Commit Graph

775 Commits

Author SHA1 Message Date
David Benjamin
820731a2b0 Fix some typos in license headers.
These are not in upstream and were probably introduced on accident by stray vim
keystrokes.

Change-Id: I35f51f81fc37e75702e7d8ffc6f040ce71321b54
Reviewed-on: https://boringssl-review.googlesource.com/5490
Reviewed-by: Adam Langley <agl@google.com>
2015-07-29 19:23:51 +00:00
Matt Braithwaite
bc97c69d76 Make methods of |RAND_SSLEay| do reasonable things.
This means e.g. that a caller can say:

  RAND_SSLEay()->bytes(...)

and so on.  But in exchange for this convenience, I've changed the
signatures to be more BoringSSL-ish (|size_t| instead of |int|).
That's fine; |RAND_set_rand_method(SSLEay())| still works.  And by
works I mean "does nothing".

Change-Id: I35479b5efb759da910ce46e22298168b78c9edcf
Reviewed-on: https://boringssl-review.googlesource.com/5472
Reviewed-by: Adam Langley <agl@google.com>
2015-07-23 17:58:51 +00:00
Adam Langley
3534919c19 Regenerate stack_macros.h
No functional changes but it saves diff noise in other changes in the
future.

Change-Id: Ib8bf43f1d108f6accdc2523db6d0edc5be77ba55
Reviewed-on: https://boringssl-review.googlesource.com/5468
Reviewed-by: Adam Langley <agl@google.com>
2015-07-21 21:45:07 +00:00
Adam Langley
33ad2b59da Tidy up extensions stuff and drop fastradio support.
Fastradio was a trick where the ClientHello was padding to at least 1024
bytes in order to trick some mobile radios into entering high-power mode
immediately. After experimentation, the feature is being dropped.

This change also tidies up a bit of the extensions code now that
everything is using the new system.

Change-Id: Icf7892e0ac1fbe5d66a5d7b405ec455c6850a41c
Reviewed-on: https://boringssl-review.googlesource.com/5466
Reviewed-by: Adam Langley <agl@google.com>
2015-07-21 21:44:55 +00:00
Adam Langley
391250d255 Convert the SRTP extension to the new system
Change-Id: I12f1d06562c34d357d82bbde7e5d0c15096046e6
Reviewed-on: https://boringssl-review.googlesource.com/5463
Reviewed-by: Adam Langley <agl@google.com>
2015-07-21 21:44:22 +00:00
Adam Langley
49c7af1c42 Convert the Channel ID extension to the new system.
This also removes support for the “old” Channel ID extension.

Change-Id: I1168efb9365c274db6b9d7e32013336e4404ff54
Reviewed-on: https://boringssl-review.googlesource.com/5462
Reviewed-by: Adam Langley <agl@google.com>
2015-07-21 21:44:11 +00:00
David Benjamin
209b256223 Fix o2i_ECPublicKey documentation.
It's not DER and always parses the entire thing.

Change-Id: Idb4b8b93d5bc3689d8c3ea34c38b529e50a4af61
Reviewed-on: https://boringssl-review.googlesource.com/5451
Reviewed-by: Adam Langley <agl@google.com>
2015-07-20 20:39:43 +00:00
David Benjamin
7315251d4e Replace cpuid assembly with C code.
Rather, take a leaf out of Chromium's book and use MSVC's __cpuid and
_xgetbv built-in, with an inline assembly emulated version for other
compilers.

This preserves the behavior of the original assembly with the following
differences:

- CPUs without cpuid aren't support. Chromium's base/cpu.cc doesn't
  check, and SSE2 support is part of our baseline; the perlasm code
  is always built with OPENSSL_IA32_SSE2.

- The clear_xmm block in cpu-x86-asm.pl is removed. This was used to
  clear some XMM-using features if OSXSAVE was set but XCR0 reports the
  OS doesn't use XSAVE to store SSE state. This wasn't present in the
  x86_64 and seems wrong. Section 13.5.2 of the Intel manual, volume 1,
  explicitly says SSE may still be used in this case; the OS may save
  that state in FXSAVE instead. A side discussion on upstream's RT#2633
  agrees.

- The old code ran some AMD CPUs through the "intel" codepath and some
  went straight to "generic" after duplicating some, but not all, logic.
  The AMD copy didn't clear some reserved bits and didn't query CPUID 7
  for AVX2 support. This is moot since AMD CPUs today don't support
  AVX2, but it seems they're expected to in the future?

- Setting bit 10 is dropped. This doesn't appear to be queried anywhere,
  was 32-bit only, and seems a remnant of upstream's
  14e21f863a3e3278bb8660ea9844e92e52e1f2f7.

Change-Id: I0548877c97e997f7beb25e15f3fea71c68a951d2
Reviewed-on: https://boringssl-review.googlesource.com/5434
Reviewed-by: Adam Langley <agl@google.com>
2015-07-20 18:59:44 +00:00
David Benjamin
c3717f4a00 Extra documentation.
Some other reserved bits are repurposed. Also explicitly mention that
bit 20 is zero (formerly RC4_CHAR), so it's not accidentally repurposed
later.

Change-Id: Idc4b32efe089ae7b7295472c4488f75258b7f962
Reviewed-on: https://boringssl-review.googlesource.com/5432
Reviewed-by: Adam Langley <agl@google.com>
2015-07-16 21:05:24 +00:00
David Benjamin
207bb4391f ERR_LIB_USER should be the last error.
Consumers sometimes use ERR_LIB_USER + <favorite number> instead of
ERR_get_next_error_library. To avoid causing them grief, keep ERR_LIB_USER
last.

Change-Id: Id19ae7836c41d5b156044bd20d417daf643bdda2
Reviewed-on: https://boringssl-review.googlesource.com/5290
Reviewed-by: Adam Langley <agl@google.com>
2015-07-16 02:03:03 +00:00
David Benjamin
3570d73bf1 Remove the func parameter to OPENSSL_PUT_ERROR.
Much of this was done automatically with
  find . -name '*.c' | xargs sed -E -i '' -e 's/(OPENSSL_PUT_ERROR\([a-zA-Z_0-9]+, )[a-zA-Z_0-9]+, ([a-zA-Z_0-9]+\);)/\1\2/'
  find . -name '*.c' | xargs sed -E -i '' -e 's/(OPENSSL_PUT_ERROR\([a-zA-Z_0-9]+, )[a-zA-Z_0-9]+,  ([a-zA-Z_0-9]+\);)/\1\2/'

BUG=468039

Change-Id: I4c75fd95dff85ab1d4a546b05e6aed1aeeb499d8
Reviewed-on: https://boringssl-review.googlesource.com/5276
Reviewed-by: Adam Langley <agl@google.com>
2015-07-16 02:02:37 +00:00
David Benjamin
34248d4cb7 Get rid of err function codes.
Running make_errors.go every time a function is renamed is incredibly
tedious. Plus we keep getting them wrong.

Instead, sample __func__ (__FUNCTION__ in MSVC) in the OPENSSL_PUT_ERROR macro
and store it alongside file and line number. This doesn't change the format of
ERR_print_errors, however ERR_error_string_n now uses the placeholder
"OPENSSL_internal" rather than an actual function name since that only takes
the uint32_t packed error code as input.

This updates err scripts to not emit the function string table. The
OPENSSL_PUT_ERROR invocations, for now, still include the extra
parameter. That will be removed in a follow-up.

BUG=468039

Change-Id: Iaa2ef56991fb58892fa8a1283b3b8b995fbb308d
Reviewed-on: https://boringssl-review.googlesource.com/5275
Reviewed-by: Adam Langley <agl@google.com>
2015-07-16 02:02:08 +00:00
David Benjamin
723f3534ff Fix shared library build.
poly1305.h was missing exports. While here, chacha.h should also be exported.

Change-Id: I5da9c953d3e5a5ef76a3e96bc4794192abee3ae6
Reviewed-on: https://boringssl-review.googlesource.com/5420
Reviewed-by: Adam Langley <agl@google.com>
2015-07-10 18:59:49 +00:00
David Benjamin
0851f67480 Add standalone tests for Poly1305.
RFC 7359 includes tests for various edge cases. Also, as
CRYPTO_poly1305_update can be used single-shot and streaming, we should
explicitly stress both.

Change-Id: Ie44c203a77624be10397ad05f06ca98d937db76f
Reviewed-on: https://boringssl-review.googlesource.com/5410
Reviewed-by: Adam Langley <agl@google.com>
2015-07-10 18:44:01 +00:00
Adam Langley
2e857bdad3 Convert the signature algorithms extension to the new system
Change-Id: Ia53b434acd11e9d2b0151b967387d86745ae441f
Reviewed-on: https://boringssl-review.googlesource.com/5362
Reviewed-by: Adam Langley <agl@google.com>
2015-07-09 23:12:51 +00:00
David Benjamin
d822ed811a Make CBB_len return a length, not remaining.
It switched from CBB_remaining to CBB_len partway through review, but
the semantics are still CBB_remaining. Using CBB_len allows the
len_before/len_after logic to continue working even if, in the future,
handshake messages are built on a non-fixed CBB.

Change-Id: Id466bb341a14dbbafcdb26e4c940a04181f2787d
Reviewed-on: https://boringssl-review.googlesource.com/5371
Reviewed-by: Adam Langley <agl@google.com>
2015-07-09 19:20:09 +00:00
David Benjamin
74f711083d Parse RSAPrivateKey with CBS.
This removes the version field from RSA and instead handles versioning
as part of parsing. (As a bonus, we now correctly limit multi-prime RSA
to version 1 keys.)

Most consumers are also converted. old_rsa_priv_{de,en}code are left
alone for now. Those hooks are passed in parameters which match the old
d2i/i2d pattern (they're only used in d2i_PrivateKey and
i2d_PrivateKey).

Include a test which, among other things, checks that public keys being
serialized as private keys are handled properly.

BUG=499653

Change-Id: Icdd5f0382c4a84f9c8867024f29756e1a306ba08
Reviewed-on: https://boringssl-review.googlesource.com/5273
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 22:50:53 +00:00
David Benjamin
c0e245a546 Parse RSAPublicKey with CBS.
BUG=499653

Change-Id: If5d98ed23e65a84f9f0e303024f91cce078f3d18
Reviewed-on: https://boringssl-review.googlesource.com/5272
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 22:39:28 +00:00
David Benjamin
87897a8cea Implement ECDSA_SIG_{parse,marshal} with crypto/bytestring.
This is the first structure to be implemented with the new BIGNUM ASN.1
routines. Object reuse in the legacy d2i/i2d functions is implemented by
releasing whatever was in *out before and setting it to the
newly-allocated object. As with the new d2i_SSL_SESSION, this is a
weaker form of object reuse, but should suffice for reasonable callers.

As ECDSA_SIG is more likely to be parsed alone than as part of another
structure (and using CBB is slightly tedious), add convenient functions
which take byte arrays. For consistency with SSL_SESSION, they are named
to/from_bytes. from_bytes, unlike the CBS variant, rejects trailing
data.

Note this changes some test expectations: BER signatures now push an
error code. That they didn't do this was probably a mistake.

BUG=499653

Change-Id: I9ec74db53e70d9a989412cc9e2b599be0454caec
Reviewed-on: https://boringssl-review.googlesource.com/5269
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 02:28:42 +00:00
David Benjamin
f3cdc5030e Remove some unused constants.
This is certainly far from exhaustive, but get rid of these.

Change-Id: Ie96925bcd452873ed8399b68e1e71d63e5a0929b
Reviewed-on: https://boringssl-review.googlesource.com/5357
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:56:38 +00:00
David Benjamin
11c0f8e54c Promote certificate-related ctrl macros to functions.
Also document them in the process. Almost done!

BUG=404754

Change-Id: I3333c7e9ea6b4a4844f1cfd02bff8b5161b16143
Reviewed-on: https://boringssl-review.googlesource.com/5355
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:55:39 +00:00
David Benjamin
7481d39bf7 Document APIs relating to configuring certificates and private keys.
The APIs that are CTRL macros will be documented (and converted to
functions) in a follow-up.

Change-Id: I7d086db1768aa3c16e8d7775b0c818b72918f4c2
Reviewed-on: https://boringssl-review.googlesource.com/5354
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:52:39 +00:00
David Benjamin
b2a9d6ab78 Remove SSL_build_cert_chain.
This is unused. It seems to be distinct from the automatic chain
building and was added in 1.0.2. Seems to be an awful lot of machinery
that consumers ought to configure anyway.

BUG=486295

Change-Id: If3d4a2761f61c5b2252b37d4692089112fc0ec21
Reviewed-on: https://boringssl-review.googlesource.com/5353
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:23:18 +00:00
David Benjamin
4462809623 Remove SSL_CTX_select_current_cert.
Without certificate slots this function doesn't do anything. It's new in
1.02 and thus unused, so get rid of it rather than maintain a
compatibility stub.

BUG=486295

Change-Id: I798fce7e4307724756ad4e14046f1abac74f53ed
Reviewed-on: https://boringssl-review.googlesource.com/5352
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:22:32 +00:00
David Benjamin
d1d8078025 Fold away certificate slots mechanism.
This allows us to remove the confusing EVP_PKEY argument to the
SSL_PRIVATE_KEY_METHOD wrapper functions. It also simplifies some of the
book-keeping around the CERT structure, as well as the API for
configuring certificates themselves. The current one is a little odd as
some functions automatically route to the slot while others affect the
most recently touched slot. Others still (extra_certs) apply to all
slots, making them not terribly useful.

Consumers with complex needs should use cert_cb or the early callback
(select_certificate_cb) to configure whatever they like based on the
ClientHello.

BUG=486295

Change-Id: Ice29ffeb867fa4959898b70dfc50fc00137f01f3
Reviewed-on: https://boringssl-review.googlesource.com/5351
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:22:13 +00:00
David Benjamin
570364800c Remove SSL_CTX_get_extra_chain_certs_only.
This is in preparation for folding away certificate slots. extra_certs
and the slot-specific certificate chain will be the same.
SSL_CTX_get_extra_chain_certs already falls back to the slot-specific
chain if missing. SSL_CTX_get_extra_chain_certs_only is similar but
never falls back. This isn't very useful and is confusing with them
merged, so remove it.

BUG=486295

Change-Id: Ic708105bcf453dfe4e1969353d7eb7547ed2981b
Reviewed-on: https://boringssl-review.googlesource.com/5350
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:16:20 +00:00
David Benjamin
0fc431a0d7 Prune NIDs from TLS_SIGALGS.
There's no need to store more than the TLS values.

Change-Id: I1a93c7c6aa3254caf7cc09969da52713e6f8acf4
Reviewed-on: https://boringssl-review.googlesource.com/5348
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:14:40 +00:00
David Benjamin
ba16a1e405 Remove SSL_get_(shared_)sigalgs.
These are new as of 1.0.2, not terribly useful of APIs, and are the only
reason we have to retain so many NIDs in the TLS_SIGALGS structure.

Change-Id: I7237becca09acc2ec2be441ca17364f062253893
Reviewed-on: https://boringssl-review.googlesource.com/5347
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:12:24 +00:00
David Benjamin
1504304147 Remove dead SRP SSL_CTRL values.
Change-Id: Id2d3a2a0a3826566376bac2efeefbb54fc55d227
Reviewed-on: https://boringssl-review.googlesource.com/5344
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:11:30 +00:00
David Benjamin
7d97fd3a91 Remove SSL_get_server_tmp_key.
It's never used and is partially broken right now; EVP_PKEY_DH doesn't
work.

Change-Id: Id6262cd868153ef731e3f4d679b2ca308cfb12a3
Reviewed-on: https://boringssl-review.googlesource.com/5343
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 01:11:10 +00:00
David Benjamin
b9c579db6d Add crypto/bytestring-based BIGNUM DER functions.
RSA and ECDSA will both require being able to convert ASN.1 INTEGERs to
and from DER. Don't bother handling negative BIGNUMs for now. It doesn't
seem necessary and saves bothering with two's-complement vs
sign-and-magnitude.

BUG=499653

Change-Id: I1e80052067ed528809493af73b04f82539d564ff
Reviewed-on: https://boringssl-review.googlesource.com/5268
Reviewed-by: Adam Langley <agl@google.com>
2015-07-07 00:47:39 +00:00
Matt Braithwaite
6a1275b627 typedef |COMP_METHOD| to void, for compatibility.
Change-Id: I2965c0d698e25f4eb08ddd9fc000b0e4adf6f2c0
Reviewed-on: https://boringssl-review.googlesource.com/5240
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 21:49:06 +00:00
Håvard Molland
047d6f0f4d Remove ssl2.h and ssl23.h.
The SSL23_ST_foo macros are only used in ssl_stat.c.
However, these states are never set and can be removed.

Move the two remaining SSLv2 client hello record macros to ssl3.h

Change-Id: I76055405a9050cf873b4d1cbc689e54dd3490b8a
Reviewed-on: https://boringssl-review.googlesource.com/4160
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 21:47:01 +00:00
David Benjamin
cce5a98efb Remove EVP_PKEY_dup.
All callers have been moved to EVP_PKEY_up_ref. (Neither spelling exists
upstream so we only had our own callers to move.)

Change-Id: I267f14054780fe3d6dc1170b7b6ae3811a0d1a9a
Reviewed-on: https://boringssl-review.googlesource.com/5291
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 21:38:39 +00:00
David Benjamin
deedad1238 Fix documentation typo.
Change-Id: Iaa05acf1f775b0b35cc99e5f2c048f4e70f0a899
Reviewed-on: https://boringssl-review.googlesource.com/5300
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 21:33:29 +00:00
David Benjamin
a8653208ec Add CBB_zero to set a CBB to the zero state.
One tedious thing about using CBB is that you can't safely CBB_cleanup
until CBB_init is successful, which breaks the general 'goto err' style
of cleanup. This makes it possible:

  CBB_zero ~ EVP_MD_CTX_init
  CBB_init ~ EVP_DigestInit
  CBB_cleanup ~ EVP_MD_CTX_cleanup

Change-Id: I085ecc4405715368886dc4de02285a47e7fc4c52
Reviewed-on: https://boringssl-review.googlesource.com/5267
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 19:45:43 +00:00
David Benjamin
7e5f5944c8 Document i2d_PublicKey better.
The name is confusing. EC keys aren't serialized to DER.

