Libnl and class API

["Edouard Thuleau" <thuleau@xxxxxxxxx>]

Hi,

I try to use the qdisc and class API of libnl and I can create a qdisc
root or qdisc leaf, but can't add a class on the qdisc root, I've got
this error :

Unable to connect netlink socketbind() failed (errno = Operation not permitted)

Function for add a class :

int add_class(struct nl_handle *nlh,
                    int ifindex,
                    char *hndl,
                    char *prt,
                    uint32_t prio,
                    uint32_t rate,
                    uint32_t ceil) {

      struct rtnl_class *class;
      uint32_t handle, parent;
      int err = 0;

      class = rtnl_class_alloc();
      if (!class)
              return -1;

      rtnl_class_set_kind(class, "htb");

      rtnl_class_set_ifindex(class, ifindex);

      if (rtnl_tc_str2handle(hndl, &handle) < 0) {
              fprintf(stderr, "%s\n", nl_geterror());
              goto errout_free_class;
      }
      rtnl_class_set_handle(class, handle);

      if (rtnl_tc_str2handle(prt, &parent) < 0) {
              fprintf(stderr, "%s\n", nl_geterror());
              goto errout_free_class;
      }
      rtnl_class_set_parent(class, parent);

      if(prio)
              rtnl_htb_set_prio(class, prio);
      rtnl_htb_set_rate(class, rate);
      if(ceil)
              rtnl_htb_set_ceil(class, ceil);

      if (nltool_connect(nlh, NETLINK_ROUTE) < 0)
              goto errout_free_class;
      if ((err = rtnl_class_add(nlh, class, NLM_F_REPLACE)) < 0) {
              fprintf(stderr, "Unable to add Qdisc: %s\n", nl_geterror());
              goto errout_add;
      }

      rtnl_class_put(class);

      return err;

errout_free_class:
      rtnl_class_put(class);
      return -1;
errout_add:
      rtnl_class_put(class);
      return err;
}

Do you have an idea ?

Edouard.
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