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main.py
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main.py
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#! /usr/bin/python -u
import errno
import json
import netaddr
import netifaces
import os
import re
import subprocess
import sys
import click
from click_default_group import DefaultGroup
from natsort import natsorted
from tabulate import tabulate
import sonic_platform
from swsssdk import ConfigDBConnector
from swsssdk import SonicV2Connector
import mlnx
SONIC_CFGGEN_PATH = '/usr/local/bin/sonic-cfggen'
try:
# noinspection PyPep8Naming
import ConfigParser as configparser
except ImportError:
# noinspection PyUnresolvedReferences
import configparser
# This is from the aliases example:
# https://github.com/pallets/click/blob/57c6f09611fc47ca80db0bd010f05998b3c0aa95/examples/aliases/aliases.py
class Config(object):
"""Object to hold CLI config"""
def __init__(self):
self.path = os.getcwd()
self.aliases = {}
def read_config(self, filename):
parser = configparser.RawConfigParser()
parser.read([filename])
try:
self.aliases.update(parser.items('aliases'))
except configparser.NoSectionError:
pass
class InterfaceAliasConverter(object):
"""Class which handles conversion between interface name and alias"""
def __init__(self):
self.alias_max_length = 0
config_db = ConfigDBConnector()
config_db.connect()
self.port_dict = config_db.get_table('PORT')
if not self.port_dict:
click.echo("port_dict is None!")
raise click.Abort()
for port_name in self.port_dict.keys():
try:
if self.alias_max_length < len(
self.port_dict[port_name]['alias']):
self.alias_max_length = len(
self.port_dict[port_name]['alias'])
except KeyError:
break
def name_to_alias(self, interface_name):
"""Return vendor interface alias if SONiC
interface name is given as argument
"""
if interface_name is not None:
for port_name in self.port_dict.keys():
if interface_name == port_name:
return self.port_dict[port_name]['alias']
click.echo("Invalid interface {}".format(interface_name))
raise click.Abort()
def alias_to_name(self, interface_alias):
"""Return SONiC interface name if vendor
port alias is given as argument
"""
if interface_alias is not None:
for port_name in self.port_dict.keys():
if interface_alias == self.port_dict[port_name]['alias']:
return port_name
click.echo("Invalid interface {}".format(interface_alias))
raise click.Abort()
# Global Config object
_config = None
# This aliased group has been modified from click examples to inherit from DefaultGroup instead of click.Group.
# DefaultGroup is a superclass of click.Group which calls a default subcommand instead of showing
# a help message if no subcommand is passed
class AliasedGroup(DefaultGroup):
"""This subclass of a DefaultGroup supports looking up aliases in a config
file and with a bit of magic.
"""
def get_command(self, ctx, cmd_name):
global _config
# If we haven't instantiated our global config, do it now and load current config
if _config is None:
_config = Config()
# Load our config file
cfg_file = os.path.join(os.path.dirname(__file__), 'aliases.ini')
_config.read_config(cfg_file)
# Try to get builtin commands as normal
rv = click.Group.get_command(self, ctx, cmd_name)
if rv is not None:
return rv
# No builtin found. Look up an explicit command alias in the config
if cmd_name in _config.aliases:
actual_cmd = _config.aliases[cmd_name]
return click.Group.get_command(self, ctx, actual_cmd)
# Alternative option: if we did not find an explicit alias we
# allow automatic abbreviation of the command. "status" for
# instance will match "st". We only allow that however if
# there is only one command.
matches = [x for x in self.list_commands(ctx)
if x.lower().startswith(cmd_name.lower())]
if not matches:
# No command name matched. Issue Default command.
ctx.arg0 = cmd_name
cmd_name = self.default_cmd_name
return DefaultGroup.get_command(self, ctx, cmd_name)
elif len(matches) == 1:
return DefaultGroup.get_command(self, ctx, matches[0])
ctx.fail('Too many matches: %s' % ', '.join(sorted(matches)))
