diff options
| author | Patrick McHardy <kaber@trash.net> | 2007-07-30 17:07:14 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-07-31 02:28:18 -0700 |
| commit | bdba91ec70fb5ccbdeb1c7068319adc6ea9e1a7d (patch) | |
| tree | a5897654a7a6ef6338ea15bab7d11b2315b4f19e /net/sched/sch_prio.c | |
| parent | 20283d84c7d922ca225b20db651d9a062716e8e3 (diff) | |
| download | blackbird-op-linux-bdba91ec70fb5ccbdeb1c7068319adc6ea9e1a7d.tar.gz blackbird-op-linux-bdba91ec70fb5ccbdeb1c7068319adc6ea9e1a7d.zip | |
[NET_SCHED]: Fix prio/ingress classification logic error
Fix handling of empty or completely non-matching filter chains. In
that case -1 is returned and tcf_result is uninitialized, the
qdisc should fall back to default classification in that case.
Noticed by PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com>.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_prio.c')
| -rw-r--r-- | net/sched/sch_prio.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c index 2d8c08493d6e..71bafde353a6 100644 --- a/net/sched/sch_prio.c +++ b/net/sched/sch_prio.c @@ -38,9 +38,11 @@ prio_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr) struct prio_sched_data *q = qdisc_priv(sch); u32 band = skb->priority; struct tcf_result res; + int err; *qerr = NET_XMIT_BYPASS; if (TC_H_MAJ(skb->priority) != sch->handle) { + err = tc_classify(skb, q->filter_list, &res); #ifdef CONFIG_NET_CLS_ACT switch (tc_classify(skb, q->filter_list, &res)) { case TC_ACT_STOLEN: @@ -49,11 +51,8 @@ prio_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr) case TC_ACT_SHOT: return NULL; } - - if (!q->filter_list ) { -#else - if (!q->filter_list || tc_classify(skb, q->filter_list, &res)) { #endif + if (!q->filter_list || err < 0) { if (TC_H_MAJ(band)) band = 0; band = q->prio2band[band&TC_PRIO_MAX]; |
