source: source/ariba/utility/bootstrap/modules/bluetoothsdp/BluetoothSdp.cpp@ 5317

Last change on this file since 5317 was 5316, checked in by Christoph Mayer, 15 years ago

merge from bootstrap branch
File size: 11.3 KB
Line 
1// [License]
2// The Ariba-Underlay Copyright
3//
4// Copyright (c) 2008-2009, Institute of Telematics, UniversitÀt Karlsruhe (TH)
5//
6// Institute of Telematics
7// UniversitÀt Karlsruhe (TH)
8// Zirkel 2, 76128 Karlsruhe
9// Germany
10//
11// Redistribution and use in source and binary forms, with or without
12// modification, are permitted provided that the following conditions are
13// met:
14//
15// 1. Redistributions of source code must retain the above copyright
16// notice, this list of conditions and the following disclaimer.
17// 2. Redistributions in binary form must reproduce the above copyright
18// notice, this list of conditions and the following disclaimer in the
19// documentation and/or other materials provided with the distribution.
20//
21// THIS SOFTWARE IS PROVIDED BY THE INSTITUTE OF TELEMATICS ``AS IS'' AND
22// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ARIBA PROJECT OR
25// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
28// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32//
33// The views and conclusions contained in the software and documentation
34// are those of the authors and should not be interpreted as representing
35// official policies, either expressed or implied, of the Institute of
36// Telematics.
37// [License]
38
39#include "BluetoothSdp.h"
40
41#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
42
43 // Attribute descriptors for SDP
44 // base was chosen randomly
45 #define SDP_SPOVNET_BASE 0x4000
46 #define SDP_ATTR_SPOVNET_NAME 0x0000 + SDP_SPOVNET_BASE
47 #define SDP_ATTR_SPOVNET_INFO1 0x0001 + SDP_SPOVNET_BASE
48 #define SDP_ATTR_SPOVNET_INFO2 0x0002 + SDP_SPOVNET_BASE
49 #define SDP_ATTR_SPOVNET_INFO3 0x0003 + SDP_SPOVNET_BASE
50
51 // The SpoVNet unique identifier, this should be the same for all SpoVNet implementations
52 const uint8_t svc_uuid_int[] = {0x59, 0x29, 0x24, 0x34, 0x69, 0x42, 0x11, 0xde, 0x94,
53 0x3e, 0x00, 0x21, 0x5d, 0xb4, 0xd8, 0x54};
54
55 const char *service_name = "SpoVNet";
56 const char *svc_dsc = "www.ariba-underlay.org";
57 const char *service_prov = "ITM Uni Karlsruhe";
58
59#endif // HAVE_BLUETOOTH_BLUETOOTH_H
60
61
62namespace ariba {
63namespace utility {
64use_logging_cpp(BluetoothSdp);
65
66BluetoothSdp::BluetoothSdp(BootstrapInformationCallback* _callback) :
67 BootstrapModule(_callback), scan_timer_(io_service_) {
68 srand( time(NULL) );
69#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
70
71 // This can be ignored, as the channel we really be saved in one
72 // of the info strings (as an attribute)
73 channel_ = 1;
74
75#endif // HAVE_BLUETOOTH_BLUETOOTH_H
76}
77
78BluetoothSdp::~BluetoothSdp() {
79}
80
81string BluetoothSdp::getName() {
82 return "BluetoothSdp";
83}
84
85string BluetoothSdp::getInformation() {
86 return "bootstrap module based on bluetooth service discovery protocol";
87}
88
89bool BluetoothSdp::isFunctional() {
90#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
91 return true;
92#else
93 return false;
94#endif
95}
96
97void BluetoothSdp::start() {
98#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
99
100 /*
101 * Initializes and forks the scanner.
102 */
103
104 io_service_.post(boost::bind(&BluetoothSdp::bt_scan, this));
105 t_ = boost::thread(boost::bind(&boost::asio::io_service::run, &io_service_));
106
107#endif // HAVE_BLUETOOTH_BLUETOOTH_H
108}
109
110void BluetoothSdp::stop() {
111#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
112
113 /*
114 * Stops the scanner.
115 */
116
117 // not sure if this is thread safe
118 io_service_.stop();
119 t_.join();
120
121 if(sdp_session_ != NULL)
122 sdp_close(sdp_session_);
123
124#endif // HAVE_BLUETOOTH_BLUETOOTH_H
125}
126
127void BluetoothSdp::publishService(string name, string info1, string info2,
128 string info3) {
129#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
130
131 /*
132 * Publishes an SpoVNet SDP Service and
133 * adds the arguments as info attributes.
