suricata
Macros
util-threshold-config.c File Reference
Thresholding
#include "suricata-common.h"
#include "host.h"
#include "ippair.h"
#include "detect.h"
#include "detect-engine.h"
#include "detect-engine-address.h"
#include "detect-threshold.h"
#include "detect-parse.h"
#include "conf.h"
#include "util-threshold-config.h"
#include "util-unittest.h"
#include "util-unittest-helper.h"
#include "util-byte.h"
#include "util-time.h"
#include "util-error.h"
#include "util-debug.h"
#include "util-fmemopen.h"
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Go to the source code of this file.

Macros

#define MAX_SUBSTRINGS   30
 
#define DETECT_BASE_REGEX   "^\\s*(event_filter|threshold|rate_filter|suppress)\\s*gen_id\\s*(\\d+)\\s*,\\s*sig_id\\s*(\\d+)\\s*(.*)\\s*$"
 
#define DETECT_THRESHOLD_REGEX   "^,\\s*type\\s*(limit|both|threshold)\\s*,\\s*track\\s*(by_dst|by_src)\\s*,\\s*count\\s*(\\d+)\\s*,\\s*seconds\\s*(\\d+)\\s*$"
 
#define DETECT_RATE_REGEX   "^,\\s*track\\s*(by_dst|by_src|by_both|by_rule)\\s*,\\s*count\\s*(\\d+)\\s*,\\s*seconds\\s*(\\d+)\\s*,\\s*new_action\\s*(alert|drop|pass|log|sdrop|reject)\\s*,\\s*timeout\\s*(\\d+)\\s*$"
 
#define DETECT_SUPPRESS_REGEX   "^,\\s*track\\s*(by_dst|by_src|by_either)\\s*,\\s*ip\\s*([\\[\\],\\$\\s\\da-zA-Z.:/_]+)*\\s*$"
 
#define THRESHOLD_CONF_DEF_CONF_FILEPATH   CONFIG_DIR "/threshold.config"
 
enum  ThresholdRuleType { THRESHOLD_TYPE_EVENT_FILTER, THRESHOLD_TYPE_THRESHOLD, THRESHOLD_TYPE_RATE, THRESHOLD_TYPE_SUPPRESS }
 
typedef enum ThresholdRuleType ThresholdRuleType
 
void SCThresholdConfGlobalInit (void)
 
void SCThresholdConfGlobalFree (void)
 
int SCThresholdConfInitContext (DetectEngineCtx *de_ctx)
 Inits the context to be used by the Threshold Config parsing API. More...
 
void SCThresholdConfParseFile (DetectEngineCtx *de_ctx, FILE *fp)
 Parses the Threshold Config file. More...
 
void SCThresholdConfRegisterTests (void)
 This function registers unit tests for Classification Config API. More...
 

Detailed Description

Author
Breno Silva Pinto breno.nosp@m..sil.nosp@m.va@gm.nosp@m.ail..nosp@m.com
Todo:
Need to support suppress

Implements Threshold support

Definition in file util-threshold-config.c.

Macro Definition Documentation

◆ DETECT_BASE_REGEX

#define DETECT_BASE_REGEX   "^\\s*(event_filter|threshold|rate_filter|suppress)\\s*gen_id\\s*(\\d+)\\s*,\\s*sig_id\\s*(\\d+)\\s*(.*)\\s*$"

Definition at line 67 of file util-threshold-config.c.

◆ DETECT_RATE_REGEX

#define DETECT_RATE_REGEX   "^,\\s*track\\s*(by_dst|by_src|by_both|by_rule)\\s*,\\s*count\\s*(\\d+)\\s*,\\s*seconds\\s*(\\d+)\\s*,\\s*new_action\\s*(alert|drop|pass|log|sdrop|reject)\\s*,\\s*timeout\\s*(\\d+)\\s*$"

Definition at line 72 of file util-threshold-config.c.

◆ DETECT_SUPPRESS_REGEX

#define DETECT_SUPPRESS_REGEX   "^,\\s*track\\s*(by_dst|by_src|by_either)\\s*,\\s*ip\\s*([\\[\\],\\$\\s\\da-zA-Z.:/_]+)*\\s*$"

Definition at line 80 of file util-threshold-config.c.

◆ DETECT_THRESHOLD_REGEX

#define DETECT_THRESHOLD_REGEX   "^,\\s*type\\s*(limit|both|threshold)\\s*,\\s*track\\s*(by_dst|by_src)\\s*,\\s*count\\s*(\\d+)\\s*,\\s*seconds\\s*(\\d+)\\s*$"

Definition at line 69 of file util-threshold-config.c.

◆ MAX_SUBSTRINGS

#define MAX_SUBSTRINGS   30

◆ THRESHOLD_CONF_DEF_CONF_FILEPATH

#define THRESHOLD_CONF_DEF_CONF_FILEPATH   CONFIG_DIR "/threshold.config"

Definition at line 86 of file util-threshold-config.c.

Typedef Documentation

◆ ThresholdRuleType

typedef enum ThresholdRuleType ThresholdRuleType

Enumeration Type Documentation

◆ ThresholdRuleType

enum ThresholdRuleType
Enumerator
THRESHOLD_TYPE_EVENT_FILTER 
THRESHOLD_TYPE_THRESHOLD 
THRESHOLD_TYPE_RATE 
THRESHOLD_TYPE_SUPPRESS 

Definition at line 54 of file util-threshold-config.c.

Function Documentation

◆ SCThresholdConfGlobalFree()

void SCThresholdConfGlobalFree ( void  )

Definition at line 151 of file util-threshold-config.c.

◆ SCThresholdConfGlobalInit()

void SCThresholdConfGlobalInit ( void  )

Definition at line 103 of file util-threshold-config.c.

Referenced by GlobalsInitPreConfig().

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◆ SCThresholdConfInitContext()

int SCThresholdConfInitContext ( DetectEngineCtx *  de_ctx)

Inits the context to be used by the Threshold Config parsing API. 

   This function initializes the hash table to be used by the Detection
   Engine Context to hold the data from the threshold.config file,
   obtains the file desc to parse the threshold.config file, and
   inits the regex used to parse the lines from threshold.config
   file.
Parameters
de_ctxPointer to the Detection Engine Context.
Return values
0On success.
-1On failure.

Definition at line 237 of file util-threshold-config.c.

◆ SCThresholdConfParseFile()

void SCThresholdConfParseFile ( DetectEngineCtx *  de_ctx,
FILE *  fp 
)

Parses the Threshold Config file.

Parameters
de_ctxPointer to the Detection Engine Context.
fdPointer to file descriptor.

Definition at line 1102 of file util-threshold-config.c.

◆ SCThresholdConfRegisterTests()

void SCThresholdConfRegisterTests ( void  )

This function registers unit tests for Classification Config API.

Definition at line 2729 of file util-threshold-config.c.

References UtRegisterTest().

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