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author | Schanzenbach, Martin <martin.schanzenbach@aisec.fraunhofer.de> | 2018-07-19 23:28:53 +0200 |
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committer | Schanzenbach, Martin <martin.schanzenbach@aisec.fraunhofer.de> | 2018-07-19 23:28:53 +0200 |
commit | 4fd677cec39e5621d16bc2c63926b803b31582e3 (patch) | |
tree | b1ed7c7544c1a8a721308d67c908e0f3cd758486 /src/reclaim/plugin_gnsrecord_reclaim.c | |
parent | 0f75e5c54c6e6c9087cf565539266514abd67e98 (diff) | |
download | gnunet-4fd677cec39e5621d16bc2c63926b803b31582e3.tar.gz gnunet-4fd677cec39e5621d16bc2c63926b803b31582e3.zip |
renamed identity-provider subsystem to reclaim
Diffstat (limited to 'src/reclaim/plugin_gnsrecord_reclaim.c')
-rw-r--r-- | src/reclaim/plugin_gnsrecord_reclaim.c | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/src/reclaim/plugin_gnsrecord_reclaim.c b/src/reclaim/plugin_gnsrecord_reclaim.c new file mode 100644 index 000000000..0322df752 --- /dev/null +++ b/src/reclaim/plugin_gnsrecord_reclaim.c | |||
@@ -0,0 +1,265 @@ | |||
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 | |||
19 | /** | ||
20 | * @file reclaim/plugin_gnsrecord_reclaim.c | ||
21 | * @brief gnsrecord plugin to provide the API for identity records | ||
22 | * @author Martin Schanzenbach | ||
23 | */ | ||
24 | #include "platform.h" | ||
25 | #include "gnunet_util_lib.h" | ||
26 | #include "gnunet_gnsrecord_lib.h" | ||
27 | #include "gnunet_gnsrecord_plugin.h" | ||
28 | |||
29 | |||
30 | /** | ||
31 | * Convert the 'value' of a record to a string. | ||
32 | * | ||
33 | * @param cls closure, unused | ||
34 | * @param type type of the record | ||
35 | * @param data value in binary encoding | ||
36 | * @param data_size number of bytes in @a data | ||
37 | * @return NULL on error, otherwise human-readable representation of the value | ||
38 | */ | ||
39 | static char * | ||
40 | value_to_string (void *cls, | ||
41 | uint32_t type, | ||
42 | const void *data, | ||
43 | size_t data_size) | ||
44 | { | ||
45 | const struct GNUNET_CRYPTO_EcdhePrivateKey *ecdhe_privkey; | ||
46 | const struct GNUNET_CRYPTO_EcdsaPublicKey *audience_pubkey; | ||
47 | const char *scopes; | ||
48 | char *ecdhe_str; | ||
49 | char *aud_str; | ||
50 | char *result; | ||
51 | |||
52 | switch (type) | ||
53 | { | ||
54 | case GNUNET_GNSRECORD_TYPE_ID_ATTR: | ||
55 | return GNUNET_STRINGS_data_to_string_alloc (data, data_size); | ||
56 | case GNUNET_GNSRECORD_TYPE_ID_TOKEN: //DEPRECATED | ||
57 | return GNUNET_strndup (data, data_size); | ||
58 | case GNUNET_GNSRECORD_TYPE_ABE_KEY: | ||
59 | case GNUNET_GNSRECORD_TYPE_ABE_MASTER: | ||
60 | return GNUNET_STRINGS_data_to_string_alloc (data, data_size); | ||
61 | case GNUNET_GNSRECORD_TYPE_ID_TOKEN_METADATA: //DEPRECATED | ||
62 | ecdhe_privkey = data; | ||
63 | audience_pubkey = data+sizeof (struct GNUNET_CRYPTO_EcdhePrivateKey); | ||
64 | scopes = (char*) audience_pubkey+(sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey)); | ||
65 | ecdhe_str = GNUNET_STRINGS_data_to_string_alloc (ecdhe_privkey, | ||
66 | sizeof (struct GNUNET_CRYPTO_EcdhePrivateKey)); | ||
67 | aud_str = GNUNET_STRINGS_data_to_string_alloc (audience_pubkey, | ||
