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Add option to use resolvable and non-resolvable private address.

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Adds the possibility to configure a resolvable or non-resolvable address (BLE privacy).
This commit is contained in:
Asuki Kono 2021-01-13 18:00:48 -07:00 committed by h2zero
parent 57ba0e583d
commit f61bd5c2df
6 changed files with 36 additions and 6 deletions
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4
src/NimBLEAdvertising.cpp
View file

@ -476,12 +476,12 @@ void NimBLEAdvertising::start(uint32_t duration, void (*advCompleteCB)(NimBLEAdv
}
#if defined(CONFIG_BT_NIMBLE_ROLE_PERIPHERAL)
rc = ble_gap_adv_start(0, NULL, duration,
rc = ble_gap_adv_start(NimBLEDevice::m_own_addr_type, NULL, duration,
&m_advParams,
(pServer != nullptr) ? NimBLEServer::handleGapEvent : NimBLEAdvertising::handleGapEvent,
(pServer != nullptr) ? (void*)pServer : (void*)this);
#else
rc = ble_gap_adv_start(0, NULL, duration,
rc = ble_gap_adv_start(NimBLEDevice::m_own_addr_type, NULL, duration,
&m_advParams, NimBLEAdvertising::handleGapEvent, this);
#endif
if (rc != 0) {

2
src/NimBLEClient.cpp
View file

@ -208,7 +208,7 @@ bool NimBLEClient::connect(const NimBLEAddress &address, bool deleteAttibutes) {
* Loop on BLE_HS_EBUSY if the scan hasn't stopped yet.
*/
do {
rc = ble_gap_connect(BLE_OWN_ADDR_PUBLIC, &peerAddr_t,
rc = ble_gap_connect(NimBLEDevice::m_own_addr_type, &peerAddr_t,
m_connectTimeout, &m_pConnParams,
NimBLEClient::handleGapEvent, this);
switch (rc) {

30
src/NimBLEDevice.cpp
View file

@ -25,6 +25,7 @@
#include "nimble/nimble_port.h"
#include "nimble/nimble_port_freertos.h"
#include "host/ble_hs.h"
#include "host/ble_hs_pvcy.h"
#include "host/util/util.h"
#include "services/gap/ble_svc_gap.h"
#include "services/gatt/ble_svc_gatt.h"
@ -60,6 +61,7 @@ std::list <NimBLEClient*> NimBLEDevice::m_cList;
#endif
std::list <NimBLEAddress> NimBLEDevice::m_ignoreList;
NimBLESecurityCallbacks* NimBLEDevice::m_securityCallbacks = nullptr;
uint8_t NimBLEDevice::m_own_addr_type = BLE_OWN_ADDR_PUBLIC;
/**
@ -698,6 +700,34 @@ void NimBLEDevice::setSecurityCallbacks(NimBLESecurityCallbacks* callbacks) {
} // setSecurityCallbacks
/**
* @brief Set the own address type.
* @param own_addr_type Own Bluetooth Device address type.\n
* The available bits are defined as:
* * 0x00: BLE_OWN_ADDR_PUBLIC
* * 0x01: BLE_OWN_ADDR_RANDOM
* * 0x02: BLE_OWN_ADDR_RPA_PUBLIC_DEFAULT
* * 0x03: BLE_OWN_ADDR_RPA_RANDOM_DEFAULT
*/
void NimBLEDevice::setOwnAddrType(uint8_t own_addr_type, bool useNRPA) {
m_own_addr_type = own_addr_type;
switch (own_addr_type) {
case BLE_OWN_ADDR_PUBLIC:
ble_hs_pvcy_rpa_config(NIMBLE_HOST_DISABLE_PRIVACY);
break;
case BLE_OWN_ADDR_RANDOM:
setSecurityInitKey(BLE_SM_PAIR_KEY_DIST_ENC | BLE_SM_PAIR_KEY_DIST_ID);
ble_hs_pvcy_rpa_config(useNRPA ? NIMBLE_HOST_ENABLE_NRPA : NIMBLE_HOST_ENABLE_RPA);
break;
case BLE_OWN_ADDR_RPA_PUBLIC_DEFAULT:
case BLE_OWN_ADDR_RPA_RANDOM_DEFAULT:
setSecurityInitKey(BLE_SM_PAIR_KEY_DIST_ENC | BLE_SM_PAIR_KEY_DIST_ID);
ble_hs_pvcy_rpa_config(NIMBLE_HOST_ENABLE_RPA);
break;
}
} // setOwnAddrType
/**
* @brief Start the connection securing and authorization for this connection.
* @param conn_id The connection id of the peer device.

2
src/NimBLEDevice.h
View file

@ -116,6 +116,7 @@ public:
static void setSecurityPasskey(uint32_t pin);
static uint32_t getSecurityPasskey();
static void setSecurityCallbacks(NimBLESecurityCallbacks* pCallbacks);
static void setOwnAddrType(uint8_t own_addr_type, bool useNRPA=false);
static int startSecurity(uint16_t conn_id);
static int setMTU(uint16_t mtu);
static uint16_t getMTU();
@ -182,6 +183,7 @@ private:
static uint32_t m_passkey;
static ble_gap_event_listener m_listener;
static gap_event_handler m_customGapHandler;
static uint8_t m_own_addr_type;
};

3
src/NimBLEScan.cpp
View file

@ -30,7 +30,6 @@ static const char* LOG_TAG = "NimBLEScan";
* @brief Scan constuctor.
*/
NimBLEScan::NimBLEScan() {
m_own_addr_type = 0;
m_scan_params.filter_policy = BLE_HCI_SCAN_FILT_NO_WL;
m_scan_params.passive = 1; // If set, don’t send scan requests to advertisers (i.e., don’t request additional advertising data).
m_scan_params.itvl = 0; // This is defined as the time interval from when the Controller started its last LE scan until it begins the subsequent LE scan. (units=0.625 msec)
@ -271,7 +270,7 @@ bool NimBLEScan::start(uint32_t duration, void (*scanCompleteCB)(NimBLEScanResul
m_ignoreResults = true;
}
int rc = ble_gap_disc(m_own_addr_type, duration, &m_scan_params,
int rc = ble_gap_disc(NimBLEDevice::m_own_addr_type, duration, &m_scan_params,
NimBLEScan::handleGapEvent, this);
switch(rc) {

1
src/NimBLEScan.h
View file

@ -88,7 +88,6 @@ private:
NimBLEAdvertisedDeviceCallbacks* m_pAdvertisedDeviceCallbacks = nullptr;
void (*m_scanCompleteCB)(NimBLEScanResults scanResults);
ble_gap_disc_params m_scan_params;
uint8_t m_own_addr_type;
bool m_ignoreResults;
bool m_wantDuplicates;
NimBLEScanResults m_scanResults;