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ematch: Fix matching of inverted containers.

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Negated expressions and sub-expressions need to have their flags checked for
TCF_EM_INVERT and their result negated accordingly.

Signed-off-by: Ignacy Gawędzki <ignacy.gawedzki@green-communications.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ignacy Gawędzki 2014-09-24 18:38:39 +02:00 committed by David S. Miller
parent 73d3fe6d1c
commit 17c9c82326
1 changed files with 4 additions and 2 deletions
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6
net/sched/ematch.c
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@ -526,9 +526,11 @@ int __tcf_em_tree_match(struct sk_buff *skb, struct tcf_ematch_tree *tree,
match_idx = stack[--stackp]; match_idx = stack[--stackp];
cur_match = tcf_em_get_match(tree, match_idx); cur_match = tcf_em_get_match(tree, match_idx);
if (tcf_em_early_end(cur_match, res)) if (tcf_em_early_end(cur_match, res)) {
if (tcf_em_is_inverted(cur_match))
res = !res;
goto pop_stack; goto pop_stack;
else { } else {
match_idx++; match_idx++;
goto proceed; goto proceed;
} }