ipv6.c

snmp的源代码,已经在我的ubuntu下编译通过

            if (if_getifnet(interface, &ifnet) < 0)
                break;
#if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || defined(darwin)
            ifa = (caddr_t) TAILQ_FIRST(&ifnet.if_addrhead);
#else
# if defined(__NetBSD__) || defined(__OpenBSD__)
            ifa = (caddr_t) TAILQ_FIRST(&ifnet.if_addrlist);
# else
            ifa = (caddr_t) ifnet.if_addrlist;
# endif
#endif
            while (ifa) {
                klookup((u_long) ifa, (char *) &ifaddr, sizeof(ifaddr));
                klookup((u_long) ifaddr.ifa_addr, (char *) &sdl,
                        sizeof(sdl));
                if (sdl.sdl_family == AF_LINK) {
                    if (sizeof(sdl.sdl_data) < sdl.sdl_nlen + sdl.sdl_alen) {
                        ERROR_MSG("sdl_alen too long for interface\n");
                        break;
                    }
                    *var_len = sdl.sdl_alen;
                    return (u_char *) (sdl.sdl_data + sdl.sdl_nlen);
                }
#if (defined(__FreeBSD__) && __FreeBSD__ >= 3) || defined(darwin)
                ifa = (caddr_t) TAILQ_NEXT(&ifaddr, ifa_link);
#else
# if defined(__NetBSD__) || defined(__OpenBSD__)
                ifa = (caddr_t) TAILQ_NEXT(&ifaddr, ifa_list);
# else
                ifa = (caddr_t) ifaddr.ifa_next;
# endif
#endif
            }

            /*
             * no physical address found 
             */
            *var_len = 0;
            return NULL;
        }
    case IPV6IFADMSTATUS:
        {
            struct ifnet    ifnet;

            if (if_getifnet(interface, &ifnet) < 0)
                break;
            long_return = (ifnet.if_flags & IFF_RUNNING) ? 1 : 2;
            return (u_char *) & long_return;
        }
    case IPV6IFOPERSTATUS:
        {
            struct ifnet    ifnet;

            if (if_getifnet(interface, &ifnet) < 0)
                break;
            long_return = (ifnet.if_flags & IFF_UP) ? 1 : 2;
            return (u_char *) & long_return;
        }
#if TRUST_IFLASTCHANGE         /*untrustable value returned... */
    case IPV6IFLASTCHANGE:
        {
            struct timeval  lastchange;
            struct timeval  now;
            int             gotanswer;

            gotanswer = 0;
            lastchange.tv_sec = lastchange.tv_usec = 0;
#ifdef HAVE_NET_IF_MIB_H
            if (!gotanswer) {
                struct ifmibdata ifmd;

                if (if_getifmibdata(interface, &ifmd) < 0);
                else {
                    lastchange = ifmd.ifmd_data.ifi_lastchange;
                    gotanswer++;
                }
            }
#endif
#ifdef STRUCT_IFNET_HAS_IF_LASTCHANGE_TV_SEC
            if (!gotanswer) {
                struct ifnet    ifnet;

                if (if_getifnet(interface, &ifnet) < 0);
                else {
                    lastchange = ifnet.if_lastchange;
                    gotanswer++;
                }
            }
#endif
            DEBUGMSGTL(("mibII/ipv6", "lastchange = { %d.%06d }\n",
                        lastchange.tv_sec, lastchange.tv_usec));
            if (lastchange.tv_sec == 0 && lastchange.tv_usec == 0)
                long_return = 0;
            else {
                gettimeofday(&now, (struct timezone *) NULL);
                long_return =
                    (u_long) ((now.tv_sec - lastchange.tv_sec) * 100);
                long_return +=
                    (u_long) ((now.tv_usec - lastchange.tv_usec) / 10000);
            }
            return (u_char *) & long_return;
        }
#endif  /* TRUST_IFLASTCHANGE */

