711 lines
25 KiB
Plaintext
711 lines
25 KiB
Plaintext
menu "Core Netfilter Configuration"
|
|
depends on NET && INET && NETFILTER
|
|
|
|
config NETFILTER_NETLINK
|
|
tristate "Netfilter netlink interface"
|
|
help
|
|
If this option is enabled, the kernel will include support
|
|
for the new netfilter netlink interface.
|
|
|
|
config NETFILTER_NETLINK_QUEUE
|
|
tristate "Netfilter NFQUEUE over NFNETLINK interface"
|
|
depends on NETFILTER_NETLINK
|
|
help
|
|
If this option is enabled, the kernel will include support
|
|
for queueing packets via NFNETLINK.
|
|
|
|
config NETFILTER_NETLINK_LOG
|
|
tristate "Netfilter LOG over NFNETLINK interface"
|
|
depends on NETFILTER_NETLINK
|
|
help
|
|
If this option is enabled, the kernel will include support
|
|
for logging packets via NFNETLINK.
|
|
|
|
This obsoletes the existing ipt_ULOG and ebg_ulog mechanisms,
|
|
and is also scheduled to replace the old syslog-based ipt_LOG
|
|
and ip6t_LOG modules.
|
|
|
|
# Rename this to NF_CONNTRACK in a 2.6.25
|
|
config NF_CONNTRACK_ENABLED
|
|
tristate "Netfilter connection tracking support"
|
|
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 required to do Masquerading or other kinds of Network
|
|
Address Translation (except for Fast NAT). It can also be used to
|
|
enhance packet filtering (see `Connection state match support'
|
|
below).
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NF_CONNTRACK
|
|
tristate
|
|
default NF_CONNTRACK_ENABLED
|
|
|
|
config NF_CT_ACCT
|
|
bool "Connection tracking flow accounting"
|
|
depends on NF_CONNTRACK
|
|
help
|
|
If this option is enabled, the connection tracking code will
|
|
keep per-flow packet and byte counters.
|
|
|
|
Those counters can be used for flow-based accounting or the
|
|
`connbytes' match.
|
|
|
|
If unsure, say `N'.
|
|
|
|
config NF_CONNTRACK_MARK
|
|
bool 'Connection mark tracking support'
|
|
depends on NF_CONNTRACK
|
|
help
|
|
This option enables support for connection marks, used by the
|
|
`CONNMARK' target and `connmark' match. Similar to the mark value
|
|
of packets, but this mark value is kept in the conntrack session
|
|
instead of the individual packets.
|
|
|
|
config NF_CONNTRACK_SECMARK
|
|
bool 'Connection tracking security mark support'
|
|
depends on NF_CONNTRACK && NETWORK_SECMARK
|
|
help
|
|
This option enables security markings to be applied to
|
|
connections. Typically they are copied to connections from
|
|
packets using the CONNSECMARK target and copied back from
|
|
connections to packets with the same target, with the packets
|
|
being originally labeled via SECMARK.
|
|
|
|
If unsure, say 'N'.
|
|
|
|
config NF_CONNTRACK_EVENTS
|
|
bool "Connection tracking events (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL && NF_CONNTRACK
|
|
help
|
|
If this option is enabled, the connection tracking code will
|
|
provide a notifier chain that can be used by other kernel code
|
|
to get notified about changes in the connection tracking state.
|
|
|
|
If unsure, say `N'.
