PPP_UI
control = PPP_UI;
control = PPP_UI;
control == PPP_UI && protocol != PPP_ALLSTATIONS &&
ht.control = PPP_UI;
if (ht.control != PPP_UI)
if (cp[0] == PPP_ALLSTATIONS && cp[1] == PPP_UI)
PUTCHAR(PPP_UI, cp);
*sc->sc_pktp++ = PPP_UI;
if (sc->sc_ilen == 1 && c != PPP_UI) {
} else if (inp[0] == PPP_ALLSTATIONS && inp[1] == PPP_UI) {
PUTCHAR(PPP_UI, outp);
PUTCHAR(PPP_UI, p); \
if (len >= PPP_HDRLEN && p[0] == PPP_ALLSTATIONS && p[1] == PPP_UI) {
PUTCHAR(PPP_UI, p); \