X-Git-Url: http://git.ozlabs.org/?p=ppp.git;a=blobdiff_plain;f=freebsd-2.0%2Fif_ppp.c;h=702bcca74c538133e584c5558f40fd41059ad28e;hp=e75691f3fcbeca89d19c4a34d5f954eebcbaf000;hb=f496bf27c6f959825eb6b6d60e31801ff6137462;hpb=614af03b75ed9bdca2b5fcc4761842ba345cd260 diff --git a/freebsd-2.0/if_ppp.c b/freebsd-2.0/if_ppp.c index e75691f..702bcca 100644 --- a/freebsd-2.0/if_ppp.c +++ b/freebsd-2.0/if_ppp.c @@ -69,7 +69,7 @@ * Paul Mackerras (paulus@cs.anu.edu.au). */ -/* $Id: if_ppp.c,v 1.3 1995/05/01 01:39:33 paulus Exp $ */ +/* $Id: if_ppp.c,v 1.6 1995/10/27 03:34:42 paulus Exp $ */ /* from if_sl.c,v 1.11 84/10/04 12:54:47 rick Exp */ #include "ppp.h" @@ -124,11 +124,11 @@ #endif void pppattach __P((void)); -int pppioctl __P((struct ppp_softc *sc, int cmd, caddr_t data, int flag, +int pppioctl __P((struct ppp_softc *sc, u_long cmd, caddr_t data, int flag, struct proc *)); int pppoutput __P((struct ifnet *ifp, struct mbuf *m0, struct sockaddr *dst, struct rtentry *rtp)); -int pppsioctl __P((struct ifnet *ifp, int cmd, caddr_t data)); +int pppsioctl __P((struct ifnet *ifp, u_long cmd, caddr_t data)); void pppintr __P((void)); static void ppp_requeue __P((struct ppp_softc *)); @@ -191,7 +191,7 @@ pppattach() sc->sc_if.if_name = "ppp"; sc->sc_if.if_unit = i++; sc->sc_if.if_mtu = PPP_MTU; - sc->sc_if.if_flags = IFF_POINTOPOINT; + sc->sc_if.if_flags = IFF_POINTOPOINT | IFF_MULTICAST; sc->sc_if.if_type = IFT_PPP; sc->sc_if.if_hdrlen = PPP_HDRLEN; sc->sc_if.if_ioctl = pppsioctl; @@ -205,7 +205,7 @@ pppattach() bpfattach(&sc->sc_bpf, &sc->sc_if, DLT_PPP, PPP_HDRLEN); #endif } - netisrs[NETISR_PPP] = ppp_intr; + netisrs[NETISR_PPP] = pppintr; } /* @@ -300,8 +300,9 @@ pppdealloc(sc) int pppioctl(sc, cmd, data, flag, p) struct ppp_softc *sc; + u_long cmd; caddr_t data; - int cmd, flag; + int flag; struct proc *p; { int s, error, flags, mru, nb, npx; @@ -387,8 +388,8 @@ pppioctl(sc, cmd, data, flag, p) * a compressor or decompressor. */ error = 0; - s = splnet(); if (odp->transmit) { + s = splnet(); if (sc->sc_xc_state != NULL) (*sc->sc_xcomp->comp_free)(sc->sc_xc_state); sc->sc_xcomp = *cp; @@ -401,7 +402,9 @@ pppioctl(sc, cmd, data, flag, p) } splimp(); sc->sc_flags &= ~SC_COMP_RUN; + splx(s); } else { + s = splnet(); if (sc->sc_rc_state != NULL) (*sc->sc_rcomp->decomp_free)(sc->sc_rc_state); sc->sc_rcomp = *cp; @@ -414,8 +417,8 @@ pppioctl(sc, cmd, data, flag, p) } splimp(); sc->sc_flags &= ~SC_DECOMP_RUN; + splx(s); } - splx(s); return (error); } if (sc->sc_flags & SC_DEBUG) @@ -441,7 +444,7 @@ pppioctl(sc, cmd, data, flag, p) if (error = suser(p->p_ucred, &p->p_acflag)) return (error); if (npi->mode != sc->sc_npmode[npx]) { - s = splimp(); + s = splnet(); sc->sc_npmode[npx] = npi->mode; if (npi->mode != NPMODE_QUEUE) { ppp_requeue(sc); @@ -453,7 +456,7 @@ pppioctl(sc, cmd, data, flag, p) break; case PPPIOCGIDLE: - s = splimp(); + s = splnet(); t = time.tv_sec; ((struct ppp_idle *)data)->xmit_idle = t - sc->sc_last_sent; ((struct ppp_idle *)data)->recv_idle = t - sc->sc_last_recv; @@ -472,7 +475,7 @@ pppioctl(sc, cmd, data, flag, p) int pppsioctl(ifp, cmd, data) register struct ifnet *ifp; - int cmd; + u_long cmd; caddr_t data; { struct proc *p = curproc; /* XXX */ @@ -511,6 +514,19 @@ pppsioctl(ifp, cmd, data) ifr->ifr_mtu = sc->sc_if.if_mtu; break; + case SIOCADDMULTI: + case SIOCDELMULTI: + switch(ifr->ifr_addr.sa_family) { +#ifdef INET + case AF_INET: + break; +#endif + default: + error = EAFNOSUPPORT; + break; + } + break; + case SIOCGPPPSTATS: psp = &((struct ifpppstatsreq *) data)->stats; bzero(psp, sizeof(*psp)); @@ -658,7 +674,7 @@ pppoutput(ifp, m0, dst, rtp) /* * Put the packet on the appropriate queue. */ - s = splimp(); /* splnet should