8#include <kea_version.h>
65#include <boost/algorithm/string.hpp>
66#include <boost/foreach.hpp>
67#include <boost/pointer_cast.hpp>
68#include <boost/shared_ptr.hpp>
85namespace ph = std::placeholders;
91 int hook_index_buffer4_receive_;
92 int hook_index_pkt4_receive_;
93 int hook_index_subnet4_select_;
94 int hook_index_leases4_committed_;
95 int hook_index_lease4_release_;
96 int hook_index_pkt4_send_;
97 int hook_index_buffer4_send_;
98 int hook_index_lease4_decline_;
99 int hook_index_host4_identifier_;
103 hook_index_buffer4_receive_ = HooksManager::registerHook(
"buffer4_receive");
104 hook_index_pkt4_receive_ = HooksManager::registerHook(
"pkt4_receive");
105 hook_index_subnet4_select_ = HooksManager::registerHook(
"subnet4_select");
106 hook_index_leases4_committed_ = HooksManager::registerHook(
"leases4_committed");
107 hook_index_lease4_release_ = HooksManager::registerHook(
"lease4_release");
108 hook_index_pkt4_send_ = HooksManager::registerHook(
"pkt4_send");
109 hook_index_buffer4_send_ = HooksManager::registerHook(
"buffer4_send");
110 hook_index_lease4_decline_ = HooksManager::registerHook(
"lease4_decline");
111 hook_index_host4_identifier_ = HooksManager::registerHook(
"host4_identifier");
117std::set<std::string> dhcp4_statistics = {
119 "pkt4-discover-received",
120 "pkt4-offer-received",
121 "pkt4-request-received",
124 "pkt4-release-received",
125 "pkt4-decline-received",
126 "pkt4-inform-received",
127 "pkt4-unknown-received",
151 : alloc_engine_(alloc_engine), query_(query), resp_(),
154 if (!alloc_engine_) {
156 " when creating an instance of the Dhcpv4Exchange");
161 " creating an instance of the Dhcpv4Exchange");
166 context_->subnet_ = subnet;
168 context_->hwaddr_ = query->getHWAddr();
170 context_->query_ = query;
179 context_->clientid_.reset(
new ClientId(opt_clientid->getData()));
183 if (subnet->getReservationsInSubnet() ||
184 subnet->getReservationsGlobal()) {
187 setHostIdentifiers();
190 alloc_engine->findReservation(*context_);
193 subnet->getSharedNetwork(sn);
203 auto global_host = context_->globalHost();
204 auto current_host = context_->currentHost();
205 if ((global_host && !global_host->getClientClasses4().empty()) ||
206 (!sn && current_host && !current_host->getClientClasses4().empty())) {
224 for (
auto def : *defs_ptr) {
228 if (def->getMatchExpr()) {
229 context_->query_->classes_.erase(def->getName());
233 evaluateClasses(context_->query_,
false);
237 if (!context_->hosts_.empty()) {
238 query->addClass(
"KNOWN");
240 .arg(query->getLabel())
243 query->addClass(
"UNKNOWN");
245 .arg(query->getLabel())
250 evaluateClasses(query,
true);
253 if (!classes.
empty()) {
255 .arg(query_->getLabel())
260 if (query_->inClass(
"DROP")) {
262 .arg(query_->toText());
264 static_cast<int64_t
>(1));
271 uint8_t resp_type = 0;
285 resp_.reset(
new Pkt4(resp_type,
getQuery()->getTransid()));
287 copyDefaultOptions();
301 const Pkt6Ptr& query6 = query->getPkt6();
305 if (!query6->relay_info_.empty()) {
306 resp6->copyRelayInfo(query6);
309 resp6->setIface(query6->getIface());
310 resp6->setIndex(query6->getIndex());
311 resp6->setRemoteAddr(query6->getRemoteAddr());
312 resp6->setRemotePort(query6->getRemotePort());
313 resp_.reset(
new Pkt4o6(resp_, resp6));
317Dhcpv4Exchange::copyDefaultFields() {
318 resp_->setIface(query_->getIface());
319 resp_->setIndex(query_->getIndex());
326 resp_->setCiaddr(query_->getCiaddr());
330 resp_->setHops(query_->getHops());
333 resp_->setHWAddr(query_->getHWAddr());
336 resp_->setGiaddr(query_->getGiaddr());
345 HWAddrPtr src_hw_addr = query_->getLocalHWAddr();
347 resp_->setLocalHWAddr(src_hw_addr);
349 HWAddrPtr dst_hw_addr = query_->getRemoteHWAddr();
351 resp_->setRemoteHWAddr(dst_hw_addr);
355 resp_->setFlags(query_->getFlags());
359Dhcpv4Exchange::copyDefaultOptions() {
364 if (client_id && echo) {
365 resp_->addOption(client_id);
372 resp_->addOption(rai);
385 resp_->addOption(subnet_sel);
390Dhcpv4Exchange::setHostIdentifiers() {
397 cfg->getIdentifierTypes()) {
400 if (context_->hwaddr_ && !context_->hwaddr_->hwaddr_.empty()) {
401 context_->addHostIdentifier(id_type, context_->hwaddr_->hwaddr_);
406 if (context_->clientid_) {
407 const std::vector<uint8_t>& vec = context_->clientid_->getDuid();
412 if ((vec[0] == CLIENT_ID_OPTION_TYPE_DUID) && (vec.size() > 5)) {
414 context_->addHostIdentifier(id_type,
415 std::vector<uint8_t>(vec.begin() + 5,
426 OptionPtr circuit_id_opt = rai->getOption(RAI_OPTION_AGENT_CIRCUIT_ID);
427 if (circuit_id_opt) {
428 const OptionBuffer& circuit_id_vec = circuit_id_opt->getData();
429 if (!circuit_id_vec.empty()) {
430 context_->addHostIdentifier(id_type, circuit_id_vec);
438 if (context_->clientid_) {
439 const std::vector<uint8_t>& vec = context_->clientid_->getDuid();
441 context_->addHostIdentifier(id_type, vec);
447 if (!HooksManager::calloutsPresent(
Hooks.hook_index_host4_identifier_)) {
454 std::vector<uint8_t> id;
463 callout_handle->setArgument(
"query4", context_->query_);
464 callout_handle->setArgument(
"id_type", type);
465 callout_handle->setArgument(
"id_value",
id);
468 HooksManager::callCallouts(
Hooks.hook_index_host4_identifier_,
471 callout_handle->getArgument(
"id_type", type);
472 callout_handle->getArgument(
"id_value",
id);
474 if ((callout_handle->getStatus() == CalloutHandle::NEXT_STEP_CONTINUE) &&
480 context_->addHostIdentifier(type,
id);
492 if (context->currentHost() && context->query_) {
493 const ClientClasses& classes = context->currentHost()->getClientClasses4();
495 cclass != classes.
cend(); ++cclass) {
496 context->query_->addClass(*cclass);
503 if (context_->subnet_) {
505 context_->subnet_->getSharedNetwork(shared_network);
506 if (shared_network) {
508 if (host && (host->getIPv4SubnetID() != SUBNET_ID_GLOBAL)) {
520 if (!host->getNextServer().isV4Zero()) {
521 resp_->setSiaddr(host->getNextServer());
524 std::string sname = host->getServerHostname();
525 if (!sname.empty()) {
526 resp_->setSname(
reinterpret_cast<const uint8_t*
>(sname.c_str()),
530 std::string bootfile = host->getBootFileName();
531 if (!bootfile.empty()) {
532 resp_->setFile(
reinterpret_cast<const uint8_t*
>(bootfile.c_str()),
540 boost::shared_ptr<OptionString> vendor_class =
552 pkt->addClass(
"ALL");
558 evaluateClasses(pkt,
false);
561void Dhcpv4Exchange::evaluateClasses(
const Pkt4Ptr& pkt,
bool depend_on_known) {
566 for (ClientClassDefList::const_iterator it = defs_ptr->cbegin();
567 it != defs_ptr->cend(); ++it) {
575 if ((*it)->getRequired()) {
579 if ((*it)->getDependOnKnown() != depend_on_known) {
588 .arg((*it)->getName())
591 pkt->addClass((*it)->getName());
594 .arg((*it)->getName())
599 .arg((*it)->getName())
603 .arg((*it)->getName())
604 .arg(
"get exception?");
612 const bool use_bcast,
const bool direct_response_desired)
613 : io_service_(new
IOService()), server_port_(server_port),
614 client_port_(client_port), shutdown_(true),
615 alloc_engine_(), use_bcast_(use_bcast),
618 test_send_responses_to_source_(false) {
620 const char* env = std::getenv(
"KEA_TEST_SEND_RESPONSES_TO_SOURCE");
623 test_send_responses_to_source_ =
true;
652 }
catch (
const std::exception &e) {
667 for (
auto it = dhcp4_statistics.begin(); it != dhcp4_statistics.end(); ++it) {
669 stats_mgr.
setValue((*it),
static_cast<int64_t
>(0));
679 }
catch (
const std::exception& ex) {
686 }
catch (
const std::exception& ex) {
698 HooksManager::prepareUnloadLibraries();
699 if (!HooksManager::unloadLibraries()) {
700 auto names = HooksManager::getLibraryNames();
702 if (!names.empty()) {
704 for (
size_t i = 1; i < names.size(); ++i) {
705 msg += std::string(
", ") + names[i];
720 bool sanity_only)
const {
723 if (query->isDhcp4o6()) {
732 subnet = cfgmgr.
