Merge branch 'upstream-merge'
[qemu-kvm.git] / qga / commands-win32.c
blob5bd8fb27f2c9176808b8d5f771debfe96e3ead20
1 /*
2 * QEMU Guest Agent win32-specific command implementations
4 * Copyright IBM Corp. 2012
6 * Authors:
7 * Michael Roth <mdroth@linux.vnet.ibm.com>
8 * Gal Hammer <ghammer@redhat.com>
10 * This work is licensed under the terms of the GNU GPL, version 2 or later.
11 * See the COPYING file in the top-level directory.
14 #include <glib.h>
15 #include <wtypes.h>
16 #include <powrprof.h>
17 #include "qga/guest-agent-core.h"
18 #include "qga-qmp-commands.h"
19 #include "qerror.h"
21 #ifndef SHTDN_REASON_FLAG_PLANNED
22 #define SHTDN_REASON_FLAG_PLANNED 0x80000000
23 #endif
25 static void acquire_privilege(const char *name, Error **err)
27 HANDLE token;
28 TOKEN_PRIVILEGES priv;
29 Error *local_err = NULL;
31 if (error_is_set(err)) {
32 return;
35 if (OpenProcessToken(GetCurrentProcess(),
36 TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &token))
38 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
39 error_set(&local_err, QERR_QGA_COMMAND_FAILED,
40 "no luid for requested privilege");
41 goto out;
44 priv.PrivilegeCount = 1;
45 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
47 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
48 error_set(&local_err, QERR_QGA_COMMAND_FAILED,
49 "unable to acquire requested privilege");
50 goto out;
53 CloseHandle(token);
54 } else {
55 error_set(&local_err, QERR_QGA_COMMAND_FAILED,
56 "failed to open privilege token");
59 out:
60 if (local_err) {
61 error_propagate(err, local_err);
65 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque, Error **err)
67 Error *local_err = NULL;
69 if (error_is_set(err)) {
70 return;
72 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
73 if (!thread) {
74 error_set(&local_err, QERR_QGA_COMMAND_FAILED,
75 "failed to dispatch asynchronous command");
76 error_propagate(err, local_err);
80 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **err)
82 UINT shutdown_flag = EWX_FORCE;
84 slog("guest-shutdown called, mode: %s", mode);
86 if (!has_mode || strcmp(mode, "powerdown") == 0) {
87 shutdown_flag |= EWX_POWEROFF;
88 } else if (strcmp(mode, "halt") == 0) {
89 shutdown_flag |= EWX_SHUTDOWN;
90 } else if (strcmp(mode, "reboot") == 0) {
91 shutdown_flag |= EWX_REBOOT;
92 } else {
93 error_set(err, QERR_INVALID_PARAMETER_VALUE, "mode",
94 "halt|powerdown|reboot");
95 return;
98 /* Request a shutdown privilege, but try to shut down the system
99 anyway. */
100 acquire_privilege(SE_SHUTDOWN_NAME, err);
101 if (error_is_set(err)) {
102 return;
105 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
106 slog("guest-shutdown failed: %d", GetLastError());
107 error_set(err, QERR_UNDEFINED_ERROR);
111 int64_t qmp_guest_file_open(const char *path, bool has_mode, const char *mode, Error **err)
113 error_set(err, QERR_UNSUPPORTED);
114 return 0;
117 void qmp_guest_file_close(int64_t handle, Error **err)
119 error_set(err, QERR_UNSUPPORTED);
122 GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count,
123 int64_t count, Error **err)
125 error_set(err, QERR_UNSUPPORTED);
126 return 0;
129 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
130 bool has_count, int64_t count, Error **err)
132 error_set(err, QERR_UNSUPPORTED);
133 return 0;
136 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
137 int64_t whence, Error **err)
139 error_set(err, QERR_UNSUPPORTED);
140 return 0;
143 void qmp_guest_file_flush(int64_t handle, Error **err)
145 error_set(err, QERR_UNSUPPORTED);
149 * Return status of freeze/thaw
151 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **err)
153 error_set(err, QERR_UNSUPPORTED);
154 return 0;
158 * Walk list of mounted file systems in the guest, and freeze the ones which
159 * are real local file systems.
161 int64_t qmp_guest_fsfreeze_freeze(Error **err)
163 error_set(err, QERR_UNSUPPORTED);
164 return 0;
168 * Walk list of frozen file systems in the guest, and thaw them.
170 int64_t qmp_guest_fsfreeze_thaw(Error **err)
172 error_set(err, QERR_UNSUPPORTED);
173 return 0;
177 * Walk list of mounted file systems in the guest, and discard unused
178 * areas.
180 void qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **err)
182 error_set(err, QERR_UNSUPPORTED);
185 typedef enum {
186 GUEST_SUSPEND_MODE_DISK,
187 GUEST_SUSPEND_MODE_RAM
188 } GuestSuspendMode;
190 static void check_suspend_mode(GuestSuspendMode mode, Error **err)
192 SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
193 Error *local_err = NULL;
195 if (error_is_set(err)) {
196 return;
198 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
199 if (!GetPwrCapabilities(&sys_pwr_caps)) {
200 error_set(&local_err, QERR_QGA_COMMAND_FAILED,
201 "failed to determine guest suspend capabilities");
202 goto out;
205 switch (mode) {
206 case GUEST_SUSPEND_MODE_DISK:
207 if (!sys_pwr_caps.SystemS4) {
208 error_set(&local_err, QERR_QGA_COMMAND_FAILED,
209 "suspend-to-disk not supported by OS");
211 break;
212 case GUEST_SUSPEND_MODE_RAM:
213 if (!sys_pwr_caps.SystemS3) {
214 error_set(&local_err, QERR_QGA_COMMAND_FAILED,
215 "suspend-to-ram not supported by OS");
217 break;
218 default:
219 error_set(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode",
220 "GuestSuspendMode");
223 out:
224 if (local_err) {
225 error_propagate(err, local_err);
229 static DWORD WINAPI do_suspend(LPVOID opaque)
231 GuestSuspendMode *mode = opaque;
232 DWORD ret = 0;
234 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
235 slog("failed to suspend guest, %s", GetLastError());
236 ret = -1;
238 g_free(mode);
239 return ret;
242 void qmp_guest_suspend_disk(Error **err)
244 GuestSuspendMode *mode = g_malloc(sizeof(GuestSuspendMode));
246 *mode = GUEST_SUSPEND_MODE_DISK;
247 check_suspend_mode(*mode, err);
248 acquire_privilege(SE_SHUTDOWN_NAME, err);
249 execute_async(do_suspend, mode, err);
251 if (error_is_set(err)) {
252 g_free(mode);
256 void qmp_guest_suspend_ram(Error **err)
258 GuestSuspendMode *mode = g_malloc(sizeof(GuestSuspendMode));
260 *mode = GUEST_SUSPEND_MODE_RAM;
261 check_suspend_mode(*mode, err);
262 acquire_privilege(SE_SHUTDOWN_NAME, err);
263 execute_async(do_suspend, mode, err);
265 if (error_is_set(err)) {
266 g_free(mode);
270 void qmp_guest_suspend_hybrid(Error **err)
272 error_set(err, QERR_UNSUPPORTED);
275 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **err)
277 error_set(err, QERR_UNSUPPORTED);
278 return NULL;
281 /* register init/cleanup routines for stateful command groups */
282 void ga_command_state_init(GAState *s, GACommandState *cs)