int
replay_remove (munge_cred_t c)
{
/* Removes the credential [c] from the replay hash.
*/
m_msg_t m = c->msg;
union replay_key rkey_st;
replay_t rkey = &rkey_st;
replay_t r;
if (!replay_hash) {
if (conf->got_benchmark)
return (0);
errno = EPERM;
return (-1);
}
/* Compute the cred's "hash key".
*/
rkey->data.t_expired = (time_t) (m->time0 + m->ttl);
assert (c->mac_len >= sizeof (rkey->data.mac));
memcpy (rkey->data.mac, c->mac, sizeof (rkey->data.mac));
if ((r = hash_remove (replay_hash, rkey))) {
replay_free (r);
}
return (r ? 0 : -1);
}
void nes_free(NES *nes)
{
// disable ndb debugging will make cpu keep running
ndb_set_debug(&(nes->ndb), NDB_DEBUG_MODE_DISABLE);
// destroy nes thread
nes->thread_exit = TRUE;
pthread_join(nes->thread_id, NULL);
// free replay
replay_free(&(nes->replay));
// free joypad
joypad_setkey(&(nes->pad), 0, NES_PAD_CONNECT, 0);
joypad_setkey(&(nes->pad), 1, NES_PAD_CONNECT, 0);
joypad_free (&(nes->pad ));
// free cpu & ppu & apu & mmc
cpu_free(&(nes->cpu));
ppu_free(&(nes->ppu));
apu_free(&(nes->apu));
mmc_free(&(nes->mmc));
ndb_free(&(nes->ndb));
// free cartridge
cartridge_free(&(nes->cart));
log_done(); // log done
}
int
replay_insert (munge_cred_t c)
{
/* Inserts the credential [c] into the replay hash.
* The credential is identified by the first N bytes of the MAC, where N
* is the minimum message digest length used by MUNGE. Limiting the MAC
* length here helps to reduce the replay cache memory requirements.
* Returns 0 if the credential is successfully inserted.
* Returns 1 if the credential is already present (ie, replay).
* Returns -1 on error with errno set.
*/
m_msg_t m = c->msg;
int e;
replay_t r;
if (!replay_hash) {
if (conf->got_benchmark)
return (0);
errno = EPERM;
return (-1);
}
if (!(r = replay_alloc ())) {
return (-1);
}
r->data.t_expired = (time_t) (m->time0 + m->ttl);
assert (c->mac_len >= sizeof (r->data.mac));
memcpy (r->data.mac, c->mac, sizeof (r->data.mac));
/*
* The replay hash key is just the replay struct itself.
*/
if (hash_insert (replay_hash, r, r) != NULL) {
return (0);
}
e = errno;
replay_free (r);
if (e == EEXIST) {
return (1);
}
if (e == EINVAL) {
log_err (EMUNGE_SNAFU, LOG_ERR,
"Attempted to insert cred into hash using invalid args");
}
return (-1);
}
