GNUnet  0.11.x
plugin_block_test.c
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1 /*
2  This file is part of GNUnet
3  Copyright (C) 2010, 2021, 2022 GNUnet e.V.
4 
5  GNUnet is free software: you can redistribute it and/or modify it
6  under the terms of the GNU Affero General Public License as published
7  by the Free Software Foundation, either version 3 of the License,
8  or (at your option) any later version.
9 
10  GNUnet is distributed in the hope that it will be useful, but
11  WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  Affero General Public License for more details.
14 
15  You should have received a copy of the GNU Affero General Public License
16  along with this program. If not, see <http://www.gnu.org/licenses/>.
17 
18  SPDX-License-Identifier: AGPL3.0-or-later
19  */
20 
28 #include "platform.h"
29 #include "gnunet_block_plugin.h"
30 #include "gnunet_block_group_lib.h"
31 
36 #define BLOOMFILTER_K 16
37 
41 #define TEST_BF_SIZE 8
42 
43 
56 static struct GNUNET_BLOCK_Group *
59  uint32_t nonce,
60  const void *raw_data,
61  size_t raw_data_size,
62  va_list va)
63 {
64  unsigned int bf_size;
65  const char *guard;
66 
67  guard = va_arg (va, const char *);
68  if (0 == strcmp (guard,
69  "seen-set-size"))
70  bf_size = GNUNET_BLOCK_GROUP_compute_bloomfilter_size (va_arg (va, unsigned
71  int),
73  else if (0 == strcmp (guard,
74  "filter-size"))
75  bf_size = va_arg (va, unsigned int);
76  else
77  {
78  GNUNET_break (0);
79  bf_size = TEST_BF_SIZE;
80  }
81  GNUNET_break (NULL == va_arg (va, const char *));
82  return GNUNET_BLOCK_GROUP_bf_create (cls,
83  bf_size,
85  type,
86  nonce,
87  raw_data,
88  raw_data_size);
89 }
90 
91 
103 static enum GNUNET_GenericReturnValue
105  enum GNUNET_BLOCK_Type type,
106  const struct GNUNET_HashCode *query,
107  const void *xquery,
108  size_t xquery_size)
109 {
110  (void) cls;
111  (void) query;
112  (void) xquery;
114  {
115  GNUNET_break (0);
116  return GNUNET_SYSERR;
117  }
118  if (0 != xquery_size)
119  {
120  GNUNET_break_op (0);
121  return GNUNET_NO;
122  }
123  return GNUNET_OK;
124 }
125 
126 
136 static enum GNUNET_GenericReturnValue
138  enum GNUNET_BLOCK_Type type,
139  const void *block,
140  size_t block_size)
141 {
142  (void) cls;
143  (void) block;
144  (void) block_size;
146  {
147  GNUNET_break (0);
148  return GNUNET_SYSERR;
149  }
150  return GNUNET_OK;
151 }
152 
153 
172  enum GNUNET_BLOCK_Type type,
173  struct GNUNET_BLOCK_Group *group,
174  const struct GNUNET_HashCode *query,
175  const void *xquery,
176  size_t xquery_size,
177  const void *reply_block,
178  size_t reply_block_size)
179 {
180  struct GNUNET_HashCode chash;
181 
182  (void) cls;
183  (void) query;
184  (void) xquery;
185  (void) xquery_size;
187  {
188  GNUNET_break (0);
190  }
191  GNUNET_CRYPTO_hash (reply_block,
192  reply_block_size,
193  &chash);
194  if (GNUNET_YES ==
196  &chash))
199 }
200 
201 
212 static enum GNUNET_GenericReturnValue
213 block_plugin_test_get_key (void *cls,
214  enum GNUNET_BLOCK_Type type,
215  const void *block,
216  size_t block_size,
217  struct GNUNET_HashCode *key)
218 {
219  (void) cls;
220  (void) block;
221  (void) block_size;
222  (void) key;
224  {
225  GNUNET_break (0);
226  return GNUNET_SYSERR;
227  }
228  return GNUNET_NO;
229 }
230 
231 
238 void *
240 {
241  static const enum GNUNET_BLOCK_Type types[] = {
243  GNUNET_BLOCK_TYPE_ANY /* end of list */
244  };
245  struct GNUNET_BLOCK_PluginFunctions *api;
246 
253  api->types = types;
254  return api;
255 }
256 
257 
264 void *
266 {
267  struct GNUNET_BLOCK_PluginFunctions *api = cls;
268 
269  GNUNET_free (api);
270  return NULL;
271 }
272 
273 
274 /* end of plugin_block_test.c */
struct GNUNET_HashCode key
The key used in the DHT.
GNUNET_GenericReturnValue
Named constants for return values.
