![Tomasz Bursztyka](/assets/img/avatar_default.png)
This patch generalizes the NAT expression to support both IPv4 and IPv6 using the existing IPv4/IPv6 NAT infrastructure. This also adds the NAT chain type for IPv6. This patch collapses the following patches that were posted to the netfilter-devel mailing list, from Tomasz: * nf_tables: Change NFTA_NAT_ attributes to better semantic significance * nf_tables: Split IPv4 NAT into NAT expression and IPv4 NAT chain * nf_tables: Add support for IPv6 NAT expression * nf_tables: Add support for IPv6 NAT chain * nf_tables: Fix up build issue on IPv6 NAT support And, from Pablo Neira Ayuso: * fix missing dependencies in nft_chain_nat Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
252 lines
7.7 KiB
Plaintext
252 lines
7.7 KiB
Plaintext
#
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# IP netfilter configuration
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#
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menu "IPv6: Netfilter Configuration"
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depends on INET && IPV6 && NETFILTER
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config NF_DEFRAG_IPV6
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tristate
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default n
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config NF_CONNTRACK_IPV6
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tristate "IPv6 connection tracking support"
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depends on INET && IPV6 && NF_CONNTRACK
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default m if NETFILTER_ADVANCED=n
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select NF_DEFRAG_IPV6
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---help---
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Connection tracking keeps a record of what packets have passed
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through your machine, in order to figure out how they are related
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into connections.
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This is IPv6 support on Layer 3 independent connection tracking.
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Layer 3 independent connection tracking is experimental scheme
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which generalize ip_conntrack to support other layer 3 protocols.
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To compile it as a module, choose M here. If unsure, say N.
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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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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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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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config IP6_NF_IPTABLES
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tristate "IP6 tables support (required for filtering)"
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depends on INET && IPV6
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select NETFILTER_XTABLES
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default m if NETFILTER_ADVANCED=n
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help
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ip6tables is a general, extensible packet identification framework.
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Currently only the packet filtering and packet mangling subsystem
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for IPv6 use this, but connection tracking is going to follow.
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Say 'Y' or 'M' here if you want to use either of those.
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To compile it as a module, choose M here. If unsure, say N.
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if IP6_NF_IPTABLES
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# The simple matches.
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config IP6_NF_MATCH_AH
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tristate '"ah" match support'
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depends on NETFILTER_ADVANCED
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help
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This module allows one to match AH packets.
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_MATCH_EUI64
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tristate '"eui64" address check'
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depends on NETFILTER_ADVANCED
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help
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This module performs checking on the IPv6 source address
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Compares the last 64 bits with the EUI64 (delivered
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from the MAC address) address
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_MATCH_FRAG
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tristate '"frag" Fragmentation header match support'
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depends on NETFILTER_ADVANCED
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help
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frag matching allows you to match packets based on the fragmentation
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header of the packet.
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_MATCH_OPTS
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tristate '"hbh" hop-by-hop and "dst" opts header match support'
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depends on NETFILTER_ADVANCED
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help
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This allows one to match packets based on the hop-by-hop
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and destination options headers of a packet.
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_MATCH_HL
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tristate '"hl" hoplimit match support'
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depends on NETFILTER_ADVANCED
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select NETFILTER_XT_MATCH_HL
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---help---
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This is a backwards-compat option for the user's convenience
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(e.g. when running oldconfig). It selects
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CONFIG_NETFILTER_XT_MATCH_HL.
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config IP6_NF_MATCH_IPV6HEADER
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tristate '"ipv6header" IPv6 Extension Headers Match'
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default m if NETFILTER_ADVANCED=n
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help
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This module allows one to match packets based upon
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the ipv6 extension headers.
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_MATCH_MH
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tristate '"mh" match support'
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depends on NETFILTER_ADVANCED
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help
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This module allows one to match MH packets.
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_MATCH_RPFILTER
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tristate '"rpfilter" reverse path filter match support'
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depends on NETFILTER_ADVANCED && (IP6_NF_MANGLE || IP6_NF_RAW)
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---help---
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This option allows you to match packets whose replies would
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go out via the interface the packet came in.
