--- /dev/null
+/*
+ * Copyright (C) 2014 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.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <gtest/gtest.h>
+#include <linux/binder.h>
+#include <binder/IBinder.h>
+#include <sys/mman.h>
+#include <poll.h>
+
+#define BINDER_DEV_NAME "/dev/binder"
+
+testing::Environment* binder_env;
+
+class BinderDriverInterfaceTestEnv : public ::testing::Environment {
+ virtual void SetUp() {
+ int ret;
+ uint32_t max_threads = 0;
+
+ m_binderFd = open(BINDER_DEV_NAME, O_RDWR | O_NONBLOCK);
+ ASSERT_GE(m_binderFd, 0);
+ m_buffer = mmap(NULL, 64*1024, PROT_READ, MAP_SHARED, m_binderFd, 0);
+ ASSERT_NE(m_buffer, (void *)NULL);
+ ret = ioctl(m_binderFd, BINDER_SET_MAX_THREADS, &max_threads);
+ EXPECT_EQ(0, ret);
+ EnterLooper();
+ }
+ virtual void TearDown() {
+ close(m_binderFd);
+ }
+ private:
+ int m_binderFd;
+ void *m_buffer;
+ public:
+ int getBinderFd(void) {
+ return m_binderFd;
+ }
+ void EnterLooper(void) {
+ int ret;
+ const uint32_t bc[] = {
+ BC_ENTER_LOOPER,
+ };
+ struct binder_write_read bwr = binder_write_read();
+ bwr.write_buffer = (intptr_t)bc;
+ bwr.write_size = sizeof(bc);
+ ret = ioctl(m_binderFd, BINDER_WRITE_READ, &bwr);
+ EXPECT_EQ(0, ret);
+ if (ret < 0) {
+ EXPECT_EQ(0, errno);
+ }
+ EXPECT_EQ(sizeof(bc), bwr.write_consumed);
+ }
+};
+
+class BinderDriverInterfaceTest : public ::testing::Test {
+ public:
+ virtual void SetUp() {
+ m_binderFd = static_cast<BinderDriverInterfaceTestEnv *>(binder_env)->getBinderFd();
+ }
+ virtual void TearDown() {
+ }
+ protected:
+ void binderTestIoctlRetErr2(int cmd, void *arg, int expect_ret, int expect_errno, int accept_errno) {
+ int ret;
+
+ ret = ioctl(m_binderFd, cmd, arg);
+ EXPECT_EQ(expect_ret, ret);
+ if (ret < 0) {
+ if (errno != accept_errno)
+ EXPECT_EQ(expect_errno, errno);
+ }
+ }
+ void binderTestIoctlErr2(int cmd, void *arg, int expect_errno, int accept_errno) {
+ binderTestIoctlRetErr2(cmd, arg, -1, expect_errno, accept_errno);
+ }
+ void binderTestIoctlErr1(int cmd, void *arg, int expect_errno) {
+ binderTestIoctlErr2(cmd, arg, expect_errno, expect_errno);
+ }
+ void binderTestIoctl(int cmd, void *arg) {
+ binderTestIoctlRetErr2(cmd, arg, 0, 0, 0);
+ }
+ void binderTestIoctlUnimplemented(int cmd, void *arg) {
+ int ret;
+
+ ret = ioctl(m_binderFd, cmd, arg);
+ if (ret < 0) {
+ /* Not currently implmented. Allow ret == -1, errno == EINVAL */
+ EXPECT_EQ(-1, ret);
+ EXPECT_EQ(EINVAL, errno);
+ }
+ }
+ void binderTestReadEmpty(void) {
+ size_t i;
+ uint32_t br[32];
+ struct binder_write_read bwr = binder_write_read();
+ SCOPED_TRACE("TestReadEmpty");
+ bwr.read_buffer = (intptr_t)br;
+ bwr.read_size = sizeof(br);
+ binderTestIoctlErr1(BINDER_WRITE_READ, &bwr, EAGAIN);
+ EXPECT_EQ(0, bwr.read_consumed);
+ for (i = 0; i * sizeof(uint32_t) < bwr.read_consumed; i++) {
+ SCOPED_TRACE(testing::Message() << "i = " << i);
+ EXPECT_EQ(BR_NOOP, br[i]);
+ }
+ }
+ void binderWaitForReadData(int timeout_ms) {
+ int ret;
+ pollfd pfd = pollfd();
+
