blob: 8c4d2aef4869234d01f0de1be82bfed5403a61ff [file] [log] [blame]
Patrick Venturef18bf832018-10-26 18:14:00 -07001#include "config.h"
2
3#include "log_manager.hpp"
4
5#include "elog_entry.hpp"
6#include "elog_meta.hpp"
7#include "elog_serialize.hpp"
Matt Spinler99c2b402019-05-23 14:29:16 -05008#include "extensions.hpp"
Matt Spinlerf61f2922020-06-23 11:32:49 -05009#include "util.hpp"
Patrick Venturef18bf832018-10-26 18:14:00 -070010
Adriana Kobylak5f4247f2018-03-15 10:27:05 -050011#include <poll.h>
Adriana Kobylak5f4247f2018-03-15 10:27:05 -050012#include <sys/inotify.h>
Adriana Kobylak1db1bd32016-10-10 11:39:20 -050013#include <systemd/sd-bus.h>
Adriana Kobylakd311bc82016-10-16 09:54:40 -050014#include <systemd/sd-journal.h>
Adriana Kobylak5f4247f2018-03-15 10:27:05 -050015#include <unistd.h>
Patrick Venturef18bf832018-10-26 18:14:00 -070016
Matt Spinler99c2b402019-05-23 14:29:16 -050017#include <cassert>
Patrick Venturef18bf832018-10-26 18:14:00 -070018#include <chrono>
19#include <cstdio>
Patrick Venture30047bf2018-11-01 18:52:15 -070020#include <cstring>
Patrick Venturef18bf832018-10-26 18:14:00 -070021#include <fstream>
Patrick Venture30047bf2018-11-01 18:52:15 -070022#include <functional>
Patrick Venturef18bf832018-10-26 18:14:00 -070023#include <future>
24#include <iostream>
Patrick Venture30047bf2018-11-01 18:52:15 -070025#include <map>
Patrick Williams5f285c52021-07-27 21:25:38 -050026#include <phosphor-logging/lg2.hpp>
Patrick Venturef18bf832018-10-26 18:14:00 -070027#include <sdbusplus/vtable.hpp>
28#include <set>
29#include <string>
30#include <vector>
Andrew Geisslerf6126a72020-05-08 10:41:09 -050031#include <xyz/openbmc_project/State/Host/server.hpp>
Deepak Kodihallia87c1572017-02-28 07:40:34 -060032
Adriana Kobylak5f4247f2018-03-15 10:27:05 -050033using namespace std::chrono;
Andrew Geisslerc0c500e2020-03-26 11:08:56 -050034using sdbusplus::exception::SdBusError;
Patrick Williams5f285c52021-07-27 21:25:38 -050035extern const std::map<
36 phosphor::logging::metadata::Metadata,
37 std::function<phosphor::logging::metadata::associations::Type>>
Patrick Venturef18bf832018-10-26 18:14:00 -070038 meta;
Adriana Kobylak1db1bd32016-10-10 11:39:20 -050039
Adriana Kobylak8f7941e2016-11-14 14:46:23 -060040namespace phosphor
41{
42namespace logging
43{
Nagaraju Goruganti05aae8b2017-08-30 07:56:12 -050044namespace internal
45{
Deepak Kodihalli6fd9dc42018-04-03 02:08:42 -050046inline auto getLevel(const std::string& errMsg)
47{
48 auto reqLevel = Entry::Level::Error; // Default to Error
49
50 auto levelmap = g_errLevelMap.find(errMsg);
Nagaraju Gorugantif8a5a792017-10-13 08:09:52 -050051 if (levelmap != g_errLevelMap.end())
Marri Devender Rao7656fba2017-08-06 05:42:52 -050052 {
Deepak Kodihalli6fd9dc42018-04-03 02:08:42 -050053 reqLevel = static_cast<Entry::Level>(levelmap->second);
Marri Devender Rao7656fba2017-08-06 05:42:52 -050054 }
55
Deepak Kodihalli6fd9dc42018-04-03 02:08:42 -050056 return reqLevel;
57}
58
Nagaraju Goruganti477b7312018-06-25 23:28:58 -050059int Manager::getRealErrSize()
60{
61 return realErrors.size();
62}
63
64int Manager::getInfoErrSize()
65{
66 return infoErrors.size();
67}
68
Lei YUb50c7052021-01-21 16:02:26 +080069uint32_t Manager::commit(uint64_t transactionId, std::string errMsg)
Deepak Kodihalli6fd9dc42018-04-03 02:08:42 -050070{
71 auto level = getLevel(errMsg);
72 _commit(transactionId, std::move(errMsg), level);
Lei YUb50c7052021-01-21 16:02:26 +080073 return entryId;
Deepak Kodihalli6fd9dc42018-04-03 02:08:42 -050074}
75
Lei YUb50c7052021-01-21 16:02:26 +080076uint32_t Manager::commitWithLvl(uint64_t transactionId, std::string errMsg,
77 uint32_t errLvl)
Deepak Kodihalli6fd9dc42018-04-03 02:08:42 -050078{
79 _commit(transactionId, std::move(errMsg),
80 static_cast<Entry::Level>(errLvl));
Lei YUb50c7052021-01-21 16:02:26 +080081 return entryId;
Deepak Kodihalli6fd9dc42018-04-03 02:08:42 -050082}
83
Patrick Williamsa5171972021-04-16 20:10:01 -050084void Manager::_commit(uint64_t transactionId [[maybe_unused]],
85 std::string&& errMsg, Entry::Level errLvl)
Deepak Kodihalli6fd9dc42018-04-03 02:08:42 -050086{
Patrick Williamsa5171972021-04-16 20:10:01 -050087 std::vector<std::string> additionalData{};
88
89 // When running as a test-case, the system may have a LOT of journal
90 // data and we may not have permissions to do some of the journal sync
91 // operations. Just skip over them.
