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
|
# $Id$
import rpki.resource_set, os, yaml
class allocation_db(list):
def __init__(self, yaml):
allocation(yaml, self).closure()
@classmethod
def from_file(cls, filename):
return cls(yaml.safe_load(open(filename)))
class allocation(object):
parent = None
def __init__(self, yaml, db, parent = None):
db.append(self)
self.name = yaml["name"]
self.parent = parent
self.kids = [allocation(k, db, self) for k in yaml.get("kids", ())]
self.base = rpki.resource_set.resource_bag(
as = rpki.resource_set.resource_set_as(yaml.get("asn")),
v4 = rpki.resource_set.resource_set_ipv4(yaml.get("ipv4")),
v6 = rpki.resource_set.resource_set_ipv6(yaml.get("ipv6")))
def closure(self):
"""Compute the transitive resource closure for one resource attribute."""
resources = self.base
for kid in self.kids:
resources = resources.union(kid.closure())
self.resources = resources
return resources
def is_leaf(self):
return not self.kids
def is_root(self):
return self.parent is None
def __str__(self):
s = self.name + "\n"
if self.resources.as:
s += " ASN: %s\n" % self.resources.as
if self.resources.v4:
s += " IPv4: %s\n" % self.resources.v4
if self.resources.v6:
s += " IPv6: %s\n" % self.resources.v6
if self.kids:
s += " Kids: %s\n" % ", ".join(k.name for k in self.kids)
if self.parent:
s += " Up: %s\n" % self.parent.name
return s
if __name__ == "__main__":
for i in allocation_db.from_file("testdb2.yaml"):
print i
|
