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

Browse source 
from Ondrej Mikle.


git-svn-id: file:///svn/unbound/trunk@2643 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards 2012-03-16 14:53:51 +00:00
parent fc52ee5aca
commit 4e92719611
3 changed files with 44 additions and 0 deletions
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4
doc/Changelog
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@ -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.

35
libunbound/python/examples/dnssec_test.py Normal file
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@ -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")

5
libunbound/python/libunbound.i
View file

@ -769,6 +769,10 @@ 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):
raise Exception("This class can't be created directly.")
@ -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")
%}