William A. Kennington IIIb6b25572021-05-19 17:09:41 -070092 if (!IS_UNIT_TEST)
Adriana Kobylakd311bc82016-10-16 09:54:40 -050093 {
William A. Kennington IIIb6b25572021-05-19 17:09:41 -070094 constexpr const auto transactionIdVar = "TRANSACTION_ID";
95 // Length of 'TRANSACTION_ID' string.
96 constexpr const auto transactionIdVarSize =
97 std::strlen(transactionIdVar);
98 // Length of 'TRANSACTION_ID=' string.
99 constexpr const auto transactionIdVarOffset = transactionIdVarSize + 1;
Adriana Kobylakd311bc82016-10-16 09:54:40 -0500100
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700101 // Flush all the pending log messages into the journal
102 journalSync();
Adriana Kobylak7298dc22017-01-24 12:21:50 -0600103
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700104 sd_journal* j = nullptr;
105 int rc = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY);
Adriana Kobylakfbe88722017-02-22 16:49:59 -0600106 if (rc < 0)
Adriana Kobylak9aa7d782017-02-18 09:20:49 -0600107 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500108 lg2::error("Failed to open journal: {ERROR}", "ERROR",
109 strerror(-rc));
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700110 return;
Adriana Kobylakfbe88722017-02-22 16:49:59 -0600111 }
Adriana Kobylak9aa7d782017-02-18 09:20:49 -0600112
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700113 std::string transactionIdStr = std::to_string(transactionId);
114 std::set<std::string> metalist;
115 auto metamap = g_errMetaMap.find(errMsg);
116 if (metamap != g_errMetaMap.end())
Adriana Kobylakfbe88722017-02-22 16:49:59 -0600117 {
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700118 metalist.insert(metamap->second.begin(), metamap->second.end());
Adriana Kobylakfbe88722017-02-22 16:49:59 -0600119 }
120
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700121 // Add _PID field information in AdditionalData.
122 metalist.insert("_PID");
123
124 // Read the journal from the end to get the most recent entry first.
125 // The result from the sd_journal_get_data() is of the form
126 // VARIABLE=value.
127 SD_JOURNAL_FOREACH_BACKWARDS(j)
Adriana Kobylakfbe88722017-02-22 16:49:59 -0600128 {
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700129 const char* data = nullptr;
130 size_t length = 0;
131
132 // Look for the transaction id metadata variable
133 rc = sd_journal_get_data(j, transactionIdVar, (const void**)&data,
Patrick Venturef18bf832018-10-26 18:14:00 -0700134 &length);
Adriana Kobylak9aa7d782017-02-18 09:20:49 -0600135 if (rc < 0)
136 {
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700137 // This journal entry does not have the TRANSACTION_ID
138 // metadata variable.
Adriana Kobylak9aa7d782017-02-18 09:20:49 -0600139 continue;
140 }
141
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700142 // journald does not guarantee that sd_journal_get_data() returns
143 // NULL terminated strings, so need to specify the size to use to
144 // compare, use the returned length instead of anything that relies
145 // on NULL terminators like strlen(). The data variable is in the
146 // form of 'TRANSACTION_ID=1234'. Remove the TRANSACTION_ID
147 // characters plus the (=) sign to do the comparison. 'data +
148 // transactionIdVarOffset' will be in the form of '1234'. 'length -
149 // transactionIdVarOffset' will be the length of '1234'.
150 if ((length <= (transactionIdVarOffset)) ||
151 (transactionIdStr.compare(
152 0, transactionIdStr.size(), data + transactionIdVarOffset,
153 length - transactionIdVarOffset) != 0))
154 {
155 // The value of the TRANSACTION_ID metadata is not the requested
156 // transaction id number.
157 continue;
158 }
Adriana Kobylak9aa7d782017-02-18 09:20:49 -0600159
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700160 // Search for all metadata variables in the current journal entry.
161 for (auto i = metalist.cbegin(); i != metalist.cend();)
162 {
163 rc = sd_journal_get_data(j, (*i).c_str(), (const void**)&data,
164 &length);
165 if (rc < 0)
166 {
167 // Metadata variable not found, check next metadata
168 // variable.
