I even made a note to update my change in light of this but still
managed to forget. With this, grep tells me that all |alert| values have
the correct default value now.
Change-Id: If37c4f2f6b36cf69e53303a3924a8eda4cfffed8
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We already have some cases where the default is DECODE_ERROR and, rather
than have two defaults, just harmonise on that. (INTERNAL_ERROR might
make more sense in some cases, but we don't want to have to remember
what the default is in each case and nobody really cares what the actual
value is anyway.)
Change-Id: I28007898e8d6e7415219145eb9f43ea875028ab2
Reviewed-on: https://boringssl-review.googlesource.com/13720
Reviewed-by: Adam Langley <agl@google.com>
Before, attempting to build the code using Yasm as the assembler would
result in warnings like this:
warning : no non-local label before `.chacha20_consts'
Precede the local labels with a non-local label to suppress these
warnings.
It isn't clear why these labels are defined as local labels instead of
regular labels. Making them non-local may be a better idea.
For reference, Yasm's interpretation of local labels is described
succinctly at
https://www.tortall.net/projects/yasm/manual/html/nasm-local-label.html.
Change-Id: Ifc92de7fd7379859fe33f1137ab20b6ec282cd0b
Reviewed-on: https://boringssl-review.googlesource.com/13384
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: If97da565155292d5f0de5c6a8b0fd8508398768a
Reviewed-on: https://boringssl-review.googlesource.com/13564
Commit-Queue: David Benjamin <davidben@google.com>
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This ABCD thing with multiple ways to enter the same function is
confusing. ClientHello processing is the most egregious of these, so
split it up ahead of time as an intermediate step.
States remain named as-is due to them being exposed as public API. We
should have a story for which subset of states we need to promise as
public API and to intentionally break all other cases (map to some
generic value) before we go too far there.
BUG=128
Change-Id: Id9d28c6de14bd53c3294552691cebe705748f489
Reviewed-on: https://boringssl-review.googlesource.com/13563
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Previously, the alert was uninitialised.
(Thanks to Robert Swiecki and honggfuzz.)
Change-Id: I2d4eb96b0126f3eb502672b2600ad43ae140acec
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The Go side (thankfully not the C side) was not fully updated for the
exporter secret derivation being earlier at some point. Also TLS 1.2
upgrades the PRF hash for pre-1.2 ciphers to SHA-256, so make sure we
cover that.
Change-Id: Ibdf50ef500e7e48a52799ac75577822bc304a613
Reviewed-on: https://boringssl-review.googlesource.com/13663
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Change-Id: I471880d785c38123e038279f67348bf02b47d091
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Replicate the logic in the AllTests targets to dump the error queue on
failure. GTest seems to print to stdout, so we do here too.
BUG=129
Change-Id: I623b695fb9a474945834c3653728f54e5b122187
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The more complex ones will want a TEST_P, but here are a few easy ones
to start with.
BUG=129
Change-Id: I2e341d04910c0b05a5bc7afec961c4541ca7db41
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GTest sends its output to stdout, not stderr. Merge them in the runner
(though eventually we'll teach the bots to run the GTest targets
directly) so we don't lose it.
BUG=129
Change-Id: I7c499cd9572f46f97bd4b7f6c6c9beca057625f2
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Right now the only way to set an SCT list is the per-context function
SSL_CTX_set_signed_cert_timestamp_list. However this assumes that all the
SSLs generated from a SSL_CTX share the same SCT list, which is wrong.
In order to avoid memory duplication in case SSL_CTX has its own list, a
CRYPTO_BUFFER is used for both SSL_CTX and SSL.
Change-Id: Id20e6f128c33cf3e5bff1be390645441be6518c6
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As previously discussed, it turns out we don't actually need this, so
there's no point in keeping it.
Change-Id: If549c917b6bd818cd36948e37cb7839c8d122b1a
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(Imported from upstream's efe8398649a1d7fc9d84d2818592652e0632a8a8.)
Change-Id: I0d04b3e75ec26a7dd3a7af31b0e115723c4b24d9
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The SNI extension may be ACKed by the server. This is kind of pointless,
but make sure we cover these codepaths.
