14 #include <unordered_set> 17 #include <zypp/base/LogControl.h> 18 #include <zypp/base/LogTools.h> 19 #include <zypp/base/String.h> 20 #include <zypp/base/Gettext.h> 21 #include <zypp/base/Exception.h> 23 #include <zypp/PathInfo.h> 24 #include <zypp/ExternalProgram.h> 25 #include <zypp/base/Regex.h> 26 #include <zypp/base/IOStream.h> 27 #include <zypp-core/base/InputStream> 34 #undef ZYPP_BASE_LOGGER_LOGGROUP 35 #define ZYPP_BASE_LOGGER_LOGGROUP "zypp::misc" 54 typedef std::pair<std::string,std::unordered_set<std::string>> CacheEntry;
62 struct FilterRunsInContainer
77 Type in_our_root(
const Pathname &path )
const {
79 const PathInfo procInfoStat( path );
82 if ( procInfoStat.error() )
return IGNORE;
85 if ( procInfoStat.nlink() == 0 )
90 if ( linkTarget.empty() )
return IGNORE;
93 const PathInfo linkStat( linkTarget );
96 if ( !linkStat.isExist() )
100 if ( linkStat.ino() != procInfoStat.ino())
104 if ( linkStat.dev() != procInfoStat.dev() )
116 bool operator()(
const pid_t pid )
const {
119 const Pathname pidDir = Pathname(
"/proc") /
asString(pid);
120 const Pathname exeFile = pidDir /
"exe";
122 auto res = in_our_root( exeFile );
124 return res == CONTAINER;
130 std::unordered_set<std::string> tested;
133 filesystem::dirForEach( pidDir /
"map_files", [
this, &tested, &res ](
const Pathname & dir_r,
const char *
const & name_r ){
136 constexpr
bool contloop =
true;
137 constexpr
bool stoploop =
false;
139 const Pathname entryName = dir_r / name_r;
143 if ( linkTarget.empty() || !tested.insert( linkTarget.asString() ).second )
return contloop;
146 const auto mappedFileType = in_our_root( entryName );
149 if ( mappedFileType > IGNORE ) {
150 res = mappedFileType;
160 return res == CONTAINER;
163 FilterRunsInContainer() {}
174 using target::rpm::librpmDb;
179 : _wasBlocked( librpmDb::isBlocked() )
180 {
if ( _wasBlocked ) librpmDb::unblockAccess(); }
182 {
if ( _wasBlocked ) librpmDb::blockAccess(); }
187 librpmDb::db_const_iterator it;
188 return( it.findPackage(
"lsof" ) && it->tag_edition() < Edition(
"4.90") && !it->tag_provides().count( Capability(
"backported-option-Ki") ) );
199 bool addDataIf(
const CacheEntry & cache_r, std::vector<std::string> *debMap =
nullptr );
200 void addCacheIf( CacheEntry & cache_r,
const std::string & line_r, std::vector<std::string> *debMap =
nullptr );
205 std::vector<CheckAccessDeleted::ProcInfo>
_data;
225 const auto & filelist( cache_r.second );
227 if ( filelist.empty() )
233 pinfo.
