Commit Graph

808 Commits

Author SHA1 Message Date
FdaSilvaYY 045a893091 ssl: fix possible ref counting fields use before init.
`strdup(propq)` failure is doing a `goto err;` from where `SSL_CTX_free` is called.
The possible call is made before reference and lock fields setup.

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/15052)
2021-05-01 18:23:21 +02:00
Todd Short feba11cf2e Handle set_alpn_protos inputs better.
It's possible to set an invalid protocol list that will be sent in a
ClientHello. This validates the inputs to make sure this does not
happen.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14815)
2021-04-13 12:29:37 +02:00
Nan Xiao 492bc359dc Fix typos in ssl_lib.c
CLA: trivial

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14751)
2021-04-01 15:48:57 +02:00
Matt Caswell 39a140597d Ensure buffer/length pairs are always in sync
Following on from CVE-2021-3449 which was caused by a non-zero length
associated with a NULL buffer, other buffer/length pairs are updated to
ensure that they too are always in sync.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
2021-03-25 09:48:08 +00:00
Rich Salz cd3f8c1b11 Always check CRYPTO_LOCK_{read,write}_lock
Some functions that lock things are void, so we just return early.

Also make ossl_namemap_empty return 0 on error.  Updated the docs, and added
some code to ossl_namemap_stored() to handle the failure, and updated the
tests to allow for failure.

Fixes: #14230

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14238)
2021-03-14 15:33:34 +10:00
Shane Lontis 3e6a0d5738 Reword repeated words.
A trivial PR to remove some commonly repeated words. It looks like this is
not the first PR to do this.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14420)
2021-03-09 16:25:45 +10:00
Matt Caswell 76cb077f81 Deprecate the libssl level SRP APIs
The low level SRP implementation has been deprecated with no replacement.
Therefore the libssl level APIs need to be similarly deprecated.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14132)
2021-02-12 08:47:32 +00:00
Matt Caswell 462f4f4bc0 Remove OPENSSL_NO_EC guards from libssl
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13916)
2021-02-05 15:22:43 +00:00
Matt Caswell ddf8f1ce63 Ensure default supported groups works even with no-ec and no-dh
The default supported groups code was disabled in the event of a build
with no-ec and no-dh. However now that providers can add there own
groups (which might not fit into either of these categories), this is
no longer appropriate.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13916)
2021-02-05 15:20:36 +00:00
Matt Caswell 5b64ce89b0 Remove OPENSSL_NO_DH guards from libssl
This removes man unnecessary OPENSSL_NO_DH guards from libssl. Now that
libssl is entirely using the EVP APIs and implementations can be plugged
in via providers it is no longer needed to disable DH at compile time in
libssl. Instead it should detect at runtime whether DH is available from
the loaded providers.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13916)
2021-02-05 15:20:36 +00:00
Richard Levitte 4333b89f50 Update copyright year
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13999)
2021-01-28 13:54:57 +01:00
Dr. David von Oheimb 0c3eb2793b TLS client: allow cert verify callback return -1 for SSL_ERROR_WANT_RETRY_VERIFY
The client-side cert verification callback function may not only return
as usual for success or 0 for failure, but also -1,
typically on failure verifying the server certificate.
This makes the handshake suspend and return control to the calling application
with SSL_ERROR_WANT_RETRY_VERIFY.
The app can for instance fetch further certificates or cert status information
needed for the verification.
Calling SSL_connect() again resumes the connection attempt
by retrying the server certificate verification step.
This process may even be repeated if need be.

The core implementation of the feature is in ssl/statem/statem_clnt.c,
splitting tls_process_server_certificate() into a preparation step
that just copies the certificates received from the server to s->session->peer_chain
(rather than having them in a local variable at first) and returns to the state machine,
and a post-processing step in tls_post_process_server_certificate() that can be repeated:
Try verifying the current contents of s->session->peer_chain basically as before,
but give the verification callback function the chance to pause connecting and
make the TLS state machine later call tls_post_process_server_certificate() again.
Otherwise processing continues as usual.

The documentation of the new feature is added to SSL_CTX_set_cert_verify_callback.pod
and SSL_want.pod.

This adds two tests:
* A generic test in test/helpers/handshake.c
  on the usability of the new server cert verification retry feature.
  It is triggered via test/ssl-tests/03-custom_verify.cnf.in (while the bulky auto-
  generated changes to test/ssl-tests/03-custom_verify.cnf can be basically ignored).
* A test in test/sslapitest.c that demonstrates the effectiveness of the approach
  for augmenting the cert chain provided by the server in between SSL_connect() calls.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13906)
2021-01-26 17:09:13 +01:00
Thomas De Schampheleire 6d4313f03e replace 'unsigned const char' with 'const unsigned char'
The openssl code base has only a few occurrences of 'unsigned const char'
(15 occurrences), compared to the more common 'const unsigned char' (4420
occurrences).

