Kea 2.2.0
nc_remove.cc
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1// Copyright (C) 2013-2022 Internet Systems Consortium, Inc. ("ISC")
2//
3// This Source Code Form is subject to the terms of the Mozilla Public
4// License, v. 2.0. If a copy of the MPL was not distributed with this
5// file, You can obtain one at http://mozilla.org/MPL/2.0/.
6
7#include <config.h>
8
9#include <d2/nc_remove.h>
10#include <d2srv/d2_cfg_mgr.h>
11#include <d2srv/d2_log.h>
12
13#include <functional>
14
15namespace isc {
16namespace d2 {
17
18
19// NameRemoveTransaction states
23
24// NameRemoveTransaction events
25// Currently NameRemoveTransaction does not define any events.
26
30 DdnsDomainPtr& forward_domain,
31 DdnsDomainPtr& reverse_domain,
32 D2CfgMgrPtr& cfg_mgr)
33 : NameChangeTransaction(io_service, ncr, forward_domain, reverse_domain,
34 cfg_mgr) {
35 if (ncr->getChangeType() != isc::dhcp_ddns::CHG_REMOVE) {
37 "NameRemoveTransaction, request type must be CHG_REMOVE");
38 }
39}
40
42}
43
44void
46 // Call superclass impl first.
48
49 // Define NameRemoveTransaction events.
50 // Currently NameRemoveTransaction does not define any events.
51 // defineEvent(TBD_EVENT, "TBD_EVT");
52}
53
54void
56 // Call superclass implementation first to verify its events. These are
57 // events common to all transactions, and they must be defined.
58 // SELECT_SERVER_EVT
59 // SERVER_SELECTED_EVT
60 // SERVER_IO_ERROR_EVT
61 // NO_MORE_SERVERS_EVT
62 // IO_COMPLETED_EVT
63 // UPDATE_OK_EVT
64 // UPDATE_FAILED_EVT
66
67 // Verify NameRemoveTransaction events by attempting to fetch them.
68 // Currently NameRemoveTransaction does not define any events.
69 // getEvent(TBD_EVENT);
70}
71
72void
74 // Call superclass impl first.
76
77 // Define NameRemoveTransaction states.
78 defineState(READY_ST, "READY_ST",
79 std::bind(&NameRemoveTransaction::readyHandler, this));
80
81 defineState(SELECTING_FWD_SERVER_ST, "SELECTING_FWD_SERVER_ST",
83 this));
84
85 defineState(SELECTING_REV_SERVER_ST, "SELECTING_REV_SERVER_ST",
87 this));
88
89 defineState(REMOVING_FWD_ADDRS_ST, "REMOVING_FWD_ADDRS_ST",
91 this));
92
93 defineState(REMOVING_FWD_RRS_ST, "REMOVING_FWD_RRS_ST",
95 this));
96
97 defineState(REMOVING_REV_PTRS_ST, "REMOVING_REV_PTRS_ST",
99 this));
100
101 defineState(PROCESS_TRANS_OK_ST, "PROCESS_TRANS_OK_ST",
103 this));
104
105 defineState(PROCESS_TRANS_FAILED_ST, "PROCESS_TRANS_FAILED_ST",
107 this));
108}
109
110void
112 // Call superclass implementation first to verify its states. These are
113 // states common to all transactions, and they must be defined.
114 // READY_ST
115 // SELECTING_FWD_SERVER_ST
116 // SELECTING_REV_SERVER_ST
117 // PROCESS_TRANS_OK_ST
118 // PROCESS_TRANS_FAILED_ST
120
121 // Verify NameRemoveTransaction states by attempting to fetch them.
125}
126
127void
129 switch(getNextEvent()) {
130 case START_EVT:
131 if (getForwardDomain()) {
132 // Request includes a forward change, do that first.
134 } else {
135 // Reverse change only, transition accordingly.
137 }
138
139 break;
140 default:
141 // Event is invalid.
143 "Wrong event for context: " << getContextStr());
144 }
145}
146
147void
149 switch(getNextEvent()) {
151 // First time through for this transaction, so initialize server
152 // selection.
154 break;
156 // We failed to communicate with current server. Attempt to select
157 // another one below.
