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12471842 PL |
1 | /* |
2 | * This file is part of PowerDNS or dnsdist. | |
3 | * Copyright -- PowerDNS.COM B.V. and its contributors | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of version 2 of the GNU General Public License as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * In addition, for the avoidance of any doubt, permission is granted to | |
10 | * link this program with OpenSSL and to (re)distribute the binaries | |
11 | * produced as the result of such linking. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
21 | */ | |
6bb38cd6 RG |
22 | |
23 | #include <dirent.h> | |
24 | #include <fstream> | |
aff9ca62 PD |
25 | |
26 | // for OpenBSD, sys/socket.h needs to come before net/if.h | |
27 | #include <sys/socket.h> | |
6bb38cd6 | 28 | #include <net/if.h> |
aff9ca62 | 29 | |
9ef9b494 | 30 | #include <sys/types.h> |
6bb38cd6 | 31 | #include <sys/stat.h> |
df111b53 | 32 | #include <thread> |
6bb38cd6 RG |
33 | |
34 | #include "dnsdist.hh" | |
b5521206 | 35 | #include "dnsdist-console.hh" |
e7c732b8 | 36 | #include "dnsdist-ecs.hh" |
6bb38cd6 | 37 | #include "dnsdist-lua.hh" |
03b00917 | 38 | #include "dnsdist-rings.hh" |
5d4e1ef8 | 39 | #include "dnsdist-secpoll.hh" |
6bb38cd6 | 40 | |
df111b53 | 41 | #include "base64.hh" |
b7860997 | 42 | #include "dnswriter.hh" |
6bb38cd6 | 43 | #include "dolog.hh" |
0e41337b | 44 | #include "lock.hh" |
a227f47d | 45 | #include "protobuf.hh" |
6bb38cd6 RG |
46 | #include "sodcrypto.hh" |
47 | ||
48 | #include <boost/logic/tribool.hpp> | |
1720247e | 49 | #include <boost/lexical_cast.hpp> |
df111b53 | 50 | |
6ab65223 PL |
51 | #ifdef HAVE_SYSTEMD |
52 | #include <systemd/sd-daemon.h> | |
53 | #endif | |
54 | ||
df111b53 | 55 | using std::thread; |
56 | ||
6bb38cd6 | 57 | static vector<std::function<void(void)>>* g_launchWork = nullptr; |
2e72cc0e | 58 | |
6bb38cd6 RG |
59 | boost::tribool g_noLuaSideEffect; |
60 | static bool g_included{false}; | |
d8d85a30 | 61 | |
6bb38cd6 RG |
62 | /* this is a best effort way to prevent logging calls with no side-effects in the output of delta() |
63 | Functions can declare setLuaNoSideEffect() and if nothing else does declare a side effect, or nothing | |
64 | has done so before on this invocation, this call won't be part of delta() output */ | |
65 | void setLuaNoSideEffect() | |
153d5065 | 66 | { |
6bb38cd6 RG |
67 | if(g_noLuaSideEffect==false) // there has been a side effect already |
68 | return; | |
69 | g_noLuaSideEffect=true; | |
70 | } | |
153d5065 | 71 | |
6bb38cd6 | 72 | void setLuaSideEffect() |
d8d85a30 | 73 | { |
6bb38cd6 RG |
74 | g_noLuaSideEffect=false; |
75 | } | |
f850b032 | 76 | |
6bb38cd6 RG |
77 | bool getLuaNoSideEffect() |
78 | { | |
d7a26377 RG |
79 | if (g_noLuaSideEffect) { |
80 | return true; | |
81 | } | |
82 | return false; | |
d8d85a30 | 83 | } |
84 | ||
6bb38cd6 | 85 | void resetLuaSideEffect() |
2d11d1b2 | 86 | { |
6bb38cd6 | 87 | g_noLuaSideEffect = boost::logic::indeterminate; |
2d11d1b2 | 88 | } |
89 | ||
6bb38cd6 RG |
90 | typedef std::unordered_map<std::string, boost::variant<bool, int, std::string, std::vector<std::pair<int,int> > > > localbind_t; |
91 | ||
0230e350 | 92 | static void parseLocalBindVars(boost::optional<localbind_t> vars, bool& reusePort, int& tcpFastOpenQueueSize, std::string& interface, std::set<int>& cpus) |
efd35aa8 RG |
93 | { |
94 | if (vars) { | |
efd35aa8 RG |
95 | if (vars->count("reusePort")) { |
96 | reusePort = boost::get<bool>((*vars)["reusePort"]); | |
97 | } | |
98 | if (vars->count("tcpFastOpenQueueSize")) { | |
99 | tcpFastOpenQueueSize = boost::get<int>((*vars)["tcpFastOpenQueueSize"]); | |
100 | } | |
101 | if (vars->count("interface")) { | |
102 | interface = boost::get<std::string>((*vars)["interface"]); | |
103 | } | |
f0e4dcba RG |
104 | if (vars->count("cpus")) { |
105 | for (const auto cpu : boost::get<std::vector<std::pair<int,int>>>((*vars)["cpus"])) { | |
106 | cpus.insert(cpu.second); | |
107 | } | |
108 | } | |
efd35aa8 RG |
109 | } |
110 | } | |
111 | ||
39006144 | 112 | #if defined(HAVE_DNS_OVER_TLS) || defined(HAVE_DNS_OVER_HTTPS) |
bf8cd40d | 113 | static bool loadTLSCertificateAndKeys(const std::string& context, std::vector<std::pair<std::string, std::string>>& pairs, boost::variant<std::string, std::vector<std::pair<int,std::string>>> certFiles, boost::variant<std::string, std::vector<std::pair<int,std::string>>> keyFiles) |
8ef43a02 RG |
114 | { |
115 | if (certFiles.type() == typeid(std::string) && keyFiles.type() == typeid(std::string)) { | |
116 | auto certFile = boost::get<std::string>(certFiles); | |
117 | auto keyFile = boost::get<std::string>(keyFiles); | |
bf8cd40d RG |
118 | pairs.clear(); |
119 | pairs.push_back({certFile, keyFile}); | |
8ef43a02 RG |
120 | } |
121 | else if (certFiles.type() == typeid(std::vector<std::pair<int,std::string>>) && keyFiles.type() == typeid(std::vector<std::pair<int,std::string>>)) | |
122 | { | |
123 | auto certFilesVect = boost::get<std::vector<std::pair<int,std::string>>>(certFiles); | |
124 | auto keyFilesVect = boost::get<std::vector<std::pair<int,std::string>>>(keyFiles); | |
125 | if (certFilesVect.size() == keyFilesVect.size()) { | |
bf8cd40d | 126 | pairs.clear(); |
8ef43a02 | 127 | for (size_t idx = 0; idx < certFilesVect.size(); idx++) { |
bf8cd40d | 128 | pairs.push_back({certFilesVect.at(idx).second, keyFilesVect.at(idx).second}); |
8ef43a02 RG |
129 | } |
130 | } | |
131 | else { | |
bf8cd40d RG |
132 | errlog("Error, mismatching number of certificates and keys in call to %s()!", context); |
133 | g_outputBuffer="Error, mismatching number of certificates and keys in call to " + context + "()!"; | |
8ef43a02 RG |
134 | return false; |
135 | } | |
136 | } | |
137 | else { | |
bf8cd40d RG |
138 | errlog("Error, mismatching number of certificates and keys in call to %s()!", context); |
139 | g_outputBuffer="Error, mismatching number of certificates and keys in call to " + context + "()!"; | |
8ef43a02 RG |
140 | return false; |
141 | } | |
142 | ||
143 | return true; | |
144 | } | |
39006144 | 145 | #endif // defined(HAVE_DNS_OVER_TLS) || defined(HAVE_DNS_OVER_HTTPS) |
8ef43a02 | 146 | |
6bb38cd6 | 147 | void setupLuaConfig(bool client) |
df111b53 | 148 | { |
98650fde | 149 | typedef std::unordered_map<std::string, boost::variant<bool, std::string, vector<pair<int, std::string> >, DownstreamState::checkfunc_t > > newserver_t; |
6f2a4580 | 150 | g_lua.writeFunction("inClientStartup", [client]() { |
541dd48f | 151 | return client && !g_configurationDone; |
6f2a4580 PD |
152 | }); |
153 | ||
6bb38cd6 | 154 | g_lua.writeFunction("newServer", |
a5526b57 CH |
155 | [client](boost::variant<string,newserver_t> pvars, boost::optional<int> qps) { |
156 | setLuaSideEffect(); | |
157 | ||
158 | std::shared_ptr<DownstreamState> ret = std::make_shared<DownstreamState>(ComboAddress()); | |
159 | newserver_t vars; | |
160 | ||
161 | ComboAddress serverAddr; | |
162 | std::string serverAddressStr; | |
163 | if(auto addrStr = boost::get<string>(&pvars)) { | |
164 | serverAddressStr = *addrStr; | |
165 | if(qps) { | |
166 | vars["qps"] = std::to_string(*qps); | |
167 | } | |
168 | } else { | |
169 | vars = boost::get<newserver_t>(pvars); | |
170 | serverAddressStr = boost::get<string>(vars["address"]); | |
171 | } | |
2e72cc0e | 172 | |
a5526b57 CH |
173 | try { |
174 | serverAddr = ComboAddress(serverAddressStr, 53); | |
175 | } | |
176 | catch(const PDNSException& e) { | |
177 | g_outputBuffer="Error creating new server: "+string(e.reason); | |
178 | errlog("Error creating new server with address %s: %s", serverAddressStr, e.reason); | |
179 | return ret; | |
180 | } | |
181 | catch(std::exception& e) { | |
182 | g_outputBuffer="Error creating new server: "+string(e.what()); | |
183 | errlog("Error creating new server with address %s: %s", serverAddressStr, e.what()); | |
184 | return ret; | |
185 | } | |
2e72cc0e | 186 | |
a5526b57 CH |
187 | if(IsAnyAddress(serverAddr)) { |
188 | g_outputBuffer="Error creating new server: invalid address for a downstream server."; | |
189 | errlog("Error creating new server: %s is not a valid address for a downstream server", serverAddressStr); | |
190 | return ret; | |
191 | } | |
192 | ||
193 | ComboAddress sourceAddr; | |
194 | unsigned int sourceItf = 0; | |
195 | size_t numberOfSockets = 1; | |
196 | std::set<int> cpus; | |
fbe2a2e0 RG |
197 | |
198 | if(vars.count("source")) { | |
199 | /* handle source in the following forms: | |
200 | - v4 address ("192.0.2.1") | |
201 | - v6 address ("2001:DB8::1") | |
202 | - interface name ("eth0") | |
203 | - v4 address and interface name ("192.0.2.1@eth0") | |
204 | - v6 address and interface name ("2001:DB8::1@eth0") | |
205 | */ | |
206 | const string source = boost::get<string>(vars["source"]); | |
207 | bool parsed = false; | |
208 | std::string::size_type pos = source.find("@"); | |
209 | if (pos == std::string::npos) { | |
210 | /* no '@', try to parse that as a valid v4/v6 address */ | |
211 | try { | |
212 | sourceAddr = ComboAddress(source); | |
213 | parsed = true; | |
214 | } | |
215 | catch(...) | |
216 | { | |
217 | } | |
218 | } | |
219 | ||
220 | if (parsed == false) | |
221 | { | |
222 | /* try to parse as interface name, or v4/v6@itf */ | |
223 | string itfName = source.substr(pos == std::string::npos ? 0 : pos + 1); | |
224 | unsigned int itfIdx = if_nametoindex(itfName.c_str()); | |
225 | ||
226 | if (itfIdx != 0) { | |
227 | if (pos == 0 || pos == std::string::npos) { | |
228 | /* "eth0" or "@eth0" */ | |
229 | sourceItf = itfIdx; | |
230 | } | |
231 | else { | |
232 | /* "192.0.2.1@eth0" */ | |
233 | sourceAddr = ComboAddress(source.substr(0, pos)); | |
234 | sourceItf = itfIdx; | |
235 | } | |
236 | } | |
237 | else | |
238 | { | |
239 | warnlog("Dismissing source %s because '%s' is not a valid interface name", source, itfName); | |
240 | } | |
241 | } | |
242 | } | |
243 | ||
e998def2 RG |
244 | if (vars.count("sockets")) { |
245 | numberOfSockets = std::stoul(boost::get<string>(vars["sockets"])); | |
246 | if (numberOfSockets == 0) { | |
247 | warnlog("Dismissing invalid number of sockets '%s', using 1 instead", boost::get<string>(vars["sockets"])); | |
248 | numberOfSockets = 1; | |
249 | } | |
250 | } | |
150105a2 | 251 | |
a5526b57 CH |
252 | if(client) { |
253 | // do not construct DownstreamState now, it would try binding sockets. | |
254 | return ret; | |
255 | } | |
256 | ret=std::make_shared<DownstreamState>(serverAddr, sourceAddr, sourceItf, numberOfSockets); | |
fbe2a2e0 | 257 | |
df111b53 | 258 | if(vars.count("qps")) { |
af619119 RG |
259 | int qpsVal=std::stoi(boost::get<string>(vars["qps"])); |
260 | ret->qps=QPSLimiter(qpsVal, qpsVal); | |
df111b53 | 261 | } |
262 | ||
df111b53 | 263 | if(vars.count("order")) { |
335da0ba | 264 | ret->order=std::stoi(boost::get<string>(vars["order"])); |
df111b53 | 265 | } |
266 | ||
267 | if(vars.count("weight")) { | |
