Disabled by default, but can be enabled by setting the
ct_validation_callback on a SSL or SSL_CTX.
Reviewed-by: Ben Laurie <ben@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
This patch provides getters for default_passwd_cb and userdata for SSL
and SSL_CTX. The getter functions are required to port Python's ssl module
to OpenSSL 1.1.0.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Specifies a callback that will, in the future, be used by the SSL code to
decide whether to abort a connection on Certificate Transparency grounds.
Reviewed-by: Ben Laurie <ben@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
Implementation experience has shown that the original plan for async wait
fds was too simplistic. Originally the async logic created a pipe internally
and user/engine code could then get access to it via API calls. It is more
flexible if the engine is able to create its own fd and provide it to the
async code.
Another issue is that there can be a lot of churn in the fd value within
the context of (say) a single SSL connection leading to continually adding
and removing fds from (say) epoll. It is better if we can provide some
stability of the fd value across a whole SSL connection. This is
problematic because an engine has no concept of an SSL connection.
This commit refactors things to introduce an ASYNC_WAIT_CTX which acts as a
proxy for an SSL connection down at the engine layer.
Reviewed-by: Richard Levitte <levitte@openssl.org>
VisualStudio 2015 has a bug where an internal compiler error was occurring.
By reordering the DEFINE_STACK_OF declarations for SSL_CIPHER and SSL_COMP
until after the ssl3.h include everything seems ok again.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
mkdef.pl was issuing the following error:
Use of uninitialized value within %tag in numeric eq (==) at
util/mkdef.pl line 560, <IN> line 92
This was because it was treating a __cplusplus "#ifdef" check as a "tag"
but then skipping over the corresponding "#endif". Therefore after
processing a file it still had "left over" tags from processing the
previous file. It was also getting confused by "#if" checks that didn't
match is pre-defined styles.
Reviewed-by: Richard Levitte <levitte@openssl.org>
The SRP user database lookup method SRP_VBASE_get_by_user had confusing
memory management semantics; the returned pointer was sometimes newly
allocated, and sometimes owned by the callee. The calling code has no
way of distinguishing these two cases.
Specifically, SRP servers that configure a secret seed to hide valid
login information are vulnerable to a memory leak: an attacker
connecting with an invalid username can cause a memory leak of around
300 bytes per connection.
Servers that do not configure SRP, or configure SRP but do not configure
a seed are not vulnerable.
In Apache, the seed directive is known as SSLSRPUnknownUserSeed.
To mitigate the memory leak, the seed handling in SRP_VBASE_get_by_user
is now disabled even if the user has configured a seed.
Applications are advised to migrate to SRP_VBASE_get1_by_user. However,
note that OpenSSL makes no strong guarantees about the
indistinguishability of valid and invalid logins. In particular,
computations are currently not carried out in constant time.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Because we're requiring Perl 5.10.0 and the 'parent' didn't appear
before Perl 5.10.1, we need to resort to the older parent module
declaration style, modifying @ISA.
Reviewed-by: Andy Polyakov <appro@openssl.org>
Until now, the engines in engines/ were only built as dynamicaly
loadable ones if shared libraries were built.
We not dissociate the two and can build dynamicaly loadable engines
even if we only build static libcrypto and libssl. This is controlled
with the option (enable|disable|no)-static-engine, defaulting to
no-static-engine.
Note that the engines in crypto/engine/ (dynamic and cryptodev) will
always be built into libcrypto.
Reviewed-by: Rich Salz <rsalz@openssl.org>
This takes us away from the idea that we know exactly how our static
libraries are going to get used. Instead, we make them available to
build shareable things with, be it other shared libraries or DSOs.
On the other hand, we also have greater control of when the shared
library cflags. They will never be used with object files meant got
binaries, such as apps/openssl or test/test*.
With unified, we take this a bit further and prepare for having to
deal with extra cflags specifically to be used with DSOs (dynamic
engines), libraries and binaries (applications).
Reviewed-by: Rich Salz <rsalz@openssl.org>
Adapted from BoringSSL. Added a test.
The extension parsing code is already attempting to already handle this for
some individual extensions, but it is doing so inconsistently. Duplicate
efforts in individual extension parsing will be cleaned up in a follow-up.
Reviewed-by: Stephen Henson <steve@openssl.org>
All those flags existed because we had all the dependencies versioned
in the repository, and wanted to have it be consistent, no matter what
the local configuration was. Now that the dependencies are gone from
the versioned Makefile.ins, it makes much more sense to use the exact
same flags as when compiling the object files.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Add -DBIO_DEBUG to --strict-warnings.
Remove comments about outdated debugging ifdef guards.
Remove md_rand ifdef guarding an assert; it doesn't seem used.
Remove the conf guards in conf_api since we use OPENSSL_assert, not assert.
