Move OS-dependent files to grub-core/osdep and document it.

2013-10-08 17:30:22 +02:00 · 2013-10-08 17:30:22 +02:00 · 672fa55e81
commit 672fa55e81
parent a5b0365ab2
30 changed files with 39 additions and 30 deletions
--- a/grub-core/osdep/bsd/hostdisk.c
+++ b/grub-core/osdep/bsd/hostdisk.c
@ -0,0 +1,115 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 1999,2000,2001,2002,2003,2004,2006,2007,2008,2009,2010,2011,2012,2013  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config-util.h>
+
+#include <grub/disk.h>
+#include <grub/partition.h>
+#include <grub/msdos_partition.h>
+#include <grub/types.h>
+#include <grub/err.h>
+#include <grub/emu/misc.h>
+#include <grub/emu/hostdisk.h>
+#include <grub/emu/getroot.h>
+#include <grub/misc.h>
+#include <grub/i18n.h>
+#include <grub/list.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <assert.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <limits.h>
+
+# include <sys/ioctl.h>
+# include <sys/disklabel.h>    /* struct disklabel */
+# include <sys/disk.h>    /* struct dkwedge_info */
+# ifdef HAVE_GETRAWPARTITION
+#  include <util.h>    /* getrawpartition */
+# endif /* HAVE_GETRAWPARTITION */
+# if defined(__NetBSD__)
+# include <sys/fdio.h>
+# endif
+# if defined(__OpenBSD__)
+# include <sys/dkio.h>
+# endif
+
+#if defined(__NetBSD__)
+/* Adjust device driver parameters.  This function should be called just
+   after successfully opening the device.  For now, it simply prevents the
+   floppy driver from retrying operations on failure, as otherwise the
+   driver takes a while to abort when there is no floppy in the drive.  */
+void
+grub_hostdisk_configure_device_driver (grub_util_fd_t fd)
+{
+  struct stat st;
+
+  if (fstat (fd, &st) < 0 || ! S_ISCHR (st.st_mode))
+    return;
+  if (major(st.st_rdev) == RAW_FLOPPY_MAJOR)
+    {
+      int floppy_opts;
+
+      if (ioctl (fd, FDIOCGETOPTS, &floppy_opts) == -1)
+	return;
+      floppy_opts |= FDOPT_NORETRY;
+      if (ioctl (fd, FDIOCSETOPTS, &floppy_opts) == -1)
+	return;
+    }
+}
+#else
+void
+grub_hostdisk_configure_device_driver (grub_util_fd_t fd __attribute__ ((unused)))
+{
+}
+#endif
+
+grub_int64_t
+grub_util_get_fd_size_os (grub_util_fd_t fd, const char *name, unsigned *log_secsize)
+{
+  struct disklabel label;
+  unsigned sector_size, log_sector_size;
+
+  grub_hostdisk_configure_device_driver (fd);
+  
+  if (ioctl (fd, DIOCGDINFO, &label) == -1)
+    return -1;
+
+  sector_size = label.d_secsize;
+  if (sector_size & (sector_size - 1) || !sector_size)
+    return -1;
+  for (log_sector_size = 0;
+       (1 << log_sector_size) < sector_size;
+       log_sector_size++);
+
+  if (log_secsize)
+    *log_secsize = log_sector_size;
+
+  return (grub_uint64_t) label.d_secperunit << log_sector_size;
+}
+
+void
+grub_hostdisk_flush_initial_buffer (const char *os_dev __attribute__ ((unused)))
+{
+}