# To be enhanced. Routing-stack information should be collected from a global
# location (configdb?), so that we prevent the continous execution of this
# bash oneliner. To be revisited once routing-stack info is tracked somewhere.
def get_routing_stack():
command = "sudo docker ps | grep bgp | awk '{print$2}' | cut -d'-' -f3 | cut -d':' -f1"
try:
proc = subprocess.Popen(command,
stdout=subprocess.PIPE,
shell=True,
stderr=subprocess.STDOUT)
stdout = proc.communicate()[0]
proc.wait()
result = stdout.rstrip('\n')
except OSError, e:
raise OSError("Cannot detect routing-stack")
return (result)
# Global Routing-Stack variable
routing_stack = get_routing_stack()
def run_command(command, display_cmd=False):
if display_cmd:
click.echo(click.style("Command: ", fg='cyan') + click.style(command, fg='green'))
# No conversion needed for intfutil commands as it already displays
# both SONiC interface name and alias name for all interfaces.
if get_interface_mode() == "alias" and not command.startswith("intfutil"):
run_command_in_alias_mode(command)
raise sys.exit(0)
proc = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE)
while True:
output = proc.stdout.readline()
if output == "" and proc.poll() is not None:
break
if output:
click.echo(output.rstrip('\n'))
rc = proc.poll()
if rc != 0:
sys.exit(rc)
def get_interface_mode():
mode = os.getenv('SONIC_CLI_IFACE_MODE')
if mode is None:
mode = "default"
return mode
# Global class instance for SONiC interface name to alias conversion
iface_alias_converter = InterfaceAliasConverter()
def print_output_in_alias_mode(output, index):
"""Convert and print all instances of SONiC interface
name to vendor-sepecific interface aliases.
"""
alias_name = ""
interface_name = ""
# Adjust tabulation width to length of alias name
if output.startswith("---"):
word = output.split()
dword = word[index]
underline = dword.rjust(iface_alias_converter.alias_max_length,
'-')
word[index] = underline
output = ' ' .join(word)
# Replace SONiC interface name with vendor alias
word = output.split()
if word:
interface_name = word[index]
interface_name = interface_name.replace(':', '')
for port_name in natsorted(iface_alias_converter.port_dict.keys()):
if interface_name == port_name:
alias_name = iface_alias_converter.port_dict[port_name]['alias']
if alias_name:
if len(alias_name) < iface_alias_converter.alias_max_length:
alias_name = alias_name.rjust(
iface_alias_converter.alias_max_length)
output = output.replace(interface_name, alias_name, 1)
click.echo(output.rstrip('\n'))
def run_command_in_alias_mode(command):
"""Run command and replace all instances of SONiC interface names
in output with vendor-sepecific interface aliases.
"""
process = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE)
while True:
output = process.stdout.readline()
if output == '' and process.poll() is not None:
break
if output:
index = 1
raw_output = output
output = output.lstrip()
if command.startswith("portstat"):
"""Show interface counters"""
index = 0
if output.startswith("IFACE"):
output = output.replace("IFACE", "IFACE".rjust(
iface_alias_converter.alias_max_length))
print_output_in_alias_mode(output, index)
elif command == "pfcstat":
"""Show pfc counters"""
index = 0
if output.startswith("Port Tx"):
output = output.replace("Port Tx", "Port Tx".rjust(
iface_alias_converter.alias_max_length))
elif output.startswith("Port Rx"):
output = output.replace("Port Rx", "Port Rx".rjust(
iface_alias_converter.alias_max_length))
print_output_in_alias_mode(output, index)
elif (command.startswith("sudo sfputil show eeprom")):
"""show interface transceiver eeprom"""
index = 0
print_output_in_alias_mode(raw_output, index)
elif (command.startswith("sudo sfputil show")):
"""show interface transceiver lpmode,
presence
"""
index = 0
if output.startswith("Port"):
output = output.replace("Port", "Port".rjust(
iface_alias_converter.alias_max_length))
print_output_in_alias_mode(output, index)
elif command == "sudo lldpshow":
"""show lldp table"""
index = 0
if output.startswith("LocalPort"):
output = output.replace("LocalPort", "LocalPort".rjust(
iface_alias_converter.alias_max_length))
print_output_in_alias_mode(output, index)
elif command.startswith("queuestat"):
"""show queue counters"""
index = 0
if output.startswith("Port"):
output = output.replace("Port", "Port".rjust(
iface_alias_converter.alias_max_length))
print_output_in_alias_mode(output, index)
elif command == "fdbshow":
"""show mac"""
index = 3
if output.startswith("No."):
output = " " + output
output = re.sub(
'Type', ' Type', output)
elif output[0].isdigit():
output = " " + output
print_output_in_alias_mode(output, index)
elif command.startswith("nbrshow"):
"""show arp"""
index = 2
if "Vlan" in output:
output = output.replace('Vlan', ' Vlan')
print_output_in_alias_mode(output, index)
else:
if index:
for port_name in iface_alias_converter.port_dict.keys():
regex = re.compile(r"\b{}\b".format(port_name))
result = re.findall(regex, raw_output)
if result:
interface_name = ''.join(result)
if not raw_output.startswith(" PortID:"):
raw_output = raw_output.replace(
interface_name,
iface_alias_converter.name_to_alias(
interface_name))
click.echo(raw_output.rstrip('\n'))
rc = process.poll()
if rc != 0:
sys.exit(rc)
CONTEXT_SETTINGS = dict(help_option_names=['-h', '--help', '-?'])
