[src/trunk]: src/tests/kernel Add test case for suspected reason behind kerne...

[pooka <pooka%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/32308bd349f2
branches:  trunk
changeset: 759262:32308bd349f2
user:      pooka <pooka%NetBSD.org@localhost>
date:      Sat Dec 04 17:38:42 2010 +0000

description:
Add test case for suspected reason behind kernel panic described
in PR kern/44190

diffstat:

 tests/kernel/t_rnd.c |  27 +++++++++++++++++++++++++--
 1 files changed, 25 insertions(+), 2 deletions(-)

diffs (51 lines):

diff -r 4df144b8fa40 -r 32308bd349f2 tests/kernel/t_rnd.c
--- a/tests/kernel/t_rnd.c      Sat Dec 04 16:04:45 2010 +0000
+++ b/tests/kernel/t_rnd.c      Sat Dec 04 17:38:42 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_rnd.c,v 1.1 2009/09/08 20:37:45 pooka Exp $  */
+/*     $NetBSD: t_rnd.c,v 1.2 2010/12/04 17:38:42 pooka Exp $  */
 
 /*
  * Copyright (c) 2009 The NetBSD Foundation, Inc.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: t_rnd.c,v 1.1 2009/09/08 20:37:45 pooka Exp $");
+__RCSID("$NetBSD: t_rnd.c,v 1.2 2010/12/04 17:38:42 pooka Exp $");
 
 #include <sys/types.h>
 #include <sys/fcntl.h>
@@ -64,9 +64,32 @@
                atf_tc_fail_errno("RNDADDDATA");
 }
 
+ATF_TC(RNDADDDATA2);
+ATF_TC_HEAD(RNDADDDATA2, tc)
+{
+       atf_tc_set_md_var(tc, "descr", "checks ioctl(RNDADDDATA) deals with "
+           "garbage len field");
+}
+ATF_TC_BODY(RNDADDDATA2, tc)
+{
+       rnddata_t rd;
+       int fd;
+
+       rump_init();
+       fd = rump_sys_open("/dev/random", O_RDWR, 0);
+       if (fd == -1)
+               atf_tc_fail_errno("cannot open /dev/random");
+               
+       rd.entropy = 1;
+       rd.len = -1;
+       atf_tc_expect_signal(-1, "PR kern/44190");
+       ATF_REQUIRE_ERRNO(E2BIG, rump_sys_ioctl(fd, RNDADDDATA, &rd) == -1);
+}
+
 ATF_TP_ADD_TCS(tp)
 {
        ATF_TP_ADD_TC(tp, RNDADDDATA);
+       ATF_TP_ADD_TC(tp, RNDADDDATA2);
 
        return atf_no_error();
 }