--- /dev/null
+/* tasn_new.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 2000-2004 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 <stddef.h>
+#include <openssl/asn1.h>
+#include <openssl/objects.h>
+#include <openssl/err.h>
+#include <openssl/asn1t.h>
+#include <string.h>
+
+static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it,
+ int combine);
+static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it);
+static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt);
+static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it);
+
+ASN1_VALUE *ASN1_item_new(const ASN1_ITEM *it)
+ {
+ ASN1_VALUE *ret = NULL;
+ if (ASN1_item_ex_new(&ret, it) > 0)
+ return ret;
+ return NULL;
+ }
+
+/* Allocate an ASN1 structure */
+
+int ASN1_item_ex_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
+ {
+ return asn1_item_ex_combine_new(pval, it, 0);
+ }
+
+static int asn1_item_ex_combine_new(ASN1_VALUE **pval, const ASN1_ITEM *it,
+ int combine)
+ {
+ const ASN1_TEMPLATE *tt = NULL;
+ const ASN1_COMPAT_FUNCS *cf;
+ const ASN1_EXTERN_FUNCS *ef;
+ const ASN1_AUX *aux = it->funcs;
+ ASN1_aux_cb *asn1_cb;
+ ASN1_VALUE **pseqval;
+ int i;
+ if (aux && aux->asn1_cb)
+ asn1_cb = aux->asn1_cb;
+ else
+ asn1_cb = 0;
+
+ if (!combine) *pval = NULL;
+
+#ifdef CRYPTO_MDEBUG
+ if (it->sname)
+ CRYPTO_push_info(it->sname);
+#endif
+
+ switch(it->itype)
+ {
+
+ case ASN1_ITYPE_EXTERN:
+ ef = it->funcs;
+ if (ef && ef->asn1_ex_new)
+ {
+ if (!ef->asn1_ex_new(pval, it))
+ goto memerr;
+ }
+ break;
+
+ case ASN1_ITYPE_COMPAT:
+ cf = it->funcs;
+ if (cf && cf->asn1_new) {
+ *pval = cf->asn1_new();
+ if (!*pval)
+ goto memerr;
+ }
+ break;
+
+ case ASN1_ITYPE_PRIMITIVE:
+ if (it->templates)
+ {
+ if (!ASN1_template_new(pval, it->templates))
+ goto memerr;
+ }
+ else if (!ASN1_primitive_new(pval, it))
+ goto memerr;
+ break;
+
+ case ASN1_ITYPE_MSTRING:
+ if (!ASN1_primitive_new(pval, it))
+ goto memerr;
+ break;
+
+ case ASN1_ITYPE_CHOICE:
+ if (asn1_cb)
+ {
+ i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL);
+ if (!i)
+ goto auxerr;
+ if (i==2)
+ {
+#ifdef CRYPTO_MDEBUG
+ if (it->sname)
+ CRYPTO_pop_info();
+#endif
+ return 1;
+ }
+ }
+ if (!combine)
+ {
+ *pval = OPENSSL_malloc(it->size);
+ if (!*pval)
+ goto memerr;
+ memset(*pval, 0, it->size);
+ }
+ asn1_set_choice_selector(pval, -1, it);
+ if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL))
+ goto auxerr;
+ break;
+
+ case ASN1_ITYPE_NDEF_SEQUENCE:
+ case ASN1_ITYPE_SEQUENCE:
+ if (asn1_cb)
+ {
+ i = asn1_cb(ASN1_OP_NEW_PRE, pval, it, NULL);
+ if (!i)
+ goto auxerr;
+ if (i==2)
+ {
+#ifdef CRYPTO_MDEBUG
+ if (it->sname)
+ CRYPTO_pop_info();
+#endif
+ return 1;
+ }
+ }
+ if (!combine)
+ {
+ *pval = OPENSSL_malloc(it->size);
+ if (!*pval)
+ goto memerr;
+ memset(*pval, 0, it->size);
+ asn1_do_lock(pval, 0, it);
+ asn1_enc_init(pval, it);
+ }
+ for (i = 0, tt = it->templates; i < it->tcount; tt++, i++)
+ {
+ pseqval = asn1_get_field_ptr(pval, tt);
+ if (!ASN1_template_new(pseqval, tt))
+ goto memerr;
+ }
+ if (asn1_cb && !asn1_cb(ASN1_OP_NEW_POST, pval, it, NULL))
+ goto auxerr;
+ break;
+ }
+#ifdef CRYPTO_MDEBUG
+ if (it->sname) CRYPTO_pop_info();
+#endif
+ return 1;
+
+ memerr:
+ ASN1err(ASN1_F_ASN1_ITEM_EX_COMBINE_NEW, ERR_R_MALLOC_FAILURE);
+#ifdef CRYPTO_MDEBUG
+ if (it->sname) CRYPTO_pop_info();
+#endif
+ return 0;
+
+ auxerr:
+ ASN1err(ASN1_F_ASN1_ITEM_EX_COMBINE_NEW, ASN1_R_AUX_ERROR);
+ ASN1_item_ex_free(pval, it);
+#ifdef CRYPTO_MDEBUG
+ if (it->sname) CRYPTO_pop_info();
