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 |
| 5 | tristate "Netfilter netlink interface" |
| 6 | help |
| 7 | If this option is enabled, the kernel will include support |
| 8 | for the new netfilter netlink interface. |
Harald Welte | 7af4cc3 | 2005-08-09 19:44:15 -0700 | [diff] [blame] | 9 | |
| 10 | config NETFILTER_NETLINK_QUEUE |
| 11 | tristate "Netfilter NFQUEUE over NFNETLINK interface" |
| 12 | depends on NETFILTER_NETLINK |
| 13 | help |
Thomas Vögtle | 50b521a | 2006-03-22 13:53:48 -0800 | [diff] [blame] | 14 | If this option is enabled, the kernel will include support |
Harald Welte | 7af4cc3 | 2005-08-09 19:44:15 -0700 | [diff] [blame] | 15 | for queueing packets via NFNETLINK. |
| 16 | |
Harald Welte | 0597f26 | 2005-08-09 19:58:39 -0700 | [diff] [blame] | 17 | config NETFILTER_NETLINK_LOG |
| 18 | tristate "Netfilter LOG over NFNETLINK interface" |
| 19 | depends on NETFILTER_NETLINK |
| 20 | help |
| 21 | If this option is enabled, the kernel will include support |
| 22 | for logging packets via NFNETLINK. |
| 23 | |
| 24 | This obsoletes the existing ipt_ULOG and ebg_ulog mechanisms, |
| 25 | and is also scheduled to replace the old syslog-based ipt_LOG |
| 26 | and ip6t_LOG modules. |
| 27 | |
Patrick McHardy | b321e14 | 2006-12-02 22:05:46 -0800 | [diff] [blame] | 28 | config NF_CONNTRACK_ENABLED |
| 29 | tristate "Netfilter connection tracking support" |
| 30 | help |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 31 | Connection tracking keeps a record of what packets have passed |
| 32 | through your machine, in order to figure out how they are related |
| 33 | into connections. |
| 34 | |
Patrick McHardy | b321e14 | 2006-12-02 22:05:46 -0800 | [diff] [blame] | 35 | This is required to do Masquerading or other kinds of Network |
| 36 | Address Translation (except for Fast NAT). It can also be used to |
| 37 | enhance packet filtering (see `Connection state match support' |
| 38 | below). |
| 39 | |
| 40 | To compile it as a module, choose M here. If unsure, say N. |
| 41 | |
| 42 | choice |
| 43 | prompt "Netfilter connection tracking support" |
| 44 | depends on NF_CONNTRACK_ENABLED |
| 45 | |
| 46 | config NF_CONNTRACK_SUPPORT |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 47 | bool "Layer 3 Independent Connection tracking" |
Patrick McHardy | b321e14 | 2006-12-02 22:05:46 -0800 | [diff] [blame] | 48 | help |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 49 | Layer 3 independent connection tracking is experimental scheme |
| 50 | which generalize ip_conntrack to support other layer 3 protocols. |
| 51 | |
Patrick McHardy | b321e14 | 2006-12-02 22:05:46 -0800 | [diff] [blame] | 52 | This is required to do Masquerading or other kinds of Network |
| 53 | Address Translation (except for Fast NAT). It can also be used to |
| 54 | enhance packet filtering (see `Connection state match support' |
| 55 | below). |
| 56 | |
| 57 | config IP_NF_CONNTRACK_SUPPORT |
Patrick McHardy | a3c4797 | 2006-12-02 22:11:01 -0800 | [diff] [blame] | 58 | bool "Layer 3 Dependent Connection tracking (OBSOLETE)" |
Patrick McHardy | b321e14 | 2006-12-02 22:05:46 -0800 | [diff] [blame] | 59 | help |
| 60 | The old, Layer 3 dependent ip_conntrack subsystem of netfilter. |
| 61 | |
| 62 | This is required to do Masquerading or other kinds of Network |
| 63 | Address Translation (except for Fast NAT). It can also be used to |
| 64 | enhance packet filtering (see `Connection state match support' |
| 65 | below). |
| 66 | |
| 67 | endchoice |
| 68 | |
| 69 | config NF_CONNTRACK |
| 70 | tristate |
| 71 | default m if NF_CONNTRACK_SUPPORT && NF_CONNTRACK_ENABLED=m |
| 72 | default y if NF_CONNTRACK_SUPPORT && NF_CONNTRACK_ENABLED=y |
| 73 | |
| 74 | config IP_NF_CONNTRACK |
| 75 | tristate |
| 76 | default m if IP_NF_CONNTRACK_SUPPORT && NF_CONNTRACK_ENABLED=m |
| 77 | default y if IP_NF_CONNTRACK_SUPPORT && NF_CONNTRACK_ENABLED=y |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 78 | |
| 79 | config NF_CT_ACCT |
| 80 | bool "Connection tracking flow accounting" |
| 81 | depends on NF_CONNTRACK |
| 82 | help |
| 83 | If this option is enabled, the connection tracking code will |
| 84 | keep per-flow packet and byte counters. |
| 85 | |
| 86 | Those counters can be used for flow-based accounting or the |
| 87 | `connbytes' match. |
| 88 | |
| 89 | If unsure, say `N'. |
| 90 | |
| 91 | config NF_CONNTRACK_MARK |
| 92 | bool 'Connection mark tracking support' |
