Make the curve compat APIs into real functions

The standard macro-based pattern does not work in bindgen because of
https://github.com/rust-lang/rust-bindgen/issues/2544

Change-Id: Ic2b92e779ade2ed55a627bba9c76f7df5c0f6136
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/61185
Reviewed-by: Bob Beck <bbe@google.com>
Commit-Queue: Bob Beck <bbe@google.com>
Auto-Submit: David Benjamin <davidben@google.com>

include/openssl/ssl.h

diff --git a/include/openssl/ssl.h b/include/openssl/ssl.h
index f8f696b..9f758ca 100644
--- a/include/openssl/ssl.h
+++ b/include/openssl/ssl.h
@@ -5256,16 +5256,7 @@
   SSL_R_TLSV1_ALERT_BAD_CERTIFICATE_HASH_VALUE
 #define SSL_R_TLSV1_CERTIFICATE_REQUIRED SSL_R_TLSV1_ALERT_CERTIFICATE_REQUIRED
 
-// The following symbols are compatibility aliases for equivalent functions that
-// use the newer "group" terminology. New code should use the new functions for
-// consistency, but we do not plan to remove these aliases.
-#define SSL_CTX_set1_curves SSL_CTX_set1_groups
-#define SSL_set1_curves SSL_set1_groups
-#define SSL_CTX_set1_curves_list SSL_CTX_set1_groups_list
-#define SSL_set1_curves_list SSL_set1_groups_list
-#define SSL_get_curve_id SSL_get_group_id
-#define SSL_get_curve_name SSL_get_group_name
-#define SSL_get_all_curve_names SSL_get_all_group_names
+// The following symbols are compatibility aliases for |SSL_GROUP_*|.
 #define SSL_CURVE_SECP224R1 SSL_GROUP_SECP224R1
 #define SSL_CURVE_SECP256R1 SSL_GROUP_SECP256R1
 #define SSL_CURVE_SECP384R1 SSL_GROUP_SECP384R1
@@ -5273,6 +5264,29 @@
 #define SSL_CURVE_X25519 SSL_GROUP_X25519
 #define SSL_CURVE_X25519_KYBER768_DRAFT00 SSL_GROUP_X25519_KYBER768_DRAFT00
 
+// SSL_get_curve_id calls |SSL_get_group_id|.
+OPENSSL_EXPORT uint16_t SSL_get_curve_id(const SSL *ssl);
+
+// SSL_get_curve_name calls |SSL_get_group_name|.
+OPENSSL_EXPORT const char *SSL_get_curve_name(uint16_t curve_id);
+
+// SSL_get_all_curve_names calls |SSL_get_all_group_names|.
+OPENSSL_EXPORT size_t SSL_get_all_curve_names(const char **out, size_t max_out);
+
+// SSL_CTX_set1_curves calls |SSL_CTX_set1_groups|.
+OPENSSL_EXPORT int SSL_CTX_set1_curves(SSL_CTX *ctx, const int *curves,
+                                       size_t num_curves);
+
+// SSL_set1_curves calls |SSL_set1_groups|.
+OPENSSL_EXPORT int SSL_set1_curves(SSL *ssl, const int *curves,
+                                   size_t num_curves);
+
+// SSL_CTX_set1_curves_list calls |SSL_CTX_set1_groups_list|.
+OPENSSL_EXPORT int SSL_CTX_set1_curves_list(SSL_CTX *ctx, const char *curves);
+
+// SSL_set1_curves_list calls |SSL_set1_groups_list|.
+OPENSSL_EXPORT int SSL_set1_curves_list(SSL *ssl, const char *curves);
+
 // TLSEXT_nid_unknown is a constant used in OpenSSL for
 // |SSL_get_negotiated_group| to return an unrecognized group. BoringSSL never
 // returns this value, but we define this constant for compatibility.
@@ -5444,6 +5458,7 @@
 #define SSL_CTX_sess_set_cache_size SSL_CTX_sess_set_cache_size
 #define SSL_CTX_set0_chain SSL_CTX_set0_chain
 #define SSL_CTX_set1_chain SSL_CTX_set1_chain
+#define SSL_CTX_set1_curves SSL_CTX_set1_curves
 #define SSL_CTX_set1_groups SSL_CTX_set1_groups
 #define SSL_CTX_set_max_cert_list SSL_CTX_set_max_cert_list
 #define SSL_CTX_set_max_send_fragment SSL_CTX_set_max_send_fragment
@@ -5478,6 +5493,7 @@
 #define SSL_session_reused SSL_session_reused
 #define SSL_set0_chain SSL_set0_chain
 #define SSL_set1_chain SSL_set1_chain
+#define SSL_set1_curves SSL_set1_curves
 #define SSL_set1_groups SSL_set1_groups
 #define SSL_set_max_cert_list SSL_set_max_cert_list
 #define SSL_set_max_send_fragment SSL_set_max_send_fragment

ssl/ssl_lib.cc

diff --git a/ssl/ssl_lib.cc b/ssl/ssl_lib.cc
index d7b5be3..26ffd50 100644
--- a/ssl/ssl_lib.cc
+++ b/ssl/ssl_lib.cc
@@ -3213,6 +3213,32 @@
   return 1;
 }
 
+uint16_t SSL_get_curve_id(const SSL *ssl) { return SSL_get_group_id(ssl); }
+
+const char *SSL_get_curve_name(uint16_t curve_id) {
+  return SSL_get_group_name(curve_id);
+}
+
+size_t SSL_get_all_curve_names(const char **out, size_t max_out) {
+  return SSL_get_all_group_names(out, max_out);
+}
+
+int SSL_CTX_set1_curves(SSL_CTX *ctx, const int *curves, size_t num_curves) {
+  return SSL_CTX_set1_groups(ctx, curves, num_curves);
+}
+
+int SSL_set1_curves(SSL *ssl, const int *curves, size_t num_curves) {
+  return SSL_set1_groups(ssl, curves, num_curves);
+}
+
+int SSL_CTX_set1_curves_list(SSL_CTX *ctx, const char *curves) {
+  return SSL_CTX_set1_groups_list(ctx, curves);
+}
+
+int SSL_set1_curves_list(SSL *ssl, const char *curves) {
+  return SSL_set1_groups_list(ssl, curves);
+}
+
 namespace fips202205 {
 
 // (References are to SP 800-52r2):