1 /******************************************************************************
2 *
3 * Copyright (C) 1999-2013 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19 #include "bt_target.h"
20 #include "bt_utils.h"
21 #include "gatt_api.h"
22 #include "gatt_int.h"
23 #include "srvc_eng_int.h"
24 #include "srvc_dis_int.h"
25
26 #if BLE_INCLUDED == TRUE
27
28 #define DIS_MAX_NUM_INC_SVR 0
29 #define DIS_MAX_CHAR_NUM 9
30 #define DIS_MAX_ATTR_NUM (DIS_MAX_CHAR_NUM * 2 + DIS_MAX_NUM_INC_SVR + 1)
31
32 #ifndef DIS_ATTR_DB_SIZE
33 #define DIS_ATTR_DB_SIZE GATT_DB_MEM_SIZE(DIS_MAX_NUM_INC_SVR, DIS_MAX_CHAR_NUM, 0)
34 #endif
35
36 #define UINT64_TO_STREAM(p, u64) {*(p)++ = (UINT8)(u64); *(p)++ = (UINT8)((u64) >> 8);*(p)++ = (UINT8)((u64) >> 16); *(p)++ = (UINT8)((u64) >> 24); \
37 *(p)++ = (UINT8)((u64) >> 32); *(p)++ = (UINT8)((u64) >> 40);*(p)++ = (UINT8)((u64) >> 48); *(p)++ = (UINT8)((u64) >> 56);}
38
39 #define STREAM_TO_UINT64(u64, p) {u64 = (((UINT64)(*(p))) + ((((UINT64)(*((p) + 1)))) << 8) + ((((UINT64)(*((p) + 2)))) << 16) + ((((UINT64)(*((p) + 3)))) << 24) \
40 + ((((UINT64)(*((p) + 4)))) << 32) + ((((UINT64)(*((p) + 5)))) << 40) + ((((UINT64)(*((p) + 6)))) << 48) + ((((UINT64)(*((p) + 7)))) << 56)); (p) += 8;}
41
42
43
44 static const UINT16 dis_attr_uuid[DIS_MAX_CHAR_NUM] =
45 {
46 GATT_UUID_SYSTEM_ID,
47 GATT_UUID_MODEL_NUMBER_STR,
48 GATT_UUID_SERIAL_NUMBER_STR,
49 GATT_UUID_FW_VERSION_STR,
50 GATT_UUID_HW_VERSION_STR,
51 GATT_UUID_SW_VERSION_STR,
52 GATT_UUID_MANU_NAME,
53 GATT_UUID_IEEE_DATA,
54 GATT_UUID_PNP_ID
55 };
56
57 tDIS_CB dis_cb;
58
dis_uuid_to_attr(UINT16 uuid)59 static tDIS_ATTR_MASK dis_uuid_to_attr(UINT16 uuid)
60 {
61 switch (uuid)
62 {
63 case GATT_UUID_SYSTEM_ID:
64 return DIS_ATTR_SYS_ID_BIT;
65 case GATT_UUID_MODEL_NUMBER_STR:
66 return DIS_ATTR_MODEL_NUM_BIT;
67 case GATT_UUID_SERIAL_NUMBER_STR:
68 return DIS_ATTR_SERIAL_NUM_BIT;
69 case GATT_UUID_FW_VERSION_STR:
70 return DIS_ATTR_FW_NUM_BIT;
71 case GATT_UUID_HW_VERSION_STR:
72 return DIS_ATTR_HW_NUM_BIT;
73 case GATT_UUID_SW_VERSION_STR:
74 return DIS_ATTR_SW_NUM_BIT;
75 case GATT_UUID_MANU_NAME:
76 return DIS_ATTR_MANU_NAME_BIT;
77 case GATT_UUID_IEEE_DATA:
78 return DIS_ATTR_IEEE_DATA_BIT;
79 case GATT_UUID_PNP_ID:
80 return DIS_ATTR_PNP_ID_BIT;
81 default:
82 return 0;
83 };
84 }
85
86 /*******************************************************************************
87 ** dis_valid_handle_range
88 **
89 ** validate a handle to be a DIS attribute handle or not.
90 *******************************************************************************/
dis_valid_handle_range(UINT16 handle)91 BOOLEAN dis_valid_handle_range(UINT16 handle)
92 {
93 if (handle >= dis_cb.service_handle && handle <= dis_cb.max_handle)
94 return TRUE;
95 else
96 return FALSE;
97 }
98 /*******************************************************************************
99 ** dis_write_attr_value
100 **
101 ** Process write DIS attribute request.
