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 <string.h> 33 #include <stdint.h> 34 #include <sys/sysmacros.h> 35 #include <netinet/tcp.h> 36 #include "test_nlattr.h" 37 #include <linux/sock_diag.h> 38 #include <linux/unix_diag.h> 39 40 static void 41 init_unix_diag_msg(struct nlmsghdr *const nlh, const unsigned int msg_len) 42 { 43 SET_STRUCT(struct nlmsghdr, nlh, 44 .nlmsg_len = msg_len, 45 .nlmsg_type = SOCK_DIAG_BY_FAMILY, 46 .nlmsg_flags = NLM_F_DUMP 47 ); 48 49 struct unix_diag_msg *const msg = NLMSG_DATA(nlh); 50 SET_STRUCT(struct unix_diag_msg, msg, 51 .udiag_family = AF_UNIX, 52 .udiag_type = SOCK_STREAM, 53 .udiag_state = TCP_ESTABLISHED 54 ); 55 } 56 57 static void 58 print_unix_diag_msg(const unsigned int msg_len) 59 { 60 printf("{len=%u, type=SOCK_DIAG_BY_FAMILY" 61 ", flags=NLM_F_DUMP, seq=0, pid=0}, {udiag_family=AF_UNIX" 62 ", udiag_type=SOCK_STREAM, udiag_state=TCP_ESTABLISHED" 63 ", udiag_ino=0, udiag_cookie=[0, 0]}", 64 msg_len); 65 } 66 67 static void 68 print_uint(const unsigned int *p) 69 { 70 printf("%u", *p); 71 } 72 73 int 74 main(void) 75 { 76 skip_if_unavailable("/proc/self/fd/"); 77 78 const int fd = create_nl_socket(NETLINK_SOCK_DIAG); 79 const unsigned int hdrlen = sizeof(struct unix_diag_msg); 80 void *const 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 unix_diag_vfs uv = { 86 .udiag_vfs_dev = 0xabcddafa, 87 .udiag_vfs_ino = 0xbafabcda 88 }; 89 TEST_NLATTR_OBJECT(fd, nlh0, hdrlen, 90 init_unix_diag_msg, print_unix_diag_msg, 91 UNIX_DIAG_VFS, pattern, uv, 92 printf("{udiag_vfs_dev=makedev(%u, %u)", 93 major(uv.udiag_vfs_dev), 94 minor(uv.udiag_vfs_dev)); 95 PRINT_FIELD_U(", ", uv, udiag_vfs_ino); 96 printf("}")); 97 98 static const struct unix_diag_rqlen rql = { 99 .udiag_rqueue = 0xfabdcdad, 100 .udiag_wqueue = 0xbacdadcf 101 }; 102 TEST_NLATTR_OBJECT(fd, nlh0, hdrlen, 103 init_unix_diag_msg, print_unix_diag_msg, 104 UNIX_DIAG_RQLEN, pattern, rql, 105 PRINT_FIELD_U("{", rql, udiag_rqueue); 106 PRINT_FIELD_U(", ", rql, udiag_wqueue); 107 printf("}")); 108 109 static const uint32_t inode[] = { 0xadbcadbc, 0xfabdcdac }; 110 TEST_NLATTR_ARRAY(fd, nlh0, hdrlen, 111 init_unix_diag_msg, print_unix_diag_msg, 112 UNIX_DIAG_ICONS, pattern, inode, print_uint); 113 114 puts("+++ exited with 0 +++"); 115 return 0; 116 } 117
