ipsec_setspidx
static int ipsec_setspidx(struct mbuf *, struct secpolicyindex *, int, int);
if (ipsec_setspidx(m, &spidx, dir, 1) != 0) {
if (ipsec_setspidx(m, &pcbsp->sp_cache[dir].cacheidx, dir, 1) != 0) {
*error = ipsec_setspidx(m, &spidx, dir, 1);
error = ipsec_setspidx(m, &inp->inp_sp->sp_in->spidx,