summaryrefslogtreecommitdiff
path: root/openssl/crypto/asn1/ameth_lib.c
diff options
context:
space:
mode:
authorArne Schwabe <arne@rfc2549.org>2012-04-16 19:21:14 +0200
committerArne Schwabe <arne@rfc2549.org>2012-04-16 19:21:14 +0200
commit3e4d8f433239c40311037616b1b8833a06651ae0 (patch)
tree98ab7fce0d011d34677b0beb762d389cb5c39199 /openssl/crypto/asn1/ameth_lib.c
Initial import
Diffstat (limited to 'openssl/crypto/asn1/ameth_lib.c')
-rw-r--r--openssl/crypto/asn1/ameth_lib.c450
1 files changed, 450 insertions, 0 deletions
diff --git a/openssl/crypto/asn1/ameth_lib.c b/openssl/crypto/asn1/ameth_lib.c
new file mode 100644
index 00000000..5a581b90
--- /dev/null
+++ b/openssl/crypto/asn1/ameth_lib.c
@@ -0,0 +1,450 @@
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 2006.
+ */
+/* ====================================================================
+ * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/asn1t.h>
+#include <openssl/x509.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;
+
+/* Keep this sorted in type order !! */
+static const EVP_PKEY_ASN1_METHOD *standard_methods[] =
+ {
+#ifndef OPENSSL_NO_RSA
+ &rsa_asn1_meths[0],
+ &rsa_asn1_meths[1],
+#endif
+#ifndef OPENSSL_NO_DH
+ &dh_asn1_meth,
+#endif
+#ifndef OPENSSL_NO_DSA
+ &dsa_asn1_meths[0],
+ &dsa_asn1_meths[1],
+ &dsa_asn1_meths[2],
+ &dsa_asn1_meths[3],
+ &dsa_asn1_meths[4],
+#endif
+#ifndef OPENSSL_NO_EC
+ &eckey_asn1_meth,
+#endif
+ &hmac_asn1_meth
+ };
+
+typedef int sk_cmp_fn_type(const char * const *a, const char * const *b);
+DECLARE_STACK_OF(EVP_PKEY_ASN1_METHOD)
+static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;
+
+
+
+#ifdef TEST
+void main()
+ {
+ int i;
+ for (i = 0;
+ i < sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
+ i++)
+ fprintf(stderr, "Number %d id=%d (%s)\n", i,
+ standard_methods[i]->pkey_id,
+ OBJ_nid2sn(standard_methods[i]->pkey_id));
+ }
+#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)
+ {
+ 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_EVP_PKEY_ASN1_METHOD_num(app_methods);
+ return num;
+ }
+
+const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
+ {
+ int num = sizeof(standard_methods)/sizeof(EVP_PKEY_ASN1_METHOD *);
+ if (idx < 0)
+ return NULL;
+ if (idx < num)
+ return standard_methods[idx];
+ idx -= num;
+ return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
+ }
+
+static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
+ {
+ EVP_PKEY_ASN1_METHOD tmp;
+ const EVP_PKEY_ASN1_METHOD *t = &tmp, **ret;
+ tmp.pkey_id = type;
+ if (app_methods)
+ {
+ int 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 = OBJ_bsearch_ameth(&t, standard_methods,
+ sizeof(standard_methods)
+ /sizeof(EVP_PKEY_ASN1_METHOD *));
+ if (!ret || !*ret)
+ return NULL;
+ return *ret;
+ }
+
+/* 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 (((int)strlen(ameth->pem_str) == len) &&
+ !strncasecmp(ameth->pem_str, str, len))
+ return ameth;
+ }
+ return NULL;
+ }
+
+int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
+ {
+ if (app_methods == NULL)
+ {
+ app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
+ if (!app_methods)
+ return 0;
+ }
+ if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
+ return 0;
+ 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)
+ {
+ if (!ameth)
+ return 0;
+ if (ppkey_id)
+ *ppkey_id = ameth->pkey_id;
+ if (ppkey_base_id)
+ *ppkey_base_id = ameth->pkey_base_id;
+ if (ppkey_flags)
+ *ppkey_flags = ameth->pkey_flags;
+ if (pinfo)
+ *pinfo = ameth->info;
+ if (ppem_str)
+ *ppem_str = ameth->pem_str;
+ return 1;
+ }
+
+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;
+ ameth = OPENSSL_malloc(sizeof(EVP_PKEY_ASN1_METHOD));
+ if (!ameth)
+ return NULL;
+
+ ameth->pkey_id = id;
+ ameth->pkey_base_id = id;
+ ameth->pkey_flags = flags | ASN1_PKEY_DYNAMIC;
+
+ if (info)
+ {
+ ameth->info = BUF_strdup(info);
+ if (!ameth->info)
+ goto err;
+ }
+ else
+ ameth->info = NULL;
+
+ if (pem_str)
+ {
+ ameth->pem_str = BUF_strdup(pem_str);
+ if (!ameth->pem_str)
+ goto err;
+ }
+ else
+ ameth->pem_str = NULL;
+
+ 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->old_priv_encode = 0;
+ ameth->old_priv_decode = 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;
+
+ err:
+
+ EVP_PKEY_asn1_free(ameth);
+ return NULL;
+
+ }
+
+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;
+
+ }
+
+void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
+ {
+ if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC))
+ {
+ if (ameth->pem_str)
+ OPENSSL_free(ameth->pem_str);
+ if (ameth->info)
+ OPENSSL_free(ameth->info);
+ OPENSSL_free(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)(EVP_PKEY *pkey,
+ const unsigned char **pder, int derlen),
+ int (*param_encode)(const EVP_PKEY *pkey, unsigned char **pder),
+ 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,
+ int (*pkey_ctrl)(EVP_PKEY *pkey, int op,
+ long arg1, void *arg2))
+ {
+ ameth->pkey_ctrl = pkey_ctrl;
+ }