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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 | |
379ab445 | 25 | #include "packetcache.hh" |
bd11bd1d | 26 | #include "utility.hh" |
12c86877 BH |
27 | #include "dynhandler.hh" |
28 | #include "statbag.hh" | |
29 | #include "logger.hh" | |
30 | #include "dns.hh" | |
31 | #include "arguments.hh" | |
32 | #include <signal.h> | |
bd11bd1d | 33 | #include "misc.hh" |
12c86877 | 34 | #include "communicator.hh" |
627d2ca2 | 35 | #include "dnsseckeeper.hh" |
ba7244a5 | 36 | #include "nameserver.hh" |
09425ce1 | 37 | #include "responsestats.hh" |
767da1a0 | 38 | #include "ueberbackend.hh" |
3e8216c8 | 39 | #include "common_startup.hh" |
09425ce1 F |
40 | |
41 | extern ResponseStats g_rs; | |
12c86877 BH |
42 | |
43 | static bool s_pleasequit; | |
64bcb6be | 44 | static string d_status; |
12c86877 BH |
45 | |
46 | bool DLQuitPlease() | |
47 | { | |
48 | return s_pleasequit; | |
49 | } | |
50 | ||
51 | string DLQuitHandler(const vector<string>&parts, Utility::pid_t ppid) | |
52 | { | |
53 | string ret="No return value"; | |
54 | if(parts[0]=="QUIT") { | |
55 | s_pleasequit=true; | |
56 | ret="Scheduling exit"; | |
57 | L<<Logger::Error<<"Scheduling exit on remote request"<<endl; | |
58 | } | |
59 | return ret; | |
12c86877 BH |
60 | } |
61 | ||
62 | static void dokill(int) | |
63 | { | |
e7f0140b | 64 | exit(0); |
12c86877 BH |
65 | } |
66 | ||
64bcb6be RA |
67 | string DLCurrentConfigHandler(const vector<string>&parts, Utility::pid_t ppid) |
68 | { | |
69 | return ::arg().configstring(true); | |
70 | } | |
71 | ||
12c86877 BH |
72 | string DLRQuitHandler(const vector<string>&parts, Utility::pid_t ppid) |
73 | { | |
12c86877 | 74 | signal(SIGALRM, dokill); |
12c86877 | 75 | alarm(1); |
12c86877 BH |
76 | return "Exiting"; |
77 | } | |
78 | ||
79 | string DLPingHandler(const vector<string>&parts, Utility::pid_t ppid) | |
80 | { | |
81 | return "PONG"; | |
82 | } | |
83 | ||
84 | string DLShowHandler(const vector<string>&parts, Utility::pid_t ppid) | |
02feff9f | 85 | try |
12c86877 BH |
86 | { |
87 | extern StatBag S; | |
88 | string ret("Wrong number of parameters"); | |
89 | if(parts.size()==2) { | |
90 | if(parts[1]=="*") | |
91 | ret=S.directory(); | |
92 | else | |
93 | ret=S.getValueStr(parts[1]); | |
94 | } | |
95 | ||
96 | return ret; | |
97 | } | |
02feff9f | 98 | catch(...) |
99 | { | |
100 | return "Unknown"; | |
101 | } | |
12c86877 BH |
102 | |
103 | void setStatus(const string &str) | |
104 | { | |
105 | d_status=str; | |
106 | } | |
107 | ||
108 | string DLStatusHandler(const vector<string>&parts, Utility::pid_t ppid) | |
109 | { | |
110 | ostringstream os; | |
111 | os<<ppid<<": "<<d_status; | |
112 | return os.str(); | |
113 | } | |
114 | ||
115 | string DLUptimeHandler(const vector<string>&parts, Utility::pid_t ppid) | |
116 | { | |
117 | ostringstream os; | |
118 | os<<humanDuration(time(0)-s_starttime); | |
119 | return os.str(); | |
120 | } | |
121 | ||
122 | string DLPurgeHandler(const vector<string>&parts, Utility::pid_t ppid) | |
123 | { | |
124 | extern PacketCache PC; | |
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) { | |
131 | ret+=PC.purge(*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 { |
