|
S3/S4/S5 Long Run Test
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1 @( B6 N# G- k# E2 {1. Why need it?
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NB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。; _% m" g T% L; Y9 f
" f9 R' I# D v$ C- V4 \2. How to implement?' p, M: P3 X" x, J
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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。
$ O1 }. G; U( ~2 f# r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; i- p! x1 U! R
+ z( p. d8 p7 q) c* Jvista下无法唤醒L。下S3/S4是通下述代码实现的:. o, n, X. n/ x/ B4 z4 S9 g5 S
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//hibernate and standby, m1 w4 _# X ]3 G3 [+ W
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CAutoPowerOnShutdownDlg::SetPower(BOOL2 u) p' p; A8 d. c$ ~3 k7 G
bSuspend,BOOL2 l8 b% P. q, C S5 v) D5 r4 d6 w
bForce)
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TOKEN_PRIVILEGES5 r% @: `5 c$ c; Q* {
tp;
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I: H$ Y( A" _1 ?1 hHANDLE
2 x: V2 K" s/ ^ Q6 \hToken;
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, P+ ]5 A3 O# y0 o' jLUID: ?' |/ C' |3 F" u# X
luid;
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LPTSTR( I' l- A/ R( }; f0 T0 [
MachineName=NULL;
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if(!OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES,&hToken, N, D+ G% ~6 q
))
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return
) |3 L/ P3 ^6 jRTN_ERROR;
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if(!LookupPrivilegeValue(MachineName,
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8 P4 E/ b0 k6 q: ~&luid))
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, G1 e2 ^' M$ Q: w6 w{" ^3 i- r6 \3 n8 G) w
/ U" q& h# k9 D& a S' S6 A! e P return: M( Q8 Q- S* J1 x: _
RTN_ERROR; ' q7 V: s- b* Z6 l: b+ T1 G
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: [. }+ ?" a2 N% H6 K' Etp.PrivilegeCount" p/ W, B( i$ Z( k$ E/ h1 S5 h
=
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tp.Privileges[0].Luid$ o' d& j8 j2 g$ C8 M
=
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/ L6 A8 C8 @' k j9 X4 ztp.Privileges[0].Attributes( a3 P$ Q/ V2 I/ S1 F
=
+ n. M# ~9 f3 j! O! ?! J* \SE_PRIVILEGE_ENABLED;1 r1 A9 i0 H. k
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# M) r: h1 R7 V& S" r9 a1 X0 TAdjustTokenPrivileges(hToken,
1 y6 ?0 P1 p. h( ZFALSE,: [- r) |7 @4 \3 S1 v
&tp,4 v& v% k1 T8 H. m5 i
sizeof(TOKEN_PRIVILEGES),NULL,
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4 ]& ]1 m# h# h1 i' _5 f/ ?NULL
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& n: [& z5 F; ISetSystemPowerState(bSuspend,bForce);
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return! Q- r5 x! }! k' ~: Y
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G5 \8 a6 M1 `% |1 ^S3/S4 wake up function是通过在下去的时候设置一个WaitableTimer实
1 b2 e: D' O6 e# D现唤醒的功能代码如下所示:% J5 E0 y4 C+ C( F
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case
! e7 G, X- y4 FPBT_APMSUSPEND:
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HANDLE hTimer=::CreateWaitableTimer(NULL,TRUE,CString(_T("WaitForResume")));% L/ n! G7 f1 x8 ]8 z
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if(!hTimer)+ l @1 \' I z* V# H
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{
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MessageBox(CString(_T("Fail2 F4 `3 T7 b7 b) ]! e; s K
to [( o0 V- \9 C4 m5 V
create
# R0 [* v( [4 b* \4 Cwaitable
3 V& a0 M) F/ |9 ^1 Stimer!")));
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: t+ ~% ^" F+ l4 Y. D, N3 _hTimer=OpenWaitableTimer(TIMER_ALL_ACCESS,TRUE,CString(_T("WaitForResume")));8 \# U7 p! j% Q) w$ F0 x/ O8 C
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9 M* U9 n' V a3 hLARGE_INTEGER
7 @1 i6 l: A, k, @liDueTime;
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7 I3 ]/ a6 c! O5 s6 \2 nliDueTime.QuadPart=m_DlInf.m_TimeSnd *1000*1000*(-10);1 ?+ D3 F; E. ]0 n, Z# w. ^
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if(!::SetWaitableTimer(hTimer,&liDueTime,0,NULL,NULL,TRUE))3 {% ]" D) _! r8 O# m. h
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8 w0 g, Y3 o7 E" OMessageBox(CString(_T("Fail H/ L( M$ P8 y4 ]0 Z
to
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waitable
2 j6 e- Z, e+ O% B0 S6 b Qtimer!")));' ^" `: ]% [' I" o7 m3 _
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break;* S% z- j4 X/ Z5 J) H$ E3 a
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}
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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
) [. {( M$ w& p" ]9 I0 v心的部分就是同连接到我们定制的WMI class MSI_System,然后通过' f- O5 R) N) Y( I. e
HRESULT PutInstance($ P2 [9 ?6 y* `% F
[in]
$ N1 x. A6 G; H3 k9 B' Y! rIWbemClassObject* pInst,
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LONG lFlags,9 o8 p4 g. t/ [0 [
[in]
