netfilter: nft_masq: register/unregister notifiers on module init/exit
We have to register the notifiers in the masquerade expression from the the module _init and _exit path. This fixes crashes when removing the masquerade rule with no ipt_MASQUERADE support in place (which was masking the problem). Fixes: 9ba1f726 ("netfilter: nf_tables: add new nft_masq expression") Signed-off-by: NArturo Borrero Gonzalez <arturo.borrero.glez@gmail.com> Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
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