netlink: add a basic rtnetlink parser of neightbl messages

* rtnl_neightbl.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* netlink_route.h (decode_ndtmsg): New prototype.
* netlink_route.c (route_decoders): Add RTM_GETNEIGHTBL,
RTM_NEWNEIGHTBL, and RTM_SETNEIGHTBL.

Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
This commit is contained in:
JingPiao Chen 2017-08-13 10:22:27 +08:00 committed by Dmitry V. Levin
parent 9f22c62767
commit 00e48349a9
4 changed files with 53 additions and 1 deletions

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@ -250,6 +250,7 @@ strace_SOURCES = \
rtnl_addr.c \
rtnl_link.c \
rtnl_neigh.c \
rtnl_neightbl.c \
rtnl_route.c \
rtnl_rule.c \
sched.c \

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@ -73,7 +73,11 @@ static const netlink_route_decoder_t route_decoders[] = {
[RTM_DELNEIGH - RTM_BASE] = decode_ndmsg,
[RTM_GETNEIGH - RTM_BASE] = decode_rtm_getneigh,
[RTM_NEWNEIGH - RTM_BASE] = decode_ndmsg
[RTM_NEWNEIGH - RTM_BASE] = decode_ndmsg,
[RTM_GETNEIGHTBL - RTM_BASE] = decode_ndtmsg,
[RTM_NEWNEIGHTBL - RTM_BASE] = decode_ndtmsg,
[RTM_SETNEIGHTBL - RTM_BASE] = decode_ndtmsg
};
bool

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@ -43,6 +43,7 @@ extern DECL_NETLINK_ROUTE_DECODER(decode_fib_rule_hdr);
extern DECL_NETLINK_ROUTE_DECODER(decode_ifaddrmsg);
extern DECL_NETLINK_ROUTE_DECODER(decode_ifinfomsg);
extern DECL_NETLINK_ROUTE_DECODER(decode_ndmsg);
extern DECL_NETLINK_ROUTE_DECODER(decode_ndtmsg);
extern DECL_NETLINK_ROUTE_DECODER(decode_rtm_getneigh);
extern DECL_NETLINK_ROUTE_DECODER(decode_rtmsg);

46
rtnl_neightbl.c Normal file
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@ -0,0 +1,46 @@
/*
* 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"
#include "netlink_route.h"
#include "print_fields.h"
#include "netlink.h"
#include <linux/rtnetlink.h>
#ifdef HAVE_LINUX_NEIGHBOUR_H
# include <linux/neighbour.h>
#endif
DECL_NETLINK_ROUTE_DECODER(decode_ndtmsg)
{
struct ndtmsg ndtmsg = { .ndtm_family = family };
PRINT_FIELD_XVAL("{", ndtmsg, ndtm_family, addrfams, "AF_???");
tprints("}");
}