Document the -inform, etc., in openssl.pod

Add P12 format description.
Remove PEM NOTES sections; it's in openssl.pod

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10142)

Fix some wording and markup

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10214)

Add KRB5KDF from RFC 3961

Signed-off-by: Simo Sorce <simo@redhat.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9949)

Fix doc for EC_GROUP_set_curve()

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9874)

Improve formatting for man3/EC_GROUP_new.pod

- Use `()` to qualify function names, consistently
- Limit line width to 80 chars

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9874)

Deprecate EC_GROUP_clear_free()

There is nothing confidential in `EC_GROUP` so really having a
`EC_GROUP_clear_free` function at all does not make much sense anymore.

See https://github.com/openssl/openssl/issues/9822

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9874)

Avoid using EC_GROUP_clear_free() internally

There is nothing confidential in `EC_GROUP` so really having a
`EC_GROUP_clear_free` function at all does not make much sense anymore.

See https://github.com/openssl/openssl/issues/9822

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9874)

fixed the RETURN VALUES section in the EC_GROUP documentation
for the following functions.

EC_GROUP_get_order
EC_GROUP_get_cofactor
EC_GROUP_get_curve_name
EC_GROUP_get_asn1_flag
EC_GROUP_get_point_conversion_form
EC_GROUP_get_degree

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9664)

Add/remove things from .gitignore

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10220)

crypto/s390xcap.c: Add guards around the GETAUXVAL checks

HWCAP_S390_VX is missing on SUSE Linux Enterprise Server 12 SP1, so we
add a guard that checks the present of that macro.  While we're at it,
we do the same with HWCAP_S390_STFLE, for consistency.

Reviewed-by: Patrick Steuer <patrick.steuer@de.ibm.com>
(Merged from https://github.com/openssl/openssl/pull/9892)

crypto/evp/pmeth_lib.c: Fix copy'n'paste error

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10227)

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)

ciphers/chacha20,poly1303: Fix two coverity errors

CID 1454872, 1454873:  Incorrect expression  (SIZEOF_MISMATCH)

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10223)

windows-makefile.tmpl: Convert all /I and /D to -I and -D

We were not consistently using one or the other, and the perlasm
code assumes dashes, which MSVC tolerates.

Fixes #10075

Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/10222)

Move random-related defines from e_os.h to rand_unix.c

Fixes #10049

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10050)

rand_unix.c: correct include guard comments

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10050)

Update dgst.c to show a list of message digests

Fixes #9893

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/9912)

Doc for the added internal RSA functions

It was forgotten in the previous commit.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10206)

Move the version function declarations to include/openssl/crypto.h

include/openssl/crypto.h is where older similar functions already
live, and since opensslv.h became a template, it's no longer useful
for parsing by util/mknum.pl.

Affected declarations:

 unsigned int OPENSSL_version_major(void);
 unsigned int OPENSSL_version_minor(void);
 unsigned int OPENSSL_version_patch(void);
 const char *OPENSSL_version_pre_release(void);
 const char *OPENSSL_version_build_metadata(void);

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10205)

Remove the version number in README

It's cumbersome to have to edit it at release time, it can't be made a
README.in for display reasons (Github won't show it), and having the
version number here gives no special benefit.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10205)

Generate include/openssl/opensslv.h

The added benefit is that the result becomes much simple, and easier to
digest for those that still rely on the pre-3.0 opensslv.h contents.

Fixes #10203

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10205)

Configure: get version from the file 'VERSION' instead of 'opensslv.h'

'VERSION' is a very easy file to parse, as opposed to a header file.
We also have the benefit of holding the version information in one
very well known place and can then generate all other version texts
as we see fit, for example opensslv.h.

