diff options
Diffstat (limited to 'src/identity/identity_api.c')
-rw-r--r-- | src/identity/identity_api.c | 1357 |
1 files changed, 0 insertions, 1357 deletions
diff --git a/src/identity/identity_api.c b/src/identity/identity_api.c deleted file mode 100644 index 471569cb3..000000000 --- a/src/identity/identity_api.c +++ /dev/null | |||
@@ -1,1357 +0,0 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2013, 2016, 2021 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 identity/identity_api.c | ||
23 | * @brief api to interact with the identity service | ||
24 | * @author Christian Grothoff | ||
25 | */ | ||
26 | #include "platform.h" | ||
27 | #include "gnunet_util_lib.h" | ||
28 | #include "gnunet_constants.h" | ||
29 | #include "gnunet_protocols.h" | ||
30 | #include "gnunet_identity_service.h" | ||
31 | #include "identity.h" | ||
32 | |||
33 | #define LOG(kind, ...) GNUNET_log_from (kind, "identity-api", __VA_ARGS__) | ||
34 | |||
35 | |||
36 | /** | ||
37 | * Handle for an operation with the identity service. | ||
38 | */ | ||
39 | struct GNUNET_IDENTITY_Operation | ||
40 | { | ||
41 | /** | ||
42 | * Main identity handle. | ||
43 | */ | ||
44 | struct GNUNET_IDENTITY_Handle *h; | ||
45 | |||
46 | /** | ||
47 | * We keep operations in a DLL. | ||
48 | */ | ||
49 | struct GNUNET_IDENTITY_Operation *next; | ||
50 | |||
51 | /** | ||
52 | * We keep operations in a DLL. | ||
53 | */ | ||
54 | struct GNUNET_IDENTITY_Operation *prev; | ||
55 | |||
56 | /** | ||
57 | * Message to send to the identity service. | ||
58 | * Allocated at the end of this struct. | ||
59 | */ | ||
60 | const struct GNUNET_MessageHeader *msg; | ||
61 | |||
62 | /** | ||
63 | * Continuation to invoke with the result of the transmission; @e cb | ||
64 | * and @e create_cont will be NULL in this case. | ||
65 | */ | ||
66 | GNUNET_IDENTITY_Continuation cont; | ||
67 | |||
68 | /** | ||
69 | * Continuation to invoke with the result of the transmission; @e cb | ||
70 | * and @a cb will be NULL in this case. | ||
71 | */ | ||
72 | GNUNET_IDENTITY_CreateContinuation create_cont; | ||
73 | |||
74 | /** | ||
75 | * Private key to return to @e create_cont, or NULL. | ||
76 | */ | ||
77 | struct GNUNET_IDENTITY_PrivateKey pk; | ||
78 | |||
79 | /** | ||
80 | * Continuation to invoke with the result of the transmission for | ||
81 | * 'get' operations (@e cont and @a create_cont will be NULL in this case). | ||
82 | */ | ||
83 | GNUNET_IDENTITY_Callback cb; | ||
84 | |||
85 | /** | ||
86 | * Closure for @e cont or @e cb. | ||
87 | */ | ||
88 | void *cls; | ||
89 | }; | ||
90 | |||
91 | |||
92 | /** | ||
93 | * Handle for the service. | ||
94 | */ | ||
95 | struct GNUNET_IDENTITY_Handle | ||
96 | { | ||
97 | /** | ||
98 | * Configuration to use. | ||
99 | */ | ||
100 | const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
101 | |||
102 | /** | ||
103 | * Connection to service. | ||
104 | */ | ||
105 | struct GNUNET_MQ_Handle *mq; | ||
106 | |||
107 | /** | ||
108 | * Hash map from the hash of the private key to the | ||
109 | * respective `GNUNET_IDENTITY_Ego` handle. | ||
110 | */ | ||
111 | struct GNUNET_CONTAINER_MultiHashMap *egos; | ||
112 | |||
113 | /** | ||
114 | * Function to call when we receive updates. | ||
115 | */ | ||
116 | GNUNET_IDENTITY_Callback cb; | ||
117 | |||
118 | /** | ||
119 | * Closure for @e cb. | ||
120 | */ | ||
121 | void *cb_cls; | ||
122 | |||
123 | /** | ||
124 | * Head of active operations. | ||
125 | */ | ||
126 | struct GNUNET_IDENTITY_Operation *op_head; | ||
127 | |||
128 | /** | ||
129 | * Tail of active operations. | ||
130 | */ | ||
131 | struct GNUNET_IDENTITY_Operation *op_tail; | ||
132 | |||
133 | /** | ||
134 | * Task doing exponential back-off trying to reconnect. | ||
135 | */ | ||
136 | struct GNUNET_SCHEDULER_Task *reconnect_task; | ||
137 | |||
138 | /** | ||
139 | * Time for next connect retry. | ||
140 | */ | ||
141 | struct GNUNET_TIME_Relative reconnect_delay; | ||
142 | |||
143 | /** | ||
144 | * Are we polling for incoming messages right now? | ||
145 | */ | ||
146 | int in_receive; | ||
147 | }; | ||
148 | |||
149 | |||
150 | /** | ||
151 | * Obtain the ego representing 'anonymous' users. | ||
152 | * | ||
153 | * @return handle for the anonymous user, MUST NOT be freed | ||
154 | */ | ||
155 | struct GNUNET_IDENTITY_Ego * | ||
156 | GNUNET_IDENTITY_ego_get_anonymous () | ||
157 | { | ||
158 | static struct GNUNET_IDENTITY_Ego anon; | ||
159 | static int setup; | ||
160 | |||
161 | if (setup) | ||
162 | return &anon; | ||
163 | anon.pk.type = htonl (GNUNET_IDENTITY_TYPE_ECDSA); | ||
164 | anon.pub.type = htonl (GNUNET_IDENTITY_TYPE_ECDSA); | ||
165 | anon.pk.ecdsa_key = *GNUNET_CRYPTO_ecdsa_key_get_anonymous (); | ||
166 | GNUNET_CRYPTO_hash (&anon.pk, | ||
167 | sizeof(anon.pk), | ||
168 | &anon.id); | ||
169 | setup = 1; | ||
170 | return &anon; | ||
171 | } | ||
172 | |||
173 | |||
174 | enum GNUNET_GenericReturnValue | ||
175 | GNUNET_IDENTITY_key_get_public (const struct | ||
176 | GNUNET_IDENTITY_PrivateKey *privkey, | ||
177 | struct GNUNET_IDENTITY_PublicKey *key) | ||
178 | { | ||
179 | key->type = privkey->type; | ||
180 | switch (ntohl (privkey->type)) | ||
181 | { | ||
182 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
183 | GNUNET_CRYPTO_ecdsa_key_get_public (&privkey->ecdsa_key, | ||
184 | &key->ecdsa_key); | ||
185 | break; | ||
186 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
187 | GNUNET_CRYPTO_eddsa_key_get_public (&privkey->eddsa_key, | ||
188 | &key->eddsa_key); | ||
189 | break; | ||
190 | default: | ||
