btif_config.cc revision aa3be1a696b9ae1142fe9f358ad5f97e99da7892
15738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project/****************************************************************************** 25738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * 3b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati * Copyright (C) 2014 Google, Inc. 45738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * 55738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 65738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * you may not use this file except in compliance with the License. 75738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * You may obtain a copy of the License at: 85738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * 95738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 105738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * 115738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 125738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 135738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 145738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * See the License for the specific language governing permissions and 155738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * limitations under the License. 165738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project * 175738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project ******************************************************************************/ 185738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project 19b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati#define LOG_TAG "bt_btif_config" 20b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 21b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati#include <assert.h> 225738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project#include <ctype.h> 23b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati#include <pthread.h> 245738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project#include <stdio.h> 25b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati#include <string.h> 26b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 270f9b91e150e153229235c163861198e23600e636Sharvil Nanavati#include "osi/include/alarm.h" 2856a3be0d6eaa1bc264736e399fb32d3094f0b513Pavlin Radoslavov#include "osi/include/allocator.h" 2995b74f252f534ec757aab1fc08e086e02b2cfe8dSharvil Nanavati#include "btcore/include/bdaddr.h" 305738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project#include "btif_config.h" 31b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati#include "btif_config_transcode.h" 325cd8bff2dd0337cb52bf48f312e3d2d55a8882fbMike J. Chen#include "btif_util.h" 3347d68ee6229ccec3deeaaf694fa86438d97333a4Scott James Remnant#include "osi/include/compat.h" 340f9b91e150e153229235c163861198e23600e636Sharvil Nanavati#include "osi/include/config.h" 3595b74f252f534ec757aab1fc08e086e02b2cfe8dSharvil Nanavati#include "btcore/include/module.h" 360f9b91e150e153229235c163861198e23600e636Sharvil Nanavati#include "osi/include/osi.h" 3744802768c447ab480d4227b3a852a97d923b816dSharvil Nanavati#include "osi/include/log.h" 385738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project 39794f3b5f126fffc3dd1129a710187591348bbf23Chris Manton#include "bt_types.h" 407939ed0c9a50c769e9e648a2d7751e0894b485edzzy 41b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatistatic const char *CONFIG_FILE_PATH = "/data/misc/bluedroid/bt_config.conf"; 42b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatistatic const char *LEGACY_CONFIG_FILE_PATH = "/data/misc/bluedroid/bt_config.xml"; 43b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatistatic const period_ms_t CONFIG_SETTLE_PERIOD_MS = 3000; 447939ed0c9a50c769e9e648a2d7751e0894b485edzzy 45b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatistatic void timer_config_save(void *data); 46335aa36bca8532874c23c1afe5bfc2aff7fc01a5Mike J. Chen 47b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati// TODO(zachoverflow): Move these two functions out, because they are too specific for this file 48b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati// {grumpy-cat/no, monty-python/you-make-me-sad} 49b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatibool btif_get_device_type(const BD_ADDR bd_addr, int *p_device_type) 5086f97eda524568f2d264186844450db5e56dac36Matthew Xie{ 5186f97eda524568f2d264186844450db5e56dac36Matthew Xie if (p_device_type == NULL) 5286f97eda524568f2d264186844450db5e56dac36Matthew Xie return FALSE; 5386f97eda524568f2d264186844450db5e56dac36Matthew Xie 5486f97eda524568f2d264186844450db5e56dac36Matthew Xie bt_bdaddr_t bda; 5586f97eda524568f2d264186844450db5e56dac36Matthew Xie bdcpy(bda.address, bd_addr); 5686f97eda524568f2d264186844450db5e56dac36Matthew Xie 578a6a89faa942aed4f176b0c98402d01c8bdd6aa6Sharvil Nanavati bdstr_t bd_addr_str; 588a6a89faa942aed4f176b0c98402d01c8bdd6aa6Sharvil Nanavati bdaddr_to_string(&bda, bd_addr_str, sizeof(bd_addr_str)); 5986f97eda524568f2d264186844450db5e56dac36Matthew Xie 609d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati if (!btif_config_get_int(bd_addr_str, "DevType", p_device_type)) 6186f97eda524568f2d264186844450db5e56dac36Matthew Xie return FALSE; 6286f97eda524568f2d264186844450db5e56dac36Matthew Xie 6344802768c447ab480d4227b3a852a97d923b816dSharvil Nanavati LOG_DEBUG("%s: Device [%s] type %d", __FUNCTION__, bd_addr_str, *p_device_type); 6486f97eda524568f2d264186844450db5e56dac36Matthew Xie return TRUE; 6586f97eda524568f2d264186844450db5e56dac36Matthew Xie} 6686f97eda524568f2d264186844450db5e56dac36Matthew Xie 67b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatibool btif_get_address_type(const BD_ADDR bd_addr, int *p_addr_type) 6886f97eda524568f2d264186844450db5e56dac36Matthew Xie{ 6986f97eda524568f2d264186844450db5e56dac36Matthew Xie if (p_addr_type == NULL) 7086f97eda524568f2d264186844450db5e56dac36Matthew Xie return FALSE; 7186f97eda524568f2d264186844450db5e56dac36Matthew Xie 7286f97eda524568f2d264186844450db5e56dac36Matthew Xie bt_bdaddr_t bda; 7386f97eda524568f2d264186844450db5e56dac36Matthew Xie bdcpy(bda.address, bd_addr); 7486f97eda524568f2d264186844450db5e56dac36Matthew Xie 758a6a89faa942aed4f176b0c98402d01c8bdd6aa6Sharvil Nanavati bdstr_t bd_addr_str; 768a6a89faa942aed4f176b0c98402d01c8bdd6aa6Sharvil Nanavati bdaddr_to_string(&bda, bd_addr_str, sizeof(bd_addr_str)); 7786f97eda524568f2d264186844450db5e56dac36Matthew Xie 789d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati if (!btif_config_get_int(bd_addr_str, "AddrType", p_addr_type)) 7986f97eda524568f2d264186844450db5e56dac36Matthew Xie return FALSE; 8086f97eda524568f2d264186844450db5e56dac36Matthew Xie 8144802768c447ab480d4227b3a852a97d923b816dSharvil Nanavati LOG_DEBUG("%s: Device [%s] address type %d", __FUNCTION__, bd_addr_str, *p_addr_type); 8286f97eda524568f2d264186844450db5e56dac36Matthew Xie return TRUE; 8386f97eda524568f2d264186844450db5e56dac36Matthew Xie} 8486f97eda524568f2d264186844450db5e56dac36Matthew Xie 85b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatistatic pthread_mutex_t lock; // protects operations on |config|. 