http://defect.opensolaris.org/bz/show_bug.cgi?id=9919
Summary: need an effective WiFi connection self-test
Classification: Development
Product: nwam
Version: unspecified
Platform: ANY/Generic
OS/Version: All
Status: ACCEPTED
Status Whiteboard: nwam1-build:2009-07-07
Severity: enhancement
Priority: P2
Component: ON daemon
AssignedTo: nwam-dev at opensolaris.org
ReportedBy: alan.maguire at sun.com
QAContact: nwam-dev at opensolaris.org
Secure WiFi connections appear to succeed even if the key is not correct. As a
consequence, no traffic flows, but things appear to be okay. It's not possible
to use the (lack of) DHCP server response as an indicator of (failure of)
connectivity, since the DHCP server may well be down/slow. We had a scheme of
using a libdlpi ether frame sent with matching source/destination ether address
on a loopback test SAP, but it turns out some APs filter out such frames, so
it's not a totally reliable test.
The phase 0.5 GUI counts the ippackets kstat for DHCP requests to determine
connectivity, perhaps something along those lines could be adapted (pasting
code from Darren here):
if (self->prv->kstat_ctl == NULL) {
if ((self->prv->kstat_ctl = kstat_open ()) == NULL) {
g_warning("Cannot open /dev/kstat: %s", strerror (errno));
return( rx_packets );
}
}
if (kstat_chain_update (self->prv->kstat_ctl) < 0) {
int e = errno;
kstat_close (self->prv->kstat_ctl);
self->prv->kstat_ctl = NULL;
g_warning("Cannot update kstats: %s", strerror (e));
return( rx_packets );
}
device_name = nwamui_ncu_get_device_name( ncu );
if ((ksp = kstat_lookup (self->prv->kstat_ctl, NULL, -1, device_name )) ==
NULL) {
kstat_close (self->prv->kstat_ctl);
self->prv->kstat_ctl = NULL;
g_warning("Cannot find information on network interface '%s'",
device_name);
g_free(device_name);
return( rx_packets );
}
g_free(device_name);
if (kstat_read (self->prv->kstat_ctl, ksp, NULL) < 0) {
kstat_close (self->prv->kstat_ctl);
self->prv->kstat_ctl = NULL;
g_warning("Cannot read kstat");
return( rx_packets );
}
if ((kn = kstat_data_lookup (ksp, "ipackets")) != NULL) {
rx_packets = kn->value.ui32;
}
return( rx_packets );
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