Kea 2.2.0
nc_trans.cc
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1// Copyright (C) 2013-2021 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 <d2srv/d2_log.h>
10#include <d2srv/nc_trans.h>
11#include <dns/qid_gen.h>
12#include <dns/rdata.h>
13#include <hooks/hooks.h>
14#include <hooks/hooks_manager.h>
15
16#include <sstream>
17
18using namespace isc::hooks;
19using namespace isc::util;
20
21namespace {
22
24struct NcTransHooks {
25 int hooks_index_select_key_;
26
28 NcTransHooks() {
29 hooks_index_select_key_ = HooksManager::registerHook("select_key");
30 }
31};
32
33// Declare a Hooks object. As this is outside any function or method, it
34// will be instantiated (and the constructor run) when the module is loaded.
35// As a result, the hook indexes will be defined before any method in this
36// module is called.
37
38NcTransHooks Hooks;
39
40}
41
42namespace isc {
43namespace d2 {
44
45// Common transaction states
51
53
54// Common transaction events
62
64
66
70 DdnsDomainPtr& forward_domain,
71 DdnsDomainPtr& reverse_domain,
72 D2CfgMgrPtr& cfg_mgr)
73 : io_service_(io_service), ncr_(ncr), forward_domain_(forward_domain),
74 reverse_domain_(reverse_domain), dns_client_(), dns_update_request_(),
75 dns_update_status_(DNSClient::OTHER), dns_update_response_(),
76 forward_change_completed_(false), reverse_change_completed_(false),
77 current_server_list_(), current_server_(), next_server_pos_(0),
78 update_attempts_(0), cfg_mgr_(cfg_mgr), tsig_key_() {
81 if (!io_service_) {
82 isc_throw(NameChangeTransactionError, "IOServicePtr cannot be null");
83 }
84
85 if (!ncr_) {
87 "NameChangeRequest cannot be null");
88 }
89
90 if (ncr_->isForwardChange() && !(forward_domain_)) {
92 "Forward change must have a forward domain");
93 }
94
95 if (ncr_->isReverseChange() && !(reverse_domain_)) {
97 "Reverse change must have a reverse domain");
98 }
99
100 if (!cfg_mgr_) {
102 "Configuration manager cannot be null");
103 }
104}
105
107}
108
109void
113 .arg(getRequestId());
114
117}
118
119void
121 // Stow the completion status and re-enter the run loop with the event
122 // set to indicate IO completed.
123 // runModel is exception safe so we are good to call it here.
124 // It won't exit until we hit the next IO wait or the state model ends.
125 setDnsUpdateStatus(status);
128 .arg(getRequestId())
129 .arg(current_server_->toText())
130 .arg(responseString());
131
133}
134
135std::string
137 std::ostringstream stream;
138 switch (getDnsUpdateStatus()) {
140 stream << "SUCCESS, rcode: ";
141 if (getDnsUpdateResponse()) {
142 stream << getDnsUpdateResponse()->getRcode().toText();
143 } else {
144 stream << " update response is NULL";
145 }
146 break;
148 stream << "TIMEOUT";
149 break;
151 stream << "IO_STOPPED";
152 break;
154 stream << "INVALID_RESPONSE";
155 break;
156 case DNSClient::OTHER:
157 stream << "OTHER";
158 break;
159 default:
160 stream << "UNKNOWN("
161 << static_cast<int>(getDnsUpdateStatus()) << ")";
162 break;
163
164 }
165
166 return (stream.str());
167}
168
169std::string
171 std::ostringstream stream;
172 stream << "Status: " << (getNcrStatus() == dhcp_ddns::ST_COMPLETED
173 ? "Completed, " : "Failed, ")
174 << "Event: " << getEventLabel(getNextEvent()) << ", ";
175
176 if (ncr_->isForwardChange()) {
177 stream << " Forward change:" << (getForwardChangeCompleted()
178 ? " completed, " : " failed, ");
179 }
180
181 if (ncr_->isReverseChange()) {
182 stream << " Reverse change:" << (getReverseChangeCompleted()
183 ? " completed, " : " failed, ");
184 }
185
186 stream << " request: " << ncr_->toText();
187 return (stream.str());
188}
189
190
191void
192NameChangeTransaction::sendUpdate(const std::string& comment) {
193 try {
194 ++update_attempts_;
195 // @todo add logic to add/replace TSIG key info in request if
196 // use_tsig_ is true. We should be able to navigate to the TSIG key
197 // for the current server. If not we would need to add that.
