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114 commits

Author SHA1 Message Date
Dr. Matthias St. Pierre
b5acbf9148 Reorganize local header files
Apart from public and internal header files, there is a third type called
local header files, which are located next to source files in the source
directory. Currently, they have different suffixes like

  '*_lcl.h', '*_local.h', or '*_int.h'

This commit changes the different suffixes to '*_local.h' uniformly.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9681)
2019-09-27 23:58:06 +02:00
David Benjamin
e4a282fe03 Don't generate an unnecessary Diffie-Hellman key in TLS 1.3 clients.
tls_parse_stoc_key_share was generating a new EVP_PKEY public/private
keypair and then overrides it with the server public key, so the
generation was a waste anyway. Instead, it should create a
parameters-only EVP_PKEY.

(This is a consequence of OpenSSL using the same type for empty key,
empty key with key type, empty key with key type + parameters, public
key, and private key. As a result, it's easy to mistakenly mix such
things up, as happened here.)

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/9445)

(cherry picked from commit 166c0b98fd)
2019-07-25 16:26:06 -04:00
Matt Caswell
d8bb277f76 Following the previous 2 commits also move ecpointformats out of session
The previous 2 commits moved supported groups and ciphers out of the
session object to avoid race conditions. We now also move ecpointformats
for consistency. There does not seem to be a race condition with access
to this data since it is only ever set in a non-resumption handshake.
However, there is no reason for it to be in the session.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9176)
2019-06-18 14:26:16 +01:00
Richard Levitte
35fd99538a Update copyright year
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9034)
2019-05-28 14:49:38 +02:00
Matt Caswell
c9a826d28f Don't write the tick_identity to the session
Sessions must be immutable once they can be shared with multiple threads.
We were breaking that rule by writing the ticket index into it during the
handshake. This can lead to incorrect behaviour, including failed
connections in multi-threaded environments.

Reported by David Benjamin.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8383)

(cherry picked from commit c96ce52ce2)
2019-03-05 14:28:27 +00:00
Matt Caswell
f306b9e62a Ignore disabled ciphers when deciding if we are using ECC
use_ecc() was always returning 1 because there are default (TLSv1.3)
ciphersuites that use ECC - even if those ciphersuites are disabled by
other options.

Fixes #7471

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/7479)

(cherry picked from commit 589b6227a8)
2018-11-08 11:31:22 +00:00
Matt Caswell
b5b993b229 Use the same min-max version range on the client consistently
We need to ensure that the min-max version range we use when constructing
the ClientHello is the same range we use when we validate the version
selected by the ServerHello. Otherwise this may appear as a fallback or
downgrade.

Fixes #6964

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7013)
2018-08-22 15:15:19 +01:00
Matt Caswell
32097b33bd Change Post Handshake auth so that it is opt-in
Having post handshake auth automatically switched on breaks some
applications written for TLSv1.2. This changes things so that an explicit
function call is required for a client to indicate support for
post-handshake auth.

Fixes #6933.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6938)
2018-08-20 15:14:01 +01:00
Matt Caswell
35e742ecac Update code for the final RFC version of TLSv1.3 (RFC8446)
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6741)
2018-08-15 12:33:30 +01:00
Matt Caswell
73cc84a132 Suport TLSv1.3 draft 28
Also retains support for drafts 27 and 26

Fixes #6257

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6258)
2018-05-15 10:02:59 +01:00
Matt Caswell
9d5db9c9ab Assert that alpn_selected is NULL before we assign it
The alpn_selected value in the session should be NULL before we first
populate it if this is a new session. We assert to make sure it is.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5715)
2018-03-27 16:19:17 +01:00
Peter Wu
696de86f8e Fix stack-use-after-scope
Fixes regression from #5667.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5701)
2018-03-21 09:38:07 +00:00
Matt Caswell
c2b290c3d0 Fix no-psk
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5667)
2018-03-19 14:47:12 +00:00
Matt Caswell
27e462f1b0 Only allow supported_versions in a TLSv1.3 ServerHello
As per the latest text in TLSv1.3 draft-26

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/5604)
2018-03-14 09:51:20 +00:00
Matt Caswell
f3d40db1b9 Fallback on old style PSK callbacks if the new style ones aren't present
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5554)
2018-03-09 11:22:23 +00:00
Todd Short
aa2ed504ea If not sending key_share (no TLSv1.3), return appropriately.
This fixes an issue raised in PR #4964 by kaduk.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5491)
2018-03-05 13:16:33 +00:00
Matt Caswell
5de683d2c6 Fix status_request and SCT extensions
They are valid for use in a CertificateRequest message, but we did not
allow it. If a server sent such a message using either of those two
extensions then the handshake would abort.