|
|
|
|
config NF_CT_PROTO_GRE
|
|
tristate
|
|
depends on NF_CONNTRACK
|
|
|
|
config NF_CT_PROTO_SCTP
|
|
tristate 'SCTP protocol connection tracking support (EXPERIMENTAL)'
|
|
depends on EXPERIMENTAL && NF_CONNTRACK
|
|
default n
|
|
help
|
|
With this option enabled, the layer 3 independent connection
|
|
tracking code will be able to do state tracking on SCTP connections.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
|
|
|
|
config NF_CT_PROTO_UDPLITE
|
|
tristate 'UDP-Lite protocol connection tracking support (EXPERIMENTAL)'
|
|
depends on EXPERIMENTAL && NF_CONNTRACK
|
|
help
|
|
With this option enabled, the layer 3 independent connection
|
|
tracking code will be able to do state tracking on UDP-Lite
|
|
connections.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NF_CONNTRACK_AMANDA
|
|
tristate "Amanda backup protocol support"
|
|
depends on NF_CONNTRACK
|
|
select TEXTSEARCH
|
|
select TEXTSEARCH_KMP
|
|
help
|
|
If you are running the Amanda backup package <http://www.amanda.org/>
|
|
on this machine or machines that will be MASQUERADED through this
|
|
machine, then you may want to enable this feature. This allows the
|
|
connection tracking and natting code to allow the sub-channels that
|
|
Amanda requires for communication of the backup data, messages and
|
|
index.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NF_CONNTRACK_FTP
|
|
tristate "FTP protocol support"
|
|
depends on NF_CONNTRACK
|
|
help
|
|
Tracking FTP connections is problematic: special helpers are
|
|
required for tracking them, and doing masquerading and other forms
|
|
of Network Address Translation on them.
|
|
|
|
This is FTP 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_H323
|
|
tristate "H.323 protocol support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL && NF_CONNTRACK && (IPV6 || IPV6=n)
|
|
help
|
|
H.323 is a VoIP signalling protocol from ITU-T. As one of the most
|
|
important VoIP protocols, it is widely used by voice hardware and
|
|
software including voice gateways, IP phones, Netmeeting, OpenPhone,
|
|
Gnomemeeting, etc.
|
|
|
|
With this module you can support H.323 on a connection tracking/NAT
|
|
firewall.
|
|
|
|
This module supports RAS, Fast Start, H.245 Tunnelling, Call
|
|
Forwarding, RTP/RTCP and T.120 based audio, video, fax, chat,
|
|
whiteboard, file transfer, etc. For more information, please
|
|
visit http://nath323.sourceforge.net/.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NF_CONNTRACK_IRC
|
|
tristate "IRC protocol support"
|
|
depends on NF_CONNTRACK
|
|
help
|
|
There is a commonly-used extension to IRC called
|
|
Direct Client-to-Client Protocol (DCC). This enables users to send
|
|
files to each other, and also chat to each other without the need
|
|
of a server. DCC Sending is used anywhere you send files over IRC,
|
|
and DCC Chat is most commonly used by Eggdrop bots. If you are
|
|
using NAT, this extension will enable you to send files and initiate
|
|
chats. Note that you do NOT need this extension to get files or
|
|
have others initiate chats, or everything else in IRC.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NF_CONNTRACK_NETBIOS_NS
|
|
tristate "NetBIOS name service protocol support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL && NF_CONNTRACK
|
|
help
|
|
NetBIOS name service requests are sent as broadcast messages from an
|
|
unprivileged port and responded to with unicast messages to the
|
|
same port. This make them hard to firewall properly because connection
|
|
tracking doesn't deal with broadcasts. This helper tracks locally
|
|
originating NetBIOS name service requests and the corresponding
|
|
responses. It relies on correct IP address configuration, specifically
|
|
netmask and broadcast address. When properly configured, the output
|
|
of "ip address show" should look similar to this:
|
|
|
|
$ ip -4 address show eth0
|
|
4: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
|
|
inet 172.16.2.252/24 brd 172.16.2.255 scope global eth0
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NF_CONNTRACK_PPTP
|
|
tristate "PPtP protocol support"
|
|
depends on NF_CONNTRACK
|
|
select NF_CT_PROTO_GRE
|
|
help
|
|
This module adds support for PPTP (Point to Point Tunnelling
|
|
Protocol, RFC2637) connection tracking and NAT.
|
|
|
|
If you are running PPTP sessions over a stateful firewall or NAT
|
|
box, you may want to enable this feature.
|
|
|
|
Please note that not all PPTP modes of operation are supported yet.
