Merge "Read binder stats from binderfs"
diff --git a/cmds/dumpstate/dumpstate.cpp b/cmds/dumpstate/dumpstate.cpp
index aa627d7..4e14efb 100644
--- a/cmds/dumpstate/dumpstate.cpp
+++ b/cmds/dumpstate/dumpstate.cpp
@@ -135,6 +135,11 @@
static char cmdline_buf[16384] = "(unknown)";
static const char *dump_traces_path = nullptr;
static const uint64_t USER_CONSENT_TIMEOUT_MS = 30 * 1000;
+// Because telephony reports are significantly faster to collect (< 10 seconds vs. > 2 minutes),
+// it's often the case that they time out far too quickly for consent with such a hefty dialog for
+// the user to read. For telephony reports only, we increase the default timeout to 2 minutes to
+// roughly match full reports' durations.
+static const uint64_t TELEPHONY_REPORT_USER_CONSENT_TIMEOUT_MS = 2 * 60 * 1000;
// TODO: variables and functions below should be part of dumpstate object
@@ -890,6 +895,14 @@
CommandOptions::WithTimeoutInMs(timeout_ms).Build());
}
+static void DoRadioLogcat() {
+ unsigned long timeout_ms = logcat_timeout({"radio"});
+ RunCommand(
+ "RADIO LOG",
+ {"logcat", "-b", "radio", "-v", "threadtime", "-v", "printable", "-v", "uid", "-d", "*:v"},
+ CommandOptions::WithTimeoutInMs(timeout_ms).Build(), true /* verbose_duration */);
+}
+
static void DoLogcat() {
unsigned long timeout_ms;
// DumpFile("EVENT LOG TAGS", "/etc/event-log-tags");
@@ -908,11 +921,7 @@
"STATS LOG",
{"logcat", "-b", "stats", "-v", "threadtime", "-v", "printable", "-v", "uid", "-d", "*:v"},
CommandOptions::WithTimeoutInMs(timeout_ms).Build(), true /* verbose_duration */);
- timeout_ms = logcat_timeout({"radio"});
- RunCommand(
- "RADIO LOG",
- {"logcat", "-b", "radio", "-v", "threadtime", "-v", "printable", "-v", "uid", "-d", "*:v"},
- CommandOptions::WithTimeoutInMs(timeout_ms).Build(), true /* verbose_duration */);
+ DoRadioLogcat();
RunCommand("LOG STATISTICS", {"logcat", "-b", "all", "-S"});
@@ -1602,8 +1611,10 @@
return status;
}
-// This method collects common dumpsys for telephony and wifi
-static void DumpstateRadioCommon() {
+// This method collects common dumpsys for telephony and wifi. Typically, wifi
+// reports are fine to include all information, but telephony reports on user
+// builds need to strip some content (see DumpstateTelephonyOnly).
+static void DumpstateRadioCommon(bool include_sensitive_info = true) {
DumpIpTablesAsRoot();
ds.AddDir(LOGPERSIST_DATA_DIR, false);
@@ -1612,26 +1623,51 @@
return;
}
- do_dmesg();
- DoLogcat();
+ // We need to be picky about some stuff for telephony reports on user builds.
+ if (!include_sensitive_info) {
+ // Only dump the radio log buffer (other buffers and dumps contain too much unrelated info).
+ DoRadioLogcat();
+ } else {
+ // Contains various system properties and process startup info.
+ do_dmesg();
+ // Logs other than the radio buffer may contain package/component names and potential PII.
+ DoLogcat();
+ // Too broad for connectivity problems.
+ DoKmsg();
+ // Contains unrelated hardware info (camera, NFC, biometrics, ...).
+ DumpHals();
+ }
+
DumpPacketStats();
- DoKmsg();
DumpIpAddrAndRules();
dump_route_tables();
- DumpHals();
-
RunDumpsys("NETWORK DIAGNOSTICS", {"connectivity", "--diag"},
CommandOptions::WithTimeout(10).Build());
}
-// This method collects dumpsys for telephony debugging only
+// We use "telephony" here for legacy reasons, though this now really means "connectivity" (cellular
+// + wifi + networking). This method collects dumpsys for connectivity debugging only. General rules
+// for what can be included on user builds: all reported information MUST directly relate to
+// connectivity debugging or customer support and MUST NOT contain unrelated personally identifiable
+// information. This information MUST NOT identify user-installed packages (UIDs are OK, package
+// names are not), and MUST NOT contain logs of user application traffic.
