Commit Graph

105 Commits

Author SHA1 Message Date
Matt Caswell
97abae6a9d Add various OBJ functions as callbacks
This enables providers to register new OIDs in the same libcrypto instance
as is used by the application.

Fixes #15624

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Tim Hudson <tjh@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15681)
2021-06-16 15:04:50 +10:00
Tomas Mraz
6cf811e867 ossl_provider_set_module_path: Prevent potential UAF
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15680)
2021-06-11 08:52:14 +10:00
Pauli
71653965b3 crypto: remove TODOs
Fixes #15451

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15539)
2021-06-02 16:30:15 +10:00
Tomas Mraz
c4e9167437 Rename also the OSSL_PROVIDER_name() function
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15405)
2021-06-01 12:43:57 +02:00
Matt Caswell
c9732f0953 Fix a memleak in the FIPS provider
If the DRBG is used within the scope of the FIPS OSSL_provider_init
function then it attempts to register a thread callback via c_thread_start.
However the implementation of c_thread_start assumed that the provider's
provctx was already present. However because OSSL_provider_init is still
running it was actually NULL. This means the thread callback fail to work
correctly and a memory leak resulted.

Instead of having c_thread_start use the provctx as the callback argument
we change the definition of c_thread_start to have an explicit callback
argument to use.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15278)
2021-05-24 09:39:15 +10:00
Matt Caswell
b195677073 Update documentation for global properties mirroring
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15242)
2021-05-20 09:35:41 +01:00
Matt Caswell
447588b69a Add a callback for providers to know about global properties changes
Where a child libctx is in use it needs to know what the current global
properties are.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15242)
2021-05-20 09:32:40 +01:00
Pauli
634da876e0 provider: fix coverity 1484884: uninitialised lock use
This actually fixes a more subtle problem that wasn't detected which could
cause memory leaks.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/15300)
2021-05-18 13:24:41 +10:00
Matt Caswell
36a89c0439 Init the child providers immediately on creation of the child libctx
We were deferring the initial creation of the child providers until the
first fetch. This is a carry over from an earlier iteration of the child
lib ctx development and is no longer necessary. In fact we need to init
the child providers immediately otherwise not all providers quite init
correctly.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15270)
2021-05-15 10:33:42 +01:00
Matt Caswell
c1fb5e072f Exclude child provider code from the FIPS module
We don't need the child provider code in the FIPS module so we exclude
it.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)
2021-05-11 15:03:13 +01:00
Matt Caswell
abaa2dd298 Don't convert pre-existing providers into children
If a provider explicitly loads another provider into a child libctx where
it wasn't previously loaded then we don't start treating it like a child
if the parent libctx subsequently loads the same provider.

Fixes #14925

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)
2021-05-11 15:03:13 +01:00
Matt Caswell
8c62707565 Add support for child provider to up_ref/free their parent
If the ref counts on a child provider change, then this needs to be
reflected in the parent so we add callbacks to do this.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)
2021-05-11 14:59:43 +01:00
Matt Caswell
7b88c184b6 Register callbacks with core for child provider creation/deletion
By adding callbacks to the core this will enable (in future commits) the
ability to add/remove child providers as the providers are added/removed
from the parent libctx.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)
2021-05-11 14:59:43 +01:00
Matt Caswell
f12a5690de Add the concept of a child OSSL_LIB_CTX
Add a child OSSL_LIB_CTX that will mirror the providers loaded into the
parent libctx. This is useful for providers that want to use algorithms
from other providers and just need to inherit the providers used by the
application.

Fixes #14925

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)
2021-05-11 14:56:55 +01:00
Matt Caswell
a16d21744d Add the ability for ex_data to have a priority
Where an object has multiple ex_data associated with it, then we free that
ex_data in order of priority (high priority first).

