GNUnet 0.28.0-dev.3-7-g31e20e2e6
 
Loading...
Searching...
No Matches
Functions | Variables
plugin_gnsrecord_messenger.c File Reference
#include "gnunet_common.h"
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnu_name_system_record_types.h"
#include "gnunet_messenger_service.h"
#include "gnunet_gnsrecord_plugin.h"
Include dependency graph for plugin_gnsrecord_messenger.c:

Go to the source code of this file.

Functions

static char * messenger_value_to_string (void *cls, uint32_t type, const void *data, size_t data_size)
 Convert the 'value' of a record to a string.
 
static int messenger_string_to_value (void *cls, uint32_t type, const char *s, void **data, size_t *data_size)
 Convert human-readable version of a 'value' of a record to the binary representation.
 
static uint32_t messenger_typename_to_number (void *cls, const char *gns_typename)
 Convert a type name (e.g.
 
static const char * messenger_number_to_typename (void *cls, uint32_t type)
 Convert a type number to the corresponding type string (e.g.
 
void * libgnunet_plugin_gnsrecord_messenger_init (void *cls)
 Entry point for the plugin.
 
void * libgnunet_plugin_gnsrecord_messenger_done (void *cls)
 Exit point from the plugin.
 

Variables

struct { 
 
   const char *   name 
 
   uint32_t   number 
 
} name_map [] 
 Mapping of record type numbers to human-readable record type names.
 

Function Documentation

◆ messenger_value_to_string()

static char * messenger_value_to_string ( void *  cls,
uint32_t  type,
const void *  data,
size_t  data_size 
)
static

Convert the 'value' of a record to a string.

Parameters
clsclosure, unused
typetype of the record
datavalue in binary encoding
data_sizenumber of bytes in data
Returns
NULL on error, otherwise human-readable representation of the value

Definition at line 45 of file plugin_gnsrecord_messenger.c.