169 i++;
170 continue;
171 }
Adriana Kobylakd311bc82016-10-16 09:54:40 -0500172
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700173 // Metadata variable found, save it and remove it from the set.
174 additionalData.emplace_back(data, length);
175 i = metalist.erase(i);
176 }
177 if (metalist.empty())
178 {
179 // All metadata variables found, break out of journal loop.
180 break;
181 }
182 }
183 if (!metalist.empty())
184 {
185 // Not all the metadata variables were found in the journal.
186 for (auto& metaVarStr : metalist)
187 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500188 lg2::info("Failed to find metadata: {META_FIELD}", "META_FIELD",
189 metaVarStr);
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700190 }
191 }
192
193 sd_journal_close(j);
194 }
Matt Spinlerb60e7552019-07-24 15:28:08 -0500195 createEntry(errMsg, errLvl, additionalData);
196}
197
198void Manager::createEntry(std::string errMsg, Entry::Level errLvl,
Matt Spinlerc64b7122020-03-26 10:55:01 -0500199 std::vector<std::string> additionalData,
200 const FFDCEntries& ffdc)
Matt Spinlerb60e7552019-07-24 15:28:08 -0500201{
202 if (!Extensions::disableDefaultLogCaps())
203 {
204 if (errLvl < Entry::sevLowerLimit)
205 {
206 if (realErrors.size() >= ERROR_CAP)
207 {
208 erase(realErrors.front());
209 }
210 }
211 else
212 {
213 if (infoErrors.size() >= ERROR_INFO_CAP)
214 {
215 erase(infoErrors.front());
216 }
217 }
218 }
219
Adriana Kobylak4ea7f312017-01-10 12:52:34 -0600220 entryId++;
Deepak Kodihalli6fd9dc42018-04-03 02:08:42 -0500221 if (errLvl >= Entry::sevLowerLimit)
Nagaraju Gorugantif8a5a792017-10-13 08:09:52 -0500222 {
223 infoErrors.push_back(entryId);
224 }
Nagaraju Gorugantie4b0b772017-11-30 02:12:45 -0600225 else
226 {
227 realErrors.push_back(entryId);
228 }
Adriana Kobylakc5f0bbd2017-01-22 14:56:04 -0600229 auto ms = std::chrono::duration_cast<std::chrono::milliseconds>(
Patrick Venturef18bf832018-10-26 18:14:00 -0700230 std::chrono::system_clock::now().time_since_epoch())
231 .count();
232 auto objPath = std::string(OBJ_ENTRY) + '/' + std::to_string(entryId);
Deepak Kodihallia87c1572017-02-28 07:40:34 -0600233
Patrick Venturef18bf832018-10-26 18:14:00 -0700234 AssociationList objects{};
Deepak Kodihallia87c1572017-02-28 07:40:34 -0600235 processMetadata(errMsg, additionalData, objects);
236
Patrick Venturef18bf832018-10-26 18:14:00 -0700237 auto e = std::make_unique<Entry>(busLog, objPath, entryId,
238 ms, // Milliseconds since 1970
239 errLvl, std::move(errMsg),
240 std::move(additionalData),
241 std::move(objects), fwVersion, *this);
Adriana Kobylak1ff95ef2020-12-03 13:52:19 -0600242 auto path = serialize(*e);
243 e->path(path);
Matt Spinler99c2b402019-05-23 14:29:16 -0500244
Andrew Geissler32874542020-07-09 09:17:03 -0500245 if (isQuiesceOnErrorEnabled() && isCalloutPresent(*e))
Andrew Geisslerc0c500e2020-03-26 11:08:56 -0500246 {
Andrew Geissler32874542020-07-09 09:17:03 -0500247 quiesceOnError(entryId);
Andrew Geisslerc0c500e2020-03-26 11:08:56 -0500248 }
249
Adriana Kobylake7d271a2020-12-07 14:32:44 -0600250 // Add entry before calling the extensions so that they have access to it
251 entries.insert(std::make_pair(entryId, std::move(e)));
252
253 doExtensionLogCreate(*entries.find(entryId)->second, ffdc);
Matt Spinlerc64b7122020-03-26 10:55:01 -0500254
255 // Note: No need to close the file descriptors in the FFDC.
Adriana Kobylak1db1bd32016-10-10 11:39:20 -0500256}
257
Andrew Geisslerc0c500e2020-03-26 11:08:56 -0500258bool Manager::isQuiesceOnErrorEnabled()
259{
Patrick Williamsa5171972021-04-16 20:10:01 -0500260 // When running under tests, the Logging.Settings service will not be
261 // present. Assume false.
