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 "test_nlattr.h" 33 #include <linux/rtnetlink.h> 34 35 static void 36 init_tcamsg(struct nlmsghdr *const nlh, const unsigned int msg_len) 37 { 38 SET_STRUCT(struct nlmsghdr, nlh, 39 .nlmsg_len = msg_len, 40 .nlmsg_type = RTM_GETACTION, 41 .nlmsg_flags = NLM_F_DUMP 42 ); 43 44 struct tcamsg *const msg = NLMSG_DATA(nlh); 45 SET_STRUCT(struct tcamsg, msg, 46 .tca_family = AF_INET 47 ); 48 } 49 50 static void 51 print_tcamsg(const unsigned int msg_len) 52 { 53 printf("{len=%u, type=RTM_GETACTION, flags=NLM_F_DUMP" 54 ", seq=0, pid=0}, {tca_family=AF_INET}", 55 msg_len); 56 } 57 58 int 59 main(void) 60 { 61 skip_if_unavailable("/proc/self/fd/"); 62 63 const int fd = create_nl_socket(NETLINK_ROUTE); 64 const unsigned int hdrlen = sizeof(struct tcamsg); 65 void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen)); 66 67 static char pattern[4096]; 68 fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1); 69 70 const unsigned int nla_type = 0xffff & NLA_TYPE_MASK; 71 char nla_type_str[256]; 72 sprintf(nla_type_str, "%#x /* TCA_ACT_??? */", nla_type); 73 TEST_NLATTR_(fd, nlh0, hdrlen, 74 init_tcamsg, print_tcamsg, 75 nla_type, nla_type_str, 76 4, pattern, 4, 77 print_quoted_hex(pattern, 4)); 78 79 puts("+++ exited with 0 +++"); 80 return 0; 81 } 82
