The patch teaches packet library to truncate padding octets.
Change packet_base.parser() to return (header, next_type, rest_of_packet)
The protocol class that knows its payload length should rest_of_packet
where padding octets at the last of packet is truncated.
As bonus,
- fix ipv6 parser as ipv6 header doesn't have options.
It seems copy-and-paste from ipv4
- improve ipv4, tcp a bit
Cc: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Cc: Shaun Crampton <Shaun.Crampton@metaswitch.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
- zfill() is a func of the string to be putting in a '0'.
bytearray().zfill(n) -> bytearray(n)
- unify notation of zero with other code.
'\0' -> '\x00'
Signed-off-by: HIYAMA Manabu <hiyama.manabu@po.ntts.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
All protocols need to check if the data length is long enough so let's
set the minimum length in the same way.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
