suricata/src/source-af-packet.h

/* Copyright (C) 2011 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 Eric Leblond <eric@regit.org>
 */

#ifndef __SOURCE_AFP_H__
#define __SOURCE_AFP_H__

#ifndef HAVE_PACKET_FANOUT /* not defined if linux/if_packet.h trying to force */
#define HAVE_PACKET_FANOUT 1

#define PACKET_FANOUT                  18

#define PACKET_FANOUT_HASH             0
#define PACKET_FANOUT_LB               1
#define PACKET_FANOUT_CPU              2
#define PACKET_FANOUT_FLAG_DEFRAG      0x8000

#else /* HAVE_PACKET_FANOUT */
#include <linux/if_packet.h>
#endif /* HAVE_PACKET_FANOUT */

/* value for flags */
#define AFP_RING_MODE (1<<0)
#define AFP_ZERO_COPY (1<<1)

#define AFP_FILE_MAX_PKTS 256
#define AFP_IFACE_NAME_LENGTH 48

typedef struct AFPIfaceConfig_
{
    char iface[AFP_IFACE_NAME_LENGTH];
    /* number of threads */
    int threads;
    /* socket buffer size */
    int buffer_size;
    /* cluster param */
    int cluster_id;
    int cluster_type;
    /* promisc mode */
    int promisc;
    /* misc use flags including ring mode */
    int flags;
    ChecksumValidationMode checksum_mode;
    SC_ATOMIC_DECLARE(unsigned int, ref);
    void (*DerefFunc)(void *);
} AFPIfaceConfig;

void TmModuleReceiveAFPRegister (void);
void TmModuleDecodeAFPRegister (void);

#endif /* __SOURCE_AFP_H__ */