After sharding the session cache for fallbacks, the numbers have been pretty
good; 0.03% on dev and 0.02% on canary. Stable is at 0.06% but does not have
the sharded session cache. Before sharding, stable, beta, and dev had been
fairly closely aligned. Between 0.03% being low and the fallback saving us in
all but extremely contrived cases, I think this should be fairly safe.
Add tests for both the cipher suite and protocol version mismatch checks.
BUG=441456
Change-Id: I2374bf64d0aee0119f293d207d45319c274d89ab
Reviewed-on: https://boringssl-review.googlesource.com/3972
Reviewed-by: Adam Langley <agl@google.com>
This conceivably has a use, but NSS doesn't do this buffer either and it still
suffers from the same problems as the other uses of record_pqueue. This removes
the last use of record_pqueue. It also opens the door to removing pqueue
altogether as it isn't the right data structure for either of the remaining
uses either. (It's not clear it was right for record_pqueue either, but I don't
feel like digging into this code.)
Change-Id: If8a43e7332b3cd11a78a516f3e8ebf828052316f
Reviewed-on: https://boringssl-review.googlesource.com/4239
Reviewed-by: Adam Langley <agl@google.com>
It was only ever enabled for handshake and alert messages. The comments cite
renego as a use case though even then I'm not clear on why. The only use I see
is if, say, the Finished message and ClientKeyExchange came in out-of-order.
DTLS is unreliable so leaning on retransmit seems fine, and usually flights
will be packed into one packet where possible. NSS doesn't have any such
buffer and doesn't seem to have problems.
The buffering mechanism is also rather dubious. It stows away the entire packet
and read buffer---all 16K of it---and there may have been other records in that
packet.
Change-Id: Ic3b7bf817be380dc73102eec62c690ed093e6667
Reviewed-on: https://boringssl-review.googlesource.com/4238
Reviewed-by: Adam Langley <agl@google.com>
At this point, has_version has been set and we may even have a non-null cipher.
Trying to assign meaning to the record-layer version number is not worth making
s->version's semantics even more complicated.
Change-Id: Ia1cf341cf7306eb48d2d11241316dc2116306968
Reviewed-on: https://boringssl-review.googlesource.com/4237
Reviewed-by: Adam Langley <agl@google.com>
Compression is gone, so don't allow for compression overhead. With that fixed,
the second rr->length check in ssl3_get_record matches the length computation
which sizes the read buffer. The first is wrong and doesn't account for the
alignment padding. Move the second to the first.
Change-Id: I3f4f05de9fdf5c645ff24493bbfdf303dcc1aa90
Reviewed-on: https://boringssl-review.googlesource.com/4236
Reviewed-by: Adam Langley <agl@google.com>
Also check for overflow, although it really shouldn't happen.
Change-Id: I34dfe8eaf635aeaa8bef2656fda3cd0bad7e1268
Reviewed-on: https://boringssl-review.googlesource.com/4235
Reviewed-by: Adam Langley <agl@google.com>
These are redundant with the lower level ones in s3_pkt.c just before BIO_read.
Only the operation which actually failed an operation on the BIO should set
the wait state.
Not all failure paths in ssl3_read_bytes and dtls1_read_bytes set SSL_READING,
but those that don't leave the BIO in a retry state, so SSL_READING doesn't
matter.
Change-Id: I2ae064ecc8b2946cc8ae8f724be09dfe49e077b5
Reviewed-on: https://boringssl-review.googlesource.com/4230
Reviewed-by: Adam Langley <agl@google.com>
Fix up the variable names. Also avoid the messy logic of checking whether the
label and context collide with the normal key expansion ones in the face of
adverserial inputs. Make that the caller's responsibility, just as it's already
the caller's responsibility to ensure that different calls don't overlap. (The
label should be a constant string in an IANA registry anyway.)
Change-Id: I062fadb7b6a18fa946b883be660ea9b3f0f6277c
Reviewed-on: https://boringssl-review.googlesource.com/4216
Reviewed-by: Adam Langley <agl@google.com>
Separate actually writing the fragment to the network from assembling it so
there is no need for is_fragment. record_split_done also needn't be a global;
as of 7fdeaf11017b82368e0a97547fc491b90ad40f67, it is always reset to 0 whether
or not SSL3_WANT_WRITE occurred, despite the comment.