Change-Id: I14b25ab865dd6e35a30f11ebc9027a1518bbeed9
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Change-Id: I878dfb9f5d3736c3ec0d5fa39052cca58932dbb7
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Change-Id: I38cd04fa40edde4e4dd31fdc16bbf92985430198
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The recent rewrite didn't account for the OID being missing but the NID
present.
Change-Id: I335e52324c62ee3ba849c0c385aaf86123a8ffbb
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ssl_get_new_session would stash a copy of the configured hostname
into the SSL_SESSION on the server. Servers have no reason to
configuring that anyway, but, if one did, we'd leak when filling in
the client-supplied SNI later.
Remove this code and guard against this by remembering to OPENSSL_free
when overwriting that field (although it should always be NULL).
Reported-By: Robert Swiecki <swiecki@google.com>
Change-Id: Ib901b5f82e5cf818060ef47a9585363e05dd9932
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I believe these are now unused.
Change-Id: I438da3d56ca598260fe0f5698ccb6649bd97b859
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Using the arg parameter does not work well. This is purely an
SSL_CTX-level callback, not an SSL-level one.
Change-Id: Ib968807efbe7dd08e71cea1c4d8034a52c729d45
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With the CRYPTO_BUFFER stuff, this API is now slightly more complex. Add
some tests as a sanity-check.
Change-Id: I9da20e3eb6391fc86ed215c5fabec71aa32ef56f
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It is hard to control what flags consumers may try to build us with.
Account for someone adding _GNU_SOURCE to the build line.
Change-Id: I4c931da70a9dccc89382ce9100c228c29d28d4bf
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This is purely to support curl, which now has HTTPS proxy support that,
sadly, uses the BIO SSL. Don't use the BIO SSL for anything else.
Change-Id: I9ef6c9773ec87a11e0b5a93968386ac4b351986d
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The TLS 1.2 and 1.3 state machines do the exact same thing at the
beginning. Let them process the ClientHello extensions, etc., and
finalize the certificate in common code. Once we start picking
parameters, we begin to diverge. Everything before this point is
arguably part of setting up the configuration, which is
version-agnostic.
BUG=128
Change-Id: I293ea3087ecbc3267bd8cdaa011c98d26a699789
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The version negotiation logic was a little bizarrely wedged in the
middle of the state machine. (We don't support server renegotiation, so
have_version is always false here.)
BUG=128
Change-Id: I9448dce374004b92e8bd5172c36a4e0eea51619c
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This option allows a file containing PEM root certificates to be given.
It causes the server's certificate to be verified against those roots.
Change-Id: Iaa92581d5834e436bcedf9d4088f7204abc6b95b
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Intel SDE is a tool that can simulate many different Intel chips. This
lets us test whether our CPUID-guarding is correct and would have
caught, for example, this morning's ChaCha20-Poly1305 problem.
Change-Id: I39de2bedb1c29b48b02ba30c51fdce57a5cbe640
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We can implement this with the SSL stack's public API fine.
Change-Id: Ia95c9174d7b850b7fed89046d3c351c970855cf3
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This change guards the ChaCha20-Poly1305 asm on having SSE4.1. The
pinsrb instruction that it uses requires this, which I didn't notice,
and so this would fail on Core 2 and older chips.
BUG=chromium:688384
Change-Id: I177e3492782a1a9974b6df29d26fc4809009ad48
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The current X25519 assembly has a 352-byte stack frame and saves the
regsiters at the bottom. This means that the CFI information cannot be
represented in the “compact” form that MacOS seems to want to use (see
linked bug).
The stack frame looked like:
360 CFA
352 return address
⋮
56 (296 bytes of scratch space)
48 saved RBP
40 saved RBX
32 saved R15
24 saved R14
16 saved R13
8 saved R12
0 (hole left from 3f38d80b dropping the superfluous saving of R11)
Now it looks like:
352 CFA
344 return address
336 saved RBP
328 saved RBX
320 saved R15
312 saved R14
304 saved R13
296 saved R12
⋮
0 (296 bytes of scratch space)
The bulk of the changes involve subtracting 56 from all the offsets to
RSP when working in the scratch space. This was done in Vim with:
'<,'>s/\([1-9][0-9]*\)(%rsp)/\=submatch(1)-56."(%rsp)"/
BUG=176
Change-Id: I022830e8f896fe2d877015fa3ecfa1d073207679
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It has no other callers, now that the handshake is written elsewhere.
