1 files changed, 85 insertions, 0 deletions
diff --git a/potpourri/iana-to-csv.py b/potpourri/iana-to-csv.py
new file mode 100644
index 00000000..f803a21e
--- /dev/null
+++ b/potpourri/iana-to-csv.py
@@ -0,0 +1,85 @@
+# $Id$
+# 
+# Copyright (C) 2010-2012  Internet Systems Consortium ("ISC")
+# 
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+# AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE.
+
+"""
+Parse IANA XML data.
+"""
+
+import sys
+import lxml.etree
+from rpki.csv_utils import csv_reader, csv_writer
+from rpki.resource_set import resource_bag
+
+def iterate_xml(filename, tag):
+  return lxml.etree.parse(filename).getroot().getiterator(tag)
+
+def ns(tag):
+  return "{http://www.iana.org/assignments}" + tag
+
+tag_description = ns("description")
+tag_designation = ns("designation")
+tag_record      = ns("record")
+tag_number      = ns("number")
+tag_prefix      = ns("prefix")
+tag_status      = ns("status")
+
+handles = {}
+rirs = { "legacy" : resource_bag() }
+
+for rir in ("AfriNIC", "APNIC", "ARIN", "LACNIC", "RIPE NCC"):
+  handle = rir.split()[0].lower()
+  handles[rir] = handles["Assigned by %s" % rir] = handles["Administered by %s" % rir] = handle
+  rirs[handle] = resource_bag()
+
+asns     = csv_writer("asns.csv")
+prefixes = csv_writer("prefixes.csv")
+
+for record in iterate_xml("as-numbers.xml", tag_record):
+  description = record.findtext(tag_description)
+  if description in handles:
+    asns.writerow((handles[description], record.findtext(tag_number)))
+    
+for record in iterate_xml("ipv4-address-space.xml", tag_record):
+  designation = record.findtext(tag_designation)
+  if record.findtext(tag_status) != "RESERVED":
+    prefix, prefixlen = [int(i) for i in record.findtext(tag_prefix).split("/")]
+    if prefixlen != 8:
+      raise ValueError("%s violated /8 assumption" % record.findtext(tag_prefix))
+    rirs[handles.get(designation, "legacy")] |= resource_bag.from_str("%d.0.0.0/8" % prefix)
+
+for record in iterate_xml("ipv6-unicast-address-assignments.xml", tag_record):
+  description = record.findtext(tag_description)
+  if record.findtext(tag_description) in handles:
+    rirs[handles[description]] |= resource_bag.from_str(record.findtext(tag_prefix))
+
+erx = list(csv_reader("erx.csv"))
+assert all(r in rirs for r, p in erx)
+
+erx_overrides = resource_bag.from_str(",".join(p for r, p in erx), allow_overlap = True)
+
+for rir in rirs:
+  if rir != "legacy":
+    rirs[rir] -= erx_overrides
+    rirs[rir] |= resource_bag.from_str(",".join(p for r, p in erx if r == rir), allow_overlap = True)
+
+for rir, bag in rirs.iteritems():
+  for p in bag.v4:
+    prefixes.writerow((rir, p))
+  for p in bag.v6:
+    prefixes.writerow((rir, p))
+
+asns.close()
+prefixes.close()