Sweden-Number/dlls/ws2_32/tests/afd.c

/*
 * Unit tests for AFD device ioctls
 *
 * Copyright 2021 Zebediah Figura for CodeWeavers
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <limits.h>
#include <stdarg.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winternl.h"
#include "winioctl.h"
#include "winsock2.h"
#include "ws2tcpip.h"
#include "mswsock.h"
#include "wine/afd.h"
#include "wine/test.h"

static void tcp_socketpair(SOCKET *src, SOCKET *dst)
{
    SOCKET server = INVALID_SOCKET;
    struct sockaddr_in addr;
    int len, ret;

    *src = WSASocketW(AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, WSA_FLAG_OVERLAPPED);
    ok(*src != INVALID_SOCKET, "failed to create socket, error %u\n", WSAGetLastError());

    server = WSASocketW(AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, WSA_FLAG_OVERLAPPED);
    ok(server != INVALID_SOCKET, "failed to create socket, error %u\n", WSAGetLastError());

    memset(&addr, 0, sizeof(addr));
    addr.sin_family = AF_INET;
    addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
    ret = bind(server, (struct sockaddr *)&addr, sizeof(addr));
    ok(!ret, "failed to bind socket, error %u\n", WSAGetLastError());

    len = sizeof(addr);
    ret = getsockname(server, (struct sockaddr *)&addr, &len);
    ok(!ret, "failed to get address, error %u\n", WSAGetLastError());

    ret = listen(server, 1);
    ok(!ret, "failed to listen, error %u\n", WSAGetLastError());

    ret = connect(*src, (struct sockaddr *)&addr, sizeof(addr));
    ok(!ret, "failed to connect, error %u\n", WSAGetLastError());

    len = sizeof(addr);
    *dst = accept(server, (struct sockaddr *)&addr, &len);
    ok(*dst != INVALID_SOCKET, "failed to accept socket, error %u\n", WSAGetLastError());

    closesocket(server);
}

static void set_blocking(SOCKET s, ULONG blocking)
{
    int ret;
    blocking = !blocking;
    ret = ioctlsocket(s, FIONBIO, &blocking);
    ok(!ret, "got error %u\n", WSAGetLastError());
}

static void test_open_device(void)
{
    OBJECT_BASIC_INFORMATION info;
    OBJECT_ATTRIBUTES attr;
    UNICODE_STRING string;
    IO_STATUS_BLOCK io;
    HANDLE handle;
    SOCKET s;
    int ret;

    RtlInitUnicodeString(&string, L"\\Device\\Afd");
    InitializeObjectAttributes(&attr, &string, 0, NULL, NULL);
    ret = NtOpenFile(&handle, SYNCHRONIZE, &attr, &io, 0, 0);
    ok(!ret, "got %#x\n", ret);
    CloseHandle(handle);

    RtlInitUnicodeString(&string, L"\\Device\\Afd\\");
    InitializeObjectAttributes(&attr, &string, 0, NULL, NULL);
    ret = NtOpenFile(&handle, SYNCHRONIZE, &attr, &io, 0, 0);
    ok(!ret, "got %#x\n", ret);
    CloseHandle(handle);

    RtlInitUnicodeString(&string, L"\\Device\\Afd\\foobar");
    InitializeObjectAttributes(&attr, &string, 0, NULL, NULL);
    ret = NtOpenFile(&handle, SYNCHRONIZE, &attr, &io, 0, 0);
    ok(!ret, "got %#x\n", ret);
    CloseHandle(handle);

    s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    ret = NtQueryObject((HANDLE)s, ObjectBasicInformation, &info, sizeof(info), NULL);
    ok(!ret, "got %#x\n", ret);
    todo_wine ok(info.Attributes == OBJ_INHERIT, "got attributes %#x\n", info.Attributes);
    todo_wine ok(info.GrantedAccess == (FILE_GENERIC_READ | FILE_GENERIC_WRITE | WRITE_DAC), "got access %#x\n", info.GrantedAccess);

    closesocket(s);
}

#define check_poll(a, b, c) check_poll_(__LINE__, a, b, c, FALSE)
#define check_poll_todo(a, b, c) check_poll_(__LINE__, a, b, c, TRUE)
static void check_poll_(int line, SOCKET s, HANDLE event, int expect, BOOL todo)
{
    struct afd_poll_params in_params = {0}, out_params = {0};
    IO_STATUS_BLOCK io;
    NTSTATUS ret;

    in_params.timeout = -1000 * 10000;
    in_params.count = 1;
    in_params.sockets[0].socket = s;
    in_params.sockets[0].flags = ~0;
    in_params.sockets[0].status = 0xdeadbeef;

    ret = NtDeviceIoControlFile((HANDLE)s, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, &in_params, sizeof(in_params), &out_params, sizeof(out_params));
    ok_(__FILE__, line)(!ret, "got %#x\n", ret);
    ok_(__FILE__, line)(!io.Status, "got %#x\n", io.Status);
    ok_(__FILE__, line)(io.Information == sizeof(out_params), "got %#Ix\n", io.Information);
    ok_(__FILE__, line)(out_params.timeout == in_params.timeout, "got timeout %I64d\n", out_params.timeout);
    ok_(__FILE__, line)(out_params.count == 1, "got count %u\n", out_params.count);
    ok_(__FILE__, line)(out_params.sockets[0].socket == s, "got socket %#Ix\n", out_params.sockets[0].socket);
    todo_wine_if (todo) ok_(__FILE__, line)(out_params.sockets[0].flags == expect, "got flags %#x\n", out_params.sockets[0].flags);
    ok_(__FILE__, line)(!out_params.sockets[0].status, "got status %#x\n", out_params.sockets[0].status);
}

