1 files changed, 77 insertions, 0 deletions
diff --git a/src/rtnl_addrlabel.c b/src/rtnl_addrlabel.c
new file mode 100644
index 000000000..c4b22f012
--- /dev/null
+++ b/src/rtnl_addrlabel.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr>
+ * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
+ * Copyright (c) 2016-2018 The strace developers.
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+#include "defs.h"
+
+#ifdef HAVE_STRUCT_IFADDRLBLMSG
+
+# include "netlink_route.h"
+# include "nlattr.h"
+
+# include <linux/if_addrlabel.h>
+# include "netlink.h"
+
+# include "xlat/rtnl_addrlabel_attrs.h"
+
+static bool
+decode_ifal_address(struct tcb *const tcp,
+		    const kernel_ulong_t addr,
+		    const unsigned int len,
+		    const void *const opaque_data)
+{
+	const struct ifaddrlblmsg *const ifal = opaque_data;
+
+	decode_inet_addr(tcp, addr, len, ifal->ifal_family, NULL);
+
+	return true;
+}
+
+static const nla_decoder_t ifaddrlblmsg_nla_decoders[] = {
+	[IFAL_ADDRESS]	= decode_ifal_address,
+	[IFAL_LABEL]	= decode_nla_u32
+};
+
+DECL_NETLINK_ROUTE_DECODER(decode_ifaddrlblmsg)
+{
+	struct ifaddrlblmsg ifal = { .ifal_family = family };
+	size_t offset = sizeof(ifal.ifal_family);
+	bool decode_nla = false;
+
+	tprint_struct_begin();
+	PRINT_FIELD_XVAL(ifal, ifal_family, addrfams, "AF_???");
+
+	tprints(", ");
+	if (len >= sizeof(ifal)) {
+		if (!umoven_or_printaddr(tcp, addr + offset,
+					 sizeof(ifal) - offset,
+					 (char *) &ifal + offset)) {
+			PRINT_FIELD_U(ifal, ifal_prefixlen);
+			tprint_struct_next();
+			PRINT_FIELD_U(ifal, ifal_flags);
+			tprint_struct_next();
+			PRINT_FIELD_IFINDEX(ifal, ifal_index);
+			tprint_struct_next();
+			PRINT_FIELD_U(ifal, ifal_seq);
+			decode_nla = true;
+		}
+	} else
+		tprint_more_data_follows();
+	tprint_struct_end();
+
+	offset = NLMSG_ALIGN(sizeof(ifal));
+	if (decode_nla && len > offset) {
+		tprints(", ");
+		decode_nlattr(tcp, addr + offset, len - offset,
+			      rtnl_addrlabel_attrs, "IFAL_???",
+			      ifaddrlblmsg_nla_decoders,
+			      ARRAY_SIZE(ifaddrlblmsg_nla_decoders), &ifal);
+	}
+}
+
+#endif