#
# 'cli' group (root group)
#
# This is our entrypoint - the main "show" command
# TODO: Consider changing function name to 'show' for better understandability
@click.group(cls=AliasedGroup, context_settings=CONTEXT_SETTINGS)
def cli():
"""SONiC command line - 'show' command"""
pass
#
# 'arp' command ("show arp")
#
@cli.command()
@click.argument('ipaddress', required=False)
@click.option('-if', '--iface')
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def arp(ipaddress, iface, verbose):
"""Show IP ARP table"""
cmd = "nbrshow -4"
if ipaddress is not None:
cmd += " -ip {}".format(ipaddress)
if iface is not None:
if get_interface_mode() == "alias":
if not ((iface.startswith("PortChannel")) or
(iface.startswith("eth"))):
iface = iface_alias_converter.alias_to_name(iface)
cmd += " -if {}".format(iface)
run_command(cmd, display_cmd=verbose)
#
# 'ndp' command ("show ndp")
#
@cli.command()
@click.argument('ip6address', required=False)
@click.option('-if', '--iface')
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def ndp(ip6address, iface, verbose):
"""Show IPv6 Neighbour table"""
cmd = "nbrshow -6"
if ip6address is not None:
cmd += " -ip {}".format(ip6address)
if iface is not None:
cmd += " -if {}".format(iface)
run_command(cmd, display_cmd=verbose)
#
# 'interfaces' group ("show interfaces ...")
#
@cli.group(cls=AliasedGroup, default_if_no_args=False)
def interfaces():
"""Show details of the network interfaces"""
pass
#
# 'neighbor' group ###
#
@interfaces.group(cls=AliasedGroup, default_if_no_args=False)
def neighbor():
"""Show neighbor related information"""
pass
# 'expected' subcommand ("show interface neighbor expected")
@neighbor.command()
@click.argument('interfacename', required=False)
def expected(interfacename):
"""Show expected neighbor information by interfaces"""
neighbor_cmd = 'sonic-cfggen -d --var-json "DEVICE_NEIGHBOR"'
p1 = subprocess.Popen(neighbor_cmd, shell=True, stdout=subprocess.PIPE)
neighbor_dict = json.loads(p1.stdout.read())
neighbor_metadata_cmd = 'sonic-cfggen -d --var-json "DEVICE_NEIGHBOR_METADATA"'
p2 = subprocess.Popen(neighbor_metadata_cmd, shell=True, stdout=subprocess.PIPE)
neighbor_metadata_dict = json.loads(p2.stdout.read())
#Swap Key and Value from interface: name to name: interface
device2interface_dict = {}
for port in natsorted(neighbor_dict.keys()):
device2interface_dict[neighbor_dict[port]['name']] = {'localPort': port, 'neighborPort': neighbor_dict[port]['port']}
header = ['LocalPort', 'Neighbor', 'NeighborPort', 'NeighborLoopback', 'NeighborMgmt', 'NeighborType']
body = []
if interfacename:
for device in natsorted(neighbor_metadata_dict.keys()):
if device2interface_dict[device]['localPort'] == interfacename:
body.append([device2interface_dict[device]['localPort'],
device,
device2interface_dict[device]['neighborPort'],
neighbor_metadata_dict[device]['lo_addr'],
neighbor_metadata_dict[device]['mgmt_addr'],
neighbor_metadata_dict[device]['type']])
else:
for device in natsorted(neighbor_metadata_dict.keys()):
body.append([device2interface_dict[device]['localPort'],
device,
device2interface_dict[device]['neighborPort'],
neighbor_metadata_dict[device]['lo_addr'],
neighbor_metadata_dict[device]['mgmt_addr'],
neighbor_metadata_dict[device]['type']])
click.echo(tabulate(body, header))
@interfaces.group(cls=AliasedGroup, default_if_no_args=False)
def transceiver():
"""Show SFP Transceiver information"""
pass
@transceiver.command()
@click.argument('interfacename', required=False)
@click.option('-d', '--dom', 'dump_dom', is_flag=True, help="Also display Digital Optical Monitoring (DOM) data")
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def eeprom(interfacename, dump_dom, verbose):
"""Show interface transceiver EEPROM information"""
cmd = "sudo sfputil show eeprom"
if dump_dom:
cmd += " --dom"