86b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatistatic config_t *config; 87b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatistatic alarm_t *alarm_timer; 88b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 899b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson// Module lifecycle functions 909b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson 919b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnsonstatic future_t *init(void) { 92b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_init(&lock, NULL); 93b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config = config_new(CONFIG_FILE_PATH); 94b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (!config) { 9544802768c447ab480d4227b3a852a97d923b816dSharvil Nanavati LOG_WARN("%s unable to load config file; attempting to transcode legacy file.", __func__); 96b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config = btif_config_transcode(LEGACY_CONFIG_FILE_PATH); 97b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (!config) { 9844802768c447ab480d4227b3a852a97d923b816dSharvil Nanavati LOG_WARN("%s unable to transcode legacy file, starting unconfigured.", __func__); 99b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config = config_new_empty(); 100b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (!config) { 10144802768c447ab480d4227b3a852a97d923b816dSharvil Nanavati LOG_ERROR("%s unable to allocate a config object.", __func__); 102b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati goto error; 103b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati } 1045738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project } 105b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 106b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (config_save(config, CONFIG_FILE_PATH)) 107b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati unlink(LEGACY_CONFIG_FILE_PATH); 108b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati } 109b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 110b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati // TODO(sharvil): use a non-wake alarm for this once we have 1119b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson // API support for it. There's no need to wake the system to 112b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati // write back to disk. 113b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati alarm_timer = alarm_new(); 114b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (!alarm_timer) { 11544802768c447ab480d4227b3a852a97d923b816dSharvil Nanavati LOG_ERROR("%s unable to create alarm.", __func__); 116b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati goto error; 117b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati } 118b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 1199b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson return future_new_immediate(FUTURE_SUCCESS); 120b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 121b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatierror:; 122b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati alarm_free(alarm_timer); 123b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config_free(config); 124b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_destroy(&lock); 125b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati alarm_timer = NULL; 126b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config = NULL; 1279b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson return future_new_immediate(FUTURE_FAIL); 1289b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson} 1299b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson 1309b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnsonstatic future_t *shut_down(void) { 1319b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson btif_config_flush(); 1329b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson return future_new_immediate(FUTURE_SUCCESS); 1335738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 134b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 1359b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnsonstatic future_t *clean_up(void) { 136b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati btif_config_flush(); 137b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 138b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati alarm_free(alarm_timer); 139b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config_free(config); 140b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_destroy(&lock); 141b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati alarm_timer = NULL; 142b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config = NULL; 1439b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson return future_new_immediate(FUTURE_SUCCESS); 1445738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 145b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 1469b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnsonconst module_t btif_config_module = { 1479b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson .name = BTIF_CONFIG_MODULE, 1489b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson .init = init, 1499b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson .start_up = NULL, 1509b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson .shut_down = shut_down, 1519b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson .clean_up = clean_up, 1529b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson .dependencies = { 1539b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson NULL 1549b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson } 1559b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson}; 1569b0fbce37260e69cb116be1cdcbceb1f43bf9346Zach Johnson 1579d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavatibool btif_config_has_section(const char *section) { 158b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 1599d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati assert(section != NULL); 160b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 161b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 1629d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati bool ret = config_has_section(config, section); 163b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 164b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 165b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return ret; 1667939ed0c9a50c769e9e648a2d7751e0894b485edzzy} 