85 	int i, k, j, blks, ivlen;  in swcr_encdec()  local
90 	blks = exf->blocksize;  in swcr_encdec()
94 	if (crd->crd_len % blks)  in swcr_encdec()
169 			if (m->m_len < k + blks && m->m_len != k) {  in swcr_encdec()
170 				m_copydata(m, k, blks, blk);  in swcr_encdec()
183 					for (j = 0; j < blks; j++)  in swcr_encdec()
192 					bcopy(blk, iv, blks);  in swcr_encdec()
200 					bcopy(blk, nivp, blks);  in swcr_encdec()
205 					for (j = 0; j < blks; j++)  in swcr_encdec()
212 				m_copyback(m, k, blks, blk);  in swcr_encdec()
215 				m = m_getptr(m, k + blks, &k);  in swcr_encdec()
221 				i -= blks;  in swcr_encdec()
249 			while (m->m_len >= k + blks && i > 0) {  in swcr_encdec()
260 					for (j = 0; j < blks; j++)  in swcr_encdec()
271 					bcopy(idat, nivp, blks);  in swcr_encdec()
276 					for (j = 0; j < blks; j++)  in swcr_encdec()
282 				idat += blks;  in swcr_encdec()
283 				k += blks;  in swcr_encdec()
284 				i -= blks;  in swcr_encdec()
306 			if (iov->iov_len < k + blks && iov->iov_len != k) {  in swcr_encdec()
307 				cuio_copydata(uio, k, blks, blk);  in swcr_encdec()
320 					for (j = 0; j < blks; j++)  in swcr_encdec()
329 					bcopy(blk, iv, blks);  in swcr_encdec()
337 					bcopy(blk, nivp, blks);  in swcr_encdec()
342 					for (j = 0; j < blks; j++)  in swcr_encdec()
349 				cuio_copyback(uio, k, blks, blk);  in swcr_encdec()
352 				iov = cuio_getptr(uio, k + blks, &k);  in swcr_encdec()
358 				i -= blks;  in swcr_encdec()
372 			while (iov->iov_len >= k + blks && i > 0) {  in swcr_encdec()
383 					for (j = 0; j < blks; j++)  in swcr_encdec()
394 					bcopy(idat, nivp, blks);  in swcr_encdec()
399 					for (j = 0; j < blks; j++)  in swcr_encdec()
405 				idat += blks;  in swcr_encdec()
406 				k += blks;  in swcr_encdec()
407 				i -= blks;  in swcr_encdec()
421 			    i < crd->crd_skip + crd->crd_len; i += blks) {  in swcr_encdec()
430 			    i < crd->crd_skip + crd->crd_len; i += blks) {  in swcr_encdec()
433 					for (k = 0; k < blks; k++)  in swcr_encdec()
436 					for (k = 0; k < blks; k++)  in swcr_encdec()
437 						buf[i + k] ^= buf[i + k - blks];  in swcr_encdec()
445 			for (i = crd->crd_skip + crd->crd_len - blks;  in swcr_encdec()
446 			    i >= crd->crd_skip; i -= blks) {  in swcr_encdec()
451 					for (k = 0; k < blks; k++)  in swcr_encdec()
454 					for (k = 0; k < blks; k++)  in swcr_encdec()
455 						buf[i + k] ^= buf[i + k - blks];  in swcr_encdec()