mirror of
https://github.com/h2zero/esp-nimble-cpp.git
synced 2024-12-23 11:30:45 +01:00
575 lines
18 KiB
C++
575 lines
18 KiB
C++
|
/*
|
||
|
* NimBLEAdvertisementData.cpp
|
||
|
*
|
||
|
* Created: on November 24, 2024
|
||
|
* Author H2zero
|
||
|
*
|
||
|
*/
|
||
|
|
||
|
#include "nimconfig.h"
|
||
|
#if (defined(CONFIG_BT_ENABLED) && defined(CONFIG_BT_NIMBLE_ROLE_BROADCASTER) && !CONFIG_BT_NIMBLE_EXT_ADV) || \
|
||
|
defined(_DOXYGEN_)
|
||
|
|
||
|
# include "NimBLEAdvertisementData.h"
|
||
|
# include "NimBLEDevice.h"
|
||
|
# include "NimBLEUtils.h"
|
||
|
# include "NimBLEUUID.h"
|
||
|
# include "NimBLELog.h"
|
||
|
|
||
|
# if defined(CONFIG_NIMBLE_CPP_IDF)
|
||
|
# include "host/ble_hs_adv.h"
|
||
|
# else
|
||
|
# include "nimble/nimble/host/include/host/ble_hs_adv.h"
|
||
|
# endif
|
||
|
|
||
|
static const char* LOG_TAG = "NimBLEAdvertisementData";
|
||
|
|
||
|
/**
|
||
|
* @brief Add data to the payload to be advertised.
|
||
|
* @param [in] data The data to be added to the payload.
|
||
|
* @param [in] length The size of data to be added to the payload.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::addData(const uint8_t* data, size_t length) {
|
||
|
if ((m_payload.size() + length) > BLE_HS_ADV_MAX_SZ) {
|
||
|
NIMBLE_LOGE(LOG_TAG, "Data length exceeded");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
m_payload.insert(m_payload.end(), data, data + length);
|
||
|
return true;
|
||
|
} // addData
|
||
|
|
||
|
/**
|
||
|
* @brief Add data to the payload to be advertised.
|
||
|
* @param [in] data The data to be added to the payload.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::addData(const std::vector<uint8_t>& data) {
|
||
|
return addData(&data[0], data.size());
|
||
|
} // addData
|
||
|
|
||
|
/**
|
||
|
* @brief Set the appearance.
|
||
|
* @param [in] appearance The appearance code value.
|
||
|
* @return True if successful.
|
||
|
* @details If the appearance value is 0 then it will be removed from the advertisement if set previously.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setAppearance(uint16_t appearance) {
|
||
|
if (appearance == 0) {
|
||
|
return removeData(BLE_HS_ADV_TYPE_APPEARANCE);
|
||
|
}
|
||
|
|
||
|
uint8_t data[4];
|
||
|
data[0] = 3;
|
||
|
data[1] = BLE_HS_ADV_TYPE_APPEARANCE;
|
||
|
data[2] = appearance;
|
||
|
data[3] = (appearance >> 8) & 0xFF;
|
||
|
return addData(data, 4);
|
||
|
} // setAppearance
|
||
|
|
||
|
/**
|
||
|
* @brief Set the advertisement flags.
|
||
|
* @param [in] flag The flags to be set in the advertisement.
