[thirdparty/u-boot.git] / common / autoboot.c

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

#include <common.h>
#include <autoboot.h>
#include <bootretry.h>
#include <cli.h>
#include <console.h>
#include <fdtdec.h>
#include <hash.h>
#include <memalign.h>
#include <menu.h>
#include <post.h>
#include <u-boot/sha256.h>
#include <bootcount.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;
static int menukey;

#ifdef CONFIG_AUTOBOOT_ENCRYPTION
#define AUTOBOOT_STOP_STR_SHA256 CONFIG_AUTOBOOT_STOP_STR_SHA256
#else
#define AUTOBOOT_STOP_STR_SHA256 ""
#endif

#ifdef CONFIG_USE_AUTOBOOT_MENUKEY
#define AUTOBOOT_MENUKEY CONFIG_USE_AUTOBOOT_MENUKEY
#else
#define AUTOBOOT_MENUKEY 0
#endif

/*
 * 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;
}

/**
 * passwd_abort_sha256() - check for a hashed key sequence to abort booting
 *
 * This checks for the user entering a SHA256 hash within a given time.
 *
 * @etime: Timeout value ticks (stop when get_ticks() reachs this)
 * @return 0 if autoboot should continue, 1 if it should stop
 */
static int passwd_abort_sha256(uint64_t etime)
{
	const char *sha_env_str = env_get("bootstopkeysha256");
	u8 sha_env[SHA256_SUM_LEN];
	u8 *sha;
	char *presskey;
	const char *algo_name = "sha256";
	u_int presskey_len = 0;
	int abort = 0;
	int size = sizeof(sha);
	int ret;

	if (sha_env_str == NULL)
		sha_env_str = 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;
	}

	presskey = malloc_cache_aligned(MAX_DELAY_STOP_STR);
	sha = malloc_cache_aligned(SHA256_SUM_LEN);
	size = SHA256_SUM_LEN;
	/*
	 * 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) {
				free(presskey);
				free(sha);
				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);

	free(presskey);
	free(sha);
	return abort;
}

/**
 * passwd_abort_key() - check for a key sequence to aborted booting
 *
 * This checks for the user entering a string within a given time.
 *
 * @etime: Timeout value ticks (stop when get_ticks() reachs this)
 * @return 0 if autoboot should continue, 1 if it should stop
 */
static int passwd_abort_key(uint64_t etime)
{
	int abort = 0;
	struct {
		char *str;
		u_int len;
		int retry;
	}
	delaykey[] = {
		{ .str = env_get("bootdelaykey"),  .retry = 1 },
		{ .str = env_get("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;
}

/***************************************************************************
 * 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_key_sequence(int bootdelay)
{
	int abort;
	uint64_t etime = endtick(bootdelay);

#  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

	if (IS_ENABLED(CONFIG_AUTOBOOT_ENCRYPTION))
		abort = passwd_abort_sha256(etime);
	else
		abort = passwd_abort_key(etime);
	if (!abort)
		debug_bootkeys("key timeout\n");

	return abort;
}

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

	printf("Hit any key to stop autoboot: %2d ", bootdelay);

	/*
	 * Check if key already pressed
	 */
	if (tstc()) {	/* we got a key press	*/
		(void) getc();  /* consume input	*/
		puts("\b\b\b 0");
		abort = 1;	/* don't auto boot	*/
	}

	while ((bootdelay > 0) && (!abort)) {
		--bootdelay;
		/* delay 1000 ms */
		ts = get_timer(0);
		do {
			if (tstc()) {	/* we got a key press	*/
				int key;

				abort  = 1;	/* don't auto boot	*/
				bootdelay = 0;	/* no more delay	*/
				key = getc(); /* consume input	*/
				if (IS_ENABLED(CONFIG_USE_AUTOBOOT_MENUKEY))
					menukey = key;
				break;
			}
			udelay(10000);
		} while (!abort && get_timer(ts) < 1000);

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

	putc('\n');

	return abort;
}

static int abortboot(int bootdelay)
{
	int abort = 0;

	if (bootdelay >= 0) {
		if (IS_ENABLED(CONFIG_AUTOBOOT_KEYED))
			abort = abortboot_key_sequence(bootdelay);
		else
			abort = abortboot_single_key(bootdelay);
	}

	if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && abort)
		gd->flags &= ~GD_FLG_SILENT;

	return abort;
}

static void process_fdt_options(const void *blob)
{
#ifdef CONFIG_SYS_TEXT_BASE
	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)
		env_set_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)
		env_set_addr("rootaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));
#endif /* CONFIG_SYS_TEXT_BASE */
}

const char *bootdelay_process(void)
{
	char *s;
	int bootdelay;

	bootcount_inc();

