[people/ms/u-boot.git] / common / autoboot.c

/*
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <autoboot.h>
#include <bootretry.h>
#include <cli.h>
#include <fdtdec.h>
#include <menu.h>
#include <post.h>
#include <u-boot/sha256.h>

DECLARE_GLOBAL_DATA_PTR;

#define MAX_DELAY_STOP_STR 32

#ifndef DEBUG_BOOTKEYS
#define DEBUG_BOOTKEYS 0
#endif
#define debug_bootkeys(fmt, args...)		\
	debug_cond(DEBUG_BOOTKEYS, fmt, ##args)

/* Stored value of bootdelay, used by autoboot_command() */
static int stored_bootdelay;

#if defined(CONFIG_AUTOBOOT_KEYED)
#if defined(CONFIG_AUTOBOOT_STOP_STR_SHA256)

/*
 * Use a "constant-length" time compare function for this
 * hash compare:
 *
 * https://crackstation.net/hashing-security.htm
 */
static int slow_equals(u8 *a, u8 *b, int len)
{
	int diff = 0;
	int i;

	for (i = 0; i < len; i++)
		diff |= a[i] ^ b[i];

	return diff == 0;
}

static int passwd_abort(uint64_t etime)
{
	const char *sha_env_str = getenv("bootstopkeysha256");
	u8 sha_env[SHA256_SUM_LEN];
	u8 sha[SHA256_SUM_LEN];
	char presskey[MAX_DELAY_STOP_STR];
	const char *algo_name = "sha256";
	u_int presskey_len = 0;
	int abort = 0;
	int size;
	int ret;

	if (sha_env_str == NULL)
		sha_env_str = CONFIG_AUTOBOOT_STOP_STR_SHA256;

	/*
	 * Generate the binary value from the environment hash value
	 * so that we can compare this value with the computed hash
	 * from the user input
	 */
	ret = hash_parse_string(algo_name, sha_env_str, sha_env);
	if (ret) {
		printf("Hash %s not supported!\n", algo_name);
		return 0;
	}

	/*
	 * We don't know how long the stop-string is, so we need to
	 * generate the sha256 hash upon each input character and
	 * compare the value with the one saved in the environment
	 */
	do {
		if (tstc()) {
			/* Check for input string overflow */
			if (presskey_len >= MAX_DELAY_STOP_STR)
				return 0;

			presskey[presskey_len++] = getc();

			/* Calculate sha256 upon each new char */
			hash_block(algo_name, (const void *)presskey,
				   presskey_len, sha, &size);

			/* And check if sha matches saved value in env */
			if (slow_equals(sha, sha_env, SHA256_SUM_LEN))
				abort = 1;
		}
	} while (!abort && get_ticks() <= etime);

	return abort;
}
#else
static int passwd_abort(uint64_t etime)
{
	int abort = 0;
	struct {
		char *str;
		u_int len;
		int retry;
	}
	delaykey[] = {
		{ .str = getenv("bootdelaykey"),  .retry = 1 },
		{ .str = getenv("bootstopkey"),   .retry = 0 },
	};

	char presskey[MAX_DELAY_STOP_STR];
	u_int presskey_len = 0;
	u_int presskey_max = 0;
	u_int i;

#  ifdef CONFIG_AUTOBOOT_DELAY_STR
	if (delaykey[0].str == NULL)
		delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR;
#  endif
#  ifdef CONFIG_AUTOBOOT_STOP_STR
	if (delaykey[1].str == NULL)
		delaykey[1].str = CONFIG_AUTOBOOT_STOP_STR;
#  endif

	for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i++) {
		delaykey[i].len = delaykey[i].str == NULL ?
				    0 : strlen(delaykey[i].str);
		delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ?
				    MAX_DELAY_STOP_STR : delaykey[i].len;

		presskey_max = presskey_max > delaykey[i].len ?
				    presskey_max : delaykey[i].len;

		debug_bootkeys("%s key:<%s>\n",
			       delaykey[i].retry ? "delay" : "stop",
			       delaykey[i].str ? delaykey[i].str : "NULL");
	}

