Runner needs to implement fuzzer mode as well so we can record
transcripts from it. A bunch of tests were failing:
- C and Go disagreed on what fuzzer mode did to TLS 1.3 padding. So we
fuzz more code, align Go with C. Fuzzer mode TLS 1.3 still pads but
just skips the final AEAD.
- The deterministic RNG should be applied per test, not per exchange. It
turns out, if your RNG is deterministic, one tends to pick the same
session ID over and over which confuses clients. (Resumption is
signaled by echoing the session ID.)
Now the only failing tests are the ones one would expect to fail.
BUG=79
Change-Id: Ica23881a6e726adae71e6767730519214ebcd62a
Reviewed-on: https://boringssl-review.googlesource.com/11126
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
It's easy to forget to check those. Unfortunately, it's also easy to
forget to check inner structures, which is going to be harder to stress,
but do these to start with. In doing, so fix up and unify some
error-handling, and add a missing check when parsing TLS 1.2
CertificateRequest.
This was also inspired by the recent IETF posting.
Change-Id: I27fe3cd3506258389a75d486036388400f0a33ba
Reviewed-on: https://boringssl-review.googlesource.com/10963
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>
Change-Id: I998f69269cdf813da19ccccc208b476f3501c8c4
Reviewed-on: https://boringssl-review.googlesource.com/8991
Reviewed-by: Steven Valdez <svaldez@google.com>
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>
BUG=74
Change-Id: I72d52c1fbc3413e940dddbc0b20c7f22459da693
Reviewed-on: https://boringssl-review.googlesource.com/8981
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>
We already forbid renego/app-data interleave. Forbid it within a
HelloRequest too because that's nonsense. No one would ever send:
[hs:HelloReq-] [app:Hello world] [hs:-uest]
Add tests for this case.
This is in preparation for our more complex TLS 1.3 post-handshake logic
which is going to go through the usual handshake reassembly logic and,
for sanity, will want to enforce this anyway.
BUG=83
Change-Id: I80eb9f3333da3d751f98f25d9469860d1993a97a
Reviewed-on: https://boringssl-review.googlesource.com/9000
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>
Implemented in preparation for testing the C implementation. Tested
against itself.
BUG=74
Change-Id: Iec1b9ad22e09711fa4e67c97cc3eb257585c3ae5
Reviewed-on: https://boringssl-review.googlesource.com/8873
Reviewed-by: Nick Harper <nharper@chromium.org>
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>
We still don't do anything useful with them, but we know not to put them
in the session ticket field.
In doing so, fix a bug in the CorruptTicket option where it would crash
if tickets are exactly 40 byets in length.
BUG=75
Change-Id: Id1039a58ed314a67d0af4f2c7e0617987c2bd6b5
Reviewed-on: https://boringssl-review.googlesource.com/8872
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>
Also parse out the ticket lifetime which was previously ignored.
BUG=75
Change-Id: I6ba92017bd4f1b31da55fd85d2af529fd592de11
Reviewed-on: https://boringssl-review.googlesource.com/8871
Reviewed-by: Nick Harper <nharper@chromium.org>
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>
Ridiculous as it is, the protocol does not forbid packing HelloRequest
and Finished into the same record. Add a test for this case.
Change-Id: I8e1455b261f56169309070bf44d14d40a63eae50
Reviewed-on: https://boringssl-review.googlesource.com/8901
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
[Tests added by davidben.]
Change-Id: I0d54a4f8b8fe91b348ff22658d95340cdb48b089
Reviewed-on: https://boringssl-review.googlesource.com/8850
Reviewed-by: Steven Valdez <svaldez@google.com>
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>
Change-Id: Ibde837040d2332bc8570589ba5be9b32e774bfcf
Reviewed-on: https://boringssl-review.googlesource.com/8811
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>
There is no longer need for the Go code to implement 'fake TLS 1.3'. We
now implement real incomplete TLS 1.3.
