proto_v4.h

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/*
 ** Copyright (C) 2002-2006 INL
 ** Written by Eric Leblond <eric@regit.org>
 **            Vincent Deffontaines <vincent@gryzor.com>
 ** INL http://www.inl.fr/
 **
 ** $Id: proto_v4.h 5285 2008-11-21 15:39:55Z pollux $
 **
 ** This program is free software; you can redistribute it and/or modify
 ** it under the terms of the GNU General Public License as published by
 ** the Free Software Foundation, version 3 of the License.
 **
 ** 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
 ** along with this program; if not, write to the Free Software
 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#ifndef NUFW_PROTOCOL_V4_H
#define NUFW_PROTOCOL_V4_H

#include <netinet/in.h>         /* struct in6addr */
#ifdef LINUX
#   ifdef USE_NFQUEUE
#       include <linux/if.h>
#   else
#       define IFNAMSIZ 16
#   endif
#else
#define IFNAMSIZ 16
#endif

/* 
 * Protocol 4 definition 
 */

#define aligned_u64 unsigned long long __attribute__((aligned(8)))

struct nuv4_conntrack_message_t {
        /* Copy/paste nufw_to_nuauth_message_header_t content */
        uint8_t protocol_version;       
        uint8_t msg_type;       
        uint16_t msg_length;    
        /* Conntrack fields */
        uint32_t timeout;       
        struct in6_addr ip_src; 
        struct in6_addr ip_dst; 
        uint8_t ip_protocol;    
        uint16_t src_port;      
        uint16_t dest_port;     
        /* mark field */
        u_int32_t mark;

        /* counters fields */
        aligned_u64 packets_in;
        aligned_u64 bytes_in;
        aligned_u64 packets_out;
        aligned_u64 bytes_out;

};

typedef struct {
        /* Copy/paste nufw_to_nuauth_message_header_t content */
        uint8_t protocol_version;       
        uint8_t msg_type;       
        uint16_t msg_length;    
        /* Authentification fields */
        uint32_t packet_id;     
        uint32_t timestamp;     
        u_int32_t mark;
        char indev[IFNAMSIZ];
        char physindev[IFNAMSIZ];
        char outdev[IFNAMSIZ];
        char physoutdev[IFNAMSIZ];

        /* (...): packet content (maybe truncated) */
} nuv4_nufw_to_nuauth_auth_message_t;

typedef struct {
        uint8_t protocol_version;       
        uint8_t msg_type;       
        u_int8_t decision;      
        u_int8_t priority;      
        uint32_t packet_id;     
        u_int32_t tcmark;       
        uint16_t payload_len;   
        uint16_t padding;       
} nuv4_nuauth_decision_response_t;

#endif

---