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| 1 | +# Copyright 2023 Google LLC |
| 2 | +# |
| 3 | +# Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | +# you may not use this file except in compliance with the License. |
| 5 | +# You may obtain a copy of the License at |
| 6 | +# |
| 7 | +# https://www.apache.org/licenses/LICENSE-2.0 |
| 8 | +# |
| 9 | +# Unless required by applicable law or agreed to in writing, software |
| 10 | +# distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | +# See the License for the specific language governing permissions and |
| 13 | +# limitations under the License. |
| 14 | + |
| 15 | +import asyncio |
| 16 | +import hci_packets as hci |
| 17 | +import link_layer_packets as ll |
| 18 | +import math |
| 19 | +import random |
| 20 | +import unittest |
| 21 | +from dataclasses import dataclass |
| 22 | +from hci_packets import ErrorCode, FragmentPreference |
| 23 | +from py.bluetooth import Address |
| 24 | +from py.controller import ControllerTest, generate_rpa |
| 25 | +from typing import List |
| 26 | + |
| 27 | + |
| 28 | +@dataclass |
| 29 | +class TestRound: |
| 30 | + data_length: int |
| 31 | + |
| 32 | + |
| 33 | +class Test(ControllerTest): |
| 34 | + # Test parameters. |
| 35 | + LL_advertiser_advInterval_MIN = 0x800 |
| 36 | + LL_advertiser_advInterval_MAX = 0x800 |
| 37 | + LL_advertiser_Adv_Channel_Map = 0x7 |
| 38 | + LL_initiator_connInterval = 0x200 |
| 39 | + LL_initiator_connPeripheralLatency = 0x200 |
| 40 | + LL_initiator_connSupervisionTimeout = 0x200 |
| 41 | + |
| 42 | + # LL/SEC/ADV/BV-11-C [Network Privacy - Directed Connectable Advertising |
| 43 | + # using local and remote IRK] |
| 44 | + # |
| 45 | + # Verify that the IUT, when transmitting directed connectable advertising |
| 46 | + # events, is using resolvable private addresses for AdvA and InitA fields |
| 47 | + # when the Lower Tester has distributed its own IRK. |
| 48 | + # |
| 49 | + # Verify that when address resolution is disabled on the IUT, the Lower |
| 50 | + # Tester resolvable private address is not resolved, and therefore a |
| 51 | + # connection is not established. |
| 52 | + async def test(self): |
| 53 | + controller = self.controller |
| 54 | + local_irk = bytes([1] * 16) |
| 55 | + peer_irk = bytes([2] * 16) |
| 56 | + random_irk = bytes([3] * 16) |
| 57 | + peer_address = Address('aa:bb:cc:dd:ee:ff') |
| 58 | + |
| 59 | + # 1. The Lower Tester adds the Device Identity of the IUT to its resolving list. |
| 60 | + # 2. Configure the Lower Tester to initiate a connection while using a resolvable private address. |
| 61 | + |
| 62 | + # 3. The Upper Tester populates the resolving list with the device identity of the Lower Tester |
| 63 | + # connected with the local device identity. The IUT use these when generating resolvable private |
| 64 | + # addresses for use in the advertising packet’s AdvA and InitA fields. |
| 65 | + controller.send_cmd( |
| 66 | + hci.LeAddDeviceToResolvingList( |
| 67 | + peer_irk=peer_irk, |
| 68 | + local_irk=local_irk, |
| 69 | + peer_identity_address=peer_address, |
| 70 | + peer_identity_address_type=hci.PeerAddressType.PUBLIC_DEVICE_OR_IDENTITY_ADDRESS)) |
| 71 | + |
| 72 | + await self.expect_evt( |
| 73 | + hci.LeAddDeviceToResolvingListComplete(status=ErrorCode.SUCCESS, num_hci_command_packets=1)) |
| 74 | + |
| 75 | + controller.send_cmd(hci.LeSetResolvablePrivateAddressTimeout(rpa_timeout=0x10)) |
| 76 | + |
| 77 | + await self.expect_evt( |
| 78 | + hci.LeSetResolvablePrivateAddressTimeoutComplete(status=ErrorCode.SUCCESS, num_hci_command_packets=1)) |
| 79 | + |
| 80 | + # 4. The Upper Tester enables resolving list and directed connectable advertising in the IUT. |
| 81 | + controller.send_cmd( |
| 82 | + hci.LeSetAdvertisingParameters(advertising_interval_min=Test.LL_advertiser_advInterval_MIN, |
