diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/sched/cls_api.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index a193cc7b3241..1daeb2182b70 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -1681,12 +1681,16 @@ reclassify: * time we got here with a cookie from hardware. */ if (unlikely(n->tp != tp || n->tp->chain != n->chain || - !tp->ops->get_exts)) + !tp->ops->get_exts)) { + tcf_set_drop_reason(res, SKB_DROP_REASON_TC_ERROR); return TC_ACT_SHOT; + } exts = tp->ops->get_exts(tp, n->handle); - if (unlikely(!exts || n->exts != exts)) + if (unlikely(!exts || n->exts != exts)) { + tcf_set_drop_reason(res, SKB_DROP_REASON_TC_ERROR); return TC_ACT_SHOT; + } n = NULL; err = tcf_exts_exec_ex(skb, exts, act_index, res); @@ -1712,8 +1716,10 @@ reclassify: return err; } - if (unlikely(n)) + if (unlikely(n)) { + tcf_set_drop_reason(res, SKB_DROP_REASON_TC_ERROR); return TC_ACT_SHOT; + } return TC_ACT_UNSPEC; /* signal: continue lookup */ #ifdef CONFIG_NET_CLS_ACT @@ -1723,6 +1729,7 @@ reset: tp->chain->block->index, tp->prio & 0xffff, ntohs(tp->protocol)); + tcf_set_drop_reason(res, SKB_DROP_REASON_TC_ERROR); return TC_ACT_SHOT; } @@ -1759,8 +1766,10 @@ int tcf_classify(struct sk_buff *skb, if (ext->act_miss) { n = tcf_exts_miss_cookie_lookup(ext->act_miss_cookie, &act_index); - if (!n) + if (!n) { + tcf_set_drop_reason(res, SKB_DROP_REASON_TC_ERROR); return TC_ACT_SHOT; + } chain = n->chain_index; } else { @@ -1768,8 +1777,10 @@ int tcf_classify(struct sk_buff *skb, } fchain = tcf_chain_lookup_rcu(block, chain); - if (!fchain) + if (!fchain) { + tcf_set_drop_reason(res, SKB_DROP_REASON_TC_ERROR); return TC_ACT_SHOT; + } /* Consume, so cloned/redirect skbs won't inherit ext */ skb_ext_del(skb, TC_SKB_EXT); @@ -1788,8 +1799,11 @@ int tcf_classify(struct sk_buff *skb, struct tc_skb_cb *cb = tc_skb_cb(skb); ext = tc_skb_ext_alloc(skb); - if (WARN_ON_ONCE(!ext)) + if (WARN_ON_ONCE(!ext)) { + tcf_set_drop_reason(res, SKB_DROP_REASON_TC_ERROR); return TC_ACT_SHOT; + } + ext->chain = last_executed_chain; ext->mru = cb->mru; ext->post_ct = cb->post_ct; |