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

	if (IS_ENABLED(CONFIG_OF_CONTROL))
		bootdelay = fdtdec_get_config_int(gd->fdt_blob, "bootdelay",
						  bootdelay);

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

	if (IS_ENABLED(CONFIG_AUTOBOOT_MENU_SHOW))
		bootdelay = menu_show(bootdelay);
	bootretry_init_cmd_timeout();

#ifdef CONFIG_POST
	if (gd->flags & GD_FLG_POSTFAIL) {
		s = env_get("failbootcmd");
	} else
#endif /* CONFIG_POST */
	if (bootcount_error())
		s = env_get("altbootcmd");
	else
		s = env_get("bootcmd");

	if (IS_ENABLED(CONFIG_OF_CONTROL))
		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)) {
		bool lock;
		int prev;

		lock = IS_ENABLED(CONFIG_AUTOBOOT_KEYED) &&
			!IS_ENABLED(CONFIG_AUTOBOOT_KEYED_CTRLC);
		if (lock)
			prev = disable_ctrlc(1); /* disable Ctrl-C checking */

		run_command_list(s, -1, 0);

		if (lock)
			disable_ctrlc(prev);	/* restore Ctrl-C checking */
	}

	if (IS_ENABLED(CONFIG_USE_AUTOBOOT_MENUKEY) &&
	    menukey == AUTOBOOT_MENUKEY) {
		s = env_get("menucmd");
		if (s)
			run_command_list(s, -1, 0);
	}
}
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
66ded17d SG	2	/*
	3	* (C) Copyright 2000
	4	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
66ded17d SG	5	*/
	6
	7	#include <common.h>
39e1230e	8	#include <autoboot.h>
0098e179	9	#include <bootretry.h>
66ded17d	10	#include <cli.h>
24b852a7	11	#include <console.h>
66ded17d	12	#include <fdtdec.h>
e8c78056	13	#include <hash.h>
ecaae801	14	#include <memalign.h>
66ded17d SG	15	#include <menu.h>
66ded17d SG	16	#include <post.h>
8f0b1e24	17	#include <u-boot/sha256.h>
bc8c440f	18	#include <bootcount.h>
66ded17d SG	19
	20	DECLARE_GLOBAL_DATA_PTR;
	21
	22	#define MAX_DELAY_STOP_STR 32
	23
	24	#ifndef DEBUG_BOOTKEYS
	25	#define DEBUG_BOOTKEYS 0
	26	#endif
	27	#define debug_bootkeys(fmt, args...) \
	28	debug_cond(DEBUG_BOOTKEYS, fmt, ##args)
	29
affb2156 SG	30	/* Stored value of bootdelay, used by autoboot_command() */
affb2156 SG	31	static int stored_bootdelay;
d915ad27	32	static int menukey;
affb2156	33
0c4bd318 SG	34	#ifdef CONFIG_AUTOBOOT_ENCRYPTION
	35	#define AUTOBOOT_STOP_STR_SHA256 CONFIG_AUTOBOOT_STOP_STR_SHA256
	36	#else
	37	#define AUTOBOOT_STOP_STR_SHA256 ""
	38	#endif
	39
d915ad27 SG	40	#ifdef CONFIG_USE_AUTOBOOT_MENUKEY
	41	#define AUTOBOOT_MENUKEY CONFIG_USE_AUTOBOOT_MENUKEY
	42	#else
	43	#define AUTOBOOT_MENUKEY 0
	44	#endif
	45
8f0b1e24 SR	46	/*
	47	* Use a "constant-length" time compare function for this
	48	* hash compare:
	49	*
	50	* https://crackstation.net/hashing-security.htm
66ded17d	51	*/
8f0b1e24 SR	52	static int slow_equals(u8 a, u8 b, int len)
	53	{
	54	int diff = 0;
	55	int i;
	56
	57	for (i = 0; i < len; i++)
	58	diff \|= a[i] ^ b[i];
	59
	60	return diff == 0;
	61	}
	62
88fa4beb SG	63	/**
	64	* passwd_abort_sha256() - check for a hashed key sequence to abort booting
	65	*
	66	* This checks for the user entering a SHA256 hash within a given time.
	67	*
	68	* @etime: Timeout value ticks (stop when get_ticks() reachs this)
	69	* @return 0 if autoboot should continue, 1 if it should stop
	70	*/
e8c78056	71	static int passwd_abort_sha256(uint64_t etime)
