projects / thirdparty / pdns.git / blame
| Commit | Line | Data |
|---|---|---|
| 7b9abc20 RG |
1 | #!/usr/bin/env python |
| 2 | ||
| 3 | import unittest | |
| 4 | import dns | |
| 5 | from dnsdisttests import DNSDistTest | |
| 6 | ||
| 7 | class TestAdvancedLuaFFI(DNSDistTest): | |
| 8 | ||
| 9 | _config_template = """ | |
| 10 | local ffi = require("ffi") | |
| 11 | ||
| 12 | local expectingUDP = true | |
| 13 | ||
| 14 | function luaffirulefunction(dq) | |
| 15 | local qtype = ffi.C.dnsdist_ffi_dnsquestion_get_qtype(dq) | |
| 16 | if qtype ~= DNSQType.A and qtype ~= DNSQType.SOA then | |
| 17 | print('invalid qtype') | |
| 18 | return false | |
| 19 | end | |
| 20 | ||
| 21 | local qclass = ffi.C.dnsdist_ffi_dnsquestion_get_qclass(dq) | |
| 22 | if qclass ~= DNSClass.IN then | |
| 23 | print('invalid qclass') | |
| 24 | return false | |
| 25 | end | |
| 26 | ||
| 27 | local ret_ptr = ffi.new("char *[1]") | |
| 28 | local ret_ptr_param = ffi.cast("const char **", ret_ptr) | |
| 29 | local ret_size = ffi.new("size_t[1]") | |
| 30 | local ret_size_param = ffi.cast("size_t*", ret_size) | |
| 31 | ffi.C.dnsdist_ffi_dnsquestion_get_qname_raw(dq, ret_ptr_param, ret_size_param) | |
| 32 | if ret_size[0] ~= 36 then | |
| 33 | print('invalid length for the qname ') | |
| 34 | print(ret_size[0]) | |
| 35 | return false | |
| 36 | end | |
| 37 | ||
| 38 | local expectedQname = string.char(6)..'luaffi'..string.char(8)..'advanced'..string.char(5)..'tests'..string.char(8)..'powerdns'..string.char(3)..'com' | |
| 39 | if ffi.string(ret_ptr[0]) ~= expectedQname then | |
| 40 | print('invalid qname') | |
| 41 | print(ffi.string(ret_ptr[0])) | |
| 42 | return false | |
| 43 | end | |
| 44 | ||
| 45 | local rcode = ffi.C.dnsdist_ffi_dnsquestion_get_rcode(dq) | |
| 46 | if rcode ~= 0 then | |
| 47 | print('invalid rcode') | |
| 48 | return false | |
| 49 | end | |
| 50 | ||
| 51 | local opcode = ffi.C.dnsdist_ffi_dnsquestion_get_opcode(dq) | |
| 52 | if qtype == DNSQType.A and opcode ~= DNSOpcode.Query then | |
| 53 | print('invalid opcode') | |
| 54 | return false | |
| 55 | elseif qtype == DNSQType.SOA and opcode ~= DNSOpcode.Update then | |
| 56 | print('invalid opcode') | |
| 57 | return false | |
| 58 | end | |
| 59 | ||
| 60 | local tcp = ffi.C.dnsdist_ffi_dnsquestion_get_tcp(dq) | |
| 61 | if expectingUDP == tcp then | |
| 62 | print('invalid tcp') | |
| 63 | return false | |
| 64 | end | |
| 65 | expectingUDP = expectingUDP == false | |
| 66 | ||
| 67 | local dnssecok = ffi.C.dnsdist_ffi_dnsquestion_get_do(dq) | |
| 68 | if dnssecok ~= false then | |
| 69 | print('invalid DNSSEC OK') | |
| 70 | return false | |
| 71 | end | |
| 72 | ||
| 73 | local len = ffi.C.dnsdist_ffi_dnsquestion_get_len(dq) | |
| 74 | if len ~= 52 then | |
| 75 | print('invalid length') | |
| 76 | print(len) | |
| 77 | return false | |
| 78 | end | |