+// TODO(b/148168577) rename this and other related fields/methods to "connectivity" instead.
static void DumpstateTelephonyOnly() {
DurationReporter duration_reporter("DUMPSTATE");
+
const CommandOptions DUMPSYS_COMPONENTS_OPTIONS = CommandOptions::WithTimeout(60).Build();
- DumpstateRadioCommon();
+ const bool include_sensitive_info = !PropertiesHelper::IsUserBuild();
- RunCommand("SYSTEM PROPERTIES", {"getprop"});
+ DumpstateRadioCommon(include_sensitive_info);
+
+ if (include_sensitive_info) {
+ // Contains too much unrelated PII, and given the unstructured nature of sysprops, we can't
+ // really cherrypick all of the connectivity-related ones. Apps generally have no business
+ // reading these anyway, and there should be APIs to supply the info in a more app-friendly
+ // way.
+ RunCommand("SYSTEM PROPERTIES", {"getprop"});
+ }
printf("========================================================\n");
printf("== Android Framework Services\n");
@@ -1639,15 +1675,28 @@
RunDumpsys("DUMPSYS", {"connectivity"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
- RunDumpsys("DUMPSYS", {"connmetrics"}, CommandOptions::WithTimeout(90).Build(),
- SEC_TO_MSEC(10));
- RunDumpsys("DUMPSYS", {"netd"}, CommandOptions::WithTimeout(90).Build(), SEC_TO_MSEC(10));
+ // TODO(b/146521742) build out an argument to include bound services here for user builds
RunDumpsys("DUMPSYS", {"carrier_config"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
RunDumpsys("DUMPSYS", {"wifi"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
- RunDumpsys("BATTERYSTATS", {"batterystats"}, CommandOptions::WithTimeout(90).Build(),
+ RunDumpsys("DUMPSYS", {"netpolicy"}, CommandOptions::WithTimeout(90).Build(), SEC_TO_MSEC(10));
+ RunDumpsys("DUMPSYS", {"network_management"}, CommandOptions::WithTimeout(90).Build(),
SEC_TO_MSEC(10));
+ if (include_sensitive_info) {
+ // Contains raw IP addresses, omit from reports on user builds.
+ RunDumpsys("DUMPSYS", {"netd"}, CommandOptions::WithTimeout(90).Build(), SEC_TO_MSEC(10));
+ // Contains raw destination IP/MAC addresses, omit from reports on user builds.
+ RunDumpsys("DUMPSYS", {"connmetrics"}, CommandOptions::WithTimeout(90).Build(),
+ SEC_TO_MSEC(10));
+ // Contains package/component names, omit from reports on user builds.
+ RunDumpsys("BATTERYSTATS", {"batterystats"}, CommandOptions::WithTimeout(90).Build(),
+ SEC_TO_MSEC(10));
+ // Contains package names, but should be relatively simple to remove them (also contains
+ // UIDs already), omit from reports on user builds.
+ RunDumpsys("BATTERYSTATS", {"deviceidle"}, CommandOptions::WithTimeout(90).Build(),
+ SEC_TO_MSEC(10));
+ }
printf("========================================================\n");
printf("== Running Application Services\n");
@@ -1655,18 +1704,24 @@
RunDumpsys("TELEPHONY SERVICES", {"activity", "service", "TelephonyDebugService"});
- printf("========================================================\n");
- printf("== Running Application Services (non-platform)\n");
- printf("========================================================\n");
+ if (include_sensitive_info) {
+ printf("========================================================\n");
+ printf("== Running Application Services (non-platform)\n");
+ printf("========================================================\n");
- RunDumpsys("APP SERVICES NON-PLATFORM", {"activity", "service", "all-non-platform"},
- DUMPSYS_COMPONENTS_OPTIONS);
+ // Contains package/component names and potential PII, omit from reports on user builds.
+ // To get dumps of the active CarrierService(s) on user builds, we supply an argument to the
+ // carrier_config dumpsys instead.
+ RunDumpsys("APP SERVICES NON-PLATFORM", {"activity", "service", "all-non-platform"},
+ DUMPSYS_COMPONENTS_OPTIONS);
- printf("========================================================\n");
- printf("== Checkins\n");
- printf("========================================================\n");
+ printf("========================================================\n");
+ printf("== Checkins\n");
+ printf("========================================================\n");
- RunDumpsys("CHECKIN BATTERYSTATS", {"batterystats", "-c"});
+ // Contains package/component names, omit from reports on user builds.
