| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <fcntl.h> |
| #include <lib/fdio/fdio.h> |
| #include <lib/fdio/limits.h> |
| #include <lib/fdio/unsafe.h> |
| #include <lib/zx/channel.h> |
| #include <lib/zx/socket.h> |
| #include <lib/zx/vmo.h> |
| #include <lib/zxio/zxio.h> |
| #include <unistd.h> |
| #include <zircon/limits.h> |
| |
| #include <fbl/unique_fd.h> |
| #include <zxtest/zxtest.h> |
| |
| #include "predicates.h" |
| |
| namespace { |
| |
| TEST(FDIOTest, CreateNull) { |
| fdio_t* io = fdio_null_create(); |
| fbl::unique_fd fd(fdio_bind_to_fd(io, -1, 0)); |
| EXPECT_LE(0, fd.get()); |
| EXPECT_EQ(3, write(fd.get(), "abc", 3)); |
| } |
| |
| TEST(FDIOTest, CreateNullFD) { |
| fbl::unique_fd fd(fdio_fd_create_null()); |
| EXPECT_LE(0, fd.get()); |
| EXPECT_EQ(3, write(fd.get(), "abc", 3)); |
| } |
| |
| TEST(FDIOTest, DupNullFD) { |
| fbl::unique_fd fd(fdio_fd_create_null()); |
| EXPECT_LE(0, fd.get()); |
| fbl::unique_fd dup_fd(dup(fd.get())); |
| EXPECT_LE(0, dup_fd.get()); |
| EXPECT_NE(fd.get(), dup_fd.get()); |
| } |
| |
| TEST(FDIOTest, CreateSocket) { |
| zx::socket s1, s2; |
| ASSERT_OK(zx::socket::create(0, &s1, &s2)); |
| |
| fdio_t* io = nullptr; |
| ASSERT_OK(fdio_create(s1.release(), &io)); |
| ASSERT_TRUE(io); |
| |
| fbl::unique_fd fd(fdio_bind_to_fd(io, -1, 0)); |
| EXPECT_LE(0, fd.get()); |
| constexpr char payload[] = "abc"; |
| EXPECT_EQ(write(fd.get(), payload, sizeof(payload)), ssize_t(sizeof(payload))); |
| |
| char buffer[sizeof(payload) + 1] = {}; |
| size_t actual; |
| EXPECT_OK(s2.read(0, buffer, sizeof(buffer), &actual)); |
| EXPECT_EQ(actual, sizeof(payload)); |
| EXPECT_STREQ(buffer, payload); |
| } |
| |
| TEST(FDIOTest, CreateVMO) { |
| const size_t kSize = zx_system_get_page_size(); |
| zx::vmo vmo; |
| ASSERT_OK(zx::vmo::create(kSize, 0, &vmo)); |
| |
| fdio_t* io = nullptr; |
| ASSERT_OK(fdio_create(vmo.release(), &io)); |
| ASSERT_TRUE(io); |
| |
| fbl::unique_fd fd(fdio_bind_to_fd(io, -1, 0)); |
| EXPECT_LE(0, fd.get()); |
| constexpr char payload[] = "xyz"; |
| EXPECT_EQ(write(fd.get(), payload, sizeof(payload)), ssize_t(sizeof(payload))); |
| |
| char buffer[sizeof(payload) + 1] = {}; |
| ssize_t actual = pread(fd.get(), buffer, sizeof(buffer), 0); |
| EXPECT_EQ(actual, ssize_t(sizeof(buffer))); |
| EXPECT_STREQ(buffer, payload); |
| } |
| |
| TEST(FDIOTest, BindToFDAgain) { |
| zx::socket s1, s2; |
| ASSERT_OK(zx::socket::create(0, &s1, &s2)); |
| |
| fdio_t* io = nullptr; |
| ASSERT_OK(fdio_create(s1.release(), &io)); |
| |
| fbl::unique_fd fd(fdio_bind_to_fd(io, -1, 0)); |
| EXPECT_LE(0, fd.get()); |
| EXPECT_EQ(0, fcntl(fd.get(), F_GETFD)); |
| |
| fdio_t* io2 = fdio_null_create(); |
| fbl::unique_fd fd2(fdio_bind_to_fd(io2, fd.get(), -1)); |
| EXPECT_EQ(fd.get(), fd2.get()); |
| (void)fd.release(); |
| |
| zx_signals_t observed = 0; |
| ASSERT_OK(s2.wait_one(ZX_SOCKET_PEER_CLOSED, zx::time::infinite_past(), &observed)); |
| ASSERT_TRUE(observed & ZX_SOCKET_PEER_CLOSED); |
| } |
| |
| bool find_unused_fd(int starting_fd, int* out_fd) { |
| for (int fd = starting_fd; fd < FDIO_MAX_FD; ++fd) { |
| if (fcntl(fd, F_GETFD) == -1) { |
