LineageOS/android_packages_modules_Connectivity
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[CLATJ#31] ClatCoordinator: tag raw socket to uid AID_CLAT

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Tag socket as uid AID_CLAT to avoid duplicated data usage counting by
bpf program.

Test: atest FrameworksNetTests
Test: check dumpsys for tag mapping and check logging for socket cookie

$ adb shell dumpsys connectivity trafficcontroller
  mCookieTagMap:
    cookie=28831 tag=0x0 uid=1029

03-02 22:43:13.201  1719  1921 I jniClatCoordinator: tag uid AID_CLAT to socket fd 609, cookie 28831
03-02 22:43:13.217  5496  5496 I clatd   : tunnel.write_fd6 609, cookie 28831, flags 0x0 (debug only)

Bug: 218407445
Change-Id: I67b9f30b143e791ddf59d5627e068ec3107e3328
This commit is contained in:
Hungming Chen
2022-02-11 18:09:26 +08:00
parent edf80c2da8
commit 89d12060e1
3 changed files with 82 additions and 0 deletions
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16
tests/unit/java/com/android/server/connectivity/ClatCoordinatorTest.java
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@@ -82,6 +82,7 @@ public class ClatCoordinatorTest {
private static final int TUN_FD = 534;
private static final int RAW_SOCK_FD = 535;
private static final int PACKET_SOCK_FD = 536;
private static final long RAW_SOCK_COOKIE = 27149;
private static final ParcelFileDescriptor TUN_PFD = new ParcelFileDescriptor(
new FileDescriptor());
private static final ParcelFileDescriptor RAW_SOCK_PFD = new ParcelFileDescriptor(
@@ -258,12 +259,25 @@ public class ClatCoordinatorTest {
/**
* Stop clatd.
*/
@Override
public void stopClatd(@NonNull String iface, @NonNull String pfx96, @NonNull String v4,
@NonNull String v6, int pid) throws IOException {
if (pid == -1) {
fail("unsupported arg: " + pid);
}
}
/**
* Tag socket as clat.
*/
@Override
public long tagSocketAsClat(@NonNull FileDescriptor sock) throws IOException {
if (Objects.equals(RAW_SOCK_PFD.getFileDescriptor(), sock)) {
return RAW_SOCK_COOKIE;
}
fail("unsupported arg: " + sock);
return 0;
}
};
@NonNull
@@ -326,6 +340,8 @@ public class ClatCoordinatorTest {
inOrder.verify(mDeps).addAnycastSetsockopt(
argThat(fd -> Objects.equals(RAW_SOCK_PFD.getFileDescriptor(), fd)),
eq(XLAT_LOCAL_IPV6ADDR_STRING), eq(BASE_IFINDEX));
inOrder.verify(mDeps).tagSocketAsClat(
argThat(fd -> Objects.equals(RAW_SOCK_PFD.getFileDescriptor(), fd)));
inOrder.verify(mDeps).configurePacketSocket(
argThat(fd -> Objects.equals(PACKET_SOCK_PFD.getFileDescriptor(), fd)),
eq(XLAT_LOCAL_IPV6ADDR_STRING), eq(BASE_IFINDEX));