| /****************************************************************************** |
| * |
| * Copyright (C) 2009-2012 Broadcom Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * this file contains GATT utility functions |
| * |
| ******************************************************************************/ |
| #include "bt_target.h" |
| #include "bt_utils.h" |
| #include "osi/include/osi.h" |
| |
| #include <string.h> |
| #include "bt_common.h" |
| #include "stdio.h" |
| |
| #include "btm_int.h" |
| #include "gatt_api.h" |
| #include "gatt_int.h" |
| #include "gattdefs.h" |
| #include "l2cdefs.h" |
| #include "sdp_api.h" |
| |
| using base::StringPrintf; |
| |
| /* check if [x, y] and [a, b] have overlapping range */ |
| #define GATT_VALIDATE_HANDLE_RANGE(x, y, a, b) ((y) >= (a) && (x) <= (b)) |
| |
| #define GATT_GET_NEXT_VALID_HANDLE(x) (((x) / 10 + 1) * 10) |
| |
| const char* const op_code_name[] = {"UNKNOWN", |
| "ATT_RSP_ERROR", |
| "ATT_REQ_MTU", |
| "ATT_RSP_MTU", |
| "ATT_REQ_READ_INFO", |
| "ATT_RSP_READ_INFO", |
| "ATT_REQ_FIND_TYPE_VALUE", |
| "ATT_RSP_FIND_TYPE_VALUE", |
| "ATT_REQ_READ_BY_TYPE", |
| "ATT_RSP_READ_BY_TYPE", |
| "ATT_REQ_READ", |
| "ATT_RSP_READ", |
| "ATT_REQ_READ_BLOB", |
| "ATT_RSP_READ_BLOB", |
| "GATT_REQ_READ_MULTI", |
| "GATT_RSP_READ_MULTI", |
| "GATT_REQ_READ_BY_GRP_TYPE", |
| "GATT_RSP_READ_BY_GRP_TYPE", |
| "ATT_REQ_WRITE", |
| "ATT_RSP_WRITE", |
| "ATT_CMD_WRITE", |
| "ATT_SIGN_CMD_WRITE", |
| "ATT_REQ_PREPARE_WRITE", |
| "ATT_RSP_PREPARE_WRITE", |
| "ATT_REQ_EXEC_WRITE", |
| "ATT_RSP_EXEC_WRITE", |
| "Reserved", |
| "ATT_HANDLE_VALUE_NOTIF", |
| "Reserved", |
| "ATT_HANDLE_VALUE_IND", |
| "ATT_HANDLE_VALUE_CONF", |
| "ATT_OP_CODE_MAX"}; |
| |
| static const uint8_t base_uuid[LEN_UUID_128] = { |
| 0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, |
| 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
| |
| extern fixed_queue_t* btu_general_alarm_queue; |
| |
| /******************************************************************************* |
| * |
| * Function gatt_free_pending_ind |
| * |
| * Description Free all pending indications |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void gatt_free_pending_ind(tGATT_TCB* p_tcb) { |
| VLOG(1) << __func__; |
| |
| if (p_tcb->pending_ind_q == NULL) return; |
| |
| /* release all queued indications */ |
| while (!fixed_queue_is_empty(p_tcb->pending_ind_q)) |
| osi_free(fixed_queue_try_dequeue(p_tcb->pending_ind_q)); |
| fixed_queue_free(p_tcb->pending_ind_q, NULL); |
| p_tcb->pending_ind_q = NULL; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_delete_dev_from_srv_chg_clt_list |
| * |
| * Description Delete a device from the service changed client lit |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void gatt_delete_dev_from_srv_chg_clt_list(const RawAddress& bd_addr) { |
| VLOG(1) << __func__; |
| |
| tGATTS_SRV_CHG* p_buf = gatt_is_bda_in_the_srv_chg_clt_list(bd_addr); |
| if (p_buf != NULL) { |
| if (gatt_cb.cb_info.p_srv_chg_callback) { |
| /* delete from NV */ |
| tGATTS_SRV_CHG_REQ req; |
| req.srv_chg.bda = bd_addr; |
| (*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_REMOVE_CLIENT, |
| &req, NULL); |
| } |
| osi_free(fixed_queue_try_remove_from_queue(gatt_cb.srv_chg_clt_q, p_buf)); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_set_srv_chg |
| * |
| * Description Set the service changed flag to true |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void gatt_set_srv_chg(void) { |
| VLOG(1) << __func__; |
| |
| if (fixed_queue_is_empty(gatt_cb.srv_chg_clt_q)) return; |
| |
| list_t* list = fixed_queue_get_list(gatt_cb.srv_chg_clt_q); |
| for (const list_node_t* node = list_begin(list); node != list_end(list); |
| node = list_next(node)) { |
| VLOG(1) << "found a srv_chg clt"; |
| |
| tGATTS_SRV_CHG* p_buf = (tGATTS_SRV_CHG*)list_node(node); |
| if (!p_buf->srv_changed) { |
| VLOG(1) << "set srv_changed to true"; |
| p_buf->srv_changed = true; |
| tGATTS_SRV_CHG_REQ req; |
| memcpy(&req.srv_chg, p_buf, sizeof(tGATTS_SRV_CHG)); |
| if (gatt_cb.cb_info.p_srv_chg_callback) |
| (*gatt_cb.cb_info.p_srv_chg_callback)(GATTS_SRV_CHG_CMD_UPDATE_CLIENT, |
| &req, NULL); |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_add_pending_ind |
| * |
| * Description Add a pending indication |
| * |
| * Returns Pointer to the current pending indication buffer, NULL no buffer |
| * available |
| * |
| ******************************************************************************/ |
| tGATT_VALUE* gatt_add_pending_ind(tGATT_TCB* p_tcb, tGATT_VALUE* p_ind) { |
| tGATT_VALUE* p_buf = (tGATT_VALUE*)osi_malloc(sizeof(tGATT_VALUE)); |
| |
| VLOG(1) << __func__ << "enqueue a pending indication"; |
| |
| memcpy(p_buf, p_ind, sizeof(tGATT_VALUE)); |
| fixed_queue_enqueue(p_tcb->pending_ind_q, p_buf); |
| |
| return p_buf; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_add_srv_chg_clt |
| * |
| * Description Add a service chnage client to the service change client queue |
| * |
| * Returns Pointer to the service change client buffer; Null no buffer |
| * available |
| * |
| ******************************************************************************/ |
| tGATTS_SRV_CHG* gatt_add_srv_chg_clt(tGATTS_SRV_CHG* p_srv_chg) { |
| tGATTS_SRV_CHG* p_buf = (tGATTS_SRV_CHG*)osi_malloc(sizeof(tGATTS_SRV_CHG)); |
| VLOG(1) << __func__ << "enqueue a srv chg client"; |
| |
| memcpy(p_buf, p_srv_chg, sizeof(tGATTS_SRV_CHG)); |
| fixed_queue_enqueue(gatt_cb.srv_chg_clt_q, p_buf); |
| |
| return p_buf; |
| } |
| |
| /** |
| * Returns pointer to the handle range buffer starting at handle |handle|, |
| * nullptr |
| * if no buffer available |
| */ |
| tGATT_HDL_LIST_ELEM* gatt_find_hdl_buffer_by_handle(uint16_t handle) { |
| for (auto& elem : *gatt_cb.hdl_list_info) { |
| if (elem.asgn_range.s_handle == handle) return &elem; |
| } |
| |
| return nullptr; |
| } |
| /******************************************************************************* |
| * |
| * Description Find handle range buffer by app ID, service and service instance |
