Library form overwrites module form due to both having the same name `gost.dll'.
As temporary workaround do not build library form on Windows, until we invent
how to solve it properly. Currently, there is no known need of engine in the
library form on Windows.

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Error message:

  OPENSSL_Uplink(00007FF9FB00F600,08): no OPENSSL_Applink

Link: https://www.openssl.org/docs/faq.html#PROG3


Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Error message:

  test_keyexpimp.c(111,11): warning C4013: 'setenv' undefined; assuming extern returning int

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Error message:

  gost12sum.c(13,10): fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory
  gost12sum.c(80,23): warning C4013: 'getopt' undefined; assuming extern returning int
  test_keyexpimp.c(7,10): fatal error C1083: Cannot open include file: 'arpa/inet.h': No such file or directory

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

  test_digest.c(513,2): warning C4389: '==': signed/unsigned mismatch
  test_digest.c(820,5): warning C4389: '==': signed/unsigned mismatch
  test_sign.c(241,22): warning C4389: '==': signed/unsigned mismatch
  test_params.c(1131,16): warning C4018: '<': signed/unsigned mismatch
  test_sign.c(241,22): warning C4389: '==': signed/unsigned mismatch

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Error messages:

  test_ciphers.c(329,5): error C2059: syntax error: '{'
  test_ciphers.c(329,5): error C2059: syntax error: '}'
  test_ciphers.c(329,5): error C2059: syntax error: ')'

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

MSVC is not C99 compatible[1]. Errors:

  test_ciphers.c(312,25): error C2057: expected constant expression
  test_ciphers.c(312,25): error C2466: cannot allocate an array of constant size 0
  test_ciphers.c(312,26): error C2133: 'c': unknown size

Link: https://docs.microsoft.com/en-us/cpp/c-language/ansi-conformance


Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Error message:

  test_ciphers.c(37,9): warning C4068: unknown pragma 'GCC'

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

No need external library (Ws2_32.lib) if we can easily implement it.
Error messages:

  gost_core.lib(gost_keyexpimp.obj) : error LNK2019: unresolved external symbol htonl referenced in function gost_kdftree2012_256
  gost.dll : fatal error LNK1120: 1 unresolved externals

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

These planned to be removed later anyway. Error message:

  gosthash2012_ref.h(15,18): warning C4081: expected '('; found 'string'

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Error message example:

  gost_prov_cipher.c(237,63): error C2059: syntax error: '}'

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Un-inline `cipher_gost_grasshopper_ctracpkm'. Error message:

  gost_core.lib(gost_omac_acpkm.obj) : error LNK2019: unresolved external symbol cipher_gost_grasshopper_ctracpkm referenced in function CMAC_ACPKM_Init
  gost.dll : fatal error LNK1120: 1 unresolved externals

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Error example:

  gost_md.c(54,45): error C2059: syntax error: ':'
  gost_md.c(67,5): error C2059: syntax error: 'if'
  gost_md.c(69,6): error C2143: syntax error: missing '{' before '->'
  gost_md.c(69,6): error C2059: syntax error: '->'
  gost_md.c(70,5): error C2059: syntax error: 'return'
  gost_md.c(71,1): error C2059: syntax error: '}'

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Errors are like this:

  gost_pmeth.c(188): warning C4702: unreachable code
  gost_grasshopper_cipher.c(909): warning C4702: unreachable code

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Error message:

  gost_crypt.c(652,36): warning C4018: '<': signed/unsigned mismatch

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Since they are now global. Error message:

  cl : command line error D8021: invalid numeric argument '/Wno-error=deprecated-declarations'

Fixes: 5dfb598d

 ("CMakeLists.txt: Workaround openssl deprecation of HMAC and CMAC primitives")
Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

`/wd4996' disables deprecated declarations warning, this is analogous to
`-Wno-error=deprecated-declarations'. Error example:

  gost_pmeth.c(39,17): warning C4996: 'EVP_PKEY_get0': Since OpenSSL 3.0

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Uses actions/cache to speed up engine rebuilds.

Signed-off-by: Vitaly Chikunov <vt@altlinux.org>

Noticed that there is some misindentation (also fix it).

When we use git cli in OS Linux, with enabled gost engine
git utility we got fatal erro

They needed to be modified to handled EVP_CIPHERs implemented by a
provider.

We add the macs for the provider as wrappers around the EVP_MD
implementations designed for ENGINEs.  This is not the most elegant,
but it does the job.

When an algorithm has an OID, it's included in the OSSL_ALGORITHM name
as an alias.  This is the way to avoid having to register the OIDs in
OpenSSL proper.

We add the digests for the provider as wrappers around the routines
designed for ENGINEs.  This is not the most elegant, but it does the
job.

When an algorithm has an OID, it's included in the OSSL_ALGORITHM name
as an aliase.  This is the way to avoid having to register the OIDs in
OpenSSL proper.

test/01-digest.t is modified to test the provider as well.

We add the ciphers for the provider as wrappers around the routines
designed for ENGINEs.  This is not the most elegant, but it does the
job.

When an algorithm has an OID, it's included in the OSSL_ALGORITHM name
as an aliase.  This is the way to avoid having to register the OIDs in
OpenSSL proper.

test/03-encrypt.t is modified to test the provider as well.

This makes space for provider tests.

As a beginning, test/00-provider.t is added.  It corresponds to
test/00-engine.t.

All other test/*.t are currently skipped unless the engine is tested.
They will be re-enabled as support for each algorithm type is added in
the provider code.

This adds the source to get a minimal provider that provides...
nothing.

The gost provider is planned to be a wrapper around the already
existing functionality, designed for ENGINE use.

The easiest way to do this is to let the gost ENGINE continue to exist
within the gost provider, as an internal ENGINE.  To do that, we make
it possible to build gost_eng.c so it only populates the GOST ENGINE
structure, but doesn't perform any of the ENGINE registration.  That
way, the GOST ENGINE structure becomes purely internal, and can be
used as the actual implementation of the offered provider functionality,
through diverse EVP calls that accept an ENGINE pointer.

The error source files, e_gost_err.c and e_gost_err.h, are not
suitable for providers as they are, so we need to move those away from
the core library, and leave it to the provider code to deal with it.

* Don't recreate GOST EC groups every time

For multiple keygen it saves 6% time

...in DN output