Neutron shared routines and utilities.
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# Copyright (c) 2012 OpenStack Foundation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# TODO(salv-orlando): Verify if a single set of operational
# status constants is achievable
NET_STATUS_ACTIVE = 'ACTIVE'
NET_STATUS_BUILD = 'BUILD'
NET_STATUS_DOWN = 'DOWN'
NET_STATUS_ERROR = 'ERROR'
PORT_STATUS_ACTIVE = 'ACTIVE'
PORT_STATUS_BUILD = 'BUILD'
PORT_STATUS_DOWN = 'DOWN'
PORT_STATUS_ERROR = 'ERROR'
PORT_STATUS_NOTAPPLICABLE = 'N/A'
FLOATINGIP_STATUS_ACTIVE = 'ACTIVE'
FLOATINGIP_STATUS_DOWN = 'DOWN'
FLOATINGIP_STATUS_ERROR = 'ERROR'
# Service operation status constants
ACTIVE = "ACTIVE"
DOWN = "DOWN"
CREATED = "CREATED"
PENDING_CREATE = "PENDING_CREATE"
PENDING_UPDATE = "PENDING_UPDATE"
PENDING_DELETE = "PENDING_DELETE"
INACTIVE = "INACTIVE"
ERROR = "ERROR"
DEVICE_OWNER_COMPUTE_PREFIX = "compute:"
DEVICE_OWNER_NETWORK_PREFIX = "network:"
DEVICE_OWNER_NEUTRON_PREFIX = "neutron:"
DEVICE_OWNER_BAREMETAL_PREFIX = "baremetal:"
DEVICE_OWNER_ROUTER_HA_INTF = (DEVICE_OWNER_NETWORK_PREFIX +
"router_ha_interface")
DEVICE_OWNER_HA_REPLICATED_INT = (DEVICE_OWNER_NETWORK_PREFIX +
"ha_router_replicated_interface")
DEVICE_OWNER_ROUTER_INTF = DEVICE_OWNER_NETWORK_PREFIX + "router_interface"
DEVICE_OWNER_ROUTER_GW = DEVICE_OWNER_NETWORK_PREFIX + "router_gateway"
DEVICE_OWNER_FLOATINGIP = DEVICE_OWNER_NETWORK_PREFIX + "floatingip"
DEVICE_OWNER_DHCP = DEVICE_OWNER_NETWORK_PREFIX + "dhcp"
DEVICE_OWNER_DVR_INTERFACE = (DEVICE_OWNER_NETWORK_PREFIX +
"router_interface_distributed")
DEVICE_OWNER_AGENT_GW = (DEVICE_OWNER_NETWORK_PREFIX +
"floatingip_agent_gateway")
DEVICE_OWNER_ROUTER_SNAT = (DEVICE_OWNER_NETWORK_PREFIX +
"router_centralized_snat")
DEVICE_OWNER_LOADBALANCER = DEVICE_OWNER_NEUTRON_PREFIX + "LOADBALANCER"
DEVICE_OWNER_LOADBALANCERV2 = DEVICE_OWNER_NEUTRON_PREFIX + "LOADBALANCERV2"
DEVICE_OWNER_PREFIXES = (DEVICE_OWNER_NETWORK_PREFIX,
DEVICE_OWNER_NEUTRON_PREFIX)
