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qemu-e2k/qga/commands-win32.c
Tomáš Golembiovský 2e4211cee4 qga: add command guest-get-devices for reporting VirtIO devices 
Add command for reporting devices on Windows guest. The intent is not so
much to report the devices but more importantly the driver (and its
version) that is assigned to the device. This gives caller the
information whether VirtIO drivers are installed and/or whether
inadequate driver is used on a device (e.g. QXL device with base VGA
driver).

Example:
[
    {
      "driver-date": "2019-08-12",
      "driver-name": "Red Hat VirtIO SCSI controller",
      "driver-version": "100.80.104.17300",
      "address": {
        "type": "pci",
        "data": {
          "device-id": 4162,
          "vendor-id": 6900
        }
      }
    },
    ...
]

Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
*remove redundant glib autoptr declaration for GuestDeviceInfo
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2020-09-12 20:37:48 -05:00

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/*
* QEMU Guest Agent win32-specific command implementations
*
* Copyright IBM Corp. 2012
*
* Authors:
* Michael Roth <mdroth@linux.vnet.ibm.com>
* Gal Hammer <ghammer@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include <wtypes.h>
#include <powrprof.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <iptypes.h>
#include <iphlpapi.h>
#ifdef CONFIG_QGA_NTDDSCSI
#include <winioctl.h>
#include <ntddscsi.h>
#endif
#include <setupapi.h>
#include <cfgmgr32.h>
#include <initguid.h>
#include <devpropdef.h>
#include <lm.h>
#include <wtsapi32.h>
#include <wininet.h>
#include "guest-agent-core.h"
#include "vss-win32.h"
#include "qga-qapi-commands.h"
#include "qapi/error.h"
#include "qapi/qmp/qerror.h"
#include "qemu/queue.h"
#include "qemu/host-utils.h"
#include "qemu/base64.h"
#include "commands-common.h"
/*
* The following should be in devpkey.h, but it isn't. The key names were
* prefixed to avoid (future) name clashes. Once the definitions get into
* mingw the following lines can be removed.
*/
DEFINE_DEVPROPKEY(qga_DEVPKEY_NAME, 0xb725f130, 0x47ef, 0x101a, 0xa5,
0xf1, 0x02, 0x60, 0x8c, 0x9e, 0xeb, 0xac, 10);
/* DEVPROP_TYPE_STRING */
DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_HardwareIds, 0xa45c254e, 0xdf1c,
0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 3);
/* DEVPROP_TYPE_STRING_LIST */
DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverDate, 0xa8b865dd, 0x2e3d,
0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 2);
/* DEVPROP_TYPE_FILETIME */
DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverVersion, 0xa8b865dd, 0x2e3d,
0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 3);
/* DEVPROP_TYPE_STRING */
/* The following shoud be in cfgmgr32.h, but it isn't */
#ifndef CM_Get_DevNode_Property
CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW(
DEVINST dnDevInst,
CONST DEVPROPKEY * PropertyKey,
DEVPROPTYPE * PropertyType,
PBYTE PropertyBuffer,
PULONG PropertyBufferSize,
ULONG ulFlags
);
#define CM_Get_DevNode_Property CM_Get_DevNode_PropertyW
#endif
#ifndef SHTDN_REASON_FLAG_PLANNED
#define SHTDN_REASON_FLAG_PLANNED 0x80000000
#endif
/* multiple of 100 nanoseconds elapsed between windows baseline
* (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */
#define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \
(365 * (1970 - 1601) + \
(1970 - 1601) / 4 - 3))
#define INVALID_SET_FILE_POINTER ((DWORD)-1)
struct GuestFileHandle {
int64_t id;
HANDLE fh;
QTAILQ_ENTRY(GuestFileHandle) next;
};
static struct {
QTAILQ_HEAD(, GuestFileHandle) filehandles;
} guest_file_state = {
.filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles),
};
#define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA)
typedef struct OpenFlags {
const char *forms;
DWORD desired_access;
DWORD creation_disposition;
} OpenFlags;
static OpenFlags guest_file_open_modes[] = {
{"r", GENERIC_READ, OPEN_EXISTING},
{"rb", GENERIC_READ, OPEN_EXISTING},
{"w", GENERIC_WRITE, CREATE_ALWAYS},
{"wb", GENERIC_WRITE, CREATE_ALWAYS},
{"a", FILE_GENERIC_APPEND, OPEN_ALWAYS },
{"r+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
{"rb+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
{"r+b", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
{"w+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
{"wb+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
{"w+b", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
{"a+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS },
{"ab+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS },
{"a+b", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS }
};
#define debug_error(msg) do { \
char *suffix = g_win32_error_message(GetLastError()); \
g_debug("%s: %s", (msg), suffix); \
g_free(suffix); \
} while (0)
static OpenFlags *find_open_flag(const char *mode_str)
{
int mode;
Error **errp = NULL;
for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) {
OpenFlags *flags = guest_file_open_modes + mode;
if (strcmp(flags->forms, mode_str) == 0) {
return flags;
}
}
error_setg(errp, "invalid file open mode '%s'", mode_str);
return NULL;
}
static int64_t guest_file_handle_add(HANDLE fh, Error **errp)
{
GuestFileHandle *gfh;
int64_t handle;
handle = ga_get_fd_handle(ga_state, errp);
if (handle < 0) {
return -1;
}
gfh = g_new0(GuestFileHandle, 1);
gfh->id = handle;
gfh->fh = fh;
QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next);
return handle;
}
GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp)
{
GuestFileHandle *gfh;
QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) {
if (gfh->id == id) {
return gfh;
}
}
error_setg(errp, "handle '%" PRId64 "' has not been found", id);
return NULL;
}
static void handle_set_nonblocking(HANDLE fh)
{
DWORD file_type, pipe_state;
file_type = GetFileType(fh);
if (file_type != FILE_TYPE_PIPE) {
return;
}
/* If file_type == FILE_TYPE_PIPE, according to MSDN
* the specified file is socket or named pipe */
if (!GetNamedPipeHandleState(fh, &pipe_state, NULL,
NULL, NULL, NULL, 0)) {
return;
}
/* The fd is named pipe fd */
if (pipe_state & PIPE_NOWAIT) {
return;
}
pipe_state |= PIPE_NOWAIT;
SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL);
}
int64_t qmp_guest_file_open(const char *path, bool has_mode,
const char *mode, Error **errp)
{
int64_t fd = -1;
HANDLE fh;
HANDLE templ_file = NULL;
DWORD share_mode = FILE_SHARE_READ;
DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL;
LPSECURITY_ATTRIBUTES sa_attr = NULL;
OpenFlags *guest_flags;
GError *gerr = NULL;
wchar_t *w_path = NULL;
if (!has_mode) {
mode = "r";
}
slog("guest-file-open called, filepath: %s, mode: %s", path, mode);
guest_flags = find_open_flag(mode);
if (guest_flags == NULL) {
error_setg(errp, "invalid file open mode");
goto done;
}
w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr);
if (!w_path) {
goto done;
}
fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr,
guest_flags->creation_disposition, flags_and_attr,
templ_file);
if (fh == INVALID_HANDLE_VALUE) {
error_setg_win32(errp, GetLastError(), "failed to open file '%s'",
path);
goto done;
}
/* set fd non-blocking to avoid common use cases (like reading from a
* named pipe) from hanging the agent
*/
handle_set_nonblocking(fh);
fd = guest_file_handle_add(fh, errp);
if (fd < 0) {
CloseHandle(fh);
error_setg(errp, "failed to add handle to qmp handle table");
goto done;
}
slog("guest-file-open, handle: % " PRId64, fd);
done:
if (gerr) {
error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
g_error_free(gerr);
}
g_free(w_path);
return fd;
}
void qmp_guest_file_close(int64_t handle, Error **errp)
{
bool ret;
GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
slog("guest-file-close called, handle: %" PRId64, handle);
if (gfh == NULL) {
return;
}
ret = CloseHandle(gfh->fh);
if (!ret) {
error_setg_win32(errp, GetLastError(), "failed close handle");
return;
}
QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next);
g_free(gfh);
}
static void acquire_privilege(const char *name, Error **errp)
{
HANDLE token = NULL;
TOKEN_PRIVILEGES priv;
Error *local_err = NULL;
if (OpenProcessToken(GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &token))
{
if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
"no luid for requested privilege");
goto out;
}
priv.PrivilegeCount = 1;
priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
"unable to acquire requested privilege");
goto out;
}
} else {
error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
"failed to open privilege token");
}
out:
if (token) {
CloseHandle(token);
}
error_propagate(errp, local_err);
}
static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
Error **errp)
{
HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
if (!thread) {
error_setg(errp, QERR_QGA_COMMAND_FAILED,
"failed to dispatch asynchronous command");
}
}
void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
{
Error *local_err = NULL;
UINT shutdown_flag = EWX_FORCE;
slog("guest-shutdown called, mode: %s", mode);
if (!has_mode || strcmp(mode, "powerdown") == 0) {
shutdown_flag |= EWX_POWEROFF;
} else if (strcmp(mode, "halt") == 0) {
shutdown_flag |= EWX_SHUTDOWN;
} else if (strcmp(mode, "reboot") == 0) {
shutdown_flag |= EWX_REBOOT;
} else {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
"halt|powerdown|reboot");
return;
}
/* Request a shutdown privilege, but try to shut down the system
anyway. */
acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
g_autofree gchar *emsg = g_win32_error_message(GetLastError());
slog("guest-shutdown failed: %s", emsg);
error_setg_win32(errp, GetLastError(), "guest-shutdown failed");
}
}
GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh,
int64_t count, Error **errp)
{
GuestFileRead *read_data = NULL;
guchar *buf;
HANDLE fh = gfh->fh;
bool is_ok;
DWORD read_count;
buf = g_malloc0(count + 1);
is_ok = ReadFile(fh, buf, count, &read_count, NULL);
if (!is_ok) {
error_setg_win32(errp, GetLastError(), "failed to read file");
} else {
buf[read_count] = 0;
read_data = g_new0(GuestFileRead, 1);
read_data->count = (size_t)read_count;
read_data->eof = read_count == 0;
if (read_count != 0) {
read_data->buf_b64 = g_base64_encode(buf, read_count);
}
}
g_free(buf);
return read_data;
}
GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
bool has_count, int64_t count,
Error **errp)
{
GuestFileWrite *write_data = NULL;
guchar *buf;
gsize buf_len;
bool is_ok;
DWORD write_count;
GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
HANDLE fh;
if (!gfh) {
return NULL;
}
fh = gfh->fh;
buf = qbase64_decode(buf_b64, -1, &buf_len, errp);
if (!buf) {
return NULL;
}
if (!has_count) {
count = buf_len;
} else if (count < 0 || count > buf_len) {
error_setg(errp, "value '%" PRId64
"' is invalid for argument count", count);
goto done;
}
is_ok = WriteFile(fh, buf, count, &write_count, NULL);
if (!is_ok) {
error_setg_win32(errp, GetLastError(), "failed to write to file");
slog("guest-file-write-failed, handle: %" PRId64, handle);
} else {
write_data = g_new0(GuestFileWrite, 1);
write_data->count = (size_t) write_count;
}
done:
g_free(buf);
return write_data;
}
GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
GuestFileWhence *whence_code,
Error **errp)
{
GuestFileHandle *gfh;
GuestFileSeek *seek_data;
HANDLE fh;
LARGE_INTEGER new_pos, off_pos;
off_pos.QuadPart = offset;
BOOL res;
int whence;
Error *err = NULL;
gfh = guest_file_handle_find(handle, errp);
if (!gfh) {
return NULL;
}
/* We stupidly exposed 'whence':'int' in our qapi */
whence = ga_parse_whence(whence_code, &err);
if (err) {
error_propagate(errp, err);
return NULL;
}
fh = gfh->fh;
res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
if (!res) {
error_setg_win32(errp, GetLastError(), "failed to seek file");
return NULL;
}
seek_data = g_new0(GuestFileSeek, 1);
seek_data->position = new_pos.QuadPart;
return seek_data;
}
void qmp_guest_file_flush(int64_t handle, Error **errp)
{
HANDLE fh;
GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
if (!gfh) {
return;
}
fh = gfh->fh;
if (!FlushFileBuffers(fh)) {
error_setg_win32(errp, GetLastError(), "failed to flush file");
}
}
#ifdef CONFIG_QGA_NTDDSCSI
static GuestDiskBusType win2qemu[] = {
[BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
[BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
[BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
[BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
[BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
[BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
[BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
[BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
[BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
[BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
[BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
[BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
[BusTypeSd] = GUEST_DISK_BUS_TYPE_SD,
[BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
#if (_WIN32_WINNT >= 0x0601)
[BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
[BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
#endif
};
static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
{
if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) {
return GUEST_DISK_BUS_TYPE_UNKNOWN;
}
return win2qemu[(int)bus];
}
DEFINE_GUID(GUID_DEVINTERFACE_DISK,
0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2,
0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
DEFINE_GUID(GUID_DEVINTERFACE_STORAGEPORT,
0x2accfe60L, 0xc130, 0x11d2, 0xb0, 0x82,
0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
static GuestPCIAddress *get_pci_info(int number, Error **errp)
{
HDEVINFO dev_info;
SP_DEVINFO_DATA dev_info_data;
SP_DEVICE_INTERFACE_DATA dev_iface_data;
HANDLE dev_file;
int i;
GuestPCIAddress *pci = NULL;
bool partial_pci = false;
pci = g_malloc0(sizeof(*pci));
pci->domain = -1;
pci->slot = -1;
pci->function = -1;
pci->bus = -1;
dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
if (dev_info == INVALID_HANDLE_VALUE) {
error_setg_win32(errp, GetLastError(), "failed to get devices tree");
goto out;
}
g_debug("enumerating devices");
dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL;
STORAGE_DEVICE_NUMBER sdn;
char *parent_dev_id = NULL;
HDEVINFO parent_dev_info;
SP_DEVINFO_DATA parent_dev_info_data;
DWORD j;
DWORD size = 0;
g_debug("getting device path");
if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data,
&GUID_DEVINTERFACE_DISK, 0,
&dev_iface_data)) {
while (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
pdev_iface_detail_data,
size, &size,
&dev_info_data)) {
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
pdev_iface_detail_data = g_malloc(size);
pdev_iface_detail_data->cbSize =
sizeof(*pdev_iface_detail_data);
} else {
error_setg_win32(errp, GetLastError(),
"failed to get device interfaces");
goto free_dev_info;
}
}
dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
FILE_SHARE_READ, NULL, OPEN_EXISTING, 0,
NULL);
g_free(pdev_iface_detail_data);
if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
CloseHandle(dev_file);
error_setg_win32(errp, GetLastError(),
"failed to get device slot number");
goto free_dev_info;
}
CloseHandle(dev_file);
if (sdn.DeviceNumber != number) {
continue;
}
} else {
error_setg_win32(errp, GetLastError(),
"failed to get device interfaces");
goto free_dev_info;
}
g_debug("found device slot %d. Getting storage controller", number);
{
CONFIGRET cr;
DEVINST dev_inst, parent_dev_inst;
ULONG dev_id_size = 0;
size = 0;
while (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
parent_dev_id, size, &size)) {
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
parent_dev_id = g_malloc(size);
} else {
error_setg_win32(errp, GetLastError(),
"failed to get device instance ID");
goto out;
}
}
/*
* CM API used here as opposed to
* SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...)
