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1 | | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | | /* |
3 | | * |
4 | | * BlueZ - Bluetooth protocol stack for Linux |
5 | | * |
6 | | * Copyright (C) 2001-2002 Nokia Corporation |
7 | | * Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com> |
8 | | * Copyright (C) 2002-2010 Marcel Holtmann <marcel@holtmann.org> |
9 | | * Copyright (C) 2002-2003 Stephen Crane <steve.crane@rococosoft.com> |
10 | | * |
11 | | * |
12 | | */ |
13 | | |
14 | | #ifdef HAVE_CONFIG_H |
15 | | #include <config.h> |
16 | | #endif |
17 | | |
18 | | #include <stdio.h> |
19 | | #include <errno.h> |
20 | | #include <fcntl.h> |
21 | | #include <unistd.h> |
22 | | #include <stdlib.h> |
23 | | #include <limits.h> |
24 | | #include <string.h> |
25 | | #include <syslog.h> |
26 | | #include <sys/time.h> |
27 | | #include <sys/types.h> |
28 | | #include <sys/socket.h> |
29 | | #include <sys/un.h> |
30 | | #include <netinet/in.h> |
31 | | |
32 | | #include "bluetooth.h" |
33 | | #include "hci.h" |
34 | | #include "hci_lib.h" |
35 | | #include "l2cap.h" |
36 | | #include "sdp.h" |
37 | | #include "sdp_lib.h" |
38 | | |
39 | | #define SDPINF(fmt, arg...) syslog(LOG_INFO, fmt "\n", ## arg) |
40 | 18 | #define SDPERR(fmt, arg...) syslog(LOG_ERR, "%s: " fmt "\n", __func__ , ## arg) |
41 | | |
42 | 0 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) |
43 | | |
44 | | #ifdef SDP_DEBUG |
45 | | #define SDPDBG(fmt, arg...) syslog(LOG_DEBUG, "%s: " fmt "\n", __func__ , ## arg) |
46 | | #else |
47 | | #define SDPDBG(fmt...) |
48 | | #endif |
49 | | |
50 | | static const uint128_t bluetooth_base_uuid = { |
51 | | .data = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, |
52 | | 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB } |
53 | | }; |
54 | | |
55 | 0 | #define SDP_MAX_ATTR_LEN 65535 |
56 | | |
57 | | /* match MTU used by RFCOMM */ |
58 | 0 | #define SDP_LARGE_L2CAP_MTU 1013 |
59 | | |
60 | | static sdp_data_t *sdp_copy_seq(sdp_data_t *data); |
61 | | static int sdp_attr_add_new_with_length(sdp_record_t *rec, |
62 | | uint16_t attr, uint8_t dtd, const void *value, uint32_t len); |
63 | | static int sdp_gen_buffer(sdp_buf_t *buf, sdp_data_t *d); |
64 | | |
65 | | /* Message structure. */ |
66 | | struct tupla { |
67 | | int index; |
68 | | const char *str; |
69 | | }; |
70 | | |
71 | | static const struct tupla Protocol[] = { |
72 | | { SDP_UUID, "SDP" }, |
73 | | { UDP_UUID, "UDP" }, |
74 | | { RFCOMM_UUID, "RFCOMM" }, |
75 | | { TCP_UUID, "TCP" }, |
76 | | { TCS_BIN_UUID, "TCS-BIN" }, |
77 | | { TCS_AT_UUID, "TCS-AT" }, |
78 | | { OBEX_UUID, "OBEX" }, |
79 | | { IP_UUID, "IP" }, |
80 | | { FTP_UUID, "FTP" }, |
81 | | { HTTP_UUID, "HTTP" }, |
82 | | { WSP_UUID, "WSP" }, |
83 | | { BNEP_UUID, "BNEP" }, |
84 | | { UPNP_UUID, "UPNP" }, |
85 | | { HIDP_UUID, "HIDP" }, |
86 | | { HCRP_CTRL_UUID, "HCRP-Ctrl" }, |
87 | | { HCRP_DATA_UUID, "HCRP-Data" }, |
88 | | { HCRP_NOTE_UUID, "HCRP-Notify" }, |
89 | | { AVCTP_UUID, "AVCTP" }, |
90 | | { AVDTP_UUID, "AVDTP" }, |
91 | | { CMTP_UUID, "CMTP" }, |
92 | | { UDI_UUID, "UDI" }, |
93 | | { MCAP_CTRL_UUID, "MCAP-Ctrl" }, |
94 | | { MCAP_DATA_UUID, "MCAP-Data" }, |
95 | | { L2CAP_UUID, "L2CAP" }, |
96 | | { ATT_UUID, "ATT" }, |
97 | | { 0 } |
98 | | }; |
99 | | |
100 | | static const struct tupla ServiceClass[] = { |
101 | | { SDP_SERVER_SVCLASS_ID, "SDP Server" }, |
102 | | { BROWSE_GRP_DESC_SVCLASS_ID, "Browse Group Descriptor" }, |
103 | | { PUBLIC_BROWSE_GROUP, "Public Browse Group" }, |
104 | | { SERIAL_PORT_SVCLASS_ID, "Serial Port" }, |
105 | | { LAN_ACCESS_SVCLASS_ID, "LAN Access Using PPP" }, |
106 | | { DIALUP_NET_SVCLASS_ID, "Dialup Networking" }, |
107 | | { IRMC_SYNC_SVCLASS_ID, "IrMC Sync" }, |
108 | | { OBEX_OBJPUSH_SVCLASS_ID, "OBEX Object Push" }, |
109 | | { OBEX_FILETRANS_SVCLASS_ID, "OBEX File Transfer" }, |
110 | | { IRMC_SYNC_CMD_SVCLASS_ID, "IrMC Sync Command" }, |
111 | | { HEADSET_SVCLASS_ID, "Headset" }, |
112 | | { CORDLESS_TELEPHONY_SVCLASS_ID, "Cordless Telephony" }, |
113 | | { AUDIO_SOURCE_SVCLASS_ID, "Audio Source" }, |
114 | | { AUDIO_SINK_SVCLASS_ID, "Audio Sink" }, |
115 | | { AV_REMOTE_TARGET_SVCLASS_ID, "AV Remote Target" }, |
116 | | { ADVANCED_AUDIO_SVCLASS_ID, "Advanced Audio" }, |
117 | | { AV_REMOTE_SVCLASS_ID, "AV Remote" }, |
118 | | { AV_REMOTE_CONTROLLER_SVCLASS_ID, "AV Remote Controller" }, |
119 | | { INTERCOM_SVCLASS_ID, "Intercom" }, |
120 | | { FAX_SVCLASS_ID, "Fax" }, |
121 | | { HEADSET_AGW_SVCLASS_ID, "Headset Audio Gateway" }, |
122 | | { WAP_SVCLASS_ID, "WAP" }, |
123 | | { WAP_CLIENT_SVCLASS_ID, "WAP Client" }, |
124 | | { PANU_SVCLASS_ID, "PAN User" }, |
125 | | { NAP_SVCLASS_ID, "Network Access Point" }, |
126 | | { GN_SVCLASS_ID, "PAN Group Network" }, |
127 | | { DIRECT_PRINTING_SVCLASS_ID, "Direct Printing" }, |
128 | | { REFERENCE_PRINTING_SVCLASS_ID, "Reference Printing" }, |
129 | | { IMAGING_SVCLASS_ID, "Imaging" }, |
130 | | { IMAGING_RESPONDER_SVCLASS_ID, "Imaging Responder" }, |
131 | | { IMAGING_ARCHIVE_SVCLASS_ID, "Imaging Automatic Archive" }, |
132 | | { IMAGING_REFOBJS_SVCLASS_ID, "Imaging Referenced Objects" }, |
133 | | { HANDSFREE_SVCLASS_ID, "Handsfree" }, |
134 | | { HANDSFREE_AGW_SVCLASS_ID, "Handsfree Audio Gateway" }, |
135 | | { DIRECT_PRT_REFOBJS_SVCLASS_ID, "Direct Printing Ref. Objects" }, |
136 | | { REFLECTED_UI_SVCLASS_ID, "Reflected UI" }, |
137 | | { BASIC_PRINTING_SVCLASS_ID, "Basic Printing" }, |
138 | | { PRINTING_STATUS_SVCLASS_ID, "Printing Status" }, |
139 | | { HID_SVCLASS_ID, "Human Interface Device" }, |
140 | | { HCR_SVCLASS_ID, "Hardcopy Cable Replacement" }, |
141 | | { HCR_PRINT_SVCLASS_ID, "HCR Print" }, |
142 | | { HCR_SCAN_SVCLASS_ID, "HCR Scan" }, |
143 | | { CIP_SVCLASS_ID, "Common ISDN Access" }, |
144 | | { VIDEO_CONF_GW_SVCLASS_ID, "Video Conferencing Gateway" }, |
145 | | { UDI_MT_SVCLASS_ID, "UDI MT" }, |
146 | | { UDI_TA_SVCLASS_ID, "UDI TA" }, |
147 | | { AV_SVCLASS_ID, "Audio/Video" }, |
148 | | { SAP_SVCLASS_ID, "SIM Access" }, |
149 | | { PBAP_PCE_SVCLASS_ID, "Phonebook Access - PCE" }, |
150 | | { PBAP_PSE_SVCLASS_ID, "Phonebook Access - PSE" }, |
151 | | { PBAP_SVCLASS_ID, "Phonebook Access" }, |
152 | | { MAP_MSE_SVCLASS_ID, "Message Access - MAS" }, |
153 | | { MAP_MCE_SVCLASS_ID, "Message Access - MNS" }, |
154 | | { MAP_SVCLASS_ID, "Message Access" }, |
155 | | { PNP_INFO_SVCLASS_ID, "PnP Information" }, |
156 | | { GENERIC_NETWORKING_SVCLASS_ID, "Generic Networking" }, |
157 | | { GENERIC_FILETRANS_SVCLASS_ID, "Generic File Transfer" }, |
158 | | { GENERIC_AUDIO_SVCLASS_ID, "Generic Audio" }, |
159 | | { GENERIC_TELEPHONY_SVCLASS_ID, "Generic Telephony" }, |
160 | | { UPNP_SVCLASS_ID, "UPnP" }, |
161 | | { UPNP_IP_SVCLASS_ID, "UPnP IP" }, |
162 | | { UPNP_PAN_SVCLASS_ID, "UPnP PAN" }, |
163 | | { UPNP_LAP_SVCLASS_ID, "UPnP LAP" }, |
164 | | { UPNP_L2CAP_SVCLASS_ID, "UPnP L2CAP" }, |
165 | | { VIDEO_SOURCE_SVCLASS_ID, "Video Source" }, |
166 | | { VIDEO_SINK_SVCLASS_ID, "Video Sink" }, |
167 | | { VIDEO_DISTRIBUTION_SVCLASS_ID, "Video Distribution" }, |
168 | | { HDP_SVCLASS_ID, "HDP" }, |
169 | | { HDP_SOURCE_SVCLASS_ID, "HDP Source" }, |
170 | | { HDP_SINK_SVCLASS_ID, "HDP Sink" }, |
171 | | { GENERIC_ACCESS_SVCLASS_ID, "Generic Access" }, |
172 | | { GENERIC_ATTRIB_SVCLASS_ID, "Generic Attribute" }, |
173 | | { APPLE_AGENT_SVCLASS_ID, "Apple Agent" }, |
174 | | { 0 } |
175 | | }; |
176 | | |
177 | 0 | #define Profile ServiceClass |
178 | | |
179 | | static const char *string_lookup(const struct tupla *pt0, int index) |
180 | 0 | { |
181 | 0 | const struct tupla *pt; |
182 | |
|
183 | 0 | for (pt = pt0; pt->index; pt++) |
184 | 0 | if (pt->index == index) |
185 | 0 | return pt->str; |
186 | | |
187 | 0 | return ""; |
188 | 0 | } |
189 | | |
190 | | static const char *string_lookup_uuid(const struct tupla *pt0, |
191 | | const uuid_t *uuid) |
192 | 0 | { |
193 | 0 | uuid_t tmp_uuid; |
194 | |
|
195 | 0 | memcpy(&tmp_uuid, uuid, sizeof(tmp_uuid)); |
196 | |
|
197 | 0 | if (sdp_uuid128_to_uuid(&tmp_uuid)) { |
198 | 0 | switch (tmp_uuid.type) { |
199 | 0 | case SDP_UUID16: |
200 | 0 | return string_lookup(pt0, tmp_uuid.value.uuid16); |
201 | 0 | case SDP_UUID32: |
202 | 0 | return string_lookup(pt0, tmp_uuid.value.uuid32); |
203 | 0 | } |
204 | 0 | } |
205 | | |
206 | 0 | return ""; |
207 | 0 | } |
208 | | |
209 | | /* |
210 | | * Prints into a string the Protocol UUID |
211 | | * coping a maximum of n characters. |
212 | | */ |
213 | | static int uuid2str(const struct tupla *message, const uuid_t *uuid, char *str, |
214 | | size_t n) |
215 | 0 | { |
216 | 0 | const char *str2; |
217 | |
|
218 | 0 | if (!uuid) { |
219 | 0 | snprintf(str, n, "NULL"); |
220 | 0 | return -2; |
221 | 0 | } |
222 | | |
223 | 0 | switch (uuid->type) { |
224 | 0 | case SDP_UUID16: |
225 | 0 | str2 = string_lookup(message, uuid->value.uuid16); |
226 | 0 | snprintf(str, n, "%s", str2); |
227 | 0 | break; |
228 | 0 | case SDP_UUID32: |
229 | 0 | str2 = string_lookup(message, uuid->value.uuid32); |
230 | 0 | snprintf(str, n, "%s", str2); |
231 | 0 | break; |
232 | 0 | case SDP_UUID128: |
233 | 0 | str2 = string_lookup_uuid(message, uuid); |
234 | 0 | snprintf(str, n, "%s", str2); |
235 | 0 | break; |
236 | 0 | default: |
237 | 0 | snprintf(str, n, "Type of UUID (%x) unknown.", uuid->type); |
238 | 0 | return -1; |
239 | 0 | } |
240 | | |
241 | 0 | return 0; |
242 | 0 | } |
243 | | |
244 | | int sdp_proto_uuid2strn(const uuid_t *uuid, char *str, size_t n) |
245 | 0 | { |
246 | 0 | return uuid2str(Protocol, uuid, str, n); |
247 | 0 | } |
248 | | |
249 | | int sdp_svclass_uuid2strn(const uuid_t *uuid, char *str, size_t n) |
250 | 0 | { |
251 | 0 | return uuid2str(ServiceClass, uuid, str, n); |
252 | 0 | } |
253 | | |
254 | | int sdp_profile_uuid2strn(const uuid_t *uuid, char *str, size_t n) |
255 | 0 | { |
256 | 0 | return uuid2str(Profile, uuid, str, n); |
257 | 0 | } |
258 | | |
259 | | /* |
260 | | * convert the UUID to string, copying a maximum of n characters. |
261 | | */ |
262 | | int sdp_uuid2strn(const uuid_t *uuid, char *str, size_t n) |
263 | 0 | { |
264 | 0 | if (!uuid) { |
265 | 0 | snprintf(str, n, "NULL"); |
266 | 0 | return -2; |
267 | 0 | } |
268 | 0 | switch (uuid->type) { |
269 | 0 | case SDP_UUID16: |
270 | 0 | snprintf(str, n, "%.4x", uuid->value.uuid16); |
271 | 0 | break; |
272 | 0 | case SDP_UUID32: |
273 | 0 | snprintf(str, n, "%.8x", uuid->value.uuid32); |
274 | 0 | break; |
275 | 0 | case SDP_UUID128:{ |
276 | 0 | unsigned int data0; |
277 | 0 | unsigned short data1; |
278 | 0 | unsigned short data2; |
279 | 0 | unsigned short data3; |
280 | 0 | unsigned int data4; |
281 | 0 | unsigned short data5; |
282 | |
|
283 | 0 | memcpy(&data0, &uuid->value.uuid128.data[0], 4); |
284 | 0 | memcpy(&data1, &uuid->value.uuid128.data[4], 2); |
285 | 0 | memcpy(&data2, &uuid->value.uuid128.data[6], 2); |
286 | 0 | memcpy(&data3, &uuid->value.uuid128.data[8], 2); |
287 | 0 | memcpy(&data4, &uuid->value.uuid128.data[10], 4); |
288 | 0 | memcpy(&data5, &uuid->value.uuid128.data[14], 2); |
289 | |
|
290 | 0 | snprintf(str, n, "%.8x-%.4x-%.4x-%.4x-%.8x%.4x", |
291 | 0 | ntohl(data0), ntohs(data1), |
292 | 0 | ntohs(data2), ntohs(data3), |
293 | 0 | ntohl(data4), ntohs(data5)); |
294 | 0 | } |
295 | 0 | break; |
296 | 0 | default: |
297 | 0 | snprintf(str, n, "Type of UUID (%x) unknown.", uuid->type); |
298 | 0 | return -1; /* Enum type of UUID not set */ |
299 | 0 | } |
300 | 0 | return 0; |
301 | 0 | } |
302 | | |
303 | | #ifdef SDP_DEBUG |
304 | | /* |
305 | | * Function prints the UUID in hex as per defined syntax - |
306 | | * |
307 | | * 4bytes-2bytes-2bytes-2bytes-6bytes |
308 | | * |
309 | | * There is some ugly code, including hardcoding, but |
310 | | * that is just the way it is converting 16 and 32 bit |
311 | | * UUIDs to 128 bit as defined in the SDP doc |
312 | | */ |
313 | | void sdp_uuid_print(const uuid_t *uuid) |
314 | | { |
315 | | if (uuid == NULL) { |
316 | | SDPERR("Null passed to print UUID"); |
317 | | return; |
318 | | } |
319 | | if (uuid->type == SDP_UUID16) { |
320 | | SDPDBG(" uint16_t : 0x%.4x", uuid->value.uuid16); |
321 | | } else if (uuid->type == SDP_UUID32) { |
322 | | SDPDBG(" uint32_t : 0x%.8x", uuid->value.uuid32); |
323 | | } else if (uuid->type == SDP_UUID128) { |
324 | | unsigned int data0; |
325 | | unsigned short data1; |
326 | | unsigned short data2; |
327 | | unsigned short data3; |
328 | | unsigned int data4; |
329 | | unsigned short data5; |
330 | | |
331 | | memcpy(&data0, &uuid->value.uuid128.data[0], 4); |
332 | | memcpy(&data1, &uuid->value.uuid128.data[4], 2); |
333 | | memcpy(&data2, &uuid->value.uuid128.data[6], 2); |
334 | | memcpy(&data3, &uuid->value.uuid128.data[8], 2); |
335 | | memcpy(&data4, &uuid->value.uuid128.data[10], 4); |
336 | | memcpy(&data5, &uuid->value.uuid128.data[14], 2); |
337 | | |
338 | | SDPDBG(" uint128_t : 0x%.8x-%.4x-%.4x-%.4x-%.8x%.4x", |
339 | | ntohl(data0), ntohs(data1), ntohs(data2), |
340 | | ntohs(data3), ntohl(data4), ntohs(data5)); |
341 | | } else |
342 | | SDPERR("Enum type of UUID not set"); |
343 | | } |
344 | | #endif |
345 | | |
346 | | sdp_data_t *sdp_data_alloc_with_length(uint8_t dtd, const void *value, |
347 | | uint32_t length) |
348 | 210k | { |
349 | 210k | sdp_data_t *seq; |
350 | 210k | sdp_data_t *d = bt_malloc0(sizeof(sdp_data_t)); |
351 | | |
352 | 210k | if (!d) |
353 | 0 | return NULL; |
354 | | |
355 | 210k | d->dtd = dtd; |
356 | 210k | d->unitSize = sizeof(uint8_t); |
357 | | |
358 | 210k | switch (dtd) { |
359 | 13 | case SDP_DATA_NIL: |
360 | 13 | break; |
361 | 29 | case SDP_UINT8: |
362 | 29 | d->val.uint8 = *(uint8_t *) value; |
363 | 29 | d->unitSize += sizeof(uint8_t); |
364 | 29 | break; |
365 | 0 | case SDP_INT8: |
366 | 0 | case SDP_BOOL: |
367 | 0 | d->val.int8 = *(int8_t *) value; |
368 | 0 | d->unitSize += sizeof(int8_t); |
369 | 0 | break; |
370 | 4 | case SDP_UINT16: |
371 | 4 | d->val.uint16 = bt_get_unaligned((uint16_t *) value); |
372 | 4 | d->unitSize += sizeof(uint16_t); |
373 | 4 | break; |
374 | 0 | case SDP_INT16: |
375 | 0 | d->val.int16 = bt_get_unaligned((int16_t *) value); |
376 | 0 | d->unitSize += sizeof(int16_t); |
377 | 0 | break; |
378 | 181 | case SDP_UINT32: |
379 | 181 | d->val.uint32 = bt_get_unaligned((uint32_t *) value); |
380 | 181 | d->unitSize += sizeof(uint32_t); |
381 | 181 | break; |
382 | 0 | case SDP_INT32: |
383 | 0 | d->val.int32 = bt_get_unaligned((int32_t *) value); |
384 | 0 | d->unitSize += sizeof(int32_t); |
385 | 0 | break; |
386 | 0 | case SDP_INT64: |
387 | 0 | d->val.int64 = bt_get_unaligned((int64_t *) value); |
388 | 0 | d->unitSize += sizeof(int64_t); |
389 | 0 | break; |
390 | 8 | case SDP_UINT64: |
391 | 8 | d->val.uint64 = bt_get_unaligned((uint64_t *) value); |
392 | 8 | d->unitSize += sizeof(uint64_t); |
393 | 8 | break; |
394 | 0 | case SDP_UINT128: |
395 | 0 | memcpy(&d->val.uint128.data, value, sizeof(uint128_t)); |
396 | 0 | d->unitSize += sizeof(uint128_t); |
397 | 0 | break; |
398 | 25.2k | case SDP_INT128: |
399 | 25.2k | memcpy(&d->val.int128.data, value, sizeof(uint128_t)); |
400 | 25.2k | d->unitSize += sizeof(uint128_t); |
401 | 25.2k | break; |
402 | 4 | case SDP_UUID16: |
403 | 4 | sdp_uuid16_create(&d->val.uuid, bt_get_unaligned((uint16_t *) value)); |
404 | 4 | d->unitSize += sizeof(uint16_t); |
405 | 4 | break; |
406 | 0 | case SDP_UUID32: |
407 | 0 | sdp_uuid32_create(&d->val.uuid, bt_get_unaligned((uint32_t *) value)); |
408 | 0 | d->unitSize += sizeof(uint32_t); |
409 | 0 | break; |
410 | 260 | case SDP_UUID128: |
411 | 260 | sdp_uuid128_create(&d->val.uuid, value); |
412 | 260 | d->unitSize += sizeof(uint128_t); |
413 | 260 | break; |
414 | 71.9k | case SDP_URL_STR8: |
415 | 72.4k | case SDP_URL_STR16: |
416 | 73.0k | case SDP_TEXT_STR8: |
417 | 73.9k | case SDP_TEXT_STR16: |
418 | 73.9k | if (!value) { |
419 | 0 | free(d); |
420 | 0 | return NULL; |
421 | 0 | } |
422 | | |
423 | 73.9k | d->unitSize += length; |
424 | 73.9k | if (length <= USHRT_MAX) { |
425 | 73.8k | d->val.str = bt_malloc0(length + 1); |
426 | 73.8k | if (!d->val.str) { |
427 | 0 | free(d); |
428 | 0 | return NULL; |
429 | 0 | } |
430 | | |
431 | 73.8k | memcpy(d->val.str, value, length); |
432 | 73.8k | } else { |
433 | 18 | SDPERR("Strings of size > USHRT_MAX not supported"); |
434 | 18 | free(d); |
435 | 18 | d = NULL; |
436 | 18 | } |
437 | 73.9k | break; |
438 | 73.9k | case SDP_URL_STR32: |
439 | 0 | case SDP_TEXT_STR32: |
440 | 0 | SDPERR("Strings of size > USHRT_MAX not supported"); |
441 | 0 | break; |
442 | 1.68k | case SDP_ALT8: |
443 | 1.68k | case SDP_ALT16: |
444 | 1.68k | case SDP_ALT32: |
445 | 110k | case SDP_SEQ8: |
446 | 110k | case SDP_SEQ16: |
447 | 110k | case SDP_SEQ32: |
448 | 110k | if (dtd == SDP_ALT8 || dtd == SDP_SEQ8) |
449 | 110k | d->unitSize += sizeof(uint8_t); |
450 | 0 | else if (dtd == SDP_ALT16 || dtd == SDP_SEQ16) |
451 | 0 | d->unitSize += sizeof(uint16_t); |
452 | 0 | else if (dtd == SDP_ALT32 || dtd == SDP_SEQ32) |
453 | 0 | d->unitSize += sizeof(uint32_t); |
454 | 110k | seq = (sdp_data_t *)value; |
455 | 110k | d->val.dataseq = seq; |
456 | 110k | for (; seq; seq = seq->next) |
457 | 0 | d->unitSize += seq->unitSize; |
458 | 110k | break; |
459 | 0 | default: |
460 | 0 | free(d); |
461 | 0 | d = NULL; |
462 | 210k | } |
463 | | |
464 | 210k | return d; |
465 | 210k | } |
466 | | |
467 | | sdp_data_t *sdp_data_alloc(uint8_t dtd, const void *value) |
468 | 136k | { |
469 | 136k | uint32_t length; |
470 | | |
471 | 136k | switch (dtd) { |
472 | 0 | case SDP_URL_STR8: |
473 | 0 | case SDP_URL_STR16: |
474 | 0 | case SDP_TEXT_STR8: |
475 | 0 | case SDP_TEXT_STR16: |
476 | 0 | if (!value) |
477 | 0 | return NULL; |
478 | | |
479 | 0 | length = strlen((char *) value); |
480 | 0 | break; |
481 | 136k | default: |
482 | 136k | length = 0; |
483 | 136k | break; |
484 | 136k | } |
485 | | |
486 | 136k | return sdp_data_alloc_with_length(dtd, value, length); |
487 | 136k | } |
488 | | |
489 | | sdp_data_t *sdp_seq_append(sdp_data_t *seq, sdp_data_t *d) |
490 | 202k | { |
491 | 202k | if (seq) { |
492 | 98.7k | sdp_data_t *p; |
493 | 116M | for (p = seq; p->next; p = p->next); |
494 | 98.7k | p->next = d; |
495 | 98.7k | } else |
496 | 104k | seq = d; |
497 | 202k | d->next = NULL; |
498 | 202k | return seq; |
499 | 202k | } |
500 | | |
501 | | sdp_data_t *sdp_seq_alloc_with_length(void **dtds, void **values, int *length, |
502 | | int len) |
503 | 0 | { |
504 | 0 | sdp_data_t *curr = NULL, *seq = NULL; |
505 | 0 | int i; |
506 | |
|
507 | 0 | for (i = 0; i < len; i++) { |
508 | 0 | sdp_data_t *data; |
509 | 0 | uint8_t dtd = *(uint8_t *) dtds[i]; |
510 | |
|
511 | 0 | if (dtd >= SDP_SEQ8 && dtd <= SDP_ALT32) |
512 | 0 | data = (sdp_data_t *) values[i]; |
513 | 0 | else |
514 | 0 | data = sdp_data_alloc_with_length(dtd, values[i], length[i]); |
515 | |
|
516 | 0 | if (!data) { |
517 | 0 | sdp_data_free(seq); |
518 | 0 | return NULL; |
519 | 0 | } |
520 | | |
521 | 0 | if (curr) |
522 | 0 | curr->next = data; |
523 | 0 | else |
524 | 0 | seq = data; |
525 | |
|
526 | 0 | curr = data; |
527 | 0 | } |
528 | | |
529 | 0 | return sdp_data_alloc(SDP_SEQ8, seq); |
530 | 0 | } |
531 | | |
532 | | sdp_data_t *sdp_seq_alloc(void **dtds, void **values, int len) |
533 | 0 | { |
534 | 0 | sdp_data_t *curr = NULL, *seq = NULL; |
535 | 0 | int i; |
536 | |
|
537 | 0 | for (i = 0; i < len; i++) { |
538 | 0 | sdp_data_t *data; |
539 | 0 | uint8_t dtd = *(uint8_t *) dtds[i]; |
540 | |
|
541 | 0 | if (dtd >= SDP_SEQ8 && dtd <= SDP_ALT32) |
542 | 0 | data = (sdp_data_t *) values[i]; |
543 | 0 | else |
544 | 0 | data = sdp_data_alloc(dtd, values[i]); |
545 | |
|
546 | 0 | if (!data) { |
547 | 0 | sdp_data_free(seq); |
548 | 0 | return NULL; |
549 | 0 | } |
550 | | |
551 | 0 | if (curr) |
552 | 0 | curr->next = data; |
553 | 0 | else |
554 | 0 | seq = data; |
555 | |
|
556 | 0 | curr = data; |
557 | 0 | } |
558 | | |
559 | 0 | return sdp_data_alloc(SDP_SEQ8, seq); |
560 | 0 | } |
561 | | |
562 | | static void extract_svclass_uuid(sdp_data_t *data, uuid_t *uuid) |
563 | 0 | { |
564 | 0 | sdp_data_t *d; |
565 | |
|
566 | 0 | if (!data || !SDP_IS_SEQ(data->dtd)) |
567 | 0 | return; |
568 | | |
569 | 0 | d = data->val.dataseq; |
570 | 0 | if (!d) |
571 | 0 | return; |
572 | | |
573 | 0 | if (d->dtd < SDP_UUID16 || d->dtd > SDP_UUID128) |
574 | 0 | return; |
575 | | |
576 | 0 | *uuid = d->val.uuid; |
577 | 0 | } |
578 | | |
579 | | int sdp_attr_add(sdp_record_t *rec, uint16_t attr, sdp_data_t *d) |
580 | 67 | { |
581 | 67 | sdp_data_t *p = sdp_data_get(rec, attr); |
582 | | |
583 | 67 | if (p) |
584 | 3 | return -1; |
585 | 64 | if (!d) |
586 | 0 | return -1; |
587 | | |
588 | 64 | d->attrId = attr; |
589 | 64 | rec->attrlist = sdp_list_insert_sorted(rec->attrlist, d, sdp_attrid_comp_func); |
590 | | |
591 | 64 | if (attr == SDP_ATTR_SVCLASS_ID_LIST) |
592 | 0 | extract_svclass_uuid(d, &rec->svclass); |
593 | | |
594 | 64 | return 0; |
595 | 64 | } |
596 | | |
