e7e1f93ff6
Authentication support. * commands/password.c: New file. * conf/common.rmk (pkglib_MODULES): Add password.mod. (password_mod_SOURCES): New variable. (password_mod_CFLAGS): Likewise. (password_mod_LDFLAGS): Likewise. (normal_mod_SOURCES): Add normal/auth.c. * conf/i386-coreboot.rmk (grub_emu_SOURCES): Add commands/password.c and normal/auth.c. * conf/i386-efi.rmk (grub_emu_SOURCES): Likewise. * conf/i386-ieee1275.rmk (grub_emu_SOURCES): Likewise. * conf/i386-pc.rmk (grub_emu_SOURCES): Likewise. * conf/powerpc-ieee1275.rmk (grub_emu_SOURCES): Likewise. * conf/sparc64-ieee1275.rmk (grub_emu_SOURCES): Likewise. * conf/x86_64-efi.rmk (grub_emu_SOURCES): Likewise. * include/grub/auth.h: New file. * include/grub/err.h (grub_err_t): New enum value GRUB_ERR_ACCESS_DENIED. * include/grub/menu.h (grub_menu_entry): New fields 'restricted' and 'users'. * include/grub/normal.h (grub_cmdline_get): New argument 'history'. * normal/cmdline.c (grub_cmdline_get): New argument 'history'. All users updated. * normal/auth.c: New file. * normal/main.c (grub_normal_add_menu_entry): Handle --users option. (grub_cmdline_run): Don't allow to go to command line without authentication. * normal/menu.c (grub_menu_execute_entry): Handle restricted entries. * normal/menu_entry.c (grub_menu_entry_run): Don't allow editing menuentry without superuser rights. * normal/menu_viewer.c (grub_menu_viewer_show_menu): Don't exit if user isn't a superuser.
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/auth.h>
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#include <grub/list.h>
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#include <grub/mm.h>
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#include <grub/misc.h>
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#include <grub/env.h>
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#include <grub/normal.h>
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#include <grub/dl.h>
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static grub_dl_t my_mod;
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static grub_err_t
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check_password (const char *user,
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void *password)
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{
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char entered[1024];
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grub_memset (entered, 0, sizeof (entered));
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if (!GRUB_GET_PASSWORD (entered, sizeof (entered) - 1))
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return GRUB_ACCESS_DENIED;
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if (grub_auth_strcmp (entered, password) != 0)
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return GRUB_ACCESS_DENIED;
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grub_auth_authenticate (user);
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return GRUB_ERR_NONE;
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}
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static grub_err_t
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grub_cmd_password (grub_command_t cmd __attribute__ ((unused)),
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int argc, char **args)
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{
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grub_err_t err;
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char *pass;
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if (argc != 2)
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return grub_error (GRUB_ERR_BAD_ARGUMENT, "Two arguments expected.");
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pass = grub_strdup (args[1]);
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if (!pass)
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return grub_errno;
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err = grub_auth_register_authentication (args[0], check_password, pass);
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if (err)
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{
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grub_free (pass);
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return err;
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}
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grub_dl_ref (my_mod);
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return GRUB_ERR_NONE;
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}
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static grub_command_t cmd;
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GRUB_MOD_INIT(password)
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{
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my_mod = mod;
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cmd = grub_register_command ("password", grub_cmd_password,
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"password USER PASSWORD",
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"Set user password (plaintext). "
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"Unrecommended and insecure.");
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}
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GRUB_MOD_FINI(password)
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{
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grub_unregister_command (cmd);
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}
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