diag.py

#!/usr/bin/env python3
"""
Licensed under MIT License, (c) B. Kerler 2018-2021
"""

import sys
import os
import argparse
import json
import logging
from xml.etree import ElementTree
from enum import Enum

from struct import unpack, pack
from binascii import hexlify, unhexlify
import os, sys, inspect

current_dir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
parent_dir = os.path.dirname(current_dir)
sys.path.insert(0, parent_dir)

from edl.Library.utils import print_progress, read_object, write_object, LogBase
from edl.Library.usblib import UsbClass
from edl.Library.hdlc import hdlc

from edl.Config.usb_ids import default_diag_vid_pid

qcerror = {
    1: "None",
    2: "Unknown",
    3: "Open Port Fail",
    4: "Port not open",
    5: "Buffer too small",
    6: "Read data fail",
    7: "Open file fail",
    8: "File not open",
    9: "Invalid parameter",
    10: "Send write ram failed",
    11: "Send command failed",
    12: "Offline phone failed",
    13: "Erase rom failed",
    14: "Timeout",
    15: "Go cmd failed",
    16: "Set baudrate failed",
    17: "Say hello failed",
    18: "Write port failed",
    19: "Failed to read nv",
    20: "Failed to write nv",
    21: "Last failed but not recovery",
    22: "Backup file wasn't found",
    23: "Incorrect SPC Code",
    24: "Hello pkt isn't needed",
    25: "Not active"
}

diagerror = {
    20: "Generic error",
    21: "Bad argument",
    22: "Data too large",
    24: "Not connected",
    25: "Send pkt failed",
    26: "Receive pkt failed",
    27: "Extract pkt failed",
    29: "Open port failed",
    30: "Bad command",
    31: "Protected",
    32: "No media",
    33: "Empty",
    34: "List done"
}

nvitem_type = [
    ("item", "H"),
    ("rawdata", "128s"),
    ("status", "H")
]

subnvitem_type = [
    ("item", "H"),
    ("index", "H"),
    ("rawdata", "128s"),
    ("status", "H")
]


class fs_factimage_read_info():
    def_fs_factimage_read_info = [
        ("stream_state", "B"),  # 0 indicates no more data to be sent, otherwise set to 1
        ("info_cluster_sent", "B"),  # 0 indicates if info_cluster was not sent, else 1
        ("cluster_map_seqno", "H"),  # Sequence number of cluster map pages
        ("cluster_data_seqno", "I")  # Sequence number of cluster data pages
    ]

    def __init__(self, stream_state, info_cluster_sent, cluster_map_seqno, cluster_data_seqno):
        self.stream_state = stream_state
        self.info_cluster_sent = info_cluster_sent
        self.cluster_map_seqno = cluster_map_seqno
        self.cluster_data_seqno = cluster_data_seqno

    def fromdata(self, data):
        tmp = read_object(data[0:0x10], self.def_fs_factimage_read_info)
        self.stream_state = tmp["stream_state"]
        self.info_cluster_sent = tmp["info_cluster_sent"]
        self.cluster_map_seqno = tmp["cluster_map_seqno"]
        self.cluster_data_seqno = tmp["cluster_data_seqno"]

    def todata(self):
        data = write_object(self.def_fs_factimage_read_info, self.stream_state, self.info_cluster_sent,
                            self.cluster_map_seqno, self.cluster_data_seqno)
        return data


class FactoryHeader():
    def_factory_header = [
        ("magic1", "I"),
        ("magic2", "I"),
        ("fact_version", "H"),  # Version of this cluster
        # #Fields needed for the superblock
        ("version", "H"),  # Superblock version
        ("block_size", "I"),  # Pages per block.
        ("page_size", "I"),  # Page size in bytes.
        ("block_count", "I"),  # Total blocks in device.
        ("space_limit", "I"),  # Total number of used pages (defines the size of the map)
        ("upper_data", "32I")
    ]

    def __init__(self):
        self.magic1 = 0
        self.magic2 = 0
        self.fact_version = 0
        self.version = 0
        self.block_size = 0
        self.page_size = 0
        self.block_count = 0
        self.space_limit = 0
        self.upper_data = [0 * 32]

    def fromdata(self, data):
        tmp = read_object(data[0:0x9C], self.def_factory_header)
        self.magic1 = tmp["magic1"]
        self.magic2 = tmp["magic2"]
        self.fact_version = tmp["fact_version"]
        self.version = tmp["version"]
        self.block_size = tmp["block_size"]
        self.page_size = tmp["page_size"]
        self.block_count = tmp["block_count"]
        self.space_limit = tmp["space_limit"]
        self.upper_data = tmp["upper_data"]

    def todata(self):
        data = write_object(self.magic1, self.magic2, self.fact_version, self.version, self.block_size, self.page_size,
                            self.block_count, self.space_limit, self.upper_data)
        return data


class nvitem():
    item = 0x0
    data = b""
    status = 0x0
    index = 0x0
    name = ""

    def __init__(self, item, index, data, status, name):
        self.item = item
        self.index = index
        self.data = data
        self.status = status
        self.name = name


