Commit Graph

3854 Commits

Author SHA1 Message Date
David Benjamin
45738dd496 Move new_cipher and new_session to SSL_HANDSHAKE.
This lets us trim another two pointers of per-connection state.

Change-Id: I2145d529bc25b7e24a921d01e82ee99f2c98867c
Reviewed-on: https://boringssl-review.googlesource.com/13804
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-17 20:48:31 +00:00
David Benjamin
12709db355 Stop reporting SSL_R_SHUTDOWN_WHILE_IN_INIT.
This effectively reverts b9824e2417. This
error seems to have mostly just caused confusion in logs and the
occasional bug around failing to ERR_clear_error. Consumers tend to
blindly call SSL_shutdown when tearing down an SSL (to avoid
invalidating sessions). This means handshake failures trigger two
errors, which is screwy.

Go back to the old behavior where SSL_shutdown while SSL_in_init
silently succeeds.

Change-Id: I1fcfc92d481b97c840847dc39afe59679cd995f2
Reviewed-on: https://boringssl-review.googlesource.com/13909
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-02-17 19:49:59 +00:00
David Benjamin
c92f29dcc5 Remove freelist_max_len.
Node has since been patched.

Change-Id: If25eecabfc83ef9fd36c531c9ca9db2911de010e
Reviewed-on: https://boringssl-review.googlesource.com/13908
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
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2017-02-17 17:41:42 +00:00
David Benjamin
ced1895961 Fix mis-import of upstream cc598f321fbac9c04da5766243ed55d55948637d.
Noticed this comparing our and upstream's ASN.1 code. Somehow I missed
this line in cb852981cd. This change is a
no-op as our only ASN1_EX_COMBINE field is an ASN1_CHOICE which does not
read aclass.

Change-Id: I011f2f6eadd3939ec5f0b346c4eb7d14e406e3cd
Reviewed-on: https://boringssl-review.googlesource.com/13833
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-17 01:21:29 +00:00
David Benjamin
c4d5925ca6 Fix various malloc failure checks.
asn1_template_noexp_d2i call ASN1_item_ex_free(&skfield,...) on error.

Reworked error handling in asn1_item_ex_combine_new:
- call ASN1_item_ex_free and return the correct error code if
  ASN1_template_new failed.
- dont call ASN1_item_ex_free if ASN1_OP_NEW_PRE failed.

Reworked error handing in x509_name_ex_d2i and x509_name_encode.

(Imported from upstream's 748cb9a17f4f2b77aad816cf658cd4025dc847ee.)

I believe the tasn1_new.c change is a no-op since we have no
ASN1_OP_NEW_PRE hooks anymore. I'm not sure what the commit message is
referring to with ASN1_template_new. It also seems odd as
ASN1_item_ex_free should probably be able to survive *pval being NULL.
Whatever.

We'd previously tried to fix x509_name_ex_d2i, but I think ours wasn't
quite right. (This thing is a mess...) I've aligned that function with
upstream.

Change-Id: Ie71521cd8a1ec357876caadd13be1ce247110f76
Reviewed-on: https://boringssl-review.googlesource.com/13831
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-17 01:11:21 +00:00
David Benjamin
ec1d9637e1 Fix crashes in EVP_CIPHER if cipher_data was not allocated.
(Imported from upstream's 1222d273d36277f56c3603a757240c386d55f318.)

We'd fixed half of these, but the other half are probably unreachable
from code that ran under malloc tests, so we never noticed. It's
puzzling why upstream did both this and
166e365ed84dfabec3274baf8a9ef8aa4e677891. It seems you only need one of
them.

Change-Id: I08074358134180c6661600b66958ba861e7726fb
Reviewed-on: https://boringssl-review.googlesource.com/13832
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-17 01:11:14 +00:00
David Benjamin
fb2ac390f5 Convert ec_test to GTest.
BUG=129

Change-Id: Id7a92285601ff4276f4015eaee290bf77aa22b47
Reviewed-on: https://boringssl-review.googlesource.com/13628
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-16 23:33:48 +00:00
David Benjamin
c5be327ef9 Tidy up EVP_PKEY_CTX_dup and fix malloc error crash.
If copy fails, we shouldn't call cleanup. Also remove some pointless
NULL checks after EVP_PKEY_up_ref.

