Adding upstream version 2.06.upstream/2.06upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 441 insertions, 0 deletions

diff --git a/grub-core/fs/zfs/zfsinfo.c b/grub-core/fs/zfs/zfsinfo.c
new file mode 100644
index 0000000..bf29180
--- /dev/null
+++ b/grub-core/fs/zfs/zfsinfo.c
@@ -0,0 +1,441 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 1999,2000,2001,2002,2003,2004,2009  Free Software Foundation, Inc.
+ *  Copyright 2008  Sun Microsystems, 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 <grub/zfs/zfs.h>
+#include <grub/device.h>
+#include <grub/file.h>
+#include <grub/command.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/dl.h>
+#include <grub/env.h>
+#include <grub/i18n.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+static inline void
+print_tabs (int n)
+{
+  int i;
+
+  for (i = 0; i < n; i++)
+    grub_printf (" ");
+}
+
+static grub_err_t
+print_state (char *nvlist, int tab)
+{
+  grub_uint64_t ival;
+  int isok = 1;
+
+  print_tabs (tab);
+
+  if (grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_REMOVED, &ival))
+    {
+      grub_puts_ (N_("Virtual device is removed"));
+      isok = 0;
+    }
+
+  if (grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_FAULTED, &ival))
+    {
+      grub_puts_ (N_("Virtual device is faulted"));
+      isok = 0;
+    }
+
+  if (grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_OFFLINE, &ival))
+    {
+      grub_puts_ (N_("Virtual device is offline"));
+      isok = 0;
+    }
+
+  if (grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_FAULTED, &ival))
+    /* TRANSLATORS: degraded doesn't mean broken but that some of
+       component are missing but virtual device as whole is still usable.  */
+    grub_puts_ (N_("Virtual device is degraded"));
+
+  if (isok)
+    grub_puts_ (N_("Virtual device is online"));
+  grub_xputs ("\n");
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+print_vdev_info (char *nvlist, int tab)
+{
+  char *type = 0;
+
+  type = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_TYPE);
+
+  if (!type)
+    {
+      print_tabs (tab);
+      grub_puts_ (N_("Incorrect virtual device: no type available"));
+      return grub_errno;
+    }
+
+  if (grub_strcmp (type, VDEV_TYPE_DISK) == 0)
+    {
+      char *bootpath = 0;
+      char *path = 0;
+      char *devid = 0;
+
+      print_tabs (tab);
+      /* TRANSLATORS: The virtual devices form a tree (in graph-theoretical
+	 sense). The nodes like mirror or raidz have children: member devices.
+	 The "real" devices which actually store data are called "leafs"
+	 (again borrowed from graph theory) and can be either disks
+	 (or partitions) or files.  */
+      grub_puts_ (N_("Leaf virtual device (file or disk)"));
+
+      print_state (nvlist, tab);
+
+      bootpath =
+	grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_PHYS_PATH);
+      print_tabs (tab);
+      if (!bootpath)
+	grub_puts_ (N_("Bootpath: unavailable\n"));
+      else
+	grub_printf_ (N_("Bootpath: %s\n"), bootpath);
+
+      path = grub_zfs_nvlist_lookup_string (nvlist, "path");
+      print_tabs (tab);
+      if (!path)
+	grub_puts_ (N_("Path: unavailable"));
+      else
+	grub_printf_ (N_("Path: %s\n"), path);
+
+      devid = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_DEVID);
+      print_tabs (tab);
+      if (!devid)
+	grub_puts_ (N_("Devid: unavailable"));
+      else
+	grub_printf_ (N_("Devid: %s\n"), devid);
+      grub_free (bootpath);
+      grub_free (devid);
+      grub_free (path);
+      grub_free (type);
+      return GRUB_ERR_NONE;
+    }
+  char is_mirror=(grub_strcmp(type,VDEV_TYPE_MIRROR) == 0);
+  char is_raidz=(grub_strcmp(type,VDEV_TYPE_RAIDZ) == 0);
+  grub_free (type);
+
+  if (is_mirror || is_raidz)
+    {
+      int nelm, i;
+
+      nelm = grub_zfs_nvlist_lookup_nvlist_array_get_nelm
+	(nvlist, ZPOOL_CONFIG_CHILDREN);
+
+      if(is_mirror){
+	 grub_puts_ (N_("This VDEV is a mirror"));
+      }
+      else if(is_raidz){
+	 grub_uint64_t parity;
+	 grub_zfs_nvlist_lookup_uint64(nvlist,"nparity",&parity);
+	 grub_printf_ (N_("This VDEV is a RAIDZ%llu\n"),(unsigned long long)parity);
+      }
+      print_tabs (tab);
+      if (nelm <= 0)
+	{
+	  grub_puts_ (N_("Incorrect VDEV"));
+	  return GRUB_ERR_NONE;
+	}
+      grub_printf_ (N_("VDEV with %d children\n"), nelm);
+      print_state (nvlist, tab);
+      for (i = 0; i < nelm; i++)
+	{
+	  char *child;
+
+	  child = grub_zfs_nvlist_lookup_nvlist_array
+	    (nvlist, ZPOOL_CONFIG_CHILDREN, i);
+
+	  print_tabs (tab);
+	  if (!child)
+	    {
+	      /* TRANSLATORS: it's the element carying the number %d, not
+		 total element number. And the number itself is fine,
+		 only the element isn't.
