| /* |
| * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com> |
| * Copyright (c) 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 "tests.h" |
| |
| #ifdef HAVE_STRUCT_BR_PORT_MSG |
| |
| # include <stdio.h> |
| # include "test_nlattr.h" |
| # include <arpa/inet.h> |
| # include <linux/if_bridge.h> |
| # include <linux/rtnetlink.h> |
| |
| # ifndef MDB_TEMPORARY |
| # define MDB_TEMPORARY 0 |
| # endif |
| # ifndef MDBA_MDB_ENTRY_INFO |
| # define MDBA_MDB_ENTRY_INFO 1 |
| # endif |
| # ifndef MDBA_MDB_EATTR_TIMER |
| # define MDBA_MDB_EATTR_TIMER 1 |
| # endif |
| |
| const unsigned int hdrlen = sizeof(struct br_port_msg); |
| |
| static void |
| init_br_port_msg(struct nlmsghdr *const nlh, const unsigned int msg_len) |
| { |
| unsigned int len = msg_len; |
| |
| SET_STRUCT(struct nlmsghdr, nlh, |
| .nlmsg_len = len, |
| .nlmsg_type = RTM_GETMDB, |
| .nlmsg_flags = NLM_F_DUMP |
| ); |
| |
| struct br_port_msg *const msg = NLMSG_DATA(nlh); |
| SET_STRUCT(struct br_port_msg, msg, |
| .family = AF_UNIX, |
| .ifindex = ifindex_lo() |
| ); |
| |
| struct nlattr *nla = NLMSG_ATTR(nlh, sizeof(*msg)); |
| len -= NLMSG_SPACE(hdrlen); |
| SET_STRUCT(struct nlattr, nla, |
| .nla_len = len, |
| .nla_type = MDBA_MDB |
| ); |
| |
| nla = nla + 1; |
| len -= NLA_HDRLEN; |
| SET_STRUCT(struct nlattr, nla, |
| .nla_len = len, |
| .nla_type = MDBA_MDB_ENTRY |
| ); |
| } |
| |
| static void |
| print_br_port_msg(const unsigned int msg_len) |
| { |
| printf("{len=%u, type=RTM_GETMDB, flags=NLM_F_DUMP" |
| ", seq=0, pid=0}, {family=AF_UNIX" |
| ", ifindex=" IFINDEX_LO_STR "}" |
| ", {{nla_len=%u, nla_type=MDBA_MDB}" |
| ", {{nla_len=%u, nla_type=MDBA_MDB_ENTRY}", |
| msg_len, msg_len - NLMSG_SPACE(hdrlen), |
| msg_len - NLMSG_SPACE(hdrlen) - NLA_HDRLEN); |
| } |
| |
| int |
| main(void) |
| { |
| skip_if_unavailable("/proc/self/fd/"); |
| |
| const int fd = create_nl_socket(NETLINK_ROUTE); |
| |
| void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen)); |
| |
| static char pattern[4096]; |
| fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1); |
| |
| const unsigned int nla_type = 0xffff & NLA_TYPE_MASK; |
| char nla_type_str[256]; |
| sprintf(nla_type_str, "%#x /* MDBA_MDB_ENTRY_??? */", nla_type); |
| TEST_NLATTR_(fd, nlh0 - NLA_HDRLEN * 2, hdrlen + NLA_HDRLEN * 2, |
| init_br_port_msg, print_br_port_msg, |
| nla_type, nla_type_str, |
| 4, pattern, 4, |
| print_quoted_hex(pattern, 4); |
| printf("}}")); |
| |
| # ifdef HAVE_STRUCT_BR_MDB_ENTRY |
| struct br_mdb_entry entry = { |
| .ifindex = ifindex_lo(), |
| .state = MDB_TEMPORARY, |
| # ifdef HAVE_STRUCT_BR_MDB_ENTRY_FLAGS |
| .flags = MDB_FLAGS_OFFLOAD, |
| # endif |
| # ifdef HAVE_STRUCT_BR_MDB_ENTRY_VID |
| .vid = 0xcdef, |
| # endif |
| .addr = { |
| .proto = htons(AF_UNSPEC) |
| } |
| }; |
| |
| memcpy(&entry.addr.u, pattern, sizeof(entry.addr.u)); |
| TEST_NESTED_NLATTR_OBJECT_EX(fd, nlh0, hdrlen, |
| init_br_port_msg, print_br_port_msg, |
| MDBA_MDB_ENTRY_INFO, pattern, entry, 2, |
| printf("{ifindex=" IFINDEX_LO_STR); |
| printf(", state=MDB_TEMPORARY"); |
| # ifdef HAVE_STRUCT_BR_MDB_ENTRY_FLAGS |
| printf(", flags=MDB_FLAGS_OFFLOAD"); |
| # endif |
| # ifdef HAVE_STRUCT_BR_MDB_ENTRY_VID |
| PRINT_FIELD_U(", ", entry, vid); |
| # endif |
| printf(", addr={u="); |
| print_quoted_hex(&entry.addr.u, |
| sizeof(entry.addr.u)); |
| printf(", proto=htons(AF_UNSPEC)}}")); |
| |
| static const struct nlattr nla = { |
| .nla_len = sizeof(nla), |
| .nla_type = MDBA_MDB_EATTR_TIMER |
| }; |
| char buf[NLMSG_ALIGN(sizeof(entry)) + sizeof(nla)]; |
| memcpy(buf, &entry, sizeof(entry)); |
| memcpy(buf + NLMSG_ALIGN(sizeof(entry)), &nla, sizeof(nla)); |
| TEST_NLATTR(fd, nlh0 - NLA_HDRLEN * 2, hdrlen + NLA_HDRLEN * 2, |
| init_br_port_msg, print_br_port_msg, |
| MDBA_MDB_ENTRY_INFO, sizeof(buf), buf, sizeof(buf), |
| printf("{ifindex=" IFINDEX_LO_STR); |
| printf(", state=MDB_TEMPORARY"); |
| # ifdef HAVE_STRUCT_BR_MDB_ENTRY_FLAGS |
| printf(", flags=MDB_FLAGS_OFFLOAD"); |
| # endif |
| # ifdef HAVE_STRUCT_BR_MDB_ENTRY_VID |
| PRINT_FIELD_U(", ", entry, vid); |
| # endif |
| printf(", addr={u="); |
| print_quoted_hex(&entry.addr.u, sizeof(entry.addr.u)); |
| printf(", proto=htons(AF_UNSPEC)}}" |
| ", {nla_len=%u, nla_type=MDBA_MDB_EATTR_TIMER}}}", |
| nla.nla_len)); |
| # endif /* HAVE_STRUCT_BR_MDB_ENTRY */ |
| |
| puts("+++ exited with 0 +++"); |
| return 0; |
| } |
| |
| #else |
| |
| SKIP_MAIN_UNDEFINED("HAVE_STRUCT_BR_PORT_MSG") |
| |
| #endif |