rttable_walkarg
struct rttable_walkarg *w;
rttable_walkarg_create(struct rttable_walkarg *w, int op, int arg)
rttable_walkarg_destroy(struct rttable_walkarg *w)
struct rttable_walkarg *w = xw;
struct rttable_walkarg *w = nmsg->w;
struct rttable_walkarg w;