158 break;
159 default:
160 // Event is invalid.
162 "Wrong event for context: " << getContextStr());
163 }
164
165 // Select the next server from the list of forward servers.
166 if (selectNextServer()) {
167 // We have a server to try.
169 } else {
170 // Server list is exhausted, so fail the transaction.
172 }
173}
174
175void
177 if (doOnEntry()) {
178 // Clear the update attempts count on initial transition.
180 }
181
182 switch(getNextEvent()) {
184 try {
187 } catch (const std::exception& ex) {
188 // While unlikely, the build might fail if we have invalid
189 // data. Should that be the case, we need to fail the
190 // transaction.
193 .arg(getRequestId())
194 .arg(getNcr()->toText())
195 .arg(ex.what());
197 break;
198 }
199
200 // Call sendUpdate() to initiate the async send. Note it also sets
201 // next event to NOP_EVT.
202 sendUpdate("Forward A/AAAA Remove");
203 break;
204
205 case IO_COMPLETED_EVT: {
206 switch (getDnsUpdateStatus()) {
207 case DNSClient::SUCCESS: {
208 // We successfully received a response packet from the server.
209 // The RCODE will be based on a value-dependent RRset search,
210 // see RFC 2136 section 3.2.3/3.2.4.
211 const dns::Rcode& rcode = getDnsUpdateResponse()->getRcode();
212 if ((rcode == dns::Rcode::NOERROR()) ||
213 (rcode == dns::Rcode::NXRRSET())) {
214 // We were able to remove it or it wasn't there, now we
215 // need to remove any other RRs for this FQDN.
217 } else {
218 // Per RFC4703 any other value means cease.
219 // If we get not authorized should we try the next server in
220 // the list? @todo This needs some discussion perhaps.
222 .arg(getRequestId())
223 .arg(getCurrentServer()->toText())
224 .arg(getNcr()->getFqdn())
225 .arg(rcode.getCode());
227 }
228
229 break;
230 }
231
233 case DNSClient::OTHER:
234 // We couldn't send to the current server, log it and set up
235 // to select the next server for a retry.
236 // @note For now we treat OTHER as an IO error like TIMEOUT. It
237 // is not entirely clear if this is accurate.
239 .arg(getRequestId())
240 .arg(getNcr()->getFqdn())
241 .arg(getCurrentServer()->toText());
242
244 break;
245
247 // A response was received but was corrupt. Retry it like an IO
248 // error.
250 .arg(getRequestId())
251 .arg(getCurrentServer()->toText())
252 .arg(getNcr()->getFqdn());
253
255 break;
256
257 default:
258 // Any other value and we will fail this transaction, something
259 // bigger is wrong.
262 .arg(getRequestId())
263 .arg(getDnsUpdateStatus())
264 .arg(getNcr()->getFqdn())
265 .arg(getCurrentServer()->toText());
266
268 break;
269 } // end switch on dns_status
270
271 break;
272 } // end case IO_COMPLETE_EVT
273
274 default:
275 // Event is invalid.
277 "Wrong event for context: " << getContextStr());
278 }
279}
280
281
282void
284 if (doOnEntry()) {
285 // Clear the update attempts count on initial transition.
287 }
288
289 switch(getNextEvent()) {
290 case UPDATE_OK_EVT:
292 try {
295 } catch (const std::exception& ex) {
296 // While unlikely, the build might fail if we have invalid
297 // data. Should that be the case, we need to fail the
298 // transaction.
301 .arg(getRequestId())
302 .arg(getNcr()->toText())
303 .arg(ex.what());
305 break;
306 }
307
308 // Call sendUpdate() to initiate the async send. Note it also sets
309 // next event to NOP_EVT.
310 sendUpdate("Forward RR Remove");
311 break;
312
313 case IO_COMPLETED_EVT: {
314 switch (getDnsUpdateStatus()) {
315 case DNSClient::SUCCESS: {
316 // We successfully received a response packet from the server.
317 // The RCODE will be based on a value-dependent RRset search,
318 // see RFC 2136 section 3.2.3/3.2.4.
319 const dns::Rcode& rcode = getDnsUpdateResponse()->getRcode();
320 if ((rcode == dns::Rcode::NOERROR()) ||
321 (rcode == dns::Rcode::NXRRSET())) {
322 // We were able to remove them or they were not there (
323 // Rcode of NXRRSET means there are no matching RRsets).