8f0b1e24	72	{
00caae6d	73	const char *sha_env_str = env_get("bootstopkeysha256");
8f0b1e24	74	u8 sha_env[SHA256_SUM_LEN];
ecaae801 HS	75	u8 *sha;
ecaae801 HS	76	char *presskey;
8f0b1e24 SR	77	const char *algo_name = "sha256";
	78	u_int presskey_len = 0;
	79	int abort = 0;
2d06fd83	80	int size = sizeof(sha);
8f0b1e24 SR	81	int ret;
	82
	83	if (sha_env_str == NULL)
0c4bd318	84	sha_env_str = AUTOBOOT_STOP_STR_SHA256;
8f0b1e24 SR	85
	86	/*
	87	* Generate the binary value from the environment hash value
	88	* so that we can compare this value with the computed hash
	89	* from the user input
	90	*/
	91	ret = hash_parse_string(algo_name, sha_env_str, sha_env);
	92	if (ret) {
	93	printf("Hash %s not supported!\n", algo_name);
	94	return 0;
	95	}
	96
ecaae801 HS	97	presskey = malloc_cache_aligned(MAX_DELAY_STOP_STR);
	98	sha = malloc_cache_aligned(SHA256_SUM_LEN);
	99	size = SHA256_SUM_LEN;
8f0b1e24 SR	100	/*
	101	* We don't know how long the stop-string is, so we need to
	102	* generate the sha256 hash upon each input character and
	103	* compare the value with the one saved in the environment
	104	*/
	105	do {
	106	if (tstc()) {
	107	/* Check for input string overflow */
ecaae801 HS	108	if (presskey_len >= MAX_DELAY_STOP_STR) {
	109	free(presskey);
	110	free(sha);
8f0b1e24	111	return 0;
ecaae801	112	}
8f0b1e24 SR	113
	114	presskey[presskey_len++] = getc();
	115
	116	/* Calculate sha256 upon each new char */
	117	hash_block(algo_name, (const void *)presskey,
	118	presskey_len, sha, &size);
	119
	120	/* And check if sha matches saved value in env */
	121	if (slow_equals(sha, sha_env, SHA256_SUM_LEN))
	122	abort = 1;
	123	}
	124	} while (!abort && get_ticks() <= etime);
	125
ecaae801 HS	126	free(presskey);
ecaae801 HS	127	free(sha);
8f0b1e24 SR	128	return abort;
8f0b1e24 SR	129	}
e8c78056	130
88fa4beb SG	131	/**
	132	* passwd_abort_key() - check for a key sequence to aborted booting
	133	*
	134	* This checks for the user entering a string within a given time.
	135	*
	136	* @etime: Timeout value ticks (stop when get_ticks() reachs this)
	137	* @return 0 if autoboot should continue, 1 if it should stop
	138	*/
e8c78056	139	static int passwd_abort_key(uint64_t etime)
66ded17d SG	140	{
66ded17d SG	141	int abort = 0;
66ded17d SG	142	struct {
	143	char *str;
	144	u_int len;
	145	int retry;
	146	}
	147	delaykey[] = {
00caae6d SG	148	{ .str = env_get("bootdelaykey"), .retry = 1 },
00caae6d SG	149	{ .str = env_get("bootstopkey"), .retry = 0 },
66ded17d SG	150	};
	151
	152	char presskey[MAX_DELAY_STOP_STR];
	153	u_int presskey_len = 0;
	154	u_int presskey_max = 0;
	155	u_int i;
	156
66ded17d SG	157	# ifdef CONFIG_AUTOBOOT_DELAY_STR
	158	if (delaykey[0].str == NULL)
	159	delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR;
	160	# endif
66ded17d	161	# ifdef CONFIG_AUTOBOOT_STOP_STR
2d908fa0 SR	162	if (delaykey[1].str == NULL)
2d908fa0 SR	163	delaykey[1].str = CONFIG_AUTOBOOT_STOP_STR;
66ded17d SG	164	# endif
	165
	166	for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i++) {
	167	delaykey[i].len = delaykey[i].str == NULL ?
	168	0 : strlen(delaykey[i].str);
