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Feature #8754.
Signed-off-by: Arun Sharma <arun.sharma@calsoftinc.com>
[blp@nicira.com rewrote most of the code]
Signed-off-by: Ben Pfaff <blp@nicira.com>
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OpenFlow actions have always been somewhat awkward to handle.
Moreover, over time we've started creating actions that require more
complicated parsing. When we maintain those actions internally in
their wire format, we end up parsing them multiple times, whenever
we have to look at the set of actions.
When we add support for OpenFlow 1.1 or later protocols, the situation
will get worse, because these newer protocols support many of the same
actions but with different representations. It becomes unrealistic to
handle each protocol in its wire format.
This commit adopts a new strategy, by converting OpenFlow actions into
an internal form from the wire format when they are read, and converting
them back to the wire format when flows are dumped. I believe that this
will be more maintainable over time.
Thanks to Simon Horman and Pravin Shelar for reviews.
Signed-off-by: Ben Pfaff <blp@nicira.com>
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This better fits our general policy of adding a version number suffix
to structures and constants whose values differ from one OpenFlow
version to the next.
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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Replaced all instances of Nicira Networks(, Inc) to Nicira, Inc.
Feature #10593
Signed-off-by: Raju Subramanian <rsubramanian@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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ofputil_msg_type_name() is a better interface.
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
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ofp_print_packet() and ofp_packet_to_string() don't use the
'total_len' argument which they require callers to supply.
Signed-off-by: Ethan Jackson <ethan@nicira.com>
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The existing actions_first() and actions_next() iterator functions are not
much like the other iteration constructs found throughout the Open vSwitch
tree. Also, they only work with actions that have already been validated,
so there are cases where they cannot be used.
This commit adds new macros for iterating through OpenFlow actions, one
for actions that have been validated and one for actions that have not, and
adapts the existing users. The following commit will further refine action
parsing and add more users.
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Previously, the only way to query the flow table was to run "ovs-ofctl
dump-flows". This returned most flows, but not those marked hidden by
secchan. Hidden flows are setup by mechanisms such as in-band control,
since they must not be modified by users of the controller. However,
when debugging problems on the switch, it is often useful to see what
the flow table is actually doing. The new "bridge/dump-flows" command
added to ovs-appctl shows all flows being used by the OpenFlow stack.
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