| 93 | depends on NF_CONNTRACK |
| 94 | help |
| 95 | This option enables support for connection marks, used by the |
| 96 | `CONNMARK' target and `connmark' match. Similar to the mark value |
| 97 | of packets, but this mark value is kept in the conntrack session |
| 98 | instead of the individual packets. |
| 99 | |
James Morris | 7c9728c | 2006-06-09 00:31:46 -0700 | [diff] [blame] | 100 | config NF_CONNTRACK_SECMARK |
| 101 | bool 'Connection tracking security mark support' |
| 102 | depends on NF_CONNTRACK && NETWORK_SECMARK |
| 103 | help |
| 104 | This option enables security markings to be applied to |
| 105 | connections. Typically they are copied to connections from |
| 106 | packets using the CONNSECMARK target and copied back from |
| 107 | connections to packets with the same target, with the packets |
| 108 | being originally labeled via SECMARK. |
| 109 | |
| 110 | If unsure, say 'N'. |
| 111 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 112 | config NF_CONNTRACK_EVENTS |
Patrick McHardy | a795756 | 2005-12-05 13:36:25 -0800 | [diff] [blame] | 113 | bool "Connection tracking events (EXPERIMENTAL)" |
| 114 | depends on EXPERIMENTAL && NF_CONNTRACK |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 115 | help |
| 116 | If this option is enabled, the connection tracking code will |
| 117 | provide a notifier chain that can be used by other kernel code |
Thomas Vögtle | 50b521a | 2006-03-22 13:53:48 -0800 | [diff] [blame] | 118 | to get notified about changes in the connection tracking state. |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 119 | |
| 120 | If unsure, say `N'. |
| 121 | |
Patrick McHardy | f09943f | 2006-12-02 22:09:41 -0800 | [diff] [blame] | 122 | config NF_CT_PROTO_GRE |
| 123 | tristate |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 124 | depends on NF_CONNTRACK |
Patrick McHardy | f09943f | 2006-12-02 22:09:41 -0800 | [diff] [blame] | 125 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 126 | config NF_CT_PROTO_SCTP |
Patrick McHardy | a3c4797 | 2006-12-02 22:11:01 -0800 | [diff] [blame] | 127 | tristate 'SCTP protocol connection tracking support (EXPERIMENTAL)' |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 128 | depends on EXPERIMENTAL && NF_CONNTRACK |
| 129 | default n |
| 130 | help |
| 131 | With this option enabled, the layer 3 independent connection |
| 132 | tracking code will be able to do state tracking on SCTP connections. |
| 133 | |
| 134 | If you want to compile it as a module, say M here and read |
| 135 | Documentation/modules.txt. If unsure, say `N'. |
| 136 | |
Patrick McHardy | 1695890 | 2006-12-02 22:08:26 -0800 | [diff] [blame] | 137 | config NF_CONNTRACK_AMANDA |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 138 | tristate "Amanda backup protocol support" |
| 139 | depends on NF_CONNTRACK |
Patrick McHardy | 1695890 | 2006-12-02 22:08:26 -0800 | [diff] [blame] | 140 | select TEXTSEARCH |
| 141 | select TEXTSEARCH_KMP |
| 142 | help |
| 143 | If you are running the Amanda backup package <http://www.amanda.org/> |
| 144 | on this machine or machines that will be MASQUERADED through this |
| 145 | machine, then you may want to enable this feature. This allows the |
| 146 | connection tracking and natting code to allow the sub-channels that |
| 147 | Amanda requires for communication of the backup data, messages and |
| 148 | index. |
| 149 | |
| 150 | To compile it as a module, choose M here. If unsure, say N. |
| 151 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 152 | config NF_CONNTRACK_FTP |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 153 | tristate "FTP protocol support" |
| 154 | depends on NF_CONNTRACK |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 155 | help |
| 156 | Tracking FTP connections is problematic: special helpers are |
| 157 | required for tracking them, and doing masquerading and other forms |
| 158 | of Network Address Translation on them. |
| 159 | |
| 160 | This is FTP support on Layer 3 independent connection tracking. |
| 161 | Layer 3 independent connection tracking is experimental scheme |
| 162 | which generalize ip_conntrack to support other layer 3 protocols. |
| 163 | |
| 164 | To compile it as a module, choose M here. If unsure, say N. |
| 165 | |
Patrick McHardy | f587de0 | 2006-12-02 22:08:46 -0800 | [diff] [blame] | 166 | config NF_CONNTRACK_H323 |
| 167 | tristate "H.323 protocol support (EXPERIMENTAL)" |