#ifdef SIOCGIFSTAT_IN6
    case IPV6IFSTATSINRCVS:
    case IPV6IFSTATSINHDRERRS:
    case IPV6IFSTATSTOOBIGERRS:
    case IPV6IFSTATSINNOROUTES:
    case IPV6IFSTATSINADDRERRS:
    case IPV6IFSTATSINUNKNOWPROTS:
    case IPV6IFSTATSINTRUNCATPKTS:
    case IPV6IFSTATSINDISCARDS:
    case IPV6IFSTATSINDELIVERS:
    case IPV6IFSTATSOUTFORWDATAS:
    case IPV6IFSTATSOUTREQS:
    case IPV6IFSTATSOUTDISCARDS:
    case IPV6IFSTATSOUTFRAGOKS:
    case IPV6IFSTATSOUTFRAGFAILS:
    case IPV6IFSTATSOUTFRAGCREATS:
    case IPV6IFSTATSOUTREASMREQS:
    case IPV6IFSTATSOUTREASMOKS:
    case IPV6IFSTATSOUTREASMFAILS:
    case IPV6IFSTATSINMCASTPKTS:
    case IPV6IFSTATSOUTMCASTPKTS:
        {
            struct in6_ifstat *ifs6;
            struct in6_ifreq ifr;
            int             s;

            memset(&ifr, 0, sizeof(ifr));
            strncpy(ifr.ifr_name, if_getname(interface),
                    sizeof(ifr.ifr_name));
            if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
                break;
            if (ioctl(s, SIOCGIFSTAT_IN6, (caddr_t) & ifr) < 0) {
                close(s);
                break;
            }
            close(s);
            ifs6 = &ifr.ifr_ifru.ifru_stat;
            switch (vp->magic) {
            case IPV6IFSTATSINRCVS:
                long_return = ifs6->ifs6_in_receive;
                break;
            case IPV6IFSTATSINHDRERRS:
                long_return = ifs6->ifs6_in_hdrerr;
                break;
            case IPV6IFSTATSTOOBIGERRS:
                long_return = ifs6->ifs6_in_toobig;
                break;
            case IPV6IFSTATSINNOROUTES:
                long_return = ifs6->ifs6_in_noroute;
                break;
            case IPV6IFSTATSINADDRERRS:
                long_return = ifs6->ifs6_in_addrerr;
                break;
            case IPV6IFSTATSINUNKNOWPROTS:
                long_return = ifs6->ifs6_in_protounknown;
                break;
            case IPV6IFSTATSINTRUNCATPKTS:
                long_return = ifs6->ifs6_in_truncated;
                break;
            case IPV6IFSTATSINDISCARDS:
                long_return = ifs6->ifs6_in_discard;
                break;
            case IPV6IFSTATSINDELIVERS:
                long_return = ifs6->ifs6_in_deliver;
                break;
            case IPV6IFSTATSOUTFORWDATAS:
                long_return = ifs6->ifs6_out_forward;
                break;
            case IPV6IFSTATSOUTREQS:
                long_return = ifs6->ifs6_out_request;
                break;
            case IPV6IFSTATSOUTDISCARDS:
                long_return = ifs6->ifs6_out_discard;
                break;
            case IPV6IFSTATSOUTFRAGOKS:
                long_return = ifs6->ifs6_out_fragok;
                break;
            case IPV6IFSTATSOUTFRAGFAILS:
                long_return = ifs6->ifs6_out_fragfail;
                break;
            case IPV6IFSTATSOUTFRAGCREATS:
                long_return = ifs6->ifs6_out_fragcreat;
                break;
            case IPV6IFSTATSOUTREASMREQS:
                long_return = ifs6->ifs6_reass_reqd;
                break;
            case IPV6IFSTATSOUTREASMOKS:
                long_return = ifs6->ifs6_reass_ok;
                break;
            case IPV6IFSTATSOUTREASMFAILS:
                long_return = ifs6->ifs6_reass_fail;
                break;
            case IPV6IFSTATSINMCASTPKTS:
                long_return = ifs6->ifs6_in_mcast;
                break;
            case IPV6IFSTATSOUTMCASTPKTS:
                long_return = ifs6->ifs6_out_mcast;
                break;
            default:
                return NULL;
            }
            return (u_char *) & long_return;
        }
#endif
    default:
        break;
    }
    return NULL;
#endif
}