class diag_cmds(Enum):
    DIAG_VERNO_F = 0
    DIAG_ESN_F = 1
    DIAG_PEEKB_F = 2
    DIAG_PEEKW_F = 3
    DIAG_PEEKD_F = 4
    DIAG_POKEB_F = 5
    DIAG_POKEW_F = 6
    DIAG_POKED_F = 7
    DIAG_OUTP_F = 8
    DIAG_OUTPW_F = 9
    DIAG_INP_F = 0xA
    DIAG_INPW_F = 0xB
    DIAG_STATUS_F = 0xC
    DIAG_LOGMASK_F = 0xF
    DIAG_LOG_F = 0x10
    DIAG_NV_PEEK_F = 0x11
    DIAG_NV_POKE_F = 0x12
    DIAG_BAD_CMD_F = 0x13
    DIAG_BAD_PARM_F = 0x14
    DIAG_BAD_LEN_F = 0x15
    DIAG_BAD_MODE_F = 0x18
    DIAG_TAGRAPH_F = 0x19
    DIAG_MARKOV_F = 0x1a
    DIAG_MARKOV_RESET_F = 0x1b
    DIAG_DIAG_VER_F = 0x1c
    DIAG_TS_F = 0x1d
    DIAG_TA_PARM_F = 0x1E
    DIAG_MSG_F = 0x1f
    DIAG_HS_KEY_F = 0x20
    DIAG_HS_LOCK_F = 0x21
    DIAG_HS_SCREEN_F = 0x22
    DIAG_PARM_SET_F = 0x24
    DIAG_NV_READ_F = 0x26
    DIAG_NV_WRITE_F = 0x27
    DIAG_CONTROL_F = 0x29
    DIAG_ERR_READ_F = 0x2a
    DIAG_ERR_CLEAR_F = 0x2b
    DIAG_SER_RESET_F = 0x2c
    DIAG_SER_REPORT_F = 0x2d
    DIAG_TEST_F = 0x2e
    DIAG_GET_DIPSW_F = 0x2f
    DIAG_SET_DIPSW_F = 0x30
    DIAG_VOC_PCM_LB_F = 0x31
    DIAG_VOC_PKT_LB_F = 0x32
    DIAG_ORIG_F = 0x35
    DIAG_END_F = 0x36
    DIAG_SW_VERSION_F = 0x38
    DIAG_DLOAD_F = 0x3a
    DIAG_TMOB_F = 0x3b
    DIAG_STATE_F = 0x3f
    DIAG_PILOT_SETS_F = 0x40
    DIAG_SPC_F = 0x41
    DIAG_BAD_SPC_MODE_F = 0x42
    DIAG_PARM_GET2_F = 0x43
    DIAG_SERIAL_CHG_F = 0x44
    DIAG_PASSWORD_F = 0x46
    DIAG_BAD_SEC_MODE_F = 0x47
    DIAG_PR_LIST_WR_F = 0x48
    DIAG_PR_LIST_RD_F = 0x49
    DIAG_SUBSYS_CMD_F = 0x4b
    DIAG_FEATURE_QUERY_F = 0x51
    DIAG_SMS_READ_F = 0x53
    DIAG_SMS_WRITE_F = 0x54
    DIAG_SUP_FER_F = 0x55
    DIAG_SUP_WALSH_CODES_F = 0x56
    DIAG_SET_MAX_SUP_CH_F = 0x57
    DIAG_PARM_GET_IS95B_F = 0x58
    DIAG_FS_OP_F = 0x59
    # DIAG_RAM_RW_F = 0x59
    DIAG_AKEY_VERIFY_F = 0x5A
    # DIAG_CPU_RW_F = 0x5a
    DIAG_BMP_HS_SCREEN_F = 0x5b
    DIAG_CONFIG_COMM_F = 0x5c
    DIAG_EXT_LOGMASK_F = 0x5d
    DIAG_EVENT_REPORT_F = 0x60
    DIAG_STREAMING_CONFIG_F = 0x61
    DIAG_PARM_RETRIEVE_F = 0x62
    DIAG_STATUS_SNAPSHOT_F = 0x63
    DIAG_RPC_F = 0x64
    DIAG_GET_PROPERTY_F = 0x65
    DIAG_PUT_PROPERTY_F = 0x66
    DIAG_GET_GUID_F = 0x67
    DIAG_USER_CMD_F = 0x68
    DIAG_GET_PERM_PROPERTY_F = 0x69
    DIAG_PUT_PERM_PROPERTY_F = 0x6a
    DIAG_PERM_USER_CMD_F = 0x6b
    DIAG_GPS_SESS_CTRL_F = 0x6c
    DIAG_GPS_GRID_F = 0x6d
    DIAG_GPS_STATISTICS_F = 0x6E
    DIAG_TUNNEL_F = 0x6f
    DIAG_MAX_F = 0x70
    DIAG_SET_FTM_TEST_MODE = 0x72
    DIAG_EXT_BUILD_ID_F = 0x7c


class efs_cmds(Enum):
    EFS2_DIAG_HELLO = 0  # Parameter negotiation packet
    EFS2_DIAG_QUERY = 1  # Send information about EFS2 params
    EFS2_DIAG_OPEN = 2  # Open a file
    EFS2_DIAG_CLOSE = 3  # Close a file
    EFS2_DIAG_READ = 4  # Read a file
    EFS2_DIAG_WRITE = 5  # Write a file
    EFS2_DIAG_SYMLINK = 6  # Create a symbolic link
    EFS2_DIAG_READLINK = 7  # Read a symbolic link
    EFS2_DIAG_UNLINK = 8  # Remove a symbolic link or file
    EFS2_DIAG_MKDIR = 9  # Create a directory
    EFS2_DIAG_RMDIR = 10  # Remove a directory
    EFS2_DIAG_OPENDIR = 11  # Open a directory for reading
    EFS2_DIAG_READDIR = 12  # Read a directory
    EFS2_DIAG_CLOSEDIR = 13  # Close an open directory
    EFS2_DIAG_RENAME = 14  # Rename a file or directory
    EFS2_DIAG_STAT = 15  # Obtain information about a named file
    EFS2_DIAG_LSTAT = 16  # Obtain information about a symbolic link
    EFS2_DIAG_FSTAT = 17  # Obtain information about a file descriptor
    EFS2_DIAG_CHMOD = 18  # Change file permissions
    EFS2_DIAG_STATFS = 19  # Obtain file system information
    EFS2_DIAG_ACCESS = 20  # Check a named file for accessibility
    EFS2_DIAG_NAND_DEV_INFO = 21  # Get NAND device info
    EFS2_DIAG_FACT_IMAGE_START = 22  # Start data output for Factory Image
    EFS2_DIAG_FACT_IMAGE_READ = 23  # Get data for Factory Image
    EFS2_DIAG_FACT_IMAGE_END = 24  # End data output for Factory Image
    EFS2_DIAG_PREP_FACT_IMAGE = 25  # Prepare file system for image dump
    EFS2_DIAG_PUT_DEPRECATED = 26  # Write an EFS item file
    EFS2_DIAG_GET_DEPRECATED = 27  # Read an EFS item file
    EFS2_DIAG_ERROR = 28  # Send an EFS Error Packet back through DIAG
    EFS2_DIAG_EXTENDED_INFO = 29  # Get Extra information.
    EFS2_DIAG_CHOWN = 30  # Change ownership
    EFS2_DIAG_BENCHMARK_START_TEST = 31  # Start Benchmark
    EFS2_DIAG_BENCHMARK_GET_RESULTS = 32  # Get Benchmark Report
    EFS2_DIAG_BENCHMARK_INIT = 33  # Init/Reset Benchmark
    EFS2_DIAG_SET_RESERVATION = 34  # Set group reservation
    EFS2_DIAG_SET_QUOTA = 35  # Set group quota
    EFS2_DIAG_GET_GROUP_INFO = 36  # Retrieve Q&R values
    EFS2_DIAG_DELTREE = 37  # Delete a Directory Tree
    EFS2_DIAG_PUT = 38  # Write a EFS item file in order
    EFS2_DIAG_GET = 39  # Read a EFS item file in order
    EFS2_DIAG_TRUNCATE = 40  # Truncate a file by the name
    EFS2_DIAG_FTRUNCATE = 41  # Truncate a file by a descriptor
    EFS2_DIAG_STATVFS_V2 = 42  # Obtains extensive file system info


