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Commit | Line | Data |
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12c86877 | 1 | /* |
12471842 PL |
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 | */ | |
870a0fe4 AT |
22 | #ifdef HAVE_CONFIG_H |
23 | #include "config.h" | |
24 | #endif | |
bf269e28 RG |
25 | #include "auth-caches.hh" |
26 | #include "auth-querycache.hh" | |
27 | #include "auth-packetcache.hh" | |
bd11bd1d | 28 | #include "utility.hh" |
12c86877 BH |
29 | #include "dynhandler.hh" |
30 | #include "statbag.hh" | |
31 | #include "logger.hh" | |
32 | #include "dns.hh" | |
33 | #include "arguments.hh" | |
34 | #include <signal.h> | |
bd11bd1d | 35 | #include "misc.hh" |
12c86877 | 36 | #include "communicator.hh" |
627d2ca2 | 37 | #include "dnsseckeeper.hh" |
ba7244a5 | 38 | #include "nameserver.hh" |
09425ce1 | 39 | #include "responsestats.hh" |
767da1a0 | 40 | #include "ueberbackend.hh" |
3e8216c8 | 41 | #include "common_startup.hh" |
09425ce1 F |
42 | |
43 | extern ResponseStats g_rs; | |
12c86877 BH |
44 | |
45 | static bool s_pleasequit; | |
64bcb6be | 46 | static string d_status; |
12c86877 BH |
47 | |
48 | bool DLQuitPlease() | |
49 | { | |
50 | return s_pleasequit; | |
51 | } | |
52 | ||
53 | string DLQuitHandler(const vector<string>&parts, Utility::pid_t ppid) | |
54 | { | |
55 | string ret="No return value"; | |
56 | if(parts[0]=="QUIT") { | |
57 | s_pleasequit=true; | |
58 | ret="Scheduling exit"; | |
e6a9dde5 | 59 | g_log<<Logger::Error<<"Scheduling exit on remote request"<<endl; |
12c86877 BH |
60 | } |
61 | return ret; | |
12c86877 BH |
62 | } |
63 | ||
64 | static void dokill(int) | |
65 | { | |
e7f0140b | 66 | exit(0); |
12c86877 BH |
67 | } |
68 | ||
64bcb6be RA |
69 | string DLCurrentConfigHandler(const vector<string>&parts, Utility::pid_t ppid) |
70 | { | |
71 | return ::arg().configstring(true); | |
72 | } | |
73 | ||
12c86877 BH |
74 | string DLRQuitHandler(const vector<string>&parts, Utility::pid_t ppid) |
75 | { | |
12c86877 | 76 | signal(SIGALRM, dokill); |
12c86877 | 77 | alarm(1); |
12c86877 BH |
78 | return "Exiting"; |
79 | } | |
80 | ||
81 | string DLPingHandler(const vector<string>&parts, Utility::pid_t ppid) | |
82 | { | |
83 | return "PONG"; | |
84 | } | |
85 | ||
28c3cc11 | 86 | string DLShowHandler(const vector<string>&parts, Utility::pid_t ppid) { |
28c3cc11 OM |
87 | try { |
88 | extern StatBag S; | |
89 | string ret("Wrong number of parameters"); | |
90 | if (parts.size() == 2) { | |
91 | if (parts[1] == "*") | |
f3245c8c | 92 | ret = S.directory(); |
28c3cc11 OM |
93 | else |
94 | ret = S.getValueStr(parts[1]); | |
95 | } | |
12c86877 | 96 | |
28c3cc11 OM |
97 | return ret; |
98 | } | |
99 | catch (...) { | |
100 | return "Unknown"; | |
101 | } | |
02feff9f | 102 | } |
12c86877 BH |
103 | |
104 | void setStatus(const string &str) | |
105 | { | |
106 | d_status=str; | |
107 | } | |
108 | ||
109 | string DLStatusHandler(const vector<string>&parts, Utility::pid_t ppid) | |
110 | { | |
111 | ostringstream os; | |
112 | os<<ppid<<": "<<d_status; | |
113 | return os.str(); | |
114 | } | |
115 | ||
116 | string DLUptimeHandler(const vector<string>&parts, Utility::pid_t ppid) | |
117 | { | |
118 | ostringstream os; | |
119 | os<<humanDuration(time(0)-s_starttime); | |
120 | return os.str(); | |
121 | } | |
122 | ||
123 | string DLPurgeHandler(const vector<string>&parts, Utility::pid_t ppid) | |
124 | { | |
627d2ca2 | 125 | DNSSECKeeper dk; |
