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-rw-r--r--include/linux/nl80211.h9
-rw-r--r--include/net/cfg80211.h40
-rw-r--r--net/core/dev.c1
-rw-r--r--net/mac80211/cfg.c14
-rw-r--r--net/wireless/core.c75
-rw-r--r--net/wireless/core.h5
-rw-r--r--net/wireless/nl80211.c202
-rw-r--r--net/wireless/scan.c22
-rw-r--r--net/wireless/sme.c3
9 files changed, 272 insertions, 99 deletions
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 962e2232a074..cb3dc6027fd9 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -262,6 +262,9 @@
* reasons, for this the %NL80211_ATTR_DISCONNECTED_BY_AP and
* %NL80211_ATTR_REASON_CODE attributes are used.
*
+ * @NL80211_CMD_SET_WIPHY_NETNS: Set a wiphy's netns. Note that all devices
+ * associated with this wiphy must be down and will follow.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -336,6 +339,8 @@ enum nl80211_commands {
NL80211_CMD_ROAM,
NL80211_CMD_DISCONNECT,
+ NL80211_CMD_SET_WIPHY_NETNS,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -573,6 +578,8 @@ enum nl80211_commands {
* and join_ibss(), key information is in a nested attribute each
* with %NL80211_KEY_* sub-attributes
*
+ * @NL80211_ATTR_PID: Process ID of a network namespace.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -701,6 +708,8 @@ enum nl80211_attrs {
NL80211_ATTR_KEY,
NL80211_ATTR_KEYS,
+ NL80211_ATTR_PID,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index a981ca8a5701..0d278777e39c 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -542,7 +542,7 @@ struct cfg80211_ssid {
* @ie: optional information element(s) to add into Probe Request or %NULL
* @ie_len: length of ie in octets
* @wiphy: the wiphy this was for
- * @ifidx: the interface index
+ * @dev: the interface
*/
struct cfg80211_scan_request {
struct cfg80211_ssid *ssids;
@@ -554,7 +554,7 @@ struct cfg80211_scan_request {
/* internal */
struct wiphy *wiphy;
- int ifidx;
+ struct net_device *dev;
bool aborted;
};
@@ -845,7 +845,8 @@ struct cfg80211_bitrate_mask {
* @resume: wiphy device needs to be resumed
*
* @add_virtual_intf: create a new virtual interface with the given name,
- * must set the struct wireless_dev's iftype.
+ * must set the struct wireless_dev's iftype. Beware: You must create
+ * the new netdev in the wiphy's network namespace!
*
* @del_virtual_intf: remove the virtual interface determined by ifindex.
*
@@ -937,7 +938,7 @@ struct cfg80211_ops {
int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
enum nl80211_iftype type, u32 *flags,
struct vif_params *params);
- int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
+ int (*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
int (*change_virtual_intf)(struct wiphy *wiphy,
struct net_device *dev,
enum nl80211_iftype type, u32 *flags,
@@ -1088,6 +1089,9 @@ struct cfg80211_ops {
* @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
* -1 = fragmentation disabled, only odd values >= 256 used
* @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
+ * @net: the network namespace this wiphy currently lives in
+ * @netnsok: if set to false, do not allow changing the netns of this
+ * wiphy at all
*/
struct wiphy {
/* assign these fields before you register the wiphy */
@@ -1101,6 +1105,8 @@ struct wiphy {
bool custom_regulatory;
bool strict_regulatory;
+ bool netnsok;
+
enum cfg80211_signal_type signal_type;
int bss_priv_size;
@@ -1139,9 +1145,35 @@ struct wiphy {
/* dir in debugfs: ieee80211/<wiphyname> */
struct dentry *debugfsdir;
+#ifdef CONFIG_NET_NS
+ /* the network namespace this phy lives in currently */
+ struct net *_net;
+#endif
+
char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
};
+#ifdef CONFIG_NET_NS
+static inline struct net *wiphy_net(struct wiphy *wiphy)
+{
+ return wiphy->_net;
+}
+
+static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
+{
+ wiphy->_net = net;
+}
+#else
+static inline struct net *wiphy_net(struct wiphy *wiphy)
+{
+ return &init_net;
+}
+
+static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
+{
+}
+#endif
+
/**
* wiphy_priv - return priv from wiphy
*
diff --git a/net/core/dev.c b/net/core/dev.c
index d6c657ee413d..71347668c506 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5344,6 +5344,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
