Macros need a healthy dose of parentheses to avoid expression-level
misparses. Most of this comes from the clang-tidy CL here:
https://android-review.googlesource.com/c/235696/
Also switch most of the macros to use do { ... } while (0) to avoid all
the excessive comma operators and statement-level misparses.
Change-Id: I4c2ee51e347d2aa8c74a2d82de63838b03bbb0f9
Reviewed-on: https://boringssl-review.googlesource.com/11660
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BUG=6
Change-Id: I463f5daa0bbf0f65269c52da25fa235ee2aa6ffb
Reviewed-on: https://boringssl-review.googlesource.com/11240
Commit-Queue: David Benjamin <davidben@google.com>
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This should land in the same group of revisions as the two parent
commits.
Change-Id: Id9d769b890b3308ea70b705e7241c73cb1930ede
Reviewed-on: https://boringssl-review.googlesource.com/11581
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This is part of TLS 1.3 draft 16 but isn't much of a wire format change,
so go ahead and add it now. When rolling into Chromium, we'll want to
add an entry to the error mapping.
Change-Id: I8fd7f461dca83b725a31ae19ef96c890d603ce53
Reviewed-on: https://boringssl-review.googlesource.com/11563
Reviewed-by: David Benjamin <davidben@google.com>
We only save them at TLS 1.0 through 1.2. This saves 104 bytes of
per-connection memory.
Change-Id: If397bdc10e40f0194cba01024e0e9857d6b812f0
Reviewed-on: https://boringssl-review.googlesource.com/11571
Reviewed-by: Adam Langley <agl@google.com>
We only need one copy, not two. This trims 130 bytes of per-connection
memory.
Change-Id: I334aa7b1f8608e72426986bfa68534d416f3bda9
Reviewed-on: https://boringssl-review.googlesource.com/11569
Reviewed-by: Adam Langley <agl@google.com>
tls-unique isn't defined at TLS 1.3 yet. (Given that it was too small in
1.2, they may just define a new one entirely?) SSL_get_(peer_)finished
doesn't work at 1.3 and is only used in lieu of computing tls-unique,
also undefined at SSL 3.0.
This is in preparation for trimming the copies of the Finished messages
we retain.
Change-Id: Iace99f2baea92c511c4041c592300dfbbe7226e2
Reviewed-on: https://boringssl-review.googlesource.com/11568
Reviewed-by: Adam Langley <agl@google.com>
SSL_HANDSHAKE is dropped after the handshake, so I've removed the logic
around smaller sizes. It's much simpler when we can use CBS_stow and
CBB_finish without extra bounds-checking.
Change-Id: Idafaa5d69e171aed9a8759f3d44e52cb01c40f39
Reviewed-on: https://boringssl-review.googlesource.com/11567
Reviewed-by: Adam Langley <agl@google.com>
Now not only the pointers but also the list itself is released after the
handshake completes.
Change-Id: I8b568147d2d4949b3b0efe58a93905f77a5a4481
Reviewed-on: https://boringssl-review.googlesource.com/11528
Reviewed-by: Adam Langley <agl@google.com>
This releases memory associated with them after the handshake. Note this
changes the behavior of |SSL_get0_certificate_types| and
|SSL_get_client_CA_list| slightly. Both functions now return NULL
outside of the handshake. But they were already documented to return
something undefined when not called at the CertificateRequest.
A survey of callers finds none that would care. (Note
SSL_get_client_CA_list is used both as a getter for the corresponding
server config setter and to report client handshake properties. Only the
latter is affected.) It's also pretty difficult to imagine why a caller
would wish to query this stuff at any other time, and there are clear
benefits to dropping the CA list after the handshake (some servers send
ABSURDLY large lists).
Change-Id: I3ac3b601ff0cfa601881ce77ae33d99bb5327004
Reviewed-on: https://boringssl-review.googlesource.com/11521
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: I5d4fc0d3204744e93d71a36923469035c19a5b10
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BUG=77
Change-Id: If568412655aae240b072c29d763a5b17bb5ca3f7
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BUG=77
Change-Id: Id8c45e98c4c22cdd437cbba1e9375239e123b261
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cURL calls this function if |OPENSSL_VERSION_NUMBER| is in [0x10002003,
0x10002fff], which it now is for BoringSSL after 0aecbcf6.
Change-Id: I3f224f73f46791bd2232a1a96ed926c32740a6f6
Reviewed-on: https://boringssl-review.googlesource.com/11461
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Commit-Queue: David Benjamin <davidben@google.com>
This function is used by NGINX to enable specific curves for ECDH from a
configuration file. However when building with BoringSSL, since it's not
implmeneted, it falls back to using EC_KEY_new_by_curve_name() wich doesn't
support X25519.
Change-Id: I533df4ef302592c1a9f9fc8880bd85f796ce0ef3
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Change-Id: I73f9fd64b46f26978b897409d817b34ec9d93afd
Reviewed-on: https://boringssl-review.googlesource.com/11080
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This GREASEs cipher suites, groups, and extensions. For now, we'll
always place them in a hard-coded position. We can experiment with more
interesting strategies later.