static void test_poll(void)
{
    const struct sockaddr_in bind_addr = {.sin_family = AF_INET, .sin_addr.s_addr = htonl(INADDR_LOOPBACK)};
    char in_buffer[offsetof(struct afd_poll_params, sockets[3])];
    char out_buffer[offsetof(struct afd_poll_params, sockets[3])];
    struct afd_poll_params *in_params = (struct afd_poll_params *)in_buffer;
    struct afd_poll_params *out_params = (struct afd_poll_params *)out_buffer;
    int large_buffer_size = 1024 * 1024;
    SOCKET client, server, listener;
    struct sockaddr_in addr;
    char *large_buffer;
    IO_STATUS_BLOCK io;
    LARGE_INTEGER now;
    ULONG params_size;
    HANDLE event;
    int ret, len;

    large_buffer = malloc(large_buffer_size);
    memset(in_buffer, 0, sizeof(in_buffer));
    memset(out_buffer, 0, sizeof(out_buffer));
    event = CreateEventW(NULL, TRUE, FALSE, NULL);

    listener = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    ret = bind(listener, (const struct sockaddr *)&bind_addr, sizeof(bind_addr));
    ok(!ret, "got error %u\n", WSAGetLastError());
    ret = listen(listener, 1);
    ok(!ret, "got error %u\n", WSAGetLastError());
    len = sizeof(addr);
    ret = getsockname(listener, (struct sockaddr *)&addr, &len);
    ok(!ret, "got error %u\n", WSAGetLastError());

    params_size = offsetof(struct afd_poll_params, sockets[1]);
    in_params->count = 1;

    /* out_size must be at least as large as in_size. */

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, NULL, 0);
    ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, NULL, 0, out_params, params_size);
    ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size + 1);
    ok(ret == STATUS_INVALID_HANDLE, "got %#x\n", ret);

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size + 1, out_params, params_size);
    ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size - 1, out_params, params_size - 1);
    ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size + 1, out_params, params_size + 1);
    ok(ret == STATUS_INVALID_HANDLE, "got %#x\n", ret);

    in_params->count = 0;
    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);

    /* Basic semantics of the ioctl. */

    in_params->timeout = 0;
    in_params->count = 1;
    in_params->sockets[0].socket = listener;
    in_params->sockets[0].flags = ~0;
    in_params->sockets[0].status = 0xdeadbeef;

    memset(out_params, 0, params_size);
    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[0]), "got %#Ix\n", io.Information);
    ok(!out_params->timeout, "got timeout %#I64x\n", out_params->timeout);
    ok(!out_params->count, "got count %u\n", out_params->count);
    ok(!out_params->sockets[0].socket, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(!out_params->sockets[0].flags, "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);

    NtQuerySystemTime(&now);
    in_params->timeout = now.QuadPart;

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);
    ret = WaitForSingleObject(event, 100);
    ok(!ret, "got %#x\n", ret);
    ok(io.Status == STATUS_TIMEOUT, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[0]), "got %#Ix\n", io.Information);
    ok(out_params->timeout == now.QuadPart, "got timeout %#I64x\n", out_params->timeout);
    ok(!out_params->count, "got count %u\n", out_params->count);

    in_params->timeout = -1000 * 10000;

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    client = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    set_blocking(client, FALSE);
    ret = connect(client, (struct sockaddr *)&addr, sizeof(addr));
    ok(!ret || WSAGetLastError() == WSAEWOULDBLOCK, "got error %u\n", WSAGetLastError());

    ret = WaitForSingleObject(event, 100);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[1]), "got %#Ix\n", io.Information);
    ok(out_params->timeout == -1000 * 10000, "got timeout %#I64x\n", out_params->timeout);
    ok(out_params->count == 1, "got count %u\n", out_params->count);
    ok(out_params->sockets[0].socket == listener, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(out_params->sockets[0].flags == AFD_POLL_ACCEPT, "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[1]), "got %#Ix\n", io.Information);
    ok(out_params->timeout == -1000 * 10000, "got timeout %#I64x\n", out_params->timeout);
    ok(out_params->count == 1, "got count %u\n", out_params->count);
    ok(out_params->sockets[0].socket == listener, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(out_params->sockets[0].flags == AFD_POLL_ACCEPT, "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);

    in_params->timeout = now.QuadPart;
    in_params->sockets[0].flags = (~0) & ~AFD_POLL_ACCEPT;

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);
    ret = WaitForSingleObject(event, 100);
    ok(!ret, "got %#x\n", ret);
    ok(io.Status == STATUS_TIMEOUT, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[0]), "got %#Ix\n", io.Information);
    ok(!out_params->count, "got count %u\n", out_params->count);

    server = accept(listener, NULL, NULL);
    ok(server != -1, "got error %u\n", WSAGetLastError());
    set_blocking(server, FALSE);

