Commit Graph

3941 Commits

Author SHA1 Message Date
Matt Caswell
c9598459b6 Add setters to set the early_data callback
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6469)
2018-07-02 15:06:12 +01:00
Matt Caswell
5d263fb78b Make the anti-replay feature optional
Fixes #6389

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6469)
2018-07-02 15:06:12 +01:00
Matt Caswell
b6ff436fcb Fix a NULL ptr deref in error path in tls_process_cke_dhe()
Fixes #6574

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6593)
2018-07-02 14:42:13 +01:00
Benjamin Kaduk
5281bb2252 Address coverity-reported NULL dereference in SSL_SESSION_print()
We need to check the provided SSL_SESSION* for NULL before
attempting to derference it to see if it's a TLS 1.3 session.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6622)
2018-07-01 18:20:11 -05:00
Pauli
8eab767a71 Check return from BN_set_word.
In ssl/t1_lib.c.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6613)
2018-06-29 13:21:06 +10:00
Matt Caswell
358ffa05cd Return a fatal error if application data is encountered during shutdown
Currently if you encounter application data while waiting for a
close_notify from the peer, and you have called SSL_shutdown() then
you will get a -1 return (fatal error) and SSL_ERROR_SYSCALL from
SSL_get_error(). This isn't accurate (it should be SSL_ERROR_SSL) and
isn't persistent (you can call SSL_shutdown() again and it might then work).

We change this into a proper fatal error that is persistent.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6340)
2018-06-27 10:03:37 +01:00
Matt Caswell
ba70904949 Return SSL_ERROR_WANT_READ if SSL_shutdown() encounters handshake data
In the case where we are shutdown for writing and awaiting a close_notify
back from a subsequent SSL_shutdown() call we skip over handshake data
that is received. This should not be treated as an error - instead it
should be signalled with SSL_ERROR_WANT_READ.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6340)
2018-06-27 10:03:20 +01:00
Matt Caswell
93f528f36e Auto retry if we ditch records during shutdown
If we've sent a close_notify and we're waiting for one back we drop
incoming records until we see the close_notify we're looking for. If
SSL_MODE_AUTO_RETRY is on, then we should immediately try and read the
next record.

Fixes #6262

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/6340)
2018-06-27 10:03:20 +01:00
Matt Caswell
e880d4e58d Use stateful tickets if we are doing anti-replay
During anti-replay we cache the ticket anyway, so there is no point in
using a full stateless ticket.

Fixes #6391

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6563)
2018-06-26 18:09:46 +01:00
Matt Caswell
6cc0b3c217 Respect SSL_OP_NO_TICKET in TLSv1.3
Implement support for stateful TLSv1.3 tickets, and use them if
SSL_OP_NO_TICKET is set.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6563)
2018-06-26 18:09:46 +01:00
Matt Caswell
6a11d5c5ed Restructure the ticket construction code
Separate out as a new function the code to write out data which is specific
to a stateless ticket.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6563)
2018-06-26 18:09:46 +01:00
Matt Caswell
32f803d88e Update SSL_SESSION_print for TLSv1.3
Make SSL_SESSION_print() show a bit more information for TLSv1.3

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6590)
2018-06-26 10:07:01 +01:00
Matt Caswell
c35e96691f Don't change a session once its in the cache
Sessions should be immutable once they are in the cache because they could
be shared with other threads. If you change them then this can cause
corruptions and races

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6561)
2018-06-25 12:08:53 +01:00
Nicola Tuveri
34446a8524 Remove __cplusplus preamble from internal headers
These headers are internal and never exposed to a cpp compiler, hence no
need for the preamble.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/6554)
2018-06-22 12:24:59 +02:00
Matt Caswell
27232cc338 Don't use OPENSSL_strdup() for copying alpn_selected
An alpn_selected value containing NUL bytes in it will result in
ext.alpn_selected_len having a larger value than the number of bytes
allocated in ext.alpn_selected.

Issue found by OSS-fuzz.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6507)
2018-06-21 11:07:45 +01:00
Matt Caswell
fee33643a8 Fix enable-ssl3 enable-ssl3-method
Commit 4aa5a5669 accidentally missed off the catch all case of ignoring all
warning alerts that are otherwise unhandled. This breaks the SSLv3 tests
which send a "no certificate" warning alert.

Fixes #6496

[extended tests]

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/6509)
2018-06-19 18:21:38 +01:00
Matt Caswell
bcf2907c68 Remodel the if sequence for handling alerts
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6370)
2018-06-11 15:46:21 +01:00
Matt Caswell
fb62e47c78 Don't send a warning alert in TLSv1.3
TLSv1.3 ignores the alert level, so we should suppress sending of
warning only alerts.

Fixes #6211

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6370)
2018-06-11 15:46:21 +01:00
Matt Caswell
4aa5a5669c Fix TLSv1.3 alert handling
In TLSv1.3 we should ignore the severity level of an alert according to
the spec.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6370)
2018-06-11 15:46:21 +01:00
Marcus Huewe
c0a58e034d Do not free a session before calling the remove_session_cb
If the remove_session_cb accesses the session's data (for instance,
via SSL_SESSION_get_protocol_version), a potential use after free
can occur. For this, consider the following scenario when adding
a new session via SSL_CTX_add_session:

- The session cache is full
  (SSL_CTX_sess_number(ctx) > SSL_CTX_sess_get_cache_size(ctx))
- Only the session cache has a reference to ctx->session_cache_tail
  (that is, ctx->session_cache_tail->references == 1)

Since the cache is full, remove_session_lock is called to remove
ctx->session_cache_tail from the cache. That is, it
SSL_SESSION_free()s the session, which free()s the data. Afterwards,
the free()d session is passed to the remove_session_cb. If the callback
accesses the session's data, we have a use after free.

The free before calling the callback behavior was introduced in
commit e4612d02c5 ("Remove sessions
from external cache, even if internal cache not used.").

CLA: trivial

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6222)
2018-06-07 13:08:07 +01:00
Matt Caswell
10bda8f8dd Reformulate the if condition in tls_process_new_session_ticket
Improves readability

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6415)
2018-06-07 10:58:35 +01:00
Matt Caswell
6cf2dbd9fa Don't store the ticket nonce in the session
We generate the secrets based on the nonce immediately so there is no
need to keep the nonce.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6415)
2018-06-07 10:58:35 +01:00
Matt Caswell
4ff1a52666 Fix TLSv1.3 ticket nonces
All tickets on a connection need to have a unique nonce. When this was
originally implemented we only ever sent one ticket on the conneciton so
this didn't matter. We were just using the value 0. Now we can get multiple
tickets to we need to start doing the ticket nonce properly.

Fixes #6387

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6415)
2018-06-07 10:58:35 +01:00
Matt Caswell
309371d626 Fix EAP-FAST
Commit 61fb59238d broke EAP-FAST support. This fixes it.

Fixes #6395

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6428)
2018-06-07 09:48:49 +01:00
Matt Caswell
bceae201b4 EVP_MD_size() can return an error
Fix some instances where we weren't checking the error return.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6373)
2018-05-31 10:39:13 +01:00
Dmitry Belyavskiy
41f10305d8 Send GOST SignatureAlgorithms when TLS 1.2 in use
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6168)
2018-05-30 09:14:04 +01:00
Dmitry Belyavskiy
1f65c0459a Bugfix: GOST2012 certificates for GOST ciphersuites were broken.
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6168)
2018-05-30 09:14:04 +01:00
Matt Caswell
83cf7abf8e Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6371)
2018-05-29 13:16:04 +01:00
Bernd Edlinger
1bb829300a Fix array bounds violation in ssl_session_dup
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6353)
2018-05-25 08:06:55 +02:00
Matt Caswell
de9f5b3554 Use the client app traffic secret for PHA Finished message
The TLSv1.3 spec requires us to use the client application traffic secret
during generation of the Finished message following a post handshake
authentication.

Fixes #6263

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/6297)
2018-05-23 13:48:33 +01:00
Kurt Roeckx
693cf80c6f Enable SSL_MODE_AUTO_RETRY by default
Because TLS 1.3 sends more non-application data records some clients run
into problems because they don't expect SSL_read() to return and set
SSL_ERROR_WANT_READ after processing it.

This can cause problems for clients that use blocking I/O and use
select() to see if data is available. It can be cleared using
SSL_CTX_clear_mode().

