diff --git a/staticlibs/device/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCfg.java b/staticlibs/device/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCfg.java
new file mode 100644
index 0000000..12f68c8
--- /dev/null
+++ b/staticlibs/device/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCfg.java
@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2023 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 com.android.net.module.util.netlink.xfrm;
+
+import static com.android.net.module.util.netlink.xfrm.XfrmNetlinkMessage.XFRM_INF;
+
+import androidx.annotation.NonNull;
+
+import com.android.net.module.util.Struct;
+
+import java.math.BigInteger;
+
+/**
+ * Struct xfrm_lifetime_cfg
+ *
+ * <p>see include/uapi/linux/xfrm.h
+ *
+ * <pre>
+ * struct xfrm_lifetime_cfg {
+ *      __u64 soft_byte_limit;
+ *      __u64 hard_byte_limit;
+ *      __u64 soft_packet_limit;
+ *      __u64 hard_packet_limit;
+ *      __u64 soft_add_expires_seconds;
+ *      __u64 hard_add_expires_seconds;
+ *      __u64 soft_use_expires_seconds;
+ *      __u64 hard_use_expires_seconds;
+ * };
+ * </pre>
+ *
+ * @hide
+ */
+public class StructXfrmLifetimeCfg extends Struct {
+    public static final int STRUCT_SIZE = 64;
+
+    @Field(order = 0, type = Type.U64)
+    public final BigInteger softByteLimit;
+
+    @Field(order = 1, type = Type.U64)
+    public final BigInteger hardByteLimit;
+
+    @Field(order = 2, type = Type.U64)
+    public final BigInteger softPacketLimit;
+
+    @Field(order = 3, type = Type.U64)
+    public final BigInteger hardPacketLimit;
+
+    @Field(order = 4, type = Type.U64)
+    public final BigInteger softAddExpiresSeconds;
+
+    @Field(order = 5, type = Type.U64)
+    public final BigInteger hardAddExpiresSeconds;
+
+    @Field(order = 6, type = Type.U64)
+    public final BigInteger softUseExpiresSeconds;
+
+    @Field(order = 7, type = Type.U64)
+    public final BigInteger hardUseExpiresSeconds;
+
+    // Constructor that allows Strutc.parse(Class<T>, ByteBuffer) to work
+    public StructXfrmLifetimeCfg(
+            @NonNull final BigInteger softByteLimit,
+            @NonNull final BigInteger hardByteLimit,
+            @NonNull final BigInteger softPacketLimit,
+            @NonNull final BigInteger hardPacketLimit,
+            @NonNull final BigInteger softAddExpiresSeconds,
+            @NonNull final BigInteger hardAddExpiresSeconds,
+            @NonNull final BigInteger softUseExpiresSeconds,
+            @NonNull final BigInteger hardUseExpiresSeconds) {
+        this.softByteLimit = softByteLimit;
+        this.hardByteLimit = hardByteLimit;
+        this.softPacketLimit = softPacketLimit;
+        this.hardPacketLimit = hardPacketLimit;
+        this.softAddExpiresSeconds = softAddExpiresSeconds;
+        this.hardAddExpiresSeconds = hardAddExpiresSeconds;
+        this.softUseExpiresSeconds = softUseExpiresSeconds;
+        this.hardUseExpiresSeconds = hardUseExpiresSeconds;
+    }
+
+    // Constructor to build a new message
+    public StructXfrmLifetimeCfg() {
+        this(
+                XFRM_INF,
+                XFRM_INF,
+                XFRM_INF,
+                XFRM_INF,
+                BigInteger.ZERO,
+                BigInteger.ZERO,
+                BigInteger.ZERO,
+                BigInteger.ZERO);
+    }
+}
diff --git a/staticlibs/device/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCur.java b/staticlibs/device/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCur.java
new file mode 100644
index 0000000..6a539c7
--- /dev/null
+++ b/staticlibs/device/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCur.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2023 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 com.android.net.module.util.netlink.xfrm;
+
+import androidx.annotation.NonNull;
+
+import com.android.net.module.util.Struct;
+
+import java.math.BigInteger;
+
+/**
+ * Struct xfrm_lifetime_cur
+ *
+ * <p>see include/uapi/linux/xfrm.h
+ *
+ * <pre>
+ * struct xfrm_lifetime_cur {
+ *      __u64 bytes;
+ *      __u64 packets;
+ *      __u64 add_time;
+ *      __u64 use_time;
+ * };
+ * </pre>
+ *
+ * @hide
+ */
+public class StructXfrmLifetimeCur extends Struct {
+    public static final int STRUCT_SIZE = 32;
+
+    @Field(order = 0, type = Type.U64)
+    public final BigInteger bytes;
+
+    @Field(order = 1, type = Type.U64)
+    public final BigInteger packets;
+
+    @Field(order = 2, type = Type.U64)
+    public final BigInteger addTime;
+
+    @Field(order = 3, type = Type.U64)
+    public final BigInteger useTime;
+
+    public StructXfrmLifetimeCur(
+            @NonNull final BigInteger bytes,
+            @NonNull final BigInteger packets,
+            @NonNull final BigInteger addTime,
+            @NonNull final BigInteger useTime) {
+        this.bytes = bytes;
+        this.packets = packets;
+        this.addTime = addTime;
+        this.useTime = useTime;
+    }
+}
diff --git a/staticlibs/device/com/android/net/module/util/netlink/xfrm/XfrmNetlinkMessage.java b/staticlibs/device/com/android/net/module/util/netlink/xfrm/XfrmNetlinkMessage.java
index e15342b..9773cd6 100644
--- a/staticlibs/device/com/android/net/module/util/netlink/xfrm/XfrmNetlinkMessage.java
+++ b/staticlibs/device/com/android/net/module/util/netlink/xfrm/XfrmNetlinkMessage.java
@@ -22,6 +22,7 @@
 import com.android.net.module.util.netlink.NetlinkMessage;
 import com.android.net.module.util.netlink.StructNlMsgHdr;
 
