netem "Invalid input data or parameter" error

[Marek Waszkiewicz]

Anyone ? This quiestion was asked back in 2009 with no response, does
it mean netem in libnl is broken ?

2017-12-11 14:49 GMT+01:00 Marek Waszkiewicz <marek.waszkiewicz77 at gmail.com>:
> Hi,
> I was trying simple app with netem qdisc:
>
> struct nl_sock *sock;
>   struct rtnl_qdisc *q;
>   struct nl_cache *cache;
>   struct rtnl_link *link;
>   int if_index;
>
>
>   sock = nl_socket_alloc();
>
>   nl_connect(sock, NETLINK_ROUTE);
>   rtnl_link_alloc_cache(sock, AF_UNSPEC, &cache);
>   link = rtnl_link_get_by_name(cache, "eth0");
>   if_index = rtnl_link_get_ifindex(link);
>
>   q = rtnl_qdisc_alloc();
>
>   rtnl_tc_set_ifindex(TC_CAST(q), if_index);
>   rtnl_tc_set_parent(TC_CAST(q), TC_H_ROOT);
>   rtnl_tc_set_handle(TC_CAST(q), TC_HANDLE(1, 0));
>   rtnl_tc_set_kind(TC_CAST(q), "netem");
>
>   rtnl_netem_set_delay(q, 100);
>   rtnl_netem_set_loss(q, 10);
>
>   rtnl_qdisc_add(sock, q, NLM_F_CREATE);
>
>
>
> However, adding netem qdisc  failed with:  EINVAL "Invalid input data
> or parameter" error, any clues ?
>
> Regards