+ RunDumpsys("CHECKIN BATTERYSTATS", {"batterystats", "-c"});
+ }
printf("========================================================\n");
printf("== dumpstate: done (id %d)\n", ds.id_);
@@ -2278,6 +2333,7 @@
break;
case Dumpstate::BugreportMode::BUGREPORT_TELEPHONY:
options->telephony_only = true;
+ options->do_progress_updates = true;
options->do_fb = false;
options->do_broadcast = true;
break;
@@ -2828,8 +2884,13 @@
if (consent_result == UserConsentResult::UNAVAILABLE) {
// User has not responded yet.
uint64_t elapsed_ms = consent_callback_->getElapsedTimeMs();
- if (elapsed_ms < USER_CONSENT_TIMEOUT_MS) {
- uint delay_seconds = (USER_CONSENT_TIMEOUT_MS - elapsed_ms) / 1000;
+ // Telephony is a fast report type, particularly on user builds where information may be
+ // more aggressively limited. To give the user time to read the consent dialog, increase the
+ // timeout.
+ uint64_t timeout_ms = options_->telephony_only ? TELEPHONY_REPORT_USER_CONSENT_TIMEOUT_MS
+ : USER_CONSENT_TIMEOUT_MS;
+ if (elapsed_ms < timeout_ms) {
+ uint delay_seconds = (timeout_ms - elapsed_ms) / 1000;
MYLOGD("Did not receive user consent yet; going to wait for %d seconds", delay_seconds);
sleep(delay_seconds);
}
diff --git a/cmds/dumpstate/tests/dumpstate_test.cpp b/cmds/dumpstate/tests/dumpstate_test.cpp
index cff1d43..99d482f 100644
--- a/cmds/dumpstate/tests/dumpstate_test.cpp
+++ b/cmds/dumpstate/tests/dumpstate_test.cpp
@@ -372,12 +372,12 @@
EXPECT_TRUE(options_.do_broadcast);
EXPECT_TRUE(options_.do_zip_file);
EXPECT_TRUE(options_.telephony_only);
+ EXPECT_TRUE(options_.do_progress_updates);
// Other options retain default values
EXPECT_TRUE(options_.do_vibrate);
EXPECT_FALSE(options_.use_control_socket);
EXPECT_FALSE(options_.show_header_only);
- EXPECT_FALSE(options_.do_progress_updates);
EXPECT_FALSE(options_.is_remote_mode);
EXPECT_FALSE(options_.use_socket);
}
diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index 5f9d400..bc541f4 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -170,7 +170,6 @@
name: "libbinder_aidl_test_stub",
local_include_dir: "aidl",
srcs: [":libbinder_aidl"],
- visibility: [":__subpackages__"],
vendor_available: true,
backend: {
java: {
diff --git a/libs/binder/ndk/ibinder.cpp b/libs/binder/ndk/ibinder.cpp
index e752c45..75dcdc8 100644
--- a/libs/binder/ndk/ibinder.cpp
+++ b/libs/binder/ndk/ibinder.cpp
@@ -24,10 +24,13 @@
#include <android-base/logging.h>
#include <binder/IPCThreadState.h>
+#include <binder/IResultReceiver.h>
+#include <private/android_filesystem_config.h>
using DeathRecipient = ::android::IBinder::DeathRecipient;
using ::android::IBinder;
+using ::android::IResultReceiver;
using ::android::Parcel;
using ::android::sp;
using ::android::status_t;
@@ -158,6 +161,45 @@
binder_status_t status = getClass()->onTransact(this, code, &in, &out);
return PruneStatusT(status);
+ } else if (code == SHELL_COMMAND_TRANSACTION) {
+ int in = data.readFileDescriptor();
+ int out = data.readFileDescriptor();
+ int err = data.readFileDescriptor();
+
+ int argc = data.readInt32();
+ std::vector<String8> utf8Args; // owns memory of utf8s
+ std::vector<const char*> utf8Pointers; // what can be passed over NDK API
+ for (int i = 0; i < argc && data.dataAvail() > 0; i++) {
+ utf8Args.push_back(String8(data.readString16()));
+ utf8Pointers.push_back(utf8Args[i].c_str());
+ }
+
+ data.readStrongBinder(); // skip over the IShellCallback
+ sp<IResultReceiver> resultReceiver = IResultReceiver::asInterface(data.readStrongBinder());
+
+ // Shell commands should only be callable by ADB.
