Fix CID 1434549: Unchecked return value in test/evp_test.c

5. check_return: Calling EVP_EncodeUpdate without checking return value
(as is done elsewhere 4 out of 5 times).

Fix CID 1371695, 1371698: Resource leak in test/evp_test.c

- leaked_storage: Variable edata going out of scope leaks the storage it
points to.

- leaked_storage: Variable encode_ctx going out of scope leaks the
storage it points to

Fix CID 1430437, 1430426, 1430429 : Dereference before null check in test/drbg_cavs_test.c

check_after_deref: Null-checking drbg suggests that it
may be null, but it has already been dereferenced on all paths leading
to the check

Fix CID 1440765: Dereference before null check in test/ssltestlib.c

check_after_deref: Null-checking ctx suggests that it may be null, but
it has already been dereferenced on all paths leading to the check.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
(Merged from https://github.com/openssl/openssl/pull/7993)

(cherry picked from commit 760e2d60e62511a6fb96f547f6730d05eb5f47ec)

More configurable crypto and ssl library initialization

1.  In addition to overriding the default application name,
    one can now also override the configuration file name
    and flags passed to CONF_modules_load_file().

2.  By default we still keep going when configuration file
    processing fails.  But, applications that want to be
    strict about initialization errors can now make explicit
    flag choices via non-null OPENSSL_INIT_SETTINGS that omit
    the CONF_MFLAGS_IGNORE_RETURN_CODES flag (which had so far
    been both undocumented and unused).

3.  In OPENSSL_init_ssl() do not request OPENSSL_INIT_LOAD_CONFIG
    if the options already include OPENSSL_INIT_NO_LOAD_CONFIG.

4.  Don't set up atexit() handlers when called with opts equal to
    OPENSSL_INIT_BASE_ONLY (this flag should only be used alone).

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7969)

Update generator copyright year.

Some Travis builds appear to fail because generated objects get
2019 copyrights now, and the diff complains.

Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7969)

Add a test for correct handling of the cryptopro bug extension

This was complicated by the fact that we were using this extension for our
duplicate extension handling tests. In order to add tests for cryptopro
bug the duplicate extension handling tests needed to change first.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7984)

(cherry picked from commit 9effc496ad8a9b0ec737c69cc0fddf610a045ea4)

Don't complain if we receive the cryptopro extension in the ClientHello

The cryptopro extension is supposed to be unsolicited and appears in the
ServerHello only. Additionally it is unofficial and unregistered - therefore
we should really treat it like any other unknown extension if we see it in
the ClientHello.

Fixes #7747

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7984)

(cherry picked from commit 23fed8ba0ec895e1b2a089cae380697f15170afc)

doc/man1/x509.pod: fix typo

This looks like a copy&paste error from req.pod to x509.pod.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7995)

(cherry picked from commit 67ee899cb51d3e3d7b5f00b878f8f82a097b93f0)

Restore compatibility with GOST2001 implementations.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7985)

(cherry picked from commit 673e0bbbe4b9cbd19a247c0b18c171bb0421915a)

Fix no-cmac

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7979)

(cherry picked from commit 87bbbfb1e4fc2035e8f9ec1d6313a41c410a3218)

Support _onexit() in preference to atexit() on Windows

This enables cleanup to happen on DLL unload instead of at process exit.

[extended tests]

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)

Introduce a no-pinshared option

This option prevents OpenSSL from pinning itself in memory.

Fixes #7598

[extended tests]

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)

Test atexit handlers

Test that atexit handlers get called properly at process exit, unless we
have explicitly asked for them not to be.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)

Don't link shlibloadtest against libcrypto

The whole point of shlibloadtest is to test dynamically loading and
unloading the library. If we link shlibloadtest against libcrypto then that
might mask potential issues.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)

Implement OPENSSL_INIT_NO_ATEXIT

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)

Fix a RUN_ONCE bug

We have a number of instances where there are multiple "init" functions for
a single CRYPTO_ONCE variable, e.g. to load config automatically or to not
load config automatically. Unfortunately the RUN_ONCE mechanism was not
correctly giving the right return value where an alternative init function
was being used.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)

Fix shlibloadtest to properly execute the dso_ref test

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7983)

Eliminate unused buffers from ssl3_change_cipher_state

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7971)

