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S3/S4/S5 Long Run Test
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1. Why need it?
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) e" f) c: O, f7 q* L/ K6 XNB研发的工程中,需要跑很多的测试项目,其中long run S3/S4/S5就是非常重要的测试项目。而且对于测试结果非常看重,一般long run测试fail就没法出货。常规的测试方法就是10~20台机器测试S3/S4/S5 1000 cycle,如果fail率在万分之几就有可能要挂了。于是我就有了写一个long run S3/S4/S5测试程序的想法了。
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2. How to implement?' ^: @# n3 J. F& C+ `4 i/ P
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心动不如行动,Let’s go!经过几番查阅MSDN,S3/S4的功能已经有些眉目了,可是如何实现S5 wakeup呢?猛翻SDK&DDK,狂试API结果发现不行,好像没有相关的API能做到这件事。最后联系微软的FAE,他们的结论也是如此。既然常规做法不行,那么我就另辟蹊径。我知道BIOS Setup menu 有个选项可以设置RTC唤醒,只要机器还有电S5的状态下也可以唤醒机器。那么BIOS是怎么做的呢?我请教了BIOS 得知需要做两个动作:1.设置CMOS中的alarm time 2:将chipset RTC_EN bit置起然后进入S5。系统在alarm time到达时会产生wakeup event,Chipset会送power sequence系统就会开机。通过一个IO port driver,完成上述过程后我调用API ExitWindowsEx(EWX_SHUTDOWN|EWX_FORCE,0);关机,我等的头发都白了系统也没有唤醒L,到底什么地方出了问题呀?后来我用SE.exe模拟上述过程,结果发现RTC_EN被我修改过之后,过了一会居然又被改回原来的值了,看起来windows在幕后做了不少小动作哦J,这样一来这个方法就行不通了,那么该怎么办呢?答案就是使用EC_BIOS去做,只要有电EC就会运行,那么S5时EC仍然在工作,所以只需要EC在特定的条件下模拟一个开机动作即可。思路已经有了那么该如何实现呢?方法有两种:a.通过IO port driver 下81 cmd给66 port,然后将EC ram index和value送给62 port,这样就可以修改EC ram了,然后EC在S5时检查该EC ram值如果非0就倒数计时,时间到了就模拟一个开机动作,从而完成S5 wake up。b.同样是写EC ram不过使用不同的方法,我们可以在BIOS asl code里定制一个WMI ACPI device,并且在该device scope提供query/set EC ram的方法,并且提供一个WMI ACPI的driver,这样应用程序就可以方便的操纵EC ram了,而且一旦完成这只driver就可以完成非常多的增值部分,比如我们可以写一个程序读写EC ram中的battery info;或者我们可以写一个读取thermal info程序等等。6 p) Q+ m' d7 G8 Y
如下图1是程序的运行画面,该测试程序实现了S3/S4/S5的功能S3/S4在xp下面可以正常工作,而
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o$ K8 ^, }: B; w9 avista下无法唤醒L。下S3/S4是通下述代码实现的:
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图 1+ p/ q5 c8 _! t' ^; i
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) Z/ h" p3 j8 Y//hibernate and standby8 n( I6 C: Z1 N& i3 O$ x. V% R
( |5 i2 k# S; l) E2 jint$ W4 ]) ?( |% w' v) G. n
CAutoPowerOnShutdownDlg::SetPower(BOOL
( F4 i9 B0 u/ o, ^bSuspend,BOOL, ]6 n5 a8 o; I9 R, \) _
bForce)( ~$ U5 N1 E' _; n: Z& G( }
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{
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3 E: h: p6 O* ], QTOKEN_PRIVILEGES' F7 y& X- E9 L. P
tp;/ k% \- Q$ V' o9 I& ^- S; n, O7 @! F
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HANDLE
1 q0 Y9 v0 p) [0 I2 A" o* [4 qhToken;
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$ v- u" E+ j% N8 E+ p8 V% ]LUID$ w% x2 ^$ H% {: Z5 N: W- N+ B
luid;' h2 m6 {( l! i# G6 V& `
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' o1 _. |! ~: H# {8 _LPTSTR
) p4 `4 u Y# B- ~6 ^MachineName=NULL;
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if(!OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES,&hToken
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return/ e1 B# @4 D3 ~; c7 s5 h
RTN_ERROR;
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}
% [! \9 ]- n9 F4 f( H8 D
7 D) U5 r" g- E( ^ if(!LookupPrivilegeValue(MachineName,
5 L5 N8 j7 ?) S0 o2 ?SE_SHUTDOWN_NAME,
% f, t* z) |# Y8 z$ K- M&luid))
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{
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* w- d7 g4 q; Z' d6 T& X return
4 b* R5 R: ?: `* aRTN_ERROR;
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* A( `/ I4 p6 ^, ^! j; r# Atp.PrivilegeCount- ~# n7 o* J* \
=
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tp.Privileges[0].Luid
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U/ u/ N6 `) G, ] A( c& J1 l( m8 iluid;
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0 {5 v$ I/ e. ^% z. P. xtp.Privileges[0].Attributes
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SE_PRIVILEGE_ENABLED;
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AdjustTokenPrivileges(hToken,
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&tp,