DSA keys are also weird, but left alone for now. i2d_DSAPublicKey either
serializes to a DSAPublicKey per RFC 3279 if write_params is 0 or what
seems to be an OpenSSL-specific format that includes the group if
write_params is 1. See upstream's
ea6b07b54c1f8fc2275a121cdda071e2df7bd6c1.

Change-Id: I0d15140acc2d688a563b615fc6a9e3abec929753
Reviewed-on: https://boringssl-review.googlesource.com/5261
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 19:35:26 +00:00
David Benjamin
507b819304 Use typedef names in evp.h.
They're all forward-declared. There's no need to use the struct names.

Change-Id: I435ae2f5971128f08c730317ca644d97239f3b54
Reviewed-on: https://boringssl-review.googlesource.com/5260
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 19:33:44 +00:00
David Benjamin
e3aa1d9dd4 Cleanup ticket processing and session lookup.
Use more sensible variable names. Also move some work between the helpers and
s3_srvr.c a little; the session lookup functions now only return a new session.
Whether to send a ticket is now an additional output to avoid the enum
explosion around renewal. The actual SSL state is not modified.

This is somewhat cleaner as s3_srvr.c may still reject a session for other
reasons, so we avoid setting ssl->session and ssl->verify_result to a session
that wouldn't be used. (They get fixed up in ssl_get_new_session, so it didn't
actually matter.)

Change-Id: Ib52fabbe993b5e2b7408395a02cdea3dee66df7b
Reviewed-on: https://boringssl-review.googlesource.com/5235
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 19:33:23 +00:00
Adam Langley
5021b223d8 Convert the renegotiation extension to the new system.
This change also switches the behaviour of the client. Previously the
client would send the SCSV rather than the extension, but now it'll only
do that for SSLv3 connections.

Change-Id: I67a04b8abbef2234747c0dac450458deb6b0cd0a
Reviewed-on: https://boringssl-review.googlesource.com/5143
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 19:30:53 +00:00
Adam Langley
614c66a2f8 Add infrastructure for better extension handling.
Rather than four massive functions that handle every extension,
organise the code by extension with four smaller functions for each.

Change-Id: I876b31dacb05aca9884ed3ae7c48462e6ffe3b49
Reviewed-on: https://boringssl-review.googlesource.com/5142
Reviewed-by: Adam Langley <agl@google.com>
2015-07-01 18:25:28 +00:00
David Benjamin
de24aadc5b Add RAND_set_urandom_fd.
Chromium uses a zygote process and a sandbox on Linux. In order for RAND_bytes
to be functional and guaranteed fork-safe inside the renderers, /dev/urandom
must be prewarmed. Calling RAND_bytes initializes a thread-local ChaCha20 key
when rdrand is available. So that key is fork-safe and to avoid tempting any
dragons by touching pthreads APIs before a non-exec fork, add a
RAND_set_urandom_fd API. It allows the consumer to supply the /dev/urandom fd
and promises to be fork-safe, both in initializing key material and use of
pthreads.

This doesn't affect any current shipping versions of Chrome.

BUG=462040

Change-Id: I1037e21e525918971380e4ea1371703c8237a0b0
Reviewed-on: https://boringssl-review.googlesource.com/5302
Reviewed-by: Adam Langley <agl@google.com>
2015-06-30 21:41:42 +00:00
David Benjamin
daeafc22c6 Move the session ticket functions to ssl.h.
Having them spread between ssl.h and tls1.h isn't terribly enlightening.

Change-Id: I5fec4b8e5260312b22bcef21bd4db7a8a8149ad8
Reviewed-on: https://boringssl-review.googlesource.com/5234
Reviewed-by: Adam Langley <agl@google.com>
2015-06-25 22:40:38 +00:00
David Benjamin
6cacac033b Promote SSL_CTX_[gs]et_tlsext_ticket_keys to functions.
BUG=404754

Change-Id: Iae75a7ab24d4aa3b30edf578cbfc1058aeadd863
Reviewed-on: https://boringssl-review.googlesource.com/5233
Reviewed-by: Adam Langley <agl@google.com>
2015-06-25 22:39:36 +00:00
David Benjamin
cb3872f546 Sort the preprocessor compatibility section.
Using the original numerical order made more sense before they were changed to
doesnt_exist.

BUG=404754

Change-Id: I2971eff7c6fbe7c5d340b103de71bbfa180f1f96
Reviewed-on: https://boringssl-review.googlesource.com/5232
Reviewed-by: Adam Langley <agl@google.com>
2015-06-25 22:36:37 +00:00
David Benjamin
65ee9b7ce9 Remove EVP_PKEY_HMAC.
This removes EVP_PKEY_HMAC and all the support code around it. EVP_MD requires
a lot of extra glue to support HMAC. This lets us prune it all away.

As a bonus, it removes a (minor) dependency from EVP to the legacy ASN.1 stack.

Change-Id: I5a9e3e39f518429828dbf13d14647fb37d9dc35a
Reviewed-on: https://boringssl-review.googlesource.com/5120
Reviewed-by: Adam Langley <agl@google.com>
2015-06-25 00:03:02 +00:00
Adam Langley
a59347eb4c RAND_set_rand_method takes a const parameter.
Change-Id: I37e7c00deeb74aa0b71ee0d3a242d33d4d413cf0
2015-06-24 17:02:15 -07:00
Matt Braithwaite
3e5e99d834 Dummy |RAND_set_rand_method|, |RAND_egd|, and |RAND_SSLeay|.
Change-Id: Ide555c77748b4ba8106f69b037e5ff78d81a56dc
Reviewed-on: https://boringssl-review.googlesource.com/5220
Reviewed-by: Adam Langley <agl@google.com>
2015-06-24 23:53:29 +00:00
Matt Braithwaite
50365f25ba Restore |DES_ede3_cfb_encrypt| and |DES_ede3_cfb64_encrypt| from OpenSSL at ce7e647b.
Change-Id: I7ab7ea3cdabc697b2945a50c8d8f349d6b408848
Reviewed-on: https://boringssl-review.googlesource.com/5211
Reviewed-by: Adam Langley <agl@google.com>
2015-06-24 01:33:31 +00:00
Matt Braithwaite
c0fe12cdf7 Restore |X509_REQ_print| and friends, from OpenSSL at ce7e647b.
Change-Id: Id388510834ac30b0dbccfef0b8276f57656f1dfd
Reviewed-on: https://boringssl-review.googlesource.com/5210
Reviewed-by: Adam Langley <agl@google.com>
2015-06-23 22:36:52 +00:00
Matt Braithwaite
4cd4edfc34 Restore |ERR_print_errors()|.
Change-Id: If289c4aa2804727d6c5e8386b5a2b559cf006415
Reviewed-on: https://boringssl-review.googlesource.com/5152
Reviewed-by: Adam Langley <agl@google.com>
2015-06-23 21:41:24 +00:00
Matt Braithwaite
1cb49cd2ac Restore |RSA_generate_key()| from OpenSSL at b4f0d1a.
The callback arguments are required to be NULL.

Change-Id: I266ec46efdaca411a7f0c2b645883b2c5bec1c96
Reviewed-on: https://boringssl-review.googlesource.com/5160
Reviewed-by: Adam Langley <agl@google.com>
2015-06-23 21:37:49 +00:00
Matt Braithwaite
e17d45f069 Restore |BIO_f_base64| from OpenSSL at b4f0d1a, modulo style fixes.
Change-Id: Ia7f4f4f6d063d882cf3d3ac0f5f33ad8d8cd9875
Reviewed-on: https://boringssl-review.googlesource.com/5151
Reviewed-by: Adam Langley <agl@google.com>
2015-06-23 21:20:04 +00:00
David Benjamin
50f54e2a5f AEADs don't go through ENGINE.
They'll probably stay that way too, so document it as being an ignored
parameter.

Change-Id: Iff385715f5413290a7186c38ea9ef2dd4fce9b38
Reviewed-on: https://boringssl-review.googlesource.com/5175
Reviewed-by: Adam Langley <agl@google.com>
2015-06-22 23:59:40 +00:00
David Benjamin
ba4594aee6 Don't put sessions from renegotiations in the cache.
Rather than rely on Chromium to query SSL_initial_handshake_complete in the
callback (which didn't work anyway because the callback is called afterwards),
move the logic into BoringSSL. BoringSSL already enforces that clients never
offer resumptions on renegotiation (it wouldn't work well anyway as client
session cache lookup is external), so it's reasonable to also implement
in-library that sessions established on a renegotiation are not cached.

Add a bunch of tests that new_session_cb is called when expected.

BUG=501418

Change-Id: I42d44c82b043af72b60a0f8fdb57799e20f13ed5
Reviewed-on: https://boringssl-review.googlesource.com/5171
Reviewed-by: Adam Langley <agl@google.com>
2015-06-18 23:40:51 +00:00
Adam Langley
6b40394638 Revert "Restore ocsp.h, with (just) the CRLReason enum from RFC 2459."
This reverts commit d213885c04.

It's in x509v3.h under the name |CRL_REASON_*|.
2015-06-18 16:16:05 -07:00
Matt Braithwaite
d213885c04 Restore ocsp.h, with (just) the CRLReason enum from RFC 2459.
Change-Id: If4e53858b5c6ab4467da50fb24f1fad6974b49f3
Reviewed-on: https://boringssl-review.googlesource.com/5154
Reviewed-by: Adam Langley <agl@google.com>
2015-06-18 23:07:38 +00:00
David Benjamin
7244fa46f7 Expose ECDSA_SIG_max_len to size a DER ECDSA-Sig-Value.
Also implement it without reference to crypto/asn1 or fake ASN1_INTEGERs and
add a test. Some platform crypto APIs only give back the key size, and not the
encoded signature length. No sense in implementing it twice.

BUG=347404,499653

Change-Id: I9aa27d52674375f8b036e57bb5850f091c9b25dd
Reviewed-on: https://boringssl-review.googlesource.com/5080
Reviewed-by: Adam Langley <agl@google.com>
2015-06-18 22:23:12 +00:00
David Benjamin
b4d65fda70 Implement asynchronous private key operations for client auth.
This adds a new API, SSL_set_private_key_method, which allows the consumer to
customize private key operations. For simplicity, it is incompatible with the
multiple slots feature (which will hopefully go away) but does not, for now,
break it.

The new method is only routed up for the client for now. The server will
require a decrypt hook as well for the plain RSA key exchange.

BUG=347404

Change-Id: I35d69095c29134c34c2af88c613ad557d6957614
Reviewed-on: https://boringssl-review.googlesource.com/5049
Reviewed-by: Adam Langley <agl@google.com>
2015-06-18 22:14:51 +00:00
David Benjamin
680ca961f9 Preserve session->sess_cert on ticket renewal.
Turns out the safer/simpler method still wasn't quite right. :-)
session->sess_cert isn't serialized and deserialized, which is poor. Duplicate
it manually for now. Leave a TODO to get rid of that field altogether as it's
not especially helpful. The certificate-related fields should be in the
session. The others probably have no reason to be preserved on resumptions at
all.

Test by making bssl_shim.cc assert the peer cert chain is there or not as
expected.

BUG=501220

Change-Id: I44034167629720d6e2b7b0b938d58bcab3ab0abe
Reviewed-on: https://boringssl-review.googlesource.com/5170
Reviewed-by: Adam Langley <agl@google.com>
2015-06-18 17:53:57 +00:00
David Benjamin
d65bb78c6c Add SSL_initial_handshake_complete.
To account for the changes in ticket renewal, Chromium will need to listen for
new_session_cb to determine whether the handshake produced a new session.
Chromium currently never caches sessions produced on a renegotiation. To retain
that behavior, it'll need to know whether new_session_cb is initial or not.
Rather than maintain duplicate state and listen for SSL_HANDSHAKE_DONE, it's
simpler to just let it query ssl->s3->initial_handshake_complete.

BUG=501418

Change-Id: Ib2f2541460bd09cf16106388e9cfdf3662e02681
Reviewed-on: https://boringssl-review.googlesource.com/5126
Reviewed-by: Adam Langley <agl@google.com>
2015-06-18 17:46:33 +00:00
David Benjamin
b0acb7743f Export pkcs1_prefixed_msg as RSA_add_pkcs1_prefix.
Platform crypto APIs for PKCS#1 RSA signatures vary between expecting the
caller to prepend the DigestInfo prefix (RSA_sign_raw) and prepending it
internally (RSA_sign). Currently, Chromium implements sign or sign_raw as
appropriate. To avoid needing both variants, the new asynchronous methods will
only expose the higher-level one, sign.

To satisfy ports which previously implemented sign_raw, expose the DigestInfo
prefix as a utility function.

BUG=347404

Change-Id: I04c397b5e9502b2942f6698ecf81662a3c9282e6
Reviewed-on: https://boringssl-review.googlesource.com/4940
Reviewed-by: Adam Langley <agl@google.com>
2015-06-16 19:09:45 +00:00
David Benjamin
95d3182576 Duplicate SSL_SESSIONs when renewing them.
See also upstream's 27c76b9b8010b536687318739c6f631ce4194688, CVE-2015-1791.
Rather than write a dup function, serializing and deserializing the object is
simpler. It also fixes a bug in the original fix where it never calls
new_session_cb to store the new session (for clients which use that callback;
how clients should handle the session cache is much less clear).

The old session isn't pruned as we haven't processed the Finished message yet.
RFC 5077 says:

   The server MUST NOT assume that the client actually received the updated
   ticket until it successfully verifies the client's Finished message.

Moreover, because network messages are asynchronous, a new SSL connection may
have began just before the client received the new ticket, so any such servers
are broken regardless.

Change-Id: I13b3dc986dc58ea2ce66659dbb29e14cd02a641b
Reviewed-on: https://boringssl-review.googlesource.com/5122
Reviewed-by: Adam Langley <agl@google.com>
2015-06-16 18:15:12 +00:00
David Benjamin
fd67aa8c95 Add SSL_SESSION_from_bytes.
Mirrors SSL_SESSION_to_bytes. It avoids having to deal with object-reuse, the
non-size_t length parameter, and trailing data. Both it and the object-reuse
variant back onto an unexposed SSL_SESSION_parse which reads a CBS.

Note that this changes the object reuse story slightly. It's now merely an
optional output pointer that frees its old contents. No d2i_SSL_SESSION
consumer in Google that's built does reuse, much less reuse with the assumption
that the top-level object won't be overridden.

Change-Id: I5cb8522f96909bb222cab0f342423f2dd7814282
Reviewed-on: https://boringssl-review.googlesource.com/5121
Reviewed-by: Adam Langley <agl@google.com>
2015-06-16 18:12:39 +00:00
Adam Langley
cc7e11f2af Define OPENSSL_64_BIT for PowerPC chips.
We had aarch64 handled twice, which was a mistake.

Change-Id: Id27fc86cb701a87c11c54b98534108f87e49262d
Reviewed-on: https://boringssl-review.googlesource.com/5131
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-06-16 18:09:33 +00:00
David Benjamin
1c703cb0c1 Check for BN_copy failures.
BN_copy can fail on malloc failure. The case in crypto/rsa was causing the
malloc tests in all_tests.go to infinite loop.

Change-Id: Id5900512013fba9960444d78a8c056aa4314fb2d
Reviewed-on: https://boringssl-review.googlesource.com/5110
Reviewed-by: Adam Langley <agl@google.com>
2015-06-15 17:52:40 +00:00
Kenny Root
3a9e1fba0e Correct various documentation typos
Some of the documentation had the right explanation but the incorrect
function names attached.

Change-Id: I7b479dae6d71a5ac7bc86df5a3890508c3b3d09f
Reviewed-on: https://boringssl-review.googlesource.com/5090
Reviewed-by: Adam Langley <agl@google.com>
2015-06-10 22:06:01 +00:00
Adam Langley
85bc5601ee Add ECDHE-PSK-AES{128,256}-SHA cipher suites.
If we're going to have PSK and use standard cipher suites, this might be
the best that we can do for the moment.

Change-Id: I35d9831b2991dc5b23c9e24d98cdc0db95919d39
Reviewed-on: https://boringssl-review.googlesource.com/5052
Reviewed-by: Adam Langley <agl@google.com>
2015-06-09 18:10:42 +00:00
Adam Langley
1feb42a2fb Drop ECDHE-PSK-AES-128-GCM.
This is the best PSK cipher suite, but it's non-standard and nobody is
using it. Trivial to bring back in the future if we have need of it.

Change-Id: Ie78790f102027c67d1c9b19994bfb10a2095ba92
Reviewed-on: https://boringssl-review.googlesource.com/5051
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-06-09 18:08:52 +00:00
David Benjamin
24f346d77b Limit the number of warning alerts silently consumed.
Per review comments on
https://boringssl-review.googlesource.com/#/c/4112/.

Change-Id: I82cacf67c6882e64f6637015ac41945522699797
Reviewed-on: https://boringssl-review.googlesource.com/5041
Reviewed-by: Adam Langley <agl@google.com>
2015-06-08 22:16:14 +00:00
David Benjamin
a8ebe2261f Add tests for empty record limit and make it work in the async case.
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>
2015-06-08 21:45:21 +00:00
Adam Langley
521d4b805a Export |CBS_get_any_ber_asn1_element|.
We have need of it internally.

