[2105] 2009-04-14 Felix Zielcke <[email protected]>

Revision: 2105
          http://svn.sv.gnu.org/viewvc/?view=rev&root=grub&revision=2105
Author:   fzielcke
Date:     2009-04-14 07:01:34 +0000 (Tue, 14 Apr 2009)
Log Message:
-----------
2009-04-14  Felix Zielcke  <[email protected]>

	* util/hostdisk.c [__FreeBSD__ || __FreeBSD_kernel__]: Include
	<sys/param.h> and <sys/sysctl.h>.
	(open_device) [__FreeBSD__ || __FreeBSD_kernel_]: Use sysctlgetbyname()
	to add 0x10 to `kern.geom.debugflags' if it's not already set, before
	opening the device and reset them afterwards.

Modified Paths:
--------------
    trunk/grub2/ChangeLog
    trunk/grub2/util/hostdisk.c

Modified: trunk/grub2/ChangeLog
===================================================================
--- trunk/grub2/ChangeLog	2009-04-14 01:54:06 UTC (rev 2104)
+++ trunk/grub2/ChangeLog	2009-04-14 07:01:34 UTC (rev 2105)
@@ -1,3 +1,11 @@
+2009-04-14  Felix Zielcke  <[email protected]>
+
+	* util/hostdisk.c [__FreeBSD__ || __FreeBSD_kernel__]: Include
+	<sys/param.h> and <sys/sysctl.h>.
+	(open_device) [__FreeBSD__ || __FreeBSD_kernel_]: Use sysctlgetbyname()
+	to add 0x10 to `kern.geom.debugflags' if it's not already set, before
+	opening the device and reset them afterwards.
+
 2009-04-13  Pavel Roskin  <[email protected]>
 
 	* conf/common.rmk (grub_fstest_SOURCES): Add normal/datetime.c.

Modified: trunk/grub2/util/hostdisk.c
===================================================================
--- trunk/grub2/util/hostdisk.c	2009-04-14 01:54:06 UTC (rev 2104)
+++ trunk/grub2/util/hostdisk.c	2009-04-14 07:01:34 UTC (rev 2105)
@@ -88,6 +88,8 @@
 
 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
 # include <sys/disk.h> /* DIOCGMEDIASIZE */
+# include <sys/param.h>
+# include <sys/sysctl.h>
 #endif
 
 struct
@@ -340,7 +342,35 @@
       sector -= disk->partition->start;
   }
 #else /* ! __linux__ */
+#if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
+  int sysctl_flags, sysctl_oldflags;
+  const size_t sysctl_size = sizeof (sysctl_flags);
+
+  if (sysctlbyname ("kern.geom.debugflags", &sysctl_oldflags, &sysctl_size, NULL, 0))
+    {
+      grub_error (GRUB_ERR_BAD_DEVICE, "cannot get current flags of sysctl kern.geom.debugflags");
+      return -1;
+    }
+  sysctl_flags = sysctl_oldflags | 0x10;
+  if (! (sysctl_oldflags & 0x10)
+      && sysctlbyname ("kern.geom.debugflags", NULL , 0, &sysctl_flags, sysctl_size))
+    {
+      grub_error (GRUB_ERR_BAD_DEVICE, "cannot set flags of sysctl kern.geom.debugflags");
+      return -1;
+    }
+#endif
+
   fd = open (map[disk->id].device, flags);
+
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+  if (! (sysctl_oldflags & 0x10)
+      && sysctlbyname ("kern.geom.debugflags", NULL , 0, &sysctl_oldflags, sysctl_size))
+    {
+      grub_error (GRUB_ERR_BAD_DEVICE, "cannot set flags back to the old value for sysctl kern.geom.debugflags");
+      return -1;
+    }
+#endif
+
   if (fd < 0)
     {
       grub_error (GRUB_ERR_BAD_DEVICE, "cannot open `%s' in open_device()", map[disk->id].device);