While the former is not illegal C, mixing the 'const' keyword (a 'type
qualifier') in between 'unsigned' and 'char' (both 'type specifiers') is a
bit odd.

The background for writing this patch is not to be pedantic, but because
the 'opmock' program (used to mock headers for unit tests) does not accept
the 'unsigned const char' construct. While this definitely is a bug in
opmock or one of its dependencies, openssl is the only piece of software we
are using in combination with opmock that has this construct.

CLA: trivial

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/13722)
2021-01-09 00:20:16 +02:00
Matt Caswell a68eee679a Move some libssl global variables into SSL_CTX
disabled_enc_mask et al were global. Now that cipher loading is done
individually for each SSL_CTX, based on the libctx configured for that
SSL_CTX this means that some things will be disabled for one SSL_CTX but
not for another. The global variables set up the potential for different
SSL_CTXs to trample on each other. We move these variables into the SSL_CTX
structure.

Fixes #12040

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13465)
2020-11-23 09:31:23 +00:00
Richard Levitte 276d6c687a SSL: Change SSLerr() to ERR_raise()
This was probably due to a merge

Fixes #13449

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
(Merged from https://github.com/openssl/openssl/pull/13450)
2020-11-20 09:39:11 +01:00
Matt Caswell 13c453728c Only disabled what we need to in a no-dh build
no-dh disables the low level API for DH. However, since we're now using
the high level EVP API in most places we don't need to disable quite so
much.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13368)
2020-11-18 14:14:52 +00:00
Matt Caswell 163f6dc1f7 Implement a replacement for SSL_set_tmp_dh()
The old function took a DH as a parameter. In the new version we pass
an EVP_PKEY instead. Similarly for the SSL_CTX version of this function.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13368)
2020-11-18 14:14:52 +00:00
Matt Caswell 1b2b475517 Deprecate SSL_CTRL_SET_TMP_DH and other related ctrls
These ctrls pass around a DH object which is now deprecated, so we
deprecate the ctrls themselves.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13368)
2020-11-18 14:14:51 +00:00
Richard Levitte c48ffbcca1 SSL: refactor all SSLfatal() calls
Since SSLfatal() doesn't take a function code any more, we drop that
argument everywhere.  Also, we convert all combinations of SSLfatal()
and ERR_add_data() to an SSLfatal_data() call.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13316)
2020-11-11 12:12:23 +01:00
Richard Levitte 6849b73ccc Convert all {NAME}err() in ssl/ to their corresponding ERR_raise() call
This was done using util/err-to-raise

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13316)
2020-11-11 12:12:11 +01:00
Matt Caswell 301fcb2843 Concentrate deprecated libssl API usage in one file
We create a new file ssl/tls_depr.c to contain functions that need to call
deprecated APIs in libssl. This enables us to remove
OPENSSL_SUPPRESS_DEPRECATED from a number of other libssl files.

The deprecated API usage is either related to ENGINEs and is needed to
continue to support applications that use such ENGINEs. Or they are needed
to support some deprecated public libssl APIs.

One other file remains in libssl that still uses deprecated APIs: s3_cbc.c
This is needed to support the deprecated SSLv3.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13135)
2020-10-16 14:47:21 +01:00
Dr. Matthias St. Pierre b425001010 Rename OPENSSL_CTX prefix to OSSL_LIB_CTX
Many of the new types introduced by OpenSSL 3.0 have an OSSL_ prefix,
e.g., OSSL_CALLBACK, OSSL_PARAM, OSSL_ALGORITHM, OSSL_SERIALIZER.

The OPENSSL_CTX type stands out a little by using a different prefix.
For consistency reasons, this type is renamed to OSSL_LIB_CTX.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12621)
2020-10-15 11:59:53 +01:00
Ikko Ashimine 9f7505ab6a Fixed typo in ssl_lib.c
orignal -> original

CLA: trivial

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/13111)
2020-10-12 17:06:22 -07:00
Matt Caswell d8652be06e Run the withlibctx.pl script
Automatically rename all instances of _with_libctx() to _ex() as per
our coding style.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12970)
2020-10-01 09:25:20 +01:00
Matt Caswell 9d01ac71a0 Fix safestack issues in ct.h
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12781)
2020-09-13 11:10:41 +01:00
Matt Caswell fd3ed85c67 Fix safestack issues in ocsp.h
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12781)
2020-09-13 11:10:41 +01:00
Matt Caswell e6623cfbff Fix safestack issues in x509.h
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12781)
2020-09-13 11:09:45 +01:00
Matt Caswell 6ac1cd10ba Fix safestack issues in ssl.h
We fix 3 problems with safestack:
- Including an openssl header file without linking against libcrypto
  can cause compilation failures (even if the app does not otherwise need
  to link against libcrypto). See issue #8102
- Recent changes means that applications in no-deprecated builds will need
  to include additional macro calls in the source code for all stacks that
  they need to use - which is an API break. This changes avoids that
  necessity.
- It is not possible to write code using stacks that works in both a
  no-deprecated and a normal build of OpenSSL. See issue #12707.

