grub/commands/minicmd.c

392 lines
9 KiB
C
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2009-03-21 Bean <bean123ch@gmail.com> * commands/blocklist.c: Add include file <grub/command.h>, remove <grub/normal.h> and <grub/arg.h>. (grub_cmd_blocklist): Use the new command interface. (GRUB_MOD_INIT): Likewise. (GRUB_MOD_FINI): Likewise. * commands/boot.c: Likewise. * commands/cat.c: Likewise. * commands/cmp.c: Likewise. * commands/configfile.c: Likewise. * commands/crc.c: Likewise. * commands/echo.c: Likewise. * commands/halt.c: Likewise. * commands/handler.c: Likewise. * commands/hdparm.c: Likewise. * commands/help.c: Likewise. * commands/hexdump.c: Likewise. * commands/loadenv.c: Likewise. * commands/ls.c: Likewise. * commands/lsmmap.c: Likewise. * commands/lspci.c: Likewise. * commands/loadenv.c: Likewise. * commands/read.c: Likewise. * commands/reboot.c: Likewise. * commands/search.c: Likewise. * commands/sleep.c: Likewise. * commands/test.c: Likewise. * commands/usbtest.c: Likewise. * commands/videotest.c: Likewise. * commands/i386/cpuid.c: Likewise. * commands/i386/pc/halt.c: Likewise. * commands/i386/pc/play.c: Likewise. * commands/i386/pc/pxecmd.c: Likewise. * commands/i386/pc/vbeinfo.c: Likewise. * commands/i386/pc/vbetest.c: Likewise. * commands/ieee1275/suspend.c: Likewise. * disk/loopback.c: Likewise. * font/font_cmd.c: Likewise. * hello/hello.c: Likewise. * loader/efi/appleloader.c: Likewise. * loader/efi/chainloader.c: Likewise. * loader/i386/bsd.c: Likewise. * loader/i386/efi/linux.c: Likewise. * loader/i386/ieee1275/linux.c: Likewise. * loader/i386/linux.c: Likewise. * loader/i386/pc/chainloader.c: Likewise. * loader/i386/pc/linux.c: Likewise. * loader/powerpc/ieee1275/linux.c: Likewise. * loader/multiboot_loader.c: Likewise. * term/gfxterm.c: Likewise. * term/i386/pc/serial.c: Likewise. * term/terminfo.c: Likewise. * term/i386/pc/vesafb.c: Removed <grub/arg.h>. * term/i386/pc/vga.c: Likewise. * video/readers/jpeg.c: Likewise. * video/readers/png.c: Likewise. * video/readers/tga.c: Likewise. * util/grub-fstest (cmd_loopback): Removed. (cmd_blocklist): Likewise. (cmd_ls): Likewise. (grub_register_command): Likewise. (grub_unregister_command): Likewise. (execute_command): Use grub_command_find to locate command and execute it. * include/grub/efi/chainloader.h: Removed. * loader/efi/chainloader_normal.c: Likewise. * loader/i386/bsd_normal.c: Likewise. * loader/i386/pc/chainloader_normal.c: Likewise. * loader/i386/pc/multiboot_normal.c: Likewise. * loader/linux_normal.c: Likewise. * loader/multiboot_loader_normal.c: Likewise. * loader/powerpc/ieee1275/linux_normal.c: Likewise. * gencmdlist.sh: Scan new registration command grub_register_extcmd and grub_register_command_p1. * conf/common.rmk (grub_fstest_SOURCES): Add kern/list.c, kern/command.c, lib/arg.c and commands/extcmd.c. (pkglib_MODULES): Remove boot.mod, and minicmd.mod and extcmd.mod. (minicmd_mod_SOURCES): New variable. (minicmd_mod_CFLAGS): Likewise. (minicmd_mod_LDFLAGS): Likewise. (extcmd_mod_SOURCES): Likewise. (extcmd_mod_CFLAGS): Likewise. (extcmd_mod_LDFLAGS): Likewise. (boot_mod_SOURCES): Removed. (boot_mod_CFLAGS): Likewise. (boot_mod_LDFLAGS): Likewise. * conf/i386-pc.rmk (kernel_img_SOURCES): Add kern/command.c and kern/corecmd.c. (kernel_img_HEADERS): Add command.h. (grub_emu_SOURCES): Remove commands/boot.c and normal/arg.c, add commands/minicmd.c, kern/command.c, kern/corecmd.c, commands/extcmd.c and lib/arg.c. (pkglib_MODULES): Change _linux.mod, _chain.mod, _bsd.mod and _multiboot.mod as linux.mod, chain.mod, bsd.mod and multiboot.mod, remove the corresponding normal mode command. (normal_mod_SOURCES): Remove normal/arg.c. * conf/i386-coreboot.rmk: Likewise. * conf/i386-efi.rmk: Likewise. * conf/i386-ieee1275.rmk: Likewise. * conf/powerpc-ieee1275.rmk: Likewise. * conf/x86_64-efi.rmk: Likewise. * include/grub/arg.h: Move from here ... * include/grub/lib/arg.h: ... to here. * normal/arg.c: Move from here ... * lib/arg.c: ... to here. * commands/extcmd.c: New file. * commands/minicmd.c: Likewise. * include/grub/command.h: Likewise. * include/grub/extcmd.h: Likewise. * kern/command.c: Likewise. * kern/corecmd.c: Likewise. * kern/list.c (grub_list_iterate): Return int instead of void. (grub_list_insert): New function. (grub_prio_list_insert): Likewise. * kern/rescue.c (grub_rescue_command): Removed. (grub_rescue_command_list): Likewise. (grub_rescue_register_command): Likewise. (grub_rescue_unregister_command): Likewise. (grub_rescue_cmd_boot): Move to minicmd.c (grub_rescue_cmd_help): Likewise. (grub_rescue_cmd_info): Likewise. (grub_rescue_cmd_boot): Likewise. (grub_rescue_cmd_testload): Likewise. (grub_rescue_cmd_dump): Likewise. (grub_rescue_cmd_rmmod): Likewise. (grub_rescue_cmd_lsmod): Likewise. (grub_rescue_cmd_exit): Likewise. (grub_rescue_print_devices): Moved to corecmd.c. (grub_rescue_print_files): Likewise. (grub_rescue_cmd_ls): Likewise. (grub_rescue_cmd_insmod): Likewise. (grub_rescue_cmd_set): Likewise. (grub_rescue_cmd_unset): Likewise. (attemp_normal_mode): Use grub_command_find to get normal module. (grub_enter_rescue_mode): Use grub_register_core_commands to register commands, remove grub_rescue_regiter_command calls. * normal/command.c (grub_regiser_command): Removed. (grub_unregister_command): Likewise. (grub_command_find): Likewise. (grub_iterate_commands): Likewise. (rescue_command): Likewise. (export_command): Moved to corecmd.c. (set_command): Removed. (unset_command): Likewise. (insmod_command): Likewise. (rmmod_command): Likewise. (lsmod_command): Likewise. (grub_command_init): Likewise. * normal/completion.c (iterate_command): Use cmd->prio to check for active command. (complete_arguments): Use grub_extcmd_t structure to find options. (grub_normal_do_completion): Change function grub_iterate_commands to grub_command_iterate. * normal/execute.c (grub_script_execute_cmd): No need to parse argument here. * normal/main.c (grub_dyncmd_dispatcher): New function. (read_command_list): Register unload commands as dyncmd. (grub_cmd_normal): Use new command interface, register rescue, unregister normal at entry, register normal, unregister rescue at exit. * include/grub/list.h (grub_list_test_t): New type. (grub_list_iterate): Return int instead of void. (grub_list_insert): New function. (GRUB_AS_NAMED_LIST_P): New macro. (GRUB_AS_PRIO_LIST): Likewise. (GRUB_AS_PRIO_LIST_P): Likewise. (GRUB_PRIO_LIST_PRIO_MASK): New constant. (GRUB_PRIO_LIST_FLAG_ACTIVE): Likewise. (grub_prio_list): New structure. (grub_prio_list_insert): New function. (grub_prio_list_remove): New inline function. * include/grub/normal.h: Remove <grub/arg.h>, add <grub/command.h>. (GRUB_COMMAND_FLAG_CMDLINE): Moved to command.h. (GRUB_COMMAND_FLAG_MENU): Likewise. (GRUB_COMMAND_FLAG_BOTH): Likewise. (GRUB_COMMAND_FLAG_TITLE): Likewise. (GRUB_COMMAND_FLAG_NO_ECHO): Likewise. (GRUB_COMMAND_FLAG_NO_ARG_PARSE): Removed. (GRUB_COMMAND_FLAG_NOT_LOADED): Likewise. (grub_command): Likewise. (grub_register_command): Likewise. (grub_command_find): Likewise. (grub_iterate_commands): Likewise. (grub_command_init): Likewise. (grub_arg_parse): Likewise. (grub_arg_show_help): Likewise. * include/grub/rescue.h (grub_rescue_register_command): Removed. (grub_rescue_unregister_command): Likewise. * include/grub/i386/bsd.h: Remove grub_rescue_cmd_freebsd, grub_rescue_cmd_openbsd, grub_rescue_cmd_netbsd, grub_rescue_cmd_freebsd_loadenv and grub_rescue_cmd_freebsd_module. * include/grub/i386/efi/loader.h: Remove grub_rescue_cmd_linux and grub_rescue_cmd_initrd. * include/grub/i386/loader.h: Likewise. * include/grub/x86_64/loader.h: Likewise. * include/grub/i386/pc/chainloader.h: Remove grub_chainloader_cmd.
