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Diffstat (limited to 'net/ipv4/netfilter/Kconfig')
| -rw-r--r-- | net/ipv4/netfilter/Kconfig | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig new file mode 100644 index 000000000..fb20f3631 --- /dev/null +++ b/net/ipv4/netfilter/Kconfig @@ -0,0 +1,406 @@ +# +# IP netfilter configuration +# + +menu "IP: Netfilter Configuration" + depends on INET && NETFILTER + +config NF_DEFRAG_IPV4 + tristate + default n + +config NF_CONNTRACK_IPV4 + tristate "IPv4 connection tracking support (required for NAT)" + depends on NF_CONNTRACK + default m if NETFILTER_ADVANCED=n + select NF_DEFRAG_IPV4 + ---help--- + Connection tracking keeps a record of what packets have passed + through your machine, in order to figure out how they are related + into connections. + + This is IPv4 support on Layer 3 independent connection tracking. + Layer 3 independent connection tracking is experimental scheme + which generalize ip_conntrack to support other layer 3 protocols. + + To compile it as a module, choose M here. If unsure, say N. + +config NF_CONNTRACK_PROC_COMPAT + bool "proc/sysctl compatibility with old connection tracking" + depends on NF_CONNTRACK_PROCFS && NF_CONNTRACK_IPV4 + default y + help + This option enables /proc and sysctl compatibility with the old + layer 3 dependent connection tracking. This is needed to keep + old programs that have not been adapted to the new names working. + + If unsure, say Y. + +if NF_TABLES + +config NF_TABLES_IPV4 + tristate "IPv4 nf_tables support" + help + This option enables the IPv4 support for nf_tables. + +if NF_TABLES_IPV4 + +config NFT_CHAIN_ROUTE_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_REJECT_IPV4 + select NF_REJECT_IPV4 + default NFT_REJECT + tristate + +endif # NF_TABLES_IPV4 + +config NF_TABLES_ARP + tristate "ARP nf_tables support" + help + This option enables the ARP support for nf_tables. + +endif # NF_TABLES + +config NF_LOG_ARP + tristate "ARP packet logging" + default m if NETFILTER_ADVANCED=n + select NF_LOG_COMMON + +config NF_LOG_IPV4 + tristate "IPv4 packet logging" + default m if NETFILTER_ADVANCED=n + select NF_LOG_COMMON + +config NF_REJECT_IPV4 + tristate "IPv4 packet rejection" + default m if NETFILTER_ADVANCED=n + +config NF_NAT_IPV4 + tristate "IPv4 NAT" + depends on NF_CONNTRACK_IPV4 + default m if NETFILTER_ADVANCED=n + select NF_NAT + help + The IPv4 NAT option allows masquerading, port forwarding and other + forms of full Network Address Port Translation. This can be + controlled by iptables or nft. + +if NF_NAT_IPV4 + +config NFT_CHAIN_NAT_IPV4 + depends on NF_TABLES_IPV4 + 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_NAT_MASQUERADE_IPV4 + tristate "IPv4 masquerade support" + help + This is the kernel functionality to provide NAT in the masquerade + flavour (automatic source address selection). + +config NFT_MASQ_IPV4 + tristate "IPv4 masquerading support for nf_tables" + depends on NF_TABLES_IPV4 + depends on NFT_MASQ + select NF_NAT_MASQUERADE_IPV4 + help + This is the expression that provides IPv4 masquerading support for + nf_tables. + +config NFT_REDIR_IPV4 + tristate "IPv4 redirect support for nf_tables" + depends on NF_TABLES_IPV4 + depends on NFT_REDIR + select NF_NAT_REDIRECT + help + This is the expression that provides IPv4 redirect support for + nf_tables. + +config NF_NAT_SNMP_BASIC + tristate "Basic SNMP-ALG support" + depends on NF_CONNTRACK_SNMP + depends on NETFILTER_ADVANCED + default NF_NAT && NF_CONNTRACK_SNMP + ---help--- + + This module implements an Application Layer Gateway (ALG) for + SNMP payloads. In conjunction with NAT, it allows a network + management system to access multiple private networks with + conflicting addresses. It works by modifying IP addresses + inside SNMP payloads to match IP-layer NAT mapping. + + This is the "basic" form of SNMP-ALG, as described in RFC 2962 + + To compile it as a module, choose M here. If unsure, say N. + +config NF_NAT_PROTO_GRE + tristate + depends on