This change marks public symbols as dynamically exported. This means
that it becomes viable to build a shared library of libcrypto and libssl
with -fvisibility=hidden.
On Windows, one not only needs to mark functions for export in a
component, but also for import when using them from a different
component. Because of this we have to build with
|BORINGSSL_IMPLEMENTATION| defined when building the code. Other
components, when including our headers, won't have that defined and then
the |OPENSSL_EXPORT| tag becomes an import tag instead. See the #defines
in base.h
In the asm code, symbols are now hidden by default and those that need
to be exported are wrapped by a C function.
In order to support Chromium, a couple of libssl functions were moved to
ssl.h from ssl_locl.h: ssl_get_new_session and ssl_update_cache.
Change-Id: Ib4b76e2f1983ee066e7806c24721e8626d08a261
Reviewed-on: https://boringssl-review.googlesource.com/1350
Reviewed-by: Adam Langley <agl@google.com>
CMake calls "uname" in order to detect the CPU architecture,
so $(CMAKE_SYSTEM_PROCESSOR) varies from platform to platform.
This changes adds support for "i386" and "amd64" values, which
are used by BSDs for the x86 family of CPUs.
Change-Id: I532ce787a9ac06220c92a6d8c78ad5a55d8c40bf
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
Reviewed-on: https://boringssl-review.googlesource.com/1360
Reviewed-by: Adam Langley <agl@google.com>
Compilers have a bad habit of removing "superfluous" memset calls that
are trying to zero memory. For example, when memset()ing a buffer and
then free()ing it, the compiler might decide that the memset is
unobservable and thus can be removed.
Previously we tried to stop this by a) implementing memset in assembly
on x86 and b) putting the function in its own file for other platforms.
This change removes those tricks in favour of using asm directives to
scare the compiler away. As best as our compiler folks can tell, this is
sufficient and will continue to be so.
Change-Id: I40e0a62c3043038bafd8c63a91814a75a3c59269
Reviewed-on: https://boringssl-review.googlesource.com/1339
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Windows complains when the declaration of a function doesn't match the
definition. In this case, the |bits| argument (not a pointer, just an
unsigned) was marked as const in the definition only.
Normally const isn't used for non-pointer arguments so I've removed it
in this case to make Windows compile.
https://code.google.com/p/chromium/issues/detail?id=398960
Change-Id: If7386cf61f9dfbf6b32bfada1a49d5742fe94396
Reviewed-on: https://boringssl-review.googlesource.com/1338
Reviewed-by: Adam Langley <agl@google.com>
Chromium is no longer using it.
Change-Id: If56340627d2024ff3fb8561405dd0cfc6f4787cb
Reviewed-on: https://boringssl-review.googlesource.com/1346
Reviewed-by: Adam Langley <agl@google.com>
Caught by clang scan-build. (The allocation was larger than it should have
been.)
Change-Id: Ideb800118f65aaba1ee85b7611c8a705671025a8
Reviewed-on: https://boringssl-review.googlesource.com/1340
Reviewed-by: Adam Langley <agl@google.com>
Where possible, functions should return one for success and zero for
error. The use of additional negative values to indicate an error is,
itself, error prone.
This change fixes many EVP functions to remove the possibility of
negative return values. Existing code that is testing for <= 0 will
continue to function, although there is the possibility that some code
was differentiating between negative values (error) and zero (invalid
signature) for the verify functions and will now show the wrong error
message.
Change-Id: I982512596bb18a82df65861394dbd7487783bd3d
Reviewed-on: https://boringssl-review.googlesource.com/1333
Reviewed-by: Adam Langley <agl@google.com>
Use same logic when determining when to expect a client certificate for
both TLS and DTLS.
PR#3452
(Imported from upstream's 666a597ffb)
Change-Id: Ia267255a32c0b3b9a7da1c53f13ef6f620ff5ec1
OIDs with one component don't have an encoding.
PR#2556 (Bug#1)
(Imported from upstream's ff4cfc4c58 and
65e4dca40c)
Change-Id: I55b54f23e891abc2c1e0b2976531fba1f16070bb
This ensures high performance is situations when assembler supports
AVX2, but not AD*X.
(Imported from upstream's 82a9dafe32)
Change-Id: Ie67f49a1c5467807139b6a8a0d4e62162d8a974f
One of the state transitions wasn't rewritten to CR_CHANGE. Add a test to
exercise this codepath. Also SSL_cutthrough_complete references the state.
Change-Id: Ib2f7ac5ac3f0348864efa93cf13cfd87454572f0
Reviewed-on: https://boringssl-review.googlesource.com/1337
Reviewed-by: Adam Langley <agl@google.com>
A lot of applications use ERR_TXT_STRING flag in order to determine
whether the error string is printable or not.
Change-Id: Ic79cdb55d43fdfac48da5de5e18c0c9c03c8f747
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
Reviewed-on: https://boringssl-review.googlesource.com/1192
Reviewed-by: Adam Langley <agl@google.com>
The <opensslfeatures.h> header provides #defines which are normally
declared by OpenSSL when features are disabled.