134 */
135
136 logging_debug("registering SDP service");
137
138 uint8_t rfcomm_channel = channel_;
139
140 uuid_t root_uuid, l2cap_uuid, rfcomm_uuid, svc_uuid, svc_class_uuid;
141 sdp_list_t *l2cap_list = 0, *rfcomm_list = 0, *root_list = 0, *proto_list =
142 0, *access_proto_list = 0, *svc_class_list = 0, *profile_list = 0;
143 sdp_data_t *channel = 0;
144 sdp_profile_desc_t profile;
145 sdp_record_t record = {0};
146 sdp_session_ = 0;
147
148 // prepare the info attribute buffers
149 //string namebuf, info1buf, info2buf, info3buf;
150 uint8_t namelen, info1len, info2len, info3len;
151
152 namelen = (uint8_t)name.length();
153 info1len = (uint8_t)info1.length();
154 info2len = (uint8_t)info2.length();
155 info3len = (uint8_t)info3.length();
156
157 if((namelen > 256) || (info1len > 256) || (info2len > 256) || (info3len > 256)) {
158 logging_error("string argument too long, max size is 256!");
159 return;
160 }
161
162 // set the general service ID
163 sdp_uuid128_create(&svc_uuid, &svc_uuid_int);
164 sdp_set_service_id(&record, svc_uuid);
165
166 // set the service class
167 sdp_uuid16_create(&svc_class_uuid, SERIAL_PORT_SVCLASS_ID);
168 svc_class_list = sdp_list_append(0, &svc_class_uuid);
169 sdp_set_service_classes(&record, svc_class_list);
170
171 // set the Bluetooth profile information
172 sdp_uuid16_create(&profile.uuid, SERIAL_PORT_PROFILE_ID);
173 profile.version = 0x0100;
174 profile_list = sdp_list_append(0, &profile);
175 sdp_set_profile_descs(&record, profile_list);
176
177 // make the service record publicly browsable
178 sdp_uuid16_create(&root_uuid, PUBLIC_BROWSE_GROUP);
179 root_list = sdp_list_append(0, &root_uuid);
180 sdp_set_browse_groups(&record, root_list);
181
182 // set l2cap informatiint argc, char* argv[]on
183 sdp_uuid16_create(&l2cap_uuid, L2CAP_UUID);
184 l2cap_list = sdp_list_append(0, &l2cap_uuid);
185 proto_list = sdp_list_append(0, l2cap_list);
186
187 // register the RFCOMM channel for RFCOMM sockets
188 sdp_uuid16_create(&rfcomm_uuid, RFCOMM_UUID);
189 channel = sdp_data_alloc(SDP_UINT8, &rfcomm_channel);
190 rfcomm_list = sdp_list_append(0, &rfcomm_uuid);
191 sdp_list_append(rfcomm_list, channel);
192 sdp_list_append(proto_list, rfcomm_list);
193
194 access_proto_list = sdp_list_append(0, proto_list);
195 sdp_set_access_protos(&record, access_proto_list);
196
197 // set the name, provider, and description
198 sdp_set_info_attr(&record, service_name, service_prov, svc_dsc);
199
200 // add the spovnet attributes
201 sdp_attr_add_new(&record, SDP_ATTR_SPOVNET_NAME, SDP_TEXT_STR8,
202 name.data());
203
204 sdp_attr_add_new(&record, SDP_ATTR_SPOVNET_INFO1, SDP_TEXT_STR8,
205 info1.data());
206
207 sdp_attr_add_new(&record, SDP_ATTR_SPOVNET_INFO2, SDP_TEXT_STR8,
208 info2.data());
209
210 sdp_attr_add_new(&record, SDP_ATTR_SPOVNET_INFO3, SDP_TEXT_STR8,
211 info3.data());
212
213 // connect to the local SDP server, register the service record
214 if( sdp_session_ == NULL ){
215 sdp_session_ = sdp_connect(BDADDR_ANY, BDADDR_LOCAL, SDP_RETRY_IF_BUSY);
216 }
217
218 if (sdp_session_ == NULL) {
219 logging_error( "something is wrong with your SDP server, nothing registered" );
220 } else {
221 int ret = sdp_record_register(sdp_session_, &record, 0);
222
223 if(ret < 0){
224 logging_error("failed registering sdp record");
225 }else{
226 logging_debug("sdp record registered using session " << sdp_session_);
227 }
228 }
229
230 // cleanup
231 sdp_data_free(channel);
232 sdp_list_free(l2cap_list, 0);
233 sdp_list_free(rfcomm_list, 0);
234 sdp_list_free(root_list, 0);
235 sdp_list_free(access_proto_list, 0);
236 sdp_list_free(svc_class_list, 0);
237 sdp_list_free(profile_list, 0);
238
239#endif // HAVE_BLUETOOTH_BLUETOOTH_H
240}
241
242void BluetoothSdp::revokeService(string name) {
243#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
244
245 logging_debug("unregistering SDP service");
246 sdp_close(sdp_session_);
247
248#endif // HAVE_BLUETOOTH_BLUETOOTH_H
249}
250
251#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
252
253void BluetoothSdp::bt_scan() {
254 /*
255 * Scans for other bluetooth devices and starts a SDP search on them.
