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services/URIBeaconConfigService.h@310:0b79de98eceb, 2015-03-09 (annotated)

Committer:
rgrover1
Date:
Mon Mar 09 16:23:55 2015 +0000
Revision:
310:0b79de98eceb
Parent:
309:bc91f7ba346d
Child:
311:11417b970b12
Synchronized with git rev 517d7c9e

Author: Rohit Grover

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Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 171:6092e61690dc 1 /* mbed Microcontroller Library
rgrover1 171:6092e61690dc 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 171:6092e61690dc 3 *
rgrover1 171:6092e61690dc 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 171:6092e61690dc 5 * you may not use this file except in compliance with the License.
rgrover1 171:6092e61690dc 6 * You may obtain a copy of the License at
rgrover1 171:6092e61690dc 7 *
rgrover1 171:6092e61690dc 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 171:6092e61690dc 9 *
rgrover1 171:6092e61690dc 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 171:6092e61690dc 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 171:6092e61690dc 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 171:6092e61690dc 13 * See the License for the specific language governing permissions and
rgrover1 171:6092e61690dc 14 * limitations under the License.
rgrover1 171:6092e61690dc 15 */
rgrover1 171:6092e61690dc 16
rgrover1 287:cca148e535b1 17 #ifndef SERVICES_URIBEACONCONFIGSERVICE_H_
rgrover1 287:cca148e535b1 18 #define SERVICES_URIBEACONCONFIGSERVICE_H_
rgrover1 171:6092e61690dc 19
rgrover1 287:cca148e535b1 20 #define UUID_URI_BEACON(FIRST, SECOND) { \
rgrover1 225:f6cbfd817d16 21 0xee, 0x0c, FIRST, SECOND, 0x87, 0x86, 0x40, 0xba, \
rgrover1 225:f6cbfd817d16 22 0xab, 0x96, 0x99, 0xb9, 0x1a, 0xc9, 0x81, 0xd8, \
rgrover1 171:6092e61690dc 23 }
rgrover1 287:cca148e535b1 24
rgrover1 287:cca148e535b1 25 static const uint8_t UUID_URI_BEACON_SERVICE[] = UUID_URI_BEACON(0x20, 0x80);
rgrover1 287:cca148e535b1 26 static const uint8_t UUID_LOCK_STATE_CHAR[] = UUID_URI_BEACON(0x20, 0x81);
rgrover1 287:cca148e535b1 27 static const uint8_t UUID_LOCK_CHAR[] = UUID_URI_BEACON(0x20, 0x82);
rgrover1 287:cca148e535b1 28 static const uint8_t UUID_UNLOCK_CHAR[] = UUID_URI_BEACON(0x20, 0x83);
rgrover1 287:cca148e535b1 29 static const uint8_t UUID_URI_DATA_CHAR[] = UUID_URI_BEACON(0x20, 0x84);
rgrover1 287:cca148e535b1 30 static const uint8_t UUID_FLAGS_CHAR[] = UUID_URI_BEACON(0x20, 0x85);
rgrover1 287:cca148e535b1 31 static const uint8_t UUID_ADV_POWER_LEVELS_CHAR[] = UUID_URI_BEACON(0x20, 0x86);
rgrover1 287:cca148e535b1 32 static const uint8_t UUID_TX_POWER_MODE_CHAR[] = UUID_URI_BEACON(0x20, 0x87);
rgrover1 287:cca148e535b1 33 static const uint8_t UUID_BEACON_PERIOD_CHAR[] = UUID_URI_BEACON(0x20, 0x88);
rgrover1 287:cca148e535b1 34 static const uint8_t UUID_RESET_CHAR[] = UUID_URI_BEACON(0x20, 0x89);
rgrover1 287:cca148e535b1 35 static const uint8_t BEACON_UUID[] = {0xD8, 0xFE};
rgrover1 171:6092e61690dc 36
mbedAustin 231:1c4a4fd961a5 37 /**
mbedAustin 231:1c4a4fd961a5 38 * @class URIBeaconConfigService
rgrover1 242:0e9201b67e2f 39 * @brief UriBeacon Configuration Service. Can be used to set URL, adjust power levels, and set flags.
rgrover1 287:cca148e535b1 40 * See http://uribeacon.org
rgrover1 287:cca148e535b1 41 *
mbedAustin 231:1c4a4fd961a5 42 */
rgrover1 207:e88130dc254c 43 class URIBeaconConfigService {
rgrover1 287:cca148e535b1 44 public:
mbedAustin 231:1c4a4fd961a5 45 /**
rgrover1 242:0e9201b67e2f 46 * @brief Transmission Power Modes for UriBeacon
rgrover1 242:0e9201b67e2f 47 */
rgrover1 287:cca148e535b1 48 static const uint8_t TX_POWER_MODE_LOWEST = 0; /*!< Lowest TX power mode */
rgrover1 287:cca148e535b1 49 static const uint8_t TX_POWER_MODE_LOW = 1; /*!< Low TX power mode */
rgrover1 287:cca148e535b1 50 static const uint8_t TX_POWER_MODE_MEDIUM = 2; /*!< Medium TX power mode */
rgrover1 287:cca148e535b1 51 static const uint8_t TX_POWER_MODE_HIGH = 3; /*!< High TX power mode */
rgrover1 287:cca148e535b1 52 static const unsigned int NUM_POWER_MODES = 4; /*!< Number of Power Modes defined */
rgrover1 287:cca148e535b1 53
rgrover1 309:bc91f7ba346d 54 static const int ADVERTISING_TIMEOUT_SECONDS = 60; // Seconds after power-on that config service is available.