Reviewed-by: Matt Caswell <matt@openssl.org>
GH: #6260
2018-05-22 22:45:28 +02:00
Matt Caswell
1aac20f509 Fix no-ec in combination with no-dh
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6321)
2018-05-22 13:21:24 +01:00
Tilman Keskinöz
d61e6040a0 ssl/ssl_txt: fix NULL-check
NULL-check for cipher is redundant, instead check if cipher->name is NULL

While here fix formatting of BIO_printf calls as suggested by Andy Polyakov.

CLA: trivial

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6282)
2018-05-21 21:57:18 +02:00
Matt Caswell
ee94ec2ef8 Don't cache stateless tickets in TLSv1.3
In TLSv1.2 and below we always cache new sessions by default on the server
side in the internal cache (even when we're using session tickets). This is
in order to support resumption from a session id.

In TLSv1.3 there is no session id. It is only possible to resume using the
ticket. Therefore, in the default case,  there is no point in caching the
session in the internal store.

There is still a reason to call the external cache new session callback
because applications may be using the callbacks just to know about when
sessions are created (and not necessarily implementing a full cache). If
the application also implements the remove session callback then we are
forced to also store it in the internal cache so that we can create
timeout events. Otherwise the external cache could just fill up
indefinitely.

This mostly addresses the issue described in #5628. That issue also proposes
having an option to not create full stateless tickets when using the
internal cache. That aspect hasn't been addressed yet.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/6293)
2018-05-21 10:36:03 +01:00
Matt Caswell
36ff232cf2 Change the default number of NewSessionTickets we send to 2
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5227)
2018-05-17 16:48:25 +01:00
Matt Caswell
394159da60 Allow configuation of the number of TLSv1.3 session tickets via SSL_CONF
Also allows the apps to set it.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5227)
2018-05-17 16:48:25 +01:00
Matt Caswell
9d0a8bb71e Enable the ability to set the number of TLSv1.3 session tickets sent
We send a session ticket automatically in TLSv1.3 at the end of the
handshake. This commit provides the ability to set how many tickets should
be sent. By default this is one.

Fixes #4978

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5227)
2018-05-17 16:48:25 +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
199dc0d3e8 Fix no-psk
Fixes #6239

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6253)
2018-05-14 17:43:19 +01:00
Kurt Roeckx
5f96a95e25 Set sess to NULL after freeing it.
Found by OSS-fuzz

Bug introduced in commit 61fb59238d

Reviewed-by: Matt Caswell <matt@openssl.org>
GH: #6235
2018-05-12 12:19:00 +02:00
Matt Caswell
a925e7dbf4 Don't memcpy the contents of an empty fragment
In DTLS if we have buffered a fragment for a zero length message (e.g.
ServerHelloDone) then, when we unbuffered the fragment, we were attempting
to memcpy the contents of the fragment which is zero length and a NULL
pointer. This is undefined behaviour. We should check first whether we
have a zero length fragment.

Fixes a travis issue.

[extended tests]

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6223)
2018-05-12 09:59:02 +01:00
Matt Caswell
61fb59238d Rework the decrypt ticket callback
Don't call the decrypt ticket callback if we've already encountered a
fatal error. Do call it if we have an empty ticket present.

Change the return code to have 5 distinct returns codes and separate it
from the input status value.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6198)
2018-05-11 14:51:09 +01:00
Matt Caswell
c0638adeec Fix ticket callbacks in TLSv1.3
The return value from the ticket_key callback was not properly handled in
TLSv1.3, so that a ticket was *always* renewed even if the callback
requested that it should not be.

Also the ticket decrypt callback was not being called at all in TLSv1.3.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6198)
2018-05-11 14:51:08 +01:00
Matt Caswell
5fe3715707 Flush server side unauthenticated writes
When a server call SSL_write_early_data() to write to an unauthenticated
client the buffering BIO is still in place, so we should ensure we flush
the write.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6198)
2018-05-11 14:51:08 +01:00
Matt Caswell
66fab92316 Mark DTLS records as read when we have finished with them
The TLS code marks records as read when its finished using a record. The DTLS code did
not do that. However SSL_has_pending() relies on it. So we should make DTLS consistent.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6159)
2018-05-11 14:20:56 +01:00
Matt Caswell
48a03162db Prefer SHA-256 ciphersuites if using old style PSKs
If we have no certificate and we are using "old style" PSKs then we will
always default to using SHA-256 for that PSK. However we may have selected
a ciphersuite that is not based on SHA-256. Therefore if we see that there
are no certificates and we have been configured for "old style" PSKs then
we should prefer SHA-256 based ciphersuites during the selection process.

Fixes #6197

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6215)
2018-05-11 13:47:13 +01:00
Kurt Roeckx
3cb7c5cfef Use void in all function definitions that do not take any arguments
Reviewed-by: Rich Salz <rsalz@openssl.org>
GH: #6208
2018-05-11 14:37:48 +02:00
Matt Caswell
f7506416b1 Keep the DTLS timer running after the end of the handshake if appropriate
During a full handshake the server is the last one to "speak". The timer
should continue to run until we know that the client has received our last
flight (e.g. because we receive some application data).

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6170)
2018-05-08 09:40:17 +01:00
Matt Caswell
ad96225285 Only auto-retry for DTLS if configured to do so
Otherwise we may end up in a hang when using blocking sockets

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6170)
2018-05-08 09:40:17 +01:00
Matt Caswell
f20404fce9 Don't fail on an out-of-order CCS in DTLS
Fixes #4929

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6170)
2018-05-08 09:40:17 +01:00
Matt Caswell
f054160a19 Fix comment in ssl_locl.h
The ciphers field in a session contains the stack of ciphers offered by
the client.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6113)
2018-05-02 23:30:46 +01:00
Matt Caswell
a216df599a Fix SSL_get_shared_ciphers()
The function SSL_get_shared_ciphers() is supposed to return ciphers shared
by the client and the server. However it only ever returned the client
ciphers.

Fixes #5317

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6113)
2018-05-02 23:30:46 +01:00
Benjamin Kaduk
c4fa1f7fc0 Fix regression with session cache use by clients
Commit d316cdcf6d introduced some extra
checks into the session-cache update procedure, intended to prevent
the caching of sessions whose resumption would lead to a handshake
failure, since if the server is authenticating the client, there needs to
be an application-set "session id context" to match up to the authentication
context.  While that change is effective for its stated purpose, there
was also some collatoral damage introduced along with the fix -- clients
that set SSL_VERIFY_PEER are not expected to set an sid_ctx, and so
their usage of session caching was erroneously denied.

Fix the scope of the original commit by limiting it to only acting
when the SSL is a server SSL.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5967)
2018-05-01 11:19:20 -05:00
Matt Caswell
6ec5fce25e Update copyright year
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6145)
2018-05-01 13:34:30 +01:00
Dr. Matthias St. Pierre
32c6985349 Fix mixed indentation (and other whitespace issues)
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6094)
2018-04-26 21:34:46 +02:00
Rich Salz
fe1128dc2a Fix last(?) batch of malloc-NULL places
Add a script to find them in the future

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/6103)
2018-04-26 14:02:24 -04:00
Matt Caswell
f80c864318 Fix typo in the definition of tls13_ciphers
SSL_kANY, and SSL_aANY were placed in the wrong fields. It makes no
functional difference since these macros evaluate to 0 anyway, which is
the correct value for these fields.

Fixes #6048

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6095)
2018-04-26 16:35:12 +01:00
Matt Caswell
ca50cd911c Fix the MAX_CURVELIST definition
The MAX_CURVELIST macro defines the total number of in-built SSL/TLS curves
that we support. However it has not been updated as new curves are added.

Fixes #5232

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/6065)
2018-04-25 10:20:43 +01:00
Matt Caswell
447cc0ad73 In a reneg use the same client_version we used last time
In 1.0.2 and below we always send the same client_version in a reneg
ClientHello that we sent the first time around, regardless of what
version eventually gets negotiated. According to a comment in
statem_clnt.c this is a workaround for some buggy servers that choked if
we changed the version used in the RSA encrypted premaster secret.

In 1.1.0+ this behaviour no longer occurs. This restores the original
behaviour.

Fixes #1651

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6059)
2018-04-24 09:54:31 +01:00
Matt Caswell
7500bc337a Allow TLSv1.3 EC certs to use compressed points
The spec does not prohib certs form using compressed points. It only
requires that points in a key share are uncompressed. It says nothing
about point compression for certs, so we should not fail if a cert uses a
compressed point.

Fixes #5743

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/6055)
2018-04-24 09:28:17 +01:00
Matt Caswell
22eb2d1c80 Remove some logically dead code
This dead code should have been removed as part of #5874 but got missed.

