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Merge changes from topic "removeNI"

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* changes:
  [FUI07] Stop making NetworkState with NetworkInfo from external callers
  [FUI06] Stop using NetworkInfo in NetworkState from external callers
This commit is contained in:
Junyu Lai
2021-02-09 03:37:59 +00:00
committed by Gerrit Code Review
parent 3088c8fab8 22d74f2833
commit 53cde33c97
2 changed files with 74 additions and 77 deletions
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8
core/java/android/net/NetworkIdentity.java
View File

@@ -32,7 +32,7 @@ import java.util.Objects;
/**
* Network definition that includes strong identity. Analogous to combining
* {@link NetworkInfo} and an IMSI.
* {@link NetworkCapabilities} and an IMSI.
*
* @hide
*/
@@ -160,7 +160,7 @@ public class NetworkIdentity implements Comparable<NetworkIdentity> {
*/
public static NetworkIdentity buildNetworkIdentity(Context context, NetworkState state,
boolean defaultNetwork, @NetworkType int subType) {
final int type = state.networkInfo.getType();
final int legacyType = state.legacyNetworkType;
String subscriberId = null;
String networkId = null;
@@ -171,7 +171,7 @@ public class NetworkIdentity implements Comparable<NetworkIdentity> {
subscriberId = state.subscriberId;
if (type == TYPE_WIFI) {
if (legacyType == TYPE_WIFI) {
if (state.networkCapabilities.getSsid() != null) {
networkId = state.networkCapabilities.getSsid();
if (networkId == null) {
@@ -184,7 +184,7 @@ public class NetworkIdentity implements Comparable<NetworkIdentity> {
}
}
return new NetworkIdentity(type, subType, subscriberId, networkId, roaming, metered,
return new NetworkIdentity(legacyType, subType, subscriberId, networkId, roaming, metered,
defaultNetwork);
}