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)
2021-05-11 14:56:55 +01:00
Matt Caswell
d07af736de Only load the config file into the default libctx if necessary
There is no need to load providers from the config file into the default
libctx, if the current libctx that we are using isn't the default libctx.
This avoids some deadlock situations.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14991)
2021-05-11 14:56:55 +01:00
Pauli
4ed1f0bc70 provider: use a read lock when looking for a provider
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15042)
2021-05-07 23:53:18 +10:00
Pauli
0090e50890 provider: flush the store cache when providers are loaded/unloaded.
When the providers change, the method cache needs to be flushed.  This also
impacts the cache is full partial flushes and the algorithm flushing by ID.

A new function is introduced to clear all of the operation bits in all
providers in a library context.

Fixes #15032

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15042)
2021-05-07 23:53:18 +10:00
Matt Caswell
2d5695016d Properly protect access to the provider flag_activated field
This was not always locked when it should be.

Fixes #15005

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15010)
2021-04-28 15:51:10 +01:00
Pauli
860ecfd700 property: check return values from the property locking calls.
A failure to obtain a lock would have resulted in much badness, now it results
in a failure return.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14773)
2021-04-08 17:46:35 +10:00
Sahana Prasad
86522324d2 Adds a new lock to read default_path and uses a strdup() on default_path before using it
Fixes #14483
Signed-off-by: Sahana Prasad <sahana@redhat.com>

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14650)
2021-04-07 18:08:14 +10:00
Matt Caswell
ee067bc066 Ensure we deregister thread handlers even after a failed init
If we attempt to init a provider but that init fails, then we should
still deregister any thread handlers. The provider may have failed after
these were registered.

Fixes #13338

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14576)
2021-03-18 12:00:42 +00:00
Shane Lontis
c8830891e6 Add ossl_provider symbols
Partial fix for #12964

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14473)
2021-03-18 17:52:38 +10:00
Tomas Mraz
2217d4c9cc core_get_libctx: use assert() instead of ossl_assert()
Using ossl_assert makes the build fail with --strict-warnings
because the ossl_assert is declared with warn_unused_result.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14571)
2021-03-16 13:15:18 +01:00
Tomas Mraz
a23deef281 provider_core: Remove two TODO 3.0
We need to keep the check for prov == NULL in ossl_provider_libctx
but it is not needed in core_get_libctx as there it can happen only when
there is a serious coding error in a third party provider and returning
NULL as libctx would be seriously wrong as that has a special meaning.

The second TODO is valid but not something that is relevant
for 3.0. Change it into a normal comment.

Fixes #14377

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14535)
2021-03-16 11:36:47 +01:00
Rich Salz
cd3f8c1b11 Always check CRYPTO_LOCK_{read,write}_lock
Some functions that lock things are void, so we just return early.

Also make ossl_namemap_empty return 0 on error.  Updated the docs, and added
some code to ossl_namemap_stored() to handle the failure, and updated the
tests to allow for failure.

Fixes: #14230

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14238)
2021-03-14 15:33:34 +10:00
Pauli
8f08957674 rename ossl_provider_forall_loaded to ossl_provider_doall_activated
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/14489)
2021-03-12 09:14:00 +10:00
Pauli
7bbfbc8239 core: modify ossl_provider_forall_loaded() to avoid locking for the callbacks
To avoid recursive lock issues, a copy is taken of the provider list and
the callbacks are made without holding the store lock.

Fixes #14251

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/14489)
2021-03-12 09:14:00 +10:00
Pauli
141cc94e44 Add a real type for OSSL_CORE_BIO which is distinct from and not castable to BIO
Providers (particularly the FIPS provider) needs access to BIOs from libcrypto.
Libcrypto is allowed to change the internal format of the BIO structure and it
is still expected to work with providers that were already built.  This means
that the libcrypto BIO must be distinct from and not castable to the provider
side OSSL_CORE_BIO.

Unfortunately, this requirement was broken in both directions.  This fixes
things by forcing the two to be different and any casts break loudly.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14419)
2021-03-11 09:25:57 +10:00
Richard Levitte
c2ec2bb7c1 Make provider provider_init thread safe, and flag checking/setting too
provider_init() makes changes in the provider structure, and needs a
bit of protection to ensure that doesn't happen concurrently with race
conditions.