Found by Coverity.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/6049)
2018-04-24 09:16:20 +01:00
Matt Caswell
ededc88dd5 Improve backwards compat with 1.0.2 for ECDHParameters
In 1.0.2 you could configure automatic ecdh params by using the
ECDHParameters config directive and setting it to the value
"+Automatic" or just "Automatic". This is no longer required in 1.1.0+
but we still recognise the "+Automatic" keyword for backwards compatibility.
However we did not recognise just "Automatic" without the leading "+" which
is equally valid. This commit fixes that omission.

Fixes #4113

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6035)
2018-04-24 09:09:43 +01:00
Matt Caswell
5b79813b23 Fix SSL_pending() for DTLS
DTLS was not correctly returning the number of pending bytes left in
a call to SSL_pending(). This makes the detection of truncated packets
almost impossible.

Fixes #5478

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6020)
2018-04-20 11:51:57 +01:00
Matt Caswell
4ce787b97a Make sure SSL_in_init() returns 0 at SSL_CB_HANDSHAKE_DONE
In 1.1.0 and before calling SSL_in_init() from the info_callback
at SSL_CB_HANDSHAKE_DONE would return 0. This commit fixes it so
that it does again for 1.1.1. This broke Node.

Fixes #4574

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6019)
2018-04-20 11:46:12 +01:00
Peter Wu
01a2a65488 Add support for logging early exporter secret
This will be necessary to enable Wireshark to decrypt QUIC 0-RTT data.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5702)
2018-04-18 08:15:00 +01:00
Peter Wu
6329ce8fd8 Add support for logging TLS 1.3 exporter secret
NSS 3.34 and boringssl have support for "EXPORTER_SECRET"
(https://bugzilla.mozilla.org/show_bug.cgi?id=1287711) which is needed
for QUIC 1-RTT decryption support in Wireshark.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5702)
2018-04-18 08:15:00 +01:00
Matt Caswell
a682365728 Check the return from EVP_PKEY_get0_DH()
Fixes #5934

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5983)
2018-04-17 17:09:09 +01:00
Matt Caswell
bd7775e14a Fix assertion failure in SSL_set_bio()
If SSL_set_bio() is called with a NULL wbio after a failed connection then
this can trigger an assertion failure. This should be valid behaviour and
the assertion is in fact invalid and can simply be removed.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5966)
2018-04-17 17:02:33 +01:00
Matt Caswell
7f9f5f71e4 Make sure info callback knows about all handshake start events
The first session ticket sent by the server is actually tacked onto the
end of the first handshake from a state machine perspective. However in
reality this is a post-handshake message, and should be preceeded by a
handshake start event from an info callback perspective.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5874)
2018-04-17 16:51:03 +01:00
Matt Caswell
c2c1d8a495 Call the info callback on all handshake done events
Fixes #5721

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5874)
2018-04-17 16:51:03 +01:00
Matt Caswell
ded4a83d31 Ignore the status_request extension in a resumption handshake
We cannot provide a certificate status on a resumption so we should
ignore this extension in that case.

Fixes #1662

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/5896)
2018-04-17 16:41:01 +01:00
Bernd Edlinger
dbabc86296 Add a config option to disable automatic config loading
./config no-autoload-config

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5959)
2018-04-17 16:33:15 +02:00
Richard Levitte
28428130db Update copyright year
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5990)
2018-04-17 15:18:40 +02:00
Matt Caswell
d8f031e890 Move the loading of the ssl_conf module to libcrypto
The GOST engine needs to be loaded before we initialise libssl. Otherwise
the GOST ciphersuites are not enabled. However the SSL conf module must
be loaded before we initialise libcrypto. Otherwise we will fail to read
the SSL config from a config file properly.

Another problem is that an application may make use of both libcrypto and
libssl. If it performs libcrypto stuff first and OPENSSL_init_crypto()
is called and loads a config file it will fail if that config file has
any libssl stuff in it.

This commit separates out the loading of the SSL conf module from the
interpretation of its contents. The loading piece doesn't know anything
about SSL so this can be moved to libcrypto. The interpretation of what it
means remains in libssl. This means we can load the SSL conf data before
libssl is there and interpret it when it later becomes available.

Fixes #5809

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5818)
2018-04-05 15:30:12 +01:00
Matt Caswell
a53b5be6a0 Fix configuration of TLSv1.3 ciphersuites
Configuration of TLSv1.3 ciphersuites wasn't working in some cases.

Fixes #5740

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5855)
2018-04-04 16:17:26 +01:00
cedral
d8fa9324d2 Visual Studio 2017 debug build warning error on 32 bit build
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/5799)
2018-04-04 14:54:47 +02:00
Rich Salz
cdb10bae3f Set error code on alloc failures
Almost all *alloc failures now set an error code.

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/5842)
2018-04-03 11:31:16 -04:00
Kurt Roeckx
4cffafe967 Use the private RNG for data that is not public
Reviewed-by: Dr. Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Rich Salz <rsalz@openssl.org>

Fixes: #4641
GH: #4665
2018-04-02 22:22:43 +02:00
Matt Caswell
803cc8c7d4 Revert commit 4a56d9a2
We have been unable to trace the contributor of that code to gain their
agreement for the licence change so the code has to be removed.

This commit reverts that contribution. The contribution had no functional
impact so the original way of doing things is still valid. However the
surrounding code has changed significantly so that the exact code as it
was orignally cannot be used. This commit uses the original code as a basis,
but rewrites it to use the PACKET API.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5808)
2018-03-30 19:28:33 +01:00
Matt Caswell
7b4d3ffaf6 GOST MAC algorithms don't support EVP_PKEY_new_raw_private_key()
We should use the old EVP_PKEY_new_mac_key() instead.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5808)
2018-03-30 19:28:33 +01:00
Matt Caswell
83cf3423f0 Update trace code to know about GOST ciphersuites
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5808)
2018-03-30 19:28:33 +01:00
Rich Salz
c6d38183d6 Rewrite the X509->alert mapping code
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5780)
2018-03-28 15:34:16 -04:00
Matt Caswell
dcf8b01f44 Tolerate a Certificate using a non-supported group on server side
If a server has been configured to use an ECDSA certificate, we should
allow it regardless of whether the server's own supported groups list
includes the certificate's group.

Fixes #2033

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/5601)
2018-03-28 15:08:09 +01:00
Rich Salz
e6e9170d6e Allow NULL for some _free routines.
Based on the description in https://github.com/openssl/openssl/pull/5757,
this re-implements the "allow NULL to be passed" behavior of a number of
xxx_free routines.  I also fixed up some egregious formatting errors
that were nearby.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5761)
2018-03-27 16:25:08 -04:00
Philippe Antoine
dee0cc108f statem/statem_clnt.c: omit redundant check in tls_construct_client_hello.
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5729)
2018-03-27 20:03:15 +02:00
Matt Caswell
320a81277e Remove some code for a contributor that we cannot find
This removes some code because we cannot trace the original contributor
to get their agreement for the licence change (original commit e03ddfae).

After this change there will be numerous failures in the test cases until
someone rewrites the missing code.

All *_free functions should accept a NULL parameter. After this change
the following *_free functions will fail if a NULL parameter is passed:

BIO_ACCEPT_free()
BIO_CONNECT_free()
BN_BLINDING_free()
BN_CTX_free()
BN_MONT_CTX_free()
BN_RECP_CTX_free()
BUF_MEM_free()
COMP_CTX_free()
ERR_STATE_free()
TXT_DB_free()
X509_STORE_free()
ssl3_free()
ssl_cert_free()
SSL_SESSION_free()
SSL_free()

[skip ci]

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/5757)
2018-03-27 17:15:24 +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
Philippe Antoine
161ff6c5fa Adds multiple checks to avoid buffer over reads
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/5675)
2018-03-25 11:08:33 +02:00
FdaSilvaYY
1fb6b0bf3e Unify s_client/s_server srtp profiles option handling
Add missing guards around STRP-related fields
Remove two unneeded global variables: my 2'cents to #4679
Merge definition and instantiation of srpsrvparm global.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4908)
2018-03-21 16:15:50 -04:00
Philippe Antoine
63ff89ab71 Fixes integer underflow with SSL_trace support
Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5706)
2018-03-21 17:33:20 +00:00
Matt Caswell
424afe931e Don't wait for dry at the end of a handshake
For DTLS/SCTP we were waiting for a dry event during the call to
tls_finish_handshake(). This function just tidies up various internal
things, and after it completes the handshake is over. I can find no good
reason for waiting for a dry event here, and nothing in RFC6083 suggests
to me that we should need to. More importantly though it seems to be
wrong. It is perfectly possible for a peer to send app data/alerts/new
handshake while we are still cleaning up our handshake. If this happens
then we will never get the dry event and so we cannot continue.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5084)
2018-03-21 10:27:29 +00:00
Matt Caswell
2e92af5ea5 Check for alerts while waiting for a dry event
At a couple of points in a DTLS/SCTP handshake we need to wait for a dry
event before continuing. However if an alert has been sent by the peer
then we will never receive that dry event and an infinite loop results.