49{
50 (void) cls;
51 switch (type)
52 {
53 case GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_ENTRY:
54 {
55 if (data_size != sizeof(struct GNUNET_MESSENGER_RoomEntryRecord))
56 {
57 GNUNET_break_op (0);
58 return NULL;
59 }
60 {
61 const struct GNUNET_MESSENGER_RoomEntryRecord *record = data;
62
63 char *door = GNUNET_CRYPTO_eddsa_public_key_to_string (
64 &(record->door.public_key));
65 char *key = GNUNET_STRINGS_data_to_string_alloc (
66 &(record->key), sizeof(struct GNUNET_HashCode));
67
68 char *ret;
69 GNUNET_asprintf (&ret, "%s-%s", key, door);
70 GNUNET_free (key);
71 GNUNET_free (door);
72 return ret;
73 }
74 }
75 case GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_DETAILS:
76 {
77 if (data_size != sizeof(struct GNUNET_MESSENGER_RoomDetailsRecord))
78 {
79 GNUNET_break_op (0);
80 return NULL;
81 }
82 {
83 const struct GNUNET_MESSENGER_RoomDetailsRecord *record = data;
84
85 char *name = GNUNET_strndup (record->name, 256);
86 char *flags = GNUNET_STRINGS_data_to_string_alloc (
87 &(record->flags), sizeof(uint32_t));
88
89 char *ret;
90 GNUNET_asprintf (&ret, "%s-%s", flags, name);
91 GNUNET_free (flags);
92 GNUNET_free (name);
93 return ret;
94 }
95 }
96 case GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_EPOCH_KEY:
97 {
98 if (data_size != sizeof(struct GNUNET_MESSENGER_RoomEpochKeyRecord))
99 {
100 GNUNET_break_op (0);
101 return NULL;
102 }
103 {
104 const struct GNUNET_MESSENGER_RoomEpochKeyRecord *record = data;
105
106 char *key = GNUNET_STRINGS_data_to_string_alloc (
107 &(record->key),
108 sizeof(struct GNUNET_HashCode));
109 char *hash = GNUNET_STRINGS_data_to_string_alloc (
110 &(record->hash),
111 sizeof(struct GNUNET_HashCode));
112 char *identifier = GNUNET_STRINGS_data_to_string_alloc (
113 &(record->identifier),
114 sizeof(struct GNUNET_ShortHashCode));
115 char *nonce = GNUNET_STRINGS_data_to_string_alloc (
116 &(record->nonce),
117 sizeof(record->nonce));
118 char *mac = GNUNET_STRINGS_data_to_string_alloc (
119 &(record->mac),
120 sizeof(record->mac));
121 char *shared_key = GNUNET_STRINGS_data_to_string_alloc (
122 &(record->shared_key),
123 sizeof(record->shared_key));
124 char *flags = GNUNET_STRINGS_data_to_string_alloc (
125 &(record->flags),
126 sizeof(uint32_t));
127
128 char *ret;
129 GNUNET_asprintf (
130 &ret,
131 "%s-%s-%s-%s-%s-%s-%s",
132 flags,
133 shared_key,
134 mac,
135 nonce,
136 identifier,
137 hash,
138 key);
139
140 GNUNET_free (flags);
141 GNUNET_free (shared_key);
142 GNUNET_free (mac);
143 GNUNET_free (nonce);
144 GNUNET_free (identifier);
145 GNUNET_free (hash);
146 GNUNET_free (key);
147 return ret;
148 }
149 }
150 case GNUNET_GNSRECORD_TYPE_MESSENGER_ENCRYPTION_KEY:
151 {
152 if (data_size != sizeof(struct GNUNET_MESSENGER_EncryptionKeyRecord))
153 {
154 GNUNET_break_op (0);
155 return NULL;
156 }
157 {
158 const struct GNUNET_MESSENGER_EncryptionKeyRecord *record = data;
159
160 char *key = GNUNET_STRINGS_data_to_string_alloc (
161 &(record->key),
162 sizeof(struct GNUNET_HashCode));
163 char *nonce = GNUNET_STRINGS_data_to_string_alloc (
164 &(record->nonce),
165 sizeof(record->nonce));
166 char *mac = GNUNET_STRINGS_data_to_string_alloc (
167 &(record->mac),
168 sizeof(record->mac));
169 char *encryption_key_length = GNUNET_STRINGS_data_to_string_alloc (
170 &(record->encrypted_key_length),
171 sizeof(record->encrypted_key_length));
172 char *encryption_key = GNUNET_STRINGS_data_to_string_alloc (
173 &(record->encrypted_key_data),
174 sizeof(record->encrypted_key_data));
175
176 char *ret;
177 GNUNET_asprintf (
178 &ret,
179 "%s-%s-%s-%s-%s",
180 encryption_key,
181 encryption_key_length,
182 mac,
183 nonce,
184 key);
185
186 GNUNET_free (encryption_key);
187 GNUNET_free (encryption_key_length);
188 GNUNET_free (mac);
189 GNUNET_free (nonce);
190 GNUNET_free (key);
191 return ret;
192 }
193 }
194 default:
195 return NULL;
196 }
197}
GNUNET_GNSRECORD_TYPE_MESSENGER_ENCRYPTION_KEY
#define GNUNET_GNSRECORD_TYPE_MESSENGER_ENCRYPTION_KEY
Record type to store encryption keys used in messenger rooms.
Definition gnu_name_system_record_types.h:205
GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_EPOCH_KEY
#define GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_EPOCH_KEY
Record type to store epoch keys from a messenger room.
Definition gnu_name_system_record_types.h:199
GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_ENTRY
#define GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_ENTRY
Record type to share an entry of a messenger room.
Definition gnu_name_system_record_types.h:169
GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_DETAILS
#define GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_DETAILS
Record type to store details about a messenger room.
Definition gnu_name_system_record_types.h:181
ret
static int ret
Final status code.
Definition gnunet-arm.c:93
record
static void record(void *cls, size_t data_size, const void *data)
Process recorded audio data.
Definition gnunet-conversation-test.c:171
data
static char * data
The data to insert into the dht.
Definition gnunet-dht-put.c:88
key
struct GNUNET_HashCode key
The key used in the DHT.
Definition gnunet-dht-put.c:37
type
static uint32_t type
Type string converted to DNS type value.
Definition gnunet-namestore.c:306
data_size
static size_t data_size
Number of bytes in data.
Definition gnunet-namestore.c:316
GNUNET_CRYPTO_eddsa_public_key_to_string
char * GNUNET_CRYPTO_eddsa_public_key_to_string(const struct GNUNET_CRYPTO_EddsaPublicKey *pub)
Convert a public key to a string.
Definition crypto_ecc.c:255
GNUNET_break_op
#define GNUNET_break_op(cond)
Use this for assertion violations caused by other peers (i.e.
Definition gnunet_common.h:1067
GNUNET_asprintf
int int GNUNET_asprintf(char **buf, const char *format,...) __attribute__((format(printf
Like asprintf, just portable.
GNUNET_strndup
#define GNUNET_strndup(a, length)
Wrapper around GNUNET_xstrndup_.
Definition gnunet_common.h:1441
GNUNET_free
#define GNUNET_free(ptr)
Wrapper around free.
Definition gnunet_common.h:1415
GNUNET_STRINGS_data_to_string_alloc
char * GNUNET_STRINGS_data_to_string_alloc(const void *buf, size_t size)
Return the base32crockford encoding of the given buffer.
Definition strings.c:818
name
const char * name
Definition plugin_gnsrecord_messenger.c:574
GNUNET_HashCode
A 512-bit hashcode.
Definition gnunet_common.h:287
GNUNET_MESSENGER_EncryptionKeyRecord
An encryption key record specifies an encryption key for a given room that can be identified via a gi...
Definition gnunet_messenger_service.h:245
GNUNET_MESSENGER_EncryptionKeyRecord::nonce
struct GNUNET_CRYPTO_AeadNonce nonce
The nonce for the AEAD encryption of the key.
Definition gnunet_messenger_service.h:254
GNUNET_MESSENGER_EncryptionKeyRecord::mac
struct GNUNET_CRYPTO_AeadMac mac
The mac from the AEAD encryption of the key.
Definition gnunet_messenger_service.h:259
GNUNET_MESSENGER_RoomDetailsRecord
A room details record specifies a custom name for a given room and some additional space for flags.
Definition gnunet_messenger_service.h:127
GNUNET_MESSENGER_RoomDetailsRecord::flags
uint32_t flags
The flags of the room.
Definition gnunet_messenger_service.h:136
GNUNET_MESSENGER_RoomEntryRecord
A room entry record specifies which peer is hosting a given room and may also specify the key to ente...
Definition gnunet_messenger_service.h:108
GNUNET_MESSENGER_RoomEntryRecord::door
struct GNUNET_PeerIdentity door
The peer identity of an open door to a room.
Definition gnunet_messenger_service.h:112
GNUNET_MESSENGER_RoomEpochKeyRecord
A room epoch key record specifies an epoch key for a given room that can be identified via a given ke...
Definition gnunet_messenger_service.h:172
GNUNET_MESSENGER_RoomEpochKeyRecord::mac
struct GNUNET_CRYPTO_AeadMac mac
The mac from the AEAD encryption of the key.
Definition gnunet_messenger_service.h:196
GNUNET_MESSENGER_RoomEpochKeyRecord::flags
uint32_t flags
The flags of the epoch or group key.
Definition gnunet_messenger_service.h:206
GNUNET_MESSENGER_RoomEpochKeyRecord::identifier
struct GNUNET_ShortHashCode identifier
The short hash identifying the epoch or group key.
Definition gnunet_messenger_service.h:186
GNUNET_MESSENGER_RoomEpochKeyRecord::nonce
struct GNUNET_CRYPTO_AeadNonce nonce
The nonce for the AEAD encryption of the key.
Definition gnunet_messenger_service.h:191
GNUNET_MESSENGER_RoomEpochKeyRecord::shared_key
struct GNUNET_CRYPTO_AeadSecretKey shared_key
The encrypted shared epoch or group key in the room.
Definition gnunet_messenger_service.h:201
GNUNET_MESSENGER_RoomEpochKeyRecord::hash
struct GNUNET_HashCode hash
The hash identifying the epoch.
Definition gnunet_messenger_service.h:181
GNUNET_ShortHashCode
A 256-bit hashcode.
Definition gnunet_common.h:297