This corrects that error, but does not add support for actually processing
the extensions. They are simply ignored, and a TODO is inserted to add
support at a later time.

This was found during interoperability testing with btls:
https://gitlab.com/ilari_l/btls

Prompted by these errors I reviewed the complete list of extensions and
compared them with the latest table in draft-24 to confirm there were no
other errors of a similar type. I did not find any.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/5490)
2018-03-05 11:55:07 +00:00
Matt Caswell
6738bf1417 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
2018-02-13 13:59:25 +00:00
Matt Caswell
7e70213fe3 Don't overestimate the ticket age
On the client we calculate the age of the ticket in seconds but the server
may work in ms. Due to rounding errors we could overestimate the age by up
to 1s. It is better to underestimate it. Otherwise, if the RTT is very
short, when the server calculates the age reported by the client it could
be bigger than the age calculated on the server - which should never happen.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5306)
2018-02-12 10:01:13 +00:00
Todd Short
9d75dce3e1 Add TLSv1.3 post-handshake authentication (PHA)
Add SSL_verify_client_post_handshake() for servers to initiate PHA

Add SSL_force_post_handshake_auth() for clients that don't have certificates
initially configured, but use a certificate callback.

Update SSL_CTX_set_verify()/SSL_set_verify() mode:

* Add SSL_VERIFY_POST_HANDSHAKE to postpone client authentication until after
the initial handshake.

* Update SSL_VERIFY_CLIENT_ONCE now only sends out one CertRequest regardless
of when the certificate authentication takes place; either initial handshake,
re-negotiation, or post-handshake authentication.

Add 'RequestPostHandshake' and 'RequirePostHandshake' SSL_CONF options that
add the SSL_VERIFY_POST_HANDSHAKE to the 'Request' and 'Require' options

Add support to s_client:
* Enabled automatically when cert is configured
* Can be forced enabled via -force_pha

Add support to s_server:
* Use 'c' to invoke PHA in s_server
* Remove some dead code

Update documentation

Update unit tests:
* Illegal use of PHA extension
* TLSv1.3 certificate tests

DTLS and TLS behave ever-so-slightly differently. So, when DTLS1.3 is
implemented, it's PHA support state machine may need to be different.
Add a TODO and a #error

Update handshake context to deal with PHA.

The handshake context for TLSv1.3 post-handshake auth is up through the
ClientFinish message, plus the CertificateRequest message. Subsequent
Certificate, CertificateVerify, and Finish messages are based on this
handshake context (not the Certificate message per se, but it's included
after the hash). KeyUpdate, NewSessionTicket, and prior Certificate
Request messages are not included in post-handshake authentication.

After the ClientFinished message is processed, save off the digest state
for future post-handshake authentication. When post-handshake auth occurs,
copy over the saved handshake context into the "main" handshake digest.
This effectively discards the any KeyUpdate or NewSessionTicket messages
and any prior post-handshake authentication.

This, of course, assumes that the ID-22 did not mean to include any
previous post-handshake authentication into the new handshake transcript.
This is implied by section 4.4.1 that lists messages only up to the
first ClientFinished.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4964)
2018-02-01 17:07:56 +00:00
Matt Caswell
848a950b71 Fix some instances of the wrong alert type being sent
In a few places we sent an internal_error alert instead of a decode_error.

Fixes #5213
Fixes #5214

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5219)
2018-02-01 10:28:49 +00:00
Paul Yang
56d362881e Remove spaces at end of line in ssl/statem
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matt Caswell <matt@openssl.org>
GH: #4934
2017-12-17 23:04:41 +01:00
Matt Caswell
5cc807da25 Delay flush until after CCS with early_data
Normally we flush immediately after writing the ClientHello. However if
we are going to write a CCS immediately because we've got early_data to
come, then we should move the flush until after the CCS.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4701)
2017-12-14 15:06:38 +00:00
Matt Caswell
426dfc9ff7 Send supported_versions in an HRR
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4701)
2017-12-14 15:06:37 +00:00
Matt Caswell
fc7129dc37 Update state machine to send CCS based on whether we did an HRR
The CCS may be sent at different times based on whether or not we
sent an HRR earlier. In order to make that decision this commit
also updates things to make sure we remember whether an HRR was
used or not.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4701)
2017-12-14 15:06:37 +00:00
Matt Caswell
88050dd196 Update ServerHello to new draft-22 format
The new ServerHello format is essentially now the same as the old TLSv1.2
one, but it must additionally include supported_versions. The version
field is fixed at TLSv1.2, and the version negotiation happens solely via
supported_versions.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4701)
2017-12-14 15:06:37 +00:00
Matt Caswell
635c8f7715 Fix up a few places in the state machine that got missed with SSLfatal()
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:31:48 +00:00
Matt Caswell
f63a17d66d Convert the state machine code to use SSLfatal()
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:31:48 +00:00
Matt Caswell
bfab12bb7d Allow a client to send early_data with SNI if the session has no SNI
We can only send early_data if the SNI is consistent. However it is valid
for the client to set SNI and the server to not use it. This would still be
counted as consistent. OpenSSL client was being overzealous in this check
and disallowing this scenario.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4738)
2017-11-21 17:46:22 +00:00
Andy Polyakov
3a63c0edab Resolve warnings in VC-WIN32 build, which allows to add /WX.
It's argued that /WX allows to keep better focus on new code, which
motivates its comeback...

