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Date: Tue, 7 Jul 2020 12:55:08 +0800
From: wenxu@...oud.cn
To: netdev@...r.kernel.org
Cc: netfilter-devel@...r.kernel.org, fw@...len.de
Subject: [PATCH net-next v2 0/3] make nf_ct_frag/6_gather elide the skb CB clear
From: wenxu <wenxu@...oud.cn>
Add nf_ct_frag_gather and Make nf_ct_frag6_gather elide the CB clear
when packets are defragmented by connection tracking. This can make
each subsystem such as br_netfilter, openvswitch, act_ct do defrag
without restore the CB.
This also avoid serious crashes and problems in ct subsystem.
Because Some packet schedulers store pointers in the qdisc CB private
area and parallel accesses to the SKB.
This series following up
http://patchwork.ozlabs.org/project/netdev/patch/1593422178-26949-1-git-send-email-wenxu@ucloud.cn/
patch1: add nf_ct_frag_gather elide the CB clear
patch2: make nf_ct_frag6_gather elide the CB clear
patch3: fix clobber qdisc_skb_cb in act_ct with defrag
v2: resue some ip_defrag function in patch1
wenxu (3):
net: ip_fragment: Add ip_defrag_ignore_cb support
netfilter: nf_conntrack_reasm: make nf_ct_frag6_gather elide the CB
clear
net/sched: act_ct: fix clobber qdisc_skb_cb in defrag
include/linux/netfilter_ipv6.h | 9 ++---
include/net/ip.h | 2 ++
include/net/netfilter/ipv6/nf_defrag_ipv6.h | 3 +-
net/bridge/netfilter/nf_conntrack_bridge.c | 7 ++--
net/ipv4/ip_fragment.c | 55 ++++++++++++++++++++++++-----
net/ipv6/netfilter/nf_conntrack_reasm.c | 19 ++++++----
net/ipv6/netfilter/nf_defrag_ipv6_hooks.c | 3 +-
net/openvswitch/conntrack.c | 8 ++---
net/sched/act_ct.c | 8 ++---
9 files changed, 77 insertions(+), 37 deletions(-)
--
1.8.3.1
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