O_RDONLY = 0
O_WRONLY = 1
O_RDWR = 2
O_ACCMODE = O_RDONLY | O_WRONLY | O_RDWR
FS_DIAG_MAX_READ_REQ = 1024


# define DIAG_NV_WRITE_F 0x27
# define DIAG_NV_READ_F 0x26

class qcdiag(metaclass=LogBase):
    def __init__(self, loglevel, portconfig, ep_in=-1, ep_out=-1):
        self.portconfig = portconfig
        self.nvlist = {}
        self.ep_in = ep_in
        self.ep_out = ep_out
        self.__logger.setLevel(loglevel)
        if loglevel == logging.DEBUG:
            logfilename = "log.txt"
            fh = logging.FileHandler(logfilename)
            self.__logger.addHandler(fh)
        import os, sys, inspect
        current_dir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))

        nvxml = os.path.join(current_dir, "edl", "Config", "nvitems.xml")
        e = ElementTree.parse(nvxml).getroot()
        for atype in e.findall("nv"):
            name = atype.get("name")
            identifier = int(atype.get("id"))
            self.nvlist[identifier] = name

    def prettyprint(self, data):
        recv = ""
        plain = ""
        for i in range(len(data)):
            inf = "%02X " % data[i]
            recv += inf
            if data[i] == 0x0D or data[i] == 0x0A or (0x20 <= data[i] <= 0x9A):
                plain += chr(data[i])
            else:
                plain += " "
            if ((i + 1) % 16) == 0:
                recv += "\n"
                plain += "\n"
        res = recv + "\n-----------------------------------------------\n"
        if len(plain.replace(" ", "").replace("\n", "")) > 0:
            res += plain
        return res

    def decodestatus(self, data):
        info = data[0]
        if info == 0x13:
            return "Invalid Command Response"
        elif info == 0x14:
            return "Invalid parameter Response"
        elif info == 0x15:
            return "Invalid packet length Response"
        elif info == 0x17:
            return "Send Security Mode"
        elif info == 0x18:
            return "Packet not allowed in this mode ( online vs offline )"
        elif info == 0x42:
            return "Invalid nv_read/write because SP is locked"
        elif info == diag_cmds.DIAG_BAD_SEC_MODE_F.value:
            return "Security privileges required"
        else:
            return "Command accepted"

    def connect(self):
        self.cdc = UsbClass(portconfig=self.portconfig, loglevel=self.__logger.level)
        self.hdlc = None
        if self.cdc.connect(self.ep_in, self.ep_out):
            self.hdlc = hdlc(self.cdc)
            data = self.hdlc.receive_reply(1)
            return True
        return False

    def disconnect(self):
        self.cdc.close(True)

    def send(self, cmd):
        if self.hdlc != None:
            return self.hdlc.send_cmd_np(cmd)

    def cmd_info(self):
        reply = self.send(b"\x00")
        return self.prettyprint(reply)

    def enforce_crash(self):
        # ./diag.py -nvwrite 1027,01 enable adsp log NV_MDSP_MEM_DUMP_ENABLED_I
        # ./diag.py -nvwrite 4399,01 enable download on reboot NV_DETECT_HW_RESET_I
        res = self.send(b"\x4B\x25\x03\x00")
        print(self.decodestatus(res))

    def enter_downloadmode(self):
        res = self.send(b"\x3A")
        print(self.decodestatus(res))

    def enter_saharamode(self):
        self.hdlc.receive_reply()
        res = self.send(b"\x4b\x65\x01\x00")
        if res[0]==0x4b:
            print("Done, switched to edl")
        else:
            print("Error switching to edl. Try again.")
        self.disconnect()


    def send_sp(self, sp="FFFFFFFFFFFFFFFFFFFE"):
        if type(sp) == str:
            sp = unhexlify(sp)
        else:
            sp = bytes(sp)
        if len(sp) < 8:
            print("SP length must be 8 bytes")
            return
        res = self.send(b"\x46" + sp)
        if res[0] != 0x46:
            res = self.send(b"\x25" + sp)
        elif res[0] == 0x46:
            if res[1] == 0x0:
                print("Security Password is wrong")
            elif res[1] == 0x1:
                print("Security Password accepted.")
        elif res[0] != 0x25:
            print(self.decodestatus(res))
        return res

    def send_spc(self, spc="303030303030"):
        if type(spc) == str:
            spc = unhexlify(spc)
        else:
            spc = bytes(spc)
        if len(spc) < 6:
            print("SPC length must be 6 bytes")
            return
        res = self.send(b"\x41" + spc)
        if res[0] != 0x41:
            print(self.decodestatus(res))
        else:
            if res[1] == 0x0:
                print("SPC is wrong")
            elif res[1] == 0x1:
                print("SPC accepted.")
        return res

    def DecodeNVItems(self, nvitem):
        if nvitem.status == 0x1:
            return "Internal DMSS use"
        elif nvitem.status == 0x2:
            return "Unrecognized command"
        elif nvitem.status == 0x3:
            return "NV memory full"
        elif nvitem.status == 0x4:
            return "Command failed"
        elif nvitem.status == 0x5:
            return "Inactive Item"
        elif nvitem.status == 0x6:
            return "Bad Parameter"
        elif nvitem.status == 0x7:
            return "Item was read-only"
        elif nvitem.status == 0x8:
            return "Item not defined for this target"
        elif nvitem.status == 0x9:
            return "No more free memory"
        elif nvitem.status == 0xA:
            return "Internal use"
        elif nvitem.status == 0x0:
            return "OK"
        return ""

    def print_nvitem(self, item):
        res, nvitem = self.read_nvitem(item)
        if res:
            info = self.DecodeNVItems(nvitem)
            if res != False:
                if nvitem.name != "":
                    ItemNumber = f"{hex(item)} ({nvitem.name}): "
                else:
                    ItemNumber = hex(item) + ": "
                returnanswer = "NVItem " + ItemNumber + info
                print(returnanswer)
                if nvitem.status == 0:
                    print("-----------------------------------------")
                    print(self.prettyprint(nvitem.data))
            else:
                print(nvitem)
        else:
            print(nvitem)

    def print_nvitemsub(self, item, index):
        res, nvitem = self.read_nvitemsub(item,index)
        info = self.DecodeNVItems(nvitem)
        if res != False:
            if nvitem.name != "":
                ItemNumber = f"{hex(item),hex(index)} ({nvitem.name}): "
            else:
                ItemNumber = hex(item)+","+hex(index) + ": "
            returnanswer = "NVItem " + ItemNumber + info
            print(returnanswer)
            if nvitem.status == 0:
                print("-----------------------------------------")
                print(self.prettyprint(nvitem.data))
        else:
            print(nvitem)