| * ID. |
| * |
| * Returns Pointer to the buffer, NULL no buffer available |
| * |
| ******************************************************************************/ |
| std::list<tGATT_HDL_LIST_ELEM>::iterator gatt_find_hdl_buffer_by_app_id( |
| tBT_UUID* p_app_uuid128, tBT_UUID* p_svc_uuid, uint16_t start_handle) { |
| auto end_it = gatt_cb.hdl_list_info->end(); |
| auto it = gatt_cb.hdl_list_info->begin(); |
| for (; it != end_it; it++) { |
| if (gatt_uuid_compare(*p_app_uuid128, it->asgn_range.app_uuid128) && |
| gatt_uuid_compare(*p_svc_uuid, it->asgn_range.svc_uuid) && |
| (start_handle == it->asgn_range.s_handle)) { |
| return it; |
| } |
| } |
| |
| return it; |
| } |
| |
| /** |
| * free the service attribute database buffers by the owner of the service app |
| * ID. |
| */ |
| void gatt_free_srvc_db_buffer_app_id(tBT_UUID* p_app_id) { |
| auto it = gatt_cb.hdl_list_info->begin(); |
| auto end = gatt_cb.hdl_list_info->end(); |
| while (it != end) { |
| if (memcmp(p_app_id, &it->asgn_range.app_uuid128, sizeof(tBT_UUID)) == 0) { |
| it = gatt_cb.hdl_list_info->erase(it); |
| } else { |
| it++; |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_find_the_connected_bda |
| * |
| * Description This function find the connected bda |
| * |
| * Returns true if found |
| * |
| ******************************************************************************/ |
| bool gatt_find_the_connected_bda(uint8_t start_idx, RawAddress& bda, |
| uint8_t* p_found_idx, |
| tBT_TRANSPORT* p_transport) { |
| uint8_t i; |
| bool found = false; |
| VLOG(1) << __func__ << " start_idx=" << +start_idx; |
| |
| for (i = start_idx; i < GATT_MAX_PHY_CHANNEL; i++) { |
| if (gatt_cb.tcb[i].in_use && gatt_cb.tcb[i].ch_state == GATT_CH_OPEN) { |
| bda = gatt_cb.tcb[i].peer_bda; |
| *p_found_idx = i; |
| *p_transport = gatt_cb.tcb[i].transport; |
| found = true; |
| VLOG(1) << " bda :" << bda; |
| break; |
| } |
| } |
| VLOG(1) << StringPrintf(" found=%d found_idx=%d", found, i); |
| return found; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_is_srv_chg_ind_pending |
| * |
| * Description Check whether a service chnaged is in the indication pending |
| * queue or waiting for an Ack already |
| * |
| * Returns bool |
| * |
| ******************************************************************************/ |
| bool gatt_is_srv_chg_ind_pending(tGATT_TCB* p_tcb) { |
| bool srv_chg_ind_pending = false; |
| |
| VLOG(1) << __func__ |
| << " is_queue_empty=" << fixed_queue_is_empty(p_tcb->pending_ind_q); |
| |
| if (p_tcb->indicate_handle == gatt_cb.handle_of_h_r) { |
| srv_chg_ind_pending = true; |
| } else if (!fixed_queue_is_empty(p_tcb->pending_ind_q)) { |
| list_t* list = fixed_queue_get_list(p_tcb->pending_ind_q); |
| for (const list_node_t* node = list_begin(list); node != list_end(list); |
| node = list_next(node)) { |
| tGATT_VALUE* p_buf = (tGATT_VALUE*)list_node(node); |
| if (p_buf->handle == gatt_cb.handle_of_h_r) { |
| srv_chg_ind_pending = true; |
| break; |
| } |
| } |
| } |
| |
| VLOG(1) << __func__ << "srv_chg_ind_pending = %d", srv_chg_ind_pending; |
| return srv_chg_ind_pending; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_is_bda_in_the_srv_chg_clt_list |
| * |
| * Description This function check the specified bda is in the srv chg |
| * client list or not |
| * |
| * Returns pointer to the found elemenet otherwise NULL |
| * |
| ******************************************************************************/ |
| tGATTS_SRV_CHG* gatt_is_bda_in_the_srv_chg_clt_list(const RawAddress& bda) { |
| tGATTS_SRV_CHG* p_buf = NULL; |
| |
| VLOG(1) << __func__ << ": " << bda; |
| |
| if (fixed_queue_is_empty(gatt_cb.srv_chg_clt_q)) return NULL; |
| |
| list_t* list = fixed_queue_get_list(gatt_cb.srv_chg_clt_q); |
| for (const list_node_t* node = list_begin(list); node != list_end(list); |
| node = list_next(node)) { |
| tGATTS_SRV_CHG* p_buf = (tGATTS_SRV_CHG*)list_node(node); |
| if (bda == p_buf->bda) { |
| VLOG(1) << "bda is in the srv chg clt list"; |
| break; |
| } |
| } |
| |
| return p_buf; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_is_bda_connected |
| * |
| * Description |
| * |
| * Returns GATT_INDEX_INVALID if not found. Otherwise index to the tcb. |
| * |
| ******************************************************************************/ |
| bool gatt_is_bda_connected(const RawAddress& bda) { |
| uint8_t i = 0; |
| bool connected = false; |
| |
| for (i = 0; i < GATT_MAX_PHY_CHANNEL; i++) { |
| if (gatt_cb.tcb[i].in_use && gatt_cb.tcb[i].peer_bda == bda) { |
| connected = true; |
| break; |
| } |
| } |
| return connected; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_find_i_tcb_by_addr |
| * |
| * Description Search for an empty tcb entry, and return the index. |
| * |
| * Returns GATT_INDEX_INVALID if not found. Otherwise index to the tcb. |
| * |
| ******************************************************************************/ |
| uint8_t gatt_find_i_tcb_by_addr(const RawAddress& bda, |
| tBT_TRANSPORT transport) { |
| uint8_t i = 0; |
| |
| for (; i < GATT_MAX_PHY_CHANNEL; i++) { |
| if (gatt_cb.tcb[i].peer_bda == bda && |
| gatt_cb.tcb[i].transport == transport) { |
| return i; |
| } |
| } |
| return GATT_INDEX_INVALID; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_get_tcb_by_idx |
| * |
| * Description The function get TCB using the TCB index |
| * |
| * Returns NULL if not found. Otherwise index to the tcb. |
| * |
| ******************************************************************************/ |
| tGATT_TCB* gatt_get_tcb_by_idx(uint8_t tcb_idx) { |
| tGATT_TCB* p_tcb = NULL; |
| |
| if ((tcb_idx < GATT_MAX_PHY_CHANNEL) && gatt_cb.tcb[tcb_idx].in_use) |
| p_tcb = &gatt_cb.tcb[tcb_idx]; |
| |
| return p_tcb; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_find_tcb_by_addr |
| * |
| * Description Search for an empty tcb entry, and return pointer. |
| * |
| * Returns NULL if not found. Otherwise index to the tcb. |
| * |
| ******************************************************************************/ |