+	      */
+	      grub_printf_ (N_("VDEV element number %d isn't correct\n"), i);
+	      continue;
+	    }
+
+	  /* TRANSLATORS: it's the element carying the number %d, not
+	     total element number. This is used in enumeration
+	     "Element number 1", "Element number 2", ... */
+	  grub_printf_ (N_("VDEV element number %d:\n"), i);
+	  print_vdev_info (child, tab + 1);
+
+	  grub_free (child);
+	}
+      return GRUB_ERR_NONE;
+    }
+
+  print_tabs (tab);
+  grub_printf_ (N_("Unknown virtual device type: %s\n"), type);
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+get_bootpath (char *nvlist, char **bootpath, char **devid)
+{
+  char *type = 0;
+
+  type = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_TYPE);
+
+  if (!type)
+    return grub_errno;
+
+  if (grub_strcmp (type, VDEV_TYPE_DISK) == 0)
+    {
+      *bootpath = grub_zfs_nvlist_lookup_string (nvlist,
+						 ZPOOL_CONFIG_PHYS_PATH);
+      *devid = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_DEVID);
+      if (!*bootpath || !*devid)
+	{
+	  grub_free (*bootpath);
+	  grub_free (*devid);
+	  *bootpath = 0;
+	  *devid = 0;
+	}
+      return GRUB_ERR_NONE;
+    }
+
+  if (grub_strcmp (type, VDEV_TYPE_MIRROR) == 0)
+    {
+      int nelm, i;
+
+      nelm = grub_zfs_nvlist_lookup_nvlist_array_get_nelm
+	(nvlist, ZPOOL_CONFIG_CHILDREN);
+
+      for (i = 0; i < nelm; i++)
+	{
+	  char *child;
+
+	  child = grub_zfs_nvlist_lookup_nvlist_array (nvlist,
+						       ZPOOL_CONFIG_CHILDREN,
+						       i);
+
+	  get_bootpath (child, bootpath, devid);
+
+	  grub_free (child);
+
+	  if (*bootpath && *devid)
+	    return GRUB_ERR_NONE;
+	}
+    }
+
+  return GRUB_ERR_NONE;
+}
+
+static const char *poolstates[] = {
+  /* TRANSLATORS: Here we speak about ZFS pools it's semi-marketing,
+     semi-technical term by Sun/Oracle and should be translated in sync with
+     other ZFS-related software and documentation.  */
+  [POOL_STATE_ACTIVE] = N_("Pool state: active"),
+  [POOL_STATE_EXPORTED] = N_("Pool state: exported"),
+  [POOL_STATE_DESTROYED] = N_("Pool state: destroyed"),
+  [POOL_STATE_SPARE] = N_("Pool state: reserved for hot spare"),
+  [POOL_STATE_L2CACHE] = N_("Pool state: level 2 ARC device"),
+  [POOL_STATE_UNINITIALIZED] = N_("Pool state: uninitialized"),
+  [POOL_STATE_UNAVAIL] = N_("Pool state: unavailable"),
+  [POOL_STATE_POTENTIALLY_ACTIVE] = N_("Pool state: potentially active")
+};
+
+static grub_err_t
+grub_cmd_zfsinfo (grub_command_t cmd __attribute__ ((unused)), int argc,
+		  char **args)
+{
+  grub_device_t dev;
+  char *devname;
+  grub_err_t err;
+  char *nvlist = 0;
+  char *nv = 0;
+  char *poolname;
+  grub_uint64_t guid;
+  grub_uint64_t pool_state;
+  int found;
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+  if (args[0][0] == '(' && args[0][grub_strlen (args[0]) - 1] == ')')
+    {
+      devname = grub_strdup (args[0] + 1);
+      if (devname)
+	devname[grub_strlen (devname) - 1] = 0;
+    }
+  else
+    devname = grub_strdup (args[0]);
+  if (!devname)
+    return grub_errno;
+
+  dev = grub_device_open (devname);
+  grub_free (devname);
+  if (!dev)
+    return grub_errno;
+
+  err = grub_zfs_fetch_nvlist (dev, &nvlist);
+
+  grub_device_close (dev);
+
+  if (err)
+    return err;
+
+  poolname = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_POOL_NAME);
+  if (!poolname)
+    grub_puts_ (N_("Pool name: unavailable"));
+  else
+    grub_printf_ (N_("Pool name: %s\n"), poolname);
+
+  found =
+    grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_POOL_GUID, &guid);
+  if (!found)
+    grub_puts_ (N_("Pool GUID: unavailable"));
+  else
+    grub_printf_ (N_("Pool GUID: %016llx\n"), (long long unsigned) guid);
+
+  found = grub_zfs_nvlist_lookup_uint64 (nvlist, ZPOOL_CONFIG_POOL_STATE,
+					 &pool_state);
+  if (!found)
+    grub_puts_ (N_("Unable to retrieve pool state"));
+  else if (pool_state >= ARRAY_SIZE (poolstates))
+    grub_puts_ (N_("Unrecognized pool state"));
+  else
+    grub_puts_ (poolstates[pool_state]);
+
+  nv = grub_zfs_nvlist_lookup_nvlist (nvlist, ZPOOL_CONFIG_VDEV_TREE);
+
+  if (!nv)
+    /* TRANSLATORS: There are undetermined number of virtual devices
+       in a device tree, not just one.