    def backup_nvitems(self, filename, errorlog=""):
        nvitems = []
        pos = 0
        old = 0
        errors = ""
        print("Dumping nvitems 0x0 to 0xFFFF.")
        for item in range(0, 0xFFFF):
            prog = int(float(pos) / float(0xFFFF) * float(100))
            if prog > old:
                print_progress(prog, 100, prefix="Progress:", suffix=f"Complete, item {hex(item)}", bar_length=50)
                old = prog
            res, nvitem = self.read_nvitem(item)
            if res != False:
                if nvitem.status != 0x5:
                    nvitem.status = self.DecodeNVItems(nvitem)
                    nvitems.append(dict(id=nvitem.item, name=nvitem.name, data=hexlify(nvitem.data).decode("utf-8"),
                                        status=nvitem.status))
            else:
                errors += nvitem + "\n"
            pos += 1
        js = json.dumps(nvitems)
        with open(filename, "w") as write_handle:
            write_handle.write(js)
        if errorlog == "":
            print(errors)
        else:
            with open(errorlog, "w") as write_handle:
                write_handle.write(errors)
        print("Done.")

    def unpackdata(self,data):
        rlen = len(data)
        idx = rlen - 1
        for i in range(0, rlen):
            byte = data[rlen - i - 1]
            if byte != 0:
                break
            idx = rlen - i - 1
        return data[:idx]

    def read_nvitem(self, item):
        rawdata = 128 * b"\x00"
        status = 0x0000
        nvrequest = b"\x26" + write_object(nvitem_type, item, rawdata, status)["raw_data"]
        data = self.send(nvrequest)
        if len(data) == 0:
            data = self.send(nvrequest)
        if len(data) > 0:
            if data[0] == 0x26:
                res = read_object(data[1:], nvitem_type)
                name = ""
                if item in self.nvlist:
                    name = self.nvlist[item]
                data=self.unpackdata(res["rawdata"])
                res = nvitem(res["item"],0, data, res["status"], name)
                return [True, res]
            elif data[0] == 0x14:
                return [False, f"Error 0x14 trying to read nvitem {hex(item)}."]
            else:
                return [False, f"Error {hex(data[0])} trying to read nvitem {hex(item)}."]
        return [False, f"Empty request for nvitem {hex(item)}"]

    def read_nvitemsub(self, item, index):
        rawdata = 128 * b"\x00"
        status = 0x0000
        nvrequest = b"\x4B\x30\x01\x00" + write_object(subnvitem_type, item, index, rawdata, status)["raw_data"]
        data = self.send(nvrequest)
        if len(data) == 0:
            data = self.send(nvrequest)
        if len(data) > 0:
            if data[0] == 0x4B:
                res = read_object(data[4:], subnvitem_type)
                name = ""
                if item in self.nvlist:
                    name = self.nvlist[item]
                data=self.unpackdata(res["rawdata"])
                res = nvitem(res["item"], index, data, res["status"], name)
                return [True, res]
            elif data[0] == 0x14:
                return [False, f"Error 0x14 trying to read nvitem {hex(item)}."]
            else:
                return [False, f"Error {hex(data[0])} trying to read nvitem {hex(item)}."]
        return [False, f"Empty request for nvitem {hex(item)}"]

    def convertimei(self,imei):
        data=imei[0]+"A"
        for i in range(1,len(imei),2):
            data+=imei[i+1]
            data+=imei[i]
        return unhexlify("08"+data)

    def write_imei(self,imeis):
        if "," in imeis:
            imeis=imeis.split(",")
        else:
            imeis=[imeis]
        index=0
        for imei in imeis:
            data=self.convertimei(imei)
            if index==0:
                if not self.write_nvitem(550,data):
                    self.write_nvitemsub(550,index,data)
            else:
                self.write_nvitemsub(550,index,data)
            index+=1

    def write_nvitem(self, item, data):
        rawdata = bytes(data)
        while len(rawdata) < 128:
            rawdata += b"\x00"
        status = 0x0000
        nvrequest = b"\x27" + write_object(nvitem_type, item, rawdata, status)["raw_data"]
        res = self.send(nvrequest)
        if len(res) > 0:
            if res[0] == 0x27:
                res, nvitem = self.read_nvitem(item)
                if res == False:
                    print(f"Error while writing nvitem {hex(item)} data, %s" % data)
                else:
                    if nvitem.data != data:
                        print(f"Error while writing nvitem {hex(item)} data, verified data doesn't match")
                    else:
                        print(f"Successfully wrote nvitem {hex(item)}.")
                        return True
                return False
            else:
                print(f"Error while writing nvitem {hex(item)} data, %s" % data)

    def write_nvitemsub(self, item, index, data):
        rawdata = bytes(data)
        while len(rawdata) < 128:
            rawdata += b"\x00"
        status = 0x0000
        nvrequest = b"\x4B\x30\x02\x00" + write_object(subnvitem_type, item, index, rawdata, status)["raw_data"]
        res = self.send(nvrequest)
        if len(res) > 0:
            if res[0] == 0x4B:
                res, nvitem = self.read_nvitemsub(item,index)
                if res == False:
                    print(f"Error while writing nvitem {hex(item)} index {hex(index)} data, %s" % data)
                else:
                    if nvitem.data != data:
                        print(f"Error while writing nvitem {hex(item)} index {hex(index)} data, verified data doesn't match")
                    else:
                        print(f"Successfully wrote nvitem {hex(item)} index {hex(index)}.")
                        return True
                return False
            else:
                print(f"Error while writing nvitem {hex(item)} index {hex(index)} data, %s" % data)

    def efsread(self, filename):
        alternateefs = b"\x4B\x3E\x19\x00"
        standardefs = b"\x4B\x13\x19\x00"
        resp = self.send(alternateefs)
        if resp[0] == 0x4B:
            efsmethod = 0x3E
        else:
            resp = self.send(standardefs)
            if resp[0] == 0x4B:
                efsmethod = 0x13
            else:
                print("No known efs method detected for reading.")
                return

        if filename == "":
            return False
        write_handle = open(filename, "wb")
        if write_handle is None:
            print("Error on writing file ....")
            return False

        print("Reading EFS ....")
        fefs = fs_factimage_read_info(0, 0, 0, 0)

        # EFS Cmd
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_PREP_FACT_IMAGE.value, 0x00)  # prepare factory image

        resp = self.send(buf)
        if len(resp) == 0:
            print("Phone does not respond. Maybe another software is blocking the port.")
            return False

