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author | Philipp Tölke <toelke@in.tum.de> | 2010-10-08 07:36:36 +0000 |
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committer | Philipp Tölke <toelke@in.tum.de> | 2010-10-08 07:36:36 +0000 |
commit | 3c7fefd9f96e3425d3daba84abcd6e89fc140ed6 (patch) | |
tree | 6df3d09356a5142ec27a30c289eb309105fad79b /src/block | |
parent | 18a5a28dd455e5d59673593a7f08c2ed1bfae868 (diff) | |
download | gnunet-3c7fefd9f96e3425d3daba84abcd6e89fc140ed6.tar.gz gnunet-3c7fefd9f96e3425d3daba84abcd6e89fc140ed6.zip |
template for the dns-block
Diffstat (limited to 'src/block')
-rw-r--r-- | src/block/Makefile.am | 8 | ||||
-rw-r--r-- | src/block/plugin_block_dns.c | 128 |
2 files changed, 136 insertions, 0 deletions
diff --git a/src/block/Makefile.am b/src/block/Makefile.am index b37c7705e..11dea77d7 100644 --- a/src/block/Makefile.am +++ b/src/block/Makefile.am | |||
@@ -16,6 +16,7 @@ plugin_LTLIBRARIES = \ | |||
16 | libgnunet_plugin_block_dht.la \ | 16 | libgnunet_plugin_block_dht.la \ |
17 | libgnunet_plugin_block_fs.la \ | 17 | libgnunet_plugin_block_fs.la \ |
18 | libgnunet_plugin_block_template.la \ | 18 | libgnunet_plugin_block_template.la \ |
19 | libgnunet_plugin_block_dns.la \ | ||
19 | libgnunet_plugin_block_test.la | 20 | libgnunet_plugin_block_test.la |
20 | 21 | ||
21 | libgnunet_plugin_block_dht_la_SOURCES = \ | 22 | libgnunet_plugin_block_dht_la_SOURCES = \ |
@@ -35,6 +36,13 @@ libgnunet_plugin_block_fs_la_LIBADD = \ | |||
35 | libgnunet_plugin_block_fs_la_LDFLAGS = \ | 36 | libgnunet_plugin_block_fs_la_LDFLAGS = \ |
36 | $(GN_PLUGIN_LDFLAGS) | 37 | $(GN_PLUGIN_LDFLAGS) |
37 | 38 | ||
39 | libgnunet_plugin_block_dns_la_SOURCES = \ | ||
40 | plugin_block_dns.c | ||
41 | libgnunet_plugin_block_dns_la_LIBADD = \ | ||
42 | $(top_builddir)/src/util/libgnunetutil.la | ||
43 | libgnunet_plugin_block_dns_la_LDFLAGS = \ | ||
44 | $(GN_PLUGIN_LDFLAGS) | ||
45 | |||
38 | libgnunet_plugin_block_template_la_SOURCES = \ | 46 | libgnunet_plugin_block_template_la_SOURCES = \ |
39 | plugin_block_template.c | 47 | plugin_block_template.c |
40 | libgnunet_plugin_block_template_la_LIBADD = \ | 48 | libgnunet_plugin_block_template_la_LIBADD = \ |
diff --git a/src/block/plugin_block_dns.c b/src/block/plugin_block_dns.c new file mode 100644 index 000000000..743747c85 --- /dev/null +++ b/src/block/plugin_block_dns.c | |||
@@ -0,0 +1,128 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | (C) 2010 Christian Grothoff (and other contributing authors) | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 3, or (at your | ||
8 | 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 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
18 | Boston, MA 02111-1307, USA. | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file block/plugin_block_dns.c | ||
23 | * @brief block plugin for storing .gnunet-bindings | ||
24 | * @author Philipp Tölke | ||
25 | */ | ||
26 | |||
27 | #include "platform.h" | ||
28 | #include "plugin_block.h" | ||
29 | |||
30 | #define DEBUG_DHT GNUNET_NO | ||
31 | |||
32 | /** | ||
33 | * Function called to validate a reply or a request. For | ||
34 | * request evaluation, simply pass "NULL" for the reply_block. | ||
35 | * | ||
