decode_der2key: convert to use generated parameter parsing

Reviewed-by: Paul Yang <paulyang.inf@gmail.com>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/28152)

diff --git a/providers/implementations/encode_decode/decode_der2key.c.in b/providers/implementations/encode_decode/decode_der2key.c.in
index c24d24659b89f51cadfb47072073e15eb2b35b22..d3258ddf1a94e41f23a710ba14798a07544dad59 100644 (file)
--- a/providers/implementations/encode_decode/decode_der2key.c.in
+++ b/providers/implementations/encode_decode/decode_der2key.c.in
@@ -6,6 +6,9 @@
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
  */
+{-
+use OpenSSL::paramnames qw(produce_param_decoder);
+-}
 
 /*
  * low level APIs are deprecated for public use, but still ok for
@@ -42,8 +45,8 @@
 #include "prov/implementations.h"
 #include "prov/endecoder_local.h"
 #include "internal/nelem.h"
-#include "ml_dsa_codecs.h"
-#include "ml_kem_codecs.h"
+#include "prov/ml_dsa_codecs.h"
+#include "prov/ml_kem_codecs.h"
 
 #ifndef OPENSSL_NO_SLH_DSA
 typedef struct {
@@ -169,23 +172,27 @@ der2key_newctx(void *provctx, const struct keytype_desc_st *desc)
     return ctx;
 }
 
+{- produce_param_decoder('der2key_set_ctx_params',
+                         (['DECODER_PARAM_PROPERTIES', 'propq', 'utf8_string'],
+                         )); -}
+
 static const OSSL_PARAM *der2key_settable_ctx_params(ossl_unused void *provctx)
 {
-    static const OSSL_PARAM settables[] = {
-        OSSL_PARAM_utf8_string(OSSL_DECODER_PARAM_PROPERTIES, NULL, 0),
-        OSSL_PARAM_END
-    };
-    return settables;
+    return der2key_set_ctx_params_list;
 }
 
 static int der2key_set_ctx_params(void *vctx, const OSSL_PARAM params[])
 {
     struct der2key_ctx_st *ctx = vctx;
-    const OSSL_PARAM *p;
-    char *str = ctx->propq;
+    struct der2key_set_ctx_params_st p;
+    char *str;
+
+    if (ctx == NULL || !der2key_set_ctx_params_decoder(params, &p))
+        return 0;
 
-    p = OSSL_PARAM_locate_const(params, OSSL_DECODER_PARAM_PROPERTIES);
-    if (p != NULL && !OSSL_PARAM_get_utf8_string(p, &str, sizeof(ctx->propq)))
+    str = ctx->propq;
+    if (p.propq != NULL
+            && !OSSL_PARAM_get_utf8_string(p.propq, &str, sizeof(ctx->propq)))
         return 0;
 
     return 1;