LineageOS/android_packages_modules_Connectivity
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Separate network and interface addition/removal netd APIs.

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This should facilitate stacked interfaces (i.e. clatd).

Change-Id: Ib3e7a4d3847ef6ec4449451f6da42e75959baa4f
This commit is contained in:
Paul Jensen
2014-04-28 10:33:11 -04:00
committed by Lorenzo Colitti
parent e20f7a2429
commit bff73490ac
2 changed files with 55 additions and 2 deletions
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29
core/java/android/net/LinkProperties.java
View File

@@ -642,6 +642,35 @@ public class LinkProperties implements Parcelable {
return result;
}
/**
* Compares all interface names in this LinkProperties with another
* LinkProperties, examining both the the base link and all stacked links.
*
* @param target a LinkProperties with the new list of interface names
* @return the differences between the interface names.
* @hide
*/
public CompareResult<String> compareAllInterfaceNames(LinkProperties target) {
/*
* Duplicate the interface names into removed, we will be removing
* interface names which are common between this and target
* leaving the interface names that are different. And interface names which
* are in target but not in this are placed in added.
*/
CompareResult<String> result = new CompareResult<String>();
result.removed = getAllInterfaceNames();
result.added.clear();
if (target != null) {
for (String r : target.getAllInterfaceNames()) {
if (! result.removed.remove(r)) {
result.added.add(r);
}
}
}
return result;
}
@Override
/**

28
services/core/java/com/android/server/ConnectivityService.java
View File

@@ -5088,6 +5088,7 @@ public class ConnectivityService extends IConnectivityManager.Stub {
LinkProperties newLp = networkAgent.linkProperties;
int netId = networkAgent.network.netId;
updateInterfaces(newLp, oldLp, netId);
updateMtu(newLp, oldLp);
// TODO - figure out what to do for clat
// for (LinkProperties lp : newLp.getStackedLinks()) {
@@ -5096,6 +5097,30 @@ public class ConnectivityService extends IConnectivityManager.Stub {
updateRoutes(newLp, oldLp, netId);
updateDnses(newLp, oldLp, netId);
}
private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) {
CompareResult<String> interfaceDiff = new CompareResult<String>();
if (oldLp != null) {
interfaceDiff = oldLp.compareAllInterfaceNames(newLp);
} else if (newLp != null) {
interfaceDiff.added = newLp.getAllInterfaceNames();
}
for (String iface : interfaceDiff.added) {
try {
mNetd.addInterfaceToNetwork(iface, netId);
} catch (Exception e) {
loge("Exception adding interface: " + e);
}
}
for (String iface : interfaceDiff.removed) {
try {
mNetd.removeInterfaceFromNetwork(iface, netId);
} catch (Exception e) {
loge("Exception removing interface: " + e);
}
}
}
private void updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) {
CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>();
if (oldLp != null) {
@@ -5300,8 +5325,7 @@ public class ConnectivityService extends IConnectivityManager.Stub {
if (state == NetworkInfo.State.CONNECTED) {
// TODO - check if we want it (optimization)
try {
mNetd.createNetwork(networkAgent.network.netId,
networkAgent.linkProperties.getInterfaceName());
mNetd.createNetwork(networkAgent.network.netId);
} catch (Exception e) {
loge("Error creating Network " + networkAgent.network.netId);
}