6 X' p( H% K/ w: b: [, \9 vIWbemContext* pCtx,3 ~' n" x* | t0 ?
[out]2 q4 C) H% }# e2 @2 E: y7 b K) 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" w, h1 ]6 U0 {4 ]. E, B
中的特定位置,这样就会改变EC ram中的值了。2 X* r2 R) q: E
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void CAutoPowerOnShutdownDlg::SetS4WakeTimer(unsigned char seconds)5 W0 a3 K: A( b# ~1 A% o
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$ o8 K+ y# C, ]; u- b: ]! rHRESULT hres;
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// Step 1: --------------------------------------------------
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3 b& Q3 I4 Z; T. b// Initialize COM. ------------------------------------------
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hres =
$ V; j: X( ?3 e6 ]; _. \ OCoInitializeEx(0, COINIT_MULTITHREADED); ) V) k# E/ N* n
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5 j; _, [4 ]* y" a$ bif (FAILED(hres))
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cout << "Failed to initialize COM library. Error code = 0x"
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2 u1 d2 |. m: D% `6 X! }<< hex << hres << endl;1 ^7 ~6 R- z8 y4 S
return;
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' ]& F' I4 F5 w( P! n// Step 2: --------------------------------------------------! H* E; K# m0 ^6 X4 @
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// Set general COM security levels --------------------------6 h; G2 O' f2 S1 v$ A
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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 using
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. f6 B4 u- ? ?( A: m# j// a SOLE_AUTHENTICATION_LIST structure in the pAuthList ----
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// parameter of CoInitializeSecurity ------------------------
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hres =
4 L3 U& g7 q! {, ]' R1 b9 j0 }CoInitializeSecurity(
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NULL,
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// COM authentication4 T$ r0 r$ c8 J9 q# ~; T' E, h" n( T
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NULL,& p6 D+ p5 F1 D+ T4 @
// Authentication services$ u- S! ~2 I: a# l$ g
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// Reserved; [6 ?* N! v, Z
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" [/ t/ |+ ]. R( D: ~RPC_C_AUTHN_LEVEL_DEFAULT,9 n; E0 N" i4 L B" u7 n
// Default authentication . i: q- @% `. \1 _" i
5 \* {: B5 Y$ c, ^ y
8 S) [! I$ a, w' I4 RRPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation
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Q9 E% }/ N/ V2 Z" k# d eNULL,
. A; y( t! P9 n; A% G7 o0 n4 [& a// Authentication info" @! g, V+ m7 q1 ?, G: y H( h! ?
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EOAC_NONE,
6 D1 @0 I1 _4 ]4 j// Additional capabilities
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; k0 }( ]( x# J. Q \* SNULL
! x& d( k$ h: A6 T// Reserved
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if (FAILED(hres))
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{
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cout << "Failed to initialize security. Error code = 0x" 7 f2 {+ Z; ~, [$ N. ^5 Q! s
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<< hex << hres << endl;8 Q! L* s, P. g" @
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+ i( o# s6 E1 _) VCoUninitialize();
- `% g; z( ~! Y, C7 s4 P- y return;
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// Step 3: ---------------------------------------------------9 k7 b2 q" q# b i$ V
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// Obtain the initial locator to WMI -------------------------; B# D/ }: A8 _) P! K0 ~
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2 v: F6 U1 P7 l5 m0 X2 yIWbemLocator *pLoc = NULL;
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hres = CoCreateInstance(
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; V. I+ M4 i0 p$ y8 _. ~CLSID_WbemLocator,
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CLSCTX_INPROC_SERVER,
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IID_IWbemLocator, (LPVOID *) &pLoc);# V. \. ^9 B- k5 R' B' @
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if (FAILED(hres))
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0 V5 V2 [8 n P5 A# N
0 d5 o" X) [8 _+ l3 D. m+ m9 zcout << "Failed to create IWbemLocator object."