Fixes #10203

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10205)

Replace BUF_ string function calls with OPENSSL_ ones

Deprecate the BUF_ string macros

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10207)

Move BLAKE2 digests completely to the default provider

This leaves minimal implementations of EVP_blake2b512 and EVP_blake2s256,
that are now only there to provide a name for implicit fetches.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9075)

evp_keymgmt_export_to_provider(): adjust OSSL_PARAM array for transfer

It may be that the OSSL_PARAM array we used for getting parameter
values for a key had a few too many entries.  These are detected by
their return_size == 0.  Before making second export call, we prune
away these items so we only ask for parameters that exist.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10190)

test/keymgmt_internal_test.c: New test of keymgmt internals

This tests diverse internal KEYMGMT features.  The current existing
test checks that evp_keymgmt_export_to_provider() passes the key data
correctly through two instances of the default provider, and that the
resulting numbers at the end match the initial numbers.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10190)

New RSA keymgmt implementation to handle import / export of RSA keys

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10190)

Added internal functions for easy getting and setting all RSA parameters.

rsa_set0_all_params() is used to set all the primes, exponents and
coefficients.  rsa_get0_all_params() is used to get all the primes,
exponents and coefficients.

"All" includes p, q, dP, dQ and qInv without making them separate.

All arrays of numbers are implemented as stacks to make dynamic use
easier.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10190)

Add GCD testing infrastructure.

This commit adds testing and Known Answer Tests (KATs) to OpenSSL for
the `BN_gcd` function.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10122)

Constant-time GCD function.

This commit replaces the current `BN_gcd` function with a constant-time
GCD implementation.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10122)

Unify BN_rshift design

This commit aims at refactoring the `BN_rshift` by making it a wrapper
around `bn_rshift_fixed_top`, in order to match the current design of
`BN_lshift`, as suggested in the discussion at
https://github.com/openssl/openssl/pull/10122#discussion_r332474277 .

As described in the code, by refactoring this function, `BN_rshift`
provides a constant-time behavior for sufficiently[!] zero-padded inputs
under the following assumptions: `|n < BN_BITS2|` or `|n / BN_BITS2|`
being non-secret.

Notice that `BN_rshift` returns a canonical representation of the
BIGNUM, if a `fixed_top` representation is required, the caller should
call `bn_rshift_fixed_top` instead.

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10196)

Don't abuse the API when that's not what is tested

test_EVP_PKEY_CTX_get_set_params() in test/evp_extra_test.c abused
previously sloppy checking in EVP_PKEY_sign_init_ex(), by passing a
"key to sign with" that was really just domain parameters.

Now that underlying provider import of key payload has become a bit
more strict, that leads to errors, so we need to provide at least a
public part (even though fake), and because this is a signing
operation, a private part as well.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10169)

DSA: Add export of keys and domain parameters from provider

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10169)

DH: Add export of keys and domain parameters from provider

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10169)

DSA: Add export of domain parameters to provider

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10169)

DH: Add export of domain parameters to provider

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10169)

PKEY: adapt the export_to_provider funtions to handle domain params too

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10169)

Configure: break long lines in build files

Fixes #8961

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8990)

Rename internal function name_cmp() to v3_name_cmp()

"name_cmp" caused a clash when linking with the static libcrypto.
The slight rename is better than nothing, as v3_ is an already existing
prefix.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9979)

evp_generic_do_all(): fix passing of method data

Method data was passed down as provider to ossl_algorithm_do_all(),
which causes trouble as soon a it's non-NULL.  Pass it via the data
structure instead.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9979)

'openssl list' and 'openssl provider': adapt display of multiple names

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9979)

EVP: add functions that return the name number

The returned number can be used for comparison purposes.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9979)

EVP: add name traversal functions to all fetchable types

The following new functions all do the same thing; they traverse
the set of names assigned to implementations of each algorithm type:

EVP_MD_names_do_all(), EVP_CIPHER_names_do_all(),
EVP_MAC_names_do_all(), EVP_KEYMGMT_names_do_all(),
EVP_KEYEXCH_names_do_all(), EVP_KDF_names_do_all(),
EVP_SIGNATURE_names_do_all()

We add a warning to the documentation of EVP_CIPHER_name() and
EVP_MD_name(), as they aren't suitable to use with multiple-name
implementation.

