suricata
flow-manager.c File Reference
#include "suricata-common.h"
#include "suricata.h"
#include "decode.h"
#include "conf.h"
#include "threadvars.h"
#include "tm-threads.h"
#include "runmodes.h"
#include "util-random.h"
#include "util-time.h"
#include "flow.h"
#include "flow-queue.h"
#include "flow-hash.h"
#include "flow-util.h"
#include "flow-var.h"
#include "flow-private.h"
#include "flow-timeout.h"
#include "flow-manager.h"
#include "flow-storage.h"
#include "flow-spare-pool.h"
#include "stream-tcp-private.h"
#include "stream-tcp-reassemble.h"
#include "stream-tcp.h"
#include "util-unittest.h"
#include "util-unittest-helper.h"
#include "util-byte.h"
#include "util-debug.h"
#include "util-privs.h"
#include "util-signal.h"
#include "threads.h"
#include "detect.h"
#include "detect-engine-state.h"
#include "stream.h"
#include "app-layer-parser.h"
#include "host-timeout.h"
#include "defrag-timeout.h"
#include "ippair-timeout.h"
#include "output-flow.h"
#include "util-validate.h"
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Data Structures

struct  FlowTimeoutCounters_
 
struct  FlowManagerTimeoutThread
 
struct  FlowQueueTimeoutCounters
 
struct  FlowCounters_
 
struct  FlowManagerThreadData_
 
struct  FlowRecyclerThreadData_
 

Macros

#define FLOW_NORMAL_MODE_UPDATE_DELAY_SEC   1
 
#define FLOW_NORMAL_MODE_UPDATE_DELAY_NSEC   0
 
#define FLOW_EMERG_MODE_UPDATE_DELAY_SEC   0
 
#define FLOW_EMERG_MODE_UPDATE_DELAY_NSEC   300000
 
#define NEW_FLOW_COUNT_COND   10
 
#define BITS   32
 
#define TYPE   uint32_t
 

Typedefs

typedef struct FlowTimeoutCounters_ FlowTimeoutCounters
 
typedef struct FlowManagerTimeoutThread FlowManagerTimeoutThread
 
typedef struct FlowQueueTimeoutCounters FlowQueueTimeoutCounters
 
typedef struct FlowCounters_ FlowCounters
 
typedef struct FlowManagerThreadData_ FlowManagerThreadData
 
typedef struct FlowRecyclerThreadData_ FlowRecyclerThreadData
 

Functions

 SC_ATOMIC_DECLARE (uint32_t, flowmgr_cnt)
 
 SC_ATOMIC_DECLARE (uint32_t, flowrec_cnt)
 
 SC_ATOMIC_DECLARE (uint32_t, flowrec_busy)
 
 SC_ATOMIC_EXTERN (unsigned int, flow_flags)
 
void FlowTimeoutsInit (void)
 
void FlowTimeoutsEmergency (void)
 
void FlowDisableFlowManagerThread (void)
 Used to disable flow manager thread(s). More...
 
void FlowManagerThreadSpawn ()
 spawn the flow manager thread More...
 
void FlowRecyclerThreadSpawn ()
 spawn the flow recycler thread More...
 
void FlowDisableFlowRecyclerThread (void)
 Used to disable flow recycler thread(s). More...
 
void TmModuleFlowManagerRegister (void)
 
void TmModuleFlowRecyclerRegister (void)
 

Variables

int run_mode
 
FlowQueue flow_recycle_q
 
int g_detect_disabled
 

Detailed Description

Macro Definition Documentation

◆ BITS

#define BITS   32

◆ FLOW_EMERG_MODE_UPDATE_DELAY_NSEC

#define FLOW_EMERG_MODE_UPDATE_DELAY_NSEC   300000

Definition at line 107 of file flow-manager.c.

◆ FLOW_EMERG_MODE_UPDATE_DELAY_SEC

#define FLOW_EMERG_MODE_UPDATE_DELAY_SEC   0

Definition at line 106 of file flow-manager.c.

◆ FLOW_NORMAL_MODE_UPDATE_DELAY_NSEC

#define FLOW_NORMAL_MODE_UPDATE_DELAY_NSEC   0

Definition at line 104 of file flow-manager.c.

◆ FLOW_NORMAL_MODE_UPDATE_DELAY_SEC

#define FLOW_NORMAL_MODE_UPDATE_DELAY_SEC   1

Definition at line 103 of file flow-manager.c.

