Age | Commit message (Collapse) | Author |
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PiperOrigin-RevId: 308164359
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These methods let users eaily break the VectorisedView abstraction, and
allowed netstack to slip into pseudo-enforcement of the "all headers are
in the first View" invariant. Removing them and replacing with PullUp(n)
breaks this reliance and will make it easier to add iptables support and
rework network buffer management.
The new View.PullUp(n) method is low cost in the common case, when when
all the headers fit in the first View.
PiperOrigin-RevId: 308163542
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Ensure we use the correct architecture-specific defintion of epoll
event, and use go-marshal for serialization.
PiperOrigin-RevId: 308145677
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PiperOrigin-RevId: 308143529
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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 is the first automated GitHub actions workflow, and it simply applies
labels to pull request in a best-effort fashion.
PiperOrigin-RevId: 308112191
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PiperOrigin-RevId: 308100771
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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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Also fix returning EOF when 0 bytes are read.
PiperOrigin-RevId: 308089875
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Even though the default build option is to use 1.14, we want to be
want to keep the ability to target different Go versions for testing
and in case the new release has bugs.
PiperOrigin-RevId: 308078876
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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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PiperOrigin-RevId: 307977689
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PiperOrigin-RevId: 307941984
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Right now, sentry panics in this case:
panic: close of nil channel
goroutine 67 [running]:
pkg/tcpip/transport/tcp/tcp.(*endpoint).listen(0xc0000ce000, 0x9, 0x0)
pkg/tcpip/transport/tcp/endpoint.go:2208 +0x170
pkg/tcpip/transport/tcp/tcp.(*endpoint).Listen(0xc0000ce000, 0x9, 0xc0003a1ad0)
pkg/tcpip/transport/tcp/endpoint.go:2179 +0x50
Fixes #2468
PiperOrigin-RevId: 307896725
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This just provides some sane reminders and ticks a box on the GitHub UI. This
change also cleans up the issue template, as there is already an automatic
link to the repository's security disclosure policy.
PiperOrigin-RevId: 307868833
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PiperOrigin-RevId: 307841689
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PiperOrigin-RevId: 307812340
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Updates #1476.
PiperOrigin-RevId: 307726055
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Even though BoundEndpointAt is not yet implemented for gofer fs, allow path
resolution errors to be returned so that we can jump to tmpfs, where it is
implemented.
Updates #1476.
PiperOrigin-RevId: 307718335
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PiperOrigin-RevId: 307708653
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- Fix defer operation ordering in kernfs.Filesystem.AccessAt()
- Add AT_NULL entry in proc/pid/auvx
- Fix line padding in /proc/pid/maps
- Fix linux_dirent serialization for getdents(2)
- Remove file creation flags from vfs.FileDescription.statusFlags()
Updates #1193, #1035
PiperOrigin-RevId: 307704159
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PiperOrigin-RevId: 307680200
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This allows us to specify a richer configuration for the issue template, that
effectively moves a lot of the "metadata" from the template itself to the main
issue page.
PiperOrigin-RevId: 307666509
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This change:
- Drastically simplifies the synchronization model: filesystem structure is
both implementation-defined and implementation-synchronized.
- Allows implementations of vfs.DentryImpl to use implementation-specific
dentry types, reducing casts during path traversal.
- Doesn't require dentries representing non-directory files to waste space on a
map of children.
- Allows dentry revalidation and mount lookup to be correctly ordered (fixed
FIXME in fsimpl/gofer/filesystem.go).
- Removes the need to have two separate maps in gofer.dentry
(dentry.vfsd.children and dentry.negativeChildren) for positive and negative
lookups respectively.
//pkg/sentry/fsimpl/tmpfs/benchmark_test.go:
name old time/op new time/op delta
VFS2TmpfsStat/1-112 172ns ± 4% 165ns ± 3% -4.08% (p=0.002 n=9+9)
VFS2TmpfsStat/2-112 199ns ± 3% 195ns ±10% ~ (p=0.132 n=8+9)
VFS2TmpfsStat/3-112 230ns ± 2% 216ns ± 2% -6.15% (p=0.000 n=8+8)
VFS2TmpfsStat/8-112 390ns ± 2% 358ns ± 4% -8.33% (p=0.000 n=9+8)
VFS2TmpfsStat/64-112 2.20µs ± 3% 2.01µs ± 3% -8.48% (p=0.000 n=10+8)
VFS2TmpfsStat/100-112 3.42µs ± 9% 3.08µs ± 2% -9.82% (p=0.000 n=9+8)
VFS2TmpfsMountStat/1-112 278ns ± 1% 286ns ±15% ~ (p=0.712 n=8+10)
VFS2TmpfsMountStat/2-112 311ns ± 4% 298ns ± 2% -4.27% (p=0.000 n=9+8)
VFS2TmpfsMountStat/3-112 339ns ± 3% 330ns ± 9% ~ (p=0.070 n=8+9)
VFS2TmpfsMountStat/8-112 503ns ± 3% 466ns ± 3% -7.38% (p=0.000 n=8+8)
VFS2TmpfsMountStat/64-112 2.53µs ±16% 2.17µs ± 7% -14.19% (p=0.000 n=10+9)
VFS2TmpfsMountStat/100-112 3.60µs ± 4% 3.30µs ± 8% -8.33% (p=0.001 n=8+9)
Updates #1035
PiperOrigin-RevId: 307655892
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PiperOrigin-RevId: 307638329
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PiperOrigin-RevId: 307622320
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Sentry metrics with nanoseconds units are labeled as such, and non-cumulative
sentry metrics are supported.
