/*
* Find a few nodes to destroy if possible.
*/
static void
cleanup_ring(dns_tsig_keyring_t *ring)
{
isc_result_t result;
dns_rbtnodechain_t chain;
dns_name_t foundname;
dns_fixedname_t fixedorigin;
dns_name_t *origin;
isc_stdtime_t now;
dns_rbtnode_t *node;
dns_tsigkey_t *tkey;
/*
* Start up a new iterator each time.
*/
isc_stdtime_get(&now);
dns_name_init(&foundname, NULL);
dns_fixedname_init(&fixedorigin);
origin = dns_fixedname_name(&fixedorigin);
again:
dns_rbtnodechain_init(&chain, ring->mctx);
result = dns_rbtnodechain_first(&chain, ring->keys, &foundname,
origin);
if (result != ISC_R_SUCCESS && result != DNS_R_NEWORIGIN) {
dns_rbtnodechain_invalidate(&chain);
return;
}
for (;;) {
node = NULL;
dns_rbtnodechain_current(&chain, &foundname, origin, &node);
tkey = node->data;
if (tkey != NULL) {
if (tkey->generated
&& isc_refcount_current(&tkey->refs) == 1
&& tkey->inception != tkey->expire
&& tkey->expire < now) {
tsig_log(tkey, 2, "tsig expire: deleting");
/* delete the key */
dns_rbtnodechain_invalidate(&chain);
remove_fromring(tkey);
goto again;
}
}
result = dns_rbtnodechain_next(&chain, &foundname,
origin);
if (result != ISC_R_SUCCESS && result != DNS_R_NEWORIGIN) {
dns_rbtnodechain_invalidate(&chain);
return;
}
}
}
static inline void
destroy(dns_view_t *view) {
dns_dns64_t *dns64;
dns_dlzdb_t *dlzdb;
REQUIRE(!ISC_LINK_LINKED(view, link));
REQUIRE(isc_refcount_current(&view->references) == 0);
REQUIRE(view->weakrefs == 0);
REQUIRE(RESSHUTDOWN(view));
REQUIRE(ADBSHUTDOWN(view));
REQUIRE(REQSHUTDOWN(view));
if (view->order != NULL)
dns_order_detach(&view->order);
if (view->peers != NULL)
dns_peerlist_detach(&view->peers);
if (view->dynamickeys != NULL) {
isc_result_t result;
char template[20];
/**
* Get current MetaLDAP generation number.
*
* Generation numbers have to be compared using isc_serial_* functions.
*/
isc_uint32_t
mldap_cur_generation_get(mldapdb_t *mldap) {
return (isc_uint32_t)isc_refcount_current(&mldap->generation);
}
void mldap_cur_generation_bump(mldapdb_t *mldap) {
REQUIRE(mldap != NULL);
isc_refcount_increment0(&mldap->generation, NULL);
}
/*
* Verify that isc_refcount_t can be casted properly to isc_uint32_t
* so isc_serial_* functions can be safely used for comparison.
*
* The spell 'typeof(isc_refcount_current((isc_refcount_t *)0))' walks through
* isc_refcount_t abstractions and returns underlying type used for storing the
* reference counter value.
*/
STATIC_ASSERT((isc_uint32_t)
(typeof(isc_refcount_current((isc_refcount_t *)0)))
-1
== 0xFFFFFFFF, \
"negative isc_refcount_t cannot be properly shortened to 32 bits");
STATIC_ASSERT((isc_uint32_t)
(typeof(isc_refcount_current((isc_refcount_t *)0)))
0x90ABCDEF12345678
== 0x12345678, \
"positive isc_refcount_t cannot be properly shortened to 32 bits");
/**
* Get current MetaLDAP generation number.
*
* Generation numbers have to be compared using isc_serial_* functions.
*/