diff options
Diffstat (limited to 'src/plugin/reclaim/plugin_gnsrecord_reclaim.c')
-rw-r--r-- | src/plugin/reclaim/plugin_gnsrecord_reclaim.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/src/plugin/reclaim/plugin_gnsrecord_reclaim.c b/src/plugin/reclaim/plugin_gnsrecord_reclaim.c new file mode 100644 index 000000000..ce6fe483d --- /dev/null +++ b/src/plugin/reclaim/plugin_gnsrecord_reclaim.c | |||
@@ -0,0 +1,195 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet | ||
3 | Copyright (C) 2013, 2014 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 | |||
21 | /** | ||
22 | * @file reclaim/plugin_gnsrecord_reclaim.c | ||
23 | * @brief gnsrecord plugin to provide the API for identity records | ||
24 | * @author Martin Schanzenbach | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | |||
28 | #include "gnunet_util_lib.h" | ||
29 | |||
30 | #include "gnunet_gnsrecord_lib.h" | ||
31 | #include "gnunet_gnsrecord_plugin.h" | ||
32 | |||
33 | /** | ||
34 | * Convert the 'value' of a record to a string. | ||
35 | * | ||
36 | * @param cls closure, unused | ||
37 | * @param type type of the record | ||
38 | * @param data value in binary encoding | ||
39 | * @param data_size number of bytes in @a data | ||
40 | * @return NULL on error, otherwise human-readable representation of the value | ||
41 | */ | ||
42 | static char * | ||
43 | value_to_string (void *cls, uint32_t type, const void *data, size_t data_size) | ||
44 | { | ||
45 | switch (type) | ||
46 | { | ||
47 | case GNUNET_GNSRECORD_TYPE_RECLAIM_OIDC_REDIRECT: | ||
48 | case GNUNET_GNSRECORD_TYPE_RECLAIM_OIDC_CLIENT: | ||
49 | return GNUNET_strndup (data, data_size); | ||
50 | case GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE: | ||
51 | case GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE_REF: | ||
52 | case GNUNET_GNSRECORD_TYPE_RECLAIM_TICKET: | ||
53 | case GNUNET_GNSRECORD_TYPE_RECLAIM_CREDENTIAL: | ||
54 | case GNUNET_GNSRECORD_TYPE_RECLAIM_PRESENTATION: | ||
55 | return GNUNET_STRINGS_data_to_string_alloc (data, data_size); | ||
56 | |||
57 | default: | ||
58 | return NULL; | ||
59 | } | ||
60 | } | ||
61 | |||
62 | |||
63 | /** | ||
64 | * Convert human-readable version of a 'value' of a record to the binary | ||
65 | * representation. | ||
66 | * | ||
67 | * @param cls closure, unused | ||
68 | * @param type type of the record | ||
69 | * @param s human-readable string | ||
70 | * @param data set to value in binary encoding (will be allocated) | ||
71 | * @param data_size set to number of bytes in @a data | ||
72 | * @return #GNUNET_OK on success | ||
73 | */ | ||
74 | static int | ||
75 | string_to_value (void *cls, uint32_t type, const char *s, void **data, | ||
76 | size_t *data_size) | ||
77 | { | ||
78 | if (NULL == s) | ||
79 | return GNUNET_SYSERR; | ||
80 | switch (type) | ||
81 | { | ||
82 | case GNUNET_GNSRECORD_TYPE_RECLAIM_OIDC_REDIRECT: | ||
83 | case GNUNET_GNSRECORD_TYPE_RECLAIM_OIDC_CLIENT: | ||
84 | *data = GNUNET_strdup (s); | ||
85 | *data_size = strlen (s); | ||
86 | return GNUNET_OK; | ||
87 | case GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE: | ||
88 | case GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE_REF: | ||
89 | case GNUNET_GNSRECORD_TYPE_RECLAIM_TICKET: | ||
90 | case GNUNET_GNSRECORD_TYPE_RECLAIM_CREDENTIAL: | ||
91 | case GNUNET_GNSRECORD_TYPE_RECLAIM_PRESENTATION: | ||
92 | return GNUNET_STRINGS_string_to_data (s, strlen (s), *data, *data_size); | ||