1 u( d5 g5 `* {, V2 N+ Q2 k+ fsizeof(TOKEN_PRIVILEGES),NULL,0 q- y- _/ z/ l. s+ @# E. J
+ X+ x: y/ {; R. _7 KNULL
2 R9 ?& T' e( v2 _* q& s);
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' W3 \: B0 z6 y1 V1 G1 u; SSetSystemPowerState(bSuspend,bForce);, B/ I( A7 F. v# N
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return
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S3/S4 wake up function是通过在下去的时候设置一个WaitableTimer实
, B( ?( c4 Y* K8 w& w' z现唤醒的功能代码如下所示:/ z7 x1 u' r" a. S# r
4 @+ i/ P2 @2 ^9 U, G6 scase
' _% D) L( l% P" N3 r0 \6 x8 x& iPBT_APMSUSPEND:
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HANDLE hTimer=::CreateWaitableTimer(NULL,TRUE,CString(_T("WaitForResume")));) v+ {9 ^* R& `2 U/ j. G7 p
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if(!hTimer)
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MessageBox(CString(_T("Fail
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create( I# c) k M% A1 Z: `# d
waitable2 U0 U; g: g( O9 S' J( j$ M# z4 h
timer!")));
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hTimer=OpenWaitableTimer(TIMER_ALL_ACCESS,TRUE,CString(_T("WaitForResume")));3 k* w# f1 x0 F* N
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LARGE_INTEGER! N& l: S( v- @2 e; l$ p
liDueTime;% J( z1 F8 c; z/ ?
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+ ?: K9 X. w; A3 ?, D8 y0 R& f& \liDueTime.QuadPart=m_DlInf.m_TimeSnd *1000*1000*(-10);- m+ h4 Y& ?6 V Q0 e
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if(!::SetWaitableTimer(hTimer,&liDueTime,0,NULL,NULL,TRUE))) Q7 Y, k( l! A
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MessageBox(CString(_T("Fail* `# [/ m- l& v* O* J# Y
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set; r0 m: ?! |3 h! y& G6 f
waitable
% _7 X {- b0 ] etimer!")));
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5 I3 } b; G: [0 t9 s* | break;
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break;
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最关键的部分就是S5 wake up了我们来看看它的实现代码吧,代码中最核
' z+ E2 n* v( R( g+ [ H% X* s" `1 `心的部分就是同连接到我们定制的WMI class MSI_System,然后通过" i" M1 Q* K+ ?8 y9 z& p, {
HRESULT PutInstance(6 v5 p6 E1 c( E9 G, c9 _
[in]1 y' T* _! D+ o/ d7 M
IWbemClassObject* pInst,
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LONG lFlags,
1 ^7 t; T1 \, I% n, I[in]
: |3 j4 A- T- n( UIWbemContext* pCtx,, B! d9 T3 h: k5 v) t
[out]" c6 q8 ^, t9 g) S5 d. K$ \1 a
IWbemCallResult** ppCallResult);修改该class的System变量而该变量在BIOS的asl中被定义在EC ram之1 B2 p% u, K5 r% d- l# J
中的特定位置,这样就会改变EC ram中的值了。
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% J+ B1 }$ ~9 H7 Nvoid CAutoPowerOnShutdownDlg::SetS4WakeTimer(unsigned char seconds)4 Q' {5 s9 h! ^* H/ @
2 C% _3 A$ A# L" V2 ~{
4 w; l( f! ]( i
+ H( M, r$ l0 K$ F5 bHRESULT hres;* C5 V5 f/ { x. q3 x: _
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p( O" E* A: o
+ ?$ {' |' m) R. {// Step 1: --------------------------------------------------2 l/ i, H7 J9 p* m
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// Initialize COM. ------------------------------------------
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hres =1 T; S' h, D5 ^4 }
CoInitializeEx(0, COINIT_MULTITHREADED); / g# t" o7 T/ Z, A$ H/ H
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6 F) Y; Q0 O8 x. O/ F6 c4 T; k. I9 aif (FAILED(hres))
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{
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n& g% l" w1 q. ucout << "Failed to initialize COM library. Error code = 0x"
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<< hex << hres << endl;
! N! n& ~( ^: E% t- I- @ return;
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}
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- f- J7 V6 S6 U- J. e) w k" T// Step 2: --------------------------------------------------
