I'm resending the patches which appease pep8
fletcher checksum function for OSPF LSA checksum.
refer to RFC1008.
Signed-off-by: Wataru ISHIDA <ishida.wataru@lab.ntt.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
for example:
>>> from ryu.lib.packet.ipv4 import ipv4
>>> o = ipv4(src='127.0.0.1')
>>> o.src
'127.0.0.1'
>>>
i left lldp TLVs as they seem to be treated opaque.
for now, i don't change mac.DONTCARE and mac.BROADCAST because
they are used by the ofproto world as well.
Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
change ipv4 representation from int to bytes in many places.
replace homegrown bin<->text routines with addrconv for ipv4.
Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
builtin function, sum, is much faster than for loop.
The result on my machine is as follows
> def main():
> from timeit import timeit
> data = bytearray().zfill(1500)
> print 'new=', timeit(lambda : checksum(data), number=1000)
> print 'old=', timeit(lambda : checksum_old(data), number=1000)
>
> new= 0.00800108909607
> old= 0.266770124435
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