    /* Test flags exposed by connected sockets. */

    check_poll(client, event, AFD_POLL_WRITE | AFD_POLL_CONNECT);
    check_poll(server, event, AFD_POLL_WRITE | AFD_POLL_CONNECT);

    /* It is valid to poll on a socket other than the one passed to
     * NtDeviceIoControlFile(). */

    in_params->count = 1;
    in_params->sockets[0].socket = server;
    in_params->sockets[0].flags = ~0;

    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[1]), "got %#Ix\n", io.Information);
    ok(out_params->count == 1, "got count %u\n", out_params->count);
    ok(out_params->sockets[0].socket == server, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(out_params->sockets[0].flags == (AFD_POLL_WRITE | AFD_POLL_CONNECT),
            "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);

    /* Test sending data. */

    ret = send(server, "data", 5, 0);
    ok(ret == 5, "got %d\n", ret);

    check_poll(client, event, AFD_POLL_WRITE | AFD_POLL_CONNECT | AFD_POLL_READ);
    check_poll(server, event, AFD_POLL_WRITE | AFD_POLL_CONNECT);

    while (send(server, large_buffer, large_buffer_size, 0) == large_buffer_size);

    check_poll(client, event, AFD_POLL_WRITE | AFD_POLL_CONNECT | AFD_POLL_READ);
    check_poll(server, event, AFD_POLL_CONNECT);

    /* Test sending out-of-band data. */

    ret = send(client, "a", 1, MSG_OOB);
    ok(ret == 1, "got %d\n", ret);

    check_poll(client, event, AFD_POLL_WRITE | AFD_POLL_CONNECT | AFD_POLL_READ);
    check_poll(server, event, AFD_POLL_CONNECT | AFD_POLL_OOB);

    ret = recv(server, large_buffer, 1, MSG_OOB);
    ok(ret == 1, "got %d\n", ret);

    check_poll(client, event, AFD_POLL_WRITE | AFD_POLL_CONNECT | AFD_POLL_READ);
    check_poll(server, event, AFD_POLL_CONNECT);

    ret = 1;
    ret = setsockopt(server, SOL_SOCKET, SO_OOBINLINE, (char *)&ret, sizeof(ret));
    ok(!ret, "got error %u\n", WSAGetLastError());

    ret = send(client, "a", 1, MSG_OOB);
    ok(ret == 1, "got %d\n", ret);

    check_poll(client, event, AFD_POLL_WRITE | AFD_POLL_CONNECT | AFD_POLL_READ);
    check_poll(server, event, AFD_POLL_CONNECT | AFD_POLL_READ);

    closesocket(client);
    closesocket(server);

    /* Test shutdown. */

    client = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    ret = connect(client, (struct sockaddr *)&addr, sizeof(addr));
    ok(!ret, "got error %u\n", WSAGetLastError());
    server = accept(listener, NULL, NULL);
    ok(server != -1, "got error %u\n", WSAGetLastError());

    ret = shutdown(client, SD_RECEIVE);
    ok(!ret, "got error %u\n", WSAGetLastError());

    check_poll(client, event, AFD_POLL_WRITE | AFD_POLL_CONNECT);
    check_poll(server, event, AFD_POLL_WRITE | AFD_POLL_CONNECT);

    ret = shutdown(client, SD_SEND);
    ok(!ret, "got error %u\n", WSAGetLastError());

    check_poll(client, event, AFD_POLL_WRITE | AFD_POLL_CONNECT);
    check_poll(server, event, AFD_POLL_WRITE | AFD_POLL_CONNECT | AFD_POLL_HUP);

    closesocket(client);
    closesocket(server);

    /* Test shutdown with data in the pipe. */

    client = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    ret = connect(client, (struct sockaddr *)&addr, sizeof(addr));
    ok(!ret, "got error %u\n", WSAGetLastError());
    server = accept(listener, NULL, NULL);
    ok(server != -1, "got error %u\n", WSAGetLastError());

    ret = send(client, "data", 5, 0);
    ok(ret == 5, "got %d\n", ret);

    check_poll(client, event, AFD_POLL_WRITE | AFD_POLL_CONNECT);
    check_poll(server, event, AFD_POLL_WRITE | AFD_POLL_CONNECT | AFD_POLL_READ);

    ret = shutdown(client, SD_SEND);
    ok(!ret, "got error %u\n", WSAGetLastError());

    check_poll(client, event, AFD_POLL_WRITE | AFD_POLL_CONNECT);
    check_poll_todo(server, event, AFD_POLL_WRITE | AFD_POLL_CONNECT | AFD_POLL_READ | AFD_POLL_HUP);

    /* Test closing a socket while polling on it. Note that AFD_POLL_CLOSE
     * is always returned, regardless of whether it's polled for. */

    in_params->timeout = -1000 * 10000;
    in_params->count = 1;
    in_params->sockets[0].socket = client;
    in_params->sockets[0].flags = 0;

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    closesocket(client);

    ret = WaitForSingleObject(event, 100);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[1]), "got %#Ix\n", io.Information);
    ok(out_params->count == 1, "got count %u\n", out_params->count);
    ok(out_params->sockets[0].socket == client, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(out_params->sockets[0].flags == AFD_POLL_CLOSE,
            "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);

    closesocket(server);