Change-Id: I8577100ef8c7c83ca540f37dadd451263f9f37e6
Reviewed-on: https://boringssl-review.googlesource.com/8823
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>
Not only test that we can enforce the message type correctly (this is
currently in protocol-specific code though really should not be), but
also test that each individual message is checked correctly.
Change-Id: I5ed0f4033f011186f020ea46940160c7639f688b
Reviewed-on: https://boringssl-review.googlesource.com/8793
Reviewed-by: Steven Valdez <svaldez@google.com>
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>
Tested against the C code.
Change-Id: I62639e1e46cd4f57625be5d4ff7f6902b318c278
Reviewed-on: https://boringssl-review.googlesource.com/8768
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
[Originally written by nharper and then revised by davidben.]
Most features are missing, but it works for a start. To avoid breaking
the fake TLS 1.3 tests while the C code is still not landed, all the
logic is gated on a global boolean. When the C code gets in, we'll
set it to true and remove this boolean.
Change-Id: I6b3a369890864c26203fc9cda37c8250024ce91b
Reviewed-on: https://boringssl-review.googlesource.com/8601
Reviewed-by: David Benjamin <davidben@google.com>
I'm surprised we'd never tested this. In addition to splitting handshake
records up, one may pack multiple handshakes into a single record, as
they fit. Generalize the DTLS handshake flush hook to do this in TLS as
well.
Change-Id: Ia546d18c7c56ba45e50f489c5b53e1fcd6404f51
Reviewed-on: https://boringssl-review.googlesource.com/8650
Reviewed-by: David Benjamin <davidben@google.com>
TLS 1.3 defines its own EncryptedExtensions message. The existing one is
for Channel ID which probably should not have tried to generalize
itself.
Change-Id: I4f48bece98510eb54e64fbf3df6c2a7332bc0261
Reviewed-on: https://boringssl-review.googlesource.com/8566
Reviewed-by: David Benjamin <davidben@google.com>
TLS 1.3 defines a new SignatureScheme uint16 enum that is backwards
compatible on the wire with TLS1.2's SignatureAndHashAlgorithm. This
change updates the go testing code to use a single signatureAlgorithm
enum (instead of 2 separate signature and hash enums) in preparation for
TLS 1.3. It also unifies all the signing around this new scheme,
effectively backporting the change to TLS 1.2.
For now, it does not distinguish signature algorithms between 1.2 and
1.3 (RSA-PSS instead of RSA-PKCS1, ECDSA must match curve types). When
the C code is ready make a similar change, the Go code will be updated
to match.
[Originally written by nharper, tweaked significantly by davidben.]
Change-Id: If9a315c4670755089ac061e4ec254ef3457a00de
Reviewed-on: https://boringssl-review.googlesource.com/8450
Reviewed-by: David Benjamin <davidben@google.com>
This also adds a missing check to the C half to ensure fake record types are
always correct, to keep implementations honest.
Change-Id: I1d65272e647ffa67018c721d52c639f8ba47d647
Reviewed-on: https://boringssl-review.googlesource.com/8510
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This is the only codepath where ssl->version can get a garbage value, which is
a little concerning. Since, in all these cases, the peer is failing to connect
and speaks so low a version we don't even accept it anymore, there is probably
not much value in letting them distinguish protocol_version from a record-layer
version number mismatch, where enforced (which will give a version-related
error anyway).
Should we get a decode_error or so just before version negotiation, we'd have
this behavior already.
Change-Id: I9b3e5685ab9c9ad32a7b7e3129363cd1d4cdaaf4
Reviewed-on: https://boringssl-review.googlesource.com/8420
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
This implements the cipher suite constraints in "fake TLS 1.3". It also makes
bssl_shim and runner enable it by default so we can start adding MaxVersion:
VersionTLS12 markers to tests as 1.2 vs. 1.3 differences begin to take effect.
