171 init_state(FState * st)  in init_state()  argument
175     memset(st, 0, sizeof(*st));  in init_state()
177 	md_init(&st->pool[i]);  in init_state()
178     st->pid = getpid();  in init_state()
186 inc_counter(FState * st)  in inc_counter()  argument
188     uint32_t   *val = (uint32_t *) st->counter;  in inc_counter()
203 encrypt_counter(FState * st, unsigned char *dst)  in encrypt_counter()  argument
205     ciph_encrypt(&st->ciph, st->counter, dst);  in encrypt_counter()
206     inc_counter(st);  in encrypt_counter()
215 enough_time_passed(FState * st)  in enough_time_passed()  argument
219     struct timeval *last = &st->last_reseed_time;  in enough_time_passed()
248 reseed(FState * st)  in reseed()  argument
256     st->pool0_bytes = 0;  in reseed()
261     n = ++st->reseed_count;  in reseed()
269 	md_result(&st->pool[k], buf);  in reseed()
278     md_update(&key_md, st->key, BLOCK);  in reseed()
281     md_update(&key_md, (const unsigned char *)&st->pid, sizeof(st->pid));  in reseed()
284     md_result(&key_md, st->key);  in reseed()
287     ciph_init(&st->ciph, st->key, BLOCK);  in reseed()
297 get_rand_pool(FState * st)  in get_rand_pool()  argument
304     rnd = st->key[st->rnd_pos] % NUM_POOLS;  in get_rand_pool()
306     st->rnd_pos++;  in get_rand_pool()
307     if (st->rnd_pos >= BLOCK)  in get_rand_pool()
308 	st->rnd_pos = 0;  in get_rand_pool()
317 add_entropy(FState * st, const unsigned char *data, unsigned len)  in add_entropy()  argument
331     if (st->reseed_count == 0)  in add_entropy()
334 	pos = get_rand_pool(st);  in add_entropy()
335     md_update(&st->pool[pos], hash, BLOCK);  in add_entropy()
338 	st->pool0_bytes += len;  in add_entropy()
348 rekey(FState * st)  in rekey()  argument
350     encrypt_counter(st, st->key);  in rekey()
351     encrypt_counter(st, st->key + CIPH_BLOCK);  in rekey()
352     ciph_init(&st->ciph, st->key, BLOCK);  in rekey()
362 startup_tricks(FState * st)  in startup_tricks()  argument
368     encrypt_counter(st, st->counter);  in startup_tricks()
373 	encrypt_counter(st, buf);  in startup_tricks()
374 	encrypt_counter(st, buf + CIPH_BLOCK);  in startup_tricks()
375 	md_update(&st->pool[i], buf, BLOCK);  in startup_tricks()
380     rekey(st);  in startup_tricks()
383     st->tricks_done = 1;  in startup_tricks()
387 extract_data(FState * st, unsigned count, unsigned char *dst)  in extract_data()  argument
394     if (st->pool0_bytes >= POOL0_FILL || st->reseed_count == 0)  in extract_data()
395 	if (enough_time_passed(st))  in extract_data()
396 	    reseed(st);  in extract_data()
399     if (!st->tricks_done)  in extract_data()
400 	startup_tricks(st);  in extract_data()
403     if (pid != st->pid) {  in extract_data()
404 	st->pid = pid;  in extract_data()
405 	reseed(st);  in extract_data()
411 	encrypt_counter(st, st->result);  in extract_data()
418 	memcpy(dst, st->result, n);  in extract_data()
426 	    rekey(st);  in extract_data()
431     rekey(st);  in extract_data()