See also upstream's 748cb9a17f4f2b77aad816cf658cd4025dc847ee.

Change-Id: I2acb6892cde1ab662ca6a620d87179f9be609cba
Reviewed-on: https://boringssl-review.googlesource.com/13830
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-16 23:24:53 +00:00
David Benjamin
3e8b782c0c Remove "raw" versions of PKCS8_encrypt and PKCS8_decrypt.
These were added in an attempt to deal with the empty vs. NULL confusion
in PKCS#12. Instead, PKCS8_encrypt and PKCS8_decrypt already treated
NULL special. Since we're stuck with supporting APIs like those anyway,
Chromium has been converted to use that feature. This cuts down on the
number of APIs we need to decouple from crypto/asn1.

BUG=54

Change-Id: Ie2d4798d326c5171ea5d731da0a2c11278bc0241
Reviewed-on: https://boringssl-review.googlesource.com/13885
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-16 23:04:15 +00:00
Adam Langley
628f518cdc bn/asm/x86_64*: add DWARF CFI directives.
(Imports upstream's 76e624a003db22db2d99ece04a15e20fe44c1fbe.)

Also includes the following fixes:
https://github.com/openssl/openssl/pull/2582
https://github.com/openssl/openssl/pull/2655

Change-Id: I6086a87a534d152cdbff104c62ad9dcd9b4e012a
Reviewed-on: https://boringssl-review.googlesource.com/13783
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-16 23:03:48 +00:00
David Benjamin
b91b9a8967 Convert rsa_test to GTest.
BUG=129

Change-Id: I603054193a20c2bcc3ac1724f9b29d6384d9f62a
Reviewed-on: https://boringssl-review.googlesource.com/13626
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-16 22:23:16 +00:00
David Benjamin
98f5dc30ba perlasm/x86_64-xlate.pl: recognize even offset(%reg) in cfa_expression.
This is handy when "offset(%reg)" is a perl variable.

(Imported from upstream's 1cb35b47db8462f5653803501ed68d33b10c249f.)

Change-Id: I2f03907a7741371a71045f98318e0ab9396a8fc7
Reviewed-on: https://boringssl-review.googlesource.com/13906
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-16 22:21:25 +00:00
David Benjamin
f3cc7a3366 perlasm/x86_64-xlate.pl: fix pair of typo-bugs in the new cfi_directive.
.cfi_{start|end}proc and .cfi_def_cfa were not tracked.

(Imported from upstream's 88be429f2ed04f0acc71f7fd5456174c274f2f76.)

Change-Id: I6abd480255218890349d139b62f62144b34c700d
Reviewed-on: https://boringssl-review.googlesource.com/13905
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2017-02-16 22:21:18 +00:00
David Benjamin
4c4053191a perlasm/x86_64-xlate.pl: typo fix in comment.
(Imported from upstream's fa3f83552f53447deced45579865cec9f55a947e.)

Change-Id: I659422a604b9d1d61334e09dff0c1de3aedb2d04
Reviewed-on: https://boringssl-review.googlesource.com/13904
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-16 22:20:33 +00:00
Adam Langley
cb1b333c2b x86_64 assembly pack: Win64 SEH face-lift.
(Imports upstream's 384e6de4c7e35e37fb3d6fbeb32ddcb5eb0d3d3f. Changes to
P-256 assembly dropped because we're so different there.)

 - harmonize handlers with guidelines and themselves;
 - fix some bugs in handlers;

Change-Id: Ic0b6a37bed6baedc50448c72fab088327f12898d
Reviewed-on: https://boringssl-review.googlesource.com/13782
Commit-Queue: Adam Langley <agl@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2017-02-16 21:55:04 +00:00
David Benjamin
dc90e39291 Clear the last GTest warning suppression.
TEST_P didn't work without fixing the suppression, so I went ahead and
fixed it across the entire project.

BUG=129

Change-Id: I5fe417f720040b627acfb3ed2063afdc85dfa908
Reviewed-on: https://boringssl-review.googlesource.com/13824
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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2017-02-16 19:03:32 +00:00
David Benjamin
5960a90964 Move sid_ctx from SSL/SSL_CTX to CERT.
This reduces us from seven different configuration patterns to six (see
comment #2 of linked bug). I do not believe there is any behavior change
here as SSL_set_SSL_CTX already manually copied the field. It now gives
us a nice invariant: SSL_set_SSL_CTX overrides all and only the
dual-SSL/SSL_CTX options hanging off of CERT.