This commit changes things so that we attempt to read a message if we
are waiting for a dry event but haven't got one yet. This should never
succeed, but any alerts will be processed.

Fixes #4763

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5084)
2018-03-21 10:27:29 +00:00
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
Benjamin Kaduk
d316cdcf6d Do not cache sessions with zero sid_ctx_length when SSL_VERIFY_PEER
The sid_ctx is something of a "certificate request context" or a
"session ID context" -- something from the application that gives
extra indication of what sort of thing this session is/was for/from.
Without a sid_ctx, we only know that there is a session that we
issued, but it could have come from a number of things, especially
with an external (shared) session cache.  Accordingly, when resuming,
we will hard-error the handshake when presented with a session with
zero-length sid_ctx and SSL_VERIFY_PEER is set -- we simply have no
information about the peer to verify, so the verification must fail.

In order to prevent these future handshake failures, proactively
decline to add the problematic sessions to the session cache.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5175)
2018-03-20 19:30:48 -05:00
Matt Caswell
b0edda11cb Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5689)
2018-03-20 13:08:46 +00:00
Todd Short
4bfb96f2ad Place ticket keys into secure memory
Place the session ticket AES and HMAC keys into secure memory.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2351)
2018-03-19 11:07:08 -04:00
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
Tomas Mraz
8a5ed9dce8 Apply system_default configuration on SSL_CTX_new().
When SSL_CTX is created preinitialize it with system default
configuration from system_default section.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4848)
2018-03-19 10:22:49 -04:00
Kurt Roeckx
16cfc2c90d Don't use a ssl specific DRBG anymore
Since the public and private DRBG are per thread we don't need one
per ssl object anymore. It could also try to get entropy from a DRBG
that's really from an other thread because the SSL object moved to an
other thread.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/5547)
2018-03-19 15:04:40 +01:00
Bernd Edlinger
d4ef4fbf46 Fix a crash in SSLfatal due to invalid enc_write_ctx
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5645)
2018-03-19 14:16:54 +01:00
Matt Caswell
66d7de1634 Add an anti-replay mechanism
If the server is configured to allow early data then we check if the PSK
session presented by the client is available in the cache or not. If it
isn't then this may be a replay and we disallow it. If it is then we allow
it and remove the session from the cache. Note: the anti-replay protection
is not used for externally established PSKs.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5644)
2018-03-19 12:21:41 +00:00
Matt Caswell
f023ba2df8 Don't update the session cache when processing a client certificate in TLSv1.3
We should only update the session cache when we issue a NewSessionTicket.
These are issued automatically after processing a client certificate.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5644)
2018-03-19 12:21:17 +00:00
Matt Caswell
32305f8850 Always call the new_session_cb when issuing a NewSessionTicket in TLSv1.3
Conceptually in TLSv1.3 there can be multiple sessions associated with a
single connection. Each NewSessionTicket issued can be considered a
separate session. We can end up issuing multiple NewSessionTickets on a
single connection at the moment (e.g. in a post-handshake auth scenario).
Each of those issued tickets should have the new_session_cb called, it
should go into the session cache separately and it should have a unique
id associated with it (so that they can be found individually in the
cache).

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5644)
2018-03-19 12:21:17 +00:00
Dr. Matthias St. Pierre
dd07e68b20 Fix miscellaneous typos in docs and source
- d2i_PKC8PrivateKey -> d2i_PKCS8PrivateKey
- bechmark -> benchmark
- ciperhsuite -> ciphersuite
- EncyptedPreMasterSecret -> EncryptedPreMasterSecret

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5570)
2018-03-17 18:24:03 +01:00
Bernd Edlinger
a080c3e816 Fix a memory leak in tls1_mac
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5650)
2018-03-17 08:25:25 +01:00
Bernd Edlinger
302d1697fe Fix a memory leak in n_ssl3_mac
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5648)
2018-03-17 08:23:43 +01:00
Dr. Matthias St. Pierre
31393fd906 RAND_DRBG: add a function for setting the default DRBG type and flags
This commit adds a new api RAND_DRBG_set_defaults() which sets the
default type and flags for new DRBG instances. See also #5576.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5632)
2018-03-16 18:31:30 +01:00
Dr. Matthias St. Pierre
6decf9436f Publish the RAND_DRBG API
Fixes #4403

This commit moves the internal header file "internal/rand.h" to
<openssl/rand_drbg.h>, making the RAND_DRBG API public.
The RAND_POOL API remains private, its function prototypes were
moved to "internal/rand_int.h" and converted to lowercase.

Documentation for the new API is work in progress on GitHub #5461.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5462)
2018-03-15 18:58:38 +01:00
Matt Caswell
f929439f61 Rename EVP_PKEY_new_private_key()/EVP_PKEY_new_public_key()
Renamed to EVP_PKEY_new_raw_private_key()/EVP_new_raw_public_key() as per
feedback.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5520)
2018-03-15 12:47:27 +00:00
Matt Caswell
e32b52a27e Add support for setting raw private HMAC keys
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5520)
2018-03-15 12:47:27 +00:00
Matt Caswell
16ff13427f Only update the server session cache when the session is ready
In TLSv1.3 the session is not ready until after the end of the handshake
when we are constructing the NewSessionTicket.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5621)
2018-03-15 08:59:27 +00:00
Matt Caswell
fa25763b55 Put the default set of TLSv1.3 ciphersuites in a header file
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5392)
2018-03-14 10:43:53 +00:00
Matt Caswell
f865b08143 Split configuration of TLSv1.3 ciphers from older ciphers
With the current mechanism, old cipher strings that used to work in 1.1.0,
may inadvertently disable all TLSv1.3 ciphersuites causing connections to
fail. This is confusing for users.

In reality TLSv1.3 are quite different to older ciphers. They are much
simpler and there are only a small number of them so, arguably, they don't
need the same level of control that the older ciphers have.

This change splits the configuration of TLSv1.3 ciphers from older ones.
By default the TLSv1.3 ciphers are on, so you cannot inadvertently disable
them through your existing config.

Fixes #5359

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5392)
2018-03-14 10:15:50 +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
3295d24238 Use the TLSv1.3 record header as AAD
As of TLSv1.3 draft-25 the record header data must be used as AAD

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/5604)
2018-03-14 09:51:20 +00:00
Tim Hudson
3b855b1f89 update SRP copyright notice
As per discussion with Peter Sylvester

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5603)
2018-03-13 18:33:44 +10:00
Matt Caswell
61cd0c946b Fix enable-ssl-trace
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5600)
2018-03-12 19:45:14 +00:00
Benjamin Saunders
3fa2812f32 Introduce SSL_CTX_set_stateless_cookie_{generate,verify}_cb
These functions are similar to SSL_CTX_set_cookie_{generate,verify}_cb,
but used for the application-controlled portion of TLS1.3 stateless
handshake cookies rather than entire DTLSv1 cookies.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5463)
2018-03-12 19:34:13 +00:00
Todd Short
df0fed9aab Session Ticket app data
Adds application data into the encrypted session ticket

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3802)
2018-03-12 10:31:09 +00:00
Benjamin Kaduk
ee36b963ae Reuse extension_is_relevant() in should_add_extension()
At the core of things is the concept that each extension is only
defined in certain context(s) -- the ClientHello, EncryptedExtensions,
etc., and sometimes only for a specific protocol or protocol range;
we want to enforce that we only parse or generate extensions in the
context(s) for which they are defined.  There is some subtlety here,
in that the protocol version in use is not known when generating the
ClientHello (but it is known when the ClientHello extensions are
being parsed!), so the SSL_IS_TLS13() macro must be used with caution.
Nonetheless, by making assertions about whether we are acting in a
server role and whether the current context is (not) a ClientHello,
we can consolidate almost all of the logic for determining whether
an extension is permitted in a given protocol message, whether we
are generating or parsing that message.