+ uid_t uid = AIBinder_getCallingUid();
+ if (uid != AID_ROOT && uid != AID_SHELL) {
+ if (resultReceiver != nullptr) {
+ resultReceiver->send(-1);
+ }
+ return STATUS_PERMISSION_DENIED;
+ }
+
+ // Check that the file descriptors are valid.
+ if (in == STATUS_BAD_TYPE || out == STATUS_BAD_TYPE || err == STATUS_BAD_TYPE) {
+ if (resultReceiver != nullptr) {
+ resultReceiver->send(-1);
+ }
+ return STATUS_BAD_VALUE;
+ }
+
+ binder_status_t status = getClass()->handleShellCommand(
+ this, in, out, err, utf8Pointers.data(), utf8Pointers.size());
+ if (resultReceiver != nullptr) {
+ resultReceiver->send(status);
+ }
+ return status;
} else {
return BBinder::onTransact(code, data, reply, flags);
}
@@ -266,6 +308,13 @@
clazz->onDump = onDump;
}
+void AIBinder_Class_setHandleShellCommand(AIBinder_Class* clazz,
+ AIBinder_handleShellCommand handleShellCommand) {
+ CHECK(clazz != nullptr) << "setHandleShellCommand requires non-null clazz";
+
+ clazz->handleShellCommand = handleShellCommand;
+}
+
void AIBinder_DeathRecipient::TransferDeathRecipient::binderDied(const wp<IBinder>& who) {
CHECK(who == mWho);
diff --git a/libs/binder/ndk/ibinder_internal.h b/libs/binder/ndk/ibinder_internal.h
index 5cb68c2..5779427 100644
--- a/libs/binder/ndk/ibinder_internal.h
+++ b/libs/binder/ndk/ibinder_internal.h
@@ -17,6 +17,7 @@
#pragma once
#include <android/binder_ibinder.h>
+#include <android/binder_shell.h>
#include "ibinder_internal.h"
#include <atomic>
@@ -115,6 +116,7 @@
// optional methods for a class
AIBinder_onDump onDump;
+ AIBinder_handleShellCommand handleShellCommand;
private:
// This must be a String16 since BBinder virtual getInterfaceDescriptor returns a reference to
diff --git a/libs/binder/ndk/include_ndk/android/binder_interface_utils.h b/libs/binder/ndk/include_ndk/android/binder_interface_utils.h
index 83a1048..7331ba2 100644
--- a/libs/binder/ndk/include_ndk/android/binder_interface_utils.h
+++ b/libs/binder/ndk/include_ndk/android/binder_interface_utils.h
@@ -30,6 +30,11 @@
#include <android/binder_auto_utils.h>
#include <android/binder_ibinder.h>
+#if __has_include(<android/binder_shell.h>)
+#include <android/binder_shell.h>
+#define HAS_BINDER_SHELL_COMMAND
+#endif //_has_include
+
#include <assert.h>
#include <memory>
@@ -108,7 +113,15 @@
/**
* Dumps information about the interface. By default, dumps nothing.
*/
- virtual inline binder_status_t dump(int /*fd*/, const char** /*args*/, uint32_t /*numArgs*/);
+ virtual inline binder_status_t dump(int fd, const char** args, uint32_t numArgs);
+
+#ifdef HAS_BINDER_SHELL_COMMAND
+ /**
+ * Process shell commands. By default, does nothing.
+ */
+ virtual inline binder_status_t handleShellCommand(int in, int out, int err, const char** argv,
+ uint32_t argc);
+#endif
/**
* Interprets this binder as this underlying interface if this has stored an ICInterface in the
@@ -136,6 +149,11 @@
static inline void onDestroy(void* userData);
static inline binder_status_t onDump(AIBinder* binder, int fd, const char** args,
uint32_t numArgs);
+
+#ifdef HAS_BINDER_SHELL_COMMAND
+ static inline binder_status_t handleShellCommand(AIBinder* binder, int in, int out, int err,
+ const char** argv, uint32_t argc);
+#endif
};
};
@@ -191,6 +209,13 @@
return STATUS_OK;
}
+#ifdef HAS_BINDER_SHELL_COMMAND
+binder_status_t ICInterface::handleShellCommand(int /*in*/, int /*out*/, int /*err*/,
+ const char** /*argv*/, uint32_t /*argc*/) {
+ return STATUS_OK;
+}
+#endif
+
std::shared_ptr<ICInterface> ICInterface::asInterface(AIBinder* binder) {
return ICInterfaceData::getInterface(binder);
}
@@ -203,9 +228,12 @@
return nullptr;
}
- // We can't know if this method is overriden by a subclass interface, so we must register
- // ourselves. The default (nothing to dump) is harmless.