getCurrentCfg()->getCfgSubnets4()->selectSubnet(selector);
737 HooksManager::calloutsPresent(
Hooks.hook_index_subnet4_select_)) {
750 callout_handle->setArgument(
"query4", query);
751 callout_handle->setArgument(
"subnet4", subnet);
752 callout_handle->setArgument(
"subnet4collection",
754 getCfgSubnets4()->getAll());
757 HooksManager::callCallouts(
Hooks.hook_index_subnet4_select_,
763 if (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_SKIP) {
766 .arg(query->getLabel());
772 if (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_DROP) {
775 .arg(query->getLabel());
781 callout_handle->getArgument(
"subnet4", subnet);
787 .arg(query->getLabel())
788 .arg(subnet->getID());
792 .arg(query->getLabel())
793 .arg(subnet->toText());
798 .arg(query->getLabel());
806 bool sanity_only)
const {
811 selector.
ciaddr_ = query->getCiaddr();
812 selector.
giaddr_ = query->getGiaddr();
823 Pkt4o6Ptr query4o6 = boost::dynamic_pointer_cast<Pkt4o6>(query);
827 const Pkt6Ptr& query6 = query4o6->getPkt6();
830 if (query6 && !query6->relay_info_.empty()) {
846 OptionCustomPtr oc = boost::dynamic_pointer_cast<OptionCustom>(sbnsel);
853 subnet = cfgmgr.
getCurrentCfg()->getCfgSubnets4()->selectSubnet4o6(selector);
858 HooksManager::calloutsPresent(
Hooks.hook_index_subnet4_select_)) {
868 callout_handle->setArgument(
"query4", query);
869 callout_handle->setArgument(
"subnet4", subnet);
870 callout_handle->setArgument(
"subnet4collection",
872 getCfgSubnets4()->getAll());
875 HooksManager::callCallouts(
Hooks.hook_index_subnet4_select_,
881 if (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_SKIP) {
884 .arg(query->getLabel());
890 if (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_DROP) {
893 .arg(query->getLabel());
899 callout_handle->getArgument(
"subnet4", subnet);
905 .arg(query->getLabel())
906 .arg(subnet->getID());
910 .arg(query->getLabel())
911 .arg(subnet->toText());
916 .arg(query->getLabel());
940 while (__AFL_LOOP(fuzzer.maxLoopCount())) {
950 }
catch (
const std::exception& e) {
967 MultiThreadingMgr::instance().apply(
false, 0, 0);
981 uint32_t timeout = 1;
992 .arg(query->getRemoteAddr().toText())
993 .arg(query->getRemotePort())
994 .arg(query->getLocalAddr().toText())
995 .arg(query->getLocalPort())
996 .arg(query->getIface());
1012 }
catch (
const std::exception& e) {
1027 .arg(query->getLabel());
1030 if (MultiThreadingMgr::instance().getMode()) {
1031 typedef function<void()> CallBack;
1032 boost::shared_ptr<CallBack> call_back =
1035 if (!MultiThreadingMgr::instance().getThreadPool().add(call_back)) {
1048 }
catch (
const std::exception& e) {
1075 static_cast<int64_t
>(1));
1077 bool skip_unpack =
false;
1081 if (HooksManager::calloutsPresent(
Hooks.hook_index_buffer4_receive_)) {
1094 callout_handle->setArgument(
"query4", query);
1097 HooksManager::callCallouts(
Hooks.hook_index_buffer4_receive_,
1103 if (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_DROP) {
1106 .arg(query->getRemoteAddr().toText())
1107 .arg(query->getLocalAddr().toText())
1108 .arg(query->getIface());
1116 if (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_SKIP) {
1119 .arg(query->getRemoteAddr().toText())
1120 .arg(query->getLocalAddr().toText())
1121 .arg(query->getIface());
1125 callout_handle->getArgument(
"query4", query);
1133 .arg(query->getRemoteAddr().toText())
1134 .arg(query->getLocalAddr().toText())
1135 .arg(query->getIface());
1143 }
catch (
const std::exception& e) {
1146 .arg(query->getRemoteAddr().toText())
1147 .arg(query->getLocalAddr().toText())
1148 .arg(query->getIface())
1153 static_cast<int64_t
>(1));
1155 static_cast<int64_t
>(1));
1176 static_cast<int64_t
>(1));
1182 int type = query->getType();
1184 .arg(query->getLabel())
1185 .arg(query->getName())
1187 .arg(query->getRemoteAddr())
1188 .arg(query->getLocalAddr())
1189 .arg(query->getIface());
1191 .arg(query->getLabel())
1192 .arg(query->toText());
1195 if (HooksManager::calloutsPresent(
Hooks.hook_index_pkt4_receive_)) {
1208 callout_handle->setArgument(
"query4", query);
1211 HooksManager::callCallouts(
Hooks.hook_index_pkt4_receive_,
1217 if ((callout_handle->getStatus() == CalloutHandle::NEXT_STEP_SKIP) ||
1218 (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_DROP)) {
1221 .arg(query->getLabel());
1225 callout_handle->getArgument(
"query4", query);
1229 if (query->inClass(
"DROP")) {
1231 .arg(query->toText());
1233 static_cast<int64_t
>(1));
1242 bool allow_packet_park) {
1251 }
catch (
const std::exception& e) {
1261 bool allow_packet_park) {
1266 if (MultiThreadingMgr::instance().getMode() &&
1273 this, query, rsp, allow_packet_park));
1274 if (!client_handler.
tryLock(query, cont)) {
1282 switch (query->getType()) {
1312 }
catch (
const std::exception& e) {
1322 .arg(query->getLabel())
1327 static_cast<int64_t
>(1));
1331 if (ctx && HooksManager::calloutsPresent(
Hooks.hook_index_leases4_committed_)) {
1341 callout_handle->setArgument(
"query4", query);
1345 if (ctx->new_lease_ && (ctx->new_lease_->reuseable_valid_lft_ == 0)) {
1346 new_leases->push_back(ctx->new_lease_);
1348 callout_handle->setArgument(
"leases4", new_leases);
1351 if (ctx->old_lease_) {
1352 if ((!ctx->new_lease_) || (ctx->new_lease_->addr_ != ctx->old_lease_->addr_)) {
1353 deleted_leases->push_back(ctx->old_lease_);
1356 callout_handle->setArgument(
"deleted_leases4", deleted_leases);
1358 if (allow_packet_park) {
1360 uint32_t parked_packet_limit = 0;
1362 getCurrentCfg()->getConfiguredGlobal(
"parked-packet-limit");
1364 parked_packet_limit = ppl->intValue();
1367 if (parked_packet_limit) {
1368 const auto& parking_lot = ServerHooks::getServerHooks().
1369 getParkingLotPtr(
"leases4_committed");
1371 if (parking_lot && (parking_lot->size() >= parked_packet_limit)) {
1375 .arg(parked_packet_limit)
1376 .arg(query->getLabel());
1378 static_cast<int64_t
>(1));
1388 HooksManager::park(
"leases4_committed", query,
1389 [
this, callout_handle, query, rsp]()
mutable {
1390 if (MultiThreadingMgr::instance().getMode()) {
1391 typedef function<void()> CallBack;
1392 boost::shared_ptr<CallBack> call_back =
1394 this, callout_handle, query, rsp));
1395 MultiThreadingMgr::instance().getThreadPool().add(call_back);
1405 HooksManager::callCallouts(
Hooks.hook_index_leases4_committed_,
1409 if (allow_packet_park) {
1410 HooksManager::drop(
"leases4_committed", query);
1416 if ((callout_handle->getStatus() == CalloutHandle::NEXT_STEP_PARK)
1417 && allow_packet_park) {
1419 .arg(query->getLabel());
1427 HooksManager::drop(
"leases4_committed", query);
1428 if (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_DROP) {
1430 .arg(query->getLabel());
1448 }
catch (
const std::exception& e) {
1464 bool skip_pack =
false;
1467 if (HooksManager::calloutsPresent(
Hooks.hook_index_pkt4_send_)) {
1480 callout_handle->setArgument(
"query4", query);
1483 callout_handle->setArgument(
"response4", rsp);
1486 HooksManager::callCallouts(
Hooks.hook_index_pkt4_send_,
1494 if (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_SKIP) {
1496 .arg(query->getLabel());
1501 if (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_DROP) {
1503 .arg(rsp->getLabel());
1512 .arg(rsp->getLabel());
1514 }
catch (
const std::exception& e) {
1516 .arg(rsp->getLabel())
1534 if (HooksManager::calloutsPresent(
Hooks.hook_index_buffer4_send_)) {
1546 callout_handle->setArgument(
"response4", rsp);
1549 HooksManager::callCallouts(
Hooks.hook_index_buffer4_send_,
1555 if ((callout_handle->getStatus() == CalloutHandle::NEXT_STEP_SKIP) ||
1556 (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_DROP)) {
1559 .arg(rsp->getLabel());
1563 callout_handle->getArgument(
"response4", rsp);
1567 .arg(rsp->getLabel())
1568 .arg(rsp->getName())
1569 .arg(
static_cast<int>(rsp->getType()))
1570 .arg(rsp->getLocalAddr().isV4Zero() ?
"*" : rsp->getLocalAddr().toText())
1571 .arg(rsp->getLocalPort())
1572 .arg(rsp->getRemoteAddr())
1573 .arg(rsp->getRemotePort())
1574 .arg(rsp->getIface().empty() ?
