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-rw-r--r--services/net/java/android/net/apf/ApfFilter.java2
-rw-r--r--tests/net/java/android/net/apf/ApfTest.java41
-rw-r--r--tests/net/jni/apf_jni.cpp101
-rw-r--r--tests/net/res/raw/apfPcap.pcapbin0 -> 101547 bytes
4 files changed, 116 insertions, 28 deletions
diff --git a/services/net/java/android/net/apf/ApfFilter.java b/services/net/java/android/net/apf/ApfFilter.java
index a7209a076461..b9cc372c5138 100644
--- a/services/net/java/android/net/apf/ApfFilter.java
+++ b/services/net/java/android/net/apf/ApfFilter.java
@@ -111,7 +111,7 @@ public class ApfFilter {
* the last writable 32bit word.
*/
@VisibleForTesting
- private static enum Counter {
+ public static enum Counter {
RESERVED_OOB, // Points to offset 0 from the end of the buffer (out-of-bounds)
TOTAL_PACKETS,
PASSED_ARP,
diff --git a/tests/net/java/android/net/apf/ApfTest.java b/tests/net/java/android/net/apf/ApfTest.java
index 983802035bfb..436dd859beca 100644
--- a/tests/net/java/android/net/apf/ApfTest.java
+++ b/tests/net/java/android/net/apf/ApfTest.java
@@ -46,6 +46,7 @@ import android.support.test.runner.AndroidJUnit4;
import android.system.ErrnoException;
import android.system.Os;
import android.text.format.DateUtils;
+import android.util.Log;
import com.android.frameworks.tests.net.R;
import com.android.internal.util.HexDump;
import java.io.File;
@@ -89,6 +90,7 @@ public class ApfTest {
System.loadLibrary("frameworksnettestsjni");
}
+ private static final String TAG = "ApfTest";
// Expected return codes from APF interpreter.
private static final int PASS = 1;
private static final int DROP = 0;
@@ -869,6 +871,37 @@ public class ApfTest {
}
}
+ /**
+ * Generate APF program, run pcap file though APF filter, then check all the packets in the file
+ * should be dropped.
+ */
+ @Test
+ public void testApfFilterPcapFile() throws Exception {
+ final byte[] MOCK_PCAP_IPV4_ADDR = {(byte) 172, 16, 7, (byte) 151};
+ String pcapFilename = stageFile(R.raw.apfPcap);
+ MockIpClientCallback ipClientCallback = new MockIpClientCallback();
+ LinkAddress link = new LinkAddress(InetAddress.getByAddress(MOCK_PCAP_IPV4_ADDR), 16);
+ LinkProperties lp = new LinkProperties();
+ lp.addLinkAddress(link);
+
+ ApfConfiguration config = getDefaultConfig();
+ ApfCapabilities MOCK_APF_PCAP_CAPABILITIES = new ApfCapabilities(4, 1700, ARPHRD_ETHER);
+ config.apfCapabilities = MOCK_APF_PCAP_CAPABILITIES;
+ config.multicastFilter = DROP_MULTICAST;
+ config.ieee802_3Filter = DROP_802_3_FRAMES;
+ TestApfFilter apfFilter = new TestApfFilter(mContext, config, ipClientCallback, mLog);
+ apfFilter.setLinkProperties(lp);
+ byte[] program = ipClientCallback.getApfProgram();
+ byte[] data = new byte[ApfFilter.Counter.totalSize()];
+ final boolean result;
+
+ result = dropsAllPackets(program, data, pcapFilename);
+ Log.i(TAG, "testApfFilterPcapFile(): Data counters: " + HexDump.toHexString(data, false));
+
+ assertTrue("Failed to drop all packets by filter. \nAPF counters:" +
+ HexDump.toHexString(data, false), result);
+ }
+
private class MockIpClientCallback extends IpClient.Callback {
private final ConditionVariable mGotApfProgram = new ConditionVariable();
private byte[] mLastApfProgram;
@@ -1706,6 +1739,14 @@ public class ApfTest {
private native static boolean compareBpfApf(String filter, String pcap_filename,
byte[] apf_program);
+
+ /**
+ * Open packet capture file {@code pcapFilename} and run it through APF filter. Then
+ * checks whether all the packets are dropped and populates data[] {@code data} with
+ * the APF counters.