198
199 D2ParamsPtr d2_params = cfg_mgr_->getD2Params();
200 dns_client_->doUpdate(*io_service_, current_server_->getIpAddress(),
201 current_server_->getPort(), *dns_update_request_,
202 d2_params->getDnsServerTimeout(), tsig_key_);
203 // Message is on its way, so the next event should be NOP_EVT.
207 .arg(getRequestId())
208 .arg(comment)
209 .arg(current_server_->toText());
210 } catch (const std::exception& ex) {
211 // We were unable to initiate the send.
212 // It is presumed that any throw from doUpdate is due to a programmatic
213 // error, such as an unforeseen permutation of data, rather than an IO
214 // failure. IO errors should be caught by the underlying asiolink
215 // mechanisms and manifested as an unsuccessful IO status in the
216 // DNSClient callback. Any problem here most likely means the request
217 // is corrupt in some way and cannot be completed, therefore we will
218 // log it and transition it to failure.
220 .arg(getRequestId())
221 .arg(ex.what());
223 }
224}
225
226void
228 // Call superclass impl first.
230
231 // Define NCT events.
232 defineEvent(SELECT_SERVER_EVT, "SELECT_SERVER_EVT");
233 defineEvent(SERVER_SELECTED_EVT, "SERVER_SELECTED_EVT");
234 defineEvent(SERVER_IO_ERROR_EVT, "SERVER_IO_ERROR_EVT");
235 defineEvent(NO_MORE_SERVERS_EVT, "NO_MORE_SERVERS_EVT");
236 defineEvent(IO_COMPLETED_EVT, "IO_COMPLETED_EVT");
237 defineEvent(UPDATE_OK_EVT, "UPDATE_OK_EVT");
238 defineEvent(UPDATE_FAILED_EVT, "UPDATE_FAILED_EVT");
239}
240
241void
243 // Call superclass impl first.
245
246 // Verify NCT events.
254}
255
256void
258 // Call superclass impl first.
260 // This class is "abstract" in that it does not supply handlers for its
261 // states, derivations must do that therefore they must define them.
262}
263
264void
266 // Call superclass impl first.
268
269 // Verify NCT states. This ensures that derivations provide the handlers.
275}
276
277void
278NameChangeTransaction::onModelFailure(const std::string& explanation) {
281 .arg(getRequestId())
282 .arg(explanation);
283}
284
285void
287 if (update_attempts_ < MAX_UPDATE_TRIES_PER_SERVER) {
288 // Re-enter the current state with same server selected.
290 } else {
291 // Transition to given fail_to_state state if we are out
292 // of retries.
293 transition(fail_to_state, SERVER_IO_ERROR_EVT);
294 }
295}
296
297void
299 dns_update_request_ = request;
300}
301
302void
304 dns_update_request_.reset();
305}
306
307void
309 update_attempts_ = 0;
310}
311
312void
314 dns_update_status_ = status;
315}
316
317void
319 dns_update_response_ = response;
320}
321
322void
324 dns_update_response_.reset();
325}
326
327void
329 forward_change_completed_ = value;
330}
331
332void
334 reverse_change_completed_ = value;
335}
336
337void
339 update_attempts_ = value;
340}
341
344 if (!domain) {
346 "prepNewRequest - domain cannot be null");
347 }
348
349 try {
350 // Create a "blank" update request.
352 OUTBOUND));
353 // Set the query id
354 request->setId(dns::QidGenerator::getInstance().generateQid());
355 // Construct the Zone Section.
356 dns::Name zone_name(domain->getName());
357 request->setZone(zone_name, dns::RRClass::IN());
358 return (request);
359 } catch (const std::exception& ex) {
360 isc_throw(NameChangeTransactionError, "Cannot create new request :"
361 << ex.what());
362 }
363}
364
365void
367 if (!rrset) {
369 "addLeaseAddressRdata - RRset cannot cannot be null");
370 }
371
372 try {
373 // Manufacture an RData from the lease address then add it to the RR.