out:
return err;
}
+EXPORT_SYMBOL_GPL(dev_change_net_namespace);
static int dev_cpu_callback(struct notifier_block *nfb,
unsigned long action,
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 52928ad90570..4bbf5007799b 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -57,19 +57,9 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
return 0;
}
-static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
+static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
{
- struct net_device *dev;
- struct ieee80211_sub_if_data *sdata;
-
- /* we're under RTNL */
- dev = __dev_get_by_index(&init_net, ifindex);
- if (!dev)
- return -ENODEV;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- ieee80211_if_remove(sdata);
+ ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
return 0;
}
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 6891cd0e38d5..442c9f389799 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -106,7 +106,7 @@ __cfg80211_rdev_from_info(struct genl_info *info)
if (info->attrs[NL80211_ATTR_IFINDEX]) {
ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
- dev = dev_get_by_index(&init_net, ifindex);
+ dev = dev_get_by_index(genl_info_net(info), ifindex);
if (dev) {
if (dev->ieee80211_ptr)
byifidx =
@@ -151,13 +151,13 @@ cfg80211_get_dev_from_info(struct genl_info *info)
}
struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(int ifindex)
+cfg80211_get_dev_from_ifindex(struct net *net, int ifindex)
{
struct cfg80211_registered_device *rdev = ERR_PTR(-ENODEV);
struct net_device *dev;
mutex_lock(&cfg80211_mutex);
- dev = dev_get_by_index(&init_net, ifindex);
+ dev = dev_get_by_index(net, ifindex);
if (!dev)
goto out;
if (dev->ieee80211_ptr) {
@@ -222,6 +222,42 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
return 0;
}
+int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
+ struct net *net)
+{
+ struct wireless_dev *wdev;
+ int err = 0;
+
+ if (!rdev->wiphy.netnsok)
+ return -EOPNOTSUPP;
+
+ list_for_each_entry(wdev, &rdev->netdev_list, list) {
+ wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
+ err = dev_change_net_namespace(wdev->netdev, net, "wlan%d");
+ if (err)
+ break;
+ wdev->netdev->features |= NETIF_F_NETNS_LOCAL;
+ }
+
+ if (err) {
+ /* failed -- clean up to old netns */
+ net = wiphy_net(&rdev->wiphy);
+
+ list_for_each_entry_continue_reverse(wdev, &rdev->netdev_list,
+ list) {
+ wdev->netdev->features &= ~NETIF_F_NETNS_LOCAL;
+ err = dev_change_net_namespace(wdev->netdev, net,
+ "wlan%d");
+ WARN_ON(err);
+ wdev->netdev->features |= NETIF_F_NETNS_LOCAL;
+ }
+ }
+
+ wiphy_net_set(&rdev->wiphy, net);
+
+ return err;
+}
+
static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
{
struct cfg80211_registered_device *rdev = data;
@@ -375,6 +411,8 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
rdev->wiphy.dev.class = &ieee80211_class;
rdev->wiphy.dev.platform_data = rdev;
+ wiphy_net_set(&rdev->wiphy, &init_net);
+
rdev->rfkill_ops.set_block = cfg80211_rfkill_set_block;
rdev->rfkill = rfkill_alloc(dev_name(&rdev->wiphy.dev),
&rdev->wiphy.dev, RFKILL_TYPE_WLAN,
@@ -615,6 +653,9 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
spin_lock_init(&wdev->event_lock);
mutex_lock(&rdev->devlist_mtx);
list_add(&wdev->list, &rdev->netdev_list);
+ /* can only change netns with wiphy */
+ dev->features |= NETIF_F_NETNS_LOCAL;
+
if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
"phy80211")) {
printk(KERN_ERR "wireless: failed to add phy80211 "
@@ -705,10 +746,32 @@ static struct notifier_block cfg80211_netdev_notifier = {
.notifier_call = cfg80211_netdev_notifier_call,
};
-static int cfg80211_init(void)
+static void __net_exit cfg80211_pernet_exit(struct net *net)
+{
+ struct cfg80211_registered_device *rdev;
+
+ rtnl_lock();
+ mutex_lock(&cfg80211_mutex);
+ list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
+ if (net_eq(wiphy_net(&rdev->wiphy), net))
+ WARN_ON(cfg80211_switch_netns(rdev, &init_net));
+ }
+ mutex_unlock(&cfg80211_mutex);
+ rtnl_unlock();
+}
+
+static struct pernet_operations cfg80211_pernet_ops = {
+ .exit = cfg80211_pernet_exit,
+};
+
+static int __init cfg80211_init(void)
{
int err;
+ err = register_pernet_device(&cfg80211_pernet_ops);