191 | GNUNET_break (0); | ||
192 | return GNUNET_SYSERR; | ||
193 | } | ||
194 | return GNUNET_OK; | ||
195 | } | ||
196 | |||
197 | |||
198 | static int | ||
199 | private_key_create (enum GNUNET_IDENTITY_KeyType ktype, | ||
200 | struct GNUNET_IDENTITY_PrivateKey *key) | ||
201 | { | ||
202 | key->type = htonl (ktype); | ||
203 | switch (ktype) | ||
204 | { | ||
205 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
206 | GNUNET_CRYPTO_ecdsa_key_create (&key->ecdsa_key); | ||
207 | break; | ||
208 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
209 | GNUNET_CRYPTO_eddsa_key_create (&key->eddsa_key); | ||
210 | break; | ||
211 | default: | ||
212 | GNUNET_break (0); | ||
213 | return GNUNET_SYSERR; | ||
214 | } | ||
215 | return GNUNET_OK; | ||
216 | } | ||
217 | |||
218 | |||
219 | /** | ||
220 | * Try again to connect to the identity service. | ||
221 | * | ||
222 | * @param cls handle to the identity service. | ||
223 | */ | ||
224 | static void | ||
225 | reconnect (void *cls); | ||
226 | |||
227 | |||
228 | /** | ||
229 | * Free ego from hash map. | ||
230 | * | ||
231 | * @param cls identity service handle | ||
232 | * @param key unused | ||
233 | * @param value ego to free | ||
234 | * @return #GNUNET_OK (continue to iterate) | ||
235 | */ | ||
236 | static int | ||
237 | free_ego (void *cls, | ||
238 | const struct GNUNET_HashCode *key, | ||
239 | void *value) | ||
240 | { | ||
241 | struct GNUNET_IDENTITY_Handle *h = cls; | ||
242 | struct GNUNET_IDENTITY_Ego *ego = value; | ||
243 | |||
244 | if (NULL != h->cb) | ||
245 | h->cb (h->cb_cls, ego, | ||
246 | &ego->ctx, | ||
247 | NULL); | ||
248 | GNUNET_free (ego->name); | ||
249 | GNUNET_assert (GNUNET_YES == | ||
250 | GNUNET_CONTAINER_multihashmap_remove (h->egos, | ||
251 | key, | ||
252 | value)); | ||
253 | GNUNET_free (ego); | ||
254 | return GNUNET_OK; | ||
255 | } | ||
256 | |||
257 | |||
258 | /** | ||
259 | * Reschedule a connect attempt to the service. | ||
260 | * | ||
261 | * @param h transport service to reconnect | ||
262 | */ | ||
263 | static void | ||
264 | reschedule_connect (struct GNUNET_IDENTITY_Handle *h) | ||
265 | { | ||
266 | struct GNUNET_IDENTITY_Operation *op; | ||
267 | |||
268 | GNUNET_assert (NULL == h->reconnect_task); | ||
269 | |||
270 | if (NULL != h->mq) | ||
271 | { | ||
272 | GNUNET_MQ_destroy (h->mq); | ||
273 | h->mq = NULL; | ||
274 | } | ||
275 | while (NULL != (op = h->op_head)) | ||
276 | { | ||
277 | GNUNET_CONTAINER_DLL_remove (h->op_head, | ||
278 | h->op_tail, | ||
279 | op); | ||
280 | if (NULL != op->cont) | ||
281 | op->cont (op->cls, | ||
282 | "Error in communication with the identity service"); | ||
283 | else if (NULL != op->cb) | ||
284 | op->cb (op->cls, NULL, NULL, NULL); | ||
285 | else if (NULL != op->create_cont) | ||
286 | op->create_cont (op->cls, | ||
287 | NULL, | ||
288 | "Failed to communicate with the identity service"); | ||
289 | GNUNET_free (op); | ||
290 | } | ||
291 | GNUNET_CONTAINER_multihashmap_iterate (h->egos, | ||
292 | &free_ego, | ||
293 | h); | ||
294 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
295 | "Scheduling task to reconnect to identity service in %s.\n", | ||
296 | GNUNET_STRINGS_relative_time_to_string (h->reconnect_delay, | ||
297 | GNUNET_YES)); | ||
298 | h->reconnect_task = | ||
299 | GNUNET_SCHEDULER_add_delayed (h->reconnect_delay, | ||
300 | &reconnect, | ||
301 | h); | ||
302 | h->reconnect_delay = GNUNET_TIME_STD_BACKOFF (h->reconnect_delay); | ||
303 | } | ||
304 | |||
305 | |||
306 | /** | ||
307 | * Generic error handler, called with the appropriate error code and | ||
308 | * the same closure specified at the creation of the message queue. | ||
309 | * Not every message queue implementation supports an error handler. | ||
310 | * | ||
311 | * @param cls closure with the `struct GNUNET_IDENTITY_Handle *` | ||
312 | * @param error error code | ||
313 | */ | ||
314 | static void | ||
315 | mq_error_handler (void *cls, | ||
316 | enum GNUNET_MQ_Error error) | ||
317 | { | ||
318 | struct GNUNET_IDENTITY_Handle *h = cls; | ||
319 | |||
320 | reschedule_connect (h); | ||
321 | } | ||
322 | |||
323 | |||
324 | /** | ||
325 | * We received a result code from the service. Check the message | ||
326 | * is well-formed. | ||
327 | * | ||
328 | * @param cls closure | ||
329 | * @param rcm result message received | ||
330 | * @return #GNUNET_OK if the message is well-formed | ||
331 | */ | ||
332 | static int | ||
333 | check_identity_result_code (void *cls, | ||
334 | const struct ResultCodeMessage *rcm) | ||
335 | { | ||
336 | if (sizeof(*rcm) != htons (rcm->header.size)) | ||
337 | GNUNET_MQ_check_zero_termination (rcm); | ||
338 | return GNUNET_OK; | ||
339 | } | ||
340 | |||
341 | |||
342 | /** | ||
343 | * We received a result code from the service. | ||
344 | * | ||
345 | * @param cls closure | ||
346 | * @param rcm result message received | ||
347 | */ | ||
348 | static void | ||
349 | handle_identity_result_code (void *cls, | ||
350 | const struct ResultCodeMessage *rcm) | ||
351 | { | ||
352 | struct GNUNET_IDENTITY_Handle *h = cls; | ||
353 | struct GNUNET_IDENTITY_Operation *op; | ||
354 | uint16_t size = ntohs (rcm->header.size) - sizeof(*rcm); | ||
355 | const char *str = (0 == size) ? NULL : (const char *) &rcm[1]; | ||
356 | |||
357 | op = h->op_head; | ||
358 | if (NULL == op) | ||
359 | { | ||
360 | GNUNET_break (0); | ||
361 | reschedule_connect (h); | ||
362 | return; | ||
363 | } | ||
364 | GNUNET_CONTAINER_DLL_remove (h->op_head, h->op_tail, op); | ||
365 | if (NULL != op->cont) | ||
366 | op->cont (op->cls, str); | ||
