1 /* $NetBSD: t_rnd.c,v 1.10 2017/01/13 21:30:41 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __RCSID("$NetBSD: t_rnd.c,v 1.10 2017/01/13 21:30:41 christos Exp $"); 31 32 #include <sys/types.h> 33 #include <sys/fcntl.h> 34 #include <sys/ioctl.h> 35 #include <sys/rndio.h> 36 37 #include <atf-c.h> 38 39 #include <rump/rump.h> 40 #include <rump/rump_syscalls.h> 41 42 #include "h_macros.h" 43 44 ATF_TC(RNDADDDATA); 45 ATF_TC_HEAD(RNDADDDATA, tc) 46 { 47 atf_tc_set_md_var(tc, "descr", 48 "Checks ioctl(RNDADDDATA) (PR kern/42020)"); 49 } 50 51 /* Adapted from example provided by Juho Salminen in the noted PR. */ 52 ATF_TC_BODY(RNDADDDATA, tc) 53 { 54 rnddata_t rd; 55 int fd; 56 57 rump_init(); 58 fd = rump_sys_open("/dev/random", O_RDWR, 0); 59 if (fd == -1) 60 atf_tc_fail_errno("cannot open /dev/random"); 61 62 rd.entropy = 1; 63 rd.len = 1; 64 if (rump_sys_ioctl(fd, RNDADDDATA, &rd) == -1) 65 atf_tc_fail_errno("RNDADDDATA"); 66 } 67 68 ATF_TC(RNDADDDATA2); 69 ATF_TC_HEAD(RNDADDDATA2, tc) 70 { 71 atf_tc_set_md_var(tc, "descr", "checks ioctl(RNDADDDATA) deals with " 72 "garbage len field"); 73 } 74 ATF_TC_BODY(RNDADDDATA2, tc) 75 { 76 rnddata_t rd; 77 int fd; 78 79 rump_init(); 80 fd = rump_sys_open("/dev/random", O_RDWR, 0); 81 if (fd == -1) 82 atf_tc_fail_errno("cannot open /dev/random"); 83 84 rd.entropy = 1; 85 rd.len = -1; 86 ATF_REQUIRE_ERRNO(EINVAL, rump_sys_ioctl(fd, RNDADDDATA, &rd) == -1); 87 } 88 89 ATF_TC(read_random); 90 ATF_TC_HEAD(read_random, tc) 91 { 92 atf_tc_set_md_var(tc, "descr", "does reading /dev/random return " 93 "within reasonable time"); 94 atf_tc_set_md_var(tc, "timeout", "10"); 95 } 96 97 ATF_TC_BODY(read_random, tc) 98 { 99 char buf[128]; 100 int fd; 101 102 rump_init(); 103 RL(fd = rump_sys_open("/dev/random", O_RDONLY)); 104 RL(rump_sys_read(fd, buf, sizeof(buf))); 105 } 106 107 ATF_TP_ADD_TCS(tp) 108 { 109 ATF_TP_ADD_TC(tp, RNDADDDATA); 110 ATF_TP_ADD_TC(tp, RNDADDDATA2); 111 ATF_TP_ADD_TC(tp, read_random); 112 113 return atf_no_error(); 114 } 115