68 | sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey)); | ||
69 | GNUNET_asprintf (&result, | ||
70 | "%s;%s;%s", | ||
71 | ecdhe_str, aud_str, scopes); | ||
72 | GNUNET_free (aud_str); | ||
73 | GNUNET_free (ecdhe_str); | ||
74 | return result; | ||
75 | |||
76 | default: | ||
77 | return NULL; | ||
78 | } | ||
79 | } | ||
80 | |||
81 | |||
82 | /** | ||
83 | * Convert human-readable version of a 'value' of a record to the binary | ||
84 | * representation. | ||
85 | * | ||
86 | * @param cls closure, unused | ||
87 | * @param type type of the record | ||
88 | * @param s human-readable string | ||
89 | * @param data set to value in binary encoding (will be allocated) | ||
90 | * @param data_size set to number of bytes in @a data | ||
91 | * @return #GNUNET_OK on success | ||
92 | */ | ||
93 | static int | ||
94 | string_to_value (void *cls, | ||
95 | uint32_t type, | ||
96 | const char *s, | ||
97 | void **data, | ||
98 | size_t *data_size) | ||
99 | { | ||
100 | char* ecdhe_str; | ||
101 | char* aud_keystr; | ||
102 | char* write_ptr; | ||
103 | char* tmp_tok; | ||
104 | char* str; | ||
105 | |||
106 | if (NULL == s) | ||
107 | return GNUNET_SYSERR; | ||
108 | switch (type) | ||
109 | { | ||
110 | case GNUNET_GNSRECORD_TYPE_ID_ATTR: | ||
111 | return GNUNET_STRINGS_string_to_data (s, | ||
112 | strlen (s), | ||
113 | *data, | ||
114 | *data_size); | ||
115 | case GNUNET_GNSRECORD_TYPE_ID_TOKEN: | ||
116 | *data = GNUNET_strdup (s); | ||
117 | *data_size = strlen (s); | ||
118 | return GNUNET_OK; | ||
119 | case GNUNET_GNSRECORD_TYPE_ABE_KEY: | ||
120 | case GNUNET_GNSRECORD_TYPE_ABE_MASTER: | ||
121 | return GNUNET_STRINGS_string_to_data (s, | ||
122 | strlen (s), | ||
123 | *data, | ||
124 | *data_size); | ||
125 | case GNUNET_GNSRECORD_TYPE_ID_TOKEN_METADATA: | ||
126 | tmp_tok = GNUNET_strdup (s); | ||
127 | ecdhe_str = strtok (tmp_tok, ";"); | ||
128 | if (NULL == ecdhe_str) | ||
129 | { | ||
130 | GNUNET_free (tmp_tok); | ||
131 | return GNUNET_SYSERR; | ||
132 | } | ||
133 | aud_keystr = strtok (NULL, ";"); | ||
134 | if (NULL == aud_keystr) | ||
135 | { | ||
136 | GNUNET_free (tmp_tok); | ||
137 | return GNUNET_SYSERR; | ||
138 | } | ||
139 | str = strtok (NULL, ";"); | ||
140 | if (NULL == str) | ||
141 | { | ||
142 | GNUNET_free (tmp_tok); | ||
143 | return GNUNET_SYSERR; | ||
144 | } | ||
145 | *data_size = strlen (str) + 1 | ||
146 | +sizeof (struct GNUNET_CRYPTO_EcdhePrivateKey) | ||
147 | +sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey); | ||
148 | *data = GNUNET_malloc (*data_size); | ||
149 | |||
150 | write_ptr = *data; | ||
151 | GNUNET_STRINGS_string_to_data (ecdhe_str, | ||
152 | strlen (ecdhe_str), | ||
153 | write_ptr, | ||
154 | sizeof (struct GNUNET_CRYPTO_EcdhePrivateKey)); | ||
155 | write_ptr += sizeof (struct GNUNET_CRYPTO_EcdhePrivateKey); | ||
156 | GNUNET_STRINGS_string_to_data (aud_keystr, | ||
157 | strlen (aud_keystr), | ||
158 | write_ptr, | ||
159 | sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey)); | ||
160 | write_ptr += sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey); | ||
161 | GNUNET_memcpy (write_ptr, str, strlen (str) + 1); //with 0-Terminator | ||