	169	delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ?
	170	MAX_DELAY_STOP_STR : delaykey[i].len;
	171
	172	presskey_max = presskey_max > delaykey[i].len ?
	173	presskey_max : delaykey[i].len;
	174
	175	debug_bootkeys("%s key:<%s>\n",
	176	delaykey[i].retry ? "delay" : "stop",
	177	delaykey[i].str ? delaykey[i].str : "NULL");
	178	}
	179
	180	/* In order to keep up with incoming data, check timeout only
	181	* when catch up.
	182	*/
	183	do {
	184	if (tstc()) {
	185	if (presskey_len < presskey_max) {
	186	presskey[presskey_len++] = getc();
	187	} else {
	188	for (i = 0; i < presskey_max - 1; i++)
	189	presskey[i] = presskey[i + 1];
	190
	191	presskey[i] = getc();
	192	}
	193	}
	194
	195	for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i++) {
	196	if (delaykey[i].len > 0 &&
	197	presskey_len >= delaykey[i].len &&
	198	memcmp(presskey + presskey_len -
	199	delaykey[i].len, delaykey[i].str,
	200	delaykey[i].len) == 0) {
	201	debug_bootkeys("got %skey\n",
	202	delaykey[i].retry ? "delay" :
	203	"stop");
	204
66ded17d SG	205	/* don't retry auto boot */
	206	if (!delaykey[i].retry)
	207	bootretry_dont_retry();
66ded17d SG	208	abort = 1;
	209	}
	210	}
	211	} while (!abort && get_ticks() <= etime);
	212
8f0b1e24 SR	213	return abort;
8f0b1e24 SR	214	}
8f0b1e24 SR	215
	216	/***************************************************************************
	217	* Watch for 'delay' seconds for autoboot stop or autoboot delay string.
	218	* returns: 0 - no key string, allow autoboot 1 - got key string, abort
	219	*/
e79e4b25	220	static int abortboot_key_sequence(int bootdelay)
8f0b1e24 SR	221	{
	222	int abort;
	223	uint64_t etime = endtick(bootdelay);
	224
8f0b1e24 SR	225	# ifdef CONFIG_AUTOBOOT_PROMPT
	226	/*
	227	* CONFIG_AUTOBOOT_PROMPT includes the %d for all boards.
	228	* To print the bootdelay value upon bootup.
	229	*/
	230	printf(CONFIG_AUTOBOOT_PROMPT, bootdelay);
	231	# endif
	232
e8c78056 SG	233	if (IS_ENABLED(CONFIG_AUTOBOOT_ENCRYPTION))
	234	abort = passwd_abort_sha256(etime);
	235	else
	236	abort = passwd_abort_key(etime);
66ded17d SG	237	if (!abort)
	238	debug_bootkeys("key timeout\n");
	239
66ded17d SG	240	return abort;
	241	}
	242
e79e4b25	243	static int abortboot_single_key(int bootdelay)
66ded17d SG	244	{
	245	int abort = 0;
	246	unsigned long ts;
	247
46327392	248	printf("Hit any key to stop autoboot: %2d ", bootdelay);
66ded17d	249
66ded17d SG	250	/*
66ded17d SG	251	* Check if key already pressed
66ded17d	252	*/
46327392 MY	253	if (tstc()) { /* we got a key press */
	254	(void) getc(); /* consume input */
	255	puts("\b\b\b 0");
	256	abort = 1; /* don't auto boot */
66ded17d	257	}
66ded17d SG	258
	259	while ((bootdelay > 0) && (!abort)) {
	260	--bootdelay;
	261	/* delay 1000 ms */
	262	ts = get_timer(0);
	263	do {
	264	if (tstc()) { /* we got a key press */
d915ad27 SG	265	int key;
d915ad27 SG	266
66ded17d SG	267	abort = 1; /* don't auto boot */
66ded17d SG	268	bootdelay = 0; /* no more delay */
d915ad27 SG	269	key = getc(); /* consume input */
	270	if (IS_ENABLED(CONFIG_USE_AUTOBOOT_MENUKEY))
	271	menukey = key;
66ded17d SG	272	break;
	273	}
	274	udelay(10000);
	275	} while (!abort && get_timer(ts) < 1000);
