| // 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 <lib/fdio/fd.h> |
| #include <lib/zx/socket.h> |
| #include <lib/zx/vmo.h> |
| #include <string.h> |
| #include <sys/socket.h> |
| #include <sys/stat.h> |
| #include <unistd.h> |
| #include <zircon/syscalls.h> |
| |
| #include <fbl/unique_fd.h> |
| #include <zxtest/zxtest.h> |
| |
| #include "predicates.h" |
| |
| TEST(FileDescriptorTest, CreateSocket) { |
| zx::socket h1, h2; |
| ASSERT_OK(zx::socket::create(0, &h1, &h2)); |
| |
| int fd = -1; |
| ASSERT_OK(fdio_fd_create(h1.release(), &fd)); |
| ASSERT_LE(0, fd); |
| |
| const char* message = "hello, my old friend."; |
| ssize_t length = strlen(message); |
| ASSERT_EQ(length, write(fd, message, length)); |
| close(fd); |
| } |
| |
| TEST(FileDescriptorTest, CreateVMO) { |
| const size_t kSize = 4096; |
| zx::vmo vmo; |
| ASSERT_OK(zx::vmo::create(kSize, 0, &vmo)); |
| |
| const char* message = "hello, vmo."; |
| ASSERT_OK(vmo.write(message, 0, strlen(message))); |
| |
| int fd = -1; |
| ASSERT_OK(fdio_fd_create(vmo.release(), &fd)); |
| ASSERT_LE(0, fd); |
| |
| struct stat info = {}; |
| ASSERT_EQ(0, fstat(fd, &info)); |
| EXPECT_EQ(4096, info.st_size); |
| |
| char buffer[1024]; |
| memset(buffer, 0, sizeof(buffer)); |
| ASSERT_EQ(read(fd, buffer, sizeof(buffer)), ssize_t(sizeof(buffer))); |
| ASSERT_EQ(7, lseek(fd, 7, SEEK_SET)); |
| EXPECT_EQ(0, strcmp(message, buffer)); |
| |
| const char* updated = "fd."; |
| ASSERT_EQ(4, write(fd, updated, strlen(updated) + 1)); |
| |
| memset(buffer, 0, sizeof(buffer)); |
| ASSERT_EQ(pread(fd, buffer, sizeof(buffer), 0u), ssize_t(sizeof(buffer))); |
| EXPECT_EQ(0, strcmp("hello, fd.", buffer)); |
| |
| ASSERT_EQ(1, pwrite(fd, "!", 1, 9)); |
| memset(buffer, 0, sizeof(buffer)); |
| ASSERT_EQ(pread(fd, buffer, sizeof(buffer), 0u), ssize_t(sizeof(buffer))); |
| EXPECT_EQ(0, strcmp("hello, fd!", buffer)); |
| |
| ASSERT_EQ(4096, lseek(fd, 4096, SEEK_SET)); |
| memset(buffer, 0, sizeof(buffer)); |
| ASSERT_EQ(0, read(fd, buffer, sizeof(buffer))); |
| |
| close(fd); |
| } |
| |
| TEST(FileDescriptorTest, CWDClone) { |
| zx_handle_t dir = ZX_HANDLE_INVALID; |
| ASSERT_EQ(ZX_ERR_NOT_SUPPORTED, fdio_cwd_clone(&dir)); |
| ASSERT_EQ(ZX_HANDLE_INVALID, dir); |
| } |
| |
| TEST(FileDescriptorTest, CloneSocket) { |
| zx::socket h1, h2; |
| ASSERT_OK(zx::socket::create(0, &h1, &h2)); |
| |
| int fd = -1; |
| ASSERT_OK(fdio_fd_create(h1.release(), &fd)); |
| ASSERT_LE(0, fd); |
| |
| zx_handle_t handle = ZX_HANDLE_INVALID; |
| ASSERT_OK(fdio_fd_clone(fd, &handle)); |
| ASSERT_NE(ZX_HANDLE_INVALID, handle); |
| |
| zx_info_handle_basic_t info; |
| zx_status_t status = |
| zx_object_get_info(handle, ZX_INFO_HANDLE_BASIC, &info, sizeof(info), nullptr, nullptr); |
| ASSERT_OK(status); |
| ASSERT_EQ(ZX_OBJ_TYPE_SOCKET, info.type); |
| zx_handle_close(handle); |
| |
| int fd2 = dup(fd); |
| ASSERT_LE(0, fd2); |
| |
| ASSERT_OK(fdio_fd_clone(fd, &handle)); |
| zx_handle_close(handle); |
| |
| ASSERT_EQ(0, close(fd)); |
| ASSERT_EQ(0, close(fd2)); |
| } |
| |
| TEST(FileDescriptorTest, CloneVMO) { |
| zx::vmo vmo; |
| ASSERT_OK(zx::vmo::create(4096, 0, &vmo)); |
| |
| int fd = -1; |
| ASSERT_OK(fdio_fd_create(vmo.release(), &fd)); |
| ASSERT_LE(0, fd); |
| |
| zx_handle_t handle = ZX_HANDLE_INVALID; |
| ASSERT_OK(fdio_fd_clone(fd, &handle)); |
| ASSERT_NE(ZX_HANDLE_INVALID, handle); |
| |
| zx_info_handle_basic_t info; |
| zx_status_t status = |
