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* extensions: string: Adjust description of --to to recent kernel changesPhil Sutter2023-10-251-6/+3
| | | | | | | | | | | | | | This reverts commit 920ece2b392fb83bd26416e0e6f8f6a847aacbaa. Since kernel commit c4eee56e14fe ("net: skb_find_text: Ignore patterns extending past 'to'"), pattern scanning no longer happens past --to offset even if skb_seq_read() returned a larger block. Point this out in the description and also drop the '-1' offset which is not true as kernel's selftest in tools/testing/selftests/netfilter/xt_string.sh shows. Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1707 Signed-off-by: Phil Sutter <phil@nwl.cc>
* extensions: string: Clarify description of --toPhil Sutter2023-10-121-2/+6
| | | | | | | | String match indeed returns a match as long as the given pattern starts in the range of --from and --to, update the text accordingly. Also add a note regarding fragment boundaries. Closes: https://bugzilla.netfilter.org/show_bug.cgi?id=1707
* man: string: document BM false negativesJeremy Sowden2023-06-161-0/+15
| | | | | | | | | | For non-linear skb's there's a possibility that the kernel's Boyer-Moore text-search implementation may miss matches. There's a warning about this in the kernel source. Include that warning in the man-page. Link: https://bugzilla.netfilter.org/show_bug.cgi?id=1390 Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Phil Sutter <phil@nwl.cc>
* Fixed some man pages typos ('This modules' -> 'This module')Álvaro Santos2020-01-161-1/+1
| | | | | Signed-off-by: Álvaro Santos <aa.santos@campus.fct.unl.pt> Signed-off-by: Phil Sutter <phil@nwl.cc>
* man: string: document icaseFlorian Westphal2015-01-051-0/+3
| | | | Signed-off-by: Florian Westphal <fw@strlen.de>
* iptables: libxt_string.man add examplesLaurence J. Lane2013-08-241-0/+10
| | | | | | | | Add usage examples for string and hex string patterns. References: http://bugs.debian.org/699904 Signed-off-by: Laurence J. Lane <ljlane@debian.org> Signed-off-by: Florian Westphal <fw@strlen.de>
* doc: xt_string: correct copy-and-pasting in manpageJan Engelhardt2010-06-041-1/+3
| | | | | References: http://bugzilla.netfilter.org/show_bug.cgi?id=653 Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
* doc: escape minus sign in manpagesJan Engelhardt2009-01-121-5/+5
| | | | | | | groff formats '-' as a hyphen, and '\-' is needed for a minus. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
* manpage updatesJan Engelhardt2008-06-081-2/+3
| | | | | | | | | A number of options support negation, but the manpage did not reflect this ("[!]" was absent). Also fix a few [] (optional arguments) to {} (required arguments) in the option-BNF. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: Patrick McHardy <kaber@trash.net>
* manpages: consistent syntaxPatrick McHardy2008-06-021-1/+1
| | | | | | | | | | In the manpages, bold is used to denote characters the user has to enter verbatim, italic denotes placeholders and non-highlighted pieces are used as a structure: "[]" specifying an optional part, "{}" a mandatory part, with "|" used for alternations. The "!" for negation is better supported before the option than after it, too. The patch makes a few files consistent with this style already used in manpages.
* Move libipt_string.man to libxt_string.man for ip6tables.8Yasuyuki KOZAKAI2007-11-291-0/+15