Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 1261 insertions, 0 deletions

diff --git a/qemu/qga/commands-win32.c b/qemu/qga/commands-win32.c
new file mode 100644
index 000000000..a7822d5ff
--- /dev/null
+++ b/qemu/qga/commands-win32.c
@@ -0,0 +1,1261 @@
+/*
+ * 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 <glib.h>
+#include <wtypes.h>
+#include <powrprof.h>
+#include <stdio.h>
+#include <string.h>
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#include <iptypes.h>
+#include <iphlpapi.h>
+#ifdef CONFIG_QGA_NTDDSCSI
+#include <winioctl.h>
+#include <ntddscsi.h>
+#include <setupapi.h>
+#include <initguid.h>
+#endif
+#include "qga/guest-agent-core.h"
+#include "qga/vss-win32.h"
+#include "qga-qmp-commands.h"
+#include "qapi/qmp/qerror.h"
+#include "qemu/queue.h"
+#include "qemu/host-utils.h"
+
+#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)
+
+typedef struct GuestFileHandle {
+    int64_t id;
+    HANDLE fh;
+    QTAILQ_ENTRY(GuestFileHandle) next;
+} GuestFileHandle;
+
+static struct {
+    QTAILQ_HEAD(, GuestFileHandle) filehandles;
+} guest_file_state;
+
+
+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",   GENERIC_WRITE,              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+",  GENERIC_WRITE|GENERIC_READ, OPEN_ALWAYS  },
+    {"ab+", GENERIC_WRITE|GENERIC_READ, OPEN_ALWAYS  },
+    {"a+b", GENERIC_WRITE|GENERIC_READ, OPEN_ALWAYS  }
+};
+
+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_malloc0(sizeof(GuestFileHandle));
+    gfh->id = handle;
+    gfh->fh = fh;
+    QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next);
+
+    return handle;
+}
+
+static 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;
+}
+
+int64_t qmp_guest_file_open(const char *path, bool has_mode,
+                            const char *mode, Error **errp)
+{
+    int64_t fd;
+    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;
+
+    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");
+        return -1;
+    }
+
+    fh = CreateFile(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);
+        return -1;
+    }
+
+    fd = guest_file_handle_add(fh, errp);
+    if (fd < 0) {
+        CloseHandle(&fh);
+        error_setg(errp, "failed to add handle to qmp handle table");
+        return -1;
+    }
+
+    slog("guest-file-open, handle: % " PRId64, fd);
+    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);
+    }
+    if (local_err) {
+        error_propagate(errp, local_err);
+    }
+}
+
+static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
+                          Error **errp)
+{
+    Error *local_err = NULL;
+
+    HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
+    if (!thread) {
+        error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
+                   "failed to dispatch asynchronous command");
+        error_propagate(errp, local_err);
+    }
+}
+
+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)) {
+        slog("guest-shutdown failed: %lu", GetLastError());
+        error_setg(errp, QERR_UNDEFINED_ERROR);
+    }
+}
+
+GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count,
+                                   int64_t count, Error **errp)
+{
+    GuestFileRead *read_data = NULL;
+    guchar *buf;
+    HANDLE fh;
+    bool is_ok;
+    DWORD read_count;
+    GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
+
+    if (!gfh) {
+        return NULL;
+    }
+    if (!has_count) {
+        count = QGA_READ_COUNT_DEFAULT;
+    } else if (count < 0) {
+        error_setg(errp, "value '%" PRId64
+                   "' is invalid for argument count", count);
+        return NULL;
+    }
+
+    fh = gfh->fh;
+    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");
+        slog("guest-file-read failed, handle %" PRId64, handle);
+    } else {
+        buf[read_count] = 0;
+        read_data = g_malloc0(sizeof(GuestFileRead));
+        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 = g_base64_decode(buf_b64, &buf_len);
+
+    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_malloc0(sizeof(GuestFileWrite));
+        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,
+                                   int64_t whence, Error **errp)
+{
+    GuestFileHandle *gfh;
+    GuestFileSeek *seek_data;
+    HANDLE fh;
+    LARGE_INTEGER new_pos, off_pos;
+    off_pos.QuadPart = offset;
+    BOOL res;
+    gfh = guest_file_handle_find(handle, errp);
+    if (!gfh) {
+        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");
+    }
+}
+
+static void guest_file_init(void)
+{
+    QTAILQ_INIT(&guest_file_state.filehandles);
+}
+
+#ifdef CONFIG_QGA_NTDDSCSI
+
+static STORAGE_BUS_TYPE 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,
+#if (_WIN32_WINNT >= 0x0600)
+    [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,
+#endif
+#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_VOLUME,
+        0x53f5630dL, 0xb6bf, 0x11d0, 0x94, 0xf2,
