Remove other simple uses of PDict

This commit is contained in:
Tim Wojtulewicz 2019-07-26 13:42:16 -07:00 committed by Jon Siwek
parent 8beb710a5e
commit e6558d1f19
9 changed files with 84 additions and 75 deletions

View file

@ -141,8 +141,6 @@ protected:
DNS_MgrMode mode;
PDict<ListVal> services;
HostMap host_mappings;
AddrMap addr_mappings;
TextMap text_mappings;

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@ -194,9 +194,13 @@ int Specific_RE_Matcher::CompileSet(const string_list& set, const int_list& idx)
return 1;
}
const char* Specific_RE_Matcher::LookupDef(const char* def)
string Specific_RE_Matcher::LookupDef(const string& def)
{
return defs.Lookup(def);
const auto& iter = defs.find(def);
if ( iter != defs.end() )
return iter->first;
return string();
}
int Specific_RE_Matcher::MatchAll(const char* s)
@ -412,10 +416,18 @@ unsigned int Specific_RE_Matcher::MemoryAllocation() const
for ( int i = 0; i < ccl_list.length(); ++i )
size += ccl_list[i]->MemoryAllocation();
size += pad_size(sizeof(CCL*) * ccl_dict.size());
for ( const auto& entry : ccl_dict )
size += padded_sizeof(std::string) + pad_size(sizeof(std::string::value_type) * entry.first.size());
for ( const auto& entry : defs )
{
size += padded_sizeof(std::string) + pad_size(sizeof(std::string::value_type) * entry.first.size());
size += padded_sizeof(std::string) + pad_size(sizeof(std::string::value_type) * entry.second.size());
}
return size + padded_sizeof(*this)
+ (pattern_text ? pad_size(strlen(pattern_text) + 1) : 0)
+ defs.MemoryAllocation() - padded_sizeof(defs) // FIXME: count content
+ ccl_dict.MemoryAllocation() - padded_sizeof(ccl_dict) // FIXME: count content
+ ccl_list.MemoryAllocation() - padded_sizeof(ccl_list)
+ equiv_class.Size() - padded_sizeof(EquivClass)
+ (dfa ? dfa->MemoryAllocation() : 0) // this is ref counted; consider the bytes here?

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@ -59,15 +59,22 @@ public:
// The following is vestigial from flex's use of "{name}" definitions.
// It's here because at some point we may want to support such
// functionality.
const char* LookupDef(const char* def);
std::string LookupDef(const std::string& def);
void InsertCCL(const char* txt, CCL* ccl) { ccl_dict.Insert(txt, ccl); }
void InsertCCL(const char* txt, CCL* ccl) { ccl_dict[string(txt)] = ccl; }
int InsertCCL(CCL* ccl)
{
ccl_list.push_back(ccl);
return ccl_list.length() - 1;
}
CCL* LookupCCL(const char* txt) { return ccl_dict.Lookup(txt); }
CCL* LookupCCL(const char* txt)
{
const auto& iter = ccl_dict.find(string(txt));
if ( iter != ccl_dict.end() )
return iter->second;
return nullptr;
}
CCL* LookupCCL(int index) { return ccl_list[index]; }
CCL* AnyCCL();
@ -119,8 +126,8 @@ protected:
int multiline;
char* pattern_text;
PDict<char> defs;
PDict<CCL> ccl_dict;
std::map<string,string> defs;
std::map<string,CCL*> ccl_dict;
PList<CCL> ccl_list;
EquivClass equiv_class;
int* ecs;

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@ -2,6 +2,7 @@
#define rule_h
#include <limits.h>
#include <map>
#include "Obj.h"
#include "List.h"
@ -15,7 +16,7 @@ class RuleHdrTest;
class Rule;
typedef PList<Rule> rule_list;
typedef PDict<Rule> rule_dict;
typedef std::map<string, Rule*> rule_dict;
class Rule {
public:

View file

@ -267,14 +267,14 @@ bool RuleMatcher::ReadFiles(const name_list& files)
void RuleMatcher::AddRule(Rule* rule)
{
if ( rules_by_id.Lookup(rule->ID()) )
if ( rules_by_id.find(rule->ID()) != rules_by_id.end() )
{
rules_error("rule defined twice");
return;
}
rules.push_back(rule);
rules_by_id.Insert(rule->ID(), rule);
rules_by_id[rule->ID()] = rule;
}
void RuleMatcher::BuildRulesTree()
@ -295,15 +295,15 @@ void RuleMatcher::InsertRuleIntoTree(Rule* r, int testnr,
// Initiliaze the preconditions
for ( const auto& pc : r->preconds )
{
Rule* pc_rule = rules_by_id.Lookup(pc->id);
if ( ! pc_rule )
auto entry = rules_by_id.find(pc->id);
if ( entry == rules_by_id.end() )
{
rules_error(r, "unknown rule referenced");
return;
}
pc->rule = pc_rule;
pc_rule->dependents.push_back(r);
pc->rule = entry->second;
entry->second->dependents.push_back(r);
}
// All tests in tree already?