+ if (err)
+ goto out_fail_pernet;
+
err = wiphy_sysfs_init();
if (err)
goto out_fail_sysfs;
@@ -736,9 +799,10 @@ out_fail_nl80211:
out_fail_notifier:
wiphy_sysfs_exit();
out_fail_sysfs:
+ unregister_pernet_device(&cfg80211_pernet_ops);
+out_fail_pernet:
return err;
}
-
subsys_initcall(cfg80211_init);
static void cfg80211_exit(void)
@@ -748,5 +812,6 @@ static void cfg80211_exit(void)
unregister_netdevice_notifier(&cfg80211_netdev_notifier);
wiphy_sysfs_exit();
regulatory_exit();
+ unregister_pernet_device(&cfg80211_pernet_ops);
}
module_exit(cfg80211_exit);
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 2ec8ddbe57de..4276b70cd975 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -170,7 +170,10 @@ struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
extern struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(int ifindex);
+cfg80211_get_dev_from_ifindex(struct net *net, int ifindex);
+
+int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
+ struct net *net);
static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev)
{
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index da450ef1fc7e..7880a9c4cdda 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -14,8 +14,10 @@
#include <linux/rtnetlink.h>
#include <linux/netlink.h>
#include <linux/etherdevice.h>
+#include <net/net_namespace.h>
#include <net/genetlink.h>
#include <net/cfg80211.h>
+#include <net/sock.h>
#include "core.h"
#include "nl80211.h"
#include "reg.h"
@@ -27,24 +29,26 @@ static struct genl_family nl80211_fam = {
.hdrsize = 0, /* no private header */
.version = 1, /* no particular meaning now */
.maxattr = NL80211_ATTR_MAX,
+ .netnsok = true,
};
/* internal helper: get rdev and dev */
-static int get_rdev_dev_by_info_ifindex(struct nlattr **attrs,
+static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
struct cfg80211_registered_device **rdev,
struct net_device **dev)
{
+ struct nlattr **attrs = info->attrs;
int ifindex;
if (!attrs[NL80211_ATTR_IFINDEX])
return -EINVAL;
ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
- *dev = dev_get_by_index(&init_net, ifindex);
+ *dev = dev_get_by_index(genl_info_net(info), ifindex);
if (!*dev)
return -ENODEV;
- *rdev = cfg80211_get_dev_from_ifindex(ifindex);
+ *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
if (IS_ERR(*rdev)) {
dev_put(*dev);
return PTR_ERR(*rdev);
@@ -133,6 +137,7 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
[NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
[NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
[NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
+ [NL80211_ATTR_PID] = { .type = NLA_U32 },
};
/* policy for the attributes */
@@ -532,6 +537,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
CMD(deauth, DEAUTHENTICATE);
CMD(disassoc, DISASSOCIATE);
CMD(join_ibss, JOIN_IBSS);
+ if (dev->wiphy.netnsok) {
+ i++;
+ NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
+ }
#undef CMD
@@ -562,6 +571,8 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
mutex_lock(&cfg80211_mutex);
list_for_each_entry(dev, &cfg80211_rdev_list, list) {
+ if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
+ continue;
if (++idx <= start)
continue;
if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
@@ -867,6 +878,8 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *
mutex_lock(&cfg80211_mutex);
list_for_each_entry(dev, &cfg80211_rdev_list, list) {
+ if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
+ continue;
if (wp_idx < wp_start) {
wp_idx++;
continue;
@@ -907,7 +920,7 @@ static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
struct net_device *netdev;
int err;
- err = get_rdev_dev_by_info_ifindex(info->attrs, &dev, &netdev);
+ err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev);
if (err)
return err;
@@ -975,7 +988,7 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -1098,26 +1111,25 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev;
- int ifindex, err;
+ int err;
struct net_device *dev;
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
- ifindex = dev->ifindex;
- dev_put(dev);
if (!rdev->ops->del_virtual_intf) {
err = -EOPNOTSUPP;
goto out;
}
- err = rdev->ops->del_virtual_intf(&rdev->wiphy, ifindex);
