Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 1 | menu "Core Netfilter Configuration" |
Patrick McHardy | 3a41135 | 2006-12-12 00:27:46 -0800 | [diff] [blame] | 2 | depends on NET && INET && NETFILTER |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 3 | |
Harald Welte | f9e815b | 2005-08-09 19:30:24 -0700 | [diff] [blame] | 4 | config NETFILTER_NETLINK |
Patrick McHardy | 2eeeba3 | 2007-12-05 01:31:52 -0800 | [diff] [blame] | 5 | tristate |
Harald Welte | 7af4cc3 | 2005-08-09 19:44:15 -0700 | [diff] [blame] | 6 | |
Pablo Neira Ayuso | 9413902 | 2011-12-23 14:19:50 +0100 | [diff] [blame] | 7 | config NETFILTER_NETLINK_ACCT |
| 8 | tristate "Netfilter NFACCT over NFNETLINK interface" |
| 9 | depends on NETFILTER_ADVANCED |
| 10 | select NETFILTER_NETLINK |
| 11 | help |
| 12 | If this option is enabled, the kernel will include support |
| 13 | for extended accounting via NFNETLINK. |
| 14 | |
Harald Welte | 7af4cc3 | 2005-08-09 19:44:15 -0700 | [diff] [blame] | 15 | config NETFILTER_NETLINK_QUEUE |
| 16 | tristate "Netfilter NFQUEUE over NFNETLINK interface" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 17 | depends on NETFILTER_ADVANCED |
Patrick McHardy | 2eeeba3 | 2007-12-05 01:31:52 -0800 | [diff] [blame] | 18 | select NETFILTER_NETLINK |
Harald Welte | 7af4cc3 | 2005-08-09 19:44:15 -0700 | [diff] [blame] | 19 | help |
Thomas Vögtle | 50b521a | 2006-03-22 13:53:48 -0800 | [diff] [blame] | 20 | If this option is enabled, the kernel will include support |
Harald Welte | 7af4cc3 | 2005-08-09 19:44:15 -0700 | [diff] [blame] | 21 | for queueing packets via NFNETLINK. |
| 22 | |
Harald Welte | 0597f26 | 2005-08-09 19:58:39 -0700 | [diff] [blame] | 23 | config NETFILTER_NETLINK_LOG |
| 24 | tristate "Netfilter LOG over NFNETLINK interface" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 25 | default m if NETFILTER_ADVANCED=n |
Patrick McHardy | 2eeeba3 | 2007-12-05 01:31:52 -0800 | [diff] [blame] | 26 | select NETFILTER_NETLINK |
Harald Welte | 0597f26 | 2005-08-09 19:58:39 -0700 | [diff] [blame] | 27 | help |
| 28 | If this option is enabled, the kernel will include support |
| 29 | for logging packets via NFNETLINK. |
| 30 | |
| 31 | This obsoletes the existing ipt_ULOG and ebg_ulog mechanisms, |
| 32 | and is also scheduled to replace the old syslog-based ipt_LOG |
| 33 | and ip6t_LOG modules. |
| 34 | |
Patrick McHardy | ab4f58c | 2007-12-05 01:31:37 -0800 | [diff] [blame] | 35 | config NF_CONNTRACK |
Patrick McHardy | b321e14 | 2006-12-02 22:05:46 -0800 | [diff] [blame] | 36 | tristate "Netfilter connection tracking support" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 37 | default m if NETFILTER_ADVANCED=n |
Patrick McHardy | b321e14 | 2006-12-02 22:05:46 -0800 | [diff] [blame] | 38 | help |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 39 | Connection tracking keeps a record of what packets have passed |
| 40 | through your machine, in order to figure out how they are related |
| 41 | into connections. |
| 42 | |
Patrick McHardy | b321e14 | 2006-12-02 22:05:46 -0800 | [diff] [blame] | 43 | This is required to do Masquerading or other kinds of Network |
Russ Dill | b11c16b | 2008-07-08 02:35:27 -0700 | [diff] [blame] | 44 | Address Translation. It can also be used to enhance packet |
| 45 | filtering (see `Connection state match support' below). |
Patrick McHardy | b321e14 | 2006-12-02 22:05:46 -0800 | [diff] [blame] | 46 | |
| 47 | To compile it as a module, choose M here. If unsure, say N. |
| 48 | |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 49 | if NF_CONNTRACK |
| 50 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 51 | config NF_CONNTRACK_MARK |
| 52 | bool 'Connection mark tracking support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 53 | depends on NETFILTER_ADVANCED |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 54 | help |
| 55 | This option enables support for connection marks, used by the |
| 56 | `CONNMARK' target and `connmark' match. Similar to the mark value |
| 57 | of packets, but this mark value is kept in the conntrack session |
| 58 | instead of the individual packets. |
| 59 | |
James Morris | 7c9728c | 2006-06-09 00:31:46 -0700 | [diff] [blame] | 60 | config NF_CONNTRACK_SECMARK |
| 61 | bool 'Connection tracking security mark support' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 62 | depends on NETWORK_SECMARK |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 63 | default m if NETFILTER_ADVANCED=n |
James Morris | 7c9728c | 2006-06-09 00:31:46 -0700 | [diff] [blame] | 64 | help |
| 65 | This option enables security markings to be applied to |
| 66 | connections. Typically they are copied to connections from |
| 67 | packets using the CONNSECMARK target and copied back from |
| 68 | connections to packets with the same target, with the packets |
| 69 | being originally labeled via SECMARK. |
| 70 | |
| 71 | If unsure, say 'N'. |
| 72 | |
Patrick McHardy | 5d0aa2c | 2010-02-15 18:13:33 +0100 | [diff] [blame] | 73 | config NF_CONNTRACK_ZONES |
| 74 | bool 'Connection tracking zones' |
| 75 | depends on NETFILTER_ADVANCED |
| 76 | depends on NETFILTER_XT_TARGET_CT |
| 77 | help |
| 78 | This option enables support for connection tracking zones. |
| 79 | Normally, each connection needs to have a unique system wide |
| 80 | identity. Connection tracking zones allow to have multiple |
| 81 | connections using the same identity, as long as they are |
| 82 | contained in different zones. |
| 83 | |
| 84 | If unsure, say `N'. |
| 85 | |
Jan Engelhardt | 54b07dc | 2011-04-21 09:32:45 +0200 | [diff] [blame] | 86 | config NF_CONNTRACK_PROCFS |
| 87 | bool "Supply CT list in procfs (OBSOLETE)" |
| 88 | default y |
| 89 | depends on PROC_FS |
| 90 | ---help--- |
| 91 | This option enables for the list of known conntrack entries |
| 92 | to be shown in procfs under net/netfilter/nf_conntrack. This |
| 93 | is considered obsolete in favor of using the conntrack(8) |
| 94 | tool which uses Netlink. |
| 95 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 96 | config NF_CONNTRACK_EVENTS |
Patrick McHardy | 8ce22fc | 2008-01-14 23:31:36 -0800 | [diff] [blame] | 97 | bool "Connection tracking events" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 98 | depends on NETFILTER_ADVANCED |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 99 | help |
| 100 | If this option is enabled, the connection tracking code will |
| 101 | provide a notifier chain that can be used by other kernel code |
Thomas Vögtle | 50b521a | 2006-03-22 13:53:48 -0800 | [diff] [blame] | 102 | to get notified about changes in the connection tracking state. |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 103 | |
| 104 | If unsure, say `N'. |
| 105 | |
Pablo Neira Ayuso | dd70507 | 2012-02-28 23:36:48 +0100 | [diff] [blame^] | 106 | config NF_CONNTRACK_TIMEOUT |
| 107 | bool 'Connection tracking timeout' |
| 108 | depends on NETFILTER_ADVANCED |
| 109 | help |
| 110 | This option enables support for connection tracking timeout |
| 111 | extension. This allows you to attach timeout policies to flow |
| 112 | via the CT target. |
| 113 | |
| 114 | If unsure, say `N'. |
| 115 | |
Pablo Neira Ayuso | a992ca2 | 2011-01-19 16:00:07 +0100 | [diff] [blame] | 116 | config NF_CONNTRACK_TIMESTAMP |
| 117 | bool 'Connection tracking timestamping' |
| 118 | depends on NETFILTER_ADVANCED |
| 119 | help |
| 120 | This option enables support for connection tracking timestamping. |
| 121 | This allows you to store the flow start-time and to obtain |
| 122 | the flow-stop time (once it has been destroyed) via Connection |
| 123 | tracking events. |
| 124 | |
| 125 | If unsure, say `N'. |
| 126 | |
Patrick McHardy | 2bc7804 | 2008-03-20 15:15:55 +0100 | [diff] [blame] | 127 | config NF_CT_PROTO_DCCP |
| 128 | tristate 'DCCP protocol connection tracking support (EXPERIMENTAL)' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 129 | depends on EXPERIMENTAL |
Patrick McHardy | 2bc7804 | 2008-03-20 15:15:55 +0100 | [diff] [blame] | 130 | depends on NETFILTER_ADVANCED |
Patrick McHardy | f3261af | 2008-05-08 01:16:04 -0700 | [diff] [blame] | 131 | default IP_DCCP |
Patrick McHardy | 2bc7804 | 2008-03-20 15:15:55 +0100 | [diff] [blame] | 132 | help |
| 133 | With this option enabled, the layer 3 independent connection |
| 134 | tracking code will be able to do state tracking on DCCP connections. |
| 135 | |
| 136 | If unsure, say 'N'. |
| 137 | |
Patrick McHardy | f09943f | 2006-12-02 22:09:41 -0800 | [diff] [blame] | 138 | config NF_CT_PROTO_GRE |
| 139 | tristate |
Patrick McHardy | f09943f | 2006-12-02 22:09:41 -0800 | [diff] [blame] | 140 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 141 | config NF_CT_PROTO_SCTP |
