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minigraph.py
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minigraph.py
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from __future__ import print_function
import ipaddress
import math
import os
import sys
import json
from collections import defaultdict
from lxml import etree as ET
from lxml.etree import QName
from portconfig import get_port_config
from sonic_py_common.interface import backplane_prefix
# TODO: Remove this once we no longer support Python 2
if sys.version_info.major == 3:
UNICODE_TYPE = str
else:
UNICODE_TYPE = unicode
"""minigraph.py
version_added: "1.9"
author: Guohan Lu (gulv@microsoft.com)
short_description: Parse minigraph xml file and device description xml file
"""
ns = "Microsoft.Search.Autopilot.Evolution"
ns1 = "http://schemas.datacontract.org/2004/07/Microsoft.Search.Autopilot.Evolution"
ns2 = "Microsoft.Search.Autopilot.NetMux"
ns3 = "http://www.w3.org/2001/XMLSchema-instance"
# Device types
spine_chassis_frontend_role = 'SpineChassisFrontendRouter'
chassis_backend_role = 'ChassisBackendRouter'
backend_device_types = ['BackEndToRRouter', 'BackEndLeafRouter']
console_device_types = ['MgmtTsToR']
VLAN_SUB_INTERFACE_SEPARATOR = '.'
VLAN_SUB_INTERFACE_VLAN_ID = '10'
FRONTEND_ASIC_SUB_ROLE = 'FrontEnd'
BACKEND_ASIC_SUB_ROLE = 'BackEnd'
# Default Virtual Network Index (VNI)
vni_default = 8000
###############################################################################
#
# Minigraph parsing functions
#
###############################################################################
class minigraph_encoder(json.JSONEncoder):
def default(self, obj):
if isinstance(obj, (
ipaddress.IPv4Network, ipaddress.IPv6Network,
ipaddress.IPv4Address, ipaddress.IPv6Address
)):
return str(obj)
return json.JSONEncoder.default(self, obj)
def get_peer_switch_info(link_metadata, devices):
peer_switch_table = {}
for data in link_metadata.values():
if "PeerSwitch" in data:
peer_hostname = data["PeerSwitch"]
peer_lo_addr_str = devices[peer_hostname]["lo_addr"]
peer_lo_addr = ipaddress.ip_network(UNICODE_TYPE(peer_lo_addr_str)) if peer_lo_addr_str else None
peer_switch_table[peer_hostname] = {
'address_ipv4': str(peer_lo_addr.network_address) if peer_lo_addr else peer_lo_addr_str
}
return peer_switch_table
def parse_device(device):
lo_prefix = None
lo_prefix_v6 = None
mgmt_prefix = None
d_type = None # don't shadow type()
hwsku = None
name = None
deployment_id = None
cluster = None
for node in device:
if node.tag == str(QName(ns, "Address")):
lo_prefix = node.find(str(QName(ns2, "IPPrefix"))).text
elif node.tag == str(QName(ns, "AddressV6")):
lo_prefix_v6 = node.find(str(QName(ns2, "IPPrefix"))).text
elif node.tag == str(QName(ns, "ManagementAddress")):
mgmt_prefix = node.find(str(QName(ns2, "IPPrefix"))).text
elif node.tag == str(QName(ns, "Hostname")):
name = node.text
elif node.tag == str(QName(ns, "HwSku")):
hwsku = node.text
elif node.tag == str(QName(ns, "DeploymentId")):
deployment_id = node.text
elif node.tag == str(QName(ns, "ElementType")):
d_type = node.text
elif node.tag == str(QName(ns, "ClusterName")):
cluster = node.text
if d_type is None and str(QName(ns3, "type")) in device.attrib:
d_type = device.attrib[str(QName(ns3, "type"))]
return (lo_prefix, lo_prefix_v6, mgmt_prefix, name, hwsku, d_type, deployment_id, cluster)
def calculate_lcm_for_ecmp (nhdevices_bank_map, nhip_bank_map):
banks_enumerated = {}
lcm_array = []
for value in nhdevices_bank_map.values():
for key in nhip_bank_map.keys():
if nhip_bank_map[key] == value:
if value not in banks_enumerated:
banks_enumerated[value] = 1
else:
banks_enumerated[value] = banks_enumerated[value] + 1
for bank_enumeration in banks_enumerated.values():
lcm_list = range(1, bank_enumeration+1)
lcm_comp = lcm_list[0]
for i in lcm_list[1:]:
lcm_comp = lcm_comp * i / calculate_gcd(lcm_comp, i)
lcm_array.append(lcm_comp)
LCM = sum(lcm_array)
return int(LCM)
def calculate_gcd(x, y):
while y != 0:
(x, y) = (y, x % y)
return int(x)
def formulate_fine_grained_ecmp(version, dpg_ecmp_content, port_device_map, port_alias_map):
family = ""
tag = ""
neigh_key = []
if version == "ipv4":
family = "IPV4"
tag = "fgnhg_v4"
elif version == "ipv6":
family = "IPV6"
tag = "fgnhg_v6"
port_nhip_map = dpg_ecmp_content['port_nhip_map']
nhg_int = dpg_ecmp_content['nhg_int']
nhip_device_map = {port_nhip_map[x]: port_device_map[x] for x in port_device_map
if x in port_nhip_map}
nhip_devices = sorted(list(set(nhip_device_map.values())))
nhdevices_ip_bank_map = {device: bank for bank, device in enumerate(nhip_devices)}
nhip_bank_map = {ip: nhdevices_ip_bank_map[device] for ip, device in nhip_device_map.items()}
LCM = calculate_lcm_for_ecmp(nhdevices_ip_bank_map, nhip_bank_map)
