ap/app/fs_check/mtd.c

#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/vfs.h>
#include <assert.h>


#include <mtd/mtd-abi.h>
#include <errno.h>

#include <sys/ioctl.h>
#include "fs_check.h"
#include "cfg_api.h"
#include "pub_debug_info.h"

/*******************************************************************************
 *                             Macro definitions                               *
 ******************************************************************************/
#define MOUNTS_INFO_FILE				"/proc/mounts"

#define NV_FS_FAC_MAIN_PATH         	"/mnt/imagefs/nvrwall.bin"
#define NV_FS_RW_HASH_FAC_PATH     		"/mnt/imagefs/nvrwall.hash"
#define NV_FS_RW_TOP_PATH       		"/etc_rw/psnv"
#define NV_FS_RW_HASH_WORK_PATH    		"/etc_rw/psnv/nvrwall.hash"
#define NV_FS_RW_MAIN_PATH         		"/etc_rw/psnv/rw_work"
#define NV_FS_RW_BACKUP_PATH       		"/etc_rw/psnv/rw_backup"
#define NV_FS_FAC_SYMBOL_PATH    		"/etc_rw/psnv/fac_flag"
#define NV_FS_RW_MAIN_SYMBOL_PATH   	"/etc_rw/psnv/work_flag"
#define NV_FS_RW_BACKUP_SYMBOL_PATH 	"/etc_rw/psnv/backup_flag"

#define NV_FS_RW_AP_NV_MAIN_PATH        	"/etc_rw/nv/main/cfg"
#define NV_FS_RW_AP_NV_BACKUP_PATH        	"/etc_rw/nv/backup/cfg"

#define MOUNTS_LINE_LEN				(256)
#define MOUNTS_LINE_ELEMENT_LEN		(64)
#define MAX_PATH 					(256)
#define BUF_MAX_LEN   				(32)
#define UBI_DEV_MAX_NUM   			(10)
#define SYSTEM_EXEC_FAIL        	(0)
#define SYSTEM_EXEC_SUCC        	(1)
#define USERDATA_RESET_FREE_BLOCK_LEVEL    (2)
#define USERDATA_FREE_DATA_SIZE            (128)

typedef enum {
	DEVICE_MTD = 0,
	DEVICE_ZFTL = 1,
	DEVICE_MTD_BLOCK,
} device_type_t;

char *g_path_prefix = "";

static int check_mount_result(const char *parti_mp)
{
	char *line_p, *temp_p;
	char line[MOUNTS_LINE_LEN] = {0};
	char line_element[MOUNTS_LINE_ELEMENT_LEN] = {0};
	int found;
	FILE *fp = NULL;
	int mp_str_len;
	if (parti_mp == NULL)
		return -1;
	if ((fp = fopen(MOUNTS_INFO_FILE, "r")) == NULL) {
		printf("fs_check fopen %s failed, error:%s\n", MOUNTS_INFO_FILE, strerror(errno));
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check fopen %s failed, error:%s\n", MOUNTS_INFO_FILE, strerror(errno));
		goto error;
	}

	found = 0;
	while (1) {
		memset(line, 0, sizeof(line));
		if (NULL == fgets(line, sizeof(line), fp)) {
			break;
		}
		//upi_log("line: %s", line);
		line_p = line;
		while (*line_p != '\0' && *line_p != ' ') { // first element
			line_p++;
		}
		line_p++;
		memset(line_element, 0, sizeof(line_element));
		temp_p = line_element;
		while (*line_p != '\0' && *line_p != ' ') { // second element, this is what we need
			*temp_p = *line_p;
			temp_p++;

			line_p++;
		}
		//upi_log("line_element: %s", line_element);
		mp_str_len = strlen(parti_mp);
		if (mp_str_len <= strlen(line_element)) {
			if (strncmp(line_element + strlen(line_element) - mp_str_len, parti_mp, mp_str_len) == 0) {
				found = 1;
				break;
			}
		}
	}
	if (found == 0) {
		printf("fs_check did not find any mount info about %s\n", parti_mp);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check did not find any mount info about %s\n", parti_mp);
		goto error;
	}
	if (NULL != fp)
		fclose(fp);
	return 0;
error:
	if (fp != NULL)
		fclose(fp);
	return -1;
}

int mtd_find(const char *i_parti_name, char *o_mtd_path, device_type_t device_type, unsigned int o_mtd_path_len)
{
	FILE *fd_mtd = 0;
	char buf[128];
	char *line_str;

	if (!o_mtd_path_len)
		return -1;

	fd_mtd = fopen("/proc/mtd", "r+");
	if (NULL == fd_mtd) {
		printf("fs_check open file error:%s", strerror(errno));
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check open file error:%s", strerror(errno));
		goto error0;
	}
	//printf("fs_check partition name:%s\n", i_parti_name);