+        0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
+
+static GuestPCIAddress *get_pci_info(char *guid, Error **errp)
+{
+    HDEVINFO dev_info;
+    SP_DEVINFO_DATA dev_info_data;
+    DWORD size = 0;
+    int i;
+    char dev_name[MAX_PATH];
+    char *buffer = NULL;
+    GuestPCIAddress *pci = NULL;
+    char *name = g_strdup(&guid[4]);
+
+    if (!QueryDosDevice(name, dev_name, ARRAY_SIZE(dev_name))) {
+        error_setg_win32(errp, GetLastError(), "failed to get dos device name");
+        goto out;
+    }
+
+    dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_VOLUME, 0, 0,
+                                   DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
+    if (dev_info == INVALID_HANDLE_VALUE) {
+        error_setg_win32(errp, GetLastError(), "failed to get devices tree");
+        goto out;
+    }
+
+    dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
+    for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
+        DWORD addr, bus, slot, func, dev, data, size2;
+        while (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
+                                            SPDRP_PHYSICAL_DEVICE_OBJECT_NAME,
+                                            &data, (PBYTE)buffer, size,
+                                            &size2)) {
+            size = MAX(size, size2);
+            if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
+                g_free(buffer);
+                /* Double the size to avoid problems on
+                 * W2k MBCS systems per KB 888609.
+                 * https://support.microsoft.com/en-us/kb/259695 */
+                buffer = g_malloc(size * 2);
+            } else {
+                error_setg_win32(errp, GetLastError(),
+                        "failed to get device name");
+                goto out;
+            }
+        }
+
+        if (g_strcmp0(buffer, dev_name)) {
+            continue;
+        }
+
+        /* There is no need to allocate buffer in the next functions. The size
+         * is known and ULONG according to
+         * https://support.microsoft.com/en-us/kb/253232
+         * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
+         */
+        if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
+                   SPDRP_BUSNUMBER, &data, (PBYTE)&bus, size, NULL)) {
+            break;
+        }
+
+        /* The function retrieves the device's address. This value will be
+         * transformed into device function and number */
+        if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
+                   SPDRP_ADDRESS, &data, (PBYTE)&addr, size, NULL)) {
+            break;
+        }
+
+        /* This call returns UINumber of DEVICE_CAPABILITIES structure.
+         * This number is typically a user-perceived slot number. */
+        if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
+                   SPDRP_UI_NUMBER, &data, (PBYTE)&slot, size, NULL)) {
+            break;
+        }
+
+        /* SetupApi gives us the same information as driver with
+         * IoGetDeviceProperty. According to Microsoft
+         * https://support.microsoft.com/en-us/kb/253232
+         * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF);
+         * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF);
+         * SPDRP_ADDRESS is propertyAddress, so we do the same.*/
+
+        func = addr & 0x0000FFFF;
+        dev = (addr >> 16) & 0x0000FFFF;
+        pci = g_malloc0(sizeof(*pci));
+        pci->domain = dev;
+        pci->slot = slot;
+        pci->function = func;
+        pci->bus = bus;
+        break;
+    }
+out:
+    g_free(buffer);
+    g_free(name);
+    return pci;
+}
+
+static int get_disk_bus_type(HANDLE vol_h, Error **errp)
+{
+    STORAGE_PROPERTY_QUERY query;
+    STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
+    DWORD received;
+
+    dev_desc = &buf;
+    dev_desc->Size = sizeof(buf);
+    query.PropertyId = StorageDeviceProperty;
+    query.QueryType = PropertyStandardQuery;
+
+    if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
+                         sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
+                         dev_desc->Size, &received, NULL)) {
+        error_setg_win32(errp, GetLastError(), "failed to get bus type");
+        return -1;
+    }
+
+    return dev_desc->BusType;
+}
+
+/* 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)
+{
+    GuestDiskAddressList *list = NULL;
+    GuestDiskAddress *disk;
+    SCSI_ADDRESS addr, *scsi_ad;
+    DWORD len;
+    int bus;
+    HANDLE vol_h;
+
+    scsi_ad = &addr;
+    char *name = g_strndup(guid, strlen(guid)-1);
+
+    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_free;
+    }
+
+    bus = get_disk_bus_type(vol_h, errp);
+    if (bus < 0) {
+        goto out_close;
+    }
+
+    disk = g_malloc0(sizeof(*disk));
+    disk->bus_type = find_bus_type(bus);
+    if (bus == BusTypeScsi || bus == BusTypeAta || bus == BusTypeRAID
