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net: Add a callback to ifnet to notify of link state changes

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This commit is contained in:
roy 2020-09-26 18:35:12 +00:00
parent c9f4e317e7
commit 13c88b88b0
2 changed files with 9 additions and 3 deletions
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9
sys/net/if.c
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@ -1,4 +1,4 @@
/* $NetBSD: if.c,v 1.480 2020/09/26 11:57:05 roy Exp $ */
/* $NetBSD: if.c,v 1.481 2020/09/26 18:35:12 roy Exp $ */
/*-
* Copyright (c) 1999, 2000, 2001, 2008 The NetBSD Foundation, Inc.
@ -90,7 +90,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.480 2020/09/26 11:57:05 roy Exp $");
__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.481 2020/09/26 18:35:12 roy Exp $");
#if defined(_KERNEL_OPT)
#include "opt_inet.h"
@ -1212,6 +1212,8 @@ if_deactivate(struct ifnet *ifp)
ifp->if_slowtimo = if_nullslowtimo;
ifp->if_drain = if_nulldrain;
ifp->if_link_state_changed = NULL;
/* No more packets may be enqueued. */
ifp->if_snd.ifq_maxlen = 0;
@ -2415,6 +2417,9 @@ if_link_state_change_process(struct ifnet *ifp, int link_state)
carp_carpdev_state(ifp);
#endif
if (ifp->if_link_state_changed != NULL)
ifp->if_link_state_changed(ifp, link_state);
DOMAIN_FOREACH(dp) {
if (dp->dom_if_link_state_change != NULL)
dp->dom_if_link_state_change(ifp, link_state);

3
sys/net/if.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: if.h,v 1.286 2020/09/26 11:57:05 roy Exp $ */
/* $NetBSD: if.h,v 1.287 2020/09/26 18:35:12 roy Exp $ */
/*-
* Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc.
@ -419,6 +419,7 @@ typedef struct ifnet {
uint16_t if_link_queue; /* q: masked link state change queue */
/* q: is link state work scheduled? */
bool if_link_scheduled;
void (*if_link_state_changed)(struct ifnet *, int);
struct pslist_entry
if_pslist_entry;/* i: */
struct psref_target