324 // In either case, we consider it success and mark it as done.
326
327 // If request calls for reverse update then do that next,
328 // otherwise we can process ok.
329 if (getReverseDomain()) {
331 } else {
333 }
334 } else {
335 // Per RFC4703 any other value means cease.
336 // If we get not authorized should try the next server in
337 // the list? @todo This needs some discussion perhaps.
339 .arg(getRequestId())
340 .arg(getCurrentServer()->toText())
341 .arg(getNcr()->getFqdn())
342 .arg(rcode.getCode());
344 }
345
346 break;
347 }
348
350 case DNSClient::OTHER:
351 // We couldn't send to the current server, log it and set up
352 // to select the next server for a retry.
353 // @note For now we treat OTHER as an IO error like TIMEOUT. It
354 // is not entirely clear if this is accurate.
356 .arg(getRequestId())
357 .arg(getNcr()->getFqdn())
358 .arg(getCurrentServer()->toText());
359
360 // @note If we exhaust the IO retries for the current server
361 // due to IO failures, we will abort the remaining updates.
362 // The rational is that we are only in this state, if the remove
363 // of the forward address RR succeeded (removingFwdAddrsHandler)
364 // on the current server. Therefore we should not attempt another
365 // removal on a different server. This is perhaps a point
366 // for discussion.
367 // @todo Should we go ahead with the reverse remove?
369 break;
370
372 // A response was received but was corrupt. Retry it like an IO
373 // error.
375 .arg(getRequestId())
376 .arg(getCurrentServer()->toText())
377 .arg(getNcr()->getFqdn());
378
379 // If we are out of retries on this server abandon the transaction.
380 // (Same logic as the case for TIMEOUT above).
382 break;
383
384 default:
385 // Any other value and we will fail this transaction, something
386 // bigger is wrong.
389 .arg(getRequestId())
390 .arg(getDnsUpdateStatus())
391 .arg(getNcr()->getFqdn())
392 .arg(getCurrentServer()->toText());
393
395 break;
396 } // end switch on dns_status
397
398 break;
399 } // end case IO_COMPLETE_EVT
400
401 default:
402 // Event is invalid.
404 "Wrong event for context: " << getContextStr());
405 }
406}
407
408
409void
411 switch(getNextEvent()) {
413 // First time through for this transaction, so initialize server
414 // selection.
416 break;
418 // We failed to communicate with current server. Attempt to select
419 // another one below.
420 break;
421 default:
422 // Event is invalid.
424 "Wrong event for context: " << getContextStr());
425 }
426
427 // Select the next server from the list of forward servers.
428 if (selectNextServer()) {
429 // We have a server to try.
431 } else {
432 // Server list is exhausted, so fail the transaction.
434 }
435}
436
437
438void
440 if (doOnEntry()) {
441 // Clear the update attempts count on initial transition.
443 }
444
445 switch(getNextEvent()) {
447 try {
450 } catch (const std::exception& ex) {
451 // While unlikely, the build might fail if we have invalid
452 // data. Should that be the case, we need to fail the
453 // transaction.
455 .arg(getRequestId())
456 .arg(getNcr()->toText())
457 .arg(ex.what());
459 break;
460 }
461
462 // Call sendUpdate() to initiate the async send. Note it also sets
463 // next event to NOP_EVT.
464 sendUpdate("Reverse Remove");
465 break;
466
467 case IO_COMPLETED_EVT: {
468 switch (getDnsUpdateStatus()) {
469 case DNSClient::SUCCESS: {
470 // We successfully received a response packet from the server.
471 // The RCODE will be based on a value-dependent RRset search,
472 // see RFC 2136 section 3.2.3/3.2.4.
473 const dns::Rcode& rcode = getDnsUpdateResponse()->getRcode();
474 if ((rcode == dns::Rcode::NOERROR()) ||
475 (rcode == dns::Rcode::NXRRSET())) {
476 // We were able to remove the reverse mapping or they were
477 // not there (Rcode of NXRRSET means there are no matching
478 // RRsets). In either case, mark it as done.