# Collection used to identify devices owned by router interfaces.
# DEVICE_OWNER_ROUTER_HA_INTF is a special case and so is not included.
ROUTER_INTERFACE_OWNERS = (DEVICE_OWNER_ROUTER_INTF,
DEVICE_OWNER_HA_REPLICATED_INT,
DEVICE_OWNER_DVR_INTERFACE)
ROUTER_INTERFACE_OWNERS_SNAT = (DEVICE_OWNER_ROUTER_INTF,
DEVICE_OWNER_HA_REPLICATED_INT,
DEVICE_OWNER_DVR_INTERFACE,
DEVICE_OWNER_ROUTER_SNAT)
DEVICE_ID_RESERVED_DHCP_PORT = 'reserved_dhcp_port'
FLOATINGIP_KEY = '_floatingips'
INTERFACE_KEY = '_interfaces'
HA_INTERFACE_KEY = '_ha_interface'
IPv4 = 'IPv4'
IPv6 = 'IPv6'
IP_VERSION_4 = 4
IP_VERSION_6 = 6
IPv4_BITS = 32
IPv6_BITS = 128
INVALID_MAC_ADDRESSES = ['00:00:00:00:00:00', 'FF:FF:FF:FF:FF:FF']
IPv4_ANY = '0.0.0.0/0'
IPv6_ANY = '::/0'
IP_ANY = {IP_VERSION_4: IPv4_ANY, IP_VERSION_6: IPv6_ANY}
IPv6_LLA_PREFIX = 'fe80::/64'
DHCP_RESPONSE_PORT = 68
DHCPV6_CLIENT_PORT = 546
FLOODING_ENTRY = ('00:00:00:00:00:00', '0.0.0.0')
AGENT_TYPE_DHCP = 'DHCP agent'
AGENT_TYPE_OVS = 'Open vSwitch agent'
AGENT_TYPE_LINUXBRIDGE = 'Linux bridge agent'
AGENT_TYPE_OFA = 'OFA driver agent'
AGENT_TYPE_L3 = 'L3 agent'
AGENT_TYPE_LOADBALANCER = 'Loadbalancer agent'
AGENT_TYPE_METERING = 'Metering agent'
AGENT_TYPE_METADATA = 'Metadata agent'
AGENT_TYPE_NIC_SWITCH = 'NIC Switch agent'
AGENT_TYPE_MACVTAP = 'Macvtap agent'
L2_AGENT_TOPIC = 'N/A'
L3_AGENT_MODE_DVR = 'dvr'
L3_AGENT_MODE_DVR_SNAT = 'dvr_snat'
L3_AGENT_MODE_LEGACY = 'legacy'
L3_AGENT_MODE = 'agent_mode'
L3_AGENT_MODE_DVR_NO_EXTERNAL = 'dvr_no_external'
DVR_SNAT_BOUND = 'dvr_snat_bound'
PORT_BINDING_EXT_ALIAS = 'binding'
L3_AGENT_SCHEDULER_EXT_ALIAS = 'l3_agent_scheduler'
DHCP_AGENT_SCHEDULER_EXT_ALIAS = 'dhcp_agent_scheduler'
LBAAS_AGENT_SCHEDULER_EXT_ALIAS = 'lbaas_agent_scheduler'
L3_DISTRIBUTED_EXT_ALIAS = 'dvr'
L3_HA_MODE_EXT_ALIAS = 'l3-ha'
SUBNET_ALLOCATION_EXT_ALIAS = 'subnet_allocation'
# Protocol names and numbers for Security Groups/Firewalls
PROTO_NAME_AH = 'ah'
PROTO_NAME_DCCP = 'dccp'
PROTO_NAME_EGP = 'egp'
PROTO_NAME_ESP = 'esp'
PROTO_NAME_GRE = 'gre'
PROTO_NAME_ICMP = 'icmp'
PROTO_NAME_IGMP = 'igmp'
PROTO_NAME_IPIP = 'ipip'
PROTO_NAME_IPV6_ENCAP = 'ipv6-encap'
PROTO_NAME_IPV6_FRAG = 'ipv6-frag'
PROTO_NAME_IPV6_ICMP = 'ipv6-icmp'
