def wireless(self, interface=None):
# Store the name of the interface in question in a class attribute for
# use later.
self.interface = interface
# Set up variables to hold the ESSID and channel of the wireless
# uplink.
channel = 0
essid = ''
channel, essid, warning = _utils.check_for_configured_interface(
self.netconfdb, interface, channel, essid)
# The forms in the HTML template do everything here, as well. This
# method only accepts input for use later.
try:
page = self.templatelookup.get_template("/gateways/wireless.html")
return page.render(
title="Configure wireless uplink.",
purpose_of_page="Set wireless uplink parameters.",
warning=warning,
interface=interface,
channel=channel,
essid=essid)
except:
_utils.output_error_data()
def wireless(self, interface=None):
logging.debug("Entered NetworkConfiguration.wireless().")
# Store the name of the network interface chosen by the user in the
# object's attribute set and then generate the name of the client
# interface.
self.mesh_interface = interface
self.client_interface = interface + ':1'
# Default settings for /network/wireless.html page.
channel = 3
essid = 'Byzantium'
# This is a hidden class attribute setting, used for sanity checking
# later in the configuration process.
self.frequency = frequencies[channel - 1]
channel, essid, warning = _utils.check_for_configured_interface(
self.netconfdb, interface, channel, essid)
# The forms in the HTML template do everything here, as well. This
# method only accepts input for use later.
try:
page = self.templatelookup.get_template("/network/wireless.html")
return page.render(
title="Configure wireless for Byzantium node.",
purpose_of_page="Set wireless network parameters.",
warning=warning,
interface=self.mesh_interface,
channel=channel,
essid=essid)
except:
_utils.output_error_data()
def tcpip(self, interface=None, essid=None, channel=None):
logging.debug("Entered Gateways.tcpip().")
# Define this variable in case wireless configuration information is
# passed into this method.
iwconfigs = ''
# Test to see if the interface argument has been passed. If it hasn't
# then this method is being called from Gateways.wireless(), so
# populate it from the class attribute variable.
if interface is None:
interface = self.interface
# If an ESSID and channel were passed to this method, store them in
# class attributes.
if essid:
self.essid = essid
iwconfigs = '<p>Wireless network configuration:</p>\n'
iwconfigs = iwconfigs + '<p>ESSID: ' + essid + '</p>\n'
if channel:
self.channel = channel
iwconfigs = iwconfigs + '<p>Channel: ' + channel + '</p>\n'
# Run the "Are you sure?" page through the template interpeter.
try:
page = self.templatelookup.get_template("/gateways/confirm.html")
return page.render(title="Enable gateway?",
purpose_of_page="Confirm gateway mode.",
interface=interface,
iwconfigs=iwconfigs)
except:
_utils.output_error_data()
def tcpip(self, interface=None, essid=None, channel=None):
logging.debug("Entered Gateways.tcpip().")
# Define this variable in case wireless configuration information is
# passed into this method.
iwconfigs = ''
# Test to see if the interface argument has been passed. If it hasn't
# then this method is being called from Gateways.wireless(), so
# populate it from the class attribute variable.
if interface is None:
interface = self.interface
# If an ESSID and channel were passed to this method, store them in
# class attributes.
if essid:
self.essid = essid
iwconfigs = '<p>Wireless network configuration:</p>\n'
iwconfigs = iwconfigs + '<p>ESSID: ' + essid + '</p>\n'
if channel:
self.channel = channel
iwconfigs = iwconfigs + '<p>Channel: ' + channel + '</p>\n'
# Run the "Are you sure?" page through the template interpeter.
try:
page = self.templatelookup.get_template("/gateways/confirm.html")
return page.render(title = "Enable gateway?",
purpose_of_page = "Confirm gateway mode.",
interface = interface, iwconfigs = iwconfigs)
except:
_utils.output_error_data()
def wireless(self, interface=None):
logging.debug("Entered NetworkConfiguration.wireless().")
# Store the name of the network interface chosen by the user in the
# object's attribute set and then generate the name of the client
# interface.
self.mesh_interface = interface
self.client_interface = interface + ':1'
# Default settings for /network/wireless.html page.
channel = 3
essid = 'Byzantium'
# This is a hidden class attribute setting, used for sanity checking
# later in the configuration process.
self.frequency = frequencies[channel - 1]
channel, essid, warning = _utils.check_for_configured_interface(self.netconfdb, interface, channel, essid)
# The forms in the HTML template do everything here, as well. This
# method only accepts input for use later.
try:
page = self.templatelookup.get_template("/network/wireless.html")
return page.render(title = "Configure wireless for Byzantium node.",
purpose_of_page = "Set wireless network parameters.",
warning = warning, interface = self.mesh_interface,
channel = channel, essid = essid)
except:
_utils.output_error_data()
def enable(self):
# Set up the error and successful output messages.
error = ''
output = ''
# Set up a default set of command line options for babeld. Some of
# these are redundant but are present in case an older version of
# babeld is used on the node. See the following file to see why:
# http://www.pps.jussieu.fr/~jch/software/babel/CHANGES.text
common_babeld_opts = [
'-m', 'ff02:0:0:0:0:0:1:6', '-p', '6696', '-D', '-g', '33123',
'-c', '/etc/babeld.conf'
]
# Create a set of unique command line options for babeld. Right now,
# this variable is empty but it might be used in the future. Maybe
# it'll be populated from a config file or something.
unique_babeld_opts = []
# Set up a list of mesh interfaces for which babeld is already running.
interfaces = []
query = "SELECT interface, enabled, protocol FROM meshes WHERE enabled='yes' AND protocol='babel';"
connection, cursor = _utils.execute_query(self.meshconfdb, query)
results = cursor.fetchall()
for i in results:
logging.debug("Adding interface: %s", i[0])
interfaces.append(i[0])
# By definition, if we're in this method the new interface hasn't been
# added yet.
interfaces.append(self.interface)
self.update_babeld(common_babeld_opts, unique_babeld_opts, interfaces)
# Get the PID of babeld, then test to see if that pid exists and
# corresponds to a running babeld process. If there is no match,
# babeld isn't running.
pid = self.pid_check()
if pid:
error, output = self._pid_helper(pid,
error,
output,
cursor,
connection,
commit=True)
cursor.close()
# Render the HTML page.
try:
page = self.templatelookup.get_template("/mesh/enabled.html")
return page.render(title="Byzantium Node Mesh Configuration",
purpose_of_page="Mesh Interface Enabled",
protocol=self.protocol,
interface=self.interface,
error=error,
output=output)
except:
_utils.output_error_data()
def activate(self, interface=None):
logging.debug("Entered Gateways.activate().")
# Test to see if wireless configuration attributes are set, and if they
# are, use iwconfig to set up the interface.
if self.essid:
command = ['/sbin/iwconfig', interface, 'essid', self.essid]
logging.debug("Setting ESSID to %s.", self.essid)
if self.test:
logging.debug("Command to set ESSID:\n%s", ' '.join(command))
else:
subprocess.Popen(command)
if self.channel:
command = ['/sbin/iwconfig', interface, 'channel', self.channel]
logging.debug("Setting channel %s.", self.channel)
if self.test:
logging.debug("Command to set channel:\n%s", ' '.join(command))
else:
subprocess.Popen(command)
# If we have to configure layers 1 and 2, then it's a safe bet that we
# should use DHCP to set up layer 3. This is wrapped in a shell script
# because of a timing conflict between the time dhcpcd starts, the
# time dhcpcd gets IP configuration information (or not) and when
# avahi-daemon is bounced.
command = ['/usr/local/sbin/gateway.sh', interface]
logging.debug("Preparing to configure interface %s.", interface)
if self.test:
logging.debug("Pretending to run gateway.sh on interface %s.",
interface)
logging.debug("Command that would be run:\n%s", ' '.join(command))
else:
subprocess.Popen(command)
# See what value was returned by the script.
# Set up a list of mesh interfaces for which babeld is already running.
#
# NOTE: the interfaces variable doesn't seem to ever get used anywhere :/
#
interfaces = self._get_mesh_interfaces(interface)
# Update the network configuration database to reflect the fact that
# the interface is now a gateway. Search the table of Ethernet
# interfaces first.
self._update_netconfdb(interface)
# Display the confirmation of the operation to the user.
try:
page = self.templatelookup.get_template("/gateways/done.html")
return page.render(title="Enable gateway?",
purpose_of_page="Confirm gateway mode.",
interface=interface)
except:
_utils.output_error_data()
def activate(self, interface=None):
logging.debug("Entered Gateways.activate().")