Patrick McHardy | a3c4797 | 2006-12-02 22:11:01 -0800 | [diff] [blame] | 142 | tristate 'SCTP protocol connection tracking support (EXPERIMENTAL)' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 143 | depends on EXPERIMENTAL |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 144 | depends on NETFILTER_ADVANCED |
Patrick McHardy | f3261af | 2008-05-08 01:16:04 -0700 | [diff] [blame] | 145 | default IP_SCTP |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 146 | help |
| 147 | With this option enabled, the layer 3 independent connection |
| 148 | tracking code will be able to do state tracking on SCTP connections. |
| 149 | |
| 150 | If you want to compile it as a module, say M here and read |
Alexander E. Patrakov | 39f5fb3 | 2007-03-16 18:28:43 +0500 | [diff] [blame] | 151 | <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 152 | |
Patrick McHardy | 59eecdf | 2007-07-14 20:48:44 -0700 | [diff] [blame] | 153 | config NF_CT_PROTO_UDPLITE |
Patrick McHardy | 8ce22fc | 2008-01-14 23:31:36 -0800 | [diff] [blame] | 154 | tristate 'UDP-Lite protocol connection tracking support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 155 | depends on NETFILTER_ADVANCED |
Patrick McHardy | 59eecdf | 2007-07-14 20:48:44 -0700 | [diff] [blame] | 156 | help |
| 157 | With this option enabled, the layer 3 independent connection |
| 158 | tracking code will be able to do state tracking on UDP-Lite |
| 159 | connections. |
| 160 | |
| 161 | To compile it as a module, choose M here. If unsure, say N. |
| 162 | |
Patrick McHardy | 1695890 | 2006-12-02 22:08:26 -0800 | [diff] [blame] | 163 | config NF_CONNTRACK_AMANDA |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 164 | tristate "Amanda backup protocol support" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 165 | depends on NETFILTER_ADVANCED |
Patrick McHardy | 1695890 | 2006-12-02 22:08:26 -0800 | [diff] [blame] | 166 | select TEXTSEARCH |
| 167 | select TEXTSEARCH_KMP |
| 168 | help |
| 169 | If you are running the Amanda backup package <http://www.amanda.org/> |
| 170 | on this machine or machines that will be MASQUERADED through this |
| 171 | machine, then you may want to enable this feature. This allows the |
| 172 | connection tracking and natting code to allow the sub-channels that |
| 173 | Amanda requires for communication of the backup data, messages and |
| 174 | index. |
| 175 | |
| 176 | To compile it as a module, choose M here. If unsure, say N. |
| 177 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 178 | config NF_CONNTRACK_FTP |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 179 | tristate "FTP protocol support" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 180 | default m if NETFILTER_ADVANCED=n |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 181 | help |
| 182 | Tracking FTP connections is problematic: special helpers are |
| 183 | required for tracking them, and doing masquerading and other forms |
| 184 | of Network Address Translation on them. |
| 185 | |
| 186 | This is FTP support on Layer 3 independent connection tracking. |
| 187 | Layer 3 independent connection tracking is experimental scheme |
| 188 | which generalize ip_conntrack to support other layer 3 protocols. |
| 189 | |
| 190 | To compile it as a module, choose M here. If unsure, say N. |
| 191 | |
Patrick McHardy | f587de0 | 2006-12-02 22:08:46 -0800 | [diff] [blame] | 192 | config NF_CONNTRACK_H323 |
Patrick McHardy | 8ce22fc | 2008-01-14 23:31:36 -0800 | [diff] [blame] | 193 | tristate "H.323 protocol support" |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 194 | depends on (IPV6 || IPV6=n) |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 195 | depends on NETFILTER_ADVANCED |
Patrick McHardy | f587de0 | 2006-12-02 22:08:46 -0800 | [diff] [blame] | 196 | help |
| 197 | H.323 is a VoIP signalling protocol from ITU-T. As one of the most |
| 198 | important VoIP protocols, it is widely used by voice hardware and |
| 199 | software including voice gateways, IP phones, Netmeeting, OpenPhone, |
| 200 | Gnomemeeting, etc. |
| 201 | |
| 202 | With this module you can support H.323 on a connection tracking/NAT |
| 203 | firewall. |
| 204 | |
| 205 | This module supports RAS, Fast Start, H.245 Tunnelling, Call |
| 206 | Forwarding, RTP/RTCP and T.120 based audio, video, fax, chat, |
| 207 | whiteboard, file transfer, etc. For more information, please |
| 208 | visit http://nath323.sourceforge.net/. |
| 209 | |
| 210 | To compile it as a module, choose M here. If unsure, say N. |
| 211 | |
Patrick McHardy | 869f37d | 2006-12-02 22:09:06 -0800 | [diff] [blame] | 212 | config NF_CONNTRACK_IRC |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 213 | tristate "IRC protocol support" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 214 | default m if NETFILTER_ADVANCED=n |
Patrick McHardy | 869f37d | 2006-12-02 22:09:06 -0800 | [diff] [blame] | 215 | help |
| 216 | There is a commonly-used extension to IRC called |
| 217 | Direct Client-to-Client Protocol (DCC). This enables users to send |
| 218 | files to each other, and also chat to each other without the need |
| 219 | of a server. DCC Sending is used anywhere you send files over IRC, |
| 220 | and DCC Chat is most commonly used by Eggdrop bots. If you are |
| 221 | using NAT, this extension will enable you to send files and initiate |
| 222 | chats. Note that you do NOT need this extension to get files or |
| 223 | have others initiate chats, or everything else in IRC. |
| 224 | |
| 225 | To compile it as a module, choose M here. If unsure, say N. |
| 226 | |
Jiri Olsa | 93557f5 | 2011-01-18 18:12:24 +0100 | [diff] [blame] | 227 | config NF_CONNTRACK_BROADCAST |
| 228 | tristate |
| 229 | |
Patrick McHardy | 92703ee | 2006-12-02 22:09:24 -0800 | [diff] [blame] | 230 | config NF_CONNTRACK_NETBIOS_NS |
Patrick McHardy | 8ce22fc | 2008-01-14 23:31:36 -0800 | [diff] [blame] | 231 | tristate "NetBIOS name service protocol support" |
Jiri Olsa | 93557f5 | 2011-01-18 18:12:24 +0100 | [diff] [blame] | 232 | select NF_CONNTRACK_BROADCAST |
Patrick McHardy | 92703ee | 2006-12-02 22:09:24 -0800 | [diff] [blame] | 233 | help |
| 234 | NetBIOS name service requests are sent as broadcast messages from an |
| 235 | unprivileged port and responded to with unicast messages to the |
| 236 | same port. This make them hard to firewall properly because connection |
| 237 | tracking doesn't deal with broadcasts. This helper tracks locally |
| 238 | originating NetBIOS name service requests and the corresponding |
| 239 | responses. It relies on correct IP address configuration, specifically |
| 240 | netmask and broadcast address. When properly configured, the output |
| 241 | of "ip address show" should look similar to this: |
| 242 | |
| 243 | $ ip -4 address show eth0 |
| 244 | 4: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 |
| 245 | inet 172.16.2.252/24 brd 172.16.2.255 scope global eth0 |
| 246 | |
| 247 | To compile it as a module, choose M here. If unsure, say N. |
| 248 | |
Jiri Olsa | 93557f5 | 2011-01-18 18:12:24 +0100 | [diff] [blame] | 249 | config NF_CONNTRACK_SNMP |
| 250 | tristate "SNMP service protocol support" |
| 251 | depends on NETFILTER_ADVANCED |
| 252 | select NF_CONNTRACK_BROADCAST |
| 253 | help |
| 254 | SNMP service requests are sent as broadcast messages from an |
| 255 | unprivileged port and responded to with unicast messages to the |
| 256 | same port. This make them hard to firewall properly because connection |
| 257 | tracking doesn't deal with broadcasts. This helper tracks locally |
| 258 | originating SNMP service requests and the corresponding |
| 259 | responses. It relies on correct IP address configuration, specifically |
| 260 | netmask and broadcast address. |
| 261 | |
| 262 | To compile it as a module, choose M here. If unsure, say N. |
| 263 | |
Patrick McHardy | f09943f | 2006-12-02 22:09:41 -0800 | [diff] [blame] | 264 | config NF_CONNTRACK_PPTP |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 265 | tristate "PPtP protocol support" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 266 | depends on NETFILTER_ADVANCED |
Patrick McHardy | f09943f | 2006-12-02 22:09:41 -0800 | [diff] [blame] | 267 | select NF_CT_PROTO_GRE |
| 268 | help |
| 269 | This module adds support for PPTP (Point to Point Tunnelling |
| 270 | Protocol, RFC2637) connection tracking and NAT. |
| 271 | |
| 272 | If you are running PPTP sessions over a stateful firewall or NAT |
| 273 | box, you may want to enable this feature. |
| 274 | |
| 275 | Please note that not all PPTP modes of operation are supported yet. |
| 276 | Specifically these limitations exist: |
David Sterba | 3dde6ad | 2007-05-09 07:12:20 +0200 | [diff] [blame] | 277 | - Blindly assumes that control connections are always established |