+ pfd.fd = m_binderFd;
+ pfd.events = POLLIN;
+ ret = poll(&pfd, 1, timeout_ms);
+ EXPECT_EQ(1, ret);
+ }
+ private:
+ int m_binderFd;
+};
+
+TEST_F(BinderDriverInterfaceTest, Version) {
+ struct binder_version version;
+ binderTestIoctl(BINDER_VERSION, &version);
+ ASSERT_EQ(BINDER_CURRENT_PROTOCOL_VERSION, version.protocol_version);
+}
+
+TEST_F(BinderDriverInterfaceTest, WriteReadNull) {
+ binderTestIoctlErr1(BINDER_WRITE_READ, NULL, EFAULT);
+}
+
+TEST_F(BinderDriverInterfaceTest, SetIdleTimeoutNull) {
+ binderTestIoctlErr2(BINDER_SET_IDLE_TIMEOUT, NULL, EFAULT, EINVAL);
+}
+
+TEST_F(BinderDriverInterfaceTest, SetMaxThreadsNull) {
+ binderTestIoctlErr2(BINDER_SET_MAX_THREADS, NULL, EFAULT, EINVAL); /* TODO: don't accept EINVAL */
+}
+
+TEST_F(BinderDriverInterfaceTest, SetIdlePriorityNull) {
+ binderTestIoctlErr2(BINDER_SET_IDLE_PRIORITY, NULL, EFAULT, EINVAL);
+}
+
+TEST_F(BinderDriverInterfaceTest, VersionNull) {
+ binderTestIoctlErr2(BINDER_VERSION, NULL, EFAULT, EINVAL); /* TODO: don't accept EINVAL */
+}
+
+TEST_F(BinderDriverInterfaceTest, SetIdleTimeoutNoTest) {
+ int64_t idle_timeout = 100000;
+ binderTestIoctlUnimplemented(BINDER_SET_IDLE_TIMEOUT, &idle_timeout);
+}
+
+TEST_F(BinderDriverInterfaceTest, SetMaxThreads) {
+ uint32_t max_threads = 0;
+ binderTestIoctl(BINDER_SET_MAX_THREADS, &max_threads);
+}
+
+TEST_F(BinderDriverInterfaceTest, SetIdlePriorityNoTest) {
+ int idle_priority = 0;
+ binderTestIoctlUnimplemented(BINDER_SET_IDLE_PRIORITY, &idle_priority);
+}
+
+TEST_F(BinderDriverInterfaceTest, SetContextMgrBusy) {
+ int32_t dummy = 0;
+ binderTestIoctlErr1(BINDER_SET_CONTEXT_MGR, &dummy, EBUSY);
+}
+
+TEST_F(BinderDriverInterfaceTest, ThreadExit) {
+ int32_t dummy = 0;
+ binderTestIoctl(BINDER_THREAD_EXIT, &dummy);
+ static_cast<BinderDriverInterfaceTestEnv *>(binder_env)->EnterLooper();
+}
+
+TEST_F(BinderDriverInterfaceTest, WriteReadEmpty) {
+ struct binder_write_read bwr = binder_write_read();
+ binderTestIoctl(BINDER_WRITE_READ, &bwr);
+}
+
+TEST_F(BinderDriverInterfaceTest, Read) {
+ binderTestReadEmpty();
+}
+
+TEST_F(BinderDriverInterfaceTest, IncRefsAcquireReleaseDecRefs) {
+ const uint32_t bc[] = {
+ BC_INCREFS,
+ 0,
+ BC_ACQUIRE,
+ 0,
+ BC_RELEASE,
+ 0,
+ BC_DECREFS,
+ 0,
+ };
+ struct binder_write_read bwr = binder_write_read();
+ bwr.write_buffer = (intptr_t)bc;
+ bwr.write_size = sizeof(bc);
+ binderTestIoctl(BINDER_WRITE_READ, &bwr);
+ EXPECT_EQ(sizeof(bc), bwr.write_consumed);
+ binderTestReadEmpty();
+}
+
+TEST_F(BinderDriverInterfaceTest, Transaction) {
+ binder_uintptr_t cookie = 1234;
+ struct {
+ uint32_t cmd1;
+ struct binder_transaction_data arg1;
+ } __attribute__((packed)) bc1 = {
+ .cmd1 = BC_TRANSACTION,
+ .arg1 = {
+ .target = { 0 },
+ .cookie = 0,
+ .code = android::IBinder::PING_TRANSACTION,
+ .flags = 0,
+ .sender_pid = 0,
+ .sender_euid = 0,
+ .data_size = 0,
+ .offsets_size = 0,
+ .data = {0, 0},
+ },
+ };
+ struct {
+ uint32_t cmd0;
+ uint32_t cmd1;
+ uint32_t cmd2;
+ binder_transaction_data arg2;
+ uint32_t pad[16];