481 } else {
482 // Per RFC4703 any other value means cease.
483 // If we get not authorized should try the next server in
484 // the list? @todo This needs some discussion perhaps.
486 .arg(getRequestId())
487 .arg(getCurrentServer()->toText())
488 .arg(getNcr()->getFqdn())
489 .arg(rcode.getCode());
491 }
492
493 break;
494 }
495
497 case DNSClient::OTHER:
498 // We couldn't send to the current server, log it and set up
499 // to select the next server for a retry.
500 // @note For now we treat OTHER as an IO error like TIMEOUT. It
501 // is not entirely clear if this is accurate.
503 .arg(getRequestId())
504 .arg(getNcr()->getFqdn())
505 .arg(getCurrentServer()->toText());
506
507 // If we are out of retries on this server, we go back and start
508 // all over on a new server.
510 break;
511
513 // A response was received but was corrupt. Retry it like an IO
514 // error.
516 .arg(getRequestId())
517 .arg(getCurrentServer()->toText())
518 .arg(getNcr()->getFqdn());
519
520 // If we are out of retries on this server, we go back and start
521 // all over on a new server.
523 break;
524
525 default:
526 // Any other value and we will fail this transaction, something
527 // bigger is wrong.
530 .arg(getRequestId())
531 .arg(getDnsUpdateStatus())
532 .arg(getNcr()->getFqdn())
533 .arg(getCurrentServer()->toText());
534
536 break;
537 } // end switch on dns_status
538
539 break;
540 } // end case IO_COMPLETE_EVT
541
542 default:
543 // Event is invalid.
545 "Wrong event for context: " << getContextStr());
546 }
547}
548
549
550void
552 switch(getNextEvent()) {
553 case UPDATE_OK_EVT:
555 .arg(getRequestId())
556 .arg(getNcr()->toText());
558 endModel();
559 break;
560 default:
561 // Event is invalid.
563 "Wrong event for context: " << getContextStr());
564 }
565}
566
567void
569 switch(getNextEvent()) {
575 .arg(getRequestId())
577 endModel();
578 break;
579 default:
580 // Event is invalid.
582 "Wrong event for context: " << getContextStr());
583 }
584}
585
586void
588 // Construct an empty request.
590
591 // Content on this request is based on RFC 4703, section 5.5, paragraph 4.
592 // Construct dns::Name from NCR fqdn.
593 dns::Name fqdn(dns::Name(getNcr()->getFqdn()));
594 // First build the Prerequisite Section
595
596 // Create an DHCID matches prerequisite RR and add it to the
597 // pre-requisite section
598 // Based on RFC 2136, section 2.4.2.
599 dns::RRsetPtr prereq(new dns::RRset(fqdn, dns::RRClass::IN(),
601 addDhcidRdata(prereq);
602 request->addRRset(D2UpdateMessage::SECTION_PREREQUISITE, prereq);
603
604 // Next build the Update Section
605
606 // Create the FQDN/IP 'delete' RR and add it to the update section.
607 // Add the RR to update section.
608 // Based on 2136 section 2.5.4
611 addLeaseAddressRdata(update);
612 request->addRRset(D2UpdateMessage::SECTION_UPDATE, update);
613
614 // Set the transaction's update request to the new request.
615 setDnsUpdateRequest(request);
616}
617
618void
620 // Construct an empty request.
622
623 // Construct dns::Name from NCR fqdn.
624 dns::Name fqdn(dns::Name(getNcr()->getFqdn()));
625
626 // Content on this request is based on RFC 4703, section 5.5, paragraph 5.
627 // First build the Prerequisite Section.
628
629 // Now create an DHCID matches prerequisite RR.
630 // Set the RR's RData to DHCID.
631 // Add it to the pre-requisite section.
632 // Based on RFC 2136, section 2.4.2.
633 dns::RRsetPtr prereq(new dns::RRset(fqdn, dns::RRClass::IN(),
635 addDhcidRdata(prereq);
636 request->addRRset(D2UpdateMessage::SECTION_PREREQUISITE, prereq);
637
638 // Create an assertion that there are no A RRs for the FQDN.
639 // Add it to the pre-reqs.
640 // Based on RFC 2136, section 2.4.3.
