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1 /*
2  * Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr>
3  * Copyright (c) 2017 JingPiao Chen <chenjingpiao@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 #include "netlink_route.h"
32 #include "nlattr.h"
33 #include "print_fields.h"
34 
35 #include "netlink.h"
36 #include <linux/rtnetlink.h>
37 
38 #include "xlat/rtnl_tc_action_attrs.h"
39 
40 static const nla_decoder_t tcamsg_nla_decoders[] = {
41 	[TCA_ACT_KIND]		= decode_nla_str,
42 	[TCA_ACT_OPTIONS]	= NULL, /* unimplemented */
43 	[TCA_ACT_INDEX]		= decode_nla_u32,
44 	[TCA_ACT_STATS]		= decode_nla_tc_stats,
45 	[TCA_ACT_PAD]		= NULL,
46 	[TCA_ACT_COOKIE]	= NULL /* default parser */
47 };
48 
DECL_NETLINK_ROUTE_DECODER(decode_tcamsg)49 DECL_NETLINK_ROUTE_DECODER(decode_tcamsg)
50 {
51 	struct tcamsg tca = { .tca_family = family };
52 
53 	PRINT_FIELD_XVAL("{", tca, tca_family, addrfams, "AF_???");
54 	tprints("}");
55 
56 	const size_t offset = NLMSG_ALIGN(sizeof(tca));
57 	if (len > offset) {
58 		tprints(", ");
59 		decode_nlattr(tcp, addr + offset, len - offset,
60 			      rtnl_tc_action_attrs, "TCA_ACT_???",
61 			      tcamsg_nla_decoders,
62 			      ARRAY_SIZE(tcamsg_nla_decoders), NULL);
63 	}
64 }
65