| tGATT_TCB* gatt_find_tcb_by_addr(const RawAddress& bda, |
| tBT_TRANSPORT transport) { |
| tGATT_TCB* p_tcb = NULL; |
| uint8_t i = 0; |
| |
| i = gatt_find_i_tcb_by_addr(bda, transport); |
| if (i != GATT_INDEX_INVALID) p_tcb = &gatt_cb.tcb[i]; |
| |
| return p_tcb; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_allocate_tcb_by_bdaddr |
| * |
| * Description Locate or allocate a new tcb entry for matching bda. |
| * |
| * Returns GATT_INDEX_INVALID if not found. Otherwise index to the tcb. |
| * |
| ******************************************************************************/ |
| tGATT_TCB* gatt_allocate_tcb_by_bdaddr(const RawAddress& bda, |
| tBT_TRANSPORT transport) { |
| /* search for existing tcb with matching bda */ |
| uint8_t j = gatt_find_i_tcb_by_addr(bda, transport); |
| if (j != GATT_INDEX_INVALID) return &gatt_cb.tcb[j]; |
| |
| /* find free tcb */ |
| for (int i = 0; i < GATT_MAX_PHY_CHANNEL; i++) { |
| tGATT_TCB* p_tcb = &gatt_cb.tcb[i]; |
| if (p_tcb->in_use) continue; |
| |
| *p_tcb = tGATT_TCB(); |
| |
| p_tcb->pending_ind_q = fixed_queue_new(SIZE_MAX); |
| p_tcb->conf_timer = alarm_new("gatt.conf_timer"); |
| p_tcb->ind_ack_timer = alarm_new("gatt.ind_ack_timer"); |
| p_tcb->in_use = true; |
| p_tcb->tcb_idx = i; |
| p_tcb->transport = transport; |
| p_tcb->peer_bda = bda; |
| return p_tcb; |
| } |
| |
| return NULL; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_convert_uuid16_to_uuid128 |
| * |
| * Description Convert a 16 bits UUID to be an standard 128 bits one. |
| * |
| * Returns true if two uuid match; false otherwise. |
| * |
| ******************************************************************************/ |
| void gatt_convert_uuid16_to_uuid128(uint8_t uuid_128[LEN_UUID_128], |
| uint16_t uuid_16) { |
| uint8_t* p = &uuid_128[LEN_UUID_128 - 4]; |
| |
| memcpy(uuid_128, base_uuid, LEN_UUID_128); |
| |
| UINT16_TO_STREAM(p, uuid_16); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_convert_uuid32_to_uuid128 |
| * |
| * Description Convert a 32 bits UUID to be an standard 128 bits one. |
| * |
| * Returns true if two uuid match; false otherwise. |
| * |
| ******************************************************************************/ |
| void gatt_convert_uuid32_to_uuid128(uint8_t uuid_128[LEN_UUID_128], |
| uint32_t uuid_32) { |
| uint8_t* p = &uuid_128[LEN_UUID_128 - 4]; |
| |
| memcpy(uuid_128, base_uuid, LEN_UUID_128); |
| |
| UINT32_TO_STREAM(p, uuid_32); |
| } |
| /******************************************************************************* |
| * |
| * Function gatt_uuid_compare |
| * |
| * Description Compare two UUID to see if they are the same. |
| * |
| * Returns true if two uuid match; false otherwise. |
| * |
| ******************************************************************************/ |
| bool gatt_uuid_compare(tBT_UUID src, tBT_UUID tar) { |
| uint8_t su[LEN_UUID_128], tu[LEN_UUID_128]; |
| uint8_t *ps, *pt; |
| |
| /* any of the UUID is unspecified */ |
| if (src.len == 0 || tar.len == 0) { |
| return true; |
| } |
| |
| /* If both are 16-bit, we can do a simple compare */ |
| if (src.len == LEN_UUID_16 && tar.len == LEN_UUID_16) { |
| return src.uu.uuid16 == tar.uu.uuid16; |
| } |
| |
| /* If both are 32-bit, we can do a simple compare */ |
| if (src.len == LEN_UUID_32 && tar.len == LEN_UUID_32) { |
| return src.uu.uuid32 == tar.uu.uuid32; |
| } |
| |
| /* One or both of the UUIDs is 128-bit */ |
| if (src.len == LEN_UUID_16) { |
| /* convert a 16 bits UUID to 128 bits value */ |
| gatt_convert_uuid16_to_uuid128(su, src.uu.uuid16); |
| ps = su; |
| } else if (src.len == LEN_UUID_32) { |
| gatt_convert_uuid32_to_uuid128(su, src.uu.uuid32); |
| ps = su; |
| } else |
| ps = src.uu.uuid128; |
| |
| if (tar.len == LEN_UUID_16) { |
| /* convert a 16 bits UUID to 128 bits value */ |
| gatt_convert_uuid16_to_uuid128(tu, tar.uu.uuid16); |
| pt = tu; |
| } else if (tar.len == LEN_UUID_32) { |
| /* convert a 32 bits UUID to 128 bits value */ |
| gatt_convert_uuid32_to_uuid128(tu, tar.uu.uuid32); |
| pt = tu; |
| } else |
| pt = tar.uu.uuid128; |
| |
| return (memcmp(ps, pt, LEN_UUID_128) == 0); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_build_uuid_to_stream |
| * |
| * Description Add UUID into stream. |
| * |
| * Returns UUID length. |
| * |
| ******************************************************************************/ |
| uint8_t gatt_build_uuid_to_stream(uint8_t** p_dst, tBT_UUID uuid) { |
| uint8_t* p = *p_dst; |
| uint8_t len = 0; |
| |
| if (uuid.len == LEN_UUID_16) { |
| UINT16_TO_STREAM(p, uuid.uu.uuid16); |
| len = LEN_UUID_16; |
| } else if (uuid.len == |
| LEN_UUID_32) /* always convert 32 bits into 128 bits as alwats */ |
| { |
| gatt_convert_uuid32_to_uuid128(p, uuid.uu.uuid32); |
| p += LEN_UUID_128; |
| len = LEN_UUID_128; |
| } else if (uuid.len == LEN_UUID_128) { |
| ARRAY_TO_STREAM(p, uuid.uu.uuid128, LEN_UUID_128); |
| len = LEN_UUID_128; |
| } |
| |
| *p_dst = p; |
| return len; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_parse_uuid_from_cmd |
| * |
| * Description Convert a 128 bits UUID into a 16 bits UUID. |
| * |
| * Returns true if command sent, otherwise false. |
| * |
| ******************************************************************************/ |
| bool gatt_parse_uuid_from_cmd(tBT_UUID* p_uuid_rec, uint16_t uuid_size, |
| uint8_t** p_data) { |
| bool is_base_uuid, ret = true; |
| uint8_t xx; |
| uint8_t* p_uuid = *p_data; |
| |
| memset(p_uuid_rec, 0, sizeof(tBT_UUID)); |
| |
| switch (uuid_size) { |
| case LEN_UUID_16: |
| p_uuid_rec->len = uuid_size; |
| STREAM_TO_UINT16(p_uuid_rec->uu.uuid16, p_uuid); |
| *p_data += LEN_UUID_16; |
| break; |
| |
| case LEN_UUID_128: |
| /* See if we can compress his UUID down to 16 or 32bit UUIDs */ |
| is_base_uuid = true; |
| for (xx = 0; xx < LEN_UUID_128 - 4; xx++) { |
| if (p_uuid[xx] != base_uuid[xx]) { |
| is_base_uuid = false; |
| break; |
| } |
| } |
| if (is_base_uuid) { |
| if ((p_uuid[LEN_UUID_128 - 1] == 0) && |
| (p_uuid[LEN_UUID_128 - 2] == 0)) { |
