// ----- check_deflection_in_area -------------------------------------------
int check_deflection_in_area(uint16_t uOspfDomain, ospf_area_t tArea)
{
int iIndexI, iIndexJ;
/* Builds the set of BR that belongs to area and are on the backbone */
SPtrArray * pBRList = ospf_domain_get_br_on_bb_in_area(uOspfDomain, tArea);
net_node_t * pBR, * pER;
/* Build all possibile couple of border router in the set.
* For each couple build RSPT on ER
* */
for(iIndexI = 0; iIndexI < ptr_array_length(pBRList); iIndexI++) {
ptr_array_get_at(pBRList, iIndexI, &pBR);
for(iIndexJ = 0; iIndexJ < ptr_array_length(pBRList); iIndexJ++) {
if (iIndexI == iIndexJ)
continue;
ptr_array_get_at(pBRList, iIndexJ, &pER);
fprintf(stdout, "BR ");
ip_address_dump(stdout, pBR->tAddr);
fprintf(stdout, " - ER ");
ip_address_dump(stdout, pER->tAddr);
fprintf(stdout, "\n Computing rspt on ER\n");
SRadixTree * pRspt = ospf_node_compute_rspt(pER, uOspfDomain, tArea);
assert(pRspt != NULL);
SSptVertex * pBRVertex = radix_tree_get_exact(pRspt,
pBR->tAddr, 32);
assert(pBRVertex != NULL);
radix_tree_destroy(&pRspt);
}
}
return 0;
}
// ----- check_deflection ----------------------------------------------
int check_deflection(uint16_t IGPDomainNumber, cr_info_list_t tList) {
LOG_DEBUG("check actual deflection in domain %d\n", IGPDomainNumber);
int iIndex;
SCRouterInfo * pCRInfo;
for (iIndex = 0; iIndex < ptr_array_length(tList); iIndex++){
ptr_array_get_at(tList, iIndex, &pCRInfo);
fprintf(stdout, "CRInfo BR: ");
ip_address_dump(stdout, pCRInfo->pBR->tAddr);
fprintf(stdout, "\n");
fprintf(stdout, "ERInfo ER: ");
ip_address_dump(stdout, pCRInfo->pER->tAddr);
fprintf(stdout, "Compute RSPT on ER\n");
SRadixTree * pRspt = ospf_node_compute_rspt(pCRInfo->pER,
IGPDomainNumber,
pCRInfo->tArea);
assert(pRspt != NULL);
SSptVertex * pBRVertex = radix_tree_get_exact(pRspt,
pCRInfo->pBR->tAddr, 32);
assert(pBRVertex != NULL);
csource_check_deflection(pBRVertex, pCRInfo);
radix_tree_destroy(&pRspt);
//fprintf(stdout, "--- Per ogni dest in CRInfo\n");
//fprintf(stdout, "------- Trova route in routing table in foglia\n");
//fprintf(stdout, "------- if (advRouter(route) == ER(CRInfo) deflection!\n");
}
return 0;
}
/**
* Destroy a BGP domain.
