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 "internal/rand_int.h"
15 # include "rand_lcl.h"
22 # pragma message disable DOLLARID
25 # ifndef OPENSSL_RAND_SEED_OS
26 # error "Unsupported seeding method configured; must be os"
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
41 static struct items_data_st {
42 short length, code; /* length is number of bytes */
48 {8, JPI$_LAST_LOGIN_I},
58 size_t rand_pool_acquire_entropy(RAND_POOL *pool)
60 /* determine the number of items in the JPI array */
61 struct items_data_st item_entry;
62 int item_entry_count = OSSL_NELEM(items_data);
63 /* Create the JPI itemlist array to hold item_data content */
68 } item[item_entry_count], *pitem;
69 struct items_data_st *pitems_data;
70 int data_buffer[(item_entry_count * 2) + 4]; /* 8 bytes per entry max */
78 /* Setup itemlist for GETJPI */
79 pitems_data = items_data;
80 for (pitem = item; pitems_data->length != 0; pitem++) {
81 pitem->length = pitems_data->length;
82 pitem->code = pitems_data->code;
83 pitem->buffer = &data_buffer[total_length];
85 /* total_length is in longwords */
86 total_length += pitems_data->length / 4;
89 pitem->length = pitem->code = 0;
91 /* Fill data_buffer with various info bits from this process */
92 if (sys$getjpiw(EFN$C_ENF, NULL, NULL, item, &iosb, 0, 0) != SS$_NORMAL)
95 /* Now twist that data to seed the SSL random number init */
96 for (i = 0; i < total_length; i++) {
97 sys$gettim((struct _generic_64 *)&sys_time[0]);
98 srand(sys_time[0] * data_buffer[0] * data_buffer[1] + i);
100 if (i == (total_length - 1)) { /* for JPI$_FINALEXC */
101 ptr = &data_buffer[i];
102 for (j = 0; j < 4; j++) {
103 data_buffer[i + j] = ptr[j];
104 /* OK to use rand() just to scramble the seed */
105 data_buffer[i + j] ^= (sys_time[0] ^ rand());
109 /* OK to use rand() just to scramble the seed */
110 data_buffer[i] ^= (sys_time[0] ^ rand());
114 total_length += (tmp_length - 1);
117 * Size of seed is total_length*4 bytes (64bytes). The original assumption
118 * was that it contains 4 bits of entropy per byte. This makes a total
119 * amount of total_length*16 bits (256bits).
121 return rand_pool_add(pool,
122 (PTR_T)data_buffer, total_length * 4,