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l2cap: send command reject with invalid cid for configure request on closed channel

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This commit is contained in:
Matthias Ringwald 2023-12-12 16:56:39 +01:00
parent 8c4cc1b869
commit 1f0786fdf5
1 changed files with 11 additions and 2 deletions
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13
src/l2cap.c
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@ -1883,8 +1883,8 @@ static void l2cap_run_signaling_response(void) {
uint8_t sig_id = l2cap_signaling_responses[0].sig_id;
uint8_t response_code = l2cap_signaling_responses[0].code;
uint16_t result = l2cap_signaling_responses[0].data; // CONNECTION_REQUEST, COMMAND_REJECT, REJECT_SM_PAIRING, L2CAP_CREDIT_BASED_CONNECTION_REQUEST
uint8_t buffer[4]; // REJECT_SM_PAIRING
uint16_t source_cid = l2cap_signaling_responses[0].cid; // CONNECTION_REQUEST, REJECT_SM_PAIRING, DISCONNECT_REQUEST
uint8_t buffer[4]; // REJECT_SM_PAIRING, CONFIGURE_REQUEST
uint16_t source_cid = l2cap_signaling_responses[0].cid; // CONNECTION_REQUEST, REJECT_SM_PAIRING, DISCONNECT_REQUEST, CONFIGURE_REQUEST
#ifdef ENABLE_CLASSIC
uint16_t info_type = l2cap_signaling_responses[0].data; // INFORMATION_REQUEST
#endif
@ -1907,6 +1907,11 @@ static void l2cap_run_signaling_response(void) {
case CONNECTION_REQUEST:
l2cap_send_classic_signaling_packet(handle, CONNECTION_RESPONSE, sig_id, source_cid, 0, result, 0);
break;
case CONFIGURE_REQUEST:
little_endian_store_16(buffer, 0, source_cid);
little_endian_store_16(buffer, 2, 0);
l2cap_send_classic_signaling_packet(handle, COMMAND_REJECT, sig_id, result, 4, buffer);
break;
case ECHO_REQUEST:
l2cap_send_classic_signaling_packet(handle, ECHO_RESPONSE, sig_id, 0, NULL);
break;
@ -3774,6 +3779,10 @@ static void l2cap_signaling_handler_dispatch(hci_con_handle_t handle, uint8_t *
case DISCONNECTION_RESPONSE:
// Ignore request
break;
case CONFIGURE_REQUEST:
// send command reject with reason invalid cid
l2cap_register_signaling_response(handle, CONFIGURE_REQUEST, sig_id, dest_cid, L2CAP_REJ_INVALID_CID);
break;
default:
// send command reject with reason unknown command
l2cap_register_signaling_response(handle, COMMAND_REJECT, sig_id, 0, L2CAP_REJ_CMD_UNKNOWN);