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Commit 30a391a1 authored by Roman Mashak's avatar Roman Mashak Committed by David S. Miller
Browse files

net sched filters: pass netlink message flags in event notification 



Userland client should be able to read an event, and reflect it back to
the kernel, therefore it needs to extract complete set of netlink flags.

For example, this will allow "tc monitor" to distinguish Add and Replace
operations.

Signed-off-by: default avatarRoman Mashak <mrv@mojatatu.com>
Signed-off-by: default avatarJamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b5c2d495

net/sched/cls_api.c

+3 −2
Original line number Diff line number Diff line
@@ -112,7 +112,7 @@ static void tfilter_notify_chain(struct net *net, struct sk_buff *oskb, 


	for (it_chain = chain; (tp = rtnl_dereference(*it_chain)) != NULL;

	     it_chain = &tp->next)

		tfilter_notify(net, oskb, n, tp, 0, event, false);

		tfilter_notify(net, oskb, n, tp, n->nlmsg_flags, event, false);

}



/* Select new prio value from the range, managed by kernel. */
@@ -430,7 +430,8 @@ static int tfilter_notify(struct net *net, struct sk_buff *oskb, 
	if (!skb)

		return -ENOBUFS;



	if (tcf_fill_node(net, skb, tp, fh, portid, n->nlmsg_seq, 0, event) <= 0) {

	if (tcf_fill_node(net, skb, tp, fh, portid, n->nlmsg_seq,

			  n->nlmsg_flags, event) <= 0) {

		kfree_skb(skb);

		return -EINVAL;

	}