"to be determined from routing" :
1579 .arg(rsp->getLabel())
1580 .arg(rsp->getName())
1581 .arg(
static_cast<int>(rsp->getType()))
1582 .arg(rsp->toText());
1588 }
catch (
const std::exception& e) {
1590 .arg(rsp->getLabel())
1600 boost::shared_ptr<Option4AddrLst> generated =
1601 boost::dynamic_pointer_cast<Option4AddrLst>(srvid);
1607 if (addrs.size() != 1) {
1609 <<
"Expected to contain a single IPv4 address.");
1612 return (addrs[0].toText());
1630 if (local_addr.
isV4Bcast() || query->isDhcp4o6()) {
1653 if (host && !host->getCfgOption4()->empty()) {
1654 co_list.push_back(host->getCfgOption4());
1661 addr = resp->getYiaddr();
1665 if (pool && !pool->getCfgOption()->empty()) {
1666 co_list.push_back(pool->getCfgOption());
1671 if (!subnet->getCfgOption()->empty()) {
1672 co_list.push_back(subnet->getCfgOption());
1677 subnet->getSharedNetwork(network);
1678 if (network && !network->getCfgOption()->empty()) {
1679 co_list.push_back(network->getCfgOption());
1685 cclass != classes.
cend(); ++cclass) {
1688 getClientClassDictionary()->findClass(*cclass);
1700 if (ccdef->getCfgOption()->empty()) {
1705 co_list.push_back(ccdef->getCfgOption());
1729 if (co_list.empty()) {
1735 std::vector<uint8_t> requested_opts;
1743 requested_opts = option_prl->
getValues();
1746 for (CfgOptionList::const_iterator copts = co_list.begin();
1747 copts != co_list.end(); ++copts) {
1755 for (OptionContainerPersistIndex::const_iterator desc = range.first;
1756 desc != range.second; ++desc) {
1758 if (desc->option_) {
1759 uint8_t code =
static_cast<uint8_t
>(desc->option_->getType());
1760 requested_opts.push_back(code);
1767 for (std::vector<uint8_t>::const_iterator opt = requested_opts.begin();
1768 opt != requested_opts.end(); ++opt) {
1770 if (!resp->getOption(*opt)) {
1772 for (CfgOptionList::const_iterator copts = co_list.begin();
1773 copts != co_list.end(); ++copts) {
1777 resp->addOption(desc.
option_);
1800 if (co_list.empty()) {
1804 uint32_t vendor_id = 0;
1809 boost::shared_ptr<OptionVendor> vendor_req = boost::dynamic_pointer_cast<
1819 boost::shared_ptr<OptionVendor> vendor_rsp = boost::dynamic_pointer_cast<
1825 if (!vendor_req && !vendor_rsp) {
1832 std::vector<uint8_t> requested_opts;
1845 oro = boost::dynamic_pointer_cast<OptionUint8Array>(oro_generic);
1848 requested_opts = oro->getValues();
1854 for (CfgOptionList::const_iterator copts = co_list.begin();
1855 copts != co_list.end(); ++copts) {
1864 for (OptionContainerPersistIndex::const_iterator desc = range.first;
1865 desc != range.second; ++desc) {
1867 if (desc->option_) {
1868 uint8_t code =
static_cast<uint8_t
>(desc->option_->getType());
1869 requested_opts.push_back(code);
1875 if (requested_opts.empty()) {
1887 for (std::vector<uint8_t>::const_iterator code = requested_opts.begin();
1888 code != requested_opts.end(); ++code) {
1889 if (!vendor_rsp->getOption(*code)) {
1890 for (CfgOptionList::const_iterator copts = co_list.begin();
1891 copts != co_list.end(); ++copts) {
1894 vendor_rsp->addOption(desc.
option_);
1913 static const uint16_t required_options[] = {
1919 static size_t required_options_size =
1920 sizeof(required_options) /
sizeof(required_options[0]);
1930 if (co_list.empty()) {
1938 for (
int i = 0; i < required_options_size; ++i) {
1939 OptionPtr opt = resp->getOption(required_options[i]);
1942 for (CfgOptionList::const_iterator copts = co_list.begin();
1943 copts != co_list.end(); ++copts) {
1945 required_options[i]);
1947 resp->addOption(desc.
option_);
1967 processClientFqdnOption(ex);
1973 processHostnameOption(ex);
1979 std::string hostname;
1980 bool fqdn_fwd =
false;
1981 bool fqdn_rev =
false;
1983 fqdn = boost::dynamic_pointer_cast<Option4ClientFqdn>(resp->getOption(
DHO_FQDN));
1985 hostname = fqdn->getDomainName();
1988 opt_hostname = boost::dynamic_pointer_cast<OptionString>
1992 hostname = opt_hostname->getValue();
1997 if (hostname ==
".") {
2003 if (ex.
getContext()->getDdnsParams()->getEnableUpdates()) {
2012 ctx->fwd_dns_update_ = fqdn_fwd;
2013 ctx->rev_dns_update_ = fqdn_rev;
2014 ctx->hostname_ = hostname;
2040 .arg(fqdn->toText());
2056 !ex.
getContext()->currentHost()->getHostname().empty()) {
2083 .arg(fqdn_resp->
toText());
2093 OptionStringPtr opt_hostname = boost::dynamic_pointer_cast<OptionString>
2099 .arg(opt_hostname->getValue());
2107 if (ctx->currentHost() && !ctx->currentHost()->getHostname().empty()) {
2109 std::string hostname = d2_mgr.
qualifyName(ctx->currentHost()->getHostname(),
2112 boost::algorithm::to_lower(hostname);
2130 ex.
getContext()->getDdnsParams()->getReplaceClientNameMode();
2133 if (!opt_hostname) {
2153 .arg(opt_hostname->getValue());
2156 unsigned int label_count;
2162 }
catch (
const std::exception& exc) {
2173 if (label_count == 0) {
2191 || label_count < 2) {
2205 ex.
getContext()->getDdnsParams()->getHostnameSanitizer();
2208 hostname = sanitizer->scrub(hostname);
2212 boost::algorithm::to_lower(hostname);
2214 if (label_count == 2) {
2222 opt_hostname_resp.reset(
2233 .arg(opt_hostname_resp->getValue());
2243 "NULL lease specified when creating NameChangeRequest");
2251 if (!old_lease || ddns_params.
getUpdateOnRenew() || !lease->hasIdenticalFqdn(*old_lease)) {
2282 .arg(query->getLabel())
2283 .arg(query->getRemoteAddr().toText())
2284 .arg(query->getName());
2300 if (opt_requested_address) {
2301 hint = opt_requested_address->readAddress();
2303 }
else if (!query->getCiaddr().isV4Zero()) {
2304 hint = query->getCiaddr();
2316 bool fake_allocation = (query->getType() ==
DHCPDISCOVER);
2325 if (!fake_allocation && !opt_serverid && opt_requested_address) {
2328 .arg(query->getLabel())
2329 .arg(hint.toText());
2346 if (!leases_client_id.empty()) {
2352 for (
auto l = leases_client_id.begin(); l != leases_client_id.end(); ++l) {
2353 if ((*l)->subnet_id_ == s->getID()) {
2363 s = s->getNextSubnet(original_subnet, query->getClasses());
2371 if (!lease && hwaddr) {
2375 if (!leases_hwaddr.empty()) {
2380 for (
auto l = leases_hwaddr.begin(); l != leases_hwaddr.end(); ++l) {
2381 if ((*l)->subnet_id_ == s->getID()) {
2391 s = s->getNextSubnet(original_subnet, query->getClasses());
2400 bool authoritative = original_subnet->getAuthoritative();
2401 bool known_client = lease && lease->belongsToClient(hwaddr, client_id);
2402 if (!authoritative && !known_client) {
2405 .arg(query->getLabel())
2406 .arg(hint.toText());
2414 if ((known_client && (lease->addr_ != hint)) ||
2415 (!known_client && authoritative)) {
2418 .arg(query->getLabel())
2419 .arg(hint.toText());
2430 ctx->requested_address_ = hint;
2431 ctx->fake_allocation_ = fake_allocation;
2432 ctx->callout_handle_ = callout_handle;
2448 bool client_name_changed =
false;
2452 if (subnet->getID() != ctx->subnet_->getID()) {
2454 subnet->getSharedNetwork(network);
2456 .arg(query->getLabel())
2457 .arg(subnet->toText())
2458 .arg(ctx->subnet_->toText())
2459 .arg(network ? network->getName() :
"<no network?>");
2461 subnet = ctx->subnet_;
2476 ctx->hostname_ =
"";
2477 ctx->fwd_dns_update_ =
false;
2478 ctx->rev_dns_update_ =
false;
2485 if ((lease->hostname_ != ctx->hostname_) ||
2486 (lease->fqdn_fwd_ != ctx->fwd_dns_update_) ||
2487 (lease->fqdn_rev_ != ctx->rev_dns_update_)) {
2488 lease->hostname_ = ctx->hostname_;
2489 lease->fqdn_fwd_ = ctx->fwd_dns_update_;
2490 lease->fqdn_rev_ = ctx->rev_dns_update_;
2491 client_name_changed =
true;
2499 if (fake_allocation) {
2501 .arg(query->getLabel())
2502 .arg(lease->addr_.toText());
2505 .arg(query->getLabel())
2506 .arg(lease->addr_.toText())
2514 if (!ctx->subnet_->getMatchClientId()) {
2516 .arg(ctx->query_->getLabel())
2517 .arg(ctx->subnet_->getID());
2520 resp->setYiaddr(lease->addr_);
2526 if (!fake_allocation) {
2531 resp->setCiaddr(query->getCiaddr());
2540 if (lease->reuseable_valid_lft_ > 0) {
2541 lease->valid_lft_ = lease->reuseable_valid_lft_;
2543 .arg(query->getLabel())
2544 .arg(lease->addr_.toText())
2550 lease->valid_lft_));
2551 resp->addOption(opt);
2554 resp->addOption(getNetmaskOption(subnet));
2560 if (!fake_allocation) {
2563 .arg(query->getLabel());
2568 .arg(query->getLabel())
2578 .arg(query->getLabel())
2579 .arg(query->getCiaddr().toText())
2580 .arg(opt_requested_address ?
