bool test_randLIB_get_8bit()
{
randLIB_seed_random();
uint8_t test = randLIB_get_8bit();
if( test == 0 ) {
test = randLIB_get_8bit();
if( test == 0 ) {
return false;
}
}
return true;
}
void pana_session_base_init(pana_session_t *p_session)
{
memset(p_session, 0, sizeof(pana_session_t));
p_session->session_ready = false;
p_session->key_warp = false;
p_session->user_server = false;
p_session->eap_id_seq = randLIB_get_8bit(); //Take Random EAP ID
}
pana_session_t *pana_session_allocate(void)
{
pana_session_t *p_session = ns_dyn_mem_alloc(sizeof(pana_session_t));
if (p_session) {
memset(p_session, 0, sizeof(pana_session_t));
p_session->session_ready = false;
p_session->key_warp = false;
p_session->user_server = false;
p_session->eap_id_seq = randLIB_get_8bit(); //Take Random EAP ID
}
return p_session;
}
/**
* Get a random array of bytes.
* Called back by mbedtls when it wants to fill a buffer with random data
* Must return 0 on success.
*/
static int get_random(void *ctx, unsigned char *buf, size_t len)
{
static int initialised = 0;
uint32_t i;
(void)ctx; /* No context */
if (!initialised) {
randLIB_seed_random();
initialised = 1;
}
for (i = 0; i < len; i++) {
buf[i] = (uint8_t)randLIB_get_8bit();
}
return 0; /* Success */
}
int entropy_poll( void *ctx, unsigned char *output, size_t len,
size_t *olen )
{
(void)ctx;
//TODO: change to more secure random
randLIB_seed_random();
char *c = (char*)ns_dyn_mem_temporary_alloc(len);
if( !c ){
return MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
}
memset(c, 0, len);
for(uint16_t i=0; i < len; i++){
*(c + i) = (char)randLIB_get_8bit();
}
memmove(output, c, len);
*olen = len;
ns_dyn_mem_free(c);
return( 0 );
}
