[src/trunk]: src/tests/rump/rumpkern Disable module autoload so that it won't...

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

details:   https://anonhg.NetBSD.org/src/rev/daa6045f5ca4
branches:  trunk
changeset: 754469:daa6045f5ca4
user:      pooka <pooka%NetBSD.org@localhost>
date:      Sat May 01 11:20:21 2010 +0000

description:
Disable module autoload so that it won't foil our module unload test.

diffstat:

 tests/rump/rumpkern/t_modcmd.c |  59 +++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 58 insertions(+), 1 deletions(-)

diffs (87 lines):

diff -r f134d48e95fc -r daa6045f5ca4 tests/rump/rumpkern/t_modcmd.c
--- a/tests/rump/rumpkern/t_modcmd.c    Sat May 01 11:13:01 2010 +0000
+++ b/tests/rump/rumpkern/t_modcmd.c    Sat May 01 11:20:21 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_modcmd.c,v 1.5 2010/03/05 18:49:30 pooka Exp $       */
+/*     $NetBSD: t_modcmd.c,v 1.6 2010/05/01 11:20:21 pooka Exp $       */
 
 /*
  * Copyright (c) 2009 The NetBSD Foundation, Inc.
@@ -29,6 +29,7 @@
 
 #include <sys/types.h>
 #include <sys/mount.h>
+#include <sys/sysctl.h>
 
 #include <rump/rump.h>
 #include <rump/rump_syscalls.h>
@@ -59,6 +60,58 @@
            "a module (vfs/tmpfs) is possible");
 }
 
+static int
+disable_autoload(void)
+{
+       struct sysctlnode q, ans[256];
+       int mib[3];
+       size_t alen;
+       unsigned i;
+       bool no;
+
+       mib[0] = CTL_KERN;
+       mib[1] = CTL_QUERY;
+       alen = sizeof(ans);
+
+       memset(&q, 0, sizeof(q));
+       q.sysctl_flags = SYSCTL_VERSION;
+
+       if (rump_sys___sysctl(mib, 2, ans, &alen, &q, sizeof(q)) == -1)
+               return -1;
+
+       for (i = 0; i < __arraycount(ans); i++)
+               if (strcmp("module", ans[i].sysctl_name) == 0)
+                       break;
+       if (i == __arraycount(ans)) {
+               errno = ENOENT;
+               return -1;
+       }
+
+       mib[1] = ans[i].sysctl_num;
+       mib[2] = CTL_QUERY;
+
+       if (rump_sys___sysctl(mib, 3, ans, &alen, &q, sizeof(q)) == -1)
+               return errno;
+
+       for (i = 0; i < __arraycount(ans); i++)
+               if (strcmp("autoload", ans[i].sysctl_name) == 0)
+                       break;
+       if (i == __arraycount(ans)) {
+               errno = ENOENT;
+               return -1;
+       }
+
+       mib[2] = ans[i].sysctl_num;
+
+       no = false;
+       alen = 0;
+       if (rump_sys___sysctl(mib, 3, NULL, &alen, &no, sizeof(no)) == -1)
+               return errno;
+
+       return 0;
+
+}
+
 #define TMPFSMODULE "librumpfs_tmpfs.so"
 ATF_TC_BODY(cmsg_modcmd, tc)
 {
@@ -68,6 +121,10 @@
        int i, rv, loop = 0;
 
        rump_init();
+
+       if (disable_autoload() == -1)
+               atf_tc_fail_errno("count not disable module autoload");
+
        memset(&args, 0, sizeof(args));
        args.ta_version = TMPFS_ARGS_VERSION;
        args.ta_root_mode = 0777;