[ipt_ACCOUNT] / linux / include / linux / netfilter_ipv4 / ipt_ACCOUNT.h

/***************************************************************************
 *   Copyright (C) 2004 by Intra2net AG                                    *
 *   opensource@intra2net.com                                              *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License                  *
 *   version 2 as published by the Free Software Foundation;               *
 *                                                                         *
 ***************************************************************************/

#ifndef _IPT_ACCOUNT_H
#define _IPT_ACCOUNT_H

#define ACCOUNT_MAX_TABLES 32
#define ACCOUNT_TABLE_NAME_LEN 32
#define ACCOUNT_MAX_HANDLES 10

/* Structure for the userspace part of ipt_ACCOUNT */
struct ipt_account_info {
    u_int32_t net_ip;
    u_int32_t net_mask;
    char table_name[ACCOUNT_TABLE_NAME_LEN];
    int32_t table_nr;
};

/* Internal table structure, generated by check_entry() */
struct ipt_account_table {
    char name[ACCOUNT_TABLE_NAME_LEN];        /* name of the table */
    unsigned int ip;                          /* base IP of network */
    unsigned int netmask;                     /* netmask of the network */
    unsigned char depth;                      /* size of network: 0: 8 bit, 1: 16bit, 2: 24 bit */
    unsigned int refcount;                    /* refcount of this table. if zero, destroy it */
    unsigned int itemcount;                   /* number of IPs in this table */
    void *data;                               /* pointer to the actual data, depending on netmask */
};

/* Internal handle structure */
struct ipt_account_handle {
    unsigned int ip;                          /* base IP of network. Used for caculating the final IP during get_data() */
    unsigned char depth;                      /* size of network. See above for details */
    unsigned int itemcount;                   /* number of IPs in this table */
    void *data;                               /* pointer to the actual data, depending on size */
};

/* Handle structure for communication with the userspace library */
struct ipt_account_handle_sockopt {
    unsigned int handle_nr;                   /* Used for HANDLE_FREE */
    char name[ACCOUNT_TABLE_NAME_LEN];        /* Used for HANDLE_PREPARE_READ/READ_FLUSH */
    unsigned int itemcount;                   /* Used for HANDLE_PREPARE_READ/READ_FLUSH */
};

/* Used for every IP entry */
/* Size is 16 bytes so that 256 (class C network) * 16 fits in one kernel (zero) page */
struct ipt_account_ip {
    unsigned int src_packets;
    unsigned int src_bytes;
    unsigned int dst_packets;
    unsigned int dst_bytes;
};

/*
    Used for every IP when returning data
*/
struct ipt_account_handle_ip {
    unsigned int ip;
    unsigned int src_packets;
    unsigned int src_bytes;
    unsigned int dst_packets;
    unsigned int dst_bytes;
};

/*
    The IPs are organized as an array so that direct slot
    calculations are possible.
    Only 8 bit networks are preallocated, 16/24 bit networks
    allocate their slots when needed -> very efficent.
*/
struct ipt_account_mask_24 {
    struct ipt_account_ip ip[256];
};

struct ipt_account_mask_16 {
    struct ipt_account_mask_24 *mask_24[256];
};

struct ipt_account_mask_8 {
    struct ipt_account_mask_16 *mask_16[256];
};

#endif /*_IPT_ACCOUNT_H*/
Commit	Line	Data
	1	/***************************************************************************
	2	* Copyright (C) 2004 by Intra2net AG *
	3	* opensource@intra2net.com *
	4	* *
	5	* This program is free software; you can redistribute it and/or modify *
	6	* it under the terms of the GNU General Public License *
	7	* version 2 as published by the Free Software Foundation; *
	8	* *
	9	***************************************************************************/
	10
	11	#ifndef _IPT_ACCOUNT_H
	12	#define _IPT_ACCOUNT_H
	13
	14	#define ACCOUNT_MAX_TABLES 32
	15	#define ACCOUNT_TABLE_NAME_LEN 32
	16	#define ACCOUNT_MAX_HANDLES 10
	17
	18	/* Structure for the userspace part of ipt_ACCOUNT */
	19	struct ipt_account_info {
	20	u_int32_t net_ip;
	21	u_int32_t net_mask;
	22	char table_name[ACCOUNT_TABLE_NAME_LEN];
	23	int32_t table_nr;
	24	};
	25
	26	/* Internal table structure, generated by check_entry() */
	27	struct ipt_account_table {
	28	char name[ACCOUNT_TABLE_NAME_LEN]; /* name of the table */
	29	unsigned int ip; /* base IP of network */
	30	unsigned int netmask; /* netmask of the network */
	31	unsigned char depth; /* size of network: 0: 8 bit, 1: 16bit, 2: 24 bit */
	32	unsigned int refcount; /* refcount of this table. if zero, destroy it */
	33	unsigned int itemcount; /* number of IPs in this table */
	34	void data; / pointer to the actual data, depending on netmask */
	35	};
	36
	37	/* Internal handle structure */
	38	struct ipt_account_handle {
	39	unsigned int ip; /* base IP of network. Used for caculating the final IP during get_data() */
	40	unsigned char depth; /* size of network. See above for details */
	41	unsigned int itemcount; /* number of IPs in this table */
	42	void data; / pointer to the actual data, depending on size */
	43	};
	44
	45	/* Handle structure for communication with the userspace library */
	46	struct ipt_account_handle_sockopt {
	47	unsigned int handle_nr; /* Used for HANDLE_FREE */
	48	char name[ACCOUNT_TABLE_NAME_LEN]; /* Used for HANDLE_PREPARE_READ/READ_FLUSH */
	49	unsigned int itemcount; /* Used for HANDLE_PREPARE_READ/READ_FLUSH */
	50	};
	51
	52	/* Used for every IP entry */
	53	/* Size is 16 bytes so that 256 (class C network) * 16 fits in one kernel (zero) page */
	54	struct ipt_account_ip {
	55	unsigned int src_packets;
	56	unsigned int src_bytes;
	57	unsigned int dst_packets;
	58	unsigned int dst_bytes;
	59	};
	60
	61	/*
	62	Used for every IP when returning data
	63	*/
	64	struct ipt_account_handle_ip {
	65	unsigned int ip;
	66	unsigned int src_packets;
	67	unsigned int src_bytes;
	68	unsigned int dst_packets;
	69	unsigned int dst_bytes;
	70	};
	71
	72	/*
	73	The IPs are organized as an array so that direct slot
	74	calculations are possible.
	75	Only 8 bit networks are preallocated, 16/24 bit networks
	76	allocate their slots when needed -> very efficent.
	77	*/
	78	struct ipt_account_mask_24 {
	79	struct ipt_account_ip ip[256];
	80	};
	81
	82	struct ipt_account_mask_16 {
	83	struct ipt_account_mask_24 *mask_24[256];
	84	};
	85
	86	struct ipt_account_mask_8 {
	87	struct ipt_account_mask_16 *mask_16[256];
	88	};
	89
	90	#endif /_IPT_ACCOUNT_H/