367 | else if (NULL != op->cb) | ||
368 | op->cb (op->cls, NULL, NULL, NULL); | ||
369 | else if (NULL != op->create_cont) | ||
370 | op->create_cont (op->cls, (NULL == str) ? &op->pk : NULL, str); | ||
371 | GNUNET_free (op); | ||
372 | } | ||
373 | |||
374 | |||
375 | /** | ||
376 | * Check validity of identity update message. | ||
377 | * | ||
378 | * @param cls closure | ||
379 | * @param um message received | ||
380 | * @return #GNUNET_OK if the message is well-formed | ||
381 | */ | ||
382 | static int | ||
383 | check_identity_update (void *cls, | ||
384 | const struct UpdateMessage *um) | ||
385 | { | ||
386 | uint16_t size = ntohs (um->header.size); | ||
387 | uint16_t name_len = ntohs (um->name_len); | ||
388 | const char *str = (const char *) &um[1]; | ||
389 | |||
390 | if ((size != name_len + sizeof(struct UpdateMessage)) || | ||
391 | ((0 != name_len) && ('\0' != str[name_len - 1]))) | ||
392 | { | ||
393 | GNUNET_break (0); | ||
394 | return GNUNET_SYSERR; | ||
395 | } | ||
396 | return GNUNET_OK; | ||
397 | } | ||
398 | |||
399 | |||
400 | /** | ||
401 | * Handle identity update message. | ||
402 | * | ||
403 | * @param cls closure | ||
404 | * @param um message received | ||
405 | */ | ||
406 | static void | ||
407 | handle_identity_update (void *cls, | ||
408 | const struct UpdateMessage *um) | ||
409 | { | ||
410 | struct GNUNET_IDENTITY_Handle *h = cls; | ||
411 | uint16_t name_len = ntohs (um->name_len); | ||
412 | const char *str = (0 == name_len) ? NULL : (const char *) &um[1]; | ||
413 | struct GNUNET_HashCode id; | ||
414 | struct GNUNET_IDENTITY_Ego *ego; | ||
415 | |||
416 | if (GNUNET_YES == ntohs (um->end_of_list)) | ||
417 | { | ||
418 | /* end of initial list of data */ | ||
419 | if (NULL != h->cb) | ||
420 | h->cb (h->cb_cls, NULL, NULL, NULL); | ||
421 | return; | ||
422 | } | ||
423 | GNUNET_CRYPTO_hash (&um->private_key, | ||
424 | sizeof (um->private_key), | ||
425 | &id); | ||
426 | ego = GNUNET_CONTAINER_multihashmap_get (h->egos, | ||
427 | &id); | ||
428 | if (NULL == ego) | ||
429 | { | ||
430 | /* ego was created */ | ||
431 | if (NULL == str) | ||
432 | { | ||
433 | /* deletion of unknown ego? not allowed */ | ||
434 | GNUNET_break (0); | ||
435 | reschedule_connect (h); | ||
436 | return; | ||
437 | } | ||
438 | ego = GNUNET_new (struct GNUNET_IDENTITY_Ego); | ||
439 | ego->pub_initialized = GNUNET_NO; | ||
440 | ego->pk = um->private_key; | ||
441 | ego->name = GNUNET_strdup (str); | ||
442 | ego->id = id; | ||
443 | GNUNET_assert (GNUNET_YES == | ||
444 | GNUNET_CONTAINER_multihashmap_put ( | ||
445 | h->egos, | ||
446 | &ego->id, | ||
447 | ego, | ||
448 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY)); | ||
449 | } | ||
450 | if (NULL == str) | ||
451 | { | ||
452 | /* ego was deleted */ | ||
453 | GNUNET_assert (GNUNET_YES == | ||
454 | GNUNET_CONTAINER_multihashmap_remove (h->egos, | ||
455 | &ego->id, | ||
456 | ego)); | ||
457 | } | ||
458 | else | ||
459 | { | ||
460 | /* ego changed name */ | ||
461 | GNUNET_free (ego->name); | ||
462 | ego->name = GNUNET_strdup (str); | ||
463 | } | ||
464 | /* inform application about change */ | ||
465 | if (NULL != h->cb) | ||
466 | h->cb (h->cb_cls, | ||
467 | ego, | ||
468 | &ego->ctx, | ||
469 | str); | ||
470 | /* complete deletion */ | ||
471 | if (NULL == str) | ||
472 | { | ||
473 | GNUNET_free (ego->name); | ||
474 | GNUNET_free (ego); | ||
475 | } | ||
476 | } | ||
477 | |||
478 | |||
479 | /** | ||
480 | * Function called when we receive a set default message from the | ||
481 | * service. | ||
482 | * | ||
483 | * @param cls closure | ||
484 | * @param sdm message received | ||
485 | * @return #GNUNET_OK if the message is well-formed | ||
486 | */ | ||
487 | static int | ||
488 | check_identity_set_default (void *cls, | ||
489 | const struct SetDefaultMessage *sdm) | ||
490 | { | ||
491 | uint16_t size = ntohs (sdm->header.size) - sizeof(*sdm); | ||
492 | uint16_t name_len = ntohs (sdm->name_len); | ||
493 | const char *str = (const char *) &sdm[1]; | ||
494 | |||
495 | if ((size != name_len) || ((0 != name_len) && ('\0' != str[name_len - 1]))) | ||
496 | { | ||
497 | GNUNET_break (0); | ||
498 | return GNUNET_SYSERR; | ||
499 | } | ||
500 | GNUNET_break (0 == ntohs (sdm->reserved)); | ||
501 | return GNUNET_OK; | ||
502 | } | ||
503 | |||
504 | |||
505 | /** | ||
506 | * Type of a function to call when we receive a message | ||
507 | * from the service. | ||
508 | * | ||
509 | * @param cls closure | ||
510 | * @param sdm message received | ||
511 | */ | ||
512 | static void | ||
513 | handle_identity_set_default (void *cls, | ||
514 | const struct SetDefaultMessage *sdm) | ||
515 | { | ||
516 | struct GNUNET_IDENTITY_Handle *h = cls; | ||
517 | struct GNUNET_IDENTITY_Operation *op; | ||
518 | struct GNUNET_HashCode id; | ||
519 | struct GNUNET_IDENTITY_Ego *ego; | ||
520 | |||
521 | GNUNET_CRYPTO_hash (&sdm->private_key, | ||
522 | sizeof(sdm->private_key), | ||
523 | &id); | ||
524 | ego = GNUNET_CONTAINER_multihashmap_get (h->egos, | ||
525 | &id); | ||
526 | if (NULL == ego) | ||
527 | { | ||
528 | GNUNET_break (0); | ||
529 | reschedule_connect (h); | ||
530 | return; | ||
531 | } | ||
532 | op = h->op_head; | ||
533 | if (NULL == op) | ||
534 | { | ||
535 | GNUNET_break (0); | ||
536 | reschedule_connect (h); | ||
537 | return; | ||
538 | } | ||
539 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
540 | "Received SET_DEFAULT message from identity service\n"); | ||
541 | GNUNET_CONTAINER_DLL_remove (h->op_head, | ||
542 | h->op_tail, | ||
543 | op); | ||
