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 72 /* Use 32-bit pointers almost everywhere. Define the type to which to 73 * cast a pointer passed to an external function. 74 */ 75 #if __INITIAL_POINTER_SIZE == 64 76 # define PTR_T __void_ptr64 77 # pragma pointer_size save 78 # pragma pointer_size 32 79 #else /* __INITIAL_POINTER_SIZE == 64 */ 80 # define PTR_T void * 81 #endif /* __INITIAL_POINTER_SIZE == 64 [else] */ 82 83 static struct items_data_st 84 { 85 short length, code; /* length is amount of bytes */ 86 } items_data[] = 87 { { 4, JPI$_BUFIO }, 88 { 4, JPI$_CPUTIM }, 89 { 4, JPI$_DIRIO }, 90 { 8, JPI$_LOGINTIM }, 91 { 4, JPI$_PAGEFLTS }, 92 { 4, JPI$_PID }, 93 { 4, JPI$_WSSIZE }, 94 { 0, 0 } 95 }; 96 97 int RAND_poll(void) 98 { 99 long pid, iosb[2]; 100 int status = 0; 101 struct 102 { 103 short length, code; 104 long *buffer; 105 int *retlen; 106 } item[32], *pitem; 107 unsigned char data_buffer[256]; 108 short total_length = 0; 109 struct items_data_st *pitems_data; 110 111 pitems_data = items_data; 112 pitem = item; 113 114 /* Setup */ 115 while (pitems_data->length 116 && (total_length + pitems_data->length <= 256)) 117 { 118 pitem->length = pitems_data->length; 119 pitem->code = pitems_data->code; 120 pitem->buffer = (long *)&data_buffer[total_length]; 121 pitem->retlen = 0; 122 total_length += pitems_data->length; 123 pitems_data++; 124 pitem++; 125 } 126 pitem->length = pitem->code = 0; 127 128 /* 129 * Scan through all the processes in the system and add entropy with 130 * results from the processes that were possible to look at. 131 * However, view the information as only half trustable. 132 */ 133 pid = -1; /* search context */ 134 while ((status = sys$getjpiw(0, &pid, 0, item, iosb, 0, 0)) 135 != SS$_NOMOREPROC) 136 { 137 if (status == SS$_NORMAL) 138 { 139 RAND_add( (PTR_T)data_buffer, total_length, 140 total_length/2); 141 } 142 } 143 sys$gettim(iosb); 144 RAND_add( (PTR_T)iosb, sizeof(iosb), sizeof(iosb)/2); 145 return 1; 146 } 147 148 #endif 149