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2009-02-18netfilter: Combine ipt_ttl and ip6t_hl sourceJan Engelhardt1-1/+0
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-02-18netfilter: Combine ipt_TTL and ip6t_HL sourceJan Engelhardt1-1/+0
Suggested by: James King <t.james.king@gmail.com> Similarly to commit c9fd49680954714473d6cbd2546d6ff120f96840, merge TTL and HL. Since HL does not depend on any IPv6-specific function, no new module dependencies would arise. With slight adjustments to the Kconfig help text. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: split netfilter IPv4 defragmentation into a separate moduleKOVACS Krisztian1-0/+3
Netfilter connection tracking requires all IPv4 packets to be defragmented. Both the socket match and the TPROXY target depend on this functionality, so this patch separates the Netfilter IPv4 defrag hooks into a separate module. Signed-off-by: KOVACS Krisztian <hidden@sch.bme.hu> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-10-08netfilter: rename ipt_recent to xt_recentJan Engelhardt1-1/+0
Like with other modules (such as ipt_state), ipt_recent.h is changed to forward definitions to (IOW include) xt_recent.h, and xt_recent.c is changed to use the new constant names. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-06-09netfilter: ip_tables: add iptables security table for mandatory access control rulesJames Morris1-0/+1
The following patch implements a new "security" table for iptables, so that MAC (SELinux etc.) networking rules can be managed separately to standard DAC rules. This is to help with distro integration of the new secmark-based network controls, per various previous discussions. The need for a separate table arises from the fact that existing tools and usage of iptables will likely clash with centralized MAC policy management. The SECMARK and CONNSECMARK targets will still be valid in the mangle table to prevent breakage of existing users. Signed-off-by: James Morris <jmorris@namei.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-14[NETFILTER]: nf_nat: add SCTP protocol supportPatrick McHardy1-0/+1
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_nat: add DCCP protocol supportPatrick McHardy1-0/+1
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_nat: add UDP-Lite supportPatrick McHardy1-0/+1
Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-04-14[NETFILTER]: nf_nat: add helpers for common NAT protocol operationsPatrick McHardy1-1/+1
Add generic ->in_range and ->unique_tuple ops to avoid duplicating them again and again for future NAT modules and save a few bytes of text: net/ipv4/netfilter/nf_nat_proto_tcp.c: tcp_in_range | -62 (removed) tcp_unique_tuple | -259 # 271 -> 12, # inlines: 1 -> 0, size inlines: 7 -> 0 2 functions changed, 321 bytes removed net/ipv4/netfilter/nf_nat_proto_udp.c: udp_in_range | -62 (removed) udp_unique_tuple | -259 # 271 -> 12, # inlines: 1 -> 0, size inlines: 7 -> 0 2 functions changed, 321 bytes removed net/ipv4/netfilter/nf_nat_proto_gre.c: gre_in_range | -62 (removed) 1 function changed, 62 bytes removed vmlinux: 5 functions changed, 704 bytes removed Signed-off-by: Patrick McHardy <kaber@trash.net>
2008-01-28[NETFILTER]: Rename ipt_iprange to xt_iprangeJan Engelhardt1-1/+0
This patch moves ipt_iprange to xt_iprange, in preparation for adding IPv6 support to xt_iprange. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: ip_tables: remove obsolete SAME targetPatrick McHardy1-1/+0
Remove the ipt_SAME target as scheduled in feature-removal-schedule. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Merge ipt_TOS into xt_DSCPJan Engelhardt1-1/+0
Merge ipt_TOS into xt_DSCP. Merge ipt_TOS (tos v0 target) into xt_DSCP. They both modify the same field in the IPv4 header, so it seems reasonable to keep them in one piece. This is part two of the implicit 4-patch series to move tos to xtables and extend it by IPv6. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: Merge ipt_tos into xt_dscpJan Engelhardt1-1/+0
