initial commit

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diff --git a/openssl/crypto/store/str_mem.c b/openssl/crypto/store/str_mem.c
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+++ b/openssl/crypto/store/str_mem.c
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+/* crypto/store/str_mem.c */
+/*
+ * Written by Richard Levitte (richard@levitte.org) for the OpenSSL project
+ * 2003.
+ */
+/* ====================================================================
+ * Copyright (c) 2003 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
+ *    openssl-core@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 <string.h>
+#include <openssl/err.h>
+#include "str_locl.h"
+
+/*
+ * The memory store is currently highly experimental.  It's meant to become a
+ * base store used by other stores for internal caching (for full caching
+ * support, aging needs to be added).
+ *
+ * The database use is meant to support as much attribute association as
+ * possible, while providing for as small search ranges as possible. This is
+ * currently provided for by sorting the entries by numbers that are composed
+ * of bits set at the positions indicated by attribute type codes.  This
+ * provides for ranges determined by the highest attribute type code value.
+ * A better idea might be to sort by values computed from the range of
+ * attributes associated with the object (basically, the difference between
+ * the highest and lowest attribute type code) and it's distance from a base
+ * (basically, the lowest associated attribute type code).
+ */
+
+typedef struct mem_object_data_st {
+    STORE_OBJECT *object;
+    STORE_ATTR_INFO *attr_info;
+    int references;
+} MEM_OBJECT_DATA;
+
+DECLARE_STACK_OF(MEM_OBJECT_DATA)
+struct mem_data_st {
+    /*
+     * sorted with
+     * STORE_ATTR_INFO_compare().
+     */
+    STACK_OF(MEM_OBJECT_DATA) *data;
+    /*
+     * Currently unused, but can
+     * be used to add attributes
+     * from parts of the data.
+     */
+    unsigned int compute_components:1;
+};
+
+DECLARE_STACK_OF(STORE_ATTR_INFO)
+struct mem_ctx_st {
+    /* The type we're searching for */
+    int type;
+    /*
+     * Sets of
+     * attributes to search for.  Each
+     * element is a STORE_ATTR_INFO.
+     */
+    STACK_OF(STORE_ATTR_INFO) *search_attributes;
+    /*
+     * which of the search attributes we
+     * found a match for, -1 when we still
+     * haven't found any
+     */
+    int search_index;
+    /* -1 as long as we're searching for the first */
+    int index;
+};
+
+static int mem_init(STORE *s);
+static void mem_clean(STORE *s);
+static STORE_OBJECT *mem_generate(STORE *s, STORE_OBJECT_TYPES type,
+                                  OPENSSL_ITEM attributes[],
+                                  OPENSSL_ITEM parameters[]);
+static STORE_OBJECT *mem_get(STORE *s, STORE_OBJECT_TYPES type,
+                             OPENSSL_ITEM attributes[],
+                             OPENSSL_ITEM parameters[]);
+static int mem_store(STORE *s, STORE_OBJECT_TYPES type, STORE_OBJECT *data,
+                     OPENSSL_ITEM attributes[], OPENSSL_ITEM parameters[]);
+static int mem_modify(STORE *s, STORE_OBJECT_TYPES type,
+                      OPENSSL_ITEM search_attributes[],
+                      OPENSSL_ITEM add_attributes[],
+                      OPENSSL_ITEM modify_attributes[],
+                      OPENSSL_ITEM delete_attributes[],