	/* In order to keep up with incoming data, check timeout only
	 * when catch up.
	 */
	do {
		if (tstc()) {
			if (presskey_len < presskey_max) {
				presskey[presskey_len++] = getc();
			} else {
				for (i = 0; i < presskey_max - 1; i++)
					presskey[i] = presskey[i + 1];

				presskey[i] = getc();
			}
		}

		for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i++) {
			if (delaykey[i].len > 0 &&
			    presskey_len >= delaykey[i].len &&
				memcmp(presskey + presskey_len -
					delaykey[i].len, delaykey[i].str,
					delaykey[i].len) == 0) {
					debug_bootkeys("got %skey\n",
						delaykey[i].retry ? "delay" :
						"stop");

				/* don't retry auto boot */
				if (!delaykey[i].retry)
					bootretry_dont_retry();
				abort = 1;
			}
		}
	} while (!abort && get_ticks() <= etime);

	return abort;
}
#endif

/***************************************************************************
 * Watch for 'delay' seconds for autoboot stop or autoboot delay string.
 * returns: 0 -  no key string, allow autoboot 1 - got key string, abort
 */
static int abortboot_keyed(int bootdelay)
{
	int abort;
	uint64_t etime = endtick(bootdelay);

#ifndef CONFIG_ZERO_BOOTDELAY_CHECK
	if (bootdelay == 0)
		return 0;
#endif

#  ifdef CONFIG_AUTOBOOT_PROMPT
	/*
	 * CONFIG_AUTOBOOT_PROMPT includes the %d for all boards.
	 * To print the bootdelay value upon bootup.
	 */
	printf(CONFIG_AUTOBOOT_PROMPT, bootdelay);
#  endif

	abort = passwd_abort(etime);
	if (!abort)
		debug_bootkeys("key timeout\n");

#ifdef CONFIG_SILENT_CONSOLE
	if (abort)
		gd->flags &= ~GD_FLG_SILENT;
#endif

	return abort;
}

# else	/* !defined(CONFIG_AUTOBOOT_KEYED) */

#ifdef CONFIG_MENUKEY
static int menukey;
#endif

static int abortboot_normal(int bootdelay)
{
	int abort = 0;
	unsigned long ts;

#ifdef CONFIG_MENUPROMPT
	printf(CONFIG_MENUPROMPT);
#else
	if (bootdelay >= 0)
		printf("Hit any key to stop autoboot: %2d ", bootdelay);
#endif

#if defined CONFIG_ZERO_BOOTDELAY_CHECK
	/*
	 * Check if key already pressed
	 * Don't check if bootdelay < 0
	 */
	if (bootdelay >= 0) {
		if (tstc()) {	/* we got a key press	*/
			(void) getc();  /* consume input	*/
			puts("\b\b\b 0");
			abort = 1;	/* don't auto boot	*/
		}
	}
#endif

	while ((bootdelay > 0) && (!abort)) {
		--bootdelay;
		/* delay 1000 ms */
		ts = get_timer(0);
		do {
			if (tstc()) {	/* we got a key press	*/
				abort  = 1;	/* don't auto boot	*/
				bootdelay = 0;	/* no more delay	*/
# ifdef CONFIG_MENUKEY
				menukey = getc();
# else
				(void) getc();  /* consume input	*/
# endif
				break;
			}
			udelay(10000);
		} while (!abort && get_timer(ts) < 1000);

		printf("\b\b\b%2d ", bootdelay);
	}

	putc('\n');

#ifdef CONFIG_SILENT_CONSOLE
	if (abort)
		gd->flags &= ~GD_FLG_SILENT;
#endif

	return abort;
}
# endif	/* CONFIG_AUTOBOOT_KEYED */

static int abortboot(int bootdelay)
{
#ifdef CONFIG_AUTOBOOT_KEYED
	return abortboot_keyed(bootdelay);
#else
	return abortboot_normal(bootdelay);
#endif
}

static void process_fdt_options(const void *blob)
{
#if defined(CONFIG_OF_CONTROL)
	ulong addr;

	/* Add an env variable to point to a kernel payload, if available */
	addr = fdtdec_get_config_int(gd->fdt_blob, "kernel-offset", 0);
	if (addr)
		setenv_addr("kernaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));

