tests/kernel/t_rnd.c

   1 /*      $NetBSD: t_rnd.c,v 1.5 2012/03/18 09:46:50 jruoho 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 1.5 2012/03/18 09:46:50 jruoho Exp $");
  31
  32 #include <sys/types.h>
  33 #include <sys/fcntl.h>
  34 #include <sys/ioctl.h>
  35 #include <sys/rnd.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_TP_ADD_TCS(tp)
  90 {
  91         ATF_TP_ADD_TC(tp, RNDADDDATA);
  92         ATF_TP_ADD_TC(tp, RNDADDDATA2);
  93
  94         return atf_no_error();
  95 }