--- /dev/null
+/*
+ * 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);
+}
Code Review / kvmfornfv.git / blobdiff