| p_uuid += (LEN_UUID_128 - 4); |
| p_uuid_rec->len = LEN_UUID_16; |
| STREAM_TO_UINT16(p_uuid_rec->uu.uuid16, p_uuid); |
| } else { |
| p_uuid += (LEN_UUID_128 - LEN_UUID_32); |
| p_uuid_rec->len = LEN_UUID_32; |
| STREAM_TO_UINT32(p_uuid_rec->uu.uuid32, p_uuid); |
| } |
| } |
| if (!is_base_uuid) { |
| p_uuid_rec->len = LEN_UUID_128; |
| memcpy(p_uuid_rec->uu.uuid128, p_uuid, LEN_UUID_128); |
| } |
| *p_data += LEN_UUID_128; |
| break; |
| |
| /* do not allow 32 bits UUID in ATT PDU now */ |
| case LEN_UUID_32: |
| LOG(ERROR) << "DO NOT ALLOW 32 BITS UUID IN ATT PDU"; |
| return false; |
| case 0: |
| default: |
| if (uuid_size != 0) ret = false; |
| LOG(WARNING) << __func__ << ": invalid uuid size"; |
| break; |
| } |
| |
| return (ret); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_start_rsp_timer |
| * |
| * Description Start a wait_for_response timer. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void gatt_start_rsp_timer(tGATT_CLCB* p_clcb) { |
| period_ms_t timeout_ms = GATT_WAIT_FOR_RSP_TIMEOUT_MS; |
| |
| if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY && |
| p_clcb->op_subtype == GATT_DISC_SRVC_ALL) { |
| timeout_ms = GATT_WAIT_FOR_DISC_RSP_TIMEOUT_MS; |
| } |
| |
| // TODO: The tGATT_CLCB memory and state management needs cleanup, |
| // and then the timers can be allocated elsewhere. |
| if (p_clcb->gatt_rsp_timer_ent == NULL) { |
| p_clcb->gatt_rsp_timer_ent = alarm_new("gatt.gatt_rsp_timer_ent"); |
| } |
| alarm_set_on_queue(p_clcb->gatt_rsp_timer_ent, timeout_ms, gatt_rsp_timeout, |
| p_clcb, btu_general_alarm_queue); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_start_conf_timer |
| * |
| * Description Start a wait_for_confirmation timer. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void gatt_start_conf_timer(tGATT_TCB* p_tcb) { |
| alarm_set_on_queue(p_tcb->conf_timer, GATT_WAIT_FOR_RSP_TIMEOUT_MS, |
| gatt_indication_confirmation_timeout, p_tcb, |
| btu_general_alarm_queue); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_start_ind_ack_timer |
| * |
| * Description start the application ack timer |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void gatt_start_ind_ack_timer(tGATT_TCB& tcb) { |
| /* start notification cache timer */ |
| alarm_set_on_queue(tcb.ind_ack_timer, GATT_WAIT_FOR_RSP_TIMEOUT_MS, |
| gatt_ind_ack_timeout, &tcb, btu_general_alarm_queue); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_rsp_timeout |
| * |
| * Description Called when GATT wait for ATT command response timer expires |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void gatt_rsp_timeout(void* data) { |
| tGATT_CLCB* p_clcb = (tGATT_CLCB*)data; |
| |
| if (p_clcb == NULL || p_clcb->p_tcb == NULL) { |
| LOG(WARNING) << __func__ << " clcb is already deleted"; |
| return; |
| } |
| if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY && |
| p_clcb->op_subtype == GATT_DISC_SRVC_ALL && |
| p_clcb->retry_count < GATT_REQ_RETRY_LIMIT) { |
| uint8_t rsp_code; |
| LOG(WARNING) << __func__ << " retry discovery primary service"; |
| if (p_clcb != gatt_cmd_dequeue(*p_clcb->p_tcb, &rsp_code)) { |
| LOG(ERROR) << __func__ << " command queue out of sync, disconnect"; |
| } else { |
| p_clcb->retry_count++; |
| gatt_act_discovery(p_clcb); |
| return; |
| } |
| } |
| |
| LOG(WARNING) << __func__ << " disconnecting..."; |
| gatt_disconnect(p_clcb->p_tcb); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_indication_confirmation_timeout |
| * |
| * Description Called when the indication confirmation timer expires |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void gatt_indication_confirmation_timeout(void* data) { |
| tGATT_TCB* p_tcb = (tGATT_TCB*)data; |
| |
| LOG(WARNING) << __func__ << " disconnecting..."; |
| gatt_disconnect(p_tcb); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_ind_ack_timeout |
| * |
| * Description Called when GATT wait for ATT handle confirmation timeout |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void gatt_ind_ack_timeout(void* data) { |
| tGATT_TCB* p_tcb = (tGATT_TCB*)data; |
| CHECK(p_tcb); |
| |
| LOG(WARNING) << __func__ << ": send ack now"; |
| p_tcb->ind_count = 0; |
| attp_send_cl_msg(*p_tcb, nullptr, GATT_HANDLE_VALUE_CONF, NULL); |
| } |
| /******************************************************************************* |
| * |
| * Description Search for a service that owns a specific handle. |
| * |
| * Returns GATT_MAX_SR_PROFILES if not found. Otherwise the index of |
| * the service. |
| * |
| ******************************************************************************/ |
| std::list<tGATT_SRV_LIST_ELEM>::iterator gatt_sr_find_i_rcb_by_handle( |
| uint16_t handle) { |
| auto it = gatt_cb.srv_list_info->begin(); |
| |
| for (; it != gatt_cb.srv_list_info->end(); it++) { |
| if (it->s_hdl <= handle && it->e_hdl >= handle) { |
| return it; |
| } |
| } |
| |
| return it; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_sr_get_sec_info |
| * |
| * Description Get the security flag and key size information for the peer |
| * device. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void gatt_sr_get_sec_info(const RawAddress& rem_bda, tBT_TRANSPORT transport, |
| uint8_t* p_sec_flag, uint8_t* p_key_size) { |
| uint8_t sec_flag = 0; |
| |
| BTM_GetSecurityFlagsByTransport(rem_bda, &sec_flag, transport); |
| |
| sec_flag &= (GATT_SEC_FLAG_LKEY_UNAUTHED | GATT_SEC_FLAG_LKEY_AUTHED | |
| GATT_SEC_FLAG_ENCRYPTED); |
| |
| *p_key_size = btm_ble_read_sec_key_size(rem_bda); |
| *p_sec_flag = sec_flag; |
| } |
| /******************************************************************************* |
| * |
| * Function gatt_sr_send_req_callback |
| * |
| * Description |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void gatt_sr_send_req_callback(uint16_t conn_id, uint32_t trans_id, |
| tGATTS_REQ_TYPE type, tGATTS_DATA* p_data) { |
| tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id); |
| tGATT_REG* p_reg = gatt_get_regcb(gatt_if); |
| |
| if (!p_reg) { |
| LOG(ERROR) << "p_reg not found discard request"; |
| return; |
| } |