167b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 1689d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavatibool btif_config_exist(const char *section, const char *key) { 169b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 1709d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati assert(section != NULL); 171b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(key != NULL); 172b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 173b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 1749d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati bool ret = config_has_key(config, section, key); 175b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 176b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 177b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return ret; 1785738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 179b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 1809d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavatibool btif_config_get_int(const char *section, const char *key, int *value) { 181b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 1829d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati assert(section != NULL); 183b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(key != NULL); 184b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(value != NULL); 185b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 186b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 1879d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati bool ret = config_has_key(config, section, key); 188b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (ret) 1899d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati *value = config_get_int(config, section, key, *value); 190b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 191b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 192b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return ret; 1937939ed0c9a50c769e9e648a2d7751e0894b485edzzy} 194b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 1959d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavatibool btif_config_set_int(const char *section, const char *key, int value) { 196b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 1979d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati assert(section != NULL); 198b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(key != NULL); 199b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 200b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 2019d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati config_set_int(config, section, key, value); 202b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 203b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 204b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return true; 2057939ed0c9a50c769e9e648a2d7751e0894b485edzzy} 2067939ed0c9a50c769e9e648a2d7751e0894b485edzzy 207ce0bab413c2c1a0a5e9f4a82a6b2833685333bceSharvil Nanavatibool btif_config_get_str(const char *section, const char *key, char *value, int *size_bytes) { 208b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 2099d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati assert(section != NULL); 210b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(key != NULL); 211b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(value != NULL); 212ce0bab413c2c1a0a5e9f4a82a6b2833685333bceSharvil Nanavati assert(size_bytes != NULL); 213b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 214b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 2159d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati const char *stored_value = config_get_string(config, section, key, NULL); 216b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 217b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 218b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (!stored_value) 219b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return false; 220b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 221ce0bab413c2c1a0a5e9f4a82a6b2833685333bceSharvil Nanavati strlcpy(value, stored_value, *size_bytes); 222ce0bab413c2c1a0a5e9f4a82a6b2833685333bceSharvil Nanavati *size_bytes = strlen(value) + 1; 223b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 224b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return true; 2257939ed0c9a50c769e9e648a2d7751e0894b485edzzy} 226b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 2279d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavatibool btif_config_set_str(const char *section, const char *key, const char *value) { 228b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 2299d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati assert(section != NULL); 230b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(key != NULL); 231b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(value != NULL); 232b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 233b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 2349d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati config_set_string(config, section, key, value); 235b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 236b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 237b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return true; 2387939ed0c9a50c769e9e648a2d7751e0894b485edzzy} 239b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 2409d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavatibool btif_config_get_bin(const char *section, const char *key, uint8_t *value, size_t *length) { 241b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 2429d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati assert(section != NULL); 243b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(key != NULL); 244b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(value != NULL); 245b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(length != NULL); 246b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 247b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 2489d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati const char *value_str = config_get_string(config, section, key, NULL); 249b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 250b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 251b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (!value_str) 252b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return false; 253b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 254b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati size_t value_len = strlen(value_str); 255b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if ((value_len % 2) != 0 || *length < (value_len / 2)) 256b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return false; 257b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 258b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati for (size_t i = 0; i < value_len; ++i) 259b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (!isxdigit(value_str[i])) 260b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return false; 261b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 262b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati for (*length = 0; *value_str; value_str += 2, *length += 1) 263b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati sscanf(value_str, "%02hhx", &value[*length]); 264b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 265b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return true; 2667939ed0c9a50c769e9e648a2d7751e0894b485edzzy} 2677939ed0c9a50c769e9e648a2d7751e0894b485edzzy 2689d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavatisize_t btif_config_get_bin_length(const char *section, const char *key) { 269b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 2709d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati assert(section != NULL); 271b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(key != NULL); 272b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 273b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 2749d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati const char *value_str = config_get_string(config, section, key, NULL); 275b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 276b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 277b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (!value_str) 278b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return 0; 279b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 280b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati size_t value_len = strlen(value_str); 281b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return ((value_len % 2) != 0) ? 0 : (value_len / 2); 2825738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 2835738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project 2849d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavatibool btif_config_set_bin(const char *section, const char *key, const uint8_t *value, size_t length) { 285444a8da807abaf5f9e813ce70c56a79160495fb3Satya Calloji const char *lookup = "0123456789abcdef"; 286b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 287b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 2889d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati assert(section != NULL); 289b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(key != NULL); 290444a8da807abaf5f9e813ce70c56a79160495fb3Satya Calloji 291444a8da807abaf5f9e813ce70c56a79160495fb3Satya Calloji if (length > 0) 292444a8da807abaf5f9e813ce70c56a79160495fb3Satya Calloji assert(value != NULL); 293b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 29456a3be0d6eaa1bc264736e399fb32d3094f0b513Pavlin Radoslavov char *str = (char *)osi_calloc(length * 2 + 1); 295b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (!str) 296b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return false; 297b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 298b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati for (size_t i = 0; i < length; ++i) { 299b2f0447afd5db6579e380439ad596519276e91d1Zach Johnson str[(i * 2) + 0] = lookup[(value[i] >> 4) & 0x0F]; 300444a8da807abaf5f9e813ce70c56a79160495fb3Satya Calloji str[(i * 2) + 1] = lookup[value[i] & 0x0F]; 301b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati } 302b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 303b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 3049d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati config_set_string(config, section, key, str); 305b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 306b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 30756a3be0d6eaa1bc264736e399fb32d3094f0b513Pavlin Radoslavov osi_free(str); 308b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return true; 3095738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 310b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 311b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavaticonst btif_config_section_iter_t *btif_config_section_begin(void) { 312b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 313b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return (const btif_config_section_iter_t *)config_section_begin(config); 3145738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 315b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 316b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavaticonst btif_config_section_iter_t *btif_config_section_end(void) { 317b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 318b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return (const btif_config_section_iter_t *)config_section_end(config); 319689d66b6559dcb3a0ad7f6cc33b6129e50910253The Android Open Source Project} 320b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 321b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavaticonst btif_config_section_iter_t *btif_config_section_next(const btif_config_section_iter_t *section) { 322b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 323b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(section != NULL); 324b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return (const btif_config_section_iter_t *)config_section_next((const config_section_node_t *)section); 3255738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 326b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 327b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavaticonst char *btif_config_section_name(const btif_config_section_iter_t *section) { 328b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 329b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(section != NULL); 330b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return config_section_name((const config_section_node_t *)section); 3315738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 332b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 3339d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavatibool btif_config_remove(const char *section, const char *key) { 334b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 3359d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati assert(section != NULL); 336b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(key != NULL); 337b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 338b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 3399d52f88bfc07556cb01ab3055f5b1242c9b467aaSharvil Nanavati bool ret = config_remove_key(config, section, key); 340b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 341b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 342b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati return ret; 3435738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 