rgrover1 309:bc91f7ba346d 55 static const int ADVERTISING_INTERVAL_MSEC = 1000; // Advertising interval for config service.
rgrover1 309:bc91f7ba346d 56 static const int SERVICE_DATA_MAX = 31; // Maximum size of service data in ADV packets
rgrover1 287:cca148e535b1 57
rgrover1 287:cca148e535b1 58 typedef uint8_t Lock_t[16]; /* 128 bits */
rgrover1 287:cca148e535b1 59 typedef int8_t PowerLevels_t[NUM_POWER_MODES];
rgrover1 287:cca148e535b1 60
rgrover1 287:cca148e535b1 61 static const int URI_DATA_MAX = 18;
rgrover1 287:cca148e535b1 62 typedef uint8_t UriData_t[URI_DATA_MAX];
rgrover1 287:cca148e535b1 63
rgrover1 287:cca148e535b1 64 struct Params_t {
rgrover1 287:cca148e535b1 65 Lock_t lock;
rgrover1 287:cca148e535b1 66 uint8_t uriDataLength;
rgrover1 287:cca148e535b1 67 UriData_t uriData;
rgrover1 287:cca148e535b1 68 uint8_t flags;
rgrover1 310:0b79de98eceb 69 PowerLevels_t advPowerLevels; // Current value of AdvertisedPowerLevels
rgrover1 310:0b79de98eceb 70 uint8_t txPowerMode; // Firmware power levels used with setTxPower()
rgrover1 287:cca148e535b1 71 uint16_t beaconPeriod;
rgrover1 175:4e85f7225f8f 72 };
rgrover1 175:4e85f7225f8f 73
rgrover1 181:bbb6ce1082c3 74 /**
rgrover1 287:cca148e535b1 75 * @param[ref] ble
rgrover1 287:cca148e535b1 76 * BLEDevice object for the underlying controller.
rgrover1 287:cca148e535b1 77 * @param[in/out] paramsIn
rgrover1 287:cca148e535b1 78 * Reference to application-visible beacon state, loaded
rgrover1 287:cca148e535b1 79 * from persistent storage at startup.
rgrover1 287:cca148e535b1 80 * @param[in] resetToDefaultsFlag
rgrover1 287:cca148e535b1 81 * reset params state to the defaults.
rgrover1 287:cca148e535b1 82 * @param[in] defaultUriDataIn
rgrover1 309:bc91f7ba346d 83 * Default un-encoded URI; applies only if the resetToDefaultsFlag is true.
rgrover1 287:cca148e535b1 84 * @param[in] defaultAdvPowerLevelsIn
rgrover1 287:cca148e535b1 85 * Default power-levels array; applies only if the resetToDefaultsFlag is true.
rgrover1 181:bbb6ce1082c3 86 */
rgrover1 287:cca148e535b1 87 URIBeaconConfigService(BLEDevice &bleIn,
rgrover1 287:cca148e535b1 88 Params_t &paramsIn,
rgrover1 287:cca148e535b1 89 bool resetToDefaultsFlag,
rgrover1 309:bc91f7ba346d 90 const char *defaultURIDataIn,
rgrover1 287:cca148e535b1 91 PowerLevels_t &defaultAdvPowerLevelsIn) :
rgrover1 192:3fd3dcf49005 92 ble(bleIn),
rgrover1 287:cca148e535b1 93 params(paramsIn),
rgrover1 309:bc91f7ba346d 94 defaultUriDataLength(),
rgrover1 309:bc91f7ba346d 95 defaultUriData(),
rgrover1 287:cca148e535b1 96 defaultAdvPowerLevels(defaultAdvPowerLevelsIn),
rgrover1 192:3fd3dcf49005 97 initSucceeded(false),
rgrover1 309:bc91f7ba346d 98 resetFlag(),
rgrover1 309:bc91f7ba346d 99 configAdvertisementTimeoutTicker(),
rgrover1 287:cca148e535b1 100 lockedStateChar(UUID_LOCK_STATE_CHAR, &lockedState),
rgrover1 287:cca148e535b1 101 lockChar(UUID_LOCK_CHAR, &params.lock),
rgrover1 300:d9a39f759a6a 102 uriDataChar(UUID_URI_DATA_CHAR, params.uriData, 0, URI_DATA_MAX,
rgrover1 287:cca148e535b1 103 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE),
rgrover1 287:cca148e535b1 104 unlockChar(UUID_UNLOCK_CHAR, &params.lock),
rgrover1 287:cca148e535b1 105 flagsChar(UUID_FLAGS_CHAR, &params.flags),
rgrover1 287:cca148e535b1 106 advPowerLevelsChar(UUID_ADV_POWER_LEVELS_CHAR, &params.advPowerLevels),
rgrover1 287:cca148e535b1 107 txPowerModeChar(UUID_TX_POWER_MODE_CHAR, &params.txPowerMode),
rgrover1 287:cca148e535b1 108 beaconPeriodChar(UUID_BEACON_PERIOD_CHAR, &params.beaconPeriod),
rgrover1 287:cca148e535b1 109 resetChar(UUID_RESET_CHAR, &resetFlag) {
rgrover1 309:bc91f7ba346d 110
rgrover1 309:bc91f7ba346d 111 encodeURI(defaultURIDataIn, defaultUriData, defaultUriDataLength);
rgrover1 309:bc91f7ba346d 112 if (defaultUriDataLength > URI_DATA_MAX) {
rgrover1 192:3fd3dcf49005 113 return;
rgrover1 192:3fd3dcf49005 114 }
rgrover1 192:3fd3dcf49005 115
rgrover1 287:cca148e535b1 116 if (params.uriDataLength > URI_DATA_MAX) {