|
|
Specifically these limitations exist:
|
|
- Blindly assumes that control connections are always established
|
|
in PNS->PAC direction. This is a violation of RFC2637.
|
|
- Only supports a single call within each session
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NF_CONNTRACK_SANE
|
|
tristate "SANE protocol support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL && NF_CONNTRACK
|
|
help
|
|
SANE is a protocol for remote access to scanners as implemented
|
|
by the 'saned' daemon. Like FTP, it uses separate control and
|
|
data connections.
|
|
|
|
With this module you can support SANE on a connection tracking
|
|
firewall.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NF_CONNTRACK_SIP
|
|
tristate "SIP protocol support (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL && NF_CONNTRACK
|
|
help
|
|
SIP is an application-layer control protocol that can establish,
|
|
modify, and terminate multimedia sessions (conferences) such as
|
|
Internet telephony calls. With the ip_conntrack_sip and
|
|
the nf_nat_sip modules you can support the protocol on a connection
|
|
tracking/NATing firewall.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NF_CONNTRACK_TFTP
|
|
tristate "TFTP protocol support"
|
|
depends on NF_CONNTRACK
|
|
help
|
|
TFTP connection tracking helper, this is required depending
|
|
on how restrictive your ruleset is.
|
|
If you are using a tftp client behind -j SNAT or -j MASQUERADING
|
|
you will need this.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NF_CT_NETLINK
|
|
tristate 'Connection tracking netlink interface (EXPERIMENTAL)'
|
|
depends on EXPERIMENTAL && NF_CONNTRACK && NETFILTER_NETLINK
|
|
depends on NF_CONNTRACK!=y || NETFILTER_NETLINK!=m
|
|
depends on NF_NAT=n || NF_NAT
|
|
help
|
|
This option enables support for a netlink-based userspace interface
|
|
|
|
config NETFILTER_XTABLES
|
|
tristate "Netfilter Xtables support (required for ip_tables)"
|
|
help
|
|
This is required if you intend to use any of ip_tables,
|
|
ip6_tables or arp_tables.
|
|
|
|
# alphabetically ordered list of targets
|
|
|
|
config NETFILTER_XT_TARGET_CLASSIFY
|
|
tristate '"CLASSIFY" target support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This option adds a `CLASSIFY' target, which enables the user to set
|
|
the priority of a packet. Some qdiscs can use this value for
|
|
classification, among these are:
|
|
|
|
atm, cbq, dsmark, pfifo_fast, htb, prio
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_TARGET_CONNMARK
|
|
tristate '"CONNMARK" target support'
|
|
depends on NETFILTER_XTABLES
|
|
depends on IP_NF_MANGLE || IP6_NF_MANGLE
|
|
depends on NF_CONNTRACK
|
|
select NF_CONNTRACK_MARK
|
|
help
|
|
This option adds a `CONNMARK' target, which allows one to manipulate
|
|
the connection mark value. Similar to the MARK target, but
|
|
affects the connection mark value rather than the packet mark value.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. The module will be called
|
|
ipt_CONNMARK.ko. If unsure, say `N'.
|
|
|
|
config NETFILTER_XT_TARGET_DSCP
|
|
tristate '"DSCP" target support'
|
|
depends on NETFILTER_XTABLES
|
|
depends on IP_NF_MANGLE || IP6_NF_MANGLE
|
|
help
|
|
This option adds a `DSCP' target, which allows you to manipulate
|
|
the IPv4/IPv6 header DSCP field (differentiated services codepoint).
|
|
|
|
The DSCP field can have any value between 0x0 and 0x3f inclusive.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_TARGET_MARK
|
|
tristate '"MARK" target support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This option adds a `MARK' target, which allows you to create rules
|
|
in the `mangle' table which alter the netfilter mark (nfmark) field
|
|
associated with the packet prior to routing. This can change
|
|
the routing method (see `Use netfilter MARK value as routing
|
|
key') and can also be used by other subsystems to change their
|
|
behavior.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_TARGET_NFQUEUE
|
|
tristate '"NFQUEUE" target Support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This target replaced the old obsolete QUEUE target.