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# t7 T% h; a& J' D// Set general COM security levels --------------------------- I* y G. D7 s1 x2 B7 v
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// Note: If you are using Windows 2000, you need to specify -
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// the default authentication credentials for a user by using8 d6 a/ C# M: m# M% s* M
+ `4 \3 M) N9 {( K: u) [7 F3 I0 m4 g' j. |
+ g' e& ^6 b! J+ p* q% C// a SOLE_AUTHENTICATION_LIST structure in the pAuthList ----# a- [3 ]5 p1 {5 ~: a
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// parameter of CoInitializeSecurity ------------------------
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! h4 l$ l/ b3 F$ g7 J: n! U; Lhres =
2 { \- \" G. }, K& v, cCoInitializeSecurity(
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NULL,
8 [" E1 n& B ~: D9 O2 N
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// COM authentication
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NULL,
. g* l1 z1 I! G) T// Authentication services ]5 O" f) }5 G) \
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- X1 z2 e# J# _7 n1 m" c8 r' CNULL,
! e4 j4 P$ Y& f! j8 R// Reserved/ V- K$ h" I6 U' s" }" K- y/ W
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4 e* `; Y' M& @2 g5 @9 E YRPC_C_AUTHN_LEVEL_DEFAULT,
8 A4 G/ {( J8 K! i. `- s// Default authentication ! d$ a! S! E. J$ P2 P* F
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RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation
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; m! j5 k) w" |5 X* y# WNULL,/ r! ~2 a8 I0 K0 `
// Authentication info+ R+ w4 l, Q9 X
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- {2 Z3 I; w; [+ c. f5 e* p. FEOAC_NONE,
; N( E, v/ m3 C: K. f: C9 C. w/ \' R// Additional capabilities / X ?, Y4 D8 o0 [# v }7 w
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NULL+ o. p; f7 d% p# ]+ |! ^
// Reserved
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if (FAILED(hres))
% E4 z4 F& Q; E* t3 ^
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cout << "Failed to initialize security. Error code = 0x"
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( V( B3 |( j$ `; l$ [( y) q0 \<< hex << hres << endl;
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0 }9 J2 u/ O& ECoUninitialize();; o1 x$ B" D6 F7 s T
return;" e1 ?( w: j6 d8 _
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" R. \7 B7 @ n// Step 3: ---------------------------------------------------
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// Obtain the initial locator to WMI -------------------------
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, W5 m( p( T( ]( a) v! _4 h' _; S3 [IWbemLocator *pLoc = NULL; R7 ]/ [' h+ G" ]; n+ k5 ^$ V
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% M& A2 I: H5 c5 V, A d1 T+ A
# G7 p# P u: _9 Fhres = CoCreateInstance(
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CLSID_WbemLocator,& K& \2 S- `7 T; L! U
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: q7 e: Y+ Y/ }8 M' B3 ?. o* tCLSCTX_INPROC_SERVER,
! ?/ U1 A9 O# H0 z% S X$ s1 V# f2 D
3 s# ]9 l, g5 \ i0 T1 s; bIID_IWbemLocator, (LPVOID *) &pLoc);
5 j4 A* K$ r% x: A7 X, e3 g/ N; V/ [. {. s& A
/ t0 |' v1 k0 \0 C+ o/ N5 \: M$ _$ w% I! d& M: h
1 ~" I- |* f: o: D# [, Tif (FAILED(hres))
- @9 F7 I0 F& c1 R' F% n# n. X" y% u( E
( e+ A' g2 u9 O* |9 t
{
9 u9 S# k, S2 ?( T: ^$ P
- E! o, H) o, |0 `& p4 j" x2 V5 m. s- y4 C8 v j
cout << "Failed to create IWbemLocator object."6 N( f8 ^* z" f% s8 G
: b: m& U" Y1 g* c
% [9 q: H0 g3 M/ t1 L
<< " Err code = 0x": c' Z( Q1 S3 H& z5 o3 U/ P, u9 [' E
% Q( `) q) y- \5 U
1 ]5 N H ~* q* L! Z<< hex << hres << endl;. K# N* g. c: I8 m2 T
" u0 B! A% O+ z% K& h ] h
# k S: m% V( c7 o6 i
CoUninitialize();
6 N8 n7 r0 ?" l# F/ R( `/ S
8 n) D2 c) X; p, v2 e8 t
: U4 T4 D1 G6 f: m2 ?, }return ;* ^3 @, t$ [* e3 n
// Program has failed.