* which exports are only available in mingw-w64 6+
*/
cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0);
if (cr != CR_SUCCESS) {
g_error("CM_Locate_DevInst failed with code %lx", cr);
error_setg_win32(errp, GetLastError(),
"failed to get device instance");
goto out;
}
cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0);
if (cr != CR_SUCCESS) {
g_error("CM_Get_Parent failed with code %lx", cr);
error_setg_win32(errp, GetLastError(),
"failed to get parent device instance");
goto out;
}
cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0);
if (cr != CR_SUCCESS) {
g_error("CM_Get_Device_ID_Size failed with code %lx", cr);
error_setg_win32(errp, GetLastError(),
"failed to get parent device ID length");
goto out;
}
++dev_id_size;
if (dev_id_size > size) {
g_free(parent_dev_id);
parent_dev_id = g_malloc(dev_id_size);
}
cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size,
0);
if (cr != CR_SUCCESS) {
g_error("CM_Get_Device_ID failed with code %lx", cr);
error_setg_win32(errp, GetLastError(),
"failed to get parent device ID");
goto out;
}
}
g_debug("querying storage controller %s for PCI information",
parent_dev_id);
parent_dev_info =
SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id,
NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
g_free(parent_dev_id);
if (parent_dev_info == INVALID_HANDLE_VALUE) {
error_setg_win32(errp, GetLastError(),
"failed to get parent device");
goto out;
}
parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) {
error_setg_win32(errp, GetLastError(),
"failed to get parent device data");
goto out;
}
for (j = 0;
SetupDiEnumDeviceInfo(parent_dev_info, j, &parent_dev_info_data);
j++) {
DWORD addr, bus, ui_slot, type;
int func, slot;
/*
* There is no need to allocate buffer in the next functions. The
* size is known and ULONG according to
* https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
*/
if (!SetupDiGetDeviceRegistryProperty(
parent_dev_info, &parent_dev_info_data, SPDRP_BUSNUMBER,
&type, (PBYTE)&bus, size, NULL)) {
debug_error("failed to get PCI bus");
bus = -1;
partial_pci = true;
}
/*
* The function retrieves the device's address. This value will be
* transformed into device function and number
*/
if (!SetupDiGetDeviceRegistryProperty(
parent_dev_info, &parent_dev_info_data, SPDRP_ADDRESS,
&type, (PBYTE)&addr, size, NULL)) {
debug_error("failed to get PCI address");
addr = -1;
partial_pci = true;
}
/*
* This call returns UINumber of DEVICE_CAPABILITIES structure.
* This number is typically a user-perceived slot number.
*/
if (!SetupDiGetDeviceRegistryProperty(
parent_dev_info, &parent_dev_info_data, SPDRP_UI_NUMBER,
&type, (PBYTE)&ui_slot, size, NULL)) {
debug_error("failed to get PCI slot");
ui_slot = -1;
partial_pci = true;
}
/*
* SetupApi gives us the same information as driver with
* IoGetDeviceProperty. According to Microsoft:
*
* FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF)
* DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF)
* SPDRP_ADDRESS is propertyAddress, so we do the same.
*
* https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya
*/
if (partial_pci) {
pci->domain = -1;
pci->slot = -1;
pci->function = -1;
pci->bus = -1;
continue;
} else {
func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF;
slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF;
if ((int)ui_slot != slot) {
g_debug("mismatch with reported slot values: %d vs %d",
(int)ui_slot, slot);
}
pci->domain = 0;
pci->slot = (int)ui_slot;
pci->function = func;
pci->bus = (int)bus;
break;
}
}
SetupDiDestroyDeviceInfoList(parent_dev_info);
break;
}
free_dev_info:
SetupDiDestroyDeviceInfoList(dev_info);
out:
return pci;
}
static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk,
Error **errp)
{
STORAGE_PROPERTY_QUERY query;
STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
DWORD received;
ULONG size = sizeof(buf);
dev_desc = &buf;
query.PropertyId = StorageDeviceProperty;
query.QueryType = PropertyStandardQuery;
if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
size, &received, NULL)) {
error_setg_win32(errp, GetLastError(), "failed to get bus type");
return;
}
disk->bus_type = find_bus_type(dev_desc->BusType);
g_debug("bus type %d", disk->bus_type);
/* Query once more. Now with long enough buffer. */
size = dev_desc->Size;
dev_desc = g_malloc0(size);
if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
size, &received, NULL)) {
error_setg_win32(errp, GetLastError(), "failed to get serial number");
g_debug("failed to get serial number");
goto out_free;
}
if (dev_desc->SerialNumberOffset > 0) {
const char *serial;
size_t len;
if (dev_desc->SerialNumberOffset >= received) {
error_setg(errp, "failed to get serial number: offset outside the buffer");
g_debug("serial number offset outside the buffer");
goto out_free;
}
serial = (char *)dev_desc + dev_desc->SerialNumberOffset;
len = received - dev_desc->SerialNumberOffset;
g_debug("serial number \"%s\"", serial);
if (*serial != 0) {
disk->serial = g_strndup(serial, len);
disk->has_serial = true;
}
}
out_free:
g_free(dev_desc);
return;
}
static void get_single_disk_info(int disk_number,
GuestDiskAddress *disk, Error **errp)
{
SCSI_ADDRESS addr, *scsi_ad;
DWORD len;
HANDLE disk_h;
Error *local_err = NULL;
scsi_ad = &addr;
g_debug("getting disk info for: %s", disk->dev);
disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
0, NULL);
if (disk_h == INVALID_HANDLE_VALUE) {
error_setg_win32(errp, GetLastError(), "failed to open disk");
return;
}
get_disk_properties(disk_h, disk, &local_err);
if (local_err) {
error_propagate(errp, local_err);
goto err_close;
}
g_debug("bus type %d", disk->bus_type);
/* always set pci_controller as required by schema. get_pci_info() should
* report -1 values for non-PCI buses rather than fail. fail the command
* if that doesn't hold since that suggests some other unexpected
* breakage
*/
disk->pci_controller = get_pci_info(disk_number, &local_err);
if (local_err) {
error_propagate(errp, local_err);
goto err_close;
}
if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI
|| disk->bus_type == GUEST_DISK_BUS_TYPE_IDE
|| disk->bus_type == GUEST_DISK_BUS_TYPE_RAID
/* This bus type is not supported before Windows Server 2003 SP1 */
|| disk->bus_type == GUEST_DISK_BUS_TYPE_SAS
) {
/* We are able to use the same ioctls for different bus types
* according to Microsoft docs
* https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
g_debug("getting SCSI info");
if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
sizeof(SCSI_ADDRESS), &len, NULL)) {
disk->unit = addr.Lun;
disk->target = addr.TargetId;
disk->bus = addr.PathId;
}
/* We do not set error in this case, because we still have enough
* information about volume. */
}
err_close:
CloseHandle(disk_h);
return;
}
/* VSS provider works with volumes, thus there is no difference if
* the volume consist of spanned disks. Info about the first disk in the
* volume is returned for the spanned disk group (LVM) */
static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
{
Error *local_err = NULL;
GuestDiskAddressList *list = NULL, *cur_item = NULL;
GuestDiskAddress *disk = NULL;
int i;
HANDLE vol_h;
DWORD size;
PVOLUME_DISK_EXTENTS extents = NULL;
