diff options
Diffstat (limited to 'kernel/net')
| -rw-r--r-- | kernel/net/netfilter/ipset/ip_set_bitmap_ip.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/kernel/net/netfilter/ipset/ip_set_bitmap_ip.c b/kernel/net/netfilter/ipset/ip_set_bitmap_ip.c index 4c0a659..260c339 100644 --- a/kernel/net/netfilter/ipset/ip_set_bitmap_ip.c +++ b/kernel/net/netfilter/ipset/ip_set_bitmap_ip.c @@ -244,6 +244,18 @@ init_map_ip(struct ip_set *set, struct bitmap_ip *map, return true; } +static u32 +range_to_mask(u32 from, u32 to, u8 *bits) +{ + u32 mask = 0xFFFFFFFE; + + *bits = 32; + while (--(*bits) > 0 && mask && (to & mask) != from) + mask <<= 1; + + return mask; +} + static int bitmap_ip_create(struct net *net, struct ip_set *set, struct nlattr *tb[], u32 flags) |