files.insert( pinfo.files.begin(), filelist.begin(), filelist.end() );
235 const std::string & pline( cache_r.first );
236 std::string commandname;
237 std::ostringstream pLineStr;
238 for_( ch, pline.begin(), pline.end() )
243 pinfo.pid = &*(ch+1);
245 pLineStr <<&*(ch)<<
'\0';
248 pinfo.ppid = &*(ch+1);
250 pLineStr <<&*(ch)<<
'\0';
253 pinfo.puid = &*(ch+1);
255 pLineStr <<&*(ch)<<
'\0';
258 pinfo.login = &*(ch+1);
260 pLineStr <<&*(ch)<<
'\0';
263 if ( pinfo.command.empty() ) {
264 commandname = &*(ch+1);
266 if (!_fromLsofFileMode)
268 if ( pinfo.command.empty() )
269 pinfo.command = std::move(commandname);
271 pLineStr <<
'c'<<pinfo.command<<
'\0';
275 if ( *ch ==
'\n' )
break;
276 do { ++ch; }
while ( *ch !=
'\0' );
282 debMap->front() = pLineStr.str();
301 for_( ch, line_r.c_str(), ch+line_r.size() )
306 if ( *(ch+1) !=
'0' )
319 if ( *ch ==
'\n' )
break;
320 do { ++ch; }
while ( *ch !=
'\0' );
323 if ( !t || !f || !n )
326 if ( !( ( *t ==
'R' && *(t+1) ==
'E' && *(t+2) ==
'G' && *(t+3) ==
'\0' )
327 || ( *t ==
'D' && *(t+1) ==
'E' && *(t+2) ==
'L' && *(t+3) ==
'\0' ) ) )
330 if ( !( ( *f ==
'm' && *(f+1) ==
'e' && *(f+2) ==
'm' && *(f+3) ==
'\0' )
331 || ( *f ==
't' && *(f+1) ==
'x' && *(f+2) ==
't' && *(f+3) ==
'\0' )
332 || ( *f ==
'D' && *(f+1) ==
'E' && *(f+2) ==
'L' && *(f+3) ==
'\0' )
333 || ( *f ==
'l' && *(f+1) ==
't' && *(f+2) ==
'x' && *(f+3) ==
'\0' ) ) )
345 if ( *f ==
'm' || *f ==
'D' )
347 static const char * black[] = {
362 if ( debMap && cache_r.second.find(n) == cache_r.second.end() ) {
363 debMap->push_back(line_r);
365 cache_r.second.insert( n );
371 if ( doCheck_r )
check();
379 FILE *inFile = fopen( lsofOutput_r.
c_str(),
"r" );
394 std::map<pid_t,CacheEntry> cachemap;
399 FilterRunsInContainer runsInLXC;
400 MIL <<
"Silently scanning lsof output..." << endl;
402 for( std::string line = source.
receiveLine( 30 * 1000 ); ! line.empty(); line = source.
receiveLine( 30 * 1000 ) )
405 if ( line[0] ==
'p' )
409 if ( debugEnabled ) {
411 if ( pidMad.empty() )
412 debugMap[cachepid].push_back( line );
416 cachemap[cachepid].first.swap( line );
424 addCacheIf( cachemap[cachepid], line, debugEnabled ? &dbgMap :
nullptr);
432 static const char* argv[] = {
"lsof",
"-n",
"-FpcuLRftkn0",
"-K",
"i", NULL };
440 std::map<pid_t,CacheEntry> cachemap;
450 int ret = prog.
close();
467 std::ofstream debugFileOut;
468 bool debugEnabled =
false;
469 if ( !_debugFile.empty() ) {
470 debugFileOut.open( _debugFile.c_str() );
471 debugEnabled = debugFileOut.is_open();
473 if ( !debugEnabled ) {
474 ERR<<
"Unable to open debug file: "<<_debugFile<<endl;
479 for (
const auto &cached : in )
482 addDataIf( cached.second);
484 std::vector<std::string> *mapPtr =
nullptr;
486 auto dbgInfo = debugMap.find(cached.first);
487 if ( dbgInfo != debugMap.end() )
488 mapPtr = &(dbgInfo->second);
490 if( !addDataIf( cached.second, mapPtr ) )
493 for (
const std::string &dbgLine: dbgInfo->second ) {
494 debugFileOut.write( dbgLine.c_str(), dbgLine.length() );
535 static const str::regex rx(
"(0::|[0-9]+:name=systemd:)/system.slice/(.*/)?(.*).service$" );
539 [&](
int num_r, std::string line_r )->
bool 570 if ( obj.
pid.empty() )
571 return str <<
"<NoProc>";
std::string asString(const Patch::Category &obj)
bool addDataIf(const CacheEntry &cache_r, std::vector< std::string > *debMap=nullptr)
Add cache to data if the process is accessing deleted files.
