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66 lines
2.3 KiB
C
66 lines
2.3 KiB
C
/* Copyright (C) 2007-2026 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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* Lightweight indirection layer for capture-related callbacks.
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*
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* This module lets the capture implementation register small hooks that the
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* generic engine can invoke without hard dependencies. Two hooks are used:
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* - on-alerts: invoked when a packet produced alerts so capture can update
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* per-input stats (e.g., deciding if a pcap should be deleted or kept).
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* - on-pseudo-created: invoked when the engine creates pseudo packets (e.g.,
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* flow timeout or shutdown flush). This allows capture to retain references
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* or track alert outcomes tied to those pseudo packets.
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*/
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#include "suricata-common.h"
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#include "capture-hooks.h"
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static CaptureOnPacketWithAlertsHook g_on_alerts_hook = NULL;
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static CaptureOnPseudoPacketCreatedHook g_on_pseudo_created_hook = NULL;
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void CaptureHooksSet(
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CaptureOnPacketWithAlertsHook OnAlerts, CaptureOnPseudoPacketCreatedHook OnPseudoCreated)
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{
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/* Allow re-setting the same hooks (e.g. during pcap file reload), but BUG_ON
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* if overwriting with different ones without clearing. */
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if (g_on_alerts_hook != NULL) {
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BUG_ON(g_on_alerts_hook != OnAlerts);
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}
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if (g_on_pseudo_created_hook != NULL) {
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BUG_ON(g_on_pseudo_created_hook != OnPseudoCreated);
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}
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g_on_alerts_hook = OnAlerts;
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g_on_pseudo_created_hook = OnPseudoCreated;
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}
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void CaptureHooksOnPacketWithAlerts(const Packet *p)
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{
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if (g_on_alerts_hook != NULL) {
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g_on_alerts_hook(p);
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}
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}
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void CaptureHooksOnPseudoPacketCreated(Packet *p)
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{
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if (g_on_pseudo_created_hook != NULL) {
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g_on_pseudo_created_hook(p);
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}
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}
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