head = PATH_HASH(asp->flags.aspath);
head = PATH_HASH(asp->aspath);
path_link(struct rde_aspath *asp, struct rde_peer *peer){	struct aspath_head	*head;	head = PATH_HASH(asp->flags.aspath);	LIST_INSERT_HEAD(head, asp, path_l);	LIST_INSERT_HEAD(&peer->path_h, asp, peer_l);	asp->peer = peer;	nexthop_add(asp);}