1/* crypto/rand/rand_vms.c -*- mode:C; c-file-style: "eay" -*- */ 2/* Written by Richard Levitte <richard@levitte.org> for the OpenSSL 3 * project 2000. 4 */ 5/* ==================================================================== 6 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * openssl-core@openssl.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 * 53 * This product includes cryptographic software written by Eric Young 54 * (eay@cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh@cryptsoft.com). 56 * 57 */ 58 59#include <openssl/rand.h> 60#include "rand_lcl.h" 61 62#if defined(OPENSSL_SYS_VMS) 63 64#include <descrip.h> 65#include <jpidef.h> 66#include <ssdef.h> 67#include <starlet.h> 68#ifdef __DECC 69# pragma message disable DOLLARID 70#endif 71 72static struct items_data_st 73 { 74 short length, code; /* length is amount of bytes */ 75 } items_data[] = 76 { { 4, JPI$_BUFIO }, 77 { 4, JPI$_CPUTIM }, 78 { 4, JPI$_DIRIO }, 79 { 8, JPI$_LOGINTIM }, 80 { 4, JPI$_PAGEFLTS }, 81 { 4, JPI$_PID }, 82 { 4, JPI$_WSSIZE }, 83 { 0, 0 } 84 }; 85 86int RAND_poll(void) 87 { 88 long pid, iosb[2]; 89 int status = 0; 90 struct 91 { 92 short length, code; 93 long *buffer; 94 int *retlen; 95 } item[32], *pitem; 96 unsigned char data_buffer[256]; 97 short total_length = 0; 98 struct items_data_st *pitems_data; 99 100 pitems_data = items_data; 101 pitem = item; 102 103 /* Setup */ 104 while (pitems_data->length 105 && (total_length + pitems_data->length <= 256)) 106 { 107 pitem->length = pitems_data->length; 108 pitem->code = pitems_data->code; 109 pitem->buffer = (long *)&data_buffer[total_length]; 110 pitem->retlen = 0; 111 total_length += pitems_data->length; 112 pitems_data++; 113 pitem++; 114 } 115 pitem->length = pitem->code = 0; 116 117 /* 118 * Scan through all the processes in the system and add entropy with 119 * results from the processes that were possible to look at. 120 * However, view the information as only half trustable. 121 */ 122 pid = -1; /* search context */ 123 while ((status = sys$getjpiw(0, &pid, 0, item, iosb, 0, 0)) 124 != SS$_NOMOREPROC) 125 { 126 if (status == SS$_NORMAL) 127 { 128 RAND_add(data_buffer, total_length, total_length/2); 129 } 130 } 131 sys$gettim(iosb); 132 RAND_add((unsigned char *)iosb, sizeof(iosb), sizeof(iosb)/2); 133 return 1; 134} 135 136#endif 137