+ err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
out:
cfg80211_unlock_rdev(rdev);
+ dev_put(dev);
unlock_rtnl:
rtnl_unlock();
return err;
@@ -1195,7 +1207,7 @@ static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -1274,7 +1286,7 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -1333,7 +1345,7 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -1380,7 +1392,7 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -1429,7 +1441,7 @@ static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -1516,7 +1528,7 @@ static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -1726,13 +1738,13 @@ static int nl80211_dump_station(struct sk_buff *skb,
rtnl_lock();
- netdev = __dev_get_by_index(&init_net, ifidx);
+ netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
if (!netdev) {
err = -ENODEV;
goto out_rtnl;
}
- dev = cfg80211_get_dev_from_ifindex(ifidx);
+ dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
if (IS_ERR(dev)) {
err = PTR_ERR(dev);
goto out_rtnl;
@@ -1791,7 +1803,7 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
@@ -1829,14 +1841,16 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
/*
* Get vlan interface making sure it is on the right wiphy.
*/
-static int get_vlan(struct nlattr *vlanattr,
+static int get_vlan(struct genl_info *info,
struct cfg80211_registered_device *rdev,
struct net_device **vlan)
{
+ struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
*vlan = NULL;
if (vlanattr) {
- *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
+ *vlan = dev_get_by_index(genl_info_net(info),
+ nla_get_u32(vlanattr));
if (!*vlan)
return -ENODEV;
if (!(*vlan)->ieee80211_ptr)
@@ -1891,11 +1905,11 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
- err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], rdev, &params.vlan);
+ err = get_vlan(info, rdev, &params.vlan);
if (err)
goto out;
@@ -2004,11 +2018,11 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
- err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], rdev, &params.vlan);
+ err = get_vlan(info, rdev, &params.vlan);
if (err)
goto out;
@@ -2079,7 +2093,7 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
@@ -2185,13 +2199,13 @@ static int nl80211_dump_mpath(struct sk_buff *skb,
rtnl_lock();
- netdev = __dev_get_by_index(&init_net, ifidx);
+ netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
if (!netdev) {
err = -ENODEV;
goto out_rtnl;
}
- dev = cfg80211_get_dev_from_ifindex(ifidx);
+ dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
if (IS_ERR(dev)) {
err = PTR_ERR(dev);
goto out_rtnl;
@@ -2255,7 +2269,7 @@ static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
@@ -2314,7 +2328,7 @@ static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
@@ -2362,7 +2376,7 @@ static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
@@ -2404,7 +2418,7 @@ static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
@@ -2455,7 +2469,7 @@ static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
@@ -2574,7 +2588,7 @@ static int nl80211_get_mesh_params(struct sk_buff *skb,
rtnl_lock();
/* Look up our device */
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
@@ -2691,7 +2705,7 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
@@ -2947,7 +2961,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto out_rtnl;
@@ -3069,14 +3083,16 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
request->ie_len);
}
- request->ifidx = dev->ifindex;
+ request->dev = dev;
request->wiphy = &rdev->wiphy;
rdev->scan_req = request;
err = rdev->ops->scan(&rdev->wiphy, dev, request);
- if (!err)
+ if (!err) {
nl80211_send_scan_start(rdev, dev);
+ dev_hold(dev);
+ }
out_free:
if (err) {
@@ -3198,11 +3214,11 @@ static int nl80211_dump_scan(struct sk_buff *skb,
cb->args[0] = ifidx;
}
- dev = dev_get_by_index(&init_net, ifidx);
+ dev = dev_get_by_index(sock_net(skb->sk), ifidx);
if (!dev)
return -ENODEV;
- rdev = cfg80211_get_dev_from_ifindex(ifidx);
+ rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
if (IS_ERR(rdev)) {
err = PTR_ERR(rdev);
goto out_put_netdev;