if interfacename is not None:
if get_interface_mode() == "alias":
interfacename = iface_alias_converter.alias_to_name(interfacename)
cmd += " -p {}".format(interfacename)
run_command(cmd, display_cmd=verbose)
@transceiver.command()
@click.argument('interfacename', required=False)
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def lpmode(interfacename, verbose):
"""Show interface transceiver low-power mode status"""
cmd = "sudo sfputil show lpmode"
if interfacename is not None:
if get_interface_mode() == "alias":
interfacename = iface_alias_converter.alias_to_name(interfacename)
cmd += " -p {}".format(interfacename)
run_command(cmd, display_cmd=verbose)
@transceiver.command()
@click.argument('interfacename', required=False)
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def presence(interfacename, verbose):
"""Show interface transceiver presence"""
cmd = "sudo sfputil show presence"
if interfacename is not None:
if get_interface_mode() == "alias":
interfacename = iface_alias_converter.alias_to_name(interfacename)
cmd += " -p {}".format(interfacename)
run_command(cmd, display_cmd=verbose)
@interfaces.command()
@click.argument('interfacename', required=False)
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def description(interfacename, verbose):
"""Show interface status, protocol and description"""
cmd = "intfutil description"
if interfacename is not None:
if get_interface_mode() == "alias":
interfacename = iface_alias_converter.alias_to_name(interfacename)
cmd += " {}".format(interfacename)
run_command(cmd, display_cmd=verbose)
@interfaces.command()
@click.argument('interfacename', required=False)
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def status(interfacename, verbose):
"""Show Interface status information"""
cmd = "intfutil status"
if interfacename is not None:
if get_interface_mode() == "alias":
interfacename = iface_alias_converter.alias_to_name(interfacename)
cmd += " {}".format(interfacename)
run_command(cmd, display_cmd=verbose)
# 'counters' subcommand ("show interfaces counters")
@interfaces.command()
@click.option('-a', '--printall', is_flag=True)
@click.option('-c', '--clear', is_flag=True)
@click.option('-p', '--period')
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def counters(period, printall, clear, verbose):
"""Show interface counters"""
cmd = "portstat"
if clear:
cmd += " -c"
else:
if printall:
cmd += " -a"
if period is not None:
cmd += " -p {}".format(period)
run_command(cmd, display_cmd=verbose)
# 'portchannel' subcommand ("show interfaces portchannel")
@interfaces.command()
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def portchannel(verbose):
"""Show PortChannel information"""
cmd = "teamshow"
run_command(cmd, display_cmd=verbose)
#
# 'pfc' group ("show pfc ...")
#
@cli.group(cls=AliasedGroup, default_if_no_args=False)
def pfc():
"""Show details of the priority-flow-control (pfc) """
pass
# 'counters' subcommand ("show interfaces pfccounters")
@pfc.command()
@click.option('-c', '--clear', is_flag=True)
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def counters(clear, verbose):
"""Show pfc counters"""
cmd = "pfcstat"
if clear:
cmd += " -c"
run_command(cmd, display_cmd=verbose)
# 'naming_mode' subcommand ("show interfaces naming_mode")
@interfaces.command()
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def naming_mode(verbose):
"""Show interface naming_mode status"""
click.echo(get_interface_mode())
#
# 'watermark' group ("show watermark telemetry interval")
#
@cli.group(cls=AliasedGroup, default_if_no_args=False)
def watermark():
"""Show details of watermark """
pass
@watermark.group()
def telemetry():
"""Show watermark telemetry info"""
pass
@telemetry.command('interval')
def show_tm_interval():
"""Show telemetry interval"""
command = 'watermarkcfg --show-interval'
run_command(command)