/* strip final backslash */
char *name = g_strdup(guid);
if (g_str_has_suffix(name, "\\")) {
name[strlen(name) - 1] = 0;
}
g_debug("opening %s", name);
vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
0, NULL);
if (vol_h == INVALID_HANDLE_VALUE) {
error_setg_win32(errp, GetLastError(), "failed to open volume");
goto out;
}
/* Get list of extents */
g_debug("getting disk extents");
size = sizeof(VOLUME_DISK_EXTENTS);
extents = g_malloc0(size);
if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
0, extents, size, &size, NULL)) {
DWORD last_err = GetLastError();
if (last_err == ERROR_MORE_DATA) {
/* Try once more with big enough buffer */
g_free(extents);
extents = g_malloc0(size);
if (!DeviceIoControl(
vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
0, extents, size, NULL, NULL)) {
error_setg_win32(errp, GetLastError(),
"failed to get disk extents");
goto out;
}
} else if (last_err == ERROR_INVALID_FUNCTION) {
/* Possibly CD-ROM or a shared drive. Try to pass the volume */
g_debug("volume not on disk");
disk = g_malloc0(sizeof(GuestDiskAddress));
disk->has_dev = true;
disk->dev = g_strdup(name);
get_single_disk_info(0xffffffff, disk, &local_err);
if (local_err) {
g_debug("failed to get disk info, ignoring error: %s",
error_get_pretty(local_err));
error_free(local_err);
goto out;
}
list = g_malloc0(sizeof(*list));
list->value = disk;
disk = NULL;
list->next = NULL;
goto out;
} else {
error_setg_win32(errp, GetLastError(),
"failed to get disk extents");
goto out;
}
}
g_debug("Number of extents: %lu", extents->NumberOfDiskExtents);
/* Go through each extent */
for (i = 0; i < extents->NumberOfDiskExtents; i++) {
disk = g_malloc0(sizeof(GuestDiskAddress));
/* Disk numbers directly correspond to numbers used in UNCs
*
* See documentation for DISK_EXTENT:
* https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent
*
* See also Naming Files, Paths and Namespaces:
* https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces
*/
disk->has_dev = true;
disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
extents->Extents[i].DiskNumber);
get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err);
if (local_err) {
error_propagate(errp, local_err);
goto out;
}
cur_item = g_malloc0(sizeof(*list));
cur_item->value = disk;
disk = NULL;
cur_item->next = list;
list = cur_item;
}
out:
if (vol_h != INVALID_HANDLE_VALUE) {
CloseHandle(vol_h);
}
qapi_free_GuestDiskAddress(disk);
g_free(extents);
g_free(name);
return list;
}
#else
static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
{
return NULL;
}
#endif /* CONFIG_QGA_NTDDSCSI */
static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
{
DWORD info_size;
char mnt, *mnt_point;
wchar_t wfs_name[32];
char fs_name[32];
wchar_t vol_info[MAX_PATH + 1];
size_t len;
uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes;
GuestFilesystemInfo *fs = NULL;
HANDLE hLocalDiskHandle = NULL;
GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
if (GetLastError() != ERROR_MORE_DATA) {
error_setg_win32(errp, GetLastError(), "failed to get volume name");
return NULL;
}
mnt_point = g_malloc(info_size + 1);
if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
&info_size)) {
error_setg_win32(errp, GetLastError(), "failed to get volume name");
goto free;
}
hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL |
FILE_FLAG_BACKUP_SEMANTICS, NULL);
if (INVALID_HANDLE_VALUE == hLocalDiskHandle) {
error_setg_win32(errp, GetLastError(), "failed to get handle for volume");
goto free;
}
len = strlen(mnt_point);
mnt_point[len] = '\\';
mnt_point[len+1] = 0;
if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info,
sizeof(vol_info), NULL, NULL, NULL,
(LPWSTR) & wfs_name, sizeof(wfs_name))) {
if (GetLastError() != ERROR_NOT_READY) {
error_setg_win32(errp, GetLastError(), "failed to get volume info");
}
goto free;
}
fs = g_malloc(sizeof(*fs));
fs->name = g_strdup(guid);
fs->has_total_bytes = false;
fs->has_used_bytes = false;
if (len == 0) {
fs->mountpoint = g_strdup("System Reserved");
} else {
fs->mountpoint = g_strndup(mnt_point, len);
if (GetDiskFreeSpaceEx(fs->mountpoint,
(PULARGE_INTEGER) & i64FreeBytesToCaller,
(PULARGE_INTEGER) & i64TotalBytes,
(PULARGE_INTEGER) & i64FreeBytes)) {
fs->used_bytes = i64TotalBytes - i64FreeBytes;
fs->total_bytes = i64TotalBytes;
fs->has_total_bytes = true;
fs->has_used_bytes = true;
}
}
wcstombs(fs_name, wfs_name, sizeof(wfs_name));
fs->type = g_strdup(fs_name);
fs->disk = build_guest_disk_info(guid, errp);
free:
CloseHandle(hLocalDiskHandle);
g_free(mnt_point);
return fs;
}
GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
{
HANDLE vol_h;
GuestFilesystemInfoList *new, *ret = NULL;
char guid[256];
vol_h = FindFirstVolume(guid, sizeof(guid));
if (vol_h == INVALID_HANDLE_VALUE) {
error_setg_win32(errp, GetLastError(), "failed to find any volume");
return NULL;
}
do {
Error *local_err = NULL;
GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err);
if (local_err) {
g_debug("failed to get filesystem info, ignoring error: %s",
error_get_pretty(local_err));
error_free(local_err);
continue;
}
new = g_malloc(sizeof(*ret));
new->value = info;
new->next = ret;
ret = new;
} while (FindNextVolume(vol_h, guid, sizeof(guid)));
if (GetLastError() != ERROR_NO_MORE_FILES) {
error_setg_win32(errp, GetLastError(), "failed to find next volume");
}
FindVolumeClose(vol_h);
return ret;
}
/*
* Return status of freeze/thaw
*/
GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
{
if (!vss_initialized()) {
error_setg(errp, QERR_UNSUPPORTED);
return 0;
}
if (ga_is_frozen(ga_state)) {
return GUEST_FSFREEZE_STATUS_FROZEN;
}
return GUEST_FSFREEZE_STATUS_THAWED;
}
/*
* Freeze local file systems using Volume Shadow-copy Service.
* The frozen state is limited for up to 10 seconds by VSS.
*/
int64_t qmp_guest_fsfreeze_freeze(Error **errp)
{
return qmp_guest_fsfreeze_freeze_list(false, NULL, errp);
}
int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
strList *mountpoints,
Error **errp)
{
int i;
Error *local_err = NULL;
if (!vss_initialized()) {
error_setg(errp, QERR_UNSUPPORTED);
return 0;
}
slog("guest-fsfreeze called");
/* cannot risk guest agent blocking itself on a write in this state */
ga_set_frozen(ga_state);
qga_vss_fsfreeze(&i, true, mountpoints, &local_err);
if (local_err) {
error_propagate(errp, local_err);
goto error;
}
return i;
error:
local_err = NULL;
qmp_guest_fsfreeze_thaw(&local_err);
if (local_err) {
g_debug("cleanup thaw: %s", error_get_pretty(local_err));
error_free(local_err);
}
return 0;
}
/*
* Thaw local file systems using Volume Shadow-copy Service.
*/
int64_t qmp_guest_fsfreeze_thaw(Error **errp)
{
int i;
if (!vss_initialized()) {
error_setg(errp, QERR_UNSUPPORTED);
return 0;
}
qga_vss_fsfreeze(&i, false, NULL, errp);
ga_unset_frozen(ga_state);
return i;
}
static void guest_fsfreeze_cleanup(void)
{
Error *err = NULL;
if (!vss_initialized()) {
return;
}
if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
qmp_guest_fsfreeze_thaw(&err);
if (err) {
slog("failed to clean up frozen filesystems: %s",
error_get_pretty(err));
error_free(err);
}
}
vss_deinit(true);
}
/*
* Walk list of mounted file systems in the guest, and discard unused
* areas.
