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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2013 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/extcmd.h>
#include <grub/mm.h>
#include <grub/err.h>
#include <grub/dl.h>
#include <grub/file.h>
#include <grub/normal.h>
#include <grub/script_sh.h>
#include <grub/i18n.h>
#include <grub/term.h>
#include <grub/syslinux_parse.h>
#include <grub/crypto.h>
#include <grub/auth.h>
#include <grub/disk.h>
#include <grub/partition.h>
GRUB_MOD_LICENSE ("GPLv3+");
/* Helper for syslinux_file. */
static grub_err_t
syslinux_file_getline (char **line, int cont __attribute__ ((unused)),
void *data __attribute__ ((unused)))
{
*line = 0;
return GRUB_ERR_NONE;
}
static const struct grub_arg_option options[] =
{
{"root", 'r', 0,
N_("root directory of the syslinux disk [default=/]."),
N_("DIR"), ARG_TYPE_STRING},
{"cwd", 'c', 0,
N_("current directory of syslinux [default is parent directory of input file]."),
N_("DIR"), ARG_TYPE_STRING},
{"isolinux", 'i', 0, N_("assume input is an isolinux configuration file."), 0, 0},
{"pxelinux", 'p', 0, N_("assume input is a pxelinux configuration file."), 0, 0},
{"syslinux", 's', 0, N_("assume input is a syslinux configuration file."), 0, 0},
{0, 0, 0, 0, 0, 0}
};
enum
{
OPTION_ROOT,
OPTION_CWD,
OPTION_ISOLINUX,
OPTION_PXELINUX,
OPTION_SYSLINUX
};
static grub_err_t
syslinux_file (grub_extcmd_context_t ctxt, const char *filename)
{
char *result;
const char *root = ctxt->state[OPTION_ROOT].set ? ctxt->state[OPTION_ROOT].arg : "/";
const char *cwd = ctxt->state[OPTION_CWD].set ? ctxt->state[OPTION_CWD].arg : NULL;
grub_syslinux_flavour_t flav = GRUB_SYSLINUX_UNKNOWN;
char *cwdf = NULL;
grub_menu_t menu;
if (ctxt->state[OPTION_ISOLINUX].set)
flav = GRUB_SYSLINUX_ISOLINUX;
if (ctxt->state[OPTION_PXELINUX].set)
flav = GRUB_SYSLINUX_PXELINUX;
if (ctxt->state[OPTION_SYSLINUX].set)
flav = GRUB_SYSLINUX_SYSLINUX;
if (!cwd)
{
char *p;
cwdf = grub_strdup (filename);
if (!cwdf)
return grub_errno;
p = grub_strrchr (cwdf, '/');
if (!p)
{
grub_free (cwdf);
cwd = "/";
cwdf = NULL;
}
else
{
*p = '\0';
cwd = cwdf;
}
}
grub_dprintf ("syslinux",
"transforming syslinux config %s, root = %s, cwd = %s\n",
filename, root, cwd);
result = grub_syslinux_config_file (root, root, cwd, cwd, filename, flav);
if (!result)
return grub_errno;
grub_dprintf ("syslinux", "syslinux config transformed\n");
menu = grub_env_get_menu ();
if (! menu)
{
menu = grub_zalloc (sizeof (*menu));
if (! menu)
{
grub_free (result);
return grub_errno;
}
grub_env_set_menu (menu);
}
grub_normal_parse_line (result, syslinux_file_getline, NULL);
grub_print_error ();
grub_free (result);
grub_free (cwdf);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_cmd_syslinux_source (grub_extcmd_context_t ctxt,
int argc, char **args)
{
int new_env, extractor;
grub_err_t ret;
if (argc != 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
extractor = (ctxt->extcmd->cmd->name[0] == 'e');
new_env = (ctxt->extcmd->cmd->name[extractor ? (sizeof ("extract_syslinux_entries_") - 1)
: (sizeof ("syslinux_") - 1)] == 'c');
if (new_env)
grub_cls ();
if (new_env && !extractor)
grub_env_context_open ();
if (extractor)
grub_env_extractor_open (!new_env);
ret = syslinux_file (ctxt, args[0]);
if (new_env)
{
grub_menu_t menu;
menu = grub_env_get_menu ();
if (menu && menu->size)
grub_show_menu (menu, 1, 0);
if (!extractor)
grub_env_context_close ();
}
if (extractor)
grub_env_extractor_close (!new_env);
return ret;
}
static grub_extcmd_t cmd_source, cmd_configfile;
static grub_extcmd_t cmd_source_extract, cmd_configfile_extract;
GRUB_MOD_INIT(syslinuxcfg)
{
cmd_source
= grub_register_extcmd ("syslinux_source",
grub_cmd_syslinux_source, 0,
N_("FILE"),
/* TRANSLATORS: "syslinux config" means
"config as used by syslinux". */
N_("Execute syslinux config in same context"),
options);
cmd_configfile
= grub_register_extcmd ("syslinux_configfile",
grub_cmd_syslinux_source, 0,
N_("FILE"),
N_("Execute syslinux config in new context"),
options);
cmd_source_extract
= grub_register_extcmd ("extract_syslinux_entries_source",
grub_cmd_syslinux_source, 0,
N_("FILE"),
N_("Execute syslinux config in same context taking only menu entries"),
options);
cmd_configfile_extract
= grub_register_extcmd ("extract_syslinux_entries_configfile",
grub_cmd_syslinux_source, 0,
N_("FILE"),
N_("Execute syslinux config in new context taking only menu entries"),
options);
}
GRUB_MOD_FINI(syslinuxcfg)
{
grub_unregister_extcmd (cmd_source);
grub_unregister_extcmd (cmd_configfile);
grub_unregister_extcmd (cmd_source_extract);
grub_unregister_extcmd (cmd_configfile_extract);
}
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