References data, data_size, GNUNET_MESSENGER_RoomEntryRecord::door, GNUNET_MESSENGER_RoomDetailsRecord::flags, GNUNET_MESSENGER_RoomEpochKeyRecord::flags, GNUNET_asprintf(), GNUNET_break_op, GNUNET_CRYPTO_eddsa_public_key_to_string(), GNUNET_free, GNUNET_GNSRECORD_TYPE_MESSENGER_ENCRYPTION_KEY, GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_DETAILS, GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_ENTRY, GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_EPOCH_KEY, GNUNET_STRINGS_data_to_string_alloc(), GNUNET_strndup, GNUNET_MESSENGER_RoomEpochKeyRecord::hash, GNUNET_MESSENGER_RoomEpochKeyRecord::identifier, key, GNUNET_MESSENGER_RoomEpochKeyRecord::mac, GNUNET_MESSENGER_EncryptionKeyRecord::mac, name, GNUNET_MESSENGER_RoomEpochKeyRecord::nonce, GNUNET_MESSENGER_EncryptionKeyRecord::nonce, record(), ret, GNUNET_MESSENGER_RoomEpochKeyRecord::shared_key, and type.

Referenced by libgnunet_plugin_gnsrecord_messenger_init().

Here is the call graph for this function:
Here is the caller graph for this function:

◆ messenger_string_to_value()

static int messenger_string_to_value ( void *  cls,
uint32_t  type,
const char *  s,
void **  data,
size_t *  data_size 
)
static

Convert human-readable version of a 'value' of a record to the binary representation.

Parameters
clsclosure, unused
typetype of the record
shuman-readable string
dataset to value in binary encoding (will be allocated)
data_sizeset to number of bytes in data
Returns
GNUNET_OK on success

Definition at line 212 of file plugin_gnsrecord_messenger.c.