Patrick McHardy | f09943f | 2006-12-02 22:09:41 -0800 | [diff] [blame] | 278 | in PNS->PAC direction. This is a violation of RFC2637. |
| 279 | - Only supports a single call within each session |
| 280 | |
| 281 | To compile it as a module, choose M here. If unsure, say N. |
| 282 | |
Michal Schmidt | 6fecd19 | 2007-02-07 15:05:12 -0800 | [diff] [blame] | 283 | config NF_CONNTRACK_SANE |
| 284 | tristate "SANE protocol support (EXPERIMENTAL)" |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 285 | depends on EXPERIMENTAL |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 286 | depends on NETFILTER_ADVANCED |
Michal Schmidt | 6fecd19 | 2007-02-07 15:05:12 -0800 | [diff] [blame] | 287 | help |
| 288 | SANE is a protocol for remote access to scanners as implemented |
| 289 | by the 'saned' daemon. Like FTP, it uses separate control and |
| 290 | data connections. |
| 291 | |
| 292 | With this module you can support SANE on a connection tracking |
| 293 | firewall. |
| 294 | |
| 295 | To compile it as a module, choose M here. If unsure, say N. |
| 296 | |
Patrick McHardy | 9fafcd7 | 2006-12-02 22:09:57 -0800 | [diff] [blame] | 297 | config NF_CONNTRACK_SIP |
Patrick McHardy | 8ce22fc | 2008-01-14 23:31:36 -0800 | [diff] [blame] | 298 | tristate "SIP protocol support" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 299 | default m if NETFILTER_ADVANCED=n |
Patrick McHardy | 9fafcd7 | 2006-12-02 22:09:57 -0800 | [diff] [blame] | 300 | help |
| 301 | SIP is an application-layer control protocol that can establish, |
| 302 | modify, and terminate multimedia sessions (conferences) such as |
| 303 | Internet telephony calls. With the ip_conntrack_sip and |
| 304 | the nf_nat_sip modules you can support the protocol on a connection |
| 305 | tracking/NATing firewall. |
| 306 | |
| 307 | To compile it as a module, choose M here. If unsure, say N. |
| 308 | |
Patrick McHardy | a536df3 | 2006-12-02 22:10:18 -0800 | [diff] [blame] | 309 | config NF_CONNTRACK_TFTP |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 310 | tristate "TFTP protocol support" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 311 | depends on NETFILTER_ADVANCED |
Patrick McHardy | a536df3 | 2006-12-02 22:10:18 -0800 | [diff] [blame] | 312 | help |
| 313 | TFTP connection tracking helper, this is required depending |
| 314 | on how restrictive your ruleset is. |
| 315 | If you are using a tftp client behind -j SNAT or -j MASQUERADING |
| 316 | you will need this. |
| 317 | |
| 318 | To compile it as a module, choose M here. If unsure, say N. |
| 319 | |
Pablo Neira Ayuso | c1d10ad | 2006-01-05 12:19:05 -0800 | [diff] [blame] | 320 | config NF_CT_NETLINK |
Patrick McHardy | 8ce22fc | 2008-01-14 23:31:36 -0800 | [diff] [blame] | 321 | tristate 'Connection tracking netlink interface' |
Patrick McHardy | 2eeeba3 | 2007-12-05 01:31:52 -0800 | [diff] [blame] | 322 | select NETFILTER_NETLINK |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 323 | default m if NETFILTER_ADVANCED=n |
Pablo Neira Ayuso | c1d10ad | 2006-01-05 12:19:05 -0800 | [diff] [blame] | 324 | help |
| 325 | This option enables support for a netlink-based userspace interface |
| 326 | |
Pablo Neira Ayuso | 5097846 | 2012-02-28 19:13:48 +0100 | [diff] [blame] | 327 | config NF_CT_NETLINK_TIMEOUT |
| 328 | tristate 'Connection tracking timeout tuning via Netlink' |
| 329 | select NETFILTER_NETLINK |
| 330 | depends on NETFILTER_ADVANCED |
| 331 | help |
| 332 | This option enables support for connection tracking timeout |
| 333 | fine-grain tuning. This allows you to attach specific timeout |
| 334 | policies to flows, instead of using the global timeout policy. |
| 335 | |
| 336 | If unsure, say `N'. |
| 337 | |
Laszlo Attila Toth | 4b07066 | 2009-04-24 16:55:25 +0200 | [diff] [blame] | 338 | endif # NF_CONNTRACK |
| 339 | |
KOVACS Krisztian | 9ad2d74 | 2008-10-08 11:35:12 +0200 | [diff] [blame] | 340 | # transparent proxy support |
| 341 | config NETFILTER_TPROXY |
| 342 | tristate "Transparent proxying support (EXPERIMENTAL)" |
| 343 | depends on EXPERIMENTAL |
| 344 | depends on IP_NF_MANGLE |
| 345 | depends on NETFILTER_ADVANCED |
| 346 | help |
| 347 | This option enables transparent proxying support, that is, |
| 348 | support for handling non-locally bound IPv4 TCP and UDP sockets. |
| 349 | For it to work you will have to configure certain iptables rules |
| 350 | and use policy routing. For more information on how to set it up |
| 351 | see Documentation/networking/tproxy.txt. |
| 352 | |
| 353 | To compile it as a module, choose M here. If unsure, say N. |
| 354 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 355 | config NETFILTER_XTABLES |
| 356 | tristate "Netfilter Xtables support (required for ip_tables)" |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 357 | default m if NETFILTER_ADVANCED=n |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 358 | help |
| 359 | This is required if you intend to use any of ip_tables, |
| 360 | ip6_tables or arp_tables. |
| 361 | |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 362 | if NETFILTER_XTABLES |
| 363 | |
Jan Engelhardt | 28b9498 | 2009-02-28 03:23:57 +0100 | [diff] [blame] | 364 | comment "Xtables combined modules" |
| 365 | |
| 366 | config NETFILTER_XT_MARK |
| 367 | tristate 'nfmark target and match support' |
| 368 | default m if NETFILTER_ADVANCED=n |
| 369 | ---help--- |
| 370 | This option adds the "MARK" target and "mark" match. |
| 371 | |
| 372 | Netfilter mark matching allows you to match packets based on the |
| 373 | "nfmark" value in the packet. |
| 374 | The target allows you to create rules in the "mangle" table which alter |
| 375 | the netfilter mark (nfmark) field associated with the packet. |
| 376 | |
| 377 | Prior to routing, the nfmark can influence the routing method (see |
| 378 | "Use netfilter MARK value as routing key") and can also be used by |
| 379 | other subsystems to change their behavior. |
| 380 | |
Jan Engelhardt | b8f00ba | 2010-02-26 14:20:32 +0100 | [diff] [blame] | 381 | config NETFILTER_XT_CONNMARK |
| 382 | tristate 'ctmark target and match support' |
| 383 | depends on NF_CONNTRACK |
| 384 | depends on NETFILTER_ADVANCED |
| 385 | select NF_CONNTRACK_MARK |
| 386 | ---help--- |
| 387 | This option adds the "CONNMARK" target and "connmark" match. |
| 388 | |
| 389 | Netfilter allows you to store a mark value per connection (a.k.a. |
| 390 | ctmark), similarly to the packet mark (nfmark). Using this |
| 391 | target and match, you can set and match on this mark. |
| 392 | |
Jozsef Kadlecsik | d956798 | 2011-02-01 15:56:00 +0100 | [diff] [blame] | 393 | config NETFILTER_XT_SET |
| 394 | tristate 'set target and match support' |
| 395 | depends on IP_SET |
| 396 | depends on NETFILTER_ADVANCED |
| 397 | help |
| 398 | This option adds the "SET" target and "set" match. |
| 399 | |
| 400 | Using this target and match, you can add/delete and match |
| 401 | elements in the sets created by ipset(8). |
| 402 | |
| 403 | To compile it as a module, choose M here. If unsure, say N. |
| 404 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 405 | # alphabetically ordered list of targets |
| 406 | |
Jan Engelhardt | 44c5873 | 2010-02-26 14:14:22 +0100 | [diff] [blame] | 407 | comment "Xtables targets" |
| 408 | |
Thomas Graf | 43f393c | 2011-01-16 18:10:28 +0100 | [diff] [blame] | 409 | config NETFILTER_XT_TARGET_AUDIT |
| 410 | tristate "AUDIT target support" |
| 411 | depends on AUDIT |
| 412 | depends on NETFILTER_ADVANCED |
| 413 | ---help--- |
| 414 | This option adds a 'AUDIT' target, which can be used to create |
| 415 | audit records for packets dropped/accepted. |
| 416 | |
| 417 | To compileit as a module, choose M here. If unsure, say N. |
| 418 | |
Michael S. Tsirkin | edf0e1f | 2010-07-15 17:20:46 +0200 | [diff] [blame] | 419 | config NETFILTER_XT_TARGET_CHECKSUM |
| 420 | tristate "CHECKSUM target support" |
| 421 | depends on IP_NF_MANGLE || IP6_NF_MANGLE |
| 422 | depends on NETFILTER_ADVANCED |
| 423 | ---help--- |
| 424 | This option adds a `CHECKSUM' target, which can be used in the iptables mangle |
| 425 | table. |
| 426 | |
| 427 | You can use this target to compute and fill in the checksum in |
| 428 | a packet that lacks a checksum. This is particularly useful, |
| 429 | if you need to work around old applications such as dhcp clients, |
| 430 | that do not work well with checksum offloads, but don't want to disable |
| 431 | checksum offload in your device. |
| 432 | |
| 433 | To compile it as a module, choose M here. If unsure, say N. |
| 434 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 435 | config NETFILTER_XT_TARGET_CLASSIFY |