# Test to see if wireless configuration attributes are set, and if they
# are, use iwconfig to set up the interface.
if self.essid:
command = ['/sbin/iwconfig', interface, 'essid', self.essid]
logging.debug("Setting ESSID to %s.", self.essid)
if self.test:
logging.debug("Command to set ESSID:\n%s", ' '.join(command))
else:
subprocess.Popen(command)
if self.channel:
command = ['/sbin/iwconfig', interface, 'channel', self.channel]
logging.debug("Setting channel %s.", self.channel)
if self.test:
logging.debug("Command to set channel:\n%s", ' '.join(command))
else:
subprocess.Popen(command)
# If we have to configure layers 1 and 2, then it's a safe bet that we
# should use DHCP to set up layer 3. This is wrapped in a shell script
# because of a timing conflict between the time dhcpcd starts, the
# time dhcpcd gets IP configuration information (or not) and when
# avahi-daemon is bounced.
command = ['/usr/local/sbin/gateway.sh', interface]
logging.debug("Preparing to configure interface %s.", interface)
if self.test:
logging.debug("Pretending to run gateway.sh on interface %s.", interface)
logging.debug("Command that would be run:\n%s", ' '.join(command))
else:
subprocess.Popen(command)
# See what value was returned by the script.
# Set up a list of mesh interfaces for which babeld is already running.
#
# NOTE: the interfaces variable doesn't seem to ever get used anywhere :/
#
interfaces = self._get_mesh_interfaces(interface)
# Update the network configuration database to reflect the fact that
# the interface is now a gateway. Search the table of Ethernet
# interfaces first.
self._update_netconfdb(interface)
# Display the confirmation of the operation to the user.
try:
page = self.templatelookup.get_template("/gateways/done.html")
return page.render(title = "Enable gateway?",
purpose_of_page = "Confirm gateway mode.",
interface = interface)
except:
_utils.output_error_data()
def enable(self):
# Set up the error and successful output messages.
error = ""
output = ""
# Set up a default set of command line options for babeld. Some of
# these are redundant but are present in case an older version of
# babeld is used on the node. See the following file to see why:
# http://www.pps.jussieu.fr/~jch/software/babel/CHANGES.text
common_babeld_opts = ["-m", "ff02:0:0:0:0:0:1:6", "-p", "6696", "-D", "-g", "33123", "-c", "/etc/babeld.conf"]
# Create a set of unique command line options for babeld. Right now,
# this variable is empty but it might be used in the future. Maybe
# it'll be populated from a config file or something.
unique_babeld_opts = []
# Set up a list of mesh interfaces for which babeld is already running.
interfaces = []
query = "SELECT interface, enabled, protocol FROM meshes WHERE enabled='yes' AND protocol='babel';"
connection, cursor = _utils.execute_query(self.meshconfdb, query)
results = cursor.fetchall()
for i in results:
logging.debug("Adding interface: %s", i[0])
interfaces.append(i[0])
# By definition, if we're in this method the new interface hasn't been
# added yet.
interfaces.append(self.interface)
self.update_babeld(common_babeld_opts, unique_babeld_opts, interfaces)
# Get the PID of babeld, then test to see if that pid exists and
# corresponds to a running babeld process. If there is no match,
# babeld isn't running.
pid = self.pid_check()
if pid:
error, output = self._pid_helper(pid, error, output, cursor, connection, commit=True)
cursor.close()
# Render the HTML page.
try:
page = self.templatelookup.get_template("/mesh/enabled.html")
return page.render(
title="Byzantium Node Mesh Configuration",
purpose_of_page="Mesh Interface Enabled",
protocol=self.protocol,
interface=self.interface,
error=error,
output=output,
)
except:
_utils.output_error_data()
def removefrommesh(self, interface=None):
logging.debug("Entered MeshConfiguration.removefrommesh().")
# Configure this instance of the object for the interface the user
# wants to remove from the mesh.
self.interface = interface
self.protocol = "babel"
self.enabled = "yes"
# Render the HTML page.
try:
page = self.templatelookup.get_template("/mesh/removefrommesh.html")
return page.render(
title="Byzantium Node Mesh Configuration", purpose_of_page="Disable Mesh Interface", interface=interface
)
except:
_utils.output_error_data()
def removefrommesh(self, interface=None):
logging.debug("Entered MeshConfiguration.removefrommesh().")
# Configure this instance of the object for the interface the user
# wants to remove from the mesh.
self.interface = interface
self.protocol = 'babel'
self.enabled = 'yes'
# Render the HTML page.
try:
page = self.templatelookup.get_template(
"/mesh/removefrommesh.html")
return page.render(title="Byzantium Node Mesh Configuration",
purpose_of_page="Disable Mesh Interface",
interface=interface)
except:
_utils.output_error_data()
def addtomesh(self, interface=None):
# Store the name of the network interface and whether or not it's
# enabled in the object's attributes. Right now only the Babel
# protocol is supported, so that's hardcoded for the moment (but it
# could change in later releases).
self.interface = interface
self.protocol = 'babel'
self.enabled = 'no'
# Render the HTML page.
try:
page = self.templatelookup.get_template("/mesh/addtomesh.html")
return page.render(title="Byzantium Node Mesh Configuration",
purpose_of_page="Enable Mesh Interfaces",
interface=self.interface,
protocol=self.protocol)
except:
_utils.output_error_data()
def addtomesh(self, interface=None):
# Store the name of the network interface and whether or not it's
# enabled in the object's attributes. Right now only the Babel
# protocol is supported, so that's hardcoded for the moment (but it
# could change in later releases).
self.interface = interface
self.protocol = "babel"
self.enabled = "no"
# Render the HTML page.
try:
page = self.templatelookup.get_template("/mesh/addtomesh.html")
return page.render(
title="Byzantium Node Mesh Configuration",
purpose_of_page="Enable Mesh Interfaces",
interface=self.interface,
protocol=self.protocol,
)
except:
_utils.output_error_data()
def index(self):
ethernet_buttons = ""
wireless_buttons = ""
# To find any new network interfaces, rescan the network interfaces on
# the node.
self.update_network_interfaces()
query = "SELECT interface FROM wired WHERE gateway='no';"
_, cursor = _utils.execute_query(self.netconfdb, query)
results = cursor.fetchall()
if results:
for interface in results:
ethernet_buttons = ethernet_buttons + "<td><input type='submit' name='interface' value='" + interface[
0] + "' /></td>\n"
# Generate a list of wireless interfaces on the node that are not
# enabled but are known. As before, each button gets is own button
# in a table.
cursor.execute(
"SELECT mesh_interface FROM wireless WHERE gateway='no';")
results = cursor.fetchall()
if results:
for interface in results:
wireless_buttons = wireless_buttons + "<td><input type='submit' name='interface' value='" + interface[
0] + "' /></td>\n"
# Close the connection to the database.
cursor.close()
# Render the HTML page.
try:
page = self.templatelookup.get_template("/gateways/index.html")
return page.render(title="Network Gateway",
purpose_of_page="Configure Network Gateway",
ethernet_buttons=ethernet_buttons,
wireless_buttons=wireless_buttons)
except:
_utils.output_error_data()
def wireless(self, interface=None):