+ */
+ private native static boolean dropsAllPackets(byte[] program, byte[] data, String pcapFilename);
+
@Test
public void testBroadcastAddress() throws Exception {
assertEqualsIp("255.255.255.255", ApfFilter.ipv4BroadcastAddress(IPV4_ANY_HOST_ADDR, 0));
diff --git a/tests/net/jni/apf_jni.cpp b/tests/net/jni/apf_jni.cpp
index 1ea9e274ab9e..4222adf9e06b 100644
--- a/tests/net/jni/apf_jni.cpp
+++ b/tests/net/jni/apf_jni.cpp
@@ -21,37 +21,40 @@
#include <stdlib.h>
#include <string>
#include <utils/Log.h>
+#include <vector>
#include "apf_interpreter.h"
+#include "nativehelper/scoped_primitive_array.h"
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
// JNI function acting as simply call-through to native APF interpreter.
static jint com_android_server_ApfTest_apfSimulate(
- JNIEnv* env, jclass, jbyteArray program, jbyteArray packet,
- jbyteArray data, jint filter_age) {
- uint8_t* program_raw = (uint8_t*)env->GetByteArrayElements(program, nullptr);
- uint8_t* packet_raw = (uint8_t*)env->GetByteArrayElements(packet, nullptr);
- uint8_t* data_raw = (uint8_t*)(data ? env->GetByteArrayElements(data, nullptr) : nullptr);
- uint32_t program_len = env->GetArrayLength(program);
- uint32_t packet_len = env->GetArrayLength(packet);
- uint32_t data_len = data ? env->GetArrayLength(data) : 0;
-
- // Merge program and data into a single buffer.
- uint8_t* program_and_data = (uint8_t*)malloc(program_len + data_len);
- memcpy(program_and_data, program_raw, program_len);
- memcpy(program_and_data + program_len, data_raw, data_len);
+ JNIEnv* env, jclass, jbyteArray jprogram, jbyteArray jpacket,
+ jbyteArray jdata, jint filter_age) {
+
+ ScopedByteArrayRO packet(env, jpacket);
+ uint32_t packet_len = (uint32_t)packet.size();
+ uint32_t program_len = env->GetArrayLength(jprogram);
+ uint32_t data_len = jdata ? env->GetArrayLength(jdata) : 0;
+ std::vector<uint8_t> buf(program_len + data_len, 0);
+
+ env->GetByteArrayRegion(jprogram, 0, program_len, reinterpret_cast<jbyte*>(buf.data()));
+ if (jdata) {
+ // Merge program and data into a single buffer.
+ env->GetByteArrayRegion(jdata, 0, data_len,
+ reinterpret_cast<jbyte*>(buf.data() + program_len));
+ }
jint result =
- accept_packet(program_and_data, program_len, program_len + data_len,
- packet_raw, packet_len, filter_age);
- if (data) {
- memcpy(data_raw, program_and_data + program_len, data_len);
- env->ReleaseByteArrayElements(data, (jbyte*)data_raw, 0 /* copy back */);
- }
- free(program_and_data);
- env->ReleaseByteArrayElements(packet, (jbyte*)packet_raw, JNI_ABORT);
- env->ReleaseByteArrayElements(program, (jbyte*)program_raw, JNI_ABORT);
+ accept_packet(buf.data(), program_len, program_len + data_len,
+ reinterpret_cast<const uint8_t*>(packet.get()), packet_len, filter_age);
+
+ if (jdata) {
+ env->SetByteArrayRegion(jdata, 0, data_len,
+ reinterpret_cast<jbyte*>(buf.data() + program_len));
+ }
+
return result;
}
@@ -118,8 +121,7 @@ static jboolean com_android_server_ApfTest_compareBpfApf(JNIEnv* env, jclass, js
jstring jpcap_filename, jbyteArray japf_program) {
ScopedUtfChars filter(env, jfilter);
ScopedUtfChars pcap_filename(env, jpcap_filename);
- uint8_t* apf_program = (uint8_t*)env->GetByteArrayElements(japf_program, NULL);
- uint32_t apf_program_len = env->GetArrayLength(japf_program);
+ ScopedByteArrayRO apf_program(env, japf_program);
// Open pcap file for BPF filtering
ScopedFILE bpf_fp(fopen(pcap_filename.c_str(), "rb"));
@@ -161,14 +163,15 @@ static jboolean com_android_server_ApfTest_compareBpfApf(JNIEnv* env, jclass, js
do {
apf_packet = pcap_next(apf_pcap.get(), &apf_header);
} while (apf_packet != NULL && !accept_packet(
- apf_program, apf_program_len, 0 /* data_len */,
+ reinterpret_cast<uint8_t*>(const_cast<int8_t*>(apf_program.get())),
+ apf_program.size(), 0 /* data_len */,
apf_packet, apf_header.len, 0 /* filter_age */));
// Make sure both filters matched the same packet.