Fixes #12707
Contains a partial fix for #8102. A similar PR will be needed for hash to
fully fix.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12781)
2020-09-13 11:09:45 +01:00
Randall S. Becker 08073700cc NonStop port updates for 3.0.0.
HPE NonStop Port Changes for 3.0.0  Includes unthreaded, PUT, and SPT for OSS.

The port changes include wrapping where necessary for FLOSS and
appropriate configuration changes to support that. Two tests
are excluded as being inappropriate for the platform.

The changes are:
* Added /usr/local/include to nonstop-nsx_spt_floss to load floss.h
* Added SPT Floss variant for NonStop
* Wrapped FLOSS definitions in OPENSSL_TANDEM_FLOSS to allow selective enablement.
* SPT build configuration for NonStop
* Skip tests not relevant for NonStop
* PUT configuration changes required for NonStop platforms
* Configurations/50-nonstop.conf: updates for TNS/X platform.
* FLOSS instrumentation for HPE NonStop TNS/X and TNS/E platforms.
* Configurations/50-nonstop.conf: modifications for non-PUT TNS/E platform b
* Fix use of DELAY in ssltestlib.c for HPNS.
* Fixed commit merge issues and added floss to http_server.c

CLA: Permission is granted by the author to the OpenSSL team to use these modifications.
Fixes #5087.

Signed-off-by: Randall S. Becker <rsbecker@nexbridge.com>

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12800)
2020-09-12 20:32:11 +02:00
Shane Lontis f2bfc53b02 Fix coverity CID #1465795 - Incorrect free deallocator used in SSL_add1_host()
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/12628)
2020-08-24 11:19:28 +10:00
Tomas Mraz dffeec1c10 Avoid segfault in SSL_export_keying_material if there is no session
Fixes #12588

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12594)
2020-08-13 10:17:10 +02:00
Benjamin Kaduk dd0164e756 Mark SSL_CTX_set_ssl_version() as deprecated in 3.0
Also, document its unusual semantics of resetting the
cipher list (but preserving other configuration).

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/7274)
2020-08-12 18:02:42 -07:00
Pauli 7d615e2178 rand_drbg: remove RAND_DRBG.
The RAND_DRBG API did not fit well into the new provider concept as
implemented by EVP_RAND and EVP_RAND_CTX. The main reason is that the
RAND_DRBG API is a mixture of 'front end' and 'back end' API calls
and some of its API calls are rather low-level. This holds in particular
for the callback mechanism (RAND_DRBG_set_callbacks()) and the RAND_DRBG
type changing mechanism (RAND_DRBG_set()).

Adding a compatibility layer to continue supporting the RAND_DRBG API as
a legacy API for a regular deprecation period turned out to come at the
price of complicating the new provider API unnecessarily. Since the
RAND_DRBG API exists only since version 1.1.1, it was decided by the OMC
to drop it entirely.

Other related changes:

Use RNG instead of DRBG in EVP_RAND documentation.  The documentation was
using DRBG in places where it should have been RNG or CSRNG.

Move the RAND_DRBG(7) documentation to EVP_RAND(7).

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/12509)
2020-08-07 14:16:47 +10:00
David Woodhouse 892a9e4c99 Disallow setting more than one IP address with SSL_add1_host()
The X509_VERIFY_PARAM can only take a single IP address, although it can
have multiple hostnames. When SSL_add1_host() is given an IP address,
don't accept it if there is already one configured.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9201)
2020-08-03 17:15:36 +02:00
David Woodhouse c832840e89 Make SSL_set1_host() and SSL_add1_host() take IP addresses
There is a slight mismatch here because X509_VERIFY_PARAM copes only
with a single IP address, and doesn't let it be cleared once it's set.
But this fixes up the major use case, making things easier for users to
get it right.