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These are unused. BIO_puts is implemented genericly.
Change-Id: Iecf1b6736291de8c48ce1adbb7401963a120d122
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The Mac ld gets unhappy about "weird" unwind directives:
In chacha20_poly1305_x86_64.pl, $keyp is being pushed on the stack
(according to the comment) because it gets clobbered in the computation
somewhere. $keyp is %r9 which is not callee-saved (it's an argument
register), so we don't need to tag it with .cfi_offset.
In x25519-asm-x86_64.S, x25519_x86_64_mul saves %rdi on the stack.
However it too is not callee-saved (it's an argument register) and
should not have a .cfi_offset. %rdi also does not appear to be written
to anywhere in the function, so there's no need to save it at all.
(This does not resolve the "r15 is saved too far from return address"
errors. Just the non-standard register ones.)
BUG=176
Change-Id: I53f3f7db3d1745384fb47cb52cd6536aabb5065e
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In TLS 1.2, resumption's benefits are more-or-less subsumed by False
Start. TLS 1.2 resumption lifetime is bounded by how much traffic we are
willing to encrypt without fresh key material, so the lifetime is short.
Renewal uses the same key, so we do not allow it to increase lifetimes.
In TLS 1.3, resumption unlocks 0-RTT. We do not implement psk_ke, so
resumption incorporates fresh key material into both encrypted traffic
(except for early data) and renewed tickets. Thus we are both more
willing to and more interested in longer lifetimes for tickets. Renewal
is also not useless. Thus in TLS 1.3, lifetime is bound separately by
the lifetime of a given secret as a psk_dhe_ke authenticator and the
lifetime of the online signature which authenticated the initial
handshake.
This change maintains two lifetimes on an SSL_SESSION: timeout which is
the renewable lifetime of this ticket, and auth_timeout which is the
non-renewable cliff. It also separates the TLS 1.2 and TLS 1.3 timeouts.
The old session timeout defaults and configuration apply to TLS 1.3, and
we define new ones for TLS 1.3.
Finally, this makes us honor the NewSessionTicket timeout in TLS 1.3.
It's no longer a "hint" in 1.3 and there's probably value in avoiding
known-useless 0-RTT offers.
BUG=120
Change-Id: Iac46d56e5a6a377d8b88b8fa31f492d534cb1b85
Reviewed-on: https://boringssl-review.googlesource.com/13503
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This special-case is almost unexposed (the timeout is initialized to the
default) except if the caller calls SSL_CTX_set_timeout(0). Preserve
that behavior by mapping 0 to SSL_DEFAULT_SESSION_TIMEOUT in
SSL_CTX_set_timeout but simplify the internal state.
Change-Id: Ice03a519c25284b925f1e0cf485f2d8c54dc5038
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It is impossible to have to call dispatch_alert when writing application
data. Now that we don't send warning alerts through ssl3_send_alert, all
alerts are closure alerts, which means attempts to write will fail.
This prunes a lot of dead code, avoiding the re-entrancy in the write
path. With that gone, tracking alert_dispatch is much more
straightforward.
BUG=146
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Fix this and add a test. Otherwise enabling TLS 1.3 will cause a server
to blow through its session cache.
Change-Id: I67edbc468faedfd94a6c30cf842af085a6543b50
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This change moves the interface between |X509| and |CRYPTO_BUFFER| a
little further out, towards the API.
Change-Id: I1c014d20f12ad83427575843ca0b3bb22de1a694
Reviewed-on: https://boringssl-review.googlesource.com/13365
Reviewed-by: Adam Langley <agl@google.com>
The recent CRYPTO_BUFFER changes meant that |X509| objects passed to
SSL_CTX_add_extra_chain_cert would be |free|ed immediately. However,
some third-party code (at least serf and curl) continue to use the
|X509| even after handing over ownership.
