c23f5baaec
* rtnl_addrlabel.c (decode_ifal_address): New function. (ifaddrlblmsg_nla_decoders): New array. (decode_ifaddrlblmsg): Use it.
95 lines
3.1 KiB
C
95 lines
3.1 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_IFADDRLBLMSG
|
|
|
|
# include "netlink_route.h"
|
|
# include "nlattr.h"
|
|
# include "print_fields.h"
|
|
|
|
# include <linux/if_addrlabel.h>
|
|
# include "netlink.h"
|
|
|
|
# include "xlat/rtnl_addrlabel_attrs.h"
|
|
|
|
static bool
|
|
decode_ifal_address(struct tcb *const tcp,
|
|
const kernel_ulong_t addr,
|
|
const unsigned int len,
|
|
const void *const opaque_data)
|
|
{
|
|
const struct ifaddrlblmsg *const ifal = opaque_data;
|
|
|
|
decode_inet_addr(tcp, addr, len, ifal->ifal_family, NULL);
|
|
|
|
return true;
|
|
}
|
|
|
|
static const nla_decoder_t ifaddrlblmsg_nla_decoders[] = {
|
|
[IFAL_ADDRESS] = decode_ifal_address,
|
|
[IFAL_LABEL] = decode_nla_u32
|
|
};
|
|
|
|
DECL_NETLINK_ROUTE_DECODER(decode_ifaddrlblmsg)
|
|
{
|
|
struct ifaddrlblmsg ifal = { .ifal_family = family };
|
|
size_t offset = sizeof(ifal.ifal_family);
|
|
bool decode_nla = false;
|
|
|
|
PRINT_FIELD_XVAL("{", ifal, ifal_family, addrfams, "AF_???");
|
|
|
|
tprints(", ");
|
|
if (len >= sizeof(ifal)) {
|
|
if (!umoven_or_printaddr(tcp, addr + offset,
|
|
sizeof(ifal) - offset,
|
|
(void *) &ifal + offset)) {
|
|
PRINT_FIELD_U("", ifal, ifal_prefixlen);
|
|
PRINT_FIELD_U(", ", ifal, ifal_flags);
|
|
PRINT_FIELD_IFINDEX(", ", ifal, ifal_index);
|
|
PRINT_FIELD_U(", ", ifal, ifal_seq);
|
|
decode_nla = true;
|
|
}
|
|
} else
|
|
tprints("...");
|
|
tprints("}");
|
|
|
|
offset = NLMSG_ALIGN(sizeof(ifal));
|
|
if (decode_nla && len > offset) {
|
|
tprints(", ");
|
|
decode_nlattr(tcp, addr + offset, len - offset,
|
|
rtnl_addrlabel_attrs, "IFAL_???",
|
|
ifaddrlblmsg_nla_decoders,
|
|
ARRAY_SIZE(ifaddrlblmsg_nla_decoders), &ifal);
|
|
}
|
|
}
|
|
|
|
#endif
|