+#if (_WIN32_WINNT >= 0x0600)
+            /* This bus type is not supported before Windows Server 2003 SP1 */
+            || bus == BusTypeSas
+#endif
+        ) {
+        /* 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 */
+        if (DeviceIoControl(vol_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;
+            disk->pci_controller = get_pci_info(name, errp);
+        }
+        /* We do not set error in this case, because we still have enough
+         * information about volume. */
+    } else {
+         disk->pci_controller = NULL;
+    }
+
+    list = g_malloc0(sizeof(*list));
+    list->value = disk;
+    list->next = NULL;
+out_close:
+    CloseHandle(vol_h);
+out_free:
+    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;
+    char fs_name[32];
+    char vol_info[MAX_PATH+1];
+    size_t len;
+    GuestFilesystemInfo *fs = 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;
+    }
+
+    len = strlen(mnt_point);
+    mnt_point[len] = '\\';
+    mnt_point[len+1] = 0;
+    if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL,
+                              NULL, (LPSTR)&fs_name, sizeof(fs_name))) {
+        if (GetLastError() != ERROR_NOT_READY) {
+            error_setg_win32(errp, GetLastError(), "failed to get volume info");
+        }
+        goto free;
+    }
+
+    fs_name[sizeof(fs_name) - 1] = 0;
+    fs = g_malloc(sizeof(*fs));
+    fs->name = g_strdup(guid);
+    if (len == 0) {
+        fs->mountpoint = g_strdup("System Reserved");
+    } else {
+        fs->mountpoint = g_strndup(mnt_point, len);
+    }
+    fs->type = g_strdup(fs_name);
+    fs->disk = build_guest_disk_info(guid, errp);;
+free:
+    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 {
+        GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp);
+        if (info == NULL) {
+            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)
+{
+    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, &local_err, true);
+    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;
+}
+
+int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
+                                       strList *mountpoints,
+                                       Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+
+    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, errp, false);
+
+    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)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+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;
+    Error *local_err = NULL;
+
+    ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
+    if (!GetPwrCapabilities(&sys_pwr_caps)) {
+        error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
+                   "failed to determine guest suspend capabilities");
+        goto out;
+    }
+
+    switch (mode) {
+    case GUEST_SUSPEND_MODE_DISK:
+        if (!sys_pwr_caps.SystemS4) {
+            error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
+                       "suspend-to-disk not supported by OS");
+        }
+        break;
+    case GUEST_SUSPEND_MODE_RAM:
+        if (!sys_pwr_caps.SystemS3) {
+            error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
+                       "suspend-to-ram not supported by OS");
+        }
+        break;
+    default:
+        error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode",
+                   "GuestSuspendMode");
+    }
+
+out:
+    if (local_err) {
+        error_propagate(errp, local_err);
+    }
+}
+
+static DWORD WINAPI do_suspend(LPVOID opaque)
+{
+    GuestSuspendMode *mode = opaque;
+    DWORD ret = 0;
+
+    if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
+        slog("failed to suspend guest, %lu", GetLastError());
+        ret = -1;
+    }
+    g_free(mode);
+    return ret;
+}
+
+void qmp_guest_suspend_disk(Error **errp)
+{
+    Error *local_err = NULL;
+    GuestSuspendMode *mode = g_malloc(sizeof(GuestSuspendMode));
+
+    *mode = GUEST_SUSPEND_MODE_DISK;
+    check_suspend_mode(*mode, &local_err);
+    acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
+    execute_async(do_suspend, mode, &local_err);
+
+    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_malloc(sizeof(GuestSuspendMode));
+
+    *mode = GUEST_SUSPEND_MODE_RAM;
+    check_suspend_mode(*mode, &local_err);
+    acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
+    execute_async(do_suspend, mode, &local_err);
+
+    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 i;
+
+    i = wcslen(wstr) + 1;
+    str = g_malloc(i);
+    WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK,
+                        wstr, -1, str, i, 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;
+}
+
+#if (_WIN32_WINNT >= 0x0600)
+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;
+}
+#else
+/* When using the Windows XP and 2003 build environment, do the best we can to
+ * figure out the prefix.