Merge ipt_tos into xt_dscp. Merge ipt_tos (tos v0 match) into xt_dscp. They both match on the same field in the IPv4 header, so it seems reasonable to keep them in one piece. This is part one of the implicit 4-patch series to move tos to xtables and extend it by IPv6. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETFILTER]: merge ipt_owner/ip6t_owner in xt_ownerJan Engelhardt1-1/+0
xt_owner merges ipt_owner and ip6t_owner, and adds a flag to match on socket (non-)existence. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-07[NETFILTER]: Clean up MakefileJan Engelhardt1-10/+10
Sort matches and targets in the NF makefiles. Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NETFILTER]: Remove IPv4 only connection tracking/NATPatrick McHardy1-44/+1
Remove the obsolete IPv4 only connection tracking/NAT as scheduled in feature-removal-schedule. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-02-08[NETFILTER]: add IPv6-capable TCPMSS targetPatrick McHardy1-1/+0
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-01-26[NETFILTER]: nf_nat: fix ICMP translation with statically linked conntrackPatrick McHardy1-10/+10
When nf_nat/nf_conntrack_ipv4 are linked statically, nf_nat is initialized before nf_conntrack_ipv4, which makes the nf_ct_l3proto_find_get(AF_INET) call during nf_nat initialization return the generic l3proto instead of the AF_INET specific one. This breaks ICMP error translation since the generic protocol always initializes the IPs in the tuple to 0. Change the linking order and put nf_conntrack_ipv4 first. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: nf_nat: add SNMP NAT helper portPatrick McHardy1-0/+1
Add nf_conntrack port of the SNMP NAT helper. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: nf_conntrack/nf_nat: add TFTP helper portPatrick McHardy1-0/+1
Add IPv4 and IPv6 capable nf_conntrack port of the TFTP conntrack/NAT helper. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: nf_conntrack/nf_nat: add SIP helper portPatrick McHardy1-0/+1
Add IPv4 and IPv6 capable nf_conntrack port of the SIP conntrack/NAT helper. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: nf_conntrack/nf_nat: add PPTP helper portPatrick McHardy1-0/+4
Add nf_conntrack port of the PPtP conntrack/NAT helper. Since there seems to be no IPv6-capable PPtP implementation the helper only support IPv4. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: nf_conntrack/nf_nat: add IRC helper portPatrick McHardy1-0/+1
Add nf_conntrack port of the IRC conntrack/NAT helper. Since DCC doesn't support IPv6 yet, the helper is still IPv4 only. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: nf_conntrack/nf_nat: add H.323 helper portPatrick McHardy1-1/+2
Add IPv4 and IPv6 capable nf_conntrack port of the H.323 conntrack/NAT helper. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: nf_conntrack/nf_nat: add amanda helper portPatrick McHardy1-0/+1
Add IPv4 and IPv6 capable nf_conntrack port of the Amanda conntrack/NAT helper. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: nf_nat: add FTP NAT helper portJozsef Kadlecsik1-1/+4
Add FTP NAT helper. Split out from Jozsef's big nf_nat patch with a few small fixes by myself. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: Add NAT support for nf_conntrackJozsef Kadlecsik1-0/+7
Add NAT support for nf_conntrack. Joint work of Jozsef Kadlecsik, Yasuyuki Kozakai, Martin Josefsson and myself. Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-02[NETFILTER]: x_tables: add port of hashlimit match for IPv4 and IPv6Patrick McHardy1-1/+0
Signed-off-by: Patrick McHardy <kaber@trash.net>
2006-12-02[NETFILTER]: nf_conntrack: /proc compatibility with old connection trackingPatrick McHardy1-0/+5
This patch adds /proc/net/ip_conntrack, /proc/net/ip_conntrack_expect and /proc/net/stat/ip_conntrack files to keep old programs using them working. The /proc/net/ip_conntrack and /proc/net/ip_conntrack_expect files show only IPv4 entries, the /proc/net/stat/ip_conntrack shows global statistics. Signed-off-by: Patrick McHardy <kaber@trash.net>
2006-09-22[NETFILTER]: x_tables: replace IPv4 DSCP target by address family independent versionYasuyuki Kozakai1-1/+0
