Line data Source code
1 : /*
2 : * Copyright (c) 2013 Juniper Networks, Inc. All rights reserved.
3 : */
4 :
5 : #include <base/contrail_ports.h>
6 : #include <cmn/dns.h>
7 : #include <bind/bind_util.h>
8 : #include <mgr/dns_mgr.h>
9 : #include <mgr/dns_oper.h>
10 : #include <bind/bind_resolver.h>
11 : #include <bind/named_config.h>
12 : #include <agent/agent_xmpp_channel.h>
13 :
14 15 : DnsManager::DnsManager()
15 15 : : bind_status_(boost::bind(&DnsManager::BindEventHandler, this, _1)),
16 15 : end_of_config_(false),
17 15 : record_send_count_(TaskScheduler::GetInstance()->HardwareThreadCount()),
18 15 : named_max_retransmissions_(kMaxRetransmitCount),
19 15 : named_retransmission_interval_(kPendingRecordReScheduleTime),
20 15 : named_lo_watermark_(kNamedLoWaterMark),
21 15 : named_hi_watermark_(kNamedHiWaterMark),
22 15 : named_send_throttled_(false),
23 15 : pending_done_queue_(TaskScheduler::GetInstance()->GetTaskId("dns::NamedSndRcv"), 0,
24 : boost::bind(&DnsManager::PendingDone, this, _1)),
25 45 : idx_(kMaxIndexAllocator) {
26 15 : std::vector<BindResolver::DnsServer> bind_servers;
27 15 : bind_servers.push_back(BindResolver::DnsServer("127.0.0.1",
28 15 : Dns::GetDnsPort()));
29 30 : BindResolver::Init(*Dns::GetEventManager()->io_service(), bind_servers,
30 15 : ContrailPorts::ContrailDnsClientUdpPort(),
31 : boost::bind(&DnsManager::HandleUpdateResponse,
32 : this, _1, _2), 0);
33 :
34 15 : Dns::SetDnsConfigManager(&config_mgr_);
35 15 : DnsConfigManager::Observers obs;
36 : obs.virtual_dns = boost::bind(&DnsManager::ProcessConfig<VirtualDnsConfig>,
37 15 : this, _1, _2, _3);
38 : obs.virtual_dns_record =
39 : boost::bind(&DnsManager::ProcessConfig<VirtualDnsRecordConfig>,
40 15 : this, _1, _2, _3);
41 15 : obs.ipam = boost::bind(&DnsManager::ProcessConfig<IpamConfig>, this, _1, _2, _3);
42 15 : obs.vnni = boost::bind(&DnsManager::ProcessConfig<VnniConfig>, this, _1, _2, _3);
43 : obs.global_qos = boost::bind(&DnsManager::ProcessConfig<GlobalQosConfig>,
44 15 : this, _1, _2, _3);
45 15 : Dns::GetDnsConfigManager()->RegisterObservers(obs);
46 :
47 15 : DnsConfig::VdnsCallback = boost::bind(&DnsManager::DnsView, this, _1, _2);
48 : DnsConfig::VdnsRecordCallback = boost::bind(&DnsManager::DnsRecord, this,
49 15 : _1, _2);
50 : DnsConfig::VdnsZoneCallback = boost::bind(&DnsManager::DnsPtrZone, this,
51 15 : _1, _2, _3);
52 15 : pending_timer_ =
53 15 : TimerManager::CreateTimer(*Dns::GetEventManager()->io_service(),
54 : "DnsRetransmitTimer",
55 : TaskScheduler::GetInstance()->GetTaskId("dns::NamedSndRcv"), 0);
56 :
57 15 : end_of_config_check_timer_ =
58 15 : TimerManager::CreateTimer(*Dns::GetEventManager()->io_service(),
59 : "Check_EndofConfig_Timer",
60 : TaskScheduler::GetInstance()->GetTaskId("dns::Config"), 0);
61 :
62 : // PreAllocate index 0 as it cannot be used as transaction id.
63 15 : idx_.AllocIndex();
64 15 : }
65 :
66 0 : void DnsManager::Initialize(DB *config_db, DBGraph *config_graph,
67 : const std::string& named_config_dir,
68 : const std::string& named_config_file,
69 : const std::string& named_log_file,
70 : const std::string& rndc_config_file,
71 : const std::string& rndc_secret,
72 : const std::string& named_max_cache_size,
73 : const uint16_t named_max_retransmissions,
74 : const uint16_t named_retranmission_interval) {
75 0 : NamedConfig::Init(named_config_dir, named_config_file,
76 : named_log_file, rndc_config_file, rndc_secret,
77 : named_max_cache_size);
78 0 : config_mgr_.Initialize(config_db, config_graph);
79 0 : named_max_retransmissions_ = named_max_retransmissions;
80 0 : named_retransmission_interval_ = named_retranmission_interval;
81 0 : }
82 :
83 15 : DnsManager::~DnsManager() {
84 15 : pending_timer_->Cancel();
85 15 : TimerManager::DeleteTimer(pending_timer_);
86 15 : end_of_config_check_timer_->Cancel();
87 15 : TimerManager::DeleteTimer(end_of_config_check_timer_);
88 15 : pending_done_queue_.Shutdown();
89 15 : }
90 :
91 15 : void DnsManager::Shutdown() {
92 15 : config_mgr_.Terminate();
93 15 : NamedConfig::Shutdown();
94 15 : BindResolver::Shutdown();
95 15 : }
96 :
97 : template <typename ConfigType>
98 171 : void DnsManager::ProcessConfig(IFMapNodeProxy *proxy,
99 : const std::string &name,
100 : DnsConfigManager::EventType event) {
101 171 : IFMapNode *node = proxy->node();
102 171 : ConfigType *config = ConfigType::Find(name);
103 171 : switch (event) {
104 58 : case DnsConfigManager::CFG_ADD:
105 58 : if (!config) {
106 50 : config = new ConfigType(node);
107 : }
108 58 : config->OnAdd(node);
109 58 : break;
110 :
111 55 : case DnsConfigManager::CFG_CHANGE:
112 55 : if (config)
113 55 : config->OnChange(node);
114 55 : break;
115 :
116 58 : case DnsConfigManager::CFG_DELETE:
117 58 : if (config) {
118 58 : config->OnDelete();
119 58 : delete config;
120 : }
121 58 : break;
122 :
123 0 : default:
124 0 : assert(0);
125 : }
126 171 : }
127 :
128 2 : void DnsManager::ProcessAgentUpdate(BindUtil::Operation event,
129 : const std::string &name,
130 : const std::string &vdns_name,
131 : const DnsItem &item) {
132 2 : std::scoped_lock lock(mutex_);
133 2 : VirtualDnsRecordConfig *config = VirtualDnsRecordConfig::Find(name);
134 2 : switch (event) {
135 1 : case BindUtil::ADD_UPDATE:
136 1 : if (!config) {
137 0 : config = new VirtualDnsRecordConfig(name, vdns_name, item);
138 : }
139 1 : config->rec_.source_name = item.source_name;
140 1 : config->OnAdd();
141 1 : break;
142 :
143 0 : case BindUtil::CHANGE_UPDATE:
144 0 : if (config)
145 0 : config->OnChange(item);
146 0 : break;
147 :
148 1 : case BindUtil::DELETE_UPDATE:
