| // 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 <fidl/fuchsia.io/cpp/wire.h> |
| #include <fidl/fuchsia.process/cpp/wire.h> |
| #include <lib/fdio/directory.h> |
| #include <lib/zx/channel.h> |
| |
| #include <fbl/unique_fd.h> |
| #include <zxtest/zxtest.h> |
| |
| namespace { |
| |
| const fuchsia_io::wire::OpenFlags kReadFlags = fuchsia_io::wire::OpenFlags::kRightReadable; |
| |
| TEST(DirectoryTest, ServiceConnect) { |
| ASSERT_STATUS(ZX_ERR_INVALID_ARGS, fdio_service_connect(nullptr, ZX_HANDLE_INVALID)); |
| |
| zx::channel h1, h2; |
| ASSERT_OK(zx::channel::create(0, &h1, &h2)); |
| ASSERT_STATUS(ZX_ERR_NOT_FOUND, fdio_service_connect("/x/y/z", h1.release())); |
| ASSERT_STATUS(ZX_ERR_NOT_SUPPORTED, fdio_service_connect("/", h2.release())); |
| |
| ASSERT_OK(zx::channel::create(0, &h1, &h2)); |
| ASSERT_OK(fdio_service_connect(fidl::DiscoverableProtocolDefaultPath<fuchsia_process::Launcher>, |
| h1.release())); |
| } |
| |
| TEST(DirectoryTest, Open) { |
| ASSERT_STATUS(ZX_ERR_INVALID_ARGS, fdio_open(nullptr, 0, ZX_HANDLE_INVALID)); |
| |
| zx::channel h1, h2; |
| ASSERT_OK(zx::channel::create(0, &h1, &h2)); |
| ASSERT_STATUS(ZX_ERR_NOT_FOUND, |
| fdio_open("/x/y/z", static_cast<uint32_t>(kReadFlags), h1.release())); |
| ASSERT_STATUS(ZX_ERR_NOT_SUPPORTED, |
| fdio_open("/", static_cast<uint32_t>(kReadFlags), h2.release())); |
| |
| ASSERT_OK(zx::channel::create(0, &h1, &h2)); |
| ASSERT_OK(fdio_open("/svc", static_cast<uint32_t>(kReadFlags), h1.release())); |
| |
| zx::channel h3, h4; |
| ASSERT_OK(zx::channel::create(0, &h3, &h4)); |
| ASSERT_OK(fdio_service_connect_at( |
| h2.get(), fidl::DiscoverableProtocolName<fuchsia_process::Launcher>, h3.release())); |
| ASSERT_OK(fdio_open_at(h2.get(), fidl::DiscoverableProtocolName<fuchsia_process::Launcher>, |
| static_cast<uint32_t>(kReadFlags), h4.release())); |
| |
| // We need to test the deprecated fdio_service_clone(_to) functions, so allow use of deprecated |
| // APIs here without printing any warnings. |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wdeprecated-declarations" |
| h3.reset(fdio_service_clone(h2.get())); |
| ASSERT_TRUE(h3.is_valid()); |
| |
| ASSERT_OK(zx::channel::create(0, &h3, &h4)); |
| ASSERT_STATUS(ZX_ERR_INVALID_ARGS, fdio_service_clone_to(h2.get(), ZX_HANDLE_INVALID)); |
| ASSERT_OK(fdio_service_clone_to(h2.get(), h3.release())); |
| #pragma clang diagnostic pop |
| } |
| |
| TEST(DirectoryTest, OpenFD) { |
| // kInvalidLengthPath is `/a{4095}\0` (leading forward slash then 4,095 'a's then null), |
| // which is 4,097 bytes (including the null) which is one longer than the maximum allowed path |
| // https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.io/io.fidl;l=47;drc=e7cbd843e8ced20ea21f9213989d803ae64fcfaf |
| constexpr std::string_view kInvalidLengthPath = |
| "/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"; |
| EXPECT_EQ(kInvalidLengthPath.length(), 4096); |
| { |
| fbl::unique_fd fd; |
| ASSERT_STATUS(ZX_ERR_INVALID_ARGS, fdio_open_fd(nullptr, static_cast<uint32_t>(kReadFlags), |
| fd.reset_and_get_address())); |
| ASSERT_STATUS(ZX_ERR_NOT_FOUND, fdio_open_fd("/x/y/z", static_cast<uint32_t>(kReadFlags), |
| fd.reset_and_get_address())); |
| |
| // Opening local directories, like the root of the namespace, should be supported. |
| ASSERT_OK(fdio_open_fd("/", static_cast<uint32_t>(kReadFlags), fd.reset_and_get_address())); |
| |
| // fdio_open_fd canonicalizes the path, per |
| // https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.io/io.fidl;l=41-43;drc=e7cbd843e8ced20ea21f9213989d803ae64fcfaf |
| ASSERT_OK( |
| fdio_open_fd("/pkg/..", static_cast<uint32_t>(kReadFlags), fd.reset_and_get_address())); |
