1 /* 2 * netlink attribute ifinfomsg common code. 3 * 4 * Copyright (c) 2017 JingPiao Chen <chenjingpiao (at) gmail.com> 5 * Copyright (c) 2017-2018 The strace developers. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef STRACE_TESTS_NLATTR_IFLA_H 32 #define STRACE_TESTS_NLATTR_IFLA_H 33 34 #include "tests.h" 35 36 #ifndef IFLA_ATTR 37 # error "Please define IFLA_ATTR before including this file" 38 #endif 39 40 static const unsigned int hdrlen = sizeof(struct ifinfomsg); 41 42 static void 43 init_ifinfomsg(struct nlmsghdr *const nlh, const unsigned int msg_len) 44 { 45 SET_STRUCT(struct nlmsghdr, nlh, 46 .nlmsg_len = msg_len, 47 .nlmsg_type = RTM_GETLINK, 48 .nlmsg_flags = NLM_F_DUMP 49 ); 50 51 struct ifinfomsg *const msg = NLMSG_DATA(nlh); 52 SET_STRUCT(struct ifinfomsg, msg, 53 .ifi_family = AF_UNIX, 54 .ifi_type = ARPHRD_LOOPBACK, 55 .ifi_index = ifindex_lo(), 56 .ifi_flags = IFF_UP, 57 ); 58 59 struct nlattr *const nla = NLMSG_ATTR(nlh, sizeof(*msg)); 60 SET_STRUCT(struct nlattr, nla, 61 .nla_len = msg_len - NLMSG_SPACE(hdrlen), 62 .nla_type = IFLA_ATTR 63 ); 64 } 65 66 static void 67 print_ifinfomsg(const unsigned int msg_len) 68 { 69 printf("{len=%u, type=RTM_GETLINK, flags=NLM_F_DUMP" 70 ", seq=0, pid=0}, {ifi_family=AF_UNIX" 71 ", ifi_type=ARPHRD_LOOPBACK" 72 ", ifi_index=" IFINDEX_LO_STR 73 ", ifi_flags=IFF_UP, ifi_change=0}" 74 ", {{nla_len=%u, nla_type=" STRINGIFY_VAL(IFLA_ATTR) "}", 75 msg_len, msg_len - NLMSG_SPACE(hdrlen)); 76 } 77 78 #endif /* STRACE_TESTS_NLATTR_IFLA_H */ 79