149 1 : if (config && (config->rec_.source_name == item.source_name)) {
150 0 : config->OnDelete();
151 0 : delete config;
152 : }
153 1 : break;
154 :
155 0 : default:
156 0 : assert(0);
157 : }
158 2 : }
159 :
160 30 : void DnsManager::DnsView(const DnsConfig *cfg, DnsConfig::DnsConfigEvent ev) {
161 :
162 30 : if (!end_of_config_)
163 0 : return;
164 :
165 30 : if (!bind_status_.IsUp())
166 0 : return;
167 :
168 30 : const VirtualDnsConfig *config = static_cast<const VirtualDnsConfig *>(cfg);
169 30 : DNS_BIND_TRACE(DnsBindTrace, "Virtual DNS <" << config->GetName() <<
170 : "> " << DnsConfig::ToEventString(ev));
171 30 : config->ClearNotified();
172 30 : std::string dns_domain = config->GetDomainName();
173 30 : if (dns_domain.empty()) {
174 0 : DNS_BIND_TRACE(DnsBindTrace, "Virtual DNS <" << config->GetName() <<
175 : "> doesnt have domain; ignoring event : " <<
176 : DnsConfig::ToEventString(ev));
177 0 : return;
178 : }
179 :
180 30 : NamedConfig *ncfg = NamedConfig::GetNamedConfigObject();
181 30 : if (ev == DnsConfig::CFG_ADD) {
182 11 : if (!CheckName(config->GetName(), dns_domain)) {
183 0 : return;
184 : }
185 11 : config->MarkNotified();
186 11 : ncfg->AddView(config);
187 19 : } else if (ev == DnsConfig::CFG_CHANGE) {
188 8 : if (CheckName(config->GetName(), dns_domain)) {
189 8 : config->MarkNotified();
190 : }
191 8 : ncfg->ChangeView(config);
192 8 : if (dns_domain != config->GetOldDomainName()) {
193 0 : NotifyAllDnsRecords(config, ev);
194 8 : } else if (config->HasReverseResolutionChanged()) {
195 8 : bool reverse_resolution = config->IsReverseResolutionEnabled();
196 : // if reverse resolution is enabled now, add the reverse records
197 : // if reverse resolution is disabled now, mark them as not notified
198 8 : NotifyReverseDnsRecords(config, ev, reverse_resolution);
199 : }
200 : } else {
201 11 : ncfg->DelView(config);
202 11 : PendingListViewDelete(config);
203 : }
204 30 : }
205 :
206 42 : void DnsManager::DnsPtrZone(const Subnet &subnet, const VirtualDnsConfig *vdns,
207 : DnsConfig::DnsConfigEvent ev) {
208 :
209 42 : if (!end_of_config_)
210 0 : return;
211 :
212 42 : if (!bind_status_.IsUp())
213 0 : return;
214 :
215 42 : std::string dns_domain = vdns->GetDomainName();
216 42 : if (dns_domain.empty()) {
217 0 : DNS_BIND_TRACE(DnsBindTrace, "Ptr Zone <" << vdns->GetName() <<
218 : "> ; ignoring event: " << DnsConfig::ToEventString(ev) <<
219 : " Domain: " << dns_domain << " Reverse Resolution: " <<
220 : (vdns->IsReverseResolutionEnabled()? "enabled" :
221 : "disabled"));
222 0 : return;
223 : }
224 :
225 42 : NamedConfig *ncfg = NamedConfig::GetNamedConfigObject();
226 42 : if (ev == DnsConfig::CFG_DELETE) {
227 29 : ncfg->DelZone(subnet, vdns);
228 29 : PendingListZoneDelete(subnet, vdns);
229 : } else {
230 13 : ncfg->AddZone(subnet, vdns);
231 : }
232 42 : DNS_BIND_TRACE(DnsBindTrace, "Virtual DNS <" << vdns->GetName() << "> " <<
233 : subnet.prefix.to_string() << "/" << subnet.plen << " " <<
234 : DnsConfig::ToEventString(ev));
235 42 : }
236 :
237 41 : void DnsManager::DnsRecord(const DnsConfig *cfg, DnsConfig::DnsConfigEvent ev) {
238 :
239 41 : if (!end_of_config_)
240 0 : return;
241 :
242 41 : if (!bind_status_.IsUp())
243 0 : return;
244 :
245 41 : if (named_send_throttled_)
246 0 : return;
247 :
248 41 : const VirtualDnsRecordConfig *config =
249 : static_cast<const VirtualDnsRecordConfig *>(cfg);
250 41 : config->ClearNotified();
251 41 : const DnsItem &item = config->GetRecord();
252 41 : if (item.name == "" || item.data == "") {
253 0 : DNS_BIND_TRACE(DnsBindError, "Virtual DNS Record <" <<
254 : config->GetName() <<
255 : "> doesnt have name / data; ignoring event : " <<
256 : DnsConfig::ToEventString(ev));
257 0 : return;
258 : }
259 :
260 41 : if (config->GetViewName() == "" || !config->GetVirtualDns()->IsValid()) {
261 0 : return;
262 : }
263 :
264 41 : switch (ev) {
265 23 : case DnsConfig::CFG_ADD:
266 : case DnsConfig::CFG_CHANGE:
267 23 : if (SendRecordUpdate(BindUtil::ADD_UPDATE, config))
268 23 : config->MarkNotified();
269 23 : break;
270 :
271 18 : case DnsConfig::CFG_DELETE:
272 18 : if (SendRecordUpdate(BindUtil::DELETE_UPDATE, config))
273 18 : config->ClearNotified();
274 18 : break;
275 :
276 0 : default:
277 0 : assert(0);
278 : }
279 : }
280 :
281 41 : bool DnsManager::SendRecordUpdate(BindUtil::Operation op,
282 : const VirtualDnsRecordConfig *config) {
283 41 : DnsItem item = config->GetRecord();
284 41 : const autogen::VirtualDnsType vdns = config->GetVDns();
285 :
286 41 : std::string zone;
287 41 : if (item.type == DNS_PTR_RECORD) {
288 2 : if (!vdns.reverse_resolution) {
289 0 : DNS_BIND_TRACE(DnsBindTrace, "Virtual DNS Record <" <<
290 : config->GetName() << "> PTR name " << item.name <<
291 : " not added - reverse resolution is not enabled");
292 0 : return false;
293 : }
294 2 : IpAddress addr;
295 2 : if (BindUtil::IsIP(item.name, addr)) {
296 0 : BindUtil::GetReverseZone(addr, addr.is_v4() ? 32 : 128, item.name);
297 : } else {
298 2 : if (!BindUtil::GetAddrFromPtrName(item.name, addr)) {
299 0 : DNS_BIND_TRACE(DnsBindError, "Virtual DNS Record <" <<
300 : config->GetName() << "> invalid PTR name " <<
301 : item.name << "; ignoring");
302 0 : return false;
303 : }
304 : }
305 2 : if (!CheckName(config->GetName(), item.data)) {
306 0 : return false;
307 : }
308 2 : Subnet net;
309 2 : if (!config->GetVirtualDns()->GetSubnet(addr, net)) {
310 0 : DNS_BIND_TRACE(DnsBindError, "Virtual DNS Record <" <<
311 : config->GetName() <<
312 : "> doesnt belong to a known subnet; ignoring");
313 0 : return false;
314 : }