rgrover1 287:cca148e535b1 117 resetToDefaultsFlag = true;
rgrover1 218:8ae02569fab9 118 }
rgrover1 218:8ae02569fab9 119
rgrover1 287:cca148e535b1 120 lockedState = isLocked();
rgrover1 171:6092e61690dc 121
rgrover1 287:cca148e535b1 122 if (resetToDefaultsFlag) {
rgrover1 287:cca148e535b1 123 resetToDefaults();
rgrover1 287:cca148e535b1 124 } else {
rgrover1 287:cca148e535b1 125 updateCharacteristicValues();
rgrover1 287:cca148e535b1 126 }
rgrover1 274:f540619754bb 127
rgrover1 272:65b9d9c87ed1 128 lockChar.setWriteAuthorizationCallback(this, &URIBeaconConfigService::lockAuthorizationCallback);
rgrover1 272:65b9d9c87ed1 129 unlockChar.setWriteAuthorizationCallback(this, &URIBeaconConfigService::unlockAuthorizationCallback);
rgrover1 250:6862d374e613 130 uriDataChar.setWriteAuthorizationCallback(this, &URIBeaconConfigService::uriDataWriteAuthorizationCallback);
rgrover1 255:cdb7231f83df 131 flagsChar.setWriteAuthorizationCallback(this, &URIBeaconConfigService::flagsAuthorizationCallback);
rgrover1 287:cca148e535b1 132 advPowerLevelsChar.setWriteAuthorizationCallback(this, &URIBeaconConfigService::denyGATTWritesIfLocked);
rgrover1 287:cca148e535b1 133 txPowerModeChar.setWriteAuthorizationCallback(this, &URIBeaconConfigService::denyGATTWritesIfLocked);
rgrover1 250:6862d374e613 134 beaconPeriodChar.setWriteAuthorizationCallback(this, &URIBeaconConfigService::denyGATTWritesIfLocked);
rgrover1 250:6862d374e613 135 resetChar.setWriteAuthorizationCallback(this, &URIBeaconConfigService::denyGATTWritesIfLocked);
rgrover1 250:6862d374e613 136
rgrover1 287:cca148e535b1 137 static GattCharacteristic *charTable[] = {
rgrover1 287:cca148e535b1 138 &lockedStateChar, &lockChar, &unlockChar, &uriDataChar,
rgrover1 287:cca148e535b1 139 &flagsChar, &advPowerLevelsChar, &txPowerModeChar, &beaconPeriodChar, &resetChar
rgrover1 287:cca148e535b1 140 };
rgrover1 182:d16f8c11816b 141
rgrover1 287:cca148e535b1 142 GattService configService(UUID_URI_BEACON_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
rgrover1 287:cca148e535b1 143
rgrover1 287:cca148e535b1 144 ble.addService(configService);
rgrover1 287:cca148e535b1 145 ble.onDataWritten(this, &URIBeaconConfigService::onDataWrittenCallback);
rgrover1 287:cca148e535b1 146
rgrover1 309:bc91f7ba346d 147 /* Start out by advertising the configService for a limited time after
rgrover1 309:bc91f7ba346d 148 * startup; and switch to the normal non-connectible beacon functionality
rgrover1 309:bc91f7ba346d 149 * afterwards. */
rgrover1 309:bc91f7ba346d 150 setupUriBeaconConfigAdvertisements();
rgrover1 309:bc91f7ba346d 151
rgrover1 287:cca148e535b1 152 initSucceeded = true;
rgrover1 192:3fd3dcf49005 153 }
rgrover1 192:3fd3dcf49005 154
rgrover1 193:ac2feceb7e87 155 bool configuredSuccessfully(void) const {
rgrover1 192:3fd3dcf49005 156 return initSucceeded;
rgrover1 171:6092e61690dc 157 }
rgrover1 171:6092e61690dc 158
rgrover1 309:bc91f7ba346d 159 /* Start out by advertising the configService for a limited time after
rgrover1 309:bc91f7ba346d 160 * startup; and switch to the normal non-connectible beacon functionality
rgrover1 309:bc91f7ba346d 161 * afterwards. */
rgrover1 309:bc91f7ba346d 162 void setupUriBeaconConfigAdvertisements()
rgrover1 309:bc91f7ba346d 163 {
rgrover1 309:bc91f7ba346d 164 char DEVICE_NAME[] = "mUriBeacon Config";
rgrover1 309:bc91f7ba346d 165
rgrover1 309:bc91f7ba346d 166 ble.clearAdvertisingPayload();
rgrover1 309:bc91f7ba346d 167
rgrover1 309:bc91f7ba346d 168 // Stops advertising the UriBeacon Config Service after a delay
rgrover1 309:bc91f7ba346d 169 configAdvertisementTimeoutTicker.attach(this, &URIBeaconConfigService::timeout, ADVERTISING_TIMEOUT_SECONDS);
rgrover1 309:bc91f7ba346d 170
rgrover1 309:bc91f7ba346d 171 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rgrover1 309:bc91f7ba346d 172
rgrover1 309:bc91f7ba346d 173 // UUID is in different order in the ADV frame (!)