	/* Add an env variable to point to a root disk, if available */
	addr = fdtdec_get_config_int(gd->fdt_blob, "rootdisk-offset", 0);
	if (addr)
		setenv_addr("rootaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));
#endif /* CONFIG_OF_CONTROL */
}

const char *bootdelay_process(void)
{
	char *s;
	int bootdelay;
#ifdef CONFIG_BOOTCOUNT_LIMIT
	unsigned long bootcount = 0;
	unsigned long bootlimit = 0;
#endif /* CONFIG_BOOTCOUNT_LIMIT */

#ifdef CONFIG_BOOTCOUNT_LIMIT
	bootcount = bootcount_load();
	bootcount++;
	bootcount_store(bootcount);
	setenv_ulong("bootcount", bootcount);
	bootlimit = getenv_ulong("bootlimit", 10, 0);
#endif /* CONFIG_BOOTCOUNT_LIMIT */

	s = getenv("bootdelay");
	bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;

#ifdef CONFIG_OF_CONTROL
	bootdelay = fdtdec_get_config_int(gd->fdt_blob, "bootdelay",
			bootdelay);
#endif

	debug("### main_loop entered: bootdelay=%d\n\n", bootdelay);

#if defined(CONFIG_MENU_SHOW)
	bootdelay = menu_show(bootdelay);
#endif
	bootretry_init_cmd_timeout();

#ifdef CONFIG_POST
	if (gd->flags & GD_FLG_POSTFAIL) {
		s = getenv("failbootcmd");
	} else
#endif /* CONFIG_POST */
#ifdef CONFIG_BOOTCOUNT_LIMIT
	if (bootlimit && (bootcount > bootlimit)) {
		printf("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n",
		       (unsigned)bootlimit);
		s = getenv("altbootcmd");
	} else
#endif /* CONFIG_BOOTCOUNT_LIMIT */
		s = getenv("bootcmd");

	process_fdt_options(gd->fdt_blob);
	stored_bootdelay = bootdelay;

	return s;
}

void autoboot_command(const char *s)
{
	debug("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>");

	if (stored_bootdelay != -1 && s && !abortboot(stored_bootdelay)) {
#if defined(CONFIG_AUTOBOOT_KEYED) && !defined(CONFIG_AUTOBOOT_KEYED_CTRLC)
		int prev = disable_ctrlc(1);	/* disable Control C checking */
#endif

		run_command_list(s, -1, 0);

#if defined(CONFIG_AUTOBOOT_KEYED) && !defined(CONFIG_AUTOBOOT_KEYED_CTRLC)
		disable_ctrlc(prev);	/* restore Control C checking */
#endif
	}

