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Updates #1
PiperOrigin-RevId: 201760129
Change-Id: Ifd8ce9e0f93c6771083dc9bf8d35a2800c13481a
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The interfaces and their addresses are already available via
the stack Intefaces and InterfaceAddrs.
Also add some tests as we had no tests around SIOCGIFCONF. I also added the socket_netgofer lifecycle for IOCTL tests.
PiperOrigin-RevId: 201744863
Change-Id: Ie0a285a2a2f859fa0cafada13201d5941b95499a
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PiperOrigin-RevId: 201742160
Change-Id: Ia9fa1442287c5f9e1196fb117c41536a80f6bb31
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PiperOrigin-RevId: 201738936
Change-Id: Ib75136415e28e8df0c742acd6b9512d4809fe3a8
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PiperOrigin-RevId: 201729703
Change-Id: I486900b0c6ec59533b88da225a5829c474e35a70
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The shutdown behavior where we return EAGAIN for sockets
which are non-blocking is only correct for packet based sockets.
SOCK_STREAM sockets should return EOF.
PiperOrigin-RevId: 201703055
Change-Id: I20b25ceca7286c37766936475855959706fc5397
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Added a number of unimplemented flags required for using runsc's
Checkpoint and Restore with Docker. Modified the "image-path" flag to
require a directory instead of a file.
PiperOrigin-RevId: 201697486
Change-Id: I55883df2f1bbc3ec3c395e0ca160ce189e5e7eba
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PiperOrigin-RevId: 201596247
Change-Id: Id22f47b2cdcbe14aa0d930f7807ba75f91a56724
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SendExternalSignal is no longer called before CreateProcess, so it can
enforce this simplified precondition.
StartForwarding, and after Kernel.Start.
PiperOrigin-RevId: 201591170
Change-Id: Ib7022ef7895612d7d82a00942ab59fa433c4d6e9
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SIGUSR2 was being masked out to be used as a way to dump sentry
stacks. This could cause compatibility problems in cases anyone
uses SIGUSR2 to communicate with the container init process.
PiperOrigin-RevId: 201575374
Change-Id: I312246e828f38ad059139bb45b8addc2ed055d74
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FIOASYNC and friends are used to send signals when a file is ready for IO.
This may or may not be needed by Nginx. While Nginx does use it, it is unclear
if the code that uses it has any effect.
PiperOrigin-RevId: 201550828
Change-Id: I7ba05a7db4eb2dfffde11e9bd9a35b65b98d7f50
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Before a container can be restored, the mounts must be configured.
The root and submounts and their key information is compiled into a
RestoreEnvironment.
Future code will be added to set this created environment before
restoring a container.
Tests to ensure the correct environment were added.
PiperOrigin-RevId: 201544637
Change-Id: Ia894a8b0f80f31104d1c732e113b1d65a4697087
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Restore creates a new container and uses the given image-path to load a saved
image of a previous container. Restore command is plumbed through container
and sandbox. This command does not work yet - more to come.
PiperOrigin-RevId: 201541229
Change-Id: I864a14c799ce3717d99bcdaaebc764281863d06f
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PiperOrigin-RevId: 201539050
Change-Id: I36cbf270fa5ad25de507ecb919e4005eda6aa16d
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PiperOrigin-RevId: 201529295
Change-Id: I55eb516ec6d14fbcd48593a3d61f724adc253a23
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PiperOrigin-RevId: 201428433
Change-Id: I72de1e46788ec84f61513416bb690956e515907e
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PiperOrigin-RevId: 201427731
Change-Id: I5cbee383ec51c02b7892ec7812cbbdc426be8991
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PiperOrigin-RevId: 201418619
Change-Id: I7961b027394d98422642f829bc54745838c138bd
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It prints sandbox stacks to the log to help debug stuckness. I expect
that many more options will be added in the future.
PiperOrigin-RevId: 201405931
Change-Id: I87e560800cd5a5a7b210dc25a5661363c8c3a16e
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PiperOrigin-RevId: 201404066
Change-Id: I8a0f2405d0192d412386592c1872a67582921b12
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PiperOrigin-RevId: 201401727
Change-Id: Ia5589882ba58a00efb522ab372e206b7e8e62aee
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This will be used with the upcoming e2e image tests.
PiperOrigin-RevId: 201400832
Change-Id: I49509314e16ea54655ea8060dbf511a04a7a8f79
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Almost all of the hundreds of pending signal queues are empty upon save.
PiperOrigin-RevId: 201380318
Change-Id: I40747072435299de681d646e0862efac0637e172
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Containers are created as processes in the sandbox. Of the many things that
don't work yet, the biggest issue is that the fsgofer is launched with its root
as the sandbox's root directory. Thus, when a container is started and wants to
read anything (including the init binary of the container), the gofer tries to
serve from sandbox's root (which basically just has pause), not the container's.
PiperOrigin-RevId: 201294560
Change-Id: I6423aa8830538959c56ae908ce067e4199d627b1
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After shutdown(SHUT_RD) calls to recv /w MSG_DONTWAIT or with
O_NONBLOCK should result in a EAGAIN and not 0. Blocking sockets
should return 0 as they would have otherwise blocked indefinitely.
PiperOrigin-RevId: 201271123
Change-Id: If589b69c17fa5b9ff05bcf9e44024da9588c8876
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When running multi-container, child containers are added after the filters have
been installed. Thus, lstat must be in the set of allowed syscalls.