# Store the name of the interface in question in a class attribute for
# use later.
self.interface = interface
# Set up variables to hold the ESSID and channel of the wireless
# uplink.
channel = 0
essid = ''
channel, essid, warning = _utils.check_for_configured_interface(self.netconfdb, interface, channel, essid)
# The forms in the HTML template do everything here, as well. This
# method only accepts input for use later.
try:
page = self.templatelookup.get_template("/gateways/wireless.html")
return page.render(title = "Configure wireless uplink.",
purpose_of_page = "Set wireless uplink parameters.",
warning = warning, interface = interface,
channel = channel, essid = essid)
except:
_utils.output_error_data()
def index(self):
ethernet_buttons = ""
wireless_buttons = ""
# To find any new network interfaces, rescan the network interfaces on
# the node.
self.update_network_interfaces()
query = "SELECT interface FROM wired WHERE gateway='no';"
_, cursor = _utils.execute_query(self.netconfdb, query)
results = cursor.fetchall()
if results:
for interface in results:
ethernet_buttons = ethernet_buttons + "<td><input type='submit' name='interface' value='" + interface[0] + "' /></td>\n"
# Generate a list of wireless interfaces on the node that are not
# enabled but are known. As before, each button gets is own button
# in a table.
cursor.execute("SELECT mesh_interface FROM wireless WHERE gateway='no';")
results = cursor.fetchall()
if results:
for interface in results:
wireless_buttons = wireless_buttons + "<td><input type='submit' name='interface' value='" + interface[0] + "' /></td>\n"
# Close the connection to the database.
cursor.close()
# Render the HTML page.
try:
page = self.templatelookup.get_template("/gateways/index.html")
return page.render(title = "Network Gateway",
purpose_of_page = "Configure Network Gateway",
ethernet_buttons = ethernet_buttons,
wireless_buttons = wireless_buttons)
except:
_utils.output_error_data()
def set_ip(self):
# If we've made it this far, the user's decided to (re)configure a
# network interface. Full steam ahead, damn the torpedoes!
# First, take the wireless NIC offline so its mode can be changed.
command = ['/sbin/ifconfig', self.mesh_interface, 'down']
output = subprocess.Popen(command)
time.sleep(5)
# Wrap this whole process in a loop to ensure that stubborn wireless
# interfaces are configured reliably. The wireless NIC has to make it
# all the way through one iteration of the loop without errors before
# we can go on.
while True:
# Set the mode, ESSID and channel.
command = ['/sbin/iwconfig', self.mesh_interface, 'mode ad-hoc']
output = subprocess.Popen(command)
command = [
'/sbin/iwconfig', self.mesh_interface, 'essid', self.essid
]
output = subprocess.Popen(command)
command = [
'/sbin/iwconfig', self.mesh_interface, 'channel', self.channel
]
output = subprocess.Popen(command)
# Run iwconfig again and capture the current wireless configuration.
command = ['/sbin/iwconfig', self.mesh_interface]
output = subprocess.Popen(command).stdout
configuration = output.readlines()
# Test the interface by going through the captured text to see if
# it's in ad-hoc mode. If it's not, put it in ad-hoc mode and go
# back to the top of the loop to try again.
for line in configuration:
if 'Mode' in line:
line = line.strip()
mode = line.split(' ')[0].split(':')[1]
if mode != 'Ad-Hoc':
continue
# Test the ESSID to see if it's been set properly.
for line in configuration:
if 'ESSID' in line:
line = line.strip()
essid = line.split(' ')[-1].split(':')[1]
if essid != self.essid:
continue
# Check the wireless channel to see if it's been set properly.
for line in configuration:
if 'Frequency' in line:
line = line.strip()
frequency = line.split(' ')[2].split(':')[1]
if frequency != self.frequency:
continue
# "Victory is mine!"
# --Stewie, _Family Guy_
break
# Call ifconfig and set up the network configuration information.
command = [
'/sbin/ifconfig', self.mesh_interface, self.mesh_ip, 'netmask',
self.mesh_netmask, 'up'
]
output = subprocess.Popen(command)
time.sleep(5)
# Add the client interface.
command = [
'/sbin/ifconfig', self.client_interface, self.client_ip, 'up'
]
output = subprocess.Popen(command)
template = ('yes', self.channel, self.essid, self.mesh_interface,
self.client_interface, self.mesh_interface)
_utils.set_wireless_db_entry(self.netconfdb, template)
# Send this information to the methods that write the /etc/hosts and
# dnsmasq config files.
networkconfiguration.make_hosts(self.hosts_file,
self.test,
starting_ip=self.client_ip)
networkconfiguration.configure_dnsmasq(self.dnsmasq_include_file,
self.test,
starting_ip=self.client_ip)
# Render and display the page.
try:
page = self.templatelookup.get_template("/network/done.html")
return page.render(title="Network interface configured.",
purpose_of_page="Configured!",
interface=self.mesh_interface,
ip_address=self.mesh_ip,
netmask=self.mesh_netmask,
client_ip=self.client_ip,
client_netmask=self.client_netmask)
except:
_utils.output_error_data()
def tcpip(self, essid=None, channel=None):
logging.debug("Entered NetworkConfiguration.tcpip().")
# Store the ESSID and wireless channel in the class' attribute set if
# they were passed as args.
if essid:
self.essid = essid
if channel:
self.channel = channel
# Initialize the Python environment's randomizer.
random.seed()
# Connect to the network configuration database.
connection = sqlite3.connect(self.netconfdb)
cursor = connection.cursor()
# To run arping, the interface has to be up. Check the database to
# see if it's up, and if not flip it on for a few seconds to test.
template = (self.mesh_interface, 'yes', )
cursor.execute("SELECT mesh_interface, enabled FROM wireless WHERE mesh_interface=? AND enabled=?;", template)
result = cursor.fetchall()
if not result:
self.update_mesh_interface_status('up')
# Sleep five seconds to give the hardware a chance to catch up.
time.sleep(5)
# First pick an IP address for the mesh interface on the node.
# Go into a loop in which pseudorandom IP addresses are chosen and
# tested to see if they have been taken already or not. Loop until we
# have a winner.
logging.debug("Probing for an IP address for the mesh interface.")
# Pick a random IP address in a 192.168/24.
addr = '192.168.'
addr = addr + str(random.randint(0, 254)) + '.'
addr = addr + str(random.randint(1, 254))
self.mesh_ip = self.get_unused_ip(self.mesh_interface, addr, kind="mesh")
# Next pick a distinct IP address for the client interface and its
# netblock. This is potentially trickier depending on how large the
# mesh gets.
logging.debug("Probing for an IP address for the client interface.")
# Pick a random IP address in a 10/24.
addr = '10.'
addr = addr + str(random.randint(0, 254)) + '.'
addr = addr + str(random.randint(0, 254)) + '.1'
self.mesh_ip = self.get_unused_ip(self.client_interface, addr, kind="client")
# For testing, hardcode some IP addresses so the rest of the code has
# something to work with.
if self.test:
self.mesh_ip = '192.168.1.1'
self.client_ip = '10.0.0.1'
# Deactivate the interface as if it was down to begin with.
if not result:
self.update_mesh_interface_status('down')
# Close the database connection.
connection.close()
# Run the "Are you sure?" page through the template interpeter.
try:
page = self.templatelookup.get_template("/network/confirm.html")
return page.render(title = "Confirm network address for interface.",
purpose_of_page = "Confirm IP configuration.",
interface = self.mesh_interface,
mesh_ip = self.mesh_ip,
mesh_netmask = self.mesh_netmask,
client_ip = self.client_ip,
client_netmask = self.client_netmask)
except:
_utils.output_error_data()
def set_ip(self):
logging.debug("Entered NetworkConfiguration.set_ip().")