#ifdef CONFIG_MENUKEY
	if (menukey == CONFIG_MENUKEY) {
		s = getenv("menucmd");
		if (s)
			run_command_list(s, -1, 0);
	}
#endif /* CONFIG_MENUKEY */
}
Commit	Line	Data
66ded17d SG	1	/*
	2	* (C) Copyright 2000
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
	5	* SPDX-License-Identifier: GPL-2.0+
	6	*/
	7
	8	#include <common.h>
39e1230e	9	#include <autoboot.h>
0098e179	10	#include <bootretry.h>
66ded17d SG	11	#include <cli.h>
	12	#include <fdtdec.h>
	13	#include <menu.h>
	14	#include <post.h>
8f0b1e24	15	#include <u-boot/sha256.h>
66ded17d SG	16
	17	DECLARE_GLOBAL_DATA_PTR;
	18
	19	#define MAX_DELAY_STOP_STR 32
	20
	21	#ifndef DEBUG_BOOTKEYS
	22	#define DEBUG_BOOTKEYS 0
	23	#endif
	24	#define debug_bootkeys(fmt, args...) \
	25	debug_cond(DEBUG_BOOTKEYS, fmt, ##args)
	26
affb2156 SG	27	/* Stored value of bootdelay, used by autoboot_command() */
	28	static int stored_bootdelay;
	29
8f0b1e24 SR	30	#if defined(CONFIG_AUTOBOOT_KEYED)
	31	#if defined(CONFIG_AUTOBOOT_STOP_STR_SHA256)
	32
	33	/*
	34	* Use a "constant-length" time compare function for this
	35	* hash compare:
	36	*
	37	* https://crackstation.net/hashing-security.htm
66ded17d	38	*/
8f0b1e24 SR	39	static int slow_equals(u8 a, u8 b, int len)
	40	{
	41	int diff = 0;
	42	int i;
	43
	44	for (i = 0; i < len; i++)
	45	diff \|= a[i] ^ b[i];
	46
	47	return diff == 0;
	48	}
	49
	50	static int passwd_abort(uint64_t etime)
	51	{
	52	const char *sha_env_str = getenv("bootstopkeysha256");
	53	u8 sha_env[SHA256_SUM_LEN];
	54	u8 sha[SHA256_SUM_LEN];
	55	char presskey[MAX_DELAY_STOP_STR];
	56	const char *algo_name = "sha256";
	57	u_int presskey_len = 0;
	58	int abort = 0;
	59	int size;
	60	int ret;
	61
	62	if (sha_env_str == NULL)
	63	sha_env_str = CONFIG_AUTOBOOT_STOP_STR_SHA256;
	64
	65	/*
	66	* Generate the binary value from the environment hash value
	67	* so that we can compare this value with the computed hash
	68	* from the user input
	69	*/
	70	ret = hash_parse_string(algo_name, sha_env_str, sha_env);
	71	if (ret) {
	72	printf("Hash %s not supported!\n", algo_name);
	73	return 0;
	74	}
	75
	76	/*
	77	* We don't know how long the stop-string is, so we need to
	78	* generate the sha256 hash upon each input character and
	79	* compare the value with the one saved in the environment
	80	*/
	81	do {
	82	if (tstc()) {
	83	/* Check for input string overflow */
	84	if (presskey_len >= MAX_DELAY_STOP_STR)
	85	return 0;
	86
	87	presskey[presskey_len++] = getc();
	88
	89	/* Calculate sha256 upon each new char */
	90	hash_block(algo_name, (const void *)presskey,
	91	presskey_len, sha, &size);
	92
	93	/* And check if sha matches saved value in env */
	94	if (slow_equals(sha, sha_env, SHA256_SUM_LEN))
	95	abort = 1;
	96	}
	97	} while (!abort && get_ticks() <= etime);
	98
	99	return abort;
	100	}
	101	#else
	102	static int passwd_abort(uint64_t etime)
66ded17d SG	103	{
66ded17d SG	104	int abort = 0;
66ded17d SG	105	struct {
	106	char *str;
	107	u_int len;
	108	int retry;
	109	}
	110	delaykey[] = {
9e546ee9	111	{ .str = getenv("bootdelaykey"), .retry = 1 },
9e546ee9	112	{ .str = getenv("bootstopkey"), .retry = 0 },
66ded17d SG	113	};
	114
	115	char presskey[MAX_DELAY_STOP_STR];
	116	u_int presskey_len = 0;
	117	u_int presskey_max = 0;
	118	u_int i;
	119
66ded17d SG	120	# ifdef CONFIG_AUTOBOOT_DELAY_STR
	121	if (delaykey[0].str == NULL)
	122	delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR;
	123	# endif
66ded17d	124	# ifdef CONFIG_AUTOBOOT_STOP_STR
2d908fa0 SR	125	if (delaykey[1].str == NULL)
2d908fa0 SR	126	delaykey[1].str = CONFIG_AUTOBOOT_STOP_STR;
