BpfNetMaps - minor jni code fixups
(a) jni static methods take 'jclass clazz' as 2nd argument,
while non-static methods take 'jobject this/thiz/self'
(b) use a macro for error handling to remove duplicate code
(c) also fix some whitespace
Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I2773617dc7129efb87e28266f97ec3e01a35efc3
diff --git a/service/jni/com_android_server_BpfNetMaps.cpp b/service/jni/com_android_server_BpfNetMaps.cpp
index 7b1f59c..bc70c93 100644
--- a/service/jni/com_android_server_BpfNetMaps.cpp
+++ b/service/jni/com_android_server_BpfNetMaps.cpp
@@ -39,152 +39,126 @@
namespace android {
-static void native_init(JNIEnv* env, jobject clazz) {
+#define CHECK_LOG(status) \
+ do { \
+ if (!isOk(status)) \
+ ALOGE("%s failed, error code = %d", __func__, status.code()); \
+ } while (0)
+
+static void native_init(JNIEnv* env, jclass clazz) {
Status status = mTc.start();
- if (!isOk(status)) {
- ALOGE("%s failed, error code = %d", __func__, status.code());
- }
+ CHECK_LOG(status);
}
-static jint native_addNaughtyApp(JNIEnv* env, jobject clazz, jint uid) {
+static jint native_addNaughtyApp(JNIEnv* env, jobject self, jint uid) {
const uint32_t appUids = static_cast<uint32_t>(abs(uid));
Status status = mTc.updateUidOwnerMap(appUids, PENALTY_BOX_MATCH,
TrafficController::IptOp::IptOpInsert);
- if (!isOk(status)) {
- ALOGE("%s failed, error code = %d", __func__, status.code());
- }
+ CHECK_LOG(status);
return (jint)status.code();
}
-static jint native_removeNaughtyApp(JNIEnv* env, jobject clazz, jint uid) {
+static jint native_removeNaughtyApp(JNIEnv* env, jobject self, jint uid) {
const uint32_t appUids = static_cast<uint32_t>(abs(uid));
Status status = mTc.updateUidOwnerMap(appUids, PENALTY_BOX_MATCH,
TrafficController::IptOp::IptOpDelete);
- if (!isOk(status)) {
- ALOGE("%s failed, error code = %d", __func__, status.code());
- }
+ CHECK_LOG(status);
return (jint)status.code();
}
-static jint native_addNiceApp(JNIEnv* env, jobject clazz, jint uid) {
+static jint native_addNiceApp(JNIEnv* env, jobject self, jint uid) {
const uint32_t appUids = static_cast<uint32_t>(abs(uid));
Status status = mTc.updateUidOwnerMap(appUids, HAPPY_BOX_MATCH,
TrafficController::IptOp::IptOpInsert);
- if (!isOk(status)) {
- ALOGE("%s failed, error code = %d", __func__, status.code());
- }
+ CHECK_LOG(status);
return (jint)status.code();
}
-static jint native_removeNiceApp(JNIEnv* env, jobject clazz, jint uid) {
+static jint native_removeNiceApp(JNIEnv* env, jobject self, jint uid) {
const uint32_t appUids = static_cast<uint32_t>(abs(uid));
Status status = mTc.updateUidOwnerMap(appUids, HAPPY_BOX_MATCH,
TrafficController::IptOp::IptOpDelete);
- if (!isOk(status)) {
- ALOGD("%s failed, error code = %d", __func__, status.code());
- }
+ CHECK_LOG(status);
return (jint)status.code();
}
-static jint native_setChildChain(JNIEnv* env, jobject clazz, jint childChain, jboolean enable) {
+static jint native_setChildChain(JNIEnv* env, jobject self, jint childChain, jboolean enable) {
auto chain = static_cast<ChildChain>(childChain);
int res = mTc.toggleUidOwnerMap(chain, enable);
- if (res) {
- ALOGE("%s failed, error code = %d", __func__, res);
- }
+ if (res) ALOGE("%s failed, error code = %d", __func__, res);
return (jint)res;
}
-static jint native_replaceUidChain(JNIEnv* env, jobject clazz, jstring name, jboolean isAllowlist,
- jintArray jUids) {
+static jint native_replaceUidChain(JNIEnv* env, jobject self, jstring name, jboolean isAllowlist,
+ jintArray jUids) {
const ScopedUtfChars chainNameUtf8(env, name);
- if (chainNameUtf8.c_str() == nullptr) {
- return -EINVAL;
- }
+ if (chainNameUtf8.c_str() == nullptr) return -EINVAL;
const std::string chainName(chainNameUtf8.c_str());
ScopedIntArrayRO uids(env, jUids);
- if (uids.get() == nullptr) {
- return -EINVAL;
- }
+ if (uids.get() == nullptr) return -EINVAL;
size_t size = uids.size();
static_assert(sizeof(*(uids.get())) == sizeof(int32_t));
std::vector<int32_t> data ((int32_t *)&uids[0], (int32_t*)&uids[size]);
int res = mTc.replaceUidOwnerMap(chainName, isAllowlist, data);
- if (res) {
- ALOGE("%s failed, error code = %d", __func__, res);
- }
+ if (res) ALOGE("%s failed, error code = %d", __func__, res);
return (jint)res;
}
-static jint native_setUidRule(JNIEnv* env, jobject clazz, jint childChain, jint uid,
- jint firewallRule) {
+static jint native_setUidRule(JNIEnv* env, jobject self, jint childChain, jint uid,
+ jint firewallRule) {
auto chain = static_cast<ChildChain>(childChain);
auto rule = static_cast<FirewallRule>(firewallRule);
FirewallType fType = mTc.getFirewallType(chain);
int res = mTc.changeUidOwnerRule(chain, uid, rule, fType);
- if (res) {
- ALOGE("%s failed, error code = %d", __func__, res);
- }
+ if (res) ALOGE("%s failed, error code = %d", __func__, res);
return (jint)res;
}
-static jint native_addUidInterfaceRules(JNIEnv* env, jobject clazz, jstring ifName,
- jintArray jUids) {
+static jint native_addUidInterfaceRules(JNIEnv* env, jobject self, jstring ifName,
+ jintArray jUids) {
// Null ifName is a wildcard to allow apps to receive packets on all interfaces and ifIndex is
// set to 0.
