suricata
defrag-stack.h
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/* Copyright (C) 2007-2024 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \file
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*
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* \author Victor Julien <victor@inliniac.net>
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*/
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#ifndef SURICATA_DEFRAG_QUEUE_H
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#define SURICATA_DEFRAG_QUEUE_H
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#include "
suricata-common.h
"
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#include "
defrag.h
"
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/** Spinlocks or Mutex for the defrag tracker queues. */
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//#define DQLOCK_SPIN
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#define DQLOCK_MUTEX
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#ifdef DQLOCK_SPIN
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#ifdef DQLOCK_MUTEX
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#error Cannot enable both DQLOCK_SPIN and DQLOCK_MUTEX
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#endif
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#endif
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/* Define a queue for storing defrag trackers */
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typedef
struct
DefragTrackerStack_
{
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DefragTracker
*
s
;
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uint32_t
len
;
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#ifdef DBG_PERF
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uint32_t dbg_maxlen;
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#endif
/* DBG_PERF */
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#ifdef DQLOCK_MUTEX
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SCMutex
m
;
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#elif defined DQLOCK_SPIN
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SCSpinlock
s
;
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#else
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#error Enable DQLOCK_SPIN or DQLOCK_MUTEX
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#endif
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}
DefragTrackerStack
;
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#ifdef DQLOCK_SPIN
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#define DQLOCK_INIT(q) SCSpinInit(&(q)->s, 0)
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#define DQLOCK_DESTROY(q) SCSpinDestroy(&(q)->s)
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#define DQLOCK_LOCK(q) SCSpinLock(&(q)->s)
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#define DQLOCK_TRYLOCK(q) SCSpinTrylock(&(q)->s)
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#define DQLOCK_UNLOCK(q) SCSpinUnlock(&(q)->s)
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#elif defined DQLOCK_MUTEX
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#define DQLOCK_INIT(q) SCMutexInit(&(q)->m, NULL)
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#define DQLOCK_DESTROY(q) SCMutexDestroy(&(q)->m)
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#define DQLOCK_LOCK(q) SCMutexLock(&(q)->m)
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#define DQLOCK_TRYLOCK(q) SCMutexTrylock(&(q)->m)
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#define DQLOCK_UNLOCK(q) SCMutexUnlock(&(q)->m)
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#else
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#error Enable DQLOCK_SPIN or DQLOCK_MUTEX
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#endif
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/* prototypes */
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DefragTrackerStack
*
DefragTrackerStackInit
(
DefragTrackerStack
*);
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void
DefragTrackerStackDestroy
(
DefragTrackerStack
*);
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void
DefragTrackerEnqueue
(
DefragTrackerStack
*,
DefragTracker
*);
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DefragTracker
*
DefragTrackerDequeue
(
DefragTrackerStack
*);
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#endif
/* SURICATA_DEFRAG_QUEUE_H */
DefragTrackerStackDestroy
void DefragTrackerStackDestroy(DefragTrackerStack *)
Destroy a tracker queue.
Definition:
defrag-stack.c:46
DefragTrackerStack_::m
SCMutex m
Definition:
defrag-stack.h:48
DefragTracker_
Definition:
defrag.h:84
DefragTrackerEnqueue
void DefragTrackerEnqueue(DefragTrackerStack *, DefragTracker *)
add a tracker to a queue
Definition:
defrag-stack.c:57
defrag.h
DefragTrackerStack_
Definition:
defrag-stack.h:41
DefragTrackerStack_::s
DefragTracker * s
Definition:
defrag-stack.h:42
suricata-common.h
DefragTrackerStack_::len
uint32_t len
Definition:
defrag-stack.h:43
SCSpinlock
#define SCSpinlock
Definition:
threads-debug.h:234
DefragTrackerStackInit
DefragTrackerStack * DefragTrackerStackInit(DefragTrackerStack *)
Definition:
defrag-stack.c:32
DefragTrackerDequeue
DefragTracker * DefragTrackerDequeue(DefragTrackerStack *)
remove a tracker from the queue
Definition:
defrag-stack.c:81
DefragTrackerStack
struct DefragTrackerStack_ DefragTrackerStack
SCMutex
#define SCMutex
Definition:
threads-debug.h:114
src
defrag-stack.h
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