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-rw-r--r--qemu/net/tap-win32.c820
1 files changed, 0 insertions, 820 deletions
diff --git a/qemu/net/tap-win32.c b/qemu/net/tap-win32.c
deleted file mode 100644
index f1e142ace..000000000
--- a/qemu/net/tap-win32.c
+++ /dev/null
@@ -1,820 +0,0 @@
-/*
- * TAP-Win32 -- A kernel driver to provide virtual tap device functionality
- * on Windows. Originally derived from the CIPE-Win32
- * project by Damion K. Wilson, with extensive modifications by
- * James Yonan.
- *
- * All source code which derives from the CIPE-Win32 project is
- * Copyright (C) Damion K. Wilson, 2003, and is released under the
- * GPL version 2 (see below).
- *
- * All other source code is Copyright (C) James Yonan, 2003-2004,
- * and is released under the GPL version 2 (see below).
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program (see the file COPYING included with this
- * distribution); if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "tap_int.h"
-
-#include "qemu-common.h"
-#include "clients.h" /* net_init_tap */
-#include "net/net.h"
-#include "net/tap.h" /* tap_has_ufo, ... */
-#include "sysemu/sysemu.h"
-#include "qemu/error-report.h"
-#include <windows.h>
-#include <winioctl.h>
-
-//=============
-// TAP IOCTLs
-//=============
-
-#define TAP_CONTROL_CODE(request,method) \
- CTL_CODE (FILE_DEVICE_UNKNOWN, request, method, FILE_ANY_ACCESS)
-
-#define TAP_IOCTL_GET_MAC TAP_CONTROL_CODE (1, METHOD_BUFFERED)
-#define TAP_IOCTL_GET_VERSION TAP_CONTROL_CODE (2, METHOD_BUFFERED)
-#define TAP_IOCTL_GET_MTU TAP_CONTROL_CODE (3, METHOD_BUFFERED)
-#define TAP_IOCTL_GET_INFO TAP_CONTROL_CODE (4, METHOD_BUFFERED)
-#define TAP_IOCTL_CONFIG_POINT_TO_POINT TAP_CONTROL_CODE (5, METHOD_BUFFERED)
-#define TAP_IOCTL_SET_MEDIA_STATUS TAP_CONTROL_CODE (6, METHOD_BUFFERED)
-#define TAP_IOCTL_CONFIG_DHCP_MASQ TAP_CONTROL_CODE (7, METHOD_BUFFERED)
-#define TAP_IOCTL_GET_LOG_LINE TAP_CONTROL_CODE (8, METHOD_BUFFERED)
-#define TAP_IOCTL_CONFIG_DHCP_SET_OPT TAP_CONTROL_CODE (9, METHOD_BUFFERED)
-
-//=================
-// Registry keys
-//=================
-
-#define ADAPTER_KEY "SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
-
-#define NETWORK_CONNECTIONS_KEY "SYSTEM\\CurrentControlSet\\Control\\Network\\{4D36E972-E325-11CE-BFC1-08002BE10318}"
-
-//======================
-// Filesystem prefixes
-//======================
-
-#define USERMODEDEVICEDIR "\\\\.\\Global\\"
-#define TAPSUFFIX ".tap"
-
-
-//======================
-// Compile time configuration
-//======================
-
-//#define DEBUG_TAP_WIN32
-
-/* FIXME: The asynch write path appears to be broken at
- * present. WriteFile() ignores the lpNumberOfBytesWritten parameter
- * for overlapped writes, with the result we return zero bytes sent,
- * and after handling a single packet, receive is disabled for this
- * interface. */
-/* #define TUN_ASYNCHRONOUS_WRITES 1 */
-
-#define TUN_BUFFER_SIZE 1560
-#define TUN_MAX_BUFFER_COUNT 32
-
-/*
- * The data member "buffer" must be the first element in the tun_buffer
- * structure. See the function, tap_win32_free_buffer.