u_char         *
var_icmpv6Entry(register struct variable * vp,
                oid * name,
                size_t * length,
                int exact, size_t * var_len, WriteMethod ** write_method)
{
#ifndef HAVE_IF_NAMEINDEX
    return NULL;
#else
    int             interface;
    int             max;

    max = if_maxifindex();
    if (max < 0)
        return NULL;

    if (header_ipv6_scan
        (vp, name, length, exact, var_len, write_method, 1, max)
        == MATCH_FAILED) {
        return NULL;
    }
    interface = name[*length - 1];
    DEBUGMSGTL(("mibII/ipv6", "interface: %d(%s)\n",
                interface, if_getname(interface)));
    if (interface >= max)
        return NULL;

    switch (vp->magic) {
#ifdef SIOCGIFSTAT_ICMP6
    case IPV6IFICMPINMSG:
    case IPV6IFICMPINERRORS:
    case IPV6IFICMPINDSTUNRCHS:
    case IPV6IFICMPINADMPROHS:
    case IPV6IFICMPINTIMEXCDS:
    case IPV6IFICMPINPARMPROBS:
    case IPV6IFICMPINPKTTOOBIGS:
    case IPV6IFICMPINECHOS:
    case IPV6IFICMPINECHOREPS:
    case IPV6IFICMPINRTRSLICITS:
    case IPV6IFICMPINRTRADVS:
    case IPV6IFICMPINNBRSLICITS:
    case IPV6IFICMPINNBRADVS:
    case IPV6IFICMPINREDIRECTS:
    case IPV6IFICMPINGRPMEQERYS:
    case IPV6IFICMPINGRPMERSPS:
    case IPV6IFICMPINGRPMEREDCS:
    case IPV6IFICMPOUTMSG:
    case IPV6IFICMPOUTERRORS:
    case IPV6IFICMPOUTDSTUNRCHS:
    case IPV6IFICMPOUTADMPROHS:
    case IPV6IFICMPOUTTIMEXCDS:
    case IPV6IFICMPOUTPARMPROBS:
    case IPV6IFICMPOUTPKTTOOBIGS:
    case IPV6IFICMPOUTECHOS:
    case IPV6IFICMPOUTECHOREPS:
    case IPV6IFICMPOUTRTRSLICITS:
    case IPV6IFICMPOUTRTRADVS:
    case IPV6IFICMPOUTNBRSLICITS:
    case IPV6IFICMPOUTNBRADVS:
    case IPV6IFICMPOUTREDIRECTS:
    case IPV6IFICMPOUTGRPMEQERYS:
    case IPV6IFICMPOUTGRPMERSPS:
    case IPV6IFICMPOUTGRPMEREDCS:
        {
            struct icmp6_ifstat *ifs6;
            struct in6_ifreq ifr;
            int             s;

