X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fasn1%2Fameth_lib.c;h=a19e058fca693f429868bd3e5d9be5ecec133fac;hp=6f98872cf10baf235966a0c56eb8ffc2a2fdbf22;hb=3231e42d726dcb1c9fd064ea8350d4f362718443;hpb=0b33dac3100c68ab19a6be804cdeaaa87582b9a0

diff --git a/crypto/asn1/ameth_lib.c b/crypto/asn1/ameth_lib.c
index 6f98872cf1..a19e058fca 100644
--- a/crypto/asn1/ameth_lib.c
+++ b/crypto/asn1/ameth_lib.c
@@ -1,4 +1,4 @@
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2006.
  */
 /* ====================================================================
@@ -59,16 +59,20 @@
 #include "cryptlib.h"
 #include <openssl/asn1t.h>
 #include <openssl/x509.h>
-#include <openssl/ec.h>
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
+#endif
 #include "asn1_locl.h"
 
 extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[];
 extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[];
 extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth;
 extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth;
+extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth;
+extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth;
 
 /* Keep this sorted in type order !! */
-const EVP_PKEY_ASN1_METHOD *standard_methods[] = 
+static const EVP_PKEY_ASN1_METHOD *standard_methods[] = 
 	{
 #ifndef OPENSSL_NO_RSA
 	&rsa_asn1_meths[0],
@@ -85,12 +89,15 @@ const EVP_PKEY_ASN1_METHOD *standard_methods[] =
 	&dsa_asn1_meths[4],
 #endif
 #ifndef OPENSSL_NO_EC
-	&eckey_asn1_meth
+	&eckey_asn1_meth,
 #endif
+	&hmac_asn1_meth,
+	&cmac_asn1_meth
 	};
 
 typedef int sk_cmp_fn_type(const char * const *a, const char * const *b);
-static STACK *app_methods = NULL;
+DECLARE_STACK_OF(EVP_PKEY_ASN1_METHOD)
+static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;
 
 
 
@@ -107,17 +114,23 @@ void main()
 	}
 #endif
 
+DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
+			   const EVP_PKEY_ASN1_METHOD *, ameth);
+
 static int ameth_cmp(const EVP_PKEY_ASN1_METHOD * const *a,
-                const EVP_PKEY_ASN1_METHOD * const *b)
+		     const EVP_PKEY_ASN1_METHOD * const *b)
 	{
         return ((*a)->pkey_id - (*b)->pkey_id);
 	}
 
+IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
+			     const EVP_PKEY_ASN1_METHOD *, ameth);
+
 int EVP_PKEY_asn1_get_count(void)
 	{
 	int num = sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
 	if (app_methods)
-		num += sk_num(app_methods);
+		num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
 	return num;
 	}
 
@@ -129,63 +142,125 @@ const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
 	if (idx < num)
 		return standard_methods[idx];
 	idx -= num;
-	return (const EVP_PKEY_ASN1_METHOD *)sk_value(app_methods, idx);
+	return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
 	}
 
-const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(int type)
+static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
 	{
-	EVP_PKEY_ASN1_METHOD tmp, *t = &tmp, **ret;
+	EVP_PKEY_ASN1_METHOD tmp;
+	const EVP_PKEY_ASN1_METHOD *t = &tmp, **ret;
 	tmp.pkey_id = type;
 	if (app_methods)
 		{
 		int idx;
-		idx = sk_find(app_methods, (char *)&t);
-		if (idx > 0)
-			return (EVP_PKEY_ASN1_METHOD *)
-				sk_value(app_methods, idx);
+		idx = sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp);
+		if (idx >= 0)
+			return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
 		}
-	ret = (EVP_PKEY_ASN1_METHOD **) OBJ_bsearch((char *)&t,
-        		(char *)standard_methods,
-			sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *),
-        		sizeof(EVP_PKEY_ASN1_METHOD *),
-			(int (*)(const void *, const void *))ameth_cmp);
+	ret = OBJ_bsearch_ameth(&t, standard_methods,
+			  sizeof(standard_methods)
+			  /sizeof(EVP_PKEY_ASN1_METHOD *));
 	if (!ret || !*ret)
 		return NULL;
-	if ((*ret)->pkey_flags & ASN1_PKEY_ALIAS)
-		return EVP_PKEY_asn1_find((*ret)->pkey_base_id);
 	return *ret;
 	}
 
-const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(const char *str, int len)
+/* Find an implementation of an ASN1 algorithm. If 'pe' is not NULL
+ * also search through engines and set *pe to a functional reference
+ * to the engine implementing 'type' or NULL if no engine implements 
+ * it.
+ */
+
+const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(ENGINE **pe, int type)
+	{
+	const EVP_PKEY_ASN1_METHOD *t;
+
+	for (;;)
+		{
+		t = pkey_asn1_find(type);
+		if (!t || !(t->pkey_flags & ASN1_PKEY_ALIAS))
+			break;
+		type = t->pkey_base_id;
+		}
+	if (pe)
+		{
+#ifndef OPENSSL_NO_ENGINE
+		ENGINE *e;
+		/* type will contain the final unaliased type */
+		e = ENGINE_get_pkey_asn1_meth_engine(type);
+		if (e)
+			{
+			*pe = e;
+			return ENGINE_get_pkey_asn1_meth(e, type);
+			}
+#endif
+		*pe = NULL;
+		}
+	return t;
+	}
+
+const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
+					const char *str, int len)
 	{
 	int i;
 	const EVP_PKEY_ASN1_METHOD *ameth;
+	if (len == -1)
+		len = strlen(str);
+	if (pe)
+		{
+#ifndef OPENSSL_NO_ENGINE
+		ENGINE *e;
+		ameth = ENGINE_pkey_asn1_find_str(&e, str, len);
+		if (ameth)
+			{
+			/* Convert structural into
+			 * functional reference
+			 */
+			if (!ENGINE_init(e))
+				ameth = NULL;
+			ENGINE_free(e);
+			*pe = e;
+			return ameth;
+			}
+#endif
+		*pe = NULL;
+		}
 	for (i = 0; i < EVP_PKEY_asn1_get_count(); i++)
 		{
 		ameth = EVP_PKEY_asn1_get0(i);
 		if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
 			continue;
-		if ((strlen(ameth->pem_str) == len) && 
+		if (((int)strlen(ameth->pem_str) == len) && 
 			!strncasecmp(ameth->pem_str, str, len))
 			return ameth;
 		}
 	return NULL;
 	}
 
