.com/19404
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-17 23:18:00 +00:00
Martin Kreichgauer
72912d2500 Rotate the default ticket encryption key.
The ticket encryption key is rotated automatically once every 24 hours,
unless a key has been configured manually (i.e. using
|SSL_CTX_set_tlsext_ticket_keys|) or one of the custom ticket encryption
methods is used.

Change-Id: I0dfff28b33e58e96b3bbf7f94dcd6d2642f37aec
Reviewed-on: https://boringssl-review.googlesource.com/18924
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2017-08-16 18:18:54 +00:00
Steven Valdez
f4ecc84644 Prevent both early data and custom extensions from being accepted.
This loosens the earlier restriction to match Channel ID. Both may be
configured and offered, but the server is obligated to select only one
of them. This aligns with the current tokbind + 0-RTT draft where the
combination is signaled by a separate extension.

Bug: 183
Change-Id: I786102a679999705d399f0091f76da236be091c2
Reviewed-on: https://boringssl-review.googlesource.com/19124
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
2017-08-14 20:15:54 +00:00
David Benjamin
348f0d8db9 Add OpenSSL 1.1.0's cipher property functions.
Other projects are starting to use them. Having two APIs for the same
thing is silly, so deprecate all our old ones.

Change-Id: Iaf6b6995bc9e4b624140d5c645000fbf2cb08162
Reviewed-on: https://boringssl-review.googlesource.com/19064
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-11 02:08:58 +00:00
Dimitar Vlahovski
bd70845a80 Add tests for CertificateVerify
CertificateVerify must be sent after a non-empty Certificate msg for:
1) TLS1.2 client
2) TLS1.3 client and server

This CL adds tests for those use cases.

Change-Id: I696e9dd74dcd523c6f8868a4fb9ada28fd67746d
Reviewed-on: https://boringssl-review.googlesource.com/19044
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-08-10 18:44:57 +00:00
David Benjamin
ca9e8f52f1 Tidy up handshake digest logic.
Use SSL_SESSION_get_digest instead of the lower level function where
applicable. Also, remove the failure case (Ivan Maidanski points out in
https://android-review.googlesource.com/c/337852/1/src/ssl/t1_enc.c that
this unreachable codepath is a memory leak) by passing in an SSL_CIPHER
to make it more locally obvious that other values are impossible.

Change-Id: Ie624049d47ab0d24f32b405390d6251c7343d7d6
Reviewed-on: https://boringssl-review.googlesource.com/19024
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-08-09 19:13:15 +00:00
David Benjamin
4a37de076b Test that Finished checks are enforced in 0-RTT.
This is analogous to needing to test that Finished is enforced in False
Start.

Change-Id: I168a72ac51b0f75156aaf6ccc9724ae66ce1e734
Reviewed-on: https://boringssl-review.googlesource.com/18986
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2017-08-09 00:42:34 +00:00
David Benjamin
70dbf042b6 Add SSL_CTX_cipher_in_group.
This allows us to fix another consumer that directly accesses SSL_CTX.
I've made ssl_test use it for test coverage, though we're okay with
ssl_test depending on ssl/internal.h.

Bug: 6
Change-Id: I464325e3faa9f0194bbd357fbb31a996afc0c2e1
Reviewed-on: https://boringssl-review.googlesource.com/18964
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2017-08-09 00:41:56 +00:00
David Benjamin
f6ae9e6c2c Fix more hard-coded TLS 1.3 variant strings.
These should use the shim/runner combined setting.

Change-Id: Iad6abb4e76f6e5accef446696aa4132073eca06a
Reviewed-on: https://boringssl-review.googlesource.com/18984
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-08-09 00:40:45 +00:00
David Benjamin
7934f08b26 Replace init_msg/init_num with a get_message hook.
Rather than init_msg/init_num, there is a get_message function which
either returns success or try again. This function does not advance the
current message (see the previous preparatory change). It only completes
the current one if necessary.

Being idempotent means it may be freely placed at the top of states
which otherwise have other asychronous operations. It also eases
converting the TLS 1.2 state machine. See
https://docs.google.com/a/google.com/document/d/11n7LHsT3GwE34LAJIe3EFs4165TI4UR_3CqiM9LJVpI/edit?usp=sharing
for details.

The read_message hook (later to be replaced by something which doesn't
depend on BIO) intentionally does not finish the handshake, only "makes
progress". A follow-up change will align both TLS and DTLS on consuming
one handshake record and always consuming the entire record (so init_buf
may contain trailing data). In a few places I've gone ahead and
accounted for that case because it was more natural to do so.

