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Arnaud Véron
slapos.core
Commits
57118615
Commit
57118615
authored
Nov 24, 2022
by
Xavier Thompson
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slapformat: Introduce IPv6 range for each partition
parent
81c1e8ba
Changes
3
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3 changed files
with
235 additions
and
83 deletions
+235
-83
slapos/format.py
slapos/format.py
+174
-75
slapos/tests/test_slapformat.py
slapos/tests/test_slapformat.py
+12
-8
slapos/util.py
slapos/util.py
+49
-0
No files found.
slapos/format.py
View file @
57118615
This diff is collapsed.
Click to expand it.
slapos/tests/test_slapformat.py
View file @
57118615
...
...
@@ -301,7 +301,7 @@ class SlapformatMixin(unittest.TestCase):
raise
ValueError
(
"{} already has logger attached"
.
format
(
self
.
__class__
.
__name__
))
self
.
logger
=
logger
self
.
partition
=
slapos
.
format
.
Partition
(
'partition'
,
'/part_path'
,
slapos
.
format
.
User
(
'testuser'
),
[],
None
)
slapos
.
format
.
User
(
'testuser'
),
[],
None
,
None
)
global
USER_LIST
USER_LIST
=
[]
global
GROUP_LIST
...
...
@@ -423,7 +423,8 @@ class TestComputer(SlapformatMixin):
logger
=
self
.
logger
,
name
=
'myinterface'
,
ipv4_local_network
=
'127.0.0.1/16'
),
partition_list
=
[
slapos
.
format
.
Partition
(
'partition'
,
'/part_path'
,
slapos
.
format
.
User
(
'testuser'
),
[],
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
'partition'
,
'/part_path'
,
slapos
.
format
.
User
(
'testuser'
),
[],
ipv6_range
=
None
,
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
])
global
INTERFACE_DICT
INTERFACE_DICT
[
'myinterface'
]
=
{
...
...
@@ -466,7 +467,8 @@ class TestComputer(SlapformatMixin):
logger
=
self
.
logger
,
name
=
'myinterface'
,
ipv4_local_network
=
'127.0.0.1/16'
),
partition_list
=
[
slapos
.
format
.
Partition
(
'partition'
,
'/part_path'
,
slapos
.
format
.
User
(
'testuser'
),
[],
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
'partition'
,
'/part_path'
,
slapos
.
format
.
User
(
'testuser'
),
[],
ipv6_range
=
None
,
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
])
global
USER_LIST
USER_LIST
=
[
'testuser'
]
...
...
@@ -517,7 +519,7 @@ class TestComputer(SlapformatMixin):
partition_list
=
[
slapos
.
format
.
Partition
(
'partition'
,
'/part_path'
,
slapos
.
format
.
User
(
'testuser'
),
[],
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
ipv6_range
=
None
,
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
])
global
USER_LIST
USER_LIST
=
[
'testuser'
]
...
...
@@ -577,7 +579,7 @@ class TestComputer(SlapformatMixin):
partition_list
=
[
slapos
.
format
.
Partition
(
'partition'
,
'/part_path'
,
slapos
.
format
.
User
(
'testuser'
),
[],
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
ipv6_range
=
None
,
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
])
global
INTERFACE_DICT
INTERFACE_DICT
[
'myinterface'
]
=
{
...
...
@@ -618,7 +620,7 @@ class TestComputer(SlapformatMixin):
partition_list
=
[
slapos
.
format
.
Partition
(
'partition'
,
'/part_path'
,
slapos
.
format
.
User
(
'testuser'
),
[],
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
ipv6_range
=
None
,
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
])
global
INTERFACE_DICT
INTERFACE_DICT
[
'myinterface'
]
=
{
...
...
@@ -660,7 +662,8 @@ class TestFormatDump(SlapformatMixin):
logger
=
self
.
logger
,
name
=
'myinterface'
,
ipv4_local_network
=
'127.0.0.1/16'
),
partition_list
=
[
slapos
.
format
.
Partition
(
'partition'
,
'part_path'
,
slapos
.
format
.
User
(
'testuser'
),
[],
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
'partition'
,
'part_path'
,
slapos
.
format
.
