--- /dev/null
+/* crypto/rand/rand_os2.c */
+/* ====================================================================
+ * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include "cryptlib.h"
+#include <openssl/rand.h>
+#include "rand_lcl.h"
+
+#ifdef OPENSSL_SYS_OS2
+
+#define INCL_DOSPROCESS
+#define INCL_DOSPROFILE
+#define INCL_DOSMISC
+#define INCL_DOSMODULEMGR
+#include <os2.h>
+
+#define CMD_KI_RDCNT (0x63)
+
+typedef struct _CPUUTIL {
+ ULONG ulTimeLow; /* Low 32 bits of time stamp */
+ ULONG ulTimeHigh; /* High 32 bits of time stamp */
+ ULONG ulIdleLow; /* Low 32 bits of idle time */
+ ULONG ulIdleHigh; /* High 32 bits of idle time */
+ ULONG ulBusyLow; /* Low 32 bits of busy time */
+ ULONG ulBusyHigh; /* High 32 bits of busy time */
+ ULONG ulIntrLow; /* Low 32 bits of interrupt time */
+ ULONG ulIntrHigh; /* High 32 bits of interrupt time */
+} CPUUTIL;
+
+#ifndef __KLIBC__
+APIRET APIENTRY(*DosPerfSysCall) (ULONG ulCommand, ULONG ulParm1, ULONG ulParm2, ULONG ulParm3) = NULL;
+APIRET APIENTRY(*DosQuerySysState) (ULONG func, ULONG arg1, ULONG pid, ULONG _res_, PVOID buf, ULONG bufsz) = NULL;
+#endif
+HMODULE hDoscalls = 0;
+
+int RAND_poll(void)
+{
+ char failed_module[20];
+ QWORD qwTime;
+ ULONG SysVars[QSV_FOREGROUND_PROCESS];
+
+ if (hDoscalls == 0) {
+ ULONG rc = DosLoadModule(failed_module, sizeof(failed_module), "DOSCALLS", &hDoscalls);
+
+#ifndef __KLIBC__
+ if (rc == 0) {
+ rc = DosQueryProcAddr(hDoscalls, 976, NULL, (PFN *)&DosPerfSysCall);
+
+ if (rc)
+ DosPerfSysCall = NULL;
+
+ rc = DosQueryProcAddr(hDoscalls, 368, NULL, (PFN *)&DosQuerySysState);
+
+ if (rc)
+ DosQuerySysState = NULL;
+ }
+#endif
+ }
+
+ /* Sample the hi-res timer, runs at around 1.1 MHz */
+ DosTmrQueryTime(&qwTime);
+ RAND_add(&qwTime, sizeof(qwTime), 2);
+
+ /* Sample a bunch of system variables, includes various process & memory statistics */
+ DosQuerySysInfo(1, QSV_FOREGROUND_PROCESS, SysVars, sizeof(SysVars));
+ RAND_add(SysVars, sizeof(SysVars), 4);
+
+ /* If available, sample CPU registers that count at CPU MHz
+ * Only fairly new CPUs (PPro & K6 onwards) & OS/2 versions support this
+ */
+ if (DosPerfSysCall) {
+ CPUUTIL util;
+
+ if (DosPerfSysCall(CMD_KI_RDCNT, (ULONG)&util, 0, 0) == 0) {
+ RAND_add(&util, sizeof(util), 10);
+ }
+ else {
+#ifndef __KLIBC__
+ DosPerfSysCall = NULL;
+#endif
+ }
+ }
+
+ /* DosQuerySysState() gives us a huge quantity of process, thread, memory & handle stats */
+ if (DosQuerySysState) {
+ char *buffer = OPENSSL_malloc(256 * 1024);
+
+ if (DosQuerySysState(0x1F, 0, 0, 0, buffer, 256 * 1024) == 0) {
+ /* First 4 bytes in buffer is a pointer to the thread count
+ * there should be at least 1 byte of entropy per thread
+ */
+ RAND_add(buffer, 256 * 1024, **(ULONG **)buffer);
+ }
+
+ OPENSSL_free(buffer);
+ return 1;
+ }
+
+ return 0;
+}
+
+#endif /* OPENSSL_SYS_OS2 */
projects / cassiopeia.git / blobdiff