source: trunk/src/win32k/dev16/d16init.c@ 4633

Last change on this file since 4633 was 4185, checked in by bird, 25 years ago

Corrected FATAL error in k32QueryOptionsStatus.cpp. (Forgot SSToDS...)
Improved error messages during init.
File size: 9.3 KB
Line 
1/* $Id: d16init.c,v 1.8 2000-09-04 16:40:47 bird Exp $
2 *
3 * d16init - init routines for both drivers.
4 *
5 * IMPORTANT! Code and data defined here will be discarded after init is
6 * compleated. CodeEnd and DataEnd should not be set here.?
7 *
8 * Copyright (c) 1999-2000 knut st. osmundsen (knut.stange.osmundsen@mynd.no)
9 *
10 * Project Odin Software License can be found in LICENSE.TXT
11 *
12 */
13
14/*******************************************************************************
15* Defined Constants *
16*******************************************************************************/
17#define INCL_16
18#define INCL_DOSFILEMGR
19#define INCL_DOSDEVICES
20#define INCL_DOSMISC
21#define INCL_DOSERRORS
22#define INCL_NOPMAPI
23
24
25/*******************************************************************************
26* Header Files *
27*******************************************************************************/
28#include <os2.h>
29#include <devhdr.h>
30#include <devcmd.h>
31#include <strat2.h>
32#include <reqpkt.h>
33#include <dhcalls.h>
34
35#include <string.h>
36#include <memory.h>
37
38#include "devSegDf.h"
39#undef DATA16_INIT
40#define DATA16_INIT
41#undef CODE16_INIT
42#define CODE16_INIT
43#include "probkrnl.h"
44#include "dev1632.h"
45#include "dev16.h"
46#include "vprntf16.h"
47#include "log.h"
48#include "options.h"
49#include "errors.h"
50
51
52/**
53 * init function - device 0.
54 * Does nothing else than setting the device_help variable and
55 * fill the request packet.
56 * @returns Status word.
57 * @param pRpIn Pointer to input request packet. Actually the same memory as pRpOut but another struct.
58 * @param pRpOut Pointer to output request packet. Actually the same memory as pRpIn but another struct.
59 * @remark pRpIn and pRpOut points to the same memory.
60 */
61USHORT NEAR dev0Init(PRPINITIN pRpIn, PRPINITOUT pRpOut)
62{
63 APIRET rc;
64 Device_Help = pRpIn->DevHlpEP;
65
66 /*
67 * Does this work at Ring-3 (inittime)?
68 * If this work we could be saved from throuble!
69 */
70 rc = initGetDosTableData();
71 if (rc != NO_ERROR)
72 printf16("win32k - elf$: initGetDosTableData failed with rc=%d\n", rc);
73
74 pRpOut->BPBArray = NULL;
75 pRpOut->CodeEnd = (USHORT)&CODE16_INITSTART;
76 pRpOut->DataEnd = (USHORT)&DATA16_INITSTART;
77 pRpOut->Unit = 0;
78 pRpOut->rph.Status = STATUS_DONE;
79 return STATUS_DONE;
80}
81
82
83/**
84 * init function - device 1.
85 * We will send an IOCtl request to the elf$ (device 0) which will
86 * perform the Ring-0 initiation of the driver.
87 * @returns Status word.
88 * @param pRpIn Pointer to input request packet. Actually the same memory as pRpOut but another struct.
89 * @param pRpOut Pointer to output request packet. Actually the same memory as pRpIn but another struct.
90 * @remark pRpIn and pRpOut points to the same memory.
91 */
92USHORT NEAR dev1Init(PRPINITIN pRpIn, PRPINITOUT pRpOut)
93{
94 APIRET rc;
95 D16R0INITPARAM param;
96 D16R0INITDATA data = {0};
97 HFILE hDev0 = 0;
98 USHORT usAction = 0;
99 NPSZ npszErrMsg = NULL;
100 NPSZ npszErrMsg2 = NULL;
101
102 /*
103 * Probe kernel data.