544 | if (NULL != op->cb) | ||
545 | op->cb (op->cls, | ||
546 | ego, | ||
547 | &ego->ctx, | ||
548 | ego->name); | ||
549 | GNUNET_free (op); | ||
550 | } | ||
551 | |||
552 | |||
553 | /** | ||
554 | * Try again to connect to the identity service. | ||
555 | * | ||
556 | * @param cls handle to the identity service. | ||
557 | */ | ||
558 | static void | ||
559 | reconnect (void *cls) | ||
560 | { | ||
561 | struct GNUNET_IDENTITY_Handle *h = cls; | ||
562 | struct GNUNET_MQ_MessageHandler handlers[] = { | ||
563 | GNUNET_MQ_hd_var_size (identity_result_code, | ||
564 | GNUNET_MESSAGE_TYPE_IDENTITY_RESULT_CODE, | ||
565 | struct ResultCodeMessage, | ||
566 | h), | ||
567 | GNUNET_MQ_hd_var_size (identity_update, | ||
568 | GNUNET_MESSAGE_TYPE_IDENTITY_UPDATE, | ||
569 | struct UpdateMessage, | ||
570 | h), | ||
571 | GNUNET_MQ_hd_var_size (identity_set_default, | ||
572 | GNUNET_MESSAGE_TYPE_IDENTITY_SET_DEFAULT, | ||
573 | struct SetDefaultMessage, | ||
574 | h), | ||
575 | GNUNET_MQ_handler_end () | ||
576 | }; | ||
577 | struct GNUNET_MQ_Envelope *env; | ||
578 | struct GNUNET_MessageHeader *msg; | ||
579 | |||
580 | h->reconnect_task = NULL; | ||
581 | LOG (GNUNET_ERROR_TYPE_DEBUG, | ||
582 | "Connecting to identity service.\n"); | ||
583 | GNUNET_assert (NULL == h->mq); | ||
584 | h->mq = GNUNET_CLIENT_connect (h->cfg, | ||
585 | "identity", | ||
586 | handlers, | ||
587 | &mq_error_handler, | ||
588 | h); | ||
589 | if (NULL == h->mq) | ||
590 | return; | ||
591 | if (NULL != h->cb) | ||
592 | { | ||
593 | env = GNUNET_MQ_msg (msg, | ||
594 | GNUNET_MESSAGE_TYPE_IDENTITY_START); | ||
595 | GNUNET_MQ_send (h->mq, | ||
596 | env); | ||
597 | } | ||
598 | } | ||
599 | |||
600 | |||
601 | /** | ||
602 | * Connect to the identity service. | ||
603 | * | ||
604 | * @param cfg the configuration to use | ||
605 | * @param cb function to call on all identity events, can be NULL | ||
606 | * @param cb_cls closure for @a cb | ||
607 | * @return handle to use | ||
608 | */ | ||
609 | struct GNUNET_IDENTITY_Handle * | ||
610 | GNUNET_IDENTITY_connect (const struct GNUNET_CONFIGURATION_Handle *cfg, | ||
611 | GNUNET_IDENTITY_Callback cb, | ||
612 | void *cb_cls) | ||
613 | { | ||
614 | struct GNUNET_IDENTITY_Handle *h; | ||
615 | |||
616 | h = GNUNET_new (struct GNUNET_IDENTITY_Handle); | ||
617 | h->cfg = cfg; | ||
618 | h->cb = cb; | ||
619 | h->cb_cls = cb_cls; | ||
620 | h->egos = GNUNET_CONTAINER_multihashmap_create (16, | ||
621 | GNUNET_YES); | ||
622 | reconnect (h); | ||
623 | if (NULL == h->mq) | ||
624 | { | ||
625 | GNUNET_free (h); | ||
626 | return NULL; | ||
627 | } | ||
628 | return h; | ||
629 | } | ||
630 | |||
631 | |||
632 | /** | ||
633 | * Obtain the ECC key associated with a ego. | ||
634 | * | ||
635 | * @param ego the ego | ||
636 | * @return associated ECC key, valid as long as the ego is valid | ||
637 | */ | ||
638 | const struct GNUNET_IDENTITY_PrivateKey * | ||
639 | GNUNET_IDENTITY_ego_get_private_key (const struct GNUNET_IDENTITY_Ego *ego) | ||
640 | { | ||
641 | return &ego->pk; | ||
642 | } | ||
643 | |||
644 | |||
645 | /** | ||
646 | * Get the identifier (public key) of an ego. | ||
647 | * | ||
648 | * @param ego identity handle with the private key | ||
649 | * @param pk set to ego's public key | ||
650 | */ | ||
651 | void | ||
652 | GNUNET_IDENTITY_ego_get_public_key (struct GNUNET_IDENTITY_Ego *ego, | ||
653 | struct GNUNET_IDENTITY_PublicKey *pk) | ||
654 | { | ||
655 | if (GNUNET_NO == ego->pub_initialized) | ||
656 | { | ||
657 | GNUNET_IDENTITY_key_get_public (&ego->pk, &ego->pub); | ||
658 | ego->pub_initialized = GNUNET_YES; | ||
659 | } | ||
660 | *pk = ego->pub; | ||
661 | } | ||
662 | |||
663 | |||
664 | /** | ||
665 | * Obtain the identity that is currently preferred/default | ||
666 | * for a service. | ||
667 | * | ||
668 | * @param h identity service to query | ||
669 | * @param service_name for which service is an identity wanted | ||
670 | * @param cb function to call with the result (will only be called once) | ||
671 | * @param cb_cls closure for @a cb | ||
672 | * @return handle to abort the operation | ||
673 | */ | ||
674 | struct GNUNET_IDENTITY_Operation * | ||
675 | GNUNET_IDENTITY_get (struct GNUNET_IDENTITY_Handle *h, | ||
676 | const char *service_name, | ||
677 | GNUNET_IDENTITY_Callback cb, | ||
678 | void *cb_cls) | ||
679 | { | ||
680 | struct GNUNET_IDENTITY_Operation *op; | ||
681 | struct GNUNET_MQ_Envelope *env; | ||
682 | struct GetDefaultMessage *gdm; | ||
683 | size_t slen; | ||
684 | |||
685 | if (NULL == h->mq) | ||
686 | return NULL; | ||
687 | GNUNET_assert (NULL != h->cb); | ||
688 | slen = strlen (service_name) + 1; | ||
689 | if (slen >= GNUNET_MAX_MESSAGE_SIZE - sizeof(struct GetDefaultMessage)) | ||
690 | { | ||
691 | GNUNET_break (0); | ||
692 | return NULL; | ||
693 | } | ||
694 | op = GNUNET_new (struct GNUNET_IDENTITY_Operation); | ||
695 | op->h = h; | ||
696 | op->cb = cb; | ||
697 | op->cls = cb_cls; | ||
698 | GNUNET_CONTAINER_DLL_insert_tail (h->op_head, h->op_tail, op); | ||
699 | env = | ||
700 | GNUNET_MQ_msg_extra (gdm, slen, GNUNET_MESSAGE_TYPE_IDENTITY_GET_DEFAULT); | ||
701 | gdm->name_len = htons (slen); | ||
702 | gdm->reserved = htons (0); | ||
703 | GNUNET_memcpy (&gdm[1], service_name, slen); | ||
704 | GNUNET_MQ_send (h->mq, env); | ||
705 | return op; | ||
706 | } | ||
707 | |||
708 | |||
709 | /** | ||
710 | * Set the preferred/default identity for a service. | ||
711 | * | ||
712 | * @param h identity service to inform | ||
713 | * @param service_name for which service is an identity set | ||