# For backward-compatibility of security group rule API, we keep the old value
# for IPv6 ICMP. It should be clean up in the future.
PROTO_NAME_IPV6_ICMP_LEGACY = 'icmpv6'
PROTO_NAME_IPV6_NONXT = 'ipv6-nonxt'
PROTO_NAME_IPV6_OPTS = 'ipv6-opts'
PROTO_NAME_IPV6_ROUTE = 'ipv6-route'
PROTO_NAME_OSPF = 'ospf'
PROTO_NAME_PGM = 'pgm'
PROTO_NAME_RSVP = 'rsvp'
PROTO_NAME_SCTP = 'sctp'
PROTO_NAME_TCP = 'tcp'
PROTO_NAME_UDP = 'udp'
PROTO_NAME_UDPLITE = 'udplite'
PROTO_NAME_VRRP = 'vrrp'
PROTO_NUM_AH = 51
PROTO_NUM_DCCP = 33
PROTO_NUM_EGP = 8
PROTO_NUM_ESP = 50
PROTO_NUM_GRE = 47
PROTO_NUM_ICMP = 1
PROTO_NUM_IGMP = 2
PROTO_NUM_IPIP = 4
PROTO_NUM_IPV6_ENCAP = 41
PROTO_NUM_IPV6_FRAG = 44
PROTO_NUM_IPV6_ICMP = 58
PROTO_NUM_IPV6_NONXT = 59
PROTO_NUM_IPV6_OPTS = 60
PROTO_NUM_IPV6_ROUTE = 43
PROTO_NUM_OSPF = 89
PROTO_NUM_PGM = 113
PROTO_NUM_RSVP = 46
PROTO_NUM_SCTP = 132
PROTO_NUM_TCP = 6
PROTO_NUM_UDP = 17
PROTO_NUM_UDPLITE = 136
PROTO_NUM_VRRP = 112
IP_PROTOCOL_MAP = {PROTO_NAME_AH: PROTO_NUM_AH,
PROTO_NAME_DCCP: PROTO_NUM_DCCP,
PROTO_NAME_EGP: PROTO_NUM_EGP,
PROTO_NAME_ESP: PROTO_NUM_ESP,
PROTO_NAME_GRE: PROTO_NUM_GRE,
PROTO_NAME_ICMP: PROTO_NUM_ICMP,
PROTO_NAME_IGMP: PROTO_NUM_IGMP,
PROTO_NAME_IPIP: PROTO_NUM_IPIP,
PROTO_NAME_IPV6_ENCAP: PROTO_NUM_IPV6_ENCAP,
PROTO_NAME_IPV6_FRAG: PROTO_NUM_IPV6_FRAG,
PROTO_NAME_IPV6_ICMP: PROTO_NUM_IPV6_ICMP,
# For backward-compatibility of security group rule API
PROTO_NAME_IPV6_ICMP_LEGACY: PROTO_NUM_IPV6_ICMP,
PROTO_NAME_IPV6_NONXT: PROTO_NUM_IPV6_NONXT,
PROTO_NAME_IPV6_OPTS: PROTO_NUM_IPV6_OPTS,
PROTO_NAME_IPV6_ROUTE: PROTO_NUM_IPV6_ROUTE,
PROTO_NAME_OSPF: PROTO_NUM_OSPF,
PROTO_NAME_PGM: PROTO_NUM_PGM,
PROTO_NAME_RSVP: PROTO_NUM_RSVP,
PROTO_NAME_SCTP: PROTO_NUM_SCTP,
PROTO_NAME_TCP: PROTO_NUM_TCP,
PROTO_NAME_UDP: PROTO_NUM_UDP,
PROTO_NAME_UDPLITE: PROTO_NUM_UDPLITE,
PROTO_NAME_VRRP: PROTO_NUM_VRRP}
# Note that this differs from IP_PROTOCOL_MAP because iptables refers to IPv6
# ICMP as 'icmp6' whereas it is 'ipv6-icmp' in IP_PROTOCOL_MAP.
IPTABLES_PROTOCOL_MAP = {PROTO_NAME_DCCP: 'dccp',
PROTO_NAME_ICMP: 'icmp',
PROTO_NAME_IPV6_ICMP: 'icmp6',
PROTO_NAME_SCTP: 'sctp',
PROTO_NAME_TCP: 'tcp',
PROTO_NAME_UDP: 'udp'}
# IP header length
IP_HEADER_LENGTH = {
4: 20,
6: 40,
}
# ICMPv6 types:
# Destination Unreachable (1)
ICMPV6_TYPE_DEST_UNREACH = 1