	while (1) {
		int matches = 0;
		char mtdname[64] = {0};
		int  mtdnum = 0;
		unsigned int  mtdsize, mtderasesize;
        memset(buf, 0x00, sizeof(buf));
		line_str = fgets(buf, sizeof(buf), fd_mtd);

		if (NULL == line_str) {
			printf("fs_check get info from mtd error:%s\n", strerror(errno));
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check get info from mtd error:%s\n", strerror(errno));
			goto error1;
		}
		//mtd5: 00100000 00020000 "fotaflag"
		matches = sscanf(buf, "mtd%d: %x %x \"%63[^\"]",
		                 &mtdnum, &mtdsize, &mtderasesize, mtdname);
		mtdname[63] = '\0';
		
		if ((matches == 4) && (strcmp(mtdname, i_parti_name) == 0)) {
			memset(o_mtd_path, 0x00, o_mtd_path_len);
			if (device_type == DEVICE_MTD_BLOCK) {
				snprintf(o_mtd_path, o_mtd_path_len, "/dev/mtdblock%d", mtdnum);
			} else if (device_type == DEVICE_MTD) {
				snprintf(o_mtd_path, o_mtd_path_len, "/dev/mtd%d", mtdnum);
			} else if (device_type == DEVICE_ZFTL) {
				snprintf(o_mtd_path, o_mtd_path_len, "/dev/zftl%d", mtdnum);
			} else {
				printf("fs_check unknown device type %d\n", device_type);
				sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check unknown device type %d\n", device_type);
				goto error1;
			}
			//printf("fs_check o_mtd_path=[%s]\n", o_mtd_path);
			break;
		}

	}
	fclose(fd_mtd);
	return 0;

error1:
	fclose(fd_mtd);
error0:
	return -1;
}

int system_exec_status(int status)
{
	if (-1 == status)
	    return SYSTEM_EXEC_FAIL;

	if (!WIFEXITED(status))
	    return SYSTEM_EXEC_FAIL;

	if (WEXITSTATUS(status))
	    return SYSTEM_EXEC_FAIL;
	
	return SYSTEM_EXEC_SUCC;
}

int get_ubifs_device_num(int recv_mtdnum)
{
	int     vol_num 	= -1;
	int 	fd_ubi		= -1;
	int 	ret			= -1;
	int 	mytmp		= 0;
	int     add_len     = 10; 

    struct  stat st		= {0};
	
	char read_buf[BUF_MAX_LEN] = {0};
	char ubidev_path[MAX_PATH] = {0};

	for (; mytmp < UBI_DEV_MAX_NUM; mytmp++)
	{
		snprintf(ubidev_path, sizeof(ubidev_path), "/sys/devices/virtual/ubi/ubi%d", mytmp);	
		ret = stat(ubidev_path, &st);
		if (ret < 0) {
			printf("fs_check get stat info from error:%s\n", strerror(errno));
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check get stat info from error:%s\n", strerror(errno));		
			break;
		}
		if (S_ISDIR(st.st_mode)) {
			strncat(ubidev_path, "/mtd_num", add_len);
			fd_ubi = open(ubidev_path, O_RDONLY);
			if (fd_ubi < 0) {
				printf("fs_check open file error:%s", strerror(errno));
				sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check open file error:%s", strerror(errno));
				break;
			}
			memset(read_buf, 0, sizeof(read_buf));
			ret = read(fd_ubi, read_buf, sizeof(read_buf));
			if (ret < 0) {
				printf("fs_check get info from ubi error:%s\n", strerror(errno));
				sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check get info from ubi error:%s\n", strerror(errno));
				close(fd_ubi);
				break;
			}
			if (atoi(read_buf) == recv_mtdnum) {
				vol_num = mytmp;
				close(fd_ubi);
				break;
			}
			close(fd_ubi);
		}
	}

	return vol_num;
}


/**************************************************************************
* º¯ÊýÃû³Æ£º read_file
* ¹¦ÄÜÃèÊö£º ¶ÁÈ¡Îļþ
* ²ÎÊý˵Ã÷£º (IN)
*            p_file:  Îļþ
*            len:    ³¤¶È
*            (OUT)
* ·µ »Ø Öµ Îļþ¶ÁÈ¡³É¹¦Çé¿ö£¨1¡¢·µ»Ø·ÇNULL£»2¡¢¿ÕÎļþ·µ»ØNULLÇÒlenµÈÓÚ0£©£¬
          Îļþ¶Áȡʧ°ÜÇé¿ö£º·µ»ØNULL£¬ÇÒlen´óÓÚ0
* ÆäËü˵Ã÷£º·µ»ØÖµµ÷ÓÃÕßÊÍ·Å
**************************************************************************/
static char *read_file(const char *p_file, unsigned int *len)
{
	FILE * fd  		= 0;
    struct stat buf = {0};
	char * p_buf  = NULL;
	size_t read_size;