Change-Id: I564af468728b22245e8eab384ea7018b7e88cc86
Reviewed-on: https://boringssl-review.googlesource.com/5022
Reviewed-by: Matt Braithwaite <mab@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2015-06-05 21:56:42 +00:00
Adam Langley
e3ed21058d Add #defines for ASN.1 NULL and GENERALIZEDTIME.
Change-Id: Ic82ab5de4e231cdf6230ee7262c3c7539404d4a6
Reviewed-on: https://boringssl-review.googlesource.com/5020
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-06-05 18:59:50 +00:00
Adam Langley
839b881c61 Multi-prime RSA support.
RSA with more than two primes is specified in
https://tools.ietf.org/html/rfc3447, although the idea goes back far
earier than that.

This change ports some of the changes in
http://rt.openssl.org/Ticket/Display.html?id=3477&user=guest&pass=guest
to BoringSSL—specifically those bits that are under an OpenSSL license.

Change-Id: I51e8e345e2148702b8ce12e00518f6ef4683d3e1
Reviewed-on: https://boringssl-review.googlesource.com/4870
Reviewed-by: Adam Langley <agl@google.com>
2015-06-05 18:39:44 +00:00
Adam Langley
af0e32cb84 Add SSL_get_tls_unique.
SSL_get_tls_unique returns the tls-unique channel-binding value as
defined in https://tools.ietf.org/html/rfc5929#section-3.1.

Change-Id: Id9644328a7db8a91cf3ff0deee9dd6ce0d3e00ba
Reviewed-on: https://boringssl-review.googlesource.com/4984
Reviewed-by: Adam Langley <agl@google.com>
2015-06-04 22:10:22 +00:00
Adam Langley
cc1e3df75c Make CBS_get_any_asn1_element accept only DER.
This change makes |CBS_get_any_asn1_element| only handle DER elements.
Another function, |CBS_get_any_ber_asn1_element| is exposed internally
for the cases where we need to process BER data.

Change-Id: I544141a1a3d7913986352a8fd9a6d00b9f282652
Reviewed-on: https://boringssl-review.googlesource.com/4994
Reviewed-by: Adam Langley <agl@google.com>
2015-06-03 22:08:16 +00:00
Adam Langley
ba5934b77f Tighten up EMS resumption behaviour.
The client and server both have to decide on behaviour when resuming a
session where the EMS state of the session doesn't match the EMS state
as exchanged in the handshake.

                        Original handshake
      |  No                                         Yes
------+--------------------------------------------------------------
      |
R     |  Server: ok [1]                     Server: abort [3]
e  No |  Client: ok [2]                     Client: abort [4]
s     |
u     |
m     |
e     |
  Yes |  Server: don't resume                   No problem
      |  Client: abort; server
      |    shouldn't have resumed

[1] Servers want to accept legacy clients. The draft[5] says that
resumptions SHOULD be rejected so that Triple-Handshake can't be done,
but we'll rather enforce that EMS was used when using tls-unique etc.

[2] The draft[5] says that even the initial handshake should be aborted
if the server doesn't support EMS, but we need to be able to talk to the
world.

[3] This is a very weird case where a client has regressed without
flushing the session cache. Hopefully we can be strict and reject these.

[4] This can happen when a server-farm shares a session cache but
frontends are not all updated at once. If Chrome is strict here then
hopefully we can prevent any servers from existing that will try to
resume an EMS session that they don't understand. OpenSSL appears to be
ok here: https://www.ietf.org/mail-archive/web/tls/current/msg16570.html

[5] https://tools.ietf.org/html/draft-ietf-tls-session-hash-05#section-5.2

BUG=492200

Change-Id: Ie1225a3960d49117b05eefa5a36263d8e556e467
Reviewed-on: https://boringssl-review.googlesource.com/4981
Reviewed-by: Adam Langley <agl@google.com>
2015-06-03 22:05:50 +00:00
Matt Braithwaite
9f8ef2da92 Add |EVP_get_digestbyname|.
Change-Id: If7078ea68f037caf8e26fa0b714e96e64d50dfa9
Reviewed-on: https://boringssl-review.googlesource.com/5000
Reviewed-by: Adam Langley <agl@google.com>
2015-06-03 21:34:07 +00:00
Matt Braithwaite
b7326b0b43 Implement |PEM_def_callback| and call it where appropriate.
This implementation does not prompt for a password.  It's just enough
to ensure that the many functions that take a tuple of
|pem_password_cb| and a |void *| to a password work in a reasonable
way when the latter is non-NULL.

Change-Id: Ic6bfc484630c67b5ede25277e14eb3b00c2024f0
Reviewed-on: https://boringssl-review.googlesource.com/4990
Reviewed-by: Adam Langley <agl@google.com>
2015-06-03 17:58:44 +00:00
David Benjamin
e216288109 Unexport and prune EVP_MD_CTX flags.
The only flag is EVP_MD_CTX_FLAG_NO_INIT and no good can possibly come of
anyone outside EVP_PKEY_HMAC calling it. (And indeed no one calls it.
EVP_MD_CTX_set_flags has a caller in wpa_supplicant, but it uses
EVP_MD_CTX_FLAG_NON_FIPS_ALLOW which we don't define. The call is guarded by a
pair of ifdefs for some FIPS mode wpa_supplicant.)

Change-Id: I70ab8ffa646f3f75dfa4d37c96b9e82448ff1e40
Reviewed-on: https://boringssl-review.googlesource.com/4971
Reviewed-by: Adam Langley <agl@google.com>
2015-06-02 01:08:10 +00:00
David Benjamin
af8731f7a5 Remove HMAC_CTX_set_flags.
It's never called externally and for good reason; the only flag to set is
EVP_MD_CTX_FLAG_NO_INIT which is an implementation detail of EVP_PKEY_HMAC
(hopefully to be removed eventually). Indeed, only EVP_PKEY_HMAC ever calls
this function. Except there's no need to because the HMAC_CTX has already been
initialized at that point. (And were it not initialized, that call would not
bode well for the poor HMAC_CTX.)

The legacy EVP_PKEY_HMAC API has test coverage and still works after this
change.

Change-Id: I2fb0bede3c24ad1519f9433f957606de15ba86c7
Reviewed-on: https://boringssl-review.googlesource.com/4970
Reviewed-by: Adam Langley <agl@google.com>
2015-06-02 01:07:07 +00:00
David Benjamin
c933a47e6f Switch the ssl_write_bytes hook to ssl_write_app_data.
The SSL_PROTOCOL_METHOD table needs work, but this makes it clearer
exactly what the shared interface between the upper later and TLS/DTLS
is.

BUG=468889

Change-Id: I38931c484aa4ab3f77964d708d38bfd349fac293
Reviewed-on: https://boringssl-review.googlesource.com/4955
Reviewed-by: Adam Langley <agl@google.com>
2015-06-01 22:18:06 +00:00
David Benjamin
2c3679210e EVP_Digest*Update, EVP_DigestFinal, and HMAC_Update can never fail.
Enough code fails to check their return codes anyway. We ought to make
it official.

Change-Id: Ie646360fd7073ea943036f5e21bed13df7e1b77a
Reviewed-on: https://boringssl-review.googlesource.com/4954
Reviewed-by: Adam Langley <agl@google.com>
2015-06-01 22:17:10 +00:00
David Benjamin
e2375e139e Low-level hash 'final' functions cannot fail.
The SHA-2 family has some exceptions, but they're all programmer errors
and should be documented as such. (Are the failure cases even
necessary?)

Change-Id: I00bd0a9450cff78d8caac479817fbd8d3de872b8
Reviewed-on: https://boringssl-review.googlesource.com/4953
Reviewed-by: Adam Langley <agl@google.com>
2015-06-01 22:14:01 +00:00
Adam Langley
05ead68a0f Readd CRYPTO_{LOCK|UNLOCK|READ|WRITE}.
These defines are part of the the locking callbacks which have been
removed. However, code that still tries to provide locking callbacks
will need these values to compile.

The locking callback that such code tries to install will be ignored,
but that's harmless since BoringSSL handles locking itself now.

Change-Id: Ic84da8b52020ccd3ecc8913b4e41d366690c7649
2015-05-27 15:48:29 -07:00
Adam Langley
71106adf89 Add |BIO_read_asn1| to read a single ASN.1 object.
Android needs to be able to read a PKCS#7 blob from a Java
InputStream. This change adds |BIO_read_asn1| which reads a single
ASN.1 object from the start of a BIO without overreading.

Change-Id: I74776e686529c8e58af1c26a4909f9bd4e87b707
2015-05-27 15:21:56 -07:00
David Benjamin
b3a7b51f18 Fix off-by-one in BN_rand
If BN_rand is called with |bits| set to 1 and |top| set to 1 then a 1 byte
buffer overflow can occur.

See also upstream's efee575ad464bfb60bf72dcb73f9b51768f4b1a1. But rather than
making |BN_rand| fail, be consistent with the |bits| = 0 case and just don't
set the bits that don't exist. Add tests to ensure the degenerate cases behave.

Change-Id: I5e9fbe6fd8f7f7b2e011a680f2fbe6d7ed4dab65
Reviewed-on: https://boringssl-review.googlesource.com/4893
Reviewed-by: Adam Langley <agl@google.com>
2015-05-27 22:03:05 +00:00
David Benjamin
074cc04022 Reject negative shifts for BN_rshift and BN_lshift.
The functions BN_rshift and BN_lshift shift their arguments to the right or
left by a specified number of bits. Unpredicatable results (including
crashes) can occur if a negative number is supplied for the shift value.

Thanks to Mateusz Kocielski (LogicalTrust), Marek Kroemeke and Filip Palian
for discovering and reporting this issue.

(Imported from upstream's 7cc18d8158b5fc2676393d99b51c30c135502107.)

Change-Id: Ib9f5e410a46df3d7f02a61374807fba209612bd3
Reviewed-on: https://boringssl-review.googlesource.com/4892
Reviewed-by: Adam Langley <agl@google.com>
2015-05-27 21:59:35 +00:00
David Benjamin
5aea93e604 Deprecate and no-op SSL_VERIFY_CLIENT_ONCE.
This is documented as "Only request a client certificate on the initial TLS/SSL
handshake. Do not ask for a client certificate again in case of a
renegotiation." Server-side renegotiation is gone.

I'm not sure this flag has ever worked anyway, dating all the way back to
SSLeay 0.8.1b. ssl_get_new_session overwrites s->session, so the old
session->peer is lost.

Change-Id: Ie173243e189c63272c368a55167b8596494fd59c
Reviewed-on: https://boringssl-review.googlesource.com/4883
Reviewed-by: Adam Langley <agl@google.com>
2015-05-27 21:50:24 +00:00
David Benjamin
34a1635b3f Remove fake RLE compression OID.
(obj_dat.h and obj_mac.h are generated from the objects.txt change.)

See upstream's 3c161d081e2d30549e787437d05ffa08122a5114. Also see upstream's
12048657a91b12e499d03ec9ff406b42aba67366 to give zlib a better comment.

Change-Id: I86937f037f8e0f6179ba8072ccd972eca773c7ce
Reviewed-on: https://boringssl-review.googlesource.com/4882
Reviewed-by: Adam Langley <agl@google.com>
2015-05-27 21:49:39 +00:00
David Benjamin
9c0918fc3f Fix typo in objects.txt
See upstream's 8332f91cc0db4955259bca9f9138b5eff94d6e8c.

Change-Id: I293acba511e6f390204247787c951a9df08cae68
Reviewed-on: https://boringssl-review.googlesource.com/4881
Reviewed-by: Adam Langley <agl@google.com>
2015-05-27 21:49:08 +00:00
David Benjamin
74d8bc2503 Don't make SSL_MODE_*HELLO_TIME configurable.
Never send the time as a client. Always send it as a server.

Change-Id: I20c55078cfe199d53dc002f6ee5dd57060b086d5
Reviewed-on: https://boringssl-review.googlesource.com/4829
Reviewed-by: Adam Langley <agl@google.com>
2015-05-27 21:47:59 +00:00
Matt Braithwaite
444dce4934 Do-nothing fns |OpenSSL_add_all_ciphers| and |OpenSSL_add_all_digests|.
Change-Id: Ied2338f84e03ee1736152b82096335b78a256ca4
Reviewed-on: https://boringssl-review.googlesource.com/4850
Reviewed-by: Adam Langley <agl@google.com>
2015-05-21 21:07:48 +00:00
David Benjamin
ece089c3a3 Deprecate and no-op SSL_set_state.
Yes, OpenSSL lets you randomly change its internal state. This is used
as part of server-side renegotiation. Server-side renegotiation is gone.

BUG=429450

Change-Id: Ic1b013705734357acf64e8bf89a051b2b7521c64
Reviewed-on: https://boringssl-review.googlesource.com/4828
Reviewed-by: Adam Langley <agl@google.com>
2015-05-21 20:52:05 +00:00
David Benjamin
8ec88108d4 Remove SSL_in_before and SSL_ST_BEFORE.
It's never called and the state is meaningless now.

Change-Id: I5429ec3eb7dc2b789c0584ea88323f0ff18920ae
Reviewed-on: https://boringssl-review.googlesource.com/4826
Reviewed-by: Adam Langley <agl@google.com>
2015-05-21 20:51:06 +00:00
David Benjamin
cd90f3a241 Remove renegotiation deferral logic.
When the peer or caller requests a renegotiation, OpenSSL doesn't
renegotiate immediately. It sets a flag to begin a renegotiation as soon
as record-layer read and write buffers are clear. One reason is that
OpenSSL's record layer cannot write a handshake record while an
application data record is being written. The buffer consistency checks
around partial writes will break.

None of these cases are relevant for the client auth hack. We already
require that renego come in at a quiescent part of the application
protocol by forbidding handshake/app_data interleave.

The new behavior is now: when a HelloRequest comes in, if the record
layer is not idle, the renegotiation is rejected as if
SSL_set_reject_peer_renegotiations were set. Otherwise we immediately
begin the new handshake. The server may not send any application data
between HelloRequest and completing the handshake. The HelloRequest may
not be consumed if an SSL_write is pending.

Note this does require that Chromium's HTTP stack not attempt to read
the HTTP response until the request has been written, but the
renegotiation logic already assumes it. Were Chromium to drive the
SSL_read state machine early and the server, say, sent a HelloRequest
after reading the request headers but before we've sent the whole POST
body, the SSL state machine may racily enter renegotiate early, block
writing the POST body on the new handshake, which would break Chromium's
ERR_SSL_CLIENT_AUTH_CERT_NEEDED plumbing.

BUG=429450

Change-Id: I6278240c3bceb5d2e1a2195bdb62dd9e0f4df718
Reviewed-on: https://boringssl-review.googlesource.com/4825
Reviewed-by: Adam Langley <agl@google.com>
2015-05-21 20:50:43 +00:00
David Benjamin
44d3eed2bb Forbid caller-initiated renegotiations and all renego as a servers.
The only case where renego is supported is if we are a client and the
server sends a HelloRequest. That is still needed to support the renego
+ client auth hack in Chrome. Beyond that, no other forms of renego will
work.

The messy logic where the handshake loop is repurposed to send
HelloRequest and the extremely confusing tri-state s->renegotiate (which
makes SSL_renegotiate_pending a lie during the initial handshake as a
server) are now gone. The next change will further simplify things by
removing ssl->s3->renegotiate and the renego deferral logic. There's
also some server-only renegotiation checks that can go now.

Also clean up ssl3_read_bytes' HelloRequest handling. The old logic relied on
the handshake state machine to reject bad HelloRequests which... actually that
code probably lets you initiate renego by sending the first four bytes of a
ServerHello and expecting the peer to read it later.

BUG=429450

Change-Id: Ie0f87d0c2b94e13811fe8e22e810ab2ffc8efa6c
Reviewed-on: https://boringssl-review.googlesource.com/4824
Reviewed-by: Adam Langley <agl@google.com>
2015-05-21 20:43:56 +00:00
David Benjamin
9a41d1b946 Deprecate SSL_*_read_ahead and enforce DTLS packet boundaries.
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>
2015-05-21 18:29:34 +00:00
David Benjamin
3fa65f0f05 Fix some malloc test crashs.
This isn't exhaustive. There are still failures in some tests which probably
ought to get C++'d first.

Change-Id: Iac58df9d98cdfd94603d54374a531b2559df64c3
Reviewed-on: https://boringssl-review.googlesource.com/4795
Reviewed-by: Adam Langley <agl@google.com>
2015-05-21 18:00:10 +00:00
David Benjamin
31a07798a5 Factor SSL_AEAD_CTX into a dedicated type.
tls1_enc is now SSL_AEAD_CTX_{open,seal}. This starts tidying up a bit
of the record-layer logic. This removes rr->input, as encrypting and
decrypting records no longer refers to various globals. It also removes
wrec altogether. SSL3_RECORD is now only used to maintain state about
the current incoming record. Outgoing records go straight to the write
buffer.

This also removes the outgoing alignment memcpy and simply calls
SSL_AEAD_CTX_seal with the parameters as appropriate. From bssl speed
tests, this seems to be faster on non-ARM and a bit of a wash on ARM.

Later it may be worth recasting these open/seal functions to write into
a CBB (tweaked so it can be malloc-averse), but for now they take an
out/out_len/max_out trio like their EVP_AEAD counterparts.

BUG=468889

Change-Id: Ie9266a818cc053f695d35ef611fd74c5d4def6c3
Reviewed-on: https://boringssl-review.googlesource.com/4792
Reviewed-by: Adam Langley <agl@google.com>
2015-05-21 17:59:15 +00:00
Matt Braithwaite
69d07d9cf4 Get version-related functions from crypto.h rather than ssl.h.
(This makes it possible to include opensslv.h when not linking SSL.)

Change-Id: Id88c5ff44a7099d33d8d4672f7ba88986ffd1526
Reviewed-on: https://boringssl-review.googlesource.com/4831
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 22:58:14 +00:00
David Benjamin
b487df6fa9 Pull version, option, and mode APIs into their own sections.
Change-Id: Ic243f09f80b90f3bf816d5491501b40b77018999
Reviewed-on: https://boringssl-review.googlesource.com/4791
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 21:49:06 +00:00
David Benjamin
7270cfc1ca Prune version constants.
SSL3_VERSION_MAJOR is the only MAJOR/MINOR number used internally or
externally.