4 `/ y2 Q( ~: G! Z9 Y) k T5 R4 R% u: [
. u% e/ r/ J1 b9 [, a5 D! V% S% G# O; H9 v
}) \7 i4 C1 H0 j7 {. U
+ O" H7 s7 r1 v( k+ U1 i- a9 ~! P e9 D! K8 ]7 B
8 \# P3 u/ h/ n N1 V, c! A
// Step 4: -----------------------------------------------------/ j" J4 Z/ B9 E. A- X6 A
n% N# A- n5 Y2 s; t' ~! I; k
* N' M1 a" v6 y/ ^3 _
! E8 _9 D. X- y, {0 ^) x0 e$ w- |// Connect to WMI through the IWbemLocator::ConnectServer method
8 i2 t% m @8 g- D4 a# u& O6 T D+ I0 P) e( p* j
) I( S5 I2 I) X/ f4 X8 |% F' O; g; \. W* M
IWbemServices *pSvc = NULL;
- J+ f& b/ Q) a( q+ G/ D1 o$ o+ O5 g6 p, v4 q: Q( e
! Y0 R/ A: m6 G) s9 B+ d4 I0 K5 G5 x+ c! B, B6 i. c- G, e. K( ]+ P
) H" Y6 E. {# K. P$ X* Z9 U// Connect to the root\cimv2 namespace with1 N1 _. c- ?& |0 B, }
0 H) n# V: @) q$ T5 [4 x7 ^/ ^- t2 m6 ^
8 `, X5 X* o; T1 `6 R
// the current user and obtain pointer pSvc; k7 I$ V/ l; {8 j; v( w
6 ^/ h4 m$ Q2 F# o1 u% [0 E: U5 R& ^% L1 J
// to make IWbemServices calls.7 d& ~! d9 F8 V `4 L
7 @5 |. O7 Q& ?4 A" N& m. Y. T
: X# d/ H3 Q( z7 x8 U. r+ R- d6 u
hres = pLoc->ConnectServer(& N$ s# d9 D2 K, j7 r
+ e$ I6 A# t2 J7 x* w6 l) f
x0 R8 v$ p+ T. `2 C3 a% G' {7 S_bstr_t(L"ROOT\\WMI"), // Object path of WMI namespace
) m3 z* U; b: [) ?" {% U+ |, S. O5 v1 H
0 G2 W8 e# X: n# M9 ~& I
NULL,
: R4 N' [0 `1 I2 e T// User name. NULL = current user' I) |2 c% [5 }( K4 O9 d3 U& ?1 r x
0 ^4 o5 n+ j. C3 U; f1 l8 n/ t- {/ H |/ O0 n& c8 S0 U( ?" P
NULL,
* [6 c2 `; H. Q+ ^& f// User password. NULL = current& i- M0 r0 e& l% p. e* G) ~, c
8 \1 M- n. S- d
5 F( X& S4 U& d1 A& E9 } v0,
* N! p" U3 L& V' h* B/ K% Q" `// Locale. NULL indicates current
) g7 Q- \* E+ W. k7 D1 `" S5 m" R" Y9 J0 ^+ P9 U* c/ H
0 x5 |6 d1 w6 n) w6 F
NULL,
7 H6 W% F7 H4 o9 n// Security flags.2 U; N1 N) w/ {6 t
: {' H, f e1 a% G% r4 C- f, @0 a/ m: v& \4 @
0,: O7 y( \; K& s+ _- f+ H5 v% J
// Authority (e.g. Kerberos)! }! Y: T1 L$ z1 D) j+ G
g: y9 ~; ~% {$ M8 I* [
/ V. [& y2 B5 G( h
0,
0 i) D2 U9 a3 j// Context object : r s5 i! b- A2 P
& t# [& z4 q) L+ l; o+ I' t* P
B. U/ m% g' n8 Y7 B; |3 @
&pSvc
, x: X" W' e" E5 o) I' o. j// pointer to IWbemServices proxy; ^) l' D4 O# K* g3 I& \; |7 ^7 H
" o5 C2 U% p" I! L3 t$ _) u
6 `' _8 H0 l' |);
( }' k: H" c$ R: C$ ~8 k- c1 J2 t/ W* T5 q L& e8 ^
* T! r! u- Q, S+ q
8 A8 I: P$ o5 b7 t
5 f6 M/ f" _: t( D) Uif (FAILED(hres))
5 n d4 r( U3 L: h2 S6 Q
' y. M2 w2 E0 ?- H! `
% F+ J. t2 G* i& e: q/ n$ I{
0 M5 G0 m% I% J5 i+ u6 y" j1 w' n1 k8 b% l2 ?
! P/ M/ k( J' z, p
cout << "Could not connect. Error code = 0x" # ^) {1 V# w+ f. [' w- {* S# t
) W" r) L- {+ b: m, W# N
) F8 D: `: @3 u% i+ a& U: U2 c<< hex << hres << endl;& D [& T, e y8 b
; M8 I8 p0 B4 j) i8 `( L4 C- B1 \# k
/ B: A* m4 q0 W& x) v
pLoc->Release();
4 D& k/ q+ ^+ q0 X& `! |+ i7 I
) j4 A$ J4 m' u
2 u) r4 E- Y; N9 f
( w7 t* g; x. Q4 b! I2 { wCoUninitialize();; H! v0 u$ _) z8 @
( E/ @& z8 G$ C, \# X3 \4 X X
8 _) Z- K( t4 N7 C" Z
n% l* `; E$ k8 I$ Z' v, d
; Q: A1 \) ~' Y5 ?( G* O
return ;
! {+ s; ]/ i7 @/ h# k// Program has failed.