	*len = 0xffff; /* init file length > 0 for error */
	if(p_file == NULL)
		return NULL;
	
    if(stat(p_file, &buf) < 0)
    {
		printf("read_file stat %s failed\n", p_file);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "read_file stat %s failed\n", p_file);
        return NULL;
    }
	if (buf.st_size == 0)
	{
		*len = 0; /* empty file */
		return NULL;
	}
	*len = buf.st_size;

	fd = fopen(p_file, "rb");
	if(!fd) 
	{
		printf("read_file open %s fail\n", p_file);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "read_file open %s fail\n", p_file);
		return NULL;
	}
	
	p_buf = (char *)malloc(buf.st_size);
	if (p_buf == NULL)
	{
		printf("read_file malloc fail\n");
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "read_file malloc fail\n");
		fclose(fd);
		return NULL;
	}

	read_size = fread(p_buf,1, buf.st_size,fd);
	if (read_size != buf.st_size)
	{
		printf("read_file fread %s fail\n", p_file);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "read_file fread %s fail\n", p_file);
		fclose(fd);
		free(p_buf);
		return NULL;
	}
	if (ferror(fd))
	{
		clearerr(fd);
		printf("read_file ferror %s fail\n", p_file);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "read_file ferror %s fail\n", p_file);
		fclose(fd);
		free(p_buf);
		return NULL;
	}
	fclose(fd);

    return p_buf;
}

/**************************************************************************
* º¯ÊýÃû³Æ£º compare_file
* ¹¦ÄÜÃèÊö£º ±È½ÏÄ¿±êÎļþºÍÔ´ÎļþÊÇ·ñÒ»Ñù
* ²ÎÊý˵Ã÷£º (IN)
*            p_dst_file:  Ä¿±êÎļþ
*            p_src_file:  Ô´Îļþ
*            (OUT)
* ·µ »Ø Öµ£ºÎļþÒ»Ñù·µ»Ø0, ·ñÔò·µ»Ø-1
* ÆäËü˵Ã÷£º
**************************************************************************/
static int compare_file(const char *p_dst_file, const char *p_src_file)
{
	char *p_dst;
	char *p_src;
	unsigned int dst_len;
	unsigned int src_len;
	int ret = 0;

	if(p_dst_file == NULL || p_src_file == NULL)
		return -1;

	p_dst = read_file(p_dst_file, &dst_len);
	p_src = read_file(p_src_file, &src_len);
	if (p_dst == NULL && p_src == NULL)
	{
		assert(dst_len == 0);
		assert(src_len == 0);
		return 0; //both empty file
	}
	else if (p_dst == NULL || p_src == NULL)
	{
		printf("compare_file size dstbuf = %d, srcbuf = %d\n", dst_len, src_len);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "compare_file size dstbuf = %d, srcbuf = %d\n", dst_len, src_len);
		ret = -1;
		goto out;
	}
	else
	{
		if(dst_len != src_len)
		{
			printf("compare_file size dstbuf = %d, srcbuf = %d\n", dst_len, src_len);
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "compare_file size dstbuf = %d, srcbuf = %d\n", dst_len, src_len);
			ret = -1;
			goto out;
		}

		if(memcmp(p_src, p_dst, src_len) != 0)
		{
			printf("compare_file memcmp not same\n");
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "compare_file memcmp not same\n");
			ret = -1;
			goto out;
		}
		ret = 0;
	}

