1 /* $NetBSD: t_rnd.c,v 1.11 2017/04/16 18:24:23 riastradh 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 1.11 2017/04/16 18:24:23 riastradh 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 #include <unistd.h> 39 40 #include <rump/rump.h> 41 #include <rump/rump_syscalls.h> 42 43 #include "h_macros.h" 44 45 ATF_TC(RNDADDDATA); 46 ATF_TC_HEAD(RNDADDDATA, tc) 47 { 48 atf_tc_set_md_var(tc, "descr", 49 "Checks ioctl(RNDADDDATA) (PR kern/42020)"); 50 } 51 52 /* Adapted from example provided by Juho Salminen in the noted PR. */ 53 ATF_TC_BODY(RNDADDDATA, tc) 54 { 55 rnddata_t rd; 56 int fd; 57 58 rump_init(); 59 fd = rump_sys_open("/dev/random", O_RDWR, 0); 60 if (fd == -1) 61 atf_tc_fail_errno("cannot open /dev/random"); 62 63 rd.entropy = 1; 64 rd.len = 1; 65 if (rump_sys_ioctl(fd, RNDADDDATA, &rd) == -1) 66 atf_tc_fail_errno("RNDADDDATA"); 67 } 68 69 ATF_TC(RNDADDDATA2); 70 ATF_TC_HEAD(RNDADDDATA2, tc) 71 { 72 atf_tc_set_md_var(tc, "descr", "checks ioctl(RNDADDDATA) deals with " 73 "garbage len field"); 74 } 75 ATF_TC_BODY(RNDADDDATA2, tc) 76 { 77 rnddata_t rd; 78 int fd; 79 80 rump_init(); 81 fd = rump_sys_open("/dev/random", O_RDWR, 0); 82 if (fd == -1) 83 atf_tc_fail_errno("cannot open /dev/random"); 84 85 rd.entropy = 1; 86 rd.len = -1; 87 ATF_REQUIRE_ERRNO(EINVAL, rump_sys_ioctl(fd, RNDADDDATA, &rd) == -1); 88 } 89 90 ATF_TC(read_random); 91 ATF_TC_HEAD(read_random, tc) 92 { 93 atf_tc_set_md_var(tc, "descr", "does reading /dev/random return " 94 "within reasonable time"); 95 atf_tc_set_md_var(tc, "timeout", "10"); 96 } 97 98 ATF_TC_BODY(read_random, tc) 99 { 100 char buf[128]; 101 int fd; 102 unsigned i; 103 104 rump_init(); 105 for (i = 0; i < 1000; i++) { 106 alarm(2); 107 RL(fd = rump_sys_open("/dev/random", RUMP_O_RDONLY)); 108 RL(rump_sys_read(fd, buf, sizeof(buf))); 109 RZ(rump_sys_close(fd)); 110 } 111 } 112 113 ATF_TP_ADD_TCS(tp) 114 { 115 ATF_TP_ADD_TC(tp, RNDADDDATA); 116 ATF_TP_ADD_TC(tp, RNDADDDATA2); 117 ATF_TP_ADD_TC(tp, read_random); 118 119 return atf_no_error(); 120 } 121