12c86877 | 139 | ret=PC.purge(); |
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 | { | |
149 | extern PacketCache PC; | |
150 | map<char,int> counts=PC.getCounts(); | |
151 | ostringstream os; | |
152 | bool first=true; | |
153 | for(map<char,int>::const_iterator i=counts.begin();i!=counts.end();++i) { | |
154 | if(!first) | |
155 | os<<", "; | |
156 | first=false; | |
157 | ||
158 | if(i->first=='!') | |
159 | os<<"negative queries: "; | |
160 | else if(i->first=='Q') | |
161 | os<<"queries: "; | |
162 | else if(i->first=='n') | |
163 | os<<"non-recursive packets: "; | |
164 | else if(i->first=='r') | |
165 | os<<"recursive packets: "; | |
166 | else | |
167 | os<<"unknown: "; | |
168 | ||
169 | os<<i->second; | |
170 | } | |
171 | ||
172 | return os.str(); | |
173 | } | |
174 | ||
ba7244a5 PD |
175 | string DLQTypesHandler(const vector<string>&parts, Utility::pid_t ppid) |
176 | { | |
09425ce1 | 177 | return g_rs.getQTypeReport(); |
ba7244a5 | 178 | } |
12c86877 | 179 | |
93698ef3 PD |
180 | string DLRSizesHandler(const vector<string>&parts, Utility::pid_t ppid) |
181 | { | |
182 | typedef map<uint16_t, uint64_t> respsizes_t; | |
183 | respsizes_t respsizes = g_rs.getSizeResponseCounts(); | |
184 | ostringstream os; | |
185 | boost::format fmt("%d\t%d\n"); | |
ef7cd021 | 186 | for(const respsizes_t::value_type& val : respsizes) { |
93698ef3 PD |
187 | os << (fmt % val.first % val.second).str(); |
188 | } | |
189 | return os.str(); | |
190 | } | |
191 | ||
192 | string DLRemotesHandler(const vector<string>&parts, Utility::pid_t ppid) | |
193 | { | |
194 | extern StatBag S; | |
195 | typedef vector<pair<string, unsigned int> > totals_t; | |
196 | totals_t totals = S.getRing("remotes"); | |
197 | string ret; | |
198 | boost::format fmt("%s\t%d\n"); | |
ef7cd021 | 199 | for(totals_t::value_type& val : totals) { |
93698ef3 PD |
200 | ret += (fmt % val.first % val.second).str(); |
201 | } | |
202 | return ret; | |
203 | } | |
204 | ||
12c86877 BH |
205 | string DLSettingsHandler(const vector<string>&parts, Utility::pid_t ppid) |
206 | { | |
207 | static const char *whitelist[]={"query-logging",0}; | |
208 | const char **p; | |
209 | ||
210 | if(parts.size()!=3) { | |
211 | return "Syntax: set variable value"; | |
212 | } | |
213 | ||
214 | for(p=whitelist;*p;p++) | |
215 | if(*p==parts[1]) | |
216 | break; | |
3120733f | 217 | if(*p) { |
379ab445 | 218 | ::arg().set(parts[1])=parts[2]; |
12c86877 BH |
219 | return "done"; |
220 | } | |
221 | else | |
3120733f | 222 | return "This setting cannot be changed at runtime, or no such setting"; |
12c86877 BH |
223 | |
224 | } | |
225 | ||
12c86877 BH |
226 | string DLVersionHandler(const vector<string>&parts, Utility::pid_t ppid) |
227 | { | |
12c86877 BH |
228 | return VERSION; |
229 | } | |
230 | ||
ef1d2f44 BH |
231 | string DLNotifyRetrieveHandler(const vector<string>&parts, Utility::pid_t ppid) |
232 | { | |
233 | extern CommunicatorClass Communicator; | |
234 | ostringstream os; | |
235 | if(parts.size()!=2) | |
236 | return "syntax: retrieve domain"; | |
237 | ||
63faa7c9 CH |
238 | DNSName domain; |
239 | try { | |
240 | domain = DNSName(parts[1]); | |
241 | } catch (...) { | |
242 | return "Failed to parse domain as valid DNS name"; | |
