1 /* 2 * Copyright (c) 2015-2017 Dmitry V. Levin <ldv (at) altlinux.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 15 * 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. 26 */ 27 28 #include "tests.h" 29 #include <sys/socket.h> 30 #include "netlink.h" 31 32 int 33 create_nl_socket_ext(const int proto, const char *const name) 34 { 35 const int fd = socket(AF_NETLINK, SOCK_RAW, proto); 36 if (fd < 0) 37 perror_msg_and_skip("socket AF_NETLINK %s", name); 38 39 const struct sockaddr_nl addr = { .nl_family = AF_NETLINK }; 40 socklen_t len = sizeof(addr); 41 42 if (bind(fd, (const struct sockaddr *) &addr, len)) 43 perror_msg_and_skip("bind AF_NETLINK %s", name); 44 45 /* one more operation on this socket to win the race */ 46 int listening; 47 len = sizeof(listening); 48 if (getsockopt(fd, SOL_SOCKET, SO_ACCEPTCONN, &listening, &len)) 49 perror_msg_and_fail("getsockopt"); 50 51 return fd; 52 } 53
