githubmirror/strace

src/rtnl_dcb.c

49 строк1 KB

Dmitry V. Levin

rtnl_dcb: use print_fields.h helpers

08 май 2021, 13:00

08 май 2021, 13:00001daa9

/*
 * Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr>
 * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
 * Copyright (c) 2016-2021 The strace developers.
 * All rights reserved.
 *
 * SPDX-License-Identifier: LGPL-2.1-or-later
 */

#include "defs.h"

#include "netlink_route.h"
#include "nlattr.h"

#include <linux/dcbnl.h>
#include "netlink.h"

#include "xlat/dcb_commands.h"
#include "xlat/rtnl_dcb_attrs.h"

DECL_NETLINK_ROUTE_DECODER(decode_dcbmsg)
{
	struct dcbmsg dcb = { .dcb_family = family };
	size_t offset = sizeof(dcb.dcb_family);
	bool decode_nla = false;

	tprint_struct_begin();
	PRINT_FIELD_XVAL(dcb, dcb_family, addrfams, "AF_???");
	tprint_struct_next();

	if (len >= sizeof(dcb)) {
		if (!umoven_or_printaddr(tcp, addr + offset,
					 sizeof(dcb) - offset,
					 (char *) &dcb + offset)) {
			PRINT_FIELD_XVAL(dcb, cmd,
					 dcb_commands, "DCB_CMD_???");
			decode_nla = true;
		}
	} else
		tprint_more_data_follows();
	tprint_struct_end();

	offset = NLMSG_ALIGN(sizeof(dcb));
	if (decode_nla && len > offset) {
		tprint_array_next();
		decode_nlattr(tcp, addr + offset, len - offset,
			      rtnl_dcb_attrs, "DCB_ATTR_???", NULL, 0, NULL);
	}
}