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/* ----------------------------------------------------------------------- *
*
* Copyright 2004-2008 H. Peter Anvin - All Rights Reserved
*
* This program 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, Inc., 51 Franklin St, Fifth Floor,
* Boston MA 02110-1301, USA; either version 2 of the License, or
* (at your option) any later version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <dprintf.h>
#include <com32.h>
#include <sys/exec.h>
#include <sys/io.h>
#include <sys/module.h>
#include "core.h"
#include "menu.h"
#include "fs.h"
#include "config.h"
#include "localboot.h"
#include "bios.h"
#include <syslinux/bootrm.h>
#include <syslinux/movebits.h>
#include <syslinux/config.h>
#include <syslinux/boot.h>
const struct image_types image_boot_types[] = {
{ "localboot", IMAGE_TYPE_LOCALBOOT },
{ "kernel", IMAGE_TYPE_KERNEL },
{ "linux", IMAGE_TYPE_LINUX },
{ "boot", IMAGE_TYPE_BOOT },
{ "bss", IMAGE_TYPE_BSS },
{ "pxe", IMAGE_TYPE_PXE },
{ "fdimage", IMAGE_TYPE_FDIMAGE },
{ "comboot", IMAGE_TYPE_COMBOOT },
{ "com32", IMAGE_TYPE_COM32 },
{ "config", IMAGE_TYPE_CONFIG },
{ NULL, 0 },
};
extern int create_args_and_load(char *);
void execute(const char *cmdline, uint32_t type)
{
const char *kernel, *args;
const char *p;
com32sys_t ireg;
char *q;
memset(&ireg, 0, sizeof ireg);
/* for parameter will be passed to __intcall, we need use
* lmalloc a block of low memory */
q = lmalloc(128);
if (!q) {
printf("%s(): Fail to lmalloc a buffer to exec %s\n",
__func__, cmdline);
return;
}
kernel = q;
p = cmdline;
while (*p && !my_isspace(*p))
*q++ = *p++;
*q++ = '\0';
args = q;
while (*p && my_isspace(*p))
p++;
strcpy(q, p);
dprintf("kernel is %s, args = %s type = %d \n", kernel, args, type);
if (kernel[0] == '.') {
/* It might be a type specifier */
const struct image_types *t;
for (t = image_boot_types; t->name; t++) {
if (!strcmp(kernel + 1, t->name)) {
/* Strip the type specifier and retry */
execute(p, t->type);
return;
}
}
}
if (type == IMAGE_TYPE_COM32) {
/* new entry for elf format c32 */
create_args_and_load((char *)cmdline);
/*
* The old COM32 module code would run the module then
* drop the user back at the command prompt,
* irrespective of how the COM32 module was loaded,
* e.g. from vesamenu.c32.
*/
unload_modules_since("ldlinux.c32");
ldlinux_enter_command(!noescape);
} else if (type == IMAGE_TYPE_CONFIG) {
char *argv[] = { "ldlinux.c32", NULL };
/* kernel contains the config file name */
realpath(ConfigName, kernel, FILENAME_MAX);
/* If we got anything on the command line, do a chdir */
if (*args)
mangle_name(config_cwd, args);
start_ldlinux(argv);
} else if (type == IMAGE_TYPE_LOCALBOOT) {
local_boot(strtoul(kernel, NULL, 0));
} else if (type == IMAGE_TYPE_PXE || type == IMAGE_TYPE_BSS ||
type == IMAGE_TYPE_BOOT) {
chainboot_file(kernel, type);
} else {
/* Need add one item for kernel load, as we don't use
* the assembly runkernel.inc any more */
new_linux_kernel((char *)kernel, (char *)cmdline);
}
lfree((void *)kernel);
/* If this returns, something went bad; return to menu */
}
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