From: Roberto García <rodanber@xxxxxxxxx>
Add translation for the MARK target to nftables.
Examples:
$ sudo iptables-translate -t mangle -A OUTPUT -p tcp --dport 22 -j MARK
--set-mark 64
nft add rule ip mangle OUTPUT tcp dport 22 counter meta mark set 0x40
$ sudo iptables-translate -t mangle -A OUTPUT -p tcp --dport 22 -j MARK
--set-xmark 64
nft add rule ip mangle OUTPUT tcp dport 22 counter meta mark set 0x40
$ sudo iptables-translate -t mangle -A OUTPUT -p tcp --dport 22 -j MARK
--or-mark 64
nft add rule ip mangle OUTPUT tcp dport 22 counter meta mark set mark or 0x40
$ sudo iptables-translate -t mangle -A OUTPUT -p tcp --dport 22 -j MARK --and-mark
64
nft add rule ip mangle OUTPUT tcp dport 22 counter meta mark set mark and 0x40
$ sudo iptables-translate -t mangle -A OUTPUT -p tcp --dport 22 -j MARK
--xor-mark 64
nft add rule ip mangle OUTPUT tcp dport 22 counter meta mark set mark xor 0x40
Signed-off-by: Roberto García <rodanber@xxxxxxxxx>
---
extensions/libxt_MARK.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/extensions/libxt_MARK.c b/extensions/libxt_MARK.c
index 556dbde..9383f64 100644
--- a/extensions/libxt_MARK.c
+++ b/extensions/libxt_MARK.c
@@ -245,6 +245,26 @@ static void mark_tg_save(const void *ip, const struct xt_entry_target *target)
printf(" --set-xmark 0x%x/0x%x", info->mark, info->mask);
}
+static int mark_tg_xlate(const void *ip, const struct xt_entry_target *target,
+ struct xt_xlate *xl, int numeric)
+{
+ const struct xt_mark_tginfo2 *info = (const void *)target->data;
+
+ if (info->mark == 0)
+ xt_xlate_add(xl, "meta mark set mark and 0x%x",
+ (unsigned int)(uint32_t)~info->mask);
+ else if (info->mark == info->mask)
+ xt_xlate_add(xl, "meta mark set mark or 0x%x", info->mark);
+ else if (info->mask == 0)
+ xt_xlate_add(xl, "meta mark set mark xor 0x%x", info->mark);
+ else if (info->mask == 0xffffffffU)
+ xt_xlate_add(xl, "meta mark set 0x%x", info->mark);
+ else
+ xt_xlate_add(xl, "meta mark xset 0x%x/0x%x", info->mark, info->mask);
+
+ return 1;
+}
+
static struct xtables_target mark_tg_reg[] = {
{
.family = NFPROTO_UNSPEC,
@@ -287,6 +307,7 @@ static struct xtables_target mark_tg_reg[] = {
.x6_parse = mark_tg_parse,
.x6_fcheck = mark_tg_check,
.x6_options = mark_tg_opts,
+ .xlate = mark_tg_xlate,
},
};
--
2.8.0
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