# Set up the error catcher variable.
error = []
# Define the PID of the captive portal daemon in the topmost context
# of this method.
portal_pid = 0
# If we've made it this far, the user's decided to (re)configure a
# network interface. Full steam ahead, damn the torpedoes!
# First, take the wireless NIC offline so its mode can be changed.
self.update_mesh_interface_status('down')
time.sleep(5)
# Wrap this whole process in a loop to ensure that stubborn wireless
# interfaces are configured reliably. The wireless NIC has to make it
# all the way through one iteration of the loop without errors before
# we can go on.
while True:
logging.debug("At top of wireless configuration loop.")
chunks = {
"mode": ("mode", "ad-hoc"),
"ESSID": ("essid", self.essid),
"BSSID": ("ap", self.bssid),
"channel": ("channel", self.channel)
}
for k, v in chunks.iteritems():
logging.debug("Configuring wireless interface: %s = %s", k, v)
command = ['/sbin/iwconfig', self.mesh_interface]
command.extend(v)
if self.test:
logging.debug(
"NetworkConfiguration.set_ip() command to set the %s: %s",
k, ' '.join(command))
else:
subprocess.Popen(command)
time.sleep(1)
# Run iwconfig again and capture the current wireless configuration.
command = ['/sbin/iwconfig', self.mesh_interface]
configuration = ''
if self.test:
logging.debug(
"NetworkConfiguration.set_ip()command to capture the current state of a network interface: %s",
command)
else:
output = subprocess.Popen(command,
stdout=subprocess.PIPE).stdout
configuration = output.readlines()
break_flag = False
# Test the interface by going through the captured text to see if
# it's in ad-hoc mode. If it's not, go back to the top of the
# loop to try again.
for line in configuration:
if re.search("Mode|ESSID|Cell|Frequency", line):
line = line.split(' ')
else:
continue
if 'Mode' in line:
mode = line[0].split(':')[1]
if mode != 'Ad-Hoc':
logging.debug(
"Uh-oh! Not in ad-hoc mode! Starting over.")
break_flag = True
break
# Test the ESSID to see if it's been set properly.
if 'ESSID' in line:
essid = line[-1].split(':')[1]
if essid != self.essid:
logging.debug(
"Uh-oh! ESSID wasn't set! Starting over.")
break_flag = True
break
# Test the BSSID to see if it's been set properly.
if 'Cell' in line:
bssid = line[-1]
if bssid != self.bssid:
logging.debug(
"Uh-oh! BSSID wasn't set! Starting over.")
break_flag = True
break
# Check the wireless channel to see if it's been set properly.
if 'Frequency' in line:
frequency = line[2].split(':')[1]
if frequency != self.frequency:
logging.debug(
"Uh-oh! Wireless channel wasn't set! starting over."
)
break_flag = True
break
logging.debug("Hit bottom of the wireless configuration loop.")
# For the purpose of testing, exit after one iteration so we don't
# get stuck in an infinite loop.
if self.test:
break
# "Victory is mine!"
# --Stewie, _Family Guy_
if not (break_flag):
break
logging.debug("Wireless interface configured successfully.")
# Call ifconfig and set up the network configuration information.
logging.debug(
"Setting IP configuration information on wireless interface.")
command = [
'/sbin/ifconfig', self.mesh_interface, self.mesh_ip, 'netmask',
self.mesh_netmask, 'up'
]
if self.test:
logging.debug(
"NetworkConfiguration.set_ip()command to set the IP configuration of the mesh interface: %s",
command)
else:
subprocess.Popen(command)
time.sleep(5)
# Add the client interface.
logging.debug("Adding client interface.")
command = [
'/sbin/ifconfig', self.client_interface, self.client_ip, 'up'
]
if self.test:
logging.debug(
"NetworkConfiguration.set_ip()command to set the IP configuration of the client interface: %s",
command)
else:
subprocess.Popen(command)
template = ('yes', self.channel, self.essid, self.mesh_interface,
self.client_interface, self.mesh_interface)
_utils.set_wireless_db_entry(self.netconfdb, template)
# Start the captive portal daemon. This will also initialize the IP
# tables ruleset for the client interface.
logging.debug("Starting captive portal daemon.")
captive_portal_daemon = [
'/usr/local/sbin/captive_portal.py', '-i',
str(self.mesh_interface), '-a', self.client_ip, '-d'
]
captive_portal_return = 0
if self.test:
logging.debug(
"NetworkConfiguration.set_ip() command to start the captive portal daemon: %s",
captive_portal_daemon)
captive_portal_return = 6
else:
captive_portal_return = subprocess.Popen(captive_portal_daemon)
logging.debug(
"Sleeping for 5 seconds to see if a race condition is the reason we can't get the PID of the captive portal daemon."
)
time.sleep(5)
# Now do some error checking.
warnings = "<p>WARNING! captive_portal.py exited with code %d - %s!</p>\n"
if captive_portal_return == 1:
error.append(
warnings %
(captive_portal_return,
"insufficient command line arguments passed to daemon"))
elif captive_portal_return == 2:
error.append(
warnings %
(captive_portal_return, "bad arguments passed to daemon"))
elif captive_portal_return == 3:
error.append(
warnings %
(captive_portal_return,
"bad IP tables commands during firewall initialization"))
elif captive_portal_return == 4:
error.append(
warnings %
(captive_portal_return, "bad parameters passed to IP tables"))
elif captive_portal_return == 5:
error.append(
warnings %
(captive_portal_return, "daemon already running on interface"))
elif captive_portal_return == 6:
error.append(
"<p>NOTICE: captive_portal.py started in TEST mode - did not actually start up!</p>\n"
)
else:
logging.debug("Getting PID of captive portal daemon.")
# If the captive portal daemon started successfully, get its PID.
# Note that we have to take into account both regular and test mode.
captive_portal_pidfile = 'captive_portal.' + self.mesh_interface
if os.path.exists('/var/run/' + captive_portal_pidfile):
captive_portal_pidfile = '/var/run/' + captive_portal_pidfile
elif os.path.exists('/tmp/' + captive_portal_pidfile):
captive_portal_pidfile = '/tmp/' + captive_portal_pidfile
else:
error.append(
"<p>WARNING: Unable to open captive portal PID file " +
captive_portal_pidfile + "</p>\n")
logging.debug(
"Unable to find PID file %s of captive portal daemon.",
captive_portal_pidfile)
# Try to open the PID file.
logging.debug("Trying to open %s.", captive_portal_pidfile)
portal_pid = 0
try:
pidfile = open(str(captive_portal_pidfile), 'r')
portal_pid = pidfile.readline()
pidfile.close()
except:
error.append(
"<p>WARNING: Unable to open captive portal PID file " +
captive_portal_pidfile + "</p>\n")
logging.debug("value of portal_pid is %s.", portal_pid)
if self.test:
logging.debug("Faking PID of captive_portal.py.")
portal_pid = "Insert clever PID for captive_portal.py here."
if not portal_pid:
portal_pid = "ERROR: captive_portal.py failed, returned code " + str(
captive_portal_return) + "."
logging.debug(
"Captive portal daemon failed to start. Exited with code %s.",
str(captive_portal_return))
# Send this information to the methods that write the /etc/hosts and
# dnsmasq config files.
logging.debug("Generating dnsmasq configuration files.")
problem = make_hosts(self.hosts_file,
self.test,
starting_ip=self.client_ip)
if problem:
error.append(
"<p>WARNING! /etc/hosts.mesh not generated! Something went wrong!</p>"
)
logging.debug("Couldn't generate /etc/hosts.mesh!")
configure_dnsmasq(self.dnsmasq_include_file,
self.test,
starting_ip=self.client_ip)
# Render and display the page.
try:
page = self.templatelookup.get_template("/network/done.html")
return page.render(title="Network interface configured.",
purpose_of_page="Configured!",
error=''.join(error),
interface=self.mesh_interface,
ip_address=self.mesh_ip,
netmask=self.mesh_netmask,
portal_pid=portal_pid,
client_ip=self.client_ip,
client_netmask=self.client_netmask)
except:
_utils.output_error_data()
def set_ip(self):
logging.debug("Entered NetworkConfiguration.set_ip().")