be OK now */ + s = splnet(); if (mode == NPMODE_QUEUE) { /* XXX we should limit the number of packets on this queue */ *sc->sc_npqtail = m0; @@ -666,7 +682,7 @@ pppoutput(ifp, m0, dst, rtp) sc->sc_npqtail = &m0->m_nextpkt; } else { ifq = (m0->m_flags & M_HIGHPRI)? &sc->sc_fastq: &ifp->if_snd; - if (IF_QFULL(ifq)) { + if (IF_QFULL(ifq) && dst->sa_family != AF_UNSPEC) { IF_DROP(ifq); splx(s); sc->sc_if.if_oerrors++; @@ -688,7 +704,7 @@ bad: /* * After a change in the NPmode for some NP, move packets from the * npqueue to the send queue or the fast queue as appropriate. - * Should be called at splimp (actually splnet would probably suffice). + * Should be called at splnet. */ static void ppp_requeue(sc) @@ -737,11 +753,11 @@ ppp_requeue(sc) } /* - * Get a packet to send. This procedure is intended to be called - * at spltty()/splimp(), so it takes little time. If there isn't - * a packet waiting to go out, it schedules a software interrupt - * to prepare a new packet; the device start routine gets called - * again when a packet is ready. + * Get a packet to send. This procedure is intended to be called at + * spltty or splimp, so it takes little time. If there isn't a packet + * waiting to go out, it schedules a software interrupt to prepare a + * new packet; the device start routine gets called again when a + * packet is ready. */ struct mbuf * ppp_dequeue(sc) @@ -786,7 +802,9 @@ pppintr() && (sc->sc_if.if_snd.ifq_head || sc->sc_fastq.ifq_head)) ppp_outpkt(sc); for (;;) { + s = splimp(); IF_DEQUEUE(&sc->sc_rawq, m); + splx(s); if (m == NULL) break; ppp_inproc(sc, m); @@ -884,7 +902,7 @@ ppp_outpkt(sc) #ifdef PPP_COMPRESS if (protocol != PPP_LCP && protocol != PPP_CCP && sc->sc_xc_state && (sc->sc_flags & SC_COMP_RUN)) { - struct mbuf *mcomp; + struct mbuf *mcomp = NULL; int slen, clen; slen = 0; @@ -922,10 +940,8 @@ ppp_outpkt(sc) --m->m_len; } - s = splimp(); sc->sc_togo = m; (*sc->sc_start)(sc); - splx(s); } #ifdef PPP_COMPRESS @@ -1068,6 +1084,7 @@ ppppktin(sc, m, lost) /* * Process a received PPP packet, doing decompression as necessary. + * Should be called at splnet. */ #define COMPTYPE(proto) ((proto) == PPP_VJC_COMP? TYPE_COMPRESSED_TCP: \ TYPE_UNCOMPRESSED_TCP) @@ -1080,13 +1097,16 @@ ppp_inproc(sc, m) struct ifqueue *inq; int s, ilen, xlen, proto, rv; u_char *cp, adrs, ctrl; - struct mbuf *mp, *dmp; + struct mbuf *mp, *dmp = NULL; u_char *iphdr; u_int hlen; sc->sc_if.if_ipackets++; if (sc->sc_flags & SC_LOG_INPKT) { + ilen = 0; + for (mp = m; mp != NULL; mp = mp->m_next) + ilen += mp->m_len; printf("ppp%d: got %d bytes\n", sc->sc_if.if_unit, ilen); pppdumpm(m); } @@ -1112,32 +1132,30 @@ ppp_inproc(sc, m) && !(sc->sc_flags & SC_DC_ERROR) && !(sc->sc_flags & SC_DC_FERROR)) { /* decompress this packet */ rv = (*sc->sc_rcomp->decompress)(sc->sc_rc_state, m, &dmp); - if (dmp != NULL) { + if (rv == DECOMP_OK) { m_freem(m); + if (dmp == NULL) { + /* no error, but no decompressed packet produced */ + return; + } m = dmp; cp = mtod(m, u_char *); proto = PPP_PROTOCOL(cp); } else { - /* pass the compressed packet up to pppd, which may take - CCP down or issue a Reset-Req. */ + /* + * An error has occurred in decompression. + * Pass the compressed packet up to pppd, which may take + * CCP down or issue a Reset-Req. + */ if (sc->sc_flags & SC_DEBUG) printf("ppp%d: decompress failed %d\n", sc->sc_if.if_unit, rv); s = splimp(); sc->sc_flags |= SC_VJ_RESET; - switch (rv) { - case DECOMP_OK: - /* no error, but no decompressed packet produced */ - splx(s); - m_freem(m); - return; - case DECOMP_ERROR: + if (rv == DECOMP_ERROR) sc->sc_flags |= SC_DC_ERROR; - break; - case DECOMP_FATALERROR: + else sc->sc_flags |= SC_DC_FERROR; - break; - } splx(s); }