597 | | void sdp_attr_remove(sdp_record_t *rec, uint16_t attr) |
598 | 0 | { |
599 | 0 | sdp_data_t *d = sdp_data_get(rec, attr); |
600 | |
|
601 | 0 | if (d) |
602 | 0 | rec->attrlist = sdp_list_remove(rec->attrlist, d); |
603 | |
|
604 | 0 | if (attr == SDP_ATTR_SVCLASS_ID_LIST) |
605 | 0 | memset(&rec->svclass, 0, sizeof(rec->svclass)); |
606 | 0 | } |
607 | | |
608 | | void sdp_set_seq_len(uint8_t *ptr, uint32_t length) |
609 | 0 | { |
610 | 0 | uint8_t dtd = *ptr++; |
611 | |
|
612 | 0 | switch (dtd) { |
613 | 0 | case SDP_SEQ8: |
614 | 0 | case SDP_ALT8: |
615 | 0 | case SDP_TEXT_STR8: |
616 | 0 | case SDP_URL_STR8: |
617 | 0 | *ptr = (uint8_t) length; |
618 | 0 | break; |
619 | 0 | case SDP_SEQ16: |
620 | 0 | case SDP_ALT16: |
621 | 0 | case SDP_TEXT_STR16: |
622 | 0 | case SDP_URL_STR16: |
623 | 0 | bt_put_be16(length, ptr); |
624 | 0 | break; |
625 | 0 | case SDP_SEQ32: |
626 | 0 | case SDP_ALT32: |
627 | 0 | case SDP_TEXT_STR32: |
628 | 0 | case SDP_URL_STR32: |
629 | 0 | bt_put_be32(length, ptr); |
630 | 0 | break; |
631 | 0 | } |
632 | 0 | } |
633 | | |
634 | | static int sdp_get_data_type_size(uint8_t dtd) |
635 | 0 | { |
636 | 0 | int size = sizeof(uint8_t); |
637 | |
|
638 | 0 | switch (dtd) { |
639 | 0 | case SDP_SEQ8: |
640 | 0 | case SDP_TEXT_STR8: |
641 | 0 | case SDP_URL_STR8: |
642 | 0 | case SDP_ALT8: |
643 | 0 | size += sizeof(uint8_t); |
644 | 0 | break; |
645 | 0 | case SDP_SEQ16: |
646 | 0 | case SDP_TEXT_STR16: |
647 | 0 | case SDP_URL_STR16: |
648 | 0 | case SDP_ALT16: |
649 | 0 | size += sizeof(uint16_t); |
650 | 0 | break; |
651 | 0 | case SDP_SEQ32: |
652 | 0 | case SDP_TEXT_STR32: |
653 | 0 | case SDP_URL_STR32: |
654 | 0 | case SDP_ALT32: |
655 | 0 | size += sizeof(uint32_t); |
656 | 0 | break; |
657 | 0 | } |
658 | | |
659 | 0 | return size; |
660 | 0 | } |
661 | | |
662 | | void sdp_set_attrid(sdp_buf_t *buf, uint16_t attr) |
663 | 0 | { |
664 | 0 | uint8_t *p = buf->data; |
665 | | |
666 | | /* data type for attr */ |
667 | 0 | *p++ = SDP_UINT16; |
668 | 0 | buf->data_size = sizeof(uint8_t); |
669 | 0 | bt_put_be16(attr, p); |
670 | 0 | buf->data_size += sizeof(uint16_t); |
671 | 0 | } |
672 | | |
673 | | static int get_data_size(sdp_buf_t *buf, sdp_data_t *sdpdata) |
674 | 0 | { |
675 | 0 | sdp_data_t *d; |
676 | 0 | int n = 0; |
677 | |
|
678 | 0 | for (d = sdpdata->val.dataseq; d; d = d->next) { |
679 | 0 | if (buf->data) |
680 | 0 | n += sdp_gen_pdu(buf, d); |
681 | 0 | else |
682 | 0 | n += sdp_gen_buffer(buf, d); |
683 | 0 | } |
684 | |
|
685 | 0 | return n; |
686 | 0 | } |
687 | | |
688 | | static int sdp_get_data_size(sdp_buf_t *buf, sdp_data_t *d) |
689 | 0 | { |
690 | 0 | uint32_t data_size = 0; |
691 | 0 | uint8_t dtd = d->dtd; |
692 | |
|
693 | 0 | switch (dtd) { |
694 | 0 | case SDP_DATA_NIL: |
695 | 0 | break; |
696 | 0 | case SDP_UINT8: |
697 | 0 | data_size = sizeof(uint8_t); |
698 | 0 | break; |
699 | 0 | case SDP_UINT16: |
700 | 0 | data_size = sizeof(uint16_t); |
701 | 0 | break; |
702 | 0 | case SDP_UINT32: |
703 | 0 | data_size = sizeof(uint32_t); |
704 | 0 | break; |
705 | 0 | case SDP_UINT64: |
706 | 0 | data_size = sizeof(uint64_t); |
707 | 0 | break; |
708 | 0 | case SDP_UINT128: |
709 | 0 | data_size = sizeof(uint128_t); |
710 | 0 | break; |
711 | 0 | case SDP_INT8: |
712 | 0 | case SDP_BOOL: |
713 | 0 | data_size = sizeof(int8_t); |
714 | 0 | break; |
715 | 0 | case SDP_INT16: |
716 | 0 | data_size = sizeof(int16_t); |
717 | 0 | break; |
718 | 0 | case SDP_INT32: |
719 | 0 | data_size = sizeof(int32_t); |
720 | 0 | break; |
721 | 0 | case SDP_INT64: |
722 | 0 | data_size = sizeof(int64_t); |
723 | 0 | break; |
724 | 0 | case SDP_INT128: |
725 | 0 | data_size = sizeof(uint128_t); |
726 | 0 | break; |
727 | 0 | case SDP_TEXT_STR8: |
728 | 0 | case SDP_TEXT_STR16: |
729 | 0 | case SDP_TEXT_STR32: |
730 | 0 | case SDP_URL_STR8: |
731 | 0 | case SDP_URL_STR16: |
732 | 0 | case SDP_URL_STR32: |
733 | 0 | data_size = d->unitSize - sizeof(uint8_t); |
734 | 0 | break; |
735 | 0 | case SDP_SEQ8: |
736 | 0 | case SDP_SEQ16: |
737 | 0 | case SDP_SEQ32: |
738 | 0 | data_size = get_data_size(buf, d); |
739 | 0 | break; |
740 | 0 | case SDP_ALT8: |
741 | 0 | case SDP_ALT16: |
742 | 0 | case SDP_ALT32: |
743 | 0 | data_size = get_data_size(buf, d); |
744 | 0 | break; |
745 | 0 | case SDP_UUID16: |
746 | 0 | data_size = sizeof(uint16_t); |
747 | 0 | break; |
748 | 0 | case SDP_UUID32: |
749 | 0 | data_size = sizeof(uint32_t); |
750 | 0 | break; |
751 | 0 | case SDP_UUID128: |
752 | 0 | data_size = sizeof(uint128_t); |
753 | 0 | break; |
754 | 0 | default: |
755 | 0 | break; |
756 | 0 | } |
757 | | |
758 | 0 | return data_size; |
759 | 0 | } |
760 | | |
761 | | static int sdp_gen_buffer(sdp_buf_t *buf, sdp_data_t *d) |
762 | 0 | { |
763 | 0 | int orig = buf->buf_size; |
764 | |
|
765 | 0 | if (buf->buf_size == 0 && d->dtd == 0) { |
766 | | /* create initial sequence */ |
767 | 0 | buf->buf_size += sizeof(uint8_t); |
768 | | |
769 | | /* reserve space for sequence size */ |
770 | 0 | buf->buf_size += sizeof(uint8_t); |
771 | 0 | } |
772 | | |
773 | | /* attribute length */ |
774 | 0 | buf->buf_size += sizeof(uint8_t) + sizeof(uint16_t); |
775 | |
|
776 | 0 | buf->buf_size += sdp_get_data_type_size(d->dtd); |
777 | 0 | buf->buf_size += sdp_get_data_size(buf, d); |
778 | |
|
779 | 0 | if (buf->buf_size > UCHAR_MAX && d->dtd == SDP_SEQ8) |
780 | 0 | buf->buf_size += sizeof(uint8_t); |
781 | |
|
782 | 0 | return buf->buf_size - orig; |
783 | 0 | } |
784 | | |
785 | | int sdp_gen_pdu(sdp_buf_t *buf, sdp_data_t *d) |
786 | 0 | { |
787 | 0 | uint32_t pdu_size, data_size; |
788 | 0 | unsigned char *src = NULL, is_seq = 0, is_alt = 0; |
789 | 0 | uint16_t u16; |
790 | 0 | uint32_t u32; |
791 | 0 | uint64_t u64; |
792 | 0 | uint128_t u128; |
793 | 0 | uint8_t *seqp = buf->data + buf->data_size; |
794 | 0 | uint32_t orig_data_size = buf->data_size; |
795 | |
|
796 | 0 | recalculate: |
797 | 0 | pdu_size = sdp_get_data_type_size(d->dtd); |
798 | 0 | buf->data_size += pdu_size; |
799 | |
|
800 | 0 | data_size = sdp_get_data_size(buf, d); |
801 | 0 | if (data_size > UCHAR_MAX && d->dtd == SDP_SEQ8) { |
802 | 0 | buf->data_size = orig_data_size; |
803 | 0 | d->dtd = SDP_SEQ16; |
804 | 0 | goto recalculate; |
805 | 0 | } |
806 | | |
807 | 0 | *seqp = d->dtd; |
808 | |
|
809 | 0 | switch (d->dtd) { |
810 | 0 | case SDP_DATA_NIL: |
811 | 0 | break; |
812 | 0 | case SDP_UINT8: |
813 | 0 | src = &d->val.uint8; |
814 | 0 | break; |
815 | 0 | case SDP_UINT16: |
816 | 0 | u16 = htons(d->val.uint16); |
817 | 0 | src = (unsigned char *) &u16; |
818 | 0 | break; |
819 | 0 | case SDP_UINT32: |
820 | 0 | u32 = htonl(d->val.uint32); |
821 | 0 | src = (unsigned char *) &u32; |
822 | 0 | break; |
823 | 0 | case SDP_UINT64: |
824 | 0 | u64 = hton64(d->val.uint64); |
825 | 0 | src = (unsigned char *) &u64; |
826 | 0 | break; |
827 | 0 | case SDP_UINT128: |
828 | 0 | hton128(&d->val.uint128, &u128); |
829 | 0 | src = (unsigned char *) &u128; |
830 | 0 | break; |
831 | 0 | case SDP_INT8: |
832 | 0 | case SDP_BOOL: |
833 | 0 | src = (unsigned char *) &d->val.int8; |
834 | 0 | break; |
835 | 0 | case SDP_INT16: |
836 | 0 | u16 = htons(d->val.int16); |
837 | 0 | src = (unsigned char *) &u16; |
838 | 0 | break; |
839 | 0 | case SDP_INT32: |
840 | 0 | u32 = htonl(d->val.int32); |
841 | 0 | src = (unsigned char *) &u32; |
842 | 0 | break; |
843 | 0 | case SDP_INT64: |
844 | 0 | u64 = hton64(d->val.int64); |
845 | 0 | src = (unsigned char *) &u64; |
846 | 0 | break; |
847 | 0 | case SDP_INT128: |
848 | 0 | hton128(&d->val.int128, &u128); |
849 | 0 | src = (unsigned char *) &u128; |
850 | 0 | break; |
851 | 0 | case SDP_TEXT_STR8: |
852 | 0 | case SDP_TEXT_STR16: |
853 | 0 | case SDP_TEXT_STR32: |
854 | 0 | case SDP_URL_STR8: |
855 | 0 | case SDP_URL_STR16: |
856 | 0 | case SDP_URL_STR32: |
857 | 0 | src = (unsigned char *) d->val.str; |
858 | 0 | sdp_set_seq_len(seqp, data_size); |
859 | 0 | break; |
860 | 0 | case SDP_SEQ8: |
861 | 0 | case SDP_SEQ16: |
862 | 0 | case SDP_SEQ32: |
863 | 0 | is_seq = 1; |
864 | 0 | sdp_set_seq_len(seqp, data_size); |
865 | 0 | break; |
866 | 0 | case SDP_ALT8: |
867 | 0 | case SDP_ALT16: |
868 | 0 | case SDP_ALT32: |
869 | 0 | is_alt = 1; |
870 | 0 | sdp_set_seq_len(seqp, data_size); |
871 | 0 | break; |
872 | 0 | case SDP_UUID16: |
873 | 0 | u16 = htons(d->val.uuid.value.uuid16); |
874 | 0 | src = (unsigned char *) &u16; |
875 | 0 | break; |
876 | 0 | case SDP_UUID32: |
877 | 0 | u32 = htonl(d->val.uuid.value.uuid32); |
878 | 0 | src = (unsigned char *) &u32; |
879 | 0 | break; |
880 | 0 | case SDP_UUID128: |
881 | 0 | src = (unsigned char *) &d->val.uuid.value.uuid128; |
882 | 0 | break; |
883 | 0 | default: |
884 | 0 | break; |
885 | 0 | } |
886 | | |
887 | 0 | if (!is_seq && !is_alt) { |
888 | 0 | if (src && buf->buf_size >= buf->data_size + data_size) { |
889 | 0 | memcpy(buf->data + buf->data_size, src, data_size); |
890 | 0 | buf->data_size += data_size; |
891 | 0 | } else if (d->dtd != SDP_DATA_NIL) { |
892 | 0 | SDPDBG("Gen PDU : Can't copy from invalid source or dest"); |
893 | 0 | } |
894 | 0 | } |
895 | |
|
896 | 0 | pdu_size += data_size; |
897 | |
|
898 | 0 | return pdu_size; |
899 | 0 | } |
900 | | |
901 | | static void sdp_attr_pdu(void *value, void *udata) |
902 | 0 | { |
903 | 0 | sdp_append_to_pdu((sdp_buf_t *)udata, (sdp_data_t *)value); |
904 | 0 | } |
905 | | |
906 | | static void sdp_attr_size(void *value, void *udata) |
907 | 0 | { |
908 | 0 | sdp_gen_buffer((sdp_buf_t *)udata, (sdp_data_t *)value); |
909 | 0 | } |
910 | | |
911 | | int sdp_gen_record_pdu(const sdp_record_t *rec, sdp_buf_t *buf) |
912 | 0 | { |
913 | 0 | memset(buf, 0, sizeof(sdp_buf_t)); |
914 | 0 | sdp_list_foreach(rec->attrlist, sdp_attr_size, buf); |
915 | |
|
916 | 0 | buf->data = bt_malloc0(buf->buf_size); |
917 | 0 | if (!buf->data) |
918 | 0 | return -ENOMEM; |
919 | 0 | buf->data_size = 0; |
920 | |
|
921 | 0 | sdp_list_foreach(rec->attrlist, sdp_attr_pdu, buf); |
922 | |
|
923 | 0 | return 0; |
924 | 0 | } |
925 | | |
926 | | void sdp_attr_replace(sdp_record_t *rec, uint16_t attr, sdp_data_t *d) |
927 | 0 | { |
928 | 0 | sdp_data_t *p; |
929 | |
|
930 | 0 | if (!rec) |
931 | 0 | return; |
932 | | |
933 | 0 | p = sdp_data_get(rec, attr); |
934 | 0 | if (p) { |
935 | 0 | rec->attrlist = sdp_list_remove(rec->attrlist, p); |
936 | 0 | sdp_data_free(p); |
937 | 0 | } |
938 | |
|
939 | 0 | d->attrId = attr; |
940 | 0 | rec->attrlist = sdp_list_insert_sorted(rec->attrlist, d, sdp_attrid_comp_func); |
941 | |
|
942 | 0 | if (attr == SDP_ATTR_SVCLASS_ID_LIST) |
943 | 0 | extract_svclass_uuid(d, &rec->svclass); |
944 | 0 | } |
945 | | |
946 | | int sdp_attrid_comp_func(const void *key1, const void *key2) |
947 | 3 | { |
948 | 3 | const sdp_data_t *d1 = (const sdp_data_t *)key1; |
949 | 3 | const sdp_data_t *d2 = (const sdp_data_t *)key2; |
950 | | |
951 | 3 | if (d1 && d2) |
952 | 3 | return d1->attrId - d2->attrId; |
953 | 0 | return 0; |
954 | 3 | } |
955 | | |
956 | | static void data_seq_free(sdp_data_t *seq) |
957 | 86.1k | { |
958 | 86.1k | sdp_data_t *d = seq->val.dataseq; |
959 | | |
960 | 260k | while (d) { |
961 | 174k | sdp_data_t *next = d->next; |
962 | 174k | sdp_data_free(d); |
963 | 174k | d = next; |
964 | 174k | } |
965 | 86.1k | } |
966 | | |
967 | | void sdp_data_free(sdp_data_t *d) |
968 | 175k | { |
969 | 175k | if (!d) |
970 | 0 | return; |
971 | 175k | switch (d->dtd) { |
972 | 78.9k | case SDP_SEQ8: |
973 | 86.0k | case SDP_SEQ16: |
974 | 86.1k | case SDP_SEQ32: |
975 | 86.1k | data_seq_free(d); |
976 | 86.1k | break; |
977 | 70.6k | case SDP_URL_STR8: |
978 | 70.9k | case SDP_URL_STR16: |
979 | 70.9k | case SDP_URL_STR32: |
980 | 71.0k | case SDP_TEXT_STR8: |
981 | 71.3k | case SDP_TEXT_STR16: |
982 | 71.3k | case SDP_TEXT_STR32: |
983 | 71.3k | free(d->val.str); |
984 | 71.3k | break; |
985 | 175k | } |
986 | 175k | free(d); |
987 | 175k | } |
988 | | |
989 | | int sdp_uuid_extract(const uint8_t *p, int bufsize, uuid_t *uuid, int *scanned) |
990 | 0 | { |
991 | 0 | uint8_t type; |
992 | |
|
993 | 0 | if (bufsize < (int) sizeof(uint8_t)) { |
994 | 0 | SDPERR("Unexpected end of packet"); |
995 | 0 | return -1; |
996 | 0 | } |
997 | | |
998 | 0 | type = *(const uint8_t *) p; |
999 | |
|
1000 | 0 | if (!SDP_IS_UUID(type)) { |
1001 | 0 | SDPERR("Unknown data type : %d expecting a svc UUID", type); |
1002 | 0 | return -1; |
1003 | 0 | } |
1004 | 0 | p += sizeof(uint8_t); |
1005 | 0 | *scanned += sizeof(uint8_t); |
1006 | 0 | bufsize -= sizeof(uint8_t); |
1007 | 0 | if (type == SDP_UUID16) { |
1008 | 0 | if (bufsize < (int) sizeof(uint16_t)) { |
1009 | 0 | SDPERR("Not enough room for 16-bit UUID"); |
1010 | 0 | return -1; |
1011 | 0 | } |
1012 | 0 | sdp_uuid16_create(uuid, bt_get_be16(p)); |
1013 | 0 | *scanned += sizeof(uint16_t); |
1014 | 0 | } else if (type == SDP_UUID32) { |
1015 | 0 | if (bufsize < (int) sizeof(uint32_t)) { |
1016 | 0 | SDPERR("Not enough room for 32-bit UUID"); |
1017 | 0 | return -1; |
1018 | 0 | } |
1019 | 0 | sdp_uuid32_create(uuid, bt_get_be32(p)); |
1020 | 0 | *scanned += sizeof(uint32_t); |
1021 | 0 | } else { |
1022 | 0 | if (bufsize < (int) sizeof(uint128_t)) { |
1023 | 0 | SDPERR("Not enough room for 128-bit UUID"); |
1024 | 0 | return -1; |
1025 | 0 | } |
1026 | 0 | sdp_uuid128_create(uuid, p); |
1027 | 0 | *scanned += sizeof(uint128_t); |
1028 | 0 | } |
1029 | 0 | return 0; |
1030 | 0 | } |
1031 | | |
1032 | | static sdp_data_t *extract_int(const void *p, int bufsize, int *len) |
1033 | 0 | { |
1034 | 0 | sdp_data_t *d; |
1035 | |
|
1036 | 0 | if (bufsize < (int) sizeof(uint8_t)) { |
1037 | 0 | SDPERR("Unexpected end of packet"); |
1038 | 0 | return NULL; |
1039 | 0 | } |
1040 | | |
1041 | 0 | d = bt_malloc0(sizeof(sdp_data_t)); |
1042 | 0 | if (!d) |
1043 | 0 | return NULL; |
1044 | | |
1045 | 0 | SDPDBG("Extracting integer"); |
1046 | 0 | d->dtd = *(uint8_t *) p; |
1047 | 0 | p += sizeof(uint8_t); |
1048 | 0 | *len += sizeof(uint8_t); |
1049 | 0 | bufsize -= sizeof(uint8_t); |
1050 | |
|
1051 | 0 | switch (d->dtd) { |
1052 | 0 | case SDP_DATA_NIL: |
1053 | 0 | break; |
1054 | 0 | case SDP_BOOL: |
1055 | 0 | case SDP_INT8: |
1056 | 0 | case SDP_UINT8: |
1057 | 0 | if (bufsize < (int) sizeof(uint8_t)) { |
1058 | 0 | SDPERR("Unexpected end of packet"); |
1059 | 0 | free(d); |
1060 | 0 | return NULL; |
1061 | 0 | } |
1062 | 0 | *len += sizeof(uint8_t); |
1063 | 0 | d->val.uint8 = *(uint8_t *) p; |
1064 | 0 | break; |
1065 | 0 | case SDP_INT16: |
1066 | 0 | case SDP_UINT16: |
1067 | 0 | if (bufsize < (int) sizeof(uint16_t)) { |
1068 | 0 | SDPERR("Unexpected end of packet"); |
1069 | 0 | free(d); |
1070 | 0 | return NULL; |
1071 | 0 | } |
1072 | 0 | *len += sizeof(uint16_t); |
1073 | 0 | d->val.uint16 = bt_get_be16(p); |
1074 | 0 | break; |
1075 | 0 | case SDP_INT32: |
1076 | 0 | case SDP_UINT32: |
1077 | 0 | if (bufsize < (int) sizeof(uint32_t)) { |
1078 | 0 | SDPERR("Unexpected end of packet"); |
1079 | 0 | free(d); |
1080 | 0 | return NULL; |
1081 | 0 | } |
1082 | 0 | *len += sizeof(uint32_t); |
1083 | 0 | d->val.uint32 = bt_get_be32(p); |
1084 | 0 | break; |
1085 | 0 | case SDP_INT64: |
1086 | 0 | case SDP_UINT64: |
1087 | 0 | if (bufsize < (int) sizeof(uint64_t)) { |
1088 | 0 | SDPERR("Unexpected end of packet"); |
1089 | 0 | free(d); |
1090 | 0 | return NULL; |
1091 | 0 | } |
1092 | 0 | *len += sizeof(uint64_t); |
1093 | 0 | d->val.uint64 = bt_get_be64(p); |
1094 | 0 | break; |
1095 | 0 | case SDP_INT128: |
1096 | 0 | case SDP_UINT128: |
1097 | 0 | if (bufsize < (int) sizeof(uint128_t)) { |
1098 | 0 | SDPERR("Unexpected end of packet"); |
1099 | 0 | free(d); |
1100 | 0 | return NULL; |
1101 | 0 | } |
1102 | 0 | *len += sizeof(uint128_t); |
1103 | 0 | ntoh128((uint128_t *) p, &d->val.uint128); |
1104 | 0 | break; |
1105 | 0 | default: |
1106 | 0 | free(d); |
1107 | 0 | d = NULL; |
1108 | 0 | } |
1109 | 0 | return d; |
1110 | 0 | } |
1111 | | |
1112 | | static sdp_data_t *extract_uuid(const uint8_t *p, int bufsize, int *len, |
1113 | | sdp_record_t *rec) |
1114 | 0 | { |
1115 | 0 | sdp_data_t *d = bt_malloc0(sizeof(sdp_data_t)); |
1116 | |
|
1117 | 0 | if (!d) |
1118 | 0 | return NULL; |
1119 | | |
1120 | 0 | SDPDBG("Extracting UUID"); |
1121 | 0 | if (sdp_uuid_extract(p, bufsize, &d->val.uuid, len) < 0) { |
1122 | 0 | free(d); |
1123 | 0 | return NULL; |
1124 | 0 | } |
1125 | 0 | d->dtd = *p; |
1126 | 0 | if (rec) |
1127 | 0 | sdp_pattern_add_uuid(rec, &d->val.uuid); |
1128 | 0 | return d; |
1129 | 0 | } |
1130 | | |
1131 | | /* |
1132 | | * Extract strings from the PDU (could be service description and similar info) |
1133 | | */ |
1134 | | static sdp_data_t *extract_str(const void *p, int bufsize, int *len) |
1135 | 0 | { |
1136 | 0 | char *s; |
1137 | 0 | int n; |
1138 | 0 | sdp_data_t *d; |
1139 | |
|
1140 | 0 | if (bufsize < (int) sizeof(uint8_t)) { |
1141 | 0 | SDPERR("Unexpected end of packet"); |
1142 | 0 | return NULL; |
1143 | 0 | } |
1144 | | |
1145 | 0 | d = bt_malloc0(sizeof(sdp_data_t)); |
1146 | 0 | if (!d) |
1147 | 0 | return NULL; |
1148 | | |
1149 | 0 | d->dtd = *(uint8_t *) p; |
1150 | 0 | p += sizeof(uint8_t); |
1151 | 0 | *len += sizeof(uint8_t); |
1152 | 0 | bufsize -= sizeof(uint8_t); |
1153 | |
|
1154 | 0 | switch (d->dtd) { |
1155 | 0 | case SDP_TEXT_STR8: |
1156 | 0 | case SDP_URL_STR8: |
1157 | 0 | if (bufsize < (int) sizeof(uint8_t)) { |
1158 | 0 | SDPERR("Unexpected end of packet"); |
1159 | 0 | free(d); |
1160 | 0 | return NULL; |
1161 | 0 | } |
1162 | 0 | n = *(uint8_t *) p; |
1163 | 0 | p += sizeof(uint8_t); |
1164 | 0 | *len += sizeof(uint8_t); |
1165 | 0 | bufsize -= sizeof(uint8_t); |
1166 | 0 | break; |
1167 | 0 | case SDP_TEXT_STR16: |
1168 | 0 | case SDP_URL_STR16: |
1169 | 0 | if (bufsize < (int) sizeof(uint16_t)) { |
1170 | 0 | SDPERR("Unexpected end of packet"); |
1171 | 0 | free(d); |
1172 | 0 | return NULL; |
1173 | 0 | } |
1174 | 0 | n = bt_get_be16(p); |
1175 | 0 | p += sizeof(uint16_t); |
1176 | 0 | *len += sizeof(uint16_t); |
1177 | 0 | bufsize -= sizeof(uint16_t); |
1178 | 0 | break; |
1179 | 0 | default: |
1180 | 0 | SDPERR("Sizeof text string > UINT16_MAX"); |
1181 | 0 | free(d); |
1182 | 0 | return NULL; |
1183 | 0 | } |
1184 | | |
1185 | 0 | if (bufsize < n) { |
1186 | 0 | SDPERR("String too long to fit in packet"); |
1187 | 0 | free(d); |
1188 | 0 | return NULL; |
1189 | 0 | } |
1190 | | |
1191 | 0 | s = bt_malloc0(n + 1); |
1192 | 0 | if (!s) { |
1193 | 0 | SDPERR("Not enough memory for incoming string"); |
1194 | 0 | free(d); |
1195 | 0 | return NULL; |
1196 | 0 | } |
1197 | 0 | memcpy(s, p, n); |
1198 | |
|
1199 | 0 | *len += n; |
1200 | |
|
1201 | 0 | SDPDBG("Len : %d", n); |
1202 | 0 | SDPDBG("Str : %s", s); |
1203 | |
|
1204 | 0 | d->val.str = s; |
1205 | 0 | d->unitSize = n + sizeof(uint8_t); |
1206 | 0 | return d; |
1207 | 0 | } |
1208 | | |
1209 | | /* |
1210 | | * Extract the sequence type and its length, and return offset into buf |
1211 | | * or 0 on failure. |
1212 | | */ |
1213 | | int sdp_extract_seqtype(const uint8_t *buf, int bufsize, uint8_t *dtdp, int *size) |
1214 | 0 | { |
1215 | 0 | uint8_t dtd; |
1216 | 0 | int scanned = sizeof(uint8_t); |
1217 | |
|
1218 | 0 | if (bufsize < (int) sizeof(uint8_t)) { |
1219 | 0 | SDPERR("Unexpected end of packet"); |
1220 | 0 | return 0; |
1221 | 0 | } |
1222 | | |
1223 | 0 | dtd = *(uint8_t *) buf; |
1224 | 0 | buf += sizeof(uint8_t); |
1225 | 0 | bufsize -= sizeof(uint8_t); |
1226 | 0 | *dtdp = dtd; |
1227 | 0 | switch (dtd) { |
1228 | 0 | case SDP_SEQ8: |
1229 | 0 | case SDP_ALT8: |
1230 | 0 | if (bufsize < (int) sizeof(uint8_t)) { |
1231 | 0 | SDPERR("Unexpected end of packet"); |
1232 | 0 | return 0; |
1233 | 0 | } |
1234 | 0 | *size = *(uint8_t *) buf; |
1235 | 0 | scanned += sizeof(uint8_t); |
1236 | 0 | break; |
1237 | 0 | case SDP_SEQ16: |
1238 | 0 | case SDP_ALT16: |
1239 | 0 | if (bufsize < (int) sizeof(uint16_t)) { |
1240 | 0 | SDPERR("Unexpected end of packet"); |
1241 | 0 | return 0; |
1242 | 0 | } |
1243 | 0 | *size = bt_get_be16(buf); |
1244 | 0 | scanned += sizeof(uint16_t); |
1245 | 0 | break; |
1246 | 0 | case SDP_SEQ32: |
1247 | 0 | case SDP_ALT32: |
1248 | 0 | if (bufsize < (int) sizeof(uint32_t)) { |
1249 | 0 | SDPERR("Unexpected end of packet"); |
1250 | 0 | return 0; |
1251 | 0 | } |
1252 | 0 | *size = bt_get_be32(buf); |
1253 | 0 | scanned += sizeof(uint32_t); |
1254 | 0 | break; |
1255 | 0 | default: |
1256 | 0 | SDPERR("Unknown sequence type, aborting"); |
1257 | 0 | return 0; |
1258 | 0 | } |
1259 | 0 | return scanned; |
1260 | 0 | } |
1261 | | |
1262 | | static sdp_data_t *extract_seq(const void *p, int bufsize, int *len, |
1263 | | sdp_record_t *rec) |
1264 | 0 | { |
1265 | 0 | int seqlen, n = 0; |
1266 | 0 | sdp_data_t *curr, *prev; |
1267 | 0 | sdp_data_t *d = bt_malloc0(sizeof(sdp_data_t)); |
1268 | |
|
1269 | 0 | if (!d) |
1270 | 0 | return NULL; |
1271 | | |
1272 | 0 | SDPDBG("Extracting SEQ"); |
1273 | 0 | *len = sdp_extract_seqtype(p, bufsize, &d->dtd, &seqlen); |
