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Ran 08 Oct 2016 02:27PM UTC

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Committed 08 Oct 2016 01:52PM UTC coverage: 65.101%. Remained the same

Job # TOX_ENV=py35

Build Type

push

travis-ci

Committed by

fujita

Commit Message

ryu/lib/ofctl_v1_3: port name decoding fix

The patch resolves issue experienced when decoding certain values of
name field in OFPMP_PORT_DESCRIPTION body. Non-decodable bytes are
replaced with utf-8 replacement character.

This issue was observed while retrieving OFPMP_PORT_DESC reply from
OpenFlow 1.3 compliant HP switch. One of ofp_struct structures
describing OFPP_LOCAL port has a name field with value 4f 46 50 50 5f 4c
4f 43 41 4c 00 81 ff ff ff ff that translates to OFPP_LOCAL.......
Attempt to decode the value, as in modified line, raises an exception
"UnicodeDecodeError: 'utf8' codec can't decode byte 0x81 in position 11:
invalid start byte". In the submitted patch, non-decodable characters
are replaced with utf-8 REPLACEMENT CHARACTER (U+FFFD), which is
sufficient for the get_port_desc method to work seamlessly. Similar
usages of str.decode method may be found in ofctl_v1_3, ofctl_v1_4,
ofctl_v1_5 and need to be fixed in the future.

Signed-off-by: Michal Rzepka <mrzepka@student.agh.edu.pl>
Reviewed-by: Iwase Yusuke <iwase.yusuke0@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>

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