strace/rtnl_mdb.c
JingPiao Chen a4ae112a42 netlink: add basic decoding of NETLINK_ROUTE br_port_msg attributes
* rtnl_mdb.c: Include "netlink.h", "nlattr.h".
and "xlat/rtnl_mdb_attrs.h".
(decode_br_port_msg): Call decode_nlattr.
* xlat/rtnl_mdb_attrs.in: New file.

Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
2017-08-15 22:34:46 +00:00

73 lines
2.5 KiB
C

/*
* Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr>
* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
* Copyright (c) 2016-2017 The strace developers.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#ifdef HAVE_STRUCT_BR_PORT_MSG
# include "netlink_route.h"
# include "nlattr.h"
# include "print_fields.h"
# include <netinet/in.h>
# include <linux/if_bridge.h>
# include "netlink.h"
# include "xlat/rtnl_mdb_attrs.h"
DECL_NETLINK_ROUTE_DECODER(decode_br_port_msg)
{
struct br_port_msg bpm = { .family = family };
size_t offset = sizeof(bpm.family);
bool decode_nla = false;
PRINT_FIELD_XVAL("{", bpm, family, addrfams, "AF_???");
tprints(", ");
if (len >= sizeof(bpm)) {
if (!umoven_or_printaddr(tcp, addr + offset,
sizeof(bpm) - offset,
(void *) &bpm + offset)) {
PRINT_FIELD_IFINDEX("", bpm, ifindex);
decode_nla = true;
}
} else
tprints("...");
tprints("}");
offset = NLMSG_ALIGN(sizeof(bpm));
if (decode_nla && len > offset) {
tprints(", ");
decode_nlattr(tcp, addr + offset, len - offset,
rtnl_mdb_attrs, "MDBA_???", NULL, 0, NULL);
}
}
#endif