The only logic that remains separate relates to generating the ClientHello,
as it depends on an external factor (the maximum permitted TLS version) that
is not defined in the parsing context.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2945)
2018-03-09 11:17:32 -06:00
Todd Short
37933acbea Add SSL/SSL_CTX_use_cert_and_key()
Add functions that will do the work of assigning certificate, privatekey
and chain certs to an SSL or SSL_CTX. If no privatekey is given, use the
publickey. This will permit the keys to pass validation for both ECDSA
and RSA. If a private key has already been set for the certificate, it
is discarded. A real private key can be set later.

This is an all-or-nothing setting of these parameters. Unlike the
SSL/SSL_CTX_use_certificate() and SSL/SSL_CTX_use_PrivateKey() functions,
the existing cert or privatekey is not modified (i.e. parameters copied).
This permits the existing cert/privatekey to be replaced.

It replaces the sequence of:
* SSL_use_certificate()
* SSL_use_privatekey()
* SSL_set1_chain()
And may actually be faster, as multiple checks are consolidated.

The private key can be NULL, if so an ENGINE module needs to contain the
actual private key that is to be used.

Note that ECDH (using the certificate's ECDSA key) ciphers do not work
without the private key being present, based on how the private key is
used in ECDH. ECDH does not offer PFS; ECDHE ciphers should be used instead.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/1130)
2018-03-09 10:28:04 -06:00
Matt Caswell
e440f51395 Give more information in the SSL_stateless return code
Allow users to distinguish between an error occurring and an HRR being
issued.

Fixes #5549

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5562)
2018-03-09 11:37:58 +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
Matt Caswell
e73c6eaeff Tolerate TLSv1.3 PSKs that are a different size to the hash size
We also default to SHA256 as per the spec if we do not have an explicit
digest defined.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5554)
2018-03-09 11:22:23 +00:00
FdaSilvaYY
d420729b9e Duplicate entries ssl_handshake_tbl trace entries...
... and add some missing known values.
Sort ssl/tls extension array list

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5304)
2018-03-08 10:32:34 -05:00
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
0e1d6ecf37 Add X448/Ed448 support to libssl
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/5470)
2018-03-05 11:39:20 +00:00
Benjamin Kaduk
c39e4048b5 Do not set a nonzero default max_early_data
When early data support was first added, this seemed like a good
idea, as it would allow applications to just add SSL_read_early_data()
calls as needed and have things "Just Work".  However, for applications
that do not use TLS 1.3 early data, there is a negative side effect.
Having a nonzero max_early_data in a SSL_CTX (and thus, SSL objects
derived from it) means that when generating a session ticket,
tls_construct_stoc_early_data() will indicate to the client that
the server supports early data.  This is true, in that the implementation
of TLS 1.3 (i.e., OpenSSL) does support early data, but does not
necessarily indicate that the server application supports early data,
when the default value is nonzero.  In this case a well-intentioned
client would send early data along with its resumption attempt, which
would then be ignored by the server application, a waste of network
bandwidth.

Since, in order to successfully use TLS 1.3 early data, the application
must introduce calls to SSL_read_early_data(), it is not much additional
burden to require that the application also calls
SSL_{CTX_,}set_max_early_data() in order to enable the feature; doing
so closes this scenario where early data packets would be sent on
the wire but ignored.

Update SSL_read_early_data.pod accordingly, and make s_server and
our test programs into applications that are compliant with the new
requirements on applications that use early data.

Fixes #4725

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5483)
2018-02-28 21:47:09 -06:00
Kurt Roeckx
d91f45688c Tell the ciphers which DRBG to use for generating random bytes.
Reviewed-by: Richard Levitte <levitte@openssl.org>
GH: #4672
2018-02-28 21:20:01 +01:00
Tatsuhiro Tsujikawa
b38ede8043 Export keying material using early exporter master secret
This commit adds SSL_export_keying_material_early() which exports
keying material using early exporter master secret.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5252)
2018-02-26 13:35:54 +00:00
Rich Salz
77376c0507 Remove OSSLzu, and fix the one place that used it.
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5439)
2018-02-23 16:49:59 -05:00
Pauli
d592734420 Remove unreachable statement.
The return at the end isn't reachable.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5442)
2018-02-23 10:55:50 +10:00
Matt Caswell
ee76349525 Sanity check the ticket length before using key name/IV
This could in theory result in an overread - but due to the over allocation
of the underlying buffer does not represent a security issue.

Thanks to Fedor Indutny for reporting this issue.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/5414)
2018-02-21 11:19:11 +00:00
Matt Caswell
5f7470df83 The record version for ClientHello2 should be TLS1.2
According to TLSv1.3 draft-24 the record version for ClientHello2 should
be TLS1.2, and not TLS1.0 as it is now.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5377)
2018-02-19 14:02:33 +00:00
Matt Caswell
c471521243 If s->ctx is NULL then this is an internal error
Coverity was complaining because we checked if s->ctx is NULL and then
later on in the function deref s->ctx anyway. In reality if s->ctx is
NULL then this is an internal error.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/5334)
2018-02-15 15:14:45 +00:00
Matt Caswell
6e99ae58c8 Ignore an s_client psk in TLSv1.3 if not TLSv1.3 suitable
The s_client psk_use_session_cb callback has a comment stating that we
should ignore a key that isn't suitable for TLSv1.3. However we were
actually causing the connection to fail. Changing the return value fixes
the issue.

Also related to this is that the early_data extension was not marked as
TLSv1.3 only which it should be.

Fixes #5202

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/5205)
2018-02-14 15:42:36 +00:00
Dr. Matthias St. Pierre
8164d91d18 DRBG: make the derivation function the default for ctr_drbg
The NIST standard presents two alternative ways for seeding the
CTR DRBG, depending on whether a derivation function is used or not.
In Section 10.2.1 of NIST SP800-90Ar1 the following is assessed:

  The use of the derivation function is optional if either an
  approved RBG or an entropy source provides full entropy output
  when entropy input is requested by the DRBG mechanism.
  Otherwise, the derivation function shall be used.

Since the OpenSSL DRBG supports being reseeded from low entropy random
sources (using RAND_POOL), the use of a derivation function is mandatory.
For that reason we change the default and replace the opt-in flag
RAND_DRBG_FLAG_CTR_USE_DF with an opt-out flag RAND_DRBG_FLAG_CTR_NO_DF.
This change simplifies the RAND_DRBG_new() calls.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5294)
2018-02-13 17:32:54 +01:00
Matt Caswell
6738bf1417 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
2018-02-13 13:59:25 +00:00
Matt Caswell
1d0c08b496 The function ssl_get_min_max_version() can fail
We should always check the return code.

This fixes a coverity issue.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5308)
2018-02-12 10:06:39 +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
Bernd Edlinger
ebc20cfa74 Swap the check in ssl3_write_pending to avoid using
the possibly indeterminate pointer value in wpend_buf.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5305)
2018-02-09 19:52:31 +01:00
Matt Caswell
5d67110173 Don't calculate the Finished MAC twice
In <= TLSv1.2 a Finished message always comes immediately after a CCS
except in the case of NPN where there is an additional message between
the CCS and Finished. Historically we always calculated the Finished MAC
when we processed the CCS. However to deal with NPN we also calculated it
when we receive the Finished message. Really this should only have been
done if we hand negotiated NPN.

This simplifies the code to only calculate the MAC when we receive the
Finished. In 1.1.1 we need to do it this way anyway because there is no
CCS (except in middlebox compat mode) in TLSv1.3.

Coincidentally, this commit also fixes the fact that no-nextprotoneg does
not currently work in master.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5285)
2018-02-09 15:27:32 +00:00
Tatsuhiro Tsujikawa
1f5878b8e2 Make sure that exporting keying material is allowed
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4944)
2018-02-02 23:54:14 +00:00
Tatsuhiro Tsujikawa
b1a51abb93 Remove generation of exporter master secret on client application traffic
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4944)
2018-02-02 23:52:59 +00:00
Tatsuhiro Tsujikawa
2221ec10ab Generate exporter_master_secret after server Finished
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4944)
2018-02-02 23:52:59 +00:00
Todd Short
e43e6b1951 Fix some minor code nits
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
Todd Short
88834998dd Free pha_dgst in SSL_clear()
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
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
Matt Caswell
3faa07b582 Move decisions about whether to accept reneg into the state machine
If a server receives an unexpected ClientHello then we may or may not
accept it. Make sure all such decisions are made in the state machine
and not in the record layer. This also removes a disparity between the
TLS and the DTLS code. The TLS code was making this decision in the
record layer, while the DTLS code was making it later.

