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-rw-r--r--src/transport/Makefile.am6
-rw-r--r--src/transport/plugin_transport_bluetooth.c2052
-rw-r--r--src/transport/plugin_transport_wlan.c183
3 files changed, 120 insertions, 2121 deletions
diff --git a/src/transport/Makefile.am b/src/transport/Makefile.am
index 88183dd06..f198b5a6b 100644
--- a/src/transport/Makefile.am
+++ b/src/transport/Makefile.am
@@ -276,9 +276,11 @@ libgnunet_plugin_transport_wlan_la_LIBADD = \
276 $(top_builddir)/src/util/libgnunetutil.la 276 $(top_builddir)/src/util/libgnunetutil.la
277libgnunet_plugin_transport_wlan_la_LDFLAGS = \ 277libgnunet_plugin_transport_wlan_la_LDFLAGS = \
278 $(GN_PLUGIN_LDFLAGS) 278 $(GN_PLUGIN_LDFLAGS)
279libgnunet_plugin_transport_wlan_la_CFLAGS = \
280 $(CFLAGS) -DBUILD_WLAN
279 281
280libgnunet_plugin_transport_bluetooth_la_SOURCES = \ 282libgnunet_plugin_transport_bluetooth_la_SOURCES = \
281 plugin_transport_bluetooth.c plugin_transport_wlan.h 283 plugin_transport_wlan.c plugin_transport_wlan.h
282libgnunet_plugin_transport_bluetooth_la_LIBADD = \ 284libgnunet_plugin_transport_bluetooth_la_LIBADD = \
283 $(top_builddir)/src/hello/libgnunethello.la \ 285 $(top_builddir)/src/hello/libgnunethello.la \
284 $(top_builddir)/src/statistics/libgnunetstatistics.la \ 286 $(top_builddir)/src/statistics/libgnunetstatistics.la \
@@ -287,6 +289,8 @@ libgnunet_plugin_transport_bluetooth_la_LIBADD = \
287 $(top_builddir)/src/util/libgnunetutil.la 289 $(top_builddir)/src/util/libgnunetutil.la
288libgnunet_plugin_transport_bluetooth_la_LDFLAGS = \ 290libgnunet_plugin_transport_bluetooth_la_LDFLAGS = \
289 $(GN_PLUGIN_LDFLAGS) 291 $(GN_PLUGIN_LDFLAGS)
292libgnunet_plugin_transport_bluetooth_la_CFLAGS = \
293 $(CFLAGS) -DBUILD_BLUETOOTH
290 294
291libgnunet_plugin_transport_udp_la_SOURCES = \ 295libgnunet_plugin_transport_udp_la_SOURCES = \
292 plugin_transport_udp.c plugin_transport_udp.h \ 296 plugin_transport_udp.c plugin_transport_udp.h \
diff --git a/src/transport/plugin_transport_bluetooth.c b/src/transport/plugin_transport_bluetooth.c
deleted file mode 100644
index e5f80e466..000000000
--- a/src/transport/plugin_transport_bluetooth.c
+++ /dev/null
@@ -1,2052 +0,0 @@
1/*
2 This file is part of GNUnet
3 (C) 2010, 2011, 2012 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 transport/plugin_transport_bluetooth.c
23 * @brief transport plugin for bluetooth
24 * @author David Brodski
25 * @author Christian Grothoff
26 *
27 * THIS IS A COPY OF plugin_transport_wlan.c
28 */
29#include "platform.h"
30#include "gnunet_hello_lib.h"
31#include "gnunet_protocols.h"
32#include "gnunet_util_lib.h"
33#include "gnunet_statistics_service.h"
34#include "gnunet_transport_service.h"
35#include "gnunet_transport_plugin.h"
36#include "plugin_transport_wlan.h"
37#include "gnunet_common.h"
38#include "gnunet_crypto_lib.h"
39#include "gnunet_fragmentation_lib.h"
40#include "gnunet_constants.h"
41
42#ifdef MINGW
43 #undef interface
44#endif
45
46#define LOG(kind,...) GNUNET_log_from (kind, "transport-bluetooth",__VA_ARGS__)
47
48#define PLUGIN_NAME "bluetooth"
49
50/**
51 * Max size of packet (that we give to the WLAN driver for transmission)
52 */
53#define WLAN_MTU 1430
54
55/**
56 * time out of a mac endpoint
57 */
58#define MACENDPOINT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, 60)
59
60/**
61 * We reduce the frequence of HELLO beacons in relation to
62 * the number of MAC addresses currently visible to us.
63 * This is the multiplication factor.
64 */
65#define HELLO_BEACON_SCALING_FACTOR GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60)
66
67/**
68 * Maximum number of messages in defragmentation queue per MAC
69 */
70#define MESSAGES_IN_DEFRAG_QUEUE_PER_MAC 2
71
72/**
73 * Link layer control fields for better compatibility
74 * (i.e. GNUnet over WLAN is not IP-over-WLAN).
75 */
76#define WLAN_LLC_DSAP_FIELD 0x1f
77#define WLAN_LLC_SSAP_FIELD 0x1f
78
79
80GNUNET_NETWORK_STRUCT_BEGIN
81/**
82 * Header for messages which need fragmentation. This is the format of
83 * a message we obtain AFTER defragmentation. We then need to check
84 * the CRC and then tokenize the payload and pass it to the
85 * 'receive' callback.
86 */
87struct WlanHeader
88{
89
90 /**
91 * Message type is #GNUNET_MESSAGE_TYPE_WLAN_DATA.
92 */
93 struct GNUNET_MessageHeader header;
94
95 /**
96 * CRC32 checksum (only over the payload), in NBO.
97 */
98 uint32_t crc GNUNET_PACKED;
99
100 /**
101 * Sender of the message.
102 */
103 struct GNUNET_PeerIdentity sender;
104
105 /**
106 * Target of the message.
107 */
108 struct GNUNET_PeerIdentity target;
109
110 /* followed by payload, possibly including
111 multiple messages! */
112
113};
114
115
116struct WlanAddress
117{
118 uint32_t options GNUNET_PACKED;
119
120 struct GNUNET_TRANSPORT_WLAN_MacAddress mac;
121};
122
123
124GNUNET_NETWORK_STRUCT_END
125
126
127/**
128 * Information kept for each message that is yet to be fragmented and
129 * transmitted.
130 */
131struct PendingMessage
132{
133 /**
134 * next entry in the DLL
135 */
136 struct PendingMessage *next;
137
138 /**
139 * previous entry in the DLL
140 */
141 struct PendingMessage *prev;
142
143 /**
144 * The pending message
145 */
146 struct WlanHeader *msg;
147
148 /**
149 * Continuation function to call once the message
150 * has been sent. Can be NULL if there is no
151 * continuation to call.
152 */
153 GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
154
155 /**
156 * Cls for transmit_cont
157 */
158 void *transmit_cont_cls;
159
160 /**
161 * Timeout task (for this message).
162 */
163 GNUNET_SCHEDULER_TaskIdentifier timeout_task;
164
165};
166
167
168/**
169 * Session handle for connections with other peers.
170 */
171struct Session
172{
173 /**
174 * To whom are we talking to (set to our identity
175 * if we are still waiting for the welcome message)
176 */
177 struct GNUNET_PeerIdentity target;
178
179 /**
180 * We keep all sessions in a DLL at their respective
181 * `struct MACEndpoint *`.
182 */
183 struct Session *next;
184
185 /**
186 * We keep all sessions in a DLL at their respective
187 * 'struct MACEndpoint'.
188 */
189 struct Session *prev;
190
191 /**
192 * MAC endpoint with the address of this peer.
193 */
194 struct MacEndpoint *mac;
195
196 /**
197 * The address for this session
198 */
199 struct GNUNET_HELLO_Address *address;
200
201 /**
202 * Head of messages currently pending for transmission to this peer.
203 */
204 struct PendingMessage *pending_message_head;
205
206 /**
207 * Tail of messages currently pending for transmission to this peer.
208 */
209 struct PendingMessage *pending_message_tail;
210
211 /**
212 * When should this session time out?
213 */
214 struct GNUNET_TIME_Absolute timeout;
215
216 /**
217 * Timeout task (for the session).
218 */
219 GNUNET_SCHEDULER_TaskIdentifier timeout_task;
220
221};
222
223
224/**
225 * Struct for messages that are being fragmented in a MAC's transmission queue.
226 */
227struct FragmentMessage
228{
229
230 /**
231 * This is a doubly-linked list.
232 */
233 struct FragmentMessage *next;
234
235 /**
236 * This is a doubly-linked list.
237 */
238 struct FragmentMessage *prev;
239
240 /**
241 * MAC endpoint this message belongs to
242 */
243 struct MacEndpoint *macendpoint;
244
245 /**
246 * Fragmentation context
247 */
248 struct GNUNET_FRAGMENT_Context *fragcontext;
249
250 /**
251 * Transmission handle to helper (to cancel if the frag context
252 * is destroyed early for some reason).
253 */
254 struct GNUNET_HELPER_SendHandle *sh;
255
256 /**
257 * Intended recipient.
258 */
259 struct GNUNET_PeerIdentity target;
260
261 /**
262 * Timeout value for the message.
263 */
264 struct GNUNET_TIME_Absolute timeout;
265
266 /**
267 * Timeout task.
268 */
269 GNUNET_SCHEDULER_TaskIdentifier timeout_task;
270
271 /**
272 * Continuation to call when we're done with this message.
273 */
274 GNUNET_TRANSPORT_TransmitContinuation cont;
275
276 /**
277 * Closure for @e cont.
278 */
279 void *cont_cls;
280
281 /**
282 * Size of original message
283 */
284 size_t size_payload;
285
286 /**
287 * Number of bytes used to transmit message
288 */
289 size_t size_on_wire;
290
291};
292
293
294/**
295 * Struct to represent one network card connection
296 */
297struct MacEndpoint
298{
299
300 /**
301 * We keep all MACs in a DLL in the plugin.
302 */
303 struct MacEndpoint *next;
304
305 /**
306 * We keep all MACs in a DLL in the plugin.
307 */
308 struct MacEndpoint *prev;
309
310 /**
311 * Pointer to the global plugin struct.
312 */
313 struct Plugin *plugin;
314
315 /**
316 * Head of sessions that use this MAC.
317 */
318 struct Session *sessions_head;
319
320 /**
321 * Tail of sessions that use this MAC.
322 */
323 struct Session *sessions_tail;
324
325 /**
326 * Head of messages we are currently sending to this MAC.
327 */
328 struct FragmentMessage *sending_messages_head;
329
330 /**
331 * Tail of messages we are currently sending to this MAC.
332 */
333 struct FragmentMessage *sending_messages_tail;
334
335 /**
336 * Defrag context for this MAC
337 */
338 struct GNUNET_DEFRAGMENT_Context *defrag;
339
340 /**
341 * When should this endpoint time out?
342 */
343 struct GNUNET_TIME_Absolute timeout;
344
345 /**
346 * Timeout task.
347 */
348 GNUNET_SCHEDULER_TaskIdentifier timeout_task;
349
350 /**
351 * peer mac address
352 */
353 struct WlanAddress addr;
354
355 /**
356 * Message delay for fragmentation context
357 */
358 struct GNUNET_TIME_Relative msg_delay;
359
360 /**
361 * ACK delay for fragmentation context
362 */
363 struct GNUNET_TIME_Relative ack_delay;
364
365 /**
366 * count of messages in the fragment out queue for this mac endpoint
367 */
368 unsigned int fragment_messages_out_count;
369
370 /**
371 * Desired transmission power for this MAC
372 */
373 uint16_t tx_power;
374
375 /**
376 * Desired transmission rate for this MAC
377 */
378 uint8_t rate;
379
380 /**
381 * Antenna we should use for this MAC
382 */
383 uint8_t antenna;
384
385};
386
387
388/**
389 * Encapsulation of all of the state of the plugin.
390 */
391struct Plugin
392{
393 /**
394 * Our environment.
395 */
396 struct GNUNET_TRANSPORT_PluginEnvironment *env;
397
398 /**
399 * Handle to helper process for priviledged operations.
400 */
401 struct GNUNET_HELPER_Handle *suid_helper;
402
403 /**
404 * ARGV-vector for the helper (all helpers take only the binary
405 * name, one actual argument, plus the NULL terminator for 'argv').
406 */
407 char *helper_argv[3];
408
409 /**
410 * The interface of the wlan card given to us by the user.
411 */
412 char *interface;
413
414 /**
415 * Tokenizer for demultiplexing of data packets resulting from defragmentation.
416 */
417 struct GNUNET_SERVER_MessageStreamTokenizer *fragment_data_tokenizer;
418
419 /**
420 * Tokenizer for demultiplexing of data packets received from the suid helper
421 */
422 struct GNUNET_SERVER_MessageStreamTokenizer *helper_payload_tokenizer;
423
424 /**
425 * Tokenizer for demultiplexing of data packets that follow the WLAN Header
426 */
427 struct GNUNET_SERVER_MessageStreamTokenizer *wlan_header_payload_tokenizer;
428
429 /**
430 * Head of list of open connections.
431 */
432 struct MacEndpoint *mac_head;
433
434 /**
435 * Tail of list of open connections.
436 */
437 struct MacEndpoint *mac_tail;
438
439 /**
440 * Number of connections
441 */
442 unsigned int mac_count;
443
444 /**
445 * Task that periodically sends a HELLO beacon via the helper.
