xtables: Implement arptables-{save,restore}

This adds C implementations for arptables-save and -restore in compat
layer based on the two perl scripts in legacy arptables repository.

To share common code, introduce nft_init_arp() analogous to
nft_init_eb() introduced earlier.

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Florian Westphal <fw@strlen.de>

1 files changed, 3 insertions, 16 deletions

diff --git a/iptables/xtables-arp-standalone.c b/iptables/xtables-arp-standalone.c
index 6553d28f..eca7bb97 100644
--- a/iptables/xtables-arp-standalone.c
+++ b/iptables/xtables-arp-standalone.c
@@ -47,24 +47,11 @@ int xtables_arp_main(int argc, char *argv[])
 {
 	int ret;
 	char *table = "filter";
-	struct nft_handle h = {
-		.family = NFPROTO_ARP,
-	};
+	struct nft_handle h;
 
-	arptables_globals.program_name = "arptables";
-	ret = xtables_init_all(&arptables_globals, NFPROTO_ARP);
-	if (ret < 0) {
-		fprintf(stderr, "%s/%s Failed to initialize arptables-compat\n",
-			arptables_globals.program_name,
-			arptables_globals.program_version);
-		exit(1);
-	}
+	nft_init_arp(&h, "arptables");
 
-#if defined(ALL_INCLUSIVE) || defined(NO_SHARED_LIBS)
-	init_extensionsa();
-#endif
-
-	ret = do_commandarp(&h, argc, argv, &table);
+	ret = do_commandarp(&h, argc, argv, &table, false);
 	if (ret)
 		ret = nft_commit(&h);