The sconnect demo now works for Legacy IP literals; for IPv6 it needs to
fix up the way it tries to split the host:port string, which will happen
in a subsequent patch.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9201)
2020-08-03 17:15:35 +02:00
Shane Lontis 6725682d77 Add X509 related libctx changes.
- In order to not add many X509_XXXX_with_libctx() functions the libctx and propq may be stored in the X509 object via a call to X509_new_with_libctx().
- Loading via PEM_read_bio_X509() or d2i_X509() should pass in a created cert using X509_new_with_libctx().
- Renamed some XXXX_ex() to XXX_with_libctx() for X509 API's.
- Removed the extra parameters in check_purpose..
- X509_digest() has been modified so that it expects a const EVP_MD object() and then internally it does the fetch when it needs to (via ASN1_item_digest_with_libctx()).
- Added API's that set the libctx when they load such as X509_STORE_new_with_libctx() so that the cert chains can be verified.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12153)
2020-07-24 22:53:27 +10:00
Pauli 92f8603537 deprecate engines in SSL
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12226)
2020-07-16 09:12:27 +02:00
Todd Short 8c2bfd2512 Add SSL_get[01]_peer_certificate()
Deprecate SSL_get_peer_certificte() and replace with
SSL_get1_peer_certificate().
Add SSL_get0_peer_certificate.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/8730)
2020-07-16 09:08:21 +02:00
Matt Caswell ec27e619e8 Move MAC removal responsibility to the various protocol "enc" functions
For CBC ciphersuites using Mac-then-encrypt we have to be careful about
removing the MAC from the record in constant time. Currently that happens
immediately before MAC verification. Instead we move this responsibility
to the various protocol "enc" functions so that MAC removal is handled at
the same time as padding removal.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12288)
2020-07-06 09:26:00 +01:00
Richard Levitte fa7a807435 SSL: fix misuse of ERR_LIB_SYS
Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
(Merged from https://github.com/openssl/openssl/pull/12343)
2020-07-05 21:13:42 +02:00
Miłosz Kaniewski 94941cada2 Free pre_proc_exts in SSL_free()
Usually it will be freed in tls_early_post_process_client_hello().
However if a ClientHello callback will be used and will return
SSL_CLIENT_HELLO_RETRY then tls_early_post_process_client_hello()
may never come to the point where pre_proc_exts is freed.

Fixes #12194

CLA: trivial

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/12330)
2020-07-01 17:25:48 -07:00
Matt Caswell 7cccecc0b6 Don't attempt to duplicate the BIO state in SSL_dup
SSL_dup attempted to duplicate the BIO state if the source SSL had BIOs
configured for it. This did not work.

Firstly the SSL_dup code was passing a BIO ** as the destination
argument for BIO_dup_state. However BIO_dup_state expects a BIO * for that
parameter. Any attempt to use this will either (1) fail silently, (2) crash
or fail in some other strange way.

Secondly many BIOs do not implement the BIO_CTRL_DUP ctrl required to make
this work.

Thirdly, if rbio == wbio in the original SSL object, then an attempt is made
to up-ref the BIO in the new SSL object - even though it hasn't been set
yet and is NULL. This results in a crash.

This appears to have been broken for a very long time with at least some of
the problems described above coming from SSLeay. The simplest approach is
to just remove this capability from the function.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/12180)
2020-06-23 12:46:47 +01:00
Matt Caswell f12dd99170 Ensure that SSL_dup copies the min/max protocol version
With thanks to Rebekah Johnson for reporting this issue.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/12180)
2020-06-23 12:46:47 +01:00
Matt Caswell 260009d877 Update the various SSL group getting and setting functions
A number of these functions returned a NID or an array of NIDs for the
groups. Now that groups can come from the providers we do not necessarily
know the NID. Therefore we need to handle this in a clean way.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11914)
2020-06-19 10:19:31 +01:00
Matt Caswell 9d2d857f13 Modify libssl to discover supported groups based on available providers
Now that we have added the TLS-GROUP capability to the default provider
we can use that to discover the supported group list based on the loaded
providers.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11914)
2020-06-19 10:19:31 +01:00
Vadim Fedorenko a6d36303e9 TLSv1.3: additional checks in SSL_set_record_padding_callback
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11589)
2020-06-08 11:13:53 +01:00
Matt Caswell 263ff2c9d4 Check that Signature Algorithms are available before using them
We should confirm that Signature Algorithms are actually available
through the loaded providers before we offer or select them.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11834)
2020-06-05 10:31:06 +01:00
Tim Hudson c7f837cfcc undeprecate SSL_CTX_load_verify_locations and X509_STORE_load_locations
The underlying functions remain and these are widely used.
This undoes the deprecation part of PR8442

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12001)
2020-06-01 19:52:23 +10:00
Dmitry Belyavskiy 5a5530a29a New Russian TLS 1.2 implementation
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11442)
2020-05-19 13:02:43 +03:00
Benjamin Kaduk 35774d5594 Fix up whitespace nits introduced by PR #11416
Expand a couple literal tabs, and de-indent the body of a function.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11728)
2020-05-05 17:21:51 -07:00
Benjamin Kaduk 3bfacb5fd4 Add SSL_new_session_ticket() API
This API requests that the TLS stack generate a (TLS 1.3)
NewSessionTicket message the next time it is safe to do so (i.e., we do
not have other data pending write, which could be mid-record).  For
efficiency, defer actually generating/writing the ticket until there
is other data to write, to avoid producing server-to-client traffic when
not needed.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11416)
2020-05-01 15:10:11 -07:00
Rich Salz 852c2ed260 In OpenSSL builds, declare STACK for datatypes ...
... and only *define* them in the source files that need them.
Use DEFINE_OR_DECLARE which is set appropriately for internal builds
and not non-deprecated builds.