- */
-typedef struct tun_buffer_s {
- unsigned char buffer [TUN_BUFFER_SIZE];
- unsigned long read_size;
- struct tun_buffer_s* next;
-} tun_buffer_t;
-
-typedef struct tap_win32_overlapped {
- HANDLE handle;
- HANDLE read_event;
- HANDLE write_event;
- HANDLE output_queue_semaphore;
- HANDLE free_list_semaphore;
- HANDLE tap_semaphore;
- CRITICAL_SECTION output_queue_cs;
- CRITICAL_SECTION free_list_cs;
- OVERLAPPED read_overlapped;
- OVERLAPPED write_overlapped;
- tun_buffer_t buffers[TUN_MAX_BUFFER_COUNT];
- tun_buffer_t* free_list;
- tun_buffer_t* output_queue_front;
- tun_buffer_t* output_queue_back;
-} tap_win32_overlapped_t;
-
-static tap_win32_overlapped_t tap_overlapped;
-
-static tun_buffer_t* get_buffer_from_free_list(tap_win32_overlapped_t* const overlapped)
-{
- tun_buffer_t* buffer = NULL;
- WaitForSingleObject(overlapped->free_list_semaphore, INFINITE);
- EnterCriticalSection(&overlapped->free_list_cs);
- buffer = overlapped->free_list;
-// assert(buffer != NULL);
- overlapped->free_list = buffer->next;
- LeaveCriticalSection(&overlapped->free_list_cs);
- buffer->next = NULL;
- return buffer;
-}
-
-static void put_buffer_on_free_list(tap_win32_overlapped_t* const overlapped, tun_buffer_t* const buffer)
-{
- EnterCriticalSection(&overlapped->free_list_cs);
- buffer->next = overlapped->free_list;
- overlapped->free_list = buffer;
- LeaveCriticalSection(&overlapped->free_list_cs);
- ReleaseSemaphore(overlapped->free_list_semaphore, 1, NULL);
-}
-
-static tun_buffer_t* get_buffer_from_output_queue(tap_win32_overlapped_t* const overlapped, const int block)
-{
- tun_buffer_t* buffer = NULL;
- DWORD result, timeout = block ? INFINITE : 0L;
-
- // Non-blocking call
- result = WaitForSingleObject(overlapped->output_queue_semaphore, timeout);
-
- switch (result)
- {
- // The semaphore object was signaled.
- case WAIT_OBJECT_0:
- EnterCriticalSection(&overlapped->output_queue_cs);
-
- buffer = overlapped->output_queue_front;
- overlapped->output_queue_front = buffer->next;
-
- if(overlapped->output_queue_front == NULL) {
- overlapped->output_queue_back = NULL;
- }
-
- LeaveCriticalSection(&overlapped->output_queue_cs);
- break;
-
- // Semaphore was nonsignaled, so a time-out occurred.
- case WAIT_TIMEOUT:
- // Cannot open another window.
- break;
- }
-
- return buffer;
-}
-
-static tun_buffer_t* get_buffer_from_output_queue_immediate (tap_win32_overlapped_t* const overlapped)
-{
- return get_buffer_from_output_queue(overlapped, 0);
-}
-
-static void put_buffer_on_output_queue(tap_win32_overlapped_t* const overlapped, tun_buffer_t* const buffer)
-{
- EnterCriticalSection(&overlapped->output_queue_cs);
-
- if(overlapped->output_queue_front == NULL && overlapped->output_queue_back == NULL) {
- overlapped->output_queue_front = overlapped->output_queue_back = buffer;
- } else {
- buffer->next = NULL;
- overlapped->output_queue_back->next = buffer;
- overlapped->output_queue_back = buffer;
- }
-
- LeaveCriticalSection(&overlapped->output_queue_cs);
-
- ReleaseSemaphore(overlapped->output_queue_semaphore, 1, NULL);
-}
-
-
-static int is_tap_win32_dev(const char *guid)
-{
- HKEY netcard_key;
- LONG status;
- DWORD len;
- int i = 0;
-
- status = RegOpenKeyEx(
