def getBackhaulStatus():
"""Returns the status of the backhaul interface"""
nopeer = {"snr":0,"signal":0,"noise":0}
ifaces = getInterfaces(returnOne=BACKHAUL_IFNAME)
if len(ifaces) != 1:
return ("critical", "Backhaul interface not found", nopeer)
iface = ifaces[0]
wiface = iwtools.get_interface(BACKHAUL_IFNAME)
if not iface["up"]:
ifaces = debian_interfaces()
apname = ifaces[BACKHAUL_IFNAME]["wpa-ssid"].replace(ESSID_PREFIX, "")
return ("critical", "%s - Not associated" % apname, nopeer)
essid = wiface.get_essid()
if not essid.startswith(ESSID_PREFIX) and essid != "Any":
log_warn("Associated to invalid AP: %s" % essid)
return ("warning", "Not associated to correct Access Point", nopeer)
parts = essid.split("-")
stats = wiface.get_stats()
if getActiveUsername() != getISPUsername():
return ("warning", "Connected as '%s' not '%s'" % \
(getActiveUsername(), getISPUsername()), stats)
return ("ok", "%s" % "-".join(parts[1:]), stats)
def checkUpstream():
ifaces = debian_interfaces()
diface = ifaces[BACKHAUL_IFNAME]
if diface["wpa-ssid"] == "default":
# Not configured, scan for valid APs
try:
log_command("/sbin/ip link set up dev %s 2>&1" % BACKHAUL_IFNAME)
wiface = iwtools.get_interface(BACKHAUL_IFNAME)
scanres = wiface.scanall()
except:
log_error("Could not complete scan on backhaul interface (%s)!" % \
BACKHAUL_IFNAME, sys.exc_info())
scanres = []
# Exclude networks that don't match our ESSID
aps = [ n for n in scanres if n.essid.startswith(ESSID_PREFIX)]
# Pick the one with the highest SNR
best = None
for ap in aps:
if best is None or ap.qual["snr"] > best.qual["snr"]:
best = ap
# Select it
if best is not None:
log_info("Selecting Access Point '%s' based on SNR strength" % \
best.essid)
configureBhaulInterface(best.essid)
# Hope for the best
return
# Check that the backhaul is up
doUp = False
ifaces = getInterfaces(returnOne=BACKHAUL_IFNAME)
if len(ifaces) != 1:
ensureBackhaulUp()
return
iface = ifaces[0]
if not iface["up"]:
ensureBackhaulUp()
return
# Check credentials are up to date
if diface["wpa-identity"] != getActiveUsername() or \
diface["wpa-password"] != getActivePassword():
# Take down so that we re-authenticate
log_info("Triggering reassociation to update credentials")
log_command("/sbin/ifdown %s 2>&1" % BACKHAUL_IFNAME)
ensureBackhaulUp()
return
# Check IP layer is OK
dg = getGatewayIP()
if dg == "":
log_info("Triggering reassociation to acquire gateway")
log_command("/sbin/ifdown %s 2>&1" % BACKHAUL_IFNAME)
ensureBackhaulUp()
return
def getBackhaulHTML(submitButtons=True, inputPrefix=""):
othernets = {}
output = ""
try:
ensureBackhaulUp()
wiface = iwtools.get_interface(BACKHAUL_IFNAME)
scanres = wiface.scanall()
except:
log_error("Could not complete scan on backhaul interface (%s)!" % \
BACKHAUL_IFNAME, sys.exc_info())
scanres = []
n=0
for network in scanres:
if not network.essid.startswith(ESSID_PREFIX):
# Skip non matching networks
othernets[network.essid] = (network.channel, network.qual)
continue
# Get the AP name from the ESSID
parts = network.essid.split("-")
if len(parts) < 2:
othernets[network.essid] = (network.channel, network.qual)
continue
name = "-".join(parts[1:])
# Write the record
output += """<h3>%s</h3>
<div id="ssmeter-%s" class="ssmeter">%s</div>
<div style="clear: all;"> </div><br />
""" % (name, name, getSSMeter(network.qual))
if submitButtons:
output += """<form action="/admin/setup_backhaul" method="post">
<input type="hidden" name="essid" value="%s" />
<input type="submit" value="Connect to %s >>" />
</form><br />""" % (network.essid, name)
else:
output += """Connect to <b>'%s'</b> <input type="radio" """ \
"""id="%sessid" name="%sessid" value="%s" /><br />""" % \
(name, inputPrefix, inputPrefix, network.essid)
output += "<br />"
n+=1
if n==0:
output += "<br /><b>No access points found to connect to!</b>" \
"<br /><br />"
return (output, othernets)
