vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity
grub/grub-core/commands/legacycfg.c
Vladimir 'phcoder' Serbinenko 2a87d7d1b6 Remove biglinux FIXME comment. It's a non-issue
2010-08-27 22:34:25 +02:00

414 lines
9.5 KiB
C
Raw Blame History

/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2010 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/types.h>
#include <grub/misc.h>
#include <grub/command.h>
#include <grub/mm.h>
#include <grub/err.h>
#include <grub/dl.h>
#include <grub/file.h>
#include <grub/gzio.h>
#include <grub/normal.h>
#include <grub/script_sh.h>
#include <grub/i18n.h>
#include <grub/term.h>
#include <grub/legacy_parse.h>
static grub_err_t
legacy_file (const char *filename)
{
grub_file_t file;
char *entryname = NULL, *entrysrc = NULL;
grub_menu_t menu;
file = grub_gzfile_open (filename, 1);
if (! file)
return grub_errno;
menu = grub_env_get_menu ();
if (! menu)
{
menu = grub_zalloc (sizeof (*menu));
if (! menu)
return grub_errno;
grub_env_set_menu (menu);
}
while (1)
{
char *buf = grub_file_getline (file);
char *parsed;
if (!buf && grub_errno)
{
grub_file_close (file);
return grub_errno;
}
if (!buf)
break;
{
char *oldname = NULL;
oldname = entryname;
parsed = grub_legacy_parse (buf, &entryname);
grub_free (buf);
if (oldname != entryname && oldname)
{
const char **args = grub_malloc (sizeof (args[0]));
if (!args)
{
grub_file_close (file);
return grub_errno;
}
args[0] = oldname;
grub_normal_add_menu_entry (1, args, entrysrc);
}
}
if (parsed && !entryname)
{
auto grub_err_t getline (char **line, int cont);
grub_err_t getline (char **line __attribute__ ((unused)),
int cont __attribute__ ((unused)))
{
return GRUB_ERR_NONE;
}
grub_normal_parse_line (parsed, getline);
grub_print_error ();
grub_free (parsed);
}
else if (parsed)
{
if (!entrysrc)
entrysrc = parsed;
else
{
char *t;
t = entrysrc;
entrysrc = grub_realloc (entrysrc, grub_strlen (entrysrc)
+ grub_strlen (parsed) + 1);
if (!entrysrc)
{
grub_free (t);
grub_free (parsed);
return grub_errno;
}
grub_memcpy (entrysrc + grub_strlen (entrysrc), parsed,
grub_strlen (parsed) + 1);
grub_free (parsed);
parsed = NULL;
}
}
}
grub_file_close (file);
if (entryname)
{
const char **args = grub_malloc (sizeof (args[0]));
if (!args)
{
grub_file_close (file);
return grub_errno;
}
args[0] = entryname;
grub_normal_add_menu_entry (1, args, entrysrc);
}
if (menu && menu->size)
grub_show_menu (menu, 1);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_cmd_legacy_source (struct grub_command *cmd __attribute__ ((unused)),
int argc, char **args)
{
if (argc != 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "file name required");
return legacy_file (args[0]);
}
static grub_err_t
grub_cmd_legacy_configfile (struct grub_command *cmd __attribute__ ((unused)),
int argc, char **args)
{
grub_err_t ret;
if (argc != 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "file name required");
grub_cls ();
grub_env_context_open (1);
ret = legacy_file (args[0]);
grub_env_context_close ();
return ret;
}
static enum
{
GUESS_IT, LINUX, MULTIBOOT, KFREEBSD, KNETBSD, KOPENBSD
} kernel_type;
static grub_err_t
grub_cmd_legacy_kernel (struct grub_command *mycmd __attribute__ ((unused)),
int argc, char **args)
{
int i;
int no_mem_option = 0;
struct grub_command *cmd;
for (i = 0; i < 2; i++)
{
/* FIXME: really support this. */
if (argc >= 1 && grub_strcmp (args[0], "--no-mem-option") == 0)
{
no_mem_option = 1;
argc--;
args++;
continue;
}
/* linux16 handles both zImages and bzImages. */
if (argc >= 1 && (grub_strcmp (args[0], "--type=linux") == 0
|| grub_strcmp (args[0], "--type=biglinux") == 0))
{
kernel_type = LINUX;
argc--;
args++;
continue;
}
if (argc >= 1 && grub_strcmp (args[0], "--type=multiboot") == 0)
{
kernel_type = MULTIBOOT;
argc--;
args++;
continue;
}
if (argc >= 1 && grub_strcmp (args[0], "--type=freebsd") == 0)
{
kernel_type = KFREEBSD;
argc--;
args++;
continue;
}
if (argc >= 1 && grub_strcmp (args[0], "--type=openbsd") == 0)
{
kernel_type = KOPENBSD;
argc--;
args++;
continue;
}
if (argc >= 1 && grub_strcmp (args[0], "--type=netbsd") == 0)
{
kernel_type = KNETBSD;
argc--;
args++;
