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authorEmil <emu@emuadmin.com>2019-04-17 17:32:05 +0000
committerEmil <emu@emuadmin.com>2019-04-17 17:32:05 +0000
commit316b8b2339efa131fc39f050ee0c9fe5291572b7 (patch)
tree51e75826056b3a4d8b7e45545ec4ea7e672ff735
parent0c9de67f343c0e740a7f488e85270d519a352119 (diff)
Filter IPv6 by ASN
-rwxr-xr-xcontrib/seeds/makeseeds.py27
1 files changed, 18 insertions, 9 deletions
diff --git a/contrib/seeds/makeseeds.py b/contrib/seeds/makeseeds.py
index 6527deccf2..523386e393 100755
--- a/contrib/seeds/makeseeds.py
+++ b/contrib/seeds/makeseeds.py
@@ -109,18 +109,30 @@ def filtermultiport(ips):
# Based on Greg Maxwell's seed_filter.py
def filterbyasn(ips, max_per_asn, max_total):
# Sift out ips by type
- ips_ipv4 = [ip for ip in ips if ip['net'] == 'ipv4']
- ips_ipv6 = [ip for ip in ips if ip['net'] == 'ipv6']
+ ips_ipv46 = [ip for ip in ips if ip['net'] in ['ipv4', 'ipv6']]
ips_onion = [ip for ip in ips if ip['net'] == 'onion']
- # Filter IPv4 by ASN
+ # Filter IPv46 by ASN
result = []
asn_count = {}
- for ip in ips_ipv4:
+ for ip in ips_ipv46:
if len(result) == max_total:
break
try:
- asn = int([x.to_text() for x in dns.resolver.query('.'.join(reversed(ip['ip'].split('.'))) + '.origin.asn.cymru.com', 'TXT').response.answer][0].split('\"')[1].split(' ')[0])
+ if ip['net'] == 'ipv4':
+ ipaddr = ip['ip']
+ prefix = '.origin'
+ else: # http://www.team-cymru.com/IP-ASN-mapping.html
+ res = str() # 2001:4860:b002:23::68
+ for nb in ip['ip'].split(':')[:4]: # pick the first 4 nibbles
+ for c in nb.zfill(4): # right padded with '0'
+ res += c + '.' # 2001 4860 b002 0023
+ ipaddr = res.rstrip('.') # 2.0.0.1.4.8.6.0.b.0.0.2.0.0.2.3
+ prefix = '.origin6'
+
+ asn = int([x.to_text() for x in dns.resolver.query('.'.join(
+ reversed(ipaddr.split('.'))) + prefix + '.asn.cymru.com',
+ 'TXT').response.answer][0].split('\"')[1].split(' ')[0])
if asn not in asn_count:
asn_count[asn] = 0
if asn_count[asn] == max_per_asn:
@@ -130,10 +142,7 @@ def filterbyasn(ips, max_per_asn, max_total):
except:
sys.stderr.write('ERR: Could not resolve ASN for "' + ip['ip'] + '"\n')
- # TODO: filter IPv6 by ASN
-
- # Add back non-IPv4
- result.extend(ips_ipv6)
+ # Add back Onions
result.extend(ips_onion)
return result