+ } __attribute__((packed)) br;
+ struct binder_write_read bwr = binder_write_read();
+
+ bwr.write_buffer = (intptr_t)&bc1;
+ bwr.write_size = sizeof(bc1);
+ bwr.read_buffer = (intptr_t)&br;
+ bwr.read_size = sizeof(br);
+
+ {
+ SCOPED_TRACE("1st WriteRead");
+ binderTestIoctl(BINDER_WRITE_READ, &bwr);
+ }
+ EXPECT_EQ(sizeof(bc1), bwr.write_consumed);
+ if (bwr.read_consumed < offsetof(typeof(br), pad)) {
+ SCOPED_TRACE("2nd WriteRead");
+ binderWaitForReadData(10000);
+ binderTestIoctl(BINDER_WRITE_READ, &bwr);
+ }
+ EXPECT_EQ(offsetof(typeof(br), pad), bwr.read_consumed);
+ if (bwr.read_consumed > offsetof(typeof(br), cmd0))
+ EXPECT_EQ(BR_NOOP, br.cmd0);
+ if (bwr.read_consumed > offsetof(typeof(br), cmd1))
+ EXPECT_EQ(BR_TRANSACTION_COMPLETE, br.cmd1);
+ if (bwr.read_consumed > offsetof(typeof(br), cmd2))
+ EXPECT_EQ(BR_REPLY, br.cmd2);
+ if (bwr.read_consumed >= offsetof(typeof(br), pad)) {
+ EXPECT_EQ(0, br.arg2.target.ptr);
+ EXPECT_EQ(0, br.arg2.cookie);
+ EXPECT_EQ(0, br.arg2.code);
+ EXPECT_EQ(0, br.arg2.flags);
+ EXPECT_EQ(0, br.arg2.data_size);
+ EXPECT_EQ(0, br.arg2.offsets_size);
+
+ SCOPED_TRACE("3rd WriteRead");
+
+ binderTestReadEmpty();
+
+ struct {
+ uint32_t cmd1;
+ binder_uintptr_t arg1;
+ } __attribute__((packed)) bc2 = {
+ .cmd1 = BC_FREE_BUFFER,
+ .arg1 = br.arg2.data.ptr.buffer,
+ };
+
+ bwr.write_buffer = (intptr_t)&bc2;
+ bwr.write_size = sizeof(bc2);
+ bwr.write_consumed = 0;
+ bwr.read_size = 0;
+
+ binderTestIoctl(BINDER_WRITE_READ, &bwr);
+ EXPECT_EQ(sizeof(bc2), bwr.write_consumed);
+ }
+ binderTestReadEmpty();
+}
+
+TEST_F(BinderDriverInterfaceTest, RequestDeathNotification) {
+ binder_uintptr_t cookie = 1234;
+ struct {
+ uint32_t cmd0;
+ uint32_t arg0;
+ uint32_t cmd1;
+ struct binder_handle_cookie arg1;
+ uint32_t cmd2;
+ struct binder_handle_cookie arg2;
+ uint32_t cmd3;
+ uint32_t arg3;
+ } __attribute__((packed)) bc = {
+ .cmd0 = BC_INCREFS,
+ .arg0 = 0,
+ .cmd1 = BC_REQUEST_DEATH_NOTIFICATION,
+ .arg1 = {
+ .handle = 0,
+ .cookie = cookie,
+ },
+ .cmd2 = BC_CLEAR_DEATH_NOTIFICATION,
+ .arg2 = {
+ .handle = 0,
+ .cookie = cookie,
+ },
+ .cmd3 = BC_DECREFS,
+ .arg3 = 0,
+ };
+ struct {
+ uint32_t cmd0;
+ uint32_t cmd1;
+ binder_uintptr_t arg1;
+ uint32_t pad[16];
+ } __attribute__((packed)) br;
+ struct binder_write_read bwr = binder_write_read();
+
+ bwr.write_buffer = (intptr_t)&bc;
+ bwr.write_size = sizeof(bc);
+ bwr.read_buffer = (intptr_t)&br;
+ bwr.read_size = sizeof(br);
+
+ binderTestIoctl(BINDER_WRITE_READ, &bwr);
+ EXPECT_EQ(sizeof(bc), bwr.write_consumed);
+ EXPECT_EQ(sizeof(br) - sizeof(br.pad), bwr.read_consumed);
+ EXPECT_EQ(BR_NOOP, br.cmd0);
+ EXPECT_EQ(BR_CLEAR_DEATH_NOTIFICATION_DONE, br.cmd1);
+ EXPECT_EQ(cookie, br.arg1);
+ binderTestReadEmpty();
+}
+
+int main(int argc, char **argv) {
+ ::testing::InitGoogleTest(&argc, argv);
+
+ binder_env = AddGlobalTestEnvironment(new BinderDriverInterfaceTestEnv());
+
+ return RUN_ALL_TESTS();
+}
+
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