- HKEY_LOCAL_MACHINE,
- ADAPTER_KEY,
- 0,
- KEY_READ,
- &netcard_key);
-
- if (status != ERROR_SUCCESS) {
- return FALSE;
- }
-
- for (;;) {
- char enum_name[256];
- char unit_string[256];
- HKEY unit_key;
- char component_id_string[] = "ComponentId";
- char component_id[256];
- char net_cfg_instance_id_string[] = "NetCfgInstanceId";
- char net_cfg_instance_id[256];
- DWORD data_type;
-
- len = sizeof (enum_name);
- status = RegEnumKeyEx(
- netcard_key,
- i,
- enum_name,
- &len,
- NULL,
- NULL,
- NULL,
- NULL);
-
- if (status == ERROR_NO_MORE_ITEMS)
- break;
- else if (status != ERROR_SUCCESS) {
- return FALSE;
- }
-
- snprintf (unit_string, sizeof(unit_string), "%s\\%s",
- ADAPTER_KEY, enum_name);
-
- status = RegOpenKeyEx(
- HKEY_LOCAL_MACHINE,
- unit_string,
- 0,
- KEY_READ,
- &unit_key);
-
- if (status != ERROR_SUCCESS) {
- return FALSE;
- } else {
- len = sizeof (component_id);
- status = RegQueryValueEx(
- unit_key,
- component_id_string,
- NULL,
- &data_type,
- (LPBYTE)component_id,
- &len);
-
- if (!(status != ERROR_SUCCESS || data_type != REG_SZ)) {
- len = sizeof (net_cfg_instance_id);
- status = RegQueryValueEx(
- unit_key,
- net_cfg_instance_id_string,
- NULL,
- &data_type,
- (LPBYTE)net_cfg_instance_id,
- &len);
-
- if (status == ERROR_SUCCESS && data_type == REG_SZ) {
- if (/* !strcmp (component_id, TAP_COMPONENT_ID) &&*/
- !strcmp (net_cfg_instance_id, guid)) {
- RegCloseKey (unit_key);
- RegCloseKey (netcard_key);
- return TRUE;
- }
- }
- }
- RegCloseKey (unit_key);
- }
- ++i;
- }
-
- RegCloseKey (netcard_key);
- return FALSE;
-}
-
-static int get_device_guid(
- char *name,
- int name_size,
- char *actual_name,
- int actual_name_size)
-{
- LONG status;
- HKEY control_net_key;
- DWORD len;
- int i = 0;
- int stop = 0;
-
- status = RegOpenKeyEx(
- HKEY_LOCAL_MACHINE,
- NETWORK_CONNECTIONS_KEY,
- 0,
- KEY_READ,
- &control_net_key);
-
- if (status != ERROR_SUCCESS) {
- return -1;
- }
-
- while (!stop)
- {
- char enum_name[256];
- char connection_string[256];
- HKEY connection_key;
- char name_data[256];
- DWORD name_type;
- const char name_string[] = "Name";
-
- len = sizeof (enum_name);
- status = RegEnumKeyEx(
- control_net_key,
- i,
- enum_name,
- &len,
- NULL,
- NULL,
- NULL,
- NULL);
-
- if (status == ERROR_NO_MORE_ITEMS)
- break;
- else if (status != ERROR_SUCCESS) {
- return -1;
- }
-
- snprintf(connection_string,
- sizeof(connection_string),
- "%s\\%s\\Connection",
- NETWORK_CONNECTIONS_KEY, enum_name);
-
- status = RegOpenKeyEx(
- HKEY_LOCAL_MACHINE,
- connection_string,
- 0,
- KEY_READ,
- &connection_key);
-
- if (status == ERROR_SUCCESS) {
- len = sizeof (name_data);
- status = RegQueryValueEx(
- connection_key,
- name_string,
- NULL,
- &name_type,
- (LPBYTE)name_data,
- &len);
-
- if (status != ERROR_SUCCESS || name_type != REG_SZ) {
- ++i;
- continue;
- }
- else {
- if (is_tap_win32_dev(enum_name)) {
- snprintf(name, name_size, "%s", enum_name);
- if (actual_name) {
- if (strcmp(actual_name, "") != 0) {
- if (strcmp(name_data, actual_name) != 0) {
- RegCloseKey (connection_key);
- ++i;
- continue;
- }
- }
- else {
- snprintf(actual_name, actual_name_size, "%s", name_data);
- }
- }
- stop = 1;
- }
- }
-