BUG=123

Change-Id: I1ae06b791fb869917a6503cee41afb2d9be53d89
Reviewed-on: https://boringssl-review.googlesource.com/13865
Reviewed-by: David Benjamin <davidben@google.com>
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2017-02-16 18:59:24 +00:00
David Benjamin
0f28691d3d Fix a few typos.
(Imported from upstream's 7e12cdb52e3f4beff050caeecf3634870bb9a7c4.)

Change-Id: I9a6bba72c039e45ae5c0302a8a3dff7148cf1897
Reviewed-on: https://boringssl-review.googlesource.com/13869
Reviewed-by: David Benjamin <davidben@google.com>
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2017-02-16 18:50:51 +00:00
David Benjamin
26e1ff3dfb Remove some unnecessary return values.
I'm not sure why the SSL versions of these functions return int while
the SSL_CTX version returns void. It looks like this dates to
https://boringssl-review.googlesource.com/c/1491/, of which the initial
upload was an SSL_ctrl macro. I guess one of the ints got accidentally
preserved in conversion.

(No existing caller, aside from bssl_shim, checks the result.)

Change-Id: Id54309c1aa03462d520b9a45cdfdefdd2cdd1298
Reviewed-on: https://boringssl-review.googlesource.com/13866
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-16 18:21:47 +00:00
Steven Valdez
27a9e6ae1b Adding ALPN to session.
0-RTT requires matching the selected ALPN parameters against those in
the session. Stash the ALPN value in the session in TLS 1.3, so we can
recover it.

BUG=76

Change-Id: I8668b287651ae4deb0bf540c0885a02d189adee0
Reviewed-on: https://boringssl-review.googlesource.com/13845
Reviewed-by: David Benjamin <davidben@google.com>
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2017-02-16 17:33:23 +00:00
Alessandro Ghedini
f6d64efd19 tool: show if server sent SCT staple
Change-Id: I02e33a89345eaa935c06e3e6d88f7611049f1387
Reviewed-on: https://boringssl-review.googlesource.com/13884
Reviewed-by: David Benjamin <davidben@google.com>
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2017-02-16 01:20:37 +00:00
David Benjamin
b19b6626c5 Convert chacha_test to GTest.
BUG=129

Change-Id: Ibbd6d0804a75cb17ff33f64d4cdf9ae80b26e9df
Reviewed-on: https://boringssl-review.googlesource.com/13867
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2017-02-15 17:16:44 +00:00
David Benjamin
1d5a570627 Don't hardcode GTest sources.
We've already converted err_test and forgot. Instead, recognize GTest
vs. normal tests by their contents. This hack can be removed later once
all the tests are converted.

BUG=129

Change-Id: Iaa56e0f3c316faaee5458a4bba9b977dc6efb1e8
Reviewed-on: https://boringssl-review.googlesource.com/13844
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2017-02-15 15:27:01 +00:00
David Benjamin
83a321231b Move SCT lists and OCSP responses to CERT.
Recent changes added SSL-level setters to these APIs. Unfortunately,
this has the side effect of breaking SSL_set_SSL_CTX, which is how SNI
is typically handled. SSL_set_SSL_CTX is kind of a weird function in
that it's very sensitive to which of the hodge-podge of config styles is
in use. I previously listed out all the config styles here, but it was
long and unhelpful. (I counted up to 7.)

Of the various SSL_set_SSL_CTX-visible config styles, the sanest seems
to be to move it to CERT. In this case, it's actually quite reasonable
since they're very certificate-related.

Later we may wish to think about whether we can cut down all 7 kinds of
config styles because this is kinda nuts. I'm wondering we should do
CERT => SSL_CONFIG, move everything there, and make that be the same
structure that is dropped post-handshake (supposing the caller has
disavowed SSL_clear and renego). Fruit for later thought. (Note though
that comes with a behavior change for all the existing config.)