We also remove EVP_MAC_name() and evp_KDF_name(), as they serve no
useful purpose.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9979)

EVP: add missing common functionality

This adds the missing functions that should be common for all
fetchable EVP sub-APIs:

EVP_KEYMGMT_is_a(), EVP_KEYMGMT_do_all_provided(), EVP_KEYEXCH_is_a(),
EVP_KEYEXCH_do_all_provided(), EVP_KDF_is_a(), EVP_MD_is_a(),
EVP_SIGNATURE_do_all_provided(), EVP_SIGNATURE_is_a().

This also renames EVP_MD_do_all_ex(), EVP_CIPHER_do_all_ex(),
EVP_KDF_do_all_ex(), EVP_MAC_do_all_ex() to change '_ex'
to '_provided'.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9979)

Some docs cleanup

Clean up a few manual pages that we're about to touch, according to
conventions found in Linux' man-pages(7); function arguments in
descriptions should be in italics, and types, macros and similar
should be in bold, with the exception for NULL.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9979)

For provided ciphers, EVP_CIPHER_CTX_ctrl() with EVP_CTRL_INIT always returns 1

This control command should never be used with provided methods, but
since this is publically available, someone might still make the
mistake.  We make sure it returns 1 so as not to be overly
disruptive.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10163)

EVP_{CIPHER,MD}_CTX_ctrl(): make extra sure to return 0 or 1

The previous fix was incomplete.

Fixes #10106

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10163)

[KDF] Add feedback-mode and CMAC support to KBKDF

Implement SP800-108 section 5.2 with CMAC support.  As a side effect,
enable 5.1 with CMAC and 5.2 with HMAC.  Add test vectors from RFC 6803.

Add OSSL_KDF_PARAM_CIPHER and PROV_R_INVALID_SEED_LENGTH.

Signed-off-by: Robbie Harwood <rharwood@redhat.com>
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10143)

doc/man3/EVP_PKEY_CTX_new.pod: change markup according to conventions

Convention source is man-pages(7)

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10184)

Add EVP_PKEY_CTX_new_provided()

This works as much as possible EVP_PKEY_CTX_new_id(), except it takes
data that's relevant for providers, algorithm name and property query
string instead of NID and engine.

Additionally, if EVP_PKEY_CTX_new() or EVP_PKEY_CTX_new_id() was
called, the algorithm name in the EVP_PKEY context will be set to the
short name of the given NID (explicit or the one of the given
EVP_PKEY), thereby giving an easier transition from legacy methods to
provided methods.

The intent is that operations will use this information to fetch
provider methods implicitly as needed.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10184)

Fix typo and create compatibility macro

CLA:trivial

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/9472)

Correctly handle SSL3 Master Secret when calling providers

We need to pass the SSL3 Master Secret down to the provider code in order
for SSLv3 to work correctly.

Fixes #10182

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10186)

Add ChaCha related ciphers to default provider

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10081)

Fix missing Assembler defines

Implementations are now spread across several libraries, so the assembler
related defines need to be applied to all affected libraries and modules.

AES_ASM define was missing from libimplementations.a which disabled AESNI
aarch64 changes were made by xkqian.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10180)

[ec_asn1.c] Avoid injecting seed when built-in matches

An unintended consequence of https://github.com/openssl/openssl/pull/9808
is that when an explicit parameters curve is matched against one of the
well-known builtin curves we automatically inherit also the associated
seed parameter, even if the input parameters excluded such
parameter.

This later affects the serialization of such parsed keys, causing their
input DER encoding and output DER encoding to differ due to the
additional optional field.

This does not cause problems internally but could affect external
applications, as reported in
https://github.com/openssl/openssl/pull/9811#issuecomment-536153288

This commit fixes the issue by conditionally clearing the seed field if
the original input parameters did not include it.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10140)

Refactor many common flags into openssl.pod

Options moved: -rand, -writerand, -CApath, -CAfile, -no-CApath, -no-CAfile
Added rand to dgst and srp manpages (they were missing them).
New sections in openssl.pod: Random State Options, Trusted Certificate
Options.
Cleanup and add comments to find-doc-nits
Remove ".in" file support; unless giving specific arguments, this
only runs after configuration

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10118)

Remove duplicated line in 'openssl list' output

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10150)

Add BN_check_prime()

Add a new API to test for primes that can't be misused, deprecated the
old APIs.

