Fix a memory leak on an error path

A leak of an SSL_SESSION object can occur when decoding a psk extension on
an error path when using TLSv1.3

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2843)

Ensure we don't call memcpy with a NULL pointer

Commit d5aa14dd simplified the bn_expand_internal() and BN_copy() functions.
Unfortunately it also removed some checks which are still required,
otherwise we call memcpy passing in NULL which is not allowed.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2836)

Update and add test

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2840)

Set specific error is we have no valid signature algorithms set

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2840)

Signature algorithm enhancement.

Change tls12_sigalg_allowed() so it is passed a SIGALG_LOOKUP parameter,
this avoids multiple lookups.

When we copy signature algorithms return an error if no valid TLS message
signing algorithm is present. For TLS 1.3 this means we need at least one
signature algorithm other than RSA PKCS#1 or SHA1 both of which can only be
used to sign certificates and not TLS messages.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2840)

Disallow zero length signature algorithms

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2840)

Don't allow DSA for TLS 1.3

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2840)

use OSSLzu instead of lu format for size_t display

CLA: trivial

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2660)

Reset executable bits on files where not needed.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2835)

Update the cipher(1) documentation to explicitly state that the RSA cipher
string means the same a kRSA.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2821)

sh_malloc & sh_free prototype change to match POSIX

CLA: trivial

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2823)

Silence some more clang warnings

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2832)

Silence some clang warnings

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2831)

More early data documentation updates following feedback

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Update the API documentation for the latest early data changes

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Update early data API for writing to unauthenticated clients

Change the early data API so that the server must use
SSL_write_early_data() to write to an unauthenticated client.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Rename SSL_write_early() to SSL_write_early_data()

This is for consistency with the rest of the API where all the functions
are called *early_data*.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Rename SSL_read_early() to SSL_read_early_data()

This is for consistency with the rest of the API where all the functions
are called *early_data*.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Updates to the early data documentation

Following on from the latest API changes.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Updates to s_server and s_client for the latest early_data API changes

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Make SSL_write_early_finish() an internal only function

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Add early_data tests

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Various fixes required to allow SSL_write/SSL_read during early data

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Enable the server to call SSL_write() without stopping the ability to call SSL_read_early()

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Enable the client to call SSL_read() without stopping the ability to call SSL_write_early()

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Introduce a new early_data state in the state machine

Also simplifies the state machine a bit.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Improve the early data sanity check in SSL_do_handshake()

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Add documentation for the new s_client and s_server early_data options

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Tighten sanity checks when calling early data functions

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Add documentation for the early data functions

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Make SSL_get_early_data_status() take a const

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Make SSL_get_max_early_data() and SSL_CTX_get_max_early_data() take a const

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Add a SSL_SESSION_get_max_early_data() function

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Don't attempt to write more early_data than we know the server will accept

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Only accept early_data if the negotiated ALPN is the same

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Skip early_data if appropriate after a HelloRetryRequest

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Don't accept early_data if we are going to issue a HelloRetryRequest

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Add extra validation parsing the server-to-client early_data extension

Check that we actually resumed the session, and that we selected the first
identity.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Remove some TLSv1.3 TODOs that are no longer relevant

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Validate the ticket age for resumed sessions

If the ticket age calcualtions do not check out then we must not accept
early data (it could be a replay).

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Ensure the max_early_data option to s_server can be 0

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Provide a default value for max_early_data

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Check max_early_data against the amount of early data we actually receive

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Make sure we reset the read sequence when skipping records

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Disallow handshake messages in the middle of early_data

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Fix seg fault when sending early_data using CCM ciphersuites

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Get s_client to report on whether early data was accepted or not

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Implement client side parsing of the early_data extension

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Add a "-early_data" option to s_server

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Fix changing of the cipher state when dealing with early data

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Construct the server side early_data extension

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Provide an SSL_read_early() function for reading early data

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Change the cipher state when sending early data

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Implement the early data changes required in tls13_change_cipher_state()

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Add an option to s_client to send early_data

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Parse the early_data extension

We also skip any early_data that subsequently gets sent. Later commits will
process it if we can.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Construct the early_data extension

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Provide functions to write early data

We provide SSL_write_early() which *must* be called first on a connection
(prior to any other IO function including SSL_connect()/SSL_do_handshake()).
Also SSL_write_early_finish() which signals the end of early data.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Parse the ticket_early_data_info extension

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Teach SSL_trace() about the early_data_info extension

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Add a -max_early_data option to s_server

Allows you to set the number of bytes that can be sent as early data

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Construct the ticket_early_data_info extension

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2737)

Remove ref to err(7), update copyright.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2825)

-precert doesn't work when configured no-ct, don't try to test it then

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2827)

Fix the skip numbers in 80-test_ca.t

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2827)

Use the built in boolean type for CompressionExpected

Don't create a custom boolean type for parsing CompressionExpected. Use
the existing one instead.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2814)

Add compression tests

Check whether we negotiate compression in various scenarios.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2814)

Fix a compression bug

do_ssl3_write() was crashing when compression was enabled. We calculate
the maximum length that a record will be after compression and reserve
those bytes in the WPACKET. Unfortunately we were adding the maximum
compression overhead onto the wrong variable resulting in a corrupted
record.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2814)

Ensure that we never select compression in TLSv1.3

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2814)

Add LDAP support (RFC 4511) to s_client ("-starttls ldap")

Based on initial patch by Alex Bergmann <alex@linlab.net> and new function
ldap_ExtendedResponse_parse() by Andy Polyakov <appro@openssl.org>. Thanks
very much to both.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2293)

Configurations/10-main.conf: omit redundant -lresolv from Solaris configs.