446 */
447 GNUNET_SCHEDULER_TaskIdentifier beacon_task;
448
449 /**
450 * Tracker for bandwidth limit
451 */
452 struct GNUNET_BANDWIDTH_Tracker tracker;
453
454 /**
455 * The mac_address of the wlan card given to us by the helper.
456 */
457 struct GNUNET_TRANSPORT_WLAN_MacAddress mac_address;
458
459 /**
460 * Have we received a control message with our MAC address yet?
461 */
462 int have_mac;
463
464 /**
465 * Options for addresses
466 */
467 uint32_t options;
468
469};
470
471
472/**
473 * Information associated with a message. Can contain
474 * the session or the MAC endpoint associated with the
475 * message (or both).
476 */
477struct MacAndSession
478{
479 /**
480 * NULL if the identity of the other peer is not known.
481 */
482 struct Session *session;
483
484 /**
485 * MAC address of the other peer, NULL if not known.
486 */
487 struct MacEndpoint *endpoint;
488};
489
490/**
491 * Function called for a quick conversion of the binary address to
492 * a numeric address. Note that the caller must not free the
493 * address and that the next call to this function is allowed
494 * to override the address again.
495 *
496 * @param cls closure
497 * @param addr binary address
498 * @param addrlen length of the @a addr
499 * @return string representing the same address
500 */
501static const char *
502bluetooth_plugin_address_to_string (void *cls,
503 const void *addr,
504 size_t addrlen);
505
506/**
507 * Print MAC addresses nicely.
508 *
509 * @param mac the mac address
510 * @return string to a static buffer with
511 * the human-readable mac, will be overwritten during the next call to
512 * this function
513 */
514static const char *
515mac_to_string (const struct GNUNET_TRANSPORT_WLAN_MacAddress * mac)
516{
517 static char macstr[20];
518
519 GNUNET_snprintf (macstr,
520 sizeof (macstr),
521 "%.2X:%.2X:%.2X:%.2X:%.2X:%.2X",
522 mac->mac[0], mac->mac[1],
523 mac->mac[2], mac->mac[3],
524 mac->mac[4], mac->mac[5]);
525 return macstr;
526}
527
528
529/**
530 * Fill the radiotap header
531 *
532 * @param endpoint pointer to the endpoint, can be NULL
533 * @param header pointer to the radiotap header
534 * @param size total message size
535 */
536static void
537get_radiotap_header (struct MacEndpoint *endpoint,
538 struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage *header,
539 uint16_t size)
540{
541 header->header.type = ntohs (GNUNET_MESSAGE_TYPE_WLAN_DATA_TO_HELPER);
542 header->header.size = ntohs (size);
543 if (NULL != endpoint)
544 {
545 header->rate = endpoint->rate;
546 header->tx_power = endpoint->tx_power;
547 header->antenna = endpoint->antenna;
548 }
549 else
550 {
551 header->rate = 255;
552 header->tx_power = 0;
553 header->antenna = 0;
554 }
555}
556
557
558/**
559 * Generate the WLAN hardware header for one packet
560 *
561 * @param plugin the plugin handle
562 * @param header address to write the header to
563 * @param to_mac_addr address of the recipient
564 * @param size size of the whole packet, needed to calculate the time to send the packet
565 */
566static void
567get_wlan_header (struct Plugin *plugin,
568 struct GNUNET_TRANSPORT_WLAN_Ieee80211Frame *header,
569 const struct GNUNET_TRANSPORT_WLAN_MacAddress *to_mac_addr,
570 unsigned int size)
571{
572 const int rate = 11000000;
573
574 header->frame_control = htons (IEEE80211_FC0_TYPE_DATA);
575 header->addr1 = *to_mac_addr;
576 header->addr2 = plugin->mac_address;
577 header->addr3 = mac_bssid_gnunet;
578 header->duration = GNUNET_htole16 ((size * 1000000) / rate + 290);
579 header->sequence_control = 0; // FIXME?
580 header->llc[0] = WLAN_LLC_DSAP_FIELD;
581 header->llc[1] = WLAN_LLC_SSAP_FIELD;
582 header->llc[2] = 0; // FIXME?
583 header->llc[3] = 0; // FIXME?
584}
585
586
587/**
588 * Send an ACK for a fragment we received.
589 *
590 * @param cls the 'struct MacEndpoint' the ACK must be sent to
591 * @param msg_id id of the message
592 * @param hdr pointer to the hdr where the ack is stored
593 */
594static void
595send_ack (void *cls, uint32_t msg_id,
596 const struct GNUNET_MessageHeader *hdr)
597{
598 struct MacEndpoint *endpoint = cls;
599 struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage* radio_header;
600 uint16_t msize = ntohs (hdr->size);
601 size_t size = sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage) + msize;
602 char buf[size];
603
604 if (size >= GNUNET_SERVER_MAX_MESSAGE_SIZE)
605 {
606 GNUNET_break (0);
607 return;
608 }
609 LOG (GNUNET_ERROR_TYPE_DEBUG,
610 "Sending ACK to helper\n");
611 radio_header = (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage *) buf;
612 get_radiotap_header (endpoint, radio_header, size);
613 get_wlan_header (endpoint->plugin,
614 &radio_header->frame,
615 &endpoint->addr.mac,
616 sizeof (endpoint->addr.mac));
617 memcpy (&radio_header[1], hdr, msize);
618 if (NULL !=
619 GNUNET_HELPER_send (endpoint->plugin->suid_helper,
620 &radio_header->header,
621 GNUNET_NO /* dropping ACKs is bad */,
622 NULL, NULL))
623 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
624 _("# Bluetooth ACKs sent"),
625 1, GNUNET_NO);
626}
627
628
629/**
630 * Handles the data after all fragments are put together
631 *
632 * @param cls macendpoint this messages belongs to
633 * @param hdr pointer to the data
634 */
635static void
636bluetooth_data_message_handler (void *cls,
637 const struct GNUNET_MessageHeader *hdr)
638{
639 struct MacEndpoint *endpoint = cls;
640 struct Plugin *plugin = endpoint->plugin;
641 struct MacAndSession mas;
642
643 GNUNET_STATISTICS_update (plugin->env->stats,
644 _("# Bluetooth messages defragmented"), 1,
645 GNUNET_NO);
646 mas.session = NULL;
647 mas.endpoint = endpoint;
648 (void) GNUNET_SERVER_mst_receive (plugin->fragment_data_tokenizer,
649 &mas,
650 (const char *) hdr,
651 ntohs (hdr->size),
652 GNUNET_YES, GNUNET_NO);
653}
654
655
656/**
657 * Free a session
658 *
659 * @param session the session free
660 */
661static void
662free_session (struct Session *session)
663{
664 struct MacEndpoint *endpoint = session->mac;
665 struct PendingMessage *pm;
666
667 endpoint->plugin->env->session_end (endpoint->plugin->env->cls,
668 session->address,
669 session);
670 while (NULL != (pm = session->pending_message_head))
671 {
672 GNUNET_CONTAINER_DLL_remove (session->pending_message_head,
673 session->pending_message_tail, pm);
674 if (GNUNET_SCHEDULER_NO_TASK != pm->timeout_task)
675 {
676 GNUNET_SCHEDULER_cancel (pm->timeout_task);
677 pm->timeout_task = GNUNET_SCHEDULER_NO_TASK;
678 }
679 GNUNET_free (pm->msg);
680 GNUNET_free (pm);
681 }
682 GNUNET_CONTAINER_DLL_remove (endpoint->sessions_head,
683 endpoint->sessions_tail,
684 session);
685 if (session->timeout_task != GNUNET_SCHEDULER_NO_TASK)
686 {
687 GNUNET_SCHEDULER_cancel (session->timeout_task);
688 session->timeout_task = GNUNET_SCHEDULER_NO_TASK;
689 }
690 GNUNET_STATISTICS_update (endpoint->plugin->env->stats, _("# Bluetooth sessions allocated"), -1,
691 GNUNET_NO);
692 GNUNET_HELLO_address_free (session->address);
693 GNUNET_free (session);
694}
695
696
697/**
698 * A session is timing out. Clean up.
699 *
700 * @param cls pointer to the Session
701 * @param tc unused
702 */
703static void
704session_timeout (void *cls,
705 const struct GNUNET_SCHEDULER_TaskContext *tc)
706{
707 struct Session * session = cls;
708 struct GNUNET_TIME_Relative timeout;
709
710 session->timeout_task = GNUNET_SCHEDULER_NO_TASK;
711 timeout = GNUNET_TIME_absolute_get_remaining (session->timeout);
712 if (0 == timeout.rel_value_us)
713 {
714 free_session (session);
715 return;
716 }
717 session->timeout_task =
718 GNUNET_SCHEDULER_add_delayed (timeout, &session_timeout, session);
719}
720
721
722/**
723 * Create a new session
724 *
725 * @param endpoint pointer to the mac endpoint of the peer
726 * @param peer peer identity to use for this session
727 * @return returns the session
728 */
729static struct Session *
730create_session (struct MacEndpoint *endpoint,
731 const struct GNUNET_PeerIdentity *peer)
732{
733 struct Session *session;
734
735 for (session = endpoint->sessions_head; NULL != session; session = session->next)
736 if (0 == memcmp (peer, &session->target,
737 sizeof (struct GNUNET_PeerIdentity)))
738 {
739 session->timeout = GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
740 return session;
741 }
742 GNUNET_STATISTICS_update (endpoint->plugin->env->stats, _("# Bluetooth sessions allocated"), 1,
743 GNUNET_NO);
744 session = GNUNET_new (struct Session);
745 GNUNET_CONTAINER_DLL_insert_tail (endpoint->sessions_head,
746 endpoint->sessions_tail,
747 session);
748 session->address = GNUNET_HELLO_address_allocate (peer, PLUGIN_NAME,
749 &endpoint->addr, sizeof (endpoint->addr), GNUNET_HELLO_ADDRESS_INFO_NONE);
750 session->mac = endpoint;
751 session->target = *peer;
752 session->timeout = GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
753 session->timeout_task =
754 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, &session_timeout, session);
755 LOG (GNUNET_ERROR_TYPE_DEBUG,
756 "Created new session for peer `%s' with endpoint %s\n",
757 GNUNET_i2s (peer),
758 mac_to_string (&endpoint->addr.mac));
759 return session;
760}
761
762
763/**
764 * Lookup a new session
765 *
766 * @param endpoint pointer to the mac endpoint of the peer
767 * @param peer peer identity to use for this session
768 * @return returns the session or NULL
769 */
770static struct Session *
771lookup_session (struct MacEndpoint *endpoint,
772 const struct GNUNET_PeerIdentity *peer)
773{
774 struct Session *session;
775
776 for (session = endpoint->sessions_head; NULL != session; session = session->next)
777 if (0 == memcmp (peer, &session->target, sizeof (struct GNUNET_PeerIdentity)))
778 {
779 session->timeout = GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
780 return session;
781 }
782 return NULL;
783}
784
785
786/**
787 * Function called once we have successfully given the fragment
788 * message to the SUID helper process and we are thus ready for
789 * the next fragment.
790 *
791 * @param cls the 'struct FragmentMessage'
792 * @param result result of the operation (GNUNET_OK on success, GNUNET_NO if the helper died, GNUNET_SYSERR
793 * if the helper was stopped)
794 */
795static void
796fragment_transmission_done (void *cls,
797 int result)
798{
799 struct FragmentMessage *fm = cls;
800
801 fm->sh = NULL;
802 GNUNET_FRAGMENT_context_transmission_done (fm->fragcontext);
803}
804
805
806/**
807 * Transmit a fragment of a message.
808 *
809 * @param cls `struct FragmentMessage *` this fragment message belongs to
810 * @param hdr pointer to the start of the fragment message
811 */
812static void
813transmit_fragment (void *cls,
814 const struct GNUNET_MessageHeader *hdr)
815{
816 struct FragmentMessage *fm = cls;
817 struct MacEndpoint *endpoint = fm->macendpoint;
818 size_t size;
819 uint16_t msize;
820
821 msize = ntohs (hdr->size);
822 size = sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage) + msize;
823 {
824 char buf[size];
825 struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage *radio_header;
826
827 radio_header = (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage *) buf;
828 get_radiotap_header (endpoint, radio_header, size);
829 get_wlan_header (endpoint->plugin,
830 &radio_header->frame,
831 &endpoint->addr.mac,
832 sizeof (endpoint->addr.mac));
833 memcpy (&radio_header[1], hdr, msize);
834 GNUNET_assert (NULL == fm->sh);
835 fm->sh = GNUNET_HELPER_send (endpoint->plugin->suid_helper,
836 &radio_header->header,
837 GNUNET_NO,
838 &fragment_transmission_done, fm);
839 fm->size_on_wire += size;
840 if (NULL != fm->sh)
841 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
842 _("# Bluetooth message fragments sent"),
843 1, GNUNET_NO);
844 else
845 GNUNET_FRAGMENT_context_transmission_done (fm->fragcontext);
846 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
847 "# bytes currently in Bluetooth buffers",
848 -msize, GNUNET_NO);
849 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
850 "# bytes transmitted via Bluetooth",
851 msize, GNUNET_NO);
852 }
853}
854
855
856/**
857 * Frees the space of a message in the fragment queue (send queue)
858 *
859 * @param fm message to free
860 */
861static void
862free_fragment_message (struct FragmentMessage *fm)
863{
864 struct MacEndpoint *endpoint = fm->macendpoint;
865
866 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
867 _("# Bluetooth messages pending (with fragmentation)"),
868 -1, GNUNET_NO);
869 GNUNET_CONTAINER_DLL_remove (endpoint->sending_messages_head,
870 endpoint->sending_messages_tail, fm);
871 if (NULL != fm->sh)
872 {
873 GNUNET_HELPER_send_cancel (fm->sh);
874 fm->sh = NULL;
875 }
876 GNUNET_FRAGMENT_context_destroy (fm->fragcontext,
877 &endpoint->msg_delay,
878 &endpoint->ack_delay);
879 if (fm->timeout_task != GNUNET_SCHEDULER_NO_TASK)
880 {
881 GNUNET_SCHEDULER_cancel (fm->timeout_task);
882 fm->timeout_task = GNUNET_SCHEDULER_NO_TASK;
883 }
884 GNUNET_free (fm);
885}
886
887
888/**
889 * A FragmentMessage has timed out. Remove it.