2581 opt_requested_address->readAddress().toText() :
"(no address)");
2593 const Pkt4Ptr& query,
const Pkt4Ptr& resp,
bool client_name_changed) {
2602 opt_hostname = boost::dynamic_pointer_cast<OptionString>(resp->getOption(
DHO_HOST_NAME));
2603 if (!opt_hostname) {
2610 if (lease->hostname_.empty()) {
2617 .
generateFqdn(lease->addr_, *(ctx->getDdnsParams()),
static_cast<bool>(fqdn));
2620 .arg(query->getLabel())
2621 .arg(lease->hostname_);
2623 client_name_changed =
true;
2626 if (client_name_changed) {
2631 if (!ctx->fake_allocation_) {
2633 lease->reuseable_valid_lft_ = 0;
2646 opt_hostname->setValue(lease->hostname_);
2650 .arg(query->getLabel())
2651 .arg(lease->hostname_)
2661 uint32_t t2_time = 0;
2663 if (!subnet->getT2().unspecified()) {
2664 t2_time = subnet->getT2();
2665 }
else if (subnet->getCalculateTeeTimes()) {
2667 t2_time =
static_cast<uint32_t
>(round(subnet->getT2Percent() * (lease->valid_lft_)));
2672 uint32_t timer_ceiling = lease->valid_lft_;
2673 if (t2_time > 0 && t2_time < timer_ceiling) {
2675 resp->addOption(t2);
2677 timer_ceiling = t2_time;
2680 uint32_t t1_time = 0;
2682 if (!subnet->getT1().unspecified()) {
2683 t1_time = subnet->getT1();
2684 }
else if (subnet->getCalculateTeeTimes()) {
2686 t1_time =
static_cast<uint32_t
>(round(subnet->getT1Percent() * (lease->valid_lft_)));
2691 if (t1_time > 0 && t1_time < timer_ceiling) {
2693 resp->addOption(t1);
2703 if (rai && rai->getOption(RAI_OPTION_RELAY_PORT)) {
2705 return (query->getRemotePort());
2733 }
else if (((query->getType() ==
DHCPINFORM) &&
2734 ((!query->getCiaddr().isV4Zero()) ||
2735 (!query->isRelayed() && !query->getRemoteAddr().isV4Zero()))) ||
2736 ((query->getType() !=
DHCPINFORM) && !query->isRelayed())) {
2737 response->setRemotePort(DHCP4_CLIENT_PORT);
2742 response->setRemotePort(relay_port ? relay_port : DHCP4_SERVER_PORT);
2746 if (query->isRelayed() &&
2752 response->resetIndex();
2754 response->setIface(query->getIface());
2758 IOAddress local_addr = query->getLocalAddr();
2767 if (local_addr.
isV4Bcast() || query->isDhcp4o6()) {
2778 response->setLocalAddr(local_addr);
2787 response->setIndex(query->getIndex());
2788 response->setIface(query->getIface());
2794 response->setLocalPort(DHCP4_SERVER_PORT);
2806 if (query->isDhcp4o6()) {
2807 response->setRemoteAddr(query->getRemoteAddr());
2819 if (!query->getCiaddr().isV4Zero()) {
2820 response->setRemoteAddr(query->getCiaddr());
2827 }
else if (query->isRelayed()) {
2828 response->setRemoteAddr(query->getGiaddr());
2829 response->setFlags(response->getFlags() | BOOTP_BROADCAST);
2834 response->setRemoteAddr(query->getRemoteAddr());
2841 if (query->isRelayed()) {
2850 query->getCiaddr().isV4Zero()) {
2851 response->setFlags(BOOTP_BROADCAST);
2853 response->setRemoteAddr(query->getGiaddr());
2857 }
else if (!query->getCiaddr().isV4Zero()) {
2858 response->setRemoteAddr(query->getCiaddr());
2863 }
else if (response->getType() ==
DHCPNAK) {
2867 }
else if (!response->getYiaddr().isV4Zero()) {
2882 response->setRemoteAddr(response ->getYiaddr());
2890 response->setRemoteAddr(query->getRemoteAddr());
2895 response->setRemoteAddr(query->getRemoteAddr());
2907 IOAddress subnet_next_server = subnet->getSiaddr();
2908 if (!subnet_next_server.
isV4Zero()) {
2909 response->setSiaddr(subnet_next_server);
2912 const string& sname = subnet->getSname();
2913 if (!sname.empty()) {
2919 response->setSname(
reinterpret_cast<const uint8_t*
>(sname.c_str()),
2923 const string& filename = subnet->getFilename();
2924 if (!filename.empty()) {
2930 response->setFile(
reinterpret_cast<const uint8_t*
>(filename.c_str()),
2938 if (!classes.
empty()) {
2951 size_t found_cnt = 0;
2953 name != classes.
cend() && found_cnt < 3; ++name) {
2965 next_server = cl->getNextServer();
2967 response->setSiaddr(next_server);
2972 if (sname.empty()) {
2973 sname = cl->getSname();
2974 if (!sname.empty()) {
2980 response->setSname(
reinterpret_cast<const uint8_t*
>(sname.c_str()),
2986 if (filename.empty()) {
2987 filename = cl->getFilename();
2988 if (!filename.empty()) {
2994 response->setFile(
reinterpret_cast<const uint8_t*
>(filename.c_str()),
3008Dhcpv4Srv::getNetmaskOption(
const Subnet4Ptr& subnet) {
3037 if (MultiThreadingMgr::instance().getMode()) {
3111 if (MultiThreadingMgr::instance().getMode()) {
3124 }
else if (request->inClass(
"BOOTP")) {
3126 response->addClass(
"BOOTP");
3130 if (!response->getYiaddr().isV4Zero()) {
3193 .arg(release->getLabel())
3194 .arg(release->getCiaddr().toText());
3198 if (!lease->belongsToClient(release->getHWAddr(), client_id)) {
3200 .arg(release->getLabel())
3201 .arg(release->getCiaddr().toText());
3208 if (HooksManager::calloutsPresent(
Hooks.hook_index_lease4_release_)) {
3221 callout_handle->setArgument(
"query4", release);
3224 callout_handle->setArgument(
"lease4", lease);
3227 HooksManager::callCallouts(
Hooks.hook_index_lease4_release_,
3233 if ((callout_handle->getStatus() == CalloutHandle::NEXT_STEP_SKIP) ||
3234 (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_DROP)) {
3238 .arg(release->getLabel());
3250 context->old_lease_ = lease;
3254 .arg(release->getLabel())
3255 .arg(lease->addr_.toText());
3258 StatsMgr::instance().addValue(
3259 StatsMgr::generateName(
"subnet", lease->subnet_id_,
"assigned-addresses"),
3260 static_cast<int64_t
>(-1));
3268 .arg(release->getLabel())
3269 .arg(lease->addr_.toText());
3274 .arg(release->getLabel())
3275 .arg(release->getCiaddr())
3292 if (!opt_requested_address) {
3295 " in DHCPDECLINE sent from " << decline->getLabel());
3297 IOAddress addr(opt_requested_address->readAddress());
3315 .arg(addr.
toText()).arg(decline->getLabel());
3323 client_id.reset(
new ClientId(opt_clientid->getData()));
3327 if (!lease->belongsToClient(decline->getHWAddr(), client_id)) {
3330 string client_hw = decline->getHWAddr() ?
3331 decline->getHWAddr()->toText(
false) :
"(none)";
3332 string lease_hw = lease->hwaddr_ ?
3333 lease->hwaddr_->toText(
false) :
"(none)";
3336 string client_id_txt = client_id ? client_id->toText() :
"(none)";
3337 string lease_id_txt = lease->client_id_ ?
3338 lease->client_id_->toText() :
"(none)";
3342 .arg(addr.
toText()).arg(decline->getLabel())
3343 .arg(client_hw).arg(lease_hw).arg(client_id_txt).arg(lease_id_txt);
3360 if (HooksManager::calloutsPresent(
Hooks.hook_index_lease4_decline_)) {
3373 callout_handle->setArgument(
"query4", decline);
3376 callout_handle->setArgument(
"lease4", lease);
3379 HooksManager::callCallouts(
Hooks.hook_index_lease4_decline_,
3384 if ((callout_handle->getStatus() == CalloutHandle::NEXT_STEP_SKIP) ||
3385 (callout_handle->getStatus() == CalloutHandle::NEXT_STEP_DROP)) {
3387 .arg(decline->getLabel()).arg(lease->addr_.toText());
3392 Lease4Ptr old_values = boost::make_shared<Lease4>(*lease);
3406 .arg(decline->getLabel())
3407 .arg(lease->addr_.toText())
3419 StatsMgr::instance().addValue(
3420 StatsMgr::generateName(
"subnet", lease->subnet_id_,
"declined-addresses"),
3421 static_cast<int64_t
>(1));
3424 StatsMgr::instance().addValue(
"declined-addresses",
static_cast<int64_t
>(1));
3436 context->new_lease_ = lease;
3439 .arg(decline->getLabel()).arg(lease->valid_lft_);
3486 if (ack->getRemoteAddr() != inform->getGiaddr()) {
3488 .arg(inform->getLabel())
3489 .arg(ack->getRemoteAddr())
3490 .arg(ack->getIface());
3513 .arg(query->getLabel())
3514 .arg(query->getIface());
3522 .arg(query->getLabel())
3523 .arg(query->getIface());
3533 if (pkt->isRelayed()) {
3538 if (pkt->isDhcp4o6()) {
3547 if (pkt->getRemoteAddr().isV4Zero() &&
3548 pkt->getCiaddr().isV4Zero()) {
3559 bool result = (!pkt->getLocalAddr().isV4Bcast() ||
3574 type = query->getType();
3578 .arg(query->getLabel())
3579 .arg(query->getIface());
3603 .arg(query->getLabel());
3610 .arg(query->getLabel())
3615 .arg(query->getLabel())
3642 boost::dynamic_pointer_cast<OptionCustom>(option);
3645 if (!option_custom) {
3653 if (option_custom->getDataFieldsNum() != 1) {
3659 IOAddress server_id = option_custom->readAddress();
3660 if (!server_id.
