Add translation for module hop-by-hop to nftables.
Full translation of this match awaits the support for --hbh-opts option.
Examples:
$ sudo ip6tables-translate -A INPUT -m hbh --hbh-len 33
nft add rule ip6 filter INPUT hbh hdrlength 33 counter
$ sudo ip6tables-translate -A INPUT -m hbh ! --hbh-len 33
nft add rule ip6 filter INPUT hbh hdrlength != 33 counter
Signed-off-by: Shivani Bhardwaj <shivanib...@gmail.com>
---
extensions/libip6t_hbh.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/extensions/libip6t_hbh.c b/extensions/libip6t_hbh.c
index c0389ed..f968036 100644
--- a/extensions/libip6t_hbh.c
+++ b/extensions/libip6t_hbh.c
@@ -164,6 +164,22 @@ static void hbh_save(const void *ip, const struct
xt_entry_match *match)
print_options(optinfo->optsnr, (uint16_t *)optinfo->opts);
}
+static int hbh_xlate(const struct xt_entry_match *match,
+ struct xt_xlate *xl, int numeric)
+{
+ const struct ip6t_opts *optinfo = (struct ip6t_opts *)match->data;
+
+ xt_xlate_add(xl, "hbh ");
+
+ if (optinfo->flags & IP6T_OPTS_LEN) {
+ xt_xlate_add(xl, "hdrlength%s %u ",
+ optinfo->invflags & IP6T_OPTS_INV_LEN ? " !=" : "",
+ optinfo->hdrlen);
+ }
+
+ return 1;
+}
+
static struct xtables_match hbh_mt6_reg = {
.name = "hbh",
.version = XTABLES_VERSION,
@@ -175,6 +191,7 @@ static struct xtables_match hbh_mt6_reg = {
.save = hbh_save,
.x6_parse = hbh_parse,
.x6_options = hbh_opts,
+ .xlate = hbh_xlate,
};
void
--
1.9.1
--
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