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95 lines
3.1 KiB
95 lines
3.1 KiB
4 months ago
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/*
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* Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr>
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* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
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* Copyright (c) 2016-2018 The strace developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "defs.h"
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#ifdef HAVE_STRUCT_IFADDRLBLMSG
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# include "netlink_route.h"
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# include "nlattr.h"
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# include "print_fields.h"
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# include <linux/if_addrlabel.h>
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# include "netlink.h"
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# include "xlat/rtnl_addrlabel_attrs.h"
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static bool
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decode_ifal_address(struct tcb *const tcp,
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const kernel_ulong_t addr,
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const unsigned int len,
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const void *const opaque_data)
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{
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const struct ifaddrlblmsg *const ifal = opaque_data;
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decode_inet_addr(tcp, addr, len, ifal->ifal_family, NULL);
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return true;
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}
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static const nla_decoder_t ifaddrlblmsg_nla_decoders[] = {
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[IFAL_ADDRESS] = decode_ifal_address,
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[IFAL_LABEL] = decode_nla_u32
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};
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DECL_NETLINK_ROUTE_DECODER(decode_ifaddrlblmsg)
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{
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struct ifaddrlblmsg ifal = { .ifal_family = family };
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size_t offset = sizeof(ifal.ifal_family);
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bool decode_nla = false;
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PRINT_FIELD_XVAL("{", ifal, ifal_family, addrfams, "AF_???");
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tprints(", ");
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if (len >= sizeof(ifal)) {
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if (!umoven_or_printaddr(tcp, addr + offset,
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sizeof(ifal) - offset,
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(char *) &ifal + offset)) {
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PRINT_FIELD_U("", ifal, ifal_prefixlen);
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PRINT_FIELD_U(", ", ifal, ifal_flags);
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PRINT_FIELD_IFINDEX(", ", ifal, ifal_index);
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PRINT_FIELD_U(", ", ifal, ifal_seq);
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decode_nla = true;
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}
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} else
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tprints("...");
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tprints("}");
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offset = NLMSG_ALIGN(sizeof(ifal));
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if (decode_nla && len > offset) {
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tprints(", ");
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decode_nlattr(tcp, addr + offset, len - offset,
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rtnl_addrlabel_attrs, "IFAL_???",
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ifaddrlblmsg_nla_decoders,
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ARRAY_SIZE(ifaddrlblmsg_nla_decoders), &ifal);
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}
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}
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#endif
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