isV4()) {
3700 if (cfg_subnets->hasSubnetWithServerId(server_id)) {
3707 if (cfg_networks->hasNetworkWithServerId(server_id)) {
3714 cclass != classes.
cend(); ++cclass) {
3717 getClientClassDictionary()->findClass(*cclass);
3722 if (ccdef->getCfgOption()->empty()) {
3727 OptionCustomPtr context_opt_server_id = boost::dynamic_pointer_cast<OptionCustom>
3729 if (context_opt_server_id && (context_opt_server_id->readAddress() == server_id)) {
3737 OptionCustomPtr opt_server_id = boost::dynamic_pointer_cast<OptionCustom>
3740 return (opt_server_id && (opt_server_id->readAddress() == server_id));
3750 <<
" received in message "
3751 << query->getName());
3758 " received in message "
3759 << query->getName());
3769 if (query->getHWAddr() && !query->getHWAddr()->hwaddr_.empty()) {
3778 if (!client_id || client_id->len() == client_id->getHeaderLen()) {
3780 " provided in message "
3781 << query->getName());
3798 subnet->getSharedNetwork(network);
3800 const ClientClasses& to_add = network->getRequiredClasses();
3802 cclass != to_add.
cend(); ++cclass) {
3810 cclass != to_add.
cend(); ++cclass) {
3818 addr = resp->getYiaddr();
3825 cclass != to_add.
cend(); ++cclass) {
3839 cclass != classes.
cend(); ++cclass) {
3862 query->addClass(*cclass);
3875 .arg(
"get exception?");
3883 BOOST_FOREACH(
const uint16_t& code, query->getDeferredOptions()) {
3888 cclass != classes.
cend(); ++cclass) {
3892 getClientClassDictionary()->findClass(*cclass);
3898 if (!ccdef->getCfgOptionDef()) {
3934 opt = def->optionFactory(
Option::V4, code, buf);
3935 }
catch (
const std::exception& e) {
3943 while (query->delOption(code)) {
3947 query->addOption(opt);
3959 this, ph::_1, ph::_2));
3977 arg(result).arg((ncr ? ncr->toText() :
" NULL "));
3989 std::stringstream tmp;
3993 tmp << endl << EXTENDED_VERSION << endl;
3994 tmp <<
"linked with:" << endl;
3995 tmp << Logger::getVersion() << endl;
3996 tmp << CryptoLink::getVersion() << endl;
3997 tmp <<
"database:" << endl;
4019 string stat_name =
"pkt4-unknown-received";
4021 switch (query->getType()) {
4023 stat_name =
"pkt4-discover-received";
4027 stat_name =
"pkt4-offer-received";
4030 stat_name =
"pkt4-request-received";
4034 stat_name =
"pkt4-ack-received";
4038 stat_name =
"pkt4-nak-received";
4041 stat_name =
"pkt4-release-received";
4044 stat_name =
"pkt4-decline-received";
4047 stat_name =
"pkt4-inform-received";
4061 static_cast<int64_t
>(1));
4067 static_cast<int64_t
>(1));
4071 switch (response->getType()) {
4073 stat_name =
"pkt4-offer-sent";
4076 stat_name =
"pkt4-ack-sent";
4079 stat_name =
"pkt4-nak-sent";
4087 static_cast<int64_t
>(1));
4091 return (
Hooks.hook_index_buffer4_receive_);
4095 return (
Hooks.hook_index_pkt4_receive_);
4099 return (
Hooks.hook_index_subnet4_select_);
4103 return (
Hooks.hook_index_lease4_release_);
4107 return (
Hooks.hook_index_pkt4_send_);
4111 return (
Hooks.hook_index_buffer4_send_);
4115 return (
Hooks.hook_index_lease4_decline_);
4120 HooksManager::clearParkingLots();
4124 static std::list<std::list<std::string>>
const list({
4125 {
"config-control",
"config-databases",
"[]"},
4126 {
"hooks-libraries",
"[]",
"parameters",
"*"},
4128 {
"hosts-databases",
"[]"},
A generic exception that is thrown if a parameter given to a method is considered invalid in that con...
This is a base class for exceptions thrown from the DNS library module.
virtual const char * what() const
Returns a C-style character string of the cause of the exception.
A generic exception that is thrown when an unexpected error condition occurs.
The IOAddress class represents an IP addresses (version agnostic)
static const IOAddress & IPV4_ZERO_ADDRESS()
Returns an address set to all zeros.
bool isV4Zero() const
Convenience function to check if it is an IPv4 zero address.
std::string toText() const
Convert the address to a string.
static const IOAddress & IPV4_BCAST_ADDRESS()
Returns a "255.255.255.255" broadcast address.
uint32_t toUint32() const
Converts IPv4 address to uint32_t.
bool isV4() const
Convenience function to check for an IPv4 address.
bool isV6Zero() const
Convenience function to check if it is an IPv4 zero address.
bool isV4Bcast() const
Convenience function to check if it is an IPv4 broadcast address.
bool isV6LinkLocal() const
checks whether and address is IPv6 and is link-local
The IOService class is a wrapper for the ASIO io_service class.
DHCPv4 and DHCPv6 allocation engine.
boost::shared_ptr< ClientContext4 > ClientContext4Ptr
Pointer to the ClientContext4.
Implementation of the mechanisms to control the use of the Configuration Backends by the DHCPv4 serve...
@ USE_ROUTING
Server uses routing to determine the right interface to send response.
@ SOCKET_UDP
Datagram socket, i.e. IP/UDP socket.
D2ClientMgr & getD2ClientMgr()
Fetches the DHCP-DDNS manager.
static CfgMgr & instance()
returns a single instance of Configuration Manager
SrvConfigPtr getCurrentCfg()
Returns a pointer to the current configuration.
static SubnetSelector initSelector(const Pkt4Ptr &query)
Build selector from a client's message.
Container for storing client class names.
void insert(const ClientClass &class_name)
Insert an element.
std::list< ClientClass >::const_iterator const_iterator
Type of iterators.
bool empty() const
Check if classes is empty.
std::string toText(const std::string &separator=", ") const
Returns all class names as text.
const_iterator cbegin() const
Iterator to the first element.
const_iterator cend() const
Iterator to the past the end element.
Client race avoidance RAII handler.
bool tryLock(Pkt4Ptr query, ContinuationPtr cont=ContinuationPtr())
Tries to acquires a client.
Holds Client identifier or client IPv4 address.
static std::string getDBVersion()
Local version of getDBVersion() class method.
ReplaceClientNameMode
Defines the client name replacement modes.
D2ClientMgr isolates Kea from the details of being a D2 client.
std::string generateFqdn(const asiolink::IOAddress &address, const DdnsParams &ddns_params, const bool trailing_dot=true) const
Builds a FQDN based on the configuration and given IP address.
bool ddnsEnabled()
Convenience method for checking if DHCP-DDNS is enabled.
void startSender(D2ClientErrorHandler error_handler, isc::asiolink::IOService &io_service)
Enables sending NameChangeRequests to kea-dhcp-ddns.
void getUpdateDirections(const T &fqdn_resp, bool &forward, bool &reverse)
Get directional update flags based on server FQDN flags.
void suspendUpdates()
Suspends sending requests.
void adjustDomainName(const T &fqdn, T &fqdn_resp, const DdnsParams &ddns_params)
Set server FQDN name based on configuration and a given FQDN.
void stopSender()
Disables sending NameChangeRequests to kea-dhcp-ddns.
void adjustFqdnFlags(const T &fqdn, T &fqdn_resp, const DdnsParams &ddns_params)
Set server FQDN flags based on configuration and a given FQDN.
std::string qualifyName(const std::string &partial_name, const DdnsParams &ddns_params, const bool trailing_dot) const
Adds a qualifying suffix to a given domain name.
Convenience container for conveying DDNS behavioral parameters It is intended to be created per Packe...
bool getUpdateOnRenew() const
Returns whether or not DNS should be updated when leases renew.
bool getEnableUpdates() const
Returns whether or not DHCP DDNS updating is enabled.
void close()
Close communication socket.
static Dhcp4to6Ipc & instance()
Returns pointer to the sole instance of Dhcp4to6Ipc.
AllocEngine::ClientContext4Ptr getContext() const
Returns the copy of the context for the Allocation engine.
void deleteResponse()
Removes the response message by resetting the pointer to NULL.
Pkt4Ptr getQuery() const
Returns the pointer to the query from the client.
static void classifyByVendor(const Pkt4Ptr &pkt)
Assign class using vendor-class-identifier option.
void initResponse()
Initializes the instance of the response message.
void setReservedMessageFields()
Sets reserved values of siaddr, sname and file in the server's response.