% U% x" j4 ~: d8 y" p- q' E3 v. t
7 b# x. M& Z. n' Q
" D2 S7 |* o5 [5 Z}$ M, i J+ L. p5 \. ]( q
! L/ d t# q, a; l
" B( V. p( S& V6 M
, c2 h4 U: s% c6 w! Jcout << "Connected to ROOT\\CIMV2 WMI namespace" << endl;, {' m; _4 e% g; f/ k s
& [, P/ j" H# {" R% [- t
9 s6 P1 _+ Q ?3 ~. x0 h' O
3 `3 S+ {2 K+ F. D! S
+ B: E; r3 Y6 \' ]// Step 5: --------------------------------------------------. }% a# c2 S2 n( r9 t( q
4 `) }) p# k% {6 c0 k3 ]0 i0 J5 w% V9 h% S4 o
// Set security levels on the proxy -------------------------7 C1 e( U1 {& V& b6 c* g4 r
" a4 [8 E/ m, ]$ Q
' m8 h+ J( H% b; C7 e% B; V
9 C" I- S$ H4 L# u5 G8 chres = CoSetProxyBlanket(5 |/ I. m& }7 i7 W6 ]
Q% _- d% j2 t8 U5 u$ c4 M6 o) C1 i" j8 p- H) _" _6 e( R0 a' O- t9 S3 t
pSvc," j7 o( x4 y' z4 e6 a. j" q: F3 N$ x
// Indicates the proxy to set: L' N5 S( ]& B$ z
# D; v+ V& C. F* M% A" O, H& \3 h$ V/ e$ Q6 W$ o5 K9 E
RPC_C_AUTHN_WINNT,# d8 K# m9 T% n; F" [
// RPC_C_AUTHN_xxx
7 m; [( Z: n1 ~: C
$ p! E5 M( s6 g1 b+ L. P. a2 L" }, i" g, i! G& [6 O J/ l, l
RPC_C_AUTHZ_NONE,! M& `+ x. Z. j( V
// RPC_C_AUTHZ_xxx) ~# I& Z: Y2 ?
! m. u) Y' z1 J) ?' d' c+ i+ Z, L0 r' X s: z$ g
NULL,
1 }" Y) V; U3 m P n
5 f" D9 t3 \* L1 o5 u0 Y2 \// Server principal name
0 k; G3 k+ C. U' U' h6 l. I6 H! Z$ a" d1 h- ]/ l
) O1 F9 `5 ^0 E7 Z7 ARPC_C_AUTHN_LEVEL_CALL,' \7 O( V# {$ S5 }" m: @' H: X
// RPC_C_AUTHN_LEVEL_xxx ; G- i# z& G7 a' n+ }$ m5 h2 M
' a5 B1 z. z; q. E
. E9 g. ^9 f( V
RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx3 W3 q! d0 I' `) Z
8 U h: L3 ]8 @0 H* ?0 B
. u- p5 B% Q3 H6 T4 M0 Z. o( k( DNULL,
0 a) I0 }7 Z1 [& e Q// client identity7 p; f5 C, f( n! l1 t4 {$ n' R6 V
) `3 y; s7 B g# G3 S% F( A, A# Z& E: d- R0 G
EOAC_NONE
: t& I+ W3 O* n% H8 A// proxy capabilities ( Y0 f3 { V$ y& z6 ~
: |, U7 P" E& p/ ?( q
: I% K' o- d& t8 r);. b8 r7 F8 d3 _; |0 r
( L# f! U i/ o/ I7 U
! G$ C5 b' V2 K* |1 E- C7 u! l
: E2 x- z# P1 m3 T9 Rif (FAILED(hres))# ]+ u! p0 y k" b
3 W+ O" ~3 T( K3 p3 b* x3 u
9 @: Y5 y3 ]; u ]9 t5 X{& k# B7 r9 P! ^3 f
! T6 a4 i# T8 H$ J5 M1 a; v0 A
9 l8 c( B' a v$ A- m- i3 ccout << "Could not set proxy blanket. Error code = 0x" * Y3 p5 q6 n; R7 h& [3 a
# F* Y- p1 O5 b2 i* X
4 a" o6 ? u& E' r5 @$ {8 T<< hex << hres << endl;, I" H/ f" A( B2 u' e" f2 ]- h% G
( D% K6 R2 v. ^1 u
- y8 _0 G; u6 t3 F
pSvc->Release();
5 E+ C P/ t. X; ~( t1 @% [9 n9 o; F0 b
* o0 ?7 d2 j6 v! U7 M8 w, n# M- QpLoc->Release();1 H7 B# y& y3 P9 d, u5 x. v1 R7 K& o
* t! V3 y2 Z0 \" h; x3 G( n
+ S( u+ K0 z+ R& U- f
' {4 S( w0 I( z; A
CoUninitialize();3 g9 h; T8 q9 i" E( c9 d* m
* E \" j2 r% X
q* k$ X4 |# X( _. x' Jreturn ;( ~3 `# F1 d+ s4 S7 a7 z, D
// Program has failed.