FG_NHG_MEMBER = {ip: {"FG_NHG": tag, "bank": bank} for ip, bank in nhip_bank_map.items()}
nhip_port_map = dict(zip(port_nhip_map.values(), port_nhip_map.keys()))
for nhip, memberinfo in FG_NHG_MEMBER.items():
if nhip in nhip_port_map:
memberinfo["link"] = port_alias_map[nhip_port_map[nhip]]
FG_NHG_MEMBER[nhip] = memberinfo
FG_NHG = {tag: {"bucket_size": LCM, "match_mode": "nexthop-based"}}
for ip in nhip_bank_map:
neigh_key.append(str(nhg_int + "|" + ip))
NEIGH = {neigh_key: {"family": family} for neigh_key in neigh_key}
fine_grained_content = {"FG_NHG_MEMBER": FG_NHG_MEMBER, "FG_NHG": FG_NHG, "NEIGH": NEIGH}
return fine_grained_content
def parse_png(png, hname, dpg_ecmp_content = None):
neighbors = {}
devices = {}
console_dev = ''
console_port = ''
mgmt_dev = ''
mgmt_port = ''
port_speeds = {}
console_ports = {}
mux_cable_ports = {}
port_device_map = {}
png_ecmp_content = {}
FG_NHG_MEMBER = {}
FG_NHG = {}
NEIGH = {}
for child in png:
if child.tag == str(QName(ns, "DeviceInterfaceLinks")):
for link in child.findall(str(QName(ns, "DeviceLinkBase"))):
linktype = link.find(str(QName(ns, "ElementType"))).text
if linktype == "DeviceSerialLink":
enddevice = link.find(str(QName(ns, "EndDevice"))).text
endport = link.find(str(QName(ns, "EndPort"))).text
startdevice = link.find(str(QName(ns, "StartDevice"))).text
startport = link.find(str(QName(ns, "StartPort"))).text
baudrate = link.find(str(QName(ns, "Bandwidth"))).text
flowcontrol = 1 if link.find(str(QName(ns, "FlowControl"))) is not None and link.find(str(QName(ns, "FlowControl"))).text == 'true' else 0
if enddevice.lower() == hname.lower() and endport.isdigit():
console_ports[endport] = {
'remote_device': startdevice,
'baud_rate': baudrate,
'flow_control': flowcontrol
}
elif startport.isdigit():
console_ports[startport] = {
'remote_device': enddevice,
'baud_rate': baudrate,
'flow_control': flowcontrol
}
continue
if linktype == "DeviceInterfaceLink":
endport = link.find(str(QName(ns, "EndPort"))).text
startdevice = link.find(str(QName(ns, "StartDevice"))).text
port_device_map[endport] = startdevice
if linktype != "DeviceInterfaceLink" and linktype != "UnderlayInterfaceLink" and linktype != "DeviceMgmtLink":
continue
enddevice = link.find(str(QName(ns, "EndDevice"))).text
endport = link.find(str(QName(ns, "EndPort"))).text
startdevice = link.find(str(QName(ns, "StartDevice"))).text
startport = link.find(str(QName(ns, "StartPort"))).text
bandwidth_node = link.find(str(QName(ns, "Bandwidth")))
bandwidth = bandwidth_node.text if bandwidth_node is not None else None
if enddevice.lower() == hname.lower():
if endport in port_alias_map:
endport = port_alias_map[endport]
if linktype != "DeviceMgmtLink":
neighbors[endport] = {'name': startdevice, 'port': startport}
if bandwidth:
port_speeds[endport] = bandwidth
elif startdevice.lower() == hname.lower():
if startport in port_alias_map:
startport = port_alias_map[startport]
if linktype != "DeviceMgmtLink":
neighbors[startport] = {'name': enddevice, 'port': endport}
if bandwidth:
port_speeds[startport] = bandwidth
if child.tag == str(QName(ns, "Devices")):
for device in child.findall(str(QName(ns, "Device"))):
(lo_prefix, lo_prefix_v6, mgmt_prefix, name, hwsku, d_type, deployment_id, cluster) = parse_device(device)
device_data = {'lo_addr': lo_prefix, 'type': d_type, 'mgmt_addr': mgmt_prefix, 'hwsku': hwsku }
if cluster:
device_data['cluster'] = cluster
if deployment_id:
device_data['deployment_id'] = deployment_id
if lo_prefix_v6:
device_data['lo_addr_v6'] = lo_prefix_v6
devices[name] = device_data
if child.tag == str(QName(ns, "DeviceInterfaceLinks")):
for if_link in child.findall(str(QName(ns, 'DeviceLinkBase'))):
if str(QName(ns3, "type")) in if_link.attrib:
link_type = if_link.attrib[str(QName(ns3, "type"))]
if link_type == 'DeviceSerialLink':
for node in if_link:
if node.tag == str(QName(ns, "EndPort")):
console_port = node.text.split()[-1]
elif node.tag == str(QName(ns, "EndDevice")):
console_dev = node.text
elif link_type == 'DeviceMgmtLink':
for node in if_link:
if node.tag == str(QName(ns, "EndPort")):
mgmt_port = node.text.split()[-1]
elif node.tag == str(QName(ns, "EndDevice")):
mgmt_dev = node.text
if child.tag == str(QName(ns, "DeviceInterfaceLinks")):
for link in child.findall(str(QName(ns, 'DeviceLinkBase'))):
if link.find(str(QName(ns, "ElementType"))).text == "LogicalLink":
intf_name = link.find(str(QName(ns, "EndPort"))).text
if intf_name in port_alias_map:
intf_name = port_alias_map[intf_name]
mux_cable_ports[intf_name] = "true"
if (len(dpg_ecmp_content)):
for version, content in dpg_ecmp_content.items(): # version is ipv4 or ipv6
fine_grained_content = formulate_fine_grained_ecmp(version, content, port_device_map, port_alias_map) # port_alias_map
FG_NHG_MEMBER.update(fine_grained_content['FG_NHG_MEMBER'])