Change-Id: I9aa47d8bd37bf2847869e0b577739d4d579ee4ae
Reviewed-on: https://boringssl-review.googlesource.com/13864
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2017-02-15 00:42:38 +00:00
Adam Langley
004bff3a14 chacha/asm/chacha-x86_64.pl: add AVX512 path optimized for shorter inputs.
(Imports upstream's 3c274a6e2016b6724fbfe3ff1487efa2a536ece4.)

Change-Id: I2f0c0abff04decd347d4770e6d1d190f1e08afa0
Reviewed-on: https://boringssl-review.googlesource.com/13781
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 01:11:42 +00:00
Adam Langley
cf9a98cc0c x86 assembly pack: update performance results.
(Imports upstream's a30b0522cb937be54e172c68b0e9f5fa6ec30bf3.)

Change-Id: I6b9e67f97de935ecaaa9524943c6bdbe3540c0d0
Reviewed-on: https://boringssl-review.googlesource.com/13780
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:44:17 +00:00
Adam Langley
51079b4ebe x86_64 assembly pack: add AVX512 ChaCha20 path.
(Imports upstream's abb8c44fbaf6b88f4f4879b89b32e423aa75617b.)

Note that the AVX512 code is disabled for now. This just reduces the
diff with upstream.

Change-Id: I61da414e53747ecc869f27883e6ab12c1f8513ff
Reviewed-on: https://boringssl-review.googlesource.com/13779
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:44:01 +00:00
Adam Langley
b99dc55f21 chacha/asm/chacha-x86.pl: improve [backward] portability.
(Imports upstream's d89773d659129368a341df746476da445d47ad31.)

In order to minimize dependency on assembler version a number of
post-SSE2 instructions are encoded manually. But in order to simplify
the procedure only register operands are considered. Non-register
operands are passed down to assembler. Module in question uses pshufb
with memory operands, and old [GNU] assembler can't handle it.
Fortunately in this case it's possible skip just the problematic
segment without skipping SSSE3 support altogether.

Change-Id: Ic3ba1eef14170f9922c2cc69e0d57315e99a788b
Reviewed-on: https://boringssl-review.googlesource.com/13778
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:35:12 +00:00
Adam Langley
5ca18d8a47 chacha-x86.pl: simplify feature setting.
We do pass -DOPENSSL_IA32_SSE2 on the command line, so this just had the
effect of setting both values to 1 anyway.

Change-Id: Ia34714bb2fe51cc79d51ef9ee3ffe0354049ed0c
Reviewed-on: https://boringssl-review.googlesource.com/13777
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:35:09 +00:00
Adam Langley
766a6fd151 Revert "OpenSSL: make final reduction in Montgomery multiplication constant-time."
This reverts commit 75b833cc81.

Sadly this needs to be redone because upstream never took this change.
Perhaps, once redone, we can try upstreaming it again.

Change-Id: Ic8aaa0728a43936cde1628ca031ff3821f0fbf5b
Reviewed-on: https://boringssl-review.googlesource.com/13776
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:35:05 +00:00
Adam Langley
0bf9d6d554 bn/asm/x86[_64]-mont*.pl: implement slightly alternative page-walking.
(Imports upstream's 3ba1ef829cf3dd36eaa5e819258d90291c6a1027.)

Original strategy for page-walking was adjust stack pointer and then
touch pages in order. This kind of asks for double-fault, because
if touch fails, then signal will be delivered to frame above adjusted
stack pointer. But touching pages prior adjusting stack pointer would
upset valgrind. As compromise let's adjust stack pointer in pages,
touching top of the stack. This still asks for double-fault, but at
least prevents corruption of neighbour stack if allocation is to
overstep the guard page.

Also omit predict-non-taken hints as they reportedly trigger illegal
instructions in some VM setups.

Change-Id: Ife42935319de79c6c76f8df60a76204c546fd1e0
Reviewed-on: https://boringssl-review.googlesource.com/13775
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:14:21 +00:00
Adam Langley
ff7fb71ab5 x86_64 assembly pack: add Goldmont performance results.
(Imports upstream's ace05265d2d599e350cf84ed60955b7f2b173bc9.)

Change-Id: I151a03d662f7effe87f22fd9db7e0265368798b8
Reviewed-on: https://boringssl-review.googlesource.com/13774
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:14:15 +00:00
Adam Langley
952f7bff7c Spelling fixes in Perl files.
(Imports upstream's 6025001707fd65679d758c877200469d4e72ea88.)

