grub/commands/probe.c

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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 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 <grub/types.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/err.h>
#include <grub/dl.h>
#include <grub/device.h>
#include <grub/disk.h>
#include <grub/partition.h>
#include <grub/net.h>
#include <grub/fs.h>
#include <grub/file.h>
#include <grub/misc.h>
#include <grub/env.h>
#include <grub/extcmd.h>
2009-12-23 Felix Zielcke <fzielcke@z-51.de> * commands/i386/pc/drivemap.c: Remove all trailing whitespace. * commands/lspci.c: Likewise. * commands/probe.c: Likewise. * commands/xnu_uuid.c: Likewise. * conf/i386-coreboot.rmk: Likewise. * conf/i386-efi.rmk: Likewise. * conf/i386-ieee1275.rmk: Likewise. * conf/i386-pc.rmk: Likewise. * conf/powerpc-ieee1275.rmk: Likewise. * conf/sparc64-ieee1275.rmk: Likewise. * conf/x86_64-efi.rmk: Likewise. * fs/i386/pc/pxe.c: Likewise. * gettext/gettext.c: Likewise. * include/grub/efi/graphics_output.h: Likewise. * include/grub/i386/pc/memory.h: Likewise. * kern/env.c: Likewise. * kern/i386/qemu/startup.S: Likewise. * lib/i386/pc/biosnum.c: Likewise. * lib/i386/relocator.c: Likewise. * lib/i386/relocator_asm.S: Likewise. * lib/relocator.c: Likewise. * loader/i386/bsd.c: Likewise. * loader/i386/multiboot.c: Likewise. * loader/i386/pc/chainloader.c: Likewise. * loader/i386/xnu.c: Likewise. * loader/xnu.c: Likewise. * normal/main.c: Likewise. * normal/menu_text.c: Likewise. * util/getroot.c: Likewise. * util/grub-mkconfig_lib.in: Likewise. * util/grub.d/00_header.in: Likewise. * util/i386/pc/grub-mkimage.c: Likewise. * util/mkisofs/eltorito.c: Likewise. * util/mkisofs/exclude.h: Likewise. * util/mkisofs/hash.c: Likewise. * util/mkisofs/iso9660.h: Likewise. * util/mkisofs/joliet.c: Likewise. * util/mkisofs/mkisofs.c: Likewise. * util/mkisofs/mkisofs.h: Likewise. * util/mkisofs/multi.c: Likewise. * util/mkisofs/name.c: Likewise. * util/mkisofs/rock.c: Likewise. * util/mkisofs/tree.c: Likewise. * util/mkisofs/write.c: Likewise. * video/efi_gop.c: Likewise.
2009-12-23 16:41:32 +00:00
static const struct grub_arg_option options[] =
{
{"set", 's', GRUB_ARG_OPTION_OPTIONAL,
2009-12-21 Carles Pina i Estany <carles@pina.cat> * commands/acpi.c (options): Fix capitalizations and/or full stops. (GRUB_MOD_INIT): Likewise. * commands/boot.c (GRUB_MOD_INIT): Likewise. * commands/cmp.c (grub_cmd_cmp): Likewise. * commands/echo.c (options): Likewise. * commands/efi/loadbios.c (enable_rom_area): Likewise. (enable_rom_area): Likewise. (GRUB_MOD_INIT): Likewise. * commands/gptsync.c (GRUB_MOD_INIT): Likewise. * commands/halt.c (GRUB_MOD_INIT): Improve the help message. * commands/handler.c (GRUB_MOD_INIT): Likewise. * commands/hdparm.c (options): Fix capitalizations and/or full stops. * commands/hexdump.c (options): Likewise. * commands/i386/cpuid.c (options): Likewise. (GRUB_MOD_INIT): Likewise. * commands/i386/pc/drivemap.c (options): Likewise. (GRUB_MOD_INIT): Likewise. * commands/i386/pc/halt (options): Likewise. (GRUB_MOD_INIT): Likewise. * commands/i386/pc/play.c (GRUB_MOD_INIT): Likewise. * commands/i386/pc/pxecmd.c (options): Likewise. * commands/i386/pc/vbetest.c (GRUB_MOD_INIT): Likewise. * commands/ieee1275/suspend.c (GRUB_MOD_INIT): Likewise. * commands/keystatus.c (options): Likewise. (GRUB_MOD_INIT): Likewise. * commands/loadenv.c (options): Likewise. * commands/ls.c (options): Likewise. * commands/lspci.c (GRUB_MOD_INIT): Likewise. * commands/memrw.c (GRUB_MOD_INIT): Likewise. * commands/minicmd.c (GRUB_MOD_INIT): Likewise. * commands/parttool.c (helpmsg): Likewise. * commands/probe.c (options): Likewise. * commands/read.c (GRUB_MOD_INIT): Likewise. * commands/reboot.c (GRUB_MOD_INIT): Likewise. * commands/search.c (options): Likewise. * commands/sleep.c (options): Likewise. * commands/test.c (GRUB_MOD_INIT): Likewise. * commands/true.c (GRUB_MOD_INIT): Likewise. * commands/usbtest.c (GRUB_MOD_INIT): Likewise. * commands/videotest.c (GRUB_MOD_INIT): Likewise. * lib/arg.c (help_options): Likewise.