315 2 : BindUtil::GetReverseZone(addr, net.plen, zone);
316 2 : item.data = BindUtil::GetFQDN(item.data, vdns.domain_name, ".");
317 : } else {
318 : // Bind allows special chars in CNAME, NS names and in CNAME data
319 78 : if ((item.type == DNS_A_RECORD || item.type == DNS_AAAA_RECORD) &&
320 78 : !CheckName(config->GetName(), item.name)) {
321 0 : return false;
322 : }
323 39 : if (BindUtil::IsReverseZone(item.name)) {
324 0 : if (item.type != DNS_NS_RECORD) {
325 0 : DNS_BIND_TRACE(DnsBindError, "Virtual DNS Record <" <<
326 : config->GetName() <<
327 : "> only PTR and NS records allowed in reverse zone; ignoring");
328 0 : return false;
329 : }
330 0 : if (!vdns.reverse_resolution) {
331 0 : DNS_BIND_TRACE(DnsBindTrace, "Virtual DNS Record <" <<
332 : config->GetName() << "> NS name " << item.name <<
333 : " not added - reverse resolution is not enabled");
334 0 : return false;
335 : }
336 0 : IpAddress addr;
337 0 : if (!BindUtil::GetAddrFromPtrName(item.name, addr)) {
338 0 : DNS_BIND_TRACE(DnsBindError, "Virtual DNS Record <" <<
339 : config->GetName() << "> invalid reverse name " <<
340 : item.name << "; ignoring");
341 0 : return false;
342 : }
343 0 : Subnet net;
344 0 : if (!config->GetVirtualDns()->GetSubnet(addr, net)) {
345 0 : DNS_BIND_TRACE(DnsBindError, "Virtual DNS Record <" <<
346 : config->GetName() <<
347 : "> doesnt belong to a known subnet; ignoring");
348 0 : return false;
349 : }
350 0 : BindUtil::GetReverseZone(addr, net.plen, zone);
351 : } else {
352 39 : zone = config->GetVDns().domain_name;
353 78 : item.name = BindUtil::GetFQDN(item.name,
354 39 : vdns.domain_name, vdns.domain_name);
355 : }
356 39 : if (item.type == DNS_CNAME_RECORD || item.type == DNS_MX_RECORD)
357 0 : item.data = BindUtil::GetFQDN(item.data, vdns.domain_name, ".");
358 : // In case of NS record, ensure that there are no special characters in data.
359 : // When it is virtual dns name, we could have chars like ':'
360 39 : if (item.type == DNS_NS_RECORD)
361 0 : BindUtil::RemoveSpecialChars(item.data);
362 : }
363 : /* Fix for CEM-21076
364 : * If we have a static DNS record and a VM with the hostname same as the static DNS record
365 : * and we delete the VM, then we should not call SendUpdate() after deleting the VM,
366 : * because after calling SendUpdate(), DNS queries for the static DNS record will not be resolved
367 : */
368 41 : if (config->src_ == VirtualDnsRecordConfig::Agent && op == BindUtil::DELETE_UPDATE) {
369 0 : VirtualDnsConfig *virt_dns = config->GetVirtualDns();
370 0 : for (VirtualDnsConfig::VDnsRec::const_iterator it =
371 0 : virt_dns->virtual_dns_records_.begin();
372 0 : it != virt_dns->virtual_dns_records_.end(); ++it) {
373 0 : if (((*it)->rec_.name + "." + virt_dns->GetDomainName() == item.name) && (*it)->src_ == VirtualDnsRecordConfig::Config) {
374 0 : return false;
375 : }
376 : }
377 : }
378 41 : DnsItems items;
379 41 : items.push_back(item);
380 41 : std::string view_name = config->GetViewName();
381 41 : return (SendUpdate(op, view_name, zone, items));
382 41 : }
383 :
384 41 : bool DnsManager::SendUpdate(BindUtil::Operation op, const std::string &view,
385 : const std::string &zone, DnsItems &items) {
386 :
387 41 : if (pending_map_.size() >= named_hi_watermark_) {
388 0 : DNS_OPERATIONAL_LOG(
389 : g_vns_constants.CategoryNames.find(Category::DNSAGENT)->second,
390 : SandeshLevel::SYS_NOTICE, "Bind named Send Throttled");
391 :
392 0 : named_send_throttled_ = true;
393 0 : return false;
394 : }
395 :
396 41 : uint16_t xid = GetTransId();
397 41 : return (AddPendingList(xid, view, zone, items, op));
398 : }
399 :
400 0 : void DnsManager::SendRetransmit(uint16_t xid, BindUtil::Operation op,
401 : const std::string &view,
402 : const std::string &zone, DnsItems &items,
403 : uint32_t retransmit_count) {
404 :
405 0 : uint8_t *pkt = new uint8_t[BindResolver::max_pkt_size];
406 0 : int len = BindUtil::BuildDnsUpdate(pkt, op, xid, view, zone, items);
407 0 : if (BindResolver::Resolver()->DnsSend(pkt, 0, len)) {
408 0 : DNS_BIND_TRACE(DnsBindTrace,
409 : "DNS transmit sent for DNS record; xid = " <<
410 : xid << "; View = " << view << "; Zone = " << zone << "; " <<
411 : DnsItemsToString(items) << " Retry = " <<
412 : retransmit_count);
413 : }
414 0 : }
415 :
416 0 : void DnsManager::UpdateAll() {
417 :
418 0 : if (!bind_status_.IsUp()) {
419 0 : return;
420 : }
421 :
422 0 : if (!end_of_config_) {
423 0 : return;
424 : }
425 :
426 : // Start dumping records to named
427 0 : named_send_throttled_ = false;
428 :
429 0 : VirtualDnsConfig::DataMap vmap = VirtualDnsConfig::GetVirtualDnsMap();
430 0 : for (VirtualDnsConfig::DataMap::iterator it = vmap.begin();
431 0 : it != vmap.end(); ++it) {
432 0 : VirtualDnsConfig *vdns = it->second;
433 0 : if (!vdns->GetDomainName().empty() &&
434 0 : CheckName(vdns->GetName(), vdns->GetDomainName())) {
435 0 : vdns->MarkNotified();
436 0 : DNS_BIND_TRACE(DnsBindTrace, "Virtual DNS <" << vdns->GetName() <<
437 : "> Add");
438 : } else {
439 0 : vdns->ClearNotified();
440 : }
441 : }
442 0 : NamedConfig *ncfg = NamedConfig::GetNamedConfigObject();
443 0 : ncfg->AddAllViews();
444 0 : for (VirtualDnsConfig::DataMap::iterator it = vmap.begin();
445 0 : it != vmap.end(); ++it) {
446 0 : VirtualDnsConfig *vdns = it->second;
447 0 : if (!vdns->IsNotified())
448 0 : continue;
449 0 : NotifyAllDnsRecords(vdns, DnsConfig::CFG_ADD);
450 : }
451 :
452 0 : DNS_OPERATIONAL_LOG(
453 : g_vns_constants.CategoryNames.find(Category::DNSAGENT)->second,
454 : SandeshLevel::SYS_NOTICE,
455 : "Bulk sync has been done (the DB has been synced with named)");
