diff options
Diffstat (limited to 'kernel/ip_set_ipmap.c')
| -rw-r--r-- | kernel/ip_set_ipmap.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/kernel/ip_set_ipmap.c b/kernel/ip_set_ipmap.c deleted file mode 100644 index be3c538..0000000 --- a/kernel/ip_set_ipmap.c +++ /dev/null @@ -1,158 +0,0 @@ -/* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu> - * Patrick Schaaf <bof@bof.de> - * Copyright (C) 2003-2008 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* Kernel module implementing an IP set type: the single bitmap type */ - -#include <linux/module.h> -#include <linux/ip.h> -#include <linux/skbuff.h> -#include <linux/errno.h> -#include <asm/uaccess.h> -#include <asm/bitops.h> -#include <linux/spinlock.h> - -#include <linux/netfilter_ipv4/ip_set_ipmap.h> - -static inline ip_set_ip_t -ip_to_id(const struct ip_set_ipmap *map, ip_set_ip_t ip) -{ - return ((ip & map->netmask) - map->first_ip)/map->hosts; -} - -static inline int -ipmap_test(const struct ip_set *set, ip_set_ip_t ip) -{ - const struct ip_set_ipmap *map = set->data; - - if (ip < map->first_ip || ip > map->last_ip) - return -ERANGE; - - DP("set: %s, ip:%u.%u.%u.%u", set->name, HIPQUAD(ip)); - return !!test_bit(ip_to_id(map, ip), map->members); -} - -#define KADT_CONDITION - -UADT(ipmap, test) -KADT(ipmap, test, ipaddr) - -static inline int -ipmap_add(struct ip_set *set, ip_set_ip_t ip) -{ - struct ip_set_ipmap *map = set->data; - - if (ip < map->first_ip || ip > map->last_ip) - return -ERANGE; - - DP("set: %s, ip:%u.%u.%u.%u", set->name, HIPQUAD(ip)); - if (test_and_set_bit(ip_to_id(map, ip), map->members)) - return -EEXIST; - - return 0; -} - -UADT(ipmap, add) -KADT(ipmap, add, ipaddr) - -static inline int -ipmap_del(struct ip_set *set, ip_set_ip_t ip) -{ - struct ip_set_ipmap *map = set->data; - - if (ip < map->first_ip || ip > map->last_ip) - return -ERANGE; - - DP("set: %s, ip:%u.%u.%u.%u", set->name, HIPQUAD(ip)); - if (!test_and_clear_bit(ip_to_id(map, ip), map->members)) - return -EEXIST; - - return 0; -} - -UADT(ipmap, del) -KADT(ipmap, del, ipaddr) - -static inline int -__ipmap_create(const struct ip_set_req_ipmap_create *req, - struct ip_set_ipmap *map) -{ - map->netmask = req->netmask; - - if (req->netmask == 0xFFFFFFFF) { - map->hosts = 1; - map->sizeid = map->last_ip - map->first_ip + 1; - } else { - unsigned int mask_bits, netmask_bits; - ip_set_ip_t mask; - - map->first_ip &= map->netmask; /* Should we better bark? */ - - mask = range_to_mask(map->first_ip, map->last_ip, &mask_bits); - netmask_bits = mask_to_bits(map->netmask); - - if ((!mask && (map->first_ip || map->last_ip != 0xFFFFFFFF)) - || netmask_bits <= mask_bits) - return -ENOEXEC; - - DP("mask_bits %u, netmask_bits %u", - mask_bits, netmask_bits); - map->hosts = 2 << (32 - netmask_bits - 1); - map->sizeid = 2 << (netmask_bits - mask_bits - 1); - } - if (map->sizeid > MAX_RANGE + 1) { - ip_set_printk("range too big, %d elements (max %d)", - map->sizeid, MAX_RANGE+1); - return -ENOEXEC; - } - DP("hosts %u, sizeid %u", map->hosts, map->sizeid); - return bitmap_bytes(0, map->sizeid - 1); -} - -BITMAP_CREATE(ipmap) -BITMAP_DESTROY(ipmap) -BITMAP_FLUSH(ipmap) - -static inline void -__ipmap_list_header(const struct ip_set_ipmap *map, - struct ip_set_req_ipmap_create *header) -{ - header->netmask = map->netmask; -} - -BITMAP_LIST_HEADER(ipmap) -BITMAP_LIST_MEMBERS_SIZE(ipmap, ip_set_ip_t, map->sizeid, - test_bit(i, map->members)) - -static void -ipmap_list_members(const struct ip_set *set, void *data, char dont_align) -{ - const struct ip_set_ipmap *map = set->data; - uint32_t i, n = 0; - ip_set_ip_t *d; - - if (dont_align) { - memcpy(data, map->members, map->size); - return; - } - - for (i = 0; i < map->sizeid; i++) - if (test_bit(i, map->members)) { - d = data + n * IPSET_ALIGN(sizeof(ip_set_ip_t)); - *d = map->first_ip + i * map->hosts; - n++; - } -} - -IP_SET_TYPE(ipmap, IPSET_TYPE_IP | IPSET_DATA_SINGLE) - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>"); -MODULE_DESCRIPTION("ipmap type of IP sets"); - -REGISTER_MODULE(ipmap) |