|
|
|
|
As opposed to QUEUE, it supports 65535 different queues,
|
|
not just one.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_TARGET_NFLOG
|
|
tristate '"NFLOG" target support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This option enables the NFLOG target, which allows to LOG
|
|
messages through the netfilter logging API, which can use
|
|
either the old LOG target, the old ULOG target or nfnetlink_log
|
|
as backend.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_TARGET_NOTRACK
|
|
tristate '"NOTRACK" target support'
|
|
depends on NETFILTER_XTABLES
|
|
depends on IP_NF_RAW || IP6_NF_RAW
|
|
depends on NF_CONNTRACK
|
|
help
|
|
The NOTRACK target allows a select rule to specify
|
|
which packets *not* to enter the conntrack/NAT
|
|
subsystem with all the consequences (no ICMP error tracking,
|
|
no protocol helpers for the selected packets).
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
|
|
|
|
config NETFILTER_XT_TARGET_TRACE
|
|
tristate '"TRACE" target support'
|
|
depends on NETFILTER_XTABLES
|
|
depends on IP_NF_RAW || IP6_NF_RAW
|
|
help
|
|
The TRACE target allows you to mark packets so that the kernel
|
|
will log every rule which match the packets as those traverse
|
|
the tables, chains, rules.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
|
|
|
|
config NETFILTER_XT_TARGET_SECMARK
|
|
tristate '"SECMARK" target support'
|
|
depends on NETFILTER_XTABLES && NETWORK_SECMARK
|
|
help
|
|
The SECMARK target allows security marking of network
|
|
packets, for use with security subsystems.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_TARGET_CONNSECMARK
|
|
tristate '"CONNSECMARK" target support'
|
|
depends on NETFILTER_XTABLES && NF_CONNTRACK && NF_CONNTRACK_SECMARK
|
|
help
|
|
The CONNSECMARK target copies security markings from packets
|
|
to connections, and restores security markings from connections
|
|
to packets (if the packets are not already marked). This would
|
|
normally be used in conjunction with the SECMARK target.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_TARGET_TCPMSS
|
|
tristate '"TCPMSS" target support'
|
|
depends on NETFILTER_XTABLES && (IPV6 || IPV6=n)
|
|
---help---
|
|
This option adds a `TCPMSS' target, which allows you to alter the
|
|
MSS value of TCP SYN packets, to control the maximum size for that
|
|
connection (usually limiting it to your outgoing interface's MTU
|
|
minus 40).
|
|
|
|
This is used to overcome criminally braindead ISPs or servers which
|
|
block ICMP Fragmentation Needed packets. The symptoms of this
|
|
problem are that everything works fine from your Linux
|
|
firewall/router, but machines behind it can never exchange large
|
|
packets:
|
|
1) Web browsers connect, then hang with no data received.
|
|
2) Small mail works fine, but large emails hang.
|
|
3) ssh works fine, but scp hangs after initial handshaking.
|
|
|
|
Workaround: activate this option and add a rule to your firewall
|
|
configuration like:
|
|
|
|
iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN \
|
|
-j TCPMSS --clamp-mss-to-pmtu
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_COMMENT
|
|
tristate '"comment" match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This option adds a `comment' dummy-match, which allows you to put
|
|
comments in your iptables ruleset.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
|
|
|
|
config NETFILTER_XT_MATCH_CONNBYTES
|
|
tristate '"connbytes" per-connection counter match support'
|
|
depends on NETFILTER_XTABLES
|
|
depends on NF_CONNTRACK
|
|
select NF_CT_ACCT
|
|
help
|
|
This option adds a `connbytes' match, which allows you to match the
|
|
number of bytes and/or packets for each direction within a connection.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
|
|
|
|
config NETFILTER_XT_MATCH_CONNLIMIT
|
|
tristate '"connlimit" match support"'
|
|
depends on NETFILTER_XTABLES
|
|
depends on NF_CONNTRACK
|
|
---help---
|
|
This match allows you to match against the number of parallel
|
|
connections to a server per client IP address (or address block).