2009-12-21 22:06:04 +00:00
"Set a variable to return value.", "VAR", ARG_TYPE_STRING},
{"driver", 'd', 0, "Determine driver.", 0, 0},
{"partmap", 'p', 0, "Determine partition map type.", 0, 0},
{"fs", 'f', 0, "Determine filesystem type.", 0, 0},
{"fs-uuid", 'u', 0, "Determine filesystem UUID.", 0, 0},
{"label", 'l', 0, "Determine filesystem label.", 0, 0},
{0, 0, 0, 0, 0, 0}
};
static grub_err_t
grub_cmd_probe (grub_extcmd_t cmd, int argc, char **args)
{
struct grub_arg_list *state = cmd->state;
grub_device_t dev;
grub_fs_t fs;
char *ptr;
grub_err_t err;
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "device name required");
ptr = args[0] + grub_strlen (args[0]) - 1;
if (args[0][0] == '(' && *ptr == ')')
{
*ptr = 0;
dev = grub_device_open (args[0] + 1);
*ptr = ')';
}
else
dev = grub_device_open (args[0]);
if (! dev)
return grub_error (GRUB_ERR_BAD_DEVICE, "couldn't open device");
if (state[1].set)
{
const char *val = "none";
if (dev->net)
val = dev->net->dev->name;
if (dev->disk)
val = dev->disk->dev->name;
if (state[0].set)
grub_env_set (state[0].arg, val);
else
grub_printf ("%s", val);
return GRUB_ERR_NONE;
}
if (state[2].set)
{
const char *val = "none";
if (dev->disk && dev->disk->partition)
val = dev->disk->partition->partmap->name;
if (state[0].set)
grub_env_set (state[0].arg, val);
else
grub_printf ("%s", val);
return GRUB_ERR_NONE;
}
fs = grub_fs_probe (dev);
if (! fs)
return grub_error (GRUB_ERR_UNKNOWN_FS, "unrecognised fs");
if (state[3].set)
{
if (state[0].set)
grub_env_set (state[0].arg, fs->name);
else
grub_printf ("%s", fs->name);
return GRUB_ERR_NONE;
}
if (state[4].set)
{
char *uuid;
if (! fs->uuid)
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"uuid for this FS isn't supported yet");
err = fs->uuid (dev, &uuid);
if (err)
return err;
if (! uuid)
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"uuid for this FS isn't supported yet");
if (state[0].set)
grub_env_set (state[0].arg, uuid);
else
grub_printf ("%s", uuid);
grub_free (uuid);
return GRUB_ERR_NONE;
}
if (state[5].set)
{
char *label;
if (! fs->label)
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"label for this FS isn't supported yet");
err = fs->label (dev, &label);
if (err)
return err;
if (! label)
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"uuid for this FS isn't supported yet");
if (state[0].set)
grub_env_set (state[0].arg, label);
else
grub_printf ("%s", label);
grub_free (label);
return GRUB_ERR_NONE;
}
return grub_error (GRUB_ERR_BAD_ARGUMENT, "unrecognised target");
}
static grub_extcmd_t cmd;
GRUB_MOD_INIT (probe)
{
