100468e9c0
Add a new xtables target, CONNSECMARK, which is used to specify rules for copying security marks from packets to connections, and for copyying security marks back from connections to packets. This is similar to the CONNMARK target, but is more limited in scope in that it only allows copying of security marks to and from packets, as this is all it needs to do. A typical scenario would be to apply a security mark to a 'new' packet with SECMARK, then copy that to its conntrack via CONNMARK, and then restore the security mark from the connection to established and related packets on that connection. Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
440 lines
15 KiB
Text
440 lines
15 KiB
Text
menu "Core Netfilter Configuration"
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depends on NET && NETFILTER
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config NETFILTER_NETLINK
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tristate "Netfilter netlink interface"
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help
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If this option is enabled, the kernel will include support
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for the new netfilter netlink interface.
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config NETFILTER_NETLINK_QUEUE
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tristate "Netfilter NFQUEUE over NFNETLINK interface"
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depends on NETFILTER_NETLINK
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help
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If this option is enabled, the kernel will include support
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for queueing packets via NFNETLINK.
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config NETFILTER_NETLINK_LOG
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tristate "Netfilter LOG over NFNETLINK interface"
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depends on NETFILTER_NETLINK
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help
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If this option is enabled, the kernel will include support
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for logging packets via NFNETLINK.
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This obsoletes the existing ipt_ULOG and ebg_ulog mechanisms,
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and is also scheduled to replace the old syslog-based ipt_LOG
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and ip6t_LOG modules.
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config NF_CONNTRACK
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tristate "Layer 3 Independent Connection tracking (EXPERIMENTAL)"
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depends on EXPERIMENTAL && IP_NF_CONNTRACK=n
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default n
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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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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_CT_ACCT
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bool "Connection tracking flow accounting"
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depends on NF_CONNTRACK
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help
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If this option is enabled, the connection tracking code will
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keep per-flow packet and byte counters.
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Those counters can be used for flow-based accounting or the
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`connbytes' match.
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If unsure, say `N'.
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config NF_CONNTRACK_MARK
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bool 'Connection mark tracking support'
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depends on NF_CONNTRACK
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help
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This option enables support for connection marks, used by the
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`CONNMARK' target and `connmark' match. Similar to the mark value
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of packets, but this mark value is kept in the conntrack session
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instead of the individual packets.
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config NF_CONNTRACK_SECMARK
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bool 'Connection tracking security mark support'
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depends on NF_CONNTRACK && NETWORK_SECMARK
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help
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This option enables security markings to be applied to
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connections. Typically they are copied to connections from
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packets using the CONNSECMARK target and copied back from
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connections to packets with the same target, with the packets
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being originally labeled via SECMARK.
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If unsure, say 'N'.
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config NF_CONNTRACK_EVENTS
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bool "Connection tracking events (EXPERIMENTAL)"
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depends on EXPERIMENTAL && NF_CONNTRACK
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help
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If this option is enabled, the connection tracking code will
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provide a notifier chain that can be used by other kernel code
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to get notified about changes in the connection tracking state.
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If unsure, say `N'.
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config NF_CT_PROTO_SCTP
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tristate 'SCTP protocol on new connection tracking support (EXPERIMENTAL)'
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depends on EXPERIMENTAL && NF_CONNTRACK
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default n
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help
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With this option enabled, the layer 3 independent connection
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tracking code will be able to do state tracking on SCTP connections.
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If you want to compile it as a module, say M here and read
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Documentation/modules.txt. If unsure, say `N'.
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config NF_CONNTRACK_FTP
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tristate "FTP support on new connection tracking (EXPERIMENTAL)"
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depends on EXPERIMENTAL && NF_CONNTRACK
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help
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Tracking FTP connections is problematic: special helpers are
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required for tracking them, and doing masquerading and other forms
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of Network Address Translation on them.
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This is FTP 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_CT_NETLINK
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tristate 'Connection tracking netlink interface (EXPERIMENTAL)'
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depends on EXPERIMENTAL && NF_CONNTRACK && NETFILTER_NETLINK
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depends on NF_CONNTRACK!=y || NETFILTER_NETLINK!=m
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help
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This option enables support for a netlink-based userspace interface
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config NETFILTER_XTABLES
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tristate "Netfilter Xtables support (required for ip_tables)"
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help
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This is required if you intend to use any of ip_tables,
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ip6_tables or arp_tables.
