8  * This random number generator is used to provide additional entropy to the
62 static unsigned int entropy = 0;  variable
137 	if (entropy > MIN_COLLECT_ENTROPY && (count & 0x3ff) != 0) {  in random_add_randomness()
139 		 * No need to add more entropy at this point, so save CPU and  in random_add_randomness()
144 	wpa_printf(MSG_EXCESSIVE, "Add randomness: count=%u entropy=%u",  in random_add_randomness()
145 		   count, entropy);  in random_add_randomness()
154 	entropy++;  in random_add_randomness()
165 	wpa_printf(MSG_MSGDUMP, "Get randomness: len=%u entropy=%u",  in random_get_bytes()
166 		   (unsigned int) len, entropy);  in random_get_bytes()
173 	/* Mix in additional entropy extracted from the internal pool */  in random_get_bytes()
188 	/* Mix in additional entropy from the crypto module */  in random_get_bytes()
195 			wpa_printf(MSG_ERROR, "random: No entropy available "  in random_get_bytes()
210 	if (entropy < len)  in random_get_bytes()
211 		entropy = 0;  in random_get_bytes()
213 		entropy -= len;  in random_get_bytes()
226 	 * Make sure that there is reasonable entropy available before allowing  in random_pool_ready()
295 			   "based on internal entropy");  in random_pool_ready()
299 	wpa_printf(MSG_INFO, "random: Not enough entropy pool available for "  in random_pool_ready()
312 	wpa_printf(MSG_DEBUG, "random: Mark internal entropy pool to be "  in random_mark_pool_ready()
373 		return; /* entropy file not yet available */  in random_read_entropy()
376 		wpa_printf(MSG_DEBUG, "random: Invalid entropy file %s",  in random_read_entropy()
385 	wpa_printf(MSG_DEBUG, "random: Added entropy from %s "  in random_read_entropy()
406 		wpa_printf(MSG_ERROR, "random: Could not open entropy file %s "  in random_write_entropy()
417 		wpa_printf(MSG_ERROR, "random: Could not write entropy data "  in random_write_entropy()
422 	wpa_printf(MSG_DEBUG, "random: Updated entropy file %s "  in random_write_entropy()
460 	wpa_printf(MSG_DEBUG, "random: Trying to read entropy from "  in random_init()