* G' X/ q% P- |7 L% P6 E5 Y$ r* [, a: e6 `* O# g
. }7 U5 [8 ] z T% v! q}
9 T- V! u. x" N$ _5 \$ V
) M$ K3 y8 C9 P
9 I. D% j: C& I# d( V- R8 y3 D5 l9 Y0 A/ T2 P
// Step 6: --------------------------------------------------
7 _- }8 Y7 B( f' z, k
) E9 b1 h% f1 }0 G& [1 U( W* @. {$ L4 ?* ]$ a4 I6 |
// Use the IWbemServices pointer to make requests of WMI ----
" ~8 G! m5 P$ `* k
# k2 ] C# g. d- u+ t! v2 U m1 t8 C, o
' i% v0 c: K! i
// For example, get the name of the operating system
3 m6 n- ?1 d( c7 @# A! C4 K# @! U
3 B5 K. Q& f; C" z" x3 Q' X0 ^: g3 e' s, {0 X
IEnumWbemClassObject* pEnumerator = NULL;
3 q6 w, J: _" ?& Y
9 O& t$ C/ M, W: F# H' y. P$ ?/ F. ?
$ ?. C( W3 W- n6 k! W8 c4 }hres = pSvc->ExecQuery(- Z; E% ]: f. ]! l6 ^
* C9 `1 W3 D2 h
( p4 z' g T! s" @- J
bstr_t("WQL"), - `$ X' \% v+ n# ~; u% F+ k' n
. \/ c( T1 A; n2 {" s6 j% L8 }/ A
bstr_t("SELECT * FROM MSI_System"),! K$ z1 a* Q: V3 `, p6 Y* \8 Y
, y6 S: r3 W5 v4 k" t6 S& _# D+ L! A
3 |) @3 V6 _2 R
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
6 h# s! D& C' w0 ?
1 P% v% H- Y( P
2 Z( E& g8 F% n2 n) w+ f' K4 C' ^NULL,5 ~; p2 w: ~: X4 L. b. h. Z
4 A1 ] ~# m' D. v, g- y! d& E
% d$ E/ W' {1 E! ?# c C1 u0 ?1 u
&pEnumerator);
1 m ?) U' p% R6 w
2 ^, F8 f0 m! V( G" H) u" v& H7 F7 C* V) d
0 @; e! d1 _: k5 L# I8 R* f1 _
. b7 C6 @6 y6 I8 k/ [7 ^
if (FAILED(hres))9 f% \1 M! u0 ]5 ^+ \* u1 V/ l
2 F1 r" s K& x. D- h( h+ y
( k& F3 G/ j: S# F. y. p$ N{3 ?# Y2 Z. r8 m+ q0 u
1 ]% x2 a* w) T9 j; w4 R
+ A7 ? z7 A' B" {cout << "Query for operating system name failed."/ t: a; n( L" a- [0 k# o' ^
# P0 T" W" H. X6 D1 t9 U5 H( H2 r
<< " Error code = 0x"
7 A$ n5 C `2 y( ^1 q
& P# l. o2 G! Y4 z$ ?; r, e& q* G6 G# [
<< hex << hres << endl;
9 E1 r; |5 L; G" v7 s% c, @+ J1 E% k) S) G/ ?1 D
9 z7 _1 v, j) B' npSvc->Release();
3 z8 C& E' u6 j ?$ A7 a( V
$ W7 V5 O- t9 P0 r0 G/ I) b$ N3 h6 l* P; }. ?
pLoc->Release();
+ j+ K9 ?. O0 h
# Z& D- K4 K% X; y* F
4 k4 u2 I* R& q) G! ECoUninitialize();4 } h# M2 o: g+ I% Q
; m7 h" ~( W9 A) o; e5 R% u" j( g2 B$ `) Q+ @, T9 E
return;
6 V% L% p% k+ z7 ~6 l9 x0 W
' o- o p; m! }5 P// Program has failed.* [, h0 f8 d% s% }2 J
0 I$ y: o" V# R8 ^3 h7 h6 d
. t/ E$ K( j" t
}. r$ x4 _. V. I! M, c$ f# H
9 W5 Z* G' w& x+ f/ y" }/ Z
4 o$ j# c! @. l. P
% G6 g7 W! t7 G7 o- z9 {. C// Step 7: -------------------------------------------------( d! ^1 i9 P$ e& w, d& B% e' g# [( l
3 C5 L" Y! H9 L2 ^
( A x! z# Y' a+ G* k. @! t// Get the data from the query in step 6 -------------------
4 f- z3 W& j1 t& t
+ t- U, \) \& p- \' A7 l# K/ H9 |: \0 S
2 a5 j7 ]- z6 {' W; F' ^$ r
4 A( x3 F' r: c% m* IIWbemClassObject *pclsObj; n* v6 |; R! H, }* K/ `% D: X8 g
4 s$ E1 V4 H+ o. y! b
+ y- U8 @4 f$ BULONG uReturn = 0;9 Q2 L' k7 j2 [
$ L/ ?" g6 ~$ ]. x
" ]* {! d$ A( I Y- U& V7 Oint count = 0;' a, ]6 y0 e, o7 Z& ?& [5 A4 k
4 A- k( F$ m6 P4 L& G+ }2 x
6 o" i+ O2 ]3 h. ~0 l5 x; n$ ?" dwhile (pEnumerator)- @8 b& c1 W( y- N/ P$ A1 z% b/ Z
# Z: n' ]: E1 }; \
6 G8 c3 V! B% m9 R$ Z{, _. ~6 G* d0 S: U
( w; U5 v2 b3 e9 w2 q( U
" z+ x* I. q0 v* o2 \% X4 S7 O1 G6 a x1 R$ V
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, 7 [& N$ R M7 f8 [4 i
8 |2 T$ q/ V0 V( [
6 G0 v) u- f+ |/ V1 v9 K' G2 E+ O9 I; I. m
&pclsObj, &uReturn);
8 ? w5 M8 Z7 ]" ]2 i3 p, u3 Z+ ~1 E( e5 M+ Z+ n, K
$ u! Q# T- n/ y- h/ t& z) ^
S a1 O P$ l/ P) j) |/ ?6 ]6 B U
if(0 == uReturn)
! p& N5 f+ R( |* k& W c% r
0 u: W; j/ ^& w. L/ E9 ?