456 0 : }
457 :
458 0 : void DnsManager::HandleUpdateResponse(uint8_t *pkt, std::size_t length) {
459 : dns_flags flags;
460 : uint16_t xid;
461 0 : DnsItems ques, ans, auth, add;
462 0 : if (BindUtil::ParseDnsResponse(pkt, length, xid, flags,
463 : ques, ans, auth, add)) {
464 0 : if (flags.ret) {
465 0 : DNS_BIND_TRACE(DnsBindError, "Update failed : " <<
466 : BindUtil::DnsResponseCode(flags.ret) <<
467 : "; xid = " << xid);
468 : } else {
469 0 : DNS_BIND_TRACE(DnsBindTrace, "Update successful; xid = " << xid);
470 0 : pending_done_queue_.Enqueue(xid);
471 : }
472 : }
473 0 : delete [] pkt;
474 0 : }
475 :
476 0 : bool DnsManager::PendingDone(uint16_t xid) {
477 0 : DeletePendingList(xid);
478 0 : return true;
479 : }
480 :
481 0 : bool DnsManager::ResendRecordsinBatch() {
482 : static uint16_t start_index = 0;
483 0 : uint16_t sent_count = 0;
484 :
485 0 : PendingListMap::iterator it;
486 0 : if (start_index == 0) {
487 0 : it = pending_map_.upper_bound(start_index);
488 : } else {
489 0 : it = pending_map_.lower_bound(start_index);
490 : }
491 :
492 0 : for (; it != pending_map_.end() ; ) {
493 0 : if (it->second.retransmit_count > named_max_retransmissions_) {
494 0 : DNS_BIND_TRACE(DnsBindTrace, "DNS records max retransmits reached;"
495 : << "no more retransmission; xid = " << it->first);
496 :
497 0 : dp_pending_map_.insert(PendingListPair(it->first,
498 0 : PendingList(it->first, it->second.view,
499 0 : it->second.zone, it->second.items,
500 0 : it->second.op,
501 0 : it->second.retransmit_count)));
502 0 : ResetTransId(it->first);
503 0 : pending_map_.erase(it++);
504 : } else {
505 0 : sent_count++;
506 0 : it->second.retransmit_count++;
507 0 : SendRetransmit(it->first, it->second.op, it->second.view,
508 0 : it->second.zone, it->second.items,
509 0 : it->second.retransmit_count);
510 0 : it++;
511 : }
512 0 : if (sent_count >= record_send_count_) break;
513 : }
514 :
515 0 : if (it != pending_map_.end()) {
516 0 : start_index = it->first;
517 0 : pending_timer_->Reschedule(named_retransmission_interval_);
518 : /* Return true to trigger auto-restart of timer */
519 0 : return true;
520 : } else {
521 0 : if (pending_map_.size() == 0) {
522 0 : start_index = 0;
523 0 : return false;
524 : }
525 0 : start_index = pending_map_.begin()->first;
526 0 : pending_timer_->Reschedule(named_retransmission_interval_);
527 : }
528 :
529 0 : return true;
530 : }
531 :
532 41 : bool DnsManager::AddPendingList(uint16_t xid, const std::string &view,
533 : const std::string &zone, const DnsItems &items,
534 : BindUtil::Operation op) {
535 : // delete earlier entries for the same items
536 41 : UpdatePendingList(view, zone, items);
537 :
538 41 : std::pair<PendingListMap::iterator,bool> status;
539 82 : status = pending_map_.insert(PendingListPair(xid, PendingList(xid, view,
540 41 : zone, items, op)));
541 41 : if (status.second == false) {
542 0 : dp_pending_map_.insert(PendingListPair(xid, PendingList(xid, view,
543 : zone, items, op)));
544 0 : return true;
545 : } else {
546 41 : StartPendingTimer(named_retransmission_interval_*3);
547 41 : return true;
548 : }
549 : }
550 :
551 : // if there is an update for an item which is already in pending list,
552 : // remove it from the pending list
553 41 : void DnsManager::UpdatePendingList(const std::string &view,
554 : const std::string &zone,
555 : const DnsItems &items) {
556 41 : for (PendingListMap::iterator it = pending_map_.begin();
557 235 : it != pending_map_.end(); ) {
558 262 : if (it->second.view == view &&
559 262 : it->second.zone == zone &&
560 63 : it->second.items == items) {
561 18 : ResetTransId(it->first);
562 18 : pending_map_.erase(it++);
563 : } else {
564 176 : it++;
565 : }
566 : }
567 41 : }
568 :
569 0 : void DnsManager::DeletePendingList(uint16_t xid) {
570 0 : ResetTransId(xid);
571 0 : pending_map_.erase(xid);
572 0 : if (pending_map_.size() <= named_lo_watermark_) {
573 0 : if (named_send_throttled_) {
574 0 : DNS_OPERATIONAL_LOG(
575 : g_vns_constants.CategoryNames.find(Category::DNSAGENT)->second,
576 : SandeshLevel::SYS_NOTICE, "BIND named Send UnThrottled");
577 :
578 0 : named_send_throttled_ = false;
579 0 : NotifyThrottledDnsRecords();
580 : }
581 : }
582 0 : }
583 :
584 0 : void DnsManager::ClearPendingList() {
585 0 : pending_map_.clear();
586 0 : }
587 :
588 : // Remove entries from pending list, upon a view delete
589 11 : void DnsManager::PendingListViewDelete(const VirtualDnsConfig *config) {
590 11 : for (PendingListMap::iterator it = pending_map_.begin();
591 48 : it != pending_map_.end(); ) {
592 37 : if (it->second.view == config->GetViewName()) {
593 23 : ResetTransId(it->first);
594 23 : pending_map_.erase(it++);
595 : } else {
596 14 : it++;
597 : }
598 : }
599 11 : }
600 :
601 57 : bool DnsManager::CheckZoneDelete(ZoneList &zones, PendingList &pend) {
602 172 : for (uint32_t i = 0; i < zones.size(); i++) {
603 115 : if (zones[i] == pend.zone)
604 0 : return true;
605 : }
606 57 : return false;
607 : }
608 :
609 : // Remove entries from pending list, upon a zone delete
610 29 : void DnsManager::PendingListZoneDelete(const Subnet &subnet,
611 : const VirtualDnsConfig *config) {
612 29 : ZoneList zones;
613 29 : subnet.GetReverseZones(zones);
614 :
615 29 : for (PendingListMap::iterator it = pending_map_.begin();
616 236 : it != pending_map_.end(); ) {
617 264 : if (it->second.view == config->GetViewName() &&
618 57 : CheckZoneDelete(zones, it->second)) {
619 0 : ResetTransId(it->first);
620 0 : pending_map_.erase(it++);
621 : } else {
622 207 : it++;
623 : }
624 : }
625 29 : }
626 :
