3876d22dba62ebf6582f33e1ef2160eeb95e1129 |
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09-Jan-2014 |
Patrick McHardy <kaber@trash.net> |
netfilter: nf_tables: rename nft_do_chain_pktinfo() to nft_do_chain() We don't encode argument types into function names and since besides nft_do_chain() there are only AF-specific versions, there is no risk of confusion. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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fa2c1de0bbd98985f7f930205de97ae0d3e86c16 |
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09-Jan-2014 |
Patrick McHardy <kaber@trash.net> |
netfilter: nf_tables: minor nf_chain_type cleanups Minor nf_chain_type cleanups: - reorder struct to plug a hoe - rename struct module member to "owner" for consistency - rename nf_hookfn array to "hooks" for consistency - reorder initializers for better readability Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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2a37d755b885995443f11cdcaf1f9d4b5f246eab |
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09-Jan-2014 |
Patrick McHardy <kaber@trash.net> |
netfilter: nf_tables: constify chain type definitions and pointers Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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0ca743a5599199152a31a7146b83213c786c2eb2 |
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14-Oct-2013 |
Pablo Neira Ayuso <pablo@netfilter.org> |
netfilter: nf_tables: add compatibility layer for x_tables This patch adds the x_tables compatibility layer. This allows you to use existing x_tables matches and targets from nf_tables. This compatibility later allows us to use existing matches/targets for features that are still missing in nf_tables. We can progressively replace them with native nf_tables extensions. It also provides the userspace compatibility software that allows you to express the rule-set using the iptables syntax but using the nf_tables kernel components. In order to get this compatibility layer working, I've done the following things: * add NFNL_SUBSYS_NFT_COMPAT: this new nfnetlink subsystem is used to query the x_tables match/target revision, so we don't need to use the native x_table getsockopt interface. * emulate xt structures: this required extending the struct nft_pktinfo to include the fragment offset, which is already obtained from ip[6]_tables and that is used by some matches/targets. * add support for default policy to base chains, required to emulate x_tables. * add NFTA_CHAIN_USE attribute to obtain the number of references to chains, required by x_tables emulation. * add chain packet/byte counters using per-cpu. * support 32-64 bits compat. For historical reasons, this patch includes the following patches that were posted in the netfilter-devel mailing list. From Pablo Neira Ayuso: * nf_tables: add default policy to base chains * netfilter: nf_tables: add NFTA_CHAIN_USE attribute * nf_tables: nft_compat: private data of target and matches in contiguous area * nf_tables: validate hooks for compat match/target * nf_tables: nft_compat: release cached matches/targets * nf_tables: x_tables support as a compile time option * nf_tables: fix alias for xtables over nftables module * nf_tables: add packet and byte counters per chain * nf_tables: fix per-chain counter stats if no counters are passed * nf_tables: don't bump chain stats * nf_tables: add protocol and flags for xtables over nf_tables * nf_tables: add ip[6]t_entry emulation * nf_tables: move specific layer 3 compat code to nf_tables_ipv[4|6] * nf_tables: support 32bits-64bits x_tables compat * nf_tables: fix compilation if CONFIG_COMPAT is disabled From Patrick McHardy: * nf_tables: move policy to struct nft_base_chain * nf_tables: send notifications for base chain policy changes From Alexander Primak: * nf_tables: remove the duplicate NF_INET_LOCAL_OUT From Nicolas Dichtel: * nf_tables: fix compilation when nf-netlink is a module Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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9370761c56b66aa5c65e069a7b010111a025018d |
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10-Oct-2013 |
Pablo Neira Ayuso <pablo@netfilter.org> |
netfilter: nf_tables: convert built-in tables/chains to chain types This patch converts built-in tables/chains to chain types that allows you to deploy customized table and chain configurations from userspace. After this patch, you have to specify the chain type when creating a new chain: add chain ip filter output { type filter hook input priority 0; } ^^^^ ------ The existing chain types after this patch are: filter, route and nat. Note that tables are just containers of chains with no specific semantics, which is a significant change with regards to iptables. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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