+                      OPENSSL_ITEM parameters[]);
+static int mem_delete(STORE *s, STORE_OBJECT_TYPES type,
+                      OPENSSL_ITEM attributes[], OPENSSL_ITEM parameters[]);
+static void *mem_list_start(STORE *s, STORE_OBJECT_TYPES type,
+                            OPENSSL_ITEM attributes[],
+                            OPENSSL_ITEM parameters[]);
+static STORE_OBJECT *mem_list_next(STORE *s, void *handle);
+static int mem_list_end(STORE *s, void *handle);
+static int mem_list_endp(STORE *s, void *handle);
+static int mem_lock(STORE *s, OPENSSL_ITEM attributes[],
+                    OPENSSL_ITEM parameters[]);
+static int mem_unlock(STORE *s, OPENSSL_ITEM attributes[],
+                      OPENSSL_ITEM parameters[]);
+static int mem_ctrl(STORE *s, int cmd, long l, void *p, void (*f) (void));
+
+static STORE_METHOD store_memory = {
+    "OpenSSL memory store interface",
+    mem_init,
+    mem_clean,
+    mem_generate,
+    mem_get,
+    mem_store,
+    mem_modify,
+    NULL,                       /* revoke */
+    mem_delete,
+    mem_list_start,
+    mem_list_next,
+    mem_list_end,
+    mem_list_endp,
+    NULL,                       /* update */
+    mem_lock,
+    mem_unlock,
+    mem_ctrl
+};
+
+const STORE_METHOD *STORE_Memory(void)
+{
+    return &store_memory;
+}
+
+static int mem_init(STORE *s)
+{
+    return 1;
+}
+
+static void mem_clean(STORE *s)
+{
+    return;
+}
+
+static STORE_OBJECT *mem_generate(STORE *s, STORE_OBJECT_TYPES type,
+                                  OPENSSL_ITEM attributes[],
+                                  OPENSSL_ITEM parameters[])
+{
+    STOREerr(STORE_F_MEM_GENERATE, STORE_R_NOT_IMPLEMENTED);
+    return 0;
+}
+
+static STORE_OBJECT *mem_get(STORE *s, STORE_OBJECT_TYPES type,
+                             OPENSSL_ITEM attributes[],
+                             OPENSSL_ITEM parameters[])
+{
+    void *context = mem_list_start(s, type, attributes, parameters);
+
+    if (context) {
+        STORE_OBJECT *object = mem_list_next(s, context);
+
+        if (mem_list_end(s, context))
+            return object;
+    }
+    return NULL;
+}
+
+static int mem_store(STORE *s, STORE_OBJECT_TYPES type,
+                     STORE_OBJECT *data, OPENSSL_ITEM attributes[],
+                     OPENSSL_ITEM parameters[])
+{
+    STOREerr(STORE_F_MEM_STORE, STORE_R_NOT_IMPLEMENTED);
+    return 0;
+}
+
+static int mem_modify(STORE *s, STORE_OBJECT_TYPES type,
+                      OPENSSL_ITEM search_attributes[],
+                      OPENSSL_ITEM add_attributes[],
+                      OPENSSL_ITEM modify_attributes[],
+                      OPENSSL_ITEM delete_attributes[],
+                      OPENSSL_ITEM parameters[])
+{
+    STOREerr(STORE_F_MEM_MODIFY, STORE_R_NOT_IMPLEMENTED);
+    return 0;
+}
+
+static int mem_delete(STORE *s, STORE_OBJECT_TYPES type,
+                      OPENSSL_ITEM attributes[], OPENSSL_ITEM parameters[])
+{
+    STOREerr(STORE_F_MEM_DELETE, STORE_R_NOT_IMPLEMENTED);
+    return 0;
+}
+
+/*
+ * The list functions may be the hardest to understand.  Basically,
+ * mem_list_start compiles a stack of attribute info elements, and puts that
+ * stack into the context to be returned.  mem_list_next will then find the
+ * first matching element in the store, and then walk all the way to the end
+ * of the store (since any combination of attribute bits above the starting
+ * point may match the searched for bit pattern...).
