This fix the code review comment from aosp/2319853 that getXXX functions
should be renamed to makeXXX because it's actually creating the object.
Test: TH
Change-Id: Ife8e1cc3a90b835764a2dd9731388b05d8a5c964
Markauthored and Mark Chiencommited 2023-12-04 09:02:55 +00:00
Currently, PrivateAddressCoordinator always selects the /24 prefix
from the 192.168.x.x/16 range first. If the upstream is also a /24
prefix in the 192.168.x.x/16 range, there's a 1/256 chance of a
conflict (192.168.0.x/24 ~ 192.168.255.x/24). Since 192.168.x.x/16
is a popular range for home and small business networks, we should
randomize the starting prefix range to reduce the chance of a
conflict. The /8, /12, and /16 range selection rates are 0.39%,
5.86%, and 93.7%, respectively (see the inline comments for how
the rates are calculated).
The chance of selecting a /24 prefix is:
- 10.0.0.0/8: 1/(256*256) * 93.7% = 0.001429%
- 172.16.0.0/12: 1/(16*256) * 5.86% = 0.00143%
- 192.168.0.0/16: 1/256 * 0.39% = 0.001523%
Note: This change is currently turned off by the
tether_force_random_prefix_base_selection flag. We'll run experiments
to make sure tethering stays reliable with this change enabled.
Bug: 312647670
Test: atest TetheringTests
Change-Id: Iea03fdcf0fccad95410e79ae87fcb046d75da457
The code currently calls RandomInt twice to generate an address.
For example, if you want to generate the address 192.168.A.B,
RandomInt will be called twice to generate the values for A and B.
To save resources, we can avoid calling RandomInt twice by reusing
the same random value with different masks for A and B.
Before:
- RandomInt() & 0xff00 -> A
- RandomInt() & 0x00ff -> B
After:
- RandomInt() & 0xffff -> A.B
Bug: 312647670
Test: atest TetheringTests
Change-Id: Iee49af3d82781309f78fe66ab07937b8137fa259
Markauthored and Mark Chiencommited 2023-11-24 03:10:11 +00:00
HandlerThread was introduced in aosp/2493357. This patch moves the
code originally located in buildNewRa() into the HandlerThread.
Bug: 246928127
Test: atest TetheringPrivilegedTests TetheringIntegrationTests \
TetheringTests
Change-Id: I5f6df0a3a79d7f4a865cfec7f88bc28816b1db95
This patch changes the implementation of UnicastResponder in the
RouterAdvertisementDaemon with FdEventsReader. The change includes
replacing Thread with HandlerThread, create socket in non-blocking
mode (required by FdEventsReader) and use FdEventsReader to listen
to the solicited RS packets. Two commands (CMD_START & CMD_STOP)
were added to control the lifecycle of the FdEventsReader.
Bug: 246928127
Test: atest TetheringPrivilegedTests TetheringIntegrationTests \
TetheringTests
Test: Enable WiFi hotspot and connected with another Pixel client:
1. Tcpdump on the Pixel client, checking the RA packets
2. Verify IPv6 addresses were configured
3. ping6 2001:4860:4860::64
Change-Id: I6e89903df90864e3bb34d498e353d6f87193e9d6
Instead of passing state machine to UpstreamNetworkMonitor, wrapped it
by an interface would have two benefits:
1. Easier for testing.
2. Isolate state machine operation in callback.
Test: atest TetheringTests
Change-Id: I2a97fd5cbc8c49df8c3c98428c6570916ab31ea5
1. assertEquals syntax is (expected, actual) and not the other way
around
2. use assertArrayEquals to compare arrays
Test: atest TetheringTests
Bug: 312072637
Change-Id: I5eb0c270323253f648d3a8fd488506b9ad1ca6a1
TetherUpstream6Key#src64 should be stored in network order. Use
a big-endian ByteBuffer to retrieve a value stored in network order
is actually converts it into native order, which is little-endian in
Android.
In this CL, we changed it to use byte[] instead of long to store the
top 64-bits of the source prefix.
Test: atest TetheringTests
manual test with IPv6-only tethering upstream, check BPF stats.
Bug: 312072637
Change-Id: I79f9282d5eda28328aa6a764ea92b086d6285133
FileDescriptor#getInt$() is a hidden API with the unsupportedApiUsage
annotation on R. Accessing it will cause a NewApi linter check error.
It should be removed from OffloadHalHidlImpl as it is only used for
log messages.
Bug: b/205762647
Test: m
Change-Id: Ie41d12988aee65a066dfb1529e828f4523cc0907
Avoid passing primitive data types into Objects.hash() which will
convert them to their corresponding object wrapper types
automatically.
Test: atest TetheringTests
Bug: 261923493
Change-Id: I2efe7f3e50923ad2e33cfd58ae7e1e1cf7fd34bd
The ThreadNetworkController class provides APIs for managing the Thread
network, for example, attach to a specific network, form a network with
given dataset or update/migrate an existing network.
Bug: 262683651
Test: atest CtsThreadNetworkTestCases
Change-Id: Ib3c267d2c81a8c3c7772ed3c9cd2092487cc941a
java_sdk_library has previously internally disabled a few legitimate
issues. As this is being un-done for modules, add baselines for the
pre-existing issues.
Bug: 306806877
Test: m checkapi
Merged-In: Ie764d33196675e1482f30ecfd3d6d22b7fa25c27
Change-Id: Ie764d33196675e1482f30ecfd3d6d22b7fa25c27
This can be used from S. There is no point in having a
release name in the name of this class.
Test: builds
Change-Id: I301bf032f856dd4c30554e06013f31ee57208c4e
The test doesn't explicitly call adoptShellPermissionIdentity anymore. Instead it use runAsShell everywhere. Remove the dead code.
Bug: 254183718
Change-Id: Ia949e0e315a3b3ae915752e95ef9fe896fdc0f5b
Test: TH
Mark Chien
authored and
Automerger Merge Worker
commited 
Motomu Utsumi
authored and
Gerrit Code Review
commited 
Treehugger Robot
authored and
KH Shi
authored and
Anton Hansson
authored and
Kangping Dong
authored and
Maciej Żenczykowski
authored and
Jean Chalard
authored and