    /* Test a failed connection.
     *
     * The following poll works even where the equivalent WSAPoll() call fails.
     * However, it can take over 2 seconds to complete on the testbot. */

    if (winetest_interactive)
    {
        client = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
        set_blocking(client, FALSE);

        in_params->timeout = -10000 * 10000;
        in_params->count = 1;
        in_params->sockets[0].socket = client;
        in_params->sockets[0].flags = ~0;

        ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
                IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
        ok(ret == STATUS_PENDING, "got %#x\n", ret);

        addr.sin_port = 255;
        ret = connect(client, (struct sockaddr *)&addr, sizeof(addr));
        ok(!ret || WSAGetLastError() == WSAEWOULDBLOCK, "got error %u\n", WSAGetLastError());

        ret = WaitForSingleObject(event, 10000);
        ok(!ret, "got %#x\n", ret);
        ok(!io.Status, "got %#x\n", io.Status);
        ok(io.Information == offsetof(struct afd_poll_params, sockets[1]), "got %#Ix\n", io.Information);
        ok(out_params->count == 1, "got count %u\n", out_params->count);
        ok(out_params->sockets[0].socket == client, "got socket %#Ix\n", out_params->sockets[0].socket);
        ok(out_params->sockets[0].flags == AFD_POLL_CONNECT_ERR, "got flags %#x\n", out_params->sockets[0].flags);
        ok(out_params->sockets[0].status == STATUS_CONNECTION_REFUSED, "got status %#x\n", out_params->sockets[0].status);

        closesocket(client);
    }

    /* Test supplying multiple handles to the ioctl. */

    len = sizeof(addr);
    ret = getsockname(listener, (struct sockaddr *)&addr, &len);
    ok(!ret, "got error %u\n", WSAGetLastError());

    client = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    ret = connect(client, (struct sockaddr *)&addr, sizeof(addr));
    ok(!ret, "got error %u\n", WSAGetLastError());
    server = accept(listener, NULL, NULL);
    ok(server != -1, "got error %u\n", WSAGetLastError());

    in_params->count = 2;
    in_params->sockets[0].socket = client;
    in_params->sockets[0].flags = AFD_POLL_READ;
    in_params->sockets[1].socket = server;
    in_params->sockets[1].flags = AFD_POLL_READ;

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);

    params_size = offsetof(struct afd_poll_params, sockets[2]);

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    ret = send(client, "data", 5, 0);
    ok(ret == 5, "got %d\n", ret);

    ret = WaitForSingleObject(event, 100);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[1]), "got %#Ix\n", io.Information);
    ok(out_params->count == 1, "got count %u\n", out_params->count);
    ok(out_params->sockets[0].socket == server, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(out_params->sockets[0].flags == AFD_POLL_READ, "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);

    in_params->count = 2;
    in_params->sockets[0].socket = client;
    in_params->sockets[0].flags = AFD_POLL_READ | AFD_POLL_WRITE;
    in_params->sockets[1].socket = server;
    in_params->sockets[1].flags = AFD_POLL_READ | AFD_POLL_WRITE;

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[2]), "got %#Ix\n", io.Information);
    ok(out_params->count == 2, "got count %u\n", out_params->count);
    ok(out_params->sockets[0].socket == client, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(out_params->sockets[0].flags == AFD_POLL_WRITE, "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);
    ok(out_params->sockets[1].socket == server, "got socket %#Ix\n", out_params->sockets[1].socket);
    ok(out_params->sockets[1].flags == (AFD_POLL_READ | AFD_POLL_WRITE),
            "got flags %#x\n", out_params->sockets[1].flags);
    ok(!out_params->sockets[1].status, "got status %#x\n", out_params->sockets[1].status);

    in_params->count = 2;
    in_params->sockets[0].socket = client;
    in_params->sockets[0].flags = AFD_POLL_READ | AFD_POLL_WRITE;
    in_params->sockets[1].socket = server;
    in_params->sockets[1].flags = AFD_POLL_READ | AFD_POLL_WRITE;

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[2]), "got %#Ix\n", io.Information);
    ok(out_params->count == 2, "got count %u\n", out_params->count);
    ok(out_params->sockets[0].socket == client, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(out_params->sockets[0].flags == AFD_POLL_WRITE, "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);
    ok(out_params->sockets[1].socket == server, "got socket %#Ix\n", out_params->sockets[1].socket);
    ok(out_params->sockets[1].flags == (AFD_POLL_READ | AFD_POLL_WRITE),
            "got flags %#x\n", out_params->sockets[1].flags);
    ok(!out_params->sockets[1].status, "got status %#x\n", out_params->sockets[1].status);

    /* Close a socket while polling on another. */

    in_params->timeout = -100 * 10000;
    in_params->count = 1;
    in_params->sockets[0].socket = client;
    in_params->sockets[0].flags = AFD_POLL_READ;
    params_size = offsetof(struct afd_poll_params, sockets[1]);

    ret = NtDeviceIoControlFile((HANDLE)server, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    closesocket(server);

    ret = WaitForSingleObject(event, 1000);
    ok(!ret, "got %#x\n", ret);
    todo_wine ok(io.Status == STATUS_TIMEOUT, "got %#x\n", io.Status);
    todo_wine ok(io.Information == offsetof(struct afd_poll_params, sockets[0]), "got %#Ix\n", io.Information);
    todo_wine ok(!out_params->count, "got count %u\n", out_params->count);

    closesocket(client);

    closesocket(listener);