cmd = grub_register_extcmd ("probe", grub_cmd_probe, GRUB_COMMAND_FLAG_BOTH,
2009-12-26 Carles Pina i Estany <carles@pina.cat> * commands/help.c (grub_cmd_help): Print the command name before the summary. (GRUB_MOD_INIT): Remove command name from the summary. * kern/command.c (GRUB_MOD_INIT): If summary is null assign an empty strig as summary. * lib/arg.c (find_long): Print the command name before the summary. * commands/acpi.c (GRUB_MOD_INIT): Remove command name from the summary. * commands/blocklist.c (GRUB_MOD_INIT): Likewise. * commands/cat.c (GRUB_MOD_INIT): Likewise. * commands/cmp.c (GRUB_MOD_INIT): Likewise. * commands/configfile.c (GRUB_MOD_INIT): Likewise. * commands/crc.c (GRUB_MOD_INIT): Likewise. * commands/date.c (GRUB_MOD_INIT): Likewise. * commands/echo.c (GRUB_MOD_INIT): Likewise. * commands/efi/loadbios.c (GRUB_MOD_INIT): Likewise. * commands/gptsync.c (GRUB_MOD_INIT): Likewise. * commands/handler.c (GRUB_MOD_INIT): Likewise. * commands/hdparm.c (GRUB_MOD_INIT): Likewise. * commands/hexdump.c (GRUB_MOD_INIT): Likewise. * commands/i386/cpuid.c (GRUB_MOD_INIT): Likewise. * commands/i386/pc/halt.c (GRUB_MOD_INIT): Likewise. * commands/i386/pc/play.c (GRUB_MOD_INIT): Likewise. * commands/i386/pc/pxecmd.c (GRUB_MOD_INIT): Likewise. * commands/keystatus.c (GRUB_MOD_INIT): Likewise. * commands/loadenv.c (GRUB_MOD_INIT): Likewise. * commands/ls.c (GRUB_MOD_INIT): Likewise. * commands/lspci.c (GRUB_MOD_INIT): Likewise. * commands/memrw.c (GRUB_MOD_INIT): Likewise. * commands/minicmd.c (GRUB_MOD_INIT): Likewise. * commands/parttool.c (GRUB_MOD_INIT): Likewise. * commands/password.c (GRUB_MOD_INIT): Likewise. * commands/probe.c (GRUB_MOD_INIT): Likewise. * commands/read.c (GRUB_MOD_INIT): Likewise. * commands/search.c (GRUB_MOD_INIT): Likewise. * commands/sleep.c (GRUB_MOD_INIT): Likewise. * commands/test.c (GRUB_MOD_INIT): Likewise. * commands/xnu_uuid.c (GRUB_MOD_INIT): Likewise. * efiemu/main.c (GRUB_MOD_INIT): Likewise. * font/font_cmd.c (GRUB_MOD_INIT): Likewise. * gettext/gettext.c (GRUB_MOD_INIT): Likewise. * kern/corecmd.c (GRUB_MOD_INIT): Likewise. * lib/arg.c (GRUB_MOD_INIT): Likewise. * loader/efi/appleloader.c (GRUB_MOD_INIT): Likewise. * loader/i386/bsd.c (GRUB_MOD_INIT): Likewise. * loader/xnu.c (GRUB_MOD_INIT): Likewise. * mmap/mmap.c (GRUB_MOD_INIT): Likewise. * term/terminfo.c (GRUB_MOD_INIT): Likewise. * video/readers/jpeg.c (GRUB_MOD_INIT): Likewise. * video/readers/png.c (GRUB_MOD_INIT): Likewise. * video/readers/tga.c (GRUB_MOD_INIT): Likewise.
2009-12-25 23:50:59 +00:00
"[DEVICE]",
"Retrieve device info.", options);
}
GRUB_MOD_FINI (probe)
{
grub_unregister_extcmd (cmd);
}