627 41 : void DnsManager::StartPendingTimer(int msec) {
628 41 : if (!pending_timer_->running()) {
629 5 : pending_timer_->Start(msec,
630 : boost::bind(&DnsManager::PendingTimerExpiry, this));
631 : }
632 41 : }
633 :
634 0 : void DnsManager::CancelPendingTimer() {
635 0 : pending_timer_->Cancel();
636 0 : }
637 :
638 0 : bool DnsManager::PendingTimerExpiry() {
639 0 : return ResendRecordsinBatch();
640 : }
641 :
642 0 : void DnsManager::NotifyThrottledDnsRecords() {
643 :
644 0 : if (!end_of_config_)
645 0 : return;
646 :
647 0 : if (!bind_status_.IsUp())
648 0 : return;
649 :
650 0 : VirtualDnsConfig::DataMap vmap = VirtualDnsConfig::GetVirtualDnsMap();
651 0 : for (VirtualDnsConfig::DataMap::iterator it = vmap.begin();
652 0 : it != vmap.end(); ++it) {
653 0 : VirtualDnsConfig *vdns = it->second;
654 0 : if (!vdns->IsNotified())
655 0 : continue;
656 :
657 0 : for (VirtualDnsConfig::VDnsRec::const_iterator it =
658 0 : vdns->virtual_dns_records_.begin();
659 0 : it != vdns->virtual_dns_records_.end(); ++it) {
660 0 : if ((*it)->IsValid()) {
661 0 : if (!((*it)->IsNotified())) {
662 0 : DnsRecord(*it, DnsConfig::CFG_ADD);
663 : }
664 : }
665 : }
666 : }
667 0 : }
668 :
669 0 : void DnsManager::NotifyAllDnsRecords(const VirtualDnsConfig *config,
670 : DnsConfig::DnsConfigEvent ev) {
671 :
672 0 : if (!end_of_config_)
673 0 : return;
674 :
675 0 : if (!bind_status_.IsUp())
676 0 : return;
677 :
678 0 : for (VirtualDnsConfig::VDnsRec::const_iterator it =
679 0 : config->virtual_dns_records_.begin();
680 0 : it != config->virtual_dns_records_.end(); ++it) {
681 : // ClearNotified() to all DnsRecords
682 0 : (*it)->ClearNotified();
683 0 : if ((*it)->IsValid())
684 0 : DnsRecord(*it, ev);
685 : }
686 : }
687 :
688 8 : void DnsManager::NotifyReverseDnsRecords(const VirtualDnsConfig *config,
689 : DnsConfig::DnsConfigEvent ev,
690 : bool notify) {
691 :
692 8 : if (!end_of_config_)
693 0 : return;
694 :
695 8 : if (!bind_status_.IsUp())
696 0 : return;
697 :
698 8 : for (VirtualDnsConfig::VDnsRec::const_iterator it =
699 8 : config->virtual_dns_records_.begin();
700 24 : it != config->virtual_dns_records_.end(); ++it) {
701 16 : DnsItem item = (*it)->GetRecord();
702 16 : if (item.type == DNS_PTR_RECORD) {
703 0 : (*it)->ClearNotified();
704 0 : if ((*it)->IsValid() && notify) {
705 0 : DnsRecord(*it, ev);
706 : }
707 : }
708 16 : }
709 : }
710 :
711 41 : inline uint16_t DnsManager::GetTransId() {
712 41 : return (idx_.AllocIndex());
713 : }
714 :
715 41 : inline void DnsManager::ResetTransId(uint16_t xid) {
716 41 : idx_.FreeIndex(xid);
717 41 : }
718 :
719 60 : inline bool DnsManager::CheckName(std::string rec_name, std::string name) {
720 60 : if (BindUtil::HasSpecialChars(name)) {
721 0 : DNS_CONFIGURATION_LOG(
722 : g_vns_constants.CategoryNames.find(Category::DNSAGENT)->second,
723 : SandeshLevel::SYS_ERR,
724 : "Invalid DNS Name - cannot use special characters in DNS name",
725 : rec_name, name);
726 0 : return false;
727 : }
728 60 : return true;
729 : }
730 :
731 0 : void DnsManager::BindEventHandler(BindStatus::Event event) {
732 0 : switch (event) {
733 0 : case BindStatus::Up: {
734 :
735 0 : DNS_OPERATIONAL_LOG(
736 : g_vns_constants.CategoryNames.find(Category::DNSAGENT)->second,
737 : SandeshLevel::SYS_NOTICE, "BIND named up; DNS is operational");
738 0 : ClearDeportedPendingList();
739 0 : UpdateAll();
740 0 : break;
741 : }
742 :
743 0 : case BindStatus::Down: {
744 :
745 0 : DNS_OPERATIONAL_LOG(
746 : g_vns_constants.CategoryNames.find(Category::DNSAGENT)->second,
747 : SandeshLevel::SYS_NOTICE, "BIND named down; DNS is not operational");
748 0 : NamedConfig *ncfg = NamedConfig::GetNamedConfigObject();
749 0 : ncfg->Reset();
750 0 : ClearPendingList();
751 0 : break;
752 : }
753 :
754 0 : default:
755 0 : assert(0);
756 : }
757 0 : }
758 :
759 0 : void DnsManager::StartEndofConfigTimer() {
760 0 : if (!end_of_config_check_timer_->running()) {
761 0 : end_of_config_check_timer_->Start(kEndOfConfigCheckTime,
762 : boost::bind(&DnsManager::EndofConfigTimerExpiry, this));
763 : }
764 0 : }
765 :
766 0 : void DnsManager::CancelEndofConfigTimer() {
767 0 : end_of_config_check_timer_->Cancel();
768 0 : }
769 :
770 0 : bool DnsManager::EndofConfigTimerExpiry() {
771 0 : bool current_config_state = IsEndOfConfig();
772 0 : if ((current_config_state != end_of_config_) && current_config_state) {
773 0 : end_of_config_ = current_config_state;
774 0 : UpdateAll();
775 : } else {
776 0 : end_of_config_ = current_config_state;
777 : }
778 0 : return true;
779 : }
780 :
781 0 : void SandeshError(const std::string &msg, const std::string &context) {
782 0 : ErrorResp *resp = new ErrorResp();
783 0 : resp->set_resp(msg);
784 0 : resp->set_context(context);
785 0 : resp->Response();
786 0 : }
787 :
788 0 : void ShowVirtualDnsServers::HandleRequest() const {
789 0 : DnsManager *dns_manager = Dns::GetDnsManager();
790 0 : if(dns_manager) {
791 0 : dns_manager->VdnsServersMsgHandler("", context());
792 : } else {
793 0 : SandeshError("Invalid Request No DnsManager Object", context());
794 : }
795 0 : }
796 :
797 0 : void DnsManager::MakeSandeshPageReq(PageReqData *req, VirtualDnsConfig::DataMap &vdns,
798 : VirtualDnsConfig::DataMap::iterator vdns_it,
799 : VirtualDnsConfig::DataMap::iterator vdns_iter,
800 : const std::string &key, const std::string &req_name) const {
801 : // Set table size
802 0 : req->set_table_size(vdns.size());
803 :
804 : //Next page link
805 0 : if(vdns_iter != vdns.end()) {
806 0 : req->set_next_page(vdns_iter->first + req_name);
807 : }
808 :
809 : // First page link