| |
| // fdio_open_fd rejects paths of 4,097 bytes (including the null) or more. |
| ASSERT_STATUS(ZX_ERR_BAD_PATH, |
| fdio_open_fd(kInvalidLengthPath.data(), static_cast<uint32_t>(kReadFlags), |
| fd.reset_and_get_address())); |
| |
| // fdio_open_fd's path canonicalization of consecutive '/'s works with fdio_open_fd's |
| // requirement for a leading slash. |
| ASSERT_OK(fdio_open_fd("//", static_cast<uint32_t>(kReadFlags), fd.reset_and_get_address())); |
| |
| // Relative paths are interpreted to CWD which is '/' at this point of the test. |
| ASSERT_OK(fdio_open_fd("pkg", static_cast<uint32_t>(kReadFlags), fd.reset_and_get_address())); |
| |
| // fdio_open_fd sets OPEN_FLAG_DIRECTORY if the path ends in '/'. |
| ASSERT_STATUS(ZX_ERR_NOT_DIR, |
| fdio_open_fd("/pkg/test/fdio-test/", static_cast<uint32_t>(kReadFlags), |
| fd.reset_and_get_address())); |
| } |
| |
| { |
| ASSERT_EQ(chdir("/pkg"), 0, "errno %d: %s", errno, strerror(errno)); |
| |
| fbl::unique_fd fd; |
| ASSERT_OK(fdio_open_fd("test", static_cast<uint32_t>(kReadFlags), fd.reset_and_get_address())); |
| ASSERT_TRUE(fd.is_valid()); |
| |
| ASSERT_EQ(chdir("/"), 0, "errno %d: %s", errno, strerror(errno)); |
| } |
| |
| { |
| fbl::unique_fd fd; |
| ASSERT_OK( |
| fdio_open_fd("/pkg/test", static_cast<uint32_t>(kReadFlags), fd.reset_and_get_address())); |
| ASSERT_TRUE(fd.is_valid()); |
| |
| fbl::unique_fd fd2; |
| ASSERT_STATUS(ZX_ERR_INVALID_ARGS, |
| fdio_open_fd_at(fd.get(), nullptr, static_cast<uint32_t>(kReadFlags), |
| fd2.reset_and_get_address())); |
| ASSERT_FALSE(fd2.is_valid()); |
| ASSERT_STATUS(ZX_ERR_NOT_FOUND, |
| fdio_open_fd_at(fd.get(), "some-nonexistent-file", |
| static_cast<uint32_t>(kReadFlags), fd2.reset_and_get_address())); |
| ASSERT_FALSE(fd2.is_valid()); |
| |
| // fdio_open_fd_at() should not resolve absolute paths to the root directory, unlike openat(). |
| ASSERT_STATUS(ZX_ERR_INVALID_ARGS, |
| fdio_open_fd_at(fd.get(), "/pkg", static_cast<uint32_t>(kReadFlags), |
| fd2.reset_and_get_address())); |
| ASSERT_FALSE(fd2.is_valid()); |
| |
| // fdio_open_fd_at() also should not interpret absolute paths as relative paths to the provided |
| // fd. |
| ASSERT_STATUS(ZX_ERR_INVALID_ARGS, |
| fdio_open_fd_at(fd.get(), "/fdio-test", static_cast<uint32_t>(kReadFlags), |
| fd2.reset_and_get_address())); |
| ASSERT_FALSE(fd2.is_valid()); |
| |
| // fdio_open_fd_at rejects paths of 4,097 bytes (including the null) or more. |
| ASSERT_STATUS(ZX_ERR_BAD_PATH, |
| fdio_open_fd_at(fd.get(), kInvalidLengthPath.data(), |
| static_cast<uint32_t>(kReadFlags), fd2.reset_and_get_address())); |
| |
| // We expect the binary that this file is compiled into to exist |
| ASSERT_OK(fdio_open_fd_at(fd.get(), "fdio-test", static_cast<uint32_t>(kReadFlags), |
| fd2.reset_and_get_address())); |
| ASSERT_TRUE(fd2.is_valid()); |
| |
| // Verify that we can actually read from that file. |
| char buf[256]; |
| ssize_t bytes_read = read(fd2.get(), buf, 256); |
| ASSERT_EQ(bytes_read, 256); |
| |
| // fdio_open_fd_at canonicalizes the path, per |
| // https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.io/io.fidl;l=41-43;drc=e7cbd843e8ced20ea21f9213989d803ae64fcfaf |
| ASSERT_OK(fdio_open_fd_at(fd.get(), "fdio-test/..", static_cast<uint32_t>(kReadFlags), |
| fd2.reset_and_get_address())); |
| ASSERT_TRUE(fd2.is_valid()); |
| |
| // fdio_open_fd_at sets OPEN_FLAG_DIRECTORY if the path ends in '/'. |
| ASSERT_STATUS(ZX_ERR_NOT_DIR, |
| fdio_open_fd_at(fd.get(), "fdio-test/", static_cast<uint32_t>(kReadFlags), |
| fd2.reset_and_get_address())); |
| ASSERT_FALSE(fd2.is_valid()); |
| } |
| } |
| |
| } // namespace |