CfgOptionList & getCfgOptionList()
Returns the configured option list (non-const version)
Pkt4Ptr getResponse() const
Returns the pointer to the server's response.
static void setReservedClientClasses(AllocEngine::ClientContext4Ptr context)
Assigns classes retrieved from host reservation database.
void initResponse4o6()
Initializes the DHCPv6 part of the response message.
static void classifyPacket(const Pkt4Ptr &pkt)
Assigns incoming packet to zero or more classes.
Dhcpv4Exchange(const AllocEnginePtr &alloc_engine, const Pkt4Ptr &query, const Subnet4Ptr &subnet, bool &drop)
Constructor.
void conditionallySetReservedClientClasses()
Assigns classes retrieved from host reservation database if they haven't been yet set.
int run()
Main server processing loop.
void declineLease(const Lease4Ptr &lease, const Pkt4Ptr &decline, AllocEngine::ClientContext4Ptr &context)
Marks lease as declined.
void classifyPacket(const Pkt4Ptr &pkt)
Assigns incoming packet to zero or more classes.
void appendRequestedVendorOptions(Dhcpv4Exchange &ex)
Appends requested vendor options as requested by client.
void adjustIfaceData(Dhcpv4Exchange &ex)
Set IP/UDP and interface parameters for the DHCPv4 response.
void run_one()
Main server processing step.
static uint16_t checkRelayPort(const Dhcpv4Exchange &ex)
Check if the relay port RAI sub-option was set in the query.
bool acceptDirectRequest(const Pkt4Ptr &query) const
Check if a message sent by directly connected client should be accepted or discarded.
virtual ~Dhcpv4Srv()
Destructor. Used during DHCPv4 service shutdown.
virtual Pkt4Ptr receivePacket(int timeout)
dummy wrapper around IfaceMgr::receive4
void processPacketAndSendResponseNoThrow(Pkt4Ptr &query)
Process a single incoming DHCPv4 packet and sends the response.
static void appendServerID(Dhcpv4Exchange &ex)
Adds server identifier option to the server's response.
void postAllocateNameUpdate(const AllocEngine::ClientContext4Ptr &ctx, const Lease4Ptr &lease, const Pkt4Ptr &query, const Pkt4Ptr &resp, bool client_name_changed)
Update client name and DNS flags in the lease and response.
void processDhcp4QueryAndSendResponse(Pkt4Ptr &query, Pkt4Ptr &rsp, bool allow_packet_park)
Process a single incoming DHCPv4 query.
void startD2()
Starts DHCP_DDNS client IO if DDNS updates are enabled.
bool accept(const Pkt4Ptr &query) const
Checks whether received message should be processed or discarded.
static int getHookIndexBuffer4Receive()
Returns the index for "buffer4_receive" hook point.
Pkt4Ptr processRequest(Pkt4Ptr &request, AllocEngine::ClientContext4Ptr &context)
Processes incoming REQUEST and returns REPLY response.
static void processStatsReceived(const Pkt4Ptr &query)
Class methods for DHCPv4-over-DHCPv6 handler.
static int getHookIndexPkt4Send()
Returns the index for "pkt4_send" hook point.
void processDecline(Pkt4Ptr &decline, AllocEngine::ClientContext4Ptr &context)
Process incoming DHCPDECLINE messages.
Dhcpv4Srv(uint16_t server_port=DHCP4_SERVER_PORT, uint16_t client_port=0, const bool use_bcast=true, const bool direct_response_desired=true)
Default constructor.
static int getHookIndexSubnet4Select()
Returns the index for "subnet4_select" hook point.
static void processStatsSent(const Pkt4Ptr &response)
Updates statistics for transmitted packets.
void shutdown() override
Instructs the server to shut down.
static int getHookIndexLease4Release()
Returns the index for "lease4_release" hook point.
void adjustRemoteAddr(Dhcpv4Exchange &ex)
Sets remote addresses for outgoing packet.
void processDhcp4Query(Pkt4Ptr &query, Pkt4Ptr &rsp, bool allow_packet_park)
Process a single incoming DHCPv4 query.
static int getHookIndexPkt4Receive()
Returns the index for "pkt4_receive" hook point.
void assignLease(Dhcpv4Exchange &ex)
Assigns a lease and appends corresponding options.
asiolink::IOServicePtr & getIOService()
Returns pointer to the IO service used by the server.
void setFixedFields(Dhcpv4Exchange &ex)
Sets fixed fields of the outgoing packet.
void appendBasicOptions(Dhcpv4Exchange &ex)
Append basic options if they are not present.
void sendResponseNoThrow(hooks::CalloutHandlePtr &callout_handle, Pkt4Ptr &query, Pkt4Ptr &rsp)
Process an unparked DHCPv4 packet and sends the response.
void processClientName(Dhcpv4Exchange &ex)
Processes Client FQDN and Hostname Options sent by a client.
boost::shared_ptr< AllocEngine > alloc_engine_
Allocation Engine.
void requiredClassify(Dhcpv4Exchange &ex)
Assigns incoming packet to zero or more classes (required pass).
uint16_t client_port_
UDP port number to which server sends all responses.
std::list< std::list< std::string > > jsonPathsToRedact() const final override
Return a list of all paths that contain passwords or secrets for kea-dhcp4.
static std::string srvidToString(const OptionPtr &opt)
converts server-id to text Converts content of server-id option to a text representation,...
bool acceptServerId(const Pkt4Ptr &pkt) const
Verifies if the server id belongs to our server.
static const std::string VENDOR_CLASS_PREFIX
this is a prefix added to the content of vendor-class option
Pkt4Ptr processInform(Pkt4Ptr &inform)
Processes incoming DHCPINFORM messages.
void createNameChangeRequests(const Lease4Ptr &lease, const Lease4Ptr &old_lease, const DdnsParams &ddns_params)
Creates NameChangeRequests which correspond to the lease which has been acquired.
void appendRequestedOptions(Dhcpv4Exchange &ex)
Appends options requested by client.
void setPacketStatisticsDefaults()
This function sets statistics related to DHCPv4 packets processing to their initial values.
static std::string getVersion(bool extended)
returns Kea version on stdout and exit.
isc::dhcp::Subnet4Ptr selectSubnet4o6(const Pkt4Ptr &query, bool &drop, bool sanity_only=false) const
Selects a subnet for a given client's DHCP4o6 packet.
void buildCfgOptionList(Dhcpv4Exchange &ex)
Build the configured option list.
volatile bool shutdown_
Indicates if shutdown is in progress.
uint16_t server_port_
UDP port number on which server listens.
NetworkStatePtr network_state_
Holds information about disabled DHCP service and/or disabled subnet/network scopes.
void setTeeTimes(const Lease4Ptr &lease, const Subnet4Ptr &subnet, Pkt4Ptr resp)
Adds the T1 and T2 timers to the outbound response as appropriate.
bool getSendResponsesToSource() const
Returns value of the test_send_responses_to_source_ flag.
void processPacketAndSendResponse(Pkt4Ptr &query)
Process a single incoming DHCPv4 packet and sends the response.
isc::dhcp::Subnet4Ptr selectSubnet(const Pkt4Ptr &query, bool &drop, bool sanity_only=false) const
Selects a subnet for a given client's packet.
virtual void d2ClientErrorHandler(const dhcp_ddns::NameChangeSender::Result result, dhcp_ddns::NameChangeRequestPtr &ncr)
Implements the error handler for DHCP_DDNS IO errors.
virtual void sendPacket(const Pkt4Ptr &pkt)
dummy wrapper around IfaceMgr::send()
static int getHookIndexBuffer4Send()
Returns the index for "buffer4_send" hook point.
void stopD2()
Stops DHCP_DDNS client IO if DDNS updates are enabled.
bool acceptMessageType(const Pkt4Ptr &query) const
Check if received message type is valid for the server to process.
static void sanityCheck(const Pkt4Ptr &query, RequirementLevel serverid)
Verifies if specified packet meets RFC requirements.
void processPacket(Pkt4Ptr &query, Pkt4Ptr &rsp, bool allow_packet_park=true)
Process a single incoming DHCPv4 packet.
void discardPackets()
Discards parked packets Clears the packet parking lots of all packets.
static int getHookIndexLease4Decline()
Returns the index for "lease4_decline" hook point.
void processRelease(Pkt4Ptr &release, AllocEngine::ClientContext4Ptr &context)
Processes incoming DHCPRELEASE messages.
void processPacketPktSend(hooks::CalloutHandlePtr &callout_handle, Pkt4Ptr &query, Pkt4Ptr &rsp)
Executes pkt4_send callout.
Pkt4Ptr processDiscover(Pkt4Ptr &discover)
Processes incoming DISCOVER and returns response.
RequirementLevel
defines if certain option may, must or must not appear
void processPacketBufferSend(hooks::CalloutHandlePtr &callout_handle, Pkt4Ptr &rsp)
Executes buffer4_send callout and sends the response.
void deferredUnpack(Pkt4Ptr &query)
Perform deferred option unpacking.
IdentifierType
Type of the host identifier.
