Add BN_GENCB_get_arg.
bind uses this function.
Change-Id: I97ba86d9f75597bff125ae0b56952effc397e6b8
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/53010
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Bob Beck <bbe@google.com>
Commit-Queue: Bob Beck <bbe@google.com>
diff --git a/crypto/fipsmodule/bn/prime.c b/crypto/fipsmodule/bn/prime.c
index 0c5edfe..0578558 100644
--- a/crypto/fipsmodule/bn/prime.c
+++ b/crypto/fipsmodule/bn/prime.c
@@ -386,6 +386,8 @@
return callback->callback(event, n, callback);
}
+void *BN_GENCB_get_arg(const BN_GENCB *callback) { return callback->arg; }
+
int BN_generate_prime_ex(BIGNUM *ret, int bits, int safe, const BIGNUM *add,
const BIGNUM *rem, BN_GENCB *cb) {
BIGNUM *t;
diff --git a/include/openssl/bn.h b/include/openssl/bn.h
index d9491a9..9abccaf 100644
--- a/include/openssl/bn.h
+++ b/include/openssl/bn.h
@@ -681,6 +681,9 @@
// the callback, or 1 if |callback| is NULL.
OPENSSL_EXPORT int BN_GENCB_call(BN_GENCB *callback, int event, int n);
+// BN_GENCB_get_arg returns |callback->arg|.
+OPENSSL_EXPORT void *BN_GENCB_get_arg(const BN_GENCB *callback);
+
// BN_generate_prime_ex sets |ret| to a prime number of |bits| length. If safe
// is non-zero then the prime will be such that (ret-1)/2 is also a prime.
// (This is needed for Diffie-Hellman groups to ensure that the only subgroups
