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PiperOrigin-RevId: 383705129
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PiperOrigin-RevId: 383684320
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Commit 16b751b6c610ec2c5a913cb8a818e9239ee7da71 introduced a bug where writes of
zero size would end up queueing a zero sized segment which will cause the
sandbox to panic when trying to send a zero sized segment(e.g. after an RTO) as
netstack asserts that the all non FIN segments have size > 0.
This change adds the check for a zero sized payload back to avoid queueing
such segments. The associated test panics without the fix and passes with it.
PiperOrigin-RevId: 383677884
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PiperOrigin-RevId: 383481745
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PiperOrigin-RevId: 383472507
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PiperOrigin-RevId: 383426091
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PiperOrigin-RevId: 382788878
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More-specific route discovery allows hosts to pick a more appropriate
router for off-link destinations.
Fixes #6172.
PiperOrigin-RevId: 382779880
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This change makes the checklocks analyzer considerable more powerful, adding:
* The ability to traverse complex structures, e.g. to have multiple nested
fields as part of the annotation.
* The ability to resolve simple anonymous functions and closures, and perform
lock analysis across these invocations. This does not apply to closures that
are passed elsewhere, since it is not possible to know the context in which
they might be invoked.
* The ability to annotate return values in addition to receivers and other
parameters, with the same complex structures noted above.
* Ignoring locking semantics for "fresh" objects, i.e. objects that are
allocated in the local frame (typically a new-style function).
* Sanity checking of locking state across block transitions and returns, to
ensure that no unexpected locks are held.
Note that initially, most of these findings are excluded by a comprehensive
nogo.yaml. The findings that are included are fundamental lock violations.
The changes here should be relatively low risk, minor refactorings to either
include necessary annotations to simplify the code structure (in general
removing closures in favor of methods) so that the analyzer can be easily
track the lock state.
This change additional includes two changes to nogo itself:
* Sanity checking of all types to ensure that the binary and ast-derived
types have a consistent objectpath, to prevent the bug above from occurring
silently (and causing much confusion). This also requires a trick in
order to ensure that serialized facts are consumable downstream. This can
be removed with https://go-review.googlesource.com/c/tools/+/331789 merged.
* A minor refactoring to isolation the objdump settings in its own package.
This was originally used to implement the sanity check above, but this
information is now being passed another way. The minor refactor is preserved
however, since it cleans up the code slightly and is minimal risk.
PiperOrigin-RevId: 382613300
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In gVisor today its possible that when trying to bind a TCP socket
w/ SO_REUSEADDR specified and requesting the kernel pick a port by
setting port to zero can result in a previously bound port being
returned. This behaviour is incorrect as the user is clearly requesting
a free port. The behaviour is fine when the user explicity specifies
a port.
This change now checks if the user specified a port when making a port
reservation for a TCP port and only returns unbound ports even if
SO_REUSEADDR was specified.
Fixes #6209
PiperOrigin-RevId: 382607638
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PiperOrigin-RevId: 382603592
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Update/remove most syserror errors to linuxerr equivalents. For list
of removed errors, see //pkg/syserror/syserror.go.
PiperOrigin-RevId: 382574582
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PiperOrigin-RevId: 382427879
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Update all instances of the above errors to the faster linuxerr implementation.
With the temporary linuxerr.Equals(), no logical changes are made.
PiperOrigin-RevId: 382306655
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This change prepares for a later change which supports the NDP
Route Information option to discover more-specific routes, as
per RFC 4191.
Updates #6172.
PiperOrigin-RevId: 382225812
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PiperOrigin-RevId: 382202462
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The unordered map may generate different hash due to its order. The
children map needs to be sorted each time before hashing to avoid false
verification failure due to the map.
Store the sorted children map in verity dentry to avoid sorting it each
time verification happens.
Also serialize the whole VerityDescriptor struct to hash now that the
map is removed from it.
PiperOrigin-RevId: 382201560
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PiperOrigin-RevId: 382194711
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Remove three syserror entries duplicated in linuxerr. Because of the
linuxerr.Equals method, this is a mere change of return values from
syserror to linuxerr definitions.
Done with only these three errnos as CLs removing all grow to a significantly
large size.
PiperOrigin-RevId: 382173835
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The PID files are not used after they are read, so there is
no point in keeping them around until the shim is deleted.
Updates #6225
PiperOrigin-RevId: 382169916
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This is to ensure that Go 1.13 error wrapping is correctly
translated to gRPC errors before returning from the shim.
Updates #6225
PiperOrigin-RevId: 382120441
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In Linux the list entries command returns the name of the input interface assigned to the iptable rule.
iptables -S
> -A FORWARD -i docker0 -o docker0 -j ACCEPT
Meanwhile, in gVsior this interface name is ignored.
iptables -S
> -A FORWARD -o docker0 -j ACCEPT
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When TUN is created with IFF_NO_PI flag, there will be no Ethernet header and no packet info, therefore, both read and write will fail.
This commit fix this bug.
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PiperOrigin-RevId: 381982257
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There was a race wherein Accept() could fail, then the handshake would complete,
and then a waiter would be created to listen for the handshake. In such cases,
no notification was ever sent and the test timed out.
PiperOrigin-RevId: 381913041
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PiperOrigin-RevId: 381561785
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