217{
218 (void) cls;
219 if (NULL == s)
220 {
221 GNUNET_break (0);
222 return GNUNET_SYSERR;
223 }
224
225 switch (type)
226 {
227 case GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_ENTRY:
228 {
229 char key[104];
230 const char *dash;
231 struct GNUNET_PeerIdentity door;
232
233 if ((NULL == (dash = strchr (s, '-'))) ||
234 (1 != sscanf (s, "%103s-", key)) ||
235 (GNUNET_OK != GNUNET_CRYPTO_eddsa_public_key_from_string (
236 dash + 1, strlen (dash + 1), &(door.public_key))))
237 {
238 GNUNET_log (
239 GNUNET_ERROR_TYPE_ERROR,
240 _ ("Unable to parse MESSENGER_ROOM_ENTRY record `%s'\n"),
241 s);
242
243 return GNUNET_SYSERR;
244 }
245 {
246 struct GNUNET_MESSENGER_RoomEntryRecord *record = GNUNET_new (
247 struct GNUNET_MESSENGER_RoomEntryRecord);
248
249 if (GNUNET_OK != GNUNET_STRINGS_string_to_data (
250 key, strlen (key),
251 &(record->key), sizeof(struct GNUNET_HashCode)))
252 {
253 GNUNET_log (
254 GNUNET_ERROR_TYPE_ERROR,
255 _ ("Unable to parse MESSENGER_ROOM_ENTRY record `%s'\n"),
256 s);
257
258 GNUNET_free (record);
259 return GNUNET_SYSERR;
260 }
261
262 record->door = door;
263 *data = record;
264 *data_size = sizeof(struct GNUNET_MESSENGER_RoomEntryRecord);
265 return GNUNET_OK;
266 }
267 }
268 case GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_DETAILS:
269 {
270 char flags[8];
271 const char *dash;
272
273 if ((NULL == (dash = strchr (s, '-'))) ||
274 (1 != sscanf (s, "%7s-", flags)) ||
275 (strlen (dash + 1) > 256))
276 {
277 GNUNET_log (
278 GNUNET_ERROR_TYPE_ERROR,
279 _ ("Unable to parse MESSENGER_ROOM_DETAILS record `%s'\n"),
280 s);
281
282 return GNUNET_SYSERR;
283 }
284 {
285 struct GNUNET_MESSENGER_RoomDetailsRecord *record = GNUNET_new (
286 struct GNUNET_MESSENGER_RoomDetailsRecord);
287
288 if (GNUNET_OK != GNUNET_STRINGS_string_to_data (
289 flags, strlen (flags),
290 &(record->flags), sizeof(uint32_t)))
291 {
292 GNUNET_log (
293 GNUNET_ERROR_TYPE_ERROR,
294 _ ("Unable to parse MESSENGER_ROOM_DETAILS record `%s'\n"),
295 s);
296
297 GNUNET_free (record);
298 return GNUNET_SYSERR;
299 }
300
301 GNUNET_memcpy (record->name, dash + 1, strlen (dash + 1));
302
303 *data = record;
304 *data_size = sizeof(struct GNUNET_MESSENGER_RoomDetailsRecord);
305 return GNUNET_OK;
306 }
307 }
308 case GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_EPOCH_KEY:
309 {
310 char key[104];
311 char hash[104];
312 char identifier[53];
313 char nonce[40];
314 char mac[27];
315 char shared_key[53];
316 char flags[8];
317 const char *dash;
318 const char *s0;
319
320 s0 = s;
321 if ((NULL == (dash = strchr (s0, '-'))) ||
322 (1 != sscanf (s0, "%7s-", flags)) ||
323 (strlen (dash + 1) < sizeof (shared_key)))
324 {
325 GNUNET_log (
326 GNUNET_ERROR_TYPE_ERROR,
327 _ ("Unable to parse MESSENGER_ROOM_EPOCH_KEY record `%s'\n"),
328 s);
329
330 return GNUNET_SYSERR;
331 }
332
333 s0 = dash + 1;
334 if ((NULL == (dash = strchr (s0, '-'))) ||
335 (1 != sscanf (s0, "%52s-", shared_key)) ||
336 (strlen (dash + 1) < sizeof (mac)))
337 {
338 GNUNET_log (
339 GNUNET_ERROR_TYPE_ERROR,
340 _ ("Unable to parse MESSENGER_ROOM_EPOCH_KEY record `%s'\n"),
341 s);
342
343 return GNUNET_SYSERR;
344 }
345
346 s0 = dash + 1;
347 if ((NULL == (dash = strchr (s0, '-'))) ||
348 (1 != sscanf (s0, "%26s-", mac)) ||
349 (strlen (dash + 1) < sizeof (nonce)))
350 {
351 GNUNET_log (
352 GNUNET_ERROR_TYPE_ERROR,
353 _ ("Unable to parse MESSENGER_ROOM_EPOCH_KEY record `%s'\n"),
354 s);
355
356 return GNUNET_SYSERR;
357 }
358
359 s0 = dash + 1;
360 if ((NULL == (dash = strchr (s0, '-'))) ||
361 (1 != sscanf (s0, "%39s-", nonce)) ||
362 (strlen (dash + 1) < sizeof (identifier)))
363 {
364 GNUNET_log (
365 GNUNET_ERROR_TYPE_ERROR,
366 _ ("Unable to parse MESSENGER_ROOM_EPOCH_KEY record `%s'\n"),
367 s);
368
369 return GNUNET_SYSERR;
370 }
371
372 s0 = dash + 1;
373 if ((NULL == (dash = strchr (s0, '-'))) ||
374 (1 != sscanf (s0, "%52s-", identifier)) ||
375 (strlen (dash + 1) < sizeof (hash)))
376 {
377 GNUNET_log (
378 GNUNET_ERROR_TYPE_ERROR,
379 _ ("Unable to parse MESSENGER_ROOM_EPOCH_KEY record `%s'\n"),
380 s);
381
382 return GNUNET_SYSERR;
383 }
384
385 s0 = dash + 1;
386 if ((NULL == (dash = strchr (s0, '-'))) ||
387 (1 != sscanf (s0, "%103s-", hash)) ||
388 (strlen (dash + 1) != sizeof (key)))
389 {
390 GNUNET_log (
391 GNUNET_ERROR_TYPE_ERROR,
392 _ ("Unable to parse MESSENGER_ROOM_EPOCH_KEY record `%s'\n"),
393 s);
394
395 return GNUNET_SYSERR;
396 }
397
398 GNUNET_memcpy (key, dash + 1, strlen (dash + 1));
399 key[103] = '\0';
400
401 {
402 struct GNUNET_MESSENGER_RoomEpochKeyRecord *record = GNUNET_new (
403 struct GNUNET_MESSENGER_RoomEpochKeyRecord);
404
405 if ((GNUNET_OK != GNUNET_STRINGS_string_to_data (
406 flags, strlen (flags),
407 &(record->flags),
408 sizeof(record->flags)))
409 ||
410 (GNUNET_OK != GNUNET_STRINGS_string_to_data (
411 shared_key, strlen (shared_key),
412 &(record->shared_key),
413 sizeof(record->shared_key)))
414 ||
415 (GNUNET_OK != GNUNET_STRINGS_string_to_data (
416 mac, strlen (mac),
417 &(record->mac),
418 sizeof(record->mac)))