- int ifIndex;
+ int ifIndex = 0;
if (ifName != nullptr) {
const ScopedUtfChars ifNameUtf8(env, ifName);
const std::string interfaceName(ifNameUtf8.c_str());
ifIndex = if_nametoindex(interfaceName.c_str());
- } else {
- ifIndex = 0;
}
ScopedIntArrayRO uids(env, jUids);
- if (uids.get() == nullptr) {
- return -EINVAL;
- }
+ if (uids.get() == nullptr) return -EINVAL;
size_t size = uids.size();
static_assert(sizeof(*(uids.get())) == sizeof(int32_t));
std::vector<int32_t> data ((int32_t *)&uids[0], (int32_t*)&uids[size]);
Status status = mTc.addUidInterfaceRules(ifIndex, data);
- if (!isOk(status)) {
- ALOGE("%s failed, error code = %d", __func__, status.code());
- }
+ CHECK_LOG(status);
return (jint)status.code();
}
-static jint native_removeUidInterfaceRules(JNIEnv* env, jobject clazz, jintArray jUids) {
+static jint native_removeUidInterfaceRules(JNIEnv* env, jobject self, jintArray jUids) {
ScopedIntArrayRO uids(env, jUids);
- if (uids.get() == nullptr) {
- return -EINVAL;
- }
+ if (uids.get() == nullptr) return -EINVAL;
size_t size = uids.size();
static_assert(sizeof(*(uids.get())) == sizeof(int32_t));
std::vector<int32_t> data ((int32_t *)&uids[0], (int32_t*)&uids[size]);
Status status = mTc.removeUidInterfaceRules(data);
- if (!isOk(status)) {
- ALOGE("%s failed, error code = %d", __func__, status.code());
- }
+ CHECK_LOG(status);
return (jint)status.code();
}
-static jint native_swapActiveStatsMap(JNIEnv* env, jobject clazz) {
+static jint native_swapActiveStatsMap(JNIEnv* env, jobject self) {
Status status = mTc.swapActiveStatsMap();
- if (!isOk(status)) {
- ALOGD("%s failed, error code = %d", __func__, status.code());
- }
+ CHECK_LOG(status);
return (jint)status.code();
}
-static void native_setPermissionForUids(JNIEnv* env, jobject clazz, jint permission,
- jintArray jUids) {
+static void native_setPermissionForUids(JNIEnv* env, jobject self, jint permission,
+ jintArray jUids) {
ScopedIntArrayRO uids(env, jUids);
if (uids.get() == nullptr) return;
@@ -194,7 +168,7 @@
mTc.setPermissionForUids(permission, data);
}
-static void native_dump(JNIEnv* env, jobject clazz, jobject javaFd, jboolean verbose) {
+static void native_dump(JNIEnv* env, jobject self, jobject javaFd, jboolean verbose) {
int fd = netjniutils::GetNativeFileDescriptor(env, javaFd);
if (fd < 0) {
jniThrowExceptionFmt(env, "java/io/IOException", "Invalid file descriptor");
@@ -239,9 +213,8 @@
// clang-format on
int register_com_android_server_BpfNetMaps(JNIEnv* env) {
- return jniRegisterNativeMethods(env,
- "com/android/server/BpfNetMaps",
- gMethods, NELEM(gMethods));
+ return jniRegisterNativeMethods(env, "com/android/server/BpfNetMaps",
+ gMethods, NELEM(gMethods));
}
}; // namespace android