This also demands a bit of protection of the flags, since they are
bits and presumably occupy the same byte in memory.

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14354)
2021-03-04 16:09:02 +01:00
Richard Levitte
d60a8e0a23 Make ossl_provider_disable_fallback_loading() thread safe
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14354)
2021-03-04 16:09:02 +01:00
Pauli
b0001d0cf2 provider: add an unquery function to allow providers to clean up.
Without this, a provider  has no way to know that an application
has finished with the array it returned earlier.  A non-caching provider
requires this information.

Fixes #12974

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12974)
2021-02-24 21:24:36 +10:00
Pauli
299f5ff3b5 provider: add option to load a provider without disabling the fallbacks.
Add an argument to PROVIDER_try_load() that permits a provider to be
loaded without changing the fallback status.  This is useful when an
additional provider needs to be loaded without perturbing any other setup.
E.g. adding mock providers as part of unit testing.

Reviewed-by: Tim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13652)
2021-02-23 23:24:41 +10:00
Pauli
7dce37e2ec Prov: add an option to force provider fetches to not be cached.
If the macro OSSL_FORCE_NO_CACHE_FETCH is defined, no provider will have its
fetches cached.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14126)
2021-02-12 12:28:55 +10:00
Richard Levitte
4333b89f50 Update copyright year
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13999)
2021-01-28 13:54:57 +01:00
Matt Caswell
7dd2cb5693 Fix an issue in provider_activate_fallbacks()
The above function was running while holding the store lock with a read
lock. Unfortunately it actually modifies the store, so a write lock is
required instead.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13660)
2021-01-14 17:30:46 +00:00
Matt Caswell
c25a1524aa Lock the provider operation_bits
The provider operation_bits array can see concurrent access by multiple
threads and can be reallocated at any time. Therefore we need to ensure
that it is appropriately locked.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13660)
2021-01-14 17:30:46 +00:00
Richard Levitte
390f9bad69 CORE: Separate OSSL_PROVIDER activation from OSSL_PROVIDER reference
This introduces a separate activation counter, and the function
ossl_provider_deactivate() for provider deactivation.

Something to be noted is that if the reference count goes down to
zero, we don't care if the activation count is non-zero (i.e. someone
forgot to call ossl_provider_deactivate()).  Since there are no more
references to the provider, it doesn't matter.
The important thing is that deactivation doesn't remove the provider
as long as there are references to it, for example because there are
live methods associated with that provider, but still makes the
provider unavailable to create new methods from.

Fixes #13503
Fixes #12157

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13661)
2020-12-17 12:02:08 +01:00
Pauli
03bede0cc8 rand: move the entropy source out of the FIPS provider
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/13226)
2020-11-20 08:24:21 +10:00
Richard Levitte
105d01f1eb crypto/provider_core.c: fix a couple of faulty ERR_raise_data() calls
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13318)
2020-11-13 09:35:31 +01:00
Richard Levitte
9311d0c471 Convert all {NAME}err() in crypto/ to their corresponding ERR_raise() call
This includes error reporting for libcrypto sub-libraries in surprising
places.

This was done using util/err-to-raise

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13318)
2020-11-13 09:35:02 +01:00
Dr. Matthias St. Pierre
a829b735b6 Rename some occurrences of 'library_context' and 'lib_ctx' to 'libctx'
This change makes the naming more consistent, because three different terms
were used for the same thing. (The term libctx was used by far most often.)

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12621)
2020-10-15 12:00:21 +01:00
Dr. Matthias St. Pierre
b425001010 Rename OPENSSL_CTX prefix to OSSL_LIB_CTX
Many of the new types introduced by OpenSSL 3.0 have an OSSL_ prefix,
e.g., OSSL_CALLBACK, OSSL_PARAM, OSSL_ALGORITHM, OSSL_SERIALIZER.