# Set up the error catcher variable.
error = []
# Define the PID of the captive portal daemon in the topmost context
# of this method.
portal_pid = 0
# If we've made it this far, the user's decided to (re)configure a
# network interface. Full steam ahead, damn the torpedoes!
# First, take the wireless NIC offline so its mode can be changed.
self.update_mesh_interface_status('down')
time.sleep(5)
# Wrap this whole process in a loop to ensure that stubborn wireless
# interfaces are configured reliably. The wireless NIC has to make it
# all the way through one iteration of the loop without errors before
# we can go on.
while True:
logging.debug("At top of wireless configuration loop.")
chunks = {"mode": ("mode", "ad-hoc"),
"ESSID": ("essid", self.essid),
"BSSID": ("ap", self.bssid),
"channel": ("channel", self.channel)}
for k, v in chunks.iteritems():
logging.debug("Configuring wireless interface: %s = %s", k, v)
command = ['/sbin/iwconfig', self.mesh_interface]
command.extend(v)
if self.test:
logging.debug("NetworkConfiguration.set_ip() command to set the %s: %s", k, ' '.join(command))
else:
subprocess.Popen(command)
time.sleep(1)
# Run iwconfig again and capture the current wireless configuration.
command = ['/sbin/iwconfig', self.mesh_interface]
configuration = ''
if self.test:
logging.debug("NetworkConfiguration.set_ip()command to capture the current state of a network interface: %s", command)
else:
output = subprocess.Popen(command, stdout=subprocess.PIPE).stdout
configuration = output.readlines()
break_flag = False
# Test the interface by going through the captured text to see if
# it's in ad-hoc mode. If it's not, go back to the top of the
# loop to try again.
for line in configuration:
if re.search("Mode|ESSID|Cell|Frequency", line):
line = line.split(' ')
else:
continue
if 'Mode' in line:
mode = line[0].split(':')[1]
if mode != 'Ad-Hoc':
logging.debug("Uh-oh! Not in ad-hoc mode! Starting over.")
break_flag = True
break
# Test the ESSID to see if it's been set properly.
if 'ESSID' in line:
essid = line[-1].split(':')[1]
if essid != self.essid:
logging.debug("Uh-oh! ESSID wasn't set! Starting over.")
break_flag = True
break
# Test the BSSID to see if it's been set properly.
if 'Cell' in line:
bssid = line[-1]
if bssid != self.bssid:
logging.debug("Uh-oh! BSSID wasn't set! Starting over.")
break_flag = True
break
# Check the wireless channel to see if it's been set properly.
if 'Frequency' in line:
frequency = line[2].split(':')[1]
if frequency != self.frequency:
logging.debug("Uh-oh! Wireless channel wasn't set! starting over.")
break_flag = True
break
logging.debug("Hit bottom of the wireless configuration loop.")
# For the purpose of testing, exit after one iteration so we don't
# get stuck in an infinite loop.
if self.test:
break
# "Victory is mine!"
# --Stewie, _Family Guy_
if not(break_flag):
break
logging.debug("Wireless interface configured successfully.")
# Call ifconfig and set up the network configuration information.
logging.debug("Setting IP configuration information on wireless interface.")
command = ['/sbin/ifconfig', self.mesh_interface, self.mesh_ip,
'netmask', self.mesh_netmask, 'up']
if self.test:
logging.debug("NetworkConfiguration.set_ip()command to set the IP configuration of the mesh interface: %s", command)
else:
subprocess.Popen(command)
time.sleep(5)
# Add the client interface.
logging.debug("Adding client interface.")
command = ['/sbin/ifconfig', self.client_interface, self.client_ip, 'up']
if self.test:
logging.debug("NetworkConfiguration.set_ip()command to set the IP configuration of the client interface: %s", command)
else:
subprocess.Popen(command)
template = ('yes', self.channel, self.essid, self.mesh_interface, self.client_interface, self.mesh_interface)
_utils.set_wireless_db_entry(self.netconfdb, template)
# Start the captive portal daemon. This will also initialize the IP
# tables ruleset for the client interface.
logging.debug("Starting captive portal daemon.")
captive_portal_daemon = ['/usr/local/sbin/captive_portal.py', '-i',
str(self.mesh_interface), '-a', self.client_ip,
'-d' ]
captive_portal_return = 0
if self.test:
logging.debug("NetworkConfiguration.set_ip() command to start the captive portal daemon: %s", captive_portal_daemon)
captive_portal_return = 6
else:
captive_portal_return = subprocess.Popen(captive_portal_daemon)
logging.debug("Sleeping for 5 seconds to see if a race condition is the reason we can't get the PID of the captive portal daemon.")
time.sleep(5)
# Now do some error checking.
warnings = "<p>WARNING! captive_portal.py exited with code %d - %s!</p>\n"
if captive_portal_return == 1:
error.append(warnings % (captive_portal_return, "insufficient command line arguments passed to daemon"))
elif captive_portal_return == 2:
error.append(warnings % (captive_portal_return, "bad arguments passed to daemon"))
elif captive_portal_return == 3:
error.append(warnings % (captive_portal_return, "bad IP tables commands during firewall initialization"))
elif captive_portal_return == 4:
error.append(warnings % (captive_portal_return, "bad parameters passed to IP tables"))
elif captive_portal_return == 5:
error.append(warnings % (captive_portal_return, "daemon already running on interface"))
elif captive_portal_return == 6:
error.append("<p>NOTICE: captive_portal.py started in TEST mode - did not actually start up!</p>\n")
else:
logging.debug("Getting PID of captive portal daemon.")
# If the captive portal daemon started successfully, get its PID.
# Note that we have to take into account both regular and test mode.
captive_portal_pidfile = 'captive_portal.' + self.mesh_interface
if os.path.exists('/var/run/' + captive_portal_pidfile):
captive_portal_pidfile = '/var/run/' + captive_portal_pidfile
elif os.path.exists('/tmp/' + captive_portal_pidfile):
captive_portal_pidfile = '/tmp/' + captive_portal_pidfile
else:
error.append("<p>WARNING: Unable to open captive portal PID file " + captive_portal_pidfile + "</p>\n")
logging.debug("Unable to find PID file %s of captive portal daemon.", captive_portal_pidfile)
# Try to open the PID file.
logging.debug("Trying to open %s.", captive_portal_pidfile)
portal_pid = 0
try:
pidfile = open(str(captive_portal_pidfile), 'r')
portal_pid = pidfile.readline()
pidfile.close()
except:
error.append("<p>WARNING: Unable to open captive portal PID file " + captive_portal_pidfile + "</p>\n")
logging.debug("value of portal_pid is %s.", portal_pid)
if self.test:
logging.debug("Faking PID of captive_portal.py.")
portal_pid = "Insert clever PID for captive_portal.py here."
if not portal_pid:
portal_pid = "ERROR: captive_portal.py failed, returned code " + str(captive_portal_return) + "."
logging.debug("Captive portal daemon failed to start. Exited with code %s.", str(captive_portal_return))
# Send this information to the methods that write the /etc/hosts and
# dnsmasq config files.
logging.debug("Generating dnsmasq configuration files.")
problem = make_hosts(self.hosts_file, self.test, starting_ip=self.client_ip)
if problem:
error.append("<p>WARNING! /etc/hosts.mesh not generated! Something went wrong!</p>")
logging.debug("Couldn't generate /etc/hosts.mesh!")
configure_dnsmasq(self.dnsmasq_include_file, self.test, starting_ip=self.client_ip)
# Render and display the page.
try:
page = self.templatelookup.get_template("/network/done.html")
return page.render(title = "Network interface configured.",
purpose_of_page = "Configured!",
error = ''.join(error), interface = self.mesh_interface,
ip_address = self.mesh_ip,
netmask = self.mesh_netmask,
portal_pid = portal_pid,
client_ip = self.client_ip,
client_netmask = self.client_netmask)
except:
_utils.output_error_data()
def tcpip(self, essid=None, channel=None):
logging.debug("Entered NetworkConfiguration.tcpip().")