| 83 | + advertising_interval_max=Test.LL_advertiser_advInterval_MAX, |
| 84 | + advertising_type=hci.AdvertisingType.ADV_DIRECT_IND_HIGH, |
| 85 | + own_address_type=hci.OwnAddressType.RESOLVABLE_OR_PUBLIC_ADDRESS, |
| 86 | + peer_address=peer_address, |
| 87 | + peer_address_type=hci.PeerAddressType.PUBLIC_DEVICE_OR_IDENTITY_ADDRESS, |
| 88 | + advertising_channel_map=0x7, |
| 89 | + advertising_filter_policy=hci.AdvertisingFilterPolicy.ALL_DEVICES)) |
| 90 | + |
| 91 | + await self.expect_evt( |
| 92 | + hci.LeSetAdvertisingParametersComplete(status=ErrorCode.SUCCESS, num_hci_command_packets=1)) |
| 93 | + |
| 94 | + controller.send_cmd(hci.LeSetAdvertisingData()) |
| 95 | + |
| 96 | + await self.expect_evt(hci.LeSetAdvertisingDataComplete(status=ErrorCode.SUCCESS, num_hci_command_packets=1)) |
| 97 | + |
| 98 | + controller.send_cmd(hci.LeSetAddressResolutionEnable(address_resolution_enable=hci.Enable.ENABLED)) |
| 99 | + |
| 100 | + await self.expect_evt( |
| 101 | + hci.LeSetAddressResolutionEnableComplete(status=ErrorCode.SUCCESS, num_hci_command_packets=1)) |
| 102 | + |
| 103 | + controller.send_cmd(hci.LeSetAdvertisingEnable(advertising_enable=True)) |
| 104 | + |
| 105 | + await self.expect_evt(hci.LeSetAdvertisingEnableComplete(status=ErrorCode.SUCCESS, num_hci_command_packets=1)) |
| 106 | + |
| 107 | + # 5. The Lower Tester expects the IUT to send ADV_DIRECT_IND packets on an applicable |
| 108 | + # advertising channel. |
| 109 | + direct_ind = await self.expect_ll(ll.LeLegacyAdvertisingPdu( |
| 110 | + source_address=self.Any, |
| 111 | + destination_address=self.Any, |
| 112 | + advertising_address_type=ll.AddressType.RANDOM, |
| 113 | + target_address_type=ll.AddressType.RANDOM, |
| 114 | + advertising_type=ll.LegacyAdvertisingType.ADV_DIRECT_IND, |
| 115 | + advertising_data=[]), |
| 116 | + timeout=5) |
| 117 | + |
| 118 | + self.assertTrue(direct_ind.source_address.is_resolvable()) |
| 119 | + self.assertTrue(direct_ind.destination_address.is_resolvable()) |
| 120 | + |
| 121 | + # 6. The Lower Tester identifies the IUT. The Lower Tester sends a CONNECT_IND with the AdvA |
| 122 | + # address of the ADV_DIRECT_IND and the InitA generated based on its Device Identity. The IUT |
| 123 | + # verifies AdvA and resolves the InitA Address and identifies the Lower Tester. |
| 124 | + # 7. The Lower Tester connects to the IUT. The Lower Tester sends empty LL DATA packets starting |
| 125 | + # with the first event one connection interval after the connection request using the common data |
| 126 | + # channel selection parameters. |
| 127 | + init_a = generate_rpa(peer_irk) |
| 128 | + controller.send_ll( |
| 129 | + ll.LeConnect(source_address=init_a, |
| 130 | + destination_address=direct_ind.source_address, |
| 131 | + initiating_address_type=ll.AddressType.RANDOM, |
| 132 | + advertising_address_type=ll.AddressType.RANDOM, |
| 133 | + conn_interval=Test.LL_initiator_connInterval, |
| 134 | + conn_peripheral_latency=0x6, |
| 135 | + conn_supervision_timeout=0xc80)) |
| 136 | + |
| 137 | + await self.expect_ll( |
| 138 | + ll.LeConnectComplete(source_address=direct_ind.source_address, |
| 139 | + destination_address=init_a, |
| 140 | + initiating_address_type=ll.AddressType.RANDOM, |
| 141 | + advertising_address_type=ll.AddressType.RANDOM, |
| 142 | + conn_interval=Test.LL_initiator_connInterval, |
| 143 | + conn_peripheral_latency=0x6, |
| 144 | + conn_supervision_timeout=0xc80)) |
| 145 | + |
| 146 | + connection_complete_evt = await self.expect_evt( |
| 147 | + hci.LeEnhancedConnectionComplete( |
| 148 | + status=hci.ErrorCode.SUCCESS, |
| 149 | + connection_handle=self.Any, |
| 150 | + role=hci.Role.PERIPHERAL, |
| 151 | + peer_address_type=hci.AddressType.PUBLIC_DEVICE_ADDRESS, |
| 152 | + peer_address=peer_address, |
| 153 | + local_resolvable_private_address=direct_ind.source_address, |