William A. Kennington IIIb6b25572021-05-19 17:09:41 -0700262 if (IS_UNIT_TEST)
263 {
264 return false;
265 }
Patrick Williamsa5171972021-04-16 20:10:01 -0500266
Andrew Geisslerc0c500e2020-03-26 11:08:56 -0500267 std::variant<bool> property;
268
269 auto method = this->busLog.new_method_call(
270 "xyz.openbmc_project.Settings", "/xyz/openbmc_project/logging/settings",
271 "org.freedesktop.DBus.Properties", "Get");
272
273 method.append("xyz.openbmc_project.Logging.Settings", "QuiesceOnHwError");
274
275 try
276 {
277 auto reply = this->busLog.call(method);
278 reply.read(property);
279 }
280 catch (const SdBusError& e)
281 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500282 lg2::error("Error reading QuiesceOnHwError property: {ERROR}", "ERROR",
283 e);
Andrew Geisslerc0c500e2020-03-26 11:08:56 -0500284 throw;
285 }
286
287 return std::get<bool>(property);
288}
289
Andrew Geisslere4960ee2020-03-30 14:31:52 -0500290bool Manager::isCalloutPresent(const Entry& entry)
291{
292 for (const auto& c : entry.additionalData())
293 {
294 if (c.find("CALLOUT_") != std::string::npos)
295 {
296 return true;
297 }
298 }
299
300 return false;
301}
302
Andrew Geissler7f6d4bc2020-04-16 14:47:34 -0500303void Manager::findAndRemoveResolvedBlocks()
304{
305 for (auto& entry : entries)
306 {
307 if (entry.second->resolved())
308 {
309 checkAndRemoveBlockingError(entry.first);
310 }
311 }
312}
313
314void Manager::onEntryResolve(sdbusplus::message::message& msg)
315{
316 using Interface = std::string;
317 using Property = std::string;
318 using Value = std::string;
Patrick Williams25acc6c2020-06-02 11:05:34 -0500319 using Properties = std::map<Property, std::variant<Value>>;
Andrew Geissler7f6d4bc2020-04-16 14:47:34 -0500320
321 Interface interface;
322 Properties properties;
323
324 msg.read(interface, properties);
325
326 for (const auto& p : properties)
327 {
328 if (p.first == "Resolved")
329 {
330 findAndRemoveResolvedBlocks();
331 return;
332 }
333 }
334}
335
Andrew Geisslerf6126a72020-05-08 10:41:09 -0500336void Manager::checkAndQuiesceHost()
337{
Patrick Williamsa144a272021-07-16 17:03:55 -0500338 using Host = sdbusplus::xyz::openbmc_project::State::server::Host;
339
Andrew Geisslerf6126a72020-05-08 10:41:09 -0500340 // First check host state
Patrick Williamsa144a272021-07-16 17:03:55 -0500341 std::variant<Host::HostState> property;
Andrew Geisslerf6126a72020-05-08 10:41:09 -0500342
343 auto method = this->busLog.new_method_call(
344 "xyz.openbmc_project.State.Host", "/xyz/openbmc_project/state/host0",
345 "org.freedesktop.DBus.Properties", "Get");
346
347 method.append("xyz.openbmc_project.State.Host", "CurrentHostState");
348
349 try
350 {
351 auto reply = this->busLog.call(method);
352 reply.read(property);
353 }
354 catch (const SdBusError& e)
355 {
356 // Quiescing the host is a "best effort" type function. If unable to
357 // read the host state or it comes back empty, just return.
358 // The boot block object will still be created and the associations to
359 // find the log will be present. Don't want a dependency with
360 // phosphor-state-manager service
Patrick Williams5f285c52021-07-27 21:25:38 -0500361 lg2::info("Error reading QuiesceOnHwError property: {ERROR}", "ERROR",
362 e);
Andrew Geisslerf6126a72020-05-08 10:41:09 -0500363 return;
364 }
365
Patrick Williamsa144a272021-07-16 17:03:55 -0500366 auto hostState = std::get<Host::HostState>(property);
367 if (hostState != Host::HostState::Running)
Andrew Geisslerf6126a72020-05-08 10:41:09 -0500368 {
369 return;
370 }
371
372 auto quiesce = this->busLog.new_method_call(
373 "org.freedesktop.systemd1", "/org/freedesktop/systemd1",
374 "org.freedesktop.systemd1.Manager", "StartUnit");
375
376 quiesce.append("obmc-host-quiesce@0.target");
377 quiesce.append("replace");
378
379 this->busLog.call_noreply(quiesce);
380}
381
Andrew Geissler32874542020-07-09 09:17:03 -0500382void Manager::quiesceOnError(const uint32_t entryId)
Andrew Geisslerc0c500e2020-03-26 11:08:56 -0500383{
Andrew Geissler72a1cca2020-09-10 16:49:09 -0500384 // Verify we don't already have this entry blocking
385 auto it = find_if(
386 this->blockingErrors.begin(), this->blockingErrors.end(),
387 [&](std::unique_ptr<Block>& obj) { return obj->entryId == entryId; });
388 if (it != this->blockingErrors.end())
389 {
390 // Already recorded so just return
Patrick Williams5f285c52021-07-27 21:25:38 -0500391 lg2::debug(
Andrew Geissler72a1cca2020-09-10 16:49:09 -0500392 "QuiesceOnError set and callout present but entry already logged");
393 return;
394 }
Andrew Geisslere4960ee2020-03-30 14:31:52 -0500395
Patrick Williams5f285c52021-07-27 21:25:38 -0500396 lg2::info("QuiesceOnError set and callout present");
Andrew Geissler6a0ef6f2020-04-06 15:06:31 -0500397