278403d3 DM |
268 | try { |
269 | int weightVal=std::stoi(boost::get<string>(vars["weight"])); | |
270 | ||
271 | if(weightVal < 1) { | |
272 | errlog("Error creating new server: downstream weight value must be greater than 0."); | |
273 | return ret; | |
274 | } | |
275 | ||
f2caf657 | 276 | ret->setWeight(weightVal); |
278403d3 DM |
277 | } |
278 | catch(std::exception& e) { | |
279 | // std::stoi will throw an exception if the string isn't in a value int range | |
280 | errlog("Error creating new server: downstream weight value must be between %s and %s", 1, std::numeric_limits<int>::max()); | |
281 | return ret; | |
282 | } | |
df111b53 | 283 | } |
284 | ||
3f6d07a4 | 285 | if(vars.count("retries")) { |
335da0ba | 286 | ret->retries=std::stoi(boost::get<string>(vars["retries"])); |
3f6d07a4 RG |
287 | } |
288 | ||
7c9bf18d | 289 | if(vars.count("checkInterval")) { |
290 | ret->checkInterval=static_cast<unsigned int>(std::stoul(boost::get<string>(vars["checkInterval"]))); | |
291 | } | |
292 | ||
b40cffe7 RG |
293 | if(vars.count("tcpConnectTimeout")) { |
294 | ret->tcpConnectTimeout=std::stoi(boost::get<string>(vars["tcpConnectTimeout"])); | |
295 | } | |
296 | ||
3f6d07a4 | 297 | if(vars.count("tcpSendTimeout")) { |
335da0ba | 298 | ret->tcpSendTimeout=std::stoi(boost::get<string>(vars["tcpSendTimeout"])); |
3f6d07a4 RG |
299 | } |
300 | ||
301 | if(vars.count("tcpRecvTimeout")) { | |
335da0ba | 302 | ret->tcpRecvTimeout=std::stoi(boost::get<string>(vars["tcpRecvTimeout"])); |
3f6d07a4 RG |
303 | } |
304 | ||
284d460c | 305 | if(vars.count("tcpFastOpen")) { |
d987f632 RG |
306 | bool fastOpen = boost::get<bool>(vars["tcpFastOpen"]); |
307 | if (fastOpen) { | |
308 | #ifdef MSG_FASTOPEN | |
309 | ret->tcpFastOpen=true; | |
310 | #else | |
311 | warnlog("TCP Fast Open has been configured on downstream server %s but is not supported", boost::get<string>(vars["address"])); | |
312 | #endif | |
313 | } | |
284d460c RG |
314 | } |
315 | ||
18eeccc9 RG |
316 | if(vars.count("name")) { |
317 | ret->name=boost::get<string>(vars["name"]); | |
318 | } | |
319 | ||
1720247e | 320 | if (vars.count("id")) { |
f2caf657 | 321 | ret->setId(boost::lexical_cast<boost::uuids::uuid>(boost::get<string>(vars["id"]))); |
1720247e CHB |
322 | } |
323 | ||
ad485896 RG |
324 | if(vars.count("checkName")) { |
325 | ret->checkName=DNSName(boost::get<string>(vars["checkName"])); | |
326 | } | |
327 | ||
328 | if(vars.count("checkType")) { | |
329 | ret->checkType=boost::get<string>(vars["checkType"]); | |
330 | } | |
331 | ||
de9f7157 RG |
332 | if(vars.count("checkClass")) { |
333 | ret->checkClass=std::stoi(boost::get<string>(vars["checkClass"])); | |
334 | } | |
335 | ||
98650fde RG |
336 | if(vars.count("checkFunction")) { |
337 | ret->checkFunction= boost::get<DownstreamState::checkfunc_t>(vars["checkFunction"]); | |
338 | } | |
339 | ||
b7e6f4a1 RG |
340 | if(vars.count("checkTimeout")) { |
341 | ret->checkTimeout = std::stoi(boost::get<string>(vars["checkTimeout"])); | |
342 | } | |
343 | ||
21830638 RG |
344 | if(vars.count("setCD")) { |
345 | ret->setCD=boost::get<bool>(vars["setCD"]); | |
346 | } | |
347 | ||
a6e02424 RG |
348 | if(vars.count("mustResolve")) { |
349 | ret->mustResolve=boost::get<bool>(vars["mustResolve"]); | |
350 | } | |
351 | ||
ca404e94 RG |
352 | if(vars.count("useClientSubnet")) { |
353 | ret->useECS=boost::get<bool>(vars["useClientSubnet"]); | |
354 | } | |
355 | ||
996db8e9 RG |
356 | if(vars.count("disableZeroScope")) { |
357 | ret->disableZeroScope=boost::get<bool>(vars["disableZeroScope"]); | |
358 | } | |
359 | ||
5602f131 DM |
360 | if(vars.count("ipBindAddrNoPort")) { |
361 | ret->ipBindAddrNoPort=boost::get<bool>(vars["ipBindAddrNoPort"]); | |
18f707fa | 362 | } |
5cc8371b RG |
363 | |
364 | if(vars.count("addXPF")) { | |
c85f69a8 | 365 | ret->xpfRRCode=std::stoi(boost::get<string>(vars["addXPF"])); |
5602f131 DM |
366 | } |
367 | ||
9e87dcb8 RG |
368 | if(vars.count("maxCheckFailures")) { |
369 | ret->maxCheckFailures=std::stoi(boost::get<string>(vars["maxCheckFailures"])); | |
370 | } | |
371 | ||
1b633bec RG |
372 | if(vars.count("rise")) { |
373 | ret->minRiseSuccesses=std::stoi(boost::get<string>(vars["rise"])); | |
374 | } | |
375 | ||
3a8ee8bf RG |
376 | if(vars.count("cpus")) { |
377 | for (const auto cpu : boost::get<vector<pair<int,string>>>(vars["cpus"])) { | |
378 | cpus.insert(std::stoi(cpu.second)); | |
379 | } | |
380 | } | |
381 | ||
8c82c02d RG |
382 | /* this needs to be done _AFTER_ the order has been set, |
383 | since the server are kept ordered inside the pool */ | |
384 | auto localPools = g_pools.getCopy(); | |
385 | if(vars.count("pool")) { | |
386 | if(auto* pool = boost::get<string>(&vars["pool"])) { | |
387 | ret->pools.insert(*pool); | |
388 | } | |
389 | else { | |
390 | auto pools = boost::get<vector<pair<int, string> > >(vars["pool"]); | |
391 | for(auto& p : pools) { | |
392 | ret->pools.insert(p.second); | |
393 | } | |
394 | } | |
395 | for(const auto& poolName: ret->pools) { | |
396 | addServerToPool(localPools, poolName, ret); | |
397 | } | |
398 | } | |
399 | else { | |
400 | addServerToPool(localPools, "", ret); | |
401 | } | |
402 | g_pools.setState(localPools); | |
403 | ||
7565f4e6 | 404 | if (ret->connected) { |
5d7e6765 RG |
405 | ret->threadStarted.test_and_set(); |
406 | ||
7565f4e6 | 407 | if(g_launchWork) { |
3a8ee8bf | 408 | g_launchWork->push_back([ret,cpus]() { |
6d31c8b6 | 409 | ret->tid = thread(responderThread, ret); |
3a8ee8bf RG |
410 | if (!cpus.empty()) { |
411 | mapThreadToCPUList(ret->tid.native_handle(), cpus); | |
412 | } | |
2e72cc0e | 413 | }); |
7565f4e6 RG |
414 | } |
415 | else { | |
6d31c8b6 | 416 | ret->tid = thread(responderThread, ret); |
3a8ee8bf RG |
417 | if (!cpus.empty()) { |
418 | mapThreadToCPUList(ret->tid.native_handle(), cpus); | |
419 | } | |
7565f4e6 | 420 | } |
2e72cc0e | 421 | } |
df111b53 | 422 | |
ecbe9133 | 423 | auto states = g_dstates.getCopy(); |
e5a14b2b | 424 | states.push_back(ret); |
425 | std::stable_sort(states.begin(), states.end(), [](const decltype(ret)& a, const decltype(ret)& b) { | |
df111b53 | 426 | return a->order < b->order; |
427 | }); | |
ecbe9133 | 428 | g_dstates.setState(states); |
df111b53 | 429 | return ret; |
430 | } ); | |
431 | ||
6bb38cd6 | 432 | g_lua.writeFunction("rmServer", |
df111b53 | 433 | [](boost::variant<std::shared_ptr<DownstreamState>, int> var) |
6bb38cd6 | 434 | { |
f758857a | 435 | setLuaSideEffect(); |
886e2cf2 RG |
436 | shared_ptr<DownstreamState> server; |
437 | auto* rem = boost::get<shared_ptr<DownstreamState>>(&var); | |
438 | auto states = g_dstates.getCopy(); | |
439 | if(rem) { | |
440 | server = *rem; | |
441 | } | |
442 | else { | |
443 | int idx = boost::get<int>(var); | |
0f06cd4c | 444 | server = states.at(idx); |
886e2cf2 RG |
445 | } |
446 | auto localPools = g_pools.getCopy(); | |
447 | for (const string& poolName : server->pools) { | |
448 | removeServerFromPool(localPools, poolName, server); | |
449 | } | |
0f06cd4c RG |
450 | /* the server might also be in the default pool */ |
451 | removeServerFromPool(localPools, "", server); | |
886e2cf2 RG |
452 | g_pools.setState(localPools); |
453 | states.erase(remove(states.begin(), states.end(), server), states.end()); | |
454 | g_dstates.setState(states); | |
df111b53 | 455 | } ); |
456 | ||
df111b53 | 457 | g_lua.writeFunction("setServerPolicy", [](ServerPolicy policy) { |
f758857a | 458 | setLuaSideEffect(); |
e5a14b2b | 459 | g_policy.setState(policy); |
df111b53 | 460 | }); |
70a57b05 | 461 | g_lua.writeFunction("setServerPolicyLua", [](string name, policyfunc_t policy) { |
f758857a | 462 | setLuaSideEffect(); |
a1b1a29d | 463 | g_policy.setState(ServerPolicy{name, policy, true}); |
df111b53 | 464 | }); |
465 | ||
466 | g_lua.writeFunction("showServerPolicy", []() { | |
f758857a | 467 | setLuaSideEffect(); |
ecbe9133 | 468 | g_outputBuffer=g_policy.getLocal()->name+"\n"; |
df111b53 | 469 | }); |
470 | ||
f758857a | 471 | g_lua.writeFunction("truncateTC", [](bool tc) { setLuaSideEffect(); g_truncateTC=tc; }); |
472 | g_lua.writeFunction("fixupCase", [](bool fu) { setLuaSideEffect(); g_fixupCase=fu; }); | |
df111b53 | 473 | |
df111b53 | 474 | g_lua.writeFunction("addACL", [](const std::string& domain) { |
f758857a | 475 | setLuaSideEffect(); |
e5a14b2b | 476 | g_ACL.modify([domain](NetmaskGroup& nmg) { nmg.addMask(domain); }); |
df111b53 | 477 | }); |
2e72cc0e | 478 | |
efd35aa8 | 479 | g_lua.writeFunction("setLocal", [client](const std::string& addr, boost::optional<localbind_t> vars) { |
f758857a | 480 | setLuaSideEffect(); |
5949b95b | 481 | if(client) |
482 | return; | |
85e4ce52 RG |
483 | if (g_configurationDone) { |
484 | g_outputBuffer="setLocal cannot be used at runtime!\n"; | |
485 | return; | |
486 | } | |
efd35aa8 RG |
487 | bool reusePort = false; |
488 | int tcpFastOpenQueueSize = 0; | |
489 | std::string interface; | |
f0e4dcba | 490 | std::set<int> cpus; |
efd35aa8 | 491 | |
0230e350 | 492 | parseLocalBindVars(vars, reusePort, tcpFastOpenQueueSize, interface, cpus); |
efd35aa8 | 493 | |
5949b95b | 494 | try { |
495 | ComboAddress loc(addr, 53); | |
6e9fd124 RG |
496 | for (auto it = g_frontends.begin(); it != g_frontends.end(); ) { |
497 | /* TLS and DNSCrypt frontends are separate */ | |
498 | if ((*it)->tlsFrontend == nullptr && (*it)->dnscryptCtx == nullptr) { | |
499 | it = g_frontends.erase(it); | |
500 | } | |
501 | else { | |
502 | ++it; | |
503 | } | |
504 | } | |
505 | ||
506 | // only works pre-startup, so no sync necessary | |
507 | g_frontends.push_back(std::unique_ptr<ClientState>(new ClientState(loc, false, reusePort, tcpFastOpenQueueSize, interface, cpus))); | |
0230e350 | 508 | g_frontends.push_back(std::unique_ptr<ClientState>(new ClientState(loc, true, reusePort, tcpFastOpenQueueSize, interface, cpus))); |
5949b95b | 509 | } |
6e9fd124 | 510 | catch(const std::exception& e) { |
5949b95b | 511 | g_outputBuffer="Error: "+string(e.what())+"\n"; |
512 | } | |
513 | }); | |
514 | ||
efd35aa8 | 515 | g_lua.writeFunction("addLocal", [client](const std::string& addr, boost::optional<localbind_t> vars) { |
f758857a | 516 | setLuaSideEffect(); |
2e72cc0e | 517 | if(client) |
518 | return; | |
85e4ce52 RG |
519 | if (g_configurationDone) { |
520 | g_outputBuffer="addLocal cannot be used at runtime!\n"; | |
521 | return; | |
522 | } | |
efd35aa8 RG |
523 | bool reusePort = false; |
524 | int tcpFastOpenQueueSize = 0; | |
525 | std::string interface; | |
f0e4dcba | 526 | std::set<int> cpus; |
efd35aa8 | 527 | |
0230e350 | 528 | parseLocalBindVars(vars, reusePort, tcpFastOpenQueueSize, interface, cpus); |
efd35aa8 | 529 | |
2e72cc0e | 530 | try { |
531 | ComboAddress loc(addr, 53); | |
6e9fd124 RG |
532 | // only works pre-startup, so no sync necessary |
533 | g_frontends.push_back(std::unique_ptr<ClientState>(new ClientState(loc, false, reusePort, tcpFastOpenQueueSize, interface, cpus))); | |
