github/Responder
1
0
Fork 0
mirror of https://github.com/lgandx/Responder.git synced 2025-08-20 13:23:38 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

added support for OPT EDNS

Browse source
This commit is contained in:
lgandx 2021-12-21 22:39:02 -03:00
commit 5cf69228cf
2 changed files with 103 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

67
packets.py
View file

@ -89,6 +89,40 @@ class DNS_Ans(Packet):
self.fields["QuestionName"] = ''.join(data[12:].split('\x00')[:1])
self.fields["IP"] = RespondWithIPAton()
self.fields["IPLen"] = StructPython2or3(">h",self.fields["IP"])
# DNS Answer Packet OPT
class DNS_AnsOPT(Packet):
fields = OrderedDict([
("Tid", ""),
("Flags", "\x85\x10"),
("Question", "\x00\x01"),
("AnswerRRS", "\x00\x01"),
("AuthorityRRS", "\x00\x00"),
("AdditionalRRS", "\x00\x01"),
("QuestionName", ""),
("QuestionNameNull", "\x00"),
("Type", "\x00\x01"),
("Class", "\x00\x01"),
("AnswerPointer", "\xc0\x0c"),
("Type1", "\x00\x01"),
("Class1", "\x00\x01"),
("TTL", "\x00\x00\x00\x1e"), #30 secs, don't mess with their cache for too long..
("IPLen", "\x00\x04"),
("IP", "\x00\x00\x00\x00"),
("OPTName", "\x00"),
("OPTType", "\x00\x29"),
("OPTUDPSize", "\x10\x00"),
("OPTRCode", "\x00"),
("OPTEDNSVersion", "\x00"),
("OPTLen", "\x00\x00"),# Hardcoded since it's fixed to 0 in this case.
("OPTStr", "\x00\x00"),
])
def calculate(self,data):
self.fields["Tid"] = data[0:2]
self.fields["QuestionName"] = ''.join(data[12:].split('\x00')[:1])
self.fields["IP"] = RespondWithIPAton()
self.fields["IPLen"] = StructPython2or3(">h",self.fields["IP"])
class DNS6_Ans(Packet):
fields = OrderedDict([
@ -115,6 +149,39 @@ class DNS6_Ans(Packet):
self.fields["QuestionName"] = ''.join(data[12:].split('\x00')[:1])
self.fields["IP"] = RespondWithIPPton()
self.fields["IPLen"] = StructPython2or3(">h",self.fields["IP"])
class DNS6_AnsOPT(Packet):
fields = OrderedDict([
("Tid", ""),
("Flags", "\x85\x10"),
("Question", "\x00\x01"),
("AnswerRRS", "\x00\x01"),
("AuthorityRRS", "\x00\x00"),
("AdditionalRRS", "\x00\x01"),
("QuestionName", ""),
("QuestionNameNull", "\x00"),
("Type", "\x00\x1c"),
("Class", "\x00\x01"),
("AnswerPointer", "\xc0\x0c"),
("Type1", "\x00\x1c"),
("Class1", "\x00\x01"),
("TTL", "\x00\x00\x00\x1e"), #30 secs, don't mess with their cache for too long..
("IPLen", "\x00\x04"),
("IP", "\x00\x00\x00\x00"),
("OPTName", "\x00"),
("OPTType", "\x00\x29"),
("OPTUDPSize", "\x10\x00"),
("OPTRCode", "\x00"),
("OPTEDNSVersion", "\x00"),
("OPTLen", "\x00\x00"),# Hardcoded since it's fixed to 0 in this case.
("OPTStr", "\x00\x00"),
])
def calculate(self,data):
self.fields["Tid"] = data[0:2]
self.fields["QuestionName"] = ''.join(data[12:].split('\x00')[:1])
self.fields["IP"] = RespondWithIPPton()
self.fields["IPLen"] = StructPython2or3(">h",self.fields["IP"])
class DNS_SRV_Ans(Packet):
fields = OrderedDict([