| 436 | tristate '"CLASSIFY" target support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 437 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 438 | help |
| 439 | This option adds a `CLASSIFY' target, which enables the user to set |
| 440 | the priority of a packet. Some qdiscs can use this value for |
| 441 | classification, among these are: |
| 442 | |
| 443 | atm, cbq, dsmark, pfifo_fast, htb, prio |
| 444 | |
| 445 | To compile it as a module, choose M here. If unsure, say N. |
| 446 | |
| 447 | config NETFILTER_XT_TARGET_CONNMARK |
| 448 | tristate '"CONNMARK" target support' |
Patrick McHardy | 587aa64 | 2007-03-14 16:37:25 -0700 | [diff] [blame] | 449 | depends on NF_CONNTRACK |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 450 | depends on NETFILTER_ADVANCED |
Jan Engelhardt | b8f00ba | 2010-02-26 14:20:32 +0100 | [diff] [blame] | 451 | select NETFILTER_XT_CONNMARK |
| 452 | ---help--- |
| 453 | This is a backwards-compat option for the user's convenience |
| 454 | (e.g. when running oldconfig). It selects |
| 455 | CONFIG_NETFILTER_XT_CONNMARK (combined connmark/CONNMARK module). |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 456 | |
Jan Engelhardt | aba0d34 | 2008-10-08 11:35:17 +0200 | [diff] [blame] | 457 | config NETFILTER_XT_TARGET_CONNSECMARK |
| 458 | tristate '"CONNSECMARK" target support' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 459 | depends on NF_CONNTRACK && NF_CONNTRACK_SECMARK |
Jan Engelhardt | aba0d34 | 2008-10-08 11:35:17 +0200 | [diff] [blame] | 460 | default m if NETFILTER_ADVANCED=n |
| 461 | help |
| 462 | The CONNSECMARK target copies security markings from packets |
| 463 | to connections, and restores security markings from connections |
| 464 | to packets (if the packets are not already marked). This would |
| 465 | normally be used in conjunction with the SECMARK target. |
| 466 | |
| 467 | To compile it as a module, choose M here. If unsure, say N. |
| 468 | |
Patrick McHardy | 84f3bb9 | 2010-02-03 17:17:06 +0100 | [diff] [blame] | 469 | config NETFILTER_XT_TARGET_CT |
| 470 | tristate '"CT" target support' |
| 471 | depends on NF_CONNTRACK |
| 472 | depends on IP_NF_RAW || IP6_NF_RAW |
| 473 | depends on NETFILTER_ADVANCED |
| 474 | help |
| 475 | This options adds a `CT' target, which allows to specify initial |
| 476 | connection tracking parameters like events to be delivered and |
| 477 | the helper to be used. |
| 478 | |
| 479 | To compile it as a module, choose M here. If unsure, say N. |
| 480 | |
Yasuyuki Kozakai | a468701 | 2006-08-22 00:30:26 -0700 | [diff] [blame] | 481 | config NETFILTER_XT_TARGET_DSCP |
Jan Engelhardt | c9fd496 | 2007-12-04 23:38:13 -0800 | [diff] [blame] | 482 | tristate '"DSCP" and "TOS" target support' |
Yasuyuki Kozakai | a468701 | 2006-08-22 00:30:26 -0700 | [diff] [blame] | 483 | depends on IP_NF_MANGLE || IP6_NF_MANGLE |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 484 | depends on NETFILTER_ADVANCED |
Yasuyuki Kozakai | a468701 | 2006-08-22 00:30:26 -0700 | [diff] [blame] | 485 | help |
| 486 | This option adds a `DSCP' target, which allows you to manipulate |
| 487 | the IPv4/IPv6 header DSCP field (differentiated services codepoint). |
| 488 | |
| 489 | The DSCP field can have any value between 0x0 and 0x3f inclusive. |
| 490 | |
Jan Engelhardt | c9fd496 | 2007-12-04 23:38:13 -0800 | [diff] [blame] | 491 | It also adds the "TOS" target, which allows you to create rules in |
| 492 | the "mangle" table which alter the Type Of Service field of an IPv4 |
Jan Engelhardt | 5c350e5 | 2007-12-04 23:39:09 -0800 | [diff] [blame] | 493 | or the Priority field of an IPv6 packet, prior to routing. |
Jan Engelhardt | c9fd496 | 2007-12-04 23:38:13 -0800 | [diff] [blame] | 494 | |
Yasuyuki Kozakai | a468701 | 2006-08-22 00:30:26 -0700 | [diff] [blame] | 495 | To compile it as a module, choose M here. If unsure, say N. |
| 496 | |
Jan Engelhardt | 563d36e | 2009-02-18 18:38:40 +0100 | [diff] [blame] | 497 | config NETFILTER_XT_TARGET_HL |
| 498 | tristate '"HL" hoplimit target support' |
| 499 | depends on IP_NF_MANGLE || IP6_NF_MANGLE |
| 500 | depends on NETFILTER_ADVANCED |
| 501 | ---help--- |
| 502 | This option adds the "HL" (for IPv6) and "TTL" (for IPv4) |
| 503 | targets, which enable the user to change the |
| 504 | hoplimit/time-to-live value of the IP header. |
| 505 | |
| 506 | While it is safe to decrement the hoplimit/TTL value, the |
| 507 | modules also allow to increment and set the hoplimit value of |
| 508 | the header to arbitrary values. This is EXTREMELY DANGEROUS |
| 509 | since you can easily create immortal packets that loop |
| 510 | forever on the network. |
| 511 | |
Luciano Coelho | 0902b46 | 2010-06-15 15:04:00 +0200 | [diff] [blame] | 512 | config NETFILTER_XT_TARGET_IDLETIMER |
| 513 | tristate "IDLETIMER target support" |
| 514 | depends on NETFILTER_ADVANCED |
| 515 | help |
| 516 | |
| 517 | This option adds the `IDLETIMER' target. Each matching packet |
| 518 | resets the timer associated with label specified when the rule is |
| 519 | added. When the timer expires, it triggers a sysfs notification. |
| 520 | The remaining time for expiration can be read via sysfs. |
| 521 | |
| 522 | To compile it as a module, choose M here. If unsure, say N. |
| 523 | |
Adam Nielsen | 268cb38 | 2009-02-20 10:55:14 +0100 | [diff] [blame] | 524 | config NETFILTER_XT_TARGET_LED |
| 525 | tristate '"LED" target support' |
Alex Riesen | 3ae16f1 | 2009-04-06 17:09:43 +0200 | [diff] [blame] | 526 | depends on LEDS_CLASS && LEDS_TRIGGERS |
Adam Nielsen | 268cb38 | 2009-02-20 10:55:14 +0100 | [diff] [blame] | 527 | depends on NETFILTER_ADVANCED |
| 528 | help |
| 529 | This option adds a `LED' target, which allows you to blink LEDs in |
| 530 | response to particular packets passing through your machine. |
| 531 | |
| 532 | This can be used to turn a spare LED into a network activity LED, |
| 533 | which only flashes in response to FTP transfers, for example. Or |
| 534 | you could have an LED which lights up for a minute or two every time |
| 535 | somebody connects to your machine via SSH. |
| 536 | |
| 537 | You will need support for the "led" class to make this work. |
| 538 | |
| 539 | To create an LED trigger for incoming SSH traffic: |
| 540 | iptables -A INPUT -p tcp --dport 22 -j LED --led-trigger-id ssh --led-delay 1000 |
| 541 | |
| 542 | Then attach the new trigger to an LED on your system: |
| 543 | echo netfilter-ssh > /sys/class/leds/<ledname>/trigger |
| 544 | |
| 545 | For more information on the LEDs available on your system, see |
Paul Bolle | 395cf96 | 2011-08-15 02:02:26 +0200 | [diff] [blame] | 546 | Documentation/leds/leds-class.txt |
Adam Nielsen | 268cb38 | 2009-02-20 10:55:14 +0100 | [diff] [blame] | 547 | |
Richard Weinberger | 6939c33 | 2012-02-10 23:10:52 +0100 | [diff] [blame] | 548 | config NETFILTER_XT_TARGET_LOG |
| 549 | tristate "LOG target support" |
| 550 | default m if NETFILTER_ADVANCED=n |
| 551 | help |
| 552 | This option adds a `LOG' target, which allows you to create rules in |
| 553 | any iptables table which records the packet header to the syslog. |
| 554 | |
| 555 | To compile it as a module, choose M here. If unsure, say N. |
| 556 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 557 | config NETFILTER_XT_TARGET_MARK |
| 558 | tristate '"MARK" target support' |
Jan Engelhardt | 28b9498 | 2009-02-28 03:23:57 +0100 | [diff] [blame] | 559 | depends on NETFILTER_ADVANCED |
| 560 | select NETFILTER_XT_MARK |
| 561 | ---help--- |
| 562 | This is a backwards-compat option for the user's convenience |
| 563 | (e.g. when running oldconfig). It selects |
| 564 | CONFIG_NETFILTER_XT_MARK (combined mark/MARK module). |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 565 | |
Patrick McHardy | baf7b1e | 2006-11-29 02:35:38 +0100 | [diff] [blame] | 566 | config NETFILTER_XT_TARGET_NFLOG |
| 567 | tristate '"NFLOG" target support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 568 | default m if NETFILTER_ADVANCED=n |
Eric Leblond | 293a4f2 | 2008-12-10 17:24:33 -0800 | [diff] [blame] | 569 | select NETFILTER_NETLINK_LOG |
Patrick McHardy | baf7b1e | 2006-11-29 02:35:38 +0100 | [diff] [blame] | 570 | help |
| 571 | This option enables the NFLOG target, which allows to LOG |
Eric Leblond | 293a4f2 | 2008-12-10 17:24:33 -0800 | [diff] [blame] | 572 | messages through nfnetlink_log. |
Patrick McHardy | baf7b1e | 2006-11-29 02:35:38 +0100 | [diff] [blame] | 573 | |
| 574 | To compile it as a module, choose M here. If unsure, say N. |
| 575 | |
Jan Engelhardt | aba0d34 | 2008-10-08 11:35:17 +0200 | [diff] [blame] | 576 | config NETFILTER_XT_TARGET_NFQUEUE |
| 577 | tristate '"NFQUEUE" target Support' |
Jan Engelhardt | aba0d34 | 2008-10-08 11:35:17 +0200 | [diff] [blame] | 578 | depends on NETFILTER_ADVANCED |
