On Mon, Apr 15, 2019 at 07:50:34AM +0200, Pablo Neira Ayuso wrote:
> On Sat, Apr 13, 2019 at 08:17:10PM -0300, Flavio Leitner wrote:
> [...]
> > +void nf_nat_helper_put(struct nf_conntrack_helper *helper)
> > +{
> > + struct nf_conntrack_nat_helper *nat;
> > +
> > + nat = nf_conntrack_nat_helper_find(helper->nat_mod_name);
> > + BUG_ON(nat == NULL);
>
> We've been trying to avoid BUG_ON() in many spots recently. Could you
> turn this into... ?
>
> if (WARN_ON(!nat))
> return;
OK.
>
> > + module_put(nat->module);
> > +}
> > +EXPORT_SYMBOL_GPL(nf_nat_helper_put);
> > +
> > struct nf_conn_help *
> > nf_ct_helper_ext_add(struct nf_conn *ct, gfp_t gfp)
> > {
> > @@ -430,6 +502,10 @@ void nf_ct_helper_init(struct nf_conntrack_helper
> > *helper,
> > helper->help = help;
> > helper->from_nlattr = from_nlattr;
> > helper->me = module;
> > + helper->nat_mod_name[0] = '\0';
> > + if (name)
> > + snprintf(helper->nat_mod_name, sizeof(helper->nat_mod_name),
> > + NF_NAT_HELPER_PREFIX"%s", name);
> >
> > if (spec_port == default_port)
> > snprintf(helper->name, sizeof(helper->name), "%s", name);
> > @@ -466,6 +542,26 @@ void nf_conntrack_helpers_unregister(struct
> > nf_conntrack_helper *helper,
> > }
> > EXPORT_SYMBOL_GPL(nf_conntrack_helpers_unregister);
> >
> > +void nf_nat_helper_register(struct nf_conntrack_nat_helper *nat)
> > +{
> > + BUG_ON(nat->module == NULL);
>
> Same here.
OK, no problem.
>
> > +
> > + mutex_lock(&nf_ct_nat_helpers_mutex);
> > + list_add_rcu(&nat->list, &nf_ct_nat_helpers);
> > + mutex_unlock(&nf_ct_nat_helpers_mutex);
> > +}
> > +EXPORT_SYMBOL_GPL(nf_nat_helper_register);
> > +
> > +void nf_nat_helper_unregister(struct nf_conntrack_nat_helper *nat)
> > +{
> > + BUG_ON(nat->module == NULL);
>
> And here.
Sure.
Thanks!
fbl
>
> Thanks.
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