|
||
|
* * BLE_HS_ADV_F_DISC_LTD
|
||
|
* * BLE_HS_ADV_F_DISC_GEN
|
||
|
* * BLE_HS_ADV_F_BREDR_UNSUP - must always use with NimBLE
|
||
|
* A flag value of 0 will remove the flags from the advertisement.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setFlags(uint8_t flag) {
|
||
|
int dataLoc = getDataLocation(BLE_HS_ADV_TYPE_FLAGS);
|
||
|
if (dataLoc != -1) {
|
||
|
if (flag) {
|
||
|
m_payload[dataLoc + 2] = flag | BLE_HS_ADV_F_BREDR_UNSUP;
|
||
|
return true;
|
||
|
} else {
|
||
|
return removeData(BLE_HS_ADV_TYPE_FLAGS);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
uint8_t data[3];
|
||
|
data[0] = 2;
|
||
|
data[1] = BLE_HS_ADV_TYPE_FLAGS;
|
||
|
data[2] = flag | BLE_HS_ADV_F_BREDR_UNSUP;
|
||
|
return addData(data, 3);
|
||
|
} // setFlags
|
||
|
|
||
|
/**
|
||
|
* @brief Adds Tx power level to the advertisement data.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::addTxPower() {
|
||
|
uint8_t data[3];
|
||
|
data[0] = BLE_HS_ADV_TX_PWR_LVL_LEN + 1;
|
||
|
data[1] = BLE_HS_ADV_TYPE_TX_PWR_LVL;
|
||
|
# ifndef CONFIG_IDF_TARGET_ESP32P4
|
||
|
data[2] = NimBLEDevice::getPower();
|
||
|
# else
|
||
|
data[2] = 0;
|
||
|
# endif
|
||
|
return addData(data, 3);
|
||
|
} // addTxPower
|
||
|
|
||
|
/**
|
||
|
* @brief Set the preferred min and max connection intervals to advertise.
|
||
|
* @param [in] minInterval The minimum preferred connection interval.
|
||
|
* @param [in] maxInterval The Maximum preferred connection interval.
|
||
|
* @details Range = 0x0006(7.5ms) to 0x0C80(4000ms), values not within the range will be limited to this range.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setPreferredParams(uint16_t minInterval, uint16_t maxInterval) {
|
||
|
minInterval = std::max<uint16_t>(minInterval, 0x6);
|
||
|
minInterval = std::min<uint16_t>(minInterval, 0xC80);
|
||
|
maxInterval = std::max<uint16_t>(maxInterval, 0x6);
|
||
|
maxInterval = std::min<uint16_t>(maxInterval, 0xC80);
|
||
|
maxInterval = std::max<uint16_t>(maxInterval, minInterval); // Max must be greater than or equal to min.
|
||
|
|
||
|
uint8_t data[6];
|
||
|
data[0] = BLE_HS_ADV_SLAVE_ITVL_RANGE_LEN + 1;
|
||
|
data[1] = BLE_HS_ADV_TYPE_SLAVE_ITVL_RANGE;
|
||
|
data[2] = minInterval;
|
||
|
data[3] = minInterval >> 8;
|
||
|
data[4] = maxInterval;
|
||
|
data[5] = maxInterval >> 8;
|
||
|
return addData(data, 6);
|
||
|
} // setPreferredParams
|
||
|
|
||
|
/**
|
||
|
* @brief Add a service uuid to exposed list of services.
|
||
|
* @param [in] serviceUUID The UUID of the service to expose.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::addServiceUUID(const NimBLEUUID& serviceUUID) {
|
||
|
uint8_t bytes = serviceUUID.bitSize() / 8;
|
||
|
int type;
|
||
|
switch (bytes) {
|
||
|
case 2:
|
||
|
type = BLE_HS_ADV_TYPE_COMP_UUIDS16;
|
||
|
break;
|
||
|
case 4:
|
||
|
type = BLE_HS_ADV_TYPE_COMP_UUIDS32;
|
||
|
break;
|
||
|
case 16:
|
||
|
type = BLE_HS_ADV_TYPE_COMP_UUIDS128;
|
||
|
break;
|
||
|
default:
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
int dataLoc = getDataLocation(type);
|
||
|
uint8_t length = bytes;
|
||
|
if (dataLoc == -1) {
|
||
|
length += 2;
|
||
|
}
|
||
|
|
||
|
if (length + getPayload().size() > BLE_HS_ADV_MAX_SZ) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
uint8_t data[31];
|
||
|
const uint8_t* uuid = serviceUUID.getValue();
|
||
|
if (dataLoc == -1) {
|
||
|
data[0] = 1 + bytes;
|
||
|
data[1] = type;
|
||
|
memcpy(&data[2], uuid, bytes);
|
||
|
return addData(data, length);
|
||
|
}
|
||
|
|
||
|
m_payload.insert(m_payload.begin() + dataLoc + m_payload[dataLoc] + 1, uuid, uuid + bytes);
|
||
|
m_payload[dataLoc] += bytes;
|
||
|
return true;
|
||
|
} // addServiceUUID
|
||
|
|
||
|
/**
|
||
|
* @brief Add a service uuid to exposed list of services.