*/
GuestFilesystemTrimResponse *
qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
{
GuestFilesystemTrimResponse *resp;
HANDLE handle;
WCHAR guid[MAX_PATH] = L"";
OSVERSIONINFO osvi;
BOOL win8_or_later;
ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&osvi);
win8_or_later = (osvi.dwMajorVersion > 6 ||
((osvi.dwMajorVersion == 6) &&
(osvi.dwMinorVersion >= 2)));
if (!win8_or_later) {
error_setg(errp, "fstrim is only supported for Win8+");
return NULL;
}
handle = FindFirstVolumeW(guid, ARRAYSIZE(guid));
if (handle == INVALID_HANDLE_VALUE) {
error_setg_win32(errp, GetLastError(), "failed to find any volume");
return NULL;
}
resp = g_new0(GuestFilesystemTrimResponse, 1);
do {
GuestFilesystemTrimResult *res;
GuestFilesystemTrimResultList *list;
PWCHAR uc_path;
DWORD char_count = 0;
char *path, *out;
GError *gerr = NULL;
gchar * argv[4];
GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count);
if (GetLastError() != ERROR_MORE_DATA) {
continue;
}
if (GetDriveTypeW(guid) != DRIVE_FIXED) {
continue;
}
uc_path = g_malloc(sizeof(WCHAR) * char_count);
if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count,
&char_count) || !*uc_path) {
/* strange, but this condition could be faced even with size == 2 */
g_free(uc_path);
continue;
}
res = g_new0(GuestFilesystemTrimResult, 1);
path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr);
g_free(uc_path);
if (!path) {
res->has_error = true;
res->error = g_strdup(gerr->message);
g_error_free(gerr);
break;
}
res->path = path;
list = g_new0(GuestFilesystemTrimResultList, 1);
list->value = res;
list->next = resp->paths;
resp->paths = list;
memset(argv, 0, sizeof(argv));
argv[0] = (gchar *)"defrag.exe";
argv[1] = (gchar *)"/L";
argv[2] = path;
if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
&out /* stdout */, NULL /* stdin */,
NULL, &gerr)) {
res->has_error = true;
res->error = g_strdup(gerr->message);
g_error_free(gerr);
} else {
/* defrag.exe is UGLY. Exit code is ALWAYS zero.
Error is reported in the output with something like
(x89000020) etc code in the stdout */
int i;
gchar **lines = g_strsplit(out, "\r\n", 0);
g_free(out);
for (i = 0; lines[i] != NULL; i++) {
if (g_strstr_len(lines[i], -1, "(0x") == NULL) {
continue;
}
res->has_error = true;
res->error = g_strdup(lines[i]);
break;
}
g_strfreev(lines);
}
} while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid)));
FindVolumeClose(handle);
return resp;
}
typedef enum {
GUEST_SUSPEND_MODE_DISK,
GUEST_SUSPEND_MODE_RAM
} GuestSuspendMode;
static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
{
SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
if (!GetPwrCapabilities(&sys_pwr_caps)) {
error_setg(errp, QERR_QGA_COMMAND_FAILED,
"failed to determine guest suspend capabilities");
return;
}
switch (mode) {
case GUEST_SUSPEND_MODE_DISK:
if (!sys_pwr_caps.SystemS4) {
error_setg(errp, QERR_QGA_COMMAND_FAILED,
"suspend-to-disk not supported by OS");
}
break;
case GUEST_SUSPEND_MODE_RAM:
if (!sys_pwr_caps.SystemS3) {
error_setg(errp, QERR_QGA_COMMAND_FAILED,
"suspend-to-ram not supported by OS");
}
break;
default:
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
"GuestSuspendMode");
}
}
static DWORD WINAPI do_suspend(LPVOID opaque)
{
GuestSuspendMode *mode = opaque;
DWORD ret = 0;
if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
g_autofree gchar *emsg = g_win32_error_message(GetLastError());
slog("failed to suspend guest: %s", emsg);
ret = -1;
}
g_free(mode);
return ret;
}
void qmp_guest_suspend_disk(Error **errp)
{
Error *local_err = NULL;
GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
*mode = GUEST_SUSPEND_MODE_DISK;
check_suspend_mode(*mode, &local_err);
if (local_err) {
goto out;
}
acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
if (local_err) {
goto out;
}
execute_async(do_suspend, mode, &local_err);
out:
if (local_err) {
error_propagate(errp, local_err);
g_free(mode);
}
}
void qmp_guest_suspend_ram(Error **errp)
{
Error *local_err = NULL;
GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
*mode = GUEST_SUSPEND_MODE_RAM;
check_suspend_mode(*mode, &local_err);
if (local_err) {
goto out;
}
acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
if (local_err) {
goto out;
}
execute_async(do_suspend, mode, &local_err);
out:
if (local_err) {
error_propagate(errp, local_err);
g_free(mode);
}
}
void qmp_guest_suspend_hybrid(Error **errp)
{
error_setg(errp, QERR_UNSUPPORTED);
}
static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
{
IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
ULONG adptr_addrs_len = 0;
DWORD ret;
/* Call the first time to get the adptr_addrs_len. */
GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
NULL, adptr_addrs, &adptr_addrs_len);
adptr_addrs = g_malloc(adptr_addrs_len);
ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
NULL, adptr_addrs, &adptr_addrs_len);
if (ret != ERROR_SUCCESS) {
error_setg_win32(errp, ret, "failed to get adapters addresses");
g_free(adptr_addrs);
adptr_addrs = NULL;
}
return adptr_addrs;
}
static char *guest_wctomb_dup(WCHAR *wstr)
{
char *str;
size_t str_size;
str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
/* add 1 to str_size for NULL terminator */
str = g_malloc(str_size + 1);
WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL);
return str;
}
static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
Error **errp)
{
char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
DWORD len;
int ret;
if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
len = sizeof(addr_str);
ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
ip_addr->Address.iSockaddrLength,
NULL,
addr_str,
&len);
if (ret != 0) {
error_setg_win32(errp, WSAGetLastError(),
"failed address presentation form conversion");
return NULL;
}
return g_strdup(addr_str);
}
return NULL;
}
static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
{
/* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
* field to obtain the prefix.