Adrian Bunk | 3e82198 | 2007-02-02 19:33:52 -0800 | [diff] [blame] | 168 | depends on EXPERIMENTAL && NF_CONNTRACK && (IPV6 || IPV6=n) |
Patrick McHardy | f587de0 | 2006-12-02 22:08:46 -0800 | [diff] [blame] | 169 | help |
| 170 | H.323 is a VoIP signalling protocol from ITU-T. As one of the most |
| 171 | important VoIP protocols, it is widely used by voice hardware and |
| 172 | software including voice gateways, IP phones, Netmeeting, OpenPhone, |
| 173 | Gnomemeeting, etc. |
| 174 | |
| 175 | With this module you can support H.323 on a connection tracking/NAT |
| 176 | firewall. |
| 177 | |
| 178 | This module supports RAS, Fast Start, H.245 Tunnelling, Call |
| 179 | Forwarding, RTP/RTCP and T.120 based audio, video, fax, chat, |
| 180 | whiteboard, file transfer, etc. For more information, please |
| 181 | visit http://nath323.sourceforge.net/. |
| 182 | |
| 183 | To compile it as a module, choose M here. If unsure, say N. |
| 184 | |
Patrick McHardy | 869f37d8 | 2006-12-02 22:09:06 -0800 | [diff] [blame] | 185 | config NF_CONNTRACK_IRC |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 186 | tristate "IRC protocol support" |
| 187 | depends on NF_CONNTRACK |
Patrick McHardy | 869f37d8 | 2006-12-02 22:09:06 -0800 | [diff] [blame] | 188 | help |
| 189 | There is a commonly-used extension to IRC called |
| 190 | Direct Client-to-Client Protocol (DCC). This enables users to send |
| 191 | files to each other, and also chat to each other without the need |
| 192 | of a server. DCC Sending is used anywhere you send files over IRC, |
| 193 | and DCC Chat is most commonly used by Eggdrop bots. If you are |
| 194 | using NAT, this extension will enable you to send files and initiate |
| 195 | chats. Note that you do NOT need this extension to get files or |
| 196 | have others initiate chats, or everything else in IRC. |
| 197 | |
| 198 | To compile it as a module, choose M here. If unsure, say N. |
| 199 | |
Patrick McHardy | 92703ee | 2006-12-02 22:09:24 -0800 | [diff] [blame] | 200 | config NF_CONNTRACK_NETBIOS_NS |
| 201 | tristate "NetBIOS name service protocol support (EXPERIMENTAL)" |
| 202 | depends on EXPERIMENTAL && NF_CONNTRACK |
| 203 | help |
| 204 | NetBIOS name service requests are sent as broadcast messages from an |
| 205 | unprivileged port and responded to with unicast messages to the |
| 206 | same port. This make them hard to firewall properly because connection |
| 207 | tracking doesn't deal with broadcasts. This helper tracks locally |
| 208 | originating NetBIOS name service requests and the corresponding |
| 209 | responses. It relies on correct IP address configuration, specifically |
| 210 | netmask and broadcast address. When properly configured, the output |
| 211 | of "ip address show" should look similar to this: |
| 212 | |
| 213 | $ ip -4 address show eth0 |
| 214 | 4: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000 |
| 215 | inet 172.16.2.252/24 brd 172.16.2.255 scope global eth0 |
| 216 | |
| 217 | To compile it as a module, choose M here. If unsure, say N. |
| 218 | |
Patrick McHardy | f09943f | 2006-12-02 22:09:41 -0800 | [diff] [blame] | 219 | config NF_CONNTRACK_PPTP |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 220 | tristate "PPtP protocol support" |
| 221 | depends on NF_CONNTRACK |
Patrick McHardy | f09943f | 2006-12-02 22:09:41 -0800 | [diff] [blame] | 222 | select NF_CT_PROTO_GRE |
| 223 | help |
| 224 | This module adds support for PPTP (Point to Point Tunnelling |
| 225 | Protocol, RFC2637) connection tracking and NAT. |
| 226 | |
| 227 | If you are running PPTP sessions over a stateful firewall or NAT |
| 228 | box, you may want to enable this feature. |
| 229 | |
| 230 | Please note that not all PPTP modes of operation are supported yet. |
| 231 | Specifically these limitations exist: |
| 232 | - Blindy assumes that control connections are always established |
| 233 | in PNS->PAC direction. This is a violation of RFC2637. |
| 234 | - Only supports a single call within each session |
| 235 | |
| 236 | To compile it as a module, choose M here. If unsure, say N. |
| 237 | |
Michal Schmidt | 6fecd19 | 2007-02-07 15:05:12 -0800 | [diff] [blame] | 238 | config NF_CONNTRACK_SANE |
| 239 | tristate "SANE protocol support (EXPERIMENTAL)" |
| 240 | depends on EXPERIMENTAL && NF_CONNTRACK |
| 241 | help |
| 242 | SANE is a protocol for remote access to scanners as implemented |