0230e350 | 534 | g_frontends.push_back(std::unique_ptr<ClientState>(new ClientState(loc, true, reusePort, tcpFastOpenQueueSize, interface, cpus))); |
2e72cc0e | 535 | } |
536 | catch(std::exception& e) { | |
56d44226 RG |
537 | g_outputBuffer="Error: "+string(e.what())+"\n"; |
538 | errlog("Error while trying to listen on %s: %s\n", addr, string(e.what())); | |
2e72cc0e | 539 | } |
540 | }); | |
6bb38cd6 | 541 | |
e4944ea0 | 542 | g_lua.writeFunction("setACL", [](boost::variant<string,vector<pair<int, string>>> inp) { |
f758857a | 543 | setLuaSideEffect(); |
e5a14b2b | 544 | NetmaskGroup nmg; |
e4944ea0 | 545 | if(auto str = boost::get<string>(&inp)) { |
546 | nmg.addMask(*str); | |
547 | } | |
548 | else for(const auto& p : boost::get<vector<pair<int,string>>>(inp)) { | |
e5a14b2b | 549 | nmg.addMask(p.second); |
cffde2fd | 550 | } |
551 | g_ACL.setState(nmg); | |
df111b53 | 552 | }); |
6bb38cd6 | 553 | |
df111b53 | 554 | g_lua.writeFunction("showACL", []() { |
f758857a | 555 | setLuaNoSideEffect(); |
df111b53 | 556 | vector<string> vec; |
cffde2fd | 557 | |
a9c2e4ab | 558 | g_ACL.getLocal()->toStringVector(&vec); |
cffde2fd | 559 | |
df111b53 | 560 | for(const auto& s : vec) |
cffde2fd | 561 | g_outputBuffer+=s+"\n"; |
562 | ||
df111b53 | 563 | }); |
6bb38cd6 | 564 | |
6ab65223 PL |
565 | g_lua.writeFunction("shutdown", []() { |
566 | #ifdef HAVE_SYSTEMD | |
567 | sd_notify(0, "STOPPING=1"); | |
a227f47d RG |
568 | #endif /* HAVE_SYSTEMD */ |
569 | #if 0 | |
570 | // Useful for debugging leaks, but might lead to race under load | |
571 | // since other threads are still runing. | |
572 | for(auto& frontend : g_tlslocals) { | |
573 | frontend->cleanup(); | |
574 | } | |
575 | g_tlslocals.clear(); | |
576 | #ifdef HAVE_PROTOBUF | |
577 | google::protobuf::ShutdownProtobufLibrary(); | |
578 | #endif /* HAVE_PROTOBUF */ | |
579 | #endif /* 0 */ | |
6ab65223 PL |
580 | _exit(0); |
581 | } ); | |
df111b53 | 582 | |
7f768697 CHB |
583 | typedef std::unordered_map<std::string, boost::variant<bool, std::string> > showserversopts_t; |
584 | ||
585 | g_lua.writeFunction("showServers", [](boost::optional<showserversopts_t> vars) { | |
f758857a | 586 | setLuaNoSideEffect(); |
7f768697 CHB |
587 | bool showUUIDs = false; |
588 | if (vars) { | |
589 | if (vars->count("showUUIDs")) { | |
590 | showUUIDs = boost::get<bool>((*vars)["showUUIDs"]); | |
591 | } | |
df111b53 | 592 | } |
7f768697 CHB |
593 | try { |
594 | ostringstream ret; | |
595 | boost::format fmt; | |
596 | if (showUUIDs) { | |
597 | fmt = boost::format("%1$-3d %15$-36s %2$-20.20s %|62t|%3% %|92t|%4$5s %|88t|%5$7.1f %|103t|%6$7d %|106t|%7$3d %|115t|%8$2d %|117t|%9$10d %|123t|%10$7d %|128t|%11$5.1f %|146t|%12$5.1f %|152t|%13$11d %14%" ); | |
598 | // 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | |
599 | ret << (fmt % "#" % "Name" % "Address" % "State" % "Qps" % "Qlim" % "Ord" % "Wt" % "Queries" % "Drops" % "Drate" % "Lat" % "Outstanding" % "Pools" % "UUID") << endl; | |
600 | } else { | |
601 | fmt = boost::format("%1$-3d %2$-20.20s %|25t|%3% %|55t|%4$5s %|51t|%5$7.1f %|66t|%6$7d %|69t|%7$3d %|78t|%8$2d %|80t|%9$10d %|86t|%10$7d %|91t|%11$5.1f %|109t|%12$5.1f %|115t|%13$11d %14%" ); | |
602 | ret << (fmt % "#" % "Name" % "Address" % "State" % "Qps" % "Qlim" % "Ord" % "Wt" % "Queries" % "Drops" % "Drate" % "Lat" % "Outstanding" % "Pools") << endl; | |
603 | } | |
df111b53 | 604 | |
7f768697 CHB |
605 | uint64_t totQPS{0}, totQueries{0}, totDrops{0}; |
606 | int counter=0; | |
607 | auto states = g_dstates.getLocal(); | |
608 | for(const auto& s : *states) { | |
609 | string status = s->getStatus(); | |
610 | string pools; | |
611 | for(auto& p : s->pools) { | |
612 | if(!pools.empty()) | |
613 | pools+=" "; | |
614 | pools+=p; | |
615 | } | |
616 | if (showUUIDs) { | |
617 | ret << (fmt % counter % s->name % s->remote.toStringWithPort() % | |
618 | status % | |
619 | s->queryLoad % s->qps.getRate() % s->order % s->weight % s->queries.load() % s->reuseds.load() % (s->dropRate) % (s->latencyUsec/1000.0) % s->outstanding.load() % pools % s->id) << endl; | |
620 | } else { | |
621 | ret << (fmt % counter % s->name % s->remote.toStringWithPort() % | |
622 | status % | |
623 | s->queryLoad % s->qps.getRate() % s->order % s->weight % s->queries.load() % s->reuseds.load() % (s->dropRate) % (s->latencyUsec/1000.0) % s->outstanding.load() % pools) << endl; | |
624 | } | |
625 | totQPS += s->queryLoad; | |
626 | totQueries += s->queries.load(); | |
627 | totDrops += s->reuseds.load(); | |
628 | ++counter; | |
629 | } | |
630 | if (showUUIDs) { | |
631 | ret<< (fmt % "All" % "" % "" % "" | |
632 | % | |
633 | (double)totQPS % "" % "" % "" % totQueries % totDrops % "" % "" % "" % "" % "" ) << endl; | |
634 | } else { | |
635 | ret<< (fmt % "All" % "" % "" % "" | |
636 | % | |
637 | (double)totQPS % "" % "" % "" % totQueries % totDrops % "" % "" % "" % "" ) << endl; | |
638 | } | |
639 | ||
640 | g_outputBuffer=ret.str(); | |
641 | } catch(std::exception& e) { | |
642 | g_outputBuffer=e.what(); | |
643 | throw; | |
644 | } | |
df111b53 | 645 | }); |
646 | ||
6bb38cd6 RG |
647 | g_lua.writeFunction("getServers", []() { |
648 | setLuaNoSideEffect(); | |
649 | vector<pair<int, std::shared_ptr<DownstreamState> > > ret; | |
650 | int count=1; | |
651 | for(const auto& s : g_dstates.getCopy()) { | |
652 | ret.push_back(make_pair(count++, s)); | |
653 | } | |
654 | return ret; | |
8499caaf | 655 | }); |
e27097e4 | 656 | |
6bb38cd6 RG |
657 | g_lua.writeFunction("getPoolServers", [](string pool) { |
658 | return getDownstreamCandidates(g_pools.getCopy(), pool); | |
b1bec9f0 RG |
659 | }); |
660 | ||
6bb38cd6 RG |
661 | g_lua.writeFunction("getServer", [client](int i) { |
662 | if (client) | |
663 | return std::make_shared<DownstreamState>(ComboAddress()); | |
664 | return g_dstates.getCopy().at(i); | |
731774a8 | 665 | }); |
666 | ||
6bb38cd6 | 667 | g_lua.writeFunction("carbonServer", [](const std::string& address, boost::optional<string> ourName, |
48341d8f | 668 | boost::optional<unsigned int> interval, boost::optional<string> namespace_name, |
f7a645ec RG |
669 | boost::optional<string> instance_name) { |
670 | setLuaSideEffect(); | |
671 | auto ours = g_carbon.getCopy(); | |
672 | ours.push_back({ | |
673 | ComboAddress(address, 2003), | |
674 | (namespace_name && !namespace_name->empty()) ? *namespace_name : "dnsdist", | |
675 | ourName ? *ourName : "", | |
676 | (instance_name && !instance_name->empty()) ? *instance_name : "main" , | |
677 | interval ? *interval : 30 | |
678 | }); | |
679 | g_carbon.setState(ours); | |
680 | }); | |
87c605c4 | 681 | |
6bb38cd6 | 682 | g_lua.writeFunction("webserver", [client](const std::string& address, const std::string& password, const boost::optional<std::string> apiKey, const boost::optional<std::map<std::string, std::string> > customHeaders) { |
f758857a | 683 | setLuaSideEffect(); |
6bb38cd6 RG |
684 | if(client) |
685 | return; | |
686 | ComboAddress local(address); | |
687 | try { | |
688 | int sock = SSocket(local.sin4.sin_family, SOCK_STREAM, 0); | |
689 | SSetsockopt(sock, SOL_SOCKET, SO_REUSEADDR, 1); | |
690 | SBind(sock, local); | |
691 | SListen(sock, 5); | |
692 | auto launch=[sock, local, password, apiKey, customHeaders]() { | |
32c97b56 CHB |
693 | setWebserverPassword(password); |
694 | setWebserverAPIKey(apiKey); | |
695 | setWebserverCustomHeaders(customHeaders); | |
80dbd7d2 | 696 | thread t(dnsdistWebserverThread, sock, local); |
6bb38cd6 RG |
697 | t.detach(); |
698 | }; | |
699 | if(g_launchWork) | |
700 | g_launchWork->push_back(launch); | |
701 | else | |
702 | launch(); | |
731774a8 | 703 | } |
704 | catch(std::exception& e) { | |
6bb38cd6 RG |
705 | g_outputBuffer="Unable to bind to webserver socket on " + local.toStringWithPort() + ": " + e.what(); |
706 | errlog("Unable to bind to webserver socket on %s: %s", local.toStringWithPort(), e.what()); | |
731774a8 | 707 | } |
731774a8 | 708 | |
709 | }); | |
710 | ||
32c97b56 CHB |
711 | typedef std::unordered_map<std::string, boost::variant<std::string, std::map<std::string, std::string>> > webserveropts_t; |
712 | ||
713 | g_lua.writeFunction("setWebserverConfig", [](boost::optional<webserveropts_t> vars) { | |
80dbd7d2 | 714 | setLuaSideEffect(); |
32c97b56 CHB |
715 | |
716 | if (!vars) { | |
717 | return ; | |
718 | } | |
719 | if(vars->count("password")) { | |
720 | const std::string password = boost::get<std::string>(vars->at("password")); | |
721 | ||
722 | setWebserverPassword(password); | |
723 | } | |
724 | if(vars->count("apiKey")) { | |
32c97b56 CHB |
725 | const std::string apiKey = boost::get<std::string>(vars->at("apiKey")); |
726 | ||
727 | setWebserverAPIKey(apiKey); | |
728 | } | |
729 | if(vars->count("customHeaders")) { | |
730 | const boost::optional<std::map<std::string, std::string> > headers = boost::get<std::map<std::string, std::string> >(vars->at("customHeaders")); | |
731 | ||
732 | setWebserverCustomHeaders(headers); | |
733 | } | |
80dbd7d2 CHB |
734 | }); |
735 | ||
6bb38cd6 | 736 | g_lua.writeFunction("controlSocket", [client](const std::string& str) { |
87c605c4 | 737 | setLuaSideEffect(); |
6bb38cd6 | 738 | ComboAddress local(str, 5199); |
832c1792 | 739 | |
6bb38cd6 RG |
740 | if(client) { |
741 | g_serverControl = local; | |
87c605c4 RG |
742 | return; |
743 | } | |
731774a8 | 744 | |
9c9b4998 RG |
745 | g_consoleEnabled = true; |
746 | #ifdef HAVE_LIBSODIUM | |
747 | if (g_configurationDone && g_consoleKey.empty()) { | |
748 | warnlog("Warning, the console has been enabled via 'controlSocket()' but no key has been set with 'setKey()' so all connections will fail until a key has been set"); | |
749 | } | |
750 | #endif | |
751 | ||
6bb38cd6 RG |
752 | try { |
753 | int sock = SSocket(local.sin4.sin_family, SOCK_STREAM, 0); | |
754 | SSetsockopt(sock, SOL_SOCKET, SO_REUSEADDR, 1); | |
755 | SBind(sock, local); | |
756 | SListen(sock, 5); | |
757 | auto launch=[sock, local]() { | |
758 | thread t(controlThread, sock, local); | |
759 | t.detach(); | |
760 | }; | |
761 | if(g_launchWork) | |
762 | g_launchWork->push_back(launch); | |
763 | else | |
764 | launch(); | |
ae3dfa48 | 765 | |
6bb38cd6 RG |
766 | } |
767 | catch(std::exception& e) { | |
768 | g_outputBuffer="Unable to bind to control socket on " + local.toStringWithPort() + ": " + e.what(); | |
769 | errlog("Unable to bind to control socket on %s: %s", local.toStringWithPort(), e.what()); | |
770 | } | |
63beb26d G |
771 | }); |
772 | ||
b5521206 RG |
773 | g_lua.writeFunction("addConsoleACL", [](const std::string& netmask) { |
774 | setLuaSideEffect(); | |
775 | #ifndef HAVE_LIBSODIUM | |
776 | warnlog("Allowing remote access to the console while libsodium support has not been enabled is not secure, and will result in cleartext communications"); | |
777 | #endif | |
778 | ||
779 | g_consoleACL.modify([netmask](NetmaskGroup& nmg) { nmg.addMask(netmask); }); | |
780 | }); | |
781 | ||
