mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-31 06:05:44 +00:00
316 lines
8.6 KiB
C
316 lines
8.6 KiB
C
/*
|
|
* The contents of this file are subject to the Mozilla Public
|
|
* License Version 1.1 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS
|
|
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
|
* implied. See the License for the specific language governing
|
|
* rights and limitations under the License.
|
|
*
|
|
* The Original Code is the Netscape security libraries.
|
|
*
|
|
* The Initial Developer of the Original Code is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1994-2000 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*
|
|
* Alternatively, the contents of this file may be used under the
|
|
* terms of the GNU General Public License Version 2 or later (the
|
|
* "GPL"), in which case the provisions of the GPL are applicable
|
|
* instead of those above. If you wish to allow use of your
|
|
* version of this file only under the terms of the GPL and not to
|
|
* allow others to use your version of this file under the MPL,
|
|
* indicate your decision by deleting the provisions above and
|
|
* replace them with the notice and other provisions required by
|
|
* the GPL. If you do not delete the provisions above, a recipient
|
|
* may use your version of this file under either the MPL or the
|
|
* GPL.
|
|
*/
|
|
|
|
#ifdef notdef
|
|
#include "xp_core.h"
|
|
#include "xp_file.h"
|
|
#endif
|
|
#include "secrng.h"
|
|
#include "mcom_db.h"
|
|
#ifdef XP_MAC
|
|
#include <Events.h>
|
|
#include <OSUtils.h>
|
|
#include <QDOffscreen.h>
|
|
#include <PPCToolbox.h>
|
|
#include <Processes.h>
|
|
#include <LowMem.h>
|
|
#include <Scrap.h>
|
|
|
|
/* Static prototypes */
|
|
static size_t CopyLowBits(void *dst, size_t dstlen, void *src, size_t srclen);
|
|
void FE_ReadScreen();
|
|
|
|
static size_t CopyLowBits(void *dst, size_t dstlen, void *src, size_t srclen)
|
|
{
|
|
union endianness {
|
|
int32 i;
|
|
char c[4];
|
|
} u;
|
|
|
|
if (srclen <= dstlen) {
|
|
memcpy(dst, src, srclen);
|
|
return srclen;
|
|
}
|
|
u.i = 0x01020304;
|
|
if (u.c[0] == 0x01) {
|
|
/* big-endian case */
|
|
memcpy(dst, (char*)src + (srclen - dstlen), dstlen);
|
|
} else {
|
|
/* little-endian case */
|
|
memcpy(dst, src, dstlen);
|
|
}
|
|
return dstlen;
|
|
}
|
|
|
|
size_t RNG_GetNoise(void *buf, size_t maxbytes)
|
|
{
|
|
UnsignedWide microTickCount;
|
|
Microseconds(µTickCount);
|
|
return CopyLowBits(buf, maxbytes, µTickCount, sizeof(microTickCount));
|
|
}
|
|
|
|
void RNG_FileForRNG(const char *filename)
|
|
{
|
|
unsigned char buffer[BUFSIZ];
|
|
size_t bytes;
|
|
#ifdef notdef /*sigh*/
|
|
XP_File file;
|
|
unsigned long totalFileBytes = 0;
|
|
|
|
if (filename == NULL) /* For now, read in global history if filename is null */
|
|
file = XP_FileOpen(NULL, xpGlobalHistory,XP_FILE_READ_BIN);
|
|
else
|
|
file = XP_FileOpen(NULL, xpURL,XP_FILE_READ_BIN);
|
|
if (file != NULL) {
|
|
for (;;) {
|
|
bytes = XP_FileRead(buffer, sizeof(buffer), file);
|
|
if (bytes == 0) break;
|
|
RNG_RandomUpdate( buffer, bytes);
|
|
totalFileBytes += bytes;
|
|
if (totalFileBytes > 100*1024) break; /* No more than 100 K */
|
|
}
|
|
XP_FileClose(file);
|
|
}
|
|
#endif
|
|
/*
|
|
* Pass yet another snapshot of our highest resolution clock into
|
|
* the hash function.