Finally it also solves a problem where a warning alert was being sent
during tls_setup_handshake() and the function was returning a failure
return code. This is problematic because it can be called from a
transition function - which we only allow fatal errors to occur in.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5190)
2018-01-30 11:28:12 +00:00
Kurt Roeckx
20928ff635 Add RAND_DRBG_bytes
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/4752)
2018-01-29 12:42:06 +01:00
Benjamin Kaduk
36c91d13d1 Fix ssl-trace with TLS 1.3 draft-23 PSS sigalgs
The latest TLS 1.3 draft split the RSA-PSS signature schemes into
two versions that indicate the OID of the RSA key being used.
This forced us to rename the preprocessor defines for the sigalg
values, and the ssl-trace code was not adopted to match, since
it was not enabled int the default build.

Belatedly update the ssl_sigalg_tbl in the trace code to match.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5174)
2018-01-26 09:21:08 -06:00
Benjamin Kaduk
c1acef9263 Fix uninitialized read in sigalg parsing code
The check for a duplicate value was reading one entry past
where it was supposed to, getting an uninitialized value.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5172)
2018-01-25 19:40:35 -06:00
Benjamin Kaduk
c589c34e61 Add support for the TLS 1.3 signature_algorithms_cert extension
The new extension is like signature_algorithms, but only for the
signature *on* the certificate we will present to the peer (the
old signature_algorithms extension is still used for signatures that
we *generate*, i.e., those over TLS data structures).

We do not need to generate this extension, since we are the same
implementation as our X.509 stack and can handle the same types
of signatures, but we need to be prepared to receive it, and use the received
information when selecting what certificate to present.

There is a lot of interplay between signature_algorithms_cert and
signature_algorithms, since both affect what certificate we can
use, and thus the resulting signature algorithm used for TLS messages.
So, apply signature_algorithms_cert (if present) as a filter on what
certificates we can consider when choosing a certificate+sigalg
pair.

As part of this addition, we also remove the fallback code that let
keys of type EVP_PKEY_RSA be used to generate RSA-PSS signatures -- the
new rsa_pss_pss_* and rsa_pss_rsae_* signature schemes have pulled
the key type into what is covered by the signature algorithm, so
we should not apply this sort of compatibility workaround.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5068)
2018-01-25 12:57:22 -06:00
Benjamin Kaduk
fd5e1a8c4a Propagate TLS 1.3 sigalgs through tls1_set_sigalgs()
Our historical SSL{,_CTX}_set_sigalgs() APIs take an array of
NID pairs (hash and signature), and our parser for manually
specifying unified sigalgs (that do not necessarily correspond
to an actual signature+hash pair) was transiting via (the implementation
of) this historical API.  The TLS 1.3 draft-23 has introduced
signature schemes that have identical signature type and hash type,
differing only in the (RSA) public key OID, which prevents
the rsa_pss_pss_* schemes from being properly identified and
sent on the wire.

To fix the issue, parse sigalg strings directly into SIGALG_LOOKUP
objects, and pass around an array of uint16 wire protocol values
instead of NID pairs.  The old interface is retained for API
compatibility but will become less and less useful with time.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5068)
2018-01-25 12:05:57 -06:00
Benjamin Kaduk
f55e99f7dd Add TLS 1.3 draft-23 PSS signature algorithms
We now have a split in the signature algorithms codepoint space for
whether the certificate's key is for rsaEncryption or a PSS-specific
key, which should let us get rid of some special-casing that we
previously needed to try to coax rsaEncryption keys into performing PSS.
(This will be done in a subsequent commit.)

Send the new PSS-with-PSS-specific key first in our list, so that
we prefer the new technology to the old one.

We need to update the expected certificate type in one test,
since the "RSA-PSS+SHA256" form now corresponds to a public key
of type rsaEncryption, so we should expect the server certificate
type to be just "RSA".  If we want to get a server certificate
type of "RSA-PSS", we need to use a new signature algorithm
that cannot be represented as signature+hash, so add a test for that
as well.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5068)
2018-01-25 12:05:54 -06:00
Matt Caswell
97ea1e7f42 Updates following review of SSL_stateless() code
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4435)
2018-01-24 18:02:37 +00:00
Matt Caswell
d0debc0a1c Add a timestamp to the cookie
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4435)
2018-01-24 18:02:37 +00:00
Matt Caswell
e93597193d Don't send unexpected_message if we receive CCS while stateless
Probably this is the CCS between the first and second ClientHellos. It
should be ignored.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4435)
2018-01-24 18:02:37 +00:00
Matt Caswell
dd77962e09 Fix the cookie/key_share extensions for use with SSL_stateless()
Fixes some bugs identified during testing.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4435)
2018-01-24 18:02:36 +00:00
Matt Caswell
d6bb50a5f9 Fix the SSL_stateless() return code
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4435)
2018-01-24 18:02:36 +00:00
Matt Caswell
808d160161 Fix interaction between SSL_stateless() and SSL_clear()
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4435)
2018-01-24 18:02:36 +00:00
Matt Caswell
c36001c3a8 Fix logic around when to send an HRR based on cookies
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4435)
2018-01-24 18:02:36 +00:00
Matt Caswell
042c57539b Add the SSL_stateless() function
This enables sending and receiving of the TLSv1.3 cookie on the server side
as appropriate.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4435)
2018-01-24 18:02:36 +00:00
Matt Caswell
43054d3d73 Add support for sending TLSv1.3 cookies
This just adds the various extension functions. More changes will be
required to actually use them.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4435)
2018-01-24 18:02:35 +00:00
Rich Salz
44f23cd281 Move fprintf after assignment to avoid crash.
Thanks to David Vernet for reporting this.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5140)
2018-01-22 15:14:40 -05:00
Richard Levitte
48e5119a6b Copyright update of more files that have changed this year
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/5110)
2018-01-19 13:34:03 +01:00
Patrick Schlangen
a41a6120cd Make data argument const in SSL_dane_tlsa_add
The data argument of SSL_dane_tlsa_add is used read-only, so it
should be const.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5056)
2018-01-10 12:48:44 -05:00
Matt Caswell
08455bc9b0 Tolerate DTLS alerts with an incorrect version number
In the case of a protocol version alert being sent by a peer the record
version number may not be what we are expecting. In DTLS records with an
unexpected version number are silently discarded. This probably isn't
appropriate for alerts, so we tolerate a mismatch in the minor version
number.

This resolves an issue reported on openssl-users where an OpenSSL server
chose DTLS1.0 but the client was DTLS1.2 only and sent a protocol_version
alert with a 1.2 record number. This was silently ignored by the server.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5018)
2018-01-09 22:00:53 +00:00
Richard Levitte
3c7d0945b6 Update copyright years on all files merged since Jan 1st 2018
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5038)
2018-01-09 05:49:01 +01:00
Tomas Mraz
3e41defe46 Avoid only exact duplicates when creating the accepted CA names list
This avoids situations where third party client is unable to recognize
that the client certificate was issued by the same CA with name differring
only by case or insignificant characters.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4731)
2018-01-08 15:03:14 -05:00
Noah Robbin
bcec0b9488 Use the index that matches the key type (either SSL_PKEY_RSA_PSS_SIGN or SSL_PKEY_RSA).
Extract the RSA key using EVP_PKEY_get0.  Type is checked externally to be either EVP_PKEY_RSA_PSS or EVP_PKEY_RSA.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4389)
2018-01-08 11:49:53 -05:00
Noah Robbin
0fe3db251a Use size of server key when selecting signature algorithm.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4389)
2018-01-08 11:49:53 -05:00
Bernd Edlinger
643d91fea4 Stop using unimplemented cipher classes.
Add comments to no longer usable ciphers.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5023)
2018-01-06 15:14:57 +01:00
Benjamin Kaduk
7bc2bddb14 Permit the "supported_groups" extension in ServerHellos
Although this is forbidden by all three(!) relevant specifications,
there seem to be multiple server implementations in the wild that
send it.  Since we didn't check for unexpected extensions in any
given message type until TLS 1.3 support was added, our previous
behavior was to silently accept these extensions and pass them over
to the custom extension callback (if any).  In order to avoid
regression of functionality, relax the check for "extension in
unexpected context" for this specific case, but leave the protocol
enforcment mechanism unchanged for other extensions and in other
extension contexts.