641 prereq.reset(new dns::RRset(fqdn, dns::RRClass::NONE(),
643 request->addRRset(D2UpdateMessage::SECTION_PREREQUISITE, prereq);
644
645 // Create an assertion that there are no A RRs for the FQDN.
646 // Add it to the pre-reqs.
647 // Based on RFC 2136, section 2.4.3.
648 prereq.reset(new dns::RRset(fqdn, dns::RRClass::NONE(),
650 request->addRRset(D2UpdateMessage::SECTION_PREREQUISITE, prereq);
651
652 // Next build the Update Section.
653
654 // Create the 'delete' of all RRs for FQDN.
655 // Set the message RData to lease address.
656 // Add the RR to update section.
657 // Based on RFC 2136, section 2.5.3.
658 dns::RRsetPtr update(new dns::RRset(fqdn, dns::RRClass::ANY(),
660 request->addRRset(D2UpdateMessage::SECTION_UPDATE, update);
661
662 // Set the transaction's update request to the new request.
663 setDnsUpdateRequest(request);
664}
665
666void
668 // Construct an empty request.
670
671 // Create the reverse IP address "FQDN".
672 std::string rev_addr = D2CfgMgr::reverseIpAddress(getNcr()->getIpAddress());
673 dns::Name rev_ip(rev_addr);
674
675 // Content on this request is based on RFC 4703, section 5.5, paragraph 2.
676 // First build the Prerequisite Section.
677 // (Note that per RFC 4703, section 5.4, there is no need to validate
678 // DHCID RR for PTR entries.)
679
680 // Create an assertion that the PTRDNAME in the PTR record matches the
681 // client's FQDN for the address that was released.
682 // Based on RFC 2136, section 3.2.3
683 dns::RRsetPtr prereq(new dns::RRset(rev_ip, dns::RRClass::IN(),
685 addPtrRdata(prereq);
686 request->addRRset(D2UpdateMessage::SECTION_PREREQUISITE, prereq);
687
688 // Now, build the Update section.
689
690 // Create a delete of any RRs for the FQDN and add it to update section.
691 // Based on RFC 2136, section 3.4.2.3
692 dns::RRsetPtr update(new dns::RRset(rev_ip, dns::RRClass::ANY(),
694 request->addRRset(D2UpdateMessage::SECTION_UPDATE, update);
695
696 // Set the transaction's update request to the new request.
697 setDnsUpdateRequest(request);
698}
699
700} // namespace isc::d2
701} // namespace isc
static std::string reverseIpAddress(const std::string &address)
Generate a reverse order string for the given IP address.
Definition: d2_cfg_mgr.cc:170
@ TIMEOUT
No response, timeout.
Definition: dns_client.h:60
@ OTHER
Other, unclassified error.
Definition: dns_client.h:63
@ INVALID_RESPONSE
Response received but invalid.
Definition: dns_client.h:62
@ SUCCESS
Response received and is ok.
Definition: dns_client.h:59
Embodies the "life-cycle" required to carry out a DDNS update.
Definition: nc_trans.h:77
static const int SELECTING_FWD_SERVER_ST
State in which forward DNS server selection is done.
Definition: nc_trans.h:91
void retryTransition(const int fail_to_state)
Determines the state and next event based on update attempts.
Definition: nc_trans.cc:286
static const int PROCESS_TRANS_FAILED_ST
State which processes an unsuccessful transaction conclusion.
Definition: nc_trans.h:105
static const int READY_ST
State from which a transaction is started.
Definition: nc_trans.h:83
const D2UpdateMessagePtr & getDnsUpdateResponse() const
Fetches the most recent DNS update response packet.
Definition: nc_trans.cc:553
static const int PROCESS_TRANS_OK_ST
State which processes successful transaction conclusion.
Definition: nc_trans.h:102
static const int UPDATE_OK_EVT
Issued when the attempted update successfully completed.
Definition: nc_trans.h:135
virtual void verifyStates()
Validates the contents of the set of states.
Definition: nc_trans.cc:265
virtual D2UpdateMessagePtr prepNewRequest(DdnsDomainPtr domain)
Creates a new DNS update request based on the given domain.
Definition: nc_trans.cc:343
static const int UPDATE_FAILED_EVT
Issued when the attempted update fails to complete.