(cherry picked from commit 9c5ef4ea486f675f33592b34775c3e453f60ee69)

Remove unused variables from tls1_change_cipher_state

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7971)

(cherry picked from commit d072eea2e39c4444ecce3598556053a4c552d9a2)

make update

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
(Merged from https://github.com/openssl/openssl/pull/7973)

Fix cert with rsa instead of rsaEncryption as public key algorithm

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/7962)

(cherry picked from commit 1f483a69bce11c940309edc437eee6e32294d5f2)

Fix a minor nit in the hkdflabel size

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7913)

(cherry picked from commit 0b4233f5a4a181a6dcb7c511cd2663e500e659a4)

Fixed minor typo in the req.pod docs

CLA: Trivial

Fixes #7928.

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7973)

(cherry picked from commit 005247af76aa8d623fadbf3a82aa7b8ef449989f)

fixed grammar typo

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7959)

(cherry picked from commit fff1470cda05dedd98d2e8e18c3bc320635365d4)

Do not complain when /dev/crypto does not exist.

FreeBSD does not enable cryptodev(4) by default.  OpenBSD disabled support
for /dev/crypto by default from 4.9 and removed it from 5.7.  Now the engine
is properly enabled by default on BSD platforms (see #7885), it continuously
complains:

Could not open /dev/crypto: No such file or directory

Hide the nagging error message behind ENGINE_DEVCRYPTO_DEBUG.

CLA: trivial

Reviewed-by: Richard Levitte <levitte@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/7896)

(cherry picked from commit c79a022da973140c141eeebff9170ca5702be0f9)

EVP_PKEY_size declared to take a const parameter

CLA: trivial
Function EVP_PKEY_size has been modified to take a const parameter

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7892)

(cherry picked from commit 47ec2367ebf6082abb103e66e609feb5c128d358)

Coverity fix in some crypto/asn1 code

Call to i2d method returns an int value.

Fix:
CID 1338183 (#1 of 1): Improper use of negative value (NEGATIVE_RETURNS)
CID 1371691 (#1 of 1): Improper use of negative value (NEGATIVE_RETURNS)
CID 1371692 (#1 of 1): Improper use of negative value (NEGATIVE_RETURNS)

[extended tests]

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7359)

(cherry picked from commit da84249be6492ccfc5ecad32ac367fd06e9bdbef)

Coverity fix in apps/oscp

CID 1440002 (#1 of 1): Use after free (USE_AFTER_FREE)
Not a deadly error, because error was just before app exit.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7359)

(cherry picked from commit 39fc4c17c49d248e0757bac9aa8863d205c7ad12)

Admit unknown pkey types at security level 0

The check_key_level() function currently fails when the public key
cannot be extracted from the certificate because its algorithm is not
supported.  However, the public key is not needed for the last
certificate in the chain.

This change moves the check for level 0 before the check for a
non-NULL public key.

For background, this is the TPM 1.2 endorsement key certificate.
I.e., this is a real application with millions of certificates issued.
The key is an RSA-2048 key.

The TCG (for a while) specified

     Public Key Algorithm: rsaesOaep

rather than the commonly used

     Public Key Algorithm: rsaEncryption

because the key is an encryption key rather than a signing key.
The X509 certificate parser fails to get the public key.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7906)

Fix function names in ct(7) documentation

The correct function name is SSL_CTX_enable_ct, not SSL_CTX_ct_enable.

Signed-off-by: Christian Heimes <christian@python.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7916)

(cherry picked from commit 6f8b858d054c4eb1112531e39da9ceb5fa37e5f1)

man: harmonize the various formulations in the HISTORY sections

While stereotyped repetitions are frowned upon in literature, they
serve a useful purpose in manual pages, because it is easier for
the user to find certain information if it is always presented in
the same way. For that reason, this commit harmonizes the varying
formulations in the HISTORY section about which functions, flags,
etc. were added in which OpenSSL version.