|
|
|
|
config NETFILTER_XT_MATCH_CONNMARK
|
|
tristate '"connmark" connection mark match support'
|
|
depends on NETFILTER_XTABLES
|
|
depends on NF_CONNTRACK
|
|
select NF_CONNTRACK_MARK
|
|
help
|
|
This option adds a `connmark' match, which allows you to match the
|
|
connection mark value previously set for the session by `CONNMARK'.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. The module will be called
|
|
ipt_connmark.ko. If unsure, say `N'.
|
|
|
|
config NETFILTER_XT_MATCH_CONNTRACK
|
|
tristate '"conntrack" connection tracking match support'
|
|
depends on NETFILTER_XTABLES
|
|
depends on NF_CONNTRACK
|
|
help
|
|
This is a general conntrack match module, a superset of the state match.
|
|
|
|
It allows matching on additional conntrack information, which is
|
|
useful in complex configurations, such as NAT gateways with multiple
|
|
internet links or tunnels.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_DCCP
|
|
tristate '"DCCP" protocol match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
With this option enabled, you will be able to use the iptables
|
|
`dccp' match in order to match on DCCP source/destination ports
|
|
and DCCP flags.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
|
|
|
|
config NETFILTER_XT_MATCH_DSCP
|
|
tristate '"DSCP" match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This option adds a `DSCP' match, which allows you to match against
|
|
the IPv4/IPv6 header DSCP field (differentiated services codepoint).
|
|
|
|
The DSCP field can have any value between 0x0 and 0x3f inclusive.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_ESP
|
|
tristate '"ESP" match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This match extension allows you to match a range of SPIs
|
|
inside ESP header of IPSec packets.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_HELPER
|
|
tristate '"helper" match support'
|
|
depends on NETFILTER_XTABLES
|
|
depends on NF_CONNTRACK
|
|
help
|
|
Helper matching allows you to match packets in dynamic connections
|
|
tracked by a conntrack-helper, ie. ip_conntrack_ftp
|
|
|
|
To compile it as a module, choose M here. If unsure, say Y.
|
|
|
|
config NETFILTER_XT_MATCH_LENGTH
|
|
tristate '"length" match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This option allows you to match the length of a packet against a
|
|
specific value or range of values.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_LIMIT
|
|
tristate '"limit" match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
limit matching allows you to control the rate at which a rule can be
|
|
matched: mainly useful in combination with the LOG target ("LOG
|
|
target support", below) and to avoid some Denial of Service attacks.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_MAC
|
|
tristate '"mac" address match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
MAC matching allows you to match packets based on the source
|
|
Ethernet address of the packet.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_MARK
|
|
tristate '"mark" match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
Netfilter mark matching allows you to match packets based on the
|
|
`nfmark' value in the packet. This can be set by the MARK target
|
|
(see below).
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_POLICY
|
|
tristate 'IPsec "policy" match support'
|
|
depends on NETFILTER_XTABLES && XFRM
|
|
help
|
|
Policy matching allows you to match packets based on the
|
|
IPsec policy that was used during decapsulation/will
|
|
be used during encapsulation.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_MULTIPORT
|
|
tristate "Multiple port match support"
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
Multiport matching allows you to match TCP or UDP packets based on
|
|
a series of source or destination ports: normally a rule can only
|
|
match a single range of ports.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_PHYSDEV
|
|
tristate '"physdev" match support'
|
|
depends on NETFILTER_XTABLES && BRIDGE && BRIDGE_NETFILTER
|
|
help
|
|
Physdev packet matching matches against the physical bridge ports
|
|
the IP packet arrived on or will leave by.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_PKTTYPE
|
|
tristate '"pkttype" packet type match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
Packet type matching allows you to match a packet by
|
|
its "class", eg. BROADCAST, MULTICAST, ...
