Nordic stack and drivers for the mbed BLE API
Dependents: Sensen-classic-v8-IAQ_copy_4
Fork of nRF51822 by
Diff: TARGET_MCU_NRF51822/source/nRF5xGap.cpp
- Revision:
- 638:c90ae1400bf2
diff -r f7faad332abc -r c90ae1400bf2 TARGET_MCU_NRF51822/source/nRF5xGap.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_MCU_NRF51822/source/nRF5xGap.cpp Wed Sep 14 14:39:43 2016 +0100 @@ -0,0 +1,933 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * 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. + */ + +#include "nRF5xn.h" +#ifdef YOTTA_CFG_MBED_OS + #include "mbed-drivers/mbed.h" +#else + #include "mbed.h" +#endif +#include "ble/BLE.h" + +#include "common/common.h" +#include "ble_advdata.h" +#include "ble_hci.h" + +void radioNotificationStaticCallback(bool param) { + nRF5xGap &gap = (nRF5xGap &) nRF5xn::Instance(BLE::DEFAULT_INSTANCE).getGap(); + gap.processRadioNotificationEvent(param); +} + +/**************************************************************************/ +/*! + @brief Sets the advertising parameters and payload for the device + + @param[in] params + Basic advertising details, including the advertising + delay, timeout and how the device should be advertised + @params[in] advData + The primary advertising data payload + @params[in] scanResponse + The optional Scan Response payload if the advertising + type is set to \ref GapAdvertisingParams::ADV_SCANNABLE_UNDIRECTED + in \ref GapAdveritinngParams + + @returns \ref ble_error_t + + @retval BLE_ERROR_NONE + Everything executed properly + + @retval BLE_ERROR_BUFFER_OVERFLOW + The proposed action would cause a buffer overflow. All + advertising payloads must be <= 31 bytes, for example. + + @retval BLE_ERROR_NOT_IMPLEMENTED + A feature was requested that is not yet supported in the + nRF51 firmware or hardware. + + @retval BLE_ERROR_PARAM_OUT_OF_RANGE + One of the proposed values is outside the valid range. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::setAdvertisingData(const GapAdvertisingData &advData, const GapAdvertisingData &scanResponse) +{ + /* Make sure we don't exceed the advertising payload length */ + if (advData.getPayloadLen() > GAP_ADVERTISING_DATA_MAX_PAYLOAD) { + return BLE_ERROR_BUFFER_OVERFLOW; + } + + /* Make sure we have a payload! */ + if (advData.getPayloadLen() == 0) { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } + + /* Check the scan response payload limits */ + //if ((params.getAdvertisingType() == GapAdvertisingParams::ADV_SCANNABLE_UNDIRECTED)) + //{ + // /* Check if we're within the upper limit */ + // if (advData.getPayloadLen() > GAP_ADVERTISING_DATA_MAX_PAYLOAD) + // { + // return BLE_ERROR_BUFFER_OVERFLOW; + // } + // /* Make sure we have a payload! */ + // if (advData.getPayloadLen() == 0) + // { + // return BLE_ERROR_PARAM_OUT_OF_RANGE; + // } + //} + + /* Send advertising data! */ + ASSERT(ERROR_NONE == + sd_ble_gap_adv_data_set(advData.getPayload(), + advData.getPayloadLen(), + scanResponse.getPayload(), + scanResponse.getPayloadLen()), + BLE_ERROR_PARAM_OUT_OF_RANGE); + + /* Make sure the GAP Service appearance value is aligned with the + *appearance from GapAdvertisingData */ + ASSERT(ERROR_NONE == sd_ble_gap_appearance_set(advData.getAppearance()), + BLE_ERROR_PARAM_OUT_OF_RANGE); + + /* ToDo: Perform some checks on the payload, for example the Scan Response can't */ + /* contains a flags AD type, etc. */ + + return BLE_ERROR_NONE; +} + +/**************************************************************************/ +/*! + @brief Starts the BLE HW, initialising any services that were + added before this function was called. + + @note All services must be added before calling this function! + + @returns ble_error_t + + @retval BLE_ERROR_NONE + Everything executed properly + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::startAdvertising(const GapAdvertisingParams ¶ms) +{ + /* Make sure we support the advertising type */ + if (params.getAdvertisingType() == GapAdvertisingParams::ADV_CONNECTABLE_DIRECTED) { + /* ToDo: This requires a propery security implementation, etc. */ + return BLE_ERROR_NOT_IMPLEMENTED; + } + + /* Check interval range */ + if (params.getAdvertisingType() == GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED) { + /* Min delay is slightly longer for unconnectable devices */ + if ((params.getIntervalInADVUnits() < GapAdvertisingParams::GAP_ADV_PARAMS_INTERVAL_MIN_NONCON) || + (params.getIntervalInADVUnits() > GapAdvertisingParams::GAP_ADV_PARAMS_INTERVAL_MAX)) { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } + } else { + if ((params.getIntervalInADVUnits() < GapAdvertisingParams::GAP_ADV_PARAMS_INTERVAL_MIN) || + (params.getIntervalInADVUnits() > GapAdvertisingParams::GAP_ADV_PARAMS_INTERVAL_MAX)) { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } + } + + /* Check timeout is zero for Connectable Directed */ + if ((params.getAdvertisingType() == GapAdvertisingParams::ADV_CONNECTABLE_DIRECTED) && (params.getTimeout() != 0)) { + /* Timeout must be 0 with this type, although we'll never get here */ + /* since this isn't implemented yet anyway */ + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } + + /* Check timeout for other advertising types */ + if ((params.getAdvertisingType() != GapAdvertisingParams::ADV_CONNECTABLE_DIRECTED) && + (params.getTimeout() > GapAdvertisingParams::GAP_ADV_PARAMS_TIMEOUT_MAX)) { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } + + /* Allocate the stack's whitelist statically */ + ble_gap_whitelist_t whitelist; + ble_gap_addr_t *whitelistAddressPtrs[YOTTA_CFG_WHITELIST_MAX_SIZE]; + ble_gap_irk_t *whitelistIrkPtrs[YOTTA_CFG_IRK_TABLE_MAX_SIZE]; + /* Initialize the whitelist */ + whitelist.pp_addrs = whitelistAddressPtrs; + whitelist.pp_irks = whitelistIrkPtrs; + whitelist.addr_count = 0; + whitelist.irk_count = 0; + + /* Add missing IRKs to whitelist from the bond table held by the SoftDevice */ + if (advertisingPolicyMode != Gap::ADV_POLICY_IGNORE_WHITELIST) { + ble_error_t error = generateStackWhitelist(whitelist); + if (error != BLE_ERROR_NONE) { + return error; + } + } + + /* Start Advertising */ + ble_gap_adv_params_t adv_para = {0}; + + adv_para.type = params.getAdvertisingType(); + adv_para.p_peer_addr = NULL; // Undirected advertisement + adv_para.fp = advertisingPolicyMode; + adv_para.p_whitelist = &whitelist; + adv_para.interval = params.getIntervalInADVUnits(); // advertising interval (in units of 0.625 ms) + adv_para.timeout = params.getTimeout(); + + ASSERT(ERROR_NONE == sd_ble_gap_adv_start(&adv_para), BLE_ERROR_PARAM_OUT_OF_RANGE); + + return BLE_ERROR_NONE; +} + +/* Observer role is not supported by S110, return BLE_ERROR_NOT_IMPLEMENTED */ +#if !defined(TARGET_MCU_NRF51_16K_S110) && !defined(TARGET_MCU_NRF51_32K_S110) +ble_error_t nRF5xGap::startRadioScan(const GapScanningParams &scanningParams) +{ + /* Allocate the stack's whitelist statically */ + ble_gap_whitelist_t whitelist; + ble_gap_addr_t *whitelistAddressPtrs[YOTTA_CFG_WHITELIST_MAX_SIZE]; + ble_gap_irk_t *whitelistIrkPtrs[YOTTA_CFG_IRK_TABLE_MAX_SIZE]; + /* Initialize the whitelist */ + whitelist.pp_addrs = whitelistAddressPtrs; + whitelist.pp_irks = whitelistIrkPtrs; + whitelist.addr_count = 0; + whitelist.irk_count = 0; + + /* Add missing IRKs to whitelist from the bond table held by the SoftDevice */ + if (scanningPolicyMode != Gap::SCAN_POLICY_IGNORE_WHITELIST) { + ble_error_t error = generateStackWhitelist(whitelist); + if (error != BLE_ERROR_NONE) { + return error; + } + } + + ble_gap_scan_params_t scanParams = { + .active = scanningParams.getActiveScanning(), /**< If 1, perform active scanning (scan requests). */ + .selective = scanningPolicyMode, /**< If 1, ignore unknown devices (non whitelisted). */ + .p_whitelist = &whitelist, /**< Pointer to whitelist, NULL if none is given. */ + .interval = scanningParams.getInterval(), /**< Scan interval between 0x0004 and 0x4000 in 0.625ms units (2.5ms to 10.24s). */ + .window = scanningParams.getWindow(), /**< Scan window between 0x0004 and 0x4000 in 0.625ms units (2.5ms to 10.24s). */ + .timeout = scanningParams.getTimeout(), /**< Scan timeout between 0x0001 and 0xFFFF in seconds, 0x0000 disables timeout. */ + }; + + if (sd_ble_gap_scan_start(&scanParams) != NRF_SUCCESS) { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } + + return BLE_ERROR_NONE; +} + +ble_error_t nRF5xGap::stopScan(void) { + if (sd_ble_gap_scan_stop() == NRF_SUCCESS) { + return BLE_ERROR_NONE; + } + + return BLE_STACK_BUSY; +} +#endif + +/**************************************************************************/ +/*! + @brief Stops the BLE HW and disconnects from any devices + + @returns ble_error_t + + @retval BLE_ERROR_NONE + Everything executed properly + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::stopAdvertising(void) +{ + /* Stop Advertising */ + ASSERT(ERROR_NONE == sd_ble_gap_adv_stop(), BLE_ERROR_PARAM_OUT_OF_RANGE); + + state.advertising = 0; + + return BLE_ERROR_NONE; +} + +ble_error_t nRF5xGap::connect(const Address_t peerAddr, + BLEProtocol::AddressType_t peerAddrType, + const ConnectionParams_t *connectionParams, + const GapScanningParams *scanParamsIn) +{ + ble_gap_addr_t addr; + addr.addr_type = peerAddrType; + memcpy(addr.addr, peerAddr, Gap::ADDR_LEN); + + ble_gap_conn_params_t connParams; + if (connectionParams != NULL) { + connParams.min_conn_interval = connectionParams->minConnectionInterval; + connParams.max_conn_interval = connectionParams->maxConnectionInterval; + connParams.slave_latency = connectionParams->slaveLatency; + connParams.conn_sup_timeout = connectionParams->connectionSupervisionTimeout; + } else { + connParams.min_conn_interval = 50; + connParams.max_conn_interval = 100; + connParams.slave_latency = 0; + connParams.conn_sup_timeout = 600; + } + + /* Allocate the stack's whitelist statically */ + ble_gap_whitelist_t whitelist; + ble_gap_addr_t *whitelistAddressPtrs[YOTTA_CFG_WHITELIST_MAX_SIZE]; + ble_gap_irk_t *whitelistIrkPtrs[YOTTA_CFG_IRK_TABLE_MAX_SIZE]; + /* Initialize the whitelist */ + whitelist.pp_addrs = whitelistAddressPtrs; + whitelist.pp_irks = whitelistIrkPtrs; + whitelist.addr_count = 0; + whitelist.irk_count = 0; + + /* Add missing IRKs to whitelist from the bond table held by the SoftDevice */ + if (scanningPolicyMode != Gap::SCAN_POLICY_IGNORE_WHITELIST) { + ble_error_t error = generateStackWhitelist(whitelist); + if (error != BLE_ERROR_NONE) { + return error; + } + } + + ble_gap_scan_params_t