out:
	if (p_src)
	{
		free(p_src);
	}
	if (p_dst)
	{
		free(p_dst);
	}
	
	return ret;
}

/**************************************************************************
* º¯ÊýÃû³Æ£º check_files_access
* ¹¦ÄÜÃèÊö£º ¼ì²éuserdataÎļþϵͳϵÄÎļþÊÇ·ñ´æÔÚÇÒÓжÁдȨÏÞ
* ²ÎÊý˵Ã÷£º ÎÞ
* ·µ »Ø Öµ£º¼ì²éÕý³£·µ»Ø0, ·ñÔò·µ»Ø-1£¬½øÐÐuserdata·ÖÇøµÄ²Á³ý
* ÆäËü˵Ã÷£º
**************************************************************************/
static int check_files_access()
{
	if(access(NV_FS_RW_MAIN_PATH,W_OK | R_OK) < 0)
	{
		printf("fs_check file: %s  permission loss \n",NV_FS_RW_MAIN_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  permission loss \n",NV_FS_RW_MAIN_PATH);
		return -1;//²é¿´rw_workÎļþÊÇ·ñ¿É¶Áд
	}
	if(access(NV_FS_RW_BACKUP_PATH, W_OK | R_OK) < 0)
	{
		printf("fs_check file: %s  permission loss \n",NV_FS_RW_BACKUP_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  permission loss \n",NV_FS_RW_BACKUP_PATH);
		return -1;//²é¿´rw_backupÎļþÊÇ·ñ¿É¶Áд
	}
	if(access(NV_FS_FAC_SYMBOL_PATH, W_OK | R_OK) < 0)
	{
		printf("fs_check file: %s  permission loss \n",NV_FS_FAC_SYMBOL_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  permission loss \n",NV_FS_FAC_SYMBOL_PATH);
		return -1;//²é¿´fac_flagÎļþÊÇ·ñ¿É¶Áд
	}
	if(access(NV_FS_RW_MAIN_SYMBOL_PATH, W_OK | R_OK) < 0)
	{
		printf("fs_check file: %s  permission loss \n",NV_FS_RW_MAIN_SYMBOL_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  permission loss \n",NV_FS_RW_MAIN_SYMBOL_PATH);
		return -1;//²é¿´work_flagÎļþÊÇ·ñ¿É¶Áд
	}
	if(access(NV_FS_RW_BACKUP_SYMBOL_PATH, W_OK | R_OK) < 0)
	{
		printf("fs_check file: %s  permission loss \n",NV_FS_RW_BACKUP_SYMBOL_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  permission loss \n",NV_FS_RW_BACKUP_SYMBOL_PATH);
		return -1;//²é¿´backup_flagÎļþÊÇ·ñ¿É¶Áд
	}
#ifndef USE_CAP_SUPPORT
	if(access(NV_FS_RW_AP_NV_MAIN_PATH, W_OK | R_OK) < 0)
	{
		printf("fs_check file: %s  permission loss \n",NV_FS_RW_AP_NV_MAIN_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  permission loss \n",NV_FS_RW_AP_NV_MAIN_PATH);
		return -1;//²é¿´apϹ¤×÷nvÎļþÊÇ·ñ¿É¶Áд
	}
	if(access(NV_FS_RW_AP_NV_BACKUP_PATH, W_OK | R_OK) < 0)
	{
		printf("fs_check file: %s  permission loss \n",NV_FS_RW_AP_NV_BACKUP_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  permission loss \n",NV_FS_RW_AP_NV_BACKUP_PATH);
		return -1;//²é¿´apϱ¸·ÝnvÎļþÊÇ·ñ¿É¶Áд
	}
#endif
    return 0;
}

/* read success return 0, file not exist return 0, other return -1*/
static int file_read_test(const char *filename)
{
	char *buf;
	size_t read_size;
	struct stat file_stat;
	int result = stat(filename, &file_stat);

	if (result == -1 && errno == ENOENT)
	{
		return 0; /* file not exist */
	}
	else
	{
		if (result != 0)
		{
			return -1;
		}
	}

	buf = read_file(filename, &read_size);
	if (buf == NULL)
	{
		if (read_size == 0)
		{
			return 0; /* empty file */
		}
		else
		{
			return -1; /* file read error */
		}
	}
	else
	{
		free(buf);
		return 0;
	}
}

/**************************************************************************
* º¯ÊýÃû³Æ£º check_files_read
* ¹¦ÄÜÃèÊö£º ¼ì²éuserdataÎļþϵͳϵÄÎļþreadÊÇ·ñÕý³£
* ²ÎÊý˵Ã÷£º ÎÞ
* ·µ »Ø Öµ£º¼ì²éÕý³£·µ»Ø0, ·ñÔò·µ»Ø-1£¬½øÐÐuserdata·ÖÇøµÄ²Á³ý
* ÆäËü˵Ã÷£º
**************************************************************************/
static int check_files_read()
{
	if(file_read_test(NV_FS_RW_MAIN_PATH) < 0)
	{
		printf("fs_check file: %s  read loss \n",NV_FS_RW_MAIN_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  read loss \n",NV_FS_RW_MAIN_PATH);
		return -1;//²é¿´rw_workÎļþÊÇ·ñ¿É¶Á
	}
	if(file_read_test(NV_FS_RW_BACKUP_PATH) < 0)
	{
		printf("fs_check file: %s  read loss \n",NV_FS_RW_BACKUP_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  read loss \n",NV_FS_RW_BACKUP_PATH);
		return -1;//²é¿´rw_backupÎļþÊÇ·ñ¿É¶Á
	}
	if(file_read_test(NV_FS_FAC_SYMBOL_PATH) < 0)
	{
		printf("fs_check file: %s  read loss \n",NV_FS_FAC_SYMBOL_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  read loss \n",NV_FS_FAC_SYMBOL_PATH);
		return -1;//²é¿´fac_flagÎļþÊÇ·ñ¿É¶Á
	}
	if(file_read_test(NV_FS_RW_MAIN_SYMBOL_PATH) < 0)
	{
		printf("fs_check file: %s  read loss \n",NV_FS_RW_MAIN_SYMBOL_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  read loss \n",NV_FS_RW_MAIN_SYMBOL_PATH);
		return -1;//²é¿´work_flagÎļþÊÇ·ñ¿É¶Á
	}
	if(file_read_test(NV_FS_RW_BACKUP_SYMBOL_PATH) < 0)
	{
		printf("fs_check file: %s  read loss \n",NV_FS_RW_BACKUP_SYMBOL_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  read loss \n",NV_FS_RW_BACKUP_SYMBOL_PATH);
		return -1;//²é¿´backup_flagÎļþÊÇ·ñ¿É¶Á
	}
	if(file_read_test(NV_FS_RW_AP_NV_MAIN_PATH) < 0)
	{
		printf("fs_check file: %s  read loss \n",NV_FS_RW_AP_NV_MAIN_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  read loss \n",NV_FS_RW_AP_NV_MAIN_PATH);
		return -1;//²é¿´apϹ¤×÷nvÎļþÊÇ·ñ¿É¶Á
	}
	if(file_read_test(NV_FS_RW_AP_NV_BACKUP_PATH) < 0)
	{
		printf("fs_check file: %s  read loss \n",NV_FS_RW_AP_NV_BACKUP_PATH);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check file: %s  read loss \n",NV_FS_RW_AP_NV_BACKUP_PATH);
		return -1;//²é¿´apϱ¸·ÝnvÎļþÊÇ·ñ¿É¶Á
	}

