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- /*
- * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
- /*
- * Modified by VMS Software, Inc (2016)
- * Eliminate looping through all processes (performance)
- * Add additional randomizations using rand() function
- */
- #include <openssl/rand.h>
- #include "rand_lcl.h"
- #if defined(OPENSSL_SYS_VMS)
- # include <descrip.h>
- # include <jpidef.h>
- # include <ssdef.h>
- # include <starlet.h>
- # include <efndef>
- # ifdef __DECC
- # pragma message disable DOLLARID
- # endif
- /*
- * Use 32-bit pointers almost everywhere. Define the type to which to cast a
- * pointer passed to an external function.
- */
- # if __INITIAL_POINTER_SIZE == 64
- # define PTR_T __void_ptr64
- # pragma pointer_size save
- # pragma pointer_size 32
- # else /* __INITIAL_POINTER_SIZE == 64 */
- # define PTR_T void *
- # endif /* __INITIAL_POINTER_SIZE == 64 [else] */
- static struct items_data_st {
- short length, code; /* length is number of bytes */
- } items_data[] = {
- {4, JPI$_BUFIO},
- {4, JPI$_CPUTIM},
- {4, JPI$_DIRIO},
- {4, JPI$_IMAGECOUNT},
- {8, JPI$_LAST_LOGIN_I},
- {8, JPI$_LOGINTIM},
- {4, JPI$_PAGEFLTS},
- {4, JPI$_PID},
- {4, JPI$_PPGCNT},
- {4, JPI$_WSPEAK},
- {4, JPI$_FINALEXC},
- {0, 0} /* zero terminated */
- };
- int RAND_poll(void)
- {
- /* determine the number of items in the JPI array */
- struct items_data_st item_entry;
- int item_entry_count = sizeof(items_data)/sizeof(item_entry);
- /* Create the JPI itemlist array to hold item_data content */
- struct {
- short length, code;
- int *buffer;
- int *retlen;
- } item[item_entry_count], *pitem; /* number of entries in items_data */
- struct items_data_st *pitems_data;
- int data_buffer[(item_entry_count*2)+4]; /* 8 bytes per entry max */
- int iosb[2];
- int sys_time[2];
- int *ptr;
- int i, j ;
- int tmp_length = 0;
- int total_length = 0;
- pitems_data = items_data;
- pitem = item;
- /* Setup itemlist for GETJPI */
- while (pitems_data->length) {
- pitem->length = pitems_data->length;
- pitem->code = pitems_data->code;
- pitem->buffer = &data_buffer[total_length];
- pitem->retlen = 0;
- /* total_length is in longwords */
- total_length += pitems_data->length/4;
- pitems_data++;
- pitem ++;
- }
- pitem->length = pitem->code = 0;
- /* Fill data_buffer with various info bits from this process */
- /* and twist that data to seed the SSL random number init */
- if (sys$getjpiw(EFN$C_ENF, NULL, NULL, item, &iosb, 0, 0) == SS$_NORMAL) {
- for (i = 0; i < total_length; i++) {
- sys$gettim((struct _generic_64 *)&sys_time[0]);
- srand(sys_time[0] * data_buffer[0] * data_buffer[1] + i);
- if (i == (total_length - 1)) { /* for JPI$_FINALEXC */
- ptr = &data_buffer[i];
- for (j = 0; j < 4; j++) {
- data_buffer[i + j] = ptr[j];
- /* OK to use rand() just to scramble the seed */
- data_buffer[i + j] ^= (sys_time[0] ^ rand());
- tmp_length++;
- }
- } else {
- /* OK to use rand() just to scramble the seed */
- data_buffer[i] ^= (sys_time[0] ^ rand());
- }
- }
- total_length += (tmp_length - 1);
- /* size of seed is total_length*4 bytes (64bytes) */
- RAND_add((PTR_T) data_buffer, total_length*4, total_length * 2);
- } else {
- return 0;
- }
- return 1;
- }
- #endif
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