From a54dad51a83ba08e951191ce3e1e9eb44750c0bb Mon Sep 17 00:00:00 2001 From: Eric B Munson Date: Mon, 10 Oct 2016 21:59:21 +0200 Subject: [PATCH] netfilter: ipset: Add element count to hash headers It would be useful for userspace to query the size of an ipset hash, however, this data is not exposed to userspace outside of counting the number of member entries. This patch uses the attribute IPSET_ATTR_ELEMENTS to indicate the size in the the header that is exported to userspace. This field is then printed by the userspace tool for hashes. Signed-off-by: Eric B Munson Cc: Pablo Neira Ayuso Cc: Josh Hunt Cc: netfilter-devel@vger.kernel.org Signed-off-by: Jozsef Kadlecsik --- net/netfilter/ipset/ip_set_hash_gen.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h index d32fd6b..f5acfb9 100644 --- a/net/netfilter/ipset/ip_set_hash_gen.h +++ b/net/netfilter/ipset/ip_set_hash_gen.h @@ -1083,7 +1083,8 @@ mtype_head(struct ip_set *set, struct sk_buff *skb) goto nla_put_failure; #endif if (nla_put_net32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref)) || - nla_put_net32(skb, IPSET_ATTR_MEMSIZE, htonl(memsize))) + nla_put_net32(skb, IPSET_ATTR_MEMSIZE, htonl(memsize)) || + nla_put_net32(skb, IPSET_ATTR_ELEMENTS, htonl(h->elements))) goto nla_put_failure; if (unlikely(ip_set_put_flags(skb, set))) goto nla_put_failure; -- 2.7.4