714 | * @param ego new default identity to be set for this service | ||
715 | * @param cont function to call once the operation finished | ||
716 | * @param cont_cls closure for @a cont | ||
717 | * @return handle to abort the operation | ||
718 | */ | ||
719 | struct GNUNET_IDENTITY_Operation * | ||
720 | GNUNET_IDENTITY_set (struct GNUNET_IDENTITY_Handle *h, | ||
721 | const char *service_name, | ||
722 | struct GNUNET_IDENTITY_Ego *ego, | ||
723 | GNUNET_IDENTITY_Continuation cont, | ||
724 | void *cont_cls) | ||
725 | { | ||
726 | struct GNUNET_IDENTITY_Operation *op; | ||
727 | struct GNUNET_MQ_Envelope *env; | ||
728 | struct SetDefaultMessage *sdm; | ||
729 | size_t slen; | ||
730 | |||
731 | if (NULL == h->mq) | ||
732 | return NULL; | ||
733 | GNUNET_assert (NULL != h->cb); | ||
734 | slen = strlen (service_name) + 1; | ||
735 | if (slen >= GNUNET_MAX_MESSAGE_SIZE - sizeof(struct SetDefaultMessage)) | ||
736 | { | ||
737 | GNUNET_break (0); | ||
738 | return NULL; | ||
739 | } | ||
740 | op = GNUNET_new (struct GNUNET_IDENTITY_Operation); | ||
741 | op->h = h; | ||
742 | op->cont = cont; | ||
743 | op->cls = cont_cls; | ||
744 | GNUNET_CONTAINER_DLL_insert_tail (h->op_head, h->op_tail, op); | ||
745 | env = | ||
746 | GNUNET_MQ_msg_extra (sdm, slen, GNUNET_MESSAGE_TYPE_IDENTITY_SET_DEFAULT); | ||
747 | sdm->name_len = htons (slen); | ||
748 | sdm->reserved = htons (0); | ||
749 | sdm->private_key = ego->pk; | ||
750 | GNUNET_memcpy (&sdm[1], service_name, slen); | ||
751 | GNUNET_MQ_send (h->mq, env); | ||
752 | return op; | ||
753 | } | ||
754 | |||
755 | |||
756 | struct GNUNET_IDENTITY_Operation * | ||
757 | GNUNET_IDENTITY_create (struct GNUNET_IDENTITY_Handle *h, | ||
758 | const char *name, | ||
759 | const struct GNUNET_IDENTITY_PrivateKey *privkey, | ||
760 | enum GNUNET_IDENTITY_KeyType ktype, | ||
761 | GNUNET_IDENTITY_CreateContinuation cont, | ||
762 | void *cont_cls) | ||
763 | { | ||
764 | struct GNUNET_IDENTITY_Operation *op; | ||
765 | struct GNUNET_MQ_Envelope *env; | ||
766 | struct CreateRequestMessage *crm; | ||
767 | size_t slen; | ||
768 | |||
769 | if (NULL == h->mq) | ||
770 | return NULL; | ||
771 | slen = strlen (name) + 1; | ||
772 | if (slen >= GNUNET_MAX_MESSAGE_SIZE - sizeof(struct CreateRequestMessage)) | ||
773 | { | ||
774 | GNUNET_break (0); | ||
775 | return NULL; | ||
776 | } | ||
777 | op = GNUNET_new (struct GNUNET_IDENTITY_Operation); | ||
778 | op->h = h; | ||
779 | op->create_cont = cont; | ||
780 | op->cls = cont_cls; | ||
781 | GNUNET_CONTAINER_DLL_insert_tail (h->op_head, h->op_tail, op); | ||
782 | env = GNUNET_MQ_msg_extra (crm, slen, GNUNET_MESSAGE_TYPE_IDENTITY_CREATE); | ||
783 | crm->name_len = htons (slen); | ||
784 | crm->reserved = htons (0); | ||
785 | if (NULL == privkey) | ||
786 | { | ||
787 | GNUNET_assert (GNUNET_OK == | ||
788 | private_key_create (ktype, &crm->private_key)); | ||
789 | } | ||
790 | else | ||
791 | crm->private_key = *privkey; | ||
792 | op->pk = crm->private_key; | ||
793 | GNUNET_memcpy (&crm[1], name, slen); | ||
794 | GNUNET_MQ_send (h->mq, env); | ||
795 | return op; | ||
796 | } | ||
797 | |||
798 | |||
799 | /** | ||
800 | * Renames an existing identity. | ||
801 | * | ||
802 | * @param h identity service to use | ||
803 | * @param old_name old name | ||
804 | * @param new_name desired new name | ||
805 | * @param cb function to call with the result (will only be called once) | ||
806 | * @param cb_cls closure for @a cb | ||
807 | * @return handle to abort the operation | ||
808 | */ | ||
809 | struct GNUNET_IDENTITY_Operation * | ||
810 | GNUNET_IDENTITY_rename (struct GNUNET_IDENTITY_Handle *h, | ||
811 | const char *old_name, | ||
812 | const char *new_name, | ||
813 | GNUNET_IDENTITY_Continuation cb, | ||
814 | void *cb_cls) | ||
815 | { | ||
816 | struct GNUNET_IDENTITY_Operation *op; | ||
817 | struct GNUNET_MQ_Envelope *env; | ||
818 | struct RenameMessage *grm; | ||
819 | size_t slen_old; | ||
820 | size_t slen_new; | ||
821 | char *dst; | ||
822 | |||
823 | if (NULL == h->mq) | ||
824 | return NULL; | ||
825 | slen_old = strlen (old_name) + 1; | ||
826 | slen_new = strlen (new_name) + 1; | ||
827 | if ((slen_old >= GNUNET_MAX_MESSAGE_SIZE) || | ||
828 | (slen_new >= GNUNET_MAX_MESSAGE_SIZE) || | ||
829 | (slen_old + slen_new >= | ||
830 | GNUNET_MAX_MESSAGE_SIZE - sizeof(struct RenameMessage))) | ||
831 | { | ||
832 | GNUNET_break (0); | ||
833 | return NULL; | ||
834 | } | ||
835 | op = GNUNET_new (struct GNUNET_IDENTITY_Operation); | ||
836 | op->h = h; | ||
837 | op->cont = cb; | ||
838 | op->cls = cb_cls; | ||
839 | GNUNET_CONTAINER_DLL_insert_tail (h->op_head, h->op_tail, op); | ||
840 | env = GNUNET_MQ_msg_extra (grm, | ||
841 | slen_old + slen_new, | ||
842 | GNUNET_MESSAGE_TYPE_IDENTITY_RENAME); | ||
843 | grm->old_name_len = htons (slen_old); | ||
844 | grm->new_name_len = htons (slen_new); | ||
845 | dst = (char *) &grm[1]; | ||
846 | GNUNET_memcpy (dst, old_name, slen_old); | ||
847 | GNUNET_memcpy (&dst[slen_old], new_name, slen_new); | ||
848 | GNUNET_MQ_send (h->mq, env); | ||
849 | return op; | ||
850 | } | ||
851 | |||
852 | |||
853 | /** | ||
854 | * Delete an existing identity. | ||
855 | * | ||
856 | * @param h identity service to use | ||
857 | * @param name name of the identity to delete | ||
858 | * @param cb function to call with the result (will only be called once) | ||
859 | * @param cb_cls closure for @a cb | ||
860 | * @return handle to abort the operation | ||
861 | */ | ||
862 | struct GNUNET_IDENTITY_Operation * | ||