For pkcs12 stuff put OPENSSL_ in front of the macro name.
Merge TLS_DEBUG into SSL_DEBUG.
Various things just turned on/off asserts, mainly for checking non-NULL
arguments, which is now removed: camellia, bn_ctx, crypto/modes.
Remove some old debug code, that basically just printed things to stderr:
DEBUG_PRINT_UNKNOWN_CIPHERSUITES, DEBUG_ZLIB, OPENSSL_RI_DEBUG,
RL_DEBUG, RSA_DEBUG, SCRYPT_DEBUG.
Remove OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL.
Reviewed-by: Richard Levitte <levitte@openssl.org>
mk1mf was wondering about the options no-heartbeats and
no-crypto-mdebug-backtrace, so we add option hooks them. They only
need to become OPENSSL_NO_ macros in opensslconf.h, so nothing
additional needs to be done.
Also, add "-DOPENSSL_PIC" when shared libraries are produced.
Reviewed-by: Andy Polyakov <appro@openssl.org>
Three header files from crypto/include/internal were used by
util/mkdef.pl. This should never be needed. Some test program used
these, which made it a valid reason at the time to make the some
internal symbols public in the shared libraries, but that's not the
case any more.
However, to be able to link libssl.so, some symbols found in
include/internal headers still need to be made public.
Reviewed-by: Andy Polyakov <appro@openssl.org>
While IO::Socket::IP is a core perl module (since Perl v5.19.8, or so
says corelist), IO::Socket::INET6 has been around longer, is said to
be more widely deployed, and most importantly, seems to have less bugs
hitting us. We therefore prefer IO::Socket::INET6, and only fall back
to IO::Socket::IP if the former doesn't exist on the local system.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
INSTALL_PREFIX is a confusing name, as there's also --prefix.
Instead, tag along with the rest of the open source world and adopt
the Makefile variable DESTDIR to designate the desired staging
directory.
The Configure option --install_prefix is removed, the only way to
designate a staging directory is with the Makefile variable (this is
also implemented for VMS' descrip.mms et al).
Reviewed-by: Rich Salz <rsalz@openssl.org>
Once upon a time, there was chop, which somply chopped off the last
character of $_ or a given variable, and it was used to take off the
EOL character (\n) of strings.
... but then, you had to check for the presence of such character.
So came chomp, the better chop which checks for \n before chopping it
off. And this worked well, as long as Perl made internally sure that
all EOLs were converted to \n.
These days, though, there seems to be a mixture of perls, so lines
from files in the "wrong" environment might have \r\n as EOL, or just
\r (Mac OS, unless I'm misinformed).
So it's time we went for the more generic variant and use s|\R$||, the
better chomp which recognises all kinds of known EOLs and chops them
off.
A few chops were left alone, as they are use as surgical tools to
remove one last slash or one last comma.
NOTE: \R came with perl 5.10.0. It means that from now on, our
scripts will fail with any older version.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Trouble is that LINK variable assignment in make-file interferes with
LINK environment variable, which can be used to modify Microsoft's
LINK.EXE behaviour.
RT#4289
Reviewed-by: Richard Levitte <levitte@openssl.org>
With this, Cygwin and Mingw builds stand a much better chance to be
able to build outside of the source tree with the unified build.
Reviewed-by: Rich Salz <rsalz@openssl.org>
The old building scripts get removed, they are hopelessly gone in bit
rot by now.
Also remove the old symbol hacks. They were needed needed to shorten
some names to 31 characters, and to resolve other symbol clashes.
Because we now compile with /NAMES=(AS_IS,SHORTENED), this is no
longer required.
Reviewed-by: Rich Salz <rsalz@openssl.org>
As part of this, change util/mkdef.pl to stop adding libraries to
depend on in its output. mkdef.pl should ONLY output a symbol
vector.
Because symbol names can't be longer than 31 characters, we use the
compiler to shorten those that are longer down to 23 characters plus
an 8 character CRC. To make sure users of our header files will pick
up on that automatically, add the DEC C supported extra headers files
__decc_include_prologue.h and __decc_include_epilogue.h.
Furthermore, we add a config.com, so VMS people can configure just as
comfortably as any Unix folks, thusly:
@config
Reviewed-by: Rich Salz <rsalz@openssl.org>
Under certain conditions, one might not want to output certain
sections of a template file. This adds the functions output_off() and
output_on(), reachable inside the templates. And example usage in a
Makefile template could be this:
@ : {- output_off() if $config{no_shared}; "" -}
... lines dealing with shared libraries
@ : {- output_on() -}
Reviewed-by: Rich Salz <rsalz@openssl.org>
This option disables automatic loading of the crypto/ssl error strings in
order to keep statically linked executable file size down
Reviewed-by: Richard Levitte <levitte@openssl.org>
This commit provides the basis and core code for an auto initialisation
and deinitialisation framework for libcrypto and libssl. The intention is
to remove the need (in many circumstances) to call explicit initialise and
deinitialise functions. Explicit initialisation will still be an option,
and if non-default initialisation is needed then it will be required.
