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/*
* Copyright (C) 2021 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 <binder/MemoryHeapBase.h>
#include <cutils/ashmem.h>
#include <fcntl.h>
#include <gtest/gtest.h>
using namespace android;
#ifdef __BIONIC__
TEST(MemoryHeapBase, ForceMemfdRespected) {
auto mHeap = sp<MemoryHeapBase>::make(10, MemoryHeapBase::FORCE_MEMFD, "Test mapping");
ASSERT_NE(mHeap.get(), nullptr);
int fd = mHeap->getHeapID();
EXPECT_NE(fd, -1);
EXPECT_FALSE(ashmem_valid(fd));
EXPECT_NE(fcntl(fd, F_GET_SEALS), -1);
}
TEST(MemoryHeapBase, MemfdSealed) {
auto mHeap = sp<MemoryHeapBase>::make(8192,
MemoryHeapBase::FORCE_MEMFD,
"Test mapping");
ASSERT_NE(mHeap.get(), nullptr);
int fd = mHeap->getHeapID();
EXPECT_NE(fd, -1);
EXPECT_EQ(fcntl(fd, F_GET_SEALS), F_SEAL_GROW | F_SEAL_SHRINK | F_SEAL_SEAL);
EXPECT_EQ(ftruncate(fd, 4096), -1);
}
TEST(MemoryHeapBase, MemfdUnsealed) {
auto mHeap = sp<MemoryHeapBase>::make(8192,
MemoryHeapBase::FORCE_MEMFD |
MemoryHeapBase::MEMFD_ALLOW_SEALING,
"Test mapping");
ASSERT_NE(mHeap.get(), nullptr);
int fd = mHeap->getHeapID();
EXPECT_NE(fd, -1);
EXPECT_EQ(fcntl(fd, F_GET_SEALS), F_SEAL_GROW | F_SEAL_SHRINK);
EXPECT_EQ(ftruncate(fd, 4096), -1);
}
TEST(MemoryHeapBase, MemfdSealedProtected) {
auto mHeap = sp<MemoryHeapBase>::make(8192,
MemoryHeapBase::FORCE_MEMFD |
MemoryHeapBase::READ_ONLY,
"Test mapping");
ASSERT_NE(mHeap.get(), nullptr);
int fd = mHeap->getHeapID();
EXPECT_NE(fd, -1);
EXPECT_EQ(fcntl(fd, F_GET_SEALS),
F_SEAL_GROW | F_SEAL_SHRINK | F_SEAL_SEAL | F_SEAL_FUTURE_WRITE);
EXPECT_EQ(ftruncate(fd, 4096), -1);
}
TEST(MemoryHeapBase, MemfdUnsealedProtected) {
auto mHeap = sp<MemoryHeapBase>::make(8192,
MemoryHeapBase::FORCE_MEMFD |
MemoryHeapBase::READ_ONLY |
MemoryHeapBase::MEMFD_ALLOW_SEALING,
"Test mapping");
ASSERT_NE(mHeap.get(), nullptr);
int fd = mHeap->getHeapID();
EXPECT_NE(fd, -1);
EXPECT_EQ(fcntl(fd, F_GET_SEALS), F_SEAL_GROW | F_SEAL_SHRINK | F_SEAL_FUTURE_WRITE);
EXPECT_EQ(ftruncate(fd, 4096), -1);
}
#else
TEST(MemoryHeapBase, HostMemfdExpected) {
auto mHeap = sp<MemoryHeapBase>::make(8192,
MemoryHeapBase::READ_ONLY,
"Test mapping");
ASSERT_NE(mHeap.get(), nullptr);
int fd = mHeap->getHeapID();
void* ptr = mHeap->getBase();
EXPECT_NE(ptr, MAP_FAILED);
EXPECT_TRUE(ashmem_valid(fd));
EXPECT_EQ(mHeap->getFlags(), MemoryHeapBase::READ_ONLY);
}
TEST(MemoryHeapBase,HostMemfdException) {
auto mHeap = sp<MemoryHeapBase>::make(8192,
MemoryHeapBase::FORCE_MEMFD |
MemoryHeapBase::READ_ONLY |
MemoryHeapBase::MEMFD_ALLOW_SEALING,
"Test mapping");
ASSERT_NE(mHeap.get(), nullptr);
int fd = mHeap->getHeapID();
void* ptr = mHeap->getBase();
EXPECT_EQ(mHeap->getFlags(), MemoryHeapBase::READ_ONLY);
EXPECT_TRUE(ashmem_valid(fd));
EXPECT_NE(ptr, MAP_FAILED);
}
#endif
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