12c86877 | 126 | ostringstream os; |
27fdc3fc | 127 | int ret=0; |
12c86877 | 128 | |
27fdc3fc BH |
129 | if(parts.size()>1) { |
130 | for (vector<string>::const_iterator i=++parts.begin();i<parts.end();++i) { | |
bf269e28 | 131 | ret+=purgeAuthCaches(*i); |
478748c3 | 132 | if(!boost::ends_with(*i, "$")) |
133 | dk.clearCaches(DNSName(*i)); | |
134 | else | |
135 | dk.clearAllCaches(); // at least we do what we promise.. and a bit more! | |
27fdc3fc BH |
136 | } |
137 | } | |
627d2ca2 | 138 | else { |
bf269e28 | 139 | ret = purgeAuthCaches(); |
627d2ca2 PD |
140 | dk.clearAllCaches(); |
141 | } | |
142 | ||
12c86877 BH |
143 | os<<ret; |
144 | return os.str(); | |
145 | } | |
146 | ||
147 | string DLCCHandler(const vector<string>&parts, Utility::pid_t ppid) | |
148 | { | |
bf269e28 RG |
149 | extern AuthPacketCache PC; |
150 | extern AuthQueryCache QC; | |
151 | map<char,uint64_t> counts=QC.getCounts(); | |
152 | uint64_t packetEntries = PC.size(); | |
12c86877 BH |
153 | ostringstream os; |
154 | bool first=true; | |
bf269e28 | 155 | for(map<char,uint64_t>::const_iterator i=counts.begin();i!=counts.end();++i) { |
12c86877 BH |
156 | if(!first) |
157 | os<<", "; | |
158 | first=false; | |
159 | ||
160 | if(i->first=='!') | |
161 | os<<"negative queries: "; | |
162 | else if(i->first=='Q') | |
163 | os<<"queries: "; | |
12c86877 BH |
164 | else |
165 | os<<"unknown: "; | |
166 | ||
167 | os<<i->second; | |
168 | } | |
bf269e28 | 169 | os<<"packets: "<<packetEntries; |
12c86877 BH |
170 | |
171 | return os.str(); | |
172 | } | |
173 | ||
ba7244a5 PD |
174 | string DLQTypesHandler(const vector<string>&parts, Utility::pid_t ppid) |
175 | { | |
09425ce1 | 176 | return g_rs.getQTypeReport(); |
ba7244a5 | 177 | } |
12c86877 | 178 | |
93698ef3 PD |
179 | string DLRSizesHandler(const vector<string>&parts, Utility::pid_t ppid) |
180 | { | |
181 | typedef map<uint16_t, uint64_t> respsizes_t; | |
182 | respsizes_t respsizes = g_rs.getSizeResponseCounts(); | |
183 | ostringstream os; | |
184 | boost::format fmt("%d\t%d\n"); | |
ef7cd021 | 185 | for(const respsizes_t::value_type& val : respsizes) { |
93698ef3 PD |
186 | os << (fmt % val.first % val.second).str(); |
187 | } | |
188 | return os.str(); | |
189 | } | |
190 | ||
191 | string DLRemotesHandler(const vector<string>&parts, Utility::pid_t ppid) | |
192 | { | |
193 | extern StatBag S; | |
194 | typedef vector<pair<string, unsigned int> > totals_t; | |
195 | totals_t totals = S.getRing("remotes"); | |
196 | string ret; | |
197 | boost::format fmt("%s\t%d\n"); | |
ef7cd021 | 198 | for(totals_t::value_type& val : totals) { |
93698ef3 PD |
199 | ret += (fmt % val.first % val.second).str(); |
200 | } | |
201 | return ret; | |
202 | } | |
203 | ||
12c86877 BH |
204 | string DLSettingsHandler(const vector<string>&parts, Utility::pid_t ppid) |
205 | { | |
206 | static const char *whitelist[]={"query-logging",0}; | |
207 | const char **p; | |
208 | ||
209 | if(parts.size()!=3) { | |
210 | return "Syntax: set variable value"; | |
211 | } | |
212 | ||
213 | for(p=whitelist;*p;p++) | |
214 | if(*p==parts[1]) | |
215 | break; | |
3120733f | 216 | if(*p) { |
379ab445 | 217 | ::arg().set(parts[1])=parts[2]; |
12c86877 BH |
218 | return "done"; |
219 | } | |
220 | else | |
3120733f | 221 | return "This setting cannot be changed at runtime, or no such setting"; |
12c86877 BH |
222 | |
223 | } | |
224 | ||
12c86877 BH |
225 | string DLVersionHandler(const vector<string>&parts, Utility::pid_t ppid) |
