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Merge "Extend network request to query networks w/o capabilites"

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am: 47d4d15483

Change-Id: Id1d86938fa2d5aff4dbf9cde87548d80c76674d9
This commit is contained in:
Pavel Maltsev
2018-03-02 23:52:18 +00:00
committed by android-build-merger
parent 331e50f601 47d4d15483
commit 334cde1ec2
3 changed files with 257 additions and 29 deletions
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142
core/java/android/net/NetworkCapabilities.java
View File

@@ -17,6 +17,7 @@
package android.net;
import android.annotation.IntDef;
import android.annotation.SystemApi;
import android.net.ConnectivityManager.NetworkCallback;
import android.os.Parcel;
import android.os.Parcelable;
@@ -69,6 +70,7 @@ public final class NetworkCapabilities implements Parcelable {
mSignalStrength = nc.mSignalStrength;
mUids = nc.mUids;
mEstablishingVpnAppUid = nc.mEstablishingVpnAppUid;
mUnwantedNetworkCapabilities = nc.mUnwantedNetworkCapabilities;
}
}
@@ -78,7 +80,7 @@ public final class NetworkCapabilities implements Parcelable {
* @hide
*/
public void clearAll() {
mNetworkCapabilities = mTransportTypes = 0;
mNetworkCapabilities = mTransportTypes = mUnwantedNetworkCapabilities = 0;
mLinkUpBandwidthKbps = mLinkDownBandwidthKbps = LINK_BANDWIDTH_UNSPECIFIED;
mNetworkSpecifier = null;
mSignalStrength = SIGNAL_STRENGTH_UNSPECIFIED;
@@ -92,6 +94,11 @@ public final class NetworkCapabilities implements Parcelable {
*/
private long mNetworkCapabilities;
/**
* If any capabilities specified here they must not exist in the matching Network.
*/
private long mUnwantedNetworkCapabilities;
/** @hide */
@Retention(RetentionPolicy.SOURCE)
@IntDef(prefix = { "NET_CAPABILITY_" }, value = {
@@ -339,31 +346,55 @@ public final class NetworkCapabilities implements Parcelable {
* Adds the given capability to this {@code NetworkCapability} instance.
* Multiple capabilities may be applied sequentially. Note that when searching
* for a network to satisfy a request, all capabilities requested must be satisfied.
* <p>
* If the given capability was previously added to the list of unwanted capabilities
* then the capability will also be removed from the list of unwanted capabilities.
*
* @param capability the capability to be added.
* @return This NetworkCapabilities instance, to facilitate chaining.
* @hide
*/
public NetworkCapabilities addCapability(@NetCapability int capability) {
if (capability < MIN_NET_CAPABILITY || capability > MAX_NET_CAPABILITY) {
throw new IllegalArgumentException("NetworkCapability out of range");
}
checkValidCapability(capability);
mNetworkCapabilities |= 1 << capability;
mUnwantedNetworkCapabilities &= ~(1 << capability); // remove from unwanted capability list
return this;
}
/**
* Adds the given capability to the list of unwanted capabilities of this
* {@code NetworkCapability} instance. Multiple unwanted capabilities may be applied
* sequentially. Note that when searching for a network to satisfy a request, the network
* must not contain any capability from unwanted capability list.
* <p>
* If the capability was previously added to the list of required capabilities (for
* example, it was there by default or added using {@link #addCapability(int)} method), then
* it will be removed from the list of required capabilities as well.
*
* @see #addCapability(int)
* @hide
*/
public void addUnwantedCapability(@NetCapability int capability) {
checkValidCapability(capability);
mUnwantedNetworkCapabilities |= 1 << capability;
mNetworkCapabilities &= ~(1 << capability); // remove from requested capabilities
}
/**
* Removes (if found) the given capability from this {@code NetworkCapability} instance.
* <p>
* Note that this method removes capabilities that was added via {@link #addCapability(int)},
* {@link #addUnwantedCapability(int)} or {@link #setCapabilities(int[], int[])} .
*
* @param capability the capability to be removed.
* @return This NetworkCapabilities instance, to facilitate chaining.
* @hide
*/
public NetworkCapabilities removeCapability(@NetCapability int capability) {
if (capability < MIN_NET_CAPABILITY || capability > MAX_NET_CAPABILITY) {
throw new IllegalArgumentException("NetworkCapability out of range");
}
mNetworkCapabilities &= ~(1 << capability);
checkValidCapability(capability);
final long mask = ~(1 << capability);
mNetworkCapabilities &= mask;
mUnwantedNetworkCapabilities &= mask;
return this;
}
@@ -392,31 +423,58 @@ public final class NetworkCapabilities implements Parcelable {
return BitUtils.unpackBits(mNetworkCapabilities);
}
/**
* Gets all the unwanted capabilities set on this {@code NetworkCapability} instance.
*
* @return an array of unwanted capability values for this instance.
* @hide
*/
public @NetCapability int[] getUnwantedCapabilities() {
return BitUtils.unpackBits(mUnwantedNetworkCapabilities);
}
/**
* Sets all the capabilities set on this {@code NetworkCapability} instance.
* This overwrites any existing capabilities.
*
* @hide
*/
public void setCapabilities(@NetCapability int[] capabilities) {
public void setCapabilities(@NetCapability int[] capabilities,
@NetCapability int[] unwantedCapabilities) {
mNetworkCapabilities = BitUtils.packBits(capabilities);
mUnwantedNetworkCapabilities = BitUtils.packBits(unwantedCapabilities);
}
/**
* Tests for the presence of a capabilitity on this instance.
* @deprecated use {@link #setCapabilities(int[], int[])}
* @hide
*/
@Deprecated
public void setCapabilities(@NetCapability int[] capabilities) {