| 243 | by the 'saned' daemon. Like FTP, it uses separate control and |
| 244 | data connections. |
| 245 | |
| 246 | With this module you can support SANE on a connection tracking |
| 247 | firewall. |
| 248 | |
| 249 | To compile it as a module, choose M here. If unsure, say N. |
| 250 | |
Patrick McHardy | 9fafcd7 | 2006-12-02 22:09:57 -0800 | [diff] [blame] | 251 | config NF_CONNTRACK_SIP |
| 252 | tristate "SIP protocol support (EXPERIMENTAL)" |
| 253 | depends on EXPERIMENTAL && NF_CONNTRACK |
| 254 | help |
| 255 | SIP is an application-layer control protocol that can establish, |
| 256 | modify, and terminate multimedia sessions (conferences) such as |
| 257 | Internet telephony calls. With the ip_conntrack_sip and |
| 258 | the nf_nat_sip modules you can support the protocol on a connection |
| 259 | tracking/NATing firewall. |
| 260 | |
| 261 | To compile it as a module, choose M here. If unsure, say N. |
| 262 | |
Patrick McHardy | a536df3 | 2006-12-02 22:10:18 -0800 | [diff] [blame] | 263 | config NF_CONNTRACK_TFTP |
Patrick McHardy | c9386cf | 2007-01-04 12:16:06 -0800 | [diff] [blame] | 264 | tristate "TFTP protocol support" |
| 265 | depends on NF_CONNTRACK |
Patrick McHardy | a536df3 | 2006-12-02 22:10:18 -0800 | [diff] [blame] | 266 | help |
| 267 | TFTP connection tracking helper, this is required depending |
| 268 | on how restrictive your ruleset is. |
| 269 | If you are using a tftp client behind -j SNAT or -j MASQUERADING |
| 270 | you will need this. |
| 271 | |
| 272 | To compile it as a module, choose M here. If unsure, say N. |
| 273 | |
Pablo Neira Ayuso | c1d10ad | 2006-01-05 12:19:05 -0800 | [diff] [blame] | 274 | config NF_CT_NETLINK |
| 275 | tristate 'Connection tracking netlink interface (EXPERIMENTAL)' |
| 276 | depends on EXPERIMENTAL && NF_CONNTRACK && NETFILTER_NETLINK |
| 277 | depends on NF_CONNTRACK!=y || NETFILTER_NETLINK!=m |
Patrick McHardy | ca8fbb8 | 2007-03-22 12:29:57 -0700 | [diff] [blame] | 278 | depends on NF_NAT=n || NF_NAT |
Pablo Neira Ayuso | c1d10ad | 2006-01-05 12:19:05 -0800 | [diff] [blame] | 279 | help |
| 280 | This option enables support for a netlink-based userspace interface |
| 281 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 282 | config NETFILTER_XTABLES |
| 283 | tristate "Netfilter Xtables support (required for ip_tables)" |
| 284 | help |
| 285 | This is required if you intend to use any of ip_tables, |
| 286 | ip6_tables or arp_tables. |
| 287 | |
| 288 | # alphabetically ordered list of targets |
| 289 | |
| 290 | config NETFILTER_XT_TARGET_CLASSIFY |
| 291 | tristate '"CLASSIFY" target support' |
| 292 | depends on NETFILTER_XTABLES |
| 293 | help |
| 294 | This option adds a `CLASSIFY' target, which enables the user to set |
| 295 | the priority of a packet. Some qdiscs can use this value for |
| 296 | classification, among these are: |
| 297 | |
| 298 | atm, cbq, dsmark, pfifo_fast, htb, prio |
| 299 | |
| 300 | To compile it as a module, choose M here. If unsure, say N. |
| 301 | |
| 302 | config NETFILTER_XT_TARGET_CONNMARK |
| 303 | tristate '"CONNMARK" target support' |
| 304 | depends on NETFILTER_XTABLES |
| 305 | depends on IP_NF_MANGLE || IP6_NF_MANGLE |
Patrick McHardy | a3c941b | 2007-02-12 11:15:02 -0800 | [diff] [blame] | 306 | depends on IP_NF_CONNTRACK || NF_CONNTRACK |
| 307 | select IP_NF_CONNTRACK_MARK if IP_NF_CONNTRACK |
| 308 | select NF_CONNTRACK_MARK if NF_CONNTRACK |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 309 | help |
| 310 | This option adds a `CONNMARK' target, which allows one to manipulate |
| 311 | the connection mark value. Similar to the MARK target, but |
| 312 | affects the connection mark value rather than the packet mark value. |
| 313 | |
| 314 | If you want to compile it as a module, say M here and read |
| 315 | <file:Documentation/modules.txt>. The module will be called |
| 316 | ipt_CONNMARK.o. If unsure, say `N'. |
| 317 | |
Yasuyuki Kozakai | a468701 | 2006-08-22 00:30:26 -0700 | [diff] [blame] | 318 | config NETFILTER_XT_TARGET_DSCP |
| 319 | tristate '"DSCP" target support' |
| 320 | depends on NETFILTER_XTABLES |
| 321 | depends on IP_NF_MANGLE || IP6_NF_MANGLE |
| 322 | help |
| 323 | This option adds a `DSCP' target, which allows you to manipulate |
| 324 | the IPv4/IPv6 header DSCP field (differentiated services codepoint). |
| 325 | |
| 326 | The DSCP field can have any value between 0x0 and 0x3f inclusive. |
| 327 | |