782 | g_lua.writeFunction("setConsoleACL", [](boost::variant<string,vector<pair<int, string>>> inp) { | |
783 | setLuaSideEffect(); | |
784 | ||
785 | #ifndef HAVE_LIBSODIUM | |
786 | warnlog("Allowing remote access to the console while libsodium support has not been enabled is not secure, and will result in cleartext communications"); | |
787 | #endif | |
788 | ||
789 | NetmaskGroup nmg; | |
790 | if(auto str = boost::get<string>(&inp)) { | |
791 | nmg.addMask(*str); | |
792 | } | |
793 | else for(const auto& p : boost::get<vector<pair<int,string>>>(inp)) { | |
794 | nmg.addMask(p.second); | |
795 | } | |
796 | g_consoleACL.setState(nmg); | |
797 | }); | |
798 | ||
799 | g_lua.writeFunction("showConsoleACL", []() { | |
800 | setLuaNoSideEffect(); | |
801 | ||
802 | #ifndef HAVE_LIBSODIUM | |
803 | warnlog("Allowing remote access to the console while libsodium support has not been enabled is not secure, and will result in cleartext communications"); | |
804 | #endif | |
805 | ||
806 | vector<string> vec; | |
807 | g_consoleACL.getLocal()->toStringVector(&vec); | |
808 | ||
809 | for(const auto& s : vec) { | |
810 | g_outputBuffer += s + "\n"; | |
811 | } | |
812 | }); | |
813 | ||
6bb38cd6 RG |
814 | g_lua.writeFunction("clearQueryCounters", []() { |
815 | unsigned int size{0}; | |
816 | { | |
817 | WriteLock wl(&g_qcount.queryLock); | |
818 | size = g_qcount.records.size(); | |
819 | g_qcount.records.clear(); | |
820 | } | |
6eecd4c2 | 821 | |
6bb38cd6 RG |
822 | boost::format fmt("%d records cleared from query counter buffer\n"); |
823 | g_outputBuffer = (fmt % size).str(); | |
2332b03c | 824 | }); |
825 | ||
6bb38cd6 RG |
826 | g_lua.writeFunction("getQueryCounters", [](boost::optional<unsigned int> optMax) { |
827 | setLuaNoSideEffect(); | |
828 | ReadLock rl(&g_qcount.queryLock); | |
829 | g_outputBuffer = "query counting is currently: "; | |
830 | g_outputBuffer+= g_qcount.enabled ? "enabled" : "disabled"; | |
831 | g_outputBuffer+= (boost::format(" (%d records in buffer)\n") % g_qcount.records.size()).str(); | |
f39b7598 | 832 | |
6bb38cd6 RG |
833 | boost::format fmt("%-3d %s: %d request(s)\n"); |
834 | QueryCountRecords::iterator it; | |
835 | unsigned int max = optMax ? *optMax : 10; | |
836 | unsigned int index{1}; | |
837 | for(it = g_qcount.records.begin(); it != g_qcount.records.end() && index <= max; ++it, ++index) { | |
838 | g_outputBuffer += (fmt % index % it->first % it->second).str(); | |
839 | } | |
808c5ef7 | 840 | }); |
841 | ||
6bb38cd6 | 842 | g_lua.writeFunction("setQueryCount", [](bool enabled) { g_qcount.enabled=enabled; }); |
ae3dfa48 | 843 | |
6bb38cd6 RG |
844 | g_lua.writeFunction("setQueryCountFilter", [](QueryCountFilter func) { |
845 | g_qcount.filter = func; | |
886e2cf2 RG |
846 | }); |
847 | ||
6bb38cd6 RG |
848 | g_lua.writeFunction("makeKey", []() { |
849 | setLuaNoSideEffect(); | |
850 | g_outputBuffer="setKey("+newKey()+")\n"; | |
6bba426c | 851 | }); |
852 | ||
6bb38cd6 | 853 | g_lua.writeFunction("setKey", [](const std::string& key) { |
b5521206 | 854 | if(!g_configurationDone && ! g_consoleKey.empty()) { // this makes sure the commandline -k key prevails over dnsdist.conf |
6bb38cd6 RG |
855 | return; // but later setKeys() trump the -k value again |
856 | } | |
b5521206 RG |
857 | #ifndef HAVE_LIBSODIUM |
858 | warnlog("Calling setKey() while libsodium support has not been enabled is not secure, and will result in cleartext communications"); | |
859 | #endif | |
6bba426c | 860 | |
6bb38cd6 RG |
861 | setLuaSideEffect(); |
862 | string newkey; | |
863 | if(B64Decode(key, newkey) < 0) { | |
864 | g_outputBuffer=string("Unable to decode ")+key+" as Base64"; | |
865 | errlog("%s", g_outputBuffer); | |
866 | } | |
2332b03c | 867 | else |
b5521206 | 868 | g_consoleKey=newkey; |
2332b03c | 869 | }); |
870 | ||
6bb38cd6 RG |
871 | g_lua.writeFunction("testCrypto", [](boost::optional<string> optTestMsg) |
872 | { | |
873 | setLuaNoSideEffect(); | |
874 | #ifdef HAVE_LIBSODIUM | |
875 | try { | |
876 | string testmsg; | |
2332b03c | 877 | |
6bb38cd6 RG |
878 | if (optTestMsg) { |
879 | testmsg = *optTestMsg; | |
880 | } | |
881 | else { | |
882 | testmsg = "testStringForCryptoTests"; | |
883 | } | |
6eecd4c2 | 884 | |
6bb38cd6 RG |
885 | SodiumNonce sn, sn2; |
886 | sn.init(); | |
887 | sn2=sn; | |
b5521206 RG |
888 | string encrypted = sodEncryptSym(testmsg, g_consoleKey, sn); |
889 | string decrypted = sodDecryptSym(encrypted, g_consoleKey, sn2); | |
4ed8dfeb | 890 | |
6bb38cd6 RG |
891 | sn.increment(); |
892 | sn2.increment(); | |
b7860997 | 893 | |
b5521206 RG |
894 | encrypted = sodEncryptSym(testmsg, g_consoleKey, sn); |
895 | decrypted = sodDecryptSym(encrypted, g_consoleKey, sn2); | |
36da3ecd | 896 | |
6bb38cd6 RG |
897 | if(testmsg == decrypted) |
898 | g_outputBuffer="Everything is ok!\n"; | |
899 | else | |
900 | g_outputBuffer="Crypto failed..\n"; | |
b7860997 | 901 | |
6bb38cd6 RG |
902 | } |
903 | catch(...) { | |
904 | g_outputBuffer="Crypto failed..\n"; | |
905 | } | |
906 | #else | |
907 | g_outputBuffer="Crypto not available.\n"; | |
908 | #endif | |
909 | }); | |
b7860997 | 910 | |
6bb38cd6 | 911 | g_lua.writeFunction("setTCPRecvTimeout", [](int timeout) { g_tcpRecvTimeout=timeout; }); |
89cb6f9a | 912 | |
6bb38cd6 | 913 | g_lua.writeFunction("setTCPSendTimeout", [](int timeout) { g_tcpSendTimeout=timeout; }); |
89cb6f9a | 914 | |
6bb38cd6 | 915 | g_lua.writeFunction("setUDPTimeout", [](int timeout) { g_udpTimeout=timeout; }); |
d3826006 | 916 | |
6bb38cd6 RG |
917 | g_lua.writeFunction("setMaxUDPOutstanding", [](uint16_t max) { |
918 | if (!g_configurationDone) { | |
919 | g_maxOutstanding = max; | |
920 | } else { | |
921 | g_outputBuffer="Max UDP outstanding cannot be altered at runtime!\n"; | |
b7860997 | 922 | } |
55baa1f2 RG |
923 | }); |
924 | ||
6bb38cd6 RG |
925 | g_lua.writeFunction("setMaxTCPClientThreads", [](uint64_t max) { |
926 | if (!g_configurationDone) { | |
927 | g_maxTCPClientThreads = max; | |
928 | } else { | |
929 | g_outputBuffer="Maximum TCP client threads count cannot be altered at runtime!\n"; | |
930 | } | |
55baa1f2 RG |
931 | }); |
932 | ||
6bb38cd6 RG |
933 | g_lua.writeFunction("setMaxTCPQueuedConnections", [](uint64_t max) { |
934 | if (!g_configurationDone) { | |
935 | g_maxTCPQueuedConnections = max; | |
936 | } else { | |
937 | g_outputBuffer="The maximum number of queued TCP connections cannot be altered at runtime!\n"; | |
938 | } | |
55baa1f2 RG |
939 | }); |
940 | ||
6bb38cd6 RG |
941 | g_lua.writeFunction("setMaxTCPQueriesPerConnection", [](size_t max) { |
942 | if (!g_configurationDone) { | |
943 | g_maxTCPQueriesPerConn = max; | |
944 | } else { | |
945 | g_outputBuffer="The maximum number of queries per TCP connection cannot be altered at runtime!\n"; | |
946 | } | |
57c61ce9 RG |
947 | }); |
948 | ||
6bb38cd6 RG |
949 | g_lua.writeFunction("setMaxTCPConnectionsPerClient", [](size_t max) { |
950 | if (!g_configurationDone) { | |
951 | g_maxTCPConnectionsPerClient = max; | |
952 | } else { | |
953 | g_outputBuffer="The maximum number of TCP connection per client cannot be altered at runtime!\n"; | |
954 | } | |
57c61ce9 RG |
955 | }); |
956 | ||
6bb38cd6 RG |
957 | g_lua.writeFunction("setMaxTCPConnectionDuration", [](size_t max) { |
958 | if (!g_configurationDone) { | |
959 | g_maxTCPConnectionDuration = max; | |
960 | } else { | |
961 | g_outputBuffer="The maximum duration of a TCP connection cannot be altered at runtime!\n"; | |
962 | } | |
788c3243 RG |
963 | }); |
964 | ||
6bb38cd6 | 965 | g_lua.writeFunction("setCacheCleaningDelay", [](uint32_t delay) { g_cacheCleaningDelay = delay; }); |
0570f37c | 966 | |
6bb38cd6 | 967 | g_lua.writeFunction("setCacheCleaningPercentage", [](uint16_t percentage) { if (percentage < 100) g_cacheCleaningPercentage = percentage; else g_cacheCleaningPercentage = 100; }); |
0570f37c | 968 | |
6bb38cd6 | 969 | g_lua.writeFunction("setECSSourcePrefixV4", [](uint16_t prefix) { g_ECSSourcePrefixV4=prefix; }); |
f39b7598 | 970 | |
6bb38cd6 | 971 | g_lua.writeFunction("setECSSourcePrefixV6", [](uint16_t prefix) { g_ECSSourcePrefixV6=prefix; }); |
0570f37c | 972 | |
6bb38cd6 | 973 | g_lua.writeFunction("setECSOverride", [](bool override) { g_ECSOverride=override; }); |
df111b53 | 974 | |
53c57da7 RG |
975 | g_lua.writeFunction("setPreserveTrailingData", [](bool preserve) { g_preserveTrailingData = preserve; }); |
976 | ||
6bb38cd6 RG |
977 | g_lua.writeFunction("showDynBlocks", []() { |
978 | setLuaNoSideEffect(); | |
979 | auto slow = g_dynblockNMG.getCopy(); | |
980 | struct timespec now; | |
981 | gettime(&now); | |
1d3ba133 RG |
982 | boost::format fmt("%-24s %8d %8d %-10s %-20s %s\n"); |
983 | g_outputBuffer = (fmt % "What" % "Seconds" % "Blocks" % "Warning" % "Action" % "Reason").str(); | |
6bb38cd6 RG |
984 | for(const auto& e: slow) { |
985 | if(now < e->second.until) | |
1d3ba133 | 986 | g_outputBuffer+= (fmt % e->first.toString() % (e->second.until.tv_sec - now.tv_sec) % e->second.blocks % (e->second.warning ? "true" : "false") % DNSAction::typeToString(e->second.action != DNSAction::Action::None ? e->second.action : g_dynBlockAction) % e->second.reason).str(); |
6bb38cd6 RG |
987 | } |
988 | auto slow2 = g_dynblockSMT.getCopy(); | |
989 | slow2.visit([&now, &fmt](const SuffixMatchTree<DynBlock>& node) { | |
990 | if(now <node.d_value.until) { | |
991 | string dom("empty"); | |
992 | if(!node.d_value.domain.empty()) | |
993 | dom = node.d_value.domain.toString(); | |
1d3ba133 | 994 | g_outputBuffer+= (fmt % dom % (node.d_value.until.tv_sec - now.tv_sec) % node.d_value.blocks % (node.d_value.warning ? "true" : "false") % DNSAction::typeToString(node.d_value.action != DNSAction::Action::None ? node.d_value.action : g_dynBlockAction) % node.d_value.reason).str(); |
6bb38cd6 RG |
995 | } |
996 | }); | |
832c1792 | 997 | |
520eb5a0 | 998 | }); |
df111b53 | 999 | |
6bb38cd6 | 1000 | g_lua.writeFunction("clearDynBlocks", []() { |
f758857a | 1001 | setLuaSideEffect(); |
6bb38cd6 RG |
1002 | nmts_t nmg; |
1003 | g_dynblockNMG.setState(nmg); | |
1004 | SuffixMatchTree<DynBlock> smt; | |
1005 | g_dynblockSMT.setState(smt); | |
1006 | }); | |
1007 | ||
1008 | g_lua.writeFunction("addDynBlocks", | |
f8327125 | 1009 | [](const std::unordered_map<ComboAddress,unsigned int, ComboAddress::addressOnlyHash, ComboAddress::addressOnlyEqual>& m, const std::string& msg, boost::optional<int> seconds, boost::optional<DNSAction::Action> action) { |
6ddb008a RG |
1010 | if (m.empty()) { |
1011 | return; | |
1012 | } | |
6bb38cd6 RG |
1013 | setLuaSideEffect(); |
1014 | auto slow = g_dynblockNMG.getCopy(); | |
1015 | struct timespec until, now; | |
1016 | gettime(&now); | |
1017 | until=now; | |
1018 | int actualSeconds = seconds ? *seconds : 10; | |
1019 | until.tv_sec += actualSeconds; | |
1020 | for(const auto& capair : m) { | |
1021 | unsigned int count = 0; | |
1022 | auto got = slow.lookup(Netmask(capair.first)); | |
1023 | bool expired=false; | |