| |
| if (p_reg->in_use && p_reg->app_cb.p_req_cb) { |
| (*p_reg->app_cb.p_req_cb)(conn_id, trans_id, type, p_data); |
| } else { |
| LOG(WARNING) << "Call back not found for application conn_id=" << conn_id; |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_send_error_rsp |
| * |
| * Description This function sends an error response. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| tGATT_STATUS gatt_send_error_rsp(tGATT_TCB& tcb, uint8_t err_code, |
| uint8_t op_code, uint16_t handle, bool deq) { |
| tGATT_ERROR error; |
| tGATT_STATUS status; |
| BT_HDR* p_buf; |
| |
| error.cmd_code = op_code; |
| error.reason = err_code; |
| error.handle = handle; |
| |
| p_buf = attp_build_sr_msg(tcb, GATT_RSP_ERROR, (tGATT_SR_MSG*)&error); |
| if (p_buf != NULL) { |
| status = attp_send_sr_msg(tcb, p_buf); |
| } else |
| status = GATT_INSUF_RESOURCE; |
| |
| if (deq) gatt_dequeue_sr_cmd(tcb); |
| |
| return status; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_add_sdp_record |
| * |
| * Description This function add a SDP record for a GATT primary service |
| * |
| * Returns 0 if error else sdp handle for the record. |
| * |
| ******************************************************************************/ |
| uint32_t gatt_add_sdp_record(tBT_UUID* p_uuid, uint16_t start_hdl, |
| uint16_t end_hdl) { |
| tSDP_PROTOCOL_ELEM proto_elem_list[2]; |
| uint32_t sdp_handle; |
| uint16_t list = UUID_SERVCLASS_PUBLIC_BROWSE_GROUP; |
| uint8_t buff[60]; |
| uint8_t* p = buff; |
| |
| VLOG(1) << __func__ |
| << StringPrintf(" s_hdl=0x%x s_hdl=0x%x", start_hdl, end_hdl); |
| |
| sdp_handle = SDP_CreateRecord(); |
| if (sdp_handle == 0) return 0; |
| |
| switch (p_uuid->len) { |
| case LEN_UUID_16: |
| SDP_AddServiceClassIdList(sdp_handle, 1, &p_uuid->uu.uuid16); |
| break; |
| |
| case LEN_UUID_32: |
| UINT8_TO_BE_STREAM(p, (UUID_DESC_TYPE << 3) | SIZE_FOUR_BYTES); |
| UINT32_TO_BE_STREAM(p, p_uuid->uu.uuid32); |
| SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_CLASS_ID_LIST, |
| DATA_ELE_SEQ_DESC_TYPE, (uint32_t)(p - buff), buff); |
| break; |
| |
| case LEN_UUID_128: |
| UINT8_TO_BE_STREAM(p, (UUID_DESC_TYPE << 3) | SIZE_SIXTEEN_BYTES); |
| ARRAY_TO_BE_STREAM_REVERSE(p, p_uuid->uu.uuid128, LEN_UUID_128); |
| SDP_AddAttribute(sdp_handle, ATTR_ID_SERVICE_CLASS_ID_LIST, |
| DATA_ELE_SEQ_DESC_TYPE, (uint32_t)(p - buff), buff); |
| break; |
| |
| default: |
| LOG(ERROR) << "inavlid UUID len=" << +p_uuid->len; |
| SDP_DeleteRecord(sdp_handle); |
| return 0; |
| break; |
| } |
| |
| /*** Fill out the protocol element sequence for SDP ***/ |
| proto_elem_list[0].protocol_uuid = UUID_PROTOCOL_L2CAP; |
| proto_elem_list[0].num_params = 1; |
| proto_elem_list[0].params[0] = BT_PSM_ATT; |
| proto_elem_list[1].protocol_uuid = UUID_PROTOCOL_ATT; |
| proto_elem_list[1].num_params = 2; |
| proto_elem_list[1].params[0] = start_hdl; |
| proto_elem_list[1].params[1] = end_hdl; |
| |
| SDP_AddProtocolList(sdp_handle, 2, proto_elem_list); |
| |
| /* Make the service browseable */ |
| SDP_AddUuidSequence(sdp_handle, ATTR_ID_BROWSE_GROUP_LIST, 1, &list); |
| |
| return (sdp_handle); |
| } |
| |
| #if GATT_CONFORMANCE_TESTING == TRUE |
| /******************************************************************************* |
| * |
| * Function gatt_set_err_rsp |
| * |
| * Description This function is called to set the test confirm value |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void gatt_set_err_rsp(bool enable, uint8_t req_op_code, uint8_t err_status) { |
| VLOG(1) << __func__ << StringPrintf(" enable=%d op_code=%d, err_status=%d", |
| enable, req_op_code, err_status); |
| gatt_cb.enable_err_rsp = enable; |
| gatt_cb.req_op_code = req_op_code; |
| gatt_cb.err_status = err_status; |
| } |
| #endif |
| |
| /******************************************************************************* |
| * |
| * Function gatt_get_regcb |
| * |
| * Description The function returns the registration control block. |
| * |
| * Returns pointer to the registration control block or NULL |
| * |
| ******************************************************************************/ |
| tGATT_REG* gatt_get_regcb(tGATT_IF gatt_if) { |
| uint8_t ii = (uint8_t)gatt_if; |
| tGATT_REG* p_reg = NULL; |
| |
| if (ii < 1 || ii > GATT_MAX_APPS) { |
| LOG(WARNING) << "gatt_if out of range = " << +ii; |
| return NULL; |
| } |
| |
| // Index for cl_rcb is always 1 less than gatt_if. |
| p_reg = &gatt_cb.cl_rcb[ii - 1]; |
| |
| if (!p_reg->in_use) { |
| LOG(WARNING) << "gatt_if found but not in use."; |
| return NULL; |
| } |
| |
| return p_reg; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_is_clcb_allocated |
| * |
| * Description The function check clcb for conn_id is allocated or not |
| * |
| * Returns True already allocated |
| * |
| ******************************************************************************/ |
| |
| bool gatt_is_clcb_allocated(uint16_t conn_id) { |
| uint8_t i = 0; |
| bool is_allocated = false; |
| |
| for (i = 0; i < GATT_CL_MAX_LCB; i++) { |
| if (gatt_cb.clcb[i].in_use && (gatt_cb.clcb[i].conn_id == conn_id)) { |
| is_allocated = true; |
| break; |
| } |
| } |
| |
| return is_allocated; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_clcb_alloc |
| * |
| * Description The function allocates a GATT connection link control block |
| * |
| * Returns NULL if not found. Otherwise pointer to the connection link |
| * block. |
| * |
| ******************************************************************************/ |
| tGATT_CLCB* gatt_clcb_alloc(uint16_t conn_id) { |
| uint8_t i = 0; |
| tGATT_CLCB* p_clcb = NULL; |
| tGATT_IF gatt_if = GATT_GET_GATT_IF(conn_id); |
| uint8_t tcb_idx = GATT_GET_TCB_IDX(conn_id); |
| tGATT_TCB* p_tcb = gatt_get_tcb_by_idx(tcb_idx); |
| tGATT_REG* p_reg = gatt_get_regcb(gatt_if); |
| |
| for (i = 0; i < GATT_CL_MAX_LCB; i++) { |
| if (!gatt_cb.clcb[i].in_use) { |
| p_clcb = &gatt_cb.clcb[i]; |
| |
| p_clcb->in_use = true; |
| p_clcb->conn_id = conn_id; |
| p_clcb->p_reg = p_reg; |
| p_clcb->p_tcb = p_tcb; |
| break; |
| } |
| } |
| |
| return p_clcb; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_clcb_dealloc |
| * |
| * Description The function de-allocates a GATT connection link control |
| * block |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void gatt_clcb_dealloc(tGATT_CLCB* p_clcb) { |
| if (p_clcb && p_clcb->in_use) { |
| alarm_free(p_clcb->gatt_rsp_timer_ent); |
| memset(p_clcb, 0, sizeof(tGATT_CLCB)); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_find_tcb_by_cid |
| * |
| * Description The function searches for an empty entry |
| * in registration info table for GATT client |
| * |
| * Returns NULL if not found. Otherwise pointer to the rcb. |
| * |
| ******************************************************************************/ |
| tGATT_TCB* gatt_find_tcb_by_cid(uint16_t lcid) { |
| uint16_t xx = 0; |
| tGATT_TCB* p_tcb = NULL; |
| |
| for (xx = 0; xx < GATT_MAX_PHY_CHANNEL; xx++) { |
| if (gatt_cb.tcb[xx].in_use && gatt_cb.tcb[xx].att_lcid == lcid) { |
| p_tcb = &gatt_cb.tcb[xx]; |
| break; |
| } |
| } |
| return p_tcb; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_num_clcb_by_bd_addr |
| * |
| * Description The function searches all LCB with macthing bd address |
| * |
| * Returns total number of clcb found. |
| * |
| ******************************************************************************/ |
| uint8_t gatt_num_clcb_by_bd_addr(const RawAddress& bda) { |
| uint8_t i, num = 0; |
| |
| for (i = 0; i < GATT_CL_MAX_LCB; i++) { |
| if (gatt_cb.clcb[i].in_use && gatt_cb.clcb[i].p_tcb->peer_bda == bda) num++; |
| } |
| return num; |
| } |
| |
| void gatt_sr_copy_prep_cnt_to_cback_cnt(tGATT_TCB& tcb) { |
| for (uint8_t i = 0; i < GATT_MAX_APPS; i++) { |
| if (tcb.prep_cnt[i]) { |
| tcb.sr_cmd.cback_cnt[i] = 1; |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_sr_is_cback_cnt_zero |
| * |
| * Description The function searches all LCB with macthing bd address |
| * |
| * Returns True if thetotal application callback count is zero |
| * |
| ******************************************************************************/ |
| bool gatt_sr_is_cback_cnt_zero(tGATT_TCB& tcb) { |
| for (uint8_t i = 0; i < GATT_MAX_APPS; i++) { |
| if (tcb.sr_cmd.cback_cnt[i]) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_sr_is_prep_cnt_zero |
| * |
| * Description Check the prepare write request count is zero or not |
| * |
| * Returns True no prepare write request |
| * |
| ******************************************************************************/ |
| bool gatt_sr_is_prep_cnt_zero(tGATT_TCB& tcb) { |
| for (uint8_t i = 0; i < GATT_MAX_APPS; i++) { |
| if (tcb.prep_cnt[i]) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_sr_reset_cback_cnt |
| * |
| * Description Reset the application callback count to zero |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void gatt_sr_reset_cback_cnt(tGATT_TCB& tcb) { |
| for (uint8_t i = 0; i < GATT_MAX_APPS; i++) { |
| tcb.sr_cmd.cback_cnt[i] = 0; |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_sr_reset_prep_cnt |
| * |
| * Description Reset the prep write count to zero |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void gatt_sr_reset_prep_cnt(tGATT_TCB& tcb) { |
| for (uint8_t i = 0; i < GATT_MAX_APPS; i++) { |
| tcb.prep_cnt[i] = 0; |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_sr_update_cback_cnt |
| * |
| * Description Update the teh applicaiton callback count |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void gatt_sr_update_cback_cnt(tGATT_TCB& tcb, tGATT_IF gatt_if, bool is_inc, |
| bool is_reset_first) { |
| uint8_t idx = ((uint8_t)gatt_if) - 1; |
| |
| if (is_reset_first) { |
| gatt_sr_reset_cback_cnt(tcb); |
| } |
| if (is_inc) { |
| tcb.sr_cmd.cback_cnt[idx]++; |
| } else { |
| if (tcb.sr_cmd.cback_cnt[idx]) { |
| tcb.sr_cmd.cback_cnt[idx]--; |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_sr_update_prep_cnt |
| * |
| * Description Update the teh prepare write request count |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void gatt_sr_update_prep_cnt(tGATT_TCB& tcb, tGATT_IF gatt_if, bool is_inc, |
| bool is_reset_first) { |
| uint8_t idx = ((uint8_t)gatt_if) - 1; |
| |
| VLOG(1) << StringPrintf( |
| "%s tcb idx=%d gatt_if=%d is_inc=%d is_reset_first=%d", __func__, |
| tcb.tcb_idx, gatt_if, is_inc, is_reset_first); |
| |
| if (is_reset_first) { |
| gatt_sr_reset_prep_cnt(tcb); |
| } |
| if (is_inc) { |
| tcb.prep_cnt[idx]++; |
| } else { |
| if (tcb.prep_cnt[idx]) { |
| tcb.prep_cnt[idx]--; |
| } |
| } |
| } |
| /******************************************************************************* |
| * |
| * Function gatt_cancel_open |
| * |
| * Description Cancel open request |
| * |
| * Returns Boolean |
| * |
| ******************************************************************************/ |
| bool gatt_cancel_open(tGATT_IF gatt_if, const RawAddress& bda) { |
| tGATT_TCB* p_tcb = NULL; |
| bool status = true; |
| |
| p_tcb = gatt_find_tcb_by_addr(bda, BT_TRANSPORT_LE); |
| |
| if (p_tcb) { |
| if (gatt_get_ch_state(p_tcb) == GATT_CH_OPEN) { |
| LOG(ERROR) << __func__ << ": link connected Too late to cancel"; |
| status = false; |
| } else { |
| gatt_update_app_use_link_flag(gatt_if, p_tcb, false, false); |
| if (p_tcb->app_hold_link.empty()) { |
| gatt_disconnect(p_tcb); |
| } |
| } |
| } |
| |
| return status; |
| } |
| |
| /** Enqueue this command */ |
| void gatt_cmd_enq(tGATT_TCB& tcb, tGATT_CLCB* p_clcb, bool to_send, |
| uint8_t op_code, BT_HDR* p_buf) { |
| tGATT_CMD_Q cmd; |
| cmd.to_send = to_send; /* waiting to be sent */ |
| cmd.op_code = op_code; |
| cmd.p_cmd = p_buf; |
| cmd.p_clcb = p_clcb; |
| |
| if (!to_send) { |
| // TODO: WTF why do we clear the queue here ?! |
| tcb.cl_cmd_q = std::queue<tGATT_CMD_Q>(); |
| } |
| |
| tcb.cl_cmd_q.push(cmd); |
| } |
| |
| /** dequeue the command in the client CCB command queue */ |
| tGATT_CLCB* gatt_cmd_dequeue(tGATT_TCB& tcb, uint8_t* p_op_code) { |
| if (tcb.cl_cmd_q.empty()) return nullptr; |
| |
| tGATT_CMD_Q cmd = tcb.cl_cmd_q.front(); |
| tGATT_CLCB* p_clcb = cmd.p_clcb; |