In order to unblock things, keep the past |X509| around for a while to
paper over the issues with those libraries while we try and upstream
changes.
Change-Id: I832b458af9b265749fed964658c5c34c84d518df
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Change-Id: I44202457841f06a899e140f78ae8afa7ac720283
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This change serves to check that all our consumers can process assembly
with CFI directives in it.
For the first change I picked a file that's not perlasm to keep things
slightly simplier, but that might have been a mistake:
DJB's tooling always aligns the stack to 32 bytes and it's not possible
to express this in DWARF format (without using a register to store the
old stack pointer).
Since none of the functions here appear to care about that alignment, I
removed it from each of them. I also trimmed the set of saved registers
where possible and used the redzone for functions that didn't need much
stack.
Overall, this appears to have slightly improved the performance (by
about 0.7%):
Before:
Did 46000 Curve25519 base-point multiplication operations in 3023288us (15215.2 ops/sec)
Did 46000 Curve25519 arbitrary point multiplication operations in 3017315us (15245.3 ops/sec)
Did 46000 Curve25519 base-point multiplication operations in 3015346us (15255.3 ops/sec)
Did 46000 Curve25519 arbitrary point multiplication operations in 3018609us (15238.8 ops/sec)
Did 46000 Curve25519 base-point multiplication operations in 3019004us (15236.8 ops/sec)
Did 46000 Curve25519 arbitrary point multiplication operations in 3013135us (15266.5 ops/sec)
After:
Did 46000 Curve25519 base-point multiplication operations in 3007659us (15294.3 ops/sec)
Did 47000 Curve25519 arbitrary point multiplication operations in 3054202us (15388.6 ops/sec)
Did 46000 Curve25519 base-point multiplication operations in 3008714us (15288.9 ops/sec)
Did 46000 Curve25519 arbitrary point multiplication operations in 3004740us (15309.1 ops/sec)
Did 46000 Curve25519 base-point multiplication operations in 3009140us (15286.8 ops/sec)
Did 47000 Curve25519 arbitrary point multiplication operations in 3057518us (15371.9 ops/sec)
Change-Id: I31df11c45b2ea0bf44dde861d52c27f848331691
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Change-Id: I81a94be94103d3c763cd6b2c1b8196300808c6fe
Reviewed-on: https://boringssl-review.googlesource.com/13386
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>
Move to explicit hashing everywhere, matching TLS 1.2 with TLS 1.3. The
ssl_get_message calls between all the handshake states are now all
uniform so, when we're ready, we can rewire the TLS 1.2 state machine to
look like the TLS 1.3 one. (ssl_get_message calls become an
ssl_hs_read_message transition, reuse_message becomes an ssl_hs_ok
transition.)
This avoids some nuisance in processing the ServerHello at the 1.2 / 1.3
transition.
The downside of explicit hashing is we may forget to hash something, but
this will fail to interop with our tests and anyone else, so we should
be able to catch it.
BUG=128
Change-Id: I01393943b14dfaa98eec2a78f62c3a41c29b3a0e
Reviewed-on: https://boringssl-review.googlesource.com/13266
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>
This is kind of annoying (even new state is needed to keep the layering
right). As part of aligning the read paths of the TLS 1.2 and TLS 1.3
state machine, we'll want to move to states calling
ssl_hash_current_message when the process the message, rather than when
the message is read. Right now the TLS 1.2 optional message story
(reuse_message) depends on all messages preceded by an optional message
using ssl_hash_message. For instance, if TLS 1.2 decided to place
CertificateStatus before ServerKeyExchange, we would not be able to
handle it.
However, V2ClientHello, by being handled in the message layer, relies on
ssl_get_message-driven hashing to replace the usual ClientHello hash
with a hash of something custom. This switches things so rather than
ClientHellos being always pre-hashed by the message layer, simulated
ClientHellos no-op ssl_hash_current_message.
This just replaces one hack with another (V2ClientHello is inherently
nasty), but this hack should be more compatible with future plans.
BUG=128
Change-Id: If807ea749d91e306a37bb2362ecc69b84bf224c9
Reviewed-on: https://boringssl-review.googlesource.com/13265
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>
