20 Commits

Author SHA1 Message Date
Tomas Mraz
a8275fbc4a decoder_process: data_structure can be NULL
Check it before dereferencing.

Fixes #14530

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/14531)
2021-03-16 11:25:18 +01:00
Matt Caswell
8020d79b40 Update copyright year
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14512)
2021-03-11 13:27:36 +00:00
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
Shane Lontis
7a45d51ce3 Use BIO_f_readbuffer() in the decoder to support stdin.
Fixes #13185
Fixes #13352

Removed the existing code in file_store that was trying to figure out the
input type.

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14407)
2021-03-11 07:57:36 +10:00
Dr. David von Oheimb
39a61e69b8 OSSL_STORE: restore diagnostics on decrypt error; provide password hints
Fixes #13493

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13525)
2021-03-04 08:54:09 +01:00
Richard Levitte
57acc56bdc DECODER: Add better tracing of the chain walking process
Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14233)
2021-02-20 21:15:12 +01:00
Richard Levitte
acf497b53b DECODER: Use the data structure from the last decoder to select the next
Any decoder can now also declare the name of the data structure for
the object it decoded in the OSSL_PARAM array they pass back to the
decoding process.  The decoding process will use that as another
criterion to select the next decoder in the chain to consider.

Together with declaring the data type, this becomes a means to refine
how the decoded data is treated along the chain.

Fixes #13539

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14233)
2021-02-20 21:15:12 +01:00
Richard Levitte
de5008a407 DECODER: Add tracing
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13248)
2020-11-11 11:42:06 +01:00
Richard Levitte
ebfdb63d96 DECODER: Add support for specifying the outermost input structure
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13248)
2020-11-11 11:42:06 +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
Richard Levitte
25cf949fc6 ENCODER / DECODER: Add functions to encode/decode to/from a buffer
This adds OSSL_ENCODER_to_data() and OSSL_DECODER_from_data().  These
functions allow fairly simple rewrites of type-specific i2d and d2i
calls.

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13094)
2020-10-10 20:23:39 +02:00
Matt Caswell
df38dcfcd5 Fix the decoder start type handling
If an explicit decoder start type was provided then it wasn't being
handled correctly in all cases. Specifically if a PEM start type was
provided then the decoder would fail.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/13050)
2020-10-08 12:31:00 +01:00
Richard Levitte
ecadfdadde DECODER: Handle abstract object data type
The PEM->DER decoder passes the data type of its contents, something
that decoder_process() ignored.

On the other hand, the PEM->DER decoder passed nonsense.

Both issues are fixed here.

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13060)
2020-10-04 12:58:41 +02:00
Dr. David von Oheimb
66066e1bba Prune low-level ASN.1 parse errors from error queue in der2key_decode() etc.
Also adds error output tests on loading key files with unsupported algorithms to 30-test_evp.t

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/13023)
2020-09-30 20:49:44 +02:00
Richard Levitte
48b62fb33a DECODER: Some cleanups, and aligning with OSSL_ENCODER
Mostly source nits, but also removing a couple of OSSL_DECODER_PARAM
macros that are never used or even make sense.

Also, some function names weren't quite consistent.  They were made a
bit more consistent in the OSSL_ENCODER API, now we bring that back to
OSSL_DECODER.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12873)
2020-09-20 17:31:54 +02:00
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
Richard Levitte
bd7a6f16eb OSSL_ENCODER / OSSL_DECODER post-rename cleanup
There are a few remaining spots where 'deser' wasn't changed to 'decoder'

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/12587)
2020-09-03 17:48:31 +02:00
Richard Levitte
a517edec03 CORE: Generalise internal pass phrase prompter
The pass phrase prompter that's part of OSSL_ENCODER and OSSL_DECODER
is really a passphrase callback bridge between the diverse forms of
prompters that exist within OpenSSL: pem_password_cb, ui_method and
OSSL_PASSPHRASE_CALLBACK.

This can be generalised, to be re-used by other parts of OpenSSL, and
to thereby allow the users to specify whatever form of pass phrase
callback they need, while being able to pass that on to other APIs
that are called internally, in the form that those APIs demand.

Additionally, we throw in the possibility to cache pass phrases during
a "session" (we leave it to each API to define what a "session" is).
This is useful for any API that implements discovery and therefore may
need to get the same password more than once, such as OSSL_DECODER and
OSSL_STORE.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12512)
2020-08-24 10:02:25 +02:00
Richard Levitte
14c8a3d118 CORE: Define provider-native abstract objects
This is placed as CORE because the core of libcrypto is the authority
for what is possible to do and what's required to make these abstract
objects work.

In essence, an abstract object is an OSSL_PARAM array with well
defined parameter keys and values:

-   an object type, which is a number indicating what kind of
    libcrypto structure the object in question can be used with.  The
    currently possible numbers are defined in <openssl/core_object.h>.
-   an object data type, which is a string that indicates more closely
    what the contents of the object are.
-   the object data, an octet string.  The exact encoding used depends
    on the context in which it's used.  For example, the decoder
    sub-system accepts any encoding, as long as there is a decoder
    implementation that takes that as input.  If central code is to
    handle the data directly, DER encoding is assumed. (*)
-   an object reference, also an octet string.  This octet string is
    not the object contents, just a mere reference to a provider-native
    object. (**)
-   an object description, which is a human readable text string that
    can be displayed if some software desires to do so.

The intent is that certain provider-native operations (called X
here) are able to return any sort of object that belong with other
operations, or an object that has no provider support otherwise.

(*) A future extension might be to be able to specify encoding.

(**) The possible mechanisms for dealing with object references are:

-   An object loading function in the target operation.  The exact
    target operation is determined by the object type (for example,
    OSSL_OBJECT_PKEY implies that the target operation is a KEYMGMT)
    and the implementation to be fetched by its object data type (for
    an OSSL_OBJECT_PKEY, that's the KEYMGMT keytype to be fetched).
    This loading function is only useful for this if the implementations
    that are involved (X and KEYMGMT, for example) are from the same
    provider.

-   An object exporter function in the operation X implementation.
    That exporter function can be used to export the object data in
    OSSL_PARAM form that can be imported by a target operation's
    import function.  This can be used when it's not possible to fetch
    the target operation implementation from the same provider.

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12512)
2020-08-24 10:02:25 +02:00
Richard Levitte
ece9304c96 Rename OSSL_SERIALIZER / OSSL_DESERIALIZER to OSSL_ENCODE / OSSL_DECODE
Fixes #12455

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12660)
2020-08-21 09:23:58 +02:00