git://developer.intra2net.com / ipt_ACCOUNT / blame
| Commit | Line | Data |
|---|---|---|
| 54756114 TJ |
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 | ||
| 35a8230b TJ |
11 | #ifndef _IPT_ACCOUNT_H |
| 12 | #define _IPT_ACCOUNT_H | |
| 13 | ||
| 3e722f3c | 14 | #define ACCOUNT_MAX_TABLES 32 |
| 35a8230b | 15 | #define ACCOUNT_TABLE_NAME_LEN 32 |
| 3e722f3c | 16 | #define ACCOUNT_MAX_HANDLES 10 |
| 35a8230b | 17 | |
| 3e722f3c | 18 | /* Structure for the userspace part of ipt_ACCOUNT */ |
| 35a8230b TJ |
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 | ||
| 3e722f3c TJ |
26 | /* Internal table structure, generated by check_entry() */ |
| 27 | struct ipt_account_table | |
| 28 | { | |
| 29 | char name[ACCOUNT_TABLE_NAME_LEN]; /* name of the table */ | |
| 70288420 TJ |
30 | unsigned int ip; /* base IP of network */ |
| 31 | unsigned int netmask; /* netmask of the network */ | |
| bea3921b | 32 | unsigned char depth; /* size of network: 0: 8 bit, 1: 16bit, 2: 24 bit */ |
| 3e722f3c TJ |
33 | unsigned int refcount; /* refcount of this table. if zero, destroy it */ |
| 34 | unsigned int itemcount; /* number of IPs in this table */ | |
| 35 | void *data; /* pointer to the actual data, depending on netmask */ | |
| 36 | }; | |
| 37 | ||
| bea3921b | 38 | /* Internal handle structure */ |
| 3e722f3c TJ |
39 | struct ipt_account_handle |
| 40 | { | |
| bea3921b TJ |
41 | unsigned int ip; /* base IP of network. Used for caculating the final IP during get_data() */ |
| 42 | unsigned char depth; /* size of network. See above for details */ | |
| 3e722f3c | 43 | unsigned int itemcount; /* number of IPs in this table */ |
| bea3921b TJ |
44 | void *data; /* pointer to the actual data, depending on size */ |
| 45 | }; | |
| 46 | ||
| 47 | /* Handle structure for communication with the userspace library */ | |
| 48 | struct ipt_account_handle_sockopt | |
| 49 | { | |
| 50 | unsigned int handle_nr; /* Used for HANDLE_FREE */ | |
| 51 | char name[ACCOUNT_TABLE_NAME_LEN]; /* Used for HANDLE_PREPARE_READ/READ_FLUSH */ | |
| 52 | unsigned int itemcount; /* Used for HANDLE_PREPARE_READ/READ_FLUSH */ | |
| 3e722f3c TJ |
53 | }; |
| 54 | ||
| 55 | /* Used for every IP entry */ | |
| 56 | /* Size is 16 bytes so that 256 (class C network) * 16 fits in one kernel (zero) page */ | |
| 57 | struct ipt_account_ip | |
| 58 | { | |
| 59 | unsigned int src_packets; | |
| 60 | unsigned int src_bytes; | |
| 61 | unsigned int dst_packets; | |
| 62 | unsigned int dst_bytes; | |
| 63 | }; | |
| 64 | ||
| 65 | /* | |
| 66 | Used for every IP when returning data | |
| 67 | */ | |
| 68 | struct ipt_account_handle_ip | |
| 69 | { | |
| 70 | unsigned int ip; | |
| 71 | unsigned int src_packets; | |
| 72 | unsigned int src_bytes; | |
| 73 | unsigned int dst_packets; | |
| 74 | unsigned int dst_bytes; | |
| 75 | }; | |
| 76 | ||
| 77 | /* | |
| 78 | The IPs are organized as an array so that direct slot | |
| 79 | calculations are possible. | |
| 80 | Only 8 bit networks are preallocated, 16/24 bit networks | |
| 81 | allocate their slots when needed -> very efficent. | |
| 82 | */ | |
| 83 | struct ipt_account_mask_24 | |
| 84 | { | |
| 85 | struct ipt_account_ip ip[256]; | |
| 86 | }; | |
| 87 | ||
| e5da6d22 | 88 | struct ipt_account_mask_16 |
| 3e722f3c TJ |
89 | { |
| 90 | struct ipt_account_mask_24 *mask_24[256]; | |
| 91 | }; | |
| 92 | ||
| 93 | struct ipt_account_mask_8 | |
| 94 | { | |
| 95 | struct ipt_account_mask_16 *mask_16[256]; | |
| 96 | }; | |
| 97 | ||
| 35a8230b | 98 | #endif /*_IPT_ACCOUNT_H*/ |