| *p_op_code = cmd.op_code; |
| tcb.cl_cmd_q.pop(); |
| |
| return p_clcb; |
| } |
| |
| /** Send out the ATT message for write */ |
| uint8_t gatt_send_write_msg(tGATT_TCB& tcb, tGATT_CLCB* p_clcb, uint8_t op_code, |
| uint16_t handle, uint16_t len, uint16_t offset, |
| uint8_t* p_data) { |
| tGATT_CL_MSG msg; |
| msg.attr_value.handle = handle; |
| msg.attr_value.len = len; |
| msg.attr_value.offset = offset; |
| memcpy(msg.attr_value.value, p_data, len); |
| |
| /* write by handle */ |
| return attp_send_cl_msg(tcb, p_clcb, op_code, &msg); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_end_operation |
| * |
| * Description This function ends a discovery, send callback and finalize |
| * some control value. |
| * |
| * Returns 16 bits uuid. |
| * |
| ******************************************************************************/ |
| void gatt_end_operation(tGATT_CLCB* p_clcb, tGATT_STATUS status, void* p_data) { |
| tGATT_CL_COMPLETE cb_data; |
| tGATT_CMPL_CBACK* p_cmpl_cb = |
| (p_clcb->p_reg) ? p_clcb->p_reg->app_cb.p_cmpl_cb : NULL; |
| uint8_t op = p_clcb->operation, disc_type = GATT_DISC_MAX; |
| tGATT_DISC_CMPL_CB* p_disc_cmpl_cb = |
| (p_clcb->p_reg) ? p_clcb->p_reg->app_cb.p_disc_cmpl_cb : NULL; |
| uint16_t conn_id; |
| uint8_t operation; |
| |
| VLOG(1) << __func__ << StringPrintf(" status=%d op=%d subtype=%d", status, |
| p_clcb->operation, p_clcb->op_subtype); |
| memset(&cb_data.att_value, 0, sizeof(tGATT_VALUE)); |
| |
| if (p_cmpl_cb != NULL && p_clcb->operation != 0) { |
| if (p_clcb->operation == GATTC_OPTYPE_READ) { |
| cb_data.att_value.handle = p_clcb->s_handle; |
| cb_data.att_value.len = p_clcb->counter; |
| |
| if (p_data && p_clcb->counter) |
| memcpy(cb_data.att_value.value, p_data, cb_data.att_value.len); |
| } |
| |
| if (p_clcb->operation == GATTC_OPTYPE_WRITE) { |
| memset(&cb_data.att_value, 0, sizeof(tGATT_VALUE)); |
| cb_data.handle = cb_data.att_value.handle = p_clcb->s_handle; |
| if (p_clcb->op_subtype == GATT_WRITE_PREPARE) { |
| if (p_data) { |
| cb_data.att_value = *((tGATT_VALUE*)p_data); |
| } else { |
| VLOG(1) << "Rcv Prepare write rsp but no data"; |
| } |
| } |
| } |
| |
| if (p_clcb->operation == GATTC_OPTYPE_CONFIG) |
| cb_data.mtu = p_clcb->p_tcb->payload_size; |
| |
| if (p_clcb->operation == GATTC_OPTYPE_DISCOVERY) { |
| disc_type = p_clcb->op_subtype; |
| } |
| } |
| |
| osi_free_and_reset((void**)&p_clcb->p_attr_buf); |
| |
| operation = p_clcb->operation; |
| conn_id = p_clcb->conn_id; |
| alarm_cancel(p_clcb->gatt_rsp_timer_ent); |
| |
| gatt_clcb_dealloc(p_clcb); |
| |
| if (p_disc_cmpl_cb && (op == GATTC_OPTYPE_DISCOVERY)) |
| (*p_disc_cmpl_cb)(conn_id, disc_type, status); |
| else if (p_cmpl_cb && op) |
| (*p_cmpl_cb)(conn_id, op, status, &cb_data); |
| else |
| LOG(WARNING) << __func__ |
| << StringPrintf( |
| ": not sent out op=%d p_disc_cmpl_cb:%p p_cmpl_cb:%p", |
| operation, p_disc_cmpl_cb, p_cmpl_cb); |
| } |
| |
| /** This function cleans up the control blocks when L2CAP channel disconnect */ |
| void gatt_cleanup_upon_disc(const RawAddress& bda, uint16_t reason, |
| tBT_TRANSPORT transport) { |
| VLOG(1) << __func__; |
| |
| tGATT_TCB* p_tcb = gatt_find_tcb_by_addr(bda, transport); |
| if (!p_tcb) return; |
| |
| gatt_set_ch_state(p_tcb, GATT_CH_CLOSE); |
| for (uint8_t i = 0; i < GATT_CL_MAX_LCB; i++) { |
| tGATT_CLCB* p_clcb = &gatt_cb.clcb[i]; |
| if (!p_clcb->in_use || p_clcb->p_tcb != p_tcb) continue; |
| |
| alarm_cancel(p_clcb->gatt_rsp_timer_ent); |
| VLOG(1) << "found p_clcb conn_id=" << +p_clcb->conn_id; |
| if (p_clcb->operation == GATTC_OPTYPE_NONE) { |
| gatt_clcb_dealloc(p_clcb); |
| continue; |
| } |
| |
| gatt_end_operation(p_clcb, GATT_ERROR, NULL); |
| } |
| |
| alarm_free(p_tcb->ind_ack_timer); |
| p_tcb->ind_ack_timer = NULL; |
| alarm_free(p_tcb->conf_timer); |
| p_tcb->conf_timer = NULL; |
| gatt_free_pending_ind(p_tcb); |
| fixed_queue_free(p_tcb->sr_cmd.multi_rsp_q, NULL); |
| p_tcb->sr_cmd.multi_rsp_q = NULL; |
| |
| for (uint8_t i = 0; i < GATT_MAX_APPS; i++) { |
| tGATT_REG* p_reg = &gatt_cb.cl_rcb[i]; |
| if (p_reg->in_use && p_reg->app_cb.p_conn_cb) { |
| uint16_t conn_id = GATT_CREATE_CONN_ID(p_tcb->tcb_idx, p_reg->gatt_if); |
| VLOG(1) << StringPrintf("found p_reg tcb_idx=%d gatt_if=%d conn_id=0x%x", |
| p_tcb->tcb_idx, p_reg->gatt_if, conn_id); |
| (*p_reg->app_cb.p_conn_cb)(p_reg->gatt_if, bda, conn_id, false, reason, |
| transport); |
| } |
| } |
| |
| *p_tcb = tGATT_TCB(); |
| VLOG(1) << __func__ << ": exit"; |
| } |
| /******************************************************************************* |
| * |
| * Function gatt_dbg_req_op_name |
| * |
| * Description Get op code description name, for debug information. |
| * |
| * Returns uint8_t *: name of the operation. |
| * |
| ******************************************************************************/ |
| uint8_t* gatt_dbg_op_name(uint8_t op_code) { |
| uint8_t pseduo_op_code_idx = op_code & (~GATT_WRITE_CMD_MASK); |
| |
| if (op_code == GATT_CMD_WRITE) { |
| pseduo_op_code_idx = 0x14; /* just an index to op_code_name */ |
| } |
| |
| if (op_code == GATT_SIGN_CMD_WRITE) { |
| pseduo_op_code_idx = 0x15; /* just an index to op_code_name */ |
| } |
| |
| if (pseduo_op_code_idx <= GATT_OP_CODE_MAX) |
| return (uint8_t*)op_code_name[pseduo_op_code_idx]; |
| else |
| return (uint8_t*)"Op Code Exceed Max"; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_dbg_display_uuid |
| * |
| * Description Disaplay the UUID |
| * |
| * Returns None |
| * |
| ******************************************************************************/ |
| void gatt_dbg_display_uuid(tBT_UUID bt_uuid) { |
| char str_buf[50]; |
| |
| if (bt_uuid.len == LEN_UUID_16) { |
| snprintf(str_buf, sizeof(str_buf), "0x%04x", bt_uuid.uu.uuid16); |
| } else if (bt_uuid.len == LEN_UUID_32) { |
| snprintf(str_buf, sizeof(str_buf), "0x%08x", |
| (unsigned int)bt_uuid.uu.uuid32); |
| } else if (bt_uuid.len == LEN_UUID_128) { |
| int x = snprintf( |
| str_buf, sizeof(str_buf), "0x%02x%02x%02x%02x%02x%02x%02x%02x", |