*/
void bgp_domain_destroy(bgp_domain_t ** domain_ref)
{
if (*domain_ref != NULL) {
radix_tree_destroy(&((*domain_ref)->routers));
FREE(*domain_ref);
*domain_ref= NULL;
}
}
struct domain *domain_create(
domid_t domid, unsigned int domcr_flags, uint32_t ssidref)
{
struct domain *d, **pd;
enum { INIT_xsm = 1u<<0, INIT_watchdog = 1u<<1, INIT_rangeset = 1u<<2,
INIT_evtchn = 1u<<3, INIT_gnttab = 1u<<4, INIT_arch = 1u<<5 };
int err, init_status = 0;
int poolid = CPUPOOLID_NONE;
if ( (d = alloc_domain_struct()) == NULL )
return ERR_PTR(-ENOMEM);
d->domain_id = domid;
lock_profile_register_struct(LOCKPROF_TYPE_PERDOM, d, domid, "Domain");
if ( (err = xsm_alloc_security_domain(d)) != 0 )
goto fail;
init_status |= INIT_xsm;
watchdog_domain_init(d);
init_status |= INIT_watchdog;
atomic_set(&d->refcnt, 1);
spin_lock_init_prof(d, domain_lock);
spin_lock_init_prof(d, page_alloc_lock);
spin_lock_init(&d->hypercall_deadlock_mutex);
INIT_PAGE_LIST_HEAD(&d->page_list);
INIT_PAGE_LIST_HEAD(&d->xenpage_list);
spin_lock_init(&d->node_affinity_lock);
d->node_affinity = NODE_MASK_ALL;
d->auto_node_affinity = 1;
spin_lock_init(&d->shutdown_lock);
d->shutdown_code = -1;
err = -ENOMEM;
if ( !zalloc_cpumask_var(&d->domain_dirty_cpumask) )
goto fail;
if ( domcr_flags & DOMCRF_hvm )
d->is_hvm = 1;
if ( domid == 0 )
{
d->is_pinned = opt_dom0_vcpus_pin;
d->disable_migrate = 1;
}
rangeset_domain_initialise(d);
init_status |= INIT_rangeset;
d->iomem_caps = rangeset_new(d, "I/O Memory", RANGESETF_prettyprint_hex);
d->irq_caps = rangeset_new(d, "Interrupts", 0);
if ( (d->iomem_caps == NULL) || (d->irq_caps == NULL) )
goto fail;
if ( domcr_flags & DOMCRF_dummy )
return d;
if ( !is_idle_domain(d) )
{
if ( (err = xsm_domain_create(XSM_HOOK, d, ssidref)) != 0 )
goto fail;
d->is_paused_by_controller = 1;
atomic_inc(&d->pause_count);
if ( domid )
d->nr_pirqs = nr_static_irqs + extra_domU_irqs;
else
d->nr_pirqs = nr_static_irqs + extra_dom0_irqs;
if ( d->nr_pirqs > nr_irqs )
d->nr_pirqs = nr_irqs;
radix_tree_init(&d->pirq_tree);
if ( (err = evtchn_init(d)) != 0 )
goto fail;
init_status |= INIT_evtchn;
if ( (err = grant_table_create(d)) != 0 )
goto fail;
init_status |= INIT_gnttab;
poolid = 0;
err = -ENOMEM;
d->mem_event = xzalloc(struct mem_event_per_domain);
if ( !d->mem_event )
goto fail;
}
if ( (err = arch_domain_create(d, domcr_flags)) != 0 )
goto fail;
init_status |= INIT_arch;
if ( (err = cpupool_add_domain(d, poolid)) != 0 )
goto fail;
if ( (err = sched_init_domain(d)) != 0 )
goto fail;
if ( !is_idle_domain(d) )
{
spin_lock(&domlist_update_lock);
pd = &domain_list; /* NB. domain_list maintained in order of domid. */
for ( pd = &domain_list; *pd != NULL; pd = &(*pd)->next_in_list )
if ( (*pd)->domain_id > d->domain_id )
break;
d->next_in_list = *pd;
d->next_in_hashbucket = domain_hash[DOMAIN_HASH(domid)];
rcu_assign_pointer(*pd, d);
rcu_assign_pointer(domain_hash[DOMAIN_HASH(domid)], d);
spin_unlock(&domlist_update_lock);
}
return d;
fail:
d->is_dying = DOMDYING_dead;
atomic_set(&d->refcnt, DOMAIN_DESTROYED);
xfree(d->mem_event);
if ( init_status & INIT_arch )
arch_domain_destroy(d);
if ( init_status & INIT_gnttab )
grant_table_destroy(d);
if ( init_status & INIT_evtchn )
{
evtchn_destroy(d);
evtchn_destroy_final(d);
radix_tree_destroy(&d->pirq_tree, free_pirq_struct);
}
if ( init_status & INIT_rangeset )
rangeset_domain_destroy(d);
if ( init_status & INIT_watchdog )
watchdog_domain_destroy(d);
if ( init_status & INIT_xsm )
xsm_free_security_domain(d);
free_cpumask_var(d->domain_dirty_cpumask);
free_domain_struct(d);
return ERR_PTR(err);
}
static inline void
radix_tree_free(radix_tree_t *tree)
{
radix_tree_destroy(tree);
}