Definition: gnunet_common.h:92
@ GNUNET_OK
Definition: gnunet_common.h:95
@ GNUNET_YES
Definition: gnunet_common.h:97
@ GNUNET_NO
Definition: gnunet_common.h:94
@ GNUNET_SYSERR
Definition: gnunet_common.h:93
GNUNET_BLOCK_Type
WARNING: This header is generated! In order to add DHT block types, you must register them in GANA,...
@ GNUNET_BLOCK_TYPE_TEST
Block for testing.
@ GNUNET_BLOCK_TYPE_ANY
Identifier for any block.
int GNUNET_BLOCK_GROUP_bf_test_and_set(struct GNUNET_BLOCK_Group *bg, const struct GNUNET_HashCode *hc)
Test if hc is contained in the Bloom filter of bg.
Definition: bg_bf.c:214
size_t GNUNET_BLOCK_GROUP_compute_bloomfilter_size(unsigned int entry_count, unsigned int k)
How many bytes should a bloomfilter be if we have already seen entry_count responses?...
Definition: bg_bf.c:250
GNUNET_BLOCK_ReplyEvaluationResult
Possible ways for how a block may relate to a query.
struct GNUNET_BLOCK_Group * GNUNET_BLOCK_GROUP_bf_create(void *cls, size_t bf_size, unsigned int bf_k, enum GNUNET_BLOCK_Type type, uint32_t nonce, const void *raw_data, size_t raw_data_size)
Create a new block group that filters duplicates using a Bloom filter.
Definition: bg_bf.c:174
@ GNUNET_BLOCK_REPLY_OK_MORE
Valid result, and there may be more.
@ GNUNET_BLOCK_REPLY_OK_DUPLICATE
Valid result, but suppressed because it is a duplicate.
@ GNUNET_BLOCK_REPLY_TYPE_NOT_SUPPORTED
Specified block type not supported by any plugin.
void GNUNET_CRYPTO_hash(const void *block, size_t size, struct GNUNET_HashCode *ret)
Compute hash of a given block.
Definition: crypto_hash.c:41
#define GNUNET_break_op(cond)
Use this for assertion violations caused by other peers (i.e.
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
#define GNUNET_free(ptr)
Wrapper around free.
static struct GNUNET_BLOCK_Group * block_plugin_test_create_group(void *cls, enum GNUNET_BLOCK_Type type, uint32_t nonce, const void *raw_data, size_t raw_data_size, va_list va)
Create a new block group.
void * libgnunet_plugin_block_test_done(void *cls)
Exit point from the plugin.
static enum GNUNET_BLOCK_ReplyEvaluationResult block_plugin_test_check_reply(void *cls, enum GNUNET_BLOCK_Type type, struct GNUNET_BLOCK_Group *group, const struct GNUNET_HashCode *query, const void *xquery, size_t xquery_size, const void *reply_block, size_t reply_block_size)
Function called to validate a reply to a request.
static enum GNUNET_GenericReturnValue block_plugin_test_check_block(void *cls, enum GNUNET_BLOCK_Type type, const void *block, size_t block_size)
Function called to validate a block for storage.
#define TEST_BF_SIZE
How big is the BF we use for DHT blocks?
#define BLOOMFILTER_K
Number of bits we set per entry in the bloomfilter.
static enum GNUNET_GenericReturnValue block_plugin_test_check_query(void *cls, enum GNUNET_BLOCK_Type type, const struct GNUNET_HashCode *query, const void *xquery, size_t xquery_size)
Function called to validate a query.
static enum GNUNET_GenericReturnValue block_plugin_test_get_key(void *cls, enum GNUNET_BLOCK_Type type, const void *block, size_t block_size, struct GNUNET_HashCode *key)
Function called to obtain the key for a block.
void * libgnunet_plugin_block_test_init(void *cls)
Entry point for the plugin.
Block group data.
Each plugin is required to return a pointer to a struct of this type as the return value from its ent...
enum GNUNET_BLOCK_Type * types
0-terminated array of block types supported by this plugin.
GNUNET_BLOCK_QueryEvaluationFunction check_query
Check that a query is well-formed.
GNUNET_BLOCK_BlockEvaluationFunction check_block
Check that a block is well-formed.
GNUNET_BLOCK_GetKeyFunction get_key
Obtain the key for a given block (if possible).
GNUNET_BLOCK_ReplyEvaluationFunction check_reply
Check that a reply block matches a query.
GNUNET_BLOCK_GroupCreateFunction create_group
Create a block group to process a bunch of blocks in a shared context (i.e.
void * cls
Closure for all of the callbacks.
A 512-bit hashcode.
enum GNUNET_TESTBED_UnderlayLinkModelType type
the type of this model