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sch_htb: let skb->priority refer to non-leaf class 

If the class in skb->priority is not a leaf, apply filters from the
selected class, not the qdisc. This lets netfilter or user space
partially classify the packet.

Signed-off-by: Harry Mason <harry.mason@smoothwall.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Harry Mason 2014-01-17 13:22:32 +00:00 committed by David S. Miller
parent 2d36097d26
commit 29824310ce
1 changed files with 8 additions and 3 deletions
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9
net/sched/sch_htb.c
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@ -219,11 +219,16 @@ static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
if (skb->priority == sch->handle)
return HTB_DIRECT; /* X:0 (direct flow) selected */
cl = htb_find(skb->priority, sch);
if (cl && cl->level == 0)
if (cl) {
if (cl->level == 0)
return cl;
/* Start with inner filter chain if a non-leaf class is selected */
tcf = cl->filter_list;
} else {
tcf = q->filter_list;
}
*qerr = NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
tcf = q->filter_list;
while (tcf && (result = tc_classify(skb, tcf, &res)) >= 0) {
#ifdef CONFIG_NET_CLS_ACT
switch (result) {