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Since the syscall.Stat_t.Nlink is defined as different types on
amd64 and arm64(uint64 and uint32 respectively), we need to cast
them to a unified uint64 type in gVisor code.
Signed-off-by: Haibo Xu <haibo.xu@arm.com>
Change-Id: I7542b99b195c708f3fc49b1cbe6adebdd2f6e96b
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container.startContainers() cannot be called twice in a test
(e.g. TestMultiContainerLoadSandbox) because the cleanup
function deletes the rootDir, together with information from
all other containers that may exist.
PiperOrigin-RevId: 276591806
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PiperOrigin-RevId: 276172466
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Right now, we send each tcp packet separately, we call one system
call per-packet. This patch allows to generate multiple tcp packets
and send them by sendmmsg.
The arguable part of this CL is a way how to handle multiple headers.
This CL adds the next field to the Prepandable buffer.
Nginx test results:
Server Software: nginx/1.15.9
Server Hostname: 10.138.0.2
Server Port: 8080
Document Path: /10m.txt
Document Length: 10485760 bytes
w/o gso:
Concurrency Level: 5
Time taken for tests: 5.491 seconds
Complete requests: 100
Failed requests: 0
Total transferred: 1048600200 bytes
HTML transferred: 1048576000 bytes
Requests per second: 18.21 [#/sec] (mean)
Time per request: 274.525 [ms] (mean)
Time per request: 54.905 [ms] (mean, across all concurrent requests)
Transfer rate: 186508.03 [Kbytes/sec] received
sw-gso:
Concurrency Level: 5
Time taken for tests: 3.852 seconds
Complete requests: 100
Failed requests: 0
Total transferred: 1048600200 bytes
HTML transferred: 1048576000 bytes
Requests per second: 25.96 [#/sec] (mean)
Time per request: 192.576 [ms] (mean)
Time per request: 38.515 [ms] (mean, across all concurrent requests)
Transfer rate: 265874.92 [Kbytes/sec] received
w/o gso:
$ ./tcp_benchmark --client --duration 15 --ideal
[SUM] 0.0-15.1 sec 2.20 GBytes 1.25 Gbits/sec
software gso:
$ tcp_benchmark --client --duration 15 --ideal --gso $((1<<16)) --swgso
[SUM] 0.0-15.1 sec 3.99 GBytes 2.26 Gbits/sec
PiperOrigin-RevId: 276112677
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Like (AF_INET, SOCK_RAW) sockets, AF_PACKET sockets require CAP_NET_RAW. With
runsc, you'll need to pass `--net-raw=true` to enable them.
Binding isn't supported yet.
PiperOrigin-RevId: 275909366
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Obligatory https://xkcd.com/927
Fixes #626
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This change fixes several issues with the fsgofer host UDS support. Notably, it
adds support for SOCK_SEQPACKET and SOCK_DGRAM sockets [1]. It also fixes
unsafe use of unet.Socket, which could cause a panic if Socket.FD is called
when err != nil, and calls to Socket.FD with nothing to prevent the garbage
collector from destroying and closing the socket.
A set of tests is added to exercise host UDS access. This required extracting
most of the syscall test runner into a library that can be used by custom
tests.
Updates #235
Updates #1003
[1] N.B. SOCK_DGRAM sockets are likely not particularly useful, as a server can
only reply to a client that binds first. We don't allow bind, so these are
unlikely to be used.
PiperOrigin-RevId: 275558502
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Linux kernel before 4.19 doesn't implement a feature that updates
open FD after a file is open for write (and is copied to the upper
layer). Already open FD will continue to read the old file content
until they are reopened. This is especially problematic for gVisor
because it caches open files.
Flag was added to force readonly files to be reopenned when the
same file is open for write. This is only needed if using kernels
prior to 4.19.
Closes #1006
It's difficult to really test this because we never run on tests
on older kernels. I'm adding a test in GKE which uses kernels
with the overlayfs problem for 1.14 and lower.
PiperOrigin-RevId: 275115289
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fsgofer.attachPoint.Attach has a bunch of funky special logic to create a RW
file or connect a socket rather than creating a standard control file like
localFile.Walk.
This is unecessary and error-prone, as the attach point still has to go through
Open or Connect which will properly convert the control file to something
usable. As such, switch the logic to be equivalent to a simple Walk.
Updates #235
PiperOrigin-RevId: 274827872
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PiperOrigin-RevId: 274675428
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PiperOrigin-RevId: 274042343
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rt_sigreturn is required for signal handling (e.g., SIGSEGV for nil-pointer
dereference). Before this, nil-pointer dereferences cause a syscall violation
instead of a panic.
PiperOrigin-RevId: 274028767
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PiperOrigin-RevId: 273630282
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Options that do not change mount behavior inside the Sentry are
irrelevant and should not be used when looking for possible
incompatibilities between master and slave mounts.
PiperOrigin-RevId: 273593486
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Also change the default TTL to 64 to match Linux.
PiperOrigin-RevId: 273430341
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Adds two tests. One to make sure that $HOME is set when starting a container
via 'docker run' and one to make sure that $HOME is set for each container in a
multi-container sandbox.
Issue #701
PiperOrigin-RevId: 273395763
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PiperOrigin-RevId: 273365058
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b/135475885 was fixed by cl/271434565.
PiperOrigin-RevId: 272320178
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PiperOrigin-RevId: 272262368
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'docker exec' was getting CAP_NET_RAW even when --net-raw=false
because it was not filtered out from when copying container's
capabilities.
PiperOrigin-RevId: 272260451
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BUILD:85:1: in _pkg_deb rule //runsc:runsc-debian: target
'//runsc:runsc-debian' depends on deprecated target
'@bazel_tools//tools/build_defs/pkg:make_deb': The internal version of
make_deb is deprecated. Please use the replacement for pkg_deb from
https://github.com/bazelbuild/rules_pkg/blob/master/pkg.
PiperOrigin-RevId: 271590386
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Updates #235
PiperOrigin-RevId: 271475319
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Signed-off-by: Kenta Tada <Kenta.Tada@sony.com>
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PiperOrigin-RevId: 271235134
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PiperOrigin-RevId: 271207152
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Also removes the need for protocol names.
PiperOrigin-RevId: 271186030
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This removes the F_DUPFD_CLOEXEC support for the gofer, previously
required when depending on the STL net package.
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