810 0 : if(vdns.size() != 0) {
811 0 : req->set_first_page((vdns.begin())->first + req_name);
812 : }
813 :
814 : // Set Entries
815 0 : uint16_t start_entry=0, end_entry=0;
816 0 : std::stringstream ss1, ss2;
817 0 : if(vdns.size() != 0) {
818 0 : start_entry = std::distance(vdns.begin(), vdns_it);
819 0 : start_entry++;
820 0 : if(start_entry != vdns.size()) {
821 0 : end_entry = std::distance(vdns.begin(), --vdns_iter);
822 0 : end_entry++;
823 : } else {
824 0 : end_entry = start_entry;
825 : }
826 : }
827 0 : ss1 << start_entry;
828 0 : ss2 << end_entry;
829 0 : req->set_entries(ss1.str() + " - " + ss2.str());
830 :
831 : // Previous page link
832 0 : if(vdns_it != vdns.begin()) {
833 0 : for (int i=0; i < (DnsManager::max_records_per_sandesh); i++) {
834 0 : vdns_it--;
835 0 : if(vdns_it == vdns.begin())
836 0 : break;
837 : }
838 0 : req->set_prev_page(vdns_it->first + req_name);
839 : }
840 :
841 : // Set link to show all entries in a single page
842 0 : req->set_all("AllEntries" + req_name);
843 0 : }
844 :
845 0 : void DnsManager::VdnsServersMsgHandler(const std::string &key,
846 : const std::string &context) const {
847 : VirtualDnsServersResponse *resp;
848 0 : uint16_t count = 0;
849 0 : uint16_t sandesh_msg_limit = DnsManager::max_records_per_sandesh;
850 0 : VirtualDnsConfig::DataMap vdns = VirtualDnsConfig::GetVirtualDnsMap();
851 0 : VirtualDnsConfig::DataMap::iterator vdns_it, vdns_iter;
852 0 : std::vector<VirtualDnsServersSandesh> vdns_list_sandesh;
853 0 : if(key == "AllEntries") {
854 0 : sandesh_msg_limit = vdns.size();
855 0 : vdns_it = vdns.begin();
856 0 : } else if(key != "") {
857 0 : vdns_it = vdns.lower_bound(key);
858 : } else {
859 0 : vdns_it = vdns.begin();
860 : }
861 :
862 0 : for (vdns_iter= vdns_it; vdns_iter != vdns.end(); ++vdns_iter) {
863 :
864 0 : if (count++ == sandesh_msg_limit) {
865 0 : break;
866 : }
867 0 : VirtualDnsConfig *vdns_config = vdns_iter->second;
868 0 : VirtualDnsServersSandesh vdns_sandesh;
869 0 : VirtualDnsTraceData vdns_trace_data;
870 0 : vdns_config->VirtualDnsTrace(vdns_trace_data);
871 :
872 0 : std::vector<std::string> net_list_sandesh;
873 0 : for (VirtualDnsConfig::IpamList::iterator ipam_iter =
874 0 : vdns_config->ipams_.begin();
875 0 : ipam_iter != vdns_config->ipams_.end(); ++ipam_iter) {
876 0 : IpamConfig *ipam = *ipam_iter;
877 0 : const IpamConfig::VnniList &vnni = ipam->GetVnniList();
878 0 : for (IpamConfig::VnniList::iterator vnni_it = vnni.begin();
879 0 : vnni_it != vnni.end(); ++vnni_it) {
880 0 : Subnets &subnets = (*vnni_it)->GetSubnets();
881 0 : for (unsigned int i = 0; i < subnets.size(); i++) {
882 0 : std::stringstream str;
883 0 : str << subnets[i].prefix.to_string();
884 0 : str << "/";
885 0 : str << subnets[i].plen;
886 0 : net_list_sandesh.push_back(str.str());
887 0 : }
888 : }
889 : }
890 :
891 0 : vdns_sandesh.set_virtual_dns(vdns_trace_data);
892 0 : vdns_sandesh.set_records(vdns_config->GetName());
893 0 : vdns_sandesh.set_num_records(vdns_config->virtual_dns_records_.size());
894 0 : vdns_sandesh.set_subnets(net_list_sandesh);
895 0 : vdns_list_sandesh.push_back(vdns_sandesh);
896 0 : }
897 :
898 0 : resp = new VirtualDnsServersResponse();
899 0 : resp->set_context(context);
900 0 : resp->set_virtual_dns_servers(vdns_list_sandesh);
901 0 : resp->set_more(true);
902 0 : resp->Response();
903 :
904 0 : Pagination *page = new Pagination();
905 0 : PageReqData req;
906 0 : MakeSandeshPageReq(&req, vdns, vdns_it, vdns_iter, key, " VdnsServersReq");
907 0 : page->set_context(context);
908 0 : page->set_req(req);
909 0 : page->Response();
910 :
911 0 : }
912 :
913 0 : void ShowDnsConfig::HandleRequest() const {
914 0 : DnsManager *dns_manager = Dns::GetDnsManager();
915 0 : if(dns_manager) {
916 0 : dns_manager->DnsConfigMsgHandler("", context());
917 : } else {
918 0 : SandeshError("Invalid Request No DnsManager Object", context());
919 : }
920 0 : }
921 :
922 0 : void DnsManager::DnsConfigMsgHandler(const std::string &key,
923 : const std::string &context) const {
924 0 : DnsConfigResponse *resp = new DnsConfigResponse();
925 0 : uint16_t count = 0;
926 0 : uint16_t sandesh_msg_limit = DnsManager::max_records_per_sandesh;
927 0 : VirtualDnsConfig::DataMap vdns = VirtualDnsConfig::GetVirtualDnsMap();
928 0 : VirtualDnsConfig::DataMap::iterator vdns_it, vdns_iter;
929 0 : std::vector<VirtualDnsSandesh> vdns_list_sandesh;
930 0 : if(key == "AllEntries") {
931 0 : sandesh_msg_limit = vdns.size();
932 0 : vdns_it = vdns.begin();
933 0 : } else if(key != "") {
934 0 : vdns_it = vdns.lower_bound(key);
935 : } else {
936 0 : vdns_it = vdns.begin();
937 : }
938 :
939 0 : for (vdns_iter = vdns_it; vdns_iter != vdns.end(); ++vdns_iter) {
940 0 : if (count++ == sandesh_msg_limit) {
941 0 : break;
942 : }
943 0 : VirtualDnsConfig *vdns_config = vdns_iter->second;
944 0 : VirtualDnsSandesh vdns_sandesh;
945 0 : VirtualDnsTraceData vdns_trace_data;
946 0 : vdns_config->VirtualDnsTrace(vdns_trace_data);
947 :
948 0 : std::vector<VirtualDnsRecordTraceData> rec_list_sandesh;
949 0 : for (VirtualDnsConfig::VDnsRec::iterator rec_it =
950 0 : vdns_config->virtual_dns_records_.begin();
951 0 : rec_it != vdns_config->virtual_dns_records_.end(); ++rec_it) {
952 0 : VirtualDnsRecordTraceData rec_trace_data;
953 0 : (*rec_it)->VirtualDnsRecordTrace(rec_trace_data);
954 0 : rec_list_sandesh.push_back(rec_trace_data);
955 0 : }
956 :
957 0 : std::vector<std::string> net_list_sandesh;
958 0 : for (VirtualDnsConfig::IpamList::iterator ipam_iter =
959 0 : vdns_config->ipams_.begin();