Change-Id: I3f17175e73fd89887665accf1bfa680581f42dfe
Reviewed-on: https://boringssl-review.googlesource.com/4790
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 21:42:08 +00:00
David Benjamin
afc9ecddb6 Unexport ssl_get_new_session and ssl_update_cache.
Chromium's session cache has since been rewritten and no longer needs to
muck with those functions in tests.

Change-Id: I2defad81513210dca5e105757e04cbb677583251
Reviewed-on: https://boringssl-review.googlesource.com/4788
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 21:41:13 +00:00
David Benjamin
3b7456e031 Fix some documentation typos.
Change-Id: I96302e9afc357573192b5f2a8664a5f744915336
Reviewed-on: https://boringssl-review.googlesource.com/4787
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 21:41:00 +00:00
David Benjamin
4831c3328c Document some core SSL_CTX and SSL methods.
Current thought is to organize this by:

- Core SSL_CTX APIs (creating, destroying)
- Core SSL APIs (creating destroying, maybe handshake, read, write as
  well)
- APIs to configure SSL_CTX/SSL, roughly grouped by feature. Probably
  options and modes are the first two sections. SSL_TXT_* constants can
  be part of documenting cipher suite configuration.
- APIs to query state from SSL_CTX/SSL, roughly grouped by feature. (Or
  perhaps these should be folded into the configuration sections?)

The functions themselves aren't reordered or reorganized to match the
eventual header order yet. Though I did do the s -> ssl rename on the
ones I've touched.

Also formally deprecate SSL_clear. It would be a core SSL API
except it's horrible.

Change-Id: Ia7e4fdcb7bad4e9ccdee8cf8c3136dc63aaaa772
Reviewed-on: https://boringssl-review.googlesource.com/4784
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 21:32:42 +00:00
David Benjamin
4dab297953 Don't use struct names in ssl.h.
The type names are perfectly serviceable. Most of them are
forward-declared in base.h.

Change-Id: Id03f5039a2d1bab82c68ade074a0e26cd3ab5ad9
Reviewed-on: https://boringssl-review.googlesource.com/4783
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 21:13:32 +00:00
Adam Langley
12a4768f7d Try to fix MSVC and __STDC_VERSION__ again.
Looks like it was the use in type_check.h that was still causing
problems, not that MSVC doesn't short-circuit #if statements.

Change-Id: I574e8dd463c46b0133a989b221a7bb8861b3eed9
2015-05-20 13:42:12 -07:00
Adam Langley
552df47dc0 Remove leftovers of the old-style locks.
At this point, none of these functions or macros are used so they can
just be deleted.

Change-Id: I8ed1aae7a252e886864bf43e3096eff2228183cd
Reviewed-on: https://boringssl-review.googlesource.com/4777
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 19:18:44 +00:00
Adam Langley
6fb174e564 Remove last references to named locks.
These ASN.1 macros are the last references to the old-style OpenSSL
locks that remain. The ASN.1 reference count handling was changed in a
previous commit to use |CRYPTO_refcount_*| so these lock references were
unused anyway.

Change-Id: I1b27eef140723050a8e6878a1bea11da3409d0eb
Reviewed-on: https://boringssl-review.googlesource.com/4776
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 19:18:30 +00:00
Adam Langley
4bdb6e43fa Remove remaining calls to the old lock functions.
|SSL_CTX| and |X509_STORE| have grown their own locks. Several static
locks have been added to hack around not being able to use a
|CRYPTO_once_t| in public headers. Lastly, support for calling
|SSL_CTX_set_generate_session_id| concurrently with active connections
has been removed. No other property of an |SSL_CTX| works like that.

Change-Id: Iff5fe3ee3fdd6ea9c9daee96f850b107ad8a6bca
Reviewed-on: https://boringssl-review.googlesource.com/4775
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 19:18:13 +00:00
Adam Langley
03163f3a11 Remove |CRYPTO_add|.
It's no longer needed after the conversion to |CRYPTO_refcount_t|.

Change-Id: Ied129c4c247fcd426745fa016350528b7571aaaa
Reviewed-on: https://boringssl-review.googlesource.com/4774
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 19:16:15 +00:00
Adam Langley
0b5e3908cf Convert reference counts in ssl/
Convert reference counts in ssl/ to use |CRYPTO_refcount_t|.

Change-Id: I5d60f641b0c89b1ddfe38bfbd9d7285c60377f4c
Reviewed-on: https://boringssl-review.googlesource.com/4773
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 19:15:47 +00:00
Adam Langley
0da323a8b8 Convert reference counts in crypto/
This change converts the reference counts in crypto/ to use
|CRYPTO_refcount_t|. The reference counts in |X509_PKEY| and |X509_INFO|
were never actually used and so were dropped.

Change-Id: I75d572cdac1f8c1083c482e29c9519282d7fd16c
Reviewed-on: https://boringssl-review.googlesource.com/4772
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 19:15:26 +00:00
Adam Langley
6f2e733bab Add infrastructure for reference counts.
OpenSSL has traditionally done reference counting with |int|s and the
|CRYPTO_add| function. Unless a special callback is installed (rare),
this is implemented by doing the reference count operations under a
lock.

This change adds infrastructure for handling reference counts and uses
atomic operations when C11 support is available.

Change-Id: Ia023ce432319efd00f77a7340da27d16ee4b63c3
Reviewed-on: https://boringssl-review.googlesource.com/4771
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 19:14:59 +00:00
Adam Langley
daaff93464 Use C11 _Static_assert where available.
OPENSSL_COMPILE_ASSERT implements a static assertion, but the error
message is a little weird because it's a hack around the fact that C,
traditionally, doesn't have static assertions.

C11 now does have _Static_assert (a.k.a. static_assert when one includes
assert.h) so we can use that when provided to get cleaner error
messages.

Change-Id: Ia3625dfb2988de11fd95ddba957f118c0d3183ff
Reviewed-on: https://boringssl-review.googlesource.com/4770
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 19:13:23 +00:00
Matt Braithwaite
dc8c739a3b Implement |DES_ede2_cbc_encrypt|.
Change-Id: I0d2a09242e2d5092ee7facab4729e9af36d9d548
Reviewed-on: https://boringssl-review.googlesource.com/4752
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 18:36:01 +00:00
Adam Langley
a7997f12be Set minimum DH group size to 1024 bits.
DH groups less than 1024 bits are clearly not very safe. Ideally servers
would switch to ECDHE because 1024 isn't great either, but this will
serve for the short term.

BUG=490240

Change-Id: Ic9aac714cdcdcbfae319b5eb1410675d3b903a69
Reviewed-on: https://boringssl-review.googlesource.com/4813
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 18:35:31 +00:00
Adam Langley
b3a262c9f1 Fix |SSLeay|.
SSLeay is a compatibility function for OpenSSL, but I got it wrong. It
doesn't return a string, it returns a number. This doesn't end up making
any difference, but it fixes a warning when building OpenSSH.

Change-Id: I327ab4f70313c93c18f81d8804ba4acdc3bc1a4a
Reviewed-on: https://boringssl-review.googlesource.com/4811
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-05-20 17:44:44 +00:00
Adam Langley
d72e284271 Support arbitrary elliptic curve groups.
This change exposes the functions needed to support arbitrary elliptic
curve groups. The Java API[1] doesn't allow a provider to only provide
certain elliptic curve groups. So if BoringSSL is an ECC provider on
Android, we probably need to support arbitrary groups because someone
out there is going to be using it for Bitcoin I'm sure.

Perhaps in time we can remove this support, but not yet.

[1] https://docs.oracle.com/javase/7/docs/api/java/security/spec/ECParameterSpec.html

Change-Id: Ic1d76de96f913c9ca33c46b451cddc08c5b93d80
Reviewed-on: https://boringssl-review.googlesource.com/4740
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-05-15 00:59:37 +00:00
David Benjamin
a07c0fc8f2 Fix SSL_get_current_cipher.
SSL_get_current_cipher is documented by upstream to return the cipher actually
being used. However, because it reads s->session, it returns information
pertaining to the session to be offered if queried before ServerHello or early
in an abbreviated handshake.

Logic around s->session needs more comprehensive cleanup but for just this
function, defining it to be the current outgoing cipher is close to the current
semantics but for fixing the initial state (s->session->cipher is populated
when sending CCS). Store it in the SSL_AEAD_CTX which seems a natural place to
associate state pertaining to a connection half.

BUG=484744

Change-Id: Ife8db27a16615d0dbb2aec65359537243e08af7c
Reviewed-on: https://boringssl-review.googlesource.com/4733
Reviewed-by: Adam Langley <agl@google.com>
2015-05-14 23:02:16 +00:00
David Benjamin
4b27d9f8bd Never resume sessions on renegotiations.
This cuts down on one config knob as well as one case in the renego
combinatorial explosion. Since the only case we care about with renego
is the client auth hack, there's no reason to ever do resumption.
Especially since, no matter what's in the session cache:

- OpenSSL will only ever offer the session it just established,
  whether or not a newer one with client auth was since established.

- Chrome will never cache sessions created on a renegotiation, so
  such a session would never make it to the session cache.

- The new_session + SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION
  logic had a bug where it would unconditionally never offer tickets
  (but would advertise support) on renego, so any server doing renego
  resumption against an OpenSSL-derived client must not support
  session tickets.

This also gets rid of s->new_session which is now pointless.

BUG=429450

Change-Id: I884bdcdc80bff45935b2c429b4bbc9c16b2288f8
Reviewed-on: https://boringssl-review.googlesource.com/4732
Reviewed-by: Adam Langley <agl@google.com>
2015-05-14 22:53:21 +00:00
David Benjamin
08dc68d510 Define no-op options consistently.
We have a lot of options that don't do anything.

Change-Id: I1681fd07d1272547d4face87917ce41029bbf0de
Reviewed-on: https://boringssl-review.googlesource.com/4731
Reviewed-by: Adam Langley <agl@google.com>
2015-05-13 17:11:52 +00:00
David Benjamin
e6df054a75 Add s->s3->initial_handshake_complete.
There's multiple different versions of this check, between
s->s3->have_version (only works at some points), s->new_session (really
weird and not actually right), s->renegotiate (fails on the server
because it's always 2 after ClientHello), and s->s3->tmp.finish_md_len
(super confusing). Add an explicit bit with clear meaning. We'll prune
some of the others later; notably s->renegotiate can go away when
initiating renegotiation is removed.

This also tidies up the extensions to be consistent about whether
they're allowed during renego:

- ALPN failed to condition when accepting from the server, so even
  if the client didn't advertise, the server could.

- SCTs now *are* allowed during renego. I think forbidding it was a
  stray copy-paste. It wasn't consistently enforced in both ClientHello
  and ServerHello, so the server could still supply it. Moreover, SCTs
  are part of the certificate, so we should accept it wherever we accept
  certificates, otherwise that session's state becomes incomplete. This
  matches OCSP stapling. (NB: Chrome will never insert a session created
  on renego into the session cache and won't accept a certificate
  change, so this is moot anyway.)

Change-Id: Ic9bd1ebe2a2dbe75930ed0213bf3c8ed8170e251
Reviewed-on: https://boringssl-review.googlesource.com/4730
Reviewed-by: Adam Langley <agl@google.com>
2015-05-13 17:11:31 +00:00
David Benjamin
897e5e0013 Default renegotiations to off.
As of crbug.com/484543, Chromium's SSLClientSocket is not sensitive to whether
renegotiation is enabled or not. Disable it by default and require consumers to
opt into enabling this protocol mistake.

BUG=429450

Change-Id: I2329068284dbb851da010ff1fd398df3d663bcc3
Reviewed-on: https://boringssl-review.googlesource.com/4723
Reviewed-by: Adam Langley <agl@google.com>
2015-05-13 17:02:14 +00:00
Matt Braithwaite
9b68e72d18 Define compatibility function |ERR_remove_state|.
(It was already declared.)

Change-Id: Ifcda07fe85a6d5d9e2d3b5c387793413f5048515
Reviewed-on: https://boringssl-review.googlesource.com/4713
Reviewed-by: Adam Langley <agl@google.com>
2015-05-12 19:06:18 +00:00
Matt Braithwaite
af3d5bd5a4 Add no-op |RAND_load_file| function for compatibility.
Change-Id: I9493a1509a75d3f0d99ce2b699d8781ad9b1bafa
Reviewed-on: https://boringssl-review.googlesource.com/4540
Reviewed-by: Adam Langley <agl@google.com>
2015-05-12 00:36:11 +00:00
Matt Braithwaite
58e95fc759 Remove a spurious semicolon after |DECLARE_LHASH_OF|.
Change-Id: I47873c4221a6d257a1cd5d6f431deb0fb1dc2566
Reviewed-on: https://boringssl-review.googlesource.com/4712
Reviewed-by: Adam Langley <agl@google.com>
2015-05-12 00:13:04 +00:00
Matt Braithwaite
3c651718e4 Add buffer.h for compatibility.
(OpenSSL defines |BUF_MEM| there.)

Change-Id: Id889100d2adff7ca8f7428fdfda1efdfd1003f37
Reviewed-on: https://boringssl-review.googlesource.com/4711
Reviewed-by: Adam Langley <agl@google.com>
2015-05-12 00:09:57 +00:00
Adam Langley
5aa8a86438 AEAD: allow _cleanup after failed _init.
This change makes it safe to call EVP_AEAD_CTX_cleanup after a failed
EVP_AEAD_CTX_init.

Change-Id: I608ed550e08d638cd7e941f5067edd3da4c850ab
Reviewed-on: https://boringssl-review.googlesource.com/4692
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-05-11 23:18:43 +00:00
David Benjamin
aebefed905 Always enable SSL_MODE_RELEASE_BUFFERS.
There's no real need to ever disable it, so this is one fewer configuration to
test. It's still disabled for DTLS, but a follow-up will resolve that.

Change-Id: Ia95ad8c17ae8236ada516b3968a81c684bf37fd9
Reviewed-on: https://boringssl-review.googlesource.com/4683
Reviewed-by: Adam Langley <agl@google.com>
2015-05-11 18:39:09 +00:00
David Benjamin
c561aa64b6 Require source files define __STDC_FORMAT_MACROS to use BN FMT macros.
inttypes.h kindly requires a feature macro in C++ on some platforms, due
to a bizarre footnote in C99 (see footnote 191 in section 7.8.1). As
bn.h is a public header, we must leak this wart to the consumer. On
platforms with unfriendly inttypes.h headers, using BN_DEC_FMT1 and
friends now require the feature macro be defined externally.

This broke the Chromium Android Clang builder:
http://build.chromium.org/p/chromium.linux/builders/Android%20Clang%20Builder%20%28dbg%29/builds/59288

Change-Id: I88275a6788c7babd0eae32cae86f115bfa93a591
Reviewed-on: https://boringssl-review.googlesource.com/4688
Reviewed-by: Adam Langley <agl@google.com>
2015-05-11 18:38:08 +00:00
Matt Braithwaite
3bf1cca262 Don't report |ERR_R_MALLOC_FAILURE| on failure of |EC_KEY_new_by_curve_name|.
Change |EC_KEY_new_by_curve_name| to report |ERR_R_MALLOC_FAILURE|
itself, so that reporting of |EC_R_UNKNOWN_GROUP| is not confused by
the caller's addition of a spurious |ERR_R_MALLOC_FAILURE|.

Change-Id: Id3f5364f01eb8e3597bcddd6484bc03d5578befb
Reviewed-on: https://boringssl-review.googlesource.com/4690
Reviewed-by: Adam Langley <agl@google.com>
2015-05-09 00:05:30 +00:00
Adam Langley
d100c2498f Fix doc reference to EVP_AEAD_max_overhead.
The documentation referred to the old name of |EVP_AEAD_overhead|.

Merged from Android's
https://android-review.googlesource.com/#/c/149947/

Change-Id: Ifd1b850355c8f7d9f3e990f514fa072d4cacef1c
2015-05-08 13:41:58 -07:00
Adam Langley
65a7e9442c Support Trusty, an embedded platform.
Trusty doesn't have setjmp.h and nor does it have threads.

Change-Id: I005f7a009a13e6632513be9fab2bbe62294519a4
Reviewed-on: https://boringssl-review.googlesource.com/4660
Reviewed-by: Adam Langley <agl@google.com>
2015-05-08 18:34:55 +00:00
David Benjamin
4d2e7ce47b Remove OPENSSL_timeval.
With DTLSv1_get_timeout de-ctrl-ified, the type checker complains about
OPENSSL_timeval. Existing callers all use the real timeval.

Now that OPENSSL_timeval is not included in any public structs, simply
forward-declare timeval itself in ssl.h and pull in winsock2.h in internal
headers.

Change-Id: Ieaf110e141578488048c28cdadb14881301a2ce1
Reviewed-on: https://boringssl-review.googlesource.com/4682
Reviewed-by: Adam Langley <agl@google.com>
2015-05-08 18:03:07 +00:00
David Benjamin
593047fd80 Opaquify DTLS structs.
Nothing ever uses those structs. This to avoid having any structs in the
public header which use struct timeval.

In doing so, move the protocol version constants up to ssl.h so dtls1.h
may be empty. This also removes TLS1_get_version and TLS1_get_client_version
as they're unused and depend on TLS1_VERSION_MAJOR. This still lets tls1.h
be included independently from ssl.h (though I don't think anyone ever includes
it...).

Change-Id: Ieac8b90cf94f7f1e742a88bb75c0ee0aa4b1414c
Reviewed-on: https://boringssl-review.googlesource.com/4681
Reviewed-by: Adam Langley <agl@google.com>
2015-05-08 18:02:02 +00:00
Adam Langley
0d107e183e Add support for CMAC (RFC 4493).
The interface for this is very similar to upstream, but the code is
quite different.