|
||
|
* @param [in] serviceUUID The string representation of the service to expose.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::addServiceUUID(const char* serviceUUID) {
|
||
|
return addServiceUUID(NimBLEUUID(serviceUUID));
|
||
|
} // addServiceUUID
|
||
|
|
||
|
/**
|
||
|
* @brief Remove a service UUID from the advertisement.
|
||
|
* @param [in] serviceUUID The UUID of the service to remove.
|
||
|
* @return True if successful or uuid not found, false if uuid error or data could not be reset.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::removeServiceUUID(const NimBLEUUID& serviceUUID) {
|
||
|
uint8_t bytes = serviceUUID.bitSize() / 8;
|
||
|
int type;
|
||
|
switch (bytes) {
|
||
|
case 2:
|
||
|
type = BLE_HS_ADV_TYPE_COMP_UUIDS16;
|
||
|
break;
|
||
|
case 4:
|
||
|
type = BLE_HS_ADV_TYPE_COMP_UUIDS32;
|
||
|
break;
|
||
|
case 16:
|
||
|
type = BLE_HS_ADV_TYPE_COMP_UUIDS128;
|
||
|
break;
|
||
|
default:
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
int dataLoc = getDataLocation(type);
|
||
|
if (dataLoc == -1) {
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
int uuidLoc = -1;
|
||
|
for (int i = dataLoc + 2; i < m_payload.size(); i += bytes) {
|
||
|
if (memcmp(&m_payload[i], serviceUUID.getValue(), bytes) == 0) {
|
||
|
uuidLoc = i;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (uuidLoc == -1) {
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
if (m_payload[dataLoc] - bytes == 1) {
|
||
|
return removeData(type);
|
||
|
}
|
||
|
|
||
|
m_payload.erase(m_payload.begin() + uuidLoc, m_payload.begin() + uuidLoc + bytes);
|
||
|
m_payload[dataLoc] -= bytes;
|
||
|
return true;
|
||
|
} // removeServiceUUID
|
||
|
|
||
|
/**
|
||
|
* @brief Remove a service UUID from the advertisement.
|
||
|
* @param [in] serviceUUID The UUID of the service to remove.
|
||
|
* @return True if successful or uuid not found, false if uuid error or data could not be reset.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::removeServiceUUID(const char* serviceUUID) {
|
||
|
return removeServiceUUID(NimBLEUUID(serviceUUID));
|
||
|
} // removeServiceUUID
|
||
|
|
||
|
/**
|
||
|
* @brief Remove all service UUIDs from the advertisement.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::removeServices() {
|
||
|
return true;
|
||
|
} // removeServices
|
||
|
|
||
|
/**
|
||
|
* @brief Set manufacturer specific data.
|
||
|
* @param [in] data The manufacturer data to advertise.
|
||
|
* @param [in] length The length of the data.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setManufacturerData(const uint8_t* data, size_t length) {
|
||
|
if (length > 29) {
|
||
|
NIMBLE_LOGE(LOG_TAG, "MFG data too long");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
uint8_t mdata[31];
|
||
|
mdata[0] = length + 1;
|
||
|
mdata[1] = BLE_HS_ADV_TYPE_MFG_DATA;
|
||
|
memcpy(&mdata[2], data, length);
|
||
|
return addData(mdata, length + 2);
|
||
|
} // setManufacturerData
|
||
|
|
||
|
/**
|
||
|
* @brief Set manufacturer specific data.
|
||
|
* @param [in] data The manufacturer data to advertise.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setManufacturerData(const std::string& data) {
|
||
|
return setManufacturerData(reinterpret_cast<const uint8_t*>(data.data()), data.length());
|
||
|
} // setManufacturerData
|
||
|
|
||
|
/**
|
||
|
* @brief Set manufacturer specific data.
|
||
|
* @param [in] data The manufacturer data to advertise.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setManufacturerData(const std::vector<uint8_t>& data) {
|
||
|
return setManufacturerData(&data[0], data.size());
|
||
|
} // setManufacturerData
|
||
|
|
||
|
/**
|
||
|
* @brief Set the URI to advertise.