890 *
891 * @param cls pointer to the 'struct FragmentMessage'
892 * @param tc pointer to the GNUNET_SCHEDULER_TaskContext
893 */
894static void
895fragmentmessage_timeout (void *cls,
896 const struct GNUNET_SCHEDULER_TaskContext *tc)
897{
898 struct FragmentMessage *fm = cls;
899
900 fm->timeout_task = GNUNET_SCHEDULER_NO_TASK;
901 if (NULL != fm->cont)
902 {
903 fm->cont (fm->cont_cls,
904 &fm->target,
905 GNUNET_SYSERR,
906 fm->size_payload,
907 fm->size_on_wire);
908 fm->cont = NULL;
909 }
910 free_fragment_message (fm);
911}
912
913
914/**
915 * Transmit a message to the given destination with fragmentation.
916 *
917 * @param endpoint desired destination
918 * @param timeout how long can the message wait?
919 * @param target peer that should receive the message
920 * @param msg message to transmit
921 * @param payload_size bytes of payload
922 * @param cont continuation to call once the message has
923 * been transmitted (or if the transport is ready
924 * for the next transmission call; or if the
925 * peer disconnected...); can be NULL
926 * @param cont_cls closure for @a cont
927 */
928static void
929send_with_fragmentation (struct MacEndpoint *endpoint,
930 struct GNUNET_TIME_Relative timeout,
931 const struct GNUNET_PeerIdentity *target,
932 const struct GNUNET_MessageHeader *msg,
933 size_t payload_size,
934 GNUNET_TRANSPORT_TransmitContinuation cont,
935 void *cont_cls)
936
937{
938 struct FragmentMessage *fm;
939 struct Plugin *plugin;
940
941 plugin = endpoint->plugin;
942 fm = GNUNET_new (struct FragmentMessage);
943 fm->macendpoint = endpoint;
944 fm->target = *target;
945 fm->size_payload = payload_size;
946 fm->size_on_wire = 0;
947 fm->timeout = GNUNET_TIME_relative_to_absolute (timeout);
948 fm->cont = cont;
949 fm->cont_cls = cont_cls;
950 /* 1 MBit/s typical data rate, 1430 byte fragments => ~100 ms per message */
951 fm->fragcontext =
952 GNUNET_FRAGMENT_context_create (plugin->env->stats, WLAN_MTU,
953 &plugin->tracker,
954 endpoint->msg_delay,
955 endpoint->ack_delay,
956 msg,
957 &transmit_fragment, fm);
958 fm->timeout_task =
959 GNUNET_SCHEDULER_add_delayed (timeout,
960 &fragmentmessage_timeout, fm);
961 GNUNET_CONTAINER_DLL_insert_tail (endpoint->sending_messages_head,
962 endpoint->sending_messages_tail,
963 fm);
964}
965
966
967/**
968 * Free a MAC endpoint.
969 *
970 * @param endpoint pointer to the MacEndpoint to free
971 */
972static void
973free_macendpoint (struct MacEndpoint *endpoint)
974{
975 struct Plugin *plugin = endpoint->plugin;
976 struct FragmentMessage *fm;
977 struct Session *session;
978
979 GNUNET_STATISTICS_update (plugin->env->stats,
980 _("# Bluetooth MAC endpoints allocated"), -1, GNUNET_NO);
981 while (NULL != (session = endpoint->sessions_head))
982 free_session (session);
983 while (NULL != (fm = endpoint->sending_messages_head))
984 free_fragment_message (fm);
985 GNUNET_CONTAINER_DLL_remove (plugin->mac_head,
986 plugin->mac_tail,
987 endpoint);
988
989 if (NULL != endpoint->defrag)
990 {
991 GNUNET_DEFRAGMENT_context_destroy(endpoint->defrag);
992 endpoint->defrag = NULL;
993 }
994
995 plugin->mac_count--;
996 if (GNUNET_SCHEDULER_NO_TASK != endpoint->timeout_task)
997 {
998 GNUNET_SCHEDULER_cancel (endpoint->timeout_task);
999 endpoint->timeout_task = GNUNET_SCHEDULER_NO_TASK;
1000 }
1001 GNUNET_free (endpoint);
1002}
1003
1004
1005/**
1006 * A MAC endpoint is timing out. Clean up.
1007 *
1008 * @param cls pointer to the MacEndpoint
1009 * @param tc pointer to the GNUNET_SCHEDULER_TaskContext
1010 */
1011static void
1012macendpoint_timeout (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1013{
1014 struct MacEndpoint *endpoint = cls;
1015 struct GNUNET_TIME_Relative timeout;
1016
1017 endpoint->timeout_task = GNUNET_SCHEDULER_NO_TASK;
1018 timeout = GNUNET_TIME_absolute_get_remaining (endpoint->timeout);
1019 if (0 == timeout.rel_value_us)
1020 {
1021 free_macendpoint (endpoint);
1022 return;
1023 }
1024 endpoint->timeout_task =
1025 GNUNET_SCHEDULER_add_delayed (timeout, &macendpoint_timeout,
1026 endpoint);
1027}
1028
1029
1030/**
1031 * Find (or create) a MacEndpoint with a specific MAC address
1032 *
1033 * @param plugin pointer to the plugin struct
1034 * @param addr the MAC address of the endpoint
1035 * @return handle to our data structure for this MAC
1036 */
1037static struct MacEndpoint *
1038create_macendpoint (struct Plugin *plugin,
1039 struct WlanAddress *addr)
1040{
1041 struct MacEndpoint *pos;
1042
1043 for (pos = plugin->mac_head; NULL != pos; pos = pos->next)
1044 if (0 == memcmp (addr, &pos->addr, sizeof (struct WlanAddress)))
1045 return pos;
1046 pos = GNUNET_new (struct MacEndpoint);
1047 pos->addr = (*addr);
1048 pos->plugin = plugin;
1049 pos->defrag =
1050 GNUNET_DEFRAGMENT_context_create (plugin->env->stats, WLAN_MTU,
1051 MESSAGES_IN_DEFRAG_QUEUE_PER_MAC,
1052 pos,
1053 &bluetooth_data_message_handler,
1054 &send_ack);
1055
1056 pos->msg_delay = GNUNET_TIME_UNIT_MILLISECONDS;
1057 pos->ack_delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
1058 100);
1059 pos->timeout = GNUNET_TIME_relative_to_absolute (MACENDPOINT_TIMEOUT);
1060 pos->timeout_task =
1061 GNUNET_SCHEDULER_add_delayed (MACENDPOINT_TIMEOUT, &macendpoint_timeout,
1062 pos);
1063 GNUNET_CONTAINER_DLL_insert (plugin->mac_head, plugin->mac_tail, pos);
1064 plugin->mac_count++;
1065 GNUNET_STATISTICS_update (plugin->env->stats,
1066 _("# Bluetooth MAC endpoints allocated"),
1067 1, GNUNET_NO);
1068 LOG (GNUNET_ERROR_TYPE_DEBUG,
1069 "New MAC endpoint `%s'\n",
1070 bluetooth_plugin_address_to_string(NULL,
1071 addr,
1072 sizeof (struct WlanAddress)));
1073 return pos;
1074}
1075
1076
1077/**
1078 * Function obtain the network type for a session
1079 *
1080 * @param cls closure ('struct Plugin*')
1081 * @param session the session
1082 * @return the network type in HBO or GNUNET_SYSERR
1083 */
1084static enum GNUNET_ATS_Network_Type
1085bluetooth_get_network (void *cls,
1086 struct Session *session)
1087{
1088 GNUNET_assert (NULL != session);
1089 return GNUNET_ATS_NET_BT;
1090}
1091
1092
1093/**
1094 * Look up a session for a peer and create a new session if none is found
1095 *
1096 * @param endpoint pointer to the mac endpoint of the peer
1097 * @param peer peer identity to use for this session
1098 * @return returns the session
1099 */
1100static struct Session *
1101get_session (struct MacEndpoint *endpoint,
1102 const struct GNUNET_PeerIdentity *peer)
1103{
1104 struct Session *session;
1105 if (NULL != (session = lookup_session (endpoint, peer)))
1106 return session;
1107 return create_session (endpoint, peer);
1108}
1109
1110
1111/**
1112 * Creates a new outbound session the transport service will use to send data to the
1113 * peer
1114 *
1115 * @param cls the plugin
1116 * @param address the address
1117 * @return the session or NULL of max connections exceeded
1118 */
1119static struct Session *
1120bluetooth_plugin_get_session (void *cls,
1121 const struct GNUNET_HELLO_Address *address)
1122{
1123 struct Plugin *plugin = cls;
1124 struct MacEndpoint *endpoint;
1125
1126 if (NULL == address)
1127 return NULL;
1128 if (sizeof (struct WlanAddress) != address->address_length)
1129 {
1130 GNUNET_break (0);
1131 return NULL;
1132 }
1133 LOG (GNUNET_ERROR_TYPE_DEBUG,
1134 "Service asked to create session for peer `%s' with MAC `%s'\n",
1135 GNUNET_i2s (&address->peer),
1136 bluetooth_plugin_address_to_string(NULL,
1137 address->address,
1138 address->address_length));
1139 endpoint = create_macendpoint (plugin,
1140 (struct WlanAddress *) address->address);
1141 return get_session (endpoint, &address->peer);
1142}
1143
1144
1145/**
1146 * Function that can be used to force the plugin to disconnect
1147 * from the given peer and cancel all previous transmissions
1148 * (and their continuation).
1149 *
1150 * @param cls closure
1151 * @param target peer from which to disconnect
1152 */
1153static void
1154bluetooth_plugin_disconnect_peer (void *cls, const struct GNUNET_PeerIdentity *target)
1155{
1156 struct Plugin *plugin = cls;
1157 struct Session *session;
1158 struct MacEndpoint *endpoint;
1159
1160 for (endpoint = plugin->mac_head; NULL != endpoint; endpoint = endpoint->next)
1161 for (session = endpoint->sessions_head; NULL != session; session = session->next)
1162 if (0 == memcmp (target, &session->target,
1163 sizeof (struct GNUNET_PeerIdentity)))
1164 {
1165 free_session (session);
1166 break; /* inner-loop only (in case peer has another MAC as well!) */
1167 }
1168}
1169
1170
1171/**
1172 * Function that can be used to force the plugin to disconnect
1173 * from the given peer and cancel all previous transmissions
1174 * (and their continuation).
1175 *
1176 * @param cls closure
1177 * @param session session to disconnect
1178 */
1179static int
1180bluetooth_plugin_disconnect_session (void *cls,
1181 struct Session *session)
1182{
1183 free_session (session);
1184 return GNUNET_OK;
1185}
1186
1187
1188/**
1189 * Function that is called to get the keepalive factor.
1190 * #GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT is divided by this number to
1191 * calculate the interval between keepalive packets.
1192 *
1193 * @param cls closure with the `struct Plugin`
1194 * @return keepalive factor
1195 */
1196static unsigned int
1197bluetooth_query_keepalive_factor (void *cls)
1198{
1199 return 3;
1200}
1201
1202
1203/**
1204 * Function that can be used by the transport service to transmit
1205 * a message using the plugin. Note that in the case of a
1206 * peer disconnecting, the continuation MUST be called
1207 * prior to the disconnect notification itself. This function
1208 * will be called with this peer's HELLO message to initiate
1209 * a fresh connection to another peer.