+     */
+    grub_puts_ (N_("No virtual device tree available"));
+  else
+    print_vdev_info (nv, 1);
+
+  grub_free (nv);
+  grub_free (nvlist);
+
+  return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_zfs_bootfs (grub_command_t cmd __attribute__ ((unused)), int argc,
+		     char **args)
+{
+  grub_device_t dev;
+  char *devname;
+  grub_err_t err;
+  char *nvlist = 0;
+  char *nv = 0;
+  char *bootpath = 0, *devid = 0;
+  char *fsname;
+  char *bootfs;
+  char *poolname;
+  grub_uint64_t mdnobj;
+
+  if (argc < 1)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+
+  devname = grub_file_get_device_name (args[0]);
+  if (devname == NULL)
+    return GRUB_ERR_OUT_OF_MEMORY;
+
+  dev = grub_device_open (devname);
+  grub_free (devname);
+  if (!dev)
+    return grub_errno;
+
+  err = grub_zfs_fetch_nvlist (dev, &nvlist);
+
+  fsname = grub_strchr (args[0], ')');
+  if (fsname)
+    fsname++;
+  else
+    fsname = args[0];
+
+  if (!err)
+    err = grub_zfs_getmdnobj (dev, fsname, &mdnobj);
+
+  grub_device_close (dev);
+
+  if (err)
+    return err;
+
+  poolname = grub_zfs_nvlist_lookup_string (nvlist, ZPOOL_CONFIG_POOL_NAME);
+  if (!poolname)
+    {
+      if (!grub_errno)
+	grub_error (GRUB_ERR_BAD_FS, "No poolname found");
+      return grub_errno;
+    }
+
+  nv = grub_zfs_nvlist_lookup_nvlist (nvlist, ZPOOL_CONFIG_VDEV_TREE);
+
+  if (nv)
+    get_bootpath (nv, &bootpath, &devid);
+
+  grub_free (nv);
+  grub_free (nvlist);
+
+  bootfs = grub_xasprintf ("zfs-bootfs=%s/%llu%s%s%s%s%s%s",
+			   poolname, (unsigned long long) mdnobj,
+			   bootpath ? ",bootpath=\"" : "",
+			   bootpath ? : "",
+			   bootpath ? "\"" : "",
+			   devid ? ",diskdevid=\"" : "",
+			   devid ? : "",
+			   devid ? "\"" : "");
+  if (!bootfs)
+    return grub_errno;
+  if (argc >= 2)
+    grub_env_set (args[1], bootfs);
+  else
+    grub_printf ("%s\n", bootfs);
+
+  grub_free (bootfs);
+  grub_free (poolname);
+  grub_free (bootpath);
+  grub_free (devid);
+
+  return GRUB_ERR_NONE;
+}
+
+
+static grub_command_t cmd_info, cmd_bootfs;
+
+GRUB_MOD_INIT (zfsinfo)
+{
+  cmd_info = grub_register_command ("zfsinfo", grub_cmd_zfsinfo,
+				    N_("DEVICE"),
+				    N_("Print ZFS info about DEVICE."));
+  cmd_bootfs = grub_register_command ("zfs-bootfs", grub_cmd_zfs_bootfs,
+				      N_("FILESYSTEM [VARIABLE]"),
+				      N_("Print ZFS-BOOTFSOBJ or store it into VARIABLE"));
+}
+
+GRUB_MOD_FINI (zfsinfo)
+{
+  grub_unregister_command (cmd_info);
+  grub_unregister_command (cmd_bootfs);
+}