@ IDENT_FLEX
Flexible host identifier.
std::string getIdentifierAsText() const
Returns host identifier in a textual form.
static IfaceMgr & instance()
IfaceMgr is a singleton class.
bool isDirectResponseSupported() const
Check if packet be sent directly to the client having no address.
bool send(const Pkt6Ptr &pkt)
Sends an IPv6 packet.
void closeSockets()
Closes all open sockets.
void setMatchingPacketFilter(const bool direct_response_desired=false)
Set Packet Filter object to handle send/receive packets.
uint16_t getSocket(const isc::dhcp::Pkt6Ptr &pkt)
Return most suitable socket for transmitting specified IPv6 packet.
static void destroy()
Destroy lease manager.
static LeaseMgr & instance()
Return current lease manager.
virtual Lease4Ptr getLease4(const isc::asiolink::IOAddress &addr) const =0
Returns an IPv4 lease for specified IPv4 address.
virtual bool deleteLease(const Lease4Ptr &lease)=0
Deletes an IPv4 lease.
virtual void updateLease4(const Lease4Ptr &lease4)=0
Updates IPv4 lease.
static OptionDefinitionPtr getOptionDef(const std::string &space, const uint16_t code)
Return the first option definition matching a particular option code.
static OptionDefinitionPtr getRuntimeOptionDef(const std::string &space, const uint16_t code)
Returns runtime (non-standard) option definition by space and option code.
static OptionDefinitionPtr getLastResortOptionDef(const std::string &space, const uint16_t code)
Returns last resort option definition by space and option code.
static std::string getDBVersion()
Local version of getDBVersion() class method.
static std::string getDBVersion()
Local version of getDBVersion() class method.
Holds information about DHCP service enabling status.
DHCPv4 Option class for handling list of IPv4 addresses.
std::vector< isc::asiolink::IOAddress > AddressContainer
Defines a collection of IPv4 addresses.
Represents DHCPv4 Client FQDN Option (code 81).
bool getFlag(const uint8_t flag) const
Checks if the specified flag of the DHCPv4 Client FQDN Option is set.
void setDomainName(const std::string &domain_name, const DomainNameType domain_name_type)
Set new domain-name.
void setFlag(const uint8_t flag, const bool set)
Modifies the value of the specified DHCPv4 Client Fqdn Option flag.
static const uint8_t FLAG_E
Bit E.
virtual std::string toText(int indent=0) const
Returns string representation of the option.
Option with defined data fields represented as buffers that can be accessed using data field index.
static unsigned int getLabelCount(const std::string &text_name)
Return the number of labels in the Name.
OptionPtr option_
Option instance.
Forward declaration to OptionIntArray.
const std::vector< T > & getValues() const
Return collection of option values.
Forward declaration to OptionInt.
Class which represents an option carrying a single string value.
This class represents vendor-specific information option.
uint32_t getVendorId() const
Returns enterprise identifier.
static const size_t OPTION4_HDR_LEN
length of the usual DHCPv4 option header (there are exceptions)
static std::string getDBVersion()
Local version of getDBVersion() class method.
Represents DHCPv4 packet.
static const uint16_t FLAG_BROADCAST_MASK
Mask for the value of flags field in the DHCPv4 message to check whether client requested broadcast r...
Represents DHCPv4-over-DHCPv6 packet.
Represents a DHCPv6 packet.
An exception that is thrown if a DHCPv6 protocol violation occurs while processing a message (e....
RAII object enabling copying options retrieved from the packet.
Exception thrown when a call to select is interrupted by a signal.
Exception thrown during option unpacking This exception is thrown when an error has occurred,...
Result
Defines the outcome of an asynchronous NCR send.
Wrapper class around callout handle which automatically resets handle's state.
int getExitValue()
Fetches the exit value.
Statistics Manager class.
static StatsMgr & instance()
Statistics Manager accessor method.
RAII class creating a critical section.
Contains declarations for loggers used by the DHCPv4 server component.
Defines the Dhcp4o6Ipc class.
#define VENDOR_ID_CABLE_LABS
#define isc_throw(type, stream)
A shortcut macro to insert known values into exception arguments.
boost::shared_ptr< OptionUint8Array > OptionUint8ArrayPtr
OptionInt< uint32_t > OptionUint32
boost::shared_ptr< OptionUint32 > OptionUint32Ptr
void setValue(const std::string &name, const int64_t value)
Records absolute integer observation.
void addValue(const std::string &name, const int64_t value)
Records incremental integer observation.
An abstract API for lease database.
#define LOG_ERROR(LOGGER, MESSAGE)
Macro to conveniently test error output and log it.
#define LOG_INFO(LOGGER, MESSAGE)
Macro to conveniently test info output and log it.
#define LOG_WARN(LOGGER, MESSAGE)
Macro to conveniently test warn output and log it.
#define LOG_DEBUG(LOGGER, LEVEL, MESSAGE)
Macro to conveniently test debug output and log it.
IOAddress getNetmask4(uint8_t len)
Generates an IPv4 netmask of specified length.
boost::shared_ptr< const Element > ConstElementPtr
const char *const config_report[]
boost::shared_ptr< NameChangeRequest > NameChangeRequestPtr
Defines a pointer to a NameChangeRequest.
const isc::log::MessageID DHCP4_BUFFER_RECEIVE_FAIL
isc::log::Logger ddns4_logger(DHCP4_DDNS_LOGGER_NAME)
Logger for Hostname or FQDN processing.
const isc::log::MessageID DHCP4_PACKET_DROP_0004
const isc::log::MessageID DHCP4_SRV_DHCP4O6_ERROR
const isc::log::MessageID DHCP4_RELEASE_EXCEPTION
const isc::log::MessageID DHCP4_SUBNET_DATA
const isc::log::MessageID DHCP4_INIT_REBOOT
const isc::log::MessageID DHCP4_HOOK_PACKET_SEND_SKIP
const isc::log::MessageID DHCP4_FLEX_ID
const isc::log::MessageID DHCP4_PACKET_DROP_0003
const isc::log::MessageID DHCP4_DEFERRED_OPTION_UNPACK_FAIL
const isc::log::MessageID DHCP4_PACKET_DROP_0001
const isc::log::MessageID DHCP4_QUERY_DATA
boost::shared_ptr< Subnet4 > Subnet4Ptr
A pointer to a Subnet4 object.
const isc::log::MessageID DHCP4_NO_LEASE_INIT_REBOOT
const isc::log::MessageID DHCP4_INFORM_DIRECT_REPLY
boost::shared_ptr< Lease4Collection > Lease4CollectionPtr
A shared pointer to the collection of IPv4 leases.
void queueNCR(const NameChangeType &chg_type, const Lease4Ptr &lease)
Creates name change request from the DHCPv4 lease.
const isc::log::MessageID DHCP4_CLIENT_FQDN_PROCESS
const isc::log::MessageID DHCP4_DEFERRED_OPTION_MISSING
const isc::log::MessageID EVAL_RESULT
const isc::log::MessageID DHCP4_HOOK_SUBNET4_SELECT_DROP
@ DHO_DOMAIN_NAME_SERVERS
@ DHO_VENDOR_CLASS_IDENTIFIER
@ DHO_DHCP_REBINDING_TIME
@ DHO_DHCP_SERVER_IDENTIFIER
@ DHO_DHCP_CLIENT_IDENTIFIER
@ DHO_DHCP_REQUESTED_ADDRESS
@ DHO_DHCP_PARAMETER_REQUEST_LIST
const isc::log::MessageID DHCP4_PACKET_DROP_0008
const isc::log::MessageID DHCP4_HOOK_LEASES4_COMMITTED_DROP
const isc::log::MessageID DHCP4_RELEASE_FAIL_WRONG_CLIENT
const isc::log::MessageID DHCP4_LEASE_ADVERT
const isc::log::MessageID DHCP4_HOOK_BUFFER_RCVD_DROP
boost::shared_ptr< OptionCustom > OptionCustomPtr
A pointer to the OptionCustom object.
const isc::log::MessageID DHCP4_HOOK_PACKET_RCVD_SKIP
const int DBG_DHCP4_BASIC_DATA
Debug level used to log the traces with some basic data.
const isc::log::MessageID DHCP4_LEASE_ALLOC
const int DBG_DHCP4_DETAIL
Debug level used to trace detailed errors.
boost::shared_ptr< Pkt4 > Pkt4Ptr
A pointer to Pkt4 object.
isc::log::Logger lease4_logger(DHCP4_LEASE_LOGGER_NAME)
Logger for lease allocation logic.
const isc::log::MessageID DHCP4_NCR_CREATION_FAILED
isc::log::Logger options4_logger(DHCP4_OPTIONS_LOGGER_NAME)
Logger for options parser.
const isc::log::MessageID DHCP4_HOOK_SUBNET4_SELECT_SKIP
const int DBG_DHCP4_DETAIL_DATA
This level is used to log the contents of packets received and sent.
const isc::log::MessageID DHCP4_PACKET_PACK
boost::shared_ptr< AllocEngine > AllocEnginePtr
A pointer to the AllocEngine object.