Andrew Geissler7f6d4bc2020-04-16 14:47:34 -0500398 auto blockPath =
Andrew Geissler32874542020-07-09 09:17:03 -0500399 std::string(OBJ_LOGGING) + "/block" + std::to_string(entryId);
400 auto blockObj = std::make_unique<Block>(this->busLog, blockPath, entryId);
Andrew Geissler6a0ef6f2020-04-06 15:06:31 -0500401 this->blockingErrors.push_back(std::move(blockObj));
402
Andrew Geissler7f6d4bc2020-04-16 14:47:34 -0500403 // Register call back if log is resolved
404 using namespace sdbusplus::bus::match::rules;
Andrew Geissler32874542020-07-09 09:17:03 -0500405 auto entryPath = std::string(OBJ_ENTRY) + '/' + std::to_string(entryId);
Andrew Geissler7f6d4bc2020-04-16 14:47:34 -0500406 auto callback = std::make_unique<sdbusplus::bus::match::match>(
407 this->busLog,
408 propertiesChanged(entryPath, "xyz.openbmc_project.Logging.Entry"),
409 std::bind(std::mem_fn(&Manager::onEntryResolve), this,
410 std::placeholders::_1));
411
412 propChangedEntryCallback.insert(
Andrew Geissler32874542020-07-09 09:17:03 -0500413 std::make_pair(entryId, std::move(callback)));
Andrew Geissler7f6d4bc2020-04-16 14:47:34 -0500414
Andrew Geisslerf6126a72020-05-08 10:41:09 -0500415 checkAndQuiesceHost();
Andrew Geisslerc0c500e2020-03-26 11:08:56 -0500416}
417
Matt Spinlerc64b7122020-03-26 10:55:01 -0500418void Manager::doExtensionLogCreate(const Entry& entry, const FFDCEntries& ffdc)
Matt Spinler99c2b402019-05-23 14:29:16 -0500419{
420 // Make the association <endpointpath>/<endpointtype> paths
421 std::vector<std::string> assocs;
422 for (const auto& [forwardType, reverseType, endpoint] :
423 entry.associations())
424 {
425 std::string e{endpoint};
426 e += '/' + reverseType;
427 assocs.push_back(e);
428 }
429
430 for (auto& create : Extensions::getCreateFunctions())
431 {
432 try
433 {
434 create(entry.message(), entry.id(), entry.timestamp(),
Matt Spinlerc64b7122020-03-26 10:55:01 -0500435 entry.severity(), entry.additionalData(), assocs, ffdc);
Matt Spinler99c2b402019-05-23 14:29:16 -0500436 }
437 catch (std::exception& e)
438 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500439 lg2::error(
440 "An extension's create function threw an exception: {ERROR}",
441 "ERROR", e);
Matt Spinler99c2b402019-05-23 14:29:16 -0500442 }
443 }
444}
445
Patrick Williamsf40323d2021-04-16 15:35:17 -0500446void Manager::processMetadata(const std::string& /*errorName*/,
Deepak Kodihallia87c1572017-02-28 07:40:34 -0600447 const std::vector<std::string>& additionalData,
448 AssociationList& objects) const
449{
450 // additionalData is a list of "metadata=value"
451 constexpr auto separator = '=';
Patrick Venture34438962018-10-30 13:17:37 -0700452 for (const auto& entryItem : additionalData)
Deepak Kodihallia87c1572017-02-28 07:40:34 -0600453 {
Patrick Venture34438962018-10-30 13:17:37 -0700454 auto found = entryItem.find(separator);
Patrick Venturef18bf832018-10-26 18:14:00 -0700455 if (std::string::npos != found)
Deepak Kodihallia87c1572017-02-28 07:40:34 -0600456 {
Patrick Venture34438962018-10-30 13:17:37 -0700457 auto metadata = entryItem.substr(0, found);
Deepak Kodihallia87c1572017-02-28 07:40:34 -0600458 auto iter = meta.find(metadata);
Patrick Venturef18bf832018-10-26 18:14:00 -0700459 if (meta.end() != iter)
Deepak Kodihallia87c1572017-02-28 07:40:34 -0600460 {
461 (iter->second)(metadata, additionalData, objects);
462 }
463 }
464 }
465}
466
Andrew Geisslerced6e2a2020-04-07 16:15:29 -0500467void Manager::checkAndRemoveBlockingError(uint32_t entryId)
468{
Andrew Geissler7f6d4bc2020-04-16 14:47:34 -0500469 // First look for blocking object and remove
Andrew Geisslerced6e2a2020-04-07 16:15:29 -0500470 auto it = find_if(
471 blockingErrors.begin(), blockingErrors.end(),
472 [&](std::unique_ptr<Block>& obj) { return obj->entryId == entryId; });
473 if (it != blockingErrors.end())
474 {
475 blockingErrors.erase(it);
476 }
Andrew Geissler7f6d4bc2020-04-16 14:47:34 -0500477
478 // Now remove the callback looking for the error to be resolved
479 auto resolveFind = propChangedEntryCallback.find(entryId);
480 if (resolveFind != propChangedEntryCallback.end())
481 {
482 propChangedEntryCallback.erase(resolveFind);
483 }
484
Andrew Geisslerced6e2a2020-04-07 16:15:29 -0500485 return;
486}
487
Deepak Kodihalli99a85492017-03-31 06:01:57 -0500488void Manager::erase(uint32_t entryId)
489{
Patrick Venture34438962018-10-30 13:17:37 -0700490 auto entryFound = entries.find(entryId);
491 if (entries.end() != entryFound)
Deepak Kodihalli99a85492017-03-31 06:01:57 -0500492 {
Matt Spinler99c2b402019-05-23 14:29:16 -0500493 for (auto& func : Extensions::getDeleteProhibitedFunctions())
494 {
495 try
496 {
497 bool prohibited = false;
498 func(entryId, prohibited);
499 if (prohibited)
500 {
501 // Future work remains to throw an error here.
