Ejemplos de nhrp_cache_get en C++ (Cpp)

Ejemplo n.º 1

Archivo: nhrp_route.c Proyecto: ton31337/frr

enum nhrp_route_type nhrp_route_address(struct interface *in_ifp,
					union sockunion *addr, struct prefix *p,
					struct nhrp_peer **peer)
{
	struct interface *ifp = in_ifp;
	struct nhrp_interface *nifp;
	struct nhrp_cache *c;
	union sockunion via[4];
	uint32_t network_id = 0;
	afi_t afi = family2afi(sockunion_family(addr));
	int i;

	if (ifp) {
		nifp = ifp->info;
		network_id = nifp->afi[afi].network_id;

		c = nhrp_cache_get(ifp, addr, 0);
		if (c && c->cur.type == NHRP_CACHE_LOCAL) {
			if (p)
				memset(p, 0, sizeof(*p));
			return NHRP_ROUTE_LOCAL;
		}
	}

	for (i = 0; i < 4; i++) {
		if (!nhrp_route_get_nexthop(addr, p, &via[i], &ifp))
			return NHRP_ROUTE_BLACKHOLE;
		if (ifp) {
			/* Departing from nbma network? */
			nifp = ifp->info;
			if (network_id
			    && network_id != nifp->afi[afi].network_id)
				return NHRP_ROUTE_OFF_NBMA;
		}
		if (sockunion_family(&via[i]) == AF_UNSPEC)
			break;
		/* Resolve via node, but return the prefix of first match */
		addr = &via[i];
		p = NULL;
	}

	if (ifp) {
		c = nhrp_cache_get(ifp, addr, 0);
		if (c && c->cur.type >= NHRP_CACHE_DYNAMIC) {
			if (p)
				memset(p, 0, sizeof(*p));
			if (c->cur.type == NHRP_CACHE_LOCAL)
				return NHRP_ROUTE_LOCAL;
			if (peer)
				*peer = nhrp_peer_ref(c->cur.peer);
			return NHRP_ROUTE_NBMA_NEXTHOP;
		}
	}

	return NHRP_ROUTE_BLACKHOLE;
}

Ejemplo n.º 2

Archivo: nhrp_interface.c Proyecto: KaloNK/quagga

static void nhrp_interface_update_address(struct interface *ifp, afi_t afi, int force)
{
	const int family = afi2family(afi);
	struct nhrp_interface *nifp = ifp->info;
	struct nhrp_afi_data *if_ad = &nifp->afi[afi];
	struct nhrp_cache *nc;
	struct connected *c, *best;
	struct listnode *cnode;
	union sockunion addr;
	char buf[PREFIX_STRLEN];

	/* Select new best match preferring primary address */
	best = NULL;
	for (ALL_LIST_ELEMENTS_RO(ifp->connected, cnode, c)) {
		if (PREFIX_FAMILY(c->address) != family)
			continue;
		if (best == NULL) {
			best = c;
			continue;
		}
		if ((best->flags & ZEBRA_IFA_SECONDARY) && !(c->flags & ZEBRA_IFA_SECONDARY)) {
			best = c;
			continue;
		}
		if (!(best->flags & ZEBRA_IFA_SECONDARY) && (c->flags & ZEBRA_IFA_SECONDARY))
			continue;
		if (best->address->prefixlen > c->address->prefixlen) {
			best = c;
			continue;
		}
		if (best->address->prefixlen < c->address->prefixlen)
			continue;
	}

	/* On NHRP interfaces a host prefix is required */
	if (best && if_ad->configured && best->address->prefixlen != 8 * prefix_blen(best->address)) {
		zlog_notice("%s: %s is not a host prefix", ifp->name,
			prefix2str(best->address, buf, sizeof buf));
		best = NULL;
	}

	/* Update address if it changed */
	if (best)
		prefix2sockunion(best->address, &addr);
	else
		memset(&addr, 0, sizeof(addr));

	if (!force && sockunion_same(&if_ad->addr, &addr))
		return;

	if (sockunion_family(&if_ad->addr) != AF_UNSPEC) {
		nc = nhrp_cache_get(ifp, &if_ad->addr, 0);
		if (nc) nhrp_cache_update_binding(nc, NHRP_CACHE_LOCAL, -1, NULL, 0, NULL);
	}

	debugf(NHRP_DEBUG_KERNEL, "%s: IPv%d address changed to %s",
		ifp->name, afi == AFI_IP ? 4 : 6,
		best ? prefix2str(best->address, buf, sizeof buf) : "(none)");
	if_ad->addr = addr;

	if (if_ad->configured && sockunion_family(&if_ad->addr) != AF_UNSPEC) {
		nc = nhrp_cache_get(ifp, &addr, 1);
		if (nc) nhrp_cache_update_binding(nc, NHRP_CACHE_LOCAL, 0, NULL, 0, NULL);
	}

	notifier_call(&nifp->notifier_list, NOTIFY_INTERFACE_ADDRESS_CHANGED);
}