if (apf_packet == NULL && bpf_packet == NULL)
- break;
+ break;
if (apf_packet == NULL || bpf_packet == NULL)
- return false;
+ return false;
if (apf_header.len != bpf_header.len ||
apf_header.ts.tv_sec != bpf_header.ts.tv_sec ||
apf_header.ts.tv_usec != bpf_header.ts.tv_usec ||
@@ -178,6 +181,48 @@ static jboolean com_android_server_ApfTest_compareBpfApf(JNIEnv* env, jclass, js
return true;
}
+static jboolean com_android_server_ApfTest_dropsAllPackets(JNIEnv* env, jclass, jbyteArray jprogram,
+ jbyteArray jdata, jstring jpcap_filename) {
+ ScopedUtfChars pcap_filename(env, jpcap_filename);
+ ScopedByteArrayRO apf_program(env, jprogram);
+ uint32_t apf_program_len = (uint32_t)apf_program.size();
+ uint32_t data_len = env->GetArrayLength(jdata);
+ pcap_pkthdr apf_header;
+ const uint8_t* apf_packet;
+ char pcap_error[PCAP_ERRBUF_SIZE];
+ std::vector<uint8_t> buf(apf_program_len + data_len, 0);
+
+ // Merge program and data into a single buffer.
+ env->GetByteArrayRegion(jprogram, 0, apf_program_len, reinterpret_cast<jbyte*>(buf.data()));
+ env->GetByteArrayRegion(jdata, 0, data_len,
+ reinterpret_cast<jbyte*>(buf.data() + apf_program_len));
+
+ // Open pcap file
+ ScopedFILE apf_fp(fopen(pcap_filename.c_str(), "rb"));
+ ScopedPcap apf_pcap(pcap_fopen_offline(apf_fp.get(), pcap_error));
+
+ if (apf_pcap.get() == NULL) {
+ throwException(env, "pcap_fopen_offline failed: " + std::string(pcap_error));
+ return false;
+ }
+
+ while ((apf_packet = pcap_next(apf_pcap.get(), &apf_header)) != NULL) {
+ int result = accept_packet(buf.data(), apf_program_len,
+ apf_program_len + data_len, apf_packet, apf_header.len, 0);
+
+ // Return false once packet passes the filter
+ if (result) {
+ env->SetByteArrayRegion(jdata, 0, data_len,
+ reinterpret_cast<jbyte*>(buf.data() + apf_program_len));
+ return false;
+ }
+ }
+
+ env->SetByteArrayRegion(jdata, 0, data_len,
+ reinterpret_cast<jbyte*>(buf.data() + apf_program_len));
+ return true;
+}
+
extern "C" jint JNI_OnLoad(JavaVM* vm, void*) {
JNIEnv *env;
if (vm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
@@ -192,6 +237,8 @@ extern "C" jint JNI_OnLoad(JavaVM* vm, void*) {
(void*)com_android_server_ApfTest_compileToBpf },
{ "compareBpfApf", "(Ljava/lang/String;Ljava/lang/String;[B)Z",
(void*)com_android_server_ApfTest_compareBpfApf },
+ { "dropsAllPackets", "([B[BLjava/lang/String;)Z",
+ (void*)com_android_server_ApfTest_dropsAllPackets },
};
jniRegisterNativeMethods(env, "android/net/apf/ApfTest",
diff --git a/tests/net/res/raw/apfPcap.pcap b/tests/net/res/raw/apfPcap.pcap
new file mode 100644
index 000000000000..6f69c4add0f8
--- /dev/null
+++ b/tests/net/res/raw/apfPcap.pcap
Binary files differ
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-12-30 07:45:52 +0000