# Store the ESSID and wireless channel in the class' attribute set if
# they were passed as args.
if essid:
self.essid = essid
if channel:
self.channel = channel
# Initialize the Python environment's randomizer.
random.seed()
# Connect to the network configuration database.
connection = sqlite3.connect(self.netconfdb)
cursor = connection.cursor()
# To run arping, the interface has to be up. Check the database to
# see if it's up, and if not flip it on for a few seconds to test.
template = (
self.mesh_interface,
'yes',
)
cursor.execute(
"SELECT mesh_interface, enabled FROM wireless WHERE mesh_interface=? AND enabled=?;",
template)
result = cursor.fetchall()
if not result:
self.update_mesh_interface_status('up')
# Sleep five seconds to give the hardware a chance to catch up.
time.sleep(5)
# First pick an IP address for the mesh interface on the node.
# Go into a loop in which pseudorandom IP addresses are chosen and
# tested to see if they have been taken already or not. Loop until we
# have a winner.
logging.debug("Probing for an IP address for the mesh interface.")
# Pick a random IP address in a 192.168/24.
addr = '192.168.'
addr = addr + str(random.randint(0, 254)) + '.'
addr = addr + str(random.randint(1, 254))
self.mesh_ip = self.get_unused_ip(self.mesh_interface,
addr,
kind="mesh")
# Next pick a distinct IP address for the client interface and its
# netblock. This is potentially trickier depending on how large the
# mesh gets.
logging.debug("Probing for an IP address for the client interface.")
# Pick a random IP address in a 10/24.
addr = '10.'
addr = addr + str(random.randint(0, 254)) + '.'
addr = addr + str(random.randint(0, 254)) + '.1'
self.mesh_ip = self.get_unused_ip(self.client_interface,
addr,
kind="client")
# For testing, hardcode some IP addresses so the rest of the code has
# something to work with.
if self.test:
self.mesh_ip = '192.168.1.1'
self.client_ip = '10.0.0.1'
# Deactivate the interface as if it was down to begin with.
if not result:
self.update_mesh_interface_status('down')
# Close the database connection.
connection.close()
# Run the "Are you sure?" page through the template interpeter.
try:
page = self.templatelookup.get_template("/network/confirm.html")
return page.render(title="Confirm network address for interface.",
purpose_of_page="Confirm IP configuration.",
interface=self.mesh_interface,
mesh_ip=self.mesh_ip,
mesh_netmask=self.mesh_netmask,
client_ip=self.client_ip,
client_netmask=self.client_netmask)
except:
_utils.output_error_data()
def index(self):
logging.debug("Entering NetworkConfiguration.index().")
# Reinitialize this class' attributes in case the user wants to
# reconfigure an interface. It'll be used to set the default values
# of the HTML fields.
self.reinitialize_attributes()
# Get a list of all network interfaces on the node (sans loopback).
wired, wireless = enumerate_network_interfaces()
logging.debug("Contents of wired[]: %s", wired)
logging.debug("Contents of wireless[]: %s", wireless)
# MOOF MOOF MOOF - call to stub implementation. We can use the list
# immediately above (interfaces) as the list to compare the database
# against.
# Test to see if any network interfaces have gone away.
#logging.debug("Pruning missing network interfaces.")
#self.prune(interfaces)
# Build tables containing the interfaces extant. At the same time,
# search the network configuration databases for interfaces that are
# already configured and give them a different color. If they're up
# and running give them yet another color.
connection = sqlite3.connect(self.netconfdb)
cursor = connection.cursor()
wireless_buttons = ""
ethernet_buttons = ""
interface_tag_start = "<input type='submit' name='interface' value='"
# Start with wireless interfaces.
for i in wireless:
logging.debug("Checking to see if %s is in the database.", i)
cursor.execute(
"SELECT mesh_interface, enabled FROM wireless WHERE mesh_interface=?",
(i, ))
result = cursor.fetchall()
# If the interface is not found in database, add it.
if not result:
logging.debug("Adding %s to table 'wireless'.", i)
# gateway, client_interface, enabled, channel, essid,
# mesh_interface
template = (
'no',
(i + ':1'),
'no',
'0',
'',
i,
)
cursor.execute("INSERT INTO wireless VALUES (?,?,?,?,?,?);",
template)
connection.commit()
wireless_buttons += "%s%s' />\n" % (interface_tag_start, i)
continue
# If it is there test to see if it's been configured or not. If it
# has, use a CSS hack to make its button a different color.
if result[0][1] == "yes":
wireless_buttons += "%s%s' style='background-color:red' />\n" % (
interface_tag_start, i)
continue
# If all else fails, just add the button without any extra
# decoration.
wireless_buttons += "%s%s' />\n" % (interface_tag_start, i)
# Wired interfaces.
for i in wired:
logging.debug("Checking to see if %s is in the database.", i)
cursor.execute(
"SELECT interface, enabled FROM wired WHERE interface=?",
(i, ))
result = cursor.fetchall()
# If the interface is not found in database, add it.
if not result:
logging.debug("Adding %s to table 'wired'.", i)
# enabled, gateway, interface
template = (
'no',
'no',
i,
)
cursor.execute("INSERT INTO wired VALUES (?,?,?);", template)
connection.commit()
ethernet_buttons += "%s%s' />\n" % (interface_tag_start, i)
continue
# If it is found test to see if it's been configured or not. If it
# has, use a CSS hack to make its button a different color.
if result[0][1] == "yes":
ethernet_buttons += "%s%s' style='background-color:red' />\n" % (
interface_tag_start, i)
continue
# If all else fails, just add the button without any extra
# decoration.
ethernet_buttons += "%s%s' />\n" % (interface_tag_start, i)
# Render the HTML page.
cursor.close()
try:
page = self.templatelookup.get_template("/network/index.html")
return page.render(title="Byzantium Node Network Interfaces",
purpose_of_page="Configure Network Interfaces",
wireless_buttons=wireless_buttons,
ethernet_buttons=ethernet_buttons)
except:
_utils.output_error_data()
def index(self):
# This is technically irrelevant because the class' attributes are blank
# when instantiated, but it's useful for setting up the HTML fields.
self.reinitialize_attributes()
# Populate the database of mesh interfaces using the network interface
# database as a template. Start by pulling a list of interfaces out of
# the network configuration database.
error = []
netconfconn = sqlite3.connect(self.netconfdb)
netconfcursor = netconfconn.cursor()
interfaces = []
netconfcursor.execute("SELECT mesh_interface, enabled FROM wireless;")
results = netconfcursor.fetchall()
active_interfaces = []
if not results:
# Display an error page which says that no wireless interfaces have
# been configured yet.
error.append(
"<p>ERROR: No wireless network interfaces have been configured yet. <a href='/network'>You need to do that first!</a></p>"
)
else:
# Open a connection to the mesh configuration database.
meshconfconn = sqlite3.connect(self.meshconfdb)
meshconfcursor = meshconfconn.cursor()
# Walk through the list of results.
for i in results:
# Is the network interface already configured?
if i[1] == "yes":
# See if the interface is already in the mesh configuration
# database, and if it's not insert it.
template = (i[0],)
meshconfcursor.execute("SELECT interface, enabled FROM meshes WHERE interface=?;", template)
interface_found = meshconfcursor.fetchall()
interface_tag = "<input type='submit' name='interface' value='"
if not interface_found:
template = ("no", i[0], "babel")
meshconfcursor.execute("INSERT INTO meshes VALUES (?, ?, ?);", template)
meshconfconn.commit()
# This is a network interface that's ready to configure,
# so add it to the HTML template as a button.
interfaces.append("%s%s' style='background-color:white;' />\n" % (interface_tag, i[0]))
else:
# If the interface is enabled, add it to the row of
# active interfaces with a different color.
if interface_found[0][1] == "yes":
active_interfaces.append(
"%s%s' style='background-color:green;' />\n" % (interface_tag, i[0])
)
else:
# The mesh interface hasn't been configured.
interfaces.append("%s%s' />\n" % (interface_tag, i[0]))
else:
