pim
boolean_t pim;
e = nvlist_lookup_boolean_value(props[pn], INV_IMMUTE, &pim);
flag = (pim == B_TRUE) ?
pim_validate_cksum(mblk_t *mp, ipha_t *ip, struct pim *pimp)
struct pim *pimp; /* pointer to a pim struct */
pimp = (struct pim *)((caddr_t)ip + iphlen);