* g4 r- u j2 p( a& m+ y& h* o" D2 I+ l: i$ H5 e& i, }
: ` T% ^8 q0 j, i4 M- ~<< " Err code = 0x"8 k9 m- m5 p6 _! f2 y7 W
8 A1 `4 i' r, u; C+ K3 g9 m
: \# F: z1 t" P& Y0 j<< hex << hres << endl;
8 C0 q' K5 t( U6 n7 m. T
4 O- b5 r! F p/ P& D; V; {9 J" g! x% N' ?8 M5 a: ?2 T
CoUninitialize();3 d" u6 @) G( h! J
& \* D+ M+ ~* M% e% i0 Q
0 D" g2 m8 @( }; h9 `9 D4 Lreturn ;
& C O1 ~2 {, A8 X$ [2 K6 y// Program has failed., d4 H9 v, C/ j
" T/ i D' b: k7 i" I; h1 P
2 R9 f$ c) u7 u( r' z}
8 `. e5 T( c: C/ e1 h- R, Q7 _4 o& ^2 N7 A) S# I
3 \4 c, |$ r* C6 ?3 e' J% G, j
$ K$ e5 O1 Q. x4 V' m! Y, b// Step 4: -----------------------------------------------------
/ @) y/ t2 b" T* K9 \$ O
0 {" l5 I9 U6 J/ _' {" h# [6 K( Y7 k0 h5 Y' K
/ \) F0 v0 _4 Q7 G& ^// Connect to WMI through the IWbemLocator::ConnectServer method2 L* {8 a# C7 n# z! M
. a7 A2 V% P9 O: B$ m$ h# v7 y, t5 ?7 ]9 P6 f
+ {; a, q' O3 L3 X" {* x& F8 ?( QIWbemServices *pSvc = NULL;
( m, T$ m6 y5 o: u% B r# V* F1 O9 s% s* P
+ F4 [, {/ |5 C H7 }' {* v+ _% L9 m6 r
3 @3 u' }+ u3 U) |
// Connect to the root\cimv2 namespace with% X' x7 H3 R9 C" u, Y
9 C/ g# x! I" { l$ L/ W# t9 O' u
* N h' ?! e4 c% K// the current user and obtain pointer pSvc& }% v! i/ k: k Z
D9 G4 ~2 U6 C
6 M( M. O5 g5 M! b4 B// to make IWbemServices calls.
# A. L9 u/ w: Z5 |7 F+ g- J% ]- w) M2 H
p; N$ x+ _0 ^) x( E" n( X
hres = pLoc->ConnectServer(
# h Y# d8 x* N
' }: X4 H* o0 ~7 X) u: ^7 J7 S% R/ _/ o1 L8 z! I
_bstr_t(L"ROOT\\WMI"), // Object path of WMI namespace: c0 [: D: g U$ n; G& `
{$ }4 E& g3 Q& f- k9 x4 I! Y9 ?& o: _+ o
NULL,
: s' r Q% m/ A8 c7 e1 T// User name. NULL = current user: n! m$ j: x; ?% I' P0 L
2 D+ j/ y- a7 T4 _! \: k1 O
3 g0 U! ` ]4 oNULL,1 Z1 U1 p6 J' q- ]0 E" X
// User password. NULL = current* l" {, k/ B0 y" l# ]
4 y4 T6 {9 o {$ z
# ^& ?3 Y& e9 i9 D, y" E0,+ s( _: Z! w, s
// Locale. NULL indicates current. h6 Q" @/ c% h" p
( ^7 f+ [& h4 }* s, ]; c$ _% s4 G( j( Z6 k
NULL,
$ i% F. E/ D+ u! P1 _1 C// Security flags.7 y: i5 u; o0 U% T0 [5 d ]& V3 T
1 A6 L2 A# i) e# k4 _; o: _% m0 h' t
) }% s% s! K$ i- r( `
0,* }/ B( J/ h2 j# D& J+ w
// Authority (e.g. Kerberos)
7 M: V, y1 I/ z; J$ T8 z' ~5 M- h& W+ _* U0 \' `4 m3 a* ^0 r3 D
5 ^% U* N+ H0 J7 w' i' k
0,
/ {7 x! t5 X! T ^' V1 `( {" m// Context object ( W, W$ h: x( V5 o3 `
4 ~8 u! Y' c V" ?! y3 K8 l
* L, a- @# E6 {- R
&pSvc
) {! `: d. r% k2 c* ?3 E// pointer to IWbemServices proxy
& b. J; k+ j* U) f. r; h* L% `4 F& y% J( D/ A
, a6 @3 X U- `4 M/ ]$ ^2 S; M8 J5 e4 Z);
6 z6 T1 ?2 `$ ?0 ~2 j0 {& F# Q
