Make EVP_PKEY_ASN1_METHOD opaque. Add application level functions to

initialize it. Initial support for application added public key ASN1.

crypto/Makefile

@@ -7,7 +7,7 @@ TOP=		..
 CC=		cc
 INCLUDE=	-I. -I$(TOP) -I../include
 # INCLUDES targets sudbirs!
-INCLUDES=	-I.. -I../.. -I../../include
+INCLUDES=	-I.. -I../.. -I../asn1 -I../../include
 CFLAG=		-g
 MAKEDEPPROG=	makedepend
 MAKEDEPEND=	$(TOP)/util/domd $(TOP) -MD $(MAKEDEPPROG)

crypto/asn1/ameth_lib.c

@@ -81,6 +81,11 @@ const EVP_PKEY_ASN1_METHOD *standard_methods[] =
 	&eckey_asn1_meth
 	};
 
+typedef int sk_cmp_fn_type(const char * const *a, const char * const *b);
+static STACK *app_methods = NULL;
+
+
+
 #ifdef TEST
 void main()
 	{
@@ -97,14 +102,21 @@ void main()
 static int ameth_cmp(const EVP_PKEY_ASN1_METHOD * const *a,
                 const EVP_PKEY_ASN1_METHOD * const *b)
 	{
-/*fprintf(stderr, "Comparing %d with %d\n", (*a)->pkey_id, (*b)->pkey_id);*/
         return ((*a)->pkey_id - (*b)->pkey_id);
 	}
 
-const EVP_PKEY_ASN1_METHOD *EVP_PKEY_ASN1_find(int type)
+const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(int type)
 	{
 	EVP_PKEY_ASN1_METHOD tmp, *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);
+		}
 	ret = (EVP_PKEY_ASN1_METHOD **) OBJ_bsearch((char *)&t,
         		(char *)standard_methods,
 			sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *),
@@ -113,7 +125,117 @@ const EVP_PKEY_ASN1_METHOD *EVP_PKEY_ASN1_find(int type)
 	if (!ret || !*ret)
 		return NULL;
 	if ((*ret)->pkey_flags & ASN1_PKEY_ALIAS)
-		return EVP_PKEY_ASN1_find((*ret)->pkey_base_id);
+		return EVP_PKEY_asn1_find((*ret)->pkey_base_id);
 	return *ret;
 	}
 
+int EVP_PKEY_asn1_add(const EVP_PKEY_ASN1_METHOD *ameth)
+	{
+	if (app_methods == NULL)
+		{
+		app_methods = sk_new((sk_cmp_fn_type *)ameth_cmp);
+		if (!app_methods)
+			return 0;
+		}
+	if (!sk_push(app_methods, (char *)ameth))
+		return 0;
+	sk_sort(app_methods);
+	return 1;
+	}
+
+EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id)
+	{
+	EVP_PKEY_ASN1_METHOD *ameth;
+	ameth = OPENSSL_malloc(sizeof(EVP_PKEY_ASN1_METHOD));
+	if (!ameth)
+		return NULL;
+
+	ameth->pkey_id = id;
+	ameth->pkey_base_id = id;
+	ameth->pkey_flags = ASN1_PKEY_DYNAMIC;
+	
+	ameth->pub_decode = 0;
+	ameth->pub_encode = 0;
+	ameth->pub_cmp = 0;
+	ameth->pub_print = 0;
+
+
+	ameth->priv_decode = 0;
+	ameth->priv_encode = 0;
+	ameth->priv_print = 0;
+	
+
+	ameth->pkey_size = 0;
+	ameth->pkey_bits = 0;
+
+	ameth->param_decode = 0;
+	ameth->param_encode = 0;
+	ameth->param_missing = 0;
+	ameth->param_copy = 0;
+	ameth->param_cmp = 0;
+	ameth->param_print = 0;
+
+
+	ameth->pkey_free = 0;
+	ameth->pkey_ctrl = 0;
+
+	return ameth;
+	}
+
+void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
+		int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub),
+		int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk),
+		int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
+		int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *pctx),
+		int (*pkey_size)(const EVP_PKEY *pk),
+		int (*pkey_bits)(const EVP_PKEY *pk))
+	{
+	ameth->pub_decode = pub_decode;
+	ameth->pub_encode = pub_encode;
+	ameth->pub_cmp = pub_cmp;
+	ameth->pub_print = pub_print;
+	ameth->pkey_size = pkey_size;
+	ameth->pkey_bits = pkey_bits;
+	}
+
+void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
+		int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf),
+		int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk),
+		int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *pctx))
+	{
+	ameth->priv_decode = priv_decode;
+	ameth->priv_encode = priv_encode;
+	ameth->priv_print = priv_print;
+	}
+
+void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD *ameth,
+		int (*param_decode)(const EVP_PKEY *pk, X509_PUBKEY *pub),
+		int (*param_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk),
+		int (*param_missing)(const EVP_PKEY *pk),
+		int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from),
+		int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b),
+		int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *pctx))
+	{
+	ameth->param_decode = param_decode;
+	ameth->param_encode = param_encode;
+	ameth->param_missing = param_missing;
+	ameth->param_copy = param_copy;
+	ameth->param_cmp = param_cmp;
+	ameth->param_print = param_print;
+	}
+
+void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD *ameth,
+		void (*pkey_free)(EVP_PKEY *pkey))
+	{
+	ameth->pkey_free = pkey_free;
+	}
+
+void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
+		void (*pkey_ctrl)(EVP_PKEY *pkey, int op,
+							long arg1, void *arg2))
+	{
+	ameth->pkey_ctrl = pkey_ctrl;
+	}