I believe this is sound, but the pre-7fdeaf1 logic wasn't quiiite right;
ssl3_write_pending allows a retry to supply *additional* data, so not all
plaintext had been commited to before the IV was randomized. We could fix this
by tracking how many bytes were committed to the last time we fragmented, but
this is purely an optimization and doesn't seem worth the complexity.
This also fixes the alignment computation in the record-splitting case. The
extra byte was wrong, as demonstrated by the assert.
Change-Id: Ia087a45a6622f4faad32e501942cc910eca1237b
Reviewed-on: https://boringssl-review.googlesource.com/4234
Reviewed-by: Adam Langley <agl@google.com>
It's still rather a mess, but this is at least somewhat clearer. The old one
had a lot of remnants of compression, etc.
Change-Id: Iffcb4dd4e8c4ab14f60abf917d22b7af960c93ba
Reviewed-on: https://boringssl-review.googlesource.com/4233
Reviewed-by: Adam Langley <agl@google.com>
If the key is missing, it seems the failure is assumed to be expected.
BUG=473924
Change-Id: I62edd9110fa74bee5e6425fd6786badf5398728c
Reviewed-on: https://boringssl-review.googlesource.com/4231
Reviewed-by: Adam Langley <agl@google.com>
Move the state to TestState rather than passing pointers to them everywhere.
Also move SSL_read and SSL_write retry loops into helper functions so they
aren't repeated everywhere. This also makes the SSL_write calls all
consistently account for partial writes.
Change-Id: I9bc083a03da6a77ab2fc03c29d4028435fc02620
Reviewed-on: https://boringssl-review.googlesource.com/4214
Reviewed-by: Adam Langley <agl@google.com>
Extend the False Start tests to optionally send an alert (thus avoiding
deadlock) before waiting for the out-of-order app data. Based on whether the
peer shuts off the connection before or after sending app data, we can
determine whether the peer False Started by observing purely external effects.
Change-Id: I8b9fecc29668e0b0c34b5fd19d0f239545011bae
Reviewed-on: https://boringssl-review.googlesource.com/4213
Reviewed-by: Adam Langley <agl@google.com>
Based on whether -false-start is passed, we expect SSL_CB_HANDSHAKE_DONE to or
not to fire. Also add a flag that asserts SSL_CB_HANDSHAKE_DONE does *not* fire
in any False Start test where the handshake fails after SSL_connect returns.
Change-Id: I6c5b960fff15e297531e15b16abe0b98be95bec8
Reviewed-on: https://boringssl-review.googlesource.com/4212
Reviewed-by: Adam Langley <agl@google.com>
That's a pretty obvious thing to test. I'm not sure how we forgot that one.
Change-Id: I7e1a7df6c6abbdd587e0f7723117f50d09faa5c4
Reviewed-on: https://boringssl-review.googlesource.com/4211
Reviewed-by: Adam Langley <agl@google.com>
There's multiple sets of APIs for selecting the curve. Fold away
SSL_OP_SINGLE_ECDH_USE as failing to set it is either a no-op or a bug. With
that gone, the consumer only needs to control the selection of a curve, with
key generation from then on being uniform. Also clean up the interaction
between the three API modes in s3_srvr.c; they were already mutually exclusive
due to tls1_check_ec_tmp_key.
This also removes all callers of EC_KEY_dup (and thus CRYPTO_dup_ex_data)
within the library.
Change-Id: I477b13bd9e77eb03d944ef631dd521639968dc8c
Reviewed-on: https://boringssl-review.googlesource.com/4200
Reviewed-by: Adam Langley <agl@google.com>
ASan's own malloc interceptor isn't compatible with this mechanism; it doesn't
see calls to __libc_malloc.
Change-Id: Ibac5aa05c6e40f1c72dcee3a2597e96deffca62c
Reviewed-on: https://boringssl-review.googlesource.com/4191
Reviewed-by: Adam Langley <agl@google.com>
SSL_CIPHER_get_rfc_name still returns an allocated string.
Change-Id: Ie2f14626c1ff22d0ea613b22439b7de5c04c9062
Reviewed-on: https://boringssl-review.googlesource.com/4190
Reviewed-by: Adam Langley <agl@google.com>
This is in preparation for using RAII in the unit tests. Those tests are built
in Chromium as well, but Chromium does not have C++11 library support across
all its toolchains. Compiler support is available, so add a partial
reimplementation of std::unique_ptr and std::move under crypto/test/. The
scopers for the crypto/ library are also moved there while the ones for ssl/
stay in ssl/test/.