863 | GNUNET_IDENTITY_delete (struct GNUNET_IDENTITY_Handle *h, | ||
864 | const char *name, | ||
865 | GNUNET_IDENTITY_Continuation cb, | ||
866 | void *cb_cls) | ||
867 | { | ||
868 | struct GNUNET_IDENTITY_Operation *op; | ||
869 | struct GNUNET_MQ_Envelope *env; | ||
870 | struct DeleteMessage *gdm; | ||
871 | size_t slen; | ||
872 | |||
873 | if (NULL == h->mq) | ||
874 | return NULL; | ||
875 | slen = strlen (name) + 1; | ||
876 | if (slen >= GNUNET_MAX_MESSAGE_SIZE - sizeof(struct DeleteMessage)) | ||
877 | { | ||
878 | GNUNET_break (0); | ||
879 | return NULL; | ||
880 | } | ||
881 | op = GNUNET_new (struct GNUNET_IDENTITY_Operation); | ||
882 | op->h = h; | ||
883 | op->cont = cb; | ||
884 | op->cls = cb_cls; | ||
885 | GNUNET_CONTAINER_DLL_insert_tail (h->op_head, h->op_tail, op); | ||
886 | env = GNUNET_MQ_msg_extra (gdm, slen, GNUNET_MESSAGE_TYPE_IDENTITY_DELETE); | ||
887 | gdm->name_len = htons (slen); | ||
888 | gdm->reserved = htons (0); | ||
889 | GNUNET_memcpy (&gdm[1], name, slen); | ||
890 | GNUNET_MQ_send (h->mq, env); | ||
891 | return op; | ||
892 | } | ||
893 | |||
894 | |||
895 | /** | ||
896 | * Cancel an identity operation. Note that the operation MAY still | ||
897 | * be executed; this merely cancels the continuation; if the request | ||
898 | * was already transmitted, the service may still choose to complete | ||
899 | * the operation. | ||
900 | * | ||
901 | * @param op operation to cancel | ||
902 | */ | ||
903 | void | ||
904 | GNUNET_IDENTITY_cancel (struct GNUNET_IDENTITY_Operation *op) | ||
905 | { | ||
906 | op->cont = NULL; | ||
907 | op->cb = NULL; | ||
908 | op->create_cont = NULL; | ||
909 | memset (&op->pk, | ||
910 | 0, | ||
911 | sizeof (op->pk)); | ||
912 | } | ||
913 | |||
914 | |||
915 | /** | ||
916 | * Disconnect from identity service | ||
917 | * | ||
918 | * @param h handle to destroy | ||
919 | */ | ||
920 | void | ||
921 | GNUNET_IDENTITY_disconnect (struct GNUNET_IDENTITY_Handle *h) | ||
922 | { | ||
923 | struct GNUNET_IDENTITY_Operation *op; | ||
924 | |||
925 | GNUNET_assert (NULL != h); | ||
926 | if (h->reconnect_task != NULL) | ||
927 | { | ||
928 | GNUNET_SCHEDULER_cancel (h->reconnect_task); | ||
929 | h->reconnect_task = NULL; | ||
930 | } | ||
931 | if (NULL != h->egos) | ||
932 | { | ||
933 | GNUNET_CONTAINER_multihashmap_iterate (h->egos, | ||
934 | &free_ego, | ||
935 | h); | ||
936 | GNUNET_CONTAINER_multihashmap_destroy (h->egos); | ||
937 | h->egos = NULL; | ||
938 | } | ||
939 | while (NULL != (op = h->op_head)) | ||
940 | { | ||
941 | GNUNET_break (NULL == op->cont); | ||
942 | GNUNET_CONTAINER_DLL_remove (h->op_head, h->op_tail, op); | ||
943 | memset (&op->pk, | ||
944 | 0, | ||
945 | sizeof (op->pk)); | ||
946 | GNUNET_free (op); | ||
947 | } | ||
948 | if (NULL != h->mq) | ||
949 | { | ||
950 | GNUNET_MQ_destroy (h->mq); | ||
951 | h->mq = NULL; | ||
952 | } | ||
953 | GNUNET_free (h); | ||
954 | } | ||
955 | |||
956 | |||
957 | static enum GNUNET_GenericReturnValue | ||
958 | check_key_type (uint32_t type) | ||
959 | { | ||
960 | switch (type) | ||
961 | { | ||
962 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
963 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
964 | return GNUNET_OK; | ||
965 | default: | ||
966 | return GNUNET_SYSERR; | ||
967 | } | ||
968 | return GNUNET_SYSERR; | ||
969 | } | ||
970 | |||
971 | |||
972 | static ssize_t | ||
973 | private_key_get_length (const struct GNUNET_IDENTITY_PrivateKey *key) | ||
974 | { | ||
975 | switch (ntohl (key->type)) | ||
976 | { | ||
977 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
978 | return sizeof (key->type) + sizeof (key->ecdsa_key); | ||
979 | break; | ||
980 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
981 | return sizeof (key->type) + sizeof (key->eddsa_key); | ||
982 | break; | ||
983 | default: | ||
984 | GNUNET_break (0); | ||
985 | } | ||
986 | return -1; | ||
987 | } | ||
988 | |||
989 | |||
990 | ssize_t | ||
991 | GNUNET_IDENTITY_key_get_length (const struct GNUNET_IDENTITY_PublicKey *key) | ||
992 | { | ||
993 | switch (ntohl (key->type)) | ||
994 | { | ||
995 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
996 | return sizeof (key->type) + sizeof (key->ecdsa_key); | ||
997 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
998 | return sizeof (key->type) + sizeof (key->eddsa_key); | ||
999 | default: | ||
1000 | GNUNET_break (0); | ||
1001 | } | ||
1002 | return -1; | ||
1003 | } | ||
1004 | |||
1005 | |||
1006 | ssize_t | ||
1007 | GNUNET_IDENTITY_read_key_from_buffer (struct GNUNET_IDENTITY_PublicKey *key, | ||
1008 | const void *buffer, | ||
1009 | size_t len) | ||
1010 | { | ||
1011 | if (len < sizeof (key->type)) | ||
1012 | return -1; | ||
1013 | GNUNET_memcpy (&key->type, | ||
1014 | buffer, | ||
1015 | sizeof (key->type)); | ||
1016 | ssize_t length = GNUNET_IDENTITY_key_get_length (key); | ||
1017 | if (len < length) | ||
1018 | return -1; | ||
1019 | if (length < 0) | ||
1020 | return -2; | ||
1021 | GNUNET_memcpy (&key->ecdsa_key, | ||
1022 | buffer + sizeof (key->type), | ||
1023 | length - sizeof (key->type)); | ||
1024 | return length; | ||
1025 | } | ||
1026 | |||
1027 | |||
1028 | ssize_t | ||
1029 | GNUNET_IDENTITY_write_key_to_buffer (const struct | ||
1030 | GNUNET_IDENTITY_PublicKey *key, | ||
1031 | void*buffer, | ||
1032 | size_t len) | ||
1033 | { | ||
1034 | const ssize_t length = GNUNET_IDENTITY_key_get_length (key); | ||
1035 | if (len < length) | ||
1036 | return -1; | ||
1037 | if (length < 0) | ||
1038 | return -2; | ||
1039 | GNUNET_memcpy (buffer, &(key->type), sizeof (key->type)); | ||