# Packet Too Big (2)
ICMPV6_TYPE_PKT_TOOBIG = 2
# Time Exceeded (3)
ICMPV6_TYPE_TIME_EXCEED = 3
# Parameter Problem (4)
ICMPV6_TYPE_PARAMPROB = 4
# Echo Request (128)
ICMPV6_TYPE_ECHO_REQUEST = 128
# Echo Reply (129)
ICMPV6_TYPE_ECHO_REPLY = 129
# Multicast Listener Query (130)
ICMPV6_TYPE_MLD_QUERY = 130
# Multicast Listener Report (131)
ICMPV6_TYPE_MLD_REPORT = 131
# Multicast Listener Done (132)
ICMPV6_TYPE_MLD_DONE = 132
# Router Solicitation (133)
ICMPV6_TYPE_RS = 133
# Router Advertisement (134)
ICMPV6_TYPE_RA = 134
# Neighbor Solicitation (135)
ICMPV6_TYPE_NS = 135
# Neighbor Advertisement (136)
ICMPV6_TYPE_NA = 136
# Multicast Listener v2 Report (143)
ICMPV6_TYPE_MLD2_REPORT = 143
# List of ICMPv6 types that should be allowed from the unspecified address for
# Duplicate Address Detection:
ICMPV6_ALLOWED_UNSPEC_ADDR_TYPES = [ICMPV6_TYPE_MLD_REPORT,
ICMPV6_TYPE_NS,
ICMPV6_TYPE_MLD2_REPORT]
# Human-readable ID to which the subnetpool ID should be set to
# indicate that IPv6 Prefix Delegation is enabled for a given subnetpool
IPV6_PD_POOL_ID = 'prefix_delegation'
# Device names start with "tap"
TAP_DEVICE_PREFIX = 'tap'
# Device names start with "macvtap"
MACVTAP_DEVICE_PREFIX = 'macvtap'
# Linux interface max length
DEVICE_NAME_MAX_LEN = 15
# Time format
ISO8601_TIME_FORMAT = '%Y-%m-%dT%H:%M:%S.%f'
DHCPV6_STATEFUL = 'dhcpv6-stateful'
DHCPV6_STATELESS = 'dhcpv6-stateless'
IPV6_SLAAC = 'slaac'
IPV6_MODES = [DHCPV6_STATEFUL, DHCPV6_STATELESS, IPV6_SLAAC]
ACTIVE_PENDING_STATUSES = (
ACTIVE,
PENDING_CREATE,
PENDING_UPDATE
)
# Network Type constants
TYPE_FLAT = 'flat'
TYPE_GENEVE = 'geneve'
TYPE_GRE = 'gre'
TYPE_LOCAL = 'local'
TYPE_VXLAN = 'vxlan'
TYPE_VLAN = 'vlan'
TYPE_NONE = 'none'
# List of supported network segment range types
NETWORK_SEGMENT_RANGE_TYPES = [TYPE_VLAN, TYPE_VXLAN, TYPE_GRE, TYPE_GENEVE]
# Values for network_type
# For VLAN Network
MIN_VLAN_TAG = 1
MAX_VLAN_TAG = 4094
# For Geneve Tunnel
MIN_GENEVE_VNI = 1
MAX_GENEVE_VNI = 2 ** 24 - 1
# For GRE Tunnel
MIN_GRE_ID = 1
MAX_GRE_ID = 2 ** 32 - 1
# For VXLAN Tunnel
MIN_VXLAN_VNI = 1
MAX_VXLAN_VNI = 2 ** 24 - 1
VXLAN_UDP_PORT = 4789
# Overlay (tunnel) protocol overhead
GENEVE_ENCAP_MIN_OVERHEAD = 30
GRE_ENCAP_OVERHEAD = 22
VXLAN_ENCAP_OVERHEAD = 30
# For DNS extension
DNS_DOMAIN_DEFAULT = 'openstacklocal.'