It also attempts to make the pod files more grep friendly by
avoiding to insert line breaks between the symbol names and the
corresponding version number in which they were introduced
(wherever possible). Some punctuation and typographical errors
were fixed on the way.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7854)

ERR: preserve system error number in a few more places

It turns out that intialization may change the error number, so we
need to preserve the system error number in functions where
initialization is called for.
These are ERR_get_state() and err_shelve_state()

Fixes #7897

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7902)

(cherry picked from commit 91c5473035aaf2c0d86e4039c2a29a5b70541905)

Add missing OPENSSL_clear_free before using ec->key

Fixes #7657

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7877)

(cherry picked from commit 4128136a28c3b7d3878daed728c49f18eb950adc)

add missing check for BN_mod_inverse

Fixes #7650

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7876)

(cherry picked from commit 55833a8de70589a5000044b6291e190f5a3826ae)

fix inconsistent flen check in rsa_pk1 and rsa_oaep

Fixes #7117

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7880)

(cherry picked from commit 4fea7005c3d08ed0d575bdea5082b7b0ce355237)

VMS build: better treatment of .S -> .obj compilation

It turned out that .S files aren't to be treated as lightly as I
thought.  They need to go through a preprocessing step, which .s files
don't need to.

Corrects #7703

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7889)

(cherry picked from commit e436664828429a23bf210710ede34203bdfdc2b8)

doc/man3: remove copy&paste leftover

Fixes #7883

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7884)

(cherry picked from commit 00eb879f74971e3c048286ef44f6f544676f90d7)

Use the correct function name

CLA: trivial

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7887)

(cherry picked from commit 829800b0735ab99a0962418180cb076ff8081028)

Fix error in processing $target{enable}

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7885)

(cherry picked from commit 7a8a35ff0ce0c25a36b494a4c7e3f5f390679e6e)

Fixed typo (vi leftover).

There was a trailing :w at a line, which didn't make sense in context
of the sentence/styling. Removed it, because I think it's a leftover
vi command.

CLA: trivial
Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7875)

(cherry picked from commit 143b631639f95822e5e00768254fa35c787f6396)

Add an Ed448 malleability test

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/7748)

(cherry picked from commit 6de98b4fb6265f8a4b2e5b599d6714ff937dca6b)

Disallow Ed448 signature malleability

Check that s is less than the order before attempting to verify the
signature as per RFC8032 5.2.7

Fixes #7706

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
(Merged from https://github.com/openssl/openssl/pull/7748)

(cherry picked from commit 08afd2f37a4465c90b9b9e2081c9e8df4726db89)

eng_devcrypto: make sure digest can do copy

Digest must be able to do partial-state copy to be used.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7585)

(cherry picked from commit 16e252a01b754a13e83d5e5e87afbe389997926b)

eng_devcrypto: fix ctr mode

Make CTR mode behave like a stream cipher.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7585)

(cherry picked from commit b5015e834aa7d3f0a5d7585a8fae05cecbdbb848)

eng_devcrypto: add cipher CTX copy function

The engine needs a custom cipher context copy function to open a new
/dev/crypto session.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7585)

(cherry picked from commit 6d99e238397859f2df58c60e28905193b2dd6762)

eng_devcrypto: close session on cleanup, not final

Close the session in digest_cleanup instead of digest_final.  A failure
in closing the session does not mean a previous successful digest final
has failed as well.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7585)

(cherry picked from commit a67203a19d379a8cc8b369587c60c46eb4e19014)

eng_devcrypto: fix copy of unitilialized digest

If the source ctx has not been initialized, don't initialize the copy
either.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7585)

(cherry picked from commit ae8183690fa53b978d4647563f5a521c4cafe94c)

eng_devcrypto: expand digest failure cases

Return failure when the digest_ctx is null in digest_update and
digest_final, and when md is null in digest_final.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7585)

(cherry picked from commit 4d9f99654441e36fdcb49540a1dbc9d4c70ccb68)

eng_devcrypto: don't leak methods tables

Call functions to prepare methods after confirming that /dev/crytpo was
sucessfully open and that the destroy function has been set.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7585)

(cherry picked from commit d9d4dff5c640990d45af115353fc9f88a497a56c)

INSTALL: add note about devcrypto engine

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7585)

(cherry picked from commit eb3fe0ee5411449230cff46b7f13ebef37aa950e)

Document the num_tickets s_server option

Fixes #7727

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7756)

(cherry picked from commit 7ffb7fbe8c1c1bc467993389478d2ea6f00e1860)

Preserve errno on dlopen

For the same reasons as in the previous commit we must preserve errno
across dlopen calls. Some implementations (e.g. solaris) do not preserve
errno even on a successful dlopen call.

