mirror of
git://git.code.sf.net/p/xtables-addons/xtables-addons
synced 2025-09-07 05:05:12 +02:00
57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
#ifndef __IP_SET_IPMAP_H
|
|
#define __IP_SET_IPMAP_H
|
|
|
|
#include "ip_set.h"
|
|
|
|
#define SETTYPE_NAME "ipmap"
|
|
#define MAX_RANGE 0x0000FFFF
|
|
|
|
struct ip_set_ipmap {
|
|
void *members; /* the ipmap proper */
|
|
ip_set_ip_t first_ip; /* host byte order, included in range */
|
|
ip_set_ip_t last_ip; /* host byte order, included in range */
|
|
ip_set_ip_t netmask; /* subnet netmask */
|
|
ip_set_ip_t sizeid; /* size of set in IPs */
|
|
ip_set_ip_t hosts; /* number of hosts in a subnet */
|
|
};
|
|
|
|
struct ip_set_req_ipmap_create {
|
|
ip_set_ip_t from;
|
|
ip_set_ip_t to;
|
|
ip_set_ip_t netmask;
|
|
};
|
|
|
|
struct ip_set_req_ipmap {
|
|
ip_set_ip_t ip;
|
|
};
|
|
|
|
unsigned int
|
|
mask_to_bits(ip_set_ip_t mask)
|
|
{
|
|
unsigned int bits = 32;
|
|
ip_set_ip_t maskaddr;
|
|
|
|
if (mask == 0xFFFFFFFF)
|
|
return bits;
|
|
|
|
maskaddr = 0xFFFFFFFE;
|
|
while (--bits >= 0 && maskaddr != mask)
|
|
maskaddr <<= 1;
|
|
|
|
return bits;
|
|
}
|
|
|
|
ip_set_ip_t
|
|
range_to_mask(ip_set_ip_t from, ip_set_ip_t to, unsigned int *bits)
|
|
{
|
|
ip_set_ip_t mask = 0xFFFFFFFE;
|
|
|
|
*bits = 32;
|
|
while (--(*bits) >= 0 && mask && (to & mask) != from)
|
|
mask <<= 1;
|
|
|
|
return mask;
|
|
}
|
|
|
|
#endif /* __IP_SET_IPMAP_H */
|