    /* Test UDP sockets. */

    client = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
    server = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);

    check_poll(client, event, AFD_POLL_WRITE);
    check_poll(server, event, AFD_POLL_WRITE);

    ret = bind(client, (const struct sockaddr *)&bind_addr, sizeof(bind_addr));
    ok(!ret, "got error %u\n", WSAGetLastError());
    len = sizeof(addr);
    ret = getsockname(listener, (struct sockaddr *)&addr, &len);
    ok(!ret, "got error %u\n", WSAGetLastError());

    check_poll(client, event, AFD_POLL_WRITE);
    check_poll(server, event, AFD_POLL_WRITE);

    in_params->timeout = -1000 * 10000;
    in_params->count = 1;
    in_params->sockets[0].socket = client;
    in_params->sockets[0].flags = (~0) & ~AFD_POLL_WRITE;
    params_size = offsetof(struct afd_poll_params, sockets[1]);

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    ret = sendto(server, "data", 5, 0, (struct sockaddr *)&addr, sizeof(addr));
    ok(ret == 5, "got %d\n", ret);

    ret = WaitForSingleObject(event, 100);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[1]), "got %#Ix\n", io.Information);
    ok(out_params->count == 1, "got count %u\n", out_params->count);
    ok(out_params->sockets[0].socket == client, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(out_params->sockets[0].flags == AFD_POLL_READ, "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);

    closesocket(client);
    closesocket(server);

    /* Passing any invalid sockets yields STATUS_INVALID_HANDLE.
     *
     * Note however that WSAPoll() happily accepts invalid sockets. It seems
     * user-side cached data is used: closing a handle with CloseHandle() before
     * passing it to WSAPoll() yields ENOTSOCK. */

    tcp_socketpair(&client, &server);

    in_params->count = 2;
    in_params->sockets[0].socket = 0xabacab;
    in_params->sockets[0].flags = AFD_POLL_READ | AFD_POLL_WRITE;
    in_params->sockets[1].socket = client;
    in_params->sockets[1].flags = AFD_POLL_READ | AFD_POLL_WRITE;
    params_size = offsetof(struct afd_poll_params, sockets[2]);

    memset(&io, 0, sizeof(io));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_INVALID_HANDLE, "got %#x\n", ret);
    todo_wine ok(!io.Status, "got %#x\n", io.Status);
    ok(!io.Information, "got %#Ix\n", io.Information);

    /* Test passing the same handle twice. */

    in_params->count = 3;
    in_params->sockets[0].socket = client;
    in_params->sockets[0].flags = AFD_POLL_READ | AFD_POLL_WRITE;
    in_params->sockets[1].socket = client;
    in_params->sockets[1].flags = AFD_POLL_READ | AFD_POLL_WRITE;
    in_params->sockets[2].socket = client;
    in_params->sockets[2].flags = AFD_POLL_READ | AFD_POLL_WRITE | AFD_POLL_CONNECT;
    params_size = offsetof(struct afd_poll_params, sockets[3]);

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[3]), "got %#Ix\n", io.Information);
    ok(out_params->count == 3, "got count %u\n", out_params->count);
    ok(out_params->sockets[0].socket == client, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(out_params->sockets[0].flags == AFD_POLL_WRITE, "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);
    ok(out_params->sockets[1].socket == client, "got socket %#Ix\n", out_params->sockets[1].socket);
    ok(out_params->sockets[1].flags == AFD_POLL_WRITE, "got flags %#x\n", out_params->sockets[1].flags);
    ok(!out_params->sockets[1].status, "got status %#x\n", out_params->sockets[1].status);
    ok(out_params->sockets[2].socket == client, "got socket %#Ix\n", out_params->sockets[2].socket);
    ok(out_params->sockets[2].flags == (AFD_POLL_WRITE | AFD_POLL_CONNECT),
            "got flags %#x\n", out_params->sockets[2].flags);
    ok(!out_params->sockets[2].status, "got status %#x\n", out_params->sockets[2].status);

    in_params->count = 2;
    in_params->sockets[0].socket = client;
    in_params->sockets[0].flags = AFD_POLL_READ;
    in_params->sockets[1].socket = client;
    in_params->sockets[1].flags = AFD_POLL_READ;
    params_size = offsetof(struct afd_poll_params, sockets[2]);

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, in_params, params_size, out_params, params_size);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    ret = send(server, "data", 5, 0);
    ok(ret == 5, "got %d\n", ret);

    ret = WaitForSingleObject(event, 100);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == offsetof(struct afd_poll_params, sockets[1]), "got %#Ix\n", io.Information);
    ok(out_params->count == 1, "got count %u\n", out_params->count);
    ok(out_params->sockets[0].socket == client, "got socket %#Ix\n", out_params->sockets[0].socket);
    ok(out_params->sockets[0].flags == AFD_POLL_READ, "got flags %#x\n", out_params->sockets[0].flags);
    ok(!out_params->sockets[0].status, "got status %#x\n", out_params->sockets[0].status);

    closesocket(client);
    closesocket(server);

