2 * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * Modified by VMS Software, Inc (2016)
12 * Eliminate looping through all processes (performance)
13 * Add additional randomizations using rand() function
16 #include <openssl/rand.h>
19 #if defined(OPENSSL_SYS_VMS)
26 # pragma message disable DOLLARID
30 * Use 32-bit pointers almost everywhere. Define the type to which to cast a
31 * pointer passed to an external function.
33 # if __INITIAL_POINTER_SIZE == 64
34 # define PTR_T __void_ptr64
35 # pragma pointer_size save
36 # pragma pointer_size 32
37 # else /* __INITIAL_POINTER_SIZE == 64 */
39 # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
41 static struct items_data_st {
42 short length, code; /* length is number of bytes */
48 {8, JPI$_LAST_LOGIN_I},
55 {0, 0} /* zero terminated */
61 /* determine the number of items in the JPI array */
63 struct items_data_st item_entry;
64 int item_entry_count = sizeof(items_data)/sizeof(item_entry);
66 /* Create the JPI itemlist array to hold item_data content */
72 } item[item_entry_count], *pitem; /* number of entries in items_data */
74 struct items_data_st *pitems_data;
75 int data_buffer[(item_entry_count*2)+4]; /* 8 bytes per entry max */
83 pitems_data = items_data;
87 /* Setup itemlist for GETJPI */
88 while (pitems_data->length) {
89 pitem->length = pitems_data->length;
90 pitem->code = pitems_data->code;
91 pitem->buffer = &data_buffer[total_length];
93 /* total_length is in longwords */
94 total_length += pitems_data->length/4;
98 pitem->length = pitem->code = 0;
100 /* Fill data_buffer with various info bits from this process */
101 /* and twist that data to seed the SSL random number init */
103 if (sys$getjpiw(EFN$C_ENF, NULL, NULL, item, &iosb, 0, 0) == SS$_NORMAL) {
104 for (i = 0; i < total_length; i++) {
105 sys$gettim((struct _generic_64 *)&sys_time[0]);
106 srand(sys_time[0] * data_buffer[0] * data_buffer[1] + i);
108 if (i == (total_length - 1)) { /* for JPI$_FINALEXC */
109 ptr = &data_buffer[i];
110 for (j = 0; j < 4; j++) {
111 data_buffer[i + j] = ptr[j];
112 /* OK to use rand() just to scramble the seed */
113 data_buffer[i + j] ^= (sys_time[0] ^ rand());
117 /* OK to use rand() just to scramble the seed */
118 data_buffer[i] ^= (sys_time[0] ^ rand());
122 total_length += (tmp_length - 1);
124 /* size of seed is total_length*4 bytes (64bytes) */
125 RAND_add((PTR_T) data_buffer, total_length*4, total_length * 2);