Definition: nc_trans.h:141
const dns::RRType & getAddressRRType() const
Returns the DHCP data type for the lease address.
Definition: nc_trans.cc:573
const dhcp_ddns::NameChangeRequestPtr & getNcr() const
Fetches the NameChangeRequest for this transaction.
Definition: nc_trans.cc:425
void initServerSelection(const DdnsDomainPtr &domain)
Initializes server selection from the given DDNS domain.
Definition: nc_trans.cc:455
static const int IO_COMPLETED_EVT
Issued when a DNS update packet exchange has completed.
Definition: nc_trans.h:130
static const int SELECT_SERVER_EVT
Issued when a server needs to be selected.
Definition: nc_trans.h:113
static const int SERVER_IO_ERROR_EVT
Issued when an update fails due to an IO error.
Definition: nc_trans.h:119
std::string getRequestId() const
Fetches the request id that identifies this transaction.
Definition: nc_trans.cc:435
virtual void defineStates()
Adds states defined by NameChangeTransaction to the state set.
Definition: nc_trans.cc:257
void addLeaseAddressRdata(dns::RRsetPtr &rrset)
Adds an RData for the lease address to the given RRset.
Definition: nc_trans.cc:366
virtual void sendUpdate(const std::string &comment="")
Send the update request to the current server.
Definition: nc_trans.cc:192
void setForwardChangeCompleted(const bool value)
Sets the forward change completion flag to the given value.
Definition: nc_trans.cc:328
void addPtrRdata(dns::RRsetPtr &rrset)
Adds an RData for the lease FQDN to the given RRset.
Definition: nc_trans.cc:408
bool selectNextServer()
Selects the next server in the current server list.
Definition: nc_trans.cc:467
void setNcrStatus(const dhcp_ddns::NameChangeStatus &status)
Sets the status of the transaction's NameChangeRequest.
Definition: nc_trans.cc:538
DdnsDomainPtr & getForwardDomain()
Fetches the forward DdnsDomain.
Definition: nc_trans.cc:445
virtual void verifyEvents()
Validates the contents of the set of events.
Definition: nc_trans.cc:242
void addDhcidRdata(dns::RRsetPtr &rrset)
Adds an RData for the lease client's DHCID to the given RRset.
Definition: nc_trans.cc:388
void clearDnsUpdateRequest()
Destroys the current update request packet.
Definition: nc_trans.cc:303
void clearUpdateAttempts()
Resets the update attempts count.
Definition: nc_trans.cc:308
static const int SELECTING_REV_SERVER_ST
State in which reverse DNS server selection is done.
Definition: nc_trans.h:99
DNSClient::Status getDnsUpdateStatus() const
Fetches the most recent DNS update status.
Definition: nc_trans.cc:548
void setDnsUpdateRequest(D2UpdateMessagePtr &request)
Sets the update request packet to the given packet.
Definition: nc_trans.cc:298
static const int NO_MORE_SERVERS_EVT
Issued when there are no more servers from which to select.
Definition: nc_trans.h:125
virtual void defineEvents()
Adds events defined by NameChangeTransaction to the event set.
Definition: nc_trans.cc:227
void setReverseChangeCompleted(const bool value)
Sets the reverse change completion flag to the given value.
Definition: nc_trans.cc:333
const DnsServerInfoPtr & getCurrentServer() const
Fetches the currently selected server.
Definition: nc_trans.cc:533
static const int SERVER_SELECTED_EVT
Issued when a server has been selected.
Definition: nc_trans.h:116
DdnsDomainPtr & getReverseDomain()
Fetches the reverse DdnsDomain.
Definition: nc_trans.cc:450
std::string transactionOutcomeString() const
Returns a string version of transaction outcome.
Definition: nc_trans.cc:170
Thrown if the NameRemoveTransaction encounters a general error.
Definition: nc_remove.h:18
virtual void verifyStates()
Validates the contents of the set of states.
Definition: nc_remove.cc:111
virtual void defineEvents()
Adds events defined by NameRemoveTransaction to the event set.
Definition: nc_remove.cc:45
void processRemoveOkHandler()
State handler for PROCESS_TRANS_OK_ST.
