From: pablo@netfilter.org
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 1/2] netfilter: ipset: timeout values corrupted on set resize
Date: Tue, 26 Feb 2013 14:45:19 +0100 [thread overview]
Message-ID: <1361886320-9492-2-git-send-email-pablo@netfilter.org> (raw)
In-Reply-To: <1361886320-9492-1-git-send-email-pablo@netfilter.org>
From: Josh Hunt <johunt@akamai.com>
If a resize is triggered on a set with timeouts enabled, the timeout
values will get corrupted when copying them to the new set. This occured
b/c the wrong timeout value is supplied to type_pf_elem_tadd().
This also adds simple debug statement similar to the one in type_pf_resize().
Signed-off-by: Josh Hunt <johunt@akamai.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
include/linux/netfilter/ipset/ip_set_ahash.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/linux/netfilter/ipset/ip_set_ahash.h b/include/linux/netfilter/ipset/ip_set_ahash.h
index ef9acd3..01d25e6 100644
--- a/include/linux/netfilter/ipset/ip_set_ahash.h
+++ b/include/linux/netfilter/ipset/ip_set_ahash.h
@@ -854,6 +854,8 @@ type_pf_tresize(struct ip_set *set, bool retried)
retry:
ret = 0;
htable_bits++;
+ pr_debug("attempt to resize set %s from %u to %u, t %p\n",
+ set->name, orig->htable_bits, htable_bits, orig);
if (!htable_bits) {
/* In case we have plenty of memory :-) */
pr_warning("Cannot increase the hashsize of set %s further\n",
@@ -873,7 +875,7 @@ retry:
data = ahash_tdata(n, j);
m = hbucket(t, HKEY(data, h->initval, htable_bits));
ret = type_pf_elem_tadd(m, data, AHASH_MAX(h), 0,
- type_pf_data_timeout(data));
+ ip_set_timeout_get(type_pf_data_timeout(data)));
if (ret < 0) {
read_unlock_bh(&set->lock);
ahash_destroy(t);
--
1.7.10.4
next prev parent reply other threads:[~2013-02-26 13:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-26 13:45 [PATCH 0/2] netfilter fixes for net pablo
2013-02-26 13:45 ` pablo [this message]
2013-02-26 13:45 ` [PATCH 2/2] netfilter: ipset: "Directory not empty" error message pablo
2013-02-26 22:24 ` [PATCH 0/2] netfilter fixes for net David Miller
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