source: source/ariba/utility/bootstrap/modules/bluetoothsdp/BluetoothSdp.cpp@ 4904

Last change on this file since 4904 was 4904, checked in by stud-florian, 15 years ago
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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
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23// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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25// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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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
52const uint8_t svc_uuid_int[] = {0x59, 0x29, 0x24, 0x34, 0x69, 0x42, 0x11, 0xde, 0x94,
53 0x3e, 0x00, 0x21, 0x5d, 0xb4, 0xd8, 0x54};
54
55const char *service_name = "SpoVNet";
56const char *svc_dsc = "Spontaneous Virtual Network";
57const char *service_prov = "ITM Uni Karlsruhe";
58
59#endif // HAVE_BLUETOOTH_BLUETOOTH_H
60
61
62namespace ariba {
63namespace utility {
64use_logging_cpp(BluetoothSdp)
65;
66
67//TODO: figure out this compiler flag stuff
68
69BluetoothSdp::BluetoothSdp(BootstrapInformationCallback* _callback) :
70 BootstrapModule(_callback), scan_timer_(io_service_) {
71#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
72
73 // TODO: think about this!
74 channel_ = 7;
75 // TODO: what about the callback?
76
77#endif // HAVE_BLUETOOTH_BLUETOOTH_H
78}
79
80BluetoothSdp::~BluetoothSdp() {
81}
82
83string BluetoothSdp::getName() {
84 return "BluetoothSdp";
85}
86
87string BluetoothSdp::getInformation() {
88 return "bootstrap module based on bluetooth service discovery protocol";
89}
90
91bool BluetoothSdp::isFunctional() {
92#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
93 return true; // Not tested yet :)
94#else
95 return false;
96#endif
97}
98
99void BluetoothSdp::start() {
100#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
101
102 /*
103 * Initializes and forks the scanner.
104 */
105
106 io_service_.post(boost::bind(&BluetoothSdp::bt_scan, this));
107 t_ = boost::thread(boost::bind(&boost::asio::io_service::run, &io_service_));
108
109#endif // HAVE_BLUETOOTH_BLUETOOTH_H
110}
111
112void BluetoothSdp::stop() {
113#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
114
115 /*
116 * Stops the scanner.
117 */
118
119 // not sure if this is thread safe
120 io_service_.stop();
121 t_.join();
122
123#endif // HAVE_BLUETOOTH_BLUETOOTH_H
124}
125
126void BluetoothSdp::publishService(string name, string info1, string info2,
127 string info3) {
128#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
129
130 /*
131 * Publishes an SpoVNet SDP Service and
132 * adds the arguments as info attributes.
133 */
134
135 logging_info("Registering SDP service");
136
137 uint8_t rfcomm_channel = channel_;
138
139 uuid_t root_uuid, l2cap_uuid, rfcomm_uuid, svc_uuid, svc_class_uuid;
140 sdp_list_t *l2cap_list = 0, *rfcomm_list = 0, *root_list = 0, *proto_list =
141 0, *access_proto_list = 0, *svc_class_list = 0, *profile_list = 0;
142 sdp_data_t *channel = 0;
143 sdp_profile_desc_t profile;
144 sdp_record_t record = {0};
145 sdp_session_ = 0;
146
147 bdaddr_t bdaddr_any = (bdaddr_t) { {0, 0, 0, 0, 0, 0}};
148 bdaddr_t bdaddr_local = (bdaddr_t) { {0, 0, 0, 0xff, 0xff, 0xff}};
149
150 // prepare the info attribute buffers
151 string namebuf, info1buf, info2buf, info3buf;
152 uint8_t namelen, info1len, info2len, info3len;
153
154 namelen = (uint8_t)name.length();
155 info1len = (uint8_t)info1.length();
156 info2len = (uint8_t)info2.length();
157 info3len = (uint8_t)info3.length();