|
||
|
* @param [in] uri The uri to advertise.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setURI(const std::string& uri) {
|
||
|
if (uri.length() > 29) {
|
||
|
NIMBLE_LOGE(LOG_TAG, "URI too long");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
uint8_t data[31];
|
||
|
uint8_t length = 2 + uri.length();
|
||
|
data[0] = length - 1;
|
||
|
data[1] = BLE_HS_ADV_TYPE_URI;
|
||
|
memcpy(&data[2], uri.c_str(), uri.length());
|
||
|
return addData(data, length);
|
||
|
} // setURI
|
||
|
|
||
|
/**
|
||
|
* @brief Set the complete name of this device.
|
||
|
* @param [in] name The name to advertise.
|
||
|
* @param [in] isComplete If true the name is complete, which will set the data type accordingly.
|
||
|
* @details If the name is longer than 29 characters it will be truncated.
|
||
|
* and the data type will be set to incomplete name.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setName(const std::string& name, bool isComplete) {
|
||
|
if (name.length() > 29) {
|
||
|
NIMBLE_LOGE(LOG_TAG, "Name too long - truncating");
|
||
|
isComplete = false;
|
||
|
}
|
||
|
|
||
|
uint8_t data[31];
|
||
|
uint8_t length = 2 + std::min<uint8_t>(name.length(), 29);
|
||
|
data[0] = length - 1;
|
||
|
data[1] = isComplete ? BLE_HS_ADV_TYPE_COMP_NAME : BLE_HS_ADV_TYPE_INCOMP_NAME;
|
||
|
memcpy(&data[2], name.c_str(), std::min<uint8_t>(name.length(), 29));
|
||
|
return addData(data, length);
|
||
|
} // setName
|
||
|
|
||
|
/**
|
||
|
* @brief Set the short name.
|
||
|
* @param [in] name The short name of the device.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setShortName(const std::string& name) {
|
||
|
return setName(name, false);
|
||
|
} // setShortName
|
||
|
|
||
|
/**
|
||
|
* @brief Set a single service to advertise as a complete list of services.
|
||
|
* @param [in] uuid The service to advertise.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setCompleteServices(const NimBLEUUID& uuid) {
|
||
|
return setServices(true, uuid.bitSize(), {uuid});
|
||
|
} // setCompleteServices
|
||
|
|
||
|
/**
|
||
|
* @brief Set the complete list of 16 bit services to advertise.
|
||
|
* @param [in] uuids A vector of 16 bit UUID's to advertise.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setCompleteServices16(const std::vector<NimBLEUUID>& uuids) {
|
||
|
return setServices(true, 16, uuids);
|
||
|
} // setCompleteServices16
|
||
|
|
||
|
/**
|
||
|
* @brief Set the complete list of 32 bit services to advertise.
|
||
|
* @param [in] uuids A vector of 32 bit UUID's to advertise.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setCompleteServices32(const std::vector<NimBLEUUID>& uuids) {
|
||
|
return setServices(true, 32, uuids);
|
||
|
} // setCompleteServices32
|
||
|
|
||
|
/**
|
||
|
* @brief Set a single service to advertise as a partial list of services.
|
||
|
* @param [in] uuid The service to advertise.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setPartialServices(const NimBLEUUID& uuid) {
|
||
|
return setServices(false, uuid.bitSize(), {uuid});
|
||
|
} // setPartialServices
|
||
|
|
||
|
/**
|
||
|
* @brief Set the partial list of services to advertise.
|
||
|
* @param [in] uuids A vector of 16 bit UUID's to advertise.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setPartialServices16(const std::vector<NimBLEUUID>& uuids) {
|
||
|
return setServices(false, 16, uuids);
|
||
|
} // setPartialServices16
|
||
|
|
||
|
/**
|
||
|
* @brief Set the partial list of services to advertise.
|
||
|
* @param [in] uuids A vector of 32 bit UUID's to advertise.