rgrover1 309:bc91f7ba346d 174 uint8_t reversedServiceUUID[sizeof(UUID_URI_BEACON_SERVICE)];
rgrover1 309:bc91f7ba346d 175 for (unsigned int i = 0; i < sizeof(UUID_URI_BEACON_SERVICE); i++) {
rgrover1 309:bc91f7ba346d 176 reversedServiceUUID[i] =
rgrover1 309:bc91f7ba346d 177 UUID_URI_BEACON_SERVICE[sizeof(UUID_URI_BEACON_SERVICE) - i - 1];
rgrover1 309:bc91f7ba346d 178 }
rgrover1 309:bc91f7ba346d 179 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS, reversedServiceUUID, sizeof(reversedServiceUUID));
rgrover1 309:bc91f7ba346d 180 ble.accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_TAG);
rgrover1 309:bc91f7ba346d 181 ble.accumulateScanResponse(GapAdvertisingData::COMPLETE_LOCAL_NAME, reinterpret_cast<uint8_t *>(&DEVICE_NAME), sizeof(DEVICE_NAME));
rgrover1 309:bc91f7ba346d 182 ble.accumulateScanResponse(
rgrover1 309:bc91f7ba346d 183 GapAdvertisingData::TX_POWER_LEVEL,
rgrover1 309:bc91f7ba346d 184 reinterpret_cast<uint8_t *>(
rgrover1 309:bc91f7ba346d 185 &defaultAdvPowerLevels[URIBeaconConfigService::TX_POWER_MODE_LOW]),
rgrover1 309:bc91f7ba346d 186 sizeof(uint8_t));
rgrover1 309:bc91f7ba346d 187
rgrover1 309:bc91f7ba346d 188 /////// TODO
rgrover1 309:bc91f7ba346d 189 // ble.setTxPower(
rgrover1 309:bc91f7ba346d 190 // firmwarePowerLevels[URIBeaconConfigService::TX_POWER_MODE_LOW]);
rgrover1 309:bc91f7ba346d 191
rgrover1 309:bc91f7ba346d 192 ble.setDeviceName(reinterpret_cast<uint8_t *>(&DEVICE_NAME));
rgrover1 309:bc91f7ba346d 193 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rgrover1 309:bc91f7ba346d 194 ble.setAdvertisingInterval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(ADVERTISING_INTERVAL_MSEC));
rgrover1 309:bc91f7ba346d 195 }
rgrover1 309:bc91f7ba346d 196
rgrover1 309:bc91f7ba346d 197 void setupUriBeaconAdvertisements()
rgrover1 309:bc91f7ba346d 198 {
rgrover1 309:bc91f7ba346d 199 // uint8_t serviceData[SERVICE_DATA_MAX];
rgrover1 309:bc91f7ba346d 200 // int serviceDataLen = 0;
rgrover1 309:bc91f7ba346d 201
rgrover1 309:bc91f7ba346d 202 // advertisingStateLed = 1;
rgrover1 309:bc91f7ba346d 203 // connectionStateLed = 1;
rgrover1 309:bc91f7ba346d 204
rgrover1 309:bc91f7ba346d 205 ble.shutdown();
rgrover1 309:bc91f7ba346d 206 ble.init();
rgrover1 309:bc91f7ba346d 207
rgrover1 309:bc91f7ba346d 208 // Fields from the Service
rgrover1 309:bc91f7ba346d 209 // int beaconPeriod = persistentData.params.beaconPeriod;
rgrover1 309:bc91f7ba346d 210 // int txPowerMode = persistentData.params.txPowerMode;
rgrover1 309:bc91f7ba346d 211 // int uriDataLength = persistentData.params.uriDataLength;
rgrover1 309:bc91f7ba346d 212 // URIBeaconConfigService::UriData_t &uriData = persistentData.params.uriData;
rgrover1 309:bc91f7ba346d 213 // URIBeaconConfigService::PowerLevels_t &advPowerLevels = persistentData.params.advPowerLevels;
rgrover1 309:bc91f7ba346d 214 // uint8_t flags = persistentData.params.flags;
rgrover1 309:bc91f7ba346d 215
rgrover1 309:bc91f7ba346d 216 // pstorageSave();
rgrover1 309:bc91f7ba346d 217
rgrover1 309:bc91f7ba346d 218 // delete uriBeaconConfig;
rgrover1 309:bc91f7ba346d 219 // uriBeaconConfig = NULL;
rgrover1 309:bc91f7ba346d 220
