1 /* ====================================================================
2 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For written permission, please contact
24 * openssl-core@openssl.org.
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
28 * permission of the OpenSSL Project.
30 * 6. Redistributions of any form whatsoever must retain the following
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ====================================================================
49 * This product includes cryptographic software written by Eric Young
50 * (eay@cryptsoft.com). This product includes software written by Tim
51 * Hudson (tjh@cryptsoft.com).
55 #include "internal/cryptlib.h"
56 #include <openssl/rand.h>
59 #ifdef OPENSSL_SYS_OS2
61 # define INCL_DOSPROCESS
62 # define INCL_DOSPROFILE
64 # define INCL_DOSMODULEMGR
67 # define CMD_KI_RDCNT (0x63)
69 typedef struct _CPUUTIL {
70 ULONG ulTimeLow; /* Low 32 bits of time stamp */
71 ULONG ulTimeHigh; /* High 32 bits of time stamp */
72 ULONG ulIdleLow; /* Low 32 bits of idle time */
73 ULONG ulIdleHigh; /* High 32 bits of idle time */
74 ULONG ulBusyLow; /* Low 32 bits of busy time */
75 ULONG ulBusyHigh; /* High 32 bits of busy time */
76 ULONG ulIntrLow; /* Low 32 bits of interrupt time */
77 ULONG ulIntrHigh; /* High 32 bits of interrupt time */
81 APIRET APIENTRY(*DosPerfSysCall) (ULONG ulCommand, ULONG ulParm1,
82 ULONG ulParm2, ULONG ulParm3) = NULL;
83 APIRET APIENTRY(*DosQuerySysState) (ULONG func, ULONG arg1, ULONG pid,
84 ULONG _res_, PVOID buf, ULONG bufsz) =
87 HMODULE hDoscalls = 0;
91 char failed_module[20];
93 ULONG SysVars[QSV_FOREGROUND_PROCESS];
97 DosLoadModule(failed_module, sizeof(failed_module), "DOSCALLS",
102 rc = DosQueryProcAddr(hDoscalls, 976, NULL,
103 (PFN *) & DosPerfSysCall);
106 DosPerfSysCall = NULL;
108 rc = DosQueryProcAddr(hDoscalls, 368, NULL,
109 (PFN *) & DosQuerySysState);
112 DosQuerySysState = NULL;
117 /* Sample the hi-res timer, runs at around 1.1 MHz */
118 DosTmrQueryTime(&qwTime);
119 RAND_add(&qwTime, sizeof(qwTime), 2);
122 * Sample a bunch of system variables, includes various process & memory
125 DosQuerySysInfo(1, QSV_FOREGROUND_PROCESS, SysVars, sizeof(SysVars));
126 RAND_add(SysVars, sizeof(SysVars), 4);
129 * If available, sample CPU registers that count at CPU MHz Only fairly
130 * new CPUs (PPro & K6 onwards) & OS/2 versions support this
132 if (DosPerfSysCall) {
135 if (DosPerfSysCall(CMD_KI_RDCNT, (ULONG) & util, 0, 0) == 0) {
136 RAND_add(&util, sizeof(util), 10);
139 DosPerfSysCall = NULL;
145 * DosQuerySysState() gives us a huge quantity of process, thread, memory
148 if (DosQuerySysState) {
149 char *buffer = OPENSSL_malloc(256 * 1024);
154 if (DosQuerySysState(0x1F, 0, 0, 0, buffer, 256 * 1024) == 0) {
156 * First 4 bytes in buffer is a pointer to the thread count there
157 * should be at least 1 byte of entropy per thread
159 RAND_add(buffer, 256 * 1024, **(ULONG **) buffer);
162 OPENSSL_free(buffer);
169 #endif /* OPENSSL_SYS_OS2 */