setCapabilities(capabilities, new int[] {});
}
/**
* Tests for the presence of a capability on this instance.
*
* @param capability the capabilities to be tested for.
* @return {@code true} if set on this instance.
*/
public boolean hasCapability(@NetCapability int capability) {
if (capability < MIN_NET_CAPABILITY || capability > MAX_NET_CAPABILITY) {
return false;
}
return ((mNetworkCapabilities & (1 << capability)) != 0);
return isValidCapability(capability)
&& ((mNetworkCapabilities & (1 << capability)) != 0);
}
/** @hide */
public boolean hasUnwantedCapability(@NetCapability int capability) {
return isValidCapability(capability)
&& ((mUnwantedNetworkCapabilities & (1 << capability)) != 0);
}
private void combineNetCapabilities(NetworkCapabilities nc) {
this.mNetworkCapabilities |= nc.mNetworkCapabilities;
this.mUnwantedNetworkCapabilities |= nc.mUnwantedNetworkCapabilities;
}
/**
@@ -427,7 +485,9 @@ public final class NetworkCapabilities implements Parcelable {
* @hide
*/
public String describeFirstNonRequestableCapability() {
final long nonRequestable = (mNetworkCapabilities & NON_REQUESTABLE_CAPABILITIES);
final long nonRequestable = (mNetworkCapabilities | mUnwantedNetworkCapabilities)
& NON_REQUESTABLE_CAPABILITIES;
if (nonRequestable != 0) {
return capabilityNameOf(BitUtils.unpackBits(nonRequestable)[0]);
}
@@ -437,21 +497,29 @@ public final class NetworkCapabilities implements Parcelable {
}
private boolean satisfiedByNetCapabilities(NetworkCapabilities nc, boolean onlyImmutable) {
long networkCapabilities = this.mNetworkCapabilities;
long requestedCapabilities = mNetworkCapabilities;
long requestedUnwantedCapabilities = mUnwantedNetworkCapabilities;
long providedCapabilities = nc.mNetworkCapabilities;
if (onlyImmutable) {
networkCapabilities = networkCapabilities & ~MUTABLE_CAPABILITIES;
requestedCapabilities &= ~MUTABLE_CAPABILITIES;
requestedUnwantedCapabilities &= ~MUTABLE_CAPABILITIES;
}
return ((nc.mNetworkCapabilities & networkCapabilities) == networkCapabilities);
return ((providedCapabilities & requestedCapabilities) == requestedCapabilities)
&& ((requestedUnwantedCapabilities & providedCapabilities) == 0);
}
/** @hide */
public boolean equalsNetCapabilities(NetworkCapabilities nc) {
return (nc.mNetworkCapabilities == this.mNetworkCapabilities);
return (nc.mNetworkCapabilities == this.mNetworkCapabilities)
&& (nc.mUnwantedNetworkCapabilities == this.mUnwantedNetworkCapabilities);
}
private boolean equalsNetCapabilitiesRequestable(NetworkCapabilities that) {
return ((this.mNetworkCapabilities & ~NON_REQUESTABLE_CAPABILITIES) ==
(that.mNetworkCapabilities & ~NON_REQUESTABLE_CAPABILITIES));
(that.mNetworkCapabilities & ~NON_REQUESTABLE_CAPABILITIES))
&& ((this.mUnwantedNetworkCapabilities & ~NON_REQUESTABLE_CAPABILITIES) ==
(that.mUnwantedNetworkCapabilities & ~NON_REQUESTABLE_CAPABILITIES));
}
/**
@@ -1187,15 +1255,17 @@ public final class NetworkCapabilities implements Parcelable {
@Override
public int hashCode() {
return ((int) (mNetworkCapabilities & 0xFFFFFFFF)
return (int) (mNetworkCapabilities & 0xFFFFFFFF)
+ ((int) (mNetworkCapabilities >> 32) * 3)
+ ((int) (mTransportTypes & 0xFFFFFFFF) * 5)
+ ((int) (mTransportTypes >> 32) * 7)
+ (mLinkUpBandwidthKbps * 11)
+ (mLinkDownBandwidthKbps * 13)
+ Objects.hashCode(mNetworkSpecifier) * 17
+ (mSignalStrength * 19)
+ Objects.hashCode(mUids) * 23);
+ ((int) (mUnwantedNetworkCapabilities & 0xFFFFFFFF) * 5)
+ ((int) (mUnwantedNetworkCapabilities >> 32) * 7)
+ ((int) (mTransportTypes & 0xFFFFFFFF) * 11)
+ ((int) (mTransportTypes >> 32) * 13)
+ (mLinkUpBandwidthKbps * 17)
+ (mLinkDownBandwidthKbps * 19)
+ Objects.hashCode(mNetworkSpecifier) * 23
+ (mSignalStrength * 29)
+ Objects.hashCode(mUids) * 31;
}
@Override
@@ -1205,6 +1275,7 @@ public final class NetworkCapabilities implements Parcelable {
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeLong(mNetworkCapabilities);
dest.writeLong(mUnwantedNetworkCapabilities);
dest.writeLong(mTransportTypes);
dest.writeInt(mLinkUpBandwidthKbps);
dest.writeInt(mLinkDownBandwidthKbps);
@@ -1220,6 +1291,7 @@ public final class NetworkCapabilities implements Parcelable {
NetworkCapabilities netCap = new NetworkCapabilities();
netCap.mNetworkCapabilities = in.readLong();
netCap.mUnwantedNetworkCapabilities = in.readLong();
netCap.mTransportTypes = in.readLong();
netCap.mLinkUpBandwidthKbps = in.readInt();
netCap.mLinkDownBandwidthKbps = in.readInt();
@@ -1248,6 +1320,11 @@ public final class NetworkCapabilities implements Parcelable {
appendStringRepresentationOfBitMaskToStringBuilder(sb, mNetworkCapabilities,
NetworkCapabilities::capabilityNameOf, "&");
}
if (0 != mNetworkCapabilities) {
sb.append(" Unwanted: ");
appendStringRepresentationOfBitMaskToStringBuilder(sb, mUnwantedNetworkCapabilities,
NetworkCapabilities::capabilityNameOf, "&");
}
if (mLinkUpBandwidthKbps > 0) {
sb.append(" LinkUpBandwidth>=").append(mLinkUpBandwidthKbps).append("Kbps");
}
@@ -1373,4 +1450,13 @@ public final class NetworkCapabilities implements Parcelable {
Preconditions.checkArgument(
isValidTransport(transport), "Invalid TransportType " + transport);
}
private static boolean isValidCapability(@NetworkCapabilities.NetCapability int capability) {
return capability >= MIN_NET_CAPABILITY && capability <= MAX_NET_CAPABILITY;
}
private static void checkValidCapability(@NetworkCapabilities.NetCapability int capability) {
Preconditions.checkArgument(isValidCapability(capability),
"NetworkCapability " + capability + "out of range");
}
}