2009-03-21 08:39:59 +00:00
/* minicmd.c - commands for the rescue mode */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003,2005,2006,2007 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/dl.h>
#include <grub/mm.h>
#include <grub/err.h>
#include <grub/env.h>
#include <grub/misc.h>
#include <grub/file.h>
#include <grub/disk.h>
#include <grub/term.h>
#include <grub/loader.h>
#include <grub/command.h>
/* boot */
static grub_err_t
grub_mini_cmd_boot (struct grub_command *cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char *argv[] __attribute__ ((unused)))
{
return grub_loader_boot ();
}
/* cat FILE */
static grub_err_t
grub_mini_cmd_cat (struct grub_command *cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_file_t file;
char buf[GRUB_DISK_SECTOR_SIZE];
grub_ssize_t size;
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no file specified");
file = grub_file_open (argv[0]);
if (! file)
return grub_errno;
while ((size = grub_file_read (file, buf, sizeof (buf))) > 0)
{
int i;
for (i = 0; i < size; i++)
{
unsigned char c = buf[i];
if ((grub_isprint (c) || grub_isspace (c)) && c != '\r')
grub_putchar (c);
else
{
grub_setcolorstate (GRUB_TERM_COLOR_HIGHLIGHT);
grub_printf ("<%x>", (int) c);
grub_setcolorstate (GRUB_TERM_COLOR_STANDARD);
}
}
}
grub_putchar ('\n');
grub_refresh ();
grub_file_close (file);
return 0;
}
/* help */
static grub_err_t
grub_mini_cmd_help (struct grub_command *cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char *argv[] __attribute__ ((unused)))
{
grub_command_t p;
for (p = grub_command_list; p; p = p->next)
grub_printf ("%s (%d%c)\t%s\n", p->name,
p->prio & GRUB_PRIO_LIST_PRIO_MASK,
(p->prio & GRUB_PRIO_LIST_FLAG_ACTIVE) ? '+' : '-',
p->description);
return 0;
}
#if 0
static void
grub_rescue_cmd_info (void)
{
extern void grub_disk_cache_get_performance (unsigned long *,
unsigned long *);
unsigned long hits, misses;
grub_disk_cache_get_performance (&hits, &misses);
grub_printf ("Disk cache: hits = %u, misses = %u ", hits, misses);
if (hits + misses)
{
unsigned long ratio = hits * 10000 / (hits + misses);
grub_printf ("(%u.%u%%)\n", ratio / 100, ratio % 100);
}
else
grub_printf ("(N/A)\n");
}
#endif
/* root [DEVICE] */
static grub_err_t
grub_mini_cmd_root (struct grub_command *cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_device_t dev;
grub_fs_t fs;
if (argc > 0)
{
char *device_name = grub_file_get_device_name (argv[0]);
if (! device_name)
return grub_errno;
grub_env_set ("root", device_name);
grub_free (device_name);
}
dev = grub_device_open (0);
if (! dev)
return grub_errno;
fs = grub_fs_probe (dev);
if (grub_errno == GRUB_ERR_UNKNOWN_FS)
grub_errno = GRUB_ERR_NONE;
grub_printf ("(%s): Filesystem is %s.\n",
grub_env_get ("root"), fs ? fs->name : "unknown");
grub_device_close (dev);
return 0;
}
#if 0
static void
grub_rescue_cmd_testload (int argc, char *argv[])
{
grub_file_t file;
char *buf;
grub_ssize_t size;
grub_ssize_t pos;
auto void read_func (unsigned long sector, unsigned offset, unsigned len);
void read_func (unsigned long sector __attribute__ ((unused)),
unsigned offset __attribute__ ((unused)),
unsigned len __attribute__ ((unused)))
{
grub_putchar ('.');
grub_refresh ();
}
if (argc < 1)
{
grub_error (GRUB_ERR_BAD_ARGUMENT, "no file specified");
return;
}
file = grub_file_open (argv[0]);
if (! file)
return;
size = grub_file_size (file) & ~(GRUB_DISK_SECTOR_SIZE - 1);
if (size == 0)
{
grub_file_close (file);
return;
}
buf = grub_malloc (size);
if (! buf)
goto fail;
grub_printf ("Reading %s sequentially", argv[0]);
file->read_hook = read_func;
if (grub_file_read (file, buf, size) != size)
goto fail;
grub_printf (" Done.\n");
/* Read sequentially again. */
grub_printf ("Reading %s sequentially again", argv[0]);
if (grub_file_seek (file, 0) < 0)
goto fail;
for (pos = 0; pos < size; pos += GRUB_DISK_SECTOR_SIZE)
