static struct net_route*
get_route_internal(struct net_domain_private* domain,
const struct sockaddr* address)
{
ASSERT_LOCKED_RECURSIVE(&domain->lock);
net_route_private* route = NULL;
if (address->sa_family == AF_LINK) {
// special address to find an interface directly
RouteList::Iterator iterator = domain->routes.GetIterator();
const sockaddr_dl* link = (const sockaddr_dl*)address;
while (iterator.HasNext()) {
route = iterator.Next();
net_device* device = route->interface_address->interface->device;
if ((link->sdl_nlen > 0
&& !strncmp(device->name, (const char*)link->sdl_data,
IF_NAMESIZE))
|| (link->sdl_nlen == 0 && link->sdl_alen > 0
&& !memcmp(LLADDR(link), device->address.data,
device->address.length)))
break;
}
} else
route = find_route(domain, address);
if (route != NULL && atomic_add(&route->ref_count, 1) == 0) {
// route has been deleted already
route = NULL;
}
return route;
}
/*! You need to hold the domain lock when calling this function. */
void
domain_interface_went_down(net_interface* interface)
{
ASSERT_LOCKED_RECURSIVE(&((net_domain_private*)interface->domain)->lock);
TRACE(("domain_interface_went_down(%i, %s)\n",
interface->domain->family, interface->name));
invalidate_routes(interface->domain, interface);
}
/*! Searches for a specific interface by name.
You need to have the interface list's lock hold when calling this function.
*/
static struct Interface*
find_interface(const char* name)
{
ASSERT_LOCKED_RECURSIVE(&sLock);
InterfaceList::Iterator iterator = sInterfaces.GetIterator();
while (Interface* interface = iterator.Next()) {
if (!strcmp(interface->name, name))
return interface;
}
return NULL;
}
InterfaceAddress*
Interface::_FirstForFamily(int family)
{
ASSERT_LOCKED_RECURSIVE(&fLock);
AddressList::Iterator iterator = fAddresses.GetIterator();
while (InterfaceAddress* address = iterator.Next()) {
if (address->domain != NULL && address->domain->family == family)
return address;
}
return NULL;
}
static void
update_route_infos(struct net_domain_private* domain)
{
ASSERT_LOCKED_RECURSIVE(&domain->lock);
RouteInfoList::Iterator iterator = domain->route_infos.GetIterator();
while (iterator.HasNext()) {
net_route_info* info = iterator.Next();
put_route_internal(domain, info->route);
info->route = get_route_internal(domain, &info->address);
}
}
static void
put_route_internal(struct net_domain_private* domain, net_route* _route)
{
ASSERT_LOCKED_RECURSIVE(&domain->lock);
net_route_private* route = (net_route_private*)_route;
if (route == NULL || atomic_add(&route->ref_count, -1) != 1)
return;
// delete route - it must already have been removed at this point
if (route->interface_address != NULL)
((InterfaceAddress*)route->interface_address)->ReleaseReference();
delete route;
}