Data about one running process accessing deleted files.
Bidirectional stream to external data.
bool contains(const C_Str &str_r, const C_Str &val_r)
Locate substring case sensitive.
std::map< pid_t, CacheEntry > filterInput(externalprogram::ExternalDataSource &source)
#define ZYPP_THROW(EXCPT)
Drops a logline and throws the Exception.
bool kill()
Kill the program.
std::map< pid_t, std::vector< std::string > > debugMap
int readlink(const Pathname &symlink_r, Pathname &target_r)
Like 'readlink'.
void setDebugOutputFile(const Pathname &filename_r)
Writes all filtered process entries that make it into the final set into a file specified by filename...
const std::string & execError() const
Some detail telling why the execution failed, if it failed.
std::ostream & dumpRange(std::ostream &str, TIterator begin, TIterator end, const std::string &intro="{", const std::string &pfx="\ ", const std::string &sep="\ ", const std::string &sfx="\, const std::string &extro="}")
Print range defined by iterators (multiline style).
int dirForEach(const Pathname &dir_r, const StrMatcher &matcher_r, function< bool(const Pathname &, const char *const)> fnc_r)
#define for_(IT, BEG, END)
Convenient for-loops using iterator.
const char * c_str() const
String representation.
std::string command
process command name
String related utilities and Regular expression matching.
std::string receiveLine()
Read one line from the input stream.
Exchange LineWriter for the lifetime of this object.
std::ostream & operator<<(std::ostream &str, const CheckAccessDeleted &obj)
void remember(const Exception &old_r)
Store an other Exception as history.
CheckAccessDeleted::Impl * clone() const
bool empty() const
Test for an empty path.
size_type check(bool verbose_r=false)
Check for running processes which access deleted executables or libraries.
RWCOW_pointer< Impl > _pimpl
const_iterator begin() const
int simpleParseFile(std::istream &str_r, ParseFlags flags_r, function< bool(int, std::string)> consume_r)
Simple lineparser optionally trimming and skipping comments.
std::string pid
process ID
Execute a program and give access to its io An object of this class encapsulates the execution of an ...
std::list< PublicKeyData > _data
std::vector< CheckAccessDeleted::ProcInfo > _data
TInt strtonum(const C_Str &str)
Parsing numbers from string.
std::string puid
process user ID
const_iterator end() const
std::string numstring(char n, int w=0)
CheckAccessDeleted::size_type createProcInfo(const std::map< pid_t, CacheEntry > &in)
int close()
Wait for the progamm to complete.
#define ZYPP_CAUGHT(EXCPT)
Drops a logline telling the Exception was caught (in order to handle it).
Regular expression match result.
Base class for Exception.
Check for running processes which access deleted executables or libraries.
CheckAccessDeleted(bool doCheck_r=true)
Default ctor performs check immediately.
std::ostream & dumpRangeLine(std::ostream &str, TIterator begin, TIterator end)
Print range defined by iterators (single line style).
bool regex_match(const std::string &s, smatch &matches, const regex ®ex)
regex ZYPP_STR_REGEX regex ZYPP_STR_REGEX
Easy-to use interface to the ZYPP dependency resolver.
bool hasPrefix(const C_Str &str_r, const C_Str &prefix_r)
Return whether str_r has prefix prefix_r.
std::vector< ProcInfo >::const_iterator const_iterator
std::string login
process login name
void addCacheIf(CacheEntry &cache_r, const std::string &line_r, std::vector< std::string > *debMap=nullptr)
Add file to cache if it refers to a deleted executable or library file:
std::vector< std::string > files
list of deleted executables or libraries accessed
#define arrayBegin(A)
Simple C-array iterator.
std::string ppid
parent process ID
std::string service() const
Guess if command was started by a systemd service script.
static std::string findService(pid_t pid_r)
Guess if pid was started by a systemd service script.