375 if (ncr_->isV4()) {
376 rdata.reset(new dns::rdata::in::A(ncr_->getIpAddress()));
377 } else {
378 rdata.reset(new dns::rdata::in::AAAA(ncr_->getIpAddress()));
379 }
380 rrset->addRdata(rdata);
381 } catch (const std::exception& ex) {
382 isc_throw(NameChangeTransactionError, "Cannot add address rdata: "
383 << ex.what());
384 }
385}
386
387void
389 if (!rrset) {
391 "addDhcidRdata - RRset cannot cannot be null");
392 }
393
394 try {
395 const std::vector<uint8_t>& ncr_dhcid = ncr_->getDhcid().getBytes();
396 util::InputBuffer buffer(ncr_dhcid.data(), ncr_dhcid.size());
397 dns::rdata::ConstRdataPtr rdata (new dns::rdata::in::
398 DHCID(buffer, ncr_dhcid.size()));
399 rrset->addRdata(rdata);
400 } catch (const std::exception& ex) {
401 isc_throw(NameChangeTransactionError, "Cannot add DCHID rdata: "
402 << ex.what());
403 }
404
405}
406
407void
409 if (!rrset) {
411 "addPtrRdata - RRset cannot cannot be null");
412 }
413
414 try {
415 dns::rdata::ConstRdataPtr rdata(new dns::rdata::generic::
416 PTR(getNcr()->getFqdn()));
417 rrset->addRdata(rdata);
418 } catch (const std::exception& ex) {
419 isc_throw(NameChangeTransactionError, "Cannot add PTR rdata: "
420 << ex.what());
421 }
422}
423
426 return (ncr_);
427}
428
429const TransactionKey&
431 return (ncr_->getDhcid());
432}
433
434std::string
436 return (ncr_->getRequestId());
437}
438
441 return (ncr_->getStatus());
442}
443
446 return (forward_domain_);
447}
448
451 return (reverse_domain_);
452}
453
454void
456 if (!domain) {
458 "initServerSelection called with an empty domain");
459 }
460
461 current_server_list_ = domain->getServers();
462 next_server_pos_ = 0;
463 current_server_.reset();
464}
465
466bool
468 for (;;) {
469 if ((current_server_list_) &&
470 (next_server_pos_ < current_server_list_->size())) {
471 current_server_ = (*current_server_list_)[next_server_pos_];
472 // Toss out any previous response.
473 dns_update_response_.reset();
474
475 // Set the tsig_key to that of the current server.
476 if (!selectTSIGKey()) {
477 ++next_server_pos_;
478 continue;
479 }
480
481 // @todo Protocol is set on DNSClient constructor. We need
482 // to propagate a configuration value downward, probably starting
483 // at global, then domain, finishing by server.
484 // Once that is supported we need to add it here.
485 dns_client_.reset(new DNSClient(dns_update_response_, this,
487 ++next_server_pos_;
488 return (true);
489 }
490
491 return (false);
492 }
493}
494
495bool
497 TSIGKeyInfoPtr tsig_key_info = current_server_->getTSIGKeyInfo();
498 if (tsig_key_info) {
499 tsig_key_ = tsig_key_info->getTSIGKey();
500 } else {
501 tsig_key_.reset();
502 }
503
504 // This hook point allows hooks libraries to overwrite the TSIG key.
505 if (HooksManager::calloutsPresent(Hooks.hooks_index_select_key_)) {
506 CalloutHandlePtr callout_handle = HooksManager::createCalloutHandle();
507
508 callout_handle->setArgument("current_server", current_server_);
509 callout_handle->setArgument("tsig_key", tsig_key_);
510
511 HooksManager::callCallouts(Hooks.hooks_index_select_key_,
512 *callout_handle);
513
514 // This server is skipped because the status is not NEXT_STEP_CONTINUE.
515 if (callout_handle->getStatus() != CalloutHandle::NEXT_STEP_CONTINUE) {
516 return (false);
517 }
518
519 // Reread the TSIG key.
520 callout_handle->getArgument("tsig_key", tsig_key_);
521 }
522
523 return (true);
524}
525
526
527const DNSClientPtr&
529 return (dns_client_);
530}
531
532const DnsServerInfoPtr&
534 return (current_server_);
535}
536
537void
539 return (ncr_->setStatus(status));
540}
541
544 return (dns_update_request_);
545}
546
549 return (dns_update_status_);
550}
551
554 return (dns_update_response_);
555}
556
557bool
559 return (forward_change_completed_);
560}
561
562bool
564 return (reverse_change_completed_);
565}
566
567size_t
569 return (update_attempts_);
570}
571
572const dns::RRType&
574 return (ncr_->isV4() ? dns::RRType::A() : dns::RRType::AAAA());
575}
576
577} // namespace isc::d2
578} // namespace isc
CtrlAgentHooks Hooks
virtual const char * what() const
Returns a C-style character string of the cause of the exception.
The D2UpdateMessage encapsulates a DNS Update message.
