[iptables PATCH 1/2] arptables-nft: Set h-type/h-length masks by default, too

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These masks are not used in nftables backend, but mangle extension
checks arhln_mask value to make sure --h-length was given (which is
implicitly the case).

Fixes: 5aecb2d8bfdda ("arptables: pre-init hlen and ethertype")
Signed-off-by: Phil Sutter <phil@xxxxxx>
---
 iptables/xtables-arp.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/iptables/xtables-arp.c b/iptables/xtables-arp.c
index 57e717fa901a1..4b663775c5bee 100644
--- a/iptables/xtables-arp.c
+++ b/iptables/xtables-arp.c
@@ -910,8 +910,12 @@ int do_commandarp(struct nft_handle *h, int argc, char *argv[], char **table,
 {
 	struct iptables_command_state cs = {
 		.jumpto = "",
-		.arp.arp.arhln = 6,
-		.arp.arp.arhrd = htons(ARPHRD_ETHER),
+		.arp.arp = {
+			.arhln = 6,
+			.arhln_mask = 255,
+			.arhrd = htons(ARPHRD_ETHER),
+			.arhrd_mask = 65535,
+		},
 	};
 	int invert = 0;
 	unsigned int nsaddrs = 0, ndaddrs = 0;
-- 
2.20.1




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