Android 9
1.修改 frameworks/base/core/java/android/net/NetworkFactory.java
evalRequest 方法 注释两行
private void evalRequest(NetworkRequestInfo n) {
if (VDBG) log("evalRequest");
if (n.requested == false && n.score < mScore &&
n.request.networkCapabilities.satisfiedByNetworkCapabilities(
mCapabilityFilter) && acceptRequest(n.request, n.score)) {
if (VDBG) log(" needNetworkFor");
needNetworkFor(n.request, n.score);
n.requested = true;
Log.d(TAG, "needNetworkFor");
} else if (n.requested == true &&
(n.score > mScore || n.request.networkCapabilities.satisfiedByNetworkCapabilities(
mCapabilityFilter) == false || acceptRequest(n.request, n.score) == false)) {
if (VDBG) log(" releaseNetworkFor");
Log.d(TAG, "releaseNetworkFor");
//releaseNetworkFor(n.request);//注释
//n.requested = false;//注释
} else {
if (VDBG) log(" done");
}
}
2.修改frameworks/opt/net/ethernet/java/com/android/server/ethernet/EthernetNetworkFactory.java文件修改 NETWORK_SCORE=30 降低优先级
这样以太网和wifi都能连接成功
Android 12
frameworks\opt\net\ethernet\java\com\android\server\ethernet\EthernetNetworkFactory.java
需要修改下面的得分
private static final SparseArray<TransportInfo> sTransports = new SparseArray();
static {
// LowpanInterfaceTracker.NETWORK_SCORE
sTransports.put(NetworkCapabilities.TRANSPORT_LOWPAN,
new TransportInfo(ConnectivityManager.TYPE_NONE, 30));
// WifiAwareDataPathStateManager.NETWORK_FACTORY_SCORE_AVAIL
sTransports.put(NetworkCapabilities.TRANSPORT_WIFI_AWARE,
new TransportInfo(ConnectivityManager.TYPE_NONE, 1));
// EthernetNetworkFactory.NETWORK_SCORE
sTransports.put(NetworkCapabilities.TRANSPORT_ETHERNET,
new TransportInfo(ConnectivityManager.TYPE_ETHERNET, 70));
// BluetoothTetheringNetworkFactory.NETWORK_SCORE
sTransports.put(NetworkCapabilities.TRANSPORT_BLUETOOTH,
new TransportInfo(ConnectivityManager.TYPE_BLUETOOTH, 69));
// WifiNetworkFactory.SCORE_FILTER / NetworkAgent.WIFI_BASE_SCORE
sTransports.put(NetworkCapabilities.TRANSPORT_WIFI,
new TransportInfo(ConnectivityManager.TYPE_WIFI, 60));
// TelephonyNetworkFactory.TELEPHONY_NETWORK_SCORE
sTransports.put(NetworkCapabilities.TRANSPORT_CELLULAR,
new TransportInfo(ConnectivityManager.TYPE_MOBILE, 50));
}frameworks\libs\net\common\device\android\net\NetworkFactoryLegacyImpl.java
原因是updateAgent变了
Android 9
private void updateAgent() {
if (mNetworkAgent == null) return;
if (DBG) {
Log.i(TAG, "Updating mNetworkAgent with: " +
mCapabilities + ", " +
mNetworkInfo + ", " +
mLinkProperties);
}
mNetworkAgent.sendNetworkCapabilities(mCapabilities);
mNetworkAgent.sendNetworkInfo(mNetworkInfo);
mNetworkAgent.sendLinkProperties(mLinkProperties);
// never set the network score below 0.
mNetworkAgent.sendNetworkScore(mLinkUp? NETWORK_SCORE : 0);
}Android12
private void updateAgent() {
if (mNetworkAgent == null) return;
if (DBG) {
Log.i(TAG, "Updating mNetworkAgent with: " +
mCapabilities + ", " +
mLinkProperties);
}
mNetworkAgent.sendNetworkCapabilities(mCapabilities);
mNetworkAgent.sendLinkProperties(mLinkProperties);
// As a note, getNetworkScore() is fairly expensive to calculate. This is fine for now
// since the agent isn't updated frequently. Consider caching the score in the future if
// agent updating is required more often
mNetworkAgent.sendNetworkScore(getNetworkScore());
}/**
* Determines the network score based on the transport associated with the interface.
* Ethernet interfaces could propagate a transport types forward. Since we can't
* get more information about the statuses of the interfaces on the other end of the local
* interface, we'll best-effort assign the score as the base score of the assigned transport
* when the link is up. When the link is down, the score is set to zero.
*
* This function is called with the purpose of assigning and updating the network score of
* the member NetworkAgent.
*/
private int getNetworkScore() {
// never set the network score below 0.
if (!mLinkUp) {
return 0;
}
int[] transportTypes = mCapabilities.getTransportTypes();
if (transportTypes.length < 1) {
Log.w(TAG, "Network interface '" + mLinkProperties.getInterfaceName() + "' has no "
+ "transport type associated with it. Score set to zero");
return 0;
}
TransportInfo transportInfo = sTransports.get(transportTypes[0], /* if dne */ null);
if (transportInfo != null) {
return transportInfo.mScore;
}
return 0;
}所谓共存就是让两个网络同时使用，如果想让哪个网络作为外网，则该网络优先级要高于内网的网络，即可达到外网用来上网的需求，那么要想共存，就必须到从低优先级网络切换到优先级高的网络时，不要做断开操作，即可达到，两个网络同时存在的需求，做到以上两点，我们便满足了2个网络同时存在，且使用优先级高的外网上网文章来源：https://www.toymoban.com/news/detail-702574.html
到了android12已经废弃了这种直接的打分机制，使用了policy机制，具体可参考packages/modules/Connectivity/service/src/com/android/server/connectivity/NetworkRanker.java
但由于这种评分机制涉及的条件比较多，对于我们做网络共存这个需求来说更加复杂，
对此android开发者也给我么预留了以前的评分方案，只要我们简单的将USE_POLICY_RANKING = false; 即可文章来源地址https://www.toymoban.com/news/detail-702574.html
/**
* Find the best network satisfying this request among the list of passed networks.
*/
@Nullable
public NetworkAgentInfo getBestNetwork(@NonNull final NetworkRequest request,
@NonNull final Collection<NetworkAgentInfo> nais,
@Nullable final NetworkAgentInfo currentSatisfier) {
final ArrayList<NetworkAgentInfo> candidates = filter(nais, nai -> nai.satisfies(request));
if (candidates.size() == 1) return candidates.get(0); // Only one potential satisfier
if (candidates.size() <= 0) return null; // No network can satisfy this request
if (USE_POLICY_RANKING) {
return getBestNetworkByPolicy(candidates, currentSatisfier);
} else {
return getBestNetworkByLegacyInt(candidates);
}
}到了这里，关于rk3399 android以太网和wifi共存的文章就介绍完了。如果您还想了解更多内容，请在右上角搜索TOY模板网以前的文章或继续浏览下面的相关文章，希望大家以后多多支持TOY模板网！
