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netfilter: add help information to new nf_tables Kconfig options
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
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@ -39,19 +39,33 @@ config NF_CONNTRACK_PROC_COMPAT
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config NF_TABLES_IPV4
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depends on NF_TABLES
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tristate "IPv4 nf_tables support"
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help
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This option enables the IPv4 support for nf_tables.
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config NFT_CHAIN_ROUTE_IPV4
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depends on NF_TABLES_IPV4
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tristate "IPv4 nf_tables route chain support"
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help
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This option enables the "route" chain for IPv4 in nf_tables. This
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chain type is used to force packet re-routing after mangling header
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fields such as the source, destination, type of service and
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the packet mark.
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config NFT_CHAIN_NAT_IPV4
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depends on NF_TABLES_IPV4
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depends on NF_NAT_IPV4 && NFT_NAT
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tristate "IPv4 nf_tables nat chain support"
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help
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This option enables the "nat" chain for IPv4 in nf_tables. This
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chain type is used to perform Network Address Translation (NAT)
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packet transformations such as the source, destination address and
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source and destination ports.
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config NF_TABLES_ARP
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depends on NF_TABLES
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tristate "ARP nf_tables support"
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help
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This option enables the ARP support for nf_tables.
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config IP_NF_IPTABLES
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tristate "IP tables support (required for filtering/masq/NAT)"
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@ -28,15 +28,27 @@ config NF_CONNTRACK_IPV6
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config NF_TABLES_IPV6
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depends on NF_TABLES
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tristate "IPv6 nf_tables support"
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help
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This option enables the IPv6 support for nf_tables.
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config NFT_CHAIN_ROUTE_IPV6
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depends on NF_TABLES_IPV6
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tristate "IPv6 nf_tables route chain support"
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help
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This option enables the "route" chain for IPv6 in nf_tables. This
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chain type is used to force packet re-routing after mangling header
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fields such as the source, destination, flowlabel, hop-limit and
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the packet mark.
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config NFT_CHAIN_NAT_IPV6
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depends on NF_TABLES_IPV6
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depends on NF_NAT_IPV6 && NFT_NAT
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tristate "IPv6 nf_tables nat chain support"
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help
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This option enables the "nat" chain for IPv6 in nf_tables. This
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chain type is used to perform Network Address Translation (NAT)
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packet transformations such as the source, destination address and
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source and destination ports.
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config IP6_NF_IPTABLES
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tristate "IP6 tables support (required for filtering)"
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@ -416,45 +416,83 @@ endif # NF_CONNTRACK
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config NF_TABLES
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select NETFILTER_NETLINK
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tristate "Netfilter nf_tables support"
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help
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nftables is the new packet classification framework that intends to
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replace the existing {ip,ip6,arp,eb}_tables infrastructure. It
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provides a pseudo-state machine with an extensible instruction-set
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(also known as expressions) that the userspace 'nft' utility
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(http://www.netfilter.org/projects/nftables) uses to build the
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rule-set. It also comes with the generic set infrastructure that
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allows you to construct mappings between matchings and actions
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for performance lookups.
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To compile it as a module, choose M here.
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config NFT_EXTHDR
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depends on NF_TABLES
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tristate "Netfilter nf_tables IPv6 exthdr module"
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help
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This option adds the "exthdr" expression that you can use to match
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IPv6 extension headers.
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config NFT_META
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depends on NF_TABLES
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tristate "Netfilter nf_tables meta module"
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help
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This option adds the "meta" expression that you can use to match and
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to set packet metainformation such as the packet mark.
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config NFT_CT
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depends on NF_TABLES
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depends on NF_CONNTRACK
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tristate "Netfilter nf_tables conntrack module"
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help
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This option adds the "meta" expression that you can use to match
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connection tracking information such as the flow state.
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config NFT_RBTREE
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depends on NF_TABLES
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tristate "Netfilter nf_tables rbtree set module"
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help
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This option adds the "rbtree" set type (Red Black tree) that is used
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to build interval-based sets.
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config NFT_HASH
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depends on NF_TABLES
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tristate "Netfilter nf_tables hash set module"
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help
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This option adds the "hash" set type that is used to build one-way
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mappings between matchings and actions.
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config NFT_COUNTER
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depends on NF_TABLES
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tristate "Netfilter nf_tables counter module"
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help
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This option adds the "counter" expression that you can use to
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include packet and byte counters in a rule.
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config NFT_LOG
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depends on NF_TABLES
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tristate "Netfilter nf_tables log module"
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help
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This option adds the "log" expression that you can use to log
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packets matching some criteria.
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config NFT_LIMIT
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depends on NF_TABLES
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tristate "Netfilter nf_tables limit module"
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help
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This option adds the "limit" expression that you can use to
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ratelimit rule matchings.
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config NFT_NAT
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depends on NF_TABLES
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depends on NF_CONNTRACK
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depends on NF_NAT
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tristate "Netfilter nf_tables nat module"
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help
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This option adds the "nat" expression that you can use to perform
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typical Network Address Translation (NAT) packet transformations.
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config NFT_QUEUE
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depends on NF_TABLES
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@ -470,6 +508,10 @@ config NFT_REJECT
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depends on NF_TABLES_IPV6 || !NF_TABLES_IPV6
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default m if NETFILTER_ADVANCED=n
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tristate "Netfilter nf_tables reject support"
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help
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This option adds the "reject" expression that you can use to
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explicitly deny and notify via TCP reset/ICMP informational errors
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unallowed traffic.
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config NFT_COMPAT
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depends on NF_TABLES
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