Leave a detailed comment to indicate what is going on.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4463)
2018-01-03 09:43:54 -06:00
Matt Caswell
818b625d6c Fix trace of TLSv1.3 Certificate Request message
A TLSv1.3 Certificate Request message was issuing a "Message length parse
error" using the -trace option to s_server/s_client.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/5008)
2018-01-02 15:51:23 +00:00
Daniel Bevenius
436ad81f05 Fix minor 'the the' typos
Similar to commit 17b602802114d53017ff7894319498934a580b17(
"Remove extra `the` in SSL_SESSION_set1_id.pod"), this commit removes
typos where additional 'the' have been added.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4999)
2018-01-02 15:30:22 +00:00
Matt Caswell
f7414b0827 Disable partial writes for early data
We don't keep track of the number of bytes written between in the
SSL_write_ex() call and the subsequent flush. If the flush needs to be
retried then we will have forgotten how many bytes actually got written.
The simplest solution is to just disable it for this scenario.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4802)
2017-12-28 17:32:41 +00:00
Matt Caswell
2a8db71713 Don't flush the ClientHello if we're going to send early data
We'd like the first bit of early_data and the ClientHello to go in the
same TCP packet if at all possible to enable things like TCP Fast Open.
Also, if you're only going to send one block of early data then you also
don't need to worry about TCP_NODELAY.

Fixes #4783

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4802)
2017-12-28 17:32:41 +00:00
Bernd Edlinger
8175af50cc Alternate fix for ../test/recipes/80-test_ssl_old.t with no-ec
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4981)
2017-12-27 16:37:22 +01:00
Paul Yang
f69999262a Remove outdated comments
Variables n, d, p are no longer there.

[skip ci]

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4894)
2017-12-26 09:07:10 -05:00
Dr. Matthias St. Pierre
a93ba405b0 Add master DRBG for reseeding
A third shared DRBG is added, the so called master DRBG. Its sole purpose
is to reseed the two other shared DRBGs, the public and the private DRBG.
The randomness for the master DRBG is either pulled from the os entropy
sources, or added by the application using the RAND_add() call.

The master DRBG reseeds itself automatically after a given number of generate
requests, but can also be reseeded using RAND_seed() or RAND_add().
A reseeding of the master DRBG is automatically propagated to the public
and private DRBG. This construction fixes the problem, that up to now
the randomness provided by RAND_add() was added only to the public and
not to the private DRBG.

Signed-off-by: Dr. Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/4402)
2017-12-17 23:12:10 +01:00
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
Daniel Bevenius
b4ff66223b Add comments to NULL func ptrs in bio_method_st
This commit adds comments to bio_method_st definitions where the
function pointers are defined as NULL. Most of the structs have comments
but some where missing and not all consitent.

CLA: trivial

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4881)
2017-12-18 07:04:48 +10:00
Bernd Edlinger
fce78bd4ed Fix invalid function type casts.
Rename bio_info_cb to BIO_info_cb.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4493)
2017-12-15 19:33:48 +01:00
Matt Caswell
758e05c52e Make sure we treat records written after HRR as TLSv1.3
This fixes a bug where some CCS records were written with the wrong TLS
record version.

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
318d3c0e62 Issue a CCS from the client if we received an HRR
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
75259b4346 Fix server side HRR flushing
Flush following the CCS after an HRR. Only flush the HRR if middlebox
compat is turned off.

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
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
7b0a3ce0f9 Ensure CCS sent before early_data has the correct record version
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
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
e7dd763e51 Make sure supported_versions appears in an HRR too
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
6f40214f68 Fix an HRR bug
Ensure that after an HRR we can only negotiate TLSv1.3

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
597c51bc98 Merge HRR into ServerHello
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
db37d32cb8 Send a CCS after ServerHello in TLSv1.3 if using middlebox compat mode
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
066904ccee Send a CCS from a client in an early_data handshake
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
4d02f87063 Send a CCS from the client in a non-early_data handshake
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
fa9f9350f3 Remove TLSv1.3 specific write transition for ClientHello
Since we no longer do version negotiation during the processing of an HRR
we do not need the TLSv1.3 specific write transition for ClientHello

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
fdd9236747 Drop CCS messages received in the TLSv1.3 handshake
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
2d729db2f0 Send TLSv1.2 as the record version when using TLSv1.3
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
a5816a5ab9 Implement session id TLSv1.3 middlebox compatibility mode
Clients will send a "fake" session id and servers must echo it back.

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
Daniel Bevenius
27ab91951c Make BIO_METHOD struct definitions consistent
I noticed that some of the BIO_METHOD structs are placing the name on
the same line as the type and some don't. This commit places the name
on a separate line for consistency (which looks like what the majority
do)

CLA: trivial

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4878)
2017-12-09 21:27:29 +01:00
Daniel Bevenius
6aff543b9b Correct minor typo in ssl_locl.h comment
CLA: trivial

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4880)
2017-12-08 12:02:29 -05:00
Matt Caswell
921d84a0ad Convert the remaining functions in the record layer to use SSLfatal()
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4841)
2017-12-08 16:42:02 +00:00
Matt Caswell
5591a6132e Convert dlts1_write_bytes() to use SSLfatal()
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4841)
2017-12-08 16:42:02 +00:00
Matt Caswell
c285338293 More record layer conversions to use SSLfatal()
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4841)
2017-12-08 16:42:02 +00:00
Matt Caswell
99dd374055 Convert ssl3_read_bytes() to use SSLfatal()
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4841)
2017-12-08 16:42:01 +00:00
Matt Caswell
196f2cbb78 Update ssl3_get_record() to use SSLfatal()
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4841)
2017-12-08 16:42:01 +00:00
Richard Levitte
0a90a6831e In OPENSSL_init_ssl(), run the base ssl init before OPENSSL_init_crypto()
IF OPENSSL_init_ssl() is called with the option flag
OPENSSL_INIT_LOAD_CONFIG, any SSL config will be handled wrongly
(i.e. there will be an attempt to load libssl_conf.so or whatever
corresponds to that on non-Unix platforms).  Therefore, at least
SSL_add_ssl_module() MUST be called before OPENSSL_init_crypto() is
called.  The base ssl init does that, plus adds all kinds of ciphers
and digests, which is harmless.

Fixes #4788

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4792)
2017-12-08 16:08:39 +01:00
Rich Salz
cbe2964821 Consistent formatting for sizeof(foo)
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4872)
2017-12-07 19:11:49 -05:00
Matt Caswell
e1dd8fa00a Fix the check_fatal macro
The check_fatal macro is supposed to only be called if we are already
expecting to be in the fatal state. The macro asserts that we are and
puts us into the fatal state if not.

This issue combined with the problem fixed in the previous commit meant
that the fuzzer detected a crash at a point in the processing when we
should have already been in the fatal state.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4847)
2017-12-06 14:56:28 +00:00
Matt Caswell
2894e9cb6d Fix bug in TLSv1.3 PSK processing
The recent SSL error overhaul left a case where an error occurs but
SSLfatal() is not called.

Credit to OSSfuzz for finding this issue.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4847)
2017-12-06 14:56:28 +00:00
Matt Caswell
dd5a4279f9 Fix some formatting nits
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:37:01 +00:00
Matt Caswell
e7d961e994 Remove spurious whitespace
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
8e7677aeac Update an error reason code to be ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
The most likely explanation for us ending up at this point in the code
is that we were called by the user application incorrectly - so use an
appropriate error code.

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
29bfd5b79a Add some more cleanups
Follow up from the conversion to use SSLfatal() in the state machine to
clean things up a bit more.

[extended tests]

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
f9f674eb76 Assert that SSLfatal() only gets called once
We shouldn't call SSLfatal() multiple times for the same error condition.

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
47e2ee0722 Add some sanity checks for the fatal error condition
Sometimes at the top level of the state machine code we know we are
supposed to be in a fatal error condition. This commit adds some sanity
checks to ensure that SSLfatal() has been called.

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
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
d273b60b41 Convert more functions in ssl/statem/statem_dtls.c 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
d4d2f3a4c1 Convert more functions in ssl/statem/statem.c 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
3ec8d113a5 Convert remaining functions in statem_srvr.c 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
a2c2e00050 Convert remaining functions in statem_clnt.c 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
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
4752c5deb2 Replace some usage of SSLerr with SSLfatal()
This is an initial step towards using SSLfatal() everywhere. Initially in
this commit and in subsequent commits we focus on the state machine code.