User
(
'testuser'
),
[],
ipv6_range
=
None
,
tap
=
slapos
.
format
.
Tap
(
'tap'
)),
])
global
USER_LIST
USER_LIST
=
[
'testuser'
]
...
...
@@ -745,7 +748,8 @@ class TestComputerWithCPUSet(SlapformatMixin):
logger
=
self
.
logger
,
name
=
'lo'
,
ipv4_local_network
=
'127.0.0.1/16'
),
partition_list
=
[
slapos
.
format
.
Partition
(
'partition'
,
'/tmp/slapgrid/instance_root/part1'
,
slapos
.
format
.
User
(
'testuser'
),
[],
tap
=
None
),
'partition'
,
'/tmp/slapgrid/instance_root/part1'
,
slapos
.
format
.
User
(
'testuser'
),
[],
ipv6_range
=
None
,
tap
=
None
),
],
config
=
{
"manager_list"
:
"cpuset"
,
...
...
slapos/util.py
View file @
57118615
...
...
@@ -205,6 +205,51 @@ def ipv6FromBin(ip, suffix=''):
return
socket
.
inet_ntop
(
socket
.
AF_INET6
,
struct
.
pack
(
'>QQ'
,
int
(
ip
[:
64
],
2
),
int
(
ip
[
64
:],
2
)))
def
getPartitionIpv6Addr
(
ipv6_range
,
partition_index
):
"""
from a IPv6 range in the form
{
'addr' : addr,
'prefixlen' : CIDR
}
returns the IPv6 addr
addr::(partition_index+2) (address 1 is is used by re6st)
"""
addr
=
ipv6_range
[
'addr'
]
prefixlen
=
ipv6_range
[
'prefixlen'
]
prefix
=
binFromIpv6
(
addr
)[:
prefixlen
]
return
dict
(
addr
=
ipv6FromBin
(
prefix
+
bin
(
partition_index
+
2
)[
2
:].
zfill
(
128
-
prefixlen
)),
prefixlen
=
prefixlen
)
def
getIpv6RangeFactory
(
k
,
s
):
def
getIpv6Range
(
ipv6_range
,
partition_index
):
"""
from a IPv6 range in the form
{
'addr' : addr,
'prefixlen' : CIDR
}
returns the IPv6 range
{
'addr' : addr:(k*(2^14) + partition_index+1)
'prefixlen' : CIDR+16
}
"""
addr
=
ipv6_range
[
'addr'
]
prefixlen
=
ipv6_range
[
'prefixlen'
]
prefix
=
binFromIpv6
(
addr
)[:
prefixlen
]
# we generate a subnetwork for the partition
# the subnetwork has 16 bits more than our IPv6 range
# make sure we have at least 2 IPs in the subnetwork
prefixlen
+=
16
if
prefixlen
>=
128
:
raise
ValueError
(
'The IPv6 range has prefixlen {} which is too big for generating IPv6 range for partitions.'
.
format
(
prefixlen
))
return
dict
(
addr
=
ipv6FromBin
(
prefix
+
bin
((
k
<<
14
)
+
partition_index
+
1
)[
2
:].
zfill
(
16
)
+
s
*
(
128
-
prefixlen
)),
prefixlen
=
prefixlen
)
return
getIpv6Range
getPartitionIpv6Range
=
getIpv6RangeFactory
(
1
,
'0'
)
getTapIpv6Range
=
getIpv6RangeFactory
(
2
,
'1'
)
def
lenNetmaskIpv6
(
netmask
):
"""Convert string represented netmask to its integer prefix"""
# Since version 0.10.7 of netifaces, the netmask is something like "ffff::/16",
...
...
@@ -215,6 +260,10 @@ def lenNetmaskIpv6(netmask):
except
ValueError
:
return
netaddr
.
IPNetwork
(
netmask
).
prefixlen
def
netmaskFromLenIPv6
(
netmask_len
):
""" opposite of lenNetmaskIpv6"""
return
ipv6FromBin
(
'1'
*
netmask_len
)
# Used for Python 2-3 compatibility
if
str
is
bytes
:
bytes2str
=
str2bytes
=
lambda
s
:
s
...
...
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