redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

nl80211: announce radios/interfaces when switching namespaces 

When a wiphy changes its namespace, all interfaces are moved to the
new namespace as well. The network interfaces are properly announced
as leaving on the old and as appearing on the new namespace through
RTM_NEWLINK/RTM_DELLINK. On nl80211, however, these events are missing
for radios and their interfaces.

Add netlink announcements through nl80211 when switching namespaces,
so userspace can rely on these events to discover radios properly.

Signed-off-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
hifive-unleashed-5.1
Martin Willi 2018-10-27 09:31:24 +02:00 committed by Johannes Berg
parent cee7013be9
commit c90b670b5c
1 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
net/wireless/core.c
View File

@ -191,11 +191,25 @@ int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
return err;
}
list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
if (!wdev->netdev)
continue;
nl80211_notify_iface(rdev, wdev, NL80211_CMD_DEL_INTERFACE);
}
nl80211_notify_wiphy(rdev, NL80211_CMD_DEL_WIPHY);
wiphy_net_set(&rdev->wiphy, net);
err = device_rename(&rdev->wiphy.dev, dev_name(&rdev->wiphy.dev));
WARN_ON(err);
nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) {
if (!wdev->netdev)
continue;
nl80211_notify_iface(rdev, wdev, NL80211_CMD_NEW_INTERFACE);
}
return 0;
}