158
159 if((namelen > 256) || (info1len > 256) || (info2len > 256) || (info3len > 256)) {
160 logging_error("String Argument too long, max size is 256!");
161 return;
162 }
163
164 // we need to save the string len for sdp
165 namebuf = (char)namelen;
166 namebuf.append(name);
167 info1buf = (char)info1len;
168 info1buf.append(info1);
169 info2buf = (char)info2len;
170 info2buf.append(info2);
171 info3buf = (char)info3len;
172 info3buf.append(info3);
173
174 // set the general service ID
175 sdp_uuid128_create(&svc_uuid, &svc_uuid_int);
176 sdp_set_service_id(&record, svc_uuid);
177
178 // set the service class
179 sdp_uuid16_create(&svc_class_uuid, SERIAL_PORT_SVCLASS_ID);
180 svc_class_list = sdp_list_append(0, &svc_class_uuid);
181 sdp_set_service_classes(&record, svc_class_list);
182
183 // set the Bluetooth profile information
184 sdp_uuid16_create(&profile.uuid, SERIAL_PORT_PROFILE_ID);
185 profile.version = 0x0100;
186 profile_list = sdp_list_append(0, &profile);
187 sdp_set_profile_descs(&record, profile_list);
188
189 // make the service record publicly browsable
190 sdp_uuid16_create(&root_uuid, PUBLIC_BROWSE_GROUP);
191 root_list = sdp_list_append(0, &root_uuid);
192 sdp_set_browse_groups(&record, root_list);
193
194 // set l2cap informatiint argc, char* argv[]on
195 sdp_uuid16_create(&l2cap_uuid, L2CAP_UUID);
196 l2cap_list = sdp_list_append(0, &l2cap_uuid);
197 proto_list = sdp_list_append(0, l2cap_list);
198
199 // register the RFCOMM channel for RFCOMM sockets
200 sdp_uuid16_create(&rfcomm_uuid, RFCOMM_UUID);
201 channel = sdp_data_alloc(SDP_UINT8, &rfcomm_channel);
202 rfcomm_list = sdp_list_append(0, &rfcomm_uuid);
203 sdp_list_append(rfcomm_list, channel);
204 sdp_list_append(proto_list, rfcomm_list);
205
206 access_proto_list = sdp_list_append(0, proto_list);
207 sdp_set_access_protos(&record, access_proto_list);
208
209 // set the name, provider, and description
210 sdp_set_info_attr(&record, service_name, service_prov, svc_dsc);
211
212 // add the spovnet attributes
213 sdp_attr_add_new(&record, SDP_ATTR_SPOVNET_NAME, SDP_TEXT_STR8,
214 namebuf.data());
215
216 sdp_attr_add_new(&record, SDP_ATTR_SPOVNET_INFO1, SDP_TEXT_STR8,
217 info1buf.data());
218
219 sdp_attr_add_new(&record, SDP_ATTR_SPOVNET_INFO2, SDP_TEXT_STR8,
220 info2buf.data());
221
222 sdp_attr_add_new(&record, SDP_ATTR_SPOVNET_INFO3, SDP_TEXT_STR8,
223 info3buf.data());
224
225 // connect to the local SDP server, register the service record,
226 // and disconnect
227 sdp_session_ = sdp_connect(&bdaddr_any, &bdaddr_local, SDP_RETRY_IF_BUSY);
228
229 if (sdp_session_ == 0) {
230 logging_error( "Something is wrong with your SDP server, nothing registered" );
231 } else {
232 sdp_record_register(sdp_session_, &record, 0);
233 }
234
235 // cleanup
236 sdp_data_free(channel);
237 sdp_list_free(l2cap_list, 0);
238 sdp_list_free(rfcomm_list, 0);
239 sdp_list_free(root_list, 0);
240 sdp_list_free(access_proto_list, 0);
241 sdp_list_free(svc_class_list, 0);
242 sdp_list_free(profile_list, 0);
243
244#endif // HAVE_BLUETOOTH_BLUETOOTH_H
245}
246
247void BluetoothSdp::revokeService(string name) {
248#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
249
250 logging_info("Unregistering SDP service");
251 sdp_close(sdp_session_);
252
253#endif // HAVE_BLUETOOTH_BLUETOOTH_H
254}
255
256#ifdef HAVE_BLUETOOTH_BLUETOOTH_H
257
258void BluetoothSdp::bt_scan() {
259
260
261 /*
262 * Scans for other bluetooth devices and starts a SDP search on them.
263 * Repeats 20 seconds after the end of the scan.