GH#2816

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

bio/b_addr.c: omit private hstrerror.

Private hstrerror was introduced to address linking problem on HP-UX,
but truth be told conemporary systems, HP-UX included, wouldn't come
to that call, they would use getaddrinfo and gai_strerror, while
gethostbyname and h_errno are there to serve legacy systems. Since
legacy systems are naturally disappearing breed, we can as well just
let user interpret number.

GH#2816

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>

aes/aes_x86core.c: clarify reference implementation status.

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

evp/e_aes_cbc_hmac_{sha1|sha256}.c: tag reference code.

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

CHANGES: mention CFI annotations.

[skip ci]

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>

bn/asm: clean up unused PA-RISC modules.

Reviewed-by: Rich Salz <rsalz@openssl.org>

des/des_locl.h: clean up unused/irrelevant macros.

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

Check for zero records and return immediately

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2822)

appveyor.yml: streamline pull requests.

For pull requests not tagged with [extended tests]:

- short-curcuit most expensive fuzz and install tests;
- skip over non-shared builds;

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2810)

Configurations/50-masm.conf: add /nologo to ml64 command line.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2810)

Add NOTES.UNIX, with a description on how to deal with runpaths

[skip ci]

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2818)

Check that async_jobs is not negative and not too high.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2693)

Code health: ssl/ssl_locl.h unused macros

CLA: trivial

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2806)

VMS: compensate for gmtime_r() parameter pointer size

With VMS C, the second parameter takes a 32-bit pointer.  When
building with 64-bit pointer size default, we must compensate.

Reviewed-by: Andy Polyakov <appro@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2811)

Don't use deprecated EVP_CIPHER_CTX_cleanup() internally

Use EVP_CIPHER_CTX_reset() instead

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2812)

Remove some obsolete/obscure internal define switches:

- FLAT_INC
- PKCS1_CHECK (the SSL_OP_PKCS1_CHECK options have been
  no-oped)
- PKCS_TESTVECT (debugging leftovers)
- SSL_AD_MISSING_SRP_USERNAME (unfinished feature)
- DTLS_AD_MISSING_HANDSHAKE_MESSAGE (unfinished feature)
- USE_OBJ_MAC (note this removes a define from the public header but
   very unlikely someone would be depending on it)
- SSL_FORBID_ENULL

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Stephen Henson <steve@openssl.org>
Reviewed-by: Andy Polyakov <appro@openssl.org>

Remove OPENSSL_indirect_call()

It's undocumented and unused in the tree.  The idea seems to have
never gained much traction, and can be removed without breaking
ABI compatibility.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2800)

Don't free in cleanup routine

Cleanse instead, and free in the free routine.

Seems to have been introduced in commit
846ec07d904f9cc81d486db0db14fb84f61ff6e5 when EVP_CIPHER_CTX was made
opaque.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2798)

crypto/des: remove unreferenced rcp_enc.c module.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Stephen Henson <steve@openssl.org>

Code health: Remove base address setting for mingw

Base address setting was done for the sake of FIPS.  Since FIPS references
have been removed, we clean away this one as well.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2791)

Fix handling of EVP_PKEY_CTRL_PKCS7_ENCRYPT/DECRYPT with OPENSSL_NO_CMS.

Reviewed-by: Stephen Henson <steve@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2764)

Add AGL's "beer mug" PEM file as another test input

AGL has a history of pointing out the idiosynchronies/laxness of the
openssl PEM parser in amusing ways.  If we want this functionality to
stay present, we should test that it works.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2756)

Add test corpus for PEM reading

Generate a fresh certificate and DSA private key in their respective PEM
files.  Modify the resulting ASCII in various ways so as to produce input
files that might be generated by non-openssl programs (openssl always
generates "standard" PEM files, with base64 data in 64-character lines
except for a possible shorter last line).

Exercise various combinations of line lengths, leading/trailing
whitespace, non-base64 characters, comments, and padding, for both
unencrypted and encrypted files.  (We do not have any other test coverage
that uses encrypted files, as far as I can see, and the parser enforces
different rules for the body of encrypted files.)

Add a recipe to parse these test files and verify that they contain the
expected string or are rejected, according to the expected status.
Some of the current behavior is perhaps suboptimal and could be revisited.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2756)

Code health: Quick note in changes and the OPENSSL_GLOBAL et al changes

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2785)

Code health: With the VAX C-ism gone, OPENSSL_GLOBAL can be removed too

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2785)

Code health: Remove another VAX C-ism, globaldef and globalref

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2785)

Code health: make update

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2793)

Code health: Remove VAX exceptions in util/mkdef.pl

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2793)

Code health: Remove unused VAX transfer vector for engines

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2793)

Exdata test was never enabled.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2787)