*/
return ip_addr->OnLinkPrefixLength;
}
#define INTERFACE_PATH_BUF_SZ 512
static DWORD get_interface_index(const char *guid)
{
ULONG index;
DWORD status;
wchar_t wbuf[INTERFACE_PATH_BUF_SZ];
snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid);
wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0;
status = GetAdapterIndex (wbuf, &index);
if (status != NO_ERROR) {
return (DWORD)~0;
} else {
return index;
}
}
typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row);
static int guest_get_network_stats(const char *name,
GuestNetworkInterfaceStat *stats)
{
OSVERSIONINFO os_ver;
os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
GetVersionEx(&os_ver);
if (os_ver.dwMajorVersion >= 6) {
MIB_IF_ROW2 a_mid_ifrow;
GetIfEntry2Func getifentry2_ex;
DWORD if_index = 0;
HMODULE module = GetModuleHandle("iphlpapi");
PVOID func = GetProcAddress(module, "GetIfEntry2");
if (func == NULL) {
return -1;
}
getifentry2_ex = (GetIfEntry2Func)func;
if_index = get_interface_index(name);
if (if_index == (DWORD)~0) {
return -1;
}
memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow));
a_mid_ifrow.InterfaceIndex = if_index;
if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) {
stats->rx_bytes = a_mid_ifrow.InOctets;
stats->rx_packets = a_mid_ifrow.InUcastPkts;
stats->rx_errs = a_mid_ifrow.InErrors;
stats->rx_dropped = a_mid_ifrow.InDiscards;
stats->tx_bytes = a_mid_ifrow.OutOctets;
stats->tx_packets = a_mid_ifrow.OutUcastPkts;
stats->tx_errs = a_mid_ifrow.OutErrors;
stats->tx_dropped = a_mid_ifrow.OutDiscards;
return 0;
}
}
return -1;
}
GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
{
IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
GuestNetworkInterfaceList *head = NULL, *cur_item = NULL;
GuestIpAddressList *head_addr, *cur_addr;
GuestNetworkInterfaceList *info;
GuestNetworkInterfaceStat *interface_stat = NULL;
GuestIpAddressList *address_item = NULL;
unsigned char *mac_addr;
char *addr_str;
WORD wsa_version;
WSADATA wsa_data;
int ret;
adptr_addrs = guest_get_adapters_addresses(errp);
if (adptr_addrs == NULL) {
return NULL;
}
/* Make WSA APIs available. */
wsa_version = MAKEWORD(2, 2);
ret = WSAStartup(wsa_version, &wsa_data);
if (ret != 0) {
error_setg_win32(errp, ret, "failed socket startup");
goto out;
}
for (addr = adptr_addrs; addr; addr = addr->Next) {
info = g_malloc0(sizeof(*info));
if (cur_item == NULL) {
head = cur_item = info;
} else {
cur_item->next = info;
cur_item = info;
}
info->value = g_malloc0(sizeof(*info->value));
info->value->name = guest_wctomb_dup(addr->FriendlyName);
if (addr->PhysicalAddressLength != 0) {
mac_addr = addr->PhysicalAddress;
info->value->hardware_address =
g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
(int) mac_addr[0], (int) mac_addr[1],
(int) mac_addr[2], (int) mac_addr[3],
(int) mac_addr[4], (int) mac_addr[5]);
info->value->has_hardware_address = true;
}
head_addr = NULL;
cur_addr = NULL;
for (ip_addr = addr->FirstUnicastAddress;
ip_addr;
ip_addr = ip_addr->Next) {
addr_str = guest_addr_to_str(ip_addr, errp);
if (addr_str == NULL) {
continue;
}
address_item = g_malloc0(sizeof(*address_item));
if (!cur_addr) {
head_addr = cur_addr = address_item;
} else {
cur_addr->next = address_item;
cur_addr = address_item;
}
address_item->value = g_malloc0(sizeof(*address_item->value));
address_item->value->ip_address = addr_str;
address_item->value->prefix = guest_ip_prefix(ip_addr);
if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
address_item->value->ip_address_type =
GUEST_IP_ADDRESS_TYPE_IPV4;
} else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
address_item->value->ip_address_type =
GUEST_IP_ADDRESS_TYPE_IPV6;
}
}
if (head_addr) {
info->value->has_ip_addresses = true;
info->value->ip_addresses = head_addr;
}
if (!info->value->has_statistics) {
interface_stat = g_malloc0(sizeof(*interface_stat));
if (guest_get_network_stats(addr->AdapterName,
interface_stat) == -1) {
info->value->has_statistics = false;
g_free(interface_stat);
} else {
info->value->statistics = interface_stat;
info->value->has_statistics = true;
}
}
}
WSACleanup();
out:
g_free(adptr_addrs);
return head;
}
int64_t qmp_guest_get_time(Error **errp)
{
SYSTEMTIME ts = {0};
FILETIME tf;
GetSystemTime(&ts);
if (ts.wYear < 1601 || ts.wYear > 30827) {
error_setg(errp, "Failed to get time");
return -1;
}
if (!SystemTimeToFileTime(&ts, &tf)) {
error_setg(errp, "Failed to convert system time: %d", (int)GetLastError());
return -1;
}
return ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime)
- W32_FT_OFFSET) * 100;
}
void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
{
Error *local_err = NULL;
SYSTEMTIME ts;
FILETIME tf;
LONGLONG time;
if (!has_time) {
/* Unfortunately, Windows libraries don't provide an easy way to access
* RTC yet:
*
* https://msdn.microsoft.com/en-us/library/aa908981.aspx
*
* Instead, a workaround is to use the Windows win32tm command to
* resync the time using the Windows Time service.
*/
LPVOID msg_buffer;
DWORD ret_flags;
HRESULT hr = system("w32tm /resync /nowait");
if (GetLastError() != 0) {
strerror_s((LPTSTR) & msg_buffer, 0, errno);
error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer);
} else if (hr != 0) {
if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) {
error_setg(errp, "Windows Time service not running on the "
"guest");
} else {
if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
(DWORD)hr, MAKELANGID(LANG_NEUTRAL,
SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0,
NULL)) {
error_setg(errp, "w32tm failed with error (0x%lx), couldn'"
"t retrieve error message", hr);
} else {
error_setg(errp, "w32tm failed with error (0x%lx): %s", hr,
(LPCTSTR)msg_buffer);
LocalFree(msg_buffer);
}
}
} else if (!InternetGetConnectedState(&ret_flags, 0)) {
error_setg(errp, "No internet connection on guest, sync not "
"accurate");
}
return;
}
/* Validate time passed by user. */
if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
return;
}
time = time_ns / 100 + W32_FT_OFFSET;
tf.dwLowDateTime = (DWORD) time;
tf.dwHighDateTime = (DWORD) (time >> 32);
if (!FileTimeToSystemTime(&tf, &ts)) {
error_setg(errp, "Failed to convert system time %d",
(int)GetLastError());
return;
}
acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
if (!SetSystemTime(&ts)) {
error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
return;
}
}
GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
{
PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr;
DWORD length;
GuestLogicalProcessorList *head, **link;
Error *local_err = NULL;
int64_t current;
ptr = pslpi = NULL;
length = 0;
current = 0;
head = NULL;
link = &head;
if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) &&
(GetLastError() == ERROR_INSUFFICIENT_BUFFER) &&
(length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) {
ptr = pslpi = g_malloc0(length);
if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) {
error_setg(&local_err, "Failed to get processor information: %d",
(int)GetLastError());
}
} else {
error_setg(&local_err,
"Failed to get processor information buffer length: %d",
(int)GetLastError());
}
while ((local_err == NULL) && (length > 0)) {
if (pslpi->Relationship == RelationProcessorCore) {
ULONG_PTR cpu_bits = pslpi->ProcessorMask;
while (cpu_bits > 0) {
if (!!(cpu_bits & 1)) {
GuestLogicalProcessor *vcpu;
GuestLogicalProcessorList *entry;
vcpu = g_malloc0(sizeof *vcpu);
vcpu->logical_id = current++;
vcpu->online = true;
vcpu->has_can_offline = true;
entry = g_malloc0(sizeof *entry);
entry->value = vcpu;
*link = entry;
link = &entry->next;
}
cpu_bits >>= 1;
}
}
length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
pslpi++; /* next entry */
}
g_free(ptr);
if (local_err == NULL) {
if (head != NULL) {
return head;
}
/* there's no guest with zero VCPUs */