419 ||
420 (GNUNET_OK != GNUNET_STRINGS_string_to_data (
421 nonce, strlen (nonce),
422 &(record->nonce),
423 sizeof(record->nonce)))
424 ||
425 (GNUNET_OK != GNUNET_STRINGS_string_to_data (
426 identifier, strlen (identifier),
427 &(record->identifier),
428 sizeof(record->identifier)))
429 ||
430 (GNUNET_OK != GNUNET_STRINGS_string_to_data (
431 hash, strlen (hash),
432 &(record->hash),
433 sizeof(record->hash)))
434 ||
435 (GNUNET_OK != GNUNET_STRINGS_string_to_data (
436 key, strlen (key),
437 &(record->key),
438 sizeof(record->key))))
439 {
440 GNUNET_log (
441 GNUNET_ERROR_TYPE_ERROR,
442 _ ("Unable to parse MESSENGER_ROOM_EPOCH_KEY record `%s'\n"),
443 s);
444
445 GNUNET_free (record);
446 return GNUNET_SYSERR;
447 }
448
449 *data = record;
450 *data_size = sizeof(struct GNUNET_MESSENGER_RoomEpochKeyRecord);
451 return GNUNET_OK;
452 }
453 }
454 case GNUNET_GNSRECORD_TYPE_MESSENGER_ENCRYPTION_KEY:
455 {
456 char key[104];
457 char nonce[40];
458 char mac[27];
459 char encryption_key_length[8];
460 char encryption_key[827];
461 const char *dash;
462 const char *s0;
463
464 s0 = s;
465 if ((NULL == (dash = strchr (s0, '-'))) ||
466 (1 != sscanf (s0, "%826s-", encryption_key)) ||
467 (strlen (dash + 1) < sizeof (encryption_key_length)))
468 {
469 GNUNET_log (
470 GNUNET_ERROR_TYPE_ERROR,
471 _ ("Unable to parse MESSENGER_ENCRYPTION_KEY record `%s'\n"),
472 s);
473
474 return GNUNET_SYSERR;
475 }
476
477 s0 = dash + 1;
478 if ((NULL == (dash = strchr (s0, '-'))) ||
479 (1 != sscanf (s0, "%7s-", encryption_key_length)) ||
480 (strlen (dash + 1) < sizeof (mac)))
481 {
482 GNUNET_log (
483 GNUNET_ERROR_TYPE_ERROR,
484 _ ("Unable to parse MESSENGER_ENCRYPTION_KEY record `%s'\n"),
485 s);
486
487 return GNUNET_SYSERR;
488 }
489
490 s0 = dash + 1;
491 if ((NULL == (dash = strchr (s0, '-'))) ||
492 (1 != sscanf (s0, "%26s-", mac)) ||
493 (strlen (dash + 1) < sizeof (nonce)))
494 {
495 GNUNET_log (
496 GNUNET_ERROR_TYPE_ERROR,
497 _ ("Unable to parse MESSENGER_ENCRYPTION_KEY record `%s'\n"),
498 s);
499
500 return GNUNET_SYSERR;
501 }
502
503 s0 = dash + 1;
504 if ((NULL == (dash = strchr (s0, '-'))) ||
505 (1 != sscanf (s0, "%39s-", nonce)) ||
506 (strlen (dash + 1) < sizeof (key)))
507 {
508 GNUNET_log (
509 GNUNET_ERROR_TYPE_ERROR,
510 _ ("Unable to parse MESSENGER_ENCRYPTION_KEY record `%s'\n"),
511 s);
512
513 return GNUNET_SYSERR;
514 }
515
516 GNUNET_memcpy (key, dash + 1, strlen (dash + 1));
517 key[103] = '\0';
518
519 {
520 struct GNUNET_MESSENGER_EncryptionKeyRecord *record = GNUNET_new (
521 struct GNUNET_MESSENGER_EncryptionKeyRecord);
522
523 if ((GNUNET_OK != GNUNET_STRINGS_string_to_data (
524 encryption_key, strlen (encryption_key),
525 record->encrypted_key_data,
526 sizeof(record->encrypted_key_data)))
527 ||
528 (GNUNET_OK != GNUNET_STRINGS_string_to_data (
529 encryption_key_length, strlen (encryption_key_length),
530 &(record->encrypted_key_length),
531 sizeof(record->encrypted_key_length)))
532 ||
533 (GNUNET_OK != GNUNET_STRINGS_string_to_data (
534 mac, strlen (mac),
535 &(record->mac),
536 sizeof(record->mac)))
537 ||
538 (GNUNET_OK != GNUNET_STRINGS_string_to_data (
539 nonce, strlen (nonce),
540 &(record->nonce),
541 sizeof(record->nonce)))
542 ||
543 (GNUNET_OK != GNUNET_STRINGS_string_to_data (
544 key, strlen (key),
545 &(record->key),
546 sizeof(record->key))))
547 {
548 GNUNET_log (
549 GNUNET_ERROR_TYPE_ERROR,
550 _ ("Unable to parse MESSENGER_ENCRYPTION_KEY record `%s'\n"),
551 s);
552
553 GNUNET_free (record);
554 return GNUNET_SYSERR;
555 }
556
557 *data = record;
558 *data_size = sizeof(struct GNUNET_MESSENGER_EncryptionKeyRecord);
559 return GNUNET_OK;
560 }
561 }
562 default:
563 return GNUNET_SYSERR;
564 }
565}
GNUNET_log
#define GNUNET_log(kind,...)
Definition gnunet_common.h:551
GNUNET_CRYPTO_eddsa_public_key_from_string
enum GNUNET_GenericReturnValue GNUNET_CRYPTO_eddsa_public_key_from_string(const char *enc, size_t enclen, struct GNUNET_CRYPTO_EddsaPublicKey *pub)
Convert a string representing a public key to a public key.
Definition crypto_ecc.c:361
GNUNET_memcpy
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
Definition gnunet_common.h:1320
GNUNET_OK
@ GNUNET_OK
Definition gnunet_common.h:114
GNUNET_SYSERR
@ GNUNET_SYSERR
Definition gnunet_common.h:112
GNUNET_break
#define GNUNET_break(cond)
Use this for internal assertion violations that are not fatal (can be handled) but should not occur.
Definition gnunet_common.h:1045
GNUNET_ERROR_TYPE_ERROR
@ GNUNET_ERROR_TYPE_ERROR
Definition gnunet_common.h:417
GNUNET_new
#define GNUNET_new(type)
Allocate a struct or union of the given type.
Definition gnunet_common.h:1240
GNUNET_STRINGS_string_to_data
enum GNUNET_GenericReturnValue GNUNET_STRINGS_string_to_data(const char *enc, size_t enclen, void *out, size_t out_size)
Convert CrockfordBase32 encoding back to data.
Definition strings.c:843
_
#define _(String)
GNU gettext support macro.
Definition platform.h:179
GNUNET_PeerIdentity
The identity of the host (wraps the signing key of the peer).
Definition gnunet_crypto_lib.h:208

