1 files changed, 101 insertions, 0 deletions
diff --git a/rpki/oids.py b/rpki/oids.py
new file mode 100644
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+++ b/rpki/oids.py
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+# $Id$
+# 
+# Copyright (C) 2013--2014  Dragon Research Labs ("DRL")
+# Portions copyright (C) 2009--2012  Internet Systems Consortium ("ISC")
+# Portions copyright (C) 2007--2008  American Registry for Internet Numbers ("ARIN")
+# 
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notices and this permission notice appear in all copies.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS" AND DRL, ISC, AND ARIN DISCLAIM ALL
+# WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL DRL,
+# ISC, OR ARIN 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.
+
+"""
+OID database.
+
+This used to be fairly complicated, with multiple representations and
+a collection of conversion functions, but now it is very simple:
+
+- We represent OIDs as Python strings, holding the dotted-decimal
+  form of an OID.  Nothing but decimal digits and "." is legal.
+  This is compatible with the format that rpki.POW uses.
+
+- We define symbols in this module whose values are OIDs.
+
+That's pretty much it.  There's a bit of code at the end which checks
+the syntax of the defined strings and provides a pretty-print function
+for the rare occasion when we need to print an OID, but other than
+that this is just a collection of symbolic names for text strings.
+"""
+
+ecdsa_with_SHA256               = "1.2.840.10045.4.3.2"
+sha256WithRSAEncryption         = "1.2.840.113549.1.1.11"
+sha384WithRSAEncryption         = "1.2.840.113549.1.1.12"
+sha512WithRSAEncryption         = "1.2.840.113549.1.1.13"
+id_data                         = "1.2.840.113549.1.7.1"
+id_smime                        = "1.2.840.113549.1.9.16"
+id_ct                           = "1.2.840.113549.1.9.16.1"
+id_ct_routeOriginAttestation    = "1.2.840.113549.1.9.16.1.24"
+id_ct_rpkiManifest              = "1.2.840.113549.1.9.16.1.26"
+id_ct_xml                       = "1.2.840.113549.1.9.16.1.28"
+id_ct_rpkiGhostbusters          = "1.2.840.113549.1.9.16.1.35"
+authorityInfoAccess             = "1.3.6.1.5.5.7.1.1"
+sbgp_ipAddrBlock                = "1.3.6.1.5.5.7.1.7"
+sbgp_autonomousSysNum           = "1.3.6.1.5.5.7.1.8"
+subjectInfoAccess               = "1.3.6.1.5.5.7.1.11"
+id_kp_bgpsec_router             = "1.3.6.1.5.5.7.3.30"
+id_cp_ipAddr_asNumber           = "1.3.6.1.5.5.7.14.2"
+id_ad_caIssuers                 = "1.3.6.1.5.5.7.48.2"
+id_ad_caRepository              = "1.3.6.1.5.5.7.48.5"
+id_ad_signedObjectRepository    = "1.3.6.1.5.5.7.48.9"
+id_ad_rpkiManifest              = "1.3.6.1.5.5.7.48.10"
+id_ad_signedObject              = "1.3.6.1.5.5.7.48.11"
+commonName                      = "2.5.4.3"
+serialNumber                    = "2.5.4.5"
+countryName                     = "2.5.4.6"
+localityName                    = "2.5.4.7"
+stateOrProvinceName             = "2.5.4.8"
+streetAddress                   = "2.5.4.9"
+organizationName                = "2.5.4.10"
+organizationalUnitName          = "2.5.4.11"
+subjectKeyIdentifier            = "2.5.29.14"
+keyUsage                        = "2.5.29.15"
+basicConstraints                = "2.5.29.19"
+cRLNumber                       = "2.5.29.20"
+cRLDistributionPoints           = "2.5.29.31"
+certificatePolicies             = "2.5.29.32"
+authorityKeyIdentifier          = "2.5.29.35"
+extendedKeyUsage                = "2.5.29.37"
+id_sha256                       = "2.16.840.1.101.3.4.2.1"
+
+# Make sure all symbols exported so far look like OIDs, and build a
+# dictionary to use when pretty-printing.
+
+_oid2name = {}
+
+for _sym in dir():
+  if not _sym.startswith("_"):
+    _val = globals()[_sym]
+    if not isinstance(_val, str) or not all(_v.isdigit() for _v in _val.split(".")):
+      raise ValueError("Bad OID definition: %s = %r" % (_sym, _val))
+    _oid2name[_val] = _sym.replace("_", "-")
+
+del _sym
+del _val
+
+def oid2name(oid):
+  """
+  Translate an OID into a string suitable for printing.
+  """
+
+  if not isinstance(oid, (str, unicode)) or not all(o.isdigit() for o in oid.split(".")):
+    raise ValueError("Parameter does not look like an OID string: " + repr(oid))
+
+  return _oid2name.get(oid, oid)