        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_FACT_IMAGE_START.value,
                   0x00)  # indicate start read out factory image

        resp = self.send(buf)

        # EFS Cmd
        buf = pack("<BBBBBBHI", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_FACT_IMAGE_READ.value, 0x00, fefs.stream_state,
                   fefs.info_cluster_sent,
                   fefs.cluster_map_seqno, fefs.cluster_data_seqno)

        resp = self.send(buf)
        if resp == 0 or resp == -1:
            info = ("Page %08X error !\n" % fefs.cluster_data_seqno)
            print(info)
            resp = self.send(buf)
            if resp == 0 or resp == -1:
                print("Data Error occured, ") + info

        error = unpack("<I", resp[4:8])[0]

        if (resp[0] == 0x13) or (resp[0] == 0x14) or (resp[0] == 0x15) or (error != 0x0):
            print("EFS Read not supported by phone. Aborting")
            write_handle.close()
            return False
        elif resp[0] == 0x47:
            print("Send Security Password (SP) first !")
            write_handle.close()
            return False

        efserr = False
        fh = FactoryHeader()
        if len(resp) > 0:
            write_handle.write(resp[0x10:-0x1])
            fefs.fromdata(resp[0x8:0x10])
            fh.fromdata(resp[0x10:0x10 + (39 * 4)])

        old = 0
        print_progress(0, 100, prefix="Progress:", suffix="Complete", bar_length=50)
        total = fh.block_size * fh.block_count * (fh.page_size // 0x200)

        # Real start
        for page in range(0, total):
            # EFS Cmd
            buf = pack("<BBBBBBHI", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_FACT_IMAGE_READ.value, 0x00,
                       fefs.stream_state, fefs.info_cluster_sent,
                       fefs.cluster_map_seqno, fefs.cluster_data_seqno)

            pos = int(page / total * 100)
            if pos > old:
                print_progress(pos, 100, prefix="Progress:", suffix="Page %d of %d" % (page, total), bar_length=50)
                old = pos

            resp = self.send(buf)
            if resp == 0:
                resp = self.send(buf)

            if resp == 0 or resp == -1:
                info = ("Page %08X !\n" % fefs.cluster_data_seqno)
                print(info)
                resp = self.send(buf)
                if resp == 0 or resp == -1:
                    print("Data Error occured, " + info)
            else:
                dlen = len(resp) - 0x11
                if dlen == 0x200 or dlen == 0x800:
                    if resp[0x0] == 0x4B:
                        write_handle.write(resp[0x10:0x10 + dlen])
                        fefs.fromdata(resp[0x8:0x10])
                    else:
                        if (resp[0x0] == 0x13) and (resp[0x1] == 0x62) and (len(resp) > 0x200):
                            write_handle.write(resp[0x14:-4])
                            fefs.fromdata(resp[0xc:0x14])
                            if fefs.stream_state == 0x0:
                                break
                        else:
                            print("EFS Read error : Wrong size recieved at page %X" % page)
                            efserr = True
                            break

        print_progress(100, 100, prefix="Progress:", suffix="Complete", bar_length=50)

        buf = bytearray()
        buf.append(0x4B)
        buf.append(efsmethod)
        buf.append(efs_cmds.EFS2_DIAG_FACT_IMAGE_END.value)  # end factory image
        buf.append(0x00)

        resp = self.send(buf)
        if len(resp) == 0:
            print("Phone does not respond. Maybe another software is blocking the port.")
            return False

        write_handle.close()
        if efserr == False:
            print("Successfully read EFS.")
            return True
        else:
            print("Error on reading EFS.")
            return False

    def send_cmd(self, cmd):
        cmdtosend = unhexlify(cmd)
        reply = self.send(cmdtosend)
        if reply[0] != cmdtosend[0]:
            print(self.decodestatus(reply))
        result = self.prettyprint(reply)
        return result

    def efsdiagerror(self, errcode):
        if errcode == 0x40000001:
            print("Inconsistent state.")
        elif errcode == 0x40000002:
            print("Invalid seq no.")
        elif errcode == 0x40000003:
            print("Directory not open.")
        elif errcode == 0x40000004:
            print("Directory entry not found.")
        elif errcode == 0x40000005:
            print("Invalid path.")
        elif errcode == 0x40000006:
            print("Path too long")
        elif errcode == 0x40000007:
            print("Too many open directories.")
        elif errcode == 0x40000008:
            print("Invalid directory entry.")
        elif errcode == 0x40000009:
            print("Too many open files.")
        elif errcode == 0x4000000a:
            print("Unknown filetype")
        elif errcode == 0x4000000b:
            print("Not nand falsh")
        elif errcode == 0x4000000c:
            print("Unavailable info")
        else:
            return 0
        return -1

    def efs_closedir(self, efsmethod, dirp):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_CLOSEDIR.value, 0x00)  # list efs dir
        buf += pack("<I", dirp)
        resp = self.send(buf)
        diagerror = unpack("<I", resp[0x4:0x8])[0]
        return self.efsdiagerror(diagerror)

    def efs_opendir(self, efsmethod, path):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_OPENDIR.value, 0x00)  # open efs dir
        buf += bytes(path, "utf-8") + b"\x00"
        resp = self.send(buf)
        if resp[0] != diag_cmds.DIAG_BAD_SEC_MODE_F.value and resp[0] != diag_cmds.DIAG_BAD_LEN_F.value:
            dirp = unpack("<I", resp[0x4:0x8])[0]
            diagerror = unpack("<I", resp[0x8:0xC])[0]
            if self.efsdiagerror(diagerror) != 0:
                return -1
            return dirp

    def efslistdir(self, path):
        alternateefs = b"\x4B\x3E\x00\x00" + b"\x00" * 0x28
        standardefs = b"\x4B\x13\x00\x00" + b"\x00" * 0x28
        resp = self.send(alternateefs)
        if resp[0] == 0x4B:
            efsmethod = 0x3E
        else:
            resp = self.send(standardefs)
            if resp[0] == 0x4B:
                efsmethod = 0x13
            else:
                print("No known efs method detected for reading.")
                return

        dirp = self.efs_opendir(efsmethod, path)
        if dirp == -1:
            return

