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147 lines
5.0 KiB
147 lines
5.0 KiB
/* |
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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.h" |
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#include "netlink_route.h" |
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#include <linux/rtnetlink.h> |
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#include "xlat/nl_route_types.h" |
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static void |
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decode_family(struct tcb *const tcp, const uint8_t family, |
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const kernel_ulong_t addr, const unsigned int len) |
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{ |
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tprints("{family="); |
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printxval(addrfams, family, "AF_???"); |
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if (len > sizeof(family)) { |
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tprints(", "); |
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printstr_ex(tcp, addr + sizeof(family), |
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len - sizeof(family), QUOTE_FORCE_HEX); |
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} |
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tprints("}"); |
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} |
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typedef DECL_NETLINK_ROUTE_DECODER((*netlink_route_decoder_t)); |
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static const netlink_route_decoder_t route_decoders[] = { |
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[RTM_DELLINK - RTM_BASE] = decode_ifinfomsg, |
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[RTM_GETLINK - RTM_BASE] = decode_ifinfomsg, |
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[RTM_NEWLINK - RTM_BASE] = decode_ifinfomsg, |
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[RTM_SETLINK - RTM_BASE] = decode_ifinfomsg, |
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[RTM_DELADDR - RTM_BASE] = decode_ifaddrmsg, |
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[RTM_GETADDR - RTM_BASE] = decode_ifaddrmsg, |
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[RTM_GETANYCAST - RTM_BASE] = decode_ifaddrmsg, |
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[RTM_GETMULTICAST - RTM_BASE] = decode_ifaddrmsg, |
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[RTM_NEWADDR - RTM_BASE] = decode_ifaddrmsg, |
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[RTM_DELROUTE - RTM_BASE] = decode_rtmsg, |
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[RTM_GETROUTE - RTM_BASE] = decode_rtmsg, |
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[RTM_NEWROUTE - RTM_BASE] = decode_rtmsg, |
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[RTM_DELRULE - RTM_BASE] = decode_fib_rule_hdr, |
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[RTM_GETRULE - RTM_BASE] = decode_fib_rule_hdr, |
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[RTM_NEWRULE - RTM_BASE] = decode_fib_rule_hdr, |
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[RTM_DELNEIGH - RTM_BASE] = decode_ndmsg, |
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[RTM_GETNEIGH - RTM_BASE] = decode_rtm_getneigh, |
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[RTM_NEWNEIGH - RTM_BASE] = decode_ndmsg, |
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[RTM_GETNEIGHTBL - RTM_BASE] = decode_ndtmsg, |
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[RTM_NEWNEIGHTBL - RTM_BASE] = decode_ndtmsg, |
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[RTM_SETNEIGHTBL - RTM_BASE] = decode_ndtmsg, |
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[RTM_DELQDISC - RTM_BASE] = decode_tcmsg, |
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[RTM_GETQDISC - RTM_BASE] = decode_tcmsg, |
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[RTM_NEWQDISC - RTM_BASE] = decode_tcmsg, |
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[RTM_DELTCLASS - RTM_BASE] = decode_tcmsg, |
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[RTM_GETTCLASS - RTM_BASE] = decode_tcmsg, |
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[RTM_NEWTCLASS - RTM_BASE] = decode_tcmsg, |
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[RTM_DELTFILTER - RTM_BASE] = decode_tcmsg, |
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[RTM_GETTFILTER - RTM_BASE] = decode_tcmsg, |
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[RTM_NEWTFILTER - RTM_BASE] = decode_tcmsg, |
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[RTM_DELACTION - RTM_BASE] = decode_tcamsg, |
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[RTM_GETACTION - RTM_BASE] = decode_tcamsg, |
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[RTM_NEWACTION - RTM_BASE] = decode_tcamsg, |
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#ifdef HAVE_STRUCT_IFADDRLBLMSG |
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[RTM_DELADDRLABEL - RTM_BASE] = decode_ifaddrlblmsg, |
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[RTM_GETADDRLABEL - RTM_BASE] = decode_ifaddrlblmsg, |
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[RTM_NEWADDRLABEL - RTM_BASE] = decode_ifaddrlblmsg, |
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#endif |
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#ifdef HAVE_STRUCT_DCBMSG |
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[RTM_GETDCB - RTM_BASE] = decode_dcbmsg, |
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[RTM_SETDCB - RTM_BASE] = decode_dcbmsg, |
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#endif |
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#ifdef HAVE_STRUCT_NETCONFMSG |
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[RTM_DELNETCONF - RTM_BASE] = decode_netconfmsg, |
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[RTM_GETNETCONF - RTM_BASE] = decode_netconfmsg, |
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[RTM_NEWNETCONF - RTM_BASE] = decode_netconfmsg, |
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#endif |
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#ifdef HAVE_STRUCT_BR_PORT_MSG |
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[RTM_DELMDB - RTM_BASE] = decode_br_port_msg, |
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[RTM_GETMDB - RTM_BASE] = decode_br_port_msg, |
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[RTM_NEWMDB - RTM_BASE] = decode_br_port_msg, |
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#endif |
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[RTM_DELNSID - RTM_BASE] = decode_rtgenmsg, |
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[RTM_GETNSID - RTM_BASE] = decode_rtgenmsg, |
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[RTM_NEWNSID - RTM_BASE] = decode_rtgenmsg |
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}; |
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bool |
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decode_netlink_route(struct tcb *const tcp, |
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const struct nlmsghdr *const nlmsghdr, |
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const kernel_ulong_t addr, |
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const unsigned int len) |
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{ |
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uint8_t family; |
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if (nlmsghdr->nlmsg_type == NLMSG_DONE) |
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return false; |
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if (!umove_or_printaddr(tcp, addr, &family)) { |
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const unsigned int index = nlmsghdr->nlmsg_type - RTM_BASE; |
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if (index < ARRAY_SIZE(route_decoders) |
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&& route_decoders[index]) { |
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route_decoders[index](tcp, nlmsghdr, family, addr, len); |
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} else { |
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decode_family(tcp, family, addr, len); |
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} |
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} |
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return true; |
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}
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