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This change moves all Docker images to a standard location, and abstracts the
build process so that they can be maintained in an automated fashion. This also
allows the images to be architecture-independent.
All images will now be referred to by the test framework via the canonical
`gvisor.dev/images/<name>`, where `<name>` is a function of the path within the
source tree.
In a subsequent change, continuous integration will be added so that the images
will always be correct and available locally.
In the end, using `bazel` for Docker containers is simply not possible. Given
that we already have the need to use `make` with the base container (for
Docker), we extend this approach to get more flexibility.
This change also adds a self-documenting and powerful Makefile that is intended
to replace the collection of scripts in scripts. Canonical (self-documenting)
targets can be added here for targets that understand which images need to be
loaded and/or built.
PiperOrigin-RevId: 308322438
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Tested:
Intentionally introduce an error and then run:
blaze test --test_output=streamed //third_party/gvisor/test/packetimpact/tests:tcp_outside_the_window_linux_test
PiperOrigin-RevId: 308114194
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This change adds a layer of abstraction around the internal Docker APIs,
and eliminates all direct dependencies on Dockerfiles in the infrastructure.
A subsequent change will automated the generation of local images (with
efficient caching). Note that this change drops the use of bazel container
rules, as that experiment does not seem to be viable.
PiperOrigin-RevId: 308095430
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This will make it easier to notice if a code change causes an existing test to
pass.
PiperOrigin-RevId: 308057978
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Fixed to match RFC 793 page 69.
Fixes #1607
PiperOrigin-RevId: 307334892
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PiperOrigin-RevId: 307328289
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TCP, in CLOSE-WAIT state, MUST return ACK with proper SEQ and ACK numbers after
recv a seg with OTW SEQ or unacc ACK number, and remain in same state. If the
connection is in a synchronized state, any unacceptable segment (out of window
sequence number or unacceptable acknowledgment number) must elicit only an empty
acknowledgment segment containing the current send-sequence number and an
acknowledgment indicating the next sequence number expected to be received, and
the connection remains in the same state.
PiperOrigin-RevId: 306897984
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The tests are based on RFC 793 page 69.
Updates #1607
PiperOrigin-RevId: 306768847
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Rather than have a struct for the state of each type of connection, such as
TCP/IPv4, UDP/IPv4, TCP/IPv6, etc, have a state for each layer, such as UDP,
TCP, IPv4, IPv6. Those states can be composed into connections.
Tested:
Existing unit tests still pass/fail as expected.
PiperOrigin-RevId: 306703180
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Attempt to redeliver TCP segments that are enqueued into a closing
TCP endpoint. This was being done for Established endpoints but not
for those that are listening or performing connection handshake.
Fixes #2417
PiperOrigin-RevId: 306598155
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TCP, in ESTABLISHED state, SHOULD piggyback acknowledgement with a segment being
transmitted (whenever possible) without incurring undue delay
PiperOrigin-RevId: 306474550
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Add Sniffer.Drain() which drains the socket's receive buffer by temporarily
setting the socket to non-blocking, and receiving in a loop until EINTR,
EWOULDBLOCK or EAGAIN. This method should be used when long periods of time
elapses without receiving on the socket, because uninteresting packets may have
piled up in the receive buffer, filling it up and causing packets critical to
test operation to be dropped.
PiperOrigin-RevId: 306380480
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PiperOrigin-RevId: 305879441
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PiperOrigin-RevId: 305466309
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RFC 1122 Section 3.7: A sending TCP MUST be robust against window shrinking,
which may cause the "useable window" to become negative.
PiperOrigin-RevId: 305377072
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PiperOrigin-RevId: 304098611
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PiperOrigin-RevId: 301872161
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PiperOrigin-RevId: 301382690
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