Support for “resuming” (i.e. calling |CMAC_Final| and then computing the
CMAC for an extension of the message) has been dropped. Also, calling
|CMAC_Init| with magic argument to reset it has been replaced with
|CMAC_Reset|.

Lastly, a one-shot function has been added because it can save an
allocation and that's what most callers actually appear to want to do.

Change-Id: I9345220218bdb16ebe6ca356928d7c6f055d83f6
Reviewed-on: https://boringssl-review.googlesource.com/4630
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-05-07 21:13:41 +00:00
David Benjamin
d6e95eefba Get rid of ssl_undefined_*
The only place using it is export keying material which can do the
version check inline.

Change-Id: I1893966c130aa43fa97a6116d91bb8b04f80c6fb
Reviewed-on: https://boringssl-review.googlesource.com/4615
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:56:02 +00:00
David Benjamin
605641ed95 Move the NULL case in ssl_add_cert_chain up.
It's only called for client certificates with NULL. The interaction with
extra_certs is more obvious if we handle that case externally. (We
shouldn't attach extra_certs if there is no leaf.)

Change-Id: I9dc26f32f582be8c48a4da9aae0ceee8741813dc
Reviewed-on: https://boringssl-review.googlesource.com/4613
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:53:53 +00:00
David Benjamin
7133d428dd Promote SNI macros to functions.
BUG=404754

Change-Id: I2b2e27f3db0c97f2db65ca5e226c6488d2bee2fc
Reviewed-on: https://boringssl-review.googlesource.com/4570
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:36:19 +00:00
David Benjamin
c2807582fd Promote channel ID macros to proper functions.
BUG=404754

Change-Id: I002d4602720e207f92a985d90f0d58e89562affa
Reviewed-on: https://boringssl-review.googlesource.com/4569
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:33:59 +00:00
David Benjamin
15a3b000cf Promote set_tmp_dh and set_tmp_ecdh to functions.
BUG=404754

Change-Id: I7c75dd88fe9338b1d3b90745f742d15d6b84775a
Reviewed-on: https://boringssl-review.googlesource.com/4568
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:30:22 +00:00
David Benjamin
c045469817 Promote a few more macros.
Next batch. Mostly a bunch of deprecated things. This switches
SSL_CTX_set_tmp_rsa from always failing to always succeeding. The latter
is probably a safer behavior; a consumer may defensively set a temporary
RSA key. We'll successfully "set it" and just never use the result.

Change-Id: Idd3d6bf4fc1a20bc9a26605bb9c77c9f799f993c
Reviewed-on: https://boringssl-review.googlesource.com/4566
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:28:12 +00:00
David Benjamin
9f226a5f51 Always set SSL_OP_SINGLE_DH_USE.
This is an API wart that makes it easy to accidentally reuse the server
DHE half for every handshake. It's much simpler to have only one mode.
This mirrors the change made to the ECDHE code; align with that logic.

Change-Id: I47cccbb354d70127ab458f99a6d390b213e4e515
Reviewed-on: https://boringssl-review.googlesource.com/4565
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:24:53 +00:00
David Benjamin
7cde0dee7c Fold num_renegotiations into total_renegotiations.
The only difference is SSL_clear_num_renegotiations which is never
called.

Change-Id: Id661c71e89d34d834349ad1f1a296e332606e6cc
Reviewed-on: https://boringssl-review.googlesource.com/4564
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:23:04 +00:00
David Benjamin
71f7d3d2e1 Promote everything directly in SSL_CTX_ctrl.
BUG=404754

Change-Id: I0e4af2f341fcef5d01c855d97e981b8597d08b63
Reviewed-on: https://boringssl-review.googlesource.com/4563
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:22:36 +00:00
David Benjamin
101ead27db Move SSL_cutthrough_complete to the deprecated section.
Change-Id: Ifb966061e52801a87d8be65fc0f23b1a4e57703f
Reviewed-on: https://boringssl-review.googlesource.com/4562
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:21:14 +00:00
David Benjamin
cb9cf796a2 Promote everything directly in SSL_ctrl.
BUG=404754

Change-Id: I0b0a1c35f3dc81e81deb34d409ae18a1d248669e
Reviewed-on: https://boringssl-review.googlesource.com/4561
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:15:27 +00:00
David Benjamin
2844b5eb1e Remove SSL_get0_raw_cipherlist.
The API is unused and rather awkward (mixes output parameters with
return values, special-case for NULL).

Change-Id: I4396f98534bf1271e53642f255e235cf82c7615a
Reviewed-on: https://boringssl-review.googlesource.com/4560
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:14:15 +00:00
David Benjamin
1d0a194cc1 Promote max_cert_list and max_send_fragment to functions.
Also size them based on the limits in the quantities they control (after
checking bounds at the API boundary).

BUG=404754

Change-Id: Id56ba45465a473a1a793244904310ef747f29b63
Reviewed-on: https://boringssl-review.googlesource.com/4559
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:14:07 +00:00
David Benjamin
da881e9a15 Promote deprecated statistics macros to functions.
Not going to bother adding the compatibility macros. If they get ifdef'd
out, all the better.

BUG=404754

Change-Id: I26414d2fb84ee1f0b15a3b96c871949fe2bb7fb1
Reviewed-on: https://boringssl-review.googlesource.com/4558
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:13:13 +00:00
David Benjamin
61ecccfa3e Promote read_ahead, mode and option macros to functions.
BUG=404754

Change-Id: Ieeeb538bd25854d5664e33fe3fa79bd686c26704
Reviewed-on: https://boringssl-review.googlesource.com/4557
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:12:48 +00:00
David Benjamin
123a8fdb98 Switch options and mode bits to uint32_t from unsigned long.
This is a bitmask, so the number of bits available should be the same
across all platforms.

Change-Id: I98e8d375fc7d042aeae1270174bc8fc63fba5dfc
Reviewed-on: https://boringssl-review.googlesource.com/4556
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:11:15 +00:00
David Benjamin
8c24980d83 Promote all dtls1_ctrl hooks to functions.
BUG=404754

Change-Id: I5f11485fbafa07cddcf2612e2f616f90bf7c722d
Reviewed-on: https://boringssl-review.googlesource.com/4554
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:11:05 +00:00
David Benjamin
59015c365b Promote all SSL callback ctrl hooks to proper functions.
Document them while I'm here. This adds a new 'preprocessor
compatibility section' to avoid breaking #ifdefs. The CTRL values
themselves are defined to 'doesnt_exist' to catch anything calling
SSL_ctrl directly until that function can be unexported completely.

BUG=404754

Change-Id: Ia157490ea8efe0215d4079556a0c7643273e7601
Reviewed-on: https://boringssl-review.googlesource.com/4553
Reviewed-by: Adam Langley <agl@google.com>
2015-05-06 22:10:47 +00:00
David Benjamin
f32d6b292e Remove remnants of old OCSP stapling API.
Probably we'll want some simpler server-side API later. But, as things
stand, all consumers of these functions are #ifdef'd out and have to be
because the requisite OCSP_RESPONSE types are gone.

Change-Id: Ic82b2ab3feca14c56656da3ceb3651819e3eb377
Reviewed-on: https://boringssl-review.googlesource.com/4551
Reviewed-by: Adam Langley <agl@google.com>
2015-05-05 18:31:15 +00:00
David Benjamin
9a727c21c1 Remove SSL_set_tlsext_debug_callback.
It's unused, but for some old #ifdef branch in wpa_supplicant's EAP-FAST
hack, before SSL_set_session_ticket_ext_cb existed.

Change-Id: Ifc11fea2f6434354f756e04e5fc3ed5f1692025e
Reviewed-on: https://boringssl-review.googlesource.com/4550
Reviewed-by: Adam Langley <agl@google.com>
2015-05-05 18:30:52 +00:00
Adam Langley
517da2f1ef Add |BIO_up_ref| and |EVP_PKEY_up_ref|.
This avoids callers having to worry about |CRYPTO_add| and what the
correct lock to use it with is. (Esp since we'll probably change the way
that reference counts work in the future.)

Change-Id: I972bf0cc3be6099e0255e64a0fd50249062d1eb4
Reviewed-on: https://boringssl-review.googlesource.com/4623
Reviewed-by: Adam Langley <agl@google.com>
2015-05-05 18:30:03 +00:00
Adam Langley
126320c881 Add dummy EC_GROUP_set_point_conversion_form.
BoringSSL always uses uncompressed points. This function aborts if
another form is requested or does nothing if uncompressed points are
requested.

Change-Id: I80bc01444cdf9c789c9c75312b5527bf4957361b
2015-05-04 17:53:02 -07:00
Adam Langley
5dca031ca1 Add AES-192 ECB.
I tried so hard to get rid of AES-192, but it's called from too many
places. I suspect that those places don't actually use it, but it's
dangerous to assume that.

Change-Id: I6208b64a463e3539973532abd21882e0e4c55a1c
2015-05-04 17:52:24 -07:00
Adam Langley
97e8ba8d1d Rename ECDHE-PSK-WITH-AES-128-GCM-SHA256 to follow the naming conventions.
“ECDHE-PSK-WITH-AES-128-GCM-SHA256” doesn't follow the standard naming
for OpenSSL: it was “-WITH-” in it and has a hyphen between “AES” and
“128”. This change fixes that.

Change-Id: I7465b1ec83e7d5b9a60d8ca589808aeee10c174e
Reviewed-on: https://boringssl-review.googlesource.com/4601
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-05-05 00:33:32 +00:00
Adam Langley
ab9017b0ff Revert "bio: remove reference count."
Android uses BIO reference counting.

This reverts commit 9bde6aeb76.

Change-Id: Ibf4a7f42477549d10829a424ea3b52f09098666c
Reviewed-on: https://boringssl-review.googlesource.com/4472
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-05-05 00:28:22 +00:00
Matt Braithwaite
f7535aed7d Remove spurious declarations of |X509V3_EXT_conf| and friends.
These functions were #if 0'ed out in the code, which is a distraction.

Change-Id: I186196ab512565507476f9b56682bf59d003d85f
Reviewed-on: https://boringssl-review.googlesource.com/4604
Reviewed-by: Adam Langley <agl@google.com>
2015-05-05 00:22:59 +00:00
Matt Braithwaite
9febf19e54 Add do-nothing compatibility function |ERR_load_ERR_strings|.
Change-Id: I9ad06017b7b726e4529367ad244ae8945853ce62
Reviewed-on: https://boringssl-review.googlesource.com/4603
Reviewed-by: Adam Langley <agl@google.com>
2015-05-05 00:22:28 +00:00
Matt Braithwaite
e7b32c30e1 Make format strings for bignums, like |BN_DEC_FMT1|, visible.
Change-Id: If9641b3367a2bc155d97fe4ee72eb971b088bae0
Reviewed-on: https://boringssl-review.googlesource.com/4602
Reviewed-by: Adam Langley <agl@google.com>
2015-05-05 00:21:19 +00:00
David Benjamin
ed8fbad170 Remove SSL cert_flags.
These are never used and no flags are defined anyway.

Change-Id: I206dc2838c5f68d87559a702dcb299b208cc7e1e
Reviewed-on: https://boringssl-review.googlesource.com/4493
Reviewed-by: Adam Langley <agl@google.com>
2015-05-04 22:48:13 +00:00
David Benjamin
dd978784d7 Always enable ecdh_auto.
This is a really dumb API wart. Now that we have a limited set of curves that
are all reasonable, the automatic logic should just always kick in. This makes
set_ecdh_auto a no-op and, instead of making it the first choice, uses it as
the fallback behavior should none of the older curve selection APIs be used.

Currently, by default, server sockets can only use the plain RSA key exchange.

BUG=481139

Change-Id: Iaabc82de766cd00968844a71aaac29bd59841cd4
Reviewed-on: https://boringssl-review.googlesource.com/4531
Reviewed-by: Adam Langley <agl@google.com>
2015-04-28 20:51:05 +00:00
David Benjamin
2c6080f192 Put the mem.h include back into crypto.h.
054e682675 removed the compatibility include of
mem.h in crypto.h. mem.h doesn't exist in upstream which defines these
functions in crypto.h instead. The compatibility include should probably be
restored to avoid causing all kinds of grief when porting consumers over.

Change-Id: Idfe0f9b43ebee5df22bebfe0ed6dc85ec98b4de0
Reviewed-on: https://boringssl-review.googlesource.com/4530
Reviewed-by: Adam Langley <agl@google.com>
2015-04-28 20:14:32 +00:00
Adam Langley
9bc266e68d Fix typo in comment for SSL_MODE_SEND_FALLBACK_SCSV.
Comment-only change. No semantic effect.

Change-Id: I72fe8a277eb65297edd26e590471f4cafd974e4a
2015-04-23 17:28:27 -07:00
David Benjamin
f0df86a1f6 Fix standalone build on Mac.
CRYPTO_MUTEX was the wrong size. Fortunately, Apple was kind enough to define
pthread_rwlock_t unconditionally, so we can be spared fighting with feature
macros. Some of the stdlib.h removals were wrong and clang is pick about
multiply-defined typedefs. Apparently that's a C11 thing?

BUG=478598

Change-Id: Ibdcb8de9e5d83ca28e4c55b2979177d1ef0f9721
Reviewed-on: https://boringssl-review.googlesource.com/4404
Reviewed-by: Adam Langley <agl@google.com>
2015-04-20 16:50:18 +00:00
Adam Langley
ad6b28e974 Add 64-bit, P-256 implementation.
This is taken from upstream, although it originally came from us. This
will only take effect on 64-bit systems (x86-64 and aarch64).

Before:

Did 1496 ECDH P-256 operations in 1038743us (1440.2 ops/sec)
Did 2783 ECDSA P-256 signing operations in 1081006us (2574.5 ops/sec)
Did 2400 ECDSA P-256 verify operations in 1059508us (2265.2 ops/sec)

After:

Did 4147 ECDH P-256 operations in 1061723us (3905.9 ops/sec)
Did 9372 ECDSA P-256 signing operations in 1040589us (9006.4 ops/sec)
Did 4114 ECDSA P-256 verify operations in 1063478us (3868.4 ops/sec)

Change-Id: I11fabb03239cc3a7c4a97325ed4e4c97421f91a9
2015-04-16 13:53:05 -07:00
Adam Langley
d5eb7f4268 bio: remove BIO_CTRL_PUSH/_POP.
We don't support the SSL BIO so this is a no-op change.

Change-Id: Iba9522b837ebb0eb6adc80d5df6dcac99abf2552
Reviewed-on: https://boringssl-review.googlesource.com/4360
Reviewed-by: Adam Langley <agl@google.com>
2015-04-16 00:16:20 +00:00
David Benjamin
9f33fc63c6 Remove hash table lookups from ex_data.
Instead, each module defines a static CRYPTO_EX_DATA_CLASS to hold the values.
This makes CRYPTO_cleanup_all_ex_data a no-op as spreading the
CRYPTO_EX_DATA_CLASSes across modules (and across crypto and ssl) makes cleanup
slightly trickier. We can make it do something if needbe, but it's probably not
worth the trouble.

Change-Id: Ib6f6fd39a51d8ba88649f0fa29c66db540610c76
Reviewed-on: https://boringssl-review.googlesource.com/4375
Reviewed-by: Adam Langley <agl@google.com>
2015-04-15 23:59:35 +00:00
David Benjamin
2ab9090b87 Remove X509_STORE's ex_data.
No functions for using it were ever added.

Change-Id: Iaee6e5bc8254a740435ccdcdbd715b851d8a0dce
Reviewed-on: https://boringssl-review.googlesource.com/4374
Reviewed-by: Adam Langley <agl@google.com>
2015-04-15 23:36:09 +00:00
David Benjamin
1004b9564a Remove BIO's ex_data.
No wrappers were ever added and codesearch confirms no one ever added to it
manually. Probably anyone doing complex things with BIOs just made a custom
BIO_METHOD. We can put it back with proper functions if the need ever arises.

Change-Id: Icb5da7ceeb8f1da6d08f4a8854d53dfa75827d9c
Reviewed-on: https://boringssl-review.googlesource.com/4373
Reviewed-by: Adam Langley <agl@google.com>
2015-04-15 23:35:51 +00:00
David Benjamin
546f1a59ef Unexpose the generic ex_data functions.
Callers are required to use the wrappers now. They still need OPENSSL_EXPORT
since crypto and ssl get built separately in the standalone shared library
build.

Change-Id: I61186964e6099b9b589c4cd45b8314dcb2210c89
Reviewed-on: https://boringssl-review.googlesource.com/4372
Reviewed-by: Adam Langley <agl@google.com>
2015-04-15 23:27:22 +00:00
David Benjamin
b857ffe629 Remove CRYPTO_ex_data_new_class.
It's unused and requires ex_data support a class number per type.

Change-Id: Ie1fb55053631ef00c3318f3253f7c9501988f522
Reviewed-on: https://boringssl-review.googlesource.com/4371
Reviewed-by: Adam Langley <agl@google.com>
2015-04-15 23:24:21 +00:00
David Benjamin
32cd83f4de Remove the ability to set custom ex_data implementations.
This is never used and we can make the built-in one performant.

Change-Id: I6fc7639ba852349933789e73762bc3fa1341b2ff
Reviewed-on: https://boringssl-review.googlesource.com/4370
Reviewed-by: Adam Langley <agl@google.com>
2015-04-15 23:23:50 +00:00
Brian Smith
f86c199f67 Fix Windows newline in err.h from commit 83a8298.
Change-Id: I2caa65b35e80233009e82599838f65aaf2e73cf4
Reviewed-on: https://boringssl-review.googlesource.com/4341
Reviewed-by: Adam Langley <agl@google.com>
2015-04-15 03:07:07 +00:00
Brian Smith
b828cfde3a Fix typos in documentation in rsa.h.
Change-Id: I0fb680d088425df8fca558bf8d4213f251eb0a96
Reviewed-on: https://boringssl-review.googlesource.com/4340
Reviewed-by: Adam Langley <agl@google.com>
2015-04-15 03:06:53 +00:00
Adam Langley
c3ef76f327 Compatibility changes for wpa_supplicant and OpenSSH.
OpenSSH, especially, does some terrible things that mean that it needs
the EVP_CIPHER structure to be exposed ☹. Damian is open to a better API
to replace this, but only if OpenSSL agree too. Either way, it won't be
happening soon.