264 */
265
266 logging_info("Scanning for peers");
267
268 inquiry_info *ii = NULL;
269 int max_rsp, num_rsp;
270 int dev_id, sock, len, flags;
271 int i;
272
273 /*
274 char addr[19] = { 0 };
275 char name[248] = { 0 };
276 */
277 bdaddr_t address;
278 uint8_t channel;
279
280 dev_id = hci_get_route(NULL);
281 sock = hci_open_dev(dev_id);
282 if (dev_id < 0 || sock < 0) {
283 logging_error("opening socket");
284 exit(1);
285 }
286
287 len = 8;
288 max_rsp = 255;
289 flags = IREQ_CACHE_FLUSH;
290 ii = (inquiry_info*) malloc(max_rsp * sizeof(inquiry_info));
291
292 num_rsp = hci_inquiry(dev_id, len, max_rsp, NULL, &ii, flags);
293 if (num_rsp < 0)
294 logging_error("hci_inquiry");
295
296 for (i = 0; i < num_rsp; i++) {
297 /*
298 ba2str(&(ii + i)->bdaddr, addr);
299 memset(name, 0, sizeof(name));
300 if (hci_read_remote_name(sock, &(ii + i)->bdaddr, sizeof(name),
301 name, 0) < 0)
302 strcpy(name, "[unknown]");
303 printf("%s %s\n", addr, name);
304 */
305
306 address = (ii + i)->bdaddr;
307 // TODO: sdp_search can be very slow, fork it!
308 sdp_search(address);
309 }
310
311 free(ii);
312 close(sock);
313
314 logging_info("Next scan in 20 seconds");
315
316 scan_timer_.expires_from_now(boost::posix_time::seconds(20));
317 scan_timer_.async_wait(boost::bind(&BluetoothSdp::bt_scan, this));
318}
319
320void BluetoothSdp::sdp_search(bdaddr_t target) {
321
322 /*
323 * Searches target for SDP records with the SpoVnet uuid
324 * and extracts its info attributes.
325 */
326
327 int status;
328 uuid_t svc_uuid;
329 sdp_list_t *response_list, *search_list, *attrid_list;
330 sdp_session_t *session = 0;
331 uint32_t range = 0x0000ffff;
332 uint8_t port = 0;
333 bdaddr_t any_addr = (bdaddr_t) { {0, 0, 0, 0, 0, 0}};
334
335 // prepare the buffers for the attributes
336 string name, info1, info2, info3;
337 name.reserve(256);
338 info1.reserve(256);
339 info2.reserve(256);
340 info3.reserve(256);
341
342 // connect to the SDP server running on the remote machine
343 session = sdp_connect(&any_addr, &target, 0);
344
345 if (session == 0) {
346 // TODO: put the remote's address here
347 logging_error("Failed to connect to remote SDP server.");
348 return;
349 }
350
351 sdp_uuid128_create(&svc_uuid, &svc_uuid_int);
352 search_list = sdp_list_append(0, &svc_uuid);
353 attrid_list = sdp_list_append(0, &range);
354
355 // get a list of service records that have UUID uuid_
356 response_list = NULL;
357 status = sdp_service_search_attr_req(session, search_list,
358 SDP_ATTR_REQ_RANGE, attrid_list, &response_list);
359
360 if (status == 0) {
361 sdp_list_t *proto_list = NULL;
362 sdp_list_t *r = response_list;
363
364 // go through each of the service records
365 for (; r; r = r->next) {
366 sdp_record_t *rec = (sdp_record_t*) r->data;
367
368 // get a list of the protocol sequences
369 if (sdp_get_access_protos(rec, &proto_list) == 0) {
370
371 // get the RFCOMM port number
372 port = sdp_get_proto_port(proto_list, RFCOMM_UUID);
373
374 sdp_list_free(proto_list, 0);
375
376 sdp_get_string_attr(rec, SDP_ATTR_SPOVNET_NAME, (char*)name.data(), name.size());
377 sdp_get_string_attr(rec, SDP_ATTR_SPOVNET_INFO1, (char*)info1.data(), info1.size());
378 sdp_get_string_attr(rec, SDP_ATTR_SPOVNET_INFO2, (char*)info2.data(), info2.size());
379 sdp_get_string_attr(rec, SDP_ATTR_SPOVNET_INFO3, (char*)info3.data(), info3.size());
380
381 std::cout << "Remote peer name is: " << name;
382 //TODO: callback here + extract info's and stuff
383 }
384 sdp_record_free(rec);
385 }
386 }
387 sdp_list_free(response_list, 0);
388 sdp_list_free(search_list, 0);
389 sdp_list_free(attrid_list, 0);
390 sdp_close(session);
391
392}
393
394#endif // HAVE_BLUETOOTH_BLUETOOTH_H
395
396}} //namespace ariba, utility
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