+#endif
+ return 0;
+
+ }
+
+static void asn1_item_clear(ASN1_VALUE **pval, const ASN1_ITEM *it)
+ {
+ const ASN1_EXTERN_FUNCS *ef;
+
+ switch(it->itype)
+ {
+
+ case ASN1_ITYPE_EXTERN:
+ ef = it->funcs;
+ if (ef && ef->asn1_ex_clear)
+ ef->asn1_ex_clear(pval, it);
+ else *pval = NULL;
+ break;
+
+
+ case ASN1_ITYPE_PRIMITIVE:
+ if (it->templates)
+ asn1_template_clear(pval, it->templates);
+ else
+ asn1_primitive_clear(pval, it);
+ break;
+
+ case ASN1_ITYPE_MSTRING:
+ asn1_primitive_clear(pval, it);
+ break;
+
+ case ASN1_ITYPE_COMPAT:
+ case ASN1_ITYPE_CHOICE:
+ case ASN1_ITYPE_SEQUENCE:
+ case ASN1_ITYPE_NDEF_SEQUENCE:
+ *pval = NULL;
+ break;
+ }
+ }
+
+
+int ASN1_template_new(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
+ {
+ const ASN1_ITEM *it = ASN1_ITEM_ptr(tt->item);
+ int ret;
+ if (tt->flags & ASN1_TFLG_OPTIONAL)
+ {
+ asn1_template_clear(pval, tt);
+ return 1;
+ }
+ /* If ANY DEFINED BY nothing to do */
+
+ if (tt->flags & ASN1_TFLG_ADB_MASK)
+ {
+ *pval = NULL;
+ return 1;
+ }
+#ifdef CRYPTO_MDEBUG
+ if (tt->field_name)
+ CRYPTO_push_info(tt->field_name);
+#endif
+ /* If SET OF or SEQUENCE OF, its a STACK */
+ if (tt->flags & ASN1_TFLG_SK_MASK)
+ {
+ STACK_OF(ASN1_VALUE) *skval;
+ skval = sk_ASN1_VALUE_new_null();
+ if (!skval)
+ {
+ ASN1err(ASN1_F_ASN1_TEMPLATE_NEW, ERR_R_MALLOC_FAILURE);
+ ret = 0;
+ goto done;
+ }
+ *pval = (ASN1_VALUE *)skval;
+ ret = 1;
+ goto done;
+ }
+ /* Otherwise pass it back to the item routine */
+ ret = asn1_item_ex_combine_new(pval, it, tt->flags & ASN1_TFLG_COMBINE);
+ done:
+#ifdef CRYPTO_MDEBUG
+ if (it->sname)
+ CRYPTO_pop_info();
+#endif
+ return ret;
+ }
+
+static void asn1_template_clear(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt)
+ {
+ /* If ADB or STACK just NULL the field */
+ if (tt->flags & (ASN1_TFLG_ADB_MASK|ASN1_TFLG_SK_MASK))
+ *pval = NULL;
+ else
+ asn1_item_clear(pval, ASN1_ITEM_ptr(tt->item));
+ }
+
+
+/* NB: could probably combine most of the real XXX_new() behaviour and junk
+ * all the old functions.
+ */
+
+int ASN1_primitive_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
+ {
+ ASN1_TYPE *typ;
+ ASN1_STRING *str;
+ int utype;
+
+ if (it && it->funcs)
+ {
+ const ASN1_PRIMITIVE_FUNCS *pf = it->funcs;
+ if (pf->prim_new)
+ return pf->prim_new(pval, it);
+ }
+
+ if (!it || (it->itype == ASN1_ITYPE_MSTRING))
+ utype = -1;
+ else
+ utype = it->utype;
+ switch(utype)
+ {
+ case V_ASN1_OBJECT:
+ *pval = (ASN1_VALUE *)OBJ_nid2obj(NID_undef);
+ return 1;
+
+ case V_ASN1_BOOLEAN:
+ *(ASN1_BOOLEAN *)pval = it->size;
+ return 1;
+
+ case V_ASN1_NULL:
+ *pval = (ASN1_VALUE *)1;
+ return 1;
+
+ case V_ASN1_ANY:
+ typ = OPENSSL_malloc(sizeof(ASN1_TYPE));
+ if (!typ)
+ return 0;
+ typ->value.ptr = NULL;
+ typ->type = -1;
+ *pval = (ASN1_VALUE *)typ;
+ break;
+
+ default:
+ str = ASN1_STRING_type_new(utype);
+ if (it->itype == ASN1_ITYPE_MSTRING && str)
+ str->flags |= ASN1_STRING_FLAG_MSTRING;
+ *pval = (ASN1_VALUE *)str;
+ break;
+ }
+ if (*pval)
+ return 1;
+ return 0;
+ }
+
+static void asn1_primitive_clear(ASN1_VALUE **pval, const ASN1_ITEM *it)
+ {
+ int utype;
+ if (it && it->funcs)
+ {
+ const ASN1_PRIMITIVE_FUNCS *pf = it->funcs;
+ if (pf->prim_clear)
+ pf->prim_clear(pval, it);
+ else
+ *pval = NULL;
+ return;
+ }
+ if (!it || (it->itype == ASN1_ITYPE_MSTRING))
+ utype = -1;
+ else
+ utype = it->utype;
+ if (utype == V_ASN1_BOOLEAN)
+ *(ASN1_BOOLEAN *)pval = it->size;
+ else *pval = NULL;
+ }
projects / cassiopeia.git / blobdiff