Change-Id: I393b7a6af6694d4d2fe9ebcccd40286eff4029bd
Reviewed-on: https://boringssl-review.googlesource.com/4330
Reviewed-by: Adam Langley <agl@google.com>
2015-04-14 20:18:28 +00:00
Adam Langley
310d4dd6b6 rand: new-style locking and support rdrand.
Pure /dev/urandom, no buffering (previous behaviour):
Did 2320000 RNG (16 bytes) operations in 3000082us (773312.2 ops/sec): 12.4 MB/s
Did 209000 RNG (256 bytes) operations in 3011984us (69389.5 ops/sec): 17.8 MB/s
Did 6851 RNG (8192 bytes) operations in 3052027us (2244.7 ops/sec): 18.4 MB/s

Pure rdrand speed:
Did 34930500 RNG (16 bytes) operations in 3000021us (11643418.5 ops/sec): 186.3 MB/s
Did 2444000 RNG (256 bytes) operations in 3000164us (814622.1 ops/sec): 208.5 MB/s
Did 80000 RNG (8192 bytes) operations in 3020968us (26481.6 ops/sec): 216.9 MB/s

rdrand + ChaCha (as in this change):
Did 19498000 RNG (16 bytes) operations in 3000086us (6499147.0 ops/sec): 104.0 MB/s
Did 1964000 RNG (256 bytes) operations in 3000566us (654543.2 ops/sec): 167.6 MB/s
Did 62000 RNG (8192 bytes) operations in 3034090us (20434.5 ops/sec): 167.4 MB/s

Change-Id: Ie17045650cfe75858e4498ac28dbc4dcf8338376
Reviewed-on: https://boringssl-review.googlesource.com/4328
Reviewed-by: Adam Langley <agl@google.com>
2015-04-14 20:13:42 +00:00
Adam Langley
683d7bd20a Convert BN_MONT_CTX to new-style locking.
This introduces a per-RSA/DSA/DH lock. This is good for lock contention,
although pthread locks are depressingly bloated.

Change-Id: I07c4d1606fc35135fc141ebe6ba904a28c8f8a0c
Reviewed-on: https://boringssl-review.googlesource.com/4324
Reviewed-by: Adam Langley <agl@google.com>
2015-04-14 20:10:27 +00:00
Adam Langley
df1f5e796c crypto: add mutexes.
Prior to this, BoringSSL was using OpenSSL's technique of having users
register a callback for locking operation. This change adds native mutex
support.

Since mutexes often need to be in objects that are exposed via public
headers, the non-static mutexes are defined in thread.h. However, on
Windows we don't want to #include windows.h for CRITICAL_SECTION and, on
Linux, pthread.h doesn't define pthread_rwlock_t unless the feature
flags are set correctly—something that we can't control in general
for public header files. Thus, on both platforms, the mutex is defined
as a uint8_t[] of equal or greater size and we depend on static asserts
to ensure that everything works out ok.

Change-Id: Iafec17ae7e3422325e587878a5384107ec6647ab
Reviewed-on: https://boringssl-review.googlesource.com/4321
Reviewed-by: Adam Langley <agl@google.com>
2015-04-14 20:07:15 +00:00
Adam Langley
9bde6aeb76 bio: remove reference count.
It appears that this reference “count” is set to one at creation and
never touched after that.

Change-Id: I3238a6d3dd702953771b8ec725c1c5712c648fba
Reviewed-on: https://boringssl-review.googlesource.com/4320
Reviewed-by: Adam Langley <agl@google.com>
2015-04-14 20:04:52 +00:00
David Benjamin
b16346b0ad Add SSL_set_reject_peer_renegotiations.
This causes any unexpected handshake records to be met with a fatal
no_renegotiation alert.

In addition, restore the redundant version sanity-checks in the handshake state
machines. Some code would zero the version field as a hacky way to break the
handshake on renego. Those will be removed when switching to this API.

The spec allows for a non-fatal no_renegotiation alert, but ssl3_read_bytes
makes it difficult to find the end of a ClientHello and skip it entirely. Given
that OpenSSL goes out of its way to map non-fatal no_renegotiation alerts to
fatal ones, this seems probably fine. This avoids needing to account for
another source of the library consuming an unbounded number of bytes without
returning data up.

Change-Id: Ie5050d9c9350c29cfe32d03a3c991bdc1da9e0e4
Reviewed-on: https://boringssl-review.googlesource.com/4300
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 22:38:58 +00:00
David Benjamin
8f64778a39 Add some missing headers to doc.config.
Change-Id: I9d9c055c6cd2c51183f704d61aea6ccbfc218629
Reviewed-on: https://boringssl-review.googlesource.com/4294
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 22:07:47 +00:00
David Benjamin
0d8a758938 Start generating documentation for ssl.h.
There's this giant "Underdocumented functions" section in the middle, but it
doesn't look too silly once the "Deprecated methods" section is merged in with
the other deprecated functions.

Change-Id: Ib97d88b0f915f60e9790264474a9e4aa3e115382
Reviewed-on: https://boringssl-review.googlesource.com/4291
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 22:07:09 +00:00
David Benjamin
71f0794d34 Document everything in ssl_ciph.c, now ssl_cipher.c.
Just about everything depends on SSL_CIPHER. Move it to the top as the first
section in ssl.h. Match the header order and the source file order and document
everything. Also make a couple of minor style guide tweaks.

Change-Id: I6a810dbe79238278ac480e5ced1447055715a79f
Reviewed-on: https://boringssl-review.googlesource.com/4290
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 22:06:55 +00:00
David Benjamin
087e4fa478 Fix minor stylistic issues with ssl.h.
Mostly stuff that doc.go was grumpy about. The main change is to move the
version-specific headers to the bottom. Injecting them in the middle makes it
seem as if the definitions above the #include and those below are somehow
different, but it compiles fine with them at the bottom. (They have to be at
the bottom because those headers depend on ssl.h.)

Change-Id: Iaa4139d2f157c7a3fd0ea609b78ff11d2edfc7b0
Reviewed-on: https://boringssl-review.googlesource.com/4289
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 22:06:19 +00:00
David Benjamin
6b38086341 Remove SSL_CIPHER::valid.
It's no longer needed to distinguish ciphers from fake ciphers.

Change-Id: I1ad4990ba936b1059eb48f3d2f309eb832dd1cb5
Reviewed-on: https://boringssl-review.googlesource.com/4285
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 22:05:41 +00:00
Brian Smith
c82a00d818 Replace MD5 in examples with SHA-256.
Avoiding superflous references to MD5 makes it easier to audit the code
to find unsafe uses of it. It also avoids subtly encouraging users to
choose MD5 instead of a better alternative.

Change-Id: Ic78eb5dfbf44aac39e4e4eb29050e3337c4445cc
Reviewed-on: https://boringssl-review.googlesource.com/3926
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 20:55:48 +00:00
Brian Smith
054e682675 Eliminate unnecessary includes from low-level crypto modules.
Beyond generally eliminating unnecessary includes, eliminate as many
includes of headers that declare/define particularly error-prone
functionality like strlen, malloc, and free. crypto/err/internal.h was
added to remove the dependency on openssl/thread.h from the public
openssl/err.h header. The include of <stdlib.h> in openssl/mem.h was
retained since it defines OPENSSL_malloc and friends as macros around
the stdlib.h functions. The public x509.h, x509v3.h, and ssl.h headers
were not changed in order to minimize breakage of source compatibility
with external code.

Change-Id: I0d264b73ad0a720587774430b2ab8f8275960329
Reviewed-on: https://boringssl-review.googlesource.com/4220
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 20:49:18 +00:00
Brian Smith
6e8fbfecd0 Remove crypto/obj dependencies from low-level crypto tests.
The only dependency the low-level crypto modules have on code in
crypto/obj is their use of OBJ_nid2sn, which is trivial to avoid.
This facilitates future simplification of crypto/obj, including
possibly the removal of functions like OBJ_nid2sn and the complex
build infrastructure that supports them.

This change also removes EVP_CIPHER_name and EVP_MD_name.

Change-Id: I34ce7dc7e58d5c08b52f95d25eba3963590cf2f7
Reviewed-on: https://boringssl-review.googlesource.com/3932
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 20:25:45 +00:00
Brian Smith
83a82981dc Rename BIO_print_errors_fp back to ERR_print_errors_fp & refactor it.
A previous change in BoringSSL renamed ERR_print_errors_fp to
BIO_print_errors_fp as part of refactoring the code to improve the
layering of modules within BoringSSL. Rename it back for better
compatibility with code that was using the function under the original
name. Move its definition back to crypto/err using an implementation
that avoids depending on crypto/bio.

Change-Id: Iee7703bb1eb4a3d640aff6485712bea71d7c1052
Reviewed-on: https://boringssl-review.googlesource.com/4310
Reviewed-by: Adam Langley <agl@google.com>
2015-04-13 20:23:29 +00:00
Brian Smith
7d897a1bf2 Replace RC4 in examples with AES-128-GCM.
Avoiding superflous references to RC4 makes it easier to audit the code
to find unsafe uses of it. It also avoids subtly encouraging users to
choose RC4 instead of a better alternative.

Change-Id: Ia27d7f4cd465e143d30a28b36c7871f7c30411ea
Reviewed-on: https://boringssl-review.googlesource.com/3990
Reviewed-by: Adam Langley <agl@google.com>
2015-04-10 22:39:23 +00:00
David Benjamin
e00fc887e4 Fix typo.
Change-Id: I4303abae61a7526e039ccb9a321b7b18e0ba35b7
Reviewed-on: https://boringssl-review.googlesource.com/4287
Reviewed-by: Adam Langley <agl@google.com>
2015-04-10 22:25:59 +00:00
David Benjamin
107db58047 Switch cipher masks to uint32_t.
These are all masks of some sort (except id which is a combined version and
cipher), so they should use fixed-size unsigned integers.

Change-Id: I058dd8ad231ee747df4b4fb17d9c1e2cbee21918
Reviewed-on: https://boringssl-review.googlesource.com/4283
Reviewed-by: Adam Langley <agl@google.com>
2015-04-10 22:16:05 +00:00
David Benjamin
2e749e8f61 Move the sys/time.h #include out of extern C.
We shouldn't be wrapping system headers.

Change-Id: I77498f4ec869797050b276eb764d892f73782f9f
Reviewed-on: https://boringssl-review.googlesource.com/4282
Reviewed-by: Adam Langley <agl@google.com>
2015-04-10 22:15:19 +00:00
David Benjamin
2ee94aabf5 Rename ssl_locl.h to internal.h
Match the other internal headers.

Change-Id: Iff7e2dd06a1a7bf993053d0464cc15638ace3aaa
Reviewed-on: https://boringssl-review.googlesource.com/4280
Reviewed-by: Adam Langley <agl@google.com>
2015-04-10 22:14:09 +00:00
Adam Langley
0fd5639701 Fix up whitespace in headers for doc.go.
Also, set sensible defaults for the command-line arguments to doc.go.

Change-Id: Iefd2ade4c9095489efa0ae1059007593fc84923a
2015-04-08 17:32:55 -07:00
David Benjamin
32fbdf2025 Remove anonymous cipher suites.
These are the remaining untested cipher suites. Rather than add support in
runner.go, just remove them altogether. Grepping for this is a little tricky,
but nothing enables aNULL (all occurrences disable it), and all occurrences of
["ALL:] seem to be either unused or explicitly disable anonymous ciphers.

Change-Id: I4fd4b8dc6a273d6c04a26e93839641ddf738343f
Reviewed-on: https://boringssl-review.googlesource.com/4258
Reviewed-by: Adam Langley <agl@google.com>
2015-04-08 23:29:07 +00:00
Adam Langley
33672736b7 Get rid of the THREADID stuff.
Now that ERR is using thread-local storage, there's very little that the
THREADID code is doing and it can be turned into stub functions.

Change-Id: I668613fec39b26c894d029b10a8173c3055f6019
2015-04-08 16:24:49 -07:00
Adam Langley
b9e77a0c0c Use thread-local storage for ERR.
Change-Id: I012bff37094ecb29621197ea1d52626bb87f2f0f
2015-04-08 16:23:03 -07:00
Adam Langley
2e0f0711dd Remove the implementation abstraction from ERR.
Since ERR will soon have thread-local storage, we don't need to worry
about high-performance implementations and thus don't need to be able to
switch two different implementations at run-time.

Change-Id: I0598054ee8a8b499ac686ea635a96f5d03c754e0
2015-04-08 16:20:07 -07:00
David Benjamin
2f18c1babb Prune away (almost) all of asn1_mac.h
Amazingly, asn1_GetSequence isn't completely unused? Keep that around for now
and ditch everything else. This lets us enable C4311 in MSVC which is actually
a pretty reasonable warning.

Change-Id: I43bb9206b1745e8a68224f3a435713d2a74e04ea
Reviewed-on: https://boringssl-review.googlesource.com/4256
Reviewed-by: Adam Langley <agl@google.com>
2015-04-08 20:42:57 +00:00
Brian Smith
57581da626 Remove unused ex_data indexes.
The unused ex_data index declarations are commented out instead of
removed so that it is clear which values to avoid for any new ex_data
indexes added in the future.

Change-Id: Ia19da9631324492c5c7eeacc71453e6240c73870
Reviewed-on: https://boringssl-review.googlesource.com/3940
Reviewed-by: Adam Langley <agl@google.com>
2015-04-07 00:09:47 +00:00
Brian Smith
5d48b02a5b Remove TODO about removing ECDSA_do_sign/ECDSA_do_verify.
These functions are useful for implementing non-ASN.1-based protocols
like JSON Web Signature (JWS) and they are even already used within
Chromium.

Change-Id: I58f41ca7beedc5a0b7a8c3da53f319aadff4c0e7
Reviewed-on: https://boringssl-review.googlesource.com/3936
Reviewed-by: Adam Langley <agl@google.com>
2015-04-07 00:07:19 +00:00
Adam Langley
7e6c4c8945 Add a couple of compatibility #defines for DH.
Change-Id: Ic190c64ec571e798c22c7afa75ae6c2804c93fd4
2015-04-06 16:58:46 -07:00
Adam Langley
1049e26f6b Support several flavours of AES-192.
Change-Id: I28d302fad0d3d00fa69d3224a96366207729d8d5
2015-04-06 16:58:46 -07:00
Adam Langley
087930f5b5 Add OFB mode.
Change-Id: I267cf7897b5a9f73f8de729971cb9e92937011dd
2015-04-06 16:58:45 -07:00
Adam Langley
d4a5ecd869 Add NCONF_load_bio.
Change-Id: Icebf5c08dde01f07e4d16e782a75be990a078e1a
2015-04-06 16:58:45 -07:00
Adam Langley
c004dfc3d1 Add decrepit, initially containing CAST and Blowfish.
decrepit will contain algorithms that we really wish didn't exist any
longer. It won't be built by default in Chromium etc, but the code
will exist for crummy code that still needs it.

Change-Id: Ic307f5f0a69efe9e0a5fd54052f49d219e90dcdd
2015-04-06 16:58:45 -07:00
Adam Langley
765b66cf04 Add DSA support to EVP.
Sadly, it turns out that we have need of this, at least for now. The
code is taken from upstream and changed only as much as needed.

This only imports keys and doesn't know how to actually perform
operations on them for now.

Change-Id: I0db70fb938186cb7a91d03f068b386c59ed90b84
2015-04-06 16:58:45 -07:00
David Benjamin
ece3de95c6 Enforce that sessions are resumed at the version they're created.
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>
2015-04-06 21:40:32 +00:00
David Benjamin
4417d055e2 Remove buffered_app_data as well.
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>
2015-04-06 21:39:27 +00:00
David Benjamin
0afbcc05e6 Remove buffering out records from the next epoch.
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>
2015-04-06 20:51:24 +00:00
David Benjamin
4a3f0732fd Tidy record length check.
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>
2015-04-06 20:50:45 +00:00
David Benjamin
d81e73dcbb Factor out sequence number updates.
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>
2015-04-06 20:50:37 +00:00
David Benjamin
cfd248b7f6 Clean up SSL_export_keying_material implementation.
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>
2015-04-06 20:47:54 +00:00
David Benjamin
9faafdaeb8 Clean up do_ssl3_write fragment handling.
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 7fdeaf1101, 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>
2015-04-06 18:53:15 +00:00
David Benjamin
72f5911a16 Fix the standalone shared library build.
BUG=473360

Change-Id: I6dc06eb425dd10c8d6a40d17f94405ea6f2f3905
Reviewed-on: https://boringssl-review.googlesource.com/4210
Reviewed-by: Adam Langley <agl@google.com>
2015-04-02 21:07:17 +00:00
David Benjamin
c0f763b080 Simplify server-side ECDH curve selection.
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>
2015-04-02 18:37:06 +00:00
David Benjamin
a5974bfae7 Convert bn_test to C++.
Along the way, fix a host of missing failure checks. This will save some
headache when it comes time to run these under the malloc failure tests.

Change-Id: I3fd589bd094178723398e793d6bc578884e99b67
Reviewed-on: https://boringssl-review.googlesource.com/4126
Reviewed-by: Adam Langley <agl@google.com>
2015-04-01 19:53:51 +00:00
Adam Langley
c11e13a78b Support MIPS64.
MIPS64 confusingly sets __mips__, but it's not a 32-bit platform. This
change updates the defines in base.h to recognise MIPS64 based on both
__mips__ and __LP64__ being defined.

