我正在为python创建ICMP Pinger类,但是每当我运行此代码时,我都会不断收到相同的错误消息。我查了一下,我知道它可能是由于没有SUDO访问权限引起的,但是尝试以sudo python ICMPPinger.py在终端中运行它,但仍然出现了相同的错误。任何帮助表示赞赏。
ICMPPing.py:
ICMP_ECHO_REQUEST = 8 # ICMP type code for echo request messages
ICMP_ECHO_REPLY = 0 # ICMP type code for echo reply messages
timeRTT = []
packageSent = 0
packageRev = 0
def checksum(string):
csum = 0
countTo = (len(string) // 2) * 2
count = 0
while count < countTo:
thisVal = ord(string[count + 1]) * 256 + ord(string[count])
csum = csum + thisVal
csum = csum & 0xffffffff
count = count + 2
if countTo < len(string):
csum = csum + ord(string[len(string) - 1])
csum = csum & 0xffffffff
csum = (csum >> 16) + (csum & 0xffff)
csum = csum + (csum >> 16)
answer = ~csum
answer = answer & 0xffff
answer = answer >> 8 | (answer << 8 & 0xff00)
if sys.platform == 'darwin':
answer = socket.htons(answer) & 0xffff
else:
answer = socket.htons(answer)
return answer
def receiveOnePing(icmpSocket, destinationAddress, ID, timeout):
global packageRev, timeRTT
timeLeft = timeout
while 1:
startedSelect = time.time()
whatReady = select.select([icmpSocket], [], [], timeLeft)
howLongInSelect = (time.time() - startedSelect)
if whatReady[0] == []: # Timeout
return "0: Destination Network Unreachable,"
timeReceived = time.time()
recPacket, addr = icmpSocket.recvfrom(1024)
icmpHeader = recPacket[20:28]
requestType, code, revChecksum, revId, revSequence = struct.unpack('bbHHh', icmpHeader)
if ID == revId:
bytesInDouble = struct.calcsize('d')
timeData = struct.unpack('d', recPacket[28:28 + bytesInDouble])[0]
timeRTT.append(timeReceived - timeData)
packageRev += 1
return timeReceived - timeData
else:
return "ID is not the same!"
timeLeft = timeLeft - howLongInSelect
# Fill in end
if timeLeft <= 0:
return "1: Destination Host Unreachable."
def sendOnePing(icmpSocket, destinationAddress, ID):
global packageSent
# Header is type (8), code (8), checksum (16), id (16), sequence (16)
myChecksum = 0
# Make a dummy header with a 0 checksum.
# struct -- Interpret strings as packed binary data
header = struct.pack("bbHHh", ICMP_ECHO_REQUEST, 0, myChecksum, ID, 1)
data = struct.pack("d", time.time())
# Calculate the checksum on the data and the dummy header.
myChecksum = checksum(header + data)
# Get the right checksum, and put in the header
if sys.platform == 'darwin':
myChecksum = socket.htons(myChecksum) & 0xffff
# Convert 16-bit integers from host to network byte order.
else:
myChecksum = socket.htons(myChecksum)
header = struct.pack("bbHHh", ICMP_ECHO_REQUEST, 0, myChecksum, ID, 1)
packet = header + data
icmpSocket.sendto(packet, (destinationAddress, 1))
packageSent += 1
# pass # Remove/replace when function is complete
def doOnePing(destinationAddress, timeout):
icmp = socket.getprotobyname("icmp")
try:
mySocket = socket.socket(socket.AF_INET, socket.SOCK_RAW, icmp)
except socket.error, (errno, msg):
if errno == 1:
raise socket.error(msg)
# Fill in end
myID = os.getpid() & 0xFFFF # Return the current process i
sendOnePing(mySocket, destinationAddress, myID)
delay = receiveOnePing(mySocket, myID, timeout, destinationAddress)
mySocket.close()
return delay
def ping(host, timeout=1):
# timeout=1 means: If one second goes by without a reply from the server,
dest = socket.gethostbyname(host)
print "Pinging " + dest + " using Python:"
print ""
# Send ping requests to a server separated by approximately one second
while 1:
delay = doOnePing(dest, timeout)
print "RTT:", delay
print "maxRTT:", (max(timeRTT) if len(timeRTT) > 0 else 0), "\tminRTT:", (
min(timeRTT) if len(timeRTT) > 0 else 0), "\naverageRTT:", float(
sum(timeRTT) / len(timeRTT) if len(timeRTT) > 0 else float("nan"))
print "Package Lose Rate:", ((packageSent - packageRev) / packageSent if packageRev > 0 else 0)
time.sleep(1) # one second
return delay
ping("google.com")
错误消息:
回溯(最近通话最近):文件 “ /用户/jonathanthomann/PycharmProjects/ICMPPing/ICMPPing.py”,第 133,在 ping(“ google.com”)文件“ /Users/jonathanthomann/PycharmProjects/ICMPPing/ICMPPing.py”,行 123,在ping 延迟= doOnePing(目的地,超时)文件“ /Users/jonathanthomann/PycharmProjects/ICMPPing/ICMPPing.py”,行 106,在doOnePing中 引发socket.error(msg)socket.error:不允许操作