102 *******************************************************************************/
dis_write_attr_value(tGATT_WRITE_REQ * p_data,tGATT_STATUS * p_status)103 UINT8 dis_write_attr_value(tGATT_WRITE_REQ * p_data, tGATT_STATUS *p_status)
104 {
105 UNUSED(p_data);
106
107 *p_status = GATT_WRITE_NOT_PERMIT;
108 return SRVC_ACT_RSP;
109 }
110 /*******************************************************************************
111 ** DIS Attributes Database Server Request callback
112 *******************************************************************************/
dis_read_attr_value(UINT8 clcb_idx,UINT16 handle,tGATT_VALUE * p_value,BOOLEAN is_long,tGATT_STATUS * p_status)113 UINT8 dis_read_attr_value (UINT8 clcb_idx, UINT16 handle, tGATT_VALUE *p_value,
114 BOOLEAN is_long, tGATT_STATUS *p_status)
115 {
116 tDIS_DB_ENTRY *p_db_attr = dis_cb.dis_attr;
117 UINT8 *p = p_value->value, i, *pp;
118 UINT16 offset = p_value->offset;
119 UINT8 act = SRVC_ACT_RSP;
120 tGATT_STATUS st = GATT_NOT_FOUND;
121 UNUSED(clcb_idx);
122
123 for (i = 0; i < DIS_MAX_CHAR_NUM; i ++, p_db_attr ++)
124 {
125 if (handle == p_db_attr->handle)
126 {
127 if ((p_db_attr->uuid == GATT_UUID_PNP_ID || p_db_attr->uuid == GATT_UUID_SYSTEM_ID)&&
128 is_long == TRUE)
129 {
130 st = GATT_NOT_LONG;
131 break;
132 }
133 st = GATT_SUCCESS;
134
135 switch (p_db_attr->uuid)
136 {
137 case GATT_UUID_MANU_NAME:
138 case GATT_UUID_MODEL_NUMBER_STR:
139 case GATT_UUID_SERIAL_NUMBER_STR:
140 case GATT_UUID_FW_VERSION_STR:
141 case GATT_UUID_HW_VERSION_STR:
142 case GATT_UUID_SW_VERSION_STR:
143 case GATT_UUID_IEEE_DATA:
144 pp = dis_cb.dis_value.data_string[p_db_attr->uuid - GATT_UUID_MODEL_NUMBER_STR];
145 if (pp != NULL)
146 {
147 if (strlen ((char *)pp) > GATT_MAX_ATTR_LEN)
148 p_value->len = GATT_MAX_ATTR_LEN;
149 else
150 p_value->len = (UINT16)strlen ((char *)pp);
151 }
152 else
153 p_value->len = 0;
154
155 if (offset > p_value->len)
156 {
157 st = GATT_INVALID_OFFSET;
158 break;
159 }
160 else
161 {
162 p_value->len -= offset;
163 pp += offset;
164 ARRAY_TO_STREAM(p, pp, p_value->len);
165 GATT_TRACE_EVENT("GATT_UUID_MANU_NAME len=0x%04x", p_value->len);
166 }
167 break;
168
169
170 case GATT_UUID_SYSTEM_ID:
171 UINT64_TO_STREAM(p, dis_cb.dis_value.system_id); /* int_min */
172 p_value->len = DIS_SYSTEM_ID_SIZE;
173 break;
174
175 case GATT_UUID_PNP_ID:
176 UINT8_TO_STREAM(p, dis_cb.dis_value.pnp_id.vendor_id_src);
177 UINT16_TO_STREAM(p, dis_cb.dis_value.pnp_id.vendor_id);
178 UINT16_TO_STREAM(p, dis_cb.dis_value.pnp_id.product_id);
179 UINT16_TO_STREAM(p, dis_cb.dis_value.pnp_id.product_version);
180 p_value->len = DIS_PNP_ID_SIZE;
181 break;
182
183 }
184 break;
185 }
186 }
187 *p_status = st;
188 return act;
189 }
190
191 /*******************************************************************************
192 **
193 ** Function dis_gatt_c_read_dis_value_cmpl
194 **
195 ** Description Client read DIS database complete callback.
