/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2020 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
#include
GRUB_MOD_LICENSE ("GPLv3+");
#define MAX_KEYMAP 255
struct keymap
{
int cnt;
int in[MAX_KEYMAP];
int out[MAX_KEYMAP];
};
static struct keymap setkey_keymap;
struct keysym
{
const char *name; /* the name in unshifted state */
int code; /* scan code */
};
/* The table for key symbols. (from GRUB4DOS) */
static struct keysym keysym_table[] =
{
{"escape", GRUB_TERM_ESC}, // ESC
{"exclam", 0x21}, // '!'
{"at", 0x40}, // '@'
{"numbersign", 0x23}, // '#'
{"dollar", 0x24}, // '$'
{"percent", 0x25}, // '%'
{"caret", 0x5E}, // '^'
{"ampersand", 0x26}, // '&'
{"asterisk", 0x2A}, // '*'
{"parenleft", 0x28}, // '('
{"parenright", 0x29}, // ')'
{"minus", 0x2D}, // '-'
{"underscore", 0x5F}, // '_'
{"equal", 0x3D}, // '='
{"plus", 0x2B}, // '+'
{"backspace", GRUB_TERM_BACKSPACE}, // BS
{"ctrlbackspace", GRUB_TERM_CTRL | GRUB_TERM_BACKSPACE}, // (DEL)
{"tab", GRUB_TERM_TAB}, // Tab
{"bracketleft", 0x5B}, // '['
{"braceleft", 0x7B}, // '{'
{"bracketright", 0x5D}, // ']'
{"braceright", 0x7D}, // '}'
{"enter", 0x0D}, // Enter
{"semicolon", 0x3B}, // ';'
{"colon", 0x3A}, // ':'
{"quote", 0x27}, // '\''
{"doublequote", 0x22}, // '"'
{"backquote", 0x60}, // '`'
{"tilde", 0x7E}, // '~'
{"backslash", 0x5C}, // '\\'
{"bar", 0x7C}, // '|'
{"comma", 0x2C}, // ','
{"less", 0x3C}, // '<'
{"period", 0x2E}, // '.'
{"greater", 0x3E}, // '>'
{"slash", 0x2F}, // '/'
{"question", 0x3F}, // '?'
{"space", 0x20}, // Space
{"F1", GRUB_TERM_KEY_F1},
{"F2", GRUB_TERM_KEY_F2},
{"F3", GRUB_TERM_KEY_F3},
{"F4", GRUB_TERM_KEY_F4},
{"F5", GRUB_TERM_KEY_F5},
{"F6", GRUB_TERM_KEY_F6},
{"F7", GRUB_TERM_KEY_F7},
{"F8", GRUB_TERM_KEY_F8},
{"F9", GRUB_TERM_KEY_F9},
{"F10", GRUB_TERM_KEY_F10},
{"F11", GRUB_TERM_KEY_F11},
{"F12", GRUB_TERM_KEY_F12},
{"home", GRUB_TERM_KEY_HOME},
{"uparrow", GRUB_TERM_KEY_UP},
{"pageup", GRUB_TERM_KEY_NPAGE}, // PgUp
{"leftarrow", GRUB_TERM_KEY_LEFT},
{"center", GRUB_TERM_KEY_CENTER}, // keypad center key
{"rightarrow", GRUB_TERM_KEY_RIGHT},
{"end", GRUB_TERM_KEY_END},
{"downarrow", GRUB_TERM_KEY_DOWN},
{"pagedown", GRUB_TERM_KEY_PPAGE}, // PgDn
{"insert", GRUB_TERM_KEY_INSERT}, // Insert
{"delete", GRUB_TERM_KEY_DC}, // Delete
{"shiftF1", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F1},
{"shiftF2", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F2},
{"shiftF3", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F3},
{"shiftF4", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F4},
{"shiftF5", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F5},
{"shiftF6", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F6},
{"shiftF7", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F7},
{"shiftF8", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F8},
{"shiftF9", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F9},
{"shiftF10", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F10},
{"shiftF11", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F11},
{"shiftF12", GRUB_TERM_SHIFT | GRUB_TERM_KEY_F12},
{"ctrlF1", GRUB_TERM_CTRL | GRUB_TERM_KEY_F1},
{"ctrlF2", GRUB_TERM_CTRL | GRUB_TERM_KEY_F2},
{"ctrlF3", GRUB_TERM_CTRL | GRUB_TERM_KEY_F3},
{"ctrlF4", GRUB_TERM_CTRL | GRUB_TERM_KEY_F4},
{"ctrlF5", GRUB_TERM_CTRL | GRUB_TERM_KEY_F5},
{"ctrlF6", GRUB_TERM_CTRL | GRUB_TERM_KEY_F6},
{"ctrlF7", GRUB_TERM_CTRL | GRUB_TERM_KEY_F7},
{"ctrlF8", GRUB_TERM_CTRL | GRUB_TERM_KEY_F8},
{"ctrlF9", GRUB_TERM_CTRL | GRUB_TERM_KEY_F9},
{"ctrlF10", GRUB_TERM_CTRL | GRUB_TERM_KEY_F10},
{"ctrlF11", GRUB_TERM_CTRL | GRUB_TERM_KEY_F11},
{"ctrlF12", GRUB_TERM_CTRL | GRUB_TERM_KEY_F12},
// A=Alt or AltGr. Provided by steve.
