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Vendor patch: fix the reporting of ifOperStatus. We now consider an

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interface up when it is running AND the link is not down (that is, it is
up or unknown). If the interface is running but the link is down, we return
state 'dormant', because we're waiting for an external event. Otherwise
the interface is 'down'.

Submitted by:	csjp
Reviewed by:	glebius
This commit is contained in:
Hartmut Brandt 2005-11-02 14:05:49 +00:00
parent 4c0a7af955
commit 361b40a30d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/bsnmp/dist/; revision=151970
1 changed files with 17 additions and 3 deletions
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20
contrib/bsnmp/snmp_mibII/mibII_interfaces.c
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@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Begemot: bsnmp/snmp_mibII/mibII_interfaces.c,v 1.15 2005/05/23 09:03:39 brandt_h Exp $
* $Begemot: bsnmp/snmp_mibII/mibII_interfaces.c,v 1.16 2005/11/02 12:07:40 brandt_h Exp $
*
* Interfaces group.
*/
@ -280,8 +280,22 @@ op_ifentry(struct snmp_context *ctx, struct snmp_value *value,
break;
case LEAF_ifOperStatus:
value->v.integer =
(ifp->mib.ifmd_flags & IFF_RUNNING) ? 1 : 2;
/*
* According to RFC 2863 the state should be Up if the
* interface is ready to transmit packets. We takes this to
* mean that the interface should be running and should have
* a carrier. If it is running and has no carrier we interpret
* this as 'waiting for an external event' (plugging in the
* cable) and hence return 'dormant'.
*/
if (ifp->mib.ifmd_flags & IFF_RUNNING) {
if (ifp->mib.ifmd_data.ifi_link_state ==
LINK_STATE_DOWN)
value->v.integer = 5; /* state dormant */
else
value->v.integer = 1; /* state up */
} else
value->v.integer = 2; /* state down */
break;
case LEAF_ifLastChange: