ipovly
struct ipovly io;
MPASS(m->m_pkthdr.len >= sizeof(struct ipovly));
m_adj(m, sizeof(struct ipovly));
struct ipovly *ipov = (struct ipovly *)ip;
struct ipovly *ipov = (struct ipovly *)ip;
struct ipovly ti_i; /* overlaid ip structure */
char b[offsetof(struct ipovly, ih_src)];
struct ipovly *ipov = (struct ipovly *)ip;
struct ipovly ui_i; /* overlaid ip structure */
struct ipovly ipov;
if (off < sizeof(struct ipovly))
static struct ipovly ipo;