|
|
|
|
Typical usage:
|
|
iptables -A INPUT -m pkttype --pkt-type broadcast -j LOG
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_QUOTA
|
|
tristate '"quota" match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This option adds a `quota' match, which allows to match on a
|
|
byte counter.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
|
|
|
|
config NETFILTER_XT_MATCH_REALM
|
|
tristate '"realm" match support'
|
|
depends on NETFILTER_XTABLES
|
|
select NET_CLS_ROUTE
|
|
help
|
|
This option adds a `realm' match, which allows you to use the realm
|
|
key from the routing subsystem inside iptables.
|
|
|
|
This match pretty much resembles the CONFIG_NET_CLS_ROUTE4 option
|
|
in tc world.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
|
|
|
|
config NETFILTER_XT_MATCH_SCTP
|
|
tristate '"sctp" protocol match support (EXPERIMENTAL)'
|
|
depends on NETFILTER_XTABLES && EXPERIMENTAL
|
|
help
|
|
With this option enabled, you will be able to use the
|
|
`sctp' match in order to match on SCTP source/destination ports
|
|
and SCTP chunk types.
|
|
|
|
If you want to compile it as a module, say M here and read
|
|
<file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
|
|
|
|
config NETFILTER_XT_MATCH_STATE
|
|
tristate '"state" match support'
|
|
depends on NETFILTER_XTABLES
|
|
depends on NF_CONNTRACK
|
|
help
|
|
Connection state matching allows you to match packets based on their
|
|
relationship to a tracked connection (ie. previous packets). This
|
|
is a powerful tool for packet classification.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_STATISTIC
|
|
tristate '"statistic" match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This option adds a `statistic' match, which allows you to match
|
|
on packets periodically or randomly with a given percentage.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_STRING
|
|
tristate '"string" match support'
|
|
depends on NETFILTER_XTABLES
|
|
select TEXTSEARCH
|
|
select TEXTSEARCH_KMP
|
|
select TEXTSEARCH_BM
|
|
select TEXTSEARCH_FSM
|
|
help
|
|
This option adds a `string' match, which allows you to look for
|
|
pattern matchings in packets.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_TCPMSS
|
|
tristate '"tcpmss" match support'
|
|
depends on NETFILTER_XTABLES
|
|
help
|
|
This option adds a `tcpmss' match, which allows you to examine the
|
|
MSS value of TCP SYN packets, which control the maximum packet size
|
|
for that connection.
|
|
|
|
To compile it as a module, choose M here. If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_TIME
|
|
tristate '"time" match support'
|
|
depends on NETFILTER_XTABLES
|
|
---help---
|
|
This option adds a "time" match, which allows you to match based on
|
|
the packet arrival time (at the machine which netfilter is running)
|
|
on) or departure time/date (for locally generated packets).
|
|
|
|
If you say Y here, try `iptables -m time --help` for
|
|
more information.
|
|
|
|
If you want to compile it as a module, say M here.
|
|
If unsure, say N.
|
|
|
|
config NETFILTER_XT_MATCH_U32
|
|
tristate '"u32" match support'
|
|
depends on NETFILTER_XTABLES
|
|
---help---
|
|
u32 allows you to extract quantities of up to 4 bytes from a packet,
|
|
AND them with specified masks, shift them by specified amounts and
|
|
test whether the results are in any of a set of specified ranges.
|
|
The specification of what to extract is general enough to skip over
|
|
headers with lengths stored in the packet, as in IP or TCP header
|
|
lengths.
|
|
|
|
Details and examples are in the kernel module source.
|
|
|
|
config NETFILTER_XT_MATCH_HASHLIMIT
|
|
tristate '"hashlimit" match support'
|
|
depends on NETFILTER_XTABLES && (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n)
|
|
help
|
|
This option adds a `hashlimit' match.
|
|
|
|
As opposed to `limit', this match dynamically creates a hash table
|
|
of limit buckets, based on your selection of source/destination
|
|
addresses and/or ports.
|
|
|
|
It enables you to express policies like `10kpps for any given
|
|
destination address' or `500pps from any given source address'
|
|
with a single rule.
|
|
|
|
endmenu
|
|
|