netfilter: xt_TEE: add missing code to get interface index in checkentry. (18c0ab87) · Commits · 戴 / test

checkentry(tee_tg_check) should initialize priv->oif from dev if possible. But only netdevice notifier handler can set that. Hence priv->oif is always -1 until notifier handler is called. Fixes: ("netfilter: Rework xt_TEE netdevice notifier") Signed-off-by:

Taehee Yoo <ap420073@gmail.com> Signed-off-by:

Pablo Neira Ayuso <pablo@netfilter.org>

net/netfilter/xt_TEE.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -104,6 +104,8 @@ static int tee_tg_check(const struct xt_tgchk_param *par)
		return -EINVAL;

		if (info->oif[0]) {
		struct net_device *dev;

		if (info->oif[sizeof(info->oif)-1] != '\0')
		return -EINVAL;

		@@ -115,6 +117,11 @@ static int tee_tg_check(const struct xt_tgchk_param *par)
		priv->oif = -1;
		info->priv = priv;

		dev = dev_get_by_name(par->net, info->oif);
		if (dev) {
		priv->oif = dev->ifindex;
		dev_put(dev);
		}
		mutex_lock(&tn->lock);
		list_add(&priv->list, &tn->priv_list);
		mutex_unlock(&tn->lock);

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