- RegCloseKey (connection_key);
- }
- ++i;
- }
-
- RegCloseKey (control_net_key);
-
- if (stop == 0)
- return -1;
-
- return 0;
-}
-
-static int tap_win32_set_status(HANDLE handle, int status)
-{
- unsigned long len = 0;
-
- return DeviceIoControl(handle, TAP_IOCTL_SET_MEDIA_STATUS,
- &status, sizeof (status),
- &status, sizeof (status), &len, NULL);
-}
-
-static void tap_win32_overlapped_init(tap_win32_overlapped_t* const overlapped, const HANDLE handle)
-{
- overlapped->handle = handle;
-
- overlapped->read_event = CreateEvent(NULL, FALSE, FALSE, NULL);
- overlapped->write_event = CreateEvent(NULL, FALSE, FALSE, NULL);
-
- overlapped->read_overlapped.Offset = 0;
- overlapped->read_overlapped.OffsetHigh = 0;
- overlapped->read_overlapped.hEvent = overlapped->read_event;
-
- overlapped->write_overlapped.Offset = 0;
- overlapped->write_overlapped.OffsetHigh = 0;
- overlapped->write_overlapped.hEvent = overlapped->write_event;
-
- InitializeCriticalSection(&overlapped->output_queue_cs);
- InitializeCriticalSection(&overlapped->free_list_cs);
-
- overlapped->output_queue_semaphore = CreateSemaphore(
- NULL, // default security attributes
- 0, // initial count
- TUN_MAX_BUFFER_COUNT, // maximum count
- NULL); // unnamed semaphore
-
- if(!overlapped->output_queue_semaphore) {
- fprintf(stderr, "error creating output queue semaphore!\n");
- }
-
- overlapped->free_list_semaphore = CreateSemaphore(
- NULL, // default security attributes
- TUN_MAX_BUFFER_COUNT, // initial count
- TUN_MAX_BUFFER_COUNT, // maximum count
- NULL); // unnamed semaphore
-
- if(!overlapped->free_list_semaphore) {
- fprintf(stderr, "error creating free list semaphore!\n");
- }
-
- overlapped->free_list = overlapped->output_queue_front = overlapped->output_queue_back = NULL;
-
- {
- unsigned index;
- for(index = 0; index < TUN_MAX_BUFFER_COUNT; index++) {
- tun_buffer_t* element = &overlapped->buffers[index];
- element->next = overlapped->free_list;
- overlapped->free_list = element;
- }
- }
- /* To count buffers, initially no-signal. */
- overlapped->tap_semaphore = CreateSemaphore(NULL, 0, TUN_MAX_BUFFER_COUNT, NULL);
- if(!overlapped->tap_semaphore)
- fprintf(stderr, "error creating tap_semaphore.\n");
-}
-
-static int tap_win32_write(tap_win32_overlapped_t *overlapped,
- const void *buffer, unsigned long size)
-{
- unsigned long write_size;
- BOOL result;
- DWORD error;
-
-#ifdef TUN_ASYNCHRONOUS_WRITES
- result = GetOverlappedResult( overlapped->handle, &overlapped->write_overlapped,
- &write_size, FALSE);
-
- if (!result && GetLastError() == ERROR_IO_INCOMPLETE)
- WaitForSingleObject(overlapped->write_event, INFINITE);
-#endif
-
- result = WriteFile(overlapped->handle, buffer, size,
- &write_size, &overlapped->write_overlapped);
-
-#ifdef TUN_ASYNCHRONOUS_WRITES
- /* FIXME: we can't sensibly set write_size here, without waiting
- * for the IO to complete! Moreover, we can't return zero,
- * because that will disable receive on this interface, and we
- * also can't assume it will succeed and return the full size,
- * because that will result in the buffer being reclaimed while
- * the IO is in progress. */
-#error Async writes are broken. Please disable TUN_ASYNCHRONOUS_WRITES.