FG_NHG.update(fine_grained_content['FG_NHG'])
NEIGH.update(fine_grained_content['NEIGH'])
png_ecmp_content = {"FG_NHG_MEMBER": FG_NHG_MEMBER, "FG_NHG": FG_NHG, "NEIGH": NEIGH}
return (neighbors, devices, console_dev, console_port, mgmt_dev, mgmt_port, port_speeds, console_ports, mux_cable_ports, png_ecmp_content)
def parse_asic_external_link(link, asic_name, hostname):
neighbors = {}
port_speeds = {}
enddevice = link.find(str(QName(ns, "EndDevice"))).text
endport = link.find(str(QName(ns, "EndPort"))).text
startdevice = link.find(str(QName(ns, "StartDevice"))).text
startport = link.find(str(QName(ns, "StartPort"))).text
bandwidth_node = link.find(str(QName(ns, "Bandwidth")))
bandwidth = bandwidth_node.text if bandwidth_node is not None else None
# if chassis internal is false, the interface name will be
# interface alias which should be converted to asic port name
if (enddevice.lower() == hostname.lower()):
if ((endport in port_alias_asic_map) and
(asic_name.lower() in port_alias_asic_map[endport].lower())):
endport = port_alias_asic_map[endport]
neighbors[port_alias_map[endport]] = {'name': startdevice, 'port': startport}
if bandwidth:
port_speeds[port_alias_map[endport]] = bandwidth
elif (startdevice.lower() == hostname.lower()):
if ((startport in port_alias_asic_map) and
(asic_name.lower() in port_alias_asic_map[startport].lower())):
startport = port_alias_asic_map[startport]
neighbors[port_alias_map[startport]] = {'name': enddevice, 'port': endport}
if bandwidth:
port_speeds[port_alias_map[startport]] = bandwidth
return neighbors, port_speeds
def parse_asic_internal_link(link, asic_name, hostname):
neighbors = {}
port_speeds = {}
enddevice = link.find(str(QName(ns, "EndDevice"))).text
endport = link.find(str(QName(ns, "EndPort"))).text
startdevice = link.find(str(QName(ns, "StartDevice"))).text
startport = link.find(str(QName(ns, "StartPort"))).text
bandwidth_node = link.find(str(QName(ns, "Bandwidth")))
bandwidth = bandwidth_node.text if bandwidth_node is not None else None
if ((enddevice.lower() == asic_name.lower()) and
(startdevice.lower() != hostname.lower())):
if endport in port_alias_map:
endport = port_alias_map[endport]
neighbors[endport] = {'name': startdevice, 'port': startport}
if bandwidth:
port_speeds[endport] = bandwidth
elif ((startdevice.lower() == asic_name.lower()) and
(enddevice.lower() != hostname.lower())):
if startport in port_alias_map:
startport = port_alias_map[startport]
neighbors[startport] = {'name': enddevice, 'port': endport}
if bandwidth:
port_speeds[startport] = bandwidth
return neighbors, port_speeds
def parse_asic_png(png, asic_name, hostname):
neighbors = {}
devices = {}
port_speeds = {}
for child in png:
if child.tag == str(QName(ns, "DeviceInterfaceLinks")):
for link in child.findall(str(QName(ns, "DeviceLinkBase"))):
# Chassis internal node is used in multi-asic device or chassis minigraph
# where the minigraph will contain the internal asic connectivity and
# external neighbor information. The ChassisInternal node will be used to
# determine if the link is internal to the device or chassis.
chassis_internal_node = link.find(str(QName(ns, "ChassisInternal")))
chassis_internal = chassis_internal_node.text if chassis_internal_node is not None else "false"
# If the link is an external link include the external neighbor
# information in ASIC ports table
if chassis_internal.lower() == "false":
ext_neighbors, ext_port_speeds = parse_asic_external_link(link, asic_name, hostname)
neighbors.update(ext_neighbors)
port_speeds.update(ext_port_speeds)
else:
int_neighbors, int_port_speeds = parse_asic_internal_link(link, asic_name, hostname)
neighbors.update(int_neighbors)
port_speeds.update(int_port_speeds)
if child.tag == str(QName(ns, "Devices")):
for device in child.findall(str(QName(ns, "Device"))):
(lo_prefix, lo_prefix_v6, mgmt_prefix, name, hwsku, d_type, deployment_id, cluster) = parse_device(device)
device_data = {'lo_addr': lo_prefix, 'type': d_type, 'mgmt_addr': mgmt_prefix, 'hwsku': hwsku }
if cluster:
device_data['cluster'] = cluster
if deployment_id:
device_data['deployment_id'] = deployment_id
if lo_prefix_v6:
device_data['lo_addr_v6']= lo_prefix_v6
devices[name] = device_data
return (neighbors, devices, port_speeds)
def parse_loopback_intf(child):
lointfs = child.find(str(QName(ns, "LoopbackIPInterfaces")))
lo_intfs = {}
for lointf in lointfs.findall(str(QName(ns1, "LoopbackIPInterface"))):
intfname = lointf.find(str(QName(ns, "AttachTo"))).text
ipprefix = lointf.find(str(QName(ns1, "PrefixStr"))).text
lo_intfs[(intfname, ipprefix)] = {}
return lo_intfs
def parse_dpg(dpg, hname):
aclintfs = None
mgmtintfs = None
subintfs = None
tunnelintfs = defaultdict(dict)
for child in dpg:
"""
In Multi-NPU platforms the acl intfs are defined only for the host not for individual asic.