Change-Id: If1caf6e43938c8d15b0a0f39f40963b8199dcef5
Reviewed-on: https://boringssl-review.googlesource.com/8340
Reviewed-by: David Benjamin <davidben@google.com>
On Windows, if we write to our socket and then close it, the peer sometimes
doesn't get all the data. This was working for our shimShutsDown tests because
we send close_notify in parallel with the peer and sendAlert(alertCloseNotify)
did not internally return an error.
For convenience, sendAlert returns a local error for non-close_notify alerts.
Suppress that error to avoid the race condition. This makes it behave like the
other shimShutsDown tests.
Change-Id: Iad256e3ea5223285793991e2eba9c7d61f2e3ddf
Reviewed-on: https://boringssl-review.googlesource.com/7980
Reviewed-by: Adam Langley <agl@google.com>
The existing logic gets confused in a number of cases around close_notify vs.
fatal alert. SSL_shutdown, while still pushing to the error queue, will fail to
notice alerts. We also get confused if we try to send a fatal alert when we've
already sent something else.
Change-Id: I9b1d217fbf1ee8a9c59efbebba60165b7de9689e
Reviewed-on: https://boringssl-review.googlesource.com/7952
Reviewed-by: David Benjamin <davidben@google.com>
This is just kind of a silly thing to do. NSS doesn't allow them either. Fatal
alerts would kill the connection regardless and warning alerts are useless. We
previously stopped accepting fragmented alerts but still allowed them doubled
up.
This is in preparation for pulling the shared alert processing code between TLS
and DTLS out of read_bytes into some common place.
Change-Id: Idbef04e39ad135f9601f5686d41f54531981e0cf
Reviewed-on: https://boringssl-review.googlesource.com/7451
Reviewed-by: Emily Stark (Dunn) <estark@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
In TLS, you never skip the Certificate message. It may be empty, but its
presence is determined by CertificateRequest. (This is sensible.)
In SSL 3.0, the client omits the Certificate message. This means you need to
probe and may receive either Certificate or ClientKeyExchange (thankfully,
ClientKeyExchange is not optional, or we'd have to probe at ChangeCipherSpec).
We didn't have test coverage for this, despite some of this logic being a
little subtle asynchronously. Fix this.
Change-Id: I149490ae5506f02fa0136cb41f8fea381637bf45
Reviewed-on: https://boringssl-review.googlesource.com/7419
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
It's useful to make sure our fuzzer mode works. Not all tests pass, but most
do. (Notably the negative tests for everything we've disabled don't work.) We
can also use then use runner to record fuzzer-mode transcripts with the ciphers
correctly nulled.
Change-Id: Ie41230d654970ce6cf612c0a9d3adf01005522c6
Reviewed-on: https://boringssl-review.googlesource.com/7288
Reviewed-by: Adam Langley <agl@google.com>
RFC 5746 forbids a server from downgrading or upgrading
renegotiation_info support. Even with SSL_OP_LEGACY_SERVER_CONNECT set
(the default), we can still enforce a few things.
I do not believe this has practical consequences. The attack variant
where the server half is prefixed does not involve a renegotiation on
the client. The converse where the client sees the renegotiation and
prefix does, but we only support renego for the mid-stream HTTP/1.1
client auth hack, which doesn't do this. (And with triple-handshake,
HTTPS clients should be requiring the certificate be unchanged across
renego which makes this moot.)
Ultimately, an application which makes the mistake of using
renegotiation needs to be aware of what exactly that means and how to
handle connection state changing mid-stream. We make renego opt-in now,
so this is a tenable requirement.
(Also the legacy -> secure direction would have been caught by the
server anyway since we send a non-empty RI extension.)
Change-Id: I915965c342f8a9cf3a4b6b32f0a87a00c3df3559
Reviewed-on: https://boringssl-review.googlesource.com/6559
Reviewed-by: Adam Langley <agl@google.com>
This option causes clients to ignore HelloRequest messages completely.
This can be suitable in cases where a server tries to perform concurrent
application data and handshake flow, e.g. because they are trying to
“renew” symmetric keys.