| 328 | To compile it as a module, choose M here. If unsure, say N. |
| 329 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 330 | config NETFILTER_XT_TARGET_MARK |
| 331 | tristate '"MARK" target support' |
| 332 | depends on NETFILTER_XTABLES |
| 333 | help |
| 334 | This option adds a `MARK' target, which allows you to create rules |
| 335 | in the `mangle' table which alter the netfilter mark (nfmark) field |
| 336 | associated with the packet prior to routing. This can change |
| 337 | the routing method (see `Use netfilter MARK value as routing |
| 338 | key') and can also be used by other subsystems to change their |
| 339 | behavior. |
| 340 | |
| 341 | To compile it as a module, choose M here. If unsure, say N. |
| 342 | |
| 343 | config NETFILTER_XT_TARGET_NFQUEUE |
| 344 | tristate '"NFQUEUE" target Support' |
| 345 | depends on NETFILTER_XTABLES |
| 346 | help |
Thomas Vögtle | 50b521a | 2006-03-22 13:53:48 -0800 | [diff] [blame] | 347 | This target replaced the old obsolete QUEUE target. |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 348 | |
| 349 | As opposed to QUEUE, it supports 65535 different queues, |
| 350 | not just one. |
| 351 | |
| 352 | To compile it as a module, choose M here. If unsure, say N. |
| 353 | |
Patrick McHardy | baf7b1e | 2006-11-29 02:35:38 +0100 | [diff] [blame] | 354 | config NETFILTER_XT_TARGET_NFLOG |
| 355 | tristate '"NFLOG" target support' |
| 356 | depends on NETFILTER_XTABLES |
| 357 | help |
| 358 | This option enables the NFLOG target, which allows to LOG |
| 359 | messages through the netfilter logging API, which can use |
| 360 | either the old LOG target, the old ULOG target or nfnetlink_log |
| 361 | as backend. |
| 362 | |
| 363 | To compile it as a module, choose M here. If unsure, say N. |
| 364 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 365 | config NETFILTER_XT_TARGET_NOTRACK |
| 366 | tristate '"NOTRACK" target support' |
| 367 | depends on NETFILTER_XTABLES |
| 368 | depends on IP_NF_RAW || IP6_NF_RAW |
| 369 | depends on IP_NF_CONNTRACK || NF_CONNTRACK |
| 370 | help |
| 371 | The NOTRACK target allows a select rule to specify |
| 372 | which packets *not* to enter the conntrack/NAT |
| 373 | subsystem with all the consequences (no ICMP error tracking, |
| 374 | no protocol helpers for the selected packets). |
| 375 | |
| 376 | If you want to compile it as a module, say M here and read |
| 377 | <file:Documentation/modules.txt>. If unsure, say `N'. |
| 378 | |
James Morris | 5e6874c | 2006-06-09 00:30:57 -0700 | [diff] [blame] | 379 | config NETFILTER_XT_TARGET_SECMARK |
| 380 | tristate '"SECMARK" target support' |
| 381 | depends on NETFILTER_XTABLES && NETWORK_SECMARK |
| 382 | help |
| 383 | The SECMARK target allows security marking of network |
| 384 | packets, for use with security subsystems. |
| 385 | |
| 386 | To compile it as a module, choose M here. If unsure, say N. |
| 387 | |
James Morris | 100468e9 | 2006-06-09 00:32:39 -0700 | [diff] [blame] | 388 | config NETFILTER_XT_TARGET_CONNSECMARK |
| 389 | tristate '"CONNSECMARK" target support' |
Patrick McHardy | c08de5d | 2006-10-12 14:08:41 -0700 | [diff] [blame] | 390 | depends on NETFILTER_XTABLES && \ |
| 391 | ((NF_CONNTRACK && NF_CONNTRACK_SECMARK) || \ |
| 392 | (IP_NF_CONNTRACK && IP_NF_CONNTRACK_SECMARK)) |
James Morris | 100468e9 | 2006-06-09 00:32:39 -0700 | [diff] [blame] | 393 | help |
| 394 | The CONNSECMARK target copies security markings from packets |
| 395 | to connections, and restores security markings from connections |
| 396 | to packets (if the packets are not already marked). This would |
| 397 | normally be used in conjunction with the SECMARK target. |
| 398 | |
| 399 | To compile it as a module, choose M here. If unsure, say N. |
| 400 | |
Patrick McHardy | cdd289a | 2007-02-07 15:09:46 -0800 | [diff] [blame] | 401 | config NETFILTER_XT_TARGET_TCPMSS |
| 402 | tristate '"TCPMSS" target support' |
| 403 | depends on NETFILTER_XTABLES && (IPV6 || IPV6=n) |
| 404 | ---help--- |
| 405 | This option adds a `TCPMSS' target, which allows you to alter the |
| 406 | MSS value of TCP SYN packets, to control the maximum size for that |
| 407 | connection (usually limiting it to your outgoing interface's MTU |
| 408 | minus 40). |
| 409 | |
| 410 | This is used to overcome criminally braindead ISPs or servers which |
| 411 | block ICMP Fragmentation Needed packets. The symptoms of this |