1024 | if(got) { | |
1025 | if(until < got->second.until) // had a longer policy | |
1026 | continue; | |
1027 | if(now < got->second.until) // only inherit count on fresh query we are extending | |
1028 | count=got->second.blocks; | |
1029 | else | |
1030 | expired=true; | |
1031 | } | |
1032 | DynBlock db{msg,until,DNSName(),(action ? *action : DNSAction::Action::None)}; | |
1033 | db.blocks=count; | |
1034 | if(!got || expired) | |
1035 | warnlog("Inserting dynamic block for %s for %d seconds: %s", capair.first.toString(), actualSeconds, msg); | |
1036 | slow.insert(Netmask(capair.first)).second=db; | |
1037 | } | |
1038 | g_dynblockNMG.setState(slow); | |
1039 | }); | |
1040 | ||
1041 | g_lua.writeFunction("addDynBlockSMT", | |
1042 | [](const vector<pair<unsigned int, string> >&names, const std::string& msg, boost::optional<int> seconds, boost::optional<DNSAction::Action> action) { | |
6ddb008a RG |
1043 | if (names.empty()) { |
1044 | return; | |
1045 | } | |
6bb38cd6 RG |
1046 | setLuaSideEffect(); |
1047 | auto slow = g_dynblockSMT.getCopy(); | |
1048 | struct timespec until, now; | |
1049 | gettime(&now); | |
1050 | until=now; | |
1051 | int actualSeconds = seconds ? *seconds : 10; | |
1052 | until.tv_sec += actualSeconds; | |
1053 | ||
1054 | for(const auto& capair : names) { | |
1055 | unsigned int count = 0; | |
1056 | DNSName domain(capair.second); | |
1057 | auto got = slow.lookup(domain); | |
1058 | bool expired=false; | |
1059 | if(got) { | |
1060 | if(until < got->until) // had a longer policy | |
1061 | continue; | |
1062 | if(now < got->until) // only inherit count on fresh query we are extending | |
1063 | count=got->blocks; | |
1064 | else | |
1065 | expired=true; | |
1066 | } | |
1067 | ||
1068 | DynBlock db{msg,until,domain,(action ? *action : DNSAction::Action::None)}; | |
1069 | db.blocks=count; | |
1070 | if(!got || expired) | |
1071 | warnlog("Inserting dynamic block for %s for %d seconds: %s", domain, actualSeconds, msg); | |
1072 | slow.add(domain, db); | |
1073 | } | |
1074 | g_dynblockSMT.setState(slow); | |
1075 | }); | |
1076 | ||
1077 | g_lua.writeFunction("setDynBlocksAction", [](DNSAction::Action action) { | |
1078 | if (!g_configurationDone) { | |
3d60b39a | 1079 | if (action == DNSAction::Action::Drop || action == DNSAction::Action::NoOp || action == DNSAction::Action::Nxdomain || action == DNSAction::Action::Refused || action == DNSAction::Action::Truncate || action == DNSAction::Action::NoRecurse) { |
6bb38cd6 RG |
1080 | g_dynBlockAction = action; |
1081 | } | |
1082 | else { | |
3d60b39a | 1083 | errlog("Dynamic blocks action can only be Drop, NoOp, NXDomain, Refused, Truncate or NoRecurse!"); |
1084 | g_outputBuffer="Dynamic blocks action can only be Drop, NoOp, NXDomain, Refused, Truncate or NoRecurse!\n"; | |
6bb38cd6 RG |
1085 | } |
1086 | } else { | |
1087 | g_outputBuffer="Dynamic blocks action cannot be altered at runtime!\n"; | |
1088 | } | |
df111b53 | 1089 | }); |
832c1792 | 1090 | |
6bb38cd6 RG |
1091 | g_lua.writeFunction("addDNSCryptBind", [](const std::string& addr, const std::string& providerName, const std::string& certFile, const std::string keyFile, boost::optional<localbind_t> vars) { |
1092 | if (g_configurationDone) { | |
1093 | g_outputBuffer="addDNSCryptBind cannot be used at runtime!\n"; | |
1094 | return; | |
1095 | } | |
1096 | #ifdef HAVE_DNSCRYPT | |
6bb38cd6 RG |
1097 | bool reusePort = false; |
1098 | int tcpFastOpenQueueSize = 0; | |
1099 | std::string interface; | |
1100 | std::set<int> cpus; | |
df111b53 | 1101 | |
0230e350 | 1102 | parseLocalBindVars(vars, reusePort, tcpFastOpenQueueSize, interface, cpus); |
df111b53 | 1103 | |
6bb38cd6 | 1104 | try { |
43234e76 | 1105 | auto ctx = std::make_shared<DNSCryptContext>(providerName, certFile, keyFile); |
6e9fd124 RG |
1106 | |
1107 | /* UDP */ | |
1108 | auto cs = std::unique_ptr<ClientState>(new ClientState(ComboAddress(addr, 443), false, reusePort, tcpFastOpenQueueSize, interface, cpus)); | |
1109 | cs->dnscryptCtx = ctx; | |
1110 | g_dnsCryptLocals.push_back(ctx); | |
1111 | g_frontends.push_back(std::move(cs)); | |
1112 | ||
1113 | /* TCP */ | |
1114 | cs = std::unique_ptr<ClientState>(new ClientState(ComboAddress(addr, 443), true, reusePort, tcpFastOpenQueueSize, interface, cpus)); | |
1115 | cs->dnscryptCtx = ctx; | |
1116 | g_frontends.push_back(std::move(cs)); | |
df111b53 | 1117 | } |
6bb38cd6 RG |
1118 | catch(std::exception& e) { |
1119 | errlog(e.what()); | |
1120 | g_outputBuffer="Error: "+string(e.what())+"\n"; | |
1121 | } | |
1122 | #else | |
1123 | g_outputBuffer="Error: DNSCrypt support is not enabled.\n"; | |
1124 | #endif | |
4d5959e6 | 1125 | |
df111b53 | 1126 | }); |
1127 | ||
6bb38cd6 | 1128 | g_lua.writeFunction("showDNSCryptBinds", []() { |
f758857a | 1129 | setLuaNoSideEffect(); |
6bb38cd6 RG |
1130 | #ifdef HAVE_DNSCRYPT |
1131 | ostringstream ret; | |
43234e76 RG |
1132 | boost::format fmt("%1$-3d %2% %|25t|%3$-20.20s"); |
1133 | ret << (fmt % "#" % "Address" % "Provider Name") << endl; | |
6bb38cd6 RG |
1134 | size_t idx = 0; |
1135 | ||
6e9fd124 RG |
1136 | for (const auto& frontend : g_frontends) { |
1137 | const std::shared_ptr<DNSCryptContext> ctx = frontend->dnscryptCtx; | |
1138 | ret<< (fmt % idx % frontend->local.toStringWithPort() % ctx->getProviderName()) << endl; | |
6bb38cd6 | 1139 | idx++; |
df111b53 | 1140 | } |
df111b53 | 1141 | |
6bb38cd6 RG |
1142 | g_outputBuffer=ret.str(); |
1143 | #else | |
1144 | g_outputBuffer="Error: DNSCrypt support is not enabled.\n"; | |
1145 | #endif | |
886e2cf2 | 1146 | }); |
df111b53 | 1147 | |
43234e76 | 1148 | g_lua.writeFunction("getDNSCryptBind", [](size_t idx) { |
6bb38cd6 RG |
1149 | setLuaNoSideEffect(); |
1150 | #ifdef HAVE_DNSCRYPT | |
43234e76 | 1151 | std::shared_ptr<DNSCryptContext> ret = nullptr; |
6bb38cd6 | 1152 | if (idx < g_dnsCryptLocals.size()) { |
6e9fd124 | 1153 | ret = g_dnsCryptLocals.at(idx); |
d92708ed | 1154 | } |
6bb38cd6 RG |
1155 | return ret; |
1156 | #else | |
1157 | g_outputBuffer="Error: DNSCrypt support is not enabled.\n"; | |
1158 | #endif | |
d92708ed RG |
1159 | }); |
1160 | ||
6bb38cd6 RG |
1161 | g_lua.writeFunction("generateDNSCryptProviderKeys", [](const std::string& publicKeyFile, const std::string privateKeyFile) { |
1162 | setLuaNoSideEffect(); | |
1163 | #ifdef HAVE_DNSCRYPT | |
1164 | unsigned char publicKey[DNSCRYPT_PROVIDER_PUBLIC_KEY_SIZE]; | |
1165 | unsigned char privateKey[DNSCRYPT_PROVIDER_PRIVATE_KEY_SIZE]; | |
1166 | sodium_mlock(privateKey, sizeof(privateKey)); | |
4c6f4321 | 1167 | |
6bb38cd6 | 1168 | try { |
43234e76 | 1169 | DNSCryptContext::generateProviderKeys(publicKey, privateKey); |
4c6f4321 | 1170 | |
6bb38cd6 RG |
1171 | ofstream pubKStream(publicKeyFile); |
1172 | pubKStream.write((char*) publicKey, sizeof(publicKey)); | |
1173 | pubKStream.close(); | |
df111b53 | 1174 | |
6bb38cd6 RG |
1175 | ofstream privKStream(privateKeyFile); |
1176 | privKStream.write((char*) privateKey, sizeof(privateKey)); | |
1177 | privKStream.close(); | |
df111b53 | 1178 | |
43234e76 | 1179 | g_outputBuffer="Provider fingerprint is: " + DNSCryptContext::getProviderFingerprint(publicKey) + "\n"; |
6bb38cd6 RG |
1180 | } |
1181 | catch(std::exception& e) { | |
1182 | errlog(e.what()); | |
1183 | g_outputBuffer="Error: "+string(e.what())+"\n"; | |
1184 | } | |
df111b53 | 1185 | |
6bb38cd6 RG |
1186 | sodium_memzero(privateKey, sizeof(privateKey)); |
1187 | sodium_munlock(privateKey, sizeof(privateKey)); | |
1188 | #else | |
1189 | g_outputBuffer="Error: DNSCrypt support is not enabled.\n"; | |
1190 | #endif | |
aeb36780 RG |
1191 | }); |
1192 | ||
6bb38cd6 RG |
1193 | g_lua.writeFunction("printDNSCryptProviderFingerprint", [](const std::string& publicKeyFile) { |
1194 | setLuaNoSideEffect(); | |
1195 | #ifdef HAVE_DNSCRYPT | |
1196 | unsigned char publicKey[DNSCRYPT_PROVIDER_PUBLIC_KEY_SIZE]; | |
aeb36780 | 1197 | |
6bb38cd6 RG |
1198 | try { |
1199 | ifstream file(publicKeyFile); | |
1200 | file.read((char *) &publicKey, sizeof(publicKey)); | |
df111b53 | 1201 | |
6bb38cd6 RG |
1202 | if (file.fail()) |
1203 | throw std::runtime_error("Invalid dnscrypt provider public key file " + publicKeyFile); | |
df111b53 | 1204 | |
6bb38cd6 | 1205 | file.close(); |
43234e76 | 1206 | g_outputBuffer="Provider fingerprint is: " + DNSCryptContext::getProviderFingerprint(publicKey) + "\n"; |
6bb38cd6 RG |
1207 | } |
1208 | catch(std::exception& e) { | |
1209 | errlog(e.what()); | |
1210 | g_outputBuffer="Error: "+string(e.what())+"\n"; | |
1211 | } | |
1212 | #else | |
1213 | g_outputBuffer="Error: DNSCrypt support is not enabled.\n"; | |
1214 | #endif | |
df111b53 | 1215 | }); |
1216 | ||
501983cd | 1217 | #ifdef HAVE_DNSCRYPT |
43234e76 | 1218 | g_lua.writeFunction("generateDNSCryptCertificate", [](const std::string& providerPrivateKeyFile, const std::string& certificateFile, const std::string privateKeyFile, uint32_t serial, time_t begin, time_t end, boost::optional<DNSCryptExchangeVersion> version) { |
6bb38cd6 | 1219 | setLuaNoSideEffect(); |
43234e76 RG |
1220 | DNSCryptPrivateKey privateKey; |
1221 | DNSCryptCert cert; | |
42fae326 | 1222 | |
50bed881 | 1223 | try { |
43234e76 | 1224 | if (generateDNSCryptCertificate(providerPrivateKeyFile, serial, begin, end, version ? *version : DNSCryptExchangeVersion::VERSION1, cert, privateKey)) { |
6bb38cd6 | 1225 | privateKey.saveToFile(privateKeyFile); |
43234e76 | 1226 | DNSCryptContext::saveCertFromFile(cert, certificateFile); |
6bb38cd6 | 1227 | } |
50bed881 | 1228 | } |
6bb38cd6 RG |
1229 | catch(const std::exception& e) { |
1230 | errlog(e.what()); | |
1231 | g_outputBuffer="Error: "+string(e.what())+"\n"; | |
50bed881 | 1232 | } |
50bed881 | 1233 | }); |
501983cd | 1234 | #endif |
df111b53 | 1235 | |
6bb38cd6 RG |
1236 | g_lua.writeFunction("showPools", []() { |
1237 | setLuaNoSideEffect(); | |
df111b53 | 1238 | try { |
6bb38cd6 RG |
1239 | ostringstream ret; |
1240 | boost::format fmt("%1$-20.20s %|25t|%2$20s %|25t|%3$20s %|50t|%4%" ); | |
1241 | // 1 2 3 4 | |
1242 | ret << (fmt % "Name" % "Cache" % "ServerPolicy" % "Servers" ) << endl; | |
1243 | ||
1244 | const auto localPools = g_pools.getCopy(); | |
1245 | for (const auto& entry : localPools) { | |
1246 | const string& name = entry.first; | |
1247 | const std::shared_ptr<ServerPool> pool = entry.second; | |
1248 | string cache = pool->packetCache != nullptr ? pool->packetCache->toString() : ""; | |
1249 | string policy = g_policy.getLocal()->name; | |
1250 | if (pool->policy != nullptr) { | |
1251 | policy = pool->policy->name; | |
1252 | } | |
1253 | string servers; | |
1254 | ||
a1b1a29d | 1255 | for (const auto& server: pool->getServers()) { |
6bb38cd6 RG |
1256 | if (!servers.empty()) { |
1257 | servers += ", "; | |
1258 | } | |
1259 | if (!server.second->name.empty()) { | |
1260 | servers += server.second->name; | |
1261 | servers += " "; | |
1262 | } | |
1263 | servers += server.second->remote.toStringWithPort(); | |