Change-Id: I38f769acbc16a870db34649928575c7314b6e9f6
Reviewed-on: https://boringssl-review.googlesource.com/4120
Reviewed-by: Adam Langley <agl@google.com>
MinGW on Linux needs lowercase include files. On Windows this doesn't
matter since the filesystems are case-insensitive, but building
BoringSSL on Linux with MinGW has case-sensitive filesystems.
Change-Id: Id9c120d819071b041341fbb978352812d6d073bc
Reviewed-on: https://boringssl-review.googlesource.com/4090
Reviewed-by: Adam Langley <agl@google.com>
Partly inspired by the new state exposed in
dc3da938992d209a3b36acbd9695cfcab1fdf041, 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>
Google C++ style allows these. It's also considerably less tedious and
error-prone than defining an out-of-line constructor.
Change-Id: Ib76ccf6079be383722433046ac5c5d796dd1f525
Reviewed-on: https://boringssl-review.googlesource.com/4111
Reviewed-by: Adam Langley <agl@google.com>
It was failing only on 32-bit for some reason. Part of TestConfig wasn't
getting initialized.
Change-Id: I2a3747a347a47b47e2357f34d32f8db86d6cc629
Reviewed-on: https://boringssl-review.googlesource.com/4110
Reviewed-by: Adam Langley <agl@google.com>
Within the library, only ssl_update_cache read them, so add a dedicated field
to replace that use.
The APIs have a handful of uninteresting callers so I've left them in for now,
but they now always return zero.
Change-Id: Ie4e36fd4ab18f9bff544541d042bf3c098a46933
Reviewed-on: https://boringssl-review.googlesource.com/4101
Reviewed-by: Adam Langley <agl@google.com>
I'm guessing a previous iteration used dlsym to look up the real malloc.
Change-Id: I18be9ef4db4ed059400074c8507d4e2fea882fbc
Reviewed-on: https://boringssl-review.googlesource.com/4100
Reviewed-by: Adam Langley <agl@google.com>
Quite a few functions reported wrong function names when pushing
to the error stack.
Change-Id: I84d89dbefd2ecdc89ffb09799e673bae17be0e0f
Reviewed-on: https://boringssl-review.googlesource.com/4080
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Both on the client and the server.
Change-Id: I9892c6dbbb29938154aba4f53b10e8b5231f9c47
Reviewed-on: https://boringssl-review.googlesource.com/4071
Reviewed-by: Adam Langley <agl@google.com>
Align with upstream's renames from a while ago. These names are considerably
more standard. This also aligns with upstream in that both "ECDHE" and "EECDH"
are now accepted in the various cipher string parsing bits.
Change-Id: I84c3daeacf806f79f12bc661c314941828656b04
Reviewed-on: https://boringssl-review.googlesource.com/4053
Reviewed-by: Adam Langley <agl@google.com>
This is really just scar tissue with https://crbug.com/468889 being the real
underlying problem. But the test is pretty easy.
Change-Id: I5eca18fdcbde8665c0e6c3ac419a28152647d66f
Reviewed-on: https://boringssl-review.googlesource.com/4052
Reviewed-by: Adam Langley <agl@google.com>
A casual grep would suggest this function has the same problems as
CVE-2015-0291, but the structure is memset to 0, so the calls are unnecessary.
Also use BUF_memdup rather than an OPENSSL_malloc + mempcy pair.
Change-Id: Id605374d99cff32e2dccb7f9b8a9da226faf7715
Reviewed-on: https://boringssl-review.googlesource.com/4051
Reviewed-by: Adam Langley <agl@google.com>
In verifying the fix for CVE-2015-0291, I noticed we don't actually have any
test coverage for full handshakes on renegotiation. All our tests always do
resumptions.
Change-Id: Ia9b701e8a50ba9353fefb8cc4fb86e78065d0b40
Reviewed-on: https://boringssl-review.googlesource.com/4050
Reviewed-by: Adam Langley <agl@google.com>
Noticed these as I was poking around.
Change-Id: I93833a152583feced374c9febf7485bec7abc1c7
Reviewed-on: https://boringssl-review.googlesource.com/3973
Reviewed-by: Adam Langley <agl@google.com>
This too isn't version-specific. This removes the final difference between TLS
and DTLS SSL3_ENC_METHODs and we can fold them together. (We should be able to
fold away the version-specific differences too, but all in due time.)
