Add translation for NF queue to nftables.
Examples:
$ sudo iptables-translate -t nat -A PREROUTING -p tcp --dport 80 -j NFQUEUE
--queue-num 30
nft add rule ip nat PREROUTING tcp dport 80 counter queue num 30
$ sudo iptables-translate -A FORWARD -j NFQUEUE --queue-num 0 --queue-bypass -p
TCP --sport 80
nft add rule ip filter FORWARD tcp sport 80 counter queue num 0 bypass
$ sudo iptables-translate -A FORWARD -j NFQUEUE --queue-bypass -p TCP --sport
80 --queue-balance 0:3 --queue-cpu-fanout
nft add rule ip filter FORWARD tcp sport 80 counter queue num 0-3 bypass,fanout
Signed-off-by: Shivani Bhardwaj <shivanib...@gmail.com>
---
Changes in v3:
Add static keyword to sep_need
extensions/libxt_NFQUEUE.c | 62 +++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 61 insertions(+), 1 deletion(-)
diff --git a/extensions/libxt_NFQUEUE.c b/extensions/libxt_NFQUEUE.c
index 0c86918..5312630 100644
--- a/extensions/libxt_NFQUEUE.c
+++ b/extensions/libxt_NFQUEUE.c
@@ -205,6 +205,62 @@ static void NFQUEUE_init_v1(struct xt_entry_target *t)
tinfo->queues_total = 1;
}
+static int NFQUEUE_xlate(const struct xt_entry_target *target,
+ struct xt_xlate *xl, int numeric)
+{
+ const struct xt_NFQ_info *tinfo =
+ (const struct xt_NFQ_info *)target->data;
+
+ xt_xlate_add(xl, "queue num %u ", tinfo->queuenum);
+
+ return 1;
+}
+
+static int NFQUEUE_xlate_v1(const struct xt_entry_target *target,
+ struct xt_xlate *xl, int numeric)
+{
+ const struct xt_NFQ_info_v1 *tinfo = (const void *)target->data;
+ unsigned int last = tinfo->queues_total;
+
+ if (last > 1) {
+ last += tinfo->queuenum - 1;
+ xt_xlate_add(xl, "queue num %u-%u ", tinfo->queuenum, last);
+ } else {
+ xt_xlate_add(xl, "queue num %u ", tinfo->queuenum);
+ }
+
+ return 1;
+}
+
+static bool sep_need;
+
+static int NFQUEUE_xlate_v2(const struct xt_entry_target *target,
+ struct xt_xlate *xl, int numeric)
+{
+ const struct xt_NFQ_info_v2 *info = (void *) target->data;
+
+ NFQUEUE_xlate_v1(target, xl, numeric);
+
+ if (info->bypass & NFQ_FLAG_BYPASS) {
+ xt_xlate_add(xl, "bypass");
+ sep_need = true;
+ }
+
+ return 1;
+}
+
+static int NFQUEUE_xlate_v3(const struct xt_entry_target *target,
+ struct xt_xlate *xl, int numeric)
+{
+ const struct xt_NFQ_info_v3 *info = (void *)target->data;
+
+ NFQUEUE_xlate_v2(target, xl, numeric);
+ if (info->flags & NFQ_FLAG_CPU_FANOUT)
+ xt_xlate_add(xl, "%sfanout ", sep_need ? "," : "");
+
+ return 1;
+}
+
static struct xtables_target nfqueue_targets[] = {
{
.family = NFPROTO_UNSPEC,
@@ -216,7 +272,8 @@ static struct xtables_target nfqueue_targets[] = {
.print = NFQUEUE_print,
.save = NFQUEUE_save,
.x6_parse = NFQUEUE_parse,
- .x6_options = NFQUEUE_opts
+ .x6_options = NFQUEUE_opts,
+ .xlate = NFQUEUE_xlate,
},{
.family = NFPROTO_UNSPEC,
.revision = 1,
@@ -230,6 +287,7 @@ static struct xtables_target nfqueue_targets[] = {
.save = NFQUEUE_save_v1,
.x6_parse = NFQUEUE_parse_v1,
.x6_options = NFQUEUE_opts,
+ .xlate = NFQUEUE_xlate_v1,
},{
.family = NFPROTO_UNSPEC,
.revision = 2,
@@ -243,6 +301,7 @@ static struct xtables_target nfqueue_targets[] = {
.save = NFQUEUE_save_v2,
.x6_parse = NFQUEUE_parse_v2,
.x6_options = NFQUEUE_opts,
+ .xlate = NFQUEUE_xlate_v2,
},{
.family = NFPROTO_UNSPEC,
.revision = 3,
@@ -256,6 +315,7 @@ static struct xtables_target nfqueue_targets[] = {
.save = NFQUEUE_save_v3,
.x6_parse = NFQUEUE_parse_v3,
.x6_options = NFQUEUE_opts,
+ .xlate = NFQUEUE_xlate_v3,
}
};
--
1.9.1
--
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