continue;
}
}
if (!argc)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "filename required");
do
{
/* First try Linux. */
if (kernel_type == GUESS_IT || kernel_type == LINUX)
{
cmd = grub_command_find ("linux16");
if (cmd)
{
if (!(cmd->func) (cmd, argc, args))
{
kernel_type = LINUX;
return GRUB_ERR_NONE;
}
}
grub_errno = GRUB_ERR_NONE;
}
/* Then multiboot. */
/* FIXME: dublicate multiboot filename. */
if (kernel_type == GUESS_IT || kernel_type == MULTIBOOT)
{
cmd = grub_command_find ("multiboot");
if (cmd)
{
if (!(cmd->func) (cmd, argc, args))
{
kernel_type = MULTIBOOT;
return GRUB_ERR_NONE;
}
}
grub_errno = GRUB_ERR_NONE;
}
/* k*BSD didn't really work well with grub-legacy. */
if (kernel_type == GUESS_IT || kernel_type == KFREEBSD)
{
cmd = grub_command_find ("kfreebsd");
if (cmd)
{
if (!(cmd->func) (cmd, argc, args))
{
kernel_type = KFREEBSD;
return GRUB_ERR_NONE;
}
}
grub_errno = GRUB_ERR_NONE;
}
if (kernel_type == GUESS_IT || kernel_type == KNETBSD)
{
cmd = grub_command_find ("knetbsd");
if (cmd)
{
if (!(cmd->func) (cmd, argc, args))
{
kernel_type = KNETBSD;
return GRUB_ERR_NONE;
}
}
grub_errno = GRUB_ERR_NONE;
}
if (kernel_type == GUESS_IT || kernel_type == KOPENBSD)
{
cmd = grub_command_find ("kopenbsd");
if (cmd)
{
if (!(cmd->func) (cmd, argc, args))
{
kernel_type = KOPENBSD;
return GRUB_ERR_NONE;
}
}
grub_errno = GRUB_ERR_NONE;
}
}
while (0);
return grub_error (GRUB_ERR_BAD_OS, "couldn't load file %s\n",
args[0]);
}
static grub_err_t
grub_cmd_legacy_initrd (struct grub_command *mycmd __attribute__ ((unused)),
int argc, char **args)
{
struct grub_command *cmd;
if (kernel_type == LINUX)
{
cmd = grub_command_find ("initrd16");
if (!cmd)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "command initrd16 not found");
return cmd->func (cmd, argc, args);
}
if (kernel_type == MULTIBOOT)
{
/* FIXME: dublicate module filename. */
cmd = grub_command_find ("module");
if (!cmd)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "command module not found");
return cmd->func (cmd, argc, args);
}
return grub_error (GRUB_ERR_BAD_ARGUMENT,
"no kernel with module support is loaded in legacy way");
}
static grub_err_t
grub_cmd_legacy_color (struct grub_command *mycmd __attribute__ ((unused)),
int argc, char **args)
{
if (argc < 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "color required");
grub_env_set ("color_normal", args[0]);
if (argc >= 2)
grub_env_set ("color_highlight", args[1]);
else
{
char *slash = grub_strchr (args[0], '/');
char *invert;
grub_size_t len;
len = grub_strlen (args[0]);
if (!slash)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "bad color specification %s",
args[0]);
invert = grub_malloc (len + 1);
if (!invert)
return grub_errno;
grub_memcpy (invert, slash + 1, len - (slash - args[0]) - 1);
invert[len - (slash - args[0]) - 1] = '/';
grub_memcpy (invert + len - (slash - args[0]), args[0], slash - args[0]);
invert[len] = 0;
grub_env_set ("color_highlight", invert);
grub_free (invert);
}
return grub_errno;
}
static grub_command_t cmd_source, cmd_configfile, cmd_kernel, cmd_initrd;
static grub_command_t cmd_color;
GRUB_MOD_INIT(legacycfg)
{
cmd_source = grub_register_command ("legacy_source",
grub_cmd_legacy_source,
N_("FILE"), N_("Parse legacy config"));
cmd_kernel = grub_register_command ("legacy_kernel",
grub_cmd_legacy_kernel,
N_("[--no-mem-option] [--type=TYPE] FILE [ARG ...]"),
N_("Simulate grub-legacy kernel command"));
cmd_initrd = grub_register_command ("legacy_initrd",
grub_cmd_legacy_initrd,
N_("FILE [ARG ...]"),
N_("Simulate grub-legacy initrd command"));
cmd_configfile = grub_register_command ("legacy_configfile",
grub_cmd_legacy_configfile,
N_("FILE"),
N_("Parse legacy config"));
cmd_color = grub_register_command ("legacy_color",
grub_cmd_legacy_color,
N_("NORMAL [HIGHLIGHT]"),
N_("Simulate grub-legacy color command"));
}
GRUB_MOD_FINI(legacycfg)
{
grub_unregister_command (cmd_source);
grub_unregister_command (cmd_configfile);
grub_unregister_command (cmd_kernel);
grub_unregister_command (cmd_initrd);
grub_unregister_command (cmd_color);
}
Reference in a new issue View git blame Copy permalink