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