Change-Id: I2779f7eff30d82163f2c34a625ec91dc34fab548
Reviewed-on: https://boringssl-review.googlesource.com/6431
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Although the DTLS transport layer logic drops failed writes on the floor, it is
actually set up to work correctly. If an SSL_write fails at the transport,
dropping the buffer is fine. Arguably it works better than in TLS because we
don't have the weird "half-committed to data" behavior. Likewise, the handshake
keeps track of how far its gotten and resumes the message at the right point.
This broke when the buffering logic was rewritten because I didn't understand
what the DTLS code was doing. The one thing that doesn't work as one might
expect is non-fatal write errors during rexmit are not recoverable. The next
timeout must fire before we try again.
This code is quite badly sprinkled in here, so add tests to guard it against
future turbulence. Because of the rexmit issues, the tests need some hacks
around calls which may trigger them. It also changes the Go DTLS implementation
from being completely strict about sequence numbers to only requiring they be
monotonic.
The tests also revealed another bug. This one seems to be upstream's fault, not
mine. The logic to reset the handshake hash on the second ClientHello (in the
HelloVerifyRequest case) was a little overenthusiastic and breaks if the
ClientHello took multiple tries to send.
Change-Id: I9b38b93fff7ae62faf8e36c4beaf848850b3f4b9
Reviewed-on: https://boringssl-review.googlesource.com/6417
Reviewed-by: Adam Langley <agl@google.com>
This change makes the runner tests (in ssl/test/runner) act like a
normal Go test rather than being a Go binary. This better aligns with
some internal tools.
Thus, from this point onwards, one has to run the runner tests with `go
test` rather than `go run` or `go build && ./runner`.
This will break the bots.
Change-Id: Idd72c31e8e0c2b7ed9939dacd3b801dbd31710dd
Reviewed-on: https://boringssl-review.googlesource.com/6009
Reviewed-by: Matt Braithwaite <mab@google.com>
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Allow configuring digest preferences for the private key. Some
smartcards have limited support for signing digests, notably Windows
CAPI keys and old Estonian smartcards. Chromium used the supports_digest
hook in SSL_PRIVATE_KEY_METHOD to limit such keys to SHA1. However,
detecting those keys was a heuristic, so some SHA256-capable keys
authenticating to SHA256-only servers regressed in the switch to
BoringSSL. Replace this mechanism with an API to configure digest
preference order. This way heuristically-detected SHA1-only keys may be
configured by Chromium as SHA1-preferring rather than SHA1-requiring.
In doing so, clean up the shared_sigalgs machinery somewhat.
BUG=468076
Change-Id: I996a2df213ae4d8b4062f0ab85b15262ca26f3c6
Reviewed-on: https://boringssl-review.googlesource.com/5755
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: Ifa44fef160fc9d67771eed165f8fc277f28a0222
Reviewed-on: https://boringssl-review.googlesource.com/5840
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
The maximum buffer size computation wasn't quite done right in
ssl_buffer.c, so we were failing with BUFFER_TOO_SMALL for sufficiently
large records. Fix this and, as penance, add 103 tests.
(Test that we can receive maximum-size records in all cipher suites.
Also test SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER while I'm here.)
BUG=526998
Change-Id: I714c16dda2ed13f49d8e6cd1b48adc5a8491f43c
Reviewed-on: https://boringssl-review.googlesource.com/5785
Reviewed-by: Adam Langley <agl@google.com>
Now that it even works at all (type = 0 bug aside), add tests for it.
Test both close_notify being received before and after SSL_shutdown is
called. In the latter case, have the peer send some junk to be ignored
to test that works.
Also test that SSL_shutdown fails on unclean shutdown and that quiet
shutdowns ignore it.
BUG=526437
Change-Id: Iff13b08feb03e82f21ecab0c66d5f85aec256137
Reviewed-on: https://boringssl-review.googlesource.com/5769
Reviewed-by: Adam Langley <agl@google.com>
Our tests shouldn't panic if the program misbehaves.