- d1 g6 u; n0 M2 V8 v+ {- m b. ?% b) E* ~
/ x) O9 T n, V9 c) \- w! J
. N* X& Z0 M1 g8 p& V# _/ fif (FAILED(hres))
$ H* P/ A, {5 Q$ C6 A6 _( k# C4 E
) w# `7 Y) B" h1 o4 H: a/ V; z{
9 a$ q1 j" Q, F! I8 v4 o
7 I: G$ V$ f2 {4 L, z5 y# U! c" P7 r7 [; M2 s: N
cout << "Could not connect. Error code = 0x"
2 F, v4 l. I" ~1 l
! ~% E( n' \$ ^$ Q) v5 C
# F& i3 z, c* ~2 \ O: T<< hex << hres << endl;0 s- J9 t" e6 S" @7 z1 d
, x4 w% S* T/ h+ d7 U; L+ |" F" V" E, q3 K) q$ p
pLoc->Release();
* V. m! u/ ]' `7 x2 |
2 a k/ C# `5 {9 D& t, _( g$ m5 _0 K( R. j Q5 ^% _
$ C0 ?9 n( H. \3 w
CoUninitialize();
, B2 \; Z3 F$ V( n( K) l
3 P+ m, b6 R, B& S( Y0 Q0 A
+ q2 L, N( ^8 S3 Z2 O+ u0 R' r- ~0 A, l% I8 x
/ e4 R1 a9 F" g9 u1 W- Q! M, qreturn ;
/ t% m/ ]7 T8 b0 V3 K// Program has failed.
. R+ N. O6 L M" K& V6 K
! g8 T6 F# c9 Q" }; F) d2 J/ s1 S& P+ c5 U
}; a4 T0 |- Y5 P$ t% Y, {; u
9 j" N8 ? M* Q7 f$ R. y
8 x% K |( T8 v, Q! X
- l: {6 ^; r1 ^' K4 Jcout << "Connected to ROOT\\CIMV2 WMI namespace" << endl;
" ]' j& A( d6 A; B7 i8 R$ Z4 z; w i2 ~6 |7 l
2 C6 C% Z3 J# X" h4 {# Q2 w
) c. p7 M: K5 |. L H
7 }* _& l# z. u- U9 j// Step 5: --------------------------------------------------' E$ K4 r1 z* X0 C
2 Q/ c$ R+ [: s& }; q! M; B! s5 {* C, F- M9 d
// Set security levels on the proxy -------------------------
; M0 G- N8 ?9 ^$ M t: p4 o
# U, h/ X; f, c5 s( _7 q; _( ^9 z S8 e. Q
6 C: u, _- b+ n$ V
hres = CoSetProxyBlanket(
+ H5 T& | z i% L* \' f% S! r, m2 X$ l. o
5 `7 I3 V' T& H0 k4 upSvc,3 h$ r5 l+ v- J$ l0 T
// Indicates the proxy to set0 c0 F1 U" h, z) ]$ Z9 L$ _
" D# ?, h n+ G* b# O, o8 M
; a1 h8 M& O/ I" j
RPC_C_AUTHN_WINNT,: \* U: C, V. M6 y
// RPC_C_AUTHN_xxx
; R/ H; S, F: p, G. i# U+ H1 f/ S/ l6 g) o7 ]
& h' F( P' P" p5 ~RPC_C_AUTHZ_NONE,
\/ q' L }& \7 h// RPC_C_AUTHZ_xxx
6 b% ]) f, m N! k( Z$ M" D+ a
9 [* w2 o1 T3 @: b5 j
9 }4 A. e, N( Q) d# z' ENULL,# g, U+ A0 l' `- w- r
. d' d3 P( J. o' J( x
// Server principal name 8 L6 h( |* f3 C, c# q( r
. R- N& s0 o5 v! f8 W
& F8 @( V: Z/ U0 ?* I5 _# Q- E2 ARPC_C_AUTHN_LEVEL_CALL,, {, |7 g+ n* |/ Z" h
// RPC_C_AUTHN_LEVEL_xxx
: Z& y' S+ G- i# {" z6 X: c+ h) W/ v% g9 m. |2 D; `3 ]
1 h- ?, F+ `% e! D' S: \5 O' \! aRPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx/ `3 H+ R$ Y0 t. d
N% `" e: B8 S5 {- g5 ^2 e, e( [# ]6 |: c+ Q
NULL,
Z0 C( i9 A, K6 C% \/ w// client identity
* t% m8 S1 X8 Q2 J
6 Z8 i# |# g5 z" {0 j, j0 L7 t3 M+ `# Y1 ^
EOAC_NONE# k7 H2 V# k$ H+ \2 k
// proxy capabilities % O) k/ H1 ^0 H# s. Z$ |+ M
9 S$ V1 W, h$ I