-#else /* !TUN_ASYNCHRONOUS_WRITES */
- if (!result) {
- error = GetLastError();
- if (error == ERROR_IO_PENDING) {
- result = GetOverlappedResult(overlapped->handle,
- &overlapped->write_overlapped,
- &write_size, TRUE);
- }
- }
-#endif
-
- if (!result) {
-#ifdef DEBUG_TAP_WIN32
- LPTSTR msgbuf;
- error = GetLastError();
- FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
- NULL, error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
- &msgbuf, 0, NULL);
- fprintf(stderr, "Tap-Win32: Error WriteFile %d - %s\n", error, msgbuf);
- LocalFree(msgbuf);
-#endif
- return 0;
- }
-
- return write_size;
-}
-
-static DWORD WINAPI tap_win32_thread_entry(LPVOID param)
-{
- tap_win32_overlapped_t *overlapped = (tap_win32_overlapped_t*)param;
- unsigned long read_size;
- BOOL result;
- DWORD dwError;
- tun_buffer_t* buffer = get_buffer_from_free_list(overlapped);
-
-
- for (;;) {
- result = ReadFile(overlapped->handle,
- buffer->buffer,
- sizeof(buffer->buffer),
- &read_size,
- &overlapped->read_overlapped);
- if (!result) {
- dwError = GetLastError();
- if (dwError == ERROR_IO_PENDING) {
- WaitForSingleObject(overlapped->read_event, INFINITE);
- result = GetOverlappedResult( overlapped->handle, &overlapped->read_overlapped,
- &read_size, FALSE);
- if (!result) {
-#ifdef DEBUG_TAP_WIN32
- LPVOID lpBuffer;
- dwError = GetLastError();
- FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
- NULL, dwError, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
- (LPTSTR) & lpBuffer, 0, NULL );
- fprintf(stderr, "Tap-Win32: Error GetOverlappedResult %d - %s\n", dwError, lpBuffer);
- LocalFree( lpBuffer );
-#endif
- }
- } else {
-#ifdef DEBUG_TAP_WIN32
- LPVOID lpBuffer;
- FormatMessage( FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
- NULL, dwError, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
- (LPTSTR) & lpBuffer, 0, NULL );
- fprintf(stderr, "Tap-Win32: Error ReadFile %d - %s\n", dwError, lpBuffer);
- LocalFree( lpBuffer );
-#endif
- }
- }
-
- if(read_size > 0) {
- buffer->read_size = read_size;
- put_buffer_on_output_queue(overlapped, buffer);
- ReleaseSemaphore(overlapped->tap_semaphore, 1, NULL);
- buffer = get_buffer_from_free_list(overlapped);
- }
- }
-
- return 0;
-}
-
-static int tap_win32_read(tap_win32_overlapped_t *overlapped,
- uint8_t **pbuf, int max_size)
-{
- int size = 0;
-
- tun_buffer_t* buffer = get_buffer_from_output_queue_immediate(overlapped);
-
- if(buffer != NULL) {
- *pbuf = buffer->buffer;
- size = (int)buffer->read_size;
- if(size > max_size) {
- size = max_size;
- }
- }
-
- return size;
-}
-
-static void tap_win32_free_buffer(tap_win32_overlapped_t *overlapped,
- uint8_t *pbuf)
-{
- tun_buffer_t* buffer = (tun_buffer_t*)pbuf;
- put_buffer_on_free_list(overlapped, buffer);
-}
-
-static int tap_win32_open(tap_win32_overlapped_t **phandle,
- const char *preferred_name)
-{
- char device_path[256];
- char device_guid[0x100];
- int rc;
- HANDLE handle;
- BOOL bret;
- char name_buffer[0x100] = {0, };
- struct {
- unsigned long major;
- unsigned long minor;
- unsigned long debug;
- } version;
- DWORD version_len;
- DWORD idThread;
-
- if (preferred_name != NULL) {
- snprintf(name_buffer, sizeof(name_buffer), "%s", preferred_name);
- }
-
- rc = get_device_guid(device_guid, sizeof(device_guid), name_buffer, sizeof(name_buffer));
- if (rc)
- return -1;
-
- snprintf (device_path, sizeof(device_path), "%s%s%s",
- USERMODEDEVICEDIR,
- device_guid,
- TAPSUFFIX);
-
- handle = CreateFile (
- device_path,
- GENERIC_READ | GENERIC_WRITE,
- 0,
- 0,
- OPEN_EXISTING,
- FILE_ATTRIBUTE_SYSTEM | FILE_FLAG_OVERLAPPED,
- 0 );
-
- if (handle == INVALID_HANDLE_VALUE) {
- return -1;
- }
-
