It should be set correctly prior to entering the handshake. Don't mask bugs by
assigning it.
Change-Id: Ib9bca8fad68916b3b242aad8819e3760e59e777a
Reviewed-on: https://boringssl-review.googlesource.com/2443
Reviewed-by: Adam Langley <agl@google.com>
Supporting both schemes seems pointless. Now that s->server and s->state are
set appropriately late and get_ssl_method is gone, the only difference is that
the client/server ones have non-functional ssl_accept or ssl_connect hooks. We
can't lose the generic ones, so let's unify on that.
Note: this means a static linker will no longer drop the client or server
handshake code if unused by a consumer linking statically. However, Chromium
needs the server half anyway for DTLS and WebRTC, so that's probably a lost
cause. Android also exposes server APIs.
Change-Id: I290f5fb4ed558f59fadb5d1f84e9d9c405004c23
Reviewed-on: https://boringssl-review.googlesource.com/2440
Reviewed-by: Adam Langley <agl@google.com>
If the state is SSL_ST_BEFORE, the SSL* was just initialized. Otherwise, we
don't want to call SSL_clear. The one case I found where we do is if a
handshake message is received and someone sets
SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS. This is apparently intended for external
consumers to set, but I see no code in Google that does.
Which is fortunate because it'll trigger SSL_clear. This retains the BIOs but
drops all connection state, including the record. If the client just initiated
renego, that's the ClientHello that's lost. The connection then hangs: the now
reset SSL* wants a ClientHello (under the null cipher because that too's been
dropped) while the peer wants an encrypted ServerHello.
Change-Id: Iddb3e0bb86d39d98155b060f9273a0856f2d1409
Reviewed-on: https://boringssl-review.googlesource.com/2436
Reviewed-by: Adam Langley <agl@google.com>
SSL_ST_BEFORE is never standalone. As of upstream's
413c4f45ed0508d2242638696b7665f499d68265, SSL_ST_BEFORE is only ever set paired
with SSL_ST_ACCEPT or SSL_ST_CONNECT.
Conversely, SSL_ST_OK is never paired with SSL_ST_ACCEPT or SSL_ST_CONNECT. As
far as I can tell, this combination has never been possible.
Change-Id: Ifbc8f147be821026cf59f3d5038f0dbad3b0a1d2
Reviewed-on: https://boringssl-review.googlesource.com/2433
Reviewed-by: Adam Langley <agl@google.com>
This is a bit of cleanup that probably should have been done at the same time
as 30ddb434bf.
For now, version negotiation is implemented with a method swap. It also
performs this swap on SSL_set_session, but this was neutered in
30ddb434bf. Rather than hackishly neuter it,
remove it outright. In addition, remove SSL_set_ssl_method. Now all method
swaps are internal: SSLv23_method switch to a version-specific method and
SSL_clear undoing it.
Note that this does change behavior: if an SSL* is created with one
version-specific method and we SSL_set_session to a session from a /different/
version, we would switch to the /other/ version-specific method. This is
extremely confusing, so it's unlikely anyone was actually expecting it.
Version-specific methods in general don't work well.
Change-Id: I72a5c1f321ca9aeb1b52ebe0317072950ba25092
Reviewed-on: https://boringssl-review.googlesource.com/2390
Reviewed-by: Adam Langley <agl@google.com>
This commit fixes a number of crashes caused by malloc failures. They
were found using the -malloc-test=0 option to runner.go which runs tests
many times, causing a different allocation call to fail in each case.
(This test only works on Linux and only looks for crashes caused by
allocation failures, not memory leaks or other errors.)
This is not the complete set of crashes! More can be found by collecting
core dumps from running with -malloc-test=0.
Change-Id: Ia61d19f51e373bccb7bc604642c51e043a74bd83
Reviewed-on: https://boringssl-review.googlesource.com/2320
Reviewed-by: Adam Langley <agl@google.com>
It was added in OpenSSL 1.0.2, so nothing can be depending on it yet. If we
really want a Suite B profile, it seems better to generate a configuration for
the rest of the system rather than pepper the codebase with checks.
Change-Id: I1be3ebed0e87cbfe236ade4174dcf5bbc7e10dd5
Reviewed-on: https://boringssl-review.googlesource.com/1517
Reviewed-by: Adam Langley <agl@google.com>
ssl23_get_client_hello has lots of remnants of SSLv2 support and remnants of an
even older SSL_OP_NON_EXPORT_FIRST option (see upstream's
d92f0bb6e9ed94ac0c3aa0c939f2565f2ed95935) which complicates the logic.
Split it into three states and move V2ClientHello parsing into its own
function. Port it to CBS and CBB to give bounds checks on the V2ClientHello
parse.
This fixes a minor bug where, if the SSL_accept call in ssl23_get_client_hello
failed, cb would not be NULL'd and SSL_CB_ACCEPT_LOOP would get reported an
extra time.
It also unbreaks the invariant between s->packet, s->packet_length,
s->s3->rbuf.buf, and s->s3->rbuf.offset at the point the switch, although this
was of no consequence because the first ssl3_read_n call passes extend = 0
which resets s->packet and s->packet_length.
It also makes us tolerant to major version bumps in the ClientHello. Add tests
for TLS tolerance of both minor and major version bumps as well as the HTTP
request error codes.
Change-Id: I948337f4dc483f4ebe1742d3eba53b045b260257
Reviewed-on: https://boringssl-review.googlesource.com/1455
Reviewed-by: Adam Langley <agl@google.com>
Done with unifdef with some manual edits to remove empty lines.
Change-Id: I40d163539cab8ef0e01e45b7dc6a1a0a37733c3e
Reviewed-on: https://boringssl-review.googlesource.com/1097
Reviewed-by: Adam Langley <agl@google.com>
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).
(This change contains substantial changes from the original and
effectively starts a new history.)