rgrover1 309:bc91f7ba346d 221 // ble.clearAdvertisingPayload();
rgrover1 309:bc91f7ba346d 222 // ble.setTxPower(firmwarePowerLevels[txPowerMode]);
rgrover1 309:bc91f7ba346d 223
rgrover1 309:bc91f7ba346d 224 // ble.setAdvertisingType(
rgrover1 309:bc91f7ba346d 225 // GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
rgrover1 309:bc91f7ba346d 226
rgrover1 309:bc91f7ba346d 227 // ble.setAdvertisingInterval(
rgrover1 309:bc91f7ba346d 228 // Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(beaconPeriod));
rgrover1 309:bc91f7ba346d 229
rgrover1 309:bc91f7ba346d 230 // ble.accumulateAdvertisingPayload(
rgrover1 309:bc91f7ba346d 231 // GapAdvertisingData::BREDR_NOT_SUPPORTED |
rgrover1 309:bc91f7ba346d 232 // GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rgrover1 309:bc91f7ba346d 233
rgrover1 309:bc91f7ba346d 234 // ble.accumulateAdvertisingPayload(
rgrover1 309:bc91f7ba346d 235 // GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, BEACON_UUID,
rgrover1 309:bc91f7ba346d 236 // sizeof(BEACON_UUID));
rgrover1 309:bc91f7ba346d 237
rgrover1 309:bc91f7ba346d 238 // serviceData[serviceDataLen++] = BEACON_UUID[0];
rgrover1 309:bc91f7ba346d 239 // serviceData[serviceDataLen++] = BEACON_UUID[1];
rgrover1 309:bc91f7ba346d 240 // serviceData[serviceDataLen++] = flags;
rgrover1 309:bc91f7ba346d 241 // serviceData[serviceDataLen++] = advPowerLevels[txPowerMode];
rgrover1 309:bc91f7ba346d 242 // for (int j=0; j < uriDataLength; j++) {
rgrover1 309:bc91f7ba346d 243 // serviceData[serviceDataLen++] = uriData[j];
rgrover1 309:bc91f7ba346d 244 // }
rgrover1 309:bc91f7ba346d 245
rgrover1 309:bc91f7ba346d 246 // ble.accumulateAdvertisingPayload(GapAdvertisingData::SERVICE_DATA, serviceData, serviceDataLen);
rgrover1 309:bc91f7ba346d 247
rgrover1 309:bc91f7ba346d 248 // ble.startAdvertising();
rgrover1 309:bc91f7ba346d 249 }
rgrover1 309:bc91f7ba346d 250
rgrover1 309:bc91f7ba346d 251 // After advertising timeout, stop config and switch to UriBeacon
rgrover1 309:bc91f7ba346d 252 void timeout(void)
rgrover1 309:bc91f7ba346d 253 {
rgrover1 309:bc91f7ba346d 254 Gap::GapState_t state;
rgrover1 309:bc91f7ba346d 255 state = ble.getGapState();
rgrover1 309:bc91f7ba346d 256 if (!state.connected) {
rgrover1 309:bc91f7ba346d 257 setupUriBeaconAdvertisements();
rgrover1 309:bc91f7ba346d 258 configAdvertisementTimeoutTicker.detach();
rgrover1 309:bc91f7ba346d 259 }
rgrover1 309:bc91f7ba346d 260 }
rgrover1 287:cca148e535b1 261
rgrover1 287:cca148e535b1 262 private:
rgrover1 287:cca148e535b1 263 // True if the lock bits are non-zero
rgrover1 287:cca148e535b1 264 bool isLocked() {
rgrover1 287:cca148e535b1 265 Lock_t testLock;
rgrover1 287:cca148e535b1 266 memset(testLock, 0, sizeof(Lock_t));
rgrover1 287:cca148e535b1 267 return memcmp(params.lock, testLock, sizeof(Lock_t));
rgrover1 171:6092e61690dc 268 }
rgrover1 171:6092e61690dc 269
rgrover1 287:cca148e535b1 270 /*
rgrover1 287:cca148e535b1 271 * This callback is invoked when a GATT client attempts to modify any of the
rgrover1 287:cca148e535b1 272 * characteristics of this service. Attempts to do so are also applied to
rgrover1 287:cca148e535b1 273 * the internal state of this service object.