        info = ""
        for seqno in range(1, 0xFFFFFFFF):
            buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_READDIR.value, 0x00)  # list efs dir
            buf += pack("<II", dirp, seqno)
            resp = self.send(buf)
            if len(resp) > 0:
                [dirp, seqno, diag_errno, entry_type, mode, size, atime, mtime, ctime] = unpack("<Iiiiiiiii",
                                                                                                resp[4:4 + (9 * 4)])
                if entry_type==1:
                    entry_name = resp[4 + (9 * 4):-1]
                    info += f"\"{path}{entry_name.decode('utf-8')}\" mode:{hex(mode)}, size:{hex(size)}, atime:{hex(atime)}, mtime:{hex(mtime)}, ctime:{hex(ctime)}\n"
                elif entry_type==0:
                    break
        if self.efs_closedir(efsmethod, dirp) == 0:
            print("Successfully listed directory")
        else:
            print("Error on listing directory")
        return info

    def efs_open(self, efsmethod, oflag, mode, path):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_OPEN.value, 0x00)  # open efs dir
        buf += pack("<II", oflag, mode)
        buf += bytes(path, "utf-8") + b"\x00"
        resp = self.send(buf)
        if resp[0] != diag_cmds.DIAG_BAD_SEC_MODE_F.value and resp[0] != diag_cmds.DIAG_BAD_LEN_F.value:
            fdata = unpack("<i", resp[0x4:0x8])[0]
            diagerror = unpack("<I", resp[0x8:0xC])[0]
            if self.efsdiagerror(diagerror) != 0:
                return -1
            return fdata

    def efs_close(self, efsmethod, fdata):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_CLOSE.value, 0x00)  # list efs dir
        buf += pack("<i", fdata)
        resp = self.send(buf)
        diag_error = unpack("<I", resp[0x4:0x8])[0]
        return self.efsdiagerror(diag_error)

    def efs_stat(self, efsmethod, path):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_STAT.value, 0x00)  # open efs file
        buf += bytes(path, "utf-8") + b"\x00"
        resp = self.send(buf)
        if resp[0] != diag_cmds.DIAG_BAD_SEC_MODE_F.value and resp[0] != diag_cmds.DIAG_BAD_LEN_F.value:
            diag_error = unpack("<I", resp[0x4:0x8])[0]
            mode = unpack("<I", resp[0x8:0xC])[0]
            size = unpack("<I", resp[0xC:0x10])[0]
            nlink = unpack("<I", resp[0x10:0x14])[0]
            atime = unpack("<I", resp[0x14:0x18])[0]
            mtime = unpack("<I", resp[0x18:0x1C])[0]
            ctime = unpack("<I", resp[0x1C:0x20])[0]
            if self.efsdiagerror(diag_error) != 0:
                return -1
            return [mode, size, nlink, atime, mtime, ctime]

    def efs_fstat(self, efsmethod, fdata):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_FSTAT.value, 0x00)  # open efs file
        buf += pack("<I", fdata)
        resp = self.send(buf)
        if resp[0] != diag_cmds.DIAG_BAD_SEC_MODE_F.value and resp[0] != diag_cmds.DIAG_BAD_LEN_F.value:
            diag_error = unpack("<I", resp[0x4:0x8])[0]
            mode = unpack("<I", resp[0x8:0xC])[0]
            size = unpack("<I", resp[0xC:0x10])[0]
            nlink = unpack("<I", resp[0x10:0x14])[0]
            atime = unpack("<I", resp[0x14:0x18])[0]
            mtime = unpack("<I", resp[0x18:0x1C])[0]
            ctime = unpack("<I", resp[0x1C:0x20])[0]
            if self.efsdiagerror(diag_error) != 0:
                return -1
            return [mode, size, nlink, atime, mtime, ctime]

    def efs_lstat(self, efsmethod, path):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_LSTAT.value, 0x00)  # open efs file
        buf += bytes(path, "utf-8") + b"\x00"
        resp = self.send(buf)
        if resp[0] != diag_cmds.DIAG_BAD_SEC_MODE_F.value and resp[0] != diag_cmds.DIAG_BAD_LEN_F.value:
            diag_error = unpack("<I", resp[0x4:0x8])[0]
            mode = unpack("<I", resp[0x8:0xC])[0]
            atime = unpack("<I", resp[0xC:0x10])[0]
            mtime = unpack("<I", resp[0x10:0x14])[0]
            ctime = unpack("<I", resp[0x14:0x18])[0]
            if self.efsdiagerror(diag_error) != 0:
                return -1
            return [mode, atime, mtime, ctime]

    def efs_get(self, efsmethod, path, data_length, sequence_number):
        path_length = len(path) + 1
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_GET.value, 0x00)  # open efs file
        buf += pack("<IIH", data_length, path_length, sequence_number)
        buf += bytes(path, "utf-8") + b"\x00"
        resp = self.send(buf)
        if resp[0] != diag_cmds.DIAG_BAD_SEC_MODE_F.value and resp[0] != diag_cmds.DIAG_BAD_LEN_F.value:
            num_bytes = unpack("<I", resp[0x4:0x8])[0]
            diag_error = unpack("<I", resp[0x8:0xC])[0]
            seq_no = unpack("<H", resp[0xC:0xE])[0]
            data = resp[0xE:]
            if self.efsdiagerror(diag_error) != 0:
                return -1
            return [num_bytes, seq_no, data]

    def efs_write(self, efsmethod, fdata, offset, data):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_WRITE.value, 0x00)  # open efs file
        buf += pack("<II", fdata, offset)
        buf += data
        resp = self.send(buf)
        if resp[0] != diag_cmds.DIAG_BAD_SEC_MODE_F.value and resp[0] != diag_cmds.DIAG_BAD_LEN_F.value:
            fdata = unpack("<i", resp[0x4:0x8])[0]
            offset = unpack("<I", resp[0x8:0xC])[0]
            bytes_written = unpack("<I", resp[0xC:0x10])[0]
            diag_error = unpack("<I", resp[0x10:0x14])[0]
            if self.efsdiagerror(diag_error) != 0:
                return -1
            return [fdata, offset, bytes_written]

    def handle_error(self, resp):
        if resp[0] != diag_cmds.DIAG_BAD_SEC_MODE_F.value and resp[0] != diag_cmds.DIAG_BAD_LEN_F.value:
            diagerror = unpack("<I", resp[0x4:0x8])[0]
            if self.efsdiagerror(diagerror) != 0:
                return -1
            return 0

    def efs_rmdir(self, efsmethod, path):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_RMDIR.value, 0x00)  # open efs file
        buf += bytes(path, "utf-8") + b"\x00"
        resp = self.send(buf)
        return self.handle_error(resp)

    def efs_unlink(self, efsmethod, path):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_UNLINK.value, 0x00)  # open efs file
        buf += bytes(path, "utf-8") + b"\x00"
        resp = self.send(buf)
        return self.handle_error(resp)

    def efs_chown(self, efsmethod, uid_val, gid_val, path):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_CHOWN.value, 0x00)  # open efs file
        buf += pack("<ii", uid_val, gid_val)
        buf += bytes(path, "utf-8") + b"\x00"
        resp = self.send(buf)
        return self.handle_error(resp)

