net/ipv6/netfilter/Kconfig

   1 #
   2 # IP netfilter configuration
   3 #
   4
   5 menu "IPv6: Netfilter Configuration"
   6         depends on INET && IPV6 && NETFILTER
   7
   8 config NF_DEFRAG_IPV6
   9         tristate
  10         default n
  11
  12 config NF_CONNTRACK_IPV6
  13         tristate "IPv6 connection tracking support"
  14         depends on INET && IPV6 && NF_CONNTRACK
  15         default m if NETFILTER_ADVANCED=n
  16         select NF_DEFRAG_IPV6
  17         ---help---
  18           Connection tracking keeps a record of what packets have passed
  19           through your machine, in order to figure out how they are related
  20           into connections.
  21
  22           This is IPv6 support on Layer 3 independent connection tracking.
  23           Layer 3 independent connection tracking is experimental scheme
  24           which generalize ip_conntrack to support other layer 3 protocols.
  25
  26           To compile it as a module, choose M here.  If unsure, say N.
  27
  28 if NF_TABLES
  29
  30 config NF_TABLES_IPV6
  31         tristate "IPv6 nf_tables support"
  32         help
  33           This option enables the IPv6 support for nf_tables.
  34
  35 if NF_TABLES_IPV6
  36
  37 config NFT_CHAIN_ROUTE_IPV6
  38         tristate "IPv6 nf_tables route chain support"
  39         help
  40           This option enables the "route" chain for IPv6 in nf_tables. This
  41           chain type is used to force packet re-routing after mangling header
  42           fields such as the source, destination, flowlabel, hop-limit and
  43           the packet mark.
  44
  45 config NFT_REJECT_IPV6
  46         select NF_REJECT_IPV6
  47         default NFT_REJECT
  48         tristate
  49
  50 config NFT_DUP_IPV6
  51         tristate "IPv6 nf_tables packet duplication support"
  52         depends on !NF_CONNTRACK || NF_CONNTRACK
  53         select NF_DUP_IPV6
  54         help
  55           This module enables IPv6 packet duplication support for nf_tables.
  56
  57 endif # NF_TABLES_IPV6
  58 endif # NF_TABLES
  59
  60 config NF_DUP_IPV6
  61         tristate "Netfilter IPv6 packet duplication to alternate destination"
  62         depends on !NF_CONNTRACK || NF_CONNTRACK
  63         help
  64           This option enables the nf_dup_ipv6 core, which duplicates an IPv6
  65           packet to be rerouted to another destination.
  66
  67 config NF_REJECT_IPV6
  68         tristate "IPv6 packet rejection"
  69         default m if NETFILTER_ADVANCED=n
  70
  71 config NF_LOG_IPV6
  72         tristate "IPv6 packet logging"
  73         default m if NETFILTER_ADVANCED=n
  74         select NF_LOG_COMMON
  75
  76 config NF_NAT_IPV6
  77         tristate "IPv6 NAT"
  78         depends on NF_CONNTRACK_IPV6
  79         depends on NETFILTER_ADVANCED
  80         select NF_NAT
  81         help
  82           The IPv6 NAT option allows masquerading, port forwarding and other
  83           forms of full Network Address Port Translation. This can be
  84           controlled by iptables or nft.
  85
  86 if NF_NAT_IPV6
  87
  88 config NFT_CHAIN_NAT_IPV6
  89         depends on NF_TABLES_IPV6
  90         tristate "IPv6 nf_tables nat chain support"
  91         help
  92           This option enables the "nat" chain for IPv6 in nf_tables. This
  93           chain type is used to perform Network Address Translation (NAT)
  94           packet transformations such as the source, destination address and
  95           source and destination ports.
  96
  97 config NF_NAT_MASQUERADE_IPV6
  98         tristate "IPv6 masquerade support"
  99         help
 100           This is the kernel functionality to provide NAT in the masquerade
 101           flavour (automatic source address selection) for IPv6.
 102
 103 config NFT_MASQ_IPV6
 104         tristate "IPv6 masquerade support for nf_tables"
 105         depends on NF_TABLES_IPV6
 106         depends on NFT_MASQ
 107         select NF_NAT_MASQUERADE_IPV6
 108         help
 109           This is the expression that provides IPv4 masquerading support for
 110           nf_tables.
