[ovs-git] Open vSwitch: meta-flow: Don't allow negative port numbers. (branch-1.8)

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commit ffdf1ea0ffbcc4a87279f71b27320a3b154ccb56
Diffs: http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=commitdiff;h=ffdf1ea0ffbcc4a87279f71b27320a3b154ccb56
Author: Justin Pettit <jpettit at nicira.com>
		
meta-flow: Don't allow negative port numbers.
		
If a negative number is supplied, the parsing code used to convert it
into a signed one.  We ran into an incident where a third-party script
was attempting to get the OpenFlow port number for an interface, but got
-1 from the database, since the number had not yet been assigned.  This
was converted to 65535, which maps to OFPP_NONE and all flows with
ingress port OFPP_NONE were modified.  This commit disallows negative
port numbers to help prevent broken integration scripts from disturbing
the flow table.

Issue #14036

Signed-off-by: Justin Pettit <jpettit at nicira.com>


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Summary of changes:
 lib/meta-flow.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)


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