344b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 345b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavativoid btif_config_save(void) { 346b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(alarm_timer != NULL); 347b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 348b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 349b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati alarm_set(alarm_timer, CONFIG_SETTLE_PERIOD_MS, timer_config_save, NULL); 3505738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 3515738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project 352b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavativoid btif_config_flush(void) { 353b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 354b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(alarm_timer != NULL); 3555738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project 356b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati alarm_cancel(alarm_timer); 3575738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project 358b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 359b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config_save(config, CONFIG_FILE_PATH); 360b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 3615738f83aeb59361a0a2eda2460113f6dc919427The Android Open Source Project} 36286f97eda524568f2d264186844450db5e56dac36Matthew Xie 363aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panickerint btif_config_clear(void){ 364aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker assert(config != NULL); 365aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker assert(alarm_timer != NULL); 366aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker 367aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker alarm_cancel(alarm_timer); 368aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker 369aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker pthread_mutex_lock(&lock); 370aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker config_free(config); 371aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker 372aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker config = config_new_empty(); 373aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker if (config == NULL) { 374aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker pthread_mutex_unlock(&lock); 375aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker return false; 376aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker } 377aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker 378aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker int ret = config_save(config, CONFIG_FILE_PATH); 379aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker pthread_mutex_unlock(&lock); 380aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker return ret; 381aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker} 382aa3be1a696b9ae1142fe9f358ad5f97e99da7892Ajay Panicker 383b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavatistatic void timer_config_save(UNUSED_ATTR void *data) { 384b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(config != NULL); 385b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati assert(alarm_timer != NULL); 386b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 387b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati // Garbage collection process: the config file accumulates 388b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati // cached information about remote devices during regular 389b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati // inquiry scans. We remove some of these junk entries 390b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati // so the file doesn't grow indefinitely. We have to take care 391b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati // to make sure we don't remove information about bonded 392b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati // devices (hence the check for link keys). 393b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati static const size_t CACHE_MAX = 256; 394b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati const char *keys[CACHE_MAX]; 395b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati size_t num_keys = 0; 396b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati size_t total_candidates = 0; 397b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 398b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_lock(&lock); 399b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati for (const config_section_node_t *snode = config_section_begin(config); snode != config_section_end(config); snode = config_section_next(snode)) { 400b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati const char *section = config_section_name(snode); 4018a6a89faa942aed4f176b0c98402d01c8bdd6aa6Sharvil Nanavati if (!string_is_bdaddr(section)) 402b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati continue; 40386f97eda524568f2d264186844450db5e56dac36Matthew Xie 404b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (config_has_key(config, section, "LinkKey") || 405b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config_has_key(config, section, "LE_KEY_PENC") || 406b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config_has_key(config, section, "LE_KEY_PID") || 407b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config_has_key(config, section, "LE_KEY_PCSRK") || 408b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config_has_key(config, section, "LE_KEY_LENC") || 409b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config_has_key(config, section, "LE_KEY_LCSRK")) 410b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati continue; 411b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 412b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (num_keys < CACHE_MAX) 413b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati keys[num_keys++] = section; 414b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 415b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati ++total_candidates; 416b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati } 417b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 418b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati if (total_candidates > CACHE_MAX * 2) 419b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati while (num_keys > 0) 420b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config_remove_section(config, keys[--num_keys]); 421b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati 422b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati config_save(config, CONFIG_FILE_PATH); 423b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati pthread_mutex_unlock(&lock); 424b95c4ef4ac9e86953050a7ae6b3b4260df935713Sharvil Nanavati} 425