scanParams; + scanParams.selective = scanningPolicyMode; /**< If 1, ignore unknown devices (non whitelisted). */ + scanParams.p_whitelist = &whitelist; /**< Pointer to whitelist, NULL if none is given. */ + if (scanParamsIn != NULL) { + scanParams.active = scanParamsIn->getActiveScanning(); /**< If 1, perform active scanning (scan requests). */ + scanParams.interval = scanParamsIn->getInterval(); /**< Scan interval between 0x0004 and 0x4000 in 0.625ms units (2.5ms to 10.24s). */ + scanParams.window = scanParamsIn->getWindow(); /**< Scan window between 0x0004 and 0x4000 in 0.625ms units (2.5ms to 10.24s). */ + scanParams.timeout = scanParamsIn->getTimeout(); /**< Scan timeout between 0x0001 and 0xFFFF in seconds, 0x0000 disables timeout. */ + } else { + scanParams.active = _scanningParams.getActiveScanning(); /**< If 1, perform active scanning (scan requests). */ + scanParams.interval = _scanningParams.getInterval(); /**< Scan interval between 0x0004 and 0x4000 in 0.625ms units (2.5ms to 10.24s). */ + scanParams.window = _scanningParams.getWindow(); /**< Scan window between 0x0004 and 0x4000 in 0.625ms units (2.5ms to 10.24s). */ + scanParams.timeout = _scanningParams.getTimeout(); /**< Scan timeout between 0x0001 and 0xFFFF in seconds, 0x0000 disables timeout. */ + } + + uint32_t rc = sd_ble_gap_connect(&addr, &scanParams, &connParams); + if (rc == NRF_SUCCESS) { + return BLE_ERROR_NONE; + } + switch (rc) { + case NRF_ERROR_INVALID_ADDR: + return BLE_ERROR_INVALID_PARAM; + case NRF_ERROR_INVALID_PARAM: + return BLE_ERROR_INVALID_PARAM; + case NRF_ERROR_INVALID_STATE: + return BLE_ERROR_INVALID_STATE; + case BLE_ERROR_GAP_INVALID_BLE_ADDR: + return BLE_ERROR_INVALID_PARAM; + case NRF_ERROR_NO_MEM: + return BLE_ERROR_NO_MEM; + case NRF_ERROR_BUSY: + return BLE_STACK_BUSY; + default: + case BLE_ERROR_GAP_WHITELIST_IN_USE: + return BLE_ERROR_UNSPECIFIED; + } +} + +ble_error_t nRF5xGap::disconnect(Handle_t connectionHandle, DisconnectionReason_t reason) +{ + uint8_t code = BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION; + switch (reason) { + case REMOTE_USER_TERMINATED_CONNECTION: + code = BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION; + break; + case CONN_INTERVAL_UNACCEPTABLE: + code = BLE_HCI_CONN_INTERVAL_UNACCEPTABLE; + break; + default: + break; + } + + /* Disconnect if we are connected to a central device */ + ASSERT_INT(ERROR_NONE, sd_ble_gap_disconnect(connectionHandle, code), BLE_ERROR_PARAM_OUT_OF_RANGE); + + return BLE_ERROR_NONE; +} + +/*! + @brief Disconnects if we are connected to a central device + + @returns ble_error_t + + @retval BLE_ERROR_NONE + Everything executed properly +*/ +ble_error_t nRF5xGap::disconnect(DisconnectionReason_t reason) +{ + return disconnect(m_connectionHandle, reason); +} + +ble_error_t nRF5xGap::getPreferredConnectionParams(ConnectionParams_t *params) +{ + ASSERT_INT(NRF_SUCCESS, + sd_ble_gap_ppcp_get(reinterpret_cast<ble_gap_conn_params_t *>(params)), + BLE_ERROR_PARAM_OUT_OF_RANGE); + + return BLE_ERROR_NONE; +} + +ble_error_t nRF5xGap::setPreferredConnectionParams(const ConnectionParams_t *params) +{ + ASSERT_INT(NRF_SUCCESS, + sd_ble_gap_ppcp_set(reinterpret_cast<const ble_gap_conn_params_t *>(params)), + BLE_ERROR_PARAM_OUT_OF_RANGE); + + return BLE_ERROR_NONE; +} + +ble_error_t nRF5xGap::updateConnectionParams(Handle_t handle, const ConnectionParams_t *newParams) +{ + uint32_t rc; + + rc = sd_ble_gap_conn_param_update(handle, reinterpret_cast<ble_gap_conn_params_t *>(const_cast<ConnectionParams_t*>(newParams))); + if (rc == NRF_SUCCESS) { + return BLE_ERROR_NONE; + } else { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } +} + +/**************************************************************************/ +/*! + @brief Clear nRF5xGap's state. + + @returns ble_error_t + + @retval BLE_ERROR_NONE + Everything executed properly +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::reset(void) +{ + /* Clear all state that is from the parent, including private members */ + if (Gap::reset() != BLE_ERROR_NONE) { + return BLE_ERROR_INVALID_STATE; + } + + /* Clear derived class members */ + m_connectionHandle = BLE_CONN_HANDLE_INVALID; + + /* Set the whitelist policy filter modes to IGNORE_WHITELIST */ + advertisingPolicyMode = Gap::ADV_POLICY_IGNORE_WHITELIST; + scanningPolicyMode = Gap::SCAN_POLICY_IGNORE_WHITELIST; + + /* Clear the internal whitelist */ + whitelistAddressesSize = 0; + + return BLE_ERROR_NONE; +} + +/**************************************************************************/ +/*! + @brief Sets the 16-bit connection handle +*/ +/**************************************************************************/ +void nRF5xGap::setConnectionHandle(uint16_t con_handle) +{ + m_connectionHandle = con_handle; +} + +/**************************************************************************/ +/*! + @brief Gets the 16-bit connection handle +*/ +/**************************************************************************/ +uint16_t nRF5xGap::getConnectionHandle(void) +{ + return m_connectionHandle; +} + +/**************************************************************************/ +/*! + @brief Sets the BLE device address + + @returns ble_error_t + + @section EXAMPLE + + @code + + uint8_t device_address[6] = { 0xca, 0xfe, 0xf0, 0xf0, 0xf0, 0xf0 }; + nrf.getGap().setAddress(Gap::BLEProtocol::AddressType::RANDOM_STATIC, device_address); + + @endcode +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::setAddress(AddressType_t type, const Address_t address) +{ + uint8_t cycle_mode; + ble_gap_addr_t dev_addr; + + /* When using Public or Static addresses, the cycle mode must be None. + When using Random Private addresses, the cycle mode must be Auto. + In auto mode, the given address is ignored. + */ + if ((type == BLEProtocol::AddressType::PUBLIC) || (type == BLEProtocol::AddressType::RANDOM_STATIC)) + { + cycle_mode = BLE_GAP_ADDR_CYCLE_MODE_NONE; + memcpy(dev_addr.addr, address, ADDR_LEN); + } + else if ((type == BLEProtocol::AddressType::RANDOM_PRIVATE_RESOLVABLE) || (type == BLEProtocol::AddressType::RANDOM_PRIVATE_NON_RESOLVABLE)) + { + cycle_mode = BLE_GAP_ADDR_CYCLE_MODE_AUTO; + // address is ignored when in auto mode + } + else + { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } + + dev_addr.addr_type = type; + ASSERT_INT(ERROR_NONE, sd_ble_gap_address_set(cycle_mode, &dev_addr), BLE_ERROR_PARAM_OUT_OF_RANGE); + + return BLE_ERROR_NONE; +} + +ble_error_t nRF5xGap::getAddress(AddressType_t *typeP, Address_t address) +{ + ble_gap_addr_t dev_addr; + if (sd_ble_gap_address_get(&dev_addr) != NRF_SUCCESS) { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } + + if (typeP != NULL) { + *typeP = static_cast<AddressType_t>(dev_addr.addr_type); + } + if (address != NULL) { + memcpy(address, dev_addr.addr, ADDR_LEN); + } + return BLE_ERROR_NONE; +} + +ble_error_t nRF5xGap::setDeviceName(const uint8_t *deviceName) +{ + ble_gap_conn_sec_mode_t sec_mode; + BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode); // no