2 * Copyright 2001-2017 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
12 #if defined(OPENSSL_SYS_VMS)
13 # include <openssl/rand.h>
14 # include "rand_lcl.h"
21 # pragma message disable DOLLARID
24 # ifndef OPENSSL_RAND_SEED_OS
25 # error "Unsupported seeding method configured; must be os"
29 * Use 32-bit pointers almost everywhere. Define the type to which to cast a
30 * pointer passed to an external function.
32 # if __INITIAL_POINTER_SIZE == 64
33 # define PTR_T __void_ptr64
34 # pragma pointer_size save
35 # pragma pointer_size 32
40 static struct items_data_st {
41 short length, code; /* length is number of bytes */
47 {8, JPI$_LAST_LOGIN_I},
57 size_t RAND_POOL_acquire_entropy(RAND_POOL *pool)
59 /* determine the number of items in the JPI array */
60 struct items_data_st item_entry;
61 int item_entry_count = OSSL_NELEM(items_data);
62 /* Create the JPI itemlist array to hold item_data content */
67 } item[item_entry_count], *pitem;
68 struct items_data_st *pitems_data;
69 int data_buffer[(item_entry_count * 2) + 4]; /* 8 bytes per entry max */
77 /* Setup itemlist for GETJPI */
78 pitems_data = items_data;
79 for (pitem = item; pitems_data->length != 0; pitem++) {
80 pitem->length = pitems_data->length;
81 pitem->code = pitems_data->code;
82 pitem->buffer = &data_buffer[total_length];
84 /* total_length is in longwords */
85 total_length += pitems_data->length / 4;
88 pitem->length = pitem->code = 0;
90 /* Fill data_buffer with various info bits from this process */
91 if (sys$getjpiw(EFN$C_ENF, NULL, NULL, item, &iosb, 0, 0) != SS$_NORMAL)
94 /* Now twist that data to seed the SSL random number init */
95 for (i = 0; i < total_length; i++) {
96 sys$gettim((struct _generic_64 *)&sys_time[0]);
97 srand(sys_time[0] * data_buffer[0] * data_buffer[1] + i);
99 if (i == (total_length - 1)) { /* for JPI$_FINALEXC */
100 ptr = &data_buffer[i];
101 for (j = 0; j < 4; j++) {
102 data_buffer[i + j] = ptr[j];
103 /* OK to use rand() just to scramble the seed */
104 data_buffer[i + j] ^= (sys_time[0] ^ rand());
108 /* OK to use rand() just to scramble the seed */
109 data_buffer[i] ^= (sys_time[0] ^ rand());
113 total_length += (tmp_length - 1);
116 * Size of seed is total_length*4 bytes (64bytes). The original assumption
117 * was that it contains 4 bits of entropy per byte. This makes a total
118 * amount of total_length*16 bits (256bits).
120 return RAND_POOL_add(pool,
121 (PTR_T)data_buffer, total_length * 4,