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inet: Treat LINK_STATE_UNKNOWN as LINK_STATE_UP when changing

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It's something we have always done.
it's really rare for anything to transition to UNKNOWN from either
UP or DOWN, but technically it is possible.
This commit is contained in:
roy 2020-09-29 19:33:36 +00:00
parent 67eca6e99d
commit 76faeff505
2 changed files with 18 additions and 16 deletions
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17
sys/netinet/in.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: in.c,v 1.240 2020/09/11 15:22:12 roy Exp $ */
/* $NetBSD: in.c,v 1.241 2020/09/29 19:33:36 roy Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@ -91,7 +91,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: in.c,v 1.240 2020/09/11 15:22:12 roy Exp $");
__KERNEL_RCSID(0, "$NetBSD: in.c,v 1.241 2020/09/29 19:33:36 roy Exp $");
#include "arp.h"
@ -1579,14 +1579,15 @@ void
in_if_link_state_change(struct ifnet *ifp, int link_state)
{
switch (link_state) {
case LINK_STATE_DOWN:
/*
* Treat LINK_STATE_UNKNOWN as UP.
* LINK_STATE_UNKNOWN transitions to LINK_STATE_DOWN when
* if_link_state_change() transitions to LINK_STATE_UP.
*/
if (link_state == LINK_STATE_DOWN)
in_if_link_down(ifp);
break;
case LINK_STATE_UP:
else
in_if_link_up(ifp);
break;
}
}
/*

17
sys/netinet6/in6.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: in6.c,v 1.281 2020/06/16 17:12:18 maxv Exp $ */
/* $NetBSD: in6.c,v 1.282 2020/09/29 19:33:36 roy Exp $ */
/* $KAME: in6.c,v 1.198 2001/07/18 09:12:38 itojun Exp $ */
/*
@ -62,7 +62,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: in6.c,v 1.281 2020/06/16 17:12:18 maxv Exp $");
__KERNEL_RCSID(0, "$NetBSD: in6.c,v 1.282 2020/09/29 19:33:36 roy Exp $");
#ifdef _KERNEL_OPT
#include "opt_inet.h"
@ -2250,14 +2250,15 @@ void
in6_if_link_state_change(struct ifnet *ifp, int link_state)
{
switch (link_state) {
case LINK_STATE_DOWN:
/*
* Treat LINK_STATE_UNKNOWN as UP.
* LINK_STATE_UNKNOWN transitions to LINK_STATE_DOWN when
* if_link_state_change() transitions to LINK_STATE_UP.
*/
if (link_state == LINK_STATE_DOWN)
in6_if_link_down(ifp);
break;
case LINK_STATE_UP:
else
in6_if_link_up(ifp);
break;
}
}
int