960 0 : ipam_iter != vdns_config->ipams_.end(); ++ipam_iter) {
961 0 : IpamConfig *ipam = *ipam_iter;
962 0 : const IpamConfig::VnniList &vnni = ipam->GetVnniList();
963 0 : for (IpamConfig::VnniList::iterator vnni_it = vnni.begin();
964 0 : vnni_it != vnni.end(); ++vnni_it) {
965 0 : Subnets &subnets = (*vnni_it)->GetSubnets();
966 0 : for (unsigned int i = 0; i < subnets.size(); i++) {
967 0 : std::stringstream str;
968 0 : str << subnets[i].prefix.to_string();
969 0 : str << "/";
970 0 : str << subnets[i].plen;
971 0 : net_list_sandesh.push_back(str.str());
972 0 : }
973 : }
974 : }
975 :
976 0 : vdns_sandesh.set_virtual_dns(vdns_trace_data);
977 0 : vdns_sandesh.set_records(rec_list_sandesh);
978 0 : vdns_sandesh.set_subnets(net_list_sandesh);
979 0 : vdns_list_sandesh.push_back(vdns_sandesh);
980 0 : }
981 :
982 0 : resp->set_context(context);
983 0 : resp->set_virtual_dns(vdns_list_sandesh);
984 0 : resp->set_more(true);
985 0 : resp->Response();
986 :
987 0 : Pagination *page = new Pagination();
988 0 : PageReqData req;
989 0 : MakeSandeshPageReq(&req, vdns, vdns_it, vdns_iter, key, " DnsConfigReq");
990 0 : page->set_context(context);
991 0 : page->set_req(req);
992 0 : page->Response();
993 0 : }
994 :
995 0 : void ShowVirtualDnsRecords::HandleRequest() const {
996 0 : DnsManager *dns_manager = Dns::GetDnsManager();
997 0 : if(dns_manager) {
998 0 : dns_manager->VdnsRecordsMsgHandler(get_virtual_dns_server(), context());
999 : } else {
1000 0 : SandeshError("Invalid Request No DnsManager Object", context());
1001 : }
1002 0 : }
1003 :
1004 0 : void DnsManager::VdnsRecordsMsgHandler(const std::string &key,
1005 : const std::string &context, bool show_all) const {
1006 0 : VirtualDnsRecordsResponse *resp = new VirtualDnsRecordsResponse();
1007 0 : VirtualDnsConfig::DataMap vdns = VirtualDnsConfig::GetVirtualDnsMap();
1008 :
1009 0 : std::stringstream ss(key);
1010 0 : std::stringstream str;
1011 0 : std::string vdns_server, next_iterator;
1012 0 : VirtualDnsRecordConfig *next_iterator_key = NULL;
1013 0 : std::getline(ss, vdns_server, '@');
1014 0 : std::getline(ss, next_iterator);
1015 0 : uint16_t sandesh_msg_limit = DnsManager::max_records_per_sandesh;
1016 0 : if (!next_iterator.empty()) {
1017 0 : std::stringstream next_iter(next_iterator);
1018 0 : uint64_t value = 0;
1019 0 : next_iter >> value;
1020 0 : next_iterator_key = (VirtualDnsRecordConfig *) value;
1021 0 : }
1022 0 : std::vector<VirtualDnsRecordTraceData> rec_list_sandesh;
1023 0 : VirtualDnsConfig::VDnsRec::iterator rec_it, rec_it1;
1024 0 : VirtualDnsConfig::DataMap::iterator vdns_it = vdns.find(vdns_server);
1025 0 : if (vdns_it != vdns.end()) {
1026 0 : VirtualDnsConfig *vdns_config = vdns_it->second;
1027 0 : uint16_t count = 0;
1028 0 : uint16_t size = vdns_config->virtual_dns_records_.size();
1029 0 : if(show_all) {
1030 0 : rec_it1 = vdns_config->virtual_dns_records_.begin();
1031 0 : sandesh_msg_limit = size;
1032 : } else {
1033 0 : rec_it1 = vdns_config->virtual_dns_records_.lower_bound(next_iterator_key);
1034 : }
1035 0 : for(rec_it = rec_it1;
1036 0 : rec_it != vdns_config->virtual_dns_records_.end(); ++rec_it) {
1037 0 : VirtualDnsRecordTraceData rec_trace_data;
1038 0 : (*rec_it)->VirtualDnsRecordTrace(rec_trace_data);
1039 0 : rec_list_sandesh.push_back(rec_trace_data);
1040 0 : if (++count == sandesh_msg_limit) {
1041 0 : if (++rec_it == vdns_config->virtual_dns_records_.end())
1042 0 : break;
1043 0 : uint64_t value = (uint64_t)(*rec_it);
1044 0 : str << vdns_server << "@" << value;
1045 0 : break;
1046 : }
1047 0 : }
1048 :
1049 0 : resp->set_context(context);
1050 0 : resp->set_virtual_dns_server(vdns_server);
1051 0 : resp->set_records(rec_list_sandesh);
1052 0 : resp->set_more(true);
1053 0 : resp->Response();
1054 :
1055 0 : Pagination *page = new Pagination();
1056 0 : PageReqData req;
1057 :
1058 : // Set table size
1059 0 : req.set_table_size(size);
1060 :
1061 : //Next page link
1062 0 : if(rec_it != vdns_config->virtual_dns_records_.end()) {
1063 0 : req.set_next_page(str.str() + " VdnsRecordsReq");
1064 : }
1065 :
1066 : // First page link
1067 0 : if(size != 0) {
1068 0 : std::stringstream str;
1069 0 : uint64_t value = (uint64_t)(*(vdns_config->virtual_dns_records_.begin()));
1070 0 : str << vdns_server << "@" << value;
1071 0 : req.set_first_page(str.str() + " VdnsRecordsReq");
1072 0 : }
1073 :
1074 : // Set Entries
1075 0 : int start_entry=0, end_entry=0;
1076 0 : std::stringstream ss1, ss2;
1077 0 : if( size != 0) {
1078 0 : start_entry = std::distance(vdns_config->virtual_dns_records_.begin(), rec_it1);
1079 0 : start_entry++;
1080 0 : if(start_entry != size) {
1081 0 : end_entry = std::distance(vdns_config->virtual_dns_records_.begin(), --rec_it);
1082 0 : end_entry++;
1083 : } else {
1084 0 : end_entry = start_entry;
1085 : }
1086 : }
1087 :
1088 0 : ss1 << start_entry;
1089 0 : ss2 << end_entry;
1090 0 : req.set_entries(ss1.str() + " - " + ss2.str());
1091 :
1092 : // Previous page link
1093 0 : if(rec_it1 != vdns_config->virtual_dns_records_.begin()) {
1094 0 : for (int i=0; i < (sandesh_msg_limit); i++) {
1095 0 : rec_it1--;
1096 0 : if(rec_it1 == vdns_config->virtual_dns_records_.begin())
1097 0 : break;
1098 : }
1099 0 : std::stringstream str;
1100 0 : uint64_t value = (uint64_t)(*rec_it1);
1101 0 : str << vdns_server << "@" << value;
1102 0 : req.set_prev_page(str.str() + " VdnsRecordsReq");
1103 0 : }
1104 :
1105 : // Set link to show all entries in a single page
1106 0 : std::stringstream str;
1107 0 : uint64_t value = 0;
1108 0 : str << vdns_server << "@" << value;