	276
	277	printf("\b\b\b%2d ", bootdelay);
	278	}
	279
	280	putc('\n');
	281
66ded17d SG	282	return abort;
66ded17d SG	283	}
66ded17d SG	284
	285	static int abortboot(int bootdelay)
	286	{
46327392	287	int abort = 0;
09b9d9e5	288
e79e4b25 SG	289	if (bootdelay >= 0) {
	290	if (IS_ENABLED(CONFIG_AUTOBOOT_KEYED))
	291	abort = abortboot_key_sequence(bootdelay);
	292	else
	293	abort = abortboot_single_key(bootdelay);
	294	}
09b9d9e5	295
42b4d14e	296	if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && abort)
09b9d9e5	297	gd->flags &= ~GD_FLG_SILENT;
09b9d9e5 MY	298
09b9d9e5 MY	299	return abort;
66ded17d SG	300	}
66ded17d SG	301
66ded17d SG	302	static void process_fdt_options(const void *blob)
66ded17d SG	303	{
5fa3fd25	304	#ifdef CONFIG_SYS_TEXT_BASE
66ded17d SG	305	ulong addr;
	306
	307	/* Add an env variable to point to a kernel payload, if available */
	308	addr = fdtdec_get_config_int(gd->fdt_blob, "kernel-offset", 0);
	309	if (addr)
018f5303	310	env_set_addr("kernaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));
66ded17d SG	311
	312	/* Add an env variable to point to a root disk, if available */
	313	addr = fdtdec_get_config_int(gd->fdt_blob, "rootdisk-offset", 0);
	314	if (addr)
018f5303	315	env_set_addr("rootaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));
5fa3fd25	316	#endif /* CONFIG_SYS_TEXT_BASE */
affb2156	317	}
66ded17d	318
affb2156	319	const char *bootdelay_process(void)
66ded17d	320	{
66ded17d SG	321	char *s;
66ded17d SG	322	int bootdelay;
bc8c440f LM	323
bc8c440f LM	324	bootcount_inc();
66ded17d	325
00caae6d	326	s = env_get("bootdelay");
66ded17d SG	327	bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;
66ded17d SG	328
5fa3fd25 SG	329	if (IS_ENABLED(CONFIG_OF_CONTROL))
	330	bootdelay = fdtdec_get_config_int(gd->fdt_blob, "bootdelay",
	331	bootdelay);
66ded17d SG	332
	333	debug("### main_loop entered: bootdelay=%d\n\n", bootdelay);
	334
5fa3fd25 SG	335	if (IS_ENABLED(CONFIG_AUTOBOOT_MENU_SHOW))
5fa3fd25 SG	336	bootdelay = menu_show(bootdelay);
b26440f1	337	bootretry_init_cmd_timeout();
66ded17d SG	338
	339	#ifdef CONFIG_POST
	340	if (gd->flags & GD_FLG_POSTFAIL) {
00caae6d	341	s = env_get("failbootcmd");
66ded17d SG	342	} else
66ded17d SG	343	#endif /* CONFIG_POST */
bc8c440f	344	if (bootcount_error())
00caae6d	345	s = env_get("altbootcmd");
bc8c440f	346	else
00caae6d	347	s = env_get("bootcmd");
66ded17d	348
5fa3fd25 SG	349	if (IS_ENABLED(CONFIG_OF_CONTROL))
5fa3fd25 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)) {
5ec35ff3 SG	361	bool lock;
	362	int prev;
	363
	364	lock = IS_ENABLED(CONFIG_AUTOBOOT_KEYED) &&
	365	!IS_ENABLED(CONFIG_AUTOBOOT_KEYED_CTRLC);
	366	if (lock)
	367	prev = disable_ctrlc(1); /* disable Ctrl-C checking */
66ded17d SG	368
	369	run_command_list(s, -1, 0);
	370
5ec35ff3 SG	371	if (lock)
5ec35ff3 SG	372	disable_ctrlc(prev); /* restore Ctrl-C checking */
66ded17d SG	373	}
66ded17d SG	374
d915ad27 SG	375	if (IS_ENABLED(CONFIG_USE_AUTOBOOT_MENUKEY) &&
d915ad27 SG	376	menukey == AUTOBOOT_MENUKEY) {
00caae6d	377	s = env_get("menucmd");
66ded17d SG	378	if (s)
	379	run_command_list(s, -1, 0);
	380	}
66ded17d	381	}