security is needed + + if (sd_ble_gap_device_name_set(&sec_mode, deviceName, strlen((const char *)deviceName)) == NRF_SUCCESS) { + return BLE_ERROR_NONE; + } else { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } +} + +ble_error_t nRF5xGap::getDeviceName(uint8_t *deviceName, unsigned *lengthP) +{ + if (sd_ble_gap_device_name_get(deviceName, (uint16_t *)lengthP) == NRF_SUCCESS) { + return BLE_ERROR_NONE; + } else { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } +} + +ble_error_t nRF5xGap::setAppearance(GapAdvertisingData::Appearance appearance) +{ + if (sd_ble_gap_appearance_set(appearance) == NRF_SUCCESS) { + return BLE_ERROR_NONE; + } else { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } +} + +ble_error_t nRF5xGap::getAppearance(GapAdvertisingData::Appearance *appearanceP) +{ + if ((sd_ble_gap_appearance_get(reinterpret_cast<uint16_t *>(appearanceP)) == NRF_SUCCESS)) { + return BLE_ERROR_NONE; + } else { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } +} + +/* (Valid values are -40, -20, -16, -12, -8, -4, 0, 4) */ +ble_error_t nRF5xGap::setTxPower(int8_t txPower) +{ + unsigned rc; + if ((rc = sd_ble_gap_tx_power_set(txPower)) != NRF_SUCCESS) { + switch (rc) { + case NRF_ERROR_BUSY: + return BLE_STACK_BUSY; + case NRF_ERROR_INVALID_PARAM: + default: + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } + } + + return BLE_ERROR_NONE; +} + +void nRF5xGap::getPermittedTxPowerValues(const int8_t **valueArrayPP, size_t *countP) +{ + static const int8_t permittedTxValues[] = { + -40, -30, -20, -16, -12, -8, -4, 0, 4 + }; + + *valueArrayPP = permittedTxValues; + *countP = sizeof(permittedTxValues) / sizeof(int8_t); +} + +/**************************************************************************/ +/*! + @brief Get the capacity of the internal whitelist maintained by this + implementation. + + @returns The capacity of the internal whitelist. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +uint8_t nRF5xGap::getMaxWhitelistSize(void) const +{ + return YOTTA_CFG_WHITELIST_MAX_SIZE; +} + +/**************************************************************************/ +/*! + @brief Get a copy of the implementation's internal whitelist. + + @param[out] whitelistOut + A \ref Gap::Whitelist_t structure containing a copy of the + addresses in the implemenetation's internal whitelist. + + @returns \ref ble_errror_t + + @retval BLE_ERROR_NONE + Everything executed properly. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::getWhitelist(Gap::Whitelist_t &whitelistOut) const +{ + uint8_t i; + for (i = 0; i < whitelistAddressesSize && i < whitelistOut.capacity; ++i) { + memcpy(&whitelistOut.addresses[i], &whitelistAddresses[i], sizeof(BLEProtocol::Address_t)); + } + whitelistOut.size = i; + + return BLE_ERROR_NONE; +} + +/**************************************************************************/ +/*! + @brief Set the whitelist that will be used in the next call to + startAdvertising(). + + @param[in] whitelistIn + A reference to a \ref Gap::Whitelist_t structure + representing a whitelist containing all the white listed + BLE addresses. + + @returns \ref ble_errror_t + + @retval BLE_ERROR_NONE + Everything executed properly. + + BLE_ERROR_INVALID_PARAM + The supplied whitelist contains a private non-resolvable + address + + BLE_ERROR_PARAM_OUT_OF_RANGE + The size of the supplied whitelist exceeds the maximum + capacity of the implementation's internal whitelist. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::setWhitelist(const Gap::Whitelist_t &whitelistIn) +{ + if (whitelistIn.size > getMaxWhitelistSize()) { + return BLE_ERROR_PARAM_OUT_OF_RANGE; + } + + /* Test for invalid parameters before we change the internal state */ + for (uint8_t i = 0; i < whitelistIn.size; ++i) { + if (whitelistIn.addresses[i].type == BLEProtocol::AddressType::RANDOM_PRIVATE_NON_RESOLVABLE) { + /* This is not allowed because it is completely meaningless */ + return BLE_ERROR_INVALID_PARAM; + } + } + + whitelistAddressesSize = 0; + for (uint8_t i = 0; i < whitelistIn.size; ++i) { + memcpy(&whitelistAddresses[whitelistAddressesSize], &whitelistIn.addresses[i], sizeof(BLEProtocol::Address_t)); + whitelistAddressesSize++; + } + + return BLE_ERROR_NONE; +} + +/**************************************************************************/ +/*! + @brief Set the advertising policy filter mode that will be used in + the next call to startAdvertising(). + + @returns \ref ble_errror_t + + @retval BLE_ERROR_NONE + Everything executed properly. + + BLE_ERROR_NOT_IMPLEMENTED + This feature is currently note implemented. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::setAdvertisingPolicyMode(Gap::AdvertisingPolicyMode_t mode) +{ + advertisingPolicyMode = mode; + + return BLE_ERROR_NONE; +} + +/**************************************************************************/ +/*! + @brief Set the scanning policy filter mode that will be used in + the next call to startAdvertising(). + + @returns \ref ble_errror_t + + @retval BLE_ERROR_NONE + Everything executed properly. + + BLE_ERROR_NOT_IMPLEMENTED + This feature is currently note implemented. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::setScanningPolicyMode(Gap::ScanningPolicyMode_t mode) +{ + scanningPolicyMode = mode; + + return BLE_ERROR_NONE; +} + +/**************************************************************************/ +/*! + @brief Set the initiator policy filter mode that will be used in + the next call to startAdvertising() + + @returns \ref ble_errror_t + + @retval BLE_ERROR_NONE + Everything executed properly. + + BLE_ERROR_NOT_IMPLEMENTED + This feature is currently note implemented. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::setInitiatorPolicyMode(Gap::InitiatorPolicyMode_t mode) +{ + return BLE_ERROR_NOT_IMPLEMENTED; +} + +/**************************************************************************/ +/*! + @brief Get the current advertising policy filter mode. + + @returns The advertising policy filter mode. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +Gap::AdvertisingPolicyMode_t nRF5xGap::getAdvertisingPolicyMode(void) const +{ + return advertisingPolicyMode; +} + +/**************************************************************************/ +/*! + @brief Get the current scanning policy filter mode. + + @returns The scanning policy filter mode. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +Gap::ScanningPolicyMode_t nRF5xGap::getScanningPolicyMode(void) const +{ + return scanningPolicyMode; +} + +/**************************************************************************/ +/*! + @brief Get the current initiator policy filter mode. + + @returns The initiator policy filter mode. + + @note Currently initiator filtering using the whitelist is not + implemented in this module. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +Gap::InitiatorPolicyMode_t nRF5xGap::getInitiatorPolicyMode(void) const +{ + return Gap::INIT_POLICY_IGNORE_WHITELIST; +} + +/**************************************************************************/ +/*! + @brief Helper function used to populate the ble_gap_whitelist_t that + will be used by the SoftDevice for filtering requests. + + @returns \ref ble_error_t + + @retval BLE_ERROR_NONE + Everything executed properly + + @retval BLE_ERROR_INVALID_STATE + The internal stack was not initialized correctly. + + @note Both the SecurityManager and Gap must initialize correctly for + this function to succeed. + + @note This function is needed because for the BLE API the whitelist + is just a collection of keys, but for the stack it also includes + the IRK table. + + @section EXAMPLE + + @code + + @endcode +*/ +/**************************************************************************/ +ble_error_t nRF5xGap::generateStackWhitelist(ble_gap_whitelist_t &whitelist) +{ + ble_gap_whitelist_t whitelistFromBondTable; + ble_gap_addr_t *addressPtr[1]; + ble_gap_irk_t *irkPtr[YOTTA_CFG_IRK_TABLE_MAX_SIZE]; + + nRF5xSecurityManager& securityManager = (nRF5xSecurityManager&) nRF5xn::Instance(0).getSecurityManager(); + + if (securityManager.hasInitialized()) { + /* We do not care about the addresses, set the count to 0 */ + whitelistFromBondTable.addr_count = 0; + /* The Nordic SDK will return a failure if we set pp_addr to NULL */ + whitelistFromBondTable.pp_addrs = addressPtr; + /* We want all the IRKs we can get because we do not know which ones match the addresses */ + whitelistFromBondTable.irk_count = YOTTA_CFG_IRK_TABLE_MAX_SIZE; + whitelistFromBondTable.pp_irks = irkPtr; + + /* Use the security manager to get the IRKs from the bond table */ + ble_error_t error = securityManager.createWhitelistFromBondTable(whitelistFromBondTable); + if (error != BLE_ERROR_NONE) { + return error; + } + } else { + /** + * If there is no security manager then we cannot access the bond table, + * so disable IRK matching + */ + whitelistFromBondTable.addr_count = 0; + whitelistFromBondTable.irk_count = 0; + } + + /** + * For every private resolvable address in the local whitelist check if + * there is an IRK for said address in the bond table and add it to the + * local IRK list. + */ + whitelist.irk_count = 0; + whitelist.addr_count = 0; + for (uint8_t i = 0; i < whitelistAddressesSize; ++i) { + if (whitelistAddresses[i].addr_type == BLEProtocol::AddressType::RANDOM_PRIVATE_RESOLVABLE) { + /* Test if there is a matching IRK for this private resolvable address */ + for (uint8_t j = 0; j < whitelistFromBondTable.irk_count; ++j) { + if (securityManager.matchAddressAndIrk(&whitelistAddresses[i], whitelistFromBondTable.pp_irks[j])) { + /* Found the corresponding IRK, add it to our local whitelist */ + whitelist.pp_irks[whitelist.irk_count] = whitelistFromBondTable.pp_irks[j]; + whitelist.irk_count++; + /* Make sure we do not look at this IRK again */ + if (j != whitelistFromBondTable.irk_count - 1) { + /** + * This is not the last IRK, so replace the pointer + * with the last pointer in the array + */ + whitelistFromBondTable.pp_irks[j] = + whitelistFromBondTable.pp_irks[whitelistFromBondTable.irk_count - 1]; + } + /** + * If the IRK is the last pointer in the array simply + * decrement the total IRK count + */ + whitelistFromBondTable.irk_count--; + break; + } + } + } else { + /* Include the address into the whitelist */ + whitelist.pp_addrs[whitelist.addr_count] = &whitelistAddresses[i]; + whitelist.addr_count++; + } + } + + return BLE_ERROR_NONE; +}