| zx_object_get_info(handle, ZX_INFO_HANDLE_BASIC, &info, sizeof(info), nullptr, nullptr); |
| ASSERT_OK(status); |
| ASSERT_EQ(ZX_OBJ_TYPE_VMO, info.type); |
| zx_handle_close(handle); |
| |
| ASSERT_EQ(0, close(fd)); |
| } |
| |
| TEST(FileDescriptorTest, CloneAndTransferSocketPair) { |
| std::array<fbl::unique_fd, 2> fds; |
| int int_fds[fds.size()]; |
| ASSERT_SUCCESS(socketpair(AF_UNIX, SOCK_STREAM, 0, int_fds)); |
| for (size_t i = 0; i < fds.size(); ++i) { |
| fds[i].reset(int_fds[i]); |
| } |
| |
| zx::handle handle; |
| ASSERT_OK(fdio_fd_clone(fds[0].get(), handle.reset_and_get_address())); |
| |
| fbl::unique_fd cloned_fd; |
| ASSERT_OK(fdio_fd_create(handle.release(), cloned_fd.reset_and_get_address())); |
| |
| ASSERT_OK(fdio_fd_transfer(fds[0].release(), handle.reset_and_get_address())); |
| |
| fbl::unique_fd transferred_fd; |
| ASSERT_OK(fdio_fd_create(handle.release(), transferred_fd.reset_and_get_address())); |
| |
| // Verify that an operation specific to socketpairs works on these fds. |
| ASSERT_SUCCESS(shutdown(transferred_fd.get(), SHUT_WR)); |
| ASSERT_SUCCESS(shutdown(cloned_fd.get(), SHUT_RD)); |
| } |
| |
| TEST(FileDescriptorTest, TransferSocket) { |
| zx_handle_t handle = ZX_HANDLE_INVALID; |
| ASSERT_EQ(ZX_ERR_INVALID_ARGS, fdio_fd_transfer(151465, &handle)); |
| |
| zx::socket h1, h2; |
| ASSERT_OK(zx::socket::create(0, &h1, &h2)); |
| |
| int fd = -1; |
| ASSERT_OK(fdio_fd_create(h1.release(), &fd)); |
| ASSERT_LE(0, fd); |
| |
| ASSERT_OK(fdio_fd_transfer(fd, &handle)); |
| ASSERT_NE(ZX_HANDLE_INVALID, handle); |
| |
| zx_info_handle_basic_t info; |
| zx_status_t status = |
| zx_object_get_info(handle, ZX_INFO_HANDLE_BASIC, &info, sizeof(info), nullptr, nullptr); |
| ASSERT_OK(status); |
| ASSERT_EQ(ZX_OBJ_TYPE_SOCKET, info.type); |
| zx_handle_close(handle); |
| ASSERT_EQ(-1, close(fd)); |
| } |
| |
| TEST(FileDescriptorTest, TransferVMO) { |
| zx::vmo vmo; |
| ASSERT_OK(zx::vmo::create(4096, 0, &vmo)); |
| |
| int fd = -1; |
| ASSERT_OK(fdio_fd_create(vmo.release(), &fd)); |
| ASSERT_LE(0, fd); |
| |
| zx_handle_t handle = ZX_HANDLE_INVALID; |
| ASSERT_OK(fdio_fd_transfer(fd, &handle)); |
| ASSERT_NE(ZX_HANDLE_INVALID, handle); |
| |
| zx_info_handle_basic_t info; |
| zx_status_t status = |
| zx_object_get_info(handle, ZX_INFO_HANDLE_BASIC, &info, sizeof(info), nullptr, nullptr); |
| ASSERT_OK(status); |
| ASSERT_EQ(ZX_OBJ_TYPE_VMO, info.type); |
| zx_handle_close(handle); |
| ASSERT_EQ(-1, close(fd)); |
| } |
| |
| TEST(FileDescriptorTest, TransferAfterDup) { |
| zx::socket h1, h2; |
| ASSERT_OK(zx::socket::create(0, &h1, &h2)); |
| |
| int fd = -1; |
| ASSERT_OK(fdio_fd_create(h1.release(), &fd)); |
| ASSERT_LE(0, fd); |
| |
| int fd2 = dup(fd); |
| ASSERT_LE(0, fd2); |
| |
| zx_handle_t handle = ZX_HANDLE_INVALID; |
| ASSERT_EQ(ZX_ERR_UNAVAILABLE, fdio_fd_transfer(fd, &handle)); |
| ASSERT_EQ(ZX_HANDLE_INVALID, handle); |
| |
| // fdio_fd_transfer consumes |fd| when it returns ZX_ERR_UNAVAILABLE. |
| EXPECT_EQ(close(fd), -1); |
| EXPECT_ERRNO(EBADF); |
| EXPECT_EQ(close(fd2), 0); |
| } |
| |
| TEST(FileDescriptorTest, DupToSameFdSucceeds) { |
| zx::socket h1, h2; |
| ASSERT_OK(zx::socket::create(0, &h1, &h2)); |
| |
| int fd = -1; |
| ASSERT_OK(fdio_fd_create(h1.release(), &fd)); |
| ASSERT_LE(0, fd); |
| |
| ASSERT_EQ(fd, dup2(fd, fd)); |
| |
| const char* message = "hello, my old friend."; |
| ssize_t length = strlen(message); |
| ASSERT_EQ(length, write(fd, message, length)); |
| close(fd); |
| } |