|
|
*/
|
|
bytes = RNG_GetNoise(buffer, sizeof(buffer));
|
|
RNG_RandomUpdate(buffer, sizeof(buffer));
|
|
}
|
|
|
|
void RNG_SystemInfoForRNG()
|
|
{
|
|
/* Time */
|
|
{
|
|
unsigned long sec;
|
|
size_t bytes;
|
|
GetDateTime(&sec); /* Current time since 1970 */
|
|
RNG_RandomUpdate( &sec, sizeof(sec));
|
|
bytes = RNG_GetNoise(&sec, sizeof(sec));
|
|
RNG_RandomUpdate(&sec, bytes);
|
|
}
|
|
/* User specific variables */
|
|
{
|
|
MachineLocation loc;
|
|
ReadLocation(&loc);
|
|
RNG_RandomUpdate( &loc, sizeof(loc));
|
|
}
|
|
#if !TARGET_CARBON
|
|
/* User name */
|
|
{
|
|
unsigned long userRef;
|
|
Str32 userName;
|
|
GetDefaultUser(&userRef, userName);
|
|
RNG_RandomUpdate( &userRef, sizeof(userRef));
|
|
RNG_RandomUpdate( userName, sizeof(userName));
|
|
}
|
|
#endif
|
|
/* Mouse location */
|
|
{
|
|
Point mouseLoc;
|
|
GetMouse(&mouseLoc);
|
|
RNG_RandomUpdate( &mouseLoc, sizeof(mouseLoc));
|
|
}
|
|
/* Keyboard time threshold */
|
|
{
|
|
SInt16 keyTresh = LMGetKeyThresh();
|
|
RNG_RandomUpdate( &keyTresh, sizeof(keyTresh));
|
|
}
|
|
/* Last key pressed */
|
|
{
|
|
SInt8 keyLast;
|
|
keyLast = LMGetKbdLast();
|
|
RNG_RandomUpdate( &keyLast, sizeof(keyLast));
|
|
}
|
|
/* Volume */
|
|
{
|
|
UInt8 volume = LMGetSdVolume();
|
|
RNG_RandomUpdate( &volume, sizeof(volume));
|
|
}
|
|
#if !TARGET_CARBON
|
|
/* Current directory */
|
|
{
|
|
SInt32 dir = LMGetCurDirStore();
|
|
RNG_RandomUpdate( &dir, sizeof(dir));
|
|
}
|
|
#endif
|
|
/* Process information about all the processes in the machine */
|
|
{
|
|
ProcessSerialNumber process;
|
|
ProcessInfoRec pi;
|
|
|
|
process.highLongOfPSN = process.lowLongOfPSN = kNoProcess;
|
|
|
|
while (GetNextProcess(&process) == noErr)
|
|
{
|
|
FSSpec fileSpec;
|
|
pi.processInfoLength = sizeof(ProcessInfoRec);
|
|
pi.processName = NULL;
|
|
pi.processAppSpec = &fileSpec;
|
|
GetProcessInformation(&process, &pi);
|
|
RNG_RandomUpdate( &pi, sizeof(pi));
|
|
RNG_RandomUpdate( &fileSpec, sizeof(fileSpec));
|
|
}
|
|
}
|
|
|
|
#if !TARGET_CARBON
|
|
/* Heap */
|
|
{
|
|
THz zone = LMGetTheZone();
|
|
RNG_RandomUpdate( &zone, sizeof(zone));
|
|
}
|
|
#endif
|
|
|
|
/* Screen */
|
|
{
|
|
GDHandle h = GetMainDevice(); /* GDHandle is **GDevice */
|
|
RNG_RandomUpdate( *h, sizeof(GDevice));
|
|
}
|
|
|
|
#if !TARGET_CARBON
|
|
/* Scrap size */
|
|
{
|
|
SInt32 scrapSize = LMGetScrapSize();
|
|
RNG_RandomUpdate( &scrapSize, sizeof(scrapSize));
|
|
}
|
|
/* Scrap count */
|
|
{
|
|
SInt16 scrapCount = LMGetScrapCount();
|
|
RNG_RandomUpdate( &scrapCount, sizeof(scrapCount));
|
|
}
|
|
#else
|
|
{
|
|
ScrapRef scrap;
|
|
if (GetCurrentScrap(&scrap) == noErr) {
|
|
UInt32 flavorCount;
|
|
if (GetScrapFlavorCount(scrap, &flavorCount) == noErr) {
|
|
ScrapFlavorInfo* flavorInfo = (ScrapFlavorInfo*) malloc(flavorCount * sizeof(ScrapFlavorInfo));
