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How to use update_checksum method in autotest

Best Python code snippet using autotest_python

packet.py

Source:packet.py

...51        self.fragmentation_word = (dont_fragment << 14)52        self.time_to_live = 25553        self.protocol = PROTOCOL_NUMBER54        self.payload = None55        self.update_checksum()56        57    def get_source_ip(self):58        return self.source_ip59    60    def get_destination_ip(self):61        return self.destination_ip    62    63    def get_version(self):64        return self.version65    66    def get_header_length(self):67        return self.header_length68    69    def get_type_of_service(self):70        return self.type_of_service71    72    def get_total_length(self):73        return self.total_length74    75    def get_id_number(self):76        return self.id_number77    78    def get_time_to_live(self):79        return self.time_to_live80    81    def get_protocol(self):82        return self.protocol83    84    def get_checksum(self):85        return self.checksum86    87    def get_fragmentation_word(self):88        return self.fragmentation_word89    90    def get_payload(self):91        return self.payload92    93    def set_source_ip(self, ip):94        self.source_ip = ip95        self.update_checksum()96        97    def set_destination_ip(self, ip):98        self.destination_ip = ip99        self.update_checksum()100    101    def set_version(self, version):102        self.version = version103        self.update_checksum()104    105    def set_header_length(self, length):106        self.header_length = length107        self.update_checksum()108    109    def set_type_of_service(self, type_of_service):110        self.type_of_service = type_of_service111        self.update_checksum()112    113    def add_length(self, length):114        self.total_length += length115        self.update_checksum()116    117    def set_id_number(self, id_number):118        self.id_number = id_number119        self.update_checksum()120    121    def set_time_to_live(self, time_to_live):122        self.time_to_live = time_to_live123        self.update_checksum()124    125    def set_protocol(self, protocol):126        self.protocol = protocol127        self.update_checksum()128    129    def set_fragmentation_word(self, fragmentation_word):130        self.fragmentation_word = fragmentation_word131        self.update_checksum()132        133    def set_payload(self, payload):134        self.payload = payload135        length = len(payload.get_bytes())136        self.add_length(length)137        self.payload.set_parent(self)138    139    def update_checksum(self):140        self.checksum = 0141        header_bytes = self.get_bytes()142        updated_checksum = IPChecksumAlgorithm.for_bytes(header_bytes).value()143        self.checksum = updated_checksum144        145    def get_bytes(self):146        source_ip = socket.inet_aton(self.source_ip)147        destination_ip = socket.inet_aton(self.destination_ip)        148        header_length_plus_version = (self.version << 4) + self.header_length149        payload_bytes = str()150        if self.payload is not None:151            payload_bytes = self.payload.get_bytes()152        header_bytes = struct.pack('!BBHHHBBH4s4s', header_length_plus_version,153                            self.type_of_service, self.total_length,...

show-prop-content-checksums.py

Source:show-prop-content-checksums.py

1#!/usr/bin/env python2import hashlib3import sys4import MySQLdb5import MySQLdb.cursors6import config7import logging8from hpw.models import property9#from model import *10import property_content11def main():12    try:13        # connect to the mysql db14        logging.info("Opening MySQL DB connection")15        conn = MySQLdb.connect (16            host   = config.dbhost,17            user   = config.dbuser,18            passwd = config.dbpass,19            db     = config.dbname,20            cursorclass = MySQLdb.cursors.DictCursor21        )22        cursor = conn.cursor()23    except MySQLdb.Error, e:24        print "Error %d: %s" % (e.args[0], e.args[1])25        sys.exit(1)26    id_prop = sys.argv[1]27    rows_master = property.get_property_content_by_property_id(cursor, id_prop, 1)28    rows_update = property.get_property_content_by_property_id(cursor, id_prop, 2)29    master_total_cs = ''30    update_total_cs = ''31    for master_item in rows_master:32        id_prop_content_field = master_item['idPropertyContentField']33        # get the update row matching this one34        update_item = rows_update[id_prop_content_field-1]35        master_checksum = master_item['cs']36        update_checksum = update_item['cs']37        master_total_cs += master_checksum38        update_total_cs += update_checksum39        if master_checksum == None:40            master_checksum = 'null'41        if update_checksum == None:42            update_checksum = 'null'43        print str(id_prop_content_field).ljust(4), property_content.lookup[id_prop_content_field-1].ljust(18), master_checksum[:6].ljust(8), update_checksum[:6].ljust(8), 'Match' if master_checksum == update_checksum else 'Changed'44    print "Property Master Checksum should be", hashlib.sha1(master_total_cs).hexdigest()45    print "Property Master Checksum should be", hashlib.sha1(update_total_cs).hexdigest()46    cursor.close()47    conn.commit()48    conn.close()49if __name__ == '__main__':...

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