1 files changed, 147 insertions, 0 deletions

diff --git a/src/lib/libcrypto/rand/rand_os2.c b/src/lib/libcrypto/rand/rand_os2.c
new file mode 100644
index 0000000000..c3e36d4e5e
--- /dev/null
+++ b/src/lib/libcrypto/rand/rand_os2.c
@@ -0,0 +1,147 @@
+/* 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;
+
+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;
+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);
+
+        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;
+        }
+    }
+
+    /* 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 {
+            DosPerfSysCall = NULL;
+        }
+    }
+
+    /* 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 */