36 | * @param cls closure | ||
37 | * @param type block type | ||
38 | * @param query original query (hash) | ||
39 | * @param bf pointer to bloom filter associated with query; possibly updated (!) | ||
40 | * @param bf_mutator mutation value for bf | ||
41 | * @param xquery extended query data (can be NULL, depending on type) | ||
42 | * @param xquery_size number of bytes in xquery | ||
43 | * @param reply_block response to validate | ||
44 | * @param reply_block_size number of bytes in reply block | ||
45 | * @return characterization of result | ||
46 | */ | ||
47 | static enum GNUNET_BLOCK_EvaluationResult | ||
48 | block_plugin_dht_evaluate (void *cls, | ||
49 | enum GNUNET_BLOCK_Type type, | ||
50 | const GNUNET_HashCode *query, | ||
51 | struct GNUNET_CONTAINER_BloomFilter **bf, | ||
52 | int32_t bf_mutator, | ||
53 | const void *xquery, | ||
54 | size_t xquery_size, | ||
55 | const void *reply_block, | ||
56 | size_t reply_block_size) | ||
57 | { | ||
58 | switch (type) | ||
59 | { | ||
60 | case GNUNET_BLOCK_TYPE_DNS: | ||
61 | if (xquery_size != 0) | ||
62 | return GNUNET_BLOCK_EVALUATION_REQUEST_INVALID; | ||
63 | if (reply_block_size == 0) | ||
64 | return GNUNET_BLOCK_EVALUATION_REQUEST_VALID; | ||
65 | return GNUNET_BLOCK_EVALUATION_OK_LAST; | ||
66 | default: | ||
67 | return GNUNET_BLOCK_EVALUATION_TYPE_NOT_SUPPORTED; | ||
68 | } | ||
69 | } | ||
70 | |||
71 | |||
72 | /** | ||
73 | * Function called to obtain the key for a block. | ||
74 | * | ||
75 | * @param cls closure | ||
76 | * @param type block type | ||
77 | * @param block block to get the key for | ||
78 | * @param block_size number of bytes in block | ||
79 | * @param key set to the key (query) for the given block | ||
80 | * @return GNUNET_OK on success, GNUNET_SYSERR if type not supported | ||
81 | * (or if extracting a key from a block of this type does not work) | ||
82 | */ | ||
83 | static int | ||
84 | block_plugin_dht_get_key (void *cls, | ||
85 | enum GNUNET_BLOCK_Type type, | ||
86 | const void *block, | ||
87 | size_t block_size, | ||
88 | GNUNET_HashCode *key) | ||
89 | { | ||
90 | if (type != GNUNET_BLOCK_TYPE_DNS) | ||
91 | return GNUNET_SYSERR; | ||
92 | return GNUNET_SYSERR; | ||
93 | } | ||
94 | |||
95 | /** | ||
96 | * Entry point for the plugin. | ||
97 | */ | ||
98 | void * | ||
99 | libgnunet_plugin_block_dht_init (void *cls) | ||
100 | { | ||
101 | static enum GNUNET_BLOCK_Type types[] = | ||
102 | { | ||
103 | GNUNET_BLOCK_TYPE_DNS, | ||
104 | GNUNET_BLOCK_TYPE_ANY /* end of list */ | ||
105 | }; | ||
106 | struct GNUNET_BLOCK_PluginFunctions *api; | ||
107 | |||
108 | api = GNUNET_malloc (sizeof (struct GNUNET_BLOCK_PluginFunctions)); | ||
109 | api->evaluate = &block_plugin_dht_evaluate; | ||
110 | api->get_key = &block_plugin_dht_get_key; | ||
111 | api->types = types; | ||
112 | return api; | ||
113 | } | ||
114 | |||
115 | |||
116 | /** | ||
117 | * Exit point from the plugin. | ||
118 | */ | ||
119 | void * | ||
120 | libgnunet_plugin_block_dht_done (void *cls) | ||
121 | { | ||
122 | struct GNUNET_TRANSPORT_PluginFunctions *api = cls; | ||
123 | |||
124 | GNUNET_free (api); | ||
125 | return NULL; | ||
126 | } | ||
127 | |||
128 | /* end of plugin_block_dns.c */ | ||