143
services/core/java/com/android/server/net/NetworkStatsService.java
View File

@@ -96,7 +96,6 @@ import android.net.LinkProperties;
import android.net.Network;
import android.net.NetworkCapabilities;
import android.net.NetworkIdentity;
import android.net.NetworkInfo;
import android.net.NetworkStack;
import android.net.NetworkState;
import android.net.NetworkStats;
@@ -1264,7 +1263,7 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
/**
* Inspect all current {@link NetworkState} to derive mapping from {@code iface} to {@link
* NetworkStatsHistory}. When multiple {@link NetworkInfo} are active on a single {@code iface},
* NetworkStatsHistory}. When multiple networks are active on a single {@code iface},
* they are combined under a single {@link NetworkIdentitySet}.
*/
@GuardedBy("mStatsLock")
@@ -1294,84 +1293,82 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
final boolean combineSubtypeEnabled = mSettings.getCombineSubtypeEnabled();
final ArraySet<String> mobileIfaces = new ArraySet<>();
for (NetworkState state : states) {
if (state.networkInfo.isConnected()) {
final boolean isMobile = isNetworkTypeMobile(state.networkInfo.getType());
final boolean isDefault = ArrayUtils.contains(mDefaultNetworks, state.network);
final int subType = combineSubtypeEnabled ? SUBTYPE_COMBINED
: getSubTypeForState(state);
final NetworkIdentity ident = NetworkIdentity.buildNetworkIdentity(mContext, state,
isDefault, subType);
final boolean isMobile = isNetworkTypeMobile(state.legacyNetworkType);
final boolean isDefault = ArrayUtils.contains(mDefaultNetworks, state.network);
final int subType = combineSubtypeEnabled ? SUBTYPE_COMBINED
: getSubTypeForState(state);
final NetworkIdentity ident = NetworkIdentity.buildNetworkIdentity(mContext, state,
isDefault, subType);
// Traffic occurring on the base interface is always counted for
// both total usage and UID details.
final String baseIface = state.linkProperties.getInterfaceName();
if (baseIface != null) {
findOrCreateNetworkIdentitySet(mActiveIfaces, baseIface).add(ident);
findOrCreateNetworkIdentitySet(mActiveUidIfaces, baseIface).add(ident);
// Traffic occurring on the base interface is always counted for
// both total usage and UID details.
final String baseIface = state.linkProperties.getInterfaceName();
if (baseIface != null) {
findOrCreateNetworkIdentitySet(mActiveIfaces, baseIface).add(ident);
findOrCreateNetworkIdentitySet(mActiveUidIfaces, baseIface).add(ident);
// Build a separate virtual interface for VT (Video Telephony) data usage.
// Only do this when IMS is not metered, but VT is metered.
// If IMS is metered, then the IMS network usage has already included VT usage.
// VT is considered always metered in framework's layer. If VT is not metered
// per carrier's policy, modem will report 0 usage for VT calls.
if (state.networkCapabilities.hasCapability(
NetworkCapabilities.NET_CAPABILITY_IMS) && !ident.getMetered()) {
// Build a separate virtual interface for VT (Video Telephony) data usage.
// Only do this when IMS is not metered, but VT is metered.
// If IMS is metered, then the IMS network usage has already included VT usage.
// VT is considered always metered in framework's layer. If VT is not metered
// per carrier's policy, modem will report 0 usage for VT calls.
if (state.networkCapabilities.hasCapability(
NetworkCapabilities.NET_CAPABILITY_IMS) && !ident.getMetered()) {
// Copy the identify from IMS one but mark it as metered.
NetworkIdentity vtIdent = new NetworkIdentity(ident.getType(),
ident.getSubType(), ident.getSubscriberId(), ident.getNetworkId(),
ident.getRoaming(), true /* metered */,
true /* onDefaultNetwork */);
findOrCreateNetworkIdentitySet(mActiveIfaces, IFACE_VT).add(vtIdent);
findOrCreateNetworkIdentitySet(mActiveUidIfaces, IFACE_VT).add(vtIdent);
}
if (isMobile) {
mobileIfaces.add(baseIface);
}
// Copy the identify from IMS one but mark it as metered.
NetworkIdentity vtIdent = new NetworkIdentity(ident.getType(),
ident.getSubType(), ident.getSubscriberId(), ident.getNetworkId(),
ident.getRoaming(), true /* metered */,
true /* onDefaultNetwork */);
findOrCreateNetworkIdentitySet(mActiveIfaces, IFACE_VT).add(vtIdent);
findOrCreateNetworkIdentitySet(mActiveUidIfaces, IFACE_VT).add(vtIdent);
}
// Traffic occurring on stacked interfaces is usually clatd.
//
// UID stats are always counted on the stacked interface and never on the base
// interface, because the packets on the base interface do not actually match
// application sockets (they're not IPv4) and thus the app uid is not known.
// For receive this is obvious: packets must be translated from IPv6 to IPv4
// before the application socket can be found.
// For transmit: either they go through the clat daemon which by virtue of going
// through userspace strips the original socket association during the IPv4 to
// IPv6 translation process, or they are offloaded by eBPF, which doesn't:
// However, on an ebpf device the accounting is done in cgroup ebpf hooks,
// which don't trigger again post ebpf translation.
// (as such stats accounted to the clat uid are ignored)
//
// Interface stats are more complicated.
//
// eBPF offloaded 464xlat'ed packets never hit base interface ip6tables, and thus
// *all* statistics are collected by iptables on the stacked v4-* interface.
//
// Additionally for ingress all packets bound for the clat IPv6 address are dropped
// in ip6tables raw prerouting and thus even non-offloaded packets are only
// accounted for on the stacked interface.
//
// For egress, packets subject to eBPF offload never appear on the base interface
// and only appear on the stacked interface. Thus to ensure packets increment
// interface stats, we must collate data from stacked interfaces. For xt_qtaguid
// (or non eBPF offloaded) TX they would appear on both, however egress interface
// accounting is explicitly bypassed for traffic from the clat uid.
//
final List<LinkProperties> stackedLinks = state.linkProperties.getStackedLinks();
for (LinkProperties stackedLink : stackedLinks) {
final String stackedIface = stackedLink.getInterfaceName();
if (stackedIface != null) {
findOrCreateNetworkIdentitySet(mActiveIfaces, stackedIface).add(ident);
findOrCreateNetworkIdentitySet(mActiveUidIfaces, stackedIface).add(ident);
if (isMobile) {
mobileIfaces.add(stackedIface);
}
if (isMobile) {
mobileIfaces.add(baseIface);
}
}
mStatsFactory.noteStackedIface(stackedIface, baseIface);
// Traffic occurring on stacked interfaces is usually clatd.
//
// UID stats are always counted on the stacked interface and never on the base
// interface, because the packets on the base interface do not actually match
// application sockets (they're not IPv4) and thus the app uid is not known.
// For receive this is obvious: packets must be translated from IPv6 to IPv4
// before the application socket can be found.
// For transmit: either they go through the clat daemon which by virtue of going
// through userspace strips the original socket association during the IPv4 to
// IPv6 translation process, or they are offloaded by eBPF, which doesn't:
// However, on an ebpf device the accounting is done in cgroup ebpf hooks,
// which don't trigger again post ebpf translation.
// (as such stats accounted to the clat uid are ignored)
//
// Interface stats are more complicated.
//
// eBPF offloaded 464xlat'ed packets never hit base interface ip6tables, and thus
// *all* statistics are collected by iptables on the stacked v4-* interface.
//
// Additionally for ingress all packets bound for the clat IPv6 address are dropped
// in ip6tables raw prerouting and thus even non-offloaded packets are only
// accounted for on the stacked interface.
//
// For egress, packets subject to eBPF offload never appear on the base interface
// and only appear on the stacked interface. Thus to ensure packets increment
// interface stats, we must collate data from stacked interfaces. For xt_qtaguid
// (or non eBPF offloaded) TX they would appear on both, however egress interface
// accounting is explicitly bypassed for traffic from the clat uid.
//
final List<LinkProperties> stackedLinks = state.linkProperties.getStackedLinks();
for (LinkProperties stackedLink : stackedLinks) {
final String stackedIface = stackedLink.getInterfaceName();
if (stackedIface != null) {
findOrCreateNetworkIdentitySet(mActiveIfaces, stackedIface).add(ident);
findOrCreateNetworkIdentitySet(mActiveUidIfaces, stackedIface).add(ident);
if (isMobile) {
mobileIfaces.add(stackedIface);
}
mStatsFactory.noteStackedIface(stackedIface, baseIface);
}
}
}