Deprecate stack-of-block

Better documentation

Move some ASN1 struct typedefs to types.h

Update ParseC to handle this.  Most of all, ParseC needed to be more
consistent.  The handlers are "recursive", in so far that they are called
again and again until they terminate, which depends entirely on what the
"massager" returns.  There's a comment at the beginning of ParseC that
explains how that works. {Richard Levtte}

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10669)
2020-04-24 16:42:46 +02:00
Matt Caswell 33388b44b6 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11616)
2020-04-23 13:55:52 +01:00
Matt Caswell 1a37ee9402 Ensure libssl uses the new library context aware CT code
Ensure that when we create a CTLOG_STORE we use the new library context
aware function.

Also ensure that when we create a CT_POLICY_EVAL_CTX we associate it with
the library context.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/11483)
2020-04-09 14:51:48 +01:00
Matt Caswell 5fcb97c61e Ignore some fetch failures
Some fetch failurs are ok and should be ignored.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11405)
2020-03-27 11:12:27 +00:00
Shane Lontis 075b1f2f42 Fix coverity issues
CID : 1458169 RESOURCE LEAK ffc_params_generate.c - False positive, but addressed another Leak in adjacent code
CID : 1458171 UNCHECKED RET apps/pkeyutl.c
CID : 1458173 DEAD CODE ffc_params_generate.c
CID : 1458174 RESOURCE LEAK ssl_lib.c

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/11048)
2020-02-14 07:28:46 +10:00
Matt Caswell 0618b62ca2 Fix a mem leak in libssl
Make sure we free up any ENGINE references after we have finished using
them.

Fixes #11064

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11070)
2020-02-13 14:25:32 +00:00
Matt Caswell 709b5e8a3e Fix no-engine
We don't need to check if an engine has a cipher/digest in a no-engine
build.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/11031)
2020-02-07 23:27:58 +00:00
Matt Caswell c8f6c28a93 Explicitly fetch ciphers and digests in libssl
We modify libssl to use explicitly fetched ciphers, digests and other
algorithms as required based on the configured library context and
property query string for the SSL_CTX that is being used.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10854)
2020-02-06 11:59:07 +00:00
Matt Caswell 7955c1f16e Fix SSL_get_servername() and SNI behaviour
The SNI behaviour for TLSv1.3 and the behaviour of SSL_get_servername()
was not quite right, and not entirely consistent with the RFC.

The TLSv1.3 RFC explicitly says that SNI is negotiated on each handshake
and the server is not required to associate it with the session. This was
not quite reflected in the code so we fix that.

Additionally there were some additional checks around early_data checking
that the SNI between the original session and this session were
consistent. In fact the RFC does not require any such checks, so they are
removed.

Finally the behaviour of SSL_get_servername() was not quite right. The
behaviour was not consistent between resumption and normal handshakes,
and also not quite consistent with historical behaviour. We clarify the
behaviour in various scenarios and also attempt to make it match historical
behaviour as closely as possible.

Fixes #8822

Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/10018)
2020-01-30 16:01:25 +00:00
Matt Caswell 8f21260b09 Make sure we use RAND_bytes_ex and RAND_priv_bytes_ex in libssl
Now that libssl knows about libctx we should use it wherever we generate
a random number.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10927)
2020-01-24 15:12:56 +00:00
Matt Caswell ba18627e4a Introduce SSL_CTX_new_with_libex()
We add the ability to specify an OPENSSL_CTX (which may be NULL for the
default context) and a property query string for use during algorithm
fetch operations.

For example, in this way one SSL_CTX could be used the default provider,
and another one could be used with the FIPS provider.

At this stage we don't use these values. That will come later.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10866)
2020-01-22 10:47:12 +00:00
Richard Levitte 00db8c60aa Update source files for pre-3.0 deprecation
Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10364)
2019-11-07 11:37:25 +01:00
Richard Levitte 6dcb100f89 X509_LOOKUP_store: new X509_LOOKUP_METHOD that works by OSSL_STORE URI
This is a wrapper around OSSL_STORE.

