Add translation for random mode to nftables. The nth mode is not supported yet.
Examples: $ iptables-translate -A INPUT -m statistic --mode random --probability 0.1 -j ACCEPT nft add rule ip filter INPUT meta random 0.10000000009 counter accept $ iptables-translate -A INPUT -m statistic --mode random ! --probability 0.1 -j ACCEPT nft add rule ip filter INPUT meta random != 0.10000000009 counter accept The .xlate indirection returns 0 if the translation is not available. Signed-off-by: Laura Garcia Liebana <[email protected]> --- Changes in v2: - Return 0 if the translation is not supported, as Pablo suggested. - Include not supported modes in the commit message, as Shivani suggested. Changes in v3: - Fix wrong email format. extensions/libxt_statistic.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/extensions/libxt_statistic.c b/extensions/libxt_statistic.c index b6ae5f5..c771363 100644 --- a/extensions/libxt_statistic.c +++ b/extensions/libxt_statistic.c @@ -133,6 +133,22 @@ static void statistic_save(const void *ip, const struct xt_entry_match *match) print_match(info, "--"); } +static int statistic_xlate(const struct xt_entry_match *match, + struct xt_xlate *xl, int numeric) +{ + const struct xt_statistic_info *info = (void *)match->data; + + if (info->mode == XT_STATISTIC_MODE_RANDOM) { + xt_xlate_add(xl, "meta random%s %.11f ", + (info->flags & XT_STATISTIC_INVERT) ? " !=" : "", + 1.0 * info->u.random.probability / 0x80000000); + } else { + return 0; + } + + return 1; +} + static struct xtables_match statistic_match = { .family = NFPROTO_UNSPEC, .name = "statistic", @@ -145,6 +161,7 @@ static struct xtables_match statistic_match = { .print = statistic_print, .save = statistic_save, .x6_options = statistic_opts, + .xlate = statistic_xlate, }; void _init(void) -- 2.7.0 -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
