1 files changed, 357 insertions, 0 deletions

diff --git a/src/lib/libcrypto/store/str_mem.c b/src/lib/libcrypto/store/str_mem.c
new file mode 100644
index 0000000000..527757ae09
--- /dev/null
+++ b/src/lib/libcrypto/store/str_mem.c
@@ -0,0 +1,357 @@
+/* crypto/store/str_mem.c -*- mode:C; c-file-style: "eay" -*- */
+/* 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).
+*/
+
+struct mem_object_data_st
+        {
+        STORE_OBJECT *object;
+        STORE_ATTR_INFO *attr_info;
+        int references;
+        };
+
+struct mem_data_st
+        {
+        STACK *data;            /* A stack of mem_object_data_st,
+                                   sorted with STORE_ATTR_INFO_compare(). */
+        unsigned int compute_components : 1; /* Currently unused, but can
+                                                be used to add attributes
+                                                from parts of the data. */
+        };
+
+struct mem_ctx_st
+        {
+        int type;               /* The type we're searching for */
+        STACK *search_attributes; /* Sets of attributes to search for.
+                                     Each element is a STORE_ATTR_INFO. */
+        int search_index;       /* which of the search attributes we found a match
+                                   for, -1 when we still haven't found any */
+        int index;              /* -1 as long as we're searching for the first */
+        };
+
+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_new((int (*)(const char * const *, const char * const *))STORE_ATTR_INFO_compare);
+                        if (!context->search_attributes)
+                                {
+                                STOREerr(STORE_F_MEM_LIST_START,
+                                        ERR_R_MALLOC_FAILURE);
+                                goto err;
+                                }
+                        }
+                sk_push(context->search_attributes,(char *)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_num(context->search_attributes); i++)
+                        {
+                        key.attr_info =
+                                (STORE_ATTR_INFO *)sk_value(context->search_attributes, i);
+                        srch = sk_find_ex(store->data, (char *)&key);
+
+                        if (srch >= 0)
+                                {
+                                context->search_index = srch;
+                                break;
+                                }
+                        }
+                }
+        if (context->search_index < 0)
+                return NULL;
+        
+        key.attr_info =
+                (STORE_ATTR_INFO *)sk_value(context->search_attributes,
+                        context->search_index);
+        for(srch = context->search_index;
+            srch < sk_num(store->data)
+                    && STORE_ATTR_INFO_in_range(key.attr_info,
+                            (STORE_ATTR_INFO *)sk_value(store->data, srch))
+                    && !(cres = STORE_ATTR_INFO_in_ex(key.attr_info,
+                                 (STORE_ATTR_INFO *)sk_value(store->data, srch)));
+            srch++)
+                ;
+
+        context->search_index = srch;
+        if (cres)
+                return ((struct mem_object_data_st *)sk_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_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_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;
+        }