If we add new ciphers and curves, presumably we prefer them over current
ones, so place GREASE values at the front. This prevents implementations
from parsing only the first value and ignoring the rest.
Add two new extensions, one empty and one non-empty. Place the empty one
in front (IBM WebSphere can't handle trailing empty extensions) and the
non-empty one at the end.
Change-Id: If2e009936bc298cedf2a7a593ce7d5d5ddbb841a
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Upstream makes 0 mean "min/max supported version". Match that behavior,
although call it "default" instead. It shouldn't get you TLS 1.3 until
we're ready to turn it on everywhere.
BUG=90
Change-Id: I9f122fceb701b7d4de2ff70afbc1ffdf370cb97e
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We'd previously been assuming we'd want to predict P-256 and X25519 but,
on reflection, that's nonsense. Although, today, P-256 is widespread and
X25519 is less so, that's not the right question to ask. Those servers
are all 1.2.
The right question is whether we believe enough servers will get to TLS
1.3 before X25519 to justify wasting 64 bytes on all other connections.
Given that OpenSSL has already shipped X25519 and Microsoft was doing
interop testing on X25519 around when we were shipping it, I think the
answer is no.
Moreover, if we are wrong, it will be easier to go from predicting one
group to two rather than the inverse (provided we send a fake one with
GREASE). I anticipate prediction-miss HelloRetryRequest logic across the
TLS/TCP ecosystem will be largely untested (no one wants to pay an RTT),
so taking a group out of the predicted set will likely be a risky
operation.
Only predicting one group also makes things a bit simpler. I haven't
done this here, but we'll be able to fold the 1.2 and 1.3 ecdh_ctx's
together, even.
Change-Id: Ie7e42d3105aca48eb9d97e2e05a16c5379aa66a3
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The old numbers violate a MUST-level requirement in TLS 1.2 to not
advertise anonymous (0x0700 ends in 0x00). The spec has been updated
with new allocations which avoid these.
BUG=webrtc:6342
Change-Id: Ia5663ada98fa1ebf0f8a7f50fe74a0e9206c4194
Reviewed-on: https://boringssl-review.googlesource.com/11131
Reviewed-by: Adam Langley <agl@google.com>
Found by libFuzzer and then one more mistake caught by valgrind. Add a
test for this case.
Change-Id: I92773bc1231bafe5fc069e8568d93ac0df4c8acb
Reviewed-on: https://boringssl-review.googlesource.com/11129
Reviewed-by: David Benjamin <davidben@google.com>
Upstream added these functions after we did but decided to change the
names slightly. I'm not sure why they wanted to add the "proto" in
there, but align with them nonetheless so the ecosystem only has one set
of these functions.
BUG=90
Change-Id: Ia9863c58c9734374092051f02952b112806040cc
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This is in preparation for using the supported_versions extension to
experiment with draft TLS 1.3 versions, since we don't wish to restore
the fallback. With versions begin opaque values, we will want
version_from_wire to reject unknown values, not attempt to preserve
order in some way.
This means ClientHello.version processing needs to be separate code.
That's just written out fully in negotiate_version now. It also means
SSL_set_{min,max}_version will notice invalid inputs which aligns us
better with upstream's versions of those APIs.
This CL doesn't replace ssl->version with an internal-representation
version, though follow work should do it once a couple of changes land
in consumers.
BUG=90
Change-Id: Id2f5e1fa72847c823ee7f082e9e69f55e51ce9da
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This will make it a little easier to store the normalized version rather
than the wire version. Also document the V2ClientHello behavior.
Change-Id: I5ce9ccce44ca48be2e60ddf293c0fab6bba1356e
Reviewed-on: https://boringssl-review.googlesource.com/11121
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wpa_supplicant in AOSP has now been updated, so these all can go. We're
just left with the AES keywrap business.
Change-Id: Ie4c3e08902a2a1f9b43e1907116c7d85791ad5e9
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One less field to reset on renego and save a pointer of post-handshake
memory.
Change-Id: Ifc0c3c73072af244ee3848d9a798988d2c8a7c38
Reviewed-on: https://boringssl-review.googlesource.com/11086
Reviewed-by: Adam Langley <agl@google.com>
On 64-bit systems the SSL structure is 1/16th padding. This change
reorders some fields and changes one to a bitfield in order to reduce
the memory usage a little.
Change-Id: Id7626a44d22652254717d544bdc2e08f1b0d705f
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This withdraws support for -DBORINGSSL_ENABLE_RC4_TLS, and removes the
RC4 AEADs.
Change-Id: I1321b76bfe047d180743fa46d1b81c5d70c64e81
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Conscrypt would like to write a CTS test that the callback isn't set
unexpectedly.
Change-Id: I11f987422daf0544e90f5cff4d7aaf557ac1f5a2
Reviewed-on: https://boringssl-review.googlesource.com/11060
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Now that we have the extern "C++" trick, we can just embed them in the
normal headers. Move the EVP_CIPHER_CTX deleter to cipher.h and, in
doing so, take away a little bit of boilerplate in defining deleters.