            memset(&ifr, 0, sizeof(ifr));
            strncpy(ifr.ifr_name, if_getname(interface),
                    sizeof(ifr.ifr_name));
            if ((s = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
                break;
            if (ioctl(s, SIOCGIFSTAT_ICMP6, (caddr_t) & ifr) < 0) {
                close(s);
                break;
            }
            close(s);
            ifs6 = &ifr.ifr_ifru.ifru_icmp6stat;
            switch (vp->magic) {
            case IPV6IFICMPINMSG:
                long_return = ifs6->ifs6_in_msg;
                break;
            case IPV6IFICMPINERRORS:
                long_return = ifs6->ifs6_in_error;
                break;
            case IPV6IFICMPINDSTUNRCHS:
                long_return = ifs6->ifs6_in_dstunreach;
                break;
            case IPV6IFICMPINADMPROHS:
                long_return = ifs6->ifs6_in_adminprohib;
                break;
            case IPV6IFICMPINTIMEXCDS:
                long_return = ifs6->ifs6_in_timeexceed;
                break;
            case IPV6IFICMPINPARMPROBS:
                long_return = ifs6->ifs6_in_paramprob;
                break;
            case IPV6IFICMPINPKTTOOBIGS:
                long_return = ifs6->ifs6_in_pkttoobig;
                break;
            case IPV6IFICMPINECHOS:
                long_return = ifs6->ifs6_in_echo;
                break;
            case IPV6IFICMPINECHOREPS:
                long_return = ifs6->ifs6_in_echoreply;
                break;
            case IPV6IFICMPINRTRSLICITS:
                long_return = ifs6->ifs6_in_routersolicit;
                break;
            case IPV6IFICMPINRTRADVS:
                long_return = ifs6->ifs6_in_routeradvert;
                break;
            case IPV6IFICMPINNBRSLICITS:
                long_return = ifs6->ifs6_in_neighborsolicit;
                break;
            case IPV6IFICMPINNBRADVS:
                long_return = ifs6->ifs6_in_neighboradvert;
                break;
            case IPV6IFICMPINREDIRECTS:
                long_return = ifs6->ifs6_in_redirect;
                break;
            case IPV6IFICMPINGRPMEQERYS:
                long_return = ifs6->ifs6_in_mldquery;
                break;
            case IPV6IFICMPINGRPMERSPS:
                long_return = ifs6->ifs6_in_mldreport;
                break;
            case IPV6IFICMPINGRPMEREDCS:
                long_return = ifs6->ifs6_in_mlddone;
                break;
            case IPV6IFICMPOUTMSG:
                long_return = ifs6->ifs6_out_msg;
                break;
            case IPV6IFICMPOUTERRORS:
                long_return = ifs6->ifs6_out_error;
                break;
            case IPV6IFICMPOUTDSTUNRCHS:
                long_return = ifs6->ifs6_out_dstunreach;
                break;
            case IPV6IFICMPOUTADMPROHS:
                long_return = ifs6->ifs6_out_adminprohib;
                break;
            case IPV6IFICMPOUTTIMEXCDS:
                long_return = ifs6->ifs6_out_timeexceed;
                break;
            case IPV6IFICMPOUTPARMPROBS:
                long_return = ifs6->ifs6_out_paramprob;
                break;
            case IPV6IFICMPOUTPKTTOOBIGS:
                long_return = ifs6->ifs6_out_pkttoobig;
                break;
            case IPV6IFICMPOUTECHOS:
                long_return = ifs6->ifs6_out_echo;
                break;
            case IPV6IFICMPOUTECHOREPS:
                long_return = ifs6->ifs6_out_echoreply;
                break;
            case IPV6IFICMPOUTRTRSLICITS:
                long_return = ifs6->ifs6_out_routersolicit;
                break;
            case IPV6IFICMPOUTRTRADVS:
                long_return = ifs6->ifs6_out_routeradvert;
                break;
            case IPV6IFICMPOUTNBRSLICITS:
                long_return = ifs6->ifs6_out_neighborsolicit;
                break;
            case IPV6IFICMPOUTNBRADVS:
                long_return = ifs6->ifs6_out_neighboradvert;
                break;
            case IPV6IFICMPOUTREDIRECTS:
                long_return = ifs6->ifs6_out_redirect;
                break;
            case IPV6IFICMPOUTGRPMEQERYS:
                long_return = ifs6->ifs6_out_mldquery;
                break;
            case IPV6IFICMPOUTGRPMERSPS:
                long_return = ifs6->ifs6_out_mldreport;
                break;
            case IPV6IFICMPOUTGRPMEREDCS:
                long_return = ifs6->ifs6_out_mlddone;
                break;
            default:
                return NULL;
            }
            return (u_char *) & long_return;
        }
#endif