66ded17d SG	127	# endif
	128
	129	for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i++) {
	130	delaykey[i].len = delaykey[i].str == NULL ?
	131	0 : strlen(delaykey[i].str);
	132	delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ?
	133	MAX_DELAY_STOP_STR : delaykey[i].len;
	134
	135	presskey_max = presskey_max > delaykey[i].len ?
	136	presskey_max : delaykey[i].len;
	137
	138	debug_bootkeys("%s key:<%s>\n",
	139	delaykey[i].retry ? "delay" : "stop",
	140	delaykey[i].str ? delaykey[i].str : "NULL");
	141	}
	142
	143	/* In order to keep up with incoming data, check timeout only
	144	* when catch up.
	145	*/
	146	do {
	147	if (tstc()) {
	148	if (presskey_len < presskey_max) {
	149	presskey[presskey_len++] = getc();
	150	} else {
	151	for (i = 0; i < presskey_max - 1; i++)
	152	presskey[i] = presskey[i + 1];
	153
	154	presskey[i] = getc();
	155	}
	156	}
	157
	158	for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i++) {
	159	if (delaykey[i].len > 0 &&
	160	presskey_len >= delaykey[i].len &&
	161	memcmp(presskey + presskey_len -
	162	delaykey[i].len, delaykey[i].str,
	163	delaykey[i].len) == 0) {
	164	debug_bootkeys("got %skey\n",
	165	delaykey[i].retry ? "delay" :
	166	"stop");
	167
66ded17d SG	168	/* don't retry auto boot */
	169	if (!delaykey[i].retry)
	170	bootretry_dont_retry();
66ded17d SG	171	abort = 1;
	172	}
	173	}
	174	} while (!abort && get_ticks() <= etime);
	175
8f0b1e24 SR	176	return abort;
	177	}
	178	#endif
	179
	180	/***************************************************************************
	181	* Watch for 'delay' seconds for autoboot stop or autoboot delay string.
	182	* returns: 0 - no key string, allow autoboot 1 - got key string, abort
	183	*/
	184	static int abortboot_keyed(int bootdelay)
	185	{
	186	int abort;
	187	uint64_t etime = endtick(bootdelay);
	188
	189	#ifndef CONFIG_ZERO_BOOTDELAY_CHECK
	190	if (bootdelay == 0)
	191	return 0;
	192	#endif
	193
	194	# ifdef CONFIG_AUTOBOOT_PROMPT
	195	/*
	196	* CONFIG_AUTOBOOT_PROMPT includes the %d for all boards.
	197	* To print the bootdelay value upon bootup.
	198	*/
	199	printf(CONFIG_AUTOBOOT_PROMPT, bootdelay);
	200	# endif
	201
	202	abort = passwd_abort(etime);
66ded17d SG	203	if (!abort)
	204	debug_bootkeys("key timeout\n");
	205
	206	#ifdef CONFIG_SILENT_CONSOLE
	207	if (abort)
	208	gd->flags &= ~GD_FLG_SILENT;
	209	#endif
	210
	211	return abort;
	212	}
	213
	214	# else /* !defined(CONFIG_AUTOBOOT_KEYED) */
	215
	216	#ifdef CONFIG_MENUKEY
	217	static int menukey;
	218	#endif
	219
	220	static int abortboot_normal(int bootdelay)
	221	{
	222	int abort = 0;
	223	unsigned long ts;
	224
	225	#ifdef CONFIG_MENUPROMPT
	226	printf(CONFIG_MENUPROMPT);
	227	#else
	228	if (bootdelay >= 0)
	229	printf("Hit any key to stop autoboot: %2d ", bootdelay);
	230	#endif
	231
	232	#if defined CONFIG_ZERO_BOOTDELAY_CHECK
	233	/*
	234	* Check if key already pressed
	235	* Don't check if bootdelay < 0
	236	*/
	237	if (bootdelay >= 0) {
	238	if (tstc()) { /* we got a key press */
	239	(void) getc(); /* consume input */
	240	puts("\b\b\b 0");
	241	abort = 1; /* don't auto boot */
	242	}
	243	}
	244	#endif
	245
	246	while ((bootdelay > 0) && (!abort)) {
	247	--bootdelay;
	248	/* delay 1000 ms */
	249	ts = get_timer(0);
	250	do {
	251	if (tstc()) { /* we got a key press */
	252	abort = 1; /* don't auto boot */
	253	bootdelay = 0; /* no more delay */
	254	# ifdef CONFIG_MENUKEY
	255	menukey = getc();
	256	# else
	257	(void) getc(); /* consume input */
	258	# endif
	259	break;
	260	}
	261	udelay(10000);
