Reviewed-by: NMatt Caswell <matt@openssl.org>

Previously, state variant was not advanced, which resulted in state
being stuck in the st1 variant (usually "_A").

This broke certificate callback retry logic when accepting connections
that were using SSLv2 ClientHello (hence reusing the message), because
their state never advanced to SSL3_ST_SR_CLNT_HELLO_C variant required
for the retry code path.

Reported by Yichun Zhang (agentzh).
Signed-off-by: NPiotr Sikora <piotr@cloudflare.com>
Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>

Reviewed-by: NMatt Caswell <matt@openssl.org>

The current documentation contains a bunch of spelling and grammar mistakes. I also
found it hard to understand some paragraphs, so here is my attempt to improve its
readability.
Reviewed-by: NRichard Levitte <levitte@openssl.org>
Reviewed-by: NMatt Caswell <matt@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

Reviewed-by: NRichard Levitte <levitte@openssl.org>

PR#1767
Reviewed-by: NRichard Levitte <levitte@openssl.org>

PR#3613
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

PR#3612
Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

Workaround for NetWare CodeWarrior compiler which doesn't properly lookup
includes when in same directory as the C file which includes it.

PR#3569
Reviewed-by: NStephen Henson <steve@openssl.org>
Reviewed-by: NRichard Levitte <levitte@openssl.org>

Minor changes made by Matt Caswell
Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

Minor changes made by Matt Caswell.
Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

Minor changes made by Matt Caswell.
Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

PR#3608
Reviewed-by: NTim Hudson <tjh@openssl.org>

PR#3574
Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

When using the -xcert option to test certificate validity print out
if we pass Suite B compliance. We print out "not tested" if we aren't
in Suite B mode.
Reviewed-by: NMatt Caswell <matt@openssl.org>

Reviewed-by: NMatt Caswell <matt@openssl.org>

In keygen, return KEY_SIZE_TOO_SMALL not INVALID_KEYBITS.

** I also increased the minimum from 256 to 512, which is now
documented in CHANGES file. **
Reviewed-by: NMatt Caswell <matt@openssl.org>

Fix CONF_load_modules to CONF_modules_load.
Document that it calls exit.
Advise against using it now.
Add an error print to stderr.
Reviewed-by: NMatt Caswell <matt@openssl.org>

the session's version (server).

See also BoringSSL's commit bdf5e72f50e25f0e45e825c156168766d8442dde.
Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

ECDH_compute_key is silently ignored and the KDF is run on duff data

Thanks to github user tomykaira for the suggested fix.
Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

Reviewed-by: NMatt Caswell <matt@openssl.org>

once the ChangeCipherSpec message is received. Previously, the server would
set the flag once at SSL3_ST_SR_CERT_VRFY and again at SSL3_ST_SR_FINISHED.
This would allow a second CCS to arrive and would corrupt the server state.

(Because the first CCS would latch the correct keys and subsequent CCS
messages would have to be encrypted, a MitM attacker cannot exploit this,
though.)

Thanks to Joeri de Ruiter for reporting this issue.
Reviewed-by: NMatt Caswell <matt@openssl.org>

The server must send a NewSessionTicket message if it advertised one
in the ServerHello, so make a missing ticket message an alert
in the client.

An equivalent change was independently made in BoringSSL, see commit
6444287806d801b9a45baf1f6f02a0e3a16e144c.
Reviewed-by: NMatt Caswell <matt@openssl.org>

The client sends a session ID with the session ticket, and uses
the returned ID to detect resumption, so we do not need to peek
at handshake messages: s->hit tells us explicitly if we're resuming.

An equivalent change was independently made in BoringSSL, see commit
407886f589cf2dbaed82db0a44173036c3bc3317.
Reviewed-by: NMatt Caswell <matt@openssl.org>

The same change was independently made in BoringSSL, see commit
9eaeef81fa2d4fd6246dc02b6203fa936a5eaf67
Reviewed-by: NMatt Caswell <matt@openssl.org>

This ensures that it's zeroed even if the SSL object is reused
(as in ssltest.c). It also ensures that it applies to DTLS, too.
Reviewed-by: NMatt Caswell <matt@openssl.org>

Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

If no keyfile has been specified use the certificate file instead.

Fix typo: we need to check the chain is not NULL, not the chain file.
Reviewed-by: NMatt Caswell <matt@openssl.org>

(cherry picked from commit 786370b1b09b919d9306f27336e13783e4fe3fd0)

When no-ssl3 is set only make SSLv3 disabled by default. Retain -ssl3
options for s_client/s_server/ssltest.

When no-ssl3-method is set SSLv3_*method() is removed and all -ssl3
options.

We should document this somewhere, e.g. wiki, FAQ or manual page.
Reviewed-by: NEmilia Käsper <emilia@openssl.org>

Don't send or parse any extensions other than RI (which is needed
to handle secure renegotation) for SSLv3.
Reviewed-by: NMatt Caswell <matt@openssl.org>

The supported signature algorithms extension needs to be processed before
the certificate to use is decided and before a cipher is selected (as the
set of shared signature algorithms supported may impact the choice).
Reviewed-by: NMatt Caswell <matt@openssl.org>

(cherry picked from commit 56e8dc542bd693b2dccea8828b3d8e5fc6932d0c)

Conflicts:
	ssl/ssl.h
	ssl/ssl_err.c

Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

Reviewed-by: NMatt Caswell <matt@openssl.org>

Reviewed-by: NDr. Stephen Henson <steve@openssl.org>

Reviewed-by: NDr. Stephen Henson <steve@openssl.org>