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Commit d497c635 authored by Pablo Neira Ayuso's avatar Pablo Neira Ayuso
Browse files

netfilter: add help information to new nf_tables Kconfig options

parent bee11dc7
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+14 −0
Original line number Diff line number Diff line
@@ -39,19 +39,33 @@ config NF_CONNTRACK_PROC_COMPAT
config NF_TABLES_IPV4
	depends on NF_TABLES
	tristate "IPv4 nf_tables support"
	help
	  This option enables the IPv4 support for nf_tables.

config NFT_CHAIN_ROUTE_IPV4
	depends on NF_TABLES_IPV4
	tristate "IPv4 nf_tables route chain support"
	help
	  This option enables the "route" chain for IPv4 in nf_tables. This
	  chain type is used to force packet re-routing after mangling header
	  fields such as the source, destination, type of service and
	  the packet mark.

config NFT_CHAIN_NAT_IPV4
	depends on NF_TABLES_IPV4
	depends on NF_NAT_IPV4 && NFT_NAT
	tristate "IPv4 nf_tables nat chain support"
	help
	  This option enables the "nat" chain for IPv4 in nf_tables. This
	  chain type is used to perform Network Address Translation (NAT)
	  packet transformations such as the source, destination address and
	  source and destination ports.

config NF_TABLES_ARP
	depends on NF_TABLES
	tristate "ARP nf_tables support"
	help
	  This option enables the ARP support for nf_tables.

config IP_NF_IPTABLES
	tristate "IP tables support (required for filtering/masq/NAT)"
+12 −0
Original line number Diff line number Diff line
@@ -28,15 +28,27 @@ config NF_CONNTRACK_IPV6
config NF_TABLES_IPV6
	depends on NF_TABLES
	tristate "IPv6 nf_tables support"
	help
	  This option enables the IPv6 support for nf_tables.

config NFT_CHAIN_ROUTE_IPV6
	depends on NF_TABLES_IPV6
	tristate "IPv6 nf_tables route chain support"
	help
	  This option enables the "route" chain for IPv6 in nf_tables. This
	  chain type is used to force packet re-routing after mangling header
	  fields such as the source, destination, flowlabel, hop-limit and
	  the packet mark.

config NFT_CHAIN_NAT_IPV6
	depends on NF_TABLES_IPV6
	depends on NF_NAT_IPV6 && NFT_NAT
	tristate "IPv6 nf_tables nat chain support"
	help
	  This option enables the "nat" chain for IPv6 in nf_tables. This
	  chain type is used to perform Network Address Translation (NAT)
	  packet transformations such as the source, destination address and
	  source and destination ports.

config IP6_NF_IPTABLES
	tristate "IP6 tables support (required for filtering)"
+42 −0
Original line number Diff line number Diff line
@@ -416,45 +416,83 @@ endif # NF_CONNTRACK
config NF_TABLES
	select NETFILTER_NETLINK
	tristate "Netfilter nf_tables support"
	help
	  nftables is the new packet classification framework that intends to
	  replace the existing {ip,ip6,arp,eb}_tables infrastructure. It
	  provides a pseudo-state machine with an extensible instruction-set
	  (also known as expressions) that the userspace 'nft' utility
	  (http://www.netfilter.org/projects/nftables) uses to build the
	  rule-set. It also comes with the generic set infrastructure that
	  allows you to construct mappings between matchings and actions
	  for performance lookups.

	  To compile it as a module, choose M here.

config NFT_EXTHDR
	depends on NF_TABLES
	tristate "Netfilter nf_tables IPv6 exthdr module"
	help
	  This option adds the "exthdr" expression that you can use to match
	  IPv6 extension headers.

config NFT_META
	depends on NF_TABLES
	tristate "Netfilter nf_tables meta module"
	help
	  This option adds the "meta" expression that you can use to match and
	  to set packet metainformation such as the packet mark.

config NFT_CT
	depends on NF_TABLES
	depends on NF_CONNTRACK
	tristate "Netfilter nf_tables conntrack module"
	help
	  This option adds the "meta" expression that you can use to match
	  connection tracking information such as the flow state.

config NFT_RBTREE
	depends on NF_TABLES
	tristate "Netfilter nf_tables rbtree set module"
	help
	  This option adds the "rbtree" set type (Red Black tree) that is used
	  to build interval-based sets.

config NFT_HASH
	depends on NF_TABLES
	tristate "Netfilter nf_tables hash set module"
	help
	  This option adds the "hash" set type that is used to build one-way
	  mappings between matchings and actions.

config NFT_COUNTER
	depends on NF_TABLES
	tristate "Netfilter nf_tables counter module"
	help
	  This option adds the "counter" expression that you can use to
	  include packet and byte counters in a rule.

config NFT_LOG
	depends on NF_TABLES
	tristate "Netfilter nf_tables log module"
	help
	  This option adds the "log" expression that you can use to log
	  packets matching some criteria.

config NFT_LIMIT
	depends on NF_TABLES
	tristate "Netfilter nf_tables limit module"
	help
	  This option adds the "limit" expression that you can use to
	  ratelimit rule matchings.

config NFT_NAT
	depends on NF_TABLES
	depends on NF_CONNTRACK
	depends on NF_NAT
	tristate "Netfilter nf_tables nat module"
	help
	  This option adds the "nat" expression that you can use to perform
	  typical Network Address Translation (NAT) packet transformations.

config NFT_QUEUE
	depends on NF_TABLES
@@ -470,6 +508,10 @@ config NFT_REJECT
	depends on NF_TABLES_IPV6 || !NF_TABLES_IPV6
	default m if NETFILTER_ADVANCED=n
	tristate "Netfilter nf_tables reject support"
	help
	  This option adds the "reject" expression that you can use to
	  explicitly deny and notify via TCP reset/ICMP informational errors
	  unallowed traffic.

config NFT_COMPAT
	depends on NF_TABLES