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

#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 (-a option) */
    unsigned char netmask;                    /* netmask of the network (-a option) */
    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 */
};

/* Handle structure for communication with the userspace library */
struct ipt_account_handle
{
    unsigned int ip;                          /* base IP of network */
    unsigned char netmask;                    /* netmask of the network */
    unsigned int itemcount;                   /* number of IPs in this table */
    void *data;                               /* pointer to the actual data, depending on netmask */
};

/* 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 iptt_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
35a8230b TJ	1	#ifndef _IPT_ACCOUNT_H
	2	#define _IPT_ACCOUNT_H
	3
3e722f3c	4	#define ACCOUNT_MAX_TABLES 32
35a8230b	5	#define ACCOUNT_TABLE_NAME_LEN 32
3e722f3c	6	#define ACCOUNT_MAX_HANDLES 10
35a8230b	7
3e722f3c	8	/* Structure for the userspace part of ipt_ACCOUNT */
35a8230b TJ	9	struct ipt_account_info {
	10	u_int32_t net_ip;
	11	u_int32_t net_mask;
	12	char table_name[ACCOUNT_TABLE_NAME_LEN];
	13	int32_t table_nr;
	14	};
	15
3e722f3c TJ	16	/* Internal table structure, generated by check_entry() */
	17	struct ipt_account_table
	18	{
	19	char name[ACCOUNT_TABLE_NAME_LEN]; /* name of the table */
	20	unsigned int ip; /* base IP of network (-a option) */
	21	unsigned char netmask; /* netmask of the network (-a option) */
	22	unsigned int refcount; /* refcount of this table. if zero, destroy it */
	23	unsigned int itemcount; /* number of IPs in this table */
	24	void data; / pointer to the actual data, depending on netmask */
	25	};
	26
	27	/* Handle structure for communication with the userspace library */
	28	struct ipt_account_handle
	29	{
	30	unsigned int ip; /* base IP of network */
	31	unsigned char netmask; /* netmask of the network */
	32	unsigned int itemcount; /* number of IPs in this table */
	33	void data; / pointer to the actual data, depending on netmask */
	34	};
	35
	36	/* Used for every IP entry */
	37	/* Size is 16 bytes so that 256 (class C network) * 16 fits in one kernel (zero) page */
	38	struct ipt_account_ip
	39	{
	40	unsigned int src_packets;
	41	unsigned int src_bytes;
	42	unsigned int dst_packets;
	43	unsigned int dst_bytes;
	44	};
	45
	46	/*
	47	Used for every IP when returning data
	48	*/
	49	struct ipt_account_handle_ip
	50	{
	51	unsigned int ip;
	52	unsigned int src_packets;
	53	unsigned int src_bytes;
	54	unsigned int dst_packets;
	55	unsigned int dst_bytes;
	56	};
	57
	58	/*
	59	The IPs are organized as an array so that direct slot
	60	calculations are possible.
	61	Only 8 bit networks are preallocated, 16/24 bit networks
	62	allocate their slots when needed -> very efficent.
	63	*/
	64	struct ipt_account_mask_24
	65	{
	66	struct ipt_account_ip ip[256];
	67	};
	68
	69	struct iptt_account_mask_16
	70	{
	71	struct ipt_account_mask_24 *mask_24[256];
	72	};
	73
	74	struct ipt_account_mask_8
	75	{
	76	struct ipt_account_mask_16 *mask_16[256];
	77	};
	78
35a8230b	79	#endif /_IPT_ACCOUNT_H/