From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 20/27] netfilter: reset netfilter state when duplicating packet
Date: Fri, 3 Feb 2017 13:25:31 +0100 [thread overview]
Message-ID: <1486124738-3013-21-git-send-email-pablo@netfilter.org> (raw)
In-Reply-To: <1486124738-3013-1-git-send-email-pablo@netfilter.org>
From: Florian Westphal <fw@strlen.de>
We should also toss nf_bridge_info, if any -- packet is leaving via
ip_local_out, also, this skb isn't bridged -- it is a locally generated
copy. Also this avoids the need to touch this later when skb->nfct is
replaced with 'unsigned long _nfct' in followup patch.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/ipv4/netfilter/nf_dup_ipv4.c | 2 +-
net/ipv6/netfilter/nf_dup_ipv6.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/ipv4/netfilter/nf_dup_ipv4.c b/net/ipv4/netfilter/nf_dup_ipv4.c
index cf986e1c7bbd..a981ef7151ca 100644
--- a/net/ipv4/netfilter/nf_dup_ipv4.c
+++ b/net/ipv4/netfilter/nf_dup_ipv4.c
@@ -68,7 +68,7 @@ void nf_dup_ipv4(struct net *net, struct sk_buff *skb, unsigned int hooknum,
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
/* Avoid counting cloned packets towards the original connection. */
- nf_conntrack_put(skb->nfct);
+ nf_reset(skb);
skb->nfct = &nf_ct_untracked_get()->ct_general;
skb->nfctinfo = IP_CT_NEW;
nf_conntrack_get(skb->nfct);
diff --git a/net/ipv6/netfilter/nf_dup_ipv6.c b/net/ipv6/netfilter/nf_dup_ipv6.c
index 4a84b5ad9ecb..5f52e5f90e7e 100644
--- a/net/ipv6/netfilter/nf_dup_ipv6.c
+++ b/net/ipv6/netfilter/nf_dup_ipv6.c
@@ -57,7 +57,7 @@ void nf_dup_ipv6(struct net *net, struct sk_buff *skb, unsigned int hooknum,
return;
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
- nf_conntrack_put(skb->nfct);
+ nf_reset(skb);
skb->nfct = &nf_ct_untracked_get()->ct_general;
skb->nfctinfo = IP_CT_NEW;
nf_conntrack_get(skb->nfct);
--
2.1.4
next prev parent reply other threads:[~2017-02-03 12:25 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-03 12:25 [PATCH 00/27] Netfilter updates for net-next Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 01/27] netfilter: merge udp and udplite conntrack helpers Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 02/27] netfilter: nat: merge udp and udplite helpers Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 03/27] netfilter: nf_tables: add missing descriptions in nft_ct_keys Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 04/27] netfilter: nft_ct: add average bytes per packet support Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 05/27] netfilter: select LIBCRC32C together with SCTP conntrack Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 06/27] netfilter: conntrack: validate SCTP crc32c in PREROUTING Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 07/27] netfilter: xt_connlimit: use rb_entry() Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 08/27] xtables: add xt_match, xt_target and data copy_to_user functions Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 09/27] iptables: use match, target and data copy_to_user helpers Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 10/27] ip6tables: " Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 11/27] arptables: " Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 12/27] ebtables: " Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 13/27] xtables: use match, target and data copy_to_user helpers in compat Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 14/27] xtables: extend matches and targets with .usersize Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 15/27] netfilter: pkttype: unnecessary to check ipv6 multicast address Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 16/27] netfilter: nft_meta: deal with PACKET_LOOPBACK in netdev family Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 17/27] netfilter: nf_tables: eliminate useless condition checks Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 18/27] netfilter: nf_tables: Eliminate duplicated code in nf_tables_table_enable() Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 19/27] netfilter: conntrack: no need to pass ctinfo to error handler Pablo Neira Ayuso
2017-02-03 12:25 ` Pablo Neira Ayuso [this message]
2017-02-03 12:25 ` [PATCH 21/27] netfilter: reduce direct skb->nfct usage Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 22/27] skbuff: add and use skb_nfct helper Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 23/27] netfilter: add and use nf_ct_set helper Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 24/27] netfilter: guarantee 8 byte minalign for template addresses Pablo Neira Ayuso
2017-02-06 10:08 ` David Laight
2017-02-03 12:25 ` [PATCH 25/27] netfilter: merge ctinfo into nfct pointer storage area Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 26/27] ipvs: free ip_vs_dest structs when refcnt=0 Pablo Neira Ayuso
2017-02-03 12:25 ` [PATCH 27/27] netfilter: allow logging from non-init namespaces Pablo Neira Ayuso
2017-02-03 22:08 ` [PATCH 00/27] Netfilter updates for net-next David Miller
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