This also adds necessary support functions:

- X509_STORE_load_file
- X509_STORE_load_path
- X509_STORE_load_store
- SSL_add_store_cert_subjects_to_stack
- SSL_CTX_set_default_verify_store
- SSL_CTX_load_verify_file
- SSL_CTX_load_verify_dir
- SSL_CTX_load_verify_store

and deprecates X509_STORE_load_locations and SSL_CTX_load_verify_locations,
as they aren't extensible.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8442)
2019-11-03 18:38:23 +01:00
John Baldwin 712c094293 Simplify NO_KTLS path in SSL_sendfile.
Avoid tripping over errno values from previous system calls in the
thread and just hardcode the specific error.  BIO_get_ktls_send()
should never be true in the NO_KTLS path, so the #ifdef could be
moved even higher up to assume that error path in the NO_KTLS case
instead.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10045)
2019-10-31 10:24:32 +00:00
raja-ashok 187753e09c Fix leak with no-ec config
Reviewed-by: Paul Yang <kaishen.yy@antfin.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10194)
2019-10-21 09:33:34 +10:00
Rich Salz 12a765a523 Explicitly test against NULL; do not use !p or similar
Also added blanks lines after declarations in a couple of places.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9916)
2019-10-09 21:32:15 +02:00
Dr. Matthias St. Pierre 706457b7bd Reorganize local header files
Apart from public and internal header files, there is a third type called
local header files, which are located next to source files in the source
directory. Currently, they have different suffixes like

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

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

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9333)
2019-09-28 20:26:35 +02:00
Rich Salz ff988500c2 Replace FUNCerr with ERR_raise_data
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9496)
2019-08-02 11:41:54 +02:00
Rich Salz 46160e6fb9 Deprecate SYSerr, add new FUNCerr macro
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9072)
2019-07-22 16:24:56 +02:00
Rich Salz 56c3a135b2 Add ERR_put_func_error, and use it.
Change SYSerr to have the function name; remove SYS_F_xxx defines
Add a test and documentation.
Use get_last_socket_err, which removes some ifdef's in OpenSSL code.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9072)
2019-07-22 16:24:56 +02:00
Todd Short fe9edc9d39 Fix SSL_CTX_set_session_id_context() docs
Also, use define rather than sizeof

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9377)
2019-07-16 13:57:38 +01:00
Benjamin Kaduk 29948ac80c Move 'shared_sigalgs' from cert_st to ssl_st
It was only ever in cert_st because ssl_st was a public structure
and could not be modified without breaking the API.  However, both
structures are now opaque, and thus we can freely change their layout
without breaking applications.  In this case, keeping the shared
sigalgs in the SSL object prevents complications wherein they would
inadvertently get cleared during SSL_set_SSL_CTX() (e.g., as run
during a cert_cb).

Fixes #9099

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9157)
2019-06-26 12:20:55 -05:00
Matt Caswell cd0fb43cbe Following the previous 2 commits also move ecpointformats out of session
The previous 2 commits moved supported groups and ciphers out of the
session object to avoid race conditions. We now also move ecpointformats
for consistency. There does not seem to be a race condition with access
to this data since it is only ever set in a non-resumption handshake.
However, there is no reason for it to be in the session.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9162)
2019-06-18 13:36:25 +01:00
Matt Caswell eee2a6a718 Fix a race condition in ciphers handling
Similarly to the previous commit we were storing the peer offered list
of ciphers in the session. In practice there is no need for this
information to be avilable from one resumption to the next since this
list is specific to a particular handshake. Since the session object is
supposed to be immutable we should not be updating it once we have decided
to resume. The solution is to remove the session list out of the session
object.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9162)
2019-06-18 13:36:25 +01:00
Matt Caswell 45436e611b Fix a race condition in supported groups handling
In TLSv1.3 the supported groups can be negotiated each time a handshake
occurs, regardless of whether we are resuming or not. We should not store
the supported groups information in the session because session objects
can be shared between multiple threads and we can end up with race
conditions. For most users this won't be seen because, by default, we
use stateless tickets in TLSv1.3 which don't get shared. However if you
use SSL_OP_NO_TICKET (to get stateful tickets in TLSv1.3) then this can
happen.

The answer is to move the supported the supported group information into
the SSL object instead.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9162)
2019-06-18 13:36:25 +01:00
Matt Caswell dbc6268f68 Allow TLSv1.3 in a no-ec build
Now that we have TLSv1.3 FFDHE support there is no reason why we should
not allow TLSv1.3 to be used in a no-ec build. This commit enables that
to happen.

It also fixes no-ec which was previously broken.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9156)
2019-06-17 10:57:19 +01:00
Todd Short 5d12051167 Change cipher default strings to a function
Making the default cipher strings a function gives the library more
control over the defaults. Potentially allowing a change in the
future as ciphers become deprecated or dangerous.
Also allows third party distributors to change the defaults for their
installations.

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8686)
2019-06-11 09:44:26 +01:00
Arne Schwabe c04b66b18d Change SSL parameter SSL_session_reused const
This function only returns a status and does not modify the parameter.
Since similar function are already taking const parameters, also
change this function to have a const parameter.

