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Diffstat (limited to 'framework/src/suricata/src/detect-engine-tag.h')
-rw-r--r-- | framework/src/suricata/src/detect-engine-tag.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/framework/src/suricata/src/detect-engine-tag.h b/framework/src/suricata/src/detect-engine-tag.h new file mode 100644 index 00000000..93243cef --- /dev/null +++ b/framework/src/suricata/src/detect-engine-tag.h @@ -0,0 +1,63 @@ +/* Copyright (C) 2007-2010 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 detect-engine-tag.h + * + * \author Pablo Rincon Crespo <pablo.rincon.crespo@gmail.com> + * + * Implements a global context to store data related to hosts flagged + * tag keyword + */ + +#ifndef __DETECT_ENGINE_TAG_H__ +#define __DETECT_ENGINE_TAG_H__ + +#include "host.h" +#include "detect.h" + +/* This limit should be overwriten/predefined at the config file + * to limit the options to prevent possible DOS situations. We should also + * create a limit for bytes and a limit for number of packets */ +#define TAG_MAX_LAST_TIME_SEEN 600 + +#define TAG_TIMEOUT_CHECK_INTERVAL 60 + +/* Used for tagged data (sid and gid of the packets that + * follow the one that triggered the rule with tag option) */ +#define TAG_SIG_GEN 2 +#define TAG_SIG_ID 1 + +int TagHashAddTag(DetectTagDataEntry *, Packet *); +int TagFlowAdd(Packet *, DetectTagDataEntry *); + +void TagContextDestroy(void); +void TagHandlePacket(DetectEngineCtx *, DetectEngineThreadCtx *, Packet *); + +void TagInitCtx(void); +void TagDestroyCtx(void); +void TagRestartCtx(void); + +int TagTimeoutCheck(Host *, struct timeval *); + +int TagHostHasTag(Host *host); + +void DetectEngineTagRegisterTests(void); + +#endif /* __DETECT_ENGINE_TAG_H__ */ + + |