196 **
197 ** Returns void
198 **
199 *******************************************************************************/
dis_gatt_c_read_dis_value_cmpl(UINT16 conn_id)200 void dis_gatt_c_read_dis_value_cmpl(UINT16 conn_id)
201 {
202 tSRVC_CLCB *p_clcb = srvc_eng_find_clcb_by_conn_id(conn_id);
203
204 dis_cb.dis_read_uuid_idx = 0xff;
205
206 srvc_eng_release_channel(conn_id);
207
208 if (dis_cb.p_read_dis_cback && p_clcb)
209 {
210 GATT_TRACE_ERROR("dis_gatt_c_read_dis_value_cmpl: attr_mask = 0x%04x", p_clcb->dis_value.attr_mask);
211 GATT_TRACE_EVENT("calling p_read_dis_cbackd");
212
213 (*dis_cb.p_read_dis_cback)(p_clcb->bda, &p_clcb->dis_value);
214 dis_cb.p_read_dis_cback=NULL;
215 }
216
217 }
218
219 /*******************************************************************************
220 **
221 ** Function dis_gatt_c_read_dis_req
222 **
223 ** Description Read remote device DIS attribute request.
224 **
225 ** Returns void
226 **
227 *******************************************************************************/
dis_gatt_c_read_dis_req(UINT16 conn_id)228 BOOLEAN dis_gatt_c_read_dis_req(UINT16 conn_id)
229 {
230 tGATT_READ_PARAM param;
231
232 memset(¶m, 0, sizeof(tGATT_READ_PARAM));
233
234 param.service.uuid.len = LEN_UUID_16;
235 param.service.s_handle = 1;
236 param.service.e_handle = 0xFFFF;
237 param.service.auth_req = 0;
238
239 while (dis_cb.dis_read_uuid_idx < DIS_MAX_CHAR_NUM)
240 {
241 if (dis_uuid_to_attr(dis_attr_uuid[dis_cb.dis_read_uuid_idx]) &
242 dis_cb.request_mask)
243 {
244 param.service.uuid.uu.uuid16 = dis_attr_uuid[dis_cb.dis_read_uuid_idx];
245
246 if (GATTC_Read(conn_id, GATT_READ_BY_TYPE, ¶m) == GATT_SUCCESS)
247 return TRUE;
248
249 GATT_TRACE_ERROR ("Read DISInfo: 0x%04x GATT_Read Failed", param.service.uuid.uu.uuid16);
250 }
251
252 dis_cb.dis_read_uuid_idx++;
253 }
254
255 dis_gatt_c_read_dis_value_cmpl(conn_id);
256
257 return(FALSE);
258 }
259
260 /*******************************************************************************
261 **
262 ** Function dis_c_cmpl_cback
263 **
264 ** Description Client operation complete callback.
265 **
266 ** Returns void
267 **
268 *******************************************************************************/
dis_c_cmpl_cback(tSRVC_CLCB * p_clcb,tGATTC_OPTYPE op,tGATT_STATUS status,tGATT_CL_COMPLETE * p_data)269 void dis_c_cmpl_cback (tSRVC_CLCB *p_clcb, tGATTC_OPTYPE op,
270 tGATT_STATUS status, tGATT_CL_COMPLETE *p_data)
271 {
272 UINT16 read_type = dis_attr_uuid[dis_cb.dis_read_uuid_idx];
273 UINT8 *pp = NULL, *p_str;
274 UINT16 conn_id = p_clcb->conn_id;
275
276 GATT_TRACE_EVENT ("dis_c_cmpl_cback() - op_code: 0x%02x status: 0x%02x \
277 read_type: 0x%04x", op, status, read_type);
278
279 if (op != GATTC_OPTYPE_READ)
280 return;
281
282 if (p_data != NULL && status == GATT_SUCCESS)
283 {
284 pp = p_data->att_value.value;
285
286 switch (read_type)
287 {
288 case GATT_UUID_SYSTEM_ID:
289 GATT_TRACE_EVENT ("DIS_ATTR_SYS_ID_BIT");
290 if (p_data->att_value.len == DIS_SYSTEM_ID_SIZE)
291 {
292 p_clcb->dis_value.attr_mask |= DIS_ATTR_SYS_ID_BIT;
293 /* save system ID*/
294 STREAM_TO_UINT64 (p_clcb->dis_value.system_id, pp);
295 }
296 break;
297
298 case GATT_UUID_PNP_ID:
299 if (p_data->att_value.len == DIS_PNP_ID_SIZE)