+ */
+static IP_ADAPTER_INFO *guest_get_adapters_info(void)
+{
+    IP_ADAPTER_INFO *adptr_info = NULL;
+    ULONG adptr_info_len = 0;
+    DWORD ret;
+
+    /* Call the first time to get the adptr_info_len. */
+    GetAdaptersInfo(adptr_info, &adptr_info_len);
+
+    adptr_info = g_malloc(adptr_info_len);
+    ret = GetAdaptersInfo(adptr_info, &adptr_info_len);
+    if (ret != ERROR_SUCCESS) {
+        g_free(adptr_info);
+        adptr_info = NULL;
+    }
+    return adptr_info;
+}
+
+static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
+{
+    int64_t prefix = -1; /* Use for AF_INET6 and unknown/undetermined values. */
+    IP_ADAPTER_INFO *adptr_info, *info;
+    IP_ADDR_STRING *ip;
+    struct in_addr *p;
+
+    if (ip_addr->Address.lpSockaddr->sa_family != AF_INET) {
+        return prefix;
+    }
+    adptr_info = guest_get_adapters_info();
+    if (adptr_info == NULL) {
+        return prefix;
+    }
+
+    /* Match up the passed in ip_addr with one found in adaptr_info.
+     * The matching one in adptr_info will have the netmask.
+     */
+    p = &((struct sockaddr_in *)ip_addr->Address.lpSockaddr)->sin_addr;
+    for (info = adptr_info; info; info = info->Next) {
+        for (ip = &info->IpAddressList; ip; ip = ip->Next) {
+            if (p->S_un.S_addr == inet_addr(ip->IpAddress.String)) {
+                prefix = ctpop32(inet_addr(ip->IpMask.String));
+                goto out;
+            }
+        }
+    }
+out:
+    g_free(adptr_info);
+    return prefix;
+}
+#endif
+
+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;
+    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;
+        }
+    }
+    WSACleanup();
+out:
+    g_free(adptr_addrs);
+    return head;
+}
+
+int64_t qmp_guest_get_time(Error **errp)
+{
+    SYSTEMTIME ts = {0};
+    int64_t time_ns;
+    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;
+    }
+
+    time_ns = ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime)
+                - W32_FT_OFFSET) * 100;
+
+    return time_ns;
+}
+
+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
+         */
+        error_setg(errp, "Time argument is required on this platform");
+        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)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return NULL;
+}
+
+int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+    return -1;
+}
+
+void qmp_guest_set_user_password(const char *username,
+                                 const char *password,
+                                 bool crypted,
+                                 Error **errp)
+{
+    error_setg(errp, QERR_UNSUPPORTED);
+}
+
+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-get-vcpus", "guest-set-vcpus",
+        "guest-set-user-password",
+        "guest-get-memory-blocks", "guest-set-memory-blocks",
+        "guest-get-memory-block-size",
+        "guest-fsfreeze-freeze-list",
+        "guest-fstrim", NULL};
+    char **p = (char **)list_unsupported;
+
+    while (*p) {
+        blacklist = g_list_append(blacklist, *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, *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);
+    }
+    ga_command_state_add(cs, guest_file_init, NULL);
+}