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# alphabetically ordered list of targets
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config NETFILTER_XT_TARGET_CLASSIFY
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tristate '"CLASSIFY" target support'
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depends on NETFILTER_XTABLES
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help
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This option adds a `CLASSIFY' target, which enables the user to set
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the priority of a packet. Some qdiscs can use this value for
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classification, among these are:
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atm, cbq, dsmark, pfifo_fast, htb, prio
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_TARGET_CONNMARK
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tristate '"CONNMARK" target support'
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depends on NETFILTER_XTABLES
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depends on IP_NF_MANGLE || IP6_NF_MANGLE
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depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK)
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help
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This option adds a `CONNMARK' target, which allows one to manipulate
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the connection mark value. Similar to the MARK target, but
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affects the connection mark value rather than the packet mark value.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. The module will be called
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ipt_CONNMARK.o. If unsure, say `N'.
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config NETFILTER_XT_TARGET_MARK
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tristate '"MARK" target support'
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depends on NETFILTER_XTABLES
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help
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This option adds a `MARK' target, which allows you to create rules
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in the `mangle' table which alter the netfilter mark (nfmark) field
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associated with the packet prior to routing. This can change
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the routing method (see `Use netfilter MARK value as routing
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key') and can also be used by other subsystems to change their
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behavior.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_TARGET_NFQUEUE
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tristate '"NFQUEUE" target Support'
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depends on NETFILTER_XTABLES
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help
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This target replaced the old obsolete QUEUE target.
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As opposed to QUEUE, it supports 65535 different queues,
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not just one.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_TARGET_NOTRACK
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tristate '"NOTRACK" target support'
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depends on NETFILTER_XTABLES
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depends on IP_NF_RAW || IP6_NF_RAW
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depends on IP_NF_CONNTRACK || NF_CONNTRACK
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help
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The NOTRACK target allows a select rule to specify
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which packets *not* to enter the conntrack/NAT
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subsystem with all the consequences (no ICMP error tracking,
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no protocol helpers for the selected packets).
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config NETFILTER_XT_TARGET_SECMARK
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tristate '"SECMARK" target support'
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depends on NETFILTER_XTABLES && NETWORK_SECMARK
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help
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The SECMARK target allows security marking of network
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packets, for use with security subsystems.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_TARGET_CONNSECMARK
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tristate '"CONNSECMARK" target support'
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depends on NETFILTER_XTABLES && (NF_CONNTRACK_SECMARK || IP_NF_CONNTRACK_SECMARK)
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help
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The CONNSECMARK target copies security markings from packets
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to connections, and restores security markings from connections
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to packets (if the packets are not already marked). This would
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normally be used in conjunction with the SECMARK target.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_COMMENT
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tristate '"comment" match support'
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depends on NETFILTER_XTABLES
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help
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This option adds a `comment' dummy-match, which allows you to put
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comments in your iptables ruleset.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config NETFILTER_XT_MATCH_CONNBYTES
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tristate '"connbytes" per-connection counter match support'
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depends on NETFILTER_XTABLES
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depends on (IP_NF_CONNTRACK && IP_NF_CT_ACCT) || (NF_CT_ACCT && NF_CONNTRACK)
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help
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This option adds a `connbytes' match, which allows you to match the
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number of bytes and/or packets for each direction within a connection.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config NETFILTER_XT_MATCH_CONNMARK
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tristate '"connmark" connection mark match support'
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depends on NETFILTER_XTABLES
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depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK)
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help
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This option adds a `connmark' match, which allows you to match the
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connection mark value previously set for the session by `CONNMARK'.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. The module will be called
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ipt_connmark.o. If unsure, say `N'.
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config NETFILTER_XT_MATCH_CONNTRACK
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tristate '"conntrack" connection tracking match support'
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depends on NETFILTER_XTABLES
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depends on IP_NF_CONNTRACK || NF_CONNTRACK
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help
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This is a general conntrack match module, a superset of the state match.
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It allows matching on additional conntrack information, which is
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useful in complex configurations, such as NAT gateways with multiple
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internet links or tunnels.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_DCCP
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tristate '"DCCP" protocol match support'
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depends on NETFILTER_XTABLES
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help
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With this option enabled, you will be able to use the iptables
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`dccp' match in order to match on DCCP source/destination ports
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and DCCP flags.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config NETFILTER_XT_MATCH_ESP
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tristate '"ESP" match support'
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depends on NETFILTER_XTABLES
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help
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This match extension allows you to match a range of SPIs
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inside ESP header of IPSec packets.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_HELPER
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tristate '"helper" match support'
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depends on NETFILTER_XTABLES
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depends on IP_NF_CONNTRACK || NF_CONNTRACK
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help
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Helper matching allows you to match packets in dynamic connections
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tracked by a conntrack-helper, ie. ip_conntrack_ftp
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To compile it as a module, choose M here. If unsure, say Y.