-int EVP_PKEY_asn1_add(const EVP_PKEY_ASN1_METHOD *ameth)
+int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
 	{
 	if (app_methods == NULL)
 		{
-		app_methods = sk_new((sk_cmp_fn_type *)ameth_cmp);
+		app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
 		if (!app_methods)
 			return 0;
 		}
-	if (!sk_push(app_methods, (char *)ameth))
+	if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
 		return 0;
-	sk_sort(app_methods);
+	sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
 	return 1;
 	}
 
+int EVP_PKEY_asn1_add_alias(int to, int from)
+	{
+	EVP_PKEY_ASN1_METHOD *ameth;
+	ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
+	if (!ameth)
+		return 0;
+	ameth->pkey_base_id = to;
+	return EVP_PKEY_asn1_add0(ameth);
+	}
+
 int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id, int *ppkey_flags,
 				const char **pinfo, const char **ppem_str,
 					const EVP_PKEY_ASN1_METHOD *ameth)
@@ -205,7 +280,12 @@ int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id, int *ppkey_flags,
 	return 1;
 	}
 
-EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id,
+const EVP_PKEY_ASN1_METHOD* EVP_PKEY_get0_asn1(EVP_PKEY *pkey)
+	{
+	return pkey->ameth;
+	}
+
+EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id, int flags,
 					const char *pem_str, const char *info)
 	{
 	EVP_PKEY_ASN1_METHOD *ameth;
@@ -213,9 +293,11 @@ EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id,
 	if (!ameth)
 		return NULL;
 
+	memset(ameth, 0, sizeof(EVP_PKEY_ASN1_METHOD));
+
 	ameth->pkey_id = id;
 	ameth->pkey_base_id = id;
-	ameth->pkey_flags = ASN1_PKEY_DYNAMIC;
+	ameth->pkey_flags = flags | ASN1_PKEY_DYNAMIC;
 
 	if (info)
 		{
@@ -223,6 +305,8 @@ EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id,
 		if (!ameth->info)
 			goto err;
 		}
+	else
+		ameth->info = NULL;
 
 	if (pem_str)
 		{
@@ -230,7 +314,9 @@ EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id,
 		if (!ameth->pem_str)
 			goto err;
 		}
-	
+	else
+		ameth->pem_str = NULL;
+
 	ameth->pub_decode = 0;
 	ameth->pub_encode = 0;
 	ameth->pub_cmp = 0;
@@ -240,6 +326,12 @@ EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id,
 	ameth->priv_encode = 0;
 	ameth->priv_print = 0;
 
+	ameth->old_priv_encode = 0;
+	ameth->old_priv_decode = 0;
+
+	ameth->item_verify = 0;
+	ameth->item_sign = 0;
+
 	ameth->pkey_size = 0;
 	ameth->pkey_bits = 0;
 
@@ -262,6 +354,40 @@ EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id,
 
 	}
 
+void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst, 
+			const EVP_PKEY_ASN1_METHOD *src)
+	{
+
+	dst->pub_decode = src->pub_decode;
+	dst->pub_encode = src->pub_encode;
+	dst->pub_cmp = src->pub_cmp;
+	dst->pub_print = src->pub_print;
+
+	dst->priv_decode = src->priv_decode;
+	dst->priv_encode = src->priv_encode;
+	dst->priv_print = src->priv_print;
+
+	dst->old_priv_encode = src->old_priv_encode;
+	dst->old_priv_decode = src->old_priv_decode;
+
+	dst->pkey_size = src->pkey_size;
+	dst->pkey_bits = src->pkey_bits;
+
+	dst->param_decode = src->param_decode;
+	dst->param_encode = src->param_encode;
+	dst->param_missing = src->param_missing;
+	dst->param_copy = src->param_copy;
+	dst->param_cmp = src->param_cmp;
+	dst->param_print = src->param_print;
+
+	dst->pkey_free = src->pkey_free;
+	dst->pkey_ctrl = src->pkey_ctrl;
+
+	dst->item_sign = src->item_sign;
+	dst->item_verify = src->item_verify;
+
+	}
+
 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
 	{
 	if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC))
@@ -327,7 +453,7 @@ void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
 	}
 
 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
-		void (*pkey_ctrl)(EVP_PKEY *pkey, int op,
+		int (*pkey_ctrl)(EVP_PKEY *pkey, int op,
 							long arg1, void *arg2))
 	{
 	ameth->pkey_ctrl = pkey_ctrl;