1210 *
1211 * @param cls closure
1212 * @param session which session must be used
1213 * @param msgbuf the message to transmit
1214 * @param msgbuf_size number of bytes in 'msgbuf'
1215 * @param priority how important is the message (most plugins will
1216 * ignore message priority and just FIFO)
1217 * @param to how long to wait at most for the transmission (does not
1218 * require plugins to discard the message after the timeout,
1219 * just advisory for the desired delay; most plugins will ignore
1220 * this as well)
1221 * @param cont continuation to call once the message has
1222 * been transmitted (or if the transport is ready
1223 * for the next transmission call; or if the
1224 * peer disconnected...); can be NULL
1225 * @param cont_cls closure for cont
1226 * @return number of bytes used (on the physical network, with overheads);
1227 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1228 * and does NOT mean that the message was not transmitted (DV)
1229 */
1230static ssize_t
1231bluetooth_plugin_send (void *cls,
1232 struct Session *session,
1233 const char *msgbuf,
1234 size_t msgbuf_size,
1235 unsigned int priority,
1236 struct GNUNET_TIME_Relative to,
1237 GNUNET_TRANSPORT_TransmitContinuation cont,
1238 void *cont_cls)
1239{
1240 struct Plugin *plugin = cls;
1241 struct WlanHeader *wlanheader;
1242 size_t size = msgbuf_size + sizeof (struct WlanHeader);
1243 char buf[size] GNUNET_ALIGN;
1244
1245 LOG (GNUNET_ERROR_TYPE_DEBUG,
1246 "Transmitting %u bytes of payload to peer `%s' (starting with %u byte message of type %u)\n",
1247 msgbuf_size,
1248 GNUNET_i2s (&session->target),
1249 (unsigned int) ntohs (((struct GNUNET_MessageHeader*)msgbuf)->size),
1250 (unsigned int) ntohs (((struct GNUNET_MessageHeader*)msgbuf)->type));
1251 wlanheader = (struct WlanHeader *) buf;
1252 wlanheader->header.size = htons (msgbuf_size + sizeof (struct WlanHeader));
1253 wlanheader->header.type = htons (GNUNET_MESSAGE_TYPE_WLAN_DATA);
1254 wlanheader->sender = *plugin->env->my_identity;
1255 wlanheader->target = session->target;
1256 wlanheader->crc = htonl (GNUNET_CRYPTO_crc32_n (msgbuf, msgbuf_size));
1257 memcpy (&wlanheader[1], msgbuf, msgbuf_size);
1258
1259 GNUNET_STATISTICS_update (plugin->env->stats,
1260 "# bytes currently in Bluetooth buffers",
1261 msgbuf_size, GNUNET_NO);
1262
1263 send_with_fragmentation (session->mac,
1264 to,
1265 &session->target,
1266 &wlanheader->header,
1267 msgbuf_size,
1268 cont, cont_cls);
1269 return size;
1270}
1271
1272
1273/**
1274 * We have received data from the WLAN via some session. Process depending
1275 * on the message type (HELLO, DATA, FRAGMENTATION or FRAGMENTATION-ACK).
1276 *
1277 * @param cls pointer to the plugin
1278 * @param client pointer to the session this message belongs to
1279 * @param hdr start of the message
1280 */
1281static int
1282process_data (void *cls, void *client, const struct GNUNET_MessageHeader *hdr)
1283{
1284 struct Plugin *plugin = cls;
1285 struct GNUNET_HELLO_Address *address;
1286 struct MacAndSession *mas = client;
1287 struct MacAndSession xmas;
1288 struct GNUNET_ATS_Information ats;
1289 struct FragmentMessage *fm;
1290 struct GNUNET_PeerIdentity tmpsource;
1291 const struct WlanHeader *wlanheader;
1292 int ret;
1293 uint16_t msize;
1294
1295 ats.type = htonl (GNUNET_ATS_NETWORK_TYPE);
1296 ats.value = htonl (GNUNET_ATS_NET_BT);
1297 msize = ntohs (hdr->size);
1298
1299 GNUNET_STATISTICS_update (plugin->env->stats,
1300 "# bytes received via Bluetooth",
1301 msize, GNUNET_NO);
1302
1303 switch (ntohs (hdr->type))
1304 {
1305 case GNUNET_MESSAGE_TYPE_HELLO:
1306 if (GNUNET_OK !=
1307 GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *) hdr, &tmpsource))
1308 {
1309 GNUNET_break_op (0);
1310 break;
1311 }
1312 if (NULL == mas->endpoint)
1313 {
1314 GNUNET_break (0);
1315 break;
1316 }
1317
1318 LOG (GNUNET_ERROR_TYPE_DEBUG,
1319 "Processing %u bytes of HELLO from peer `%s' at MAC %s\n",
1320 (unsigned int) msize,
1321 GNUNET_i2s (&tmpsource),
1322 bluetooth_plugin_address_to_string (NULL,
1323 &mas->endpoint->addr,
1324 sizeof (mas->endpoint->addr)));
1325
1326 GNUNET_STATISTICS_update (plugin->env->stats,
1327 _("# HELLO messages received via Bluetooth"), 1,
1328 GNUNET_NO);
1329
1330 address = GNUNET_HELLO_address_allocate (&tmpsource, PLUGIN_NAME,
1331 &mas->endpoint->addr, sizeof (mas->endpoint->addr),
1332 GNUNET_HELLO_ADDRESS_INFO_INBOUND);
1333 plugin->env->receive (plugin->env->cls,
1334 address, mas->session, hdr);
1335 plugin->env->update_address_metrics (plugin->env->cls,
1336 address, mas->session, &ats, 1);
1337 GNUNET_HELLO_address_free (address);
1338 break;
1339 case GNUNET_MESSAGE_TYPE_FRAGMENT:
1340 if (NULL == mas->endpoint)
1341 {
1342 GNUNET_break (0);
1343 break;
1344 }
1345 LOG (GNUNET_ERROR_TYPE_DEBUG,
1346 "Processing %u bytes of FRAGMENT from MAC %s\n",
1347 (unsigned int) msize,
1348 bluetooth_plugin_address_to_string (NULL,
1349 &mas->endpoint->addr,
1350 sizeof (mas->endpoint->addr)));
1351 GNUNET_STATISTICS_update (plugin->env->stats,
1352 _("# fragments received via Bluetooth"),
1353 1,
1354 GNUNET_NO);
1355 (void) GNUNET_DEFRAGMENT_process_fragment (mas->endpoint->defrag,
1356 hdr);
1357 break;
1358 case GNUNET_MESSAGE_TYPE_FRAGMENT_ACK:
1359 if (NULL == mas->endpoint)
1360 {
1361 GNUNET_break (0);
1362 break;
1363 }
1364 GNUNET_STATISTICS_update (plugin->env->stats, _("# ACKs received via Bluetooth"),
1365 1, GNUNET_NO);
1366 for (fm = mas->endpoint->sending_messages_head; NULL != fm; fm = fm->next)
1367 {
1368 ret = GNUNET_FRAGMENT_process_ack (fm->fragcontext, hdr);
1369 if (GNUNET_OK == ret)
1370 {
1371 LOG (GNUNET_ERROR_TYPE_DEBUG,
1372 "Got last ACK, finished message transmission to `%s' (%p)\n",
1373 bluetooth_plugin_address_to_string (NULL,
1374 &mas->endpoint->addr,
1375 sizeof (mas->endpoint->addr)),
1376 fm);
1377 mas->endpoint->timeout = GNUNET_TIME_relative_to_absolute (MACENDPOINT_TIMEOUT);
1378 if (NULL != fm->cont)
1379 {
1380 fm->cont (fm->cont_cls, &fm->target, GNUNET_OK, fm->size_payload, fm->size_on_wire);
1381 fm->cont = NULL;
1382 }
1383 free_fragment_message (fm);
1384 break;
1385 }
1386 if (GNUNET_NO == ret)
1387 {
1388 LOG (GNUNET_ERROR_TYPE_DEBUG,
1389 "Got an ACK, message transmission to `%s' not yet finished\n",
1390 bluetooth_plugin_address_to_string (NULL,
1391 &mas->endpoint->addr,
1392 sizeof (mas->endpoint->addr)));
1393 break;
1394 }
1395 }
1396 LOG (GNUNET_ERROR_TYPE_DEBUG,
1397 "ACK not matched against any active fragmentation with MAC `%s'\n",
1398 bluetooth_plugin_address_to_string (NULL,
1399 &mas->endpoint->addr,
1400 sizeof (mas->endpoint->addr)));
1401 break;
1402 case GNUNET_MESSAGE_TYPE_WLAN_DATA:
1403 if (NULL == mas->endpoint)
1404 {
1405 GNUNET_break (0);
1406 break;
1407 }
1408 if (msize < sizeof (struct WlanHeader))
1409 {
1410 GNUNET_break (0);
1411 break;
1412 }
1413 wlanheader = (const struct WlanHeader *) hdr;
1414 if (0 != memcmp (&wlanheader->target,
1415 plugin->env->my_identity,
1416 sizeof (struct GNUNET_PeerIdentity)))
1417 {
1418 LOG (GNUNET_ERROR_TYPE_DEBUG,
1419 "Bluetooth data for `%s', not for me, ignoring\n",
1420 GNUNET_i2s (&wlanheader->target));
1421 break;
1422 }
1423 if (ntohl (wlanheader->crc) !=
1424 GNUNET_CRYPTO_crc32_n (&wlanheader[1], msize - sizeof (struct WlanHeader)))
1425 {
1426 GNUNET_STATISTICS_update (plugin->env->stats,
1427 _("# Bluetooth DATA messages discarded due to CRC32 error"), 1,
1428 GNUNET_NO);
1429 break;
1430 }
1431 xmas.endpoint = mas->endpoint;
1432 xmas.session = create_session (mas->endpoint, &wlanheader->sender);
1433 LOG (GNUNET_ERROR_TYPE_DEBUG,
1434 "Processing %u bytes of BLUETOOTH DATA from peer `%s'\n",
1435 (unsigned int) msize,
1436 GNUNET_i2s (&wlanheader->sender));
1437 (void) GNUNET_SERVER_mst_receive (plugin->wlan_header_payload_tokenizer,
1438 &xmas,
1439 (const char *) &wlanheader[1],
1440 msize - sizeof (struct WlanHeader),
1441 GNUNET_YES, GNUNET_NO);
1442 break;
1443 default:
1444 if (NULL == mas->endpoint)
1445 {
1446 GNUNET_break (0);
1447 break;
1448 }
1449 if (NULL == mas->session)
1450 {
1451 GNUNET_break (0);
1452 break;
1453 }
1454 LOG (GNUNET_ERROR_TYPE_DEBUG,
1455 "Received packet with %u bytes of type %u from peer %s\n",
1456 (unsigned int) msize,
1457 (unsigned int) ntohs (hdr->type),
1458 GNUNET_i2s (&mas->session->target));
1459 plugin->env->receive (plugin->env->cls,
1460 mas->session->address,
1461 mas->session,
1462 hdr);
1463 plugin->env->update_address_metrics (plugin->env->cls,
1464 mas->session->address,
1465 mas->session,
1466 &ats, 1);
1467 break;
1468 }
1469 return GNUNET_OK;
1470}
1471
1472
1473/**
1474 * Function used for to process the data from the suid process
1475 *
1476 * @param cls the plugin handle
1477 * @param client client that send the data (not used)
1478 * @param hdr header of the GNUNET_MessageHeader
1479 */
1480static int
1481handle_helper_message (void *cls, void *client,
1482 const struct GNUNET_MessageHeader *hdr)
1483{
1484 struct Plugin *plugin = cls;
1485 struct GNUNET_HELLO_Address *address;
1486 const struct GNUNET_TRANSPORT_WLAN_RadiotapReceiveMessage *rxinfo;
1487 const struct GNUNET_TRANSPORT_WLAN_HelperControlMessage *cm;
1488 struct WlanAddress wa;
1489 struct MacAndSession mas;
1490 uint16_t msize;
1491
1492 msize = ntohs (hdr->size);
1493 switch (ntohs (hdr->type))
1494 {
1495 case GNUNET_MESSAGE_TYPE_WLAN_HELPER_CONTROL:
1496 if (msize != sizeof (struct GNUNET_TRANSPORT_WLAN_HelperControlMessage))
1497 {
1498 GNUNET_break (0);
1499 break;
1500 }
1501 cm = (const struct GNUNET_TRANSPORT_WLAN_HelperControlMessage *) hdr;
1502 if (GNUNET_YES == plugin->have_mac)
1503 {
1504 if (0 == memcmp (&plugin->mac_address,
1505 &cm->mac,
1506 sizeof (struct GNUNET_TRANSPORT_WLAN_MacAddress)))
1507 break; /* no change */
1508 /* remove old address */
1509 memset (&wa, 0, sizeof (struct WlanAddress));
1510 wa.mac = plugin->mac_address;
1511 wa.options = htonl(plugin->options);
1512 address = GNUNET_HELLO_address_allocate (plugin->env->my_identity,
1513 PLUGIN_NAME, &wa, sizeof (wa), GNUNET_HELLO_ADDRESS_INFO_NONE);
1514 plugin->env->notify_address (plugin->env->cls, GNUNET_NO, address);
1515 GNUNET_HELLO_address_free (address);
1516 }
1517 plugin->mac_address = cm->mac;
1518 plugin->have_mac = GNUNET_YES;
1519 memset (&wa, 0, sizeof (struct WlanAddress));
1520 wa.mac = plugin->mac_address;
1521 wa.options = htonl(plugin->options);
1522 address = GNUNET_HELLO_address_allocate (plugin->env->my_identity,
1523 PLUGIN_NAME, &wa, sizeof (wa), GNUNET_HELLO_ADDRESS_INFO_NONE);
1524
1525 LOG (GNUNET_ERROR_TYPE_DEBUG,
1526 "Received BT_HELPER_CONTROL message with MAC address `%s' for peer `%s'\n",
1527 mac_to_string (&cm->mac),
1528 GNUNET_i2s (plugin->env->my_identity));
1529 plugin->env->notify_address (plugin->env->cls, GNUNET_YES, address);
1530 GNUNET_HELLO_address_free (address);
1531
1532 break;
1533 case GNUNET_MESSAGE_TYPE_WLAN_DATA_FROM_HELPER:
1534 LOG (GNUNET_ERROR_TYPE_DEBUG,
1535 "Got data message from helper with %u bytes\n",
1536 msize);
1537 GNUNET_STATISTICS_update (plugin->env->stats,
1538 _("# DATA messages received via Bluetooth"), 1,
1539 GNUNET_NO);
