1 /*- 2 * Copyright (c) 2016 Chelsio Communications, Inc. 3 * All rights reserved. 4 * Written by: John Baldwin <jhb@FreeBSD.org> 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 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #ifndef _AIO_TEST_LOCAL_H_ 29 #define _AIO_TEST_LOCAL_H_ 30 31 #include <sys/types.h> 32 #include <sys/sysctl.h> 33 #include <errno.h> 34 #include <stdio.h> 35 #include <string.h> 36 #include <unistd.h> 37 38 #include <atf-c.h> 39 40 static const char *sysctl_oid_name = "vfs.aio.enable_unsafe"; 41 42 static int 43 is_unsafe_aio_enabled(void) 44 { 45 size_t len; 46 int unsafe; 47 48 len = sizeof(unsafe); 49 if (sysctlbyname(sysctl_oid_name, &unsafe, &len, NULL, 0) < 0) { 50 if (errno == ENOENT) 51 return (-1); 52 return (0); 53 } 54 return (unsafe == 0 ? 0 : 1); 55 } 56 57 #define ATF_REQUIRE_UNSAFE_AIO() do { \ 58 switch (is_unsafe_aio_enabled()) { \ 59 case -1: \ 60 atf_libc_error(errno, "Failed to read %s", sysctl_oid_name); \ 61 break; \ 62 case 0: \ 63 atf_tc_skip("Unsafe AIO is disabled"); \ 64 break; \ 65 default: \ 66 printf("Unsafe AIO is enabled\n"); \ 67 break; \ 68 } \ 69 } while (0) 70 71 #define PLAIN_REQUIRE_UNSAFE_AIO(_exit_code) do { \ 72 switch (is_unsafe_aio_enabled()) { \ 73 case -1: \ 74 printf("Failed to read %s", sysctl_oid_name); \ 75 _exit(_exit_code); \ 76 break; \ 77 case 0: \ 78 printf("Unsafe AIO is disabled\n"); \ 79 _exit(_exit_code); \ 80 break; \ 81 default: \ 82 printf("Unsafe AIO is enabled\n"); \ 83 break; \ 84 } \ 85 } while (0) 86 87 #endif /* !_AIO_TEST_LOCAL_H_ */ 88