#
# 'queue' group ("show queue ...")
#
@cli.group(cls=AliasedGroup, default_if_no_args=False)
def queue():
"""Show details of the queues """
pass
# 'queuecounters' subcommand ("show queue counters")
@queue.command()
@click.argument('interfacename', required=False)
@click.option('-c', '--clear', is_flag=True)
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def counters(interfacename, clear, verbose):
"""Show queue counters"""
cmd = "queuestat"
if interfacename is not None:
if get_interface_mode() == "alias":
interfacename = iface_alias_converter.alias_to_name(interfacename)
if clear:
cmd += " -c"
else:
if interfacename is not None:
cmd += " -p {}".format(interfacename)
run_command(cmd, display_cmd=verbose)
# watermarks subcommands ("show queue watermarks|persistent-watermarks")
@queue.group()
def watermark():
"""Show queue user WM"""
pass
@watermark.command('unicast')
def wm_q_uni():
"""Show user WM for unicast queues"""
command = 'watermarkstat -t q_shared_uni'
run_command(command)
@watermark.command('multicast')
def wm_q_multi():
"""Show user WM for multicast queues"""
command = 'watermarkstat -t q_shared_multi'
run_command(command)
@queue.group(name='persistent-watermark')
def persistent_watermark():
"""Show queue persistent WM"""
pass
@persistent_watermark.command('unicast')
def pwm_q_uni():
"""Show persistent WM for persistent queues"""
command = 'watermarkstat -p -t q_shared_uni'
run_command(command)
@persistent_watermark.command('multicast')
def pwm_q_multi():
"""Show persistent WM for multicast queues"""
command = 'watermarkstat -p -t q_shared_multi'
run_command(command)
#
# 'priority-group' group ("show priority-group ...")
#
@cli.group(name='priority-group', cls=AliasedGroup, default_if_no_args=False)
def priority_group():
"""Show details of the PGs """
@priority_group.group()
def watermark():
"""Show priority_group user WM"""
pass
@watermark.command('headroom')
def wm_pg_headroom():
"""Show user headroom WM for pg"""
command = 'watermarkstat -t pg_headroom'
run_command(command)
@watermark.command('shared')
def wm_pg_shared():
"""Show user shared WM for pg"""
command = 'watermarkstat -t pg_shared'
run_command(command)
@priority_group.group(name='persistent-watermark')
def persistent_watermark():
"""Show queue persistent WM"""
pass
@persistent_watermark.command('headroom')
def pwm_pg_headroom():
"""Show persistent headroom WM for pg"""
command = 'watermarkstat -p -t pg_headroom'
run_command(command)
@persistent_watermark.command('shared')
def pwm_pg_shared():
"""Show persistent shared WM for pg"""
command = 'watermarkstat -p -t pg_shared'
run_command(command)
#
# 'mac' command ("show mac ...")
#
@cli.command()
@click.option('-v', '--vlan')
@click.option('-p', '--port')
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def mac(vlan, port, verbose):
"""Show MAC (FDB) entries"""
cmd = "fdbshow"
if vlan is not None:
cmd += " -v {}".format(vlan)
if port is not None:
cmd += " -p {}".format(port)
run_command(cmd, display_cmd=verbose)
#
# 'show route-map' command ("show route-map")
#
@cli.command('route-map')
@click.argument('route_map_name', required=False)
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def route_map(route_map_name, verbose):
"""show route-map"""
cmd = 'sudo vtysh -c "show route-map'
if route_map_name is not None:
cmd += ' {}'.format(route_map_name)
cmd += '"'
run_command(cmd, display_cmd=verbose)
#
# 'ip' group ("show ip ...")
#
# This group houses IP (i.e., IPv4) commands and subgroups
@cli.group(cls=AliasedGroup, default_if_no_args=False)
def ip():
"""Show IP (IPv4) commands"""
pass
#
# get_if_admin_state
#
# Given an interface name, return its admin state reported by the kernel.
#
def get_if_admin_state(iface):
admin_file = "/sys/class/net/{0}/flags"
try:
state_file = open(admin_file.format(iface), "r")
except IOError as e:
print "Error: unable to open file: %s" % str(e)
return "error"
content = state_file.readline().rstrip()
flags = int(content, 16)
if flags & 0x1:
return "up"
else:
return "down"
#
# get_if_oper_state
#
# Given an interface name, return its oper state reported by the kernel.
#
def get_if_oper_state(iface):
oper_file = "/sys/class/net/{0}/carrier"
try:
state_file = open(oper_file.format(iface), "r")
except IOError as e:
print "Error: unable to open file: %s" % str(e)
return "error"
oper_state = state_file.readline().rstrip()
if oper_state == "1":
return "up"
else:
return "down"