1274 | 0 | SDPDBG("Sequence Type : 0x%x length : 0x%x", d->dtd, seqlen); |
1275 | |
|
1276 | 0 | if (*len == 0) |
1277 | 0 | return d; |
1278 | | |
1279 | 0 | if (*len > bufsize) { |
1280 | 0 | SDPERR("Packet not big enough to hold sequence."); |
1281 | 0 | free(d); |
1282 | 0 | return NULL; |
1283 | 0 | } |
1284 | | |
1285 | 0 | p += *len; |
1286 | 0 | bufsize -= *len; |
1287 | 0 | prev = NULL; |
1288 | 0 | while (n < seqlen) { |
1289 | 0 | int attrlen = 0; |
1290 | 0 | curr = sdp_extract_attr(p, bufsize, &attrlen, rec); |
1291 | 0 | if (curr == NULL) |
1292 | 0 | break; |
1293 | | |
1294 | 0 | if (prev) |
1295 | 0 | prev->next = curr; |
1296 | 0 | else |
1297 | 0 | d->val.dataseq = curr; |
1298 | 0 | prev = curr; |
1299 | 0 | p += attrlen; |
1300 | 0 | n += attrlen; |
1301 | 0 | bufsize -= attrlen; |
1302 | |
|
1303 | 0 | SDPDBG("Extracted: %d SequenceLength: %d", n, seqlen); |
1304 | 0 | } |
1305 | |
|
1306 | 0 | *len += n; |
1307 | 0 | return d; |
1308 | 0 | } |
1309 | | |
1310 | | sdp_data_t *sdp_extract_attr(const uint8_t *p, int bufsize, int *size, |
1311 | | sdp_record_t *rec) |
1312 | 0 | { |
1313 | 0 | sdp_data_t *elem; |
1314 | 0 | int n = 0; |
1315 | 0 | uint8_t dtd; |
1316 | |
|
1317 | 0 | if (bufsize < (int) sizeof(uint8_t)) { |
1318 | 0 | SDPERR("Unexpected end of packet"); |
1319 | 0 | return NULL; |
1320 | 0 | } |
1321 | | |
1322 | 0 | dtd = *(const uint8_t *)p; |
1323 | |
|
1324 | 0 | SDPDBG("extract_attr: dtd=0x%x", dtd); |
1325 | 0 | switch (dtd) { |
1326 | 0 | case SDP_DATA_NIL: |
1327 | 0 | case SDP_BOOL: |
1328 | 0 | case SDP_UINT8: |
1329 | 0 | case SDP_UINT16: |
1330 | 0 | case SDP_UINT32: |
1331 | 0 | case SDP_UINT64: |
1332 | 0 | case SDP_UINT128: |
1333 | 0 | case SDP_INT8: |
1334 | 0 | case SDP_INT16: |
1335 | 0 | case SDP_INT32: |
1336 | 0 | case SDP_INT64: |
1337 | 0 | case SDP_INT128: |
1338 | 0 | elem = extract_int(p, bufsize, &n); |
1339 | 0 | break; |
1340 | 0 | case SDP_UUID16: |
1341 | 0 | case SDP_UUID32: |
1342 | 0 | case SDP_UUID128: |
1343 | 0 | elem = extract_uuid(p, bufsize, &n, rec); |
1344 | 0 | break; |
1345 | 0 | case SDP_TEXT_STR8: |
1346 | 0 | case SDP_TEXT_STR16: |
1347 | 0 | case SDP_TEXT_STR32: |
1348 | 0 | case SDP_URL_STR8: |
1349 | 0 | case SDP_URL_STR16: |
1350 | 0 | case SDP_URL_STR32: |
1351 | 0 | elem = extract_str(p, bufsize, &n); |
1352 | 0 | break; |
1353 | 0 | case SDP_SEQ8: |
1354 | 0 | case SDP_SEQ16: |
1355 | 0 | case SDP_SEQ32: |
1356 | 0 | case SDP_ALT8: |
1357 | 0 | case SDP_ALT16: |
1358 | 0 | case SDP_ALT32: |
1359 | 0 | elem = extract_seq(p, bufsize, &n, rec); |
1360 | 0 | break; |
1361 | 0 | default: |
1362 | 0 | SDPERR("Unknown data descriptor : 0x%x terminating", dtd); |
1363 | 0 | return NULL; |
1364 | 0 | } |
1365 | 0 | *size += n; |
1366 | 0 | return elem; |
1367 | 0 | } |
1368 | | |
1369 | | #ifdef SDP_DEBUG |
1370 | | static void attr_print_func(void *value, void *userData) |
1371 | | { |
1372 | | sdp_data_t *d = (sdp_data_t *)value; |
1373 | | |
1374 | | SDPDBG("====================================="); |
1375 | | SDPDBG("ATTRIBUTE IDENTIFIER : 0x%x", d->attrId); |
1376 | | SDPDBG("ATTRIBUTE VALUE PTR : %p", value); |
1377 | | if (d) |
1378 | | sdp_data_print(d); |
1379 | | else |
1380 | | SDPDBG("NULL value"); |
1381 | | SDPDBG("====================================="); |
1382 | | } |
1383 | | |
1384 | | void sdp_print_service_attr(sdp_list_t *svcAttrList) |
1385 | | { |
1386 | | SDPDBG("Printing service attr list %p", svcAttrList); |
1387 | | sdp_list_foreach(svcAttrList, attr_print_func, NULL); |
1388 | | SDPDBG("Printed service attr list %p", svcAttrList); |
1389 | | } |
1390 | | #endif |
1391 | | |
1392 | | sdp_record_t *sdp_extract_pdu(const uint8_t *buf, int bufsize, int *scanned) |
1393 | 0 | { |
1394 | 0 | int extracted = 0, seqlen = 0; |
1395 | 0 | uint8_t dtd; |
1396 | 0 | uint16_t attr; |
1397 | 0 | sdp_record_t *rec = sdp_record_alloc(); |
1398 | 0 | const uint8_t *p = buf; |
1399 | |
|
1400 | 0 | *scanned = sdp_extract_seqtype(buf, bufsize, &dtd, &seqlen); |
1401 | 0 | p += *scanned; |
1402 | 0 | bufsize -= *scanned; |
1403 | 0 | rec->attrlist = NULL; |
1404 | |
|
1405 | 0 | while (extracted < seqlen && bufsize > 0) { |
1406 | 0 | int n = sizeof(uint8_t), attrlen = 0; |
1407 | 0 | sdp_data_t *data = NULL; |
1408 | |
|
1409 | 0 | SDPDBG("Extract PDU, sequenceLength: %d localExtractedLength: %d", |
1410 | 0 | seqlen, extracted); |
1411 | |
|
1412 | 0 | if (bufsize < n + (int) sizeof(uint16_t)) { |
1413 | 0 | SDPERR("Unexpected end of packet"); |
1414 | 0 | break; |
1415 | 0 | } |
1416 | | |
1417 | 0 | dtd = *(uint8_t *) p; |
1418 | 0 | attr = bt_get_be16(p + n); |
1419 | 0 | n += sizeof(uint16_t); |
1420 | |
|
1421 | 0 | SDPDBG("DTD of attrId : %d Attr id : 0x%x ", dtd, attr); |
1422 | |
|
1423 | 0 | data = sdp_extract_attr(p + n, bufsize - n, &attrlen, rec); |
1424 | |
|
1425 | 0 | SDPDBG("Attr id : 0x%x attrValueLength : %d", attr, attrlen); |
1426 | |
|
1427 | 0 | n += attrlen; |
1428 | 0 | if (data == NULL) { |
1429 | 0 | SDPDBG("Terminating extraction of attributes"); |
1430 | 0 | break; |
1431 | 0 | } |
1432 | | |
1433 | 0 | if (attr == SDP_ATTR_RECORD_HANDLE) |
1434 | 0 | rec->handle = data->val.uint32; |
1435 | |
|
1436 | 0 | if (attr == SDP_ATTR_SVCLASS_ID_LIST) |
1437 | 0 | extract_svclass_uuid(data, &rec->svclass); |
1438 | |
|
1439 | 0 | extracted += n; |
1440 | 0 | p += n; |
1441 | 0 | bufsize -= n; |
1442 | 0 | sdp_attr_replace(rec, attr, data); |
1443 | |
|
1444 | 0 | SDPDBG("Extract PDU, seqLength: %d localExtractedLength: %d", |
1445 | 0 | seqlen, extracted); |
1446 | 0 | } |
1447 | | #ifdef SDP_DEBUG |
1448 | | SDPDBG("Successful extracting of Svc Rec attributes"); |
1449 | | sdp_print_service_attr(rec->attrlist); |
1450 | | #endif |
1451 | 0 | *scanned += seqlen; |
1452 | 0 | return rec; |
1453 | 0 | } |
1454 | | |
1455 | | static void sdp_copy_pattern(void *value, void *udata) |
1456 | 0 | { |
1457 | 0 | uuid_t *uuid = value; |
1458 | 0 | sdp_record_t *rec = udata; |
1459 | |
|
1460 | 0 | sdp_pattern_add_uuid(rec, uuid); |
1461 | 0 | } |
1462 | | |
1463 | | static void *sdp_data_value(sdp_data_t *data, uint32_t *len) |
1464 | 0 | { |
1465 | 0 | void *val = NULL; |
1466 | |
|
1467 | 0 | switch (data->dtd) { |
1468 | 0 | case SDP_DATA_NIL: |
1469 | 0 | break; |
1470 | 0 | case SDP_UINT8: |
1471 | 0 | val = &data->val.uint8; |
1472 | 0 | break; |
1473 | 0 | case SDP_INT8: |
1474 | 0 | case SDP_BOOL: |
1475 | 0 | val = &data->val.int8; |
1476 | 0 | break; |
1477 | 0 | case SDP_UINT16: |
1478 | 0 | val = &data->val.uint16; |
1479 | 0 | break; |
1480 | 0 | case SDP_INT16: |
1481 | 0 | val = &data->val.int16; |
1482 | 0 | break; |
1483 | 0 | case SDP_UINT32: |
1484 | 0 | val = &data->val.uint32; |
1485 | 0 | break; |
1486 | 0 | case SDP_INT32: |
1487 | 0 | val = &data->val.int32; |
1488 | 0 | break; |
1489 | 0 | case SDP_INT64: |
1490 | 0 | val = &data->val.int64; |
1491 | 0 | break; |
1492 | 0 | case SDP_UINT64: |
1493 | 0 | val = &data->val.uint64; |
1494 | 0 | break; |
1495 | 0 | case SDP_UINT128: |
1496 | 0 | val = &data->val.uint128; |
1497 | 0 | break; |
1498 | 0 | case SDP_INT128: |
1499 | 0 | val = &data->val.int128; |
1500 | 0 | break; |
1501 | 0 | case SDP_UUID16: |
1502 | 0 | val = &data->val.uuid.value.uuid16; |
1503 | 0 | break; |
1504 | 0 | case SDP_UUID32: |
1505 | 0 | val = &data->val.uuid.value.uuid32; |
1506 | 0 | break; |
1507 | 0 | case SDP_UUID128: |
1508 | 0 | val = &data->val.uuid.value.uuid128; |
1509 | 0 | break; |
1510 | 0 | case SDP_URL_STR8: |
1511 | 0 | case SDP_URL_STR16: |
1512 | 0 | case SDP_TEXT_STR8: |
1513 | 0 | case SDP_TEXT_STR16: |
1514 | 0 | case SDP_URL_STR32: |
1515 | 0 | case SDP_TEXT_STR32: |
1516 | 0 | val = data->val.str; |
1517 | 0 | if (len) |
1518 | 0 | *len = data->unitSize - sizeof(uint8_t); |
1519 | 0 | break; |
1520 | 0 | case SDP_ALT8: |
1521 | 0 | case SDP_ALT16: |
1522 | 0 | case SDP_ALT32: |
1523 | 0 | case SDP_SEQ8: |
1524 | 0 | case SDP_SEQ16: |
1525 | 0 | case SDP_SEQ32: |
1526 | 0 | val = sdp_copy_seq(data->val.dataseq); |
1527 | 0 | break; |
1528 | 0 | } |
1529 | | |
1530 | 0 | return val; |
1531 | 0 | } |
1532 | | |
1533 | | static sdp_data_t *sdp_copy_seq(sdp_data_t *data) |
1534 | 0 | { |
1535 | 0 | sdp_data_t *tmp, *seq = NULL, *cur = NULL; |
1536 | |
|
1537 | 0 | for (tmp = data; tmp; tmp = tmp->next) { |
1538 | 0 | sdp_data_t *datatmp; |
1539 | 0 | void *value; |
1540 | 0 | uint32_t len = 0; |
1541 | |
|
1542 | 0 | value = sdp_data_value(tmp, &len); |
1543 | 0 | datatmp = sdp_data_alloc_with_length(tmp->dtd, value, len); |
1544 | |
|
1545 | 0 | if (!datatmp) { |
1546 | 0 | sdp_data_free(seq); |
1547 | 0 | return NULL; |
1548 | 0 | } |
1549 | | |
1550 | 0 | if (cur) |
1551 | 0 | cur->next = datatmp; |
1552 | 0 | else |
1553 | 0 | seq = datatmp; |
1554 | |
|
1555 | 0 | cur = datatmp; |
1556 | 0 | } |
1557 | | |
1558 | 0 | return seq; |
1559 | 0 | } |
1560 | | |
1561 | | static void sdp_copy_attrlist(void *value, void *udata) |
1562 | 0 | { |
1563 | 0 | sdp_data_t *data = value; |
1564 | 0 | sdp_record_t *rec = udata; |
1565 | 0 | void *val; |
1566 | 0 | uint32_t len = 0; |
1567 | |
|
1568 | 0 | val = sdp_data_value(data, &len); |
1569 | |
|
1570 | 0 | if (!len) |
1571 | 0 | sdp_attr_add_new(rec, data->attrId, data->dtd, val); |
1572 | 0 | else |
1573 | 0 | sdp_attr_add_new_with_length(rec, data->attrId, |
1574 | 0 | data->dtd, val, len); |
1575 | 0 | } |
1576 | | |
1577 | | sdp_record_t *sdp_copy_record(sdp_record_t *rec) |
1578 | 0 | { |
1579 | 0 | sdp_record_t *cpy; |
1580 | |
|
1581 | 0 | cpy = sdp_record_alloc(); |
1582 | |
|
1583 | 0 | cpy->handle = rec->handle; |
1584 | |
|
1585 | 0 | sdp_list_foreach(rec->pattern, sdp_copy_pattern, cpy); |
1586 | 0 | sdp_list_foreach(rec->attrlist, sdp_copy_attrlist, cpy); |
1587 | |
|
1588 | 0 | cpy->svclass = rec->svclass; |
1589 | |
|
1590 | 0 | return cpy; |
1591 | 0 | } |
1592 | | |
1593 | | #ifdef SDP_DEBUG |
1594 | | static void print_dataseq(sdp_data_t *p) |
1595 | | { |
1596 | | sdp_data_t *d; |
1597 | | |
1598 | | for (d = p; d; d = d->next) |
1599 | | sdp_data_print(d); |
1600 | | } |
1601 | | #endif |
1602 | | |
1603 | | void sdp_record_print(const sdp_record_t *rec) |
1604 | 0 | { |
1605 | 0 | sdp_data_t *d = sdp_data_get(rec, SDP_ATTR_SVCNAME_PRIMARY); |
1606 | 0 | if (d && SDP_IS_TEXT_STR(d->dtd)) |
1607 | 0 | printf("Service Name: %.*s\n", d->unitSize, d->val.str); |
1608 | 0 | d = sdp_data_get(rec, SDP_ATTR_SVCDESC_PRIMARY); |
1609 | 0 | if (d && SDP_IS_TEXT_STR(d->dtd)) |
1610 | 0 | printf("Service Description: %.*s\n", d->unitSize, d->val.str); |
1611 | 0 | d = sdp_data_get(rec, SDP_ATTR_PROVNAME_PRIMARY); |
1612 | 0 | if (d && SDP_IS_TEXT_STR(d->dtd)) |
1613 | 0 | printf("Service Provider: %.*s\n", d->unitSize, d->val.str); |
1614 | 0 | } |
1615 | | |
1616 | | #ifdef SDP_DEBUG |
1617 | | void sdp_data_print(sdp_data_t *d) |
1618 | | { |
1619 | | switch (d->dtd) { |
1620 | | case SDP_DATA_NIL: |
1621 | | SDPDBG("NIL"); |
1622 | | break; |
1623 | | case SDP_BOOL: |
1624 | | case SDP_UINT8: |
1625 | | case SDP_UINT16: |
1626 | | case SDP_UINT32: |
1627 | | case SDP_UINT64: |
1628 | | case SDP_UINT128: |
1629 | | case SDP_INT8: |
1630 | | case SDP_INT16: |
1631 | | case SDP_INT32: |
1632 | | case SDP_INT64: |
1633 | | case SDP_INT128: |
1634 | | SDPDBG("Integer : 0x%x", d->val.uint32); |
1635 | | break; |
1636 | | case SDP_UUID16: |
1637 | | case SDP_UUID32: |
1638 | | case SDP_UUID128: |
1639 | | SDPDBG("UUID"); |
1640 | | sdp_uuid_print(&d->val.uuid); |
1641 | | break; |
1642 | | case SDP_TEXT_STR8: |
1643 | | case SDP_TEXT_STR16: |
1644 | | case SDP_TEXT_STR32: |
1645 | | SDPDBG("Text : %s", d->val.str); |
1646 | | break; |
1647 | | case SDP_URL_STR8: |
1648 | | case SDP_URL_STR16: |
1649 | | case SDP_URL_STR32: |
1650 | | SDPDBG("URL : %s", d->val.str); |
1651 | | break; |
1652 | | case SDP_SEQ8: |
1653 | | case SDP_SEQ16: |
1654 | | case SDP_SEQ32: |
1655 | | print_dataseq(d->val.dataseq); |
1656 | | break; |
1657 | | case SDP_ALT8: |
1658 | | case SDP_ALT16: |
1659 | | case SDP_ALT32: |
1660 | | SDPDBG("Data Sequence Alternates"); |
1661 | | print_dataseq(d->val.dataseq); |
1662 | | break; |
1663 | | } |
1664 | | } |
1665 | | #endif |
1666 | | |
1667 | | sdp_data_t *sdp_data_get(const sdp_record_t *rec, uint16_t attrId) |
1668 | 67 | { |
1669 | 67 | if (rec && rec->attrlist) { |
1670 | 3 | sdp_data_t sdpTemplate; |
1671 | 3 | sdp_list_t *p; |
1672 | | |
1673 | 3 | sdpTemplate.attrId = attrId; |
1674 | 3 | p = sdp_list_find(rec->attrlist, &sdpTemplate, sdp_attrid_comp_func); |
1675 | 3 | if (p) |
1676 | 3 | return p->data; |
1677 | 3 | } |
1678 | 64 | return NULL; |
1679 | 67 | } |
1680 | | |
1681 | | static int sdp_send_req(sdp_session_t *session, uint8_t *buf, uint32_t size) |
1682 | 0 | { |
1683 | 0 | uint32_t sent = 0; |
1684 | |
|
1685 | 0 | while (sent < size) { |
1686 | 0 | int n = send(session->sock, buf + sent, size - sent, 0); |
1687 | 0 | if (n < 0) |
1688 | 0 | return -1; |
1689 | 0 | sent += n; |
1690 | 0 | } |
1691 | 0 | return 0; |
1692 | 0 | } |
1693 | | |
1694 | | static int sdp_read_rsp(sdp_session_t *session, uint8_t *buf, uint32_t size) |
1695 | 0 | { |
1696 | 0 | fd_set readFds; |
1697 | 0 | struct timeval timeout = { SDP_RESPONSE_TIMEOUT, 0 }; |
1698 | |
|
1699 | 0 | FD_ZERO(&readFds); |
1700 | 0 | FD_SET(session->sock, &readFds); |
1701 | 0 | SDPDBG("Waiting for response"); |
1702 | 0 | if (select(session->sock + 1, &readFds, NULL, NULL, &timeout) == 0) { |
1703 | 0 | SDPERR("Client timed out"); |
1704 | 0 | errno = ETIMEDOUT; |
1705 | 0 | return -1; |
1706 | 0 | } |
1707 | 0 | return recv(session->sock, buf, size, 0); |
1708 | 0 | } |
1709 | | |
1710 | | /* |
1711 | | * generic send request, wait for response method. |
1712 | | */ |
1713 | | int sdp_send_req_w4_rsp(sdp_session_t *session, uint8_t *reqbuf, |
1714 | | uint8_t *rspbuf, uint32_t reqsize, uint32_t *rspsize) |
1715 | 0 | { |
1716 | 0 | int n; |
1717 | 0 | sdp_pdu_hdr_t *reqhdr = (sdp_pdu_hdr_t *) reqbuf; |
1718 | 0 | sdp_pdu_hdr_t *rsphdr = (sdp_pdu_hdr_t *) rspbuf; |
1719 | |
|
1720 | 0 | SDPDBG(""); |
1721 | 0 | if (0 > sdp_send_req(session, reqbuf, reqsize)) { |
1722 | 0 | SDPERR("Error sending data:%m"); |
1723 | 0 | return -1; |
1724 | 0 | } |
1725 | 0 | n = sdp_read_rsp(session, rspbuf, SDP_RSP_BUFFER_SIZE); |
1726 | 0 | if (0 > n) |
1727 | 0 | return -1; |
1728 | 0 | SDPDBG("Read : %d", n); |
1729 | 0 | if (n == 0 || reqhdr->tid != rsphdr->tid) { |
1730 | 0 | errno = EPROTO; |
1731 | 0 | return -1; |
1732 | 0 | } |
1733 | 0 | *rspsize = n; |
1734 | 0 | return 0; |
1735 | 0 | } |
1736 | | |
1737 | | /* |
1738 | | * singly-linked lists (after openobex implementation) |
1739 | | */ |
1740 | | sdp_list_t *sdp_list_append(sdp_list_t *p, void *d) |
1741 | 0 | { |
1742 | 0 | sdp_list_t *q, *n = malloc(sizeof(sdp_list_t)); |
1743 | |
|
1744 | 0 | if (!n) |
1745 | 0 | return NULL; |
1746 | | |
1747 | 0 | n->data = d; |
1748 | 0 | n->next = 0; |
1749 | |
|
1750 | 0 | if (!p) |
1751 | 0 | return n; |
1752 | | |
1753 | 0 | for (q = p; q->next; q = q->next); |
1754 | 0 | q->next = n; |
1755 | |
|
1756 | 0 | return p; |
1757 | 0 | } |
1758 | | |
1759 | | sdp_list_t *sdp_list_remove(sdp_list_t *list, void *d) |
1760 | 0 | { |
1761 | 0 | sdp_list_t *p, *q; |
1762 | |
|
1763 | 0 | for (q = 0, p = list; p; q = p, p = p->next) |
1764 | 0 | if (p->data == d) { |
1765 | 0 | if (q) |
1766 | 0 | q->next = p->next; |
1767 | 0 | else |
1768 | 0 | list = p->next; |
1769 | 0 | free(p); |
1770 | 0 | break; |
1771 | 0 | } |
1772 | |
|
1773 | 0 | return list; |
1774 | 0 | } |
1775 | | |
1776 | | sdp_list_t *sdp_list_insert_sorted(sdp_list_t *list, void *d, |
1777 | | sdp_comp_func_t f) |
1778 | 90 | { |
1779 | 90 | sdp_list_t *q, *p, *n; |
1780 | | |
1781 | 90 | n = malloc(sizeof(sdp_list_t)); |
1782 | 90 | if (!n) |
1783 | 0 | return NULL; |
1784 | 90 | n->data = d; |
1785 | 177 | for (q = 0, p = list; p; q = p, p = p->next) |
1786 | 105 | if (f(p->data, d) >= 0) |
1787 | 18 | break; |
1788 | | /* insert between q and p; if !q insert at head */ |
1789 | 90 | if (q) |
1790 | 20 | q->next = n; |
1791 | 70 | else |
1792 | 70 | list = n; |
1793 | 90 | n->next = p; |
1794 | 90 | return list; |
1795 | 90 | } |
1796 | | |
1797 | | /* |
1798 | | * Every element of the list points to things which need |
1799 | | * to be free()'d. This method frees the list's contents |
1800 | | */ |
1801 | | void sdp_list_free(sdp_list_t *list, sdp_free_func_t f) |
1802 | 298 | { |
1803 | 298 | sdp_list_t *next; |
1804 | 388 | while (list) { |
1805 | 90 | next = list->next; |
1806 | 90 | if (f) |
1807 | 90 | f(list->data); |
1808 | 90 | free(list); |
1809 | 90 | list = next; |
1810 | 90 | } |
1811 | 298 | } |
1812 | | |
1813 | | static inline int __find_port(sdp_data_t *seq, int proto) |
1814 | 0 | { |
1815 | 0 | if (!seq || !seq->next) |
1816 | 0 | return 0; |
1817 | | |
1818 | 0 | if (SDP_IS_UUID(seq->dtd) && sdp_uuid_to_proto(&seq->val.uuid) == proto) { |
1819 | 0 | seq = seq->next; |
1820 | 0 | switch (seq->dtd) { |
1821 | 0 | case SDP_UINT8: |
1822 | 0 | return seq->val.uint8; |
1823 | 0 | case SDP_UINT16: |
1824 | 0 | return seq->val.uint16; |
1825 | 0 | } |
1826 | 0 | } |
1827 | 0 | return 0; |
1828 | 0 | } |
1829 | | |
1830 | | int sdp_get_proto_port(const sdp_list_t *list, int proto) |
1831 | 0 | { |
1832 | 0 | if (proto != L2CAP_UUID && proto != RFCOMM_UUID) { |
1833 | 0 | errno = EINVAL; |
1834 | 0 | return -1; |
1835 | 0 | } |
1836 | | |
1837 | 0 | for (; list; list = list->next) { |
1838 | 0 | sdp_list_t *p; |
1839 | 0 | for (p = list->data; p; p = p->next) { |
1840 | 0 | sdp_data_t *seq = p->data; |
1841 | 0 | int port = __find_port(seq, proto); |
1842 | 0 | if (port) |
1843 | 0 | return port; |
1844 | 0 | } |
1845 | 0 | } |
1846 | 0 | return 0; |
1847 | 0 | } |
1848 | | |
1849 | | sdp_data_t *sdp_get_proto_desc(sdp_list_t *list, int proto) |
1850 | 0 | { |
1851 | 0 | for (; list; list = list->next) { |
1852 | 0 | sdp_list_t *p; |
1853 | 0 | for (p = list->data; p; p = p->next) { |
1854 | 0 | sdp_data_t *seq = p->data; |
1855 | 0 | if (SDP_IS_UUID(seq->dtd) && |
1856 | 0 | sdp_uuid_to_proto(&seq->val.uuid) == proto) |
1857 | 0 | return seq->next; |
1858 | 0 | } |
1859 | 0 | } |
1860 | 0 | return NULL; |
1861 | 0 | } |
1862 | | |
1863 | | static int sdp_get_proto_descs(uint16_t attr_id, const sdp_record_t *rec, |
1864 | | sdp_list_t **pap) |
1865 | 0 | { |
1866 | 0 | sdp_data_t *pdlist, *curr; |
1867 | 0 | sdp_list_t *ap = NULL; |
1868 | |
|
1869 | 0 | pdlist = sdp_data_get(rec, attr_id); |
1870 | 0 | if (pdlist == NULL) { |
1871 | 0 | errno = ENODATA; |
1872 | 0 | return -1; |
1873 | 0 | } |
1874 | | |
1875 | 0 | SDPDBG("Attribute value type: 0x%02x", pdlist->dtd); |
1876 | |
|
1877 | 0 | if (attr_id == SDP_ATTR_ADD_PROTO_DESC_LIST) { |
1878 | 0 | if (!SDP_IS_SEQ(pdlist->dtd)) { |
1879 | 0 | errno = EINVAL; |
1880 | 0 | return -1; |
1881 | 0 | } |
1882 | 0 | pdlist = pdlist->val.dataseq; |
1883 | 0 | } |
1884 | | |
1885 | 0 | for (; pdlist; pdlist = pdlist->next) { |
1886 | 0 | sdp_list_t *pds = NULL; |
1887 | |
|
1888 | 0 | if (!SDP_IS_SEQ(pdlist->dtd) && !SDP_IS_ALT(pdlist->dtd)) |
1889 | 0 | goto failed; |
1890 | | |
1891 | 0 | for (curr = pdlist->val.dataseq; curr; curr = curr->next) { |
1892 | 0 | if (!SDP_IS_SEQ(curr->dtd)) { |
1893 | 0 | sdp_list_free(pds, NULL); |
1894 | 0 | goto failed; |
1895 | 0 | } |
1896 | 0 | pds = sdp_list_append(pds, curr->val.dataseq); |
1897 | 0 | } |
1898 | | |
1899 | 0 | ap = sdp_list_append(ap, pds); |
1900 | 0 | } |
1901 | | |
1902 | 0 | *pap = ap; |
1903 | |
|
1904 | 0 | return 0; |
1905 | | |
1906 | 0 | failed: |
1907 | 0 | sdp_list_foreach(ap, (sdp_list_func_t) sdp_list_free, NULL); |
1908 | 0 | sdp_list_free(ap, NULL); |
1909 | 0 | errno = EINVAL; |
1910 | |
|
1911 | 0 | return -1; |
1912 | 0 | } |
1913 | | |
1914 | | int sdp_get_access_protos(const sdp_record_t *rec, sdp_list_t **pap) |
1915 | 0 | { |
1916 | 0 | return sdp_get_proto_descs(SDP_ATTR_PROTO_DESC_LIST, rec, pap); |
1917 | 0 | } |
1918 | | |
1919 | | int sdp_get_add_access_protos(const sdp_record_t *rec, sdp_list_t **pap) |
1920 | 0 | { |
1921 | 0 | return sdp_get_proto_descs(SDP_ATTR_ADD_PROTO_DESC_LIST, rec, pap); |
1922 | 0 | } |
1923 | | |
1924 | | int sdp_get_uuidseq_attr(const sdp_record_t *rec, uint16_t attr, |
1925 | | sdp_list_t **seqp) |
1926 | 0 | { |
1927 | 0 | sdp_data_t *sdpdata = sdp_data_get(rec, attr); |
1928 | |
|
1929 | 0 | *seqp = NULL; |
1930 | 0 | if (sdpdata && SDP_IS_SEQ(sdpdata->dtd)) { |
1931 | 0 | sdp_data_t *d; |
1932 | 0 | for (d = sdpdata->val.dataseq; d; d = d->next) { |
1933 | 0 | uuid_t *u; |
1934 | 0 | if (d->dtd < SDP_UUID16 || d->dtd > SDP_UUID128) { |
1935 | 0 | errno = EINVAL; |
1936 | 0 | goto fail; |
1937 | 0 | } |
1938 | | |
1939 | 0 | u = malloc(sizeof(uuid_t)); |
1940 | 0 | if (!u) |
1941 | 0 | goto fail; |
1942 | | |
1943 | 0 | *u = d->val.uuid; |
1944 | 0 | *seqp = sdp_list_append(*seqp, u); |
1945 | 0 | } |
1946 | 0 | return 0; |
1947 | 0 | } |
1948 | 0 | fail: |
1949 | 0 | sdp_list_free(*seqp, free); |