Florian Westphal | 5f2cafe | 2011-01-18 15:18:08 +0100 | [diff] [blame] | 579 | select NETFILTER_NETLINK_QUEUE |
Jan Engelhardt | aba0d34 | 2008-10-08 11:35:17 +0200 | [diff] [blame] | 580 | help |
| 581 | This target replaced the old obsolete QUEUE target. |
| 582 | |
| 583 | As opposed to QUEUE, it supports 65535 different queues, |
| 584 | not just one. |
| 585 | |
| 586 | To compile it as a module, choose M here. If unsure, say N. |
| 587 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 588 | config NETFILTER_XT_TARGET_NOTRACK |
| 589 | tristate '"NOTRACK" target support' |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 590 | depends on IP_NF_RAW || IP6_NF_RAW |
Patrick McHardy | 587aa64 | 2007-03-14 16:37:25 -0700 | [diff] [blame] | 591 | depends on NF_CONNTRACK |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 592 | help |
| 593 | The NOTRACK target allows a select rule to specify |
| 594 | which packets *not* to enter the conntrack/NAT |
| 595 | subsystem with all the consequences (no ICMP error tracking, |
| 596 | no protocol helpers for the selected packets). |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 597 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 598 | If you want to compile it as a module, say M here and read |
Alexander E. Patrakov | 39f5fb3 | 2007-03-16 18:28:43 +0500 | [diff] [blame] | 599 | <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 600 | |
Patrick McHardy | 5859034 | 2007-12-04 23:40:05 -0800 | [diff] [blame] | 601 | config NETFILTER_XT_TARGET_RATEEST |
| 602 | tristate '"RATEEST" target support' |
Patrick McHardy | b26e76b | 2008-01-14 23:30:56 -0800 | [diff] [blame] | 603 | depends on NETFILTER_ADVANCED |
Patrick McHardy | 5859034 | 2007-12-04 23:40:05 -0800 | [diff] [blame] | 604 | help |
| 605 | This option adds a `RATEEST' target, which allows to measure |
| 606 | rates similar to TC estimators. The `rateest' match can be |
| 607 | used to match on the measured rates. |
| 608 | |
| 609 | To compile it as a module, choose M here. If unsure, say N. |
| 610 | |
Jan Engelhardt | e281b19 | 2010-04-19 14:17:47 +0200 | [diff] [blame] | 611 | config NETFILTER_XT_TARGET_TEE |
Arnd Hannemann | fe6fb55 | 2010-06-22 08:22:21 +0200 | [diff] [blame] | 612 | tristate '"TEE" - packet cloning to alternate destination' |
Jan Engelhardt | e281b19 | 2010-04-19 14:17:47 +0200 | [diff] [blame] | 613 | depends on NETFILTER_ADVANCED |
Jan Engelhardt | 9b7ce2b | 2010-05-12 10:11:35 +0000 | [diff] [blame] | 614 | depends on (IPV6 || IPV6=n) |
Randy Dunlap | 83827f6 | 2010-05-14 13:52:30 -0700 | [diff] [blame] | 615 | depends on !NF_CONNTRACK || NF_CONNTRACK |
Jan Engelhardt | e281b19 | 2010-04-19 14:17:47 +0200 | [diff] [blame] | 616 | ---help--- |
| 617 | This option adds a "TEE" target with which a packet can be cloned and |
| 618 | this clone be rerouted to another nexthop. |
| 619 | |
KOVACS Krisztian | e843927 | 2008-10-08 11:35:12 +0200 | [diff] [blame] | 620 | config NETFILTER_XT_TARGET_TPROXY |
| 621 | tristate '"TPROXY" target support (EXPERIMENTAL)' |
| 622 | depends on EXPERIMENTAL |
| 623 | depends on NETFILTER_TPROXY |
| 624 | depends on NETFILTER_XTABLES |
| 625 | depends on NETFILTER_ADVANCED |
| 626 | select NF_DEFRAG_IPV4 |
KOVACS Krisztian | f6318e5 | 2010-10-24 23:38:32 +0000 | [diff] [blame] | 627 | select NF_DEFRAG_IPV6 if IP6_NF_IPTABLES |
KOVACS Krisztian | e843927 | 2008-10-08 11:35:12 +0200 | [diff] [blame] | 628 | help |
| 629 | This option adds a `TPROXY' target, which is somewhat similar to |
| 630 | REDIRECT. It can only be used in the mangle table and is useful |
| 631 | to redirect traffic to a transparent proxy. It does _not_ depend |
| 632 | on Netfilter connection tracking and NAT, unlike REDIRECT. |
| 633 | |
| 634 | To compile it as a module, choose M here. If unsure, say N. |
| 635 | |
Jozsef Kadlecsik | ba9dda3 | 2007-07-07 22:21:23 -0700 | [diff] [blame] | 636 | config NETFILTER_XT_TARGET_TRACE |
| 637 | tristate '"TRACE" target support' |
Jozsef Kadlecsik | ba9dda3 | 2007-07-07 22:21:23 -0700 | [diff] [blame] | 638 | depends on IP_NF_RAW || IP6_NF_RAW |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 639 | depends on NETFILTER_ADVANCED |
Jozsef Kadlecsik | ba9dda3 | 2007-07-07 22:21:23 -0700 | [diff] [blame] | 640 | help |
| 641 | The TRACE target allows you to mark packets so that the kernel |
| 642 | will log every rule which match the packets as those traverse |
| 643 | the tables, chains, rules. |
| 644 | |
| 645 | If you want to compile it as a module, say M here and read |
Dirk Hohndel | e403149 | 2007-10-30 13:37:19 -0700 | [diff] [blame] | 646 | <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. |
Jozsef Kadlecsik | ba9dda3 | 2007-07-07 22:21:23 -0700 | [diff] [blame] | 647 | |
James Morris | 5e6874cd | 2006-06-09 00:30:57 -0700 | [diff] [blame] | 648 | config NETFILTER_XT_TARGET_SECMARK |
| 649 | tristate '"SECMARK" target support' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 650 | depends on NETWORK_SECMARK |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 651 | default m if NETFILTER_ADVANCED=n |
James Morris | 5e6874cd | 2006-06-09 00:30:57 -0700 | [diff] [blame] | 652 | help |
| 653 | The SECMARK target allows security marking of network |
| 654 | packets, for use with security subsystems. |
| 655 | |
| 656 | To compile it as a module, choose M here. If unsure, say N. |
| 657 | |
Patrick McHardy | cdd289a | 2007-02-07 15:09:46 -0800 | [diff] [blame] | 658 | config NETFILTER_XT_TARGET_TCPMSS |
| 659 | tristate '"TCPMSS" target support' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 660 | depends on (IPV6 || IPV6=n) |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 661 | default m if NETFILTER_ADVANCED=n |
Patrick McHardy | cdd289a | 2007-02-07 15:09:46 -0800 | [diff] [blame] | 662 | ---help--- |
| 663 | This option adds a `TCPMSS' target, which allows you to alter the |
| 664 | MSS value of TCP SYN packets, to control the maximum size for that |
| 665 | connection (usually limiting it to your outgoing interface's MTU |
| 666 | minus 40). |
| 667 | |
| 668 | This is used to overcome criminally braindead ISPs or servers which |
| 669 | block ICMP Fragmentation Needed packets. The symptoms of this |
| 670 | problem are that everything works fine from your Linux |
| 671 | firewall/router, but machines behind it can never exchange large |
| 672 | packets: |
| 673 | 1) Web browsers connect, then hang with no data received. |
| 674 | 2) Small mail works fine, but large emails hang. |
| 675 | 3) ssh works fine, but scp hangs after initial handshaking. |
| 676 | |
| 677 | Workaround: activate this option and add a rule to your firewall |
| 678 | configuration like: |
| 679 | |
| 680 | iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN \ |
| 681 | -j TCPMSS --clamp-mss-to-pmtu |
| 682 | |
| 683 | To compile it as a module, choose M here. If unsure, say N. |
| 684 | |
Sven Schnelle | 338e8a7 | 2007-12-04 23:21:50 -0800 | [diff] [blame] | 685 | config NETFILTER_XT_TARGET_TCPOPTSTRIP |
| 686 | tristate '"TCPOPTSTRIP" target support (EXPERIMENTAL)' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 687 | depends on EXPERIMENTAL |
Sven Schnelle | 338e8a7 | 2007-12-04 23:21:50 -0800 | [diff] [blame] | 688 | depends on IP_NF_MANGLE || IP6_NF_MANGLE |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 689 | depends on NETFILTER_ADVANCED |
Sven Schnelle | 338e8a7 | 2007-12-04 23:21:50 -0800 | [diff] [blame] | 690 | help |
| 691 | This option adds a "TCPOPTSTRIP" target, which allows you to strip |
| 692 | TCP options from TCP packets. |
| 693 | |
Jan Engelhardt | 44c5873 | 2010-02-26 14:14:22 +0100 | [diff] [blame] | 694 | # alphabetically ordered list of matches |
| 695 | |
| 696 | comment "Xtables matches" |
| 697 | |
Florian Westphal | de81bbe | 2011-03-15 20:16:20 +0100 | [diff] [blame] | 698 | config NETFILTER_XT_MATCH_ADDRTYPE |
| 699 | tristate '"addrtype" address type match support' |
| 700 | depends on NETFILTER_ADVANCED |
| 701 | ---help--- |
| 702 | This option allows you to match what routing thinks of an address, |
| 703 | eg. UNICAST, LOCAL, BROADCAST, ... |
| 704 | |
| 705 | If you want to compile it as a module, say M here and read |
| 706 | <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. |
| 707 | |
Pablo Neira Ayuso | 0269ea4 | 2009-03-16 17:10:36 +0100 | [diff] [blame] | 708 | config NETFILTER_XT_MATCH_CLUSTER |
| 709 | tristate '"cluster" match support' |
| 710 | depends on NF_CONNTRACK |
| 711 | depends on NETFILTER_ADVANCED |
| 712 | ---help--- |
| 713 | This option allows you to build work-load-sharing clusters of |
| 714 | network servers/stateful firewalls without having a dedicated |
| 715 | load-balancing router/server/switch. Basically, this match returns |