1540 if (msize < sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapReceiveMessage))
1541 {
1542 GNUNET_break (0);
1543 LOG (GNUNET_ERROR_TYPE_DEBUG,
1544 "Size of packet is too small (%u bytes)\n",
1545 msize);
1546 break;
1547 }
1548 rxinfo = (const struct GNUNET_TRANSPORT_WLAN_RadiotapReceiveMessage *) hdr;
1549
1550 /* check if message is actually for us */
1551 if (0 != memcmp (&rxinfo->frame.addr3, &mac_bssid_gnunet,
1552 sizeof (struct GNUNET_TRANSPORT_WLAN_MacAddress)))
1553 {
1554 /* Not the GNUnet BSSID */
1555 break;
1556 }
1557 if ( (0 != memcmp (&rxinfo->frame.addr1, &bc_all_mac,
1558 sizeof (struct GNUNET_TRANSPORT_WLAN_MacAddress))) &&
1559 (0 != memcmp (&rxinfo->frame.addr1, &plugin->mac_address,
1560 sizeof (struct GNUNET_TRANSPORT_WLAN_MacAddress))) )
1561 {
1562 /* Neither broadcast nor specifically for us */
1563 break;
1564 }
1565 if (0 == memcmp (&rxinfo->frame.addr2, &plugin->mac_address,
1566 sizeof (struct GNUNET_TRANSPORT_WLAN_MacAddress)))
1567 {
1568 /* packet is FROM us, thus not FOR us */
1569 break;
1570 }
1571
1572 GNUNET_STATISTICS_update (plugin->env->stats,
1573 _("# Bluetooth DATA messages processed"),
1574 1, GNUNET_NO);
1575 LOG (GNUNET_ERROR_TYPE_DEBUG,
1576 "Receiving %u bytes of data from MAC `%s'\n",
1577 (unsigned int) (msize - sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapReceiveMessage)),
1578 mac_to_string (&rxinfo->frame.addr2));
1579 wa.mac = rxinfo->frame.addr2;
1580 wa.options = htonl (0);
1581 mas.endpoint = create_macendpoint (plugin, &wa);
1582 mas.session = NULL;
1583 (void) GNUNET_SERVER_mst_receive (plugin->helper_payload_tokenizer,
1584 &mas,
1585 (const char*) &rxinfo[1],
1586 msize - sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapReceiveMessage),
1587 GNUNET_YES, GNUNET_NO);
1588 break;
1589 default:
1590 GNUNET_break (0);
1591 LOG (GNUNET_ERROR_TYPE_DEBUG,
1592 "Unexpected message of type %u (%u bytes)",
1593 ntohs (hdr->type), ntohs (hdr->size));
1594 break;
1595 }
1596 return GNUNET_OK;
1597}
1598
1599
1600
1601/**
1602 * Task to (periodically) send a HELLO beacon
1603 *
1604 * @param cls pointer to the plugin struct
1605 * @param tc scheduler context
1606 */
1607static void
1608send_hello_beacon (void *cls,
1609 const struct GNUNET_SCHEDULER_TaskContext *tc)
1610{
1611 struct Plugin *plugin = cls;
1612 uint16_t size;
1613 uint16_t hello_size;
1614 struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage *radioHeader;
1615 const struct GNUNET_MessageHeader *hello;
1616
1617 hello = plugin->env->get_our_hello ();
1618 hello_size = GNUNET_HELLO_size ((struct GNUNET_HELLO_Message *) hello);
1619 GNUNET_assert (sizeof (struct WlanHeader) + hello_size <= WLAN_MTU);
1620 size = sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage) + hello_size;
1621 {
1622 char buf[size] GNUNET_ALIGN;
1623
1624 LOG (GNUNET_ERROR_TYPE_DEBUG,
1625 "Sending %u byte HELLO beacon\n",
1626 (unsigned int) size);
1627 radioHeader = (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage*) buf;
1628 get_radiotap_header (NULL, radioHeader, size);
1629 get_wlan_header (plugin, &radioHeader->frame, &bc_all_mac, size);
1630 memcpy (&radioHeader[1], hello, hello_size);
1631 if (NULL !=
1632 GNUNET_HELPER_send (plugin->suid_helper,
1633 &radioHeader->header,
1634 GNUNET_YES /* can drop */,
1635 NULL, NULL))
1636 GNUNET_STATISTICS_update (plugin->env->stats,
1637 _("# HELLO beacons sent via Bluetooth"),
1638 1, GNUNET_NO);
1639 }
1640 plugin->beacon_task =
1641 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
1642 (HELLO_BEACON_SCALING_FACTOR,
1643 plugin->mac_count + 1),
1644 &send_hello_beacon,
1645 plugin);
1646
1647}
1648
1649
1650/**
1651 * Another peer has suggested an address for this
1652 * peer and transport plugin. Check that this could be a valid
1653 * address. If so, consider adding it to the list
1654 * of addresses.
1655 *
1656 * @param cls closure
1657 * @param addr pointer to the address
1658 * @param addrlen length of @a addr
1659 * @return #GNUNET_OK if this is a plausible address for this peer
1660 * and transport
1661 */
1662static int
1663bluetooth_plugin_address_suggested (void *cls,
1664 const void *addr,
1665 size_t addrlen)
1666{
1667 struct Plugin *plugin = cls;
1668 struct WlanAddress *wa = (struct WlanAddress *) addr;
1669
1670 if (addrlen != sizeof (struct WlanAddress))
1671 {
1672 GNUNET_break_op (0);
1673 return GNUNET_SYSERR;
1674 }
1675 if (GNUNET_YES != plugin->have_mac)
1676 {
1677 LOG (GNUNET_ERROR_TYPE_DEBUG,
1678 "Rejecting MAC `%s': I don't know my MAC!\n",
1679 mac_to_string (addr));
1680 return GNUNET_NO; /* don't know my MAC */
1681 }
1682 if (0 != memcmp (&wa->mac,
1683 &plugin->mac_address,
1684 sizeof (wa->mac)))
1685 {
1686 LOG (GNUNET_ERROR_TYPE_DEBUG,
1687 "Rejecting MAC `%s': not my MAC!\n",
1688 mac_to_string (addr));
1689 return GNUNET_NO; /* not my MAC */
1690 }
1691 return GNUNET_OK;
1692}
1693
1694
1695/**
1696 * Function called for a quick conversion of the binary address to
1697 * a numeric address. Note that the caller must not free the
1698 * address and that the next call to this function is allowed
1699 * to override the address again.
1700 *
1701 * @param cls closure
1702 * @param addr binary address
1703 * @param addrlen length of the @a addr
1704 * @return string representing the same address
1705 */
1706static const char *
1707bluetooth_plugin_address_to_string (void *cls,
1708 const void *addr,
1709 size_t addrlen)
1710{
1711 const struct GNUNET_TRANSPORT_WLAN_MacAddress *mac;
1712 static char macstr[36];
1713
1714 if (sizeof (struct WlanAddress) != addrlen)
1715 {
1716 GNUNET_break (0);
1717 return NULL;
1718 }
1719 mac = &((struct WlanAddress *) addr)->mac;
1720 GNUNET_snprintf (macstr,
1721 sizeof (macstr),
1722 "%s.%u.%s",
1723 PLUGIN_NAME,
1724 ntohl (((struct WlanAddress *) addr)->options),
1725 mac_to_string (mac));
1726 return macstr;
1727}
1728
1729
1730/**
1731 * Convert the transports address to a nice, human-readable format.
1732 *
1733 * @param cls closure
1734 * @param type name of the transport that generated the address
1735 * @param addr one of the addresses of the host, NULL for the last address
1736 * the specific address format depends on the transport
1737 * @param addrlen length of the @a addr
1738 * @param numeric should (IP) addresses be displayed in numeric form?
1739 * @param timeout after how long should we give up?
1740 * @param asc function to call on each string
1741 * @param asc_cls closure for @a asc
1742 */
1743static void
1744bluetooth_plugin_address_pretty_printer (void *cls,
1745 const char *type,
1746 const void *addr,
1747 size_t addrlen,
1748 int numeric,
1749 struct GNUNET_TIME_Relative timeout,
1750 GNUNET_TRANSPORT_AddressStringCallback asc,
1751 void *asc_cls)
1752{
1753 const char *ret;
1754
1755 if (sizeof (struct WlanAddress) == addrlen)
1756 ret = bluetooth_plugin_address_to_string(NULL, addr, addrlen);
1757 else
1758 ret = NULL;
1759 asc (asc_cls,
1760 ret,
1761 (NULL == ret) ? GNUNET_SYSERR : GNUNET_OK);
1762 asc (asc_cls, NULL, GNUNET_OK);
1763}
1764
1765
1766/**
1767 * Exit point from the plugin.
1768 *
1769 * @param cls pointer to the api struct
1770 */
1771void *
1772libgnunet_plugin_transport_bluetooth_done (void *cls)
1773{
1774 struct WlanAddress wa;
1775 struct GNUNET_HELLO_Address *address;
1776 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1777 struct Plugin *plugin = api->cls;
1778 struct MacEndpoint *endpoint;
1779 struct MacEndpoint *endpoint_next;
1780
1781 if (NULL == plugin)
1782 {
1783 GNUNET_free (api);
1784 return NULL;
1785 }
1786
1787 if (GNUNET_YES == plugin->have_mac)
1788 {
1789 memset (&wa, 0, sizeof(wa));
1790 wa.options = htonl (plugin->options);
1791 wa.mac = plugin->mac_address;
1792 address = GNUNET_HELLO_address_allocate (plugin->env->my_identity,
1793 PLUGIN_NAME, &wa, sizeof (struct WlanAddress),
1794 GNUNET_HELLO_ADDRESS_INFO_NONE);
1795
1796 plugin->env->notify_address (plugin->env->cls, GNUNET_NO, address);
1797 plugin->have_mac = GNUNET_NO;
1798
1799 GNUNET_HELLO_address_free (address);
1800 }
1801
1802 if (GNUNET_SCHEDULER_NO_TASK != plugin->beacon_task)
1803 {
1804 GNUNET_SCHEDULER_cancel (plugin->beacon_task);
1805 plugin->beacon_task = GNUNET_SCHEDULER_NO_TASK;
1806 }
1807 if (NULL != plugin->suid_helper)
1808 {
1809 GNUNET_HELPER_stop (plugin->suid_helper, GNUNET_NO);
1810 plugin->suid_helper = NULL;
1811 }
1812 endpoint_next = plugin->mac_head;
1813 while (NULL != (endpoint = endpoint_next))
1814 {
1815 endpoint_next = endpoint->next;
1816 free_macendpoint (endpoint);
1817 }
1818 if (NULL != plugin->fragment_data_tokenizer)
1819 {
1820 GNUNET_SERVER_mst_destroy (plugin->fragment_data_tokenizer);
1821 plugin->fragment_data_tokenizer = NULL;
1822 }
1823 if (NULL != plugin->wlan_header_payload_tokenizer)
1824 {
1825 GNUNET_SERVER_mst_destroy (plugin->wlan_header_payload_tokenizer);
1826 plugin->wlan_header_payload_tokenizer = NULL;
1827 }
1828 if (NULL != plugin->helper_payload_tokenizer)
1829 {
1830 GNUNET_SERVER_mst_destroy (plugin->helper_payload_tokenizer);
1831 plugin->helper_payload_tokenizer = NULL;
1832 }
1833 GNUNET_free_non_null (plugin->interface);
1834 GNUNET_free (plugin);
1835 GNUNET_free (api);
1836 return NULL;
1837}
1838
1839
1840/**
1841 * Function called to convert a string address to
1842 * a binary address.
1843 *
1844 * @param cls closure (`struct Plugin *`)
1845 * @param addr string address
1846 * @param addrlen length of the @a addr
1847 * @param buf location to store the buffer
1848 * @param added location to store the number of bytes in the buffer.
1849 * If the function returns #GNUNET_SYSERR, its contents are undefined.
1850 * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
1851 */
1852static int
1853bluetooth_string_to_address (void *cls,
1854 const char *addr,
1855 uint16_t addrlen,
1856 void **buf,
1857 size_t *added)
1858{
1859 struct WlanAddress *wa;
1860 unsigned int a[6];
1861 unsigned int i;
1862 char plugin[10];
1863 uint32_t options;
1864
1865 if ((NULL == addr) || (addrlen == 0))
1866 {
1867 GNUNET_break (0);
1868 return GNUNET_SYSERR;
1869 }
1870 if ('\0' != addr[addrlen - 1])
1871 {
1872 GNUNET_break (0);
1873 return GNUNET_SYSERR;
1874 }
1875 if (strlen (addr) != addrlen - 1)
1876 {
1877 GNUNET_break (0);
1878 return GNUNET_SYSERR;
1879 }
1880
1881 if (8 != SSCANF (addr,
1882 "%9s.%u.%X:%X:%X:%X:%X:%X",
1883 plugin, &options,
1884 &a[0], &a[1], &a[2], &a[3], &a[4], &a[5]))
1885 {
1886 GNUNET_break (0);
1887 return GNUNET_SYSERR;
1888 }
1889 wa = GNUNET_new (struct WlanAddress);
1890 for (i=0;i<6;i++)
1891 wa->mac.mac[i] = a[i];
1892 wa->options = htonl (0);
1893 *buf = wa;
1894 *added = sizeof (struct WlanAddress);
1895 return GNUNET_OK;
1896}
1897
1898
1899static void
1900bluetooth_plugin_update_session_timeout (void *cls,
1901 const struct GNUNET_PeerIdentity *peer,
1902 struct Session *session)
1903{
1904 if (GNUNET_SCHEDULER_NO_TASK != session->timeout_task)
1905 GNUNET_SCHEDULER_cancel (session->timeout_task);
1906 session->timeout_task
1907 = GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT,
1908 &session_timeout,
1909 session);
1910}
1911
1912
1913/**
1914 * Entry point for the plugin.