rgrover1 286:898ff71b9502 274 */
rgrover1 287:cca148e535b1 275 void onDataWrittenCallback(const GattCharacteristicWriteCBParams *writeParams) {
rgrover1 287:cca148e535b1 276 uint16_t handle = writeParams->charHandle;
rgrover1 286:898ff71b9502 277
rgrover1 287:cca148e535b1 278 if (handle == lockChar.getValueHandle()) {
rgrover1 287:cca148e535b1 279 // Validated earlier
rgrover1 287:cca148e535b1 280 memcpy(params.lock, writeParams->data, sizeof(Lock_t));
rgrover1 287:cca148e535b1 281 // use isLocked() in case bits are being set to all 0's
rgrover1 287:cca148e535b1 282 lockedState = isLocked();
rgrover1 287:cca148e535b1 283 } else if (handle == unlockChar.getValueHandle()) {
rgrover1 287:cca148e535b1 284 // Validated earlier
rgrover1 287:cca148e535b1 285 memset(params.lock, 0, sizeof(Lock_t));
rgrover1 287:cca148e535b1 286 lockedState = false;
rgrover1 287:cca148e535b1 287 } else if (handle == uriDataChar.getValueHandle()) {
rgrover1 287:cca148e535b1 288 params.uriDataLength = writeParams->len;
rgrover1 287:cca148e535b1 289 memcpy(params.uriData, writeParams->data, params.uriDataLength);
rgrover1 287:cca148e535b1 290 } else if (handle == flagsChar.getValueHandle()) {
rgrover1 287:cca148e535b1 291 params.flags = *(writeParams->data);
rgrover1 287:cca148e535b1 292 } else if (handle == advPowerLevelsChar.getValueHandle()) {
rgrover1 287:cca148e535b1 293 memcpy(params.advPowerLevels, writeParams->data, sizeof(PowerLevels_t));
rgrover1 287:cca148e535b1 294 } else if (handle == txPowerModeChar.getValueHandle()) {
rgrover1 287:cca148e535b1 295 params.txPowerMode = *(writeParams->data);
rgrover1 287:cca148e535b1 296 } else if (handle == beaconPeriodChar.getValueHandle()) {
rgrover1 287:cca148e535b1 297 params.beaconPeriod = *((uint16_t *)(writeParams->data));
rgrover1 287:cca148e535b1 298 } else if (handle == resetChar.getValueHandle()) {
rgrover1 287:cca148e535b1 299 resetToDefaults();
rgrover1 185:7cd70497aec8 300 }
rgrover1 185:7cd70497aec8 301 }
rgrover1 185:7cd70497aec8 302
rgrover1 287:cca148e535b1 303 /*
rgrover1 287:cca148e535b1 304 * Reset the default values.
rgrover1 242:0e9201b67e2f 305 */
rgrover1 287:cca148e535b1 306 void resetToDefaults(void) {
rgrover1 287:cca148e535b1 307 lockedState = false;
rgrover1 287:cca148e535b1 308 memset(params.lock, 0, sizeof(Lock_t));
rgrover1 287:cca148e535b1 309 memcpy(params.uriData, defaultUriData, URI_DATA_MAX);
rgrover1 287:cca148e535b1 310 params.uriDataLength = defaultUriDataLength;
rgrover1 287:cca148e535b1 311 params.flags = 0;
rgrover1 287:cca148e535b1 312 memcpy(params.advPowerLevels, defaultAdvPowerLevels, sizeof(PowerLevels_t));
rgrover1 287:cca148e535b1 313 params.txPowerMode = TX_POWER_MODE_LOW;
rgrover1 287:cca148e535b1 314 params.beaconPeriod = 1000;
rgrover1 287:cca148e535b1 315 updateCharacteristicValues();
rgrover1 211:f181effe5de3 316 }
rgrover1 211:f181effe5de3 317
mbedAustin 232:4cfb5b8a4fb9 318 /*
rgrover1 287:cca148e535b1 319 * Internal helper function used to update the GATT database following any
rgrover1 287:cca148e535b1 320 * change to the internal state of the service object.
rgrover1 242:0e9201b67e2f 321 */
rgrover1 287:cca148e535b1 322 void updateCharacteristicValues(void) {
rgrover1 287:cca148e535b1 323 ble.updateCharacteristicValue(lockedStateChar.getValueHandle(), &lockedState, 1);
rgrover1 287:cca148e535b1 324 ble.updateCharacteristicValue(uriDataChar.getValueHandle(), params.uriData, params.uriDataLength);
rgrover1 287:cca148e535b1 325 ble.updateCharacteristicValue(flagsChar.getValueHandle(), &params.flags, 1);
rgrover1 287:cca148e535b1 326 ble.updateCharacteristicValue(beaconPeriodChar.getValueHandle(),
rgrover1 287:cca148e535b1 327 reinterpret_cast<uint8_t *>(&params.beaconPeriod), sizeof(uint16_t));
rgrover1 287:cca148e535b1 328 ble.updateCharacteristicValue(txPowerModeChar.getValueHandle(), &params.txPowerMode, 1);
