diff options
Diffstat (limited to 'include/net/rtnetlink.h')
| -rw-r--r-- | include/net/rtnetlink.h | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h index bc0069a8b6ea..ec65a8cebb99 100644 --- a/include/net/rtnetlink.h +++ b/include/net/rtnetlink.h @@ -70,6 +70,40 @@ static inline int rtnl_msg_family(const struct nlmsghdr *nlh) } /** + * struct rtnl_newlink_params - parameters of rtnl_link_ops::newlink() + * + * @src_net: Source netns of rtnetlink socket + * @link_net: Link netns by IFLA_LINK_NETNSID, NULL if not specified + * @peer_net: Peer netns + * @tb: IFLA_* attributes + * @data: IFLA_INFO_DATA attributes + */ +struct rtnl_newlink_params { + struct net *src_net; + struct net *link_net; + struct net *peer_net; + struct nlattr **tb; + struct nlattr **data; +}; + +/* Get effective link netns from newlink params. Generally, this is link_net + * and falls back to src_net. But for compatibility, a driver may * choose to + * use dev_net(dev) instead. + */ +static inline struct net *rtnl_newlink_link_net(struct rtnl_newlink_params *p) +{ + return p->link_net ? : p->src_net; +} + +/* Get peer netns from newlink params. Fallback to link netns if peer netns is + * not specified explicitly. + */ +static inline struct net *rtnl_newlink_peer_net(struct rtnl_newlink_params *p) +{ + return p->peer_net ? : rtnl_newlink_link_net(p); +} + +/** * struct rtnl_link_ops - rtnetlink link operations * * @list: Used internally, protected by link_ops_mutex and SRCU @@ -125,10 +159,8 @@ struct rtnl_link_ops { struct nlattr *data[], struct netlink_ext_ack *extack); - int (*newlink)(struct net *src_net, - struct net_device *dev, - struct nlattr *tb[], - struct nlattr *data[], + int (*newlink)(struct net_device *dev, + struct rtnl_newlink_params *params, struct netlink_ext_ack *extack); int (*changelink)(struct net_device *dev, struct nlattr *tb[], |