1950 | 0 | *seqp = NULL; |
1951 | 0 | return -1; |
1952 | 0 | } |
1953 | | |
1954 | | int sdp_set_uuidseq_attr(sdp_record_t *rec, uint16_t aid, sdp_list_t *seq) |
1955 | 0 | { |
1956 | 0 | int status = 0, i, len; |
1957 | 0 | void **dtds, **values; |
1958 | 0 | uint8_t uuid16 = SDP_UUID16; |
1959 | 0 | uint8_t uuid32 = SDP_UUID32; |
1960 | 0 | uint8_t uuid128 = SDP_UUID128; |
1961 | 0 | sdp_list_t *p; |
1962 | |
|
1963 | 0 | len = sdp_list_len(seq); |
1964 | 0 | if (!seq || len == 0) |
1965 | 0 | return -1; |
1966 | 0 | dtds = malloc(len * sizeof(void *)); |
1967 | 0 | if (!dtds) |
1968 | 0 | return -1; |
1969 | | |
1970 | 0 | values = malloc(len * sizeof(void *)); |
1971 | 0 | if (!values) { |
1972 | 0 | free(dtds); |
1973 | 0 | return -1; |
1974 | 0 | } |
1975 | | |
1976 | 0 | for (p = seq, i = 0; i < len; i++, p = p->next) { |
1977 | 0 | uuid_t *uuid = p->data; |
1978 | 0 | if (uuid) |
1979 | 0 | switch (uuid->type) { |
1980 | 0 | case SDP_UUID16: |
1981 | 0 | dtds[i] = &uuid16; |
1982 | 0 | values[i] = &uuid->value.uuid16; |
1983 | 0 | break; |
1984 | 0 | case SDP_UUID32: |
1985 | 0 | dtds[i] = &uuid32; |
1986 | 0 | values[i] = &uuid->value.uuid32; |
1987 | 0 | break; |
1988 | 0 | case SDP_UUID128: |
1989 | 0 | dtds[i] = &uuid128; |
1990 | 0 | values[i] = &uuid->value.uuid128; |
1991 | 0 | break; |
1992 | 0 | default: |
1993 | 0 | status = -1; |
1994 | 0 | break; |
1995 | 0 | } |
1996 | 0 | else { |
1997 | 0 | status = -1; |
1998 | 0 | break; |
1999 | 0 | } |
2000 | 0 | } |
2001 | 0 | if (status == 0) { |
2002 | 0 | sdp_data_t *data = sdp_seq_alloc(dtds, values, len); |
2003 | 0 | sdp_attr_replace(rec, aid, data); |
2004 | 0 | sdp_pattern_add_uuidseq(rec, seq); |
2005 | 0 | } |
2006 | 0 | free(dtds); |
2007 | 0 | free(values); |
2008 | 0 | return status; |
2009 | 0 | } |
2010 | | |
2011 | | int sdp_get_lang_attr(const sdp_record_t *rec, sdp_list_t **langSeq) |
2012 | 0 | { |
2013 | 0 | sdp_lang_attr_t *lang; |
2014 | 0 | sdp_data_t *sdpdata, *curr_data; |
2015 | |
|
2016 | 0 | *langSeq = NULL; |
2017 | 0 | sdpdata = sdp_data_get(rec, SDP_ATTR_LANG_BASE_ATTR_ID_LIST); |
2018 | 0 | if (sdpdata == NULL) { |
2019 | 0 | errno = ENODATA; |
2020 | 0 | return -1; |
2021 | 0 | } |
2022 | | |
2023 | 0 | if (!SDP_IS_SEQ(sdpdata->dtd)) |
2024 | 0 | goto invalid; |
2025 | 0 | curr_data = sdpdata->val.dataseq; |
2026 | |
|
2027 | 0 | while (curr_data) { |
2028 | 0 | sdp_data_t *pCode, *pEncoding, *pOffset; |
2029 | |
|
2030 | 0 | pCode = curr_data; |
2031 | 0 | if (pCode->dtd != SDP_UINT16) |
2032 | 0 | goto invalid; |
2033 | | |
2034 | | /* LanguageBaseAttributeIDList entries are always grouped as |
2035 | | * triplets */ |
2036 | 0 | if (!pCode->next || !pCode->next->next) |
2037 | 0 | goto invalid; |
2038 | | |
2039 | 0 | pEncoding = pCode->next; |
2040 | 0 | if (pEncoding->dtd != SDP_UINT16) |
2041 | 0 | goto invalid; |
2042 | | |
2043 | 0 | pOffset = pEncoding->next; |
2044 | 0 | if (pOffset->dtd != SDP_UINT16) |
2045 | 0 | goto invalid; |
2046 | | |
2047 | 0 | lang = malloc(sizeof(sdp_lang_attr_t)); |
2048 | 0 | if (!lang) { |
2049 | 0 | sdp_list_free(*langSeq, free); |
2050 | 0 | *langSeq = NULL; |
2051 | 0 | return -1; |
2052 | 0 | } |
2053 | 0 | lang->code_ISO639 = pCode->val.uint16; |
2054 | 0 | lang->encoding = pEncoding->val.uint16; |
2055 | 0 | lang->base_offset = pOffset->val.uint16; |
2056 | 0 | SDPDBG("code_ISO639 : 0x%02x", lang->code_ISO639); |
2057 | 0 | SDPDBG("encoding : 0x%02x", lang->encoding); |
2058 | 0 | SDPDBG("base_offfset : 0x%02x", lang->base_offset); |
2059 | 0 | *langSeq = sdp_list_append(*langSeq, lang); |
2060 | |
|
2061 | 0 | curr_data = pOffset->next; |
2062 | 0 | } |
2063 | | |
2064 | 0 | return 0; |
2065 | | |
2066 | 0 | invalid: |
2067 | 0 | sdp_list_free(*langSeq, free); |
2068 | 0 | *langSeq = NULL; |
2069 | 0 | errno = EINVAL; |
2070 | |
|
2071 | 0 | return -1; |
2072 | 0 | } |
2073 | | |
2074 | | int sdp_get_profile_descs(const sdp_record_t *rec, sdp_list_t **profDescSeq) |
2075 | 0 | { |
2076 | 0 | sdp_profile_desc_t *profDesc; |
2077 | 0 | sdp_data_t *sdpdata, *seq; |
2078 | |
|
2079 | 0 | *profDescSeq = NULL; |
2080 | 0 | sdpdata = sdp_data_get(rec, SDP_ATTR_PFILE_DESC_LIST); |
2081 | 0 | if (sdpdata == NULL) { |
2082 | 0 | errno = ENODATA; |
2083 | 0 | return -1; |
2084 | 0 | } |
2085 | | |
2086 | 0 | if (!SDP_IS_SEQ(sdpdata->dtd) || sdpdata->val.dataseq == NULL) |
2087 | 0 | goto invalid; |
2088 | | |
2089 | 0 | for (seq = sdpdata->val.dataseq; seq; seq = seq->next) { |
2090 | 0 | uuid_t *uuid = NULL; |
2091 | 0 | uint16_t version = 0x100; |
2092 | |
|
2093 | 0 | if (SDP_IS_UUID(seq->dtd)) { |
2094 | | /* Mac OS X 10.7.3 and old Samsung phones do not comply |
2095 | | * to the SDP specification for |
2096 | | * BluetoothProfileDescriptorList. This workaround |
2097 | | * allows to properly parse UUID/version from SDP |
2098 | | * record published by these systems. */ |
2099 | 0 | sdp_data_t *next = seq->next; |
2100 | 0 | uuid = &seq->val.uuid; |
2101 | 0 | if (next && next->dtd == SDP_UINT16) { |
2102 | 0 | version = next->val.uint16; |
2103 | 0 | seq = next; |
2104 | 0 | } |
2105 | 0 | } else if (SDP_IS_SEQ(seq->dtd)) { |
2106 | 0 | sdp_data_t *puuid, *pVnum; |
2107 | |
|
2108 | 0 | puuid = seq->val.dataseq; |
2109 | 0 | if (puuid == NULL || !SDP_IS_UUID(puuid->dtd)) |
2110 | 0 | goto invalid; |
2111 | | |
2112 | 0 | uuid = &puuid->val.uuid; |
2113 | |
|
2114 | 0 | pVnum = puuid->next; |
2115 | 0 | if (pVnum == NULL || pVnum->dtd != SDP_UINT16) |
2116 | 0 | goto invalid; |
2117 | | |
2118 | 0 | version = pVnum->val.uint16; |
2119 | 0 | } else |
2120 | 0 | goto invalid; |
2121 | | |
2122 | 0 | if (uuid != NULL) { |
2123 | 0 | profDesc = malloc(sizeof(sdp_profile_desc_t)); |
2124 | 0 | if (!profDesc) { |
2125 | 0 | sdp_list_free(*profDescSeq, free); |
2126 | 0 | *profDescSeq = NULL; |
2127 | 0 | return -1; |
2128 | 0 | } |
2129 | 0 | profDesc->uuid = *uuid; |
2130 | 0 | profDesc->version = version; |
2131 | | #ifdef SDP_DEBUG |
2132 | | sdp_uuid_print(&profDesc->uuid); |
2133 | | SDPDBG("Vnum : 0x%04x", profDesc->version); |
2134 | | #endif |
2135 | 0 | *profDescSeq = sdp_list_append(*profDescSeq, profDesc); |
2136 | 0 | } |
2137 | 0 | } |
2138 | 0 | return 0; |
2139 | | |
2140 | 0 | invalid: |
2141 | 0 | sdp_list_free(*profDescSeq, free); |
2142 | 0 | *profDescSeq = NULL; |
2143 | 0 | errno = EINVAL; |
2144 | |
|
2145 | 0 | return -1; |
2146 | 0 | } |
2147 | | |
2148 | | int sdp_get_server_ver(const sdp_record_t *rec, sdp_list_t **u16) |
2149 | 0 | { |
2150 | 0 | sdp_data_t *d, *curr; |
2151 | |
|
2152 | 0 | *u16 = NULL; |
2153 | 0 | d = sdp_data_get(rec, SDP_ATTR_VERSION_NUM_LIST); |
2154 | 0 | if (d == NULL) { |
2155 | 0 | errno = ENODATA; |
2156 | 0 | return -1; |
2157 | 0 | } |
2158 | | |
2159 | 0 | if (!SDP_IS_SEQ(d->dtd) || d->val.dataseq == NULL) |
2160 | 0 | goto invalid; |
2161 | | |
2162 | 0 | for (curr = d->val.dataseq; curr; curr = curr->next) { |
2163 | 0 | if (curr->dtd != SDP_UINT16) |
2164 | 0 | goto invalid; |
2165 | 0 | *u16 = sdp_list_append(*u16, &curr->val.uint16); |
2166 | 0 | } |
2167 | | |
2168 | 0 | return 0; |
2169 | | |
2170 | 0 | invalid: |
2171 | 0 | sdp_list_free(*u16, NULL); |
2172 | 0 | *u16 = NULL; |
2173 | 0 | errno = EINVAL; |
2174 | |
|
2175 | 0 | return -1; |
2176 | 0 | } |
2177 | | |
2178 | | /* flexible extraction of basic attributes - Jean II */ |
2179 | | /* How do we expect caller to extract predefined data sequences? */ |
2180 | | int sdp_get_int_attr(const sdp_record_t *rec, uint16_t attrid, int *value) |
2181 | 0 | { |
2182 | 0 | sdp_data_t *sdpdata = sdp_data_get(rec, attrid); |
2183 | |
|
2184 | 0 | if (sdpdata) |
2185 | | /* Verify that it is what the caller expects */ |
2186 | 0 | if (sdpdata->dtd == SDP_BOOL || sdpdata->dtd == SDP_UINT8 || |
2187 | 0 | sdpdata->dtd == SDP_UINT16 || sdpdata->dtd == SDP_UINT32 || |
2188 | 0 | sdpdata->dtd == SDP_INT8 || sdpdata->dtd == SDP_INT16 || |
2189 | 0 | sdpdata->dtd == SDP_INT32) { |
2190 | 0 | *value = sdpdata->val.uint32; |
2191 | 0 | return 0; |
2192 | 0 | } |
2193 | 0 | errno = EINVAL; |
2194 | 0 | return -1; |
2195 | 0 | } |
2196 | | |
2197 | | int sdp_get_string_attr(const sdp_record_t *rec, uint16_t attrid, char *value, |
2198 | | size_t valuelen) |
2199 | 0 | { |
2200 | 0 | sdp_data_t *sdpdata = sdp_data_get(rec, attrid); |
2201 | | |
2202 | | /* Verify that it is what the caller expects */ |
2203 | 0 | if (!sdpdata || !SDP_IS_TEXT_STR(sdpdata->dtd)) |
2204 | 0 | goto fail; |
2205 | | |
2206 | | /* Have to copy the NULL terminator too, so check len < valuelen. */ |
2207 | 0 | if (strlen(sdpdata->val.str) < valuelen) { |
2208 | 0 | strcpy(value, sdpdata->val.str); |
2209 | 0 | return 0; |
2210 | 0 | } |
2211 | | |
2212 | 0 | fail: |
2213 | 0 | errno = EINVAL; |
2214 | 0 | return -1; |
2215 | 0 | } |
2216 | | |
2217 | | #define get_basic_attr(attrID, pAttrValue, fieldName) \ |
2218 | 0 | sdp_data_t *data = sdp_data_get(rec, attrID); \ |
2219 | 0 | if (data) { \ |
2220 | 0 | *pAttrValue = data->val.fieldName; \ |
2221 | 0 | return 0; \ |
2222 | 0 | } \ |
2223 | 0 | errno = EINVAL; \ |
2224 | 0 | return -1; |
2225 | | |
2226 | | int sdp_get_service_id(const sdp_record_t *rec, uuid_t *uuid) |
2227 | 0 | { |
2228 | 0 | get_basic_attr(SDP_ATTR_SERVICE_ID, uuid, uuid); |
2229 | 0 | } |
2230 | | |
2231 | | int sdp_get_group_id(const sdp_record_t *rec, uuid_t *uuid) |
2232 | 0 | { |
2233 | 0 | get_basic_attr(SDP_ATTR_GROUP_ID, uuid, uuid); |
2234 | 0 | } |
2235 | | |
2236 | | int sdp_get_record_state(const sdp_record_t *rec, uint32_t *svcRecState) |
2237 | 0 | { |
2238 | 0 | get_basic_attr(SDP_ATTR_RECORD_STATE, svcRecState, uint32); |
2239 | 0 | } |
2240 | | |
2241 | | int sdp_get_service_avail(const sdp_record_t *rec, uint8_t *svcAvail) |
2242 | 0 | { |
2243 | 0 | get_basic_attr(SDP_ATTR_SERVICE_AVAILABILITY, svcAvail, uint8); |
2244 | 0 | } |
2245 | | |
2246 | | int sdp_get_service_ttl(const sdp_record_t *rec, uint32_t *svcTTLInfo) |
2247 | 0 | { |
2248 | 0 | get_basic_attr(SDP_ATTR_SVCINFO_TTL, svcTTLInfo, uint32); |
2249 | 0 | } |
2250 | | |
2251 | | int sdp_get_database_state(const sdp_record_t *rec, uint32_t *svcDBState) |
2252 | 0 | { |
2253 | 0 | get_basic_attr(SDP_ATTR_SVCDB_STATE, svcDBState, uint32); |
2254 | 0 | } |
2255 | | |
2256 | | /* |
2257 | | * NOTE that none of the setXXX() functions below will |
2258 | | * actually update the SDP server, unless the |
2259 | | * {register, update}sdp_record_t() function is invoked. |
2260 | | */ |
2261 | | |
2262 | | int sdp_attr_add_new(sdp_record_t *rec, uint16_t attr, uint8_t dtd, |
2263 | | const void *value) |
2264 | 0 | { |
2265 | 0 | sdp_data_t *d = sdp_data_alloc(dtd, value); |
2266 | 0 | if (d) { |
2267 | 0 | sdp_attr_replace(rec, attr, d); |
2268 | 0 | return 0; |
2269 | 0 | } |
2270 | 0 | return -1; |
2271 | 0 | } |
2272 | | |
2273 | | static int sdp_attr_add_new_with_length(sdp_record_t *rec, |
2274 | | uint16_t attr, uint8_t dtd, const void *value, uint32_t len) |
2275 | 0 | { |
2276 | 0 | sdp_data_t *d; |
2277 | |
|
2278 | 0 | d = sdp_data_alloc_with_length(dtd, value, len); |
2279 | 0 | if (!d) |
2280 | 0 | return -1; |
2281 | | |
2282 | 0 | sdp_attr_replace(rec, attr, d); |
2283 | |
|
2284 | 0 | return 0; |
2285 | 0 | } |
2286 | | |
2287 | | /* |
2288 | | * Set the information attributes of the service |
2289 | | * pointed to by rec. The attributes are |
2290 | | * service name, description and provider name |
2291 | | */ |
2292 | | void sdp_set_info_attr(sdp_record_t *rec, const char *name, const char *prov, |
2293 | | const char *desc) |
2294 | 0 | { |
2295 | 0 | if (name) |
2296 | 0 | sdp_attr_add_new(rec, SDP_ATTR_SVCNAME_PRIMARY, |
2297 | 0 | SDP_TEXT_STR8, name); |
2298 | 0 | if (prov) |
2299 | 0 | sdp_attr_add_new(rec, SDP_ATTR_PROVNAME_PRIMARY, |
2300 | 0 | SDP_TEXT_STR8, prov); |
2301 | 0 | if (desc) |
2302 | 0 | sdp_attr_add_new(rec, SDP_ATTR_SVCDESC_PRIMARY, |
2303 | 0 | SDP_TEXT_STR8, desc); |
2304 | 0 | } |
2305 | | |
2306 | | static sdp_data_t *access_proto_to_dataseq(sdp_record_t *rec, sdp_list_t *proto) |
2307 | 0 | { |
2308 | 0 | sdp_data_t *seq = NULL; |
2309 | 0 | void *dtds[10], *values[10]; |
2310 | 0 | void **seqDTDs, **seqs; |
2311 | 0 | int i, seqlen; |
2312 | 0 | sdp_list_t *p; |
2313 | |
|
2314 | 0 | seqlen = sdp_list_len(proto); |
2315 | 0 | seqDTDs = bt_malloc0(seqlen * sizeof(void *)); |
2316 | 0 | if (!seqDTDs) |
2317 | 0 | return NULL; |
2318 | | |
2319 | 0 | seqs = malloc(seqlen * sizeof(void *)); |
2320 | 0 | if (!seqs) { |
2321 | 0 | free(seqDTDs); |
2322 | 0 | return NULL; |
2323 | 0 | } |
2324 | | |
2325 | 0 | for (i = 0, p = proto; p; p = p->next, i++) { |
2326 | 0 | sdp_list_t *elt = p->data; |
2327 | 0 | sdp_data_t *s; |
2328 | 0 | uuid_t *uuid = NULL; |
2329 | 0 | unsigned int pslen = 0; |
2330 | 0 | for (; elt && pslen < ARRAY_SIZE(dtds); elt = elt->next, pslen++) { |
2331 | 0 | sdp_data_t *d = elt->data; |
2332 | 0 | dtds[pslen] = &d->dtd; |
2333 | 0 | switch (d->dtd) { |
2334 | 0 | case SDP_UUID16: |
2335 | 0 | uuid = (uuid_t *) d; |
2336 | 0 | values[pslen] = &uuid->value.uuid16; |
2337 | 0 | break; |
2338 | 0 | case SDP_UUID32: |
2339 | 0 | uuid = (uuid_t *) d; |
2340 | 0 | values[pslen] = &uuid->value.uuid32; |
2341 | 0 | break; |
2342 | 0 | case SDP_UUID128: |
2343 | 0 | uuid = (uuid_t *) d; |
2344 | 0 | values[pslen] = &uuid->value.uuid128; |
2345 | 0 | break; |
2346 | 0 | case SDP_UINT8: |
2347 | 0 | values[pslen] = &d->val.uint8; |
2348 | 0 | break; |
2349 | 0 | case SDP_UINT16: |
2350 | 0 | values[pslen] = &d->val.uint16; |
2351 | 0 | break; |
2352 | 0 | case SDP_SEQ8: |
2353 | 0 | case SDP_SEQ16: |
2354 | 0 | case SDP_SEQ32: |
2355 | 0 | values[pslen] = d; |
2356 | 0 | break; |
2357 | | /* FIXME: more */ |
2358 | 0 | } |
2359 | 0 | } |
2360 | 0 | s = sdp_seq_alloc(dtds, values, pslen); |
2361 | 0 | if (s) { |
2362 | 0 | seqDTDs[i] = &s->dtd; |
2363 | 0 | seqs[i] = s; |
2364 | 0 | if (uuid) |
2365 | 0 | sdp_pattern_add_uuid(rec, uuid); |
2366 | 0 | } |
2367 | 0 | } |
2368 | 0 | seq = sdp_seq_alloc(seqDTDs, seqs, seqlen); |
2369 | 0 | free(seqDTDs); |
2370 | 0 | free(seqs); |
2371 | 0 | return seq; |
2372 | 0 | } |
2373 | | |
2374 | | /* |
2375 | | * sets the access protocols of the service specified |
2376 | | * to the value specified in "access_proto" |
2377 | | * |
2378 | | * Note that if there are alternate mechanisms by |
2379 | | * which the service is accessed, then they should |
2380 | | * be specified as sequences |
2381 | | * |
2382 | | * Using a value of NULL for accessProtocols has |
2383 | | * effect of removing this attribute (if previously set) |
2384 | | * |
2385 | | * This function replaces the existing sdp_access_proto_t |
2386 | | * structure (if any) with the new one specified. |
2387 | | * |
2388 | | * returns 0 if successful or -1 if there is a failure. |
2389 | | */ |
2390 | | int sdp_set_access_protos(sdp_record_t *rec, const sdp_list_t *ap) |
2391 | 0 | { |
2392 | 0 | const sdp_list_t *p; |
2393 | 0 | sdp_data_t *protos = NULL; |
2394 | |
|
2395 | 0 | for (p = ap; p; p = p->next) { |
2396 | 0 | sdp_data_t *seq = access_proto_to_dataseq(rec, p->data); |
2397 | 0 | protos = sdp_seq_append(protos, seq); |
2398 | 0 | } |
2399 | |
|
2400 | 0 | sdp_attr_add(rec, SDP_ATTR_PROTO_DESC_LIST, protos); |
2401 | |
|
2402 | 0 | return 0; |
2403 | 0 | } |
2404 | | |
2405 | | int sdp_set_add_access_protos(sdp_record_t *rec, const sdp_list_t *ap) |
2406 | 0 | { |
2407 | 0 | const sdp_list_t *p; |
2408 | 0 | sdp_data_t *protos = NULL; |
2409 | |
|
2410 | 0 | for (p = ap; p; p = p->next) { |
2411 | 0 | sdp_data_t *seq = access_proto_to_dataseq(rec, p->data); |
2412 | 0 | protos = sdp_seq_append(protos, seq); |
2413 | 0 | } |
2414 | |
|
2415 | 0 | sdp_attr_add(rec, SDP_ATTR_ADD_PROTO_DESC_LIST, |
2416 | 0 | protos ? sdp_data_alloc(SDP_SEQ8, protos) : NULL); |
2417 | |
|
2418 | 0 | return 0; |
2419 | 0 | } |
2420 | | |
2421 | | /* |
2422 | | * set the "LanguageBase" attributes of the service record |
2423 | | * record to the value specified in "langAttrList". |
2424 | | * |
2425 | | * "langAttrList" is a linked list of "sdp_lang_attr_t" |
2426 | | * objects, one for each language in which user visible |
2427 | | * attributes are present in the service record. |
2428 | | * |
2429 | | * Using a value of NULL for langAttrList has |
2430 | | * effect of removing this attribute (if previously set) |
2431 | | * |
2432 | | * This function replaces the exisiting sdp_lang_attr_t |
2433 | | * structure (if any) with the new one specified. |
2434 | | * |
2435 | | * returns 0 if successful or -1 if there is a failure. |
2436 | | */ |
2437 | | int sdp_set_lang_attr(sdp_record_t *rec, const sdp_list_t *seq) |
2438 | 0 | { |
2439 | 0 | uint8_t uint16 = SDP_UINT16; |
2440 | 0 | int status = 0, i = 0, seqlen = sdp_list_len(seq); |
2441 | 0 | void **dtds, **values; |
2442 | 0 | const sdp_list_t *p; |
2443 | |
|
2444 | 0 | dtds = malloc(3 * seqlen * sizeof(void *)); |
2445 | 0 | if (!dtds) |
2446 | 0 | return -1; |
2447 | | |
2448 | 0 | values = malloc(3 * seqlen * sizeof(void *)); |
2449 | 0 | if (!values) { |
2450 | 0 | free(dtds); |
2451 | 0 | return -1; |
2452 | 0 | } |
2453 | | |
2454 | 0 | for (p = seq; p; p = p->next) { |
2455 | 0 | sdp_lang_attr_t *lang = p->data; |
2456 | 0 | if (!lang) { |
2457 | 0 | status = -1; |
2458 | 0 | break; |
2459 | 0 | } |
2460 | 0 | dtds[i] = &uint16; |
2461 | 0 | values[i] = &lang->code_ISO639; |
2462 | 0 | i++; |
2463 | 0 | dtds[i] = &uint16; |
2464 | 0 | values[i] = &lang->encoding; |
2465 | 0 | i++; |
2466 | 0 | dtds[i] = &uint16; |
2467 | 0 | values[i] = &lang->base_offset; |
2468 | 0 | i++; |
2469 | 0 | } |
2470 | 0 | if (status == 0) { |
2471 | 0 | sdp_data_t *seq = sdp_seq_alloc(dtds, values, 3 * seqlen); |
2472 | 0 | sdp_attr_add(rec, SDP_ATTR_LANG_BASE_ATTR_ID_LIST, seq); |
2473 | 0 | } |
2474 | 0 | free(dtds); |
2475 | 0 | free(values); |
2476 | 0 | return status; |
2477 | 0 | } |
2478 | | |
2479 | | /* |
2480 | | * set the "ServiceID" attribute of the service. |
2481 | | * |
2482 | | * This is the UUID of the service. |
2483 | | * |
2484 | | * returns 0 if successful or -1 if there is a failure. |
2485 | | */ |
2486 | | void sdp_set_service_id(sdp_record_t *rec, uuid_t uuid) |
2487 | 0 | { |
2488 | 0 | switch (uuid.type) { |
2489 | 0 | case SDP_UUID16: |
2490 | 0 | sdp_attr_add_new(rec, SDP_ATTR_SERVICE_ID, SDP_UUID16, |
2491 | 0 | &uuid.value.uuid16); |
2492 | 0 | break; |
2493 | 0 | case SDP_UUID32: |
2494 | 0 | sdp_attr_add_new(rec, SDP_ATTR_SERVICE_ID, SDP_UUID32, |
2495 | 0 | &uuid.value.uuid32); |
2496 | 0 | break; |
2497 | 0 | case SDP_UUID128: |
2498 | 0 | sdp_attr_add_new(rec, SDP_ATTR_SERVICE_ID, SDP_UUID128, |
2499 | 0 | &uuid.value.uuid128); |
2500 | 0 | break; |
2501 | 0 | } |
2502 | 0 | sdp_pattern_add_uuid(rec, &uuid); |
2503 | 0 | } |
2504 | | |
2505 | | /* |
2506 | | * set the GroupID attribute of the service record defining a group. |
2507 | | * |
2508 | | * This is the UUID of the group. |
2509 | | * |
2510 | | * returns 0 if successful or -1 if there is a failure. |
2511 | | */ |
2512 | | void sdp_set_group_id(sdp_record_t *rec, uuid_t uuid) |
2513 | 0 | { |
2514 | 0 | switch (uuid.type) { |
2515 | 0 | case SDP_UUID16: |
2516 | 0 | sdp_attr_add_new(rec, SDP_ATTR_GROUP_ID, SDP_UUID16, |
2517 | 0 | &uuid.value.uuid16); |
2518 | 0 | break; |
2519 | 0 | case SDP_UUID32: |
2520 | 0 | sdp_attr_add_new(rec, SDP_ATTR_GROUP_ID, SDP_UUID32, |
2521 | 0 | &uuid.value.uuid32); |
2522 | 0 | break; |
2523 | 0 | case SDP_UUID128: |
2524 | 0 | sdp_attr_add_new(rec, SDP_ATTR_GROUP_ID, SDP_UUID128, |
2525 | 0 | &uuid.value.uuid128); |
2526 | 0 | break; |
2527 | 0 | } |
2528 | 0 | sdp_pattern_add_uuid(rec, &uuid); |
2529 | 0 | } |
2530 | | |
2531 | | /* |
2532 | | * set the ProfileDescriptorList attribute of the service record |
2533 | | * pointed to by record to the value specified in "profileDesc". |
2534 | | * |
2535 | | * Each element in the list is an object of type |
2536 | | * sdp_profile_desc_t which is a definition of the |
2537 | | * Bluetooth profile that this service conforms to. |
2538 | | * |
2539 | | * Using a value of NULL for profileDesc has |
2540 | | * effect of removing this attribute (if previously set) |
2541 | | * |
2542 | | * This function replaces the exisiting ProfileDescriptorList |
2543 | | * structure (if any) with the new one specified. |
2544 | | * |
2545 | | * returns 0 if successful or -1 if there is a failure. |
2546 | | */ |
2547 | | int sdp_set_profile_descs(sdp_record_t *rec, const sdp_list_t *profiles) |
2548 | 0 | { |
2549 | 0 | int status = 0; |
2550 | 0 | uint8_t uuid16 = SDP_UUID16; |
2551 | 0 | uint8_t uuid32 = SDP_UUID32; |
2552 | 0 | uint8_t uuid128 = SDP_UUID128; |
2553 | 0 | uint8_t uint16 = SDP_UINT16; |
2554 | 0 | int i = 0, seqlen = sdp_list_len(profiles); |
2555 | 0 | void **seqDTDs, **seqs; |
2556 | 0 | const sdp_list_t *p; |
2557 | 0 | sdp_data_t *pAPSeq; |
2558 | |
|
2559 | 0 | seqDTDs = malloc(seqlen * sizeof(void *)); |
2560 | 0 | if (!seqDTDs) |
