From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 06/18] netfilter: xtables: allow table definitions not backed by hook_ops
Date: Wed, 23 May 2018 20:42:42 +0200 [thread overview]
Message-ID: <20180523184254.22599-7-pablo@netfilter.org> (raw)
In-Reply-To: <20180523184254.22599-1-pablo@netfilter.org>
From: Florian Westphal <fw@strlen.de>
The ip(6)tables nat table is currently receiving skbs from the netfilter
core, after a followup patch skbs will be coming from the netfilter nat
core instead, so the table is no longer backed by normal hook_ops.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/ipv4/netfilter/ip_tables.c | 5 ++++-
net/ipv6/netfilter/ip6_tables.c | 5 ++++-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 444f125f3974..ddcc56c37d4d 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -1782,6 +1782,8 @@ int ipt_register_table(struct net *net, const struct xt_table *table,
/* set res now, will see skbs right after nf_register_net_hooks */
WRITE_ONCE(*res, new_table);
+ if (!ops)
+ return 0;
ret = nf_register_net_hooks(net, ops, hweight32(table->valid_hooks));
if (ret != 0) {
@@ -1799,7 +1801,8 @@ int ipt_register_table(struct net *net, const struct xt_table *table,
void ipt_unregister_table(struct net *net, struct xt_table *table,
const struct nf_hook_ops *ops)
{
- nf_unregister_net_hooks(net, ops, hweight32(table->valid_hooks));
+ if (ops)
+ nf_unregister_net_hooks(net, ops, hweight32(table->valid_hooks));
__ipt_unregister_table(net, table);
}
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 7097bbf95843..e18b14b2e019 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -1792,6 +1792,8 @@ int ip6t_register_table(struct net *net, const struct xt_table *table,
/* set res now, will see skbs right after nf_register_net_hooks */
WRITE_ONCE(*res, new_table);
+ if (!ops)
+ return 0;
ret = nf_register_net_hooks(net, ops, hweight32(table->valid_hooks));
if (ret != 0) {
@@ -1809,7 +1811,8 @@ int ip6t_register_table(struct net *net, const struct xt_table *table,
void ip6t_unregister_table(struct net *net, struct xt_table *table,
const struct nf_hook_ops *ops)
{
- nf_unregister_net_hooks(net, ops, hweight32(table->valid_hooks));
+ if (ops)
+ nf_unregister_net_hooks(net, ops, hweight32(table->valid_hooks));
__ip6t_unregister_table(net, table);
}
--
2.11.0
next prev parent reply other threads:[~2018-05-23 18:43 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-23 18:42 [PATCH 00/18] Netfilter updates for net-next Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 01/18] netfilter: fix fallout from xt/nf osf separation Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 02/18] netfilter: nf_tables: remove old nf_log based tracing Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 03/18] netfilter: nft_numgen: add map lookups for numgen random operations Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 04/18] netfilter: nft_hash: add map lookups for hashing operations Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 05/18] netfilter: nf_nat: move common nat code to nat core Pablo Neira Ayuso
2018-05-23 18:42 ` Pablo Neira Ayuso [this message]
2018-05-23 18:42 ` [PATCH 07/18] netfilter: nf_tables: allow chain type to override hook register Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 08/18] netfilter: core: export raw versions of add/delete hook functions Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 09/18] netfilter: nf_nat: add nat hook register functions to nf_nat Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 10/18] netfilter: nf_nat: add nat type hooks to nat core Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 11/18] netfilter: lift one-nat-hook-only restriction Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 12/18] netfilter: make NF_OSF non-visible symbol Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 13/18] netfilter: nft_set_rbtree: add timeout support Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 14/18] netfilter: ip6t_rpfilter: provide input interface for route lookup Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 15/18] netfilter: add struct nf_ct_hook and use it Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 16/18] netfilter: add struct nf_nat_hook " Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 17/18] netfilter: nfnetlink_queue: resolve clash for unconfirmed conntracks Pablo Neira Ayuso
2018-05-23 18:42 ` [PATCH 18/18] netfilter: nf_tables: remove nft_af_info Pablo Neira Ayuso
2018-05-23 20:37 ` [PATCH 00/18] Netfilter updates for net-next David Miller
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