Fixes #8934

CLA: trivial
Signed-off-by: Arne Schwabe <arne@rfc2549.org>

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8945)
2019-05-21 09:58:50 +10:00
Boris Pismenny 7c3a7561b5 ssl: Add SSL_sendfile
This commit adds the SSL_sendfile call, which allows KTLS sockets to
transmit file using zero-copy semantics.

Signed-off-by: Boris Pismenny <borisp@mellanox.com>

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8727)
2019-05-07 14:24:16 +01:00
Todd Short 555cbb328e Collapse ssl3_state_st (s3) into ssl_st
With the removal of SSLv2, the s3 structure is always allocated, so
there is little point in having it be an allocated pointer. Collapse
the ssl3_state_st structure into ssl_st and fixup any references.

This should be faster than going through an indirection and due to
fewer allocations, but I'm not seeing any significant performance
improvement; it seems to be within the margin of error in timing.

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7888)
2019-04-29 17:26:09 +01:00
dyrock 6fda11ae5a Check if num is 0 before trying to malloc memory. Otherwise for client hellos without extensions SSL_client_hello_get1_extensions_present will return MALLOC_FAILURE.
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8756)
2019-04-19 09:51:48 +01:00
Richard Levitte 77359d22c9 Adapt CIPHER_DEBUG to the new generic trace API
Co-authored-by: Dr. Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8198)
2019-03-06 11:15:13 +01:00
Sam Roberts 3c83c5ba4f Ignore cipher suites when setting cipher list
set_cipher_list() sets TLSv1.2 (and below) ciphers, and its success or
failure should not depend on whether set_ciphersuites() has been used to
setup TLSv1.3 ciphers.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7759)
2019-02-14 13:54:56 +00:00
Sam Roberts 3499327bad Make some simple getters take const SSL/SSL_CTX
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8145)
2019-02-05 13:51:08 +00:00
Ping Yu 9f5a87fd66 add an additional async notification communication method based on callback
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Signed-off-by: Ping Yu <ping.yu@intel.com>
Signed-off-by: Steven Linsell <stevenx.linsell@intel.com>

(Merged from https://github.com/openssl/openssl/pull/7573)
2019-01-27 12:27:17 +00:00
Boris Pismenny 50ec750567 ssl: Linux TLS Tx Offload
This patch adds support for the Linux TLS Tx socket option.
If the socket option is successful, then the data-path of the TCP socket
is implemented by the kernel.
We choose to set this option at the earliest - just after CCS is complete.

Signed-off-by: Boris Pismenny <borisp@mellanox.com>

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5253)
2018-12-07 11:25:45 +00:00
Richard Levitte 2c18d164f5 Following the license change, modify the boilerplates in ssl/
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7768)
2018-12-06 14:20:59 +01:00
Richard Levitte fcd2d5a612 Refactor the computation of API version limits
Previously, the API version limit was indicated with a numeric version
number.  This was "natural" in the pre-3.0.0 because the version was
this simple number.

With 3.0.0, the version is divided into three separate numbers, and
it's only the major number that counts, but we still need to be able
to support pre-3.0.0 version limits.

Therefore, we allow OPENSSL_API_COMPAT to be defined with a pre-3.0.0
style numeric version number or with a simple major number, i.e. can
be defined like this for any application:

    -D OPENSSL_API_COMPAT=0x10100000L
    -D OPENSSL_API_COMPAT=3

Since the pre-3.0.0 numerical version numbers are high, it's easy to
distinguish between a simple major number and a pre-3.0.0 numerical
version number and to thereby support both forms at the same time.

Internally, we define the following macros depending on the value of
OPENSSL_API_COMPAT:

    OPENSSL_API_0_9_8
    OPENSSL_API_1_0_0
    OPENSSL_API_1_1_0
    OPENSSL_API_3

They indicate that functions marked for deprecation in the
corresponding major release shall not be built if defined.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7724)
2018-12-06 12:24:48 +01:00
Matt Caswell 9873297900 Separate ca_names handling for client and server
SSL(_CTX)?_set_client_CA_list() was a server side only function in 1.1.0.
If it was called on the client side then it was ignored. In 1.1.1 it now
makes sense to have a CA list defined for both client and server (the
client now sends it the the TLSv1.3 certificate_authorities extension).
Unfortunately some applications were using the same SSL_CTX for both
clients and servers and this resulted in some client ClientHellos being
excessively large due to the number of certificate authorities being sent.

This commit seperates out the CA list updated by
SSL(_CTX)?_set_client_CA_list() and the more generic
SSL(_CTX)?_set0_CA_list(). This means that SSL(_CTX)?_set_client_CA_list()
still has no effect on the client side. If both CA lists are set then
SSL(_CTX)?_set_client_CA_list() takes priority.

