net/sched: sch_frag: add generic packet fragment support.
Currently kernel tc subsystem can do conntrack in cat_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. This patch add support for a xmit hook to mirred, that gets executed before xmiting the packet. Then, when act_ct gets loaded, it configs that hook. The frag xmit hook maybe reused by other modules. Signed-off-by:wenxu <wenxu@ucloud.cn> Acked-by:
Cong Wang <cong.wang@bytedance.com> Acked-by:
Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
parent
fa6d6399
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