@@ -3312,7 +3328,7 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -3448,7 +3464,7 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -3531,7 +3547,7 @@ static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -3593,7 +3609,7 @@ static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -3666,7 +3682,7 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -3739,7 +3755,7 @@ static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -3924,7 +3940,7 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
return err;
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -4000,7 +4016,7 @@ static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
rtnl_lock();
- err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev);
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
goto unlock_rtnl;
@@ -4024,6 +4040,47 @@ unlock_rtnl:
return err;
}
+static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev;
+ struct net *net;
+ int err;
+ u32 pid;
+
+ if (!info->attrs[NL80211_ATTR_PID])
+ return -EINVAL;
+
+ pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
+
+ rtnl_lock();
+
+ rdev = cfg80211_get_dev_from_info(info);
+ if (IS_ERR(rdev)) {
+ err = PTR_ERR(rdev);
+ goto out;
+ }
+
+ net = get_net_ns_by_pid(pid);
+ if (IS_ERR(net)) {
+ err = PTR_ERR(net);
+ goto out;
+ }
+
+ err = 0;
+
+ /* check if anything to do */
+ if (net_eq(wiphy_net(&rdev->wiphy), net))
+ goto out_put_net;
+
+ err = cfg80211_switch_netns(rdev, net);
+ out_put_net:
+ put_net(net);
+ out:
+ cfg80211_unlock_rdev(rdev);
+ rtnl_unlock();
+ return err;
+}
+
static struct genl_ops nl80211_ops[] = {
{
.cmd = NL80211_CMD_GET_WIPHY,
@@ -4257,6 +4314,12 @@ static struct genl_ops nl80211_ops[] = {
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
+ {
+ .cmd = NL80211_CMD_SET_WIPHY_NETNS,
+ .doit = nl80211_wiphy_netns,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
};
static struct genl_multicast_group nl80211_mlme_mcgrp = {
.name = "mlme",
@@ -4288,7 +4351,8 @@ void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
return;
}
- genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_config_mcgrp.id, GFP_KERNEL);
}
static int nl80211_add_scan_req(struct sk_buff *msg,
@@ -4365,7 +4429,8 @@ void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_scan_mcgrp.id, GFP_KERNEL);
}
void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
@@ -4383,7 +4448,8 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_scan_mcgrp.id, GFP_KERNEL);
}
void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
@@ -4401,7 +4467,8 @@ void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_scan_mcgrp.id, GFP_KERNEL);
}
/*
@@ -4450,7 +4517,10 @@ void nl80211_send_reg_change_event(struct regulatory_request *request)
return;
}
- genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL);
+ rtnl_lock();
+ genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
+ GFP_KERNEL);
+ rtnl_unlock();
return;
@@ -4486,7 +4556,8 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, gfp);
return;
nla_put_failure:
@@ -4553,7 +4624,8 @@ static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, gfp);
return;
nla_put_failure:
@@ -4611,7 +4683,8 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, gfp);
return;
nla_put_failure:
@@ -4651,7 +4724,8 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, gfp);
return;
nla_put_failure:
@@ -4691,7 +4765,8 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, GFP_KERNEL);
return;
nla_put_failure:
@@ -4726,7 +4801,8 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, gfp);
return;
nla_put_failure:
@@ -4766,7 +4842,8 @@ void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
return;
}
- genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, gfp);
return;
nla_put_failure:
@@ -4819,7 +4896,10 @@ void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
return;
}
- genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
+ rcu_read_lock();
+ genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
+ GFP_ATOMIC);
+ rcu_read_unlock();
return;
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index decc59fe0ee8..1b578b8cb1c9 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -32,9 +32,7 @@ void __cfg80211_scan_done(struct work_struct *wk)
mutex_lock(&rdev->mtx);
request = rdev->scan_req;
- dev = dev_get_by_index(&init_net, request->ifidx);
- if (!dev)
- goto out;
+ dev = request->dev;
/*
* This must be before sending the other events!
