/* * QEMU Guest Agent win32-specific command implementations * * Copyright IBM Corp. 2012 * * Authors: * Michael Roth * Gal Hammer * * 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 #include #include #include #include #include #include #ifdef CONFIG_QGA_NTDDSCSI #include #include #include #include #endif #include #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" #include "qemu/base64.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 = { .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 } }; 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; } 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; } 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; 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; } /* 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"); 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_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 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_new(GuestSuspendMode, 1); *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_new(GuestSuspendMode, 1); *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) { 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 = false; 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, *wpass; USER_INFO_1003 pi1003 = { 0, }; 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, NULL); wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, NULL); 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); } 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-fsfreeze-freeze-list", "guest-fstrim", 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); } }