File: constants.py

package info (click to toggle)
python-neutron-lib 1.29.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 6,092 kB
  • sloc: python: 20,031; sh: 98; makefile: 22
file content (625 lines) | stat: -rw-r--r-- 20,854 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
# 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'
PORT_FORWARDING_FLOATINGIP_KEY = '_pf_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_HOPOPT = 'hopopt'
PROTO_NAME_ICMP = 'icmp'
PROTO_NAME_IGMP = 'igmp'
PROTO_NAME_IP = 'ip'
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_HOPOPT = 0
PROTO_NUM_ICMP = 1
PROTO_NUM_IGMP = 2
PROTO_NUM_IP = 0
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_HOPOPT: PROTO_NUM_HOPOPT,
                   PROTO_NAME_ICMP: PROTO_NUM_ICMP,
                   PROTO_NAME_IGMP: PROTO_NUM_IGMP,
                   PROTO_NAME_IP: PROTO_NUM_IP,
                   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_RARP = 0x8035
ETHERTYPE_IP = 0x0800
ETHERTYPE_IPV6 = 0x86DD

IP_PROTOCOL_NAME_ALIASES = {PROTO_NAME_IPV6_ICMP_LEGACY:
                            PROTO_NAME_IPV6_ICMP}

# We only want one mapping from '58' to 'ipv6-icmp' since that is the
# normalized string, the name to number mapping can have both
IP_PROTOCOL_NUM_TO_NAME_MAP = ({str(v): k for k, v in IP_PROTOCOL_MAP.items()
                               if k != PROTO_NAME_IPV6_ICMP_LEGACY})

# 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

ETHERTYPE_MIN = 0
ETHERTYPE_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'