| 412 | problem are that everything works fine from your Linux |
| 413 | firewall/router, but machines behind it can never exchange large |
| 414 | packets: |
| 415 | 1) Web browsers connect, then hang with no data received. |
| 416 | 2) Small mail works fine, but large emails hang. |
| 417 | 3) ssh works fine, but scp hangs after initial handshaking. |
| 418 | |
| 419 | Workaround: activate this option and add a rule to your firewall |
| 420 | configuration like: |
| 421 | |
| 422 | iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN \ |
| 423 | -j TCPMSS --clamp-mss-to-pmtu |
| 424 | |
| 425 | To compile it as a module, choose M here. If unsure, say N. |
| 426 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 427 | config NETFILTER_XT_MATCH_COMMENT |
| 428 | tristate '"comment" match support' |
| 429 | depends on NETFILTER_XTABLES |
| 430 | help |
| 431 | This option adds a `comment' dummy-match, which allows you to put |
| 432 | comments in your iptables ruleset. |
| 433 | |
| 434 | If you want to compile it as a module, say M here and read |
| 435 | <file:Documentation/modules.txt>. If unsure, say `N'. |
| 436 | |
| 437 | config NETFILTER_XT_MATCH_CONNBYTES |
| 438 | tristate '"connbytes" per-connection counter match support' |
| 439 | depends on NETFILTER_XTABLES |
Patrick McHardy | a3c941b | 2007-02-12 11:15:02 -0800 | [diff] [blame] | 440 | depends on IP_NF_CONNTRACK || NF_CONNTRACK |
| 441 | select IP_NF_CT_ACCT if IP_NF_CONNTRACK |
| 442 | select NF_CT_ACCT if NF_CONNTRACK |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 443 | help |
| 444 | This option adds a `connbytes' match, which allows you to match the |
| 445 | number of bytes and/or packets for each direction within a connection. |
| 446 | |
| 447 | If you want to compile it as a module, say M here and read |
| 448 | <file:Documentation/modules.txt>. If unsure, say `N'. |
| 449 | |
| 450 | config NETFILTER_XT_MATCH_CONNMARK |
| 451 | tristate '"connmark" connection mark match support' |
| 452 | depends on NETFILTER_XTABLES |
Patrick McHardy | a3c941b | 2007-02-12 11:15:02 -0800 | [diff] [blame] | 453 | depends on IP_NF_CONNTRACK || NF_CONNTRACK |
| 454 | select IP_NF_CONNTRACK_MARK if IP_NF_CONNTRACK |
| 455 | select NF_CONNTRACK_MARK if NF_CONNTRACK |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 456 | help |
| 457 | This option adds a `connmark' match, which allows you to match the |
| 458 | connection mark value previously set for the session by `CONNMARK'. |
| 459 | |
| 460 | If you want to compile it as a module, say M here and read |
| 461 | <file:Documentation/modules.txt>. The module will be called |
| 462 | ipt_connmark.o. If unsure, say `N'. |
| 463 | |
| 464 | config NETFILTER_XT_MATCH_CONNTRACK |
| 465 | tristate '"conntrack" connection tracking match support' |
| 466 | depends on NETFILTER_XTABLES |
| 467 | depends on IP_NF_CONNTRACK || NF_CONNTRACK |
| 468 | help |
| 469 | This is a general conntrack match module, a superset of the state match. |
| 470 | |
| 471 | It allows matching on additional conntrack information, which is |
| 472 | useful in complex configurations, such as NAT gateways with multiple |
| 473 | internet links or tunnels. |
| 474 | |
| 475 | To compile it as a module, choose M here. If unsure, say N. |
| 476 | |
| 477 | config NETFILTER_XT_MATCH_DCCP |
| 478 | tristate '"DCCP" protocol match support' |
| 479 | depends on NETFILTER_XTABLES |
| 480 | help |
| 481 | With this option enabled, you will be able to use the iptables |
| 482 | `dccp' match in order to match on DCCP source/destination ports |
| 483 | and DCCP flags. |
| 484 | |
| 485 | If you want to compile it as a module, say M here and read |
| 486 | <file:Documentation/modules.txt>. If unsure, say `N'. |
| 487 | |
Yasuyuki Kozakai | 9ba1627 | 2006-08-22 00:29:37 -0700 | [diff] [blame] | 488 | config NETFILTER_XT_MATCH_DSCP |
| 489 | tristate '"DSCP" match support' |
| 490 | depends on NETFILTER_XTABLES |
| 491 | help |
| 492 | This option adds a `DSCP' match, which allows you to match against |
| 493 | the IPv4/IPv6 header DSCP field (differentiated services codepoint). |
| 494 | |
| 495 | The DSCP field can have any value between 0x0 and 0x3f inclusive. |
| 496 | |
| 497 | To compile it as a module, choose M here. If unsure, say N. |
| 498 | |
Yasuyuki Kozakai | dc5ab2f | 2006-04-01 02:22:30 -0800 | [diff] [blame] | 499 | config NETFILTER_XT_MATCH_ESP |
| 500 | tristate '"ESP" match support' |
