summaryrefslogtreecommitdiffstats
path: root/extensions/libip6t_frag.c
Commit message (Collapse)AuthorAgeFilesLines
* src: introduce struct xt_xlate_{mt,tg}_paramsPablo Neira Ayuso2016-07-251-3/+4
| | | | | | | | 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>
* xtables-translate: fix multiple spaces issuePablo M. Bermudo Garay2016-07-091-13/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a multiple spaces issue. The problem arises when a rule set loaded through iptables-compat-restore is listed in nft. Before this commit, two spaces were printed after every match translation: $ sudo iptables-save *filter :INPUT ACCEPT [0:0] -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT -A INPUT -p tcp -m multiport --dports 80:85 -m ttl --ttl-gt 5 -j ACCEPT COMMIT $ sudo iptables-compat-restore iptables-save $ sudo nft list ruleset table ip filter { chain INPUT { type filter hook input priority 0; policy accept; ct state related,established counter packets 0 bytes 0 accept ^^ ip protocol tcp tcp dport 80-85 ip ttl gt 5 counter packets 0 bytes 0 accept ^^ ^^ } } Signed-off-by: Pablo M. Bermudo Garay <pablombg@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* extensions: libip6t_frag: Add translation to nftLaura Garcia Liebana2016-06-141-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add translation for frag to nftables. According to the --fraglen code: case O_FRAGLEN: /* * As of Linux 3.0, the kernel does not check for * fraglen at all. */ In addition, the kernel code doesn't show any reference to the flag IP6T_FRAG_LEN, so this option is deprecated and won't be translated to nft. Examples: $ sudo iptables-translate -t filter -A INPUT -m frag --fragid 100:200 -j ACCEPT nft add rule ip6 filter INPUT frag id 100-200 counter accept $ sudo iptables-translate -t filter -A INPUT -m frag --fragid 100 --fragres --fragmore -j ACCEPT nft add rule ip6 filter INPUT frag id 100 frag reserved 1 frag more-fragments 1 counter accept $ sudo iptables-translate -t filter -A INPUT -m frag ! --fragid 100:200 -j ACCEPT nft add rule ip6 filter INPUT frag id != 100-200 counter accept $ sudo iptables-translate -t filter -A INPUT -m frag --fragid 100:200 --fraglast -j ACCEPT nft add rule ip6 filter INPUT frag id 100-200 frag more-fragments 0 counter accept $ sudo iptables-translate -t filter -A INPUT -m frag --fragid 100:200 --fragfirst -j ACCEPT nft add rule ip6 filter INPUT frag id 100-200 frag frag-off 0 counter accept $ sudo iptables-translate -t filter -A INPUT -m frag --fraglast -j ACCEPT nft add rule ip6 filter INPUT frag more-fragments 0 counter accept Signed-off-by: Laura Garcia Liebana <nevola@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* libip6t_frag: match any frag id by defaultMichal Kubeček2012-08-081-0/+8
| | | | | | | | | | | | | | | | | If no --fragid option is given, the frag extension only matches fragments with a zero-valued "Identification" field. This behavior deviates from what other extensions do (they match all values in this case) and is unexpected, and therefore changed by this patch. Additionally, --fragid 0:4294967295 leads to no output on `iptables -S` because part of the code thinks that this would be the default, when it is not. So, default to match all frag values, such that iptables -S not outputting anything also becomes correct. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: Jan Engelhardt <jengelh@inai.de>
* libip6t_frag: restore inversion supportJan Engelhardt2011-08-211-0/+16
| | | | | | | | --fraglen also was not printed since v1.4.11~26^2~22. References: Dave Täht via netfilter-devel on 2011-08-20 14:40:11 -0700 References: <CAA93jw6mpDL6rLXM+9SpAhafkDdKoSfhAxU8UM87vUqjuzjYJw@mail.gmail.com> Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* libxtables: have xtopt_parse_mint interpret partially-spec'd rangesJan Engelhardt2011-05-251-8/+4
| | | | | | | | | | | | | When ":n" or "n:" is specified, it will now be interpreted as "0:n" and "n:<max>", respecitvely. nvals will always reflect the number of (expanded) components. This restores the functionality of options that take such partially-unspecified ranges. This makes it possible to nuke the per-matchdata init functions of some extensions and simply the extensions postparsing to the point where it only needs to check for nvals==1 or ==2. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* libip6t_frag: use guided option parserJan Engelhardt2011-04-061-109/+36
| | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* extensions: remove redundant init functionsJan Engelhardt2011-02-191-4/+0
| | | | | | The main program already zeroes the per-extension data block. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* doc: fix misspelling of "field"Jan Engelhardt2011-02-181-1/+1
| | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* iptables: do not print trailing whitespacesJan Engelhardt2011-01-311-19/+19
| | | | | | | | | | | | | | | | | 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>
* src: use C99/POSIX typesJan Engelhardt2011-01-081-3/+3
| | | | | | "u_int" was a non-standardized extension predating C99 on some platforms. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* all: consistent syntax use in struct optionJan Engelhardt2010-07-231-7/+8
| | | | | | Try to inhibit copypasting old stuff. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* iptables/extensions: make bundled options work againJan Engelhardt2009-11-031-2/+2
| | | | | | | | | | | | | When using a bundled option like "-ptcp", 'argv[optind-1]' would logically point to "-ptcp", but this is obviously not right. 'optarg' is needed instead, which if properly offset to "tcp". Not all places change optind-based access to optarg; where look-ahead is needed, such as for tcp's --tcp-flags option for example, optind is ok. References: http://bugzilla.netfilter.org/show_bug.cgi?id=611 Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* libxtables: hand argv to xtables_check_inverseJan Engelhardt2009-11-031-2/+2
| | | | | | | | | 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>
* libxtables: prefix exit_error to xtables_errorJan Engelhardt2009-02-211-9/+9
| | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* libxtables: prefix/order - move check_inverse to xtables.cJan Engelhardt2009-01-301-2/+2
| | | | | | | This also adds a warning that intrapositional negation support is deprecated. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* src: remove redundant castsJan Engelhardt2009-01-271-1/+1
| | | | | | All of them are implicitly convertable without any wanted side effects. Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* iptables-save: output ! in position according to manpageJan Engelhardt2008-12-091-2/+2
| | | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
* 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 Engelhardt2008-09-011-7/+1
| | | | | | | | 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>
* Synchronize invert flag order with manpagesJan Engelhardt2008-08-131-2/+2
| | | | | Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
* Remove old functions, constantsJan Engelhardt2008-04-151-8/+8
|
* fix gcc warningsMax Kellermann2008-01-291-1/+1
| | | | Max Kellermann <max@duempel.org>
* Unique names 5/6Jan Engelhardt2007-10-041-22/+16
| | | | | | | | | | | Give symbols of libxt matches unique names (3/3). 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 Engelhardt2007-10-041-7/+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 McHardy2007-09-081-7/+7
|
* Remove last vestiges of NFC (Peter Riley <Peter.Riley@hotpop.com>)Peter Riley2007-09-021-2/+1
|
* Make the option structures const.Jan Engelhardt2007-07-301-1/+1
| | | | Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
* Fixes warning on compilation of ip6tables matches/targetsYasuyuki KOZAKAI2007-07-241-3/+3
| | | | | | This changes the type of arguments as follows - ip6t_ip6 * -> void * - ip6t_entry * -> void *
* Replaces ip6t_entry_* with xt_entry_* in matches/targetsYasuyuki KOZAKAI2007-07-241-4/+4
|
* 1- printf() simplifications, 2- indentation fixes, 3- C99 initializers. ↵Harald Welte2003-09-051-43/+51
| | | | (Stephane Ouellette)
* globally replace NETFILTER_VERSION with IPTABLES_VERSION to have consistent ↵Harald Welte2002-05-291-2/+2
| | | | naming
* Some ipv6 fixes by kisza:András Kis-Szabó2002-04-241-17/+8
| | | | | | AH save function fix (problem with --len ! 0) FRAG help fix FRAG save and prtint fix (problem with --len [!] 0)
* new ip6 FRAG match by kiszaAndrás Kis-Szabó2002-03-261-0/+273
generated by cgit v1.2.3 (git 2.25.0) at 2024-11-16 21:58:51 +0000