/*
- * Copyright (c) 2009 Nicira Networks.
+ * Copyright (c) 2009, 2015 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* limitations under the License.
*/
-#ifndef RTNETLINK_H
-#define RTNETLINK_H 1
+#ifndef RTNETLINK_LINK_H
+#define RTNETLINK_LINK_H 1
-/* These functions are Linux specific, so they should be used directly only by
- * Linux-specific code. */
+#include <stdbool.h>
+#include <stdint.h>
+#include <linux/if_ether.h>
-#include "list.h"
+#include "openvswitch/types.h"
-struct rtnetlink;
-struct nlattr;
struct ofpbuf;
+struct nln_notifier;
-/* 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);
+/* These functions are Linux specific, so they should be used directly only by
+ * Linux-specific code. */
-/* Function called to parse incoming rtnetlink notifications. The 'buf'
- * message should be parsed into 'change' as specified in rtnetlink_create().
+/* A digested version of an rtnetlink_link message sent down by the kernel to
+ * indicate that a network device's status (link or address) has been changed.
*/
-typedef bool rtnetlink_parse_func(struct ofpbuf *buf, void *change);
+struct rtnetlink_change {
+ /* Copied from struct nlmsghdr. */
+ int nlmsg_type; /* e.g. RTM_NEWLINK, RTM_DELLINK. */
+
+ /* Common attributes. */
+ int if_index; /* Index of network device. */
+ const char *ifname; /* Name of network device. */
-struct rtnetlink_notifier {
- struct list node;
- rtnetlink_notify_func *cb;
- void *aux;
+ /* Network device link status. */
+ int master_ifindex; /* Ifindex of datapath master (0 if none). */
+ int mtu; /* Current MTU. */
+ struct eth_addr mac;
+ unsigned int ifi_flags; /* Flags of network device. */
+
+ /* Network device address status. */
+ /* xxx To be added when needed. */
};
-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 *,
- struct rtnetlink_notifier *);
-void rtnetlink_notifier_run(struct rtnetlink *);
-void rtnetlink_notifier_wait(struct rtnetlink *);
+/* 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
+ * rtnetlink_notifier_register(). */
+typedef
+void rtnetlink_notify_func(const struct rtnetlink_change *change,
+ void *aux);
+
+bool rtnetlink_type_is_rtnlgrp_link(uint16_t type);
+bool rtnetlink_type_is_rtnlgrp_addr(uint16_t type);
+bool rtnetlink_parse(struct ofpbuf *buf, struct rtnetlink_change *change);
+struct nln_notifier *
+rtnetlink_notifier_create(rtnetlink_notify_func *, void *aux);
+void rtnetlink_notifier_destroy(struct nln_notifier *);
+void rtnetlink_run(void);
+void rtnetlink_wait(void);
#endif /* rtnetlink.h */