2561 | 0 | return -1; |
2562 | | |
2563 | 0 | seqs = malloc(seqlen * sizeof(void *)); |
2564 | 0 | if (!seqs) { |
2565 | 0 | free(seqDTDs); |
2566 | 0 | return -1; |
2567 | 0 | } |
2568 | | |
2569 | 0 | for (p = profiles; p; p = p->next) { |
2570 | 0 | sdp_data_t *seq; |
2571 | 0 | void *dtds[2], *values[2]; |
2572 | 0 | sdp_profile_desc_t *profile = p->data; |
2573 | 0 | if (!profile) { |
2574 | 0 | status = -1; |
2575 | 0 | goto end; |
2576 | 0 | } |
2577 | 0 | switch (profile->uuid.type) { |
2578 | 0 | case SDP_UUID16: |
2579 | 0 | dtds[0] = &uuid16; |
2580 | 0 | values[0] = &profile->uuid.value.uuid16; |
2581 | 0 | break; |
2582 | 0 | case SDP_UUID32: |
2583 | 0 | dtds[0] = &uuid32; |
2584 | 0 | values[0] = &profile->uuid.value.uuid32; |
2585 | 0 | break; |
2586 | 0 | case SDP_UUID128: |
2587 | 0 | dtds[0] = &uuid128; |
2588 | 0 | values[0] = &profile->uuid.value.uuid128; |
2589 | 0 | break; |
2590 | 0 | default: |
2591 | 0 | status = -1; |
2592 | 0 | goto end; |
2593 | 0 | } |
2594 | 0 | dtds[1] = &uint16; |
2595 | 0 | values[1] = &profile->version; |
2596 | 0 | seq = sdp_seq_alloc(dtds, values, 2); |
2597 | |
|
2598 | 0 | if (seq == NULL) { |
2599 | 0 | status = -1; |
2600 | 0 | goto end; |
2601 | 0 | } |
2602 | | |
2603 | 0 | seqDTDs[i] = &seq->dtd; |
2604 | 0 | seqs[i] = seq; |
2605 | 0 | sdp_pattern_add_uuid(rec, &profile->uuid); |
2606 | 0 | i++; |
2607 | 0 | } |
2608 | | |
2609 | 0 | pAPSeq = sdp_seq_alloc(seqDTDs, seqs, seqlen); |
2610 | 0 | sdp_attr_add(rec, SDP_ATTR_PFILE_DESC_LIST, pAPSeq); |
2611 | 0 | end: |
2612 | 0 | free(seqDTDs); |
2613 | 0 | free(seqs); |
2614 | 0 | return status; |
2615 | 0 | } |
2616 | | |
2617 | | /* |
2618 | | * sets various URL attributes of the service |
2619 | | * pointed to by record. The URL include |
2620 | | * |
2621 | | * client: a URL to the client's |
2622 | | * platform specific (WinCE, PalmOS) executable |
2623 | | * code that can be used to access this service. |
2624 | | * |
2625 | | * doc: a URL pointing to service documentation |
2626 | | * |
2627 | | * icon: a URL to an icon that can be used to represent |
2628 | | * this service. |
2629 | | * |
2630 | | * Note that you need to pass NULL for any URLs |
2631 | | * that you don't want to set or remove |
2632 | | */ |
2633 | | void sdp_set_url_attr(sdp_record_t *rec, const char *client, const char *doc, |
2634 | | const char *icon) |
2635 | 0 | { |
2636 | 0 | sdp_attr_add_new(rec, SDP_ATTR_CLNT_EXEC_URL, SDP_URL_STR8, client); |
2637 | 0 | sdp_attr_add_new(rec, SDP_ATTR_DOC_URL, SDP_URL_STR8, doc); |
2638 | 0 | sdp_attr_add_new(rec, SDP_ATTR_ICON_URL, SDP_URL_STR8, icon); |
2639 | 0 | } |
2640 | | |
2641 | | uuid_t *sdp_uuid16_create(uuid_t *u, uint16_t val) |
2642 | 4 | { |
2643 | 4 | memset(u, 0, sizeof(uuid_t)); |
2644 | 4 | u->type = SDP_UUID16; |
2645 | 4 | u->value.uuid16 = val; |
2646 | 4 | return u; |
2647 | 4 | } |
2648 | | |
2649 | | uuid_t *sdp_uuid32_create(uuid_t *u, uint32_t val) |
2650 | 0 | { |
2651 | 0 | memset(u, 0, sizeof(uuid_t)); |
2652 | 0 | u->type = SDP_UUID32; |
2653 | 0 | u->value.uuid32 = val; |
2654 | 0 | return u; |
2655 | 0 | } |
2656 | | |
2657 | | uuid_t *sdp_uuid128_create(uuid_t *u, const void *val) |
2658 | 260 | { |
2659 | 260 | memset(u, 0, sizeof(uuid_t)); |
2660 | 260 | u->type = SDP_UUID128; |
2661 | 260 | memcpy(&u->value.uuid128, val, sizeof(uint128_t)); |
2662 | 260 | return u; |
2663 | 260 | } |
2664 | | |
2665 | | /* |
2666 | | * UUID comparison function |
2667 | | * returns 0 if uuidValue1 == uuidValue2 else -1 |
2668 | | */ |
2669 | | int sdp_uuid_cmp(const void *p1, const void *p2) |
2670 | 0 | { |
2671 | 0 | uuid_t *u1 = sdp_uuid_to_uuid128(p1); |
2672 | 0 | uuid_t *u2 = sdp_uuid_to_uuid128(p2); |
2673 | 0 | int ret; |
2674 | |
|
2675 | 0 | ret = sdp_uuid128_cmp(u1, u2); |
2676 | |
|
2677 | 0 | bt_free(u1); |
2678 | 0 | bt_free(u2); |
2679 | |
|
2680 | 0 | return ret; |
2681 | 0 | } |
2682 | | |
2683 | | /* |
2684 | | * UUID comparison function |
2685 | | * returns 0 if uuidValue1 == uuidValue2 else -1 |
2686 | | */ |
2687 | | int sdp_uuid16_cmp(const void *p1, const void *p2) |
2688 | 0 | { |
2689 | 0 | const uuid_t *u1 = p1; |
2690 | 0 | const uuid_t *u2 = p2; |
2691 | 0 | return memcmp(&u1->value.uuid16, &u2->value.uuid16, sizeof(uint16_t)); |
2692 | 0 | } |
2693 | | |
2694 | | /* |
2695 | | * UUID comparison function |
2696 | | * returns 0 if uuidValue1 == uuidValue2 else -1 |
2697 | | */ |
2698 | | int sdp_uuid128_cmp(const void *p1, const void *p2) |
2699 | 1.25k | { |
2700 | 1.25k | const uuid_t *u1 = p1; |
2701 | 1.25k | const uuid_t *u2 = p2; |
2702 | 1.25k | return memcmp(&u1->value.uuid128, &u2->value.uuid128, sizeof(uint128_t)); |
2703 | 1.25k | } |
2704 | | |
2705 | | /* |
2706 | | * 128 to 16 bit and 32 to 16 bit UUID conversion functions |
2707 | | * yet to be implemented. Note that the input is in NBO in |
2708 | | * both 32 and 128 bit UUIDs and conversion is needed |
2709 | | */ |
2710 | | void sdp_uuid16_to_uuid128(uuid_t *uuid128, const uuid_t *uuid16) |
2711 | 4 | { |
2712 | | /* |
2713 | | * We have a 16 bit value, which needs to be added to |
2714 | | * bytes 3 and 4 (at indices 2 and 3) of the Bluetooth base |
2715 | | */ |
2716 | 4 | unsigned short data1; |
2717 | | |
2718 | | /* allocate a 128bit UUID and init to the Bluetooth base UUID */ |
2719 | 4 | uuid128->value.uuid128 = bluetooth_base_uuid; |
2720 | 4 | uuid128->type = SDP_UUID128; |
2721 | | |
2722 | | /* extract bytes 2 and 3 of 128bit BT base UUID */ |
2723 | 4 | memcpy(&data1, &bluetooth_base_uuid.data[2], 2); |
2724 | | |
2725 | | /* add the given UUID (16 bits) */ |
2726 | 4 | data1 += htons(uuid16->value.uuid16); |
2727 | | |
2728 | | /* set bytes 2 and 3 of the 128 bit value */ |
2729 | 4 | memcpy(&uuid128->value.uuid128.data[2], &data1, 2); |
2730 | 4 | } |
2731 | | |
2732 | | void sdp_uuid32_to_uuid128(uuid_t *uuid128, const uuid_t *uuid32) |
2733 | 0 | { |
2734 | | /* |
2735 | | * We have a 32 bit value, which needs to be added to |
2736 | | * bytes 1->4 (at indices 0 thru 3) of the Bluetooth base |
2737 | | */ |
2738 | 0 | unsigned int data0; |
2739 | | |
2740 | | /* allocate a 128bit UUID and init to the Bluetooth base UUID */ |
2741 | 0 | uuid128->value.uuid128 = bluetooth_base_uuid; |
2742 | 0 | uuid128->type = SDP_UUID128; |
2743 | | |
2744 | | /* extract first 4 bytes */ |
2745 | 0 | memcpy(&data0, &bluetooth_base_uuid.data[0], 4); |
2746 | | |
2747 | | /* add the given UUID (32bits) */ |
2748 | 0 | data0 += htonl(uuid32->value.uuid32); |
2749 | | |
2750 | | /* set the 4 bytes of the 128 bit value */ |
2751 | 0 | memcpy(&uuid128->value.uuid128.data[0], &data0, 4); |
2752 | 0 | } |
2753 | | |
2754 | | uuid_t *sdp_uuid_to_uuid128(const uuid_t *uuid) |
2755 | 264 | { |
2756 | 264 | uuid_t *uuid128 = bt_malloc0(sizeof(uuid_t)); |
2757 | | |
2758 | 264 | if (!uuid128) |
2759 | 0 | return NULL; |
2760 | | |
2761 | 264 | switch (uuid->type) { |
2762 | 260 | case SDP_UUID128: |
2763 | 260 | *uuid128 = *uuid; |
2764 | 260 | break; |
2765 | 0 | case SDP_UUID32: |
2766 | 0 | sdp_uuid32_to_uuid128(uuid128, uuid); |
2767 | 0 | break; |
2768 | 4 | case SDP_UUID16: |
2769 | 4 | sdp_uuid16_to_uuid128(uuid128, uuid); |
2770 | 4 | break; |
2771 | 264 | } |
2772 | 264 | return uuid128; |
2773 | 264 | } |
2774 | | |
2775 | | /* |
2776 | | * converts a 128-bit uuid to a 16/32-bit one if possible |
2777 | | * returns true if uuid contains a 16/32-bit UUID at exit |
2778 | | */ |
2779 | | int sdp_uuid128_to_uuid(uuid_t *uuid) |
2780 | 0 | { |
2781 | 0 | const uint128_t *b = &bluetooth_base_uuid; |
2782 | 0 | uint128_t *u = &uuid->value.uuid128; |
2783 | 0 | uint32_t data; |
2784 | 0 | unsigned int i; |
2785 | |
|
2786 | 0 | if (uuid->type != SDP_UUID128) |
2787 | 0 | return 1; |
2788 | | |
2789 | 0 | for (i = 4; i < sizeof(b->data); i++) |
2790 | 0 | if (b->data[i] != u->data[i]) |
2791 | 0 | return 0; |
2792 | | |
2793 | 0 | memcpy(&data, u->data, 4); |
2794 | 0 | data = htonl(data); |
2795 | 0 | if (data <= 0xffff) { |
2796 | 0 | uuid->type = SDP_UUID16; |
2797 | 0 | uuid->value.uuid16 = (uint16_t) data; |
2798 | 0 | } else { |
2799 | 0 | uuid->type = SDP_UUID32; |
2800 | 0 | uuid->value.uuid32 = data; |
2801 | 0 | } |
2802 | 0 | return 1; |
2803 | 0 | } |
2804 | | |
2805 | | /* |
2806 | | * convert a UUID to the 16-bit short-form |
2807 | | */ |
2808 | | int sdp_uuid_to_proto(uuid_t *uuid) |
2809 | 0 | { |
2810 | 0 | uuid_t u = *uuid; |
2811 | 0 | if (sdp_uuid128_to_uuid(&u)) { |
2812 | 0 | switch (u.type) { |
2813 | 0 | case SDP_UUID16: |
2814 | 0 | return u.value.uuid16; |
2815 | 0 | case SDP_UUID32: |
2816 | 0 | return u.value.uuid32; |
2817 | 0 | } |
2818 | 0 | } |
2819 | 0 | return 0; |
2820 | 0 | } |
2821 | | |
2822 | | /* |
2823 | | * This function appends data to the PDU buffer "dst" from source "src". |
2824 | | * The data length is also computed and set. |
2825 | | * Should the PDU length exceed 2^8, then sequence type is |
2826 | | * set accordingly and the data is memmove()'d. |
2827 | | */ |
2828 | | void sdp_append_to_buf(sdp_buf_t *dst, uint8_t *data, uint32_t len) |
2829 | 0 | { |
2830 | 0 | uint8_t *p = dst->data; |
2831 | 0 | uint8_t dtd = *p; |
2832 | |
|
2833 | 0 | SDPDBG("Append src size: %d", len); |
2834 | 0 | SDPDBG("Append dst size: %d", dst->data_size); |
2835 | 0 | SDPDBG("Dst buffer size: %d", dst->buf_size); |
2836 | |
|
2837 | 0 | if (dst->data_size + len > dst->buf_size) { |
2838 | 0 | SDPERR("Cannot append"); |
2839 | 0 | return; |
2840 | 0 | } |
2841 | | |
2842 | 0 | if (dst->data_size == 0 && dtd == 0) { |
2843 | | /* create initial sequence */ |
2844 | 0 | *p = SDP_SEQ8; |
2845 | 0 | dst->data_size += sizeof(uint8_t); |
2846 | | /* reserve space for sequence size */ |
2847 | 0 | dst->data_size += sizeof(uint8_t); |
2848 | 0 | } |
2849 | |
|
2850 | 0 | memcpy(dst->data + dst->data_size, data, len); |
2851 | 0 | dst->data_size += len; |
2852 | |
|
2853 | 0 | dtd = *(uint8_t *) dst->data; |
2854 | 0 | if (dst->data_size > UCHAR_MAX && dtd == SDP_SEQ8) { |
2855 | 0 | short offset = sizeof(uint8_t) + sizeof(uint8_t); |
2856 | 0 | memmove(dst->data + offset + 1, dst->data + offset, |
2857 | 0 | dst->data_size - offset); |
2858 | 0 | *p = SDP_SEQ16; |
2859 | 0 | dst->data_size += 1; |
2860 | 0 | } |
2861 | 0 | dtd = *(uint8_t *) p; |
2862 | 0 | p += sizeof(uint8_t); |
2863 | 0 | switch (dtd) { |
2864 | 0 | case SDP_SEQ8: |
2865 | 0 | *(uint8_t *) p = dst->data_size - sizeof(uint8_t) - sizeof(uint8_t); |
2866 | 0 | break; |
2867 | 0 | case SDP_SEQ16: |
2868 | 0 | bt_put_be16(dst->data_size - sizeof(uint8_t) - sizeof(uint16_t), p); |
2869 | 0 | break; |
2870 | 0 | case SDP_SEQ32: |
2871 | 0 | bt_put_be32(dst->data_size - sizeof(uint8_t) - sizeof(uint32_t), p); |
2872 | 0 | break; |
2873 | 0 | } |
2874 | 0 | } |
2875 | | |
2876 | | void sdp_append_to_pdu(sdp_buf_t *pdu, sdp_data_t *d) |
2877 | 0 | { |
2878 | 0 | sdp_buf_t append; |
2879 | |
|
2880 | 0 | memset(&append, 0, sizeof(sdp_buf_t)); |
2881 | 0 | sdp_gen_buffer(&append, d); |
2882 | 0 | append.data = malloc(append.buf_size); |
2883 | 0 | if (!append.data) |
2884 | 0 | return; |
2885 | | |
2886 | 0 | sdp_set_attrid(&append, d->attrId); |
2887 | 0 | sdp_gen_pdu(&append, d); |
2888 | 0 | sdp_append_to_buf(pdu, append.data, append.data_size); |
2889 | 0 | free(append.data); |
2890 | 0 | } |
2891 | | |
2892 | | /* |
2893 | | * Registers an sdp record. |
2894 | | * |
2895 | | * It is incorrect to call this method on a record that |
2896 | | * has been already registered with the server. |
2897 | | * |
2898 | | * Returns zero on success, otherwise -1 (and sets errno). |
2899 | | */ |
2900 | | int sdp_device_record_register_binary(sdp_session_t *session, bdaddr_t *device, uint8_t *data, uint32_t size, uint8_t flags, uint32_t *handle) |
2901 | 0 | { |
2902 | 0 | uint8_t *req, *rsp, *p; |
2903 | 0 | uint32_t reqsize, rspsize; |
2904 | 0 | sdp_pdu_hdr_t *reqhdr, *rsphdr; |
2905 | 0 | int status; |
2906 | |
|
2907 | 0 | SDPDBG(""); |
2908 | |
|
2909 | 0 | if (!session->local) { |
2910 | 0 | errno = EREMOTE; |
2911 | 0 | return -1; |
2912 | 0 | } |
2913 | 0 | req = malloc(SDP_REQ_BUFFER_SIZE); |
2914 | 0 | rsp = malloc(SDP_RSP_BUFFER_SIZE); |
2915 | 0 | if (req == NULL || rsp == NULL) { |
2916 | 0 | status = -1; |
2917 | 0 | errno = ENOMEM; |
2918 | 0 | goto end; |
2919 | 0 | } |
2920 | | |
2921 | 0 | reqhdr = (sdp_pdu_hdr_t *)req; |
2922 | 0 | reqhdr->pdu_id = SDP_SVC_REGISTER_REQ; |
2923 | 0 | reqhdr->tid = htons(sdp_gen_tid(session)); |
2924 | 0 | reqsize = sizeof(sdp_pdu_hdr_t) + 1; |
2925 | 0 | p = req + sizeof(sdp_pdu_hdr_t); |
2926 | |
|
2927 | 0 | if (bacmp(device, BDADDR_ANY)) { |
2928 | 0 | *p++ = flags | SDP_DEVICE_RECORD; |
2929 | 0 | bacpy((bdaddr_t *) p, device); |
2930 | 0 | p += sizeof(bdaddr_t); |
2931 | 0 | reqsize += sizeof(bdaddr_t); |
2932 | 0 | } else |
2933 | 0 | *p++ = flags; |
2934 | |
|
2935 | 0 | memcpy(p, data, size); |
2936 | 0 | reqsize += size; |
2937 | 0 | reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); |
2938 | |
|
2939 | 0 | status = sdp_send_req_w4_rsp(session, req, rsp, reqsize, &rspsize); |
2940 | 0 | if (status < 0) |
2941 | 0 | goto end; |
2942 | | |
2943 | 0 | if (rspsize < sizeof(sdp_pdu_hdr_t)) { |
2944 | 0 | SDPERR("Unexpected end of packet"); |
2945 | 0 | errno = EPROTO; |
2946 | 0 | status = -1; |
2947 | 0 | goto end; |
2948 | 0 | } |
2949 | | |
2950 | 0 | rsphdr = (sdp_pdu_hdr_t *) rsp; |
2951 | 0 | p = rsp + sizeof(sdp_pdu_hdr_t); |
2952 | |
|
2953 | 0 | if (rsphdr->pdu_id == SDP_ERROR_RSP) { |
2954 | | /* Invalid service record */ |
2955 | 0 | errno = EINVAL; |
2956 | 0 | status = -1; |
2957 | 0 | } else if (rsphdr->pdu_id != SDP_SVC_REGISTER_RSP) { |
2958 | 0 | errno = EPROTO; |
2959 | 0 | status = -1; |
2960 | 0 | } else { |
2961 | 0 | if (rspsize < sizeof(sdp_pdu_hdr_t) + sizeof(uint32_t)) { |
2962 | 0 | SDPERR("Unexpected end of packet"); |
2963 | 0 | errno = EPROTO; |
2964 | 0 | status = -1; |
2965 | 0 | goto end; |
2966 | 0 | } |
2967 | 0 | if (handle) |
2968 | 0 | *handle = bt_get_be32(p); |
2969 | 0 | } |
2970 | | |
2971 | 0 | end: |
2972 | 0 | free(req); |
2973 | 0 | free(rsp); |
2974 | |
|
2975 | 0 | return status; |
2976 | 0 | } |
2977 | | |
2978 | | int sdp_device_record_register(sdp_session_t *session, bdaddr_t *device, sdp_record_t *rec, uint8_t flags) |
2979 | 0 | { |
2980 | 0 | sdp_buf_t pdu; |
2981 | 0 | uint32_t handle; |
2982 | 0 | int err; |
2983 | |
|
2984 | 0 | SDPDBG(""); |
2985 | |
|
2986 | 0 | if (rec->handle && rec->handle != 0xffffffff) { |
2987 | 0 | uint32_t handle = rec->handle; |
2988 | 0 | sdp_data_t *data = sdp_data_alloc(SDP_UINT32, &handle); |
2989 | 0 | sdp_attr_replace(rec, SDP_ATTR_RECORD_HANDLE, data); |
2990 | 0 | } |
2991 | |
|
2992 | 0 | if (sdp_gen_record_pdu(rec, &pdu) < 0) { |
2993 | 0 | errno = ENOMEM; |
2994 | 0 | return -1; |
2995 | 0 | } |
2996 | | |
2997 | 0 | err = sdp_device_record_register_binary(session, device, |
2998 | 0 | pdu.data, pdu.data_size, flags, &handle); |
2999 | |
|
3000 | 0 | free(pdu.data); |
3001 | |
|
3002 | 0 | if (err == 0) { |
3003 | 0 | sdp_data_t *data = sdp_data_alloc(SDP_UINT32, &handle); |
3004 | 0 | rec->handle = handle; |
3005 | 0 | sdp_attr_replace(rec, SDP_ATTR_RECORD_HANDLE, data); |
3006 | 0 | } |
3007 | |
|
3008 | 0 | return err; |
3009 | 0 | } |
3010 | | |
3011 | | int sdp_record_register(sdp_session_t *session, sdp_record_t *rec, uint8_t flags) |
3012 | 0 | { |
3013 | 0 | return sdp_device_record_register(session, BDADDR_ANY, rec, flags); |
3014 | 0 | } |
3015 | | |
3016 | | /* |
3017 | | * unregister a service record |
3018 | | */ |
3019 | | int sdp_device_record_unregister_binary(sdp_session_t *session, bdaddr_t *device, uint32_t handle) |
3020 | 0 | { |
3021 | 0 | uint8_t *reqbuf, *rspbuf, *p; |
3022 | 0 | uint32_t reqsize = 0, rspsize = 0; |
3023 | 0 | sdp_pdu_hdr_t *reqhdr, *rsphdr; |
3024 | 0 | int status; |
3025 | |
|
3026 | 0 | SDPDBG(""); |
3027 | |
|
3028 | 0 | if (handle == SDP_SERVER_RECORD_HANDLE) { |
3029 | 0 | errno = EINVAL; |
3030 | 0 | return -1; |
3031 | 0 | } |
3032 | | |
3033 | 0 | if (!session->local) { |
3034 | 0 | errno = EREMOTE; |
3035 | 0 | return -1; |
3036 | 0 | } |
3037 | | |
3038 | 0 | reqbuf = malloc(SDP_REQ_BUFFER_SIZE); |
3039 | 0 | rspbuf = malloc(SDP_RSP_BUFFER_SIZE); |
3040 | 0 | if (!reqbuf || !rspbuf) { |
3041 | 0 | errno = ENOMEM; |
3042 | 0 | status = -1; |
3043 | 0 | goto end; |
3044 | 0 | } |
3045 | 0 | reqhdr = (sdp_pdu_hdr_t *) reqbuf; |
3046 | 0 | reqhdr->pdu_id = SDP_SVC_REMOVE_REQ; |
3047 | 0 | reqhdr->tid = htons(sdp_gen_tid(session)); |
3048 | |
|
3049 | 0 | p = reqbuf + sizeof(sdp_pdu_hdr_t); |
3050 | 0 | reqsize = sizeof(sdp_pdu_hdr_t); |
3051 | 0 | bt_put_be32(handle, p); |
3052 | 0 | reqsize += sizeof(uint32_t); |
3053 | |
|
3054 | 0 | reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); |
3055 | 0 | status = sdp_send_req_w4_rsp(session, reqbuf, rspbuf, reqsize, &rspsize); |
3056 | 0 | if (status < 0) |
3057 | 0 | goto end; |
3058 | | |
3059 | 0 | if (rspsize < sizeof(sdp_pdu_hdr_t) + sizeof(uint16_t)) { |
3060 | 0 | SDPERR("Unexpected end of packet"); |
3061 | 0 | errno = EPROTO; |
3062 | 0 | status = -1; |
3063 | 0 | goto end; |
3064 | 0 | } |
3065 | | |
3066 | 0 | rsphdr = (sdp_pdu_hdr_t *) rspbuf; |
3067 | 0 | p = rspbuf + sizeof(sdp_pdu_hdr_t); |
3068 | |
|
3069 | 0 | if (rsphdr->pdu_id == SDP_ERROR_RSP) { |
3070 | | /* For this case the status always is invalid record handle */ |
3071 | 0 | errno = EINVAL; |
3072 | 0 | status = -1; |
3073 | 0 | } else if (rsphdr->pdu_id != SDP_SVC_REMOVE_RSP) { |
3074 | 0 | errno = EPROTO; |
3075 | 0 | status = -1; |
3076 | 0 | } else { |
3077 | 0 | uint16_t tmp; |
3078 | |
|
3079 | 0 | memcpy(&tmp, p, sizeof(tmp)); |
3080 | |
|
3081 | 0 | status = tmp; |
3082 | 0 | } |
3083 | 0 | end: |
3084 | 0 | free(reqbuf); |
3085 | 0 | free(rspbuf); |
3086 | |
|
3087 | 0 | return status; |
3088 | 0 | } |
3089 | | |
3090 | | int sdp_device_record_unregister(sdp_session_t *session, bdaddr_t *device, sdp_record_t *rec) |
3091 | 0 | { |
3092 | 0 | int err; |
3093 | |
|
3094 | 0 | err = sdp_device_record_unregister_binary(session, device, rec->handle); |
3095 | 0 | if (err == 0) |
3096 | 0 | sdp_record_free(rec); |
3097 | |
|
3098 | 0 | return err; |
3099 | 0 | } |
3100 | | |
3101 | | int sdp_record_unregister(sdp_session_t *session, sdp_record_t *rec) |
3102 | 0 | { |
3103 | 0 | return sdp_device_record_unregister(session, BDADDR_ANY, rec); |
3104 | 0 | } |
3105 | | |
3106 | | /* |
3107 | | * modify an existing service record |
3108 | | */ |
3109 | | int sdp_device_record_update_binary(sdp_session_t *session, bdaddr_t *device, uint32_t handle, uint8_t *data, uint32_t size) |
3110 | 0 | { |
3111 | 0 | return -1; |
3112 | 0 | } |
3113 | | |
3114 | | int sdp_device_record_update(sdp_session_t *session, bdaddr_t *device, const sdp_record_t *rec) |
3115 | 0 | { |
3116 | 0 | uint8_t *reqbuf, *rspbuf, *p; |
3117 | 0 | uint32_t reqsize, rspsize; |
3118 | 0 | sdp_pdu_hdr_t *reqhdr, *rsphdr; |
3119 | 0 | uint32_t handle; |
3120 | 0 | sdp_buf_t pdu; |
3121 | 0 | int status; |
3122 | |
|
3123 | 0 | SDPDBG(""); |
3124 | |
|
3125 | 0 | handle = rec->handle; |
3126 | |
|
3127 | 0 | if (handle == SDP_SERVER_RECORD_HANDLE) { |
3128 | 0 | errno = EINVAL; |
3129 | 0 | return -1; |
3130 | 0 | } |
3131 | 0 | if (!session->local) { |
3132 | 0 | errno = EREMOTE; |
3133 | 0 | return -1; |
3134 | 0 | } |
3135 | 0 | reqbuf = malloc(SDP_REQ_BUFFER_SIZE); |
3136 | 0 | rspbuf = malloc(SDP_RSP_BUFFER_SIZE); |
3137 | 0 | if (!reqbuf || !rspbuf) { |
3138 | 0 | errno = ENOMEM; |
3139 | 0 | status = -1; |
3140 | 0 | goto end; |
3141 | 0 | } |
3142 | 0 | reqhdr = (sdp_pdu_hdr_t *) reqbuf; |
3143 | 0 | reqhdr->pdu_id = SDP_SVC_UPDATE_REQ; |
3144 | 0 | reqhdr->tid = htons(sdp_gen_tid(session)); |
3145 | |
|
3146 | 0 | p = reqbuf + sizeof(sdp_pdu_hdr_t); |
3147 | 0 | reqsize = sizeof(sdp_pdu_hdr_t); |
3148 | |
|
3149 | 0 | bt_put_be32(handle, p); |
3150 | 0 | reqsize += sizeof(uint32_t); |
3151 | 0 | p += sizeof(uint32_t); |
3152 | |
|
3153 | 0 | if (sdp_gen_record_pdu(rec, &pdu) < 0) { |
3154 | 0 | errno = ENOMEM; |
3155 | 0 | status = -1; |
3156 | 0 | goto end; |
3157 | 0 | } |
3158 | 0 | memcpy(p, pdu.data, pdu.data_size); |
3159 | 0 | reqsize += pdu.data_size; |
3160 | 0 | free(pdu.data); |
3161 | |
|
3162 | 0 | reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); |
3163 | 0 | status = sdp_send_req_w4_rsp(session, reqbuf, rspbuf, reqsize, &rspsize); |
3164 | 0 | if (status < 0) |
3165 | 0 | goto end; |
3166 | | |
3167 | 0 | if (rspsize < sizeof(sdp_pdu_hdr_t) + sizeof(uint16_t)) { |
3168 | 0 | SDPERR("Unexpected end of packet"); |
3169 | 0 | errno = EPROTO; |
3170 | 0 | status = -1; |
3171 | 0 | goto end; |
3172 | 0 | } |
3173 | | |
3174 | 0 | SDPDBG("Send req status : %d", status); |
3175 | |
|
3176 | 0 | rsphdr = (sdp_pdu_hdr_t *) rspbuf; |
3177 | 0 | p = rspbuf + sizeof(sdp_pdu_hdr_t); |
3178 | |
|
3179 | 0 | if (rsphdr->pdu_id == SDP_ERROR_RSP) { |
3180 | | /* The status can be invalid sintax or invalid record handle */ |