{"Aq", GRUB_TERM_ALT | 0x71},
{"Aw", GRUB_TERM_ALT | 0x77},
{"Ae", GRUB_TERM_ALT | 0x65},
{"Ar", GRUB_TERM_ALT | 0x72},
{"At", GRUB_TERM_ALT | 0x74},
{"Ay", GRUB_TERM_ALT | 0x79},
{"Au", GRUB_TERM_ALT | 0x75},
{"Ai", GRUB_TERM_ALT | 0x69},
{"Ao", GRUB_TERM_ALT | 0x6F},
{"Ap", GRUB_TERM_ALT | 0x70},
{"Aa", GRUB_TERM_ALT | 0x61},
{"As", GRUB_TERM_ALT | 0x73},
{"Ad", GRUB_TERM_ALT | 0x64},
{"Af", GRUB_TERM_ALT | 0x66},
{"Ag", GRUB_TERM_ALT | 0x67},
{"Ah", GRUB_TERM_ALT | 0x68},
{"Aj", GRUB_TERM_ALT | 0x6A},
{"Ak", GRUB_TERM_ALT | 0x6B},
{"Al", GRUB_TERM_ALT | 0x6C},
{"Az", GRUB_TERM_ALT | 0x7A},
{"Ax", GRUB_TERM_ALT | 0x78},
{"Ac", GRUB_TERM_ALT | 0x63},
{"Av", GRUB_TERM_ALT | 0x76},
{"Ab", GRUB_TERM_ALT | 0x62},
{"An", GRUB_TERM_ALT | 0x6E},
{"Am", GRUB_TERM_ALT | 0x6D},
{"A1", GRUB_TERM_ALT | 0x31},
{"A2", GRUB_TERM_ALT | 0x32},
{"A3", GRUB_TERM_ALT | 0x33},
{"A4", GRUB_TERM_ALT | 0x34},
{"A5", GRUB_TERM_ALT | 0x35},
{"A6", GRUB_TERM_ALT | 0x36},
{"A7", GRUB_TERM_ALT | 0x37},
{"A8", GRUB_TERM_ALT | 0x38},
{"A9", GRUB_TERM_ALT | 0x39},
{"A0", GRUB_TERM_ALT | 0x30},
//{"oem102", 0x5c},
//{"shiftoem102", 0x7c},
{"Aminus", GRUB_TERM_ALT | 0x2D},
{"Aequal", GRUB_TERM_ALT | 0x3D},
{"Abracketleft", GRUB_TERM_ALT | 0x5B},
{"Abracketright", GRUB_TERM_ALT | 0x5D},
{"Asemicolon", GRUB_TERM_ALT | 0x3B},
{"Aquote", GRUB_TERM_ALT | 0x27},
{"Abackquote", GRUB_TERM_ALT | 0x60},
{"Abackslash", GRUB_TERM_ALT | 0x5C},
{"Acomma", GRUB_TERM_ALT | 0x2C},
{"Aperiod", GRUB_TERM_ALT | 0x2E},
{"Aslash", GRUB_TERM_ALT | 0x2F},
{"Acolon", GRUB_TERM_ALT | 0x3A},
{"Aplus", GRUB_TERM_ALT | 0x2B},
{"Aless", GRUB_TERM_ALT | 0x3C},
{"Aunderscore", GRUB_TERM_ALT | 0x5F},
{"Agreater", GRUB_TERM_ALT | 0x3E},
{"Aquestion", GRUB_TERM_ALT | 0x3F},
{"Atilde", GRUB_TERM_ALT | 0x7E},
{"Abraceleft", GRUB_TERM_ALT | 0x7B},
{"Abar", GRUB_TERM_ALT | 0x7C},
{"Abraceright", GRUB_TERM_ALT | 0x7D},
{"Adoublequote", GRUB_TERM_ALT | 0x22},
};
static int grub_keymap_getkey (int key)
{
int i;
if (key == GRUB_TERM_NO_KEY)
return key;
if (setkey_keymap.cnt > MAX_KEYMAP)
setkey_keymap.cnt = MAX_KEYMAP;
for (i = 0; i < setkey_keymap.cnt; i++)
{
if (key == setkey_keymap.in[i])
{
key = setkey_keymap.out[i];
break;
}
}
return key;
}
static void
grub_keymap_reset (void)
{
grub_memset (&setkey_keymap, 0, sizeof (struct keymap));
}
static grub_err_t
grub_keymap_add (int in, int out)
{
if (in == GRUB_TERM_NO_KEY || out == GRUB_TERM_NO_KEY)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid key: %d -> %d", in, out);
if (setkey_keymap.cnt >= MAX_KEYMAP)
return grub_error (GRUB_ERR_OUT_OF_MEMORY,
"keymap FULL %d", setkey_keymap.cnt);
setkey_keymap.in[setkey_keymap.cnt] = in;
setkey_keymap.out[setkey_keymap.cnt] = out;
setkey_keymap.cnt++;
return GRUB_ERR_NONE;
}
static void
grub_keymap_enable (void)
{
grub_key_remap = grub_keymap_getkey;
}
static void
grub_keymap_disable (void)
{
grub_key_remap = NULL;
}
static void
