65 	size_t resid, todo, inlen, outlen;  in ossl_chacha20()  local
103 		todo = rounddown(MIN(resid, MIN(inlen, outlen)),  in ossl_chacha20()
108 		todo = (uint32_t)todo;  in ossl_chacha20()
112 		next_counter = counter[0] + todo / CHACHA_BLK_SIZE;  in ossl_chacha20()
114 			todo -= next_counter * CHACHA_BLK_SIZE;  in ossl_chacha20()
118 		ChaCha20_ctr32(out, in, todo, key, counter);  in ossl_chacha20()
128 			crypto_cursor_advance(&cc_out, todo);  in ossl_chacha20()
129 			outseg += todo;  in ossl_chacha20()
130 			outlen -= todo;  in ossl_chacha20()
135 			crypto_cursor_advance(&cc_in, todo);  in ossl_chacha20()
136 			inseg += todo;  in ossl_chacha20()
137 			inlen -= todo;  in ossl_chacha20()
139 		resid -= todo;  in ossl_chacha20()
167 	size_t resid, todo, inlen, outlen;  in ossl_chacha20_poly1305_encrypt()  local
231 		todo = rounddown(MIN(resid, MIN(inlen, outlen)),  in ossl_chacha20_poly1305_encrypt()
236 		todo = (uint32_t)todo;  in ossl_chacha20_poly1305_encrypt()
240 		next_counter = counter[0] + todo / CHACHA_BLK_SIZE;  in ossl_chacha20_poly1305_encrypt()
242 			todo -= next_counter * CHACHA_BLK_SIZE;  in ossl_chacha20_poly1305_encrypt()
246 		ChaCha20_ctr32(out, in, todo, key, counter);  in ossl_chacha20_poly1305_encrypt()
247 		Poly1305_Update(&auth_ctx, out, todo);  in ossl_chacha20_poly1305_encrypt()
257 			crypto_cursor_advance(&cc_out, todo);  in ossl_chacha20_poly1305_encrypt()
258 			outseg += todo;  in ossl_chacha20_poly1305_encrypt()
259 			outlen -= todo;  in ossl_chacha20_poly1305_encrypt()
264 			crypto_cursor_advance(&cc_in, todo);  in ossl_chacha20_poly1305_encrypt()
265 			inseg += todo;  in ossl_chacha20_poly1305_encrypt()
266 			inlen -= todo;  in ossl_chacha20_poly1305_encrypt()
268 		resid -= todo;  in ossl_chacha20_poly1305_encrypt()
278 		todo = roundup2(resid, 16);  in ossl_chacha20_poly1305_encrypt()
279 		memset(block + resid, 0, todo - resid);  in ossl_chacha20_poly1305_encrypt()
280 		Poly1305_Update(&auth_ctx, block, todo);  in ossl_chacha20_poly1305_encrypt()
313 	size_t resid, todo, inlen, outlen;  in ossl_chacha20_poly1305_decrypt()  local
400 		todo = rounddown(MIN(resid, MIN(inlen, outlen)),  in ossl_chacha20_poly1305_decrypt()
405 		todo = (uint32_t)todo;  in ossl_chacha20_poly1305_decrypt()
409 		next_counter = counter[0] + todo / CHACHA_BLK_SIZE;  in ossl_chacha20_poly1305_decrypt()
411 			todo -= next_counter * CHACHA_BLK_SIZE;  in ossl_chacha20_poly1305_decrypt()
415 		ChaCha20_ctr32(out, in, todo, key, counter);  in ossl_chacha20_poly1305_decrypt()
425 			crypto_cursor_advance(&cc_out, todo);  in ossl_chacha20_poly1305_decrypt()
426 			outseg += todo;  in ossl_chacha20_poly1305_decrypt()
427 			outlen -= todo;  in ossl_chacha20_poly1305_decrypt()
432 			crypto_cursor_advance(&cc_in, todo);  in ossl_chacha20_poly1305_decrypt()
433 			inseg += todo;  in ossl_chacha20_poly1305_decrypt()
434 			inlen -= todo;  in ossl_chacha20_poly1305_decrypt()
436 		resid -= todo;  in ossl_chacha20_poly1305_decrypt()