1040 | GNUNET_memcpy (buffer + sizeof (key->type), &(key->ecdsa_key), length | ||
1041 | - sizeof (key->type)); | ||
1042 | return length; | ||
1043 | } | ||
1044 | |||
1045 | |||
1046 | ssize_t | ||
1047 | GNUNET_IDENTITY_signature_get_length (const struct | ||
1048 | GNUNET_IDENTITY_Signature *sig) | ||
1049 | { | ||
1050 | switch (ntohl (sig->type)) | ||
1051 | { | ||
1052 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
1053 | return sizeof (sig->type) + sizeof (sig->ecdsa_signature); | ||
1054 | break; | ||
1055 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
1056 | return sizeof (sig->type) + sizeof (sig->eddsa_signature); | ||
1057 | break; | ||
1058 | default: | ||
1059 | GNUNET_break (0); | ||
1060 | } | ||
1061 | return -1; | ||
1062 | } | ||
1063 | |||
1064 | |||
1065 | ssize_t | ||
1066 | GNUNET_IDENTITY_signature_get_raw_length_by_type (uint32_t type) | ||
1067 | { | ||
1068 | switch (ntohl (type)) | ||
1069 | { | ||
1070 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
1071 | return sizeof (struct GNUNET_CRYPTO_EcdsaSignature); | ||
1072 | break; | ||
1073 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
1074 | return sizeof (struct GNUNET_CRYPTO_EddsaSignature); | ||
1075 | break; | ||
1076 | default: | ||
1077 | GNUNET_break (0); | ||
1078 | } | ||
1079 | return -1; | ||
1080 | } | ||
1081 | |||
1082 | |||
1083 | |||
1084 | ssize_t | ||
1085 | GNUNET_IDENTITY_read_signature_from_buffer (struct | ||
1086 | GNUNET_IDENTITY_Signature *sig, | ||
1087 | const void*buffer, | ||
1088 | size_t len) | ||
1089 | { | ||
1090 | if (len < sizeof (sig->type)) | ||
1091 | return -1; | ||
1092 | GNUNET_memcpy (&(sig->type), buffer, sizeof (sig->type)); | ||
1093 | const ssize_t length = GNUNET_IDENTITY_signature_get_length (sig); | ||
1094 | if (len < length) | ||
1095 | return -1; | ||
1096 | if (length < 0) | ||
1097 | return -2; | ||
1098 | GNUNET_memcpy (&(sig->ecdsa_signature), buffer + sizeof (sig->type), length | ||
1099 | - sizeof (sig->type)); | ||
1100 | return length; | ||
1101 | } | ||
1102 | |||
1103 | |||
1104 | ssize_t | ||
1105 | GNUNET_IDENTITY_write_signature_to_buffer (const struct | ||
1106 | GNUNET_IDENTITY_Signature *sig, | ||
1107 | void*buffer, | ||
1108 | size_t len) | ||
1109 | { | ||
1110 | const ssize_t length = GNUNET_IDENTITY_signature_get_length (sig); | ||
1111 | if (len < length) | ||
1112 | return -1; | ||
1113 | if (length < 0) | ||
1114 | return -2; | ||
1115 | GNUNET_memcpy (buffer, &(sig->type), sizeof (sig->type)); | ||
1116 | GNUNET_memcpy (buffer + sizeof (sig->type), &(sig->ecdsa_signature), length | ||
1117 | - sizeof (sig->type)); | ||
1118 | return length; | ||
1119 | } | ||
1120 | |||
1121 | enum GNUNET_GenericReturnValue | ||
1122 | GNUNET_IDENTITY_sign_raw_ (const struct | ||
1123 | GNUNET_IDENTITY_PrivateKey *priv, | ||
1124 | const struct | ||
1125 | GNUNET_CRYPTO_EccSignaturePurpose *purpose, | ||
1126 | unsigned char *sig) | ||
1127 | { | ||
1128 | switch (ntohl (priv->type)) | ||
1129 | { | ||
1130 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
1131 | return GNUNET_CRYPTO_ecdsa_sign_ (&(priv->ecdsa_key), purpose, | ||
1132 | (struct GNUNET_CRYPTO_EcdsaSignature*)sig); | ||
1133 | break; | ||
1134 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
1135 | return GNUNET_CRYPTO_eddsa_sign_ (&(priv->eddsa_key), purpose, | ||
1136 | (struct GNUNET_CRYPTO_EddsaSignature*)sig); | ||
1137 | break; | ||
1138 | default: | ||
1139 | GNUNET_break (0); | ||
1140 | } | ||
1141 | |||
1142 | return GNUNET_SYSERR; | ||
1143 | } | ||
1144 | |||
1145 | |||
1146 | |||
1147 | enum GNUNET_GenericReturnValue | ||
1148 | GNUNET_IDENTITY_sign_ (const struct | ||
1149 | GNUNET_IDENTITY_PrivateKey *priv, | ||
1150 | const struct | ||
1151 | GNUNET_CRYPTO_EccSignaturePurpose *purpose, | ||
1152 | struct GNUNET_IDENTITY_Signature *sig) | ||
1153 | { | ||
1154 | sig->type = priv->type; | ||
1155 | switch (ntohl (priv->type)) | ||
1156 | { | ||
1157 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
1158 | return GNUNET_CRYPTO_ecdsa_sign_ (&(priv->ecdsa_key), purpose, | ||
1159 | &(sig->ecdsa_signature)); | ||
1160 | break; | ||
1161 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
1162 | return GNUNET_CRYPTO_eddsa_sign_ (&(priv->eddsa_key), purpose, | ||
1163 | &(sig->eddsa_signature)); | ||
1164 | break; | ||
1165 | default: | ||
1166 | GNUNET_break (0); | ||
1167 | } | ||
1168 | |||
1169 | return GNUNET_SYSERR; | ||
1170 | } | ||
1171 | |||
1172 | |||
1173 | enum GNUNET_GenericReturnValue | ||
1174 | GNUNET_IDENTITY_signature_verify_ (uint32_t purpose, | ||
1175 | const struct | ||
1176 | GNUNET_CRYPTO_EccSignaturePurpose *validate, | ||
1177 | const struct GNUNET_IDENTITY_Signature *sig, | ||
1178 | const struct GNUNET_IDENTITY_PublicKey *pub) | ||
1179 | { | ||
1180 | /* check type matching of 'sig' and 'pub' */ | ||
1181 | GNUNET_assert (ntohl (pub->type) == ntohl (sig->type)); | ||
1182 | switch (ntohl (pub->type)) | ||
1183 | { | ||
1184 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
1185 | return GNUNET_CRYPTO_ecdsa_verify_ (purpose, validate, | ||
1186 | &(sig->ecdsa_signature), | ||
1187 | &(pub->ecdsa_key)); | ||
1188 | break; | ||
1189 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
1190 | return GNUNET_CRYPTO_eddsa_verify_ (purpose, validate, | ||
1191 | &(sig->eddsa_signature), | ||
1192 | &(pub->eddsa_key)); | ||
1193 | break; | ||
1194 | default: | ||
1195 | GNUNET_break (0); | ||
1196 | } | ||
1197 | |||
1198 | return GNUNET_SYSERR; | ||
1199 | } | ||
1200 | |||
1201 | |||