|
|
if (flavorInfo != NULL) {
|
|
if (GetScrapFlavorInfoList(scrap, &flavorCount, flavorInfo) == noErr) {
|
|
UInt32 i;
|
|
RNG_RandomUpdate(&flavorCount, sizeof(flavorCount));
|
|
for (i = 0; i < flavorCount; ++i) {
|
|
Size flavorSize;
|
|
if (GetScrapFlavorSize(scrap, flavorInfo[i].flavorType, &flavorSize) == noErr)
|
|
RNG_RandomUpdate(&flavorSize, sizeof(flavorSize));
|
|
}
|
|
}
|
|
free(flavorInfo);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
/* File stuff, last modified, etc. */
|
|
{
|
|
HParamBlockRec pb;
|
|
GetVolParmsInfoBuffer volInfo;
|
|
pb.ioParam.ioVRefNum = 0;
|
|
pb.ioParam.ioNamePtr = nil;
|
|
pb.ioParam.ioBuffer = (Ptr) &volInfo;
|
|
pb.ioParam.ioReqCount = sizeof(volInfo);
|
|
PBHGetVolParmsSync(&pb);
|
|
RNG_RandomUpdate( &volInfo, sizeof(volInfo));
|
|
}
|
|
#if !TARGET_CARBON
|
|
/* Event queue */
|
|
{
|
|
EvQElPtr eventQ;
|
|
for (eventQ = (EvQElPtr) LMGetEventQueue()->qHead;
|
|
eventQ;
|
|
eventQ = (EvQElPtr)eventQ->qLink)
|
|
RNG_RandomUpdate( &eventQ->evtQWhat, sizeof(EventRecord));
|
|
}
|
|
#endif
|
|
FE_ReadScreen();
|
|
RNG_FileForRNG(NULL);
|
|
}
|
|
|
|
void FE_ReadScreen()
|
|
{
|
|
UInt16 coords[4];
|
|
PixMapHandle pmap;
|
|
GDHandle gh;
|
|
UInt16 screenHeight;
|
|
UInt16 screenWidth; /* just what they say */
|
|
UInt32 bytesToRead; /* number of bytes we're giving */
|
|
UInt32 offset; /* offset into the graphics buffer */
|
|
UInt16 rowBytes;
|
|
UInt32 rowsToRead;
|
|
float bytesPerPixel; /* dependent on buffer depth */
|
|
Ptr p; /* temporary */
|
|
UInt16 x, y, w, h;
|
|
|
|
gh = LMGetMainDevice();
|
|
if ( !gh )
|
|
return;
|
|
pmap = (**gh).gdPMap;
|
|
if ( !pmap )
|
|
return;
|
|
|
|
RNG_GenerateGlobalRandomBytes( coords, sizeof( coords ) );
|
|
|
|
/* make x and y inside the screen rect */
|
|
screenHeight = (**pmap).bounds.bottom - (**pmap).bounds.top;
|
|
screenWidth = (**pmap).bounds.right - (**pmap).bounds.left;
|
|
x = coords[0] % screenWidth;
|
|
y = coords[1] % screenHeight;
|
|
w = ( coords[2] & 0x7F ) | 0x40; /* Make sure that w is in the range 64..128 */
|
|
h = ( coords[3] & 0x7F ) | 0x40; /* same for h */
|
|
|
|
bytesPerPixel = (**pmap).pixelSize / 8;
|
|
rowBytes = (**pmap).rowBytes & 0x7FFF;
|
|
|
|
/* starting address */
|
|
offset = ( rowBytes * y ) + (UInt32)( (float)x * bytesPerPixel );
|
|
|
|
/* don't read past the end of the pixmap's rowbytes */
|
|
bytesToRead = PR_MIN( (UInt32)( w * bytesPerPixel ),
|
|
(UInt32)( rowBytes - ( x * bytesPerPixel ) ) );
|
|
|
|
/* don't read past the end of the graphics device pixmap */
|
|
rowsToRead = PR_MIN( h,
|
|
( screenHeight - y ) );
|
|
|
|
p = GetPixBaseAddr( pmap ) + offset;
|
|
|
|
while ( rowsToRead-- )
|
|
{
|
|
RNG_RandomUpdate( p, bytesToRead );
|
|
p += rowBytes;
|
|
}
|
|
}
|
|
#endif
|