| 154 | + peer_resolvable_private_address=init_a, |
| 155 | + connection_interval=0x200, |
| 156 | + peripheral_latency=0x6, |
| 157 | + supervision_timeout=0xc80, |
| 158 | + central_clock_accuracy=hci.ClockAccuracy.PPM_500, |
| 159 | + )) |
| 160 | + |
| 161 | + # 8. The Upper Tester terminates the connection. |
| 162 | + controller.send_cmd( |
| 163 | + hci.Disconnect(connection_handle=connection_complete_evt.connection_handle, |
| 164 | + reason=hci.DisconnectReason.REMOTE_USER_TERMINATED_CONNECTION)) |
| 165 | + |
| 166 | + await self.expect_evt(hci.DisconnectStatus(status=ErrorCode.SUCCESS, num_hci_command_packets=1)) |
| 167 | + |
| 168 | + await self.expect_ll( |
| 169 | + ll.Disconnect(source_address=direct_ind.source_address, |
| 170 | + destination_address=init_a, |
| 171 | + reason=hci.DisconnectReason.REMOTE_USER_TERMINATED_CONNECTION)) |
| 172 | + |
| 173 | + await self.expect_evt( |
| 174 | + hci.DisconnectionComplete(status=ErrorCode.SUCCESS, |
| 175 | + connection_handle=connection_complete_evt.connection_handle, |
| 176 | + reason=ErrorCode.CONNECTION_TERMINATED_BY_LOCAL_HOST)) |
| 177 | + |
| 178 | + # 9. The Upper Tester disables address resolution in the IUT. |
| 179 | + controller.send_cmd(hci.LeSetAddressResolutionEnable(address_resolution_enable=hci.Enable.DISABLED)) |
| 180 | + |
| 181 | + await self.expect_evt( |
| 182 | + hci.LeSetAddressResolutionEnableComplete(status=ErrorCode.SUCCESS, num_hci_command_packets=1)) |
| 183 | + |
| 184 | + # 10. Repeat steps 11–14 at least 20 times. |
| 185 | + |
| 186 | + # 11. The Upper Tester enables directed connectable advertising in the IUT. |
| 187 | + controller.send_cmd(hci.LeSetAdvertisingEnable(advertising_enable=True)) |
| 188 | + |
| 189 | + await self.expect_evt(hci.LeSetAdvertisingEnableComplete(status=ErrorCode.SUCCESS, num_hci_command_packets=1)) |
| 190 | + |
| 191 | + # 12. The Lower Tester expects the IUT to send ADV_DIRECT_IND packets on an applicable |
| 192 | + # advertising channel. The Lower Tester resolves the AdvA address and identifies the IUT. |
| 193 | + direct_ind = await self.expect_ll(ll.LeLegacyAdvertisingPdu( |
| 194 | + source_address=self.Any, |
| 195 | + destination_address=self.Any, |
| 196 | + advertising_address_type=ll.AddressType.RANDOM, |
| 197 | + target_address_type=ll.AddressType.RANDOM, |
| 198 | + advertising_type=ll.LegacyAdvertisingType.ADV_DIRECT_IND, |
| 199 | + advertising_data=[]), |
| 200 | + timeout=5) |
| 201 | + |
| 202 | + self.assertTrue(direct_ind.source_address.is_resolvable()) |
| 203 | + self.assertTrue(direct_ind.destination_address.is_resolvable()) |
| 204 | + |
| 205 | + # 13. The Lower Tester sends a CONNECT_IND with the AdvA address of the ADV_IND and the InitA |
| 206 | + # set to a different address than the last CONNECT_IND. The IUT does not resolve the address in |
| 207 | + # the InitA field. No connection event is sent to the Upper Tester. |
| 208 | + init_a = generate_rpa(local_irk) |
| 209 | + controller.send_ll( |
| 210 | + ll.LeConnect(source_address=init_a, |
| 211 | + destination_address=direct_ind.source_address, |
| 212 | + initiating_address_type=ll.AddressType.RANDOM, |
| 213 | + advertising_address_type=ll.AddressType.RANDOM, |
| 214 | + conn_interval=0x200, |
| 215 | + conn_peripheral_latency=0x6, |
| 216 | + conn_supervision_timeout=0xc80)) |
| 217 | + |
| 218 | + # 14. The Upper Tester receives an HCI_LE_Connection_Complete event or an |
| 219 | + # HCI_LE_Enhanced_Connection_Complete event with the Status code set to Advertising Timeout |
| 220 | + # (0x3C). |
| 221 | + await self.expect_evt(hci.LeConnectionComplete(status=hci.ErrorCode.ADVERTISING_TIMEOUT,)) |
| 222 | + |
| 223 | + # Empty the LL queue. |
| 224 | + controller.ll_queue.clear() |
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