The DNSClient class handles communication with the DNS server.
Definition: dns_client.h:47
Status
A status code of the DNSClient.
Definition: dns_client.h:58
@ IO_STOPPED
IO was stopped.
Definition: dns_client.h:61
@ 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
Thrown if the transaction encounters a general error.
Definition: nc_trans.h:27
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
virtual void onModelFailure(const std::string &explanation)
Handler for fatal model execution errors.
Definition: nc_trans.cc:278
virtual void operator()(DNSClient::Status status)
Serves as the DNSClient IO completion event handler.
Definition: nc_trans.cc:120
static const int PROCESS_TRANS_FAILED_ST
State which processes an unsuccessful transaction conclusion.
Definition: nc_trans.h:105
static const unsigned int MAX_UPDATE_TRIES_PER_SERVER
Maximum times to attempt a single update on a given server.
Definition: nc_trans.h:154
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
const DNSClientPtr & getDNSClient() const
Fetches the DNSClient instance.
Definition: nc_trans.cc:528
virtual void verifyStates()
Validates the contents of the set of states.
Definition: nc_trans.cc:265
void startTransaction()
Begins execution of the transaction.
Definition: nc_trans.cc:110
virtual D2UpdateMessagePtr prepNewRequest(DdnsDomainPtr domain)
Creates a new DNS update request based on the given domain.
Definition: nc_trans.cc:343
NameChangeTransaction(asiolink::IOServicePtr &io_service, dhcp_ddns::NameChangeRequestPtr &ncr, DdnsDomainPtr &forward_domain, DdnsDomainPtr &reverse_domain, D2CfgMgrPtr &cfg_mgr)
Constructor.
Definition: nc_trans.cc:68
static const int UPDATE_FAILED_EVT
Issued when the attempted update fails to complete.
Definition: nc_trans.h:141
const D2UpdateMessagePtr & getDnsUpdateRequest() const
Fetches the current DNS update request packet.
Definition: nc_trans.cc:543
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 NCT_DERIVED_STATE_MIN
Value at which custom states in a derived class should begin.
Definition: nc_trans.h:108
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
const TransactionKey & getTransactionKey() const
Fetches the unique key that identifies this transaction.
Definition: nc_trans.cc:430
void setUpdateAttempts(const size_t value)
Sets the update attempt count to the given value.
Definition: nc_trans.cc:338
void addLeaseAddressRdata(dns::RRsetPtr &rrset)
Adds an RData for the lease address to the given RRset.
Definition: nc_trans.cc:366
bool getForwardChangeCompleted() const
Returns whether the forward change has completed or not.
Definition: nc_trans.cc:558
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
void setDnsUpdateResponse(D2UpdateMessagePtr &response)
Sets the update response packet to the given packet.
Definition: nc_trans.cc:318
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
bool selectTSIGKey()
Selects the TSIG key.
Definition: nc_trans.cc:496
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 setDnsUpdateStatus(const DNSClient::Status &status)
Sets the update status to the given status value.
Definition: nc_trans.cc:313
void setDnsUpdateRequest(D2UpdateMessagePtr &request)
Sets the update request packet to the given packet.
Definition: nc_trans.cc:298
bool getReverseChangeCompleted() const
Returns whether the reverse change has completed or not.
Definition: nc_trans.cc:563
static const int NO_MORE_SERVERS_EVT
Issued when there are no more servers from which to select.
Definition: nc_trans.h:125
dhcp_ddns::NameChangeStatus getNcrStatus() const
Fetches the NameChangeRequest status of the transaction.
Definition: nc_trans.cc:440
static const int NCT_DERIVED_EVENT_MIN
Value at which custom events in a derived class should begin.
Definition: nc_trans.h:144
virtual void defineEvents()
Adds events defined by NameChangeTransaction to the event set.
Definition: nc_trans.cc:227
void clearDnsUpdateResponse()
Destroys the current update response packet.
Definition: nc_trans.cc:323
std::string responseString() const
Returns a string version of the current response status and rcode.
Definition: nc_trans.cc:136
void setReverseChangeCompleted(const bool value)
Sets the reverse change completion flag to the given value.
Definition: nc_trans.cc:333
size_t getUpdateAttempts() const
Fetches the update attempt count for the current update.
Definition: nc_trans.cc:568
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
virtual ~NameChangeTransaction()
Destructor.
Definition: nc_trans.cc:106
Container class for handling the DHCID value within a NameChangeRequest.