    def efs_chmod(self, efsmethod, mode, path):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_CHMOD.value, 0x00)  # open efs file
        buf += pack("<H", mode)
        buf += bytes(path, "utf-8") + b"\x00"
        resp = self.send(buf)
        return self.handle_error(resp)

    def efs_mkdir(self, efsmethod, mode, path):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_MKDIR.value, 0x00)  # open efs file
        buf += pack("<H", mode)
        buf += bytes(path, "utf-8") + b"\x00"
        resp = self.send(buf)
        return self.handle_error(resp)

    def efs_read(self, efsmethod, fdata, nbytes, offset):
        buf = pack("<BBBB", 0x4B, efsmethod, efs_cmds.EFS2_DIAG_WRITE.value, 0x00)  # open efs file
        buf += pack("<III", fdata, nbytes, offset)
        resp = self.send(buf)
        if resp[0] != diag_cmds.DIAG_BAD_SEC_MODE_F.value and resp[0] != diag_cmds.DIAG_BAD_LEN_F.value:
            fdata = unpack("<i", resp[0x4:0x8])[0]
            offset = unpack("<I", resp[0x8:0xC])[0]
            bytes_read = unpack("<I", resp[0xC:0x10])[0]
            diag_error = unpack("<I", resp[0x10:0x14])[0]
            data = resp[0x14:]
            if self.efsdiagerror(diag_error) != 0:
                return -1
            return [fdata, offset, bytes_read, data]

    def efsreadfile(self, srcpath, dstpath):
        alternateefs = b"\x4B\x3E\x00\x00" + b"\x00" * 0x28
        standardefs = b"\x4B\x13\x00\x00" + b"\x00" * 0x28
        resp = self.send(alternateefs)
        if resp[0] == 0x4B:
            efsmethod = 0x3E
        else:
            resp = self.send(standardefs)
            if resp[0] == 0x4B:
                efsmethod = 0x13
            else:
                logging.error("No known efs method detected for reading.")
                return 0

        fdata = self.efs_open(efsmethod, O_RDONLY, 0, srcpath)
        if fdata == -1:
            return 0
        mode, size, nlink, atime, mtime, ctime = self.efs_fstat(efsmethod, fdata)
        if size == 0:
            self.efs_close(efsmethod, fdata)
            return 0
        acr = (mode & O_ACCMODE)
        if acr == O_WRONLY:
            logging.error("File can only be written. Aborting.")
            self.efs_close(efsmethod, fdata)
            return 0

        num_bytes = 0
        offset = 0
        fname = srcpath[srcpath.rfind("/") + 1:]
        fname = os.path.join(dstpath, fname)
        with open(fname, "wb") as write_handle:
            dataleft = size
            while dataleft > 0:
                rsize = dataleft
                if rsize > FS_DIAG_MAX_READ_REQ:
                    rsize = FS_DIAG_MAX_READ_REQ
                finfo = self.efs_read(efsmethod, fdata, rsize, offset)
                if finfo == -1:
                    break
                fdata, offset, bytes_read, data = finfo
                write_handle.write(data)
                offset += rsize
                dataleft -= rsize
        self.efs_close(efsmethod, fdata)
        return num_bytes

    def efswritefile(self, srcpath, dstpath):
        alternateefs = b"\x4B\x3E\x00\x00" + b"\x00" * 0x28
        standardefs = b"\x4B\x13\x00\x00" + b"\x00" * 0x28
        resp = self.send(alternateefs)
        if resp[0] == 0x4B:
            efsmethod = 0x3E
        else:
            resp = self.send(standardefs)
            if resp[0] == 0x4B:
                efsmethod = 0x13
            else:
                logging.error("No known efs method detected for reading.")
                return 0
        with open(srcpath, "rb") as rf:
            fdata = self.efs_open(efsmethod, O_RDONLY, 0, srcpath)
            if fdata == -1:
                return 0
            mode, size, nlink, atime, mtime, ctime = self.efs_fstat(efsmethod, fdata)
            if size == 0:
                self.efs_close(efsmethod, fdata)
                return 0
            """
            acr=(mode & O_ACCMODE)
            if acr==O_RDONLY:
                print("File can only be read. Aborting.")
                self.efs_close(efsmethod, fdata)
                return
            """
            num_bytes = 0
            offset = 0
            size = os.fstat(srcpath).st_size
            dataleft = size
            while dataleft > 0:
                rsize = dataleft
                if rsize > FS_DIAG_MAX_READ_REQ:
                    rsize = FS_DIAG_MAX_READ_REQ
                data = rf.read(rsize)
                finfo = self.efs_write(efsmethod, fdata, offset, data)
                if finfo == -1:
                    break
                fdata, offset, bytes_written = finfo
                offset += rsize
                dataleft -= rsize
            self.efs_close(efsmethod, fdata)
        return num_bytes


class DiagTools(metaclass=LogBase):
    def run(self, args):
        self.interface = -1
        self.vid = None
        self.pid = None

        if args.vid != "":
            self.vid = int(args.vid, 16)
        if args.pid != "":
            self.pid = int(args.pid, 16)
        if args.interface != "":
            self.interface = int(args.interface, 16)

        logfilename = "diag.txt"
        if args.debugmode:
            if os.path.exists(logfilename):
                os.remove(logfilename)
            fh = logging.FileHandler(logfilename)
            self.__logger.addHandler(fh)
            self.__logger.setLevel(logging.DEBUG)
        else:
            self.__logger.setLevel(logging.INFO)

