> > The very same code exists in current iproute2 git tree.
> > Is it also buggy in the same way?
>
> Hi Denys
>
> I checked before and iproute2 works just fine. The code is a bit different:
Friendly ping.
Regards,
yousong
>
> >
> > iproute.c
> > static int filter_nlmsg(struct nlmsghdr *n, struct rtattr **tb, int
> > host_len)
> > {
> > struct rtmsg *r = NLMSG_DATA(n);
> > inet_prefix dst = { .family = r->rtm_family };
> > inet_prefix src = { .family = r->rtm_family };
> > inet_prefix via = { .family = r->rtm_family };
> > inet_prefix prefsrc = { .family = r->rtm_family };
> > __u32 table;
> > static int ip6_multiple_tables;
> >
> > table = rtm_get_table(r, tb);
> >
> > if (preferred_family != AF_UNSPEC && r->rtm_family !=
> > preferred_family)
> > return 0;
> >
> > if (r->rtm_family == AF_INET6 && table != RT_TABLE_MAIN)
> > ip6_multiple_tables = 1;
>
> It sets ip6_multiple_tables here.
>
> >
> > if (filter.cloned == !(r->rtm_flags & RTM_F_CLONED))
> > return 0;
> >
> > if (r->rtm_family == AF_INET6 && !ip6_multiple_tables) {
>
> So it won't go into this branch
>
> > if (filter.tb) {
> > if (filter.tb == RT_TABLE_LOCAL) {
> > if (r->rtm_type != RTN_LOCAL)
> > return 0;
> > } else if (filter.tb == RT_TABLE_MAIN) {
> > if (r->rtm_type == RTN_LOCAL)
> > return 0;
> > } else {
> > return 0;
> > }
> > }
> > } else {
> > if (filter.tb > 0 && filter.tb != table)
> > return 0;
>
> The check happens here.
>
> Regards,
> yousong
>
> > }
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