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Diffstat (limited to 'security/nss/lib/util/win_rand.c')
-rw-r--r--security/nss/lib/util/win_rand.c415
1 files changed, 0 insertions, 415 deletions
diff --git a/security/nss/lib/util/win_rand.c b/security/nss/lib/util/win_rand.c
deleted file mode 100644
index de2e06ea7..000000000
--- a/security/nss/lib/util/win_rand.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- * 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.
- */
-
-#include "secrng.h"
-#ifdef XP_WIN
-#include <windows.h>
-#include <time.h>
-#include <io.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <stdio.h>
-
-#ifndef _WIN32
-#define VTD_Device_ID 5
-#define OP_OVERRIDE _asm _emit 0x66
-#include <dos.h>
-#endif
-
-static BOOL
-CurrentClockTickTime(LPDWORD lpdwHigh, LPDWORD lpdwLow)
-{
-#ifdef _WIN32
- LARGE_INTEGER liCount;
-
- if (!QueryPerformanceCounter(&liCount))
- return FALSE;
-
- *lpdwHigh = liCount.u.HighPart;
- *lpdwLow = liCount.u.LowPart;
- return TRUE;
-
-#else /* is WIN16 */
- BOOL bRetVal;
- FARPROC lpAPI;
- WORD w1, w2, w3, w4;
-
- // Get direct access to the VTD and query the current clock tick time
- _asm {
- xor di, di
- mov es, di
- mov ax, 1684h
- mov bx, VTD_Device_ID
- int 2fh
- mov ax, es
- or ax, di
- jz EnumerateFailed
-
- ; VTD API is available. First store the API address (the address actually
- ; contains an instruction that causes a fault, the fault handler then
- ; makes the ring transition and calls the API in the VxD)
- mov word ptr lpAPI, di
- mov word ptr lpAPI+2, es
- mov ax, 100h ; API function to VTD_Get_Real_Time
-; call dword ptr [lpAPI]
- call [lpAPI]
-
- ; Result is in EDX:EAX which we will get 16-bits at a time
- mov w2, dx
- OP_OVERRIDE
- shr dx,10h ; really "shr edx, 16"
- mov w1, dx
-
- mov w4, ax
- OP_OVERRIDE
- shr ax,10h ; really "shr eax, 16"
- mov w3, ax
-
- mov bRetVal, 1 ; return TRUE
- jmp EnumerateExit
-
- EnumerateFailed:
- mov bRetVal, 0 ; return FALSE
-
- EnumerateExit:
- }
-
- *lpdwHigh = MAKELONG(w2, w1);
- *lpdwLow = MAKELONG(w4, w3);
-
- return bRetVal;
-#endif /* is WIN16 */
-}
-
-size_t RNG_GetNoise(void *buf, size_t maxbuf)
-{
- DWORD dwHigh, dwLow, dwVal;
- int n = 0;
- int nBytes;
- time_t sTime;
-
- if (maxbuf <= 0)
- return 0;
-
- CurrentClockTickTime(&dwHigh, &dwLow);
-
- // get the maximally changing bits first
- nBytes = sizeof(dwLow) > maxbuf ? maxbuf : sizeof(dwLow);
- memcpy((char *)buf, &dwLow, nBytes);
- n += nBytes;
- maxbuf -= nBytes;
-
- if (maxbuf <= 0)
- return n;
-
- nBytes = sizeof(dwHigh) > maxbuf ? maxbuf : sizeof(dwHigh);
- memcpy(((char *)buf) + n, &dwHigh, nBytes);
- n += nBytes;
- maxbuf -= nBytes;
-
- if (maxbuf <= 0)
- return n;
-
- // get the number of milliseconds that have elapsed since Windows started
- dwVal = GetTickCount();
-
- nBytes = sizeof(dwVal) > maxbuf ? maxbuf : sizeof(dwVal);
- memcpy(((char *)buf) + n, &dwVal, nBytes);
- n += nBytes;
- maxbuf -= nBytes;
-
- if (maxbuf <= 0)
- return n;
-
- // get the time in seconds since midnight Jan 1, 1970
- time(&sTime);
- nBytes = sizeof(sTime) > maxbuf ? maxbuf : sizeof(sTime);
- memcpy(((char *)buf) + n, &sTime, nBytes);
- n += nBytes;
-
- return n;
-}
-
-static BOOL
-EnumSystemFiles(void (*func)(char *))
-{
- int iStatus;
- char szSysDir[_MAX_PATH];
- char szFileName[_MAX_PATH];
-#ifdef _WIN32
- struct _finddata_t fdData;
- long lFindHandle;
-#else
- struct _find_t fdData;
-#endif
-
- if (!GetSystemDirectory(szSysDir, sizeof(szSysDir)))
- return FALSE;
-
- // tack *.* on the end so we actually look for files. this will
- // not overflow
- strcpy(szFileName, szSysDir);
- strcat(szFileName, "\\*.*");
-
-#ifdef _WIN32
- lFindHandle = _findfirst(szFileName, &fdData);
- if (lFindHandle == -1)
- return FALSE;
-#else
- if (_dos_findfirst(szFileName, _A_NORMAL | _A_RDONLY | _A_ARCH | _A_SUBDIR, &fdData) != 0)
- return FALSE;
-#endif
-
- do {
- // pass the full pathname to the callback
- sprintf(szFileName, "%s\\%s", szSysDir, fdData.name);
- (*func)(szFileName);
-
-#ifdef _WIN32
- iStatus = _findnext(lFindHandle, &fdData);
-#else
- iStatus = _dos_findnext(&fdData);
-#endif
- } while (iStatus == 0);
-
-#ifdef _WIN32
- _findclose(lFindHandle);
-#endif
-
- return TRUE;
-}
-
-static DWORD dwNumFiles, dwReadEvery;
-
-static void
-CountFiles(char *file)
-{
- dwNumFiles++;
-}
-
-static void
-ReadFiles(char *file)
-{
- if ((dwNumFiles % dwReadEvery) == 0)
- RNG_FileForRNG(file);
-
- dwNumFiles++;
-}
-
-static void
-ReadSystemFiles()
-{
- // first count the number of files
- dwNumFiles = 0;
- if (!EnumSystemFiles(CountFiles))
- return;
-
- RNG_RandomUpdate(&dwNumFiles, sizeof(dwNumFiles));
-
- // now read 10 files
- if (dwNumFiles == 0)
- return;
-
- dwReadEvery = dwNumFiles / 10;
- if (dwReadEvery == 0)
- dwReadEvery = 1; // less than 10 files
-
- dwNumFiles = 0;
- EnumSystemFiles(ReadFiles);
-}
-
-void RNG_SystemInfoForRNG(void)
-{
- DWORD dwVal;
- char buffer[256];
- int nBytes;
-#ifdef _WIN32
- MEMORYSTATUS sMem;
- DWORD dwSerialNum;
- DWORD dwComponentLen;
- DWORD dwSysFlags;
- char volName[128];
- DWORD dwSectors, dwBytes, dwFreeClusters, dwNumClusters;
- HANDLE hVal;
-#else
- int iVal;
- HTASK hTask;
- WORD wDS, wCS;
- LPSTR lpszEnv;
-#endif
-
- nBytes = RNG_GetNoise(buffer, 20); // get up to 20 bytes
- RNG_RandomUpdate(buffer, nBytes);
-
-#ifdef _WIN32
- sMem.dwLength = sizeof(sMem);
- GlobalMemoryStatus(&sMem); // assorted memory stats
- RNG_RandomUpdate(&sMem, sizeof(sMem));
-
- dwVal = GetLogicalDrives();
- RNG_RandomUpdate(&dwVal, sizeof(dwVal)); // bitfields in bits 0-25
-
-#else
- dwVal = GetFreeSpace(0);
- RNG_RandomUpdate(&dwVal, sizeof(dwVal));
-
- _asm mov wDS, ds;
- _asm mov wCS, cs;
- RNG_RandomUpdate(&wDS, sizeof(wDS));
- RNG_RandomUpdate(&wCS, sizeof(wCS));
-#endif
-
-#ifdef _WIN32
- dwVal = sizeof(buffer);
- if (GetComputerName(buffer, &dwVal))
- RNG_RandomUpdate(buffer, dwVal);
-
-/* XXX This is code that got yanked because of NSPR20. We should put it
- * back someday.