@@ -58,7 +56,6 @@ void __cfg80211_scan_done(struct work_struct *wk)
dev_put(dev);
- out:
cfg80211_unlock_rdev(rdev);
wiphy_to_dev(request->wiphy)->scan_req = NULL;
kfree(request);
@@ -66,17 +63,10 @@ void __cfg80211_scan_done(struct work_struct *wk)
void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted)
{
- struct net_device *dev = dev_get_by_index(&init_net, request->ifidx);
- if (WARN_ON(!dev)) {
- kfree(request);
- return;
- }
-
WARN_ON(request != wiphy_to_dev(request->wiphy)->scan_req);
request->aborted = aborted;
schedule_work(&wiphy_to_dev(request->wiphy)->scan_done_wk);
- dev_put(dev);
}
EXPORT_SYMBOL(cfg80211_scan_done);
@@ -592,7 +582,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
if (!netif_running(dev))
return -ENETDOWN;
- rdev = cfg80211_get_dev_from_ifindex(dev->ifindex);
+ rdev = cfg80211_get_dev_from_ifindex(dev_net(dev), dev->ifindex);
if (IS_ERR(rdev))
return PTR_ERR(rdev);
@@ -617,7 +607,7 @@ int cfg80211_wext_siwscan(struct net_device *dev,
}
creq->wiphy = wiphy;
- creq->ifidx = dev->ifindex;
+ creq->dev = dev;
creq->ssids = (void *)(creq + 1);
creq->channels = (void *)(creq->ssids + 1);
creq->n_channels = n_channels;
@@ -654,8 +644,10 @@ int cfg80211_wext_siwscan(struct net_device *dev,
if (err) {
rdev->scan_req = NULL;
kfree(creq);
- } else
+ } else {
nl80211_send_scan_start(rdev, dev);
+ dev_hold(dev);
+ }
out:
cfg80211_unlock_rdev(rdev);
return err;
@@ -948,7 +940,7 @@ int cfg80211_wext_giwscan(struct net_device *dev,
if (!netif_running(dev))
return -ENETDOWN;
- rdev = cfg80211_get_dev_from_ifindex(dev->ifindex);
+ rdev = cfg80211_get_dev_from_ifindex(dev_net(dev), dev->ifindex);
if (IS_ERR(rdev))
return PTR_ERR(rdev);
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 82de2d9795f4..a19741097989 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -86,7 +86,7 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
wdev->conn->params.ssid_len);
request->ssids[0].ssid_len = wdev->conn->params.ssid_len;
- request->ifidx = wdev->netdev->ifindex;
+ request->dev = wdev->netdev;
request->wiphy = &rdev->wiphy;
rdev->scan_req = request;
@@ -95,6 +95,7 @@ static int cfg80211_conn_scan(struct wireless_dev *wdev)
if (!err) {
wdev->conn->state = CFG80211_CONN_SCANNING;
nl80211_send_scan_start(rdev, wdev->netdev);
+ dev_hold(wdev->netdev);
} else {
rdev->scan_req = NULL;
kfree(request);
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