| 716 | true when the packet must be handled by this cluster node. Thus, |
| 717 | all nodes see all packets and this match decides which node handles |
| 718 | what packets. The work-load sharing algorithm is based on source |
| 719 | address hashing. |
| 720 | |
| 721 | If you say Y or M here, try `iptables -m cluster --help` for |
| 722 | more information. |
| 723 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 724 | config NETFILTER_XT_MATCH_COMMENT |
| 725 | tristate '"comment" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 726 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 727 | help |
| 728 | This option adds a `comment' dummy-match, which allows you to put |
| 729 | comments in your iptables ruleset. |
| 730 | |
| 731 | If you want to compile it as a module, say M here and read |
Alexander E. Patrakov | 39f5fb3 | 2007-03-16 18:28:43 +0500 | [diff] [blame] | 732 | <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 733 | |
| 734 | config NETFILTER_XT_MATCH_CONNBYTES |
| 735 | tristate '"connbytes" per-connection counter match support' |
Patrick McHardy | 587aa64 | 2007-03-14 16:37:25 -0700 | [diff] [blame] | 736 | depends on NF_CONNTRACK |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 737 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 738 | help |
| 739 | This option adds a `connbytes' match, which allows you to match the |
| 740 | number of bytes and/or packets for each direction within a connection. |
| 741 | |
| 742 | If you want to compile it as a module, say M here and read |
Alexander E. Patrakov | 39f5fb3 | 2007-03-16 18:28:43 +0500 | [diff] [blame] | 743 | <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 744 | |
Jan Engelhardt | 370786f | 2007-07-14 20:47:26 -0700 | [diff] [blame] | 745 | config NETFILTER_XT_MATCH_CONNLIMIT |
| 746 | tristate '"connlimit" match support"' |
Cornelia Huck | 3fd8f9e | 2007-07-18 02:38:32 -0700 | [diff] [blame] | 747 | depends on NF_CONNTRACK |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 748 | depends on NETFILTER_ADVANCED |
Jan Engelhardt | 370786f | 2007-07-14 20:47:26 -0700 | [diff] [blame] | 749 | ---help--- |
| 750 | This match allows you to match against the number of parallel |
| 751 | connections to a server per client IP address (or address block). |
| 752 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 753 | config NETFILTER_XT_MATCH_CONNMARK |
| 754 | tristate '"connmark" connection mark match support' |
Patrick McHardy | 587aa64 | 2007-03-14 16:37:25 -0700 | [diff] [blame] | 755 | depends on NF_CONNTRACK |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 756 | depends on NETFILTER_ADVANCED |
Jan Engelhardt | b8f00ba | 2010-02-26 14:20:32 +0100 | [diff] [blame] | 757 | select NETFILTER_XT_CONNMARK |
| 758 | ---help--- |
| 759 | This is a backwards-compat option for the user's convenience |
| 760 | (e.g. when running oldconfig). It selects |
| 761 | CONFIG_NETFILTER_XT_CONNMARK (combined connmark/CONNMARK module). |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 762 | |
| 763 | config NETFILTER_XT_MATCH_CONNTRACK |
| 764 | tristate '"conntrack" connection tracking match support' |
Patrick McHardy | 587aa64 | 2007-03-14 16:37:25 -0700 | [diff] [blame] | 765 | depends on NF_CONNTRACK |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 766 | default m if NETFILTER_ADVANCED=n |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 767 | help |
| 768 | This is a general conntrack match module, a superset of the state match. |
| 769 | |
| 770 | It allows matching on additional conntrack information, which is |
| 771 | useful in complex configurations, such as NAT gateways with multiple |
| 772 | internet links or tunnels. |
| 773 | |
| 774 | To compile it as a module, choose M here. If unsure, say N. |
| 775 | |
Eric Dumazet | e8648a1 | 2010-07-23 12:59:36 +0200 | [diff] [blame] | 776 | config NETFILTER_XT_MATCH_CPU |
| 777 | tristate '"cpu" match support' |
| 778 | depends on NETFILTER_ADVANCED |
| 779 | help |
| 780 | CPU matching allows you to match packets based on the CPU |
| 781 | currently handling the packet. |
| 782 | |
| 783 | To compile it as a module, choose M here. If unsure, say N. |
| 784 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 785 | config NETFILTER_XT_MATCH_DCCP |
Jan Engelhardt | 4c37799 | 2007-12-04 23:31:59 -0800 | [diff] [blame] | 786 | tristate '"dccp" protocol match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 787 | depends on NETFILTER_ADVANCED |
Patrick McHardy | f3261af | 2008-05-08 01:16:04 -0700 | [diff] [blame] | 788 | default IP_DCCP |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 789 | help |
| 790 | With this option enabled, you will be able to use the iptables |
| 791 | `dccp' match in order to match on DCCP source/destination ports |
| 792 | and DCCP flags. |
| 793 | |
| 794 | If you want to compile it as a module, say M here and read |
Alexander E. Patrakov | 39f5fb3 | 2007-03-16 18:28:43 +0500 | [diff] [blame] | 795 | <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 796 | |
Patrick McHardy | 9291747 | 2011-02-03 00:05:43 +0100 | [diff] [blame] | 797 | config NETFILTER_XT_MATCH_DEVGROUP |
| 798 | tristate '"devgroup" match support' |
| 799 | depends on NETFILTER_ADVANCED |
| 800 | help |
| 801 | This options adds a `devgroup' match, which allows to match on the |
| 802 | device group a network device is assigned to. |
| 803 | |
| 804 | To compile it as a module, choose M here. If unsure, say N. |
| 805 | |
Yasuyuki Kozakai | 9ba1627 | 2006-08-22 00:29:37 -0700 | [diff] [blame] | 806 | config NETFILTER_XT_MATCH_DSCP |
Jan Engelhardt | c3b33e6 | 2007-12-04 23:37:54 -0800 | [diff] [blame] | 807 | tristate '"dscp" and "tos" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 808 | depends on NETFILTER_ADVANCED |
Yasuyuki Kozakai | 9ba1627 | 2006-08-22 00:29:37 -0700 | [diff] [blame] | 809 | help |
| 810 | This option adds a `DSCP' match, which allows you to match against |
| 811 | the IPv4/IPv6 header DSCP field (differentiated services codepoint). |
| 812 | |
| 813 | The DSCP field can have any value between 0x0 and 0x3f inclusive. |
| 814 | |
Jan Engelhardt | c3b33e6 | 2007-12-04 23:37:54 -0800 | [diff] [blame] | 815 | It will also add a "tos" match, which allows you to match packets |
| 816 | based on the Type Of Service fields of the IPv4 packet (which share |
| 817 | the same bits as DSCP). |
| 818 | |
Yasuyuki Kozakai | 9ba1627 | 2006-08-22 00:29:37 -0700 | [diff] [blame] | 819 | To compile it as a module, choose M here. If unsure, say N. |
| 820 | |
Jan Engelhardt | d446a820 | 2011-06-09 21:03:07 +0200 | [diff] [blame] | 821 | config NETFILTER_XT_MATCH_ECN |
| 822 | tristate '"ecn" match support' |
| 823 | depends on NETFILTER_ADVANCED |
| 824 | ---help--- |
| 825 | This option adds an "ECN" match, which allows you to match against |
| 826 | the IPv4 and TCP header ECN fields. |
| 827 | |
| 828 | To compile it as a module, choose M here. If unsure, say N. |
| 829 | |
Yasuyuki Kozakai | dc5ab2f | 2006-04-01 02:22:30 -0800 | [diff] [blame] | 830 | config NETFILTER_XT_MATCH_ESP |
Jan Engelhardt | 4c37799 | 2007-12-04 23:31:59 -0800 | [diff] [blame] | 831 | tristate '"esp" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 832 | depends on NETFILTER_ADVANCED |
Yasuyuki Kozakai | dc5ab2f | 2006-04-01 02:22:30 -0800 | [diff] [blame] | 833 | help |
| 834 | This match extension allows you to match a range of SPIs |
| 835 | inside ESP header of IPSec packets. |
| 836 | |
| 837 | To compile it as a module, choose M here. If unsure, say N. |
| 838 | |
Jan Engelhardt | aba0d34 | 2008-10-08 11:35:17 +0200 | [diff] [blame] | 839 | config NETFILTER_XT_MATCH_HASHLIMIT |
| 840 | tristate '"hashlimit" match support' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 841 | depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n) |
Jan Engelhardt | aba0d34 | 2008-10-08 11:35:17 +0200 | [diff] [blame] | 842 | depends on NETFILTER_ADVANCED |
| 843 | help |
| 844 | This option adds a `hashlimit' match. |
| 845 | |
| 846 | As opposed to `limit', this match dynamically creates a hash table |
| 847 | of limit buckets, based on your selection of source/destination |
| 848 | addresses and/or ports. |
| 849 | |
| 850 | It enables you to express policies like `10kpps for any given |
| 851 | destination address' or `500pps from any given source address' |
| 852 | with a single rule. |
| 853 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 854 | config NETFILTER_XT_MATCH_HELPER |
| 855 | tristate '"helper" match support' |
Patrick McHardy | 587aa64 | 2007-03-14 16:37:25 -0700 | [diff] [blame] | 856 | depends on NF_CONNTRACK |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 857 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 858 | help |
