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Index: sys/net/if.c
===================================================================
--- sys/net/if.c
+++ sys/net/if.c
@@ -59,6 +59,7 @@
#include <sys/domain.h>
#include <sys/jail.h>
#include <sys/priv.h>
+#include <sys/eventhandler.h>
#include <machine/stdarg.h>
#include <vm/uma.h>
@@ -2218,6 +2219,7 @@
if_down(struct ifnet *ifp)
{
+ EVENTHANDLER_INVOKE(ifnet_event, ifp, IFNET_EVENT_DOWN);
if_unroute(ifp, IFF_UP, AF_UNSPEC);
}
@@ -2308,6 +2310,8 @@
char new_name[IFNAMSIZ];
struct ifaddr *ifa;
struct sockaddr_dl *sdl;
+ bool if_up_done;
+
ifr = (struct ifreq *)data;
switch (cmd) {
@@ -2413,6 +2417,8 @@
break;
case SIOCSIFFLAGS:
+ if_up_done = false;
+
error = priv_check(td, PRIV_NET_SETIFFLAGS);
if (error)
return (error);
@@ -2428,6 +2434,7 @@
} else if (new_flags & IFF_UP &&
(ifp->if_flags & IFF_UP) == 0) {
if_up(ifp);
+ if_up_done = true;
}
/* See if permanently promiscuous mode bit is about to flip */
if ((ifp->if_flags ^ new_flags) & IFF_PPROMISC) {
@@ -2446,6 +2453,10 @@
if (ifp->if_ioctl) {
(void) (*ifp->if_ioctl)(ifp, cmd, data);
}
+
+ if (if_up_done)
+ EVENTHANDLER_INVOKE(ifnet_event, ifp, IFNET_EVENT_UP);
+
getmicrotime(&ifp->if_lastchange);
break;
Index: sys/sys/eventhandler.h
===================================================================
--- sys/sys/eventhandler.h
+++ sys/sys/eventhandler.h
@@ -277,4 +277,11 @@
struct ata_params *, int *);
EVENTHANDLER_DECLARE(ada_probe_veto, ada_probe_veto_fn);
+/* ifup/ifdown events */
+#define IFNET_EVENT_UP 0
+#define IFNET_EVENT_DOWN 1
+struct ifnet;
+typedef void (*ifnet_event_fn)(void *, struct ifnet *ifp, int event);
+EVENTHANDLER_DECLARE(ifnet_event, ifnet_event_fn);
+
#endif /* _SYS_EVENTHANDLER_H_ */

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