grub_keymap_status (void)
{
int i;
if (setkey_keymap.cnt > MAX_KEYMAP)
setkey_keymap.cnt = MAX_KEYMAP;
for (i = 0; i < setkey_keymap.cnt; i++)
{
grub_printf ("0x%x -> 0x%x\n", setkey_keymap.in[i], setkey_keymap.out[i]);
}
}
static const struct grub_arg_option options[] =
{
{"reset", 'r', 0, N_("Reset keymap."), 0, 0},
{"enable", 'e', 0, N_("Enable keymap."), 0, 0},
{"disable", 'd', 0, N_("Disable keymap."), 0, 0},
{"status", 's', 0, N_("Display keymap."), 0, 0},
{0, 0, 0, 0, 0, 0}
};
enum options
{
SETKEY_RESET,
SETKEY_ENABLE,
SETKEY_DISABLE,
SETKEY_STATUS,
};
static int
ishex (const char *str)
{
if (grub_strlen (str) < 3 || str[0] != '0')
return 0;
if (str[1] != 'x' && str[1] != 'X')
return 0;
return 1;
}
static int
parse_key (const char *str)
{
int i;
if (ishex (str))
return grub_strtol (str, NULL, 16);
if (grub_strlen (str) == 1)
return (int) str[0];
for (i = 0; i < (int) (sizeof (keysym_table) / sizeof (keysym_table[0])); i++)
{
if (grub_strcmp (str, keysym_table[i].name) == 0)
return keysym_table[i].code;
}
grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid key %s", str);
return 0;
}
static grub_err_t
grub_cmd_setkey (grub_extcmd_context_t ctxt, int argc, char **args)
{
struct grub_arg_list *state = ctxt->state;
int in, out;
if (state[SETKEY_ENABLE].set)
{
grub_keymap_enable ();
goto out;
}
if (state[SETKEY_DISABLE].set)
{
grub_keymap_disable ();
goto out;
}
if (state[SETKEY_RESET].set)
{
grub_keymap_reset ();
goto out;
}
if (state[SETKEY_STATUS].set)
{
grub_keymap_status ();
goto out;
}
if (argc != 2)
{
grub_printf
("Key names: 0-9, A-Z, a-z or escape, exclam, at, numbersign, dollar,"
"percent, caret, ampersand, asterisk, parenleft, parenright, minus,"
"underscore, equal, plus, backspace, tab, bracketleft, braceleft,"
"bracketright, braceright, enter, semicolon, colon, quote, doublequote,"
"backquote, tilde, backslash, bar, comma, less, period, greater,"
"slash, question, alt, space, delete, [ctrl|shift]F1-12."
"For Alt+ prefix with A, e.g. \'setkey at Aequal\'.");
goto out;
}
in = parse_key (args[1]);
out = parse_key (args[0]);
if (!in || !out)
goto out;
grub_keymap_add (in, out);
out:
return grub_errno;
}
static void grub_keymap_add_by_string(const char *src, const char *dst)
{
int in = 0;
int out = 0;
in = parse_key(dst);
out = parse_key(src);
if (in && out)
{
grub_keymap_add (in, out);
}
}
#include "keyboard_layout.c"
static grub_err_t grub_cmd_set_keylayout (grub_extcmd_context_t ctxt, int argc, char **args)
{
(void)ctxt;
(void)argc;
ventoy_set_keyboard_layout(args[0]);
return 0;
}
static grub_extcmd_t cmd, setcmd;
GRUB_MOD_INIT(setkey)
{
cmd = grub_register_extcmd ("setkey", grub_cmd_setkey, 0, N_("NEW_KEY USA_KEY"),
N_("Map default USA_KEY to NEW_KEY."), options);
setcmd = grub_register_extcmd ("set_keyboard_layout", grub_cmd_set_keylayout, 0, N_("layout"),
N_("Set keyboard layout."), NULL);
}
GRUB_MOD_FINI(setkey)
{
grub_unregister_extcmd (cmd);
}