xshared: Share save_rule_details() with legacy

The function combines printing of input and output interfaces and
protocol parameter, all being IP family independent. Extend the function
to print fragment option ('-f'), too if requested. While being at it,
drop unused iptables_command_state parameter and reorder the remaining
ones a bit.

Signed-off-by: Phil Sutter <phil@nwl.cc>

1 files changed, 32 insertions, 0 deletions

diff --git a/iptables/xshared.c b/iptables/xshared.c
index db03aaaa..db701ead 100644
--- a/iptables/xshared.c
+++ b/iptables/xshared.c
@@ -941,3 +941,35 @@ void parse_chain(const char *chainname)
 			xtables_error(PARAMETER_PROBLEM,
 				      "Invalid chain name `%s'", chainname);
 }
+
+void save_rule_details(const char *iniface, unsigned const char *iniface_mask,
+		       const char *outiface, unsigned const char *outiface_mask,
+		       uint16_t proto, int frag, uint8_t invflags)
+{
+	if (iniface != NULL) {
+		save_iface('i', iniface, iniface_mask,
+			    invflags & IPT_INV_VIA_IN);
+	}
+	if (outiface != NULL) {
+		save_iface('o', outiface, outiface_mask,
+			    invflags & IPT_INV_VIA_OUT);
+	}
+
+	if (proto > 0) {
+		const char *pname = proto_to_name(proto, 0);
+
+		if (invflags & XT_INV_PROTO)
+			printf(" !");
+
+		if (pname)
+			printf(" -p %s", pname);
+		else
+			printf(" -p %u", proto);
+	}
+
+	if (frag) {
+		if (invflags & IPT_INV_FRAG)
+			printf(" !");
+		printf(" -f");
+	}
+}