256 */
257
258 logging_debug("scanning for peers");
259
260 inquiry_info *ii = NULL;
261 int max_rsp, num_rsp;
262 int dev_id, sock, len, flags;
263 int i;
264
265 bdaddr_t address;
266 uint8_t channel;
267
268 dev_id = hci_get_route(NULL);
269 sock = hci_open_dev(dev_id);
270 if (dev_id < 0 || sock < 0) {
271 logging_error("opening socket for device " << dev_id << " failed. can not scan for peers");
272 return;
273 }
274
275 len = 8;
276 max_rsp = 255;
277 flags = IREQ_CACHE_FLUSH;
278 ii = (inquiry_info*) malloc(max_rsp * sizeof(inquiry_info));
279
280 num_rsp = hci_inquiry(dev_id, len, max_rsp, NULL, &ii, flags);
281 if (num_rsp < 0)
282 logging_error("hci_inquiry failed with " << num_rsp);
283
284 for (i = 0; i < num_rsp; i++) {
285
286 address = (ii + i)->bdaddr;
287 logging_debug("found peer " << ba2string(&address) << ", querying SDP.")
288
289 // TODO: sdp_search can be very slow, fork it!
290 sdp_search(address);
291 }
292
293 free(ii);
294 close(sock);
295
296 int nextscan = (rand() % 40) + 5;
297 logging_debug("Next sdp scan in " << nextscan << " seconds");
298
299 scan_timer_.expires_from_now(boost::posix_time::seconds(nextscan));
300 scan_timer_.async_wait(boost::bind(&BluetoothSdp::bt_scan, this));
301}
302
303void BluetoothSdp::sdp_search(bdaddr_t target) {
304
305 /*
306 * Searches target for SDP records with the SpoVnet uuid
307 * and extracts its info attributes.
308 */
309
310 int status;
311 uuid_t svc_uuid;
312 sdp_list_t *response_list, *search_list, *attrid_list;
313 sdp_session_t *session = NULL;
314 uint32_t range = 0x0000ffff;
315 uint8_t port = 0;
316
317 // prepare the buffers for the attributes
318 char name[256], info1[256], info2[256], info3[256];
319
320 // connect to the SDP server running on the remote machine
321 logging_debug("querying services from bt device " << ba2string(&target));
322 session = sdp_connect(BDADDR_ANY, &target, 0);
323
324 if (session == NULL) {
325 logging_error("failed to connect to SDP server at " << ba2string(&target) <<".");
326 return;
327 }
328
329 sdp_uuid128_create(&svc_uuid, &svc_uuid_int);
330 search_list = sdp_list_append(0, &svc_uuid);
331 attrid_list = sdp_list_append(0, &range);
332
333 // get a list of service records that have UUID uuid_
334 response_list = NULL;
335 status = sdp_service_search_attr_req(session, search_list,
336 SDP_ATTR_REQ_RANGE, attrid_list, &response_list);
337
338 if (status == 0) {
339 sdp_list_t *proto_list = NULL;
340 sdp_list_t *r = response_list;
341
342 // go through each of the service records
343 for ( ; r != NULL; r = r->next) {
344 sdp_record_t *rec = (sdp_record_t*) r->data;
345
346 // get a list of the protocol sequences
347 if (sdp_get_access_protos(rec, &proto_list) == 0) {
348
349 // get the RFCOMM port number
350 port = sdp_get_proto_port(proto_list, RFCOMM_UUID);
351
352 sdp_list_free(proto_list, 0);
353
354 sdp_get_string_attr(rec, SDP_ATTR_SPOVNET_NAME, (char*)&name, 256);
355 sdp_get_string_attr(rec, SDP_ATTR_SPOVNET_INFO1, (char*)&info1, 256);
356 sdp_get_string_attr(rec, SDP_ATTR_SPOVNET_INFO2, (char*)&info2, 256);
357 sdp_get_string_attr(rec, SDP_ATTR_SPOVNET_INFO3, (char*)&info3, 256);
358
359 logging_info("Remote peer name is: " << name);
360 logging_info("Remote peer info1 is: " << info1);
361 logging_info("Remote peer info2 is: " << info2);
362 logging_info("Remote peer info3 is: " << info3);
363
364 // Callback
365 callback->onBootstrapServiceFound(name, info1, info2, info3);
366 }
367 sdp_record_free(rec);
368 }
369 } else {
370 logging_error("sdp_service_search_attr_req failed with timeout");
371 }
372
373 sdp_list_free(response_list, 0);
374 sdp_list_free(search_list, 0);
375 sdp_list_free(attrid_list, 0);
376 sdp_close(session);
377}
378
379string BluetoothSdp::ba2string(bdaddr_t *ba) {
380 /*
381 * Returns a string holding the bt adress in human readable form.
382 */
383 char addr[32] = { 0 };
384 char str[32] = { 0 };
385 ba2str(ba, str);
386 string result = str;
387 return result;
388}
389
390#endif // HAVE_BLUETOOTH_BLUETOOTH_H
391
392}} //namespace ariba, utility
Note: See TracBrowser for help on using the repository browser.