Change-Id: I4a4b8d0db5274a3607914d94e76a38996bd611ec
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Change-Id: I431c6e5b8f7de4663ba3db52f6fe0062caaf88ba
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Unlike the Scoped* types, bssl::UniquePtr is available to C++ users, and
offered for a large variety of types. The 'extern "C++"' trick is used
to make the C++ bits digestible to C callers that wrap header files in
'extern "C"'.
Change-Id: Ifbca4c2997d6628e33028c7d7620c72aff0f862e
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Changing parameters on renegotiation makes all our APIs confusing. This
one has no reason to change, so lock it down. In particular, our
preference to forbid Token Binding + renego may be overridden at the
IETF, even though it's insane. Loosening it will be a bit less of a
headache if EMS can't change.
https://www.ietf.org/mail-archive/web/unbearable/current/msg00690.html
claims that this is already in the specification and enforced by NSS. I
can't find anything to this effect in the specification. It just says
the client MUST disable renegotiation when EMS is missing, which is
wishful thinking. At a glance, NSS doesn't seem to check, though I could
be misunderstanding the code.
Nonetheless, locking this down is a good idea anyway. Accurate or not,
take the email as an implicit endorsement of this from Mozilla.
Change-Id: I236b05991d28bed199763dcf2f47bbfb9d0322d7
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nginx consumes these error codes without #ifdefs. Continue to define
them for compatibility, even though we never emit them.
BUG=95
Change-Id: I1e991987ce25fc4952cc85b98ffa050a8beab92e
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peer_sigalgs should live on SSL_HANDSHAKE. This both releases a little
bit of memory after the handshake is over and also avoids the bug where
the sigalgs get dropped if SSL_set_SSL_CTX is called at a bad time. See
also upstream's 14e14bf6964965d02ce89805d9de867f000095aa.
This only affects consumers using the old SNI callback and not
select_certificate_cb.
Add a test that the SNI callback works as expected. In doing so, add an
SSL_CTX version of the signing preferences API. This is a property of
the cert/key pair (really just the key) and should be tied to that. This
makes it a bit easier to have the regression test work with TLS 1.2 too.
I thought we'd fixed this already, but apparently not... :-/
BUG=95
Change-Id: I75b02fad4059e6aa46c3b05183a07d72880711b3
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Chromium has switched to better APIs.
Change-Id: I26209b3a03c6a0db1ddce2f1fc99c8750cf6e56a
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Having two copies of this is confusing. This field is inherently tied to
the certificate chain, which lives on SSL_SESSION, so this should live
there too. This also wasn't getting reset correctly on SSL_clear, but
this is now resolved.
Change-Id: I22b1734a93320bb0bf0dc31faa74d77a8e1de906
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As documented by OpenSSL, it does not interact with session resumption
correctly:
https://www.openssl.org/docs/manmaster/ssl/SSL_set_verify_result.html
Sadly, netty-tcnative calls it, but we should be able to get them to
take it out because it doesn't do anything. Two of the three calls are
immediately after SSL_new. In OpenSSL and BoringSSL as of the previous
commit, this does nothing.
The final call is in verify_callback (see SSL_set_verify). This callback
is called in X509_verify_cert by way of X509_STORE_CTX_set_verify_cb.
As soon as X509_verify_cert returns, ssl->verify_result is clobbered
anyway, so it doesn't do anything.
Within OpenSSL, it's used in testdane.c. As far as I can tell, it does
not actually do a handshake and just uses this function to fake having
done one. (Regardless, we don't need to build against that.)
This is done in preparation for removing ssl->verify_result in favor of
session->verify_result.
Change-Id: I7e32d7f26c44f70136c72e58be05a3a43e62582b
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Change-Id: I2e1ee319bb9852b9c686f2f297c470db54f72279
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BUG=75
Change-Id: Ied864cfccbc0e68d71c55c5ab563da27b7253463
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The server should not be allowed select a protocol that wasn't
advertised. Callers tend to not really notice and act as if some default
were chosen which is unlikely to work very well.
Change-Id: Ib6388db72f05386f854d275bab762ca79e8174e6
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If cert_cb runs asynchronously, we end up repeating a large part of very
stateful ClientHello processing. This seems to be mostly fine and there
are few users of server-side cert_cb (it's a new API in 1.0.2), but it's
a little scary.
This is also visible to external consumers because some callbacks get
called multiple times. We especially should try to avoid that as there
is no guarantee that these callbacks are idempotent and give the same
answer each time.
Change-Id: I212b2325eae2cfca0fb423dace101e466c5e5d4e
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Between TLS 1.2, TLS 1.3, and the early callback, we've got a lot of
ClientHello parsers. Unify everything on the early callback's parser. As
a side effect, this means we can parse a ClientHello fairly succinctly
from any function which will let us split up ClientHello states where
appropriate.
Change-Id: I2359b75f80926cc7d827570cf33f93029b39e525
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It was renamed to ticket_liftetime_hint in
1e6f11a7ff, which breaks Qt.
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