#include "list.h"
-/* A digested version of an rtnetlink message sent down by the kernel to
- * indicate that a network device has been created or destroyed or changed. */
-struct rtnetlink_change {
- /* Copied from struct nlmsghdr. */
- int nlmsg_type; /* e.g. RTM_NEWLINK, RTM_DELLINK. */
-
- /* Copied from struct ifinfomsg. */
- int ifi_index; /* Index of network device. */
-
- /* Extracted from Netlink attributes. */
- const char *ifname; /* Name of network device. */
- int master_ifindex; /* Ifindex of datapath master (0 if none). */
-};
+struct rtnetlink;
+struct nlattr;
+struct ofpbuf;
+
+/* Function called to report rtnetlink notifications. 'change' describes the
+ * specific change filled out by an rtnetlink_parse_func. It may be null if
+ * the buffer of change information overflowed, in which case the function must
+ * assume that everything may have changed. 'aux' is as specified in
+ * rtnetlink_notifier_register().
+ */
+typedef void rtnetlink_notify_func(const void *change, void *aux);
-/* Function called to report that a netdev has changed. 'change' describes the
- * specific change. It may be null if the buffer of change information
- * overflowed, in which case the function must assume that every device may
- * have changed. 'aux' is as specified in the call to
- * lxnetdev_notifier_register(). */
-typedef void rtnetlink_notify_func(const struct rtnetlink_change *, void *aux);
+/* Function called to parse incoming rtnetlink notifications. The 'buf'
+ * message should be parsed into 'change' as specified in rtnetlink_create().
+ */
+typedef bool rtnetlink_parse_func(struct ofpbuf *buf, void *change);
struct rtnetlink_notifier {
struct list node;
void *aux;
};
-int rtnetlink_notifier_register(struct rtnetlink_notifier *,
+struct rtnetlink *rtnetlink_create(int multicast_group,
+ rtnetlink_parse_func *,
+ void *change);
+void rtnetlink_destroy(struct rtnetlink *rtn);
+int rtnetlink_notifier_register(struct rtnetlink *,
+ struct rtnetlink_notifier *,
rtnetlink_notify_func *, void *aux);
-void rtnetlink_notifier_unregister(struct rtnetlink_notifier *);
-void rtnetlink_notifier_run(void);
-void rtnetlink_notifier_wait(void);
-
+void rtnetlink_notifier_unregister(struct rtnetlink *,
+ struct rtnetlink_notifier *);
+void rtnetlink_notifier_run(struct rtnetlink *);
+void rtnetlink_notifier_wait(struct rtnetlink *);
#endif /* rtnetlink.h */