+ // We can't know if these methods are overridden by a subclass interface, so we must register
+ // ourselves. The defaults are harmless.
AIBinder_Class_setOnDump(clazz, ICInterfaceData::onDump);
+#ifdef HAS_BINDER_SHELL_COMMAND
+ AIBinder_Class_setHandleShellCommand(clazz, ICInterfaceData::handleShellCommand);
+#endif
return clazz;
}
@@ -234,6 +262,15 @@
return interface->dump(fd, args, numArgs);
}
+#ifdef HAS_BINDER_SHELL_COMMAND
+binder_status_t ICInterface::ICInterfaceData::handleShellCommand(AIBinder* binder, int in, int out,
+ int err, const char** argv,
+ uint32_t argc) {
+ std::shared_ptr<ICInterface> interface = getInterface(binder);
+ return interface->handleShellCommand(in, out, err, argv, argc);
+}
+#endif
+
template <typename INTERFACE>
SpAIBinder BnCInterface<INTERFACE>::asBinder() {
std::lock_guard<std::mutex> l(mMutex);
diff --git a/libs/binder/ndk/include_platform/android/binder_shell.h b/libs/binder/ndk/include_platform/android/binder_shell.h
new file mode 100644
index 0000000..17b38b0
--- /dev/null
+++ b/libs/binder/ndk/include_platform/android/binder_shell.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+#pragma once
+
+#include <android/binder_ibinder.h>
+
+__BEGIN_DECLS
+
+/**
+ * Function to execute a shell command.
+ *
+ * Available since API level 30.
+ *
+ * \param binder the binder executing the command
+ * \param in input file descriptor, should be flushed, ownership is not passed
+ * \param out output file descriptor, should be flushed, ownership is not passed
+ * \param err error file descriptor, should be flushed, ownership is not passed
+ * \param argv array of null-terminated strings for command (may be null if argc
+ * is 0)
+ * \param argc length of argv array
+ *
+ * \return binder_status_t result of transaction
+ */
+typedef binder_status_t (*AIBinder_handleShellCommand)(AIBinder* binder, int in, int out, int err,
+ const char** argv, uint32_t argc);
+
+/**
+ * This sets the implementation of handleShellCommand for a class.
+ *
+ * If this isn't set, nothing will be executed when handleShellCommand is called.
+ *
+ * Available since API level 30.
+ *
+ * \param handleShellCommand function to call when a shell transaction is
+ * received
+ */
+void AIBinder_Class_setHandleShellCommand(AIBinder_Class* clazz,
+ AIBinder_handleShellCommand handleShellCommand)
+ __INTRODUCED_IN(30);
+
+__END_DECLS
diff --git a/libs/binder/ndk/libbinder_ndk.map.txt b/libs/binder/ndk/libbinder_ndk.map.txt
index f3158d7..7e72f22 100644
--- a/libs/binder/ndk/libbinder_ndk.map.txt
+++ b/libs/binder/ndk/libbinder_ndk.map.txt
@@ -110,6 +110,7 @@
AIBinder_markSystemStability; # apex
AIBinder_markVendorStability; # llndk
AIBinder_markVintfStability; # apex llndk
+ AIBinder_Class_setHandleShellCommand; # apex llndk
local:
*;
};
diff --git a/libs/binder/ndk/test/Android.bp b/libs/binder/ndk/test/Android.bp
index 513d8c2..cb4b20f 100644
--- a/libs/binder/ndk/test/Android.bp
+++ b/libs/binder/ndk/test/Android.bp
@@ -60,6 +60,7 @@
defaults: ["test_libbinder_ndk_test_defaults"],
srcs: ["libbinder_ndk_unit_test.cpp"],
static_libs: [
+ "IBinderNdkUnitTest-cpp",
"IBinderNdkUnitTest-ndk_platform",
],
test_suites: ["general-tests"],
diff --git a/libs/binder/ndk/test/libbinder_ndk_unit_test.cpp b/libs/binder/ndk/test/libbinder_ndk_unit_test.cpp
index 51dd169..fd30d87 100644
--- a/libs/binder/ndk/test/libbinder_ndk_unit_test.cpp
+++ b/libs/binder/ndk/test/libbinder_ndk_unit_test.cpp
@@ -14,6 +14,7 @@
* limitations under the License.