6 f- v7 @4 q5 m; U6 O' f' U, [( h/ `
' B( B2 |3 K" _9 r{
. \; @! w1 i i; \$ G6 n3 r& w1 X
/ u5 W/ t' S, J
! ^8 N9 ~+ a/ Z5 a1 u- T+ `& v5 S' @) X$ z
break;# ^9 c f! l( B) K8 W/ O) S5 M
& G* h0 A7 W0 l
& R) }% O+ O8 h- }3 @
; D8 W7 x$ O2 k8 y2 V3 ]
}
1 [' B8 R3 E" |) I. k3 |$ w4 W) E+ k1 c$ G& o1 C! b* J
if(++count == 3)
I7 M9 H" X! K- a( p1 o1 X% T% u% P' ~, M B/ P
{
; `7 F* A- `3 b2 @! ~/ L
\ s: W- _. F( i* D1 xCString tmp;/ K# L' `) i, v% G9 E4 w3 p
; S6 Q& K' ?0 R& ^ k% t- v* Gtmp.Format(_T("%d"),seconds);
0 ]9 [" M4 i' Q3 B2 k; F
2 o, [8 N# w3 a
/ v9 c, U( t n0 U1 [5 p( R) t. d// Set up the property value.7 K; L% h3 h+ D
& R% p4 Q R0 x, ?$ m
VARIANT v; 8 k& C6 H5 j+ `9 K$ p6 Y4 h, V
/ x4 k1 I1 Y& \7 B
VariantInit(&v);
1 b9 X1 @, e7 }6 N8 p* W2 S4 i( x. k! H6 s# J( c/ ?
V_VT(&v) = VT_BSTR;& C, R) `7 M0 _$ X d) h
/ }' k/ z0 d( z4 YV_BSTR(&v) = tmp.AllocSysString(); // - decimal format, not hex
3 G' N, ]8 L4 P. C0 }0 I0 x; C: Q( Z( x# v; q+ E' G1 q
0 F( s- [1 B$ B1 i( w) Z* |% n) khr = pclsObj-> ut(L"System",0,&v,CIM_UINT8);
4 w l9 I+ x- j& W // Clean up.; a2 o/ \% I$ p/ s5 [
( l! q0 y5 Z" L- D1 v4 `9 ]VariantClear(&v);8 p+ T! s, J! x, y9 ? v
: y9 E4 V6 B1 Y c5 w+ i) E* {, ]! a
6 G v# Y m2 d$ {8 v if (hr == WBEM_E_ACCESS_DENIED)
- n. j& p% f) P
7 m3 |$ Q+ {. j{
; `" w; C; F1 j6 l: d |8 z8 W* _- w' N, Q* @6 V9 ^2 F3 K
printf("WBEM_E_ACCESS_DENIED\n");
& r" f- a. B& w2 [# X* K, s, [: ]) X7 x1 k% Z
// Processing to handle specific error code' P4 x' L4 w0 i! l6 Q7 k: t n
' ^' v7 h) C- Z6 q3 ~}/ o4 G7 P- i* F3 z. Z# Z
else if (hr == WBEM_S_DUPLICATE_OBJECTS)& ~, n1 Q4 P0 [3 y- A4 E
# f2 y& j3 C W{
1 ^% v( }0 @) N" ]/ R
4 e# r' c! ^( v$ b5 @/ hprintf("WBEM_S_DUPLICATE_OBJECTS\n");
# s8 h% o1 N5 ` // All other cases, including errors specific to COM
4 Q& L p* t. j6 l$ H
- {& q+ \9 p7 X1 n$ J& f `% Q}4 B$ H0 j( l2 j' d" n
else if (hr == WBEM_E_INVALID_OBJECT)4 U2 U# u: v% ]! T P- Q
2 S) F) j9 Z$ `3 l& g
{. h8 V" {$ Q; B# a2 n6 [8 R
7 L1 }% n( i4 E8 R6 ?" ?( V! v
printf("WBEM_E_INVALID_OBJECT\n");
4 ], m2 G( b3 F" f0 ?7 G( D
. e, B& j& m8 z1 U}
1 J5 G: D% P8 m1 ~7 N# L4 S else if(hr == WBEM_E_INVALID_PARAMETER)
) `8 @) j1 B o! d ?
