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12c86877 BH |
1 | /* |
2 | PowerDNS Versatile Database Driven Nameserver | |
379ab445 | 3 | Copyright (C) 2002 - 2008 PowerDNS.COM BV |
12c86877 BH |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
ea44d9d3 BH |
6 | it under the terms of the GNU General Public License version 2 as |
7 | published by the Free Software Foundation. | |
12c86877 | 8 | |
f782fe38 MH |
9 | Additionally, the license of this program contains a special |
10 | exception which allows to distribute the program in binary form when | |
11 | it is linked against OpenSSL. | |
12 | ||
12c86877 BH |
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 | |
06bd9ccf | 20 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
12c86877 | 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 | ||
238 | const string& domain=parts[1]; | |
239 | DomainInfo di; | |
295c4a00 | 240 | UeberBackend B; |
290a083d | 241 | if(!B.getDomainInfo(DNSName(domain), di)) |
ef1d2f44 BH |
242 | return "Domain '"+domain+"' unknown"; |
243 | ||
e5b11b2f | 244 | if(di.masters.empty()) |
f2c11a48 BH |
245 | return "Domain '"+domain+"' is not a slave domain (or has no master defined)"; |
246 | ||
e5b11b2f | 247 | random_shuffle(di.masters.begin(), di.masters.end()); |
290a083d | 248 | Communicator.addSuckRequest(DNSName(domain), di.masters.front()); |
e5b11b2f | 249 | return "Added retrieval request for '"+domain+"' from master "+di.masters.front(); |
ef1d2f44 | 250 | } |
12c86877 BH |
251 | |
252 | string DLNotifyHostHandler(const vector<string>&parts, Utility::pid_t ppid) | |
253 | { | |
254 | extern CommunicatorClass Communicator; | |
255 | ostringstream os; | |
256 | if(parts.size()!=3) | |
ea44d9d3 | 257 | return "syntax: notify-host domain ip"; |
2685008f PD |
258 | if(!::arg().mustDo("master")) |
259 | return "PowerDNS not configured as master"; | |
5762f14e | 260 | |
c069c1f2 BH |
261 | try { |
262 | ComboAddress ca(parts[2]); | |
263 | } catch(...) | |
264 | { | |
5762f14e | 265 | return "Unable to convert '"+parts[2]+"' to an IP address"; |
c069c1f2 BH |
266 | } |
267 | ||
2d908573 | 268 | L<<Logger::Warning<<"Notification request to host "<<parts[2]<<" for domain '"<<parts[1]<<"' received from operator"<<endl; |
290a083d | 269 | Communicator.notify(DNSName(parts[1]), parts[2]); |
12c86877 BH |
270 | return "Added to queue"; |
271 | } | |
272 | ||
290a083d | 273 | // XXX DNSName pain - if you pass us something that is not DNS, you'll get an exception here, which you never got before |
274 | // and I bet we don't report it well to the user... | |
275 | ||
12c86877 BH |
276 | string DLNotifyHandler(const vector<string>&parts, Utility::pid_t ppid) |
277 | { | |
278 | extern CommunicatorClass Communicator; | |
f1b4b713 | 279 | UeberBackend B; |
12c86877 BH |
280 | if(parts.size()!=2) |
281 | return "syntax: notify domain"; | |
2685008f PD |
282 | if(!::arg().mustDo("master")) |
283 | return "PowerDNS not configured as master"; | |
11a45617 | 284 | L<<Logger::Warning<<"Notification request for domain '"<<parts[1]<<"' received from operator"<<endl; |
f1b4b713 KM |
285 | |
286 | if (parts[1] == "*") { | |
287 | vector<DomainInfo> domains; | |
288 | B.getAllDomains(&domains); | |
289 | ||
290 | int total = 0; | |
291 | int notified = 0; | |
292 | for (vector<DomainInfo>::const_iterator di=domains.begin(); di != domains.end(); di++) { | |
293 | if (di->kind == 0) { // MASTER | |
294 | total++; | |
295 | if(Communicator.notifyDomain(di->zone)) | |
