From d271e8bd8c60ce059ee36d836ba063cfc61c3e21 Mon Sep 17 00:00:00 2001 From: Holger Eitzenberger Date: Thu, 26 Mar 2009 13:37:14 +0100 Subject: [PATCH] ctnetlink: compute generic part of event more acurately On a box with most of the optional Netfilter switches turned off some of the NLAs are never send, e. g. secmark, mark or the conntrack byte/packet counters. As a worst case scenario this may possibly still lead to ctnetlink skbs being reallocated in netlink_trim() later, loosing all the nice effects from the previous patches. I try to solve that (at least partly) by correctly #ifdef'ing the NLAs in the computation. Signed-off-by: Holger Eitzenberger Signed-off-by: Patrick McHardy --- net/netfilter/nf_conntrack_netlink.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c index 03547c60f38..2fb833b130c 100644 --- a/net/netfilter/nf_conntrack_netlink.c +++ b/net/netfilter/nf_conntrack_netlink.c @@ -441,19 +441,28 @@ ctnetlink_alloc_skb(const struct nf_conntrack_tuple *tuple, gfp_t gfp) + 3 * NLA_TYPE_SIZE(u_int8_t) /* CTA_PROTO_NUM */ + NLA_TYPE_SIZE(u_int32_t) /* CTA_ID */ + NLA_TYPE_SIZE(u_int32_t) /* CTA_STATUS */ +#ifdef CONFIG_NF_CT_ACCT + 2 * nla_total_size(0) /* CTA_COUNTERS_ORIG|REPL */ + 2 * NLA_TYPE_SIZE(uint64_t) /* CTA_COUNTERS_PACKETS */ + 2 * NLA_TYPE_SIZE(uint64_t) /* CTA_COUNTERS_BYTES */ +#endif + NLA_TYPE_SIZE(u_int32_t) /* CTA_TIMEOUT */ + nla_total_size(0) /* CTA_PROTOINFO */ + nla_total_size(0) /* CTA_HELP */ + nla_total_size(NF_CT_HELPER_NAME_LEN) /* CTA_HELP_NAME */ +#ifdef CONFIG_NF_CONNTRACK_SECMARK + NLA_TYPE_SIZE(u_int32_t) /* CTA_SECMARK */ +#endif +#ifdef CONFIG_NF_NAT_NEEDED + 2 * nla_total_size(0) /* CTA_NAT_SEQ_ADJ_ORIG|REPL */ + 2 * NLA_TYPE_SIZE(u_int32_t) /* CTA_NAT_SEQ_CORRECTION_POS */ + 2 * NLA_TYPE_SIZE(u_int32_t) /* CTA_NAT_SEQ_CORRECTION_BEFORE */ + 2 * NLA_TYPE_SIZE(u_int32_t) /* CTA_NAT_SEQ_CORRECTION_AFTER */ - + NLA_TYPE_SIZE(u_int32_t); /* CTA_MARK */ +#endif +#ifdef CONFIG_NF_CONNTRACK_MARK + + NLA_TYPE_SIZE(u_int32_t) /* CTA_MARK */ +#endif + ; #undef NLA_TYPE_SIZE