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To compile it as a module, choose M here. If unsure, say N.
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The module will be called ip6t_rpfilter.
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config IP6_NF_MATCH_RT
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tristate '"rt" Routing header match support'
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depends on NETFILTER_ADVANCED
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help
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rt matching allows you to match packets based on the routing
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header of the packet.
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To compile it as a module, choose M here. If unsure, say N.
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# The targets
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config IP6_NF_TARGET_HL
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tristate '"HL" hoplimit target support'
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depends on NETFILTER_ADVANCED && IP6_NF_MANGLE
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select NETFILTER_XT_TARGET_HL
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---help---
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This is a backwards-compatible option for the user's convenience
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(e.g. when running oldconfig). It selects
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CONFIG_NETFILTER_XT_TARGET_HL.
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config IP6_NF_FILTER
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tristate "Packet filtering"
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default m if NETFILTER_ADVANCED=n
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help
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Packet filtering defines a table `filter', which has a series of
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rules for simple packet filtering at local input, forwarding and
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local output. See the man page for iptables(8).
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_TARGET_REJECT
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tristate "REJECT target support"
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depends on IP6_NF_FILTER
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default m if NETFILTER_ADVANCED=n
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help
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The REJECT target allows a filtering rule to specify that an ICMPv6
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error should be issued in response to an incoming packet, rather
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than silently being dropped.
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_TARGET_SYNPROXY
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tristate "SYNPROXY target support"
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depends on NF_CONNTRACK && NETFILTER_ADVANCED
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select NETFILTER_SYNPROXY
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select SYN_COOKIES
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help
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The SYNPROXY target allows you to intercept TCP connections and
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establish them using syncookies before they are passed on to the
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server. This allows to avoid conntrack and server resource usage
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during SYN-flood attacks.
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_MANGLE
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tristate "Packet mangling"
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default m if NETFILTER_ADVANCED=n
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help
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This option adds a `mangle' table to iptables: see the man page for
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iptables(8). This table is used for various packet alterations
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which can effect how the packet is routed.
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_RAW
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tristate 'raw table support (required for TRACE)'
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help
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This option adds a `raw' table to ip6tables. This table is the very
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first in the netfilter framework and hooks in at the PREROUTING
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and OUTPUT chains.
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If you want to compile it as a module, say M here and read
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<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
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# security table for MAC policy
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config IP6_NF_SECURITY
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tristate "Security table"
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depends on SECURITY
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depends on NETFILTER_ADVANCED
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help
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This option adds a `security' table to iptables, for use
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with Mandatory Access Control (MAC) policy.
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If unsure, say N.
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config NF_NAT_IPV6
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tristate "IPv6 NAT"
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depends on NF_CONNTRACK_IPV6
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depends on NETFILTER_ADVANCED
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select NF_NAT
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help
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The IPv6 NAT option allows masquerading, port forwarding and other
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forms of full Network Address Port Translation. It is controlled by
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the `nat' table in ip6tables, see the man page for ip6tables(8).
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To compile it as a module, choose M here. If unsure, say N.
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if NF_NAT_IPV6
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config IP6_NF_TARGET_MASQUERADE
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tristate "MASQUERADE target support"
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help
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Masquerading is a special case of NAT: all outgoing connections are
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changed to seem to come from a particular interface's address, and
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if the interface goes down, those connections are lost. This is
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only useful for dialup accounts with dynamic IP address (ie. your IP
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address will be different on next dialup).
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To compile it as a module, choose M here. If unsure, say N.
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config IP6_NF_TARGET_NPT
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tristate "NPT (Network Prefix translation) target support"
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help
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This option adds the `SNPT' and `DNPT' target, which perform
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stateless IPv6-to-IPv6 Network Prefix Translation per RFC 6296.
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To compile it as a module, choose M here. If unsure, say N.
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endif # NF_NAT_IPV6
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endif # IP6_NF_IPTABLES
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endmenu
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