/* * 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 #include #include #include using namespace android; #ifdef __BIONIC__ TEST(MemoryHeapBase, ForceMemfdRespected) { auto mHeap = sp::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::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::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::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::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::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::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