diff options
| author | Nicolas Dichtel <nicolas.dichtel@6wind.com> | 2015-02-05 18:21:30 +0100 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2015-02-14 05:19:58 +0100 |
| commit | f9d1ce8f81eb046626cfa1bb0f419f8dca04bcae (patch) | |
| tree | 80ebdf697f1b07b301dd0887d697dd2dad8b7356 /net/ieee802154/6lowpan/core.c | |
| parent | a715d11e453c37822eca675a4445c1ce4ea7297e (diff) | |
ieee802154: fix netns settings
6LoWPAN currently doesn't supports x-netns and works only in init_net.
With this patch, we ensure that:
- the wpan interface cannot be moved to another netns;
- the 6lowpan interface cannot be moved to another netns;
- the wpan interface is in the same netns than the 6lowpan interface;
- the 6lowpan interface is in init_net.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/ieee802154/6lowpan/core.c')
| -rw-r--r-- | net/ieee802154/6lowpan/core.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c index 055fbb71ba6f..dfd3c6007f60 100644 --- a/net/ieee802154/6lowpan/core.c +++ b/net/ieee802154/6lowpan/core.c @@ -126,6 +126,7 @@ static void lowpan_setup(struct net_device *dev) dev->header_ops = &lowpan_header_ops; dev->ml_priv = &lowpan_mlme; dev->destructor = free_netdev; + dev->features |= NETIF_F_NETNS_LOCAL; } static int lowpan_validate(struct nlattr *tb[], struct nlattr *data[]) @@ -148,10 +149,11 @@ static int lowpan_newlink(struct net *src_net, struct net_device *dev, pr_debug("adding new link\n"); - if (!tb[IFLA_LINK]) + if (!tb[IFLA_LINK] || + !net_eq(dev_net(dev), &init_net)) return -EINVAL; /* find and hold real wpan device */ - real_dev = dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK])); + real_dev = dev_get_by_index(dev_net(dev), nla_get_u32(tb[IFLA_LINK])); if (!real_dev) return -ENODEV; if (real_dev->type != ARPHRD_IEEE802154) { |