1264 | } | |
1265 | ||
1266 | ret << (fmt % name % cache % policy % servers) << endl; | |
1267 | } | |
1268 | g_outputBuffer=ret.str(); | |
1269 | }catch(std::exception& e) { g_outputBuffer=e.what(); throw; } | |
1270 | }); | |
1271 | ||
1272 | g_lua.writeFunction("getPool", [client](const string& poolName) { | |
1273 | if (client) { | |
1274 | return std::make_shared<ServerPool>(); | |
df111b53 | 1275 | } |
6bb38cd6 RG |
1276 | auto localPools = g_pools.getCopy(); |
1277 | std::shared_ptr<ServerPool> pool = createPoolIfNotExists(localPools, poolName); | |
1278 | g_pools.setState(localPools); | |
1279 | return pool; | |
df111b53 | 1280 | }); |
1281 | ||
6bb38cd6 RG |
1282 | g_lua.writeFunction("setVerboseHealthChecks", [](bool verbose) { g_verboseHealthChecks=verbose; }); |
1283 | g_lua.writeFunction("setStaleCacheEntriesTTL", [](uint32_t ttl) { g_staleCacheEntriesTTL = ttl; }); | |
03ebf8b2 | 1284 | |
6bb38cd6 | 1285 | g_lua.writeFunction("showBinds", []() { |
f758857a | 1286 | setLuaNoSideEffect(); |
6bb38cd6 RG |
1287 | try { |
1288 | ostringstream ret; | |
ba7ec340 | 1289 | boost::format fmt("%1$-3d %2$-20.20s %|35t|%3$-20.20s %|57t|%4%" ); |
6bb38cd6 RG |
1290 | // 1 2 3 4 |
1291 | ret << (fmt % "#" % "Address" % "Protocol" % "Queries" ) << endl; | |
1292 | ||
1293 | size_t counter = 0; | |
1294 | for (const auto& front : g_frontends) { | |
ba7ec340 | 1295 | ret << (fmt % counter % front->local.toStringWithPort() % front->getType() % front->queries) << endl; |
6bb38cd6 | 1296 | counter++; |
0e41337b | 1297 | } |
6bb38cd6 RG |
1298 | g_outputBuffer=ret.str(); |
1299 | }catch(std::exception& e) { g_outputBuffer=e.what(); throw; } | |
0e5b3cff | 1300 | }); |
1301 | ||
6bb38cd6 | 1302 | g_lua.writeFunction("getBind", [](size_t num) { |
f758857a | 1303 | setLuaNoSideEffect(); |
6bb38cd6 RG |
1304 | ClientState* ret = nullptr; |
1305 | if(num < g_frontends.size()) { | |
6e9fd124 | 1306 | ret=g_frontends[num].get(); |
df111b53 | 1307 | } |
df111b53 | 1308 | return ret; |
6bb38cd6 | 1309 | }); |
df111b53 | 1310 | |
6bb38cd6 RG |
1311 | g_lua.writeFunction("help", [](boost::optional<std::string> command) { |
1312 | setLuaNoSideEffect(); | |
1313 | g_outputBuffer = ""; | |
1314 | for (const auto& keyword : g_consoleKeywords) { | |
1315 | if (!command) { | |
1316 | g_outputBuffer += keyword.toString() + "\n"; | |
1317 | } | |
1318 | else if (keyword.name == command) { | |
1319 | g_outputBuffer = keyword.toString() + "\n"; | |
1320 | return; | |
1321 | } | |
1322 | } | |
1323 | if (command) { | |
1324 | g_outputBuffer = "Nothing found for " + *command + "\n"; | |
786e4d8c | 1325 | } |
786e4d8c | 1326 | }); |
520eb5a0 | 1327 | |
6bb38cd6 | 1328 | g_lua.writeFunction("showVersion", []() { |
786e4d8c | 1329 | setLuaNoSideEffect(); |
6bb38cd6 | 1330 | g_outputBuffer = "dnsdist " + std::string(VERSION) + "\n"; |
786e4d8c RS |
1331 | }); |
1332 | ||
eb0ca460 PL |
1333 | g_lua.writeFunction("showSecurityStatus", []() { |
1334 | setLuaNoSideEffect(); | |
1335 | g_outputBuffer = std::to_string(g_stats.securityStatus) + "\n"; | |
1336 | }); | |
1337 | ||
6bb38cd6 RG |
1338 | #ifdef HAVE_EBPF |
1339 | g_lua.writeFunction("setDefaultBPFFilter", [](std::shared_ptr<BPFFilter> bpf) { | |
1340 | if (g_configurationDone) { | |
1341 | g_outputBuffer="setDefaultBPFFilter() cannot be used at runtime!\n"; | |
1342 | return; | |
1343 | } | |
1344 | g_defaultBPFFilter = bpf; | |
786e4d8c | 1345 | }); |
62edea30 | 1346 | |
6bb38cd6 RG |
1347 | g_lua.writeFunction("registerDynBPFFilter", [](std::shared_ptr<DynBPFFilter> dbpf) { |
1348 | if (dbpf) { | |
1349 | g_dynBPFFilters.push_back(dbpf); | |
520eb5a0 | 1350 | } |
520eb5a0 | 1351 | }); |
f5b58807 | 1352 | |
6bb38cd6 RG |
1353 | g_lua.writeFunction("unregisterDynBPFFilter", [](std::shared_ptr<DynBPFFilter> dbpf) { |
1354 | if (dbpf) { | |
1355 | for (auto it = g_dynBPFFilters.begin(); it != g_dynBPFFilters.end(); it++) { | |
1356 | if (*it == dbpf) { | |
1357 | g_dynBPFFilters.erase(it); | |
1358 | break; | |
1359 | } | |
1360 | } | |
1361 | } | |
2d11d1b2 | 1362 | }); |
df111b53 | 1363 | |
b6ba8123 | 1364 | g_lua.writeFunction("addBPFFilterDynBlocks", [](const std::unordered_map<ComboAddress,unsigned int, ComboAddress::addressOnlyHash, ComboAddress::addressOnlyEqual>& m, std::shared_ptr<DynBPFFilter> dynbpf, boost::optional<int> seconds, boost::optional<std::string> msg) { |
6bb38cd6 RG |
1365 | setLuaSideEffect(); |
1366 | struct timespec until, now; | |
1367 | clock_gettime(CLOCK_MONOTONIC, &now); | |
1368 | until=now; | |
1369 | int actualSeconds = seconds ? *seconds : 10; | |
1370 | until.tv_sec += actualSeconds; | |
1371 | for(const auto& capair : m) { | |
4900be3f RG |
1372 | if (dynbpf->block(capair.first, until)) { |
1373 | warnlog("Inserting eBPF dynamic block for %s for %d seconds: %s", capair.first.toString(), actualSeconds, msg ? *msg : ""); | |
1374 | } | |
6bb38cd6 | 1375 | } |
df111b53 | 1376 | }); |
62edea30 | 1377 | |
6bb38cd6 | 1378 | #endif /* HAVE_EBPF */ |
2d11d1b2 | 1379 | |
6bb38cd6 | 1380 | g_lua.writeFunction<std::unordered_map<string,uint64_t>()>("getStatisticsCounters", []() { |
f758857a | 1381 | setLuaNoSideEffect(); |
6bb38cd6 RG |
1382 | std::unordered_map<string,uint64_t> res; |
1383 | for(const auto& entry : g_stats.entries) { | |
1384 | if(const auto& val = boost::get<DNSDistStats::stat_t*>(&entry.second)) | |
1385 | res[entry.first] = (*val)->load(); | |
df111b53 | 1386 | } |
6bb38cd6 RG |
1387 | return res; |
1388 | }); | |
df111b53 | 1389 | |
6bb38cd6 RG |
1390 | g_lua.writeFunction("includeDirectory", [](const std::string& dirname) { |
1391 | if (g_configurationDone) { | |
1392 | errlog("includeDirectory() cannot be used at runtime!"); | |
1393 | g_outputBuffer="includeDirectory() cannot be used at runtime!\n"; | |
1394 | return; | |
df111b53 | 1395 | } |
1396 | ||
6bb38cd6 RG |
1397 | if (g_included) { |
1398 | errlog("includeDirectory() cannot be used recursively!"); | |
1399 | g_outputBuffer="includeDirectory() cannot be used recursively!\n"; | |
e12b3374 RG |
1400 | return; |
1401 | } | |
1402 | ||
6bb38cd6 RG |
1403 | g_included = true; |
1404 | struct stat st; | |
1405 | if (stat(dirname.c_str(), &st)) { | |
1406 | errlog("The included directory %s does not exist!", dirname.c_str()); | |
1407 | g_outputBuffer="The included directory " + dirname + " does not exist!"; | |
1408 | return; | |
df111b53 | 1409 | } |
df111b53 | 1410 | |
6bb38cd6 RG |
1411 | if (!S_ISDIR(st.st_mode)) { |
1412 | errlog("The included directory %s is not a directory!", dirname.c_str()); | |
1413 | g_outputBuffer="The included directory " + dirname + " is not a directory!"; | |
1414 | return; | |
6f6b4d69 | 1415 | } |
1416 | ||
6bb38cd6 RG |
1417 | DIR *dirp; |
1418 | struct dirent *ent; | |
1419 | std::list<std::string> files; | |
1420 | if (!(dirp = opendir(dirname.c_str()))) { | |
1421 | errlog("Error opening the included directory %s!", dirname.c_str()); | |
1422 | g_outputBuffer="Error opening the included directory " + dirname + "!"; | |
1423 | return; | |
6f6b4d69 | 1424 | } |
df111b53 | 1425 | |
6bb38cd6 RG |
1426 | while((ent = readdir(dirp)) != NULL) { |
1427 | if (ent->d_name[0] == '.') { | |
1428 | continue; | |
1429 | } | |
3f6d07a4 | 1430 | |
6bb38cd6 RG |
1431 | if (boost::ends_with(ent->d_name, ".conf")) { |
1432 | std::ostringstream namebuf; | |
1433 | namebuf << dirname.c_str() << "/" << ent->d_name; | |
2a817e5a | 1434 | |
6bb38cd6 RG |
1435 | if (stat(namebuf.str().c_str(), &st) || !S_ISREG(st.st_mode)) { |
1436 | continue; | |
1437 | } | |
e0b5e49d | 1438 | |
6bb38cd6 RG |
1439 | files.push_back(namebuf.str()); |
1440 | } | |
e41f8165 | 1441 | } |
e41f8165 | 1442 | |
6bb38cd6 RG |
1443 | closedir(dirp); |
1444 | files.sort(); | |
1445 | ||
1446 | for (auto file = files.begin(); file != files.end(); ++file) { | |
1447 | std::ifstream ifs(*file); | |
1448 | if (!ifs) { | |
1449 | warnlog("Unable to read configuration from '%s'", *file); | |
1450 | } else { | |
1451 | vinfolog("Read configuration from '%s'", *file); | |
1452 | } | |
26a6373d | 1453 | |
6bb38cd6 | 1454 | g_lua.executeCode(ifs); |
741ebe08 | 1455 | } |
26a6373d | 1456 | |
6bb38cd6 | 1457 | g_included = false; |
26a6373d SO |
1458 | }); |
1459 | ||
6bb38cd6 RG |
1460 | g_lua.writeFunction("setAPIWritable", [](bool writable, boost::optional<std::string> apiConfigDir) { |
1461 | setLuaSideEffect(); | |
1462 | g_apiReadWrite = writable; | |
1463 | if (apiConfigDir) { | |
1464 | if (!(*apiConfigDir).empty()) { | |
1465 | g_apiConfigDirectory = *apiConfigDir; | |
1466 | } | |
1467 | else { | |
1468 | errlog("The API configuration directory value cannot be empty!"); | |
1469 | g_outputBuffer="The API configuration directory value cannot be empty!"; | |
1470 | } | |
741ebe08 | 1471 | } |
5b8255ba | 1472 | }); |
26a6373d | 1473 | |
6bb38cd6 RG |
1474 | g_lua.writeFunction("setServFailWhenNoServer", [](bool servfail) { |
1475 | setLuaSideEffect(); | |
1476 | g_servFailOnNoPolicy = servfail; | |
1477 | }); | |
26a6373d | 1478 | |
32b86928 RG |
1479 | g_lua.writeFunction("setRoundRobinFailOnNoServer", [](bool fail) { |
1480 | setLuaSideEffect(); | |
1481 | g_roundrobinFailOnNoServer = fail; | |
1482 | }); | |
1483 | ||
01f6920b | 1484 | g_lua.writeFunction("setRingBuffersSize", [](size_t capacity, boost::optional<size_t> numberOfShards) { |
6bb38cd6 RG |
1485 | setLuaSideEffect(); |
1486 | if (g_configurationDone) { | |
1487 | errlog("setRingBuffersSize() cannot be used at runtime!"); | |
1488 | g_outputBuffer="setRingBuffersSize() cannot be used at runtime!\n"; | |
1489 | return; | |
5b8255ba | 1490 | } |
01f6920b | 1491 | g_rings.setCapacity(capacity, numberOfShards ? *numberOfShards : 1); |
5b8255ba | 1492 | }); |
26a6373d | 1493 | |
6d31c8b6 RG |
1494 | g_lua.writeFunction("setRingBuffersLockRetries", [](size_t retries) { |
1495 | setLuaSideEffect(); | |
1496 | g_rings.setNumberOfLockRetries(retries); | |
5b8255ba | 1497 | }); |
26a6373d | 1498 | |
6bb38cd6 RG |
1499 | g_lua.writeFunction("setWHashedPertubation", [](uint32_t pertub) { |
1500 | setLuaSideEffect(); | |
1501 | g_hashperturb = pertub; | |
1502 | }); | |
26a6373d | 1503 | |
6bb38cd6 RG |
1504 | g_lua.writeFunction("setTCPUseSinglePipe", [](bool flag) { |
1505 | if (g_configurationDone) { | |
1506 | g_outputBuffer="setTCPUseSinglePipe() cannot be used at runtime!\n"; | |
1507 | return; | |
5b8255ba | 1508 | } |
6bb38cd6 RG |
1509 | setLuaSideEffect(); |
1510 | g_useTCPSinglePipe = flag; | |
5b8255ba | 1511 | }); |
26a6373d | 1512 | |
cd4bb56b PD |
1513 | g_lua.writeFunction("snmpAgent", [client](bool enableTraps, boost::optional<std::string> masterSocket) { |
1514 | if(client) | |
1515 | return; | |
9f4eb5cc | 1516 | #ifdef HAVE_NET_SNMP |
6bb38cd6 RG |
1517 | if (g_configurationDone) { |
1518 | errlog("snmpAgent() cannot be used at runtime!"); | |
1519 | g_outputBuffer="snmpAgent() cannot be used at runtime!\n"; | |
1520 | return; | |
1521 | } | |