104 */
105 rc = ProbeKernel(pRpIn);
106 if (rc == NO_ERROR)
107 {
108 /*
109 * Open and send a Ring-0 init packet to elf$.
110 * If this succeeds win32k$ init succeeds.
111 */
112 rc = DosOpen("\\dev\\elf$", &hDev0, &usAction, 0UL, FILE_NORMAL,
113 OPEN_ACTION_FAIL_IF_NEW | OPEN_ACTION_OPEN_IF_EXISTS,
114 OPEN_SHARE_DENYNONE | OPEN_ACCESS_READONLY,
115 0UL);
116 if (rc == NO_ERROR)
117 {
118 param.pRpInitIn = pRpIn;
119 rc = DosDevIOCtl(&data, &param, D16_IOCTL_RING0INIT, D16_IOCTL_CAT, hDev0);
120 if (rc == NO_ERROR)
121 {
122 if (data.usRcInit32 == NO_ERROR)
123 {
124 if (!options.fQuiet)
125 printf16("Win32k.sys succesfully initiated!\n");
126 pRpOut->Status = pRpOut->rph.Status = STATUS_DONE;
127 }
128 else
129 {
130 /* set correct error message and rc */
131 rc = data.usRcInit32;
132 npszErrMsg = "Ring-0 initiation failed. rc=%x\n";
133 if (rc >= ERROR_D32_FIRST && rc <= ERROR_D32_LAST)
134 npszErrMsg2 = GetErrorMsg(data.usRcInit32 + ERROR_PROB_SYM_D32_FIRST - ERROR_D32_FIRST);
135 }
136 }
137 else
138 npszErrMsg = "Ring-0 init: DosDevIOCtl failed. rc=%d\n";
139 DosClose(hDev0);
140 }
141 else
142 npszErrMsg = "Ring-0 init: DosOpen failed. rc=%d\n";
143 }
144 else
145 npszErrMsg = ""; /* ProbeKrnl do its own complaining, but we need something here to indicate failure. */
146
147 /*
148 * Fill return data.
149 */
150 pRpOut->CodeEnd = (USHORT)&CODE16_INITSTART;
151 pRpOut->DataEnd = (USHORT)&DATA16_INITSTART;
152 pRpOut->BPBArray= NULL;
153 pRpOut->Unit = 0;
154
155 /*
156 * Any errors?, if so complain!
157 */
158 if (npszErrMsg)
159 {
160 printf16(npszErrMsg, rc);
161 if (npszErrMsg2)
162 printf16("%s\n", npszErrMsg2);
163 pRpOut->Status = pRpOut->rph.Status = STATUS_DONE | STERR | ERROR_I24_GEN_FAILURE;
164 }
165
166 /* Init is completed. */
167 fInitTime = FALSE;
168
169 /* successful return */
170 return pRpOut->rph.Status;
171}
172
173
174
175/**
176 * R0 16-bit initiation.
177 * This gets TKSSBase, thunks parameters and calls R0 32-bit initiation function.
178 * @returns Status word. We don't fail on R0Init32 but forwards the result
179 * using the usRcInit32.
180 * @param pRp Generic IO Control request packet.
181 */
182USHORT NEAR R0Init16(PRP_GENIOCTL pRp)
183{
184 USHORT usRc = STATUS_DONE;
185 APIRET rc;
186
187 /* First we're to get the DosTable2 stuff. */
188 rc = initGetDosTableData();
189 if (rc == NO_ERROR)
190 {
191 ULONG cPages;
192 char hLockParm[12] = {0};
193 ULONG ulLinParm;
194 char hLockData[12] = {0};
195 ULONG ulLinData;
196
197 /*
198 * Thunk the request packet and lock userdata.