Change-Id: I220f5d9c8f1cd7d3089cc013348e6f95cdee76d9
Reviewed-on: https://boringssl-review.googlesource.com/4093
Reviewed-by: Adam Langley <agl@google.com>
2015-03-31 22:27:10 +00:00
Adam Langley
20b64fd19d Export the PSS padding functions.
(system/keymaster is using them now.)

Change-Id: I8fba501005b9318b7d3a76bf1715fb772b23c49d
Reviewed-on: https://boringssl-review.googlesource.com/4092
Reviewed-by: Adam Langley <agl@google.com>
2015-03-31 22:26:57 +00:00
David Benjamin
87ac295d5d Remove unused fields from EVP_PKEY.
None of these are ever set.

Change-Id: If92554a4c560bf8fa2d630c419a946711db30839
Reviewed-on: https://boringssl-review.googlesource.com/4114
Reviewed-by: Adam Langley <agl@google.com>
2015-03-25 15:32:33 +00:00
David Benjamin
8056343a58 Fix CRYPTO_add_lock documentation.
It's not actually CRYPTO_add_locked, despite the name. I guess they just needed
a name that didn't clash with CRYPTO_add.

Change-Id: I3fdee08bf75e9a4e1b5e75630707c0be5792599b
Reviewed-on: https://boringssl-review.googlesource.com/4102
Reviewed-by: Adam Langley <agl@google.com>
2015-03-23 23:08:20 +00:00
David Benjamin
b6d0c6db5e Remove the stats block in SSL_CTX.
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>
2015-03-23 23:07:56 +00:00
Adam Langley
32156b974d Add some more Android compatibility declarations.
Change-Id: Ia1de2b746dec680eb59dc614295a1da289c5741a
2015-03-20 11:50:29 -07:00
David Benjamin
7061e28dc2 Rename EECDH and EDH to ECDHE and DHE.
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>
2015-03-19 19:54:58 +00:00
Adam Langley
f21645f4e3 Typo fix in comment.
(Thanks to William Hesse.)

Change-Id: I8479663250546a5ec0a024f80e50541f91d833bc
Reviewed-on: https://boringssl-review.googlesource.com/4020
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-03-18 22:01:26 +00:00
David Benjamin
067321502d Explicitly document EVP_PKEY_size vs EVP_PKEY_bits.
They do not quite measure the same value for EC keys. "size" is a really weird
notion to generalize on so we should document what it means for each key type.
EVP_PKEY_size's meaning is most tied to signatures, thanks to EVP_SignFinal
implicitly using it as output bounds.

Change-Id: I7504c142818f8f90f8bcf6891c97a6adaf2d574e
Reviewed-on: https://boringssl-review.googlesource.com/4000
Reviewed-by: Adam Langley <agl@google.com>
2015-03-18 21:45:42 +00:00
Adam Langley
1df63e93f9 Fix a couple of issues with building with strict C99.
C99 doesn't, technically, allow empty statements. Thus if a #define'ed
function ends in a semicolon, and the use of it also ends in a
semicolon, then the compiler sees “;;” at the end.

Since a choice has to be made, I prefer that the semicolon exist at the
“callsite” of a #define'ed fuction. But I haven't gone and changed
everything to follow that in this patch.

Change-Id: I1343e52a5ac6255db49aa053048d0df3225bcf43
Reviewed-on: https://boringssl-review.googlesource.com/3890
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-03-18 21:17:40 +00:00
Adam Langley
0e782a9eb3 Add AEADs for AES-CTR with HMAC-SHA256.
Change-Id: Id035d2c6ab9c6ae034326c313ffe35e0d035dec1
Reviewed-on: https://boringssl-review.googlesource.com/3911
Reviewed-by: Adam Langley <agl@google.com>
2015-03-18 21:16:55 +00:00
Adam Langley
ca8feeb301 Add support for 3DES ECB.
At least the linker can discard this function in the cases where nobody
is calling it.

Change-Id: I30050e918e6bc1dd9c97cc70f3a56408701abebc
Reviewed-on: https://boringssl-review.googlesource.com/3724
Reviewed-by: Adam Langley <agl@google.com>
2015-03-18 19:55:14 +00:00
Adam Langley
7282738bad Add DES_set_odd_parity.
Because NTLM authentication is still a thing.

Change-Id: I3308a8431c82f0b614e09ce3e5efac1526881f1e
Reviewed-on: https://boringssl-review.googlesource.com/3723
Reviewed-by: Adam Langley <agl@google.com>
2015-03-18 19:54:53 +00:00
Adam Langley
3f92d21094 Add SSL_get_rc4_state.
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>
2015-03-18 19:54:34 +00:00
Adam Langley
524e717b87 Add a callback for DDoS protection.
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>
2015-03-18 19:53:29 +00:00
Brian Smith
ab2a8e03d9 Fix duplicate lock IDs & simplify lock ID maintenance.
* Eliminate the possibility of multiple lock IDs having the same
  value (CRYPTO_LOCK_FIPS2 and CRYPTO_LOCK_OBJ were both 40 prior to
  this commit).
* Remove unused lock IDs.
* Automatically guarantee that lock IDs and lock names stay in sync.

Change-Id: If20e462db1285fa891595a7e52404ad011ff16f6
Reviewed-on: https://boringssl-review.googlesource.com/3923
Reviewed-by: Adam Langley <agl@google.com>
2015-03-17 23:58:20 +00:00
David Benjamin
1b3a95122d Document exactly how the stateful AEADs are weird.
Probably worth spelling that out.

Change-Id: Ie8815fc645e2836f4fb5bf7d09df1e5326751544
Reviewed-on: https://boringssl-review.googlesource.com/3970
Reviewed-by: Adam Langley <agl@google.com>
2015-03-17 23:55:56 +00:00
Brian Smith
a42b4163f8 Remove remaining remnants of RIPEMD-160 support.
Change-Id: I59d06bcb9245ba93d3c3b63afbc24d6cef7c5af4
Reviewed-on: https://boringssl-review.googlesource.com/3925
Reviewed-by: Adam Langley <agl@google.com>
2015-03-17 21:03:42 +00:00
Brian Smith
4df48dd30f Define more OPENSSL_NO_xxx flags in opensslfeatures.h.
Change-Id: I464159dd03a2ea9a5e01452888fda86a5af51024
Reviewed-on: https://boringssl-review.googlesource.com/3924
Reviewed-by: Adam Langley <agl@google.com>
2015-03-14 00:21:01 +00:00
David Benjamin
e0ba4dddf6 Normalize all EVP_PKEY_CTX_ctrl return values.
No code within BoringSSL or Google (grep for EVP_PKEY_CTX_(ctrl|get|set)) is
sensitive to the various failure cases. Normalize it all to 0/1 for simplicity.

This does carry a slight risk: any new ctrl hooks we import from upstream that,
like EVP_PKEY_CTX_get_rsa_oaep_md, return something other than success/failure
cannot be called directly via EVP_PKEY_CTX_ctrl. They instead need to
internally be routed through a struct like CBS and only called through the
wrappers. To that end, unexport EVP_PKEY_CTX_ctrl and require that callers use
the wrappers. No code in Google uses it directly and, if need be, switching to
the wrapper would be an incredibly upstreamable patch.

Change-Id: I3fd4e5a1a0f3d4d1c4122c52d4c74a5105b99cd5
Reviewed-on: https://boringssl-review.googlesource.com/3874
Reviewed-by: Adam Langley <agl@google.com>
2015-03-13 19:39:42 +00:00
David Benjamin
bc5d8ee0d4 Route EVP_PKEY_CTRL_GET_RSA_OAEP_LABEL through a CBS.
This is the only EVP_PKEY ctrl hook which returns something other than a
boolean.

Change-Id: Ic226aef168abdf72e5d30e8264a559ed5039a055
Reviewed-on: https://boringssl-review.googlesource.com/3873
Reviewed-by: Adam Langley <agl@google.com>
2015-03-13 19:19:59 +00:00
David Benjamin
e60202797d Move EVP_R_COMMAND_NOT_SUPPORTED into individual EVP_PKEY ctrl hooks.
This removes another place where we're internally sensitive to the
success/failure conditions.

Change-Id: I18fecf6457e841ba0afb718397b9b5fd3bbdfe4c
Reviewed-on: https://boringssl-review.googlesource.com/3872
Reviewed-by: Adam Langley <agl@google.com>
2015-03-13 19:18:39 +00:00
David Benjamin
33c8d60a1f Remove EVP_PKEY_CTRL_DIGESTINIT -2 special-case in md_begin_digest.
All EVP_PKEY types return 1 on that. (It can go away entirely when
EVP_PKEY_HMAC is gone.) This removes a place internally where we're sensitive
to the failure code.

Change-Id: Ic6cda2da9337ba7ef1c66a18e40c5dcc44fcf840
Reviewed-on: https://boringssl-review.googlesource.com/3871
Reviewed-by: Adam Langley <agl@google.com>
2015-03-13 19:17:59 +00:00
David Benjamin
4c31123bfc Remove finish_mac_length from SSL3_ENC_METHOD.
It's unused.

Change-Id: I234c19990758ad761a72d5b0abe404a8583705a7
Reviewed-on: https://boringssl-review.googlesource.com/3768
Reviewed-by: Adam Langley <agl@google.com>
2015-03-10 01:16:17 +00:00
David Benjamin
f7f0f3a74b Remove ccs_header_st.
It doesn't do anything.

Change-Id: I0bba4e22a0b2053aae491d0ad695c892803cafca
Reviewed-on: https://boringssl-review.googlesource.com/3767
Reviewed-by: Adam Langley <agl@google.com>
2015-03-10 01:13:01 +00:00
David Benjamin
ee562b987e Get rid of the RSMBLY macros.
Turn them into static functions that take in an hm_fragment. It's not
immediately obvious that the frag_off/frag_len bounds checks and the msg_len
consistency check are critical to avoiding an out-of-bounds write. Better to
have dtls1_hm_fragment_mark also check internally.

Also rework the bitmask logic to be clearer and avoid a table.

Change-Id: Ica54e98f66295efb323e033cb6c67ab21e7d6cbc
Reviewed-on: https://boringssl-review.googlesource.com/3765
Reviewed-by: Adam Langley <agl@google.com>
2015-03-10 01:11:21 +00:00
David Benjamin
8cb7a7c0d5 Fix types of hm_header_st.
Replace unsigned long with the appropriate sized integer type.

Change-Id: I7b4641d84568f6c11efa25350a9e488a556fc92e
Reviewed-on: https://boringssl-review.googlesource.com/3766
Reviewed-by: Adam Langley <agl@google.com>
2015-03-10 01:10:09 +00:00
David Benjamin
7538122ca6 Rework DTLS handshake message reassembly logic.
Notably, drop all special cases around receiving a message in order and
receiving a full message. It makes things more complicated and was the source
of bugs (the MixCompleteMessageWithFragments tests added in this CL did not
pass before). Instead, every message goes through an hm_fragment, and
dtls1_get_message always checks buffered_messages to see if the next is
complete.

The downside is that we pay one more copy of the message data in the common
case. This is only during connection setup, so I think it's worth the
simplicity. (If we want to optimize later, we could either tighten
ssl3_get_message's interface to allow the handshake data being in the
hm_fragment's backing store rather than s->init_buf or swap out s->init_buf
with the hm_fragment's backing store when a mesasge completes.

This CL does not address ssl_read_bytes being an inappropriate API for DTLS.
Future work will revise the handshake/transport boundary to align better with
DTLS's needs. Also other problems that I've left as TODOs.

Change-Id: Ib4570d45634b5181ecf192894d735e8699b1c86b
Reviewed-on: https://boringssl-review.googlesource.com/3764
Reviewed-by: Adam Langley <agl@google.com>
2015-03-10 00:56:45 +00:00
David Benjamin
f46cea8cd8 Fix the derivation of SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD.
It happens to give the same value anyway (64 + 16), but only on accident.

Change-Id: I1415f4015e3de472dbeb9ada0d92607c9d1bcd40
Reviewed-on: https://boringssl-review.googlesource.com/3780
Reviewed-by: Adam Langley <agl@google.com>
2015-03-06 18:56:57 +00:00
Adam Langley
e023ad2d83 Fix SHA-384 and -512 in NO_ASM mode.
This transcription bug comes from the start of BoringSSL and, as you can
imagine, was a complete delight to track down.

Change-Id: I3051934195098a1d3bf893b154389ec7f14d3609
Reviewed-on: https://boringssl-review.googlesource.com/3740
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-03-05 22:44:00 +00:00
David Benjamin
b34f510b3b Don't delay-initialize legacy AEADs.
Instead, add a separate init_with_direction hook. Normal AEADs ignore the
direction, while legacy AEADs must be initialized with it. This avoids
maintaining extra state to support the delayed initialization.

Change-Id: I25271f0e56ee2783a2fd4d4026434154d58dc0a8
Reviewed-on: https://boringssl-review.googlesource.com/3731
Reviewed-by: Adam Langley <agl@google.com>
2015-03-05 21:25:05 +00:00
David Benjamin
23721e3705 Forbid reusing HMAC key without reusing the hash function.
There's no good reason to do this, and it doesn't work; HMAC checks the length
of the key and runs it through the hash function if too long. The reuse occurs
after this check.

This allows us to shave 132 bytes off HMAC_CTX as this was the only reason it
ever stored the original key. It also slightly simplifies HMAC_Init_ex's
logic.

Change-Id: Ib56aabc3630b7178f1ee7c38ef6370c9638efbab
Reviewed-on: https://boringssl-review.googlesource.com/3733
Reviewed-by: Adam Langley <agl@google.com>
2015-03-02 23:16:12 +00:00
Adam Langley
4e581b5378 Add support for reading PKCS#7 data from PEM files.
(There are times when I actually miss C++ templates.)

Change-Id: I3db56e4946ae4fb919105fa33e2cfce3c7542d37
Reviewed-on: https://boringssl-review.googlesource.com/3700
Reviewed-by: Adam Langley <agl@google.com>
2015-02-27 21:02:38 +00:00
Adam Langley
50073e8c5e Add functions to parse and generate PKCS#7 files with CRLs.
Change-Id: I7b6acc9004beb7b7090de1837814ccdff2e9930e
Reviewed-on: https://boringssl-review.googlesource.com/3680
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-02-27 19:48:19 +00:00
David Benjamin
114ddebbf6 Unexport EC_GROUP_copy.
EC_GROUP_copy is an rather unfriendly function; it doesn't work if the groups
have different[*] underlying EC_METHODs, but this notion is not exposed through
the API. I found no callers of EC_GROUP_copy in external code.

This leaves the precompute_mult functions as the remaining mutable API exposed
through EC_GROUP.

[*] Though, of the two EC_METHODs right now, simple.c is entirely unused.

Change-Id: Iabb52518005250fb970e12b3b0ea78b4f6eff4a0
Reviewed-on: https://boringssl-review.googlesource.com/3631
Reviewed-by: Adam Langley <agl@google.com>
2015-02-27 19:43:02 +00:00
David Benjamin
6f5c0f4471 Add tests for installing the certificate on the early callback.
Test both asynchronous and synchronous versions. This callback is somewhat
different from others. It's NOT called a second time when the handshake is
resumed. This appears to be intentional and not a mismerge from the internal
patch. The caller is expected to set up any state before resuming the handshake
state machine.

Also test the early callback returning an error.

Change-Id: If5e6eddd7007ea5cdd7533b4238e456106b95cbd
Reviewed-on: https://boringssl-review.googlesource.com/3590
Reviewed-by: Adam Langley <agl@google.com>
2015-02-25 21:22:35 +00:00
Adam Langley
7c21925a10 EC_GROUP_cmp should return zero if the groups match.
(I got this wrong when reading the OpenSSL code.)

Change-Id: Ib289ef41d0ab5a3157ad8b9454d2de96d1f86c22
Reviewed-on: https://boringssl-review.googlesource.com/3620
Reviewed-by: Adam Langley <agl@google.com>
2015-02-25 21:13:02 +00:00
David Benjamin
3f5917f320 EVP_CIPHER_CTX_cleanup cannot fail.
There is exactly one implementation and it doesn't fail. Plus a cleanup
function that can fail is very bad manners; the caller has no choice but to
leak at that point.

Change-Id: I5b524617ef37bc7d92273472fa742416ea7dfd43
Reviewed-on: https://boringssl-review.googlesource.com/3564
Reviewed-by: Adam Langley <agl@google.com>
2015-02-23 19:44:02 +00:00
Adam Langley
04c36b5062 Never set RC4_CHAR.
RC4_CHAR is a bit in the x86(-64) CPUID information that switches the
RC4 asm code from using an array of 256 uint32_t's to 256 uint8_t's. It
was originally written for the P4, where the uint8_t style was faster.

(On modern chips, setting RC4_CHAR took RC4-MD5 from 458 to 304 MB/s.
Although I wonder whether, on a server with many connections, using less
cache wouldn't be better.)

However, I'm not too worried about a slowdown of RC4 on P4 systems these
days (the last new P4 chip was released nine years ago) and I want the
code to be simplier.

Also, RC4_CHAR was set when the CPUID family was 15, but Intel actually
lists 15 as a special code meaning "also check the extended family
bits", which the asm didn't do.

The RC4_CHAR support remains in the RC4 asm code to avoid drift with
upstream.

Change-Id: If3febc925a83a76f453b9e9f8de5ee43759927c6
Reviewed-on: https://boringssl-review.googlesource.com/3550
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-02-20 23:59:59 +00:00
Adam Langley
44972944fd Add SSL_get_cipher_by_value.
(Which is just an exported wrapper around ssl3_get_cipher_by_value.)

