Add translation for mobility header to nftables.
Examples:
$ sudo ip6tables-translate -A INPUT -p mh -j ACCEPT
nft add rule ip6 filter INPUT ip6 nexthdr mobility-header counter accept
$ sudo ip6tables-translate -A INPUT -p mh --mh-type 1 -j ACCEPT
nft add rule ip6 filter INPUT ip6 nexthdr mobility-header mh type 1 counter accept
$ sudo ip6tables-translate -A INPUT -p mh --mh-type 1:3 -j ACCEPT
nft add rule ip6 filter INPUT ip6 nexthdr mobility-header mh type 1-3 counter accept
Signed-off-by: Shivani Bhardwaj <shivanib134@xxxxxxxxx>
---
extensions/libip6t_mh.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/extensions/libip6t_mh.c b/extensions/libip6t_mh.c
index 686a293..55ce028 100644
--- a/extensions/libip6t_mh.c
+++ b/extensions/libip6t_mh.c
@@ -202,6 +202,26 @@ static void mh_save(const void *ip, const struct xt_entry_match *match)
printf(" --mh-type %u", mhinfo->types[0]);
}
+static int mh_xlate(const struct xt_entry_match *match,
+ struct xt_buf *buf, int numeric)
+{
+ const struct ip6t_mh *mhinfo = (struct ip6t_mh *)match->data;
+
+ if (mhinfo->types[0] == 0 && mhinfo->types[1] == 0xFF)
+ return 0;
+
+ if (mhinfo->types[0] != mhinfo->types[1])
+ xt_buf_add(buf, "mh type%s %u-%u ",
+ mhinfo->invflags & IP6T_MH_INV_TYPE ? " !=" : "",
+ mhinfo->types[0], mhinfo->types[1]);
+ else
+ xt_buf_add(buf, "mh type%s %u ",
+ mhinfo->invflags & IP6T_MH_INV_TYPE ? " !=" : "",
+ mhinfo->types[0]);
+
+ return 1;
+}
+
static const struct xt_option_entry mh_opts[] = {
{.name = "mh-type", .id = O_MH_TYPE, .type = XTTYPE_STRING,
.flags = XTOPT_INVERT},
@@ -220,6 +240,7 @@ static struct xtables_match mh_mt6_reg = {
.print = mh_print,
.save = mh_save,
.x6_options = mh_opts,
+ .xlate = mh_xlate,
};
void _init(void)
--
1.9.1
--
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