This replaces IPv4 DSCP target by address family independent version. This also - utilizes dsfield.h to get/mangle DS field in IPv4/IPv6 header - fixes Kconfig help text. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-22[NETFILTER]: x_tables: replace IPv4 dscp match by address family independent versionYasuyuki Kozakai1-1/+0
This replaces IPv4 dscp match by address family independent version. This also - utilizes dsfield.h to get the DS field in IPv4/IPv6 header, and - checks for the DSCP value from user space. - fixes Kconfig help text. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-17[NETFILTER]: Add SIP connection tracking helperPatrick McHardy1-0/+2
Add SIP connection tracking helper. Originally written by Christian Hentschel <chentschel@arnet.com.ar>, some cleanup, minor fixes and bidirectional SIP support added by myself. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-01[NETFILTER]: x_tables: unify IPv4/IPv6 multiport matchYasuyuki Kozakai1-1/+0
This unifies ipt_multiport and ip6t_multiport to xt_multiport. As a result, this addes support for inversion and port range match to IPv6 packets. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-04-01[NETFILTER]: x_tables: unify IPv4/IPv6 esp matchYasuyuki Kozakai1-1/+1
This unifies ipt_esp and ip6t_esp to xt_esp. Please note that now a user program needs to specify IPPROTO_ESP as protocol to use esp match with IPv6. This means that ip6tables requires '-p esp' like iptables. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[NETFILTER]: Add H.323 conntrack/NAT helperJing Min Zhao1-0/+5
Signed-off-by: Jing Min Zhao <zhaojignmin@hotmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-03-20[NETFILTER]: x_tables: replace IPv4/IPv6 policy match by address family independant versionPatrick McHardy1-1/+0
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-17[NETFILTER] Makefile cleanupYasuyuki Kozakai1-1/+0
These are replaced with x_tables matches and no longer exist. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-12[NETFILTER] x_tables: Abstraction layer for {ip,ip6,arp}_tablesHarald Welte1-21/+0
This monster-patch tries to do the best job for unifying the data structures and backend interfaces for the three evil clones ip_tables, ip6_tables and arp_tables. In an ideal world we would never have allowed this kind of copy+paste programming... but well, our world isn't (yet?) ideal. o introduce a new x_tables module o {ip,arp,ip6}_tables depend on this x_tables module o registration functions for tables, matches and targets are only wrappers around x_tables provided functions o all matches/targets that are used from ip_tables and ip6_tables are now implemented as xt_FOOBAR.c files and provide module aliases to ipt_FOOBAR and ip6t_FOOBAR o header files for xt_matches are in include/linux/netfilter/, include/linux/netfilter_{ipv4,ipv6} contains compatibility wrappers around the xt_FOOBAR.h headers Based on this patchset we're going to further unify the code, gradually getting rid of all the layer 3 specific assumptions. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-07[NETFILTER]: Add ipt_policy/ip6t_policy matchesPatrick McHardy1-0/+1
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-19[NETFILTER]: Fix NAT init orderPatrick McHardy1-1/+2
As noticed by Phil Oester, the GRE NAT protocol helper is initialized before the NAT core, which makes registration fail. Change the linking order to make NAT be initialized first. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-11-09[NETFILTER]: Add nf_conntrack subsystem.Yasuyuki Kozakai1-0/+6
The existing connection tracking subsystem in netfilter can only handle ipv4. There were basically two choices present to add connection tracking support for ipv6. We could either duplicate all of the ipv4 connection tracking code into an ipv6 counterpart, or (the choice taken by these patches) we could design a generic layer that could handle both ipv4 and ipv6 and thus requiring only one sub-protocol (TCP, UDP, etc.) connection tracking helper module to be written. In fact nf_conntrack is capable of working with any layer 3 protocol. The existing ipv4 specific conntrack code could also not deal with the pecularities