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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 | ||
e5da6d22 | 69 | struct ipt_account_mask_16 |
3e722f3c TJ |
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*/ |