https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6484
Summary: Mail::SpamAssassin::Plugin::ASN - Alternative zone
FORMAT enhancements.
Product: Spamassassin
Version: 3.3.1
Platform: All
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P5
Component: Plugins
AssignedTo: [email protected]
ReportedBy: [email protected]
Created an attachment (id=4800)
--> (https://issues.apache.org/SpamAssassin/attachment.cgi?id=4800)
UNTESTED replacement for file ASN.pm (not a diff-style patch)
1) It appears that the TXT-RR returned by at least one alternative zone
offering has only one field, the ASN. Since it lacks 3 fields, extracting the
data in process_dns_result() of the module FAILS.
2) I have also noted at least two other zones offering the same or similar
data, some with additional fields, and formatted differently. I've rewritten
the process_dns_result() routine in the ASN.pm file to accomodate these
additional formats.
Zones being tested:
asn.routeviews.org
origin.asn.cymru.com
origin.asn.spameatingmonkey.net
ip2asn.sasm4.net
3) I note that this plugin handles IPv4 lookups only. I shall leave IPv6
handling for someone more skilled in SA and perl. Meanwhile, I do note that
there is one IPv6 lookup zone that follows the "ip6.arpa" format for reversing
an IPv6 address:
origin6.asn.cymru.com
The IPv6 modification which is needed appears to be ONLY in parsed_metadata()
after the "local()" where I have commented.
I am alpha-testing a replacement file now. It passes the "SA --lint" test.
However, I don't think it's working. However, it did fetch these DNS TXT-RR's
for my test message:
123.237.142.68.ip2asn.sasm4.net. 3501 TXT "as14779"
123.237.142.68.asn.routeviews.org. 86300 TXT "14779" "68.142.224.0" "20"
123.237.142.68.origin.asn.cymru.com. 14300 TXT "14779 | 68.142.224.0/20 | US |
arin | 2004-03-24"
123.237.142.68.origin.asn.spameatingmonkey.net. 200 TXT "68.142.224.0/20 |
AS14779 | Inktomi Corporation | 2000-02-07 | Unknown"
(Test source address 68.142.237.123 is a Yahoo.com mail server. All four
records were in my DNS server's cache, so I know the lookup part still works.)
Does anyone else want to take a stab at upgrading this module (and share
credit)?
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