References _, data, data_size, GNUNET_MESSENGER_RoomEntryRecord::door, GNUNET_MESSENGER_RoomDetailsRecord::flags, GNUNET_MESSENGER_RoomEpochKeyRecord::flags, GNUNET_break, GNUNET_CRYPTO_eddsa_public_key_from_string(), GNUNET_ERROR_TYPE_ERROR, GNUNET_free, GNUNET_GNSRECORD_TYPE_MESSENGER_ENCRYPTION_KEY, GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_DETAILS, GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_ENTRY, GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_EPOCH_KEY, GNUNET_log, GNUNET_memcpy, GNUNET_new, GNUNET_OK, GNUNET_STRINGS_string_to_data(), GNUNET_SYSERR, GNUNET_MESSENGER_RoomEpochKeyRecord::hash, GNUNET_MESSENGER_RoomEpochKeyRecord::identifier, key, GNUNET_MESSENGER_RoomEpochKeyRecord::mac, GNUNET_MESSENGER_EncryptionKeyRecord::mac, GNUNET_MESSENGER_RoomEpochKeyRecord::nonce, GNUNET_MESSENGER_EncryptionKeyRecord::nonce, GNUNET_PeerIdentity::public_key, record(), GNUNET_MESSENGER_RoomEpochKeyRecord::shared_key, and type.

