static PyObject* qd_set_valid_origins(PyObject *self, PyObject *args)
{
RouterAdapter *adapter = (RouterAdapter*) self;
qd_router_t *router = adapter->router;
int router_maskbit;
PyObject *origin_list;
Py_ssize_t idx;
char *error = 0;
if (!PyArg_ParseTuple(args, "iO", &router_maskbit, &origin_list))
return 0;
do {
if (router_maskbit >= qd_bitmask_width() || router_maskbit < 0) {
error = "Router bit mask out of range";
break;
}
if (!PyList_Check(origin_list)) {
error = "Expected List as argument 2";
break;
}
Py_ssize_t origin_count = PyList_Size(origin_list);
qd_bitmask_t *core_bitmask = qd_bitmask(0);
int maskbit;
for (idx = 0; idx < origin_count; idx++) {
maskbit = PyInt_AS_LONG(PyList_GetItem(origin_list, idx));
if (maskbit >= qd_bitmask_width() || maskbit < 0) {
error = "Origin bit mask out of range";
break;
}
}
if (error == 0) {
qd_bitmask_set_bit(core_bitmask, 0); // This router is a valid origin for all destinations
for (idx = 0; idx < origin_count; idx++) {
maskbit = PyInt_AS_LONG(PyList_GetItem(origin_list, idx));
qd_bitmask_set_bit(core_bitmask, maskbit);
}
} else {
qd_bitmask_free(core_bitmask);
break;
}
qdr_core_set_valid_origins(router->router_core, router_maskbit, core_bitmask);
} while (0);
if (error) {
PyErr_SetString(PyExc_Exception, error);
return 0;
}
Py_INCREF(Py_None);
return Py_None;
}
static void qdr_map_destination_CT(qdr_core_t *core, qdr_action_t *action, bool discard)
{
//
// TODO - handle the class-prefix and phase explicitly
//
int router_maskbit = action->args.route_table.router_maskbit;
qdr_field_t *address = action->args.route_table.address;
if (discard) {
qdr_field_free(address);
return;
}
do {
if (router_maskbit >= qd_bitmask_width() || router_maskbit < 0) {
qd_log(core->log, QD_LOG_CRITICAL, "map_destination: Router maskbit out of range: %d", router_maskbit);
break;
}
if (core->routers_by_mask_bit[router_maskbit] == 0) {
qd_log(core->log, QD_LOG_CRITICAL, "map_destination: Router not found");
break;
}
qd_field_iterator_t *iter = address->iterator;
qdr_address_t *addr = 0;
qd_hash_retrieve(core->addr_hash, iter, (void**) &addr);
if (!addr) {
addr = qdr_address_CT(core, qdr_treatment_for_address_hash_CT(core, iter));
qd_hash_insert(core->addr_hash, iter, addr, &addr->hash_handle);
DEQ_ITEM_INIT(addr);
DEQ_INSERT_TAIL(core->addrs, addr);
}
qdr_node_t *rnode = core->routers_by_mask_bit[router_maskbit];
qd_bitmask_set_bit(addr->rnodes, router_maskbit);
rnode->ref_count++;
qdr_addr_start_inlinks_CT(core, addr);
//
// TODO - If this affects a waypoint, create the proper side effects
//
} while (false);
qdr_field_free(address);
}
qd_bitmask_t *qd_tracemask_create(qd_tracemask_t *tm, qd_parsed_field_t *tracelist)
{
qd_bitmask_t *bm = qd_bitmask(0);
int idx = 0;
assert(qd_parse_is_list(tracelist));
sys_rwlock_rdlock(tm->lock);
qd_parsed_field_t *item = qd_parse_sub_value(tracelist, idx);
qdtm_router_t *router = 0;
while (item) {
qd_field_iterator_t *iter = qd_parse_raw(item);
qd_address_iterator_reset_view(iter, ITER_VIEW_NODE_HASH);
qd_hash_retrieve(tm->hash, iter, (void*) &router);
if (router && router->link_maskbit >= 0)
qd_bitmask_set_bit(bm, router->link_maskbit);
idx++;
item = qd_parse_sub_value(tracelist, idx);
}
sys_rwlock_unlock(tm->lock);
return bm;
}
static void qdr_add_router_CT(qdr_core_t *core, qdr_action_t *action, bool discard)
{
int router_maskbit = action->args.route_table.router_maskbit;
qdr_field_t *address = action->args.route_table.address;
if (discard) {
qdr_field_free(address);
return;
}
do {
if (router_maskbit >= qd_bitmask_width() || router_maskbit < 0) {
qd_log(core->log, QD_LOG_CRITICAL, "add_router: Router maskbit out of range: %d", router_maskbit);
break;
}
if (core->routers_by_mask_bit[router_maskbit] != 0) {
qd_log(core->log, QD_LOG_CRITICAL, "add_router: Router maskbit already in use: %d", router_maskbit);
break;
}
//
// Hash lookup the address to ensure there isn't an existing router address.
//
qd_field_iterator_t *iter = address->iterator;
qdr_address_t *addr;
qd_address_iterator_reset_view(iter, ITER_VIEW_ADDRESS_HASH);
qd_hash_retrieve(core->addr_hash, iter, (void**) &addr);
if (addr) {
qd_log(core->log, QD_LOG_CRITICAL, "add_router: Data inconsistency for router-maskbit %d", router_maskbit);
assert(addr == 0); // Crash in debug mode. This should never happen
break;
}
//
// Create an address record for this router and insert it in the hash table.
// This record will be found whenever a "foreign" topological address to this
// remote router is looked up.
//
addr = qdr_address_CT(core, QD_TREATMENT_ANYCAST_CLOSEST);
qd_hash_insert(core->addr_hash, iter, addr, &addr->hash_handle);
DEQ_INSERT_TAIL(core->addrs, addr);
//
// Create a router-node record to represent the remote router.
//
qdr_node_t *rnode = new_qdr_node_t();
DEQ_ITEM_INIT(rnode);
rnode->owning_addr = addr;
rnode->mask_bit = router_maskbit;
rnode->next_hop = 0;
rnode->peer_control_link = 0;
rnode->peer_data_link = 0;
rnode->ref_count = 0;
rnode->valid_origins = qd_bitmask(0);
DEQ_INSERT_TAIL(core->routers, rnode);
//
// Link the router record to the address record.
//
qd_bitmask_set_bit(addr->rnodes, router_maskbit);
//
// Link the router record to the router address records.
// Use the T-class addresses only.
//
qd_bitmask_set_bit(core->router_addr_T->rnodes, router_maskbit);
qd_bitmask_set_bit(core->routerma_addr_T->rnodes, router_maskbit);
//
// Bump the ref-count by three for each of the above links.
//
rnode->ref_count += 3;
//
// Add the router record to the mask-bit index.
//
core->routers_by_mask_bit[router_maskbit] = rnode;
} while (false);
qdr_field_free(address);
}