Suggested by Jake Massimo and Kenneth Paterson

Reviewed-by: Paul Dale <paul.dale@oracle.com>
GH: #9272

Use fewer primes for the trial division

When using Miller-Rabin to test for primes, it's can be faster to first
do trial divisions, but when doing too many trial divisions it gets
slower again. We reduce the number of trial divisions to a point that
gives better performance.

Based on research by Jake Massimo and Kenneth Paterson

Reviewed-by: Paul Dale <paul.dale@oracle.com>
GH: #9272

Move MD2, MD4 and MD5 digests completely to the providers

This leaves minimal implementations of EVP_md2, EVP_md4, EVP_md5 and
EVP_mdc2, that are now only there to provide a name for implicit fetches.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10164)

Replace '=for comment ifdef' with '=for openssl'

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10151)

Building: Add modules with DEPENDs to GENERATEd files

For files GENERATEd from templates (.in files), any perl module (.pm
file) that the file depends on will automatically be used.

This means that these two lines:

    GENERATE[foo]=foo.in
    DEPEND[foo]=whatever.pm

will emit this command in a Makefile (or corresponding):

    foo: foo.in whatever.pm configdata.pm
    $(PERL) -I. -Ipathto -Mwhatever -Mconfigdata $(SRCDIR)/util/dofile.pl \\
        foo.in > foo

Note that configdata.pm is automatically added, since util/dofile.pl
itself depends on it.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10162)

Restore MD5-SHA1 in legacy method database

If we remove these, the functions EVP_get_digestbyname() and
EVP_get_cipherbyname() will stop working entirely, and it's too early
to criple them yet.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10176)

KDF: clean away old EVP_KDF declarations

They were left-overs from when we still had the legacy KDF implementation

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10170)

Remove providers/default which seems to have been missed.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10147)

Configure: accept Windows style compiler options

Currently the Configure command only supports passing UNIX style
options (`-opt`) to the compiler. Passing Windows style options
(`/opt`) yields an error. Fortunately, the compiler accepts both
types of options, nevertheless this commit fixes that discrimination
of Windows users.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9961)

Ignore empty ALPN elements in CLI args

Reviewed-by: Matt Caswell <matt@openssl.org>

Remove EVP_CIPH_FLAG_CUSTOM_CIPHER in all our providers

Not needed any more, since the presence of the OSSL_FUNC_CIPHER_CIPHER
function is enough to tell that there's a custom cipher function.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10137)

Providers: fix OSSL_FUNC_CIPHER_CIPHER functions

This involves gcm_cipher() (providers/common/ciphers/cipher_gcm.c),
ccm_cipher() (providers/common/ciphers/cipher_ccm.c), and
tdes_wrap_cipher() (providers/common/ciphers/cipher_tdes_wrap.c)

These are generic implementations of the OSSL_FUNC_CIPHER_CIPHER
function, which returned -1 on error when they should return 0.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10137)

Fix EVP_Cipher() for provided cipher implementations

EVP_Cipher() would return whatever ctx->cipher->ccipher() returned
with no regard for historical semantics.

We change this to first look if there is a ctx->cipher->ccipher(), and
in that case we treat the implementation as one with a custom cipher,
and "translate" it's return value like this: 0 => -1, 1 => outl, where
|outl| is the output length.

If there is no ctx->cipher->ccipher, we treat the implementation as
one without a custom cipher, call ctx->cipher->cupdate or
ctx->cipher->cfinal depending on input, and return whatever they
return (0 or 1).

Furthermore, we add a small hack in EVP_CIPHER_flags() to check if the
cipher is a provided one, and add EVP_CIPH_FLAG_CUSTOM_CIPHER to the
flags to be returned if there is a cipher->ccipher.  That way,
provided implementations never have to set that flag themselves, all
they need to do is to include a OSSL_FUNC_CIPHER_CIPHER function.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10137)

POD: stop abusing comment

OpenSSL uses some POD directives masquerading as 'comment'
('=for comment' etc).  This is abusive and confusing.  Instead, we use
our own keyword.