PiperOrigin-RevId: 201269550
Change-Id: I03f2e6675a53d462ed12a0f651c10049b76d4c52
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PiperOrigin-RevId: 201269072
Change-Id: Ia542c5a42b5b5d21c1104a003ddff5279644d309
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Verified that this is no longer flakey over 10K repetitions.
PiperOrigin-RevId: 201267499
Change-Id: I793c916fe725412aec25953f764cb4f52c9fbed3
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Instead, CPUs will be created dynamically. We also allow a relatively
efficient mechanism for stealing and notifying when a vCPU becomes
available via unlock.
Since the number of vCPUs is no longer fixed at machine creation time,
we make the dirtySet packing more efficient. This has the pleasant side
effect of cutting out the unsafe address space code.
PiperOrigin-RevId: 201266691
Change-Id: I275c73525a4f38e3714b9ac0fd88731c26adfe66
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No need to save thousands of zerovalue buckets.
PiperOrigin-RevId: 201258598
Change-Id: I5d3ea7b6a5345117ab4f610332d5288ca550be33
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Resume checks the status of the container and unpauses the kernel
if its status is paused. Otherwise nothing happens.
Tests were added to ensure that the process is in the correct state
after various commands.
PiperOrigin-RevId: 201251234
Change-Id: Ifd11b336c33b654fea6238738f864fcf2bf81e19
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Correct a data race in rpcinet where a shutdown and recvmsg can
race around shutown flags.
PiperOrigin-RevId: 201238366
Change-Id: I5eb06df4a2b4eba331eeb5de19076213081d581f
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The new policy is identical to FSCACHE (which caches everything in memory), but
it also flushes writes to the backing fs agent immediately.
All gofer cache policy decisions have been moved into the cachePolicy type.
Previously they were sprinkled around the codebase.
There are many different things that we cache (page cache, negative dirents,
dirent LRU, unstable attrs, readdir results....), and I don't think we should
have individual flags to control each of these. Instead, we should have a few
high-level cache policies that are consistent and useful to users. This
refactoring makes it easy to add more such policies.
PiperOrigin-RevId: 201206937
Change-Id: I6e225c382b2e5e1b0ad4ccf8ca229873f4cd389d
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PiperOrigin-RevId: 201205733
Change-Id: I300307b0668989ba7776ab9e3faee71efdd33f46
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Because rpcinet will emulate a blocking socket backed by an rpc based
non-blocking socket. In the event of a shutdown(SHUT_RD) followed by a
read a non-blocking socket is allowed to return an EWOULDBLOCK however
since a blocking socket knows it cannot receive anymore data it would
block indefinitely and in this situation linux returns 0. We have to
track this on the rpcinet sentry side so we can emulate that behavior
because the remote side has no way to know if the socket is actually
blocking within the sentry.
PiperOrigin-RevId: 201201618
Change-Id: I4ac3a7b74b5dae471ab97c2e7d33b83f425aedac
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A file descriptor was added as a flag to boot so a state file can restore a
container that was checkpointed.
PiperOrigin-RevId: 201068699
Change-Id: I18e96069488ffa3add468861397f3877725544aa
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PiperOrigin-RevId: 201068427
Change-Id: If03c8c22907e6ef623f39c8ae5316fdd76cf80cb
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PiperOrigin-RevId: 201049912
Change-Id: Idd937492217a4c2ca3d59c602e41576a3b203dd9
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PiperOrigin-RevId: 201018483
Change-Id: I52fe3d01c83c8a2f0e9275d9d88c37e46fa224a2
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PiperOrigin-RevId: 201012131
Change-Id: I5cd69e795555129319eb41135ecf26db9a0b1fcb
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Add support for control messages, but at this time the only
control message that the sentry will support here is SO_TIMESTAMP.
PiperOrigin-RevId: 200922230
Change-Id: I63a852d9305255625d9df1d989bd46a66e93c446
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Like runc, the pause command will pause the processes of the given container.
It will set that container's status to "paused."
A resume command will be be added to unpause and continue running the process.
PiperOrigin-RevId: 200789624
Change-Id: I72a5d7813d90ecfc4d01cc252d6018855016b1ea
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PiperOrigin-RevId: 200784607
Change-Id: I39aa6ee632936dcbb00fc298adccffa606e9f4c0
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PiperOrigin-RevId: 200770591
Change-Id: Ifc096d88615b63135210d93c2b4cee2eaecf1eee
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PiperOrigin-RevId: 200768923
Change-Id: I4b8da10bcac296e8171fe6754abec5aabfec5e65
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PiperOrigin-RevId: 200765756
Change-Id: Ie4266f32e4e977df3925eb29f3fbb756e0337606
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PiperOrigin-RevId: 200759323
Change-Id: I683b2edcc2188304c4ca563e46af457e23625905
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Signal is arg 1, not 2.
Killing with SIGABRT is useful to get Go traces.
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Change-Id: I0b78e34a9de3fb3385108e26fdb4ff6e9347aeff
PiperOrigin-RevId: 200742743
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There are circumstances under which the redpill call will not generate
the appropriate action and notification. Replace this call with an
explicit notification, which is guaranteed to transition as well as
perform the futex wake.
PiperOrigin-RevId: 200726934
Change-Id: Ie19e008a6007692dd7335a31a8b59f0af6e54aaa
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The right number to use is the number of processors assigned to the cgroup. But until
we make the sandbox join the respective cgroup, just use the number of processors on
the host.
Closes #65, closes #66
PiperOrigin-RevId: 200725483
Change-Id: I34a566b1a872e26c66f56fa6e3100f42aaf802b1
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