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* extensions: REJECT: Merge reject tablesPhil Sutter2018-09-131-59/+57
| | | | | | | | | | | | Initial motivation for this was a covscan report for potential array out of bounds access in REJECT_xlate (a false-positive, because all possible values of reject->with occur in reject_table_xlate). Use reject types as array indices of reject_table so that reject->with serves as array index. Also merge reject_table_xlate into it. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Florian Westphal <fw@strlen.de>
* src: introduce struct xt_xlate_{mt,tg}_paramsPablo Neira Ayuso2016-07-251-3/+3
| | | | | | | | This structure is an extensible containers of parameters, so we don't need to propagate interface updates in every extension file in case we need to add new parameters in the future. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* extensions: libipt_REJECT: Avoid to print the default reject with value in ↵Laura Garcia Liebana2016-03-171-1/+3
| | | | | | | | | | | | | | | | | | | the translation Avoid to print the reject with value in the translation when the value is the default. Before this patch: $ sudo iptables-translate -A FORWARD -p TCP --dport 22 -j REJECT nft add rule ip filter FORWARD tcp dport 22 counter reject with icmp type port-unreachable After this patch: $ sudo iptables-translate -A FORWARD -p TCP --dport 22 -j REJECT nft add rule ip filter FORWARD tcp dport 22 counter reject Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* iptables-translate: pass ipt_entry and ip6t_entry to ->xlate()Pablo Neira Ayuso2016-03-091-1/+1
| | | | | | | The multiport match needs it, this basically leaves ->xlate() indirection with almost the same interface as ->print(). Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* extensions: rename xt_buf to xt_xlatePablo Neira Ayuso2016-02-161-3/+3
| | | | | | | Use a more generic name for this object to prepare the introduction of other translation specific fields. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* extensions: libipt_REJECT: Add translation to nftShivani Bhardwaj2016-02-161-2/+45
| | | | | | | | | | | | | | | | | | Add translation for target REJECT to nftables. Examples: $ sudo iptables-translate -A FORWARD -p TCP --dport 22 -j REJECT nft add rule ip filter FORWARD tcp dport 22 counter reject with icmp type port-unreachable $ sudo iptables-translate -A FORWARD -p TCP --dport 22 -j REJECT --reject-with icmp-net-unreachable nft add rule ip filter FORWARD tcp dport 22 counter reject with icmp type net-unreachable $ sudo iptables-translate -A FORWARD -p TCP --dport 22 -j REJECT --reject-with tcp-reset nft add rule ip filter FORWARD tcp dport 22 counter reject with tcp reset Signed-off-by: Shivani Bhardwaj <shivanib134@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* libip[6]t_REJECT: use guided option parserJan Engelhardt2011-04-061-32/+26
| | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* iptables: do not print trailing whitespacesJan Engelhardt2011-01-311-2/+2
| | | | | | | | | | | | | | | | | Due to the use of printf("foobar "), iptables emits spaces at the end-of-line, which looks odd to some users because it causes the terminal to wrap even if there is seemingly nothing to print. It may also have other points of annoyance, such as mailers interpreting a trailing space as an indicator that the paragraph continues when format=flowed is also on. And git highlights trailing spaces in red, so let's avoid :) Preexisting inconsistencies in outputting spaces in the right spot are also addressed right away. References: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=429579 Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* extensions: remove no longer necessary default: casesJan Engelhardt2011-01-081-2/+0
| | | | | | | Match and target parse functions now only get option characters they have defined themselves. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* all: consistent syntax use in struct optionJan Engelhardt2010-07-231-2/+3
| | | | | | Try to inhibit copypasting old stuff. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* libxtables: hand argv to xtables_check_inverseJan Engelhardt2009-11-031-1/+1
| | | | | | | | | In going to fix NF bug #611, "argv" is needed in xtables_check_inverse to set "optarg" to the right spot in case of an intrapositional negation. References: http://bugzilla.netfilter.org/show_bug.cgi?id=611 Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* iptables: replace open-coded sizeof by ARRAY_SIZEJan Engelhardt2009-05-261-5/+4
| | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* extensions: remove unwanted/add needed includes for IPv4 extsJan Engelhardt2009-02-211-1/+0
| | | | | | | Most touched files do not use anything from ip_tables.h, so remove that #include. multiport instead, does need it (ipt_entry). Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* libxtables: prefix exit_error to xtables_errorJan Engelhardt2009-02-211-2/+2
| | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* libxtables: prefix/order - move check_inverse to xtables.cJan Engelhardt2009-01-301-1/+1
| | | | | | | This also adds a warning that intrapositional negation support is deprecated. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* src: remove inclusion of iptables.hJan Engelhardt2008-11-201-1/+1