	return 0;
}

/**************************************************************************
* º¯ÊýÃû³Æ£º check_userdata_is_space_enough
* ¹¦ÄÜÃèÊö£º ¼ì²éuserdata·ÖÇøÏÂÃæµÄ¿Õ¼äÊÇ·ñ×ã¹»£¬²»×ãʱÐèÒªÖØлָ´userdata·ÖÇø
* ²ÎÊý˵Ã÷£º (IN)
*            (OUT)
* ·µ »Ø Öµ£º¼ì²é¿Õ¼ä×ã¹»·µ»Ø0, ¿Õ¼ä²»×㣬ÐèÒªÖØлָ´·ÖÇø·µ»Ø-1
* ÆäËü˵Ã÷£º
**************************************************************************/
int check_userdata_space_enough()
{
    int fd = 0;
    char fsckname[] = "/etc_rw/fscheck";
    char buf[] = "filesystem checking";
    int len = strlen(buf);
    char *ptr = buf;
    int res = 0;
    int ret = 0;

#if 0
    struct statfs diskinfo;
    statfs("/mnt/userdata", &diskinfo);

    printf("fs_check f_bsize = %d, f_blocks = %d, f_bfree = %d, f_bavail = %d, f_files = %d, , f_ffree = %d\n", \
        diskinfo.f_bsize, diskinfo.f_blocks, diskinfo.f_bfree, diskinfo.f_bavail, diskinfo.f_files, diskinfo.f_ffree);

    //»ñÈ¡Ê£Óà¿Õ¼äÊÇ·ñ´óÓÚµÈÓÚÁ½¸öblock
    if ((diskinfo.f_bsize * diskinfo.f_bfree  < CONFIG_BLOCK_SIZE * USERDATA_RESET_FREE_BLOCK_LEVEL) || 
        (diskinfo.f_bsize * diskinfo.f_bavail  < CONFIG_BLOCK_SIZE * USERDATA_RESET_FREE_BLOCK_LEVEL))
        return -1;
#endif

    fd = open(fsckname, O_WRONLY | O_CREAT | O_TRUNC, 0644);
    if (fd < 0)
    {
        printf("open %s failed errno %d\n", fsckname, errno);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "open %s failed errno %d\n", fsckname, errno);
        return -1;
    }
    while (len > 0)
    {
        res = write(fd, ptr, len);
        if (res < 0)
        {
            if (errno == EINTR)
            {
                res = 0;
            }
            else
            {
                printf("write %s failed errno %d\n", fsckname, errno);
				sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "write %s failed errno %d\n", fsckname, errno);
                ret = -1;
                break;
            }
        }
        ptr += res;
        len -= res;
    }

    
    if (close(fd) < 0)
    {
        printf("close %s failed errno %d\n", fsckname, errno);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "close %s failed errno %d\n", fsckname, errno);
        return -1;
    }
    return ret;
}

/**************************************************************************
* º¯ÊýÃû³Æ£º check_userdata_is_normal
* ¹¦ÄÜÃèÊö£º ¼ì²éuserdata·ÖÇøÏÂÃæµÄÎļþÊÇ·ñÕý³££¬Èç¹û´æÔÚÒì³££¬ÔòÐèÒªÖØлָ´userdata·ÖÇø
* ²ÎÊý˵Ã÷£º (IN)
*            dst_file:  Ä¿±êÎļþ
*            src_file:  Ô´Îļþ
*            (OUT)
* ·µ »Ø Öµ£º¼ì²éÕý³£·µ»Ø0, ÐèÒªÖØлָ´·ÖÇø·µ»Ø-1
* ÆäËü˵Ã÷£º
**************************************************************************/
int check_userdata_is_normal()
{
	struct stat fac_nv_buf = {0};
    struct stat work_buf = {0};
	struct stat backup_buf = {0};

