1 /* 2 * Copyright (c) 2017 JingPiao Chen <chenjingpiao@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_GNET_STATS_BASIC 32 33 # include <stdio.h> 34 # include <stddef.h> 35 # include "test_nlattr.h" 36 # include <linux/gen_stats.h> 37 # include <linux/rtnetlink.h> 38 39 const unsigned int hdrlen = sizeof(struct tcmsg); 40 41 static void 42 init_tcmsg(struct nlmsghdr *const nlh, const unsigned int msg_len) 43 { 44 SET_STRUCT(struct nlmsghdr, nlh, 45 .nlmsg_len = msg_len, 46 .nlmsg_type = RTM_GETQDISC, 47 .nlmsg_flags = NLM_F_DUMP 48 ); 49 50 struct tcmsg *const msg = NLMSG_DATA(nlh); 51 SET_STRUCT(struct tcmsg, msg, 52 .tcm_family = AF_UNIX, 53 .tcm_ifindex = ifindex_lo() 54 ); 55 56 struct nlattr *const nla = NLMSG_ATTR(nlh, sizeof(*msg)); 57 SET_STRUCT(struct nlattr, nla, 58 .nla_len = msg_len - NLMSG_SPACE(hdrlen), 59 .nla_type = TCA_STATS2 60 ); 61 } 62 63 static void 64 print_tcmsg(const unsigned int msg_len) 65 { 66 printf("{len=%u, type=RTM_GETQDISC, flags=NLM_F_DUMP" 67 ", seq=0, pid=0}, {tcm_family=AF_UNIX" 68 ", tcm_ifindex=" IFINDEX_LO_STR 69 ", tcm_handle=0, tcm_parent=0, tcm_info=0}" 70 ", {{nla_len=%u, nla_type=TCA_STATS2}", 71 msg_len, msg_len - NLMSG_SPACE(hdrlen)); 72 } 73 74 int 75 main(void) 76 { 77 skip_if_unavailable("/proc/self/fd/"); 78 79 const int fd = create_nl_socket(NETLINK_ROUTE); 80 void *nlh0 = tail_alloc(NLMSG_SPACE(hdrlen)); 81 82 static char pattern[4096]; 83 fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1); 84 85 static const struct gnet_stats_basic sb = { 86 .bytes = 0xabcdebdafefeadeb, 87 .packets = 0xbdcdeabf 88 }; 89 char buf[offsetofend(struct gnet_stats_basic, packets)]; 90 memcpy(buf, &sb, sizeof(buf)); 91 TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen, 92 init_tcmsg, print_tcmsg, 93 TCA_STATS_BASIC, pattern, buf, 94 PRINT_FIELD_U("{", sb, bytes); 95 PRINT_FIELD_U(", ", sb, packets); 96 printf("}")); 97 98 #ifdef HAVE_STRUCT_GNET_STATS_RATE_EST 99 static const struct gnet_stats_rate_est est = { 100 .bps = 0xebcdaebd, 101 .pps = 0xabdceade, 102 }; 103 TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen, 104 init_tcmsg, print_tcmsg, 105 TCA_STATS_RATE_EST, pattern, est, 106 PRINT_FIELD_U("{", est, bps); 107 PRINT_FIELD_U(", ", est, pps); 108 printf("}")); 109 #endif 110 111 #ifdef HAVE_STRUCT_GNET_STATS_QUEUE 112 static const struct gnet_stats_queue qstats = { 113 .qlen = 0xabcdeabd, 114 .backlog = 0xbcdaebad, 115 .drops = 0xcdbeaedb, 116 .requeues = 0xdebaefab, 117 .overlimits = 0xefaebade 118 }; 119 TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen, 120 init_tcmsg, print_tcmsg, 121 TCA_STATS_QUEUE, pattern, qstats, 122 PRINT_FIELD_U("{", qstats, qlen); 123 PRINT_FIELD_U(", ", qstats, backlog); 124 PRINT_FIELD_U(", ", qstats, drops); 125 PRINT_FIELD_U(", ", qstats, requeues); 126 PRINT_FIELD_U(", ", qstats, overlimits); 127 printf("}")); 128 #endif 129 130 #ifdef HAVE_STRUCT_GNET_STATS_RATE_EST64 131 static const struct gnet_stats_rate_est64 est64 = { 132 .bps = 0xacbdcdefafecaebf, 133 .pps = 0xcdabeabdfeabceaf 134 }; 135 TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen, 136 init_tcmsg, print_tcmsg, 137 TCA_STATS_RATE_EST64, pattern, est64, 138 PRINT_FIELD_U("{", est64, bps); 139 PRINT_FIELD_U(", ", est64, pps); 140 printf("}")); 141 #endif 142 143 puts("+++ exited with 0 +++"); 144 return 0; 145 } 146 147 #else 148 149 SKIP_MAIN_UNDEFINED("HAVE_STRUCT_GNET_STATS_BASIC") 150 151 #endif 152