93 | |||
94 | default: | ||
95 | return GNUNET_SYSERR; | ||
96 | } | ||
97 | } | ||
98 | |||
99 | |||
100 | /** | ||
101 | * Mapping of record type numbers to human-readable | ||
102 | * record type names. | ||
103 | */ | ||
104 | static struct | ||
105 | { | ||
106 | const char *name; | ||
107 | uint32_t number; | ||
108 | } name_map[] = { | ||
109 | { "RECLAIM_ATTRIBUTE", GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE }, | ||
110 | { "RECLAIM_ATTRIBUTE_REF", GNUNET_GNSRECORD_TYPE_RECLAIM_ATTRIBUTE_REF }, | ||
111 | { "RECLAIM_CREDENTIAL", GNUNET_GNSRECORD_TYPE_RECLAIM_CREDENTIAL }, | ||
112 | { "RECLAIM_PRESENTATION", GNUNET_GNSRECORD_TYPE_RECLAIM_PRESENTATION }, | ||
113 | { "RECLAIM_OIDC_CLIENT", GNUNET_GNSRECORD_TYPE_RECLAIM_OIDC_CLIENT }, | ||
114 | { "RECLAIM_OIDC_REDIRECT", GNUNET_GNSRECORD_TYPE_RECLAIM_OIDC_REDIRECT }, | ||
115 | { "RECLAIM_TICKET", GNUNET_GNSRECORD_TYPE_RECLAIM_TICKET }, | ||
116 | { NULL, UINT32_MAX } | ||
117 | }; | ||
118 | |||
119 | |||
120 | /** | ||
121 | * Convert a type name (e.g. "AAAA") to the corresponding number. | ||
122 | * | ||
123 | * @param cls closure, unused | ||
124 | * @param dns_typename name to convert | ||
125 | * @return corresponding number, UINT32_MAX on error | ||
126 | */ | ||
127 | static uint32_t | ||
128 | typename_to_number (void *cls, const char *dns_typename) | ||
129 | { | ||
130 | unsigned int i; | ||
131 | |||
132 | i = 0; | ||
133 | while ((NULL != name_map[i].name) && | ||
134 | (0 != strcasecmp (dns_typename, name_map[i].name))) | ||
135 | i++; | ||
136 | return name_map[i].number; | ||
137 | } | ||
138 | |||
139 | |||
140 | /** | ||
141 | * Convert a type number to the corresponding type string (e.g. 1 to "A") | ||
142 | * | ||
143 | * @param cls closure, unused | ||
144 | * @param type number of a type to convert | ||
145 | * @return corresponding typestring, NULL on error | ||
146 | */ | ||
147 | static const char * | ||
148 | number_to_typename (void *cls, uint32_t type) | ||
149 | { | ||
150 | unsigned int i; | ||
151 | |||
152 | i = 0; | ||
153 | while ((NULL != name_map[i].name) && (type != name_map[i].number)) | ||
154 | i++; | ||
155 | return name_map[i].name; | ||
156 | } | ||
157 | |||
158 | |||
159 | /** | ||
160 | * Entry point for the plugin. | ||
161 | * | ||
162 | * @param cls NULL | ||
163 | * @return the exported block API | ||
164 | */ | ||
165 | void * | ||
166 | libgnunet_plugin_gnsrecord_reclaim_init (void *cls) | ||
167 | { | ||
168 | struct GNUNET_GNSRECORD_PluginFunctions *api; | ||
169 | |||
170 | api = GNUNET_new (struct GNUNET_GNSRECORD_PluginFunctions); | ||
171 | api->value_to_string = &value_to_string; | ||
172 | api->string_to_value = &string_to_value; | ||
173 | api->typename_to_number = &typename_to_number; | ||
174 | api->number_to_typename = &number_to_typename; | ||
175 | return api; | ||
176 | } | ||
177 | |||
178 | |||
179 | /** | ||
180 | * Exit point from the plugin. | ||
181 | * | ||
182 | * @param cls the return value from #libgnunet_plugin_block_test_init | ||
183 | * @return NULL | ||
184 | */ | ||
185 | void * | ||
186 | libgnunet_plugin_gnsrecord_reclaim_done (void *cls) | ||
187 | { | ||
188 | struct GNUNET_GNSRECORD_PluginFunctions *api = cls; | ||
189 | |||
190 | GNUNET_free (api); | ||
191 | return NULL; | ||
192 | } | ||
193 | |||
194 | |||
195 | /* end of plugin_gnsrecord_dns.c */ | ||