- bret = DeviceIoControl(handle, TAP_IOCTL_GET_VERSION,
- &version, sizeof (version),
- &version, sizeof (version), &version_len, NULL);
-
- if (bret == FALSE) {
- CloseHandle(handle);
- return -1;
- }
-
- if (!tap_win32_set_status(handle, TRUE)) {
- return -1;
- }
-
- tap_win32_overlapped_init(&tap_overlapped, handle);
-
- *phandle = &tap_overlapped;
-
- CreateThread(NULL, 0, tap_win32_thread_entry,
- (LPVOID)&tap_overlapped, 0, &idThread);
- return 0;
-}
-
-/********************************************/
-
- typedef struct TAPState {
- NetClientState nc;
- tap_win32_overlapped_t *handle;
- } TAPState;
-
-static void tap_cleanup(NetClientState *nc)
-{
- TAPState *s = DO_UPCAST(TAPState, nc, nc);
-
- qemu_del_wait_object(s->handle->tap_semaphore, NULL, NULL);
-
- /* FIXME: need to kill thread and close file handle:
- tap_win32_close(s);
- */
-}
-
-static ssize_t tap_receive(NetClientState *nc, const uint8_t *buf, size_t size)
-{
- TAPState *s = DO_UPCAST(TAPState, nc, nc);
-
- return tap_win32_write(s->handle, buf, size);
-}
-
-static void tap_win32_send(void *opaque)
-{
- TAPState *s = opaque;
- uint8_t *buf;
- int max_size = 4096;
- int size;
-
- size = tap_win32_read(s->handle, &buf, max_size);
- if (size > 0) {
- qemu_send_packet(&s->nc, buf, size);
- tap_win32_free_buffer(s->handle, buf);
- }
-}
-
-static bool tap_has_ufo(NetClientState *nc)
-{
- return false;
-}
-
-static bool tap_has_vnet_hdr(NetClientState *nc)
-{
- return false;
-}
-
-int tap_probe_vnet_hdr_len(int fd, int len)
-{
- return 0;
-}
-
-void tap_fd_set_vnet_hdr_len(int fd, int len)
-{
-}
-
-int tap_fd_set_vnet_le(int fd, int is_le)
-{
- return -EINVAL;
-}
-
-int tap_fd_set_vnet_be(int fd, int is_be)
-{
- return -EINVAL;
-}
-
-static void tap_using_vnet_hdr(NetClientState *nc, bool using_vnet_hdr)
-{
-}
-
-static void tap_set_offload(NetClientState *nc, int csum, int tso4,
- int tso6, int ecn, int ufo)
-{
-}
-
-struct vhost_net *tap_get_vhost_net(NetClientState *nc)
-{
- return NULL;
-}
-
-static bool tap_has_vnet_hdr_len(NetClientState *nc, int len)
-{
- return false;
-}
-
-static void tap_set_vnet_hdr_len(NetClientState *nc, int len)
-{
- abort();
-}
-
-static NetClientInfo net_tap_win32_info = {
- .type = NET_CLIENT_OPTIONS_KIND_TAP,
- .size = sizeof(TAPState),
- .receive = tap_receive,
- .cleanup = tap_cleanup,
- .has_ufo = tap_has_ufo,
- .has_vnet_hdr = tap_has_vnet_hdr,
- .has_vnet_hdr_len = tap_has_vnet_hdr_len,
- .using_vnet_hdr = tap_using_vnet_hdr,
- .set_offload = tap_set_offload,
- .set_vnet_hdr_len = tap_set_vnet_hdr_len,
-};
-
-static int tap_win32_init(NetClientState *peer, const char *model,
- const char *name, const char *ifname)
-{
- NetClientState *nc;
- TAPState *s;
- tap_win32_overlapped_t *handle;
-
- if (tap_win32_open(&handle, ifname) < 0) {
- printf("tap: Could not open '%s'\n", ifname);
- return -1;
- }
-
- nc = qemu_new_net_client(&net_tap_win32_info, peer, model, name);
-
- s = DO_UPCAST(TAPState, nc, nc);
-
- snprintf(s->nc.info_str, sizeof(s->nc.info_str),
- "tap: ifname=%s", ifname);
-
- s->handle = handle;
-
- qemu_add_wait_object(s->handle->tap_semaphore, tap_win32_send, s);
-
- return 0;
-}
-
-int net_init_tap(const NetClientOptions *opts, const char *name,
- NetClientState *peer, Error **errp)
-{
- /* FIXME error_setg(errp, ...) on failure */
- const NetdevTapOptions *tap;
-
- assert(opts->type == NET_CLIENT_OPTIONS_KIND_TAP);
- tap = opts->u.tap.data;
-
- if (!tap->has_ifname) {
- error_report("tap: no interface name");
- return -1;
- }
-
- if (tap_win32_init(peer, "tap", name, tap->ifname) == -1) {
- return -1;
- }
-
- return 0;
-}
-
-int tap_enable(NetClientState *nc)
-{
- abort();
-}
-
-int tap_disable(NetClientState *nc)
-{
- abort();
-}