error_setg(&local_err, "Guest reported zero VCPUs");
}
qapi_free_GuestLogicalProcessorList(head);
error_propagate(errp, local_err);
return NULL;
}
int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
{
error_setg(errp, QERR_UNSUPPORTED);
return -1;
}
static gchar *
get_net_error_message(gint error)
{
HMODULE module = NULL;
gchar *retval = NULL;
wchar_t *msg = NULL;
int flags;
size_t nchars;
flags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_FROM_SYSTEM;
if (error >= NERR_BASE && error <= MAX_NERR) {
module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
if (module != NULL) {
flags |= FORMAT_MESSAGE_FROM_HMODULE;
}
}
FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
if (msg != NULL) {
nchars = wcslen(msg);
if (nchars >= 2 &&
msg[nchars - 1] == L'\n' &&
msg[nchars - 2] == L'\r') {
msg[nchars - 2] = L'\0';
}
retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
LocalFree(msg);
}
if (module != NULL) {
FreeLibrary(module);
}
return retval;
}
void qmp_guest_set_user_password(const char *username,
const char *password,
bool crypted,
Error **errp)
{
NET_API_STATUS nas;
char *rawpasswddata = NULL;
size_t rawpasswdlen;
wchar_t *user = NULL, *wpass = NULL;
USER_INFO_1003 pi1003 = { 0, };
GError *gerr = NULL;
if (crypted) {
error_setg(errp, QERR_UNSUPPORTED);
return;
}
rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
if (!rawpasswddata) {
return;
}
rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
rawpasswddata[rawpasswdlen] = '\0';
user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr);
if (!user) {
goto done;
}
wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr);
if (!wpass) {
goto done;
}
pi1003.usri1003_password = wpass;
nas = NetUserSetInfo(NULL, user,
1003, (LPBYTE)&pi1003,
NULL);
if (nas != NERR_Success) {
gchar *msg = get_net_error_message(nas);
error_setg(errp, "failed to set password: %s", msg);
g_free(msg);
}
done:
if (gerr) {
error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
g_error_free(gerr);
}
g_free(user);
g_free(wpass);
g_free(rawpasswddata);
}
GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
{
error_setg(errp, QERR_UNSUPPORTED);
return NULL;
}
GuestMemoryBlockResponseList *
qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
{
error_setg(errp, QERR_UNSUPPORTED);
return NULL;
}
GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
{
error_setg(errp, QERR_UNSUPPORTED);
return NULL;
}
/* add unsupported commands to the blacklist */
GList *ga_command_blacklist_init(GList *blacklist)
{
const char *list_unsupported[] = {
"guest-suspend-hybrid",
"guest-set-vcpus",
"guest-get-memory-blocks", "guest-set-memory-blocks",
"guest-get-memory-block-size", "guest-get-memory-block-info",
NULL};
char **p = (char **)list_unsupported;
while (*p) {
blacklist = g_list_append(blacklist, g_strdup(*p++));
}
if (!vss_init(true)) {
g_debug("vss_init failed, vss commands are going to be disabled");
const char *list[] = {
"guest-get-fsinfo", "guest-fsfreeze-status",
"guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
p = (char **)list;
while (*p) {
blacklist = g_list_append(blacklist, g_strdup(*p++));
}
}
return blacklist;
}
/* register init/cleanup routines for stateful command groups */
void ga_command_state_init(GAState *s, GACommandState *cs)
{
if (!vss_initialized()) {
ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
}
}
/* MINGW is missing two fields: IncomingFrames & OutgoingFrames */
typedef struct _GA_WTSINFOA {
WTS_CONNECTSTATE_CLASS State;
DWORD SessionId;
DWORD IncomingBytes;
DWORD OutgoingBytes;
DWORD IncomingFrames;
DWORD OutgoingFrames;
DWORD IncomingCompressedBytes;
DWORD OutgoingCompressedBy;
CHAR WinStationName[WINSTATIONNAME_LENGTH];
CHAR Domain[DOMAIN_LENGTH];
CHAR UserName[USERNAME_LENGTH + 1];
LARGE_INTEGER ConnectTime;
LARGE_INTEGER DisconnectTime;
LARGE_INTEGER LastInputTime;
LARGE_INTEGER LogonTime;
LARGE_INTEGER CurrentTime;
} GA_WTSINFOA;
GuestUserList *qmp_guest_get_users(Error **errp)
{
#define QGA_NANOSECONDS 10000000
GHashTable *cache = NULL;
GuestUserList *head = NULL, *cur_item = NULL;
DWORD buffer_size = 0, count = 0, i = 0;
GA_WTSINFOA *info = NULL;
WTS_SESSION_INFOA *entries = NULL;
GuestUserList *item = NULL;
GuestUser *user = NULL;
gpointer value = NULL;
INT64 login = 0;
double login_time = 0;
cache = g_hash_table_new(g_str_hash, g_str_equal);
if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) {
for (i = 0; i < count; ++i) {
buffer_size = 0;
info = NULL;
if (WTSQuerySessionInformationA(
NULL,
entries[i].SessionId,
WTSSessionInfo,
(LPSTR *)&info,
&buffer_size
)) {
if (strlen(info->UserName) == 0) {
WTSFreeMemory(info);
continue;
}
login = info->LogonTime.QuadPart;
login -= W32_FT_OFFSET;
login_time = ((double)login) / QGA_NANOSECONDS;
if (g_hash_table_contains(cache, info->UserName)) {
value = g_hash_table_lookup(cache, info->UserName);
user = (GuestUser *)value;
if (user->login_time > login_time) {
user->login_time = login_time;
}
} else {
item = g_new0(GuestUserList, 1);
item->value = g_new0(GuestUser, 1);
item->value->user = g_strdup(info->UserName);
item->value->domain = g_strdup(info->Domain);
item->value->has_domain = true;
item->value->login_time = login_time;
g_hash_table_add(cache, item->value->user);
if (!cur_item) {
head = cur_item = item;
} else {
cur_item->next = item;
cur_item = item;
}
}
}
WTSFreeMemory(info);
}
WTSFreeMemory(entries);
}
g_hash_table_destroy(cache);
return head;
}
typedef struct _ga_matrix_lookup_t {
int major;
int minor;
char const *version;
char const *version_id;
} ga_matrix_lookup_t;
static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][8] = {
{
/* Desktop editions */
{ 5, 0, "Microsoft Windows 2000", "2000"},
{ 5, 1, "Microsoft Windows XP", "xp"},
{ 6, 0, "Microsoft Windows Vista", "vista"},
{ 6, 1, "Microsoft Windows 7" "7"},
{ 6, 2, "Microsoft Windows 8", "8"},
{ 6, 3, "Microsoft Windows 8.1", "8.1"},
{10, 0, "Microsoft Windows 10", "10"},
{ 0, 0, 0}
},{
/* Server editions */
{ 5, 2, "Microsoft Windows Server 2003", "2003"},
{ 6, 0, "Microsoft Windows Server 2008", "2008"},
{ 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"},
{ 6, 2, "Microsoft Windows Server 2012", "2012"},
{ 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"},
{ 0, 0, 0},
{ 0, 0, 0},
{ 0, 0, 0}
}
};
typedef struct _ga_win_10_0_server_t {
int final_build;
char const *version;
char const *version_id;
} ga_win_10_0_server_t;
static ga_win_10_0_server_t const WIN_10_0_SERVER_VERSION_MATRIX[3] = {
{14393, "Microsoft Windows Server 2016", "2016"},
{17763, "Microsoft Windows Server 2019", "2019"},
{0, 0}
};
static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp)
{
typedef NTSTATUS(WINAPI * rtl_get_version_t)(
RTL_OSVERSIONINFOEXW *os_version_info_ex);
info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
HMODULE module = GetModuleHandle("ntdll");
PVOID fun = GetProcAddress(module, "RtlGetVersion");
if (fun == NULL) {
error_setg(errp, QERR_QGA_COMMAND_FAILED,
"Failed to get address of RtlGetVersion");
return;
}
rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun;
rtl_get_version(info);
return;
}
static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id)
{
DWORD major = os_version->dwMajorVersion;
DWORD minor = os_version->dwMinorVersion;
DWORD build = os_version->dwBuildNumber;
int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION);
ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx];
ga_win_10_0_server_t const *win_10_0_table = WIN_10_0_SERVER_VERSION_MATRIX;
while (table->version != NULL) {
if (major == 10 && minor == 0 && tbl_idx) {
while (win_10_0_table->version != NULL) {
if (build <= win_10_0_table->final_build) {
if (id) {
return g_strdup(win_10_0_table->version_id);
} else {
return g_strdup(win_10_0_table->version);
}
}
win_10_0_table++;
}
} else if (major == table->major && minor == table->minor) {
