-/* $Id: if_ppp.c,v 1.4 1996/07/01 05:30:45 paulus Exp $ */
+/* $Id: if_ppp.c,v 1.5 1996/09/26 06:24:14 paulus Exp $ */
/*
* if_ppp.c - Point-to-Point Protocol (PPP) Asynchronous driver.
for (mp = m; mp != NULL; mp = mp->m_next)
slen += mp->m_len;
clen = (*sc->sc_xcomp->compress)
- (sc->sc_xc_state, &mcomp, m, slen,
- (sc->sc_flags & SC_CCP_UP? sc->sc_if.if_mtu: 0));
+ (sc->sc_xc_state, &mcomp, m, slen, sc->sc_if.if_mtu + PPP_HDRLEN);
if (mcomp != NULL) {
- m_freem(m);
- m = mcomp;
- cp = mtod(m, u_char *);
- protocol = cp[3];
+ if (sc->sc_flags & SC_CCP_UP) {
+ /* Send the compressed packet instead of the original. */
+ m_freem(m);
+ m = mcomp;
+ cp = mtod(m, u_char *);
+ protocol = cp[3];
+ } else {
+ /* Can't transmit compressed packets until CCP is up. */
+ m_freem(mcomp);
+ }
}
}
#endif /* PPP_COMPRESS */