- */
-#ifdef notdef
- {
- POINT ptVal;
- GetCursorPos(&ptVal);
- RNG_RandomUpdate(&ptVal, sizeof(ptVal));
- }
-
- dwVal = GetQueueStatus(QS_ALLINPUT); // high and low significant
- RNG_RandomUpdate(&dwVal, sizeof(dwVal));
-
- {
- HWND hWnd;
- hWnd = GetClipboardOwner(); // 2 or 4 bytes
- RNG_RandomUpdate((void *)&hWnd, sizeof(hWnd));
- }
-
- {
- UUID sUuid;
- UuidCreate(&sUuid); // this will fail on machines with no ethernet
- RNG_RandomUpdate(&sUuid, sizeof(sUuid)); // boards. shove the bits in regardless
- }
-#endif
-
- hVal = GetCurrentProcess(); // 4 byte handle of current task
- RNG_RandomUpdate(&hVal, sizeof(hVal));
-
- dwVal = GetCurrentProcessId(); // process ID (4 bytes)
- RNG_RandomUpdate(&dwVal, sizeof(dwVal));
-
- volName[0] = '\0';
- buffer[0] = '\0';
- GetVolumeInformation(NULL,
- volName,
- sizeof(volName),
- &dwSerialNum,
- &dwComponentLen,
- &dwSysFlags,
- buffer,
- sizeof(buffer));
-
- RNG_RandomUpdate(volName, strlen(volName));
- RNG_RandomUpdate(&dwSerialNum, sizeof(dwSerialNum));
- RNG_RandomUpdate(&dwComponentLen, sizeof(dwComponentLen));
- RNG_RandomUpdate(&dwSysFlags, sizeof(dwSysFlags));
- RNG_RandomUpdate(buffer, strlen(buffer));
-
- if (GetDiskFreeSpace(NULL, &dwSectors, &dwBytes, &dwFreeClusters, &dwNumClusters)) {
- RNG_RandomUpdate(&dwSectors, sizeof(dwSectors));
- RNG_RandomUpdate(&dwBytes, sizeof(dwBytes));
- RNG_RandomUpdate(&dwFreeClusters, sizeof(dwFreeClusters));
- RNG_RandomUpdate(&dwNumClusters, sizeof(dwNumClusters));
- }
-
-#else /* is WIN16 */
- hTask = GetCurrentTask();
- RNG_RandomUpdate((void *)&hTask, sizeof(hTask));
-
- iVal = GetNumTasks();
- RNG_RandomUpdate(&iVal, sizeof(iVal)); // number of running tasks
-
- lpszEnv = GetDOSEnvironment();
- while (*lpszEnv != '\0') {
- RNG_RandomUpdate(lpszEnv, strlen(lpszEnv));
-
- lpszEnv += strlen(lpszEnv) + 1;
- }
-#endif /* is WIN16 */
-
- // now let's do some files
- ReadSystemFiles();
-
- nBytes = RNG_GetNoise(buffer, 20); // get up to 20 bytes
- RNG_RandomUpdate(buffer, nBytes);
-}
-
-void RNG_FileForRNG(char *filename)
-{
- FILE* file;
- int nBytes;
- struct stat stat_buf;
- unsigned char buffer[1024];
-
- static DWORD totalFileBytes = 0;
-
- /* windows doesn't initialize all the bytes in the stat buf,
- * so initialize them all here to avoid UMRs.
- */
- memset(&stat_buf, 0, sizeof stat_buf);
-
- if (stat((char *)filename, &stat_buf) < 0)
- return;
-
- RNG_RandomUpdate((unsigned char*)&stat_buf, sizeof(stat_buf));
-
- file = fopen((char *)filename, "r");
- if (file != NULL) {
- for (;;) {
- size_t bytes = fread(buffer, 1, sizeof(buffer), file);
-
- if (bytes == 0)
- break;
-
- RNG_RandomUpdate(buffer, bytes);
- totalFileBytes += bytes;
- if (totalFileBytes > 250000)
- break;
- }
-
- fclose(file);
- }
-
- nBytes = RNG_GetNoise(buffer, 20); // get up to 20 bytes
- RNG_RandomUpdate(buffer, nBytes);
-}
-
-#endif /* is XP_WIN */
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