2 * GRUB -- GRand Unified Bootloader
3 * Copyright (C) 2009 Free Software Foundation, Inc.
5 * GRUB is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * GRUB is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
19 #include <grub/auth.h>
20 #include <grub/crypto.h>
21 #include <grub/list.h>
23 #include <grub/misc.h>
25 #include <grub/normal.h>
27 #include <grub/i18n.h>
29 GRUB_MOD_LICENSE ("GPLv3+");
31 static grub_dl_t my_mod
;
34 check_password (const char *user
, const char *entered
,
37 if (grub_crypto_memcmp (entered
, password
, GRUB_AUTH_MAX_PASSLEN
) != 0)
38 return GRUB_ACCESS_DENIED
;
40 grub_auth_authenticate (user
);
46 grub_normal_set_password (const char *user
, const char *password
)
52 pass
= grub_zalloc (GRUB_AUTH_MAX_PASSLEN
);
55 copylen
= grub_strlen (password
);
56 if (copylen
>= GRUB_AUTH_MAX_PASSLEN
)
57 copylen
= GRUB_AUTH_MAX_PASSLEN
- 1;
58 grub_memcpy (pass
, password
, copylen
);
60 err
= grub_auth_register_authentication (user
, check_password
, pass
);
71 grub_cmd_password (grub_command_t cmd
__attribute__ ((unused
)),
72 int argc
, char **args
)
75 return grub_error (GRUB_ERR_BAD_ARGUMENT
, N_("two arguments expected"));
76 return grub_normal_set_password (args
[0], args
[1]);
79 static grub_command_t cmd
;
81 GRUB_MOD_INIT(password
)
84 cmd
= grub_register_command ("password", grub_cmd_password
,
86 N_("Set user password (plaintext). "
87 "Unrecommended and insecure."));
90 GRUB_MOD_FINI(password
)
92 grub_unregister_command (cmd
);