There is just one aclintf node in the minigraph
Get the aclintfs node first.
"""
if aclintfs is None and child.find(str(QName(ns, "AclInterfaces"))) is not None:
aclintfs = child.find(str(QName(ns, "AclInterfaces")))
"""
In Multi-NPU platforms the mgmt intfs are defined only for the host not for individual asic
There is just one mgmtintf node in the minigraph
Get the mgmtintfs node first. We need mgmt intf to get mgmt ip in per asic dockers.
"""
if mgmtintfs is None and child.find(str(QName(ns, "ManagementIPInterfaces"))) is not None:
mgmtintfs = child.find(str(QName(ns, "ManagementIPInterfaces")))
hostname = child.find(str(QName(ns, "Hostname")))
if hostname.text.lower() != hname.lower():
continue
vni = vni_default
vni_element = child.find(str(QName(ns, "VNI")))
if vni_element != None:
if vni_element.text.isdigit():
vni = int(vni_element.text)
else:
print("VNI must be an integer (use default VNI %d instead)" % vni_default, file=sys.stderr)
ipintfs = child.find(str(QName(ns, "IPInterfaces")))
intfs = {}
ip_intfs_map = {}
for ipintf in ipintfs.findall(str(QName(ns, "IPInterface"))):
intfalias = ipintf.find(str(QName(ns, "AttachTo"))).text
intfname = port_alias_map.get(intfalias, intfalias)
ipprefix = ipintf.find(str(QName(ns, "Prefix"))).text
intfs[(intfname, ipprefix)] = {}
ip_intfs_map[ipprefix] = intfalias
lo_intfs = parse_loopback_intf(child)
subintfs = child.find(str(QName(ns, "SubInterfaces")))
if subintfs is not None:
for subintf in subintfs.findall(str(QName(ns, "SubInterface"))):
intfalias = subintf.find(str(QName(ns, "AttachTo"))).text
intfname = port_alias_map.get(intfalias, intfalias)
ipprefix = subintf.find(str(QName(ns, "Prefix"))).text
subintfvlan = subintf.find(str(QName(ns, "Vlan"))).text
subintfname = intfname + VLAN_SUB_INTERFACE_SEPARATOR + subintfvlan
intfs[(subintfname, ipprefix)] = {}
mvrfConfigs = child.find(str(QName(ns, "MgmtVrfConfigs")))
mvrf = {}
if mvrfConfigs != None:
mv = mvrfConfigs.find(str(QName(ns1, "MgmtVrfGlobal")))
if mv != None:
mvrf_en_flag = mv.find(str(QName(ns, "mgmtVrfEnabled"))).text
mvrf["vrf_global"] = {"mgmtVrfEnabled": mvrf_en_flag}
mgmt_intf = {}
for mgmtintf in mgmtintfs.findall(str(QName(ns1, "ManagementIPInterface"))):
intfname = mgmtintf.find(str(QName(ns, "AttachTo"))).text
ipprefix = mgmtintf.find(str(QName(ns1, "PrefixStr"))).text
mgmtipn = ipaddress.ip_network(UNICODE_TYPE(ipprefix), False)
gwaddr = ipaddress.ip_address(next(mgmtipn.hosts()))
mgmt_intf[(intfname, ipprefix)] = {'gwaddr': gwaddr}
voqinbandintfs = child.find(str(QName(ns, "VoqInbandInterfaces")))
voq_inband_intfs = {}
if voqinbandintfs:
for voqintf in voqinbandintfs.findall(str(QName(ns1, "VoqInbandInterface"))):
intfname = voqintf.find(str(QName(ns, "Name"))).text
intftype = voqintf.find(str(QName(ns, "Type"))).text
ipprefix = voqintf.find(str(QName(ns1, "PrefixStr"))).text
if intfname not in voq_inband_intfs:
voq_inband_intfs[intfname] = {'inband_type': intftype}
voq_inband_intfs["%s|%s" % (intfname, ipprefix)] = {}
pcintfs = child.find(str(QName(ns, "PortChannelInterfaces")))
pc_intfs = []
pcs = {}
pc_members = {}
intfs_inpc = [] # List to hold all the LAG member interfaces
for pcintf in pcintfs.findall(str(QName(ns, "PortChannel"))):
pcintfname = pcintf.find(str(QName(ns, "Name"))).text
pcintfmbr = pcintf.find(str(QName(ns, "AttachTo"))).text
pcmbr_list = pcintfmbr.split(';')
pc_intfs.append(pcintfname)
for i, member in enumerate(pcmbr_list):
pcmbr_list[i] = port_alias_map.get(member, member)
intfs_inpc.append(pcmbr_list[i])
pc_members[(pcintfname, pcmbr_list[i])] = {'NULL': 'NULL'}
if pcintf.find(str(QName(ns, "Fallback"))) != None:
pcs[pcintfname] = {'members': pcmbr_list, 'fallback': pcintf.find(str(QName(ns, "Fallback"))).text, 'min_links': str(int(math.ceil(len() * 0.75)))}
else:
pcs[pcintfname] = {'members': pcmbr_list, 'min_links': str(int(math.ceil(len(pcmbr_list) * 0.75)))}
port_nhipv4_map = {}
port_nhipv6_map = {}
nhg_int = ""
nhportlist = []
dpg_ecmp_content = {}
static_routes = {}
ipnhs = child.find(str(QName(ns, "IPNextHops")))
if ipnhs is not None:
for ipnh in ipnhs.findall(str(QName(ns, "IPNextHop"))):
if ipnh.find(str(QName(ns, "Type"))).text == 'FineGrainedECMPGroupMember':
ipnhfmbr = ipnh.find(str(QName(ns, "AttachTo"))).text
ipnhaddr = ipnh.find(str(QName(ns, "Address"))).text
nhportlist.append(ipnhfmbr)
if "." in ipnhaddr:
port_nhipv4_map[ipnhfmbr] = ipnhaddr
elif ":" in ipnhaddr:
port_nhipv6_map[ipnhfmbr] = ipnhaddr
elif ipnh.find(str(QName(ns, "Type"))).text == 'StaticRoute':
prefix = ipnh.find(str(QName(ns, "AttachTo"))).text
nexthop = ipnh.find(str(QName(ns, "Address"))).text
static_routes[prefix] = {'nexthop': nexthop }
if port_nhipv4_map and port_nhipv6_map:
subnet_check_ip = list(port_nhipv4_map.values())[0]
for subnet_range in ip_intfs_map:
if ("." in subnet_range):
a = ipaddress.ip_address(UNICODE_TYPE(subnet_check_ip))
n = list(ipaddress.ip_network(UNICODE_TYPE(subnet_range), False).hosts())
if a in n:
nhg_int = ip_intfs_map[subnet_range]
ipv4_content = {"port_nhip_map": port_nhipv4_map, "nhg_int": nhg_int}
ipv6_content = {"port_nhip_map": port_nhipv6_map, "nhg_int": nhg_int}
dpg_ecmp_content['ipv4'] = ipv4_content
dpg_ecmp_content['ipv6'] = ipv6_content
vlanintfs = child.find(str(QName(ns, "VlanInterfaces")))
vlans = {}
vlan_members = {}
dhcp_relay_table = {}
vlantype_name = ""
intf_vlan_mbr = defaultdict(list)
for vintf in vlanintfs.findall(str(QName(ns, "VlanInterface"))):
vlanid = vintf.find(str(QName(ns, "VlanID"))).text
vintfmbr = vintf.find(str(QName(ns, "AttachTo"))).text
vmbr_list = vintfmbr.split(';')
for i, member in enumerate(vmbr_list):
intf_vlan_mbr[member].append(vlanid)
for vintf in vlanintfs.findall(str(QName(ns, "VlanInterface"))):
vintfname = vintf.find(str(QName(ns, "Name"))).text
vlanid = vintf.find(str(QName(ns, "VlanID"))).text
vintfmbr = vintf.find(str(QName(ns, "AttachTo"))).text
vlantype = vintf.find(str(QName(ns, "Type")))
if vlantype != None:
vlantype_name = vintf.find(str(QName(ns, "Type"))).text
vmbr_list = vintfmbr.split(';')
for i, member in enumerate(vmbr_list):
vmbr_list[i] = port_alias_map.get(member, member)
sonic_vlan_member_name = "Vlan%s" % (vlanid)
if vlantype_name == "Tagged":
vlan_members[(sonic_vlan_member_name, vmbr_list[i])] = {'tagging_mode': 'tagged'}
elif len(intf_vlan_mbr[member]) > 1:
vlan_members[(sonic_vlan_member_name, vmbr_list[i])] = {'tagging_mode': 'tagged'}
else:
vlan_members[(sonic_vlan_member_name, vmbr_list[i])] = {'tagging_mode': 'untagged'}
vlan_attributes = {'vlanid': vlanid, 'members': vmbr_list }
dhcp_attributes = {}
# If this VLAN requires a DHCP relay agent, it will contain a <DhcpRelays> element
# containing a list of DHCP server IPs
vintf_node = vintf.find(str(QName(ns, "DhcpRelays")))
if vintf_node is not None and vintf_node.text is not None:
vintfdhcpservers = vintf_node.text
vdhcpserver_list = vintfdhcpservers.split(';')
vlan_attributes['dhcp_servers'] = vdhcpserver_list
vintf_node = vintf.find(str(QName(ns, "Dhcpv6Relays")))
if vintf_node is not None and vintf_node.text is not None:
vintfdhcpservers = vintf_node.text
vdhcpserver_list = vintfdhcpservers.split(';')
vlan_attributes['dhcpv6_servers'] = vdhcpserver_list
dhcp_attributes['dhcpv6_servers'] = vdhcpserver_list
sonic_vlan_member_name = "Vlan%s" % (vlanid)
dhcp_relay_table[sonic_vlan_member_name] = dhcp_attributes
vlanmac = vintf.find(str(QName(ns, "MacAddress")))
if vlanmac is not None and vlanmac.text is not None:
vlan_attributes['mac'] = vlanmac.text
sonic_vlan_name = "Vlan%s" % vlanid
if sonic_vlan_name != vintfname:
vlan_attributes['alias'] = vintfname
vlans[sonic_vlan_name] = vlan_attributes
acls = {}
for aclintf in aclintfs.findall(str(QName(ns, "AclInterface"))):
if aclintf.find(str(QName(ns, "InAcl"))) is not None:
aclname = aclintf.find(str(QName(ns, "InAcl"))).text.upper().replace(" ", "_").replace("-", "_")
stage = "ingress"
elif aclintf.find(str(QName(ns, "OutAcl"))) is not None:
aclname = aclintf.find(str(QName(ns, "OutAcl"))).text.upper().replace(" ", "_").replace("-", "_")
stage = "egress"
else:
sys.exit("Error: 'AclInterface' must contain either an 'InAcl' or 'OutAcl' subelement.")
