4ee22cabea
* rtnl_rule.c: Include "nlattr.h" and "xlat/rtnl_rule_attrs.h". (decode_fib_rule_hdr): Call decode_nlattr. * xlat/rtnl_rule_attrs.in: New file. Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/*
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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) 2016-2017 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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#include "netlink_route.h"
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#include "nlattr.h"
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#include "print_fields.h"
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#include "netlink.h"
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#include <linux/rtnetlink.h>
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#ifdef HAVE_LINUX_FIB_RULES_H
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# include <linux/fib_rules.h>
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#endif
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#include "xlat/fib_rule_actions.h"
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#include "xlat/fib_rule_flags.h"
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#include "xlat/rtnl_rule_attrs.h"
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DECL_NETLINK_ROUTE_DECODER(decode_fib_rule_hdr)
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{
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/*
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* struct rtmsg and struct fib_rule_hdr are essentially
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* the same structure, use struct rtmsg but treat it as
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* struct fib_rule_hdr.
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*/
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struct rtmsg msg = { .rtm_family = family };
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size_t offset = sizeof(msg.rtm_family);
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bool decode_nla = false;
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tprints("{family=");
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printxval(addrfams, msg.rtm_family, "AF_???");
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tprints(", ");
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if (len >= sizeof(msg)) {
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if (!umoven_or_printaddr(tcp, addr + offset,
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sizeof(msg) - offset,
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(void *) &msg + offset)) {
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tprintf("dst_len=%u, src_len=%u",
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msg.rtm_dst_len, msg.rtm_src_len);
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tprints(", tos=");
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printflags(ip_type_of_services, msg.rtm_tos,
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"IPTOS_TOS_???");
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tprints(", table=");
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printxval(routing_table_ids, msg.rtm_table, NULL);
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tprints(", action=");
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printxval(fib_rule_actions, msg.rtm_type, "FR_ACT_???");
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tprints(", flags=");
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printflags(fib_rule_flags, msg.rtm_flags,
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"FIB_RULE_???");
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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(msg));
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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_rule_attrs, "FRA_???", NULL, 0, NULL);
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}
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}
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