Change-Id: I113e050222bcf48e5f25883f860dbc1c5c77e77e
Reviewed-on: https://boringssl-review.googlesource.com/5764
Reviewed-by: Adam Langley <agl@google.com>
The old empty record logic discarded the records at a very low-level.
Let the error bubble up to ssl3_read_bytes so the type mismatch logic
may kick in before the empty record is skipped.
Add tests for when the record in question is application data, before
before the handshake and post ChangeCipherSpec.
BUG=521840
Change-Id: I47dff389cda65d6672b9be39d7d89490331063fa
Reviewed-on: https://boringssl-review.googlesource.com/5754
Reviewed-by: Adam Langley <agl@google.com>
The existing tests only went monotonic. Allow an arbitrary mapping
function. Also test by sending more app data. The handshake is fairly
resilient to replayed packets, whereas our test code intentionally
isn't.
Change-Id: I0fb74bbacc260c65ec5f6a1ca8f3cb23b4192855
Reviewed-on: https://boringssl-review.googlesource.com/5556
Reviewed-by: Adam Langley <agl@google.com>
We shouldn't have protocol constraints that are sensitive to whether
data is returned synchronously or not.
Per https://boringssl-review.googlesource.com/#/c/4112/, the original
limitation was to avoid OpenSSL ABI changes. This is no longer a
concern.
Add tests for the sync and async case. Send the empty records in two
batches to ensure the count is reset correctly.
Change-Id: I3fee839438527e71adb83d437879bb0d49ca5c07
Reviewed-on: https://boringssl-review.googlesource.com/5040
Reviewed-by: Adam Langley <agl@google.com>
Now that WebRTC honors packet boundaries (https://crbug.com/447431), we
can start enforcing them correctly. Configuring read-ahead now does
nothing. Instead DTLS will always set "read-ahead" and also correctly
enforce packet boundaries when reading records. Add tests to ensure that
badly fragmented packets are ignored. Because such packets don't fail
the handshake, the tests work by injecting an alert in the front of the
handshake stream and ensuring the DTLS implementation ignores them.
ssl3_read_n can be be considerably unraveled now, but leave that for
future cleanup. For now, make it correct.
BUG=468889
Change-Id: I800cfabe06615af31c2ccece436ca52aed9fe899
Reviewed-on: https://boringssl-review.googlesource.com/4820
Reviewed-by: Adam Langley <agl@google.com>
This drops in a copy of a subset of golang.org/x/crypto/poly1305 to implement
Poly1305. Hopefully this will keep them from regression as we rework the record
layer.
Change-Id: Ic1e0d941a0a9e5ec260151ced8acdf9215c4b887
Reviewed-on: https://boringssl-review.googlesource.com/4257
Reviewed-by: Adam Langley <agl@google.com>
Partly inspired by the new state exposed in
dc3da93899, stress this codepath by spamming our
poor shim with warning alerts.
Change-Id: I876c6e52911b6eb57493cf3e1782b37ea96d01f8
Reviewed-on: https://boringssl-review.googlesource.com/4112
Reviewed-by: Adam Langley <agl@google.com>
We have test coverage for invalid alerts, but not for normal ones on the DTLS
side.
Change-Id: I359dce8d4dc80dfa99b5d8bacd73f48a8e4ac310
Reviewed-on: https://boringssl-review.googlesource.com/3291
Reviewed-by: Adam Langley <agl@google.com>
The check on the DTLS side was broken anyway. On the TLS side, the spec does
say to ignore them, but there should be no need for this in future-proofing and
NSS doesn't appear to be lenient here. See also
https://boringssl-review.googlesource.com/#/c/3233/
Change-Id: I0846222936c5e08acdcfd9d6f854a99df767e468
Reviewed-on: https://boringssl-review.googlesource.com/3290
Reviewed-by: Adam Langley <agl@google.com>