Fixes #6953

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7680)

(cherry picked from commit 3cb4e7dc1cf92022f62b9bbdd59695885a1265ff)

Make sure build_SYS_str_reasons() preserves errno

This function can end up being called during ERR_get_error() if we are
initialising. ERR_get_error() must preserve errno since it gets called via
SSL_get_error(). If that function returns SSL_ERROR_SYSCALL then you are
supposed to inspect errno.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7680)

(cherry picked from commit 71b1ceffc4c795f5db21861dd1016fbe23a53a53)

make update

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7852)

(cherry picked from commit f2f734d4f9e34643a1d3e5b79d2447cd643519f8)

Prevent calling decryption in an encryption context and vice versa

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7852)

(cherry picked from commit a8bf2f8f24bda57c860e4356f31264fff63fe8b9)

err/err.c: improve err_clear_last_constant_time's portability.

Reviewed-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7850)

(cherry picked from commit 91d0fd1c2753f0f7d6e0953eed3cfb6eb96d8ff4)

Make EVP_PKEY_asn1_add0() stricter about its input

It turns out that the strictness that was implemented in
EVP_PKEY_asn1_new() (see Github openssl/openssl#6880) was badly placed
for some usages, and that it's better to do this check only when the
method is getting registered.

Fixes #7758

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7847)

(cherry picked from commit a86003162138031137727147c9b642d99db434b1)

Doc: fix reference to deprecated methods.

Reviewed-by: Paul Yang <yang.yang@baishancloud.com>
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/7705)

(cherry picked from commit 56bc3ea0a49b8aa99a4b031e7cb48ea87fe28e2d)

curve25519.c: improve formula alignment

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7750)

(cherry picked from commit 425dde5d75a6ffff9a1027107711b99da39e3519)

curve25519.c: reformat code to follow coding guidelines

Fixes #7698

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7750)

(cherry picked from commit 3a17b9a46ecf54a30073534dff04e3223ff98813)

Fix some SSL_export_keying_material() issues

Fix some issues in tls13_hkdf_expand() which impact the above function
for TLSv1.3. In particular test that we can use the maximum label length
in TLSv1.3.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7755)

(cherry picked from commit 0fb2815b873304d145ed00283454fc9f3bd35e6b)

Revert "Reduce stack usage in tls13_hkdf_expand"

This reverts commit ec0c5f5693e39c5a013f81e6dd9dfd09ec65162d.

SSL_export_keying_material() may use longer label lengths.

Fixes #7712

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7755)

(cherry picked from commit ed371b8cbac0d0349667558c061c1ae380cf75eb)

bn/bn_{div|shift}.c: introduce fixed-top interfaces.

Fixed-top interfaces tolerate zero-padded inputs and facilitate
constant-time-ness. bn_div_fixed_top tolerates zero-padded dividend,
but not divisor. It's argued that divisor's length is public even
when value is secret.

[extended tests]

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7589)

(cherry picked from commit 3a4a88f436ed1dd1165e0b59c1ca4a25e9e1d690)

bn/bn_div.c: make conditional addition unconditional

and add template for constant-time bn_div_3_words.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7589)

(cherry picked from commit 3da2e9c4ee45989a426ff513dc6c6250d1e460de)

Configure: recognize div3w modules and add -DBN_DIV3W.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7589)

(cherry picked from commit 31703da3b8e743c07a9fdb6025aa526594c2a319)

Configurations/10-main.conf: remove MIPS bn_div_3_words.

It's being replaced with constant-time alternative.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7589)

(cherry picked from commit b34446cca2b1814fa674adc8076707d2b65a697f)

Add an Ed25519 signature maleability test

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7697)

(cherry picked from commit e65a79d2aae76c27d68587ff66cb6b65a3283e50)

Disallow Ed25519 signature maleability

Check that s is less than the order before attempting to verify the
signature as per RFC8032 5.1.7

Fixes #7693

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7697)

(cherry picked from commit 0ac8f35c04c4fcdee421170ae6351e42b9e84ce4)

Docs fixup: some man3 pages had unindented code in SYNOPSIS

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7744)

(cherry picked from commit 7b4a3515a4ddb567d48000e61d7cb640d0c5f261)

rsa/rsa_ssl.c: make RSA_padding_check_SSLv23 constant-time.