162 | GNUNET_free (tmp_tok); | ||
163 | return GNUNET_OK; | ||
164 | |||
165 | default: | ||
166 | return GNUNET_SYSERR; | ||
167 | } | ||
168 | } | ||
169 | |||
170 | |||
171 | /** | ||
172 | * Mapping of record type numbers to human-readable | ||
173 | * record type names. | ||
174 | */ | ||
175 | static struct { | ||
176 | const char *name; | ||
177 | uint32_t number; | ||
178 | } name_map[] = { | ||
179 | { "ID_ATTR", GNUNET_GNSRECORD_TYPE_ID_ATTR }, | ||
180 | { "ID_TOKEN", GNUNET_GNSRECORD_TYPE_ID_TOKEN }, | ||
181 | { "ABE_KEY", GNUNET_GNSRECORD_TYPE_ABE_KEY }, | ||
182 | { "ABE_MASTER", GNUNET_GNSRECORD_TYPE_ABE_MASTER }, | ||
183 | { "ID_TOKEN_METADATA", GNUNET_GNSRECORD_TYPE_ID_TOKEN_METADATA }, | ||
184 | { NULL, UINT32_MAX } | ||
185 | }; | ||
186 | |||
187 | |||
188 | /** | ||
189 | * Convert a type name (i.e. "AAAA") to the corresponding number. | ||
190 | * | ||
191 | * @param cls closure, unused | ||
192 | * @param dns_typename name to convert | ||
193 | * @return corresponding number, UINT32_MAX on error | ||
194 | */ | ||
195 | static uint32_t | ||
196 | typename_to_number (void *cls, | ||
197 | const char *dns_typename) | ||
198 | { | ||
199 | unsigned int i; | ||
200 | |||
201 | i=0; | ||
202 | while ( (NULL != name_map[i].name) && | ||
203 | (0 != strcasecmp (dns_typename, name_map[i].name)) ) | ||
204 | i++; | ||
205 | return name_map[i].number; | ||
206 | } | ||
207 | |||
208 | |||
209 | /** | ||
210 | * Convert a type number (i.e. 1) to the corresponding type string (i.e. "A") | ||
211 | * | ||
212 | * @param cls closure, unused | ||
213 | * @param type number of a type to convert | ||
214 | * @return corresponding typestring, NULL on error | ||
215 | */ | ||
216 | static const char * | ||
217 | number_to_typename (void *cls, | ||
218 | uint32_t type) | ||
219 | { | ||
220 | unsigned int i; | ||
221 | |||
222 | i=0; | ||
223 | while ( (NULL != name_map[i].name) && | ||
224 | (type != name_map[i].number) ) | ||
225 | i++; | ||
226 | return name_map[i].name; | ||
227 | } | ||
228 | |||
229 | |||
230 | /** | ||
231 | * Entry point for the plugin. | ||
232 | * | ||
233 | * @param cls NULL | ||
234 | * @return the exported block API | ||
235 | */ | ||
236 | void * | ||
237 | libgnunet_plugin_gnsrecord_reclaim_init (void *cls) | ||
238 | { | ||
239 | struct GNUNET_GNSRECORD_PluginFunctions *api; | ||
240 | |||
241 | api = GNUNET_new (struct GNUNET_GNSRECORD_PluginFunctions); | ||
242 | api->value_to_string = &value_to_string; | ||
243 | api->string_to_value = &string_to_value; | ||
244 | api->typename_to_number = &typename_to_number; | ||
245 | api->number_to_typename = &number_to_typename; | ||
246 | return api; | ||
247 | } | ||
248 | |||
249 | |||
250 | /** | ||
251 | * Exit point from the plugin. | ||
252 | * | ||
253 | * @param cls the return value from #libgnunet_plugin_block_test_init | ||
254 | * @return NULL | ||
255 | */ | ||
256 | void * | ||
257 | libgnunet_plugin_gnsrecord_reclaim_done (void *cls) | ||
258 | { | ||
259 | struct GNUNET_GNSRECORD_PluginFunctions *api = cls; | ||
260 | |||
261 | GNUNET_free (api); | ||
262 | return NULL; | ||
263 | } | ||
264 | |||
265 | /* end of plugin_gnsrecord_dns.c */ | ||