lib/libkern/entpool.c

64  * integer i in [0, RATE-1] indicating where to write the next byte in
95 #define	RATE		ENTPOOL_RATE
139 	ASSERT(P->i <= RATE-1);
143 		if (P->i == RATE-1)
145 		ASSERT(P->i < RATE-1);
152 		if (P->i == RATE-1)
154 		ASSERT(P->i < RATE-1);
159 	if (P->i == RATE-1)
161 	ASSERT(P->i < RATE-1);
187 	ASSERT(P->i <= RATE-1);
190 	if (P->i == RATE-1)
192 	ASSERT(P->i < RATE-1);
199 	n = n0 = MIN(127, MIN(len, RATE-1 - P->i - 1));
204 	/* Can't guarantee anything better than 0 <= i <= RATE-1.  */
205 	ASSERT(P->i <= RATE-1);
222 	ASSERT(P->i <= RATE-1);
225 	if (P->i == RATE-1)
227 	ASSERT(P->i < RATE-1);
246 	ASSERT(P->i <= RATE-1);
254 	 * Copy out and zero (RATE-1)-sized chunks at a time, stirring
257 	while (n >= RATE-1) {
258 		memcpy(p, P->s.u8, RATE-1);
259 		memset(P->s.u8, 0, RATE-1);
260 		P->s.u8[RATE-1] ^= 0x80;
262 		p += RATE-1;
263 		n -= RATE-1;
272 		ASSERT(n < RATE-1);
274 		memset(P->s.u8, 0, RATE-1);	/* Zero all of it. */
275 		P->s.u8[RATE-1] ^= 0x80;
424 	uint8_t scratch[RATE];
425 	const uint8_t zero[RATE] = {0};
438 	entpool_enter(P, zero, RATE-3);
440 	entpool_enter(P, zero, RATE-4);
451 	if (!entpool_enter_nostir(P, zero, RATE-2))
456 	if (!entpool_enter_nostir(P, zero, RATE-2 - 127 - 1))
468 	if (!entpool_enter_nostir(P, zero, RATE-2))
471 	CTASSERT(127 <= RATE-2);
474 	if (!entpool_enter_nostir(P, zero, RATE-2 - 127 - 1))
494 	entpool_enter(P, zero, RATE-3);
496 	entpool_enter(P, zero, RATE-4);
508 	if (!entpool_enter_nostir(P, zero, RATE-2))
511 	CTASSERT(127 <= RATE-2);
514 	if (!entpool_enter_nostir(P, zero, RATE-2 - 127 - 1))
527 	if (!entpool_enter_nostir(P, zero, RATE-2))
530 	CTASSERT(127 <= RATE-2);
533 	if (!entpool_enter_nostir(P, zero, RATE-2 - 127 - 1))
558 	if (!entpool_enter_nostir(P, zero, RATE-2))
561 	CTASSERT(127 <= RATE-2);
564 	if (!entpool_enter_nostir(P, zero, RATE-2 - 127 - 1))
572 	entpool_extract(P, scratch, RATE-1 + 1);
612 	uint8_t b[RATE-1];
623 		{IN, {RATE-3, [RATE-2] = 1}},
625 		{IN, {0x80|((RATE-4)&0x7f), (RATE-4)>>7, [RATE-2] = 1}},
632 		{IN, {RATE-2}},
634 		{IN, {127, [128] = RATE-2 - 127 - 1}},
641 		{IN, {RATE-2}},
643 		{IN, {127, [128] = RATE-2 - 127 - 1}},
656 		{IN, {RATE-3, [RATE-2] = 0 /* truncated length */}},
658 		{IN, {0x80|((RATE-4)&0x7f), (RATE-4)>>7,
659 		      [RATE-2] = 0 /* truncated length */}},
665 		{IN, {RATE-2}},
667 		{IN, {127, [128] = RATE-2 - 127 - 1}},
673 		{IN, {RATE-2}},
675 		{IN, {127, [128] = RATE-2 - 127 - 1}},
689 		{IN, {RATE-2}},
691 		{IN, {127, [128] = RATE-2 - 127 - 1}},
724 			memset(u.b, 0, RATE-1);
725 			u.b[RATE-1] ^= 0x80;