Change-Id: Ibba166015ce59e337ff50963ba20237ac4949aaf
Reviewed-on: https://boringssl-review.googlesource.com/3543
Reviewed-by: Adam Langley <agl@google.com>
2015-02-20 23:44:17 +00:00
Adam Langley
5f0efe06e1 Use SSL_MODE_SEND_FALLBACK_SCSV.
Upstream settled in this API, and it's also the one that we expect
internally and that third_party code will expect.

Change-Id: Id7af68cf0af1f2e4d9defd37bda2218d70e2aa7b
Reviewed-on: https://boringssl-review.googlesource.com/3542
Reviewed-by: Adam Langley <agl@google.com>
2015-02-20 23:44:09 +00:00
Adam Langley
93531bd70f Add the CTX parameter back to EC_GROUP_cmp.
It was a mistake to remove this in the first place.

Change-Id: Icd97b4db01e49151daa41dd892f9da573ddc2842
Reviewed-on: https://boringssl-review.googlesource.com/3541
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-02-20 23:33:55 +00:00
Adam Langley
d3a73360fa Rename safe_stack.h to safestack.h.
This empty header file exists only to make older code compile. But I
named it incorrectly! Upstream doesn't have the underscore in the name.

Change-Id: I96654b7e17d84a5f2810e6eb20fe7bfb22f855fd
Reviewed-on: https://boringssl-review.googlesource.com/3540
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-02-20 23:33:48 +00:00
David Benjamin
dd1ca99da4 Remove X509_get_pubkey_parameters.
It's never called in outside code. This too seems to be a remnant of the DSA
PKIX optional parameter stuff. This is confirmed both by a removed comment and
by the brief documentation at http://www.umich.edu/~x509/ssleay/x509_pkey.html

RFC 5480 does not allow ECDSA keys to be missing parameters, so this logic is
incorrect for ECDSA anyway.  It was also failing to check
EVP_PKEY_copy_parameters' return value. And that logic looks pretty suspect if
you have a chain made up multiple certificate types.

Change-Id: Id6c60659a0162356c7f3eae5c797047366baae1c
Reviewed-on: https://boringssl-review.googlesource.com/3485
Reviewed-by: Adam Langley <agl@google.com>
2015-02-17 23:15:47 +00:00
David Benjamin
9d0847ae6d Add some missing error failure checks.
Found while diagnosing some crashes and hangs in the malloc tests. This (and
the follow-up) get us further but does not quite let the malloc tests pass
quietly, even without valgrind. DTLS silently ignores some malloc failures
(confusion with silently dropping bad packets) which then translate to hangs.

Change-Id: Ief06a671e0973d09d2883432b89a86259e346653
Reviewed-on: https://boringssl-review.googlesource.com/3482
Reviewed-by: Adam Langley <agl@google.com>
2015-02-17 20:55:56 +00:00
David Benjamin
ed7c475154 Rename cutthrough to False Start.
False Start is the name it's known by now. Deprecate the old API and expose new
ones with the new name.

Change-Id: I32d307027e178fd7d9c0069686cc046f75fdbf6f
Reviewed-on: https://boringssl-review.googlesource.com/3481
Reviewed-by: Adam Langley <agl@google.com>
2015-02-17 20:51:22 +00:00
David Benjamin
a54e2e85ee Remove server-side HelloVerifyRequest support.
I found no users of this. We can restore it if needbe, but I don't expect
anyone to find it useful in its current form. The API is suspect for the same
reasons DTLSv1_listen was. An SSL object is stateful and assumes you already
have the endpoint separated out.

If we ever need it, server-side HelloVerifyRequest and DTLSv1_listen should be
implemented by a separate stateless listener that statelessly handles
cookieless ClientHello + HelloVerifyRequest. Once a ClientHello with a valid
cookie comes in, it sets up a stateful SSL object and passes control along to
that.

Change-Id: I86adc1dfb6a81bebe987784c36ad6634a9a1b120
Reviewed-on: https://boringssl-review.googlesource.com/3480
Reviewed-by: Adam Langley <agl@google.com>
2015-02-17 20:50:08 +00:00
Adam Langley
6899b19464 Update API to use (char *) for email addresses and hostnames.
Reduces number of silly casts in OpenSSL code and likely most
applications.  Consistent with (char *) for "peername" value from
X509_check_host() and X509_VERIFY_PARAM_get0_peername().

(Imported from upstream's e83c913723fac7432a7706812f12394aaa00e8ce.)

Change-Id: Id0fc11773a0cee8933978cd4bdbd8251fd7cfb5f
2015-02-13 11:00:48 -08:00
Adam Langley
6f8c366989 Set optional peername when X509_check_host() succeeds.
Pass address of X509_VERIFY_PARAM_ID peername to X509_check_host().

(Imported from upstream's 55fe56837a65ff505b492aa6aee748bf5fa91fec.)

Change-Id: Ic21bfb361b8eb25677c4c2175882fa95ea44fc31
2015-02-13 11:00:48 -08:00
Adam Langley
d0f5df2d71 New peername element in X509_VERIFY_PARAM_ID.
Declaration, memory management, accessor and documentation.

(Imported from upstream's 1eb57ae2b78c119bfba7ab647951130e968d1664.)

Change-Id: Ifa9672e46445e44a78001b0f9430a93c138d73d7
2015-02-13 11:00:47 -08:00
Adam Langley
589963f79e Multiple verifier reference identities.
(Imported from upstream's 8abffa4a73fcbf6536e0a42d736ed9211a8204ea,
9624b50d51de25bb2e3a72e81fe45032d80ea5c2 and
41e3ebd5abacfdf98461cdeb6fa97a4175b7aad3.)

Change-Id: Ic9099eb5704b19b4500229e89351371cc6184f9d
2015-02-13 10:59:10 -08:00
Adam Langley
a1048a772f Add sk_deep_copy and its macro.
The next change imported from upstream needs this function.

Change-Id: I547efa1f7f46f0558e88047837a26ede32b19275
2015-02-13 10:59:10 -08:00
Adam Langley
2d96a67218 Rerun make_macros.sh.
clang-format has changed a little. This is a semantic no-op but it makes
the diff in the next change smaller.

Change-Id: Ia492a81340a868b888d619a1c7740d1a86845e92
2015-02-13 10:59:10 -08:00
David Benjamin
689be0f4b7 Reset all the error codes.
This saves about 6-7k of error data.

Change-Id: Ic28593d4a1f5454f00fb2399d281c351ee57fb14
Reviewed-on: https://boringssl-review.googlesource.com/3385
Reviewed-by: Adam Langley <agl@google.com>
2015-02-11 23:12:08 +00:00
David Benjamin
96396b3aaa Fix cross-module errors.
Some files in crypto/x509 were moved from crypto/asn1, so they emit errors from
another module. Fix make_errors.go to account for this: cross module errors
must use the foreign module as the first argument to OPENSSL_PUT_ERROR. Both
the function code and the error code should be declared in the foreign module.

Update make_errors.go to ignore cross-module error lines when deciding which
function tokens to emit.

Change-Id: Ic38377ddd56e22d033ef91318c30510762f6445d
Reviewed-on: https://boringssl-review.googlesource.com/3383
Reviewed-by: Adam Langley <agl@google.com>
2015-02-11 23:11:55 +00:00
Adam Langley
cf310a6197 Remove more bits of ERR_STRING_DATA.
Also, Clang doesn't like static asserts with the same message and
ERR_free_strings should still free the error queues, although it's badly
misnamed now.

Change-Id: Ibff8eb50f93c0b56c3eeb17a300e8501a31c3ab8
Reviewed-on: https://boringssl-review.googlesource.com/3370
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-02-10 02:10:46 +00:00
Adam Langley
29b186736c Precompute sorted array for error strings.
Previously, error strings were kept in arrays for each subdirectory and
err.c would iterate over them all and insert them at init time to a hash
table.

This means that, even if you have a shared library and lots of processes
using that, each process has ~30KB of private memory from building that
hash table.

This this change, all the error strings are built into a sorted list and
are thus static data. This means that processes can share the error
information and it actually saves binary space because of all the
pointer overhead in the old scheme. Also it saves the time taken
building the hash table at startup.

This removes support for externally-supplied error string data.

Change-Id: Ifca04f335c673a048e1a3e76ff2b69c7264635be
2015-02-09 17:35:31 -08:00
David Benjamin
65226257c1 Add SSL_CIPHER_get_rfc_name.
OpenSSL's internal names for the ciphers are not the standard ones and are not
easy to consistently map to the standard ones. Add an API to get the real names
out. (WebRTC wants an API to get the standard names out.)

Also change some incorrect flags on SHA-256 TLS 1.2 ciphers;
SSL_HANDSHAKE_MAC_DEFAULT and SSL_HANDSHAKE_MAC_SHA256 are the same after TLS
1.2. A TLS 1.2 cipher should be tagged explicitly with SHA-256. (This avoids
tripping a check in SSL_CIPHER_get_rfc_name which asserts that default-hash
ciphers only ever use SHA-1 or MD5 for the bulk cipher MAC.)

Change-Id: Iaec2fd4aa97df29883094d3c2ae60f0ba003bf07
2015-02-09 17:31:28 -08:00
David Benjamin
ed3d302190 Unrefcount SSL*.
Nothing ever increments the count.

Change-Id: I0b9396e0f5755fa7d9cfd522e17910c760c1aebd
Reviewed-on: https://boringssl-review.googlesource.com/3360
Reviewed-by: Adam Langley <agl@google.com>
2015-02-10 01:23:51 +00:00
David Benjamin
3363984d0d Add SSL_SESSION_up_ref.
The fact that an SSL_SESSION is reference-counted is already part of the API.
If an external application (like, say, the test code) wishes to participate, we
should let it.

Change-Id: If04d26a35141da14fd8d917de6cc1c10537ad11a
Reviewed-on: https://boringssl-review.googlesource.com/3344
Reviewed-by: Adam Langley <agl@google.com>
2015-02-09 23:34:41 +00:00
David Benjamin
ccf74f8085 Revise SSL_cutthrough_complete and SSL_in_init.
This makes the following changes:

- SSL_cutthrough_complete no longer rederives whether cutthrough happened and
  just maintains a handshake bit.

- SSL_in_init no longer returns true if we are False Starting but haven't
  completed the handshake. That logic was awkward as it depended on querying
  in_read_app_data to force SSL_read to flush the entire handshake. Defaulting
  SSL_in_init to continue querying the full handshake and special-casing
  SSL_write is better. E.g. the check in bidirectional SSL_shutdown wants to know
  if we're in a handshake. No internal consumer of
  SSL_MODE_HANDSHAKE_CUTTHROUGH ever queries SSL_in_init directly.

- in_read_app_data is gone now that the final use is dead.

Change-Id: I05211a116d684054dfef53075cd277b1b30623b5
Reviewed-on: https://boringssl-review.googlesource.com/3336
Reviewed-by: Adam Langley <agl@google.com>
2015-02-09 20:00:43 +00:00
Adam Langley
4e04ee8786 Remove support for dynamic METHODs.
The ENGINE code had a concept of a stable-ABI for METHODs, because that
might be a useful thing in the future when people want to have blobs
that wrap PKCS#11 or something.

However, at the moment nobody uses this feature and it didn't work very
well anyway: I hadn't updated |ENGINE_free| to free them all and
|set_method| was copying the methods, but not resetting the |is_static|
flag.

This change removes support for non-static methods. We can always put it
back later if we need.

Change-Id: Ic7401c8cb1cadd46b26a215f85bc48562efe9919
Reviewed-on: https://boringssl-review.googlesource.com/3300
Reviewed-by: Adam Langley <agl@google.com>
2015-02-06 20:56:10 +00:00
David Benjamin
afbc63fc2f Simplify DTLS epoch rewind.
SSL_AEAD_CTX ownership is currently too confusing. Instead, rely on the lack of
renego, so the previous epoch always uses the NULL cipher. (Were we to support
DTLS renego, we could keep track of s->d1->last_aead_write_ctx like
s->d1->last_write_sequence, but it isn't worth it.)

Buffered messages also tracked an old s->session, but this is unnecessary. The
s->session NULL check in tls1_enc dates to the OpenSSL initial commit and is
redundant with the aead NULL check.

Change-Id: I9a510468d95934c65bca4979094551c7536980ae
Reviewed-on: https://boringssl-review.googlesource.com/3234
Reviewed-by: Adam Langley <agl@google.com>
2015-02-03 20:34:06 +00:00
David Benjamin
0ea8dda93e Remove alert_fragment and handshake_fragment.
Nothing recognized through those codepaths is fragmentable in DTLS. Also remove
an unnecessary epoch check. It's not possible to process a record from the
wrong epoch.

Change-Id: I9d0f592860bb096563e2bdcd2c8e50a0d2b65f59
Reviewed-on: https://boringssl-review.googlesource.com/3232
Reviewed-by: Adam Langley <agl@google.com>
2015-02-03 19:10:08 +00:00
David Benjamin
2cdace913e Forbid initiating renegotiate in DTLS.
We will not support any form of DTLS renego.

Change-Id: I6eab4ed12a131ad27fdb9b5ea7cc1f35d872cd43
Reviewed-on: https://boringssl-review.googlesource.com/3230
Reviewed-by: Adam Langley <agl@google.com>
2015-02-03 19:06:19 +00:00
David Benjamin
d4f924c4b1 Remove SSL_renegotiate_abbreviated.
It has no callers in internal code.

Change-Id: I53cf1769b71be6a0441533b6af7d3f64aab5098a
Reviewed-on: https://boringssl-review.googlesource.com/3219
Reviewed-by: Adam Langley <agl@google.com>
2015-02-03 19:06:12 +00:00
David Benjamin
c39be857a8 Reformat dtls1.h.
Change-Id: If035f44febec2a2717c3aba03f6d05ae290d247b
Reviewed-on: https://boringssl-review.googlesource.com/3217
Reviewed-by: Adam Langley <agl@google.com>
2015-02-03 19:05:39 +00:00
Doug Hogan
5ba305643f Don't accept tag number 31 (long form identifier octets) in CBB_add_asn1.
Tag number 31 is a long form tag that requires multiple octets.  It
cannot be handled by adding a single uint8.  Changed CBB_add_asn1()
to return 0 when it is passed in the extension for tag 31.

Change-Id: Ia33936d4f174d1a7176eb11da0b5c7370efb9416
2015-02-03 11:03:59 -08:00
Doug Hogan
2683af70e7 Fix typo and ASN.1 tag number range comment in bytestring.h.
CBS_get_asn1() and CBS_get_any_asn1_element() only support the single
byte ASN.1 identifier octets (aka short form tags).  Tag number 31 is
the start of the multi-byte long form per X.690 section 8.1.2.4.

Change-Id: I892600f4946e880a4ff03d219181116ef04f5372
Reviewed-on: https://boringssl-review.googlesource.com/3241
Reviewed-by: Adam Langley <agl@google.com>
2015-02-03 01:03:59 +00:00
David Benjamin
e33b9b0a87 Remove dtls1_timeout_st.
All but one field is a no-op.

Change-Id: Ib7bc59a12ce792d5e42fb6e04a4aff54f42643a9
Reviewed-on: https://boringssl-review.googlesource.com/3213
Reviewed-by: Adam Langley <agl@google.com>
2015-02-03 00:41:07 +00:00
David Benjamin
377fc3160c Document DTLS timeout API and add current_time_cb hook.
This is so the tests needn't be sensitive to the clock. It is, unfortunately, a
test-only hook, but the DTLS retransmit/timeout logic more-or-less requires it
currently. Use this hook to, for now, freeze the clock at zero. This makes the
tests deterministic.

It might be worth designing a saner API in the future. The current one,
notably, requires that the caller's clock be compatible with the one we
internally use. It's also not clear whether the caller needs to call
DTLSv1_handle_timeout or can just rely on the state machine doing it internally
(as it does do). But mock clocks are relatively tame and WebRTC wants to
compile against upstream OpenSSL for now, so we're limited in how much new API
we can build.

Change-Id: I7aad51570596f69275ed0fc1a8892393e4b7ba13
Reviewed-on: https://boringssl-review.googlesource.com/3210
Reviewed-by: Adam Langley <agl@google.com>
2015-02-03 00:39:44 +00:00
Adam Langley
2b2d66d409 Remove string.h from base.h.
Including string.h in base.h causes any file that includes a BoringSSL
header to include string.h. Generally this wouldn't be a problem,
although string.h might slow down the compile if it wasn't otherwise
needed. However, it also causes problems for ipsec-tools in Android
because OpenSSL didn't have this behaviour.

This change removes string.h from base.h and, instead, adds it to each
.c file that requires it.

Change-Id: I5968e50b0e230fd3adf9b72dd2836e6f52d6fb37
Reviewed-on: https://boringssl-review.googlesource.com/3200
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2015-02-02 19:14:15 +00:00
David Benjamin
f4600adb0e Add missing OPENSSL_EXPORTs.
Forgot to export those when adding them.

Change-Id: I206f488eb38e5ff55b8c212911aced0cf28b7664
Reviewed-on: https://boringssl-review.googlesource.com/3090
Reviewed-by: Adam Langley <agl@google.com>
2015-01-28 20:38:33 +00:00
Adam Langley
b4a494cc32 Reformat SSL/TLS headers.
Change-Id: Id9d848a6bb13a414d7c199674ff980c5011f92cf
Reviewed-on: https://boringssl-review.googlesource.com/3000
Reviewed-by: Adam Langley <agl@google.com>
2015-01-26 20:23:09 +00:00
David Benjamin
2a0e72f08a Fix segfault with empty fields as last in the config.
(Imported from upstream's 2747d73c1466c487daf64a1234b6fe2e8a62ac75.)

Also fix up some stylistic issues in conf.c and clarify empty case in
documentation.

Change-Id: Ibacabfab2339d7566d51db4b3ac4579aec0d1fbf
Reviewed-on: https://boringssl-review.googlesource.com/3023
Reviewed-by: Adam Langley <agl@google.com>
2015-01-26 18:37:47 +00:00