    =for openssl whatever

    =begin openssl

    whatever

    =end openssl

(we have never used the multiline form, but might start one day)

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10048)

Add a test for EVP_Digest[Sign|Verify]* with a BIO MD

If an EVP_MD_CTX is initialised with EVP_DigestSignInit_ex() or
EVP_DigestVerifyInit_ex() it should work with an MD BIO to provide
the "Updates". Test that this is the case.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10116)

Support calling EVP_DigestUpdate instead of EVP_Digest[Sign|Verify]Update

Prior to OpenSSL 3.0 EVP_Digest[Sign|Verify|Update were just macros for
EVP_DigestUpdate. They are now separate functions. Unfortunately some
code assumes that EVP_Digest[Sign|Verify]Update is interchangeable with
EVP_DigestUpdate. For example the dgst app uses an MD bio which always
calls EVP_DigestUpdate(). However the dgst app supports signing instead
of digesting and may initialise with EVP_DigestSignInit_ex() instead of
just EVP_DigestInit().

We now detect these differences and redirect to the correct function
where appropriate.

Fixes #10114

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10116)

Don't use internal knowledge about EVP_MD_CTX in and MD BIO

There is no need for us to be diving inside the EVP_MD_CTX in the
implementation of an MD BIO. We can just use public APIs. By doing this
certain calls (such as getting the MD out of the BIO were not working
correctly) where providers are in use.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10116)

Doc: update internal build.info manual

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10148)

Stop using EVP_MD_CTX_FLAG_NON_FIPS_ALLOW

This is a flag that has lost its relevance.  The new mechanism to do
the same thing is to fetch the needed digest explicitly with "-fips"
as property query, i.e. we remove any requirement for that property to
be set when fetching, even if the default property query string
requires its presence.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10138)

Fix unused goto label gcc warning

On systems with undefined AI_ADDRCONFIG and AI_NUMERICHOST:

x86_64-w64-mingw32-gcc  -I. -Icrypto/include -Iinclude -m64 -Wall -O3 -fno-ident ...
crypto/bio/b_addr.c: In function 'BIO_lookup_ex':
crypto/bio/b_addr.c:699:7: warning: label 'retry' defined but not used [-Wunused-label]
       retry:
       ^~~~~

Regression from: 3f91ede9aea70774d9b5d509bc76d484ebaff6aa

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/9856)

ssl/statem/statem_lib.c: make servercontext/clientcontext arrays of chars instead of char pointers to fix EBCDIC builds.

Fixes #9869

CLA:trivial

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9878)

(cherry picked from commit d8e8ed0220f0656a6e7e384ef4d7e1757b48fd95)

Cleanup: move provider mains up

providers/default/defltprov.c and providers/legacy/legacyprov.c
are moved up to providers/ and providers/build.info is adjusted
accordingly.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Cleanup: move remaining providers/common/include/internal/*.h

The end up in providers/common/include/prov/.
All inclusions are adjusted accordingly.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Cleanup: move providers/common/include/internal/provider_args.h

New name is providers/implementations/include/prov/implementations.h
All inclusions are adapted accordingly.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Providers: move all ciphers

From providers/{common,default}/ to providers/implementations/

Except for common code, which remains in providers/common/ciphers/.
However, we do move providers/common/include/internal/ciphers/*.h
to providers/common/include/prov/, and adjust all source including
any of those header files.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Providers: move all digests

From providers/{common,default,legacy}/ to providers/implementations/
However, providers/common/digests/digest_common.c stays where it is,
because it's support code rather than an implementation.

To better support all kinds of implementations with common code, we
add the library providers/libcommon.a.  Code that ends up in this
library must be FIPS agnostic.