1915 *
1916 * @param cls closure, the `struct GNUNET_TRANSPORT_PluginEnvironment *`
1917 * @return the `struct GNUNET_TRANSPORT_PluginFunctions *` or NULL on error
1918 */
1919void *
1920libgnunet_plugin_transport_bluetooth_init (void *cls)
1921{
1922 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
1923 struct GNUNET_TRANSPORT_PluginFunctions *api;
1924 struct Plugin *plugin;
1925 char *interface;
1926 unsigned long long testmode;
1927 char *binary;
1928
1929 /* check for 'special' mode */
1930 if (NULL == env->receive)
1931 {
1932 /* run in 'stub' mode (i.e. as part of gnunet-peerinfo), don't fully
1933 initialze the plugin or the API */
1934 api = GNUNET_new (struct GNUNET_TRANSPORT_PluginFunctions);
1935 api->cls = NULL;
1936 api->address_pretty_printer = &bluetooth_plugin_address_pretty_printer;
1937 api->address_to_string = &bluetooth_plugin_address_to_string;
1938 api->string_to_address = &bluetooth_string_to_address;
1939 return api;
1940 }
1941
1942 testmode = 0;
1943 /* check configuration */
1944 if ( (GNUNET_YES ==
1945 GNUNET_CONFIGURATION_have_value (env->cfg, "transport-bluetooth", "TESTMODE")) &&
1946 ( (GNUNET_SYSERR ==
1947 GNUNET_CONFIGURATION_get_value_number (env->cfg, "transport-bluetooth",
1948 "TESTMODE", &testmode)) ||
1949 (testmode > 2) ) )
1950 {
1951 GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
1952 "transport-bluetooth", "TESTMODE");
1953 return NULL;
1954 }
1955 binary = GNUNET_OS_get_libexec_binary_path ("gnunet-helper-transport-bluetooth");
1956 if ( (0 == testmode) &&
1957 (GNUNET_YES != GNUNET_OS_check_helper_binary (binary, GNUNET_YES, NULL)) )
1958 {
1959 LOG (GNUNET_ERROR_TYPE_ERROR,
1960 _("Helper binary `%s' not SUID, cannot run bluetooth transport\n"),
1961 "gnunet-helper-transport-bluetooth");
1962 GNUNET_free (binary);
1963 return NULL;
1964 }
1965 GNUNET_free (binary);
1966 if (GNUNET_YES !=
1967 GNUNET_CONFIGURATION_get_value_string
1968 (env->cfg, "transport-bluetooth", "INTERFACE",
1969 &interface))
1970 {
1971 GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
1972 "transport-bluetooth", "INTERFACE");
1973 return NULL;
1974 }
1975
1976 plugin = GNUNET_new (struct Plugin);
1977 plugin->interface = interface;
1978 plugin->env = env;
1979 GNUNET_STATISTICS_set (plugin->env->stats, _("# Bluetooth sessions allocated"),
1980 0, GNUNET_NO);
1981 GNUNET_STATISTICS_set (plugin->env->stats, _("# Bluetooth MAC endpoints allocated"),
1982 0, 0);
1983 GNUNET_BANDWIDTH_tracker_init (&plugin->tracker, NULL, NULL,
1984 GNUNET_BANDWIDTH_value_init (100 * 1024 *
1985 1024 / 8), 100);
1986 plugin->fragment_data_tokenizer = GNUNET_SERVER_mst_create (&process_data, plugin);
1987 plugin->wlan_header_payload_tokenizer = GNUNET_SERVER_mst_create (&process_data, plugin);
1988 plugin->helper_payload_tokenizer = GNUNET_SERVER_mst_create (&process_data, plugin);
1989 plugin->beacon_task = GNUNET_SCHEDULER_add_now (&send_hello_beacon,
1990 plugin);
1991
1992 plugin->options = 0;
1993
1994 /* some compilers do not like switch on 'long long'... */
1995 switch ((unsigned int) testmode)
1996 {
1997 case 0: /* normal */
1998 plugin->helper_argv[0] = (char *) "gnunet-helper-transport-bluetooth";
1999 plugin->helper_argv[1] = interface;
2000 plugin->helper_argv[2] = NULL;
2001 plugin->suid_helper = GNUNET_HELPER_start (GNUNET_NO,
2002 "gnunet-helper-transport-bluetooth",
2003 plugin->helper_argv,
2004 &handle_helper_message,
2005 NULL,
2006 plugin);
2007 break;
2008 case 1: /* testmode, peer 1 */
2009 plugin->helper_argv[0] = (char *) "gnunet-helper-transport-wlan-dummy";
2010 plugin->helper_argv[1] = (char *) "1";
2011 plugin->helper_argv[2] = NULL;
2012 plugin->suid_helper = GNUNET_HELPER_start (GNUNET_NO,
2013 "gnunet-helper-transport-wlan-dummy",
2014 plugin->helper_argv,
2015 &handle_helper_message,
2016 NULL,
2017 plugin);
2018 break;
2019 case 2: /* testmode, peer 2 */
2020 plugin->helper_argv[0] = (char *) "gnunet-helper-transport-wlan-dummy";
2021 plugin->helper_argv[1] = (char *) "2";
2022 plugin->helper_argv[2] = NULL;
2023 plugin->suid_helper = GNUNET_HELPER_start (GNUNET_NO,
2024 "gnunet-helper-transport-wlan-dummy",
2025 plugin->helper_argv,
2026 &handle_helper_message,
2027 NULL,
2028 plugin);
2029 break;
2030 default:
2031 GNUNET_assert (0);
2032 }
2033
2034 api = GNUNET_new (struct GNUNET_TRANSPORT_PluginFunctions);
2035 api->cls = plugin;
2036 api->send = &bluetooth_plugin_send;
2037 api->get_session = &bluetooth_plugin_get_session;
2038 api->disconnect_peer = &bluetooth_plugin_disconnect_peer;
2039 api->disconnect_session = &bluetooth_plugin_disconnect_session;
2040 api->query_keepalive_factor = &bluetooth_query_keepalive_factor;
2041 api->address_pretty_printer = &bluetooth_plugin_address_pretty_printer;
2042 api->check_address = &bluetooth_plugin_address_suggested;
2043 api->address_to_string = &bluetooth_plugin_address_to_string;;
2044 api->string_to_address = &bluetooth_string_to_address;
2045 api->get_network = &bluetooth_get_network;
2046 api->update_session_timeout = &bluetooth_plugin_update_session_timeout;
2047
2048 return api;
2049}
2050
2051
2052/* end of plugin_transport_bluetooth.c */
diff --git a/src/transport/plugin_transport_wlan.c b/src/transport/plugin_transport_wlan.c
index a42f1a940..32c43a3aa 100644
--- a/src/transport/plugin_transport_wlan.c
+++ b/src/transport/plugin_transport_wlan.c
@@ -1,6 +1,6 @@
1/* 1/*
2 This file is part of GNUnet 2 This file is part of GNUnet
3 (C) 2010, 2011, 2012 Christian Grothoff (and other contributing authors) 3 (C) 2010-2014 Christian Grothoff (and other contributing authors)
4 4
5 GNUnet is free software; you can redistribute it and/or modify 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 6 it under the terms of the GNU General Public License as published
@@ -20,43 +20,84 @@
20 20
21/** 21/**
22 * @file transport/plugin_transport_wlan.c 22 * @file transport/plugin_transport_wlan.c
23 * @brief transport plugin for wlan 23 * @brief transport plugin for wlan and/or bluetooth
24 * @author David Brodski 24 * @author David Brodski
25 * @author Christian Grothoff 25 * @author Christian Grothoff
26 *
27 * BUILD_WLAN or BUILD_BLUETOOTH must be defined such that the respective
28 * variant of this code is compiled.
26 */ 29 */
27#include "platform.h" 30#include "platform.h"
31#include "gnunet_util_lib.h"
28#include "gnunet_hello_lib.h" 32#include "gnunet_hello_lib.h"
29#include "gnunet_protocols.h" 33#include "gnunet_protocols.h"
30#include "gnunet_util_lib.h"
31#include "gnunet_statistics_service.h" 34#include "gnunet_statistics_service.h"
32#include "gnunet_transport_service.h" 35#include "gnunet_transport_service.h"
33#include "gnunet_transport_plugin.h" 36#include "gnunet_transport_plugin.h"
34#include "plugin_transport_wlan.h" 37#include "plugin_transport_wlan.h"
35#include "gnunet_common.h"
36#include "gnunet_crypto_lib.h"
37#include "gnunet_fragmentation_lib.h" 38#include "gnunet_fragmentation_lib.h"
38#include "gnunet_constants.h" 39#include "gnunet_constants.h"
39 40
41#if BUILD_WLAN
42/* begin case wlan */
43#define PLUGIN_NAME "wlan"
44#define CONFIG_NAME "transport-wlan"
45#define HELPER_NAME "gnunet-helper-transport-wlan"
46#define DUMMY_HELPER_NAME "gnunet-helper-transport-wlan-dummy"
47#define LIBGNUNET_PLUGIN_TRANSPORT_INIT libgnunet_plugin_transport_wlan_init
48#define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_wlan_done
40#define LOG(kind,...) GNUNET_log_from (kind, "transport-wlan",__VA_ARGS__) 49#define LOG(kind,...) GNUNET_log_from (kind, "transport-wlan",__VA_ARGS__)
41 50
42#define PLUGIN_NAME "wlan" 51/**
52 * time out of a mac endpoint
53 */
54#define MACENDPOINT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, 2)
43 55
44/** 56/**
45 * Max size of packet (that we give to the WLAN driver for transmission) 57 * We reduce the frequence of HELLO beacons in relation to
58 * the number of MAC addresses currently visible to us.
59 * This is the multiplication factor.
46 */ 60 */
47#define WLAN_MTU 1430 61#define HELLO_BEACON_SCALING_FACTOR GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2)
62
63
64/* end case wlan */
65#elif BUILD_BLUETOOTH
66/* begin case bluetooth */
67
68#define PLUGIN_NAME "bluetooth"
69#define CONFIG_NAME "transport-bluetooth"
70#define HELPER_NAME "gnunet-helper-transport-bluetooth"
71/* yes, this is correct, we use the same dummy driver as 'wlan' */
72#define DUMMY_HELPER_NAME "gnunet-helper-transport-wlan-dummy"
73#define LIBGNUNET_PLUGIN_TRANSPORT_INIT libgnunet_plugin_transport_bluetooth_init
74#define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_bluetooth_done
75#define LOG(kind,...) GNUNET_log_from (kind, "transport-bluetooth",__VA_ARGS__)
48 76
49/** 77/**
50 * time out of a mac endpoint 78 * time out of a mac endpoint
51 */ 79 */
52#define MACENDPOINT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, 2) 80#define MACENDPOINT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, 60)
81
53 82
54/** 83/**
55 * We reduce the frequence of HELLO beacons in relation to 84 * We reduce the frequence of HELLO beacons in relation to
56 * the number of MAC addresses currently visible to us. 85 * the number of MAC addresses currently visible to us.
57 * This is the multiplication factor. 86 * This is the multiplication factor.
58 */ 87 */
59#define HELLO_BEACON_SCALING_FACTOR GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2) 88#define HELLO_BEACON_SCALING_FACTOR GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60)
89
90/* end case bluetooth */
91#else
92#error need to build wlan or bluetooth
93#endif
94
95/**
96 * Max size of packet (that we give to the WLAN driver for transmission)
97 */
98#define WLAN_MTU 1430
99
100
60 101
61/** 102/**
62 * Maximum number of messages in defragmentation queue per MAC 103 * Maximum number of messages in defragmentation queue per MAC
@@ -661,7 +702,6 @@ send_ack (void *cls, uint32_t msg_id,
661 GNUNET_break (0); 702 GNUNET_break (0);
662 return; 703 return;
663 } 704 }
664
665 if (size >= GNUNET_SERVER_MAX_MESSAGE_SIZE) 705 if (size >= GNUNET_SERVER_MAX_MESSAGE_SIZE)
666 { 706 {
667 GNUNET_break (0); 707 GNUNET_break (0);
@@ -682,7 +722,7 @@ send_ack (void *cls, uint32_t msg_id,
682 GNUNET_NO /* dropping ACKs is bad */, 722 GNUNET_NO /* dropping ACKs is bad */,
683 NULL, NULL)) 723 NULL, NULL))
684 GNUNET_STATISTICS_update (endpoint->plugin->env->stats, 724 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
685 _("# WLAN ACKs sent"), 725 _("# ACKs sent"),
686 1, GNUNET_NO); 726 1, GNUNET_NO);
687} 727}
688 728
@@ -702,7 +742,7 @@ wlan_data_message_handler (void *cls,
702 struct MacAndSession mas; 742 struct MacAndSession mas;
703 743
704 GNUNET_STATISTICS_update (plugin->env->stats, 744 GNUNET_STATISTICS_update (plugin->env->stats,
705 _("# WLAN messages defragmented"), 745 _("# Messages defragmented"),
706 1, 746 1,
707 GNUNET_NO); 747 GNUNET_NO);
708 mas.session = NULL; 748 mas.session = NULL;
@@ -743,7 +783,7 @@ wlan_plugin_disconnect_session (void *cls,
743 session->timeout_task = GNUNET_SCHEDULER_NO_TASK; 783 session->timeout_task = GNUNET_SCHEDULER_NO_TASK;
744 } 784 }
745 GNUNET_STATISTICS_update (plugin->env->stats, 785 GNUNET_STATISTICS_update (plugin->env->stats,
746 _("# WLAN sessions allocated"), 786 _("# Sessions allocated"),
747 -1, 787 -1,
748 GNUNET_NO); 788 GNUNET_NO);
749 GNUNET_HELLO_address_free (session->address); 789 GNUNET_HELLO_address_free (session->address);
@@ -771,7 +811,7 @@ wlan_plugin_query_keepalive_factor (void *cls)
771 * A session is timing out. Clean up. 811 * A session is timing out. Clean up.
