Exemplo n.º 1
0
void set_default_env(const char *s, int flags)
{
	if (sizeof(default_environment) > ENV_SIZE) {
		puts("*** Error - default environment is too large\n\n");
		return;
	}

	if (s) {
		if ((flags & H_INTERACTIVE) == 0) {
			printf("*** Warning - %s, "
				"using default environment\n\n", s);
		} else {
			puts(s);
		}
	} else {
		debug("Using default environment\n");
	}

	if (himport_r(&env_htab, (char *)default_environment,
			sizeof(default_environment), '\0', flags, 0,
			0, NULL) == 0)
		pr_err("## Error: Environment import failed: errno = %d\n",
		       errno);

	gd->flags |= GD_FLG_ENV_READY;
	gd->flags |= GD_FLG_ENV_DEFAULT;
}
Exemplo n.º 2
0
void set_default_env(const char *s)
{
	if (sizeof(default_environment) > ENV_SIZE) {
		puts("*** Error - default environment is too large\n\n");
		return;
	}

	if (s) {
		if (*s == '!') {
			printf("*** Warning - %s, "
				"using default environment\n\n",
				s + 1);
		} else {
			puts(s);
		}
	} else {
		puts("Using default environment\n\n");
	}

	if (himport_r(&env_htab, (char *)default_environment,
			sizeof(default_environment), '\0', 0) == 0)
		error("Environment import failed: errno = %d\n", errno);

	gd->flags |= GD_FLG_ENV_READY;
}
Exemplo n.º 3
0
/*
 * Check if CRC is valid and (if yes) import the environment.
 * Note that "buf" may or may not be aligned.
 */
int env_import(const char *buf, int check)
{
	env_t *ep = (env_t *)buf;

	if (check) {
		uint32_t crc;

		memcpy(&crc, &ep->crc, sizeof(crc));

		if (crc32(0, ep->data, ENV_SIZE) != crc) {
			set_default_env("bad CRC", 0);
			return -EIO;
		}
	}

	if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0, 0,
			0, NULL)) {
		gd->flags |= GD_FLG_ENV_READY;
		return 0;
	}

	pr_err("Cannot import environment: errno = %d\n", errno);

	set_default_env("import failed", 0);

	return -EIO;
}
Exemplo n.º 4
0
/*
 * Check if CRC is valid and (if yes) import the environment.
 * Note that "buf" may or may not be aligned.
 */
int env_import(const char *buf, int check)
{
	env_t *ep = (env_t *)buf;

	if (check) {
		uint32_t crc;

		memcpy(&crc, &ep->crc, sizeof(crc));

		if (crc32(0, ep->data, ENV_SIZE) != crc) {
			set_default_env("!bad CRC");
			return 0;
        }else if(ep->data[0] == 0xff){
			printf("check env data = 0xff, set default env\n");
			set_default_env("!check env data is 0xff");
			saveenv();
			return 0;
 		}
	}

	if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0)) {
		gd->flags |= GD_FLG_ENV_READY;
		return 1;
	}

	error("Cannot import environment: errno = %d\n", errno);

	set_default_env("!import failed");

	return 0;
}
Exemplo n.º 5
0
/*
 * Check if CRC is valid and (if yes) import the environment.
 * Note that "buf" may or may not be aligned.
 */
int env_import(const char *buf, int check)
{
	env_t *ep = (env_t *)buf;

	tick_printf(__FILE__, __LINE__);
	if (check) {
		uint32_t crc;

		memcpy(&crc, &ep->crc, sizeof(crc));

		if (crc32(0, ep->data, ENV_SIZE) != crc) {
			set_default_env("!bad CRC");
			return 0;
		}
	}
	tick_printf(__FILE__, __LINE__);
	if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0)) {
		gd->flags |= GD_FLG_ENV_READY;

		tick_printf(__FILE__, __LINE__);
		return 1;
	}

	error("Cannot import environment: errno = %d\n", errno);

	set_default_env("!import failed");

	return 0;
}
Exemplo n.º 6
0
static void flash_use_efex_env(void)
{
	if (himport_r(&env_htab, (char *)sunxi_sprite_environment,
		    sizeof(sunxi_sprite_environment), '\0', 0) == 0) {
		error("Environment import failed: errno = %d\n", errno);
	}
	gd->flags |= GD_FLG_ENV_READY;

	return ;
}
Exemplo n.º 7
0
/* [re]set individual variables to their value in the default environment */
int set_default_vars(int nvars, char * const vars[])
{
	/*
	 * Special use-case: import from default environment
	 * (and use \0 as a separator)
	 */
	return himport_r(&env_htab, (const char *)default_environment,
				sizeof(default_environment), '\0', H_NOCLEAR,
				nvars, vars, 1 /* do_apply */);
}
Exemplo n.º 8
0
/* [re]set individual variables to their value in the default environment */
int set_default_vars(int nvars, char * const vars[], int flags)
{
	/*
	 * Special use-case: import from default environment
	 * (and use \0 as a separator)
	 */
	flags |= H_NOCLEAR;
	return himport_r(&env_htab, (const char *)default_environment,
				sizeof(default_environment), '\0',
				flags, 0, nvars, vars);
}
Exemplo n.º 9
0
void set_default_env(const char *s)
{
	/*
	 * By default, do not apply changes as they will eventually
	 * be applied by someone else
	 */
	int do_apply = 0;
	if (sizeof(default_environment) > ENV_SIZE) {
		puts("*** Error - default environment is too large\n\n");
		return;
	}

