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With the recent changes db36d948fa63ce950d94a5e8e9ebc37956543661, we try
to balance the receive window advertisements between payload lengths vs
segment overhead length. This works fine when segment size are much
higher than the overhead, but not otherwise. In cases where the segment
length is smaller than the segment overhead, we may end up not
advertising zero receive window for long time and end up tail-dropping
segments. This is especially pronounced when application socket reads
are slow or stopped. In this change we do not grow the right edge of
the receive window for smaller segment sizes similar to Linux.
Also, we keep track of the socket buffer usage and let the window grow
if the application is actively reading data.
Fixes #4903
PiperOrigin-RevId: 345832012
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To create DUTs in parallel, we need to create goroutines to do the setup. The
old code base has a lot of t.Fatal(f) usage in those setup functions which is
not great for this change: "FailNow must be called from the goroutine running
the test or benchmark function, not from other goroutines created during the
test" (https://golang.org/pkg/testing/#T.FailNow).
- Cleanup all t.Fatal(f) usage in DUT.Prepare()
- use goroutines to create DUTs in parallel
PiperOrigin-RevId: 344275809
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Added a new flag num_duts to the test runner to create multiple DUTs for the
testbench can connect to.
PiperOrigin-RevId: 344195435
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Because the code handles a bad header as "payload" right up to the last moment
we need to make sure payload handling does not remove the error information.
Fixes #4909
PiperOrigin-RevId: 344141690
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Group addressable endpoints can simply check if it has joined the
multicast group without maintaining address endpoints. This also
helps remove the dependency on AddressableEndpoint from
GroupAddressableEndpoint.
Now that group addresses are not tracked with address endpoints, we can
avoid accidentally obtaining a route with a multicast local address.
PiperOrigin-RevId: 343336912
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Updates #4427
PiperOrigin-RevId: 342703931
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The IPv6 reassembly test was also refactored to be easily extended with
more cases.
PiperOrigin-RevId: 339768605
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By exposing an ALL_TESTS list in defs.bzl we can make sure all packetimpact
users get to agree on the list of all tests. A defect in this approach is that
we have to keep a list of packetimpact_testbench rules in the BUILD file. An
helper validate_all_tests has been added to help keep BUILD and .bzl files in
sync.
PiperOrigin-RevId: 337411839
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blaze test <test_name>_fuchsia_test will run the corresponding packetimpact
test against fuchsia.
PiperOrigin-RevId: 329835290
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Updates #3374
PiperOrigin-RevId: 328378700
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This required minor fixes to the bazel wrapper. The "dut_platform" is
also changed to "native" to line-up with the system call tests and
remove the hard-coded "linux" and "netstack" strings.
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PiperOrigin-RevId: 322265513
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Before this change, running packetimpact tests produces:
parameter 'direct' must contain a list of elements, and may no longer
accept a depset. The deprecated behavior may be temporarily re-enabled
by setting --incompatible_disable_depset_inputs=false
The positional parameter to depset has been changed to mean `direct`
rather than its previous meaning of `items`. The documentation[0]
explains:
A positional parameter distinct from other parameters for legacy
support.
If --incompatible_disable_depset_items is false, this parameter
serves as the value of items.
If --incompatible_disable_depset_items is true, this parameter
serves as the value of direct.
See the documentation for these parameters for more details.
[0] https://docs.bazel.build/versions/master/skylark/lib/globals.html
PiperOrigin-RevId: 319555138
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PiperOrigin-RevId: 313300554
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PiperOrigin-RevId: 311424257
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PiperOrigin-RevId: 311285868
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