*/
+#include <IBinderNdkUnitTest.h>
#include <aidl/BnBinderNdkUnitTest.h>
#include <aidl/BnEmpty.h>
#include <android-base/logging.h>
@@ -26,13 +27,16 @@
// warning: this is assuming that libbinder_ndk is using the same copy
// of libbinder that we are.
#include <binder/IPCThreadState.h>
+#include <binder/IResultReceiver.h>
+#include <binder/IServiceManager.h>
+#include <binder/IShellCallback.h>
#include <sys/prctl.h>
#include <chrono>
#include <condition_variable>
#include <mutex>
-using ::android::sp;
+using namespace android;
constexpr char kExistingNonNdkService[] = "SurfaceFlinger";
constexpr char kBinderNdkUnitTestService[] = "BinderNdkUnitTest";
@@ -48,6 +52,14 @@
android::IPCThreadState::self()->flushCommands();
return ndk::ScopedAStatus::ok();
}
+ binder_status_t handleShellCommand(int /*in*/, int out, int /*err*/, const char** args,
+ uint32_t numArgs) override {
+ for (uint32_t i = 0; i < numArgs; i++) {
+ dprintf(out, "%s", args[i]);
+ }
+ fsync(out);
+ return STATUS_OK;
+ }
};
int generatedService() {
@@ -296,6 +308,92 @@
EXPECT_TRUE(destroyed);
}
+class MyResultReceiver : public BnResultReceiver {
+ public:
+ Mutex mMutex;
+ Condition mCondition;
+ bool mHaveResult = false;
+ int32_t mResult = 0;
+
+ virtual void send(int32_t resultCode) {
+ AutoMutex _l(mMutex);
+ mResult = resultCode;
+ mHaveResult = true;
+ mCondition.signal();
+ }
+
+ int32_t waitForResult() {
+ AutoMutex _l(mMutex);
+ while (!mHaveResult) {
+ mCondition.wait(mMutex);
+ }
+ return mResult;
+ }
+};
+
+class MyShellCallback : public BnShellCallback {
+ public:
+ virtual int openFile(const String16& /*path*/, const String16& /*seLinuxContext*/,
+ const String16& /*mode*/) {
+ // Empty implementation.
+ return 0;
+ }
+};
+
+bool ReadFdToString(int fd, std::string* content) {
+ char buf[64];
+ ssize_t n;
+ while ((n = TEMP_FAILURE_RETRY(read(fd, &buf[0], sizeof(buf)))) > 0) {
+ content->append(buf, n);
+ }
+ return (n == 0) ? true : false;
+}
+
+std::string shellCmdToString(sp<IBinder> unitTestService, const std::vector<const char*>& args) {
+ int inFd[2] = {-1, -1};
+ int outFd[2] = {-1, -1};
+ int errFd[2] = {-1, -1};
+
+ EXPECT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM, 0, inFd));
+ EXPECT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM, 0, outFd));
+ EXPECT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM, 0, errFd));
+
+ sp<MyShellCallback> cb = new MyShellCallback();
+ sp<MyResultReceiver> resultReceiver = new MyResultReceiver();
+
+ Vector<String16> argsVec;
+ for (int i = 0; i < args.size(); i++) {
+ argsVec.add(String16(args[i]));
+ }
+ status_t error = IBinder::shellCommand(unitTestService, inFd[0], outFd[0], errFd[0], argsVec,
+ cb, resultReceiver);
+ EXPECT_EQ(error, android::OK);
+
+ status_t res = resultReceiver->waitForResult();
+ EXPECT_EQ(res, android::OK);
+
+ close(inFd[0]);
+ close(inFd[1]);
+ close(outFd[0]);
+ close(errFd[0]);
+ close(errFd[1]);
+
+ std::string ret;
+ EXPECT_TRUE(ReadFdToString(outFd[1], &ret));
+ close(outFd[1]);
+ return ret;
+}
+
+TEST(NdkBinder, UseHandleShellCommand) {
+ static const sp<android::IServiceManager> sm(android::defaultServiceManager());
+ sp<IBinder> testService = sm->getService(String16(kBinderNdkUnitTestService));
+
+ EXPECT_EQ("", shellCmdToString(testService, {}));
+ EXPECT_EQ("", shellCmdToString(testService, {"", ""}));
+ EXPECT_EQ("Hello world!", shellCmdToString(testService, {"Hello ", "world!"}));
+ EXPECT_EQ("CMD", shellCmdToString(testService, {"C", "M", "D"}));
+}
+
int main(int argc, char* argv[]) {
::testing::InitGoogleTest(&argc, argv);