3181 | 0 | errno = EINVAL; |
3182 | 0 | status = -1; |
3183 | 0 | } else if (rsphdr->pdu_id != SDP_SVC_UPDATE_RSP) { |
3184 | 0 | errno = EPROTO; |
3185 | 0 | status = -1; |
3186 | 0 | } else { |
3187 | 0 | uint16_t tmp; |
3188 | |
|
3189 | 0 | memcpy(&tmp, p, sizeof(tmp)); |
3190 | |
|
3191 | 0 | status = tmp; |
3192 | 0 | } |
3193 | 0 | end: |
3194 | 0 | free(reqbuf); |
3195 | 0 | free(rspbuf); |
3196 | 0 | return status; |
3197 | 0 | } |
3198 | | |
3199 | | int sdp_record_update(sdp_session_t *session, const sdp_record_t *rec) |
3200 | 0 | { |
3201 | 0 | return sdp_device_record_update(session, BDADDR_ANY, rec); |
3202 | 0 | } |
3203 | | |
3204 | | sdp_record_t *sdp_record_alloc(void) |
3205 | 149 | { |
3206 | 149 | sdp_record_t *rec = bt_malloc0(sizeof(sdp_record_t)); |
3207 | | |
3208 | 149 | if (!rec) |
3209 | 0 | return NULL; |
3210 | | |
3211 | 149 | rec->handle = 0xffffffff; |
3212 | 149 | return rec; |
3213 | 149 | } |
3214 | | |
3215 | | /* |
3216 | | * Free the contents of a service record |
3217 | | */ |
3218 | | void sdp_record_free(sdp_record_t *rec) |
3219 | 149 | { |
3220 | 149 | sdp_list_free(rec->attrlist, (sdp_free_func_t) sdp_data_free); |
3221 | 149 | sdp_list_free(rec->pattern, free); |
3222 | 149 | free(rec); |
3223 | 149 | } |
3224 | | |
3225 | | void sdp_pattern_add_uuid(sdp_record_t *rec, uuid_t *uuid) |
3226 | 264 | { |
3227 | 264 | uuid_t *uuid128 = sdp_uuid_to_uuid128(uuid); |
3228 | | |
3229 | 264 | SDPDBG("Elements in target pattern : %d", sdp_list_len(rec->pattern)); |
3230 | 264 | SDPDBG("Trying to add : 0x%lx", (unsigned long) uuid128); |
3231 | | |
3232 | 264 | if (sdp_list_find(rec->pattern, uuid128, sdp_uuid128_cmp) == NULL) |
3233 | 26 | rec->pattern = sdp_list_insert_sorted(rec->pattern, uuid128, sdp_uuid128_cmp); |
3234 | 238 | else |
3235 | 238 | bt_free(uuid128); |
3236 | | |
3237 | 264 | SDPDBG("Elements in target pattern : %d", sdp_list_len(rec->pattern)); |
3238 | 264 | } |
3239 | | |
3240 | | void sdp_pattern_add_uuidseq(sdp_record_t *rec, sdp_list_t *seq) |
3241 | 0 | { |
3242 | 0 | for (; seq; seq = seq->next) { |
3243 | 0 | uuid_t *uuid = (uuid_t *)seq->data; |
3244 | 0 | sdp_pattern_add_uuid(rec, uuid); |
3245 | 0 | } |
3246 | 0 | } |
3247 | | |
3248 | | /* |
3249 | | * Extract a sequence of service record handles from a PDU buffer |
3250 | | * and add the entries to a sdp_list_t. Note that the service record |
3251 | | * handles are not in "data element sequence" form, but just like |
3252 | | * an array of service handles |
3253 | | */ |
3254 | | static void extract_record_handle_seq(uint8_t *pdu, int bufsize, sdp_list_t **seq, int count, unsigned int *scanned) |
3255 | 0 | { |
3256 | 0 | sdp_list_t *pSeq = *seq; |
3257 | 0 | uint8_t *pdata = pdu; |
3258 | 0 | int n; |
3259 | |
|
3260 | 0 | for (n = 0; n < count; n++) { |
3261 | 0 | uint32_t *pSvcRec; |
3262 | 0 | if (bufsize < (int) sizeof(uint32_t)) { |
3263 | 0 | SDPERR("Unexpected end of packet"); |
3264 | 0 | break; |
3265 | 0 | } |
3266 | 0 | pSvcRec = malloc(sizeof(uint32_t)); |
3267 | 0 | if (!pSvcRec) |
3268 | 0 | break; |
3269 | 0 | *pSvcRec = bt_get_be32(pdata); |
3270 | 0 | pSeq = sdp_list_append(pSeq, pSvcRec); |
3271 | 0 | pdata += sizeof(uint32_t); |
3272 | 0 | *scanned += sizeof(uint32_t); |
3273 | 0 | bufsize -= sizeof(uint32_t); |
3274 | 0 | } |
3275 | 0 | *seq = pSeq; |
3276 | 0 | } |
3277 | | /* |
3278 | | * Generate the attribute sequence pdu form |
3279 | | * from sdp_list_t elements. Return length of attr seq |
3280 | | */ |
3281 | | static int gen_dataseq_pdu(uint8_t *dst, const sdp_list_t *seq, uint8_t dtd) |
3282 | 0 | { |
3283 | 0 | sdp_data_t *dataseq; |
3284 | 0 | void **types, **values; |
3285 | 0 | sdp_buf_t buf; |
3286 | 0 | int i, seqlen = sdp_list_len(seq); |
3287 | | |
3288 | | /* Fill up the value and the dtd arrays */ |
3289 | 0 | SDPDBG(""); |
3290 | |
|
3291 | 0 | SDPDBG("Seq length : %d", seqlen); |
3292 | |
|
3293 | 0 | types = malloc(seqlen * sizeof(void *)); |
3294 | 0 | if (!types) |
3295 | 0 | return -ENOMEM; |
3296 | | |
3297 | 0 | values = malloc(seqlen * sizeof(void *)); |
3298 | 0 | if (!values) { |
3299 | 0 | free(types); |
3300 | 0 | return -ENOMEM; |
3301 | 0 | } |
3302 | | |
3303 | 0 | for (i = 0; i < seqlen; i++) { |
3304 | 0 | void *data = seq->data; |
3305 | 0 | types[i] = &dtd; |
3306 | 0 | if (SDP_IS_UUID(dtd)) |
3307 | 0 | data = &((uuid_t *)data)->value; |
3308 | 0 | values[i] = data; |
3309 | 0 | seq = seq->next; |
3310 | 0 | } |
3311 | |
|
3312 | 0 | dataseq = sdp_seq_alloc(types, values, seqlen); |
3313 | 0 | if (!dataseq) { |
3314 | 0 | free(types); |
3315 | 0 | free(values); |
3316 | 0 | return -ENOMEM; |
3317 | 0 | } |
3318 | | |
3319 | 0 | memset(&buf, 0, sizeof(sdp_buf_t)); |
3320 | 0 | sdp_gen_buffer(&buf, dataseq); |
3321 | 0 | buf.data = malloc(buf.buf_size); |
3322 | |
|
3323 | 0 | if (!buf.data) { |
3324 | 0 | sdp_data_free(dataseq); |
3325 | 0 | free(types); |
3326 | 0 | free(values); |
3327 | 0 | return -ENOMEM; |
3328 | 0 | } |
3329 | | |
3330 | 0 | SDPDBG("Data Seq : 0x%p", seq); |
3331 | 0 | seqlen = sdp_gen_pdu(&buf, dataseq); |
3332 | 0 | SDPDBG("Copying : %d", buf.data_size); |
3333 | 0 | memcpy(dst, buf.data, buf.data_size); |
3334 | |
|
3335 | 0 | sdp_data_free(dataseq); |
3336 | |
|
3337 | 0 | free(types); |
3338 | 0 | free(values); |
3339 | 0 | free(buf.data); |
3340 | 0 | return seqlen; |
3341 | 0 | } |
3342 | | |
3343 | | static int gen_searchseq_pdu(uint8_t *dst, const sdp_list_t *seq) |
3344 | 0 | { |
3345 | 0 | uuid_t *uuid = seq->data; |
3346 | 0 | return gen_dataseq_pdu(dst, seq, uuid->type); |
3347 | 0 | } |
3348 | | |
3349 | | static int gen_attridseq_pdu(uint8_t *dst, const sdp_list_t *seq, uint8_t dataType) |
3350 | 0 | { |
3351 | 0 | return gen_dataseq_pdu(dst, seq, dataType); |
3352 | 0 | } |
3353 | | |
3354 | | typedef struct { |
3355 | | uint8_t length; |
3356 | | unsigned char data[16]; |
3357 | | } __attribute__ ((packed)) sdp_cstate_t; |
3358 | | |
3359 | | static int copy_cstate(uint8_t *pdata, int pdata_len, const sdp_cstate_t *cstate) |
3360 | 0 | { |
3361 | 0 | if (cstate) { |
3362 | 0 | uint8_t len = cstate->length; |
3363 | 0 | if (len >= pdata_len) { |
3364 | 0 | SDPERR("Continuation state size exceeds internal buffer"); |
3365 | 0 | len = pdata_len - 1; |
3366 | 0 | } |
3367 | 0 | *pdata++ = len; |
3368 | 0 | memcpy(pdata, cstate->data, len); |
3369 | 0 | return len + 1; |
3370 | 0 | } |
3371 | 0 | *pdata = 0; |
3372 | 0 | return 1; |
3373 | 0 | } |
3374 | | |
3375 | | /* |
3376 | | * This is a service search request. |
3377 | | * |
3378 | | * INPUT : |
3379 | | * |
3380 | | * sdp_list_t *search |
3381 | | * Singly linked list containing elements of the search |
3382 | | * pattern. Each entry in the list is a UUID (DataTypeSDP_UUID16) |
3383 | | * of the service to be searched |
3384 | | * |
3385 | | * uint16_t max_rec_num |
3386 | | * A 16 bit integer which tells the service, the maximum |
3387 | | * entries that the client can handle in the response. The |
3388 | | * server is obliged not to return > max_rec_num entries |
3389 | | * |
3390 | | * OUTPUT : |
3391 | | * |
3392 | | * int return value |
3393 | | * 0: |
3394 | | * The request completed successfully. This does not |
3395 | | * mean the requested services were found |
3396 | | * -1: |
3397 | | * On any failure and sets errno |
3398 | | * |
3399 | | * sdp_list_t **rsp_list |
3400 | | * This variable is set on a successful return if there are |
3401 | | * non-zero service handles. It is a singly linked list of |
3402 | | * service record handles (uint16_t) |
3403 | | */ |
3404 | | int sdp_service_search_req(sdp_session_t *session, const sdp_list_t *search, |
3405 | | uint16_t max_rec_num, sdp_list_t **rsp) |
3406 | 0 | { |
3407 | 0 | int status = 0; |
3408 | 0 | uint32_t reqsize = 0, _reqsize; |
3409 | 0 | uint32_t rspsize = 0, rsplen; |
3410 | 0 | int seqlen = 0; |
3411 | 0 | int rec_count; |
3412 | 0 | unsigned scanned, pdata_len; |
3413 | 0 | uint8_t *pdata, *_pdata; |
3414 | 0 | uint8_t *reqbuf, *rspbuf; |
3415 | 0 | sdp_pdu_hdr_t *reqhdr, *rsphdr; |
3416 | 0 | sdp_cstate_t *cstate = NULL; |
3417 | |
|
3418 | 0 | reqbuf = malloc(SDP_REQ_BUFFER_SIZE); |
3419 | 0 | rspbuf = malloc(SDP_RSP_BUFFER_SIZE); |
3420 | 0 | if (!reqbuf || !rspbuf) { |
3421 | 0 | errno = ENOMEM; |
3422 | 0 | status = -1; |
3423 | 0 | goto end; |
3424 | 0 | } |
3425 | 0 | reqhdr = (sdp_pdu_hdr_t *) reqbuf; |
3426 | 0 | reqhdr->pdu_id = SDP_SVC_SEARCH_REQ; |
3427 | 0 | pdata = reqbuf + sizeof(sdp_pdu_hdr_t); |
3428 | 0 | reqsize = sizeof(sdp_pdu_hdr_t); |
3429 | | |
3430 | | /* add service class IDs for search */ |
3431 | 0 | seqlen = gen_searchseq_pdu(pdata, search); |
3432 | |
|
3433 | 0 | if (seqlen < 0) { |
3434 | 0 | errno = EINVAL; |
3435 | 0 | status = -1; |
3436 | 0 | goto end; |
3437 | 0 | } |
3438 | | |
3439 | 0 | SDPDBG("Data seq added : %d", seqlen); |
3440 | | |
3441 | | /* set the length and increment the pointer */ |
3442 | 0 | reqsize += seqlen; |
3443 | 0 | pdata += seqlen; |
3444 | | |
3445 | | /* specify the maximum svc rec count that client expects */ |
3446 | 0 | bt_put_be16(max_rec_num, pdata); |
3447 | 0 | reqsize += sizeof(uint16_t); |
3448 | 0 | pdata += sizeof(uint16_t); |
3449 | |
|
3450 | 0 | _reqsize = reqsize; |
3451 | 0 | _pdata = pdata; |
3452 | 0 | *rsp = NULL; |
3453 | |
|
3454 | 0 | do { |
3455 | | /* Add continuation state or NULL (first time) */ |
3456 | 0 | reqsize = _reqsize + copy_cstate(_pdata, |
3457 | 0 | SDP_REQ_BUFFER_SIZE - _reqsize, cstate); |
3458 | | |
3459 | | /* Set the request header's param length */ |
3460 | 0 | reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); |
3461 | |
|
3462 | 0 | reqhdr->tid = htons(sdp_gen_tid(session)); |
3463 | | /* |
3464 | | * Send the request, wait for response and if |
3465 | | * no error, set the appropriate values and return |
3466 | | */ |
3467 | 0 | status = sdp_send_req_w4_rsp(session, reqbuf, rspbuf, reqsize, &rspsize); |
3468 | 0 | if (status < 0) |
3469 | 0 | goto end; |
3470 | | |
3471 | 0 | if (rspsize < sizeof(sdp_pdu_hdr_t)) { |
3472 | 0 | SDPERR("Unexpected end of packet"); |
3473 | 0 | status = -1; |
3474 | 0 | goto end; |
3475 | 0 | } |
3476 | | |
3477 | 0 | rsphdr = (sdp_pdu_hdr_t *) rspbuf; |
3478 | 0 | rsplen = ntohs(rsphdr->plen); |
3479 | |
|
3480 | 0 | if (rsphdr->pdu_id == SDP_ERROR_RSP) { |
3481 | 0 | SDPDBG("Status : 0x%x", rsphdr->pdu_id); |
3482 | 0 | status = -1; |
3483 | 0 | goto end; |
3484 | 0 | } |
3485 | 0 | scanned = 0; |
3486 | 0 | pdata = rspbuf + sizeof(sdp_pdu_hdr_t); |
3487 | 0 | pdata_len = rspsize - sizeof(sdp_pdu_hdr_t); |
3488 | |
|
3489 | 0 | if (pdata_len < sizeof(uint16_t) + sizeof(uint16_t)) { |
3490 | 0 | SDPERR("Unexpected end of packet"); |
3491 | 0 | status = -1; |
3492 | 0 | goto end; |
3493 | 0 | } |
3494 | | |
3495 | | /* net service record match count */ |
3496 | 0 | pdata += sizeof(uint16_t); |
3497 | 0 | scanned += sizeof(uint16_t); |
3498 | 0 | pdata_len -= sizeof(uint16_t); |
3499 | 0 | rec_count = bt_get_be16(pdata); |
3500 | 0 | pdata += sizeof(uint16_t); |
3501 | 0 | scanned += sizeof(uint16_t); |
3502 | 0 | pdata_len -= sizeof(uint16_t); |
3503 | |
|
3504 | 0 | SDPDBG("Current svc count: %d", rec_count); |
3505 | 0 | SDPDBG("ResponseLength: %d", rsplen); |
3506 | |
|
3507 | 0 | if (!rec_count) { |
3508 | 0 | status = -1; |
3509 | 0 | goto end; |
3510 | 0 | } |
3511 | 0 | extract_record_handle_seq(pdata, pdata_len, rsp, rec_count, &scanned); |
3512 | 0 | SDPDBG("BytesScanned : %d", scanned); |
3513 | |
|
3514 | 0 | if (rsplen > scanned) { |
3515 | 0 | uint8_t cstate_len; |
3516 | |
|
3517 | 0 | if (rspsize < sizeof(sdp_pdu_hdr_t) + scanned + sizeof(uint8_t)) { |
3518 | 0 | SDPERR("Unexpected end of packet: continuation state data missing"); |
3519 | 0 | status = -1; |
3520 | 0 | goto end; |
3521 | 0 | } |
3522 | | |
3523 | 0 | pdata = rspbuf + sizeof(sdp_pdu_hdr_t) + scanned; |
3524 | 0 | cstate_len = *(uint8_t *) pdata; |
3525 | 0 | if (cstate_len > 0) { |
3526 | 0 | cstate = (sdp_cstate_t *)pdata; |
3527 | 0 | SDPDBG("Cont state length: %d", cstate_len); |
3528 | 0 | } else |
3529 | 0 | cstate = NULL; |
3530 | 0 | } |
3531 | 0 | } while (cstate); |
3532 | | |
3533 | 0 | end: |
3534 | 0 | free(reqbuf); |
3535 | 0 | free(rspbuf); |
3536 | |
|
3537 | 0 | return status; |
3538 | 0 | } |
3539 | | |
3540 | | /* |
3541 | | * This is a service attribute request. |
3542 | | * |
3543 | | * INPUT : |
3544 | | * |
3545 | | * uint32_t handle |
3546 | | * The handle of the service for which the attribute(s) are |
3547 | | * requested |
3548 | | * |
3549 | | * sdp_attrreq_type_t reqtype |
3550 | | * Attribute identifiers are 16 bit unsigned integers specified |
3551 | | * in one of 2 ways described below : |
3552 | | * SDP_ATTR_REQ_INDIVIDUAL - 16bit individual identifiers |
3553 | | * They are the actual attribute identifiers in ascending order |
3554 | | * |
3555 | | * SDP_ATTR_REQ_RANGE - 32bit identifier range |
3556 | | * The high-order 16bits is the start of range |
3557 | | * the low-order 16bits are the end of range |
3558 | | * 0x0000 to 0xFFFF gets all attributes |
3559 | | * |
3560 | | * sdp_list_t *attrid |
3561 | | * Singly linked list containing attribute identifiers desired. |
3562 | | * Every element is either a uint16_t(attrSpec = SDP_ATTR_REQ_INDIVIDUAL) |
3563 | | * or a uint32_t(attrSpec=SDP_ATTR_REQ_RANGE) |
3564 | | * |
3565 | | * OUTPUT : |
3566 | | * return sdp_record_t * |
3567 | | * 0: |
3568 | | * On any error and sets errno |
3569 | | * !0: |
3570 | | * The service record |
3571 | | */ |
3572 | | sdp_record_t *sdp_service_attr_req(sdp_session_t *session, uint32_t handle, |
3573 | | sdp_attrreq_type_t reqtype, const sdp_list_t *attrids) |
3574 | 0 | { |
3575 | 0 | uint32_t reqsize = 0, _reqsize; |
3576 | 0 | uint32_t rspsize = 0, rsp_count; |
3577 | 0 | int attr_list_len = 0; |
3578 | 0 | int seqlen = 0; |
3579 | 0 | unsigned int pdata_len; |
3580 | 0 | uint8_t *pdata, *_pdata; |
3581 | 0 | uint8_t *reqbuf, *rspbuf; |
3582 | 0 | sdp_pdu_hdr_t *reqhdr, *rsphdr; |
3583 | 0 | sdp_cstate_t *cstate = NULL; |
3584 | 0 | uint8_t cstate_len = 0; |
3585 | 0 | sdp_buf_t rsp_concat_buf; |
3586 | 0 | sdp_record_t *rec = 0; |
3587 | |
|
3588 | 0 | if (reqtype != SDP_ATTR_REQ_INDIVIDUAL && reqtype != SDP_ATTR_REQ_RANGE) { |
3589 | 0 | errno = EINVAL; |
3590 | 0 | return NULL; |
3591 | 0 | } |
3592 | | |
3593 | 0 | memset(&rsp_concat_buf, 0, sizeof(sdp_buf_t)); |
3594 | |
|
3595 | 0 | reqbuf = malloc(SDP_REQ_BUFFER_SIZE); |
3596 | 0 | rspbuf = malloc(SDP_RSP_BUFFER_SIZE); |
3597 | 0 | if (!reqbuf || !rspbuf) { |
3598 | 0 | errno = ENOMEM; |
3599 | 0 | goto end; |
3600 | 0 | } |
3601 | 0 | reqhdr = (sdp_pdu_hdr_t *) reqbuf; |
3602 | 0 | reqhdr->pdu_id = SDP_SVC_ATTR_REQ; |
3603 | |
|
3604 | 0 | pdata = reqbuf + sizeof(sdp_pdu_hdr_t); |
3605 | 0 | reqsize = sizeof(sdp_pdu_hdr_t); |
3606 | | |
3607 | | /* add the service record handle */ |
3608 | 0 | bt_put_be32(handle, pdata); |
3609 | 0 | reqsize += sizeof(uint32_t); |
3610 | 0 | pdata += sizeof(uint32_t); |
3611 | | |
3612 | | /* specify the response limit */ |
3613 | 0 | bt_put_be16(65535, pdata); |
3614 | 0 | reqsize += sizeof(uint16_t); |
3615 | 0 | pdata += sizeof(uint16_t); |
3616 | | |
3617 | | /* get attr seq PDU form */ |
3618 | 0 | seqlen = gen_attridseq_pdu(pdata, attrids, |
3619 | 0 | reqtype == SDP_ATTR_REQ_INDIVIDUAL? SDP_UINT16 : SDP_UINT32); |
3620 | 0 | if (seqlen < 0) { |
3621 | 0 | errno = EINVAL; |
3622 | 0 | goto end; |
3623 | 0 | } |
3624 | 0 | pdata += seqlen; |
3625 | 0 | reqsize += seqlen; |
3626 | 0 | SDPDBG("Attr list length : %d", seqlen); |
3627 | | |
3628 | | /* save before Continuation State */ |
3629 | 0 | _pdata = pdata; |
3630 | 0 | _reqsize = reqsize; |
3631 | |
|
3632 | 0 | do { |
3633 | 0 | int status; |
3634 | | |
3635 | | /* add NULL continuation state */ |
3636 | 0 | reqsize = _reqsize + copy_cstate(_pdata, |
3637 | 0 | SDP_REQ_BUFFER_SIZE - _reqsize, cstate); |
3638 | | |
3639 | | /* set the request header's param length */ |
3640 | 0 | reqhdr->tid = htons(sdp_gen_tid(session)); |
3641 | 0 | reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); |
3642 | |
|
3643 | 0 | status = sdp_send_req_w4_rsp(session, reqbuf, rspbuf, reqsize, &rspsize); |
3644 | 0 | if (status < 0) |
3645 | 0 | goto end; |
3646 | | |
3647 | 0 | if (rspsize < sizeof(sdp_pdu_hdr_t)) { |
3648 | 0 | SDPERR("Unexpected end of packet"); |
3649 | 0 | goto end; |
3650 | 0 | } |
3651 | | |
3652 | 0 | rsphdr = (sdp_pdu_hdr_t *) rspbuf; |
3653 | 0 | if (rsphdr->pdu_id == SDP_ERROR_RSP) { |
3654 | 0 | SDPDBG("PDU ID : 0x%x", rsphdr->pdu_id); |
3655 | 0 | goto end; |
3656 | 0 | } |
3657 | 0 | pdata = rspbuf + sizeof(sdp_pdu_hdr_t); |
3658 | 0 | pdata_len = rspsize - sizeof(sdp_pdu_hdr_t); |
3659 | |
|
3660 | 0 | if (pdata_len < sizeof(uint16_t)) { |
3661 | 0 | SDPERR("Unexpected end of packet"); |
3662 | 0 | goto end; |
3663 | 0 | } |
3664 | | |
3665 | 0 | rsp_count = bt_get_be16(pdata); |
3666 | 0 | attr_list_len += rsp_count; |
3667 | 0 | pdata += sizeof(uint16_t); |
3668 | 0 | pdata_len -= sizeof(uint16_t); |
3669 | | |
3670 | | /* |
3671 | | * if continuation state set need to re-issue request before |
3672 | | * parsing |
3673 | | */ |
3674 | 0 | if (pdata_len < rsp_count + sizeof(uint8_t)) { |
3675 | 0 | SDPERR("Unexpected end of packet: continuation state data missing"); |
3676 | 0 | goto end; |
3677 | 0 | } |
3678 | 0 | cstate_len = *(uint8_t *) (pdata + rsp_count); |
3679 | |
|
3680 | 0 | SDPDBG("Response id : %d", rsphdr->pdu_id); |
3681 | 0 | SDPDBG("Attrlist byte count : %d", rsp_count); |
3682 | 0 | SDPDBG("sdp_cstate_t length : %d", cstate_len); |
3683 | | |
3684 | | /* |
3685 | | * a split response: concatenate intermediate responses |
3686 | | * and the last one (which has cstate_len == 0) |
3687 | | */ |
3688 | 0 | if (cstate_len > 0 || rsp_concat_buf.data_size != 0) { |
3689 | 0 | uint8_t *targetPtr = NULL; |
3690 | |
|
3691 | 0 | cstate = cstate_len > 0 ? (sdp_cstate_t *) (pdata + rsp_count) : 0; |
3692 | | |
3693 | | /* build concatenated response buffer */ |
3694 | 0 | rsp_concat_buf.data = realloc(rsp_concat_buf.data, rsp_concat_buf.data_size + rsp_count); |
3695 | 0 | rsp_concat_buf.buf_size = rsp_concat_buf.data_size + rsp_count; |
3696 | 0 | targetPtr = rsp_concat_buf.data + rsp_concat_buf.data_size; |
3697 | 0 | memcpy(targetPtr, pdata, rsp_count); |
3698 | 0 | rsp_concat_buf.data_size += rsp_count; |
3699 | 0 | } |
3700 | 0 | } while (cstate); |
3701 | | |
3702 | 0 | if (attr_list_len > 0) { |
3703 | 0 | int scanned = 0; |
3704 | 0 | if (rsp_concat_buf.data_size != 0) { |
3705 | 0 | pdata = rsp_concat_buf.data; |
3706 | 0 | pdata_len = rsp_concat_buf.data_size; |
3707 | 0 | } |
3708 | 0 | rec = sdp_extract_pdu(pdata, pdata_len, &scanned); |
3709 | 0 | } |
3710 | |
|
3711 | 0 | end: |
3712 | 0 | free(reqbuf); |
3713 | 0 | free(rsp_concat_buf.data); |
3714 | 0 | free(rspbuf); |
3715 | 0 | return rec; |
3716 | 0 | } |
3717 | | |
3718 | | /* |
3719 | | * SDP transaction structure for asynchronous search |
3720 | | */ |
3721 | | struct sdp_transaction { |
3722 | | sdp_callback_t *cb; /* called when the transaction finishes */ |
3723 | | void *udata; /* client user data */ |
3724 | | uint8_t *reqbuf; /* pointer to request PDU */ |
3725 | | sdp_buf_t rsp_concat_buf; |
3726 | | uint32_t reqsize; /* without cstate */ |
3727 | | int err; /* ZERO if success or the errno if failed */ |
3728 | | }; |
3729 | | |
3730 | | /* |
3731 | | * Creates a new sdp session for asynchronous search |
3732 | | * INPUT: |
3733 | | * int sk |
3734 | | * non-blocking L2CAP socket |
3735 | | * |
3736 | | * RETURN: |
3737 | | * sdp_session_t * |
3738 | | * NULL - On memory allocation failure |
3739 | | */ |
3740 | | sdp_session_t *sdp_create(int sk, uint32_t flags) |
3741 | 0 | { |
3742 | 0 | sdp_session_t *session; |
3743 | 0 | struct sdp_transaction *t; |
3744 | |
|
3745 | 0 | session = bt_malloc0(sizeof(sdp_session_t)); |
3746 | 0 | if (!session) { |
3747 | 0 | errno = ENOMEM; |
3748 | 0 | return NULL; |
3749 | 0 | } |
3750 | | |
3751 | 0 | session->flags = flags; |
3752 | 0 | session->sock = sk; |
3753 | |
|
3754 | 0 | t = bt_malloc0(sizeof(struct sdp_transaction)); |
3755 | 0 | if (!t) { |
3756 | 0 | errno = ENOMEM; |
3757 | 0 | free(session); |
3758 | 0 | return NULL; |
3759 | 0 | } |
3760 | | |
3761 | 0 | session->priv = t; |
3762 | |
|
3763 | 0 | return session; |
3764 | 0 | } |
3765 | | |
3766 | | /* |
3767 | | * Sets the callback function/user data used to notify the application |
3768 | | * that the asynchronous transaction finished. This function must be |
3769 | | * called before request an asynchronous search. |
3770 | | * |
3771 | | * INPUT: |
3772 | | * sdp_session_t *session |
3773 | | * Current sdp session to be handled |
3774 | | * sdp_callback_t *cb |
3775 | | * callback to be called when the transaction finishes |
3776 | | * void *udata |
3777 | | * user data passed to callback |
3778 | | * RETURN: |
3779 | | * 0 - Success |
