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Diffstat (limited to 'framework/src/suricata/src/host-timeout.c')
| -rw-r--r-- | framework/src/suricata/src/host-timeout.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/framework/src/suricata/src/host-timeout.c b/framework/src/suricata/src/host-timeout.c deleted file mode 100644 index c8be4e05..00000000 --- a/framework/src/suricata/src/host-timeout.c +++ /dev/null @@ -1,180 +0,0 @@ -/* Copyright (C) 2007-2012 Open Information Security Foundation - * - * You can copy, redistribute or modify this Program under the terms of - * the GNU General Public License version 2 as published by the Free - * Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -/** - * \file - * - * \author Victor Julien <victor@inliniac.net> - */ - -#include "suricata-common.h" -#include "host.h" - -#include "detect-engine-tag.h" -#include "detect-engine-threshold.h" - -#include "host-bit.h" - -#include "reputation.h" - -uint32_t HostGetSpareCount(void) -{ - return HostSpareQueueGetSize(); -} - -uint32_t HostGetActiveCount(void) -{ - return SC_ATOMIC_GET(host_counter); -} - -/** \internal - * \brief See if we can really discard this host. Check use_cnt reference. - * - * \param h host - * \param ts timestamp - * - * \retval 0 not timed out just yet - * \retval 1 fully timed out, lets kill it - */ -static int HostHostTimedOut(Host *h, struct timeval *ts) -{ - int tags = 0; - int thresholds = 0; - int vars = 0; - - /** never prune a host that is used by a packet - * we are currently processing in one of the threads */ - if (SC_ATOMIC_GET(h->use_cnt) > 0) { - return 0; - } - - if (h->iprep) { - if (SRepHostTimedOut(h) == 0) - return 0; - - SCLogDebug("host %p reputation timed out", h); - } - - if (TagHostHasTag(h) && TagTimeoutCheck(h, ts) == 0) { - tags = 1; - } - if (ThresholdHostHasThreshold(h) && ThresholdTimeoutCheck(h, ts) == 0) { - thresholds = 1; - } - if (HostHasHostBits(h) && HostBitsTimedoutCheck(h, ts) == 0) { - vars = 1; - } - - if (tags || thresholds || vars) - return 0; - - SCLogDebug("host %p timed out", h); - return 1; -} - -/** - * \internal - * - * \brief check all hosts in a hash row for timing out - * - * \param hb host hash row *LOCKED* - * \param h last host in the hash row - * \param ts timestamp - * - * \retval cnt timed out hosts - */ -static uint32_t HostHashRowTimeout(HostHashRow *hb, Host *h, struct timeval *ts) -{ - uint32_t cnt = 0; - - do { - if (SCMutexTrylock(&h->m) != 0) { - h = h->hprev; - continue; - } - - Host *next_host = h->hprev; - - /* check if the host is fully timed out and - * ready to be discarded. */ - if (HostHostTimedOut(h, ts) == 1) { - /* remove from the hash */ - if (h->hprev != NULL) - h->hprev->hnext = h->hnext; - if (h->hnext != NULL) - h->hnext->hprev = h->hprev; - if (hb->head == h) - hb->head = h->hnext; - if (hb->tail == h) - hb->tail = h->hprev; - - h->hnext = NULL; - h->hprev = NULL; - - HostClearMemory (h); - - /* no one is referring to this host, use_cnt 0, removed from hash - * so we can unlock it and move it back to the spare queue. */ - SCMutexUnlock(&h->m); - - /* move to spare list */ - HostMoveToSpare(h); - - cnt++; - } else { - SCMutexUnlock(&h->m); - } - - h = next_host; - } while (h != NULL); - - return cnt; -} - -/** - * \brief time out hosts from the hash - * - * \param ts timestamp - * - * \retval cnt number of timed out host - */ -uint32_t HostTimeoutHash(struct timeval *ts) -{ - uint32_t idx = 0; - uint32_t cnt = 0; - - for (idx = 0; idx < host_config.hash_size; idx++) { - HostHashRow *hb = &host_hash[idx]; - - if (HRLOCK_TRYLOCK(hb) != 0) - continue; - - /* host hash bucket is now locked */ - - if (hb->tail == NULL) { - HRLOCK_UNLOCK(hb); - continue; - } - - /* we have a host, or more than one */ - cnt += HostHashRowTimeout(hb, hb->tail, ts); - HRLOCK_UNLOCK(hb); - } - - return cnt; -} - |