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strict asn checking

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This commit is contained in:
JerryXiao 2020-05-22 18:13:42 +08:00
parent ddfa48a9d1
commit 3766d1a350
Signed by: Jerry
GPG key ID: 9D9CE43650FF2BAA
1 changed files with 10 additions and 6 deletions
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16
scripts/roa.py
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@ -54,13 +54,17 @@ def shell2dict(shellscript):
cwd = Path()
assert not [d for d in ("asn", "route", "route6", "node", "entity") if not (cwd / d).is_dir()]
def str2asn(s_asn):
def str2asn(s_asn, strict=None):
""" strict: 1 with prefix AS, other bool(x)==True without prefix AS """
s_asn = s_asn.strip().lower()
if strict == 1:
assert s_asn.startswith('as')
elif strict:
assert int(s_asn)
if s_asn.startswith('as'):
s_asn = s_asn[2:]
return int(s_asn)
def name2nichdl(name):
r, num = re.subn(r'[^0-9A-Z]', '-', name.upper())
_r = len(r.replace('-', ''))
@ -109,9 +113,9 @@ def neonet_get_asns():
continue
fc = shell2dict(f.read_text())
present_keys = ('name', 'owner', 'desc')
asns[str2asn(f.name)] = {k: fc.get(k) for k in present_keys}
asns[str2asn(f.name, 1)] = {k: fc.get(k) for k in present_keys}
assert fc.get('owner') in PEOPLE
for v in asns[str2asn(f.name)].values():
for v in asns[str2asn(f.name, 1)].values():
assert v is not None
except Exception:
print("[!] Error while processing file", f)
@ -126,7 +130,7 @@ def node2asn():
if not f.is_file():
continue
fc = shell2dict(f.read_text())
asn = str2asn(fc.get('asn'))
asn = str2asn(fc.get('asn'), 2)
assert asn in ASNS
node_table[f.name] = asn
except Exception:
@ -162,7 +166,7 @@ def neonet_route2roa(dirname, is_ipv6=False):
get_supernet = lambda s_net: None if not s_net else nettype(s_net, strict=True)
roa_entries_key = ("asn", "prefix", "supernet", "netname")
if fc.get('type').lower() in ('lo', 'subnet'):
asn = str2asn(fc.get('asn'))
asn = str2asn(fc.get('asn'), 2)
assert asn in ASNS # asn not in as-dir
route = f.name.replace(',', '/')
net = nettype(route, strict=True)