if (id) {
return g_strdup(table->version_id);
} else {
return g_strdup(table->version);
}
}
++table;
}
slog("failed to lookup Windows version: major=%lu, minor=%lu",
major, minor);
return g_strdup("N/A");
}
static char *ga_get_win_product_name(Error **errp)
{
HKEY key = NULL;
DWORD size = 128;
char *result = g_malloc0(size);
LONG err = ERROR_SUCCESS;
err = RegOpenKeyA(HKEY_LOCAL_MACHINE,
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
&key);
if (err != ERROR_SUCCESS) {
error_setg_win32(errp, err, "failed to open registry key");
goto fail;
}
err = RegQueryValueExA(key, "ProductName", NULL, NULL,
(LPBYTE)result, &size);
if (err == ERROR_MORE_DATA) {
slog("ProductName longer than expected (%lu bytes), retrying",
size);
g_free(result);
result = NULL;
if (size > 0) {
result = g_malloc0(size);
err = RegQueryValueExA(key, "ProductName", NULL, NULL,
(LPBYTE)result, &size);
}
}
if (err != ERROR_SUCCESS) {
error_setg_win32(errp, err, "failed to retrive ProductName");
goto fail;
}
return result;
fail:
g_free(result);
return NULL;
}
static char *ga_get_current_arch(void)
{
SYSTEM_INFO info;
GetNativeSystemInfo(&info);
char *result = NULL;
switch (info.wProcessorArchitecture) {
case PROCESSOR_ARCHITECTURE_AMD64:
result = g_strdup("x86_64");
break;
case PROCESSOR_ARCHITECTURE_ARM:
result = g_strdup("arm");
break;
case PROCESSOR_ARCHITECTURE_IA64:
result = g_strdup("ia64");
break;
case PROCESSOR_ARCHITECTURE_INTEL:
result = g_strdup("x86");
break;
case PROCESSOR_ARCHITECTURE_UNKNOWN:
default:
slog("unknown processor architecture 0x%0x",
info.wProcessorArchitecture);
result = g_strdup("unknown");
break;
}
return result;
}
GuestOSInfo *qmp_guest_get_osinfo(Error **errp)
{
Error *local_err = NULL;
OSVERSIONINFOEXW os_version = {0};
bool server;
char *product_name;
GuestOSInfo *info;
ga_get_win_version(&os_version, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return NULL;
}
server = os_version.wProductType != VER_NT_WORKSTATION;
product_name = ga_get_win_product_name(errp);
if (product_name == NULL) {
return NULL;
}
info = g_new0(GuestOSInfo, 1);
info->has_kernel_version = true;
info->kernel_version = g_strdup_printf("%lu.%lu",
os_version.dwMajorVersion,
os_version.dwMinorVersion);
info->has_kernel_release = true;
info->kernel_release = g_strdup_printf("%lu",
os_version.dwBuildNumber);
info->has_machine = true;
info->machine = ga_get_current_arch();
info->has_id = true;
info->id = g_strdup("mswindows");
info->has_name = true;
info->name = g_strdup("Microsoft Windows");
info->has_pretty_name = true;
info->pretty_name = product_name;
info->has_version = true;
info->version = ga_get_win_name(&os_version, false);
info->has_version_id = true;
info->version_id = ga_get_win_name(&os_version, true);
info->has_variant = true;
info->variant = g_strdup(server ? "server" : "client");
info->has_variant_id = true;
info->variant_id = g_strdup(server ? "server" : "client");
return info;
}
/*
* Safely get device property. Returned strings are using wide characters.
* Caller is responsible for freeing the buffer.
*/
static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName,
PDEVPROPTYPE propType)
{
CONFIGRET cr;
g_autofree LPBYTE buffer = NULL;
ULONG buffer_len = 0;
/* First query for needed space */
cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
buffer, &buffer_len, 0);
if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) {
slog("failed to get property size, error=0x%lx", cr);
return NULL;
}
buffer = g_new0(BYTE, buffer_len + 1);
cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
buffer, &buffer_len, 0);
if (cr != CR_SUCCESS) {
slog("failed to get device property, error=0x%lx", cr);
return NULL;
}
return g_steal_pointer(&buffer);
}
static GStrv ga_get_hardware_ids(DEVINST devInstance)
{
GArray *values = NULL;
DEVPROPTYPE cm_type;
LPWSTR id;
g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance,
&qga_DEVPKEY_Device_HardwareIds, &cm_type);
if (property == NULL) {
slog("failed to get hardware IDs");
return NULL;
}
if (*property == '\0') {
/* empty list */
return NULL;
}
values = g_array_new(TRUE, TRUE, sizeof(gchar *));
for (id = property; '\0' != *id; id += lstrlenW(id) + 1) {
gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL);
g_array_append_val(values, id8);
}
return (GStrv)g_array_free(values, FALSE);
}
/*
* https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices
*/
#define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)"
GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
{
GuestDeviceInfoList *head = NULL, *cur_item = NULL, *item = NULL;
HDEVINFO dev_info = INVALID_HANDLE_VALUE;
SP_DEVINFO_DATA dev_info_data;
int i, j;
GError *gerr = NULL;
g_autoptr(GRegex) device_pci_re = NULL;
DEVPROPTYPE cm_type;
device_pci_re = g_regex_new(DEVICE_PCI_RE,
G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0,
&gerr);
g_assert(device_pci_re != NULL);
dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES);
if (dev_info == INVALID_HANDLE_VALUE) {
error_setg(errp, "failed to get device tree");
return NULL;
}
slog("enumerating devices");
for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
bool skip = true;
SYSTEMTIME utc_date;
g_autofree LPWSTR name = NULL;
g_autofree LPFILETIME date = NULL;
g_autofree LPWSTR version = NULL;
g_auto(GStrv) hw_ids = NULL;
g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1);
g_autofree char *vendor_id = NULL;
g_autofree char *device_id = NULL;
name = (LPWSTR)cm_get_property(dev_info_data.DevInst,
&qga_DEVPKEY_NAME, &cm_type);
if (name == NULL) {
slog("failed to get device description");
continue;
}
device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL);
if (device->driver_name == NULL) {
error_setg(errp, "conversion to utf8 failed (driver name)");
continue;
}
slog("querying device: %s", device->driver_name);
hw_ids = ga_get_hardware_ids(dev_info_data.DevInst);
if (hw_ids == NULL) {
continue;
}
for (j = 0; hw_ids[j] != NULL; j++) {
GMatchInfo *match_info;
GuestDeviceAddressPCI *address;
if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) {
continue;
}
skip = false;
address = g_new0(GuestDeviceAddressPCI, 1);
vendor_id = g_match_info_fetch(match_info, 1);
device_id = g_match_info_fetch(match_info, 2);
address->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16);
address->device_id = g_ascii_strtoull(device_id, NULL, 16);
device->address = g_new0(GuestDeviceAddress, 1);
device->has_address = true;
device->address->type = GUEST_DEVICE_ADDRESS_KIND_PCI;
device->address->u.pci.data = address;
g_match_info_free(match_info);
break;
}
if (skip) {
continue;
}
version = (LPWSTR)cm_get_property(dev_info_data.DevInst,
&qga_DEVPKEY_Device_DriverVersion, &cm_type);
if (version == NULL) {
slog("failed to get driver version");
continue;
}
device->driver_version = g_utf16_to_utf8(version, -1, NULL,
NULL, NULL);
if (device->driver_version == NULL) {
error_setg(errp, "conversion to utf8 failed (driver version)");
continue;
}
device->has_driver_version = true;
date = (LPFILETIME)cm_get_property(dev_info_data.DevInst,
&qga_DEVPKEY_Device_DriverDate, &cm_type);
if (date == NULL) {
slog("failed to get driver date");
continue;
}
FileTimeToSystemTime(date, &utc_date);
device->driver_date = g_strdup_printf("%04d-%02d-%02d",
utc_date.wYear, utc_date.wMonth, utc_date.wDay);
device->has_driver_date = true;
slog("driver: %s\ndriver version: %s,%s\n", device->driver_name,
device->driver_date, device->driver_version);
item = g_new0(GuestDeviceInfoList, 1);
item->value = g_steal_pointer(&device);
if (!cur_item) {
head = cur_item = item;
} else {
cur_item->next = item;
cur_item = item;
}
continue;
}
if (dev_info != INVALID_HANDLE_VALUE) {
SetupDiDestroyDeviceInfoList(dev_info);
}
return head;
}
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