| 859 | Helper matching allows you to match packets in dynamic connections |
| 860 | tracked by a conntrack-helper, ie. ip_conntrack_ftp |
| 861 | |
| 862 | To compile it as a module, choose M here. If unsure, say Y. |
| 863 | |
Jan Engelhardt | cfac5ef | 2009-02-18 18:39:31 +0100 | [diff] [blame] | 864 | config NETFILTER_XT_MATCH_HL |
| 865 | tristate '"hl" hoplimit/TTL match support' |
| 866 | depends on NETFILTER_ADVANCED |
| 867 | ---help--- |
| 868 | HL matching allows you to match packets based on the hoplimit |
| 869 | in the IPv6 header, or the time-to-live field in the IPv4 |
| 870 | header of the packet. |
| 871 | |
Jan Engelhardt | f72e25a | 2008-01-14 23:42:47 -0800 | [diff] [blame] | 872 | config NETFILTER_XT_MATCH_IPRANGE |
| 873 | tristate '"iprange" address range match support' |
Jan Engelhardt | f72e25a | 2008-01-14 23:42:47 -0800 | [diff] [blame] | 874 | depends on NETFILTER_ADVANCED |
| 875 | ---help--- |
| 876 | This option adds a "iprange" match, which allows you to match based on |
| 877 | an IP address range. (Normal iptables only matches on single addresses |
| 878 | with an optional mask.) |
| 879 | |
| 880 | If unsure, say M. |
| 881 | |
Hannes Eder | 9c3e1c3 | 2010-07-23 12:42:58 +0200 | [diff] [blame] | 882 | config NETFILTER_XT_MATCH_IPVS |
| 883 | tristate '"ipvs" match support' |
| 884 | depends on IP_VS |
| 885 | depends on NETFILTER_ADVANCED |
| 886 | depends on NF_CONNTRACK |
| 887 | help |
| 888 | This option allows you to match against IPVS properties of a packet. |
| 889 | |
| 890 | If unsure, say N. |
| 891 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 892 | config NETFILTER_XT_MATCH_LENGTH |
| 893 | tristate '"length" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 894 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 895 | help |
| 896 | This option allows you to match the length of a packet against a |
| 897 | specific value or range of values. |
| 898 | |
| 899 | To compile it as a module, choose M here. If unsure, say N. |
| 900 | |
| 901 | config NETFILTER_XT_MATCH_LIMIT |
| 902 | tristate '"limit" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 903 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 904 | help |
| 905 | limit matching allows you to control the rate at which a rule can be |
| 906 | matched: mainly useful in combination with the LOG target ("LOG |
| 907 | target support", below) and to avoid some Denial of Service attacks. |
| 908 | |
| 909 | To compile it as a module, choose M here. If unsure, say N. |
| 910 | |
| 911 | config NETFILTER_XT_MATCH_MAC |
| 912 | tristate '"mac" address match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 913 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 914 | help |
| 915 | MAC matching allows you to match packets based on the source |
| 916 | Ethernet address of the packet. |
| 917 | |
| 918 | To compile it as a module, choose M here. If unsure, say N. |
| 919 | |
| 920 | config NETFILTER_XT_MATCH_MARK |
| 921 | tristate '"mark" match support' |
Jan Engelhardt | 28b9498 | 2009-02-28 03:23:57 +0100 | [diff] [blame] | 922 | depends on NETFILTER_ADVANCED |
| 923 | select NETFILTER_XT_MARK |
| 924 | ---help--- |
| 925 | This is a backwards-compat option for the user's convenience |
| 926 | (e.g. when running oldconfig). It selects |
| 927 | CONFIG_NETFILTER_XT_MARK (combined mark/MARK module). |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 928 | |
Jan Engelhardt | aba0d34 | 2008-10-08 11:35:17 +0200 | [diff] [blame] | 929 | config NETFILTER_XT_MATCH_MULTIPORT |
| 930 | tristate '"multiport" Multiple port match support' |
Jan Engelhardt | aba0d34 | 2008-10-08 11:35:17 +0200 | [diff] [blame] | 931 | depends on NETFILTER_ADVANCED |
| 932 | help |
| 933 | Multiport matching allows you to match TCP or UDP packets based on |
| 934 | a series of source or destination ports: normally a rule can only |
| 935 | match a single range of ports. |
| 936 | |
| 937 | To compile it as a module, choose M here. If unsure, say N. |
| 938 | |
Pablo Neira Ayuso | ceb98d0 | 2011-12-23 14:28:59 +0100 | [diff] [blame] | 939 | config NETFILTER_XT_MATCH_NFACCT |
| 940 | tristate '"nfacct" match support' |
Pablo Neira Ayuso | bc94b52 | 2011-12-28 15:03:30 +0000 | [diff] [blame] | 941 | depends on NETFILTER_ADVANCED |
Pablo Neira Ayuso | ceb98d0 | 2011-12-23 14:28:59 +0100 | [diff] [blame] | 942 | select NETFILTER_NETLINK_ACCT |
| 943 | help |
| 944 | This option allows you to use the extended accounting through |
| 945 | nfnetlink_acct. |
| 946 | |
| 947 | To compile it as a module, choose M here. If unsure, say N. |
| 948 | |
Jan Engelhardt | 115bc8f | 2010-03-16 20:06:55 +0100 | [diff] [blame] | 949 | config NETFILTER_XT_MATCH_OSF |
| 950 | tristate '"osf" Passive OS fingerprint match' |
| 951 | depends on NETFILTER_ADVANCED && NETFILTER_NETLINK |
| 952 | help |
| 953 | This option selects the Passive OS Fingerprinting match module |
| 954 | that allows to passively match the remote operating system by |
| 955 | analyzing incoming TCP SYN packets. |
| 956 | |
| 957 | Rules and loading software can be downloaded from |
| 958 | http://www.ioremap.net/projects/osf |
| 959 | |
| 960 | To compile it as a module, choose M here. If unsure, say N. |
| 961 | |
Jan Engelhardt | 0265ab4 | 2007-12-04 23:27:38 -0800 | [diff] [blame] | 962 | config NETFILTER_XT_MATCH_OWNER |
| 963 | tristate '"owner" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 964 | depends on NETFILTER_ADVANCED |
Jan Engelhardt | 0265ab4 | 2007-12-04 23:27:38 -0800 | [diff] [blame] | 965 | ---help--- |
| 966 | Socket owner matching allows you to match locally-generated packets |
| 967 | based on who created the socket: the user or group. It is also |
| 968 | possible to check whether a socket actually exists. |
| 969 | |
Patrick McHardy | c4b8851 | 2006-03-20 18:03:40 -0800 | [diff] [blame] | 970 | config NETFILTER_XT_MATCH_POLICY |
| 971 | tristate 'IPsec "policy" match support' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 972 | depends on XFRM |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 973 | default m if NETFILTER_ADVANCED=n |
Patrick McHardy | c4b8851 | 2006-03-20 18:03:40 -0800 | [diff] [blame] | 974 | help |
| 975 | Policy matching allows you to match packets based on the |
| 976 | IPsec policy that was used during decapsulation/will |
| 977 | be used during encapsulation. |
| 978 | |
| 979 | To compile it as a module, choose M here. If unsure, say N. |
| 980 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 981 | config NETFILTER_XT_MATCH_PHYSDEV |
| 982 | tristate '"physdev" match support' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 983 | depends on BRIDGE && BRIDGE_NETFILTER |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 984 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 985 | help |
| 986 | Physdev packet matching matches against the physical bridge ports |
| 987 | the IP packet arrived on or will leave by. |
| 988 | |
| 989 | To compile it as a module, choose M here. If unsure, say N. |
| 990 | |
| 991 | config NETFILTER_XT_MATCH_PKTTYPE |
| 992 | tristate '"pkttype" packet type match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 993 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 994 | help |
| 995 | Packet type matching allows you to match a packet by |
| 996 | its "class", eg. BROADCAST, MULTICAST, ... |
| 997 | |
| 998 | Typical usage: |
| 999 | iptables -A INPUT -m pkttype --pkt-type broadcast -j LOG |
| 1000 | |
| 1001 | To compile it as a module, choose M here. If unsure, say N. |
| 1002 | |
Patrick McHardy | 62b7743 | 2006-05-29 18:20:32 -0700 | [diff] [blame] | 1003 | config NETFILTER_XT_MATCH_QUOTA |
| 1004 | tristate '"quota" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1005 | depends on NETFILTER_ADVANCED |
Patrick McHardy | 62b7743 | 2006-05-29 18:20:32 -0700 | [diff] [blame] | 1006 | help |
| 1007 | This option adds a `quota' match, which allows to match on a |
| 1008 | byte counter. |
| 1009 | |
| 1010 | If you want to compile it as a module, say M here and read |
Alexander E. Patrakov | 39f5fb3 | 2007-03-16 18:28:43 +0500 | [diff] [blame] | 1011 | <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. |
Patrick McHardy | 62b7743 | 2006-05-29 18:20:32 -0700 | [diff] [blame] | 1012 | |
Patrick McHardy | 50c164a | 2007-12-04 13:02:19 +0100 | [diff] [blame] | 1013 | config NETFILTER_XT_MATCH_RATEEST |
| 1014 | tristate '"rateest" match support' |
Patrick McHardy | b26e76b | 2008-01-14 23:30:56 -0800 | [diff] [blame] | 1015 | depends on NETFILTER_ADVANCED |
Patrick McHardy | 50c164a | 2007-12-04 13:02:19 +0100 | [diff] [blame] | 1016 | select NETFILTER_XT_TARGET_RATEEST |
| 1017 | help |