ContinuationPtr makeContinuation(Continuation &&cont)
Continuation factory.
const isc::log::MessageID DHCP4_DECLINE_FAIL
const isc::log::MessageID DHCP4_LEASE_REUSE
boost::shared_ptr< const CfgHostOperations > ConstCfgHostOperationsPtr
Pointer to the const object.
boost::shared_ptr< CfgIface > CfgIfacePtr
A pointer to the CfgIface .
const isc::log::MessageID DHCP4_PACKET_PACK_FAIL
boost::shared_ptr< ClientClassDef > ClientClassDefPtr
a pointer to an ClientClassDef
const isc::log::MessageID DHCP4_DDNS_REQUEST_SEND_FAILED
const isc::log::MessageID DHCP4_GENERATE_FQDN
const isc::log::MessageID DHCP4_CLASS_ASSIGNED
const isc::log::MessageID DHCP4_PACKET_PROCESS_STD_EXCEPTION
boost::shared_ptr< SrvConfig > SrvConfigPtr
Non-const pointer to the SrvConfig.
const isc::log::MessageID DHCP4_RESPONSE_HOSTNAME_DATA
const isc::log::MessageID DHCP4_BUFFER_WAIT_SIGNAL
const isc::log::MessageID DHCP4_HOOK_LEASE4_RELEASE_SKIP
const isc::log::MessageID DHCP4_POST_ALLOCATION_NAME_UPDATE_FAIL
const isc::log::MessageID DHCP4_PACKET_NAK_0001
const isc::log::MessageID DHCP4_HOOK_DECLINE_SKIP
const isc::log::MessageID DHCP4_DECLINE_LEASE_MISMATCH
const isc::log::MessageID DHCP4_SRV_UNLOAD_LIBRARIES_ERROR
const isc::log::MessageID DHCP4_RESPONSE_HOSTNAME_GENERATE
boost::shared_ptr< HWAddr > HWAddrPtr
Shared pointer to a hardware address structure.
const isc::log::MessageID DHCP4_PACKET_DROP_0013
const isc::log::MessageID DHCP4_PACKET_QUEUE_FULL
const isc::log::MessageID DHCP4_PACKET_DROP_0009
const isc::log::MessageID DHCP4_PACKET_RECEIVED
boost::shared_ptr< Pkt4o6 > Pkt4o6Ptr
A pointer to Pkt4o6 object.
const isc::log::MessageID DHCP4_BUFFER_UNPACK
const isc::log::MessageID DHCP4_CLIENT_HOSTNAME_DATA
const isc::log::MessageID DHCP4_PACKET_SEND_FAIL
std::pair< OptionContainerPersistIndex::const_iterator, OptionContainerPersistIndex::const_iterator > OptionContainerPersistRange
Pair of iterators to represent the range of options having the same persistency flag.
boost::shared_ptr< OptionDefinition > OptionDefinitionPtr
Pointer to option definition object.
boost::shared_ptr< Option4ClientFqdn > Option4ClientFqdnPtr
A pointer to the Option4ClientFqdn object.
const isc::log::MessageID DHCP4_CLIENTID_IGNORED_FOR_LEASES
const isc::log::MessageID DHCP4_CLIENT_NAME_PROC_FAIL
const isc::log::MessageID DHCP4_CLIENT_HOSTNAME_PROCESS
const isc::log::MessageID DHCP4_SRV_CONSTRUCT_ERROR
boost::shared_ptr< Expression > ExpressionPtr
const isc::log::MessageID DHCP4_RELEASE_FAIL
const isc::log::MessageID DHCP4_RELEASE_FAIL_NO_LEASE
const isc::log::MessageID DHCP4_CLIENT_HOSTNAME_MALFORMED
boost::shared_ptr< Pool > PoolPtr
a pointer to either IPv4 or IPv6 Pool
boost::shared_ptr< OptionString > OptionStringPtr
Pointer to the OptionString object.
isc::log::Logger bad_packet4_logger(DHCP4_BAD_PACKET_LOGGER_NAME)
Logger for rejected packets.
isc::hooks::CalloutHandlePtr getCalloutHandle(const T &pktptr)
CalloutHandle Store.
const isc::log::MessageID DHCP4_PACKET_DROP_0006
const int DBG_DHCP4_BASIC
Debug level used to trace basic operations within the code.
boost::shared_ptr< ClientClassDictionary > ClientClassDictionaryPtr
Defines a pointer to a ClientClassDictionary.
const isc::log::MessageID DHCP4_SRV_D2STOP_ERROR
const isc::log::MessageID DHCP4_RESPONSE_FQDN_DATA
boost::shared_ptr< ClientId > ClientIdPtr
Shared pointer to a Client ID.
boost::shared_ptr< Continuation > ContinuationPtr
Define the type of shared pointers to continuations.
const isc::log::MessageID DHCP4_DECLINE_LEASE_NOT_FOUND
boost::shared_ptr< OptionContainer > OptionContainerPtr
Pointer to the OptionContainer object.
const isc::log::MessageID DHCP4_CLASS_UNTESTABLE
boost::shared_ptr< ClientClassDefList > ClientClassDefListPtr
Defines a pointer to a ClientClassDefList.
const isc::log::MessageID DHCP4_PACKET_DROP_0005
const isc::log::MessageID DHCP4_SUBNET_DYNAMICALLY_CHANGED
const isc::log::MessageID DHCP4_SHUTDOWN_REQUEST
@ DHCP_NOTYPE
Message Type option missing.
const char *const * dhcp4_config_report
const isc::log::MessageID DHCP4_PACKET_NAK_0003
const isc::log::MessageID DHCP4_TESTING_MODE_SEND_TO_SOURCE_ENABLED
boost::shared_ptr< const CfgSubnets4 > ConstCfgSubnets4Ptr
Const pointer.
const isc::log::MessageID DHCP4_BUFFER_RECEIVED
bool evaluateBool(const Expression &expr, Pkt &pkt)
Evaluate a RPN expression for a v4 or v6 packet and return a true or false decision.
const isc::log::MessageID DHCP4_SUBNET_SELECTION_FAILED
boost::shared_ptr< const Host > ConstHostPtr
Const pointer to the Host object.
const isc::log::MessageID DHCP4_RESPONSE_DATA
isc::log::Logger packet4_logger(DHCP4_PACKET_LOGGER_NAME)
Logger for processed packets.
OptionContainer::nth_index< 2 >::type OptionContainerPersistIndex
Type of the index #2 - option persistency flag.
const isc::log::MessageID DHCP4_DECLINE_LEASE
const isc::log::MessageID DHCP4_NCR_CREATE
const isc::log::MessageID DHCP4_PACKET_SEND
const isc::log::MessageID DHCP4_RELEASE
const isc::log::MessageID DHCP4_HOOK_BUFFER_RCVD_SKIP
boost::shared_ptr< Pkt6 > Pkt6Ptr
A pointer to Pkt6 packet.
std::vector< uint8_t > OptionBuffer
buffer types used in DHCP code.
const isc::log::MessageID DHCP4_OPEN_SOCKET
const isc::log::MessageID DHCP4_PACKET_DROP_0007
boost::shared_ptr< CfgSharedNetworks4 > CfgSharedNetworks4Ptr
Pointer to the configuration of IPv4 shared networks.
const isc::log::MessageID DHCP4_HOOK_PACKET_SEND_DROP
const isc::log::MessageID DHCP4_RESERVED_HOSTNAME_ASSIGNED
isc::log::Logger dhcp4_logger(DHCP4_APP_LOGGER_NAME)
Base logger for DHCPv4 server.
bool isClientClassBuiltIn(const ClientClass &client_class)
Check if a client class name is builtin.
const isc::log::MessageID DHCP4_PACKET_NAK_0002
const int DBG_DHCP4_HOOKS
Debug level used to trace hook related operations.
boost::shared_ptr< SharedNetwork4 > SharedNetwork4Ptr
Pointer to SharedNetwork4 object.
std::vector< Lease4Ptr > Lease4Collection
A collection of IPv4 leases.
const isc::log::MessageID DHCP4_HOOK_BUFFER_SEND_SKIP
const isc::log::MessageID DHCP4_PACKET_PROCESS_EXCEPTION
const isc::log::MessageID DHCP4_PACKET_OPTIONS_SKIPPED
const isc::log::MessageID DHCP4_EMPTY_HOSTNAME
const isc::log::MessageID DHCP4_SUBNET_SELECTED
const isc::log::MessageID DHCP4_PACKET_DROP_0010
boost::shared_ptr< Lease4 > Lease4Ptr
Pointer to a Lease4 structure.
const isc::log::MessageID DHCP4_CLASS_UNCONFIGURED
boost::shared_ptr< Option > OptionPtr
const int DBG_DHCP4_START
Debug level used to log information during server startup.
const isc::log::MessageID DHCP4_CLASS_UNDEFINED
const isc::log::MessageID DHCP4_HOOK_LEASES4_COMMITTED_PARK
const isc::log::MessageID DHCP4_HOOK_LEASES4_PARKING_LOT_FULL
std::list< ConstCfgOptionPtr > CfgOptionList
Const pointer list.
boost::shared_ptr< const CfgOption > ConstCfgOptionPtr
Const pointer.
const isc::log::MessageID DHCP4_PACKET_NAK_0004
const isc::log::MessageID DHCP4_CLIENT_FQDN_DATA
const isc::log::MessageID DHCP4_PACKET_DROP_0002
isc::log::Logger hooks_logger("hooks")
Hooks Logger.
boost::shared_ptr< CalloutHandle > CalloutHandlePtr
A shared pointer to a CalloutHandle object.
const int DBGLVL_TRACE_BASIC
Trace basic operations.
const int DBGLVL_PKT_HANDLING
This debug level is reserved for logging the details of packet handling, such as dropping the packet ...
boost::shared_ptr< StringSanitizer > StringSanitizerPtr
string trim(const string &instring)
Trim Leading and Trailing Spaces.
Defines the logger used by the top-level component of kea-lfc.
#define DHCP4_OPTION_SPACE
global std option spaces
Context information for the DHCPv4 lease allocation.
static std::string lifetimeToText(uint32_t lifetime)
Print lifetime.
structure that describes a single relay information
isc::asiolink::IOAddress linkaddr_
fixed field in relay-forw/relay-reply
Subnet selector used to specify parameters used to select a subnet.
asiolink::IOAddress local_address_
Address on which the message was received.
bool dhcp4o6_
Specifies if the packet is DHCP4o6.
asiolink::IOAddress option_select_
RAI link select or subnet select option.
std::string iface_name_
Name of the interface on which the message was received.
asiolink::IOAddress ciaddr_
ciaddr from the client's message.
ClientClasses client_classes_
Classes that the client belongs to.
asiolink::IOAddress remote_address_
Source address of the message.
OptionPtr interface_id_
Interface id option.
asiolink::IOAddress first_relay_linkaddr_
First relay link address.
asiolink::IOAddress giaddr_
giaddr from the client's message.