1 /* 2 * Copyright (c) 2017 JingPiao Chen <chenjingpiao (at) gmail.com> 3 * Copyright (c) 2017 The strace developers. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include "tests.h" 30 31 #ifdef HAVE_STRUCT_BR_PORT_MSG 32 33 # include <stdio.h> 34 # include <netinet/in.h> 35 # include "test_nlattr.h" 36 # include <linux/if_bridge.h> 37 # include <linux/rtnetlink.h> 38 39 static void 40 init_br_port_msg(struct nlmsghdr *const nlh, const unsigned int msg_len) 41 { 42 SET_STRUCT(struct nlmsghdr, nlh, 43 .nlmsg_len = msg_len, 44 .nlmsg_type = RTM_GETMDB, 45 .nlmsg_flags = NLM_F_DUMP 46 ); 47 48 struct br_port_msg *const msg = NLMSG_DATA(nlh); 49 SET_STRUCT(struct br_port_msg, msg, 50 .family = AF_UNIX, 51 .ifindex = ifindex_lo() 52 ); 53 } 54 55 static void 56 print_br_port_msg(const unsigned int msg_len) 57 { 58 printf("{len=%u, type=RTM_GETMDB, flags=NLM_F_DUMP" 59 ", seq=0, pid=0}, {family=AF_UNIX" 60 ", ifindex=" IFINDEX_LO_STR "}", 61 msg_len); 62 } 63 64 int 65 main(void) 66 { 67 skip_if_unavailable("/proc/self/fd/"); 68 69 const int fd = create_nl_socket(NETLINK_ROUTE); 70 71 const unsigned int hdrlen = sizeof(struct br_port_msg); 72 void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen)); 73 74 static char pattern[4096]; 75 fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1); 76 77 const unsigned int nla_type = 0xffff & NLA_TYPE_MASK; 78 char nla_type_str[256]; 79 sprintf(nla_type_str, "%#x /* MDBA_??? */", nla_type); 80 TEST_NLATTR_(fd, nlh0, hdrlen, 81 init_br_port_msg, print_br_port_msg, 82 nla_type, nla_type_str, 83 4, pattern, 4, 84 print_quoted_hex(pattern, 4)); 85 86 puts("+++ exited with 0 +++"); 87 return 0; 88 } 89 90 #else 91 92 SKIP_MAIN_UNDEFINED("HAVE_STRUCT_BR_PORT_MSG") 93 94 #endif 95