    if (check_userdata_space_enough() < 0)
        return -1;
	if (access(NV_FS_RW_TOP_PATH, F_OK) != 0)
	{
		if (mkdir(NV_FS_RW_TOP_PATH, 0755) != 0)
		{
			printf("fs_check access and mkdir %s failed\n", NV_FS_RW_TOP_PATH);
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check access and mkdir %s failed\n", NV_FS_RW_TOP_PATH);
			return -1;
		}
	}
	/*userdata·ÖÇøÊÇ·ñ¼ì²éÐèÒªÂú×ãÒÔÏÂÁ½¸öÌõ¼þ£º
	*1)²é¿´userdata·ÖÇøÏÂÃæµÄnvrwall.hashÊÇ·ñ´æÔÚ£¬²»´æÔÚ±íʾÊǸÕÉÕÍê°æ±¾£¬Õâʱºò²»¼ì²é
	*2)imageϵÄhashºÍpsnvĿ¼ÏÂÃæµÄnvrwall.hashÊÇ·ñÒ»Ö£¬Èç¹ûÒ»Ö½øÐмì²é£¬·ñÔò²»½øÐмì²é£¨¹ýÂËfotaÉý¼¶£©
	*/
	if(access(NV_FS_RW_HASH_WORK_PATH, F_OK) < 0)
		return 0;

	if (check_files_read() < 0)
	{
		return -1;//userdata·ÖÇøϵÄÎļþ¶ÁÊÇ·ñÕý³£
	}
	if(compare_file(NV_FS_RW_HASH_FAC_PATH, NV_FS_RW_HASH_WORK_PATH) == 0)
	{
		if(check_files_access() < 0)
		{
			return -1;//userdata·ÖÇøϵÄÎļþ·ÃÎÊȨÏÞÒì³£ÐèÒª»Ö¸´
		}
		if(stat(NV_FS_FAC_MAIN_PATH, &fac_nv_buf) < 0)
		{
			return 0;
		}
		
		if(stat(NV_FS_RW_MAIN_PATH, &work_buf) < 0)
		{
			printf("fs_check stat %s failed\n",NV_FS_RW_MAIN_PATH);
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check stat %s failed\n",NV_FS_RW_MAIN_PATH);
			return -1;
		}
		if(stat(NV_FS_RW_BACKUP_PATH, &backup_buf) < 0)
		{
			printf("fs_check stat %s failed\n",NV_FS_RW_BACKUP_PATH);
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check stat %s failed\n",NV_FS_RW_BACKUP_PATH);
			return -1;
		}
		if(work_buf.st_size < fac_nv_buf.st_size || backup_buf.st_size < fac_nv_buf.st_size)
		{	
			printf("fs_check rw_backup or rw_work file corrupted\n");
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check rw_backup or rw_work file corrupted\n");
			return -1;//userdata·ÖÇøÏµĹ¤×÷ÇønvºÍ±¸·ÝÇønv±È³ö³§ÇønvС£¬ÐèÒª»Ö¸´
		}
	}
	
	return 0;
	
}

int mount_fs_partition(struct mtd_fs *p_fs)
{
	int ret = -1;
	int ubi_num = 0;
	int mtd_blk_num = 0;
	char mount_cmd[MAX_PATH] = {0};
	char mtd_path[MAX_PATH] = {0};
	char attach_cmd[MAX_PATH] = {0};		
	
	if (NULL == p_fs->patition_name || NULL == p_fs->mount_point || NULL == p_fs->fs_type)
		return -1;

	//printf("fs_check i_parti_name=%s, parti_mp=%s, parti_mt=%s\n", p_fs->patition_name, p_fs->mount_point, p_fs->fs_type);

	if (strcmp(p_fs->patition_name, "cpfs") == 0) {
		ret = mtd_find(p_fs->patition_name, mtd_path, DEVICE_MTD_BLOCK, MAX_PATH);
		if (ret < 0) {
			printf("fs_check partition name is not find\n");
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check partition name is not find\n");
			return -1;
		}
		snprintf(mount_cmd, sizeof(mount_cmd), "%s/bin/mount -t yaffs2  -o \"inband-tags\"  %s %s", g_path_prefix,mtd_path, p_fs->mount_point);
	} else if (strcmp(p_fs->fs_type, "jffs2") == 0) {
		ret = mtd_find(p_fs->patition_name, mtd_path, DEVICE_MTD_BLOCK, MAX_PATH);
		if (ret < 0) {
			printf("fs_check partition name is not find\n");
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check partition name is not find\n");
			return -1;
		}
		snprintf(mount_cmd, sizeof(mount_cmd), "%s/bin/mount -t jffs2 %s %s %s",  g_path_prefix,p_fs->mount_opt ,mtd_path, p_fs->mount_point);
	} else if (strcmp(p_fs->fs_type, "ubifs") == 0) {
		ret = mtd_find(p_fs->patition_name, mtd_path, DEVICE_MTD_BLOCK, MAX_PATH);
		if (ret < 0) {
			printf("fs_check partition name is not find\n");
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check partition name is not find\n");
			return -1;
		}
		sscanf(mtd_path, "/dev/mtdblock%d", &mtd_blk_num);
		snprintf(attach_cmd, sizeof(attach_cmd), "%s/usr/sbin/ubiattach /dev/ubi_ctrl -m %d", g_path_prefix,mtd_blk_num);