| 501 | depends on NETFILTER_XTABLES |
| 502 | help |
| 503 | This match extension allows you to match a range of SPIs |
| 504 | inside ESP header of IPSec packets. |
| 505 | |
| 506 | To compile it as a module, choose M here. If unsure, say N. |
| 507 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 508 | config NETFILTER_XT_MATCH_HELPER |
| 509 | tristate '"helper" match support' |
| 510 | depends on NETFILTER_XTABLES |
| 511 | depends on IP_NF_CONNTRACK || NF_CONNTRACK |
| 512 | help |
| 513 | Helper matching allows you to match packets in dynamic connections |
| 514 | tracked by a conntrack-helper, ie. ip_conntrack_ftp |
| 515 | |
| 516 | To compile it as a module, choose M here. If unsure, say Y. |
| 517 | |
| 518 | config NETFILTER_XT_MATCH_LENGTH |
| 519 | tristate '"length" match support' |
| 520 | depends on NETFILTER_XTABLES |
| 521 | help |
| 522 | This option allows you to match the length of a packet against a |
| 523 | specific value or range of values. |
| 524 | |
| 525 | To compile it as a module, choose M here. If unsure, say N. |
| 526 | |
| 527 | config NETFILTER_XT_MATCH_LIMIT |
| 528 | tristate '"limit" match support' |
| 529 | depends on NETFILTER_XTABLES |
| 530 | help |
| 531 | limit matching allows you to control the rate at which a rule can be |
| 532 | matched: mainly useful in combination with the LOG target ("LOG |
| 533 | target support", below) and to avoid some Denial of Service attacks. |
| 534 | |
| 535 | To compile it as a module, choose M here. If unsure, say N. |
| 536 | |
| 537 | config NETFILTER_XT_MATCH_MAC |
| 538 | tristate '"mac" address match support' |
| 539 | depends on NETFILTER_XTABLES |
| 540 | help |
| 541 | MAC matching allows you to match packets based on the source |
| 542 | Ethernet address of the packet. |
| 543 | |
| 544 | To compile it as a module, choose M here. If unsure, say N. |
| 545 | |
| 546 | config NETFILTER_XT_MATCH_MARK |
| 547 | tristate '"mark" match support' |
| 548 | depends on NETFILTER_XTABLES |
| 549 | help |
| 550 | Netfilter mark matching allows you to match packets based on the |
| 551 | `nfmark' value in the packet. This can be set by the MARK target |
| 552 | (see below). |
| 553 | |
| 554 | To compile it as a module, choose M here. If unsure, say N. |
| 555 | |
Patrick McHardy | c4b8851 | 2006-03-20 18:03:40 -0800 | [diff] [blame] | 556 | config NETFILTER_XT_MATCH_POLICY |
| 557 | tristate 'IPsec "policy" match support' |
| 558 | depends on NETFILTER_XTABLES && XFRM |
| 559 | help |
| 560 | Policy matching allows you to match packets based on the |
| 561 | IPsec policy that was used during decapsulation/will |
| 562 | be used during encapsulation. |
| 563 | |
| 564 | To compile it as a module, choose M here. If unsure, say N. |
| 565 | |
Yasuyuki Kozakai | a89ecb6 | 2006-04-01 02:22:54 -0800 | [diff] [blame] | 566 | config NETFILTER_XT_MATCH_MULTIPORT |
| 567 | tristate "Multiple port match support" |
| 568 | depends on NETFILTER_XTABLES |
| 569 | help |
| 570 | Multiport matching allows you to match TCP or UDP packets based on |
| 571 | a series of source or destination ports: normally a rule can only |
| 572 | match a single range of ports. |
| 573 | |
| 574 | To compile it as a module, choose M here. If unsure, say N. |
| 575 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 576 | config NETFILTER_XT_MATCH_PHYSDEV |
| 577 | tristate '"physdev" match support' |
Patrick McHardy | f1da706 | 2006-10-02 16:10:47 -0700 | [diff] [blame] | 578 | depends on NETFILTER_XTABLES && BRIDGE && BRIDGE_NETFILTER |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 579 | help |
| 580 | Physdev packet matching matches against the physical bridge ports |
| 581 | the IP packet arrived on or will leave by. |
| 582 | |
| 583 | To compile it as a module, choose M here. If unsure, say N. |
| 584 | |
| 585 | config NETFILTER_XT_MATCH_PKTTYPE |
| 586 | tristate '"pkttype" packet type match support' |
| 587 | depends on NETFILTER_XTABLES |
| 588 | help |
| 589 | Packet type matching allows you to match a packet by |
| 590 | its "class", eg. BROADCAST, MULTICAST, ... |
| 591 | |
| 592 | Typical usage: |
| 593 | iptables -A INPUT -m pkttype --pkt-type broadcast -j LOG |
| 594 | |
| 595 | To compile it as a module, choose M here. If unsure, say N. |
| 596 | |
Patrick McHardy | 62b7743 | 2006-05-29 18:20:32 -0700 | [diff] [blame] | 597 | config NETFILTER_XT_MATCH_QUOTA |
| 598 | tristate '"quota" match support' |