| 79 | ||
| 80 | local tag = ffi.C.dnsdist_ffi_dnsquestion_get_tag(dq, 'a-tag') | |
| 81 | if ffi.string(tag) ~= 'a-value' then | |
| 82 | print('invalid tag value') | |
| 83 | print(ffi.string(tag)) | |
| 84 | return false | |
| 85 | end | |
| 86 | return true | |
| 87 | end | |
| 88 | ||
| 89 | function luaffiactionfunction(dq) | |
| 90 | local qtype = ffi.C.dnsdist_ffi_dnsquestion_get_qtype(dq) | |
| 91 | if qtype == DNSQType.A then | |
| 92 | local str = "192.0.2.1" | |
| 93 | local buf = ffi.new("char[?]", #str + 1) | |
| 94 | ffi.copy(buf, str) | |
| 95 | ffi.C.dnsdist_ffi_dnsquestion_set_result(dq, buf, #str) | |
| 96 | return DNSAction.Spoof | |
| 97 | elseif qtype == DNSQType.SOA then | |
| 98 | ffi.C.dnsdist_ffi_dnsquestion_set_rcode(dq, DNSRCode.REFUSED) | |
| 99 | return DNSAction.Refused | |
| 100 | end | |
| 101 | end | |
| 102 | ||
| 103 | function luaffiactionsettag(dq) | |
| 104 | ffi.C.dnsdist_ffi_dnsquestion_set_tag(dq, 'a-tag', 'a-value') | |
| 105 | return DNSAction.None | |
| 106 | end | |
| 107 | ||
| 108 | addAction(AllRule(), LuaFFIAction(luaffiactionsettag)) | |
| 109 | addAction(LuaFFIRule(luaffirulefunction), LuaFFIAction(luaffiactionfunction)) | |
| 110 | -- newServer{address="127.0.0.1:%s"} | |
| 111 | """ | |
| 112 | ||
| 113 | def testAdvancedLuaFFI(self): | |
| 114 | """ | |
| 115 | Lua FFI: Test the Lua FFI interface | |
| 116 | """ | |
| 117 | name = 'luaffi.advanced.tests.powerdns.com.' | |
| 118 | query = dns.message.make_query(name, 'A', 'IN') | |
| 119 | # dnsdist set RA = RD for spoofed responses | |
| 120 | query.flags &= ~dns.flags.RD | |
| 121 | ||
| 122 | response = dns.message.make_response(query) | |
| 123 | rrset = dns.rrset.from_text(name, | |
| 124 | 60, | |
| 125 | dns.rdataclass.IN, | |
| 126 | dns.rdatatype.A, | |
| 127 | '192.0.2.1') | |
| 128 | response.answer.append(rrset) | |
| 129 | ||
| 130 | for method in ("sendUDPQuery", "sendTCPQuery"): | |
| 131 | sender = getattr(self, method) | |
| 132 | (_, receivedResponse) = sender(query, response=None, useQueue=False) | |
| 133 | self.assertEqual(receivedResponse, response) | |
| 134 | ||
| 135 | def testAdvancedLuaFFIUpdate(self): | |
| 136 | """ | |
| 137 | Lua FFI: Test the Lua FFI interface via an update | |
| 138 | """ | |
| 139 | name = 'luaffi.advanced.tests.powerdns.com.' | |
| 140 | query = dns.message.make_query(name, 'SOA', 'IN') | |
| 141 | query.set_opcode(dns.opcode.UPDATE) | |
| 142 | # dnsdist set RA = RD for spoofed responses | |
| 143 | query.flags &= ~dns.flags.RD | |
| 144 | ||
| 145 | response = dns.message.make_response(query) | |
| 146 | response.set_rcode(dns.rcode.REFUSED) | |
| 147 | ||
| 148 | for method in ("sendUDPQuery", "sendTCPQuery"): | |
| 149 | sender = getattr(self, method) | |
| 150 | (_, receivedResponse) = sender(query, response=None, useQueue=False) | |