#
# 'show ip interfaces' command
#
# Display all interfaces with an IPv4 address and their admin/oper states.
# Addresses from all scopes are included. Interfaces with no addresses are
# excluded.
#
@ip.command()
def interfaces():
"""Show interfaces IPv4 address"""
header = ['Interface', 'IPv4 address/mask', 'Admin/Oper']
data = []
interfaces = natsorted(netifaces.interfaces())
for iface in interfaces:
ipaddresses = netifaces.ifaddresses(iface)
if netifaces.AF_INET in ipaddresses:
ifaddresses = []
for ipaddr in ipaddresses[netifaces.AF_INET]:
netmask = netaddr.IPAddress(ipaddr['netmask']).netmask_bits()
ifaddresses.append(["", str(ipaddr['addr']) + "/" + str(netmask)])
if len(ifaddresses) > 0:
admin = get_if_admin_state(iface)
if admin == "up":
oper = get_if_oper_state(iface)
else:
oper = "down"
data.append([iface, ifaddresses[0][1], admin + "/" + oper])
for ifaddr in ifaddresses[1:]:
data.append(["", ifaddr[1], ""])
print tabulate(data, header, tablefmt="simple", stralign='left', missingval="")
#
# 'route' subcommand ("show ip route")
#
@ip.command()
@click.argument('ipaddress', required=False)
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def route(ipaddress, verbose):
"""Show IP (IPv4) routing table"""
cmd = 'sudo vtysh -c "show ip route'
if ipaddress is not None:
cmd += ' {}'.format(ipaddress)
cmd += '"'
run_command(cmd, display_cmd=verbose)
#
# 'prefix-list' subcommand ("show ip prefix-list")
#
@ip.command('prefix-list')
@click.argument('prefix_list_name', required=False)
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def prefix_list(prefix_list_name, verbose):
"""show ip prefix-list"""
cmd = 'sudo vtysh -c "show ip prefix-list'
if prefix_list_name is not None:
cmd += ' {}'.format(prefix_list_name)
cmd += '"'
run_command(cmd, display_cmd=verbose)
# 'protocol' command
@ip.command()
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def protocol(verbose):
"""Show IPv4 protocol information"""
cmd = 'sudo vtysh -c "show ip protocol"'
run_command(cmd, display_cmd=verbose)
#
# 'ipv6' group ("show ipv6 ...")
#
# This group houses IPv6-related commands and subgroups
@cli.group(cls=AliasedGroup, default_if_no_args=False)
def ipv6():
"""Show IPv6 commands"""
pass
#
# 'show ipv6 interfaces' command
#
# Display all interfaces with an IPv6 address and their admin/oper states.
# Addresses from all scopes are included. Interfaces with no addresses are
# excluded.
#
@ipv6.command()
def interfaces():
"""Show interfaces IPv6 address"""
header = ['Interface', 'IPv6 address/mask', 'Admin/Oper']
data = []
interfaces = natsorted(netifaces.interfaces())
for iface in interfaces:
ipaddresses = netifaces.ifaddresses(iface)
if netifaces.AF_INET6 in ipaddresses:
ifaddresses = []
for ipaddr in ipaddresses[netifaces.AF_INET6]:
netmask = ipaddr['netmask'].split('/', 1)[-1]
ifaddresses.append(["", str(ipaddr['addr']) + "/" + str(netmask)])
if len(ifaddresses) > 0:
admin = get_if_admin_state(iface)
if admin == "up":
oper = get_if_oper_state(iface)
else:
oper = "down"
data.append([iface, ifaddresses[0][1], admin + "/" + oper])
for ifaddr in ifaddresses[1:]:
data.append(["", ifaddr[1], ""])
print tabulate(data, header, tablefmt="simple", stralign='left', missingval="")
#
# 'route' subcommand ("show ipv6 route")
#
@ipv6.command()
@click.argument('ipaddress', required=False)
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def route(ipaddress, verbose):
"""Show IPv6 routing table"""
cmd = 'sudo vtysh -c "show ipv6 route'
if ipaddress is not None:
cmd += ' {}'.format(ipaddress)
cmd += '"'
run_command(cmd, display_cmd=verbose)
# 'protocol' command
@ipv6.command()
@click.option('--verbose', is_flag=True, help="Enable verbose output")
def protocol(verbose):
"""Show IPv6 protocol information"""
cmd = 'sudo vtysh -c "show ipv6 protocol"'
run_command(cmd, display_cmd=verbose)
#
# Inserting BGP functionality into cli's show parse-chain.
# BGP commands are determined by the routing-stack being elected.
#