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- Patch for access to full DNS packet data in unbound python module

  from Ondrej Mikle.


git-svn-id: http://unbound.nlnetlabs.nl/svn/trunk@2643 be551aaa-1e26-0410-a405-d3ace91eadb9
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commit 57321c5a82df0a2ab7debc350c277728f1222ef0 1 parent 27f4f01
wouter authored
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4 doc/Changelog
@@ -1,3 +1,7 @@
+16 March 2012: Wouter
+ - Patch for access to full DNS packet data in unbound python module
+ from Ondrej Mikle.
+
9 March 2012: Wouter
- Applied line-buffer patch from Augie Schwer to validation.reporter.sh.
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35 libunbound/python/examples/dnssec_test.py
@@ -0,0 +1,35 @@
+#!/usr/bin/env python
+from unbound import ub_ctx, RR_TYPE_A, RR_TYPE_RRSIG, RR_TYPE_NSEC, RR_TYPE_NSEC3
+import ldns
+
+def dnssecParse(domain, rrType=RR_TYPE_A):
+ print "Resolving domain", domain
+ s, r = resolver.resolve(domain)
+ print "status: %s, secure: %s, rcode: %s, havedata: %s, answer_len; %s" % (s, r.secure, r.rcode_str, r.havedata, r.answer_len)
+
+ s, pkt = ldns.ldns_wire2pkt(r.packet)
+ if s != 0:
+ raise RuntimeError("Error parsing DNS packet")
+
+ rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_ANSWER)
+ print "RRSIGs from answer:", rrsigs
+
+ rrsigs = pkt.rr_list_by_type(RR_TYPE_RRSIG, ldns.LDNS_SECTION_AUTHORITY)
+ print "RRSIGs from authority:", rrsigs
+
+ nsecs = pkt.rr_list_by_type(RR_TYPE_NSEC, ldns.LDNS_SECTION_AUTHORITY)
+ print "NSECs:", nsecs
+
+ nsec3s = pkt.rr_list_by_type(RR_TYPE_NSEC3, ldns.LDNS_SECTION_AUTHORITY)
+ print "NSEC3s:", nsec3s
+
+ print "---"
+
+
+resolver = ub_ctx()
+resolver.add_ta(". IN DS 19036 8 2 49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5")
+
+dnssecParse("nic.cz")
+dnssecParse("nonexistent-domain-blablabla.cz")
+dnssecParse("nonexistent-domain-blablabla.root.cz")
+
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5 libunbound/python/libunbound.i
@@ -768,6 +768,10 @@ Result: ['74.125.43.147', '74.125.43.99', '74.125.43.103', '74.125.43.104']
return list;
}
+
+ PyObject* _packet() {
+ return PyString_FromStringAndSize($self->answer_packet, $self->answer_len);
+ }
%pythoncode %{
def __init__(self):
@@ -805,6 +809,7 @@ Result: ['74.125.43.147', '74.125.43.99', '74.125.43.103', '74.125.43.104']
return ub_data(self._ub_result_data(self))
__swig_getmethods__["data"] = _get_data
+ __swig_getmethods__["packet"] = _packet
data = property(_get_data, doc="Returns :class:`ub_data` instance containing various decoding functions or None")
%}
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