Change-Id: I2f237d675b029cfc7ba3640aa9ce7248cc230013
Reviewed-on: https://boringssl-review.googlesource.com/13773
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:14:06 +00:00
Adam Langley
86c0692499 Skylake performance results.
(Imports upstream's b7f5503fa6e1feebec2ac12b8ddcb5b5672452a6.)

Change-Id: Ia8d2a8f71c97265d77ef8f6fc3cdfb7cf411c5ce
Reviewed-on: https://boringssl-review.googlesource.com/13772
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:14:00 +00:00
Adam Langley
c948d46569 Remove trailing whitespace from Perl files.
Upstream did this in 609b0852e4d50251857dbbac3141ba042e35a9ae and it's
easier to apply patches if we do also.

Change-Id: I5142693ed1e26640987ff16f5ea510e81bba200e
Reviewed-on: https://boringssl-review.googlesource.com/13771
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:13:55 +00:00
Adam Langley
073a06d3da On Windows, page walking is known as __chkstk.
(Imports upstream's 0a86f668212acfa6b48abacbc17b99c234eedf33.)

Change-Id: Ie31d99f8cc3e93b6a9c7c5daa066de96941b3f7c
Reviewed-on: https://boringssl-review.googlesource.com/13770
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:13:50 +00:00
Adam Langley
b8344501d3 Explain *cough*-dows
(Imports upstream's 1bf80d93024e72628d4351c7ad19c0dfe635aa95.)

Change-Id: If1d61336edc7f63cdfd8ac14157376bde2651a31
Reviewed-on: https://boringssl-review.googlesource.com/13769
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:13:44 +00:00
Adam Langley
edcd8fda65 bn/asm/x86[_64]-mont*.pl: complement alloca with page-walking.
(Imports upstream's adc4f1fc25b2cac90076f1e1695b05b7aeeae501.)

Some OSes, *cough*-dows, insist on stack being "wired" to
physical memory in strictly sequential manner, i.e. if stack
allocation spans two pages, then reference to farmost one can
be punishable by SEGV. But page walking can do good even on
other OSes, because it guarantees that villain thread hits
the guard page before it can make damage to innocent one...

Change-Id: Ie1e278eb5982f26e596783b3d7820a71295688ec
Reviewed-on: https://boringssl-review.googlesource.com/13768
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-14 00:13:38 +00:00
Adam Langley
689eb3d03a x86_64-xlate.pl: import fix(?) from upstream.
This imports the changes to x86_64-xlate from upstream's
9c940446f614d1294fa197ffd4128206296b04da. It looks like it's a fix,
although it doesn't alter our generated asm at all. Either way, no point
in diverging from upstream on this point.

Change-Id: Iaedf2cdb9580cfccf6380dbc3df36b0e9c148d1c
Reviewed-on: https://boringssl-review.googlesource.com/13767
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-13 21:52:39 +00:00
Adam Langley
9ad43cbf64 x86_64-xlate.pl: drop some whitespace.
This aligns us better with upstream's version of this file.

Change-Id: I771b6a6c57f2e11e30c95c7a5499c39575b16253
Reviewed-on: https://boringssl-review.googlesource.com/13766
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2017-02-13 21:51:38 +00:00
Adam Langley
9be3238e18 perlasm/x86_64-xlate.pl: recognize DWARF CFI directives.
(Imports upstream's a3b5684fc1d4f3aabdf68dcf6c577f6dd24d2b2d.)

CFI directives annotate instructions that are significant for stack
unwinding procedure. In addition to directives recognized by GNU
assembler this module implements three synthetic ones:

- .cfi_push annotates push instructions in prologue and translates to
  .cfi_adjust_cfa_offset (if needed) and .cfi_offset;
- .cfi_pop annotates pop instructions in epilogue and translates to
  .cfi_adjust_cfs_offset (if needed) and .cfi_restore;
- .cfi_cfa_expression encodes DW_CFA_def_cfa_expression and passes it
  to .cfi_escape as byte vector;

CFA expression syntax is made up mix of DWARF operator suffixes [subset
of] and references to registers with optional bias. Following example
describes offloaded original stack pointer at specific offset from
current stack pointer:

        .cfi_cfa_expression     %rsp+40,deref,+8

Final +8 has everything to do with the fact that CFA, Canonical Frame
Address, is reference to top of caller's stack, and on x86_64 call to
subroutine pushes 8-byte return address.