Change-Id: I6652d3942a0970273d46d28d7052629c81f848b5
Reviewed-on: https://boringssl-review.googlesource.com/3771
Reviewed-by: Adam Langley <agl@google.com>
This fixes test flakiness on Windows.
BUG=467767
Change-Id: Ie69b5b43ddd524aadb15c53705f6ec860e928786
Reviewed-on: https://boringssl-review.googlesource.com/4001
Reviewed-by: Adam Langley <agl@google.com>
It created the cert structure in SSL_CTX or SSL if it was NULL, but they can
never be NULL as the comments already said.
(Imported from upstream's 2c3823491d8812560922a58677e3ad2db4b2ec8d.)
Change-Id: I97c7bb306d6f3c18597850db9f08023b2ef74839
Reviewed-on: https://boringssl-review.googlesource.com/4042
Reviewed-by: Adam Langley <agl@google.com>
(Imported from upstream's e1b568dd2462f7cacf98f3d117936c34e2849a6b.)
Our RAND_bytes secretly can't actually fail, but we should propagate the check
upwards.
Change-Id: Ieaaea98dad00bf73b1c0a42c039507d76b10ac78
Reviewed-on: https://boringssl-review.googlesource.com/4003
Reviewed-by: Adam Langley <agl@google.com>
This allows the current RC4 state of an SSL* to be extracted. We have
internal uses for this functionality.
Change-Id: Ic124c4b253c8325751f49e7a4c021768620ea4b7
Reviewed-on: https://boringssl-review.googlesource.com/3722
Reviewed-by: Adam Langley <agl@google.com>
This callback receives information about the ClientHello and can decide
whether or not to allow the handshake to continue.
Change-Id: I21be28335fa74fedb5b73a310ee24310670fc923
Reviewed-on: https://boringssl-review.googlesource.com/3721
Reviewed-by: Adam Langley <agl@google.com>
This mostly[*] doesn't matter for TLS since the message would have been
rejected anyway, but, in DTLS, if the peer rejects our Finished, it will send
an encrypted alert. This will then cause it to hang, which isn't very helpful.
I've made the change on both TLS and DTLS so the two protocols don't diverge on
this point. It is true that we're accepting nominally encrypted and
authenticated alerts before Finished, but, prior to ChangeCipherSpec, the
alerts are sent in the clear anyway so an attacker could already inject alerts.
A consumer could only be sensitive to it being post-CCS if it was watching
msg_callback. The only non-debug consumer of msg_callback I've found anywhere
is some hostapd code to detect Heartbeat.
See https://code.google.com/p/webrtc/issues/detail?id=4403 for an instance
where the equivalent behavior in OpenSSL masks an alert.
[*] This does change behavior slightly if the peer sends a warning alert
between CCS and Finished. I believe this is benign as warning alerts are
usually ignored apart from info_callback and msg_callback. The one exception is
a close_notify which is a slightly new state (accepting close_notify during a
handshake seems questionable...), but they're processed pre-CCS too.
Change-Id: Idd0d49b9f9aa9d35374a9f5e2f815cdb931f5254
Reviewed-on: https://boringssl-review.googlesource.com/3883
Reviewed-by: Adam Langley <agl@google.com>
May as well use this convenience function when we can. A little tidier. Even
fixes a leak on malloc failure in eckey_type2param.
Change-Id: Ie48dd98f2fe03fa9911bd78db4423ab9faefc63d
Reviewed-on: https://boringssl-review.googlesource.com/3772
Reviewed-by: Adam Langley <agl@google.com>
Fix a few remnants of them being unsigned long. Also rename extremely unhelpful
variable names in SSL_get_error. i is now ret_code to match the header.
Change-Id: Ic31d6626bfe09c9e21c03691dfc716c5573833ea
Reviewed-on: https://boringssl-review.googlesource.com/3881
Reviewed-by: Adam Langley <agl@google.com>
Some things were misindented in the reformatting.
Change-Id: I97642000452ce4d5b4c8a39b794cec13097d8760
Reviewed-on: https://boringssl-review.googlesource.com/3870
Reviewed-by: Adam Langley <agl@google.com>
David Benjamin
Adam Langley
Håvard Molland