ieee802154: add del interface command
This patch adds support for deleting a wpan interface via nl802154. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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@ -43,6 +43,8 @@ struct cfg802154_ops {
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const char *name,
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enum nl802154_iftype type,
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__le64 extended_addr);
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int (*del_virtual_intf)(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev);
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int (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
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int (*set_pan_id)(struct wpan_phy *wpan_phy,
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struct wpan_dev *wpan_dev, u16 pan_id);
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@ -583,6 +583,26 @@ static int nl802154_new_interface(struct sk_buff *skb, struct genl_info *info)
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type, extended_addr);
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}
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static int nl802154_del_interface(struct sk_buff *skb, struct genl_info *info)
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{
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struct cfg802154_registered_device *rdev = info->user_ptr[0];
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struct wpan_dev *wpan_dev = info->user_ptr[1];
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if (!rdev->ops->del_virtual_intf)
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return -EOPNOTSUPP;
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/* If we remove a wpan device without a netdev then clear
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* user_ptr[1] so that nl802154_post_doit won't dereference it
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* to check if it needs to do dev_put(). Otherwise it crashes
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* since the wpan_dev has been freed, unlike with a netdev where
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* we need the dev_put() for the netdev to really be freed.
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*/
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if (!wpan_dev->netdev)
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info->user_ptr[1] = NULL;
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return rdev_del_virtual_intf(rdev, wpan_dev);
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}
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static int nl802154_set_channel(struct sk_buff *skb, struct genl_info *info)
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{
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struct cfg802154_registered_device *rdev = info->user_ptr[0];
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@ -858,6 +878,14 @@ static const struct genl_ops nl802154_ops[] = {
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.internal_flags = NL802154_FLAG_NEED_WPAN_PHY |
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NL802154_FLAG_NEED_RTNL,
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},
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{
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.cmd = NL802154_CMD_DEL_INTERFACE,
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.doit = nl802154_del_interface,
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.policy = nl802154_policy,
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.flags = GENL_ADMIN_PERM,
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.internal_flags = NL802154_FLAG_NEED_WPAN_DEV |
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NL802154_FLAG_NEED_RTNL,
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},
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{
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.cmd = NL802154_CMD_SET_CHANNEL,
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.doit = nl802154_set_channel,
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@ -28,6 +28,13 @@ rdev_add_virtual_intf(struct cfg802154_registered_device *rdev, char *name,
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extended_addr);
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}
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static inline int
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rdev_del_virtual_intf(struct cfg802154_registered_device *rdev,
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struct wpan_dev *wpan_dev)
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{
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return rdev->ops->del_virtual_intf(&rdev->wpan_phy, wpan_dev);
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}
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static inline int
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rdev_set_channel(struct cfg802154_registered_device *rdev, u8 page, u8 channel)
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{
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@ -57,6 +57,14 @@ ieee802154_add_iface(struct wpan_phy *phy, const char *name,
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return 0;
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}
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static int
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ieee802154_del_iface(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev)
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{
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ieee802154_if_remove(IEEE802154_WPAN_DEV_TO_SUB_IF(wpan_dev));
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return 0;
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}
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static int
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ieee802154_set_channel(struct wpan_phy *wpan_phy, u8 page, u8 channel)
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{
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@ -191,6 +199,7 @@ const struct cfg802154_ops mac802154_config_ops = {
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.add_virtual_intf_deprecated = ieee802154_add_iface_deprecated,
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.del_virtual_intf_deprecated = ieee802154_del_iface_deprecated,
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.add_virtual_intf = ieee802154_add_iface,
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.del_virtual_intf = ieee802154_del_iface,
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.set_channel = ieee802154_set_channel,
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.set_pan_id = ieee802154_set_pan_id,
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.set_short_addr = ieee802154_set_short_addr,
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@ -115,6 +115,12 @@ IEEE802154_DEV_TO_SUB_IF(const struct net_device *dev)
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return netdev_priv(dev);
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}
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static inline struct ieee802154_sub_if_data *
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IEEE802154_WPAN_DEV_TO_SUB_IF(struct wpan_dev *wpan_dev)
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{
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return container_of(wpan_dev, struct ieee802154_sub_if_data, wpan_dev);
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}
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static inline bool
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ieee802154_sdata_running(struct ieee802154_sub_if_data *sdata)
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{
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