aclattach = aclintf.find(str(QName(ns, "AttachTo"))).text.split(';')
acl_intfs = []
is_mirror = False
is_mirror_v6 = False
is_mirror_dscp = False
# TODO: Ensure that acl_intfs will only ever contain front-panel interfaces (e.g.,
# maybe we should explicity ignore management and loopback interfaces?) because we
# decide an ACL is a Control Plane ACL if acl_intfs is empty below.
for member in aclattach:
member = member.strip()
if member in pcs:
# If try to attach ACL to a LAG interface then we shall add the LAG to
# to acl_intfs directly instead of break it into member ports, ACL attach
# to LAG will be applied to all the LAG members internally by SAI/SDK
acl_intfs.append(member)
elif member in vlans:
# For egress ACL attaching to vlan, we break them into vlan members
if stage == "egress":
acl_intfs.extend(vlans[member]['members'])
else:
acl_intfs.append(member)
elif member in port_alias_map:
acl_intfs.append(port_alias_map[member])
# Give a warning if trying to attach ACL to a LAG member interface, correct way is to attach ACL to the LAG interface
if port_alias_map[member] in intfs_inpc:
print("Warning: ACL " + aclname + " is attached to a LAG member interface " + port_alias_map[member] + ", instead of LAG interface", file=sys.stderr)
elif member.lower().startswith('erspan') or member.lower().startswith('egress_erspan') or member.lower().startswith('erspan_dscp'):
if 'dscp' in member.lower():
is_mirror_dscp = True
elif member.lower().startswith('erspanv6') or member.lower().startswith('egress_erspanv6'):
is_mirror_v6 = True
else:
is_mirror = True
# Erspan session will be attached to all front panel ports
# initially. If panel ports is a member port of LAG, then
# the LAG will be added to acl table instead of the panel
# ports. Non-active ports will be removed from this list
# later after the rest of the minigraph has been parsed.
acl_intfs = pc_intfs[:]
for panel_port in port_alias_map.values():
# because of port_alias_asic_map we can have duplicate in port_alias_map
# so check if already present do not add
if panel_port not in intfs_inpc and panel_port not in acl_intfs:
acl_intfs.append(panel_port)
break
# if acl is classified as mirror (erpsan) or acl interface
# are binded then do not classify as Control plane.
# For multi-asic platforms it's possible there is no
# interface are binded to everflow in host namespace.
if acl_intfs or is_mirror_v6 or is_mirror or is_mirror_dscp:
# Remove duplications
dedup_intfs = []
for intf in acl_intfs:
if intf not in dedup_intfs:
dedup_intfs.append(intf)
acls[aclname] = {'policy_desc': aclname,
'stage': stage,
'ports': dedup_intfs}
if is_mirror:
acls[aclname]['type'] = 'MIRROR'
elif is_mirror_v6:
acls[aclname]['type'] = 'MIRRORV6'
elif is_mirror_dscp:
acls[aclname]['type'] = 'MIRROR_DSCP'
else:
acls[aclname]['type'] = 'L3V6' if 'v6' in aclname.lower() else 'L3'
else:
# This ACL has no interfaces to attach to -- consider this a control plane ACL
try:
aclservice = aclintf.find(str(QName(ns, "Type"))).text
# If we already have an ACL with this name and this ACL is bound to a different service,
# append the service to our list of services
if aclname in acls:
if acls[aclname]['type'] != 'CTRLPLANE':
print("Warning: ACL '%s' type mismatch. Not updating ACL." % aclname, file=sys.stderr)
elif acls[aclname]['services'] == aclservice:
print("Warning: ACL '%s' already contains service '%s'. Not updating ACL." % (aclname, aclservice), file=sys.stderr)
else:
acls[aclname]['services'].append(aclservice)
else:
acls[aclname] = {'policy_desc': aclname,
'type': 'CTRLPLANE',
'stage': stage,
'services': [aclservice]}
except:
print("Warning: Ignoring Control Plane ACL %s without type" % aclname, file=sys.stderr)
mg_tunnels = child.find(str(QName(ns, "TunnelInterfaces")))
if mg_tunnels is not None:
table_key_to_mg_key_map = {"encap_ecn_mode": "EcnEncapsulationMode",
"ecn_mode": "EcnDecapsulationMode",
"dscp_mode": "DifferentiatedServicesCodePointMode",
"ttl_mode": "TtlMode"}
for mg_tunnel in mg_tunnels.findall(str(QName(ns, "TunnelInterface"))):
tunnel_type = mg_tunnel.attrib["Type"]
tunnel_name = mg_tunnel.attrib["Name"]
tunnelintfs[tunnel_type][tunnel_name] = {
"tunnel_type": mg_tunnel.attrib["Type"].upper(),
}
for table_key, mg_key in table_key_to_mg_key_map.items():
# If the minigraph has the key, add the corresponding config DB key to the table
if mg_key in mg_tunnel.attrib:
tunnelintfs[tunnel_type][tunnel_name][table_key] = mg_tunnel.attrib[mg_key]
return intfs, lo_intfs, mvrf, mgmt_intf, voq_inband_intfs, vlans, vlan_members, dhcp_relay_table, pcs, pc_members, acls, vni, tunnelintfs, dpg_ecmp_content, static_routes
return None, None, None, None, None, None, None, None, None, None, None, None, None, None, None
def parse_host_loopback(dpg, hname):
for child in dpg:
hostname = child.find(str(QName(ns, "Hostname")))
if hostname.text.lower() != hname.lower():
continue
lo_intfs = parse_loopback_intf(child)
return lo_intfs
def parse_cpg(cpg, hname, local_devices=[]):
bgp_sessions = {}
bgp_internal_sessions = {}
bgp_voq_chassis_sessions = {}
