From: Pablo Neira Ayuso <pablo@netfilter.org>
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 31/31] netfilter: nf_tables_offload: unbind if multi-device binding fails
Date: Sat, 26 Oct 2019 13:47:33 +0200 [thread overview]
Message-ID: <20191026114733.28111-32-pablo@netfilter.org> (raw)
In-Reply-To: <20191026114733.28111-1-pablo@netfilter.org>
nft_flow_block_chain() needs to unbind in case of error when performing
the multi-device binding.
Fixes: d54725cd11a5 ("netfilter: nf_tables: support for multiple devices per netdev hook")
Reported-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/netfilter/nf_tables_offload.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c
index d51728affa1c..4e0625cce647 100644
--- a/net/netfilter/nf_tables_offload.c
+++ b/net/netfilter/nf_tables_offload.c
@@ -336,7 +336,7 @@ static int nft_flow_block_chain(struct nft_base_chain *basechain,
{
struct net_device *dev;
struct nft_hook *hook;
- int err;
+ int err, i = 0;
list_for_each_entry(hook, &basechain->hook_list, list) {
dev = hook->ops.dev;
@@ -344,11 +344,26 @@ static int nft_flow_block_chain(struct nft_base_chain *basechain,
continue;
err = nft_chain_offload_cmd(basechain, dev, cmd);
- if (err < 0)
+ if (err < 0 && cmd == FLOW_BLOCK_BIND) {
+ if (!this_dev)
+ goto err_flow_block;
+
return err;
+ }
+ i++;
}
return 0;
+
+err_flow_block:
+ list_for_each_entry(hook, &basechain->hook_list, list) {
+ if (i-- <= 0)
+ break;
+
+ dev = hook->ops.dev;
+ nft_chain_offload_cmd(basechain, dev, FLOW_BLOCK_UNBIND);
+ }
+ return err;
}
static int nft_flow_offload_chain(struct nft_chain *chain, u8 *ppolicy,
--
2.11.0
next prev parent reply other threads:[~2019-10-26 11:48 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-26 11:47 [PATCH 00/31] Netfilter/IPVS updates for net-next Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 01/31] netfilter: ipset: add a coding-style fix to ip_set_ext_destroy Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 02/31] netfilter: ipset: remove inline from static functions in .c files Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 03/31] netfilter: ipset: move ip_set_comment functions from ip_set.h to ip_set_core.c Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 04/31] netfilter: ipset: move functions " Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 05/31] netfilter: ipset: make ip_set_put_flags extern Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 06/31] netfilter: ipset: move function to ip_set_bitmap_ip.c Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 07/31] netfilter: ipset: move ip_set_get_ip_port() to ip_set_bitmap_port.c Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 08/31] ipvs: no need to update skb route entry for local destination packets Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 09/31] ipvs: batch __ip_vs_cleanup Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 10/31] ipvs: batch __ip_vs_dev_cleanup Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 11/31] selftests: netfilter: add ipvs test script Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 12/31] selftests: netfilter: add ipvs nat test case Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 13/31] selftests: netfilter: add ipvs tunnel " Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 14/31] netfilter: ecache: document extension area access rules Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 15/31] netfilter: ctnetlink: don't dump ct extensions of unconfirmed conntracks Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 16/31] netfilter: conntrack: free extension area immediately Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 17/31] netfilter: add and use nf_hook_slow_list() Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 18/31] netfilter: nft_tproxy: Fix typo in IPv6 module description Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 19/31] netfilter: nf_flow_table: move priority to struct nf_flowtable Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 20/31] netfilter: nf_tables: dynamically allocate hooks per net_device in flowtables Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 21/31] netfilter: nf_tables: allow netdevice to be used only once per flowtable Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 22/31] netfilter: nf_tables: increase maximum devices number " Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 23/31] netfilter: nf_tables_offload: add nft_flow_block_chain() Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 24/31] netfilter: nf_tables_offload: Pass callback list to nft_setup_cb_call() Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 25/31] netfilter: nf_tables_offload: add nft_flow_cls_offload_setup() Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 26/31] netfilter: nf_tables_offload: remove rules on unregistered device only Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 27/31] netfilter: nf_tables: support for multiple devices per netdev hook Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 28/31] netfilter: ecache: don't look for ecache extension on dying/unconfirmed conntracks Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 29/31] netfilter: nf_tables_offload: add nft_chain_offload_cmd() Pablo Neira Ayuso
2019-10-26 11:47 ` [PATCH 30/31] netfilter: nf_tables_offload: add nft_flow_block_offload_init() Pablo Neira Ayuso
2019-10-26 11:47 ` Pablo Neira Ayuso [this message]
2019-10-26 18:36 ` [PATCH 00/31] Netfilter/IPVS updates for net-next David Miller
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