Similarly for de-initialisation (although this will be a lot easier since
it will bring all de-initialisation into a single function).
Reviewed-by: Richard Levitte <levitte@openssl.org>
util/mkdef.pl and Makefile.shared needs to know about the source and
the build directories.
Additionally, Makefile.shared needs to know how to build shared
libraries in a directory other than the current one.
Reviewed-by: Ben Laurie <ben@openssl.org>
This works on Linux with Make already, and allows running only specified
tests.
Reviewed-by: Ben Laurie <ben@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
The DTLSv1_listen function exposed details of the underlying BIO
abstraction and did not properly allow for IPv6. This commit changes the
"peer" argument to be a BIO_ADDR and makes it a first class function
(rather than a ctrl) to ensure proper type checking.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Add no-async option to Configure that forces ASYNC_NULL.
Related to RT1979
An embedded system or replacement C library (e.g. musl or uClibc)
may not support the *context APIs that are needed for async operation.
Compiles with musl. Ran unit tests, async tests skipped as expected.
Signed-off-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
When connecting to "localhost" the Proxy's choice of client address
family may not match the server's choice address family. Without
MultiHomed => 1, the proxy may try the wrong address family first,
and give up without trying the other.
Reviewed-by: Richard Levitte <levitte@openssl.org>
This makes use of TLSProxy, which was expanded to use IO::Socket::IP
(which is a core perl module) or IO::Socket::INET6 (which is said to
be more popular) instead IO::Socket::INET if one of them is installed.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
CRIME protection: disable compression by default, even if OpenSSL is
compiled with zlib enabled. Applications can still enable compression by
calling SSL_CTX_clear_options(ctx, SSL_OP_NO_COMPRESSION), or by using
the SSL_CONF library to configure compression. SSL_CONF continues to
work as before:
SSL_CONF_cmd(ctx, "Options", "Compression") enables compression.
SSL_CONF_cmd(ctx, "Options", "-Compression") disables compression (now
no-op by default).
The command-line switch has changed from -no_comp to -comp.
Reviewed-by: Rich Salz <rsalz@openssl.org>
New functions to return internal pointer for order and cofactor. This
avoids the need to allocate a new BIGNUM which to copy the value to.
Simplify code to use new functions.
Reviewed-by: Rich Salz <rsalz@openssl.org>
Remove depend hacks from demos/engines.
Remove clean-depend; just call makedepend (or $CC -M) and use that.
Reviewed-by: Richard Levitte <levitte@openssl.org>
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>
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>
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>
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>
For this adaptation, the variables $options and $version needed to
move to %config in Configure, and why not move all other variables
holding diverse version numbers at the same time?
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
For our own convenience, we need a mechanism to be able to fall back
on bundled Perl modules. It's a minimal package that's called like
this:
use with_fallback qw(Module1 Module2 ...);
For each module, it will try to require them from the system
installation, and failing that, it will temporarly add external/perl
and try to require transfer::{ModuleName}. It requires that each
bundled Perl modules is accompanied by a small transfer module
(external/perl/transfer/ModuleName.pm in our example) that knows
exactly what to load.
Reviewed-by: Rich Salz <rsalz@openssl.org>
apps/CA.pl and tools/c_rehash are built from template files. So far,
this was done by Configure, which created its own problems as it
forced everyone to reconfigure just because one of the template files
had changed.
Instead, have those files created as part of the normal build in apps/
and in tools/.
Furthermore, this prepares for a future where Configure may produce
entirely other build files than Makefile, and the latter can't be
guaranteed to be the holder of all information for other scripts.
Instead, configdata.pm (described below) becomes the center of
configuration information.
This introduces a few new things:
%config a hash table to hold all kinds of configuration data
that can be used by any other script.
configdata.pm a perl module that Configure writes. It currently
holds the hash tables %config and %target.
util/dofile.pl a script that takes a template on STDIN and outputs
the result after applying configuration data on it.
It's supposed to be called like this:
perl -I$(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>
--prefix is now exclusively used for software and manual installation.
--openssldir is not exclusively used as a default location for certs,
keys and the default openssl.cnf.
This change is made to bring clarity, to have the two less
intertwined, and to be more compatible with the usual ways of software
installation.
Please change your habits and scripts to use --prefix rather than
--openssldir for installation location now.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
The GOST engine is now out of date and is removed by this commit. An up
to date GOST engine is now being maintained in an external repository.
See:
https://wiki.openssl.org/index.php/Binaries
Reviewed-by: Richard Levitte <levitte@openssl.org>