226 | { | |
12c86877 BH |
227 | return VERSION; |
228 | } | |
229 | ||
ef1d2f44 BH |
230 | string DLNotifyRetrieveHandler(const vector<string>&parts, Utility::pid_t ppid) |
231 | { | |
232 | extern CommunicatorClass Communicator; | |
233 | ostringstream os; | |
234 | if(parts.size()!=2) | |
235 | return "syntax: retrieve domain"; | |
236 | ||
63faa7c9 CH |
237 | DNSName domain; |
238 | try { | |
239 | domain = DNSName(parts[1]); | |
240 | } catch (...) { | |
241 | return "Failed to parse domain as valid DNS name"; | |
242 | } | |
243 | ||
ef1d2f44 | 244 | DomainInfo di; |
295c4a00 | 245 | UeberBackend B; |
63faa7c9 CH |
246 | if(!B.getDomainInfo(domain, di)) |
247 | return "Domain '"+domain.toString()+"' unknown"; | |
ef1d2f44 | 248 | |
889500d7 | 249 | if(di.kind != DomainInfo::Slave || di.masters.empty()) |
63faa7c9 | 250 | return "Domain '"+domain.toString()+"' is not a slave domain (or has no master defined)"; |
f2c11a48 | 251 | |
e5b11b2f | 252 | random_shuffle(di.masters.begin(), di.masters.end()); |
d3ee36f2 | 253 | Communicator.addSuckRequest(domain, di.masters.front()); |
9b0f144f | 254 | return "Added retrieval request for '"+domain.toString()+"' from master "+di.masters.front().toLogString(); |
ef1d2f44 | 255 | } |
12c86877 BH |
256 | |
257 | string DLNotifyHostHandler(const vector<string>&parts, Utility::pid_t ppid) | |
258 | { | |
259 | extern CommunicatorClass Communicator; | |
260 | ostringstream os; | |
261 | if(parts.size()!=3) | |
ea44d9d3 | 262 | return "syntax: notify-host domain ip"; |
0c541891 | 263 | if(!::arg().mustDo("master") && !(::arg().mustDo("slave") && ::arg().mustDo("slave-renotify"))) |
aef133df | 264 | return "PowerDNS not configured as master or slave with re-notifications"; |
5762f14e | 265 | |
c1a295ca CH |
266 | DNSName domain; |
267 | try { | |
268 | domain = DNSName(parts[1]); | |
269 | } catch (...) { | |
270 | return "Failed to parse domain as valid DNS name"; | |
271 | } | |
272 | ||
c069c1f2 BH |
273 | try { |
274 | ComboAddress ca(parts[2]); | |
275 | } catch(...) | |
276 | { | |
5762f14e | 277 | return "Unable to convert '"+parts[2]+"' to an IP address"; |
c069c1f2 BH |
278 | } |
279 | ||
e6a9dde5 | 280 | g_log<<Logger::Warning<<"Notification request to host "<<parts[2]<<" for domain '"<<domain<<"' received from operator"<<endl; |
c1a295ca | 281 | Communicator.notify(domain, parts[2]); |
12c86877 BH |
282 | return "Added to queue"; |
283 | } | |
284 | ||
285 | string DLNotifyHandler(const vector<string>&parts, Utility::pid_t ppid) | |
286 | { | |
287 | extern CommunicatorClass Communicator; | |
f1b4b713 | 288 | UeberBackend B; |
12c86877 BH |
289 | if(parts.size()!=2) |
290 | return "syntax: notify domain"; | |
0c541891 | 291 | if(!::arg().mustDo("master") && !(::arg().mustDo("slave") && ::arg().mustDo("slave-renotify"))) |
aef133df | 292 | return "PowerDNS not configured as master or slave with re-notifications"; |
e6a9dde5 | 293 | g_log<<Logger::Warning<<"Notification request for domain '"<<parts[1]<<"' received from operator"<<endl; |
f1b4b713 KM |
294 | |
295 | if (parts[1] == "*") { | |
296 | vector<DomainInfo> domains; | |
297 | B.getAllDomains(&domains); | |
298 | ||
299 | int total = 0; | |
300 | int notified = 0; | |
be207d3d | 301 | for (const auto& di : domains) { |
472dcfac | 302 | if (di.kind == DomainInfo::Master || di.kind == DomainInfo::Slave) { // MASTER and Slave if slave-renotify is enabled |
f1b4b713 | 303 | total++; |