	262	} while (!abort && get_timer(ts) < 1000);
	263
	264	printf("\b\b\b%2d ", bootdelay);
	265	}
	266
267	putc('\n');
268
269	#ifdef CONFIG_SILENT_CONSOLE
270	if (abort)
271	gd->flags &= ~GD_FLG_SILENT;
272	#endif
273
274	return abort;
275	}
276	# endif /* CONFIG_AUTOBOOT_KEYED */
277
278	static int abortboot(int bootdelay)
279	{
280	#ifdef CONFIG_AUTOBOOT_KEYED
281	return abortboot_keyed(bootdelay);
282	#else
283	return abortboot_normal(bootdelay);
284	#endif
285	}
286
66ded17d SG	287	static void process_fdt_options(const void *blob)
66ded17d SG	288	{
affb2156	289	#if defined(CONFIG_OF_CONTROL)
66ded17d SG	290	ulong addr;
	291
	292	/* Add an env variable to point to a kernel payload, if available */
	293	addr = fdtdec_get_config_int(gd->fdt_blob, "kernel-offset", 0);
	294	if (addr)
	295	setenv_addr("kernaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));
	296
	297	/* Add an env variable to point to a root disk, if available */
	298	addr = fdtdec_get_config_int(gd->fdt_blob, "rootdisk-offset", 0);
	299	if (addr)
	300	setenv_addr("rootaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));
66ded17d	301	#endif /* CONFIG_OF_CONTROL */
affb2156	302	}
66ded17d	303
affb2156	304	const char *bootdelay_process(void)
66ded17d	305	{
66ded17d SG	306	char *s;
	307	int bootdelay;
	308	#ifdef CONFIG_BOOTCOUNT_LIMIT
	309	unsigned long bootcount = 0;
	310	unsigned long bootlimit = 0;
	311	#endif /* CONFIG_BOOTCOUNT_LIMIT */
	312
	313	#ifdef CONFIG_BOOTCOUNT_LIMIT
	314	bootcount = bootcount_load();
	315	bootcount++;
	316	bootcount_store(bootcount);
	317	setenv_ulong("bootcount", bootcount);
	318	bootlimit = getenv_ulong("bootlimit", 10, 0);
	319	#endif /* CONFIG_BOOTCOUNT_LIMIT */
	320
	321	s = getenv("bootdelay");
	322	bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;
	323
	324	#ifdef CONFIG_OF_CONTROL
	325	bootdelay = fdtdec_get_config_int(gd->fdt_blob, "bootdelay",
	326	bootdelay);
	327	#endif
	328
	329	debug("### main_loop entered: bootdelay=%d\n\n", bootdelay);
	330
	331	#if defined(CONFIG_MENU_SHOW)
	332	bootdelay = menu_show(bootdelay);
	333	#endif
b26440f1	334	bootretry_init_cmd_timeout();
66ded17d SG	335
	336	#ifdef CONFIG_POST
	337	if (gd->flags & GD_FLG_POSTFAIL) {
	338	s = getenv("failbootcmd");
	339	} else
	340	#endif /* CONFIG_POST */
	341	#ifdef CONFIG_BOOTCOUNT_LIMIT
	342	if (bootlimit && (bootcount > bootlimit)) {
	343	printf("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n",
	344	(unsigned)bootlimit);
	345	s = getenv("altbootcmd");
	346	} else
	347	#endif /* CONFIG_BOOTCOUNT_LIMIT */
	348	s = getenv("bootcmd");
66ded17d SG	349
66ded17d SG	350	process_fdt_options(gd->fdt_blob);
affb2156	351	stored_bootdelay = bootdelay;
66ded17d	352
affb2156 SG	353	return s;
affb2156 SG	354	}
66ded17d	355
affb2156 SG	356	void autoboot_command(const char *s)
affb2156 SG	357	{
66ded17d SG	358	debug("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>");
66ded17d SG	359
affb2156	360	if (stored_bootdelay != -1 && s && !abortboot(stored_bootdelay)) {
66ded17d SG	361	#if defined(CONFIG_AUTOBOOT_KEYED) && !defined(CONFIG_AUTOBOOT_KEYED_CTRLC)
	362	int prev = disable_ctrlc(1); /* disable Control C checking */
	363	#endif
	364
	365	run_command_list(s, -1, 0);
	366
	367	#if defined(CONFIG_AUTOBOOT_KEYED) && !defined(CONFIG_AUTOBOOT_KEYED_CTRLC)
	368	disable_ctrlc(prev); /* restore Control C checking */
	369	#endif
	370	}
	371
	372	#ifdef CONFIG_MENUKEY
	373	if (menukey == CONFIG_MENUKEY) {
	374	s = getenv("menucmd");
	375	if (s)
	376	run_command_list(s, -1, 0);
	377	}
	378	#endif /* CONFIG_MENUKEY */
	379	}