diff options
Diffstat (limited to 'extensions/libxt_rpfilter.c')
| -rw-r--r-- | extensions/libxt_rpfilter.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/extensions/libxt_rpfilter.c b/extensions/libxt_rpfilter.c index 168e703f..d166baa2 100644 --- a/extensions/libxt_rpfilter.c +++ b/extensions/libxt_rpfilter.c @@ -77,6 +77,31 @@ static void rpfilter_save(const void *ip, const struct xt_entry_match *match) return rpfilter_print_prefix(ip, match->data, "--"); } +static int rpfilter_xlate(struct xt_xlate *xl, + const struct xt_xlate_mt_params *params) +{ + const struct xt_rpfilter_info *info = (void *)params->match->data; + bool invert = info->flags & XT_RPFILTER_INVERT; + + if (info->flags & XT_RPFILTER_ACCEPT_LOCAL) { + if (invert) + xt_xlate_add(xl, "fib saddr type != local "); + else + return 0; + } + + xt_xlate_add(xl, "fib saddr "); + + if (info->flags & XT_RPFILTER_VALID_MARK) + xt_xlate_add(xl, ". mark "); + if (!(info->flags & XT_RPFILTER_LOOSE)) + xt_xlate_add(xl, ". iif "); + + xt_xlate_add(xl, "oif %s0", invert ? "" : "!= "); + + return 1; +} + static struct xtables_match rpfilter_match = { .family = NFPROTO_UNSPEC, .name = "rpfilter", @@ -88,6 +113,7 @@ static struct xtables_match rpfilter_match = { .save = rpfilter_save, .x6_parse = rpfilter_parse, .x6_options = rpfilter_opts, + .xlate = rpfilter_xlate, }; void _init(void) |