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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 | 19 | struct ipt_account_info { |
2ea7a43c TJ |
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; | |
35a8230b TJ |
24 | }; |
25 | ||
3e722f3c | 26 | /* Internal table structure, generated by check_entry() */ |
2ea7a43c | 27 | struct ipt_account_table { |
3e722f3c | 28 | char name[ACCOUNT_TABLE_NAME_LEN]; /* name of the table */ |
70288420 TJ |
29 | unsigned int ip; /* base IP of network */ |
30 | unsigned int netmask; /* netmask of the network */ | |
bea3921b | 31 | unsigned char depth; /* size of network: 0: 8 bit, 1: 16bit, 2: 24 bit */ |
3e722f3c TJ |
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 | ||
bea3921b | 37 | /* Internal handle structure */ |
2ea7a43c | 38 | struct ipt_account_handle { |
bea3921b TJ |
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 */ | |
3e722f3c | 41 | unsigned int itemcount; /* number of IPs in this table */ |
bea3921b TJ |
42 | void *data; /* pointer to the actual data, depending on size */ |
43 | }; | |
44 | ||
45 | /* Handle structure for communication with the userspace library */ | |
2ea7a43c | 46 | struct ipt_account_handle_sockopt { |
bea3921b TJ |
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 */ | |
3e722f3c TJ |
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 */ | |
2ea7a43c | 54 | struct ipt_account_ip { |
3e722f3c TJ |
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 | */ | |
2ea7a43c | 64 | struct ipt_account_handle_ip { |
3e722f3c TJ |
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 | */ | |
2ea7a43c TJ |
78 | struct ipt_account_mask_24 { |
79 | struct ipt_account_ip ip[256]; | |
3e722f3c TJ |
80 | }; |
81 | ||
2ea7a43c | 82 | struct ipt_account_mask_16 { |
3e722f3c TJ |
83 | struct ipt_account_mask_24 *mask_24[256]; |
84 | }; | |
85 | ||
2ea7a43c | 86 | struct ipt_account_mask_8 { |
3e722f3c TJ |
87 | struct ipt_account_mask_16 *mask_16[256]; |
88 | }; | |
89 | ||
35a8230b | 90 | #endif /*_IPT_ACCOUNT_H*/ |