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hci: add hci_le_random_address_set to set random address. Advertisements are restarted if random address is used for advertising

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This commit is contained in:
Matthias Ringwald 2021-10-05 11:03:54 +02:00
parent 8d5f0979ab
commit 9136bde860
2 changed files with 27 additions and 2 deletions
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23
src/hci.c
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@ -4233,6 +4233,9 @@ static bool hci_run_general_gap_le(void){
UNUSED(advertising_stop);
#endif
// check if own address changes
bool random_address_change = (hci_stack->le_advertisements_todo & LE_ADVERTISEMENT_TASKS_SET_ADDRESS) != 0;
// check if whitelist needs modification
bool whitelist_modification_pending = false;
btstack_linked_list_iterator_t lit;
@ -4300,14 +4303,17 @@ static bool hci_run_general_gap_le(void){
if (hci_stack->le_advertisements_active){
// stop if:
// - parameter change required
// - random address used in advertising and changes
// - it's disabled
// - whitelist change required but used for advertisement filter policy
// - resolving list modified
bool advertising_uses_whitelist = hci_stack->le_advertisements_filter_policy != 0;
bool advertising_change = (hci_stack->le_advertisements_todo & LE_ADVERTISEMENT_TASKS_SET_PARAMS) != 0;
bool advertising_uses_random_address = hci_stack->le_own_addr_type != BD_ADDR_TYPE_LE_PUBLIC;
bool advertising_change = (hci_stack->le_advertisements_todo & LE_ADVERTISEMENT_TASKS_SET_PARAMS) != 0;
if (advertising_change ||
(advertising_uses_random_address && random_address_change) ||
(hci_stack->le_advertisements_enabled_for_current_roles == 0) ||
(advertising_uses_whitelist & whitelist_modification_pending) ||
(advertising_uses_whitelist && whitelist_modification_pending) ||
resolving_list_modification_pending) {
advertising_stop = true;
@ -4343,6 +4349,12 @@ static bool hci_run_general_gap_le(void){
// Phase 3: modify
if (random_address_change){
hci_stack->le_advertisements_todo &= ~LE_ADVERTISEMENT_TASKS_SET_ADDRESS;
hci_send_cmd(&hci_le_set_random_address, hci_stack->le_random_address);
return true;
}
#ifdef ENABLE_LE_CENTRAL
if (hci_stack->le_scanning_param_update){
hci_stack->le_scanning_param_update = false;
@ -6051,6 +6063,13 @@ void hci_le_set_own_address_type(uint8_t own_address_type){
#endif
}
void hci_le_random_address_set(const bd_addr_t random_address){
memcpy(hci_stack->le_random_address, random_address, 6);
hci_stack->le_random_address_set = true;
hci_stack->le_advertisements_todo |= LE_ADVERTISEMENT_TASKS_SET_ADDRESS;
hci_run();
}
#endif
uint8_t gap_disconnect(hci_con_handle_t handle){

6
src/hci.h
View File

@ -787,6 +787,7 @@ enum {
LE_ADVERTISEMENT_TASKS_SET_ADV_DATA = 1 << 0,
LE_ADVERTISEMENT_TASKS_SET_SCAN_DATA = 1 << 1,
LE_ADVERTISEMENT_TASKS_SET_PARAMS = 1 << 2,
LE_ADVERTISEMENT_TASKS_SET_ADDRESS = 1 << 3,
// State
LE_ADVERTISEMENT_TASKS_PARAMS_SET = 1 << 7,
};
@ -1405,6 +1406,11 @@ void hci_le_advertisements_set_params(uint16_t adv_int_min, uint16_t adv_int_max
*/
void hci_le_set_own_address_type(uint8_t own_address_type);
/**
* @naote internal use. use gap_random_address_set from gap.h instead
*/
void hci_le_random_address_set(const bd_addr_t random_address);
/**
* @note internal use by sm
*/