 111
 112 config NFT_REDIR_IPV6
 113         tristate "IPv6 redirect support for nf_tables"
 114         depends on NF_TABLES_IPV6
 115         depends on NFT_REDIR
 116         select NF_NAT_REDIRECT
 117         help
 118           This is the expression that provides IPv4 redirect support for
 119           nf_tables.
 120
 121 endif # NF_NAT_IPV6
 122
 123 config IP6_NF_IPTABLES
 124         tristate "IP6 tables support (required for filtering)"
 125         depends on INET && IPV6
 126         select NETFILTER_XTABLES
 127         default m if NETFILTER_ADVANCED=n
 128         help
 129           ip6tables is a general, extensible packet identification framework.
 130           Currently only the packet filtering and packet mangling subsystem
 131           for IPv6 use this, but connection tracking is going to follow.
 132           Say 'Y' or 'M' here if you want to use either of those.
 133
 134           To compile it as a module, choose M here.  If unsure, say N.
 135
 136 if IP6_NF_IPTABLES
 137
 138 # The simple matches.
 139 config IP6_NF_MATCH_AH
 140         tristate '"ah" match support'
 141         depends on NETFILTER_ADVANCED
 142         help
 143           This module allows one to match AH packets.
 144
 145           To compile it as a module, choose M here.  If unsure, say N.
 146
 147 config IP6_NF_MATCH_EUI64
 148         tristate '"eui64" address check'
 149         depends on NETFILTER_ADVANCED
 150         help
 151           This module performs checking on the IPv6 source address
 152           Compares the last 64 bits with the EUI64 (delivered
 153           from the MAC address) address
 154
 155           To compile it as a module, choose M here.  If unsure, say N.
 156
 157 config IP6_NF_MATCH_FRAG
 158         tristate '"frag" Fragmentation header match support'
 159         depends on NETFILTER_ADVANCED
 160         help
 161           frag matching allows you to match packets based on the fragmentation
 162           header of the packet.
 163
 164           To compile it as a module, choose M here.  If unsure, say N.
 165
 166 config IP6_NF_MATCH_OPTS
 167         tristate '"hbh" hop-by-hop and "dst" opts header match support'
 168         depends on NETFILTER_ADVANCED
 169         help
 170           This allows one to match packets based on the hop-by-hop
 171           and destination options headers of a packet.
 172
 173           To compile it as a module, choose M here.  If unsure, say N.
 174
 175 config IP6_NF_MATCH_HL
 176         tristate '"hl" hoplimit match support'
 177         depends on NETFILTER_ADVANCED
 178         select NETFILTER_XT_MATCH_HL
 179         ---help---
 180         This is a backwards-compat option for the user's convenience
 181         (e.g. when running oldconfig). It selects
 182         CONFIG_NETFILTER_XT_MATCH_HL.
 183
 184 config IP6_NF_MATCH_IPV6HEADER
 185         tristate '"ipv6header" IPv6 Extension Headers Match'
 186         default m if NETFILTER_ADVANCED=n
 187         help
 188           This module allows one to match packets based upon
 189           the ipv6 extension headers.
 190
 191           To compile it as a module, choose M here.  If unsure, say N.
 192
 193 config IP6_NF_MATCH_MH
 194         tristate '"mh" match support'
 195         depends on NETFILTER_ADVANCED
 196         help
 197           This module allows one to match MH packets.
 198
 199           To compile it as a module, choose M here.  If unsure, say N.
 200
 201 config IP6_NF_MATCH_RPFILTER
 202         tristate '"rpfilter" reverse path filter match support'
 203         depends on NETFILTER_ADVANCED
 204         depends on IP6_NF_MANGLE || IP6_NF_RAW
 205         ---help---
 206           This option allows you to match packets whose replies would
 207           go out via the interface the packet came in.
 208
 209           To compile it as a module, choose M here.  If unsure, say N.
 210           The module will be called ip6t_rpfilter.
 211
 212 config IP6_NF_MATCH_RT
 213         tristate '"rt" Routing header match support'
 214         depends on NETFILTER_ADVANCED
 215         help
 216           rt matching allows you to match packets based on the routing
 217           header of the packet.