772 * 812 *
773 * @param cls pointer to the Session 813 * @param cls pointer to the Session
774 * @param tc pointer to the GNUNET_SCHEDULER_TaskContext 814 * @param tc unused
775 */ 815 */
776static void 816static void
777session_timeout (void *cls, 817session_timeout (void *cls,
@@ -830,7 +870,7 @@ create_session (struct MacEndpoint *endpoint,
830 struct Session *session; 870 struct Session *session;
831 871
832 GNUNET_STATISTICS_update (endpoint->plugin->env->stats, 872 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
833 _("# WLAN sessions allocated"), 873 _("# Sessions allocated"),
834 1, 874 1,
835 GNUNET_NO); 875 GNUNET_NO);
836 session = GNUNET_new (struct Session); 876 session = GNUNET_new (struct Session);
@@ -848,7 +888,7 @@ create_session (struct MacEndpoint *endpoint,
848 session->timeout_task = 888 session->timeout_task =
849 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, &session_timeout, 889 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, &session_timeout,
850 session); 890 session);
851 notify_session_monitor (plugin, 891 notify_session_monitor (endpoint->plugin,
852 session, 892 session,
853 GNUNET_TRANSPORT_SS_UP); 893 GNUNET_TRANSPORT_SS_UP);
854 LOG (GNUNET_ERROR_TYPE_DEBUG, 894 LOG (GNUNET_ERROR_TYPE_DEBUG,
@@ -919,10 +959,9 @@ transmit_fragment (void *cls,
919 959
920 if (NULL == endpoint) 960 if (NULL == endpoint)
921 { 961 {
922 GNUNET_break (0); 962 GNUNET_break (0);
923 return; 963 return;
924 } 964 }
925
926 msize = ntohs (hdr->size); 965 msize = ntohs (hdr->size);
927 size = sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage) + msize; 966 size = sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapSendMessage) + msize;
928 { 967 {
@@ -944,16 +983,16 @@ transmit_fragment (void *cls,
944 fm->size_on_wire += size; 983 fm->size_on_wire += size;
945 if (NULL != fm->sh) 984 if (NULL != fm->sh)
946 GNUNET_STATISTICS_update (endpoint->plugin->env->stats, 985 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
947 _("# WLAN message fragments sent"), 986 _("# message fragments sent"),
948 1, 987 1,
949 GNUNET_NO); 988 GNUNET_NO);
950 else 989 else
951 GNUNET_FRAGMENT_context_transmission_done (fm->fragcontext); 990 GNUNET_FRAGMENT_context_transmission_done (fm->fragcontext);
952 GNUNET_STATISTICS_update (endpoint->plugin->env->stats, 991 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
953 "# bytes currently in WLAN buffers", 992 "# bytes currently in buffers",
954 -msize, GNUNET_NO); 993 -msize, GNUNET_NO);
955 GNUNET_STATISTICS_update (endpoint->plugin->env->stats, 994 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
956 "# bytes transmitted via WLAN", 995 "# bytes transmitted",
957 msize, GNUNET_NO); 996 msize, GNUNET_NO);
958 } 997 }
959} 998}
@@ -970,7 +1009,7 @@ free_fragment_message (struct FragmentMessage *fm)
970 struct MacEndpoint *endpoint = fm->macendpoint; 1009 struct MacEndpoint *endpoint = fm->macendpoint;
971 1010
972 GNUNET_STATISTICS_update (endpoint->plugin->env->stats, 1011 GNUNET_STATISTICS_update (endpoint->plugin->env->stats,
973 _("# WLAN messages pending (with fragmentation)"), 1012 _("# messages pending (with fragmentation)"),
974 -1, GNUNET_NO); 1013 -1, GNUNET_NO);
975 GNUNET_CONTAINER_DLL_remove (endpoint->sending_messages_head, 1014 GNUNET_CONTAINER_DLL_remove (endpoint->sending_messages_head,
976 endpoint->sending_messages_tail, 1015 endpoint->sending_messages_tail,
@@ -1050,7 +1089,6 @@ send_with_fragmentation (struct MacEndpoint *endpoint,
1050 fm->macendpoint = endpoint; 1089 fm->macendpoint = endpoint;
1051 fm->target = *target; 1090 fm->target = *target;
1052 fm->size_payload = payload_size; 1091 fm->size_payload = payload_size;
1053 fm->size_on_wire = 0;
1054 fm->timeout = GNUNET_TIME_relative_to_absolute (timeout); 1092 fm->timeout = GNUNET_TIME_relative_to_absolute (timeout);
1055 fm->cont = cont; 1093 fm->cont = cont;
1056 fm->cont_cls = cont_cls; 1094 fm->cont_cls = cont_cls;
@@ -1085,7 +1123,7 @@ free_macendpoint (struct MacEndpoint *endpoint)
1085 struct Session *session; 1123 struct Session *session;
1086 1124
1087 GNUNET_STATISTICS_update (plugin->env->stats, 1125 GNUNET_STATISTICS_update (plugin->env->stats,
1088 _("# WLAN MAC endpoints allocated"), 1126 _("# MAC endpoints allocated"),
1089 -1, 1127 -1,
1090 GNUNET_NO); 1128 GNUNET_NO);
1091 while (NULL != (session = endpoint->sessions_head)) 1129 while (NULL != (session = endpoint->sessions_head))
@@ -1154,16 +1192,8 @@ create_macendpoint (struct Plugin *plugin,
1154 struct MacEndpoint *pos; 1192 struct MacEndpoint *pos;
1155 1193
1156 for (pos = plugin->mac_head; NULL != pos; pos = pos->next) 1194 for (pos = plugin->mac_head; NULL != pos; pos = pos->next)
1157 {
1158 if (0 == memcmp (mac, &pos->wlan_addr, sizeof (pos->wlan_addr))) 1195 if (0 == memcmp (mac, &pos->wlan_addr, sizeof (pos->wlan_addr)))
1159 {
1160 LOG (GNUNET_ERROR_TYPE_DEBUG, "Found existing MAC endpoint `%s'\n",
1161 wlan_plugin_address_to_string (NULL,
1162 &pos->wlan_addr.mac,
1163 sizeof (pos->wlan_addr)));
1164 return pos; 1196 return pos;
1165 }
1166 }
1167 pos = GNUNET_new (struct MacEndpoint); 1197 pos = GNUNET_new (struct MacEndpoint);
1168 pos->wlan_addr = (*mac); 1198 pos->wlan_addr = (*mac);
1169 pos->plugin = plugin; 1199 pos->plugin = plugin;
@@ -1186,7 +1216,7 @@ create_macendpoint (struct Plugin *plugin,
1186 pos); 1216 pos);
1187 plugin->mac_count++; 1217 plugin->mac_count++;
1188 GNUNET_STATISTICS_update (plugin->env->stats, 1218 GNUNET_STATISTICS_update (plugin->env->stats,
1189 _("# WLAN MAC endpoints allocated"), 1219 _("# MAC endpoints allocated"),
1190 1, GNUNET_NO); 1220 1, GNUNET_NO);
1191 LOG (GNUNET_ERROR_TYPE_DEBUG, 1221 LOG (GNUNET_ERROR_TYPE_DEBUG,
1192 "New MAC endpoint `%s'\n", 1222 "New MAC endpoint `%s'\n",
@@ -1208,7 +1238,11 @@ static enum GNUNET_ATS_Network_Type
1208wlan_plugin_get_network (void *cls, 1238wlan_plugin_get_network (void *cls,
1209 struct Session *session) 1239 struct Session *session)
1210{ 1240{
1241#if BUILD_WLAN
1211 return GNUNET_ATS_NET_WLAN; 1242 return GNUNET_ATS_NET_WLAN;
1243#else
1244 return GNUNET_ATS_NET_BT;
1245#endif
1212} 1246}
1213 1247
1214 1248
@@ -1240,7 +1274,8 @@ wlan_plugin_get_session (void *cls,
1240 wlan_plugin_address_to_string (NULL, 1274 wlan_plugin_address_to_string (NULL,
1241 address->address, 1275 address->address,
1242 address->address_length)); 1276 address->address_length));
1243 endpoint = create_macendpoint (plugin, (struct WlanAddress *) address->address); 1277 endpoint = create_macendpoint (plugin,
1278 (struct WlanAddress *) address->address);
1244 return get_session (endpoint, &address->peer); 1279 return get_session (endpoint, &address->peer);
1245} 1280}
1246 1281
@@ -1327,8 +1362,9 @@ wlan_plugin_send (void *cls,
1327 memcpy (&wlanheader[1], msgbuf, msgbuf_size); 1362 memcpy (&wlanheader[1], msgbuf, msgbuf_size);
1328 1363
1329 GNUNET_STATISTICS_update (plugin->env->stats, 1364 GNUNET_STATISTICS_update (plugin->env->stats,
1330 "# bytes currently in WLAN buffers", 1365 "# bytes currently in buffers",
1331 msgbuf_size, GNUNET_NO); 1366 msgbuf_size,
1367 GNUNET_NO);
1332 1368
1333 send_with_fragmentation (session->mac, 1369 send_with_fragmentation (session->mac,
1334 to, 1370 to,
@@ -1365,11 +1401,15 @@ process_data (void *cls,
1365 uint16_t msize; 1401 uint16_t msize;
1366 1402
1367 ats.type = htonl (GNUNET_ATS_NETWORK_TYPE); 1403 ats.type = htonl (GNUNET_ATS_NETWORK_TYPE);
1404#if BUILD_WLAN
1368 ats.value = htonl (GNUNET_ATS_NET_WLAN); 1405 ats.value = htonl (GNUNET_ATS_NET_WLAN);
1406#else
1407 ats.value = htonl (GNUNET_ATS_NET_BT);
1408#endif
1369 msize = ntohs (hdr->size); 1409 msize = ntohs (hdr->size);
1370 1410
1371 GNUNET_STATISTICS_update (plugin->env->stats, 1411 GNUNET_STATISTICS_update (plugin->env->stats,
1372 "# bytes received via WLAN", 1412 "# bytes received",
1373 msize, GNUNET_NO); 1413 msize, GNUNET_NO);
1374 1414
1375 switch (ntohs (hdr->type)) 1415 switch (ntohs (hdr->type))
@@ -1398,7 +1438,7 @@ process_data (void *cls,
1398 sizeof (mas->endpoint->wlan_addr))); 1438 sizeof (mas->endpoint->wlan_addr)));
1399 1439
1400 GNUNET_STATISTICS_update (plugin->env->stats, 1440 GNUNET_STATISTICS_update (plugin->env->stats,
1401 _("# HELLO messages received via WLAN"), 1, 1441 _("# HELLO messages received"), 1,
1402 GNUNET_NO); 1442 GNUNET_NO);
1403 address = GNUNET_HELLO_address_allocate (&tmpsource, 1443 address = GNUNET_HELLO_address_allocate (&tmpsource,
1404 PLUGIN_NAME, 1444 PLUGIN_NAME,
@@ -1428,7 +1468,7 @@ process_data (void *cls,
1428 &mas->endpoint->wlan_addr, 1468 &mas->endpoint->wlan_addr,
1429 sizeof (mas->endpoint->wlan_addr))); 1469 sizeof (mas->endpoint->wlan_addr)));
1430 GNUNET_STATISTICS_update (plugin->env->stats, 1470 GNUNET_STATISTICS_update (plugin->env->stats,
1431 _("# fragments received via WLAN"), 1471 _("# fragments received"),
1432 1, 1472 1,
1433 GNUNET_NO); 1473 GNUNET_NO);
1434 (void) GNUNET_DEFRAGMENT_process_fragment (mas->endpoint->defrag, 1474 (void) GNUNET_DEFRAGMENT_process_fragment (mas->endpoint->defrag,
@@ -1441,7 +1481,7 @@ process_data (void *cls,
1441 break; 1481 break;
1442 } 1482 }
1443 GNUNET_STATISTICS_update (plugin->env->stats, 1483 GNUNET_STATISTICS_update (plugin->env->stats,
1444 _("# ACKs received via WLAN"), 1484 _("# ACKs received"),
1445 1, GNUNET_NO); 1485 1, GNUNET_NO);
1446 for (fm = mas->endpoint->sending_messages_head; NULL != fm; fm = fm->next) 1486 for (fm = mas->endpoint->sending_messages_head; NULL != fm; fm = fm->next)
1447 { 1487 {
@@ -1500,7 +1540,7 @@ process_data (void *cls,
1500 sizeof (struct GNUNET_PeerIdentity))) 1540 sizeof (struct GNUNET_PeerIdentity)))
1501 { 1541 {
1502 LOG (GNUNET_ERROR_TYPE_DEBUG, 1542 LOG (GNUNET_ERROR_TYPE_DEBUG,