24
core/java/android/net/NetworkRequest.java
View File

@@ -164,6 +164,9 @@ public class NetworkRequest implements Parcelable {
* the requested network's required capabilities. Note that when searching
* for a network to satisfy a request, all capabilities requested must be
* satisfied.
* <p>
* If the given capability was previously added to the list of unwanted capabilities
* then the capability will also be removed from the list of unwanted capabilities.
*
* @param capability The capability to add.
* @return The builder to facilitate chaining
@@ -175,7 +178,8 @@ public class NetworkRequest implements Parcelable {
}
/**
* Removes (if found) the given capability from this builder instance.
* Removes (if found) the given capability from this builder instance from both required
* and unwanted capabilities lists.
*
* @param capability The capability to remove.
* @return The builder to facilitate chaining.
@@ -199,6 +203,24 @@ public class NetworkRequest implements Parcelable {
return this;
}
/**
* Add a capability that must not exist in the requested network.
* <p>
* If the capability was previously added to the list of required capabilities (for
* example, it was there by default or added using {@link #addCapability(int)} method), then
* it will be removed from the list of required capabilities as well.
*
* @see #addCapability(int)
*
* @param capability The capability to add to unwanted capability list.
* @return The builder to facilitate chaining.
* @hide
*/
public Builder addUnwantedCapability(@NetworkCapabilities.NetCapability int capability) {
mNetworkCapabilities.addUnwantedCapability(capability);
return this;
}
/**
* Completely clears all the {@code NetworkCapabilities} from this builder instance,
* removing even the capabilities that are set by default when the object is constructed.