+import java.math.BigInteger;
 import java.nio.ByteBuffer;
 
 /** Base calss for XFRM netlink messages */
@@ -40,6 +41,8 @@
     public static final short XFRM_MSG_NEWSA = 16;
     public static final short XFRM_MSG_GETSA = 18;
 
+    public static final BigInteger XFRM_INF = new BigInteger("FFFFFFFFFFFFFFFF", 16);
+
     public XfrmNetlinkMessage(@NonNull final StructNlMsgHdr header) {
         super(header);
     }
diff --git a/staticlibs/tests/unit/src/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCfgTest.java b/staticlibs/tests/unit/src/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCfgTest.java
new file mode 100644
index 0000000..69360f6
--- /dev/null
+++ b/staticlibs/tests/unit/src/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCfgTest.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2023 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 com.android.net.module.util.netlink.xfrm;
+
+import static com.android.net.module.util.netlink.xfrm.XfrmNetlinkMessage.XFRM_INF;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import com.android.net.module.util.HexDump;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.math.BigInteger;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class StructXfrmLifetimeCfgTest {
+    private static final String EXPECTED_HEX_STRING =
+            "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
+                    + "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
+                    + "00000000000000000000000000000000"
+                    + "00000000000000000000000000000000";
+    private static final byte[] EXPECTED_HEX = HexDump.hexStringToByteArray(EXPECTED_HEX_STRING);
+
+    @Test
+    public void testEncode() throws Exception {
+        final StructXfrmLifetimeCfg struct = new StructXfrmLifetimeCfg();
+
+        final ByteBuffer buffer = ByteBuffer.allocate(EXPECTED_HEX.length);
+        buffer.order(ByteOrder.nativeOrder());
+        struct.writeToByteBuffer(buffer);
+
+        assertArrayEquals(EXPECTED_HEX, buffer.array());
+    }
+
+    @Test
+    public void testDecode() throws Exception {
+        final ByteBuffer buffer = ByteBuffer.wrap(EXPECTED_HEX);
+        buffer.order(ByteOrder.nativeOrder());
+        final StructXfrmLifetimeCfg struct =
+                StructXfrmLifetimeCfg.parse(StructXfrmLifetimeCfg.class, buffer);
+
+        assertEquals(XFRM_INF, struct.softByteLimit);
+        assertEquals(XFRM_INF, struct.hardByteLimit);
+        assertEquals(XFRM_INF, struct.softPacketLimit);
+        assertEquals(XFRM_INF, struct.hardPacketLimit);
+        assertEquals(BigInteger.ZERO, struct.softAddExpiresSeconds);
+        assertEquals(BigInteger.ZERO, struct.hardAddExpiresSeconds);
+        assertEquals(BigInteger.ZERO, struct.softUseExpiresSeconds);
+        assertEquals(BigInteger.ZERO, struct.hardUseExpiresSeconds);
+    }
+}
diff --git a/staticlibs/tests/unit/src/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCurTest.java b/staticlibs/tests/unit/src/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCurTest.java
new file mode 100644
index 0000000..38ef7ad
--- /dev/null
+++ b/staticlibs/tests/unit/src/com/android/net/module/util/netlink/xfrm/StructXfrmLifetimeCurTest.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2023 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 com.android.net.module.util.netlink.xfrm;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+
+import androidx.test.filters.SmallTest;
+import androidx.test.runner.AndroidJUnit4;
+
+import com.android.net.module.util.HexDump;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.math.BigInteger;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.Calendar;
+import java.util.concurrent.TimeUnit;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class StructXfrmLifetimeCurTest {
+    private static final String EXPECTED_HEX_STRING =
+            "00000000000000000000000000000000" + "8CFE4265000000000000000000000000";
+    private static final byte[] EXPECTED_HEX = HexDump.hexStringToByteArray(EXPECTED_HEX_STRING);
+    private static final BigInteger ADD_TIME;
+
+    static {
+        final Calendar cal = Calendar.getInstance();
+        cal.set(2023, Calendar.NOVEMBER, 2, 1, 42, 36);
+        final long timestampSeconds = TimeUnit.MILLISECONDS.toSeconds(cal.getTimeInMillis());
+        ADD_TIME = BigInteger.valueOf(timestampSeconds);
+    }
+
+    @Test
+    public void testEncode() throws Exception {
+        final StructXfrmLifetimeCur struct =
+                new StructXfrmLifetimeCur(
+                        BigInteger.ZERO, BigInteger.ZERO, ADD_TIME, BigInteger.ZERO);
+
+        final ByteBuffer buffer = ByteBuffer.allocate(EXPECTED_HEX.length);
+        buffer.order(ByteOrder.nativeOrder());
+        struct.writeToByteBuffer(buffer);
+
+        assertArrayEquals(EXPECTED_HEX, buffer.array());
+    }
+
+    @Test
+    public void testDecode() throws Exception {
+        final ByteBuffer buffer = ByteBuffer.wrap(EXPECTED_HEX);
+        buffer.order(ByteOrder.nativeOrder());
+        final StructXfrmLifetimeCur struct =
+                StructXfrmLifetimeCur.parse(StructXfrmLifetimeCur.class, buffer);
+
+        assertEquals(BigInteger.ZERO, struct.bytes);
+        assertEquals(BigInteger.ZERO, struct.packets);
+        assertEquals(ADD_TIME, struct.addTime);
+        assertEquals(BigInteger.ZERO, struct.useTime);
+    }
+}