+ */
+static void *mem_list_start(STORE *s, STORE_OBJECT_TYPES type,
+                            OPENSSL_ITEM attributes[],
+                            OPENSSL_ITEM parameters[])
+{
+    struct mem_ctx_st *context =
+        (struct mem_ctx_st *)OPENSSL_malloc(sizeof(struct mem_ctx_st));
+    void *attribute_context = NULL;
+    STORE_ATTR_INFO *attrs = NULL;
+
+    if (!context) {
+        STOREerr(STORE_F_MEM_LIST_START, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
+    memset(context, 0, sizeof(struct mem_ctx_st));
+
+    attribute_context = STORE_parse_attrs_start(attributes);
+    if (!attribute_context) {
+        STOREerr(STORE_F_MEM_LIST_START, ERR_R_STORE_LIB);
+        goto err;
+    }
+
+    while ((attrs = STORE_parse_attrs_next(attribute_context))) {
+        if (context->search_attributes == NULL) {
+            context->search_attributes =
+                sk_STORE_ATTR_INFO_new(STORE_ATTR_INFO_compare);
+            if (!context->search_attributes) {
+                STOREerr(STORE_F_MEM_LIST_START, ERR_R_MALLOC_FAILURE);
+                goto err;
+            }
+        }
+        sk_STORE_ATTR_INFO_push(context->search_attributes, attrs);
+    }
+    if (!STORE_parse_attrs_endp(attribute_context))
+        goto err;
+    STORE_parse_attrs_end(attribute_context);
+    context->search_index = -1;
+    context->index = -1;
+    return context;
+ err:
+    if (attribute_context)
+        STORE_parse_attrs_end(attribute_context);
+    mem_list_end(s, context);
+    return NULL;
+}
+
+static STORE_OBJECT *mem_list_next(STORE *s, void *handle)
+{
+    int i;
+    struct mem_ctx_st *context = (struct mem_ctx_st *)handle;
+    struct mem_object_data_st key = { 0, 0, 1 };
+    struct mem_data_st *store = (struct mem_data_st *)STORE_get_ex_data(s, 1);
+    int srch;
+    int cres = 0;
+
+    if (!context) {
+        STOREerr(STORE_F_MEM_LIST_NEXT, ERR_R_PASSED_NULL_PARAMETER);
+        return NULL;
+    }
+    if (!store) {
+        STOREerr(STORE_F_MEM_LIST_NEXT, STORE_R_NO_STORE);
+        return NULL;
+    }
+
+    if (context->search_index == -1) {
+        for (i = 0;
+             i < sk_STORE_ATTR_INFO_num(context->search_attributes); i++) {
+            key.attr_info
+                = sk_STORE_ATTR_INFO_value(context->search_attributes, i);
+            srch = sk_MEM_OBJECT_DATA_find_ex(store->data, &key);
+
+            if (srch >= 0) {
+                context->search_index = srch;
+                break;
+            }
+        }
+    }
+    if (context->search_index < 0)
+        return NULL;
+
+    key.attr_info =
+        sk_STORE_ATTR_INFO_value(context->search_attributes,
+                                 context->search_index);
+    for (srch = context->search_index;
+         srch < sk_MEM_OBJECT_DATA_num(store->data)
+         && STORE_ATTR_INFO_in_range(key.attr_info,
+                                     sk_MEM_OBJECT_DATA_value(store->data,
+                                                              srch)->attr_info)
+         && !(cres =
+              STORE_ATTR_INFO_in_ex(key.attr_info,
+                                    sk_MEM_OBJECT_DATA_value(store->data,
+                                                             srch)->attr_info));
+         srch++) ;
+
+    context->search_index = srch;
+    if (cres)
+        return (sk_MEM_OBJECT_DATA_value(store->data, srch))->object;
+    return NULL;
+}
+
+static int mem_list_end(STORE *s, void *handle)
+{
+    struct mem_ctx_st *context = (struct mem_ctx_st *)handle;
+
+    if (!context) {
+        STOREerr(STORE_F_MEM_LIST_END, ERR_R_PASSED_NULL_PARAMETER);
+        return 0;
+    }
+    if (context && context->search_attributes)
+        sk_STORE_ATTR_INFO_free(context->search_attributes);
+    if (context)
+        OPENSSL_free(context);
+    return 1;
+}
+
+static int mem_list_endp(STORE *s, void *handle)
+{
+    struct mem_ctx_st *context = (struct mem_ctx_st *)handle;
+
+    if (!context
+        || context->search_index
+        == sk_STORE_ATTR_INFO_num(context->search_attributes))
+        return 1;
+    return 0;
+}
+
+static int mem_lock(STORE *s, OPENSSL_ITEM attributes[],
+                    OPENSSL_ITEM parameters[])
+{
+    return 1;
+}
+
+static int mem_unlock(STORE *s, OPENSSL_ITEM attributes[],
+                      OPENSSL_ITEM parameters[])
+{
+    return 1;
+}
+
+static int mem_ctrl(STORE *s, int cmd, long l, void *p, void (*f) (void))
+{
+    return 1;
+}