crypto/asn1/asn1.h

@@ -282,42 +282,6 @@ typedef struct ASN1_TLC_st ASN1_TLC;
 /* This is just an opaque pointer */
 typedef struct ASN1_VALUE_st ASN1_VALUE;
 
-/* ASN1 public key method structure */
-
-#define ASN1_PKEY_ALIAS		0x1
-
-struct evp_pkey_asn1_method_st
-	{
-	int pkey_id;
-	int pkey_base_id;
-	unsigned long pkey_flags;
-
-	int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub);
-	int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk);
-	int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
-	int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent,
-							ASN1_PCTX *pctx);
-
-	int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf);
-	int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk);
-	int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
-							ASN1_PCTX *pctx);
-
-	int (*pkey_size)(const EVP_PKEY *pk);
-	int (*pkey_bits)(const EVP_PKEY *pk);
-
-	int (*param_decode)(const EVP_PKEY *pk, X509_PUBKEY *pub);
-	int (*param_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk);
-	int (*param_missing)(const EVP_PKEY *pk);
-	int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from);
-	int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
-	int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
-							ASN1_PCTX *pctx);
-
-	void (*pkey_free)(EVP_PKEY *pkey);
-	void (*pkey_ctrl)(EVP_PKEY *pkey, int op, long arg1, void *arg2);
-	} /* EVP_PKEY_ASN1_METHOD */;
-
 /* Declare ASN1 functions: the implement macro in in asn1t.h */
 
 #define DECLARE_ASN1_FUNCTIONS(type) DECLARE_ASN1_FUNCTIONS_name(type, type)

crypto/asn1/asn1_locl.h

@@ -68,3 +68,40 @@ struct asn1_pctx_st
 	unsigned long oid_flags;
 	unsigned long str_flags;
 	} /* ASN1_PCTX */;
+
+/* ASN1 public key method structure */
+
+#define ASN1_PKEY_ALIAS		0x1
+#define ASN1_PKEY_DYNAMIC	0x2
+
+struct evp_pkey_asn1_method_st
+	{
+	int pkey_id;
+	int pkey_base_id;
+	unsigned long pkey_flags;
+
+	int (*pub_decode)(EVP_PKEY *pk, X509_PUBKEY *pub);
+	int (*pub_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk);
+	int (*pub_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
+	int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *pctx);
+
+	int (*priv_decode)(EVP_PKEY *pk, PKCS8_PRIV_KEY_INFO *p8inf);
+	int (*priv_encode)(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pk);
+	int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *pctx);
+
+	int (*pkey_size)(const EVP_PKEY *pk);
+	int (*pkey_bits)(const EVP_PKEY *pk);
+
+	int (*param_decode)(const EVP_PKEY *pk, X509_PUBKEY *pub);
+	int (*param_encode)(X509_PUBKEY *pub, const EVP_PKEY *pk);
+	int (*param_missing)(const EVP_PKEY *pk);
+	int (*param_copy)(EVP_PKEY *to, const EVP_PKEY *from);
+	int (*param_cmp)(const EVP_PKEY *a, const EVP_PKEY *b);
+	int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *pctx);
+
+	void (*pkey_free)(EVP_PKEY *pkey);
+	void (*pkey_ctrl)(EVP_PKEY *pkey, int op, long arg1, void *arg2);
+	} /* EVP_PKEY_ASN1_METHOD */;

crypto/asn1/d2i_pr.c

@@ -89,7 +89,7 @@ EVP_PKEY *d2i_PrivateKey(int type, EVP_PKEY **a, const unsigned char **pp,
 
 	ret->save_type=type;
 	ret->type=EVP_PKEY_type(type);
-	ret->ameth = EVP_PKEY_ASN1_find(type);
+	ret->ameth = EVP_PKEY_asn1_find(type);
 	switch (ret->type)
 		{
 #ifndef OPENSSL_NO_RSA

crypto/asn1/x_pubkey.c

@@ -60,6 +60,7 @@
 #include "cryptlib.h"
 #include <openssl/asn1t.h>
 #include <openssl/x509.h>
+#include "asn1_locl.h"
 #ifndef OPENSSL_NO_RSA
 #include <openssl/rsa.h>
 #endif
@@ -95,7 +96,7 @@ int X509_PUBKEY_set(X509_PUBKEY **x, EVP_PKEY *pkey)
 
 	if ((pk=X509_PUBKEY_new()) == NULL) goto error;
 