3780 | | * -1 - Failure |
3781 | | */ |
3782 | | int sdp_set_notify(sdp_session_t *session, sdp_callback_t *func, void *udata) |
3783 | 0 | { |
3784 | 0 | struct sdp_transaction *t; |
3785 | |
|
3786 | 0 | if (!session || !session->priv) |
3787 | 0 | return -1; |
3788 | | |
3789 | 0 | t = session->priv; |
3790 | 0 | t->cb = func; |
3791 | 0 | t->udata = udata; |
3792 | |
|
3793 | 0 | return 0; |
3794 | 0 | } |
3795 | | |
3796 | | /* |
3797 | | * This function starts an asynchronous service search request. |
3798 | | * The incoming and outgoing data are stored in the transaction structure |
3799 | | * buffers. When there is incoming data the sdp_process function must be |
3800 | | * called to get the data and handle the continuation state. |
3801 | | * |
3802 | | * INPUT : |
3803 | | * sdp_session_t *session |
3804 | | * Current sdp session to be handled |
3805 | | * |
3806 | | * sdp_list_t *search |
3807 | | * Singly linked list containing elements of the search |
3808 | | * pattern. Each entry in the list is a UUID (DataTypeSDP_UUID16) |
3809 | | * of the service to be searched |
3810 | | * |
3811 | | * uint16_t max_rec_num |
3812 | | * A 16 bit integer which tells the service, the maximum |
3813 | | * entries that the client can handle in the response. The |
3814 | | * server is obliged not to return > max_rec_num entries |
3815 | | * |
3816 | | * OUTPUT : |
3817 | | * |
3818 | | * int return value |
3819 | | * 0 - if the request has been sent properly |
3820 | | * -1 - On any failure and sets errno |
3821 | | */ |
3822 | | |
3823 | | int sdp_service_search_async(sdp_session_t *session, const sdp_list_t *search, uint16_t max_rec_num) |
3824 | 0 | { |
3825 | 0 | struct sdp_transaction *t; |
3826 | 0 | sdp_pdu_hdr_t *reqhdr; |
3827 | 0 | uint8_t *pdata; |
3828 | 0 | int cstate_len, seqlen = 0; |
3829 | |
|
3830 | 0 | if (!session || !session->priv) |
3831 | 0 | return -1; |
3832 | | |
3833 | 0 | t = session->priv; |
3834 | | |
3835 | | /* clean possible allocated buffer */ |
3836 | 0 | free(t->rsp_concat_buf.data); |
3837 | 0 | memset(&t->rsp_concat_buf, 0, sizeof(sdp_buf_t)); |
3838 | |
|
3839 | 0 | if (!t->reqbuf) { |
3840 | 0 | t->reqbuf = malloc(SDP_REQ_BUFFER_SIZE); |
3841 | 0 | if (!t->reqbuf) { |
3842 | 0 | t->err = ENOMEM; |
3843 | 0 | goto end; |
3844 | 0 | } |
3845 | 0 | } |
3846 | 0 | memset(t->reqbuf, 0, SDP_REQ_BUFFER_SIZE); |
3847 | |
|
3848 | 0 | reqhdr = (sdp_pdu_hdr_t *) t->reqbuf; |
3849 | 0 | reqhdr->tid = htons(sdp_gen_tid(session)); |
3850 | 0 | reqhdr->pdu_id = SDP_SVC_SEARCH_REQ; |
3851 | | |
3852 | | /* generate PDU */ |
3853 | 0 | pdata = t->reqbuf + sizeof(sdp_pdu_hdr_t); |
3854 | 0 | t->reqsize = sizeof(sdp_pdu_hdr_t); |
3855 | | |
3856 | | /* add service class IDs for search */ |
3857 | 0 | seqlen = gen_searchseq_pdu(pdata, search); |
3858 | |
|
3859 | 0 | if (seqlen < 0) { |
3860 | 0 | t->err = EINVAL; |
3861 | 0 | goto end; |
3862 | 0 | } |
3863 | | |
3864 | 0 | SDPDBG("Data seq added : %d", seqlen); |
3865 | | |
3866 | | /* now set the length and increment the pointer */ |
3867 | 0 | t->reqsize += seqlen; |
3868 | 0 | pdata += seqlen; |
3869 | |
|
3870 | 0 | bt_put_be16(max_rec_num, pdata); |
3871 | 0 | t->reqsize += sizeof(uint16_t); |
3872 | 0 | pdata += sizeof(uint16_t); |
3873 | | |
3874 | | /* set the request header's param length */ |
3875 | 0 | cstate_len = copy_cstate(pdata, SDP_REQ_BUFFER_SIZE - t->reqsize, NULL); |
3876 | 0 | reqhdr->plen = htons((t->reqsize + cstate_len) - sizeof(sdp_pdu_hdr_t)); |
3877 | |
|
3878 | 0 | if (sdp_send_req(session, t->reqbuf, t->reqsize + cstate_len) < 0) { |
3879 | 0 | SDPERR("Error sending data:%m"); |
3880 | 0 | t->err = errno; |
3881 | 0 | goto end; |
3882 | 0 | } |
3883 | | |
3884 | 0 | return 0; |
3885 | 0 | end: |
3886 | |
|
3887 | 0 | free(t->reqbuf); |
3888 | 0 | t->reqbuf = NULL; |
3889 | |
|
3890 | 0 | return -1; |
3891 | 0 | } |
3892 | | |
3893 | | /* |
3894 | | * This function starts an asynchronous service attribute request. |
3895 | | * The incoming and outgoing data are stored in the transaction structure |
3896 | | * buffers. When there is incoming data the sdp_process function must be |
3897 | | * called to get the data and handle the continuation state. |
3898 | | * |
3899 | | * INPUT : |
3900 | | * sdp_session_t *session |
3901 | | * Current sdp session to be handled |
3902 | | * |
3903 | | * uint32_t handle |
3904 | | * The handle of the service for which the attribute(s) are |
3905 | | * requested |
3906 | | * |
3907 | | * sdp_attrreq_type_t reqtype |
3908 | | * Attribute identifiers are 16 bit unsigned integers specified |
3909 | | * in one of 2 ways described below : |
3910 | | * SDP_ATTR_REQ_INDIVIDUAL - 16bit individual identifiers |
3911 | | * They are the actual attribute identifiers in ascending order |
3912 | | * |
3913 | | * SDP_ATTR_REQ_RANGE - 32bit identifier range |
3914 | | * The high-order 16bits is the start of range |
3915 | | * the low-order 16bits are the end of range |
3916 | | * 0x0000 to 0xFFFF gets all attributes |
3917 | | * |
3918 | | * sdp_list_t *attrid_list |
3919 | | * Singly linked list containing attribute identifiers desired. |
3920 | | * Every element is either a uint16_t(attrSpec = SDP_ATTR_REQ_INDIVIDUAL) |
3921 | | * or a uint32_t(attrSpec=SDP_ATTR_REQ_RANGE) |
3922 | | * |
3923 | | * OUTPUT : |
3924 | | * int return value |
3925 | | * 0 - if the request has been sent properly |
3926 | | * -1 - On any failure and sets errno |
3927 | | */ |
3928 | | |
3929 | | int sdp_service_attr_async(sdp_session_t *session, uint32_t handle, sdp_attrreq_type_t reqtype, const sdp_list_t *attrid_list) |
3930 | 0 | { |
3931 | 0 | struct sdp_transaction *t; |
3932 | 0 | sdp_pdu_hdr_t *reqhdr; |
3933 | 0 | uint8_t *pdata; |
3934 | 0 | int cstate_len, seqlen = 0; |
3935 | |
|
3936 | 0 | if (!session || !session->priv) |
3937 | 0 | return -1; |
3938 | | |
3939 | 0 | t = session->priv; |
3940 | | |
3941 | | /* clean possible allocated buffer */ |
3942 | 0 | free(t->rsp_concat_buf.data); |
3943 | 0 | memset(&t->rsp_concat_buf, 0, sizeof(sdp_buf_t)); |
3944 | |
|
3945 | 0 | if (!t->reqbuf) { |
3946 | 0 | t->reqbuf = malloc(SDP_REQ_BUFFER_SIZE); |
3947 | 0 | if (!t->reqbuf) { |
3948 | 0 | t->err = ENOMEM; |
3949 | 0 | goto end; |
3950 | 0 | } |
3951 | 0 | } |
3952 | 0 | memset(t->reqbuf, 0, SDP_REQ_BUFFER_SIZE); |
3953 | |
|
3954 | 0 | reqhdr = (sdp_pdu_hdr_t *) t->reqbuf; |
3955 | 0 | reqhdr->tid = htons(sdp_gen_tid(session)); |
3956 | 0 | reqhdr->pdu_id = SDP_SVC_ATTR_REQ; |
3957 | | |
3958 | | /* generate PDU */ |
3959 | 0 | pdata = t->reqbuf + sizeof(sdp_pdu_hdr_t); |
3960 | 0 | t->reqsize = sizeof(sdp_pdu_hdr_t); |
3961 | | |
3962 | | /* add the service record handle */ |
3963 | 0 | bt_put_be32(handle, pdata); |
3964 | 0 | t->reqsize += sizeof(uint32_t); |
3965 | 0 | pdata += sizeof(uint32_t); |
3966 | | |
3967 | | /* specify the response limit */ |
3968 | 0 | bt_put_be16(65535, pdata); |
3969 | 0 | t->reqsize += sizeof(uint16_t); |
3970 | 0 | pdata += sizeof(uint16_t); |
3971 | | |
3972 | | /* get attr seq PDU form */ |
3973 | 0 | seqlen = gen_attridseq_pdu(pdata, attrid_list, |
3974 | 0 | reqtype == SDP_ATTR_REQ_INDIVIDUAL? SDP_UINT16 : SDP_UINT32); |
3975 | 0 | if (seqlen < 0) { |
3976 | 0 | t->err = EINVAL; |
3977 | 0 | goto end; |
3978 | 0 | } |
3979 | | |
3980 | | /* now set the length and increment the pointer */ |
3981 | 0 | t->reqsize += seqlen; |
3982 | 0 | pdata += seqlen; |
3983 | 0 | SDPDBG("Attr list length : %d", seqlen); |
3984 | | |
3985 | | /* set the request header's param length */ |
3986 | 0 | cstate_len = copy_cstate(pdata, SDP_REQ_BUFFER_SIZE - t->reqsize, NULL); |
3987 | 0 | reqhdr->plen = htons((t->reqsize + cstate_len) - sizeof(sdp_pdu_hdr_t)); |
3988 | |
|
3989 | 0 | if (sdp_send_req(session, t->reqbuf, t->reqsize + cstate_len) < 0) { |
3990 | 0 | SDPERR("Error sending data:%m"); |
3991 | 0 | t->err = errno; |
3992 | 0 | goto end; |
3993 | 0 | } |
3994 | | |
3995 | 0 | return 0; |
3996 | 0 | end: |
3997 | |
|
3998 | 0 | free(t->reqbuf); |
3999 | 0 | t->reqbuf = NULL; |
4000 | |
|
4001 | 0 | return -1; |
4002 | 0 | } |
4003 | | |
4004 | | /* |
4005 | | * This function starts an asynchronous service search attributes. |
4006 | | * It is a service search request combined with attribute request. The incoming |
4007 | | * and outgoing data are stored in the transaction structure buffers. When there |
4008 | | * is incoming data the sdp_process function must be called to get the data |
4009 | | * and handle the continuation state. |
4010 | | * |
4011 | | * INPUT: |
4012 | | * sdp_session_t *session |
4013 | | * Current sdp session to be handled |
4014 | | * |
4015 | | * sdp_list_t *search |
4016 | | * Singly linked list containing elements of the search |
4017 | | * pattern. Each entry in the list is a UUID(DataTypeSDP_UUID16) |
4018 | | * of the service to be searched |
4019 | | * |
4020 | | * AttributeSpecification attrSpec |
4021 | | * Attribute identifiers are 16 bit unsigned integers specified |
4022 | | * in one of 2 ways described below : |
4023 | | * SDP_ATTR_REQ_INDIVIDUAL - 16bit individual identifiers |
4024 | | * They are the actual attribute identifiers in ascending order |
4025 | | * |
4026 | | * SDP_ATTR_REQ_RANGE - 32bit identifier range |
4027 | | * The high-order 16bits is the start of range |
4028 | | * the low-order 16bits are the end of range |
4029 | | * 0x0000 to 0xFFFF gets all attributes |
4030 | | * |
4031 | | * sdp_list_t *attrid_list |
4032 | | * Singly linked list containing attribute identifiers desired. |
4033 | | * Every element is either a uint16_t(attrSpec = SDP_ATTR_REQ_INDIVIDUAL) |
4034 | | * or a uint32_t(attrSpec=SDP_ATTR_REQ_RANGE) |
4035 | | * |
4036 | | |
4037 | | * RETURN: |
4038 | | * 0 - if the request has been sent properly |
4039 | | * -1 - On any failure |
4040 | | */ |
4041 | | int sdp_service_search_attr_async(sdp_session_t *session, const sdp_list_t *search, sdp_attrreq_type_t reqtype, const sdp_list_t *attrid_list) |
4042 | 0 | { |
4043 | 0 | struct sdp_transaction *t; |
4044 | 0 | sdp_pdu_hdr_t *reqhdr; |
4045 | 0 | uint8_t *pdata; |
4046 | 0 | int cstate_len, seqlen = 0; |
4047 | |
|
4048 | 0 | if (!session || !session->priv) |
4049 | 0 | return -1; |
4050 | | |
4051 | 0 | t = session->priv; |
4052 | | |
4053 | | /* clean possible allocated buffer */ |
4054 | 0 | free(t->rsp_concat_buf.data); |
4055 | 0 | memset(&t->rsp_concat_buf, 0, sizeof(sdp_buf_t)); |
4056 | |
|
4057 | 0 | if (!t->reqbuf) { |
4058 | 0 | t->reqbuf = malloc(SDP_REQ_BUFFER_SIZE); |
4059 | 0 | if (!t->reqbuf) { |
4060 | 0 | t->err = ENOMEM; |
4061 | 0 | goto end; |
4062 | 0 | } |
4063 | 0 | } |
4064 | 0 | memset(t->reqbuf, 0, SDP_REQ_BUFFER_SIZE); |
4065 | |
|
4066 | 0 | reqhdr = (sdp_pdu_hdr_t *) t->reqbuf; |
4067 | 0 | reqhdr->tid = htons(sdp_gen_tid(session)); |
4068 | 0 | reqhdr->pdu_id = SDP_SVC_SEARCH_ATTR_REQ; |
4069 | | |
4070 | | /* generate PDU */ |
4071 | 0 | pdata = t->reqbuf + sizeof(sdp_pdu_hdr_t); |
4072 | 0 | t->reqsize = sizeof(sdp_pdu_hdr_t); |
4073 | | |
4074 | | /* add service class IDs for search */ |
4075 | 0 | seqlen = gen_searchseq_pdu(pdata, search); |
4076 | |
|
4077 | 0 | if (seqlen < 0) { |
4078 | 0 | t->err = EINVAL; |
4079 | 0 | goto end; |
4080 | 0 | } |
4081 | | |
4082 | 0 | SDPDBG("Data seq added : %d", seqlen); |
4083 | | |
4084 | | /* now set the length and increment the pointer */ |
4085 | 0 | t->reqsize += seqlen; |
4086 | 0 | pdata += seqlen; |
4087 | |
|
4088 | 0 | bt_put_be16(SDP_MAX_ATTR_LEN, pdata); |
4089 | 0 | t->reqsize += sizeof(uint16_t); |
4090 | 0 | pdata += sizeof(uint16_t); |
4091 | |
|
4092 | 0 | SDPDBG("Max attr byte count : %d", SDP_MAX_ATTR_LEN); |
4093 | | |
4094 | | /* get attr seq PDU form */ |
4095 | 0 | seqlen = gen_attridseq_pdu(pdata, attrid_list, |
4096 | 0 | reqtype == SDP_ATTR_REQ_INDIVIDUAL ? SDP_UINT16 : SDP_UINT32); |
4097 | 0 | if (seqlen < 0) { |
4098 | 0 | t->err = EINVAL; |
4099 | 0 | goto end; |
4100 | 0 | } |
4101 | | |
4102 | 0 | pdata += seqlen; |
4103 | 0 | SDPDBG("Attr list length : %d", seqlen); |
4104 | 0 | t->reqsize += seqlen; |
4105 | | |
4106 | | /* set the request header's param length */ |
4107 | 0 | cstate_len = copy_cstate(pdata, SDP_REQ_BUFFER_SIZE - t->reqsize, NULL); |
4108 | 0 | reqhdr->plen = htons((t->reqsize + cstate_len) - sizeof(sdp_pdu_hdr_t)); |
4109 | |
|
4110 | 0 | if (sdp_send_req(session, t->reqbuf, t->reqsize + cstate_len) < 0) { |
4111 | 0 | SDPERR("Error sending data:%m"); |
4112 | 0 | t->err = errno; |
4113 | 0 | goto end; |
4114 | 0 | } |
4115 | | |
4116 | 0 | return 0; |
4117 | 0 | end: |
4118 | |
|
4119 | 0 | free(t->reqbuf); |
4120 | 0 | t->reqbuf = NULL; |
4121 | |
|
4122 | 0 | return -1; |
4123 | 0 | } |
4124 | | |
4125 | | /* |
4126 | | * Function used to get the error reason after sdp_callback_t function has been called |
4127 | | * and the status is 0xffff or if sdp_service_{search, attr, search_attr}_async returns -1. |
4128 | | * It indicates that an error NOT related to SDP_ErrorResponse happened. Get errno directly |
4129 | | * is not safe because multiple transactions can be triggered. |
4130 | | * This function must be used with asynchronous sdp functions only. |
4131 | | * |
4132 | | * INPUT: |
4133 | | * sdp_session_t *session |
4134 | | * Current sdp session to be handled |
4135 | | * RETURN: |
4136 | | * 0 = No error in the current transaction |
4137 | | * -1 - if the session is invalid |
4138 | | * positive value - the errno value |
4139 | | * |
4140 | | */ |
4141 | | int sdp_get_error(sdp_session_t *session) |
4142 | 0 | { |
4143 | 0 | struct sdp_transaction *t; |
4144 | |
|
4145 | 0 | if (!session || !session->priv) { |
4146 | 0 | SDPERR("Invalid session"); |
4147 | 0 | return -1; |
4148 | 0 | } |
4149 | | |
4150 | 0 | t = session->priv; |
4151 | |
|
4152 | 0 | return t->err; |
4153 | 0 | } |
4154 | | |
4155 | | /* |
4156 | | * Receive the incoming SDP PDU. This function must be called when there is data |
4157 | | * available to be read. On continuation state, the original request (with a new |
4158 | | * transaction ID) and the continuation state data will be appended in the initial PDU. |
4159 | | * If an error happens or the transaction finishes the callback function will be called. |
4160 | | * |
4161 | | * INPUT: |
4162 | | * sdp_session_t *session |
4163 | | * Current sdp session to be handled |
4164 | | * RETURN: |
4165 | | * 0 - if the transaction is on continuation state |
4166 | | * -1 - On any failure or the transaction finished |
4167 | | */ |
4168 | | int sdp_process(sdp_session_t *session) |
4169 | 0 | { |
4170 | 0 | struct sdp_transaction *t; |
4171 | 0 | sdp_pdu_hdr_t *reqhdr, *rsphdr; |
4172 | 0 | sdp_cstate_t *pcstate; |
4173 | 0 | uint8_t *pdata, *rspbuf, *targetPtr; |
4174 | 0 | int rsp_count, err = -1; |
4175 | 0 | size_t size = 0; |
4176 | 0 | int n, plen; |
4177 | 0 | uint16_t status = 0xffff; |
4178 | 0 | uint8_t pdu_id = 0x00; |
4179 | |
|
4180 | 0 | if (!session || !session->priv) { |
4181 | 0 | SDPERR("Invalid session"); |
4182 | 0 | return -1; |
4183 | 0 | } |
4184 | | |
4185 | 0 | rspbuf = bt_malloc0(SDP_RSP_BUFFER_SIZE); |
4186 | 0 | if (!rspbuf) { |
4187 | 0 | SDPERR("Response buffer alloc failure:%m (%d)", errno); |
4188 | 0 | return -1; |
4189 | 0 | } |
4190 | | |
4191 | | |
4192 | 0 | t = session->priv; |
4193 | 0 | reqhdr = (sdp_pdu_hdr_t *)t->reqbuf; |
4194 | 0 | rsphdr = (sdp_pdu_hdr_t *)rspbuf; |
4195 | |
|
4196 | 0 | pdata = rspbuf + sizeof(sdp_pdu_hdr_t); |
4197 | |
|
4198 | 0 | n = sdp_read_rsp(session, rspbuf, SDP_RSP_BUFFER_SIZE); |
4199 | 0 | if (n < 0) { |
4200 | 0 | SDPERR("Read response:%m (%d)", errno); |
4201 | 0 | t->err = errno; |
4202 | 0 | goto end; |
4203 | 0 | } |
4204 | | |
4205 | 0 | if (reqhdr->tid != rsphdr->tid) { |
4206 | 0 | t->err = EPROTO; |
4207 | 0 | SDPERR("Protocol error: transaction id does not match"); |
4208 | 0 | goto end; |
4209 | 0 | } |
4210 | | |
4211 | 0 | if (n != (int) (ntohs(rsphdr->plen) + sizeof(sdp_pdu_hdr_t))) { |
4212 | 0 | t->err = EPROTO; |
4213 | 0 | SDPERR("Protocol error: invalid length"); |
4214 | 0 | goto end; |
4215 | 0 | } |
4216 | | |
4217 | 0 | pdu_id = rsphdr->pdu_id; |
4218 | 0 | switch (rsphdr->pdu_id) { |
4219 | 0 | uint8_t *ssr_pdata; |
4220 | 0 | uint16_t tsrc, csrc; |
4221 | 0 | case SDP_SVC_SEARCH_RSP: |
4222 | | /* |
4223 | | * TSRC: Total Service Record Count (2 bytes) |
4224 | | * CSRC: Current Service Record Count (2 bytes) |
4225 | | */ |
4226 | 0 | ssr_pdata = pdata; |
4227 | 0 | tsrc = bt_get_be16(ssr_pdata); |
4228 | 0 | ssr_pdata += sizeof(uint16_t); |
4229 | 0 | csrc = bt_get_be16(ssr_pdata); |
4230 | | |
4231 | | /* csrc should never be larger than tsrc */ |
4232 | 0 | if (csrc > tsrc) { |
4233 | 0 | t->err = EPROTO; |
4234 | 0 | SDPERR("Protocol error: wrong current service record count value."); |
4235 | 0 | goto end; |
4236 | 0 | } |
4237 | | |
4238 | 0 | SDPDBG("Total svc count: %d", tsrc); |
4239 | 0 | SDPDBG("Current svc count: %d", csrc); |
4240 | | |
4241 | | /* parameter length without continuation state */ |
4242 | 0 | plen = sizeof(tsrc) + sizeof(csrc) + csrc * 4; |
4243 | |
|
4244 | 0 | if (t->rsp_concat_buf.data_size == 0) { |
4245 | | /* first fragment */ |
4246 | 0 | rsp_count = sizeof(tsrc) + sizeof(csrc) + csrc * 4; |
4247 | 0 | } else if (t->rsp_concat_buf.data_size >= sizeof(uint16_t) * 2) { |
4248 | | /* point to the first csrc */ |
4249 | 0 | uint8_t *pcsrc = t->rsp_concat_buf.data + 2; |
4250 | 0 | uint16_t tcsrc, tcsrc2; |
4251 | | |
4252 | | /* FIXME: update the interface later. csrc doesn't need be passed to clients */ |
4253 | |
|
4254 | 0 | pdata += sizeof(uint16_t); /* point to csrc */ |
4255 | | |
4256 | | /* the first csrc contains the sum of partial csrc responses */ |
4257 | 0 | memcpy(&tcsrc, pcsrc, sizeof(tcsrc)); |
4258 | 0 | memcpy(&tcsrc2, pdata, sizeof(tcsrc2)); |
4259 | 0 | tcsrc += tcsrc2; |
4260 | 0 | memcpy(pcsrc, &tcsrc, sizeof(tcsrc)); |
4261 | |
|
4262 | 0 | pdata += sizeof(uint16_t); /* point to the first handle */ |
4263 | 0 | rsp_count = csrc * 4; |
4264 | 0 | } else { |
4265 | 0 | t->err = EPROTO; |
4266 | 0 | SDPERR("Protocol error: invalid PDU size"); |
4267 | 0 | status = SDP_INVALID_PDU_SIZE; |
4268 | 0 | goto end; |
4269 | 0 | } |
4270 | 0 | status = 0x0000; |
4271 | 0 | break; |
4272 | 0 | case SDP_SVC_ATTR_RSP: |
4273 | 0 | case SDP_SVC_SEARCH_ATTR_RSP: |
4274 | 0 | rsp_count = bt_get_be16(pdata); |
4275 | 0 | SDPDBG("Attrlist byte count : %d", rsp_count); |
4276 | | |
4277 | | /* Valid range for rsp_count is 0x0002-0xFFFF */ |
4278 | 0 | if (t->rsp_concat_buf.data_size == 0 && rsp_count < 0x0002) { |
4279 | 0 | t->err = EPROTO; |
4280 | 0 | SDPERR("Protocol error: invalid AttrList size"); |
4281 | 0 | status = SDP_INVALID_PDU_SIZE; |
4282 | 0 | goto end; |
4283 | 0 | } |
4284 | | |
4285 | | /* |
4286 | | * Number of bytes in the AttributeLists parameter(without |
4287 | | * continuation state) + AttributeListsByteCount field size. |
4288 | | */ |
4289 | 0 | plen = sizeof(uint16_t) + rsp_count; |
4290 | |
|
4291 | 0 | pdata += sizeof(uint16_t); /* points to attribute list */ |
4292 | 0 | status = 0x0000; |
4293 | 0 | break; |
4294 | 0 | case SDP_ERROR_RSP: |
4295 | 0 | status = bt_get_be16(pdata); |
4296 | 0 | size = ntohs(rsphdr->plen); |
4297 | |
|
4298 | 0 | goto end; |
4299 | 0 | default: |
4300 | 0 | t->err = EPROTO; |
4301 | 0 | SDPERR("Illegal PDU ID: 0x%x", rsphdr->pdu_id); |
4302 | 0 | goto end; |
4303 | 0 | } |
4304 | | |
4305 | | /* Out of bound check before using rsp_count as offset for |
4306 | | * continuation state, which has at least a one byte size |
4307 | | * field. |
4308 | | */ |
4309 | 0 | if ((n - (int) sizeof(sdp_pdu_hdr_t)) < plen + 1) { |
4310 | 0 | t->err = EPROTO; |
4311 | 0 | SDPERR("Protocol error: invalid PDU size"); |
4312 | 0 | status = SDP_INVALID_PDU_SIZE; |
4313 | 0 | goto end; |
4314 | 0 | } |
4315 | | |
4316 | 0 | pcstate = (sdp_cstate_t *) (pdata + rsp_count); |
4317 | |
|
4318 | 0 | SDPDBG("Cstate length : %d", pcstate->length); |
4319 | | |
4320 | | /* |
4321 | | * Check out of bound. Continuation state must have at least |
4322 | | * 1 byte: ZERO to indicate that it is not a partial response. |
4323 | | */ |
4324 | 0 | if ((n - (int) sizeof(sdp_pdu_hdr_t)) != (plen + pcstate->length + 1)) { |
4325 | 0 | t->err = EPROTO; |
4326 | 0 | SDPERR("Protocol error: wrong PDU size."); |
4327 | 0 | status = 0xffff; |
4328 | 0 | goto end; |
4329 | 0 | } |
4330 | | |
4331 | | /* |
4332 | | * This is a split response, need to concatenate intermediate |
4333 | | * responses and the last one which will have cstate length == 0 |
4334 | | */ |
4335 | 0 | t->rsp_concat_buf.data = realloc(t->rsp_concat_buf.data, t->rsp_concat_buf.data_size + rsp_count); |
4336 | 0 | targetPtr = t->rsp_concat_buf.data + t->rsp_concat_buf.data_size; |
4337 | 0 | t->rsp_concat_buf.buf_size = t->rsp_concat_buf.data_size + rsp_count; |
4338 | 0 | memcpy(targetPtr, pdata, rsp_count); |
4339 | 0 | t->rsp_concat_buf.data_size += rsp_count; |
4340 | |
|
