[NETFILTER]: xt_string: fix negation
The xt_string match is broken with ! negation.
This resolves a portion of netfilter bugzilla #497.
Signed-off-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/xt_string.c b/net/netfilter/xt_string.c
index d8e3891..275330f 100644
--- a/net/netfilter/xt_string.c
+++ b/net/netfilter/xt_string.c
@@ -37,7 +37,7 @@
return (skb_find_text((struct sk_buff *)skb, conf->from_offset,
conf->to_offset, conf->config, &state)
- != UINT_MAX) && !conf->invert;
+ != UINT_MAX) ^ conf->invert;
}
#define STRING_TEXT_PRIV(m) ((struct xt_string_info *) m)