def _validateMailbox(self, mailbox, mailboxIndex):
chkStart = MAILBOX_SIZE-CHECKSUM_BYTES
chk = misc.checksum(mailbox[0 : chkStart], CHECKSUM_BYTES)
pChk = struct.pack('<l',chk) # Assumes CHECKSUM_BYTES equals 4!!!
if pChk != mailbox[chkStart : chkStart+CHECKSUM_BYTES]:
self.log.error("SPM_MailMonitor: mailbox %s checksum failed, not clearing mailbox, clearing newMail.", str(mailboxIndex))
return False
elif pChk == pZeroChecksum: return False # Ignore messages of empty mailbox
return True
def _sendMail(self):
self.log.info("HSM_MailMonitor sending mail to SPM - " +
str(self._outCmd))
chk = misc.checksum(
self._outgoingMail[0:MAILBOX_SIZE - CHECKSUM_BYTES],
CHECKSUM_BYTES)
pChk = struct.pack('<l', chk) # Assumes CHECKSUM_BYTES equals 4!!!
self._outgoingMail = \
self._outgoingMail[0:MAILBOX_SIZE - CHECKSUM_BYTES] + pChk
_mboxExecCmd(self._outCmd, data=self._outgoingMail)
def _sendMail(self):
self.log.info("HSM_MailMonitor sending mail to SPM - " +
str(self._outCmd))
chk = misc.checksum(
self._outgoingMail[0:MAILBOX_SIZE - CHECKSUM_BYTES],
CHECKSUM_BYTES)
pChk = struct.pack('<l', chk) # Assumes CHECKSUM_BYTES equals 4!!!
self._outgoingMail = \
self._outgoingMail[0:MAILBOX_SIZE - CHECKSUM_BYTES] + pChk
_mboxExecCmd(self._outCmd, data=self._outgoingMail)
def _validateMailbox(self, mailbox, mailboxIndex):
chkStart = MAILBOX_SIZE - CHECKSUM_BYTES
chk = misc.checksum(mailbox[0:chkStart], CHECKSUM_BYTES)
pChk = struct.pack('<l', chk) # Assumes CHECKSUM_BYTES equals 4!!!
if pChk != mailbox[chkStart:chkStart + CHECKSUM_BYTES]:
self.log.error(
"SPM_MailMonitor: mailbox %s checksum failed, not "
"clearing mailbox, clearing newMail.", str(mailboxIndex))
return False
elif pChk == pZeroChecksum:
return False # Ignore messages of empty mailbox
return True
MAILBOX_SIZE = 4096
PACKED_UUID_SIZE = 16
VOLUME_MAX_SIZE = 0xFFFFFFFF # 64 bit unsigned max size
SIZE_CHARS = 16
MESSAGE_VERSION = "1"
MESSAGE_SIZE = 64
CLEAN_MESSAGE = "\1" * MESSAGE_SIZE
EXTEND_CODE = "xtnd"
BLOCK_SIZE = 512
REPLY_OK = 1
EMPTYMAILBOX = MAILBOX_SIZE * "\0"
BLOCKS_PER_MAILBOX = int(MAILBOX_SIZE/BLOCK_SIZE)
SLOTS_PER_MAILBOX = int(MAILBOX_SIZE / MESSAGE_SIZE)
MESSAGES_PER_MAILBOX = SLOTS_PER_MAILBOX - 1 # Last message slot is reserved for metadata (checksum, extendable mailbox, etc)
_zeroCheck = misc.checksum(EMPTYMAILBOX, CHECKSUM_BYTES)
pZeroChecksum = struct.pack('<l',_zeroCheck) # Assumes CHECKSUM_BYTES equals 4!!!
def dec2hex(n):
return "%x" % n
def runTask(args):
if type(args) == tuple:
cmd = args[0]
args = args[1:]
else:
cmd = args
args = None
ctask = task.Task(id=None, name=cmd)
vars.task = ctask
VOLUME_MAX_SIZE = 0xFFFFFFFF # 64 bit unsigned max size
SIZE_CHARS = 16
MESSAGE_VERSION = "1"
MESSAGE_SIZE = 64
CLEAN_MESSAGE = "\1" * MESSAGE_SIZE
EXTEND_CODE = "xtnd"
BLOCK_SIZE = 512
REPLY_OK = 1
EMPTYMAILBOX = MAILBOX_SIZE * "\0"
BLOCKS_PER_MAILBOX = int(MAILBOX_SIZE / BLOCK_SIZE)
SLOTS_PER_MAILBOX = int(MAILBOX_SIZE / MESSAGE_SIZE)
# Last message slot is reserved for metadata (checksum, extendable mailbox,
# etc)
MESSAGES_PER_MAILBOX = SLOTS_PER_MAILBOX - 1
_zeroCheck = misc.checksum(EMPTYMAILBOX, CHECKSUM_BYTES)
# Assumes CHECKSUM_BYTES equals 4!!!
pZeroChecksum = struct.pack('<l', _zeroCheck)
def dec2hex(n):
return "%x" % n
def runTask(args):
if type(args) == tuple:
cmd = args[0]
args = args[1:]
else:
cmd = args
args = None