| *out_fd = fd; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| TEST(FDIOTest, UnbindFromFD) { |
| int unused_fd = 0; |
| ASSERT_TRUE(find_unused_fd(37, &unused_fd)); |
| ASSERT_EQ(-1, fcntl(unused_fd, F_GETFD)); |
| |
| fdio_t* io = fdio_null_create(); |
| fbl::unique_fd fd(fdio_bind_to_fd(io, unused_fd, -1)); |
| EXPECT_EQ(unused_fd, fd.get()); |
| EXPECT_EQ(0, fcntl(unused_fd, F_GETFD)); |
| fdio_t* io2 = nullptr; |
| EXPECT_OK(fdio_unbind_from_fd(fd.get(), &io2)); |
| EXPECT_EQ(-1, fcntl(unused_fd, F_GETFD)); |
| (void)fd.release(); |
| EXPECT_EQ(io, io2); |
| fdio_unsafe_release(io2); |
| |
| // Invalid file descriptors. |
| EXPECT_STATUS(ZX_ERR_INVALID_ARGS, fdio_unbind_from_fd(-1, &io2)); |
| EXPECT_STATUS(ZX_ERR_INVALID_ARGS, fdio_unbind_from_fd(FDIO_MAX_FD, &io2)); |
| } |
| |
| TEST(FDIOTest, GetServiceHandle) { |
| int unused_fd = 0; |
| ASSERT_TRUE(find_unused_fd(37, &unused_fd)); |
| ASSERT_EQ(-1, fcntl(unused_fd, F_GETFD)); |
| |
| zx::channel h1; |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdeprecated-declarations" |
| EXPECT_STATUS(ZX_ERR_INVALID_ARGS, |
| fdio_get_service_handle(unused_fd, h1.reset_and_get_address())); |
| EXPECT_STATUS(ZX_ERR_INVALID_ARGS, fdio_get_service_handle(-1, h1.reset_and_get_address())); |
| #pragma clang diagnostic pop |
| |
| fdio_t* io = fdio_default_create(); |
| fbl::unique_fd fd(fdio_bind_to_fd(io, -1, 0)); |
| EXPECT_LE(0, fd.get()); |
| EXPECT_EQ(0, fcntl(fd.get(), F_GETFD)); |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdeprecated-declarations" |
| EXPECT_STATUS(ZX_ERR_NOT_SUPPORTED, |
| fdio_get_service_handle(fd.get(), h1.reset_and_get_address())); |
| #pragma clang diagnostic pop |
| EXPECT_EQ(-1, fcntl(fd.get(), F_GETFD)); |
| (void)fd.release(); |
| |
| fd.reset(open("/pkg", O_DIRECTORY | O_RDONLY)); |
| EXPECT_LE(0, fd.get()); |
| EXPECT_EQ(0, fcntl(fd.get(), F_GETFD)); |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdeprecated-declarations" |
| EXPECT_OK(fdio_get_service_handle(fd.get(), h1.reset_and_get_address())); |
| #pragma clang diagnostic pop |
| EXPECT_EQ(-1, fcntl(fd.get(), F_GETFD)); |
| (void)fd.release(); |
| |
| fd.reset(open("/pkg", O_DIRECTORY | O_RDONLY)); |
| EXPECT_LE(0, fd.get()); |
| fbl::unique_fd fd2(dup(fd.get())); |
| EXPECT_LE(0, fd2.get()); |
| EXPECT_EQ(0, fcntl(fd.get(), F_GETFD)); |
| EXPECT_EQ(0, fcntl(fd2.get(), F_GETFD)); |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdeprecated-declarations" |
| EXPECT_STATUS(ZX_ERR_UNAVAILABLE, fdio_get_service_handle(fd.get(), h1.reset_and_get_address())); |
| #pragma clang diagnostic pop |
| EXPECT_EQ(-1, fcntl(fd.get(), F_GETFD)); |
| (void)fd.release(); |
| EXPECT_EQ(0, fcntl(fd2.get(), F_GETFD)); |
| int raw_fd = fd2.get(); |
| fd2.reset(); |
| EXPECT_EQ(-1, fcntl(raw_fd, F_GETFD)); |
| } |
| |
| TEST(FDIOTest, GetZxio) { |
| zxio_storage_t* storage = nullptr; |
| fdio_t* fdio = fdio_zxio_create(&storage); |
| ASSERT_NE(nullptr, fdio); |
| zxio_t* zxio = fdio_get_zxio(fdio); |
| EXPECT_EQ(storage, reinterpret_cast<zxio_storage_t*>(zxio)); |
| fdio_unsafe_release(fdio); |
| } |
| |
| } // namespace |