Unified TC attributes interface

So far all common tc atttributes were accessed via specific functions, i.e.
rtnl_class_set_parent(), rtnl_qdisc_set_parent(), rtnl_cls_set_parent()
which implied a lot of code duplication. Since all tc objects are derived
from struct rtnl_tc and these common attributes are already stored in there
this patch removes all type specific functions and makes rtnl_tc_* attribute
functions public.

        rtnl_qdisc_set_parent(qdisc, 10);

becomes:

        rtnl_tc_set_parent((struct rtnl_tc *) qdisc, 10);

This patch also adds the following new attributes to tc objects therefore
removing them as tc specific attributes:
 - mtu
 - mpu
 - overhead

This allows for the rate table calculations to be unified as well taking into
account the new kernel behavior to take care of overhead automatically.

1 files changed, 6 insertions, 3 deletions

diff --git a/src/nl-qdisc-delete.c b/src/nl-qdisc-delete.c
index 24424a7..e91b054 100644
--- a/src/nl-qdisc-delete.c
+++ b/src/nl-qdisc-delete.c
@@ -10,6 +10,7 @@
  */
 
 #include <netlink/cli/utils.h>
+#include <netlink/cli/tc.h>
 #include <netlink/cli/qdisc.h>
 #include <netlink/cli/link.h>
 
@@ -63,6 +64,7 @@ static void delete_cb(struct nl_object *obj, void *arg)
 int main(int argc, char *argv[])
 {
 	struct rtnl_qdisc *qdisc;
+	struct rtnl_tc *tc;
 	struct nl_cache *link_cache, *qdisc_cache;
 	int nfilter = 0;
  
@@ -71,6 +73,7 @@ int main(int argc, char *argv[])
 	link_cache = nl_cli_link_alloc_cache(sock);
 	qdisc_cache = nl_cli_qdisc_alloc_cache(sock);
  	qdisc = nl_cli_qdisc_alloc();
+	tc = (struct rtnl_tc *) qdisc;
  
 	for (;;) {
 		int c, optidx = 0;
@@ -104,15 +107,15 @@ int main(int argc, char *argv[])
 		case 'v': nl_cli_print_version(); break;
 		case 'd':
 			nfilter++;
-			nl_cli_qdisc_parse_dev(qdisc, link_cache, optarg);
+			nl_cli_tc_parse_dev(tc, link_cache, optarg);
 			break;
 		case 'p':
 			nfilter++;
-			nl_cli_qdisc_parse_parent(qdisc, optarg);
+			nl_cli_tc_parse_parent(tc, optarg);
 			break;
 		case 'i':
 			nfilter++;
-			nl_cli_qdisc_parse_handle(qdisc, optarg);
+			nl_cli_tc_parse_handle(tc, optarg);
 			break;
 		case 'k':
 			nfilter++;