0 U" f* N& B4 K, G. g# a1 V7 a);
$ y& t& b# j$ C7 |6 G2 E8 T- I) y2 t( @" F d! K0 z
4 w k. e4 k5 i6 s; o/ }% Y
+ b1 ^* j, E4 I) S# k# L/ n, F
if (FAILED(hres))
; U- g# a- J1 r$ ]% r- a
- d" ^' D N$ g* k4 b. d# G `" @4 F; i! p' n/ z0 q3 F
{) ]# O5 k v1 R- ~* u5 b
$ n* e/ ]+ q3 `8 G/ {2 b+ f
& w) F) g5 a, b- @% `" {$ P
cout << "Could not set proxy blanket. Error code = 0x"
+ Z; w! d3 B3 h5 {* e
+ {7 l) g) x9 W. c+ c
5 t1 F; E# }! ]' Y5 m; }<< hex << hres << endl; w: `7 o6 L( T1 w# ~/ O' j
0 p& ^1 A8 I* c2 ?- U: P
' |, E. ?, o/ z2 u3 \8 Y
pSvc->Release();- T/ D* j: a; X" n5 d* l0 U; D
) G4 O Q5 ]% N
: N* [7 z- u0 n# U9 }5 F. c
pLoc->Release();1 ?$ \) M% R2 `# V
# G/ _, M6 S0 q' P7 ~ N
6 f$ z$ T! T v* D& h" W e$ d+ A+ v5 j% N. P8 L
CoUninitialize();2 ]" [0 z i3 ^, Q: ]
' o y# t* L. @$ j$ b$ g7 h* T. ?7 c1 I6 @! H' e/ W6 V
return ;
+ m, j# ] b- A: X% b// Program has failed.
. t: Q( ?; F! m- s
4 }+ S" K5 R% g2 ]
2 Q2 e1 ^: C" y7 i0 E4 B3 W! W}) m! H6 L/ }7 V+ i# l
# F; g+ S d1 Z+ p; I3 N
( R& Z/ z6 M8 V6 Y) Z+ n) i
% p+ |+ F; J j8 z0 w0 r9 ]// Step 6: --------------------------------------------------- B0 U0 I( ]; ]. V1 D* Y
7 o6 J$ R% S$ B- T$ B& A6 i3 C- v
1 F0 l' ^. z+ w, S/ C6 m) ^9 f
// Use the IWbemServices pointer to make requests of WMI ----* [3 {3 b/ F5 z& }2 a l
4 C) R; b. @ S! g
- ^- j9 w( R( D* R3 M# S
$ p0 E9 @7 K! q; Y6 K// For example, get the name of the operating system
! g3 X( Q& c7 R; x
: x$ I: V Q) f( a
' g/ k8 l# H) s1 w4 EIEnumWbemClassObject* pEnumerator = NULL;
2 Y5 k2 c& s6 A- j7 |0 d: ~) J% r
# e1 ?* W. G+ j6 H6 [
- a2 r* T$ H, ^# }2 H# ^; n
$ q, g. O9 N% {hres = pSvc->ExecQuery(+ i# g8 H q1 C" U% H. r5 A. G
) d1 l0 U% q/ z B+ e- \
$ }9 u+ d* ]# k% g$ Y; Fbstr_t("WQL"), ! V/ V r: m) V; N
' f1 l, H$ Q$ E8 s0 @# k, |$ S
* g0 x% [3 y h( m6 ^, y& r- j- B( f, Sbstr_t("SELECT * FROM MSI_System"),
9 Y- ?5 m+ Q- Y8 l$ c$ @* ~4 w) I" N. J6 n
6 a# u" o/ l! V. W* d* XWBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
) h5 x: A) L) X: T' d; Y
( I/ Y) ]2 [' H( X- Q; U5 t8 M) R, o# p8 O) K* I [
NULL,
7 F' o& t$ f; d7 w4 E" v7 p. K, r8 G4 t6 ?: C- |
* x, c* z+ r6 G/ N; C, }9 n&pEnumerator);
6 [1 X3 s/ w3 U4 w+ Z8 z/ B1 y# v. I. o1 \7 k
1 Q. J) |6 e6 X( C W; `. y4 v0 N
. P2 M# m+ F* d- l# D- r+ q0 i" t v) ^) p, u2 d. s
if (FAILED(hres))
6 H3 h9 w! I; z8 C% a ^% |
# q% W# _2 m: z& c8 p( X7 \& U' }' \1 n6 O9 `4 V4 W c% g
{
4 ]' p# ]2 g4 O9 S2 X0 ?0 ~& ~
& Q7 E! z% U9 Z1 q" v0 j* h
" q8 c/ D1 { D* U+ G8 |5 _2 ccout << "Query for operating system name failed."