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4721)
2017-11-13 10:58:57 +01:00
FdaSilvaYY
cf72c75792 Implement Maximum Fragment Length TLS extension.
Based on patch from Tomasz Moń:
https://groups.google.com/forum/#!topic/mailing.openssl.dev/fQxXvCg1uQY

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/1008)
2017-11-05 17:46:48 +01:00
Dr. Stephen Henson
f48d826e33 Change curves to groups where relevant
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4475)
2017-10-06 13:23:45 +01:00
Dr. Stephen Henson
ff6d20a67b Use separate functions for supported and peer groups lists
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4475)
2017-10-06 13:23:45 +01:00
Dr. Stephen Henson
34e5292c57 Rename tls1_get_curvelist.
Rename tls1_get_curvelist to tls1_get_grouplist, change to void as
it can never fail and remove unnecessary return value checks. Clean
up the code.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/=4412)
2017-09-26 13:00:26 +01:00
Dr. Stephen Henson
43b95d7365 Replace tls1_ec_curve_id2nid.
Replace tls1_ec_curve_id2nid() with tls_group_id_lookup() which returns
the TLS_GROUP_INFO for the group.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/=4412)
2017-09-26 13:00:26 +01:00
Dr. Stephen Henson
9e84a42db4 Store groups as uint16_t
Instead of storing supported groups in on-the-wire format store
them as parsed uint16_t values. This simplifies handling of groups
as the values can be directly used instead of being converted.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4406)
2017-09-22 22:59:42 +01:00
Matt Caswell
3d85c7f408 Don't attempt to add a zero length padding extension
The padding extension should always be at least 1 byte long

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4331)
2017-09-04 15:15:30 +01:00
Andy Polyakov
89bc9cf682 ssl/statem/extensions_clnt.c: fix return code buglet.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4297)
2017-09-01 08:44:41 +02:00
Andy Polyakov
eb5fd03bb2 ssl/statem/*.c: address "enum mixed with another type" warnings.
This is actually not all warnings, only return values.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4297)
2017-09-01 08:43:45 +02:00
Rich Salz
ccb76685e0 Avoid possible uninitialized variable.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4307)
2017-08-31 18:27:06 -04:00
Matt Caswell
0ef2802165 Various review fixes for PSK early_data support
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3926)
2017-08-31 15:03:35 +01:00
Matt Caswell
4be3a7c7aa Client side sanity check of ALPN after server has accepted early_data
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3926)
2017-08-31 15:03:35 +01:00
Matt Caswell
fff202e5f7 Add some fixes for Travis failures
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3926)
2017-08-31 15:03:35 +01:00
Matt Caswell
ae8d7d994a Make sure we save ALPN data in the session
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3926)
2017-08-31 15:03:35 +01:00
Matt Caswell
ffc5bbaaee Complain if we are writing early data but SNI or ALPN is incorrect
SNI and ALPN must be set to be consistent with the PSK. Otherwise this is
an error.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3926)
2017-08-31 15:03:34 +01:00
Matt Caswell
add8d0e9e0 Enable the ability to use an external PSK for sending early_data
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/3926)
2017-08-31 15:02:22 +01:00
Todd Short
10ed1b7239 Reorder extensions to put SigAlgs last
Force non-empty padding extension.
When enabled, force the padding extension to be at least 1 byte long.
WebSphere application server cannot handle having an empty
extension (e.g. EMS/EtM) as the last extension in a client hello.
This moves the SigAlgs extension last for TLSv1.2 to avoid this
issue.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3921)
2017-08-18 09:52:17 -04:00
Matt Caswell
67dc995eaf Move ossl_assert
Move the definition of ossl_assert() out of e_os.h which is intended for OS
specific things. Instead it is moved into internal/cryptlib.h.

This also changes the definition to remove the (int) cast.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4073)
2017-08-03 10:48:00 +01:00
Matt Caswell
e3c0d76bc7 Do not allow non-dhe kex_modes by default
Allow that mode to be configured if desired.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3833)
2017-07-07 16:08:05 +01:00
Paul Yang
15b1688ac9 Avoid compiler complaining
initialize some local variables

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3741)
2017-06-21 14:36:02 -04:00