Definition: nc_remove.cc:551
void readyHandler()
State handler for READY_ST.
Definition: nc_remove.cc:128
void buildRemoveRevPtrsRequest()
Builds a DNS request to remove a reverse DNS entry for a FQDN.
Definition: nc_remove.cc:667
virtual void verifyEvents()
Validates the contents of the set of events.
Definition: nc_remove.cc:55
void selectingRevServerHandler()
State handler for SELECTING_REV_SERVER_ST.
Definition: nc_remove.cc:410
void removingFwdAddrsHandler()
State handler for REMOVING_FWD_ADDRS_ST.
Definition: nc_remove.cc:176
static const int REMOVING_REV_PTRS_ST
State that attempts to remove reverse PTR records.
Definition: nc_remove.h:62
virtual void defineStates()
Adds states defined by NameRemoveTransaction to the state set.
Definition: nc_remove.cc:73
void removingRevPtrsHandler()
State handler for REMOVING_REV_PTRS_ST.
Definition: nc_remove.cc:439
NameRemoveTransaction(asiolink::IOServicePtr &io_service, dhcp_ddns::NameChangeRequestPtr &ncr, DdnsDomainPtr &forward_domain, DdnsDomainPtr &reverse_domain, D2CfgMgrPtr &cfg_mgr)
Event sent when replace attempt to fails with address not in use.
Definition: nc_remove.cc:28
void removingFwdRRsHandler()
State handler for REMOVING_FWD_RRS_ST.
Definition: nc_remove.cc:283
static const int REMOVING_FWD_RRS_ST
State that attempts to remove any other forward RRs for the DHCID.
Definition: nc_remove.h:59
void selectingFwdServerHandler()
State handler for SELECTING_FWD_SERVER_ST.
Definition: nc_remove.cc:148
void buildRemoveFwdAddressRequest()
Builds a DNS request to remove a forward DNS address for a FQDN.
Definition: nc_remove.cc:587
void buildRemoveFwdRRsRequest()
Builds a DNS request to remove all forward DNS RRs for a FQDN.
Definition: nc_remove.cc:619
virtual ~NameRemoveTransaction()
Destructor.
Definition: nc_remove.cc:41
void processRemoveFailedHandler()
State handler for PROCESS_TRANS_FAILED_ST.
Definition: nc_remove.cc:568
static const int REMOVING_FWD_ADDRS_ST
State that attempts to remove specific forward address record.
Definition: nc_remove.h:56
The Name class encapsulates DNS names.
Definition: name.h:223
static const RRClass & ANY()
Definition: rrclass.h:301
static const RRClass & NONE()
Definition: rrclass.h:325
static const RRClass & IN()
Definition: rrclass.h:319
The RRTTL class encapsulates TTLs used in DNS resource records.
Definition: rrttl.h:55
static const RRType & ANY()
Definition: rrtype.h:527
static const RRType & AAAA()
Definition: rrtype.h:497
static const RRType & PTR()
Definition: rrtype.h:443
static const RRType & DHCID()
Definition: rrtype.h:503
static const RRType & A()
Definition: rrtype.h:341
The RRset class is a concrete derived class of BasicRRset which contains a pointer to an additional R...
Definition: rrset.h:847
DNS Response Codes (RCODEs) class.
Definition: rcode.h:40
static const Rcode & NOERROR()
A constant object for the NOERROR Rcode (see Rcode::NOERROR_CODE).
Definition: rcode.h:220
static const Rcode & NXRRSET()
A constant object for the NXRRSET Rcode (see Rcode::NXRRSET_CODE).
Definition: rcode.h:268
uint16_t getCode() const
Returns the Rcode code value.
Definition: rcode.h:106
void endModel()
Conducts a normal transition to the end of the model.
Definition: state_model.cc:271
void defineState(unsigned int value, const std::string &label, StateHandler handler, const StatePausing &state_pausing=STATE_PAUSE_NEVER)
Adds an state value and associated label to the set of states.
Definition: state_model.cc:196
unsigned int getNextEvent() const
Fetches the model's next event.
Definition: state_model.cc:373
void transition(unsigned int state, unsigned int event)
Sets up the model to transition into given state with a given event.