7 n- V L& p4 m
5 p' V: F, M& Q% g0 M8 i P* S( D
<< " Error code = 0x" 0 |, A& G6 t l; n, D6 p4 U( x' b5 q
% G- M4 M" S+ o; g$ F* e. s1 j# C- w$ n# Q7 D4 R" V
<< hex << hres << endl;9 G( x6 D$ \8 p6 y/ H
7 f* p' X, ^# l# x$ y: T* a0 y
5 R# |9 R. v% m/ ]# O
pSvc->Release(); |2 b! Q7 G4 M" F9 ?: u! U9 ^
' z6 T4 Y7 L: E7 Y4 w2 Q9 {7 C& }* C) [# h5 w
pLoc->Release();
! V( W3 U& V! w5 j0 N+ _/ `) k# w, T" X% x+ z/ J1 u9 b
: q6 x8 f/ g% ^9 ?CoUninitialize();
K1 n7 D! a8 `! I. P, X# i% d
4 h' V0 A! U( Q1 f1 i$ U9 v) K/ T/ X& J$ A, D# ?! f1 b
return;
! u* ]# {) E; u" }9 A0 c4 c2 D, y: s N2 j1 `3 M
// Program has failed.- S& q/ {5 [/ O0 d6 T' ?& L5 V
+ e0 E9 ~9 W1 l* V
/ v+ W- t& V1 Y: h}3 ~: c8 N7 F! y* O( u
2 G% ]3 O+ V) r
# }8 ^2 u7 y* I' z1 k3 m9 P# C
% ]! ]0 @; L9 c; h9 h- x// Step 7: -------------------------------------------------# {1 f, C0 w; b/ P5 g) i# W
) _. t B9 _& `
! p5 M- v. K- W6 ]( W: v, \// Get the data from the query in step 6 -------------------
0 ?# C! V. A0 c% ^/ p2 I1 A! [/ a! H, c9 P
, n. m% A1 O4 {) s% R7 ]' P
! t" D( A3 Z% r% d! b$ `- B/ W
$ D: {- z0 F% K) W% B
IWbemClassObject *pclsObj;
# V* k$ M0 G# `( S1 m4 W) _7 L9 O. y m' X
) r$ R* q, a9 M CULONG uReturn = 0;
; h& @6 W" Q& y O- j/ s! O# j( p: T( s( \+ H1 @
# q! l$ g4 p# _
int count = 0;
* ~" m: _- E0 r5 z/ [/ c! j- R% w6 p
7 p( c$ S, A) |. y* f
while (pEnumerator)- n; ~; i; @% p
: D0 W0 L, h4 \( I
/ ?, z# n5 W9 i4 {2 R Q, P8 {8 p% g{6 D8 \6 Z s: E9 n
- {4 P7 O- q8 \7 g* Y
& G8 n6 \/ f1 I% e% j9 _0 {2 y6 @) A: z! {- n6 g# i2 m+ U+ {" b
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1,
7 }6 Y! Y3 `, n Z
8 W9 m, f4 c7 O4 S2 a5 c
! C2 \) x% e( N
; ^, E' i7 G+ D" i5 r$ b&pclsObj, &uReturn);
+ l2 y4 n- ~9 O* ^
) ~; r4 ~$ g/ r: |% l' G
; X: Z" E6 j' f! i- Y1 \+ O
' `$ X! R$ r' r5 T3 j
. w# i) f3 i" `, wif(0 == uReturn)0 s" o3 `/ n% D+ l( T
! P4 o, {' M! _9 L1 P7 C
' E9 a8 R$ W0 [& ?; \9 @7 b5 b; |1 g6 ~& g6 y1 n0 u
{7 U( n3 A1 O- b+ O; Q: d* I
$ U* H( ]; L1 z* {8 v
7 y/ G9 n& V& P: i8 p, g7 }; Q4 [" a% J+ i9 b5 q$ _( Q
break;' ^ b, @* P* C1 G
% K+ a& c5 B2 L ~- _. ~
% k$ F1 A1 M" u p* l8 F# y
6 ]/ ` H( m( m6 F! ~+ d, L
}
: |$ U" k. n# T4 c5 v7 i) W- w+ M* d; o4 k, c" n/ |% T
if(++count == 3)/ n7 |, P- a% {. e& ^$ Q; t
- [3 i( w1 r8 n4 h# Q0 f" M
{/ ^4 X% O. U5 h ]
, I9 j& J; Z- X
CString tmp;
9 q' P' k, L& {# ]: P$ O1 H) \) A& Z0 w+ D2 r% R# c3 H8 m
tmp.Format(_T("%d"),seconds);
; B2 F9 ^+ O! Q* n% p. ~; K9 A% `, H$ q7 W. ^
' y5 K+ E/ v- B$ d% A
// Set up the property value.