Referenced by libgnunet_plugin_gnsrecord_messenger_init().

Here is the call graph for this function:
Here is the caller graph for this function:

◆ messenger_typename_to_number()

static uint32_t messenger_typename_to_number ( void *  cls,
const char *  gns_typename 
)
static

Convert a type name (e.g.

"AAAA") to the corresponding number.

Parameters
clsclosure, unused
gns_typenamename to convert
Returns
corresponding number, UINT32_MAX on error

Definition at line 595 of file plugin_gnsrecord_messenger.c.

597{
598 unsigned int i;
599
600 (void) cls;
601 i = 0;
602 while ((name_map[i].name != NULL) &&
603 (0 != strcasecmp (gns_typename, name_map[i].name)))
604 i++;
605 return name_map[i].number;
606}
name_map
static struct @47 name_map[]
Mapping of record type numbers to human-readable record type names.

References name, and name_map.

Referenced by libgnunet_plugin_gnsrecord_messenger_init().

Here is the caller graph for this function:

◆ messenger_number_to_typename()

static const char * messenger_number_to_typename ( void *  cls,
uint32_t  type 
)
static

Convert a type number to the corresponding type string (e.g.

1 to "A")

Parameters
clsclosure, unused
typenumber of a type to convert
Returns
corresponding typestring, NULL on error

Definition at line 617 of file plugin_gnsrecord_messenger.c.

619{
620 unsigned int i;
621
622 (void) cls;
623 i = 0;
624 while ((name_map[i].name != NULL) &&
625 (type != name_map[i].number))
626 i++;
627 return name_map[i].name;
628}

References name, name_map, and type.

Referenced by libgnunet_plugin_gnsrecord_messenger_init().

Here is the caller graph for this function:

◆ libgnunet_plugin_gnsrecord_messenger_init()

void * libgnunet_plugin_gnsrecord_messenger_init ( void *  cls)

Entry point for the plugin.

Parameters
clsNULL
Returns
the exported block API

Definition at line 641 of file plugin_gnsrecord_messenger.c.

642{
643 struct GNUNET_GNSRECORD_PluginFunctions *api;
644
645 (void) cls;
646 api = GNUNET_new (struct GNUNET_GNSRECORD_PluginFunctions);
647 api->value_to_string = &messenger_value_to_string;
648 api->string_to_value = &messenger_string_to_value;
649 api->typename_to_number = &messenger_typename_to_number;
650 api->number_to_typename = &messenger_number_to_typename;
651 return api;
652}
messenger_value_to_string
static char * messenger_value_to_string(void *cls, uint32_t type, const void *data, size_t data_size)
Convert the 'value' of a record to a string.
Definition plugin_gnsrecord_messenger.c:45
messenger_number_to_typename
static const char * messenger_number_to_typename(void *cls, uint32_t type)
Convert a type number to the corresponding type string (e.g.
Definition plugin_gnsrecord_messenger.c:617
messenger_typename_to_number
static uint32_t messenger_typename_to_number(void *cls, const char *gns_typename)
Convert a type name (e.g.
Definition plugin_gnsrecord_messenger.c:595
messenger_string_to_value
static int messenger_string_to_value(void *cls, uint32_t type, const char *s, void **data, size_t *data_size)
Convert human-readable version of a 'value' of a record to the binary representation.
Definition plugin_gnsrecord_messenger.c:212
GNUNET_GNSRECORD_PluginFunctions
Each plugin is required to return a pointer to a struct of this type as the return value from its ent...
Definition gnunet_gnsrecord_plugin.h:129
GNUNET_GNSRECORD_PluginFunctions::typename_to_number
GNUNET_GNSRECORD_TypenameToNumberFunction typename_to_number
Typename to number.
Definition gnunet_gnsrecord_plugin.h:148
GNUNET_GNSRECORD_PluginFunctions::number_to_typename
GNUNET_GNSRECORD_NumberToTypenameFunction number_to_typename
Number to typename.
Definition gnunet_gnsrecord_plugin.h:153
GNUNET_GNSRECORD_PluginFunctions::value_to_string
GNUNET_GNSRECORD_ValueToStringFunction value_to_string
Conversion to string.
Definition gnunet_gnsrecord_plugin.h:138
GNUNET_GNSRECORD_PluginFunctions::cls
void * cls
Closure for all of the callbacks.
Definition gnunet_gnsrecord_plugin.h:133
GNUNET_GNSRECORD_PluginFunctions::string_to_value
GNUNET_GNSRECORD_StringToValueFunction string_to_value
Conversion to binary.
Definition gnunet_gnsrecord_plugin.h:143

References GNUNET_GNSRECORD_PluginFunctions::cls, GNUNET_new, messenger_number_to_typename(), messenger_string_to_value(), messenger_typename_to_number(), messenger_value_to_string(), GNUNET_GNSRECORD_PluginFunctions::number_to_typename, GNUNET_GNSRECORD_PluginFunctions::string_to_value, GNUNET_GNSRECORD_PluginFunctions::typename_to_number, and GNUNET_GNSRECORD_PluginFunctions::value_to_string.

Here is the call graph for this function:

◆ libgnunet_plugin_gnsrecord_messenger_done()

void * libgnunet_plugin_gnsrecord_messenger_done ( void *  cls)

Exit point from the plugin.

Parameters
clsthe return value from libgnunet_plugin_block_test_init
Returns
NULL

Definition at line 665 of file plugin_gnsrecord_messenger.c.

666{
667 struct GNUNET_GNSRECORD_PluginFunctions *api = cls;
668
669 GNUNET_free (api);
670 return NULL;
671}

References GNUNET_GNSRECORD_PluginFunctions::cls, and GNUNET_free.

Variable Documentation

◆ name

const char* name

Definition at line 574 of file plugin_gnsrecord_messenger.c.

Referenced by messenger_number_to_typename(), messenger_typename_to_number(), and messenger_value_to_string().

◆ number

uint32_t number

Definition at line 575 of file plugin_gnsrecord_messenger.c.

◆ [struct]

struct { ... } name_map[]
Initial value:
= {
{ "MESSENGER_ROOM_ENTRY", GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_ENTRY },
{ "MESSENGER_ROOM_DETAILS", GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_DETAILS },
{ "MESSENGER_ROOM_EPOCH_KEY", GNUNET_GNSRECORD_TYPE_MESSENGER_ROOM_EPOCH_KEY }
,
{ "MESSENGER_ENCRYPTION_KEY", GNUNET_GNSRECORD_TYPE_MESSENGER_ENCRYPTION_KEY }
,
{ NULL, UINT32_MAX }
}

Mapping of record type numbers to human-readable record type names.

Referenced by messenger_number_to_typename(), and messenger_typename_to_number().