NF_CT_PROTO_GRE + +config NF_NAT_PPTP + tristate + depends on NF_CONNTRACK + default NF_CONNTRACK_PPTP + select NF_NAT_PROTO_GRE + +config NF_NAT_H323 + tristate + depends on NF_CONNTRACK + default NF_CONNTRACK_H323 + +endif # NF_NAT_IPV4 + +config IP_NF_IPTABLES + tristate "IP tables support (required for filtering/masq/NAT)" + default m if NETFILTER_ADVANCED=n + select NETFILTER_XTABLES + help + iptables is a general, extensible packet identification framework. + The packet filtering and full NAT (masquerading, port forwarding, + etc) subsystems now use this: say `Y' or `M' here if you want to use + either of those. + + To compile it as a module, choose M here. If unsure, say N. + +if IP_NF_IPTABLES + +# The matches. +config IP_NF_MATCH_AH + tristate '"ah" match support' + depends on NETFILTER_ADVANCED + help + This match extension allows you to match a range of SPIs + inside AH header of IPSec packets. + + To compile it as a module, choose M here. If unsure, say N. + +config IP_NF_MATCH_ECN + tristate '"ecn" match support' + depends on NETFILTER_ADVANCED + select NETFILTER_XT_MATCH_ECN + ---help--- + This is a backwards-compat option for the user's convenience + (e.g. when running oldconfig). It selects + CONFIG_NETFILTER_XT_MATCH_ECN. + +config IP_NF_MATCH_RPFILTER + tristate '"rpfilter" reverse path filter match support' + depends on NETFILTER_ADVANCED && (IP_NF_MANGLE || IP_NF_RAW) + ---help--- + This option allows you to match packets whose replies would + go out via the interface the packet came in. + + To compile it as a module, choose M here. If unsure, say N. + The module will be called ipt_rpfilter. + +config IP_NF_MATCH_TTL + tristate '"ttl" match support' + depends on NETFILTER_ADVANCED + select NETFILTER_XT_MATCH_HL + ---help--- + This is a backwards-compat option for the user's convenience + (e.g. when running oldconfig). It selects + CONFIG_NETFILTER_XT_MATCH_HL. + +# `filter', generic and specific targets +config IP_NF_FILTER + tristate "Packet filtering" + default m if NETFILTER_ADVANCED=n + help + Packet filtering defines a table `filter', which has a series of + rules for simple packet filtering at local input, forwarding and + local output. See the man page for iptables(8). + + To compile it as a module, choose M here. If unsure, say N. + +config IP_NF_TARGET_REJECT + tristate "REJECT target support" + depends on IP_NF_FILTER + select NF_REJECT_IPV4 + default m if NETFILTER_ADVANCED=n + help + The REJECT target allows a filtering rule to specify that an ICMP + error should be issued in response to an incoming packet, rather + than silently being dropped. + + To compile it as a module, choose M here. If unsure, say N. + +config IP_NF_TARGET_SYNPROXY + tristate "SYNPROXY target support" + depends on NF_CONNTRACK && NETFILTER_ADVANCED + select NETFILTER_SYNPROXY + select SYN_COOKIES + help + The SYNPROXY target allows you to intercept TCP connections and + establish them using syncookies before they are passed on to the + server. This allows to avoid conntrack and server resource usage + during SYN-flood attacks. + + To compile it as a module, choose M here. If unsure, say N. + +# NAT + specific targets: nf_conntrack +config IP_NF_NAT + tristate "iptables NAT support" + depends on NF_CONNTRACK_IPV4 + default m if NETFILTER_ADVANCED=n + select NF_NAT + select NF_NAT_IPV4 + select NETFILTER_XT_NAT + help + This enables the `nat' table in iptables. This allows masquerading, + port forwarding and other forms of full Network Address Port + Translation. + + To compile it as a module, choose M here. If unsure, say N. + +if IP_NF_NAT + +config IP_NF_TARGET_MASQUERADE + tristate "MASQUERADE target support" + select NF_NAT_MASQUERADE_IPV4 + default m if NETFILTER_ADVANCED=n + help + Masquerading is a special case of NAT: all outgoing connections are + changed to seem to come from a particular interface's address, and + if the interface goes down, those connections are lost. This is + only useful for dialup accounts with dynamic IP address (ie. your IP + address will be different on next dialup). + + To compile it as a module, choose M here. If unsure, say N. + +config IP_NF_TARGET_NETMAP + tristate "NETMAP target support" + depends on NETFILTER_ADVANCED + select NETFILTER_XT_TARGET_NETMAP + ---help--- + This is a backwards-compat option for the user's convenience + (e.g. when running oldconfig). It selects + CONFIG_NETFILTER_XT_TARGET_NETMAP. + +config IP_NF_TARGET_REDIRECT + tristate "REDIRECT target support" + depends on NETFILTER_ADVANCED + select NETFILTER_XT_TARGET_REDIRECT + ---help--- + This is a backwards-compat option for the user's convenience + (e.g. when running oldconfig). It selects + CONFIG_NETFILTER_XT_TARGET_REDIRECT. + +endif # IP_NF_NAT + +# mangle + specific targets +config IP_NF_MANGLE + tristate "Packet mangling" + default m if NETFILTER_ADVANCED=n + help + This option adds a `mangle' table to iptables: see the man page for + iptables(8). This table is used for various packet alterations + which can effect how the packet is routed. + + To compile it as a module, choose M here. If unsure, say N. + +config IP_NF_TARGET_CLUSTERIP + tristate "CLUSTERIP target support" + depends on IP_NF_MANGLE + depends on NF_CONNTRACK_IPV4 + depends on NETFILTER_ADVANCED + select NF_CONNTRACK_MARK + help + The CLUSTERIP target allows you to build load-balancing clusters of + network servers without having a dedicated load-balancing + router/server/switch. + + To compile it as a module, choose M here. If unsure, say N. + +config IP_NF_TARGET_ECN + tristate "ECN target support" + depends on IP_NF_MANGLE + depends on NETFILTER_ADVANCED + ---help--- + This option adds a `ECN' target, which can be used in the iptables mangle + table. + + You can use this target to remove the ECN bits from the IPv4 header of + an IP packet. This is particularly useful, if you need to work around + existing ECN blackholes on the internet, but don't want to disable + ECN support in general. + + To compile it as a module, choose M here. If unsure, say N. + +config IP_NF_TARGET_TTL + tristate '"TTL" target support' + depends on NETFILTER_ADVANCED && IP_NF_MANGLE + select NETFILTER_XT_TARGET_HL + ---help--- + This is a backwards-compatible option for the user's convenience + (e.g. when running oldconfig). It selects + CONFIG_NETFILTER_XT_TARGET_HL. + +# raw + specific targets +config IP_NF_RAW + tristate 'raw table support (required for NOTRACK/TRACE)' + help + This option adds a `raw' table to iptables. This table is the very + first in the netfilter framework and hooks in at the PREROUTING + and OUTPUT chains. + + If you want to compile it as a module, say M here and read + <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. + +# security table for MAC policy +config IP_NF_SECURITY + tristate "Security table" + depends on SECURITY + depends on NETFILTER_ADVANCED + help + This option adds a `security' table to iptables, for use + with Mandatory Access Control (MAC) policy. + + If unsure, say N. + +endif # IP_NF_IPTABLES + +# ARP tables +config IP_NF_ARPTABLES + tristate "ARP tables support" + select NETFILTER_XTABLES + depends on NETFILTER_ADVANCED + help + arptables is a general, extensible packet identification framework. + The ARP packet filtering and mangling (manipulation)subsystems + use this: say Y or M here if you want to use either of those. + + To compile it as a module, choose M here. If unsure, say N. + +if IP_NF_ARPTABLES + +config IP_NF_ARPFILTER + tristate "ARP packet filtering" + help + ARP packet filtering defines a table `filter', which has a series of + rules for simple ARP packet filtering at local input and + local output. On a bridge, you can also specify filtering rules + for forwarded ARP packets. See the man page for arptables(8). + + To compile it as a module, choose M here. If unsure, say N. + +config IP_NF_ARP_MANGLE + tristate "ARP payload mangling" + help + Allows altering the ARP packet payload: source and destination + hardware and network addresses. + +endif # IP_NF_ARPTABLES + +endmenu + |