199 */
200 if (!DevHelp_VirtToLin(SELECTOROF(pRp->ParmPacket), OFFSETOF(pRp->ParmPacket), &ulLinParm)
201 &&
202 !DevHelp_VirtToLin(SELECTOROF(pRp->DataPacket), OFFSETOF(pRp->DataPacket), &ulLinData)
203 )
204 {
205 if (!(rc = DevHelp_VMLock(VMDHL_LONG | VMDHL_WRITE,
206 ulLinParm, sizeof(D16R0INITPARAM),
207 (LIN)~0UL, SSToDS_16(&hLockParm[0]), &cPages))
208 &&
209 !DevHelp_VMLock(VMDHL_LONG | VMDHL_WRITE,
210 ulLinData, sizeof(D16R0INITDATA),
211 (LIN)~0UL, SSToDS_16(&hLockData[0]), &cPages)
212 )
213 {
214 /*
215 * -data and param is locked (do we need to lock the request packet too ?).-
216 * Create new 32-bit init packet - Parameter pointer is thunked.
217 */
218 RP32INIT rp32init;
219
220 _fmemcpy(&rp32init, ((PD16R0INITPARAM)pRp->ParmPacket)->pRpInitIn, sizeof(RPINITIN));
221 if (((PD16R0INITPARAM)pRp->ParmPacket)->pRpInitIn->InitArgs == NULL ||
222 !DevHelp_VirtToLin(SELECTOROF(rp32init.InitArgs), OFFSETOF(rp32init.InitArgs), (PLIN)&rp32init.InitArgs)
223 )
224 { /* call 32-bit init routine and set 32 bit rc. */
225 usRc = CallR0Init32(SSToDS_16(&rp32init));
226 ((PD16R0INITDATA)pRp->DataPacket)->usRcInit32 = usRc;
227
228 /* set status to done (success). (R0Init32 RC is return as usRcInit32.) */
229 usRc = STATUS_DONE;
230 }
231 else
232 usRc |= STERR | ERROR_I24_INVALID_PARAMETER;
233
234
235 /*
236 * finished - unlock data and parm;
237 */
238 DevHelp_VMUnLock((LIN)SSToDS_16(&hLockParm[0]));
239 DevHelp_VMUnLock((LIN)SSToDS_16(&hLockData[0]));
240 }
241 else
242 usRc |= STERR | ERROR_I24_INVALID_PARAMETER;
243 }
244 else
245 usRc |= STERR | ERROR_I24_INVALID_PARAMETER;
246 }
247 else
248 usRc |= STERR | ERROR_I24_GEN_FAILURE;
249
250 return usRc;
251}
252
253
254
255/**
256 * Gets the data we need from the DosTables.
257 * This data is TKSSBase16, R0FlatCS16 and R0FlatDS16.
258 * @returns Same as DevHelp_GetDosVar.
259 * @status completely implemented.
260 * @author knut st. osmundsen (knut.stange.osmundsen@pmsc.no)
261 * @remark If you are not sure if TKSSBase16 is set or not, call this.
262 * After R0Init16 is called TKSSBase16 _is_ set.
263 * IMPORTANT! This function must _not_ be called after the initiation of the second device driver!!!
264 * (Since this is init code not present after init...)
265 */
266USHORT NEAR initGetDosTableData(void)
267{
268 APIRET rc;
269 PDOSTABLE pDT;
270 PDOSTABLE2 pDT2;
271
272 if (TKSSBase16 != 0)
273 return NO_ERROR;
274 /*
275 _asm {
276 int 3;
277 }
278 */
279
280 /* First we're to get the DosTable2 stuff. */
281 rc = DevHelp_GetDOSVar(9, 0, &pDT);
282 if (rc == NO_ERROR)
283 {
284 pDT2 = (PDOSTABLE2)((char FAR *)pDT + pDT->cul*4 + 1);
285 TKSSBase16 = (ULONG)pDT2->pTKSSBase;
286 R0FlatCS16 = (USHORT)pDT2->R0FlatCS;
287 R0FlatDS16 = (USHORT)pDT2->R0FlatDS;
288 }
289 return rc;
290}
Note: See TracBrowser for help on using the repository browser.