| 599 | depends on NETFILTER_XTABLES |
| 600 | help |
| 601 | This option adds a `quota' match, which allows to match on a |
| 602 | byte counter. |
| 603 | |
| 604 | If you want to compile it as a module, say M here and read |
| 605 | <file:Documentation/modules.txt>. If unsure, say `N'. |
| 606 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 607 | config NETFILTER_XT_MATCH_REALM |
| 608 | tristate '"realm" match support' |
| 609 | depends on NETFILTER_XTABLES |
| 610 | select NET_CLS_ROUTE |
| 611 | help |
| 612 | This option adds a `realm' match, which allows you to use the realm |
| 613 | key from the routing subsystem inside iptables. |
| 614 | |
| 615 | This match pretty much resembles the CONFIG_NET_CLS_ROUTE4 option |
| 616 | in tc world. |
| 617 | |
| 618 | If you want to compile it as a module, say M here and read |
| 619 | <file:Documentation/modules.txt>. If unsure, say `N'. |
| 620 | |
| 621 | config NETFILTER_XT_MATCH_SCTP |
Patrick McHardy | d5af981e | 2006-07-24 22:55:29 -0700 | [diff] [blame] | 622 | tristate '"sctp" protocol match support (EXPERIMENTAL)' |
| 623 | depends on NETFILTER_XTABLES && EXPERIMENTAL |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 624 | help |
| 625 | With this option enabled, you will be able to use the |
| 626 | `sctp' match in order to match on SCTP source/destination ports |
| 627 | and SCTP chunk types. |
| 628 | |
| 629 | If you want to compile it as a module, say M here and read |
| 630 | <file:Documentation/modules.txt>. If unsure, say `N'. |
| 631 | |
| 632 | config NETFILTER_XT_MATCH_STATE |
| 633 | tristate '"state" match support' |
| 634 | depends on NETFILTER_XTABLES |
| 635 | depends on IP_NF_CONNTRACK || NF_CONNTRACK |
| 636 | help |
| 637 | Connection state matching allows you to match packets based on their |
| 638 | relationship to a tracked connection (ie. previous packets). This |
| 639 | is a powerful tool for packet classification. |
| 640 | |
| 641 | To compile it as a module, choose M here. If unsure, say N. |
| 642 | |
Patrick McHardy | f338980 | 2006-05-29 18:21:00 -0700 | [diff] [blame] | 643 | config NETFILTER_XT_MATCH_STATISTIC |
| 644 | tristate '"statistic" match support' |
| 645 | depends on NETFILTER_XTABLES |
| 646 | help |
Patrick McHardy | 68c1692 | 2006-06-27 03:02:14 -0700 | [diff] [blame] | 647 | This option adds a `statistic' match, which allows you to match |
| 648 | on packets periodically or randomly with a given percentage. |
| 649 | |
| 650 | 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] | 651 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 652 | config NETFILTER_XT_MATCH_STRING |
| 653 | tristate '"string" match support' |
| 654 | depends on NETFILTER_XTABLES |
| 655 | select TEXTSEARCH |
| 656 | select TEXTSEARCH_KMP |
| 657 | select TEXTSEARCH_BM |
| 658 | select TEXTSEARCH_FSM |
| 659 | help |
| 660 | This option adds a `string' match, which allows you to look for |
| 661 | pattern matchings in packets. |
| 662 | |
| 663 | To compile it as a module, choose M here. If unsure, say N. |
| 664 | |
| 665 | config NETFILTER_XT_MATCH_TCPMSS |
| 666 | tristate '"tcpmss" match support' |
| 667 | depends on NETFILTER_XTABLES |
| 668 | help |
| 669 | This option adds a `tcpmss' match, which allows you to examine the |
| 670 | MSS value of TCP SYN packets, which control the maximum packet size |
| 671 | for that connection. |
| 672 | |
| 673 | To compile it as a module, choose M here. If unsure, say N. |
| 674 | |
Patrick McHardy | 39b46fc | 2006-11-29 02:35:36 +0100 | [diff] [blame] | 675 | config NETFILTER_XT_MATCH_HASHLIMIT |
| 676 | tristate '"hashlimit" match support' |
Patrick McHardy | 2e55302 | 2007-01-30 21:36:09 -0800 | [diff] [blame] | 677 | depends on NETFILTER_XTABLES && (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n) |
Patrick McHardy | 39b46fc | 2006-11-29 02:35:36 +0100 | [diff] [blame] | 678 | help |
| 679 | This option adds a `hashlimit' match. |
| 680 | |
| 681 | As opposed to `limit', this match dynamically creates a hash table |
| 682 | of limit buckets, based on your selection of source/destination |
| 683 | addresses and/or ports. |
| 684 | |
| 685 | It enables you to express policies like `10kpps for any given |
| 686 | destination address' or `500pps from any given source address' |
| 687 | with a single rule. |
| 688 | |
Harald Welte | a6c1cd57 | 2006-02-13 15:42:48 -0800 | [diff] [blame] | 689 | endmenu |
| 690 | |