DNS_LABEL_MAX_LEN = 63
DNS_LABEL_REGEX = "^[a-z0-9-]{1,%d}$" % DNS_LABEL_MAX_LEN
# max value for TCP, UDP, SCTP ports
PORT_MAX = 2**16 - 1
VALID_DSCP_MARKS = [0, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34,
36, 38, 40, 46, 48, 56]
INGRESS_DIRECTION = 'ingress'
EGRESS_DIRECTION = 'egress'
VALID_DIRECTIONS = (INGRESS_DIRECTION, EGRESS_DIRECTION)
PROVISIONAL_IPV6_PD_PREFIX = '::/64'
# Traffic control
TC_QDISC_TYPE_HTB = 'htb'
TC_QDISC_TYPE_TBF = 'tbf'
TC_QDISC_TYPE_INGRESS = 'ingress'
TC_QDISC_TYPES = (TC_QDISC_TYPE_HTB, TC_QDISC_TYPE_TBF, TC_QDISC_TYPE_INGRESS)
TC_QDISC_INGRESS_ID = 'ffff:'
TC_QDISC_PARENTS = {'root': 0xffffffff,
'ingress': 0xfffffff1}
class Sentinel(object):
"""A constant object that does not change even when copied."""
def __deepcopy__(self, memo):
# Always return the same object because this is essentially a constant.
return self
def __copy__(self):
# called via copy.copy(x)
return self
#############################
# Attribute related constants
#############################
ATTR_NOT_SPECIFIED = Sentinel()
DICT_POPULATE_DEFAULTS = 'dict_populate_defaults'
HEX_ELEM = '[0-9A-Fa-f]'
UUID_PATTERN = '-'.join([HEX_ELEM + '{8}', HEX_ELEM + '{4}',
HEX_ELEM + '{4}', HEX_ELEM + '{4}',
HEX_ELEM + '{12}'])
SHARED = 'shared'
##########################
# Device related constants
##########################
# vhost-user device names start with "vhu"
VHOST_USER_DEVICE_PREFIX = 'vhu'
# The vswitch side of a veth pair for a nova iptables filter setup
VETH_DEVICE_PREFIX = 'qvo'
# prefix for SNAT interface in DVR
SNAT_INT_DEV_PREFIX = 'sg-'
ROUTER_PORT_OWNERS = ROUTER_INTERFACE_OWNERS_SNAT + (DEVICE_OWNER_ROUTER_GW,)
ROUTER_STATUS_ACTIVE = 'ACTIVE'
ROUTER_STATUS_ALLOCATING = 'ALLOCATING'
ROUTER_STATUS_ERROR = 'ERROR'
VALID_ROUTER_STATUS = (ROUTER_STATUS_ACTIVE,
ROUTER_STATUS_ALLOCATING,
ROUTER_STATUS_ERROR)
HA_ROUTER_STATE_KEY = '_ha_state'
METERING_LABEL_KEY = '_metering_labels'
FLOATINGIP_AGENT_INTF_KEY = '_floatingip_agent_interfaces'
SNAT_ROUTER_INTF_KEY = '_snat_router_interfaces'
HA_NETWORK_NAME = 'HA network tenant %s'
HA_SUBNET_NAME = 'HA subnet tenant %s'
HA_PORT_NAME = 'HA port tenant %s'
HA_ROUTER_STATE_ACTIVE = 'active'
HA_ROUTER_STATE_STANDBY = 'standby'
HA_ROUTER_STATE_UNKNOWN = 'unknown'
VALID_HA_STATES = (HA_ROUTER_STATE_ACTIVE, HA_ROUTER_STATE_STANDBY,
HA_ROUTER_STATE_UNKNOWN)
PAGINATION_INFINITE = 'infinite'
SORT_DIRECTION_ASC = 'asc'
SORT_DIRECTION_DESC = 'desc'
ETHERTYPE_NAME_ARP = 'arp'
ETHERTYPE_ARP = 0x0806
ETHERTYPE_IP = 0x0800
ETHERTYPE_IPV6 = 0x86DD
IP_PROTOCOL_NAME_ALIASES = {PROTO_NAME_IPV6_ICMP_LEGACY:
PROTO_NAME_IPV6_ICMP}
IP_PROTOCOL_NUM_TO_NAME_MAP = {str(v): k for k, v in IP_PROTOCOL_MAP.items()}
# When using iptables-save we specify '-p {proto}',
# but sometimes those values are not identical. This is a map
# of known protocol numbers that require a name to be used and
# protocol names that require a different name to be used,
# because that is how iptables-save will display them.
#
# This is how the list was created, so there is a possibility
# it will need to be updated in the future:
#
# $ for num in {0..255}; do iptables -A INPUT -p $num; done
# $ iptables-save
#
# These cases are special, and were found by inspection:
# - 'ipv6-encap' uses 'ipv6'
# - 'icmpv6' uses 'ipv6-icmp'
# - 'pgm' uses '113' instead of its name
# - protocol '0' uses no -p argument
IPTABLES_PROTOCOL_NAME_MAP = {PROTO_NAME_IPV6_ENCAP: 'ipv6',
PROTO_NAME_IPV6_ICMP_LEGACY:
'ipv6-icmp',
PROTO_NAME_PGM: '113',
'0': None,
'1': 'icmp',
'2': 'igmp',
'3': 'ggp',
'4': 'ipencap',
'5': 'st',
'6': 'tcp',
'8': 'egp',
'9': 'igp',
'12': 'pup',
'17': 'udp',
'20': 'hmp',
'22': 'xns-idp',
'27': 'rdp',
'29': 'iso-tp4',
'33': 'dccp',
'36': 'xtp',
'37': 'ddp',
'38': 'idpr-cmtp',
'41': 'ipv6',
'43': 'ipv6-route',
'44': 'ipv6-frag',
'45': 'idrp',
'46': 'rsvp',
'47': 'gre',
'50': 'esp',
'51': 'ah',
'57': 'skip',
'58': 'ipv6-icmp',
'59': 'ipv6-nonxt',
'60': 'ipv6-opts',
'73': 'rspf',
'81': 'vmtp',
'88': 'eigrp',
'89': 'ospf',
'93': 'ax.25',
'94': 'ipip',
'97': 'etherip',
'98': 'encap',
'103': 'pim',
'108': 'ipcomp',
'112': 'vrrp',
'115': 'l2tp',
'124': 'isis',
'132': 'sctp',
'133': 'fc',
'135': 'mobility-header',
'136': 'udplite',
'137': 'mpls-in-ip',
'138': 'manet',
'139': 'hip',
'140': 'shim6',
'141': 'wesp',
'142': 'rohc'}
# A length of a iptables chain name must be less than or equal to 11
# characters.
# <max length of iptables chain name> - (<binary_name> + '-') = 28-(16+1) = 11
MAX_IPTABLES_CHAIN_LEN_WRAP = 11
MAX_IPTABLES_CHAIN_LEN_NOWRAP = 28
# Timeout in seconds for getting an IPv6 LLA
LLA_TASK_TIMEOUT = 40
# length of all device prefixes (e.g. qvo, tap, qvb)
LINUX_DEV_PREFIX_LEN = 3
# must be shorter than linux IFNAMSIZ (which is 16)
LINUX_DEV_LEN = 14
# Possible prefixes to partial port IDs in interface names used by the OVS,
# Linux Bridge, and IVS VIF drivers in Nova and the neutron agents. See the
# 'get_ovs_interfaceid' method in Nova (nova/virt/libvirt/vif.py) for details.
INTERFACE_PREFIXES = (TAP_DEVICE_PREFIX,
VETH_DEVICE_PREFIX,
SNAT_INT_DEV_PREFIX)
ATTRIBUTES_TO_UPDATE = 'attributes_to_update'
# TODO(amuller): Re-define the RPC namespaces once Oslo messaging supports
# Targets with multiple namespaces. Neutron will then implement callbacks
# for its RPC clients in order to support rolling upgrades.
# RPC Interface for agents to call DHCP API implemented on the plugin side
RPC_NAMESPACE_DHCP_PLUGIN = None