0 F: y! Y2 \) L{
4 p" D; e% J% U1 \/ G' ]( A9 u
5 ~! c* b- \4 f7 P% Q6 xprintf("WBEM_E_INVALID_PARAMETER\n");+ t7 P; p* [4 c! ?7 D& O5 r
/ q/ C6 x P- H7 S" H}
1 c0 k: }; ]5 c; s else if(hr == WBEM_S_NO_ERROR)! S8 R* D4 u5 x0 u1 `. d- ?
3 I! C4 H. t+ |# j' M+ S0 K$ i
{4 T8 C6 ]& U! l: F- o
( l% R& N" k. t. D0 s8 G- a- h
printf("WBEM_S_NO_ERROR\n");
6 o7 p" F! p9 w: H* k. I" I/ P) e3 c3 b
}) [6 H& m. {. M. l! }0 G" }+ ~8 |
else
8 C, f, H$ c& i* f: X7 J0 |0 `
printf("ERROR:%x",hr);) X/ m1 I+ Y- s
8 h0 P' I8 e* x
. S8 I8 A1 ]0 f! l# v( h
HRESULT hRes = pSvc-> utInstance(pclsObj,WBEM_FLAG_CREATE_OR_UPDATE,0,0);
5 l& g3 S8 X5 }# d- A# r8 @1 o$ ]
0 g0 f3 v" l+ S; g0 e3 |: q
' M$ p- s' n+ q9 t' }7 ^2 m // Check for specific error and status codes.
6 R8 w" j- S% L7 Q if (hRes == WBEM_E_ACCESS_DENIED)2 b3 F" @6 N F, e
; a2 H4 m/ W- I# N6 O1 R{* K# n& v6 b9 \( S
2 ]1 ~- Z/ Z* Z. N* P( g
printf("WBEM_E_ACCESS_DENIED\n");
" u4 l9 k3 v) j0 }# A0 N; Y* O. @) E y3 E: j( x4 S( n
// Processing to handle specific error code
. C0 J& J. V) b F& `2 Q
, s& n3 Y1 g* {7 \8 v+ W}- e5 Y& i9 v& ?! {, T
else if (hRes == WBEM_S_DUPLICATE_OBJECTS)& V x* ]( \2 G) |- ^# u6 ]
8 w0 n# w5 Z2 l* s
{ E @# S1 n# v. _
+ z9 ]' n9 y2 q& w" _8 c, r A
printf("WBEM_S_DUPLICATE_OBJECTS\n");
, Y. z7 D8 A& D: @0 d+ A% ^0 w8 e* k // All other cases, including errors specific to COM
/ s3 M& A, t B% X5 [+ u1 |7 |! ^
* [- F2 c M5 |}
7 \& v9 x5 B+ y; m/ I7 y$ o else if (hRes == WBEM_E_INVALID_OBJECT)
6 R" N: `8 ? f& s3 R( r& B& j8 ?! H) Y) P% |
{
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8 F! A! G, h) x4 ]: k$ aprintf("WBEM_E_INVALID_OBJECT\n");9 T; {5 N2 B$ l+ X' Z, G+ X/ o
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else if(hRes == WBEM_E_INVALID_PARAMETER)
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printf("WBEM_E_INVALID_PARAMETER\n");5 d4 F+ `$ Y0 h3 P) K
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}
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printf("WBEM_S_NO_ERROR\n");
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}
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}
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; q( L; z( [0 Y( A! w, ?pSvc->Release();
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pLoc->Release();
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& e$ R1 L$ D; c4 O( b Y4 a$ \pEnumerator->Release();
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- d8 r5 Z/ n3 V* Q4 Y* DpclsObj->Release();2 ?* R) E1 R( L! ~; s, n* q
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CoUninitialize();
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{5 Q0 S! t* _ |以上就是该程序实现的全部过程,完整的source code可以在附件下载。S5 wake up使用了WMI ACPI,5 P& K7 s# k4 o G
该部分比较复杂,我在后续会发一个WMIACPI的系列,完整的描述WMI ACPI实现过程中
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H2 n) @- c0 A' ~+ [BIOS,EC,OS,Driver分别扮演的角色。
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that's all!
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Peter * B( X$ ]4 X; S! ]* O: z
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[ 本帖最后由 peterhu 于 2009-6-3 14:25 编辑 ] |
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