1109 0 : req.set_all(str.str() + " AllEntriesVdnsRecordsReq");
1110 :
1111 0 : page->set_context(context);
1112 0 : page->set_req(req);
1113 0 : page->Response();
1114 :
1115 0 : } else {
1116 0 : SandeshError("Invalid Request Enter Vdns Server Name", context);
1117 0 : delete resp;
1118 : }
1119 0 : }
1120 :
1121 0 : void ShowBindPendingList::HandleRequest() const {
1122 0 : DnsManager *dns_manager = Dns::GetDnsManager();
1123 0 : if(dns_manager) {
1124 0 : dns_manager->BindPendingMsgHandler("", context());
1125 : } else {
1126 0 : SandeshError("Invalid Request No DnsManager Object", context());
1127 : }
1128 0 : }
1129 :
1130 0 : void DnsManager::BindPendingMsgHandler(const std::string &key,
1131 : const std::string &context) const {
1132 0 : BindPendingListResponse *resp = new BindPendingListResponse();
1133 0 : DnsManager *dns_manager = Dns::GetDnsManager();
1134 0 : if (dns_manager) {
1135 0 : uint16_t count =0;
1136 0 : uint16_t index=0;
1137 0 : stringToInteger(key, index);
1138 0 : uint16_t sandesh_msg_limit = DnsManager::max_records_per_sandesh;
1139 : DnsManager::PendingListMap map =
1140 0 : dns_manager->GetDeportedPendingListMap();
1141 0 : uint16_t size = map.size();
1142 : std::vector<PendingListEntry> &pending_list =
1143 0 : const_cast<std::vector<PendingListEntry>&>(resp->get_data());
1144 0 : DnsManager::PendingListMap::iterator map_it, map_iter;
1145 0 : if(key == "AllEntries") {
1146 0 : sandesh_msg_limit = size;
1147 0 : map_it = map.begin();
1148 : }
1149 0 : else if(key != "") {
1150 0 : map_it = map.lower_bound(index);
1151 : }
1152 : else {
1153 0 : map_it = map.begin();
1154 : }
1155 :
1156 0 : for (map_iter = map_it; map_iter!= map.end(); ++map_iter) {
1157 0 : if (count++ == sandesh_msg_limit) {
1158 0 : break;
1159 : }
1160 0 : PendingListEntry entry;
1161 0 : entry.set_xid(map_iter->second.xid);
1162 0 : entry.set_view(map_iter->second.view);
1163 0 : entry.set_zone(map_iter->second.zone);
1164 0 : entry.set_retry_count(map_iter->second.retransmit_count);
1165 0 : entry.set_items(DnsItemsToString(map_iter->second.items));
1166 :
1167 0 : pending_list.push_back(entry);
1168 0 : }
1169 :
1170 0 : resp->set_context(context);
1171 0 : resp->set_more(true);
1172 0 : resp->Response();
1173 :
1174 0 : Pagination *page = new Pagination();
1175 0 : PageReqData req;
1176 :
1177 : // Set table size
1178 0 : req.set_table_size(size);
1179 :
1180 : //Next page link
1181 0 : if(map_iter != map.end()) {
1182 0 : std::stringstream ss;
1183 0 : ss << map_iter->first;
1184 0 : req.set_next_page(ss.str() + " BindPendingListReq");
1185 0 : }
1186 :
1187 : // First page link
1188 0 : if(size != 0) {
1189 0 : std::stringstream ss;
1190 0 : ss << map.begin()->first;
1191 0 : req.set_first_page(ss.str()+ " BindPendingListReq");
1192 0 : }
1193 :
1194 : // Set Entries
1195 0 : int start_entry=0, end_entry=0;
1196 0 : std::stringstream ss1, ss2;
1197 0 : if(size != 0) {
1198 0 : start_entry = std::distance(map.begin(), map_it);
1199 0 : start_entry++;
1200 0 : if(start_entry != size) {
1201 0 : end_entry = std::distance(map.begin(), --map_iter);
1202 0 : end_entry++;
1203 : } else {
1204 0 : end_entry = start_entry;
1205 : }
1206 :
1207 : }
1208 0 : ss1 << start_entry;
1209 0 : ss2 << end_entry;
1210 0 : req.set_entries(ss1.str() + " - " + ss2.str());
1211 :
1212 : // Previous page link
1213 0 : if(map_it != map.begin()) {
1214 0 : for (int i=0; i < (sandesh_msg_limit); i++) {
1215 0 : map_it--;
1216 0 : if(map_it == map.begin())
1217 0 : break;
1218 : }
1219 0 : std::stringstream ss;
1220 0 : ss << map_it->first;
1221 0 : req.set_prev_page(ss.str() + " BindPendingListReq");
1222 0 : }
1223 :
1224 : // Set link to show all entries in a single page
1225 0 : req.set_all("AllEntries BindPendingListReq");
1226 :
1227 0 : page->set_context(context);
1228 0 : page->set_req(req);
1229 0 : page->Response();
1230 :
1231 0 : } else {
1232 0 : SandeshError("Invalid Request No DnsManager Object ", context);
1233 0 : delete resp;
1234 : }
1235 0 : }
1236 :
1237 0 : void PageReq::HandleRequest() const {
1238 0 : string req_name, search_key;
1239 0 : vector<string> tokens;
1240 0 : boost::split(tokens, get_key(), boost::is_any_of(" "));
1241 0 : DnsManager *dns_manager = Dns::GetDnsManager();
1242 0 : if(dns_manager && (tokens.size() == 2)) {
1243 0 : search_key = tokens[0];
1244 0 : req_name = tokens[1];
1245 0 : if(req_name == "VdnsServersReq") {
1246 0 : dns_manager->VdnsServersMsgHandler(search_key, context());
1247 0 : } else if(req_name == "DnsConfigReq") {
1248 0 : dns_manager->DnsConfigMsgHandler(search_key, context());
1249 0 : } else if(req_name == "VdnsRecordsReq") {
1250 0 : dns_manager->VdnsRecordsMsgHandler(search_key, context());
1251 0 : } else if(req_name == "AllEntriesVdnsRecordsReq") {
1252 0 : dns_manager->VdnsRecordsMsgHandler(search_key, context(), true);
1253 0 : } else if (req_name == "BindPendingListReq") {
1254 0 : dns_manager->BindPendingMsgHandler(search_key, context());
1255 : } else {
1256 0 : SandeshError("Invalid Request", context());
1257 : }
1258 : } else {
1259 0 : SandeshError("Invalid Request", context());
1260 : }
1261 0 : }
1262 :
1263 0 : void ShowGlobalQosConfig::HandleRequest() const {
1264 0 : GlobalQosConfigResponse *resp = new GlobalQosConfigResponse();
1265 0 : GlobalQosConfig *obj = GlobalQosConfig::Find("");
1266 0 : resp->set_control_dscp(obj->control_dscp_);
1267 0 : resp->set_analytics_dscp(obj->analytics_dscp_);
1268 0 : resp->set_context(context());
1269 0 : resp->set_more(false);
1270 0 : resp->Response();
1271 0 : }
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