Function cleanup_xaddrs_inet6

lib/ff_route.c:281–314

#ifdef INET6
static int
cleanup_xaddrs_inet6(struct rt_addrinfo *info)
{
    struct sockaddr_in6 *dst_sa, *mask_sa;
    struct in6_addr mask;

    /* Check & fixup dst/netmask combination first */
    dst_sa = (struct sockaddr_in6 *)info->rti_info[RTAX_DST];
    mask_sa = (struct sockaddr_in6 *)info->rti_info[RTAX_NETMASK];

    mask = mask_sa ? mask_sa->sin6_addr : in6mask128;
    IN6_MASK_ADDR(&dst_sa->sin6_addr, &mask);

    if (dst_sa->sin6_len < sizeof(struct sockaddr_in6)) {
        printf("dst sin6_len too small\n");
        return (EINVAL);
    }
    if (mask_sa && mask_sa->sin6_len < sizeof(struct sockaddr_in6)) {
        printf("mask sin6_len too small\n");
        return (EINVAL);
    }
    fill_sockaddr_inet6(dst_sa, &dst_sa->sin6_addr, 0);

    if (!IN6_ARE_ADDR_EQUAL(&mask, &in6mask128))
        fill_sockaddr_inet6(mask_sa, &mask, 0);
    else
        remove_netmask(info);

    /* Check gateway */
    if (info->rti_info[RTAX_GATEWAY] != NULL)
        return (cleanup_xaddrs_gateway(info));

    return (0);
}
#endif

static int