Dmitry V. Levin
b93d52fe3d
strace is now provided under the terms of the GNU Lesser General Public License version 2.1 or later, see COPYING for more details. strace test suite is now provided under the terms of the GNU General Public License version 2 or later, see tests/COPYING for more details.
217 lines
5.4 KiB
C
217 lines
5.4 KiB
C
/*
|
|
* Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr>
|
|
* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
|
|
* Copyright (c) 2016-2018 The strace developers.
|
|
* All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: LGPL-2.1-or-later
|
|
*/
|
|
|
|
#include "defs.h"
|
|
|
|
#ifdef HAVE_STRUCT_BR_PORT_MSG
|
|
|
|
# include "netlink_route.h"
|
|
# include "nlattr.h"
|
|
# include "print_fields.h"
|
|
|
|
# include <netinet/in.h>
|
|
# include <linux/if_bridge.h>
|
|
# include "netlink.h"
|
|
|
|
# ifdef HAVE_STRUCT_BR_MDB_ENTRY_FLAGS
|
|
# include "xlat/mdb_flags.h"
|
|
# endif
|
|
# include "xlat/mdb_states.h"
|
|
# include "xlat/multicast_router_types.h"
|
|
# include "xlat/rtnl_mdb_attrs.h"
|
|
# include "xlat/rtnl_mdba_mdb_attrs.h"
|
|
# include "xlat/rtnl_mdba_mdb_eattr_attrs.h"
|
|
# include "xlat/rtnl_mdba_mdb_entry_attrs.h"
|
|
# include "xlat/rtnl_mdba_router_attrs.h"
|
|
# include "xlat/rtnl_mdba_router_pattr_attrs.h"
|
|
|
|
static const nla_decoder_t mdba_mdb_eattr_nla_decoders[] = {
|
|
[MDBA_MDB_EATTR_TIMER] = decode_nla_u32
|
|
};
|
|
|
|
static bool
|
|
decode_mdba_mdb_entry_info(struct tcb *const tcp,
|
|
const kernel_ulong_t addr,
|
|
const unsigned int len,
|
|
const void *const opaque_data)
|
|
{
|
|
# ifdef HAVE_STRUCT_BR_MDB_ENTRY
|
|
struct br_mdb_entry entry;
|
|
|
|
if (len < sizeof(entry))
|
|
return false;
|
|
else if (!umove_or_printaddr(tcp, addr, &entry)) {
|
|
PRINT_FIELD_IFINDEX("{", entry, ifindex);
|
|
PRINT_FIELD_XVAL(", ", entry, state, mdb_states, "MDB_???");
|
|
# ifdef HAVE_STRUCT_BR_MDB_ENTRY_FLAGS
|
|
PRINT_FIELD_FLAGS(", ", entry, flags,
|
|
mdb_flags, "MDB_FLAGS_???");
|
|
# endif
|
|
# ifdef HAVE_STRUCT_BR_MDB_ENTRY_VID
|
|
PRINT_FIELD_U(", ", entry, vid);
|
|
# endif
|
|
|
|
const int proto = ntohs(entry.addr.proto);
|
|
|
|
tprints(", addr={");
|
|
print_inet_addr(proto, &entry.addr.u,
|
|
sizeof(entry.addr.u), "u");
|
|
tprints(", proto=htons(");
|
|
printxval(addrfams, proto, "AF_???");
|
|
tprints(")}}");
|
|
}
|
|
|
|
const size_t offset = NLMSG_ALIGN(sizeof(entry));
|
|
if (len > offset) {
|
|
tprints(", ");
|
|
decode_nlattr(tcp, addr + offset, len - offset,
|
|
rtnl_mdba_mdb_eattr_attrs, "MDBA_MDB_EATTR_???",
|
|
mdba_mdb_eattr_nla_decoders,
|
|
ARRAY_SIZE(mdba_mdb_eattr_nla_decoders), NULL);
|
|
}
|
|
|
|
return true;
|
|
# else
|
|
return false;
|
|
# endif /* HAVE_STRUCT_BR_MDB_ENTRY */
|
|
}
|
|
|
|
static const nla_decoder_t mdba_mdb_entry_nla_decoders[] = {
|
|
[MDBA_MDB_ENTRY_INFO] = decode_mdba_mdb_entry_info
|
|
};
|
|
|
|
static bool
|
|
decode_mdba_mdb_entry(struct tcb *const tcp,
|
|
const kernel_ulong_t addr,
|
|
const unsigned int len,
|
|
const void *const opaque_data)
|
|
{
|
|
decode_nlattr(tcp, addr, len, rtnl_mdba_mdb_entry_attrs,
|
|
"MDBA_MDB_ENTRY_???", mdba_mdb_entry_nla_decoders,
|
|
