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 #include <stdio.h> 32 #include "netlink.h" 33 #include <linux/rtnetlink.h> 34 35 #ifdef RTM_GETNSID 36 37 # include "test_nlattr.h" 38 39 static void 40 init_rtgenmsg(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_GETNSID, 45 .nlmsg_flags = NLM_F_DUMP 46 ); 47 48 struct rtgenmsg *const msg = NLMSG_DATA(nlh); 49 SET_STRUCT(struct rtgenmsg, msg, 50 .rtgen_family = AF_UNIX 51 ); 52 } 53 54 static void 55 print_rtgenmsg(const unsigned int msg_len) 56 { 57 printf("{len=%u, type=RTM_GETNSID, flags=NLM_F_DUMP" 58 ", seq=0, pid=0}, {rtgen_family=AF_UNIX}", 59 msg_len); 60 } 61 62 int 63 main(void) 64 { 65 skip_if_unavailable("/proc/self/fd/"); 66 67 const int fd = create_nl_socket(NETLINK_ROUTE); 68 const unsigned int hdrlen = sizeof(struct rtgenmsg); 69 void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen)); 70 71 static char pattern[4096]; 72 fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1); 73 74 const unsigned int nla_type = 0xffff & NLA_TYPE_MASK; 75 char nla_type_str[256]; 76 sprintf(nla_type_str, "%#x /* NETNSA_??? */", nla_type); 77 TEST_NLATTR_(fd, nlh0, hdrlen, 78 init_rtgenmsg, print_rtgenmsg, 79 nla_type, nla_type_str, 80 4, pattern, 4, 81 print_quoted_hex(pattern, 4)); 82 83 puts("+++ exited with 0 +++"); 84 return 0; 85 } 86 87 #else 88 89 SKIP_MAIN_UNDEFINED("RTM_GETNSID") 90 91 #endif 92