		ret = system_exec_status(zxic_system(attach_cmd));
		if (ret == SYSTEM_EXEC_FAIL) {
			printf("fs_check: %s fail\n",attach_cmd);
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check: %s fail\n",attach_cmd);
			return -1;
		}
		
		ubi_num = get_ubifs_device_num(mtd_blk_num);
		if (ubi_num < 0) {
			printf("fs_check ubi_num not match\n");
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check ubi_num not match\n");
			return -1;
		}
		snprintf(mount_cmd, sizeof(mount_cmd), "%s/bin/mount -t ubifs -o rw ubi%d_0 %s", g_path_prefix,ubi_num, p_fs->mount_point);
	} else {
		printf("fs_check unknown mount type: %s\n", p_fs->fs_type);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check unknown mount type: %s\n", p_fs->fs_type);
		return -1;
	}

	ret = zxic_system(mount_cmd);

	if (check_mount_result(p_fs->mount_point) < 0) {
		printf("fs_check : %s fail\n", mount_cmd); 
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check : %s fail\n", mount_cmd);
		return -1;
	}
	return 0;
}

int unmount_fs_partition(struct mtd_fs *p_fs)
{
	int ret = -1;
	int ubi_num = 0;
	int mtd_blk_num = 0;
	char umount_cmd[MAX_PATH] = {0};
	char mtd_path[MAX_PATH] = {0};
	char detach_cmd[MAX_PATH] = {0};
	
	if (NULL == p_fs->patition_name || NULL == p_fs->mount_point || NULL == p_fs->fs_type)
		return -1;

	if (strcmp(p_fs->patition_name, "cpfs") == 0) {
		snprintf(umount_cmd, sizeof(umount_cmd), "%s/bin/umount -f %s ", g_path_prefix,p_fs->mount_point);
	} else if (strcmp(p_fs->fs_type, "jffs2") == 0) {
		snprintf(umount_cmd, sizeof(umount_cmd), "%s/bin/umount -f %s",  g_path_prefix,p_fs->mount_point);
	} else if (strcmp(p_fs->fs_type, "ubifs") == 0) {
		
		snprintf(umount_cmd, sizeof(umount_cmd), "%s/bin/umount -f %s", g_path_prefix,p_fs->mount_point);
		zxic_system(umount_cmd);
		printf("fs_check umount : %s\n", umount_cmd);
		
		ret = mtd_find(p_fs->patition_name, mtd_path, DEVICE_MTD_BLOCK, MAX_PATH);
		if (ret < 0) {
			printf("fs_check partition name is not find\n");
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check partition name is not find\n");
			return -1;
		}
		sscanf(mtd_path, "/dev/mtdblock%d", &mtd_blk_num);
		
		ubi_num = get_ubifs_device_num(mtd_blk_num);
		
		snprintf(detach_cmd, sizeof(detach_cmd), "%s/usr/sbin/ubidetach /dev/ubi_ctrl -d %d", g_path_prefix,ubi_num);

		ret = system_exec_status(zxic_system(detach_cmd));
		if (ret == SYSTEM_EXEC_FAIL) {
			printf("fs_check: %s fail\n",detach_cmd);
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check: %s fail\n",detach_cmd);
			return -1;
		}
		
		return 0;
	} else {
		printf("fs_check unknown umount type: %s\n", p_fs->fs_type);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check unknown umount type: %s\n", p_fs->fs_type);
		return -1;
	}
	printf("fs_check umount : %s\n", umount_cmd);
	ret = zxic_system(umount_cmd);

	return 0;
}

int mtd_erase_partition(const char* partition_name)
{
	int ret = 0;
	char mtd_path[MAX_PATH] = {0};
	int fd_mtd = -1;

	struct mtd_info_user meminfo = {0};
	struct erase_info_user64 erase_info = {0};