4341 | 0 | if (pcstate->length > 0) { |
4342 | 0 | int reqsize, cstate_len; |
4343 | |
|
4344 | 0 | reqhdr->tid = htons(sdp_gen_tid(session)); |
4345 | | |
4346 | | /* add continuation state */ |
4347 | 0 | cstate_len = copy_cstate(t->reqbuf + t->reqsize, |
4348 | 0 | SDP_REQ_BUFFER_SIZE - t->reqsize, pcstate); |
4349 | |
|
4350 | 0 | reqsize = t->reqsize + cstate_len; |
4351 | | |
4352 | | /* set the request header's param length */ |
4353 | 0 | reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); |
4354 | |
|
4355 | 0 | if (sdp_send_req(session, t->reqbuf, reqsize) < 0) { |
4356 | 0 | SDPERR("Error sending data:%m(%d)", errno); |
4357 | 0 | status = 0xffff; |
4358 | 0 | t->err = errno; |
4359 | 0 | goto end; |
4360 | 0 | } |
4361 | 0 | err = 0; |
4362 | 0 | } |
4363 | | |
4364 | 0 | end: |
4365 | 0 | if (err) { |
4366 | 0 | if (t->rsp_concat_buf.data_size != 0) { |
4367 | 0 | pdata = t->rsp_concat_buf.data; |
4368 | 0 | size = t->rsp_concat_buf.data_size; |
4369 | 0 | } |
4370 | 0 | if (t->cb) |
4371 | 0 | t->cb(pdu_id, status, pdata, size, t->udata); |
4372 | 0 | } |
4373 | |
|
4374 | 0 | free(rspbuf); |
4375 | |
|
4376 | 0 | return err; |
4377 | 0 | } |
4378 | | |
4379 | | /* |
4380 | | * This is a service search request combined with the service |
4381 | | * attribute request. First a service class match is done and |
4382 | | * for matching service, requested attributes are extracted |
4383 | | * |
4384 | | * INPUT : |
4385 | | * |
4386 | | * sdp_list_t *search |
4387 | | * Singly linked list containing elements of the search |
4388 | | * pattern. Each entry in the list is a UUID(DataTypeSDP_UUID16) |
4389 | | * of the service to be searched |
4390 | | * |
4391 | | * AttributeSpecification attrSpec |
4392 | | * Attribute identifiers are 16 bit unsigned integers specified |
4393 | | * in one of 2 ways described below : |
4394 | | * SDP_ATTR_REQ_INDIVIDUAL - 16bit individual identifiers |
4395 | | * They are the actual attribute identifiers in ascending order |
4396 | | * |
4397 | | * SDP_ATTR_REQ_RANGE - 32bit identifier range |
4398 | | * The high-order 16bits is the start of range |
4399 | | * the low-order 16bits are the end of range |
4400 | | * 0x0000 to 0xFFFF gets all attributes |
4401 | | * |
4402 | | * sdp_list_t *attrids |
4403 | | * Singly linked list containing attribute identifiers desired. |
4404 | | * Every element is either a uint16_t(attrSpec = SDP_ATTR_REQ_INDIVIDUAL) |
4405 | | * or a uint32_t(attrSpec=SDP_ATTR_REQ_RANGE) |
4406 | | * |
4407 | | * OUTPUT : |
4408 | | * int return value |
4409 | | * 0: |
4410 | | * The request completed successfully. This does not |
4411 | | * mean the requested services were found |
4412 | | * -1: |
4413 | | * On any error and sets errno |
4414 | | * |
4415 | | * sdp_list_t **rsp |
4416 | | * This variable is set on a successful return to point to |
4417 | | * service(s) found. Each element of this list is of type |
4418 | | * sdp_record_t* (of the services which matched the search list) |
4419 | | */ |
4420 | | int sdp_service_search_attr_req(sdp_session_t *session, const sdp_list_t *search, sdp_attrreq_type_t reqtype, const sdp_list_t *attrids, sdp_list_t **rsp) |
4421 | 0 | { |
4422 | 0 | int status = 0; |
4423 | 0 | uint32_t reqsize = 0, _reqsize; |
4424 | 0 | uint32_t rspsize = 0; |
4425 | 0 | int seqlen = 0, attr_list_len = 0; |
4426 | 0 | int rsp_count = 0, cstate_len = 0; |
4427 | 0 | unsigned int pdata_len; |
4428 | 0 | uint8_t *pdata, *_pdata; |
4429 | 0 | uint8_t *reqbuf, *rspbuf; |
4430 | 0 | sdp_pdu_hdr_t *reqhdr, *rsphdr; |
4431 | 0 | uint8_t dataType; |
4432 | 0 | sdp_list_t *rec_list = NULL; |
4433 | 0 | sdp_buf_t rsp_concat_buf; |
4434 | 0 | sdp_cstate_t *cstate = NULL; |
4435 | |
|
4436 | 0 | if (reqtype != SDP_ATTR_REQ_INDIVIDUAL && reqtype != SDP_ATTR_REQ_RANGE) { |
4437 | 0 | errno = EINVAL; |
4438 | 0 | return -1; |
4439 | 0 | } |
4440 | | |
4441 | 0 | memset(&rsp_concat_buf, 0, sizeof(sdp_buf_t)); |
4442 | |
|
4443 | 0 | reqbuf = malloc(SDP_REQ_BUFFER_SIZE); |
4444 | 0 | rspbuf = malloc(SDP_RSP_BUFFER_SIZE); |
4445 | 0 | if (!reqbuf || !rspbuf) { |
4446 | 0 | errno = ENOMEM; |
4447 | 0 | status = -1; |
4448 | 0 | goto end; |
4449 | 0 | } |
4450 | | |
4451 | 0 | reqhdr = (sdp_pdu_hdr_t *) reqbuf; |
4452 | 0 | reqhdr->pdu_id = SDP_SVC_SEARCH_ATTR_REQ; |
4453 | | |
4454 | | /* generate PDU */ |
4455 | 0 | pdata = reqbuf + sizeof(sdp_pdu_hdr_t); |
4456 | 0 | reqsize = sizeof(sdp_pdu_hdr_t); |
4457 | | |
4458 | | /* add service class IDs for search */ |
4459 | 0 | seqlen = gen_searchseq_pdu(pdata, search); |
4460 | 0 | if (seqlen < 0) { |
4461 | 0 | errno = EINVAL; |
4462 | 0 | status = -1; |
4463 | 0 | goto end; |
4464 | 0 | } |
4465 | | |
4466 | 0 | SDPDBG("Data seq added : %d", seqlen); |
4467 | | |
4468 | | /* now set the length and increment the pointer */ |
4469 | 0 | reqsize += seqlen; |
4470 | 0 | pdata += seqlen; |
4471 | |
|
4472 | 0 | bt_put_be16(SDP_MAX_ATTR_LEN, pdata); |
4473 | 0 | reqsize += sizeof(uint16_t); |
4474 | 0 | pdata += sizeof(uint16_t); |
4475 | |
|
4476 | 0 | SDPDBG("Max attr byte count : %d", SDP_MAX_ATTR_LEN); |
4477 | | |
4478 | | /* get attr seq PDU form */ |
4479 | 0 | seqlen = gen_attridseq_pdu(pdata, attrids, |
4480 | 0 | reqtype == SDP_ATTR_REQ_INDIVIDUAL ? SDP_UINT16 : SDP_UINT32); |
4481 | 0 | if (seqlen < 0) { |
4482 | 0 | errno = EINVAL; |
4483 | 0 | status = -1; |
4484 | 0 | goto end; |
4485 | 0 | } |
4486 | 0 | pdata += seqlen; |
4487 | 0 | SDPDBG("Attr list length : %d", seqlen); |
4488 | 0 | reqsize += seqlen; |
4489 | 0 | *rsp = 0; |
4490 | | |
4491 | | /* save before Continuation State */ |
4492 | 0 | _pdata = pdata; |
4493 | 0 | _reqsize = reqsize; |
4494 | |
|
4495 | 0 | do { |
4496 | 0 | reqhdr->tid = htons(sdp_gen_tid(session)); |
4497 | | |
4498 | | /* add continuation state (can be null) */ |
4499 | 0 | reqsize = _reqsize + copy_cstate(_pdata, |
4500 | 0 | SDP_REQ_BUFFER_SIZE - _reqsize, cstate); |
4501 | | |
4502 | | /* set the request header's param length */ |
4503 | 0 | reqhdr->plen = htons(reqsize - sizeof(sdp_pdu_hdr_t)); |
4504 | 0 | rsphdr = (sdp_pdu_hdr_t *) rspbuf; |
4505 | 0 | status = sdp_send_req_w4_rsp(session, reqbuf, rspbuf, reqsize, &rspsize); |
4506 | 0 | if (rspsize < sizeof(sdp_pdu_hdr_t)) { |
4507 | 0 | SDPERR("Unexpected end of packet"); |
4508 | 0 | status = -1; |
4509 | 0 | goto end; |
4510 | 0 | } |
4511 | | |
4512 | 0 | if (status < 0) { |
4513 | 0 | SDPDBG("Status : 0x%x", rsphdr->pdu_id); |
4514 | 0 | goto end; |
4515 | 0 | } |
4516 | | |
4517 | 0 | if (rsphdr->pdu_id == SDP_ERROR_RSP) { |
4518 | 0 | status = -1; |
4519 | 0 | goto end; |
4520 | 0 | } |
4521 | | |
4522 | 0 | pdata = rspbuf + sizeof(sdp_pdu_hdr_t); |
4523 | 0 | pdata_len = rspsize - sizeof(sdp_pdu_hdr_t); |
4524 | |
|
4525 | 0 | if (pdata_len < sizeof(uint16_t)) { |
4526 | 0 | SDPERR("Unexpected end of packet"); |
4527 | 0 | status = -1; |
4528 | 0 | goto end; |
4529 | 0 | } |
4530 | | |
4531 | 0 | rsp_count = bt_get_be16(pdata); |
4532 | 0 | attr_list_len += rsp_count; |
4533 | 0 | pdata += sizeof(uint16_t); /* pdata points to attribute list */ |
4534 | 0 | pdata_len -= sizeof(uint16_t); |
4535 | |
|
4536 | 0 | if (pdata_len < rsp_count + sizeof(uint8_t)) { |
4537 | 0 | SDPERR("Unexpected end of packet: continuation state data missing"); |
4538 | 0 | status = -1; |
4539 | 0 | goto end; |
4540 | 0 | } |
4541 | | |
4542 | 0 | cstate_len = *(uint8_t *) (pdata + rsp_count); |
4543 | |
|
4544 | 0 | SDPDBG("Attrlist byte count : %d", attr_list_len); |
4545 | 0 | SDPDBG("Response byte count : %d", rsp_count); |
4546 | 0 | SDPDBG("Cstate length : %d", cstate_len); |
4547 | | /* |
4548 | | * This is a split response, need to concatenate intermediate |
4549 | | * responses and the last one which will have cstate_len == 0 |
4550 | | */ |
4551 | 0 | if (cstate_len > 0 || rsp_concat_buf.data_size != 0) { |
4552 | 0 | uint8_t *targetPtr = NULL; |
4553 | |
|
4554 | 0 | cstate = cstate_len > 0 ? (sdp_cstate_t *) (pdata + rsp_count) : 0; |
4555 | | |
4556 | | /* build concatenated response buffer */ |
4557 | 0 | rsp_concat_buf.data = realloc(rsp_concat_buf.data, rsp_concat_buf.data_size + rsp_count); |
4558 | 0 | targetPtr = rsp_concat_buf.data + rsp_concat_buf.data_size; |
4559 | 0 | rsp_concat_buf.buf_size = rsp_concat_buf.data_size + rsp_count; |
4560 | 0 | memcpy(targetPtr, pdata, rsp_count); |
4561 | 0 | rsp_concat_buf.data_size += rsp_count; |
4562 | 0 | } |
4563 | 0 | } while (cstate); |
4564 | | |
4565 | 0 | if (attr_list_len > 0) { |
4566 | 0 | int scanned = 0; |
4567 | |
|
4568 | 0 | if (rsp_concat_buf.data_size != 0) { |
4569 | 0 | pdata = rsp_concat_buf.data; |
4570 | 0 | pdata_len = rsp_concat_buf.data_size; |
4571 | 0 | } |
4572 | | |
4573 | | /* |
4574 | | * Response is a sequence of sequence(s) for one or |
4575 | | * more data element sequence(s) representing services |
4576 | | * for which attributes are returned |
4577 | | */ |
4578 | 0 | scanned = sdp_extract_seqtype(pdata, pdata_len, &dataType, &seqlen); |
4579 | |
|
4580 | 0 | SDPDBG("Bytes scanned : %d", scanned); |
4581 | 0 | SDPDBG("Seq length : %d", seqlen); |
4582 | |
|
4583 | 0 | if (scanned && seqlen) { |
4584 | 0 | pdata += scanned; |
4585 | 0 | pdata_len -= scanned; |
4586 | 0 | do { |
4587 | 0 | int recsize = 0; |
4588 | 0 | sdp_record_t *rec = sdp_extract_pdu(pdata, pdata_len, &recsize); |
4589 | 0 | if (rec == NULL) { |
4590 | 0 | SDPERR("SVC REC is null"); |
4591 | 0 | status = -1; |
4592 | 0 | goto end; |
4593 | 0 | } |
4594 | 0 | if (!recsize) { |
4595 | 0 | sdp_record_free(rec); |
4596 | 0 | break; |
4597 | 0 | } |
4598 | 0 | scanned += recsize; |
4599 | 0 | pdata += recsize; |
4600 | 0 | pdata_len -= recsize; |
4601 | |
|
4602 | 0 | SDPDBG("Loc seq length : %d", recsize); |
4603 | 0 | SDPDBG("Svc Rec Handle : 0x%x", rec->handle); |
4604 | 0 | SDPDBG("Bytes scanned : %d", scanned); |
4605 | 0 | SDPDBG("Attrlist byte count : %d", attr_list_len); |
4606 | 0 | rec_list = sdp_list_append(rec_list, rec); |
4607 | 0 | } while (scanned < attr_list_len && pdata_len > 0); |
4608 | | |
4609 | 0 | SDPDBG("Successful scan of service attr lists"); |
4610 | 0 | *rsp = rec_list; |
4611 | 0 | } |
4612 | 0 | } |
4613 | 0 | end: |
4614 | 0 | free(rsp_concat_buf.data); |
4615 | 0 | free(reqbuf); |
4616 | 0 | free(rspbuf); |
4617 | 0 | return status; |
4618 | 0 | } |
4619 | | |
4620 | | /* |
4621 | | * Find devices in the piconet. |
4622 | | */ |
4623 | | int sdp_general_inquiry(inquiry_info *ii, int num_dev, int duration, uint8_t *found) |
4624 | 0 | { |
4625 | 0 | int n = hci_inquiry(-1, 10, num_dev, NULL, &ii, 0); |
4626 | 0 | if (n < 0) { |
4627 | 0 | SDPERR("Inquiry failed:%m"); |
4628 | 0 | return -1; |
4629 | 0 | } |
4630 | 0 | *found = n; |
4631 | 0 | return 0; |
4632 | 0 | } |
4633 | | |
4634 | | int sdp_close(sdp_session_t *session) |
4635 | 0 | { |
4636 | 0 | struct sdp_transaction *t; |
4637 | 0 | int ret; |
4638 | |
|
4639 | 0 | if (!session) |
4640 | 0 | return -1; |
4641 | | |
4642 | 0 | ret = close(session->sock); |
4643 | |
|
4644 | 0 | t = session->priv; |
4645 | |
|
4646 | 0 | if (t) { |
4647 | 0 | free(t->reqbuf); |
4648 | |
|
4649 | 0 | free(t->rsp_concat_buf.data); |
4650 | |
|
4651 | 0 | free(t); |
4652 | 0 | } |
4653 | 0 | free(session); |
4654 | 0 | return ret; |
4655 | 0 | } |
4656 | | |
4657 | | static inline int sdp_is_local(const bdaddr_t *device) |
4658 | 0 | { |
4659 | 0 | return memcmp(device, BDADDR_LOCAL, sizeof(bdaddr_t)) == 0; |
4660 | 0 | } |
4661 | | |
4662 | | static int sdp_connect_local(sdp_session_t *session) |
4663 | 0 | { |
4664 | 0 | struct sockaddr_un sa; |
4665 | |
|
4666 | 0 | session->sock = socket(PF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0); |
4667 | 0 | if (session->sock < 0) |
4668 | 0 | return -1; |
4669 | 0 | session->local = 1; |
4670 | |
|
4671 | 0 | sa.sun_family = AF_UNIX; |
4672 | 0 | strcpy(sa.sun_path, SDP_UNIX_PATH); |
4673 | |
|
4674 | 0 | return connect(session->sock, (struct sockaddr *) &sa, sizeof(sa)); |
4675 | 0 | } |
4676 | | |
4677 | | static int set_l2cap_mtu(int sk, uint16_t mtu) |
4678 | 0 | { |
4679 | 0 | struct l2cap_options l2o; |
4680 | 0 | socklen_t len; |
4681 | |
|
4682 | 0 | memset(&l2o, 0, sizeof(l2o)); |
4683 | 0 | len = sizeof(l2o); |
4684 | |
|
4685 | 0 | if (getsockopt(sk, SOL_L2CAP, L2CAP_OPTIONS, &l2o, &len) < 0) |
4686 | 0 | return -1; |
4687 | | |
4688 | 0 | l2o.imtu = mtu; |
4689 | 0 | l2o.omtu = mtu; |
4690 | |
|
4691 | 0 | if (setsockopt(sk, SOL_L2CAP, L2CAP_OPTIONS, &l2o, sizeof(l2o)) < 0) |
4692 | 0 | return -1; |
4693 | | |
4694 | 0 | return 0; |
4695 | 0 | } |
4696 | | |
4697 | | static int sdp_connect_l2cap(const bdaddr_t *src, |
4698 | | const bdaddr_t *dst, sdp_session_t *session) |
4699 | 0 | { |
4700 | 0 | uint32_t flags = session->flags; |
4701 | 0 | struct sockaddr_l2 sa; |
4702 | 0 | int sk; |
4703 | 0 | int sockflags = SOCK_SEQPACKET | SOCK_CLOEXEC; |
4704 | |
|
4705 | 0 | if (flags & SDP_NON_BLOCKING) |
4706 | 0 | sockflags |= SOCK_NONBLOCK; |
4707 | |
|
4708 | 0 | session->sock = socket(PF_BLUETOOTH, sockflags, BTPROTO_L2CAP); |
4709 | 0 | if (session->sock < 0) |
4710 | 0 | return -1; |
4711 | 0 | session->local = 0; |
4712 | |
|
4713 | 0 | sk = session->sock; |
4714 | |
|
4715 | 0 | memset(&sa, 0, sizeof(sa)); |
4716 | |
|
4717 | 0 | sa.l2_family = AF_BLUETOOTH; |
4718 | 0 | sa.l2_psm = 0; |
4719 | |
|
4720 | 0 | if (bacmp(src, BDADDR_ANY)) { |
4721 | 0 | sa.l2_bdaddr = *src; |
4722 | 0 | if (bind(sk, (struct sockaddr *) &sa, sizeof(sa)) < 0) |
4723 | 0 | return -1; |
4724 | 0 | } |
4725 | | |
4726 | 0 | if (flags & SDP_WAIT_ON_CLOSE) { |
4727 | 0 | struct linger l = { .l_onoff = 1, .l_linger = 1 }; |
4728 | 0 | if (setsockopt(sk, SOL_SOCKET, SO_LINGER, &l, sizeof(l)) < 0) |
4729 | 0 | return -1; |
4730 | 0 | } |
4731 | | |
4732 | 0 | if ((flags & SDP_LARGE_MTU) && |
4733 | 0 | set_l2cap_mtu(sk, SDP_LARGE_L2CAP_MTU) < 0) |
4734 | 0 | return -1; |
4735 | | |
4736 | 0 | sa.l2_psm = htobs(SDP_PSM); |
4737 | 0 | sa.l2_bdaddr = *dst; |
4738 | |
|
4739 | 0 | do { |
4740 | 0 | int ret = connect(sk, (struct sockaddr *) &sa, sizeof(sa)); |
4741 | 0 | if (!ret) |
4742 | 0 | return 0; |
4743 | 0 | if (ret < 0 && (flags & SDP_NON_BLOCKING) && |
4744 | 0 | (errno == EAGAIN || errno == EINPROGRESS)) |
4745 | 0 | return 0; |
4746 | 0 | } while (errno == EBUSY && (flags & SDP_RETRY_IF_BUSY)); |
4747 | | |
4748 | 0 | return -1; |
4749 | 0 | } |
4750 | | |
4751 | | sdp_session_t *sdp_connect(const bdaddr_t *src, |
4752 | | const bdaddr_t *dst, uint32_t flags) |
4753 | 0 | { |
4754 | 0 | sdp_session_t *session; |
4755 | 0 | int err; |
4756 | |
|
4757 | 0 | if ((flags & SDP_RETRY_IF_BUSY) && (flags & SDP_NON_BLOCKING)) { |
4758 | 0 | errno = EINVAL; |
4759 | 0 | return NULL; |
4760 | 0 | } |
4761 | | |
4762 | 0 | session = sdp_create(-1, flags); |
4763 | 0 | if (!session) |
4764 | 0 | return NULL; |
4765 | | |
4766 | 0 | if (sdp_is_local(dst)) { |
4767 | 0 | if (sdp_connect_local(session) < 0) |
4768 | 0 | goto fail; |
4769 | 0 | } else { |
4770 | 0 | if (sdp_connect_l2cap(src, dst, session) < 0) |
4771 | 0 | goto fail; |
4772 | 0 | } |
4773 | | |
4774 | 0 | return session; |
4775 | | |
4776 | 0 | fail: |
4777 | 0 | err = errno; |
4778 | 0 | if (session->sock >= 0) |
4779 | 0 | close(session->sock); |
4780 | 0 | free(session->priv); |
4781 | 0 | free(session); |
4782 | 0 | errno = err; |
4783 | |
|
4784 | 0 | return NULL; |
4785 | 0 | } |
4786 | | |
4787 | | int sdp_get_socket(const sdp_session_t *session) |
4788 | 0 | { |
4789 | 0 | return session->sock; |
4790 | 0 | } |
4791 | | |
4792 | | uint16_t sdp_gen_tid(sdp_session_t *session) |
4793 | 0 | { |
4794 | 0 | return session->tid++; |
4795 | 0 | } |
4796 | | |
4797 | | /* |
4798 | | * Set the supported features |
4799 | | */ |
4800 | | int sdp_set_supp_feat(sdp_record_t *rec, const sdp_list_t *sf) |
4801 | 0 | { |
4802 | 0 | const sdp_list_t *p, *r; |
4803 | 0 | sdp_data_t *feat, *seq_feat; |
4804 | 0 | int seqlen, i; |
4805 | 0 | void **seqDTDs, **seqVals; |
4806 | |
|
4807 | 0 | seqlen = sdp_list_len(sf); |
4808 | 0 | seqDTDs = malloc(seqlen * sizeof(void *)); |
4809 | 0 | if (!seqDTDs) |
4810 | 0 | return -1; |
4811 | 0 | seqVals = malloc(seqlen * sizeof(void *)); |
4812 | 0 | if (!seqVals) { |
4813 | 0 | free(seqDTDs); |
4814 | 0 | return -1; |
4815 | 0 | } |
4816 | | |
4817 | 0 | for (p = sf, i = 0; p; p = p->next, i++) { |
4818 | 0 | int plen, j; |
4819 | 0 | void **dtds, **vals; |
4820 | 0 | int *lengths; |
4821 | |
|
4822 | 0 | plen = sdp_list_len(p->data); |
4823 | 0 | dtds = malloc(plen * sizeof(void *)); |
4824 | 0 | if (!dtds) |
4825 | 0 | goto fail; |
4826 | 0 | vals = malloc(plen * sizeof(void *)); |
4827 | 0 | if (!vals) { |
4828 | 0 | free(dtds); |
4829 | 0 | goto fail; |
4830 | 0 | } |
4831 | 0 | lengths = malloc(plen * sizeof(int)); |
4832 | 0 | if (!lengths) { |
4833 | 0 | free(dtds); |
4834 | 0 | free(vals); |
4835 | 0 | goto fail; |
4836 | 0 | } |
4837 | 0 | for (r = p->data, j = 0; r; r = r->next, j++) { |
4838 | 0 | sdp_data_t *data = (sdp_data_t *) r->data; |
4839 | 0 | dtds[j] = &data->dtd; |
4840 | 0 | switch (data->dtd) { |
4841 | 0 | case SDP_URL_STR8: |
4842 | 0 | case SDP_URL_STR16: |
4843 | 0 | case SDP_TEXT_STR8: |
4844 | 0 | case SDP_TEXT_STR16: |
4845 | 0 | vals[j] = data->val.str; |
4846 | 0 | lengths[j] = data->unitSize - sizeof(uint8_t); |
4847 | 0 | break; |
4848 | 0 | case SDP_ALT8: |
4849 | 0 | case SDP_ALT16: |
4850 | 0 | case SDP_ALT32: |
4851 | 0 | case SDP_SEQ8: |
4852 | 0 | case SDP_SEQ16: |
4853 | 0 | case SDP_SEQ32: |
4854 | 0 | vals[j] = data->val.dataseq; |
4855 | 0 | lengths[j] = 0; |
4856 | 0 | break; |
4857 | 0 | default: |
4858 | 0 | vals[j] = &data->val; |
4859 | 0 | lengths[j] = 0; |
4860 | 0 | break; |
4861 | 0 | } |
4862 | 0 | } |
4863 | 0 | feat = sdp_seq_alloc_with_length(dtds, vals, lengths, plen); |
4864 | 0 | free(dtds); |
4865 | 0 | free(vals); |
4866 | 0 | free(lengths); |
4867 | 0 | if (!feat) |
4868 | 0 | goto fail; |
4869 | 0 | seqDTDs[i] = &feat->dtd; |
4870 | 0 | seqVals[i] = feat; |
4871 | 0 | } |
4872 | 0 | seq_feat = sdp_seq_alloc(seqDTDs, seqVals, seqlen); |
4873 | 0 | if (!seq_feat) |
4874 | 0 | goto fail; |
4875 | 0 | sdp_attr_replace(rec, SDP_ATTR_SUPPORTED_FEATURES_LIST, seq_feat); |
4876 | |
|
4877 | 0 | free(seqVals); |
4878 | 0 | free(seqDTDs); |
4879 | 0 | return 0; |
4880 | | |
4881 | 0 | fail: |
4882 | 0 | free(seqVals); |
4883 | 0 | free(seqDTDs); |
4884 | 0 | return -1; |
4885 | 0 | } |
4886 | | |
4887 | | /* |
4888 | | * Get the supported features |
4889 | | * If an error occurred -1 is returned and errno is set |
4890 | | */ |
4891 | | int sdp_get_supp_feat(const sdp_record_t *rec, sdp_list_t **seqp) |
4892 | 0 | { |
4893 | 0 | sdp_data_t *sdpdata, *d; |
4894 | 0 | sdp_list_t *tseq; |
4895 | 0 | tseq = NULL; |
4896 | |
|
4897 | 0 | sdpdata = sdp_data_get(rec, SDP_ATTR_SUPPORTED_FEATURES_LIST); |
4898 | |
|
4899 | 0 | if (!sdpdata || !SDP_IS_SEQ(sdpdata->dtd)) |
4900 | 0 | return sdp_get_uuidseq_attr(rec, |
4901 | 0 | SDP_ATTR_SUPPORTED_FEATURES_LIST, seqp); |
4902 | | |
4903 | 0 | for (d = sdpdata->val.dataseq; d; d = d->next) { |
4904 | 0 | sdp_data_t *dd; |
4905 | 0 | sdp_list_t *subseq; |
4906 | |
|
4907 | 0 | if (!SDP_IS_SEQ(d->dtd)) |
4908 | 0 | goto fail; |
4909 | | |
4910 | 0 | subseq = NULL; |
4911 | |
|
4912 | 0 | for (dd = d->val.dataseq; dd; dd = dd->next) { |
4913 | 0 | sdp_data_t *data; |
4914 | 0 | void *val; |
4915 | 0 | int length; |
4916 | |
|
4917 | 0 | switch (dd->dtd) { |
4918 | 0 | case SDP_URL_STR8: |
4919 | 0 | case SDP_URL_STR16: |
4920 | 0 | case SDP_TEXT_STR8: |
4921 | 0 | case SDP_TEXT_STR16: |
4922 | 0 | val = dd->val.str; |
4923 | 0 | length = dd->unitSize - sizeof(uint8_t); |
4924 | 0 | break; |
4925 | 0 | case SDP_UINT8: |
4926 | 0 | case SDP_UINT16: |
4927 | 0 | val = &dd->val; |
4928 | 0 | length = 0; |
4929 | 0 | break; |
4930 | 0 | default: |
4931 | 0 | sdp_list_free(subseq, free); |
4932 | 0 | goto fail; |
4933 | 0 | } |
4934 | | |
4935 | 0 | data = sdp_data_alloc_with_length(dd->dtd, val, length); |
4936 | 0 | if (data) |
4937 | 0 | subseq = sdp_list_append(subseq, data); |
4938 | 0 | } |
4939 | 0 | tseq = sdp_list_append(tseq, subseq); |
4940 | 0 | } |
4941 | 0 | *seqp = tseq; |
4942 | 0 | return 0; |
4943 | | |
4944 | 0 | fail: |
4945 | 0 | while (tseq) { |
4946 | 0 | sdp_list_t * next; |
4947 | |
|
4948 | 0 | next = tseq->next; |
4949 | 0 | sdp_list_free(tseq, free); |
4950 | 0 | tseq = next; |
4951 | 0 | } |
4952 | 0 | errno = EINVAL; |
4953 | 0 | return -1; |
4954 | 0 | } |
4955 | | |
4956 | | void sdp_add_lang_attr(sdp_record_t *rec) |
4957 | 0 | { |
4958 | 0 | sdp_lang_attr_t base_lang; |
4959 | 0 | sdp_list_t *langs; |
4960 | |
|
4961 | 0 | base_lang.code_ISO639 = (0x65 << 8) | 0x6e; |
4962 | 0 | base_lang.encoding = 106; |
4963 | 0 | base_lang.base_offset = SDP_PRIMARY_LANG_BASE; |
4964 | |
|
4965 | 0 | langs = sdp_list_append(0, &base_lang); |
4966 | 0 | sdp_set_lang_attr(rec, langs); |
4967 | 0 | sdp_list_free(langs, NULL); |
4968 | 0 | } |