The OPENSSL_CTX type stands out a little by using a different prefix.
For consistency reasons, this type is renamed to OSSL_LIB_CTX.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12621)
2020-10-15 11:59:53 +01:00
Nicola Tuveri
993c437dbd Fix segfault on missing provider_query_operation()
A provider without `provider_query_operation()` is admittedly quite
useless, yet technically the base provider functions are not mandatory
according to our documentation.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13058)
2020-10-03 14:38:22 +03:00
Richard Levitte
63f187cfed STORE: Add a built-in 'file:' storemgmt implementation (loader)
This replaces the older 'file:' loader that is now an engine.

It's still possible to use the older 'file:' loader by explicitly
using the engine, and tests will remain for it as long as ENGINEs are
still supported (even through deprecated).

To support this storemgmt implementation, a few internal OSSL_DECODER
modifications are needed:

-   An internal function that implements most of
    OSSL_DECODER_CTX_new_by_EVP_PKEY(), but operates on an already
    existing OSSL_DECODER_CTX instead of allocating a new one.
-   Allow direct creation of a OSSL_DECODER from an OSSL_ALGORITHM.
    It isn't attached to any provider, and is only used internally, to
    simply catch any DER encoded object to be passed back to the
    object callback with no further checking.  This implementation
    becomes the last resort decoder, when all "normal"
    decodation attempts (i.e. those that are supposed to result
    in an OpenSSL object of some sort) have failed.

Because file_store_attach() uses BIO_tell(), we must also support
BIO_ctrl() as a libcrypto upcall.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12587)
2020-09-03 17:48:32 +02:00
Todd Short
2b748d722b Fix use of OPENSSL_realloc in provider
Fix OPENSSL_realloc failure case; `provider->operation_bits` memory
is lost when `OPENSSL_realloc()` returns NULL.

`operation_bits_sz` is never set to the length of the allocated array.
This means that operation_bits is always reallocated in
`ossl_provider_set_operation_bit()`, possibly shrinking the array.
In addition, it means that the `memset()` always zeros out the
whole reallocated array, not just the new part. Also, because
`operation_bits_sz` is always zero, the value of `*result` in
`ossl_provider_test_operation_bit()` will always be zero.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/12760)
2020-09-02 15:21:11 -07:00
Pauli
ebe3f24b3d provider: disable fall-backs if OSSL_PROVIDER_load() fails.
If an attempt is made to load a provider and it fails, the fall-back mechanism
should be disabled to prevent the user getting some weird happening.  E.g. a
failure to load the FIPS provider should not allow the default to load as a
fall-back.

The OSSL_PROVIDER_try_load() call has been added, to allow a provider to be
loaded without disabling the fall-back mechanism if it fails.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/12625)
2020-08-14 18:17:47 +10:00
Shane Lontis
04cb5ec0b7 Add 'on demand self test' and status test to providers
The default and legacy providers currently return 1 for status and self test checks.
Added test to show the 3 different stages the self test can be run (for installation, loading and on demand).

For the fips provider:
  - If the on demand self test fails, then any subsequent fetches should also fail. To implement this the
    cached algorithms are flushed on failure.
  - getting the self test callback in the fips provider is a bit complicated since the callback hangs off the core
    libctx (as it is set by the application) not the actual fips library context. Also the callback can be set at
    any time not just during the OSSL_provider_init() so it is calculated each time before doing any self test.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11752)
2020-08-09 18:06:52 +10:00
Richard Levitte
853ca12813 CORE: Add upcalls for BIO_gets() and BIO_puts()
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12410)
2020-07-24 16:32:01 +02:00
Shane Lontis
9f7bdcf37f Add ERR_raise() errors to fips OSSL_provider_init and self tests.
As the ERR_raise() is setup at this point returng a range of negative values for errors is not required.
This will need to be revisited if the code ever moves to running from the DEP.
Added a -config option to the fips install so that it can test if a fips module is loadable from configuration.
(The -verify option only uses the generated config, whereas -config uses the normal way of including the generated data via another config file).
Added more failure tests for the raised errors.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12346)
2020-07-21 16:30:02 +10:00