of doing connection tracking on ipv6, which is also cured here. For example, these issues include: 1) ICMPv6 handling, which is used for neighbour discovery in ipv6 thus some messages such as these should not participate in connection tracking since effectively they are like ARP messages 2) fragmentation must be handled differently in ipv6, because the simplistic "defrag, connection track and NAT, refrag" (which the existing ipv4 connection tracking does) approach simply isn't feasible in ipv6 3) ipv6 extension header parsing must occur at the correct spots before and after connection tracking decisions, and there were no provisions for this in the existing connection tracking design 4) ipv6 has no need for stateful NAT The ipv4 specific conntrack layer is kept around, until all of the ipv4 specific conntrack helpers are ported over to nf_conntrack and it is feature complete. Once that occurs, the old conntrack stuff will get placed into the feature-removal-schedule and we will fully kill it off 6 months later. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
2005-09-26[NETFILTER]: Fix invalid module autoloading by splitting iptable_natHarald Welte1-2/+3
When you've enabled conntrack and NAT as a module (standard case in all distributions), and you've also enabled the new conntrack netlink interface, loading ip_conntrack_netlink.ko will auto-load iptable_nat.ko. This causes a huge performance penalty, since for every packet you iterate the nat code, even if you don't want it. This patch splits iptable_nat.ko into the NAT core (ip_nat.ko) and the iptables frontend (iptable_nat.ko). Threfore, ip_conntrack_netlink.ko will only pull ip_nat.ko, but not the frontend. ip_nat.ko will "only" allocate some resources, but not affect runtime performance. This separation is also a nice step in anticipation of new packet filters (nf-hipac, ipset, pkttables) being able to use the NAT core. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-24[NETFILTER]: Fix ip[6]t_NFQUEUE Kconfig dependencyHarald Welte1-1/+1
We have to introduce a separate Kconfig menu entry for the NFQUEUE targets. They cannot "just" depend on nfnetlink_queue, since nfnetlink_queue could be linked into the kernel, whereas iptables can be a module. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-19[NETFILTER]: Add new PPTP conntrack and NAT helperHarald Welte1-0/+5
This new "version 3" PPTP conntrack/nat helper is finally ready for mainline inclusion. Special thanks to lots of last-minute bugfixing by Patric McHardy. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-09-06[NETFILTER]: Add NetBIOS name service helperPatrick McHardy1-0/+1
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29[NETFILTER]: Add new iptables TTL targetHarald Welte1-0/+1
This new iptables target allows manipulation of the TTL of an IPv4 packet. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29[NETFILTER]: Add string matchPablo Neira Ayuso1-0/+1
Signed-off-by: Pablo Neira Ayuso <pablo@eurodev.net> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29[NETFILTER]: Add new iptables "connbytes" matchHarald Welte1-0/+1
This patch ads a new "connbytes" match that utilizes the CONFIG_NF_CT_ACCT per-connection byte and packet counters. Using it you can do things like packet classification on average packet size within a connection. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29[NETFILTER]: New iptables DCCP protocol header matchHarald Welte1-0/+1
Using this new iptables DCCP protocol header match, it is possible to create simplistic stateless packet filtering rules for DCCP. It permits matching of port numbers, packet type and options. Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29[NETFILTER]: Add "nfnetlink_queue" netfilter queue handler over nfnetlinkHarald Welte1-0/+1
- Add new nfnetlink_queue module - Add new ipt_NFQUEUE and ip6t_NFQUEUE modules to access queue numbers 1-65535 - Mark ip_queue and ip6_queue Kconfig options as OBSOLETE - Update feature-removal-schedule to remove ip[6]_queue in December Signed-off-by: Harald Welte <laforge@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>