Function ff_rtioctl_old

lib/ff_route.c:1236–1595

#if 0
int
ff_rtioctl_old(int fibnum, void *data, unsigned *plen, unsigned maxlen)
{
    struct rt_msghdr *rtm = NULL;
    struct rtentry *rt = NULL;
    struct rib_head *rnh;
    struct rt_addrinfo info;
    union sockaddr_union saun;
    sa_family_t saf = AF_UNSPEC;
    struct sockaddr_storage ss;
    struct walkarg w;
    int error = 0, alloc_len = 0, len;
    struct ifnet *ifp = NULL;

#ifdef INET6
    struct sockaddr_in6 *sin6;
    int i, rti_need_deembed = 0;
#endif

#define senderr(e) { error = e; goto flush;}

    len = *plen;
    /*
     * Most of current messages are in range 200-240 bytes,
     * minimize possible re-allocation on reply using larger size
     * buffer aligned on 1k boundaty.
     */
    alloc_len = roundup2(len, 1024);
    if ((rtm = malloc(alloc_len, M_TEMP, M_NOWAIT)) == NULL)
        senderr(ENOBUFS);
    bcopy(data, (caddr_t)rtm, len);

    if (len < sizeof(*rtm) || len != rtm->rtm_msglen)
        senderr(EINVAL);

    bzero(&info, sizeof(info));
    bzero(&w, sizeof(w));

    if (rtm->rtm_version != RTM_VERSION)
        senderr(EPROTONOSUPPORT);

    /*
     * Starting from here, it is possible
     * to alter original message and insert
     * caller PID and error value.
     */

    rtm->rtm_pid = curproc->p_pid;
    info.rti_addrs = rtm->rtm_addrs;

    info.rti_mflags = rtm->rtm_inits;
    info.rti_rmx = &rtm->rtm_rmx;

    /*
     * rt_xaddrs() performs s6_addr[2] := sin6_scope_id for AF_INET6
     * link-local address because rtrequest requires addresses with
     * embedded scope id.
     */