Definition: state_model.cc:264
bool doOnEntry()
Checks if on entry flag is true.
Definition: state_model.cc:339
static const int START_EVT
Event issued to start the model execution.
Definition: state_model.h:295
const StatePtr getStateInternal(unsigned int value)
Fetches the state referred to by value.
Definition: state_model.cc:219
std::string getContextStr() const
Convenience method which returns a string rendition of the current state and next event.
Definition: state_model.cc:443
#define isc_throw(type, stream)
A shortcut macro to insert known values into exception arguments.
#define LOG_ERROR(LOGGER, MESSAGE)
Macro to conveniently test error output and log it.
Definition: macros.h:32
#define LOG_INFO(LOGGER, MESSAGE)
Macro to conveniently test info output and log it.
Definition: macros.h:20
const isc::log::MessageID DHCP_DDNS_FORWARD_REMOVE_ADDRS_IO_ERROR
Definition: d2_messages.h:30
boost::shared_ptr< D2UpdateMessage > D2UpdateMessagePtr
Pointer to the DNS Update Message.
boost::shared_ptr< DdnsDomain > DdnsDomainPtr
Defines a pointer for DdnsDomain instances.
Definition: d2_config.h:612
const isc::log::MessageID DHCP_DDNS_REVERSE_REMOVE_RESP_CORRUPT
Definition: d2_messages.h:72
boost::shared_ptr< D2CfgMgr > D2CfgMgrPtr
Defines a shared pointer to D2CfgMgr.
Definition: d2_cfg_mgr.h:334
const isc::log::MessageID DHCP_DDNS_FORWARD_REMOVE_RRS_RESP_CORRUPT
Definition: d2_messages.h:37
const isc::log::MessageID DHCP_DDNS_FORWARD_REMOVE_ADDRS_REJECTED
Definition: d2_messages.h:31
const isc::log::MessageID DHCP_DDNS_FORWARD_REMOVE_ADDRS_RESP_CORRUPT
Definition: d2_messages.h:32
const isc::log::MessageID DHCP_DDNS_FORWARD_REMOVE_RRS_REJECTED
Definition: d2_messages.h:36
const isc::log::MessageID DHCP_DDNS_REMOVE_SUCCEEDED
Definition: d2_messages.h:66
isc::log::Logger d2_to_dns_logger("d2-to-dns")
Definition: d2_log.h:20
const isc::log::MessageID DHCP_DDNS_FORWARD_REMOVE_RRS_BUILD_FAILURE
Definition: d2_messages.h:34
const isc::log::MessageID DHCP_DDNS_FORWARD_REMOVE_ADDRS_BUILD_FAILURE
Definition: d2_messages.h:29
const isc::log::MessageID DHCP_DDNS_FORWARD_REMOVE_RRS_BAD_DNSCLIENT_STATUS
Definition: d2_messages.h:33
const isc::log::MessageID DHCP_DDNS_REVERSE_REMOVE_IO_ERROR
Definition: d2_messages.h:70
const isc::log::MessageID DHCP_DDNS_REVERSE_REMOVE_BAD_DNSCLIENT_STATUS
Definition: d2_messages.h:68
const isc::log::MessageID DHCP_DDNS_REVERSE_REMOVE_BUILD_FAILURE
Definition: d2_messages.h:69
const isc::log::MessageID DHCP_DDNS_REMOVE_FAILED
Definition: d2_messages.h:65
const isc::log::MessageID DHCP_DDNS_FORWARD_REMOVE_ADDRS_BAD_DNSCLIENT_STATUS
Definition: d2_messages.h:28
const isc::log::MessageID DHCP_DDNS_FORWARD_REMOVE_RRS_IO_ERROR
Definition: d2_messages.h:35
const isc::log::MessageID DHCP_DDNS_REVERSE_REMOVE_REJECTED
Definition: d2_messages.h:71
boost::shared_ptr< NameChangeRequest > NameChangeRequestPtr
Defines a pointer to a NameChangeRequest.
Definition: ncr_msg.h:212
boost::shared_ptr< AbstractRRset > RRsetPtr
A pointer-like type pointing to an RRset object.
Definition: rrset.h:47
Defines the logger used by the top-level component of kea-lfc.
This file defines the class NameRemoveTransaction.