[PATCH nft 1/3] netlink: swap byteorder for host-endian concat data

[Florian Westphal <fw@strlen.de>]

All data must be passed in network byte order, else matching
won't work respectively kernel will reject the interval because
it thinks that start is after end

This is needed to allow use of 'ppp*' in interval sets with
concatenations.

Signed-off-by: Florian Westphal <fw@strlen.de>
---
 src/netlink.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/netlink.c b/src/netlink.c
index 240c937e3ac5..89d864ed046a 100644
--- a/src/netlink.c
+++ b/src/netlink.c
@@ -259,6 +259,10 @@ static int netlink_gen_concat_data_expr(int end, const struct expr *i,
 			mpz_t v;
 
 			mpz_init_bitmask(v, i->len - i->prefix_len);
+
+			if (i->byteorder == BYTEORDER_HOST_ENDIAN)
+				mpz_switch_byteorder(v, i->len / BITS_PER_BYTE);
+
 			mpz_add(v, i->prefix->value, v);
 			count = netlink_export_pad(data, v, i);
 			mpz_clear(v);
-- 
2.35.1