6 _& }9 s! @& `0 X) O3 e- t, M* W3 W( J! y# T
VARIANT v; - x- S/ W- w+ S. o, r/ ]
$ j8 c9 D6 `8 ]; IVariantInit(&v);: u1 |$ S/ e8 f! ~; k
1 s* F, v+ c/ H7 K8 f. M
V_VT(&v) = VT_BSTR;
$ K8 v! t7 v, \, A
7 J1 U) P! Y w! ^, T' A: e) xV_BSTR(&v) = tmp.AllocSysString(); // - decimal format, not hex
a5 p9 ]/ Z: d& \, j
" F% U6 ?7 B! B2 v9 `7 J7 |
" W* ~' u& E2 Khr = pclsObj->ut(L"System",0,&v,CIM_UINT8);
+ Q; p3 C1 m, F- D9 q: B9 v // Clean up.' a' W3 R* f$ ^% e- T
8 R8 Y7 I; c, M4 n' wVariantClear(&v);2 {( c5 E8 d/ l
* M6 a5 ]+ w8 n3 z# Y( X$ W7 Q
' r4 Y* W+ T1 [* R0 L/ U! L6 K' B } if (hr == WBEM_E_ACCESS_DENIED)/ @3 ? X, [0 q8 X
6 \) N2 y7 q& H0 ^! M% p; E{8 G; Z0 ?/ {9 n/ ~1 X
1 a0 Z% c1 L% f6 K" S' D
printf("WBEM_E_ACCESS_DENIED\n");- E6 n! [/ G8 e4 N1 ^
9 E+ G! P1 D* o& h! g* B% [% r
// Processing to handle specific error code
$ W7 {" k# I" Q3 C! d4 y' D; I$ E. D
}
: ?2 k L/ m' T else if (hr == WBEM_S_DUPLICATE_OBJECTS)
5 r6 m4 R% m5 x7 W0 V' E' h
* I F/ R9 O# ]) K0 A3 a u6 q{: n% @* c U# K& h& x7 V% H! d% w) l [
7 y& ^9 X* y' X- {$ Z
printf("WBEM_S_DUPLICATE_OBJECTS\n");5 [! Y$ f; `* I' s+ |9 X* r2 O
// All other cases, including errors specific to COM1 b Y G3 D+ _9 r! t
' h; F) u( @: k3 a
}
; ^( q9 j4 S/ P6 }- b else if (hr == WBEM_E_INVALID_OBJECT)' `) ^# h% t) j, a
& S- G8 C) A- [9 T. _9 x{4 w9 p7 k8 R# e( l7 k. x! x
% J! `9 g2 u; V& u; @printf("WBEM_E_INVALID_OBJECT\n");0 J! p2 H0 v X( y% z9 E3 ?
+ {5 b! M1 `* D3 e) c# @: P}6 _ B3 t; T; \7 F
else if(hr == WBEM_E_INVALID_PARAMETER)8 ^6 h- n; I4 q g" v9 x G$ Q: ?