myasn = None
bgp_peers_with_range = {}
for child in cpg:
tag = child.tag
if tag == str(QName(ns, "PeeringSessions")):
for session in child.findall(str(QName(ns, "BGPSession"))):
start_router = session.find(str(QName(ns, "StartRouter"))).text
start_peer = session.find(str(QName(ns, "StartPeer"))).text
end_router = session.find(str(QName(ns, "EndRouter"))).text
end_peer = session.find(str(QName(ns, "EndPeer"))).text
rrclient = 1 if session.find(str(QName(ns, "RRClient"))) is not None else 0
if session.find(str(QName(ns, "HoldTime"))) is not None:
holdtime = session.find(str(QName(ns, "HoldTime"))).text
else:
holdtime = 180
if session.find(str(QName(ns, "KeepAliveTime"))) is not None:
keepalive = session.find(str(QName(ns, "KeepAliveTime"))).text
else:
keepalive = 60
nhopself = 1 if session.find(str(QName(ns, "NextHopSelf"))) is not None else 0
# choose the right table and admin_status for the peer
chassis_internal_ibgp = session.find(str(QName(ns, "ChassisInternal")))
if chassis_internal_ibgp is not None and chassis_internal_ibgp.text == "voq":
table = bgp_voq_chassis_sessions
admin_status = 'up'
elif chassis_internal_ibgp is not None and chassis_internal_ibgp.text == "chassis-packet":
table = bgp_internal_sessions
admin_status = 'up'
elif end_router.lower() in local_devices and start_router.lower() in local_devices:
table = bgp_internal_sessions
admin_status = 'up'
else:
table = bgp_sessions
admin_status = None
if end_router.lower() == hname.lower():
table[start_peer.lower()] = {
'name': start_router,
'local_addr': end_peer.lower(),
'rrclient': rrclient,
'holdtime': holdtime,
'keepalive': keepalive,
'nhopself': nhopself
}
if admin_status:
table[start_peer.lower()]['admin_status'] = admin_status
elif start_router.lower() == hname.lower():
table[end_peer.lower()] = {
'name': end_router,
'local_addr': start_peer.lower(),
'rrclient': rrclient,
'holdtime': holdtime,
'keepalive': keepalive,
'nhopself': nhopself
}
if admin_status:
table[end_peer.lower()]['admin_status'] = admin_status
elif child.tag == str(QName(ns, "Routers")):
for router in child.findall(str(QName(ns1, "BGPRouterDeclaration"))):
asn = router.find(str(QName(ns1, "ASN"))).text
hostname = router.find(str(QName(ns1, "Hostname"))).text
if hostname.lower() == hname.lower():
myasn = asn
peers = router.find(str(QName(ns1, "Peers")))
for bgpPeer in peers.findall(str(QName(ns, "BGPPeer"))):
addr = bgpPeer.find(str(QName(ns, "Address"))).text
if bgpPeer.find(str(QName(ns1, "PeersRange"))) is not None: # FIXME: is better to check for type BGPPeerPassive
name = bgpPeer.find(str(QName(ns1, "Name"))).text
ip_range = bgpPeer.find(str(QName(ns1, "PeersRange"))).text
ip_range_group = ip_range.split(';') if ip_range and ip_range != "" else []
bgp_peers_with_range[name] = {
'name': name,
'ip_range': ip_range_group
}
if bgpPeer.find(str(QName(ns, "Address"))) is not None:
bgp_peers_with_range[name]['src_address'] = bgpPeer.find(str(QName(ns, "Address"))).text
if bgpPeer.find(str(QName(ns1, "PeerAsn"))) is not None:
bgp_peers_with_range[name]['peer_asn'] = bgpPeer.find(str(QName(ns1, "PeerAsn"))).text
else:
for peer in bgp_sessions:
bgp_session = bgp_sessions[peer]
if hostname.lower() == bgp_session['name'].lower():
bgp_session['asn'] = asn
for peer in bgp_internal_sessions:
bgp_internal_session = bgp_internal_sessions[peer]
if hostname.lower() == bgp_internal_session['name'].lower():
bgp_internal_session['asn'] = asn
for peer in bgp_voq_chassis_sessions:
bgp_session = bgp_voq_chassis_sessions[peer]
if hostname.lower() == bgp_session['name'].lower():
bgp_session['asn'] = asn
bgp_monitors = { key: bgp_sessions[key] for key in bgp_sessions if 'asn' in bgp_sessions[key] and bgp_sessions[key]['name'] == 'BGPMonitor' }
def filter_bad_asn(table):
return { key: table[key] for key in table if 'asn' in table[key] and int(table[key]['asn']) != 0 }
bgp_sessions = filter_bad_asn(bgp_sessions)
bgp_internal_sessions = filter_bad_asn(bgp_internal_sessions)
bgp_voq_chassis_sessions = filter_bad_asn(bgp_voq_chassis_sessions)
return bgp_sessions, bgp_internal_sessions, bgp_voq_chassis_sessions, myasn, bgp_peers_with_range, bgp_monitors
def parse_meta(meta, hname):
syslog_servers = []
dhcp_servers = []
dhcpv6_servers = []
ntp_servers = []
tacacs_servers = []
mgmt_routes = []
erspan_dst = []
deployment_id = None
region = None
cloudtype = None
resource_type = None
downstream_subrole = None
switch_id = None
switch_type = None
max_cores = None
kube_data = {}
device_metas = meta.find(str(QName(ns, "Devices")))
for device in device_metas.findall(str(QName(ns1, "DeviceMetadata"))):
if device.find(str(QName(ns1, "Name"))).text.lower() == hname.lower():
properties = device.find(str(QName(ns1, "Properties")))
for device_property in properties.findall(str(QName(ns1, "DeviceProperty"))):
name = device_property.find(str(QName(ns1, "Name"))).text
value = device_property.find(str(QName(ns1, "Value"))).text
value_group = value.strip().split(';') if value and value != "" else []
if name == "DhcpResources":
dhcp_servers = value_group