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@ -24,7 +24,7 @@ string Manager::salt;
Manager::Manager()
: plugin::ComponentManager<file_analysis::Tag,
file_analysis::Component>("Files", "Tag"),
id_map(), ignored(), current_file_id(), magic_state()
current_file_id(), magic_state(), cumulative_files(0), max_files(0)
{
}
@ -35,19 +35,8 @@ Manager::~Manager()
// Have to assume that too much of Bro has been shutdown by this point
// to do anything more than reclaim memory.
File* f;
bool* b;
IterCookie* it = id_map.InitForIteration();
while ( (f = id_map.NextEntry(it)) )
delete f;
it = ignored.InitForIteration();
while( (b = ignored.NextEntry(it)) )
delete b;
for ( const auto& entry : id_map )
delete entry.second;
delete magic_state;
}
@ -69,19 +58,11 @@ void Manager::InitMagic()
void Manager::Terminate()
{
vector<string> keys;
for ( const auto& entry : id_map )
keys.push_back(entry.first);
IterCookie* it = id_map.InitForIteration();
HashKey* key;
while ( id_map.NextEntry(key, it) )
{
keys.push_back(string(static_cast<const char*>(key->Key()),
key->Size()));
delete key;
}
for ( size_t i = 0; i < keys.size(); ++i )
Timeout(keys[i], true);
for ( const string& key : keys )
Timeout(key, true);
mgr.Drain();
}
@ -329,7 +310,7 @@ File* Manager::GetFile(const string& file_id, Connection* conn,
if ( IsIgnored(file_id) )
return 0;
File* rval = id_map.Lookup(file_id.c_str());
File* rval = LookupFile(file_id);
if ( ! rval )
{
@ -337,7 +318,12 @@ File* Manager::GetFile(const string& file_id, Connection* conn,
source_name ? source_name
: analyzer_mgr->GetComponentName(tag),
conn, tag, is_orig);
id_map.Insert(file_id.c_str(), rval);
id_map[file_id] = rval;
++cumulative_files;
if ( id_map.size() > max_files )
max_files = id_map.size();
rval->ScheduleInactivityTimer();
// Generate file_new after inserting it into manager's mapping
@ -362,7 +348,11 @@ File* Manager::GetFile(const string& file_id, Connection* conn,
File* Manager::LookupFile(const string& file_id) const
{
return id_map.Lookup(file_id.c_str());
const auto& entry = id_map.find(file_id);
if ( entry == id_map.end() )
return nullptr;
return entry->second;
}
void Manager::Timeout(const string& file_id, bool is_terminating)
@ -393,22 +383,21 @@ void Manager::Timeout(const string& file_id, bool is_terminating)
bool Manager::IgnoreFile(const string& file_id)
{
if ( ! id_map.Lookup(file_id.c_str()) )
if ( ! LookupFile(file_id) )
return false;
DBG_LOG(DBG_FILE_ANALYSIS, "Ignore FileID %s", file_id.c_str());
delete ignored.Insert(file_id.c_str(), new bool);
ignored.insert(file_id);
return true;
}
bool Manager::RemoveFile(const string& file_id)
{
HashKey key(file_id.c_str());
// Can't remove from the dictionary/map right away as invoking EndOfFile
// may cause some events to be executed which actually depend on the file
// still being in the dictionary/map.
File* f = static_cast<File*>(id_map.Lookup(&key));
File* f = LookupFile(file_id);
if ( ! f )
return false;
@ -417,14 +406,15 @@ bool Manager::RemoveFile(const string& file_id)
f->EndOfFile();
delete f;
id_map.Remove(&key);
delete static_cast<bool*>(ignored.Remove(&key));
id_map.erase(file_id);
ignored.erase(file_id);
return true;
}
bool Manager::IsIgnored(const string& file_id)
{
return ignored.Lookup(file_id.c_str()) != 0;
return ignored.find(file_id) != ignored.end();
}
string Manager::GetFileID(analyzer::Tag tag, Connection* c, bool is_orig)

View file

@ -5,6 +5,7 @@
#include <string>
#include <queue>
#include <unordered_set>
#include "Dict.h"
#include "Net.h"
@ -325,20 +326,17 @@ public:
std::string DetectMIME(const u_char* data, uint64 len) const;
uint64 CurrentFiles()
{ return id_map.Length(); }
{ return id_map.size(); }
uint64 MaxFiles()
{ return id_map.MaxLength(); }
{ return max_files; }
uint64 CumulativeFiles()
{ return id_map.NumCumulativeInserts(); }
{ return cumulative_files; }
protected:
friend class FileTimer;
typedef PDict<bool> IDSet;
typedef PDict<File> IDMap;
/**
* Create a new file to be analyzed or retrieve an existing one.
* @param file_id the file identifier/hash.
@ -407,8 +405,8 @@ private:
TagSet* LookupMIMEType(const string& mtype, bool add_if_not_found);
PDict<File> id_map; /**< Map file ID to file_analysis::File records. */
PDict<bool> ignored; /**< Ignored files. Will be finally removed on EOF. */
std::map<string, File*> id_map; /**< Map file ID to file_analysis::File records. */
std::unordered_set<string> ignored; /**< Ignored files. Will be finally removed on EOF. */
string current_file_id; /**< Hash of what get_file_handle event sets. */
RuleFileMagicState* magic_state; /**< File magic signature match state. */
MIMEMap mime_types;/**< Mapping of MIME types to analyzers. */
@ -416,6 +414,9 @@ private:
static TableVal* disabled; /**< Table of disabled analyzers. */
static TableType* tag_set_type; /**< Type for set[tag]. */
static string salt; /**< A salt added to file handles before hashing. */
size_t cumulative_files;
size_t max_files;
};
/**

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@ -85,14 +85,14 @@ CCL_EXPR ("[:"[[:alpha:]]+":]")
char* nmstr = copy_string(yytext+1);
nmstr[yyleng - 2] = '\0'; // chop trailing brace
const char* namedef = rem->LookupDef(nmstr);
std::string namedef = rem->LookupDef(nmstr);
delete nmstr;
if ( ! namedef )
if ( namedef.empty() )
synerr("undefined definition");
else
{ // push back name surrounded by ()'s
int len = strlen(namedef);
int len = namedef.size();
if ( namedef[0] == '^' ||
(len > 0 && namedef[len - 1] == '$') )