/******************************************************************************* ** ** Function gatt_sec_check_complete ** ** Description security check complete and proceed to data sending action. ** ** Returns void. ** *******************************************************************************/ void gatt_sec_check_complete(BOOLEAN sec_check_ok, tGATT_CLCB *p_clcb, UINT8 sec_act) { if (p_clcb && p_clcb->p_tcb && GKI_queue_is_empty(&p_clcb->p_tcb->pending_enc_clcb)) { gatt_set_sec_act(p_clcb->p_tcb, GATT_SEC_NONE); } #if (GATTC_INCLUDED == TRUE) if (!sec_check_ok) { gatt_end_operation(p_clcb, GATT_AUTH_FAIL, NULL); } else if (p_clcb->operation == GATTC_OPTYPE_WRITE) { gatt_act_write(p_clcb, sec_act); } else if (p_clcb->operation == GATTC_OPTYPE_READ) { gatt_act_read(p_clcb, p_clcb->counter); } #endif ///GATTC_INCLUDED == TRUE }
/******************************************************************************* ** ** Function gatt_sign_data ** ** Description This function sign the data for write command. ** ** Returns TRUE if encrypted, otherwise FALSE. ** *******************************************************************************/ static BOOLEAN gatt_sign_data (tGATT_CLCB *p_clcb) { tGATT_VALUE *p_attr = (tGATT_VALUE *)p_clcb->p_attr_buf; UINT8 *p_data = NULL, *p; UINT16 payload_size = p_clcb->p_tcb->payload_size; BOOLEAN status = FALSE; UINT8 *p_signature; /* do not need to mark channel securoty activity for data signing */ gatt_set_sec_act(p_clcb->p_tcb, GATT_SEC_OK); p_data = (UINT8 *)GKI_getbuf((UINT16)(p_attr->len + 3)); /* 3 = 2 byte handle + opcode */ if (p_data != NULL) { p = p_data; UINT8_TO_STREAM(p, GATT_SIGN_CMD_WRITE); UINT16_TO_STREAM(p, p_attr->handle); ARRAY_TO_STREAM(p, p_attr->value, p_attr->len); /* sign data length should be attribulte value length plus 2B handle + 1B op code */ if ((payload_size - GATT_AUTH_SIGN_LEN - 3) < p_attr->len) p_attr->len = payload_size - GATT_AUTH_SIGN_LEN - 3; p_signature = p_attr->value + p_attr->len; if (BTM_BleDataSignature(p_clcb->p_tcb->peer_bda, p_data, (UINT16)(p_attr->len + 3), /* 3 = 2 byte handle + opcode */ p_signature)) { p_attr->len += BTM_BLE_AUTH_SIGN_LEN; gatt_set_ch_state(p_clcb->p_tcb, GATT_CH_OPEN); gatt_act_write(p_clcb, GATT_SEC_SIGN_DATA); } else { gatt_end_operation(p_clcb, GATT_INTERNAL_ERROR, NULL); } GKI_freebuf(p_data); } return status; }