502 return;
503 }
504 }
505 catch (std::exception& e)
506 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500507 lg2::error("An extension's deleteProhibited function threw an "
508 "exception: {ERROR}",
509 "ERROR", e);
Matt Spinler99c2b402019-05-23 14:29:16 -0500510 }
511 }
512
Deepak Kodihalli33887992017-06-13 07:06:49 -0500513 // Delete the persistent representation of this error.
514 fs::path errorPath(ERRLOG_PERSIST_PATH);
Marri Devender Rao8959efc2017-11-17 00:13:41 -0600515 errorPath /= std::to_string(entryId);
Deepak Kodihalli33887992017-06-13 07:06:49 -0500516 fs::remove(errorPath);
Nagaraju Gorugantie4b0b772017-11-30 02:12:45 -0600517
Patrick Venturef18bf832018-10-26 18:14:00 -0700518 auto removeId = [](std::list<uint32_t>& ids, uint32_t id) {
Nagaraju Gorugantie4b0b772017-11-30 02:12:45 -0600519 auto it = std::find(ids.begin(), ids.end(), id);
520 if (it != ids.end())
521 {
522 ids.erase(it);
523 }
524 };
Patrick Venture34438962018-10-30 13:17:37 -0700525 if (entryFound->second->severity() >= Entry::sevLowerLimit)
Nagaraju Gorugantif8a5a792017-10-13 08:09:52 -0500526 {
Nagaraju Gorugantie4b0b772017-11-30 02:12:45 -0600527 removeId(infoErrors, entryId);
528 }
529 else
530 {
531 removeId(realErrors, entryId);
Nagaraju Gorugantif8a5a792017-10-13 08:09:52 -0500532 }
Patrick Venture34438962018-10-30 13:17:37 -0700533 entries.erase(entryFound);
Matt Spinler99c2b402019-05-23 14:29:16 -0500534
Andrew Geisslerced6e2a2020-04-07 16:15:29 -0500535 checkAndRemoveBlockingError(entryId);
536
Matt Spinler99c2b402019-05-23 14:29:16 -0500537 for (auto& remove : Extensions::getDeleteFunctions())
538 {
539 try
540 {
541 remove(entryId);
542 }
543 catch (std::exception& e)
544 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500545 lg2::error("An extension's delete function threw an exception: "
546 "{ERROR}",
547 "ERROR", e);
Matt Spinler99c2b402019-05-23 14:29:16 -0500548 }
549 }
Deepak Kodihalli99a85492017-03-31 06:01:57 -0500550 }
Marri Devender Rao8959efc2017-11-17 00:13:41 -0600551 else
552 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500553 lg2::error("Invalid entry ID ({ID}) to delete", "ID", entryId);
Marri Devender Rao8959efc2017-11-17 00:13:41 -0600554 }
Deepak Kodihalli99a85492017-03-31 06:01:57 -0500555}
556
Deepak Kodihalli72654f12017-06-12 04:33:29 -0500557void Manager::restore()
558{
Patrick Venturef18bf832018-10-26 18:14:00 -0700559 auto sanity = [](const auto& id, const auto& restoredId) {
Marri Devender Rao979ed1c2017-11-17 05:06:25 -0600560 return id == restoredId;
561 };
Deepak Kodihalli72654f12017-06-12 04:33:29 -0500562 std::vector<uint32_t> errorIds;
563
564 fs::path dir(ERRLOG_PERSIST_PATH);
565 if (!fs::exists(dir) || fs::is_empty(dir))
566 {
567 return;
568 }
569
Patrick Venturef18bf832018-10-26 18:14:00 -0700570 for (auto& file : fs::directory_iterator(dir))
Deepak Kodihalli72654f12017-06-12 04:33:29 -0500571 {
572 auto id = file.path().filename().c_str();
573 auto idNum = std::stol(id);
574 auto e = std::make_unique<Entry>(
Patrick Venturef18bf832018-10-26 18:14:00 -0700575 busLog, std::string(OBJ_ENTRY) + '/' + id, idNum, *this);
Deepak Kodihalli72654f12017-06-12 04:33:29 -0500576 if (deserialize(file.path(), *e))
577 {
Patrick Venturef18bf832018-10-26 18:14:00 -0700578 // validate the restored error entry id
Marri Devender Rao979ed1c2017-11-17 05:06:25 -0600579 if (sanity(static_cast<uint32_t>(idNum), e->id()))
Nagaraju Gorugantif8a5a792017-10-13 08:09:52 -0500580 {
Matt Spinleref952af2021-08-19 10:23:05 -0500581 e->path(file.path(), true);
Marri Devender Rao979ed1c2017-11-17 05:06:25 -0600582 e->emit_object_added();
583 if (e->severity() >= Entry::sevLowerLimit)
584 {
585 infoErrors.push_back(idNum);
586 }
Nagaraju Gorugantie4b0b772017-11-30 02:12:45 -0600587 else
588 {
589 realErrors.push_back(idNum);
590 }
Marri Devender Rao979ed1c2017-11-17 05:06:25 -0600591
592 entries.insert(std::make_pair(idNum, std::move(e)));
593 errorIds.push_back(idNum);
Nagaraju Gorugantif8a5a792017-10-13 08:09:52 -0500594 }
Marri Devender Rao979ed1c2017-11-17 05:06:25 -0600595 else
596 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500597 lg2::error(
