def set_route():
# Get routes, confirm entry does not exist
routes = netinfo.route_info()
# If no tools exist and empty dict is returned
if 'ipv4' not in routes:
return
# We only care about IPv4
routes = routes['ipv4']
# Searchable list
dests = []
# Parse each route into a more searchable format
for route in routes:
dests.append(route['destination'])
gw_present = '100.64.0.0' in dests or '100.64.0.0/10' in dests
dest_present = '169.254.169.254' in dests
# If not IPv6 only (No link local)
# or the route is already present
if not gw_present or dest_present:
return
# Set metadata route
if subp.which('ip'):
subp.subp([
'ip', 'route', 'add', '169.254.169.254/32', 'dev',
net.find_fallback_nic()
])
elif subp.which('route'):
subp.subp(['route', 'add', '-net', '169.254.169.254/32', '100.64.0.1'])
def check_route(url):
# Get routes, confirm entry exists
routes = netinfo.route_info()
# If no tools exist and empty dict is returned
if "ipv4" not in routes:
return False
# Parse each route into a more searchable format
for route in routes["ipv4"]:
if route.get("destination", None) in url:
return True
return False
def set_route():
# Get routes, confirm entry does not exist
routes = netinfo.route_info()
# If no tools exist and empty dict is returned
if "ipv4" not in routes:
return
# We only care about IPv4
routes = routes["ipv4"]
# Searchable list
dests = []
# Parse each route into a more searchable format
for route in routes:
dests.append(route["destination"])
gw_present = "100.64.0.0" in dests or "100.64.0.0/10" in dests
dest_present = "169.254.169.254" in dests
# If not IPv6 only (No link local)
# or the route is already present
if not gw_present or dest_present:
return
# Set metadata route
if subp.which("ip"):
subp.subp([
"ip",
"route",
"add",
"169.254.169.254/32",
"dev",
net.find_fallback_nic(),
])
elif subp.which("route"):
subp.subp(["route", "add", "-net", "169.254.169.254/32", "100.64.0.1"])