1503 "WLAN data for `%s', not for me, ignoring\n", 1543 "Data for `%s', not for me, ignoring\n",
1504 GNUNET_i2s (&wlanheader->target)); 1544 GNUNET_i2s (&wlanheader->target));
1505 break; 1545 break;
1506 } 1546 }
@@ -1509,7 +1549,7 @@ process_data (void *cls,
1509 msize - sizeof (struct WlanHeader))) 1549 msize - sizeof (struct WlanHeader)))
1510 { 1550 {
1511 GNUNET_STATISTICS_update (plugin->env->stats, 1551 GNUNET_STATISTICS_update (plugin->env->stats,
1512 _("# WLAN DATA messages discarded due to CRC32 error"), 1552 _("# DATA messages discarded due to CRC32 error"),
1513 1, 1553 1,
1514 GNUNET_NO); 1554 GNUNET_NO);
1515 break; 1555 break;
@@ -1536,7 +1576,7 @@ process_data (void *cls,
1536 GNUNET_HELLO_address_free (address); 1576 GNUNET_HELLO_address_free (address);
1537 } 1577 }
1538 LOG (GNUNET_ERROR_TYPE_DEBUG, 1578 LOG (GNUNET_ERROR_TYPE_DEBUG,
1539 "Processing %u bytes of WLAN DATA from peer `%s'\n", 1579 "Processing %u bytes of DATA from peer `%s'\n",
1540 (unsigned int) msize, 1580 (unsigned int) msize,
1541 GNUNET_i2s (&wlanheader->sender)); 1581 GNUNET_i2s (&wlanheader->sender));
1542 xmas.session->timeout = GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT); 1582 xmas.session->timeout = GNUNET_TIME_relative_to_absolute (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
@@ -1650,7 +1690,7 @@ handle_helper_message (void *cls, void *client,
1650 "Got data message from helper with %u bytes\n", 1690 "Got data message from helper with %u bytes\n",
1651 msize); 1691 msize);
1652 GNUNET_STATISTICS_update (plugin->env->stats, 1692 GNUNET_STATISTICS_update (plugin->env->stats,
1653 _("# DATA messages received via WLAN"), 1, 1693 _("# DATA messages received"), 1,
1654 GNUNET_NO); 1694 GNUNET_NO);
1655 if (msize < sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapReceiveMessage)) 1695 if (msize < sizeof (struct GNUNET_TRANSPORT_WLAN_RadiotapReceiveMessage))
1656 { 1696 {
@@ -1685,7 +1725,7 @@ handle_helper_message (void *cls, void *client,
1685 } 1725 }
1686 1726
1687 GNUNET_STATISTICS_update (plugin->env->stats, 1727 GNUNET_STATISTICS_update (plugin->env->stats,
1688 _("# WLAN DATA messages processed"), 1728 _("# DATA messages processed"),
1689 1, GNUNET_NO); 1729 1, GNUNET_NO);
1690 LOG (GNUNET_ERROR_TYPE_DEBUG, 1730 LOG (GNUNET_ERROR_TYPE_DEBUG,
1691 "Receiving %u bytes of data from MAC `%s'\n", 1731 "Receiving %u bytes of data from MAC `%s'\n",
@@ -1748,7 +1788,7 @@ send_hello_beacon (void *cls,
1748 GNUNET_YES /* can drop */, 1788 GNUNET_YES /* can drop */,
1749 NULL, NULL)) 1789 NULL, NULL))
1750 GNUNET_STATISTICS_update (plugin->env->stats, 1790 GNUNET_STATISTICS_update (plugin->env->stats,
1751 _("# HELLO beacons sent via WLAN"), 1791 _("# HELLO beacons sent"),
1752 1, GNUNET_NO); 1792 1, GNUNET_NO);
1753 } 1793 }
1754 plugin->beacon_task = 1794 plugin->beacon_task =
@@ -1850,7 +1890,7 @@ wlan_plugin_address_pretty_printer (void *cls,
1850 * @param cls pointer to the api struct 1890 * @param cls pointer to the api struct
1851 */ 1891 */
1852void * 1892void *
1853libgnunet_plugin_transport_wlan_done (void *cls) 1893LIBGNUNET_PLUGIN_TRANSPORT_DONE (void *cls)
1854{ 1894{
1855 struct WlanAddress wa; 1895 struct WlanAddress wa;
1856 struct GNUNET_HELLO_Address *address; 1896 struct GNUNET_HELLO_Address *address;
@@ -1864,7 +1904,6 @@ libgnunet_plugin_transport_wlan_done (void *cls)
1864 GNUNET_free (api); 1904 GNUNET_free (api);
1865 return NULL; 1905 return NULL;
1866 } 1906 }
1867
1868 if (GNUNET_YES == plugin->have_mac) 1907 if (GNUNET_YES == plugin->have_mac)
1869 { 1908 {
1870 memset (&wa, 0, sizeof(wa)); 1909 memset (&wa, 0, sizeof(wa));
@@ -2063,7 +2102,7 @@ wlan_plugin_update_inbound_delay (void *cls,
2063 * @return the `struct GNUNET_TRANSPORT_PluginFunctions *` or NULL on error 2102 * @return the `struct GNUNET_TRANSPORT_PluginFunctions *` or NULL on error
2064 */ 2103 */
2065void * 2104void *
2066libgnunet_plugin_transport_wlan_init (void *cls) 2105LIBGNUNET_PLUGIN_TRANSPORT_INIT (void *cls)
2067{ 2106{
2068 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls; 2107 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
2069 struct GNUNET_TRANSPORT_PluginFunctions *api; 2108 struct GNUNET_TRANSPORT_PluginFunctions *api;
@@ -2088,36 +2127,44 @@ libgnunet_plugin_transport_wlan_init (void *cls)
2088 testmode = 0; 2127 testmode = 0;
2089 /* check configuration */ 2128 /* check configuration */
2090 if ( (GNUNET_YES == 2129 if ( (GNUNET_YES ==
2091 GNUNET_CONFIGURATION_have_value (env->cfg, "transport-wlan", "TESTMODE")) && 2130 GNUNET_CONFIGURATION_have_value (env->cfg,
2131 CONFIG_NAME,
2132 "TESTMODE")) &&
2092 ( (GNUNET_SYSERR == 2133 ( (GNUNET_SYSERR ==
2093 GNUNET_CONFIGURATION_get_value_number (env->cfg, "transport-wlan", 2134 GNUNET_CONFIGURATION_get_value_number (env->cfg,
2094 "TESTMODE", &testmode)) || 2135 CONFIG_NAME,
2136 "TESTMODE",
2137 &testmode)) ||
2095 (testmode > 2) ) ) 2138 (testmode > 2) ) )
2096 { 2139 {
2097 GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, 2140 GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
2098 "transport-wlan", "TESTMODE"); 2141 CONFIG_NAME,
2142 "TESTMODE");
2099 return NULL; 2143 return NULL;
2100 } 2144 }
2101 binary = GNUNET_OS_get_libexec_binary_path ("gnunet-helper-transport-wlan"); 2145 binary = GNUNET_OS_get_libexec_binary_path (HELPER_NAME);
2102 if ( (0 == testmode) && 2146 if ( (0 == testmode) &&
2103 (GNUNET_YES != 2147 (GNUNET_YES !=
2104 GNUNET_OS_check_helper_binary (binary, GNUNET_YES, NULL)) ) 2148 GNUNET_OS_check_helper_binary (binary,
2149 GNUNET_YES,
2150 NULL)) )
2105 { 2151 {
2106 LOG (GNUNET_ERROR_TYPE_ERROR, 2152 LOG (GNUNET_ERROR_TYPE_ERROR,
2107 _("Helper binary `%s' not SUID, cannot run WLAN transport\n"), 2153 _("Helper binary `%s' not SUID, cannot run WLAN transport\n"),
2108 "gnunet-helper-transport-wlan"); 2154 HELPER_NAME);
2109 GNUNET_free (binary); 2155 GNUNET_free (binary);
2110 return NULL; 2156 return NULL;
2111 } 2157 }
2112 GNUNET_free (binary); 2158 GNUNET_free (binary);
2113 if (GNUNET_YES != 2159 if (GNUNET_YES !=
2114 GNUNET_CONFIGURATION_get_value_string (env->cfg, 2160 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2115 "transport-wlan", 2161 CONFIG_NAME,
2116 "INTERFACE", 2162 "INTERFACE",
2117 &interface)) 2163 &interface))
2118 { 2164 {
2119 GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, 2165 GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
2120 "transport-wlan", "INTERFACE"); 2166 CONFIG_NAME,
2167 "INTERFACE");
2121 return NULL; 2168 return NULL;
2122 } 2169 }
2123 2170
@@ -2125,10 +2172,10 @@ libgnunet_plugin_transport_wlan_init (void *cls)
2125 plugin->interface = interface; 2172 plugin->interface = interface;
2126 plugin->env = env; 2173 plugin->env = env;
2127 GNUNET_STATISTICS_set (plugin->env->stats, 2174 GNUNET_STATISTICS_set (plugin->env->stats,
2128 _("# WLAN sessions allocated"), 2175 _("# sessions allocated"),
2129 0, GNUNET_NO); 2176 0, GNUNET_NO);
2130 GNUNET_STATISTICS_set (plugin->env->stats, 2177 GNUNET_STATISTICS_set (plugin->env->stats,
2131 _("# WLAN MAC endpoints allocated"), 2178 _("# MAC endpoints allocated"),
2132 0, 0); 2179 0, 0);
2133 GNUNET_BANDWIDTH_tracker_init (&plugin->tracker, NULL, NULL, 2180 GNUNET_BANDWIDTH_tracker_init (&plugin->tracker, NULL, NULL,
2134 GNUNET_BANDWIDTH_value_init (100 * 1024 * 2181 GNUNET_BANDWIDTH_value_init (100 * 1024 *
@@ -2146,33 +2193,33 @@ libgnunet_plugin_transport_wlan_init (void *cls)
2146 switch ((unsigned int) testmode) 2193 switch ((unsigned int) testmode)
2147 { 2194 {
2148 case 0: /* normal */ 2195 case 0: /* normal */
2149 plugin->helper_argv[0] = (char *) "gnunet-helper-transport-wlan"; 2196 plugin->helper_argv[0] = (char *) HELPER_NAME;
2150 plugin->helper_argv[1] = interface; 2197 plugin->helper_argv[1] = interface;
2151 plugin->helper_argv[2] = NULL; 2198 plugin->helper_argv[2] = NULL;
2152 plugin->suid_helper = GNUNET_HELPER_start (GNUNET_NO, 2199 plugin->suid_helper = GNUNET_HELPER_start (GNUNET_NO,
2153 "gnunet-helper-transport-wlan", 2200 HELPER_NAME,
2154 plugin->helper_argv, 2201 plugin->helper_argv,
2155 &handle_helper_message, 2202 &handle_helper_message,
2156 NULL, 2203 NULL,
2157 plugin); 2204 plugin);
2158 break; 2205 break;
2159 case 1: /* testmode, peer 1 */ 2206 case 1: /* testmode, peer 1 */
2160 plugin->helper_argv[0] = (char *) "gnunet-helper-transport-wlan-dummy"; 2207 plugin->helper_argv[0] = (char *) DUMMY_HELPER_NAME;
2161 plugin->helper_argv[1] = (char *) "1"; 2208 plugin->helper_argv[1] = (char *) "1";
2162 plugin->helper_argv[2] = NULL; 2209 plugin->helper_argv[2] = NULL;
2163 plugin->suid_helper = GNUNET_HELPER_start (GNUNET_NO, 2210 plugin->suid_helper = GNUNET_HELPER_start (GNUNET_NO,
2164 "gnunet-helper-transport-wlan-dummy", 2211 DUMMY_HELPER_NAME,
2165 plugin->helper_argv, 2212 plugin->helper_argv,
2166 &handle_helper_message, 2213 &handle_helper_message,
2167 NULL, 2214 NULL,
2168 plugin); 2215 plugin);
2169 break; 2216 break;
2170 case 2: /* testmode, peer 2 */ 2217 case 2: /* testmode, peer 2 */
2171 plugin->helper_argv[0] = (char *) "gnunet-helper-transport-wlan-dummy"; 2218 plugin->helper_argv[0] = (char *) DUMMY_HELPER_NAME;
2172 plugin->helper_argv[1] = (char *) "2"; 2219 plugin->helper_argv[1] = (char *) "2";
2173 plugin->helper_argv[2] = NULL; 2220 plugin->helper_argv[2] = NULL;
2174 plugin->suid_helper = GNUNET_HELPER_start (GNUNET_NO, 2221 plugin->suid_helper = GNUNET_HELPER_start (GNUNET_NO,
2175 "gnunet-helper-transport-wlan-dummy", 2222 DUMMY_HELPER_NAME,
2176 plugin->helper_argv, 2223 plugin->helper_argv,
2177 &handle_helper_message, 2224 &handle_helper_message,
2178 NULL, 2225 NULL,
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-19 15:10:49 +0000