Fixes #7411

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7503)
2018-11-12 14:29:02 +00:00
Pauli 2087028612 Fix return formatting.
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7564)
2018-11-06 07:06:56 +10:00
Pauli e931f370aa Cleanse the key log buffer.
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7564)
2018-11-06 07:06:56 +10:00
Richard Levitte 18958cefd8 Remove SSL_version_str
I was never exported in our shared libraries and no one noticed, and
we don't seem to use it ourselves, so clean it away.

In all likelyhood, this is a remain from the 90's, when it was in
fashion to litter library modules with these kinds of strings.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7340)
2018-10-03 22:15:15 +02:00
Benjamin Kaduk 2340ed277b Reset TLS 1.3 ciphers in SSL_CTX_set_ssl_version()
Historically SSL_CTX_set_ssl_version() has reset the cipher list
to the default.  Splitting TLS 1.3 ciphers to be tracked separately
caused a behavior change, in that TLS 1.3 cipher configuration was
preserved across calls to SSL_CTX_set_ssl_version().  To restore commensurate
behavior with the historical behavior, set the ciphersuites to the default as
well as setting the cipher list to the default.

Closes: #7226

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7270)
2018-09-19 16:44:30 -05:00
Matt Caswell f01344cb5c Do not reset SNI data in SSL_do_handshake()
PR #3783 introduce coded to reset the server side SNI state in
SSL_do_handshake() to ensure any erroneous config time SNI changes are
cleared. Unfortunately SSL_do_handshake() can be called mid-handshake
multiple times so this is the wrong place to do this and can mean that
any SNI data is cleared later on in the handshake too.

Therefore move the code to a more appropriate place.

Fixes #7014

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/7149)
2018-09-07 18:24:59 +01:00
Ben Kaduk 328a0547ad Simplify SSL_get_servername() to avoid session references
Ideally, SSL_get_servername() would do exactly as it is documented
and return exactly what the client sent (i.e., what we currently
are stashing in the SSL's ext.hostname), without needing to refer
to an SSL_SESSION object.  For historical reasons, including the
parsed SNI value from the ClientHello originally being stored in the
SSL_SESSION's ext.hostname field, we have had references to the
SSL_SESSION in this function.  We cannot fully excise them due to
the interaction between user-supplied callbacks and TLS 1.2 resumption
flows, where we call all callbacks but the client did not supply an
SNI value.  Existing callbacks expect to receive a valid SNI value
in this case, so we must fake one up from the resumed session in
order to avoid breakage.

Otherwise, greatly simplify the implementation and just return the
value in the SSL, as sent by the client.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7115)
2018-09-07 15:21:27 +01:00
Matt Caswell e97be71804 Add support for SSL_CTX_set_post_handshake_auth()
We already have SSL_set_post_handshake_auth(). This just adds the SSL_CTX
equivalent.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6938)
2018-08-20 15:14:01 +01:00
Matt Caswell 32097b33bd Change Post Handshake auth so that it is opt-in
Having post handshake auth automatically switched on breaks some
applications written for TLSv1.2. This changes things so that an explicit
function call is required for a client to indicate support for
post-handshake auth.

Fixes #6933.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6938)
2018-08-20 15:14:01 +01:00
Andy Polyakov 9ef9088c15 ssl/*: switch to switch to Thread-Sanitizer-friendly primitives.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6786)
2018-08-07 09:08:23 +02:00
Benjamin Kaduk a75be9fd34 Improve backwards compat for SSL_get_servername()
Commit 1c4aa31d79 changed how we process
and store SNI information during the handshake, so that a hostname is
only saved in the SSL_SESSION structure if that SNI value has actually
been negotiated.  SSL_get_servername() was adjusted to match, with a new
conditional being added to handle the case when the handshake processing
is ongoing, and a different location should be consulted for the offered
SNI value.  This was done in an attempt to preserve the historical
behavior of SSL_get_servername(), a function whose behavior only mostly
matches its documentation, and whose documentation is both lacking and
does not necessarily reflect the actual desired behavior for such an
API.  Unfortunately, sweeping changes that would bring more sanity to
this space are not possible until OpenSSL 1.2.0, for ABI compatibility
reasons, so we must attempt to maintain the existing behavior to the
extent possible.

The above-mentioned commit did not take into account the behavior
of SSL_get_servername() during resumption handshakes for TLS 1.2 and
prior, where no SNI negotiation is performed.  In that case we would
not properly parse the incoming SNI and erroneously return NULL as
the servername, when instead the logical session is associated with
the SNI value cached in the SSL_SESSION.  (Note that in some cases an
SNI callback may not need to do anything in a TLS 1.2 or prior resumption
flow, but we are calling the callbacks and did not provide any guidance
that they should no-op if the connection is being resumed, so we must
handle this case in a usable fashion.)  Update our behavior accordingly to
return the session's cached value during the handshake, when resuming.
This fixes the boringssl tests.

[extended tests]

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/6792)
2018-07-26 15:06:53 -05:00