| | | | | | | | | iptables.h and ip6tables.h only include declarations internal to iptables (specifically iptables.c and ip6tables.c), as most of the public API has been moved to xtables.h a few months ago. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
* src: use NFPROTO_ constantsJan Engelhardt2008-11-181-1/+1
| | | | | | | | Resync netfilter.h from the latest kernel and make use of the new NFPROTO_ constants that have been introduced. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
* src: Update commentsJan Engelhardt2008-09-011-8/+0
| | | | | | | | A number of comments are redundant, some outdated and others outright wrong in their own way. Remove and fixup. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
* Remove old functions, constantsJan Engelhardt2008-04-151-6/+7
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* fix gcc warningsMax Kellermann2008-01-291-1/+1
| | | | Max Kellermann <max@duempel.org>
* Unique names 4/6Jan Engelhardt2007-10-041-22/+16
| | | | | | | | | | | Give symbols of libxt targets unique names (2/3). Adds unique prefixes to all functions (most of them - especially the hook functions) so that debugging programs can unambiguously map a symbol to an address. Also unifies the names of the xtables_match/xtables_target structs, (based upon libxt_connmark.c/libip6t_*.c). Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
* Delete empty ->final_check() functionsJan Engelhardt2007-10-041-6/+0
| | | | | | | Deletes empty ->final_check() functions, and makes ip[6]tables checks for NULL on these. Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
* Fix sparse warnings: non-ANSI function declarations, 0 used as pointerPatrick McHardy2007-09-081-3/+3
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* Remove last vestiges of NFC (Peter Riley <Peter.Riley@hotpop.com>)Peter Riley2007-09-021-1/+1
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* Make the option structures const.Jan Engelhardt2007-07-301-1/+1
| | | | Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
* Remove the .next=NULL field. This is automatically initialized to zero.Jan Engelhardt2007-07-301-1/+0
| | | | | | | I've kept .print=NULL and .save=NULL so it stands out (since iptables will do the print/save then). Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
* Fixes warning on compilation of iptables matches/targetsYasuyuki KOZAKAI2007-07-241-3/+3
| | | | | | | | | This changes the type of arguments as follows - ipt_ip * -> void * - ipt_entry * -> void * This patch doesn't change multiport, DNAT, SNAT, MASQUERADE, REDIRECT because these need more changes (casting void * variable with intended type)
* Replaces ipt_entry_* with xt_entry_* in matches/targetsYasuyuki KOZAKAI2007-07-241-4/+4
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* tcp-rst is the alias, not tcp-reset (Torsten Hilbrich)Harald Welte2005-11-221-1/+1
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* pull out pmtu changes to fix compilation issuesHarald Welte2005-04-151-120/+3
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* add REJECT with icmp-frag-needed (Florian Lohoff)Florian Lohoff2005-04-101-3/+120
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* Kill NFC_* stuff in iptables (Pablo Neira <pablo@eurodev.net>)Pablo Neira2005-02-141-2/+0
| | | | Fixes build with conntrack event patch for 2.6
* Pablo Neira: extensions conversion to C99 structure initializationPablo Neira2004-12-281-14/+13
| | | | (I removed the revision stuff for the moment, but this needs to go in before the code moves too much --RR)
* finally commit the overly delayed RFC1812 admin prohibited optionHarald Welte2003-05-241-1/+15
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* globally replace NETFILTER_VERSION with IPTABLES_VERSION to have consistent ↵Harald Welte2002-05-291-1/+1
| | | | naming
* Fix 'iptables -p !' bug (segfault when `!' used without argument)Harald Welte2002-03-141-1/+1
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* added break; to eliminate gcc3 warningMarc Boucher2002-01-191-0/+1
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* - added patch to support statically linking of iptablesHarald Welte2001-08-061-0/+1
| | | | - iptables-save/-restore is no longer experimental
* changed order of port_unreachable / prot_unreachable to reflect kernel enumHarald Welte2001-06-161-2/+2
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* fixed bug in save() function causing it to print '--reject-with reject-with' ↵Harald Welte2001-05-121-1/+6
| | | | in all cases
* Stop --reject-with echo-reply (won't be supported soon).Rusty Russell2000-12-181-0/+7
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* Remove ICMP packet-filtered option (deprecated).Rusty Russell2000-07-121-2/+2
| | | | Add tests for RST generation.
* Aligning matchsize and targetsize now responsibility of extension writersRusty Russell2000-07-031-2/+2
| | | | (PPC fix).
* REJECT enhancements.Rusty Russell2000-06-201-1/+7
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* Changes to allow matching (for delete) on part of a rule, for rules whichRusty Russell2000-04-191-0/+1
| | | | change in the kernel (eg. ipt_limit).
* Testsuite update.Rusty Russell2000-03-241-3/+1
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* Makefile fixes for release.v1.0.0-alphaRusty Russell2000-03-201-17/+17
| | | | Whitespace cleanups.
* reorganized tree after kernel mergeMarc Boucher2000-03-201-0/+159