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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.net.metrics;
import android.annotation.NonNull;
import android.annotation.SystemApi;
import android.annotation.TestApi;
import android.os.Parcel;
import android.os.Parcelable;
/**
* An event logged when the APF packet socket receives an RA packet.
* {@hide}
*/
@SystemApi
@TestApi
public final class RaEvent implements IpConnectivityLog.Event {
private static final long NO_LIFETIME = -1L;
// Lifetime in seconds of options found in a single RA packet.
// When an option is not set, the value of the associated field is -1;
/** @hide */
public final long routerLifetime;
/** @hide */
public final long prefixValidLifetime;
/** @hide */
public final long prefixPreferredLifetime;
/** @hide */
public final long routeInfoLifetime;
/** @hide */
public final long rdnssLifetime;
/** @hide */
public final long dnsslLifetime;
/** @hide */
public RaEvent(long routerLifetime, long prefixValidLifetime, long prefixPreferredLifetime,
long routeInfoLifetime, long rdnssLifetime, long dnsslLifetime) {
this.routerLifetime = routerLifetime;
this.prefixValidLifetime = prefixValidLifetime;
this.prefixPreferredLifetime = prefixPreferredLifetime;
this.routeInfoLifetime = routeInfoLifetime;
this.rdnssLifetime = rdnssLifetime;
this.dnsslLifetime = dnsslLifetime;
}
/** @hide */
private RaEvent(Parcel in) {
routerLifetime = in.readLong();
prefixValidLifetime = in.readLong();
prefixPreferredLifetime = in.readLong();
routeInfoLifetime = in.readLong();
rdnssLifetime = in.readLong();
dnsslLifetime = in.readLong();
}
/** @hide */
@Override
public void writeToParcel(Parcel out, int flags) {
out.writeLong(routerLifetime);
out.writeLong(prefixValidLifetime);
out.writeLong(prefixPreferredLifetime);
out.writeLong(routeInfoLifetime);
out.writeLong(rdnssLifetime);
out.writeLong(dnsslLifetime);
}
/** @hide */
@Override
public int describeContents() {
return 0;
}
@Override
public String toString() {
return new StringBuilder("RaEvent(lifetimes: ")
.append(String.format("router=%ds, ", routerLifetime))
.append(String.format("prefix_valid=%ds, ", prefixValidLifetime))
.append(String.format("prefix_preferred=%ds, ", prefixPreferredLifetime))
.append(String.format("route_info=%ds, ", routeInfoLifetime))
.append(String.format("rdnss=%ds, ", rdnssLifetime))
.append(String.format("dnssl=%ds)", dnsslLifetime))
.toString();
}
@Override
public boolean equals(Object obj) {
if (obj == null || !(obj.getClass().equals(RaEvent.class))) return false;
final RaEvent other = (RaEvent) obj;
return routerLifetime == other.routerLifetime
&& prefixValidLifetime == other.prefixValidLifetime
&& prefixPreferredLifetime == other.prefixPreferredLifetime
&& routeInfoLifetime == other.routeInfoLifetime
&& rdnssLifetime == other.rdnssLifetime
&& dnsslLifetime == other.dnsslLifetime;
}
/** @hide */
public static final @android.annotation.NonNull Parcelable.Creator<RaEvent> CREATOR = new Parcelable.Creator<RaEvent>() {
public RaEvent createFromParcel(Parcel in) {
return new RaEvent(in);
}
public RaEvent[] newArray(int size) {
return new RaEvent[size];
}
};
public static final class Builder {
long routerLifetime = NO_LIFETIME;
long prefixValidLifetime = NO_LIFETIME;
long prefixPreferredLifetime = NO_LIFETIME;
long routeInfoLifetime = NO_LIFETIME;
long rdnssLifetime = NO_LIFETIME;
long dnsslLifetime = NO_LIFETIME;
public Builder() {
}
public @NonNull RaEvent build() {
return new RaEvent(routerLifetime, prefixValidLifetime, prefixPreferredLifetime,
routeInfoLifetime, rdnssLifetime, dnsslLifetime);
}
public @NonNull Builder updateRouterLifetime(long lifetime) {
routerLifetime = updateLifetime(routerLifetime, lifetime);
return this;
}
public @NonNull Builder updatePrefixValidLifetime(long lifetime) {
prefixValidLifetime = updateLifetime(prefixValidLifetime, lifetime);
return this;
}
public @NonNull Builder updatePrefixPreferredLifetime(long lifetime) {
prefixPreferredLifetime = updateLifetime(prefixPreferredLifetime, lifetime);
return this;
}
public @NonNull Builder updateRouteInfoLifetime(long lifetime) {
routeInfoLifetime = updateLifetime(routeInfoLifetime, lifetime);
return this;
}
public @NonNull Builder updateRdnssLifetime(long lifetime) {
rdnssLifetime = updateLifetime(rdnssLifetime, lifetime);
return this;
}
public @NonNull Builder updateDnsslLifetime(long lifetime) {
dnsslLifetime = updateLifetime(dnsslLifetime, lifetime);
return this;
}
private long updateLifetime(long currentLifetime, long newLifetime) {
if (currentLifetime == RaEvent.NO_LIFETIME) {
return newLifetime;
}
return Math.min(currentLifetime, newLifetime);
}
}
}
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