    CloseHandle(event);
    free(large_buffer);
}

static void test_poll_completion_port(void)
{
    struct afd_poll_params params = {0};
    LARGE_INTEGER zero = {{0}};
    SOCKET client, server;
    ULONG_PTR key, value;
    IO_STATUS_BLOCK io;
    HANDLE event, port;
    int ret;

    event = CreateEventW(NULL, TRUE, FALSE, NULL);
    tcp_socketpair(&client, &server);
    port = CreateIoCompletionPort((HANDLE)client, NULL, 0, 0);

    params.timeout = -100 * 10000;
    params.count = 1;
    params.sockets[0].socket = client;
    params.sockets[0].flags = AFD_POLL_WRITE;
    params.sockets[0].status = 0xdeadbeef;

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_POLL, &params, sizeof(params), &params, sizeof(params));
    ok(!ret, "got %#x\n", ret);

    ret = NtRemoveIoCompletion(port, &key, &value, &io, &zero);
    ok(ret == STATUS_TIMEOUT, "got %#x\n", ret);

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, (void *)0xdeadbeef, &io,
            IOCTL_AFD_POLL, &params, sizeof(params), &params, sizeof(params));
    ok(!ret, "got %#x\n", ret);

    ret = NtRemoveIoCompletion(port, &key, &value, &io, &zero);
    ok(!ret, "got %#x\n", ret);
    ok(!key, "got key %#Ix\n", key);
    ok(value == 0xdeadbeef, "got value %#Ix\n", value);

    params.timeout = 0;
    params.count = 1;
    params.sockets[0].socket = client;
    params.sockets[0].flags = AFD_POLL_READ;
    params.sockets[0].status = 0xdeadbeef;

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, (void *)0xdeadbeef, &io,
            IOCTL_AFD_POLL, &params, sizeof(params), &params, sizeof(params));
    ok(!ret, "got %#x\n", ret);

    ret = NtRemoveIoCompletion(port, &key, &value, &io, &zero);
    ok(!ret, "got %#x\n", ret);
    ok(!key, "got key %#Ix\n", key);
    ok(value == 0xdeadbeef, "got value %#Ix\n", value);

    /* Close a socket while polling on another. */

    params.timeout = -100 * 10000;
    params.count = 1;
    params.sockets[0].socket = server;
    params.sockets[0].flags = AFD_POLL_READ;
    params.sockets[0].status = 0xdeadbeef;

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, (void *)0xdeadbeef, &io,
            IOCTL_AFD_POLL, &params, sizeof(params), &params, sizeof(params));
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    closesocket(client);

    ret = WaitForSingleObject(event, 1000);
    ok(!ret, "got %#x\n", ret);
    todo_wine ok(io.Status == STATUS_TIMEOUT, "got %#x\n", io.Status);
    todo_wine ok(io.Information == offsetof(struct afd_poll_params, sockets[0]), "got %#Ix\n", io.Information);
    todo_wine ok(!params.count, "got count %u\n", params.count);

    ret = NtRemoveIoCompletion(port, &key, &value, &io, &zero);
    ok(!ret, "got %#x\n", ret);
    ok(!key, "got key %#Ix\n", key);
    ok(value == 0xdeadbeef, "got value %#Ix\n", value);

    CloseHandle(port);
    closesocket(server);
    CloseHandle(event);
}

static void test_recv(void)
{
    const struct sockaddr_in bind_addr = {.sin_family = AF_INET, .sin_addr.s_addr = htonl(INADDR_LOOPBACK)};
    struct afd_recv_params params = {0};
    SOCKET client, server, listener;
    struct sockaddr addr;
    IO_STATUS_BLOCK io;
    WSABUF wsabufs[2];
    char buffer[8];
    HANDLE event;
    int ret, len;

    event = CreateEventW(NULL, TRUE, FALSE, NULL);

    listener = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    ret = bind(listener, (const struct sockaddr *)&bind_addr, sizeof(bind_addr));
    ok(!ret, "got error %u\n", WSAGetLastError());
    ret = listen(listener, 1);
    ok(!ret, "got error %u\n", WSAGetLastError());
    len = sizeof(addr);
    ret = getsockname(listener, (struct sockaddr *)&addr, &len);
    ok(!ret, "got error %u\n", WSAGetLastError());

    memset(&io, 0, sizeof(io));
    ret = NtDeviceIoControlFile((HANDLE)listener, event, NULL, NULL, &io, IOCTL_AFD_RECV, NULL, 0, NULL, 0);
    todo_wine ok(ret == STATUS_INVALID_CONNECTION, "got %#x\n", ret);
    todo_wine ok(!io.Status, "got status %#x\n", io.Status);
    ok(!io.Information, "got information %#Ix\n", io.Information);

    client = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    ret = connect(client, (struct sockaddr *)&addr, sizeof(addr));
    ok(!ret, "got error %u\n", WSAGetLastError());
    server = accept(listener, NULL, NULL);
    ok(server != -1, "got error %u\n", WSAGetLastError());

    memset(&io, 0, sizeof(io));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io, IOCTL_AFD_RECV, NULL, 0, NULL, 0);
    ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);
    todo_wine ok(!io.Status, "got status %#x\n", io.Status);
    ok(!io.Information, "got information %#Ix\n", io.Information);

    wsabufs[0].len = sizeof(buffer);
    wsabufs[0].buf = buffer;
    params.buffers = wsabufs;
    params.count = 1;
    params.msg_flags = AFD_MSG_NOT_OOB;