        connected = False
        diag = None
        if self.vid is None or self.pid is None:
            diag = qcdiag(loglevel=self.__logger.level, portconfig=default_diag_vid_pid)
            connected = diag.connect()
        else:
            diag = qcdiag(loglevel=self.__logger.level, portconfig=[[self.vid, self.pid, self.interface]])
            connected = diag.connect()
        if connected:
            cmd = args.cmd
            if cmd=="sp":
                diag.send_sp(args.spval)
            elif cmd=="spc":
                diag.send_spc(args.spcval)
            elif cmd=="cmd":
                if args.cmdval=="":
                    print("cmd needed as hex string, example: 00")
                else:
                    print(diag.send_cmd(args.cmdval))
            elif cmd=="info":
                print(diag.cmd_info())
            elif cmd=="download":
                diag.enter_downloadmode()
            elif cmd=="sahara":
                diag.enter_saharamode()
            elif cmd=="crash":
                diag.enforce_crash()
            elif cmd=="efslistdir":
                print(diag.efslistdir(args.path))
            elif cmd=="efsreadfile":
                if args.src=="" or args.dst=="":
                    print("Usage: -efsreadfile -src srcfile -dst dstfile")
                    sys.exit()
                print(diag.efsreadfile(args.src,args.dst))
            elif cmd=="nvread":
                if "0x" in args.nvitem:
                    nvitem = int(args.nvitem, 16)
                else:
                    nvitem = int(args.nvitem)
                diag.print_nvitem(nvitem)
            elif cmd=="nvreadsub":
                if args.nvitem is None or args.nvindex is None:
                    print("Usage: nvreadsub [nvitem] [nvindex]")
                    exit(1)
                nv = args.nvreadsub.split(",")
                if "0x" in args.nvitem:
                    nvitem = int(args.nvitem, 16)
                else:
                    nvitem = int(args.nvitem)
                if "0x" in nv[1]:
                    nvindex = int(args.nvindex, 16)
                else:
                    nvindex = int(args.nvindex)
                diag.print_nvitemsub(nvitem,nvindex)
            elif cmd=="nvwrite":
                if args.data is None:
                    print("NvWrite requires data to write")
                    sys.exit()
                if "0x" in args.nvitem:
                    nvitem = int(args.nvitem, 16)
                else:
                    nvitem = int(args.nvitem)
                data = unhexlify(args.data)
                diag.write_nvitem(nvitem, data)
            elif cmd=="nvwritesub":
                if args.nvitem is None or args.nvindex is None or args.data is None:
                    print("NvWriteSub requires item, index and data to write")
                    sys.exit()
                if "0x" in args.nvitem:
                    nvitem = int(args.nvitem, 16)
                else:
                    nvitem = int(args.nvitem)
                if "0x" in args.nvindex:
                    nvindex = int(args.nvindex, 16)
                else:
                    nvindex = int(args.nvindex)
                data = unhexlify(args.data)
                diag.write_nvitemsub(nvitem, nvindex, data)
            elif cmd=="nvbackup":
                diag.backup_nvitems(args.filename, "error.log")
            elif cmd=="writeimei":
                diag.write_imei(args.imei)
            elif cmd=="efsread":
                diag.efsread(args.filename)
            else:
                print("A command is required. Use -cmd \"data\" for sending requests.")
                print()
                print("Valid commands are:")
                print("-------------------")
                print("info cmd sp spc nvread nvreadsub" +
                " nvwrite writeimei nvwritesub nvbackup efsread efsreadfile" +
                " efslistdir download sahara crash")
                print()
            diag.disconnect()
            sys.exit()
        else:
            print("No diag device detected. Use -pid and -vid options. See -h for help.")
            diag.disconnect()
            sys.exit()


def main():
    info = "Qualcomm Diag Client (c) B.Kerler 2019-2021."
    parser = argparse.ArgumentParser(description=info)
    print("\n" + info + "\n---------------------------------------\n")
    parser.add_argument("-vid", metavar="<vid>", help="[Option] Specify vid", default="")
    parser.add_argument("-pid", metavar="<pid>", help="[Option] Specify pid", default="")
    parser.add_argument("-interface", metavar="<pid>", help="[Option] Specify interface number, default=0)",
                        default="0")
    parser.add_argument("--debugmode", help="[Option] Enable verbose logging", action="store_true")

    subparser = parser.add_subparsers(dest="cmd", help="Valid commands are:\ninfo cmd sp spc nvread nvreadsub" +
                                                        " nvwrite writeimei nvwritesub nvbackup efsread efsreadfile\n" +
                                                        " efslistdir download sahara crash")

    parser_info = subparser.add_parser("info", help="[Option] Get diag info")

    parser_cmd = subparser.add_parser("cmd", help="Send command")
    parser_cmd.add_argument("cmdval", help="cmd to send (hexstring), default: 00",
                           default="", const="00", nargs="?")

    parser_sp = subparser.add_parser("sp", help="Send Security password")
    parser_sp.add_argument("spval", help="Security password to send, default: FFFFFFFFFFFFFFFE",
                        default="FFFFFFFFFFFFFFFE", nargs="?")

    parser_spc = subparser.add_parser("spc", help="Send Security Code")
    parser_spc.add_argument("spcval", help="Security code to send, default: 303030303030",
                        default="303030303030", nargs="?")

    parser_nvread = subparser.add_parser("nvread", help="Read nvitem")
    parser_nvread.add_argument("nvitem", help="[Option] NVItem to read", default="")

    parser_nvreadsub = subparser.add_parser("nvreadsub", help="Read nvitem using subsystem")
    parser_nvreadsub.add_argument("nvitem", help="[Option] NVItem to read", default="")
    parser_nvreadsub.add_argument("nvindex", help="[Option] Index to read", default="")

    parser_nvwrite = subparser.add_parser("nvwrite", help="Write nvitem")
    parser_nvwrite.add_argument("nvitem", help="[Option] NVItem to write", default="")
    parser_nvwrite.add_argument("data", help="[Option] Data to write", default="")

    parser_nvwritesub = subparser.add_parser("nvwritesub", help="Write nvitem using subsystem")
    parser_nvwritesub.add_argument("nvitem", help="[Option] NVItem to read", default="")
    parser_nvwritesub.add_argument("nvindex", help="[Option] Index to read", default="")
    parser_nvwritesub.add_argument("data", help="[Option] Data to write", default="")

    parser_writeimei = subparser.add_parser("writeimei", help="Write imei")
    parser_writeimei.add_argument("imei", metavar=("<imei1,imei2,...>"), help="[Option] IMEI to write", default="")


    parser_nvbackup = subparser.add_parser("nvbackup", help="Make nvitem backup as json")
    parser_nvbackup.add_argument("filename", help="[Option] Filename to write to", default="")

    parser_efsread = subparser.add_parser("efsread", help="Read efs")
    parser_efsread.add_argument("filename", help="[Option] Filename to write to", default="")

    parser_efsreadfile = subparser.add_parser("efsreadfile", help="Read efs file")
    parser_efsreadfile.add_argument("src", help="[Option] Source filename", default="")
    parser_efsreadfile.add_argument("dst", help="[Option] Destination filename", default="")

    parser_efslistdir = subparser.add_parser("efslistdir", help="List efs directory")
    parser_efslistdir.add_argument("path", help="[Option] Path to list", default="")

    parser_download = subparser.add_parser("download", help="[Option] Switch to sahara mode")

    parser_sahara = subparser.add_parser("sahara", help="[Option] Switch to sahara mode")

    parser_crash = subparser.add_parser("crash", help="[Option] Enforce crash")


    args = parser.parse_args()
    dg = DiagTools()
    dg.run(args)


if __name__ == "__main__":
    main()