Marri Devender Rao979ed1c2017-11-17 05:06:25 -0600598 "Failed in sanity check while restoring error entry. "
Patrick Williams5f285c52021-07-27 21:25:38 -0500599 "Ignoring error entry {ID_NUM}/{ENTRY_ID}.",
600 "ID_NUM", idNum, "ENTRY_ID", e->id());
Marri Devender Rao979ed1c2017-11-17 05:06:25 -0600601 }
Deepak Kodihalli72654f12017-06-12 04:33:29 -0500602 }
603 }
604
Vishwanatha Subbanna37af9ba2017-09-28 16:33:53 +0530605 if (!errorIds.empty())
606 {
607 entryId = *(std::max_element(errorIds.begin(), errorIds.end()));
608 }
Deepak Kodihalli72654f12017-06-12 04:33:29 -0500609}
610
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500611void Manager::journalSync()
612{
613 bool syncRequested = false;
614 auto fd = -1;
615 auto rc = -1;
616 auto wd = -1;
617 auto bus = sdbusplus::bus::new_default();
618
619 auto start =
620 duration_cast<microseconds>(steady_clock::now().time_since_epoch())
621 .count();
622
Matthew Barth59913892019-08-27 15:43:48 -0500623 // Each time an error log is committed, a request to sync the journal
624 // must occur and block that error log commit until it completes. A 5sec
625 // block is done to allow sufficient time for the journal to be synced.
626 //
627 // Number of loop iterations = 3 for the following reasons:
628 // Iteration #1: Requests a journal sync by killing the journald service.
629 // Iteration #2: Setup an inotify watch to monitor the synced file that
630 // journald updates with the timestamp the last time the
631 // journal was flushed.
632 // Iteration #3: Poll to wait until inotify reports an event which blocks
633 // the error log from being commited until the sync completes.
634 constexpr auto maxRetry = 3;
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500635 for (int i = 0; i < maxRetry; i++)
636 {
637 // Read timestamp from synced file
638 constexpr auto syncedPath = "/run/systemd/journal/synced";
639 std::ifstream syncedFile(syncedPath);
640 if (syncedFile.fail())
641 {
Adriana Kobylak7d111a82018-09-04 10:14:24 -0500642 // If the synced file doesn't exist, a sync request will create it.
643 if (errno != ENOENT)
644 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500645 lg2::error(
646 "Failed to open journal synced file {FILENAME}: {ERROR}",
647 "FILENAME", syncedPath, "ERROR", strerror(errno));
Adriana Kobylak7d111a82018-09-04 10:14:24 -0500648 return;
649 }
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500650 }
Adriana Kobylak7d111a82018-09-04 10:14:24 -0500651 else
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500652 {
Adriana Kobylak7d111a82018-09-04 10:14:24 -0500653 // Only read the synced file if it exists.
654 // See if a sync happened by now
655 std::string timestampStr;
656 std::getline(syncedFile, timestampStr);
Patrick Venture30047bf2018-11-01 18:52:15 -0700657 auto timestamp = std::stoll(timestampStr);
Adriana Kobylak7d111a82018-09-04 10:14:24 -0500658 if (timestamp >= start)
659 {
Troy Leeb7f392a2019-11-19 14:34:56 +0800660 break;
Adriana Kobylak7d111a82018-09-04 10:14:24 -0500661 }
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500662 }
663
664 // Let's ask for a sync, but only once
665 if (!syncRequested)
666 {
667 syncRequested = true;
668
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500669 constexpr auto JOURNAL_UNIT = "systemd-journald.service";
670 auto signal = SIGRTMIN + 1;
671
672 auto method = bus.new_method_call(SYSTEMD_BUSNAME, SYSTEMD_PATH,
673 SYSTEMD_INTERFACE, "KillUnit");
674 method.append(JOURNAL_UNIT, "main", signal);
675 bus.call(method);
676 if (method.is_method_error())
677 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500678 lg2::error("Failed to kill journal service");
Troy Leeb7f392a2019-11-19 14:34:56 +0800679 break;
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500680 }
Patrick Williamsa5171972021-04-16 20:10:01 -0500681
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500682 continue;
683 }
684
685 // Let's install the inotify watch, if we didn't do that yet. This watch
686 // monitors the syncedFile for when journald updates it with a newer
687 // timestamp. This means the journal has been flushed.