elif name == "NtpResources":
ntp_servers = value_group
elif name == "SyslogResources":
syslog_servers = value_group
elif name == "TacacsServer":
tacacs_servers = value_group
elif name == "ForcedMgmtRoutes":
mgmt_routes = value_group
elif name == "ErspanDestinationIpv4":
erspan_dst = value_group
elif name == "DeploymentId":
deployment_id = value
elif name == "Region":
region = value
elif name == "CloudType":
cloudtype = value
elif name == "ResourceType":
resource_type = value
elif name == "DownStreamSubRole":
downstream_subrole = value
elif name == "SwitchId":
switch_id = value
elif name == "SwitchType":
switch_type = value
elif name == "MaxCores":
max_cores = value
elif name == "KubernetesEnabled":
kube_data["enable"] = value
elif name == "KubernetesServerIp":
kube_data["ip"] = value
return syslog_servers, dhcp_servers, dhcpv6_servers, ntp_servers, tacacs_servers, mgmt_routes, erspan_dst, deployment_id, region, cloudtype, resource_type, downstream_subrole, switch_id, switch_type, max_cores, kube_data
def parse_linkmeta(meta, hname):
link = meta.find(str(QName(ns, "Link")))
linkmetas = {}
for linkmeta in link.findall(str(QName(ns1, "LinkMetadata"))):
port = None
fec_disabled = None
# Sample: ARISTA05T1:Ethernet1/33;switch-t0:fortyGigE0/4
key = linkmeta.find(str(QName(ns1, "Key"))).text
endpoints = key.split(';')
for endpoint in endpoints:
t = endpoint.split(':')
if len(t) == 2 and t[0].lower() == hname.lower():
port = t[1]
break
else:
# Cannot find a matching hname, something went wrong
continue
has_peer_switch = False
upper_tor_hostname = ''
lower_tor_hostname = ''
auto_negotiation = None
properties = linkmeta.find(str(QName(ns1, "Properties")))
for device_property in properties.findall(str(QName(ns1, "DeviceProperty"))):
name = device_property.find(str(QName(ns1, "Name"))).text
value = device_property.find(str(QName(ns1, "Value"))).text
if name == "FECDisabled":
fec_disabled = value
elif name == "GeminiPeeringLink":
has_peer_switch = True
elif name == "UpperTOR":
upper_tor_hostname = value
elif name == "LowerTOR":
lower_tor_hostname = value
elif name == "AutoNegotiation":
auto_negotiation = value
linkmetas[port] = {}
if fec_disabled:
linkmetas[port]["FECDisabled"] = fec_disabled
if has_peer_switch:
if upper_tor_hostname == hname:
linkmetas[port]["PeerSwitch"] = lower_tor_hostname
else:
linkmetas[port]["PeerSwitch"] = upper_tor_hostname
if auto_negotiation:
linkmetas[port]["AutoNegotiation"] = auto_negotiation
return linkmetas
def parse_asic_meta(meta, hname):
sub_role = None
switch_id = None
switch_type = None
max_cores = None
device_metas = meta.find(str(QName(ns, "Devices")))
for device in device_metas.findall(str(QName(ns1, "DeviceMetadata"))):
if device.find(str(QName(ns1, "Name"))).text.lower() == hname.lower():
properties = device.find(str(QName(ns1, "Properties")))
for device_property in properties.findall(str(QName(ns1, "DeviceProperty"))):
name = device_property.find(str(QName(ns1, "Name"))).text
value = device_property.find(str(QName(ns1, "Value"))).text
if name == "SubRole":
sub_role = value
elif name == "SwitchId":
switch_id = value
elif name == "SwitchType":
switch_type = value
elif name == "MaxCores":
max_cores = value
return sub_role, switch_id, switch_type, max_cores
def parse_deviceinfo(meta, hwsku):
port_speeds = {}
port_descriptions = {}
for device_info in meta.findall(str(QName(ns, "DeviceInfo"))):
dev_sku = device_info.find(str(QName(ns, "HwSku"))).text
if dev_sku == hwsku:
interfaces = device_info.find(str(QName(ns, "EthernetInterfaces"))).findall(str(QName(ns1, "EthernetInterface")))
interfaces = interfaces + device_info.find(str(QName(ns, "ManagementInterfaces"))).findall(str(QName(ns1, "ManagementInterface")))
for interface in interfaces:
alias = interface.find(str(QName(ns, "InterfaceName"))).text
speed = interface.find(str(QName(ns, "Speed"))).text
desc = interface.find(str(QName(ns, "Description")))
if desc != None:
port_descriptions[port_alias_map.get(alias, alias)] = desc.text
port_speeds[port_alias_map.get(alias, alias)] = speed
sysports = device_info.find(str(QName(ns, "SystemPorts")))
sys_ports = {}
if sysports is not None:
for sysport in sysports.findall(str(QName(ns, "SystemPort"))):
portname = sysport.find(str(QName(ns, "Name"))).text
hostname = sysport.find(str(QName(ns, "Hostname")))
asic_name = sysport.find(str(QName(ns, "AsicName")))
system_port_id = sysport.find(str(QName(ns, "SystemPortId"))).text
switch_id = sysport.find(str(QName(ns, "SwitchId"))).text
core_id = sysport.find(str(QName(ns, "CoreId"))).text
core_port_id = sysport.find(str(QName(ns, "CorePortId"))).text
speed = sysport.find(str(QName(ns, "Speed"))).text
num_voq = sysport.find(str(QName(ns, "NumVoq"))).text
key = portname
if asic_name is not None:
key = "%s|%s" % (asic_name.text, key)
if hostname is not None:
key = "%s|%s" % (hostname.text, key)
sys_ports[key] = {"system_port_id": system_port_id, "switch_id": switch_id, "core_index": core_id, "core_port_index": core_port_id, "speed": speed, "num_voq": num_voq}
return port_speeds, port_descriptions, sys_ports