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      1 /*
      2  * Copyright (c) 2016 Fabien Siron <fabien.siron (at) epita.fr>
      3  * Copyright (c) 2017 JingPiao Chen <chenjingpiao (at) gmail.com>
      4  * Copyright (c) 2016-2017 The strace developers.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #include "defs.h"
     31 
     32 #ifdef HAVE_STRUCT_NETCONFMSG
     33 
     34 # include "netlink_route.h"
     35 # include "nlattr.h"
     36 # include "print_fields.h"
     37 
     38 # include <linux/netconf.h>
     39 # include "netlink.h"
     40 
     41 # include "xlat/rtnl_netconf_attrs.h"
     42 
     43 static const nla_decoder_t netconfmsg_nla_decoders[] = {
     44 	[NETCONFA_IFINDEX]			= decode_nla_ifindex,
     45 	[NETCONFA_FORWARDING]			= decode_nla_s32,
     46 	[NETCONFA_RP_FILTER]			= decode_nla_s32,
     47 	[NETCONFA_MC_FORWARDING]		= decode_nla_s32,
     48 	[NETCONFA_PROXY_NEIGH]			= decode_nla_s32,
     49 	[NETCONFA_IGNORE_ROUTES_WITH_LINKDOWN]	= decode_nla_s32,
     50 	[NETCONFA_INPUT]			= decode_nla_s32
     51 };
     52 
     53 DECL_NETLINK_ROUTE_DECODER(decode_netconfmsg)
     54 {
     55 	struct netconfmsg ncm = { .ncm_family = family };
     56 
     57 	PRINT_FIELD_XVAL("{", ncm, ncm_family, addrfams, "AF_???");
     58 	tprints("}");
     59 
     60 	const size_t offset = NLMSG_ALIGN(sizeof(ncm));
     61 	if (len > offset) {
     62 		tprints(", ");
     63 		decode_nlattr(tcp, addr + offset, len - offset,
     64 			      rtnl_netconf_attrs, "NETCONFA_???",
     65 			      netconfmsg_nla_decoders,
     66 			      ARRAY_SIZE(netconfmsg_nla_decoders), NULL);
     67 	}
     68 }
     69 
     70 #endif
     71