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use sm_peer_address/addr_type for receiving keys and use local addrress/addr_type directly from hci

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matthias.ringwald 2014-06-14 20:45:50 +00:00
parent cb7e8bd038
commit afb65a03fb
1 changed files with 12 additions and 11 deletions
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23
ble/sm.c
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@ -298,6 +298,7 @@ typedef struct sm_setup_context {
sm_key_t sm_local_ltk;
sm_key_t sm_local_csrk;
sm_key_t sm_local_irk;
// sm_local_address/addr_type not needed
// peer
sm_key_t sm_peer_random;
@ -311,6 +312,8 @@ typedef struct sm_setup_context {
sm_key_t sm_peer_ltk;
sm_key_t sm_peer_csrk;
sm_key_t sm_peer_irk;
uint8_t sm_peer_addr_type;
bd_addr_t sm_peer_address;
// master
sm_pairing_packet_t sm_m_preq; // pairing request
@ -1171,10 +1174,11 @@ static void sm_run(void){
}
if (setup->sm_key_distribution_send_set & SM_KEYDIST_FLAG_IDENTITY_ADDRESS_INFORMATION){
setup->sm_key_distribution_send_set &= ~SM_KEYDIST_FLAG_IDENTITY_ADDRESS_INFORMATION;
bd_addr_t local_address;
uint8_t buffer[8];
buffer[0] = SM_CODE_IDENTITY_ADDRESS_INFORMATION;
buffer[1] = setup->sm_s_addr_type;
bt_flip_addr(&buffer[2], setup->sm_s_address);
hci_le_advertisement_address(&buffer[1], &local_address);
bt_flip_addr(&buffer[2], local_address);
l2cap_send_connectionless(connection->sm_handle, L2CAP_CID_SECURITY_MANAGER_PROTOCOL, (uint8_t*) buffer, sizeof(buffer));
sm_2timeout_reset();
return;
@ -1183,8 +1187,7 @@ static void sm_run(void){
setup->sm_key_distribution_send_set &= ~SM_KEYDIST_FLAG_SIGNING_IDENTIFICATION;
uint8_t buffer[17];
buffer[0] = SM_CODE_SIGNING_INFORMATION;
// swap128(sm_local_csrk, &buffer[1]);
memset(&buffer[1], 0, 16); // csrk not calculated
swap128(setup->sm_local_csrk, &buffer[1]);
l2cap_send_connectionless(connection->sm_handle, L2CAP_CID_SECURITY_MANAGER_PROTOCOL, (uint8_t*) buffer, sizeof(buffer));
sm_2timeout_reset();
return;
@ -1193,7 +1196,7 @@ static void sm_run(void){
// keys are sent
if (connection->sm_role){
// slave -> receive master keys
connection->sm_state_responding = SM_STATE_IDLE;
connection->sm_state_responding = SM_STATE_RECEIVE_KEYS;
} else {
// master -> all done
sm_2timeout_stop();
@ -1841,10 +1844,8 @@ static void sm_packet_handler(uint8_t packet_type, uint16_t handle, uint8_t *pac
case SM_CODE_IDENTITY_ADDRESS_INFORMATION:
setup->sm_key_distribution_received_set |= SM_KEYDIST_FLAG_IDENTITY_ADDRESS_INFORMATION;
// note: we don't update addr_type and address as higher layer would get confused
// note: if needed, we could use a different variable pair
// setup->sm_m_addr_type = packet[1];
// BD_ADDR_COPY(setup->sm_m_address, &packet[2]);
setup->sm_peer_addr_type = packet[1];
BD_ADDR_COPY(setup->sm_peer_address, &packet[2]);
break;
case SM_CODE_SIGNING_INFORMATION:
@ -1852,8 +1853,8 @@ static void sm_packet_handler(uint8_t packet_type, uint16_t handle, uint8_t *pac
swap128(&packet[1], setup->sm_peer_csrk);
// store, if: it's a public address, or, we got an IRK
if (setup->sm_m_addr_type == 0 || (setup->sm_key_distribution_received_set & SM_KEYDIST_FLAG_IDENTITY_INFORMATION)) {
sm_central_device_matched = central_device_db_add(setup->sm_m_addr_type, setup->sm_m_address, setup->sm_peer_irk, setup->sm_peer_csrk);
if (setup->sm_peer_addr_type == 0 || (setup->sm_key_distribution_received_set & SM_KEYDIST_FLAG_IDENTITY_INFORMATION)) {
sm_central_device_matched = central_device_db_add(setup->sm_peer_addr_type, setup->sm_peer_address, setup->sm_peer_irk, setup->sm_peer_csrk);
break;
}
break;