243 | } | |
244 | ||
ef1d2f44 | 245 | DomainInfo di; |
295c4a00 | 246 | UeberBackend B; |
63faa7c9 CH |
247 | if(!B.getDomainInfo(domain, di)) |
248 | return "Domain '"+domain.toString()+"' unknown"; | |
ef1d2f44 | 249 | |
e5b11b2f | 250 | if(di.masters.empty()) |
63faa7c9 | 251 | return "Domain '"+domain.toString()+"' is not a slave domain (or has no master defined)"; |
f2c11a48 | 252 | |
e5b11b2f | 253 | random_shuffle(di.masters.begin(), di.masters.end()); |
d3ee36f2 | 254 | Communicator.addSuckRequest(domain, di.masters.front()); |
63faa7c9 | 255 | return "Added retrieval request for '"+domain.toString()+"' from master "+di.masters.front(); |
ef1d2f44 | 256 | } |
12c86877 BH |
257 | |
258 | string DLNotifyHostHandler(const vector<string>&parts, Utility::pid_t ppid) | |
259 | { | |
260 | extern CommunicatorClass Communicator; | |
261 | ostringstream os; | |
262 | if(parts.size()!=3) | |
ea44d9d3 | 263 | return "syntax: notify-host domain ip"; |
aef133df KD |
264 | if(!::arg().mustDo("master") && !::arg().mustDo("slave-renotify")) |
265 | return "PowerDNS not configured as master or slave with re-notifications"; | |
5762f14e | 266 | |
c1a295ca CH |
267 | DNSName domain; |
268 | try { | |
269 | domain = DNSName(parts[1]); | |
270 | } catch (...) { | |
271 | return "Failed to parse domain as valid DNS name"; | |
272 | } | |
273 | ||
c069c1f2 BH |
274 | try { |
275 | ComboAddress ca(parts[2]); | |
276 | } catch(...) | |
277 | { | |
5762f14e | 278 | return "Unable to convert '"+parts[2]+"' to an IP address"; |
c069c1f2 BH |
279 | } |
280 | ||
c1a295ca CH |
281 | L<<Logger::Warning<<"Notification request to host "<<parts[2]<<" for domain '"<<domain<<"' received from operator"<<endl; |
282 | Communicator.notify(domain, parts[2]); | |
12c86877 BH |
283 | return "Added to queue"; |
284 | } | |
285 | ||
286 | string DLNotifyHandler(const vector<string>&parts, Utility::pid_t ppid) | |
287 | { | |
288 | extern CommunicatorClass Communicator; | |
f1b4b713 | 289 | UeberBackend B; |
12c86877 BH |
290 | if(parts.size()!=2) |
291 | return "syntax: notify domain"; | |
aef133df KD |
292 | if(!::arg().mustDo("master") && !::arg().mustDo("slave-renotify")) |
293 | return "PowerDNS not configured as master or slave with re-notifications"; | |
11a45617 | 294 | L<<Logger::Warning<<"Notification request for domain '"<<parts[1]<<"' received from operator"<<endl; |
f1b4b713 KM |
295 | |
296 | if (parts[1] == "*") { | |
297 | vector<DomainInfo> domains; | |
298 | B.getAllDomains(&domains); | |
299 | ||
300 | int total = 0; | |
301 | int notified = 0; | |
302 | for (vector<DomainInfo>::const_iterator di=domains.begin(); di != domains.end(); di++) { | |
303 | if (di->kind == 0) { // MASTER | |
304 | total++; | |
305 | if(Communicator.notifyDomain(di->zone)) | |
306 | notified++; | |
307 | } | |
308 | } | |
309 | ||
310 | if (total != notified) | |
311 | return itoa(notified)+" out of "+itoa(total)+" zones added to queue - see log"; | |
312 | return "Added "+itoa(total)+" MASTER zones to queue"; | |
313 | } else { | |
100cf78b CH |
314 | DNSName domain; |
315 | try { | |
316 | domain = DNSName(parts[1]); | |
317 | } catch (...) { | |
318 | return "Failed to parse domain as valid DNS name"; | |