|
||
|
* @return True if successful.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setPartialServices32(const std::vector<NimBLEUUID>& uuids) {
|
||
|
return setServices(false, 32, uuids);
|
||
|
} // setPartialServices32
|
||
|
|
||
|
/**
|
||
|
* @brief Utility function to create the list of service UUID's from a vector.
|
||
|
* @param [in] complete If true the vector is the complete set of services.
|
||
|
* @param [in] size The bit size of the UUID's in the vector. (16, 32, or 128).
|
||
|
* @param [in] uuids The vector of service UUID's to advertise.
|
||
|
* @return True if successful.
|
||
|
* @details The number of services will be truncated if the total length exceeds 31 bytes.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setServices(bool complete, uint8_t size, const std::vector<NimBLEUUID>& uuids) {
|
||
|
uint8_t bytes = size / 8;
|
||
|
uint8_t length = 2; // start with 2 for length + type bytes
|
||
|
uint8_t data[31];
|
||
|
|
||
|
for (const auto& uuid : uuids) {
|
||
|
if (uuid.bitSize() != size) {
|
||
|
NIMBLE_LOGE(LOG_TAG, "Service UUID(%d) invalid", size);
|
||
|
continue;
|
||
|
} else {
|
||
|
if (length + bytes >= 31) {
|
||
|
NIMBLE_LOGW(LOG_TAG, "Too many services - truncating");
|
||
|
complete = false;
|
||
|
break;
|
||
|
}
|
||
|
memcpy(&data[length], uuid.getValue(), bytes);
|
||
|
length += bytes;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
data[0] = length - 1; // don't count the length byte as part of the AD length
|
||
|
|
||
|
switch (size) {
|
||
|
case 16:
|
||
|
data[1] = (complete ? BLE_HS_ADV_TYPE_COMP_UUIDS16 : BLE_HS_ADV_TYPE_INCOMP_UUIDS16);
|
||
|
break;
|
||
|
case 32:
|
||
|
data[1] = (complete ? BLE_HS_ADV_TYPE_COMP_UUIDS32 : BLE_HS_ADV_TYPE_INCOMP_UUIDS32);
|
||
|
break;
|
||
|
case 128:
|
||
|
data[1] = (complete ? BLE_HS_ADV_TYPE_COMP_UUIDS128 : BLE_HS_ADV_TYPE_INCOMP_UUIDS128);
|
||
|
break;
|
||
|
default:
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
return addData(data, length);
|
||
|
} // setServices
|
||
|
|
||
|
/**
|
||
|
* @brief Set the service data advertised for the UUID.
|
||
|
* @param [in] uuid The UUID the service data belongs to.
|
||
|
* @param [in] data The data to advertise.
|
||
|
* @param [in] length The length of the data.
|
||
|
* @note If data length is 0 the service data will not be advertised.
|
||
|
* @return True if successful, false if data length is too long or could not be set.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setServiceData(const NimBLEUUID& uuid, const uint8_t* data, size_t length) {
|
||
|
uint8_t uuidBytes = uuid.bitSize() / 8;
|
||
|
uint8_t sDataLen = 2 + uuidBytes + length;
|
||
|
if (sDataLen > 31) {
|
||
|
NIMBLE_LOGE(LOG_TAG, "Service Data too long");
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
uint8_t type;
|
||
|
switch (uuidBytes) {
|
||
|
case 2:
|
||
|
type = BLE_HS_ADV_TYPE_SVC_DATA_UUID16;
|
||
|
break;
|
||
|
case 4:
|
||
|
type = BLE_HS_ADV_TYPE_SVC_DATA_UUID32;
|
||
|
break;
|
||
|
case 16:
|
||
|
type = BLE_HS_ADV_TYPE_SVC_DATA_UUID128;
|
||
|
break;
|
||
|
default:
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
if (length == 0) {
|
||
|
removeData(type);
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
uint8_t sData[31];
|
||
|
sData[0] = uuidBytes + length + 1;
|
||
|
sData[1] = type;
|
||
|
memcpy(&sData[2], uuid.getValue(), uuidBytes);
|
||
|
memcpy(&sData[2 + uuidBytes], data, length);
|
||
|
return addData(sData, sDataLen);
|
||
|
} // setServiceData
|
||
|
|
||
|
/**
|
||
|
* @brief Set the service data (UUID + data)
|
||
|
* @param [in] uuid The UUID to set with the service data.