| 1018 | This option adds a `rateest' match, which allows to match on the |
| 1019 | rate estimated by the RATEEST target. |
| 1020 | |
| 1021 | To compile it as a module, choose M here. If unsure, say N. |
| 1022 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1023 | config NETFILTER_XT_MATCH_REALM |
| 1024 | tristate '"realm" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1025 | depends on NETFILTER_ADVANCED |
Patrick McHardy | c7066f7 | 2011-01-14 13:36:42 +0100 | [diff] [blame] | 1026 | select IP_ROUTE_CLASSID |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1027 | help |
| 1028 | This option adds a `realm' match, which allows you to use the realm |
| 1029 | key from the routing subsystem inside iptables. |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1030 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1031 | This match pretty much resembles the CONFIG_NET_CLS_ROUTE4 option |
| 1032 | in tc world. |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1033 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1034 | If you want to compile it as a module, say M here and read |
Alexander E. Patrakov | 39f5fb3 | 2007-03-16 18:28:43 +0500 | [diff] [blame] | 1035 | <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1036 | |
Jan Engelhardt | e948b20 | 2008-10-08 11:35:00 +0200 | [diff] [blame] | 1037 | config NETFILTER_XT_MATCH_RECENT |
| 1038 | tristate '"recent" match support' |
Jan Engelhardt | e948b20 | 2008-10-08 11:35:00 +0200 | [diff] [blame] | 1039 | depends on NETFILTER_ADVANCED |
| 1040 | ---help--- |
| 1041 | This match is used for creating one or many lists of recently |
| 1042 | used addresses and then matching against that/those list(s). |
| 1043 | |
| 1044 | Short options are available by using 'iptables -m recent -h' |
| 1045 | Official Website: <http://snowman.net/projects/ipt_recent/> |
| 1046 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1047 | config NETFILTER_XT_MATCH_SCTP |
Patrick McHardy | d5af981 | 2006-07-24 22:55:29 -0700 | [diff] [blame] | 1048 | tristate '"sctp" protocol match support (EXPERIMENTAL)' |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 1049 | depends on EXPERIMENTAL |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1050 | depends on NETFILTER_ADVANCED |
Patrick McHardy | f3261af | 2008-05-08 01:16:04 -0700 | [diff] [blame] | 1051 | default IP_SCTP |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1052 | help |
| 1053 | With this option enabled, you will be able to use the |
| 1054 | `sctp' match in order to match on SCTP source/destination ports |
| 1055 | and SCTP chunk types. |
| 1056 | |
| 1057 | If you want to compile it as a module, say M here and read |
Alexander E. Patrakov | 39f5fb3 | 2007-03-16 18:28:43 +0500 | [diff] [blame] | 1058 | <file:Documentation/kbuild/modules.txt>. If unsure, say `N'. |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1059 | |
KOVACS Krisztian | 136cdc7 | 2008-10-08 11:35:12 +0200 | [diff] [blame] | 1060 | config NETFILTER_XT_MATCH_SOCKET |
| 1061 | tristate '"socket" match support (EXPERIMENTAL)' |
| 1062 | depends on EXPERIMENTAL |
| 1063 | depends on NETFILTER_TPROXY |
| 1064 | depends on NETFILTER_XTABLES |
| 1065 | depends on NETFILTER_ADVANCED |
Laszlo Attila Toth | acda074 | 2009-05-01 15:23:10 -0700 | [diff] [blame] | 1066 | depends on !NF_CONNTRACK || NF_CONNTRACK |
KOVACS Krisztian | 136cdc7 | 2008-10-08 11:35:12 +0200 | [diff] [blame] | 1067 | select NF_DEFRAG_IPV4 |
KOVACS Krisztian | f6318e5 | 2010-10-24 23:38:32 +0000 | [diff] [blame] | 1068 | select NF_DEFRAG_IPV6 if IP6_NF_IPTABLES |
KOVACS Krisztian | 136cdc7 | 2008-10-08 11:35:12 +0200 | [diff] [blame] | 1069 | help |
| 1070 | This option adds a `socket' match, which can be used to match |
| 1071 | packets for which a TCP or UDP socket lookup finds a valid socket. |
| 1072 | It can be used in combination with the MARK target and policy |
| 1073 | routing to implement full featured non-locally bound sockets. |
| 1074 | |
| 1075 | To compile it as a module, choose M here. If unsure, say N. |
| 1076 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1077 | config NETFILTER_XT_MATCH_STATE |
| 1078 | tristate '"state" match support' |
Patrick McHardy | 587aa64 | 2007-03-14 16:37:25 -0700 | [diff] [blame] | 1079 | depends on NF_CONNTRACK |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1080 | default m if NETFILTER_ADVANCED=n |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1081 | help |
| 1082 | Connection state matching allows you to match packets based on their |
| 1083 | relationship to a tracked connection (ie. previous packets). This |
| 1084 | is a powerful tool for packet classification. |
| 1085 | |
| 1086 | To compile it as a module, choose M here. If unsure, say N. |
| 1087 | |
Patrick McHardy | f338980 | 2006-05-29 18:21:00 -0700 | [diff] [blame] | 1088 | config NETFILTER_XT_MATCH_STATISTIC |
| 1089 | tristate '"statistic" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1090 | depends on NETFILTER_ADVANCED |
Patrick McHardy | f338980 | 2006-05-29 18:21:00 -0700 | [diff] [blame] | 1091 | help |
Patrick McHardy | 68c1692 | 2006-06-27 03:02:14 -0700 | [diff] [blame] | 1092 | This option adds a `statistic' match, which allows you to match |
| 1093 | on packets periodically or randomly with a given percentage. |
| 1094 | |
| 1095 | To compile it as a module, choose M here. If unsure, say N. |
Patrick McHardy | f338980 | 2006-05-29 18:21:00 -0700 | [diff] [blame] | 1096 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1097 | config NETFILTER_XT_MATCH_STRING |
| 1098 | tristate '"string" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1099 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1100 | select TEXTSEARCH |
| 1101 | select TEXTSEARCH_KMP |
| 1102 | select TEXTSEARCH_BM |
| 1103 | select TEXTSEARCH_FSM |
| 1104 | help |
| 1105 | This option adds a `string' match, which allows you to look for |
| 1106 | pattern matchings in packets. |
| 1107 | |
| 1108 | To compile it as a module, choose M here. If unsure, say N. |
| 1109 | |
| 1110 | config NETFILTER_XT_MATCH_TCPMSS |
| 1111 | tristate '"tcpmss" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1112 | depends on NETFILTER_ADVANCED |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 1113 | help |
| 1114 | This option adds a `tcpmss' match, which allows you to examine the |
| 1115 | MSS value of TCP SYN packets, which control the maximum packet size |
| 1116 | for that connection. |
| 1117 | |
| 1118 | To compile it as a module, choose M here. If unsure, say N. |
| 1119 | |
Jan Engelhardt | ee4411a | 2007-09-28 14:46:43 -0700 | [diff] [blame] | 1120 | config NETFILTER_XT_MATCH_TIME |
| 1121 | tristate '"time" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1122 | depends on NETFILTER_ADVANCED |
Jan Engelhardt | ee4411a | 2007-09-28 14:46:43 -0700 | [diff] [blame] | 1123 | ---help--- |
| 1124 | This option adds a "time" match, which allows you to match based on |
| 1125 | the packet arrival time (at the machine which netfilter is running) |
| 1126 | on) or departure time/date (for locally generated packets). |
| 1127 | |
| 1128 | If you say Y here, try `iptables -m time --help` for |
| 1129 | more information. |
| 1130 | |
| 1131 | If you want to compile it as a module, say M here. |
| 1132 | If unsure, say N. |
| 1133 | |
Jan Engelhardt | 1b50b8a | 2007-07-07 22:20:36 -0700 | [diff] [blame] | 1134 | config NETFILTER_XT_MATCH_U32 |
| 1135 | tristate '"u32" match support' |
Patrick McHardy | 33b8e77 | 2007-12-17 22:47:05 -0800 | [diff] [blame] | 1136 | depends on NETFILTER_ADVANCED |
Jan Engelhardt | 1b50b8a | 2007-07-07 22:20:36 -0700 | [diff] [blame] | 1137 | ---help--- |
| 1138 | u32 allows you to extract quantities of up to 4 bytes from a packet, |
| 1139 | AND them with specified masks, shift them by specified amounts and |
| 1140 | test whether the results are in any of a set of specified ranges. |
| 1141 | The specification of what to extract is general enough to skip over |
| 1142 | headers with lengths stored in the packet, as in IP or TCP header |
| 1143 | lengths. |
| 1144 | |
| 1145 | Details and examples are in the kernel module source. |
| 1146 | |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 1147 | endif # NETFILTER_XTABLES |
Harald Welte | a6c1cd57 | 2006-02-13 15:42:48 -0800 | [diff] [blame] | 1148 | |
Jan Engelhardt | c2df73d | 2008-10-08 11:35:18 +0200 | [diff] [blame] | 1149 | endmenu |
Harald Welte | f9e815b | 2005-08-09 19:30:24 -0700 | [diff] [blame] | 1150 | |
Jozsef Kadlecsik | a7b4f98 | 2011-02-01 15:28:35 +0100 | [diff] [blame] | 1151 | source "net/netfilter/ipset/Kconfig" |
| 1152 | |
Julius Volz | cb7f6a7 | 2008-09-19 12:32:57 +0200 | [diff] [blame] | 1153 | source "net/netfilter/ipvs/Kconfig" |