1522 | ||
1523 | if (g_snmpEnabled) { | |
1524 | errlog("snmpAgent() cannot be used twice!"); | |
1525 | g_outputBuffer="snmpAgent() cannot be used twice!\n"; | |
1526 | return; | |
9f4eb5cc | 1527 | } |
6bb38cd6 RG |
1528 | |
1529 | g_snmpEnabled = true; | |
1530 | g_snmpTrapsEnabled = enableTraps; | |
1531 | g_snmpAgent = new DNSDistSNMPAgent("dnsdist", masterSocket ? *masterSocket : std::string()); | |
1532 | #else | |
1533 | errlog("NET SNMP support is required to use snmpAgent()"); | |
1534 | g_outputBuffer="NET SNMP support is required to use snmpAgent()\n"; | |
9f4eb5cc RG |
1535 | #endif /* HAVE_NET_SNMP */ |
1536 | }); | |
497a6e3a | 1537 | |
6bb38cd6 | 1538 | g_lua.writeFunction("sendCustomTrap", [](const std::string& str) { |
9f4eb5cc RG |
1539 | #ifdef HAVE_NET_SNMP |
1540 | if (g_snmpAgent && g_snmpTrapsEnabled) { | |
6bb38cd6 | 1541 | g_snmpAgent->sendCustomTrap(str); |
9f4eb5cc RG |
1542 | } |
1543 | #endif /* HAVE_NET_SNMP */ | |
1544 | }); | |
6beb5731 | 1545 | |
6bb38cd6 RG |
1546 | g_lua.writeFunction("setPoolServerPolicy", [](ServerPolicy policy, string pool) { |
1547 | setLuaSideEffect(); | |
1548 | auto localPools = g_pools.getCopy(); | |
1549 | setPoolPolicy(localPools, pool, std::make_shared<ServerPolicy>(policy)); | |
1550 | g_pools.setState(localPools); | |
6c1ca990 | 1551 | }); |
e41f8165 | 1552 | |
6bb38cd6 RG |
1553 | g_lua.writeFunction("setPoolServerPolicyLua", [](string name, policyfunc_t policy, string pool) { |
1554 | setLuaSideEffect(); | |
1555 | auto localPools = g_pools.getCopy(); | |
a1b1a29d | 1556 | setPoolPolicy(localPools, pool, std::make_shared<ServerPolicy>(ServerPolicy{name, policy, true})); |
6bb38cd6 | 1557 | g_pools.setState(localPools); |
9396d955 RG |
1558 | }); |
1559 | ||
6bb38cd6 RG |
1560 | g_lua.writeFunction("showPoolServerPolicy", [](string pool) { |
1561 | setLuaSideEffect(); | |
1562 | auto localPools = g_pools.getCopy(); | |
1563 | auto poolObj = getPool(localPools, pool); | |
1564 | if (poolObj->policy == nullptr) { | |
1565 | g_outputBuffer=g_policy.getLocal()->name+"\n"; | |
9396d955 | 1566 | } else { |
6bb38cd6 | 1567 | g_outputBuffer=poolObj->policy->name+"\n"; |
9396d955 RG |
1568 | } |
1569 | }); | |
1570 | ||
6bb38cd6 RG |
1571 | g_lua.writeFunction("setTCPDownstreamCleanupInterval", [](uint16_t interval) { |
1572 | setLuaSideEffect(); | |
1573 | g_downstreamTCPCleanupInterval = interval; | |
9396d955 RG |
1574 | }); |
1575 | ||
6bb38cd6 RG |
1576 | g_lua.writeFunction("setConsoleConnectionsLogging", [](bool enabled) { |
1577 | g_logConsoleConnections = enabled; | |
e65ae260 RG |
1578 | }); |
1579 | ||
03c05963 CHB |
1580 | g_lua.writeFunction("setConsoleOutputMaxMsgSize", [](uint32_t size) { |
1581 | g_consoleOutputMsgMaxSize = size; | |
1582 | }); | |
1583 | ||
6bb38cd6 RG |
1584 | g_lua.writeFunction("setUDPMultipleMessagesVectorSize", [](size_t vSize) { |
1585 | if (g_configurationDone) { | |
1586 | errlog("setUDPMultipleMessagesVectorSize() cannot be used at runtime!"); | |
1587 | g_outputBuffer="setUDPMultipleMessagesVectorSize() cannot be used at runtime!\n"; | |
1588 | return; | |
2a817e5a | 1589 | } |
6bb38cd6 RG |
1590 | #if defined(HAVE_RECVMMSG) && defined(HAVE_SENDMMSG) && defined(MSG_WAITFORONE) |
1591 | setLuaSideEffect(); | |
1592 | g_udpVectorSize = vSize; | |
1593 | #else | |
1594 | errlog("recvmmsg() support is not available!"); | |
1595 | g_outputBuffer="recvmmsg support is not available!\n"; | |
1596 | #endif | |
1597 | }); | |
a227f47d | 1598 | |
e7c732b8 RG |
1599 | g_lua.writeFunction("setAddEDNSToSelfGeneratedResponses", [](bool add) { |
1600 | g_addEDNSToSelfGeneratedResponses = add; | |
1601 | }); | |
1602 | ||
1603 | g_lua.writeFunction("setPayloadSizeOnSelfGeneratedAnswers", [](uint16_t payloadSize) { | |
1604 | if (payloadSize < 512) { | |
1605 | warnlog("setPayloadSizeOnSelfGeneratedAnswers() is set too low, using 512 instead!"); | |
1606 | g_outputBuffer="setPayloadSizeOnSelfGeneratedAnswers() is set too low, using 512 instead!"; | |
1607 | payloadSize = 512; | |
1608 | } | |
1609 | if (payloadSize > s_udpIncomingBufferSize) { | |
1610 | warnlog("setPayloadSizeOnSelfGeneratedAnswers() is set too high, capping to %d instead!", s_udpIncomingBufferSize); | |
1611 | g_outputBuffer="setPayloadSizeOnSelfGeneratedAnswers() is set too high, capping to " + std::to_string(s_udpIncomingBufferSize) + " instead"; | |
1612 | payloadSize = s_udpIncomingBufferSize; | |
1613 | } | |
1614 | g_PayloadSizeSelfGenAnswers = payloadSize; | |
1615 | }); | |
1616 | ||
5d4e1ef8 RG |
1617 | g_lua.writeFunction("setSecurityPollSuffix", [](const std::string& suffix) { |
1618 | if (g_configurationDone) { | |
1619 | g_outputBuffer="setSecurityPollSuffix() cannot be used at runtime!\n"; | |
1620 | return; | |
1621 | } | |
1622 | ||
1623 | g_secPollSuffix = suffix; | |
1624 | }); | |
1625 | ||
1626 | g_lua.writeFunction("setSecurityPollInterval", [](time_t newInterval) { | |
1627 | if (newInterval <= 0) { | |
1628 | warnlog("setSecurityPollInterval() should be > 0, skipping"); | |
1629 | g_outputBuffer="setSecurityPollInterval() should be > 0, skipping"; | |
1630 | } | |
1631 | ||
1632 | g_secPollInterval = newInterval; | |
1633 | }); | |
1634 | ||
0ca6a67f RG |
1635 | g_lua.writeFunction("setSyslogFacility", [](int facility) { |
1636 | setLuaSideEffect(); | |
1637 | if (g_configurationDone) { | |
1638 | g_outputBuffer="setSyslogFacility cannot be used at runtime!\n"; | |
1639 | return; | |
1640 | } | |
1641 | setSyslogFacility(facility); | |
1642 | }); | |
1643 | ||
0718e562 | 1644 | g_lua.writeFunction("addDOHLocal", [client](const std::string& addr, boost::variant<std::string, std::vector<std::pair<int,std::string>>> certFiles, boost::variant<std::string, std::vector<std::pair<int,std::string>>> keyFiles, boost::optional<boost::variant<std::string, vector<pair<int, std::string> > > > urls, boost::optional<localbind_t> vars) { |
56d44226 | 1645 | #ifdef HAVE_DNS_OVER_HTTPS |
fbf14b03 RG |
1646 | if (client) { |
1647 | return; | |
1648 | } | |
fbf14b03 RG |
1649 | setLuaSideEffect(); |
1650 | if (g_configurationDone) { | |
1651 | g_outputBuffer="addDOHLocal cannot be used at runtime!\n"; | |
1652 | return; | |
1653 | } | |
1654 | auto frontend = std::make_shared<DOHFrontend>(); | |
bf8cd40d RG |
1655 | |
1656 | if (!loadTLSCertificateAndKeys("addDOHLocal", frontend->d_certKeyPairs, certFiles, keyFiles)) { | |
1657 | return; | |
1658 | } | |
1659 | ||
fbf14b03 | 1660 | frontend->d_local = ComboAddress(addr, 443); |
0718e562 RG |
1661 | if (urls) { |
1662 | if (urls->type() == typeid(std::string)) { | |
1663 | frontend->d_urls.push_back(boost::get<std::string>(*urls)); | |
1664 | } | |
1665 | else if (urls->type() == typeid(std::vector<std::pair<int,std::string>>)) { | |
1666 | auto urlsVect = boost::get<std::vector<std::pair<int,std::string>>>(*urls); | |
1667 | for(const auto& p : urlsVect) { | |
1668 | frontend->d_urls.push_back(p.second); | |
1669 | } | |
fbf14b03 RG |
1670 | } |
1671 | } | |
1672 | else { | |
1673 | frontend->d_urls = {"/"}; | |
1674 | } | |
1675 | ||
2b0cb8f8 RG |
1676 | bool reusePort = false; |
1677 | int tcpFastOpenQueueSize = 0; | |
1678 | std::string interface; | |
1679 | std::set<int> cpus; | |
2b0cb8f8 | 1680 | |
fbf14b03 | 1681 | if(vars) { |
0230e350 | 1682 | parseLocalBindVars(vars, reusePort, tcpFastOpenQueueSize, interface, cpus); |
2b0cb8f8 | 1683 | |
fbf14b03 RG |
1684 | if (vars->count("idleTimeout")) { |
1685 | frontend->d_idleTimeout = boost::get<int>((*vars)["idleTimeout"]); | |
1686 | } | |
6e3a9fe4 RG |
1687 | if (vars->count("ciphers")) { |
1688 | frontend->d_ciphers = boost::get<const string>((*vars)["ciphers"]); | |
1689 | } | |
1690 | if (vars->count("ciphersTLS13")) { | |
1691 | frontend->d_ciphers13 = boost::get<const string>((*vars)["ciphersTLS13"]); | |
1692 | } | |
3d0371b3 RG |
1693 | if (vars->count("serverTokens")) { |
1694 | frontend->d_serverTokens = boost::get<const string>((*vars)["serverTokens"]); | |
1695 | } | |
fbf14b03 RG |
1696 | } |
1697 | g_dohlocals.push_back(frontend); | |
2b0cb8f8 | 1698 | auto cs = std::unique_ptr<ClientState>(new ClientState(frontend->d_local, true, reusePort, tcpFastOpenQueueSize, interface, cpus)); |
fbf14b03 RG |
1699 | cs->dohFrontend = frontend; |
1700 | g_frontends.push_back(std::move(cs)); | |
1701 | #else | |
56d44226 | 1702 | throw std::runtime_error("addDOHLocal() called but DNS over HTTPS support is not present!"); |
fbf14b03 RG |
1703 | #endif |
1704 | }); | |
1705 | ||
1b51c0f3 RG |
1706 | g_lua.writeFunction("showDOHFrontends", []() { |
1707 | #ifdef HAVE_DNS_OVER_HTTPS | |
1708 | setLuaNoSideEffect(); | |
1709 | try { | |
1710 | ostringstream ret; | |
1711 | boost::format fmt("%-3d %-20.20s %-15d %-15d %-15d %-15d %-15d %-15d %-15d %-15d %-15d %-15d %-15d %-15d %-15d"); | |
1712 | ret << (fmt % "#" % "Address" % "HTTP" % "HTTP/1" % "HTTP/2" % "TLS 1.0" % "TLS 1.1" % "TLS 1.2" % "TLS 1.3" % "TLS other" % "GET" % "POST" % "Bad" % "Errors" % "Valid") << endl; | |
1713 | size_t counter = 0; | |
1714 | for (const auto& ctx : g_dohlocals) { | |
1715 | ret << (fmt % counter % ctx->d_local.toStringWithPort() % ctx->d_httpconnects % ctx->d_http1queries % ctx->d_http2queries % ctx->d_tls10queries % ctx->d_tls11queries % ctx->d_tls12queries % ctx->d_tls13queries % ctx->d_tlsUnknownqueries % ctx->d_getqueries % ctx->d_postqueries % ctx->d_badrequests % ctx->d_errorresponses % ctx->d_validresponses) << endl; | |
1716 | counter++; | |
1717 | } | |
1718 | g_outputBuffer = ret.str(); | |
1719 | } | |
1720 | catch(const std::exception& e) { | |
1721 | g_outputBuffer = e.what(); | |
1722 | throw; | |
1723 | } | |
1724 | #else | |
1725 | g_outputBuffer="DNS over HTTPS support is not present!\n"; | |
1726 | #endif | |
1727 | }); | |
1728 | ||
1729 | g_lua.writeFunction("getDOHFrontend", [](size_t index) { | |
1730 | std::shared_ptr<DOHFrontend> result = nullptr; | |
1731 | #ifdef HAVE_DNS_OVER_HTTPS | |
1732 | setLuaNoSideEffect(); | |
1733 | try { | |
1734 | if (index < g_dohlocals.size()) { | |
1735 | result = g_dohlocals.at(index); | |
1736 | } | |
1737 | else { | |
0718e562 RG |
1738 | errlog("Error: trying to get DOH frontend with index %zu but we only have %zu frontend(s)\n", index, g_dohlocals.size()); |
1739 | g_outputBuffer="Error: trying to get DOH frontend with index " + std::to_string(index) + " but we only have " + std::to_string(g_dohlocals.size()) + " frontend(s)\n"; | |
1b51c0f3 RG |
1740 | } |
1741 | } | |
1742 | catch(const std::exception& e) { | |
0718e562 | 1743 | g_outputBuffer="Error while trying to get DOH frontend with index " + std::to_string(index) + ": "+string(e.what())+"\n"; |
56d44226 | 1744 | errlog("Error while trying to get DOH frontend with index %zu: %s\n", index, string(e.what())); |
1b51c0f3 RG |
1745 | } |
1746 | #else | |
1747 | g_outputBuffer="DNS over HTTPS support is not present!\n"; | |
1748 | #endif | |
1749 | return result; | |
1750 | }); | |