    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params) - 1, NULL, 0);
    ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);

    memset(&io, 0, sizeof(io));
    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);
    ok(!io.Status, "got status %#x\n", io.Status);
    ok(!io.Information, "got information %#Ix\n", io.Information);

    /* These structures need not remain valid. */
    memset(&params, 0xcc, sizeof(params));
    memset(wsabufs, 0xcc, sizeof(wsabufs));

    ret = send(server, "data", 5, 0);
    ok(ret == 5, "got %d\n", ret);

    ret = WaitForSingleObject(event, 200);
    ok(!ret, "wait timed out\n");
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == 5, "got %#Ix\n", io.Information);
    ok(!strcmp(buffer, "data"), "got %s\n", debugstr_an(buffer, io.Information));

    /* Test with multiple buffers. */

    wsabufs[0].len = 2;
    wsabufs[0].buf = buffer;
    wsabufs[1].len = 4;
    wsabufs[1].buf = buffer + 3;
    memset(&params, 0, sizeof(params));
    params.buffers = wsabufs;
    params.count = 2;
    params.msg_flags = AFD_MSG_NOT_OOB;

    memset(&io, 0, sizeof(io));
    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);
    ok(!io.Status, "got status %#x\n", io.Status);
    ok(!io.Information, "got information %#Ix\n", io.Information);

    ret = send(server, "data", 5, 0);
    ok(ret == 5, "got %d\n", ret);

    ret = WaitForSingleObject(event, 200);
    ok(!ret, "wait timed out\n");
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == 5, "got %#Ix\n", io.Information);
    ok(!strcmp(buffer, "da\xccta"), "got %s\n", debugstr_an(buffer, io.Information));

    /* Test synchronous return. */

    ret = send(server, "data", 5, 0);
    ok(ret == 5, "got %d\n", ret);

    memset(&io, 0xcc, sizeof(io));
    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == 5, "got %#Ix\n", io.Information);
    ok(!strcmp(buffer, "da\xccta"), "got %s\n", debugstr_an(buffer, io.Information));

    /* Test nonblocking mode. */

    set_blocking(client, FALSE);

    memset(&io, 0, sizeof(io));
    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_DEVICE_NOT_READY, "got %#x\n", ret);
    todo_wine ok(!io.Status, "got status %#x\n", io.Status);
    ok(!io.Information, "got information %#Ix\n", io.Information);

    ret = send(server, "data", 5, 0);
    ok(ret == 5, "got %d\n", ret);

    memset(&io, 0xcc, sizeof(io));
    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == 5, "got %#Ix\n", io.Information);
    ok(!strcmp(buffer, "da\xccta"), "got %s\n", debugstr_an(buffer, io.Information));

    params.recv_flags = AFD_RECV_FORCE_ASYNC;

    memset(&io, 0, sizeof(io));
    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);
    todo_wine ok(!io.Status, "got status %#x\n", io.Status);
    todo_wine ok(!io.Information, "got information %#Ix\n", io.Information);

    ret = send(server, "data", 5, 0);
    ok(ret == 5, "got %d\n", ret);

    ret = WaitForSingleObject(event, 200);
    ok(!ret, "wait timed out\n");
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == 5, "got %#Ix\n", io.Information);
    ok(!strcmp(buffer, "da\xccta"), "got %s\n", debugstr_an(buffer, io.Information));

    params.recv_flags = 0;

    set_blocking(client, TRUE);

    /* Test flags. */

    ret = send(server, "a", 1, MSG_OOB);
    ok(ret == 1, "got %d\n", ret);

    ret = send(server, "data", 5, 0);
    ok(ret == 5, "got %d\n", ret);

    memset(&io, 0xcc, sizeof(io));
    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == 5, "got %#Ix\n", io.Information);
    ok(!strcmp(buffer, "da\xccta"), "got %s\n", debugstr_an(buffer, io.Information));

    params.msg_flags = 0;

    io.Status = 0xdeadbeef;
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);
    todo_wine ok(io.Status == 0xdeadbeef, "got %#x\n", io.Status);

    params.msg_flags = AFD_MSG_OOB | AFD_MSG_NOT_OOB;

    io.Status = 0xdeadbeef;
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);
    todo_wine ok(io.Status == 0xdeadbeef, "got %#x\n", io.Status);

    params.msg_flags = AFD_MSG_OOB;

    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    todo_wine ok(!ret, "got %#x\n", ret);
    todo_wine ok(!io.Status, "got %#x\n", io.Status);
    todo_wine ok(io.Information == 1, "got %#Ix\n", io.Information);
    todo_wine ok(buffer[0] == 'a', "got %s\n", debugstr_an(buffer, io.Information));

    params.msg_flags = AFD_MSG_NOT_OOB | AFD_MSG_PEEK;

    ret = send(server, "data", 4, 0);
    ok(ret == 4, "got %d\n", ret);

