2 * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 #ifdef HAVE_LINUX_NETFILTER_NFNETLINK_H
35 # include <sys/socket.h>
37 # include <linux/netfilter/nfnetlink.h>
40 test_nlmsg_type(const int fd)
43 struct nlmsghdr nlh = {
44 .nlmsg_len = sizeof(nlh),
45 .nlmsg_flags = NLM_F_REQUEST,
48 # ifdef NFNL_MSG_BATCH_BEGIN
49 nlh.nlmsg_type = NFNL_MSG_BATCH_BEGIN;
50 rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
51 printf("sendto(%d, {len=%u, type=NFNL_MSG_BATCH_BEGIN"
52 ", flags=NLM_F_REQUEST, seq=0, pid=0}"
53 ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
54 fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
56 nlh.nlmsg_type = (NFNL_SUBSYS_CTNETLINK << 8) | NFNL_MSG_BATCH_BEGIN;
57 rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
58 printf("sendto(%d, {len=%u, type=NFNL_SUBSYS_CTNETLINK<<8|%#x"
59 ", flags=NLM_F_REQUEST, seq=0, pid=0}"
60 ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
61 fd, nlh.nlmsg_len, NFNL_MSG_BATCH_BEGIN,
62 (unsigned) sizeof(nlh), sprintrc(rc));
65 nlh.nlmsg_type = (NFNL_SUBSYS_CTNETLINK << 8);
66 rc = sendto(fd, &nlh, sizeof(nlh), MSG_DONTWAIT, NULL, 0);
67 printf("sendto(%d, {len=%u, type=NFNL_SUBSYS_CTNETLINK<<8|0"
68 ", flags=NLM_F_REQUEST, seq=0, pid=0}"
69 ", %u, MSG_DONTWAIT, NULL, 0) = %s\n",
70 fd, nlh.nlmsg_len, (unsigned) sizeof(nlh), sprintrc(rc));
75 skip_if_unavailable("/proc/self/fd/");
77 int fd = create_nl_socket(NETLINK_NETFILTER);
81 printf("+++ exited with 0 +++\n");
88 SKIP_MAIN_UNDEFINED("HAVE_LINUX_NETFILTER_NFNETLINK_H")