This is a misused function, as it was called during query cache flush,
when the provider operation bits were meant to record if methods for a
certain operation has already been added to the method store.
Fixes#18150
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18151)
We should stop receiving child callbacks if we're about to free up
the child libctx. Otherwise we can get callbacks when the libctx is half
freed up.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16980)
If a provider doesn't have any child providers then there is no need
to attempt to remove them - so we should not do so. This removes some
potentialy thread races.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16980)
These are legacy of older versions of the code and are currently not used
anywhere.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/16985)
If two threads both attempt to load the same provider at the same time,
they will first both check to see if the provider already exists. If it
doesn't then they will both then create new provider objects and call the
init function. However only one of the threads will be successful in adding
the provider to the store. For the "losing" thread we should still return
"success", but we should deinitialise and free the no longer required
provider object, and return the object that exists in the store.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15854)
These 2 functions have become so close to each other that they may as well
be just one function.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15854)
Update use_fallbacks to zero when we add a provider to the store rather
than when we activate it. Its only at the point that we add it to the store
that it is actually usable and visible to other threads.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15854)
Now that a provider is no longer put into the store until after it has
been activated we don't need flag_couldbechild any more. This flag was
used to indicate whether a provider was eligible for conversion into a
child provider or not. This was only really interesting for predefined
providers that were automatically created.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15854)
Rather than creating the provider, adding to the store and then activating
it, we do things the other way around, i.e. activate first and then add to
the store. This means that the activation should occur before other threads
are aware of the provider.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15854)
Previously we instantiated all the predefined providers at the point that
we create the provider store. Instead we move them to be instantiated as we
need them.
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15854)
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)
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)
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)
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)
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)
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)
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)
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)
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#13503Fixes#12157
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13661)
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)
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)
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)
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)
Provide a function to applications to query the capabilities that a
provider can perform.
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11914)
Implement a function which enables us to get hold of the provider ctx
for a loaded provider.
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/11834)
When a desired algorithm wasn't available, we didn't register anywhere
that an attempt had been made, with the result that next time the same
attempt was made, the whole process would be done again.
To avoid this churn, we register a bit for each operation that has
been queried in the libcrypto provider object, and test it before
trying the same query and method construction loop again.
If course, if the provider has told us not to cache, we don't register
this bit.
Fixes#11814
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11842)
Added an API to optionally set a self test callback.
The callback has the following 2 purposes
(1) Output information about the KAT tests.
(2) Allow the ability to corrupt one of the KAT's
The fipsinstall program uses the API.
Some KATS are not included in this PR since the required functionality did not yet exist in the provider.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10374)
Quite a few adaptations are needed, most prominently the added code
to allow provider based MACs.
As part of this, all the old information functions are gone, except
for EVP_MAC_name(). Some of them will reappear later, for example
EVP_MAC_do_all() in some form.
MACs by EVP_PKEY was particularly difficult to deal with, as they
need to allocate and deallocate EVP_MAC_CTXs "under the hood", and
thereby implicitly fetch the corresponding EVP_MAC. This means that
EVP_MACs can't be constant in a EVP_MAC_CTX, as their reference count
may need to be incremented and decremented as part of the allocation
or deallocation of the EVP_MAC_CTX. It may be that other provider
based EVP operation types may need to be handled in a similar manner.
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8877)
It was argued that names like SOMETHING_set_param_types were confusing,
and a rename has been proposed to SOMETHING_settable_params, and by
consequence, SOMETHING_get_param_types is renamed
SOMETHING_gettable_params.
This changes implements this change for the dispatched provider and
core functions.
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9591)
Previously we only loaded the config file by default for libssl. Now we do
it for libcrypto too.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9492)
Public function OSSL_PROVIDER_available() takes a library context and
a provider name, and returns 1 if it's available for use, i.e. if it's
possible to fetch implementations from it, otherwise 0.
Internal function ossl_provider_activated() returns 1 if the given
OSSL_PROVIDER is activated, otherwise 0.
To make this possible, the activation of fallbacks got refactored out
to a separate function, which ended up simplifying the code.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9398)
Common pattern is that the routines to increment the reference count
are called something_up_ref, not something_upref. Adapt
ossl_provider_upref() accordingly.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9293)
Instead of referencing the return size from the OSSL_PARAM structure, make the
size a field within the structure.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9135)
Some OSSL_PROVIDER getters took a non-const OSSL_PROVIDER parameter.
There's no reason to do so.
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/9054)
OSSL_provider_init() gets another output parameter, holding a pointer
to a provider side context. It's entirely up to the provider to
define the context and what it's being used for. This pointer is
passed back to other provider functions, typically the provider global
get_params and set_params functions, and also the diverse algorithm
context creators, and of course, the teardown function.
With this, a provider can be instantiated more than once, or be
re-loaded as the case may be, while maintaining instance state.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8848)
This configuration module supports a configuration structure pretty
much like the engine configuration module, i.e. something like this:
openssl_conf = openssl_init
[openssl_init]
providers = provider_section
[provider_section]
# Configure the provider named "foo"
foo = foo_section
# Configure the provider named "bar"
bar = bar_section
[foo_section]
# Override name given in the provider section
identity = myfoo
# The exact path of the module. This is platform specific
module_path = /opt/openssl/modules/foo.so
# Whether it should be automatically activated. Value is unimportant
activate = whatever
# Anything else goes as well, and becomes parameters that the
# provider can get
what = 1
# sub-sections will be followed as well
ever = ever_section
[ever_section]
cookie = monster
All the configurations in a provider section and its sub-sections
become parameters for the provider to get, i.e. the "foo" provider
will be able to get values for the following keys (with associated
values shown):
identity => myfoo
module_path => /opt/openssl/modules/foo.so
activate => whatever
what => 1
ever.cookie => monster
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8549)
Provider parameters are parameters set by the core that the provider
can retrieve. The primary use it to support making OpenSSL
configuration data available to the provider.
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8549)
To ensure that old applications aren't left without any provider, and
at the same time not forcing any default provider on applications that
know how to deal with them, we device the concept of fallback
providers, which are automatically activated if no other provider is
already activated.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8480)
The OSSL_PROVIDER is the core object involved in loading a provider
module, initialize a provider and do the initial communication of
provider wide and core wide dispatch tables.
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/8287)
