The SSL and SSL_CTX structures are reference counted. However since libssl
was made opaque there is no way for users of the library to manipulate the
reference counts. This adds functions to enable that.

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

Recent changes have removed some directories which is causing mkfiles.pl
to fail.

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

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

Enhances the routines in OpenSSL::Test::Utils for checking disabled
stuff to get their information directly from Configure instead of
'openssl list -disabled'.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

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

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

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

engines_obj changed name to padlock_obj in Configure.  We need to do
the corresponding ENGINES_ASM_OBJ -> PADLOCK_ASM_OBJ in appropriate
Makefile.ins.

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

- Small rearrangement of the TABLE and HASH printouts, and adding
  printout of the "build_scheme" item
- Renamed "engines_obj" to "padlock_obj"
- Moved the runs of dofile down...  it didn't quite make sense to have
  that in the middle of a printout

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

Now that we're using templates, we should warn people not to edit the
resulting file.  We do it through util/dofile.pl, which is enhanced
with an option to tell what file it was called from.  We also change
the calls so the template files are on the command line instead of
being redirected through standard input.  That way, we can display
something like this (example taken from include/openssl/opensslconf.h):

    /* WARNING: do not edit! */
    /* Generated by Configure from include/openssl/opensslconf.h.in */

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

The goal is Makefile, not Makefile.new
Remove the second generation of opensslconf.h

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

There are two versions of print_table_entry() in Configure.  Remove
the older.

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

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

The config for the removed GOST engine reappeared by mistake.  Now
removed again.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

It is time for Makefile.org to fold into the new regime and have a run
through util/dofile.pl.  This forces some information out of there and
into Configure, which isn't a bad thing, it makes Configure
increasingly the center of build information, which is as it should
be.

A few extra defaults were needed in the BASE template to get rid of
warnings about missing values.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

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

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

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

Move opensslconf.h.in to include/openssl.
Split off DES,BN,RC4 stuff into separate header file
templates in crypto/include/internal/*_conf.h.in

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

Some test programs may depend on more than just one TLS version, for
example.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

This is an internal facility, never documented, not for
public consumption.  Move it into ssl (where it's only used
for DTLS).

I also made the typedef's for pqueue and pitem follow our style: they
name structures, not pointers.

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

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

The explanation is that it falls back to using tools/c_rehash if
'apps/openssl rehash' isn't supported on the platform at hand.

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

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>

GH: #580

Simplify BUF_MEM init. code

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>

GH: #580

Now that configdata.pm is the centre of information, use that instead
of Makefile to figure out reconfiguration parameters.  This will help
future development with different Makefile file names.

The code to read necessary configuration data from Makefile is retained
for an easy transition to configdata.pm based information gathering.  It
will be removed later on.

This change includes moving the variable $cross_compile_prefix to %config.

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

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

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

When experimental-store is enabled, it does not compile due to the
change to opaque data structures.

Change CRYPTO_add() to EVP_PKEY_up_ref() as needed.

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>

RT: #4263, GH: #579

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@openssl.org>

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>

The turn has come to have crypto/opensslconf.h.in get run through
util/dofile.pl.  The consequence is that a large number of variables
get moved to the %config table.

Also, the string variables $openssl_*, which were populated with cpp
lines, all being of the form "#define SOMETHING", were converted into
ARRAY refs in %config values, containing just the list of macros to be
defined.

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

For this adaptation, the variables $options and $version needed to
move to %config in Configure, and why not move all other variables
holding diverse version numbers at the same time?

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

This includes a start on how to install missing modules.

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

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

Because we're using Text::Template and we know it's a non core Perl
module, we choose to bundle it into our source, for convenience.

external/perl/Downloaded.txt document what modules we choose to bundle
this way and exactly where we downloaded it from.

With this changes comes the transfer module for with_fallback.

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

For our own convenience, we need a mechanism to be able to fall back
on bundled Perl modules.  It's a minimal package that's called like
this:

    use with_fallback qw(Module1 Module2 ...);

For each module, it will try to require them from the system
installation, and failing that, it will temporarly add external/perl
and try to require transfer::{ModuleName}.  It requires that each
bundled Perl modules is accompanied by a small transfer module
(external/perl/transfer/ModuleName.pm in our example) that knows
exactly what to load.

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

apps/CA.pl and tools/c_rehash are built from template files.  So far,
this was done by Configure, which created its own problems as it
forced everyone to reconfigure just because one of the template files
had changed.
Instead, have those files created as part of the normal build in apps/
and in tools/.

Furthermore, this prepares for a future where Configure may produce
entirely other build files than Makefile, and the latter can't be
guaranteed to be the holder of all information for other scripts.
Instead, configdata.pm (described below) becomes the center of
configuration information.

This introduces a few new things:

%config         a hash table to hold all kinds of configuration data
                that can be used by any other script.
configdata.pm   a perl module that Configure writes.  It currently
                holds the hash tables %config and %target.
util/dofile.pl  a script that takes a template on STDIN and outputs
                the result after applying configuration data on it.
                It's supposed to be called like this:

                        perl -I$(TOP) -Mconfigdata < template > result

                or

                        perl -I$(TOP) -Mconfigdata templ1 templ2 ... > result

                Note: util/dofile.pl requires Text::Template.

As part of this changed, remove a number of variables that are really
just copies of entries in %target, and use %target directly.  The
exceptions are $target{cflags} and $target{lflags}, they do get copied
to $cflags and $lflags.  The reason for this is that those variable
potentially go through a lot of changes and would rather deserve a
place in %config.  That, however, is for another commit.

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

It's time for print_table_entry to get a bit of refreshment.  The way it
was put together, we needed to maintain the list of known configuration
keys of interest twice, in different shapes.  This is error prone, so
move the list of strings to a common list for all printing cases, and
use simple formatting of lines to do the actual printout based on that
list.

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

The code is trying to interpolate the value of the BASE_SECTION macro,
but due to excess escaping, it instead prints the string "BASE_SECTION".

Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Kurt Roeckx <kurt@openssl.org>