    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == 4, "got %#Ix\n", io.Information);
    ok(!memcmp(buffer, "da\xccta", 5), "got %s\n", debugstr_an(buffer, io.Information));

    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(!ret, "got %#x\n", ret);
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == 4, "got %#Ix\n", io.Information);
    ok(!memcmp(buffer, "da\xccta", 5), "got %s\n", debugstr_an(buffer, io.Information));

    params.msg_flags = AFD_MSG_NOT_OOB | AFD_MSG_WAITALL;

    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    todo_wine ok(ret == STATUS_PENDING, "got %#x\n", ret);

    if (ret == STATUS_PENDING)
    {
        ret = send(server, "s", 2, 0);
        ok(ret == 2, "got %d\n", ret);

        ret = WaitForSingleObject(event, 200);
        ok(!ret, "wait timed out\n");
        ok(!io.Status, "got %#x\n", io.Status);
        ok(io.Information == 6, "got %#Ix\n", io.Information);
        ok(!strcmp(buffer, "da\xcctas"), "got %s\n", debugstr_an(buffer, io.Information));
    }

    params.msg_flags = AFD_MSG_NOT_OOB;

    /* Test shutdown. */

    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    closesocket(server);

    ret = WaitForSingleObject(event, 200);
    ok(!ret, "wait timed out\n");
    ok(!io.Status, "got %#x\n", io.Status);
    ok(!io.Information, "got %#Ix\n", io.Information);

    ret = shutdown(client, SD_RECEIVE);
    ok(!ret, "got error %u\n", WSAGetLastError());

    memset(&io, 0, sizeof(io));
    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    todo_wine ok(ret == STATUS_PIPE_DISCONNECTED, "got %#x\n", ret);
    ok(!io.Status, "got status %#x\n", io.Status);
    ok(!io.Information, "got information %#Ix\n", io.Information);

    closesocket(client);
    closesocket(listener);

    /* Test UDP datagrams. */

    client = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
    server = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);

    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    todo_wine ok(ret == STATUS_INVALID_PARAMETER, "got %#x\n", ret);
    if (ret == STATUS_PENDING)
        CancelIo((HANDLE)client);

    ret = bind(client, (const struct sockaddr *)&bind_addr, sizeof(bind_addr));
    ok(!ret, "got error %u\n", WSAGetLastError());
    len = sizeof(addr);
    ret = getsockname(listener, (struct sockaddr *)&addr, &len);
    ok(!ret, "got error %u\n", WSAGetLastError());

    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    ret = sendto(server, "data", 5, 0, (struct sockaddr *)&addr, sizeof(addr));
    ok(ret == 5, "got %d\n", ret);

    ret = WaitForSingleObject(event, 200);
    ok(!ret, "wait timed out\n");
    ok(!io.Status, "got %#x\n", io.Status);
    ok(io.Information == 5, "got %#Ix\n", io.Information);
    ok(!strcmp(buffer, "da\xccta"), "got %s\n", debugstr_an(buffer, io.Information));

    /* Test a short read of a UDP datagram. */

    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    ret = sendto(server, "moredata", 9, 0, (struct sockaddr *)&addr, sizeof(addr));
    ok(ret == 9, "got %d\n", ret);

    ret = WaitForSingleObject(event, 200);
    ok(!ret, "wait timed out\n");
    ok(io.Status == STATUS_BUFFER_OVERFLOW, "got %#x\n", io.Status);
    ok(io.Information == 6, "got %#Ix\n", io.Information);
    ok(!memcmp(buffer, "mo\xccreda\xcc", 7), "got %s\n", debugstr_an(buffer, io.Information));

    ret = sendto(server, "moredata", 9, 0, (struct sockaddr *)&addr, sizeof(addr));
    ok(ret == 9, "got %d\n", ret);

    memset(&io, 0, sizeof(io));
    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_BUFFER_OVERFLOW, "got %#x\n", ret);
    ok(io.Status == STATUS_BUFFER_OVERFLOW, "got %#x\n", io.Status);
    ok(io.Information == 6, "got %#Ix\n", io.Information);
    ok(!memcmp(buffer, "mo\xccreda\xcc", 7), "got %s\n", debugstr_an(buffer, io.Information));

    /* Test closing a socket during an async. */

    memset(buffer, 0xcc, sizeof(buffer));
    ret = NtDeviceIoControlFile((HANDLE)client, event, NULL, NULL, &io,
            IOCTL_AFD_RECV, &params, sizeof(params), NULL, 0);
    ok(ret == STATUS_PENDING, "got %#x\n", ret);

    closesocket(client);

    ret = WaitForSingleObject(event, 200);
    ok(!ret, "wait timed out\n");
    todo_wine ok(io.Status == STATUS_CANCELLED, "got %#x\n", io.Status);
    ok(!io.Information, "got %#Ix\n", io.Information);

    closesocket(server);
    CloseHandle(event);
}

START_TEST(afd)
{
    WSADATA data;

    WSAStartup(MAKEWORD(2, 2), &data);

    test_open_device();
    test_poll();
    test_poll_completion_port();
    test_recv();

    WSACleanup();
}