Change-Id: Ic675bf52b5405000be34e9da31c9cf1660f4b491
Reviewed-on: https://boringssl-review.googlesource.com/13765
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
2017-02-13 21:48:43 +00:00
David Benjamin
16b1b1d4d1 Simplify state and info_callback management.
All the business with rewinding hs->state back or skipping states based
on reuse_message or a skip parameter isn't really worth the trouble for
a debugging callback. With SSL_state no longer exposed, we don't have to
worry about breaking things.

BUG=177

Change-Id: I9a0421f01c8b2f24c80a6b3e44de9138ea023f58
Reviewed-on: https://boringssl-review.googlesource.com/13829
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2017-02-13 19:52:27 +00:00
David Benjamin
35ed5233c2 Remove an unnecessary state transition.
The split was there out of paranoia that some caller may notice the
change in initial state. Now that SSL_state is neutered, simplify.

BUG=177

Change-Id: I7e2138c2b56821b0c79eec98bb09a82fc28238e8
Reviewed-on: https://boringssl-review.googlesource.com/13828
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-13 19:52:09 +00:00
David Benjamin
77458a436e Avoid transitioning into SSL_ST_OK and back out.
I doubt this matters, but this seems a little odd. In particular, this
avoids info_callback seeing the SSL_ST_OK once we stop switching
hs->state back and forth.

BUG=177

Change-Id: Ied39c0e94c242af9d5d0f26795d6e0f2f0b12406
Reviewed-on: https://boringssl-review.googlesource.com/13827
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-02-13 19:52:02 +00:00
David Benjamin
9e766d7532 Unexport the handshake's internal state.
Code which manages to constrain itself on this will limit our ability to
rework the handshake. I believe, at this point, we only need to expose
one bit of information (there's some code that compares SSL_state to
SSL_ST_OK), if even that.

BUG=177

Change-Id: Ie1c43006737db0b974811f1819755c629ae68e7b
Reviewed-on: https://boringssl-review.googlesource.com/13826
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Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2017-02-13 19:44:30 +00:00
David Benjamin
07ab5d44d9 Stop skipping stray HelloRequests.
This makes sense to do if we are a client and initiate a renegotiation
at the same time as the server requesting one. Since we will never
initiate a renegotiation, this should not be necessary.

Change-Id: I5835944291fdb8dfcc4fed2ebf1064e91ccdbe6a
Reviewed-on: https://boringssl-review.googlesource.com/13825
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-13 19:44:22 +00:00
Adam Langley
040bc4944b Enable TLS 1.3 by default in bssl tool.
Change-Id: I4b586dce37f4db0770e516888c2eeeae3ecffd97
Reviewed-on: https://boringssl-review.googlesource.com/13784
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2017-02-11 16:12:31 +00:00
David Benjamin
7d7554b6b3 Add a helper for comparing byte strings.
We compare pointer/length pairs constantly. To avoid needing to type it
everywhere and get GTest's output, add a StringPiece-alike for byte
slices which supports ==, !=, and std::ostream.

BUG=129

Change-Id: I108342cbd2c6a58fec0b9cb87ebdf50364bda099
Reviewed-on: https://boringssl-review.googlesource.com/13625
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2017-02-11 00:42:00 +00:00
Adam Langley
949628a2ab perlasm/x86_64-xlate.pl: remove obsolete .picmeup synthetic directive.
(Imports upstream's 9d301cfea7181766b79ba31ed257d30fb84b1b0f.)

Change-Id: Ibc384f5ae4879561e2b26b3c9c2a51af5d91a996
Reviewed-on: https://boringssl-review.googlesource.com/13764
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Reviewed-by: David Benjamin <davidben@google.com>
2017-02-11 00:00:58 +00:00
Adam Langley
25126633dc perlasm/x86_64-xlate.pl: minor readability updates.
(Imports upstream's e09b6216a5423555271509acf5112da5484ec15d.)

Change-Id: Ie9d785e415271bede1d35d014ac015e6984e3a52
Reviewed-on: https://boringssl-review.googlesource.com/13763
Commit-Queue: Adam Langley <agl@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
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2017-02-10 23:58:41 +00:00