/* * 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 . */ #include #include #include #include #include #include #include #include static grub_dl_t my_mod; static grub_err_t check_password (const char *user, void *password) { char entered[1024]; grub_memset (entered, 0, sizeof (entered)); if (!GRUB_GET_PASSWORD (entered, sizeof (entered) - 1)) return GRUB_ACCESS_DENIED; if (grub_auth_strcmp (entered, password) != 0) return GRUB_ACCESS_DENIED; grub_auth_authenticate (user); return GRUB_ERR_NONE; } static grub_err_t grub_cmd_password (grub_command_t cmd __attribute__ ((unused)), int argc, char **args) { grub_err_t err; char *pass; if (argc != 2) return grub_error (GRUB_ERR_BAD_ARGUMENT, "two arguments expected"); pass = grub_strdup (args[1]); if (!pass) return grub_errno; err = grub_auth_register_authentication (args[0], check_password, pass); if (err) { grub_free (pass); return err; } grub_dl_ref (my_mod); return GRUB_ERR_NONE; } static grub_command_t cmd; GRUB_MOD_INIT(password) { my_mod = mod; cmd = grub_register_command ("password", grub_cmd_password, N_("USER PASSWORD"), N_("Set user password (plaintext). " "Unrecommended and insecure.")); } GRUB_MOD_FINI(password) { grub_unregister_command (cmd); }