296 | notified++; | |
297 | } | |
298 | } | |
299 | ||
300 | if (total != notified) | |
301 | return itoa(notified)+" out of "+itoa(total)+" zones added to queue - see log"; | |
302 | return "Added "+itoa(total)+" MASTER zones to queue"; | |
303 | } else { | |
290a083d | 304 | if(!Communicator.notifyDomain(DNSName(parts[1]))) |
f1b4b713 KM |
305 | return "Failed to add to the queue - see log"; |
306 | return "Added to queue"; | |
307 | } | |
12c86877 BH |
308 | } |
309 | ||
310 | string DLRediscoverHandler(const vector<string>&parts, Utility::pid_t ppid) | |
311 | { | |
295c4a00 | 312 | UeberBackend B; |
6242d8a4 KM |
313 | try { |
314 | L<<Logger::Error<<"Rediscovery was requested"<<endl; | |
315 | string status="Ok"; | |
295c4a00 | 316 | B.rediscover(&status); |
6242d8a4 KM |
317 | return status; |
318 | } | |
319 | catch(PDNSException &ae) { | |
320 | return ae.reason; | |
321 | } | |
322 | ||
12c86877 BH |
323 | } |
324 | ||
325 | string DLReloadHandler(const vector<string>&parts, Utility::pid_t ppid) | |
326 | { | |
295c4a00 CH |
327 | UeberBackend B; |
328 | B.reload(); | |
12c86877 BH |
329 | L<<Logger::Error<<"Reload was requested"<<endl; |
330 | return "Ok"; | |
331 | } | |
64bcb6be | 332 | |
f45a622c | 333 | |
ca8e1742 | 334 | string DLListZones(const vector<string>&parts, Utility::pid_t ppid) |
767da1a0 RA |
335 | { |
336 | UeberBackend B; | |
36811022 | 337 | L<<Logger::Notice<<"Received request to list zones."<<endl; |
767da1a0 RA |
338 | vector<DomainInfo> domains; |
339 | B.getAllDomains(&domains); | |
340 | ostringstream ret; | |
341 | int kindFilter = -1; | |
342 | if (parts.size() > 1) { | |
343 | if (toUpper(parts[1]) == "MASTER") | |
344 | kindFilter = 0; | |
345 | else if (toUpper(parts[1]) == "SLAVE") | |
346 | kindFilter = 1; | |
347 | else if (toUpper(parts[1]) == "NATIVE") | |
348 | kindFilter = 2; | |
349 | } | |
350 | ||
351 | int count = 0; | |
352 | ||
353 | for (vector<DomainInfo>::const_iterator di=domains.begin(); di != domains.end(); di++) { | |
354 | if (di->kind == kindFilter || kindFilter == -1) { | |
675fa24c | 355 | ret<<di->zone.toString()<<endl; |
767da1a0 RA |
356 | count++; |
357 | } | |
358 | } | |
359 | if (kindFilter != -1) | |
36811022 | 360 | ret<<parts[1]<<" zonecount:"<<count; |
767da1a0 | 361 | else |
36811022 | 362 | ret<<"All zonecount:"<<count; |
767da1a0 RA |
363 | |
364 | return ret.str(); | |
365 | } | |
3e8216c8 PD |
366 | |
367 | string DLPolicy(const vector<string>&parts, Utility::pid_t ppid) | |
368 | { | |
369 | if(LPE) { | |
370 | return LPE->policycmd(parts); | |
371 | } | |
372 | else { | |
373 | return "no policy script loaded"; | |
374 | } | |
375 | } | |
24e0b305 AT |
376 | |
377 | #ifdef HAVE_P11KIT1 | |
248d701f | 378 | extern bool PKCS11ModuleSlotLogin(const std::string& module, const string& tokenId, const std::string& pin); |
24e0b305 AT |
379 | #endif |
380 | ||
381 | string DLTokenLogin(const vector<string>&parts, Utility::pid_t ppid) | |
382 | { | |
383 | #ifndef HAVE_P11KIT1 | |
384 | return "PKCS#11 support not compiled in"; | |
385 | #else | |
386 | if (parts.size() != 4) { | |
387 | return "invalid number of parameters, needs 4, got " + boost::lexical_cast<string>(parts.size()); | |
388 | } | |
389 | ||
248d701f | 390 | if (PKCS11ModuleSlotLogin(parts[1], parts[2], parts[3])) { |
24e0b305 AT |
391 | return "logged in"; |
392 | } else { | |
393 | return "could not log in, check logs"; | |
394 | } | |
395 | #endif | |
396 | } |