1751 | ||
6c7cec08 | 1752 | g_lua.registerFunction<void(std::shared_ptr<DOHFrontend>::*)()>("reloadCertificates", [](std::shared_ptr<DOHFrontend> frontend) { |
1b51c0f3 | 1753 | if (frontend != nullptr) { |
6c7cec08 | 1754 | frontend->reloadCertificates(); |
1b51c0f3 RG |
1755 | } |
1756 | }); | |
1757 | ||
fa974ada | 1758 | g_lua.writeFunction("addTLSLocal", [client](const std::string& addr, boost::variant<std::string, std::vector<std::pair<int,std::string>>> certFiles, boost::variant<std::string, std::vector<std::pair<int,std::string>>> keyFiles, boost::optional<localbind_t> vars) { |
56d44226 | 1759 | #ifdef HAVE_DNS_OVER_TLS |
a227f47d RG |
1760 | if (client) |
1761 | return; | |
a227f47d RG |
1762 | setLuaSideEffect(); |
1763 | if (g_configurationDone) { | |
1764 | g_outputBuffer="addTLSLocal cannot be used at runtime!\n"; | |
1765 | return; | |
1766 | } | |
1767 | shared_ptr<TLSFrontend> frontend = std::make_shared<TLSFrontend>(); | |
fa974ada | 1768 | |
bf8cd40d | 1769 | if (!loadTLSCertificateAndKeys("addTLSLocal", frontend->d_certKeyPairs, certFiles, keyFiles)) { |
fa974ada RG |
1770 | return; |
1771 | } | |
a227f47d | 1772 | |
6e9fd124 RG |
1773 | bool reusePort = false; |
1774 | int tcpFastOpenQueueSize = 0; | |
1775 | std::string interface; | |
1776 | std::set<int> cpus; | |
6e9fd124 | 1777 | |
a227f47d | 1778 | if (vars) { |
0230e350 | 1779 | parseLocalBindVars(vars, reusePort, tcpFastOpenQueueSize, interface, cpus); |
a227f47d RG |
1780 | |
1781 | if (vars->count("provider")) { | |
1782 | frontend->d_provider = boost::get<const string>((*vars)["provider"]); | |
1783 | } | |
1784 | ||
1785 | if (vars->count("ciphers")) { | |
1786 | frontend->d_ciphers = boost::get<const string>((*vars)["ciphers"]); | |
1787 | } | |
1788 | ||
9e67ac67 RG |
1789 | if (vars->count("ciphersTLS13")) { |
1790 | frontend->d_ciphers13 = boost::get<const string>((*vars)["ciphersTLS13"]); | |
1791 | } | |
1792 | ||
a227f47d RG |
1793 | if (vars->count("ticketKeyFile")) { |
1794 | frontend->d_ticketKeyFile = boost::get<const string>((*vars)["ticketKeyFile"]); | |
1795 | } | |
1796 | ||
1797 | if (vars->count("ticketsKeysRotationDelay")) { | |
c80110cb | 1798 | frontend->d_ticketsKeyRotationDelay = boost::get<int>((*vars)["ticketsKeysRotationDelay"]); |
a227f47d RG |
1799 | } |
1800 | ||
1801 | if (vars->count("numberOfTicketsKeys")) { | |
c80110cb | 1802 | frontend->d_numberOfTicketsKeys = boost::get<int>((*vars)["numberOfTicketsKeys"]); |
a227f47d | 1803 | } |
c8d7b468 | 1804 | |
ba20dc97 RG |
1805 | if (vars->count("sessionTickets")) { |
1806 | frontend->d_enableTickets = boost::get<bool>((*vars)["sessionTickets"]); | |
c8d7b468 | 1807 | } |
d395c941 RG |
1808 | |
1809 | if (vars->count("numberOfStoredSessions")) { | |
aa4f798e RG |
1810 | auto value = boost::get<int>((*vars)["numberOfStoredSessions"]); |
1811 | if (value < 0) { | |
1812 | errlog("Invalid value '%d' for addTLSLocal() parameter 'numberOfStoredSessions', should be >= 0, dismissing", value); | |
1813 | g_outputBuffer="Invalid value '" + std::to_string(value) + "' for addTLSLocal() parameter 'numberOfStoredSessions', should be >= 0, dimissing"; | |
1814 | return; | |
1815 | } | |
1816 | frontend->d_maxStoredSessions = value; | |
d395c941 | 1817 | } |
a227f47d RG |
1818 | } |
1819 | ||
1820 | try { | |
1821 | frontend->d_addr = ComboAddress(addr, 853); | |
1822 | vinfolog("Loading TLS provider %s", frontend->d_provider); | |
6e9fd124 RG |
1823 | // only works pre-startup, so no sync necessary |
1824 | auto cs = std::unique_ptr<ClientState>(new ClientState(frontend->d_addr, true, reusePort, tcpFastOpenQueueSize, interface, cpus)); | |
1825 | cs->tlsFrontend = frontend; | |
1826 | g_tlslocals.push_back(cs->tlsFrontend); | |
1827 | g_frontends.push_back(std::move(cs)); | |
a227f47d RG |
1828 | } |
1829 | catch(const std::exception& e) { | |
1830 | g_outputBuffer="Error: "+string(e.what())+"\n"; | |
1831 | } | |
1832 | #else | |
56d44226 | 1833 | throw std::runtime_error("addTLSLocal() called but DNS over TLS support is not present!"); |
a227f47d RG |
1834 | #endif |
1835 | }); | |
1836 | ||
7f2f825d | 1837 | g_lua.writeFunction("showTLSContexts", []() { |
a227f47d RG |
1838 | #ifdef HAVE_DNS_OVER_TLS |
1839 | setLuaNoSideEffect(); | |
1840 | try { | |
1841 | ostringstream ret; | |
1842 | boost::format fmt("%1$-3d %2$-20.20s %|25t|%3$-14d %|40t|%4$-14d %|54t|%5$-21.21s"); | |
1843 | // 1 2 3 4 5 | |
1844 | ret << (fmt % "#" % "Address" % "# ticket keys" % "Rotation delay" % "Next rotation" ) << endl; | |
1845 | size_t counter = 0; | |
1846 | for (const auto& ctx : g_tlslocals) { | |
1847 | ret << (fmt % counter % ctx->d_addr.toStringWithPort() % ctx->getTicketsKeysCount() % ctx->getTicketsKeyRotationDelay() % ctx->getNextTicketsKeyRotation()) << endl; | |
1848 | counter++; | |
1849 | } | |
1850 | g_outputBuffer = ret.str(); | |
1851 | } | |
1852 | catch(const std::exception& e) { | |
1853 | g_outputBuffer = e.what(); | |
1854 | throw; | |
1855 | } | |
1856 | #else | |
1857 | g_outputBuffer="DNS over TLS support is not present!\n"; | |
1858 | #endif | |
1859 | }); | |
1860 | ||
7f2f825d | 1861 | g_lua.writeFunction("getTLSContext", [](size_t index) { |
a227f47d RG |
1862 | std::shared_ptr<TLSCtx> result = nullptr; |
1863 | #ifdef HAVE_DNS_OVER_TLS | |
1864 | setLuaNoSideEffect(); | |
1865 | try { | |
1866 | if (index < g_tlslocals.size()) { | |
1867 | result = g_tlslocals.at(index)->getContext(); | |
1868 | } | |
1869 | else { | |
0718e562 RG |
1870 | errlog("Error: trying to get TLS context with index %zu but we only have %zu context(s)\n", index, g_tlslocals.size()); |
1871 | g_outputBuffer="Error: trying to get TLS context with index " + std::to_string(index) + " but we only have " + std::to_string(g_tlslocals.size()) + " context(s)\n"; | |
a227f47d RG |
1872 | } |
1873 | } | |
1874 | catch(const std::exception& e) { | |
0718e562 RG |
1875 | g_outputBuffer="Error while trying to get TLS context with index " + std::to_string(index) + ": "+string(e.what())+"\n"; |
1876 | errlog("Error while trying to get TLS context with index %zu: %s\n", index, string(e.what())); | |
a227f47d RG |
1877 | } |
1878 | #else | |
1879 | g_outputBuffer="DNS over TLS support is not present!\n"; | |
1880 | #endif | |
1881 | return result; | |
1882 | }); | |
1883 | ||
8ef43a02 RG |
1884 | g_lua.writeFunction("getTLSFrontend", [](size_t index) { |
1885 | std::shared_ptr<TLSFrontend> result = nullptr; | |
1886 | #ifdef HAVE_DNS_OVER_TLS | |
1887 | setLuaNoSideEffect(); | |
1888 | try { | |
1889 | if (index < g_tlslocals.size()) { | |
1890 | result = g_tlslocals.at(index); | |
1891 | } | |
1892 | else { | |
0718e562 RG |
1893 | errlog("Error: trying to get TLS frontend with index %zu but we only have %zu frontends\n", index, g_tlslocals.size()); |
1894 | g_outputBuffer="Error: trying to get TLS frontend with index " + std::to_string(index) + " but we only have " + std::to_string(g_tlslocals.size()) + " frontend(s)\n"; | |
8ef43a02 RG |
1895 | } |
1896 | } | |
1897 | catch(const std::exception& e) { | |
0718e562 RG |
1898 | g_outputBuffer="Error while trying to get TLS frontend with index " + std::to_string(index) + ": "+string(e.what())+"\n"; |
1899 | errlog("Error while trying to get TLS frontend with index %zu: %s\n", index, string(e.what())); | |
8ef43a02 RG |
1900 | } |
1901 | #else | |
1902 | g_outputBuffer="DNS over TLS support is not present!\n"; | |
1903 | #endif | |
1904 | return result; | |
1905 | }); | |
1906 | ||
a227f47d RG |
1907 | g_lua.registerFunction<void(std::shared_ptr<TLSCtx>::*)()>("rotateTicketsKey", [](std::shared_ptr<TLSCtx> ctx) { |
1908 | if (ctx != nullptr) { | |
1909 | ctx->rotateTicketsKey(time(nullptr)); | |
1910 | } | |
1911 | }); | |
1912 | ||
1913 | g_lua.registerFunction<void(std::shared_ptr<TLSCtx>::*)(const std::string&)>("loadTicketsKeys", [](std::shared_ptr<TLSCtx> ctx, const std::string& file) { | |
1914 | if (ctx != nullptr) { | |
1915 | ctx->loadTicketsKeys(file); | |
1916 | } | |
1917 | }); | |
8ef43a02 RG |
1918 | |
1919 | g_lua.registerFunction<void(std::shared_ptr<TLSFrontend>::*)(boost::variant<std::string, std::vector<std::pair<int,std::string>>> certFiles, boost::variant<std::string, std::vector<std::pair<int,std::string>>> keyFiles)>("loadNewCertificatesAndKeys", [](std::shared_ptr<TLSFrontend>& frontend, boost::variant<std::string, std::vector<std::pair<int,std::string>>> certFiles, boost::variant<std::string, std::vector<std::pair<int,std::string>>> keyFiles) { | |
9ce6a273 | 1920 | #ifdef HAVE_DNS_OVER_TLS |
bf8cd40d | 1921 | if (loadTLSCertificateAndKeys("loadNewCertificatesAndKeys", frontend->d_certKeyPairs, certFiles, keyFiles)) { |
8ef43a02 RG |
1922 | frontend->setupTLS(); |
1923 | } | |
9ce6a273 | 1924 | #endif |
8ef43a02 | 1925 | }); |
0dffe9e3 | 1926 | |
bcc62bfb RG |
1927 | g_lua.writeFunction("reloadAllCertificates", []() { |
1928 | for (auto& frontend : g_frontends) { | |
1929 | if (!frontend) { | |
1930 | continue; | |
1931 | } | |
1932 | try { | |
1933 | #ifdef HAVE_DNSCRYPT | |
1934 | if (frontend->dnscryptCtx) { | |
1935 | frontend->dnscryptCtx->reloadCertificate(); | |
1936 | } | |
1937 | #endif /* HAVE_DNSCRYPT */ | |
1938 | #ifdef HAVE_DNS_OVER_TLS | |
1939 | if (frontend->tlsFrontend) { | |
1940 | frontend->tlsFrontend->setupTLS(); | |
1941 | } | |
1942 | #endif /* HAVE_DNS_OVER_TLS */ | |
6e3a9fe4 RG |
1943 | #ifdef HAVE_DNS_OVER_HTTPS |
1944 | if (frontend->dohFrontend) { | |
6c7cec08 | 1945 | frontend->dohFrontend->reloadCertificates(); |
6e3a9fe4 RG |
1946 | } |
1947 | #endif /* HAVE_DNS_OVER_HTTPS */ | |
bcc62bfb RG |
1948 | } |
1949 | catch(const std::exception& e) { | |
1950 | errlog("Error reloading certificates for frontend %s: %s", frontend->local.toStringWithPort(), e.what()); | |
1951 | } | |
1952 | } | |
1953 | }); | |
1954 | ||
1955 | g_lua.writeFunction("setAllowEmptyResponse", [](bool allow) { g_allowEmptyResponse=allow; }); | |
6bb38cd6 | 1956 | } |
2a817e5a | 1957 | |
6bb38cd6 RG |
1958 | vector<std::function<void(void)>> setupLua(bool client, const std::string& config) |
1959 | { | |
1960 | g_launchWork= new vector<std::function<void(void)>>(); | |
2a817e5a | 1961 | |
6bb38cd6 RG |
1962 | setupLuaActions(); |
1963 | setupLuaConfig(client); | |
1964 | setupLuaBindings(client); | |
1965 | setupLuaBindingsDNSQuestion(); | |
1966 | setupLuaInspection(); | |
1967 | setupLuaRules(); | |
1968 | setupLuaVars(); | |
80a216c9 | 1969 | |
839f3021 | 1970 | std::ifstream ifs(config); |
6bb38cd6 | 1971 | if(!ifs) |
839f3021 | 1972 | warnlog("Unable to read configuration from '%s'", config); |
2e72cc0e | 1973 | else |
cdc04ede | 1974 | vinfolog("Read configuration from '%s'", config); |
df111b53 | 1975 | |
1976 | g_lua.executeCode(ifs); | |
d8c19b98 | 1977 | |
6bb38cd6 | 1978 | auto ret = *g_launchWork; |
2e72cc0e | 1979 | delete g_launchWork; |
6bb38cd6 | 1980 | g_launchWork = nullptr; |
2e72cc0e | 1981 | return ret; |
df111b53 | 1982 | } |