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/*
* 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 <linux/if_bridge.h>
# include <linux/rtnetlink.h>
# ifndef MDBA_ROUTER
# define MDBA_ROUTER 2
# endif
# ifndef MDBA_ROUTER_PORT
# define MDBA_ROUTER_PORT 1
# endif
# ifndef MDBA_ROUTER_PATTR_TYPE
# define MDBA_ROUTER_PATTR_TYPE 2
# endif
# ifndef MDB_RTR_TYPE_DISABLED
# define MDB_RTR_TYPE_DISABLED 0
# 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)
{
SET_STRUCT(struct nlmsghdr, nlh,
.nlmsg_len = msg_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));
SET_STRUCT(struct nlattr, nla,
.nla_len = msg_len - NLMSG_SPACE(hdrlen),
.nla_type = MDBA_ROUTER
);
}
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_ROUTER}",
msg_len, msg_len - NLMSG_SPACE(hdrlen));
}
int
main(void)
{
skip_if_unavailable("/proc/self/fd/");
const uint32_t ifindex = ifindex_lo();
const uint8_t type = MDB_RTR_TYPE_DISABLED;
static const struct nlattr nla = {
.nla_len = NLA_HDRLEN + sizeof(type),
.nla_type = MDBA_ROUTER_PATTR_TYPE
};
char buf[NLMSG_ALIGN(ifindex) + NLA_HDRLEN + sizeof(type)];
const int fd = create_nl_socket(NETLINK_ROUTE);
void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
NLA_HDRLEN + sizeof(buf));
static char pattern[4096];
fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_br_port_msg, print_br_port_msg,
MDBA_ROUTER_PORT, pattern, ifindex,
printf(IFINDEX_LO_STR));
memcpy(buf, &ifindex, sizeof(ifindex));
memcpy(buf + NLMSG_ALIGN(ifindex), &nla, sizeof(nla));
memcpy(buf + NLMSG_ALIGN(ifindex) + NLA_HDRLEN, &type, sizeof(type));
TEST_NLATTR(fd, nlh0 - NLA_HDRLEN, hdrlen + NLA_HDRLEN,
init_br_port_msg, print_br_port_msg,
MDBA_ROUTER_PORT, sizeof(buf), buf, sizeof(buf),
printf(IFINDEX_LO_STR
", {{nla_len=%u, nla_type=MDBA_ROUTER_PATTR_TYPE}"
", MDB_RTR_TYPE_DISABLED}}",
nla.nla_len));
puts("+++ exited with 0 +++");
return 0;
}
#else
SKIP_MAIN_UNDEFINED("HAVE_STRUCT_BR_PORT_MSG")
#endif
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