Copy of RSA_padding_check_PKCS1_type_2 with a twist that rejects padding
if nul delimiter is preceded by 8 consecutive 0x03 bytes.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 603221407ddc6404f8c417c6beadebf84449074c)

rsa/rsa_oaep.c: remove memcpy calls from RSA_padding_check_PKCS1_OAEP.

And make RSAErr call unconditional.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 75f5e944be97f28867e7c489823c889d89d0bd06)

rsa/rsa_pk1.c: remove memcpy calls from RSA_padding_check_PKCS1_type_2.

And make RSAErr call unconditional.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit e875b0cf2f10bf2adf73e0c2ec81428290f4660c)

rsa/rsa_ossl.c: make RSAerr call in rsa_ossl_private_decrypt unconditional.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit 89072e0c2a483f2ad678e723e112712567b0ceb1)

err/err.c: add err_clear_last_constant_time.

Expected usage pattern is to unconditionally set error and then
wipe it if there was no actual error.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit f658a3b64d8750642f4975090740865f770c2a1b)

Don't test the collected system errors when configured to not have them

Config options 'no-err' and 'no-autoerrinit'

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7711)

(cherry picked from commit f1d49ed94707f5f0799541aa8e528dce67712948)

Fix access zero memory if SSL_DEBUG is enabled

If compile OpenSSL with SSL_DEBUG macro, some test cases will cause the
process crashed in the debug code.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7707)

(cherry picked from commit 5a4481f0e0bbf836c7f41805e84617784cb6b1db)

VMS build: don't forget the generation marker when removing files

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7703)

(cherry picked from commit f19d20b60fcdfde802f96afa3796f20d0da25eab)

VMS build: in descrip.mms.tmpl's src2obj, do .S -> .asm too

We only convert lowercase .s to .asm, that turned out not to be sufficient.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7703)

(cherry picked from commit c739e676ebc6e7f66aabee1ac3d2040b3103a890)

Clean up BN_consttime_swap.

Updated "condition" logic lifted from Theo Buehler's LibreSSL commit https://github.com/libressl-portable/openbsd/commit/517358603b4be76d48a50007a0d414c2072697dd

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/7619)

(cherry picked from commit 900fd8f375ca758d182e894bc1556509b231dbc8)

Avoid test_errstr in a cross compiled configuration

There's too high a chance that the openssl app and perl get different
messages for some error numbers.

[extended tests]

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7699)

(cherry picked from commit 0777de15ff09105593c7e778cf47f97a9144d273)

Have util/mktar.sh display the absolute path to the tarball

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7696)

(cherry picked from commit 3be389435fc7b94623d972b622dbd9f0cd5c34f7)

Make sure to run util/mktar.sh from the source directory

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7696)

(cherry picked from commit b741f153b2f24139d7210b1b0c9caf561f4900e8)

Don't export the submodules 'boringssl', 'krb5' and 'pyca-cryptography'

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7696)

(cherry picked from commit 76bc401cc63219a462224884cb4af787e17725ed)

Don't export util/mktar.sh

When creating a tarball, it's pointless to include scripts that assume
a git workspace.

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7696)

(cherry picked from commit b9a694717902af796639e1dff641ba620703303b)

Document the removed 'dist' target

Also adds missing copyright boilerplate to util/mktar.sh

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7696)

(cherry picked from commit b42922ea2f605fd6c42faad1743fb27be5f7f1f3)

VMS config: Typo fix, as -> AS

This typo prevented ia64 assembler to be compiled on VMS

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7700)

(cherry picked from commit 04375857cf4971460c473fa44bef86351f2177fe)

VMS: fix collected error strings

It turns out that on VMS, strerror() returns messages with added
spaces at the end.

We wouldn't had noticed if it wasn't for perl trimming those spaces
off for its own sake and thereby having test/recipes/02-test_errstr.t
fail on VMS.

The safe fix is to do the same trimming ourselves.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/7701)

(cherry picked from commit 9f15e5b911ba6053e09578f190354568e01c07d7)

Honour mandatory digest on private key in has_usable_cert()

If the private key says it can only support one specific digest, then
don't ask it to perform a different one.