cb167afd | 304 | if(Communicator.notifyDomain(di.zone)) |
f1b4b713 KM |
305 | notified++; |
306 | } | |
307 | } | |
308 | ||
309 | if (total != notified) | |
310 | return itoa(notified)+" out of "+itoa(total)+" zones added to queue - see log"; | |
ec7849d4 | 311 | return "Added "+itoa(total)+" MASTER/SLAVE zones to queue"; |
f1b4b713 | 312 | } else { |
100cf78b CH |
313 | DNSName domain; |
314 | try { | |
315 | domain = DNSName(parts[1]); | |
316 | } catch (...) { | |
317 | return "Failed to parse domain as valid DNS name"; | |
318 | } | |
290a083d | 319 | if(!Communicator.notifyDomain(DNSName(parts[1]))) |
f1b4b713 KM |
320 | return "Failed to add to the queue - see log"; |
321 | return "Added to queue"; | |
322 | } | |
12c86877 BH |
323 | } |
324 | ||
325 | string DLRediscoverHandler(const vector<string>&parts, Utility::pid_t ppid) | |
326 | { | |
295c4a00 | 327 | UeberBackend B; |
6242d8a4 | 328 | try { |
e6a9dde5 | 329 | g_log<<Logger::Error<<"Rediscovery was requested"<<endl; |
6242d8a4 | 330 | string status="Ok"; |
295c4a00 | 331 | B.rediscover(&status); |
6242d8a4 KM |
332 | return status; |
333 | } | |
334 | catch(PDNSException &ae) { | |
335 | return ae.reason; | |
336 | } | |
337 | ||
12c86877 BH |
338 | } |
339 | ||
340 | string DLReloadHandler(const vector<string>&parts, Utility::pid_t ppid) | |
341 | { | |
295c4a00 CH |
342 | UeberBackend B; |
343 | B.reload(); | |
e6a9dde5 | 344 | g_log<<Logger::Error<<"Reload was requested"<<endl; |
12c86877 BH |
345 | return "Ok"; |
346 | } | |
64bcb6be | 347 | |
f45a622c | 348 | |
ca8e1742 | 349 | string DLListZones(const vector<string>&parts, Utility::pid_t ppid) |
767da1a0 RA |
350 | { |
351 | UeberBackend B; | |
e6a9dde5 | 352 | g_log<<Logger::Notice<<"Received request to list zones."<<endl; |
767da1a0 RA |
353 | vector<DomainInfo> domains; |
354 | B.getAllDomains(&domains); | |
355 | ostringstream ret; | |
356 | int kindFilter = -1; | |
357 | if (parts.size() > 1) { | |
358 | if (toUpper(parts[1]) == "MASTER") | |
359 | kindFilter = 0; | |
360 | else if (toUpper(parts[1]) == "SLAVE") | |
361 | kindFilter = 1; | |
362 | else if (toUpper(parts[1]) == "NATIVE") | |
363 | kindFilter = 2; | |
364 | } | |
365 | ||
366 | int count = 0; | |
367 | ||
cb167afd CHB |
368 | for (const auto& di: domains) { |
369 | if (di.kind == kindFilter || kindFilter == -1) { | |
370 | ret<<di.zone.toString()<<endl; | |
767da1a0 RA |
371 | count++; |
372 | } | |
373 | } | |
374 | if (kindFilter != -1) | |
36811022 | 375 | ret<<parts[1]<<" zonecount:"<<count; |
767da1a0 | 376 | else |
36811022 | 377 | ret<<"All zonecount:"<<count; |
767da1a0 RA |
378 | |
379 | return ret.str(); | |
380 | } | |
3e8216c8 | 381 | |
24e0b305 | 382 | #ifdef HAVE_P11KIT1 |
248d701f | 383 | extern bool PKCS11ModuleSlotLogin(const std::string& module, const string& tokenId, const std::string& pin); |
24e0b305 AT |
384 | #endif |
385 | ||
386 | string DLTokenLogin(const vector<string>&parts, Utility::pid_t ppid) | |
387 | { | |
388 | #ifndef HAVE_P11KIT1 | |
389 | return "PKCS#11 support not compiled in"; | |
390 | #else | |
391 | if (parts.size() != 4) { | |
335da0ba | 392 | return "invalid number of parameters, needs 4, got " + std::to_string(parts.size()); |
24e0b305 AT |
393 | } |
394 | ||
248d701f | 395 | if (PKCS11ModuleSlotLogin(parts[1], parts[2], parts[3])) { |
24e0b305 AT |
396 | return "logged in"; |
397 | } else { | |
398 | return "could not log in, check logs"; | |
399 | } | |
400 | #endif | |
401 | } |