1202 | enum GNUNET_GenericReturnValue | ||
1203 | GNUNET_IDENTITY_signature_verify_raw_ (uint32_t purpose, | ||
1204 | const struct | ||
1205 | GNUNET_CRYPTO_EccSignaturePurpose * | ||
1206 | validate, | ||
1207 | const unsigned char *sig, | ||
1208 | const struct | ||
1209 | GNUNET_IDENTITY_PublicKey *pub) | ||
1210 | { | ||
1211 | switch (ntohl (pub->type)) | ||
1212 | { | ||
1213 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
1214 | return GNUNET_CRYPTO_ecdsa_verify_ (purpose, validate, | ||
1215 | (struct GNUNET_CRYPTO_EcdsaSignature*)sig, | ||
1216 | &(pub->ecdsa_key)); | ||
1217 | break; | ||
1218 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
1219 | return GNUNET_CRYPTO_eddsa_verify_ (purpose, validate, | ||
1220 | (struct GNUNET_CRYPTO_EddsaSignature*)sig, | ||
1221 | &(pub->eddsa_key)); | ||
1222 | break; | ||
1223 | default: | ||
1224 | GNUNET_break (0); | ||
1225 | } | ||
1226 | |||
1227 | return GNUNET_SYSERR; | ||
1228 | } | ||
1229 | |||
1230 | |||
1231 | |||
1232 | |||
1233 | ssize_t | ||
1234 | GNUNET_IDENTITY_encrypt (const void *block, | ||
1235 | size_t size, | ||
1236 | const struct GNUNET_IDENTITY_PublicKey *pub, | ||
1237 | struct GNUNET_CRYPTO_EcdhePublicKey *ecc, | ||
1238 | void *result) | ||
1239 | { | ||
1240 | struct GNUNET_CRYPTO_EcdhePrivateKey pk; | ||
1241 | GNUNET_CRYPTO_ecdhe_key_create (&pk); | ||
1242 | struct GNUNET_HashCode hash; | ||
1243 | switch (ntohl (pub->type)) | ||
1244 | { | ||
1245 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
1246 | if (GNUNET_SYSERR == GNUNET_CRYPTO_ecdh_ecdsa (&pk, &(pub->ecdsa_key), | ||
1247 | &hash)) | ||
1248 | return -1; | ||
1249 | break; | ||
1250 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
1251 | if (GNUNET_SYSERR == GNUNET_CRYPTO_ecdh_eddsa (&pk, &(pub->eddsa_key), | ||
1252 | &hash)) | ||
1253 | return -1; | ||
1254 | break; | ||
1255 | default: | ||
1256 | return -1; | ||
1257 | } | ||
1258 | GNUNET_CRYPTO_ecdhe_key_get_public (&pk, ecc); | ||
1259 | GNUNET_CRYPTO_ecdhe_key_clear (&pk); | ||
1260 | struct GNUNET_CRYPTO_SymmetricSessionKey key; | ||
1261 | struct GNUNET_CRYPTO_SymmetricInitializationVector iv; | ||
1262 | GNUNET_CRYPTO_hash_to_aes_key (&hash, &key, &iv); | ||
1263 | GNUNET_CRYPTO_zero_keys (&hash, sizeof(hash)); | ||
1264 | const ssize_t encrypted = GNUNET_CRYPTO_symmetric_encrypt (block, size, &key, | ||
1265 | &iv, result); | ||
1266 | GNUNET_CRYPTO_zero_keys (&key, sizeof(key)); | ||
1267 | GNUNET_CRYPTO_zero_keys (&iv, sizeof(iv)); | ||
1268 | return encrypted; | ||
1269 | } | ||
1270 | |||
1271 | |||
1272 | ssize_t | ||
1273 | GNUNET_IDENTITY_decrypt (const void *block, | ||
1274 | size_t size, | ||
1275 | const struct GNUNET_IDENTITY_PrivateKey *priv, | ||
1276 | const struct GNUNET_CRYPTO_EcdhePublicKey *ecc, | ||
1277 | void *result) | ||
1278 | { | ||
1279 | struct GNUNET_HashCode hash; | ||
1280 | switch (ntohl (priv->type)) | ||
1281 | { | ||
1282 | case GNUNET_IDENTITY_TYPE_ECDSA: | ||
1283 | if (GNUNET_SYSERR == GNUNET_CRYPTO_ecdsa_ecdh (&(priv->ecdsa_key), ecc, | ||
1284 | &hash)) | ||
1285 | return -1; | ||
1286 | break; | ||
1287 | case GNUNET_IDENTITY_TYPE_EDDSA: | ||
1288 | if (GNUNET_SYSERR == GNUNET_CRYPTO_eddsa_ecdh (&(priv->eddsa_key), ecc, | ||
1289 | &hash)) | ||
1290 | return -1; | ||
1291 | break; | ||
1292 | default: | ||
1293 | return -1; | ||
1294 | } | ||
1295 | struct GNUNET_CRYPTO_SymmetricSessionKey key; | ||
1296 | struct GNUNET_CRYPTO_SymmetricInitializationVector iv; | ||
1297 | GNUNET_CRYPTO_hash_to_aes_key (&hash, &key, &iv); | ||
1298 | GNUNET_CRYPTO_zero_keys (&hash, sizeof(hash)); | ||
1299 | const ssize_t decrypted = GNUNET_CRYPTO_symmetric_decrypt (block, size, &key, | ||
1300 | &iv, result); | ||
1301 | GNUNET_CRYPTO_zero_keys (&key, sizeof(key)); | ||
1302 | GNUNET_CRYPTO_zero_keys (&iv, sizeof(iv)); | ||
1303 | return decrypted; | ||
1304 | } | ||
1305 | |||
1306 | |||
1307 | char * | ||
1308 | GNUNET_IDENTITY_public_key_to_string (const struct | ||
1309 | GNUNET_IDENTITY_PublicKey *key) | ||
1310 | { | ||
1311 | size_t size = GNUNET_IDENTITY_key_get_length (key); | ||
1312 | return GNUNET_STRINGS_data_to_string_alloc (key, | ||
1313 | size); | ||
1314 | } | ||
1315 | |||
1316 | |||
1317 | char * | ||
1318 | GNUNET_IDENTITY_private_key_to_string (const struct | ||
1319 | GNUNET_IDENTITY_PrivateKey *key) | ||
1320 | { | ||
1321 | size_t size = private_key_get_length (key); | ||
1322 | return GNUNET_STRINGS_data_to_string_alloc (key, | ||
1323 | size); | ||
1324 | } | ||
1325 | |||
1326 | enum GNUNET_GenericReturnValue | ||
1327 | GNUNET_IDENTITY_public_key_from_string (const char *str, | ||
1328 | struct GNUNET_IDENTITY_PublicKey *key) | ||
1329 | { | ||
1330 | enum GNUNET_GenericReturnValue ret; | ||
1331 | ret = GNUNET_STRINGS_string_to_data (str, | ||
1332 | strlen (str), | ||
1333 | key, | ||
1334 | sizeof (*key)); | ||
1335 | if (GNUNET_OK != ret) | ||
1336 | return GNUNET_SYSERR; | ||
1337 | return check_key_type (ntohl (key->type)); | ||
1338 | |||
1339 | } | ||
1340 | |||
1341 | |||
1342 | enum GNUNET_GenericReturnValue | ||
1343 | GNUNET_IDENTITY_private_key_from_string (const char *str, | ||
1344 | struct GNUNET_IDENTITY_PrivateKey *key) | ||
1345 | { | ||
1346 | enum GNUNET_GenericReturnValue ret; | ||
1347 | ret = GNUNET_STRINGS_string_to_data (str, | ||
1348 | strlen (str), | ||
1349 | key, | ||
1350 | sizeof (*key)); | ||
1351 | if (GNUNET_OK != ret) | ||
1352 | return GNUNET_SYSERR; | ||
1353 | return check_key_type (ntohl (key->type)); | ||
1354 | } | ||
1355 | |||
1356 | |||
1357 | /* end of identity_api.c */ | ||