Fixes: #7348

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit 2d263a4a73f852005b16359873475d48755999ad)

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7609)

Stop marking default digest for EC keys as mandatory

ASN1_PKEY_CTRL_DEFAULT_MD_NID is documented to return 2 for a mandatory
digest algorithm, when the key can't support any others. That isn't true
here, so return 1 instead.

Partially fixes #7348

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(cherry picked from commit eb7eb1378cd15c4652884b3701d4c0ef27b5b8a6)

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7609)

Remove all 'make dist' artifacts

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7692)

(cherry picked from commit 8d9535ec3e317641b8e551973c8cfe2ee1c89296)

Change tarball making procedure

Since recently, OpenSSL tarballs are produced with 'make tar' rather
than 'make dist', as the latter has turned out to be more troublesome
than useful.

The next step to look at is why we would need to configure at all to
produce a Makefile just to produce a tarball.  After all, the tarball
should now only contain source files that are present even without
configuring.

Furthermore, the current method for producing tarballs is a bit
complex, and can be greatly simplified with the right tools.  Since we
have everything versioned with git, we might as well use the tool that
comes with it.

Added: util/mktar.sh, a simple script to produce OpenSSL tarballs.  It
takes the options --name to modify the prefix of the distribution, and
--tarfile tp modify the tarball file name specifically.

This also adds a few entries in .gitattributes to specify files that
should never end up in a distribution tarball.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7692)

(cherry picked from commit 8c209eeef426ded66ce99048f535f35d08b88462)

Add an error message test recipes for system error messages

This ensures we collected them properly and and as completely as can
be tested safely.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7681)

(cherry picked from commit 4b801fdcf4c25f44374eb18cb18f36d904975edd)

Smarter build of system error text database

We stored copies of the system error texts in a fixed line size array,
which is a huge waste.  Instead, use a static memory pool and pack all
the string in there.  The wasted space at the end, if any, gives us
some leeway for longer strings than we have measured so far.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7681)

(cherry picked from commit 2c5b6bbb6797242f43b5a986e1c018943e5c1305)

rsa/rsa_ossl.c: cache MONT_CTX for public modulus earlier.

Blinding is performed more efficiently and securely if MONT_CTX for public
modulus is available by the time blinding parameter are instantiated. So
make sure it's the case.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7586)

(cherry picked from commit 2cc3f68cde77af23c61fbad65470602ee86f2575)

openssl s_server: don't use sendto() with connected UDP socket

Fixes #7675

On macOS, if you call `connect()` on a UDP socket you cannot then
call `sendto()` with a destination, otherwise it fails with Err#56
('socket is already connected').

By calling `BIO_ctrl_set_connected()` on the wbio we can tell it
that the socket has been connected and make it call `send()` rather
than `sendto()`.

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/7676)

(cherry picked from commit b92678f4e94eeec468f194333f874906a6fff7f1)

Fix wrong return value in ssl3_ctx_ctrl

This fixes issue #7677

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7678)

Travis CI: Use flake8 to find Python syntax errors or undefined names

CLA: trivial

In Travis CI, add a Python linting step that runs flake8 tests in Travis CI
to find syntax errors and undefined names. (http://flake8.pycqa.org)

__E901,E999,F821,F822,F823__ are the "_showstopper_" flake8 issues that can halt
the runtime with a SyntaxError, NameError, etc. Most other flake8 issues are
merely "style violations" -- useful for readability but they do not effect
runtime safety.

* F821: undefined name `name`
* F822: undefined name `name` in `__all__`
* F823: local variable name referenced before assignment
* E901: SyntaxError or IndentationError
* E999: SyntaxError -- failed to compile a file into an Abstract Syntax Tree

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/7410)

(cherry picked from commit 2a6f57bc098cdfa6320189f2725337c7f74a052e)

Prepare for 1.1.1b-dev

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

Prepare for 1.1.1a release

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

Update copyright year

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7669)

Update CHANGES and NEWS for new release

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/7664)

Configuration: only include shared_sources in dirinfo in shared config

Without this precaution, we end up having directory targets depend on
shlib object files for which there are no rules.

Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7645)