# This interface isn't configured but it's in the database,
# so add it to the template as an unclickable button.
# While it might not be a good idea to put unusable buttons
# into the page, it would tell the user that the interfaces
# were detected.
interfaces.append("%s%s' style='background-color:orange;' />\n" % (interface_tag, i[0]))
meshconfcursor.close()
# Clean up our connections to the configuration databases.
netconfcursor.close()
# Render the HTML page.
try:
page = self.templatelookup.get_template("/mesh/index.html")
return page.render(
title="Byzantium Node Mesh Configuration",
purpose_of_page="Configure Mesh Interfaces",
error="".join(error),
interfaces="".join(interfaces),
active_interfaces="".join(active_interfaces),
)
except:
_utils.output_error_data()
def disable(self):
logging.debug("Entered MeshConfiguration.disable().")
# Set up the error and successful output messages.
error = ""
output = ""
# Set up a default set of command line options for babeld. Some of
# these are redundant but are present in case an older version of
# babeld is used on the node. See the following file to see why:
# http://www.pps.jussieu.fr/~jch/software/babel/CHANGES.text
common_babeld_opts = ["-m", "ff02:0:0:0:0:0:1:6", "-p", "6696", "-D"]
# Create a set of unique command line options for babeld. Right now,
# this variable is empty but it might be used in the future. Maybe
# it'll be populated from a config file or something.
unique_babeld_opts = []
# Set up a list of mesh interfaces for which babeld is already running
# but omit self.interface.
interfaces = []
query = "SELECT interface FROM meshes WHERE enabled='yes' AND protocol='babel';"
connection, cursor = _utils.execute_query(self.meshconfdb, query)
results = cursor.fetchall()
for i in results:
if i[0] != self.interface:
interfaces.append(i[0])
# If there are no mesh interfaces configured anymore, then the node
# is offline.
if not interfaces:
output = "Byzantium node offline."
babeld_command = self.update_babeld(common_babeld_opts, unique_babeld_opts, interfaces)
# If there is at least one wireless network interface still configured,
# then re-run babeld.
if interfaces:
logging.debug("value of babeld_command is %s", babeld_command)
if self.test:
logging.debug("Pretending to restart babeld.")
else:
subprocess.Popen(babeld_command)
time.sleep(self.babeld_timeout)
# Get the PID of babeld, then test to see if that pid exists and
# corresponds to a running babeld process. If there is no match,
# babeld isn't running, in which case something went wrong.
pid = self.pid_check()
if pid:
error, output = self._pid_helper(pid, error, output, cursor, connection)
else:
# There are no mesh interfaces left, so update the database to
# deconfigure self.interface.
template = ("no", self.interface)
cursor.execute("UPDATE meshes SET enabled=? WHERE interface=?;", template)
connection.commit()
cursor.close()
# Render the HTML page.
try:
page = self.templatelookup.get_template("/mesh/disabled.html")
return page.render(
title="Byzantium Node Mesh Configuration",
purpose_of_page="Disable Mesh Interface",
error=error,
output=output,
)
except:
_utils.output_error_data()
def disable(self):
logging.debug("Entered MeshConfiguration.disable().")
# Set up the error and successful output messages.
error = ''
output = ''
# Set up a default set of command line options for babeld. Some of
# these are redundant but are present in case an older version of
# babeld is used on the node. See the following file to see why:
# http://www.pps.jussieu.fr/~jch/software/babel/CHANGES.text
common_babeld_opts = ['-m', 'ff02:0:0:0:0:0:1:6', '-p', '6696', '-D']
# Create a set of unique command line options for babeld. Right now,
# this variable is empty but it might be used in the future. Maybe
# it'll be populated from a config file or something.
unique_babeld_opts = []
# Set up a list of mesh interfaces for which babeld is already running
# but omit self.interface.
interfaces = []
query = "SELECT interface FROM meshes WHERE enabled='yes' AND protocol='babel';"
connection, cursor = _utils.execute_query(self.meshconfdb, query)
results = cursor.fetchall()
for i in results:
if i[0] != self.interface:
interfaces.append(i[0])
# If there are no mesh interfaces configured anymore, then the node
# is offline.
if not interfaces:
output = 'Byzantium node offline.'
babeld_command = self.update_babeld(common_babeld_opts,
unique_babeld_opts, interfaces)
# If there is at least one wireless network interface still configured,
# then re-run babeld.
if interfaces:
logging.debug("value of babeld_command is %s", babeld_command)
if self.test:
logging.debug("Pretending to restart babeld.")
else:
subprocess.Popen(babeld_command)
time.sleep(self.babeld_timeout)
# Get the PID of babeld, then test to see if that pid exists and
# corresponds to a running babeld process. If there is no match,
# babeld isn't running, in which case something went wrong.
pid = self.pid_check()
if pid:
error, output = self._pid_helper(pid, error, output, cursor,
connection)
else:
# There are no mesh interfaces left, so update the database to
# deconfigure self.interface.
template = (
'no',
self.interface,
)
cursor.execute("UPDATE meshes SET enabled=? WHERE interface=?;",
template)
connection.commit()
cursor.close()
# Render the HTML page.
try:
page = self.templatelookup.get_template("/mesh/disabled.html")
return page.render(title="Byzantium Node Mesh Configuration",
purpose_of_page="Disable Mesh Interface",
error=error,
output=output)
except:
_utils.output_error_data()
def index(self):
# This is technically irrelevant because the class' attributes are blank
# when instantiated, but it's useful for setting up the HTML fields.
self.reinitialize_attributes()
# Populate the database of mesh interfaces using the network interface
# database as a template. Start by pulling a list of interfaces out of
# the network configuration database.
error = []
netconfconn = sqlite3.connect(self.netconfdb)
netconfcursor = netconfconn.cursor()
interfaces = []
netconfcursor.execute("SELECT mesh_interface, enabled FROM wireless;")
results = netconfcursor.fetchall()
active_interfaces = []
if not results:
# Display an error page which says that no wireless interfaces have
# been configured yet.
error.append(
"<p>ERROR: No wireless network interfaces have been configured yet. <a href='/network'>You need to do that first!</a></p>"
)
else:
# Open a connection to the mesh configuration database.
meshconfconn = sqlite3.connect(self.meshconfdb)
meshconfcursor = meshconfconn.cursor()
# Walk through the list of results.
for i in results:
# Is the network interface already configured?
if i[1] == 'yes':
# See if the interface is already in the mesh configuration
# database, and if it's not insert it.
template = (i[0], )
meshconfcursor.execute(
"SELECT interface, enabled FROM meshes WHERE interface=?;",
template)
interface_found = meshconfcursor.fetchall()
interface_tag = "<input type='submit' name='interface' value='"
if not interface_found:
template = (
'no',
i[0],
'babel',
)
meshconfcursor.execute(
"INSERT INTO meshes VALUES (?, ?, ?);", template)
meshconfconn.commit()
# This is a network interface that's ready to configure,
# so add it to the HTML template as a button.
interfaces.append(
"%s%s' style='background-color:white;' />\n" %
(interface_tag, i[0]))
else:
# If the interface is enabled, add it to the row of
# active interfaces with a different color.
if interface_found[0][1] == 'yes':
active_interfaces.append(
"%s%s' style='background-color:green;' />\n" %
(interface_tag, i[0]))
else:
# The mesh interface hasn't been configured.
interfaces.append("%s%s' />\n" %
(interface_tag, i[0]))
else:
# This interface isn't configured but it's in the database,
# so add it to the template as an unclickable button.
# While it might not be a good idea to put unusable buttons
# into the page, it would tell the user that the interfaces
# were detected.
interfaces.append(
"%s%s' style='background-color:orange;' />\n" %
(interface_tag, i[0]))
meshconfcursor.close()
# Clean up our connections to the configuration databases.
netconfcursor.close()
# Render the HTML page.
try:
page = self.templatelookup.get_template("/mesh/index.html")
return page.render(title="Byzantium Node Mesh Configuration",
purpose_of_page="Configure Mesh Interfaces",
error=''.join(error),
interfaces=''.join(interfaces),
active_interfaces=''.join(active_interfaces))
except:
_utils.output_error_data()
def set_ip(self):
# If we've made it this far, the user's decided to (re)configure a
# network interface. Full steam ahead, damn the torpedoes!
# First, take the wireless NIC offline so its mode can be changed.
command = ['/sbin/ifconfig', self.mesh_interface, 'down']
output = subprocess.Popen(command)
time.sleep(5)
# Wrap this whole process in a loop to ensure that stubborn wireless
# interfaces are configured reliably. The wireless NIC has to make it
# all the way through one iteration of the loop without errors before
# we can go on.
while True:
# Set the mode, ESSID and channel.
command = ['/sbin/iwconfig', self.mesh_interface, 'mode ad-hoc']
output = subprocess.Popen(command)
command = ['/sbin/iwconfig', self.mesh_interface, 'essid', self.essid]
output = subprocess.Popen(command)
command = ['/sbin/iwconfig', self.mesh_interface, 'channel', self.channel]
output = subprocess.Popen(command)
# Run iwconfig again and capture the current wireless configuration.
command = ['/sbin/iwconfig', self.mesh_interface]
output = subprocess.Popen(command).stdout
configuration = output.readlines()
# Test the interface by going through the captured text to see if
# it's in ad-hoc mode. If it's not, put it in ad-hoc mode and go
# back to the top of the loop to try again.
for line in configuration:
if 'Mode' in line:
line = line.strip()
mode = line.split(' ')[0].split(':')[1]
if mode != 'Ad-Hoc':
continue
# Test the ESSID to see if it's been set properly.
for line in configuration:
if 'ESSID' in line:
line = line.strip()
essid = line.split(' ')[-1].split(':')[1]
if essid != self.essid:
continue
# Check the wireless channel to see if it's been set properly.
for line in configuration:
if 'Frequency' in line:
line = line.strip()
frequency = line.split(' ')[2].split(':')[1]
if frequency != self.frequency:
continue
# "Victory is mine!"
# --Stewie, _Family Guy_
break
# Call ifconfig and set up the network configuration information.
command = ['/sbin/ifconfig', self.mesh_interface, self.mesh_ip,
'netmask', self.mesh_netmask, 'up']
output = subprocess.Popen(command)
time.sleep(5)
# Add the client interface.
command = ['/sbin/ifconfig', self.client_interface, self.client_ip, 'up']
output = subprocess.Popen(command)
template = ('yes', self.channel, self.essid, self.mesh_interface, self.client_interface, self.mesh_interface)
_utils.set_wireless_db_entry(self.netconfdb, template)
# Send this information to the methods that write the /etc/hosts and
# dnsmasq config files.
networkconfiguration.make_hosts(self.hosts_file, self.test, starting_ip=self.client_ip)
networkconfiguration.configure_dnsmasq(self.dnsmasq_include_file, self.test, starting_ip=self.client_ip)
# Render and display the page.
try:
page = self.templatelookup.get_template("/network/done.html")
return page.render(title = "Network interface configured.",
purpose_of_page = "Configured!",
interface = self.mesh_interface,
ip_address = self.mesh_ip,
netmask = self.mesh_netmask,
client_ip = self.client_ip,
client_netmask = self.client_netmask)
except:
_utils.output_error_data()
def index(self):
logging.debug("Entering NetworkConfiguration.index().")
# Reinitialize this class' attributes in case the user wants to
# reconfigure an interface. It'll be used to set the default values
# of the HTML fields.
self.reinitialize_attributes()
# Get a list of all network interfaces on the node (sans loopback).
wired, wireless = enumerate_network_interfaces()
logging.debug("Contents of wired[]: %s", wired)
logging.debug("Contents of wireless[]: %s", wireless)
# MOOF MOOF MOOF - call to stub implementation. We can use the list
# immediately above (interfaces) as the list to compare the database
# against.
# Test to see if any network interfaces have gone away.
#logging.debug("Pruning missing network interfaces.")
#self.prune(interfaces)
# Build tables containing the interfaces extant. At the same time,
# search the network configuration databases for interfaces that are
# already configured and give them a different color. If they're up
# and running give them yet another color.
connection = sqlite3.connect(self.netconfdb)
cursor = connection.cursor()
wireless_buttons = ""
ethernet_buttons = ""
interface_tag_start = "<input type='submit' name='interface' value='"
# Start with wireless interfaces.
for i in wireless:
logging.debug("Checking to see if %s is in the database.", i)
cursor.execute("SELECT mesh_interface, enabled FROM wireless WHERE mesh_interface=?", (i, ))
result = cursor.fetchall()
# If the interface is not found in database, add it.
if not result:
logging.debug("Adding %s to table 'wireless'.", i)
# gateway, client_interface, enabled, channel, essid,
# mesh_interface
template = ('no', (i + ':1'), 'no', '0', '', i, )
cursor.execute("INSERT INTO wireless VALUES (?,?,?,?,?,?);", template)
connection.commit()
wireless_buttons += "%s%s' />\n" % (interface_tag_start, i)
continue
# If it is there test to see if it's been configured or not. If it
# has, use a CSS hack to make its button a different color.
if result[0][1] == "yes":
wireless_buttons += "%s%s' style='background-color:red' />\n" % (interface_tag_start, i)
continue
# If all else fails, just add the button without any extra
# decoration.
wireless_buttons += "%s%s' />\n" % (interface_tag_start, i)
# Wired interfaces.
for i in wired:
logging.debug("Checking to see if %s is in the database.", i)
cursor.execute("SELECT interface, enabled FROM wired WHERE interface=?", (i, ))
result = cursor.fetchall()
# If the interface is not found in database, add it.
if not result:
logging.debug("Adding %s to table 'wired'.", i)
# enabled, gateway, interface
template = ('no', 'no', i, )
cursor.execute("INSERT INTO wired VALUES (?,?,?);", template)
connection.commit()
ethernet_buttons += "%s%s' />\n" % (interface_tag_start, i)
continue
# If it is found test to see if it's been configured or not. If it
# has, use a CSS hack to make its button a different color.
if result[0][1] == "yes":
ethernet_buttons += "%s%s' style='background-color:red' />\n" % (interface_tag_start, i)
continue
# If all else fails, just add the button without any extra
# decoration.
ethernet_buttons += "%s%s' />\n" % (interface_tag_start, i)
# Render the HTML page.
cursor.close()
try:
page = self.templatelookup.get_template("/network/index.html")
return page.render(title = "Byzantium Node Network Interfaces",
purpose_of_page = "Configure Network Interfaces",
wireless_buttons = wireless_buttons,
ethernet_buttons = ethernet_buttons)
except:
_utils.output_error_data()