ARRAY_SIZE(mdba_mdb_entry_nla_decoders), NULL);
|
|
|
|
return true;
|
|
}
|
|
|
|
static const nla_decoder_t mdba_mdb_nla_decoders[] = {
|
|
[MDBA_MDB_ENTRY] = decode_mdba_mdb_entry
|
|
};
|
|
|
|
static bool
|
|
decode_mdba_mdb(struct tcb *const tcp,
|
|
const kernel_ulong_t addr,
|
|
const unsigned int len,
|
|
const void *const opaque_data)
|
|
{
|
|
decode_nlattr(tcp, addr, len, rtnl_mdba_mdb_attrs, "MDBA_MDB_???",
|
|
mdba_mdb_nla_decoders,
|
|
ARRAY_SIZE(mdba_mdb_nla_decoders), NULL);
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool
|
|
decode_multicast_router_type(struct tcb *const tcp,
|
|
const kernel_ulong_t addr,
|
|
const unsigned int len,
|
|
const void *const opaque_data)
|
|
{
|
|
uint8_t type;
|
|
|
|
if (!umove_or_printaddr(tcp, addr, &type))
|
|
printxval(multicast_router_types, type, "MDB_RTR_TYPE_???");
|
|
|
|
return true;
|
|
}
|
|
|
|
static const nla_decoder_t mdba_router_pattr_nla_decoders[] = {
|
|
[MDBA_ROUTER_PATTR_TIMER] = decode_nla_u32,
|
|
[MDBA_ROUTER_PATTR_TYPE] = decode_multicast_router_type
|
|
};
|
|
|
|
static bool
|
|
decode_mdba_router_port(struct tcb *const tcp,
|
|
const kernel_ulong_t addr,
|
|
const unsigned int len,
|
|
const void *const opaque_data)
|
|
{
|
|
uint32_t ifindex;
|
|
|
|
if (len < sizeof(ifindex))
|
|
return false;
|
|
else if (!umove_or_printaddr(tcp, addr, &ifindex))
|
|
print_ifindex(ifindex);
|
|
|
|
const size_t offset = NLMSG_ALIGN(sizeof(ifindex));
|
|
if (len > offset) {
|
|
tprints(", ");
|
|
decode_nlattr(tcp, addr + offset, len - offset,
|
|
rtnl_mdba_router_pattr_attrs,
|
|
"MDBA_ROUTER_PATTR_???",
|
|
mdba_router_pattr_nla_decoders,
|
|
ARRAY_SIZE(mdba_router_pattr_nla_decoders), NULL);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static const nla_decoder_t mdba_router_nla_decoders[] = {
|
|
[MDBA_ROUTER_PORT] = decode_mdba_router_port
|
|
};
|
|
|
|
static bool
|
|
decode_mdba_router(struct tcb *const tcp,
|
|
const kernel_ulong_t addr,
|
|
const unsigned int len,
|
|
const void *const opaque_data)
|
|
{
|
|
decode_nlattr(tcp, addr, len, rtnl_mdba_router_attrs, "MDBA_ROUTER_???",
|
|
mdba_router_nla_decoders,
|
|
ARRAY_SIZE(mdba_router_nla_decoders), NULL);
|
|
|
|
return true;
|
|
}
|
|
|
|
static const nla_decoder_t br_port_msg_nla_decoders[] = {
|
|
[MDBA_MDB] = decode_mdba_mdb,
|
|
[MDBA_ROUTER] = decode_mdba_router
|
|
};
|
|
|
|
DECL_NETLINK_ROUTE_DECODER(decode_br_port_msg)
|
|
{
|
|
struct br_port_msg bpm = { .family = family };
|
|
size_t offset = sizeof(bpm.family);
|
|
bool decode_nla = false;
|
|
|
|
PRINT_FIELD_XVAL("{", bpm, family, addrfams, "AF_???");
|
|
|
|
tprints(", ");
|
|
if (len >= sizeof(bpm)) {
|
|
if (!umoven_or_printaddr(tcp, addr + offset,
|
|
sizeof(bpm) - offset,
|
|
(char *) &bpm + offset)) {
|
|
PRINT_FIELD_IFINDEX("", bpm, ifindex);
|
|
decode_nla = true;
|
|
}
|
|
} else
|
|
tprints("...");
|
|
tprints("}");
|
|
|
|
offset = NLMSG_ALIGN(sizeof(bpm));
|
|
if (decode_nla && len > offset) {
|
|
tprints(", ");
|
|
decode_nlattr(tcp, addr + offset, len - offset,
|
|
rtnl_mdb_attrs, "MDBA_???",
|
|
br_port_msg_nla_decoders,
|
|
ARRAY_SIZE(br_port_msg_nla_decoders), NULL);
|
|
}
|
|
}
|
|
|
|
#endif
|