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| author | Taehee Yoo <ap420073@gmail.com> | 2018-10-07 00:09:32 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-13 14:02:40 -0700 |
| commit | e6e00017910cadeace868ebe3bb6369accc486a4 (patch) | |
| tree | 6821c2b2252a997e10c618ea96658ad0b2ce34fd | |
| parent | 02d86085cac6365ecf68a124ac05fbe1acb60377 (diff) | |
| download | linux-stable-e6e00017910cadeace868ebe3bb6369accc486a4.tar.gz linux-stable-e6e00017910cadeace868ebe3bb6369accc486a4.tar.bz2 linux-stable-e6e00017910cadeace868ebe3bb6369accc486a4.zip | |
netfilter: xt_TEE: add missing code to get interface index in checkentry.
[ Upstream commit 18c0ab87364ac5128a152055fdcb1d27e01caf01 ]
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: 9e2f6c5d78db ("netfilter: Rework xt_TEE netdevice notifier")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | net/netfilter/xt_TEE.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/netfilter/xt_TEE.c b/net/netfilter/xt_TEE.c index 673ad2099f97..1dae02a97ee3 100644 --- a/net/netfilter/xt_TEE.c +++ b/net/netfilter/xt_TEE.c @@ -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); |