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
1f359471f9 Provide an SSLfatal() macro
Typically if a fatal error occurs three things need to happen:

- Put an error on the error queue
- Send an alert
- Put the state machine into the error state

Although all 3 of these things need to be done every time we hit a fatal
error the responsibilities for doing this are distributed throughout the
code. The place where the error goes on the queue, where the alert gets
sent and where the state machine goes into the error state are almost
invariably different. It has been a common pattern to pass alert codes up
and down the stack to get the alert information from the point in the code
where the error is detected to the point in the code where the alert gets
sent.

This commit provides an SSLfatal() macro (backed by an ossl_statem_fatal
function) that does all 3 of the above error tasks. This is largely a drop
in replacement for SSLerr, but takes a couple of extra parameters (the SSL
object, and an alert code).

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4778)
2017-12-04 13:31:48 +00:00
Todd Short
e670e90319 Add sk_new_reserve support
This is a specific 1.1.1 change; do not squash if the chacha
prioritization code is to be backported

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4436)
2017-11-30 07:13:09 +10:00
Todd Short
e1c7871de8 Use ChaCha only if prioritized by clnt
IFF the client has ChaCha first, and server cipher priority is used,
and the new SSL_OP_PRIORITIZE_CHACHA_FOR_MOBILE option is used,
then reprioritize ChaCha above everything else. This way, A matching
ChaCha cipher will be selected if there is a match. If no ChaCha ciphers
match, then the other ciphers are used.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4436)
2017-11-30 07:13:08 +10:00
Matt Caswell
881dfedeb5 Fix SSL_state_string() and SSL_state_string_long()
These functions needed updates for the various state machine states that
have been added for TLSv1.3.

Fixes #4795

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4801)
2017-11-28 10:24:23 +00:00
Matt Caswell
281bf2332c If a server is not acknowledging SNI then don't reject early_data
SNI needs to be consistent before we accept early_data. However a
server may choose to not acknowledge SNI. In that case we have to
expect that a client may send it anyway. We change the consistency
checks so that not acknowledging is treated more a like a "wild card",
accepting any SNI as being consistent.

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4738)
2017-11-21 17:46:22 +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
Andy Polyakov
802127e8fc ssl/ssl_asn1.c: 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...

[Keep this commit separate as reminder for time overhaul.]

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4721)
2017-11-13 10:58:21 +01:00
Josh Soref
46f4e1bec5 Many spelling fixes/typo's corrected.
Around 138 distinct errors found and fixed; thanks!

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3459)
2017-11-11 19:03:10 -05:00
FdaSilvaYY
f479eab227 style : fix some if(...
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4457)
2017-11-07 17:09:24 +01:00
Matt Caswell
1c47d35a03 Mark a zero length record as read
If SSL_read() is called with a zero length buffer, and we read a zero length
record then we should mark that record as read.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4685)
2017-11-07 11:07:17 +00:00
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
Benjamin Kaduk
3be08e3011 Provide SSL_CTX.stats.sess_accept for switched ctxs
We currently increment the SSL_CTX stats.sess_accept field in
tls_setup_handshake(), which is invoked from the state machine well
before ClientHello processing would have had a chance to switch
the SSL_CTX attached to the SSL object due to a provided SNI value.
However, stats.sess_accept_good is incremented in tls_finish_handshake(),
and uses the s->ctx.stats field (i.e., the new SSL_CTX that was switched
to as a result of SNI processing).  This leads to the confusing
(nonsensical) situation where stats.sess_accept_good is larger than
stats.sess_accept, as the "sess_accept" value was counted on the
s->session_ctx.

In order to provide some more useful numbers, increment
s->ctx.stats.sess_accept after SNI processing if the SNI processing
changed s->ctx to differ from s->session_ctx.  To preserve the
property that any given accept is counted only once, make the
corresponding decrement to s->session_ctx.stats.sess_accept when
doing so.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4549)
2017-10-30 10:21:10 -05:00
Benjamin Kaduk
0e6161bcae Normalize on session_ctx for stats where possible
For client SSL objects and before any callbacks have had a chance
to be called, we can write the stats accesses using the session_ctx,
which makes sense given that these values are all prefixed with
"sess_".

For servers after a client_hello or servername callback has been
called, retain the existing behavior of modifying the statistics
for the current (non-session) context.  This has some value,
in that it allows the statistics to be viewed on a per-vhost level.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4549)
2017-10-30 10:21:10 -05:00
Benjamin Kaduk
1fcb4e4d52 Use atomics for SSL_CTX statistics
It is expected that SSL_CTX objects are shared across threads,
and as such we are responsible for ensuring coherent data accesses.
Aligned integer accesses ought to be atomic already on all supported
architectures, but we can be formally correct.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4549)
2017-10-30 10:18:09 -05:00
Paul Yang
7a908204ed Simplify the stack reservation
Use the newly introduced sk_TYPE_new_reserve API to simplify the
reservation of stack as creating it.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4592)
2017-10-26 14:34:35 -04:00
Bernd Edlinger
e6b10c344e Fix error handling in SSL_new
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4580)
2017-10-25 17:41:46 +02:00
KaoruToda
b2555168ec Various clean-ups
Add a check for NULL return in t1_lib.c.
    Since return type of ssl_cert_lookup_by_idx is pointer and unify coding
    style, I changed from zero to NULL in ssl_cert.c.

Remove unnecessary space for ++.

Fix incorrect condition
    Expression is always false because 'else if' condition matches previous
    condition.  SInce the next line of 'else if' condition has substituted
    TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2, the 'else if'
    condition should compare with NID_X9_62_characteristic_two_field.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4562)
2017-10-20 22:58:46 -04:00
KaoruToda
26a7d938c9 Remove parentheses of return.
Since return is inconsistent, I removed unnecessary parentheses and
unified them.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4541)
2017-10-18 16:05:06 +01:00
Benjamin Kaduk
2139145b72 Add missing RAND_DRBG locking
The drbg's lock must be held across calls to RAND_DRBG_generate()
to prevent simultaneous modification of internal state.

This was observed in practice with simultaneous SSL_new() calls attempting
to seed the (separate) per-SSL RAND_DRBG instances from the global
rand_drbg instance; this eventually led to simultaneous calls to
ctr_BCC_update() attempting to increment drbg->bltmp_pos for their
respective partial final block, violating the invariant that bltmp_pos < 16.
The AES operations performed in ctr_BCC_blocks() makes the race window
quite easy to trigger.  A value of bltmp_pos greater than 16 induces
catastrophic failure in ctr_BCC_final(), with subtraction overflowing
and leading to an attempt to memset() to zero a very large range,
which eventually reaches an unmapped page and segfaults.

Provide the needed locking in get_entropy_from_parent(), as well as
fixing a similar issue in RAND_priv_bytes().  There is also an
unlocked call to RAND_DRBG_generate() in ssl_randbytes(), but the
requisite serialization is already guaranteed by the requirements on
the application's usage of SSL objects, and no further locking is
needed for correct behavior.  In that case, leave a comment noting
the apparent discrepancy and the reason for its safety (at present).

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4328)
2017-10-18 08:39:20 -05:00
Dr. Matthias St. Pierre
c16de9d832 Fix reseeding issues of the public RAND_DRBG
Reseeding is handled very differently by the classic RAND_METHOD API
and the new RAND_DRBG api. These differences led to some problems when
the new RAND_DRBG was made the default OpenSSL RNG. In particular,
RAND_add() did not work as expected anymore. These issues are discussed
on the thread '[openssl-dev] Plea for a new public OpenSSL RNG API'
and in Pull Request #4328. This commit fixes the mentioned issues,
introducing the following changes:

- Replace the fixed size RAND_BYTES_BUFFER by a new RAND_POOL API which
  facilitates collecting entropy by the get_entropy() callback.
- Don't use RAND_poll()/RAND_add() for collecting entropy from the
  get_entropy() callback anymore. Instead, replace RAND_poll() by
  RAND_POOL_acquire_entropy().
- Add a new function rand_drbg_restart() which tries to get the DRBG
  in an instantiated state by all means, regardless of the current
  state (uninstantiated, error, ...) the DRBG is in. If the caller
  provides entropy or additional input, it will be used for reseeding.
- Restore the original documented behaviour of RAND_add() and RAND_poll()
  (namely to reseed the DRBG immediately) by a new implementation based
  on rand_drbg_restart().
- Add automatic error recovery from temporary failures of the entropy
  source to RAND_DRBG_generate() using the rand_drbg_restart() function.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4328)
2017-10-18 08:39:20 -05:00
Matt Caswell
beb30941d6 Tweak the comment regarding record version check with respect to TLSv1.3
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/4527)
2017-10-16 15:52:19 +01:00