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ACCOUNT: move private struct declarations into .c file

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This commit is contained in:
Jan Engelhardt
2009-10-23 18:02:25 +02:00
parent 304e5e52ca
commit 578af6f726
2 changed files with 62 additions and 54 deletions
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62
extensions/ACCOUNT/xt_ACCOUNT.c
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@@ -42,6 +42,68 @@
#error "ipt_ACCOUNT needs at least a PAGE_SIZE of 4096"
#endif
/**
* Internal table structure, generated by check_entry()
* @name: name of the table
* @ip: base IP address of the network
* @mask: netmask of the network
* @depth: size of network (0: 8-bit, 1: 16-bit, 2: 24-bit)
* @refcount: refcount of the table; if zero, destroy it
* @itemcount: number of IP addresses in this table
* @data; pointer to the actual data, depending on netmask
*/
struct ipt_acc_table {
char name[ACCOUNT_TABLE_NAME_LEN];
uint32_t ip;
uint32_t netmask;
unsigned char depth;
uint32_t refcount;
uint32_t itemcount;
void *data;
};
/**
* Internal handle structure
* @ip: base IP address of the network. Used for caculating the final
* address during get_data().
* @depth: size of the network; see above
* @itemcount: number of addresses in this table
*/
struct ipt_acc_handle {
uint32_t ip;
unsigned char depth;
uint32_t itemcount;
void *data;
};
/* 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 {
uint32_t src_packets;
uint32_t src_bytes;
uint32_t dst_packets;
uint32_t dst_bytes;
};
/*
* The IP addresses 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_acc_mask_8 {
struct ipt_acc_mask_16 *mask_16[256];
};
static struct ipt_acc_table *ipt_acc_tables;
static struct ipt_acc_handle *ipt_acc_handles;
static void *ipt_acc_tmpbuf;