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Store all the socket level options in a struct and call {Get/Set}SockOpt on
this struct. This will avoid implementing socket level options on all
endpoints. This CL contains implementing one socket level option for tcp and
udp endpoints.
PiperOrigin-RevId: 342203981
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PiperOrigin-RevId: 342179912
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- Add log statements in service entry points.
- Propagate `-debug` flag from shim invokation to the service
- Load options when shim process is invoked to ensure runsc commands
use the correct set of options, e.g. --debug --debug-logs=...
- Add debug options to the shim configuration directly, so it doesn't
rely on containerd configuration (and restart) to enable shim debug.
- Save shim logs to dedicated file, so it's easier to read logs. They
would be mixed with containerd logs and hard to distinguish
otherwise.
PiperOrigin-RevId: 342179868
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RELNOTES: n/a
PiperOrigin-RevId: 342176296
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kernel.Task can only be used as context.Context by that Task's task goroutine.
This is violated in at least two places:
- In any case where one thread accesses the /proc/[tid] of any other thread,
passing the kernel.Task for [tid] as the context.Context is incorrect.
- Task.rebuildTraceContext() may be called by Kernel.RebuildTraceContexts()
outside the scope of any task goroutine.
Fix these (as well as a data race on Task.traceContext discovered during the
course of finding the latter).
PiperOrigin-RevId: 342174404
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children names map can be used to verify whether a child is expected
during walking, so that we can detect unexpected modifications that
deleted/renamed both the target file and the corresponding merkle tree
file.
PiperOrigin-RevId: 342170715
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Add a unit test for ipv4.Encode and a round trip test.
PiperOrigin-RevId: 342169517
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This reduces confusion with context.Context (which is also relevant to
kernel.Tasks) and is consistent with existing function kernel.LoadTaskImage().
PiperOrigin-RevId: 342167298
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The NIC should not hold network-layer state or logic - network packet
handling/forwarding should be performed at the network layer instead
of the NIC.
Fixes #4688
PiperOrigin-RevId: 342166985
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PiperOrigin-RevId: 342161204
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Separate the test cases from TestVerify so that the test names reflect
the test case better.
PiperOrigin-RevId: 342152754
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PiperOrigin-RevId: 341982672
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Fixes #1486.
PiperOrigin-RevId: 341966640
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Most packets don't have options but they are an integral part of the
standard. Teaching the ipv4 code how to handle them will simplify future
testing and use. Because Options are so rare it is worth making sure
that the extra work is kept out of the fast path as much as possible.
Prior to this change, all usages of the IHL field of the IPv4Fields/Encode
system set it to the same constant value except in a couple of tests
for bad values. From this change IHL will not be a constant as it will
depend on the size of any Options. Since ipv4.Encode() now handles the
options it becomes a possible source of errors to let the callers set
this value, so remove it entirely and calculate the value from the size
of the Options if present (or not) therefore guaranteeing a correct value.
Fixes #4709
RELNOTES: n/a
PiperOrigin-RevId: 341864765
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May help with debugging
https://syzkaller.appspot.com/bug?id=0d717bd7028dceeb4b38f09aab2841c398b41d81
PiperOrigin-RevId: 341640485
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This Notify was added as part of cl/279106406; but notifying `EventHUp`
in `FIN_WAIT2` is incorrect, as we want to only notify later on
`TIME_WAIT` or a reset. However, we do need to notify any blocked
waiters of an activity on the endpoint with `EventIn`|`EventOut`.
PiperOrigin-RevId: 341490913
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cl/340002915 modified the code to return EADDRNOTAVAIL if connect
is called for a localhost address which isn't set.
But actually, Linux returns EADDRNOTAVAIL for ipv6 addresses and ENETUNREACH
for ipv4 addresses.
Updates #4735
PiperOrigin-RevId: 341479129
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This will help to debug:
https://syzkaller.appspot.com/bug?id=0d717bd7028dceeb4b38f09aab2841c398b41d81
PiperOrigin-RevId: 341458715
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PiperOrigin-RevId: 341445910
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This lets us avoid treating a value of 0 as one reference. All references
using the refsvfs2 template must call InitRefs() before the reference is
incremented/decremented, or else a panic will occur. Therefore, it should be
pretty easy to identify missing InitRef calls during testing.
Updates #1486.
PiperOrigin-RevId: 341411151
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This is necessary to allow writes to files opened with O_WRONLY to go through
host FDs.
PiperOrigin-RevId: 341174509
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This is consistent with what Linux does. This was causing a PHP runtime test
failure. Fixed it for VFS2.
PiperOrigin-RevId: 341155209
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PiperOrigin-RevId: 341154192
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PiperOrigin-RevId: 341135083
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This avoids a needless allocation.
Updates #231
PiperOrigin-RevId: 341113160
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We can reuse information about whether a whiteout exists on a given file path
from stepLocked when creating a file at that path. This helps save an Unlink
call to the upper filesystem if the whiteout does NOT exist (common case).
Plumbs this information from lookupLocked() -> getChildLocked() -> stepLocked().
This also helped save a Lookup in RenameAt().
Fixes #1199
PiperOrigin-RevId: 341105351
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The root dentry was not created through Inode.Lookup, so we should not
release a reference even if inode.Keep() is true.
PiperOrigin-RevId: 341103220
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