rgrover1 287:cca148e535b1 329 ble.updateCharacteristicValue(advPowerLevelsChar.getValueHandle(),
rgrover1 287:cca148e535b1 330 reinterpret_cast<uint8_t *>(params.advPowerLevels), sizeof(PowerLevels_t));
rgrover1 287:cca148e535b1 331 }
rgrover1 287:cca148e535b1 332
rgrover1 287:cca148e535b1 333 private:
rgrover1 287:cca148e535b1 334 void lockAuthorizationCallback(GattCharacteristicWriteAuthCBParams *authParams) {
rgrover1 287:cca148e535b1 335 authParams->authorizationReply = (authParams->len == sizeof(Lock_t)) && !lockedState;
rgrover1 287:cca148e535b1 336 }
rgrover1 287:cca148e535b1 337
rgrover1 287:cca148e535b1 338
rgrover1 287:cca148e535b1 339 void unlockAuthorizationCallback(GattCharacteristicWriteAuthCBParams *authParams) {
rgrover1 287:cca148e535b1 340 if (!lockedState || (authParams->len == sizeof(Lock_t) && (memcmp(authParams->data, params.lock, sizeof(Lock_t)) == 0))) {
rgrover1 287:cca148e535b1 341 authParams->authorizationReply = true;
rgrover1 287:cca148e535b1 342 } else {
rgrover1 287:cca148e535b1 343 authParams->authorizationReply = false;
rgrover1 287:cca148e535b1 344 }
rgrover1 287:cca148e535b1 345 }
rgrover1 287:cca148e535b1 346
rgrover1 287:cca148e535b1 347 void uriDataWriteAuthorizationCallback(GattCharacteristicWriteAuthCBParams *authParams) {
rgrover1 287:cca148e535b1 348 if (lockedState || (authParams->offset != 0) || (authParams->len > URI_DATA_MAX)) {
rgrover1 287:cca148e535b1 349 authParams->authorizationReply = false;
rgrover1 287:cca148e535b1 350 }
rgrover1 287:cca148e535b1 351 }
rgrover1 287:cca148e535b1 352
rgrover1 287:cca148e535b1 353 void flagsAuthorizationCallback(GattCharacteristicWriteAuthCBParams *authParams) {
rgrover1 287:cca148e535b1 354 if (lockedState || authParams->len != 1) {
rgrover1 287:cca148e535b1 355 authParams->authorizationReply = false;
rgrover1 287:cca148e535b1 356 }
rgrover1 287:cca148e535b1 357 }
rgrover1 287:cca148e535b1 358
rgrover1 287:cca148e535b1 359 void denyGATTWritesIfLocked(GattCharacteristicWriteAuthCBParams *authParams) {
rgrover1 287:cca148e535b1 360 if (lockedState) {
rgrover1 287:cca148e535b1 361 authParams->authorizationReply = false;
rgrover1 287:cca148e535b1 362 }
rgrover1 287:cca148e535b1 363 }
rgrover1 287:cca148e535b1 364
rgrover1 287:cca148e535b1 365 BLEDevice &ble;
rgrover1 287:cca148e535b1 366 Params_t &params;
rgrover1 287:cca148e535b1 367 // Default value that is restored on reset
rgrover1 309:bc91f7ba346d 368 size_t defaultUriDataLength;
rgrover1 309:bc91f7ba346d 369 UriData_t defaultUriData;
rgrover1 287:cca148e535b1 370 // Default value that is restored on reset
rgrover1 287:cca148e535b1 371 PowerLevels_t &defaultAdvPowerLevels;
rgrover1 287:cca148e535b1 372 uint8_t lockedState;
rgrover1 287:cca148e535b1 373 bool initSucceeded;
rgrover1 287:cca148e535b1 374 uint8_t resetFlag;
rgrover1 309:bc91f7ba346d 375 Ticker configAdvertisementTimeoutTicker;
rgrover1 287:cca148e535b1 376
rgrover1 287:cca148e535b1 377 ReadOnlyGattCharacteristic<uint8_t> lockedStateChar;
rgrover1 287:cca148e535b1 378 WriteOnlyGattCharacteristic<Lock_t> lockChar;
rgrover1 287:cca148e535b1 379 GattCharacteristic uriDataChar;
rgrover1 287:cca148e535b1 380 WriteOnlyGattCharacteristic<Lock_t> unlockChar;
rgrover1 287:cca148e535b1 381 ReadWriteGattCharacteristic<uint8_t> flagsChar;
rgrover1 287:cca148e535b1 382 ReadWriteGattCharacteristic<PowerLevels_t> advPowerLevelsChar;
rgrover1 287:cca148e535b1 383 ReadWriteGattCharacteristic<uint8_t> txPowerModeChar;
rgrover1 287:cca148e535b1 384 ReadWriteGattCharacteristic<uint16_t> beaconPeriodChar;
rgrover1 287:cca148e535b1 385 WriteOnlyGattCharacteristic<uint8_t> resetChar;
rgrover1 287:cca148e535b1 386
rgrover1 287:cca148e535b1 387 public:
rgrover1 287:cca148e535b1 388 /*
rgrover1 287:cca148e535b1 389 * Encode a human-readable URI into the binary format defined by URIBeacon spec (https://github.com/google/uribeacon/tree/master/specification).