This change also removes a couple pointers of redundant state from every
socket.

Bug: 128
Change-Id: I89d8f3622d3b53147d69ee3ac34bb654ed044a71
Reviewed-on: https://boringssl-review.googlesource.com/18806
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-08-08 21:13:04 +00:00
David Benjamin
8f94c31b19 Replace reuse_message with an explicit next_message call.
This means that ssl_get_message (soon to be replaced with a BIO-less
version) is idempotent which avoids the SSL3_ST_SR_KEY_EXCH_B
contortion. It also eases converting the TLS 1.2 state machine. See
https://docs.google.com/a/google.com/document/d/11n7LHsT3GwE34LAJIe3EFs4165TI4UR_3CqiM9LJVpI/edit?usp=sharing
for details.

Bug: 128
Change-Id: Iddd4f951389e8766da07a9de595b552e75f8acf0
Reviewed-on: https://boringssl-review.googlesource.com/18805
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-08-08 21:08:59 +00:00
David Benjamin
ba2d3df759 Add DTLS_with_buffers_method.
WebRTC will need this (probably among other things) to lose crypto/x509
at some point.

Bug: chromium:706445
Change-Id: I988e7300c4d913986b6ebbd1fa4130548dde76a4
Reviewed-on: https://boringssl-review.googlesource.com/18904
Reviewed-by: David Benjamin <davidben@google.com>
2017-08-07 21:01:25 +00:00
David Benjamin
e3dee27f9c Remove the free_buffer parameter to release_current_message.
With on_handshake_complete, this can be managed internally by the TLS
code. The next commit will add a ton more calls to this function.

Change-Id: I91575d3e4bfcccbbe492017ae33c74b8cc1d1340
Reviewed-on: https://boringssl-review.googlesource.com/18865
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-08-07 16:31:06 +00:00
David Benjamin
9bbdf5832d Remove expect and received flight hooks.
Instead, the DTLS driver can detect these states implicitly based on
when we write flights and when the handshake completes. When we flush a
new flight, the peer has enough information to send their reply, so we
start a timer. When we begin assembling a new flight, we must have
received the final message in the peer's flight. (If there are
asynchronous events between, we may stop the timer later, but we may
freely stop the timer anytime before we next try to read something.)

The only place this fails is if we were the last to write a flight,
we'll have a stray timer. Clear it in a handshake completion hook.

Change-Id: I973c592ee5721192949a45c259b93192fa309edb
Reviewed-on: https://boringssl-review.googlesource.com/18864
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-08-07 02:10:03 +00:00
Martin Kreichgauer
26ababbf65 Fix a bug in bssl::OpenRecord.
Checking the record type returned by the |tls_open_record| call only
makes sense if that call was successful.

Change-Id: Ib4bebd2b1198c7def513d9fba3653524c17a6e68
Reviewed-on: https://boringssl-review.googlesource.com/18884
Reviewed-by: Adam Langley <agl@google.com>
2017-08-04 21:36:13 +00:00
David Benjamin
4492a61567 More scopers.
Note the legacy client cert callback case fixes a leak.

Change-Id: I2772167bd03d308676d9e00885c751207002b31e
Reviewed-on: https://boringssl-review.googlesource.com/18824
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-08-03 19:35:09 +00:00
David Benjamin
78b8b99cf7 Fix a bug in and test the message callback.
reuse_message and V2ClientHellos each caused messages to be
double-reported.

Change-Id: I8722a3761ede272408ac9cf8e1b2ce383911cc6f
Reviewed-on: https://boringssl-review.googlesource.com/18764
Reviewed-by: Steven Valdez <svaldez@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-08-03 18:52:47 +00:00
David Benjamin
b0c761eb76 Tolerate early ChangeCipherSpec in DTLS.
This would only come up if the peer didn't pack records together, but
it's free to handle. Notably OpenSSL has a bug where it does not pack
retransmits together.

Change-Id: I0927d768f6b50c62bacdd82bd1c95396ed503cf3
Reviewed-on: https://boringssl-review.googlesource.com/18724
Reviewed-by: David Benjamin <davidben@google.com>
2017-08-01 22:00:52 +00:00
David Benjamin
27e377ec65 Fix miscellaneous clang-tidy warnings.
There are still a ton of them, almost exclusively complaints that
function declaration and definitions have different parameter names. I
just fixed a few randomly.

Change-Id: I1072f3dba8f63372cda92425aa94f4aa9e3911fa
Reviewed-on: https://boringssl-review.googlesource.com/18706
Reviewed-by: Steven Valdez <svaldez@google.com>
2017-08-01 20:39:46 +00:00