This way applications are able to detect which features were removed
from BoringSSL and use it as drop-in replacement for OpenSSL.
Inspired by LibreSSL, which provides similar header.
Change-Id: If4352743fd938267e2640fb09ca851464b9240b9
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
Reviewed-on: https://boringssl-review.googlesource.com/1191
Reviewed-by: Adam Langley <agl@google.com>
The length is the number of elements now, not the size in bytes. Caught by
ASan.
Change-Id: I4c5ccee61711e8d2e272b9bacd292dbff04b5133
Reviewed-on: https://boringssl-review.googlesource.com/1336
Reviewed-by: Adam Langley <agl@google.com>
Although the PKCS#1 padding check is internally constant-time, it is not
constant time at the crypto/ ssl/ API boundary. Expose a constant-time
RSA_message_index_PKCS1_type_2 function and integrate it into the
timing-sensitive portion of the RSA key exchange logic.
Change-Id: I6fa64ddc9d65564d05529d9b2985da7650d058c3
Reviewed-on: https://boringssl-review.googlesource.com/1301
Reviewed-by: Adam Langley <agl@google.com>
Now that the flag is set accurately, use it to enforce that the handshake and
CCS synchronization. If EXPECT_CCS is set, enforce that:
(a) No handshake records may be received before ChangeCipherSpec.
(b) There is no pending handshake data at the point EXPECT_CCS is set.
Change-Id: I04b228fe6a7a771cf6600b7d38aa762b2d553f08
Reviewed-on: https://boringssl-review.googlesource.com/1299
Reviewed-by: Adam Langley <agl@google.com>
Introduce a CR_CHANGE state just before entering CR_FINISHED_A. This replaces
the CCS_OK in the CR_FINISHED_A/CR_FINISHED_B case which otherwise would get
applied after partial reads of Finished. The other CCS_OK settings are
redundant with this one.
The copy in tls_secret_session_cb codepath is made unnecessary with
9eaeef81fa.
The copy in the normal session resumption case is unnecessary with
6444287806. Before that commit, OpenSSL would
potentially read Finished a state early. Now that we are strict (and get the
book-keeping correct) for expecting the NewSessionTicket message it too is
redundant.
Of particular note is the one after ssl3_send_finished. That was added in
response to upstream's PR#3400. I've reproduced the bug and concluded it was
actually a bug around expecting a NewSessionTicket message. That has been fixed
properly in 6444287806 by resetting
tlsext_expect_ticket on renegotiations.
Change-Id: I6a928386994fcd5efff26a5f0efb12b65bf7f299
Reviewed-on: https://boringssl-review.googlesource.com/1298
Reviewed-by: Adam Langley <agl@google.com>
Rename SSL3_ST_SR_POST_CLIENT_CERT to SSL3_ST_SR_CHANGE and have this be the
point at which CCS_OK is set. The copy before ssl3_get_finished is redundant as
we never transition to SR_FINISHED directly.
Change-Id: I3eefeb821e7ae53d52dacc587fdc59de9ea9a667
Reviewed-on: https://boringssl-review.googlesource.com/1297
Reviewed-by: Adam Langley <agl@google.com>
This removes the last case where the server generates an RSA key for the
ServerKeyExchange. Remove the code for this. Client support to accept them
still remains.
Leave the APIs for now, but they don't do anything anymore.
Change-Id: I84439e034cc575719f5bc9b3e501165e12b62107
Reviewed-on: https://boringssl-review.googlesource.com/1286
Reviewed-by: Adam Langley <agl@google.com>
Slightly cleaner; it means we can use CBS_stow.
Change-Id: I074aa2d73a79648013dea025ee531beeea2af4a2
Reviewed-on: https://boringssl-review.googlesource.com/1287
Reviewed-by: Adam Langley <agl@google.com>
Now the only case where temporary RSA keys are used on the server end is
non-signing keys.
Change-Id: I55f6c206e798dd28548c386fdffd555ccc395477
Reviewed-on: https://boringssl-review.googlesource.com/1285
Reviewed-by: Adam Langley <agl@google.com>
SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG and
SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG. Neither of them have code that's even
enabled.
Change-Id: I866aabe1aa37e8ee145aaeaecaff6704c3ad21bc
Reviewed-on: https://boringssl-review.googlesource.com/1284
Reviewed-by: Adam Langley <agl@google.com>
Also fix a place where fixes for the condition for sending ServerKeyExchange in
s3_srvr.c were never propogated to d1_srvr.c. Tidy up that logic to use
ssl_cipher_requires_server_key_exchange and simplify the PSK check.
Change-Id: Ie36d378f733e59a8df405bc869f2346af59bd574
Reviewed-on: https://boringssl-review.googlesource.com/1283
Reviewed-by: Adam Langley <agl@google.com>
Adam Langley
Piotr Sikora
David Benjamin