Lines Matching defs:prng

314 crypto_prng_seed(struct crypto_prng *prng, const void *seed)
317 	(void)memcpy(prng->state, seed, crypto_prng_SEEDBYTES);
321 crypto_prng_buf(struct crypto_prng *prng, void *buf, size_t n)
327 	__CTASSERT(sizeof prng->state + crypto_prng_MAXOUTPUTBYTES
330 	crypto_core(output, nonce, prng->state, crypto_core_constant32);
331 	(void)memcpy(prng->state, output, sizeof prng->state);
332 	(void)memcpy(buf, output + sizeof prng->state, n);
462 arc4random_prng_addrandom(struct arc4random_prng *prng, const void *data,
475 	crypto_prng_buf(&prng->arc4_prng, buf, sizeof buf);
490 	/* reseed(SHA256(prng() || sysctl(KERN_ARND) || data)) */
491 	crypto_prng_seed(&prng->arc4_prng, buf);
493 	prng->arc4_epoch = epoch;
500 	struct arc4random_prng *prng;
501 	const size_t size = roundup(sizeof(*prng), sysconf(_SC_PAGESIZE));
503 	prng = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1,
505 	if (prng == MAP_FAILED)
507 	if (minherit(prng, size, MAP_INHERIT_ZERO) == -1)
510 	return prng;
512 fail1:	(void)munmap(prng, size);
519 arc4random_prng_destroy(struct arc4random_prng *prng)
521 	const size_t size = roundup(sizeof(*prng), sysconf(_SC_PAGESIZE));
523 	(void)explicit_memset(prng, 0, sizeof(*prng));
524 	(void)munmap(prng, size);
542 	(void)explicit_memset(&arc4random_global.prng, 0,
543 	    sizeof arc4random_global.prng);
564 	struct arc4random_prng *const prng = p;
566 	arc4random_prng_destroy(prng);
595 	struct arc4random_prng *prng = NULL;
603 	prng = thr_getspecific(arc4random_global.thread_key);
604 	if (__predict_false(prng == NULL)) {
605 		prng = arc4random_prng_create();
606 		thr_setspecific(arc4random_global.thread_key, prng);
611 	if (__predict_false(prng == NULL)) {
613 		prng = &arc4random_global.prng;
617 	if (__predict_false(prng->arc4_epoch != entropy_epoch()))
618 		arc4random_prng_addrandom(prng, NULL, 0);
620 	return prng;
624 arc4random_prng_put(struct arc4random_prng *prng)
628 	if (__predict_false(prng == &arc4random_global.prng))
637 	struct arc4random_prng *prng;
640 	prng = arc4random_prng_get();
641 	crypto_prng_buf(&prng->arc4_prng, &v, sizeof v);
642 	arc4random_prng_put(prng);
650 	struct arc4random_prng *prng;
653 		prng = arc4random_prng_get();
654 		crypto_prng_buf(&prng->arc4_prng, buf, len);
655 		arc4random_prng_put(prng);
659 		prng = arc4random_prng_get();
660 		crypto_prng_buf(&prng->arc4_prng, seed, sizeof seed);
661 		arc4random_prng_put(prng);
671 	struct arc4random_prng *prng;
691 	prng = arc4random_prng_get();
692 	do crypto_prng_buf(&prng->arc4_prng, &r, sizeof r);
694 	arc4random_prng_put(prng);
702 	struct arc4random_prng *prng;
704 	prng = arc4random_prng_get();
705 	arc4random_prng_addrandom(prng, NULL, 0);
706 	arc4random_prng_put(prng);
716 	struct arc4random_prng *prng;
720 	prng = arc4random_prng_get();
721 	arc4random_prng_addrandom(prng, data, datalen);
722 	arc4random_prng_put(prng);
806 		struct arc4random_prng *prng = NULL;
808 		prng = thr_getspecific(arc4random_global.thread_key);
810 		if (prng == NULL)
811 			prng = &arc4random_global.prng;
812 		_exit(prng->arc4_epoch != 0);