PiperOrigin-RevId: 307621080
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PiperOrigin-RevId: 307598974
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See tools/nogo/README.md.
The checkescape tool is able to perform recursive escape analysis, using the
actual generated binary to confirm the results produced by the compiler itself.
As an initial use case, this replaces the manual escape analysis tests used for
go_marshal, and validates that the CopyIn and CopyOut paths will not require
any allocation or stack splits.
Updates #2243
PiperOrigin-RevId: 307532986
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Capture a timer's locker for each instance of a CancellableTimer so that
reassigning a tcpip.CancellableTimer does not cause a data race.
Reassigning a tcpip.CancellableTimer updates its underlying locker. When
a timer fires, it does a read of the timer's locker variable to lock it.
This read of the locker was not synchronized so a race existed where one
goroutine may reassign the timer (updating the locker) and another
handles the timer firing (attempts to lock the timer's locker).
Test: tcpip_test.TestCancellableTimerReassignment
PiperOrigin-RevId: 307499822
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This change renames the tools/images directory to tools/vm for clarity, and
adds a functional vm_test. Sharding is also added to the same test, and some
documentation added around key flags & variables to describe how they work.
Subsequent changes will add vm_tests for other cases, such as the runtime tests.
PiperOrigin-RevId: 307492245
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PiperOrigin-RevId: 307477185
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PiperOrigin-RevId: 307458938
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PiperOrigin-RevId: 307453436
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PiperOrigin-RevId: 307435879
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PiperOrigin-RevId: 307422746
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Instead of plumbing error through kernfs.Inode.Mode, panic if err != nil.
The errors that can result from an fstat syscall all indicate that something
is fundamentally wrong, and panicking should be acceptable.
PiperOrigin-RevId: 307406847
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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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PiperOrigin-RevId: 307166482
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PiperOrigin-RevId: 307166317
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prlimit was erroneously comparing UIDs and GIDs when getting/setting a process'
own limits. From the manpage:
To set or get the resources of a process other than itself, the caller must have
the CAP_SYS_RESOURCE capability, or the real, effective, and saved set user IDs
of the target process must match the real user ID of the caller and the real,
effective, and saved set group IDs of the target process must match the real
group ID of the caller.
PiperOrigin-RevId: 307127266
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Inform the netstack integrator when the netstack receives an NDP Router
Advertisement message with the NDP DNS Search List option with at least
one domain name. The stack will not maintain any state related to the
search list - the integrator is expected to maintain any required state
and invalidate domain names after their lifetime expires, or refresh the
lifetime when a new one is received for a known domain name.
Test:
- header_test.TestNDPDNSSearchListOption
- header_test.TestNDPDNSSearchListOptionSerialize
- header_test.TestNDPSearchListOptionDomainNameLabelInvalidSymbols
- header_test.TestNDPOptionsIterCheck
- stack_test.TestNDPDNSSearchListDispatch
PiperOrigin-RevId: 307109375
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This is to make easier to find corresponding logs in
case test fails.
PiperOrigin-RevId: 307104283
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These methods let users eaily break the VectorisedView abstraction, and
allowed netstack to slip into pseudo-enforcement of the "all headers are
in the first View" invariant. Removing them and replacing with PullUp(n)
breaks this reliance and will make it easier to add iptables support and
rework network buffer management.
The new View.PullUp(n) method is low cost in the common case, when when
all the headers fit in the first View.
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PiperOrigin-RevId: 307078788
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Included:
- loader_test.go RunTest and TestStartSignal VFS2
- container_test.go TestAppExitStatus on VFS2
- experimental flag added to runsc to turn on VFS2
Note: shared mounts are not yet supported.
PiperOrigin-RevId: 307070753
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PiperOrigin-RevId: 307069884
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PiperOrigin-RevId: 307053624
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This previously changed in 305699233, but this behaviour turned out to
be load bearing.
PiperOrigin-RevId: 307033802
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