-	meth = EVP_PKEY_ASN1_find(pkey->type);
+	meth = EVP_PKEY_asn1_find(pkey->type);
 
 	if (meth)
 		{
@@ -153,7 +154,7 @@ EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key)
 		goto error;
 		}
 
-	meth = EVP_PKEY_ASN1_find(OBJ_obj2nid(key->algor->algorithm));
+	meth = EVP_PKEY_asn1_find(OBJ_obj2nid(key->algor->algorithm));
 
 	if (meth)
 		{

crypto/dh/dh_ameth.c

@@ -60,6 +60,7 @@
 #include <openssl/x509.h>
 #include <openssl/asn1.h>
 #include <openssl/dh.h>
+#include "asn1_locl.h"
 
 static void int_dh_free(EVP_PKEY *pkey)
 	{

crypto/dsa/dsa_ameth.c

@@ -60,6 +60,7 @@
 #include <openssl/x509.h>
 #include <openssl/asn1.h>
 #include <openssl/dsa.h>
+#include "asn1_locl.h"
 
 static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
 	{

crypto/ec/ec_ameth.c

@@ -59,6 +59,7 @@
 #include "cryptlib.h"
 #include <openssl/x509.h>
 #include <openssl/ec.h>
+#include "asn1_locl.h"
 
 static int eckey_param2type(int *pptype, void **ppval, EC_KEY *ec_key)
 	{

crypto/evp/evp.h

@@ -855,7 +855,7 @@ int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
 		    EVP_PBE_KEYGEN *keygen);
 void EVP_PBE_cleanup(void);
 
-const EVP_PKEY_ASN1_METHOD *EVP_PKEY_ASN1_find(int type);
+const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(int type);
 
 /* BEGIN ERROR CODES */
 /* The following lines are auto generated by the script mkerr.pl. Any changes

crypto/evp/evp_pkey.c

@@ -61,13 +61,7 @@
 #include "cryptlib.h"
 #include <openssl/x509.h>
 #include <openssl/rand.h>
-#ifndef OPENSSL_NO_RSA
-#include <openssl/rsa.h>
-#endif
-#ifndef OPENSSL_NO_DSA
-#include <openssl/dsa.h>
-#endif
-#include <openssl/bn.h>
+#include "asn1_locl.h"
 
 /* Extract a private key from a PKCS8 structure */
 
@@ -86,7 +80,7 @@ EVP_PKEY *EVP_PKCS82PKEY(PKCS8_PRIV_KEY_INFO *p8)
 		return NULL;
 	}
 
-	meth = EVP_PKEY_ASN1_find(OBJ_obj2nid(algoid));
+	meth = EVP_PKEY_asn1_find(OBJ_obj2nid(algoid));
 
 	if (meth)
 		{
@@ -138,7 +132,7 @@ PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8_broken(EVP_PKEY *pkey, int broken)
 	}
 	p8->broken = broken;
 
-	meth = EVP_PKEY_ASN1_find(pkey->type);
+	meth = EVP_PKEY_asn1_find(pkey->type);
 
 	if (meth)
 		{

crypto/evp/p_lib.c

@@ -74,6 +74,8 @@
 #include <openssl/dh.h>
 #endif
 
+#include "asn1_locl.h"
+
 static void EVP_PKEY_free_it(EVP_PKEY *x);
 
 int EVP_PKEY_bits(EVP_PKEY *pkey)
@@ -189,7 +191,7 @@ int EVP_PKEY_assign(EVP_PKEY *pkey, int type, char *key)
 	if (pkey == NULL) return(0);
 	if (pkey->pkey.ptr != NULL)
 		EVP_PKEY_free_it(pkey);
-	ameth = EVP_PKEY_ASN1_find(type);
+	ameth = EVP_PKEY_asn1_find(type);
 	pkey->ameth = ameth;
 	pkey->type = ameth->pkey_id;
 	pkey->save_type=type;
@@ -284,7 +286,7 @@ DH *EVP_PKEY_get1_DH(EVP_PKEY *pkey)
 int EVP_PKEY_type(int type)
 	{
 	const EVP_PKEY_ASN1_METHOD *ameth;
-	ameth = EVP_PKEY_ASN1_find(type);
+	ameth = EVP_PKEY_asn1_find(type);
 	if (ameth)
 		return ameth->pkey_id;
 	return NID_undef;

crypto/rsa/rsa_ameth.c

@@ -60,6 +60,7 @@
 #include <openssl/asn1t.h>
 #include <openssl/x509.h>
 #include <openssl/rsa.h>
+#include "asn1_locl.h"
 
 static int rsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
 	{