rgrover1 287:cca148e535b1 390 */
rgrover1 287:cca148e535b1 391 static void encodeURI(const char *uriDataIn, UriData_t uriDataOut, size_t &sizeofURIDataOut) {
rgrover1 287:cca148e535b1 392 sizeofURIDataOut = 0;
rgrover1 287:cca148e535b1 393 memset(uriDataOut, 0, sizeof(UriData_t));
rgrover1 287:cca148e535b1 394
rgrover1 287:cca148e535b1 395 if ((uriDataIn == NULL) || (strlen(uriDataIn) == 0)) {
rgrover1 287:cca148e535b1 396 return;
rgrover1 284:82fefb5be8ed 397 }
rgrover1 284:82fefb5be8ed 398
rgrover1 287:cca148e535b1 399 /*
rgrover1 287:cca148e535b1 400 * handle prefix
rgrover1 287:cca148e535b1 401 */
rgrover1 284:82fefb5be8ed 402 const char *prefixes[] = {
rgrover1 284:82fefb5be8ed 403 "http://www.",
rgrover1 284:82fefb5be8ed 404 "https://www.",
rgrover1 284:82fefb5be8ed 405 "http://",
rgrover1 284:82fefb5be8ed 406 "https://",
rgrover1 284:82fefb5be8ed 407 "urn:uuid:"
rgrover1 284:82fefb5be8ed 408 };
rgrover1 287:cca148e535b1 409 const size_t NUM_PREFIXES = sizeof(prefixes) / sizeof(char *);
rgrover1 284:82fefb5be8ed 410 for (unsigned i = 0; i < NUM_PREFIXES; i++) {
rgrover1 284:82fefb5be8ed 411 size_t prefixLen = strlen(prefixes[i]);
rgrover1 287:cca148e535b1 412 if (strncmp(uriDataIn, prefixes[i], prefixLen) == 0) {
rgrover1 287:cca148e535b1 413 uriDataOut[sizeofURIDataOut++] = i;
rgrover1 287:cca148e535b1 414 uriDataIn += prefixLen;
rgrover1 284:82fefb5be8ed 415 break;
rgrover1 284:82fefb5be8ed 416 }
rgrover1 284:82fefb5be8ed 417 }
rgrover1 284:82fefb5be8ed 418
rgrover1 287:cca148e535b1 419 /*
rgrover1 287:cca148e535b1 420 * handle suffixes
rgrover1 287:cca148e535b1 421 */
rgrover1 284:82fefb5be8ed 422 const char *suffixes[] = {
rgrover1 284:82fefb5be8ed 423 ".com/",
rgrover1 284:82fefb5be8ed 424 ".org/",
rgrover1 284:82fefb5be8ed 425 ".edu/",
rgrover1 284:82fefb5be8ed 426 ".net/",
rgrover1 284:82fefb5be8ed 427 ".info/",
rgrover1 284:82fefb5be8ed 428 ".biz/",
rgrover1 284:82fefb5be8ed 429 ".gov/",
rgrover1 284:82fefb5be8ed 430 ".com",
rgrover1 284:82fefb5be8ed 431 ".org",
rgrover1 284:82fefb5be8ed 432 ".edu",
rgrover1 284:82fefb5be8ed 433 ".net",
rgrover1 284:82fefb5be8ed 434 ".info",
rgrover1 284:82fefb5be8ed 435 ".biz",
rgrover1 284:82fefb5be8ed 436 ".gov"
rgrover1 284:82fefb5be8ed 437 };
rgrover1 284:82fefb5be8ed 438 const size_t NUM_SUFFIXES = sizeof(suffixes) / sizeof(char *);
rgrover1 287:cca148e535b1 439 while (*uriDataIn && (sizeofURIDataOut < URI_DATA_MAX)) {
rgrover1 284:82fefb5be8ed 440 /* check for suffix match */
rgrover1 284:82fefb5be8ed 441 unsigned i;
rgrover1 284:82fefb5be8ed 442 for (i = 0; i < NUM_SUFFIXES; i++) {
rgrover1 284:82fefb5be8ed 443 size_t suffixLen = strlen(suffixes[i]);
rgrover1 287:cca148e535b1 444 if (suffixLen == 0) {
rgrover1 284:82fefb5be8ed 445 continue;
rgrover1 284:82fefb5be8ed 446 }
rgrover1 284:82fefb5be8ed 447
rgrover1 287:cca148e535b1 448 if (strncmp(uriDataIn, suffixes[i], suffixLen) == 0) {
rgrover1 287:cca148e535b1 449 uriDataOut[sizeofURIDataOut++] = i;
rgrover1 287:cca148e535b1 450 uriDataIn += suffixLen;
rgrover1 284:82fefb5be8ed 451 break; /* from the for loop for checking against suffixes */
rgrover1 284:82fefb5be8ed 452 }
rgrover1 284:82fefb5be8ed 453 }
rgrover1 284:82fefb5be8ed 454 /* This is the default case where we've got an ordinary character which doesn't match a suffix. */
rgrover1 284:82fefb5be8ed 455 if (i == NUM_SUFFIXES) {
rgrover1 287:cca148e535b1 456 uriDataOut[sizeofURIDataOut++] = *uriDataIn;
rgrover1 287:cca148e535b1 457 ++uriDataIn;
rgrover1 284:82fefb5be8ed 458 }
rgrover1 284:82fefb5be8ed 459 }
rgrover1 284:82fefb5be8ed 460 }
rgrover1 171:6092e61690dc 461 };
rgrover1 171:6092e61690dc 462
rgrover1 287:cca148e535b1 463 #endif // SERVICES_URIBEACONCONFIGSERVICE_H_