Conscrypt will need these functions. Also fix a bug in
X509_get_extension_flags's error-handling. While I'm here, add
X509_CRL_get0_extensions for completeness. Nothing uses this yet, but
this could later be an alternative to avoid Conscrypt's mess with
templates.
Change-Id: I9393b75fcf53346535e6a4712355be081baa630d
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/42744
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Although extensions are accessible via X509_get_ext_d2i, OpenSSL's X509
object carries caches of a number of extensions. OpenSSL added accessors
for some of these in 1.1.0 (X509_get0_subject_key_id) and 1.1.1d (the
others), so mirror this. Note that, although they look like simpler
getters, the error-handling is tricky.
(For now I'm just looking to mirror OpenSSL's accessors and finally make
the structs opaque. Go's x509.Certificate structure also recognizes a
collection of built-in certificate fields, but error-handling is in the
parser. That could be one path out of this cached fields mess, at the
cost of making the parse operation do more work.)
Change-Id: I051512aa296bd103229ba6eb2b5639d79e9eb63f
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/42624
Reviewed-by: Adam Langley <agl@google.com>
Actually making crypto/asn1 and crypto/x509 const-correct will be a tall
order, between all the hidden caches, non-const ASN.1 macros, and
ambiguity between mutable and immutable getters. But upstream
const-corrected a number of things, so align with them. (In particular,
it is not currently possible to usefully use a non-const X509_NAME.)
I think I've gotten most of x509.h. I started going through x509v3.h,
but all the conf bits take non-const char* pointers, which shows up in
the public (but probably unused) X509V3_CONF_METHOD, so I've left it
alone in this CL.
For some reason, OpenSSL made X509_get_subject_name a const-to-non-const
function but kept X509_get_serialNumber uniformly non-const while adding
a uniformly const X509_get0_serialNumber. I've just mirrored this for
compatibility's sake.
Change-Id: Ia33a7576165cf2da5922807fc065f1f114b0f84c
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/42584
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
David Benjamin
Adam Langley