300 {
301 p_clcb->dis_value.attr_mask |= DIS_ATTR_PNP_ID_BIT;
302 STREAM_TO_UINT8 (p_clcb->dis_value.pnp_id.vendor_id_src, pp);
303 STREAM_TO_UINT16 (p_clcb->dis_value.pnp_id.vendor_id, pp);
304 STREAM_TO_UINT16 (p_clcb->dis_value.pnp_id.product_id, pp);
305 STREAM_TO_UINT16 (p_clcb->dis_value.pnp_id.product_version, pp);
306 }
307 break;
308
309 case GATT_UUID_MODEL_NUMBER_STR:
310 case GATT_UUID_SERIAL_NUMBER_STR:
311 case GATT_UUID_FW_VERSION_STR:
312 case GATT_UUID_HW_VERSION_STR:
313 case GATT_UUID_SW_VERSION_STR:
314 case GATT_UUID_MANU_NAME:
315 case GATT_UUID_IEEE_DATA:
316 p_str = p_clcb->dis_value.data_string[read_type - GATT_UUID_MODEL_NUMBER_STR];
317 if (p_str != NULL)
318 GKI_freebuf(p_str);
319 if ((p_str = (UINT8 *)GKI_getbuf((UINT16)(p_data->att_value.len + 1))) != NULL)
320 {
321 p_clcb->dis_value.attr_mask |= dis_uuid_to_attr(read_type);
322 memcpy(p_str, p_data->att_value.value, p_data->att_value.len);
323 p_str[p_data->att_value.len] = 0;
324 p_clcb->dis_value.data_string[read_type - GATT_UUID_MODEL_NUMBER_STR] = p_str;
325 }
326 break;
327
328 default:
329 break;
330
331 break;
332 }/* end switch */
333 }/* end if */
334
335 dis_cb.dis_read_uuid_idx ++;
336
337 dis_gatt_c_read_dis_req(conn_id);
338 }
339
340
341 /*******************************************************************************
342 **
343 ** Function DIS_SrInit
344 **
345 ** Description Initialize the Device Information Service Server.
346 **
347 *******************************************************************************/
DIS_SrInit(tDIS_ATTR_MASK dis_attr_mask)348 tDIS_STATUS DIS_SrInit (tDIS_ATTR_MASK dis_attr_mask)
349 {
350 tBT_UUID uuid = {LEN_UUID_16, {UUID_SERVCLASS_DEVICE_INFO}};
351 UINT16 i = 0;
352 tGATT_STATUS status;
353 tDIS_DB_ENTRY *p_db_attr = &dis_cb.dis_attr[0];
354
355 if (dis_cb.enabled)
356 {
357 GATT_TRACE_ERROR("DIS already initalized");
358 return DIS_SUCCESS;
359 }
360
361 memset(&dis_cb, 0, sizeof(tDIS_CB));
362
363 dis_cb.service_handle = GATTS_CreateService (srvc_eng_cb.gatt_if , &uuid, 0, DIS_MAX_ATTR_NUM, TRUE);
364
365 if (dis_cb.service_handle == 0)
366 {
367 GATT_TRACE_ERROR("Can not create service, DIS_Init failed!");
368 return GATT_ERROR;
369 }
370 dis_cb.max_handle = dis_cb.service_handle + DIS_MAX_ATTR_NUM;
371
372 while (dis_attr_mask != 0 && i < DIS_MAX_CHAR_NUM)
373 {
374 /* add Manufacturer name
375 */
376 uuid.uu.uuid16 = p_db_attr->uuid = dis_attr_uuid[i];
377 p_db_attr->handle = GATTS_AddCharacteristic(dis_cb.service_handle, &uuid, GATT_PERM_READ, GATT_CHAR_PROP_BIT_READ);
378 GATT_TRACE_DEBUG ("DIS_SrInit: handle of new attribute 0x%04 = x%d", uuid.uu.uuid16, p_db_attr->handle );
379 p_db_attr ++;
380 i ++;
381 dis_attr_mask >>= 1;
382 }
383
384 /* start service
385 */
386 status = GATTS_StartService (srvc_eng_cb.gatt_if, dis_cb.service_handle, GATT_TRANSPORT_LE_BR_EDR);
387
388 dis_cb.enabled = TRUE;
389
390 return (tDIS_STATUS) status;
391 }
392 /*******************************************************************************
393 **
394 ** Function DIS_SrUpdate
395 **
396 ** Description Update the DIS server attribute values
397 **
398 *******************************************************************************/