{
char sector[GRUB_DISK_SECTOR_SIZE];
if (grub_file_read (file, sector, GRUB_DISK_SECTOR_SIZE)
!= GRUB_DISK_SECTOR_SIZE)
goto fail;
if (grub_memcmp (sector, buf + pos, GRUB_DISK_SECTOR_SIZE) != 0)
{
grub_printf ("\nDiffers in %d\n", pos);
goto fail;
}
}
grub_printf (" Done.\n");
/* Read backwards and compare. */
grub_printf ("Reading %s backwards", argv[0]);
pos = size;
while (pos > 0)
{
char sector[GRUB_DISK_SECTOR_SIZE];
pos -= GRUB_DISK_SECTOR_SIZE;
if (grub_file_seek (file, pos) < 0)
goto fail;
if (grub_file_read (file, sector, GRUB_DISK_SECTOR_SIZE)
!= GRUB_DISK_SECTOR_SIZE)
goto fail;
if (grub_memcmp (sector, buf + pos, GRUB_DISK_SECTOR_SIZE) != 0)
{
int i;
grub_printf ("\nDiffers in %d\n", pos);
for (i = 0; i < GRUB_DISK_SECTOR_SIZE; i++)
grub_putchar (buf[pos + i]);
if (i)
grub_refresh ();
goto fail;
}
}
grub_printf (" Done.\n");
fail:
grub_file_close (file);
grub_free (buf);
}
#endif
/* dump ADDRESS [SIZE] */
static grub_err_t
grub_mini_cmd_dump (struct grub_command *cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_uint8_t *addr;
grub_size_t size = 4;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no address specified");
addr = (grub_uint8_t *) grub_strtoul (argv[0], 0, 0);
if (grub_errno)
return grub_errno;
if (argc > 1)
size = (grub_size_t) grub_strtoul (argv[1], 0, 0);
while (size--)
{
grub_printf ("%x%x ", *addr >> 4, *addr & 0xf);
addr++;
}
return 0;
}
/* rmmod MODULE */
static grub_err_t
grub_mini_cmd_rmmod (struct grub_command *cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_dl_t mod;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no module specified");
mod = grub_dl_get (argv[0]);
if (! mod)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no such module");
if (grub_dl_unref (mod) <= 0)
grub_dl_unload (mod);
return 0;
}
/* lsmod */
static grub_err_t
grub_mini_cmd_lsmod (struct grub_command *cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char *argv[] __attribute__ ((unused)))
{
auto int print_module (grub_dl_t mod);
int print_module (grub_dl_t mod)
{
grub_dl_dep_t dep;
grub_printf ("%s\t%d\t\t", mod->name, mod->ref_count);
for (dep = mod->dep; dep; dep = dep->next)
{
if (dep != mod->dep)
grub_putchar (',');
grub_printf ("%s", dep->mod->name);
}
grub_putchar ('\n');
grub_refresh ();
return 0;
}
grub_printf ("Name\tRef Count\tDependencies\n");
grub_dl_iterate (print_module);
return 0;
}
/* exit */
static grub_err_t
grub_mini_cmd_exit (struct grub_command *cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char *argv[] __attribute__ ((unused)))
{
grub_exit ();
return 0;
}
static grub_command_t cmd_boot, cmd_cat, cmd_help, cmd_root;
static grub_command_t cmd_dump, cmd_rmmod, cmd_lsmod, cmd_exit;
GRUB_MOD_INIT(minicmd)
{
(void) mod; /* To stop warning. */
cmd_boot =
grub_register_command ("boot", grub_mini_cmd_boot,
0, "boot an operating system");
cmd_cat =
grub_register_command ("cat", grub_mini_cmd_cat,
"cat FILE", "show the contents of a file");
cmd_help =
grub_register_command ("help", grub_mini_cmd_help,
0, "show this message");
cmd_root =
grub_register_command ("root", grub_mini_cmd_root,
"root [DEVICE]", "set the root device");
cmd_dump =
grub_register_command ("dump", grub_mini_cmd_dump,
"dump ADDR", "dump memory");
cmd_rmmod =
grub_register_command ("rmmod", grub_mini_cmd_rmmod,
"rmmod MODULE", "remove a module");
cmd_lsmod =
grub_register_command ("lsmod", grub_mini_cmd_lsmod,
0, "show loaded modules");
cmd_exit =
grub_register_command ("exit", grub_mini_cmd_exit,
0, "exit from GRUB");
}
GRUB_MOD_FINI(minicmd)
{
grub_unregister_command (cmd_boot);
grub_unregister_command (cmd_cat);
grub_unregister_command (cmd_help);
grub_unregister_command (cmd_root);
grub_unregister_command (cmd_dump);
grub_unregister_command (cmd_rmmod);
grub_unregister_command (cmd_lsmod);
grub_unregister_command (cmd_exit);
}