# RPC interface for the metadata service to get info from the plugin side
RPC_NAMESPACE_METADATA = None
# RPC interface for agent to plugin security group API
RPC_NAMESPACE_SECGROUP = None
# RPC interface for agent to plugin DVR api
RPC_NAMESPACE_DVR = None
# RPC interface for reporting state back to the plugin
RPC_NAMESPACE_STATE = None
# RPC interface for agent to plugin resources API
RPC_NAMESPACE_RESOURCES = None
# Default network MTU value when not configured
DEFAULT_NETWORK_MTU = 1500
IPV6_MIN_MTU = 1280
ROUTER_MARK_MASK = "0xffff"
VALID_ETHERTYPES = (IPv4, IPv6)
IP_ALLOWED_VERSIONS = [IP_VERSION_4, IP_VERSION_6]
PORT_RANGE_MIN = 1
PORT_RANGE_MAX = 65535
DHCPV6_CLIENT_PORT = 546
# Configuration values for accept_ra sysctl, copied from linux kernel
# networking (netdev) tree, file Documentation/networking/ip-sysctl.txt
#
# Possible values are:
# 0 Do not accept Router Advertisements.
# 1 Accept Router Advertisements if forwarding is disabled.
# 2 Overrule forwarding behaviour. Accept Router Advertisements
# even if forwarding is enabled.
ACCEPT_RA_DISABLED = 0
ACCEPT_RA_WITHOUT_FORWARDING = 1
ACCEPT_RA_WITH_FORWARDING = 2
# Some components communicate using private address ranges, define
# them all here. These address ranges should not cause any issues
# even if they overlap since they are used in disjoint namespaces,
# but for now they are unique.
# We define the metadata cidr since it falls in the range.
PRIVATE_CIDR_RANGE = '169.254.0.0/16'
DVR_FIP_LL_CIDR = '169.254.64.0/18'
L3_HA_NET_CIDR = '169.254.192.0/18'
METADATA_CIDR = '169.254.169.254/32'
# The only defined IpamAllocation status at this stage is 'ALLOCATED'.
# More states will be available in the future - e.g.: RECYCLABLE
IPAM_ALLOCATION_STATUS_ALLOCATED = 'ALLOCATED'
VALID_IPAM_ALLOCATION_STATUSES = (IPAM_ALLOCATION_STATUS_ALLOCATED,)
# Port binding states for Live Migration
PORT_BINDING_STATUSES = (ACTIVE,
INACTIVE)
VALID_FLOATINGIP_STATUS = (FLOATINGIP_STATUS_ACTIVE,
FLOATINGIP_STATUS_DOWN,
FLOATINGIP_STATUS_ERROR)
# Floating IP host binding states
FLOATING_IP_HOST_UNBOUND = "FLOATING_IP_HOST_UNBOUND"
FLOATING_IP_HOST_NEEDS_BINDING = "FLOATING_IP_HOST_NEEDS_BINDING"
# Possible types of values (e.g. in QoS rule types)
VALUES_TYPE_CHOICES = "choices"
VALUES_TYPE_RANGE = "range"
# Units base
SI_BASE = 1000
IEC_BASE = 1024
# Port bindings handling
NO_ACTIVE_BINDING = 'no_active_binding'
EXT_PARENT_PREFIX = 'ext_parent'
RP_BANDWIDTHS = 'resource_provider_bandwidths'
RP_INVENTORY_DEFAULTS = 'resource_provider_inventory_defaults'