| 151 | self.assertEqual(receivedResponse, response) | |
| 152 | ||
| 153 | class TestAdvancedLuaFFIPerThread(DNSDistTest): | |
| 154 | ||
| 155 | _config_template = """ | |
| 156 | ||
| 157 | local rulefunction = [[ | |
| 158 | local ffi = require("ffi") | |
| 159 | ||
| 160 | return function(dq) | |
| 161 | local qtype = ffi.C.dnsdist_ffi_dnsquestion_get_qtype(dq) | |
| 162 | if qtype ~= DNSQType.A and qtype ~= DNSQType.SOA then | |
| 163 | print('invalid qtype') | |
| 164 | return false | |
| 165 | end | |
| 166 | ||
| 167 | local qclass = ffi.C.dnsdist_ffi_dnsquestion_get_qclass(dq) | |
| 168 | if qclass ~= DNSClass.IN then | |
| 169 | print('invalid qclass') | |
| 170 | return false | |
| 171 | end | |
| 172 | ||
| 173 | local ret_ptr = ffi.new("char *[1]") | |
| 174 | local ret_ptr_param = ffi.cast("const char **", ret_ptr) | |
| 175 | local ret_size = ffi.new("size_t[1]") | |
| 176 | local ret_size_param = ffi.cast("size_t*", ret_size) | |
| 177 | ffi.C.dnsdist_ffi_dnsquestion_get_qname_raw(dq, ret_ptr_param, ret_size_param) | |
| 178 | if ret_size[0] ~= 45 then | |
| 179 | print('invalid length for the qname ') | |
| 180 | print(ret_size[0]) | |
| 181 | return false | |
| 182 | end | |
| 183 | ||
| 184 | local expectedQname = string.char(15)..'luaffiperthread'..string.char(8)..'advanced'..string.char(5)..'tests'..string.char(8)..'powerdns'..string.char(3)..'com' | |
| 185 | if ffi.string(ret_ptr[0]) ~= expectedQname then | |
| 186 | print('invalid qname') | |
| 187 | print(ffi.string(ret_ptr[0])) | |
| 188 | return false | |
| 189 | end | |
| 190 | ||
| 191 | local rcode = ffi.C.dnsdist_ffi_dnsquestion_get_rcode(dq) | |
| 192 | if rcode ~= 0 then | |
| 193 | print('invalid rcode') | |
| 194 | return false | |
| 195 | end | |
| 196 | ||
| 197 | local opcode = ffi.C.dnsdist_ffi_dnsquestion_get_opcode(dq) | |
| 198 | if qtype == DNSQType.A and opcode ~= DNSOpcode.Query then | |
| 199 | print('invalid opcode') | |
| 200 | return false | |
| 201 | elseif qtype == DNSQType.SOA and opcode ~= DNSOpcode.Update then | |
| 202 | print('invalid opcode') | |
| 203 | return false | |
| 204 | end | |
| 205 | ||
| 206 | local dnssecok = ffi.C.dnsdist_ffi_dnsquestion_get_do(dq) | |
| 207 | if dnssecok ~= false then | |
| 208 | print('invalid DNSSEC OK') | |
| 209 | return false | |
| 210 | end | |
| 211 | ||
| 212 | local len = ffi.C.dnsdist_ffi_dnsquestion_get_len(dq) | |
| 213 | if len ~= 61 then | |
| 214 | print('invalid length') | |
| 215 | print(len) | |
| 216 | return false | |
| 217 | end | |
| 218 | ||
| 219 | local tag = ffi.C.dnsdist_ffi_dnsquestion_get_tag(dq, 'a-tag') | |
| 220 | if ffi.string(tag) ~= 'a-value' then | |
| 221 | print('invalid tag value') | |
| 222 | print(ffi.string(tag)) | |
| 223 | return false | |
| 224 | end | |
| 225 | ||
| 226 | return true | |
| 227 | end | |
| 228 | ]] | |
| 229 | ||