DIS_SrUpdate(tDIS_ATTR_BIT dis_attr_bit,tDIS_ATTR * p_info)399 tDIS_STATUS DIS_SrUpdate(tDIS_ATTR_BIT dis_attr_bit, tDIS_ATTR *p_info)
400 {
401 UINT8 i = 1;
402 tDIS_STATUS st = DIS_SUCCESS;
403
404 if (dis_attr_bit & DIS_ATTR_SYS_ID_BIT)
405 {
406 dis_cb.dis_value.system_id = p_info->system_id;
407 }
408 else if (dis_attr_bit & DIS_ATTR_PNP_ID_BIT)
409 {
410 dis_cb.dis_value.pnp_id.vendor_id = p_info->pnp_id.vendor_id;
411 dis_cb.dis_value.pnp_id.vendor_id_src = p_info->pnp_id.vendor_id_src;
412 dis_cb.dis_value.pnp_id.product_id = p_info->pnp_id.product_id;
413 dis_cb.dis_value.pnp_id.product_version = p_info->pnp_id.product_version;
414 }
415 else
416 {
417 st = DIS_ILLEGAL_PARAM;
418
419 while (dis_attr_bit && i < (DIS_MAX_CHAR_NUM -1 ))
420 {
421 if (dis_attr_bit & (UINT16)(1 << i))
422 {
423 if (dis_cb.dis_value.data_string[i - 1] != NULL)
424 GKI_freebuf(dis_cb.dis_value.data_string[i - 1]);
425 /* coverity[OVERRUN-STATIC] False-positive : when i = 8, (1 << i) == DIS_ATTR_PNP_ID_BIT, and it will never come down here
426 CID 49902: Out-of-bounds read (OVERRUN_STATIC)
427 Overrunning static array "dis_cb.dis_value.data_string", with 7 elements, at position 7 with index variable "i".
428 */
429 if ((dis_cb.dis_value.data_string[i - 1] = (UINT8 *)GKI_getbuf((UINT16)(p_info->data_str.len + 1))) != NULL)
430 {
431
432 memcpy(dis_cb.dis_value.data_string[i - 1], p_info->data_str.p_data, p_info->data_str.len);
433 dis_cb.dis_value.data_string[i - 1][p_info->data_str.len] = 0; /* make sure null terminate */
434 st = DIS_SUCCESS;
435 }
436 else
437 st = DIS_NO_RESOURCES;
438
439 break;
440 }
441 i ++;
442 }
443 }
444 return st;
445 }
446 /*******************************************************************************
447 **
448 ** Function DIS_ReadDISInfo
449 **
450 ** Description Read remote device DIS information.
451 **
452 ** Returns void
453 **
454 *******************************************************************************/
DIS_ReadDISInfo(BD_ADDR peer_bda,tDIS_READ_CBACK * p_cback,tDIS_ATTR_MASK mask)455 BOOLEAN DIS_ReadDISInfo(BD_ADDR peer_bda, tDIS_READ_CBACK *p_cback, tDIS_ATTR_MASK mask)
456 {
457 UINT16 conn_id;
458
459 /* Initialize the DIS client if it hasn't been initialized already. */
460 srvc_eng_init();
461
462 /* For now we only handle one at a time */
463 if (dis_cb.dis_read_uuid_idx != 0xff)
464 return(FALSE);
465
466 if (p_cback == NULL)
467 return(FALSE);
468
469 dis_cb.p_read_dis_cback = p_cback;
470 /* Mark currently active operation */
471 dis_cb.dis_read_uuid_idx = 0;
472
473 dis_cb.request_mask = mask;
474
475 GATT_TRACE_EVENT ("DIS_ReadDISInfo() - BDA: %08x%04x cl_read_uuid: 0x%04x",
476 (peer_bda[0]<<24)+(peer_bda[1]<<16)+(peer_bda[2]<<8)+peer_bda[3],
477 (peer_bda[4]<<8)+peer_bda[5], dis_attr_uuid[dis_cb.dis_read_uuid_idx]);
478
479
480 GATT_GetConnIdIfConnected(srvc_eng_cb.gatt_if, peer_bda, &conn_id, BT_TRANSPORT_LE);
481
482 /* need to enhance it as multiple service is needed */
483 srvc_eng_request_channel(peer_bda, SRVC_ID_DIS);
484
485 if (conn_id == GATT_INVALID_CONN_ID)
486 {
487 return GATT_Connect(srvc_eng_cb.gatt_if, peer_bda, TRUE, BT_TRANSPORT_LE);
488 }
489
490 return dis_gatt_c_read_dis_req(conn_id);
491
492 }
493 #endif /* BLE_INCLUDED */
494
495
496