Definition: ncr_msg.h:86
The Name class encapsulates DNS names.
Definition: name.h:223
static QidGenerator & getInstance()
Returns the singleton instance of the QidGenerator.
Definition: qid_gen.cc:25
static const RRClass & IN()
Definition: rrclass.h:319
The RRType class encapsulates DNS resource record types.
Definition: rrtype.h:106
static const RRType & AAAA()
Definition: rrtype.h:497
static const RRType & A()
Definition: rrtype.h:341
The InputBuffer class is a buffer abstraction for manipulating read-only data.
Definition: buffer.h:81
const EventPtr & getEvent(unsigned int value)
Fetches the event referred to by value.
Definition: state_model.cc:186
virtual void runModel(unsigned int event)
Processes events through the state model.
Definition: state_model.cc:112
virtual void defineEvents()
Populates the set of events.
Definition: state_model.cc:229
void postNextEvent(unsigned int event)
Sets the next event to the given event value.
Definition: state_model.cc:320
virtual void verifyStates()
Validates the contents of the set of states.
Definition: state_model.cc:253
unsigned int getNextEvent() const
Fetches the model's next event.
Definition: state_model.cc:373
void defineEvent(unsigned int value, const std::string &label)
Adds an event value and associated label to the set of events.
Definition: state_model.cc:170
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
virtual void verifyEvents()
Validates the contents of the set of events.
Definition: state_model.cc:237
static const int NOP_EVT
Signifies that no event has occurred.
Definition: state_model.h:292
std::string getEventLabel(const int event) const
Fetches the label associated with an event value.
Definition: state_model.cc:432
void startModel(const int start_state)
Begins execution of the model.
Definition: state_model.cc:100
virtual void defineStates()
Populates the set of states.
Definition: state_model.cc:245
const StatePtr getStateInternal(unsigned int value)
Fetches the state referred to by value.
Definition: state_model.cc:219
unsigned int getCurrState() const
Fetches the model's current state.
Definition: state_model.cc:355
#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_DEBUG(LOGGER, LEVEL, MESSAGE)
Macro to conveniently test debug output and log it.
Definition: macros.h:14
const isc::log::MessageID DHCP_DDNS_STARTING_TRANSACTION
Definition: d2_messages.h:82
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
boost::shared_ptr< D2CfgMgr > D2CfgMgrPtr
Defines a shared pointer to D2CfgMgr.
Definition: d2_cfg_mgr.h:334
boost::shared_ptr< DnsServerInfo > DnsServerInfoPtr
Defines a pointer for DnsServerInfo instances.
Definition: d2_config.h:542
isc::log::Logger d2_to_dns_logger("d2-to-dns")
Definition: d2_log.h:20
const isc::log::MessageID DHCP_DDNS_TRANS_SEND_ERROR
Definition: d2_messages.h:84
boost::shared_ptr< TSIGKeyInfo > TSIGKeyInfoPtr
Defines a pointer for TSIGKeyInfo instances.
Definition: d2_config.h:404
boost::shared_ptr< DNSClient > DNSClientPtr
Definition: dns_client.h:19
const isc::log::MessageID DHCP_DDNS_STATE_MODEL_UNEXPECTED_ERROR
Definition: d2_messages.h:83
boost::shared_ptr< D2Params > D2ParamsPtr
Defines a pointer for D2Params instances.
Definition: d2_config.h:257
const isc::log::MessageID DHCP_DDNS_UPDATE_RESPONSE_RECEIVED
Definition: d2_messages.h:86
const isc::log::MessageID DHCP_DDNS_UPDATE_REQUEST_SENT
Definition: d2_messages.h:85
NameChangeStatus
Defines the runtime processing status values for requests.
Definition: ncr_msg.h:52
boost::shared_ptr< NameChangeRequest > NameChangeRequestPtr
Defines a pointer to a NameChangeRequest.
Definition: ncr_msg.h:212
boost::shared_ptr< const Rdata > ConstRdataPtr
Definition: rdata.h:72
boost::shared_ptr< AbstractRRset > RRsetPtr
A pointer-like type pointing to an RRset object.
Definition: rrset.h:47
boost::shared_ptr< CalloutHandle > CalloutHandlePtr
A shared pointer to a CalloutHandle object.
const int DBGLVL_TRACE_DETAIL
Trace detailed operations.
Definition: log_dbglevels.h:75
Definition: edns.h:19
Defines the logger used by the top-level component of kea-lfc.
This file defines the class NameChangeTransaction.