◆ NEW_FLOW_COUNT_COND

#define NEW_FLOW_COUNT_COND   10

Definition at line 108 of file flow-manager.c.

◆ TYPE

#define TYPE   uint32_t

Typedef Documentation

◆ FlowCounters

typedef struct FlowCounters_ FlowCounters

◆ FlowManagerThreadData

◆ FlowManagerTimeoutThread

◆ FlowQueueTimeoutCounters

◆ FlowRecyclerThreadData

◆ FlowTimeoutCounters

Function Documentation

◆ FlowDisableFlowManagerThread()

void FlowDisableFlowManagerThread ( void  )

Used to disable flow manager thread(s).

Todo:
Kinda hackish since it uses the tv name to identify flow manager thread. We need an all weather identification scheme.

Definition at line 140 of file flow-manager.c.

References FatalError, ThreadVars_::name, ThreadVars_::next, SC_ATOMIC_SET, SC_ERR_SHUTDOWN, SCMutexLock, SCMutexUnlock, SleepMsec, thread_name_flow_mgr, THV_KILL, THV_RUNNING_DONE, TmThreadsCheckFlag(), TmThreadsSetFlag(), tv, tv_root, tv_root_lock, and TVT_MGMT.

Referenced by PostRunDeinit().

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◆ FlowDisableFlowRecyclerThread()

void FlowDisableFlowRecyclerThread ( void  )

Used to disable flow recycler thread(s).

Note
this should only be called when the flow manager is already gone
Todo:
Kinda hackish since it uses the tv name to identify flow recycler thread. We need an all weather identification scheme.

Definition at line 1295 of file flow-manager.c.

◆ FlowManagerThreadSpawn()

void FlowManagerThreadSpawn ( )

spawn the flow manager thread

Definition at line 1054 of file flow-manager.c.

References ConfGetInt(), FatalError, and SC_ERR_INVALID_ARGUMENTS.

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◆ FlowRecyclerThreadSpawn()

void FlowRecyclerThreadSpawn ( )

spawn the flow recycler thread

Definition at line 1257 of file flow-manager.c.

References ConfGetInt(), FatalError, and SC_ERR_INVALID_ARGUMENTS.

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◆ FlowTimeoutsEmergency()

void FlowTimeoutsEmergency ( void  )

Definition at line 96 of file flow-manager.c.

References flow_timeouts_emerg, and SC_ATOMIC_SET.

◆ FlowTimeoutsInit()

void FlowTimeoutsInit ( void  )

Definition at line 91 of file flow-manager.c.

References flow_timeouts_normal, and SC_ATOMIC_SET.

Referenced by FlowInitFlowProto().

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◆ SC_ATOMIC_DECLARE() [1/3]

SC_ATOMIC_DECLARE ( uint32_t  ,
flowmgr_cnt   
)

◆ SC_ATOMIC_DECLARE() [2/3]

SC_ATOMIC_DECLARE ( uint32_t  ,
flowrec_busy   
)

◆ SC_ATOMIC_DECLARE() [3/3]

SC_ATOMIC_DECLARE ( uint32_t  ,
flowrec_cnt   
)

◆ SC_ATOMIC_EXTERN()

SC_ATOMIC_EXTERN ( unsigned int  ,
flow_flags   
)

◆ TmModuleFlowManagerRegister()

void TmModuleFlowManagerRegister ( void  )

Definition at line 1355 of file flow-manager.c.

References TmModule_::name, TmModule_::ThreadInit, TMM_FLOWMANAGER, and tmm_modules.

Referenced by RegisterAllModules().

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◆ TmModuleFlowRecyclerRegister()

void TmModuleFlowRecyclerRegister ( void  )

Definition at line 1369 of file flow-manager.c.

References TmModule_::name, TmModule_::ThreadInit, TMM_FLOWRECYCLER, and tmm_modules.

Referenced by RegisterAllModules().

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Variable Documentation

◆ flow_recycle_q

FlowQueue flow_recycle_q

queue to pass flows to cleanup/log thread(s)

Definition at line 77 of file flow-manager.c.

Referenced by FlowInitConfig(), and FlowShutdown().

◆ g_detect_disabled

int g_detect_disabled

global indicating if detection is enabled

Definition at line 215 of file suricata.c.

◆ run_mode

int run_mode

Run mode selected

Definition at line 201 of file suricata.c.