 218
 219           To compile it as a module, choose M here.  If unsure, say N.
 220
 221 # The targets
 222 config IP6_NF_TARGET_HL
 223         tristate '"HL" hoplimit target support'
 224         depends on NETFILTER_ADVANCED && IP6_NF_MANGLE
 225         select NETFILTER_XT_TARGET_HL
 226         ---help---
 227         This is a backwards-compatible option for the user's convenience
 228         (e.g. when running oldconfig). It selects
 229         CONFIG_NETFILTER_XT_TARGET_HL.
 230
 231 config IP6_NF_FILTER
 232         tristate "Packet filtering"
 233         default m if NETFILTER_ADVANCED=n
 234         help
 235           Packet filtering defines a table `filter', which has a series of
 236           rules for simple packet filtering at local input, forwarding and
 237           local output.  See the man page for iptables(8).
 238
 239           To compile it as a module, choose M here.  If unsure, say N.
 240
 241 config IP6_NF_TARGET_REJECT
 242         tristate "REJECT target support"
 243         depends on IP6_NF_FILTER
 244         select NF_REJECT_IPV6
 245         default m if NETFILTER_ADVANCED=n
 246         help
 247           The REJECT target allows a filtering rule to specify that an ICMPv6
 248           error should be issued in response to an incoming packet, rather
 249           than silently being dropped.
 250
 251           To compile it as a module, choose M here.  If unsure, say N.
 252
 253 config IP6_NF_TARGET_SYNPROXY
 254         tristate "SYNPROXY target support"
 255         depends on NF_CONNTRACK && NETFILTER_ADVANCED
 256         select NETFILTER_SYNPROXY
 257         select SYN_COOKIES
 258         help
 259           The SYNPROXY target allows you to intercept TCP connections and
 260           establish them using syncookies before they are passed on to the
 261           server. This allows to avoid conntrack and server resource usage
 262           during SYN-flood attacks.
 263
 264           To compile it as a module, choose M here. If unsure, say N.
 265
 266 config IP6_NF_MANGLE
 267         tristate "Packet mangling"
 268         default m if NETFILTER_ADVANCED=n
 269         help
 270           This option adds a `mangle' table to iptables: see the man page for
 271           iptables(8).  This table is used for various packet alterations
 272           which can effect how the packet is routed.
 273
 274           To compile it as a module, choose M here.  If unsure, say N.
 275
 276 config IP6_NF_RAW
 277         tristate  'raw table support (required for TRACE)'
 278         help
 279           This option adds a `raw' table to ip6tables. This table is the very
 280           first in the netfilter framework and hooks in at the PREROUTING
 281           and OUTPUT chains.
 282
 283           If you want to compile it as a module, say M here and read
 284           <file:Documentation/kbuild/modules.txt>.  If unsure, say `N'.
 285
 286 # security table for MAC policy
 287 config IP6_NF_SECURITY
 288        tristate "Security table"
 289        depends on SECURITY
 290        depends on NETFILTER_ADVANCED
 291        help
 292          This option adds a `security' table to iptables, for use
 293          with Mandatory Access Control (MAC) policy.
 294
 295          If unsure, say N.
 296
 297 config IP6_NF_NAT
 298         tristate "ip6tables NAT support"
 299         depends on NF_CONNTRACK_IPV6
 300         depends on NETFILTER_ADVANCED
 301         select NF_NAT
 302         select NF_NAT_IPV6
 303         select NETFILTER_XT_NAT
 304         help
 305           This enables the `nat' table in ip6tables. This allows masquerading,
 306           port forwarding and other forms of full Network Address Port
 307           Translation.
 308
 309           To compile it as a module, choose M here.  If unsure, say N.
 310
 311 if IP6_NF_NAT
 312
 313 config IP6_NF_TARGET_MASQUERADE
 314         tristate "MASQUERADE target support"
 315         select NF_NAT_MASQUERADE_IPV6
 316         help
 317           Masquerading is a special case of NAT: all outgoing connections are
 318           changed to seem to come from a particular interface's address, and
 319           if the interface goes down, those connections are lost.  This is
 320           only useful for dialup accounts with dynamic IP address (ie. your IP
 321           address will be different on next dialup).
 322
 323           To compile it as a module, choose M here.  If unsure, say N.
 324
 325 config IP6_NF_TARGET_NPT
 326         tristate "NPT (Network Prefix translation) target support"
 327         help
 328           This option adds the `SNPT' and `DNPT' target, which perform
 329           stateless IPv6-to-IPv6 Network Prefix Translation per RFC 6296.
 330
 331           To compile it as a module, choose M here.  If unsure, say N.
 332
 333 endif # IP6_NF_NAT
 334
 335 endif # IP6_NF_IPTABLES
 336
 337 endmenu
 338