Copy over 2.6.36 files to 3.0 - so patch-o-matic finds them
[ipt_ACCOUNT] / linux / include / linux / netfilter_ipv4 / ipt_ACCOUNT.h
index a9160ca..b0bf41f 100644 (file)
+/***************************************************************************
+ *   Copyright (C) 2004-2005 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 128
 #define ACCOUNT_TABLE_NAME_LEN 32
+#define ACCOUNT_MAX_HANDLES 10
+
+/* Structure for the userspace part of ipt_ACCOUNT */
+struct ipt_acc_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_acc_table {
+    char name[ACCOUNT_TABLE_NAME_LEN];     /* name of the table */
+    u_int32_t ip;                          /* base IP of network */
+    u_int32_t netmask;                     /* netmask of the network */
+    unsigned char depth;                   /* size of network: 
+                                                 0: 8 bit, 1: 16bit, 2: 24 bit */
+    u_int32_t refcount;                    /* refcount of this table. 
+                                                 if zero, destroy it */
+    u_int32_t itemcount;                   /* number of IPs in this table */
+    void *data;                            /* pointer to the actual data, 
+                                                 depending on netmask */
+};
+
+/* Internal handle structure */
+struct ipt_acc_handle {
+    u_int32_t ip;                          /* base IP of network. Used for 
+                                                 caculating the final IP during
+                                                 get_data() */
+    unsigned char depth;                   /* size of network. See above for 
+                                                 details */
+    u_int32_t 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_acc_handle_sockopt {
+    u_int32_t handle_nr;                   /* Used for HANDLE_FREE */
+    char name[ACCOUNT_TABLE_NAME_LEN];     /* Used for HANDLE_PREPARE_READ/
+                                                 HANDLE_READ_FLUSH */
+    u_int32_t itemcount;                   /* Used for HANDLE_PREPARE_READ/
+                                                 HANDLE_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_acc_ip {
+    u_int32_t src_packets;
+    u_int32_t src_bytes;
+    u_int32_t dst_packets;
+    u_int32_t dst_bytes;
+};
+
+/*
+    Used for every IP when returning data
+*/
+struct ipt_acc_handle_ip {
+    u_int32_t ip;
+    u_int32_t src_packets;
+    u_int32_t src_bytes;
+    u_int32_t dst_packets;
+    u_int32_t 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_acc_mask_24 {
+    struct ipt_acc_ip ip[256];
+};
+
+struct ipt_acc_mask_16 {
+    struct ipt_acc_mask_24 *mask_24[256];
+};
 
-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;
+struct ipt_acc_mask_8 {
+    struct ipt_acc_mask_16 *mask_16[256];
 };
 
 #endif /*_IPT_ACCOUNT_H*/