| 230 | local actionfunction = [[ | |
| 231 | local ffi = require("ffi") | |
| 232 | ||
| 233 | return function(dq) | |
| 234 | local qtype = ffi.C.dnsdist_ffi_dnsquestion_get_qtype(dq) | |
| 235 | if qtype == DNSQType.A then | |
| 236 | local str = "192.0.2.1" | |
| 237 | local buf = ffi.new("char[?]", #str + 1) | |
| 238 | ffi.copy(buf, str) | |
| 239 | ffi.C.dnsdist_ffi_dnsquestion_set_result(dq, buf, #str) | |
| 240 | return DNSAction.Spoof | |
| 241 | elseif qtype == DNSQType.SOA then | |
| 242 | ffi.C.dnsdist_ffi_dnsquestion_set_rcode(dq, DNSRCode.REFUSED) | |
| 243 | return DNSAction.Refused | |
| 244 | end | |
| 245 | end | |
| 246 | ]] | |
| 247 | ||
| 248 | local settagfunction = [[ | |
| 249 | local ffi = require("ffi") | |
| 250 | ||
| 251 | return function(dq) | |
| 252 | ffi.C.dnsdist_ffi_dnsquestion_set_tag(dq, 'a-tag', 'a-value') | |
| 253 | return DNSAction.None | |
| 254 | end | |
| 255 | ]] | |
| 256 | ||
| 257 | addAction(AllRule(), LuaFFIPerThreadAction(settagfunction)) | |
| 258 | addAction(LuaFFIPerThreadRule(rulefunction), LuaFFIPerThreadAction(actionfunction)) | |
| 259 | -- newServer{address="127.0.0.1:%s"} | |
| 260 | """ | |
| 261 | ||
| 262 | def testAdvancedLuaPerthreadFFI(self): | |
| 263 | """ | |
| 264 | Lua FFI: Test the Lua FFI per-thread interface | |
| 265 | """ | |
| 266 | name = 'luaffiperthread.advanced.tests.powerdns.com.' | |
| 267 | query = dns.message.make_query(name, 'A', 'IN') | |
| 268 | # dnsdist set RA = RD for spoofed responses | |
| 269 | query.flags &= ~dns.flags.RD | |
| 270 | ||
| 271 | response = dns.message.make_response(query) | |
| 272 | rrset = dns.rrset.from_text(name, | |
| 273 | 60, | |
| 274 | dns.rdataclass.IN, | |
| 275 | dns.rdatatype.A, | |
| 276 | '192.0.2.1') | |
| 277 | response.answer.append(rrset) | |
| 278 | ||
| 279 | for method in ("sendUDPQuery", "sendTCPQuery"): | |
| 280 | sender = getattr(self, method) | |
| 281 | (_, receivedResponse) = sender(query, response=None, useQueue=False) | |
| 282 | self.assertEqual(receivedResponse, response) | |
| 283 | ||
| 284 | def testAdvancedLuaFFIPerThreadUpdate(self): | |
| 285 | """ | |
| 286 | Lua FFI: Test the Lua FFI per-thread interface via an update | |
| 287 | """ | |
| 288 | name = 'luaffiperthread.advanced.tests.powerdns.com.' | |
| 289 | query = dns.message.make_query(name, 'SOA', 'IN') | |
| 290 | query.set_opcode(dns.opcode.UPDATE) | |
| 291 | # dnsdist set RA = RD for spoofed responses | |
| 292 | query.flags &= ~dns.flags.RD | |
| 293 | ||
| 294 | response = dns.message.make_response(query) | |
| 295 | response.set_rcode(dns.rcode.REFUSED) | |
| 296 | ||
| 297 | for method in ("sendUDPQuery", "sendTCPQuery"): | |
| 298 | sender = getattr(self, method) | |
| 299 | (_, receivedResponse) = sender(query, response=None, useQueue=False) | |
| 300 | self.assertEqual(receivedResponse, response) |