While we're moving things around, though, we move digestscommon.h
from providers/common/include/internal to providers/common/include/prov,
thereby starting on a provider specific include structure, which
follows the line of thoughts of the recent header file reorganization.
We modify the affected '#include "internal/something.h"' to
'#include "prov/something.h"'.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Providers: move default kdfs,macs

From providers/default/ to providers/implementations/

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Providers: move common exchange,kdfs,keymgmt,macs,signature

From providers/common/ to providers/implementations/

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Rework how our providers are built

We put almost everything in these internal static libraries:

libcommon               Block building code that can be used by all
                        our implementations, legacy and non-legacy
                        alike.
libimplementations      All non-legacy algorithm implementations and
                        only them.  All the code that ends up here is
                        agnostic to the definitions of FIPS_MODE.
liblegacy               All legacy implementations.

libnonfips              Support code for the algorithm implementations.
                        Built with FIPS_MODE undefined.  Any code that
                        checks that FIPS_MODE isn't defined must end
                        up in this library.
libfips                 Support code for the algorithm implementations.
                        Built with FIPS_MODE defined.  Any code that
                        checks that FIPS_MODE is defined must end up
                        in this library.

The FIPS provider module is built from providers/fips/*.c and linked
with libimplementations, libcommon and libfips.

The Legacy provider module is built from providers/legacy/*.c and
linked with liblegacy, libcommon and libcrypto.
If module building is disabled, the object files from liblegacy and
libcommon are added to libcrypto and the Legacy provider becomes a
built-in provider.

The Default provider module is built-in, so it ends up being linked
with libimplementations, libcommon and libnonfips.  For libcrypto in
form of static library, the object files from those other libraries
are simply being added to libcrypto.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Build files: Make it possible to source libraries into other libraries

Added functionality to use static libraries as source for other
libraries.  When done this way, the target library will use the object
files from the sourced static libraries, making the sourced libraries
work as "containers" for object files.

We also need to make sure that the Unix Makefile template knows how to
deal with shared libraries and modules that depend on static libraries.
That's new situation we haven't had before.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Configurations/common.tmpl: Rework dependency resolution

The dependency resolution is made uniquely to resolve proper library
order when linking a program, a module or a shared library.

resolvedepends() did a little too much at once, so it's now reduced to
only collect dependencies (and is renamed to collectdepends()), while
a new function, expanddepends(), expands a list of dependency to
insure that dependent libraries are present after depending libraries,
and finally there is reducedepends() which removes unnecessary
duplicates, leaving only the last one.

resolvedepends() is now a simple utility routine that calls the three
mentioned above in correct order.

As part of this, we implement weak dependencies through the 'weak'
build.info attribute.  This is meant to cause a specific order between
libraries without requiring that they are all present.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Configure: Implement attributes for DEPEND[xxx]

We want to attach attributes on dependencies.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

Configure: rework build.info grammar and attributes

The build.info grammar's regular expressions were a horrible read.
By assigning certain sub-expressions to variables, we hope to make
it a little more readable.

Also, the handling of build.info attributes is reworked to use a
common function instead of having copies of the same code.

Finally, the attributes are reorganized to specify if they belong with
programs, libraries, modules or scripts.  This will enable more
intricate attribute assignment in changes to come.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10088)

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)

Refactor -passin/-passout documentation

Always refer to openssl.pod instead of repeating the same description
everywhere.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10126)

Document build.info syntax internally

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10121)

Fix reference to PEM docs

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10101)

util/find-doc-nits: ignore tsget.pod name

It's a separate script, not an openssl sub-command

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10065)

Command docs: more reference fixes

Normalise on L<openssl-cmd(1)> over L<cmd(1)>

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10065)

Command docs: rename openssl-tsget.pod to tsget.pod, and fix it

Make replacables italic, change '-rand' to '-r', fix links.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10065)

Command docs: diverse small fixes

Better synopsis for 'openssl dgst' and 'openssl enc', correct names
for 'openssl rehash' ('c_rehash' is mentioned there too), correct
option end marker for 'openssl verify', and finally, refer to
sub-commands as sub-commands.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10065)

Command docs: fix some engine references

"gost" was called "ccgost".
"rsax" was treated like literal input rather than an engine name.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10065)

Command docs: wrap literal input/output with C<>

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10065)