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[v10,net-next,0/3] net/sched: fix over mtu packet of defrag in

Message ID 1605151497-29986-1-git-send-email-wenxu@ucloud.cn (mailing list archive)
Headers show
Series net/sched: fix over mtu packet of defrag in | expand

Message

wenxu Nov. 12, 2020, 3:24 a.m. UTC 
From: wenxu <wenxu@ucloud.cn>

Currently kernel tc subsystem can do conntrack in act_ct. But when several
fragment packets go through the act_ct, function tcf_ct_handle_fragments
will defrag the packets to a big one. But the last action will redirect
mirred to a device which maybe lead the reassembly big packet over the mtu
of target device.

The first patch fix miss init the qdisc_skb_cb->mru
The send one refactor the hanle of xmit in act_mirred and prepare for the
third one
The last one add implict packet fragment support to fix the over mtu for
defrag in act_ct.

wenxu (3):
  net/sched: fix miss init the mru in qdisc_skb_cb
  net/sched: act_mirred: refactor the handle of xmit
  net/sched: act_frag: add implict packet fragment support.

 include/net/act_api.h     |  18 +++++
 include/net/sch_generic.h |   5 --
 net/core/dev.c            |   2 +
 net/sched/Kconfig         |  13 ++++
 net/sched/Makefile        |   1 +
 net/sched/act_api.c       |  44 +++++++++++++
 net/sched/act_ct.c        |   7 ++
 net/sched/act_frag.c      | 164 ++++++++++++++++++++++++++++++++++++++++++++++
 net/sched/act_mirred.c    |  21 ++++--
 9 files changed, 264 insertions(+), 11 deletions(-)
 create mode 100644 net/sched/act_frag.c