| bt_uuid.uu.uuid128[15], bt_uuid.uu.uuid128[14], bt_uuid.uu.uuid128[13], |
| bt_uuid.uu.uuid128[12], bt_uuid.uu.uuid128[11], bt_uuid.uu.uuid128[10], |
| bt_uuid.uu.uuid128[9], bt_uuid.uu.uuid128[8]); |
| snprintf( |
| &str_buf[x], sizeof(str_buf) - x, "%02x%02x%02x%02x%02x%02x%02x%02x", |
| bt_uuid.uu.uuid128[7], bt_uuid.uu.uuid128[6], bt_uuid.uu.uuid128[5], |
| bt_uuid.uu.uuid128[4], bt_uuid.uu.uuid128[3], bt_uuid.uu.uuid128[2], |
| bt_uuid.uu.uuid128[1], bt_uuid.uu.uuid128[0]); |
| } else |
| strlcpy(str_buf, "Unknown UUID 0", sizeof(str_buf)); |
| |
| VLOG(1) << StringPrintf("UUID=[%s]", str_buf); |
| } |
| |
| /** Returns true if this is one of the background devices for the application, |
| * false otherwise */ |
| bool gatt_is_bg_dev_for_app(tGATT_BG_CONN_DEV* p_dev, tGATT_IF gatt_if) { |
| return p_dev->gatt_if.count(gatt_if); |
| } |
| |
| /** background connection device from the list. Returns pointer to the device |
| * record, or nullptr if not found */ |
| tGATT_BG_CONN_DEV* gatt_find_bg_dev(const RawAddress& remote_bda) { |
| for (tGATT_BG_CONN_DEV& dev : gatt_cb.bgconn_dev) { |
| if (dev.remote_bda == remote_bda) { |
| return &dev; |
| } |
| } |
| return nullptr; |
| } |
| |
| std::list<tGATT_BG_CONN_DEV>::iterator gatt_find_bg_dev_it( |
| const RawAddress& remote_bda) { |
| auto& list = gatt_cb.bgconn_dev; |
| for (auto it = list.begin(); it != list.end(); it++) { |
| if (it->remote_bda == remote_bda) { |
| return it; |
| } |
| } |
| return list.end(); |
| } |
| |
| /** Add a device from the background connection list. Returns true if device |
| * added to the list, or already in list, false otherwise */ |
| bool gatt_add_bg_dev_list(tGATT_REG* p_reg, const RawAddress& bd_addr) { |
| tGATT_IF gatt_if = p_reg->gatt_if; |
| |
| tGATT_BG_CONN_DEV* p_dev = gatt_find_bg_dev(bd_addr); |
| if (p_dev) { |
| // device already in the whitelist, just add interested app to the list |
| if (!p_dev->gatt_if.insert(gatt_if).second) { |
| LOG(ERROR) << "device already in iniator white list"; |
| } |
| |
| return true; |
| } |
| // the device is not in the whitelist |
| |
| if (!BTM_BleUpdateBgConnDev(true, bd_addr)) return false; |
| |
| gatt_cb.bgconn_dev.emplace_back(); |
| tGATT_BG_CONN_DEV& dev = gatt_cb.bgconn_dev.back(); |
| dev.remote_bda = bd_addr; |
| dev.gatt_if.insert(gatt_if); |
| return true; |
| } |
| |
| /** Remove the application interface for the specified background device */ |
| bool gatt_remove_bg_dev_for_app(tGATT_IF gatt_if, const RawAddress& bd_addr) { |
| tGATT_TCB* p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE); |
| bool status; |
| |
| if (p_tcb) gatt_update_app_use_link_flag(gatt_if, p_tcb, false, false); |
| status = gatt_update_auto_connect_dev(gatt_if, false, bd_addr); |
| return status; |
| } |
| |
| /** Removes all registrations for background connection for given device. |
| * Returns true if anything was removed, false otherwise */ |
| uint8_t gatt_clear_bg_dev_for_addr(const RawAddress& bd_addr) { |
| auto dev_it = gatt_find_bg_dev_it(bd_addr); |
| if (dev_it == gatt_cb.bgconn_dev.end()) return false; |
| |
| CHECK(BTM_BleUpdateBgConnDev(false, dev_it->remote_bda)); |
| gatt_cb.bgconn_dev.erase(dev_it); |
| return true; |
| } |
| |
| /** Remove device from the background connection device list or listening to |
| * advertising list. Returns true if device was on the list and was succesfully |
| * removed */ |
| bool gatt_remove_bg_dev_from_list(tGATT_REG* p_reg, const RawAddress& bd_addr) { |
| tGATT_IF gatt_if = p_reg->gatt_if; |
| auto dev_it = gatt_find_bg_dev_it(bd_addr); |
| if (dev_it == gatt_cb.bgconn_dev.end()) return false; |
| |
| if (!dev_it->gatt_if.erase(gatt_if)) return false; |
| |
| if (!dev_it->gatt_if.empty()) return true; |
| |
| // no more apps interested - remove from whitelist and delete record |
| CHECK(BTM_BleUpdateBgConnDev(false, dev_it->remote_bda)); |
| gatt_cb.bgconn_dev.erase(dev_it); |
| return true; |
| } |
| /** deregister all related back ground connetion device. */ |
| void gatt_deregister_bgdev_list(tGATT_IF gatt_if) { |
| auto it = gatt_cb.bgconn_dev.begin(); |
| auto end = gatt_cb.bgconn_dev.end(); |
| /* update the BG conn device list */ |
| while (it != end) { |
| it->gatt_if.erase(gatt_if); |
| if (it->gatt_if.size()) { |
| it++; |
| continue; |
| } |
| |
| BTM_BleUpdateBgConnDev(false, it->remote_bda); |
| it = gatt_cb.bgconn_dev.erase(it); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function gatt_reset_bgdev_list |
| * |
| * Description reset bg device list |
| * |
| * Returns pointer to the device record |
| * |
| ******************************************************************************/ |
| void gatt_reset_bgdev_list(void) { gatt_cb.bgconn_dev.clear(); } |
| /******************************************************************************* |
| * |
| * Function gatt_update_auto_connect_dev |
| * |
| * Description This function add or remove a device for background |
| * connection procedure. |
| * |
| * Parameters gatt_if: Application ID. |
| * add: add peer device |
| * bd_addr: peer device address. |
| * |
| * Returns true if connection started; false otherwise. |
| * |
| ******************************************************************************/ |
| bool gatt_update_auto_connect_dev(tGATT_IF gatt_if, bool add, |
| const RawAddress& bd_addr) { |
| bool ret = false; |
| tGATT_REG* p_reg; |
| tGATT_TCB* p_tcb = gatt_find_tcb_by_addr(bd_addr, BT_TRANSPORT_LE); |
| |
| VLOG(1) << __func__; |
| /* Make sure app is registered */ |
| p_reg = gatt_get_regcb(gatt_if); |
| if (p_reg == NULL) { |
| LOG(ERROR) << __func__ << " gatt_if is not registered " << +gatt_if; |
| return false; |
| } |
| |
| if (add) { |
| ret = gatt_add_bg_dev_list(p_reg, bd_addr); |
| |
| if (ret && p_tcb != NULL) { |
| /* if a connected device, update the link holding number */ |
| gatt_update_app_use_link_flag(gatt_if, p_tcb, true, true); |
| } |
| } else { |
| ret = gatt_remove_bg_dev_from_list(p_reg, bd_addr); |
| } |
| return ret; |
| } |