	if (NULL == partition_name) {
		return -1;
	}
	ret = mtd_find(partition_name, mtd_path, DEVICE_MTD, MAX_PATH);
	if (ret < 0) {
		printf("fs_check mtd_find %s failed\n", partition_name);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check mtd_find %s failed\n", partition_name);
		ret = -1;
		goto out;
	}
	fd_mtd = open(mtd_path, O_RDWR);
	if (fd_mtd < 0) {
		printf("fs_check open %s error, %s\n", partition_name, strerror(errno));
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check open %s error, %s\n", partition_name, strerror(errno));
		ret = -1;
		goto out;
	}
	if (ioctl(fd_mtd, MEMGETINFO, &meminfo) != 0) {
		printf("fs_check get %s info error, %s\n", partition_name, strerror(errno));
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check get %s info error, %s\n", partition_name, strerror(errno));
		ret = -1;
		goto out;
	}
	erase_info.length = meminfo.erasesize;
	for (erase_info.start = 0; erase_info.start < meminfo.size; erase_info.start += meminfo.erasesize) {
		if (ioctl(fd_mtd, MEMGETBADBLOCK, &(erase_info.start)) > 0) {
			printf("fs_check mtd, not erasing bad block at 0x%llx\n", erase_info.start);
			continue;
		}
		if (ioctl(fd_mtd, MEMERASE64, &erase_info) < 0) {
			printf("fs_check mtd, erasing failure at 0x%llx\n", erase_info.start);
		}
	}
	ret = 0;
out:
	if (fd_mtd >= 0) {
		close(fd_mtd);
	}
	return ret;
}

int mtd_write_partition(const char* partition_name, const char* image_file)
{
	int ret = 0;
	char mtd_path[MAX_PATH] = {0};
	int fd_mtd = -1;
	struct mtd_info_user meminfo = {0};

	long long index = 0;
	int len     = 0;
	FILE * fp   = NULL;
	char * buf  = NULL;
	struct stat statbuff = {0};	

	if (NULL == partition_name || NULL == image_file)
		return -1;

	ret = mtd_find(partition_name, mtd_path, DEVICE_MTD, MAX_PATH);
	if (ret < 0) {
		printf("fs_check mtd_find %s failed\n", partition_name);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check mtd_find %s failed\n", partition_name);
		ret = -1;
		goto out;
	}
	fd_mtd = open(mtd_path, O_RDWR);
	if (fd_mtd < 0) {
		printf("fs_check open %s error, %s\n", partition_name, strerror(errno));
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check open %s error, %s\n", partition_name, strerror(errno));
		ret = -1;
		goto out;
	}
	if (ioctl(fd_mtd, MEMGETINFO, &meminfo) != 0) {
		printf("fs_check get %s info error, %s\n", partition_name, strerror(errno));
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check get %s info error, %s\n", partition_name, strerror(errno));
		ret = -1;
		goto out;
	}

	if(stat(image_file, &statbuff) < 0)
	{
		printf("fs_check stat %s failed\n", image_file);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check stat %s failed\n", image_file);
		ret = -1;
		goto out;
	}

    fp = fopen(image_file, "ro");
    if (!fp) 
	{
		printf("fs_check fopen %s failed\n", image_file);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check fopen %s failed\n", image_file);
		ret = -1;
		goto out;
	}

	buf = (char *)malloc(meminfo.erasesize);
	if(!buf)
	{
		printf("fs_check malloc failed\n");
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check malloc failed\n");
		ret = -1;
		goto out;
	}
	
	for (index = 0; index < meminfo.size && len < statbuff.st_size; index += meminfo.erasesize)
	{
		if (ioctl(fd_mtd, MEMGETBADBLOCK, &index) > 0) 
		{
			printf("fs_check mtd, not erasing bad block at %lld\n", index);
			continue;
		}

		memset(buf, 0xff, meminfo.erasesize);
		ret = fread(buf, 1, meminfo.erasesize, fp);
		if(ret < 0)
		{
			printf("fs_check mtd, fread error = %d!\n", ret);
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check mtd, fread error = %d!\n", ret);
			ret = -1;
			goto out;
		}
			
		ret = lseek(fd_mtd, (long)index, SEEK_SET);
		if(ret < 0)
		{
			printf("fs_check mtd, lseek error = %s!\n", strerror(errno));
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check mtd, lseek error = %s!\n", strerror(errno));
			ret = -1;
			goto out;
		}
		ret = write(fd_mtd, buf, (size_t)meminfo.erasesize);
		if (ret < 0 || ret != meminfo.erasesize) 
		{
			printf("fs_check mtd, write %s error = %d!\n", partition_name, ret);
			sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check mtd, write %s error = %d!\n", partition_name, ret);
			ret = -1;
			goto out;
		}
		len += meminfo.erasesize;
	}
	if (len < statbuff.st_size)
	{
		printf("fs_check mtd, No space left,writelen=%d, filesize=%d\n",len,statbuff.st_size);
		sc_debug_info_record(MODULE_ID_AP_FS_CHECK, "fs_check mtd, No space left,writelen=%d, filesize=%d\n",len,statbuff.st_size);
	}		
		
	ret = 0;
out:
	if (fd_mtd >= 0)
		close(fd_mtd);

	if (buf != NULL) {
		memset(buf, 0, meminfo.erasesize);
		free(buf);
	}

	if (fp != NULL)
		fclose(fp);

	return ret;
}