688 if (fd < 0)
689 {
690 fd = inotify_init1(IN_NONBLOCK | IN_CLOEXEC);
691 if (fd < 0)
692 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500693 lg2::error("Failed to create inotify watch: {ERROR}", "ERROR",
694 strerror(errno));
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500695 return;
696 }
697
698 constexpr auto JOURNAL_RUN_PATH = "/run/systemd/journal";
699 wd = inotify_add_watch(fd, JOURNAL_RUN_PATH,
700 IN_MOVED_TO | IN_DONT_FOLLOW | IN_ONLYDIR);
701 if (wd < 0)
702 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500703 lg2::error("Failed to watch journal directory: {PATH}: {ERROR}",
704 "PATH", JOURNAL_RUN_PATH, "ERROR", strerror(errno));
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500705 close(fd);
706 return;
707 }
708 continue;
709 }
710
711 // Let's wait until inotify reports an event
712 struct pollfd fds = {
Andrew Jefferyeb0aec42021-06-15 11:36:04 +0930713 fd,
714 POLLIN,
715 0,
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500716 };
717 constexpr auto pollTimeout = 5; // 5 seconds
718 rc = poll(&fds, 1, pollTimeout * 1000);
719 if (rc < 0)
720 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500721 lg2::error("Failed to add event: {ERROR}", "ERROR",
722 strerror(errno));
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500723 inotify_rm_watch(fd, wd);
724 close(fd);
725 return;
726 }
727 else if (rc == 0)
728 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500729 lg2::info("Poll timeout ({TIMEOUT}), no new journal synced data",
730 "TIMEOUT", pollTimeout);
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500731 break;
732 }
733
734 // Read from the specified file descriptor until there is no new data,
735 // throwing away everything read since the timestamp will be read at the
736 // beginning of the loop.
737 constexpr auto maxBytes = 64;
738 uint8_t buffer[maxBytes];
739 while (read(fd, buffer, maxBytes) > 0)
740 ;
741 }
742
Adriana Kobylak4a029f22018-05-23 12:58:19 -0500743 if (fd != -1)
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500744 {
Adriana Kobylak4a029f22018-05-23 12:58:19 -0500745 if (wd != -1)
746 {
747 inotify_rm_watch(fd, wd);
748 }
Adriana Kobylak5f4247f2018-03-15 10:27:05 -0500749 close(fd);
750 }
751
752 return;
753}
754
Matt Spinler1275bd12018-05-01 15:13:53 -0500755std::string Manager::readFWVersion()
756{
Matt Spinlerf61f2922020-06-23 11:32:49 -0500757 auto version = util::getOSReleaseValue("VERSION_ID");
Matt Spinler1275bd12018-05-01 15:13:53 -0500758
Matt Spinlerf61f2922020-06-23 11:32:49 -0500759 if (!version)
Matt Spinler1275bd12018-05-01 15:13:53 -0500760 {
Patrick Williams5f285c52021-07-27 21:25:38 -0500761 lg2::error("Unable to read BMC firmware version");
Matt Spinler1275bd12018-05-01 15:13:53 -0500762 }
763
Matt Spinlerf61f2922020-06-23 11:32:49 -0500764 return version.value_or("");
Matt Spinler1275bd12018-05-01 15:13:53 -0500765}
766
Matt Spinler3fb83b32019-07-26 11:22:44 -0500767void Manager::create(const std::string& message, Entry::Level severity,
768 const std::map<std::string, std::string>& additionalData)
769{
770 // Convert the map into a vector of "key=value" strings
771 std::vector<std::string> ad;
772 metadata::associations::combine(additionalData, ad);
773
774 createEntry(message, severity, ad);
775}
776
Matt Spinlerc64b7122020-03-26 10:55:01 -0500777void Manager::createWithFFDC(
778 const std::string& message, Entry::Level severity,
779 const std::map<std::string, std::string>& additionalData,
780 const FFDCEntries& ffdc)
781{
782 // Convert the map into a vector of "key=value" strings
783 std::vector<std::string> ad;
784 metadata::associations::combine(additionalData, ad);
785
786 createEntry(message, severity, ad, ffdc);
787}
788
Nagaraju Goruganti05aae8b2017-08-30 07:56:12 -0500789} // namespace internal
Adriana Kobylak8f7941e2016-11-14 14:46:23 -0600790} // namespace logging
Patrick Venturef18bf832018-10-26 18:14:00 -0700791} // namespace phosphor