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generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-12-18 06:36:30 +0000
al1-5/+24 The next change will merge skb->nfct pointer and skb->nfctinfo status bits into single skb->_nfct (unsigned long) area. For this to work nf_conn addresses must always be aligned at least on an 8 byte boundary since we will need the lower 3bits to store nfctinfo. Conntrack templates are allocated via kmalloc. kbuild test robot reported BUILD_BUG_ON failed: NFCT_INFOMASK >= ARCH_KMALLOC_MINALIGN on v1 of this patchset, so not all platforms meet this requirement. Do manual alignment if needed, the alignment offset is stored in the nf_conn entry protocol area. This works because templates are not handed off to L4 protocol trackers. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: add and use nf_ct_set helperFlorian Westphal10-32/+15 Add a helper to assign a nf_conn entry and the ctinfo bits to an sk_buff. This avoids changing code in followup patch that merges skb->nfct and skb->nfctinfo into skb->_nfct. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02skbuff: add and use skb_nfct helperFlorian Westphal13-25/+25 Followup patch renames skb->nfct and changes its type so add a helper to avoid intrusive rename change later. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: reduce direct skb->nfct usageFlorian Westphal1-6/+9 Next patch makes direct skb->nfct access illegal, reduce noise in next patch by using accessors we already have. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: reset netfilter state when duplicating packetFlorian Westphal2-2/+2 We should also toss nf_bridge_info, if any -- packet is leaving via ip_local_out, also, this skb isn't bridged -- it is a locally generated copy. Also this avoids the need to touch this later when skb->nfct is replaced with 'unsigned long _nfct' in followup patch. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> 2017-02-02netfilter: conntrack: no need to pass ctinfo to error handlerFlorian Westphal7-19/+15 It is never accessed for reading and the only places that write to it are the icmp(6) handlers, which also set skb->nfct (and skb->nfctinfo). The conntrack core specifically checks for attached skb->nfct after ->error() invocation and returns early in this case. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>