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config NETFILTER_XT_MATCH_LENGTH
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tristate '"length" match support'
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depends on NETFILTER_XTABLES
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help
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This option allows you to match the length of a packet against a
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specific value or range of values.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_LIMIT
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tristate '"limit" match support'
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depends on NETFILTER_XTABLES
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help
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limit matching allows you to control the rate at which a rule can be
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matched: mainly useful in combination with the LOG target ("LOG
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target support", below) and to avoid some Denial of Service attacks.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_MAC
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tristate '"mac" address match support'
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depends on NETFILTER_XTABLES
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help
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MAC matching allows you to match packets based on the source
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Ethernet address 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 NETFILTER_XT_MATCH_MARK
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tristate '"mark" match support'
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depends on NETFILTER_XTABLES
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help
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Netfilter mark matching allows you to match packets based on the
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`nfmark' value in the packet. This can be set by the MARK target
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(see below).
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_POLICY
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tristate 'IPsec "policy" match support'
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depends on NETFILTER_XTABLES && XFRM
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help
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Policy matching allows you to match packets based on the
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IPsec policy that was used during decapsulation/will
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be used during encapsulation.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_MULTIPORT
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tristate "Multiple port match support"
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depends on NETFILTER_XTABLES
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help
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Multiport matching allows you to match TCP or UDP packets based on
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a series of source or destination ports: normally a rule can only
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match a single range of ports.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_PHYSDEV
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tristate '"physdev" match support'
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depends on NETFILTER_XTABLES && BRIDGE_NETFILTER
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help
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Physdev packet matching matches against the physical bridge ports
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the IP packet arrived on or will leave by.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_PKTTYPE
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tristate '"pkttype" packet type match support'
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depends on NETFILTER_XTABLES
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help
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Packet type matching allows you to match a packet by
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its "class", eg. BROADCAST, MULTICAST, ...
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Typical usage:
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iptables -A INPUT -m pkttype --pkt-type broadcast -j LOG
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_QUOTA
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tristate '"quota" match support'
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depends on NETFILTER_XTABLES
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help
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This option adds a `quota' match, which allows to match on a
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byte counter.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config NETFILTER_XT_MATCH_REALM
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tristate '"realm" match support'
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depends on NETFILTER_XTABLES
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select NET_CLS_ROUTE
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help
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This option adds a `realm' match, which allows you to use the realm
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key from the routing subsystem inside iptables.
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This match pretty much resembles the CONFIG_NET_CLS_ROUTE4 option
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in tc world.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config NETFILTER_XT_MATCH_SCTP
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tristate '"sctp" protocol match support'
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depends on NETFILTER_XTABLES
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help
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With this option enabled, you will be able to use the
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`sctp' match in order to match on SCTP source/destination ports
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and SCTP chunk types.
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If you want to compile it as a module, say M here and read
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<file:Documentation/modules.txt>. If unsure, say `N'.
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config NETFILTER_XT_MATCH_STATE
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tristate '"state" match support'
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depends on NETFILTER_XTABLES
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depends on IP_NF_CONNTRACK || NF_CONNTRACK
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help
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Connection state matching allows you to match packets based on their
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relationship to a tracked connection (ie. previous packets). This
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is a powerful tool for packet classification.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_STATISTIC
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tristate '"statistic" match support'
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depends on NETFILTER_XTABLES
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help
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statistic module
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config NETFILTER_XT_MATCH_STRING
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tristate '"string" match support'
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depends on NETFILTER_XTABLES
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select TEXTSEARCH
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select TEXTSEARCH_KMP
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select TEXTSEARCH_BM
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select TEXTSEARCH_FSM
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help
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This option adds a `string' match, which allows you to look for
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pattern matchings in packets.
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To compile it as a module, choose M here. If unsure, say N.
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config NETFILTER_XT_MATCH_TCPMSS
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tristate '"tcpmss" match support'
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depends on NETFILTER_XTABLES
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help
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This option adds a `tcpmss' match, which allows you to examine the
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MSS value of TCP SYN packets, which control the maximum packet size
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for that connection.
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To compile it as a module, choose M here. If unsure, say N.
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endmenu
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