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It seems a useful abstraction for the purposes of writing
fine-grained tests, to be able to create a "connection" object
which would be bound to two VPP interfaces, and hold some
information about the state, allowing to send the packets
back and forth with minimal amount of arguments.
Change-Id: Idb83b6b82b38bded5b7e1756a41bb2df4cd58e3a
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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The packet that was creating the session was not tracked,
consequently the TCP flags seen within the session record
never got the value for the session to get treated as
being in the established state.
Test-escape, so add the TCP tests which test the
three phases of the TCP session life and make them all pass.
Change-Id: Ib048bc30c809a7f03be2de7e8361c2c281270348
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
(cherry picked from commit 754370f1b55d4102d21dd94676f2bda3170c7df0)
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It is useful to have the CLI to clear the existing sessions.
There was a work-in-progress CLI but it did not work properly.
Fix it and split into a separate "clear acl-plugin sessions",
and add a unit test into the extended connection-oriented tests.
Change-Id: I55889165ebcee139841fdac88747390903a05394
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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Add a bihash-based ACL lookup mechanism and make it a new default.
This changes the time required to lookup a 5-tuple match
from O(total_N_entries) to O(total_N_mask_types), where
"mask type" is an overall mask on the 5-tuple required
to represent an ACE.
For testing/comparison there is a temporary debug CLI
"set acl-plugin use-hash-acl-matching {0|1}", which,
when set to 0, makes the plugin use the "old" linear lookup,
and when set to 1, makes it use the hash-based lookup.
Based on the discussions on vpp-dev mailing list,
prevent assigning the ACL index to an interface,
when the ACL with that index is not defined,
also prevent deleting an ACL if that ACL is applied.
Also, for the easier debugging of the state, there are
new debug CLI commands to see the ACL plugin state at
several layers:
"show acl-plugin acl [index N]" - show a high-level
ACL representation, used for the linear lookup and
as a base for building the hashtable-based lookup.
Also shows if a given ACL is applied somewhere.
"show acl-plugin interface [sw_if_index N]" - show
which interfaces have which ACL(s) applied.
"show acl-plugin tables" - a lower-level debug command
used to see the state of all of the related data structures
at once. There are specifiers possible, which make
for a more focused and maybe augmented output:
"show acl-plugin tables acl [index N]"
show the "bitmask-ready" representations of the ACLs,
we well as the mask types and their associated indices.
"show acl-plutin tables mask"
show the derived mask types and their indices only.
"show acl-plugin tables applied [sw_if_index N]"
show the table of all of the ACEs applied for a given
sw_if_index or all interfaces.
"show acl-plugin tables hash [verbose N]"
show the 48x8 bihash used for the ACL lookup.
Change-Id: I89fff051424cb44bcb189e3cee04c1b8f76efc28
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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Fix a logic error related to timing out of the connections
following the active one. To avoid this class of issue in
the future, create corresponding testcases, as well as some
trivial sanity testcases for both IPv4 and IPv6.
Since these tests are timing-dependent and take up time,
mark them as extended tests.
Change-Id: I2c72bad5efda7db8aa9cb05801fe47928dc47927
Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
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Andrew Yourtchenko