|
||
|
* @param [in] data The data to be associated with the service data advertised.
|
||
|
* @return True if the service data was set successfully.
|
||
|
* @note If data length is 0 the service data will not be advertised.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setServiceData(const NimBLEUUID& uuid, const std::string& data) {
|
||
|
return setServiceData(uuid, reinterpret_cast<const uint8_t*>(data.data()), data.length());
|
||
|
} // setServiceData
|
||
|
|
||
|
/**
|
||
|
* @brief Set the service data advertised for the UUID.
|
||
|
* @param [in] uuid The UUID the service data belongs to.
|
||
|
* @param [in] data The data to advertise.
|
||
|
* @return True if the service data was set successfully.
|
||
|
* @note If data length is 0 the service data will not be advertised.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::setServiceData(const NimBLEUUID& uuid, const std::vector<uint8_t>& data) {
|
||
|
return setServiceData(uuid, &data[0], data.size());
|
||
|
} // setServiceData
|
||
|
|
||
|
/**
|
||
|
* @brief Get the location of the data in the payload.
|
||
|
* @param [in] type The type of data to search for.
|
||
|
* @return -1 if the data is not found, otherwise the index of the data in the payload.
|
||
|
*/
|
||
|
int NimBLEAdvertisementData::getDataLocation(uint8_t type) const {
|
||
|
int index = 0;
|
||
|
while (index < m_payload.size()) {
|
||
|
if (m_payload[index + 1] == type) {
|
||
|
return index;
|
||
|
}
|
||
|
index += m_payload[index] + 1;
|
||
|
}
|
||
|
return -1;
|
||
|
} // getDataLocation
|
||
|
|
||
|
/**
|
||
|
* @brief Remove data from the advertisement data.
|
||
|
* @param [in] type The type of data to remove.
|
||
|
* @return True if successful, false if the data was not found.
|
||
|
*/
|
||
|
bool NimBLEAdvertisementData::removeData(uint8_t type) {
|
||
|
int dataLoc = getDataLocation(type);
|
||
|
if (dataLoc != -1) {
|
||
|
std::vector<uint8_t> swap(m_payload.begin(), m_payload.begin() + dataLoc);
|
||
|
int nextData = dataLoc + m_payload[dataLoc] + 1;
|
||
|
swap.insert(swap.end(), m_payload.begin() + nextData, m_payload.end());
|
||
|
swap.swap(m_payload);
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
return false;
|
||
|
} // removeData
|
||
|
|
||
|
/**
|
||
|
* @brief Retrieve the payload that is to be advertised.
|
||
|
* @return The payload of the advertisement data.
|
||
|
*/
|
||
|
std::vector<uint8_t> NimBLEAdvertisementData::getPayload() const {
|
||
|
return m_payload;
|
||
|
} // getPayload
|
||
|
|
||
|
/**
|
||
|
* @brief Clear the advertisement data for reuse.
|
||
|
*/
|
||
|
void NimBLEAdvertisementData::clearData() {
|
||
|
std::vector<uint8_t>().swap(m_payload);
|
||
|
} // clearData
|
||
|
|
||
|
/**
|
||
|
* @brief Get the string representation of the advertisement data.
|
||
|
* @return The string representation of the advertisement data.
|
||
|
*/
|
||
|
std::string NimBLEAdvertisementData::toString() const {
|
||
|
std::string hexStr = NimBLEUtils::dataToHexString(&m_payload[0], m_payload.size());
|
||
|
std::string str;
|
||
|
for (size_t i = 0; i < hexStr.length(); i += 2) {
|
||
|
str += hexStr[i];
|
||
|
str += hexStr[i + 1];
|
||
|
if (i + 2 < hexStr.length()) {
|
||
|
str += " ";
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return str;
|
||
|
} // toString
|
||
|
|
||
|
#endif // CONFIG_BT_ENABLED && CONFIG_BT_NIMBLE_ROLE_BROADCASTER && !CONFIG_BT_NIMBLE_EXT_ADV
|