) o6 n$ u& G8 l y5 @{" I0 U. m5 i% W# M. w; m, k
" o5 c3 n" m1 ]3 `. ^1 n: Kprintf("WBEM_E_INVALID_PARAMETER\n");
7 U' S/ O: p& p
6 K) k2 u4 J& t' A* R}
- m& V. o. T- L3 T6 i A else if(hr == WBEM_S_NO_ERROR)0 c1 G7 y" _% O% ?$ U
; k* f9 i* ?3 ~{
0 l E$ e8 E1 U* `$ o
! f7 H6 r" Q3 q# } hprintf("WBEM_S_NO_ERROR\n");' e7 O0 Z& O$ s: p$ |2 U; N7 A: }
6 F7 n, w% T# _! o, ^}+ N3 I' f! w* [' ]: k/ U2 g
else ) v3 B4 _' Y/ L# n7 a( ^
' S" H! S+ h4 ?# T8 M& E( j
printf("ERROR:%x",hr);/ c$ u4 N& \) }+ M% z/ G! `
; V+ t* \7 i0 b k. d- }; z
$ F/ y; [6 c8 P7 H; u. T! I8 u; o
HRESULT hRes = pSvc->utInstance(pclsObj,WBEM_FLAG_CREATE_OR_UPDATE,0,0);: L$ y5 m: m6 I( ~
0 X0 r3 @$ Q6 d$ e% A, B m- O' m4 A0 l# V+ B7 p+ ~
// Check for specific error and status codes.# O6 {0 _1 Z8 A5 r/ A
if (hRes == WBEM_E_ACCESS_DENIED)
+ z5 g! G9 o/ R+ e5 w% j* [! b5 }: E, n4 G) F
{
5 ^# m+ I9 b" T, i8 v
6 j M' O- Q: Z+ U: r* U$ m1 p* Qprintf("WBEM_E_ACCESS_DENIED\n");0 F- D* S! q8 m# ~2 E( t! T6 {7 i
4 Q8 |2 g" ?/ r+ @- p# Y4 C& C // Processing to handle specific error code
" j4 v( \7 x2 @$ z/ ^2 d1 m
8 t3 x) L' I. f- d# C9 j2 }}
; [$ ^( x) P1 @& ?8 G. `5 k" Y else if (hRes == WBEM_S_DUPLICATE_OBJECTS)
: [! k* G. s) s6 `+ I8 Q" u
5 v @ p1 i9 v8 L{
6 B" D* O& J9 P/ I5 }$ R* d
% t" N7 i" q! U% z- i+ N6 Tprintf("WBEM_S_DUPLICATE_OBJECTS\n");
T9 R1 i/ I9 _* \, s. @ // All other cases, including errors specific to COM: x5 W0 _! }9 }% [
7 j$ D0 ?9 e! x% y
}
9 G5 K$ M; ~! [4 | else if (hRes == WBEM_E_INVALID_OBJECT)* P' R7 B8 ^" v5 M5 w' H
' X4 B4 W. l+ {9 Z{
# h7 ]+ P$ M3 q
7 B( s. Y8 e; O! Sprintf("WBEM_E_INVALID_OBJECT\n");
) y' F9 j$ _/ J
$ j# P5 H; I. a' d$ r}# ?) \" L* o6 }. _$ U
else if(hRes == WBEM_E_INVALID_PARAMETER)
' G/ B4 G: L R+ J( M2 g y/ t N) G" A m' V* Q# W; G9 A6 Q# L8 s
{
& [0 ~0 S8 d- ?1 \7 _; Q& w1 p9 D9 b4 C
printf("WBEM_E_INVALID_PARAMETER\n");
7 R6 i+ V1 d* F
- ^5 o# c* {) f3 h1 K6 I}; ~" V# o/ w, h$ Z9 q6 K
else if(hRes == WBEM_S_NO_ERROR)
" x4 r) ]! E9 j- D0 J: v
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printf("WBEM_S_NO_ERROR\n");) V' V9 L4 S2 e
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// Cleanup
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// ========
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pSvc->Release();- C( x- Q% @2 Z9 ]: P4 H4 O
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: I, n4 o( w T e( y- BpLoc->Release();
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2 W" ?2 A7 P) X7 N* N1 l+ kpEnumerator->Release();
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pclsObj->Release();" p7 e) j0 [2 w2 H! V; ~. E( y
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6 b9 S! y) w, ]CoUninitialize();0 O- A( I: F! V2 M! s) I
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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,
+ H( I* n1 @6 u- b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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' B3 L& `6 W! o/ s3 iBIOS,EC,OS,Driver分别扮演的角色。; y- P# u( b$ k0 Z9 K) U" h. G
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that's all!
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[ 本帖最后由 peterhu 于 2009-6-3 14:25 编辑 ] |
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