	if (s) {
		if (*s == '!') {
			printf("*** Warning - %s, "
				"using default environment\n\n",
				s + 1);
		} else {
			/*
			 * This set_to_default was explicitly asked for
			 * by the user, as opposed to being a recovery
			 * mechanism.  Therefore we check every single
			 * variable and apply changes to the system
			 * right away (e.g. baudrate, console).
			 */
			do_apply = 1;
			puts(s);
		}
	} else {
		puts("Using default environment\n\n");
	}

	if (himport_r(&env_htab, (char *)default_environment,
			sizeof(default_environment), '\0', 0,
			0, NULL, do_apply) == 0)
		error("Environment import failed: errno = %d\n", errno);

	gd->flags |= GD_FLG_ENV_READY;
}
Exemplo n.º 10
0
//base on env_import
static int env_append(const char *buf, int check)
{
	env_t *ep = (env_t *)buf;

	if (check) {
		uint32_t crc;

        	memcpy(&crc, &ep->crc, sizeof(crc));

		if (crc32(0, ep->data, ENV_SIZE) != crc) {
			return 0;
		}
	}

	if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', H_NOCLEAR,
			0, NULL)) {
		gd->flags |= GD_FLG_ENV_READY;
		return 1;
	}

	printf("Cannot import environment: errno = %d\n", errno);

	return 0;
}
Exemplo n.º 11
0
/*
 * Check if CRC is valid and (if yes) import the environment.
 * Note that "buf" may or may not be aligned.
 */
int env_import(const char *buf, int check)
{
    env_t *ep = (env_t *)buf;
    int ret;

    if (check) {
        uint32_t crc;

        memcpy(&crc, &ep->crc, sizeof(crc));

        if (crc32(0, ep->data, ENV_SIZE) != crc) {
            set_default_env("!bad CRC");
            return 0;
        }
    }

    /* Decrypt the env if desired. */
    ret = env_aes_cbc_crypt(ep, 0);
    if (ret) {
        error("Failed to decrypt env!\n");
        set_default_env("!import failed");
        return ret;
    }

    if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0, 0,
                  0, NULL)) {
        gd->flags |= GD_FLG_ENV_READY;
        return 1;
    }

    error("Cannot import environment: errno = %d\n", errno);

    set_default_env("!import failed");

    return 0;
}
Exemplo n.º 12
0
/*
 * env import [-d] [-t | -b | -c] addr [size]
 *	-d:	delete existing environment before importing;
 *		otherwise overwrite / append to existion definitions
 *	-t:	assume text format; either "size" must be given or the
 *		text data must be '\0' terminated
 *	-b:	assume binary format ('\0' separated, "\0\0" terminated)
 *	-c:	assume checksum protected environment format
 *	addr:	memory address to read from
 *	size:	length of input data; if missing, proper '\0'
 *		termination is mandatory
 */
static int do_env_import(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	char	*cmd, *addr;
	char	sep = '\n';
	int	chk = 0;
	int	fmt = 0;
	int	del = 0;
	size_t	size;

	cmd = *argv;

	while (--argc > 0 && **++argv == '-') {
		char *arg = *argv;
		while (*++arg) {
			switch (*arg) {
			case 'b':		/* raw binary format */
				if (fmt++)
					goto sep_err;
				sep = '\0';
				break;
			case 'c':		/* external checksum format */
				if (fmt++)
					goto sep_err;
				sep = '\0';
				chk = 1;
				break;
			case 't':		/* text format */
				if (fmt++)
					goto sep_err;
				sep = '\n';
				break;
			case 'd':
				del = 1;
				break;
			default:
				return cmd_usage(cmdtp);
			}
		}
	}

	if (argc < 1)
		return cmd_usage(cmdtp);

	if (!fmt)
		printf("## Warning: defaulting to text format\n");

	addr = (char *)simple_strtoul(argv[0], NULL, 16);

	if (argc == 2) {
		size = simple_strtoul(argv[1], NULL, 16);
	} else {
		char *s = addr;

		size = 0;

		while (size < MAX_ENV_SIZE) {
			if ((*s == sep) && (*(s+1) == '\0'))
				break;
			++s;
			++size;
		}
		if (size == MAX_ENV_SIZE) {
			printf("## Warning: Input data exceeds %d bytes"
				" - truncated\n", MAX_ENV_SIZE);
		}
		++size;
		printf("## Info: input data size = %zd = 0x%zX\n", size, size);
	}

	if (chk) {
		uint32_t crc;
		env_t *ep = (env_t *)addr;

		size -= offsetof(env_t, data);
		memcpy(&crc, &ep->crc, sizeof(crc));

		if (crc32(0, ep->data, size) != crc) {
			puts("## Error: bad CRC, import failed\n");
			return 1;
		}
		addr = (char *)ep->data;
	}

	if (himport_r(&env_htab, addr, size, sep, del ? 0 : H_NOCLEAR) == 0) {
		error("Environment import failed: errno = %d\n", errno);
		return 1;
	}
	gd->flags |= GD_FLG_ENV_READY;

	return 0;

sep_err:
	printf("## %s: only one of \"-b\", \"-c\" or \"-t\" allowed\n",
		cmd);
	return 1;
}