319 | } | |
290a083d | 320 | if(!Communicator.notifyDomain(DNSName(parts[1]))) |
f1b4b713 KM |
321 | return "Failed to add to the queue - see log"; |
322 | return "Added to queue"; | |
323 | } | |
12c86877 BH |
324 | } |
325 | ||
326 | string DLRediscoverHandler(const vector<string>&parts, Utility::pid_t ppid) | |
327 | { | |
295c4a00 | 328 | UeberBackend B; |
6242d8a4 KM |
329 | try { |
330 | L<<Logger::Error<<"Rediscovery was requested"<<endl; | |
331 | string status="Ok"; | |
295c4a00 | 332 | B.rediscover(&status); |
6242d8a4 KM |
333 | return status; |
334 | } | |
335 | catch(PDNSException &ae) { | |
336 | return ae.reason; | |
337 | } | |
338 | ||
12c86877 BH |
339 | } |
340 | ||
341 | string DLReloadHandler(const vector<string>&parts, Utility::pid_t ppid) | |
342 | { | |
295c4a00 CH |
343 | UeberBackend B; |
344 | B.reload(); | |
12c86877 BH |
345 | L<<Logger::Error<<"Reload was requested"<<endl; |
346 | return "Ok"; | |
347 | } | |
64bcb6be | 348 | |
f45a622c | 349 | |
ca8e1742 | 350 | string DLListZones(const vector<string>&parts, Utility::pid_t ppid) |
767da1a0 RA |
351 | { |
352 | UeberBackend B; | |
36811022 | 353 | L<<Logger::Notice<<"Received request to list zones."<<endl; |
767da1a0 RA |
354 | vector<DomainInfo> domains; |
355 | B.getAllDomains(&domains); | |
356 | ostringstream ret; | |
357 | int kindFilter = -1; | |
358 | if (parts.size() > 1) { | |
359 | if (toUpper(parts[1]) == "MASTER") | |
360 | kindFilter = 0; | |
361 | else if (toUpper(parts[1]) == "SLAVE") | |
362 | kindFilter = 1; | |
363 | else if (toUpper(parts[1]) == "NATIVE") | |
364 | kindFilter = 2; | |
365 | } | |
366 | ||
367 | int count = 0; | |
368 | ||
369 | for (vector<DomainInfo>::const_iterator di=domains.begin(); di != domains.end(); di++) { | |
370 | if (di->kind == kindFilter || kindFilter == -1) { | |
675fa24c | 371 | ret<<di->zone.toString()<<endl; |
767da1a0 RA |
372 | count++; |
373 | } | |
374 | } | |
375 | if (kindFilter != -1) | |
36811022 | 376 | ret<<parts[1]<<" zonecount:"<<count; |
767da1a0 | 377 | else |
36811022 | 378 | ret<<"All zonecount:"<<count; |
767da1a0 RA |
379 | |
380 | return ret.str(); | |
381 | } | |
3e8216c8 PD |
382 | |
383 | string DLPolicy(const vector<string>&parts, Utility::pid_t ppid) | |
384 | { | |
385 | if(LPE) { | |
386 | return LPE->policycmd(parts); | |
387 | } | |
388 | else { | |
389 | return "no policy script loaded"; | |
390 | } | |
391 | } | |
24e0b305 AT |
392 | |
393 | #ifdef HAVE_P11KIT1 | |
248d701f | 394 | extern bool PKCS11ModuleSlotLogin(const std::string& module, const string& tokenId, const std::string& pin); |
24e0b305 AT |
395 | #endif |
396 | ||
397 | string DLTokenLogin(const vector<string>&parts, Utility::pid_t ppid) | |
398 | { | |
399 | #ifndef HAVE_P11KIT1 | |
400 | return "PKCS#11 support not compiled in"; | |
401 | #else | |
402 | if (parts.size() != 4) { | |
335da0ba | 403 | return "invalid number of parameters, needs 4, got " + std::to_string(parts.size()); |
24e0b305 AT |
404 | } |
405 | ||
248d701f | 406 | if (PKCS11ModuleSlotLogin(parts[1], parts[2], parts[3])) { |
24e0b305 AT |
407 | return "logged in"; |
408 | } else { | |
409 | return "could not log in, check logs"; | |
410 | } | |
411 | #endif | |
412 | } |